diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/8250_pci.c | 5 | ||||
| -rw-r--r-- | drivers/serial/bfin_5xx.c | 31 | ||||
| -rw-r--r-- | drivers/serial/kgdboc.c | 59 |
3 files changed, 85 insertions, 10 deletions
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index 53be4d35a0aa..842e3b2a02b1 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -2285,6 +2285,8 @@ static struct pciserial_board pci_boards[] __devinitdata = { static const struct pci_device_id softmodem_blacklist[] = { { PCI_VDEVICE(AL, 0x5457), }, /* ALi Corporation M5457 AC'97 Modem */ + { PCI_VDEVICE(MOTOROLA, 0x3052), }, /* Motorola Si3052-based modem */ + { PCI_DEVICE(0x1543, 0x3052), }, /* Si3052-based modem, default IDs */ }; /* @@ -2863,6 +2865,9 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_QUARTET_SERIAL, 0, 0, pbn_b0_4_1152000 }, + { PCI_VENDOR_ID_OXSEMI, 0x9505, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, + pbn_b0_bt_2_921600 }, /* * The below card is a little controversial since it is the diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index a9eff2b18eab..19cac9f610fd 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -23,6 +23,7 @@ #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/serial_core.h> +#include <linux/dma-mapping.h> #if defined(CONFIG_KGDB_SERIAL_CONSOLE) || \ defined(CONFIG_KGDB_SERIAL_CONSOLE_MODULE) @@ -33,12 +34,10 @@ #include <asm/gpio.h> #include <mach/bfin_serial_5xx.h> -#ifdef CONFIG_SERIAL_BFIN_DMA -#include <linux/dma-mapping.h> +#include <asm/dma.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/cacheflush.h> -#endif #ifdef CONFIG_SERIAL_BFIN_MODULE # undef CONFIG_EARLY_PRINTK @@ -360,7 +359,6 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart) UART_PUT_CHAR(uart, xmit->buf[xmit->tail]); xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); uart->port.icount.tx++; - SSYNC(); } if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) @@ -688,6 +686,13 @@ static int bfin_serial_startup(struct uart_port *port) # ifdef CONFIG_BF54x { + /* + * UART2 and UART3 on BF548 share interrupt PINs and DMA + * controllers with SPORT2 and SPORT3. UART rx and tx + * interrupts are generated in PIO mode only when configure + * their peripheral mapping registers properly, which means + * request corresponding DMA channels in PIO mode as well. + */ unsigned uart_dma_ch_rx, uart_dma_ch_tx; switch (uart->port.irq) { @@ -734,8 +739,7 @@ static int bfin_serial_startup(struct uart_port *port) IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_DISABLED, "BFIN_UART_CTS", uart)) { uart->cts_pin = -1; - pr_info("Unable to attach BlackFin UART CTS interrupt.\ - So, disable it.\n"); + pr_info("Unable to attach BlackFin UART CTS interrupt. So, disable it.\n"); } } if (uart->rts_pin >= 0) { @@ -747,8 +751,7 @@ static int bfin_serial_startup(struct uart_port *port) if (request_irq(uart->status_irq, bfin_serial_mctrl_cts_int, IRQF_DISABLED, "BFIN_UART_MODEM_STATUS", uart)) { - pr_info("Unable to attach BlackFin UART Modem \ - Status interrupt.\n"); + pr_info("Unable to attach BlackFin UART Modem Status interrupt.\n"); } /* CTS RTS PINs are negative assertive. */ @@ -846,6 +849,8 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios, if (termios->c_cflag & CMSPAR) lcr |= STP; + spin_lock_irqsave(&uart->port.lock, flags); + port->read_status_mask = OE; if (termios->c_iflag & INPCK) port->read_status_mask |= (FE | PE); @@ -875,8 +880,6 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios, if (termios->c_line != N_IRDA) quot -= ANOMALY_05000230; - spin_lock_irqsave(&uart->port.lock, flags); - UART_SET_ANOMALY_THRESHOLD(uart, USEC_PER_SEC / baud * 15); /* Disable UART */ @@ -1321,6 +1324,14 @@ struct console __init *bfin_earlyserial_init(unsigned int port, struct bfin_serial_port *uart; struct ktermios t; +#ifdef CONFIG_SERIAL_BFIN_CONSOLE + /* + * If we are using early serial, don't let the normal console rewind + * log buffer, since that causes things to be printed multiple times + */ + bfin_serial_console.flags &= ~CON_PRINTBUFFER; +#endif + if (port == -1 || port >= nr_active_ports) port = 0; bfin_serial_init_ports(); diff --git a/drivers/serial/kgdboc.c b/drivers/serial/kgdboc.c index d4b711c9a416..3374618300af 100644 --- a/drivers/serial/kgdboc.c +++ b/drivers/serial/kgdboc.c @@ -18,6 +18,7 @@ #include <linux/tty.h> #include <linux/console.h> #include <linux/vt_kern.h> +#include <linux/input.h> #define MAX_CONFIG_LEN 40 @@ -37,6 +38,61 @@ static struct tty_driver *kgdb_tty_driver; static int kgdb_tty_line; #ifdef CONFIG_KDB_KEYBOARD +static int kgdboc_reset_connect(struct input_handler *handler, + struct input_dev *dev, + const struct input_device_id *id) +{ + input_reset_device(dev); + + /* Retrun an error - we do not want to bind, just to reset */ + return -ENODEV; +} + +static void kgdboc_reset_disconnect(struct input_handle *handle) +{ + /* We do not expect anyone to actually bind to us */ + BUG(); +} + +static const struct input_device_id kgdboc_reset_ids[] = { + { + .flags = INPUT_DEVICE_ID_MATCH_EVBIT, + .evbit = { BIT_MASK(EV_KEY) }, + }, + { } +}; + +static struct input_handler kgdboc_reset_handler = { + .connect = kgdboc_reset_connect, + .disconnect = kgdboc_reset_disconnect, + .name = "kgdboc_reset", + .id_table = kgdboc_reset_ids, +}; + +static DEFINE_MUTEX(kgdboc_reset_mutex); + +static void kgdboc_restore_input_helper(struct work_struct *dummy) +{ + /* + * We need to take a mutex to prevent several instances of + * this work running on different CPUs so they don't try + * to register again already registered handler. + */ + mutex_lock(&kgdboc_reset_mutex); + + if (input_register_handler(&kgdboc_reset_handler) == 0) + input_unregister_handler(&kgdboc_reset_handler); + + mutex_unlock(&kgdboc_reset_mutex); +} + +static DECLARE_WORK(kgdboc_restore_input_work, kgdboc_restore_input_helper); + +static void kgdboc_restore_input(void) +{ + schedule_work(&kgdboc_restore_input_work); +} + static int kgdboc_register_kbd(char **cptr) { if (strncmp(*cptr, "kbd", 3) == 0) { @@ -64,10 +120,12 @@ static void kgdboc_unregister_kbd(void) i--; } } + flush_work_sync(&kgdboc_restore_input_work); } #else /* ! CONFIG_KDB_KEYBOARD */ #define kgdboc_register_kbd(x) 0 #define kgdboc_unregister_kbd() +#define kgdboc_restore_input() #endif /* ! CONFIG_KDB_KEYBOARD */ static int kgdboc_option_setup(char *opt) @@ -231,6 +289,7 @@ static void kgdboc_post_exp_handler(void) dbg_restore_graphics = 0; con_debug_leave(); } + kgdboc_restore_input(); } static struct kgdb_io kgdboc_io_ops = { |
