#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/mm.h>
+#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
typedef struct _synclinkmp_info {
void *if_ptr; /* General purpose pointer (used by SPPP) */
int magic;
- int flags;
- int count; /* count of opens */
+ struct tty_port port;
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 */
u16 read_status_mask1; /* break detection (SR1 indications) */
u16 read_status_mask2; /* parity/framing/overun (SR2 indications) */
unsigned char ignore_status_mask1; /* break detection (SR1 indications) */
int tx_get;
int tx_count;
- 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 */
/* SPPP/Cisco HDLC device parts */
int netcount;
- int dosyncppp;
spinlock_t netlock;
#if SYNCLINK_GENERIC_HDLC
* .text section address and breakpoint on module load.
* This is useful for use with gdb and add-symbol-file command.
*/
-static int break_on_load=0;
+static int break_on_load = 0;
/*
* Driver major number, defaults to zero to get auto
* assigned major number. May be forced as module parameter.
*/
-static int ttymajor=0;
+static int ttymajor = 0;
/*
* Array of user specified options for ISA adapters.
*/
static int debug_level = 0;
static int maxframe[MAX_DEVICES] = {0,};
-static int dosyncppp[MAX_DEVICES] = {0,};
module_param(break_on_load, bool, 0);
module_param(ttymajor, int, 0);
module_param(debug_level, int, 0);
module_param_array(maxframe, int, NULL, 0);
-module_param_array(dosyncppp, int, NULL, 0);
static char *driver_name = "SyncLink MultiPort driver";
static char *driver_version = "$Revision: 4.38 $";
static void tx_release(struct tty_struct *tty);
static int ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
-static int read_proc(char *page, char **start, off_t off, int count,int *eof, void *data);
static int chars_in_buffer(struct tty_struct *tty);
static void throttle(struct tty_struct * tty);
static void unthrottle(struct tty_struct * tty);
-static void set_break(struct tty_struct *tty, int break_state);
+static int set_break(struct tty_struct *tty, int break_state);
#if SYNCLINK_GENERIC_HDLC
#define dev_to_port(D) (dev_to_hdlc(D)->priv)
static int tiocmget(struct tty_struct *tty, struct file *file);
static int tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
-static void set_break(struct tty_struct *tty, int break_state);
+static int set_break(struct tty_struct *tty, int break_state);
static void add_device(SLMP_INFO *info);
static void device_init(int adapter_num, struct pci_dev *pdev);
static int startup(SLMP_INFO *info);
static int block_til_ready(struct tty_struct *tty, struct file * filp,SLMP_INFO *info);
+static int carrier_raised(struct tty_port *port);
static void shutdown(SLMP_INFO *info);
static void program_hw(SLMP_INFO *info);
static void change_params(SLMP_INFO *info);
return;
ld = tty_ldisc_ref(tty);
if (ld) {
- if (ld->receive_buf)
- ld->receive_buf(tty, data, flags, count);
+ if (ld->ops->receive_buf)
+ ld->ops->receive_buf(tty, data, flags, count);
tty_ldisc_deref(ld);
}
}
}
tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s open(), old ref count = %d\n",
- __FILE__,__LINE__,tty->driver->name, info->count);
+ __FILE__,__LINE__,tty->driver->name, info->port.count);
/* If port is closing, signal caller to try again */
- if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){
- if (info->flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->close_wait);
- retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+ if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
+ if (info->port.flags & ASYNC_CLOSING)
+ interruptible_sleep_on(&info->port.close_wait);
+ retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
goto cleanup;
}
- info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+ info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
spin_lock_irqsave(&info->netlock, flags);
if (info->netcount) {
spin_unlock_irqrestore(&info->netlock, flags);
goto cleanup;
}
- info->count++;
+ info->port.count++;
spin_unlock_irqrestore(&info->netlock, flags);
- if (info->count == 1) {
+ if (info->port.count == 1) {
/* 1st open on this device, init hardware */
retval = startup(info);
if (retval < 0)
cleanup:
if (retval) {
if (tty->count == 1)
- info->tty = NULL; /* tty layer will release tty struct */
- if(info->count)
- info->count--;
+ info->port.tty = NULL; /* tty layer will release tty struct */
+ if(info->port.count)
+ info->port.count--;
}
return retval;
*/
static void close(struct tty_struct *tty, struct file *filp)
{
- SLMP_INFO * info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO * info = tty->driver_data;
if (sanity_check(info, tty->name, "close"))
return;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s close() entry, count=%d\n",
- __FILE__,__LINE__, info->device_name, info->count);
-
- if (!info->count)
- return;
+ __FILE__,__LINE__, info->device_name, info->port.count);
- if (tty_hung_up_p(filp))
+ if (tty_port_close_start(&info->port, tty, filp) == 0)
goto cleanup;
-
- if ((tty->count == 1) && (info->count != 1)) {
- /*
- * tty->count is 1 and the tty structure will be freed.
- * info->count should be one in this case.
- * if it's not, correct it so that the port is shutdown.
- */
- printk("%s(%d):%s close: bad refcount; tty->count is 1, "
- "info->count is %d\n",
- __FILE__,__LINE__, info->device_name, 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
- * 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):%s close() calling tty_wait_until_sent\n",
- __FILE__,__LINE__, info->device_name );
- tty_wait_until_sent(tty, info->closing_wait);
- }
-
- if (info->flags & ASYNC_INITIALIZED)
+
+ if (info->port.flags & ASYNC_INITIALIZED)
wait_until_sent(tty, info->timeout);
flush_buffer(tty);
-
tty_ldisc_flush(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);
-
+ tty_port_close_end(&info->port, tty);
+ info->port.tty = NULL;
cleanup:
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
- tty->driver->name, info->count);
+ tty->driver->name, info->port.count);
}
/* Called by tty_hangup() when a hangup is signaled.
*/
static void hangup(struct tty_struct *tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s hangup()\n",
flush_buffer(tty);
shutdown(info);
- info->count = 0;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- info->tty = NULL;
+ info->port.count = 0;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ info->port.tty = NULL;
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
}
/* Set new termios settings
*/
static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
const unsigned char *buf, int count)
{
int c, ret = 0;
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
*/
static int put_char(struct tty_struct *tty, unsigned char ch)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
int ret = 0;
*/
static void send_xchar(struct tty_struct *tty, char ch)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
*/
static void wait_until_sent(struct tty_struct *tty, int timeout)
{
- SLMP_INFO * info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO * info = tty->driver_data;
unsigned long orig_jiffies, char_time;
if (!info )
lock_kernel();
- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
goto exit;
orig_jiffies = jiffies;
*/
static int write_room(struct tty_struct *tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
int ret;
if (sanity_check(info, tty->name, "write_room"))
*/
static void flush_chars(struct tty_struct *tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if ( debug_level >= DEBUG_LEVEL_INFO )
*/
static void flush_buffer(struct tty_struct *tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
*/
static void tx_hold(struct tty_struct *tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (sanity_check(info, tty->name, "tx_hold"))
*/
static void tx_release(struct tty_struct *tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (sanity_check(info, tty->name, "tx_release"))
static int do_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
int error;
struct mgsl_icount cnow; /* kernel counter temps */
struct serial_icounter_struct __user *p_cuser; /* user space */
* /proc fs routines....
*/
-static inline int line_info(char *buf, SLMP_INFO *info)
+static inline void line_info(struct seq_file *m, SLMP_INFO *info)
{
char stat_buf[30];
- int ret;
unsigned long flags;
- ret = sprintf(buf, "%s: SCABase=%08x Mem=%08X StatusControl=%08x LCR=%08X\n"
+ seq_printf(m, "%s: SCABase=%08x Mem=%08X StatusControl=%08x LCR=%08X\n"
"\tIRQ=%d MaxFrameSize=%u\n",
info->device_name,
info->phys_sca_base,
strcat(stat_buf, "|RI");
if (info->params.mode == MGSL_MODE_HDLC) {
- ret += sprintf(buf+ret, "\tHDLC txok:%d rxok:%d",
+ seq_printf(m, "\tHDLC txok:%d rxok:%d",
info->icount.txok, info->icount.rxok);
if (info->icount.txunder)
- ret += sprintf(buf+ret, " txunder:%d", info->icount.txunder);
+ seq_printf(m, " txunder:%d", info->icount.txunder);
if (info->icount.txabort)
- ret += sprintf(buf+ret, " txabort:%d", info->icount.txabort);
+ seq_printf(m, " txabort:%d", info->icount.txabort);
if (info->icount.rxshort)
- ret += sprintf(buf+ret, " rxshort:%d", info->icount.rxshort);
+ seq_printf(m, " rxshort:%d", info->icount.rxshort);
if (info->icount.rxlong)
- ret += sprintf(buf+ret, " rxlong:%d", info->icount.rxlong);
+ seq_printf(m, " rxlong:%d", info->icount.rxlong);
if (info->icount.rxover)
- ret += sprintf(buf+ret, " rxover:%d", info->icount.rxover);
+ seq_printf(m, " rxover:%d", info->icount.rxover);
if (info->icount.rxcrc)
- ret += sprintf(buf+ret, " rxlong:%d", info->icount.rxcrc);
+ seq_printf(m, " rxlong:%d", info->icount.rxcrc);
} else {
- ret += sprintf(buf+ret, "\tASYNC tx:%d rx:%d",
+ seq_printf(m, "\tASYNC tx:%d rx:%d",
info->icount.tx, info->icount.rx);
if (info->icount.frame)
- ret += sprintf(buf+ret, " fe:%d", info->icount.frame);
+ seq_printf(m, " fe:%d", info->icount.frame);
if (info->icount.parity)
- ret += sprintf(buf+ret, " pe:%d", info->icount.parity);
+ seq_printf(m, " pe:%d", info->icount.parity);
if (info->icount.brk)
- ret += sprintf(buf+ret, " brk:%d", info->icount.brk);
+ seq_printf(m, " brk:%d", info->icount.brk);
if (info->icount.overrun)
- ret += sprintf(buf+ret, " oe:%d", info->icount.overrun);
+ seq_printf(m, " oe:%d", info->icount.overrun);
}
/* Append serial signal status to end */
- ret += sprintf(buf+ret, " %s\n", stat_buf+1);
+ seq_printf(m, " %s\n", stat_buf+1);
- ret += sprintf(buf+ret, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
+ seq_printf(m, "\ttxactive=%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;
}
/* Called to print information about devices
*/
-static int read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int synclinkmp_proc_show(struct seq_file *m, void *v)
{
- int len = 0, l;
- off_t begin = 0;
SLMP_INFO *info;
- len += sprintf(page, "synclinkmp driver:%s\n", driver_version);
+ seq_printf(m, "synclinkmp driver:%s\n", driver_version);
info = synclinkmp_device_list;
while( info ) {
- l = line_info(page + len, info);
- len += l;
- if (len+begin > off+count)
- goto done;
- if (len+begin < off) {
- begin += len;
- len = 0;
- }
+ line_info(m, info);
info = info->next_device;
}
+ return 0;
+}
- *eof = 1;
-done:
- if (off >= len+begin)
- return 0;
- *start = page + (off-begin);
- return ((count < begin+len-off) ? count : begin+len-off);
+static int synclinkmp_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, synclinkmp_proc_show, NULL);
}
+static const struct file_operations synclinkmp_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = synclinkmp_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
/* Return the count of bytes in transmit buffer
*/
static int chars_in_buffer(struct tty_struct *tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
if (sanity_check(info, tty->name, "chars_in_buffer"))
return 0;
*/
static void throttle(struct tty_struct * tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
*/
static void unthrottle(struct tty_struct * tty)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
/* set or clear transmit break condition
* break_state -1=set break condition, 0=clear
*/
-static void set_break(struct tty_struct *tty, int break_state)
+static int set_break(struct tty_struct *tty, int break_state)
{
unsigned char RegValue;
- SLMP_INFO * info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO * info = tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
__FILE__,__LINE__, info->device_name, break_state);
if (sanity_check(info, tty->name, "set_break"))
- return;
+ return -EINVAL;
spin_lock_irqsave(&info->lock,flags);
RegValue = read_reg(info, CTL);
RegValue &= ~BIT3;
write_reg(info, CTL, RegValue);
spin_unlock_irqrestore(&info->lock,flags);
+ return 0;
}
#if SYNCLINK_GENERIC_HDLC
unsigned short new_crctype;
/* return error if TTY interface open */
- if (info->count)
+ if (info->port.count)
return -EBUSY;
switch (encoding)
/* arbitrate between network and tty opens */
spin_lock_irqsave(&info->netlock, flags);
- if (info->count != 0 || info->netcount != 0) {
+ if (info->port.count != 0 || info->netcount != 0) {
printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
spin_unlock_irqrestore(&info->netlock, flags);
return -EBUSY;
printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
/* return error if TTY interface open */
- if (info->count)
+ if (info->port.count)
return -EBUSY;
if (cmd != SIOCWANDEV)
dev->stats.rx_bytes += size;
netif_rx(skb);
-
- dev->last_rx = jiffies;
}
+static const struct net_device_ops hdlcdev_ops = {
+ .ndo_open = hdlcdev_open,
+ .ndo_stop = hdlcdev_close,
+ .ndo_change_mtu = hdlc_change_mtu,
+ .ndo_start_xmit = hdlc_start_xmit,
+ .ndo_do_ioctl = hdlcdev_ioctl,
+ .ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
/**
* called by device driver when adding device instance
* do generic HDLC initialization
dev->irq = info->irq_level;
/* network layer callbacks and settings */
- dev->do_ioctl = hdlcdev_ioctl;
- dev->open = hdlcdev_open;
- dev->stop = hdlcdev_close;
- dev->tx_timeout = hdlcdev_tx_timeout;
- dev->watchdog_timeo = 10*HZ;
+ dev->netdev_ops = &hdlcdev_ops;
+ dev->watchdog_timeo = 10 * HZ;
dev->tx_queue_len = 50;
/* generic HDLC layer callbacks and settings */
static void bh_transmit(SLMP_INFO *info)
{
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
if ( debug_level >= DEBUG_LEVEL_BH )
printk( "%s(%d):%s bh_transmit() entry\n",
static void isr_rxint(SLMP_INFO * info)
{
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
struct mgsl_icount *icount = &info->icount;
unsigned char status = read_reg(info, SR1) & info->ie1_value & (FLGD + IDLD + CDCD + BRKD);
unsigned char status2 = read_reg(info, SR2) & info->ie2_value & OVRN;
if (!(status & info->ignore_status_mask1)) {
if (info->read_status_mask1 & BRKD) {
tty_insert_flip_char(tty, 0, TTY_BREAK);
- if (info->flags & ASYNC_SAK)
+ if (info->port.flags & ASYNC_SAK)
do_SAK(tty);
}
}
{
u16 status;
unsigned char DataByte;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
struct mgsl_icount *icount = &info->icount;
if ( debug_level >= DEBUG_LEVEL_ISR )
else
#endif
{
- if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) {
+ if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
tx_stop(info);
return;
}
return;
}
- if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) {
+ if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
tx_stop(info);
return;
}
wake_up_interruptible(&info->status_event_wait_q);
wake_up_interruptible(&info->event_wait_q);
- if ( (info->flags & ASYNC_CHECK_CD) &&
+ if ( (info->port.flags & ASYNC_CHECK_CD) &&
(status & MISCSTATUS_DCD_LATCHED) ) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("%s CD now %s...", info->device_name,
(status & SerialSignal_DCD) ? "on" : "off");
if (status & SerialSignal_DCD)
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
else {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("doing serial hangup...");
- if (info->tty)
- tty_hangup(info->tty);
+ if (info->port.tty)
+ tty_hangup(info->port.tty);
}
}
- if ( (info->flags & ASYNC_CTS_FLOW) &&
+ if ( (info->port.flags & ASYNC_CTS_FLOW) &&
(status & MISCSTATUS_CTS_LATCHED) ) {
- if ( info->tty ) {
- if (info->tty->hw_stopped) {
+ if ( info->port.tty ) {
+ if (info->port.tty->hw_stopped) {
if (status & SerialSignal_CTS) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("CTS tx start...");
- info->tty->hw_stopped = 0;
+ info->port.tty->hw_stopped = 0;
tx_start(info);
info->pending_bh |= BH_TRANSMIT;
return;
if (!(status & SerialSignal_CTS)) {
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("CTS tx stop...");
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
tx_stop(info);
}
}
* do not request bottom half processing if the
* device is not open in a normal mode.
*/
- if ( port && (port->count || port->netcount) &&
+ if ( port && (port->port.count || port->netcount) &&
port->pending_bh && !port->bh_running &&
!port->bh_requested ) {
if ( debug_level >= DEBUG_LEVEL_ISR )
if ( debug_level >= DEBUG_LEVEL_INFO )
printk("%s(%d):%s tx_releaseup()\n",__FILE__,__LINE__,info->device_name);
- if (info->flags & ASYNC_INITIALIZED)
+ if (info->port.flags & ASYNC_INITIALIZED)
return 0;
if (!info->tx_buf) {
mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;
return 0;
}
{
unsigned long flags;
- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;
if (debug_level >= DEBUG_LEVEL_INFO)
reset_port(info);
- if (!info->tty || info->tty->termios->c_cflag & HUPCL) {
+ if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
set_signals(info);
}
spin_unlock_irqrestore(&info->lock,flags);
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
- info->flags &= ~ASYNC_INITIALIZED;
+ info->port.flags &= ~ASYNC_INITIALIZED;
}
static void program_hw(SLMP_INFO *info)
get_signals(info);
- if (info->netcount || (info->tty && info->tty->termios->c_cflag & CREAD) )
+ if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) )
rx_start(info);
spin_unlock_irqrestore(&info->lock,flags);
unsigned cflag;
int bits_per_char;
- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s change_params()\n",
__FILE__,__LINE__, info->device_name );
- cflag = info->tty->termios->c_cflag;
+ cflag = info->port.tty->termios->c_cflag;
/* if B0 rate (hangup) specified then negate DTR and RTS */
/* otherwise assert DTR and RTS */
* current data rate.
*/
if (info->params.data_rate <= 460800) {
- info->params.data_rate = tty_get_baud_rate(info->tty);
+ info->params.data_rate = tty_get_baud_rate(info->port.tty);
}
if ( info->params.data_rate ) {
info->timeout += HZ/50; /* Add .02 seconds of slop */
if (cflag & CRTSCTS)
- info->flags |= ASYNC_CTS_FLOW;
+ info->port.flags |= ASYNC_CTS_FLOW;
else
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
if (cflag & CLOCAL)
- info->flags &= ~ASYNC_CHECK_CD;
+ info->port.flags &= ~ASYNC_CHECK_CD;
else
- info->flags |= ASYNC_CHECK_CD;
+ info->port.flags |= ASYNC_CHECK_CD;
/* process tty input control flags */
info->read_status_mask2 = OVRN;
- if (I_INPCK(info->tty))
+ if (I_INPCK(info->port.tty))
info->read_status_mask2 |= PE | FRME;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
info->read_status_mask1 |= BRKD;
- if (I_IGNPAR(info->tty))
+ if (I_IGNPAR(info->port.tty))
info->ignore_status_mask2 |= PE | FRME;
- if (I_IGNBRK(info->tty)) {
+ if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask1 |= BRKD;
/* If ignoring parity and break indicators, ignore
* overruns too. (For real raw support).
*/
- if (I_IGNPAR(info->tty))
+ if (I_IGNPAR(info->port.tty))
info->ignore_status_mask2 |= OVRN;
}
*/
static int tiocmget(struct tty_struct *tty, struct file *file)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned int result;
unsigned long flags;
static int tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
- SLMP_INFO *info = (SLMP_INFO *)tty->driver_data;
+ SLMP_INFO *info = tty->driver_data;
unsigned long flags;
if (debug_level >= DEBUG_LEVEL_INFO)
return 0;
}
+static int carrier_raised(struct tty_port *port)
+{
+ SLMP_INFO *info = container_of(port, SLMP_INFO, port);
+ unsigned long flags;
+
+ spin_lock_irqsave(&info->lock,flags);
+ get_signals(info);
+ spin_unlock_irqrestore(&info->lock,flags);
+
+ return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
+}
+
+static void dtr_rts(struct tty_port *port, int on)
+{
+ SLMP_INFO *info = container_of(port, SLMP_INFO, port);
+ unsigned long flags;
+ spin_lock_irqsave(&info->lock,flags);
+ if (on)
+ info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
+ else
+ info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
+ set_signals(info);
+ spin_unlock_irqrestore(&info->lock,flags);
+}
/* Block the current process until the specified port is ready to open.
*/
bool do_clocal = false;
bool extra_count = false;
unsigned long flags;
+ int cd;
+ struct tty_port *port = &info->port;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s block_til_ready()\n",
if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
/* nonblock mode is set or port is not enabled */
/* just verify that callout device is not active */
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ port->flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
/* Wait for carrier detect and the line to become
* free (i.e., not in use by the callout). While we are in
- * this loop, info->count is dropped by one, so that
+ * this loop, port->count is dropped by one, so that
* close() knows when to free things. We restore it upon
* exit, either normal or abnormal.
*/
retval = 0;
- add_wait_queue(&info->open_wait, &wait);
+ add_wait_queue(&port->open_wait, &wait);
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s block_til_ready() before block, count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, port->count );
spin_lock_irqsave(&info->lock, flags);
if (!tty_hung_up_p(filp)) {
extra_count = true;
- info->count--;
+ port->count--;
}
spin_unlock_irqrestore(&info->lock, flags);
- info->blocked_open++;
+ port->blocked_open++;
while (1) {
- if ((tty->termios->c_cflag & CBAUD)) {
- spin_lock_irqsave(&info->lock,flags);
- info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
+ if (tty->termios->c_cflag & CBAUD)
+ tty_port_raise_dtr_rts(port);
set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){
- retval = (info->flags & ASYNC_HUP_NOTIFY) ?
+ if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)){
+ retval = (port->flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS;
break;
}
- spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
+ cd = tty_port_carrier_raised(port);
- if (!(info->flags & ASYNC_CLOSING) &&
- (do_clocal || (info->serial_signals & SerialSignal_DCD)) ) {
+ if (!(port->flags & ASYNC_CLOSING) && (do_clocal || cd))
break;
- }
if (signal_pending(current)) {
retval = -ERESTARTSYS;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s block_til_ready() count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, port->count );
schedule();
}
set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&port->open_wait, &wait);
if (extra_count)
- info->count++;
- info->blocked_open--;
+ port->count++;
+ port->blocked_open--;
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s block_til_ready() after, count=%d\n",
- __FILE__,__LINE__, tty->driver->name, info->count );
+ __FILE__,__LINE__, tty->driver->name, port->count );
if (!retval)
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ port->flags |= ASYNC_NORMAL_ACTIVE;
return retval;
}
if (info->line < MAX_DEVICES) {
if (maxframe[info->line])
info->max_frame_size = maxframe[info->line];
- info->dosyncppp = dosyncppp[info->line];
}
synclinkmp_device_count++;
#endif
}
+static const struct tty_port_operations port_ops = {
+ .carrier_raised = carrier_raised,
+ .dtr_rts = dtr_rts,
+};
+
/* Allocate and initialize a device instance structure
*
* Return Value: pointer to SLMP_INFO if success, otherwise NULL
printk("%s(%d) Error can't allocate device instance data for adapter %d, port %d\n",
__FILE__,__LINE__, adapter_num, port_num);
} else {
+ tty_port_init(&info->port);
+ info->port.ops = &port_ops;
info->magic = MGSL_MAGIC;
INIT_WORK(&info->task, bh_handler);
info->max_frame_size = 4096;
- info->close_delay = 5*HZ/10;
- info->closing_wait = 30*HZ;
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
+ info->port.close_delay = 5*HZ/10;
+ info->port.closing_wait = 30*HZ;
init_waitqueue_head(&info->status_event_wait_q);
init_waitqueue_head(&info->event_wait_q);
spin_lock_init(&info->netlock);
.send_xchar = send_xchar,
.break_ctl = set_break,
.wait_until_sent = wait_until_sent,
- .read_proc = read_proc,
.set_termios = set_termios,
.stop = tx_hold,
.start = tx_release,
.hangup = hangup,
.tiocmget = tiocmget,
.tiocmset = tiocmset,
+ .proc_fops = &synclinkmp_proc_fops,
};
+
static void synclinkmp_cleanup(void)
{
int rc;
unsigned int framesize = 0;
bool ReturnCode = false;
unsigned long flags;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
unsigned char addr_field = 0xff;
SCADESC *desc;
SCADESC_EX *desc_ex;
bool rc = false;
unsigned long flags;
- struct tty_struct *oldtty = info->tty;
+ struct tty_struct *oldtty = info->port.tty;
u32 speed = info->params.clock_speed;
info->params.clock_speed = 3686400;
- info->tty = NULL;
+ info->port.tty = NULL;
/* assume failure */
info->init_error = DiagStatus_DmaFailure;
spin_unlock_irqrestore(&info->lock,flags);
info->params.clock_speed = speed;
- info->tty = oldtty;
+ info->port.tty = oldtty;
return rc;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff