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update for new gfx lib

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Drath Vader
2026-08-27 13:42:07 +02:00
parent 9f96d7d100
commit 4d32b00b7a
1 changed files with 10 additions and 4 deletions
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14
st7920.c
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@@ -104,7 +104,10 @@ esp_err_t st7920_init(const st7920_config_t *config, st7920_device_t *device) {
return ESP_OK; return ESP_OK;
} }
esp_err_t st7920_clear(st7920_device_t *dev) {
esp_err_t st7920_clear(void *p) {
st7920_device_t* dev = (st7920_device_t*)p;
memset(dev->framebuffer, 0, sizeof(dev->framebuffer)); memset(dev->framebuffer, 0, sizeof(dev->framebuffer));
// Clear display RAM // Clear display RAM
@@ -120,7 +123,8 @@ esp_err_t st7920_set_backlight(const st7920_device_t *dev, const bool backlight)
return gpio_set_level(dev->pin_bl, backlight); return gpio_set_level(dev->pin_bl, backlight);
} }
esp_err_t st7920_update_screen(const st7920_device_t *dev) { esp_err_t st7920_update_screen(const void *p) {
const st7920_device_t* dev = (st7920_device_t*)p;
// ST7920 is actually two 128x32 disps, we send row by row to each of them // ST7920 is actually two 128x32 disps, we send row by row to each of them
for (uint8_t y = 0; y < 64; y++) { for (uint8_t y = 0; y < 64; y++) {
const bool upper_half = y < 32; const bool upper_half = y < 32;
@@ -147,10 +151,12 @@ static void st7920_set_pixel_color(st7920_device_t *dev, const uint8_t x, const
dev->framebuffer[byte_index] &= ~(1 << bit_index); dev->framebuffer[byte_index] &= ~(1 << bit_index);
} }
void st7920_draw_pixel(void *dev, const uint8_t x, const uint8_t y) { esp_err_t st7920_draw_pixel(void *dev, const uint8_t x, const uint8_t y) {
st7920_set_pixel_color(dev, x, y, 1); st7920_set_pixel_color(dev, x, y, 1);
return ESP_OK;
} }
void st7920_clear_pixel(void *dev, const uint8_t x, const uint8_t y) { esp_err_t st7920_clear_pixel(void *dev, const uint8_t x, const uint8_t y) {
st7920_set_pixel_color(dev, x, y, 0); st7920_set_pixel_color(dev, x, y, 0);
return ESP_OK;
} }