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fix(hal): add v4l2 control helper #168

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Merged
baba-dev merged 1 commit into from
Sep 20, 2025
Merged

fix(hal): add v4l2 control helper #168

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26 changes: 26 additions & 0 deletions platforms/tab5/main/hal/components/hal_camera.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
*/
#include <driver/gpio.h>
#include <fcntl.h>
#include <inttypes.h>
#include <memory>
#include <mooncake_log.h>
#include <stdlib.h>
Expand Down Expand Up @@ -80,6 +81,31 @@ typedef enum
EXAMPLE_VIDEO_FMT_YUV420 = V4L2_PIX_FMT_YUV420,
} example_fmt_t;

static bool set_sensor_control(int fd, uint32_t control_id, int32_t value, const char* control_name)
{
struct v4l2_control control = {};
control.id = control_id;
control.value = value;

if (ioctl(fd, VIDIOC_S_CTRL, &control) == 0)
{
ESP_LOGI(TAG,
"Set %s (0x%08" PRIx32 ") to %" PRId32,
control_name != NULL ? control_name : "control",
control_id,
value);
return true;
}

ESP_LOGW(TAG,
"Failed to set %s (0x%08" PRIx32 ") to %" PRId32 ": %s",
control_name != NULL ? control_name : "control",
control_id,
value,
strerror(errno));
return false;
}

/**
* @brief Open the video device and initialize the video device to use `init_fmt` as the output
* format.
Expand Down
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