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