#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>
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 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;
printk("%s(%d):%s close() entry, count=%d\n",
__FILE__,__LINE__, info->device_name, info->port.count);
- if (!info->port.count)
- return;
-
- if (tty_hung_up_p(filp))
- goto cleanup;
-
- if ((tty->count == 1) && (info->port.count != 1)) {
- /*
- * tty->count is 1 and the tty structure will be freed.
- * info->port.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->port.count is %d\n",
- __FILE__,__LINE__, info->device_name, info->port.count);
- info->port.count = 1;
- }
-
- info->port.count--;
-
- /* if at least one open remaining, leave hardware active */
- if (info->port.count)
+ if (tty_port_close_start(&info->port, tty, filp) == 0)
goto cleanup;
-
- info->port.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->port.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->port.closing_wait);
- }
-
+
if (info->port.flags & ASYNC_INITIALIZED)
wait_until_sent(tty, info->timeout);
flush_buffer(tty);
-
tty_ldisc_flush(tty);
-
shutdown(info);
- tty->closing = 0;
+ tty_port_close_end(&info->port, tty);
info->port.tty = NULL;
-
- if (info->port.blocked_open) {
- if (info->port.close_delay) {
- msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
- }
- wake_up_interruptible(&info->port.open_wait);
- }
-
- info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-
- wake_up_interruptible(&info->port.close_wait);
-
cleanup:
if (debug_level >= DEBUG_LEVEL_INFO)
printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
*/
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",
*/
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 )
*/
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)
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)
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 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 (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.
*/
static int block_til_ready(struct tty_struct *tty, struct file *filp,
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);
static const struct tty_port_operations port_ops = {
.carrier_raised = carrier_raised,
+ .dtr_rts = dtr_rts,
};
/* Allocate and initialize a device instance structure
.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,
};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff