[mirror_ubuntu-jammy-kernel.git] / drivers / accessibility / speakup / serialio.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SPEAKUP_SERIAL_H
#define _SPEAKUP_SERIAL_H

#include <linux/serial.h>	/* for rs_table, serial constants */
#include <linux/serial_reg.h>	/* for more serial constants */
#include <linux/serial_core.h>

#include "spk_priv.h"

/*
 * this is cut&paste from 8250.h. Get rid of the structure, the definitions
 * and this whole broken driver.
 */
struct old_serial_port {
	unsigned int uart; /* unused */
	unsigned int baud_base;
	unsigned int port;
	unsigned int irq;
	upf_t flags; /* unused */
};

/* countdown values for serial timeouts in us */
#define SPK_SERIAL_TIMEOUT SPK_SYNTH_TIMEOUT
/* countdown values transmitter/dsr timeouts in us */
#define SPK_XMITR_TIMEOUT 100000
/* countdown values cts timeouts in us */
#define SPK_CTS_TIMEOUT 100000
/* check ttyS0 ... ttyS3 */
#define SPK_LO_TTY 0
#define SPK_HI_TTY 3
/* # of timeouts permitted before disable */
#define NUM_DISABLE_TIMEOUTS 3
/* buffer timeout in ms */
#define SPK_TIMEOUT 100
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)

#define spk_serial_tx_busy() \
	((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY)

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
c6e3fd22 WH	2	#ifndef _SPEAKUP_SERIAL_H
	3	#define _SPEAKUP_SERIAL_H
	4
4b71598b	5	#include <linux/serial.h> /* for rs_table, serial constants */
c6e3fd22	6	#include <linux/serial_reg.h> /* for more serial constants */
ff59f2a6	7	#include <linux/serial_core.h>
c6e3fd22	8
6b9ad1c7 OK	9	#include "spk_priv.h"
6b9ad1c7 OK	10
3ee0017e JS	11	/*
	12	* this is cut&paste from 8250.h. Get rid of the structure, the definitions
	13	* and this whole broken driver.
	14	*/
	15	struct old_serial_port {
	16	unsigned int uart; /* unused */
	17	unsigned int baud_base;
	18	unsigned int port;
	19	unsigned int irq;
ff59f2a6	20	upf_t flags; /* unused */
3ee0017e JS	21	};
3ee0017e JS	22
c6e3fd22	23	/* countdown values for serial timeouts in us */
6b9ad1c7	24	#define SPK_SERIAL_TIMEOUT SPK_SYNTH_TIMEOUT
c6e3fd22 WH	25	/* countdown values transmitter/dsr timeouts in us */
	26	#define SPK_XMITR_TIMEOUT 100000
	27	/* countdown values cts timeouts in us */
	28	#define SPK_CTS_TIMEOUT 100000
	29	/* check ttyS0 ... ttyS3 */
	30	#define SPK_LO_TTY 0
	31	#define SPK_HI_TTY 3
	32	/* # of timeouts permitted before disable */
	33	#define NUM_DISABLE_TIMEOUTS 3
	34	/* buffer timeout in ms */
	35	#define SPK_TIMEOUT 100
	36	#define BOTH_EMPTY (UART_LSR_TEMT \| UART_LSR_THRE)
	37
63b8ebe4 SG	38	#define spk_serial_tx_busy() \
63b8ebe4 SG	39	((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY)
c6e3fd22	40
c6e3fd22	41	#endif