#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/nmi.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/irq.h>
* 16x50 serial ports to be configured at run-time, to support PCMCIA
* modems and PCI multiport cards.
*/
-static DECLARE_MUTEX(serial_sem);
+static DEFINE_MUTEX(serial_mutex);
static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port *port)
{
if (port->uartclk == 0)
return -EINVAL;
- down(&serial_sem);
+ mutex_lock(&serial_mutex);
uart = serial8250_find_match_or_unused(port);
if (uart) {
if (ret == 0)
ret = uart->port.line;
}
- up(&serial_sem);
+ mutex_unlock(&serial_mutex);
return ret;
}
{
struct uart_8250_port *uart = &serial8250_ports[line];
- down(&serial_sem);
+ mutex_lock(&serial_mutex);
uart_remove_one_port(&serial8250_reg, &uart->port);
if (serial8250_isa_devs) {
uart->port.flags &= ~UPF_BOOT_AUTOCONF;
} else {
uart->port.dev = NULL;
}
- up(&serial_sem);
+ mutex_unlock(&serial_mutex);
}
EXPORT_SYMBOL(serial8250_unregister_port);
#include <linux/init.h>
#include <asm/uaccess.h>
#include <linux/kernel.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/irq.h>
* memory if large numbers of serial ports are open.
*/
static unsigned char *tmp_buf;
-#ifdef DECLARE_MUTEX
-static DECLARE_MUTEX(tmp_buf_sem);
-#else
-static struct semaphore tmp_buf_sem = MUTEX;
-#endif
+static DEFINE_MUTEX(tmp_buf_mutex);
/* Calculate the chartime depending on baudrate, numbor of bits etc. */
static void update_char_time(struct e100_serial * info)
* design.
*/
if (from_user) {
- down(&tmp_buf_sem);
+ mutex_lock(&tmp_buf_mutex);
while (1) {
int c1;
c = CIRC_SPACE_TO_END(info->xmit.head,
count -= c;
ret += c;
}
- up(&tmp_buf_sem);
+ mutex_unlock(&tmp_buf_mutex);
} else {
cli();
while (count) {
#include <linux/pmu.h>
#include <linux/bitops.h>
#include <linux/sysrq.h>
+#include <linux/mutex.h>
#include <asm/sections.h>
#include <asm/io.h>
#include <asm/irq.h>
*/
static struct uart_pmac_port pmz_ports[MAX_ZS_PORTS];
static int pmz_ports_count;
-static DECLARE_MUTEX(pmz_irq_sem);
+static DEFINE_MUTEX(pmz_irq_mutex);
static struct uart_driver pmz_uart_reg = {
.owner = THIS_MODULE,
if (uap->node == NULL)
return -ENODEV;
- down(&pmz_irq_sem);
+ mutex_lock(&pmz_irq_mutex);
uap->flags |= PMACZILOG_FLAG_IS_OPEN;
dev_err(&uap->dev->ofdev.dev,
"Unable to register zs interrupt handler.\n");
pmz_set_scc_power(uap, 0);
- up(&pmz_irq_sem);
+ mutex_unlock(&pmz_irq_mutex);
return -ENXIO;
}
- up(&pmz_irq_sem);
+ mutex_unlock(&pmz_irq_mutex);
/* Right now, we deal with delay by blocking here, I'll be
* smarter later on
if (uap->node == NULL)
return;
- down(&pmz_irq_sem);
+ mutex_lock(&pmz_irq_mutex);
/* Release interrupt handler */
free_irq(uap->port.irq, uap);
if (ZS_IS_CONS(uap) || ZS_IS_ASLEEP(uap)) {
spin_unlock_irqrestore(&port->lock, flags);
- up(&pmz_irq_sem);
+ mutex_unlock(&pmz_irq_mutex);
return;
}
spin_unlock_irqrestore(&port->lock, flags);
- up(&pmz_irq_sem);
+ mutex_unlock(&pmz_irq_mutex);
pmz_debug("pmz: shutdown() done.\n");
}
state = pmz_uart_reg.state + uap->port.line;
- down(&pmz_irq_sem);
+ mutex_lock(&pmz_irq_mutex);
down(&state->sem);
spin_lock_irqsave(&uap->port.lock, flags);
pmz_set_scc_power(uap, 0);
up(&state->sem);
- up(&pmz_irq_sem);
+ mutex_unlock(&pmz_irq_mutex);
pmz_debug("suspend, switching complete\n");
state = pmz_uart_reg.state + uap->port.line;
- down(&pmz_irq_sem);
+ mutex_lock(&pmz_irq_mutex);
down(&state->sem);
spin_lock_irqsave(&uap->port.lock, flags);
bail:
up(&state->sem);
- up(&pmz_irq_sem);
+ mutex_unlock(&pmz_irq_mutex);
/* Right now, we deal with delay by blocking here, I'll be
* smarter later on
#include <linux/device.h>
#include <linux/serial.h> /* for serial_state and serial_icounter_struct */
#include <linux/delay.h>
+#include <linux/mutex.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
/*
* This is used to lock changes in serial line configuration.
*/
-static DECLARE_MUTEX(port_sem);
+static DEFINE_MUTEX(port_mutex);
#define HIGH_BITS_OFFSET ((sizeof(long)-sizeof(int))*8)
{
struct uart_state *state;
- down(&port_sem);
+ mutex_lock(&port_mutex);
state = drv->state + line;
if (down_interruptible(&state->sem)) {
state = ERR_PTR(-ERESTARTSYS);
}
out:
- up(&port_sem);
+ mutex_unlock(&port_mutex);
return state;
}
state = drv->state + port->line;
- down(&port_sem);
+ mutex_lock(&port_mutex);
if (state->port) {
ret = -EINVAL;
goto out;
register_console(port->cons);
out:
- up(&port_sem);
+ mutex_unlock(&port_mutex);
return ret;
}
printk(KERN_ALERT "Removing wrong port: %p != %p\n",
state->port, port);
- down(&port_sem);
+ mutex_lock(&port_mutex);
/*
* Remove the devices from devfs
uart_unconfigure_port(drv, state);
state->port = NULL;
- up(&port_sem);
+ mutex_unlock(&port_mutex);
return 0;
}
#include <linux/tty_flip.h>
#include <linux/serial_core.h>
#include <linux/serial.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/irq.h>
uart_resume_port(&serial_txx9_reg, &serial_txx9_ports[line].port);
}
-static DECLARE_MUTEX(serial_txx9_sem);
+static DEFINE_MUTEX(serial_txx9_mutex);
/**
* serial_txx9_register_port - register a serial port
struct uart_txx9_port *uart;
int ret = -ENOSPC;
- down(&serial_txx9_sem);
+ mutex_lock(&serial_txx9_mutex);
for (i = 0; i < UART_NR; i++) {
uart = &serial_txx9_ports[i];
if (uart->port.type == PORT_UNKNOWN)
if (ret == 0)
ret = uart->port.line;
}
- up(&serial_txx9_sem);
+ mutex_unlock(&serial_txx9_mutex);
return ret;
}
{
struct uart_txx9_port *uart = &serial_txx9_ports[line];
- down(&serial_txx9_sem);
+ mutex_lock(&serial_txx9_mutex);
uart_remove_one_port(&serial_txx9_reg, &uart->port);
uart->port.flags = 0;
uart->port.type = PORT_UNKNOWN;
uart->port.membase = 0;
uart->port.dev = NULL;
uart_add_one_port(&serial_txx9_reg, &uart->port);
- up(&serial_txx9_sem);
+ mutex_unlock(&serial_txx9_mutex);
}
/*
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff