diff options
Diffstat (limited to 'examples/device/uac2_headset/src/usb_descriptors.c')
| -rw-r--r-- | examples/device/uac2_headset/src/usb_descriptors.c | 87 |
1 files changed, 79 insertions, 8 deletions
diff --git a/examples/device/uac2_headset/src/usb_descriptors.c b/examples/device/uac2_headset/src/usb_descriptors.c index 7b1a41161..e4fbbf8a5 100644 --- a/examples/device/uac2_headset/src/usb_descriptors.c +++ b/examples/device/uac2_headset/src/usb_descriptors.c @@ -110,22 +110,93 @@ uint8_t const * tud_descriptor_device_cb(void) #define EPNUM_AUDIO_INT 0x02 #endif -uint8_t const desc_configuration[] = +#define CONFIG_UAC1_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_AUDIO10_HEADSET_STEREO_DESC_LEN(2)) + +uint8_t const desc_uac1_configuration[] = +{ + // Config number, interface count, string index, total length, attribute, power in mA + TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_UAC1_TOTAL_LEN, 0x00, 100), + + // Interface number, string index, bytes per sample RX/TX, bits used per sample RX/TX, EP Out & EP In address, EP sizes, sample rate + TUD_AUDIO10_HEADSET_STEREO_DESCRIPTOR(ITF_NUM_AUDIO_CONTROL, 4, \ + CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX, \ + CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_TX, \ + EPNUM_AUDIO_OUT, CFG_TUD_AUDIO10_FUNC_1_FORMAT_1_EP_SZ_OUT, \ + EPNUM_AUDIO_IN | 0x80, CFG_TUD_AUDIO10_FUNC_1_FORMAT_1_EP_SZ_IN, \ + 44100, 48000) +}; + +TU_VERIFY_STATIC(sizeof(desc_uac1_configuration) == CONFIG_UAC1_TOTAL_LEN, "Incorrect size"); + +#if TUD_OPT_HIGH_SPEED + +#define CONFIG_UAC2_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_AUDIO20_HEADSET_STEREO_DESC_LEN) + +uint8_t const desc_uac2_configuration[] = { // Config number, interface count, string index, total length, attribute, power in mA - TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100), + TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_UAC2_TOTAL_LEN, 0x00, 100), + + // String index, EP Out & EP In address, EP Interrupt address + TUD_AUDIO20_HEADSET_STEREO_DESCRIPTOR(5, EPNUM_AUDIO_OUT, EPNUM_AUDIO_IN | 0x80, EPNUM_AUDIO_INT | 0x80) +}; + +TU_VERIFY_STATIC(sizeof(desc_uac2_configuration) == CONFIG_UAC2_TOTAL_LEN, "Incorrect size"); + + +// device qualifier is mostly similar to device descriptor since we don't change configuration based on speed +tusb_desc_device_qualifier_t const desc_device_qualifier = +{ + .bLength = sizeof(tusb_desc_device_qualifier_t), + .bDescriptorType = TUSB_DESC_DEVICE_QUALIFIER, + .bcdUSB = 0x0200, + + .bDeviceClass = TUSB_CLASS_MISC, + .bDeviceSubClass = MISC_SUBCLASS_COMMON, + .bDeviceProtocol = MISC_PROTOCOL_IAD, - // Interface number, string index, EP Out & EP In address, EP size - TUD_AUDIO_HEADSET_STEREO_DESCRIPTOR(2, EPNUM_AUDIO_OUT, EPNUM_AUDIO_IN | 0x80, EPNUM_AUDIO_INT | 0x80) + .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE, + .bNumConfigurations = 0x01, + .bReserved = 0x00 }; +// Invoked when received GET DEVICE QUALIFIER DESCRIPTOR request +// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete. +// device_qualifier descriptor describes information about a high-speed capable device that would +// change if the device were operating at the other speed. If not highspeed capable stall this request. +uint8_t const *tud_descriptor_device_qualifier_cb(void) +{ + return (uint8_t const *) &desc_device_qualifier; +} + +// Invoked when received GET OTHER SEED CONFIGURATION DESCRIPTOR request +// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete +// Configuration descriptor in the other speed e.g if high speed then this is for full speed and vice versa +uint8_t const *tud_descriptor_other_speed_configuration_cb(uint8_t index) +{ + (void) index; // for multiple configurations + + // if link speed is high return fullspeed config, and vice versa + return (tud_speed_get() == TUSB_SPEED_HIGH) ? desc_uac1_configuration : desc_uac2_configuration; +} +#endif + // 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 desc_configuration; +#if TUD_OPT_HIGH_SPEED + // Although we are highspeed, host may be fullspeed. + if(tud_speed_get() == TUSB_SPEED_FULL) { + return desc_uac1_configuration; + } else { + return desc_uac2_configuration; + } +#else + return desc_uac1_configuration; +#endif } //--------------------------------------------------------------------+ @@ -145,10 +216,10 @@ static char const *string_desc_arr[] = { (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409) "TinyUSB", // 1: Manufacturer - "TinyUSB headset", // 2: Product + "TinyUSB Headset", // 2: Product NULL, // 3: Serials will use unique ID if possible - "TinyUSB Speakers", // 4: Audio Interface - "TinyUSB Microphone", // 5: Audio Interface + "TinyUSB UAC1 Headset", // 4: Function + "TinyUSB UAC2 Headset", // 5: Function }; static uint16_t _desc_str[32 + 1]; |