diff options
Diffstat (limited to 'examples/device/audio_test_multi_rate/src/usb_descriptors.c')
| -rw-r--r-- | examples/device/audio_test_multi_rate/src/usb_descriptors.c | 93 |
1 files changed, 72 insertions, 21 deletions
diff --git a/examples/device/audio_test_multi_rate/src/usb_descriptors.c b/examples/device/audio_test_multi_rate/src/usb_descriptors.c index f50e70a25..1912a81e2 100644 --- a/examples/device/audio_test_multi_rate/src/usb_descriptors.c +++ b/examples/device/audio_test_multi_rate/src/usb_descriptors.c @@ -34,15 +34,14 @@ * Auto ProductID layout's Bitmap: * [MSB] AUDIO | MIDI | 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(AUDIO, 4) | _PID_MAP(VENDOR, 5) ) +#define PID_MAP(itf, n) ((CFG_TUD_##itf) ? (1 << (n)) : 0) +#define USB_PID (0x4000 | PID_MAP(CDC, 0) | PID_MAP(MSC, 1) | PID_MAP(HID, 2) | \ + PID_MAP(MIDI, 3) | PID_MAP(AUDIO, 4) | PID_MAP(VENDOR, 5) ) //--------------------------------------------------------------------+ // Device Descriptors //--------------------------------------------------------------------+ -tusb_desc_device_t const desc_device = -{ +static tusb_desc_device_t const desc_device = { .bLength = sizeof(tusb_desc_device_t), .bDescriptorType = TUSB_DESC_DEVICE, .bcdUSB = 0x0200, @@ -67,23 +66,19 @@ tusb_desc_device_t const desc_device = // Invoked when received GET DEVICE DESCRIPTOR // Application return pointer to descriptor -uint8_t const * tud_descriptor_device_cb(void) -{ +uint8_t const * tud_descriptor_device_cb(void) { return (uint8_t const *) &desc_device; } //--------------------------------------------------------------------+ // Configuration Descriptor //--------------------------------------------------------------------+ -enum -{ +enum { ITF_NUM_AUDIO_CONTROL = 0, ITF_NUM_AUDIO_STREAMING, ITF_NUM_TOTAL }; -#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + CFG_TUD_AUDIO * TUD_AUDIO_MIC_ONE_CH_2_FORMAT_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 etc ... @@ -97,24 +92,81 @@ enum #define EPNUM_AUDIO 0x01 #endif -uint8_t const desc_configuration[] = -{ +#define CONFIG_UAC1_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_AUDIO10_MIC_ONE_CH_DESC_LEN(3)) + +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, EP Out & EP In address, EP size + TUD_AUDIO10_MIC_ONE_CH_DESCRIPTOR(/*_itfnum*/ ITF_NUM_AUDIO_CONTROL, /*_stridx*/ 0, /*_nBytesPerSample*/ 2, /*_nBitsUsedPerSample*/ 16, /*_epin*/ 0x80 | EPNUM_AUDIO, /*_epsize*/ CFG_TUD_AUDIO10_FUNC_1_FORMAT_1_EP_SZ_IN, 32000, 48000, 96000) +}; + +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_MIC_ONE_CH_2_FORMAT_DESC_LEN) + +uint8_t const desc2_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), // Interface number, string index, EP Out & EP In address, EP size - TUD_AUDIO_MIC_ONE_CH_2_FORMAT_DESCRIPTOR(/*_itfnum*/ ITF_NUM_AUDIO_CONTROL, /*_stridx*/ 0, /*_epin*/ 0x80 | EPNUM_AUDIO) + TUD_AUDIO20_MIC_ONE_CH_2_FORMAT_DESCRIPTOR(/*_itfnum*/ ITF_NUM_AUDIO_CONTROL, /*_stridx*/ 0, /*_epin*/ 0x80 | EPNUM_AUDIO) +}; + +TU_VERIFY_STATIC(sizeof(desc2_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_t), + .bDescriptorType = TUSB_DESC_DEVICE, + .bcdUSB = 0x0200, + + .bDeviceClass = TUSB_CLASS_MISC, + .bDeviceSubClass = MISC_SUBCLASS_COMMON, + .bDeviceProtocol = MISC_PROTOCOL_IAD, + + .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE, + .bNumConfigurations = 0x01, + .bReserved = 0x00 }; -TU_VERIFY_STATIC(sizeof(desc_configuration) == CONFIG_TOTAL_LEN, "Incorrect size"); +// 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 : desc2_uac2_configuration; +} + +#endif// highspeed // 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) -{ +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 desc2_uac2_configuration; + } +#else + return desc_uac1_configuration; +#endif } //--------------------------------------------------------------------+ @@ -130,8 +182,7 @@ enum { }; // array of pointer to string descriptors -char const* string_desc_arr [] = -{ +char const* string_desc_arr [] = { (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409) "PaniRCorp", // 1: Manufacturer "MicNode", // 2: Product |