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提交 d12341f9 编写于 作者: J Jeff Garzik
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char/pcmcia/synclink_cs: trim trailing whitespace 

Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
上级 6bd3bd67
隐藏空白更改
内联 并排
Showing with 353 addition and 353 deletion
drivers/char/pcmcia/synclink_cs.c
浏览文件 @ d12341f9
......@@ -123,7 +123,7 @@ typedef struct
#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
struct _input_signal_events {
int ri_up;
int ri_up;
int ri_down;
int dsr_up;
int dsr_down;
......@@ -137,7 +137,7 @@ struct _input_signal_events {
/*
* Device instance data structure
*/
typedef struct _mgslpc_info {
void *if_ptr; /* General purpose pointer (used by SPPP) */
int magic;
......@@ -146,15 +146,15 @@ typedef struct _mgslpc_info {
int line;
unsigned short close_delay;
unsigned short closing_wait; /* time to wait before closing */
struct mgsl_icount icount;
struct tty_struct *tty;
int timeout;
int x_char; /* xon/xoff character */
int blocked_open; /* # of blocked opens */
unsigned char read_status_mask;
unsigned char ignore_status_mask;
unsigned char ignore_status_mask;
unsigned char *tx_buf;
int tx_put;
......@@ -170,10 +170,10 @@ typedef struct _mgslpc_info {
int rx_buf_size; /* size in bytes of single rx buffer */
int rx_buf_count; /* total number of rx buffers */
int rx_frame_count; /* number of full rx buffers */
wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
wait_queue_head_t status_event_wait_q;
wait_queue_head_t event_wait_q;
struct timer_list tx_timer; /* HDLC transmit timeout timer */
......@@ -192,7 +192,7 @@ typedef struct _mgslpc_info {
int bh_running;
int bh_requested;
int dcd_chkcount; /* check counts to prevent */
int cts_chkcount; /* too many IRQs if a signal */
int dsr_chkcount; /* is floating */
......@@ -212,7 +212,7 @@ typedef struct _mgslpc_info {
unsigned int io_base; /* base I/O address of adapter */
unsigned int irq_level;
MGSL_PARAMS params; /* communications parameters */
unsigned char serial_signals; /* current serial signal states */
......@@ -249,7 +249,7 @@ typedef struct _mgslpc_info {
*/
#define TXBUFSIZE 4096
#define CHA 0x00 /* channel A offset */
#define CHB 0x40 /* channel B offset */
......@@ -298,9 +298,9 @@ typedef struct _mgslpc_info {
#define PIM 0x3d
#define PCR 0x3e
#define CCR4 0x3f
// IMR/ISR
#define IRQ_BREAK_ON BIT15 // rx break detected
#define IRQ_DATAOVERRUN BIT14 // receive data overflow
#define IRQ_ALLSENT BIT13 // all sent
......@@ -315,13 +315,13 @@ typedef struct _mgslpc_info {
#define IRQ_DCD BIT2 // carrier detect status change
#define IRQ_OVERRUN BIT1 // receive frame overflow
#define IRQ_RXFIFO BIT0 // receive pool full
// STAR
#define XFW BIT6 // transmit FIFO write enable
#define CEC BIT2 // command executing
#define CTS BIT1 // CTS state
#define PVR_DTR BIT0
#define PVR_DSR BIT1
#define PVR_RI BIT2
......@@ -329,25 +329,25 @@ typedef struct _mgslpc_info {
#define PVR_RS232 0x20 /* 0010b */
#define PVR_V35 0xe0 /* 1110b */
#define PVR_RS422 0x40 /* 0100b */
/* Register access functions */
/* Register access functions */
#define write_reg(info, reg, val) outb((val),(info)->io_base + (reg))
#define read_reg(info, reg) inb((info)->io_base + (reg))
#define read_reg16(info, reg) inw((info)->io_base + (reg))
#define read_reg16(info, reg) inw((info)->io_base + (reg))
#define write_reg16(info, reg, val) outw((val), (info)->io_base + (reg))
#define set_reg_bits(info, reg, mask) \
write_reg(info, (reg), \
(unsigned char) (read_reg(info, (reg)) | (mask)))
(unsigned char) (read_reg(info, (reg)) | (mask)))
#define clear_reg_bits(info, reg, mask) \
write_reg(info, (reg), \
(unsigned char) (read_reg(info, (reg)) & ~(mask)))
(unsigned char) (read_reg(info, (reg)) & ~(mask)))
/*
* interrupt enable/disable routines
*/
static void irq_disable(MGSLPC_INFO *info, unsigned char channel, unsigned short mask)
*/
static void irq_disable(MGSLPC_INFO *info, unsigned char channel, unsigned short mask)
{
if (channel == CHA) {
info->imra_value |= mask;
......@@ -357,7 +357,7 @@ static void irq_disable(MGSLPC_INFO *info, unsigned char channel, unsigned short
write_reg16(info, CHB + IMR, info->imrb_value);
}
}
static void irq_enable(MGSLPC_INFO *info, unsigned char channel, unsigned short mask)
static void irq_enable(MGSLPC_INFO *info, unsigned char channel, unsigned short mask)
{
if (channel == CHA) {
info->imra_value &= ~mask;
......@@ -558,7 +558,7 @@ static int mgslpc_probe(struct pcmcia_device *link)
spin_lock_init(&info->lock);
spin_lock_init(&info->netlock);
memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
info->idle_mode = HDLC_TXIDLE_FLAGS;
info->idle_mode = HDLC_TXIDLE_FLAGS;
info->imra_value = 0xffff;
info->imrb_value = 0xffff;
info->pim_value = 0xff;
......@@ -600,7 +600,7 @@ static int mgslpc_config(struct pcmcia_device *link)
u_char buf[64];
cistpl_cftable_entry_t dflt = { 0 };
cistpl_cftable_entry_t *cfg;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("mgslpc_config(0x%p)\n", link);
......@@ -624,7 +624,7 @@ static int mgslpc_config(struct pcmcia_device *link)
link->conf.ConfigIndex = cfg->index;
link->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
link->io.NumPorts1 = 0;
if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
......@@ -644,7 +644,7 @@ static int mgslpc_config(struct pcmcia_device *link)
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 8;
link->conf.Present = PRESENT_OPTION;
link->irq.Attributes |= IRQ_HANDLE_PRESENT;
link->irq.Handler = mgslpc_isr;
link->irq.Instance = info;
......@@ -753,10 +753,10 @@ static inline int mgslpc_paranoia_check(MGSLPC_INFO *info,
#define CMD_TXEOM BIT1 // transmit end message
#define CMD_TXRESET BIT0 // transmit reset
static BOOLEAN wait_command_complete(MGSLPC_INFO *info, unsigned char channel)
static BOOLEAN wait_command_complete(MGSLPC_INFO *info, unsigned char channel)
{
int i = 0;
/* wait for command completion */
/* wait for command completion */
while (read_reg(info, (unsigned char)(channel+STAR)) & BIT2) {
udelay(1);
if (i++ == 1000)
......@@ -765,7 +765,7 @@ static BOOLEAN wait_command_complete(MGSLPC_INFO *info, unsigned char channel)
return TRUE;
}
static void issue_command(MGSLPC_INFO *info, unsigned char channel, unsigned char cmd)
static void issue_command(MGSLPC_INFO *info, unsigned char channel, unsigned char cmd)
{
wait_command_complete(info, channel);
write_reg(info, (unsigned char) (channel + CMDR), cmd);
......@@ -775,12 +775,12 @@ static void tx_pause(struct tty_struct *tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (mgslpc_paranoia_check(info, tty->name, "tx_pause"))
return;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("tx_pause(%s)\n",info->device_name);
printk("tx_pause(%s)\n",info->device_name);
spin_lock_irqsave(&info->lock,flags);
if (info->tx_enabled)
tx_stop(info);
......@@ -791,12 +791,12 @@ static void tx_release(struct tty_struct *tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (mgslpc_paranoia_check(info, tty->name, "tx_release"))
return;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("tx_release(%s)\n",info->device_name);
printk("tx_release(%s)\n",info->device_name);
spin_lock_irqsave(&info->lock,flags);
if (!info->tx_enabled)
tx_start(info);
......@@ -810,7 +810,7 @@ static int bh_action(MGSLPC_INFO *info)
{
unsigned long flags;
int rc = 0;
spin_lock_irqsave(&info->lock,flags);
if (info->pending_bh & BH_RECEIVE) {
......@@ -829,9 +829,9 @@ static int bh_action(MGSLPC_INFO *info)
info->bh_running = 0;
info->bh_requested = 0;
}
spin_unlock_irqrestore(&info->lock,flags);
return rc;
}
......@@ -842,22 +842,22 @@ static void bh_handler(struct work_struct *work)
if (!info)
return;
if (debug_level >= DEBUG_LEVEL_BH)
printk( "%s(%d):bh_handler(%s) entry\n",
__FILE__,__LINE__,info->device_name);
info->bh_running = 1;
while((action = bh_action(info)) != 0) {
/* Process work item */
if ( debug_level >= DEBUG_LEVEL_BH )
printk( "%s(%d):bh_handler() work item action=%d\n",
__FILE__,__LINE__,action);
switch (action) {
case BH_RECEIVE:
while(rx_get_frame(info));
break;
......@@ -897,7 +897,7 @@ static void bh_status(MGSLPC_INFO *info)
info->cts_chkcount = 0;
}
/* eom: non-zero = end of frame */
/* eom: non-zero = end of frame */
static void rx_ready_hdlc(MGSLPC_INFO *info, int eom)
{
unsigned char data[2];
......@@ -906,7 +906,7 @@ static void rx_ready_hdlc(MGSLPC_INFO *info, int eom)
if (debug_level >= DEBUG_LEVEL_ISR)
printk("%s(%d):rx_ready_hdlc(eom=%d)\n",__FILE__,__LINE__,eom);
if (!info->rx_enabled)
return;
......@@ -920,12 +920,12 @@ static void rx_ready_hdlc(MGSLPC_INFO *info, int eom)
}
if (eom) {
/* end of frame, get FIFO count from RBCL register */
/* end of frame, get FIFO count from RBCL register */
if (!(fifo_count = (unsigned char)(read_reg(info, CHA+RBCL) & 0x1f)))
fifo_count = 32;
} else
fifo_count = 32;
do {
if (fifo_count == 1) {
read_count = 1;
......@@ -969,7 +969,7 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd)
struct mgsl_icount *icount = &info->icount;
if (tcd) {
/* early termination, get FIFO count from RBCL register */
/* early termination, get FIFO count from RBCL register */
fifo_count = (unsigned char)(read_reg(info, CHA+RBCL) & 0x1f);
/* Zero fifo count could mean 0 or 32 bytes available.
......@@ -981,7 +981,7 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd)
fifo_count = 32;
tty_buffer_request_room(tty, fifo_count);
/* Flush received async data to receive data buffer. */
/* Flush received async data to receive data buffer. */
while (fifo_count) {
data = read_reg(info, CHA + RXFIFO);
status = read_reg(info, CHA + RXFIFO);
......@@ -995,7 +995,7 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd)
// BIT6:framing error
if (status & (BIT7 + BIT6)) {
if (status & BIT7)
if (status & BIT7)
icount->parity++;
else
icount->frame++;
......@@ -1003,7 +1003,7 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd)
/* discard char if tty control flags say so */
if (status & info->ignore_status_mask)
continue;
status &= info->read_status_mask;
if (status & BIT7)
......@@ -1022,7 +1022,7 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd)
__FILE__,__LINE__,icount->rx,icount->brk,
icount->parity,icount->frame,icount->overrun);
}
if (work)
tty_flip_buffer_push(tty);
}
......@@ -1032,7 +1032,7 @@ static void tx_done(MGSLPC_INFO *info)
{
if (!info->tx_active)
return;
info->tx_active = 0;
info->tx_aborting = 0;
......@@ -1040,8 +1040,8 @@ static void tx_done(MGSLPC_INFO *info)
return;
info->tx_count = info->tx_put = info->tx_get = 0;
del_timer(&info->tx_timer);
del_timer(&info->tx_timer);
if (info->drop_rts_on_tx_done) {
get_signals(info);
if (info->serial_signals & SerialSignal_RTS) {
......@@ -1054,7 +1054,7 @@ static void tx_done(MGSLPC_INFO *info)
#if SYNCLINK_GENERIC_HDLC
if (info->netcount)
hdlcdev_tx_done(info);
else
else
#endif
{
if (info->tty->stopped || info->tty->hw_stopped) {
......@@ -1090,7 +1090,7 @@ static void tx_ready(MGSLPC_INFO *info)
while (info->tx_count && fifo_count) {
c = min(2, min_t(int, fifo_count, min(info->tx_count, TXBUFSIZE - info->tx_get)));
if (c == 1) {
write_reg(info, CHA + TXFIFO, *(info->tx_buf + info->tx_get));
} else {
......@@ -1220,9 +1220,9 @@ static void ri_change(MGSLPC_INFO *info)
}
/* Interrupt service routine entry point.
*
*
* Arguments:
*
*
* irq interrupt number that caused interrupt
* dev_id device ID supplied during interrupt registration
*/
......@@ -1233,18 +1233,18 @@ static irqreturn_t mgslpc_isr(int irq, void *dev_id)
unsigned char gis, pis;
int count=0;
if (debug_level >= DEBUG_LEVEL_ISR)
if (debug_level >= DEBUG_LEVEL_ISR)
printk("mgslpc_isr(%d) entry.\n", irq);
if (!info)
return IRQ_NONE;
if (!(info->p_dev->_locked))
return IRQ_HANDLED;
spin_lock(&info->lock);
while ((gis = read_reg(info, CHA + GIS))) {
if (debug_level >= DEBUG_LEVEL_ISR)
if (debug_level >= DEBUG_LEVEL_ISR)
printk("mgslpc_isr %s gis=%04X\n", info->device_name,gis);
if ((gis & 0x70) || count > 1000) {
......@@ -1268,7 +1268,7 @@ static irqreturn_t mgslpc_isr(int irq, void *dev_id)
irq_disable(info, CHA, IRQ_TIMER);
}
/* receive IRQs */
/* receive IRQs */
if (isr & IRQ_EXITHUNT) {
info->icount.exithunt++;
wake_up_interruptible(&info->event_wait_q);
......@@ -1283,12 +1283,12 @@ static irqreturn_t mgslpc_isr(int irq, void *dev_id)
}
if (isr & (IRQ_RXEOM + IRQ_RXFIFO)) {
if (info->params.mode == MGSL_MODE_HDLC)
rx_ready_hdlc(info, isr & IRQ_RXEOM);
rx_ready_hdlc(info, isr & IRQ_RXEOM);
else
rx_ready_async(info, isr & IRQ_RXEOM);
}
/* transmit IRQs */
/* transmit IRQs */
if (isr & IRQ_UNDERRUN) {
if (info->tx_aborting)
info->icount.txabort++;
......@@ -1311,13 +1311,13 @@ static irqreturn_t mgslpc_isr(int irq, void *dev_id)
ri_change(info);
}
}
/* Request bottom half processing if there's something
/* Request bottom half processing if there's something
* for it to do and the bh is not already running
*/
if (info->pending_bh && !info->bh_running && !info->bh_requested) {
if ( debug_level >= DEBUG_LEVEL_ISR )
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("%s(%d):%s queueing bh task.\n",
__FILE__,__LINE__,info->device_name);
schedule_work(&info->task);
......@@ -1325,8 +1325,8 @@ static irqreturn_t mgslpc_isr(int irq, void *dev_id)
}
spin_unlock(&info->lock);
if (debug_level >= DEBUG_LEVEL_ISR)
if (debug_level >= DEBUG_LEVEL_ISR)
printk("%s(%d):mgslpc_isr(%d)exit.\n",
__FILE__,__LINE__,irq);
......@@ -1338,13 +1338,13 @@ static irqreturn_t mgslpc_isr(int irq, void *dev_id)
static int startup(MGSLPC_INFO * info)
{
int retval = 0;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):startup(%s)\n",__FILE__,__LINE__,info->device_name);
if (info->flags & ASYNC_INITIALIZED)
return 0;
if (!info->tx_buf) {
/* allocate a page of memory for a transmit buffer */
info->tx_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
......@@ -1356,18 +1356,18 @@ static int startup(MGSLPC_INFO * info)
}
info->pending_bh = 0;
memset(&info->icount, 0, sizeof(info->icount));
setup_timer(&info->tx_timer, tx_timeout, (unsigned long)info);
/* Allocate and claim adapter resources */
retval = claim_resources(info);
/* perform existance check and diagnostics */
if ( !retval )
retval = adapter_test(info);
if ( retval ) {
if (capable(CAP_SYS_ADMIN) && info->tty)
set_bit(TTY_IO_ERROR, &info->tty->flags);
......@@ -1377,12 +1377,12 @@ static int startup(MGSLPC_INFO * info)
/* program hardware for current parameters */
mgslpc_change_params(info);
if (info->tty)
clear_bit(TTY_IO_ERROR, &info->tty->flags);
info->flags |= ASYNC_INITIALIZED;
return 0;
}
......@@ -1391,7 +1391,7 @@ static int startup(MGSLPC_INFO * info)
static void shutdown(MGSLPC_INFO * info)
{
unsigned long flags;
if (!(info->flags & ASYNC_INITIALIZED))
return;
......@@ -1418,16 +1418,16 @@ static void shutdown(MGSLPC_INFO * info)
/* TODO:disable interrupts instead of reset to preserve signal states */
reset_device(info);
if (!info->tty || info->tty->termios->c_cflag & HUPCL) {
info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
set_signals(info);
}
spin_unlock_irqrestore(&info->lock,flags);
release_resources(info);
release_resources(info);
if (info->tty)
set_bit(TTY_IO_ERROR, &info->tty->flags);
......@@ -1439,18 +1439,18 @@ static void mgslpc_program_hw(MGSLPC_INFO *info)
unsigned long flags;
spin_lock_irqsave(&info->lock,flags);
rx_stop(info);
tx_stop(info);
info->tx_count = info->tx_put = info->tx_get = 0;
if (info->params.mode == MGSL_MODE_HDLC || info->netcount)
hdlc_mode(info);
else
async_mode(info);
set_signals(info);
info->dcd_chkcount = 0;
info->cts_chkcount = 0;
info->ri_chkcount = 0;
......@@ -1459,10 +1459,10 @@ static void mgslpc_program_hw(MGSLPC_INFO *info)
irq_enable(info, CHB, IRQ_DCD | IRQ_CTS);
port_irq_enable(info, (unsigned char) PVR_DSR | PVR_RI);
get_signals(info);
if (info->netcount || info->tty->termios->c_cflag & CREAD)
rx_start(info);
spin_unlock_irqrestore(&info->lock,flags);
}
......@@ -1475,11 +1475,11 @@ static void mgslpc_change_params(MGSLPC_INFO *info)
if (!info->tty || !info->tty->termios)
return;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_change_params(%s)\n",
__FILE__,__LINE__, info->device_name );
cflag = info->tty->termios->c_cflag;
/* if B0 rate (hangup) specified then negate DTR and RTS */
......@@ -1488,9 +1488,9 @@ static void mgslpc_change_params(MGSLPC_INFO *info)
info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
else
info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
/* byte size and parity */
switch (cflag & CSIZE) {
case CS5: info->params.data_bits = 5; break;
case CS6: info->params.data_bits = 6; break;
......@@ -1498,7 +1498,7 @@ static void mgslpc_change_params(MGSLPC_INFO *info)
case CS8: info->params.data_bits = 8; break;
default: info->params.data_bits = 7; break;
}
if (cflag & CSTOPB)
info->params.stop_bits = 2;
else
......@@ -1519,7 +1519,7 @@ static void mgslpc_change_params(MGSLPC_INFO *info)
/* calculate number of jiffies to transmit a full
* FIFO (32 bytes) at specified data rate
*/
bits_per_char = info->params.data_bits +
bits_per_char = info->params.data_bits +
info->params.stop_bits + 1;
/* if port data rate is set to 460800 or less then
......@@ -1529,9 +1529,9 @@ static void mgslpc_change_params(MGSLPC_INFO *info)
if (info->params.data_rate <= 460800) {
info->params.data_rate = tty_get_baud_rate(info->tty);
}
if ( info->params.data_rate ) {
info->timeout = (32*HZ*bits_per_char) /
info->timeout = (32*HZ*bits_per_char) /
info->params.data_rate;
}
info->timeout += HZ/50; /* Add .02 seconds of slop */
......@@ -1540,14 +1540,14 @@ static void mgslpc_change_params(MGSLPC_INFO *info)
info->flags |= ASYNC_CTS_FLOW;
else
info->flags &= ~ASYNC_CTS_FLOW;
if (cflag & CLOCAL)
info->flags &= ~ASYNC_CHECK_CD;
else
info->flags |= ASYNC_CHECK_CD;
/* process tty input control flags */
info->read_status_mask = 0;
if (I_INPCK(info->tty))
info->read_status_mask |= BIT7 | BIT6;
......@@ -1576,7 +1576,7 @@ static void mgslpc_put_char(struct tty_struct *tty, unsigned char ch)
return;
spin_lock_irqsave(&info->lock,flags);
if (info->params.mode == MGSL_MODE_ASYNC || !info->tx_active) {
if (info->tx_count < TXBUFSIZE - 1) {
info->tx_buf[info->tx_put++] = ch;
......@@ -1584,7 +1584,7 @@ static void mgslpc_put_char(struct tty_struct *tty, unsigned char ch)
info->tx_count++;
}
}
spin_unlock_irqrestore(&info->lock,flags);
}
......@@ -1595,11 +1595,11 @@ static void mgslpc_flush_chars(struct tty_struct *tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk( "%s(%d):mgslpc_flush_chars() entry on %s tx_count=%d\n",
__FILE__,__LINE__,info->device_name,info->tx_count);
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_flush_chars"))
return;
......@@ -1618,13 +1618,13 @@ static void mgslpc_flush_chars(struct tty_struct *tty)
}
/* Send a block of data
*
*
* Arguments:
*
*
* tty pointer to tty information structure
* buf pointer to buffer containing send data
* count size of send data in bytes
*
*
* Returns: number of characters written
*/
static int mgslpc_write(struct tty_struct * tty,
......@@ -1633,11 +1633,11 @@ static int mgslpc_write(struct tty_struct * tty,
int c, ret = 0;
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk( "%s(%d):mgslpc_write(%s) count=%d\n",
__FILE__,__LINE__,info->device_name,count);
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_write") ||
!info->tx_buf)
goto cleanup;
......@@ -1659,7 +1659,7 @@ static int mgslpc_write(struct tty_struct * tty,
TXBUFSIZE - info->tx_put));
if (c <= 0)
break;
memcpy(info->tx_buf + info->tx_put, buf, c);
spin_lock_irqsave(&info->lock,flags);
......@@ -1678,7 +1678,7 @@ static int mgslpc_write(struct tty_struct * tty,
tx_start(info);
spin_unlock_irqrestore(&info->lock,flags);
}
cleanup:
cleanup:
if (debug_level >= DEBUG_LEVEL_INFO)
printk( "%s(%d):mgslpc_write(%s) returning=%d\n",
__FILE__,__LINE__,info->device_name,ret);
......@@ -1691,7 +1691,7 @@ static int mgslpc_write_room(struct tty_struct *tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
int ret;
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_write_room"))
return 0;
......@@ -1706,7 +1706,7 @@ static int mgslpc_write_room(struct tty_struct *tty)
if (ret < 0)
ret = 0;
}
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_write_room(%s)=%d\n",
__FILE__,__LINE__, info->device_name, ret);
......@@ -1719,14 +1719,14 @@ static int mgslpc_chars_in_buffer(struct tty_struct *tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
int rc;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_chars_in_buffer(%s)\n",
__FILE__,__LINE__, info->device_name );
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_chars_in_buffer"))
return 0;
if (info->params.mode == MGSL_MODE_HDLC)
rc = info->tx_active ? info->max_frame_size : 0;
else
......@@ -1735,7 +1735,7 @@ static int mgslpc_chars_in_buffer(struct tty_struct *tty)
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_chars_in_buffer(%s)=%d\n",
__FILE__,__LINE__, info->device_name, rc);
return rc;
}
......@@ -1745,17 +1745,17 @@ static void mgslpc_flush_buffer(struct tty_struct *tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_flush_buffer(%s) entry\n",
__FILE__,__LINE__, info->device_name );
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_flush_buffer"))
return;
spin_lock_irqsave(&info->lock,flags);
spin_lock_irqsave(&info->lock,flags);
info->tx_count = info->tx_put = info->tx_get = 0;
del_timer(&info->tx_timer);
del_timer(&info->tx_timer);
spin_unlock_irqrestore(&info->lock,flags);
wake_up_interruptible(&tty->write_wait);
......@@ -1772,7 +1772,7 @@ static void mgslpc_send_xchar(struct tty_struct *tty, char ch)
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_send_xchar(%s,%d)\n",
__FILE__,__LINE__, info->device_name, ch );
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_send_xchar"))
return;
......@@ -1791,17 +1791,17 @@ static void mgslpc_throttle(struct tty_struct * tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_throttle(%s) entry\n",
__FILE__,__LINE__, info->device_name );
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_throttle"))
return;
if (I_IXOFF(tty))
mgslpc_send_xchar(tty, STOP_CHAR(tty));
if (tty->termios->c_cflag & CRTSCTS) {
spin_lock_irqsave(&info->lock,flags);
info->serial_signals &= ~SerialSignal_RTS;
......@@ -1816,21 +1816,21 @@ static void mgslpc_unthrottle(struct tty_struct * tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_unthrottle(%s) entry\n",
__FILE__,__LINE__, info->device_name );
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_unthrottle"))
return;
if (I_IXOFF(tty)) {
if (info->x_char)
info->x_char = 0;
else
mgslpc_send_xchar(tty, START_CHAR(tty));
}
if (tty->termios->c_cflag & CRTSCTS) {
spin_lock_irqsave(&info->lock,flags);
info->serial_signals |= SerialSignal_RTS;
......@@ -1870,9 +1870,9 @@ static int get_params(MGSLPC_INFO * info, MGSL_PARAMS __user *user_params)
}
/* set the serial parameters
*
*
* Arguments:
*
*
* info pointer to device instance data
* new_params user buffer containing new serial params
*
......@@ -1883,7 +1883,7 @@ static int set_params(MGSLPC_INFO * info, MGSL_PARAMS __user *new_params)
unsigned long flags;
MGSL_PARAMS tmp_params;
int err;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):set_params %s\n", __FILE__,__LINE__,
info->device_name );
......@@ -1894,13 +1894,13 @@ static int set_params(MGSLPC_INFO * info, MGSL_PARAMS __user *new_params)
__FILE__,__LINE__,info->device_name);
return -EFAULT;
}
spin_lock_irqsave(&info->lock,flags);
memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));
spin_unlock_irqrestore(&info->lock,flags);
mgslpc_change_params(info);
return 0;
}
......@@ -1963,10 +1963,10 @@ static int set_interface(MGSLPC_INFO * info, int if_mode)
static int set_txenable(MGSLPC_INFO * info, int enable)
{
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("set_txenable(%s,%d)\n", info->device_name, enable);
spin_lock_irqsave(&info->lock,flags);
if (enable) {
if (!info->tx_enabled)
......@@ -1982,10 +1982,10 @@ static int set_txenable(MGSLPC_INFO * info, int enable)
static int tx_abort(MGSLPC_INFO * info)
{
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("tx_abort(%s)\n", info->device_name);
spin_lock_irqsave(&info->lock,flags);
if (info->tx_active && info->tx_count &&
info->params.mode == MGSL_MODE_HDLC) {
......@@ -2002,10 +2002,10 @@ static int tx_abort(MGSLPC_INFO * info)
static int set_rxenable(MGSLPC_INFO * info, int enable)
{
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("set_rxenable(%s,%d)\n", info->device_name, enable);
spin_lock_irqsave(&info->lock,flags);
if (enable) {
if (!info->rx_enabled)
......@@ -2019,7 +2019,7 @@ static int set_rxenable(MGSLPC_INFO * info, int enable)
}
/* wait for specified event to occur
*
*
* Arguments: info pointer to device instance data
* mask pointer to bitmask of events to wait for
* Return Value: 0 if successful and bit mask updated with
......@@ -2040,7 +2040,7 @@ static int wait_events(MGSLPC_INFO * info, int __user *mask_ptr)
COPY_FROM_USER(rc,&mask, mask_ptr, sizeof(int));
if (rc)
return -EFAULT;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("wait_events(%s,%d)\n", info->device_name, mask);
......@@ -2062,24 +2062,24 @@ static int wait_events(MGSLPC_INFO * info, int __user *mask_ptr)
/* save current irq counts */
cprev = info->icount;
oldsigs = info->input_signal_events;
if ((info->params.mode == MGSL_MODE_HDLC) &&
(mask & MgslEvent_ExitHuntMode))
irq_enable(info, CHA, IRQ_EXITHUNT);
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&info->event_wait_q, &wait);
spin_unlock_irqrestore(&info->lock,flags);
for(;;) {
schedule();
if (signal_pending(current)) {
rc = -ERESTARTSYS;
break;
}
/* get current irq counts */
spin_lock_irqsave(&info->lock,flags);
cnow = info->icount;
......@@ -2115,11 +2115,11 @@ static int wait_events(MGSLPC_INFO * info, int __user *mask_ptr)
(cnow.rxidle != cprev.rxidle ? MgslEvent_IdleReceived:0) );
if (events)
break;
cprev = cnow;
oldsigs = newsigs;
}
remove_wait_queue(&info->event_wait_q, &wait);
set_current_state(TASK_RUNNING);
......@@ -2247,42 +2247,42 @@ static void mgslpc_break(struct tty_struct *tty, int break_state)
{
MGSLPC_INFO * info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_break(%s,%d)\n",
__FILE__,__LINE__, info->device_name, break_state);
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_break"))
return;
spin_lock_irqsave(&info->lock,flags);
if (break_state == -1)
set_reg_bits(info, CHA+DAFO, BIT6);
else
else
clear_reg_bits(info, CHA+DAFO, BIT6);
spin_unlock_irqrestore(&info->lock,flags);
}
/* Service an IOCTL request
*
*
* Arguments:
*
*
* tty pointer to tty instance data
* file pointer to associated file object for device
* cmd IOCTL command code
* arg command argument/context
*
*
* Return Value: 0 if success, otherwise error code
*/
static int mgslpc_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
MGSLPC_INFO * info = (MGSLPC_INFO *)tty->driver_data;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_ioctl %s cmd=%08X\n", __FILE__,__LINE__,
info->device_name, cmd );
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_ioctl"))
return -ENODEV;
......@@ -2302,7 +2302,7 @@ static int ioctl_common(MGSLPC_INFO *info, unsigned int cmd, unsigned long arg)
struct serial_icounter_struct __user *p_cuser; /* user space */
void __user *argp = (void __user *)arg;
unsigned long flags;
switch (cmd) {
case MGSL_IOCGPARAMS:
return get_params(info, argp);
......@@ -2363,9 +2363,9 @@ static int ioctl_common(MGSLPC_INFO *info, unsigned int cmd, unsigned long arg)
}
/* Set new termios settings
*
*
* Arguments:
*
*
* tty pointer to tty structure
* termios pointer to buffer to hold returned old termios
*/
......@@ -2373,14 +2373,14 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_set_termios %s\n", __FILE__,__LINE__,
tty->driver->name );
/* just return if nothing has changed */
if ((tty->termios->c_cflag == old_termios->c_cflag)
&& (RELEVANT_IFLAG(tty->termios->c_iflag)
&& (RELEVANT_IFLAG(tty->termios->c_iflag)
== RELEVANT_IFLAG(old_termios->c_iflag)))
return;
......@@ -2394,12 +2394,12 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
set_signals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
/* Handle transition away from B0 status */
if (!(old_termios->c_cflag & CBAUD) &&
tty->termios->c_cflag & CBAUD) {
info->serial_signals |= SerialSignal_DTR;
if (!(tty->termios->c_cflag & CRTSCTS) ||
if (!(tty->termios->c_cflag & CRTSCTS) ||
!test_bit(TTY_THROTTLED, &tty->flags)) {
info->serial_signals |= SerialSignal_RTS;
}
......@@ -2407,7 +2407,7 @@ static void mgslpc_set_termios(struct tty_struct *tty, struct ktermios *old_term
set_signals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
/* Handle turning off CRTSCTS */
if (old_termios->c_cflag & CRTSCTS &&
!(tty->termios->c_cflag & CRTSCTS)) {
......@@ -2422,17 +2422,17 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_close"))
return;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
__FILE__,__LINE__, info->device_name, info->count);
if (!info->count)
return;
if (tty_hung_up_p(filp))
goto cleanup;
if ((tty->count == 1) && (info->count != 1)) {
/*
* tty->count is 1 and the tty structure will be freed.
......@@ -2443,30 +2443,30 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
"info->count is %d\n", info->count);
info->count = 1;
}
info->count--;
/* if at least one open remaining, leave hardware active */
if (info->count)
goto cleanup;
info->flags |= ASYNC_CLOSING;
/* set tty->closing to notify line discipline to
/* set tty->closing to notify line discipline to
* only process XON/XOFF characters. Only the N_TTY
* discipline appears to use this (ppp does not).
*/
tty->closing = 1;
/* wait for transmit data to clear all layers */
if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) {
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_close(%s) calling tty_wait_until_sent\n",
__FILE__,__LINE__, info->device_name );
tty_wait_until_sent(tty, info->closing_wait);
}
if (info->flags & ASYNC_INITIALIZED)
mgslpc_wait_until_sent(tty, info->timeout);
......@@ -2474,24 +2474,24 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
tty->driver->flush_buffer(tty);
ldisc_flush_buffer(tty);
shutdown(info);
tty->closing = 0;
info->tty = NULL;
if (info->blocked_open) {
if (info->close_delay) {
msleep_interruptible(jiffies_to_msecs(info->close_delay));
}
wake_up_interruptible(&info->open_wait);
}
info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
wake_up_interruptible(&info->close_wait);
cleanup:
cleanup:
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__,__LINE__,
tty->driver->name, info->count);
......@@ -2510,31 +2510,31 @@ static void mgslpc_wait_until_sent(struct tty_struct *tty, int timeout)
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_wait_until_sent(%s) entry\n",
__FILE__,__LINE__, info->device_name );
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_wait_until_sent"))
return;
if (!(info->flags & ASYNC_INITIALIZED))
goto exit;
orig_jiffies = jiffies;
/* Set check interval to 1/5 of estimated time to
* send a character, and make it at least 1. The check
* interval should also be less than the timeout.
* Note: use tight timings here to satisfy the NIST-PCTS.
*/
*/
if ( info->params.data_rate ) {
char_time = info->timeout/(32 * 5);
if (!char_time)
char_time++;
} else
char_time = 1;
if (timeout)
char_time = min_t(unsigned long, char_time, timeout);
if (info->params.mode == MGSL_MODE_HDLC) {
while (info->tx_active) {
msleep_interruptible(jiffies_to_msecs(char_time));
......@@ -2553,7 +2553,7 @@ static void mgslpc_wait_until_sent(struct tty_struct *tty, int timeout)
break;
}
}
exit:
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_wait_until_sent(%s) exit\n",
......@@ -2566,18 +2566,18 @@ static void mgslpc_wait_until_sent(struct tty_struct *tty, int timeout)
static void mgslpc_hangup(struct tty_struct *tty)
{
MGSLPC_INFO * info = (MGSLPC_INFO *)tty->driver_data;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_hangup(%s)\n",
__FILE__,__LINE__, info->device_name );
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_hangup"))
return;
mgslpc_flush_buffer(tty);
shutdown(info);
info->count = 0;
info->count = 0;
info->flags &= ~ASYNC_NORMAL_ACTIVE;
info->tty = NULL;
......@@ -2594,7 +2594,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
int retval;
int do_clocal = 0, extra_count = 0;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):block_til_ready on %s\n",
__FILE__,__LINE__, tty->driver->name );
......@@ -2615,10 +2615,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
* mgslpc_close() knows when to free things. We restore it upon
* exit, either normal or abnormal.
*/
retval = 0;
add_wait_queue(&info->open_wait, &wait);
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):block_til_ready before block on %s count=%d\n",
__FILE__,__LINE__, tty->driver->name, info->count );
......@@ -2630,7 +2630,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
}
spin_unlock_irqrestore(&info->lock, flags);
info->blocked_open++;
while (1) {
if ((tty->termios->c_cflag & CBAUD)) {
spin_lock_irqsave(&info->lock,flags);
......@@ -2638,50 +2638,50 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
set_signals(info);
spin_unlock_irqrestore(&info->lock,flags);
}
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){
retval = (info->flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS;
break;
}
spin_lock_irqsave(&info->lock,flags);
get_signals(info);
spin_unlock_irqrestore(&info->lock,flags);
if (!(info->flags & ASYNC_CLOSING) &&
(do_clocal || (info->serial_signals & SerialSignal_DCD)) ) {
break;
}
if (signal_pending(current)) {
retval = -ERESTARTSYS;
break;
}
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):block_til_ready blocking on %s count=%d\n",
__FILE__,__LINE__, tty->driver->name, info->count );
schedule();
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&info->open_wait, &wait);
if (extra_count)
info->count++;
info->blocked_open--;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
__FILE__,__LINE__, tty->driver->name, info->count );
if (!retval)
info->flags |= ASYNC_NORMAL_ACTIVE;
return retval;
}
......@@ -2691,7 +2691,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
int retval, line;
unsigned long flags;
/* verify range of specified line number */
/* verify range of specified line number */
line = tty->index;
if ((line < 0) || (line >= mgslpc_device_count)) {
printk("%s(%d):mgslpc_open with invalid line #%d.\n",
......@@ -2705,10 +2705,10 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
info = info->next_device;
if (mgslpc_paranoia_check(info, tty->name, "mgslpc_open"))
return -ENODEV;
tty->driver_data = info;
info->tty = tty;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
__FILE__,__LINE__,tty->driver->name, info->count);
......@@ -2721,7 +2721,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
-EAGAIN : -ERESTARTSYS);
goto cleanup;
}
info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
spin_lock_irqsave(&info->netlock, flags);
......@@ -2752,15 +2752,15 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
printk("%s(%d):mgslpc_open(%s) success\n",
__FILE__,__LINE__, info->device_name);
retval = 0;
cleanup:
cleanup:
if (retval) {
if (tty->count == 1)
info->tty = NULL; /* tty layer will release tty struct */
if(info->count)
info->count--;
}
return retval;
}
......@@ -2781,7 +2781,7 @@ static inline int line_info(char *buf, MGSLPC_INFO *info)
spin_lock_irqsave(&info->lock,flags);
get_signals(info);
spin_unlock_irqrestore(&info->lock,flags);
stat_buf[0] = 0;
stat_buf[1] = 0;
if (info->serial_signals & SerialSignal_RTS)
......@@ -2805,7 +2805,7 @@ static inline int line_info(char *buf, MGSLPC_INFO *info)
if (info->icount.txabort)
ret += sprintf(buf+ret, " txabort:%d", info->icount.txabort);
if (info->icount.rxshort)
ret += sprintf(buf+ret, " rxshort:%d", info->icount.rxshort);
ret += sprintf(buf+ret, " rxshort:%d", info->icount.rxshort);
if (info->icount.rxlong)
ret += sprintf(buf+ret, " rxlong:%d", info->icount.rxlong);
if (info->icount.rxover)
......@@ -2820,18 +2820,18 @@ static inline int line_info(char *buf, MGSLPC_INFO *info)
if (info->icount.parity)
ret += sprintf(buf+ret, " pe:%d", info->icount.parity);
if (info->icount.brk)
ret += sprintf(buf+ret, " brk:%d", info->icount.brk);
ret += sprintf(buf+ret, " brk:%d", info->icount.brk);
if (info->icount.overrun)
ret += sprintf(buf+ret, " oe:%d", info->icount.overrun);
}
/* Append serial signal status to end */
ret += sprintf(buf+ret, " %s\n", stat_buf+1);
ret += sprintf(buf+ret, "txactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
info->tx_active,info->bh_requested,info->bh_running,
info->pending_bh);
return ret;
}
......@@ -2843,9 +2843,9 @@ static int mgslpc_read_proc(char *page, char **start, off_t off, int count,
int len = 0, l;
off_t begin = 0;
MGSLPC_INFO *info;
len += sprintf(page, "synclink driver:%s\n", driver_version);
info = mgslpc_device_list;
while( info ) {
l = line_info(page + len, info);
......@@ -2902,7 +2902,7 @@ static int claim_resources(MGSLPC_INFO *info)
printk( "Cant allocate rx buffer %s\n", info->device_name);
release_resources(info);
return -ENODEV;
}
}
return 0;
}
......@@ -2915,7 +2915,7 @@ static void release_resources(MGSLPC_INFO *info)
/* Add the specified device instance data structure to the
* global linked list of devices and increment the device count.
*
*
* Arguments: info pointer to device instance data
*/
static void mgslpc_add_device(MGSLPC_INFO *info)
......@@ -2923,7 +2923,7 @@ static void mgslpc_add_device(MGSLPC_INFO *info)
info->next_device = NULL;
info->line = mgslpc_device_count;
sprintf(info->device_name,"ttySLP%d",info->line);
if (info->line < MAX_DEVICE_COUNT) {
if (maxframe[info->line])
info->max_frame_size = maxframe[info->line];
......@@ -2931,21 +2931,21 @@ static void mgslpc_add_device(MGSLPC_INFO *info)
}
mgslpc_device_count++;
if (!mgslpc_device_list)
mgslpc_device_list = info;
else {
else {
MGSLPC_INFO *current_dev = mgslpc_device_list;
while( current_dev->next_device )
current_dev = current_dev->next_device;
current_dev->next_device = info;
}
if (info->max_frame_size < 4096)
info->max_frame_size = 4096;
else if (info->max_frame_size > 65535)
info->max_frame_size = 65535;
printk( "SyncLink PC Card %s:IO=%04X IRQ=%d\n",
info->device_name, info->io_base, info->irq_level);
......@@ -3060,7 +3060,7 @@ static int __init synclink_cs_init(void)
}
/* Initialize the tty_driver structure */
serial_driver->owner = THIS_MODULE;
serial_driver->driver_name = "synclink_cs";
serial_driver->name = "ttySLP";
......@@ -3081,11 +3081,11 @@ static int __init synclink_cs_init(void)
serial_driver = NULL;
goto error;
}
printk("%s %s, tty major#%d\n",
driver_name, driver_version,
serial_driver->major);
return 0;
error:
......@@ -3093,7 +3093,7 @@ static int __init synclink_cs_init(void)
return rc;
}
static void __exit synclink_cs_exit(void)
static void __exit synclink_cs_exit(void)
{
synclink_cs_cleanup();
}
......@@ -3106,8 +3106,8 @@ static void mgslpc_set_rate(MGSLPC_INFO *info, unsigned char channel, unsigned i
unsigned int M, N;
unsigned char val;
/* note:standard BRG mode is broken in V3.2 chip
* so enhanced mode is always used
/* note:standard BRG mode is broken in V3.2 chip
* so enhanced mode is always used
*/
if (rate) {
......@@ -3126,7 +3126,7 @@ static void mgslpc_set_rate(MGSLPC_INFO *info, unsigned char channel, unsigned i
* divisor = (N+1)*2^M
*
* Note: M *must* not be zero (causes asymetric duty cycle)
*/
*/
write_reg(info, (unsigned char) (channel + BGR),
(unsigned char) ((M << 6) + N));
val = read_reg(info, (unsigned char) (channel + CCR2)) & 0x3f;
......@@ -3140,7 +3140,7 @@ static void mgslpc_set_rate(MGSLPC_INFO *info, unsigned char channel, unsigned i
static void enable_auxclk(MGSLPC_INFO *info)
{
unsigned char val;
/* MODE
*
* 07..06 MDS[1..0] 10 = transparent HDLC mode
......@@ -3152,14 +3152,14 @@ static void enable_auxclk(MGSLPC_INFO *info)
* 00 TLP Test Loop, 0 = no loop
*
* 1000 0010
*/
*/
val = 0x82;
/* channel B RTS is used to enable AUXCLK driver on SP505 */
/* channel B RTS is used to enable AUXCLK driver on SP505 */
if (info->params.mode == MGSL_MODE_HDLC && info->params.clock_speed)
val |= BIT2;
write_reg(info, CHB + MODE, val);
/* CCR0
*
* 07 PU Power Up, 1=active, 0=power down
......@@ -3169,9 +3169,9 @@ static void enable_auxclk(MGSLPC_INFO *info)
* 01..00 SM[1..0] Serial Mode, 00=HDLC
*
* 11000000
*/
*/
write_reg(info, CHB + CCR0, 0xc0);
/* CCR1
*
* 07 SFLG Shared Flag, 0 = disable shared flags
......@@ -3182,9 +3182,9 @@ static void enable_auxclk(MGSLPC_INFO *info)
* 02..00 CM[2..0] Clock Mode
*
* 0001 0111
*/
*/
write_reg(info, CHB + CCR1, 0x17);
/* CCR2 (Channel B)
*
* 07..06 BGR[9..8] Baud rate bits 9..8
......@@ -3196,12 +3196,12 @@ static void enable_auxclk(MGSLPC_INFO *info)
* 00 DIV, data inversion 0=disabled, 1=enabled
*
* 0011 1000
*/
*/
if (info->params.mode == MGSL_MODE_HDLC && info->params.clock_speed)
write_reg(info, CHB + CCR2, 0x38);
else
write_reg(info, CHB + CCR2, 0x30);
/* CCR4
*
* 07 MCK4 Master Clock Divide by 4, 1=enabled
......@@ -3212,37 +3212,37 @@ static void enable_auxclk(MGSLPC_INFO *info)
* 01..00 RFT[1..0] RxFIFO Threshold 00=32 bytes
*
* 0101 0000
*/
*/
write_reg(info, CHB + CCR4, 0x50);
/* if auxclk not enabled, set internal BRG so
* CTS transitions can be detected (requires TxC)
*/
*/
if (info->params.mode == MGSL_MODE_HDLC && info->params.clock_speed)
mgslpc_set_rate(info, CHB, info->params.clock_speed);
else
mgslpc_set_rate(info, CHB, 921600);
}
static void loopback_enable(MGSLPC_INFO *info)
static void loopback_enable(MGSLPC_INFO *info)
{
unsigned char val;
/* CCR1:02..00 CM[2..0] Clock Mode = 111 (clock mode 7) */
/* CCR1:02..00 CM[2..0] Clock Mode = 111 (clock mode 7) */
val = read_reg(info, CHA + CCR1) | (BIT2 + BIT1 + BIT0);
write_reg(info, CHA + CCR1, val);
/* CCR2:04 SSEL Clock source select, 1=submode b */
/* CCR2:04 SSEL Clock source select, 1=submode b */
val = read_reg(info, CHA + CCR2) | (BIT4 + BIT5);
write_reg(info, CHA + CCR2, val);
/* set LinkSpeed if available, otherwise default to 2Mbps */
/* set LinkSpeed if available, otherwise default to 2Mbps */
if (info->params.clock_speed)
mgslpc_set_rate(info, CHA, info->params.clock_speed);
else
mgslpc_set_rate(info, CHA, 1843200);
/* MODE:00 TLP Test Loop, 1=loopback enabled */
/* MODE:00 TLP Test Loop, 1=loopback enabled */
val = read_reg(info, CHA + MODE) | BIT0;
write_reg(info, CHA + MODE, val);
}
......@@ -3252,36 +3252,36 @@ static void hdlc_mode(MGSLPC_INFO *info)
unsigned char val;
unsigned char clkmode, clksubmode;
/* disable all interrupts */
/* disable all interrupts */
irq_disable(info, CHA, 0xffff);
irq_disable(info, CHB, 0xffff);
port_irq_disable(info, 0xff);
/* assume clock mode 0a, rcv=RxC xmt=TxC */
/* assume clock mode 0a, rcv=RxC xmt=TxC */
clkmode = clksubmode = 0;
if (info->params.flags & HDLC_FLAG_RXC_DPLL
&& info->params.flags & HDLC_FLAG_TXC_DPLL) {
/* clock mode 7a, rcv = DPLL, xmt = DPLL */
/* clock mode 7a, rcv = DPLL, xmt = DPLL */
clkmode = 7;
} else if (info->params.flags & HDLC_FLAG_RXC_BRG
&& info->params.flags & HDLC_FLAG_TXC_BRG) {
/* clock mode 7b, rcv = BRG, xmt = BRG */
/* clock mode 7b, rcv = BRG, xmt = BRG */
clkmode = 7;
clksubmode = 1;
} else if (info->params.flags & HDLC_FLAG_RXC_DPLL) {
if (info->params.flags & HDLC_FLAG_TXC_BRG) {
/* clock mode 6b, rcv = DPLL, xmt = BRG/16 */
/* clock mode 6b, rcv = DPLL, xmt = BRG/16 */
clkmode = 6;
clksubmode = 1;
} else {
/* clock mode 6a, rcv = DPLL, xmt = TxC */
/* clock mode 6a, rcv = DPLL, xmt = TxC */
clkmode = 6;
}
} else if (info->params.flags & HDLC_FLAG_TXC_BRG) {
/* clock mode 0b, rcv = RxC, xmt = BRG */
/* clock mode 0b, rcv = RxC, xmt = BRG */
clksubmode = 1;
}
/* MODE
*
* 07..06 MDS[1..0] 10 = transparent HDLC mode
......@@ -3293,16 +3293,16 @@ static void hdlc_mode(MGSLPC_INFO *info)
* 00 TLP Test Loop, 0 = no loop
*
* 1000 0010
*/
*/
val = 0x82;
if (info->params.loopback)
val |= BIT0;
/* preserve RTS state */
/* preserve RTS state */
if (info->serial_signals & SerialSignal_RTS)
val |= BIT2;
write_reg(info, CHA + MODE, val);
/* CCR0
*
* 07 PU Power Up, 1=active, 0=power down
......@@ -3312,7 +3312,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
* 01..00 SM[1..0] Serial Mode, 00=HDLC
*
* 11000000
*/
*/
val = 0xc0;
switch (info->params.encoding)
{
......@@ -3330,7 +3330,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
break; // Manchester
}
write_reg(info, CHA + CCR0, val);
/* CCR1
*
* 07 SFLG Shared Flag, 0 = disable shared flags
......@@ -3341,10 +3341,10 @@ static void hdlc_mode(MGSLPC_INFO *info)
* 02..00 CM[2..0] Clock Mode
*
* 0001 0000
*/
*/
val = 0x10 + clkmode;
write_reg(info, CHA + CCR1, val);
/* CCR2
*
* 07..06 BGR[9..8] Baud rate bits 9..8
......@@ -3356,7 +3356,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
* 00 DIV, data inversion 0=disabled, 1=enabled
*
* 0000 0000
*/
*/
val = 0x00;
if (clkmode == 2 || clkmode == 3 || clkmode == 6
|| clkmode == 7 || (clkmode == 0 && clksubmode == 1))
......@@ -3368,7 +3368,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
if (info->params.encoding == HDLC_ENCODING_NRZB)
val |= BIT0;
write_reg(info, CHA + CCR2, val);
/* CCR3
*
* 07..06 PRE[1..0] Preamble count 00=1, 01=2, 10=4, 11=8
......@@ -3380,7 +3380,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
* 00 PSD DPLL Phase Shift Disable
*
* 0000 0000
*/
*/
val = 0x00;
if (info->params.crc_type == HDLC_CRC_NONE)
val |= BIT2 + BIT1;
......@@ -3399,8 +3399,8 @@ static void hdlc_mode(MGSLPC_INFO *info)
break;
}
write_reg(info, CHA + CCR3, val);
/* PRE - Preamble pattern */
/* PRE - Preamble pattern */
val = 0;
switch (info->params.preamble)
{
......@@ -3410,7 +3410,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
case HDLC_PREAMBLE_PATTERN_ONES: val = 0xff; break;
}
write_reg(info, CHA + PRE, val);
/* CCR4
*
* 07 MCK4 Master Clock Divide by 4, 1=enabled
......@@ -3421,21 +3421,21 @@ static void hdlc_mode(MGSLPC_INFO *info)
* 01..00 RFT[1..0] RxFIFO Threshold 00=32 bytes
*
* 0101 0000
*/
*/
val = 0x50;
write_reg(info, CHA + CCR4, val);
if (info->params.flags & HDLC_FLAG_RXC_DPLL)
mgslpc_set_rate(info, CHA, info->params.clock_speed * 16);
else
mgslpc_set_rate(info, CHA, info->params.clock_speed);
/* RLCR Receive length check register
*
* 7 1=enable receive length check
* 6..0 Max frame length = (RL + 1) * 32
*/
*/
write_reg(info, CHA + RLCR, 0);
/* XBCH Transmit Byte Count High
*
* 07 DMA mode, 0 = interrupt driven
......@@ -3445,7 +3445,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
* 03..00 XBC[10..8] Transmit byte count bits 10..8
*
* 0000 0000
*/
*/
val = 0x00;
if (info->params.flags & HDLC_FLAG_AUTO_DCD)
val |= BIT5;
......@@ -3456,7 +3456,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
if (info->params.flags & HDLC_FLAG_AUTO_CTS)
{
irq_enable(info, CHB, IRQ_CTS);
/* PVR[3] 1=AUTO CTS active */
/* PVR[3] 1=AUTO CTS active */
set_reg_bits(info, CHA + PVR, BIT3);
} else
clear_reg_bits(info, CHA + PVR, BIT3);
......@@ -3467,7 +3467,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
issue_command(info, CHA, CMD_TXRESET + CMD_RXRESET);
wait_command_complete(info, CHA);
read_reg16(info, CHA + ISR); /* clear pending IRQs */
/* Master clock mode enabled above to allow reset commands
* to complete even if no data clocks are present.
*
......@@ -3477,7 +3477,7 @@ static void hdlc_mode(MGSLPC_INFO *info)
*
* Leave master clock mode enabled for IRQ test because the
* timer IRQ used by the test can only happen in master clock mode.
*/
*/
if (!info->testing_irq)
clear_reg_bits(info, CHA + CCR0, BIT6);
......@@ -3492,8 +3492,8 @@ static void rx_stop(MGSLPC_INFO *info)
if (debug_level >= DEBUG_LEVEL_ISR)
printk("%s(%d):rx_stop(%s)\n",
__FILE__,__LINE__, info->device_name );
/* MODE:03 RAC Receiver Active, 0=inactive */
/* MODE:03 RAC Receiver Active, 0=inactive */
clear_reg_bits(info, CHA + MODE, BIT3);
info->rx_enabled = 0;
......@@ -3510,7 +3510,7 @@ static void rx_start(MGSLPC_INFO *info)
info->rx_enabled = 0;
info->rx_overflow = 0;
/* MODE:03 RAC Receiver Active, 1=active */
/* MODE:03 RAC Receiver Active, 1=active */
set_reg_bits(info, CHA + MODE, BIT3);
info->rx_enabled = 1;
......@@ -3521,7 +3521,7 @@ static void tx_start(MGSLPC_INFO *info)
if (debug_level >= DEBUG_LEVEL_ISR)
printk("%s(%d):tx_start(%s)\n",
__FILE__,__LINE__, info->device_name );
if (info->tx_count) {
/* If auto RTS enabled and RTS is inactive, then assert */
/* RTS and set a flag indicating that the driver should */
......@@ -3559,8 +3559,8 @@ static void tx_stop(MGSLPC_INFO *info)
if (debug_level >= DEBUG_LEVEL_ISR)
printk("%s(%d):tx_stop(%s)\n",
__FILE__,__LINE__, info->device_name );
del_timer(&info->tx_timer);
del_timer(&info->tx_timer);
info->tx_enabled = 0;
info->tx_active = 0;
......@@ -3570,17 +3570,17 @@ static void tx_stop(MGSLPC_INFO *info)
*/
static void reset_device(MGSLPC_INFO *info)
{
/* power up both channels (set BIT7) */
/* power up both channels (set BIT7) */
write_reg(info, CHA + CCR0, 0x80);
write_reg(info, CHB + CCR0, 0x80);
write_reg(info, CHA + MODE, 0);
write_reg(info, CHB + MODE, 0);
/* disable all interrupts */
/* disable all interrupts */
irq_disable(info, CHA, 0xffff);
irq_disable(info, CHB, 0xffff);
port_irq_disable(info, 0xff);
/* PCR Port Configuration Register
*
* 07..04 DEC[3..0] Serial I/F select outputs
......@@ -3590,9 +3590,9 @@ static void reset_device(MGSLPC_INFO *info)
* 00 DTR output 0=active
*
* 0000 0110
*/
*/
write_reg(info, PCR, 0x06);
/* PVR Port Value Register
*
* 07..04 DEC[3..0] Serial I/F select (0000=disabled)
......@@ -3604,7 +3604,7 @@ static void reset_device(MGSLPC_INFO *info)
* 0000 0001
*/
// write_reg(info, PVR, PVR_DTR);
/* IPC Interrupt Port Configuration
*
* 07 VIS 1=Masked interrupts visible
......@@ -3614,7 +3614,7 @@ static void reset_device(MGSLPC_INFO *info)
* 01..00 IC[1..0] Interrupt Config, 01=push-pull output, active low
*
* 0000 0101
*/
*/
write_reg(info, IPC, 0x05);
}
......@@ -3622,11 +3622,11 @@ static void async_mode(MGSLPC_INFO *info)
{
unsigned char val;
/* disable all interrupts */
/* disable all interrupts */
irq_disable(info, CHA, 0xffff);
irq_disable(info, CHB, 0xffff);
port_irq_disable(info, 0xff);
/* MODE
*
* 07 Reserved, 0
......@@ -3639,16 +3639,16 @@ static void async_mode(MGSLPC_INFO *info)
* 00 TLP Test Loop, 0 = no loop
*
* 0000 0110
*/
*/
val = 0x06;
if (info->params.loopback)
val |= BIT0;
/* preserve RTS state */
/* preserve RTS state */
if (!(info->serial_signals & SerialSignal_RTS))
val |= BIT6;
write_reg(info, CHA + MODE, val);
/* CCR0
*
* 07 PU Power Up, 1=active, 0=power down
......@@ -3658,9 +3658,9 @@ static void async_mode(MGSLPC_INFO *info)
* 01..00 SM[1..0] Serial Mode, 11=Async
*
* 1000 0011
*/
*/
write_reg(info, CHA + CCR0, 0x83);
/* CCR1
*
* 07..05 Reserved, 0
......@@ -3669,9 +3669,9 @@ static void async_mode(MGSLPC_INFO *info)
* 02..00 CM[2..0] Clock Mode, 111=BRG
*
* 0001 1111
*/
*/
write_reg(info, CHA + CCR1, 0x1f);
/* CCR2 (channel A)
*
* 07..06 BGR[9..8] Baud rate bits 9..8
......@@ -3683,18 +3683,18 @@ static void async_mode(MGSLPC_INFO *info)
* 00 DIV, data inversion 0=disabled, 1=enabled
*
* 0001 0000
*/
*/
write_reg(info, CHA + CCR2, 0x10);
/* CCR3
*
* 07..01 Reserved, 0
* 00 PSD DPLL Phase Shift Disable
*
* 0000 0000
*/
*/
write_reg(info, CHA + CCR3, 0);
/* CCR4
*
* 07 MCK4 Master Clock Divide by 4, 1=enabled
......@@ -3704,10 +3704,10 @@ static void async_mode(MGSLPC_INFO *info)
* 03..00 Reserved, must be 0
*
* 0101 0000
*/
*/
write_reg(info, CHA + CCR4, 0x50);
mgslpc_set_rate(info, CHA, info->params.data_rate * 16);
/* DAFO Data Format
*
* 07 Reserved, 0
......@@ -3717,7 +3717,7 @@ static void async_mode(MGSLPC_INFO *info)
* 02 PAREN Parity Enable
* 01..00 CHL[1..0] Character Length (00=8, 01=7)
*
*/
*/
val = 0x00;
if (info->params.data_bits != 8)
val |= BIT0; /* 7 bits */
......@@ -3732,7 +3732,7 @@ static void async_mode(MGSLPC_INFO *info)
val |= BIT4;
}
write_reg(info, CHA + DAFO, val);
/* RFC Rx FIFO Control
*
* 07 Reserved, 0
......@@ -3744,15 +3744,15 @@ static void async_mode(MGSLPC_INFO *info)
* 00 TCDE Terminate Char Detect Enable, 0=disabled
*
* 0101 1100
*/
*/
write_reg(info, CHA + RFC, 0x5c);
/* RLCR Receive length check register
*
* Max frame length = (RL + 1) * 32
*/
*/
write_reg(info, CHA + RLCR, 0);
/* XBCH Transmit Byte Count High
*
* 07 DMA mode, 0 = interrupt driven
......@@ -3762,20 +3762,20 @@ static void async_mode(MGSLPC_INFO *info)
* 03..00 XBC[10..8] Transmit byte count bits 10..8
*
* 0000 0000
*/
*/
val = 0x00;
if (info->params.flags & HDLC_FLAG_AUTO_DCD)
val |= BIT5;
write_reg(info, CHA + XBCH, val);
if (info->params.flags & HDLC_FLAG_AUTO_CTS)
irq_enable(info, CHA, IRQ_CTS);
/* MODE:03 RAC Receiver Active, 1=active */
/* MODE:03 RAC Receiver Active, 1=active */
set_reg_bits(info, CHA + MODE, BIT3);
enable_auxclk(info);
if (info->params.flags & HDLC_FLAG_AUTO_CTS) {
irq_enable(info, CHB, IRQ_CTS);
/* PVR[3] 1=AUTO CTS active */
/* PVR[3] 1=AUTO CTS active */
set_reg_bits(info, CHA + PVR, BIT3);
} else
clear_reg_bits(info, CHA + PVR, BIT3);
......@@ -3791,7 +3791,7 @@ static void async_mode(MGSLPC_INFO *info)
*/
static void tx_set_idle(MGSLPC_INFO *info)
{
/* Note: ESCC2 only supports flags and one idle modes */
/* Note: ESCC2 only supports flags and one idle modes */
if (info->idle_mode == HDLC_TXIDLE_FLAGS)
set_reg_bits(info, CHA + CCR1, BIT3);
else
......@@ -3803,8 +3803,8 @@ static void tx_set_idle(MGSLPC_INFO *info)
static void get_signals(MGSLPC_INFO *info)
{
unsigned char status = 0;
/* preserve DTR and RTS */
/* preserve DTR and RTS */
info->serial_signals &= SerialSignal_DTR + SerialSignal_RTS;
if (read_reg(info, CHB + VSTR) & BIT7)
......@@ -3873,7 +3873,7 @@ static int rx_get_frame(MGSLPC_INFO *info)
unsigned long flags;
struct tty_struct *tty = info->tty;
int return_frame = 0;
if (info->rx_frame_count == 0)
return 0;
......@@ -3913,10 +3913,10 @@ static int rx_get_frame(MGSLPC_INFO *info)
if (debug_level >= DEBUG_LEVEL_BH)
printk("%s(%d):rx_get_frame(%s) status=%04X size=%d\n",
__FILE__,__LINE__,info->device_name,status,framesize);
if (debug_level >= DEBUG_LEVEL_DATA)
trace_block(info, buf->data, framesize, 0);
trace_block(info, buf->data, framesize, 0);
if (framesize) {
if ((info->params.crc_type & HDLC_CRC_RETURN_EX &&
framesize+1 > info->max_frame_size) ||
......@@ -3953,7 +3953,7 @@ static int rx_get_frame(MGSLPC_INFO *info)
static BOOLEAN register_test(MGSLPC_INFO *info)
{
static unsigned char patterns[] =
static unsigned char patterns[] =
{ 0x00, 0xff, 0xaa, 0x55, 0x69, 0x96, 0x0f };
static unsigned int count = ARRAY_SIZE(patterns);
unsigned int i;
......@@ -4002,13 +4002,13 @@ static BOOLEAN irq_test(MGSLPC_INFO *info)
while(end_time-- && !info->irq_occurred) {
msleep_interruptible(10);
}
info->testing_irq = FALSE;
spin_lock_irqsave(&info->lock,flags);
reset_device(info);
spin_unlock_irqrestore(&info->lock,flags);
return info->irq_occurred ? TRUE : FALSE;
}
......@@ -4042,13 +4042,13 @@ static void trace_block(MGSLPC_INFO *info,const char* data, int count, int xmit)
printk("%s tx data:\n",info->device_name);
else
printk("%s rx data:\n",info->device_name);
while(count) {
if (count > 16)
linecount = 16;
else
linecount = count;
for(i=0;i<linecount;i++)
printk("%02X ",(unsigned char)data[i]);
for(;i<17;i++)
......@@ -4060,7 +4060,7 @@ static void trace_block(MGSLPC_INFO *info,const char* data, int count, int xmit)
printk(".");
}
printk("\n");
data += linecount;
count -= linecount;
}
......@@ -4073,7 +4073,7 @@ static void tx_timeout(unsigned long context)
{
MGSLPC_INFO *info = (MGSLPC_INFO*)context;
unsigned long flags;
if ( debug_level >= DEBUG_LEVEL_INFO )
printk( "%s(%d):tx_timeout(%s)\n",
__FILE__,__LINE__,info->device_name);
......@@ -4086,7 +4086,7 @@ static void tx_timeout(unsigned long context)
info->tx_count = info->tx_put = info->tx_get = 0;
spin_unlock_irqrestore(&info->lock,flags);
#if SYNCLINK_GENERIC_HDLC
if (info->netcount)
hdlcdev_tx_done(info);
......
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