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ili9341: Formatting

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This commit is contained in:
Alex Duchesne 2026-01-19 13:32:56 -05:00
parent 341687d6e4
commit fdd72f63ed
1 changed files with 31 additions and 36 deletions
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67
components/retro-go/drivers/display/ili9341.h
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@ -4,10 +4,6 @@
#include <driver/gpio.h> #include <driver/gpio.h>
#include <driver/ledc.h> #include <driver/ledc.h>
#if defined(RG_SCREEN_ROTATE) && RG_SCREEN_ROTATE != 0
#error "RG_SCREEN_ROTATE doesn't do anything on this driver, you have to use the 0x36 command during init!"
#endif
static spi_device_handle_t spi_dev; static spi_device_handle_t spi_dev;
static QueueHandle_t spi_transactions; static QueueHandle_t spi_transactions;
static QueueHandle_t spi_buffers; static QueueHandle_t spi_buffers;
@ -16,6 +12,14 @@ static QueueHandle_t spi_buffers;
#define SPI_BUFFER_COUNT (5) #define SPI_BUFFER_COUNT (5)
#define SPI_BUFFER_LENGTH (LCD_BUFFER_LENGTH * 2) #define SPI_BUFFER_LENGTH (LCD_BUFFER_LENGTH * 2)
#define ILI9341_CMD(cmd, data...) \
{ \
const uint8_t c = cmd, x[] = {data}; \
spi_queue_transaction(&c, 1, 0); \
if (sizeof(x)) \
spi_queue_transaction(&x, sizeof(x), 1); \
}
static inline uint16_t *spi_take_buffer(void) static inline uint16_t *spi_take_buffer(void)
{ {
uint16_t *buffer; uint16_t *buffer;
@ -141,14 +145,6 @@ static void spi_deinit(void)
RG_LOGE("Failed to properly terminate SPI driver!"); RG_LOGE("Failed to properly terminate SPI driver!");
} }
#define ILI9341_CMD(cmd, data...) \
{ \
const uint8_t c = cmd, x[] = {data}; \
spi_queue_transaction(&c, 1, 0); \
if (sizeof(x)) \
spi_queue_transaction(&x, sizeof(x), 1); \
}
static void lcd_set_backlight(float percent) static void lcd_set_backlight(float percent)
{ {
float level = RG_MIN(RG_MAX(percent / 100.f, 0), 1.f); float level = RG_MIN(RG_MAX(percent / 100.f, 0), 1.f);
@ -156,9 +152,6 @@ static void lcd_set_backlight(float percent)
#if defined(RG_GPIO_LCD_BCKL) #if defined(RG_GPIO_LCD_BCKL)
error_code = ledc_set_fade_time_and_start(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0, 0x1FFF * level, 50, 0); error_code = ledc_set_fade_time_and_start(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0, 0x1FFF * level, 50, 0);
#elif defined(RG_TARGET_QTPY_GAMER)
rg_i2c_gpio_set_direction(AW_TFT_BACKLIGHT, RG_GPIO_ANALOG_OUTPUT);
rg_i2c_gpio_set_level(AW_TFT_BACKLIGHT, level * 255);
#endif #endif
if (error_code) if (error_code)
@ -204,17 +197,20 @@ static void lcd_init(void)
#ifdef RG_GPIO_LCD_BCKL #ifdef RG_GPIO_LCD_BCKL
// Initialize backlight at 0% to avoid the lcd reset flash // Initialize backlight at 0% to avoid the lcd reset flash
ledc_timer_config(&(ledc_timer_config_t){ ledc_timer_config(&(ledc_timer_config_t){
.duty_resolution = LEDC_TIMER_13_BIT,
.freq_hz = 5000,
.speed_mode = LEDC_LOW_SPEED_MODE, .speed_mode = LEDC_LOW_SPEED_MODE,
.duty_resolution = LEDC_TIMER_13_BIT,
.timer_num = LEDC_TIMER_0, .timer_num = LEDC_TIMER_0,
.freq_hz = 5000,
}); });
ledc_channel_config(&(ledc_channel_config_t){ ledc_channel_config(&(ledc_channel_config_t){
.channel = LEDC_CHANNEL_0,
.duty = 0,
.gpio_num = RG_GPIO_LCD_BCKL, .gpio_num = RG_GPIO_LCD_BCKL,
.speed_mode = LEDC_LOW_SPEED_MODE, .speed_mode = LEDC_LOW_SPEED_MODE,
.channel = LEDC_CHANNEL_0,
.timer_sel = LEDC_TIMER_0, .timer_sel = LEDC_TIMER_0,
.duty = 0,
#ifdef RG_GPIO_LCD_BCKL_INVERT
.flags.output_invert = 1,
#endif
}); });
ledc_fade_func_install(0); ledc_fade_func_install(0);
#endif #endif
@ -231,25 +227,24 @@ static void lcd_init(void)
rg_usleep(100 * 1000); rg_usleep(100 * 1000);
gpio_set_level(RG_GPIO_LCD_RST, 1); gpio_set_level(RG_GPIO_LCD_RST, 1);
rg_usleep(10 * 1000); rg_usleep(10 * 1000);
#elif defined(RG_TARGET_QTPY_GAMER)
rg_i2c_gpio_set_direction(AW_TFT_RESET, RG_GPIO_OUTPUT);
rg_i2c_gpio_set_level(AW_TFT_RESET, 0);
rg_usleep(100 * 1000);
rg_i2c_gpio_set_level(AW_TFT_RESET, 1);
rg_usleep(10 * 1000);
#endif #endif
ILI9341_CMD(0x01); // Reset ILI9341_CMD(0x01); // Reset
rg_usleep(5 * 1000); // Wait 5ms after reset rg_usleep(5 * 1000); // Wait 5ms after reset
ILI9341_CMD(0x3A, 0X05); // Pixel Format Set RGB565 ILI9341_CMD(0x3A, 0X55); // COLMOD (Pixel Format Set RGB565 65k)
#ifdef RG_SCREEN_INIT #if defined(RG_SCREEN_ROTATION) && defined(RG_SCREEN_RGB_BGR)
RG_SCREEN_INIT(); // The rotation is designed so that the user can simply try all values 0-7 to find what works.
#else // It's simpler than trying to explain the MADCTL register bits, combined with hardware variations...
#warning "LCD init sequence is not defined for this device!" ILI9341_CMD(0x36, (RG_SCREEN_RGB_BGR ? 0x08 : 0x00) | (RG_SCREEN_ROTATION << 5)); // MADCTL (0x08=BGR, 0x20=MV, 0x40=MX, 0x80=MY)
#endif #endif
ILI9341_CMD(0x11); // Exit Sleep #ifdef RG_SCREEN_INIT
rg_usleep(10 * 1000);// Wait 10ms after sleep out RG_SCREEN_INIT();
ILI9341_CMD(0x29); // Display on #else
#warning "LCD init sequence is not defined for this device!"
#endif
ILI9341_CMD(0x11); // Exit Sleep
rg_usleep(10 * 1000); // Wait 10ms after sleep out
ILI9341_CMD(0x29); // Display on
} }
static void lcd_deinit(void) static void lcd_deinit(void)