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path: root/drivers/tty/serial/8250/8250.c
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Diffstat (limited to 'drivers/tty/serial/8250/8250.c')
-rw-r--r--drivers/tty/serial/8250/8250.c160
1 files changed, 80 insertions, 80 deletions
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c
index a0d114d8bae..7898295e414 100644
--- a/drivers/tty/serial/8250/8250.c
+++ b/drivers/tty/serial/8250/8250.c
@@ -1287,7 +1287,7 @@ static void serial8250_start_tx(struct uart_port *port)
if (!(up->ier & UART_IER_THRI)) {
up->ier |= UART_IER_THRI;
- serial_out(up, UART_IER, up->ier);
+ serial_port_out(port, UART_IER, up->ier);
if (up->bugs & UART_BUG_TXEN) {
unsigned char lsr;
@@ -1316,7 +1316,7 @@ static void serial8250_stop_rx(struct uart_port *port)
up->ier &= ~UART_IER_RLSI;
up->port.read_status_mask &= ~UART_LSR_DR;
- serial_out(up, UART_IER, up->ier);
+ serial_port_out(port, UART_IER, up->ier);
}
static void serial8250_enable_ms(struct uart_port *port)
@@ -1329,7 +1329,7 @@ static void serial8250_enable_ms(struct uart_port *port)
return;
up->ier |= UART_IER_MSI;
- serial_out(up, UART_IER, up->ier);
+ serial_port_out(port, UART_IER, up->ier);
}
/*
@@ -1523,7 +1523,7 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
spin_lock_irqsave(&port->lock, flags);
- status = serial_in(up, UART_LSR);
+ status = serial_port_in(port, UART_LSR);
DEBUG_INTR("status = %x...", status);
@@ -1540,9 +1540,7 @@ EXPORT_SYMBOL_GPL(serial8250_handle_irq);
static int serial8250_default_handle_irq(struct uart_port *port)
{
- struct uart_8250_port *up =
- container_of(port, struct uart_8250_port, port);
- unsigned int iir = serial_in(up, UART_IIR);
+ unsigned int iir = serial_port_in(port, UART_IIR);
return serial8250_handle_irq(port, iir);
}
@@ -1776,7 +1774,7 @@ static unsigned int serial8250_tx_empty(struct uart_port *port)
unsigned int lsr;
spin_lock_irqsave(&port->lock, flags);
- lsr = serial_in(up, UART_LSR);
+ lsr = serial_port_in(port, UART_LSR);
up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
spin_unlock_irqrestore(&port->lock, flags);
@@ -1823,7 +1821,7 @@ static void serial8250_set_mctrl(struct uart_port *port, unsigned int mctrl)
mcr = (mcr & up->mcr_mask) | up->mcr_force | up->mcr;
- serial_out(up, UART_MCR, mcr);
+ serial_port_out(port, UART_MCR, mcr);
}
static void serial8250_break_ctl(struct uart_port *port, int break_state)
@@ -1837,7 +1835,7 @@ static void serial8250_break_ctl(struct uart_port *port, int break_state)
up->lcr |= UART_LCR_SBC;
else
up->lcr &= ~UART_LCR_SBC;
- serial_out(up, UART_LCR, up->lcr);
+ serial_port_out(port, UART_LCR, up->lcr);
spin_unlock_irqrestore(&port->lock, flags);
}
@@ -1883,14 +1881,12 @@ static void wait_for_xmitr(struct uart_8250_port *up, int bits)
static int serial8250_get_poll_char(struct uart_port *port)
{
- struct uart_8250_port *up =
- container_of(port, struct uart_8250_port, port);
- unsigned char lsr = serial_in(up, UART_LSR);
+ unsigned char lsr = serial_port_in(port, UART_LSR);
if (!(lsr & UART_LSR_DR))
return NO_POLL_CHAR;
- return serial_in(up, UART_RX);
+ return serial_port_in(port, UART_RX);
}
@@ -1904,21 +1900,21 @@ static void serial8250_put_poll_char(struct uart_port *port,
/*
* First save the IER then disable the interrupts
*/
- ier = serial_in(up, UART_IER);
+ ier = serial_port_in(port, UART_IER);
if (up->capabilities & UART_CAP_UUE)
- serial_out(up, UART_IER, UART_IER_UUE);
+ serial_port_out(port, UART_IER, UART_IER_UUE);
else
- serial_out(up, UART_IER, 0);
+ serial_port_out(port, UART_IER, 0);
wait_for_xmitr(up, BOTH_EMPTY);
/*
* Send the character out.
* If a LF, also do CR...
*/
- serial_out(up, UART_TX, c);
+ serial_port_out(port, UART_TX, c);
if (c == 10) {
wait_for_xmitr(up, BOTH_EMPTY);
- serial_out(up, UART_TX, 13);
+ serial_port_out(port, UART_TX, 13);
}
/*
@@ -1926,7 +1922,7 @@ static void serial8250_put_poll_char(struct uart_port *port,
* and restore the IER
*/
wait_for_xmitr(up, BOTH_EMPTY);
- serial_out(up, UART_IER, ier);
+ serial_port_out(port, UART_IER, ier);
}
#endif /* CONFIG_CONSOLE_POLL */
@@ -1950,14 +1946,14 @@ static int serial8250_startup(struct uart_port *port)
if (port->type == PORT_16C950) {
/* Wake up and initialize UART */
up->acr = 0;
- serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
- serial_out(up, UART_EFR, UART_EFR_ECB);
- serial_out(up, UART_IER, 0);
- serial_out(up, UART_LCR, 0);
+ serial_port_out(port, UART_LCR, UART_LCR_CONF_MODE_B);
+ serial_port_out(port, UART_EFR, UART_EFR_ECB);
+ serial_port_out(port, UART_IER, 0);
+ serial_port_out(port, UART_LCR, 0);
serial_icr_write(up, UART_CSR, 0); /* Reset the UART */
- serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
- serial_out(up, UART_EFR, UART_EFR_ECB);
- serial_out(up, UART_LCR, 0);
+ serial_port_out(port, UART_LCR, UART_LCR_CONF_MODE_B);
+ serial_port_out(port, UART_EFR, UART_EFR_ECB);
+ serial_port_out(port, UART_LCR, 0);
}
#ifdef CONFIG_SERIAL_8250_RSA
@@ -1977,10 +1973,10 @@ static int serial8250_startup(struct uart_port *port)
/*
* Clear the interrupt registers.
*/
- serial_in(up, UART_LSR);
- serial_in(up, UART_RX);
- serial_in(up, UART_IIR);
- serial_in(up, UART_MSR);
+ serial_port_in(port, UART_LSR);
+ serial_port_in(port, UART_RX);
+ serial_port_in(port, UART_IIR);
+ serial_port_in(port, UART_MSR);
/*
* At this point, there's no way the LSR could still be 0xff;
@@ -1988,7 +1984,7 @@ static int serial8250_startup(struct uart_port *port)
* here.
*/
if (!(port->flags & UPF_BUGGY_UART) &&
- (serial_in(up, UART_LSR) == 0xff)) {
+ (serial_port_in(port, UART_LSR) == 0xff)) {
printk_ratelimited(KERN_INFO "ttyS%d: LSR safety check engaged!\n",
serial_index(port));
return -ENODEV;
@@ -2003,12 +1999,14 @@ static int serial8250_startup(struct uart_port *port)
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
fctr = serial_in(up, UART_FCTR) & ~(UART_FCTR_RX|UART_FCTR_TX);
- serial_out(up, UART_FCTR, fctr | UART_FCTR_TRGD | UART_FCTR_RX);
- serial_out(up, UART_TRG, UART_TRG_96);
- serial_out(up, UART_FCTR, fctr | UART_FCTR_TRGD | UART_FCTR_TX);
- serial_out(up, UART_TRG, UART_TRG_96);
+ serial_port_out(port, UART_FCTR,
+ fctr | UART_FCTR_TRGD | UART_FCTR_RX);
+ serial_port_out(port, UART_TRG, UART_TRG_96);
+ serial_port_out(port, UART_FCTR,
+ fctr | UART_FCTR_TRGD | UART_FCTR_TX);
+ serial_port_out(port, UART_TRG, UART_TRG_96);
- serial_out(up, UART_LCR, 0);
+ serial_port_out(port, UART_LCR, 0);
}
if (port->irq) {
@@ -2028,12 +2026,12 @@ static int serial8250_startup(struct uart_port *port)
wait_for_xmitr(up, UART_LSR_THRE);
serial_out_sync(up, UART_IER, UART_IER_THRI);
udelay(1); /* allow THRE to set */
- iir1 = serial_in(up, UART_IIR);
- serial_out(up, UART_IER, 0);
+ iir1 = serial_port_in(port, UART_IIR);
+ serial_port_out(port, UART_IER, 0);
serial_out_sync(up, UART_IER, UART_IER_THRI);
udelay(1); /* allow a working UART time to re-assert THRE */
- iir = serial_in(up, UART_IIR);
- serial_out(up, UART_IER, 0);
+ iir = serial_port_in(port, UART_IIR);
+ serial_port_out(port, UART_IER, 0);
if (port->irqflags & IRQF_SHARED)
enable_irq(port->irq);
@@ -2078,7 +2076,7 @@ static int serial8250_startup(struct uart_port *port)
/*
* Now, initialize the UART
*/
- serial_out(up, UART_LCR, UART_LCR_WLEN8);
+ serial_port_out(port, UART_LCR, UART_LCR_WLEN8);
spin_lock_irqsave(&port->lock, flags);
if (up->port.flags & UPF_FOURPORT) {
@@ -2111,10 +2109,10 @@ static int serial8250_startup(struct uart_port *port)
* Do a quick test to see if we receive an
* interrupt when we enable the TX irq.
*/
- serial_out(up, UART_IER, UART_IER_THRI);
- lsr = serial_in(up, UART_LSR);
- iir = serial_in(up, UART_IIR);
- serial_out(up, UART_IER, 0);
+ serial_port_out(port, UART_IER, UART_IER_THRI);
+ lsr = serial_port_in(port, UART_LSR);
+ iir = serial_port_in(port, UART_IIR);
+ serial_port_out(port, UART_IER, 0);
if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT) {
if (!(up->bugs & UART_BUG_TXEN)) {
@@ -2134,10 +2132,10 @@ dont_test_tx_en:
* saved flags to avoid getting false values from polling
* routines or the previous session.
*/
- serial_in(up, UART_LSR);
- serial_in(up, UART_RX);
- serial_in(up, UART_IIR);
- serial_in(up, UART_MSR);
+ serial_port_in(port, UART_LSR);
+ serial_port_in(port, UART_RX);
+ serial_port_in(port, UART_IIR);
+ serial_port_in(port, UART_MSR);
up->lsr_saved_flags = 0;
up->msr_saved_flags = 0;
@@ -2147,7 +2145,7 @@ dont_test_tx_en:
* anyway, so we don't enable them here.
*/
up->ier = UART_IER_RLSI | UART_IER_RDI;
- serial_out(up, UART_IER, up->ier);
+ serial_port_out(port, UART_IER, up->ier);
if (port->flags & UPF_FOURPORT) {
unsigned int icp;
@@ -2172,7 +2170,7 @@ static void serial8250_shutdown(struct uart_port *port)
* Disable interrupts from this port
*/
up->ier = 0;
- serial_out(up, UART_IER, 0);
+ serial_port_out(port, UART_IER, 0);
spin_lock_irqsave(&port->lock, flags);
if (port->flags & UPF_FOURPORT) {
@@ -2188,7 +2186,8 @@ static void serial8250_shutdown(struct uart_port *port)
/*
* Disable break condition and FIFOs
*/
- serial_out(up, UART_LCR, serial_in(up, UART_LCR) & ~UART_LCR_SBC);
+ serial_port_out(port, UART_LCR,
+ serial_port_in(port, UART_LCR) & ~UART_LCR_SBC);
serial8250_clear_fifos(up);
#ifdef CONFIG_SERIAL_8250_RSA
@@ -2202,7 +2201,7 @@ static void serial8250_shutdown(struct uart_port *port)
* Read data port to reset things, and then unlink from
* the IRQ chain.
*/
- serial_in(up, UART_RX);
+ serial_port_in(port, UART_RX);
del_timer_sync(&up->timer);
up->timer.function = serial8250_timeout;
@@ -2353,7 +2352,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
if (up->capabilities & UART_CAP_RTOIE)
up->ier |= UART_IER_RTOIE;
- serial_out(up, UART_IER, up->ier);
+ serial_port_out(port, UART_IER, up->ier);
if (up->capabilities & UART_CAP_EFR) {
unsigned char efr = 0;
@@ -2365,11 +2364,11 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
if (termios->c_cflag & CRTSCTS)
efr |= UART_EFR_CTS;
- serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+ serial_port_out(port, UART_LCR, UART_LCR_CONF_MODE_B);
if (port->flags & UPF_EXAR_EFR)
- serial_out(up, UART_XR_EFR, efr);
+ serial_port_out(port, UART_XR_EFR, efr);
else
- serial_out(up, UART_EFR, efr);
+ serial_port_out(port, UART_EFR, efr);
}
#ifdef CONFIG_ARCH_OMAP
@@ -2377,18 +2376,20 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
if (cpu_is_omap1510() && is_omap_port(up)) {
if (baud == 115200) {
quot = 1;
- serial_out(up, UART_OMAP_OSC_12M_SEL, 1);
+ serial_port_out(port, UART_OMAP_OSC_12M_SEL, 1);
} else
- serial_out(up, UART_OMAP_OSC_12M_SEL, 0);
+ serial_port_out(port, UART_OMAP_OSC_12M_SEL, 0);
}
#endif
- if (up->capabilities & UART_NATSEMI) {
- /* Switch to bank 2 not bank 1, to avoid resetting EXCR2 */
- serial_out(up, UART_LCR, 0xe0);
- } else {
- serial_out(up, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */
- }
+ /*
+ * For NatSemi, switch to bank 2 not bank 1, to avoid resetting EXCR2,
+ * otherwise just set DLAB
+ */
+ if (up->capabilities & UART_NATSEMI)
+ serial_port_out(port, UART_LCR, 0xe0);
+ else
+ serial_port_out(port, UART_LCR, cval | UART_LCR_DLAB);
serial_dl_write(up, quot);
@@ -2397,16 +2398,15 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
* is written without DLAB set, this mode will be disabled.
*/
if (port->type == PORT_16750)
- serial_out(up, UART_FCR, fcr);
+ serial_port_out(port, UART_FCR, fcr);
- serial_out(up, UART_LCR, cval); /* reset DLAB */
+ serial_port_out(port, UART_LCR, cval); /* reset DLAB */
up->lcr = cval; /* Save LCR */
if (port->type != PORT_16750) {
- if (fcr & UART_FCR_ENABLE_FIFO) {
- /* emulated UARTs (Lucent Venus 167x) need two steps */
- serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO);
- }
- serial_out(up, UART_FCR, fcr); /* set fcr */
+ /* emulated UARTs (Lucent Venus 167x) need two steps */
+ if (fcr & UART_FCR_ENABLE_FIFO)
+ serial_port_out(port, UART_FCR, UART_FCR_ENABLE_FIFO);
+ serial_port_out(port, UART_FCR, fcr); /* set fcr */
}
serial8250_set_mctrl(port, port->mctrl);
spin_unlock_irqrestore(&port->lock, flags);
@@ -2788,7 +2788,7 @@ static void serial8250_console_putchar(struct uart_port *port, int ch)
container_of(port, struct uart_8250_port, port);
wait_for_xmitr(up, UART_LSR_THRE);
- serial_out(up, UART_TX, ch);
+ serial_port_out(port, UART_TX, ch);
}
/*
@@ -2820,12 +2820,12 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
/*
* First save the IER then disable the interrupts
*/
- ier = serial_in(up, UART_IER);
+ ier = serial_port_in(port, UART_IER);
if (up->capabilities & UART_CAP_UUE)
- serial_out(up, UART_IER, UART_IER_UUE);
+ serial_port_out(port, UART_IER, UART_IER_UUE);
else
- serial_out(up, UART_IER, 0);
+ serial_port_out(port, UART_IER, 0);
uart_console_write(port, s, count, serial8250_console_putchar);
@@ -2834,7 +2834,7 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
* and restore the IER
*/
wait_for_xmitr(up, BOTH_EMPTY);
- serial_out(up, UART_IER, ier);
+ serial_port_out(port, UART_IER, ier);
/*
* The receive handling will happen properly because the
@@ -2996,11 +2996,11 @@ void serial8250_resume_port(int line)
if (up->capabilities & UART_NATSEMI) {
/* Ensure it's still in high speed mode */
- serial_out(up, UART_LCR, 0xE0);
+ serial_port_out(port, UART_LCR, 0xE0);
ns16550a_goto_highspeed(up);
- serial_out(up, UART_LCR, 0);
+ serial_port_out(port, UART_LCR, 0);
port->uartclk = 921600*16;
}
uart_resume_port(&serial8250_reg, port);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-24 19:35:16 +0000