1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _SPEAKUP_SERIAL_H 3 #define _SPEAKUP_SERIAL_H 4 5 #include <linux/serial.h> /* for rs_table, serial constants */ 6 #include <linux/serial_reg.h> /* for more serial constants */ 7 #ifndef __sparc__ 8 #include <linux/serial.h> 9 #endif 10 #include <linux/serial_core.h> 11 12 #include "spk_priv.h" 13 14 /* 15 * this is cut&paste from 8250.h. Get rid of the structure, the definitions 16 * and this whole broken driver. 17 */ 18 struct old_serial_port { 19 unsigned int uart; /* unused */ 20 unsigned int baud_base; 21 unsigned int port; 22 unsigned int irq; 23 upf_t flags; /* unused */ 24 }; 25 26 /* countdown values for serial timeouts in us */ 27 #define SPK_SERIAL_TIMEOUT SPK_SYNTH_TIMEOUT 28 /* countdown values transmitter/dsr timeouts in us */ 29 #define SPK_XMITR_TIMEOUT 100000 30 /* countdown values cts timeouts in us */ 31 #define SPK_CTS_TIMEOUT 100000 32 /* check ttyS0 ... ttyS3 */ 33 #define SPK_LO_TTY 0 34 #define SPK_HI_TTY 3 35 /* # of timeouts permitted before disable */ 36 #define NUM_DISABLE_TIMEOUTS 3 37 /* buffer timeout in ms */ 38 #define SPK_TIMEOUT 100 39 #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) 40 41 #define spk_serial_tx_busy() \ 42 ((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY) 43 44 #endif 45
