From: Jiri Slaby Date: Thu, 7 Feb 2008 08:16:42 +0000 (-0800) Subject: Char: mxser, remove special baudrate processing X-Git-Tag: firefly_0821_release~22803 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d7f549fa14ed7e3d72927e89dec721eeff4a0159;p=firefly-linux-kernel-4.4.55.git Char: mxser, remove special baudrate processing Let the special baudrate processing on the tty layer. Also remove set/get_special_rate ioctls introduced in commit f64c84a1668930d1ca2b7dbaa92146c2139cb508, since it is no longer needed. Signed-off-by: Jiri Slaby Reviewed-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/char/mxser_new.c b/drivers/char/mxser_new.c index f74734b3407b..0b25457cda05 100644 --- a/drivers/char/mxser_new.c +++ b/drivers/char/mxser_new.c @@ -173,18 +173,6 @@ static struct pci_device_id mxser_pcibrds[] = { }; MODULE_DEVICE_TABLE(pci, mxser_pcibrds); -static int mxvar_baud_table[] = { - 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, - 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600 -}; -static unsigned int mxvar_baud_table1[] = { - 0, B50, B75, B110, B134, B150, B200, B300, B600, B1200, B1800, B2400, - B4800, B9600, B19200, B38400, B57600, B115200, B230400, B460800, B921600 -}; -#define BAUD_TABLE_NO ARRAY_SIZE(mxvar_baud_table) - -#define B_SPEC B2000000 - static int ioaddr[MXSER_BOARDS] = { 0, 0, 0, 0 }; static int ttymajor = MXSERMAJOR; static int calloutmajor = MXSERCUMAJOR; @@ -243,10 +231,8 @@ struct mxser_port { int rx_trigger; /* Rx fifo trigger level */ int rx_low_water; int baud_base; /* max. speed */ - long realbaud; int type; /* UART type */ int flags; /* defined in tty.h */ - int speed; int x_char; /* xon/xoff character */ int IER; /* Interrupt Enable Register */ @@ -451,7 +437,6 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, static int mxser_set_baud(struct mxser_port *info, long newspd) { - unsigned int i; int quot = 0, baud; unsigned char cval; @@ -464,27 +449,17 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) if (newspd > info->max_baud) return -1; - info->realbaud = newspd; - for (i = 0; i < BAUD_TABLE_NO; i++) - if (newspd == mxvar_baud_table[i]) - break; - if (i == BAUD_TABLE_NO) { - quot = info->baud_base / info->speed; - if (info->speed <= 0 || info->speed > info->max_baud) - quot = 0; + if (newspd == 134) { + quot = 2 * info->baud_base / 269; + tty_encode_baud_rate(info->tty, 134, 134); + } else if (newspd) { + quot = info->baud_base / newspd; + if (quot == 0) + quot = 1; + baud = info->baud_base/quot; + tty_encode_baud_rate(info->tty, baud, baud); } else { - if (newspd == 134) { - quot = (2 * info->baud_base / 269); - tty_encode_baud_rate(info->tty, 134, 134); - } else if (newspd) { - quot = info->baud_base / newspd; - if (quot == 0) - quot = 1; - baud = info->baud_base/quot; - tty_encode_baud_rate(info->tty, baud, baud); - } else { - quot = 0; - } + quot = 0; } info->timeout = ((info->xmit_fifo_size * HZ * 10 * quot) / info->baud_base); @@ -507,17 +482,19 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) outb(quot >> 8, info->ioaddr + UART_DLM); /* MS of divisor */ outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */ - if (i == BAUD_TABLE_NO) { - quot = info->baud_base % info->speed; +#ifdef BOTHER + if (C_BAUD(info->tty) == BOTHER) { + quot = info->baud_base % newspd; quot *= 8; - if ((quot % info->speed) > (info->speed / 2)) { - quot /= info->speed; + if (quot % newspd > newspd / 2) { + quot /= newspd; quot++; - } else { - quot /= info->speed; - } + } else + quot /= newspd; + SET_MOXA_MUST_ENUM_VALUE(info->ioaddr, quot); } else +#endif SET_MOXA_MUST_ENUM_VALUE(info->ioaddr, 0); return 0; @@ -533,7 +510,6 @@ static int mxser_change_speed(struct mxser_port *info, unsigned cflag, cval, fcr; int ret = 0; unsigned char status; - long baud; if (!info->tty || !info->tty->termios) return ret; @@ -541,13 +517,8 @@ static int mxser_change_speed(struct mxser_port *info, if (!(info->ioaddr)) return ret; - if (mxser_set_baud_method[info->tty->index] == 0) { - if ((cflag & CBAUD) == B_SPEC) - baud = info->speed; - else - baud = tty_get_baud_rate(info->tty); - mxser_set_baud(info, baud); - } + if (mxser_set_baud_method[info->tty->index] == 0) + mxser_set_baud(info, tty_get_baud_rate(info->tty)); /* byte size and parity */ switch (cflag & CSIZE) { @@ -1587,7 +1558,8 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) port->mon_data.up_txcnt; mon_data_ext.modem_status[i] = port->mon_data.modem_status; - mon_data_ext.baudrate[i] = port->realbaud; + mon_data_ext.baudrate[i] = + tty_get_baud_rate(port->tty); if (!port->tty || !port->tty->termios) { cflag = port->normal_termios.c_cflag; @@ -1645,7 +1617,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, struct serial_icounter_struct __user *p_cuser; unsigned long templ; unsigned long flags; - unsigned int i; void __user *argp = (void __user *)arg; int retval; @@ -1684,36 +1655,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, return 0; } - if (cmd == MOXA_SET_SPECIAL_BAUD_RATE) { - int speed; - - if (get_user(speed, (int __user *)argp)) - return -EFAULT; - if (speed <= 0 || speed > info->max_baud) - return -EFAULT; - if (!info->tty || !info->tty->termios || !info->ioaddr) - return 0; - info->tty->termios->c_cflag &= ~(CBAUD | CBAUDEX); - for (i = 0; i < BAUD_TABLE_NO; i++) - if (speed == mxvar_baud_table[i]) - break; - if (i == BAUD_TABLE_NO) { - info->tty->termios->c_cflag |= B_SPEC; - } else if (speed != 0) - info->tty->termios->c_cflag |= mxvar_baud_table1[i]; - - info->speed = speed; - spin_lock_irqsave(&info->slock, flags); - mxser_change_speed(info, NULL); - spin_unlock_irqrestore(&info->slock, flags); - - return 0; - } else if (cmd == MOXA_GET_SPECIAL_BAUD_RATE) { - if (copy_to_user(argp, &info->speed, sizeof(int))) - return -EFAULT; - return 0; - } - if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT && cmd != TIOCGICOUNT && test_bit(TTY_IO_ERROR, &tty->flags)) return -EIO; @@ -1807,20 +1748,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, info->mon_data.rxcnt = 0; info->mon_data.txcnt = 0; return 0; - case MOXA_ASPP_SETBAUD:{ - long baud; - if (get_user(baud, (long __user *)argp)) - return -EFAULT; - spin_lock_irqsave(&info->slock, flags); - mxser_set_baud(info, baud); - spin_unlock_irqrestore(&info->slock, flags); - return 0; - } - case MOXA_ASPP_GETBAUD: - if (copy_to_user(argp, &info->realbaud, sizeof(long))) - return -EFAULT; - - return 0; case MOXA_ASPP_OQUEUE:{ int len, lsr; @@ -2434,7 +2361,6 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, info->normal_termios = mxvar_sdriver->init_termios; init_waitqueue_head(&info->open_wait); init_waitqueue_head(&info->delta_msr_wait); - info->speed = 9600; memset(&info->mon_data, 0, sizeof(struct mxser_mon)); info->err_shadow = 0; spin_lock_init(&info->slock); diff --git a/drivers/char/mxser_new.h b/drivers/char/mxser_new.h index d42f7766c652..7f7b4a711cfc 100644 --- a/drivers/char/mxser_new.h +++ b/drivers/char/mxser_new.h @@ -29,14 +29,10 @@ #define MOXA_SDS_RSTICOUNTER (MOXA + 69) #define MOXA_ASPP_OQUEUE (MOXA + 70) -#define MOXA_ASPP_SETBAUD (MOXA + 71) -#define MOXA_ASPP_GETBAUD (MOXA + 72) #define MOXA_ASPP_MON (MOXA + 73) #define MOXA_ASPP_LSTATUS (MOXA + 74) #define MOXA_ASPP_MON_EXT (MOXA + 75) #define MOXA_SET_BAUD_METHOD (MOXA + 76) -#define MOXA_SET_SPECIAL_BAUD_RATE (MOXA + 77) -#define MOXA_GET_SPECIAL_BAUD_RATE (MOXA + 78) /* --------------------------------------------------- */