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Rename common ns16550 constants with UART_ prefix to prevent conflicts

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Fix problems introduced in commit
7b5611cdd1 [inka4x0: Add hardware
diagnosis functions for inka4x0] which redefined MSR_RI which is
already used on PowerPC systems.

Also eliminate redundant definitions in ps2mult.h.  More cleanup will
be needed for other redundant occurrences though.

Signed-off-by: Detlev Zundel <dzu@denx.de>
This commit is contained in:
Detlev Zundel 2009-04-03 11:53:01 +02:00 committed by Wolfgang Denk
parent 74de7aefd7
commit 200779e3e2
6 changed files with 135 additions and 178 deletions
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20
board/inka4x0/inkadiag.c
View file

@ -280,48 +280,48 @@ static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc,
if ((num >= 0) && (num <= 7)) { if ((num >= 0) && (num <= 7)) {
if (mode & 1) { if (mode & 1) {
/* turn on 'loopback' mode */ /* turn on 'loopback' mode */
out_8(&uart->mcr, MCR_LOOP); out_8(&uart->mcr, UART_MCR_LOOP);
} else { } else {
/* /*
* establish the UART's operational parameters * establish the UART's operational parameters
* set DLAB=1, so rbr accesses DLL * set DLAB=1, so rbr accesses DLL
*/ */
out_8(&uart->lcr, LCR_DLAB); out_8(&uart->lcr, UART_LCR_DLAB);
/* set baudrate */ /* set baudrate */
out_8(&uart->rbr, combrd); out_8(&uart->rbr, combrd);
/* set data-format: 8-N-1 */ /* set data-format: 8-N-1 */
out_8(&uart->lcr, LCR_WLS_8); out_8(&uart->lcr, UART_LCR_WLS_8);
} }
if (mode & 2) { if (mode & 2) {
/* set request to send */ /* set request to send */
out_8(&uart->mcr, MCR_RTS); out_8(&uart->mcr, UART_MCR_RTS);
udelay(10); udelay(10);
/* check clear to send */ /* check clear to send */
if ((in_8(&uart->msr) & MSR_CTS) == 0x00) if ((in_8(&uart->msr) & UART_MSR_CTS) == 0x00)
return -1; return -1;
} }
if (mode & 4) { if (mode & 4) {
/* set data terminal ready */ /* set data terminal ready */
out_8(&uart->mcr, MCR_DTR); out_8(&uart->mcr, UART_MCR_DTR);
udelay(10); udelay(10);
/* check data set ready and carrier detect */ /* check data set ready and carrier detect */
if ((in_8(&uart->msr) & (MSR_DSR | MSR_DCD)) if ((in_8(&uart->msr) & (UART_MSR_DSR | UART_MSR_DCD))
!= (MSR_DSR | MSR_DCD)) != (UART_MSR_DSR | UART_MSR_DCD))
return -1; return -1;
} }
/* write each message-character, read it back, and display it */ /* write each message-character, read it back, and display it */
for (i = 0, len = strlen(argv[3]); i < len; ++i) { for (i = 0, len = strlen(argv[3]); i < len; ++i) {
j = 0; j = 0;
while ((in_8(&uart->lsr) & LSR_THRE) == 0x00) { while ((in_8(&uart->lsr) & UART_LSR_THRE) == 0x00) {
if (j++ > CONFIG_SYS_HZ) if (j++ > CONFIG_SYS_HZ)
break; break;
udelay(10); udelay(10);
} }
out_8(&uart->rbr, argv[3][i]); out_8(&uart->rbr, argv[3][i]);
j = 0; j = 0;
while ((in_8(&uart->lsr) & LSR_DR) == 0x00) { while ((in_8(&uart->lsr) & UART_LSR_DR) == 0x00) {
if (j++ > CONFIG_SYS_HZ) if (j++ > CONFIG_SYS_HZ)
break; break;
udelay(10); udelay(10);

6
board/linkstation/avr.c
View file

@ -90,12 +90,12 @@ void init_AVR_DUART (void)
*/ */
AVR_port->lcr = 0x00; AVR_port->lcr = 0x00;
AVR_port->ier = 0x00; AVR_port->ier = 0x00;
AVR_port->lcr = LCR_BKSE; AVR_port->lcr = UART_LCR_BKSE;
AVR_port->dll = clock_divisor & 0xff; AVR_port->dll = clock_divisor & 0xff;
AVR_port->dlm = (clock_divisor >> 8) & 0xff; AVR_port->dlm = (clock_divisor >> 8) & 0xff;
AVR_port->lcr = LCR_WLS_8 | LCR_PEN | LCR_EPS; AVR_port->lcr = UART_LCR_WLS_8 | UART_LCR_PEN | UART_LCR_EPS;
AVR_port->mcr = 0x00; AVR_port->mcr = 0x00;
AVR_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; AVR_port->fcr = UART_FCR_FIFO_EN | UART_FCR_RXSR | UART_FCR_TXSR;
miconCntl_DisWDT(); miconCntl_DisWDT();

22
drivers/input/ps2ser.c
View file

@ -1,6 +1,6 @@
/*********************************************************************** /***********************************************************************
* *
* (C) Copyright 2004 * (C) Copyright 2004-2009
* DENX Software Engineering * DENX Software Engineering
* Wolfgang Denk, wd@denx.de * Wolfgang Denk, wd@denx.de
* All rights reserved. * All rights reserved.
@ -18,9 +18,11 @@
#include <asm/io.h> #include <asm/io.h>
#include <asm/atomic.h> #include <asm/atomic.h>
#include <ps2mult.h> #include <ps2mult.h>
#if defined(CONFIG_SYS_NS16550) || defined(CONFIG_MPC85xx) /* This is needed for ns16550.h */
#include <ns16550.h> #ifndef CONFIG_SYS_NS16550_REG_SIZE
#define CONFIG_SYS_NS16550_REG_SIZE 1
#endif #endif
#include <ns16550.h>
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
@ -128,12 +130,12 @@ int ps2ser_init(void)
NS16550_t com_port = (NS16550_t)COM_BASE; NS16550_t com_port = (NS16550_t)COM_BASE;
com_port->ier = 0x00; com_port->ier = 0x00;
com_port->lcr = LCR_BKSE | LCR_8N1; com_port->lcr = UART_LCR_BKSE | UART_LCR_8N1;
com_port->dll = (CONFIG_SYS_NS16550_CLK / 16 / PS2SER_BAUD) & 0xff; com_port->dll = (CONFIG_SYS_NS16550_CLK / 16 / PS2SER_BAUD) & 0xff;
com_port->dlm = ((CONFIG_SYS_NS16550_CLK / 16 / PS2SER_BAUD) >> 8) & 0xff; com_port->dlm = ((CONFIG_SYS_NS16550_CLK / 16 / PS2SER_BAUD) >> 8) & 0xff;
com_port->lcr = LCR_8N1; com_port->lcr = UART_LCR_8N1;
com_port->mcr = (MCR_DTR | MCR_RTS); com_port->mcr = (UART_MCR_DTR | UART_MCR_RTS);
com_port->fcr = (FCR_FIFO_EN | FCR_RXSR | FCR_TXSR); com_port->fcr = (UART_FCR_FIFO_EN | UART_FCR_RXSR | UART_FCR_TXSR);
return (0); return (0);
} }
@ -202,7 +204,7 @@ void ps2ser_putc(int chr)
psc->psc_buffer_8 = chr; psc->psc_buffer_8 = chr;
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \ #elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555) defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
while ((com_port->lsr & LSR_THRE) == 0); while ((com_port->lsr & UART_LSR_THRE) == 0);
com_port->thr = chr; com_port->thr = chr;
#else #else
while (!(ps2ser_in(UART_LSR) & UART_LSR_THRE)); while (!(ps2ser_in(UART_LSR) & UART_LSR_THRE));
@ -227,7 +229,7 @@ static int ps2ser_getc_hw(void)
} }
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \ #elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555) defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
if (com_port->lsr & LSR_DR) { if (com_port->lsr & UART_LSR_DR) {
res = com_port->rbr; res = com_port->rbr;
} }
#else #else
@ -315,7 +317,7 @@ static void ps2ser_interrupt(void *dev_id)
} while (status & PSC_SR_RXRDY); } while (status & PSC_SR_RXRDY);
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \ #elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555) defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
} while (status & LSR_DR); } while (status & UART_LSR_DR);
#else #else
} while (status & UART_IIR_RDI); } while (status & UART_IIR_RDI);
#endif #endif

39
drivers/serial/ns16550.c
View file

@ -7,9 +7,12 @@
#include <config.h> #include <config.h>
#include <ns16550.h> #include <ns16550.h>
#define LCRVAL LCR_8N1 /* 8 data, 1 stop, no parity */ #define UART_LCRVAL UART_LCR_8N1 /* 8 data, 1 stop, no parity */
#define MCRVAL (MCR_DTR | MCR_RTS) /* RTS/DTR */ #define UART_MCRVAL (UART_MCR_DTR | \
#define FCRVAL (FCR_FIFO_EN | FCR_RXSR | FCR_TXSR) /* Clear & enable FIFOs */ UART_MCR_RTS) /* RTS/DTR */
#define UART_FCRVAL (UART_FCR_FIFO_EN | \
UART_FCR_RXSR | \
UART_FCR_TXSR) /* Clear & enable FIFOs */
void NS16550_init (NS16550_t com_port, int baud_divisor) void NS16550_init (NS16550_t com_port, int baud_divisor)
{ {
@ -17,16 +20,16 @@ void NS16550_init (NS16550_t com_port, int baud_divisor)
#ifdef CONFIG_OMAP #ifdef CONFIG_OMAP
com_port->mdr1 = 0x7; /* mode select reset TL16C750*/ com_port->mdr1 = 0x7; /* mode select reset TL16C750*/
#endif #endif
com_port->lcr = LCR_BKSE | LCRVAL; com_port->lcr = UART_LCR_BKSE | UART_LCRVAL;
com_port->dll = 0; com_port->dll = 0;
com_port->dlm = 0; com_port->dlm = 0;
com_port->lcr = LCRVAL; com_port->lcr = UART_LCRVAL;
com_port->mcr = MCRVAL; com_port->mcr = UART_MCRVAL;
com_port->fcr = FCRVAL; com_port->fcr = UART_FCRVAL;
com_port->lcr = LCR_BKSE | LCRVAL; com_port->lcr = UART_LCR_BKSE | UART_LCRVAL;
com_port->dll = baud_divisor & 0xff; com_port->dll = baud_divisor & 0xff;
com_port->dlm = (baud_divisor >> 8) & 0xff; com_port->dlm = (baud_divisor >> 8) & 0xff;
com_port->lcr = LCRVAL; com_port->lcr = UART_LCRVAL;
#if defined(CONFIG_OMAP) #if defined(CONFIG_OMAP)
#if defined(CONFIG_APTIX) #if defined(CONFIG_APTIX)
com_port->mdr1 = 3; /* /13 mode so Aptix 6MHz can hit 115200 */ com_port->mdr1 = 3; /* /13 mode so Aptix 6MHz can hit 115200 */
@ -40,29 +43,29 @@ void NS16550_init (NS16550_t com_port, int baud_divisor)
void NS16550_reinit (NS16550_t com_port, int baud_divisor) void NS16550_reinit (NS16550_t com_port, int baud_divisor)
{ {
com_port->ier = 0x00; com_port->ier = 0x00;
com_port->lcr = LCR_BKSE | LCRVAL; com_port->lcr = UART_LCR_BKSE | UART_LCRVAL;
com_port->dll = 0; com_port->dll = 0;
com_port->dlm = 0; com_port->dlm = 0;
com_port->lcr = LCRVAL; com_port->lcr = UART_LCRVAL;
com_port->mcr = MCRVAL; com_port->mcr = UART_MCRVAL;
com_port->fcr = FCRVAL; com_port->fcr = UART_FCRVAL;
com_port->lcr = LCR_BKSE; com_port->lcr = UART_LCR_BKSE;
com_port->dll = baud_divisor & 0xff; com_port->dll = baud_divisor & 0xff;
com_port->dlm = (baud_divisor >> 8) & 0xff; com_port->dlm = (baud_divisor >> 8) & 0xff;
com_port->lcr = LCRVAL; com_port->lcr = UART_LCRVAL;
} }
#endif /* CONFIG_NS16550_MIN_FUNCTIONS */ #endif /* CONFIG_NS16550_MIN_FUNCTIONS */
void NS16550_putc (NS16550_t com_port, char c) void NS16550_putc (NS16550_t com_port, char c)
{ {
while ((com_port->lsr & LSR_THRE) == 0); while ((com_port->lsr & UART_LSR_THRE) == 0);
com_port->thr = c; com_port->thr = c;
} }
#ifndef CONFIG_NS16550_MIN_FUNCTIONS #ifndef CONFIG_NS16550_MIN_FUNCTIONS
char NS16550_getc (NS16550_t com_port) char NS16550_getc (NS16550_t com_port)
{ {
while ((com_port->lsr & LSR_DR) == 0) { while ((com_port->lsr & UART_LSR_DR) == 0) {
#ifdef CONFIG_USB_TTY #ifdef CONFIG_USB_TTY
extern void usbtty_poll(void); extern void usbtty_poll(void);
usbtty_poll(); usbtty_poll();
@ -73,7 +76,7 @@ char NS16550_getc (NS16550_t com_port)
int NS16550_tstc (NS16550_t com_port) int NS16550_tstc (NS16550_t com_port)
{ {
return ((com_port->lsr & LSR_DR) != 0); return ((com_port->lsr & UART_LSR_DR) != 0);
} }
#endif /* CONFIG_NS16550_MIN_FUNCTIONS */ #endif /* CONFIG_NS16550_MIN_FUNCTIONS */

127
include/ns16550.h
View file

@ -1,6 +1,10 @@
/* /*
* NS16550 Serial Port * NS16550 Serial Port
* originally from linux source (arch/ppc/boot/ns16550.h) * originally from linux source (arch/ppc/boot/ns16550.h)
*
* Cleanup and unification
* (C) 2009 by Detlev Zundel, DENX Software Engineering GmbH
*
* modified slightly to * modified slightly to
* have addresses as offsets from CONFIG_SYS_ISA_BASE * have addresses as offsets from CONFIG_SYS_ISA_BASE
* added a few more definitions * added a few more definitions
@ -115,53 +119,100 @@ struct NS16550 {
typedef volatile struct NS16550 *NS16550_t; typedef volatile struct NS16550 *NS16550_t;
#define FCR_FIFO_EN 0x01 /* Fifo enable */ /*
#define FCR_RXSR 0x02 /* Receiver soft reset */ * These are the definitions for the FIFO Control Register
#define FCR_TXSR 0x04 /* Transmitter soft reset */ */
#define UART_FCR_FIFO_EN 0x01 /* Fifo enable */
#define UART_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */
#define UART_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */
#define UART_FCR_DMA_SELECT 0x08 /* For DMA applications */
#define UART_FCR_TRIGGER_MASK 0xC0 /* Mask for the FIFO trigger range */
#define UART_FCR_TRIGGER_1 0x00 /* Mask for trigger set at 1 */
#define UART_FCR_TRIGGER_4 0x40 /* Mask for trigger set at 4 */
#define UART_FCR_TRIGGER_8 0x80 /* Mask for trigger set at 8 */
#define UART_FCR_TRIGGER_14 0xC0 /* Mask for trigger set at 14 */
#define MCR_DTR 0x01 #define UART_FCR_RXSR 0x02 /* Receiver soft reset */
#define MCR_RTS 0x02 #define UART_FCR_TXSR 0x04 /* Transmitter soft reset */
#define MCR_DMA_EN 0x04
#define MCR_TX_DFR 0x08
#define MCR_LOOP 0x10 /* Enable loopback test mode */
#define LCR_WLS_MSK 0x03 /* character length select mask */ /*
#define LCR_WLS_5 0x00 /* 5 bit character length */ * These are the definitions for the Modem Control Register
#define LCR_WLS_6 0x01 /* 6 bit character length */ */
#define LCR_WLS_7 0x02 /* 7 bit character length */ #define UART_MCR_DTR 0x01 /* DTR */
#define LCR_WLS_8 0x03 /* 8 bit character length */ #define UART_MCR_RTS 0x02 /* RTS */
#define LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */ #define UART_MCR_OUT1 0x04 /* Out 1 */
#define LCR_PEN 0x08 /* Parity eneble */ #define UART_MCR_OUT2 0x08 /* Out 2 */
#define LCR_EPS 0x10 /* Even Parity Select */ #define UART_MCR_LOOP 0x10 /* Enable loopback test mode */
#define LCR_STKP 0x20 /* Stick Parity */
#define LCR_SBRK 0x40 /* Set Break */
#define LCR_BKSE 0x80 /* Bank select enable */
#define LCR_DLAB 0x80 /* Divisor latch access bit */
#define LSR_DR 0x01 /* Data ready */ #define UART_MCR_DMA_EN 0x04
#define LSR_OE 0x02 /* Overrun */ #define UART_MCR_TX_DFR 0x08
#define LSR_PE 0x04 /* Parity error */
#define LSR_FE 0x08 /* Framing error */ /*
#define LSR_BI 0x10 /* Break */ * These are the definitions for the Line Control Register
#define LSR_THRE 0x20 /* Xmit holding register empty */ *
#define LSR_TEMT 0x40 /* Xmitter empty */ * Note: if the word length is 5 bits (UART_LCR_WLEN5), then setting
#define LSR_ERR 0x80 /* Error */ * UART_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
*/
#define UART_LCR_WLS_MSK 0x03 /* character length select mask */
#define UART_LCR_WLS_5 0x00 /* 5 bit character length */
#define UART_LCR_WLS_6 0x01 /* 6 bit character length */
#define UART_LCR_WLS_7 0x02 /* 7 bit character length */
#define UART_LCR_WLS_8 0x03 /* 8 bit character length */
#define UART_LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */
#define UART_LCR_PEN 0x08 /* Parity eneble */
#define UART_LCR_EPS 0x10 /* Even Parity Select */
#define UART_LCR_STKP 0x20 /* Stick Parity */
#define UART_LCR_SBRK 0x40 /* Set Break */
#define UART_LCR_BKSE 0x80 /* Bank select enable */
#define UART_LCR_DLAB 0x80 /* Divisor latch access bit */
/*
* These are the definitions for the Line Status Register
*/
#define UART_LSR_DR 0x01 /* Data ready */
#define UART_LSR_OE 0x02 /* Overrun */
#define UART_LSR_PE 0x04 /* Parity error */
#define UART_LSR_FE 0x08 /* Framing error */
#define UART_LSR_BI 0x10 /* Break */
#define UART_LSR_THRE 0x20 /* Xmit holding register empty */
#define UART_LSR_TEMT 0x40 /* Xmitter empty */
#define UART_LSR_ERR 0x80 /* Error */
#define UART_MSR_DCD 0x80 /* Data Carrier Detect */
#define UART_MSR_RI 0x40 /* Ring Indicator */
#define UART_MSR_DSR 0x20 /* Data Set Ready */
#define UART_MSR_CTS 0x10 /* Clear to Send */
#define UART_MSR_DDCD 0x08 /* Delta DCD */
#define UART_MSR_TERI 0x04 /* Trailing edge ring indicator */
#define UART_MSR_DDSR 0x02 /* Delta DSR */
#define UART_MSR_DCTS 0x01 /* Delta CTS */
/*
* These are the definitions for the Interrupt Identification Register
*/
#define UART_IIR_NO_INT 0x01 /* No interrupts pending */
#define UART_IIR_ID 0x06 /* Mask for the interrupt ID */
#define UART_IIR_MSI 0x00 /* Modem status interrupt */
#define UART_IIR_THRI 0x02 /* Transmitter holding register empty */
#define UART_IIR_RDI 0x04 /* Receiver data interrupt */
#define UART_IIR_RLSI 0x06 /* Receiver line status interrupt */
/*
* These are the definitions for the Interrupt Enable Register
*/
#define UART_IER_MSI 0x08 /* Enable Modem status interrupt */
#define UART_IER_RLSI 0x04 /* Enable receiver line status interrupt */
#define UART_IER_THRI 0x02 /* Enable Transmitter holding register int. */
#define UART_IER_RDI 0x01 /* Enable receiver data interrupt */
#define MSR_DCD 0x80 /* Data Carrier Detect */
#define MSR_RI 0x40 /* Ring Indicator */
#define MSR_DSR 0x20 /* Data Set Ready */
#define MSR_CTS 0x10 /* Clear to Send */
#define MSR_DDCD 0x08 /* Delta DCD */
#define MSR_TERI 0x04 /* Trailing edge ring indicator */
#define MSR_DDSR 0x02 /* Delta DSR */
#define MSR_DCTS 0x01 /* Delta CTS */
#ifdef CONFIG_OMAP1510 #ifdef CONFIG_OMAP1510
#define OSC_12M_SEL 0x01 /* selects 6.5 * current clk div */ #define OSC_12M_SEL 0x01 /* selects 6.5 * current clk div */
#endif #endif
/* useful defaults for LCR */ /* useful defaults for LCR */
#define LCR_8N1 0x03 #define UART_LCR_8N1 0x03
void NS16550_init (NS16550_t com_port, int baud_divisor); void NS16550_init (NS16550_t com_port, int baud_divisor);
void NS16550_putc (NS16550_t com_port, char c); void NS16550_putc (NS16550_t com_port, char c);

99
include/ps2mult.h
View file

@ -53,103 +53,4 @@ struct serial_state {
u8 *iomem_base; u8 *iomem_base;
}; };
#define UART_RX 0 /* In: Receive buffer (DLAB=0) */
#define UART_TX 0 /* Out: Transmit buffer (DLAB=0) */
#define UART_DLL 0 /* Out: Divisor Latch Low (DLAB=1) */
#define UART_DLM 1 /* Out: Divisor Latch High (DLAB=1) */
#define UART_IER 1 /* Out: Interrupt Enable Register */
#define UART_IIR 2 /* In: Interrupt ID Register */
#define UART_FCR 2 /* Out: FIFO Control Register */
#define UART_LCR 3 /* Out: Line Control Register */
#define UART_MCR 4 /* Out: Modem Control Register */
#define UART_LSR 5 /* In: Line Status Register */
#define UART_MSR 6 /* In: Modem Status Register */
#define UART_SCR 7 /* I/O: Scratch Register */
/*
* These are the definitions for the FIFO Control Register
* (16650 only)
*/
#define UART_FCR_ENABLE_FIFO 0x01 /* Enable the FIFO */
#define UART_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */
#define UART_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */
#define UART_FCR_DMA_SELECT 0x08 /* For DMA applications */
#define UART_FCR_TRIGGER_MASK 0xC0 /* Mask for the FIFO trigger range */
#define UART_FCR_TRIGGER_1 0x00 /* Mask for trigger set at 1 */
#define UART_FCR_TRIGGER_4 0x40 /* Mask for trigger set at 4 */
#define UART_FCR_TRIGGER_8 0x80 /* Mask for trigger set at 8 */
#define UART_FCR_TRIGGER_14 0xC0 /* Mask for trigger set at 14 */
/*
* These are the definitions for the Line Control Register
*
* Note: if the word length is 5 bits (UART_LCR_WLEN5), then setting
* UART_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
*/
#define UART_LCR_DLAB 0x80 /* Divisor latch access bit */
#define UART_LCR_SBC 0x40 /* Set break control */
#define UART_LCR_SPAR 0x20 /* Stick parity (?) */
#define UART_LCR_EPAR 0x10 /* Even parity select */
#define UART_LCR_PARITY 0x08 /* Parity Enable */
#define UART_LCR_STOP 0x04 /* Stop bits: 0=1 stop bit, 1= 2 stop bits */
#define UART_LCR_WLEN5 0x00 /* Wordlength: 5 bits */
#define UART_LCR_WLEN6 0x01 /* Wordlength: 6 bits */
#define UART_LCR_WLEN7 0x02 /* Wordlength: 7 bits */
#define UART_LCR_WLEN8 0x03 /* Wordlength: 8 bits */
/*
* These are the definitions for the Line Status Register
*/
#define UART_LSR_TEMT 0x40 /* Transmitter empty */
#define UART_LSR_THRE 0x20 /* Transmit-hold-register empty */
#define UART_LSR_BI 0x10 /* Break interrupt indicator */
#define UART_LSR_FE 0x08 /* Frame error indicator */
#define UART_LSR_PE 0x04 /* Parity error indicator */
#define UART_LSR_OE 0x02 /* Overrun error indicator */
#define UART_LSR_DR 0x01 /* Receiver data ready */
/*
* These are the definitions for the Interrupt Identification Register
*/
#define UART_IIR_NO_INT 0x01 /* No interrupts pending */
#define UART_IIR_ID 0x06 /* Mask for the interrupt ID */
#define UART_IIR_MSI 0x00 /* Modem status interrupt */
#define UART_IIR_THRI 0x02 /* Transmitter holding register empty */
#define UART_IIR_RDI 0x04 /* Receiver data interrupt */
#define UART_IIR_RLSI 0x06 /* Receiver line status interrupt */
/*
* These are the definitions for the Interrupt Enable Register
*/
#define UART_IER_MSI 0x08 /* Enable Modem status interrupt */
#define UART_IER_RLSI 0x04 /* Enable receiver line status interrupt */
#define UART_IER_THRI 0x02 /* Enable Transmitter holding register int. */
#define UART_IER_RDI 0x01 /* Enable receiver data interrupt */
/*
* These are the definitions for the Modem Control Register
*/
#define UART_MCR_LOOP 0x10 /* Enable loopback test mode */
#define UART_MCR_OUT2 0x08 /* Out2 complement */
#define UART_MCR_OUT1 0x04 /* Out1 complement */
#define UART_MCR_RTS 0x02 /* RTS complement */
#define UART_MCR_DTR 0x01 /* DTR complement */
/*
* These are the definitions for the Modem Status Register
*/
#define UART_MSR_DCD 0x80 /* Data Carrier Detect */
#define UART_MSR_RI 0x40 /* Ring Indicator */
#define UART_MSR_DSR 0x20 /* Data Set Ready */
#define UART_MSR_CTS 0x10 /* Clear to Send */
#define UART_MSR_DDCD 0x08 /* Delta DCD */
#define UART_MSR_TERI 0x04 /* Trailing edge ring indicator */
#define UART_MSR_DDSR 0x02 /* Delta DSR */
#define UART_MSR_DCTS 0x01 /* Delta CTS */
#define UART_MSR_ANY_DELTA 0x0F /* Any of the delta bits! */
#endif /* __LINUX_PS2MULT_H */ #endif /* __LINUX_PS2MULT_H */