nikos chalikias / Mbed 2 deprecated n-bed-USBHostC270_example

testing n-Bed with a Logitech C270 camera

Dependencies:   USBHost mbed

Fork of USBHostC270_example by Norimasa Okamoto

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?

UserRevisionLine numberNew 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