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feat(ssd1306): added the function of setting contrast

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Merges https://github.com/espressif/esp-idf/pull/18193
This commit is contained in:
MistyRainDreamX
2026-02-02 11:30:02 +08:00
committed by morris
parent 13730111e3
commit 89e3721d58
2 changed files with 12 additions and 1 deletions
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components/esp_lcd/src/esp_lcd_panel_ssd1306.c
+8 -1
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@@ -41,6 +41,7 @@ static const char *TAG = "lcd_panel.ssd1306";
#define SSD1306_CMD_MIRROR_Y_OFF 0xC0
#define SSD1306_CMD_MIRROR_Y_ON 0xC8
#define SSD1306_CMD_SET_COMPINS 0xDA
#define SSD1306_CMD_SET_CONTRAST 0x81
static esp_err_t panel_ssd1306_del(esp_lcd_panel_t *panel);
static esp_err_t panel_ssd1306_reset(esp_lcd_panel_t *panel);
@@ -56,6 +57,7 @@ typedef struct {
esp_lcd_panel_t base;
esp_lcd_panel_io_handle_t io;
uint8_t height;
uint8_t contrast;
gpio_num_t reset_gpio_num;
int x_gap;
int y_gap;
@@ -91,7 +93,8 @@ esp_err_t esp_lcd_new_panel_ssd1306(const esp_lcd_panel_io_handle_t io, const es
ssd1306->bits_per_pixel = panel_dev_config->bits_per_pixel;
ssd1306->reset_gpio_num = panel_dev_config->reset_gpio_num;
ssd1306->reset_level = panel_dev_config->flags.reset_active_high;
ssd1306->height = ssd1306_spec_config ? ssd1306_spec_config->height : 64;
ssd1306->height = (ssd1306_spec_config != NULL && ssd1306_spec_config->height != 0) ? ssd1306_spec_config->height : 64;
ssd1306->contrast = (ssd1306_spec_config != NULL && ssd1306_spec_config->contrast != 0) ? ssd1306_spec_config->contrast : 128;
ssd1306->base.del = panel_ssd1306_del;
ssd1306->base.reset = panel_ssd1306_reset;
ssd1306->base.init = panel_ssd1306_init;
@@ -166,6 +169,10 @@ static esp_err_t panel_ssd1306_init(esp_lcd_panel_t *panel)
"io tx param SSD1306_CMD_MIRROR_X_OFF failed");
ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, SSD1306_CMD_MIRROR_Y_OFF, NULL, 0), TAG,
"io tx param SSD1306_CMD_MIRROR_Y_OFF failed");
ESP_RETURN_ON_ERROR(esp_lcd_panel_io_tx_param(io, SSD1306_CMD_SET_CONTRAST, (uint8_t[]) {
ssd1306->contrast // set display contrast
}, 1), TAG, "io tx param SSD1306_CMD_SET_CONTRAST failed");
return ESP_OK;
}