diff options
| -rw-r--r-- | arch/ia64/hp/sim/simserial.c | 94 |
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 |