X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fchar%2Friscom8.c;h=e2a94bfb2a436dd5d24e68fb8388721351a6acdb;hb=refs%2Fheads%2Fvserver;hp=119e629656b7b4d5e835ec1fe11a423a4f35c258;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c index 119e62965..e2a94bfb2 100644 --- a/drivers/char/riscom8.c +++ b/drivers/char/riscom8.c @@ -81,12 +81,6 @@ static struct riscom_board * IRQ_to_board[16]; static struct tty_driver *riscom_driver; -static unsigned char * tmp_buf; - -static unsigned long baud_table[] = { - 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, - 9600, 19200, 38400, 57600, 76800, 0, -}; static struct riscom_board rc_board[RC_NBOARD] = { { @@ -551,7 +545,7 @@ static inline void rc_check_modem(struct riscom_board const * bp) } /* The main interrupt processing routine */ -static irqreturn_t rc_interrupt(int irq, void * dev_id, struct pt_regs * regs) +static irqreturn_t rc_interrupt(int irq, void * dev_id) { unsigned char status; unsigned char ack; @@ -560,11 +554,10 @@ static irqreturn_t rc_interrupt(int irq, void * dev_id, struct pt_regs * regs) int handled = 0; bp = IRQ_to_board[irq]; - - if (!bp || !(bp->flags & RC_BOARD_ACTIVE)) { + + if (!(bp->flags & RC_BOARD_ACTIVE)) return IRQ_NONE; - } - + while ((++loop < 16) && ((status = ~(rc_in(bp, RC_BSR))) & (RC_BSR_TOUT | RC_BSR_TINT | RC_BSR_MINT | RC_BSR_RINT))) { @@ -625,7 +618,7 @@ static inline int rc_setup_board(struct riscom_board * bp) if (bp->flags & RC_BOARD_ACTIVE) return 0; - error = request_irq(bp->irq, rc_interrupt, SA_INTERRUPT, + error = request_irq(bp->irq, rc_interrupt, IRQF_DISABLED, "RISCom/8", NULL); if (error) return error; @@ -675,26 +668,12 @@ static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port) port->COR2 = 0; port->MSVR = MSVR_RTS; - baud = C_BAUD(tty); - - if (baud & CBAUDEX) { - baud &= ~CBAUDEX; - if (baud < 1 || baud > 2) - port->tty->termios->c_cflag &= ~CBAUDEX; - else - baud += 15; - } - if (baud == 15) { - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - baud ++; - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - baud += 2; - } + baud = tty_get_baud_rate(tty); /* Select port on the board */ rc_out(bp, CD180_CAR, port_No(port)); - if (!baud_table[baud]) { + if (!baud) { /* Drop DTR & exit */ bp->DTR |= (1u << port_No(port)); rc_out(bp, RC_DTR, bp->DTR); @@ -710,7 +689,7 @@ static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port) */ /* Set baud rate for port */ - tmp = (((RC_OSCFREQ + baud_table[baud]/2) / baud_table[baud] + + tmp = (((RC_OSCFREQ + baud/2) / baud + CD180_TPC/2) / CD180_TPC); rc_out(bp, CD180_RBPRH, (tmp >> 8) & 0xff); @@ -718,7 +697,7 @@ static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port) rc_out(bp, CD180_RBPRL, tmp & 0xff); rc_out(bp, CD180_TBPRL, tmp & 0xff); - baud = (baud_table[baud] + 5) / 10; /* Estimated CPS */ + baud = (baud + 5) / 10; /* Estimated CPS */ /* Two timer ticks seems enough to wakeup something like SLIP driver */ tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO; @@ -1138,7 +1117,7 @@ static int rc_write(struct tty_struct * tty, bp = port_Board(port); - if (!tty || !port->xmit_buf || !tmp_buf) + if (!tty || !port->xmit_buf) return 0; save_flags(flags); @@ -1532,9 +1511,9 @@ static void rc_start(struct tty_struct * tty) * do_rc_hangup() -> tty->hangup() -> rc_hangup() * */ -static void do_rc_hangup(void *private_) +static void do_rc_hangup(struct work_struct *ugly_api) { - struct riscom_port *port = (struct riscom_port *) private_; + struct riscom_port *port = container_of(ugly_api, struct riscom_port, tqueue_hangup); struct tty_struct *tty; tty = port->tty; @@ -1560,7 +1539,7 @@ static void rc_hangup(struct tty_struct * tty) wake_up_interruptible(&port->open_wait); } -static void rc_set_termios(struct tty_struct * tty, struct termios * old_termios) +static void rc_set_termios(struct tty_struct * tty, struct ktermios * old_termios) { struct riscom_port *port = (struct riscom_port *)tty->driver_data; unsigned long flags; @@ -1583,9 +1562,9 @@ static void rc_set_termios(struct tty_struct * tty, struct termios * old_termios } } -static void do_softint(void *private_) +static void do_softint(struct work_struct *ugly_api) { - struct riscom_port *port = (struct riscom_port *) private_; + struct riscom_port *port = container_of(ugly_api, struct riscom_port, tqueue); struct tty_struct *tty; if(!(tty = port->tty)) @@ -1597,7 +1576,7 @@ static void do_softint(void *private_) } } -static struct tty_operations riscom_ops = { +static const struct tty_operations riscom_ops = { .open = rc_open, .close = rc_close, .write = rc_write, @@ -1626,25 +1605,20 @@ static inline int rc_init_drivers(void) if (!riscom_driver) return -ENOMEM; - if (!(tmp_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL))) { - printk(KERN_ERR "rc: Couldn't get free page.\n"); - put_tty_driver(riscom_driver); - return 1; - } memset(IRQ_to_board, 0, sizeof(IRQ_to_board)); riscom_driver->owner = THIS_MODULE; riscom_driver->name = "ttyL"; - riscom_driver->devfs_name = "tts/L"; riscom_driver->major = RISCOM8_NORMAL_MAJOR; riscom_driver->type = TTY_DRIVER_TYPE_SERIAL; riscom_driver->subtype = SERIAL_TYPE_NORMAL; riscom_driver->init_termios = tty_std_termios; riscom_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; + riscom_driver->init_termios.c_ispeed = 9600; + riscom_driver->init_termios.c_ospeed = 9600; riscom_driver->flags = TTY_DRIVER_REAL_RAW; tty_set_operations(riscom_driver, &riscom_ops); if ((error = tty_register_driver(riscom_driver))) { - free_page((unsigned long)tmp_buf); put_tty_driver(riscom_driver); printk(KERN_ERR "rc: Couldn't register RISCom/8 driver, " "error = %d\n", @@ -1655,8 +1629,8 @@ static inline int rc_init_drivers(void) memset(rc_port, 0, sizeof(rc_port)); for (i = 0; i < RC_NPORT * RC_NBOARD; i++) { rc_port[i].magic = RISCOM8_MAGIC; - INIT_WORK(&rc_port[i].tqueue, do_softint, &rc_port[i]); - INIT_WORK(&rc_port[i].tqueue_hangup, do_rc_hangup, &rc_port[i]); + INIT_WORK(&rc_port[i].tqueue, do_softint); + INIT_WORK(&rc_port[i].tqueue_hangup, do_rc_hangup); rc_port[i].close_delay = 50 * HZ/100; rc_port[i].closing_wait = 3000 * HZ/100; init_waitqueue_head(&rc_port[i].open_wait); @@ -1672,7 +1646,6 @@ static void rc_release_drivers(void) save_flags(flags); cli(); - free_page((unsigned long)tmp_buf); tty_unregister_driver(riscom_driver); put_tty_driver(riscom_driver); restore_flags(flags); @@ -1743,10 +1716,10 @@ static int iobase; static int iobase1; static int iobase2; static int iobase3; -MODULE_PARM(iobase, "i"); -MODULE_PARM(iobase1, "i"); -MODULE_PARM(iobase2, "i"); -MODULE_PARM(iobase3, "i"); +module_param(iobase, int, 0); +module_param(iobase1, int, 0); +module_param(iobase2, int, 0); +module_param(iobase3, int, 0); MODULE_LICENSE("GPL"); #endif /* MODULE */