usbvideo_drv.c

mtk 6225平台的usb程序！ 对想了解mtk平台usb的朋友会有帮助！

/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2005
*
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*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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/*****************************************************************************
 *
 * Filename:
 * ---------
 *   usbvideo_drv.c
 *
 * Project:
 * --------
 *   Maui_Software
 *
 * Description:
 * ------------
 *   This file implements usb video class driver
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 *============================================================================
 ****************************************************************************/
 
#include "drv_comm.h"
#include "reg_base.h"
#include "intrCtrl.h"
#include "stack_common.h"
#include "stack_msgs.h"
#include "app_ltlcom.h"  
#include "app_buff_alloc.h"
#include "drvsignals.h"
#include "gpt_sw.h"

#include "usb_comm.h"
#include "usb_drv.h"
#include "usb.h"
#include "usb_resource.h"

#include "usbvideo_drv.h"
#include "usbvideo_state.h"
#include "usb_custom.h"
#include "usbvideo_if.h"
#include "usbvideo_custom.h"

/*This will be removed when change back to media task*/
#include "custom_config.h"

#ifdef WEBCAM_SUPPORT

USBVideo_Struct g_USBVideo;

/* static functions */
static void USBVideo_Set_Attr(void *data);
static void USBVideo_Set_ProbControl(void *data);
static void USBVideo_Set_Still_ProbControl(void *data);
static void USBVideo_Set_Still_ImageControl(void *data);/* take picture */
static void USBVideo_Ep0_VC_Command(Usb_Ep0_Status *pep0state, Usb_Command *pcmd);
static void USBVideo_Ep0_VS_Command(Usb_Ep0_Status *pep0state, Usb_Command *pcmd);
static void USBVideo_IntrIn_Reset(void);
static void USBVideo_BulkIn_Reset(void);
static void USBVideo_IntrIn_Hdlr(void );
static void USBVideo_Tx_Incall_DMA_Callback(void);
static void USBVideo_Tx_DMA_Callback(void);
static void USBVideo_ClearFeature_Callback(Usb_Command *pcmd); /*clear ep1's state */


/************************************************************
	Attribute tables
*************************************************************/

/* subtype lengths */
static const USBVideo_Attr_Sub_Map g_USBVideo_Focus_Map[] =
{
	{USBVIDEO_ATTR_FOCUS_SET, 1},
	{USBVIDEO_ATTR_FOCUS_SPEED, 1}	
};

static const USBVideo_Attr_Sub_Map g_USBVideo_Zoom_Map[] =
{
	{USBVIDEO_ATTR_ZOOM_ZOOM, 1},
	{USBVIDEO_ATTR_ZOOM_DIGITALZOOM, 1},
	{USBVIDEO_ATTR_ZOOM_SPEED, 1}
};

static const USBVideo_Attr_Sub_Map g_USBVideo_PanTilt_Ab_Map[] =
{
	{USBVIDEO_ATTR_AB_PANTILT_PAN, 4},
	{USBVIDEO_ATTR_AB_PANTILT_TILT, 4}
};

static const USBVideo_Attr_Sub_Map g_USBVideo_PanTilt_Re_Map[] =
{
	{USBVIDEO_ATTR_RE_PANTILT_PAN, 1},
	{USBVIDEO_ATTR_RE_PANTILT_PAN_SPEED, 1},
	{USBVIDEO_ATTR_RE_PANTILT_TILT, 1},
	{USBVIDEO_ATTR_RE_PANTILT_TILT_SPEED, 1}
};

static const USBVideo_Attr_Sub_Map g_USBVideo_Roll_Map[] =
{
	{USBVIDEO_ATTR_ROLL_SET, 1},
	{USBVIDEO_ATTR_ROLL_SPEED, 1}
};

static const USBVideo_Attr_Sub_Map g_USBVideo_AWB_Map[] =
{
	{USBVIDEO_ATTR_WHITE_BALANCE_BLUE, 2},
	{USBVIDEO_ATTR_WHITE_BALANCE_RED, 2}
};


/* CT attribute. Descriptor shift mapping table, attribute data length, and whether it has subtypes*/
static const USBVideo_Attr_Map g_USBVideo_CT_Attr_Map[] =  
{
	{USBVIDEO_ATTRIBUTE_SCANNING_MODE, 0, 1, NULL},
	{USBVIDEO_ATTRIBUTE_AE_MODE, 1, 1, NULL},
	{USBVIDEO_ATTRIBUTE_AE_PRIORITY, 2, 1, NULL},
	{USBVIDEO_ATTRIBUTE_EXP_TIME_ABSOLUTE, 3, 4, NULL},
	{USBVIDEO_ATTRIBUTE_EXP_TIME_RELATIVE, 4, 1, NULL},
	{USBVIDEO_ATTRIBUTE_FOCUS_ABSOLUTE, 5, 2, NULL},
	{USBVIDEO_ATTRIBUTE_FOCUS_RELATIVE, 6, 2, g_USBVideo_Focus_Map},
	{USBVIDEO_ATTRIBUTE_FOCUS_AUTO, 17, 1, NULL},
	{USBVIDEO_ATTRIBUTE_IRIS_ABSOLUTE, 7, 2, NULL},
	{USBVIDEO_ATTRIBUTE_IRIS_RELATIVE, 8, 1, NULL},
	{USBVIDEO_ATTRIBUTE_ZOOM_ABSOLUTE, 9, 2, NULL},
	{USBVIDEO_ATTRIBUTE_ZOOM_RELATIVE, 10, 3, g_USBVideo_Zoom_Map},
	{USBVIDEO_ATTRIBUTE_PANTILT_ABSOLUTE, 11, 8, g_USBVideo_PanTilt_Ab_Map},
	{USBVIDEO_ATTRIBUTE_PANTILT_RELATIVE, 12, 4, g_USBVideo_PanTilt_Re_Map},
	{USBVIDEO_ATTRIBUTE_ROLL_ABSOLUTE, 13, 2, NULL},
	{USBVIDEO_ATTRIBUTE_ROLL_RELATIVE, 14, 2, g_USBVideo_Roll_Map},
	{USBVIDEO_ATTRIBUTE_PRIVACY, 18, 1, NULL}
};

/* PU attribute. Descriptor shift mapping table, attribute data length, and whether it has subtypes*/
static const USBVideo_Attr_Map g_USBVideo_PU_Attr_Map[] =  
{
	{USBVIDEO_ATTRIBUTE_BACKLIGHT_COMPENSATION, 8, 2, NULL},
	{USBVIDEO_ATTRIBUTE_BRIGHTNESS, 0, 2, NULL},
	{USBVIDEO_ATTRIBUTE_CONTRAST, 1, 2, NULL},
	{USBVIDEO_ATTRIBUTE_GAIN, 9, 2, NULL},
	{USBVIDEO_ATTRIBUTE_POWER_LINE_FREQUENCY, 10, 1, NULL},
	{USBVIDEO_ATTRIBUTE_HUE, 2, 2, NULL},
	{USBVIDEO_ATTRIBUTE_SATURATION, 3, 2, NULL},
	{USBVIDEO_ATTRIBUTE_SHARPNESS, 4, 2, NULL},
	{USBVIDEO_ATTRIBUTE_GAMMA, 5, 2, NULL},
	{USBVIDEO_ATTRIBUTE_WHITE_BALANCE_TMP, 6, 2, NULL},
	{USBVIDEO_ATTRIBUTE_WHITE_BALANCE_TMP_AUTO, 12, 1, NULL},
	{USBVIDEO_ATTRIBUTE_WHITE_BALANCE_COMP, 7, 4, g_USBVideo_AWB_Map},
	{USBVIDEO_ATTRIBUTE_WHITE_BALANCE_COMP_AUTO, 13, 1, NULL},
	{USBVIDEO_ATTRIBUTE_DIGITAL_MULTIPLIER, 14, 2, NULL},
	{USBVIDEO_ATTRIBUTE_DIGITAL_MULTIPLIER_LIMIT, 15, 2, NULL},
	{USBVIDEO_ATTRIBUTE_HUE_AUTO, 11, 1, NULL}
	//{USBVIDEO_ATTRIBUTE_ANALOG_VIDEO_STANDARD, 16, 1, NULL},	/* for 1.1 version*/
	//{USBVIDEO_ATTRIBUTE_ANALOG_LOCK_STATUS, 17, 1, NULL}
};

/* Used to store the attributes(may be come from multiple set confirm), and gather them all,
    return to host at one time */
static kal_uint8 g_USBVideo_Attr_Value[USBVIDEO_MAX_ATTR_VALUE_SIZE];	


/************************************************************
	utility functions
*************************************************************/
static kal_uint32 USBVideo_Get_Max(kal_uint32 value1, kal_uint32 value2)
{
	if(value1>=value2)
		return value1;
	else
		return value2;
}


/************************************************************
	Send message function used by the whole video class driver 
*************************************************************/

void USBVideo_Send_Msg(USBVIDEO_MSG_TYPE msg_type, kal_uint32 param1, kal_uint32 param2)
{
	usbvideo_video_size_struct *start_cnf;