*/
#include <linux/kernel.h>
-#include <linux/version.h>
#include <linux/sched.h> /* For jiffies, task states */
#include <linux/interrupt.h> /* For tasklet and interrupt structs/defines */
#include <linux/module.h>
#include "dpacompat.h"
#include "dgnc_sysfs.h"
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)
#define init_MUTEX(sem) sema_init(sem, 1)
#define DECLARE_MUTEX(name) \
struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
-#endif
/*
* internal variables
static void dgnc_tty_hangup(struct tty_struct *tty);
static int dgnc_set_modem_info(struct tty_struct *tty, unsigned int command, unsigned int __user *value);
static int dgnc_get_modem_info(struct channel_t *ch, unsigned int __user *value);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
static int dgnc_tty_tiocmget(struct tty_struct *tty);
static int dgnc_tty_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear);
-#else
-static int dgnc_tty_tiocmget(struct tty_struct *tty, struct file *file);
-static int dgnc_tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear);
-#endif
static int dgnc_tty_send_break(struct tty_struct *tty, int msec);
static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout);
static int dgnc_tty_write(struct tty_struct *tty, const unsigned char *buf, int count);
if (!brd->SerialDriver.ttys)
return -ENOMEM;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
- brd->SerialDriver.refcount = brd->TtyRefCnt;
-#else
kref_init(&brd->SerialDriver.kref);
-#endif
-
brd->SerialDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
if (!brd->SerialDriver.termios)
return -ENOMEM;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
- brd->SerialDriver.termios_locked = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
- if (!brd->SerialDriver.termios_locked)
- return -ENOMEM;
-#endif
/*
* Entry points for driver. Called by the kernel from
* tty_io.c and n_tty.c.
brd->PrintDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
if (!brd->PrintDriver.ttys)
return -ENOMEM;
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
- brd->PrintDriver.refcount = brd->TtyRefCnt;
-#else
kref_init(&brd->PrintDriver.kref);
-#endif
-
brd->PrintDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
if (!brd->PrintDriver.termios)
return -ENOMEM;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
- brd->PrintDriver.termios_locked = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
- if (!brd->PrintDriver.termios_locked)
- return -ENOMEM;
-#endif
-
/*
* Entry points for driver. Called by the kernel from
* tty_io.c and n_tty.c.
}
if (ch->ch_tun.un_flags & UN_ISOPEN) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
if ((ch->ch_tun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
ch->ch_tun.un_tty->ldisc->ops->write_wakeup)
{
(ch->ch_tun.un_tty->ldisc->ops->write_wakeup)(ch->ch_tun.un_tty);
DGNC_LOCK(ch->ch_lock, lock_flags);
}
-#else
- if ((ch->ch_tun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- ch->ch_tun.un_tty->ldisc.ops->write_wakeup)
- {
- DGNC_UNLOCK(ch->ch_lock, lock_flags);
- (ch->ch_tun.un_tty->ldisc.ops->write_wakeup)(ch->ch_tun.un_tty);
- DGNC_LOCK(ch->ch_lock, lock_flags);
- }
-#endif
wake_up_interruptible(&ch->ch_tun.un_tty->write_wait);
}
if (ch->ch_pun.un_flags & UN_ISOPEN) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
if ((ch->ch_pun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
ch->ch_pun.un_tty->ldisc->ops->write_wakeup)
{
(ch->ch_pun.un_tty->ldisc->ops->write_wakeup)(ch->ch_pun.un_tty);
DGNC_LOCK(ch->ch_lock, lock_flags);
}
-#else
- if ((ch->ch_pun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- ch->ch_pun.un_tty->ldisc.ops->write_wakeup)
- {
- DGNC_UNLOCK(ch->ch_lock, lock_flags);
- (ch->ch_pun.un_tty->ldisc.ops->write_wakeup)(ch->ch_pun.un_tty);
- DGNC_LOCK(ch->ch_lock, lock_flags);
- }
-#endif
wake_up_interruptible(&ch->ch_pun.un_tty->write_wait);
/*
* Return modem signals to ld.
*/
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
+
static int dgnc_tty_tiocmget(struct tty_struct *tty)
-#else
-static int dgnc_tty_tiocmget(struct tty_struct *tty, struct file *file)
-#endif
{
struct channel_t *ch;
struct un_t *un;
*
* Set modem signals, called by ld.
*/
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
+
static int dgnc_tty_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
-#else
-static int dgnc_tty_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-#endif
{
struct dgnc_board *bd;
struct channel_t *ch;