diff options
Diffstat (limited to 'drivers')
109 files changed, 876 insertions, 2346 deletions
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c index 89f52440fcf4..0e8343f585bb 100644 --- a/drivers/hv/hv_kvp.c +++ b/drivers/hv/hv_kvp.c @@ -212,11 +212,13 @@ kvp_respond_to_host(char *key, char *value, int error) * The windows host expects the key/value pair to be encoded * in utf16. */ - keylen = utf8s_to_utf16s(key_name, strlen(key_name), - (wchar_t *)kvp_data->data.key); + keylen = utf8s_to_utf16s(key_name, strlen(key_name), UTF16_HOST_ENDIAN, + (wchar_t *) kvp_data->data.key, + HV_KVP_EXCHANGE_MAX_KEY_SIZE / 2); kvp_data->data.key_size = 2*(keylen + 1); /* utf16 encoding */ - valuelen = utf8s_to_utf16s(value, strlen(value), - (wchar_t *)kvp_data->data.value); + valuelen = utf8s_to_utf16s(value, strlen(value), UTF16_HOST_ENDIAN, + (wchar_t *) kvp_data->data.value, + HV_KVP_EXCHANGE_MAX_VALUE_SIZE / 2); kvp_data->data.value_size = 2*(valuelen + 1); /* utf16 encoding */ kvp_data->data.value_type = REG_SZ; /* all our values are strings */ diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 75eca7645227..53a7bc07dd8d 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -6,6 +6,8 @@ obj-$(CONFIG_USB) += core/ +obj-$(CONFIG_USB_OTG_UTILS) += otg/ + obj-$(CONFIG_USB_DWC3) += dwc3/ obj-$(CONFIG_USB_MON) += mon/ @@ -51,7 +53,6 @@ obj-$(CONFIG_USB_SPEEDTOUCH) += atm/ obj-$(CONFIG_USB_MUSB_HDRC) += musb/ obj-$(CONFIG_USB_RENESAS_USBHS) += renesas_usbhs/ -obj-$(CONFIG_USB_OTG_UTILS) += otg/ obj-$(CONFIG_USB_GADGET) += gadget/ obj-$(CONFIG_USB_COMMON) += usb-common.o diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c index 57ae44cd0b88..6f3b6e267398 100644 --- a/drivers/usb/c67x00/c67x00-drv.c +++ b/drivers/usb/c67x00/c67x00-drv.c @@ -225,21 +225,10 @@ static struct platform_driver c67x00_driver = { .name = "c67x00", }, }; -MODULE_ALIAS("platform:c67x00"); - -static int __init c67x00_init(void) -{ - return platform_driver_register(&c67x00_driver); -} -static void __exit c67x00_exit(void) -{ - platform_driver_unregister(&c67x00_driver); -} - -module_init(c67x00_init); -module_exit(c67x00_exit); +module_platform_driver(c67x00_driver); MODULE_AUTHOR("Peter Korsgaard, Jan Veldeman, Grant Likely"); MODULE_DESCRIPTION("Cypress C67X00 USB Controller Driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:c67x00"); diff --git a/drivers/usb/c67x00/c67x00-hcd.c b/drivers/usb/c67x00/c67x00-hcd.c index d3e1356d091e..75e47b860a53 100644 --- a/drivers/usb/c67x00/c67x00-hcd.c +++ b/drivers/usb/c67x00/c67x00-hcd.c @@ -271,7 +271,6 @@ static void c67x00_hcd_irq(struct c67x00_sie *sie, u16 int_status, u16 msg) if (int_status & SOFEOP_FLG(sie->sie_num)) { c67x00_ll_usb_clear_status(sie, SOF_EOP_IRQ_FLG); c67x00_sched_kick(c67x00); - set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); } } diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index e8c564a53346..d9d9340abe60 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -58,12 +58,62 @@ static struct usb_driver acm_driver; static struct tty_driver *acm_tty_driver; static struct acm *acm_table[ACM_TTY_MINORS]; -static DEFINE_MUTEX(open_mutex); +static DEFINE_MUTEX(acm_table_lock); -#define ACM_READY(acm) (acm && acm->dev && acm->port.count) +/* + * acm_table accessors + */ -static const struct tty_port_operations acm_port_ops = { -}; +/* + * Look up an ACM structure by index. If found and not disconnected, increment + * its refcount and return it with its mutex held. + */ +static struct acm *acm_get_by_index(unsigned index) +{ + struct acm *acm; + + mutex_lock(&acm_table_lock); + acm = acm_table[index]; + if (acm) { + mutex_lock(&acm->mutex); + if (acm->disconnected) { + mutex_unlock(&acm->mutex); + acm = NULL; + } else { + tty_port_get(&acm->port); + mutex_unlock(&acm->mutex); + } + } + mutex_unlock(&acm_table_lock); + return acm; +} + +/* + * Try to find an available minor number and if found, associate it with 'acm'. + */ +static int acm_alloc_minor(struct acm *acm) +{ + int minor; + + mutex_lock(&acm_table_lock); + for (minor = 0; minor < ACM_TTY_MINORS; minor++) { + if (!acm_table[minor]) { + acm_table[minor] = acm; + break; + } + } + mutex_unlock(&acm_table_lock); + + return minor; +} + +/* Release the minor number associated with 'acm'. */ +static void acm_release_minor(struct acm *acm) +{ + mutex_lock(&acm_table_lock); + acm_table[acm->minor] = NULL; + mutex_unlock(&acm_table_lock); +} /* * Functions for ACM control messages. @@ -267,9 +317,6 @@ static void acm_ctrl_irq(struct urb *urb) goto exit; } - if (!ACM_READY(acm)) - goto exit; - usb_mark_last_busy(acm->dev); data = (unsigned char *)(dr + 1); @@ -429,8 +476,7 @@ static void acm_write_bulk(struct urb *urb) spin_lock_irqsave(&acm->write_lock, flags); acm_write_done(acm, wb); spin_unlock_irqrestore(&acm->write_lock, flags); - if (ACM_READY(acm)) - schedule_work(&acm->work); + schedule_work(&acm->work); } static void acm_softint(struct work_struct *work) @@ -440,8 +486,6 @@ static void acm_softint(struct work_struct *work) dev_vdbg(&acm->data->dev, "%s\n", __func__); - if (!ACM_READY(acm)) - return; tty = tty_port_tty_get(&acm->port); if (!tty) return; @@ -453,93 +497,122 @@ static void acm_softint(struct work_struct *work) * TTY handlers */ -static int acm_tty_open(struct tty_struct *tty, struct file *filp) +static int acm_tty_install(struct tty_driver *driver, struct tty_struct *tty) { struct acm *acm; - int rv = -ENODEV; - - mutex_lock(&open_mutex); + int retval; - acm = acm_table[tty->index]; - if (!acm || !acm->dev) - goto out; - else - rv = 0; + dev_dbg(tty->dev, "%s\n", __func__); - dev_dbg(&acm->control->dev, "%s\n", __func__); + acm = acm_get_by_index(tty->index); + if (!acm) + return -ENODEV; - set_bit(TTY_NO_WRITE_SPLIT, &tty->flags); + retval = tty_init_termios(tty); + if (retval) + goto error_init_termios; tty->driver_data = acm; - tty_port_tty_set(&acm->port, tty); - if (usb_autopm_get_interface(acm->control) < 0) - goto early_bail; - else - acm->control->needs_remote_wakeup = 1; + /* Final install (we use the default method) */ + tty_driver_kref_get(driver); + tty->count++; + driver->ttys[tty->index] = tty; + + return 0; + +error_init_termios: + tty_port_put(&acm->port); + return retval; +} + +static int acm_tty_open(struct tty_struct *tty, struct file *filp) +{ + struct acm *acm = tty->driver_data; + + dev_dbg(tty->dev, "%s\n", __func__); + + return tty_port_open(&acm->port, tty, filp); +} + +static int acm_port_activate(struct tty_port *port, struct tty_struct *tty) +{ + struct acm *acm = container_of(port, struct acm, port); + int retval = -ENODEV; + + dev_dbg(&acm->control->dev, "%s\n", __func__); mutex_lock(&acm->mutex); - if (acm->port.count++) { - mutex_unlock(&acm->mutex); - usb_autopm_put_interface(acm->control); - goto out; - } + if (acm->disconnected) + goto disconnected; + + retval = usb_autopm_get_interface(acm->control); + if (retval) + goto error_get_interface; + + /* + * FIXME: Why do we need this? Allocating 64K of physically contiguous + * memory is really nasty... + */ + set_bit(TTY_NO_WRITE_SPLIT, &tty->flags); + acm->control->needs_remote_wakeup = 1; acm->ctrlurb->dev = acm->dev; if (usb_submit_urb(acm->ctrlurb, GFP_KERNEL)) { dev_err(&acm->control->dev, "%s - usb_submit_urb(ctrl irq) failed\n", __func__); - goto bail_out; + goto error_submit_urb; } - if (0 > acm_set_control(acm, acm->ctrlout = ACM_CTRL_DTR | ACM_CTRL_RTS) && + acm->ctrlout = ACM_CTRL_DTR | ACM_CTRL_RTS; + if (acm_set_control(acm, acm->ctrlout) < 0 && (acm->ctrl_caps & USB_CDC_CAP_LINE)) - goto bail_out; + goto error_set_control; usb_autopm_put_interface(acm->control); if (acm_submit_read_urbs(acm, GFP_KERNEL)) - goto bail_out; - - set_bit(ASYNCB_INITIALIZED, &acm->port.flags); - rv = tty_port_block_til_ready(&acm->port, tty, filp); + goto error_submit_read_urbs; mutex_unlock(&acm->mutex); -out: - mutex_unlock(&open_mutex); - return rv; -bail_out: - acm->port.count--; - mutex_unlock(&acm->mutex); + return 0; + +error_submit_read_urbs: + acm->ctrlout = 0; + acm_set_control(acm, acm->ctrlout); +error_set_control: + usb_kill_urb(acm->ctrlurb); +error_submit_urb: usb_autopm_put_interface(acm->control); -early_bail: - mutex_unlock(&open_mutex); - tty_port_tty_set(&acm->port, NULL); - return -EIO; +error_get_interface: +disconnected: + mutex_unlock(&acm->mutex); + return retval; } -static void acm_tty_unregister(struct acm *acm) +static void acm_port_destruct(struct tty_port *port) { - int i; + struct acm *acm = container_of(port, struct acm, port); + + dev_dbg(&acm->control->dev, "%s\n", __func__); tty_unregister_device(acm_tty_driver, acm->minor); + acm_release_minor(acm); usb_put_intf(acm->control); - acm_table[acm->minor] = NULL; - usb_free_urb(acm->ctrlurb); - for (i = 0; i < ACM_NW; i++) - usb_free_urb(acm->wb[i].urb); - for (i = 0; i < acm->rx_buflimit; i++) - usb_free_urb(acm->read_urbs[i]); kfree(acm->country_codes); kfree(acm); } -static void acm_port_down(struct acm *acm) +static void acm_port_shutdown(struct tty_port *port) { + struct acm *acm = container_of(port, struct acm, port); int i; - if (acm->dev) { + dev_dbg(&acm->control->dev, "%s\n", __func__); + + mutex_lock(&acm->mutex); + if (!acm->disconnected) { usb_autopm_get_interface(acm->control); acm_set_control(acm, acm->ctrlout = 0); usb_kill_urb(acm->ctrlurb); @@ -550,40 +623,28 @@ static void acm_port_down(struct acm *acm) acm->control->needs_remote_wakeup = 0; usb_autopm_put_interface(acm->control); } + mutex_unlock(&acm->mutex); +} + +static void acm_tty_cleanup(struct tty_struct *tty) +{ + struct acm *acm = tty->driver_data; + dev_dbg(&acm->control->dev, "%s\n", __func__); + tty_port_put(&acm->port); } static void acm_tty_hangup(struct tty_struct *tty) { struct acm *acm = tty->driver_data; + dev_dbg(&acm->control->dev, "%s\n", __func__); tty_port_hangup(&acm->port); - mutex_lock(&open_mutex); - acm_port_down(acm); - mutex_unlock(&open_mutex); } static void acm_tty_close(struct tty_struct *tty, struct file *filp) { struct acm *acm = tty->driver_data; - - /* Perform the closing process and see if we need to do the hardware - shutdown */ - if (!acm) - return; - - mutex_lock(&open_mutex); - if (tty_port_close_start(&acm->port, tty, filp) == 0) { - if (!acm->dev) { - tty_port_tty_set(&acm->port, NULL); - acm_tty_unregister(acm); - tty->driver_data = NULL; - } - mutex_unlock(&open_mutex); - return; - } - acm_port_down(acm); - tty_port_close_end(&acm->port, tty); - tty_port_tty_set(&acm->port, NULL); - mutex_unlock(&open_mutex); + dev_dbg(&acm->control->dev, "%s\n", __func__); + tty_port_close(&acm->port, tty, filp); } static int acm_tty_write(struct tty_struct *tty, @@ -595,8 +656,6 @@ static int acm_tty_write(struct tty_struct *tty, int wbn; struct acm_wb *wb; - if (!ACM_READY(acm)) - return -EINVAL; if (!count) return 0; @@ -625,8 +684,6 @@ static int acm_tty_write(struct tty_struct *tty, static int acm_tty_write_room(struct tty_struct *tty) { struct acm *acm = tty->driver_data; - if (!ACM_READY(acm)) - return -EINVAL; /* * Do not let the line discipline to know that we have a reserve, * or it might get too enthusiastic. @@ -637,7 +694,11 @@ static int acm_tty_write_room(struct tty_struct *tty) static int acm_tty_chars_in_buffer(struct tty_struct *tty) { struct acm *acm = tty->driver_data; - if (!ACM_READY(acm)) + /* + * if the device was unplugged then any remaining characters fell out + * of the connector ;) + */ + if (acm->disconnected) return 0; /* * This is inaccurate (overcounts), but it works. @@ -649,9 +710,6 @@ static void acm_tty_throttle(struct tty_struct *tty) { struct acm *acm = tty->driver_data; - if (!ACM_READY(acm)) - return; - spin_lock_irq(&acm->read_lock); acm->throttle_req = 1; spin_unlock_irq(&acm->read_lock); @@ -662,9 +720,6 @@ static void acm_tty_unthrottle(struct tty_struct *tty) struct acm *acm = tty->driver_data; unsigned int was_throttled; - if (!ACM_READY(acm)) - return; - spin_lock_irq(&acm->read_lock); was_throttled = acm->throttled; acm->throttled = 0; @@ -679,8 +734,7 @@ static int acm_tty_break_ctl(struct tty_struct *tty, int state) { struct acm *acm = tty->driver_data; int retval; - if (!ACM_READY(acm)) - return -EINVAL; + retval = acm_send_break(acm, state ? 0xffff : 0); if (retval < 0) dev_dbg(&acm->control->dev, "%s - send break failed\n", @@ -692,9 +746,6 @@ static int acm_tty_tiocmget(struct tty_struct *tty) { struct acm *acm = tty->driver_data; - if (!ACM_READY(acm)) - return -EINVAL; - return (acm->ctrlout & ACM_CTRL_DTR ? TIOCM_DTR : 0) | (acm->ctrlout & ACM_CTRL_RTS ? TIOCM_RTS : 0) | (acm->ctrlin & ACM_CTRL_DSR ? TIOCM_DSR : 0) | @@ -709,9 +760,6 @@ static int acm_tty_tiocmset(struct tty_struct *tty, struct acm *acm = tty->driver_data; unsigned int newctrl; - if (!ACM_READY(acm)) - return -EINVAL; - newctrl = acm->ctrlout; set = (set & TIOCM_DTR ? ACM_CTRL_DTR : 0) | (set & TIOCM_RTS ? ACM_CTRL_RTS : 0); @@ -728,11 +776,6 @@ static int acm_tty_tiocmset(struct tty_struct *tty, static int acm_tty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { - struct acm *acm = tty->driver_data; - - if (!ACM_READY(acm)) - return -EINVAL; - return -ENOIOCTLCMD; } @@ -756,9 +799,6 @@ static void acm_tty_set_termios(struct tty_struct *tty, struct usb_cdc_line_coding newline; int newctrl = acm->ctrlout; - if (!ACM_READY(acm)) - return; - newline.dwDTERate = cpu_to_le32(tty_get_baud_rate(tty)); newline.bCharFormat = termios->c_cflag & CSTOPB ? 2 : 0; newline.bParityType = termios->c_cflag & PARENB ? @@ -788,6 +828,12 @@ static void acm_tty_set_termios(struct tty_struct *tty, } } +static const struct tty_port_operations acm_port_ops = { + .shutdown = acm_port_shutdown, + .activate = acm_port_activate, + .destruct = acm_port_destruct, +}; + /* * USB probe and disconnect routines. */ @@ -1047,12 +1093,6 @@ skip_normal_probe: } made_compressed_probe: dev_dbg(&intf->dev, "interfaces are valid\n"); - for (minor = 0; minor < ACM_TTY_MINORS && acm_table[minor]; minor++); - - if (minor == ACM_TTY_MINORS) { - dev_err(&intf->dev, "no more free acm devices\n"); - return -ENODEV; - } acm = kzalloc(sizeof(struct acm), GFP_KERNEL); if (acm == NULL) { @@ -1060,6 +1100,13 @@ made_compressed_probe: goto alloc_fail; } + minor = acm_alloc_minor(acm); + if (minor == ACM_TTY_MINORS) { + dev_err(&intf->dev, "no more free acm devices\n"); + kfree(acm); + return -ENODEV; + } + ctrlsize = usb_endpoint_maxp(epctrl); readsize = usb_endpoint_maxp(epread) * (quirks == SINGLE_RX_URB ? 1 : 2); @@ -1218,8 +1265,6 @@ skip_countries: usb_get_intf(control_interface); tty_register_device(acm_tty_driver, minor, &control_interface->dev); - acm_table[minor] = acm; - return 0; alloc_fail7: for (i = 0; i < ACM_NW; i++) @@ -1234,6 +1279,7 @@ alloc_fail5: alloc_fail4: usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); alloc_fail2: + acm_release_minor(acm); kfree(acm); alloc_fail: return -ENOMEM; @@ -1259,12 +1305,16 @@ static void acm_disconnect(struct usb_interface *intf) struct acm *acm = usb_get_intfdata(intf); struct usb_device *usb_dev = interface_to_usbdev(intf); struct tty_struct *tty; + int i; + + dev_dbg(&intf->dev, "%s\n", __func__); /* sibling interface is already cleaning up */ if (!acm) return; - mutex_lock(&open_mutex); + mutex_lock(&acm->mutex); + acm->disconnected = true; if (acm->country_codes) { device_remove_file(&acm->control->dev, &dev_attr_wCountryCodes); @@ -1272,33 +1322,32 @@ static void acm_disconnect(struct usb_interface *intf) &dev_attr_iCountryCodeRelDate); } device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); - acm->dev = NULL; usb_set_intfdata(acm->control, NULL); usb_set_intfdata(acm->data, NULL); + mutex_unlock(&acm->mutex); + + tty = tty_port_tty_get(&acm->port); + if (tty) { + tty_vhangup(tty); + tty_kref_put(tty); + } stop_data_traffic(acm); + usb_free_urb(acm->ctrlurb); + for (i = 0; i < ACM_NW; i++) + usb_free_urb(acm->wb[i].urb); + for (i = 0; i < acm->rx_buflimit; i++) + usb_free_urb(acm->read_urbs[i]); acm_write_buffers_free(acm); - usb_free_coherent(usb_dev, acm->ctrlsize, acm->ctrl_buffer, - acm->ctrl_dma); + usb_free_coherent(usb_dev, acm->ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); acm_read_buffers_free(acm); if (!acm->combined_interfaces) usb_driver_release_interface(&acm_driver, intf == acm->control ? acm->data : acm->control); - if (acm->port.count == 0) { - acm_tty_unregister(acm); - mutex_unlock(&open_mutex); - return; - } - - mutex_unlock(&open_mutex); - tty = tty_port_tty_get(&acm->port); - if (tty) { - tty_hangup(tty); - tty_kref_put(tty); - } + tty_port_put(&acm->port); } #ifdef CONFIG_PM @@ -1325,16 +1374,10 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message) if (cnt) return 0; - /* - we treat opened interfaces differently, - we must guard against open - */ - mutex_lock(&acm->mutex); - if (acm->port.count) + if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags)) stop_data_traffic(acm); - mutex_unlock(&acm->mutex); return 0; } @@ -1353,8 +1396,7 @@ static int acm_resume(struct usb_interface *intf) if (cnt) return 0; - mutex_lock(&acm->mutex); - if (acm->port.count) { + if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags)) { rv = usb_submit_urb(acm->ctrlurb, GFP_NOIO); spin_lock_irq(&acm->write_lock); @@ -1378,7 +1420,6 @@ static int acm_resume(struct usb_interface *intf) } err_out: - mutex_unlock(&acm->mutex); return rv; } @@ -1387,15 +1428,14 @@ static int acm_reset_resume(struct usb_interface *intf) struct acm *acm = usb_get_intfdata(intf); struct tty_struct *tty; - mutex_lock(&acm->mutex); - if (acm->port.count) { + if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags)) { tty = tty_port_tty_get(&acm->port); if (tty) { tty_hangup(tty); tty_kref_put(tty); } } - mutex_unlock(&acm->mutex); + return acm_resume(intf); } @@ -1594,8 +1634,10 @@ static struct usb_driver acm_driver = { */ static const struct tty_operations acm_ops = { + .install = acm_tty_install, .open = acm_tty_open, .close = acm_tty_close, + .cleanup = acm_tty_cleanup, .hangup = acm_tty_hangup, .write = acm_tty_write, .write_room = acm_tty_write_room, diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index ca7937f26e27..35ef887b7417 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -101,6 +101,7 @@ struct acm { int transmitting; spinlock_t write_lock; struct mutex mutex; + bool disconnected; struct usb_cdc_line_coding line; /* bits, stop, parity */ struct work_struct work; /* work queue entry for line discipline waking up */ unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */ diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index e3beaf229ee3..d8cf06f186f2 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -86,6 +86,7 @@ struct async { void __user *userbuffer; void __user *userurb; struct urb *urb; + unsigned int mem_usage; int status; u32 secid; u8 bulk_addr; @@ -108,8 +109,44 @@ enum snoop_when { #define USB_DEVICE_DEV MKDEV(USB_DEVICE_MAJOR, 0) -#define MAX_USBFS_BUFFER_SIZE 16384 +/* Limit on the total amount of memory we can allocate for transfers */ +static unsigned usbfs_memory_mb = 16; +module_param(usbfs_memory_mb, uint, 0644); +MODULE_PARM_DESC(usbfs_memory_mb, + "maximum MB allowed for usbfs buffers (0 = no limit)"); +/* Hard limit, necessary to avoid aithmetic overflow */ +#define USBFS_XFER_MAX (UINT_MAX / 2 - 1000000) + +static atomic_t usbfs_memory_usage; /* Total memory currently allocated */ + +/* Check whether it's okay to allocate more memory for a transfer */ +static int usbfs_increase_memory_usage(unsigned amount) +{ + unsigned lim; + + /* + * Convert usbfs_memory_mb to bytes, avoiding overflows. + * 0 means use the hard limit (effectively unlimited). + */ + lim = ACCESS_ONCE(usbfs_memory_mb); + if (lim == 0 || lim > (USBFS_XFER_MAX >> 20)) + lim = USBFS_XFER_MAX; + else + lim <<= 20; + + atomic_add(amount, &usbfs_memory_usage); + if (atomic_read(&usbfs_memory_usage) <= lim) + return 0; + atomic_sub(amount, &usbfs_memory_usage); + return -ENOMEM; +} + +/* Memory for a transfer is being deallocated */ +static void usbfs_decrease_memory_usage(unsigned amount) +{ + atomic_sub(amount, &usbfs_memory_usage); +} static int connected(struct dev_state *ps) { @@ -253,6 +290,7 @@ static void free_async(struct async *as) kfree(as->urb->transfer_buffer); kfree(as->urb->setup_packet); usb_free_urb(as->urb); + usbfs_decrease_memory_usage(as->mem_usage); kfree(as); } @@ -792,9 +830,15 @@ static int proc_control(struct dev_state *ps, void __user *arg) wLength = ctrl.wLength; /* To suppress 64k PAGE_SIZE warning */ if (wLength > PAGE_SIZE) return -EINVAL; + ret = usbfs_increase_memory_usage(PAGE_SIZE + sizeof(struct urb) + + sizeof(struct usb_ctrlrequest)); + if (ret) + return ret; tbuf = (unsigned char *)__get_free_page(GFP_KERNEL); - if (!tbuf) - return -ENOMEM; + if (!tbuf) { + ret = -ENOMEM; + goto done; + } tmo = ctrl.timeout; snoop(&dev->dev, "control urb: bRequestType=%02x " "bRequest=%02x wValue=%04x " @@ -806,8 +850,8 @@ static int proc_control(struct dev_state *ps, void __user *arg) if (ctrl.bRequestType & 0x80) { if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data, ctrl.wLength)) { - free_page((unsigned long)tbuf); - return -EINVAL; + ret = -EINVAL; + goto done; } pipe = usb_rcvctrlpipe(dev, 0); snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT, NULL, 0); @@ -821,15 +865,15 @@ static int proc_control(struct dev_state *ps, void __user *arg) tbuf, max(i, 0)); if ((i > 0) && ctrl.wLength) { if (copy_to_user(ctrl.data, tbuf, i)) { - free_page((unsigned long)tbuf); - return -EFAULT; + ret = -EFAULT; + goto done; } } } else { if (ctrl.wLength) { if (copy_from_user(tbuf, ctrl.data, ctrl.wLength)) { - free_page((unsigned long)tbuf); - return -EFAULT; + ret = -EFAULT; + goto done; } } pipe = usb_sndctrlpipe(dev, 0); @@ -843,14 +887,18 @@ static int proc_control(struct dev_state *ps, void __user *arg) usb_lock_device(dev); snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE, NULL, 0); } - free_page((unsigned long)tbuf); if (i < 0 && i != -EPIPE) { dev_printk(KERN_DEBUG, &dev->dev, "usbfs: USBDEVFS_CONTROL " "failed cmd %s rqt %u rq %u len %u ret %d\n", current->comm, ctrl.bRequestType, ctrl.bRequest, ctrl.wLength, i); } - return i; + ret = i; + done: + free_page((unsigned long) tbuf); + usbfs_decrease_memory_usage(PAGE_SIZE + sizeof(struct urb) + + sizeof(struct usb_ctrlrequest)); + return ret; } static int proc_bulk(struct dev_state *ps, void __user *arg) @@ -877,15 +925,20 @@ static int proc_bulk(struct dev_state *ps, void __user *arg) if (!usb_maxpacket(dev, pipe, !(bulk.ep & USB_DIR_IN))) return -EINVAL; len1 = bulk.len; - if (len1 > MAX_USBFS_BUFFER_SIZE) + if (len1 >= USBFS_XFER_MAX) return -EINVAL; - if (!(tbuf = kmalloc(len1, GFP_KERNEL))) - return -ENOMEM; + ret = usbfs_increase_memory_usage(len1 + sizeof(struct urb)); + if (ret) + return ret; + if (!(tbuf = kmalloc(len1, GFP_KERNEL))) { + ret = -ENOMEM; + goto done; + } tmo = bulk.timeout; if (bulk.ep & 0x80) { if (len1 && !access_ok(VERIFY_WRITE, bulk.data, len1)) { - kfree(tbuf); - return -EINVAL; + ret = -EINVAL; + goto done; } snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT, NULL, 0); @@ -896,15 +949,15 @@ static int proc_bulk(struct dev_state *ps, void __user *arg) if (!i && len2) { if (copy_to_user(bulk.data, tbuf, len2)) { - kfree(tbuf); - return -EFAULT; + ret = -EFAULT; + goto done; } } } else { if (len1) { if (copy_from_user(tbuf, bulk.data, len1)) { - kfree(tbuf); - return -EFAULT; + ret = -EFAULT; + goto done; } } snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT, tbuf, len1); @@ -914,10 +967,11 @@ static int proc_bulk(struct dev_state *ps, void __user *arg) usb_lock_device(dev); snoop_urb(dev, NULL, pipe, len2, i, COMPLETE, NULL, 0); } + ret = (i < 0 ? i : len2); + done: kfree(tbuf); - if (i < 0) - return i; - return len2; + usbfs_decrease_memory_usage(len1 + sizeof(struct urb)); + return ret; } static int proc_resetep(struct dev_state *ps, void __user *arg) @@ -1062,7 +1116,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, { struct usbdevfs_iso_packet_desc *isopkt = NULL; struct usb_host_endpoint *ep; - struct async *as; + struct async *as = NULL; struct usb_ctrlrequest *dr = NULL; unsigned int u, totlen, isofrmlen; int ret, ifnum = -1; @@ -1095,32 +1149,30 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, } if (!ep) return -ENOENT; + + u = 0; switch(uurb->type) { case USBDEVFS_URB_TYPE_CONTROL: if (!usb_endpoint_xfer_control(&ep->desc)) return -EINVAL; - /* min 8 byte setup packet, - * max 8 byte setup plus an arbitrary data stage */ - if (uurb->buffer_length < 8 || - uurb->buffer_length > (8 + MAX_USBFS_BUFFER_SIZE)) + /* min 8 byte setup packet */ + if (uurb->buffer_length < 8) return -EINVAL; dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL); if (!dr) return -ENOMEM; if (copy_from_user(dr, uurb->buffer, 8)) { - kfree(dr); - return -EFAULT; + ret = -EFAULT; + goto error; } if (uurb->buffer_length < (le16_to_cpup(&dr->wLength) + 8)) { - kfree(dr); - return -EINVAL; + ret = -EINVAL; + goto error; } ret = check_ctrlrecip(ps, dr->bRequestType, dr->bRequest, le16_to_cpup(&dr->wIndex)); - if (ret) { - kfree(dr); - return ret; - } + if (ret) + goto error; uurb->number_of_packets = 0; uurb->buffer_length = le16_to_cpup(&dr->wLength); uurb->buffer += 8; @@ -1138,6 +1190,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, __le16_to_cpup(&dr->wValue), __le16_to_cpup(&dr->wIndex), __le16_to_cpup(&dr->wLength)); + u = sizeof(struct usb_ctrlrequest); break; case USBDEVFS_URB_TYPE_BULK: @@ -1151,8 +1204,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, goto interrupt_urb; } uurb->number_of_packets = 0; - if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE) - return -EINVAL; break; case USBDEVFS_URB_TYPE_INTERRUPT: @@ -1160,8 +1211,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, return -EINVAL; interrupt_urb: uurb->number_of_packets = 0; - if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE) - return -EINVAL; break; case USBDEVFS_URB_TYPE_ISO: @@ -1176,50 +1225,53 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, if (!(isopkt = kmalloc(isofrmlen, GFP_KERNEL))) return -ENOMEM; if (copy_from_user(isopkt, iso_frame_desc, isofrmlen)) { - kfree(isopkt); - return -EFAULT; + ret = -EFAULT; + goto error; } for (totlen = u = 0; u < uurb->number_of_packets; u++) { /* arbitrary limit, * sufficient for USB 2.0 high-bandwidth iso */ if (isopkt[u].length > 8192) { - kfree(isopkt); - return -EINVAL; + ret = -EINVAL; + goto error; } totlen += isopkt[u].length; } - /* 3072 * 64 microframes */ - if (totlen > 196608) { - kfree(isopkt); - return -EINVAL; - } + u *= sizeof(struct usb_iso_packet_descriptor); uurb->buffer_length = totlen; break; default: return -EINVAL; } + + if (uurb->buffer_length >= USBFS_XFER_MAX) { + ret = -EINVAL; + goto error; + } if (uurb->buffer_length > 0 && !access_ok(is_in ? VERIFY_WRITE : VERIFY_READ, uurb->buffer, uurb->buffer_length)) { - kfree(isopkt); - kfree(dr); - return -EFAULT; + ret = -EFAULT; + goto error; } as = alloc_async(uurb->number_of_packets); if (!as) { - kfree(isopkt); - kfree(dr); - return -ENOMEM; + ret = -ENOMEM; + goto error; } + u += sizeof(struct async) + sizeof(struct urb) + uurb->buffer_length; + ret = usbfs_increase_memory_usage(u); + if (ret) + goto error; + as->mem_usage = u; + if (uurb->buffer_length > 0) { as->urb->transfer_buffer = kmalloc(uurb->buffer_length, GFP_KERNEL); if (!as->urb->transfer_buffer) { - kfree(isopkt); - kfree(dr); - free_async(as); - return -ENOMEM; + ret = -ENOMEM; + goto error; } /* Isochronous input data may end up being discontiguous * if some of the packets are short. Clear the buffer so @@ -1253,6 +1305,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, as->urb->transfer_buffer_length = uurb->buffer_length; as->urb->setup_packet = (unsigned char *)dr; + dr = NULL; as->urb->start_frame = uurb->start_frame; as->urb->number_of_packets = uurb->number_of_packets; if (uurb->type == USBDEVFS_URB_TYPE_ISO || @@ -1268,6 +1321,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, totlen += isopkt[u].length; } kfree(isopkt); + isopkt = NULL; as->ps = ps; as->userurb = arg; if (is_in && uurb->buffer_length > 0) @@ -1282,8 +1336,8 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, if (!is_in && uurb->buffer_length > 0) { if (copy_from_user(as->urb->transfer_buffer, uurb->buffer, uurb->buffer_length)) { - free_async(as); - return -EFAULT; + ret = -EFAULT; + goto error; } } snoop_urb(ps->dev, as->userurb, as->urb->pipe, @@ -1329,10 +1383,16 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, snoop_urb(ps->dev, as->userurb, as->urb->pipe, 0, ret, COMPLETE, NULL, 0); async_removepending(as); - free_async(as); - return ret; + goto error; } return 0; + + error: + kfree(isopkt); + kfree(dr); + if (as) + free_async(as); + return ret; } static int proc_submiturb(struct dev_state *ps, void __user *arg) diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 45887a0ff873..73abd8a0647d 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -45,10 +45,12 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, struct usb_dynid *dynid; u32 idVendor = 0; u32 idProduct = 0; + unsigned int bInterfaceClass = 0; int fields = 0; int retval = 0; - fields = sscanf(buf, "%x %x", &idVendor, &idProduct); + fields = sscanf(buf, "%x %x %x", &idVendor, &idProduct, + &bInterfaceClass); if (fields < 2) return -EINVAL; @@ -60,6 +62,10 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids, dynid->id.idVendor = idVendor; dynid->id.idProduct = idProduct; dynid->id.match_flags = USB_DEVICE_ID_MATCH_DEVICE; + if (fields == 3) { + dynid->id.bInterfaceClass = (u8)bInterfaceClass; + dynid->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS; + } spin_lock(&dynids->lock); list_add_tail(&dynid->node, &dynids->list); diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index a004db35f6d0..d136b8f4c8a7 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -453,10 +453,6 @@ static int resume_common(struct device *dev, int event) pci_set_master(pci_dev); - clear_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); - if (hcd->shared_hcd) - clear_bit(HCD_FLAG_SAW_IRQ, &hcd->shared_hcd->flags); - if (hcd->driver->pci_resume && !HCD_DEAD(hcd)) { if (event != PM_EVENT_AUTO_RESUME) wait_for_companions(pci_dev, hcd); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 13222d352a61..eb19cba34ac9 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -658,7 +658,7 @@ error: len > offsetof(struct usb_device_descriptor, bDeviceProtocol)) ((struct usb_device_descriptor *) ubuf)-> - bDeviceProtocol = 1; + bDeviceProtocol = USB_HUB_PR_HS_SINGLE_TT; } /* any errors get returned through the urb completion */ @@ -1168,20 +1168,6 @@ int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb, if (urb->unlinked) return -EBUSY; urb->unlinked = status; - - /* IRQ setup can easily be broken so that USB controllers - * never get completion IRQs ... maybe even the ones we need to - * finish unlinking the initial failed usb_set_address() - * or device descriptor fetch. - */ - if (!HCD_SAW_IRQ(hcd) && !is_root_hub(urb->dev)) { - dev_warn(hcd->self.controller, "Unlink after no-IRQ? " - "Controller is probably using the wrong IRQ.\n"); - set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); - if (hcd->shared_hcd) - set_bit(HCD_FLAG_SAW_IRQ, &hcd->shared_hcd->flags); - } - return 0; } EXPORT_SYMBOL_GPL(usb_hcd_check_unlink_urb); @@ -1412,11 +1398,10 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, ret = -EAGAIN; else urb->transfer_flags |= URB_DMA_MAP_SG; - if (n != urb->num_sgs) { - urb->num_sgs = n; + urb->num_mapped_sgs = n; + if (n != urb->num_sgs) urb->transfer_flags |= URB_DMA_SG_COMBINED; - } } else if (urb->sg) { struct scatterlist *sg = urb->sg; urb->transfer_dma = dma_map_page( @@ -2148,16 +2133,12 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd) */ local_irq_save(flags); - if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd))) { + if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd))) rc = IRQ_NONE; - } else if (hcd->driver->irq(hcd) == IRQ_NONE) { + else if (hcd->driver->irq(hcd) == IRQ_NONE) rc = IRQ_NONE; - } else { - set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); - if (hcd->shared_hcd) - set_bit(HCD_FLAG_SAW_IRQ, &hcd->shared_hcd->flags); + else rc = IRQ_HANDLED; - } local_irq_restore(flags); return rc; diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 79781461eec9..79d339e2e700 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -84,7 +84,7 @@ struct usb_hub { static inline int hub_is_superspeed(struct usb_device *hdev) { - return (hdev->descriptor.bDeviceProtocol == 3); + return (hdev->descriptor.bDeviceProtocol == USB_HUB_PR_SS); } /* Protect struct usb_device->state and ->children members @@ -1041,58 +1041,58 @@ static int hub_configure(struct usb_hub *hub, dev_dbg(hub_dev, "standalone hub\n"); switch (wHubCharacteristics & HUB_CHAR_LPSM) { - case 0x00: - dev_dbg(hub_dev, "ganged power switching\n"); - break; - case 0x01: - dev_dbg(hub_dev, "individual port power switching\n"); - break; - case 0x02: - case 0x03: - dev_dbg(hub_dev, "no power switching (usb 1.0)\n"); - break; + case HUB_CHAR_COMMON_LPSM: + dev_dbg(hub_dev, "ganged power switching\n"); + break; + case HUB_CHAR_INDV_PORT_LPSM: + dev_dbg(hub_dev, "individual port power switching\n"); + break; + case HUB_CHAR_NO_LPSM: + case HUB_CHAR_LPSM: + dev_dbg(hub_dev, "no power switching (usb 1.0)\n"); + break; } switch (wHubCharacteristics & HUB_CHAR_OCPM) { - case 0x00: - dev_dbg(hub_dev, "global over-current protection\n"); - break; - case 0x08: - dev_dbg(hub_dev, "individual port over-current protection\n"); - break; - case 0x10: - case 0x18: - dev_dbg(hub_dev, "no over-current protection\n"); - break; + case HUB_CHAR_COMMON_OCPM: + dev_dbg(hub_dev, "global over-current protection\n"); + break; + case HUB_CHAR_INDV_PORT_OCPM: + dev_dbg(hub_dev, "individual port over-current protection\n"); + break; + case HUB_CHAR_NO_OCPM: + case HUB_CHAR_OCPM: + dev_dbg(hub_dev, "no over-current protection\n"); + break; } spin_lock_init (&hub->tt.lock); INIT_LIST_HEAD (&hub->tt.clear_list); INIT_WORK(&hub->tt.clear_work, hub_tt_work); switch (hdev->descriptor.bDeviceProtocol) { - case 0: - break; - case 1: - dev_dbg(hub_dev, "Single TT\n"); - hub->tt.hub = hdev; - break; - case 2: - ret = usb_set_interface(hdev, 0, 1); - if (ret == 0) { - dev_dbg(hub_dev, "TT per port\n"); - hub->tt.multi = 1; - } else - dev_err(hub_dev, "Using single TT (err %d)\n", - ret); - hub->tt.hub = hdev; - break; - case 3: - /* USB 3.0 hubs don't have a TT */ - break; - default: - dev_dbg(hub_dev, "Unrecognized hub protocol %d\n", - hdev->descriptor.bDeviceProtocol); - break; + case USB_HUB_PR_FS: + break; + case USB_HUB_PR_HS_SINGLE_TT: + dev_dbg(hub_dev, "Single TT\n"); + hub->tt.hub = hdev; + break; + case USB_HUB_PR_HS_MULTI_TT: + ret = usb_set_interface(hdev, 0, 1); + if (ret == 0) { + dev_dbg(hub_dev, "TT per port\n"); + hub->tt.multi = 1; + } else + dev_err(hub_dev, "Using single TT (err %d)\n", + ret); + hub->tt.hub = hdev; + break; + case USB_HUB_PR_SS: + /* USB 3.0 hubs don't have a TT */ + break; + default: + dev_dbg(hub_dev, "Unrecognized hub protocol %d\n", + hdev->descriptor.bDeviceProtocol); + break; } /* Note 8 FS bit times == (8 bits / 12000000 bps) ~= 666ns */ @@ -1360,7 +1360,6 @@ descriptor_error: return -ENODEV; } -/* No BKL needed */ static int hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data) { diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 3888778582c4..45e8479c377d 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -132,20 +132,6 @@ static inline int is_usb_device_driver(struct device_driver *drv) for_devices; } -/* translate USB error codes to codes user space understands */ -static inline int usb_translate_errors(int error_code) -{ - switch (error_code) { - case 0: - case -ENOMEM: - case -ENODEV: - return error_code; - default: - return -EIO; - } -} - - /* for labeling diagnostics */ extern const char *usbcore_name; diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index 5809bf413d76..3274ac8f1200 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -394,9 +394,9 @@ static struct platform_driver dwc3_omap_driver = { }, }; +module_platform_driver(dwc3_omap_driver); + MODULE_ALIAS("platform:omap-dwc3"); MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_DESCRIPTION("DesignWare USB3 OMAP Glue Layer"); - -module_platform_driver(dwc3_omap_driver); diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index d64072c06ef3..71108c26c562 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -15,6 +15,7 @@ menuconfig USB_GADGET tristate "USB Gadget Support" + select NLS help USB is a master/slave protocol, organized with one master host (such as a PC) controlling up to 127 peripheral devices. diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index e00cf92409ce..f75c56a259a9 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -2814,20 +2814,7 @@ static struct platform_driver udc_driver = { #endif }; -static int __init qe_udc_init(void) -{ - printk(KERN_INFO "%s: %s, %s\n", driver_name, driver_desc, - DRIVER_VERSION); - return platform_driver_register(&udc_driver); -} - -static void __exit qe_udc_exit(void) -{ - platform_driver_unregister(&udc_driver); -} - -module_init(qe_udc_init); -module_exit(qe_udc_exit); +module_platform_driver(udc_driver); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR(DRIVER_AUTHOR); diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index 892412103dd8..0114fd33fbe2 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -2463,24 +2463,11 @@ static struct platform_driver udc_driver = { #endif }, }; -MODULE_ALIAS("platform:pxa-u2o"); + +module_platform_driver(udc_driver); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR("Chao Xie <chao.xie@marvell.com>"); MODULE_VERSION(DRIVER_VERSION); MODULE_LICENSE("GPL"); - - -static int __init init(void) -{ - return platform_driver_register(&udc_driver); -} -module_init(init); - - -static void __exit cleanup(void) -{ - platform_driver_unregister(&udc_driver); -} -module_exit(cleanup); - +MODULE_ALIAS("platform:pxa-u2o"); diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index b31448229f0b..c59156c0061d 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -3467,18 +3467,7 @@ static struct platform_driver s3c_hsotg_driver = { .resume = s3c_hsotg_resume, }; -static int __init s3c_hsotg_modinit(void) -{ - return platform_driver_register(&s3c_hsotg_driver); -} - -static void __exit s3c_hsotg_modexit(void) -{ - platform_driver_unregister(&s3c_hsotg_driver); -} - -module_init(s3c_hsotg_modinit); -module_exit(s3c_hsotg_modexit); +module_platform_driver(s3c_hsotg_driver); MODULE_DESCRIPTION("Samsung S3C USB High-speed/OtG device"); MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c index 20a553b46aed..787ac5baae92 100644 --- a/drivers/usb/gadget/s3c-hsudc.c +++ b/drivers/usb/gadget/s3c-hsudc.c @@ -1377,21 +1377,10 @@ static struct platform_driver s3c_hsudc_driver = { }, .probe = s3c_hsudc_probe, }; -MODULE_ALIAS("platform:s3c-hsudc"); - -static int __init s3c_hsudc_modinit(void) -{ - return platform_driver_register(&s3c_hsudc_driver); -} -static void __exit s3c_hsudc_modexit(void) -{ - platform_driver_unregister(&s3c_hsudc_driver); -} - -module_init(s3c_hsudc_modinit); -module_exit(s3c_hsudc_modexit); +module_platform_driver(s3c_hsudc_driver); MODULE_DESCRIPTION("Samsung S3C24XX USB high-speed controller driver"); MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com>"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:s3c-hsudc"); diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c index 58c4d37d312a..4d25b9009edf 100644 --- a/drivers/usb/gadget/usbstring.c +++ b/drivers/usb/gadget/usbstring.c @@ -13,82 +13,17 @@ #include <linux/string.h> #include <linux/device.h> #include <linux/init.h> +#include <linux/nls.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> -#include <asm/unaligned.h> - - -static int utf8_to_utf16le(const char *s, __le16 *cp, unsigned len) -{ - int count = 0; - u8 c; - u16 uchar; - - /* this insists on correct encodings, though not minimal ones. - * BUT it currently rejects legit 4-byte UTF-8 code points, - * which need surrogate pairs. (Unicode 3.1 can use them.) - */ - while (len != 0 && (c = (u8) *s++) != 0) { - if (unlikely(c & 0x80)) { - // 2-byte sequence: - // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx - if ((c & 0xe0) == 0xc0) { - uchar = (c & 0x1f) << 6; - - c = (u8) *s++; - if ((c & 0xc0) != 0x80) - goto fail; - c &= 0x3f; - uchar |= c; - - // 3-byte sequence (most CJKV characters): - // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx - } else if ((c & 0xf0) == 0xe0) { - uchar = (c & 0x0f) << 12; - - c = (u8) *s++; - if ((c & 0xc0) != 0x80) - goto fail; - c &= 0x3f; - uchar |= c << 6; - - c = (u8) *s++; - if ((c & 0xc0) != 0x80) - goto fail; - c &= 0x3f; - uchar |= c; - - /* no bogus surrogates */ - if (0xd800 <= uchar && uchar <= 0xdfff) - goto fail; - - // 4-byte sequence (surrogate pairs, currently rare): - // 11101110wwwwzzzzyy + 110111yyyyxxxxxx - // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx - // (uuuuu = wwww + 1) - // FIXME accept the surrogate code points (only) - - } else - goto fail; - } else - uchar = c; - put_unaligned_le16(uchar, cp++); - count++; - len--; - } - return count; -fail: - return -1; -} - /** * usb_gadget_get_string - fill out a string descriptor * @table: of c strings encoded using UTF-8 * @id: string id, from low byte of wValue in get string descriptor - * @buf: at least 256 bytes + * @buf: at least 256 bytes, must be 16-bit aligned * * Finds the UTF-8 string matching the ID, and converts it into a * string descriptor in utf16-le. @@ -125,8 +60,8 @@ usb_gadget_get_string (struct usb_gadget_strings *table, int id, u8 *buf) /* string descriptors have length, tag, then UTF16-LE text */ len = min ((size_t) 126, strlen (s->s)); - memset (buf + 2, 0, 2 * len); /* zero all the bytes */ - len = utf8_to_utf16le(s->s, (__le16 *)&buf[2], len); + len = utf8s_to_utf16s(s->s, len, UTF16_LITTLE_ENDIAN, + (wchar_t *) &buf[2], 126); if (len < 0) return -EINVAL; buf [0] = (len + 1) * 2; diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c index 18bafa99fe57..bf7441afed16 100644 --- a/drivers/usb/host/ehci-au1xxx.c +++ b/drivers/usb/host/ehci-au1xxx.c @@ -23,6 +23,7 @@ static int au1xxx_ehci_setup(struct usb_hcd *hcd) int ret = ehci_init(hcd); ehci->need_io_watchdog = 0; + ehci_reset(ehci); return ret; } diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 3ff9f82f7263..c4c76ab204c1 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -48,6 +48,10 @@ #include <asm/system.h> #include <asm/unaligned.h> +#if defined(CONFIG_PPC_PS3) +#include <asm/firmware.h> +#endif + /*-------------------------------------------------------------------------*/ /* @@ -230,12 +234,58 @@ static int ehci_halt (struct ehci_hcd *ehci) STS_HALT, STS_HALT, 16 * 125); } +#if defined(CONFIG_USB_SUSPEND) && defined(CONFIG_PPC_PS3) + +/* + * The EHCI controller of the Cell Super Companion Chip used in the + * PS3 will stop the root hub after all root hub ports are suspended. + * When in this condition handshake will return -ETIMEDOUT. The + * STS_HLT bit will not be set, so inspection of the frame index is + * used here to test for the condition. If the condition is found + * return success to allow the USB suspend to complete. + */ + +static int handshake_for_broken_root_hub(struct ehci_hcd *ehci, + void __iomem *ptr, u32 mask, u32 done, + int usec) +{ + unsigned int old_index; + int error; + + if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) + return -ETIMEDOUT; + + old_index = ehci_read_frame_index(ehci); + + error = handshake(ehci, ptr, mask, done, usec); + + if (error == -ETIMEDOUT && ehci_read_frame_index(ehci) == old_index) + return 0; + + return error; +} + +#else + +static int handshake_for_broken_root_hub(struct ehci_hcd *ehci, + void __iomem *ptr, u32 mask, u32 done, + int usec) +{ + return -ETIMEDOUT; +} + +#endif + static int handshake_on_error_set_halt(struct ehci_hcd *ehci, void __iomem *ptr, u32 mask, u32 done, int usec) { int error; error = handshake(ehci, ptr, mask, done, usec); + if (error == -ETIMEDOUT) + error = handshake_for_broken_root_hub(ehci, ptr, mask, done, + usec); + if (error) { ehci_halt(ehci); ehci->rh_state = EHCI_RH_HALTED; @@ -620,6 +670,7 @@ static int ehci_init(struct usb_hcd *hcd) hw = ehci->async->hw; hw->hw_next = QH_NEXT(ehci, ehci->async->qh_dma); hw->hw_info1 = cpu_to_hc32(ehci, QH_HEAD); + hw->hw_info1 |= cpu_to_hc32(ehci, (1 << 7)); /* I = 1 */ hw->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT); hw->hw_qtd_next = EHCI_LIST_END(ehci); ehci->async->qh_state = QH_STATE_LINKED; @@ -677,22 +728,13 @@ static int ehci_init(struct usb_hcd *hcd) static int ehci_run (struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); - int retval; u32 temp; u32 hcc_params; hcd->uses_new_polling = 1; /* EHCI spec section 4.1 */ - /* - * TDI driver does the ehci_reset in their reset callback. - * Don't reset here, because configuration settings will - * vanish. - */ - if (!ehci_is_TDI(ehci) && (retval = ehci_reset(ehci)) != 0) { - ehci_mem_cleanup(ehci); - return retval; - } + ehci_writel(ehci, ehci->periodic_dma, &ehci->regs->frame_list); ehci_writel(ehci, (u32)ehci->async->qh_dma, &ehci->regs->async_next); @@ -1324,7 +1366,7 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ehci_pxa168_driver #endif -#ifdef CONFIG_NLM_XLR +#ifdef CONFIG_CPU_XLR #include "ehci-xls.c" #define PLATFORM_DRIVER ehci_xls_driver #endif diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c index ba1f51361134..c0104882c72d 100644 --- a/drivers/usb/host/ehci-octeon.c +++ b/drivers/usb/host/ehci-octeon.c @@ -155,6 +155,8 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev) /* cache this readonly data; minimize chip reads */ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + ehci_reset(ehci); + ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) { dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret); diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index e39b0297bad1..e33baf9052cb 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -228,6 +228,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) /* cache this readonly data; minimize chip reads */ omap_ehci->hcs_params = readl(&omap_ehci->caps->hcs_params); + ehci_reset(omap_ehci); + ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) { dev_err(dev, "failed to add hcd with err %d\n", ret); diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 2dc32da75cfc..a20e496eb479 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -21,6 +21,34 @@ #include <asm/firmware.h> #include <asm/ps3.h> +static void ps3_ehci_setup_insnreg(struct ehci_hcd *ehci) +{ + /* PS3 HC internal setup register offsets. */ + + enum ps3_ehci_hc_insnreg { + ps3_ehci_hc_insnreg01 = 0x084, + ps3_ehci_hc_insnreg02 = 0x088, + ps3_ehci_hc_insnreg03 = 0x08c, + }; + + /* PS3 EHCI HC errata fix 316 - The PS3 EHCI HC will reset its + * internal INSNREGXX setup regs back to the chip default values + * on Host Controller Reset (CMD_RESET) or Light Host Controller + * Reset (CMD_LRESET). The work-around for this is for the HC + * driver to re-initialise these regs when ever the HC is reset. + */ + + /* Set burst transfer counts to 256 out, 32 in. */ + + writel_be(0x01000020, (void __iomem *)ehci->regs + + ps3_ehci_hc_insnreg01); + + /* Enable burst transfer counts. */ + + writel_be(0x00000001, (void __iomem *)ehci->regs + + ps3_ehci_hc_insnreg03); +} + static int ps3_ehci_hc_reset(struct usb_hcd *hcd) { int result; @@ -49,6 +77,8 @@ static int ps3_ehci_hc_reset(struct usb_hcd *hcd) ehci_reset(ehci); + ps3_ehci_setup_insnreg(ehci); + return result; } diff --git a/drivers/usb/host/ehci-pxa168.c b/drivers/usb/host/ehci-pxa168.c index ac0c16e8f539..8d0e7a22e711 100644 --- a/drivers/usb/host/ehci-pxa168.c +++ b/drivers/usb/host/ehci-pxa168.c @@ -299,7 +299,7 @@ static int __devinit ehci_pxa168_drv_probe(struct platform_device *pdev) ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs + 0x100; ehci->regs = hcd->regs + 0x100 + - HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); + HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); hcd->has_tt = 1; ehci->sbrn = 0x20; diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 4e4066c35a09..36ca5077cdf7 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -373,6 +373,17 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) retry_xacterr: if ((token & QTD_STS_ACTIVE) == 0) { + /* Report Data Buffer Error: non-fatal but useful */ + if (token & QTD_STS_DBE) + ehci_dbg(ehci, + "detected DataBufferErr for urb %p ep%d%s len %d, qtd %p [qh %p]\n", + urb, + usb_endpoint_num(&urb->ep->desc), + usb_endpoint_dir_in(&urb->ep->desc) ? "in" : "out", + urb->transfer_buffer_length, + qtd, + qh); + /* on STALL, error, and short reads this urb must * complete and all its qtds must be recycled. */ @@ -647,7 +658,7 @@ qh_urb_transaction ( /* * data transfer stage: buffer setup */ - i = urb->num_sgs; + i = urb->num_mapped_sgs; if (len > 0 && i > 0) { sg = urb->sg; buf = sg_dma_address(sg); diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 024b65c4990d..293f7412992e 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -14,8 +14,6 @@ #include <linux/clk.h> #include <linux/platform_device.h> -#include <mach/regs-pmu.h> -#include <plat/cpu.h> #include <plat/ehci.h> #include <plat/usb-phy.h> @@ -136,6 +134,8 @@ static int __devinit s5p_ehci_probe(struct platform_device *pdev) /* cache this readonly data; minimize chip reads */ ehci->hcs_params = readl(&ehci->caps->hcs_params); + ehci_reset(ehci); + err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) { dev_err(&pdev->dev, "Failed to add USB HCD\n"); diff --git a/drivers/usb/host/ehci-vt8500.c b/drivers/usb/host/ehci-vt8500.c index 54d1ab8aec49..c1eda73916cd 100644 --- a/drivers/usb/host/ehci-vt8500.c +++ b/drivers/usb/host/ehci-vt8500.c @@ -132,6 +132,8 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev) ehci_port_power(ehci, 1); + ehci_reset(ehci); + ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED); if (ret == 0) { diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c index d661cf7de140..3d2e26cbb34c 100644 --- a/drivers/usb/host/ehci-w90x900.c +++ b/drivers/usb/host/ehci-w90x900.c @@ -78,6 +78,8 @@ static int __devinit usb_w90x900_probe(const struct hc_driver *driver, if (irq < 0) goto err4; + ehci_reset(ehci); + retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval != 0) goto err4; diff --git a/drivers/usb/host/ehci-xls.c b/drivers/usb/host/ehci-xls.c index b4fb511d24bc..72f08196f8cd 100644 --- a/drivers/usb/host/ehci-xls.c +++ b/drivers/usb/host/ehci-xls.c @@ -69,7 +69,7 @@ int ehci_xls_probe_internal(const struct hc_driver *driver, } hcd->rsrc_start = res->start; - hcd->rsrc_len = res->end - res->start + 1; + hcd->rsrc_len = resource_size(res); if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, driver->description)) { diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c index 4ed6d19f2a54..d2623747b489 100644 --- a/drivers/usb/host/fhci-hcd.c +++ b/drivers/usb/host/fhci-hcd.c @@ -824,17 +824,7 @@ static struct platform_driver of_fhci_driver = { .remove = __devexit_p(of_fhci_remove), }; -static int __init fhci_module_init(void) -{ - return platform_driver_register(&of_fhci_driver); -} -module_init(fhci_module_init); - -static void __exit fhci_module_exit(void) -{ - platform_driver_unregister(&of_fhci_driver); -} -module_exit(fhci_module_exit); +module_platform_driver(of_fhci_driver); MODULE_DESCRIPTION("USB Freescale Host Controller Interface Driver"); MODULE_AUTHOR("Shlomi Gridish <gridish@freescale.com>, " diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 9037035ad1e4..7916e56a725e 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -297,17 +297,7 @@ static struct platform_driver fsl_usb2_mph_dr_driver = { .remove = __devexit_p(fsl_usb2_mph_dr_of_remove), }; -static int __init fsl_usb2_mph_dr_init(void) -{ - return platform_driver_register(&fsl_usb2_mph_dr_driver); -} -module_init(fsl_usb2_mph_dr_init); - -static void __exit fsl_usb2_mph_dr_exit(void) -{ - platform_driver_unregister(&fsl_usb2_mph_dr_driver); -} -module_exit(fsl_usb2_mph_dr_exit); +module_platform_driver(fsl_usb2_mph_dr_driver); MODULE_DESCRIPTION("FSL MPH DR OF devices driver"); MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>"); diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c index 9bfac657572e..565d79f06e6f 100644 --- a/drivers/usb/host/hwa-hc.c +++ b/drivers/usb/host/hwa-hc.c @@ -776,7 +776,6 @@ static int hwahc_probe(struct usb_interface *usb_iface, goto error_alloc; } usb_hcd->wireless = 1; - set_bit(HCD_FLAG_SAW_IRQ, &usb_hcd->flags); wusbhc = usb_hcd_to_wusbhc(usb_hcd); hwahc = container_of(wusbhc, struct hwahc, wusbhc); hwahc_init(hwahc); diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c index 2ee18cfa1efe..6923bcb8aa68 100644 --- a/drivers/usb/host/imx21-hcd.c +++ b/drivers/usb/host/imx21-hcd.c @@ -1924,18 +1924,7 @@ static struct platform_driver imx21_hcd_driver = { .resume = NULL, }; -static int __init imx21_hcd_init(void) -{ - return platform_driver_register(&imx21_hcd_driver); -} - -static void __exit imx21_hcd_cleanup(void) -{ - platform_driver_unregister(&imx21_hcd_driver); -} - -module_init(imx21_hcd_init); -module_exit(imx21_hcd_cleanup); +module_platform_driver(imx21_hcd_driver); MODULE_DESCRIPTION("i.MX21 USB Host controller"); MODULE_AUTHOR("Martin Fuzzey"); diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c index 27dfab80ed8f..fc72d44bf787 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -32,6 +32,13 @@ static struct kmem_cache *qtd_cachep; static struct kmem_cache *qh_cachep; static struct kmem_cache *urb_listitem_cachep; +enum queue_head_types { + QH_CONTROL, + QH_BULK, + QH_INTERRUPT, + QH_END +}; + struct isp1760_hcd { u32 hcs_params; spinlock_t lock; @@ -40,7 +47,7 @@ struct isp1760_hcd { struct slotinfo int_slots[32]; int int_done_map; struct memory_chunk memory_pool[BLOCKS]; - struct list_head controlqhs, bulkqhs, interruptqhs; + struct list_head qh_list[QH_END]; /* periodic schedule support */ #define DEFAULT_I_TDPS 1024 @@ -406,12 +413,12 @@ static int priv_init(struct usb_hcd *hcd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); u32 hcc_params; + int i; spin_lock_init(&priv->lock); - INIT_LIST_HEAD(&priv->interruptqhs); - INIT_LIST_HEAD(&priv->controlqhs); - INIT_LIST_HEAD(&priv->bulkqhs); + for (i = 0; i < QH_END; i++) + INIT_LIST_HEAD(&priv->qh_list[i]); /* * hw default: 1K periodic list heads, one per frame. @@ -930,9 +937,9 @@ void schedule_ptds(struct usb_hcd *hcd) struct isp1760_hcd *priv; struct isp1760_qh *qh, *qh_next; struct list_head *ep_queue; - struct usb_host_endpoint *ep; LIST_HEAD(urb_list); struct urb_listitem *urb_listitem, *urb_listitem_next; + int i; if (!hcd) { WARN_ON(1); @@ -944,28 +951,13 @@ void schedule_ptds(struct usb_hcd *hcd) /* * check finished/retired xfers, transfer payloads, call urb_done() */ - ep_queue = &priv->interruptqhs; - while (ep_queue) { + for (i = 0; i < QH_END; i++) { + ep_queue = &priv->qh_list[i]; list_for_each_entry_safe(qh, qh_next, ep_queue, qh_list) { - ep = list_entry(qh->qtd_list.next, struct isp1760_qtd, - qtd_list)->urb->ep; collect_qtds(hcd, qh, &urb_list); - if (list_empty(&qh->qtd_list)) { + if (list_empty(&qh->qtd_list)) list_del(&qh->qh_list); - if (ep->hcpriv == NULL) { - /* Endpoint has been disabled, so we - can free the associated queue head. */ - qh_free(qh); - } - } } - - if (ep_queue == &priv->interruptqhs) - ep_queue = &priv->controlqhs; - else if (ep_queue == &priv->controlqhs) - ep_queue = &priv->bulkqhs; - else - ep_queue = NULL; } list_for_each_entry_safe(urb_listitem, urb_listitem_next, &urb_list, @@ -998,17 +990,10 @@ void schedule_ptds(struct usb_hcd *hcd) * * I'm sure this scheme could be improved upon! */ - ep_queue = &priv->controlqhs; - while (ep_queue) { + for (i = 0; i < QH_END; i++) { + ep_queue = &priv->qh_list[i]; list_for_each_entry_safe(qh, qh_next, ep_queue, qh_list) enqueue_qtds(hcd, qh); - - if (ep_queue == &priv->controlqhs) - ep_queue = &priv->interruptqhs; - else if (ep_queue == &priv->interruptqhs) - ep_queue = &priv->bulkqhs; - else - ep_queue = NULL; } } @@ -1543,16 +1528,16 @@ static int isp1760_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, switch (usb_pipetype(urb->pipe)) { case PIPE_CONTROL: - ep_queue = &priv->controlqhs; + ep_queue = &priv->qh_list[QH_CONTROL]; break; case PIPE_BULK: - ep_queue = &priv->bulkqhs; + ep_queue = &priv->qh_list[QH_BULK]; break; case PIPE_INTERRUPT: if (urb->interval < 0) return -EINVAL; /* FIXME: Check bandwidth */ - ep_queue = &priv->interruptqhs; + ep_queue = &priv->qh_list[QH_INTERRUPT]; break; case PIPE_ISOCHRONOUS: dev_err(hcd->self.controller, "%s: isochronous USB packets " @@ -1714,8 +1699,8 @@ static void isp1760_endpoint_disable(struct usb_hcd *hcd, { struct isp1760_hcd *priv = hcd_to_priv(hcd); unsigned long spinflags; - struct isp1760_qh *qh; - struct isp1760_qtd *qtd; + struct isp1760_qh *qh, *qh_iter; + int i; spin_lock_irqsave(&priv->lock, spinflags); @@ -1723,14 +1708,17 @@ static void isp1760_endpoint_disable(struct usb_hcd *hcd, if (!qh) goto out; - list_for_each_entry(qtd, &qh->qtd_list, qtd_list) - if (qtd->status != QTD_RETIRE) { - dequeue_urb_from_qtd(hcd, qh, qtd); - qtd->urb->status = -ECONNRESET; - } + WARN_ON(!list_empty(&qh->qtd_list)); + for (i = 0; i < QH_END; i++) + list_for_each_entry(qh_iter, &priv->qh_list[i], qh_list) + if (qh_iter == qh) { + list_del(&qh_iter->qh_list); + i = QH_END; + break; + } + qh_free(qh); ep->hcpriv = NULL; - /* Cannot free qh here since it will be parsed by schedule_ptds() */ schedule_ptds(hcd); diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index a7dc1e1d45f2..b605224fb9e3 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -47,9 +47,9 @@ static int of_isp1760_probe(struct platform_device *dev) int virq; resource_size_t res_len; int ret; - const unsigned int *prop; unsigned int devflags = 0; enum of_gpio_flags gpio_flags; + u32 bus_width = 0; drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL); if (!drvdata) @@ -77,8 +77,8 @@ static int of_isp1760_probe(struct platform_device *dev) devflags |= ISP1760_FLAG_ISP1761; /* Some systems wire up only 16 of the 32 data lines */ - prop = of_get_property(dp, "bus-width", NULL); - if (prop && *prop == 16) + of_property_read_u32(dp, "bus-width", &bus_width); + if (bus_width == 16) devflags |= ISP1760_FLAG_BUS_WIDTH_16; if (of_get_property(dp, "port1-otg", NULL) != NULL) diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c index 9b66df8278f3..40d886adff53 100644 --- a/drivers/usb/host/ohci-au1xxx.c +++ b/drivers/usb/host/ohci-au1xxx.c @@ -173,12 +173,9 @@ static int ohci_hcd_au1xxx_drv_suspend(struct device *dev) * mark HW unaccessible, bail out if RH has been resumed. Use * the spinlock to properly synchronize with possible pending * RH suspend or resume activity. - * - * This is still racy as hcd->state is manipulated outside of - * any locks =P But that will be a different fix. */ spin_lock_irqsave(&ohci->lock, flags); - if (hcd->state != HC_STATE_SUSPENDED) { + if (ohci->rh_state != OHCI_RH_SUSPENDED) { rc = -EINVAL; goto bail; } diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index d7d34492934a..5179fcd73d8a 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -127,6 +127,19 @@ static char *hcfs2string (int state) return "?"; } +static const char *rh_state_string(struct ohci_hcd *ohci) +{ + switch (ohci->rh_state) { + case OHCI_RH_HALTED: + return "halted"; + case OHCI_RH_SUSPENDED: + return "suspended"; + case OHCI_RH_RUNNING: + return "running"; + } + return "?"; +} + // dump control and status registers static void ohci_dump_status (struct ohci_hcd *controller, char **next, unsigned *size) @@ -136,9 +149,10 @@ ohci_dump_status (struct ohci_hcd *controller, char **next, unsigned *size) temp = ohci_readl (controller, ®s->revision) & 0xff; ohci_dbg_sw (controller, next, size, - "OHCI %d.%d, %s legacy support registers\n", + "OHCI %d.%d, %s legacy support registers, rh state %s\n", 0x03 & (temp >> 4), (temp & 0x0f), - (temp & 0x0100) ? "with" : "NO"); + (temp & 0x0100) ? "with" : "NO", + rh_state_string(controller)); temp = ohci_readl (controller, ®s->control); ohci_dbg_sw (controller, next, size, diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index dc45d489d00e..3d63574d2c7e 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -179,8 +179,6 @@ static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_ ohci->next_statechange = jiffies; ep93xx_stop_hc(&pdev->dev); - hcd->state = HC_STATE_SUSPENDED; - return 0; } diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index b2639191549e..4fa5d8c4d239 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -209,7 +209,7 @@ static int ohci_urb_enqueue ( retval = -ENODEV; goto fail; } - if (!HC_IS_RUNNING(hcd->state)) { + if (ohci->rh_state != OHCI_RH_RUNNING) { retval = -ENODEV; goto fail; } @@ -274,7 +274,7 @@ static int ohci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) rc = usb_hcd_check_unlink_urb(hcd, urb, status); if (rc) { ; /* Do nothing */ - } else if (HC_IS_RUNNING(hcd->state)) { + } else if (ohci->rh_state == OHCI_RH_RUNNING) { urb_priv_t *urb_priv; /* Unless an IRQ completed the unlink while it was being @@ -321,7 +321,7 @@ ohci_endpoint_disable (struct usb_hcd *hcd, struct usb_host_endpoint *ep) rescan: spin_lock_irqsave (&ohci->lock, flags); - if (!HC_IS_RUNNING (hcd->state)) { + if (ohci->rh_state != OHCI_RH_RUNNING) { sanitize: ed->state = ED_IDLE; if (quirk_zfmicro(ohci) && ed->type == PIPE_INTERRUPT) @@ -377,6 +377,7 @@ static void ohci_usb_reset (struct ohci_hcd *ohci) ohci->hc_control = ohci_readl (ohci, &ohci->regs->control); ohci->hc_control &= OHCI_CTRL_RWC; ohci_writel (ohci, ohci->hc_control, &ohci->regs->control); + ohci->rh_state = OHCI_RH_HALTED; } /* ohci_shutdown forcibly disables IRQs and DMA, helping kexec and @@ -500,7 +501,7 @@ static int ohci_init (struct ohci_hcd *ohci) if (distrust_firmware) ohci->flags |= OHCI_QUIRK_HUB_POWER; - disable (ohci); + ohci->rh_state = OHCI_RH_HALTED; ohci->regs = hcd->regs; /* REVISIT this BIOS handshake is now moved into PCI "quirks", and @@ -575,7 +576,7 @@ static int ohci_run (struct ohci_hcd *ohci) int first = ohci->fminterval == 0; struct usb_hcd *hcd = ohci_to_hcd(ohci); - disable (ohci); + ohci->rh_state = OHCI_RH_HALTED; /* boot firmware should have set this up (5.1.1.3.1) */ if (first) { @@ -688,7 +689,7 @@ retry: ohci->hc_control &= OHCI_CTRL_RWC; ohci->hc_control |= OHCI_CONTROL_INIT | OHCI_USB_OPER; ohci_writel (ohci, ohci->hc_control, &ohci->regs->control); - hcd->state = HC_STATE_RUNNING; + ohci->rh_state = OHCI_RH_RUNNING; /* wake on ConnectStatusChange, matching external hubs */ ohci_writel (ohci, RH_HS_DRWE, &ohci->regs->roothub.status); @@ -725,7 +726,6 @@ retry: // POTPGT delay is bits 24-31, in 2 ms units. mdelay ((val >> 23) & 0x1fe); - hcd->state = HC_STATE_RUNNING; if (quirk_zfmicro(ohci)) { /* Create timer to watch for bad queue state on ZF Micro */ @@ -761,7 +761,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) * of dead, unclocked, or unplugged (CardBus...) devices */ if (ints == ~(u32)0) { - disable (ohci); + ohci->rh_state = OHCI_RH_HALTED; ohci_dbg (ohci, "device removed!\n"); usb_hc_died(hcd); return IRQ_HANDLED; @@ -771,7 +771,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) ints &= ohci_readl(ohci, ®s->intrenable); /* interrupt for some other device? */ - if (ints == 0 || unlikely(hcd->state == HC_STATE_HALT)) + if (ints == 0 || unlikely(ohci->rh_state == OHCI_RH_HALTED)) return IRQ_NOTMINE; if (ints & OHCI_INTR_UE) { @@ -786,8 +786,8 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) schedule_work (&ohci->nec_work); } else { - disable (ohci); ohci_err (ohci, "OHCI Unrecoverable Error, disabled\n"); + ohci->rh_state = OHCI_RH_HALTED; usb_hc_died(hcd); } @@ -871,11 +871,11 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) if ((ints & OHCI_INTR_SF) != 0 && !ohci->ed_rm_list && !ohci->ed_to_check - && HC_IS_RUNNING(hcd->state)) + && ohci->rh_state == OHCI_RH_RUNNING) ohci_writel (ohci, OHCI_INTR_SF, ®s->intrdisable); spin_unlock (&ohci->lock); - if (HC_IS_RUNNING(hcd->state)) { + if (ohci->rh_state == OHCI_RH_RUNNING) { ohci_writel (ohci, ints, ®s->intrstatus); ohci_writel (ohci, OHCI_INTR_MIE, ®s->intrenable); // flush those writes @@ -929,7 +929,7 @@ static int ohci_restart (struct ohci_hcd *ohci) struct urb_priv *priv; spin_lock_irq(&ohci->lock); - disable (ohci); + ohci->rh_state = OHCI_RH_HALTED; /* Recycle any "live" eds/tds (and urbs). */ if (!list_empty (&ohci->pending)) @@ -1111,7 +1111,7 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ohci_hcd_ath79_driver #endif -#ifdef CONFIG_NLM_XLR +#ifdef CONFIG_CPU_XLR #include "ohci-xls.c" #define PLATFORM_DRIVER ohci_xls_driver #endif diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 2f00040fc408..836772dfabd3 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -111,6 +111,7 @@ __acquires(ohci->lock) if (!autostop) { ohci->next_statechange = jiffies + msecs_to_jiffies (5); ohci->autostop = 0; + ohci->rh_state = OHCI_RH_SUSPENDED; } done: @@ -140,7 +141,7 @@ __acquires(ohci->lock) if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) { /* this can happen after resuming a swsusp snapshot */ - if (hcd->state == HC_STATE_RESUMING) { + if (ohci->rh_state != OHCI_RH_RUNNING) { ohci_dbg (ohci, "BIOS/SMM active, control %03x\n", ohci->hc_control); status = -EBUSY; @@ -274,6 +275,7 @@ skip_resume: (void) ohci_readl (ohci, &ohci->regs->control); } + ohci->rh_state = OHCI_RH_RUNNING; return 0; } @@ -336,11 +338,8 @@ static void ohci_finish_controller_resume(struct usb_hcd *hcd) /* If needed, reinitialize and suspend the root hub */ if (need_reinit) { spin_lock_irq(&ohci->lock); - hcd->state = HC_STATE_RESUMING; ohci_rh_resume(ohci); - hcd->state = HC_STATE_QUIESCING; ohci_rh_suspend(ohci, 0); - hcd->state = HC_STATE_SUSPENDED; spin_unlock_irq(&ohci->lock); } diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index e4b8782cc6e2..db3968656d21 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -516,7 +516,6 @@ static int ohci_omap_suspend(struct platform_device *dev, pm_message_t message) ohci->next_statechange = jiffies; omap_ohci_clock_power(0); - ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED; return 0; } diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index bc01b064585a..6109810cc2d3 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -308,12 +308,9 @@ static int ohci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) * mark HW unaccessible, bail out if RH has been resumed. Use * the spinlock to properly synchronize with possible pending * RH suspend or resume activity. - * - * This is still racy as hcd->state is manipulated outside of - * any locks =P But that will be a different fix. */ spin_lock_irqsave (&ohci->lock, flags); - if (hcd->state != HC_STATE_SUSPENDED) { + if (ohci->rh_state != OHCI_RH_SUSPENDED) { rc = -EINVAL; goto bail; } diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 29dfefe1c726..6313e4439f37 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -502,8 +502,6 @@ static int ohci_hcd_pxa27x_drv_suspend(struct device *dev) ohci->ohci.next_statechange = jiffies; pxa27x_stop_hc(ohci, dev); - hcd->state = HC_STATE_SUSPENDED; - return 0; } diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index 15dc51ded61a..c5a1ea9145fa 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -912,7 +912,7 @@ rescan_all: /* only take off EDs that the HC isn't using, accounting for * frame counter wraps and EDs with partially retired TDs */ - if (likely (HC_IS_RUNNING(ohci_to_hcd(ohci)->state))) { + if (likely(ohci->rh_state == OHCI_RH_RUNNING)) { if (tick_before (tick, ed->tick)) { skip_ed: last = &ed->ed_next; @@ -1012,7 +1012,7 @@ rescan_this: /* but if there's work queued, reschedule */ if (!list_empty (&ed->td_list)) { - if (HC_IS_RUNNING(ohci_to_hcd(ohci)->state)) + if (ohci->rh_state == OHCI_RH_RUNNING) ed_schedule (ohci, ed); } @@ -1021,9 +1021,7 @@ rescan_this: } /* maybe reenable control and bulk lists */ - if (HC_IS_RUNNING(ohci_to_hcd(ohci)->state) - && ohci_to_hcd(ohci)->state != HC_STATE_QUIESCING - && !ohci->ed_rm_list) { + if (ohci->rh_state == OHCI_RH_RUNNING && !ohci->ed_rm_list) { u32 command = 0, control = 0; if (ohci->ed_controltail) { diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index a1877c47601e..56dcf069246d 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -486,15 +486,66 @@ static int __devexit ohci_hcd_s3c2410_drv_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int ohci_hcd_s3c2410_drv_suspend(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct platform_device *pdev = to_platform_device(dev); + unsigned long flags; + int rc = 0; + + /* + * Root hub was already suspended. Disable irq emission and + * mark HW unaccessible, bail out if RH has been resumed. Use + * the spinlock to properly synchronize with possible pending + * RH suspend or resume activity. + */ + spin_lock_irqsave(&ohci->lock, flags); + if (ohci->rh_state != OHCI_RH_SUSPENDED) { + rc = -EINVAL; + goto bail; + } + + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + + s3c2410_stop_hc(pdev); +bail: + spin_unlock_irqrestore(&ohci->lock, flags); + + return rc; +} + +static int ohci_hcd_s3c2410_drv_resume(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct platform_device *pdev = to_platform_device(dev); + + s3c2410_start_hc(pdev, hcd); + + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + ohci_finish_controller_resume(hcd); + + return 0; +} +#else +#define ohci_hcd_s3c2410_drv_suspend NULL +#define ohci_hcd_s3c2410_drv_resume NULL +#endif + +static const struct dev_pm_ops ohci_hcd_s3c2410_pm_ops = { + .suspend = ohci_hcd_s3c2410_drv_suspend, + .resume = ohci_hcd_s3c2410_drv_resume, +}; + static struct platform_driver ohci_hcd_s3c2410_driver = { .probe = ohci_hcd_s3c2410_drv_probe, .remove = __devexit_p(ohci_hcd_s3c2410_drv_remove), .shutdown = usb_hcd_platform_shutdown, - /*.suspend = ohci_hcd_s3c2410_drv_suspend, */ - /*.resume = ohci_hcd_s3c2410_drv_resume, */ .driver = { .owner = THIS_MODULE, .name = "s3c2410-ohci", + .pm = &ohci_hcd_s3c2410_pm_ops, }, }; diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c index afc4eb6bb9d0..84686d90805b 100644 --- a/drivers/usb/host/ohci-sh.c +++ b/drivers/usb/host/ohci-sh.c @@ -29,7 +29,6 @@ static int ohci_sh_start(struct usb_hcd *hcd) ohci_hcd_init(ohci); ohci_init(ohci); ohci_run(ohci); - hcd->state = HC_STATE_RUNNING; return 0; } diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c index 968cea2b6d4e..5596ac2ba1ca 100644 --- a/drivers/usb/host/ohci-sm501.c +++ b/drivers/usb/host/ohci-sm501.c @@ -224,7 +224,6 @@ static int ohci_sm501_suspend(struct platform_device *pdev, pm_message_t msg) ohci->next_statechange = jiffies; sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 0); - ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED; return 0; } diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c index 69874654f3b5..95c16489e883 100644 --- a/drivers/usb/host/ohci-spear.c +++ b/drivers/usb/host/ohci-spear.c @@ -203,7 +203,6 @@ static int spear_ohci_hcd_drv_suspend(struct platform_device *dev, ohci->next_statechange = jiffies; spear_stop_ohci(ohci_p); - ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED; return 0; } diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c index 06331d931171..120bfe6ede38 100644 --- a/drivers/usb/host/ohci-tmio.c +++ b/drivers/usb/host/ohci-tmio.c @@ -318,9 +318,6 @@ static int ohci_hcd_tmio_drv_suspend(struct platform_device *dev, pm_message_t s if (ret) return ret; } - - hcd->state = HC_STATE_SUSPENDED; - return 0; } diff --git a/drivers/usb/host/ohci-xls.c b/drivers/usb/host/ohci-xls.c index a3a9c6f45b91..a2247867af86 100644 --- a/drivers/usb/host/ohci-xls.c +++ b/drivers/usb/host/ohci-xls.c @@ -40,7 +40,7 @@ static int ohci_xls_probe_internal(const struct hc_driver *driver, goto err1; } hcd->rsrc_start = res->start; - hcd->rsrc_len = res->end - res->start + 1; + hcd->rsrc_len = resource_size(res); if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, driver->description)) { diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index 0795b934d00c..8ff6f7ea96fd 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -344,6 +344,12 @@ typedef struct urb_priv { * a subset of what the full implementation needs. (Linus) */ +enum ohci_rh_state { + OHCI_RH_HALTED, + OHCI_RH_SUSPENDED, + OHCI_RH_RUNNING +}; + struct ohci_hcd { spinlock_t lock; @@ -384,6 +390,7 @@ struct ohci_hcd { /* * driver state */ + enum ohci_rh_state rh_state; int num_ports; int load [NUM_INTS]; u32 hc_control; /* copy of hc control reg */ @@ -679,11 +686,6 @@ static inline u16 ohci_hwPSW(const struct ohci_hcd *ohci, /*-------------------------------------------------------------------------*/ -static inline void disable (struct ohci_hcd *ohci) -{ - ohci_to_hcd(ohci)->state = HC_STATE_HALT; -} - #define FI 0x2edf /* 12000 bits per frame (-1) */ #define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7)) #define FIT (1 << 31) @@ -707,7 +709,7 @@ static inline void periodic_reinit (struct ohci_hcd *ohci) #define read_roothub(hc, register, mask) ({ \ u32 temp = ohci_readl (hc, &hc->regs->roothub.register); \ if (temp == -1) \ - disable (hc); \ + hc->rh_state = OHCI_RH_HALTED; \ else if (hc->flags & OHCI_QUIRK_AMD756) \ while (temp & mask) \ temp = ohci_readl (hc, &hc->regs->roothub.register); \ diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index dcd889803f0f..6f62de5c6e35 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -3951,24 +3951,7 @@ static struct platform_driver oxu_driver = { } }; -static int __init oxu_module_init(void) -{ - int retval = 0; - - retval = platform_driver_register(&oxu_driver); - if (retval < 0) - return retval; - - return retval; -} - -static void __exit oxu_module_cleanup(void) -{ - platform_driver_unregister(&oxu_driver); -} - -module_init(oxu_module_init); -module_exit(oxu_module_cleanup); +module_platform_driver(oxu_driver); MODULE_DESCRIPTION("Oxford OXU210HP HCD driver - ver. " DRIVER_VERSION); MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>"); diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index f6ca80ee4cec..d2c6f5ac4626 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -943,7 +943,7 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, if (usb_pipein(urb->pipe)) status |= TD_CTRL_SPD; - i = urb->num_sgs; + i = urb->num_mapped_sgs; if (len > 0 && i > 0) { sg = urb->sg; data = sg_dma_address(sg); diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c index a403b53e86b9..76083ae92138 100644 --- a/drivers/usb/host/whci/qset.c +++ b/drivers/usb/host/whci/qset.c @@ -443,7 +443,7 @@ static int qset_add_urb_sg(struct whc *whc, struct whc_qset *qset, struct urb *u remaining = urb->transfer_buffer_length; - for_each_sg(urb->sg, sg, urb->num_sgs, i) { + for_each_sg(urb->sg, sg, urb->num_mapped_sgs, i) { dma_addr_t dma_addr; size_t dma_remaining; dma_addr_t sp, ep; @@ -561,7 +561,7 @@ static int qset_add_urb_sg_linearize(struct whc *whc, struct whc_qset *qset, remaining = urb->transfer_buffer_length; - for_each_sg(urb->sg, sg, urb->num_sgs, i) { + for_each_sg(urb->sg, sg, urb->num_mapped_sgs, i) { size_t len; size_t sg_remaining; void *orig; diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 430e88fd3f6c..35e257f79c7b 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -57,17 +57,15 @@ static void xhci_common_hub_descriptor(struct xhci_hcd *xhci, desc->bHubContrCurrent = 0; desc->bNbrPorts = ports; - /* Ugh, these should be #defines, FIXME */ - /* Using table 11-13 in USB 2.0 spec. */ temp = 0; - /* Bits 1:0 - support port power switching, or power always on */ + /* Bits 1:0 - support per-port power switching, or power always on */ if (HCC_PPC(xhci->hcc_params)) - temp |= 0x0001; + temp |= HUB_CHAR_INDV_PORT_LPSM; else - temp |= 0x0002; + temp |= HUB_CHAR_NO_LPSM; /* Bit 2 - root hubs are not part of a compound device */ /* Bits 4:3 - individual port over current protection */ - temp |= 0x0008; + temp |= HUB_CHAR_INDV_PORT_OCPM; /* Bits 6:5 - no TTs in root ports */ /* Bit 7 - no port indicators */ desc->wHubCharacteristics = cpu_to_le16(temp); @@ -86,9 +84,9 @@ static void xhci_usb2_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, ports = xhci->num_usb2_ports; xhci_common_hub_descriptor(xhci, desc, ports); - desc->bDescriptorType = 0x29; + desc->bDescriptorType = USB_DT_HUB; temp = 1 + (ports / 8); - desc->bDescLength = 7 + 2 * temp; + desc->bDescLength = USB_DT_HUB_NONVAR_SIZE + 2 * temp; /* The Device Removable bits are reported on a byte granularity. * If the port doesn't exist within that byte, the bit is set to 0. @@ -137,8 +135,8 @@ static void xhci_usb3_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci, ports = xhci->num_usb3_ports; xhci_common_hub_descriptor(xhci, desc, ports); - desc->bDescriptorType = 0x2a; - desc->bDescLength = 12; + desc->bDescriptorType = USB_DT_SS_HUB; + desc->bDescLength = USB_DT_SS_HUB_SIZE; /* header decode latency should be zero for roothubs, * see section 4.23.5.2. diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 9f1d4b15d818..d030f0b2bfa2 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2390,17 +2390,7 @@ hw_died: irqreturn_t xhci_msi_irq(int irq, struct usb_hcd *hcd) { - irqreturn_t ret; - struct xhci_hcd *xhci; - - xhci = hcd_to_xhci(hcd); - set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); - if (xhci->shared_hcd) - set_bit(HCD_FLAG_SAW_IRQ, &xhci->shared_hcd->flags); - - ret = xhci_irq(hcd); - - return ret; + return xhci_irq(hcd); } /**** Endpoint Ring Operations ****/ @@ -2561,7 +2551,7 @@ static unsigned int count_sg_trbs_needed(struct xhci_hcd *xhci, struct urb *urb) struct scatterlist *sg; sg = NULL; - num_sgs = urb->num_sgs; + num_sgs = urb->num_mapped_sgs; temp = urb->transfer_buffer_length; xhci_dbg(xhci, "count sg list trbs: \n"); @@ -2745,7 +2735,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags, return -EINVAL; num_trbs = count_sg_trbs_needed(xhci, urb); - num_sgs = urb->num_sgs; + num_sgs = urb->num_mapped_sgs; total_packet_count = roundup(urb->transfer_buffer_length, usb_endpoint_maxp(&urb->ep->desc)); diff --git a/drivers/usb/misc/isight_firmware.c b/drivers/usb/misc/isight_firmware.c index fe1d44319d0a..8f725f651915 100644 --- a/drivers/usb/misc/isight_firmware.c +++ b/drivers/usb/misc/isight_firmware.c @@ -55,8 +55,9 @@ static int isight_firmware_load(struct usb_interface *intf, ptr = firmware->data; + buf[0] = 0x01; if (usb_control_msg - (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, "\1", 1, + (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, buf, 1, 300) != 1) { printk(KERN_ERR "Failed to initialise isight firmware loader\n"); @@ -100,8 +101,9 @@ static int isight_firmware_load(struct usb_interface *intf, } } + buf[0] = 0x00; if (usb_control_msg - (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, "\0", 1, + (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, buf, 1, 300) != 1) { printk(KERN_ERR "isight firmware loading completion failed\n"); ret = -ENODEV; diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index bd6d00802eab..959145baf3cf 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -1765,7 +1765,6 @@ static int test_unaligned_bulk( * off just killing the userspace task and waiting for it to exit. */ -/* No BKL needed */ static int usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) { diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index b63ab1570103..227c1dfa6bee 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -661,7 +661,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, handled = IRQ_HANDLED; musb->is_active = 1; - set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); musb->ep0_stage = MUSB_EP0_START; diff --git a/drivers/usb/otg/fsl_otg.c b/drivers/usb/otg/fsl_otg.c index 0f420b25e9a9..2a52ff1b493d 100644 --- a/drivers/usb/otg/fsl_otg.c +++ b/drivers/usb/otg/fsl_otg.c @@ -1151,18 +1151,7 @@ struct platform_driver fsl_otg_driver = { }, }; -static int __init fsl_usb_otg_init(void) -{ - pr_info(DRIVER_INFO "\n"); - return platform_driver_register(&fsl_otg_driver); -} -module_init(fsl_usb_otg_init); - -static void __exit fsl_usb_otg_exit(void) -{ - platform_driver_unregister(&fsl_otg_driver); -} -module_exit(fsl_usb_otg_exit); +module_platform_driver(fsl_otg_driver); MODULE_DESCRIPTION(DRIVER_INFO); MODULE_AUTHOR(DRIVER_AUTHOR); diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index 08c679c0dde5..aa94e33e6885 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -637,18 +637,7 @@ static struct platform_driver renesas_usbhs_driver = { .remove = __devexit_p(usbhs_remove), }; -static int __init usbhs_init(void) -{ - return platform_driver_register(&renesas_usbhs_driver); -} - -static void __exit usbhs_exit(void) -{ - platform_driver_unregister(&renesas_usbhs_driver); -} - -module_init(usbhs_init); -module_exit(usbhs_exit); +module_platform_driver(renesas_usbhs_driver); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Renesas USB driver"); diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c index bade761a1e52..75659e0c735d 100644 --- a/drivers/usb/renesas_usbhs/mod_host.c +++ b/drivers/usb/renesas_usbhs/mod_host.c @@ -1268,7 +1268,7 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv) return -ENOMEM; } - pipe_info = kzalloc(sizeof(*pipe_info) * pipe_size, GFP_KERNEL); + pipe_info = kcalloc(pipe_size, sizeof(*pipe_info), GFP_KERNEL); if (!pipe_info) { dev_err(dev, "Could not allocate pipe_info\n"); goto usbhs_mod_host_probe_err; diff --git a/drivers/usb/serial/ChangeLog.history b/drivers/usb/serial/ChangeLog.history deleted file mode 100644 index f13fd488ebec..000000000000 --- a/drivers/usb/serial/ChangeLog.history +++ /dev/null @@ -1,730 +0,0 @@ -This is the contents of some of the drivers/usb/serial/ files that had old -changelog comments. They were quite old, and out of date, and we don't keep -them anymore, so I've put them here, away from the source files, in case -people still care to see them. - -- Greg Kroah-Hartman <greg@kroah.com> October 20, 2005 - ------------------------------------------------------------------------ -usb-serial.h Change Log comments: - - (03/26/2002) gkh - removed the port->tty check from port_paranoia_check() due to serial - consoles not having a tty device assigned to them. - - (12/03/2001) gkh - removed active from the port structure. - added documentation to the usb_serial_device_type structure - - (10/10/2001) gkh - added vendor and product to serial structure. Needed to determine device - owner when the device is disconnected. - - (05/30/2001) gkh - added sem to port structure and removed port_lock - - (10/05/2000) gkh - Added interrupt_in_endpointAddress and bulk_in_endpointAddress to help - fix bug with urb->dev not being set properly, now that the usb core - needs it. - - (09/11/2000) gkh - Added usb_serial_debug_data function to help get rid of #DEBUG in the - drivers. - - (08/28/2000) gkh - Added port_lock to port structure. - - (08/08/2000) gkh - Added open_count to port structure. - - (07/23/2000) gkh - Added bulk_out_endpointAddress to port structure. - - (07/19/2000) gkh, pberger, and borchers - Modifications to allow usb-serial drivers to be modules. - ------------------------------------------------------------------------ -usb-serial.c Change Log comments: - - (12/10/2002) gkh - Split the ports off into their own struct device, and added a - usb-serial bus driver. - - (11/19/2002) gkh - removed a few #ifdefs for the generic code and cleaned up the failure - logic in initialization. - - (10/02/2002) gkh - moved the console code to console.c and out of this file. - - (06/05/2002) gkh - moved location of startup() call in serial_probe() until after all - of the port information and endpoints are initialized. This makes - things easier for some drivers. - - (04/10/2002) gkh - added serial_read_proc function which creates a - /proc/tty/driver/usb-serial file. - - (03/27/2002) gkh - Got USB serial console code working properly and merged into the main - version of the tree. Thanks to Randy Dunlap for the initial version - of this code, and for pushing me to finish it up. - The USB serial console works with any usb serial driver device. - - (03/21/2002) gkh - Moved all manipulation of port->open_count into the core. Now the - individual driver's open and close functions are called only when the - first open() and last close() is called. Making the drivers a bit - smaller and simpler. - Fixed a bug if a driver didn't have the owner field set. - - (02/26/2002) gkh - Moved all locking into the main serial_* functions, instead of having - the individual drivers have to grab the port semaphore. This should - reduce races. - Reworked the MOD_INC logic a bit to always increment and decrement, even - if the generic driver is being used. - - (10/10/2001) gkh - usb_serial_disconnect() now sets the serial->dev pointer is to NULL to - help prevent child drivers from accessing the device since it is now - gone. - - (09/13/2001) gkh - Moved generic driver initialize after we have registered with the USB - core. Thanks to Randy Dunlap for pointing this problem out. - - (07/03/2001) gkh - Fixed module paramater size. Thanks to John Brockmeyer for the pointer. - Fixed vendor and product getting defined through the MODULE_PARM macro - if the Generic driver wasn't compiled in. - Fixed problem with generic_shutdown() not being called for drivers that - don't have a shutdown() function. - - (06/06/2001) gkh - added evil hack that is needed for the prolific pl2303 device due to the - crazy way its endpoints are set up. - - (05/30/2001) gkh - switched from using spinlock to a semaphore, which fixes lots of problems. - - (04/08/2001) gb - Identify version on module load. - - 2001_02_05 gkh - Fixed buffer overflows bug with the generic serial driver. Thanks to - Todd Squires <squirest@ct0.com> for fixing this. - - (01/10/2001) gkh - Fixed bug where the generic serial adaptor grabbed _any_ device that was - offered to it. - - (12/12/2000) gkh - Removed MOD_INC and MOD_DEC from poll and disconnect functions, and - moved them to the serial_open and serial_close functions. - Also fixed bug with there not being a MOD_DEC for the generic driver - (thanks to Gary Brubaker for finding this.) - - (11/29/2000) gkh - Small NULL pointer initialization cleanup which saves a bit of disk image - - (11/01/2000) Adam J. Richter - instead of using idVendor/idProduct pairs, usb serial drivers - now identify their hardware interest with usb_device_id tables, - which they usually have anyhow for use with MODULE_DEVICE_TABLE. - - (10/05/2000) gkh - Fixed bug with urb->dev not being set properly, now that the usb - core needs it. - - (09/11/2000) gkh - Removed DEBUG #ifdefs with call to usb_serial_debug_data - - (08/28/2000) gkh - Added port_lock to port structure. - Added locks for SMP safeness to generic driver - Fixed the ability to open a generic device's port more than once. - - (07/23/2000) gkh - Added bulk_out_endpointAddress to port structure. - - (07/19/2000) gkh, pberger, and borchers - Modifications to allow usb-serial drivers to be modules. - - (07/03/2000) gkh - Added more debugging to serial_ioctl call - - (06/25/2000) gkh - Changed generic_write_bulk_callback to not call wake_up_interruptible - directly, but to have port_softint do it at a safer time. - - (06/23/2000) gkh - Cleaned up debugging statements in a quest to find UHCI timeout bug. - - (05/22/2000) gkh - Changed the makefile, enabling the big CONFIG_USB_SERIAL_SOMTHING to be - removed from the individual device source files. - - (05/03/2000) gkh - Added the Digi Acceleport driver from Al Borchers and Peter Berger. - - (05/02/2000) gkh - Changed devfs and tty register code to work properly now. This was based on - the ACM driver changes by Vojtech Pavlik. - - (04/27/2000) Ryan VanderBijl - Put calls to *_paranoia_checks into one function. - - (04/23/2000) gkh - Fixed bug that Randy Dunlap found for Generic devices with no bulk out ports. - Moved when the startup code printed out the devices that are supported. - - (04/19/2000) gkh - Added driver for ZyXEL omni.net lcd plus ISDN TA - Made startup info message specify which drivers were compiled in. - - (04/03/2000) gkh - Changed the probe process to remove the module unload races. - Changed where the tty layer gets initialized to have devfs work nicer. - Added initial devfs support. - - (03/26/2000) gkh - Split driver up into device specific pieces. - - (03/19/2000) gkh - Fixed oops that could happen when device was removed while a program - was talking to the device. - Removed the static urbs and now all urbs are created and destroyed - dynamically. - Reworked the internal interface. Now everything is based on the - usb_serial_port structure instead of the larger usb_serial structure. - This fixes the bug that a multiport device could not have more than - one port open at one time. - - (03/17/2000) gkh - Added config option for debugging messages. - Added patch for keyspan pda from Brian Warner. - - (03/06/2000) gkh - Added the keyspan pda code from Brian Warner <warner@lothar.com> - Moved a bunch of the port specific stuff into its own structure. This - is in anticipation of the true multiport devices (there's a bug if you - try to access more than one port of any multiport device right now) - - (02/21/2000) gkh - Made it so that any serial devices only have to specify which functions - they want to overload from the generic function calls (great, - inheritance in C, in a driver, just what I wanted...) - Added support for set_termios and ioctl function calls. No drivers take - advantage of this yet. - Removed the #ifdef MODULE, now there is no module specific code. - Cleaned up a few comments in usb-serial.h that were wrong (thanks again - to Miles Lott). - Small fix to get_free_serial. - - (02/14/2000) gkh - Removed the Belkin and Peracom functionality from the driver due to - the lack of support from the vendor, and me not wanting people to - accidenatly buy the device, expecting it to work with Linux. - Added read_bulk_callback and write_bulk_callback to the type structure - for the needs of the FTDI and WhiteHEAT driver. - Changed all reverences to FTDI to FTDI_SIO at the request of Bill - Ryder. - Changed the output urb size back to the max endpoint size to make - the ftdi_sio driver have it easier, and due to the fact that it didn't - really increase the speed any. - - (02/11/2000) gkh - Added VISOR_FUNCTION_CONSOLE to the visor startup function. This was a - patch from Miles Lott (milos@insync.net). - Fixed bug with not restoring the minor range that a device grabs, if - the startup function fails (thanks Miles for finding this). - - (02/05/2000) gkh - Added initial framework for the Keyspan PDA serial converter so that - Brian Warner has a place to put his code. - Made the ezusb specific functions generic enough that different - devices can use them (whiteheat and keyspan_pda both need them). - Split out a whole bunch of structure and other stuff to a separate - usb-serial.h file. - Made the Visor connection messages a little more understandable, now - that Miles Lott (milos@insync.net) has gotten the Generic channel to - work. Also made them always show up in the log file. - - (01/25/2000) gkh - Added initial framework for FTDI serial converter so that Bill Ryder - has a place to put his code. - Added the vendor specific info from Handspring. Now we can print out - informational debug messages as well as understand what is happening. - - (01/23/2000) gkh - Fixed problem of crash when trying to open a port that didn't have a - device assigned to it. Made the minor node finding a little smarter, - now it looks to find a continuous space for the new device. - - (01/21/2000) gkh - Fixed bug in visor_startup with patch from Miles Lott (milos@insync.net) - Fixed get_serial_by_minor which was all messed up for multi port - devices. Fixed multi port problem for generic devices. Now the number - of ports is determined by the number of bulk out endpoints for the - generic device. - - (01/19/2000) gkh - Removed lots of cruft that was around from the old (pre urb) driver - interface. - Made the serial_table dynamic. This should save lots of memory when - the number of minor nodes goes up to 256. - Added initial support for devices that have more than one port. - Added more debugging comments for the Visor, and added a needed - set_configuration call. - - (01/17/2000) gkh - Fixed the WhiteHEAT firmware (my processing tool had a bug) - and added new debug loader firmware for it. - Removed the put_char function as it isn't really needed. - Added visor startup commands as found by the Win98 dump. - - (01/13/2000) gkh - Fixed the vendor id for the generic driver to the one I meant it to be. - - (01/12/2000) gkh - Forget the version numbering...that's pretty useless... - Made the driver able to be compiled so that the user can select which - converter they want to use. This allows people who only want the Visor - support to not pay the memory size price of the WhiteHEAT. - Fixed bug where the generic driver (idVendor=0000 and idProduct=0000) - grabbed the root hub. Not good. - - version 0.4.0 (01/10/2000) gkh - Added whiteheat.h containing the firmware for the ConnectTech WhiteHEAT - device. Added startup function to allow firmware to be downloaded to - a device if it needs to be. - Added firmware download logic to the WhiteHEAT device. - Started to add #defines to split up the different drivers for potential - configuration option. - - version 0.3.1 (12/30/99) gkh - Fixed problems with urb for bulk out. - Added initial support for multiple sets of endpoints. This enables - the Handspring Visor to be attached successfully. Only the first - bulk in / bulk out endpoint pair is being used right now. - - version 0.3.0 (12/27/99) gkh - Added initial support for the Handspring Visor based on a patch from - Miles Lott (milos@sneety.insync.net) - Cleaned up the code a bunch and converted over to using urbs only. - - version 0.2.3 (12/21/99) gkh - Added initial support for the Connect Tech WhiteHEAT converter. - Incremented the number of ports in expectation of getting the - WhiteHEAT to work properly (4 ports per connection). - Added notification on insertion and removal of what port the - device is/was connected to (and what kind of device it was). - - version 0.2.2 (12/16/99) gkh - Changed major number to the new allocated number. We're legal now! - - version 0.2.1 (12/14/99) gkh - Fixed bug that happens when device node is opened when there isn't a - device attached to it. Thanks to marek@webdesign.no for noticing this. - - version 0.2.0 (11/10/99) gkh - Split up internals to make it easier to add different types of serial - converters to the code. - Added a "generic" driver that gets it's vendor and product id - from when the module is loaded. Thanks to David E. Nelson (dnelson@jump.net) - for the idea and sample code (from the usb scanner driver.) - Cleared up any licensing questions by releasing it under the GNU GPL. - - version 0.1.2 (10/25/99) gkh - Fixed bug in detecting device. - - version 0.1.1 (10/05/99) gkh - Changed the major number to not conflict with anything else. - - version 0.1 (09/28/99) gkh - Can recognize the two different devices and start up a read from - device when asked to. Writes also work. No control signals yet, this - all is vendor specific data (i.e. no spec), also no control for - different baud rates or other bit settings. - Currently we are using the same devid as the acm driver. This needs - to change. - ------------------------------------------------------------------------ -visor.c Change Log comments: - - (06/03/2003) Judd Montgomery <judd at jpilot.org> - Added support for module parameter options for untested/unknown - devices. - - (03/09/2003) gkh - Added support for the Sony Clie NZ90V device. Thanks to Martin Brachtl - <brachtl@redgrep.cz> for the information. - - (03/05/2003) gkh - Think Treo support is now working. - - (04/03/2002) gkh - Added support for the Sony OS 4.1 devices. Thanks to Hiroyuki ARAKI - <hiro@zob.ne.jp> for the information. - - (03/27/2002) gkh - Removed assumptions that port->tty was always valid (is not true - for usb serial console devices.) - - (03/23/2002) gkh - Added support for the Palm i705 device, thanks to Thomas Riemer - <tom@netmech.com> for the information. - - (03/21/2002) gkh - Added support for the Palm m130 device, thanks to Udo Eisenbarth - <udo.eisenbarth@web.de> for the information. - - (02/27/2002) gkh - Reworked the urb handling logic. We have no more pool, but dynamically - allocate the urb and the transfer buffer on the fly. In testing this - does not incure any measurable overhead. This also relies on the fact - that we have proper reference counting logic for urbs. - - (02/21/2002) SilaS - Added initial support for the Palm m515 devices. - - (02/14/2002) gkh - Added support for the Clie S-360 device. - - (12/18/2001) gkh - Added better Clie support for 3.5 devices. Thanks to Geoffrey Levand - for the patch. - - (11/11/2001) gkh - Added support for the m125 devices, and added check to prevent oopses - for Clié devices that lie about the number of ports they have. - - (08/30/2001) gkh - Added support for the Clie devices, both the 3.5 and 4.0 os versions. - Many thanks to Daniel Burke, and Bryan Payne for helping with this. - - (08/23/2001) gkh - fixed a few potential bugs pointed out by Oliver Neukum. - - (05/30/2001) gkh - switched from using spinlock to a semaphore, which fixes lots of problems. - - (05/28/2000) gkh - Added initial support for the Palm m500 and Palm m505 devices. - - (04/08/2001) gb - Identify version on module load. - - (01/21/2000) gkh - Added write_room and chars_in_buffer, as they were previously using the - generic driver versions which is all wrong now that we are using an urb - pool. Thanks to Wolfgang Grandegger for pointing this out to me. - Removed count assignment in the write function, which was not needed anymore - either. Thanks to Al Borchers for pointing this out. - - (12/12/2000) gkh - Moved MOD_DEC to end of visor_close to be nicer, as the final write - message can sleep. - - (11/12/2000) gkh - Fixed bug with data being dropped on the floor by forcing tty->low_latency - to be on. Hopefully this fixes the OHCI issue! - - (11/01/2000) Adam J. Richter - usb_device_id table support - - (10/05/2000) gkh - Fixed bug with urb->dev not being set properly, now that the usb - core needs it. - - (09/11/2000) gkh - Got rid of always calling kmalloc for every urb we wrote out to the - device. - Added visor_read_callback so we can keep track of bytes in and out for - those people who like to know the speed of their device. - Removed DEBUG #ifdefs with call to usb_serial_debug_data - - (09/06/2000) gkh - Fixed oops in visor_exit. Need to uncomment usb_unlink_urb call _after_ - the host controller drivers set urb->dev = NULL when the urb is finished. - - (08/28/2000) gkh - Added locks for SMP safeness. - - (08/08/2000) gkh - Fixed endian problem in visor_startup. - Fixed MOD_INC and MOD_DEC logic and the ability to open a port more - than once. - - (07/23/2000) gkh - Added pool of write urbs to speed up transfers to the visor. - - (07/19/2000) gkh - Added module_init and module_exit functions to handle the fact that this - driver is a loadable module now. - - (07/03/2000) gkh - Added visor_set_ioctl and visor_set_termios functions (they don't do much - of anything, but are good for debugging.) - - (06/25/2000) gkh - Fixed bug in visor_unthrottle that should help with the disconnect in PPP - bug that people have been reporting. - - (06/23/2000) gkh - Cleaned up debugging statements in a quest to find UHCI timeout bug. - - (04/27/2000) Ryan VanderBijl - Fixed memory leak in visor_close - - (03/26/2000) gkh - Split driver up into device specific pieces. - ------------------------------------------------------------------------ -pl2303.c Change Log comments: - - 2002_Mar_26 gkh - allowed driver to work properly if there is no tty assigned to a port - (this happens for serial console devices.) - - 2001_Oct_06 gkh - Added RTS and DTR line control. Thanks to joe@bndlg.de for parts of it. - - 2001_Sep_19 gkh - Added break support. - - 2001_Aug_30 gkh - fixed oops in write_bulk_callback. - - 2001_Aug_28 gkh - reworked buffer logic to be like other usb-serial drivers. Hopefully - removing some reported problems. - - 2001_Jun_06 gkh - finished porting to 2.4 format. - - ------------------------------------------------------------------------ -io_edgeport.c Change Log comments: - - 2003_04_03 al borchers - - fixed a bug (that shows up with dosemu) where the tty struct is - used in a callback after it has been freed - - 2.3 2002_03_08 greg kroah-hartman - - fixed bug when multiple devices were attached at the same time. - - 2.2 2001_11_14 greg kroah-hartman - - fixed bug in edge_close that kept the port from being used more - than once. - - fixed memory leak on device removal. - - fixed potential double free of memory when command urb submitting - failed. - - other small cleanups when the device is removed - - 2.1 2001_07_09 greg kroah-hartman - - added support for TIOCMBIS and TIOCMBIC. - - (04/08/2001) gb - - Identify version on module load. - - 2.0 2001_03_05 greg kroah-hartman - - reworked entire driver to fit properly in with the other usb-serial - drivers. Occasional oopses still happen, but it's a good start. - - 1.2.3 (02/23/2001) greg kroah-hartman - - changed device table to work properly for 2.4.x final format. - - fixed problem with dropping data at high data rates. - - 1.2.2 (11/27/2000) greg kroah-hartman - - cleaned up more NTisms. - - Added device table for 2.4.0-test11 - - 1.2.1 (11/08/2000) greg kroah-hartman - - Started to clean up NTisms. - - Fixed problem with dev field of urb for kernels >= 2.4.0-test9 - - 1.2 (10/17/2000) David Iacovelli - Remove all EPIC code and GPL source - Fix RELEVANT_IFLAG macro to include flow control - changes port configuration changes. - Fix redefinition of SERIAL_MAGIC - Change all timeout values to 5 seconds - Tried to fix the UHCI multiple urb submission, but failed miserably. - it seems to work fine with OHCI. - ( Greg take a look at the #if 0 at end of WriteCmdUsb() we must - find a way to work arount this UHCI bug ) - - 1.1 (10/11/2000) David Iacovelli - Fix XON/XOFF flow control to support both IXON and IXOFF - - 0.9.27 (06/30/2000) David Iacovelli - Added transmit queue and now allocate urb for command writes. - - 0.9.26 (06/29/2000) David Iacovelli - Add support for 80251 based edgeport - - 0.9.25 (06/27/2000) David Iacovelli - Do not close the port if it has multiple opens. - - 0.9.24 (05/26/2000) David Iacovelli - Add IOCTLs to support RXTX and JAVA POS - and first cut at running BlackBox Demo - - 0.9.23 (05/24/2000) David Iacovelli - Add IOCTLs to support RXTX and JAVA POS - - 0.9.22 (05/23/2000) David Iacovelli - fixed bug in enumeration. If epconfig turns on mapping by - path after a device is already plugged in, we now update - the mapping correctly - - 0.9.21 (05/16/2000) David Iacovelli - Added BlockUntilChaseResp() to also wait for txcredits - Updated the way we allocate and handle write URBs - Add debug code to dump buffers - - 0.9.20 (05/01/2000) David Iacovelli - change driver to use usb/tts/ - - 0.9.19 (05/01/2000) David Iacovelli - Update code to compile if DEBUG is off - - 0.9.18 (04/28/2000) David Iacovelli - cleanup and test tty_register with devfs - - 0.9.17 (04/27/2000) greg kroah-hartman - changed tty_register around to be like the way it - was before, but now it works properly with devfs. - - 0.9.16 (04/26/2000) david iacovelli - Fixed bug in GetProductInfo() - - 0.9.15 (04/25/2000) david iacovelli - Updated enumeration - - 0.9.14 (04/24/2000) david iacovelli - Removed all config/status IOCTLS and - converted to using /proc/edgeport - still playing with devfs - - 0.9.13 (04/24/2000) david iacovelli - Removed configuration based on ttyUSB0 - Added support for configuration using /prod/edgeport - first attempt at using devfs (not working yet!) - Added IOCTL to GetProductInfo() - Added support for custom baud rates - Add support for random port numbers - - 0.9.12 (04/18/2000) david iacovelli - added additional configuration IOCTLs - use ttyUSB0 for configuration - - 0.9.11 (04/17/2000) greg kroah-hartman - fixed module initialization race conditions. - made all urbs dynamically allocated. - made driver devfs compatible. now it only registers the tty device - when the device is actually plugged in. - - 0.9.10 (04/13/2000) greg kroah-hartman - added proc interface framework. - - 0.9.9 (04/13/2000) david iacovelli - added enumeration code and ioctls to configure the device - - 0.9.8 (04/12/2000) david iacovelli - Change interrupt read start when device is plugged in - and stop when device is removed - process interrupt reads when all ports are closed - (keep value of rxBytesAvail consistent with the edgeport) - set the USB_BULK_QUEUE flag so that we can shove a bunch - of urbs at once down the pipe - - 0.9.7 (04/10/2000) david iacovelli - start to add enumeration code. - generate serial number for epic devices - add support for kdb - - 0.9.6 (03/30/2000) david iacovelli - add IOCTL to get string, manufacture, and boot descriptors - - 0.9.5 (03/14/2000) greg kroah-hartman - more error checking added to SerialOpen to try to fix UHCI open problem - - 0.9.4 (03/09/2000) greg kroah-hartman - added more error checking to handle oops when data is hanging - around and tty is abruptly closed. - - 0.9.3 (03/09/2000) david iacovelli - Add epic support for xon/xoff chars - play with performance - - 0.9.2 (03/08/2000) greg kroah-hartman - changed most "info" calls to "dbg" - implemented flow control properly in the termios call - - 0.9.1 (03/08/2000) david iacovelli - added EPIC support - enabled bootloader update - - 0.9 (03/08/2000) greg kroah-hartman - Release to IO networks. - Integrated changes that David made - made getting urbs for writing SMP safe - - 0.8 (03/07/2000) greg kroah-hartman - Release to IO networks. - Fixed problems that were seen in code by David. - Now both Edgeport/4 and Edgeport/2 works properly. - Changed most of the functions to use port instead of serial. - - 0.7 (02/27/2000) greg kroah-hartman - Milestone 3 release. - Release to IO Networks - ioctl for waiting on line change implemented. - ioctl for getting statistics implemented. - multiport support working. - lsr and msr registers are now handled properly. - change break now hooked up and working. - support for all known Edgeport devices. - - 0.6 (02/22/2000) greg kroah-hartman - Release to IO networks. - CHASE is implemented correctly when port is closed. - SerialOpen now blocks correctly until port is fully opened. - - 0.5 (02/20/2000) greg kroah-hartman - Release to IO networks. - Known problems: - modem status register changes are not sent on to the user - CHASE is not implemented when the port is closed. - - 0.4 (02/16/2000) greg kroah-hartman - Second cut at the CeBit demo. - Doesn't leak memory on every write to the port - Still small leaks on startup. - Added support for Edgeport/2 and Edgeport/8 - - 0.3 (02/15/2000) greg kroah-hartman - CeBit demo release. - Force the line settings to 4800, 8, 1, e for the demo. - Warning! This version leaks memory like crazy! - - 0.2 (01/30/2000) greg kroah-hartman - Milestone 1 release. - Device is found by USB subsystem, enumerated, firmware is downloaded - and the descriptors are printed to the debug log, config is set, and - green light starts to blink. Open port works, and data can be sent - and received at the default settings of the UART. Loopback connector - and debug log confirms this. - - 0.1 (01/23/2000) greg kroah-hartman - Initial release to help IO Networks try to set up their test system. - Edgeport4 is recognized, firmware is downloaded, config is set so - device blinks green light every 3 sec. Port is bound, but opening, - closing, and sending data do not work properly. - - diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c index d6921fa1403c..f9f29b289f2f 100644 --- a/drivers/usb/serial/belkin_sa.c +++ b/drivers/usb/serial/belkin_sa.c @@ -20,50 +20,7 @@ * TODO: * -- Add true modem contol line query capability. Currently we track the * states reported by the interrupt and the states we request. - * -- Add error reporting back to application for UART error conditions. - * Just point me at how to implement this and I'll do it. I've put the - * framework in, but haven't analyzed the "tty_flip" interface yet. * -- Add support for flush commands - * -- Add everything that is missing :) - * - * 27-Nov-2001 gkh - * compressed all the differnent device entries into 1. - * - * 30-May-2001 gkh - * switched from using spinlock to a semaphore, which fixes lots of - * problems. - * - * 08-Apr-2001 gb - * - Identify version on module load. - * - * 12-Mar-2001 gkh - * - Added support for the GoHubs GO-COM232 device which is the same as the - * Peracom device. - * - * 06-Nov-2000 gkh - * - Added support for the old Belkin and Peracom devices. - * - Made the port able to be opened multiple times. - * - Added some defaults incase the line settings are things these devices - * can't support. - * - * 18-Oct-2000 William Greathouse - * Released into the wild (linux-usb-devel) - * - * 17-Oct-2000 William Greathouse - * Add code to recognize firmware version and set hardware flow control - * appropriately. Belkin states that firmware prior to 3.05 does not - * operate correctly in hardware handshake mode. I have verified this - * on firmware 2.05 -- for both RTS and DTR input flow control, the control - * line is not reset. The test performed by the Belkin Win* driver is - * to enable hardware flow control for firmware 2.06 or greater and - * for 1.00 or prior. I am only enabling for 2.06 or greater. - * - * 12-Oct-2000 William Greathouse - * First cut at supporting Belkin USB Serial Adapter F5U103 - * I did not have a copy of the original work to support this - * adapter, so pardon any stupid mistakes. All of the information - * I am using to write this driver was acquired by using a modified - * UsbSnoop on Windows2000 and from examining the other USB drivers. */ #include <linux/kernel.h> diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index 6ae1c0688b5e..0e77511060c0 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -335,13 +335,12 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port) goto out; dbg("%s - submitting interrupt urb", __func__); - port->interrupt_in_urb->dev = serial->dev; r = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (r) { dev_err(&port->dev, "%s - failed submitting interrupt urb," " error %d\n", __func__, r); ch341_close(port); - return -EPROTO; + goto out; } r = usb_serial_generic_open(tty, port); diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index fd67cc53545b..7175bb107dec 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -280,7 +280,10 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request, dbg("%s - Unable to send config request, " "request=0x%x size=%d result=%d\n", __func__, request, size, result); - return -EPROTO; + if (result > 0) + result = -EPROTO; + + return result; } return 0; @@ -331,7 +334,10 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request, dbg("%s - Unable to send request, " "request=0x%x size=%d result=%d\n", __func__, request, size, result); - return -EPROTO; + if (result > 0) + result = -EPROTO; + + return result; } return 0; @@ -395,10 +401,11 @@ static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) dbg("%s - port %d", __func__, port->number); - if (cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) { - dev_err(&port->dev, "%s - Unable to enable UART\n", - __func__); - return -EPROTO; + result = cp210x_set_config_single(port, CP210X_IFC_ENABLE, + UART_ENABLE); + if (result) { + dev_err(&port->dev, "%s - Unable to enable UART\n", __func__); + return result; } result = usb_serial_generic_open(tty, port); @@ -520,18 +527,13 @@ static void cp210x_get_termios_port(struct usb_serial_port *port, cflag |= PARENB; break; case BITS_PARITY_MARK: - dbg("%s - parity = MARK (not supported, disabling parity)", - __func__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + dbg("%s - parity = MARK", __func__); + cflag |= (PARENB|PARODD|CMSPAR); break; case BITS_PARITY_SPACE: - dbg("%s - parity = SPACE (not supported, disabling parity)", - __func__); - cflag &= ~PARENB; - bits &= ~BITS_PARITY_MASK; - cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2); + dbg("%s - parity = SPACE", __func__); + cflag &= ~PARODD; + cflag |= (PARENB|CMSPAR); break; default: dbg("%s - Unknown parity mode, disabling parity", __func__); @@ -588,7 +590,6 @@ static void cp210x_set_termios(struct tty_struct *tty, if (!tty) return; - tty->termios->c_cflag &= ~CMSPAR; cflag = tty->termios->c_cflag; old_cflag = old_termios->c_cflag; baud = cp210x_quantise_baudrate(tty_get_baud_rate(tty)); @@ -643,16 +644,27 @@ static void cp210x_set_termios(struct tty_struct *tty, "not supported by device\n"); } - if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) { + if ((cflag & (PARENB|PARODD|CMSPAR)) != + (old_cflag & (PARENB|PARODD|CMSPAR))) { cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2); bits &= ~BITS_PARITY_MASK; if (cflag & PARENB) { - if (cflag & PARODD) { - bits |= BITS_PARITY_ODD; - dbg("%s - parity = ODD", __func__); + if (cflag & CMSPAR) { + if (cflag & PARODD) { + bits |= BITS_PARITY_MARK; + dbg("%s - parity = MARK", __func__); + } else { + bits |= BITS_PARITY_SPACE; + dbg("%s - parity = SPACE", __func__); + } } else { - bits |= BITS_PARITY_EVEN; - dbg("%s - parity = EVEN", __func__); + if (cflag & PARODD) { + bits |= BITS_PARITY_ODD; + dbg("%s - parity = ODD", __func__); + } else { + bits |= BITS_PARITY_EVEN; + dbg("%s - parity = EVEN", __func__); + } } } if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2)) diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index f744ab7a3b19..98bf83349838 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -138,7 +138,6 @@ static int cyberjack_startup(struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { int result; - serial->port[i]->interrupt_in_urb->dev = serial->dev; result = usb_submit_urb(serial->port[i]->interrupt_in_urb, GFP_KERNEL); if (result) @@ -208,7 +207,6 @@ static void cyberjack_close(struct usb_serial_port *port) static int cyberjack_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { - struct usb_serial *serial = port->serial; struct cyberjack_private *priv = usb_get_serial_port_data(port); unsigned long flags; int result; @@ -221,22 +219,18 @@ static int cyberjack_write(struct tty_struct *tty, return 0; } - spin_lock_bh(&port->lock); - if (port->write_urb_busy) { - spin_unlock_bh(&port->lock); + if (!test_and_clear_bit(0, &port->write_urbs_free)) { dbg("%s - already writing", __func__); return 0; } - port->write_urb_busy = 1; - spin_unlock_bh(&port->lock); spin_lock_irqsave(&priv->lock, flags); if (count+priv->wrfilled > sizeof(priv->wrbuf)) { /* To much data for buffer. Reset buffer. */ priv->wrfilled = 0; - port->write_urb_busy = 0; spin_unlock_irqrestore(&priv->lock, flags); + set_bit(0, &port->write_urbs_free); return 0; } @@ -265,13 +259,7 @@ static int cyberjack_write(struct tty_struct *tty, priv->wrsent = length; /* set up our urb */ - usb_fill_bulk_urb(port->write_urb, serial->dev, - usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress), - port->write_urb->transfer_buffer, length, - ((serial->type->write_bulk_callback) ? - serial->type->write_bulk_callback : - cyberjack_write_bulk_callback), - port); + port->write_urb->transfer_buffer_length = length; /* send the data out the bulk port */ result = usb_submit_urb(port->write_urb, GFP_ATOMIC); @@ -283,7 +271,7 @@ static int cyberjack_write(struct tty_struct *tty, priv->wrfilled = 0; priv->wrsent = 0; spin_unlock_irqrestore(&priv->lock, flags); - port->write_urb_busy = 0; + set_bit(0, &port->write_urbs_free); return 0; } @@ -351,7 +339,6 @@ static void cyberjack_read_int_callback(struct urb *urb) spin_unlock(&priv->lock); if (!old_rdtodo) { - port->read_urb->dev = port->serial->dev; result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) dev_err(&port->dev, "%s - failed resubmitting " @@ -362,7 +349,6 @@ static void cyberjack_read_int_callback(struct urb *urb) } resubmit: - port->interrupt_in_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); if (result) dev_err(&port->dev, "usb_submit_urb(read int) failed\n"); @@ -415,7 +401,6 @@ static void cyberjack_read_bulk_callback(struct urb *urb) /* Continue to read if we have still urbs to do. */ if (todo /* || (urb->actual_length==port->bulk_in_endpointAddress)*/) { - port->read_urb->dev = port->serial->dev; result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result) dev_err(&port->dev, "%s - failed resubmitting read " @@ -432,7 +417,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb) dbg("%s - port %d", __func__, port->number); - port->write_urb_busy = 0; + set_bit(0, &port->write_urbs_free); if (status) { dbg("%s - nonzero write bulk status received: %d", __func__, status); @@ -455,13 +440,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb) priv->wrsent += length; /* set up our urb */ - usb_fill_bulk_urb(port->write_urb, port->serial->dev, - usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), - port->write_urb->transfer_buffer, length, - ((port->serial->type->write_bulk_callback) ? - port->serial->type->write_bulk_callback : - cyberjack_write_bulk_callback), - port); + port->write_urb->transfer_buffer_length = length; /* send the data out the bulk port */ result = usb_submit_urb(port->write_urb, GFP_ATOMIC); diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index d9906eb9d16a..07680d6b792b 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -16,32 +16,6 @@ * * See http://geocities.com/i0xox0i for information on this driver and the * earthmate usb device. - * - * Lonnie Mendez <dignome@gmail.com> - * 4-29-2005 - * Fixed problem where setting or retreiving the serial config would fail - * with EPIPE. Removed CRTS toggling so the driver behaves more like - * other usbserial adapters. Issued new interval of 1ms instead of the - * default 10ms. As a result, transfer speed has been substantially - * increased from avg. 850bps to avg. 3300bps. initial termios has also - * been modified. Cleaned up code and formatting issues so it is more - * readable. Replaced the C++ style comments. - * - * Lonnie Mendez <dignome@gmail.com> - * 12-15-2004 - * Incorporated write buffering from pl2303 driver. Fixed bug with line - * handling so both lines are raised in cypress_open. (was dropping rts) - * Various code cleanups made as well along with other misc bug fixes. - * - * Lonnie Mendez <dignome@gmail.com> - * 04-10-2004 - * Driver modified to support dynamic line settings. Various improvements - * and features. - * - * Neil Whelchel - * 10-2003 - * Driver first released. - * */ /* Thanks to Neil Whelchel for writing the first cypress m8 implementation @@ -1162,8 +1136,6 @@ static void cypress_unthrottle(struct tty_struct *tty) return; if (actually_throttled) { - port->interrupt_in_urb->dev = port->serial->dev; - result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result) { dev_err(&port->dev, "%s - failed submitting read urb, " @@ -1352,7 +1324,6 @@ static void cypress_write_int_callback(struct urb *urb) dbg("%s - nonzero write bulk status received: %d", __func__, status); port->interrupt_out_urb->transfer_buffer_length = 1; - port->interrupt_out_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC); if (!result) return; diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index e92cbefc0f88..6d26a77d0f2a 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -13,222 +13,6 @@ * * Peter Berger (pberger@brimson.com) * Al Borchers (borchers@steinerpoint.com) -* -* (12/03/2001) gkh -* switched to using port->port.count instead of private version. -* Removed port->active -* -* (04/08/2001) gb -* Identify version on module load. -* -* (11/01/2000) Adam J. Richter -* usb_device_id table support -* -* (11/01/2000) pberger and borchers -* -- Turned off the USB_DISABLE_SPD flag for write bulk urbs--it caused -* USB 4 ports to hang on startup. -* -- Serialized access to write urbs by adding the dp_write_urb_in_use -* flag; otherwise, the driver caused SMP system hangs. Watching the -* urb status is not sufficient. -* -* (10/05/2000) gkh -* -- Fixed bug with urb->dev not being set properly, now that the usb -* core needs it. -* -* (8/8/2000) pberger and borchers -* -- Fixed close so that -* - it can timeout while waiting for transmit idle, if needed; -* - it ignores interrupts when flushing the port, turning -* of modem signalling, and so on; -* - it waits for the flush to really complete before returning. -* -- Read_bulk_callback and write_bulk_callback check for a closed -* port before using the tty struct or writing to the port. -* -- The two changes above fix the oops caused by interrupted closes. -* -- Added interruptible args to write_oob_command and set_modem_signals -* and added a timeout arg to transmit_idle; needed for fixes to -* close. -* -- Added code for rx_throttle and rx_unthrottle so that input flow -* control works. -* -- Added code to set overrun, parity, framing, and break errors -* (untested). -* -- Set USB_DISABLE_SPD flag for write bulk urbs, so no 0 length -* bulk writes are done. These hung the Digi USB device. The -* 0 length bulk writes were a new feature of usb-uhci added in -* the 2.4.0-test6 kernels. -* -- Fixed mod inc race in open; do mod inc before sleeping to wait -* for a close to finish. -* -* (7/31/2000) pberger -* -- Fixed bugs with hardware handshaking: -* - Added code to set/clear tty->hw_stopped in digi_read_oob_callback() -* and digi_set_termios() -* -- Added code in digi_set_termios() to -* - add conditional in code handling transition from B0 to only -* set RTS if RTS/CTS flow control is either not in use or if -* the port is not currently throttled. -* - handle turning off CRTSCTS. -* -* (7/30/2000) borchers -* -- Added support for more than one Digi USB device by moving -* globals to a private structure in the pointed to from the -* usb_serial structure. -* -- Moved the modem change and transmit idle wait queues into -* the port private structure, so each port has its own queue -* rather than sharing global queues. -* -- Added support for break signals. -* -* (7/25/2000) pberger -* -- Added USB-2 support. Note: the USB-2 supports 3 devices: two -* serial and a parallel port. The parallel port is implemented -* as a serial-to-parallel converter. That is, the driver actually -* presents all three USB-2 interfaces as serial ports, but the third -* one physically connects to a parallel device. Thus, for example, -* one could plug a parallel printer into the USB-2's third port, -* but from the kernel's (and userland's) point of view what's -* actually out there is a serial device. -* -* (7/15/2000) borchers -* -- Fixed race in open when a close is in progress. -* -- Keep count of opens and dec the module use count for each -* outstanding open when shutdown is called (on disconnect). -* -- Fixed sanity checks in read_bulk_callback and write_bulk_callback -* so pointers are checked before use. -* -- Split read bulk callback into in band and out of band -* callbacks, and no longer restart read chains if there is -* a status error or a sanity error. This fixed the seg -* faults and other errors we used to get on disconnect. -* -- Port->active is once again a flag as usb-serial intended it -* to be, not a count. Since it was only a char it would -* have been limited to 256 simultaneous opens. Now the open -* count is kept in the port private structure in dp_open_count. -* -- Added code for modularization of the digi_acceleport driver. -* -* (6/27/2000) pberger and borchers -* -- Zeroed out sync field in the wakeup_task before first use; -* otherwise the uninitialized value might prevent the task from -* being scheduled. -* -- Initialized ret value to 0 in write_bulk_callback, otherwise -* the uninitialized value could cause a spurious debugging message. -* -* (6/22/2000) pberger and borchers -* -- Made cond_wait_... inline--apparently on SPARC the flags arg -* to spin_lock_irqsave cannot be passed to another function -* to call spin_unlock_irqrestore. Thanks to Pauline Middelink. -* -- In digi_set_modem_signals the inner nested spin locks use just -* spin_lock() rather than spin_lock_irqsave(). The old code -* mistakenly left interrupts off. Thanks to Pauline Middelink. -* -- copy_from_user (which can sleep) is no longer called while a -* spinlock is held. We copy to a local buffer before getting -* the spinlock--don't like the extra copy but the code is simpler. -* -- Printk and dbg are no longer called while a spin lock is held. -* -* (6/4/2000) pberger and borchers -* -- Replaced separate calls to spin_unlock_irqrestore and -* interruptible_sleep_on_timeout with a new function -* cond_wait_interruptible_timeout_irqrestore. This eliminates -* the race condition where the wake up could happen after -* the unlock and before the sleep. -* -- Close now waits for output to drain. -* -- Open waits until any close in progress is finished. -* -- All out of band responses are now processed, not just the -* first in a USB packet. -* -- Fixed a bug that prevented the driver from working when the -* first Digi port was not the first USB serial port--the driver -* was mistakenly using the external USB serial port number to -* try to index into its internal ports. -* -- Fixed an SMP bug -- write_bulk_callback is called directly from -* an interrupt, so spin_lock_irqsave/spin_unlock_irqrestore are -* needed for locks outside write_bulk_callback that are also -* acquired by write_bulk_callback to prevent deadlocks. -* -- Fixed support for select() by making digi_chars_in_buffer() -* return 256 when -EINPROGRESS is set, as the line discipline -* code in n_tty.c expects. -* -- Fixed an include file ordering problem that prevented debugging -* messages from working. -* -- Fixed an intermittent timeout problem that caused writes to -* sometimes get stuck on some machines on some kernels. It turns -* out in these circumstances write_chan() (in n_tty.c) was -* asleep waiting for our wakeup call. Even though we call -* wake_up_interruptible() in digi_write_bulk_callback(), there is -* a race condition that could cause the wakeup to fail: if our -* wake_up_interruptible() call occurs between the time that our -* driver write routine finishes and write_chan() sets current->state -* to TASK_INTERRUPTIBLE, the effect of our wakeup setting the state -* to TASK_RUNNING will be lost and write_chan's subsequent call to -* schedule() will never return (unless it catches a signal). -* This race condition occurs because write_bulk_callback() (and thus -* the wakeup) are called asynchronously from an interrupt, rather than -* from the scheduler. We can avoid the race by calling the wakeup -* from the scheduler queue and that's our fix: Now, at the end of -* write_bulk_callback() we queue up a wakeup call on the scheduler -* task queue. We still also invoke the wakeup directly since that -* squeezes a bit more performance out of the driver, and any lost -* race conditions will get cleaned up at the next scheduler run. -* -* NOTE: The problem also goes away if you comment out -* the two code lines in write_chan() where current->state -* is set to TASK_RUNNING just before calling driver.write() and to -* TASK_INTERRUPTIBLE immediately afterwards. This is why the -* problem did not show up with the 2.2 kernels -- they do not -* include that code. -* -* (5/16/2000) pberger and borchers -* -- Added timeouts to sleeps, to defend against lost wake ups. -* -- Handle transition to/from B0 baud rate in digi_set_termios. -* -* (5/13/2000) pberger and borchers -* -- All commands now sent on out of band port, using -* digi_write_oob_command. -* -- Get modem control signals whenever they change, support TIOCMGET/ -* SET/BIS/BIC ioctls. -* -- digi_set_termios now supports parity, word size, stop bits, and -* receive enable. -* -- Cleaned up open and close, use digi_set_termios and -* digi_write_oob_command to set port parameters. -* -- Added digi_startup_device to start read chains on all ports. -* -- Write buffer is only used when count==1, to be sure put_char can -* write a char (unless the buffer is full). -* -* (5/10/2000) pberger and borchers -* -- Added MOD_INC_USE_COUNT/MOD_DEC_USE_COUNT calls on open/close. -* -- Fixed problem where the first incoming character is lost on -* port opens after the first close on that port. Now we keep -* the read_urb chain open until shutdown. -* -- Added more port conditioning calls in digi_open and digi_close. -* -- Convert port->active to a use count so that we can deal with multiple -* opens and closes properly. -* -- Fixed some problems with the locking code. -* -* (5/3/2000) pberger and borchers -* -- First alpha version of the driver--many known limitations and bugs. -* -* -* Locking and SMP -* -* - Each port, including the out-of-band port, has a lock used to -* serialize all access to the port's private structure. -* - The port lock is also used to serialize all writes and access to -* the port's URB. -* - The port lock is also used for the port write_wait condition -* variable. Holding the port lock will prevent a wake up on the -* port's write_wait; this can be used with cond_wait_... to be sure -* the wake up is not lost in a race when dropping the lock and -* sleeping waiting for the wakeup. -* - digi_write() does not sleep, since it is sometimes called on -* interrupt time. -* - digi_write_bulk_callback() and digi_read_bulk_callback() are -* called directly from interrupts. Hence spin_lock_irqsave() -* and spin_unlock_irqrestore() are used in the rest of the code -* for any locks they acquire. -* - digi_write_bulk_callback() gets the port lock before waking up -* processes sleeping on the port write_wait. It also schedules -* wake ups so they happen from the scheduler, because the tty -* system can miss wake ups from interrupts. -* - All sleeps use a timeout of DIGI_RETRY_TIMEOUT before looping to -* recheck the condition they are sleeping on. This is defensive, -* in case a wake up is lost. -* - Following Documentation/DocBook/kernel-locking.tmpl no spin locks -* are held when calling copy_to/from_user or printk. */ #include <linux/kernel.h> @@ -654,7 +438,6 @@ static int digi_write_oob_command(struct usb_serial_port *port, len &= ~3; memcpy(oob_port->write_urb->transfer_buffer, buf, len); oob_port->write_urb->transfer_buffer_length = len; - oob_port->write_urb->dev = port->serial->dev; ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC); if (ret == 0) { oob_priv->dp_write_urb_in_use = 1; @@ -732,7 +515,6 @@ static int digi_write_inb_command(struct usb_serial_port *port, memcpy(data, buf, len); port->write_urb->transfer_buffer_length = len; } - port->write_urb->dev = port->serial->dev; ret = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (ret == 0) { @@ -803,7 +585,6 @@ static int digi_set_modem_signals(struct usb_serial_port *port, data[7] = 0; oob_port->write_urb->transfer_buffer_length = 8; - oob_port->write_urb->dev = port->serial->dev; ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC); if (ret == 0) { @@ -899,10 +680,8 @@ static void digi_rx_unthrottle(struct tty_struct *tty) spin_lock_irqsave(&priv->dp_port_lock, flags); /* restart read chain */ - if (priv->dp_throttle_restart) { - port->read_urb->dev = port->serial->dev; + if (priv->dp_throttle_restart) ret = usb_submit_urb(port->read_urb, GFP_ATOMIC); - } /* turn throttle off */ priv->dp_throttled = 0; @@ -1195,7 +974,6 @@ static int digi_write(struct tty_struct *tty, struct usb_serial_port *port, } port->write_urb->transfer_buffer_length = data_len+2; - port->write_urb->dev = port->serial->dev; *data++ = DIGI_CMD_SEND_DATA; *data++ = data_len; @@ -1271,7 +1049,6 @@ static void digi_write_bulk_callback(struct urb *urb) = (unsigned char)priv->dp_out_buf_len; port->write_urb->transfer_buffer_length = priv->dp_out_buf_len + 2; - port->write_urb->dev = serial->dev; memcpy(port->write_urb->transfer_buffer + 2, priv->dp_out_buf, priv->dp_out_buf_len); ret = usb_submit_urb(port->write_urb, GFP_ATOMIC); @@ -1473,7 +1250,6 @@ static int digi_startup_device(struct usb_serial *serial) /* set USB_DISABLE_SPD flag for write bulk urbs */ for (i = 0; i < serial->type->num_ports + 1; i++) { port = serial->port[i]; - port->write_urb->dev = port->serial->dev; ret = usb_submit_urb(port->read_urb, GFP_KERNEL); if (ret != 0) { dev_err(&port->dev, @@ -1616,7 +1392,6 @@ static void digi_read_bulk_callback(struct urb *urb) } /* continue read */ - urb->dev = port->serial->dev; ret = usb_submit_urb(urb, GFP_ATOMIC); if (ret != 0 && ret != -EPERM) { dev_err(&port->dev, diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index ff3db5d056a5..c290df97108e 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -2105,6 +2105,9 @@ static void ftdi_set_termios(struct tty_struct *tty, cflag = termios->c_cflag; + if (old_termios == 0) + goto no_skip; + if (old_termios->c_cflag == termios->c_cflag && old_termios->c_ispeed == termios->c_ispeed && old_termios->c_ospeed == termios->c_ospeed) @@ -2118,6 +2121,7 @@ static void ftdi_set_termios(struct tty_struct *tty, (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB))) goto no_data_parity_stop_changes; +no_skip: /* Set number of data bits, parity, stop bits */ urb_value = 0; diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 1a49ca9c8ea5..bf12565f8e87 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -901,7 +901,6 @@ static int garmin_init_session(struct usb_serial_port *port) usb_kill_urb(port->interrupt_in_urb); dbg("%s - adding interrupt input", __func__); - port->interrupt_in_urb->dev = serial->dev; status = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (status) dev_err(&serial->dev->dev, @@ -1277,7 +1276,6 @@ static void garmin_read_int_callback(struct urb *urb) unsigned long flags; int retval; struct usb_serial_port *port = urb->context; - struct usb_serial *serial = port->serial; struct garmin_data *garmin_data_p = usb_get_serial_port_data(port); unsigned char *data = urb->transfer_buffer; int status = urb->status; @@ -1311,12 +1309,6 @@ static void garmin_read_int_callback(struct urb *urb) if (0 == (garmin_data_p->flags & FLAGS_BULK_IN_ACTIVE)) { /* bulk data available */ - usb_fill_bulk_urb(port->read_urb, serial->dev, - usb_rcvbulkpipe(serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - garmin_read_bulk_callback, port); retval = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (retval) { dev_err(&port->dev, @@ -1353,7 +1345,6 @@ static void garmin_read_int_callback(struct urb *urb) garmin_read_process(garmin_data_p, data, urb->actual_length, 0); - port->interrupt_in_urb->dev = port->serial->dev; retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval) dev_err(&urb->dev->dev, diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index e4db5ad2bc55..f7403576f99f 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -1,7 +1,7 @@ /* * USB Serial Converter Generic functions * - * Copyright (C) 2010 Johan Hovold (jhovold@gmail.com) + * Copyright (C) 2010 - 2011 Johan Hovold (jhovold@gmail.com) * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com) * * This program is free software; you can redistribute it and/or @@ -132,7 +132,7 @@ int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port /* if we have a bulk endpoint, start reading from it */ if (port->bulk_in_size) - result = usb_serial_generic_submit_read_urb(port, GFP_KERNEL); + result = usb_serial_generic_submit_read_urbs(port, GFP_KERNEL); return result; } @@ -157,8 +157,10 @@ static void generic_cleanup(struct usb_serial_port *port) kfifo_reset_out(&port->write_fifo); spin_unlock_irqrestore(&port->lock, flags); } - if (port->bulk_in_size) - usb_kill_urb(port->read_urb); + if (port->bulk_in_size) { + for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) + usb_kill_urb(port->read_urbs[i]); + } } } @@ -308,19 +310,52 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty) return chars; } -int usb_serial_generic_submit_read_urb(struct usb_serial_port *port, +static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port, + int index, gfp_t mem_flags) +{ + int res; + + if (!test_and_clear_bit(index, &port->read_urbs_free)) + return 0; + + dbg("%s - port %d, urb %d\n", __func__, port->number, index); + + res = usb_submit_urb(port->read_urbs[index], mem_flags); + if (res) { + if (res != -EPERM) { + dev_err(&port->dev, + "%s - usb_submit_urb failed: %d\n", + __func__, res); + } + set_bit(index, &port->read_urbs_free); + return res; + } + + return 0; +} + +int usb_serial_generic_submit_read_urbs(struct usb_serial_port *port, gfp_t mem_flags) { - int result; + int res; + int i; - result = usb_submit_urb(port->read_urb, mem_flags); - if (result && result != -EPERM) { - dev_err(&port->dev, "%s - error submitting urb: %d\n", - __func__, result); + dbg("%s - port %d", __func__, port->number); + + for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) { + res = usb_serial_generic_submit_read_urb(port, i, mem_flags); + if (res) + goto err; } - return result; + + return 0; +err: + for (; i >= 0; --i) + usb_kill_urb(port->read_urbs[i]); + + return res; } -EXPORT_SYMBOL_GPL(usb_serial_generic_submit_read_urb); +EXPORT_SYMBOL_GPL(usb_serial_generic_submit_read_urbs); void usb_serial_generic_process_read_urb(struct urb *urb) { @@ -356,14 +391,19 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; unsigned char *data = urb->transfer_buffer; - int status = urb->status; unsigned long flags; + int i; - dbg("%s - port %d", __func__, port->number); + for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) { + if (urb == port->read_urbs[i]) + break; + } + set_bit(i, &port->read_urbs_free); - if (unlikely(status != 0)) { - dbg("%s - nonzero read bulk status received: %d", - __func__, status); + dbg("%s - port %d, urb %d, len %d\n", __func__, port->number, i, + urb->actual_length); + if (urb->status) { + dbg("%s - non-zero urb status: %d\n", __func__, urb->status); return; } @@ -376,7 +416,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb) port->throttled = port->throttle_req; if (!port->throttled) { spin_unlock_irqrestore(&port->lock, flags); - usb_serial_generic_submit_read_urb(port, GFP_ATOMIC); + usb_serial_generic_submit_read_urb(port, i, GFP_ATOMIC); } else spin_unlock_irqrestore(&port->lock, flags); } @@ -443,7 +483,7 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty) spin_unlock_irq(&port->lock); if (was_throttled) - usb_serial_generic_submit_read_urb(port, GFP_KERNEL); + usb_serial_generic_submit_read_urbs(port, GFP_KERNEL); } EXPORT_SYMBOL_GPL(usb_serial_generic_unthrottle); @@ -509,8 +549,9 @@ int usb_serial_generic_resume(struct usb_serial *serial) if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) continue; - if (port->read_urb) { - r = usb_submit_urb(port->read_urb, GFP_NOIO); + if (port->bulk_in_size) { + r = usb_serial_generic_submit_read_urbs(port, + GFP_NOIO); if (r < 0) c++; } diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 2ee807523f53..abd2ee2b2f99 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -610,7 +610,6 @@ static void edge_interrupt_callback(struct urb *urb) /* we have pending bytes on the bulk in pipe, send a request */ - edge_serial->read_urb->dev = edge_serial->serial->dev; result = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC); if (result) { dev_err(&edge_serial->serial->dev->dev, "%s - usb_submit_urb(read bulk) failed with result = %d\n", __func__, result); @@ -711,7 +710,6 @@ static void edge_bulk_in_callback(struct urb *urb) /* check to see if there's any more data for us to read */ if (edge_serial->rxBytesAvail > 0) { dbg("%s - posting a read", __func__); - edge_serial->read_urb->dev = edge_serial->serial->dev; retval = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC); if (retval) { dev_err(&urb->dev->dev, @@ -1330,7 +1328,6 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, edge_port->txCredits -= count; edge_port->icount.tx += count; - urb->dev = edge_serial->serial->dev; status = usb_submit_urb(urb, GFP_ATOMIC); if (status) { /* something went wrong */ diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 0aac00afb5c8..e44d375edaad 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -15,13 +15,6 @@ * For questions or problems with this driver, contact Inside Out * Networks technical support, or Peter Berger <pberger@brimson.com>, * or Al Borchers <alborchers@steinerpoint.com>. - * - * Version history: - * - * July 11, 2002 Removed 4 port device structure since all TI UMP - * chips have only 2 ports - * David Iacovelli (davidi@ionetworks.com) - * */ #include <linux/kernel.h> @@ -1777,12 +1770,11 @@ static void edge_bulk_in_callback(struct urb *urb) exit: /* continue read unless stopped */ spin_lock(&edge_port->ep_lock); - if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) { - urb->dev = edge_port->port->serial->dev; + if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) retval = usb_submit_urb(urb, GFP_ATOMIC); - } else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) { + else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; - } + spin_unlock(&edge_port->ep_lock); if (retval) dev_err(&urb->dev->dev, @@ -1959,9 +1951,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) status = -EINVAL; goto release_es_lock; } - urb->complete = edge_interrupt_callback; urb->context = edge_serial; - urb->dev = dev; status = usb_submit_urb(urb, GFP_KERNEL); if (status) { dev_err(&port->dev, @@ -1987,9 +1977,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) goto unlink_int_urb; } edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; - urb->complete = edge_bulk_in_callback; urb->context = edge_port; - urb->dev = dev; status = usb_submit_urb(urb, GFP_KERNEL); if (status) { dev_err(&port->dev, @@ -2118,12 +2106,7 @@ static void edge_send(struct tty_struct *tty) port->write_urb->transfer_buffer); /* set up our urb */ - usb_fill_bulk_urb(port->write_urb, port->serial->dev, - usb_sndbulkpipe(port->serial->dev, - port->bulk_out_endpointAddress), - port->write_urb->transfer_buffer, count, - edge_bulk_out_callback, - port); + port->write_urb->transfer_buffer_length = count; /* send the data out the bulk port */ result = usb_submit_urb(port->write_urb, GFP_ATOMIC); @@ -2267,9 +2250,6 @@ static int restart_read(struct edgeport_port *edge_port) if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { urb = edge_port->port->read_urb; - urb->complete = edge_bulk_in_callback; - urb->context = edge_port; - urb->dev = edge_port->port->serial->dev; status = usb_submit_urb(urb, GFP_ATOMIC); } edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 4735931b4c7b..36f5cbe90485 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -8,40 +8,6 @@ * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * - * (12/12/2002) ganesh - * Added support for practically all devices supported by ActiveSync - * on Windows. Thanks to Wes Cilldhaire <billybobjoehenrybob@hotmail.com>. - * - * (26/11/2002) ganesh - * Added insmod options to specify product and vendor id. - * Use modprobe ipaq vendor=0xfoo product=0xbar - * - * (26/7/2002) ganesh - * Fixed up broken error handling in ipaq_open. Retry the "kickstart" - * packet much harder - this drastically reduces connection failures. - * - * (30/4/2002) ganesh - * Added support for the Casio EM500. Completely untested. Thanks - * to info from Nathan <wfilardo@fuse.net> - * - * (19/3/2002) ganesh - * Don't submit urbs while holding spinlocks. Not strictly necessary - * in 2.5.x. - * - * (8/3/2002) ganesh - * The ipaq sometimes emits a '\0' before the CLIENT string. At this - * point of time, the ppp ldisc is not yet attached to the tty, so - * n_tty echoes "^ " to the ipaq, which messes up the chat. In 2.5.6-pre2 - * this causes a panic because echo_char() tries to sleep in interrupt - * context. - * The fix is to tell the upper layers that this is a raw device so that - * echoing is suppressed. Thanks to Lyle Lindholm for a detailed bug - * report. - * - * (25/2/2002) ganesh - * Added support for the HP Jornada 548 and 568. Completely untested. - * Thanks to info from Heath Robinson and Arieh Davidoff. */ #include <linux/kernel.h> diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index ccbce4066d04..0c537da0d3cd 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -22,38 +22,6 @@ * * See Documentation/usb/usb-serial.txt for more information on using this * driver - * - * 2008_Jun_02 Felipe Balbi <me@felipebalbi.com> - * Introduced common header to be used also in USB Gadget Framework. - * Still needs some other style fixes. - * - * 2007_Jun_21 Alan Cox <alan@lxorguk.ukuu.org.uk> - * Minimal cleanups for some of the driver problens and tty layer abuse. - * Still needs fixing to allow multiple dongles. - * - * 2002_Mar_07 greg kh - * moved some needed structures and #define values from the - * net/irda/irda-usb.h file into our file, as we don't want to depend on - * that codebase compiling correctly :) - * - * 2002_Jan_14 gb - * Added module parameter to force specific number of XBOFs. - * Added ir_xbof_change(). - * Reorganized read_bulk_callback error handling. - * Switched from FILL_BULK_URB() to usb_fill_bulk_urb(). - * - * 2001_Nov_08 greg kh - * Changed the irda_usb_find_class_desc() function based on comments and - * code from Martin Diehl. - * - * 2001_Nov_01 greg kh - * Added support for more IrDA USB devices. - * Added support for zero packet. Added buffer override paramater, so - * users can transfer larger packets at once if they wish. Both patches - * came from Dag Brattli <dag@obexcode.com>. - * - * 2001_Oct_07 greg kh - * initial version released. */ #include <linux/kernel.h> diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 6aca631a407a..64d0ffd4440b 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -1168,15 +1168,14 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port) port->write_urb->transfer_buffer, 1, read_rxcmd_callback, port); result = usb_submit_urb(port->write_urb, GFP_KERNEL); - if (result) { dev_err(&port->dev, "%s - failed submitting read urb," " error %d\n", __func__, result); iuu_close(port); - return -EPROTO; } else { dbg("%s - rxcmd OK", __func__); } + return result; } diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index a442352d7b61..bc8dc203e818 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -25,73 +25,6 @@ Tip 'o the hat to IBM (and previously Linuxcare :) for supporting staff in their work on open source projects. - - Change History - - 2003sep04 LPM (Keyspan) add support for new single port product USA19HS. - Improve setup message handling for all devices. - - Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>) - Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4) - Linux source tree. The Linux tree lacked support for the 49WLC and - others. The Keyspan patches didn't work with the current kernel. - - 2003jan30 LPM add support for the 49WLC and MPR - - Wed Apr 25 12:00:00 PST 2002 (Keyspan) - Started with Hugh Blemings' code dated Jan 17, 2002. All adapters - now supported (including QI and QW). Modified port open, port - close, and send setup() logic to fix various data and endpoint - synchronization bugs and device LED status bugs. Changed keyspan_ - write_room() to accurately return transmit buffer availability. - Changed forwardingLength from 1 to 16 for all adapters. - - Fri Oct 12 16:45:00 EST 2001 - Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV) - - Wed Apr 25 12:00:00 PST 2002 (Keyspan) - Started with Hugh Blemings' code dated Jan 17, 2002. All adapters - now supported (including QI and QW). Modified port open, port - close, and send setup() logic to fix various data and endpoint - synchronization bugs and device LED status bugs. Changed keyspan_ - write_room() to accurately return transmit buffer availability. - Changed forwardingLength from 1 to 16 for all adapters. - - Fri Oct 12 16:45:00 EST 2001 - Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV) - - Mon Oct 8 14:29:00 EST 2001 hugh - Fixed bug that prevented mulitport devices operating correctly - if they weren't the first unit attached. - - Sat Oct 6 12:31:21 EST 2001 hugh - Added support for USA-28XA and -28XB, misc cleanups, break support - for usa26 based models thanks to David Gibson. - - Thu May 31 11:56:42 PDT 2001 gkh - switched from using spinlock to a semaphore - - (04/08/2001) gb - Identify version on module load. - - (11/01/2000) Adam J. Richter - usb_device_id table support. - - Tue Oct 10 23:15:33 EST 2000 Hugh - Merged Paul's changes with my USA-49W mods. Work in progress - still... - - Wed Jul 19 14:00:42 EST 2000 gkh - Added module_init and module_exit functions to handle the fact that - this driver is a loadable module now. - - Tue Jul 18 16:14:52 EST 2000 Hugh - Basic character input/output for USA-19 now mostly works, - fixed at 9600 baud for the moment. - - Sat Jul 8 11:11:48 EST 2000 Hugh - First public release - nothing works except the firmware upload. - Tested on PPC and x86 architectures, seems to behave... */ @@ -397,7 +330,6 @@ static int keyspan_write(struct tty_struct *tty, /* send the data out the bulk port */ this_urb->transfer_buffer_length = todo + dataOffset; - this_urb->dev = port->serial->dev; err = usb_submit_urb(this_urb, GFP_ATOMIC); if (err != 0) dbg("usb_submit_urb(write bulk) failed (%d)", err); @@ -463,7 +395,6 @@ static void usa26_indat_callback(struct urb *urb) tty_kref_put(tty); /* Resubmit urb so we continue receiving */ - urb->dev = port->serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -559,7 +490,6 @@ static void usa26_instat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -609,7 +539,6 @@ static void usa28_indat_callback(struct urb *urb) tty_kref_put(tty); /* Resubmit urb so we continue receiving */ - urb->dev = port->serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", @@ -694,7 +623,6 @@ static void usa28_instat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -789,8 +717,6 @@ static void usa49_instat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - urb->dev = serial->dev; - err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -848,7 +774,6 @@ static void usa49_indat_callback(struct urb *urb) tty_kref_put(tty); /* Resubmit urb so we continue receiving */ - urb->dev = port->serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -919,8 +844,6 @@ static void usa49wg_indat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - urb->dev = serial->dev; - err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -996,7 +919,6 @@ static void usa90_indat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - urb->dev = port->serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -1047,7 +969,6 @@ static void usa90_instat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -1123,7 +1044,6 @@ static void usa67_instat_callback(struct urb *urb) } /* Resubmit urb so we continue receiving */ - urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err != 0) dbg("%s - resubmit read urb failed. (%d)", __func__, err); @@ -1223,7 +1143,6 @@ static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port) urb = p_priv->in_urbs[i]; if (urb == NULL) continue; - urb->dev = serial->dev; /* make sure endpoint data toggle is synchronized with the device */ @@ -1239,7 +1158,6 @@ static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port) urb = p_priv->out_urbs[i]; if (urb == NULL) continue; - urb->dev = serial->dev; /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */ } @@ -1956,7 +1874,6 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial, /* send the data out the device on control endpoint */ this_urb->transfer_buffer_length = sizeof(msg); - this_urb->dev = serial->dev; err = usb_submit_urb(this_urb, GFP_ATOMIC); if (err != 0) dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err); @@ -2084,7 +2001,6 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial, /* send the data out the device on control endpoint */ this_urb->transfer_buffer_length = sizeof(msg); - this_urb->dev = serial->dev; err = usb_submit_urb(this_urb, GFP_ATOMIC); if (err != 0) dbg("%s - usb_submit_urb(setup) failed", __func__); @@ -2271,8 +2187,6 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial, /* send the data out the device on control endpoint */ this_urb->transfer_buffer_length = sizeof(msg); - - this_urb->dev = serial->dev; } err = usb_submit_urb(this_urb, GFP_ATOMIC); if (err != 0) @@ -2415,7 +2329,6 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial, /* send the data out the device on control endpoint */ this_urb->transfer_buffer_length = sizeof(msg); - this_urb->dev = serial->dev; err = usb_submit_urb(this_urb, GFP_ATOMIC); if (err != 0) dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err); @@ -2561,7 +2474,6 @@ static int keyspan_usa67_send_setup(struct usb_serial *serial, /* send the data out the device on control endpoint */ this_urb->transfer_buffer_length = sizeof(msg); - this_urb->dev = serial->dev; err = usb_submit_urb(this_urb, GFP_ATOMIC); if (err != 0) @@ -2650,14 +2562,12 @@ static int keyspan_startup(struct usb_serial *serial) keyspan_setup_urbs(serial); if (s_priv->instat_urb != NULL) { - s_priv->instat_urb->dev = serial->dev; err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL); if (err != 0) dbg("%s - submit instat urb failed %d", __func__, err); } if (s_priv->indat_urb != NULL) { - s_priv->indat_urb->dev = serial->dev; err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL); if (err != 0) dbg("%s - submit indat urb failed %d", __func__, diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index d5c0c6ab4966..a40615674a68 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -12,59 +12,6 @@ * * See Documentation/usb/usb-serial.txt for more information on using this * driver - * - * (09/07/2001) gkh - * cleaned up the Xircom support. Added ids for Entregra device which is - * the same as the Xircom device. Enabled the code to be compiled for - * either Xircom or Keyspan devices. - * - * (08/11/2001) Cristian M. Craciunescu - * support for Xircom PGSDB9 - * - * (05/31/2001) gkh - * switched from using spinlock to a semaphore, which fixes lots of - * problems. - * - * (04/08/2001) gb - * Identify version on module load. - * - * (11/01/2000) Adam J. Richter - * usb_device_id table support - * - * (10/05/2000) gkh - * Fixed bug with urb->dev not being set properly, now that the usb - * core needs it. - * - * (08/28/2000) gkh - * Added locks for SMP safeness. - * Fixed MOD_INC and MOD_DEC logic and the ability to open a port more - * than once. - * - * (07/20/2000) borchers - * - keyspan_pda_write no longer sleeps if it is called on interrupt time; - * PPP and the line discipline with stty echo on can call write on - * interrupt time and this would cause an oops if write slept - * - if keyspan_pda_write is in an interrupt, it will not call - * usb_control_msg (which sleeps) to query the room in the device - * buffer, it simply uses the current room value it has - * - if the urb is busy or if it is throttled keyspan_pda_write just - * returns 0, rather than sleeping to wait for this to change; the - * write_chan code in n_tty.c will sleep if needed before calling - * keyspan_pda_write again - * - if the device needs to be unthrottled, write now queues up the - * call to usb_control_msg (which sleeps) to unthrottle the device - * - the wakeups from keyspan_pda_write_bulk_callback are queued rather - * than done directly from the callback to avoid the race in write_chan - * - keyspan_pda_chars_in_buffer also indicates its buffer is full if the - * urb status is -EINPROGRESS, meaning it cannot write at the moment - * - * (07/19/2000) gkh - * Added module_init and module_exit functions to handle the fact that this - * driver is a loadable module now. - * - * (03/26/2000) gkh - * Split driver up into device specific pieces. - * */ @@ -290,7 +237,6 @@ static void keyspan_pda_rx_unthrottle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; /* just restart the receive interrupt URB */ dbg("keyspan_pda_rx_unthrottle port %d", port->number); - port->interrupt_in_urb->dev = port->serial->dev; if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL)) dbg(" usb_submit_urb(read urb) failed"); } @@ -532,11 +478,11 @@ static int keyspan_pda_write(struct tty_struct *tty, the device is full (wait until it says there is room) */ spin_lock_bh(&port->lock); - if (port->write_urb_busy || priv->tx_throttled) { + if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled) { spin_unlock_bh(&port->lock); return 0; } - port->write_urb_busy = 1; + clear_bit(0, &port->write_urbs_free); spin_unlock_bh(&port->lock); /* At this point the URB is in our control, nobody else can submit it @@ -598,7 +544,6 @@ static int keyspan_pda_write(struct tty_struct *tty, priv->tx_room -= count; - port->write_urb->dev = port->serial->dev; rc = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (rc) { dbg(" usb_submit_urb(write bulk) failed"); @@ -618,7 +563,7 @@ static int keyspan_pda_write(struct tty_struct *tty, rc = count; exit: if (rc < 0) - port->write_urb_busy = 0; + set_bit(0, &port->write_urbs_free); return rc; } @@ -628,7 +573,7 @@ static void keyspan_pda_write_bulk_callback(struct urb *urb) struct usb_serial_port *port = urb->context; struct keyspan_pda_private *priv; - port->write_urb_busy = 0; + set_bit(0, &port->write_urbs_free); priv = usb_get_serial_port_data(port); /* queue up a wakeup at scheduler time */ @@ -661,7 +606,7 @@ static int keyspan_pda_chars_in_buffer(struct tty_struct *tty) n_tty.c:normal_poll() ) that we're not writeable. */ spin_lock_irqsave(&port->lock, flags); - if (port->write_urb_busy || priv->tx_throttled) + if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled) ret = 256; spin_unlock_irqrestore(&port->lock, flags); return ret; @@ -717,7 +662,6 @@ static int keyspan_pda_open(struct tty_struct *tty, priv->tx_throttled = *room ? 0 : 1; /*Start reading from the device*/ - port->interrupt_in_urb->dev = serial->dev; rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (rc) { dbg("%s - usb_submit_urb(read int) failed", __func__); diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index ddd146300ddb..5d3beeeb5fd9 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -20,18 +20,6 @@ * * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus * (Adapter K), B1 Professional and KAAN Professional (Adapter B) - * - * (21/05/2004) tw - * Fix bug with P'n'P readers - * - * (28/05/2003) tw - * Add support for KAAN SIM - * - * (12/09/2002) tw - * Adapted to 2.5. - * - * (11/08/2002) tw - * Initial version. */ @@ -231,9 +219,6 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port) dbg("%s - port %d", __func__, port->number); priv = usb_get_serial_port_data(port); - /* someone sets the dev to 0 if the close method has been called */ - port->interrupt_in_urb->dev = port->serial->dev; - /* allocate memory for transfer buffer */ transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL); if (!transfer_buffer) @@ -393,8 +378,6 @@ static void kobil_read_int_callback(struct urb *urb) tty_flip_buffer_push(tty); } tty_kref_put(tty); - /* someone sets the dev to 0 if the close method has been called */ - port->interrupt_in_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); dbg("%s - port %d Send read URB returns: %i", @@ -475,17 +458,9 @@ static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port, priv->filled = 0; priv->cur_pos = 0; - /* someone sets the dev to 0 if the close method - has been called */ - port->interrupt_in_urb->dev = port->serial->dev; - /* start reading (except TWIN and KAAN SIM) */ if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { - /* someone sets the dev to 0 if the close method has - been called */ - port->interrupt_in_urb->dev = port->serial->dev; - result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO); dbg("%s - port %d Send read URB returns: %i", diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index ba0d28727ccb..a975bb80303f 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -19,50 +19,6 @@ * DTR/RTS signal handling may be incomplete or incorrect. I have mainly * implemented what I have seen with SniffUSB or found in belkin_sa.c. * For further TODOs check also belkin_sa.c. - * - * TEST STATUS: - * Basic tests have been performed with minicom/zmodem transfers and - * modem dialing under Linux 2.4.0-test10 (for me it works fine). - * - * 04-Nov-2003 Bill Marr <marr at flex dot com> - * - Mimic Windows driver by sending 2 USB 'device request' messages - * following normal 'baud rate change' message. This allows data to be - * transmitted to RS-232 devices which don't assert the 'CTS' signal. - * - * 10-Nov-2001 Wolfgang Grandegger - * - Fixed an endianess problem with the baudrate selection for PowerPC. - * - * 06-Dec-2001 Martin Hamilton <martinh@gnu.org> - * - Added support for the Belkin F5U109 DB9 adaptor - * - * 30-May-2001 Greg Kroah-Hartman - * - switched from using spinlock to a semaphore, which fixes lots of - * problems. - * - * 04-May-2001 Stelian Pop - * - Set the maximum bulk output size for Sitecom U232-P25 model to 16 bytes - * instead of the device reported 32 (using 32 bytes causes many data - * loss, Windows driver uses 16 too). - * - * 02-May-2001 Stelian Pop - * - Fixed the baud calculation for Sitecom U232-P25 model - * - * 08-Apr-2001 gb - * - Identify version on module load. - * - * 06-Jan-2001 Cornel Ciocirlan - * - Added support for Sitecom U232-P25 model (Product Id 0x0230) - * - Added support for D-Link DU-H3SP USB BAY (Product Id 0x0200) - * - * 29-Nov-2000 Greg Kroah-Hartman - * - Added device id table to fit with 2.4.0-test11 structure. - * - took out DEAL_WITH_TWO_INT_IN_ENDPOINTS #define as it's not needed - * (lots of things will change if/when the usb-serial core changes to - * handle these issues. - * - * 27-Nov-2000 Wolfgang Grandegge - * A version for kernel 2.4.0-test10 released to the Linux community - * (via linux-usb-devel). */ #include <linux/kernel.h> @@ -526,7 +482,6 @@ static int mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port) mct_u232_msr_to_state(&priv->control_state, priv->last_msr); spin_unlock_irqrestore(&priv->lock, flags); - port->read_urb->dev = port->serial->dev; retval = usb_submit_urb(port->read_urb, GFP_KERNEL); if (retval) { dev_err(&port->dev, @@ -535,7 +490,6 @@ static int mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port) goto error; } - port->interrupt_in_urb->dev = port->serial->dev; retval = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (retval) { usb_kill_urb(port->read_urb); diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 3524a105d042..19d112f51b97 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -939,14 +939,7 @@ static void mos7720_bulk_in_callback(struct urb *urb) } tty_kref_put(tty); - if (!port->read_urb) { - dbg("URB KILLED !!!"); - return; - } - if (port->read_urb->status != -EINPROGRESS) { - port->read_urb->dev = port->serial->dev; - retval = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (retval) dbg("usb_submit_urb(read bulk) failed, retval = %d", @@ -1014,7 +1007,6 @@ static int mos77xx_calc_num_ports(struct usb_serial *serial) static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port) { struct usb_serial *serial; - struct usb_serial_port *port0; struct urb *urb; struct moschip_port *mos7720_port; int response; @@ -1029,8 +1021,6 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port) if (mos7720_port == NULL) return -ENODEV; - port0 = serial->port[0]; - usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); @@ -1735,8 +1725,6 @@ static void change_port_settings(struct tty_struct *tty, write_mos_reg(serial, port_number, IER, 0x0c); if (port->read_urb->status != -EINPROGRESS) { - port->read_urb->dev = serial->dev; - status = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (status) dbg("usb_submit_urb(read bulk) failed, status = %d", @@ -1786,13 +1774,7 @@ static void mos7720_set_termios(struct tty_struct *tty, /* change the port settings to the new ones specified */ change_port_settings(tty, mos7720_port, old_termios); - if (!port->read_urb) { - dbg("%s", "URB KILLED !!!!!"); - return; - } - if (port->read_urb->status != -EINPROGRESS) { - port->read_urb->dev = serial->dev; status = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (status) dbg("usb_submit_urb(read bulk) failed, status = %d", diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index c72abd524983..55cfd6265b98 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -792,8 +792,6 @@ static void mos7840_bulk_in_callback(struct urb *urb) } - mos7840_port->read_urb->dev = serial->dev; - mos7840_port->read_urb_busy = true; retval = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC); @@ -2058,7 +2056,6 @@ static void mos7840_change_port_settings(struct tty_struct *tty, mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data); if (mos7840_port->read_urb_busy == false) { - mos7840_port->read_urb->dev = serial->dev; mos7840_port->read_urb_busy = true; status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC); if (status) { @@ -2130,7 +2127,6 @@ static void mos7840_set_termios(struct tty_struct *tty, } if (mos7840_port->read_urb_busy == false) { - mos7840_port->read_urb->dev = serial->dev; mos7840_port->read_urb_busy = true; status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC); if (status) { diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 60f38d5e64fc..45a8c55881d3 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -9,31 +9,6 @@ * driver * * Please report both successes and troubles to the author at omninet@kroah.com - * - * (05/30/2001) gkh - * switched from using spinlock to a semaphore, which fixes lots of - * problems. - * - * (04/08/2001) gb - * Identify version on module load. - * - * (11/01/2000) Adam J. Richter - * usb_device_id table support - * - * (10/05/2000) gkh - * Fixed bug with urb->dev not being set properly, now that the usb - * core needs it. - * - * (08/28/2000) gkh - * Added locks for SMP safeness. - * Fixed MOD_INC and MOD_DEC logic and the ability to open a port more - * than once. - * Fixed potential race in omninet_write_bulk_callback - * - * (07/19/2000) gkh - * Added module_init and module_exit functions to handle the fact that this - * driver is a loadable module now. - * */ #include <linux/kernel.h> @@ -44,7 +19,6 @@ #include <linux/tty_driver.h> #include <linux/tty_flip.h> #include <linux/module.h> -#include <linux/spinlock.h> #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> @@ -174,12 +148,6 @@ static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port) tty_port_tty_set(&wport->port, tty); /* Start reading from the device */ - usb_fill_bulk_urb(port->read_urb, serial->dev, - usb_rcvbulkpipe(serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - omninet_read_bulk_callback, port); result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) dev_err(&port->dev, @@ -236,11 +204,6 @@ static void omninet_read_bulk_callback(struct urb *urb) } /* Continue trying to always read */ - usb_fill_bulk_urb(urb, port->serial->dev, - usb_rcvbulkpipe(port->serial->dev, - port->bulk_in_endpointAddress), - urb->transfer_buffer, urb->transfer_buffer_length, - omninet_read_bulk_callback, port); result = usb_submit_urb(urb, GFP_ATOMIC); if (result) dev_err(&port->dev, @@ -267,14 +230,10 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, return 0; } - spin_lock_bh(&wport->lock); - if (wport->write_urb_busy) { - spin_unlock_bh(&wport->lock); + if (!test_and_clear_bit(0, &port->write_urbs_free)) { dbg("%s - already writing", __func__); return 0; } - wport->write_urb_busy = 1; - spin_unlock_bh(&wport->lock); count = (count > OMNINET_BULKOUTSIZE) ? OMNINET_BULKOUTSIZE : count; @@ -292,10 +251,9 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, /* send the data out the bulk port, always 64 bytes */ wport->write_urb->transfer_buffer_length = 64; - wport->write_urb->dev = serial->dev; result = usb_submit_urb(wport->write_urb, GFP_ATOMIC); if (result) { - wport->write_urb_busy = 0; + set_bit(0, &wport->write_urbs_free); dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result); @@ -314,8 +272,7 @@ static int omninet_write_room(struct tty_struct *tty) int room = 0; /* Default: no room */ - /* FIXME: no consistent locking for write_urb_busy */ - if (wport->write_urb_busy) + if (test_bit(0, &wport->write_urbs_free)) room = wport->bulk_out_size - OMNINET_HEADERLEN; dbg("%s - returns %d", __func__, room); @@ -332,7 +289,7 @@ static void omninet_write_bulk_callback(struct urb *urb) dbg("%s - port %0x", __func__, port->number); - port->write_urb_busy = 0; + set_bit(0, &port->write_urbs_free); if (status) { dbg("%s - nonzero write bulk status received: %d", __func__, status); diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index c248a9147439..691f57a9d712 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -384,7 +384,6 @@ static void opticon_unthrottle(struct tty_struct *tty) priv->actually_throttled = false; spin_unlock_irqrestore(&priv->lock, flags); - priv->bulk_read_urb->dev = port->serial->dev; if (was_throttled) { result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC); if (result) diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index 4c29e6c2bda7..2161d1c3c089 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -264,7 +264,6 @@ static void setup_line(struct work_struct *work) spin_unlock_irqrestore(&priv->lock, flags); dbg("%s(): submitting interrupt urb", __func__); - port->interrupt_in_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" @@ -321,7 +320,6 @@ static void send_data(struct work_struct *work) priv->flags.write_urb_in_use = 0; dbg("%s(): submitting interrupt urb", __func__); - port->interrupt_in_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO); if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" @@ -334,7 +332,6 @@ static void send_data(struct work_struct *work) port->write_urb->transfer_buffer, count, &port->lock); port->write_urb->transfer_buffer_length = count; - port->write_urb->dev = port->serial->dev; result = usb_submit_urb(port->write_urb, GFP_NOIO); if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" @@ -583,13 +580,12 @@ static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port) kfree(buf); dbg("%s(): submitting interrupt urb", __func__); - port->interrupt_in_urb->dev = serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" " with error %d\n", __func__, result); oti6858_close(port); - return -EPROTO; + return result; } /* setup termios */ @@ -837,7 +833,6 @@ static void oti6858_read_int_callback(struct urb *urb) if (can_recv) { int result; - port->read_urb->dev = port->serial->dev; result = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (result != 0) { priv->flags.read_urb_in_use = 0; @@ -866,7 +861,6 @@ static void oti6858_read_int_callback(struct urb *urb) int result; /* dbg("%s(): submitting interrupt urb", __func__); */ - urb->dev = port->serial->dev; result = usb_submit_urb(urb, GFP_ATOMIC); if (result != 0) { dev_err(&urb->dev->dev, @@ -894,18 +888,6 @@ static void oti6858_read_bulk_callback(struct urb *urb) spin_unlock_irqrestore(&priv->lock, flags); if (status != 0) { - /* - if (status == -EPROTO) { - * PL2303 mysteriously fails with -EPROTO reschedule - the read * - dbg("%s - caught -EPROTO, resubmitting the urb", - __func__); - result = usb_submit_urb(urb, GFP_ATOMIC); - if (result) - dev_err(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n", __func__, result); - return; - } - */ dbg("%s(): unable to handle the error, exiting", __func__); return; } @@ -918,7 +900,6 @@ static void oti6858_read_bulk_callback(struct urb *urb) tty_kref_put(tty); /* schedule the interrupt urb */ - port->interrupt_in_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); if (result != 0 && result != -EPERM) { dev_err(&port->dev, "%s(): usb_submit_urb() failed," @@ -955,7 +936,6 @@ static void oti6858_write_bulk_callback(struct urb *urb) dbg("%s(): overflow in write", __func__); port->write_urb->transfer_buffer_length = 1; - port->write_urb->dev = port->serial->dev; result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) { dev_err(&port->dev, "%s(): usb_submit_urb() failed," @@ -968,7 +948,6 @@ static void oti6858_write_bulk_callback(struct urb *urb) priv->flags.write_urb_in_use = 0; /* schedule the interrupt urb if we are still open */ - port->interrupt_in_urb->dev = port->serial->dev; dbg("%s(): submitting interrupt urb", __func__); result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); if (result != 0) { diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index fc2d66f7f4eb..329295615d06 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -502,21 +502,20 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) if (tty) pl2303_set_termios(tty, port, &tmp_termios); - dbg("%s - submitting read urb", __func__); - result = usb_serial_generic_submit_read_urb(port, GFP_KERNEL); - if (result) { - pl2303_close(port); - return -EPROTO; - } - dbg("%s - submitting interrupt urb", __func__); result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result) { dev_err(&port->dev, "%s - failed submitting interrupt urb," " error %d\n", __func__, result); - pl2303_close(port); - return -EPROTO; + return result; } + + result = usb_serial_generic_open(tty, port); + if (result) { + usb_kill_urb(port->interrupt_in_urb); + return result; + } + port->port.drain_delay = 256; return 0; } diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index b18179bda0d8..f2485429172f 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -681,7 +681,6 @@ static void sierra_instat_callback(struct urb *urb) /* Resubmit urb so we continue receiving IRQ data */ if (status != -ESHUTDOWN && status != -ENOENT) { usb_mark_last_busy(serial->dev); - urb->dev = serial->dev; err = usb_submit_urb(urb, GFP_ATOMIC); if (err && err != -EPERM) dev_err(&port->dev, "%s: resubmit intr urb " diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c index 7096f799b071..c70cc012d03f 100644 --- a/drivers/usb/serial/symbolserial.c +++ b/drivers/usb/serial/symbolserial.c @@ -182,7 +182,6 @@ static void symbol_unthrottle(struct tty_struct *tty) priv->actually_throttled = false; spin_unlock_irq(&priv->lock); - priv->int_urb->dev = port->serial->dev; if (was_throttled) { result = usb_submit_urb(priv->int_urb, GFP_KERNEL); if (result) diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index ea8445689c85..4af21f46096e 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -535,9 +535,7 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) status = -EINVAL; goto release_lock; } - urb->complete = ti_interrupt_callback; urb->context = tdev; - urb->dev = dev; status = usb_submit_urb(urb, GFP_KERNEL); if (status) { dev_err(&port->dev, @@ -619,9 +617,7 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) goto unlink_int_urb; } tport->tp_read_urb_state = TI_READ_URB_RUNNING; - urb->complete = ti_bulk_in_callback; urb->context = tport; - urb->dev = dev; status = usb_submit_urb(urb, GFP_KERNEL); if (status) { dev_err(&port->dev, "%s - submit read urb failed, %d\n", @@ -1236,12 +1232,11 @@ static void ti_bulk_in_callback(struct urb *urb) exit: /* continue to read unless stopping */ spin_lock(&tport->tp_lock); - if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) { - urb->dev = port->serial->dev; + if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) retval = usb_submit_urb(urb, GFP_ATOMIC); - } else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) { + else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) tport->tp_read_urb_state = TI_READ_URB_STOPPED; - } + spin_unlock(&tport->tp_lock); if (retval) dev_err(dev, "%s - resubmit read urb failed, %d\n", @@ -1574,9 +1569,7 @@ static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) tport->tp_read_urb_state = TI_READ_URB_RUNNING; urb = tport->tp_port->read_urb; spin_unlock_irqrestore(&tport->tp_lock, flags); - urb->complete = ti_bulk_in_callback; urb->context = tport; - urb->dev = tport->tp_port->serial->dev; status = usb_submit_urb(urb, GFP_KERNEL); } else { tport->tp_read_urb_state = TI_READ_URB_RUNNING; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index cc274fdf2627..ce6c1a65a544 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -50,7 +50,7 @@ static struct usb_driver usb_serial_driver = { .disconnect = usb_serial_disconnect, .suspend = usb_serial_suspend, .resume = usb_serial_resume, - .no_dynamic_id = 1, + .no_dynamic_id = 1, .supports_autosuspend = 1, }; @@ -260,6 +260,10 @@ static int serial_activate(struct tty_port *tport, struct tty_struct *tty) else retval = port->serial->type->open(tty, port); mutex_unlock(&serial->disc_mutex); + + if (retval < 0) + retval = usb_translate_errors(retval); + return retval; } @@ -360,7 +364,8 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf, /* pass on to the driver specific version of this function */ retval = port->serial->type->write(tty, port, buf, count); - + if (retval < 0) + retval = usb_translate_errors(retval); exit: return retval; } @@ -562,8 +567,8 @@ static void kill_traffic(struct usb_serial_port *port) { int i; - usb_kill_urb(port->read_urb); - usb_kill_urb(port->write_urb); + for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) + usb_kill_urb(port->read_urbs[i]); for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) usb_kill_urb(port->write_urbs[i]); /* @@ -595,17 +600,17 @@ static void port_release(struct device *dev) kill_traffic(port); cancel_work_sync(&port->work); - usb_free_urb(port->read_urb); - usb_free_urb(port->write_urb); usb_free_urb(port->interrupt_in_urb); usb_free_urb(port->interrupt_out_urb); + for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) { + usb_free_urb(port->read_urbs[i]); + kfree(port->bulk_in_buffers[i]); + } for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) { usb_free_urb(port->write_urbs[i]); kfree(port->bulk_out_buffers[i]); } kfifo_free(&port->write_fifo); - kfree(port->bulk_in_buffer); - kfree(port->bulk_out_buffer); kfree(port->interrupt_in_buffer); kfree(port->interrupt_out_buffer); kfree(port); @@ -686,16 +691,18 @@ static int serial_carrier_raised(struct tty_port *port) { struct usb_serial_port *p = container_of(port, struct usb_serial_port, port); struct usb_serial_driver *drv = p->serial->type; + if (drv->carrier_raised) return drv->carrier_raised(p); /* No carrier control - don't block */ - return 1; + return 1; } static void serial_dtr_rts(struct tty_port *port, int on) { struct usb_serial_port *p = container_of(port, struct usb_serial_port, port); struct usb_serial_driver *drv = p->serial->type; + if (drv->dtr_rts) drv->dtr_rts(p, on); } @@ -724,6 +731,7 @@ int usb_serial_probe(struct usb_interface *interface, unsigned int minor; int buffer_size; int i; + int j; int num_interrupt_in = 0; int num_interrupt_out = 0; int num_bulk_in = 0; @@ -906,38 +914,41 @@ int usb_serial_probe(struct usb_interface *interface, for (i = 0; i < num_bulk_in; ++i) { endpoint = bulk_in_endpoint[i]; port = serial->port[i]; - port->read_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!port->read_urb) { - dev_err(&interface->dev, "No free urbs available\n"); - goto probe_error; - } buffer_size = max_t(int, serial->type->bulk_in_size, usb_endpoint_maxp(endpoint)); port->bulk_in_size = buffer_size; port->bulk_in_endpointAddress = endpoint->bEndpointAddress; - port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!port->bulk_in_buffer) { - dev_err(&interface->dev, + + for (j = 0; j < ARRAY_SIZE(port->read_urbs); ++j) { + set_bit(j, &port->read_urbs_free); + port->read_urbs[j] = usb_alloc_urb(0, GFP_KERNEL); + if (!port->read_urbs[j]) { + dev_err(&interface->dev, + "No free urbs available\n"); + goto probe_error; + } + port->bulk_in_buffers[j] = kmalloc(buffer_size, + GFP_KERNEL); + if (!port->bulk_in_buffers[j]) { + dev_err(&interface->dev, "Couldn't allocate bulk_in_buffer\n"); - goto probe_error; - } - usb_fill_bulk_urb(port->read_urb, dev, - usb_rcvbulkpipe(dev, + goto probe_error; + } + usb_fill_bulk_urb(port->read_urbs[j], dev, + usb_rcvbulkpipe(dev, endpoint->bEndpointAddress), - port->bulk_in_buffer, buffer_size, - serial->type->read_bulk_callback, port); + port->bulk_in_buffers[j], buffer_size, + serial->type->read_bulk_callback, + port); + } + + port->read_urb = port->read_urbs[0]; + port->bulk_in_buffer = port->bulk_in_buffers[0]; } for (i = 0; i < num_bulk_out; ++i) { - int j; - endpoint = bulk_out_endpoint[i]; port = serial->port[i]; - port->write_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!port->write_urb) { - dev_err(&interface->dev, "No free urbs available\n"); - goto probe_error; - } if (kfifo_alloc(&port->write_fifo, PAGE_SIZE, GFP_KERNEL)) goto probe_error; buffer_size = serial->type->bulk_out_size; @@ -945,17 +956,7 @@ int usb_serial_probe(struct usb_interface *interface, buffer_size = usb_endpoint_maxp(endpoint); port->bulk_out_size = buffer_size; port->bulk_out_endpointAddress = endpoint->bEndpointAddress; - port->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!port->bulk_out_buffer) { - dev_err(&interface->dev, - "Couldn't allocate bulk_out_buffer\n"); - goto probe_error; - } - usb_fill_bulk_urb(port->write_urb, dev, - usb_sndbulkpipe(dev, - endpoint->bEndpointAddress), - port->bulk_out_buffer, buffer_size, - serial->type->write_bulk_callback, port); + for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j) { set_bit(j, &port->write_urbs_free); port->write_urbs[j] = usb_alloc_urb(0, GFP_KERNEL); @@ -978,6 +979,9 @@ int usb_serial_probe(struct usb_interface *interface, serial->type->write_bulk_callback, port); } + + port->write_urb = port->write_urbs[0]; + port->bulk_out_buffer = port->bulk_out_buffers[0]; } if (serial->type->read_int_callback) { @@ -1196,7 +1200,7 @@ static const struct tty_operations serial_ops = { .open = serial_open, .close = serial_close, .write = serial_write, - .hangup = serial_hangup, + .hangup = serial_hangup, .write_room = serial_write_room, .ioctl = serial_ioctl, .set_termios = serial_set_termios, @@ -1206,9 +1210,9 @@ static const struct tty_operations serial_ops = { .chars_in_buffer = serial_chars_in_buffer, .tiocmget = serial_tiocmget, .tiocmset = serial_tiocmset, - .get_icount = serial_get_icount, - .cleanup = serial_cleanup, - .install = serial_install, + .get_icount = serial_get_icount, + .cleanup = serial_cleanup, + .install = serial_install, .proc_fops = &serial_proc_fops, }; @@ -1237,7 +1241,7 @@ static int __init usb_serial_init(void) usb_serial_tty_driver->owner = THIS_MODULE; usb_serial_tty_driver->driver_name = "usbserial"; - usb_serial_tty_driver->name = "ttyUSB"; + usb_serial_tty_driver->name = "ttyUSB"; usb_serial_tty_driver->major = SERIAL_TTY_MAJOR; usb_serial_tty_driver->minor_start = 0; usb_serial_tty_driver->type = TTY_DRIVER_TYPE_SERIAL; @@ -1336,7 +1340,6 @@ static void fixup_generic(struct usb_serial_driver *device) int usb_serial_register(struct usb_serial_driver *driver) { - /* must be called with BKL held */ int retval; if (usb_disabled()) @@ -1374,7 +1377,6 @@ EXPORT_SYMBOL_GPL(usb_serial_register); void usb_serial_deregister(struct usb_serial_driver *device) { - /* must be called with BKL held */ printk(KERN_INFO "USB Serial deregistering driver %s\n", device->description); mutex_lock(&table_lock); diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c index 95a82148ee81..9b632e753210 100644 --- a/drivers/usb/serial/usb_debug.c +++ b/drivers/usb/serial/usb_debug.c @@ -40,7 +40,7 @@ static struct usb_driver debug_driver = { .probe = usb_serial_probe, .disconnect = usb_serial_disconnect, .id_table = id_table, - .no_dynamic_id = 1, + .no_dynamic_id = 1, }; /* This HW really does not support a serial break, so one will be @@ -54,19 +54,18 @@ static void usb_debug_break_ctl(struct tty_struct *tty, int break_state) usb_serial_generic_write(tty, port, USB_DEBUG_BRK, USB_DEBUG_BRK_SIZE); } -static void usb_debug_read_bulk_callback(struct urb *urb) +static void usb_debug_process_read_urb(struct urb *urb) { struct usb_serial_port *port = urb->context; if (urb->actual_length == USB_DEBUG_BRK_SIZE && - memcmp(urb->transfer_buffer, USB_DEBUG_BRK, - USB_DEBUG_BRK_SIZE) == 0) { + memcmp(urb->transfer_buffer, USB_DEBUG_BRK, + USB_DEBUG_BRK_SIZE) == 0) { usb_serial_handle_break(port); - usb_serial_generic_submit_read_urb(port, GFP_ATOMIC); return; } - usb_serial_generic_read_bulk_callback(urb); + usb_serial_generic_process_read_urb(urb); } static struct usb_serial_driver debug_device = { @@ -79,7 +78,7 @@ static struct usb_serial_driver debug_device = { .num_ports = 1, .bulk_out_size = USB_DEBUG_MAX_PACKET_SIZE, .break_ctl = usb_debug_break_ctl, - .read_bulk_callback = usb_debug_read_bulk_callback, + .process_read_urb = usb_debug_process_read_urb, }; static int __init debug_init(void) diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 5b073bcc807b..11af903cb09f 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -14,57 +14,6 @@ * * See Documentation/usb/usb-serial.txt for more information on using this * driver - * - * (10/09/2002) Stuart MacDonald (stuartm@connecttech.com) - * Upgrade to full working driver - * - * (05/30/2001) gkh - * switched from using spinlock to a semaphore, which fixes lots of - * problems. - * - * (04/08/2001) gb - * Identify version on module load. - * - * 2001_Mar_19 gkh - * Fixed MOD_INC and MOD_DEC logic, the ability to open a port more - * than once, and the got the proper usb_device_id table entries so - * the driver works again. - * - * (11/01/2000) Adam J. Richter - * usb_device_id table support - * - * (10/05/2000) gkh - * Fixed bug with urb->dev not being set properly, now that the usb - * core needs it. - * - * (10/03/2000) smd - * firmware is improved to guard against crap sent to device - * firmware now replies CMD_FAILURE on bad things - * read_callback fix you provided for private info struct - * command_finished now indicates success or fail - * setup_port struct now packed to avoid gcc padding - * firmware uses 1 based port numbering, driver now handles that - * - * (09/11/2000) gkh - * Removed DEBUG #ifdefs with call to usb_serial_debug_data - * - * (07/19/2000) gkh - * Added module_init and module_exit functions to handle the fact that this - * driver is a loadable module now. - * Fixed bug with port->minor that was found by Al Borchers - * - * (07/04/2000) gkh - * Added support for port settings. Baud rate can now be changed. Line - * signals are not transferred to and from the tty layer yet, but things - * seem to be working well now. - * - * (05/04/2000) gkh - * First cut at open and close commands. Data can flow through the ports at - * default speeds now. - * - * (03/26/2000) gkh - * Split driver up into device specific pieces. - * */ #include <linux/kernel.h> @@ -753,7 +702,6 @@ static void whiteheat_close(struct usb_serial_port *port) static int whiteheat_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { - struct usb_serial *serial = port->serial; struct whiteheat_private *info = usb_get_serial_port_data(port); struct whiteheat_urb_wrap *wrap; struct urb *urb; @@ -789,7 +737,6 @@ static int whiteheat_write(struct tty_struct *tty, usb_serial_debug_data(debug, &port->dev, __func__, bytes, urb->transfer_buffer); - urb->dev = serial->dev; urb->transfer_buffer_length = bytes; result = usb_submit_urb(urb, GFP_ATOMIC); if (result) { @@ -1035,7 +982,6 @@ static void command_port_read_callback(struct urb *urb) dbg("%s - bad reply from firmware", __func__); /* Continue trying to always read */ - command_port->read_urb->dev = command_port->serial->dev; result = usb_submit_urb(command_port->read_urb, GFP_ATOMIC); if (result) dbg("%s - failed resubmitting read urb, error %d", @@ -1141,7 +1087,6 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command, transfer_buffer[0] = command; memcpy(&transfer_buffer[1], data, datasize); command_port->write_urb->transfer_buffer_length = datasize + 1; - command_port->write_urb->dev = port->serial->dev; retval = usb_submit_urb(command_port->write_urb, GFP_NOIO); if (retval) { dbg("%s - submit urb failed", __func__); @@ -1362,7 +1307,6 @@ static int start_command_port(struct usb_serial *serial) /* Work around HCD bugs */ usb_clear_halt(serial->dev, command_port->read_urb->pipe); - command_port->read_urb->dev = serial->dev; retval = usb_submit_urb(command_port->read_urb, GFP_KERNEL); if (retval) { dev_err(&serial->dev->dev, @@ -1410,7 +1354,6 @@ static int start_port_read(struct usb_serial_port *port) list_del(tmp); wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); urb = wrap->urb; - urb->dev = port->serial->dev; spin_unlock_irqrestore(&info->lock, flags); retval = usb_submit_urb(urb, GFP_KERNEL); if (retval) { @@ -1490,7 +1433,6 @@ static void rx_data_softint(struct work_struct *work) sent += tty_insert_flip_string(tty, urb->transfer_buffer, urb->actual_length); - urb->dev = port->serial->dev; result = usb_submit_urb(urb, GFP_ATOMIC); if (result) { dev_err(&port->dev, diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c index 42d0eaed4a01..9ce3bbab6d20 100644 --- a/drivers/usb/storage/alauda.c +++ b/drivers/usb/storage/alauda.c @@ -139,7 +139,7 @@ static int init_alauda(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id alauda_usb_ids[] = { +static struct usb_device_id alauda_usb_ids[] = { # include "unusual_alauda.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c index c84471821183..740bfe6b2d23 100644 --- a/drivers/usb/storage/cypress_atacb.c +++ b/drivers/usb/storage/cypress_atacb.c @@ -43,7 +43,7 @@ MODULE_LICENSE("GPL"); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id cypress_usb_ids[] = { +static struct usb_device_id cypress_usb_ids[] = { # include "unusual_cypress.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c index ded836b02d7b..0d8d97c94f09 100644 --- a/drivers/usb/storage/datafab.c +++ b/drivers/usb/storage/datafab.c @@ -88,7 +88,7 @@ static int datafab_determine_lun(struct us_data *us, { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id datafab_usb_ids[] = { +static struct usb_device_id datafab_usb_ids[] = { # include "unusual_datafab.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c index 9fbe742343c6..b990726f144a 100644 --- a/drivers/usb/storage/ene_ub6250.c +++ b/drivers/usb/storage/ene_ub6250.c @@ -42,7 +42,7 @@ MODULE_LICENSE("GPL"); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id ene_ub6250_usb_ids[] = { +static struct usb_device_id ene_ub6250_usb_ids[] = { # include "unusual_ene_ub6250.h" { } /* Terminating entry */ }; @@ -607,8 +607,8 @@ static int sd_scsi_mode_sense(struct us_data *us, struct scsi_cmnd *srb) static int sd_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb) { - u32 bl_num; - u16 bl_len; + u32 bl_num; + u32 bl_len; unsigned int offset = 0; unsigned char buf[8]; struct scatterlist *sg = NULL; @@ -622,7 +622,7 @@ static int sd_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb) else bl_num = (info->HC_C_SIZE + 1) * 1024 - 1; } else { - bl_len = 1<<(info->SD_READ_BL_LEN); + bl_len = 1 << (info->SD_READ_BL_LEN); bl_num = info->SD_Block_Mult * (info->SD_C_SIZE + 1) * (1 << (info->SD_C_SIZE_MULT + 2)) - 1; } @@ -777,7 +777,7 @@ static int ms_lib_free_logicalmap(struct us_data *us) return 0; } -int ms_lib_alloc_logicalmap(struct us_data *us) +static int ms_lib_alloc_logicalmap(struct us_data *us) { u32 i; struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra; @@ -2248,7 +2248,7 @@ static int sd_scsi_irp(struct us_data *us, struct scsi_cmnd *srb) /* * ms_scsi_irp() */ -int ms_scsi_irp(struct us_data *us, struct scsi_cmnd *srb) +static int ms_scsi_irp(struct us_data *us, struct scsi_cmnd *srb) { int result; struct ene_ub6250_info *info = (struct ene_ub6250_info *)us->extra; diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c index 6542ca40d505..8cf16f89c96c 100644 --- a/drivers/usb/storage/freecom.c +++ b/drivers/usb/storage/freecom.c @@ -119,7 +119,7 @@ static int init_freecom(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id freecom_usb_ids[] = { +static struct usb_device_id freecom_usb_ids[] = { # include "unusual_freecom.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c index ffc4193e9505..7b813036b485 100644 --- a/drivers/usb/storage/isd200.c +++ b/drivers/usb/storage/isd200.c @@ -76,7 +76,7 @@ static int isd200_Initialization(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id isd200_usb_ids[] = { +static struct usb_device_id isd200_usb_ids[] = { # include "unusual_isd200.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c index 6168596c5ac6..5ef55c7d73e1 100644 --- a/drivers/usb/storage/jumpshot.c +++ b/drivers/usb/storage/jumpshot.c @@ -71,7 +71,7 @@ MODULE_LICENSE("GPL"); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id jumpshot_usb_ids[] = { +static struct usb_device_id jumpshot_usb_ids[] = { # include "unusual_jumpshot.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c index ba1b78906880..fb5bfb00d797 100644 --- a/drivers/usb/storage/karma.c +++ b/drivers/usb/storage/karma.c @@ -59,7 +59,7 @@ static int rio_karma_init(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id karma_usb_ids[] = { +static struct usb_device_id karma_usb_ids[] = { # include "unusual_karma.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index 1943be5a2914..d29be3e81134 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -69,7 +69,7 @@ struct usb_onetouch { { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id onetouch_usb_ids[] = { +static struct usb_device_id onetouch_usb_ids[] = { # include "unusual_onetouch.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c index 0ce5f79197e7..71147679cb11 100644 --- a/drivers/usb/storage/realtek_cr.c +++ b/drivers/usb/storage/realtek_cr.c @@ -398,10 +398,9 @@ static int rts51x_write_mem(struct us_data *us, u16 addr, u8 *data, u16 len) u8 cmnd[12] = { 0 }; u8 *buf; - buf = kmalloc(len, GFP_NOIO); + buf = kmemdup(data, len, GFP_NOIO); if (buf == NULL) return USB_STOR_TRANSPORT_ERROR; - memcpy(buf, data, len); US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len); @@ -507,15 +506,14 @@ static int enable_oscillator(struct us_data *us) static int __do_config_autodelink(struct us_data *us, u8 *data, u16 len) { int retval; - u16 addr = 0xFE47; u8 cmnd[12] = {0}; - US_DEBUGP("%s, addr = 0x%x, len = %d\n", __FUNCTION__, addr, len); + US_DEBUGP("%s, addr = 0xfe47, len = %d\n", __FUNCTION__, len); cmnd[0] = 0xF0; cmnd[1] = 0x0E; - cmnd[2] = (u8)(addr >> 8); - cmnd[3] = (u8)addr; + cmnd[2] = 0xfe; + cmnd[3] = 0x47; cmnd[4] = (u8)(len >> 8); cmnd[5] = (u8)len; @@ -818,7 +816,7 @@ static inline int working_scsi(struct scsi_cmnd *srb) return 1; } -void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) +static void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) { struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra); static int card_first_show = 1; @@ -977,7 +975,7 @@ static void realtek_cr_destructor(void *extra) } #ifdef CONFIG_PM -int realtek_cr_suspend(struct usb_interface *iface, pm_message_t message) +static int realtek_cr_suspend(struct usb_interface *iface, pm_message_t message) { struct us_data *us = usb_get_intfdata(iface); diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c index bcb9a709d349..6ecbf44c7ecb 100644 --- a/drivers/usb/storage/sddr09.c +++ b/drivers/usb/storage/sddr09.c @@ -71,7 +71,7 @@ static int usb_stor_sddr09_init(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id sddr09_usb_ids[] = { +static struct usb_device_id sddr09_usb_ids[] = { # include "unusual_sddr09.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c index 44dfed7754ed..f2930441a2fa 100644 --- a/drivers/usb/storage/sddr55.c +++ b/drivers/usb/storage/sddr55.c @@ -48,7 +48,7 @@ MODULE_LICENSE("GPL"); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id sddr55_usb_ids[] = { +static struct usb_device_id sddr55_usb_ids[] = { # include "unusual_sddr55.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c index 0b00091d2ae9..7d642c8efed3 100644 --- a/drivers/usb/storage/shuttle_usbat.c +++ b/drivers/usb/storage/shuttle_usbat.c @@ -170,7 +170,7 @@ static int init_usbat_flash(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } -struct usb_device_id usbat_usb_ids[] = { +static struct usb_device_id usbat_usb_ids[] = { # include "unusual_usbat.h" { } /* Terminating entry */ }; diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c index 371f61733f05..fa810a83e830 100644 --- a/drivers/usb/wusbcore/security.c +++ b/drivers/usb/wusbcore/security.c @@ -354,7 +354,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, struct wusb_keydvt_in keydvt_in; struct wusb_keydvt_out keydvt_out; - hs = kzalloc(3*sizeof(hs[0]), GFP_KERNEL); + hs = kcalloc(3, sizeof(hs[0]), GFP_KERNEL); if (hs == NULL) { dev_err(dev, "can't allocate handshake data\n"); goto error_kzalloc; diff --git a/drivers/uwb/est.c b/drivers/uwb/est.c index de81ebf51784..86ed7e61e597 100644 --- a/drivers/uwb/est.c +++ b/drivers/uwb/est.c @@ -184,7 +184,7 @@ int uwb_est_create(void) uwb_est_size = 2; uwb_est_used = 0; - uwb_est = kzalloc(uwb_est_size * sizeof(uwb_est[0]), GFP_KERNEL); + uwb_est = kcalloc(uwb_est_size, sizeof(uwb_est[0]), GFP_KERNEL); if (uwb_est == NULL) return -ENOMEM; |
