USB composite device example program, drag-and-drop flash writer.
Dependencies: SWD USBDevice mbed BaseDAP
tests/USBMSD2/USB_CDC.cpp@1:ea8e179320d7, 2013-09-28 (annotated)
- Committer:
- va009039
- Date:
- Sat Sep 28 03:21:14 2013 +0000
- Revision:
- 1:ea8e179320d7
add USBMSD_Drop class. add CDC(Virtual COM) and HID(for example CMSIS-DAP), but KL25Z not work.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
va009039 | 1:ea8e179320d7 | 1 | /* Copyright (c) 2010-2011 mbed.org, MIT License |
va009039 | 1:ea8e179320d7 | 2 | * |
va009039 | 1:ea8e179320d7 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
va009039 | 1:ea8e179320d7 | 4 | * and associated documentation files (the "Software"), to deal in the Software without |
va009039 | 1:ea8e179320d7 | 5 | * restriction, including without limitation the rights to use, copy, modify, merge, publish, |
va009039 | 1:ea8e179320d7 | 6 | * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the |
va009039 | 1:ea8e179320d7 | 7 | * Software is furnished to do so, subject to the following conditions: |
va009039 | 1:ea8e179320d7 | 8 | * |
va009039 | 1:ea8e179320d7 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
va009039 | 1:ea8e179320d7 | 10 | * substantial portions of the Software. |
va009039 | 1:ea8e179320d7 | 11 | * |
va009039 | 1:ea8e179320d7 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
va009039 | 1:ea8e179320d7 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
va009039 | 1:ea8e179320d7 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
va009039 | 1:ea8e179320d7 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
va009039 | 1:ea8e179320d7 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
va009039 | 1:ea8e179320d7 | 17 | */ |
va009039 | 1:ea8e179320d7 | 18 | |
va009039 | 1:ea8e179320d7 | 19 | #include "stdint.h" |
va009039 | 1:ea8e179320d7 | 20 | #include "USB_CDC.h" |
va009039 | 1:ea8e179320d7 | 21 | #define MY_DEBUG |
va009039 | 1:ea8e179320d7 | 22 | #include "mydebug.h" |
va009039 | 1:ea8e179320d7 | 23 | |
va009039 | 1:ea8e179320d7 | 24 | #define CDC_SET_LINE_CODING 0x20 |
va009039 | 1:ea8e179320d7 | 25 | #define CDC_GET_LINE_CODING 0x21 |
va009039 | 1:ea8e179320d7 | 26 | #define CDC_SET_CONTROL_LINE_STATE 0x22 |
va009039 | 1:ea8e179320d7 | 27 | #define CDC_SEND_BREAK 0x23 |
va009039 | 1:ea8e179320d7 | 28 | |
va009039 | 1:ea8e179320d7 | 29 | #define MAX_CDC_REPORT_SIZE MAX_PACKET_SIZE_EPBULK |
va009039 | 1:ea8e179320d7 | 30 | |
va009039 | 1:ea8e179320d7 | 31 | USB_CDC::USB_CDC(USBDevice* device) : _device(device), _rx_buf(128) |
va009039 | 1:ea8e179320d7 | 32 | { |
va009039 | 1:ea8e179320d7 | 33 | terminal_connected = false; |
va009039 | 1:ea8e179320d7 | 34 | //USBDevice::connect(); |
va009039 | 1:ea8e179320d7 | 35 | } |
va009039 | 1:ea8e179320d7 | 36 | |
va009039 | 1:ea8e179320d7 | 37 | void USB_CDC::putc(int c) |
va009039 | 1:ea8e179320d7 | 38 | { |
va009039 | 1:ea8e179320d7 | 39 | if (terminal_connected) { |
va009039 | 1:ea8e179320d7 | 40 | uint8_t buf[1]; |
va009039 | 1:ea8e179320d7 | 41 | buf[0] = c; |
va009039 | 1:ea8e179320d7 | 42 | _device->write(CDC_EPBULK_IN, buf, sizeof(buf), MAX_CDC_REPORT_SIZE); |
va009039 | 1:ea8e179320d7 | 43 | } |
va009039 | 1:ea8e179320d7 | 44 | } |
va009039 | 1:ea8e179320d7 | 45 | |
va009039 | 1:ea8e179320d7 | 46 | int USB_CDC::getc() |
va009039 | 1:ea8e179320d7 | 47 | { |
va009039 | 1:ea8e179320d7 | 48 | uint8_t c = 0; |
va009039 | 1:ea8e179320d7 | 49 | while (_rx_buf.isEmpty()); |
va009039 | 1:ea8e179320d7 | 50 | _rx_buf.dequeue(&c); |
va009039 | 1:ea8e179320d7 | 51 | return c; |
va009039 | 1:ea8e179320d7 | 52 | } |
va009039 | 1:ea8e179320d7 | 53 | |
va009039 | 1:ea8e179320d7 | 54 | int USB_CDC::readable() |
va009039 | 1:ea8e179320d7 | 55 | { |
va009039 | 1:ea8e179320d7 | 56 | return _rx_buf.available() > 0 ? 1 : 0; |
va009039 | 1:ea8e179320d7 | 57 | } |
va009039 | 1:ea8e179320d7 | 58 | |
va009039 | 1:ea8e179320d7 | 59 | int USB_CDC::writeable() |
va009039 | 1:ea8e179320d7 | 60 | { |
va009039 | 1:ea8e179320d7 | 61 | return 1; |
va009039 | 1:ea8e179320d7 | 62 | } |
va009039 | 1:ea8e179320d7 | 63 | |
va009039 | 1:ea8e179320d7 | 64 | void USB_CDC::baud_callback(int baudrate) |
va009039 | 1:ea8e179320d7 | 65 | { |
va009039 | 1:ea8e179320d7 | 66 | DBG("baudrate=%d", baudrate); |
va009039 | 1:ea8e179320d7 | 67 | } |
va009039 | 1:ea8e179320d7 | 68 | |
va009039 | 1:ea8e179320d7 | 69 | void USB_CDC::send_break_callback(uint16_t duration) |
va009039 | 1:ea8e179320d7 | 70 | { |
va009039 | 1:ea8e179320d7 | 71 | DBG("duration=%04x", duration); |
va009039 | 1:ea8e179320d7 | 72 | } |
va009039 | 1:ea8e179320d7 | 73 | |
va009039 | 1:ea8e179320d7 | 74 | void USB_CDC::control_line_callback(int rts, int dtr) |
va009039 | 1:ea8e179320d7 | 75 | { |
va009039 | 1:ea8e179320d7 | 76 | DBG("rts=%d, dtr=%d", rts, dtr); |
va009039 | 1:ea8e179320d7 | 77 | } |
va009039 | 1:ea8e179320d7 | 78 | |
va009039 | 1:ea8e179320d7 | 79 | bool USB_CDC::send(uint8_t * buffer, uint32_t size) { |
va009039 | 1:ea8e179320d7 | 80 | return _device->write(CDC_EPBULK_IN, buffer, size, MAX_CDC_REPORT_SIZE); |
va009039 | 1:ea8e179320d7 | 81 | } |
va009039 | 1:ea8e179320d7 | 82 | |
va009039 | 1:ea8e179320d7 | 83 | bool USB_CDC::readEP(uint8_t * buffer, uint32_t * size) { |
va009039 | 1:ea8e179320d7 | 84 | if (!_device->readEP(CDC_EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE)) |
va009039 | 1:ea8e179320d7 | 85 | return false; |
va009039 | 1:ea8e179320d7 | 86 | if (!_device->readStart(CDC_EPBULK_OUT, MAX_CDC_REPORT_SIZE)) |
va009039 | 1:ea8e179320d7 | 87 | return false; |
va009039 | 1:ea8e179320d7 | 88 | return true; |
va009039 | 1:ea8e179320d7 | 89 | } |
va009039 | 1:ea8e179320d7 | 90 | |
va009039 | 1:ea8e179320d7 | 91 | bool USB_CDC::readEP_NB(uint8_t * buffer, uint32_t * size) { |
va009039 | 1:ea8e179320d7 | 92 | if (!_device->readEP_NB(CDC_EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE)) |
va009039 | 1:ea8e179320d7 | 93 | return false; |
va009039 | 1:ea8e179320d7 | 94 | if (!_device->readStart(CDC_EPBULK_OUT, MAX_CDC_REPORT_SIZE)) |
va009039 | 1:ea8e179320d7 | 95 | return false; |
va009039 | 1:ea8e179320d7 | 96 | return true; |
va009039 | 1:ea8e179320d7 | 97 | } |
va009039 | 1:ea8e179320d7 | 98 | |
va009039 | 1:ea8e179320d7 | 99 | bool USB_CDC::Request_callback(CONTROL_TRANSFER* transfer) |
va009039 | 1:ea8e179320d7 | 100 | { |
va009039 | 1:ea8e179320d7 | 101 | static uint8_t cdc_line_coding[7]= {0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08}; |
va009039 | 1:ea8e179320d7 | 102 | |
va009039 | 1:ea8e179320d7 | 103 | if (transfer->setup.bmRequestType.Type == CLASS_TYPE) { |
va009039 | 1:ea8e179320d7 | 104 | switch (transfer->setup.bRequest) { |
va009039 | 1:ea8e179320d7 | 105 | case CDC_SET_LINE_CODING: // 0x20 |
va009039 | 1:ea8e179320d7 | 106 | transfer->remaining = 7; |
va009039 | 1:ea8e179320d7 | 107 | transfer->notify = true; |
va009039 | 1:ea8e179320d7 | 108 | terminal_connected = true; |
va009039 | 1:ea8e179320d7 | 109 | return true; |
va009039 | 1:ea8e179320d7 | 110 | |
va009039 | 1:ea8e179320d7 | 111 | case CDC_GET_LINE_CODING: // x021 |
va009039 | 1:ea8e179320d7 | 112 | transfer->remaining = 7; |
va009039 | 1:ea8e179320d7 | 113 | transfer->ptr = cdc_line_coding; |
va009039 | 1:ea8e179320d7 | 114 | transfer->direction = DEVICE_TO_HOST; |
va009039 | 1:ea8e179320d7 | 115 | return true; |
va009039 | 1:ea8e179320d7 | 116 | |
va009039 | 1:ea8e179320d7 | 117 | case CDC_SET_CONTROL_LINE_STATE: // 0x22 |
va009039 | 1:ea8e179320d7 | 118 | control_line_callback((transfer->setup.wValue>>1) & 1, (transfer->setup.wValue) & 1); |
va009039 | 1:ea8e179320d7 | 119 | terminal_connected = false; |
va009039 | 1:ea8e179320d7 | 120 | return true; |
va009039 | 1:ea8e179320d7 | 121 | |
va009039 | 1:ea8e179320d7 | 122 | case CDC_SEND_BREAK: // 0x23 |
va009039 | 1:ea8e179320d7 | 123 | send_break_callback(transfer->setup.wValue); |
va009039 | 1:ea8e179320d7 | 124 | return true; |
va009039 | 1:ea8e179320d7 | 125 | } |
va009039 | 1:ea8e179320d7 | 126 | } |
va009039 | 1:ea8e179320d7 | 127 | return false; |
va009039 | 1:ea8e179320d7 | 128 | } |
va009039 | 1:ea8e179320d7 | 129 | |
va009039 | 1:ea8e179320d7 | 130 | static uint32_t LD32(uint8_t* buf) |
va009039 | 1:ea8e179320d7 | 131 | { |
va009039 | 1:ea8e179320d7 | 132 | return buf[0]|buf[1]<<8|buf[2]<<16|buf[3]<<24; |
va009039 | 1:ea8e179320d7 | 133 | } |
va009039 | 1:ea8e179320d7 | 134 | |
va009039 | 1:ea8e179320d7 | 135 | bool USB_CDC::RequestCompleted_callback(CONTROL_TRANSFER* transfer, uint8_t* buf, int length) |
va009039 | 1:ea8e179320d7 | 136 | { |
va009039 | 1:ea8e179320d7 | 137 | int baudrate; |
va009039 | 1:ea8e179320d7 | 138 | if (transfer->setup.bmRequestType.Type == CLASS_TYPE) { |
va009039 | 1:ea8e179320d7 | 139 | switch (transfer->setup.bRequest) { |
va009039 | 1:ea8e179320d7 | 140 | case CDC_SET_LINE_CODING: // 0x20 |
va009039 | 1:ea8e179320d7 | 141 | baudrate = LD32(buf); |
va009039 | 1:ea8e179320d7 | 142 | baud_callback(baudrate); |
va009039 | 1:ea8e179320d7 | 143 | return true; |
va009039 | 1:ea8e179320d7 | 144 | } |
va009039 | 1:ea8e179320d7 | 145 | } |
va009039 | 1:ea8e179320d7 | 146 | DBG_HEX((uint8_t*)transfer, sizeof(CONTROL_TRANSFER)); |
va009039 | 1:ea8e179320d7 | 147 | return false; |
va009039 | 1:ea8e179320d7 | 148 | } |
va009039 | 1:ea8e179320d7 | 149 | |
va009039 | 1:ea8e179320d7 | 150 | bool USB_CDC::EPBULK_OUT_callback() // virtual COM to target |
va009039 | 1:ea8e179320d7 | 151 | { |
va009039 | 1:ea8e179320d7 | 152 | uint8_t buf[MAX_CDC_REPORT_SIZE]; |
va009039 | 1:ea8e179320d7 | 153 | uint32_t size = 0; |
va009039 | 1:ea8e179320d7 | 154 | //we read the packet received and put it on the circular buffer |
va009039 | 1:ea8e179320d7 | 155 | _device->readEP(CDC_EPBULK_OUT, buf, &size, MAX_CDC_REPORT_SIZE); |
va009039 | 1:ea8e179320d7 | 156 | for(int i = 0; i < size; i++) { |
va009039 | 1:ea8e179320d7 | 157 | _rx_buf.queue(buf[i]); |
va009039 | 1:ea8e179320d7 | 158 | } |
va009039 | 1:ea8e179320d7 | 159 | |
va009039 | 1:ea8e179320d7 | 160 | // We reactivate the endpoint to receive next characters |
va009039 | 1:ea8e179320d7 | 161 | _device->readStart(CDC_EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
va009039 | 1:ea8e179320d7 | 162 | return true; |
va009039 | 1:ea8e179320d7 | 163 | } |