diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/hvc/hvc_opal.c | 22 | ||||
| -rw-r--r-- | drivers/tty/serial/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 49 | ||||
| -rw-r--r-- | drivers/tty/tty_audit.c | 3 |
4 files changed, 55 insertions, 21 deletions
diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c index b01659bd4f7c..a585079b4b38 100644 --- a/drivers/tty/hvc/hvc_opal.c +++ b/drivers/tty/hvc/hvc_opal.c @@ -61,6 +61,7 @@ static struct hvc_opal_priv *hvc_opal_privs[MAX_NR_HVC_CONSOLES]; /* For early boot console */ static struct hvc_opal_priv hvc_opal_boot_priv; static u32 hvc_opal_boot_termno; +static bool hvc_opal_event_registered; static const struct hv_ops hvc_opal_raw_ops = { .get_chars = opal_get_chars, @@ -161,6 +162,18 @@ static const struct hv_ops hvc_opal_hvsi_ops = { .tiocmset = hvc_opal_hvsi_tiocmset, }; +static int hvc_opal_console_event(struct notifier_block *nb, + unsigned long events, void *change) +{ + if (events & OPAL_EVENT_CONSOLE_INPUT) + hvc_kick(); + return 0; +} + +static struct notifier_block hvc_opal_console_nb = { + .notifier_call = hvc_opal_console_event, +}; + static int hvc_opal_probe(struct platform_device *dev) { const struct hv_ops *ops; @@ -170,6 +183,7 @@ static int hvc_opal_probe(struct platform_device *dev) unsigned int termno, boot = 0; const __be32 *reg; + if (of_device_is_compatible(dev->dev.of_node, "ibm,opal-console-raw")) { proto = HV_PROTOCOL_RAW; ops = &hvc_opal_raw_ops; @@ -213,12 +227,18 @@ static int hvc_opal_probe(struct platform_device *dev) dev->dev.of_node->full_name, boot ? " (boot console)" : ""); - /* We don't do IRQ yet */ + /* We don't do IRQ ... */ hp = hvc_alloc(termno, 0, ops, MAX_VIO_PUT_CHARS); if (IS_ERR(hp)) return PTR_ERR(hp); dev_set_drvdata(&dev->dev, hp); + /* ... but we use OPAL event to kick the console */ + if (!hvc_opal_event_registered) { + opal_notifier_register(&hvc_opal_console_nb); + hvc_opal_event_registered = true; + } + return 0; } diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 2577d67bacb2..2e6d8ddc4425 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1024,7 +1024,7 @@ config SERIAL_SGI_IOC3 config SERIAL_MSM bool "MSM on-chip serial port support" - depends on ARCH_MSM + depends on ARCH_MSM || ARCH_QCOM select SERIAL_CORE config SERIAL_MSM_CONSOLE diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index b0603e1f7d82..53eeea13ff16 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -35,21 +35,18 @@ #include <linux/platform_device.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/of_gpio.h> #include <linux/dma-mapping.h> #include <linux/atmel_pdc.h> #include <linux/atmel_serial.h> #include <linux/uaccess.h> #include <linux/platform_data/atmel.h> #include <linux/timer.h> +#include <linux/gpio.h> #include <asm/io.h> #include <asm/ioctls.h> -#ifdef CONFIG_ARM -#include <mach/cpu.h> -#include <asm/gpio.h> -#endif - #define PDC_BUFFER_SIZE 512 /* Revisit: We should calculate this based on the actual port settings */ #define PDC_RX_TIMEOUT (3 * 10) /* 3 bytes */ @@ -165,6 +162,7 @@ struct atmel_uart_port { struct circ_buf rx_ring; struct serial_rs485 rs485; /* rs485 settings */ + int rts_gpio; /* optional RTS GPIO */ unsigned int tx_done_mask; bool is_usart; /* usart or uart */ struct timer_list uart_timer; /* uart timer */ @@ -298,20 +296,16 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) unsigned int mode; struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); -#ifdef CONFIG_ARCH_AT91RM9200 - if (cpu_is_at91rm9200()) { - /* - * AT91RM9200 Errata #39: RTS0 is not internally connected - * to PA21. We need to drive the pin manually. - */ - if (port->mapbase == AT91RM9200_BASE_US0) { - if (mctrl & TIOCM_RTS) - at91_set_gpio_value(AT91_PIN_PA21, 0); - else - at91_set_gpio_value(AT91_PIN_PA21, 1); - } + /* + * AT91RM9200 Errata #39: RTS0 is not internally connected + * to PA21. We need to drive the pin as a GPIO. + */ + if (gpio_is_valid(atmel_port->rts_gpio)) { + if (mctrl & TIOCM_RTS) + gpio_set_value(atmel_port->rts_gpio, 0); + else + gpio_set_value(atmel_port->rts_gpio, 1); } -#endif if (mctrl & TIOCM_RTS) control |= ATMEL_US_RTSEN; @@ -2365,6 +2359,25 @@ static int atmel_serial_probe(struct platform_device *pdev) port = &atmel_ports[ret]; port->backup_imr = 0; port->uart.line = ret; + port->rts_gpio = -EINVAL; /* Invalid, zero could be valid */ + if (pdata) + port->rts_gpio = pdata->rts_gpio; + else if (np) + port->rts_gpio = of_get_named_gpio(np, "rts-gpios", 0); + + if (gpio_is_valid(port->rts_gpio)) { + ret = devm_gpio_request(&pdev->dev, port->rts_gpio, "RTS"); + if (ret) { + dev_err(&pdev->dev, "error requesting RTS GPIO\n"); + goto err; + } + /* Default to 1 as RTS is active low */ + ret = gpio_direction_output(port->rts_gpio, 1); + if (ret) { + dev_err(&pdev->dev, "error setting up RTS GPIO\n"); + goto err; + } + } ret = atmel_init_port(port, pdev); if (ret) diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c index b0e540137e39..90ca082935f6 100644 --- a/drivers/tty/tty_audit.c +++ b/drivers/tty/tty_audit.c @@ -65,6 +65,7 @@ static void tty_audit_log(const char *description, int major, int minor, { struct audit_buffer *ab; struct task_struct *tsk = current; + pid_t pid = task_pid_nr(tsk); uid_t uid = from_kuid(&init_user_ns, task_uid(tsk)); uid_t loginuid = from_kuid(&init_user_ns, audit_get_loginuid(tsk)); unsigned int sessionid = audit_get_sessionid(tsk); @@ -74,7 +75,7 @@ static void tty_audit_log(const char *description, int major, int minor, char name[sizeof(tsk->comm)]; audit_log_format(ab, "%s pid=%u uid=%u auid=%u ses=%u major=%d" - " minor=%d comm=", description, tsk->pid, uid, + " minor=%d comm=", description, pid, uid, loginuid, sessionid, major, minor); get_task_comm(name, tsk); audit_log_untrustedstring(ab, name); |
