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cycx3_uvc.c
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cycx3_uvc.c
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/*
## Cypress CX3 Firmware Example Source (cycx3_uvc.c)
## ===========================
##
## Copyright Cypress Semiconductor Corporation, 2013-2014,
## All Rights Reserved
## UNPUBLISHED, LICENSED SOFTWARE.
##
## CONFIDENTIAL AND PROPRIETARY INFORMATION
## WHICH IS THE PROPERTY OF CYPRESS.
##
## Use of this file is governed
## by the license agreement included in the file
##
## <install>/license/license.txt
##
## where <install> is the Cypress software
## installation root directory path.
##
## ===========================
*/
/* This application example implemnets a USB UVC 1.1 compliant video camera on the CX3 using an
* Omnivision OV5640 image sensor. The example supports the following video formats:
* 1. Uncompressed 16 bit YUV2 2952x1944 @15 fps over USB SuperSpeed
* 2. Uncompressed 16 bit YUV2 1920x1080 @30 fps over USB SuperSpeed
* 3. Uncompressed 16 bit YUV2 1280x720 @60 fps over USB SuperSpeed
* 4. Uncompressed 16 bit YUV2 640x480 @60 fps over USB Hi-Speed
* 5. Uncompressed 16 bit YUV2 640x480 @30 fps over USB Hi-Speed
* 6. Uncompressed 16 bit YUV2 320x240 @5 fps over USB Full Speed
*/
#include "cyu3system.h"
#include "cyu3os.h"
#include "cyu3dma.h"
#include "cyu3error.h"
#include "cyu3usb.h"
#include "cyu3i2c.h"
#include "cyu3uart.h"
#include "cyu3gpio.h"
#include "cyu3utils.h"
#include "cyu3pib.h"
#include "cyu3socket.h"
#include "sock_regs.h"
#include "cycx3_uvc.h"
#include "cyu3mipicsi.h"
#include "cyu3imagesensor.h"
#include "cycx3_m10mo.h"
static CyU3PThread cx3AppThread; /* Application thread used for streaming from the MIPI interface to USB */
static CyU3PEvent glCx3Event; /* Application Event Group */
#ifdef CX3_ERROR_THREAD_ENABLE
static CyU3PThread cx3MipiErrorThread; /* Thread used to poll the MIPI interface for Mipi bus errors */
static CyU3PEvent glMipiErrorEvent; /* Application Event Group */
#endif
static volatile uint32_t glDMATxCount = 0; /* Counter used to count the Dma Transfers */
static volatile uint32_t glDmaDone = 0;
static volatile uint8_t glActiveSocket = 0; /* Active Socket Tracker */
static CyBool_t glHitFV = CyFalse; /* Flag used for state of FV signal. */
static CyBool_t glMipiActive = CyFalse; /* Flag set to true whin Mipi interface is active. Used for Suspend/Resume. */
static CyBool_t glIsClearFeature = CyFalse; /* Flag to signal when AppStop is called from the ClearFeature request. Needed
to clear endpoint data toggles. */
static volatile CyBool_t glLpmDisable = CyTrue;/* Flag used to Enable/Disable low USB LPM (both USB 3.0 and 2.0) */
/* UVC Header */
static uint8_t glUVCHeader[CX3_APP_HEADER_LENGTH] =
{
0x0C, /* Header Length */
0x8C, /* Bit field header field */
0x00,0x00,0x00,0x00, /* Presentation time stamp field */
0x00,0x00,0x00,0x00,0x00,0x00 /* Source clock reference field */
};
static uint8_t glCurrentFrameIndex = 1; /* Current Frame Index */
static CyU3PDmaMultiChannel glChHandleUVCStream; /* DMA Channel Handle for UVC Stream */
static CyBool_t glIsApplnActive = CyFalse; /* Whether the Mipi->USB application is active or not. */
static CyBool_t glIsConfigured = CyFalse; /* Whether Application is in configured state or not */
static CyBool_t glIsStreamingStarted = CyFalse; /* Whether streaming has started - Used for MAC OS support*/
/* Video Probe Commit Control */
static uint8_t glCommitCtrl[CX3_APP_MAX_PROBE_SETTING_ALIGNED];
#ifdef RESET_TIMER_ENABLE
static CyU3PTimer Cx3ResetTimer; /* Timer used to track frame transfer time. */
static void
CyCx3AppProgressTimer (
uint32_t arg)
{
/* This frame has taken too long to complete. Notify the thread to abort the frame and restart streaming. */
CyU3PEventSet(&glCx3Event, CX3_DMA_RESET_EVENT,CYU3P_EVENT_OR);
}
#endif
#ifdef STILL_CAPTURE_ENABLE
static CyU3PEvent glStillImageEvent; /*Still image event group. */
static uint8_t glStillReq = 0; /*Still Trigger Control Array*/
static uint8_t glStillFrameIndex = 1; /*Frame Index for Still Capture*/
static CyBool_t glStillFlag = CyFalse; /*Still Image Event Flag*/
static uint8_t glStillCommitCtrl[CX3_APP_MAX_PROBE_SETTING_ALIGNED]; /*Still Commit Control Array*/
/* Still Probe Control Setting */
uint8_t glStillProbeCtrl[CX3_APP_MAX_STILL_PROBE_SETTING] =
{
0x01, /* Use 1st Video format index */
0x01, /* Use 1st Video frame index */
0x00, /* Compression quality */
0x00, 0xC6, 0x99, 0x00, /* Max video frame size in bytes (Highest resolution - 5MP frame size) */
0x00, 0x80, 0x00, 0x00 /* No. of bytes device can rx in single payload = 16KB */
};
#endif
/* Application critical error handler */
void
CyCx3AppErrorHandler (
CyU3PReturnStatus_t status /* API return status */
)
{
/* Application failed with the error code status */
/* Add custom debug or recovery actions here */
/* Loop indefinitely */
for (;;)
{
/* Thread sleep : 100 ms */
CyU3PThreadSleep (100);
}
}
/* UVC header addition function */
static void
CyCx3AppAddHeader (
uint8_t *buffer_p, /* Buffer pointer */
uint8_t frameInd /* EOF or normal frame indication */
)
{
/* Copy header to buffer */
CyU3PMemCopy (buffer_p, (uint8_t *)glUVCHeader, CX3_APP_HEADER_LENGTH);
/* Check if last packet of the frame. */
if (frameInd == CX3_APP_HEADER_EOF)
{
/* Modify UVC header to toggle Frame ID */
glUVCHeader[1] ^= CX3_APP_HEADER_FRAME_ID;
/* Indicate End of Frame in the buffer */
buffer_p[1] |= CX3_APP_HEADER_EOF;
}
}
/* This function starts the video streaming application. It is called
* when there is a SET_INTERFACE event for alternate interface 1
* (in case of UVC over Isochronous Endpoint usage) or when a
* COMMIT_CONTROL(SET_CUR) request is received (when using BULK only UVC).
*/
CyU3PReturnStatus_t
CyCx3AppStart (
void)
{
#ifdef CX3_DEBUG_ENABLED
uint8_t SMState = 0;
#endif
CyU3PReturnStatus_t status = CY_U3P_SUCCESS;
glIsApplnActive = CyTrue;
glDmaDone = 0;
glDMATxCount = 0;
glHitFV = CyFalse;
glLpmDisable = CyTrue;
#ifdef RESET_TIMER_ENABLE
CyU3PTimerStop (&Cx3ResetTimer);
#endif
/* Place the EP in NAK mode before cleaning up the pipe. */
CyU3PUsbSetEpNak (CX3_EP_BULK_VIDEO, CyTrue);
CyU3PBusyWait (100);
/* Reset USB EP and DMA */
CyU3PUsbFlushEp(CX3_EP_BULK_VIDEO);
status = CyU3PDmaMultiChannelReset (&glChHandleUVCStream);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4,"\n\rAplnStrt:ChannelReset Err = 0x%x", status);
return status;
}
status = CyU3PDmaMultiChannelSetXfer (&glChHandleUVCStream, 0, 0);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rAplnStrt:SetXfer Err = 0x%x", status);
return status;
}
CyU3PUsbSetEpNak (CX3_EP_BULK_VIDEO, CyFalse);
CyU3PBusyWait (200);
/* Resume the Fixed Function GPIF State machine */
CyU3PGpifSMControl(CyFalse);
glActiveSocket = 0;
CyU3PGpifSMSwitch(CX3_INVALID_GPIF_STATE, CX3_START_SCK0,
CX3_INVALID_GPIF_STATE, ALPHA_CX3_START_SCK0, CX3_GPIF_SWITCH_TIMEOUT);
CyU3PThreadSleep (10);
#ifdef CX3_DEBUG_ENABLED
CyU3PGpifGetSMState(&SMState);
CyU3PDebugPrint (4, "\n\rAplnStrt:SMState = 0x%x",SMState);
#endif
/* Wake Mipi interface and Image Sensor */
CyU3PMipicsiWakeup();
CyCx3_ImageSensor_Wakeup();
glMipiActive = CyTrue;
// CyCx3_ImageSensor_Trigger_Autofocus();
M10MO_ColorBar_Output();
return CY_U3P_SUCCESS;
}
/* This function stops the video streaming. It is called from the USB event
* handler, when there is a reset / disconnect or SET_INTERFACE for alternate
* interface 0 in case of ischronous implementation or when a Clear Feature (Halt)
* request is recieved (in case of bulk only implementation).
*/
void
CyCx3AppStop (
void)
{
#ifdef CX3_DEBUG_ENABLED
uint8_t SMState = 0;
#endif
/* Stop the image sensor and CX3 mipi interface */
CyU3PMipicsiSleep();
CyCx3_ImageSensor_Sleep();
glMipiActive = CyFalse;
#ifdef RESET_TIMER_ENABLE
CyU3PTimerStop (&Cx3ResetTimer);
#endif
#ifdef CX3_DEBUG_ENABLED
CyU3PGpifGetSMState(&SMState);
CyU3PDebugPrint (4, "\n\rAplnStop:SMState = 0x%x",SMState);
#endif
/* Pause the GPIF interface*/
CyU3PGpifSMControl(CyTrue);
/* Update the flag so that the application thread is notified of this. */
glIsApplnActive = CyFalse;
CyU3PUsbSetEpNak (CX3_EP_BULK_VIDEO, CyTrue);
CyU3PBusyWait (100);
/* Abort and destroy the video streaming channel */
/* Reset the channel: Set to DSCR chain starting point in PORD/CONS SCKT; set DSCR_SIZE field in DSCR memory*/
CyU3PDmaMultiChannelReset(&glChHandleUVCStream);
CyU3PThreadSleep(25);
/* Flush the endpoint memory */
CyU3PUsbFlushEp(CX3_EP_BULK_VIDEO);
CyU3PUsbSetEpNak (CX3_EP_BULK_VIDEO, CyFalse);
CyU3PBusyWait (200);
/* Clear the stall condition and sequence numbers if ClearFeature. */
if (glIsClearFeature)
{
CyU3PUsbStall (CX3_EP_BULK_VIDEO, CyFalse, CyTrue);
glIsClearFeature = CyFalse;
}
glDMATxCount = 0;
glDmaDone = 0;
/* Enable USB 3.0 LPM */
CyU3PUsbLPMEnable ();
}
/* GpifCB callback function is invoked when FV triggers GPIF interrupt */
void
CyCx3AppGpifCB (
CyU3PGpifEventType event,
uint8_t currentState
)
{
CyU3PReturnStatus_t status = CY_U3P_SUCCESS;
/* Handle interrupt from the State Machine */
if (event == CYU3P_GPIF_EVT_SM_INTERRUPT)
{
switch (currentState)
{
case CX3_PARTIAL_BUFFER_IN_SCK0:
{
/* Wrapup Socket 0*/
status = CyU3PDmaMultiChannelSetWrapUp (&glChHandleUVCStream, 0);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rGpifCB:WrapUp SCK0 Err = 0x%x", status);
}
}
break;
case CX3_PARTIAL_BUFFER_IN_SCK1:
{
/* Wrapup Socket 1 */
status = CyU3PDmaMultiChannelSetWrapUp (&glChHandleUVCStream, 1);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rGpifCB:WrapUp SCK1 Err = 0x%x", status);
}
}
break;
default:
break;
}
}
}
/* DMA callback function to handle the produce and consume events. */
void
CyCx3AppDmaCallback (
CyU3PDmaMultiChannel *chHandle,
CyU3PDmaCbType_t type,
CyU3PDmaCBInput_t *input
)
{
CyU3PDmaBuffer_t dmaBuffer;
CyU3PReturnStatus_t status = CY_U3P_SUCCESS;
if (type == CY_U3P_DMA_CB_PROD_EVENT)
{
/* This is a produce event notification to the CPU. This notification is
* received upon reception of every buffer. The buffer will not be sent
* out unless it is explicitly committed. The call shall fail if there
* is a bus reset / usb disconnect or if there is any application error. */
/* Disable USB LPM while Buffer is being transmitted out*/
if (glLpmDisable)
{
glLpmDisable = CyFalse;
CyU3PUsbLPMDisable ();
/* Make sure the USB link is brought back to an active state. */
if (CyU3PUsbGetSpeed () == CY_U3P_SUPER_SPEED)
{
CyU3PUsbSetLinkPowerState (CyU3PUsbLPM_U0);
CyU3PBusyWait (200);
}
else
{
CyU3PUsb2Resume ();
}
#ifdef RESET_TIMER_ENABLE
CyU3PTimerStart (&Cx3ResetTimer);
#endif
}
status = CyU3PDmaMultiChannelGetBuffer(chHandle, &dmaBuffer, CYU3P_NO_WAIT);
while (status == CY_U3P_SUCCESS)
{
/* Add Headers*/
if(dmaBuffer.count < CX3_APP_DATA_BUF_SIZE)
{
CyCx3AppAddHeader ((dmaBuffer.buffer - CX3_APP_PROD_HEADER), CX3_APP_HEADER_EOF);
glHitFV = CyTrue;
}
else
{
CyCx3AppAddHeader ((dmaBuffer.buffer - CX3_APP_PROD_HEADER), CX3_APP_HEADER_FRAME);
}
/* Commit Buffer to USB*/
status = CyU3PDmaMultiChannelCommitBuffer (chHandle, (dmaBuffer.count + 12), 0);
if (status != CY_U3P_SUCCESS)
{
CyU3PEventSet(&glCx3Event, CX3_DMA_RESET_EVENT,CYU3P_EVENT_OR);
break;
}
else
{
glDMATxCount++;
glDmaDone++;
}
/* Toggle the Active Socket */
glActiveSocket ^= 1;
status = CyU3PDmaMultiChannelGetBuffer(chHandle, &dmaBuffer, CYU3P_NO_WAIT);
}
}
else if(type == CY_U3P_DMA_CB_CONS_EVENT)
{
glDmaDone--;
glIsStreamingStarted = CyTrue;
/* Check if Frame is completely transferred */
if ((glHitFV == CyTrue) && (glDmaDone == 0))
{
glHitFV = CyFalse;
glDMATxCount=0;
#ifdef RESET_TIMER_ENABLE
CyU3PTimerStop (&Cx3ResetTimer);
#endif
if (glActiveSocket)
CyU3PGpifSMSwitch(CX3_INVALID_GPIF_STATE, CX3_START_SCK1,
CX3_INVALID_GPIF_STATE, ALPHA_CX3_START_SCK1, CX3_GPIF_SWITCH_TIMEOUT);
else
CyU3PGpifSMSwitch(CX3_INVALID_GPIF_STATE, CX3_START_SCK0,
CX3_INVALID_GPIF_STATE, ALPHA_CX3_START_SCK0, CX3_GPIF_SWITCH_TIMEOUT);
CyU3PUsbLPMEnable ();
glLpmDisable = CyTrue;
#ifdef RESET_TIMER_ENABLE
CyU3PTimerModify (&Cx3ResetTimer, TIMER_PERIOD, 0);
#endif
#ifdef STILL_CAPTURE_ENABLE
if(glStillFlag==CyTrue)
{
CyU3PDebugPrint(4,"Frame complete\n\r");
CyU3PEventSet(&glStillImageEvent, CX3_STILL_IMAGE_EVENT, CYU3P_EVENT_OR);
}
#endif
}
}
}
/* This is the Callback function to handle the USB Events */
static void
CyCx3AppUSBEventCB (
CyU3PUsbEventType_t evtype, /* Event type */
uint16_t evdata /* Event data */
)
{
uint8_t interface = 0, altSetting = 0;
switch (evtype)
{
case CY_U3P_USB_EVENT_SUSPEND:
/* Suspend the device with Wake On Bus Activity set */
glIsStreamingStarted = CyFalse;
CyU3PEventSet (&glCx3Event, CX3_USB_SUSP_EVENT_FLAG, CYU3P_EVENT_OR);
break;
case CY_U3P_USB_EVENT_SETINTF:
/* Start the video streamer application if the
* interface requested was 1. If not, stop the
* streamer. */
interface = CY_U3P_GET_MSB(evdata);
altSetting = CY_U3P_GET_LSB(evdata);
#if CX3_DEBUG_ENABLED
CyU3PDebugPrint(4,"\n\rUsbCB: IF = %d, ALT = %d", interface, altSetting);
#endif
glIsStreamingStarted = CyFalse;
if ((altSetting == CX3_APP_STREAM_INTERFACE) && (interface == 1))
{
/* Stop the application before re-starting. */
if (glIsApplnActive)
{
#if CX3_DEBUG_ENABLED
CyU3PDebugPrint (4, "\n\rUsbCB:Call AppStop");
#endif
CyCx3AppStop ();
}
CyCx3AppStart ();
break;
}
/* Intentional Fall-through all cases */
case CY_U3P_USB_EVENT_SETCONF:
case CY_U3P_USB_EVENT_RESET:
case CY_U3P_USB_EVENT_DISCONNECT:
case CY_U3P_USB_EVENT_CONNECT:
glIsStreamingStarted = CyFalse;
if (evtype == CY_U3P_USB_EVENT_SETCONF)
glIsConfigured = CyTrue;
else
glIsConfigured = CyFalse;
/* Stop the video streamer application and enable LPM. */
CyU3PUsbLPMEnable ();
if (glIsApplnActive)
{
#if CX3_DEBUG_ENABLED
CyU3PDebugPrint (4, "\n\rUsbCB:Call AppStop");
#endif
CyCx3AppStop ();
}
break;
default:
break;
}
}
/* Callback for LPM requests. Always return true to allow host to transition device
* into required LPM state U1/U2/U3. When data trasmission is active LPM management
* is explicitly desabled to prevent data transmission errors.
*/
static CyBool_t
CyCx3AppLPMRqtCB (
CyU3PUsbLinkPowerMode link_mode /*USB 3.0 linkmode requested by Host */
)
{
return CyTrue;
}
#ifdef STILL_CAPTURE_ENABLE
/* Set the still image resolutions through this function. This function lists all the
* supported resolutions in SuperSpeed and HighSpeed. The frame index of resolutions
* supported in Still Capture can be different from the frame index of resolutions supported
* in Video streaming.
*/
static void
CyCx3AppImageSensorSetStillResolution(
uint8_t resolution_index
)
{
CyU3PReturnStatus_t status = CY_U3P_SUCCESS;
switch (CyU3PUsbGetSpeed ())
{
case CY_U3P_SUPER_SPEED:
{
switch (resolution_index)
{
case 0x01:
{
status = CyU3PMipicsiSetIntfParams (&cfgUvc5Mp15NoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams SS2 Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_5M();
}
break;
case 0x02:
{
/* Write 1080pSettings */
status = CyU3PMipicsiSetIntfParams (&cfgUvc1080p30NoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams SS1 Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_1080p ();
}
break;
case 0x03:
{
/* Write 720pSettings */
status = CyU3PMipicsiSetIntfParams (&cfgUvc720p60NoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams SS2 Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_720p();
}
break;
case 0x04:
{
/* Write VGA Settings */
status = CyU3PMipicsiSetIntfParams (&cfgUvcVgaNoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams HS Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_Vga();
}
break;
default:
break;
}
}
break;
case CY_U3P_HIGH_SPEED:
switch (resolution_index)
{
case 0x01:
{
/* Write VGA Settings */
status = CyU3PMipicsiSetIntfParams (&cfgUvcVgaNoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams HS Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_Vga();
}
break;
}
break;
default:
{
/* Full speed stream. */
/* Write VGA Settings */
status = CyU3PMipicsiSetIntfParams (&cfgUvcVgaNoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams FS Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_Vga();
}
break;
}
}
#endif
/* Set the video resolution through this function. This function lists all the
* supported resolutions in SuperSpeed and HighSpeed. The frame index of resolutions
* supported in Still Capture can be different from the frame index of resolutions supported
* in Video streaming.
*/
static void
CyCx3AppImageSensorSetVideoResolution(
uint8_t resolutionIndex
)
{
CyU3PReturnStatus_t status = CY_U3P_SUCCESS;
switch (CyU3PUsbGetSpeed ())
{
case CY_U3P_SUPER_SPEED:
{
switch (resolutionIndex)
{
case 0x01:
{
/* Write 1080pSettings */
status = CyU3PMipicsiSetIntfParams (&cfgUvc1080p30NoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams SS1 Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_1080p ();
}
break;
case 0x02:
{
status = CyU3PMipicsiSetIntfParams (&cfgUvc5Mp15NoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams SS2 Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_5M();
}
break;
case 0x03:
{
/* Write 720pSettings */
status = CyU3PMipicsiSetIntfParams (&cfgUvc720p60NoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams SS2 Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_720p();
}
break;
case 0x04:
{
/* Write VGA Settings */
status = CyU3PMipicsiSetIntfParams (&cfgUvcVgaNoMclk, CyTrue);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams HS Err = 0x%x", status);
}
CyU3PDebugPrint (4, "\n\rEnter set vga", status);
// CyCx3_ImageSensor_Set_Vga();
CyCx3_M10MO_Set_UYVY_VGA_USB3 ();
}
break;
}
}
break;
case CY_U3P_HIGH_SPEED:
{
switch (resolutionIndex)
{
case 0x01:
{
/* Write VGA Settings */
status = CyU3PMipicsiSetIntfParams (&cfgUvcVgaNoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams HS Err = 0x%x", status);
}
CyCx3_ImageSensor_Set_Vga();
}
break;
}
}
break;
default:
{
/* Full speed stream. */
/* Write VGA Settings */
status = CyU3PMipicsiSetIntfParams (&cfgUvcVgaNoMclk, CyFalse);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSBStpCB:SetIntfParams FS Err = 0x%x", status);
}
CyCx3_M10MO_Set_UYVY_VGA_USB3();
}
break;
}
}
/* Handles the Probe Control and Commit Control UVC requests. */
static void
CyCx3AppHandleSetCurReq (
uint16_t wValue
)
{
CyU3PReturnStatus_t status;
uint16_t readCount = 0;
/* Get the UVC probe/commit control data from EP0 */
status = CyU3PUsbGetEP0Data(CX3_APP_MAX_PROBE_SETTING_ALIGNED, glCommitCtrl, &readCount);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSB Setup CB:SET_CUR:GetEP0Data Err = 0x%x", status);
return;
}
/* Check the read count. Expecting a count of CX3_APP_MAX_PROBE_SETTING bytes. */
if (readCount > (uint16_t)CX3_APP_MAX_PROBE_SETTING)
{
CyU3PDebugPrint (4, "\n\rUSB Setup CB:Invalid SET_CUR Rqt Len");
return;
}
/* Set Probe Control */
if (wValue == CX3_APP_VS_PROBE_CONTROL)
{
glCurrentFrameIndex = glCommitCtrl[3];
}
else
{
/* Set Commit Control and Start Streaming*/
if (wValue == CX3_APP_VS_COMMIT_CONTROL)
{
CyCx3AppImageSensorSetVideoResolution (glCommitCtrl[3]);
if (glIsApplnActive)
{
#ifdef CX3_DEBUG_ENABLED
CyU3PDebugPrint (4, "\n\rUSB Setup CB:Call AppSTOP1");
#endif
CyCx3AppStop();
}
CyCx3AppStart();
}
}
}
/*Returns the pointer to the Probe Control structure for the corresponding frame index.*/
uint8_t *
CyCx3AppGetProbeControlData (
CyU3PUSBSpeed_t usbConType,
uint8_t frameIndex
)
{
if (usbConType == CY_U3P_SUPER_SPEED)
{
if (frameIndex == 1)
{
/* 1920 x 1080 @30 fps */
return ((uint8_t *) gl1080pProbeCtrl);
}
else if (frameIndex == 2)
{
/* 2952 x 1944 @15 fps */
return ((uint8_t *)gl5MpProbeCtrl);
}
else if (frameIndex == 3)
{
/* 1280 x 720 @60 fps */
return ((uint8_t *) gl720pProbeCtrl);
}
else if (frameIndex == 4)
{
/* 640 x 480 @30 fps */
return ((uint8_t *)glVga30ProbeCtrl);
}
}
else if (usbConType == CY_U3P_HIGH_SPEED)
{
if (frameIndex == 1)
{
/* 640 x 480 @30 fps */
return ((uint8_t *)glVga30ProbeCtrl_HS);
}
else if (frameIndex == 2)
{
/* 640 x 480 @60 fps */
return ((uint8_t *)glVga60ProbeCtrl);
}
}
else
{
if (frameIndex == 1)
{
/* 640 x 480 @5 fps */
return ((uint8_t *)glVga30ProbeCtrl);
}
}
return NULL;
}
/* Callback to handle the USB Setup Requests and UVC Class events */
static CyBool_t
CyCx3AppUSBSetupCB (
uint32_t setupdat0, /* SETUP Data 0 */
uint32_t setupdat1 /* SETUP Data 1 */
)
{
CyU3PReturnStatus_t status = CY_U3P_SUCCESS;
uint8_t bRequest, bType,bRType, bTarget;
uint16_t wValue, wIndex;
uint8_t ep0Buf[2];
uint8_t temp = 0;
CyBool_t isHandled = CyFalse;
uint8_t *ctrl_src = 0;
#ifdef STILL_CAPTURE_ENABLE
uint32_t eventFlag;
uint16_t readCount = 0;
#endif
#if CX3_DEBUG_ENABLED
uint16_t wLength;
#endif
/* Decode the fields from the setup request. */
bRType = (setupdat0 & CY_U3P_USB_REQUEST_TYPE_MASK);
bType = (bRType & CY_U3P_USB_TYPE_MASK);
bTarget = (bRType & CY_U3P_USB_TARGET_MASK);
bRequest = ((setupdat0 & CY_U3P_USB_REQUEST_MASK) >> CY_U3P_USB_REQUEST_POS);
wValue = ((setupdat0 & CY_U3P_USB_VALUE_MASK) >> CY_U3P_USB_VALUE_POS);
wIndex = ((setupdat1 & CY_U3P_USB_INDEX_MASK) >> CY_U3P_USB_INDEX_POS);
#if CX3_DEBUG_ENABLED
wLength = ((setupdat1 & CY_U3P_USB_LENGTH_MASK) >> CY_U3P_USB_LENGTH_POS);
CyU3PDebugPrint(4, "\n\rbRType = 0x%x, bRequest = 0x%x, wValue = 0x%x, wIndex = 0x%x, wLength= 0x%x",
bRType, bRequest, wValue, wIndex, wLength);
#endif
/* ClearFeature(Endpoint_Halt) received on the Streaming Endpoint. Stop Streaming */
if((bTarget == CY_U3P_USB_TARGET_ENDPT) && (bRequest == CY_U3P_USB_SC_CLEAR_FEATURE)
&& (wIndex == CX3_EP_BULK_VIDEO) && (wValue == CY_U3P_USBX_FS_EP_HALT))
{
if ((glIsApplnActive) && (glIsStreamingStarted))
{
glIsClearFeature = CyTrue;
CyCx3AppStop();
}
return CyFalse;
}
if(bRType == CY_U3P_USB_GS_DEVICE)
{
/* Make sure that we bring the link back to U0, so that the ERDY can be sent. */
if (CyU3PUsbGetSpeed () == CY_U3P_SUPER_SPEED)
CyU3PUsbSetLinkPowerState (CyU3PUsbLPM_U0);
}
if ((bTarget == CY_U3P_USB_TARGET_INTF) && ((bRequest == CY_U3P_USB_SC_SET_FEATURE)
|| (bRequest == CY_U3P_USB_SC_CLEAR_FEATURE)) && (wValue == 0))
{
#if CX3_DEBUG_ENABLED
CyU3PDebugPrint (4, "\n\rStpCB:In SET_FTR %d::%d", glIsApplnActive, glIsConfigured);
#endif
if (glIsConfigured)
{
CyU3PUsbAckSetup ();
}
else
{
CyU3PUsbStall (0, CyTrue, CyFalse);
}
return CyTrue;
}
if ((bRequest == CY_U3P_USB_SC_GET_STATUS) && (bTarget == CY_U3P_USB_TARGET_INTF))
{
/* We support only interface 0. */
if (wIndex == 0)
{
ep0Buf[0] = 0;
ep0Buf[1] = 0;
CyU3PUsbSendEP0Data (0x02, ep0Buf);
}
else
CyU3PUsbStall (0, CyTrue, CyFalse);
return CyTrue;
}
/* Check for UVC Class Requests */
if (bType == CY_U3P_USB_CLASS_RQT)
{
/* Requests to the Video Streaming Interface (IF 1) */
if ((CY_U3P_GET_LSB (wIndex)) == CX3_APP_STREAM_INTERFACE)
{
if((wValue == CX3_APP_VS_PROBE_CONTROL) || (wValue == CX3_APP_VS_COMMIT_CONTROL))
{
switch (bRequest)
{
case CX3_USB_APP_GET_INFO_REQ:
{
ep0Buf[0] = 3;
CyU3PUsbSendEP0Data (1, (uint8_t *)ep0Buf);
isHandled = CyTrue;
}
break;
case CX3_USB_APP_GET_LEN_REQ:
{
ep0Buf[0] = CX3_APP_MAX_PROBE_SETTING;
CyU3PUsbSendEP0Data (1, (uint8_t *)ep0Buf);
isHandled = CyTrue;
}
break;
case CX3_USB_APP_GET_CUR_REQ:
case CX3_USB_APP_GET_MIN_REQ:
case CX3_USB_APP_GET_MAX_REQ:
case CX3_USB_APP_GET_DEF_REQ:
{
/* Host requests for probe data of 34 bytes (UVC 1.1) or 26 Bytes (UVC1.0). Send it over EP0. */
ctrl_src = CyCx3AppGetProbeControlData (CyU3PUsbGetSpeed (), glCurrentFrameIndex);
if (ctrl_src != 0)
{
CyU3PMemCopy (glProbeCtrl, (uint8_t *)ctrl_src, CX3_APP_MAX_PROBE_SETTING);
status = CyU3PUsbSendEP0Data(CX3_APP_MAX_PROBE_SETTING, glProbeCtrl);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "\n\rUSB Setup CB:GET_CUR:SendEP0Data Err = 0x%x", status);
}
}
else
{
CyU3PUsbStall (0, CyTrue, CyFalse);
}
isHandled = CyTrue;
}
break;
case CX3_USB_APP_SET_CUR_REQ:
{
CyCx3AppHandleSetCurReq (wValue);
isHandled = CyTrue;
}
break;
default:
isHandled = CyFalse;
break;