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 #include <linux/serial_reg.h>   /* for more serial constants */
   6 #ifndef __sparc__
   7 #include <asm/serial.h>
   8 #endif
   9
  10 /*
  11  * this is cut&paste from 8250.h. Get rid of the structure, the definitions
  12  * and this whole broken driver.
  13  */
  14 struct old_serial_port {
  15         unsigned int uart; /* unused */
  16         unsigned int baud_base;
  17         unsigned int port;
  18         unsigned int irq;
  19         unsigned int flags; /* unused */
  20 };
  21
  22 /* countdown values for serial timeouts in us */
  23 #define SPK_SERIAL_TIMEOUT 100000
  24 /* countdown values transmitter/dsr timeouts in us */
  25 #define SPK_XMITR_TIMEOUT 100000
  26 /* countdown values cts timeouts in us */
  27 #define SPK_CTS_TIMEOUT 100000
  28 /* check ttyS0 ... ttyS3 */
  29 #define SPK_LO_TTY 0
  30 #define SPK_HI_TTY 3
  31 /* # of timeouts permitted before disable */
  32 #define NUM_DISABLE_TIMEOUTS 3
  33 /* buffer timeout in ms */
  34 #define SPK_TIMEOUT 100
  35 #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
  36
  37 #define spk_serial_tx_busy() ((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY)
  38
  39 #endif