#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/mm.h>
+#include <linux/seq_file.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/bitops.h>
*/
static void rs_stop(struct tty_struct *tty)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
unsigned long flags;
if (serial_paranoia_check(info, tty->name, "rs_stop"))
static void rs_start(struct tty_struct *tty)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
unsigned long flags;
if (serial_paranoia_check(info, tty->name, "rs_start"))
info->IER |= UART_IER_MSI;
}
/* TBD:
- * Does clearing IER_MSI imply that we should disbale the VBL interrupt ?
+ * Does clearing IER_MSI imply that we should disable the VBL interrupt ?
*/
/*
struct async_struct *info;
unsigned long flags;
- if (!tty)
- return 0;
-
info = tty->driver_data;
if (serial_paranoia_check(info, tty->name, "rs_put_char"))
static void rs_flush_chars(struct tty_struct *tty)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
unsigned long flags;
if (serial_paranoia_check(info, tty->name, "rs_flush_chars"))
struct async_struct *info;
unsigned long flags;
- if (!tty)
- return 0;
-
info = tty->driver_data;
if (serial_paranoia_check(info, tty->name, "rs_write"))
static int rs_write_room(struct tty_struct *tty)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
if (serial_paranoia_check(info, tty->name, "rs_write_room"))
return 0;
static int rs_chars_in_buffer(struct tty_struct *tty)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
if (serial_paranoia_check(info, tty->name, "rs_chars_in_buffer"))
return 0;
static void rs_flush_buffer(struct tty_struct *tty)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
unsigned long flags;
if (serial_paranoia_check(info, tty->name, "rs_flush_buffer"))
*/
static void rs_send_xchar(struct tty_struct *tty, char ch)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
unsigned long flags;
if (serial_paranoia_check(info, tty->name, "rs_send_char"))
*/
static void rs_throttle(struct tty_struct * tty)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
unsigned long flags;
#ifdef SERIAL_DEBUG_THROTTLE
char buf[64];
static void rs_unthrottle(struct tty_struct * tty)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
unsigned long flags;
#ifdef SERIAL_DEBUG_THROTTLE
char buf[64];
static int rs_tiocmget(struct tty_struct *tty, struct file *file)
{
- struct async_struct * info = (struct async_struct *)tty->driver_data;
+ struct async_struct * info = tty->driver_data;
unsigned char control, status;
unsigned long flags;
static int rs_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
- struct async_struct * info = (struct async_struct *)tty->driver_data;
+ struct async_struct * info = tty->driver_data;
unsigned long flags;
if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
*/
static int rs_break(struct tty_struct *tty, int break_state)
{
- struct async_struct * info = (struct async_struct *)tty->driver_data;
+ struct async_struct * info = tty->driver_data;
unsigned long flags;
if (serial_paranoia_check(info, tty->name, "rs_break"))
static int rs_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
- struct async_struct * info = (struct async_struct *)tty->driver_data;
+ struct async_struct * info = tty->driver_data;
struct async_icount cprev, cnow; /* kernel counter temps */
struct serial_icounter_struct icount;
void __user *argp = (void __user *)arg;
static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
{
- struct async_struct *info = (struct async_struct *)tty->driver_data;
+ struct async_struct *info = tty->driver_data;
unsigned long flags;
unsigned int cflag = tty->termios->c_cflag;
*/
static void rs_close(struct tty_struct *tty, struct file * filp)
{
- struct async_struct * info = (struct async_struct *)tty->driver_data;
+ struct async_struct * info = tty->driver_data;
struct serial_state *state;
unsigned long flags;
*/
static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
{
- struct async_struct * info = (struct async_struct *)tty->driver_data;
+ struct async_struct * info = tty->driver_data;
unsigned long orig_jiffies, char_time;
int lsr;
*/
static void rs_hangup(struct tty_struct *tty)
{
- struct async_struct * info = (struct async_struct *)tty->driver_data;
+ struct async_struct * info = tty->driver_data;
struct serial_state *state = info->state;
if (serial_paranoia_check(info, tty->name, "rs_hangup"))
* /proc fs routines....
*/
-static inline int line_info(char *buf, struct serial_state *state)
+static inline void line_info(struct seq_file *m, struct serial_state *state)
{
struct async_struct *info = state->info, scr_info;
char stat_buf[30], control, status;
- int ret;
unsigned long flags;
- ret = sprintf(buf, "%d: uart:amiga_builtin",state->line);
+ seq_printf(m, "%d: uart:amiga_builtin",state->line);
/*
* Figure out the current RS-232 lines
strcat(stat_buf, "|CD");
if (info->quot) {
- ret += sprintf(buf+ret, " baud:%d",
- state->baud_base / info->quot);
+ seq_printf(m, " baud:%d", state->baud_base / info->quot);
}
- ret += sprintf(buf+ret, " tx:%d rx:%d",
- state->icount.tx, state->icount.rx);
+ seq_printf(m, " tx:%d rx:%d", state->icount.tx, state->icount.rx);
if (state->icount.frame)
- ret += sprintf(buf+ret, " fe:%d", state->icount.frame);
+ seq_printf(m, " fe:%d", state->icount.frame);
if (state->icount.parity)
- ret += sprintf(buf+ret, " pe:%d", state->icount.parity);
+ seq_printf(m, " pe:%d", state->icount.parity);
if (state->icount.brk)
- ret += sprintf(buf+ret, " brk:%d", state->icount.brk);
+ seq_printf(m, " brk:%d", state->icount.brk);
if (state->icount.overrun)
- ret += sprintf(buf+ret, " oe:%d", state->icount.overrun);
+ seq_printf(m, " oe:%d", state->icount.overrun);
/*
* Last thing is the RS-232 status lines
*/
- ret += sprintf(buf+ret, " %s\n", stat_buf+1);
- return ret;
+ seq_printf(m, " %s\n", stat_buf+1);
}
-static int rs_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int rs_proc_show(struct seq_file *m, void *v)
{
- int len = 0, l;
- off_t begin = 0;
-
- len += sprintf(page, "serinfo:1.0 driver:%s\n", serial_version);
- l = line_info(page + len, &rs_table[0]);
- len += l;
- if (len+begin > off+count)
- goto done;
- if (len+begin < off) {
- begin += len;
- len = 0;
- }
- *eof = 1;
-done:
- if (off >= len+begin)
- return 0;
- *start = page + (off-begin);
- return ((count < begin+len-off) ? count : begin+len-off);
+ seq_printf(m, "serinfo:1.0 driver:%s\n", serial_version);
+ line_info(m, &rs_table[0]);
+ return 0;
+}
+
+static int rs_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, rs_proc_show, NULL);
}
+static const struct file_operations rs_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = rs_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
/*
* ---------------------------------------------------------------------
* rs_init() and friends
.break_ctl = rs_break,
.send_xchar = rs_send_xchar,
.wait_until_sent = rs_wait_until_sent,
- .read_proc = rs_read_proc,
.tiocmget = rs_tiocmget,
.tiocmset = rs_tiocmset,
+ .proc_fops = &rs_proc_fops,
};
/*
{
unsigned long flags;
struct serial_state * state;
+ int error;
if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_SERIAL))
return -ENODEV;
* We request SERDAT and SERPER only, because the serial registers are
* too spreaded over the custom register space
*/
- if (!request_mem_region(CUSTOM_PHYSADDR+0x30, 4, "amiserial [Paula]"))
- return -EBUSY;
+ if (!request_mem_region(CUSTOM_PHYSADDR+0x30, 4,
+ "amiserial [Paula]")) {
+ error = -EBUSY;
+ goto fail_put_tty_driver;
+ }
IRQ_ports = NULL;
serial_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(serial_driver, &serial_ops);
- if (tty_register_driver(serial_driver))
- panic("Couldn't register serial driver\n");
+ error = tty_register_driver(serial_driver);
+ if (error)
+ goto fail_release_mem_region;
state = rs_table;
state->magic = SSTATE_MAGIC;
local_irq_save(flags);
/* set ISRs, and then disable the rx interrupts */
- request_irq(IRQ_AMIGA_TBE, ser_tx_int, 0, "serial TX", state);
- request_irq(IRQ_AMIGA_RBF, ser_rx_int, IRQF_DISABLED, "serial RX", state);
+ error = request_irq(IRQ_AMIGA_TBE, ser_tx_int, 0, "serial TX", state);
+ if (error)
+ goto fail_unregister;
+
+ error = request_irq(IRQ_AMIGA_RBF, ser_rx_int, IRQF_DISABLED,
+ "serial RX", state);
+ if (error)
+ goto fail_free_irq;
/* turn off Rx and Tx interrupts */
custom.intena = IF_RBF | IF_TBE;
ciab.ddra &= ~(SER_DCD | SER_CTS | SER_DSR); /* inputs */
return 0;
+
+fail_free_irq:
+ free_irq(IRQ_AMIGA_TBE, state);
+fail_unregister:
+ tty_unregister_driver(serial_driver);
+fail_release_mem_region:
+ release_mem_region(CUSTOM_PHYSADDR+0x30, 4);
+fail_put_tty_driver:
+ put_tty_driver(serial_driver);
+ return error;
}
static __exit void rs_exit(void)
kfree(info);
}
+ free_irq(IRQ_AMIGA_TBE, rs_table);
+ free_irq(IRQ_AMIGA_RBF, rs_table);
+
release_mem_region(CUSTOM_PHYSADDR+0x30, 4);
}
module_exit(rs_exit)
+#if defined(CONFIG_SERIAL_CONSOLE) && !defined(MODULE)
+
/*
* ------------------------------------------------------------
* Serial console driver
* ------------------------------------------------------------
*/
-#ifdef CONFIG_SERIAL_CONSOLE
static void amiga_serial_putc(char c)
{
return 0;
}
console_initcall(amiserial_console_init);
-#endif
+
+#endif /* CONFIG_SERIAL_CONSOLE && !MODULE */
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff