1/*
2 * ioctl defines for synchronous serial port driver
3 *
4 * Copyright (c) 2001-2003 Axis Communications AB
5 *
6 * Author: Mikael Starvik
7 *
8 */
9
10#ifndef SYNC_SERIAL_H
11#define SYNC_SERIAL_H
12
13#include <linux/ioctl.h>
14
15#define SSP_SPEED      _IOR('S', 0, unsigned int)
16#define SSP_MODE       _IOR('S', 1, unsigned int)
17#define SSP_FRAME_SYNC _IOR('S', 2, unsigned int)
18#define SSP_IPOLARITY  _IOR('S', 3, unsigned int)
19#define SSP_OPOLARITY  _IOR('S', 4, unsigned int)
20#define SSP_SPI        _IOR('S', 5, unsigned int)
21#define SSP_INBUFCHUNK _IOR('S', 6, unsigned int)
22
23/* Values for SSP_SPEED */
24#define SSP150        0
25#define SSP300        1
26#define SSP600        2
27#define SSP1200       3
28#define SSP2400       4
29#define SSP4800       5
30#define SSP9600       6
31#define SSP19200      7
32#define SSP28800      8
33#define SSP57600      9
34#define SSP115200    10
35#define SSP230400    11
36#define SSP460800    12
37#define SSP921600    13
38#define SSP3125000   14
39#define CODEC        15
40
41#define FREQ_4MHz   0
42#define FREQ_2MHz   1
43#define FREQ_1MHz   2
44#define FREQ_512kHz 3
45#define FREQ_256kHz 4
46#define FREQ_128kHz 5
47#define FREQ_64kHz  6
48#define FREQ_32kHz  7
49
50/* Used by application to set CODEC divider, word rate and frame rate */
51#define CODEC_VAL(freq, clk_per_sync, sync_per_frame) (CODEC | (freq << 8) | (clk_per_sync << 16) | (sync_per_frame << 28))
52
53/* Used by driver to extract speed */
54#define GET_SPEED(x) (x & 0xff)
55#define GET_FREQ(x) ((x & 0xff00) >> 8)
56#define GET_WORD_RATE(x) (((x & 0x0fff0000) >> 16) - 1)
57#define GET_FRAME_RATE(x) (((x & 0xf0000000) >> 28) - 1)
58
59/* Values for SSP_MODE */
60#define MASTER_OUTPUT 0
61#define SLAVE_OUTPUT  1
62#define MASTER_INPUT  2
63#define SLAVE_INPUT   3
64#define MASTER_BIDIR  4
65#define SLAVE_BIDIR   5
66
67/* Values for SSP_FRAME_SYNC */
68#define NORMAL_SYNC                1
69#define EARLY_SYNC                 2
70
71#define BIT_SYNC                   4
72#define WORD_SYNC                  8
73#define EXTENDED_SYNC           0x10
74
75#define SYNC_OFF                0x20
76#define SYNC_ON                 0x40
77#define WORD_SIZE_8             0x80
78#define WORD_SIZE_12           0x100
79#define WORD_SIZE_16           0x200
80#define WORD_SIZE_24           0x400
81#define WORD_SIZE_32           0x800
82#define BIT_ORDER_LSB         0x1000
83#define BIT_ORDER_MSB         0x2000
84#define FLOW_CONTROL_ENABLE   0x4000
85#define FLOW_CONTROL_DISABLE  0x8000
86#define CLOCK_GATED          0x10000
87#define CLOCK_NOT_GATED      0x20000
88
89/* Values for SSP_IPOLARITY and SSP_OPOLARITY */
90#define CLOCK_NORMAL         1
91#define CLOCK_INVERT         2
92#define CLOCK_INEGEDGE       CLOCK_NORMAL
93#define CLOCK_IPOSEDGE       CLOCK_INVERT
94#define FRAME_NORMAL         4
95#define FRAME_INVERT         8
96#define STATUS_NORMAL      0x10
97#define STATUS_INVERT      0x20
98
99/* Values for SSP_SPI */
100#define SPI_MASTER           0
101#define SPI_SLAVE            1
102
103/* Values for SSP_INBUFCHUNK */
104/* plain integer with the size of DMA chunks */
105
106#endif
107