![](/media/cache/profiles/45ab12afa05e563bb484781693dffc87.50x50_q85.jpg)
modify for C210 webcam and Startboard Orange.
Dependencies: TextLCD USBHost mbed
Fork of USBHostC270_example by
Norimasa Okamoto さんの http://mbed.org/users/va009039/code/USBHostC270_example/ を C210 webcam と StarBoard Orange での SD カード保存用に変更。
USBHostC270/USBHostC270.cpp
- Committer:
- va009039
- Date:
- 2013-03-17
- Revision:
- 10:387c49b2fc7e
- Parent:
- 9:fecabade834a
File content as of revision 10:387c49b2fc7e:
#include "USBHostC270.h" #include "dbg.h" //#define C270_DEBUG 1 #ifdef C270_DEBUG #define C270_DBG(x, ...) std::printf("[%s:%d]"x"\r\n", __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__); #else #define C270_DBG(...) while(0); #endif // ------------------ HcControl Register --------------------- #define OR_CONTROL_IE 0x00000008 USBHostC270::USBHostC270(int formatIndex, int frameIndex, uint32_t interval) { C270_DBG("formatIndex: %d, frameIndex: %d, interval: %d", formatIndex, frameIndex, interval); _formatIndex = formatIndex; _frameIndex = frameIndex; _interval = interval; m_isoEp = NULL; clearOnResult(); host = USBHost::getHostInst(); init(); } void USBHostC270::init() { C270_DBG(""); dev_connected = false; dev = NULL; c270_intf = -1; c270_device_found = false; c270_vid_pid_found = false; } bool USBHostC270::connected() { C270_DBG("dev_connected: %d", dev_connected); return dev_connected; } bool USBHostC270::connect() { C270_DBG("dev_connected: %d", dev_connected); if (dev_connected) { return true; } for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) { if ((dev = host->getDevice(i)) != NULL) { C270_DBG("Trying to connect C270 device\r\n"); if(host->enumerate(dev, this)) break; if (c270_device_found) { USB_INFO("New C270 device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, c270_intf); dev->setName("C270", c270_intf); host->registerDriver(dev, c270_intf, this, &USBHostC270::onDisconnect); int addr = dev->getAddress(); m_isoEp = new IsochronousEp(addr, C270_EN, C270_MPS); uint8_t buf[26]; memset(buf, 0, sizeof(buf)); buf[2] = _formatIndex; buf[3] = _frameIndex; *reinterpret_cast<uint32_t*>(buf+4) = _interval; USB_TYPE res = Control(SET_CUR, VS_COMMIT_CONTROL, 1, buf, sizeof(buf)); if (res != USB_TYPE_OK) { C270_DBG("SET_CUR VS_COMMIT_CONTROL FAILED"); } res = setInterfaceAlternate(1, C270_IF_ALT); // alt=1 packet size = 192 if (res != USB_TYPE_OK) { C270_DBG("SET_INTERFACE FAILED"); } for(int i = 0; i < 16; i++) { report_cc_count[i] = 0; report_ps_cc_count[i] = 0; } LPC_USB->HcControl |= OR_CONTROL_PLE; // PeriodicListEnable LPC_USB->HcControl |= OR_CONTROL_IE; // IsochronousEnable dev_connected = true; return true; } } } init(); return false; } void USBHostC270::onDisconnect() { C270_DBG("dev_connected: %d", dev_connected); // TODO if (m_isoEp) { m_isoEp->disconnect(); } init(); } /*virtual*/ void USBHostC270::setVidPid(uint16_t vid, uint16_t pid) { C270_DBG("vid:%04x,pid:%04x", vid, pid); if (vid == C270_VID && pid == C270_PID) { c270_vid_pid_found = true; } else { c270_vid_pid_found = false; } } /*virtual*/ bool USBHostC270::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 { C270_DBG("intf_nb=%d,intf_class=%02X,intf_subclass=%d,intf_protocol=%d", intf_nb, intf_class, intf_subclass, intf_protocol); if ((c270_intf == -1) && c270_vid_pid_found) { c270_intf = intf_nb; c270_vid_pid_found = false; c270_device_found = true; return true; } return false; } /*virtual*/ bool USBHostC270::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used { C270_DBG("intf_nb:%d,type:%d,dir:%d",intf_nb, type, dir); return false; } #define SEQ_READ_IDOL 0 #define SEQ_READ_EXEC 1 #define SEQ_READ_DONE 2 int USBHostC270::readJPEG(uint8_t* buf, int size, int timeout_ms) { _buf = buf; _pos = 0; _size = size; _seq = SEQ_READ_IDOL; setOnResult(this, &USBHostC270::callback_motion_jpeg); Timer timeout_t; timeout_t.reset(); timeout_t.start(); while(timeout_t.read_ms() < timeout_ms && _seq != SEQ_READ_DONE) { poll(timeout_ms); } return _pos; } /* virtual */ void USBHostC270::outputJPEG(uint8_t c, int status) { // from decodeMJPEG if (_seq == SEQ_READ_IDOL) { if (status == JPEG_START) { _pos = 0; _seq = SEQ_READ_EXEC; } } if (_seq == SEQ_READ_EXEC) { if (_pos < _size) { _buf[_pos++] = c; } if (status == JPEG_END) { _seq = SEQ_READ_DONE; } } } void USBHostC270::callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len) { inputPacket(buf, len); }