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feat(csi): add csi color format conversion

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This commit is contained in:
gaoxu
2026-01-26 11:37:09 +08:00
parent b53427075e
commit 493b67fdc7
4 changed files with 188 additions and 8 deletions
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components/esp_driver_cam/csi/src/esp_cam_ctlr_csi.c
+47 -3
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@@ -20,6 +20,8 @@
#include "esp_cam_ctlr_csi_internal.h"
#include "hal/mipi_csi_ll.h"
#include "hal/color_hal.h"
#include "hal/efuse_hal.h"
#include "soc/chip_revision.h"
#include "esp_private/periph_ctrl.h"
#include "esp_private/mipi_csi_share_hw_ctrl.h"
#include "esp_private/esp_cache_private.h"
@@ -53,6 +55,7 @@ static esp_err_t s_csi_ctlr_disable(esp_cam_ctlr_handle_t ctlr);
static esp_err_t s_ctlr_csi_receive(esp_cam_ctlr_handle_t handle, esp_cam_ctlr_trans_t *trans, uint32_t timeout_ms);
static void *s_csi_ctlr_alloc_buffer(esp_cam_ctlr_t *handle, size_t size, uint32_t buf_caps);
static esp_err_t s_csi_ctlr_format_conversion(esp_cam_ctlr_t *handle, const cam_ctlr_format_conv_config_t *config);
static bool s_is_color_format_conversion_supported(cam_ctlr_color_t color_format);
static esp_err_t s_csi_claim_controller(csi_controller_t *controller)
{
@@ -216,6 +219,12 @@ esp_err_t esp_cam_new_csi_ctlr(const esp_cam_ctlr_csi_config_t *config, esp_cam_
ESP_GOTO_ON_ERROR(esp_pm_lock_create(ESP_PM_APB_FREQ_MAX, 0, "cam_csi_ctlr", &ctlr->pm_lock), err, TAG, "failed to create pm lock");
#endif //CONFIG_PM_ENABLE
cam_ctlr_format_conv_config_t format_conv_config = {
.src_format = config->input_data_color_type,
.dst_format = config->output_data_color_type,
};
ESP_GOTO_ON_ERROR(s_csi_ctlr_format_conversion(&(ctlr->base), &format_conv_config), err, TAG, "failed to configure format conversion");
ctlr->spinlock = (portMUX_TYPE)portMUX_INITIALIZER_UNLOCKED;
ctlr->csi_fsm = CSI_FSM_INIT;
ctlr->base.del = s_ctlr_del;
@@ -571,9 +580,44 @@ static void *s_csi_ctlr_alloc_buffer(esp_cam_ctlr_t *handle, size_t size, uint32
return buffer;
}
static bool s_is_color_format_conversion_supported(cam_ctlr_color_t color_format)
{
return (color_format == CAM_CTLR_COLOR_RGB888 ||
color_format == CAM_CTLR_COLOR_RGB565 ||
color_format == CAM_CTLR_COLOR_YUV420 ||
color_format == CAM_CTLR_COLOR_YUV422_YVYU ||
color_format == CAM_CTLR_COLOR_YUV422_YUYV ||
color_format == CAM_CTLR_COLOR_YUV422_UYVY ||
color_format == CAM_CTLR_COLOR_YUV422_VYUY);
}
static esp_err_t s_csi_ctlr_format_conversion(esp_cam_ctlr_t *handle, const cam_ctlr_format_conv_config_t *config)
{
ESP_RETURN_ON_FALSE(handle, ESP_ERR_INVALID_ARG, TAG, "invalid argument: null pointer");
// CSI controller doesn't support format conversion yet
return ESP_ERR_NOT_SUPPORTED;
ESP_RETURN_ON_FALSE(handle && config, ESP_ERR_INVALID_ARG, TAG, "invalid argument: null pointer");
csi_controller_t *ctlr = __containerof(handle, csi_controller_t, base);
if (config->src_format == config->dst_format) {
mipi_csi_brg_ll_set_color_mode_bypass(ctlr->hal.bridge_dev, true);
return ESP_OK;
} else {
#if CONFIG_IDF_TARGET_ESP32P4
//If ESP32P4 chip version is less than v3.0, not support color format conversion
unsigned chip_version = efuse_hal_chip_revision();
if (!ESP_CHIP_REV_ABOVE(chip_version, 300)) {
return ESP_ERR_NOT_SUPPORTED;
}
#endif
if (!s_is_color_format_conversion_supported(config->src_format) || !s_is_color_format_conversion_supported(config->dst_format)) {
return ESP_ERR_NOT_SUPPORTED;
} else {
mipi_csi_brg_ll_set_input_color_format(ctlr->hal.bridge_dev, config->src_format);
mipi_csi_brg_ll_set_output_color_format(ctlr->hal.bridge_dev, config->dst_format);
mipi_csi_brg_ll_set_color_mode_bypass(ctlr->hal.bridge_dev, false);
mipi_csi_brg_ll_enable_color_conversion(ctlr->hal.bridge_dev, true);
}
ctlr->in_color_format = config->src_format;
ctlr->out_color_format = config->dst_format;
return ESP_OK;
}
}