see: http://mbed.org/users/okini3939/notebook/wifi_webcam/
Dependencies: GSwifiInterface_ap_webcam USBHost mbed
USBHostCam/USBHostCam.cpp@0:8558bdecb0fa, 2014-06-06 (annotated)
- Committer:
- okini3939
- Date:
- Fri Jun 06 00:44:06 2014 +0000
- Revision:
- 0:8558bdecb0fa
1st build
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
okini3939 | 0:8558bdecb0fa | 1 | // USBHostCam.cpp |
okini3939 | 0:8558bdecb0fa | 2 | #include "USBHostCam.h" |
okini3939 | 0:8558bdecb0fa | 3 | #include "dbg.h" |
okini3939 | 0:8558bdecb0fa | 4 | |
okini3939 | 0:8558bdecb0fa | 5 | //#define CAM_DEBUG 1 |
okini3939 | 0:8558bdecb0fa | 6 | #ifdef CAM_DEBUG |
okini3939 | 0:8558bdecb0fa | 7 | #define CAM_DBG(x, ...) std::printf("[%s:%d]"x"\r\n", __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__); |
okini3939 | 0:8558bdecb0fa | 8 | #else |
okini3939 | 0:8558bdecb0fa | 9 | #define CAM_DBG(...) while(0); |
okini3939 | 0:8558bdecb0fa | 10 | #endif |
okini3939 | 0:8558bdecb0fa | 11 | |
okini3939 | 0:8558bdecb0fa | 12 | // ------------------ HcControl Register --------------------- |
okini3939 | 0:8558bdecb0fa | 13 | #define OR_CONTROL_IE 0x00000008 |
okini3939 | 0:8558bdecb0fa | 14 | |
okini3939 | 0:8558bdecb0fa | 15 | CamInfo* getCamInfoList(); // CamInfo.cpp |
okini3939 | 0:8558bdecb0fa | 16 | |
okini3939 | 0:8558bdecb0fa | 17 | USBHostCam::USBHostCam(uint8_t size, uint8_t option, CamInfo* user_caminfo) |
okini3939 | 0:8558bdecb0fa | 18 | { |
okini3939 | 0:8558bdecb0fa | 19 | CAM_DBG("size: %d, option: %d", size, option); |
okini3939 | 0:8558bdecb0fa | 20 | _caminfo_size = size; |
okini3939 | 0:8558bdecb0fa | 21 | _caminfo_option = option; |
okini3939 | 0:8558bdecb0fa | 22 | if (user_caminfo) { |
okini3939 | 0:8558bdecb0fa | 23 | CamInfoList = user_caminfo; |
okini3939 | 0:8558bdecb0fa | 24 | } else { |
okini3939 | 0:8558bdecb0fa | 25 | CamInfoList = getCamInfoList(); |
okini3939 | 0:8558bdecb0fa | 26 | } |
okini3939 | 0:8558bdecb0fa | 27 | clearOnResult(); |
okini3939 | 0:8558bdecb0fa | 28 | host = USBHost::getHostInst(); |
okini3939 | 0:8558bdecb0fa | 29 | m_isoEp = new IsochronousEp; |
okini3939 | 0:8558bdecb0fa | 30 | init(); |
okini3939 | 0:8558bdecb0fa | 31 | } |
okini3939 | 0:8558bdecb0fa | 32 | |
okini3939 | 0:8558bdecb0fa | 33 | void USBHostCam::init() |
okini3939 | 0:8558bdecb0fa | 34 | { |
okini3939 | 0:8558bdecb0fa | 35 | CAM_DBG(""); |
okini3939 | 0:8558bdecb0fa | 36 | dev_connected = false; |
okini3939 | 0:8558bdecb0fa | 37 | dev = NULL; |
okini3939 | 0:8558bdecb0fa | 38 | cam_intf = -1; |
okini3939 | 0:8558bdecb0fa | 39 | device_found = false; |
okini3939 | 0:8558bdecb0fa | 40 | caminfo_found = false; |
okini3939 | 0:8558bdecb0fa | 41 | } |
okini3939 | 0:8558bdecb0fa | 42 | |
okini3939 | 0:8558bdecb0fa | 43 | bool USBHostCam::connected() |
okini3939 | 0:8558bdecb0fa | 44 | { |
okini3939 | 0:8558bdecb0fa | 45 | return dev_connected; |
okini3939 | 0:8558bdecb0fa | 46 | } |
okini3939 | 0:8558bdecb0fa | 47 | |
okini3939 | 0:8558bdecb0fa | 48 | bool USBHostCam::connect() |
okini3939 | 0:8558bdecb0fa | 49 | { |
okini3939 | 0:8558bdecb0fa | 50 | if (dev_connected) { |
okini3939 | 0:8558bdecb0fa | 51 | return true; |
okini3939 | 0:8558bdecb0fa | 52 | } |
okini3939 | 0:8558bdecb0fa | 53 | |
okini3939 | 0:8558bdecb0fa | 54 | for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) { |
okini3939 | 0:8558bdecb0fa | 55 | if ((dev = host->getDevice(i)) != NULL) { |
okini3939 | 0:8558bdecb0fa | 56 | |
okini3939 | 0:8558bdecb0fa | 57 | CAM_DBG("Trying to connect Cam device\r\n"); |
okini3939 | 0:8558bdecb0fa | 58 | |
okini3939 | 0:8558bdecb0fa | 59 | if(host->enumerate(dev, this)) { |
okini3939 | 0:8558bdecb0fa | 60 | break; |
okini3939 | 0:8558bdecb0fa | 61 | } |
okini3939 | 0:8558bdecb0fa | 62 | if (device_found) { |
okini3939 | 0:8558bdecb0fa | 63 | USB_INFO("New Cam: %s device: VID:%04x PID:%04x [dev: %p - intf: %d]", caminfo->name, dev->getVid(), dev->getPid(), dev, cam_intf); |
okini3939 | 0:8558bdecb0fa | 64 | dev->setName(caminfo->name, cam_intf); |
okini3939 | 0:8558bdecb0fa | 65 | host->registerDriver(dev, cam_intf, this, &USBHostCam::onDisconnect); |
okini3939 | 0:8558bdecb0fa | 66 | int addr = dev->getAddress(); |
okini3939 | 0:8558bdecb0fa | 67 | m_isoEp->init(addr, caminfo->en, caminfo->mps, caminfo->frameCount, caminfo->queueLimit); |
okini3939 | 0:8558bdecb0fa | 68 | uint8_t buf[26]; |
okini3939 | 0:8558bdecb0fa | 69 | memset(buf, 0, sizeof(buf)); |
okini3939 | 0:8558bdecb0fa | 70 | buf[2] = caminfo->formatIndex; |
okini3939 | 0:8558bdecb0fa | 71 | buf[3] = caminfo->frameIndex; |
okini3939 | 0:8558bdecb0fa | 72 | *reinterpret_cast<uint32_t*>(buf+4) = caminfo->interval; |
okini3939 | 0:8558bdecb0fa | 73 | USB_TYPE res = Control(SET_CUR, VS_COMMIT_CONTROL, 1, buf, sizeof(buf)); |
okini3939 | 0:8558bdecb0fa | 74 | if (res != USB_TYPE_OK) { |
okini3939 | 0:8558bdecb0fa | 75 | CAM_DBG("SET_CUR VS_COMMIT_CONTROL FAILED"); |
okini3939 | 0:8558bdecb0fa | 76 | } |
okini3939 | 0:8558bdecb0fa | 77 | res = setInterfaceAlternate(1, caminfo->if_alt); |
okini3939 | 0:8558bdecb0fa | 78 | if (res != USB_TYPE_OK) { |
okini3939 | 0:8558bdecb0fa | 79 | CAM_DBG("SET_INTERFACE FAILED"); |
okini3939 | 0:8558bdecb0fa | 80 | } |
okini3939 | 0:8558bdecb0fa | 81 | for(int i = 0; i < 16; i++) { |
okini3939 | 0:8558bdecb0fa | 82 | report_cc_count[i] = 0; |
okini3939 | 0:8558bdecb0fa | 83 | report_ps_cc_count[i] = 0; |
okini3939 | 0:8558bdecb0fa | 84 | } |
okini3939 | 0:8558bdecb0fa | 85 | LPC_USB->HcControl |= OR_CONTROL_PLE; // PeriodicListEnable |
okini3939 | 0:8558bdecb0fa | 86 | LPC_USB->HcControl |= OR_CONTROL_IE; // IsochronousEnable |
okini3939 | 0:8558bdecb0fa | 87 | |
okini3939 | 0:8558bdecb0fa | 88 | dev_connected = true; |
okini3939 | 0:8558bdecb0fa | 89 | return true; |
okini3939 | 0:8558bdecb0fa | 90 | } |
okini3939 | 0:8558bdecb0fa | 91 | } |
okini3939 | 0:8558bdecb0fa | 92 | } |
okini3939 | 0:8558bdecb0fa | 93 | init(); |
okini3939 | 0:8558bdecb0fa | 94 | return false; |
okini3939 | 0:8558bdecb0fa | 95 | } |
okini3939 | 0:8558bdecb0fa | 96 | |
okini3939 | 0:8558bdecb0fa | 97 | void USBHostCam::onDisconnect() |
okini3939 | 0:8558bdecb0fa | 98 | { |
okini3939 | 0:8558bdecb0fa | 99 | CAM_DBG("dev_connected: %d", dev_connected); |
okini3939 | 0:8558bdecb0fa | 100 | if (dev_connected) { |
okini3939 | 0:8558bdecb0fa | 101 | m_isoEp->disconnect(); |
okini3939 | 0:8558bdecb0fa | 102 | init(); |
okini3939 | 0:8558bdecb0fa | 103 | } |
okini3939 | 0:8558bdecb0fa | 104 | } |
okini3939 | 0:8558bdecb0fa | 105 | |
okini3939 | 0:8558bdecb0fa | 106 | /*virtual*/ void USBHostCam::setVidPid(uint16_t vid, uint16_t pid) |
okini3939 | 0:8558bdecb0fa | 107 | { |
okini3939 | 0:8558bdecb0fa | 108 | CAM_DBG("vid:%04x,pid:%04x", vid, pid); |
okini3939 | 0:8558bdecb0fa | 109 | caminfo = CamInfoList; |
okini3939 | 0:8558bdecb0fa | 110 | while(caminfo->vid != 0) { |
okini3939 | 0:8558bdecb0fa | 111 | if (caminfo->vid == vid && caminfo->pid == pid && |
okini3939 | 0:8558bdecb0fa | 112 | caminfo->size == _caminfo_size && caminfo->option == _caminfo_option) { |
okini3939 | 0:8558bdecb0fa | 113 | caminfo_found = true; |
okini3939 | 0:8558bdecb0fa | 114 | break; |
okini3939 | 0:8558bdecb0fa | 115 | } |
okini3939 | 0:8558bdecb0fa | 116 | caminfo++; |
okini3939 | 0:8558bdecb0fa | 117 | } |
okini3939 | 0:8558bdecb0fa | 118 | } |
okini3939 | 0:8558bdecb0fa | 119 | |
okini3939 | 0:8558bdecb0fa | 120 | /*virtual*/ bool USBHostCam::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed |
okini3939 | 0:8558bdecb0fa | 121 | { |
okini3939 | 0:8558bdecb0fa | 122 | CAM_DBG("intf_nb=%d,intf_class=%02X,intf_subclass=%d,intf_protocol=%d", intf_nb, intf_class, intf_subclass, intf_protocol); |
okini3939 | 0:8558bdecb0fa | 123 | if ((cam_intf == -1) && caminfo_found) { |
okini3939 | 0:8558bdecb0fa | 124 | cam_intf = intf_nb; |
okini3939 | 0:8558bdecb0fa | 125 | device_found = true; |
okini3939 | 0:8558bdecb0fa | 126 | return true; |
okini3939 | 0:8558bdecb0fa | 127 | } |
okini3939 | 0:8558bdecb0fa | 128 | return false; |
okini3939 | 0:8558bdecb0fa | 129 | } |
okini3939 | 0:8558bdecb0fa | 130 | |
okini3939 | 0:8558bdecb0fa | 131 | /*virtual*/ bool USBHostCam::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used |
okini3939 | 0:8558bdecb0fa | 132 | { |
okini3939 | 0:8558bdecb0fa | 133 | CAM_DBG("intf_nb:%d,type:%d,dir:%d",intf_nb, type, dir); |
okini3939 | 0:8558bdecb0fa | 134 | return false; |
okini3939 | 0:8558bdecb0fa | 135 | } |
okini3939 | 0:8558bdecb0fa | 136 | |
okini3939 | 0:8558bdecb0fa | 137 | #define SEQ_READ_IDOL 0 |
okini3939 | 0:8558bdecb0fa | 138 | #define SEQ_READ_EXEC 1 |
okini3939 | 0:8558bdecb0fa | 139 | #define SEQ_READ_DONE 2 |
okini3939 | 0:8558bdecb0fa | 140 | |
okini3939 | 0:8558bdecb0fa | 141 | int USBHostCam::readJPEG(uint8_t* buf, int size, int timeout_ms) { |
okini3939 | 0:8558bdecb0fa | 142 | _buf = buf; |
okini3939 | 0:8558bdecb0fa | 143 | _pos = 0; |
okini3939 | 0:8558bdecb0fa | 144 | _size = size; |
okini3939 | 0:8558bdecb0fa | 145 | _seq = SEQ_READ_IDOL; |
okini3939 | 0:8558bdecb0fa | 146 | setOnResult(this, &USBHostCam::callback_motion_jpeg); |
okini3939 | 0:8558bdecb0fa | 147 | Timer timeout_t; |
okini3939 | 0:8558bdecb0fa | 148 | timeout_t.reset(); |
okini3939 | 0:8558bdecb0fa | 149 | timeout_t.start(); |
okini3939 | 0:8558bdecb0fa | 150 | while(timeout_t.read_ms() < timeout_ms && _seq != SEQ_READ_DONE && connected()) { |
okini3939 | 0:8558bdecb0fa | 151 | poll(); |
okini3939 | 0:8558bdecb0fa | 152 | Thread::wait(1); |
okini3939 | 0:8558bdecb0fa | 153 | } |
okini3939 | 0:8558bdecb0fa | 154 | return _pos; |
okini3939 | 0:8558bdecb0fa | 155 | } |
okini3939 | 0:8558bdecb0fa | 156 | |
okini3939 | 0:8558bdecb0fa | 157 | /* virtual */ void USBHostCam::outputJPEG(uint8_t c, int status) { // from decodeMJPEG |
okini3939 | 0:8558bdecb0fa | 158 | if (_seq == SEQ_READ_IDOL) { |
okini3939 | 0:8558bdecb0fa | 159 | if (status == JPEG_START) { |
okini3939 | 0:8558bdecb0fa | 160 | _pos = 0; |
okini3939 | 0:8558bdecb0fa | 161 | _seq = SEQ_READ_EXEC; |
okini3939 | 0:8558bdecb0fa | 162 | } |
okini3939 | 0:8558bdecb0fa | 163 | } |
okini3939 | 0:8558bdecb0fa | 164 | if (_seq == SEQ_READ_EXEC) { |
okini3939 | 0:8558bdecb0fa | 165 | if (_pos < _size) { |
okini3939 | 0:8558bdecb0fa | 166 | _buf[_pos++] = c; |
okini3939 | 0:8558bdecb0fa | 167 | } |
okini3939 | 0:8558bdecb0fa | 168 | if (status == JPEG_END) { |
okini3939 | 0:8558bdecb0fa | 169 | _seq = SEQ_READ_DONE; |
okini3939 | 0:8558bdecb0fa | 170 | } |
okini3939 | 0:8558bdecb0fa | 171 | } |
okini3939 | 0:8558bdecb0fa | 172 | } |
okini3939 | 0:8558bdecb0fa | 173 | |
okini3939 | 0:8558bdecb0fa | 174 | void USBHostCam::callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len) { |
okini3939 | 0:8558bdecb0fa | 175 | inputPacket(buf, len); |
okini3939 | 0:8558bdecb0fa | 176 | } |