* Fixed DEF_TX value that caused the serial transmitter pin (txd) to go to 0 when
* closing the last filehandle, NASTY!.
* Added break generation, not tested though!
- * Use SA_SHIRQ when request_irq() for ser2 and ser3 (shared with) par0 and par1.
+ * Use IRQF_SHARED when request_irq() for ser2 and ser3 (shared with) par0 and par1.
* You can't use them at the same time (yet..), but you can hopefully switch
* between ser2/par0, ser3/par1 with the same kernel config.
* Replaced some magic constants with defines
static char *serial_version = "$Revision: 1.25 $";
-#include <linux/config.h>
-#include <linux/version.h>
-
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <linux/kernel.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
-#include <asm/segment.h>
#include <asm/bitops.h>
#include <linux/delay.h>
#include "serial_compat.h"
#endif
-#define _INLINE_ inline
-
struct tty_driver *serial_driver;
/* serial subtype definitions */
static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
static int rs_write(struct tty_struct * tty, int from_user,
const unsigned char *buf, int count);
-extern _INLINE_ int rs_raw_write(struct tty_struct * tty, int from_user,
- const unsigned char *buf, int count);
#ifdef CONFIG_ETRAX_RS485
static int e100_write_rs485(struct tty_struct * tty, int from_user,
const unsigned char *buf, int count);
#define NR_PORTS (sizeof(rs_table)/sizeof(struct e100_serial))
-static struct termios *serial_termios[NR_PORTS];
-static struct termios *serial_termios_locked[NR_PORTS];
+static struct ktermios *serial_termios[NR_PORTS];
+static struct ktermios *serial_termios_locked[NR_PORTS];
#ifdef CONFIG_ETRAX_SERIAL_FAST_TIMER
static struct fast_timer fast_timers[NR_PORTS];
#endif
* 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)
/* the tx DMA uses only dma_descr interrupt */
-static _INLINE_ void
-e100_disable_txdma_irq(struct e100_serial *info)
+static void e100_disable_txdma_irq(struct e100_serial *info)
{
#ifdef SERIAL_DEBUG_INTR
printk("txdma_irq(%d): 0\n",info->line);
*R_IRQ_MASK2_CLR = info->irq;
}
-static _INLINE_ void
-e100_enable_txdma_irq(struct e100_serial *info)
+static void e100_enable_txdma_irq(struct e100_serial *info)
{
#ifdef SERIAL_DEBUG_INTR
printk("txdma_irq(%d): 1\n",info->line);
*R_IRQ_MASK2_SET = info->irq;
}
-static _INLINE_ void
-e100_disable_txdma_channel(struct e100_serial *info)
+static void e100_disable_txdma_channel(struct e100_serial *info)
{
unsigned long flags;
}
-static _INLINE_ void
-e100_enable_txdma_channel(struct e100_serial *info)
+static void e100_enable_txdma_channel(struct e100_serial *info)
{
unsigned long flags;
restore_flags(flags);
}
-static _INLINE_ void
-e100_disable_rxdma_channel(struct e100_serial *info)
+static void e100_disable_rxdma_channel(struct e100_serial *info)
{
unsigned long flags;
}
-static _INLINE_ void
-e100_enable_rxdma_channel(struct e100_serial *info)
+static void e100_enable_rxdma_channel(struct e100_serial *info)
{
unsigned long flags;
* This routine is used by the interrupt handler to schedule
* processing in the software interrupt portion of the driver.
*/
-static _INLINE_ void
-rs_sched_event(struct e100_serial *info,
- int event)
+static void rs_sched_event(struct e100_serial *info, int event)
{
if (info->event & (1 << event))
return;
return 1;
}
-extern _INLINE_ unsigned int
-handle_descr_data(struct e100_serial *info, struct etrax_dma_descr *descr, unsigned int recvl)
+static unsigned int handle_descr_data(struct e100_serial *info,
+ struct etrax_dma_descr *descr,
+ unsigned int recvl)
{
struct etrax_recv_buffer *buffer = phys_to_virt(descr->buf) - sizeof *buffer;
return recvl;
}
-static _INLINE_ unsigned int
-handle_all_descr_data(struct e100_serial *info)
+static unsigned int handle_all_descr_data(struct e100_serial *info)
{
struct etrax_dma_descr *descr;
unsigned int recvl;
return ret;
}
-static _INLINE_ void
-receive_chars_dma(struct e100_serial *info)
+static void receive_chars_dma(struct e100_serial *info)
{
struct tty_struct *tty;
unsigned char rstat;
*info->icmdadr = IO_STATE(R_DMA_CH6_CMD, cmd, restart);
}
-static _INLINE_ int
-start_recv_dma(struct e100_serial *info)
+static int start_recv_dma(struct e100_serial *info)
{
struct etrax_dma_descr *descr = info->rec_descr;
struct etrax_recv_buffer *buffer;
}
-static _INLINE_ void
-status_handle(struct e100_serial *info, unsigned short status)
-{
-}
-
/* the bits in the MASK2 register are laid out like this:
DMAI_EOP DMAI_DESCR DMAO_EOP DMAO_DESCR
where I is the input channel and O is the output channel for the port.
*/
static irqreturn_t
-tr_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+tr_interrupt(int irq, void *dev_id)
{
struct e100_serial *info;
unsigned long ireg;
/* dma input channel interrupt handler */
static irqreturn_t
-rec_interrupt(int irq, void *dev_id, struct pt_regs * regs)
+rec_interrupt(int irq, void *dev_id)
{
struct e100_serial *info;
unsigned long ireg;
return IRQ_RETVAL(handled);
} /* rec_interrupt */
-static _INLINE_ int
-force_eop_if_needed(struct e100_serial *info)
+static int force_eop_if_needed(struct e100_serial *info)
{
/* We check data_avail bit to determine if data has
* arrived since last time
return 1;
}
-extern _INLINE_ void
-flush_to_flip_buffer(struct e100_serial *info)
+static void flush_to_flip_buffer(struct e100_serial *info)
{
struct tty_struct *tty;
struct etrax_recv_buffer *buffer;
DFLIP(
if (1) {
-
- if (test_bit(TTY_DONT_FLIP, &tty->flags)) {
- DEBUG_LOG(info->line, "*** TTY_DONT_FLIP set flip.count %i ***\n", tty->flip.count);
- DEBUG_LOG(info->line, "*** recv_cnt %i\n", info->recv_cnt);
- } else {
- }
DEBUG_LOG(info->line, "*** rxtot %i\n", info->icount.rx);
DEBUG_LOG(info->line, "ldisc %lu\n", tty->ldisc.chars_in_buffer(tty));
DEBUG_LOG(info->line, "room %lu\n", tty->ldisc.receive_room(tty));
tty_flip_buffer_push(tty);
}
-static _INLINE_ void
-check_flush_timeout(struct e100_serial *info)
+static void check_flush_timeout(struct e100_serial *info)
{
/* Flip what we've got (if we can) */
flush_to_flip_buffer(info);
*/
-extern _INLINE_
+static
struct e100_serial * handle_ser_rx_interrupt_no_dma(struct e100_serial *info)
{
unsigned long data_read;
return info;
}
-extern _INLINE_
-struct e100_serial* handle_ser_rx_interrupt(struct e100_serial *info)
+static struct e100_serial* handle_ser_rx_interrupt(struct e100_serial *info)
{
unsigned char rstat;
return info;
} /* handle_ser_rx_interrupt */
-extern _INLINE_ void handle_ser_tx_interrupt(struct e100_serial *info)
+static void handle_ser_tx_interrupt(struct e100_serial *info)
{
unsigned long flags;
* ser_int duration: just sending: 8-15 us normally, up to 73 us
*/
static irqreturn_t
-ser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+ser_interrupt(int irq, void *dev_id)
{
static volatile int tx_started = 0;
struct e100_serial *info;
restore_flags(flags);
}
-extern _INLINE_ int
-rs_raw_write(struct tty_struct * tty, int from_user,
- const unsigned char *buf, int count)
+static int rs_raw_write(struct tty_struct * tty, int from_user,
+ const unsigned char *buf, int count)
{
int c, ret = 0;
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
* 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) {
e100_enable_rx_irq(info);
#endif
- if (info->rs485.delay_rts_before_send > 0) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout((info->rs485.delay_rts_before_send * HZ)/1000);
- }
+ if (info->rs485.delay_rts_before_send > 0)
+ msleep(info->rs485.delay_rts_before_send);
}
#endif /* CONFIG_ETRAX_RS485 */
}
static void
-rs_set_termios(struct tty_struct *tty, struct termios *old_termios)
+rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
{
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
info->event = 0;
info->tty = 0;
if (info->blocked_open) {
- if (info->close_delay) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(info->close_delay);
- }
+ if (info->close_delay)
+ schedule_timeout_interruptible(info->close_delay);
wake_up_interruptible(&info->open_wait);
}
info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
while (info->xmit.head != info->xmit.tail || /* More in send queue */
(*info->ostatusadr & 0x007f) || /* more in FIFO */
(elapsed_usec < 2*info->char_time_usec)) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(1);
+ schedule_timeout_interruptible(1);
if (signal_pending(current))
break;
if (timeout && time_after(jiffies, orig_jiffies + timeout))
* /proc fs routines....
*/
-extern _INLINE_ int line_info(char *buf, struct e100_serial *info)
+static int line_info(char *buf, struct e100_serial *info)
{
char stat_buf[30];
int ret;
/* rs_init inits the driver at boot (using the module_init chain) */
-static struct tty_operations rs_ops = {
+static const struct tty_operations rs_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
driver->init_termios = tty_std_termios;
driver->init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
- driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ driver->init_termios.c_ispeed = 115200;
+ driver->init_termios.c_ospeed = 115200;
+ driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
driver->termios = serial_termios;
driver->termios_locked = serial_termios_locked;
/* Not needed in simulator. May only complicate stuff. */
/* hook the irq's for DMA channel 6 and 7, serial output and input, and some more... */
- if (request_irq(SERIAL_IRQ_NBR, ser_interrupt, SA_SHIRQ | SA_INTERRUPT, "serial ", NULL))
+ if (request_irq(SERIAL_IRQ_NBR, ser_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial ", NULL))
panic("irq8");
#ifdef CONFIG_ETRAX_SERIAL_PORT0
#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
- if (request_irq(SER0_DMA_TX_IRQ_NBR, tr_interrupt, SA_INTERRUPT, "serial 0 dma tr", NULL))
+ if (request_irq(SER0_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_DISABLED, "serial 0 dma tr", NULL))
panic("irq22");
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
- if (request_irq(SER0_DMA_RX_IRQ_NBR, rec_interrupt, SA_INTERRUPT, "serial 0 dma rec", NULL))
+ if (request_irq(SER0_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_DISABLED, "serial 0 dma rec", NULL))
panic("irq23");
#endif
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT1
#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA8_OUT
- if (request_irq(SER1_DMA_TX_IRQ_NBR, tr_interrupt, SA_INTERRUPT, "serial 1 dma tr", NULL))
+ if (request_irq(SER1_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_DISABLED, "serial 1 dma tr", NULL))
panic("irq24");
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA9_IN
- if (request_irq(SER1_DMA_RX_IRQ_NBR, rec_interrupt, SA_INTERRUPT, "serial 1 dma rec", NULL))
+ if (request_irq(SER1_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_DISABLED, "serial 1 dma rec", NULL))
panic("irq25");
#endif
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT2
/* DMA Shared with par0 (and SCSI0 and ATA) */
#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
- if (request_irq(SER2_DMA_TX_IRQ_NBR, tr_interrupt, SA_SHIRQ | SA_INTERRUPT, "serial 2 dma tr", NULL))
+ if (request_irq(SER2_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 2 dma tr", NULL))
panic("irq18");
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
- if (request_irq(SER2_DMA_RX_IRQ_NBR, rec_interrupt, SA_SHIRQ | SA_INTERRUPT, "serial 2 dma rec", NULL))
+ if (request_irq(SER2_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 2 dma rec", NULL))
panic("irq19");
#endif
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT3
/* DMA Shared with par1 (and SCSI1 and Extern DMA 0) */
#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA4_OUT
- if (request_irq(SER3_DMA_TX_IRQ_NBR, tr_interrupt, SA_SHIRQ | SA_INTERRUPT, "serial 3 dma tr", NULL))
+ if (request_irq(SER3_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 3 dma tr", NULL))
panic("irq20");
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA5_IN
- if (request_irq(SER3_DMA_RX_IRQ_NBR, rec_interrupt, SA_SHIRQ | SA_INTERRUPT, "serial 3 dma rec", NULL))
+ if (request_irq(SER3_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 3 dma rec", NULL))
panic("irq21");
#endif
#endif
#ifdef CONFIG_ETRAX_SERIAL_FLUSH_DMA_FAST
- if (request_irq(TIMER1_IRQ_NBR, timeout_interrupt, SA_SHIRQ | SA_INTERRUPT,
+ if (request_irq(TIMER1_IRQ_NBR, timeout_interrupt, IRQF_SHARED | IRQF_DISABLED,
"fast serial dma timeout", NULL)) {
printk(KERN_CRIT "err: timer1 irq\n");
}
/* this makes sure that rs_init is called during kernel boot */
module_init(rs_init);
-
-/*
- * register_serial and unregister_serial allows for serial ports to be
- * configured at run-time, to support PCMCIA modems.
- */
-int
-register_serial(struct serial_struct *req)
-{
- return -1;
-}
-
-void unregister_serial(int line)
-{
-}
git://git.onelab.eu / linux-2.6.git / blobdiff