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LogitechC270 webcam class driver alpha version
Fork of USBHostMSD_HelloWorld by
USBHostC270/USBHostC270.cpp@12:ea4badc78215, 2013-03-20 (annotated)
- Committer:
- va009039
- Date:
- Wed Mar 20 14:28:39 2013 +0000
- Revision:
- 12:ea4badc78215
- Parent:
- 11:6a8eef89eb22
support detach
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
va009039 | 9:fecabade834a | 1 | #include "USBHostC270.h" |
va009039 | 9:fecabade834a | 2 | #include "dbg.h" |
va009039 | 9:fecabade834a | 3 | |
va009039 | 10:387c49b2fc7e | 4 | //#define C270_DEBUG 1 |
va009039 | 10:387c49b2fc7e | 5 | #ifdef C270_DEBUG |
va009039 | 10:387c49b2fc7e | 6 | #define C270_DBG(x, ...) std::printf("[%s:%d]"x"\r\n", __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__); |
va009039 | 10:387c49b2fc7e | 7 | #else |
va009039 | 10:387c49b2fc7e | 8 | #define C270_DBG(...) while(0); |
va009039 | 10:387c49b2fc7e | 9 | #endif |
va009039 | 10:387c49b2fc7e | 10 | |
va009039 | 9:fecabade834a | 11 | // ------------------ HcControl Register --------------------- |
va009039 | 9:fecabade834a | 12 | #define OR_CONTROL_IE 0x00000008 |
va009039 | 9:fecabade834a | 13 | |
va009039 | 9:fecabade834a | 14 | USBHostC270::USBHostC270(int formatIndex, int frameIndex, uint32_t interval) |
va009039 | 9:fecabade834a | 15 | { |
va009039 | 10:387c49b2fc7e | 16 | C270_DBG("formatIndex: %d, frameIndex: %d, interval: %d", formatIndex, frameIndex, interval); |
va009039 | 9:fecabade834a | 17 | _formatIndex = formatIndex; |
va009039 | 9:fecabade834a | 18 | _frameIndex = frameIndex; |
va009039 | 9:fecabade834a | 19 | _interval = interval; |
va009039 | 10:387c49b2fc7e | 20 | clearOnResult(); |
va009039 | 9:fecabade834a | 21 | host = USBHost::getHostInst(); |
va009039 | 11:6a8eef89eb22 | 22 | m_isoEp = new IsochronousEp; |
va009039 | 9:fecabade834a | 23 | init(); |
va009039 | 9:fecabade834a | 24 | } |
va009039 | 9:fecabade834a | 25 | |
va009039 | 9:fecabade834a | 26 | void USBHostC270::init() |
va009039 | 9:fecabade834a | 27 | { |
va009039 | 9:fecabade834a | 28 | C270_DBG(""); |
va009039 | 9:fecabade834a | 29 | dev_connected = false; |
va009039 | 9:fecabade834a | 30 | dev = NULL; |
va009039 | 9:fecabade834a | 31 | c270_intf = -1; |
va009039 | 9:fecabade834a | 32 | c270_device_found = false; |
va009039 | 9:fecabade834a | 33 | c270_vid_pid_found = false; |
va009039 | 9:fecabade834a | 34 | } |
va009039 | 9:fecabade834a | 35 | |
va009039 | 9:fecabade834a | 36 | bool USBHostC270::connected() |
va009039 | 9:fecabade834a | 37 | { |
va009039 | 9:fecabade834a | 38 | return dev_connected; |
va009039 | 9:fecabade834a | 39 | } |
va009039 | 9:fecabade834a | 40 | |
va009039 | 9:fecabade834a | 41 | bool USBHostC270::connect() |
va009039 | 9:fecabade834a | 42 | { |
va009039 | 9:fecabade834a | 43 | if (dev_connected) { |
va009039 | 9:fecabade834a | 44 | return true; |
va009039 | 9:fecabade834a | 45 | } |
va009039 | 9:fecabade834a | 46 | |
va009039 | 9:fecabade834a | 47 | for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) { |
va009039 | 9:fecabade834a | 48 | if ((dev = host->getDevice(i)) != NULL) { |
va009039 | 9:fecabade834a | 49 | |
va009039 | 9:fecabade834a | 50 | C270_DBG("Trying to connect C270 device\r\n"); |
va009039 | 9:fecabade834a | 51 | |
va009039 | 11:6a8eef89eb22 | 52 | if(host->enumerate(dev, this)) { |
va009039 | 9:fecabade834a | 53 | break; |
va009039 | 11:6a8eef89eb22 | 54 | } |
va009039 | 9:fecabade834a | 55 | if (c270_device_found) { |
va009039 | 9:fecabade834a | 56 | USB_INFO("New C270 device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, c270_intf); |
va009039 | 9:fecabade834a | 57 | dev->setName("C270", c270_intf); |
va009039 | 10:387c49b2fc7e | 58 | host->registerDriver(dev, c270_intf, this, &USBHostC270::onDisconnect); |
va009039 | 9:fecabade834a | 59 | int addr = dev->getAddress(); |
va009039 | 11:6a8eef89eb22 | 60 | m_isoEp->init(addr, C270_EN, C270_MPS); |
va009039 | 9:fecabade834a | 61 | uint8_t buf[26]; |
va009039 | 9:fecabade834a | 62 | memset(buf, 0, sizeof(buf)); |
va009039 | 9:fecabade834a | 63 | buf[2] = _formatIndex; |
va009039 | 9:fecabade834a | 64 | buf[3] = _frameIndex; |
va009039 | 9:fecabade834a | 65 | *reinterpret_cast<uint32_t*>(buf+4) = _interval; |
va009039 | 9:fecabade834a | 66 | USB_TYPE res = Control(SET_CUR, VS_COMMIT_CONTROL, 1, buf, sizeof(buf)); |
va009039 | 9:fecabade834a | 67 | if (res != USB_TYPE_OK) { |
va009039 | 9:fecabade834a | 68 | C270_DBG("SET_CUR VS_COMMIT_CONTROL FAILED"); |
va009039 | 9:fecabade834a | 69 | } |
va009039 | 9:fecabade834a | 70 | res = setInterfaceAlternate(1, C270_IF_ALT); // alt=1 packet size = 192 |
va009039 | 9:fecabade834a | 71 | if (res != USB_TYPE_OK) { |
va009039 | 9:fecabade834a | 72 | C270_DBG("SET_INTERFACE FAILED"); |
va009039 | 9:fecabade834a | 73 | } |
va009039 | 9:fecabade834a | 74 | for(int i = 0; i < 16; i++) { |
va009039 | 9:fecabade834a | 75 | report_cc_count[i] = 0; |
va009039 | 9:fecabade834a | 76 | report_ps_cc_count[i] = 0; |
va009039 | 9:fecabade834a | 77 | } |
va009039 | 9:fecabade834a | 78 | LPC_USB->HcControl |= OR_CONTROL_PLE; // PeriodicListEnable |
va009039 | 9:fecabade834a | 79 | LPC_USB->HcControl |= OR_CONTROL_IE; // IsochronousEnable |
va009039 | 9:fecabade834a | 80 | |
va009039 | 9:fecabade834a | 81 | dev_connected = true; |
va009039 | 9:fecabade834a | 82 | return true; |
va009039 | 9:fecabade834a | 83 | } |
va009039 | 9:fecabade834a | 84 | } |
va009039 | 9:fecabade834a | 85 | } |
va009039 | 9:fecabade834a | 86 | init(); |
va009039 | 9:fecabade834a | 87 | return false; |
va009039 | 9:fecabade834a | 88 | } |
va009039 | 9:fecabade834a | 89 | |
va009039 | 10:387c49b2fc7e | 90 | void USBHostC270::onDisconnect() |
va009039 | 10:387c49b2fc7e | 91 | { |
va009039 | 10:387c49b2fc7e | 92 | C270_DBG("dev_connected: %d", dev_connected); |
va009039 | 11:6a8eef89eb22 | 93 | if (dev_connected) { |
va009039 | 11:6a8eef89eb22 | 94 | m_isoEp->disconnect(); |
va009039 | 11:6a8eef89eb22 | 95 | init(); |
va009039 | 10:387c49b2fc7e | 96 | } |
va009039 | 10:387c49b2fc7e | 97 | } |
va009039 | 10:387c49b2fc7e | 98 | |
va009039 | 9:fecabade834a | 99 | /*virtual*/ void USBHostC270::setVidPid(uint16_t vid, uint16_t pid) |
va009039 | 9:fecabade834a | 100 | { |
va009039 | 9:fecabade834a | 101 | C270_DBG("vid:%04x,pid:%04x", vid, pid); |
va009039 | 9:fecabade834a | 102 | if (vid == C270_VID && pid == C270_PID) { |
va009039 | 9:fecabade834a | 103 | c270_vid_pid_found = true; |
va009039 | 9:fecabade834a | 104 | } else { |
va009039 | 9:fecabade834a | 105 | c270_vid_pid_found = false; |
va009039 | 9:fecabade834a | 106 | } |
va009039 | 9:fecabade834a | 107 | } |
va009039 | 9:fecabade834a | 108 | |
va009039 | 9:fecabade834a | 109 | /*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 |
va009039 | 9:fecabade834a | 110 | { |
va009039 | 9:fecabade834a | 111 | C270_DBG("intf_nb=%d,intf_class=%02X,intf_subclass=%d,intf_protocol=%d", intf_nb, intf_class, intf_subclass, intf_protocol); |
va009039 | 9:fecabade834a | 112 | if ((c270_intf == -1) && c270_vid_pid_found) { |
va009039 | 9:fecabade834a | 113 | c270_intf = intf_nb; |
va009039 | 10:387c49b2fc7e | 114 | c270_vid_pid_found = false; |
va009039 | 9:fecabade834a | 115 | c270_device_found = true; |
va009039 | 9:fecabade834a | 116 | return true; |
va009039 | 9:fecabade834a | 117 | } |
va009039 | 9:fecabade834a | 118 | return false; |
va009039 | 9:fecabade834a | 119 | } |
va009039 | 9:fecabade834a | 120 | |
va009039 | 9:fecabade834a | 121 | /*virtual*/ bool USBHostC270::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used |
va009039 | 9:fecabade834a | 122 | { |
va009039 | 9:fecabade834a | 123 | C270_DBG("intf_nb:%d,type:%d,dir:%d",intf_nb, type, dir); |
va009039 | 9:fecabade834a | 124 | return false; |
va009039 | 9:fecabade834a | 125 | } |
va009039 | 9:fecabade834a | 126 | |
va009039 | 10:387c49b2fc7e | 127 | #define SEQ_READ_IDOL 0 |
va009039 | 10:387c49b2fc7e | 128 | #define SEQ_READ_EXEC 1 |
va009039 | 10:387c49b2fc7e | 129 | #define SEQ_READ_DONE 2 |
va009039 | 10:387c49b2fc7e | 130 | |
va009039 | 10:387c49b2fc7e | 131 | int USBHostC270::readJPEG(uint8_t* buf, int size, int timeout_ms) { |
va009039 | 10:387c49b2fc7e | 132 | _buf = buf; |
va009039 | 10:387c49b2fc7e | 133 | _pos = 0; |
va009039 | 10:387c49b2fc7e | 134 | _size = size; |
va009039 | 10:387c49b2fc7e | 135 | _seq = SEQ_READ_IDOL; |
va009039 | 10:387c49b2fc7e | 136 | setOnResult(this, &USBHostC270::callback_motion_jpeg); |
va009039 | 10:387c49b2fc7e | 137 | Timer timeout_t; |
va009039 | 10:387c49b2fc7e | 138 | timeout_t.reset(); |
va009039 | 10:387c49b2fc7e | 139 | timeout_t.start(); |
va009039 | 10:387c49b2fc7e | 140 | while(timeout_t.read_ms() < timeout_ms && _seq != SEQ_READ_DONE) { |
va009039 | 10:387c49b2fc7e | 141 | poll(timeout_ms); |
va009039 | 10:387c49b2fc7e | 142 | } |
va009039 | 10:387c49b2fc7e | 143 | return _pos; |
va009039 | 9:fecabade834a | 144 | } |
va009039 | 9:fecabade834a | 145 | |
va009039 | 10:387c49b2fc7e | 146 | /* virtual */ void USBHostC270::outputJPEG(uint8_t c, int status) { // from decodeMJPEG |
va009039 | 10:387c49b2fc7e | 147 | if (_seq == SEQ_READ_IDOL) { |
va009039 | 10:387c49b2fc7e | 148 | if (status == JPEG_START) { |
va009039 | 10:387c49b2fc7e | 149 | _pos = 0; |
va009039 | 10:387c49b2fc7e | 150 | _seq = SEQ_READ_EXEC; |
va009039 | 10:387c49b2fc7e | 151 | } |
va009039 | 9:fecabade834a | 152 | } |
va009039 | 10:387c49b2fc7e | 153 | if (_seq == SEQ_READ_EXEC) { |
va009039 | 10:387c49b2fc7e | 154 | if (_pos < _size) { |
va009039 | 10:387c49b2fc7e | 155 | _buf[_pos++] = c; |
va009039 | 10:387c49b2fc7e | 156 | } |
va009039 | 10:387c49b2fc7e | 157 | if (status == JPEG_END) { |
va009039 | 10:387c49b2fc7e | 158 | _seq = SEQ_READ_DONE; |
va009039 | 10:387c49b2fc7e | 159 | } |
va009039 | 10:387c49b2fc7e | 160 | } |
va009039 | 9:fecabade834a | 161 | } |
va009039 | 9:fecabade834a | 162 | |
va009039 | 10:387c49b2fc7e | 163 | void USBHostC270::callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len) { |
va009039 | 10:387c49b2fc7e | 164 | inputPacket(buf, len); |
va009039 | 10:387c49b2fc7e | 165 | } |