251 lines
8.9 KiB
C
251 lines
8.9 KiB
C
/*
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* Copyright (c) 2024, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "usbd_core.h"
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#include "usbd_video.h"
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#include "cherryusb_yuyv.h"
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#define VIDEO_IN_EP 0x81
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#define VIDEO_INT_EP 0x83
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#ifdef CONFIG_USB_HS
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#define MAX_PAYLOAD_SIZE 1024 // for high speed with one transcations every one micro frame
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#define VIDEO_PACKET_SIZE (unsigned int)(((MAX_PAYLOAD_SIZE / 1)) | (0x00 << 11))
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// #define MAX_PAYLOAD_SIZE 2048 // for high speed with two transcations every one micro frame
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// #define VIDEO_PACKET_SIZE (unsigned int)(((MAX_PAYLOAD_SIZE / 2)) | (0x01 << 11))
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// #define MAX_PAYLOAD_SIZE 3072 // for high speed with three transcations every one micro frame
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// #define VIDEO_PACKET_SIZE (unsigned int)(((MAX_PAYLOAD_SIZE / 3)) | (0x02 << 11))
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#else
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#define MAX_PAYLOAD_SIZE 1020
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#define VIDEO_PACKET_SIZE (unsigned int)(((MAX_PAYLOAD_SIZE / 1)) | (0x00 << 11))
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#endif
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#define WIDTH (unsigned int)(64)
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#define HEIGHT (unsigned int)(48)
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#define CAM_FPS (30)
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#define INTERVAL (unsigned long)(10000000 / CAM_FPS)
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#define MIN_BIT_RATE (unsigned long)(WIDTH * HEIGHT * 16 * CAM_FPS) //16 bit
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#define MAX_BIT_RATE (unsigned long)(WIDTH * HEIGHT * 16 * CAM_FPS)
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#define MAX_FRAME_SIZE (unsigned long)(WIDTH * HEIGHT * 2)
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#define VS_HEADER_SIZ (unsigned int)(VIDEO_SIZEOF_VS_INPUT_HEADER_DESC(1,1) + VIDEO_SIZEOF_VS_FORMAT_UNCOMPRESSED_DESC + VIDEO_SIZEOF_VS_FRAME_UNCOMPRESSED_DESC(1))
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#define USB_VIDEO_DESC_SIZ (unsigned long)(9 + \
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VIDEO_VC_NOEP_DESCRIPTOR_LEN + \
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9 + \
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VS_HEADER_SIZ + \
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6 + \
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9 + \
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7)
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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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const uint8_t video_descriptor[] = {
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USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0xef, 0x02, 0x01, USBD_VID, USBD_PID, 0x0001, 0x01),
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USB_CONFIG_DESCRIPTOR_INIT(USB_VIDEO_DESC_SIZ, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
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//VIDEO_VC_DESCRIPTOR_INIT(0x00, VIDEO_INT_EP, 0x0100, VIDEO_VC_TERMINAL_LEN, 48000000, 0x02),
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VIDEO_VC_NOEP_DESCRIPTOR_INIT(0x00, VIDEO_INT_EP, 0x0100, VIDEO_VC_TERMINAL_LEN, 48000000, 0x02),
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VIDEO_VS_DESCRIPTOR_INIT(0x01, 0x00, 0x00),
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VIDEO_VS_INPUT_HEADER_DESCRIPTOR_INIT(0x01, VS_HEADER_SIZ, VIDEO_IN_EP, 0x00),
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VIDEO_VS_FORMAT_UNCOMPRESSED_DESCRIPTOR_INIT(0x01, 0x01, VIDEO_GUID_YUY2),
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VIDEO_VS_FRAME_UNCOMPRESSED_DESCRIPTOR_INIT(0x01, WIDTH, HEIGHT, MIN_BIT_RATE, MAX_BIT_RATE, MAX_FRAME_SIZE, DBVAL(INTERVAL), 0x01, DBVAL(INTERVAL)),
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VIDEO_VS_COLOR_MATCHING_DESCRIPTOR_INIT(),
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VIDEO_VS_DESCRIPTOR_INIT(0x01, 0x01, 0x01),
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/* 1.2.2.2 Standard VideoStream Isochronous Video Data Endpoint Descriptor */
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USB_ENDPOINT_DESCRIPTOR_INIT(VIDEO_IN_EP, 0x05, VIDEO_PACKET_SIZE, 0x01),
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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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'V', 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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'0', 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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0x00,
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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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volatile bool iso_tx_busy = false;
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static void usbd_event_handler(uint8_t busid, uint8_t event)
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{
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switch (event) {
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case USBD_EVENT_RESET:
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break;
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case USBD_EVENT_CONNECTED:
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break;
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case USBD_EVENT_DISCONNECTED:
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break;
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case USBD_EVENT_RESUME:
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break;
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case USBD_EVENT_SUSPEND:
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break;
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case USBD_EVENT_CONFIGURED:
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tx_flag = 0;
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iso_tx_busy = false;
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break;
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case USBD_EVENT_SET_REMOTE_WAKEUP:
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break;
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case USBD_EVENT_CLR_REMOTE_WAKEUP:
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break;
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default:
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break;
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}
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}
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void usbd_video_open(uint8_t busid, 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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iso_tx_busy = false;
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}
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void usbd_video_close(uint8_t busid, 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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iso_tx_busy = false;
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}
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void usbd_video_iso_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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//USB_LOG_RAW("actual in len:%d\r\n", nbytes);
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iso_tx_busy = false;
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}
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static struct usbd_endpoint video_in_ep = {
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.ep_cb = usbd_video_iso_callback,
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.ep_addr = VIDEO_IN_EP
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};
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struct usbd_interface intf0;
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struct usbd_interface intf1;
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void video_init(uint8_t busid, uintptr_t reg_base)
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{
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usbd_desc_register(busid, video_descriptor);
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usbd_add_interface(busid, usbd_video_init_intf(busid, &intf0, INTERVAL, MAX_FRAME_SIZE, MAX_PAYLOAD_SIZE));
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usbd_add_interface(busid, usbd_video_init_intf(busid, &intf1, INTERVAL, MAX_FRAME_SIZE, MAX_PAYLOAD_SIZE));
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usbd_add_endpoint(busid, &video_in_ep);
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usbd_initialize(busid, reg_base, usbd_event_handler);
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}
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t packet_buffer[40 * 1024];
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void video_test(uint8_t busid)
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{
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uint32_t out_len;
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uint32_t packets;
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(void)packets;
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memset(packet_buffer, 0, 40 * 1024);
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while (1) {
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if (tx_flag) {
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packets = usbd_video_payload_fill(busid, (uint8_t *)cherryusb_yuyv, sizeof(cherryusb_yuyv), packet_buffer, &out_len);
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#if 1
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iso_tx_busy = true;
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usbd_ep_start_write(busid, VIDEO_IN_EP, packet_buffer, out_len);
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while (iso_tx_busy) {
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if (tx_flag == 0) {
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break;
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}
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}
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#else
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/* dwc2 must use this method */
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for (uint32_t i = 0; i < packets; i++) {
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if (i == (packets - 1)) {
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iso_tx_busy = true;
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usbd_ep_start_write(busid, VIDEO_IN_EP, &packet_buffer[i * MAX_PAYLOAD_SIZE], out_len - (packets - 1) * MAX_PAYLOAD_SIZE);
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while (iso_tx_busy) {
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if (tx_flag == 0) {
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break;
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}
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}
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} else {
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iso_tx_busy = true;
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usbd_ep_start_write(busid, VIDEO_IN_EP, &packet_buffer[i * MAX_PAYLOAD_SIZE], MAX_PAYLOAD_SIZE);
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while (iso_tx_busy) {
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if (tx_flag == 0) {
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break;
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}
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}
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}
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}
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#endif
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}
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}
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} |