210 lines
6.5 KiB
C
210 lines
6.5 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#include "tusb.h"
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/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
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* Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
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*
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* Auto ProductID layout's Bitmap:
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* [MSB] HID | MSC | CDC [LSB]
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*/
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#define _PID_MAP(itf, n) ( (CFG_TUD_##itf) << (n) )
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#define USB_PID (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) )
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//------------- Device Descriptors -------------//
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tusb_desc_device_t const desc_device =
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{
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.bLength = sizeof(tusb_desc_device_t),
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.bDescriptorType = TUSB_DESC_DEVICE,
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.bcdUSB = 0x0200,
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#if CFG_TUD_CDC
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// Use Interface Association Descriptor (IAD) for CDC
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// As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
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.bDeviceClass = TUSB_CLASS_MISC,
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.bDeviceSubClass = MISC_SUBCLASS_COMMON,
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.bDeviceProtocol = MISC_PROTOCOL_IAD,
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#else
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.bDeviceClass = 0x00,
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.bDeviceSubClass = 0x00,
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.bDeviceProtocol = 0x00,
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#endif
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.bMaxPacketSize0 = CFG_TUD_ENDOINT0_SIZE,
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.idVendor = 0xCafe,
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.idProduct = USB_PID,
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.bcdDevice = 0x0100,
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.iManufacturer = 0x01,
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.iProduct = 0x02,
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.iSerialNumber = 0x03,
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.bNumConfigurations = 0x01
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};
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//------------- HID Report Descriptor -------------//
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#if CFG_TUD_HID
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enum
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{
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REPORT_ID_KEYBOARD = 1,
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REPORT_ID_MOUSE
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};
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uint8_t const desc_hid_report[] =
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{
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TUD_HID_REPORT_DESC_KEYBOARD( HID_REPORT_ID(REPORT_ID_KEYBOARD), ),
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TUD_HID_REPORT_DESC_MOUSE ( HID_REPORT_ID(REPORT_ID_MOUSE), )
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};
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// Invoked when received GET HID REPORT DESCRIPTOR
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// Application return pointer to descriptor
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// Descriptor contents must exist long enough for transfer to complete
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uint8_t const * tud_hid_descriptor_report_cb(void)
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{
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return desc_hid_report;
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}
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#endif
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//------------- Configuration Descriptor -------------//
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enum
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{
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#if CFG_TUD_CDC
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ITF_NUM_CDC = 0,
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ITF_NUM_CDC_DATA,
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#endif
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#if CFG_TUD_MSC
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ITF_NUM_MSC,
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#endif
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#if CFG_TUD_HID
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ITF_NUM_HID,
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#endif
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ITF_NUM_TOTAL
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};
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enum
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{
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CONFIG_TOTAL_LEN = TUD_CONFIG_DESC_LEN + CFG_TUD_CDC*TUD_CDC_DESC_LEN + CFG_TUD_MSC*TUD_MSC_DESC_LEN + CFG_TUD_HID*TUD_HID_DESC_LEN
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};
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#if CFG_TUSB_MCU == OPT_MCU_LPC175X_6X || CFG_TUSB_MCU == OPT_MCU_LPC177X_8X || CFG_TUSB_MCU == OPT_MCU_LPC40XX
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// LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number
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// 0 control, 1 In, 2 Bulk, 3 Iso, 4 In etc ...
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// Note: since CDC EP ( 1 & 2), HID (4) are spot-on, thus we only need to force
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// endpoint number for MSC to 5
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#define EPNUM_MSC 0x05
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#else
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#define EPNUM_MSC 0x03
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#endif
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uint8_t const desc_configuration[] =
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{
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// Interface count, string index, total length, attribute, power in mA
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TUD_CONFIG_DESCRIPTOR(ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
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#if CFG_TUD_CDC
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// Interface number, string index, EP notification address and size, EP data address (out, in) and size.
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TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, 0x81, 8, 0x02, 0x82, 64),
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#endif
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#if CFG_TUD_MSC
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// Interface number, string index, EP Out & EP In address, EP size
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TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 5, EPNUM_MSC, 0x80 | EPNUM_MSC, 64), // highspeed 512
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#endif
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#if CFG_TUD_HID
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// Interface number, string index, protocol, report descriptor len, EP In address, size & polling interval
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TUD_HID_DESCRIPTOR(ITF_NUM_HID, 6, HID_PROTOCOL_NONE, sizeof(desc_hid_report), 0x84, 16, 10)
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#endif
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};
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// Invoked when received GET DEVICE DESCRIPTOR
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// Application return pointer to descriptor
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uint8_t const * tud_descriptor_device_cb(void)
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{
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return (uint8_t const *) &desc_device;
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}
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// Invoked when received GET CONFIGURATION DESCRIPTOR
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// Application return pointer to descriptor
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// Descriptor contents must exist long enough for transfer to complete
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uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
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{
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(void) index; // for multiple configurations
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return desc_configuration;
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}
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//------------- String Descriptors -------------//
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// array of pointer to string descriptors
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char const* string_desc_arr [] =
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{
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(const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
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"TinyUSB", // 1: Manufacturer
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"TinyUSB Device", // 2: Product
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"123456", // 3: Serials, should use chip ID
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"TinyUSB CDC", // 4: CDC Interface
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"TinyUSB MSC", // 5: MSC Interface
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"TinyUSB HID" // 6: HID
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};
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static uint16_t _desc_str[32];
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// Invoked when received GET STRING DESCRIPTOR request
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// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
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uint16_t const* tud_descriptor_string_cb(uint8_t index)
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{
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uint8_t chr_count;
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if ( index == 0)
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{
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memcpy(&_desc_str[1], string_desc_arr[0], 2);
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chr_count = 1;
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}else
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{
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if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
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const char* str = string_desc_arr[index];
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// Cap at max char
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chr_count = strlen(str);
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if ( chr_count > 31 ) chr_count = 31;
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for(uint8_t i=0; i<chr_count; i++)
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{
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_desc_str[1+i] = str[i];
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}
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}
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// first byte is len, second byte is string type
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_desc_str[0] = TUD_DESC_STR_HEADER(chr_count);
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return _desc_str;
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}
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