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 "gspca.h"
  23
  24 #define MODULE_NAME "ALi m5602"
  25
  26 /*****************************************************************************/
  27
  28 #define M5602_XB_SENSOR_TYPE            0x00
  29 #define M5602_XB_SENSOR_CTRL            0x01
  30 #define M5602_XB_LINE_OF_FRAME_H        0x02
  31 #define M5602_XB_LINE_OF_FRAME_L        0x03
  32 #define M5602_XB_PIX_OF_LINE_H          0x04
  33 #define M5602_XB_PIX_OF_LINE_L          0x05
  34 #define M5602_XB_VSYNC_PARA             0x06
  35 #define M5602_XB_HSYNC_PARA             0x07
  36 #define M5602_XB_TEST_MODE_1            0x08
  37 #define M5602_XB_TEST_MODE_2            0x09
  38 #define M5602_XB_SIG_INI                0x0a
  39 #define M5602_XB_DS_PARA                0x0e
  40 #define M5602_XB_TRIG_PARA              0x0f
  41 #define M5602_XB_CLK_PD                 0x10
  42 #define M5602_XB_MCU_CLK_CTRL           0x12
  43 #define M5602_XB_MCU_CLK_DIV            0x13
  44 #define M5602_XB_SEN_CLK_CTRL           0x14
  45 #define M5602_XB_SEN_CLK_DIV            0x15
  46 #define M5602_XB_AUD_CLK_CTRL           0x16
  47 #define M5602_XB_AUD_CLK_DIV            0x17
  48 #define M5602_XB_DEVCTR1                0x41
  49 #define M5602_XB_EPSETR0                0x42
  50 #define M5602_XB_EPAFCTR                0x47
  51 #define M5602_XB_EPBFCTR                0x49
  52 #define M5602_XB_EPEFCTR                0x4f
  53 #define M5602_XB_TEST_REG               0x53
  54 #define M5602_XB_ALT2SIZE               0x54
  55 #define M5602_XB_ALT3SIZE               0x55
  56 #define M5602_XB_OBSFRAME               0x56
  57 #define M5602_XB_PWR_CTL                0x59
  58 #define M5602_XB_ADC_CTRL               0x60
  59 #define M5602_XB_ADC_DATA               0x61
  60 #define M5602_XB_MISC_CTRL              0x62
  61 #define M5602_XB_SNAPSHOT               0x63
  62 #define M5602_XB_SCRATCH_1              0x64
  63 #define M5602_XB_SCRATCH_2              0x65
  64 #define M5602_XB_SCRATCH_3              0x66
  65 #define M5602_XB_SCRATCH_4              0x67
  66 #define M5602_XB_I2C_CTRL               0x68
  67 #define M5602_XB_I2C_CLK_DIV            0x69
  68 #define M5602_XB_I2C_DEV_ADDR           0x6a
  69 #define M5602_XB_I2C_REG_ADDR           0x6b
  70 #define M5602_XB_I2C_DATA               0x6c
  71 #define M5602_XB_I2C_STATUS             0x6d
  72 #define M5602_XB_GPIO_DAT_H             0x70
  73 #define M5602_XB_GPIO_DAT_L             0x71
  74 #define M5602_XB_GPIO_DIR_H             0x72
  75 #define M5602_XB_GPIO_DIR_L             0x73
  76 #define M5602_XB_GPIO_EN_H              0x74
  77 #define M5602_XB_GPIO_EN_L              0x75
  78 #define M5602_XB_GPIO_DAT               0x76
  79 #define M5602_XB_GPIO_DIR               0x77
  80 #define M5602_XB_MISC_CTL               0x70
  81
  82 #define I2C_BUSY 0x80
  83
  84 /*****************************************************************************/
  85
  86 /* Driver info */
  87 #define DRIVER_AUTHOR "ALi m5602 Linux Driver Project"
  88 #define DRIVER_DESC "ALi m5602 webcam driver"
  89
  90 #define M5602_ISOC_ENDPOINT_ADDR 0x81
  91 #define M5602_INTR_ENDPOINT_ADDR 0x82
  92
  93 #define M5602_URB_MSG_TIMEOUT   5000
  94
  95 /*****************************************************************************/
  96
  97 /* A skeleton used for sending messages to the m5602 bridge */
  98 static const unsigned char bridge_urb_skeleton[] = {
  99         0x13, 0x00, 0x81, 0x00
 100 };
 101
 102 /* A skeleton used for sending messages to the sensor */
 103 static const unsigned char sensor_urb_skeleton[] = {
 104         0x23, M5602_XB_GPIO_EN_H, 0x81, 0x06,
 105         0x23, M5602_XB_MISC_CTRL, 0x81, 0x80,
 106         0x13, M5602_XB_I2C_DEV_ADDR, 0x81, 0x00,
 107         0x13, M5602_XB_I2C_REG_ADDR, 0x81, 0x00,
 108         0x13, M5602_XB_I2C_DATA, 0x81, 0x00,
 109         0x13, M5602_XB_I2C_CTRL, 0x81, 0x11
 110 };
 111
 112 struct sd {
 113         struct gspca_dev gspca_dev;
 114
 115         /* The name of the m5602 camera */
 116         char *name;
 117
 118         /* A pointer to the currently connected sensor */
 119         const struct m5602_sensor *sensor;
 120
 121         struct sd_desc *desc;
 122
 123         /* The current frame's id, used to detect frame boundaries */
 124         u8 frame_id;
 125
 126         /* The current frame count */
 127         u32 frame_count;
 128 };
 129
 130 int m5602_read_bridge(
 131         struct sd *sd, u8 address, u8 *i2c_data);
 132
 133 int m5602_write_bridge(
 134         struct sd *sd, u8 address, u8 i2c_data);
 135
 136 int m5602_write_sensor(struct sd *sd, const u8 address,
 137                        u8 *i2c_data, const u8 len);
 138
 139 int m5602_read_sensor(struct sd *sd, const u8 address,
 140                       u8 *i2c_data, const u8 len);
 141
 142 #endif