Changed file extensions from .c to .cpp
Fork of USBMIDI by
usbdevice.cpp@3:1c9f95100210, 2016-04-29 (annotated)
- Committer:
- KrissyHam
- Date:
- Fri Apr 29 01:46:03 2016 +0000
- Revision:
- 3:1c9f95100210
- Parent:
- usbdevice.c@2:10d694d6ccdc
Changed file extensions from .c to .cpp
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
simon | 2:10d694d6ccdc | 1 | /* @license The MIT License |
simon | 1:ff74eabe02cd | 2 | * Copyright (c) 2011 mux, simon |
simon | 1:ff74eabe02cd | 3 | * |
simon | 1:ff74eabe02cd | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
simon | 1:ff74eabe02cd | 5 | * of this software and associated documentation files (the "Software"), to deal |
simon | 1:ff74eabe02cd | 6 | * in the Software without restriction, including without limitation the rights |
simon | 1:ff74eabe02cd | 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
simon | 1:ff74eabe02cd | 8 | * copies of the Software, and to permit persons to whom the Software is |
simon | 1:ff74eabe02cd | 9 | * furnished to do so, subject to the following conditions: |
simon | 1:ff74eabe02cd | 10 | * |
simon | 1:ff74eabe02cd | 11 | * The above copyright notice and this permission notice shall be included in |
simon | 1:ff74eabe02cd | 12 | * all copies or substantial portions of the Software. |
simon | 1:ff74eabe02cd | 13 | * |
simon | 1:ff74eabe02cd | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
simon | 1:ff74eabe02cd | 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
simon | 1:ff74eabe02cd | 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
simon | 1:ff74eabe02cd | 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
simon | 1:ff74eabe02cd | 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
simon | 1:ff74eabe02cd | 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
simon | 1:ff74eabe02cd | 20 | * THE SOFTWARE. |
simon | 1:ff74eabe02cd | 21 | */ |
simon | 1:ff74eabe02cd | 22 | |
simon | 1:ff74eabe02cd | 23 | #include "usbcore.h" |
simon | 1:ff74eabe02cd | 24 | #include "mbed.h" |
simon | 1:ff74eabe02cd | 25 | |
simon | 1:ff74eabe02cd | 26 | #define STANDARD_DEVICE_REQUEST (0x00) |
simon | 1:ff74eabe02cd | 27 | #define STANDARD_INTERFACE_REQUEST (0x01) |
simon | 1:ff74eabe02cd | 28 | #define STANDARD_ENDPOINT_REQUEST (0x02) |
simon | 1:ff74eabe02cd | 29 | #define CLASS_DEVICE_REQUEST (0x20) |
simon | 1:ff74eabe02cd | 30 | #define CLASS_INTERFACE_REQUEST (0x21) |
simon | 1:ff74eabe02cd | 31 | #define CLASS_ENDPOINT_REQUEST (0x22) |
simon | 1:ff74eabe02cd | 32 | #define VENDOR_DEVICE_REQUEST (0x40) |
simon | 1:ff74eabe02cd | 33 | #define VENDOR_INTERFACE_REQUEST (0x41) |
simon | 1:ff74eabe02cd | 34 | #define VENDOR_ENDPOINT_REQUEST (0x42) |
simon | 1:ff74eabe02cd | 35 | #define GET_STATUS (0x00) |
simon | 1:ff74eabe02cd | 36 | #define CLEAR_FEATURE (0x01) |
simon | 1:ff74eabe02cd | 37 | #define SET_FEATURE (0x03) |
simon | 1:ff74eabe02cd | 38 | #define SET_ADDRESS (0x05) |
simon | 1:ff74eabe02cd | 39 | #define GET_DESCRIPTOR (0x06) |
simon | 1:ff74eabe02cd | 40 | #define SET_DESCRIPTOR (0x07) |
simon | 1:ff74eabe02cd | 41 | #define GET_CONFIGURATION (0x08) |
simon | 1:ff74eabe02cd | 42 | #define SET_CONFIGURATION (0x09) |
simon | 1:ff74eabe02cd | 43 | #define DEVICE_DESCRIPTOR (0x01) |
simon | 1:ff74eabe02cd | 44 | #define CONFIG_DESCRIPTOR (0x02) |
simon | 1:ff74eabe02cd | 45 | #define STRING_DESCRIPTOR (0x03) |
simon | 1:ff74eabe02cd | 46 | #define INTERFACE_DESCRIPTOR (0x04) |
simon | 1:ff74eabe02cd | 47 | #define ENDPOINT_DESCRIPTOR (0x05) |
simon | 1:ff74eabe02cd | 48 | #define QUALIFIER_DESCRIPTOR (0x06) |
simon | 1:ff74eabe02cd | 49 | #define unpack(x) (x & 0xFF),((x >> 8) & 0xFF) |
simon | 1:ff74eabe02cd | 50 | |
simon | 1:ff74eabe02cd | 51 | // setup packet |
simon | 1:ff74eabe02cd | 52 | struct { |
simon | 1:ff74eabe02cd | 53 | uint8_t bmRequestType; |
simon | 1:ff74eabe02cd | 54 | uint8_t bRequest; |
simon | 1:ff74eabe02cd | 55 | uint16_t wValue; |
simon | 1:ff74eabe02cd | 56 | uint16_t wIndex; |
simon | 1:ff74eabe02cd | 57 | uint16_t wLength; |
simon | 1:ff74eabe02cd | 58 | } __attribute__((packed)) setup = {0}; |
simon | 1:ff74eabe02cd | 59 | |
simon | 1:ff74eabe02cd | 60 | // data packet |
simon | 1:ff74eabe02cd | 61 | struct { |
simon | 1:ff74eabe02cd | 62 | uint8_t *data; |
simon | 1:ff74eabe02cd | 63 | uint8_t size; |
simon | 1:ff74eabe02cd | 64 | uint8_t sent; |
simon | 1:ff74eabe02cd | 65 | } transfer = {0}; |
simon | 1:ff74eabe02cd | 66 | |
simon | 1:ff74eabe02cd | 67 | uint8_t device_descriptor[] = { |
simon | 1:ff74eabe02cd | 68 | 0x12, // Descriptor size in bytes (12h) |
simon | 1:ff74eabe02cd | 69 | DEVICE_DESCRIPTOR, // The constant DEVICE (01h) |
simon | 1:ff74eabe02cd | 70 | unpack(0x0200), // US2B specification release number (BCD) |
simon | 1:ff74eabe02cd | 71 | 0x00, // Class code |
simon | 1:ff74eabe02cd | 72 | 0x00, // Subclass code |
simon | 1:ff74eabe02cd | 73 | 0x00, // Protocol Code |
simon | 1:ff74eabe02cd | 74 | MAX_EP0_PSIZE, // Maximum packet size for endpoint zero |
simon | 1:ff74eabe02cd | 75 | unpack(0x0763), // Vendor ID |
simon | 1:ff74eabe02cd | 76 | unpack(0x0198), // Product ID |
simon | 1:ff74eabe02cd | 77 | unpack(0x0001), // Device release number (BCD) |
simon | 1:ff74eabe02cd | 78 | 0x00, // Index of string descriptor for the manufacturer |
simon | 1:ff74eabe02cd | 79 | 0x00, // Index of string descriptor for the product |
simon | 1:ff74eabe02cd | 80 | 0x00, // Index of string descriptor for the serial number |
simon | 1:ff74eabe02cd | 81 | 0x01, // Number of possible configurations |
simon | 1:ff74eabe02cd | 82 | }; |
simon | 1:ff74eabe02cd | 83 | |
simon | 1:ff74eabe02cd | 84 | uint8_t config_descriptor[]={ |
simon | 1:ff74eabe02cd | 85 | 0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50, // configuration descriptor |
simon | 1:ff74eabe02cd | 86 | // The Audio Interface Collection |
simon | 1:ff74eabe02cd | 87 | 0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor |
simon | 1:ff74eabe02cd | 88 | 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor |
simon | 1:ff74eabe02cd | 89 | 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors |
simon | 1:ff74eabe02cd | 90 | 0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00, // Class-Specific MS Interface Header Descriptor |
simon | 1:ff74eabe02cd | 91 | |
simon | 1:ff74eabe02cd | 92 | // MIDI IN JACKS |
simon | 1:ff74eabe02cd | 93 | 0x06, 0x24, 0x02, 0x01, 0x01, 0x00, |
simon | 1:ff74eabe02cd | 94 | 0x06, 0x24, 0x02, 0x02, 0x02, 0x00, |
simon | 1:ff74eabe02cd | 95 | |
simon | 1:ff74eabe02cd | 96 | // MIDI OUT JACKS |
simon | 1:ff74eabe02cd | 97 | 0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00, |
simon | 1:ff74eabe02cd | 98 | 0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00, |
simon | 1:ff74eabe02cd | 99 | |
simon | 1:ff74eabe02cd | 100 | // OUT endpoint descriptor |
simon | 1:ff74eabe02cd | 101 | 0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, |
simon | 1:ff74eabe02cd | 102 | 0x05, 0x25, 0x01, 0x01, 0x01, |
simon | 1:ff74eabe02cd | 103 | |
simon | 1:ff74eabe02cd | 104 | // IN endpoint descriptor |
simon | 1:ff74eabe02cd | 105 | 0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, |
simon | 1:ff74eabe02cd | 106 | 0x05, 0x25, 0x01, 0x01, 0x03, |
simon | 1:ff74eabe02cd | 107 | }; |
simon | 1:ff74eabe02cd | 108 | |
simon | 1:ff74eabe02cd | 109 | void ep0_in(); |
simon | 1:ff74eabe02cd | 110 | |
simon | 1:ff74eabe02cd | 111 | void data_in_stage(uint8_t *desc, uint8_t length) { |
simon | 1:ff74eabe02cd | 112 | transfer.sent = 0; |
simon | 1:ff74eabe02cd | 113 | transfer.data = desc; |
simon | 1:ff74eabe02cd | 114 | transfer.size = length; |
simon | 1:ff74eabe02cd | 115 | ep0_in(); |
simon | 1:ff74eabe02cd | 116 | } |
simon | 1:ff74eabe02cd | 117 | |
simon | 1:ff74eabe02cd | 118 | void status_in_stage() { |
simon | 1:ff74eabe02cd | 119 | ep_write(EP1, 0, 0); // ZLEP for status stage |
simon | 1:ff74eabe02cd | 120 | } |
simon | 1:ff74eabe02cd | 121 | |
simon | 1:ff74eabe02cd | 122 | void ep0_setup() { |
simon | 1:ff74eabe02cd | 123 | ep_read(EP0,(uint8_t*) &setup); |
simon | 1:ff74eabe02cd | 124 | |
simon | 1:ff74eabe02cd | 125 | switch (setup.bmRequestType & 0x7f) { // mask direction |
simon | 1:ff74eabe02cd | 126 | case STANDARD_DEVICE_REQUEST: |
simon | 1:ff74eabe02cd | 127 | switch (setup.bRequest) { |
simon | 1:ff74eabe02cd | 128 | case GET_DESCRIPTOR: |
simon | 1:ff74eabe02cd | 129 | switch ((setup.wValue>>8)) { |
simon | 1:ff74eabe02cd | 130 | case DEVICE_DESCRIPTOR: // device descriptor request |
simon | 1:ff74eabe02cd | 131 | case QUALIFIER_DESCRIPTOR: // device qualifier descriptor |
simon | 1:ff74eabe02cd | 132 | data_in_stage(device_descriptor, sizeof(device_descriptor)); |
simon | 1:ff74eabe02cd | 133 | break; |
simon | 1:ff74eabe02cd | 134 | case CONFIG_DESCRIPTOR: // configuration descriptor |
simon | 1:ff74eabe02cd | 135 | data_in_stage(config_descriptor, setup.wLength); |
simon | 1:ff74eabe02cd | 136 | break; |
simon | 1:ff74eabe02cd | 137 | case STRING_DESCRIPTOR: |
simon | 1:ff74eabe02cd | 138 | break; |
simon | 1:ff74eabe02cd | 139 | default: |
simon | 1:ff74eabe02cd | 140 | break; |
simon | 1:ff74eabe02cd | 141 | } |
simon | 1:ff74eabe02cd | 142 | break; |
simon | 1:ff74eabe02cd | 143 | case SET_ADDRESS: |
simon | 1:ff74eabe02cd | 144 | usb_set_address((uint8_t) (setup.wValue & 0xFF)); |
simon | 1:ff74eabe02cd | 145 | status_in_stage(); |
simon | 1:ff74eabe02cd | 146 | break; |
simon | 1:ff74eabe02cd | 147 | case SET_CONFIGURATION: |
simon | 1:ff74eabe02cd | 148 | if (!setup.wValue) { |
simon | 1:ff74eabe02cd | 149 | break; |
simon | 1:ff74eabe02cd | 150 | } |
simon | 1:ff74eabe02cd | 151 | ep_realize(EP4, MAX_EPn_PSIZE); |
simon | 1:ff74eabe02cd | 152 | ep_realize(EP5, MAX_EPn_PSIZE); |
simon | 1:ff74eabe02cd | 153 | status_in_stage(); |
simon | 1:ff74eabe02cd | 154 | usb_configure(1); |
simon | 1:ff74eabe02cd | 155 | break; |
simon | 1:ff74eabe02cd | 156 | default: |
simon | 1:ff74eabe02cd | 157 | break; |
simon | 1:ff74eabe02cd | 158 | } |
simon | 1:ff74eabe02cd | 159 | break; |
simon | 1:ff74eabe02cd | 160 | default: |
simon | 1:ff74eabe02cd | 161 | break; |
simon | 1:ff74eabe02cd | 162 | } |
simon | 1:ff74eabe02cd | 163 | } |
simon | 1:ff74eabe02cd | 164 | |
simon | 1:ff74eabe02cd | 165 | void ep0_in() { |
simon | 1:ff74eabe02cd | 166 | if ((setup.bmRequestType & 0x80) && transfer.size) { // device to host |
simon | 1:ff74eabe02cd | 167 | if (transfer.size > MAX_EP0_PSIZE) { |
simon | 1:ff74eabe02cd | 168 | transfer.sent = MAX_EP0_PSIZE; |
simon | 1:ff74eabe02cd | 169 | } else { |
simon | 1:ff74eabe02cd | 170 | transfer.sent = transfer.size; |
simon | 1:ff74eabe02cd | 171 | } |
simon | 1:ff74eabe02cd | 172 | ep_write(EP1, transfer.data, transfer.sent); |
simon | 1:ff74eabe02cd | 173 | transfer.data += transfer.sent; |
simon | 1:ff74eabe02cd | 174 | transfer.size -= transfer.sent; |
simon | 1:ff74eabe02cd | 175 | } |
simon | 1:ff74eabe02cd | 176 | } |
simon | 1:ff74eabe02cd | 177 | |
simon | 1:ff74eabe02cd | 178 | void ep0_out() { |
simon | 1:ff74eabe02cd | 179 | uint8_t buf[64]; |
simon | 1:ff74eabe02cd | 180 | ep_read(EP0, buf); |
simon | 1:ff74eabe02cd | 181 | } |