diff options
Diffstat (limited to 'drivers/usb/gadget')
28 files changed, 1148 insertions, 184 deletions
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index 9f65324f9ae0..76023ce449a3 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -1686,7 +1686,7 @@ static irqreturn_t usba_udc_irq(int irq, void *devid) reset_all_endpoints(udc); if (udc->gadget.speed != USB_SPEED_UNKNOWN - && udc->driver->disconnect) { + && udc->driver && udc->driver->disconnect) { udc->gadget.speed = USB_SPEED_UNKNOWN; spin_unlock(&udc->lock); udc->driver->disconnect(&udc->gadget); diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index fab906429b80..042c66b71df8 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -21,6 +21,24 @@ #include <linux/usb/composite.h> #include <asm/unaligned.h> +#include "u_os_desc.h" + +/** + * struct usb_os_string - represents OS String to be reported by a gadget + * @bLength: total length of the entire descritor, always 0x12 + * @bDescriptorType: USB_DT_STRING + * @qwSignature: the OS String proper + * @bMS_VendorCode: code used by the host for subsequent requests + * @bPad: not used, must be zero + */ +struct usb_os_string { + __u8 bLength; + __u8 bDescriptorType; + __u8 qwSignature[OS_STRING_QW_SIGN_LEN]; + __u8 bMS_VendorCode; + __u8 bPad; +} __packed; + /* * The code in this file is utility code, used to build a gadget driver * from one or more "function" drivers, one or more "configuration" @@ -422,6 +440,7 @@ static int config_desc(struct usb_composite_dev *cdev, unsigned w_value) { struct usb_gadget *gadget = cdev->gadget; struct usb_configuration *c; + struct list_head *pos; u8 type = w_value >> 8; enum usb_device_speed speed = USB_SPEED_UNKNOWN; @@ -440,7 +459,20 @@ static int config_desc(struct usb_composite_dev *cdev, unsigned w_value) /* This is a lookup by config *INDEX* */ w_value &= 0xff; - list_for_each_entry(c, &cdev->configs, list) { + + pos = &cdev->configs; + c = cdev->os_desc_config; + if (c) + goto check_config; + + while ((pos = pos->next) != &cdev->configs) { + c = list_entry(pos, typeof(*c), list); + + /* skip OS Descriptors config which is handled separately */ + if (c == cdev->os_desc_config) + continue; + +check_config: /* ignore configs that won't work at this speed */ switch (speed) { case USB_SPEED_SUPER: @@ -634,6 +666,7 @@ static int set_config(struct usb_composite_dev *cdev, if (!c) goto done; + usb_gadget_set_state(gadget, USB_STATE_CONFIGURED); cdev->config = c; /* Initialize all interfaces by setting them to altsetting zero. */ @@ -960,6 +993,19 @@ static int get_string(struct usb_composite_dev *cdev, return s->bLength; } + if (cdev->use_os_string && language == 0 && id == OS_STRING_IDX) { + struct usb_os_string *b = buf; + b->bLength = sizeof(*b); + b->bDescriptorType = USB_DT_STRING; + compiletime_assert( + sizeof(b->qwSignature) == sizeof(cdev->qw_sign), + "qwSignature size must be equal to qw_sign"); + memcpy(&b->qwSignature, cdev->qw_sign, sizeof(b->qwSignature)); + b->bMS_VendorCode = cdev->b_vendor_code; + b->bPad = 0; + return sizeof(*b); + } + list_for_each_entry(uc, &cdev->gstrings, list) { struct usb_gadget_strings **sp; @@ -1206,6 +1252,158 @@ static void composite_setup_complete(struct usb_ep *ep, struct usb_request *req) req->status, req->actual, req->length); } +static int count_ext_compat(struct usb_configuration *c) +{ + int i, res; + + res = 0; + for (i = 0; i < c->next_interface_id; ++i) { + struct usb_function *f; + int j; + + f = c->interface[i]; + for (j = 0; j < f->os_desc_n; ++j) { + struct usb_os_desc *d; + + if (i != f->os_desc_table[j].if_id) + continue; + d = f->os_desc_table[j].os_desc; + if (d && d->ext_compat_id) + ++res; + } + } + BUG_ON(res > 255); + return res; +} + +static void fill_ext_compat(struct usb_configuration *c, u8 *buf) +{ + int i, count; + + count = 16; + for (i = 0; i < c->next_interface_id; ++i) { + struct usb_function *f; + int j; + + f = c->interface[i]; + for (j = 0; j < f->os_desc_n; ++j) { + struct usb_os_desc *d; + + if (i != f->os_desc_table[j].if_id) + continue; + d = f->os_desc_table[j].os_desc; + if (d && d->ext_compat_id) { + *buf++ = i; + *buf++ = 0x01; + memcpy(buf, d->ext_compat_id, 16); + buf += 22; + } else { + ++buf; + *buf = 0x01; + buf += 23; + } + count += 24; + if (count >= 4096) + return; + } + } +} + +static int count_ext_prop(struct usb_configuration *c, int interface) +{ + struct usb_function *f; + int j, res; + + res = 0; + + f = c->interface[interface]; + for (j = 0; j < f->os_desc_n; ++j) { + struct usb_os_desc *d; + + if (interface != f->os_desc_table[j].if_id) + continue; + d = f->os_desc_table[j].os_desc; + if (d && d->ext_compat_id) + return d->ext_prop_count; + } + return res; +} + +static int len_ext_prop(struct usb_configuration *c, int interface) +{ + struct usb_function *f; + struct usb_os_desc *d; + int j, res; + + res = 10; /* header length */ + f = c->interface[interface]; + for (j = 0; j < f->os_desc_n; ++j) { + if (interface != f->os_desc_table[j].if_id) + continue; + d = f->os_desc_table[j].os_desc; + if (d) + return min(res + d->ext_prop_len, 4096); + } + return res; +} + +static int fill_ext_prop(struct usb_configuration *c, int interface, u8 *buf) +{ + struct usb_function *f; + struct usb_os_desc *d; + struct usb_os_desc_ext_prop *ext_prop; + int j, count, n, ret; + u8 *start = buf; + + f = c->interface[interface]; + for (j = 0; j < f->os_desc_n; ++j) { + if (interface != f->os_desc_table[j].if_id) + continue; + d = f->os_desc_table[j].os_desc; + if (d) + list_for_each_entry(ext_prop, &d->ext_prop, entry) { + /* 4kB minus header length */ + n = buf - start; + if (n >= 4086) + return 0; + + count = ext_prop->data_len + + ext_prop->name_len + 14; + if (count > 4086 - n) + return -EINVAL; + usb_ext_prop_put_size(buf, count); + usb_ext_prop_put_type(buf, ext_prop->type); + ret = usb_ext_prop_put_name(buf, ext_prop->name, + ext_prop->name_len); + if (ret < 0) + return ret; + switch (ext_prop->type) { + case USB_EXT_PROP_UNICODE: + case USB_EXT_PROP_UNICODE_ENV: + case USB_EXT_PROP_UNICODE_LINK: + usb_ext_prop_put_unicode(buf, ret, + ext_prop->data, + ext_prop->data_len); + break; + case USB_EXT_PROP_BINARY: + usb_ext_prop_put_binary(buf, ret, + ext_prop->data, + ext_prop->data_len); + break; + case USB_EXT_PROP_LE32: + /* not implemented */ + case USB_EXT_PROP_BE32: + /* not implemented */ + default: + return -EINVAL; + } + buf += count; + } + } + + return 0; +} + /* * The setup() callback implements all the ep0 functionality that's * not handled lower down, in hardware or the hardware driver(like @@ -1415,6 +1613,91 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) break; default: unknown: + /* + * OS descriptors handling + */ + if (cdev->use_os_string && cdev->os_desc_config && + (ctrl->bRequest & USB_TYPE_VENDOR) && + ctrl->bRequest == cdev->b_vendor_code) { + struct usb_request *req; + struct usb_configuration *os_desc_cfg; + u8 *buf; + int interface; + int count = 0; + + req = cdev->os_desc_req; + req->complete = composite_setup_complete; + buf = req->buf; + os_desc_cfg = cdev->os_desc_config; + memset(buf, 0, w_length); + buf[5] = 0x01; + switch (ctrl->bRequestType & USB_RECIP_MASK) { + case USB_RECIP_DEVICE: + if (w_index != 0x4 || (w_value >> 8)) + break; + buf[6] = w_index; + if (w_length == 0x10) { + /* Number of ext compat interfaces */ + count = count_ext_compat(os_desc_cfg); + buf[8] = count; + count *= 24; /* 24 B/ext compat desc */ + count += 16; /* header */ + put_unaligned_le32(count, buf); + value = w_length; + } else { + /* "extended compatibility ID"s */ + count = count_ext_compat(os_desc_cfg); + buf[8] = count; + count *= 24; /* 24 B/ext compat desc */ + count += 16; /* header */ + put_unaligned_le32(count, buf); + buf += 16; + fill_ext_compat(os_desc_cfg, buf); + value = w_length; + } + break; + case USB_RECIP_INTERFACE: + if (w_index != 0x5 || (w_value >> 8)) + break; + interface = w_value & 0xFF; + buf[6] = w_index; + if (w_length == 0x0A) { + count = count_ext_prop(os_desc_cfg, + interface); + put_unaligned_le16(count, buf + 8); + count = len_ext_prop(os_desc_cfg, + interface); + put_unaligned_le32(count, buf); + + value = w_length; + } else { + count = count_ext_prop(os_desc_cfg, + interface); + put_unaligned_le16(count, buf + 8); + count = len_ext_prop(os_desc_cfg, + interface); + put_unaligned_le32(count, buf); + buf += 10; + value = fill_ext_prop(os_desc_cfg, + interface, buf); + if (value < 0) + return value; + + value = w_length; + } + break; + } + req->length = value; + req->zero = value < w_length; + value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); + if (value < 0) { + DBG(cdev, "ep_queue --> %d\n", value); + req->status = 0; + composite_setup_complete(gadget->ep0, req); + } + return value; + } + VDBG(cdev, "non-core control req%02x.%02x v%04x i%04x l%d\n", ctrl->bRequestType, ctrl->bRequest, @@ -1638,6 +1921,29 @@ fail: return ret; } +int composite_os_desc_req_prepare(struct usb_composite_dev *cdev, + struct usb_ep *ep0) +{ + int ret = 0; + + cdev->os_desc_req = usb_ep_alloc_request(ep0, GFP_KERNEL); + if (!cdev->os_desc_req) { + ret = PTR_ERR(cdev->os_desc_req); + goto end; + } + + /* OS feature descriptor length <= 4kB */ + cdev->os_desc_req->buf = kmalloc(4096, GFP_KERNEL); + if (!cdev->os_desc_req->buf) { + ret = PTR_ERR(cdev->os_desc_req->buf); + kfree(cdev->os_desc_req); + goto end; + } + cdev->os_desc_req->complete = composite_setup_complete; +end: + return ret; +} + void composite_dev_cleanup(struct usb_composite_dev *cdev) { struct usb_gadget_string_container *uc, *tmp; @@ -1646,6 +1952,10 @@ void composite_dev_cleanup(struct usb_composite_dev *cdev) list_del(&uc->list); kfree(uc); } + if (cdev->os_desc_req) { + kfree(cdev->os_desc_req->buf); + usb_ep_free_request(cdev->gadget->ep0, cdev->os_desc_req); + } if (cdev->req) { kfree(cdev->req->buf); usb_ep_free_request(cdev->gadget->ep0, cdev->req); @@ -1683,6 +1993,12 @@ static int composite_bind(struct usb_gadget *gadget, if (status < 0) goto fail; + if (cdev->use_os_string) { + status = composite_os_desc_req_prepare(cdev, gadget->ep0); + if (status) + goto fail; + } + update_unchanged_dev_desc(&cdev->desc, composite->dev); /* has userspace failed to provide a serial number? */ diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 7d1cc01796b6..2ddcd635ca2a 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -2,9 +2,12 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/device.h> +#include <linux/nls.h> #include <linux/usb/composite.h> #include <linux/usb/gadget_configfs.h> #include "configfs.h" +#include "u_f.h" +#include "u_os_desc.h" int check_user_usb_string(const char *name, struct usb_gadget_strings *stringtab_dev) @@ -43,7 +46,8 @@ struct gadget_info { struct config_group functions_group; struct config_group configs_group; struct config_group strings_group; - struct config_group *default_groups[4]; + struct config_group os_desc_group; + struct config_group *default_groups[5]; struct mutex lock; struct usb_gadget_strings *gstrings[MAX_USB_STRING_LANGS + 1]; @@ -56,6 +60,9 @@ struct gadget_info { #endif struct usb_composite_driver composite; struct usb_composite_dev cdev; + bool use_os_desc; + char b_vendor_code; + char qw_sign[OS_STRING_QW_SIGN_LEN]; }; struct config_usb_cfg { @@ -79,6 +86,10 @@ struct gadget_strings { struct list_head list; }; +struct os_desc { + struct config_group group; +}; + struct gadget_config_name { struct usb_gadget_strings stringtab_dev; struct usb_string strings; @@ -736,6 +747,525 @@ static void gadget_strings_attr_release(struct config_item *item) USB_CONFIG_STRING_RW_OPS(gadget_strings); USB_CONFIG_STRINGS_LANG(gadget_strings, gadget_info); +static inline struct os_desc *to_os_desc(struct config_item *item) +{ + return container_of(to_config_group(item), struct os_desc, group); +} + +CONFIGFS_ATTR_STRUCT(os_desc); +CONFIGFS_ATTR_OPS(os_desc); + +static ssize_t os_desc_use_show(struct os_desc *os_desc, char *page) +{ + struct gadget_info *gi; + + gi = to_gadget_info(os_desc->group.cg_item.ci_parent); + + return sprintf(page, "%d", gi->use_os_desc); +} + +static ssize_t os_desc_use_store(struct os_desc *os_desc, const char *page, + size_t len) +{ + struct gadget_info *gi; + int ret; + bool use; + + gi = to_gadget_info(os_desc->group.cg_item.ci_parent); + + mutex_lock(&gi->lock); + ret = strtobool(page, &use); + if (!ret) { + gi->use_os_desc = use; + ret = len; + } + mutex_unlock(&gi->lock); + + return ret; +} + +static struct os_desc_attribute os_desc_use = + __CONFIGFS_ATTR(use, S_IRUGO | S_IWUSR, + os_desc_use_show, + os_desc_use_store); + +static ssize_t os_desc_b_vendor_code_show(struct os_desc *os_desc, char *page) +{ + struct gadget_info *gi; + + gi = to_gadget_info(os_desc->group.cg_item.ci_parent); + + return sprintf(page, "%d", gi->b_vendor_code); +} + +static ssize_t os_desc_b_vendor_code_store(struct os_desc *os_desc, + const char *page, size_t len) +{ + struct gadget_info *gi; + int ret; + u8 b_vendor_code; + + gi = to_gadget_info(os_desc->group.cg_item.ci_parent); + + mutex_lock(&gi->lock); + ret = kstrtou8(page, 0, &b_vendor_code); + if (!ret) { + gi->b_vendor_code = b_vendor_code; + ret = len; + } + mutex_unlock(&gi->lock); + + return ret; +} + +static struct os_desc_attribute os_desc_b_vendor_code = + __CONFIGFS_ATTR(b_vendor_code, S_IRUGO | S_IWUSR, + os_desc_b_vendor_code_show, + os_desc_b_vendor_code_store); + +static ssize_t os_desc_qw_sign_show(struct os_desc *os_desc, char *page) +{ + struct gadget_info *gi; + + gi = to_gadget_info(os_desc->group.cg_item.ci_parent); + + memcpy(page, gi->qw_sign, OS_STRING_QW_SIGN_LEN); + + return OS_STRING_QW_SIGN_LEN; +} + +static ssize_t os_desc_qw_sign_store(struct os_desc *os_desc, const char *page, + size_t len) +{ + struct gadget_info *gi; + int res, l; + + gi = to_gadget_info(os_desc->group.cg_item.ci_parent); + l = min((int)len, OS_STRING_QW_SIGN_LEN >> 1); + if (page[l - 1] == '\n') + --l; + + mutex_lock(&gi->lock); + res = utf8s_to_utf16s(page, l, + UTF16_LITTLE_ENDIAN, (wchar_t *) gi->qw_sign, + OS_STRING_QW_SIGN_LEN); + if (res > 0) + res = len; + mutex_unlock(&gi->lock); + + return res; +} + +static struct os_desc_attribute os_desc_qw_sign = + __CONFIGFS_ATTR(qw_sign, S_IRUGO | S_IWUSR, + os_desc_qw_sign_show, + os_desc_qw_sign_store); + +static struct configfs_attribute *os_desc_attrs[] = { + &os_desc_use.attr, + &os_desc_b_vendor_code.attr, + &os_desc_qw_sign.attr, + NULL, +}; + +static void os_desc_attr_release(struct config_item *item) +{ + struct os_desc *os_desc = to_os_desc(item); + kfree(os_desc); +} + +static int os_desc_link(struct config_item *os_desc_ci, + struct config_item *usb_cfg_ci) +{ + struct gadget_info *gi = container_of(to_config_group(os_desc_ci), + struct gadget_info, os_desc_group); + struct usb_composite_dev *cdev = &gi->cdev; + struct config_usb_cfg *c_target = + container_of(to_config_group(usb_cfg_ci), + struct config_usb_cfg, group); + struct usb_configuration *c; + int ret; + + mutex_lock(&gi->lock); + list_for_each_entry(c, &cdev->configs, list) { + if (c == &c_target->c) + break; + } + if (c != &c_target->c) { + ret = -EINVAL; + goto out; + } + + if (cdev->os_desc_config) { + ret = -EBUSY; + goto out; + } + + cdev->os_desc_config = &c_target->c; + ret = 0; + +out: + mutex_unlock(&gi->lock); + return ret; +} + +static int os_desc_unlink(struct config_item *os_desc_ci, + struct config_item *usb_cfg_ci) +{ + struct gadget_info *gi = container_of(to_config_group(os_desc_ci), + struct gadget_info, os_desc_group); + struct usb_composite_dev *cdev = &gi->cdev; + + mutex_lock(&gi->lock); + if (gi->udc_name) + unregister_gadget(gi); + cdev->os_desc_config = NULL; + WARN_ON(gi->udc_name); + mutex_unlock(&gi->lock); + return 0; +} + +static struct configfs_item_operations os_desc_ops = { + .release = os_desc_attr_release, + .show_attribute = os_desc_attr_show, + .store_attribute = os_desc_attr_store, + .allow_link = os_desc_link, + .drop_link = os_desc_unlink, +}; + +static struct config_item_type os_desc_type = { + .ct_item_ops = &os_desc_ops, + .ct_attrs = os_desc_attrs, + .ct_owner = THIS_MODULE, +}; + +CONFIGFS_ATTR_STRUCT(usb_os_desc); +CONFIGFS_ATTR_OPS(usb_os_desc); + + +static inline struct usb_os_desc_ext_prop +*to_usb_os_desc_ext_prop(struct config_item *item) +{ + return container_of(item, struct usb_os_desc_ext_prop, item); +} + +CONFIGFS_ATTR_STRUCT(usb_os_desc_ext_prop); +CONFIGFS_ATTR_OPS(usb_os_desc_ext_prop); + +static ssize_t ext_prop_type_show(struct usb_os_desc_ext_prop *ext_prop, + char *page) +{ + return sprintf(page, "%d", ext_prop->type); +} + +static ssize_t ext_prop_type_store(struct usb_os_desc_ext_prop *ext_prop, + const char *page, size_t len) +{ + struct usb_os_desc *desc = to_usb_os_desc(ext_prop->item.ci_parent); + u8 type; + int ret; + + if (desc->opts_mutex) + mutex_lock(desc->opts_mutex); + ret = kstrtou8(page, 0, &type); + if (ret) + goto end; + if (type < USB_EXT_PROP_UNICODE || type > USB_EXT_PROP_UNICODE_MULTI) { + ret = -EINVAL; + goto end; + } + + if ((ext_prop->type == USB_EXT_PROP_BINARY || + ext_prop->type == USB_EXT_PROP_LE32 || + ext_prop->type == USB_EXT_PROP_BE32) && + (type == USB_EXT_PROP_UNICODE || + type == USB_EXT_PROP_UNICODE_ENV || + type == USB_EXT_PROP_UNICODE_LINK)) + ext_prop->data_len <<= 1; + else if ((ext_prop->type == USB_EXT_PROP_UNICODE || + ext_prop->type == USB_EXT_PROP_UNICODE_ENV || + ext_prop->type == USB_EXT_PROP_UNICODE_LINK) && + (type == USB_EXT_PROP_BINARY || + type == USB_EXT_PROP_LE32 || + type == USB_EXT_PROP_BE32)) + ext_prop->data_len >>= 1; + ext_prop->type = type; + ret = len; + +end: + if (desc->opts_mutex) + mutex_unlock(desc->opts_mutex); + return ret; +} + +static ssize_t ext_prop_data_show(struct usb_os_desc_ext_prop *ext_prop, + char *page) +{ + int len = ext_prop->data_len; + + if (ext_prop->type == USB_EXT_PROP_UNICODE || + ext_prop->type == USB_EXT_PROP_UNICODE_ENV || + ext_prop->type == USB_EXT_PROP_UNICODE_LINK) + len >>= 1; + memcpy(page, ext_prop->data, len); + + return len; +} + +static ssize_t ext_prop_data_store(struct usb_os_desc_ext_prop *ext_prop, + const char *page, size_t len) +{ + struct usb_os_desc *desc = to_usb_os_desc(ext_prop->item.ci_parent); + char *new_data; + size_t ret_len = len; + + if (page[len - 1] == '\n' || page[len - 1] == '\0') + --len; + new_data = kzalloc(len, GFP_KERNEL); + if (!new_data) + return -ENOMEM; + + memcpy(new_data, page, len); + + if (desc->opts_mutex) + mutex_lock(desc->opts_mutex); + kfree(ext_prop->data); + ext_prop->data = new_data; + desc->ext_prop_len -= ext_prop->data_len; + ext_prop->data_len = len; + desc->ext_prop_len += ext_prop->data_len; + if (ext_prop->type == USB_EXT_PROP_UNICODE || + ext_prop->type == USB_EXT_PROP_UNICODE_ENV || + ext_prop->type == USB_EXT_PROP_UNICODE_LINK) { + desc->ext_prop_len -= ext_prop->data_len; + ext_prop->data_len <<= 1; + ext_prop->data_len += 2; + desc->ext_prop_len += ext_prop->data_len; + } + if (desc->opts_mutex) + mutex_unlock(desc->opts_mutex); + return ret_len; +} + +static struct usb_os_desc_ext_prop_attribute ext_prop_type = + __CONFIGFS_ATTR(type, S_IRUGO | S_IWUSR, + ext_prop_type_show, ext_prop_type_store); + +static struct usb_os_desc_ext_prop_attribute ext_prop_data = + __CONFIGFS_ATTR(data, S_IRUGO | S_IWUSR, + ext_prop_data_show, ext_prop_data_store); + +static struct configfs_attribute *ext_prop_attrs[] = { + &ext_prop_type.attr, + &ext_prop_data.attr, + NULL, +}; + +static void usb_os_desc_ext_prop_release(struct config_item *item) +{ + struct usb_os_desc_ext_prop *ext_prop = to_usb_os_desc_ext_prop(item); + + kfree(ext_prop); /* frees a whole chunk */ +} + +static struct configfs_item_operations ext_prop_ops = { + .release = usb_os_desc_ext_prop_release, + .show_attribute = usb_os_desc_ext_prop_attr_show, + .store_attribute = usb_os_desc_ext_prop_attr_store, +}; + +static struct config_item *ext_prop_make( + struct config_group *group, + const char *name) +{ + struct usb_os_desc_ext_prop *ext_prop; + struct config_item_type *ext_prop_type; + struct usb_os_desc *desc; + char *vlabuf; + + vla_group(data_chunk); + vla_item(data_chunk, struct usb_os_desc_ext_prop, ext_prop, 1); + vla_item(data_chunk, struct config_item_type, ext_prop_type, 1); + + vlabuf = kzalloc(vla_group_size(data_chunk), GFP_KERNEL); + if (!vlabuf) + return ERR_PTR(-ENOMEM); + + ext_prop = vla_ptr(vlabuf, data_chunk, ext_prop); + ext_prop_type = vla_ptr(vlabuf, data_chunk, ext_prop_type); + + desc = container_of(group, struct usb_os_desc, group); + ext_prop_type->ct_item_ops = &ext_prop_ops; + ext_prop_type->ct_attrs = ext_prop_attrs; + ext_prop_type->ct_owner = desc->owner; + + config_item_init_type_name(&ext_prop->item, name, ext_prop_type); + + ext_prop->name = kstrdup(name, GFP_KERNEL); + if (!ext_prop->name) { + kfree(vlabuf); + return ERR_PTR(-ENOMEM); + } + desc->ext_prop_len += 14; + ext_prop->name_len = 2 * strlen(ext_prop->name) + 2; + if (desc->opts_mutex) + mutex_lock(desc->opts_mutex); + desc->ext_prop_len += ext_prop->name_len; + list_add_tail(&ext_prop->entry, &desc->ext_prop); + ++desc->ext_prop_count; + if (desc->opts_mutex) + mutex_unlock(desc->opts_mutex); + + return &ext_prop->item; +} + +static void ext_prop_drop(struct config_group *group, struct config_item *item) +{ + struct usb_os_desc_ext_prop *ext_prop = to_usb_os_desc_ext_prop(item); + struct usb_os_desc *desc = to_usb_os_desc(&group->cg_item); + + if (desc->opts_mutex) + mutex_lock(desc->opts_mutex); + list_del(&ext_prop->entry); + --desc->ext_prop_count; + kfree(ext_prop->name); + desc->ext_prop_len -= (ext_prop->name_len + ext_prop->data_len + 14); + if (desc->opts_mutex) + mutex_unlock(desc->opts_mutex); + config_item_put(item); +} + +static struct configfs_group_operations interf_grp_ops = { + .make_item = &ext_prop_make, + .drop_item = &ext_prop_drop, +}; + +static struct configfs_item_operations interf_item_ops = { + .show_attribute = usb_os_desc_attr_show, + .store_attribute = usb_os_desc_attr_store, +}; + +static ssize_t rndis_grp_compatible_id_show(struct usb_os_desc *desc, + char *page) +{ + memcpy(page, desc->ext_compat_id, 8); + return 8; +} + +static ssize_t rndis_grp_compatible_id_store(struct usb_os_desc *desc, + const char *page, size_t len) +{ + int l; + + l = min_t(int, 8, len); + if (page[l - 1] == '\n') + --l; + if (desc->opts_mutex) + mutex_lock(desc->opts_mutex); + memcpy(desc->ext_compat_id, page, l); + desc->ext_compat_id[l] = '\0'; + + if (desc->opts_mutex) + mutex_unlock(desc->opts_mutex); + + return len; +} + +static struct usb_os_desc_attribute rndis_grp_attr_compatible_id = + __CONFIGFS_ATTR(compatible_id, S_IRUGO | S_IWUSR, + rndis_grp_compatible_id_show, + rndis_grp_compatible_id_store); + +static ssize_t rndis_grp_sub_compatible_id_show(struct usb_os_desc *desc, + char *page) +{ + memcpy(page, desc->ext_compat_id + 8, 8); + return 8; +} + +static ssize_t rndis_grp_sub_compatible_id_store(struct usb_os_desc *desc, + const char *page, size_t len) +{ + int l; + + l = min_t(int, 8, len); + if (page[l - 1] == '\n') + --l; + if (desc->opts_mutex) + mutex_lock(desc->opts_mutex); + memcpy(desc->ext_compat_id + 8, page, l); + desc->ext_compat_id[l + 8] = '\0'; + + if (desc->opts_mutex) + mutex_unlock(desc->opts_mutex); + + return len; +} + +static struct usb_os_desc_attribute rndis_grp_attr_sub_compatible_id = + __CONFIGFS_ATTR(sub_compatible_id, S_IRUGO | S_IWUSR, + rndis_grp_sub_compatible_id_show, + rndis_grp_sub_compatible_id_store); + +static struct configfs_attribute *interf_grp_attrs[] = { + &rndis_grp_attr_compatible_id.attr, + &rndis_grp_attr_sub_compatible_id.attr, + NULL +}; + +int usb_os_desc_prepare_interf_dir(struct config_group *parent, + int n_interf, + struct usb_os_desc **desc, + struct module *owner) +{ + struct config_group **f_default_groups, *os_desc_group, + **interface_groups; + struct config_item_type *os_desc_type, *interface_type; + + vla_group(data_chunk); + vla_item(data_chunk, struct config_group *, f_default_groups, 2); + vla_item(data_chunk, struct config_group, os_desc_group, 1); + vla_item(data_chunk, struct config_group *, interface_groups, + n_interf + 1); + vla_item(data_chunk, struct config_item_type, os_desc_type, 1); + vla_item(data_chunk, struct config_item_type, interface_type, 1); + + char *vlabuf = kzalloc(vla_group_size(data_chunk), GFP_KERNEL); + if (!vlabuf) + return -ENOMEM; + + f_default_groups = vla_ptr(vlabuf, data_chunk, f_default_groups); + os_desc_group = vla_ptr(vlabuf, data_chunk, os_desc_group); + os_desc_type = vla_ptr(vlabuf, data_chunk, os_desc_type); + interface_groups = vla_ptr(vlabuf, data_chunk, interface_groups); + interface_type = vla_ptr(vlabuf, data_chunk, interface_type); + + parent->default_groups = f_default_groups; + os_desc_type->ct_owner = owner; + config_group_init_type_name(os_desc_group, "os_desc", os_desc_type); + f_default_groups[0] = os_desc_group; + + os_desc_group->default_groups = interface_groups; + interface_type->ct_item_ops = &interf_item_ops; + interface_type->ct_group_ops = &interf_grp_ops; + interface_type->ct_attrs = interf_grp_attrs; + interface_type->ct_owner = owner; + + while (n_interf--) { + struct usb_os_desc *d; + + d = desc[n_interf]; + d->owner = owner; + config_group_init_type_name(&d->group, "", interface_type); + config_item_set_name(&d->group.cg_item, "interface.%d", + n_interf); + interface_groups[n_interf] = &d->group; + } + + return 0; +} +EXPORT_SYMBOL(usb_os_desc_prepare_interf_dir); + static int configfs_do_nothing(struct usb_composite_dev *cdev) { WARN_ON(1); @@ -745,6 +1275,9 @@ static int configfs_do_nothing(struct usb_composite_dev *cdev) int composite_dev_prepare(struct usb_composite_driver *composite, struct usb_composite_dev *dev); +int composite_os_desc_req_prepare(struct usb_composite_dev *cdev, + struct usb_ep *ep0); + static void purge_configs_funcs(struct gadget_info *gi) { struct usb_configuration *c; @@ -793,7 +1326,7 @@ static int configfs_composite_bind(struct usb_gadget *gadget, ret = -EINVAL; if (list_empty(&gi->cdev.configs)) { - pr_err("Need atleast one configuration in %s.\n", + pr_err("Need at least one configuration in %s.\n", gi->composite.name); goto err_comp_cleanup; } @@ -804,7 +1337,7 @@ static int configfs_composite_bind(struct usb_gadget *gadget, cfg = container_of(c, struct config_usb_cfg, c); if (list_empty(&cfg->func_list)) { - pr_err("Config %s/%d of %s needs atleast one function.\n", + pr_err("Config %s/%d of %s needs at least one function.\n", c->label, c->bConfigurationValue, gi->composite.name); goto err_comp_cleanup; @@ -839,6 +1372,12 @@ static int configfs_composite_bind(struct usb_gadget *gadget, gi->cdev.desc.iSerialNumber = s[USB_GADGET_SERIAL_IDX].id; } + if (gi->use_os_desc) { + cdev->use_os_string = true; + cdev->b_vendor_code = gi->b_vendor_code; + memcpy(cdev->qw_sign, gi->qw_sign, OS_STRING_QW_SIGN_LEN); + } + /* Go through all configs, attach all functions */ list_for_each_entry(c, &gi->cdev.configs, list) { struct config_usb_cfg *cfg; @@ -874,6 +1413,12 @@ static int configfs_composite_bind(struct usb_gadget *gadget, } usb_ep_autoconfig_reset(cdev->gadget); } + if (cdev->use_os_string) { + ret = composite_os_desc_req_prepare(cdev, gadget->ep0); + if (ret) + goto err_purge_funcs; + } + usb_ep_autoconfig_reset(cdev->gadget); return 0; @@ -929,6 +1474,7 @@ static struct config_group *gadgets_make( gi->group.default_groups[0] = &gi->functions_group; gi->group.default_groups[1] = &gi->configs_group; gi->group.default_groups[2] = &gi->strings_group; + gi->group.default_groups[3] = &gi->os_desc_group; config_group_init_type_name(&gi->functions_group, "functions", &functions_type); @@ -936,6 +1482,8 @@ static struct config_group *gadgets_make( &config_desc_type); config_group_init_type_name(&gi->strings_group, "strings", &gadget_strings_strings_type); + config_group_init_type_name(&gi->os_desc_group, "os_desc", + &os_desc_type); gi->composite.bind = configfs_do_nothing; gi->composite.unbind = configfs_do_nothing; @@ -1005,7 +1553,7 @@ void unregister_gadget_item(struct config_item *item) unregister_gadget(gi); } -EXPORT_SYMBOL(unregister_gadget_item); +EXPORT_SYMBOL_GPL(unregister_gadget_item); static int __init gadget_cfs_init(void) { diff --git a/drivers/usb/gadget/configfs.h b/drivers/usb/gadget/configfs.h index a7b564a913d1..a14ac792c698 100644 --- a/drivers/usb/gadget/configfs.h +++ b/drivers/usb/gadget/configfs.h @@ -1,6 +1,18 @@ #ifndef USB__GADGET__CONFIGFS__H #define USB__GADGET__CONFIGFS__H +#include <linux/configfs.h> + void unregister_gadget_item(struct config_item *item); +int usb_os_desc_prepare_interf_dir(struct config_group *parent, + int n_interf, + struct usb_os_desc **desc, + struct module *owner); + +static inline struct usb_os_desc *to_usb_os_desc(struct config_item *item) +{ + return container_of(to_config_group(item), struct usb_os_desc, group); +} + #endif /* USB__GADGET__CONFIGFS__H */ diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 1e12b3ee56fd..74202d67f911 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -33,36 +33,11 @@ #include <linux/poll.h> #include "u_fs.h" +#include "u_f.h" #include "configfs.h" #define FUNCTIONFS_MAGIC 0xa647361 /* Chosen by a honest dice roll ;) */ -/* Variable Length Array Macros **********************************************/ -#define vla_group(groupname) size_t groupname##__next = 0 -#define vla_group_size(groupname) groupname##__next - -#define vla_item(groupname, type, name, n) \ - size_t groupname##_##name##__offset = ({ \ - size_t align_mask = __alignof__(type) - 1; \ - size_t offset = (groupname##__next + align_mask) & ~align_mask;\ - size_t size = (n) * sizeof(type); \ - groupname##__next = offset + size; \ - offset; \ - }) - -#define vla_item_with_sz(groupname, type, name, n) \ - size_t groupname##_##name##__sz = (n) * sizeof(type); \ - size_t groupname##_##name##__offset = ({ \ - size_t align_mask = __alignof__(type) - 1; \ - size_t offset = (groupname##__next + align_mask) & ~align_mask;\ - size_t size = groupname##_##name##__sz; \ - groupname##__next = offset + size; \ - offset; \ - }) - -#define vla_ptr(ptr, groupname, name) \ - ((void *) ((char *)ptr + groupname##_##name##__offset)) - /* Reference counter handling */ static void ffs_data_get(struct ffs_data *ffs); static void ffs_data_put(struct ffs_data *ffs); @@ -190,7 +165,7 @@ ffs_sb_create_file(struct super_block *sb, const char *name, void *data, /* Devices management *******************************************************/ DEFINE_MUTEX(ffs_lock); -EXPORT_SYMBOL(ffs_lock); +EXPORT_SYMBOL_GPL(ffs_lock); static struct ffs_dev *_ffs_find_dev(const char *name); static struct ffs_dev *_ffs_alloc_dev(void); @@ -2883,7 +2858,7 @@ int ffs_name_dev(struct ffs_dev *dev, const char *name) return ret; } -EXPORT_SYMBOL(ffs_name_dev); +EXPORT_SYMBOL_GPL(ffs_name_dev); int ffs_single_dev(struct ffs_dev *dev) { @@ -2900,7 +2875,7 @@ int ffs_single_dev(struct ffs_dev *dev) ffs_dev_unlock(); return ret; } -EXPORT_SYMBOL(ffs_single_dev); +EXPORT_SYMBOL_GPL(ffs_single_dev); /* * ffs_lock must be taken by the caller of this function diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 9a4f49dc6ac4..eed3ad878047 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -27,6 +27,7 @@ #include "u_ether_configfs.h" #include "u_rndis.h" #include "rndis.h" +#include "configfs.h" /* * This function is an RNDIS Ethernet port -- a Microsoft protocol that's @@ -682,6 +683,15 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) rndis_opts = container_of(f->fi, struct f_rndis_opts, func_inst); + if (cdev->use_os_string) { + f->os_desc_table = kzalloc(sizeof(*f->os_desc_table), + GFP_KERNEL); + if (!f->os_desc_table) + return PTR_ERR(f->os_desc_table); + f->os_desc_n = 1; + f->os_desc_table[0].os_desc = &rndis_opts->rndis_os_desc; + } + /* * in drivers/usb/gadget/configfs.c:configfs_composite_bind() * configurations are bound in sequence with list_for_each_entry, @@ -693,14 +703,16 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) gether_set_gadget(rndis_opts->net, cdev->gadget); status = gether_register_netdev(rndis_opts->net); if (status) - return status; + goto fail; rndis_opts->bound = true; } us = usb_gstrings_attach(cdev, rndis_strings, ARRAY_SIZE(rndis_string_defs)); - if (IS_ERR(us)) - return PTR_ERR(us); + if (IS_ERR(us)) { + status = PTR_ERR(us); + goto fail; + } rndis_control_intf.iInterface = us[0].id; rndis_data_intf.iInterface = us[1].id; rndis_iad_descriptor.iFunction = us[2].id; @@ -802,6 +814,8 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f) return 0; fail: + kfree(f->os_desc_table); + f->os_desc_n = 0; usb_free_all_descriptors(f); if (rndis->notify_req) { @@ -834,7 +848,7 @@ void rndis_borrow_net(struct usb_function_instance *f, struct net_device *net) opts->borrowed_net = opts->bound = true; opts->net = net; } -EXPORT_SYMBOL(rndis_borrow_net); +EXPORT_SYMBOL_GPL(rndis_borrow_net); static inline struct f_rndis_opts *to_f_rndis_opts(struct config_item *item) { @@ -882,16 +896,21 @@ static void rndis_free_inst(struct usb_function_instance *f) else free_netdev(opts->net); } + + kfree(opts->rndis_os_desc.group.default_groups); /* single VLA chunk */ kfree(opts); } static struct usb_function_instance *rndis_alloc_inst(void) { struct f_rndis_opts *opts; + struct usb_os_desc *descs[1]; opts = kzalloc(sizeof(*opts), GFP_KERNEL); if (!opts) return ERR_PTR(-ENOMEM); + opts->rndis_os_desc.ext_compat_id = opts->rndis_ext_compat_id; + mutex_init(&opts->lock); opts->func_inst.free_func_inst = rndis_free_inst; opts->net = gether_setup_default(); @@ -900,7 +919,11 @@ static struct usb_function_instance *rndis_alloc_inst(void) kfree(opts); return ERR_CAST(net); } + INIT_LIST_HEAD(&opts->rndis_os_desc.ext_prop); + descs[0] = &opts->rndis_os_desc; + usb_os_desc_prepare_interf_dir(&opts->func_inst.group, 1, descs, + THIS_MODULE); config_group_init_type_name(&opts->func_inst.group, "", &rndis_func_type); @@ -925,6 +948,8 @@ static void rndis_unbind(struct usb_configuration *c, struct usb_function *f) { struct f_rndis *rndis = func_to_rndis(f); + kfree(f->os_desc_table); + f->os_desc_n = 0; usb_free_all_descriptors(f); kfree(rndis->notify_req->buf); diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c index df4a0dcbc993..1ea8baf33333 100644 --- a/drivers/usb/gadget/f_subset.c +++ b/drivers/usb/gadget/f_subset.c @@ -276,7 +276,7 @@ static int geth_set_alt(struct usb_function *f, unsigned intf, unsigned alt) } net = gether_connect(&geth->port); - return PTR_RET(net); + return PTR_ERR_OR_ZERO(net); } static void geth_disable(struct usb_function *f) diff --git a/drivers/usb/gadget/f_uac2.c b/drivers/usb/gadget/f_uac2.c index bc23040c7790..6261db4a9910 100644 --- a/drivers/usb/gadget/f_uac2.c +++ b/drivers/usb/gadget/f_uac2.c @@ -196,7 +196,7 @@ agdev_iso_complete(struct usb_ep *ep, struct usb_request *req) struct snd_uac2_chip *uac2 = prm->uac2; /* i/f shutting down */ - if (!prm->ep_enabled) + if (!prm->ep_enabled || req->status == -ESHUTDOWN) return; /* @@ -974,8 +974,6 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn) prm->rbuf = kzalloc(prm->max_psize * USB_XFERS, GFP_KERNEL); if (!prm->rbuf) { prm->max_psize = 0; - dev_err(&uac2->pdev.dev, - "%s:%d Error!\n", __func__, __LINE__); goto err; } @@ -984,8 +982,6 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn) prm->rbuf = kzalloc(prm->max_psize * USB_XFERS, GFP_KERNEL); if (!prm->rbuf) { prm->max_psize = 0; - dev_err(&uac2->pdev.dev, - "%s:%d Error!\n", __func__, __LINE__); goto err; } @@ -1298,10 +1294,8 @@ static int audio_bind_config(struct usb_configuration *cfg) int res; agdev_g = kzalloc(sizeof *agdev_g, GFP_KERNEL); - if (agdev_g == NULL) { - printk(KERN_ERR "Unable to allocate audio gadget\n"); + if (agdev_g == NULL) return -ENOMEM; - } res = usb_string_ids_tab(cfg->cdev, strings_fn); if (res) diff --git a/drivers/usb/gadget/fotg210-udc.c b/drivers/usb/gadget/fotg210-udc.c index 2d0305280e8c..e143d69f6017 100644 --- a/drivers/usb/gadget/fotg210-udc.c +++ b/drivers/usb/gadget/fotg210-udc.c @@ -1112,17 +1112,13 @@ static int fotg210_udc_probe(struct platform_device *pdev) /* initialize udc */ fotg210 = kzalloc(sizeof(struct fotg210_udc), GFP_KERNEL); - if (fotg210 == NULL) { - pr_err("kzalloc error\n"); + if (fotg210 == NULL) goto err_alloc; - } for (i = 0; i < FOTG210_MAX_NUM_EP; i++) { _ep[i] = kzalloc(sizeof(struct fotg210_ep), GFP_KERNEL); - if (_ep[i] == NULL) { - pr_err("_ep kzalloc error\n"); + if (_ep[i] == NULL) goto err_alloc; - } fotg210->ep[i] = _ep[i]; } diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index a2f26cdb56fe..28e4fc957026 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -2256,10 +2256,8 @@ static int __init struct_udc_setup(struct fsl_udc *udc, udc->phy_mode = pdata->phy_mode; udc->eps = kzalloc(sizeof(struct fsl_ep) * udc->max_ep, GFP_KERNEL); - if (!udc->eps) { - ERR("malloc fsl_ep failed\n"); + if (!udc->eps) return -1; - } /* initialized QHs, take care of alignment */ size = udc->max_ep * sizeof(struct ep_queue_head); @@ -2342,10 +2340,8 @@ static int __init fsl_udc_probe(struct platform_device *pdev) u32 dccparams; udc_controller = kzalloc(sizeof(struct fsl_udc), GFP_KERNEL); - if (udc_controller == NULL) { - ERR("malloc udc failed\n"); + if (udc_controller == NULL) return -ENOMEM; - } pdata = dev_get_platdata(&pdev->dev); udc_controller->pdata = pdata; diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index 6423f1840ed9..3deb4e938071 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -1400,17 +1400,13 @@ static int __init fusb300_probe(struct platform_device *pdev) /* initialize udc */ fusb300 = kzalloc(sizeof(struct fusb300), GFP_KERNEL); - if (fusb300 == NULL) { - pr_err("kzalloc error\n"); + if (fusb300 == NULL) goto clean_up; - } for (i = 0; i < FUSB300_MAX_NUM_EP; i++) { _ep[i] = kzalloc(sizeof(struct fusb300_ep), GFP_KERNEL); - if (_ep[i] == NULL) { - pr_err("_ep kzalloc error\n"); + if (_ep[i] == NULL) goto clean_up; - } fusb300->ep[i] = _ep[i]; } diff --git a/drivers/usb/gadget/gr_udc.c b/drivers/usb/gadget/gr_udc.c index f984ee75324d..99a37ed03e27 100644 --- a/drivers/usb/gadget/gr_udc.c +++ b/drivers/usb/gadget/gr_udc.c @@ -143,6 +143,7 @@ static void gr_seq_ep_show(struct seq_file *seq, struct gr_ep *ep) seq_printf(seq, " wedged = %d\n", ep->wedged); seq_printf(seq, " callback = %d\n", ep->callback); seq_printf(seq, " maxpacket = %d\n", ep->ep.maxpacket); + seq_printf(seq, " maxpacket_limit = %d\n", ep->ep.maxpacket_limit); seq_printf(seq, " bytes_per_buffer = %d\n", ep->bytes_per_buffer); if (mode == 1 || mode == 3) seq_printf(seq, " nt = %d\n", @@ -1541,6 +1542,10 @@ static int gr_ep_enable(struct usb_ep *_ep, } else if (max == 0) { dev_err(dev->dev, "Max payload cannot be set to 0\n"); return -EINVAL; + } else if (max > ep->ep.maxpacket_limit) { + dev_err(dev->dev, "Requested max payload %d > limit %d\n", + max, ep->ep.maxpacket_limit); + return -EINVAL; } spin_lock(&ep->dev->lock); @@ -1679,7 +1684,7 @@ static int gr_queue_ext(struct usb_ep *_ep, struct usb_request *_req, if (ep->is_in) gr_dbgprint_request("EXTERN", ep, req); - ret = gr_queue(ep, req, gfp_flags); + ret = gr_queue(ep, req, GFP_ATOMIC); spin_unlock(&ep->dev->lock); @@ -1985,8 +1990,8 @@ static int gr_ep_init(struct gr_udc *dev, int num, int is_in, u32 maxplimit) INIT_LIST_HEAD(&ep->queue); if (num == 0) { - _req = gr_alloc_request(&ep->ep, GFP_KERNEL); - buf = devm_kzalloc(dev->dev, PAGE_SIZE, GFP_DMA | GFP_KERNEL); + _req = gr_alloc_request(&ep->ep, GFP_ATOMIC); + buf = devm_kzalloc(dev->dev, PAGE_SIZE, GFP_DMA | GFP_ATOMIC); if (!_req || !buf) { /* possible _req freed by gr_probe via gr_remove */ return -ENOMEM; @@ -2020,9 +2025,7 @@ static int gr_udc_init(struct gr_udc *dev) u32 dmactrl_val; int i; int ret = 0; - u32 *bufsizes; u32 bufsize; - int len; gr_set_address(dev, 0); @@ -2033,19 +2036,17 @@ static int gr_udc_init(struct gr_udc *dev) INIT_LIST_HEAD(&dev->ep_list); gr_set_ep0state(dev, GR_EP0_DISCONNECT); - bufsizes = (u32 *)of_get_property(np, "epobufsizes", &len); - len /= sizeof(u32); for (i = 0; i < dev->nepo; i++) { - bufsize = (bufsizes && i < len) ? bufsizes[i] : 1024; + if (of_property_read_u32_index(np, "epobufsizes", i, &bufsize)) + bufsize = 1024; ret = gr_ep_init(dev, i, 0, bufsize); if (ret) return ret; } - bufsizes = (u32 *)of_get_property(np, "epibufsizes", &len); - len /= sizeof(u32); for (i = 0; i < dev->nepi; i++) { - bufsize = (bufsizes && i < len) ? bufsizes[i] : 1024; + if (of_property_read_u32_index(np, "epibufsizes", i, &bufsize)) + bufsize = 1024; ret = gr_ep_init(dev, i, 1, bufsize); if (ret) return ret; @@ -2065,9 +2066,9 @@ static int gr_udc_init(struct gr_udc *dev) return 0; } -static int gr_remove(struct platform_device *ofdev) +static int gr_remove(struct platform_device *pdev) { - struct gr_udc *dev = dev_get_drvdata(&ofdev->dev); + struct gr_udc *dev = platform_get_drvdata(pdev); if (dev->added) usb_del_gadget_udc(&dev->gadget); /* Shuts everything down */ @@ -2077,7 +2078,7 @@ static int gr_remove(struct platform_device *ofdev) gr_dfs_delete(dev); if (dev->desc_pool) dma_pool_destroy(dev->desc_pool); - dev_set_drvdata(&ofdev->dev, NULL); + platform_set_drvdata(pdev, NULL); gr_free_request(&dev->epi[0].ep, &dev->ep0reqi->req); gr_free_request(&dev->epo[0].ep, &dev->ep0reqo->req); @@ -2090,7 +2091,7 @@ static int gr_request_irq(struct gr_udc *dev, int irq) IRQF_SHARED, driver_name, dev); } -static int gr_probe(struct platform_device *ofdev) +static int gr_probe(struct platform_device *pdev) { struct gr_udc *dev; struct resource *res; @@ -2098,30 +2099,32 @@ static int gr_probe(struct platform_device *ofdev) int retval; u32 status; - dev = devm_kzalloc(&ofdev->dev, sizeof(*dev), GFP_KERNEL); + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; - dev->dev = &ofdev->dev; + dev->dev = &pdev->dev; - res = platform_get_resource(ofdev, IORESOURCE_MEM, 0); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); regs = devm_ioremap_resource(dev->dev, res); if (IS_ERR(regs)) return PTR_ERR(regs); - dev->irq = irq_of_parse_and_map(dev->dev->of_node, 0); - if (!dev->irq) { + dev->irq = platform_get_irq(pdev, 0); + if (dev->irq <= 0) { dev_err(dev->dev, "No irq found\n"); return -ENODEV; } /* Some core configurations has separate irqs for IN and OUT events */ - dev->irqi = irq_of_parse_and_map(dev->dev->of_node, 1); - if (dev->irqi) { - dev->irqo = irq_of_parse_and_map(dev->dev->of_node, 2); - if (!dev->irqo) { + dev->irqi = platform_get_irq(pdev, 1); + if (dev->irqi > 0) { + dev->irqo = platform_get_irq(pdev, 2); + if (dev->irqo <= 0) { dev_err(dev->dev, "Found irqi but not irqo\n"); return -ENODEV; } + } else { + dev->irqi = 0; } dev->gadget.name = driver_name; @@ -2132,7 +2135,7 @@ static int gr_probe(struct platform_device *ofdev) spin_lock_init(&dev->lock); dev->regs = regs; - dev_set_drvdata(&ofdev->dev, dev); + platform_set_drvdata(pdev, dev); /* Determine number of endpoints and data interface mode */ status = gr_read32(&dev->regs->status); @@ -2204,7 +2207,7 @@ out: spin_unlock(&dev->lock); if (retval) - gr_remove(ofdev); + gr_remove(pdev); return retval; } diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index a925d0cbcd41..5b840fb0cce5 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -1494,6 +1494,7 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) */ if (value == 0) { INFO (dev, "configuration #%d\n", dev->current_config); + usb_gadget_set_state(gadget, USB_STATE_CONFIGURED); if (dev->usermode_setup) { dev->setup_can_stall = 0; goto delegate; diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index 8cae01d88597..0d17174b86f8 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -1594,7 +1594,6 @@ static int __init m66592_probe(struct platform_device *pdev) m66592 = kzalloc(sizeof(struct m66592), GFP_KERNEL); if (m66592 == NULL) { ret = -ENOMEM; - pr_err("kzalloc error\n"); goto clean_up; } diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index d2ca59e7b477..16248711c152 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -297,10 +297,8 @@ static struct mv_u3d_trb *mv_u3d_build_trb_one(struct mv_u3d_req *req, u3d = req->ep->u3d; trb = kzalloc(sizeof(*trb), GFP_ATOMIC); - if (!trb) { - dev_err(u3d->dev, "%s, trb alloc fail\n", __func__); + if (!trb) return NULL; - } /* * Be careful that no _GFP_HIGHMEM is set, @@ -446,17 +444,12 @@ static int mv_u3d_req_to_trb(struct mv_u3d_req *req) trb_num++; trb = kcalloc(trb_num, sizeof(*trb), GFP_ATOMIC); - if (!trb) { - dev_err(u3d->dev, - "%s, trb alloc fail\n", __func__); + if (!trb) return -ENOMEM; - } trb_hw = kcalloc(trb_num, sizeof(*trb_hw), GFP_ATOMIC); if (!trb_hw) { kfree(trb); - dev_err(u3d->dev, - "%s, trb_hw alloc fail\n", __func__); return -ENOMEM; } @@ -1811,7 +1804,6 @@ static int mv_u3d_probe(struct platform_device *dev) u3d = kzalloc(sizeof(*u3d), GFP_KERNEL); if (!u3d) { - dev_err(&dev->dev, "failed to allocate memory for u3d\n"); retval = -ENOMEM; goto err_alloc_private; } @@ -1905,7 +1897,6 @@ static int mv_u3d_probe(struct platform_device *dev) size = u3d->max_eps * sizeof(struct mv_u3d_ep) * 2; u3d->eps = kzalloc(size, GFP_KERNEL); if (!u3d->eps) { - dev_err(&dev->dev, "allocate ep memory failed\n"); retval = -ENOMEM; goto err_alloc_eps; } @@ -1913,7 +1904,6 @@ static int mv_u3d_probe(struct platform_device *dev) /* initialize ep0 status request structure */ u3d->status_req = kzalloc(sizeof(struct mv_u3d_req) + 8, GFP_KERNEL); if (!u3d->status_req) { - dev_err(&dev->dev, "allocate status_req memory failed\n"); retval = -ENOMEM; goto err_alloc_status_req; } diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 43e5e2f9888f..300b3a71383b 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -1972,7 +1972,9 @@ static int net2280_stop(struct usb_gadget *_gadget, device_remove_file (&dev->pdev->dev, &dev_attr_function); device_remove_file (&dev->pdev->dev, &dev_attr_queues); - DEBUG (dev, "unregistered driver '%s'\n", driver->driver.name); + DEBUG(dev, "unregistered driver '%s'\n", + driver ? driver->driver.name : ""); + return 0; } diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index aff0a6718bc6..b698a490cc7d 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -1904,7 +1904,6 @@ static int __init r8a66597_probe(struct platform_device *pdev) r8a66597 = kzalloc(sizeof(struct r8a66597), GFP_KERNEL); if (r8a66597 == NULL) { ret = -ENOMEM; - dev_err(&pdev->dev, "kzalloc error\n"); goto clean_up; } diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index 7ed452d90f4d..95d2324f6977 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -761,7 +761,7 @@ int rndis_signal_connect(int configNr) return rndis_indicate_status_msg(configNr, RNDIS_STATUS_MEDIA_CONNECT); } -EXPORT_SYMBOL(rndis_signal_connect); +EXPORT_SYMBOL_GPL(rndis_signal_connect); int rndis_signal_disconnect(int configNr) { @@ -770,7 +770,7 @@ int rndis_signal_disconnect(int configNr) return rndis_indicate_status_msg(configNr, RNDIS_STATUS_MEDIA_DISCONNECT); } -EXPORT_SYMBOL(rndis_signal_disconnect); +EXPORT_SYMBOL_GPL(rndis_signal_disconnect); void rndis_uninit(int configNr) { @@ -785,13 +785,13 @@ void rndis_uninit(int configNr) while ((buf = rndis_get_next_response(configNr, &length))) rndis_free_response(configNr, buf); } -EXPORT_SYMBOL(rndis_uninit); +EXPORT_SYMBOL_GPL(rndis_uninit); void rndis_set_host_mac(int configNr, const u8 *addr) { rndis_per_dev_params[configNr].host_mac = addr; } -EXPORT_SYMBOL(rndis_set_host_mac); +EXPORT_SYMBOL_GPL(rndis_set_host_mac); /* * Message Parser @@ -874,7 +874,7 @@ int rndis_msg_parser(u8 configNr, u8 *buf) return -ENOTSUPP; } -EXPORT_SYMBOL(rndis_msg_parser); +EXPORT_SYMBOL_GPL(rndis_msg_parser); int rndis_register(void (*resp_avail)(void *v), void *v) { @@ -896,7 +896,7 @@ int rndis_register(void (*resp_avail)(void *v), void *v) return -ENODEV; } -EXPORT_SYMBOL(rndis_register); +EXPORT_SYMBOL_GPL(rndis_register); void rndis_deregister(int configNr) { @@ -905,7 +905,7 @@ void rndis_deregister(int configNr) if (configNr >= RNDIS_MAX_CONFIGS) return; rndis_per_dev_params[configNr].used = 0; } -EXPORT_SYMBOL(rndis_deregister); +EXPORT_SYMBOL_GPL(rndis_deregister); int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter) { @@ -919,7 +919,7 @@ int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter) return 0; } -EXPORT_SYMBOL(rndis_set_param_dev); +EXPORT_SYMBOL_GPL(rndis_set_param_dev); int rndis_set_param_vendor(u8 configNr, u32 vendorID, const char *vendorDescr) { @@ -932,7 +932,7 @@ int rndis_set_param_vendor(u8 configNr, u32 vendorID, const char *vendorDescr) return 0; } -EXPORT_SYMBOL(rndis_set_param_vendor); +EXPORT_SYMBOL_GPL(rndis_set_param_vendor); int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed) { @@ -944,7 +944,7 @@ int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed) return 0; } -EXPORT_SYMBOL(rndis_set_param_medium); +EXPORT_SYMBOL_GPL(rndis_set_param_medium); void rndis_add_hdr(struct sk_buff *skb) { @@ -959,7 +959,7 @@ void rndis_add_hdr(struct sk_buff *skb) header->DataOffset = cpu_to_le32(36); header->DataLength = cpu_to_le32(skb->len - sizeof(*header)); } -EXPORT_SYMBOL(rndis_add_hdr); +EXPORT_SYMBOL_GPL(rndis_add_hdr); void rndis_free_response(int configNr, u8 *buf) { @@ -976,7 +976,7 @@ void rndis_free_response(int configNr, u8 *buf) } } } -EXPORT_SYMBOL(rndis_free_response); +EXPORT_SYMBOL_GPL(rndis_free_response); u8 *rndis_get_next_response(int configNr, u32 *length) { @@ -998,7 +998,7 @@ u8 *rndis_get_next_response(int configNr, u32 *length) return NULL; } -EXPORT_SYMBOL(rndis_get_next_response); +EXPORT_SYMBOL_GPL(rndis_get_next_response); static rndis_resp_t *rndis_add_response(int configNr, u32 length) { @@ -1042,7 +1042,7 @@ int rndis_rm_hdr(struct gether *port, skb_queue_tail(list, skb); return 0; } -EXPORT_SYMBOL(rndis_rm_hdr); +EXPORT_SYMBOL_GPL(rndis_rm_hdr); #ifdef CONFIG_USB_GADGET_DEBUG_FILES diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index dd9678f85c58..7987aa049fab 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -117,7 +117,8 @@ static int dprintk(int level, const char *fmt, ...) sizeof(printk_buf)-len, fmt, args); va_end(args); - return pr_debug("%s", printk_buf); + pr_debug("%s", printk_buf); + return len; } #else static int dprintk(int level, const char *fmt, ...) diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c index ec20a1f50c2d..ff205a7bc55c 100644 --- a/drivers/usb/gadget/storage_common.c +++ b/drivers/usb/gadget/storage_common.c @@ -43,7 +43,7 @@ struct usb_interface_descriptor fsg_intf_desc = { .bInterfaceProtocol = USB_PR_BULK, /* Adjusted during fsg_bind() */ .iInterface = FSG_STRING_INTERFACE, }; -EXPORT_SYMBOL(fsg_intf_desc); +EXPORT_SYMBOL_GPL(fsg_intf_desc); /* * Three full-speed endpoint descriptors: bulk-in, bulk-out, and @@ -58,7 +58,7 @@ struct usb_endpoint_descriptor fsg_fs_bulk_in_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, /* wMaxPacketSize set by autoconfiguration */ }; -EXPORT_SYMBOL(fsg_fs_bulk_in_desc); +EXPORT_SYMBOL_GPL(fsg_fs_bulk_in_desc); struct usb_endpoint_descriptor fsg_fs_bulk_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, @@ -68,7 +68,7 @@ struct usb_endpoint_descriptor fsg_fs_bulk_out_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, /* wMaxPacketSize set by autoconfiguration */ }; -EXPORT_SYMBOL(fsg_fs_bulk_out_desc); +EXPORT_SYMBOL_GPL(fsg_fs_bulk_out_desc); struct usb_descriptor_header *fsg_fs_function[] = { (struct usb_descriptor_header *) &fsg_intf_desc, @@ -76,7 +76,7 @@ struct usb_descriptor_header *fsg_fs_function[] = { (struct usb_descriptor_header *) &fsg_fs_bulk_out_desc, NULL, }; -EXPORT_SYMBOL(fsg_fs_function); +EXPORT_SYMBOL_GPL(fsg_fs_function); /* @@ -95,7 +95,7 @@ struct usb_endpoint_descriptor fsg_hs_bulk_in_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(512), }; -EXPORT_SYMBOL(fsg_hs_bulk_in_desc); +EXPORT_SYMBOL_GPL(fsg_hs_bulk_in_desc); struct usb_endpoint_descriptor fsg_hs_bulk_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, @@ -106,7 +106,7 @@ struct usb_endpoint_descriptor fsg_hs_bulk_out_desc = { .wMaxPacketSize = cpu_to_le16(512), .bInterval = 1, /* NAK every 1 uframe */ }; -EXPORT_SYMBOL(fsg_hs_bulk_out_desc); +EXPORT_SYMBOL_GPL(fsg_hs_bulk_out_desc); struct usb_descriptor_header *fsg_hs_function[] = { @@ -115,7 +115,7 @@ struct usb_descriptor_header *fsg_hs_function[] = { (struct usb_descriptor_header *) &fsg_hs_bulk_out_desc, NULL, }; -EXPORT_SYMBOL(fsg_hs_function); +EXPORT_SYMBOL_GPL(fsg_hs_function); struct usb_endpoint_descriptor fsg_ss_bulk_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, @@ -125,7 +125,7 @@ struct usb_endpoint_descriptor fsg_ss_bulk_in_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(1024), }; -EXPORT_SYMBOL(fsg_ss_bulk_in_desc); +EXPORT_SYMBOL_GPL(fsg_ss_bulk_in_desc); struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = { .bLength = sizeof(fsg_ss_bulk_in_comp_desc), @@ -133,7 +133,7 @@ struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = { /*.bMaxBurst = DYNAMIC, */ }; -EXPORT_SYMBOL(fsg_ss_bulk_in_comp_desc); +EXPORT_SYMBOL_GPL(fsg_ss_bulk_in_comp_desc); struct usb_endpoint_descriptor fsg_ss_bulk_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, @@ -143,7 +143,7 @@ struct usb_endpoint_descriptor fsg_ss_bulk_out_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(1024), }; -EXPORT_SYMBOL(fsg_ss_bulk_out_desc); +EXPORT_SYMBOL_GPL(fsg_ss_bulk_out_desc); struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = { .bLength = sizeof(fsg_ss_bulk_in_comp_desc), @@ -151,7 +151,7 @@ struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = { /*.bMaxBurst = DYNAMIC, */ }; -EXPORT_SYMBOL(fsg_ss_bulk_out_comp_desc); +EXPORT_SYMBOL_GPL(fsg_ss_bulk_out_comp_desc); struct usb_descriptor_header *fsg_ss_function[] = { (struct usb_descriptor_header *) &fsg_intf_desc, @@ -161,7 +161,7 @@ struct usb_descriptor_header *fsg_ss_function[] = { (struct usb_descriptor_header *) &fsg_ss_bulk_out_comp_desc, NULL, }; -EXPORT_SYMBOL(fsg_ss_function); +EXPORT_SYMBOL_GPL(fsg_ss_function); /*-------------------------------------------------------------------------*/ @@ -179,7 +179,7 @@ void fsg_lun_close(struct fsg_lun *curlun) curlun->filp = NULL; } } -EXPORT_SYMBOL(fsg_lun_close); +EXPORT_SYMBOL_GPL(fsg_lun_close); int fsg_lun_open(struct fsg_lun *curlun, const char *filename) { @@ -278,7 +278,7 @@ out: fput(filp); return rc; } -EXPORT_SYMBOL(fsg_lun_open); +EXPORT_SYMBOL_GPL(fsg_lun_open); /*-------------------------------------------------------------------------*/ @@ -295,7 +295,7 @@ int fsg_lun_fsync_sub(struct fsg_lun *curlun) return 0; return vfs_fsync(filp, 1); } -EXPORT_SYMBOL(fsg_lun_fsync_sub); +EXPORT_SYMBOL_GPL(fsg_lun_fsync_sub); void store_cdrom_address(u8 *dest, int msf, u32 addr) { @@ -314,7 +314,7 @@ void store_cdrom_address(u8 *dest, int msf, u32 addr) put_unaligned_be32(addr, dest); } } -EXPORT_SYMBOL(store_cdrom_address); +EXPORT_SYMBOL_GPL(store_cdrom_address); /*-------------------------------------------------------------------------*/ @@ -325,13 +325,13 @@ ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf) ? curlun->ro : curlun->initially_ro); } -EXPORT_SYMBOL(fsg_show_ro); +EXPORT_SYMBOL_GPL(fsg_show_ro); ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf) { return sprintf(buf, "%u\n", curlun->nofua); } -EXPORT_SYMBOL(fsg_show_nofua); +EXPORT_SYMBOL_GPL(fsg_show_nofua); ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem, char *buf) @@ -357,19 +357,19 @@ ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem, up_read(filesem); return rc; } -EXPORT_SYMBOL(fsg_show_file); +EXPORT_SYMBOL_GPL(fsg_show_file); ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf) { return sprintf(buf, "%u\n", curlun->cdrom); } -EXPORT_SYMBOL(fsg_show_cdrom); +EXPORT_SYMBOL_GPL(fsg_show_cdrom); ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf) { return sprintf(buf, "%u\n", curlun->removable); } -EXPORT_SYMBOL(fsg_show_removable); +EXPORT_SYMBOL_GPL(fsg_show_removable); /* * The caller must hold fsg->filesem for reading when calling this function. @@ -410,7 +410,7 @@ ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem, return rc; } -EXPORT_SYMBOL(fsg_store_ro); +EXPORT_SYMBOL_GPL(fsg_store_ro); ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count) { @@ -429,7 +429,7 @@ ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count) return count; } -EXPORT_SYMBOL(fsg_store_nofua); +EXPORT_SYMBOL_GPL(fsg_store_nofua); ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem, const char *buf, size_t count) @@ -460,7 +460,7 @@ ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem, up_write(filesem); return (rc < 0 ? rc : count); } -EXPORT_SYMBOL(fsg_store_file); +EXPORT_SYMBOL_GPL(fsg_store_file); ssize_t fsg_store_cdrom(struct fsg_lun *curlun, struct rw_semaphore *filesem, const char *buf, size_t count) @@ -483,7 +483,7 @@ ssize_t fsg_store_cdrom(struct fsg_lun *curlun, struct rw_semaphore *filesem, return ret; } -EXPORT_SYMBOL(fsg_store_cdrom); +EXPORT_SYMBOL_GPL(fsg_store_cdrom); ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf, size_t count) @@ -499,6 +499,6 @@ ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf, return count; } -EXPORT_SYMBOL(fsg_store_removable); +EXPORT_SYMBOL_GPL(fsg_store_removable); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c index f058c0368d61..49481e0a3382 100644 --- a/drivers/usb/gadget/tcm_usb_gadget.c +++ b/drivers/usb/gadget/tcm_usb_gadget.c @@ -1383,10 +1383,8 @@ static struct se_node_acl *usbg_alloc_fabric_acl(struct se_portal_group *se_tpg) struct usbg_nacl *nacl; nacl = kzalloc(sizeof(struct usbg_nacl), GFP_KERNEL); - if (!nacl) { - printk(KERN_ERR "Unable to allocate struct usbg_nacl\n"); + if (!nacl) return NULL; - } return &nacl->se_node_acl; } @@ -1561,10 +1559,8 @@ static struct se_portal_group *usbg_make_tpg( } tpg = kzalloc(sizeof(struct usbg_tpg), GFP_KERNEL); - if (!tpg) { - printk(KERN_ERR "Unable to allocate struct usbg_tpg"); + if (!tpg) return ERR_PTR(-ENOMEM); - } mutex_init(&tpg->tpg_mutex); atomic_set(&tpg->tpg_port_count, 0); tpg->workqueue = alloc_workqueue("tcm_usb_gadget", 0, 1); @@ -1613,10 +1609,8 @@ static struct se_wwn *usbg_make_tport( return ERR_PTR(-EINVAL); tport = kzalloc(sizeof(struct usbg_tport), GFP_KERNEL); - if (!(tport)) { - printk(KERN_ERR "Unable to allocate struct usbg_tport"); + if (!(tport)) return ERR_PTR(-ENOMEM); - } tport->tport_wwpn = wwpn; snprintf(tport->tport_name, sizeof(tport->tport_name), "%s", wnn_name); return &tport->tport_wwn; @@ -1727,10 +1721,8 @@ static int tcm_usbg_make_nexus(struct usbg_tpg *tpg, char *name) ret = -ENOMEM; tv_nexus = kzalloc(sizeof(*tv_nexus), GFP_KERNEL); - if (!tv_nexus) { - pr_err("Unable to allocate struct tcm_vhost_nexus\n"); + if (!tv_nexus) goto err_unlock; - } tv_nexus->tvn_se_sess = transport_init_session(TARGET_PROT_NORMAL); if (IS_ERR(tv_nexus->tvn_se_sess)) goto err_free; diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index b7d4f82872b7..fe0880d0873e 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -818,7 +818,7 @@ struct eth_dev *gether_setup_name(struct usb_gadget *g, return dev; } -EXPORT_SYMBOL(gether_setup_name); +EXPORT_SYMBOL_GPL(gether_setup_name); struct net_device *gether_setup_name_default(const char *netname) { @@ -855,7 +855,7 @@ struct net_device *gether_setup_name_default(const char *netname) return net; } -EXPORT_SYMBOL(gether_setup_name_default); +EXPORT_SYMBOL_GPL(gether_setup_name_default); int gether_register_netdev(struct net_device *net) { @@ -893,7 +893,7 @@ int gether_register_netdev(struct net_device *net) return status; } -EXPORT_SYMBOL(gether_register_netdev); +EXPORT_SYMBOL_GPL(gether_register_netdev); void gether_set_gadget(struct net_device *net, struct usb_gadget *g) { @@ -903,7 +903,7 @@ void gether_set_gadget(struct net_device *net, struct usb_gadget *g) dev->gadget = g; SET_NETDEV_DEV(net, &g->dev); } -EXPORT_SYMBOL(gether_set_gadget); +EXPORT_SYMBOL_GPL(gether_set_gadget); int gether_set_dev_addr(struct net_device *net, const char *dev_addr) { @@ -916,7 +916,7 @@ int gether_set_dev_addr(struct net_device *net, const char *dev_addr) memcpy(dev->dev_mac, new_addr, ETH_ALEN); return 0; } -EXPORT_SYMBOL(gether_set_dev_addr); +EXPORT_SYMBOL_GPL(gether_set_dev_addr); int gether_get_dev_addr(struct net_device *net, char *dev_addr, int len) { @@ -925,7 +925,7 @@ int gether_get_dev_addr(struct net_device *net, char *dev_addr, int len) dev = netdev_priv(net); return get_ether_addr_str(dev->dev_mac, dev_addr, len); } -EXPORT_SYMBOL(gether_get_dev_addr); +EXPORT_SYMBOL_GPL(gether_get_dev_addr); int gether_set_host_addr(struct net_device *net, const char *host_addr) { @@ -938,7 +938,7 @@ int gether_set_host_addr(struct net_device *net, const char *host_addr) memcpy(dev->host_mac, new_addr, ETH_ALEN); return 0; } -EXPORT_SYMBOL(gether_set_host_addr); +EXPORT_SYMBOL_GPL(gether_set_host_addr); int gether_get_host_addr(struct net_device *net, char *host_addr, int len) { @@ -947,7 +947,7 @@ int gether_get_host_addr(struct net_device *net, char *host_addr, int len) dev = netdev_priv(net); return get_ether_addr_str(dev->host_mac, host_addr, len); } -EXPORT_SYMBOL(gether_get_host_addr); +EXPORT_SYMBOL_GPL(gether_get_host_addr); int gether_get_host_addr_cdc(struct net_device *net, char *host_addr, int len) { @@ -961,7 +961,7 @@ int gether_get_host_addr_cdc(struct net_device *net, char *host_addr, int len) return strlen(host_addr); } -EXPORT_SYMBOL(gether_get_host_addr_cdc); +EXPORT_SYMBOL_GPL(gether_get_host_addr_cdc); void gether_get_host_addr_u8(struct net_device *net, u8 host_mac[ETH_ALEN]) { @@ -970,7 +970,7 @@ void gether_get_host_addr_u8(struct net_device *net, u8 host_mac[ETH_ALEN]) dev = netdev_priv(net); memcpy(host_mac, dev->host_mac, ETH_ALEN); } -EXPORT_SYMBOL(gether_get_host_addr_u8); +EXPORT_SYMBOL_GPL(gether_get_host_addr_u8); void gether_set_qmult(struct net_device *net, unsigned qmult) { @@ -979,7 +979,7 @@ void gether_set_qmult(struct net_device *net, unsigned qmult) dev = netdev_priv(net); dev->qmult = qmult; } -EXPORT_SYMBOL(gether_set_qmult); +EXPORT_SYMBOL_GPL(gether_set_qmult); unsigned gether_get_qmult(struct net_device *net) { @@ -988,7 +988,7 @@ unsigned gether_get_qmult(struct net_device *net) dev = netdev_priv(net); return dev->qmult; } -EXPORT_SYMBOL(gether_get_qmult); +EXPORT_SYMBOL_GPL(gether_get_qmult); int gether_get_ifname(struct net_device *net, char *name, int len) { @@ -997,7 +997,7 @@ int gether_get_ifname(struct net_device *net, char *name, int len) rtnl_unlock(); return strlen(name); } -EXPORT_SYMBOL(gether_get_ifname); +EXPORT_SYMBOL_GPL(gether_get_ifname); /** * gether_cleanup - remove Ethernet-over-USB device @@ -1014,7 +1014,7 @@ void gether_cleanup(struct eth_dev *dev) flush_work(&dev->work); free_netdev(dev->net); } -EXPORT_SYMBOL(gether_cleanup); +EXPORT_SYMBOL_GPL(gether_cleanup); /** * gether_connect - notify network layer that USB link is active @@ -1095,7 +1095,7 @@ fail0: return ERR_PTR(result); return dev->net; } -EXPORT_SYMBOL(gether_connect); +EXPORT_SYMBOL_GPL(gether_connect); /** * gether_disconnect - notify network layer that USB link is inactive @@ -1166,7 +1166,7 @@ void gether_disconnect(struct gether *link) dev->port_usb = NULL; spin_unlock(&dev->lock); } -EXPORT_SYMBOL(gether_disconnect); +EXPORT_SYMBOL_GPL(gether_disconnect); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/u_f.c b/drivers/usb/gadget/u_f.c index 63b6642c162b..c6276f0268ae 100644 --- a/drivers/usb/gadget/u_f.c +++ b/drivers/usb/gadget/u_f.c @@ -29,4 +29,4 @@ struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len) } return req; } -EXPORT_SYMBOL(alloc_ep_req); +EXPORT_SYMBOL_GPL(alloc_ep_req); diff --git a/drivers/usb/gadget/u_f.h b/drivers/usb/gadget/u_f.h index 71034c061fca..1d5f0eb68552 100644 --- a/drivers/usb/gadget/u_f.h +++ b/drivers/usb/gadget/u_f.h @@ -16,6 +16,32 @@ #ifndef __U_F_H__ #define __U_F_H__ +/* Variable Length Array Macros **********************************************/ +#define vla_group(groupname) size_t groupname##__next = 0 +#define vla_group_size(groupname) groupname##__next + +#define vla_item(groupname, type, name, n) \ + size_t groupname##_##name##__offset = ({ \ + size_t align_mask = __alignof__(type) - 1; \ + size_t offset = (groupname##__next + align_mask) & ~align_mask;\ + size_t size = (n) * sizeof(type); \ + groupname##__next = offset + size; \ + offset; \ + }) + +#define vla_item_with_sz(groupname, type, name, n) \ + size_t groupname##_##name##__sz = (n) * sizeof(type); \ + size_t groupname##_##name##__offset = ({ \ + size_t align_mask = __alignof__(type) - 1; \ + size_t offset = (groupname##__next + align_mask) & ~align_mask;\ + size_t size = groupname##_##name##__sz; \ + groupname##__next = offset + size; \ + offset; \ + }) + +#define vla_ptr(ptr, groupname, name) \ + ((void *) ((char *)ptr + groupname##_##name##__offset)) + struct usb_ep; struct usb_request; diff --git a/drivers/usb/gadget/u_os_desc.h b/drivers/usb/gadget/u_os_desc.h new file mode 100644 index 000000000000..ea5cf8c2da28 --- /dev/null +++ b/drivers/usb/gadget/u_os_desc.h @@ -0,0 +1,90 @@ +/* + * u_os_desc.h + * + * Utility definitions for "OS Descriptors" support + * + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __U_OS_DESC_H__ +#define __U_OS_DESC_H__ + +#include <asm/unaligned.h> +#include <linux/nls.h> + +#define USB_EXT_PROP_DW_SIZE 0 +#define USB_EXT_PROP_DW_PROPERTY_DATA_TYPE 4 +#define USB_EXT_PROP_W_PROPERTY_NAME_LENGTH 8 +#define USB_EXT_PROP_B_PROPERTY_NAME 10 +#define USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH 10 +#define USB_EXT_PROP_B_PROPERTY_DATA 14 + +#define USB_EXT_PROP_RESERVED 0 +#define USB_EXT_PROP_UNICODE 1 +#define USB_EXT_PROP_UNICODE_ENV 2 +#define USB_EXT_PROP_BINARY 3 +#define USB_EXT_PROP_LE32 4 +#define USB_EXT_PROP_BE32 5 +#define USB_EXT_PROP_UNICODE_LINK 6 +#define USB_EXT_PROP_UNICODE_MULTI 7 + +static inline void usb_ext_prop_put_size(u8 *buf, int dw_size) +{ + put_unaligned_le32(dw_size, &buf[USB_EXT_PROP_DW_SIZE]); +} + +static inline void usb_ext_prop_put_type(u8 *buf, int type) +{ + put_unaligned_le32(type, &buf[USB_EXT_PROP_DW_PROPERTY_DATA_TYPE]); +} + +static inline int usb_ext_prop_put_name(u8 *buf, const char *name, int pnl) +{ + int result; + + put_unaligned_le16(pnl, &buf[USB_EXT_PROP_W_PROPERTY_NAME_LENGTH]); + result = utf8s_to_utf16s(name, strlen(name), UTF16_LITTLE_ENDIAN, + (wchar_t *) &buf[USB_EXT_PROP_B_PROPERTY_NAME], pnl - 2); + if (result < 0) + return result; + + put_unaligned_le16(0, &buf[USB_EXT_PROP_B_PROPERTY_NAME + pnl]); + + return pnl; +} + +static inline void usb_ext_prop_put_binary(u8 *buf, int pnl, const u8 *data, + int data_len) +{ + put_unaligned_le32(data_len, + &buf[USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH + pnl]); + memcpy(&buf[USB_EXT_PROP_B_PROPERTY_DATA + pnl], data, data_len); +} + +static inline int usb_ext_prop_put_unicode(u8 *buf, int pnl, const char *string, + int data_len) +{ + int result; + put_unaligned_le32(data_len, + &buf[USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH + pnl]); + + result = utf8s_to_utf16s(string, data_len >> 1, UTF16_LITTLE_ENDIAN, + (wchar_t *) &buf[USB_EXT_PROP_B_PROPERTY_DATA + pnl], + data_len - 2); + if (result < 0) + return result; + + put_unaligned_le16(0, + &buf[USB_EXT_PROP_B_PROPERTY_DATA + pnl + data_len]); + + return data_len; +} + +#endif /* __U_OS_DESC_H__ */ diff --git a/drivers/usb/gadget/u_rndis.h b/drivers/usb/gadget/u_rndis.h index 7291b15c9dce..e902aa42a297 100644 --- a/drivers/usb/gadget/u_rndis.h +++ b/drivers/usb/gadget/u_rndis.h @@ -26,6 +26,9 @@ struct f_rndis_opts { bool bound; bool borrowed_net; + struct usb_os_desc rndis_os_desc; + char rndis_ext_compat_id[16]; + /* * Read/write access to configfs attributes is handled by configfs. * diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 27768a7d986a..b0d98172bc07 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -428,6 +428,8 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) list_for_each_entry(udc, &udc_list, list) if (udc->driver == driver) { usb_gadget_remove_driver(udc); + usb_gadget_set_state(udc->gadget, + USB_STATE_NOTATTACHED); ret = 0; break; } diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index 0bb5d50075de..1c29bc954db9 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -20,6 +20,7 @@ #include <linux/vmalloc.h> #include <linux/wait.h> +#include <media/v4l2-common.h> #include <media/videobuf2-vmalloc.h> #include "uvc.h" @@ -136,6 +137,8 @@ static int uvc_queue_init(struct uvc_video_queue *queue, queue->queue.buf_struct_size = sizeof(struct uvc_buffer); queue->queue.ops = &uvc_queue_qops; queue->queue.mem_ops = &vb2_vmalloc_memops; + queue->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC + | V4L2_BUF_FLAG_TSTAMP_SRC_EOF; ret = vb2_queue_init(&queue->queue); if (ret) return ret; @@ -379,14 +382,9 @@ static struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, else nextbuf = NULL; - /* - * FIXME: with videobuf2, the sequence number or timestamp fields - * are valid only for video capture devices and the UVC gadget usually - * is a video output device. Keeping these until the specs are clear on - * this aspect. - */ + buf->buf.v4l2_buf.field = V4L2_FIELD_NONE; buf->buf.v4l2_buf.sequence = queue->sequence++; - do_gettimeofday(&buf->buf.v4l2_buf.timestamp); + v4l2_get_timestamp(&buf->buf.v4l2_buf.timestamp); vb2_set_plane_payload(&buf->buf, 0, buf->bytesused); vb2_buffer_done(&buf->buf, VB2_BUF_STATE_DONE); |
