static void ambauart_change_speed(struct uart_port *port, u_int cflag, u_int iflag, u_int quot)
{
u_int lcr, old_ier, fcr=0;
unsigned long flags;
#if DEBUG
printk("ambauart_set_cflag(0x%x) called\n", cflag);
#endif
//printk("ambauart_change_speed\n");
/* byte size and parity */
switch (cflag & CSIZE) {
case CS5: lcr = KS8695_UART_LINEC_WLEN5; break;
case CS6: lcr = KS8695_UART_LINEC_WLEN6; break;
case CS7: lcr = KS8695_UART_LINEC_WLEN7; break;
default: lcr = KS8695_UART_LINEC_WLEN8; break; // CS8
}
if (cflag & CSTOPB)
lcr |= KS8695_UART_LINEC_STP2;
if (cflag & PARENB) {
lcr |= KS8695_UART_LINEC_PEN;
if (!(cflag & PARODD))
lcr |= KS8695_UART_LINEC_EPS;
}
if (port->fifosize > 1)
fcr = KS8695_UART_FIFO_TRIG04 | KS8695_UART_FIFO_TXRST | KS8695_UART_FIFO_RXRST | KS8695_UART_FIFO_FEN;
port->read_status_mask = KS8695_UART_LINES_OE;
if (iflag & INPCK)
port->read_status_mask |= (KS8695_UART_LINES_FE | KS8695_UART_LINES_PE);
if (iflag & (BRKINT | PARMRK))
port->read_status_mask |= KS8695_UART_LINES_BE;
/*
* Characters to ignore
*/
port->ignore_status_mask = 0;
if (iflag & IGNPAR)
port->ignore_status_mask |= (KS8695_UART_LINES_FE | KS8695_UART_LINES_PE);
if (iflag & IGNBRK) {
port->ignore_status_mask |= KS8695_UART_LINES_BE;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (iflag & IGNPAR)
port->ignore_status_mask |= KS8695_UART_LINES_OE;
}
/*
* Ignore all characters if CREAD is not set.
*/
if ((cflag & CREAD) == 0)
port->ignore_status_mask |= UART_DUMMY_LSR_RX;
/* first, disable everything */
save_flags(flags); cli();
old_ier = UART_GET_IER(port);
UART_PUT_IER(port, old_ier & 0xFFFFF0FF);
old_ier &= ~KS8695_INT_ENABLE_MODEM;
if ((port->flags & ASYNC_HARDPPS_CD) ||
(cflag & CRTSCTS) || !(cflag & CLOCAL))
old_ier |= KS8695_INT_ENABLE_MODEM;
/* Set baud rate */
// UART_PUT_BRDR(port, port->uartclk / quot);
UART_PUT_BRDR(port, 0x28B);
UART_PUT_LCR(port, lcr);
UART_PUT_FCR(port, fcr);
UART_PUT_IER(port, old_ier & 0xFFFFFEFF);
restore_flags(flags);
}
static void ks8695uart_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old)
{
unsigned int lcr, fcr = 0;
unsigned long flags;
unsigned int baud, quot;
/*
* Ask the core to calculate the divisor for us.
*/
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
quot = uart_get_divisor(port, baud);
switch (termios->c_cflag & CSIZE) {
case CS5:
lcr = URCL_5;
break;
case CS6:
lcr = URCL_6;
break;
case CS7:
lcr = URCL_7;
break;
default:
lcr = URCL_8;
break;
}
/* stop bits */
if (termios->c_cflag & CSTOPB)
lcr |= URLC_URSB;
/* parity */
if (termios->c_cflag & PARENB) {
if (termios->c_cflag & CMSPAR) { /* Mark or Space parity */
if (termios->c_cflag & PARODD)
lcr |= URPE_MARK;
else
lcr |= URPE_SPACE;
}
else if (termios->c_cflag & PARODD)
lcr |= URPE_ODD;
else
lcr |= URPE_EVEN;
}
if (port->fifosize > 1)
fcr = URFC_URFRT_8 | URFC_URTFR | URFC_URRFR | URFC_URFE;
spin_lock_irqsave(&port->lock, flags);
/*
* Update the per-port timeout.
*/
uart_update_timeout(port, termios->c_cflag, baud);
port->read_status_mask = URLS_URROE;
if (termios->c_iflag & INPCK)
port->read_status_mask |= (URLS_URFE | URLS_URPE);
if (termios->c_iflag & (BRKINT | PARMRK))
port->read_status_mask |= URLS_URBI;
/*
* Characters to ignore
*/
port->ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
port->ignore_status_mask |= (URLS_URFE | URLS_URPE);
if (termios->c_iflag & IGNBRK) {
port->ignore_status_mask |= URLS_URBI;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
port->ignore_status_mask |= URLS_URROE;
}
/*
* Ignore all characters if CREAD is not set.
*/
if ((termios->c_cflag & CREAD) == 0)
port->ignore_status_mask |= UART_DUMMY_LSR_RX;
/* first, disable everything */
if (UART_ENABLE_MS(port, termios->c_cflag))
ks8695uart_enable_ms(port);
else
ks8695uart_disable_ms(port);
/* Set baud rate */
UART_PUT_BRDR(port, quot);
UART_PUT_LCR(port, lcr);
UART_PUT_FCR(port, fcr);
spin_unlock_irqrestore(&port->lock, flags);
}
static void ks8695uart_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old)
{
unsigned int lcr, fcr = 0;
unsigned long flags;
unsigned int baud, quot;
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
quot = uart_get_divisor(port, baud);
switch (termios->c_cflag & CSIZE) {
case CS5:
lcr = URCL_5;
break;
case CS6:
lcr = URCL_6;
break;
case CS7:
lcr = URCL_7;
break;
default:
lcr = URCL_8;
break;
}
if (termios->c_cflag & CSTOPB)
lcr |= URLC_URSB;
if (termios->c_cflag & PARENB) {
if (termios->c_cflag & CMSPAR) {
if (termios->c_cflag & PARODD)
lcr |= URPE_MARK;
else
lcr |= URPE_SPACE;
}
else if (termios->c_cflag & PARODD)
lcr |= URPE_ODD;
else
lcr |= URPE_EVEN;
}
if (port->fifosize > 1)
fcr = URFC_URFRT_8 | URFC_URTFR | URFC_URRFR | URFC_URFE;
spin_lock_irqsave(&port->lock, flags);
uart_update_timeout(port, termios->c_cflag, baud);
port->read_status_mask = URLS_URROE;
if (termios->c_iflag & INPCK)
port->read_status_mask |= (URLS_URFE | URLS_URPE);
if (termios->c_iflag & (BRKINT | PARMRK))
port->read_status_mask |= URLS_URBI;
port->ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
port->ignore_status_mask |= (URLS_URFE | URLS_URPE);
if (termios->c_iflag & IGNBRK) {
port->ignore_status_mask |= URLS_URBI;
if (termios->c_iflag & IGNPAR)
port->ignore_status_mask |= URLS_URROE;
}
if ((termios->c_cflag & CREAD) == 0)
port->ignore_status_mask |= UART_DUMMY_LSR_RX;
if (UART_ENABLE_MS(port, termios->c_cflag))
ks8695uart_enable_ms(port);
else
ks8695uart_disable_ms(port);
UART_PUT_BRDR(port, quot);
UART_PUT_LCR(port, lcr);
UART_PUT_FCR(port, fcr);
spin_unlock_irqrestore(&port->lock, flags);
}
