Commit d4b965ce authored by Alexander Viro's avatar Alexander Viro Committed by Linus Torvalds

[PATCH] tty_driver refcounting

drivers/serial/68360serial.c converted to dynamic allocation
parent b841dfad
......@@ -73,7 +73,7 @@ extern int kgdb_output_string (const char* s, unsigned int count);
static char *serial_name = "CPM UART driver";
static char *serial_version = "0.03";
static struct tty_driver serial_driver;
static struct tty_driver *serial_driver;
int serial_console_setup(struct console *co, char *options);
/*
......@@ -2462,7 +2462,7 @@ void kgdb_map_scc(void)
static struct tty_struct *serial_console_device(struct console *c, int *index)
{
*index = c->index;
return &serial_driver;
return serial_driver;
}
......@@ -2495,6 +2495,25 @@ long console_360_init(long kmem_start, long kmem_end)
*/
static int baud_idx;
static struct tty_operations rs_360_ops = {
.open = rs_360_open,
.close = rs_360_close,
.write = rs_360_write,
.put_char = rs_360_put_char,
.write_room = rs_360_write_room,
.chars_in_buffer = rs_360_chars_in_buffer,
.flush_buffer = rs_360_flush_buffer,
.ioctl = rs_360_ioctl,
.throttle = rs_360_throttle,
.unthrottle = rs_360_unthrottle,
/* .send_xchar = rs_360_send_xchar, */
.set_termios = rs_360_set_termios,
.stop = rs_360_stop,
.start = rs_360_start,
.hangup = rs_360_hangup,
/* .wait_until_sent = rs_360_wait_until_sent, */
/* .read_proc = rs_360_read_proc, */
};
/* int __init rs_360_init(void) */
int rs_360_init(void)
......@@ -2513,45 +2532,24 @@ int rs_360_init(void)
volatile struct uart_pram *sup;
/* volatile immap_t *immap; */
serial_driver = alloc_tty_driver(NR_PORTS);
if (!serial_driver)
return -1;
show_serial_version();
/* Initialize the tty_driver structure */
/* __clear_user(&serial_driver,sizeof(struct tty_driver)); */
memset(&serial_driver, 0, sizeof(struct tty_driver));
serial_driver.magic = TTY_DRIVER_MAGIC;
/* serial_driver.driver_name = "serial"; */
serial_driver.name = "ttyS";
serial_driver.major = TTY_MAJOR;
serial_driver.minor_start = 64;
serial_driver.num = NR_PORTS;
serial_driver.type = TTY_DRIVER_TYPE_SERIAL;
serial_driver.subtype = SERIAL_TYPE_NORMAL;
serial_driver.init_termios = tty_std_termios;
serial_driver.init_termios.c_cflag =
serial_driver->name = "ttyS";
serial_driver->major = TTY_MAJOR;
serial_driver->minor_start = 64;
serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
serial_driver->subtype = SERIAL_TYPE_NORMAL;
serial_driver->init_termios = tty_std_termios;
serial_driver->init_termios.c_cflag =
baud_idx | CS8 | CREAD | HUPCL | CLOCAL;
serial_driver.flags = TTY_DRIVER_REAL_RAW;
serial_driver.open = rs_360_open;
serial_driver.close = rs_360_close;
serial_driver.write = rs_360_write;
serial_driver.put_char = rs_360_put_char;
serial_driver.write_room = rs_360_write_room;
serial_driver.chars_in_buffer = rs_360_chars_in_buffer;
serial_driver.flush_buffer = rs_360_flush_buffer;
serial_driver.ioctl = rs_360_ioctl;
serial_driver.throttle = rs_360_throttle;
serial_driver.unthrottle = rs_360_unthrottle;
/* serial_driver.send_xchar = rs_360_send_xchar; */
serial_driver.set_termios = rs_360_set_termios;
serial_driver.stop = rs_360_stop;
serial_driver.start = rs_360_start;
serial_driver.hangup = rs_360_hangup;
/* serial_driver.wait_until_sent = rs_360_wait_until_sent; */
/* serial_driver.read_proc = rs_360_read_proc; */
if (tty_register_driver(&serial_driver))
serial_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(serial_driver, &rs_360_ops);
if (tty_register_driver(serial_driver))
panic("Couldn't register serial driver\n");
cp = pquicc; /* Get pointer to Communication Processor */
......@@ -2859,7 +2857,7 @@ int rs_360_init(void)
/* cpm_install_handler(IRQ_MACHSPEC | state->irq, rs_360_interrupt, info); */
/*request_irq(IRQ_MACHSPEC | state->irq, rs_360_interrupt, */
request_irq(state->irq, rs_360_interrupt,
IRQ_FLG_LOCK, serial_driver.name, (void *)info);
IRQ_FLG_LOCK, "ttyS", (void *)info);
/* Set up the baud rate generator.
*/
......
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