181 lines
5 KiB
C
181 lines
5 KiB
C
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/*
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* USB Driver for ALi m5602 based webcams
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*
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* Copyright (C) 2008 Erik Andren
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* Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
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* Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
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*
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* Portions of code to USB interface and ALi driver software,
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* Copyright (c) 2006 Willem Duinker
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* v4l2 interface modeled after the V4L2 driver
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* for SN9C10x PC Camera Controllers
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#ifndef M5602_BRIDGE_H_
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#define M5602_BRIDGE_H_
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#include "gspca.h"
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#define MODULE_NAME "ALi m5602"
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/*****************************************************************************/
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#undef PDEBUG
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#undef info
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#undef err
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#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
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format "\n" , ## arg)
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#define info(format, arg...) printk(KERN_INFO KBUILD_MODNAME ": " \
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format "\n" , ## arg)
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/* Debug parameters */
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#define DBG_INIT 0x1
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#define DBG_PROBE 0x2
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#define DBG_V4L2 0x4
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#define DBG_TRACE 0x8
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#define DBG_DATA 0x10
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#define DBG_V4L2_CID 0x20
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#define DBG_GSPCA 0x40
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#define PDEBUG(level, fmt, args...) \
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do { \
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if (m5602_debug & level) \
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info("[%s:%d] " fmt, __func__, __LINE__ , \
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## args); \
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} while (0)
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/*****************************************************************************/
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#define M5602_XB_SENSOR_TYPE 0x00
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#define M5602_XB_SENSOR_CTRL 0x01
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#define M5602_XB_LINE_OF_FRAME_H 0x02
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#define M5602_XB_LINE_OF_FRAME_L 0x03
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#define M5602_XB_PIX_OF_LINE_H 0x04
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#define M5602_XB_PIX_OF_LINE_L 0x05
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#define M5602_XB_VSYNC_PARA 0x06
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#define M5602_XB_HSYNC_PARA 0x07
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#define M5602_XB_TEST_MODE_1 0x08
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#define M5602_XB_TEST_MODE_2 0x09
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#define M5602_XB_SIG_INI 0x0a
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#define M5602_XB_DS_PARA 0x0e
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#define M5602_XB_TRIG_PARA 0x0f
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#define M5602_XB_CLK_PD 0x10
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#define M5602_XB_MCU_CLK_CTRL 0x12
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#define M5602_XB_MCU_CLK_DIV 0x13
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#define M5602_XB_SEN_CLK_CTRL 0x14
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#define M5602_XB_SEN_CLK_DIV 0x15
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#define M5602_XB_AUD_CLK_CTRL 0x16
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#define M5602_XB_AUD_CLK_DIV 0x17
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#define M5602_XB_DEVCTR1 0x41
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#define M5602_XB_EPSETR0 0x42
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#define M5602_XB_EPAFCTR 0x47
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#define M5602_XB_EPBFCTR 0x49
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#define M5602_XB_EPEFCTR 0x4f
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#define M5602_XB_TEST_REG 0x53
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#define M5602_XB_ALT2SIZE 0x54
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#define M5602_XB_ALT3SIZE 0x55
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#define M5602_XB_OBSFRAME 0x56
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#define M5602_XB_PWR_CTL 0x59
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#define M5602_XB_ADC_CTRL 0x60
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#define M5602_XB_ADC_DATA 0x61
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#define M5602_XB_MISC_CTRL 0x62
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#define M5602_XB_SNAPSHOT 0x63
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#define M5602_XB_SCRATCH_1 0x64
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#define M5602_XB_SCRATCH_2 0x65
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#define M5602_XB_SCRATCH_3 0x66
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#define M5602_XB_SCRATCH_4 0x67
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#define M5602_XB_I2C_CTRL 0x68
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#define M5602_XB_I2C_CLK_DIV 0x69
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#define M5602_XB_I2C_DEV_ADDR 0x6a
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#define M5602_XB_I2C_REG_ADDR 0x6b
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#define M5602_XB_I2C_DATA 0x6c
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#define M5602_XB_I2C_STATUS 0x6d
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#define M5602_XB_GPIO_DAT_H 0x70
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#define M5602_XB_GPIO_DAT_L 0x71
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#define M5602_XB_GPIO_DIR_H 0x72
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#define M5602_XB_GPIO_DIR_L 0x73
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#define M5602_XB_GPIO_EN_H 0x74
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#define M5602_XB_GPIO_EN_L 0x75
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#define M5602_XB_GPIO_DAT 0x76
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#define M5602_XB_GPIO_DIR 0x77
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#define M5602_XB_MISC_CTL 0x70
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#define I2C_BUSY 0x80
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/*****************************************************************************/
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/* Driver info */
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#define DRIVER_AUTHOR "ALi m5602 Linux Driver Project"
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#define DRIVER_DESC "ALi m5602 webcam driver"
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#define M5602_ISOC_ENDPOINT_ADDR 0x81
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#define M5602_INTR_ENDPOINT_ADDR 0x82
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#define M5602_MAX_FRAMES 32
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#define M5602_URBS 2
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#define M5602_ISOC_PACKETS 14
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#define M5602_URB_TIMEOUT msecs_to_jiffies(2 * M5602_ISOC_PACKETS)
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#define M5602_URB_MSG_TIMEOUT 5000
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#define M5602_FRAME_TIMEOUT 2
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/*****************************************************************************/
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/* A skeleton used for sending messages to the m5602 bridge */
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static const unsigned char bridge_urb_skeleton[] = {
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0x13, 0x00, 0x81, 0x00
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};
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/* A skeleton used for sending messages to the sensor */
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static const unsigned char sensor_urb_skeleton[] = {
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0x23, M5602_XB_GPIO_EN_H, 0x81, 0x06,
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0x23, M5602_XB_MISC_CTRL, 0x81, 0x80,
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0x13, M5602_XB_I2C_DEV_ADDR, 0x81, 0x00,
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0x13, M5602_XB_I2C_REG_ADDR, 0x81, 0x00,
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0x13, M5602_XB_I2C_DATA, 0x81, 0x00,
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0x13, M5602_XB_I2C_CTRL, 0x81, 0x11
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};
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/* m5602 device descriptor, currently it just wraps the m5602_camera struct */
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struct sd {
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struct gspca_dev gspca_dev;
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/* The name of the m5602 camera */
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char *name;
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/* A pointer to the currently connected sensor */
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struct m5602_sensor *sensor;
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/* The current frame's id, used to detect frame boundaries */
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u8 frame_id;
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/* The current frame count */
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u32 frame_count;
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};
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int m5602_read_bridge(
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struct sd *sd, u8 address, u8 *i2c_data);
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int m5602_write_bridge(
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struct sd *sd, u8 address, u8 i2c_data);
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int m5602_configure(struct gspca_dev *gspca_dev,
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const struct usb_device_id *id);
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int m5602_init(struct gspca_dev *gspca_dev);
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void m5602_start_transfer(struct gspca_dev *gspca_dev);
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void m5602_stop_transfer(struct gspca_dev *gspca_dev);
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void m5602_urb_complete(struct gspca_dev *gspca_dev, struct gspca_frame *frame,
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__u8 *data, int len);
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#endif
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