Norimasa Okamoto / USBLocalFileSystem

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Dependencies:   USBDevice

Dependents:   KL46Z-lpc81isp lpcterm2

USBMSD2/USB_CDC.cpp@0:39eb4d5b97df, 2014-05-03 (annotated)

Committer:
va009039
Date:
Sat May 03 11:21:37 2014 +0000
Revision:
0:39eb4d5b97df
Child:
4:8f6857784854
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 0:39eb4d5b97df 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
va009039 0:39eb4d5b97df 2 *
va009039 0:39eb4d5b97df 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
va009039 0:39eb4d5b97df 4 * and associated documentation files (the "Software"), to deal in the Software without
va009039 0:39eb4d5b97df 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
va009039 0:39eb4d5b97df 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
va009039 0:39eb4d5b97df 7 * Software is furnished to do so, subject to the following conditions:
va009039 0:39eb4d5b97df 8 *
va009039 0:39eb4d5b97df 9 * The above copyright notice and this permission notice shall be included in all copies or
va009039 0:39eb4d5b97df 10 * substantial portions of the Software.
va009039 0:39eb4d5b97df 11 *
va009039 0:39eb4d5b97df 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
va009039 0:39eb4d5b97df 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
va009039 0:39eb4d5b97df 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
va009039 0:39eb4d5b97df 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
va009039 0:39eb4d5b97df 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
va009039 0:39eb4d5b97df 17 */
va009039 0:39eb4d5b97df 18
va009039 0:39eb4d5b97df 19 #include "USB_CDC.h"
va009039 0:39eb4d5b97df 20
va009039 0:39eb4d5b97df 21 #if (DEBUG2 > 3)
va009039 0:39eb4d5b97df 22 #define CDC_DBG(...) do{fprintf(stderr,"[%s@%d] ",__PRETTY_FUNCTION__,__LINE__);fprintf(stderr,__VA_ARGS__);fprintf(stderr,"\r\n");} while(0);
va009039 0:39eb4d5b97df 23 #define CDC_DBG_HEX(A,B) while(0);
va009039 0:39eb4d5b97df 24 #else
va009039 0:39eb4d5b97df 25 #define CDC_DBG(...) while(0)
va009039 0:39eb4d5b97df 26 #define CDC_DBG_HEX(A,B) while(0)
va009039 0:39eb4d5b97df 27 #endif
va009039 0:39eb4d5b97df 28
va009039 0:39eb4d5b97df 29 #define CDC_SET_LINE_CODING 0x20
va009039 0:39eb4d5b97df 30 #define CDC_GET_LINE_CODING 0x21
va009039 0:39eb4d5b97df 31 #define CDC_SET_CONTROL_LINE_STATE 0x22
va009039 0:39eb4d5b97df 32 #define CDC_SEND_BREAK 0x23
va009039 0:39eb4d5b97df 33
va009039 0:39eb4d5b97df 34 #define MAX_CDC_REPORT_SIZE MAX_PACKET_SIZE_EPBULK
va009039 0:39eb4d5b97df 35
va009039 0:39eb4d5b97df 36 USB_CDC::USB_CDC(USBDevice* device) : _device(device), _rx_buf(128)
va009039 0:39eb4d5b97df 37 {
va009039 0:39eb4d5b97df 38 CDC_DBG("device=%p", device);
va009039 0:39eb4d5b97df 39
va009039 0:39eb4d5b97df 40 terminal_connected = false;
va009039 0:39eb4d5b97df 41 //USBDevice::connect();
va009039 0:39eb4d5b97df 42 }
va009039 0:39eb4d5b97df 43
va009039 0:39eb4d5b97df 44 void USB_CDC::putc(int c)
va009039 0:39eb4d5b97df 45 {
va009039 0:39eb4d5b97df 46 if (terminal_connected) {
va009039 0:39eb4d5b97df 47 uint8_t buf[1];
va009039 0:39eb4d5b97df 48 buf[0] = c;
va009039 0:39eb4d5b97df 49 _device->write(CDC_EPBULK_IN, buf, sizeof(buf), MAX_CDC_REPORT_SIZE);
va009039 0:39eb4d5b97df 50 }
va009039 0:39eb4d5b97df 51 }
va009039 0:39eb4d5b97df 52
va009039 0:39eb4d5b97df 53 int USB_CDC::getc()
va009039 0:39eb4d5b97df 54 {
va009039 0:39eb4d5b97df 55 uint8_t c = 0;
va009039 0:39eb4d5b97df 56 while (_rx_buf.isEmpty());
va009039 0:39eb4d5b97df 57 _rx_buf.dequeue(&c);
va009039 0:39eb4d5b97df 58 return c;
va009039 0:39eb4d5b97df 59 }
va009039 0:39eb4d5b97df 60
va009039 0:39eb4d5b97df 61 int USB_CDC::readable()
va009039 0:39eb4d5b97df 62 {
va009039 0:39eb4d5b97df 63 return _rx_buf.available() > 0 ? 1 : 0;
va009039 0:39eb4d5b97df 64 }
va009039 0:39eb4d5b97df 65
va009039 0:39eb4d5b97df 66 int USB_CDC::writeable()
va009039 0:39eb4d5b97df 67 {
va009039 0:39eb4d5b97df 68 return 1;
va009039 0:39eb4d5b97df 69 }
va009039 0:39eb4d5b97df 70
va009039 0:39eb4d5b97df 71 void USB_CDC::baud_callback(int baudrate)
va009039 0:39eb4d5b97df 72 {
va009039 0:39eb4d5b97df 73 CDC_DBG("baudrate=%d", baudrate);
va009039 0:39eb4d5b97df 74 }
va009039 0:39eb4d5b97df 75
va009039 0:39eb4d5b97df 76 void USB_CDC::send_break_callback(uint16_t duration)
va009039 0:39eb4d5b97df 77 {
va009039 0:39eb4d5b97df 78 CDC_DBG("duration=%04x", duration);
va009039 0:39eb4d5b97df 79 }
va009039 0:39eb4d5b97df 80
va009039 0:39eb4d5b97df 81 void USB_CDC::control_line_callback(int rts, int dtr)
va009039 0:39eb4d5b97df 82 {
va009039 0:39eb4d5b97df 83 CDC_DBG("rts=%d, dtr=%d", rts, dtr);
va009039 0:39eb4d5b97df 84 }
va009039 0:39eb4d5b97df 85
va009039 0:39eb4d5b97df 86 bool USB_CDC::send(uint8_t * buffer, uint32_t size) {
va009039 0:39eb4d5b97df 87 return _device->write(CDC_EPBULK_IN, buffer, size, MAX_CDC_REPORT_SIZE);
va009039 0:39eb4d5b97df 88 }
va009039 0:39eb4d5b97df 89
va009039 0:39eb4d5b97df 90 bool USB_CDC::readEP(uint8_t * buffer, uint32_t * size) {
va009039 0:39eb4d5b97df 91 if (!_device->readEP(CDC_EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE))
va009039 0:39eb4d5b97df 92 return false;
va009039 0:39eb4d5b97df 93 if (!_device->readStart(CDC_EPBULK_OUT, MAX_CDC_REPORT_SIZE))
va009039 0:39eb4d5b97df 94 return false;
va009039 0:39eb4d5b97df 95 return true;
va009039 0:39eb4d5b97df 96 }
va009039 0:39eb4d5b97df 97
va009039 0:39eb4d5b97df 98 bool USB_CDC::readEP_NB(uint8_t * buffer, uint32_t * size) {
va009039 0:39eb4d5b97df 99 if (!_device->readEP_NB(CDC_EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE))
va009039 0:39eb4d5b97df 100 return false;
va009039 0:39eb4d5b97df 101 if (!_device->readStart(CDC_EPBULK_OUT, MAX_CDC_REPORT_SIZE))
va009039 0:39eb4d5b97df 102 return false;
va009039 0:39eb4d5b97df 103 return true;
va009039 0:39eb4d5b97df 104 }
va009039 0:39eb4d5b97df 105
va009039 0:39eb4d5b97df 106 bool USB_CDC::Request_callback(CONTROL_TRANSFER* transfer)
va009039 0:39eb4d5b97df 107 {
va009039 0:39eb4d5b97df 108 static uint8_t cdc_line_coding[7]= {0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08};
va009039 0:39eb4d5b97df 109
va009039 0:39eb4d5b97df 110 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
va009039 0:39eb4d5b97df 111 switch (transfer->setup.bRequest) {
va009039 0:39eb4d5b97df 112 case CDC_SET_LINE_CODING: // 0x20
va009039 0:39eb4d5b97df 113 transfer->remaining = 7;
va009039 0:39eb4d5b97df 114 transfer->notify = true;
va009039 0:39eb4d5b97df 115 terminal_connected = true;
va009039 0:39eb4d5b97df 116 return true;
va009039 0:39eb4d5b97df 117
va009039 0:39eb4d5b97df 118 case CDC_GET_LINE_CODING: // x021
va009039 0:39eb4d5b97df 119 transfer->remaining = 7;
va009039 0:39eb4d5b97df 120 transfer->ptr = cdc_line_coding;
va009039 0:39eb4d5b97df 121 transfer->direction = DEVICE_TO_HOST;
va009039 0:39eb4d5b97df 122 return true;
va009039 0:39eb4d5b97df 123
va009039 0:39eb4d5b97df 124 case CDC_SET_CONTROL_LINE_STATE: // 0x22
va009039 0:39eb4d5b97df 125 control_line_callback((transfer->setup.wValue>>1) & 1, (transfer->setup.wValue) & 1);
va009039 0:39eb4d5b97df 126 terminal_connected = false;
va009039 0:39eb4d5b97df 127 return true;
va009039 0:39eb4d5b97df 128
va009039 0:39eb4d5b97df 129 case CDC_SEND_BREAK: // 0x23
va009039 0:39eb4d5b97df 130 send_break_callback(transfer->setup.wValue);
va009039 0:39eb4d5b97df 131 return true;
va009039 0:39eb4d5b97df 132 }
va009039 0:39eb4d5b97df 133 }
va009039 0:39eb4d5b97df 134 return false;
va009039 0:39eb4d5b97df 135 }
va009039 0:39eb4d5b97df 136
va009039 0:39eb4d5b97df 137 static uint32_t LD32(uint8_t* buf)
va009039 0:39eb4d5b97df 138 {
va009039 0:39eb4d5b97df 139 return buf[0]|(buf[1]<<8)|(buf[2]<<16)|(buf[3]<<24);
va009039 0:39eb4d5b97df 140 }
va009039 0:39eb4d5b97df 141
va009039 0:39eb4d5b97df 142 bool USB_CDC::RequestCompleted_callback(CONTROL_TRANSFER* transfer, uint8_t* buf, int length)
va009039 0:39eb4d5b97df 143 {
va009039 0:39eb4d5b97df 144 CDC_DBG("transer=%p", transfer);
va009039 0:39eb4d5b97df 145 int baudrate;
va009039 0:39eb4d5b97df 146 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
va009039 0:39eb4d5b97df 147 switch (transfer->setup.bRequest) {
va009039 0:39eb4d5b97df 148 case CDC_SET_LINE_CODING: // 0x20
va009039 0:39eb4d5b97df 149 baudrate = LD32(buf);
va009039 0:39eb4d5b97df 150 baud_callback(baudrate);
va009039 0:39eb4d5b97df 151 return true;
va009039 0:39eb4d5b97df 152 }
va009039 0:39eb4d5b97df 153 }
va009039 0:39eb4d5b97df 154 CDC_DBG_HEX((uint8_t*)transfer, sizeof(CONTROL_TRANSFER));
va009039 0:39eb4d5b97df 155 return false;
va009039 0:39eb4d5b97df 156 }
va009039 0:39eb4d5b97df 157
va009039 0:39eb4d5b97df 158 bool USB_CDC::EPBULK_OUT_callback() // virtual COM to target
va009039 0:39eb4d5b97df 159 {
va009039 0:39eb4d5b97df 160 uint8_t buf[MAX_CDC_REPORT_SIZE];
va009039 0:39eb4d5b97df 161 uint32_t size = 0;
va009039 0:39eb4d5b97df 162 //we read the packet received and put it on the circular buffer
va009039 0:39eb4d5b97df 163 _device->readEP(CDC_EPBULK_OUT, buf, &size, MAX_CDC_REPORT_SIZE);
va009039 0:39eb4d5b97df 164 CDC_DBG("size=%d", size);
va009039 0:39eb4d5b97df 165 for(int i = 0; i < size; i++) {
va009039 0:39eb4d5b97df 166 _rx_buf.queue(buf[i]);
va009039 0:39eb4d5b97df 167 }
va009039 0:39eb4d5b97df 168
va009039 0:39eb4d5b97df 169 // We reactivate the endpoint to receive next characters
va009039 0:39eb4d5b97df 170 _device->readStart(CDC_EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
va009039 0:39eb4d5b97df 171 return true;
va009039 0:39eb4d5b97df 172 }