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author | Joey Castillo <jose.castillo@gmail.com> | 2021-08-28 12:50:18 -0400 |
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committer | Joey Castillo <jose.castillo@gmail.com> | 2021-08-28 12:50:18 -0400 |
commit | 39a5c822a2a2e798e2e39ff8a98b7af84253026c (patch) | |
tree | fa157c98d3aea0d4f996e4415aa2a7ad1093ac05 /tinyusb/examples/device/dynamic_configuration/src/usb_descriptors.c | |
parent | c9e00b83bbdcb05058806d915ec4fff3cf4e596f (diff) | |
download | Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.tar.gz Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.tar.bz2 Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.zip |
add tinyusb
Diffstat (limited to 'tinyusb/examples/device/dynamic_configuration/src/usb_descriptors.c')
-rwxr-xr-x | tinyusb/examples/device/dynamic_configuration/src/usb_descriptors.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/tinyusb/examples/device/dynamic_configuration/src/usb_descriptors.c b/tinyusb/examples/device/dynamic_configuration/src/usb_descriptors.c new file mode 100755 index 00000000..9ccb3765 --- /dev/null +++ b/tinyusb/examples/device/dynamic_configuration/src/usb_descriptors.c @@ -0,0 +1,243 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + */ + +#include "tusb.h" +#include "bsp/board.h" + +/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug. + * Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC. + * + * Auto ProductID layout's Bitmap: + * [MSB] HID | MSC | CDC [LSB] + */ +#define _PID_MAP(itf, n) ( (CFG_TUD_##itf) << (n) ) +#define USB_PID (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \ + _PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4) ) + +// Configuration mode +// 0 : enumerated as CDC/MIDI. Board button is not pressed when enumerating +// 1 : enumerated as MSC. Board button is pressed when enumerating +static uint32_t mode = 0; + +//--------------------------------------------------------------------+ +// Device Descriptors +//--------------------------------------------------------------------+ +tusb_desc_device_t const desc_device_0 = +{ + .bLength = sizeof(tusb_desc_device_t), + .bDescriptorType = TUSB_DESC_DEVICE, + .bcdUSB = 0x0200, + + // Use Interface Association Descriptor (IAD) for CDC + // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1) + .bDeviceClass = TUSB_CLASS_MISC, + .bDeviceSubClass = MISC_SUBCLASS_COMMON, + .bDeviceProtocol = MISC_PROTOCOL_IAD, + + .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE, + .idVendor = 0xCafe, + .idProduct = USB_PID, + .bcdDevice = 0x0100, + + .iManufacturer = 0x01, + .iProduct = 0x02, + .iSerialNumber = 0x03, + + .bNumConfigurations = 0x01 +}; + +tusb_desc_device_t const desc_device_1 = +{ + .bLength = sizeof(tusb_desc_device_t), + .bDescriptorType = TUSB_DESC_DEVICE, + .bcdUSB = 0x0200, + .bDeviceClass = 0, + .bDeviceSubClass = 0, + .bDeviceProtocol = 0, + + .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE, + .idVendor = 0xCafe, + .idProduct = USB_PID + 11, // should be different PID than desc0 + .bcdDevice = 0x0100, + + .iManufacturer = 0x01, + .iProduct = 0x02, + .iSerialNumber = 0x03, + + .bNumConfigurations = 0x01 +}; + +// Invoked when received GET DEVICE DESCRIPTOR +// Application return pointer to descriptor +uint8_t const * tud_descriptor_device_cb(void) +{ + mode = board_button_read(); + return (uint8_t const*) (mode ? &desc_device_1 : &desc_device_0); +} + +//--------------------------------------------------------------------+ +// Configuration Descriptor +//--------------------------------------------------------------------+ + +enum +{ + ITF_0_NUM_CDC = 0, + ITF_0_NUM_CDC_DATA, + ITF_0_NUM_MIDI, + ITF_0_NUM_MIDI_STREAMING, + ITF_0_NUM_TOTAL +}; + +enum +{ + ITF_1_NUM_MSC = 0, + ITF_1_NUM_TOTAL +}; + +#define CONFIG_0_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN + TUD_MIDI_DESC_LEN) +#define CONFIG_1_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_MSC_DESC_LEN) + +#if CFG_TUSB_MCU == OPT_MCU_LPC175X_6X || CFG_TUSB_MCU == OPT_MCU_LPC177X_8X || CFG_TUSB_MCU == OPT_MCU_LPC40XX + // LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number + // 0 control, 1 In, 2 Bulk, 3 Iso, 4 In, 5 Bulk etc ... + #define EPNUM_0_CDC_NOTIF 0x81 + #define EPNUM_0_CDC_OUT 0x02 + #define EPNUM_0_CDC_IN 0x82 + + #define EPNUM_0_MIDI_OUT 0x05 + #define EPNUM_0_MIDI_IN 0x85 + + #define EPNUM_1_MSC_OUT 0x02 + #define EPNUM_1_MSC_IN 0x82 + +#elif CFG_TUSB_MCU == OPT_MCU_SAMG + // SAMG doesn't support a same endpoint number with different direction IN and OUT + // e.g EP1 OUT & EP1 IN cannot exist together + #define EPNUM_0_CDC_NOTIF 0x81 + #define EPNUM_0_CDC_OUT 0x02 + #define EPNUM_0_CDC_IN 0x83 + + #define EPNUM_0_MIDI_OUT 0x04 + #define EPNUM_0_MIDI_IN 0x85 + + #define EPNUM_1_MSC_OUT 0x01 + #define EPNUM_1_MSC_IN 0x82 + +#else + #define EPNUM_0_CDC_NOTIF 0x81 + #define EPNUM_0_CDC_OUT 0x02 + #define EPNUM_0_CDC_IN 0x82 + + #define EPNUM_0_MIDI_OUT 0x03 + #define EPNUM_0_MIDI_IN 0x83 + + #define EPNUM_1_MSC_OUT 0x01 + #define EPNUM_1_MSC_IN 0x81 +#endif + +uint8_t const desc_configuration_0[] = +{ + // Config number, interface count, string index, total length, attribute, power in mA + TUD_CONFIG_DESCRIPTOR(1, ITF_0_NUM_TOTAL, 0, CONFIG_0_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100), + + // Interface number, string index, EP notification address and size, EP data address (out, in) and size. + TUD_CDC_DESCRIPTOR(ITF_0_NUM_CDC, 0, EPNUM_0_CDC_NOTIF, 8, EPNUM_0_CDC_OUT, EPNUM_0_CDC_IN, 64), + + // Interface number, string index, EP Out & EP In address, EP size + TUD_MIDI_DESCRIPTOR(ITF_0_NUM_MIDI, 0, EPNUM_0_MIDI_OUT, EPNUM_0_MIDI_IN, TUD_OPT_HIGH_SPEED ? 512 : 64), +}; + + +uint8_t const desc_configuraiton_1[] = +{ + // Config number, interface count, string index, total length, attribute, power in mA + TUD_CONFIG_DESCRIPTOR(1, ITF_1_NUM_TOTAL, 0, CONFIG_1_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100), + + // Interface number, string index, EP Out & EP In address, EP size + TUD_MSC_DESCRIPTOR(ITF_1_NUM_MSC, 0, EPNUM_1_MSC_OUT, EPNUM_1_MSC_IN, TUD_OPT_HIGH_SPEED ? 512 : 64), +}; + + +// Invoked when received GET CONFIGURATION DESCRIPTOR +// Application return pointer to descriptor +// Descriptor contents must exist long enough for transfer to complete +uint8_t const * tud_descriptor_configuration_cb(uint8_t index) +{ + (void) index; // for multiple configurations + return mode ? desc_configuraiton_1 : desc_configuration_0; +} + +//--------------------------------------------------------------------+ +// String Descriptors +//--------------------------------------------------------------------+ + +// array of pointer to string descriptors +char const* string_desc_arr [] = +{ + (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409) + "TinyUSB", // 1: Manufacturer + "TinyUSB Device", // 2: Product + "123456", // 3: Serials, should use chip ID +}; + +static uint16_t _desc_str[32]; + +// Invoked when received GET STRING DESCRIPTOR request +// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete +uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) +{ + (void) langid; + + uint8_t chr_count; + + if ( index == 0) + { + memcpy(&_desc_str[1], string_desc_arr[0], 2); + chr_count = 1; + }else + { + // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors. + // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors + + if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL; + + const char* str = string_desc_arr[index]; + + // Cap at max char + chr_count = strlen(str); + if ( chr_count > 31 ) chr_count = 31; + + // Convert ASCII string into UTF-16 + for(uint8_t i=0; i<chr_count; i++) + { + _desc_str[1+i] = str[i]; + } + } + + // first byte is length (including header), second byte is string type + _desc_str[0] = (TUSB_DESC_STRING << 8 ) | (2*chr_count + 2); + + return _desc_str; +} |