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Diffstat (limited to 'arch/ia64/hp/sim/simserial.c')
-rw-r--r--arch/ia64/hp/sim/simserial.c94
1 files changed, 27 insertions, 67 deletions
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index c65c49d31e7f..64ab004b4763 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -49,44 +49,7 @@
static char *serial_name = "SimSerial driver";
static char *serial_version = "0.6";
-/*
- * This has been extracted from asm/serial.h. We need one eventually but
- * I don't know exactly what we're going to put in it so just fake one
- * for now.
- */
-#define BASE_BAUD ( 1843200 / 16 )
-
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
-
-/*
- * Most of the values here are meaningless to this particular driver.
- * However some values must be preserved for the code (leveraged from serial.c
- * to work correctly).
- * port must not be 0
- * type must not be UNKNOWN
- * So I picked arbitrary (guess from where?) values instead
- */
-static struct serial_state rs_table[NR_PORTS]={
- /* UART CLK PORT IRQ FLAGS */
- { BASE_BAUD, 0x3F8, 0, STD_COM_FLAGS, PORT_16550 } /* ttyS0 */
-};
-
-/*
- * Just for the fun of it !
- */
-static struct serial_uart_config uart_config[] = {
- { "unknown", 1, 0 },
- { "8250", 1, 0 },
- { "16450", 1, 0 },
- { "16550", 1, 0 },
- { "16550A", 16, UART_CLEAR_FIFO | UART_USE_FIFO },
- { "cirrus", 1, 0 },
- { "ST16650", 1, UART_CLEAR_FIFO | UART_STARTECH },
- { "ST16650V2", 32, UART_CLEAR_FIFO | UART_USE_FIFO |
- UART_STARTECH },
- { "TI16750", 64, UART_CLEAR_FIFO | UART_USE_FIFO},
- { NULL, 0}
-};
+static struct serial_state rs_table[NR_PORTS];
struct tty_driver *hp_simserial_driver;
@@ -592,11 +555,6 @@ static int startup(struct tty_struct *tty, struct serial_state *state)
goto errout;
}
- if (!state->port || !state->type) {
- set_bit(TTY_IO_ERROR, &tty->flags);
- free_page(page);
- goto errout;
- }
if (state->xmit.buf)
free_page(page);
else
@@ -725,9 +683,8 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
static inline void line_info(struct seq_file *m, struct serial_state *state)
{
- seq_printf(m, "%d: uart:%s port:%lX irq:%d\n",
- state->line, uart_config[state->type].name,
- state->port, state->irq);
+ seq_printf(m, "%d: uart:16550 port:3F8 irq:%d\n",
+ state->line, state->irq);
}
static int rs_proc_show(struct seq_file *m, void *v)
@@ -796,11 +753,10 @@ static const struct tty_operations hp_ops = {
/*
* The serial driver boot-time initialization code!
*/
-static int __init
-simrs_init (void)
+static int __init simrs_init(void)
{
- int i, rc;
- struct serial_state *state;
+ struct serial_state *state;
+ int retval;
if (!ia64_platform_is("hpsim"))
return -ENODEV;
@@ -828,29 +784,33 @@ simrs_init (void)
/*
* Let's have a little bit of fun !
*/
- for (i = 0, state = rs_table; i < NR_PORTS; i++,state++) {
- tty_port_init(&state->tport);
- state->tport.close_delay = 0; /* XXX really 0? */
+ state = rs_table;
+ tty_port_init(&state->tport);
+ state->tport.close_delay = 0; /* XXX really 0? */
+
+ retval = hpsim_get_irq(KEYBOARD_INTR);
+ if (retval < 0) {
+ printk(KERN_ERR "%s: out of interrupt vectors!\n",
+ __func__);
+ goto err_free_tty;
+ }
- if (state->type == PORT_UNKNOWN) continue;
+ state->irq = retval;
- if (!state->irq) {
- if ((rc = hpsim_get_irq(KEYBOARD_INTR)) < 0)
- panic("%s: out of interrupt vectors!\n",
- __func__);
- state->irq = rc;
- }
+ /* the port is imaginary */
+ printk(KERN_INFO "ttyS%d at 0x03f8 (irq = %d) is a 16550\n",
+ state->line, state->irq);
- printk(KERN_INFO "ttyS%d at 0x%04lx (irq = %d) is a %s\n",
- state->line,
- state->port, state->irq,
- uart_config[state->type].name);
+ retval = tty_register_driver(hp_simserial_driver);
+ if (retval) {
+ printk(KERN_ERR "Couldn't register simserial driver\n");
+ goto err_free_tty;
}
- if (tty_register_driver(hp_simserial_driver))
- panic("Couldn't register simserial driver\n");
-
return 0;
+err_free_tty:
+ put_tty_driver(hp_simserial_driver);
+ return retval;
}
#ifndef MODULE