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teensy3: usb_desc: Extract EMIT_CDC_DESCRIPTORS() macro
Create a macro to emit all values for the various CDC descriptors, and use it. Note that this does not include the CDC Interface Association Descriptor, as the latter is needed only for composite USB devices. This will avoid duplication when adding support for multiple USB serial interfaces. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>teensy4-core
Geert Uytterhoeven
5 年之前
+ 66
- 63
teensy3/usb_desc.c
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| @@ -580,6 +580,71 @@ static uint8_t flightsim_report_desc[] = { | |||
| // USB Configuration | |||
| // ************************************************************** | |||
| #define EMIT_CDC_DESCRIPTORS(prefix) \ | |||
| /* interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 */ \ | |||
| 9, /* bLength */ \ | |||
| 4, /* bDescriptorType */ \ | |||
| prefix ## _STATUS_INTERFACE, /* bInterfaceNumber */ \ | |||
| 0, /* bAlternateSetting */ \ | |||
| 1, /* bNumEndpoints */ \ | |||
| 0x02, /* bInterfaceClass */ \ | |||
| 0x02, /* bInterfaceSubClass */ \ | |||
| 0x01, /* bInterfaceProtocol */ \ | |||
| 0, /* iInterface */ \ | |||
| /* CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26 */ \ | |||
| 5, /* bFunctionLength */ \ | |||
| 0x24, /* bDescriptorType */ \ | |||
| 0x00, /* bDescriptorSubtype */ \ | |||
| 0x10, 0x01, /* bcdCDC */ \ | |||
| /* Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27 */\ | |||
| 5, /* bFunctionLength */ \ | |||
| 0x24, /* bDescriptorType */ \ | |||
| 0x01, /* bDescriptorSubtype */ \ | |||
| 0x01, /* bmCapabilities */ \ | |||
| 1, /* bDataInterface */ \ | |||
| /* Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28 */\ | |||
| 4, /* bFunctionLength */ \ | |||
| 0x24, /* bDescriptorType */ \ | |||
| 0x02, /* bDescriptorSubtype */ \ | |||
| 0x06, /* bmCapabilities */ \ | |||
| /* Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33 */ \ | |||
| 5, /* bFunctionLength */ \ | |||
| 0x24, /* bDescriptorType */ \ | |||
| 0x06, /* bDescriptorSubtype */ \ | |||
| prefix ## _STATUS_INTERFACE, /* bMasterInterface */ \ | |||
| prefix ## _DATA_INTERFACE, /* bSlaveInterface0 */ \ | |||
| /* endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 */ \ | |||
| 7, /* bLength */ \ | |||
| 5, /* bDescriptorType */ \ | |||
| prefix ## _ACM_ENDPOINT | 0x80, /* bEndpointAddress */ \ | |||
| 0x03, /* bmAttributes (0x03=intr) */ \ | |||
| prefix ## _ACM_SIZE, 0, /* wMaxPacketSize */ \ | |||
| 64, /* bInterval */ \ | |||
| /* interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 */ \ | |||
| 9, /* bLength */ \ | |||
| 4, /* bDescriptorType */ \ | |||
| prefix ## _DATA_INTERFACE, /* bInterfaceNumber */ \ | |||
| 0, /* bAlternateSetting */ \ | |||
| 2, /* bNumEndpoints */ \ | |||
| 0x0A, /* bInterfaceClass */ \ | |||
| 0x00, /* bInterfaceSubClass */ \ | |||
| 0x00, /* bInterfaceProtocol */ \ | |||
| 0, /* iInterface */ \ | |||
| /* endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 */ \ | |||
| 7, /* bLength */ \ | |||
| 5, /* bDescriptorType */ \ | |||
| prefix ## _RX_ENDPOINT, /* bEndpointAddress */ \ | |||
| 0x02, /* bmAttributes (0x02=bulk) */ \ | |||
| prefix ## _RX_SIZE, 0, /* wMaxPacketSize */ \ | |||
| 0, /* bInterval */ \ | |||
| /* endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 */ \ | |||
| 7, /* bLength */ \ | |||
| 5, /* bDescriptorType */ \ | |||
| prefix ## _TX_ENDPOINT | 0x80, /* bEndpointAddress */ \ | |||
| 0x02, /* bmAttributes (0x02=bulk) */ \ | |||
| prefix ## _TX_SIZE, 0, /* wMaxPacketSize */ \ | |||
| 0 /* bInterval */ \ | |||
| // USB Configuration Descriptor. This huge descriptor tells all | |||
| // of the devices capbilities. | |||
| static uint8_t config_descriptor[CONFIG_DESC_SIZE] = { | |||
| @@ -607,69 +672,7 @@ static uint8_t config_descriptor[CONFIG_DESC_SIZE] = { | |||
| #endif | |||
| #ifdef CDC_DATA_INTERFACE | |||
| // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 | |||
| 9, // bLength | |||
| 4, // bDescriptorType | |||
| CDC_STATUS_INTERFACE, // bInterfaceNumber | |||
| 0, // bAlternateSetting | |||
| 1, // bNumEndpoints | |||
| 0x02, // bInterfaceClass | |||
| 0x02, // bInterfaceSubClass | |||
| 0x01, // bInterfaceProtocol | |||
| 0, // iInterface | |||
| // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26 | |||
| 5, // bFunctionLength | |||
| 0x24, // bDescriptorType | |||
| 0x00, // bDescriptorSubtype | |||
| 0x10, 0x01, // bcdCDC | |||
| // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27 | |||
| 5, // bFunctionLength | |||
| 0x24, // bDescriptorType | |||
| 0x01, // bDescriptorSubtype | |||
| 0x01, // bmCapabilities | |||
| 1, // bDataInterface | |||
| // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28 | |||
| 4, // bFunctionLength | |||
| 0x24, // bDescriptorType | |||
| 0x02, // bDescriptorSubtype | |||
| 0x06, // bmCapabilities | |||
| // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33 | |||
| 5, // bFunctionLength | |||
| 0x24, // bDescriptorType | |||
| 0x06, // bDescriptorSubtype | |||
| CDC_STATUS_INTERFACE, // bMasterInterface | |||
| CDC_DATA_INTERFACE, // bSlaveInterface0 | |||
| // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 | |||
| 7, // bLength | |||
| 5, // bDescriptorType | |||
| CDC_ACM_ENDPOINT | 0x80, // bEndpointAddress | |||
| 0x03, // bmAttributes (0x03=intr) | |||
| CDC_ACM_SIZE, 0, // wMaxPacketSize | |||
| 64, // bInterval | |||
| // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 | |||
| 9, // bLength | |||
| 4, // bDescriptorType | |||
| CDC_DATA_INTERFACE, // bInterfaceNumber | |||
| 0, // bAlternateSetting | |||
| 2, // bNumEndpoints | |||
| 0x0A, // bInterfaceClass | |||
| 0x00, // bInterfaceSubClass | |||
| 0x00, // bInterfaceProtocol | |||
| 0, // iInterface | |||
| // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 | |||
| 7, // bLength | |||
| 5, // bDescriptorType | |||
| CDC_RX_ENDPOINT, // bEndpointAddress | |||
| 0x02, // bmAttributes (0x02=bulk) | |||
| CDC_RX_SIZE, 0, // wMaxPacketSize | |||
| 0, // bInterval | |||
| // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 | |||
| 7, // bLength | |||
| 5, // bDescriptorType | |||
| CDC_TX_ENDPOINT | 0x80, // bEndpointAddress | |||
| 0x02, // bmAttributes (0x02=bulk) | |||
| CDC_TX_SIZE, 0, // wMaxPacketSize | |||
| 0, // bInterval | |||
| EMIT_CDC_DESCRIPTORS(CDC), | |||
| #endif // CDC_DATA_INTERFACE | |||
| #ifdef MIDI_INTERFACE | |||
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