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#include <linux/serial_reg.h>   /* for more serial constants */
   6#ifndef __sparc__
   7#include <linux/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 */
  14struct 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() \
  38        ((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY)
  39
  40#endif
  41