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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
f64c84a166, since it is no longer needed.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiri Slaby
Linus Torvalds
parent
f29e37c076
commit
d7f549fa14
@ -173,18 +173,6 @@ static struct pci_device_id mxser_pcibrds[] = {
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};
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MODULE_DEVICE_TABLE(pci, mxser_pcibrds);
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static int mxvar_baud_table[] = {
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0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400,
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4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600
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};
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static unsigned int mxvar_baud_table1[] = {
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0, B50, B75, B110, B134, B150, B200, B300, B600, B1200, B1800, B2400,
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B4800, B9600, B19200, B38400, B57600, B115200, B230400, B460800, B921600
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};
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#define BAUD_TABLE_NO ARRAY_SIZE(mxvar_baud_table)
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#define B_SPEC B2000000
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static int ioaddr[MXSER_BOARDS] = { 0, 0, 0, 0 };
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static int ttymajor = MXSERMAJOR;
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static int calloutmajor = MXSERCUMAJOR;
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@ -243,10 +231,8 @@ struct mxser_port {
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int rx_trigger; /* Rx fifo trigger level */
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int rx_low_water;
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int baud_base; /* max. speed */
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long realbaud;
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int type; /* UART type */
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int flags; /* defined in tty.h */
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int speed;
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int x_char; /* xon/xoff character */
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int IER; /* Interrupt Enable Register */
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@ -451,7 +437,6 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
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static int mxser_set_baud(struct mxser_port *info, long newspd)
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{
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unsigned int i;
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int quot = 0, baud;
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unsigned char cval;
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@ -464,27 +449,17 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
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if (newspd > info->max_baud)
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return -1;
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info->realbaud = newspd;
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for (i = 0; i < BAUD_TABLE_NO; i++)
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if (newspd == mxvar_baud_table[i])
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break;
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if (i == BAUD_TABLE_NO) {
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quot = info->baud_base / info->speed;
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if (info->speed <= 0 || info->speed > info->max_baud)
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quot = 0;
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if (newspd == 134) {
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quot = 2 * info->baud_base / 269;
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tty_encode_baud_rate(info->tty, 134, 134);
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} else if (newspd) {
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quot = info->baud_base / newspd;
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if (quot == 0)
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quot = 1;
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baud = info->baud_base/quot;
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tty_encode_baud_rate(info->tty, baud, baud);
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} else {
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if (newspd == 134) {
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quot = (2 * info->baud_base / 269);
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tty_encode_baud_rate(info->tty, 134, 134);
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} else if (newspd) {
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quot = info->baud_base / newspd;
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if (quot == 0)
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quot = 1;
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baud = info->baud_base/quot;
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tty_encode_baud_rate(info->tty, baud, baud);
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} else {
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quot = 0;
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}
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quot = 0;
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}
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info->timeout = ((info->xmit_fifo_size * HZ * 10 * quot) / info->baud_base);
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@ -507,17 +482,19 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
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outb(quot >> 8, info->ioaddr + UART_DLM); /* MS of divisor */
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outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */
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if (i == BAUD_TABLE_NO) {
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quot = info->baud_base % info->speed;
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#ifdef BOTHER
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if (C_BAUD(info->tty) == BOTHER) {
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quot = info->baud_base % newspd;
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quot *= 8;
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if ((quot % info->speed) > (info->speed / 2)) {
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quot /= info->speed;
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if (quot % newspd > newspd / 2) {
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quot /= newspd;
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quot++;
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} else {
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quot /= info->speed;
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}
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} else
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quot /= newspd;
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SET_MOXA_MUST_ENUM_VALUE(info->ioaddr, quot);
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} else
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#endif
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SET_MOXA_MUST_ENUM_VALUE(info->ioaddr, 0);
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return 0;
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@ -533,7 +510,6 @@ static int mxser_change_speed(struct mxser_port *info,
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unsigned cflag, cval, fcr;
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int ret = 0;
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unsigned char status;
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long baud;
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if (!info->tty || !info->tty->termios)
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return ret;
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@ -541,13 +517,8 @@ static int mxser_change_speed(struct mxser_port *info,
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if (!(info->ioaddr))
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return ret;
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if (mxser_set_baud_method[info->tty->index] == 0) {
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if ((cflag & CBAUD) == B_SPEC)
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baud = info->speed;
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else
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baud = tty_get_baud_rate(info->tty);
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mxser_set_baud(info, baud);
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}
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if (mxser_set_baud_method[info->tty->index] == 0)
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mxser_set_baud(info, tty_get_baud_rate(info->tty));
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/* byte size and parity */
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switch (cflag & CSIZE) {
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@ -1587,7 +1558,8 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
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port->mon_data.up_txcnt;
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mon_data_ext.modem_status[i] =
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port->mon_data.modem_status;
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mon_data_ext.baudrate[i] = port->realbaud;
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mon_data_ext.baudrate[i] =
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tty_get_baud_rate(port->tty);
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if (!port->tty || !port->tty->termios) {
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cflag = port->normal_termios.c_cflag;
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@ -1645,7 +1617,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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struct serial_icounter_struct __user *p_cuser;
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unsigned long templ;
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unsigned long flags;
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unsigned int i;
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void __user *argp = (void __user *)arg;
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int retval;
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@ -1684,36 +1655,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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return 0;
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}
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if (cmd == MOXA_SET_SPECIAL_BAUD_RATE) {
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int speed;
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if (get_user(speed, (int __user *)argp))
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return -EFAULT;
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if (speed <= 0 || speed > info->max_baud)
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return -EFAULT;
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if (!info->tty || !info->tty->termios || !info->ioaddr)
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return 0;
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info->tty->termios->c_cflag &= ~(CBAUD | CBAUDEX);
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for (i = 0; i < BAUD_TABLE_NO; i++)
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if (speed == mxvar_baud_table[i])
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break;
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if (i == BAUD_TABLE_NO) {
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info->tty->termios->c_cflag |= B_SPEC;
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} else if (speed != 0)
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info->tty->termios->c_cflag |= mxvar_baud_table1[i];
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info->speed = speed;
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spin_lock_irqsave(&info->slock, flags);
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mxser_change_speed(info, NULL);
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spin_unlock_irqrestore(&info->slock, flags);
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return 0;
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} else if (cmd == MOXA_GET_SPECIAL_BAUD_RATE) {
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if (copy_to_user(argp, &info->speed, sizeof(int)))
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return -EFAULT;
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return 0;
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}
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if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT && cmd != TIOCGICOUNT &&
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test_bit(TTY_IO_ERROR, &tty->flags))
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return -EIO;
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@ -1807,20 +1748,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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info->mon_data.rxcnt = 0;
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info->mon_data.txcnt = 0;
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return 0;
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case MOXA_ASPP_SETBAUD:{
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long baud;
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if (get_user(baud, (long __user *)argp))
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return -EFAULT;
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spin_lock_irqsave(&info->slock, flags);
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mxser_set_baud(info, baud);
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spin_unlock_irqrestore(&info->slock, flags);
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return 0;
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}
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case MOXA_ASPP_GETBAUD:
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if (copy_to_user(argp, &info->realbaud, sizeof(long)))
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return -EFAULT;
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return 0;
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case MOXA_ASPP_OQUEUE:{
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int len, lsr;
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@ -2434,7 +2361,6 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
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info->normal_termios = mxvar_sdriver->init_termios;
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init_waitqueue_head(&info->open_wait);
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init_waitqueue_head(&info->delta_msr_wait);
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info->speed = 9600;
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memset(&info->mon_data, 0, sizeof(struct mxser_mon));
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info->err_shadow = 0;
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spin_lock_init(&info->slock);
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@ -29,14 +29,10 @@
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#define MOXA_SDS_RSTICOUNTER (MOXA + 69)
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#define MOXA_ASPP_OQUEUE (MOXA + 70)
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#define MOXA_ASPP_SETBAUD (MOXA + 71)
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#define MOXA_ASPP_GETBAUD (MOXA + 72)
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#define MOXA_ASPP_MON (MOXA + 73)
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#define MOXA_ASPP_LSTATUS (MOXA + 74)
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#define MOXA_ASPP_MON_EXT (MOXA + 75)
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#define MOXA_SET_BAUD_METHOD (MOXA + 76)
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#define MOXA_SET_SPECIAL_BAUD_RATE (MOXA + 77)
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#define MOXA_GET_SPECIAL_BAUD_RATE (MOXA + 78)
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/* --------------------------------------------------- */
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