Commit 7192f92c authored by Haavard Skinnemoen's avatar Haavard Skinnemoen Committed by Linus Torvalds

[PATCH] at91_serial -> atmel_serial: Internal names

Prefix all internal functions and variables with atmel_ instead of
at91_.

The at91_register_uart_fns() stuff is left as is since I can't find
any actual users of it.
Signed-off-by: default avatarHaavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: default avatarAndrew Victor <andrew@sanpeople.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 73e2798b
/*
* linux/drivers/char/at91_serial.c
*
* Driver for Atmel AT91RM9200 Serial ports
* Driver for Atmel AT91 / AT32 Serial ports
* Copyright (C) 2003 Rick Bronson
*
* Based on drivers/char/serial_sa1100.c, by Deep Blue Solutions Ltd.
......@@ -55,51 +55,51 @@
/* Use device name ttyAT, major 204 and minor 154-169. This is necessary if we
* should coexist with the 8250 driver, such as if we have an external 16C550
* UART. */
#define SERIAL_AT91_MAJOR 204
#define SERIAL_ATMEL_MAJOR 204
#define MINOR_START 154
#define AT91_DEVICENAME "ttyAT"
#define ATMEL_DEVICENAME "ttyAT"
#else
/* Use device name ttyS, major 4, minor 64-68. This is the usual serial port
* name, but it is legally reserved for the 8250 driver. */
#define SERIAL_AT91_MAJOR TTY_MAJOR
#define SERIAL_ATMEL_MAJOR TTY_MAJOR
#define MINOR_START 64
#define AT91_DEVICENAME "ttyS"
#define ATMEL_DEVICENAME "ttyS"
#endif
#define AT91_ISR_PASS_LIMIT 256
#define ATMEL_ISR_PASS_LIMIT 256
#define UART_PUT_CR(port,v) writel(v, (port)->membase + AT91_US_CR)
#define UART_GET_MR(port) readl((port)->membase + AT91_US_MR)
#define UART_PUT_MR(port,v) writel(v, (port)->membase + AT91_US_MR)
#define UART_PUT_IER(port,v) writel(v, (port)->membase + AT91_US_IER)
#define UART_PUT_IDR(port,v) writel(v, (port)->membase + AT91_US_IDR)
#define UART_GET_IMR(port) readl((port)->membase + AT91_US_IMR)
#define UART_GET_CSR(port) readl((port)->membase + AT91_US_CSR)
#define UART_GET_CHAR(port) readl((port)->membase + AT91_US_RHR)
#define UART_PUT_CHAR(port,v) writel(v, (port)->membase + AT91_US_THR)
#define UART_GET_BRGR(port) readl((port)->membase + AT91_US_BRGR)
#define UART_PUT_BRGR(port,v) writel(v, (port)->membase + AT91_US_BRGR)
#define UART_PUT_RTOR(port,v) writel(v, (port)->membase + AT91_US_RTOR)
#define UART_PUT_CR(port,v) writel(v, (port)->membase + ATMEL_US_CR)
#define UART_GET_MR(port) readl((port)->membase + ATMEL_US_MR)
#define UART_PUT_MR(port,v) writel(v, (port)->membase + ATMEL_US_MR)
#define UART_PUT_IER(port,v) writel(v, (port)->membase + ATMEL_US_IER)
#define UART_PUT_IDR(port,v) writel(v, (port)->membase + ATMEL_US_IDR)
#define UART_GET_IMR(port) readl((port)->membase + ATMEL_US_IMR)
#define UART_GET_CSR(port) readl((port)->membase + ATMEL_US_CSR)
#define UART_GET_CHAR(port) readl((port)->membase + ATMEL_US_RHR)
#define UART_PUT_CHAR(port,v) writel(v, (port)->membase + ATMEL_US_THR)
#define UART_GET_BRGR(port) readl((port)->membase + ATMEL_US_BRGR)
#define UART_PUT_BRGR(port,v) writel(v, (port)->membase + ATMEL_US_BRGR)
#define UART_PUT_RTOR(port,v) writel(v, (port)->membase + ATMEL_US_RTOR)
// #define UART_GET_CR(port) readl((port)->membase + AT91_US_CR) // is write-only
// #define UART_GET_CR(port) readl((port)->membase + ATMEL_US_CR) // is write-only
/* PDC registers */
#define UART_PUT_PTCR(port,v) writel(v, (port)->membase + AT91_PDC_PTCR)
#define UART_GET_PTSR(port) readl((port)->membase + AT91_PDC_PTSR)
#define UART_PUT_PTCR(port,v) writel(v, (port)->membase + ATMEL_PDC_PTCR)
#define UART_GET_PTSR(port) readl((port)->membase + ATMEL_PDC_PTSR)
#define UART_PUT_RPR(port,v) writel(v, (port)->membase + AT91_PDC_RPR)
#define UART_GET_RPR(port) readl((port)->membase + AT91_PDC_RPR)
#define UART_PUT_RCR(port,v) writel(v, (port)->membase + AT91_PDC_RCR)
#define UART_PUT_RNPR(port,v) writel(v, (port)->membase + AT91_PDC_RNPR)
#define UART_PUT_RNCR(port,v) writel(v, (port)->membase + AT91_PDC_RNCR)
#define UART_PUT_RPR(port,v) writel(v, (port)->membase + ATMEL_PDC_RPR)
#define UART_GET_RPR(port) readl((port)->membase + ATMEL_PDC_RPR)
#define UART_PUT_RCR(port,v) writel(v, (port)->membase + ATMEL_PDC_RCR)
#define UART_PUT_RNPR(port,v) writel(v, (port)->membase + ATMEL_PDC_RNPR)
#define UART_PUT_RNCR(port,v) writel(v, (port)->membase + ATMEL_PDC_RNCR)
#define UART_PUT_TPR(port,v) writel(v, (port)->membase + AT91_PDC_TPR)
#define UART_PUT_TCR(port,v) writel(v, (port)->membase + AT91_PDC_TCR)
//#define UART_PUT_TNPR(port,v) writel(v, (port)->membase + AT91_PDC_TNPR)
//#define UART_PUT_TNCR(port,v) writel(v, (port)->membase + AT91_PDC_TNCR)
#define UART_PUT_TPR(port,v) writel(v, (port)->membase + ATMEL_PDC_TPR)
#define UART_PUT_TCR(port,v) writel(v, (port)->membase + ATMEL_PDC_TCR)
//#define UART_PUT_TNPR(port,v) writel(v, (port)->membase + ATMEL_PDC_TNPR)
//#define UART_PUT_TNCR(port,v) writel(v, (port)->membase + ATMEL_PDC_TNCR)
static int (*at91_open)(struct uart_port *);
static void (*at91_close)(struct uart_port *);
......@@ -107,30 +107,30 @@ static void (*at91_close)(struct uart_port *);
/*
* We wrap our port structure around the generic uart_port.
*/
struct at91_uart_port {
struct atmel_uart_port {
struct uart_port uart; /* uart */
struct clk *clk; /* uart clock */
unsigned short suspended; /* is port suspended? */
};
static struct at91_uart_port at91_ports[ATMEL_MAX_UART];
static struct atmel_uart_port atmel_ports[ATMEL_MAX_UART];
#ifdef SUPPORT_SYSRQ
static struct console at91_console;
static struct console atmel_console;
#endif
/*
* Return TIOCSER_TEMT when transmitter FIFO and Shift register is empty.
*/
static u_int at91_tx_empty(struct uart_port *port)
static u_int atmel_tx_empty(struct uart_port *port)
{
return (UART_GET_CSR(port) & AT91_US_TXEMPTY) ? TIOCSER_TEMT : 0;
return (UART_GET_CSR(port) & ATMEL_US_TXEMPTY) ? TIOCSER_TEMT : 0;
}
/*
* Set state of the modem control output lines
*/
static void at91_set_mctrl(struct uart_port *port, u_int mctrl)
static void atmel_set_mctrl(struct uart_port *port, u_int mctrl)
{
unsigned int control = 0;
unsigned int mode;
......@@ -149,30 +149,30 @@ static void at91_set_mctrl(struct uart_port *port, u_int mctrl)
}
if (mctrl & TIOCM_RTS)
control |= AT91_US_RTSEN;
control |= ATMEL_US_RTSEN;
else
control |= AT91_US_RTSDIS;
control |= ATMEL_US_RTSDIS;
if (mctrl & TIOCM_DTR)
control |= AT91_US_DTREN;
control |= ATMEL_US_DTREN;
else
control |= AT91_US_DTRDIS;
control |= ATMEL_US_DTRDIS;
UART_PUT_CR(port, control);
/* Local loopback mode? */
mode = UART_GET_MR(port) & ~AT91_US_CHMODE;
mode = UART_GET_MR(port) & ~ATMEL_US_CHMODE;
if (mctrl & TIOCM_LOOP)
mode |= AT91_US_CHMODE_LOC_LOOP;
mode |= ATMEL_US_CHMODE_LOC_LOOP;
else
mode |= AT91_US_CHMODE_NORMAL;
mode |= ATMEL_US_CHMODE_NORMAL;
UART_PUT_MR(port, mode);
}
/*
* Get state of the modem control input lines
*/
static u_int at91_get_mctrl(struct uart_port *port)
static u_int atmel_get_mctrl(struct uart_port *port)
{
unsigned int status, ret = 0;
......@@ -181,13 +181,13 @@ static u_int at91_get_mctrl(struct uart_port *port)
/*
* The control signals are active low.
*/
if (!(status & AT91_US_DCD))
if (!(status & ATMEL_US_DCD))
ret |= TIOCM_CD;
if (!(status & AT91_US_CTS))
if (!(status & ATMEL_US_CTS))
ret |= TIOCM_CTS;
if (!(status & AT91_US_DSR))
if (!(status & ATMEL_US_DSR))
ret |= TIOCM_DSR;
if (!(status & AT91_US_RI))
if (!(status & ATMEL_US_RI))
ret |= TIOCM_RI;
return ret;
......@@ -196,62 +196,62 @@ static u_int at91_get_mctrl(struct uart_port *port)
/*
* Stop transmitting.
*/
static void at91_stop_tx(struct uart_port *port)
static void atmel_stop_tx(struct uart_port *port)
{
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
UART_PUT_IDR(port, AT91_US_TXRDY);
UART_PUT_IDR(port, ATMEL_US_TXRDY);
}
/*
* Start transmitting.
*/
static void at91_start_tx(struct uart_port *port)
static void atmel_start_tx(struct uart_port *port)
{
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
UART_PUT_IER(port, AT91_US_TXRDY);
UART_PUT_IER(port, ATMEL_US_TXRDY);
}
/*
* Stop receiving - port is in process of being closed.
*/
static void at91_stop_rx(struct uart_port *port)
static void atmel_stop_rx(struct uart_port *port)
{
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
UART_PUT_IDR(port, AT91_US_RXRDY);
UART_PUT_IDR(port, ATMEL_US_RXRDY);
}
/*
* Enable modem status interrupts
*/
static void at91_enable_ms(struct uart_port *port)
static void atmel_enable_ms(struct uart_port *port)
{
UART_PUT_IER(port, AT91_US_RIIC | AT91_US_DSRIC | AT91_US_DCDIC | AT91_US_CTSIC);
UART_PUT_IER(port, ATMEL_US_RIIC | ATMEL_US_DSRIC | ATMEL_US_DCDIC | ATMEL_US_CTSIC);
}
/*
* Control the transmission of a break signal
*/
static void at91_break_ctl(struct uart_port *port, int break_state)
static void atmel_break_ctl(struct uart_port *port, int break_state)
{
if (break_state != 0)
UART_PUT_CR(port, AT91_US_STTBRK); /* start break */
UART_PUT_CR(port, ATMEL_US_STTBRK); /* start break */
else
UART_PUT_CR(port, AT91_US_STPBRK); /* stop break */
UART_PUT_CR(port, ATMEL_US_STPBRK); /* stop break */
}
/*
* Characters received (called from interrupt handler)
*/
static void at91_rx_chars(struct uart_port *port, struct pt_regs *regs)
static void atmel_rx_chars(struct uart_port *port, struct pt_regs *regs)
{
struct tty_struct *tty = port->info->tty;
unsigned int status, ch, flg;
status = UART_GET_CSR(port);
while (status & AT91_US_RXRDY) {
while (status & ATMEL_US_RXRDY) {
ch = UART_GET_CHAR(port);
port->icount.rx++;
......@@ -262,35 +262,35 @@ static void at91_rx_chars(struct uart_port *port, struct pt_regs *regs)
* note that the error handling code is
* out of the main execution path
*/
if (unlikely(status & (AT91_US_PARE | AT91_US_FRAME | AT91_US_OVRE | AT91_US_RXBRK))) {
UART_PUT_CR(port, AT91_US_RSTSTA); /* clear error */
if (status & AT91_US_RXBRK) {
status &= ~(AT91_US_PARE | AT91_US_FRAME); /* ignore side-effect */
if (unlikely(status & (ATMEL_US_PARE | ATMEL_US_FRAME | ATMEL_US_OVRE | ATMEL_US_RXBRK))) {
UART_PUT_CR(port, ATMEL_US_RSTSTA); /* clear error */
if (status & ATMEL_US_RXBRK) {
status &= ~(ATMEL_US_PARE | ATMEL_US_FRAME); /* ignore side-effect */
port->icount.brk++;
if (uart_handle_break(port))
goto ignore_char;
}
if (status & AT91_US_PARE)
if (status & ATMEL_US_PARE)
port->icount.parity++;
if (status & AT91_US_FRAME)
if (status & ATMEL_US_FRAME)
port->icount.frame++;
if (status & AT91_US_OVRE)
if (status & ATMEL_US_OVRE)
port->icount.overrun++;
status &= port->read_status_mask;
if (status & AT91_US_RXBRK)
if (status & ATMEL_US_RXBRK)
flg = TTY_BREAK;
else if (status & AT91_US_PARE)
else if (status & ATMEL_US_PARE)
flg = TTY_PARITY;
else if (status & AT91_US_FRAME)
else if (status & ATMEL_US_FRAME)
flg = TTY_FRAME;
}
if (uart_handle_sysrq_char(port, ch, regs))
goto ignore_char;
uart_insert_char(port, status, AT91_US_OVRE, ch, flg);
uart_insert_char(port, status, ATMEL_US_OVRE, ch, flg);
ignore_char:
status = UART_GET_CSR(port);
......@@ -302,7 +302,7 @@ static void at91_rx_chars(struct uart_port *port, struct pt_regs *regs)
/*
* Transmit characters (called from interrupt handler)
*/
static void at91_tx_chars(struct uart_port *port)
static void atmel_tx_chars(struct uart_port *port)
{
struct circ_buf *xmit = &port->info->xmit;
......@@ -313,11 +313,11 @@ static void at91_tx_chars(struct uart_port *port)
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
at91_stop_tx(port);
atmel_stop_tx(port);
return;
}
while (UART_GET_CSR(port) & AT91_US_TXRDY) {
while (UART_GET_CSR(port) & ATMEL_US_TXRDY) {
UART_PUT_CHAR(port, xmit->buf[xmit->tail]);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
port->icount.tx++;
......@@ -329,40 +329,40 @@ static void at91_tx_chars(struct uart_port *port)
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
at91_stop_tx(port);
atmel_stop_tx(port);
}
/*
* Interrupt handler
*/
static irqreturn_t at91_interrupt(int irq, void *dev_id, struct pt_regs *regs)
static irqreturn_t atmel_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct uart_port *port = dev_id;
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
unsigned int status, pending, pass_counter = 0;
status = UART_GET_CSR(port);
pending = status & UART_GET_IMR(port);
while (pending) {
/* Interrupt receive */
if (pending & AT91_US_RXRDY)
at91_rx_chars(port, regs);
if (pending & ATMEL_US_RXRDY)
atmel_rx_chars(port, regs);
// TODO: All reads to CSR will clear these interrupts!
if (pending & AT91_US_RIIC) port->icount.rng++;
if (pending & AT91_US_DSRIC) port->icount.dsr++;
if (pending & AT91_US_DCDIC)
uart_handle_dcd_change(port, !(status & AT91_US_DCD));
if (pending & AT91_US_CTSIC)
uart_handle_cts_change(port, !(status & AT91_US_CTS));
if (pending & (AT91_US_RIIC | AT91_US_DSRIC | AT91_US_DCDIC | AT91_US_CTSIC))
if (pending & ATMEL_US_RIIC) port->icount.rng++;
if (pending & ATMEL_US_DSRIC) port->icount.dsr++;
if (pending & ATMEL_US_DCDIC)
uart_handle_dcd_change(port, !(status & ATMEL_US_DCD));
if (pending & ATMEL_US_CTSIC)
uart_handle_cts_change(port, !(status & ATMEL_US_CTS));
if (pending & (ATMEL_US_RIIC | ATMEL_US_DSRIC | ATMEL_US_DCDIC | ATMEL_US_CTSIC))
wake_up_interruptible(&port->info->delta_msr_wait);
/* Interrupt transmit */
if (pending & AT91_US_TXRDY)
at91_tx_chars(port);
if (pending & ATMEL_US_TXRDY)
atmel_tx_chars(port);
if (pass_counter++ > AT91_ISR_PASS_LIMIT)
if (pass_counter++ > ATMEL_ISR_PASS_LIMIT)
break;
status = UART_GET_CSR(port);
......@@ -374,9 +374,9 @@ static irqreturn_t at91_interrupt(int irq, void *dev_id, struct pt_regs *regs)
/*
* Perform initialization and enable port for reception
*/
static int at91_startup(struct uart_port *port)
static int atmel_startup(struct uart_port *port)
{
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
int retval;
/*
......@@ -389,9 +389,9 @@ static int at91_startup(struct uart_port *port)
/*
* Allocate the IRQ
*/
retval = request_irq(port->irq, at91_interrupt, IRQF_SHARED, "at91_serial", port);
retval = request_irq(port->irq, atmel_interrupt, IRQF_SHARED, "atmel_serial", port);
if (retval) {
printk("at91_serial: at91_startup - Can't get irq\n");
printk("atmel_serial: atmel_startup - Can't get irq\n");
return retval;
}
......@@ -410,10 +410,10 @@ static int at91_startup(struct uart_port *port)
/*
* Finally, enable the serial port
*/
UART_PUT_CR(port, AT91_US_RSTSTA | AT91_US_RSTRX);
UART_PUT_CR(port, AT91_US_TXEN | AT91_US_RXEN); /* enable xmit & rcvr */
UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN); /* enable xmit & rcvr */
UART_PUT_IER(port, AT91_US_RXRDY); /* enable receive only */
UART_PUT_IER(port, ATMEL_US_RXRDY); /* enable receive only */
return 0;
}
......@@ -421,14 +421,14 @@ static int at91_startup(struct uart_port *port)
/*
* Disable the port
*/
static void at91_shutdown(struct uart_port *port)
static void atmel_shutdown(struct uart_port *port)
{
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
/*
* Disable all interrupts, port and break condition.
*/
UART_PUT_CR(port, AT91_US_RSTSTA);
UART_PUT_CR(port, ATMEL_US_RSTSTA);
UART_PUT_IDR(port, -1);
/*
......@@ -447,9 +447,9 @@ static void at91_shutdown(struct uart_port *port)
/*
* Power / Clock management.
*/
static void at91_serial_pm(struct uart_port *port, unsigned int state, unsigned int oldstate)
static void atmel_serial_pm(struct uart_port *port, unsigned int state, unsigned int oldstate)
{
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
switch (state) {
case 0:
......@@ -457,24 +457,24 @@ static void at91_serial_pm(struct uart_port *port, unsigned int state, unsigned
* Enable the peripheral clock for this serial port.
* This is called on uart_open() or a resume event.
*/
clk_enable(at91_port->clk);
clk_enable(atmel_port->clk);
break;
case 3:
/*
* Disable the peripheral clock for this serial port.
* This is called on uart_close() or a suspend event.
*/
clk_disable(at91_port->clk);
clk_disable(atmel_port->clk);
break;
default:
printk(KERN_ERR "at91_serial: unknown pm %d\n", state);
printk(KERN_ERR "atmel_serial: unknown pm %d\n", state);
}
}
/*
* Change the port parameters
*/
static void at91_set_termios(struct uart_port *port, struct termios * termios, struct termios * old)
static void atmel_set_termios(struct uart_port *port, struct termios * termios, struct termios * old)
{
unsigned long flags;
unsigned int mode, imr, quot, baud;
......@@ -483,66 +483,66 @@ static void at91_set_termios(struct uart_port *port, struct termios * termios, s
quot = uart_get_divisor(port, baud);
/* Get current mode register */
mode = UART_GET_MR(port) & ~(AT91_US_CHRL | AT91_US_NBSTOP | AT91_US_PAR);
mode = UART_GET_MR(port) & ~(ATMEL_US_CHRL | ATMEL_US_NBSTOP | ATMEL_US_PAR);
/* byte size */
switch (termios->c_cflag & CSIZE) {
case CS5:
mode |= AT91_US_CHRL_5;
mode |= ATMEL_US_CHRL_5;
break;
case CS6:
mode |= AT91_US_CHRL_6;
mode |= ATMEL_US_CHRL_6;
break;
case CS7:
mode |= AT91_US_CHRL_7;
mode |= ATMEL_US_CHRL_7;
break;
default:
mode |= AT91_US_CHRL_8;
mode |= ATMEL_US_CHRL_8;
break;
}
/* stop bits */
if (termios->c_cflag & CSTOPB)
mode |= AT91_US_NBSTOP_2;
mode |= ATMEL_US_NBSTOP_2;
/* parity */
if (termios->c_cflag & PARENB) {
if (termios->c_cflag & CMSPAR) { /* Mark or Space parity */
if (termios->c_cflag & PARODD)
mode |= AT91_US_PAR_MARK;
mode |= ATMEL_US_PAR_MARK;
else
mode |= AT91_US_PAR_SPACE;
mode |= ATMEL_US_PAR_SPACE;
}
else if (termios->c_cflag & PARODD)
mode |= AT91_US_PAR_ODD;
mode |= ATMEL_US_PAR_ODD;
else
mode |= AT91_US_PAR_EVEN;
mode |= ATMEL_US_PAR_EVEN;
}
else
mode |= AT91_US_PAR_NONE;
mode |= ATMEL_US_PAR_NONE;
spin_lock_irqsave(&port->lock, flags);
port->read_status_mask = AT91_US_OVRE;
port->read_status_mask = ATMEL_US_OVRE;
if (termios->c_iflag & INPCK)
port->read_status_mask |= (AT91_US_FRAME | AT91_US_PARE);
port->read_status_mask |= (ATMEL_US_FRAME | ATMEL_US_PARE);
if (termios->c_iflag & (BRKINT | PARMRK))
port->read_status_mask |= AT91_US_RXBRK;
port->read_status_mask |= ATMEL_US_RXBRK;
/*
* Characters to ignore
*/
port->ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
port->ignore_status_mask |= (AT91_US_FRAME | AT91_US_PARE);
port->ignore_status_mask |= (ATMEL_US_FRAME | ATMEL_US_PARE);
if (termios->c_iflag & IGNBRK) {
port->ignore_status_mask |= AT91_US_RXBRK;
port->ignore_status_mask |= ATMEL_US_RXBRK;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
port->ignore_status_mask |= AT91_US_OVRE;
port->ignore_status_mask |= ATMEL_US_OVRE;
}
// TODO: Ignore all characters if CREAD is set.
......@@ -553,18 +553,18 @@ static void at91_set_termios(struct uart_port *port, struct termios * termios, s
/* disable interrupts and drain transmitter */
imr = UART_GET_IMR(port); /* get interrupt mask */
UART_PUT_IDR(port, -1); /* disable all interrupts */
while (!(UART_GET_CSR(port) & AT91_US_TXEMPTY)) { barrier(); }
while (!(UART_GET_CSR(port) & ATMEL_US_TXEMPTY)) { barrier(); }
/* disable receiver and transmitter */
UART_PUT_CR(port, AT91_US_TXDIS | AT91_US_RXDIS);
UART_PUT_CR(port, ATMEL_US_TXDIS | ATMEL_US_RXDIS);
/* set the parity, stop bits and data size */
UART_PUT_MR(port, mode);
/* set the baud rate */
UART_PUT_BRGR(port, quot);
UART_PUT_CR(port, AT91_US_RSTSTA | AT91_US_RSTRX);
UART_PUT_CR(port, AT91_US_TXEN | AT91_US_RXEN);
UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN);
/* restore interrupts */
UART_PUT_IER(port, imr);
......@@ -579,15 +579,15 @@ static void at91_set_termios(struct uart_port *port, struct termios * termios, s
/*
* Return string describing the specified port
*/
static const char *at91_type(struct uart_port *port)
static const char *atmel_type(struct uart_port *port)
{
return (port->type == PORT_AT91) ? "AT91_SERIAL" : NULL;
return (port->type == PORT_AT91) ? "ATMEL_SERIAL" : NULL;
}
/*
* Release the memory region(s) being used by 'port'.
*/
static void at91_release_port(struct uart_port *port)
static void atmel_release_port(struct uart_port *port)
{
struct platform_device *pdev = to_platform_device(port->dev);
int size = pdev->resource[0].end - pdev->resource[0].start + 1;
......@@ -603,12 +603,12 @@ static void at91_release_port(struct uart_port *port)
/*
* Request the memory region(s) being used by 'port'.
*/
static int at91_request_port(struct uart_port *port)
static int atmel_request_port(struct uart_port *port)
{
struct platform_device *pdev = to_platform_device(port->dev);
int size = pdev->resource[0].end - pdev->resource[0].start + 1;
if (!request_mem_region(port->mapbase, size, "at91_serial"))
if (!request_mem_region(port->mapbase, size, "atmel_serial"))
return -EBUSY;
if (port->flags & UPF_IOREMAP) {
......@@ -625,18 +625,18 @@ static int at91_request_port(struct uart_port *port)
/*
* Configure/autoconfigure the port.
*/
static void at91_config_port(struct uart_port *port, int flags)
static void atmel_config_port(struct uart_port *port, int flags)
{
if (flags & UART_CONFIG_TYPE) {
port->type = PORT_AT91;
at91_request_port(port);
atmel_request_port(port);
}
}
/*
* Verify the new serial_struct (for TIOCSSERIAL).
*/
static int at91_verify_port(struct uart_port *port, struct serial_struct *ser)
static int atmel_verify_port(struct uart_port *port, struct serial_struct *ser)
{
int ret = 0;
if (ser->type != PORT_UNKNOWN && ser->type != PORT_AT91)
......@@ -656,37 +656,37 @@ static int at91_verify_port(struct uart_port *port, struct serial_struct *ser)
return ret;
}
static struct uart_ops at91_pops = {
.tx_empty = at91_tx_empty,
.set_mctrl = at91_set_mctrl,
.get_mctrl = at91_get_mctrl,
.stop_tx = at91_stop_tx,
.start_tx = at91_start_tx,
.stop_rx = at91_stop_rx,
.enable_ms = at91_enable_ms,
.break_ctl = at91_break_ctl,
.startup = at91_startup,
.shutdown = at91_shutdown,
.set_termios = at91_set_termios,
.type = at91_type,
.release_port = at91_release_port,
.request_port = at91_request_port,
.config_port = at91_config_port,
.verify_port = at91_verify_port,
.pm = at91_serial_pm,
static struct uart_ops atmel_pops = {
.tx_empty = atmel_tx_empty,
.set_mctrl = atmel_set_mctrl,
.get_mctrl = atmel_get_mctrl,
.stop_tx = atmel_stop_tx,
.start_tx = atmel_start_tx,
.stop_rx = atmel_stop_rx,
.enable_ms = atmel_enable_ms,
.break_ctl = atmel_break_ctl,
.startup = atmel_startup,
.shutdown = atmel_shutdown,
.set_termios = atmel_set_termios,
.type = atmel_type,
.release_port = atmel_release_port,
.request_port = atmel_request_port,
.config_port = atmel_config_port,
.verify_port = atmel_verify_port,
.pm = atmel_serial_pm,
};
/*
* Configure the port from the platform device resource info.
*/
static void __devinit at91_init_port(struct at91_uart_port *at91_port, struct platform_device *pdev)
static void __devinit atmel_init_port(struct atmel_uart_port *atmel_port, struct platform_device *pdev)
{
struct uart_port *port = &at91_port->uart;
struct uart_port *port = &atmel_port->uart;
struct atmel_uart_data *data = pdev->dev.platform_data;
port->iotype = UPIO_MEM;
port->flags = UPF_BOOT_AUTOCONF;
port->ops = &at91_pops;
port->ops = &atmel_pops;
port->fifosize = 1;
port->line = pdev->id;
port->dev = &pdev->dev;
......@@ -701,10 +701,10 @@ static void __devinit at91_init_port(struct at91_uart_port *at91_port, struct pl
port->membase = NULL;
}
if (!at91_port->clk) { /* for console, the clock could already be configured */
at91_port->clk = clk_get(&pdev->dev, "usart");
clk_enable(at91_port->clk);
port->uartclk = clk_get_rate(at91_port->clk);
if (!atmel_port->clk) { /* for console, the clock could already be configured */
atmel_port->clk = clk_get(&pdev->dev, "usart");
clk_enable(atmel_port->clk);
port->uartclk = clk_get_rate(atmel_port->clk);
}
}
......@@ -714,22 +714,22 @@ static void __devinit at91_init_port(struct at91_uart_port *at91_port, struct pl
void __init at91_register_uart_fns(struct at91_port_fns *fns)
{
if (fns->enable_ms)
at91_pops.enable_ms = fns->enable_ms;
atmel_pops.enable_ms = fns->enable_ms;
if (fns->get_mctrl)
at91_pops.get_mctrl = fns->get_mctrl;
atmel_pops.get_mctrl = fns->get_mctrl;
if (fns->set_mctrl)
at91_pops.set_mctrl = fns->set_mctrl;
atmel_pops.set_mctrl = fns->set_mctrl;
at91_open = fns->open;
at91_close = fns->close;
at91_pops.pm = fns->pm;
at91_pops.set_wake = fns->set_wake;
atmel_pops.pm = fns->pm;
atmel_pops.set_wake = fns->set_wake;
}
#ifdef CONFIG_SERIAL_ATMEL_CONSOLE
static void at91_console_putchar(struct uart_port *port, int ch)
static void atmel_console_putchar(struct uart_port *port, int ch)
{
while (!(UART_GET_CSR(port) & AT91_US_TXRDY))
while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY))
barrier();
UART_PUT_CHAR(port, ch);
}
......@@ -737,18 +737,18 @@ static void at91_console_putchar(struct uart_port *port, int ch)
/*
* Interrupts are disabled on entering
*/
static void at91_console_write(struct console *co, const char *s, u_int count)
static void atmel_console_write(struct console *co, const char *s, u_int count)
{
struct uart_port *port = &at91_ports[co->index].uart;
struct uart_port *port = &atmel_ports[co->index].uart;
unsigned int status, imr;
/*
* First, save IMR and then disable interrupts
*/
imr = UART_GET_IMR(port); /* get interrupt mask */
UART_PUT_IDR(port, AT91_US_RXRDY | AT91_US_TXRDY);
UART_PUT_IDR(port, ATMEL_US_RXRDY | ATMEL_US_TXRDY);
uart_console_write(port, s, count, at91_console_putchar);
uart_console_write(port, s, count, atmel_console_putchar);
/*
* Finally, wait for transmitter to become empty
......@@ -756,7 +756,7 @@ static void at91_console_write(struct console *co, const char *s, u_int count)
*/
do {
status = UART_GET_CSR(port);
} while (!(status & AT91_US_TXRDY));
} while (!(status & ATMEL_US_TXRDY));
UART_PUT_IER(port, imr); /* set interrupts back the way they were */
}
......@@ -764,37 +764,37 @@ static void at91_console_write(struct console *co, const char *s, u_int count)
* If the port was already initialised (eg, by a boot loader), try to determine
* the current setup.
*/
static void __init at91_console_get_options(struct uart_port *port, int *baud, int *parity, int *bits)
static void __init atmel_console_get_options(struct uart_port *port, int *baud, int *parity, int *bits)
{
unsigned int mr, quot;
// TODO: CR is a write-only register
// unsigned int cr;
//
// cr = UART_GET_CR(port) & (AT91_US_RXEN | AT91_US_TXEN);
// if (cr == (AT91_US_RXEN | AT91_US_TXEN)) {
// cr = UART_GET_CR(port) & (ATMEL_US_RXEN | ATMEL_US_TXEN);
// if (cr == (ATMEL_US_RXEN | ATMEL_US_TXEN)) {
// /* ok, the port was enabled */
// }
mr = UART_GET_MR(port) & AT91_US_CHRL;
if (mr == AT91_US_CHRL_8)
mr = UART_GET_MR(port) & ATMEL_US_CHRL;
if (mr == ATMEL_US_CHRL_8)
*bits = 8;
else
*bits = 7;
mr = UART_GET_MR(port) & AT91_US_PAR;
if (mr == AT91_US_PAR_EVEN)
mr = UART_GET_MR(port) & ATMEL_US_PAR;
if (mr == ATMEL_US_PAR_EVEN)
*parity = 'e';
else if (mr == AT91_US_PAR_ODD)
else if (mr == ATMEL_US_PAR_ODD)
*parity = 'o';
quot = UART_GET_BRGR(port);
*baud = port->uartclk / (16 * (quot));
}
static int __init at91_console_setup(struct console *co, char *options)
static int __init atmel_console_setup(struct console *co, char *options)
{
struct uart_port *port = &at91_ports[co->index].uart;
struct uart_port *port = &atmel_ports[co->index].uart;
int baud = 115200;
int bits = 8;
int parity = 'n';
......@@ -804,115 +804,115 @@ static int __init at91_console_setup(struct console *co, char *options)
return -ENODEV;
UART_PUT_IDR(port, -1); /* disable interrupts */
UART_PUT_CR(port, AT91_US_RSTSTA | AT91_US_RSTRX);
UART_PUT_CR(port, AT91_US_TXEN | AT91_US_RXEN);
UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
else
at91_console_get_options(port, &baud, &parity, &bits);
atmel_console_get_options(port, &baud, &parity, &bits);
return uart_set_options(port, co, baud, parity, bits, flow);
}
static struct uart_driver at91_uart;
static struct uart_driver atmel_uart;
static struct console at91_console = {
.name = AT91_DEVICENAME,
.write = at91_console_write,
static struct console atmel_console = {
.name = ATMEL_DEVICENAME,
.write = atmel_console_write,
.device = uart_console_device,
.setup = at91_console_setup,
.setup = atmel_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
.data = &at91_uart,
.data = &atmel_uart,
};
#define AT91_CONSOLE_DEVICE &at91_console
#define ATMEL_CONSOLE_DEVICE &atmel_console
/*
* Early console initialization (before VM subsystem initialized).
*/
static int __init at91_console_init(void)
static int __init atmel_console_init(void)
{
if (atmel_default_console_device) {
add_preferred_console(AT91_DEVICENAME, atmel_default_console_device->id, NULL);
at91_init_port(&(at91_ports[atmel_default_console_device->id]), atmel_default_console_device);
register_console(&at91_console);
add_preferred_console(ATMEL_DEVICENAME, atmel_default_console_device->id, NULL);
atmel_init_port(&(atmel_ports[atmel_default_console_device->id]), atmel_default_console_device);
register_console(&atmel_console);
}
return 0;
}
console_initcall(at91_console_init);
console_initcall(atmel_console_init);
/*
* Late console initialization.
*/
static int __init at91_late_console_init(void)
static int __init atmel_late_console_init(void)
{
if (atmel_default_console_device && !(at91_console.flags & CON_ENABLED))
register_console(&at91_console);
if (atmel_default_console_device && !(atmel_console.flags & CON_ENABLED))
register_console(&atmel_console);
return 0;
}
core_initcall(at91_late_console_init);
core_initcall(atmel_late_console_init);
#else
#define AT91_CONSOLE_DEVICE NULL
#define ATMEL_CONSOLE_DEVICE NULL
#endif
static struct uart_driver at91_uart = {
static struct uart_driver atmel_uart = {
.owner = THIS_MODULE,
.driver_name = "at91_serial",
.dev_name = AT91_DEVICENAME,
.major = SERIAL_AT91_MAJOR,
.driver_name = "atmel_serial",
.dev_name = ATMEL_DEVICENAME,
.major = SERIAL_ATMEL_MAJOR,
.minor = MINOR_START,
.nr = ATMEL_MAX_UART,
.cons = AT91_CONSOLE_DEVICE,
.cons = ATMEL_CONSOLE_DEVICE,
};
#ifdef CONFIG_PM
static int at91_serial_suspend(struct platform_device *pdev, pm_message_t state)
static int atmel_serial_suspend(struct platform_device *pdev, pm_message_t state)
{
struct uart_port *port = platform_get_drvdata(pdev);
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
if (device_may_wakeup(&pdev->dev) && !at91_suspend_entering_slow_clock())
enable_irq_wake(port->irq);
else {
disable_irq_wake(port->irq);
uart_suspend_port(&at91_uart, port);
at91_port->suspended = 1;
uart_suspend_port(&atmel_uart, port);
atmel_port->suspended = 1;
}
return 0;
}
static int at91_serial_resume(struct platform_device *pdev)
static int atmel_serial_resume(struct platform_device *pdev)
{
struct uart_port *port = platform_get_drvdata(pdev);
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
if (at91_port->suspended) {
uart_resume_port(&at91_uart, port);
at91_port->suspended = 0;
if (atmel_port->suspended) {
uart_resume_port(&atmel_uart, port);
atmel_port->suspended = 0;
}
return 0;
}
#else
#define at91_serial_suspend NULL
#define at91_serial_resume NULL
#define atmel_serial_suspend NULL
#define atmel_serial_resume NULL
#endif
static int __devinit at91_serial_probe(struct platform_device *pdev)
static int __devinit atmel_serial_probe(struct platform_device *pdev)
{
struct at91_uart_port *port;
struct atmel_uart_port *port;
int ret;
port = &at91_ports[pdev->id];
at91_init_port(port, pdev);
port = &atmel_ports[pdev->id];
atmel_init_port(port, pdev);
ret = uart_add_one_port(&at91_uart, &port->uart);
ret = uart_add_one_port(&atmel_uart, &port->uart);
if (!ret) {
device_init_wakeup(&pdev->dev, 1);
platform_set_drvdata(pdev, port);
......@@ -921,61 +921,61 @@ static int __devinit at91_serial_probe(struct platform_device *pdev)
return ret;
}
static int __devexit at91_serial_remove(struct platform_device *pdev)
static int __devexit atmel_serial_remove(struct platform_device *pdev)
{
struct uart_port *port = platform_get_drvdata(pdev);
struct at91_uart_port *at91_port = (struct at91_uart_port *) port;
struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
int ret = 0;
clk_disable(at91_port->clk);
clk_put(at91_port->clk);
clk_disable(atmel_port->clk);
clk_put(atmel_port->clk);
device_init_wakeup(&pdev->dev, 0);
platform_set_drvdata(pdev, NULL);
if (port) {
ret = uart_remove_one_port(&at91_uart, port);
ret = uart_remove_one_port(&atmel_uart, port);
kfree(port);
}
return ret;
}
static struct platform_driver at91_serial_driver = {
.probe = at91_serial_probe,
.remove = __devexit_p(at91_serial_remove),
.suspend = at91_serial_suspend,
.resume = at91_serial_resume,
static struct platform_driver atmel_serial_driver = {
.probe = atmel_serial_probe,
.remove = __devexit_p(atmel_serial_remove),
.suspend = atmel_serial_suspend,
.resume = atmel_serial_resume,
.driver = {
.name = "atmel_usart",
.owner = THIS_MODULE,
},
};
static int __init at91_serial_init(void)
static int __init atmel_serial_init(void)
{
int ret;
ret = uart_register_driver(&at91_uart);
ret = uart_register_driver(&atmel_uart);
if (ret)
return ret;
ret = platform_driver_register(&at91_serial_driver);
ret = platform_driver_register(&atmel_serial_driver);
if (ret)
uart_unregister_driver(&at91_uart);
uart_unregister_driver(&atmel_uart);
return ret;
}
static void __exit at91_serial_exit(void)
static void __exit atmel_serial_exit(void)
{
platform_driver_unregister(&at91_serial_driver);
uart_unregister_driver(&at91_uart);
platform_driver_unregister(&atmel_serial_driver);
uart_unregister_driver(&atmel_uart);
}
module_init(at91_serial_init);
module_exit(at91_serial_exit);
module_init(atmel_serial_init);
module_exit(atmel_serial_exit);
MODULE_AUTHOR("Rick Bronson");
MODULE_DESCRIPTION("AT91 generic serial port driver");
MODULE_DESCRIPTION("Atmel AT91 / AT32 serial port driver");
MODULE_LICENSE("GPL");
......@@ -13,111 +13,111 @@
* (at your option) any later version.
*/
#ifndef AT91RM9200_USART_H
#define AT91RM9200_USART_H
#ifndef ATMEL_SERIAL_H
#define ATMEL_SERIAL_H
#define AT91_US_CR 0x00 /* Control Register */
#define AT91_US_RSTRX (1 << 2) /* Reset Receiver */
#define AT91_US_RSTTX (1 << 3) /* Reset Transmitter */
#define AT91_US_RXEN (1 << 4) /* Receiver Enable */
#define AT91_US_RXDIS (1 << 5) /* Receiver Disable */
#define AT91_US_TXEN (1 << 6) /* Transmitter Enable */
#define AT91_US_TXDIS (1 << 7) /* Transmitter Disable */
#define AT91_US_RSTSTA (1 << 8) /* Reset Status Bits */
#define AT91_US_STTBRK (1 << 9) /* Start Break */
#define AT91_US_STPBRK (1 << 10) /* Stop Break */
#define AT91_US_STTTO (1 << 11) /* Start Time-out */
#define AT91_US_SENDA (1 << 12) /* Send Address */
#define AT91_US_RSTIT (1 << 13) /* Reset Iterations */
#define AT91_US_RSTNACK (1 << 14) /* Reset Non Acknowledge */
#define AT91_US_RETTO (1 << 15) /* Rearm Time-out */
#define AT91_US_DTREN (1 << 16) /* Data Terminal Ready Enable */
#define AT91_US_DTRDIS (1 << 17) /* Data Terminal Ready Disable */
#define AT91_US_RTSEN (1 << 18) /* Request To Send Enable */
#define AT91_US_RTSDIS (1 << 19) /* Request To Send Disable */
#define ATMEL_US_CR 0x00 /* Control Register */
#define ATMEL_US_RSTRX (1 << 2) /* Reset Receiver */
#define ATMEL_US_RSTTX (1 << 3) /* Reset Transmitter */
#define ATMEL_US_RXEN (1 << 4) /* Receiver Enable */
#define ATMEL_US_RXDIS (1 << 5) /* Receiver Disable */
#define ATMEL_US_TXEN (1 << 6) /* Transmitter Enable */
#define ATMEL_US_TXDIS (1 << 7) /* Transmitter Disable */
#define ATMEL_US_RSTSTA (1 << 8) /* Reset Status Bits */
#define ATMEL_US_STTBRK (1 << 9) /* Start Break */
#define ATMEL_US_STPBRK (1 << 10) /* Stop Break */
#define ATMEL_US_STTTO (1 << 11) /* Start Time-out */
#define ATMEL_US_SENDA (1 << 12) /* Send Address */
#define ATMEL_US_RSTIT (1 << 13) /* Reset Iterations */
#define ATMEL_US_RSTNACK (1 << 14) /* Reset Non Acknowledge */
#define ATMEL_US_RETTO (1 << 15) /* Rearm Time-out */
#define ATMEL_US_DTREN (1 << 16) /* Data Terminal Ready Enable */
#define ATMEL_US_DTRDIS (1 << 17) /* Data Terminal Ready Disable */
#define ATMEL_US_RTSEN (1 << 18) /* Request To Send Enable */
#define ATMEL_US_RTSDIS (1 << 19) /* Request To Send Disable */
#define AT91_US_MR 0x04 /* Mode Register */
#define AT91_US_USMODE (0xf << 0) /* Mode of the USART */
#define AT91_US_USMODE_NORMAL 0
#define AT91_US_USMODE_RS485 1
#define AT91_US_USMODE_HWHS 2
#define AT91_US_USMODE_MODEM 3
#define AT91_US_USMODE_ISO7816_T0 4
#define AT91_US_USMODE_ISO7816_T1 6
#define AT91_US_USMODE_IRDA 8
#define AT91_US_USCLKS (3 << 4) /* Clock Selection */
#define AT91_US_CHRL (3 << 6) /* Character Length */
#define AT91_US_CHRL_5 (0 << 6)
#define AT91_US_CHRL_6 (1 << 6)
#define AT91_US_CHRL_7 (2 << 6)
#define AT91_US_CHRL_8 (3 << 6)
#define AT91_US_SYNC (1 << 8) /* Synchronous Mode Select */
#define AT91_US_PAR (7 << 9) /* Parity Type */
#define AT91_US_PAR_EVEN (0 << 9)
#define AT91_US_PAR_ODD (1 << 9)
#define AT91_US_PAR_SPACE (2 << 9)
#define AT91_US_PAR_MARK (3 << 9)
#define AT91_US_PAR_NONE (4 << 9)
#define AT91_US_PAR_MULTI_DROP (6 << 9)
#define AT91_US_NBSTOP (3 << 12) /* Number of Stop Bits */
#define AT91_US_NBSTOP_1 (0 << 12)
#define AT91_US_NBSTOP_1_5 (1 << 12)
#define AT91_US_NBSTOP_2 (2 << 12)
#define AT91_US_CHMODE (3 << 14) /* Channel Mode */
#define AT91_US_CHMODE_NORMAL (0 << 14)
#define AT91_US_CHMODE_ECHO (1 << 14)
#define AT91_US_CHMODE_LOC_LOOP (2 << 14)
#define AT91_US_CHMODE_REM_LOOP (3 << 14)
#define AT91_US_MSBF (1 << 16) /* Bit Order */
#define AT91_US_MODE9 (1 << 17) /* 9-bit Character Length */
#define AT91_US_CLKO (1 << 18) /* Clock Output Select */
#define AT91_US_OVER (1 << 19) /* Oversampling Mode */
#define AT91_US_INACK (1 << 20) /* Inhibit Non Acknowledge */
#define AT91_US_DSNACK (1 << 21) /* Disable Successive NACK */
#define AT91_US_MAX_ITER (7 << 24) /* Max Iterations */
#define AT91_US_FILTER (1 << 28) /* Infrared Receive Line Filter */
#define ATMEL_US_MR 0x04 /* Mode Register */
#define ATMEL_US_USMODE (0xf << 0) /* Mode of the USART */
#define ATMEL_US_USMODE_NORMAL 0
#define ATMEL_US_USMODE_RS485 1
#define ATMEL_US_USMODE_HWHS 2
#define ATMEL_US_USMODE_MODEM 3
#define ATMEL_US_USMODE_ISO7816_T0 4
#define ATMEL_US_USMODE_ISO7816_T1 6
#define ATMEL_US_USMODE_IRDA 8
#define ATMEL_US_USCLKS (3 << 4) /* Clock Selection */
#define ATMEL_US_CHRL (3 << 6) /* Character Length */
#define ATMEL_US_CHRL_5 (0 << 6)
#define ATMEL_US_CHRL_6 (1 << 6)
#define ATMEL_US_CHRL_7 (2 << 6)
#define ATMEL_US_CHRL_8 (3 << 6)
#define ATMEL_US_SYNC (1 << 8) /* Synchronous Mode Select */
#define ATMEL_US_PAR (7 << 9) /* Parity Type */
#define ATMEL_US_PAR_EVEN (0 << 9)
#define ATMEL_US_PAR_ODD (1 << 9)
#define ATMEL_US_PAR_SPACE (2 << 9)
#define ATMEL_US_PAR_MARK (3 << 9)
#define ATMEL_US_PAR_NONE (4 << 9)
#define ATMEL_US_PAR_MULTI_DROP (6 << 9)
#define ATMEL_US_NBSTOP (3 << 12) /* Number of Stop Bits */
#define ATMEL_US_NBSTOP_1 (0 << 12)
#define ATMEL_US_NBSTOP_1_5 (1 << 12)
#define ATMEL_US_NBSTOP_2 (2 << 12)
#define ATMEL_US_CHMODE (3 << 14) /* Channel Mode */
#define ATMEL_US_CHMODE_NORMAL (0 << 14)
#define ATMEL_US_CHMODE_ECHO (1 << 14)
#define ATMEL_US_CHMODE_LOC_LOOP (2 << 14)
#define ATMEL_US_CHMODE_REM_LOOP (3 << 14)
#define ATMEL_US_MSBF (1 << 16) /* Bit Order */
#define ATMEL_US_MODE9 (1 << 17) /* 9-bit Character Length */
#define ATMEL_US_CLKO (1 << 18) /* Clock Output Select */
#define ATMEL_US_OVER (1 << 19) /* Oversampling Mode */
#define ATMEL_US_INACK (1 << 20) /* Inhibit Non Acknowledge */
#define ATMEL_US_DSNACK (1 << 21) /* Disable Successive NACK */
#define ATMEL_US_MAX_ITER (7 << 24) /* Max Iterations */
#define ATMEL_US_FILTER (1 << 28) /* Infrared Receive Line Filter */
#define AT91_US_IER 0x08 /* Interrupt Enable Register */
#define AT91_US_RXRDY (1 << 0) /* Receiver Ready */
#define AT91_US_TXRDY (1 << 1) /* Transmitter Ready */
#define AT91_US_RXBRK (1 << 2) /* Break Received / End of Break */
#define AT91_US_ENDRX (1 << 3) /* End of Receiver Transfer */
#define AT91_US_ENDTX (1 << 4) /* End of Transmitter Transfer */
#define AT91_US_OVRE (1 << 5) /* Overrun Error */
#define AT91_US_FRAME (1 << 6) /* Framing Error */
#define AT91_US_PARE (1 << 7) /* Parity Error */
#define AT91_US_TIMEOUT (1 << 8) /* Receiver Time-out */
#define AT91_US_TXEMPTY (1 << 9) /* Transmitter Empty */
#define AT91_US_ITERATION (1 << 10) /* Max number of Repetitions Reached */
#define AT91_US_TXBUFE (1 << 11) /* Transmission Buffer Empty */
#define AT91_US_RXBUFF (1 << 12) /* Reception Buffer Full */
#define AT91_US_NACK (1 << 13) /* Non Acknowledge */
#define AT91_US_RIIC (1 << 16) /* Ring Indicator Input Change */
#define AT91_US_DSRIC (1 << 17) /* Data Set Ready Input Change */
#define AT91_US_DCDIC (1 << 18) /* Data Carrier Detect Input Change */
#define AT91_US_CTSIC (1 << 19) /* Clear to Send Input Change */
#define AT91_US_RI (1 << 20) /* RI */
#define AT91_US_DSR (1 << 21) /* DSR */
#define AT91_US_DCD (1 << 22) /* DCD */
#define AT91_US_CTS (1 << 23) /* CTS */
#define ATMEL_US_IER 0x08 /* Interrupt Enable Register */
#define ATMEL_US_RXRDY (1 << 0) /* Receiver Ready */
#define ATMEL_US_TXRDY (1 << 1) /* Transmitter Ready */
#define ATMEL_US_RXBRK (1 << 2) /* Break Received / End of Break */
#define ATMEL_US_ENDRX (1 << 3) /* End of Receiver Transfer */
#define ATMEL_US_ENDTX (1 << 4) /* End of Transmitter Transfer */
#define ATMEL_US_OVRE (1 << 5) /* Overrun Error */
#define ATMEL_US_FRAME (1 << 6) /* Framing Error */
#define ATMEL_US_PARE (1 << 7) /* Parity Error */
#define ATMEL_US_TIMEOUT (1 << 8) /* Receiver Time-out */
#define ATMEL_US_TXEMPTY (1 << 9) /* Transmitter Empty */
#define ATMEL_US_ITERATION (1 << 10) /* Max number of Repetitions Reached */
#define ATMEL_US_TXBUFE (1 << 11) /* Transmission Buffer Empty */
#define ATMEL_US_RXBUFF (1 << 12) /* Reception Buffer Full */
#define ATMEL_US_NACK (1 << 13) /* Non Acknowledge */
#define ATMEL_US_RIIC (1 << 16) /* Ring Indicator Input Change */
#define ATMEL_US_DSRIC (1 << 17) /* Data Set Ready Input Change */
#define ATMEL_US_DCDIC (1 << 18) /* Data Carrier Detect Input Change */
#define ATMEL_US_CTSIC (1 << 19) /* Clear to Send Input Change */
#define ATMEL_US_RI (1 << 20) /* RI */
#define ATMEL_US_DSR (1 << 21) /* DSR */
#define ATMEL_US_DCD (1 << 22) /* DCD */
#define ATMEL_US_CTS (1 << 23) /* CTS */
#define AT91_US_IDR 0x0c /* Interrupt Disable Register */
#define AT91_US_IMR 0x10 /* Interrupt Mask Register */
#define AT91_US_CSR 0x14 /* Channel Status Register */
#define AT91_US_RHR 0x18 /* Receiver Holding Register */
#define AT91_US_THR 0x1c /* Transmitter Holding Register */
#define ATMEL_US_IDR 0x0c /* Interrupt Disable Register */
#define ATMEL_US_IMR 0x10 /* Interrupt Mask Register */
#define ATMEL_US_CSR 0x14 /* Channel Status Register */
#define ATMEL_US_RHR 0x18 /* Receiver Holding Register */
#define ATMEL_US_THR 0x1c /* Transmitter Holding Register */
#define AT91_US_BRGR 0x20 /* Baud Rate Generator Register */
#define AT91_US_CD (0xffff << 0) /* Clock Divider */
#define ATMEL_US_BRGR 0x20 /* Baud Rate Generator Register */
#define ATMEL_US_CD (0xffff << 0) /* Clock Divider */
#define AT91_US_RTOR 0x24 /* Receiver Time-out Register */
#define AT91_US_TO (0xffff << 0) /* Time-out Value */
#define ATMEL_US_RTOR 0x24 /* Receiver Time-out Register */
#define ATMEL_US_TO (0xffff << 0) /* Time-out Value */
#define AT91_US_TTGR 0x28 /* Transmitter Timeguard Register */
#define AT91_US_TG (0xff << 0) /* Timeguard Value */
#define ATMEL_US_TTGR 0x28 /* Transmitter Timeguard Register */
#define ATMEL_US_TG (0xff << 0) /* Timeguard Value */
#define AT91_US_FIDI 0x40 /* FI DI Ratio Register */
#define AT91_US_NER 0x44 /* Number of Errors Register */
#define AT91_US_IF 0x4c /* IrDA Filter Register */
#define ATMEL_US_FIDI 0x40 /* FI DI Ratio Register */
#define ATMEL_US_NER 0x44 /* Number of Errors Register */
#define ATMEL_US_IF 0x4c /* IrDA Filter Register */
#endif
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