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@10:387c49b2fc7e, 2013-03-17 (annotated)

Committer:
va009039
Date:
Sun Mar 17 13:22:13 2013 +0000
Revision:
10:387c49b2fc7e
Parent:
9:fecabade834a
Child:
11:6a8eef89eb22
add readJPEG(), detach does not support.

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 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 m_isoEp = NULL;
va009039 10:387c49b2fc7e 21 clearOnResult();
va009039 9:fecabade834a 22 host = USBHost::getHostInst();
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 10:387c49b2fc7e 38 C270_DBG("dev_connected: %d", dev_connected);
va009039 9:fecabade834a 39 return dev_connected;
va009039 9:fecabade834a 40 }
va009039 9:fecabade834a 41
va009039 9:fecabade834a 42 bool USBHostC270::connect()
va009039 9:fecabade834a 43 {
va009039 10:387c49b2fc7e 44 C270_DBG("dev_connected: %d", dev_connected);
va009039 9:fecabade834a 45 if (dev_connected) {
va009039 9:fecabade834a 46 return true;
va009039 9:fecabade834a 47 }
va009039 9:fecabade834a 48
va009039 9:fecabade834a 49 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
va009039 9:fecabade834a 50 if ((dev = host->getDevice(i)) != NULL) {
va009039 9:fecabade834a 51
va009039 9:fecabade834a 52 C270_DBG("Trying to connect C270 device\r\n");
va009039 9:fecabade834a 53
va009039 9:fecabade834a 54 if(host->enumerate(dev, this))
va009039 9:fecabade834a 55 break;
va009039 9:fecabade834a 56
va009039 9:fecabade834a 57 if (c270_device_found) {
va009039 9:fecabade834a 58 USB_INFO("New C270 device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, c270_intf);
va009039 9:fecabade834a 59 dev->setName("C270", c270_intf);
va009039 10:387c49b2fc7e 60 host->registerDriver(dev, c270_intf, this, &USBHostC270::onDisconnect);
va009039 9:fecabade834a 61 int addr = dev->getAddress();
va009039 9:fecabade834a 62 m_isoEp = new IsochronousEp(addr, C270_EN, C270_MPS);
va009039 9:fecabade834a 63 uint8_t buf[26];
va009039 9:fecabade834a 64 memset(buf, 0, sizeof(buf));
va009039 9:fecabade834a 65 buf[2] = _formatIndex;
va009039 9:fecabade834a 66 buf[3] = _frameIndex;
va009039 9:fecabade834a 67 *reinterpret_cast<uint32_t*>(buf+4) = _interval;
va009039 9:fecabade834a 68 USB_TYPE res = Control(SET_CUR, VS_COMMIT_CONTROL, 1, buf, sizeof(buf));
va009039 9:fecabade834a 69 if (res != USB_TYPE_OK) {
va009039 9:fecabade834a 70 C270_DBG("SET_CUR VS_COMMIT_CONTROL FAILED");
va009039 9:fecabade834a 71 }
va009039 9:fecabade834a 72 res = setInterfaceAlternate(1, C270_IF_ALT); // alt=1 packet size = 192
va009039 9:fecabade834a 73 if (res != USB_TYPE_OK) {
va009039 9:fecabade834a 74 C270_DBG("SET_INTERFACE FAILED");
va009039 9:fecabade834a 75 }
va009039 9:fecabade834a 76 for(int i = 0; i < 16; i++) {
va009039 9:fecabade834a 77 report_cc_count[i] = 0;
va009039 9:fecabade834a 78 report_ps_cc_count[i] = 0;
va009039 9:fecabade834a 79 }
va009039 9:fecabade834a 80 LPC_USB->HcControl |= OR_CONTROL_PLE; // PeriodicListEnable
va009039 9:fecabade834a 81 LPC_USB->HcControl |= OR_CONTROL_IE; // IsochronousEnable
va009039 9:fecabade834a 82
va009039 9:fecabade834a 83 dev_connected = true;
va009039 9:fecabade834a 84 return true;
va009039 9:fecabade834a 85 }
va009039 9:fecabade834a 86 }
va009039 9:fecabade834a 87 }
va009039 9:fecabade834a 88 init();
va009039 9:fecabade834a 89 return false;
va009039 9:fecabade834a 90 }
va009039 9:fecabade834a 91
va009039 10:387c49b2fc7e 92 void USBHostC270::onDisconnect()
va009039 10:387c49b2fc7e 93 {
va009039 10:387c49b2fc7e 94 C270_DBG("dev_connected: %d", dev_connected);
va009039 10:387c49b2fc7e 95 // TODO
va009039 10:387c49b2fc7e 96 if (m_isoEp) {
va009039 10:387c49b2fc7e 97 m_isoEp->disconnect();
va009039 10:387c49b2fc7e 98 }
va009039 10:387c49b2fc7e 99 init();
va009039 10:387c49b2fc7e 100 }
va009039 10:387c49b2fc7e 101
va009039 9:fecabade834a 102 /*virtual*/ void USBHostC270::setVidPid(uint16_t vid, uint16_t pid)
va009039 9:fecabade834a 103 {
va009039 9:fecabade834a 104 C270_DBG("vid:%04x,pid:%04x", vid, pid);
va009039 9:fecabade834a 105 if (vid == C270_VID && pid == C270_PID) {
va009039 9:fecabade834a 106 c270_vid_pid_found = true;
va009039 9:fecabade834a 107 } else {
va009039 9:fecabade834a 108 c270_vid_pid_found = false;
va009039 9:fecabade834a 109 }
va009039 9:fecabade834a 110 }
va009039 9:fecabade834a 111
va009039 9:fecabade834a 112 /*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 113 {
va009039 9:fecabade834a 114 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 115 if ((c270_intf == -1) && c270_vid_pid_found) {
va009039 9:fecabade834a 116 c270_intf = intf_nb;
va009039 10:387c49b2fc7e 117 c270_vid_pid_found = false;
va009039 9:fecabade834a 118 c270_device_found = true;
va009039 9:fecabade834a 119 return true;
va009039 9:fecabade834a 120 }
va009039 9:fecabade834a 121 return false;
va009039 9:fecabade834a 122 }
va009039 9:fecabade834a 123
va009039 9:fecabade834a 124 /*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 125 {
va009039 9:fecabade834a 126 C270_DBG("intf_nb:%d,type:%d,dir:%d",intf_nb, type, dir);
va009039 9:fecabade834a 127 return false;
va009039 9:fecabade834a 128 }
va009039 9:fecabade834a 129
va009039 10:387c49b2fc7e 130 #define SEQ_READ_IDOL 0
va009039 10:387c49b2fc7e 131 #define SEQ_READ_EXEC 1
va009039 10:387c49b2fc7e 132 #define SEQ_READ_DONE 2
va009039 10:387c49b2fc7e 133
va009039 10:387c49b2fc7e 134 int USBHostC270::readJPEG(uint8_t* buf, int size, int timeout_ms) {
va009039 10:387c49b2fc7e 135 _buf = buf;
va009039 10:387c49b2fc7e 136 _pos = 0;
va009039 10:387c49b2fc7e 137 _size = size;
va009039 10:387c49b2fc7e 138 _seq = SEQ_READ_IDOL;
va009039 10:387c49b2fc7e 139 setOnResult(this, &USBHostC270::callback_motion_jpeg);
va009039 10:387c49b2fc7e 140 Timer timeout_t;
va009039 10:387c49b2fc7e 141 timeout_t.reset();
va009039 10:387c49b2fc7e 142 timeout_t.start();
va009039 10:387c49b2fc7e 143 while(timeout_t.read_ms() < timeout_ms && _seq != SEQ_READ_DONE) {
va009039 10:387c49b2fc7e 144 poll(timeout_ms);
va009039 10:387c49b2fc7e 145 }
va009039 10:387c49b2fc7e 146 return _pos;
va009039 9:fecabade834a 147 }
va009039 9:fecabade834a 148
va009039 10:387c49b2fc7e 149 /* virtual */ void USBHostC270::outputJPEG(uint8_t c, int status) { // from decodeMJPEG
va009039 10:387c49b2fc7e 150 if (_seq == SEQ_READ_IDOL) {
va009039 10:387c49b2fc7e 151 if (status == JPEG_START) {
va009039 10:387c49b2fc7e 152 _pos = 0;
va009039 10:387c49b2fc7e 153 _seq = SEQ_READ_EXEC;
va009039 10:387c49b2fc7e 154 }
va009039 9:fecabade834a 155 }
va009039 10:387c49b2fc7e 156 if (_seq == SEQ_READ_EXEC) {
va009039 10:387c49b2fc7e 157 if (_pos < _size) {
va009039 10:387c49b2fc7e 158 _buf[_pos++] = c;
va009039 10:387c49b2fc7e 159 }
va009039 10:387c49b2fc7e 160 if (status == JPEG_END) {
va009039 10:387c49b2fc7e 161 _seq = SEQ_READ_DONE;
va009039 10:387c49b2fc7e 162 }
va009039 10:387c49b2fc7e 163 }
va009039 9:fecabade834a 164 }
va009039 9:fecabade834a 165
va009039 10:387c49b2fc7e 166 void USBHostC270::callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len) {
va009039 10:387c49b2fc7e 167 inputPacket(buf, len);
va009039 10:387c49b2fc7e 168 }