LXR linux/drivers/staging/speakup/serialio.h

   1#ifndef _SPEAKUP_SERIAL_H
   2#define _SPEAKUP_SERIAL_H
   3
   4#include <linux/serial.h>       /* for rs_table, serial constants &
   5                                   serial_uart_config */
   6#include <linux/serial_reg.h>   /* for more serial constants */
   7#include <linux/serialP.h>      /* for struct serial_state */
   8#ifndef __sparc__
   9#include <asm/serial.h>
  10#endif
  11
  12/* countdown values for serial timeouts in us */
  13#define SPK_SERIAL_TIMEOUT 100000
  14/* countdown values transmitter/dsr timeouts in us */
  15#define SPK_XMITR_TIMEOUT 100000
  16/* countdown values cts timeouts in us */
  17#define SPK_CTS_TIMEOUT 100000
  18/* check ttyS0 ... ttyS3 */
  19#define SPK_LO_TTY 0
  20#define SPK_HI_TTY 3
  21/* # of timeouts permitted before disable */
  22#define NUM_DISABLE_TIMEOUTS 3
  23/* buffer timeout in ms */
  24#define SPK_TIMEOUT 100
  25#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
  26
  27#define spk_serial_tx_busy() ((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY)
  28
  29/* 2.6.22 doesn't have them any more, hardcode it for now (these values should
  30 * be fine for 99% cases) */
  31#ifndef BASE_BAUD
  32#define BASE_BAUD (1843200 / 16)
  33#endif
  34#ifndef STD_COM_FLAGS
  35#ifdef CONFIG_SERIAL_DETECT_IRQ
  36#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
  37#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
  38#else
  39#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
  40#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
  41#endif
  42#endif
  43#ifndef SERIAL_PORT_DFNS
  44#define SERIAL_PORT_DFNS                        \
  45        /* UART CLK   PORT IRQ     FLAGS        */                      \
  46        { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },      /* ttyS0 */     \
  47        { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },      /* ttyS1 */     \
  48        { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },      /* ttyS2 */     \
  49        { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },     /* ttyS3 */
  50#endif
  51#ifndef IRQF_SHARED
  52#define IRQF_SHARED SA_SHIRQ
  53#endif
  54
  55#endif
  56