Linux Kernel  3.7.1
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serialio.h
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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  */
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