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Update SSD1306 driver

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This commit is contained in:
Carlos Diaz 2021-01-09 20:58:23 -06:00
parent 77f8ed1fa1
commit 432ad87208
2 changed files with 13 additions and 14 deletions
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19
lvgl_tft/ssd1306.c
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@ -130,7 +130,7 @@ void ssd1306_init()
i2c_cmd_link_delete(cmd);
}
void ssd1306_set_px_cb(struct _disp_drv_t * disp_drv, uint8_t * buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
void ssd1306_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t * buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
lv_color_t color, lv_opa_t opa) {
uint16_t byte_index = x + (( y>>3 ) * buf_w);
uint8_t bit_index = y & 0x7;
@ -147,13 +147,9 @@ void ssd1306_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t
uint8_t row1 = 0, row2 = 0;
i2c_cmd_handle_t cmd;
#if defined CONFIG_LV_DISPLAY_ORIENTATION_LANDSCAPE
// Divide by 8
row1 = area->y1 >> 3;
row2 = area->y2 >> 3;
#else
row1 = area->y1>>3;
row2 = area->y2>>3;
#endif
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
@ -185,16 +181,19 @@ void ssd1306_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t
lv_disp_flush_ready(disp_drv);
}
void ssd1306_rounder(struct _disp_drv_t * disp_drv, lv_area_t *area)
// workaround: always send complete size display buffer, no partial update
void ssd1306_rounder(lv_disp_drv_t * disp_drv, lv_area_t *area)
{
// area->y1 = (area->y1 & (~0x7));
// area->y2 = (area->y2 & (~0x7)) + 7;
// workaround: always send complete size display buffer
uint8_t hor_max = disp_drv->hor_res;
uint8_t ver_max = disp_drv->ver_res;
area->x1 = 0;
area->y1 = 0;
area->x2 = LV_HOR_RES_MAX-1;
area->y2 = LV_VER_RES_MAX-1;
area->x2 = hor_max - 1;
area->y2 = ver_max - 1;
}
void ssd1306_sleep_in()

4
lvgl_tft/ssd1306.h
View file

@ -38,8 +38,8 @@ extern "C" {
**********************/
void ssd1306_init(void);
void ssd1306_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
void ssd1306_rounder(struct _disp_drv_t * disp_drv, lv_area_t *area);
void ssd1306_set_px_cb(struct _disp_drv_t * disp_drv, uint8_t * buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
void ssd1306_rounder(lv_disp_drv_t * disp_drv, lv_area_t *area);
void ssd1306_set_px_cb(lv_disp_drv_t * disp_drv, uint8_t * buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
lv_color_t color, lv_opa_t opa);
void ssd1306_sleep_in(void);