616 lines
16 KiB
C
616 lines
16 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-09-19 flybreak the first version
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*/
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//#include <rthw.h>
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#include <rtthread.h>
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#include "include/rttusb_device.h"
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#ifdef RT_USB_DEVICE_AUDIO_SPEAKER
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#include "stream_frame.h"
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#include "uaudioreg.h"
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#include "lib/multimedia/msi.h"
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#define AUDIO_SAMPLERATE 8000
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#define AUDIO_CHANNEL 1
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#define RESOLUTION_BITS 16
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#define AUDIO_INTERVAL_TIME 64 //ms
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#define RESOLUTION_BYTE (RESOLUTION_BITS / 8)
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#define AUDIO_PER_MS_SZ ((AUDIO_SAMPLERATE * AUDIO_CHANNEL * RESOLUTION_BYTE) / 1000)
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#define AUDIO_BUFFER_SZ (AUDIO_PER_MS_SZ * AUDIO_INTERVAL_TIME)
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#if defined(RT_USBD_SPEAKER_DEVICE_NAME)
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#define SPEAKER_DEVICE_NAME RT_USBD_SPEAKER_DEVICE_NAME
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#else
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#define SPEAKER_DEVICE_NAME "sound0"
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#endif
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#define EVENT_AUDIO_START (1 << 0)
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#define EVENT_AUDIO_STOP (1 << 1)
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#define SPK_INTF_STR_INDEX 9
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/*
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* uac speaker descriptor define
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*/
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#define UAC_CS_INTERFACE 0x24
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#define UAC_CS_ENDPOINT 0x25
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#define UAC_MAX_PACKET_SIZE AUDIO_BUFFER_SZ
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#define UAC_EP_MAX_PACKET_SIZE AUDIO_PER_MS_SZ
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#define UAC_CHANNEL_NUM AUDIO_CHANNEL
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struct uac_ac_descriptor
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{
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#ifdef RT_USB_DEVICE_COMPOSITE
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struct uiad_descriptor iad_desc;
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#endif
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struct uinterface_descriptor intf_desc;
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struct usb_audio_control_descriptor hdr_desc;
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struct usb_audio_input_terminal it_desc;
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struct usb_audio_output_terminal ot_desc;
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#if UAC_USE_FEATURE_UNIT
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struct usb_audio_feature_unit feature_unit_desc;
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#endif
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};
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struct uac_as_descriptor
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{
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struct uinterface_descriptor intf_desc;
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struct usb_audio_streaming_interface_descriptor hdr_desc;
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struct usb_audio_streaming_type1_descriptor format_type_desc;
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struct uendpoint_descriptor ep_desc;
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struct usb_audio_streaming_endpoint_descriptor as_ep_desc;
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};
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/*
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* uac speaker device type
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*/
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struct uac_audio_speaker
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{
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rt_device_t dev;
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rt_event_t event;
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rt_uint8_t open_count;
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rt_uint8_t *buffer;
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rt_uint32_t buffer_index;
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uep_t ep;
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struct msi *msi;
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struct fbpool tx_pool;
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};
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static struct uac_audio_speaker speaker;
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rt_align(4)
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static struct udevice_descriptor dev_desc =
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{
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USB_DESC_LENGTH_DEVICE, //bLength;
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USB_DESC_TYPE_DEVICE, //type;
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USB_BCD_VERSION, //bcdUSB;
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USB_CLASS_DEVICE, //bDeviceClass;
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0x00, //bDeviceSubClass;
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0x00, //bDeviceProtocol;
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UAC_EP_MAX_PACKET_SIZE, //bMaxPacketSize0;
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_VENDOR_ID, //idVendor;
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_PRODUCT_ID, //idProduct;
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USB_BCD_DEVICE, //bcdDevice;
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USB_STRING_MANU_INDEX, //iManufacturer;
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USB_STRING_PRODUCT_INDEX, //iProduct;
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USB_STRING_SERIAL_INDEX, //iSerialNumber;Unused.
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USB_DYNAMIC, //bNumConfigurations;
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};
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//FS and HS needed
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rt_align(4)
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static struct usb_qualifier_descriptor dev_qualifier =
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{
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sizeof(dev_qualifier), //bLength
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USB_DESC_TYPE_DEVICEQUALIFIER, //bDescriptorType
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0x0200, //bcdUSB
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USB_CLASS_AUDIO, //bDeviceClass
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0x00, //bDeviceSubClass
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0x00, //bDeviceProtocol
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64, //bMaxPacketSize0
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0x01, //bNumConfigurations
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0,
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};
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rt_align(4)
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const static char *_ustring[] =
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{
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"Language",
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"RT-Thread Team.",
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"RT-Thread Audio Speaker",
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"32021919830108",
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"Configuration",
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"Interface",
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};
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rt_align(4)
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static struct uac_ac_descriptor ac_desc =
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{
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#ifdef RT_USB_DEVICE_COMPOSITE
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/* Interface Association Descriptor */
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{
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USB_DESC_LENGTH_IAD,
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USB_DESC_TYPE_IAD,
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USB_DYNAMIC,
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0x02,
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USB_CLASS_AUDIO,
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USB_SUBCLASS_AUDIOSTREAMING,
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0x00,
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0x00,
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},
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#endif
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/* Interface Descriptor */
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{
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USB_DESC_LENGTH_INTERFACE,
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USB_DESC_TYPE_INTERFACE,
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USB_DYNAMIC,
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0x00,
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0x00,
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USB_CLASS_AUDIO,
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USB_SUBCLASS_AUDIOCONTROL,
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0x00,
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#ifdef RT_USB_DEVICE_COMPOSITE
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SPK_INTF_STR_INDEX,
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#else
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0x00,
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#endif
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},
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/* Header Descriptor */
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{
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sizeof(struct usb_audio_control_descriptor),
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UAC_CS_INTERFACE,
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UDESCSUB_AC_HEADER,
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0x0100, /* Version: 1.00 */
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0x0027, /* Total length: 39 */
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0x01, /* Total number of interfaces: 1 */
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{0x01}, /* Interface number: 1 */
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},
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/* Input Terminal Descriptor */
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{
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sizeof(struct usb_audio_input_terminal),
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UAC_CS_INTERFACE,
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UDESCSUB_AC_INPUT,
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0x01, /* Terminal ID: 1 */
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0x0101, /* Terminal Type: USB Streaming (0x0101) */
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0x00, /* Assoc Terminal: 0 */
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0x01, /* Number Channels: 1 */
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0x0000, /* Channel Config: 0x0000 */
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0x00, /* Channel Names: 0 */
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0x00, /* Terminal: 0 */
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},
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/* Output Terminal Descriptor */
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{
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sizeof(struct usb_audio_output_terminal),
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UAC_CS_INTERFACE,
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UDESCSUB_AC_OUTPUT,
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0x02, /* Terminal ID: 2 */
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0x0301, /* Terminal Type */
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0x00, /* Assoc Terminal: 0 */
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0x01, /* Source ID: 1 */
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0x00, /* Terminal: 0 */
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},
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#if UAC_USE_FEATURE_UNIT
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/* Feature unit Descriptor */
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{
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sizeof(struct usb_audio_feature_unit),
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UAC_CS_INTERFACE,
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UDESCSUB_AC_FEATURE,
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0x02,
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0x01，
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0x01,
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0x00,
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0x01,
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},
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#endif
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};
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rt_align(4)
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static struct uinterface_descriptor as_desc0 =
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{
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USB_DESC_LENGTH_INTERFACE,
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USB_DESC_TYPE_INTERFACE,
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USB_DYNAMIC,
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0x00,
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0x00,
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USB_CLASS_AUDIO,
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USB_SUBCLASS_AUDIOSTREAMING,
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0x00,
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0x00,
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};
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rt_align(4)
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static struct uac_as_descriptor as_desc =
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{
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/* Interface Descriptor */
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{
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USB_DESC_LENGTH_INTERFACE,
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USB_DESC_TYPE_INTERFACE,
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USB_DYNAMIC,
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0x01,
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0x01,
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USB_CLASS_AUDIO,
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USB_SUBCLASS_AUDIOSTREAMING,
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0x00,
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0x00,
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},
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/* General AS Descriptor */
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{
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sizeof(struct usb_audio_streaming_interface_descriptor),
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UAC_CS_INTERFACE,
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AS_GENERAL,
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0x01, /* Terminal ID: 1 */
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0x01, /* Interface delay in frames: 1 */
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UA_FMT_PCM,
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},
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/* Format type i Descriptor */
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{
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sizeof(struct usb_audio_streaming_type1_descriptor),
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UAC_CS_INTERFACE,
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FORMAT_TYPE,
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FORMAT_TYPE_I,
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UAC_CHANNEL_NUM,
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2, /* Subframe Size: 2 */
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RESOLUTION_BITS,
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0x01, /* Samples Frequence Type: 1 */
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{0}, /* Samples Frequence */
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},
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/* Endpoint Descriptor */
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{
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USB_DESC_LENGTH_ENDPOINT,
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USB_DESC_TYPE_ENDPOINT,
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USB_DYNAMIC | USB_DIR_OUT,
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USB_EP_ATTR_ISOC,
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UAC_EP_MAX_PACKET_SIZE,
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0x04 , //HS:0x04 FS:0x01
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},
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/* AS Endpoint Descriptor */
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{
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sizeof(struct usb_audio_streaming_endpoint_descriptor),
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UAC_CS_ENDPOINT,
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AS_GENERAL,
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},
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};
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static int32_t uac_speaker_action(struct msi *msi, uint32_t cmd_id, uint32_t param1, uint32_t param2)
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{
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int32_t ret = RET_OK;
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struct uac_audio_speaker *speaker = (struct uac_msi_s *)msi->priv;
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switch (cmd_id)
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{
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case MSI_CMD_POST_DESTROY:
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{
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fbpool_destroy(&speaker->tx_pool);
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if(speaker) {
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msi->priv = NULL;
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}
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}
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break;
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case MSI_CMD_PRE_DESTROY:
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{
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}
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break;
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case MSI_CMD_FREE_FB:
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{
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struct framebuff *fb = (struct framebuff *)param1;
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// os_printf("fb:%X\n",fb);
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if (fb->data)
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{
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os_free(fb->data);
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fb->data = NULL;
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}
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fbpool_put(&speaker->tx_pool, fb);
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// 不需要内核去释放fb
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ret = RET_OK + 1;
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}
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break;
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}
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return ret;
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}
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static int usbd_audio_spk_msi_init(struct uac_audio_speaker *speaker, rt_uint8_t fb_tx_num)
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{
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speaker->msi = msi_new(S_USB_MIC, 0, NULL);
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if (!speaker->msi)
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{
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os_printf("creat speaker->msi stream fail\n");
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return -RT_ERROR;
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}
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fbpool_init(&speaker->tx_pool, fb_tx_num);
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speaker->msi->priv = speaker;
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speaker->msi->action = uac_speaker_action;
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speaker->msi->enable = 1;
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/* MSI add output */
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/* ... */
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return RT_EOK;
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}
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static void usbd_audio_spk_msi_deinit(struct uac_audio_speaker *speaker)
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{
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if (speaker->msi)
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{
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msi_destroy(speaker->msi);
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speaker->msi = NULL;
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}
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}
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static int usbd_audio_spk_msi_output_fb(struct uac_audio_speaker *speaker, rt_uint8_t *buffer, rt_uint32_t size)
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{
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struct framebuff *fb = NULL;
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fb = fbpool_get(&speaker->tx_pool, 0, speaker->msi);
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if (fb)
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{
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fb->data = os_zalloc(size);
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if (!fb->data)
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{
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os_printf("alloc fb data failed\n");
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msi_delete_fb(NULL, fb);
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fb = NULL;
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return -RT_ERROR;
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}
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rt_memcpy(fb->data, buffer, size);
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fb->mtype = SOUND;
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fb->stype = SOUND_USB_SPK;
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fb->len = size;
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msi_output_fb(speaker->msi, fb);
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}
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else
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{
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os_printf("get src data_f failed\n");
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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static rt_err_t _audio_start(ufunction_t func)
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{
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speaker.ep->request.buffer = speaker.buffer + speaker.buffer_index;
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speaker.ep->request.size = UAC_MAX_PACKET_SIZE / 2;
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speaker.ep->request.req_type = UIO_REQUEST_READ_FULL;
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rt_usbd_io_request(func->device, speaker.ep, &speaker.ep->request);
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speaker.buffer_index += UAC_MAX_PACKET_SIZE / 2;
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if (speaker.buffer_index >= UAC_MAX_PACKET_SIZE)
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{
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speaker.buffer_index = 0;
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}
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speaker.open_count ++;
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rt_event_send(speaker.event, EVENT_AUDIO_START);
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return 0;
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}
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static rt_err_t _audio_stop(ufunction_t func)
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{
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speaker.open_count --;
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rt_event_send(speaker.event, EVENT_AUDIO_STOP);
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return 0;
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}
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static rt_err_t _ep_data_handler(ufunction_t func, rt_size_t size)
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{
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RT_ASSERT(func != RT_NULL);
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speaker.ep->request.buffer = speaker.buffer + speaker.buffer_index;
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speaker.ep->request.size = UAC_MAX_PACKET_SIZE / 2;
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speaker.ep->request.req_type = UIO_REQUEST_READ_FULL;
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rt_usbd_io_request(func->device, speaker.ep, &speaker.ep->request);
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speaker.buffer_index += UAC_MAX_PACKET_SIZE / 2;
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if (speaker.buffer_index >= UAC_MAX_PACKET_SIZE)
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{
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speaker.buffer_index = 0;
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}
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usbd_audio_spk_msi_output_fb(&speaker, speaker.buffer + speaker.buffer_index, UAC_MAX_PACKET_SIZE / 2);
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return RT_EOK;
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}
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static rt_err_t _interface_as_handler(ufunction_t func, ureq_t setup)
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{
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RT_ASSERT(func != RT_NULL);
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RT_ASSERT(func->device != RT_NULL);
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RT_ASSERT(setup != RT_NULL);
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LOG_D("_interface_as_handler");
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if ((setup->request_type & USB_REQ_TYPE_MASK) == USB_REQ_TYPE_STANDARD)
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{
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switch (setup->bRequest)
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{
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case USB_REQ_GET_INTERFACE:
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break;
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case USB_REQ_SET_INTERFACE:
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LOG_D("set interface handler");
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if (setup->wValue == 1)
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{
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_audio_start(func);
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}
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else if (setup->wValue == 0)
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{
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_audio_stop(func);
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}
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break;
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default:
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LOG_D("unknown uac request 0x%x", setup->bRequest);
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return -RT_ERROR;
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}
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}
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return RT_EOK;
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}
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static rt_err_t _function_enable(ufunction_t func)
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{
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RT_ASSERT(func != RT_NULL);
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LOG_D("uac function enable");
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return RT_EOK;
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}
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static rt_err_t _function_disable(ufunction_t func)
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{
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RT_ASSERT(func != RT_NULL);
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LOG_D("uac function disable");
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_audio_stop(func);
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return RT_EOK;
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}
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static struct ufunction_ops ops =
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{
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_function_enable,
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_function_disable,
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RT_NULL,
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};
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/**
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* This function will configure uac descriptor.
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*
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* @param comm the communication interface number.
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* @param data the data interface number.
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*
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* @return RT_EOK on successful.
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*/
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static rt_err_t _uac_descriptor_config(struct uac_ac_descriptor *ac,
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rt_uint8_t cintf_nr, struct uac_as_descriptor *as, rt_uint8_t sintf_nr)
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{
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ac->hdr_desc.baInterfaceNr[0] = sintf_nr;
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#ifdef RT_USB_DEVICE_COMPOSITE
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ac->iad_desc.bFirstInterface = cintf_nr;
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#endif
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return RT_EOK;
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}
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static rt_err_t _uac_samplerate_config(struct uac_as_descriptor *as, rt_uint32_t samplerate)
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{
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as->format_type_desc.tSamFreq[0 * 3 + 2] = samplerate >> 16 & 0xff;
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as->format_type_desc.tSamFreq[0 * 3 + 1] = samplerate >> 8 & 0xff;
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as->format_type_desc.tSamFreq[0 * 3 + 0] = samplerate & 0xff;
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return RT_EOK;
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}
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/**
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* This function will create a uac function instance.
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*
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* @param device the usb device object.
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*
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* @return RT_EOK on successful.
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*/
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ufunction_t rt_usbd_function_uac_speaker_create(udevice_t device)
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{
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ufunction_t func;
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uintf_t intf_ac, intf_as;
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ualtsetting_t setting_as0;
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ualtsetting_t setting_ac, setting_as;
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struct uac_as_descriptor *as_desc_t;
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/* parameter check */
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RT_ASSERT(device != RT_NULL);
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#ifdef RT_USB_DEVICE_COMPOSITE
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rt_usbd_device_set_interface_string(device, SPK_INTF_STR_INDEX, _ustring[2]);
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#else
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/* set usb device string description */
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rt_usbd_device_set_string(device, _ustring);
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#endif
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/* create a uac function */
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func = rt_usbd_function_new(device, &dev_desc, &ops);
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//not support HS
|
||
//rt_usbd_device_set_qualifier(device, &dev_qualifier);
|
||
|
||
/* create interface */
|
||
intf_ac = rt_usbd_interface_new(device, RT_NULL);
|
||
intf_as = rt_usbd_interface_new(device, _interface_as_handler);
|
||
|
||
/* create alternate setting */
|
||
setting_ac = rt_usbd_altsetting_new(sizeof(struct uac_ac_descriptor));
|
||
setting_as0 = rt_usbd_altsetting_new(sizeof(struct uinterface_descriptor));
|
||
setting_as = rt_usbd_altsetting_new(sizeof(struct uac_as_descriptor));
|
||
/* config desc in alternate setting */
|
||
rt_usbd_altsetting_config_descriptor(setting_ac, &ac_desc,
|
||
(rt_off_t) & ((struct uac_ac_descriptor *)0)->intf_desc);
|
||
rt_usbd_altsetting_config_descriptor(setting_as0, &as_desc0, 0);
|
||
rt_usbd_altsetting_config_descriptor(setting_as, &as_desc,
|
||
(rt_off_t) & ((struct uac_as_descriptor *)0)->intf_desc);
|
||
/* configure the uac interface descriptor */
|
||
_uac_descriptor_config(setting_ac->desc, intf_ac->intf_num, setting_as->desc, intf_as->intf_num);
|
||
_uac_samplerate_config(setting_as->desc, AUDIO_SAMPLERATE);
|
||
|
||
/* create endpoint */
|
||
as_desc_t = (struct uac_as_descriptor *)setting_as->desc;
|
||
speaker.ep = rt_usbd_endpoint_new(&as_desc_t->ep_desc, _ep_data_handler);
|
||
|
||
/* add the endpoint to the alternate setting */
|
||
rt_usbd_altsetting_add_endpoint(setting_as, speaker.ep);
|
||
|
||
/* add the alternate setting to the interface, then set default setting of the interface */
|
||
rt_usbd_interface_add_altsetting(intf_ac, setting_ac);
|
||
rt_usbd_set_altsetting(intf_ac, 0);
|
||
rt_usbd_interface_add_altsetting(intf_as, setting_as0);
|
||
rt_usbd_interface_add_altsetting(intf_as, setting_as);
|
||
rt_usbd_set_altsetting(intf_as, 0);
|
||
|
||
/* add the interface to the uac function */
|
||
rt_usbd_function_add_interface(func, intf_ac);
|
||
rt_usbd_function_add_interface(func, intf_as);
|
||
|
||
return func;
|
||
}
|
||
|
||
int audio_speaker_init(void)
|
||
{
|
||
rt_thread_t speaker_tid;
|
||
if (speaker.buffer == RT_NULL)
|
||
speaker.buffer = rt_malloc(UAC_MAX_PACKET_SIZE + USB_RX_BUFF_RESERVE_SIZE);
|
||
if (speaker.buffer == RT_NULL)
|
||
{
|
||
os_printf("speaker buffer malloc failed\n");
|
||
}
|
||
speaker.buffer_index = 0;
|
||
speaker.event = rt_event_create("speaker_event", RT_IPC_FLAG_FIFO);
|
||
|
||
usbd_audio_spk_msi_init(&speaker, 8);
|
||
|
||
return RT_EOK;
|
||
}
|
||
|
||
|
||
/*
|
||
* register uac class
|
||
*/
|
||
static struct udclass uac_speaker_class =
|
||
{
|
||
.rt_usbd_function_create = rt_usbd_function_uac_speaker_create
|
||
};
|
||
|
||
|
||
//需要初始化DAC的采样率，与UAC一致
|
||
int rt_usbd_uac_speaker_class_register(rt_uint32_t dev_id)
|
||
{
|
||
rt_usbd_class_register(&uac_speaker_class, dev_id);
|
||
return 0;
|
||
}
|
||
|
||
|
||
#endif
|