Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 */
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() ((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY)
38
39/* 2.6.22 doesn't have them any more, hardcode it for now (these values should
40 * be fine for 99% cases) */
41#ifndef BASE_BAUD
42#define BASE_BAUD (1843200 / 16)
43#endif
44#ifndef STD_COM_FLAGS
45#ifdef CONFIG_SERIAL_DETECT_IRQ
46#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
47#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
48#else
49#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
50#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
51#endif
52#endif
53#ifndef SERIAL_PORT_DFNS
54#define SERIAL_PORT_DFNS \
55 /* UART CLK PORT IRQ FLAGS */ \
56 { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
57 { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
58 { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
59 { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
60#endif
61#ifndef IRQF_SHARED
62#define IRQF_SHARED SA_SHIRQ
63#endif
64
65#endif