Mirror/AI-on-the-edge-device
1
0
Fork 0
mirror of https://github.com/jomjol/AI-on-the-edge-device.git synced 2025-12-08 12:36:52 +03:00
Code Issues Packages Projects Releases Wiki Activity

v10.2.0

Browse Source
This commit is contained in:
jomjol
2022-01-14 20:18:24 +01:00
parent 2daf6c8b3f
commit e79c86c7b6
86 changed files with 8008 additions and 1803 deletions
Download Patch File Download Diff File Expand all files Collapse all files

483
code/components/esp32-camera-master/driver/cam_hal.c Normal file
View File

@@ -0,0 +1,483 @@
// Copyright 2010-2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdio.h>
#include <string.h>
#include "esp_heap_caps.h"
#include "ll_cam.h"
#include "cam_hal.h"
static const char *TAG = "cam_hal";
static cam_obj_t *cam_obj = NULL;
static const uint32_t JPEG_SOI_MARKER = 0xFFD8FF; // written in little-endian for esp32
static const uint16_t JPEG_EOI_MARKER = 0xD9FF; // written in little-endian for esp32
static int cam_verify_jpeg_soi(const uint8_t *inbuf, uint32_t length)
{
uint32_t sig = *((uint32_t *)inbuf) & 0xFFFFFF;
if(sig != JPEG_SOI_MARKER) {
for (uint32_t i = 0; i < length; i++) {
sig = *((uint32_t *)(&inbuf[i])) & 0xFFFFFF;
if (sig == JPEG_SOI_MARKER) {
ESP_LOGW(TAG, "SOI: %d", i);
return i;
}
}
ESP_LOGW(TAG, "NO-SOI");
return -1;
}
return 0;
}
static int cam_verify_jpeg_eoi(const uint8_t *inbuf, uint32_t length)
{
int offset = -1;
uint8_t *dptr = (uint8_t *)inbuf + length - 2;
while (dptr > inbuf) {
uint16_t sig = *((uint16_t *)dptr);
if (JPEG_EOI_MARKER == sig) {
offset = dptr - inbuf;
//ESP_LOGW(TAG, "EOI: %d", length - (offset + 2));
return offset;
}
dptr--;
}
return -1;
}
static bool cam_get_next_frame(int * frame_pos)
{
if(!cam_obj->frames[*frame_pos].en){
for (int x = 0; x < cam_obj->frame_cnt; x++) {
if (cam_obj->frames[x].en) {
*frame_pos = x;
return true;
}
}
} else {
return true;
}
return false;
}
static bool cam_start_frame(int * frame_pos)
{
if (cam_get_next_frame(frame_pos)) {
if(ll_cam_start(cam_obj, *frame_pos)){
// Vsync the frame manually
ll_cam_do_vsync(cam_obj);
uint64_t us = (uint64_t)esp_timer_get_time();
cam_obj->frames[*frame_pos].fb.timestamp.tv_sec = us / 1000000UL;
cam_obj->frames[*frame_pos].fb.timestamp.tv_usec = us % 1000000UL;
return true;
}
}
return false;
}
void IRAM_ATTR ll_cam_send_event(cam_obj_t *cam, cam_event_t cam_event, BaseType_t * HPTaskAwoken)
{
if (xQueueSendFromISR(cam->event_queue, (void *)&cam_event, HPTaskAwoken) != pdTRUE) {
ll_cam_stop(cam);
cam->state = CAM_STATE_IDLE;
ESP_EARLY_LOGE(TAG, "EV-%s-OVF", cam_event==CAM_IN_SUC_EOF_EVENT ? "EOF" : "VSYNC");
}
}
//Copy fram from DMA dma_buffer to fram dma_buffer
static void cam_task(void *arg)
{
int cnt = 0;
int frame_pos = 0;
cam_obj->state = CAM_STATE_IDLE;
cam_event_t cam_event = 0;
xQueueReset(cam_obj->event_queue);
while (1) {
xQueueReceive(cam_obj->event_queue, (void *)&cam_event, portMAX_DELAY);
DBG_PIN_SET(1);
switch (cam_obj->state) {
case CAM_STATE_IDLE: {
if (cam_event == CAM_VSYNC_EVENT) {
//DBG_PIN_SET(1);
if(cam_start_frame(&frame_pos)){
cam_obj->frames[frame_pos].fb.len = 0;
cam_obj->state = CAM_STATE_READ_BUF;
}
cnt = 0;
}
}
break;
case CAM_STATE_READ_BUF: {
camera_fb_t * frame_buffer_event = &cam_obj->frames[frame_pos].fb;
size_t pixels_per_dma = (cam_obj->dma_half_buffer_size * cam_obj->fb_bytes_per_pixel) / (cam_obj->dma_bytes_per_item * cam_obj->in_bytes_per_pixel);
if (cam_event == CAM_IN_SUC_EOF_EVENT) {
if(!cam_obj->psram_mode){
if (cam_obj->fb_size < (frame_buffer_event->len + pixels_per_dma)) {
ESP_LOGW(TAG, "FB-OVF");
ll_cam_stop(cam_obj);
DBG_PIN_SET(0);
continue;
}
frame_buffer_event->len += ll_cam_memcpy(cam_obj,
&frame_buffer_event->buf[frame_buffer_event->len],
&cam_obj->dma_buffer[(cnt % cam_obj->dma_half_buffer_cnt) * cam_obj->dma_half_buffer_size],
cam_obj->dma_half_buffer_size);
}
//Check for JPEG SOI in the first buffer. stop if not found
if (cam_obj->jpeg_mode && cnt == 0 && cam_verify_jpeg_soi(frame_buffer_event->buf, frame_buffer_event->len) != 0) {
ll_cam_stop(cam_obj);
cam_obj->state = CAM_STATE_IDLE;
}
cnt++;
} else if (cam_event == CAM_VSYNC_EVENT) {
//DBG_PIN_SET(1);
ll_cam_stop(cam_obj);
if (cnt || !cam_obj->jpeg_mode || cam_obj->psram_mode) {
if (cam_obj->jpeg_mode) {
if (!cam_obj->psram_mode) {
if (cam_obj->fb_size < (frame_buffer_event->len + pixels_per_dma)) {
ESP_LOGW(TAG, "FB-OVF");
cnt--;
} else {
frame_buffer_event->len += ll_cam_memcpy(cam_obj,
&frame_buffer_event->buf[frame_buffer_event->len],
&cam_obj->dma_buffer[(cnt % cam_obj->dma_half_buffer_cnt) * cam_obj->dma_half_buffer_size],
cam_obj->dma_half_buffer_size);
}
}
cnt++;
}
cam_obj->frames[frame_pos].en = 0;
if (cam_obj->psram_mode) {
if (cam_obj->jpeg_mode) {
frame_buffer_event->len = cnt * cam_obj->dma_half_buffer_size;
} else {
frame_buffer_event->len = cam_obj->recv_size;
}
} else if (!cam_obj->jpeg_mode) {
if (frame_buffer_event->len != cam_obj->fb_size) {
cam_obj->frames[frame_pos].en = 1;
ESP_LOGE(TAG, "FB-SIZE: %u != %u", frame_buffer_event->len, cam_obj->fb_size);
}
}
//send frame
if(!cam_obj->frames[frame_pos].en && xQueueSend(cam_obj->frame_buffer_queue, (void *)&frame_buffer_event, 0) != pdTRUE) {
//pop frame buffer from the queue
camera_fb_t * fb2 = NULL;
if(xQueueReceive(cam_obj->frame_buffer_queue, &fb2, 0) == pdTRUE) {
//push the new frame to the end of the queue
if (xQueueSend(cam_obj->frame_buffer_queue, (void *)&frame_buffer_event, 0) != pdTRUE) {
cam_obj->frames[frame_pos].en = 1;
ESP_LOGE(TAG, "FBQ-SND");
}
//free the popped buffer
cam_give(fb2);
} else {
//queue is full and we could not pop a frame from it
cam_obj->frames[frame_pos].en = 1;
ESP_LOGE(TAG, "FBQ-RCV");
}
}
}
if(!cam_start_frame(&frame_pos)){
cam_obj->state = CAM_STATE_IDLE;
} else {
cam_obj->frames[frame_pos].fb.len = 0;
}
cnt = 0;
}
}
break;
}
DBG_PIN_SET(0);
}
}
static lldesc_t * allocate_dma_descriptors(uint32_t count, uint16_t size, uint8_t * buffer)
{
lldesc_t *dma = (lldesc_t *)heap_caps_malloc(count * sizeof(lldesc_t), MALLOC_CAP_DMA);
if (dma == NULL) {
return dma;
}
for (int x = 0; x < count; x++) {
dma[x].size = size;
dma[x].length = 0;
dma[x].sosf = 0;
dma[x].eof = 0;
dma[x].owner = 1;
dma[x].buf = (buffer + size * x);
dma[x].empty = (uint32_t)&dma[(x + 1) % count];
}
return dma;
}
static esp_err_t cam_dma_config(const camera_config_t *config)
{
bool ret = ll_cam_dma_sizes(cam_obj);
if (0 == ret) {
return ESP_FAIL;
}
cam_obj->dma_node_cnt = (cam_obj->dma_buffer_size) / cam_obj->dma_node_buffer_size; // Number of DMA nodes
cam_obj->frame_copy_cnt = cam_obj->recv_size / cam_obj->dma_half_buffer_size; // Number of interrupted copies, ping-pong copy
ESP_LOGI(TAG, "buffer_size: %d, half_buffer_size: %d, node_buffer_size: %d, node_cnt: %d, total_cnt: %d",
cam_obj->dma_buffer_size, cam_obj->dma_half_buffer_size, cam_obj->dma_node_buffer_size, cam_obj->dma_node_cnt, cam_obj->frame_copy_cnt);
cam_obj->dma_buffer = NULL;
cam_obj->dma = NULL;
cam_obj->frames = (cam_frame_t *)heap_caps_calloc(1, cam_obj->frame_cnt * sizeof(cam_frame_t), MALLOC_CAP_DEFAULT);
CAM_CHECK(cam_obj->frames != NULL, "frames malloc failed", ESP_FAIL);
uint8_t dma_align = 0;
size_t fb_size = cam_obj->fb_size;
if (cam_obj->psram_mode) {
dma_align = ll_cam_get_dma_align(cam_obj);
if (cam_obj->fb_size < cam_obj->recv_size) {
fb_size = cam_obj->recv_size;
}
}
/* Allocate memeory for frame buffer */
size_t alloc_size = fb_size * sizeof(uint8_t) + dma_align;
uint32_t _caps = MALLOC_CAP_8BIT;
if (CAMERA_FB_IN_DRAM == config->fb_location) {
_caps |= MALLOC_CAP_INTERNAL;
} else {
_caps |= MALLOC_CAP_SPIRAM;
}
for (int x = 0; x < cam_obj->frame_cnt; x++) {
cam_obj->frames[x].dma = NULL;
cam_obj->frames[x].fb_offset = 0;
cam_obj->frames[x].en = 0;
ESP_LOGI(TAG, "Allocating %d Byte frame buffer in %s", alloc_size, _caps & MALLOC_CAP_SPIRAM ? "PSRAM" : "OnBoard RAM");
cam_obj->frames[x].fb.buf = (uint8_t *)heap_caps_malloc(alloc_size, _caps);
CAM_CHECK(cam_obj->frames[x].fb.buf != NULL, "frame buffer malloc failed", ESP_FAIL);
if (cam_obj->psram_mode) {
//align PSRAM buffer. TODO: save the offset so proper address can be freed later
cam_obj->frames[x].fb_offset = dma_align - ((uint32_t)cam_obj->frames[x].fb.buf & (dma_align - 1));
cam_obj->frames[x].fb.buf += cam_obj->frames[x].fb_offset;
ESP_LOGI(TAG, "Frame[%d]: Offset: %u, Addr: 0x%08X", x, cam_obj->frames[x].fb_offset, (uint32_t)cam_obj->frames[x].fb.buf);
cam_obj->frames[x].dma = allocate_dma_descriptors(cam_obj->dma_node_cnt, cam_obj->dma_node_buffer_size, cam_obj->frames[x].fb.buf);
CAM_CHECK(cam_obj->frames[x].dma != NULL, "frame dma malloc failed", ESP_FAIL);
}
cam_obj->frames[x].en = 1;
}
if (!cam_obj->psram_mode) {
cam_obj->dma_buffer = (uint8_t *)heap_caps_malloc(cam_obj->dma_buffer_size * sizeof(uint8_t), MALLOC_CAP_DMA);
if(NULL == cam_obj->dma_buffer) {
ESP_LOGE(TAG,"%s(%d): DMA buffer %d Byte malloc failed, the current largest free block:%d Byte", __FUNCTION__, __LINE__,
cam_obj->dma_buffer_size, heap_caps_get_largest_free_block(MALLOC_CAP_DMA));
return ESP_FAIL;
}
cam_obj->dma = allocate_dma_descriptors(cam_obj->dma_node_cnt, cam_obj->dma_node_buffer_size, cam_obj->dma_buffer);
CAM_CHECK(cam_obj->dma != NULL, "dma malloc failed", ESP_FAIL);
}
return ESP_OK;
}
esp_err_t cam_init(const camera_config_t *config)
{
CAM_CHECK(NULL != config, "config pointer is invalid", ESP_ERR_INVALID_ARG);
esp_err_t ret = ESP_OK;
cam_obj = (cam_obj_t *)heap_caps_calloc(1, sizeof(cam_obj_t), MALLOC_CAP_DMA);
CAM_CHECK(NULL != cam_obj, "lcd_cam object malloc error", ESP_ERR_NO_MEM);
cam_obj->swap_data = 0;
cam_obj->vsync_pin = config->pin_vsync;
cam_obj->vsync_invert = true;
ll_cam_set_pin(cam_obj, config);
ret = ll_cam_config(cam_obj, config);
CAM_CHECK_GOTO(ret == ESP_OK, "ll_cam initialize failed", err);
#if CAMERA_DBG_PIN_ENABLE
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[DBG_PIN_NUM], PIN_FUNC_GPIO);
gpio_set_direction(DBG_PIN_NUM, GPIO_MODE_OUTPUT);
gpio_set_pull_mode(DBG_PIN_NUM, GPIO_FLOATING);
#endif
ESP_LOGI(TAG, "cam init ok");
return ESP_OK;
err:
free(cam_obj);
cam_obj = NULL;
return ESP_FAIL;
}
esp_err_t cam_config(const camera_config_t *config, framesize_t frame_size, uint16_t sensor_pid)
{
CAM_CHECK(NULL != config, "config pointer is invalid", ESP_ERR_INVALID_ARG);
esp_err_t ret = ESP_OK;
ret = ll_cam_set_sample_mode(cam_obj, (pixformat_t)config->pixel_format, config->xclk_freq_hz, sensor_pid);
cam_obj->jpeg_mode = config->pixel_format == PIXFORMAT_JPEG;
#if CONFIG_IDF_TARGET_ESP32
cam_obj->psram_mode = false;
#else
cam_obj->psram_mode = (config->xclk_freq_hz == 16000000);
#endif
cam_obj->frame_cnt = config->fb_count;
cam_obj->width = resolution[frame_size].width;
cam_obj->height = resolution[frame_size].height;
if(cam_obj->jpeg_mode){
cam_obj->recv_size = cam_obj->width * cam_obj->height / 5;
cam_obj->fb_size = cam_obj->recv_size;
} else {
cam_obj->recv_size = cam_obj->width * cam_obj->height * cam_obj->in_bytes_per_pixel;
cam_obj->fb_size = cam_obj->width * cam_obj->height * cam_obj->fb_bytes_per_pixel;
}
ret = cam_dma_config(config);
CAM_CHECK_GOTO(ret == ESP_OK, "cam_dma_config failed", err);
cam_obj->event_queue = xQueueCreate(cam_obj->dma_half_buffer_cnt - 1, sizeof(cam_event_t));
CAM_CHECK_GOTO(cam_obj->event_queue != NULL, "event_queue create failed", err);
size_t frame_buffer_queue_len = cam_obj->frame_cnt;
if (config->grab_mode == CAMERA_GRAB_LATEST && cam_obj->frame_cnt > 1) {
frame_buffer_queue_len = cam_obj->frame_cnt - 1;
}
cam_obj->frame_buffer_queue = xQueueCreate(frame_buffer_queue_len, sizeof(camera_fb_t*));
CAM_CHECK_GOTO(cam_obj->frame_buffer_queue != NULL, "frame_buffer_queue create failed", err);
ret = ll_cam_init_isr(cam_obj);
CAM_CHECK_GOTO(ret == ESP_OK, "cam intr alloc failed", err);
#if CONFIG_CAMERA_CORE0
xTaskCreatePinnedToCore(cam_task, "cam_task", 2048, NULL, configMAX_PRIORITIES - 2, &cam_obj->task_handle, 0);
#elif CONFIG_CAMERA_CORE1
xTaskCreatePinnedToCore(cam_task, "cam_task", 2048, NULL, configMAX_PRIORITIES - 2, &cam_obj->task_handle, 1);
#else
xTaskCreate(cam_task, "cam_task", 2048, NULL, configMAX_PRIORITIES - 2, &cam_obj->task_handle);
#endif
ESP_LOGI(TAG, "cam config ok");
return ESP_OK;
err:
cam_deinit();
return ESP_FAIL;
}
esp_err_t cam_deinit(void)
{
if (!cam_obj) {
return ESP_FAIL;
}
cam_stop();
if (cam_obj->task_handle) {
vTaskDelete(cam_obj->task_handle);
}
if (cam_obj->event_queue) {
vQueueDelete(cam_obj->event_queue);
}
if (cam_obj->frame_buffer_queue) {
vQueueDelete(cam_obj->frame_buffer_queue);
}
if (cam_obj->dma) {
free(cam_obj->dma);
}
if (cam_obj->dma_buffer) {
free(cam_obj->dma_buffer);
}
if (cam_obj->frames) {
for (int x = 0; x < cam_obj->frame_cnt; x++) {
free(cam_obj->frames[x].fb.buf - cam_obj->frames[x].fb_offset);
if (cam_obj->frames[x].dma) {
free(cam_obj->frames[x].dma);
}
}
free(cam_obj->frames);
}
ll_cam_deinit(cam_obj);
free(cam_obj);
cam_obj = NULL;
return ESP_OK;
}
void cam_stop(void)
{
ll_cam_vsync_intr_enable(cam_obj, false);
ll_cam_stop(cam_obj);
}
void cam_start(void)
{
ll_cam_vsync_intr_enable(cam_obj, true);
}
camera_fb_t *cam_take(TickType_t timeout)
{
camera_fb_t *dma_buffer = NULL;
TickType_t start = xTaskGetTickCount();
xQueueReceive(cam_obj->frame_buffer_queue, (void *)&dma_buffer, timeout);
if (dma_buffer) {
if(cam_obj->jpeg_mode){
// find the end marker for JPEG. Data after that can be discarded
int offset_e = cam_verify_jpeg_eoi(dma_buffer->buf, dma_buffer->len);
if (offset_e >= 0) {
// adjust buffer length
dma_buffer->len = offset_e + sizeof(JPEG_EOI_MARKER);
return dma_buffer;
} else {
ESP_LOGW(TAG, "NO-EOI");
cam_give(dma_buffer);
return cam_take(timeout - (xTaskGetTickCount() - start));//recurse!!!!
}
} else if(cam_obj->psram_mode && cam_obj->in_bytes_per_pixel != cam_obj->fb_bytes_per_pixel){
//currently this is used only for YUV to GRAYSCALE
dma_buffer->len = ll_cam_memcpy(cam_obj, dma_buffer->buf, dma_buffer->buf, dma_buffer->len);
}
return dma_buffer;
} else {
ESP_LOGW(TAG, "Failed to get the frame on time!");
}
return NULL;
}
void cam_give(camera_fb_t *dma_buffer)
{
for (int x = 0; x < cam_obj->frame_cnt; x++) {
if (&cam_obj->frames[x].fb == dma_buffer) {
cam_obj->frames[x].en = 1;
break;
}
}
}

1592
code/components/esp32-camera-master/driver/camera.c
View File

File diff suppressed because it is too large Load Diff

416
code/components/esp32-camera-master/driver/esp_camera.c Normal file
View File

@@ -0,0 +1,416 @@
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "time.h"
#include "sys/time.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "nvs.h"
#include "sensor.h"
#include "sccb.h"
#include "cam_hal.h"
#include "esp_camera.h"
#include "xclk.h"
#if CONFIG_OV2640_SUPPORT
#include "ov2640.h"
#endif
#if CONFIG_OV7725_SUPPORT
#include "ov7725.h"
#endif
#if CONFIG_OV3660_SUPPORT
#include "ov3660.h"
#endif
#if CONFIG_OV5640_SUPPORT
#include "ov5640.h"
#endif
#if CONFIG_NT99141_SUPPORT
#include "nt99141.h"
#endif
#if CONFIG_OV7670_SUPPORT
#include "ov7670.h"
#endif
#if CONFIG_GC2145_SUPPORT
#include "gc2145.h"
#endif
#if CONFIG_GC032A_SUPPORT
#include "gc032a.h"
#endif
#if CONFIG_GC0308_SUPPORT
#include "gc0308.h"
#endif
#if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
#include "esp32-hal-log.h"
#define TAG ""
#else
#include "esp_log.h"
static const char *TAG = "camera";
#endif
typedef struct {
sensor_t sensor;
camera_fb_t fb;
} camera_state_t;
static const char *CAMERA_SENSOR_NVS_KEY = "sensor";
static const char *CAMERA_PIXFORMAT_NVS_KEY = "pixformat";
static camera_state_t *s_state = NULL;
#if CONFIG_IDF_TARGET_ESP32S3 // LCD_CAM module of ESP32-S3 will generate xclk
#define CAMERA_ENABLE_OUT_CLOCK(v)
#define CAMERA_DISABLE_OUT_CLOCK()
#else
#define CAMERA_ENABLE_OUT_CLOCK(v) camera_enable_out_clock((v))
#define CAMERA_DISABLE_OUT_CLOCK() camera_disable_out_clock()
#endif
typedef struct {
int (*detect)(int slv_addr, sensor_id_t *id);
int (*init)(sensor_t *sensor);
} sensor_func_t;
static const sensor_func_t g_sensors[] = {
#if CONFIG_OV7725_SUPPORT
{ov7725_detect, ov7725_init},
#endif
#if CONFIG_OV7670_SUPPORT
{ov7670_detect, ov7670_init},
#endif
#if CONFIG_OV2640_SUPPORT
{ov2640_detect, ov2640_init},
#endif
#if CONFIG_OV3660_SUPPORT
{ov3660_detect, ov3660_init},
#endif
#if CONFIG_OV5640_SUPPORT
{ov5640_detect, ov5640_init},
#endif
#if CONFIG_NT99141_SUPPORT
{nt99141_detect, nt99141_init},
#endif
#if CONFIG_GC2145_SUPPORT
{gc2145_detect, gc2145_init},
#endif
#if CONFIG_GC032A_SUPPORT
{gc032a_detect, gc032a_init},
#endif
#if CONFIG_GC0308_SUPPORT
{gc0308_detect, gc0308_init},
#endif
};
static esp_err_t camera_probe(const camera_config_t *config, camera_model_t *out_camera_model)
{
*out_camera_model = CAMERA_NONE;
if (s_state != NULL) {
return ESP_ERR_INVALID_STATE;
}
s_state = (camera_state_t *) calloc(sizeof(camera_state_t), 1);
if (!s_state) {
return ESP_ERR_NO_MEM;
}
if (config->pin_xclk >= 0) {
ESP_LOGD(TAG, "Enabling XCLK output");
CAMERA_ENABLE_OUT_CLOCK(config);
}
if (config->pin_sscb_sda != -1) {
ESP_LOGD(TAG, "Initializing SSCB");
SCCB_Init(config->pin_sscb_sda, config->pin_sscb_scl);
}
if (config->pin_pwdn >= 0) {
ESP_LOGD(TAG, "Resetting camera by power down line");
gpio_config_t conf = { 0 };
conf.pin_bit_mask = 1LL << config->pin_pwdn;
conf.mode = GPIO_MODE_OUTPUT;
gpio_config(&conf);
// carefull, logic is inverted compared to reset pin
gpio_set_level(config->pin_pwdn, 1);
vTaskDelay(10 / portTICK_PERIOD_MS);
gpio_set_level(config->pin_pwdn, 0);
vTaskDelay(10 / portTICK_PERIOD_MS);
}
if (config->pin_reset >= 0) {
ESP_LOGD(TAG, "Resetting camera");
gpio_config_t conf = { 0 };
conf.pin_bit_mask = 1LL << config->pin_reset;
conf.mode = GPIO_MODE_OUTPUT;
gpio_config(&conf);
gpio_set_level(config->pin_reset, 0);
vTaskDelay(10 / portTICK_PERIOD_MS);
gpio_set_level(config->pin_reset, 1);
vTaskDelay(10 / portTICK_PERIOD_MS);
}
ESP_LOGD(TAG, "Searching for camera address");
vTaskDelay(10 / portTICK_PERIOD_MS);
uint8_t slv_addr = SCCB_Probe();
if (slv_addr == 0) {
CAMERA_DISABLE_OUT_CLOCK();
return ESP_ERR_NOT_FOUND;
}
ESP_LOGI(TAG, "Detected camera at address=0x%02x", slv_addr);
s_state->sensor.slv_addr = slv_addr;
s_state->sensor.xclk_freq_hz = config->xclk_freq_hz;
/**
* Read sensor ID and then initialize sensor
* Attention: Some sensors have the same SCCB address. Therefore, several attempts may be made in the detection process
*/
sensor_id_t *id = &s_state->sensor.id;
for (size_t i = 0; i < sizeof(g_sensors) / sizeof(sensor_func_t); i++) {
if (g_sensors[i].detect(slv_addr, id)) {
camera_sensor_info_t *info = esp_camera_sensor_get_info(id);
if (NULL != info) {
*out_camera_model = info->model;
ESP_LOGI(TAG, "Detected %s camera", info->name);
g_sensors[i].init(&s_state->sensor);
break;
}
}
}
if (CAMERA_NONE == *out_camera_model) { //If no supported sensors are detected
CAMERA_DISABLE_OUT_CLOCK();
ESP_LOGE(TAG, "Detected camera not supported.");
return ESP_ERR_NOT_SUPPORTED;
}
ESP_LOGI(TAG, "Camera PID=0x%02x VER=0x%02x MIDL=0x%02x MIDH=0x%02x",
id->PID, id->VER, id->MIDH, id->MIDL);
ESP_LOGD(TAG, "Doing SW reset of sensor");
vTaskDelay(10 / portTICK_PERIOD_MS);
s_state->sensor.reset(&s_state->sensor);
return ESP_OK;
}
esp_err_t esp_camera_init(const camera_config_t *config)
{
esp_err_t err;
err = cam_init(config);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Camera init failed with error 0x%x", err);
return err;
}
camera_model_t camera_model = CAMERA_NONE;
err = camera_probe(config, &camera_model);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Camera probe failed with error 0x%x(%s)", err, esp_err_to_name(err));
goto fail;
}
framesize_t frame_size = (framesize_t) config->frame_size;
pixformat_t pix_format = (pixformat_t) config->pixel_format;
if (PIXFORMAT_JPEG == pix_format && (!camera_sensor[camera_model].support_jpeg)) {
ESP_LOGE(TAG, "JPEG format is not supported on this sensor");
err = ESP_ERR_NOT_SUPPORTED;
goto fail;
}
if (frame_size > camera_sensor[camera_model].max_size) {
ESP_LOGW(TAG, "The frame size exceeds the maximum for this sensor, it will be forced to the maximum possible value");
frame_size = camera_sensor[camera_model].max_size;
}
err = cam_config(config, frame_size, s_state->sensor.id.PID);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Camera config failed with error 0x%x", err);
goto fail;
}
s_state->sensor.status.framesize = frame_size;
s_state->sensor.pixformat = pix_format;
ESP_LOGD(TAG, "Setting frame size to %dx%d", resolution[frame_size].width, resolution[frame_size].height);
if (s_state->sensor.set_framesize(&s_state->sensor, frame_size) != 0) {
ESP_LOGE(TAG, "Failed to set frame size");
err = ESP_ERR_CAMERA_FAILED_TO_SET_FRAME_SIZE;
goto fail;
}
s_state->sensor.set_pixformat(&s_state->sensor, pix_format);
if (s_state->sensor.id.PID == OV2640_PID) {
s_state->sensor.set_gainceiling(&s_state->sensor, GAINCEILING_2X);
s_state->sensor.set_bpc(&s_state->sensor, false);
s_state->sensor.set_wpc(&s_state->sensor, true);
s_state->sensor.set_lenc(&s_state->sensor, true);
}
if (pix_format == PIXFORMAT_JPEG) {
s_state->sensor.set_quality(&s_state->sensor, config->jpeg_quality);
}
s_state->sensor.init_status(&s_state->sensor);
cam_start();
return ESP_OK;
fail:
esp_camera_deinit();
return err;
}
esp_err_t esp_camera_deinit()
{
esp_err_t ret = cam_deinit();
CAMERA_DISABLE_OUT_CLOCK();
if (s_state) {
SCCB_Deinit();
free(s_state);
s_state = NULL;
}
return ret;
}
#define FB_GET_TIMEOUT (4000 / portTICK_PERIOD_MS)
camera_fb_t *esp_camera_fb_get()
{
if (s_state == NULL) {
return NULL;
}
camera_fb_t *fb = cam_take(FB_GET_TIMEOUT);
//set the frame properties
if (fb) {
fb->width = resolution[s_state->sensor.status.framesize].width;
fb->height = resolution[s_state->sensor.status.framesize].height;
fb->format = s_state->sensor.pixformat;
}
return fb;
}
void esp_camera_fb_return(camera_fb_t *fb)
{
if (s_state == NULL) {
return;
}
cam_give(fb);
}
sensor_t *esp_camera_sensor_get()
{
if (s_state == NULL) {
return NULL;
}
return &s_state->sensor;
}
esp_err_t esp_camera_save_to_nvs(const char *key)
{
#if ESP_IDF_VERSION_MAJOR > 3
nvs_handle_t handle;
#else
nvs_handle handle;
#endif
esp_err_t ret = nvs_open(key, NVS_READWRITE, &handle);
if (ret == ESP_OK) {
sensor_t *s = esp_camera_sensor_get();
if (s != NULL) {
ret = nvs_set_blob(handle, CAMERA_SENSOR_NVS_KEY, &s->status, sizeof(camera_status_t));
if (ret == ESP_OK) {
uint8_t pf = s->pixformat;
ret = nvs_set_u8(handle, CAMERA_PIXFORMAT_NVS_KEY, pf);
}
return ret;
} else {
return ESP_ERR_CAMERA_NOT_DETECTED;
}
nvs_close(handle);
return ret;
} else {
return ret;
}
}
esp_err_t esp_camera_load_from_nvs(const char *key)
{
#if ESP_IDF_VERSION_MAJOR > 3
nvs_handle_t handle;
#else
nvs_handle handle;
#endif
uint8_t pf;
esp_err_t ret = nvs_open(key, NVS_READWRITE, &handle);
if (ret == ESP_OK) {
sensor_t *s = esp_camera_sensor_get();
camera_status_t st;
if (s != NULL) {
size_t size = sizeof(camera_status_t);
ret = nvs_get_blob(handle, CAMERA_SENSOR_NVS_KEY, &st, &size);
if (ret == ESP_OK) {
s->set_ae_level(s, st.ae_level);
s->set_aec2(s, st.aec2);
s->set_aec_value(s, st.aec_value);
s->set_agc_gain(s, st.agc_gain);
s->set_awb_gain(s, st.awb_gain);
s->set_bpc(s, st.bpc);
s->set_brightness(s, st.brightness);
s->set_colorbar(s, st.colorbar);
s->set_contrast(s, st.contrast);
s->set_dcw(s, st.dcw);
s->set_denoise(s, st.denoise);
s->set_exposure_ctrl(s, st.aec);
s->set_framesize(s, st.framesize);
s->set_gain_ctrl(s, st.agc);
s->set_gainceiling(s, st.gainceiling);
s->set_hmirror(s, st.hmirror);
s->set_lenc(s, st.lenc);
s->set_quality(s, st.quality);
s->set_raw_gma(s, st.raw_gma);
s->set_saturation(s, st.saturation);
s->set_sharpness(s, st.sharpness);
s->set_special_effect(s, st.special_effect);
s->set_vflip(s, st.vflip);
s->set_wb_mode(s, st.wb_mode);
s->set_whitebal(s, st.awb);
s->set_wpc(s, st.wpc);
}
ret = nvs_get_u8(handle, CAMERA_PIXFORMAT_NVS_KEY, &pf);
if (ret == ESP_OK) {
s->set_pixformat(s, pf);
}
} else {
return ESP_ERR_CAMERA_NOT_DETECTED;
}
nvs_close(handle);
return ret;
} else {
ESP_LOGW(TAG, "Error (%d) opening nvs key \"%s\"", ret, key);
return ret;
}
}

23
code/components/esp32-camera-master/driver/include/esp_camera.h
View File

@@ -38,7 +38,8 @@
.pixel_format = PIXFORMAT_JPEG,
.frame_size = FRAMESIZE_SVGA,
.jpeg_quality = 10,
.fb_count = 2
.fb_count = 2,
.grab_mode = CAMERA_GRAB_WHEN_EMPTY
};
esp_err_t camera_example_init(){
@@ -74,6 +75,22 @@
extern "C" {
#endif
/**
* @brief Configuration structure for camera initialization
*/
typedef enum {
CAMERA_GRAB_WHEN_EMPTY, /*!< Fills buffers when they are empty. Less resources but first 'fb_count' frames might be old */
CAMERA_GRAB_LATEST /*!< Except when 1 frame buffer is used, queue will always contain the last 'fb_count' frames */
} camera_grab_mode_t;
/**
* @brief Camera frame buffer location
*/
typedef enum {
CAMERA_FB_IN_PSRAM, /*!< Frame buffer is placed in external PSRAM */
CAMERA_FB_IN_DRAM /*!< Frame buffer is placed in internal DRAM */
} camera_fb_location_t;
/**
* @brief Configuration structure for camera initialization
*/
@@ -95,7 +112,7 @@ typedef struct {
int pin_href; /*!< GPIO pin for camera HREF line */
int pin_pclk; /*!< GPIO pin for camera PCLK line */
int xclk_freq_hz; /*!< Frequency of XCLK signal, in Hz. Either 20KHz or 10KHz for OV2640 double FPS (Experimental) */
int xclk_freq_hz; /*!< Frequency of XCLK signal, in Hz. EXPERIMENTAL: Set to 16MHz on ESP32-S2 or ESP32-S3 to enable EDMA mode */
ledc_timer_t ledc_timer; /*!< LEDC timer to be used for generating XCLK */
ledc_channel_t ledc_channel; /*!< LEDC channel to be used for generating XCLK */
@@ -105,6 +122,8 @@ typedef struct {
int jpeg_quality; /*!< Quality of JPEG output. 0-63 lower means higher quality */
size_t fb_count; /*!< Number of frame buffers to be allocated. If more than one, then each frame will be acquired (double speed) */
camera_fb_location_t fb_location; /*!< The location where the frame buffer will be allocated */
camera_grab_mode_t grab_mode; /*!< When buffers should be filled */
} camera_config_t;
/**

68
code/components/esp32-camera-master/driver/include/sensor.h
View File

@@ -11,13 +11,48 @@
#include <stdint.h>
#include <stdbool.h>
#define NT99141_PID (0x14)
#define OV9650_PID (0x96)
#define OV7725_PID (0x77)
#define OV2640_PID (0x26)
#define OV3660_PID (0x36)
#define OV5640_PID (0x56)
#define OV7670_PID (0x76)
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
OV9650_PID = 0x96,
OV7725_PID = 0x77,
OV2640_PID = 0x26,
OV3660_PID = 0x3660,
OV5640_PID = 0x5640,
OV7670_PID = 0x76,
NT99141_PID = 0x1410,
GC2145_PID = 0x2145,
GC032A_PID = 0x232a,
GC0308_PID = 0x9b,
} camera_pid_t;
typedef enum {
CAMERA_OV7725,
CAMERA_OV2640,
CAMERA_OV3660,
CAMERA_OV5640,
CAMERA_OV7670,
CAMERA_NT99141,
CAMERA_GC2145,
CAMERA_GC032A,
CAMERA_GC0308,
CAMERA_MODEL_MAX,
CAMERA_NONE,
} camera_model_t;
typedef enum {
OV2640_SCCB_ADDR = 0x30,// 0x60 >> 1
OV5640_SCCB_ADDR = 0x3C,// 0x78 >> 1
OV3660_SCCB_ADDR = 0x3C,// 0x78 >> 1
OV7725_SCCB_ADDR = 0x21,// 0x42 >> 1
OV7670_SCCB_ADDR = 0x21,// 0x42 >> 1
NT99141_SCCB_ADDR = 0x2A,// 0x54 >> 1
GC2145_SCCB_ADDR = 0x3C,// 0x78 >> 1
GC032A_SCCB_ADDR = 0x21,// 0x42 >> 1
GC0308_SCCB_ADDR = 0x21,// 0x42 >> 1
} camera_sccb_addr_t;
typedef enum {
PIXFORMAT_RGB565, // 2BPP/RGB565
@@ -58,6 +93,15 @@ typedef enum {
FRAMESIZE_INVALID
} framesize_t;
typedef struct {
const camera_model_t model;
const char *name;
const camera_sccb_addr_t sccb_addr;
const camera_pid_t pid;
const framesize_t max_size;
const bool support_jpeg;
} camera_sensor_info_t;
typedef enum {
ASPECT_RATIO_4X3,
ASPECT_RATIO_3X2,
@@ -101,11 +145,13 @@ typedef struct {
// Resolution table (in sensor.c)
extern const resolution_info_t resolution[];
// camera sensor table (in sensor.c)
extern const camera_sensor_info_t camera_sensor[];
typedef struct {
uint8_t MIDH;
uint8_t MIDL;
uint8_t PID;
uint16_t PID;
uint8_t VER;
} sensor_id_t;
@@ -190,4 +236,10 @@ typedef struct _sensor {
int (*set_xclk) (sensor_t *sensor, int timer, int xclk);
} sensor_t;
camera_sensor_info_t *esp_camera_sensor_get_info(sensor_id_t *id);
#ifdef __cplusplus
}
#endif
#endif /* __SENSOR_H__ */

60
code/components/esp32-camera-master/driver/private_include/cam_hal.h Normal file
View File

@@ -0,0 +1,60 @@
// Copyright 2010-2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include "esp_camera.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Uninitialize the lcd_cam module
*
* @param handle Provide handle pointer to release resources
*
* @return
* - ESP_OK Success
* - ESP_FAIL Uninitialize fail
*/
esp_err_t cam_deinit(void);
/**
* @brief Initialize the lcd_cam module
*
* @param config Configurations - see lcd_cam_config_t struct
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Parameter error
* - ESP_ERR_NO_MEM No memory to initialize lcd_cam
* - ESP_FAIL Initialize fail
*/
esp_err_t cam_init(const camera_config_t *config);
esp_err_t cam_config(const camera_config_t *config, framesize_t frame_size, uint16_t sensor_pid);
void cam_stop(void);
void cam_start(void);
camera_fb_t *cam_take(TickType_t timeout);
void cam_give(camera_fb_t *dma_buffer);
#ifdef __cplusplus
}
#endif

49
code/components/esp32-camera-master/driver/private_include/camera_common.h
View File

@@ -1,49 +0,0 @@
#pragma once
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include "esp_err.h"
#include "esp_intr_alloc.h"
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
#include "freertos/task.h"
#include "esp_camera.h"
#include "sensor.h"
#include "esp_system.h"
#if ESP_IDF_VERSION_MAJOR >= 4 // IDF 4+
#if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
#include "esp32/rom/lldesc.h"
#else
#error Target CONFIG_IDF_TARGET is not supported
#endif
#else // ESP32 Before IDF 4.0
#include "rom/lldesc.h"
#endif
typedef union {
struct {
uint8_t sample2;
uint8_t unused2;
uint8_t sample1;
uint8_t unused1;
};
uint32_t val;
} dma_elem_t;
typedef enum {
/* camera sends byte sequence: s1, s2, s3, s4, ...
* fifo receives: 00 s1 00 s2, 00 s2 00 s3, 00 s3 00 s4, ...
*/
SM_0A0B_0B0C = 0,
/* camera sends byte sequence: s1, s2, s3, s4, ...
* fifo receives: 00 s1 00 s2, 00 s3 00 s4, ...
*/
SM_0A0B_0C0D = 1,
/* camera sends byte sequence: s1, s2, s3, s4, ...
* fifo receives: 00 s1 00 00, 00 s2 00 00, 00 s3 00 00, ...
*/
SM_0A00_0B00 = 3,
} i2s_sampling_mode_t;

1
code/components/esp32-camera-master/driver/private_include/sccb.h
View File

@@ -10,6 +10,7 @@
#define __SCCB_H__
#include <stdint.h>
int SCCB_Init(int pin_sda, int pin_scl);
int SCCB_Deinit(void);
uint8_t SCCB_Probe();
uint8_t SCCB_Read(uint8_t slv_addr, uint8_t reg);
uint8_t SCCB_Write(uint8_t slv_addr, uint8_t reg, uint8_t data);

4
code/components/esp32-camera-master/driver/private_include/xclk.h
View File

@@ -1,6 +1,8 @@
#pragma once
#include "camera_common.h"
#include "esp_system.h"
esp_err_t xclk_timer_conf(int ledc_timer, int xclk_freq_hz);
esp_err_t camera_enable_out_clock();

35
code/components/esp32-camera-master/driver/sccb.c
View File

@@ -11,6 +11,7 @@
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include "sccb.h"
#include "sensor.h"
#include <stdio.h>
#include "sdkconfig.h"
#if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
@@ -36,12 +37,10 @@ const int SCCB_I2C_PORT = 1;
#else
const int SCCB_I2C_PORT = 0;
#endif
static uint8_t ESP_SLAVE_ADDR = 0x3c;
int SCCB_Init(int pin_sda, int pin_scl)
{
ESP_LOGI(TAG, "pin_sda %d pin_scl %d\n", pin_sda, pin_scl);
//log_i("SCCB_Init start");
ESP_LOGI(TAG, "pin_sda %d pin_scl %d", pin_sda, pin_scl);
i2c_config_t conf;
memset(&conf, 0, sizeof(i2c_config_t));
conf.mode = I2C_MODE_MASTER;
@@ -56,10 +55,30 @@ int SCCB_Init(int pin_sda, int pin_scl)
return 0;
}
uint8_t SCCB_Probe()
int SCCB_Deinit(void)
{
return i2c_driver_delete(SCCB_I2C_PORT);
}
uint8_t SCCB_Probe(void)
{
uint8_t slave_addr = 0x0;
while(slave_addr < 0x7f) {
// for (size_t i = 1; i < 0x80; i++) {
// i2c_cmd_handle_t cmd = i2c_cmd_link_create();
// i2c_master_start(cmd);
// i2c_master_write_byte(cmd, ( i << 1 ) | WRITE_BIT, ACK_CHECK_EN);
// i2c_master_stop(cmd);
// esp_err_t ret = i2c_master_cmd_begin(SCCB_I2C_PORT, cmd, 1000 / portTICK_RATE_MS);
// i2c_cmd_link_delete(cmd);
// if( ret == ESP_OK) {
// ESP_LOGW(TAG, "Found I2C Device at 0x%02X", i);
// }
// }
for (size_t i = 0; i < CAMERA_MODEL_MAX; i++) {
if (slave_addr == camera_sensor[i].sccb_addr) {
continue;
}
slave_addr = camera_sensor[i].sccb_addr;
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, ( slave_addr << 1 ) | WRITE_BIT, ACK_CHECK_EN);
@@ -67,12 +86,10 @@ uint8_t SCCB_Probe()
esp_err_t ret = i2c_master_cmd_begin(SCCB_I2C_PORT, cmd, 1000 / portTICK_RATE_MS);
i2c_cmd_link_delete(cmd);
if( ret == ESP_OK) {
ESP_SLAVE_ADDR = slave_addr;
return ESP_SLAVE_ADDR;
return slave_addr;
}
slave_addr++;
}
return ESP_SLAVE_ADDR;
return 0;
}
uint8_t SCCB_Read(uint8_t slv_addr, uint8_t reg)

24
code/components/esp32-camera-master/driver/sensor.c
View File

@@ -1,5 +1,19 @@
#include <stdio.h>
#include "sensor.h"
const camera_sensor_info_t camera_sensor[CAMERA_MODEL_MAX] = {
// The sequence must be consistent with camera_model_t
{CAMERA_OV7725, "OV7725", OV7725_SCCB_ADDR, OV7725_PID, FRAMESIZE_VGA, false},
{CAMERA_OV2640, "OV2640", OV2640_SCCB_ADDR, OV2640_PID, FRAMESIZE_UXGA, true},
{CAMERA_OV3660, "OV3660", OV3660_SCCB_ADDR, OV3660_PID, FRAMESIZE_QXGA, true},
{CAMERA_OV5640, "OV5640", OV5640_SCCB_ADDR, OV5640_PID, FRAMESIZE_QSXGA, true},
{CAMERA_OV7670, "OV7670", OV7670_SCCB_ADDR, OV7670_PID, FRAMESIZE_VGA, false},
{CAMERA_NT99141, "NT99141", NT99141_SCCB_ADDR, NT99141_PID, FRAMESIZE_HD, true},
{CAMERA_GC2145, "GC2145", GC2145_SCCB_ADDR, GC2145_PID, FRAMESIZE_UXGA, false},
{CAMERA_GC032A, "GC032A", GC032A_SCCB_ADDR, GC032A_PID, FRAMESIZE_VGA, false},
{CAMERA_GC0308, "GC0308", GC0308_SCCB_ADDR, GC0308_PID, FRAMESIZE_VGA, false},
};
const resolution_info_t resolution[FRAMESIZE_INVALID] = {
{ 96, 96, ASPECT_RATIO_1X1 }, /* 96x96 */
{ 160, 120, ASPECT_RATIO_4X3 }, /* QQVGA */
@@ -26,3 +40,13 @@ const resolution_info_t resolution[FRAMESIZE_INVALID] = {
{ 1088, 1920, ASPECT_RATIO_9X16 }, /* Portrait FHD */
{ 2560, 1920, ASPECT_RATIO_4X3 }, /* QSXGA */
};
camera_sensor_info_t *esp_camera_sensor_get_info(sensor_id_t *id)
{
for (int i = 0; i < CAMERA_MODEL_MAX; i++) {
if (id->PID == camera_sensor[i].pid) {
return (camera_sensor_info_t *)&camera_sensor[i];
}
}
return NULL;
}

61
code/components/esp32-camera-master/driver/xclk.c
View File

@@ -1,61 +0,0 @@
#include "driver/gpio.h"
#include "driver/ledc.h"
#include "esp_err.h"
#include "esp_log.h"
#include "esp_system.h"
#include "xclk.h"
#if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
#include "esp32-hal-log.h"
#else
#include "esp_log.h"
static const char* TAG = "camera_xclk";
#endif
esp_err_t xclk_timer_conf(int ledc_timer, int xclk_freq_hz)
{
ledc_timer_config_t timer_conf;
timer_conf.duty_resolution = 2;
timer_conf.freq_hz = xclk_freq_hz;
timer_conf.speed_mode = LEDC_HIGH_SPEED_MODE;
#if ESP_IDF_VERSION_MAJOR >= 4
timer_conf.clk_cfg = LEDC_AUTO_CLK;
#endif
timer_conf.timer_num = (ledc_timer_t)ledc_timer;
esp_err_t err = ledc_timer_config(&timer_conf);
if (err != ESP_OK) {
ESP_LOGE(TAG, "ledc_timer_config failed for freq %d, rc=%x", xclk_freq_hz, err);
}
return err;
}
esp_err_t camera_enable_out_clock(camera_config_t* config)
{
periph_module_enable(PERIPH_LEDC_MODULE);
esp_err_t err = xclk_timer_conf(config->ledc_timer, config->xclk_freq_hz);
if (err != ESP_OK) {
ESP_LOGE(TAG, "ledc_timer_config failed, rc=%x", err);
return err;
}
ledc_channel_config_t ch_conf;
ch_conf.gpio_num = config->pin_xclk;
ch_conf.speed_mode = LEDC_HIGH_SPEED_MODE;
ch_conf.channel = config->ledc_channel;
ch_conf.intr_type = LEDC_INTR_DISABLE;
ch_conf.timer_sel = config->ledc_timer;
ch_conf.duty = 2;
ch_conf.hpoint = 0;
err = ledc_channel_config(&ch_conf);
if (err != ESP_OK) {
ESP_LOGE(TAG, "ledc_channel_config failed, rc=%x", err);
return err;
}
return ESP_OK;
}
void camera_disable_out_clock()
{
periph_module_disable(PERIPH_LEDC_MODULE);
}