testing n-Bed with a Logitech C270 camera
Fork of USBHostC270_example by
USBHostC270/USBHostC270.cpp@9:fecabade834a, 2013-03-16 (annotated)
- Committer:
- va009039
- Date:
- Sat Mar 16 13:07:55 2013 +0000
- Revision:
- 9:fecabade834a
- Child:
- 10:387c49b2fc7e
LogitechC270 class driver alpha version
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 | 9:fecabade834a | 4 | // ------------------ HcControl Register --------------------- |
va009039 | 9:fecabade834a | 5 | #define OR_CONTROL_IE 0x00000008 |
va009039 | 9:fecabade834a | 6 | |
va009039 | 9:fecabade834a | 7 | USBHostC270::USBHostC270(int formatIndex, int frameIndex, uint32_t interval) |
va009039 | 9:fecabade834a | 8 | { |
va009039 | 9:fecabade834a | 9 | _formatIndex = formatIndex; |
va009039 | 9:fecabade834a | 10 | _frameIndex = frameIndex; |
va009039 | 9:fecabade834a | 11 | _interval = interval; |
va009039 | 9:fecabade834a | 12 | host = USBHost::getHostInst(); |
va009039 | 9:fecabade834a | 13 | init(); |
va009039 | 9:fecabade834a | 14 | } |
va009039 | 9:fecabade834a | 15 | |
va009039 | 9:fecabade834a | 16 | void USBHostC270::init() |
va009039 | 9:fecabade834a | 17 | { |
va009039 | 9:fecabade834a | 18 | C270_DBG(""); |
va009039 | 9:fecabade834a | 19 | dev_connected = false; |
va009039 | 9:fecabade834a | 20 | dev = NULL; |
va009039 | 9:fecabade834a | 21 | c270_intf = -1; |
va009039 | 9:fecabade834a | 22 | c270_device_found = false; |
va009039 | 9:fecabade834a | 23 | c270_vid_pid_found = false; |
va009039 | 9:fecabade834a | 24 | clearOnResult(); |
va009039 | 9:fecabade834a | 25 | } |
va009039 | 9:fecabade834a | 26 | |
va009039 | 9:fecabade834a | 27 | bool USBHostC270::connected() |
va009039 | 9:fecabade834a | 28 | { |
va009039 | 9:fecabade834a | 29 | C270_DBG(""); |
va009039 | 9:fecabade834a | 30 | return dev_connected; |
va009039 | 9:fecabade834a | 31 | } |
va009039 | 9:fecabade834a | 32 | |
va009039 | 9:fecabade834a | 33 | bool USBHostC270::connect() |
va009039 | 9:fecabade834a | 34 | { |
va009039 | 9:fecabade834a | 35 | C270_DBG(""); |
va009039 | 9:fecabade834a | 36 | if (dev_connected) { |
va009039 | 9:fecabade834a | 37 | return true; |
va009039 | 9:fecabade834a | 38 | } |
va009039 | 9:fecabade834a | 39 | |
va009039 | 9:fecabade834a | 40 | for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) { |
va009039 | 9:fecabade834a | 41 | if ((dev = host->getDevice(i)) != NULL) { |
va009039 | 9:fecabade834a | 42 | |
va009039 | 9:fecabade834a | 43 | C270_DBG("Trying to connect C270 device\r\n"); |
va009039 | 9:fecabade834a | 44 | |
va009039 | 9:fecabade834a | 45 | if(host->enumerate(dev, this)) |
va009039 | 9:fecabade834a | 46 | break; |
va009039 | 9:fecabade834a | 47 | |
va009039 | 9:fecabade834a | 48 | if (c270_device_found) { |
va009039 | 9:fecabade834a | 49 | USB_INFO("New C270 device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, c270_intf); |
va009039 | 9:fecabade834a | 50 | dev->setName("C270", c270_intf); |
va009039 | 9:fecabade834a | 51 | host->registerDriver(dev, c270_intf, this, &USBHostC270::init); |
va009039 | 9:fecabade834a | 52 | int addr = dev->getAddress(); |
va009039 | 9:fecabade834a | 53 | m_isoEp = new IsochronousEp(addr, C270_EN, C270_MPS); |
va009039 | 9:fecabade834a | 54 | uint8_t buf[26]; |
va009039 | 9:fecabade834a | 55 | memset(buf, 0, sizeof(buf)); |
va009039 | 9:fecabade834a | 56 | buf[2] = _formatIndex; |
va009039 | 9:fecabade834a | 57 | buf[3] = _frameIndex; |
va009039 | 9:fecabade834a | 58 | *reinterpret_cast<uint32_t*>(buf+4) = _interval; |
va009039 | 9:fecabade834a | 59 | USB_TYPE res = Control(SET_CUR, VS_COMMIT_CONTROL, 1, buf, sizeof(buf)); |
va009039 | 9:fecabade834a | 60 | if (res != USB_TYPE_OK) { |
va009039 | 9:fecabade834a | 61 | C270_DBG("SET_CUR VS_COMMIT_CONTROL FAILED"); |
va009039 | 9:fecabade834a | 62 | } |
va009039 | 9:fecabade834a | 63 | res = setInterfaceAlternate(1, C270_IF_ALT); // alt=1 packet size = 192 |
va009039 | 9:fecabade834a | 64 | if (res != USB_TYPE_OK) { |
va009039 | 9:fecabade834a | 65 | C270_DBG("SET_INTERFACE FAILED"); |
va009039 | 9:fecabade834a | 66 | } |
va009039 | 9:fecabade834a | 67 | for(int i = 0; i < 16; i++) { |
va009039 | 9:fecabade834a | 68 | report_cc_count[i] = 0; |
va009039 | 9:fecabade834a | 69 | report_ps_cc_count[i] = 0; |
va009039 | 9:fecabade834a | 70 | } |
va009039 | 9:fecabade834a | 71 | LPC_USB->HcControl |= OR_CONTROL_PLE; // PeriodicListEnable |
va009039 | 9:fecabade834a | 72 | LPC_USB->HcControl |= OR_CONTROL_IE; // IsochronousEnable |
va009039 | 9:fecabade834a | 73 | |
va009039 | 9:fecabade834a | 74 | dev_connected = true; |
va009039 | 9:fecabade834a | 75 | return true; |
va009039 | 9:fecabade834a | 76 | } |
va009039 | 9:fecabade834a | 77 | } |
va009039 | 9:fecabade834a | 78 | } |
va009039 | 9:fecabade834a | 79 | init(); |
va009039 | 9:fecabade834a | 80 | return false; |
va009039 | 9:fecabade834a | 81 | } |
va009039 | 9:fecabade834a | 82 | |
va009039 | 9:fecabade834a | 83 | /*virtual*/ void USBHostC270::setVidPid(uint16_t vid, uint16_t pid) |
va009039 | 9:fecabade834a | 84 | { |
va009039 | 9:fecabade834a | 85 | C270_DBG("vid:%04x,pid:%04x", vid, pid); |
va009039 | 9:fecabade834a | 86 | if (vid == C270_VID && pid == C270_PID) { |
va009039 | 9:fecabade834a | 87 | c270_vid_pid_found = true; |
va009039 | 9:fecabade834a | 88 | } else { |
va009039 | 9:fecabade834a | 89 | c270_vid_pid_found = false; |
va009039 | 9:fecabade834a | 90 | } |
va009039 | 9:fecabade834a | 91 | } |
va009039 | 9:fecabade834a | 92 | |
va009039 | 9:fecabade834a | 93 | /*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 | 94 | { |
va009039 | 9:fecabade834a | 95 | 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 | 96 | if ((c270_intf == -1) && c270_vid_pid_found) { |
va009039 | 9:fecabade834a | 97 | c270_intf = intf_nb; |
va009039 | 9:fecabade834a | 98 | c270_device_found = true; |
va009039 | 9:fecabade834a | 99 | return true; |
va009039 | 9:fecabade834a | 100 | } |
va009039 | 9:fecabade834a | 101 | return false; |
va009039 | 9:fecabade834a | 102 | } |
va009039 | 9:fecabade834a | 103 | |
va009039 | 9:fecabade834a | 104 | /*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 | 105 | { |
va009039 | 9:fecabade834a | 106 | C270_DBG("intf_nb:%d,type:%d,dir:%d",intf_nb, type, dir); |
va009039 | 9:fecabade834a | 107 | return false; |
va009039 | 9:fecabade834a | 108 | } |
va009039 | 9:fecabade834a | 109 | |
va009039 | 9:fecabade834a | 110 | USB_TYPE USBHostC270::setInterfaceAlternate(uint8_t intf, uint8_t alt) |
va009039 | 9:fecabade834a | 111 | { |
va009039 | 9:fecabade834a | 112 | C270_DBG("intf:%d, alt:%d", intf, alt); |
va009039 | 9:fecabade834a | 113 | return host->controlWrite(dev, USB_HOST_TO_DEVICE | USB_RECIPIENT_INTERFACE, |
va009039 | 9:fecabade834a | 114 | SET_INTERFACE, alt, intf, NULL, 0); |
va009039 | 9:fecabade834a | 115 | } |
va009039 | 9:fecabade834a | 116 | |
va009039 | 9:fecabade834a | 117 | USB_TYPE USBHostC270::Control(int req, int cs, int index, uint8_t* buf, int size) |
va009039 | 9:fecabade834a | 118 | { |
va009039 | 9:fecabade834a | 119 | C270_DBG("req:%d,cs:%d,index:%d", req, cs,index); |
va009039 | 9:fecabade834a | 120 | if (req == SET_CUR) { |
va009039 | 9:fecabade834a | 121 | return host->controlWrite(dev, |
va009039 | 9:fecabade834a | 122 | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, |
va009039 | 9:fecabade834a | 123 | req, cs<<8, index, buf, size); |
va009039 | 9:fecabade834a | 124 | } |
va009039 | 9:fecabade834a | 125 | return host->controlRead(dev, |
va009039 | 9:fecabade834a | 126 | USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE, |
va009039 | 9:fecabade834a | 127 | req, cs<<8, index, buf, size); |
va009039 | 9:fecabade834a | 128 | } |
va009039 | 9:fecabade834a | 129 |