mirror of
https://gitee.com/Vancouver2017/luban-lite.git
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194 lines
7.4 KiB
C
194 lines
7.4 KiB
C
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#include "usbd_core.h"
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#include "usbd_audio.h"
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#define USBD_VID 0xffff
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#define USBD_PID 0xffff
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#define USBD_MAX_POWER 100
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#define USBD_LANGID_STRING 1033
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#ifdef CONFIG_USB_HS
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#define EP_INTERVAL 0x04
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#else
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#define EP_INTERVAL 0x01
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#endif
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#define AUDIO_IN_EP 0x01
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#define AUDIO_FREQ 48000
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#define HALF_WORD_BYTES 2 //2 half word (one channel)
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#define SAMPLE_BITS 16 //16 bit per channel
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#define IN_CHANNEL_NUM 2
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#if IN_CHANNEL_NUM == 1
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#define INPUT_CTRL DBVAL(BMCONTROL)
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#define INPUT_CH_ENABLE 0x00000001
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#elif IN_CHANNEL_NUM == 2
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#define INPUT_CTRL DBVAL(BMCONTROL), DBVAL(BMCONTROL)
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#define INPUT_CH_ENABLE 0x00000003
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#elif IN_CHANNEL_NUM == 3
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#define INPUT_CTRL DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL)
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#define INPUT_CH_ENABLE 0x00000007
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#elif IN_CHANNEL_NUM == 4
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#define INPUT_CTRL DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL)
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#define INPUT_CH_ENABLE 0x0000000f
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#elif IN_CHANNEL_NUM == 5
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#define INPUT_CTRL DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL)
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#define INPUT_CH_ENABLE 0x0000001f
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#elif IN_CHANNEL_NUM == 6
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#define INPUT_CTRL DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL)
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#define INPUT_CH_ENABLE 0x0000003F
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#elif IN_CHANNEL_NUM == 7
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#define INPUT_CTRL DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL)
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#define INPUT_CH_ENABLE 0x0000007f
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#elif IN_CHANNEL_NUM == 8
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#define INPUT_CTRL DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL), DBVAL(BMCONTROL)
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#define INPUT_CH_ENABLE 0x000000ff
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#endif
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#define AUDIO_IN_PACKET ((uint32_t)((AUDIO_FREQ * HALF_WORD_BYTES * IN_CHANNEL_NUM) / 1000))
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#define BMCONTROL (AUDIO_V2_FU_CONTROL_MUTE | AUDIO_V2_FU_CONTROL_VOLUME)
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#define USB_AUDIO_CONFIG_DESC_SIZ (9 + \
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AUDIO_V2_AC_DESCRIPTOR_INIT_LEN + \
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AUDIO_V2_SIZEOF_AC_CLOCK_SOURCE_DESC + \
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AUDIO_V2_SIZEOF_AC_INPUT_TERMINAL_DESC + \
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AUDIO_V2_SIZEOF_AC_FEATURE_UNIT_DESC(IN_CHANNEL_NUM) + \
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AUDIO_V2_SIZEOF_AC_OUTPUT_TERMINAL_DESC + \
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AUDIO_V2_AS_DESCRIPTOR_INIT_LEN)
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#define AUDIO_AC_SIZ (AUDIO_V2_SIZEOF_AC_HEADER_DESC + \
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AUDIO_V2_SIZEOF_AC_CLOCK_SOURCE_DESC + \
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AUDIO_V2_SIZEOF_AC_INPUT_TERMINAL_DESC + \
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AUDIO_V2_SIZEOF_AC_FEATURE_UNIT_DESC(IN_CHANNEL_NUM) + \
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AUDIO_V2_SIZEOF_AC_OUTPUT_TERMINAL_DESC)
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const uint8_t audio_descriptor[] = {
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USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0001, 0x01),
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USB_CONFIG_DESCRIPTOR_INIT(USB_AUDIO_CONFIG_DESC_SIZ, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
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AUDIO_V2_AC_DESCRIPTOR_INIT(0x00, 0x02, AUDIO_AC_SIZ, AUDIO_CATEGORY_MICROPHONE, 0x00, 0x00),
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AUDIO_V2_AC_CLOCK_SOURCE_DESCRIPTOR_INIT(0x01, 0x03, 0x03),
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AUDIO_V2_AC_INPUT_TERMINAL_DESCRIPTOR_INIT(0x02, AUDIO_INTERM_MIC, 0x01, IN_CHANNEL_NUM, INPUT_CH_ENABLE, 0x0000),
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AUDIO_V2_AC_FEATURE_UNIT_DESCRIPTOR_INIT(0x03, 0x02, INPUT_CTRL),
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AUDIO_V2_AC_OUTPUT_TERMINAL_DESCRIPTOR_INIT(0x04, AUDIO_TERMINAL_STREAMING, 0x03, 0x01, 0x0000),
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AUDIO_V2_AS_DESCRIPTOR_INIT(0x01, 0x04, IN_CHANNEL_NUM, INPUT_CH_ENABLE, HALF_WORD_BYTES, SAMPLE_BITS, AUDIO_IN_EP, AUDIO_IN_PACKET, EP_INTERVAL),
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///////////////////////////////////////
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/// string0 descriptor
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///////////////////////////////////////
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USB_LANGID_INIT(USBD_LANGID_STRING),
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///////////////////////////////////////
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/// string1 descriptor
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///////////////////////////////////////
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0x14, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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///////////////////////////////////////
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/// string2 descriptor
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///////////////////////////////////////
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0x26, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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' ', 0x00, /* wcChar9 */
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'U', 0x00, /* wcChar10 */
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'A', 0x00, /* wcChar11 */
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'C', 0x00, /* wcChar12 */
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' ', 0x00, /* wcChar13 */
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'D', 0x00, /* wcChar14 */
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'E', 0x00, /* wcChar15 */
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'M', 0x00, /* wcChar16 */
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'O', 0x00, /* wcChar17 */
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///////////////////////////////////////
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/// string3 descriptor
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///////////////////////////////////////
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0x16, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'2', 0x00, /* wcChar0 */
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'0', 0x00, /* wcChar1 */
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'2', 0x00, /* wcChar2 */
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'1', 0x00, /* wcChar3 */
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'0', 0x00, /* wcChar4 */
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'3', 0x00, /* wcChar5 */
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'1', 0x00, /* wcChar6 */
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'0', 0x00, /* wcChar7 */
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'0', 0x00, /* wcChar8 */
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'4', 0x00, /* wcChar9 */
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#ifdef CONFIG_USB_HS
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///////////////////////////////////////
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/// device qualifier descriptor
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///////////////////////////////////////
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0x0a,
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USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
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0x00,
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0x02,
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0x00,
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0x00,
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0x00,
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0x40,
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0x01,
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0x00,
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#endif
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0x00
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};
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volatile bool tx_flag = 0;
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void usbd_audio_open(uint8_t intf)
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{
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tx_flag = 1;
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USB_LOG_RAW("OPEN\r\n");
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}
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void usbd_audio_close(uint8_t intf)
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{
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USB_LOG_RAW("CLOSE\r\n");
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tx_flag = 0;
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}
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static usbd_class_t audio_class;
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static usbd_interface_t audio_control_intf;
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static usbd_interface_t audio_stream_intf;
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void usbd_audio_iso_callback(uint8_t ep)
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{
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}
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static usbd_endpoint_t audio_in_ep = {
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.ep_cb = usbd_audio_iso_callback,
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.ep_addr = AUDIO_IN_EP
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};
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void audio_init()
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{
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usbd_desc_register(audio_descriptor);
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usbd_audio_add_interface(&audio_class, &audio_control_intf);
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usbd_audio_add_interface(&audio_class, &audio_stream_intf);
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usbd_interface_add_endpoint(&audio_stream_intf, &audio_in_ep);
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usbd_audio_add_entity(0x01, AUDIO_CONTROL_CLOCK_SOURCE);
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usbd_audio_add_entity(0x03, AUDIO_CONTROL_FEATURE_UNIT);
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usbd_initialize();
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}
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void audio_test()
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{
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while (1) {
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if (tx_flag) {
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}
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}
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}
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