drivers/media/video/gspca/m5602/m5602_bridge.h

   1 /*
   2  * USB Driver for ALi m5602 based webcams
   3  *
   4  * Copyright (C) 2008 Erik Andrén
   5  * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
   6  * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
   7  *
   8  * Portions of code to USB interface and ALi driver software,
   9  * Copyright (c) 2006 Willem Duinker
  10  * v4l2 interface modeled after the V4L2 driver
  11  * for SN9C10x PC Camera Controllers
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License as
  15  * published by the Free Software Foundation, version 2.
  16  *
  17  */
  18
  19 #ifndef M5602_BRIDGE_H_
  20 #define M5602_BRIDGE_H_
  21
  22 #include <linux/slab.h>
  23 #include "gspca.h"
  24
  25 #define MODULE_NAME "ALi m5602"
  26
  27 /*****************************************************************************/
  28
  29 #define M5602_XB_SENSOR_TYPE            0x00
  30 #define M5602_XB_SENSOR_CTRL            0x01
  31 #define M5602_XB_LINE_OF_FRAME_H        0x02
  32 #define M5602_XB_LINE_OF_FRAME_L        0x03
  33 #define M5602_XB_PIX_OF_LINE_H          0x04
  34 #define M5602_XB_PIX_OF_LINE_L          0x05
  35 #define M5602_XB_VSYNC_PARA             0x06
  36 #define M5602_XB_HSYNC_PARA             0x07
  37 #define M5602_XB_TEST_MODE_1            0x08
  38 #define M5602_XB_TEST_MODE_2            0x09
  39 #define M5602_XB_SIG_INI                0x0a
  40 #define M5602_XB_DS_PARA                0x0e
  41 #define M5602_XB_TRIG_PARA              0x0f
  42 #define M5602_XB_CLK_PD                 0x10
  43 #define M5602_XB_MCU_CLK_CTRL           0x12
  44 #define M5602_XB_MCU_CLK_DIV            0x13
  45 #define M5602_XB_SEN_CLK_CTRL           0x14
  46 #define M5602_XB_SEN_CLK_DIV            0x15
  47 #define M5602_XB_AUD_CLK_CTRL           0x16
  48 #define M5602_XB_AUD_CLK_DIV            0x17
  49 #define M5602_OB_AC_LINK_STATE          0x22
  50 #define M5602_OB_PCM_SLOT_INDEX         0x24
  51 #define M5602_OB_GPIO_SLOT_INDEX        0x25
  52 #define M5602_OB_ACRX_STATUS_ADDRESS_H  0x28
  53 #define M5602_OB_ACRX_STATUS_DATA_L     0x29
  54 #define M5602_OB_ACRX_STATUS_DATA_H     0x2a
  55 #define M5602_OB_ACTX_COMMAND_ADDRESS   0x31
  56 #define M5602_OB_ACRX_COMMAND_DATA_L    0x32
  57 #define M5602_OB_ACTX_COMMAND_DATA_H    0X33
  58 #define M5602_XB_DEVCTR1                0x41
  59 #define M5602_XB_EPSETR0                0x42
  60 #define M5602_XB_EPAFCTR                0x47
  61 #define M5602_XB_EPBFCTR                0x49
  62 #define M5602_XB_EPEFCTR                0x4f
  63 #define M5602_XB_TEST_REG               0x53
  64 #define M5602_XB_ALT2SIZE               0x54
  65 #define M5602_XB_ALT3SIZE               0x55
  66 #define M5602_XB_OBSFRAME               0x56
  67 #define M5602_XB_PWR_CTL                0x59
  68 #define M5602_XB_ADC_CTRL               0x60
  69 #define M5602_XB_ADC_DATA               0x61
  70 #define M5602_XB_MISC_CTRL              0x62
  71 #define M5602_XB_SNAPSHOT               0x63
  72 #define M5602_XB_SCRATCH_1              0x64
  73 #define M5602_XB_SCRATCH_2              0x65
  74 #define M5602_XB_SCRATCH_3              0x66
  75 #define M5602_XB_SCRATCH_4              0x67
  76 #define M5602_XB_I2C_CTRL               0x68
  77 #define M5602_XB_I2C_CLK_DIV            0x69
  78 #define M5602_XB_I2C_DEV_ADDR           0x6a
  79 #define M5602_XB_I2C_REG_ADDR           0x6b
  80 #define M5602_XB_I2C_DATA               0x6c
  81 #define M5602_XB_I2C_STATUS             0x6d
  82 #define M5602_XB_GPIO_DAT_H             0x70
  83 #define M5602_XB_GPIO_DAT_L             0x71
  84 #define M5602_XB_GPIO_DIR_H             0x72
  85 #define M5602_XB_GPIO_DIR_L             0x73
  86 #define M5602_XB_GPIO_EN_H              0x74
  87 #define M5602_XB_GPIO_EN_L              0x75
  88 #define M5602_XB_GPIO_DAT               0x76
  89 #define M5602_XB_GPIO_DIR               0x77
  90 #define M5602_XB_SEN_CLK_CONTROL        0x80
  91 #define M5602_XB_SEN_CLK_DIVISION       0x81
  92 #define M5602_XB_CPR_CLK_CONTROL        0x82
  93 #define M5602_XB_CPR_CLK_DIVISION       0x83
  94 #define M5602_XB_MCU_CLK_CONTROL        0x84
  95 #define M5602_XB_MCU_CLK_DIVISION       0x85
  96 #define M5602_XB_DCT_CLK_CONTROL        0x86
  97 #define M5602_XB_DCT_CLK_DIVISION       0x87
  98 #define M5602_XB_EC_CLK_CONTROL         0x88
  99 #define M5602_XB_EC_CLK_DIVISION        0x89
 100 #define M5602_XB_LBUF_CLK_CONTROL       0x8a
 101 #define M5602_XB_LBUF_CLK_DIVISION      0x8b
 102
 103 #define I2C_BUSY 0x80
 104
 105 /*****************************************************************************/
 106
 107 /* Driver info */
 108 #define DRIVER_AUTHOR "ALi m5602 Linux Driver Project"
 109 #define DRIVER_DESC "ALi m5602 webcam driver"
 110
 111 #define M5602_ISOC_ENDPOINT_ADDR 0x81
 112 #define M5602_INTR_ENDPOINT_ADDR 0x82
 113
 114 #define M5602_URB_MSG_TIMEOUT   5000
 115
 116 /*****************************************************************************/
 117
 118 /* A skeleton used for sending messages to the m5602 bridge */
 119 static const unsigned char bridge_urb_skeleton[] = {
 120         0x13, 0x00, 0x81, 0x00
 121 };
 122
 123 /* A skeleton used for sending messages to the sensor */
 124 static const unsigned char sensor_urb_skeleton[] = {
 125         0x23, M5602_XB_GPIO_EN_H, 0x81, 0x06,
 126         0x23, M5602_XB_MISC_CTRL, 0x81, 0x80,
 127         0x13, M5602_XB_I2C_DEV_ADDR, 0x81, 0x00,
 128         0x13, M5602_XB_I2C_REG_ADDR, 0x81, 0x00,
 129         0x13, M5602_XB_I2C_DATA, 0x81, 0x00,
 130         0x13, M5602_XB_I2C_CTRL, 0x81, 0x11
 131 };
 132
 133 struct sd {
 134         struct gspca_dev gspca_dev;
 135
 136         /* A pointer to the currently connected sensor */
 137         const struct m5602_sensor *sensor;
 138
 139         struct sd_desc *desc;
 140
 141         /* Sensor private data */
 142         void *sensor_priv;
 143
 144         /* The current frame's id, used to detect frame boundaries */
 145         u8 frame_id;
 146
 147         /* The current frame count */
 148         u32 frame_count;
 149 };
 150
 151 int m5602_read_bridge(
 152         struct sd *sd, const u8 address, u8 *i2c_data);
 153
 154 int m5602_write_bridge(
 155         struct sd *sd, const u8 address, const u8 i2c_data);
 156
 157 int m5602_write_sensor(struct sd *sd, const u8 address,
 158                        u8 *i2c_data, const u8 len);
 159
 160 int m5602_read_sensor(struct sd *sd, const u8 address,
 161                       u8 *i2c_data, const u8 len);
 162
 163 #endif