Diff: uvc/uvccfg.cpp

Revision:

0:1ed23ab1345f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uvc/uvccfg.cpp	Tue Jun 26 14:27:45 2012 +0000
@@ -0,0 +1,401 @@
+#include "mbed.h"
+#include "uvc.h"
+#define __DEBUG
+#include "mydbg.h"
+#include "stcamcfg.h"
+#include "Utils.h"
+
+#define  DESCRIPTOR_TYPE_DEVICE        1
+#define  DESCRIPTOR_TYPE_CONFIGURATION 2
+#define  DESCRIPTOR_TYPE_STRING        3
+#define  DESCRIPTOR_TYPE_INTERFACE     4
+#define  DESCRIPTOR_TYPE_ENDPOINT      5
+
+#define DESCRIPTOR_TYPE_INTERFACE_ASSOCIATION 0x0b
+
+#define DESCRIPTOR_TYPE_HID          0x21
+#define DESCRIPTOR_TYPE_REPORT       0x22
+#define DESCRIPTOR_TYPE_PHYSICAL     0x23
+#define DESCRIPTOR_TYPE_CS_INTERFACE 0x24
+#define DESCRIPTOR_TYPE_CS_ENDPOINT  0x25
+#define DESCRIPTOR_TYPE_HUB          0x29
+
+#define CLASS_AUDIO 0x02
+#define CLASS_HUB   0x09
+
+#define IF_EQ_THEN_PRINTF(A,B) if (A == B) {VERBOSE("%s\n", #A);
+#define ENDIF }
+
+#define AC_HEADER          0x01
+#define AC_INPUT_TERMINAL  0x02
+#define AC_OUTPUT_TERMINAL 0x03
+#define AC_FEATURE_UNIT    0x06
+
+// Input Terminal Types
+#define ITT_CAMERA 0x0201
+
+
+void _parserAudioControl(uint8_t* buf, int len) {
+    int subtype = buf[2];
+    IF_EQ_THEN_PRINTF(AC_HEADER, subtype)
+    VERBOSE("ADC: %04x\n", LE16(buf+3));
+    VERBOSE("TotalLength: %d\n", LE16(buf+5));
+    VERBOSE("InCollection: %d\n", buf[7]);
+    for (int n = 1; n <= buf[7]; n++) {
+        VERBOSE("aInterfaceNr(%d): %d\n", n, buf[8+n-1]);
+    }
+    ENDIF
+    IF_EQ_THEN_PRINTF(AC_INPUT_TERMINAL, subtype)
+    VERBOSE("TerminalID: %d\n", buf[3]);
+    VERBOSE("TerminalType: %04X\n", LE16(buf+4));
+    VERBOSE("AssocTermianl: %d\n", buf[6]);
+    VERBOSE("NrChannels: %d\n", buf[7]);
+    ENDIF
+    IF_EQ_THEN_PRINTF(AC_OUTPUT_TERMINAL, subtype)
+    VERBOSE("TerminalID: %d\n", buf[3]);
+    VERBOSE("TerminalType: %04X\n", LE16(buf+4));
+    VERBOSE("AssocTermianl: %d\n", buf[6]);
+    ENDIF
+    IF_EQ_THEN_PRINTF(AC_FEATURE_UNIT, subtype)
+    VERBOSE("UnitID: %d\n", buf[3]);
+    VERBOSE("SourceID: %d\n", buf[4]);
+    VERBOSE("ControlSize: %d\n", buf[5]);
+    ENDIF
+}
+
+#define AS_GENERAL     0x01
+#define AS_FORMAT_TYPE 0x02
+
+void _parserAudioStream(uint8_t* buf, int len) {
+    int subtype = buf[2];
+    IF_EQ_THEN_PRINTF(AS_GENERAL, subtype)
+    VERBOSE("TerminalLink: %d\n", buf[3]);
+    VERBOSE("Delay: %d\n", buf[4]);
+    VERBOSE("FormatTag: %04x\n", LE16(buf+5));
+    ENDIF
+    IF_EQ_THEN_PRINTF(AS_FORMAT_TYPE, subtype)
+    VERBOSE("FormatType: %d\n", buf[3]);
+    VERBOSE("NrChannels: %d\n", buf[4]);
+    VERBOSE("SubFrameSize: %d\n", buf[5]);
+    VERBOSE("BitResolution: %d\n", buf[6]);
+    VERBOSE("SamFreqType: %d\n", buf[7]);
+    VERBOSE("SamFreq(1): %d\n", LE24(buf+8));
+    ENDIF
+}
+
+#define CC_VIDEO 0x0e
+
+#define SC_VIDEOCONTROL   0x01
+#define SC_VIDEOSTREAMING 0x02
+
+#define VC_HEADER          0x01
+#define VC_INPUT_TERMINAL  0x02
+#define VC_OUTPUT_TERMINAL 0x03
+#define VC_SELECTOR_UNIT   0x04
+#define VC_PROCESSING_UNIT 0x05
+#define VC_EXTENSION_UNIT  0x06
+
+void _parserVideoControl(uint8_t* buf, int len) {
+    int subtype = buf[2];
+    IF_EQ_THEN_PRINTF(VC_HEADER, subtype)
+        VERBOSE("UVC: %04x\n", LE16(buf+3));
+        VERBOSE("TotalLength: %d\n", LE16(buf+5));
+        VERBOSE("ClockFrequency: %d\n", LE32(buf+7));
+        VERBOSE("InCollection: %d\n", buf[11]);
+        VERBOSE("aInterfaceNr(1): %d\n", buf[12]);
+    ENDIF
+    IF_EQ_THEN_PRINTF(VC_INPUT_TERMINAL, subtype)
+        VERBOSE("TerminalID: %d\n", buf[3]);
+        uint16_t tt = LE16(buf+4);
+        VERBOSE("TerminalType: %04X\n", tt);
+        VERBOSE("AssocTerminal: %d\n", buf[6]);
+        VERBOSE("Terminal: %d\n", buf[7]);
+        if (tt == ITT_CAMERA) { // camera
+            int bControlSize = buf[14];
+            VERBOSE("ControlSize: %d\n", bControlSize);
+            for(int i = 0; i < bControlSize; i++) {
+            uint8_t bControls = buf[15+i];
+                VERBOSE("Controls(%d): %02X\n", i, bControls); 
+            }
+        }
+    ENDIF
+    IF_EQ_THEN_PRINTF(VC_OUTPUT_TERMINAL, subtype)
+        VERBOSE("TerminalID: %d\n", buf[3]);
+        VERBOSE("TerminalType: %04X\n", LE16(buf+4));
+        VERBOSE("AssocTerminal: %d\n", buf[6]);
+        VERBOSE("SourceID: %d\n", buf[7]);
+        VERBOSE("Terminal: %d\n", buf[8]);
+    ENDIF
+    IF_EQ_THEN_PRINTF(VC_SELECTOR_UNIT, subtype)
+        VERBOSE("UnitID: %d\n", buf[3]);
+    ENDIF
+    IF_EQ_THEN_PRINTF(VC_PROCESSING_UNIT, subtype)
+        VERBOSE("UnitID: %d\n", buf[3]);
+        VERBOSE("SourceID: %d\n", buf[4]);
+        VERBOSE("MaxMultiplier: %d\n", LE16(buf+5));
+        VERBOSE("ControlSize: %d\n", buf[7]);
+        int pos = 8;
+        for (int n = 1; n <= buf[7]; n++) {
+            VERBOSE("Controls(%d): %02X\n", n , buf[pos]);
+            pos++;
+        }
+        VERBOSE("Processing: %d\n", buf[pos]);
+        pos++;
+        VERBOSE("VideoStanders: %02X\n", buf[pos]);
+    ENDIF
+    IF_EQ_THEN_PRINTF(VC_EXTENSION_UNIT, subtype)
+        VERBOSE("UnitID: %d\n", buf[3]);
+    ENDIF
+}
+
+#define VS_INPUT_HEADER 0x01
+#define VS_STILL_FRAME  0x03
+#define VS_FORMAT_UNCOMPRESSED 0x04
+#define VS_FRAME_UNCOMPRESSED 0x05
+#define VS_FORMAT_MJPEG 0x06
+#define VS_FRAME_MJPEG  0x07
+#define VS_COLOR_FORMAT 0x0d
+
+void _parserVideoStream(struct stcamcfg* cfg, uint8_t* buf, int len) {
+    int subtype = buf[2];
+    IF_EQ_THEN_PRINTF(VS_INPUT_HEADER, subtype)
+        VERBOSE("NumFormats: %d\n", buf[3]);
+        VERBOSE("TotalLength: %d\n", LE16(buf+4));
+        VERBOSE("EndpointAddress: %02X\n", buf[6]);
+        VERBOSE("Info: %02X\n", buf[7]);
+        VERBOSE("TerminalLink: %d\n", buf[8]);
+        VERBOSE("StillCaptureMethod: %d\n", buf[9]);
+        VERBOSE("TriggerSupport: %d\n", buf[10]);
+        VERBOSE("TriggerUsage: %d\n", buf[11]);
+        VERBOSE("ControlSize: %d\n", buf[12]);
+        int pos = 13;
+        for (int n = 1; n <= buf[12]; n++) {
+            VERBOSE("Controls(%d): %02X\n", n, buf[pos]);
+            pos++;
+        }
+        cfg->bEndpointAddress = buf[6];
+    ENDIF
+    IF_EQ_THEN_PRINTF(VS_STILL_FRAME, subtype)
+    VERBOSE("EndpointAdress: %02X\n", buf[3]);
+    VERBOSE("NumImageSizePatterns: %d\n", buf[4]);
+    int ptn = buf[4];
+    int pos = 5;
+    for (int n = 1; n <= ptn; n++) {
+        VERBOSE("Width(%d): %d\n", n, LE16(buf+pos));
+        VERBOSE("Height(%d): %d\n", n, LE16(buf+pos+2));
+        pos += 4;
+    }
+    VERBOSE("NumCompressPtn: %d\n", buf[pos]);
+    ptn = buf[pos++];
+    for (int n = 1; n <= ptn; n++) {
+        VERBOSE("Compress(%d): %d\n", n, buf[pos]);
+        pos++;
+    }
+    ENDIF
+    IF_EQ_THEN_PRINTF(VS_FORMAT_UNCOMPRESSED, subtype)
+        VERBOSE("FormatIndex: %d\n", buf[3]);
+        VERBOSE("NumFrameDescriptors: %d\n", buf[4]);
+        uint32_t guid = LE32(buf+5);
+        if (guid == 0x32595559) {
+            VERBOSE("GUID: YUY2\n");
+        } else if (guid == 0x3231564e) {
+            VERBOSE("GUID: NV12\n");
+        } else {
+            VERBOSE("GUID: %08x\n", guid);
+        }
+        VERBOSE("DefaultFrameIndex: %d\n", buf[22]);
+        if (cfg->payload == PAYLOAD_YUY2) {
+            cfg->FormatIndex = buf[3];
+        }
+    ENDIF
+    IF_EQ_THEN_PRINTF(VS_FRAME_UNCOMPRESSED, subtype)
+        VERBOSE("FrameIndex: %d\n", buf[3]);
+        VERBOSE("Capabilites: %d\n", buf[4]);
+        VERBOSE("Width: %d\n", LE16(buf+5));
+        VERBOSE("Height: %d\n", LE16(buf+7));
+        VERBOSE("MinBitRate: %d\n", LE32(buf+9));
+        VERBOSE("MaxBitRate: %d\n", LE32(buf+13));
+        VERBOSE("MaxVideoFrameBufferSize: %d\n", LE32(buf+17));
+        VERBOSE("DefaultFrameInterval: %d\n", LE32(buf+21));
+        VERBOSE("FrameIntervalType: %d\n", buf[25]);
+        int it = buf[25];
+        uint32_t max_fi = 333333; // 30.0fps
+        if (it == 0) {
+            VERBOSE("FrameMinInterval: %d\n", buf[26]);
+            VERBOSE("FrameMaxInterval: %d\n", buf[30]);
+            VERBOSE("FrameIntervalStep: %d\n", buf[34]);
+        } else {
+            int pos = 26;
+            for (int n = 1; n <= it; n++) {
+                uint32_t fi = LE32(buf+pos);
+                if (fi >= max_fi) {
+                    max_fi = fi;
+                }
+                float fps = 1e+7 / fi;
+                VERBOSE("FrameInterval(%u): %d (%.1f fps)\n", n, fi, fps);
+                pos += 4;
+            }
+        }
+        if (cfg->payload == PAYLOAD_YUY2) {
+            if (cfg->width == LE16(buf+5) && cfg->height == LE16(buf+7)) {
+                cfg->FrameIndex = buf[3];
+            }
+            if (cfg->dwFrameInterval == 0) {
+                cfg->dwFrameInterval = max_fi;
+            }
+        }
+    ENDIF
+    IF_EQ_THEN_PRINTF(VS_FORMAT_MJPEG, subtype)
+        VERBOSE("FormatIndex: %d\n", buf[3]);
+        VERBOSE("NumFrameDescriptors: %d\n", buf[4]);
+        VERBOSE("Flags: %d\n", buf[5]);
+        VERBOSE("DefaultFrameIndex: %d\n", buf[6]);
+        if (cfg->payload == PAYLOAD_MJPEG) {
+            cfg->FormatIndex = buf[3];
+        }
+    ENDIF
+    IF_EQ_THEN_PRINTF(VS_FRAME_MJPEG, subtype)
+        VERBOSE("FrameIndex: %d\n", buf[3]);
+        VERBOSE("Capabilites: %d\n", buf[4]);
+        VERBOSE("Width: %d\n", LE16(buf+5));
+        VERBOSE("Height: %d\n", LE16(buf+7));
+        VERBOSE("MinBitRate: %d\n", LE32(buf+9));
+        VERBOSE("MaxBitRate: %d\n", LE32(buf+13));
+        VERBOSE("MaxVideoFrameBufferSize: %d\n", LE32(buf+17));
+        VERBOSE("DefaultFrameInterval: %d\n", LE32(buf+21));
+        VERBOSE("FrameIntervalType: %d\n", buf[25]);
+        int it = buf[25];
+        uint32_t max_fi = 333333; // 30.0fps
+        if (it == 0) {
+            VERBOSE("FrameMinInterval: %d\n", buf[26]);
+            VERBOSE("FrameMaxInterval: %d\n", buf[30]);
+            VERBOSE("FrameIntervalStep: %d\n", buf[34]);
+        } else {
+            int pos = 26;
+            for (int n = 1; n <= it; n++) {
+                uint32_t fi = LE32(buf+pos);
+                if (fi >= max_fi) {
+                    max_fi = fi;
+                }
+                float fps = 1e+7 / fi;
+                VERBOSE("FrameInterval(%u): %d (%.1f fps)\n", n, fi, fps);
+                pos += 4;
+            }
+        }
+        if (cfg->payload == PAYLOAD_MJPEG) {
+            if (cfg->width == LE16(buf+5) && cfg->height == LE16(buf+7)) {
+                cfg->FrameIndex = buf[3];
+            }
+            if (cfg->dwFrameInterval == 0) {
+                cfg->dwFrameInterval = max_fi;
+            }
+        }
+    ENDIF
+    IF_EQ_THEN_PRINTF(VS_COLOR_FORMAT, subtype)
+    ENDIF
+}
+
+void _parserConfigurationDescriptor(struct stcamcfg* cfg, uint8_t* buf, int len) {
+    //DBG("buf=%p len=%d\n", buf, len);
+    //DBG_HEX(buf, len);
+    int pos = 0;
+    cfg->_IfClass = 0;
+    cfg->_IfSubClass = 0;
+    while (pos < len) {
+        int type = buf[pos+1];
+        //DBG_BYTES(TYPE_Str(type), buf+pos, buf[pos]);
+        IF_EQ_THEN_PRINTF(DESCRIPTOR_TYPE_CONFIGURATION, type)
+            VERBOSE("NumInterfaces: %d\n", buf[pos+4]);
+        ENDIF
+        IF_EQ_THEN_PRINTF(DESCRIPTOR_TYPE_INTERFACE_ASSOCIATION, type)
+            VERBOSE("FirstInterface: %d\n", buf[pos+2]);
+            VERBOSE("InterfaceCount: %d\n", buf[pos+3]);
+            VERBOSE("FunctionClass: %02X\n", buf[pos+4]);
+            VERBOSE("FunctionSubClass: %02X\n", buf[pos+5]);
+            VERBOSE("FunctionProtocol: %02X\n", buf[pos+6]);
+            VERBOSE("Function: %d\n", buf[pos+7]);
+        ENDIF
+        IF_EQ_THEN_PRINTF(DESCRIPTOR_TYPE_INTERFACE,type)
+            VERBOSE("InterfaceNumber: %d\n", buf[pos+2]);
+            VERBOSE("AlternateSetting: %d\n", buf[pos+3]);
+            VERBOSE("NumEndpoint: %d\n", buf[pos+4]);
+            VERBOSE("InterfaceClass: %02X\n", buf[pos+5]);
+            VERBOSE("InterfaceSubClass: %02X\n", buf[pos+6]);
+            VERBOSE("InterfaceProtocol: %02X\n", buf[pos+7]);
+            VERBOSE("Interface: %d\n", buf[pos+8]);
+            cfg->_If         = buf[pos+2];
+            cfg->_Ifalt      = buf[pos+3];
+            cfg->_IfClass    = buf[pos+5];
+            cfg->_IfSubClass = buf[pos+6];
+        ENDIF
+        IF_EQ_THEN_PRINTF(DESCRIPTOR_TYPE_ENDPOINT, type)
+            VERBOSE("EndpointAddress: %02X\n", buf[pos+2]);
+            VERBOSE("Attributes: %02X\n", buf[pos+3]);
+            VERBOSE("MaxPacketSize: %d\n", LE16(buf+pos+4));
+            VERBOSE("Interval: %d\n", buf[pos+6]);
+            if (cfg->_IfClass == CC_VIDEO && cfg->_IfSubClass == SC_VIDEOSTREAMING) {
+                if (cfg->bEndpointAddress == buf[pos+2]) {
+                    if (cfg->wMaxPacketSize == 0) {
+                        cfg->wMaxPacketSize = LE16(buf+pos+4);
+                    }    
+                    if (cfg->wMaxPacketSize == LE16(buf+pos+4)) {
+                        cfg->bInterface = cfg->_If;
+                        cfg->bAlternate = cfg->_Ifalt;
+                    }
+                }
+            }
+        ENDIF
+        IF_EQ_THEN_PRINTF(DESCRIPTOR_TYPE_CS_INTERFACE, type)
+            IF_EQ_THEN_PRINTF(CC_VIDEO, cfg->_IfClass)
+                IF_EQ_THEN_PRINTF(SC_VIDEOCONTROL, cfg->_IfSubClass)
+                    _parserVideoControl(buf+pos, buf[pos]);
+                ENDIF
+                IF_EQ_THEN_PRINTF(SC_VIDEOSTREAMING, cfg->_IfSubClass)
+                    _parserVideoStream(cfg, buf+pos, buf[pos]);
+                ENDIF
+            ENDIF
+            if (cfg->_IfClass == CLASS_AUDIO) {
+                if (cfg->_IfSubClass == 0x01) {
+                    _parserAudioControl(buf+pos, buf[pos]);
+                } else if (cfg->_IfSubClass == 0x02) {
+                    _parserAudioStream(buf+pos, buf[pos]);
+                }
+            }
+        ENDIF
+        IF_EQ_THEN_PRINTF(DESCRIPTOR_TYPE_HUB, type)
+        ENDIF
+        pos += buf[pos];
+    }
+}
+
+void uvc::_config(struct stcamcfg* cfg)
+{
+    DBG_ASSERT(cfg);
+    int index = 0;
+    uint8_t temp[4];
+    int rc = m_pDev->GetDescriptor(USB_DESCRIPTOR_TYPE_CONFIGURATION, index, temp, sizeof(temp));
+    DBG_ASSERT(rc == USBERR_OK);
+    DBG_BYTES("Config Descriptor 4bytes", temp, sizeof(temp));
+    DBG_ASSERT(temp[0] == 9);
+    DBG_ASSERT(temp[1] == 0x02);
+    int TotalLength = LE16(temp+2);
+    DBG("TotalLength: %d\n", TotalLength);
+
+    uint8_t* buf = new uint8_t[TotalLength];
+    DBG_ASSERT(buf);
+    rc = m_pDev->GetDescriptor(USB_DESCRIPTOR_TYPE_CONFIGURATION, index, 
+             buf, TotalLength);
+    DBG_ASSERT(rc == USBERR_OK);
+
+    _parserConfigurationDescriptor(cfg, buf, TotalLength);
+
+    DBG("cfg->FrameIndex=%d\n", cfg->FrameIndex);
+    DBG("cfg->dwFrameInterval=%u\n", cfg->dwFrameInterval);
+
+    //DBG_ASSERT(cfg->FormatIndex >= 1);
+    //DBG_ASSERT(cfg->FormatIndex <= 2);
+    //DBG_ASSERT(cfg->FrameIndex >= 1);
+    //DBG_ASSERT(cfg->FrameIndex <= 6);
+
+    delete[] buf;
+}