![](/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。
Diff: USBHostC270/USBHostC270.cpp
- Revision:
- 10:387c49b2fc7e
- Parent:
- 9:fecabade834a
--- a/USBHostC270/USBHostC270.cpp Sat Mar 16 13:07:55 2013 +0000 +++ b/USBHostC270/USBHostC270.cpp Sun Mar 17 13:22:13 2013 +0000 @@ -1,14 +1,24 @@ #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(); } @@ -21,18 +31,17 @@ c270_intf = -1; c270_device_found = false; c270_vid_pid_found = false; - clearOnResult(); } bool USBHostC270::connected() { - C270_DBG(""); + C270_DBG("dev_connected: %d", dev_connected); return dev_connected; } bool USBHostC270::connect() { - C270_DBG(""); + C270_DBG("dev_connected: %d", dev_connected); if (dev_connected) { return true; } @@ -48,7 +57,7 @@ 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::init); + 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]; @@ -80,6 +89,16 @@ 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); @@ -95,6 +114,7 @@ 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; } @@ -107,23 +127,42 @@ return false; } -USB_TYPE USBHostC270::setInterfaceAlternate(uint8_t intf, uint8_t alt) -{ - C270_DBG("intf:%d, alt:%d", intf, alt); - return host->controlWrite(dev, USB_HOST_TO_DEVICE | USB_RECIPIENT_INTERFACE, - SET_INTERFACE, alt, intf, NULL, 0); +#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; } -USB_TYPE USBHostC270::Control(int req, int cs, int index, uint8_t* buf, int size) -{ - C270_DBG("req:%d,cs:%d,index:%d", req, cs,index); - if (req == SET_CUR) { - return host->controlWrite(dev, - USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, - req, cs<<8, index, buf, size); +/* 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; + } } - return host->controlRead(dev, - USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, - req, cs<<8, index, buf, size); + 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); +}