lvgl_esp32_drivers/lvgl_tft/GC9A01.c

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/**
* @file GC9A01.c
*
*/
/*********************
* INCLUDES
*********************/
#include "GC9A01.h"
#include "disp_spi.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
/*********************
* DEFINES
*********************/
#define TAG "GC9A01"
/**********************
* TYPEDEFS
**********************/
/*The LCD needs a bunch of command/argument values to be initialized. They are stored in this struct. */
typedef struct {
uint8_t cmd;
uint8_t data[16];
uint8_t databytes; //No of data in data; bit 7 = delay after set; 0xFF = end of cmds.
} lcd_init_cmd_t;
/**********************
* STATIC PROTOTYPES
**********************/
static void GC9A01_set_orientation(uint8_t orientation);
static void GC9A01_send_cmd(uint8_t cmd);
static void GC9A01_send_data(void * data, uint16_t length);
static void GC9A01_send_color(void * data, uint16_t length);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void GC9A01_init(void)
{
lcd_init_cmd_t GC_init_cmds[]={
////////////////////////////////////////////
{0xEF, {0}, 0},
{0xEB, {0x14}, 1},
{0xFE, {0}, 0},
{0xEF, {0}, 0},
{0xEB, {0x14}, 1},
{0x84, {0x40}, 1},
{0x85, {0xFF}, 1},
{0x86, {0xFF}, 1},
{0x87, {0xFF}, 1},
{0x88, {0x0A}, 1},
{0x89, {0x21}, 1},
{0x8A, {0x00}, 1},
{0x8B, {0x80}, 1},
{0x8C, {0x01}, 1},
{0x8D, {0x01}, 1},
{0x8E, {0xFF}, 1},
{0x8F, {0xFF}, 1},
{0xB6, {0x00, 0x20}, 2},
//call orientation
{0x3A, {0x05}, 1},
{0x90, {0x08, 0x08, 0X08, 0X08}, 4},
{0xBD, {0x06}, 1},
{0xBC, {0x00}, 1},
{0xFF, {0x60, 0x01, 0x04}, 3},
{0xC3, {0x13}, 1},
{0xC4, {0x13}, 1},
{0xC9, {0x22}, 1},
{0xBE, {0x11}, 1},
{0xE1, {0x10, 0x0E}, 2},
{0xDF, {0x21, 0x0C, 0x02}, 3},
{0xF0, {0x45, 0x09, 0x08, 0x08, 0x26, 0x2A}, 6},
{0xF1, {0x43, 0x70, 0x72, 0x36, 0x37, 0x6F}, 6},
{0xF2, {0x45, 0x09, 0x08, 0x08, 0x26, 0x2A}, 6},
{0xF3, {0x43, 0x70, 0x72, 0x36, 0x37, 0x6F}, 6},
{0xED, {0x1B, 0x0B}, 2},
{0xAE, {0x77}, 1},
{0xCD, {0x63}, 1},
{0x70, {0x07, 0x07, 0x04, 0x0E, 0x0F, 0x09, 0x07, 0X08, 0x03}, 9},
{0xE8, {0x34}, 1},
{0x62, {0x18, 0x0D, 0x71, 0xED, 0x70, 0x70, 0x18, 0X0F, 0x71, 0xEF, 0x70, 0x70}, 12},
{0x63, {0x18, 0x11, 0x71, 0xF1, 0x70, 0x70, 0x18, 0X13, 0x71, 0xF3, 0x70, 0x70}, 12},
{0x64, {0x28, 0x29, 0xF1, 0x01, 0xF1, 0x00, 0x07}, 7},
{0x66, {0x3C, 0x00, 0xCD, 0x67, 0x45, 0x45, 0x10, 0X00, 0x00, 0x00}, 10},
{0x67, {0x00, 0x3C, 0x00, 0x00, 0x00, 0x01, 0x54, 0X10, 0x32, 0x98}, 10},
{0x74, {0x10, 0x85, 0x80, 0x00, 0x00, 0x4E, 0x00}, 7},
{0x98, {0x3E, 0x07}, 2},
{0x35, {0}, 0},
{0x21, {0}, 0},
{0x11, {0}, 0x80}, //0x80 delay flag
{0x29, {0}, 0x80}, //0x80 delay flag
{0, {0}, 0xff}, //init end flag
////////////////////////////////////////////
};
//Initialize non-SPI GPIOs
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gpio_reset_pin(GC9A01_DC);
gpio_set_direction(GC9A01_DC, GPIO_MODE_OUTPUT);
#if GC9A01_USE_RST
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gpio_reset_pin(GC9A01_RST);
gpio_set_direction(GC9A01_RST, GPIO_MODE_OUTPUT);
//Reset the display
gpio_set_level(GC9A01_RST, 0);
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vTaskDelay(100 / portTICK_PERIOD_MS);
gpio_set_level(GC9A01_RST, 1);
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vTaskDelay(100 / portTICK_PERIOD_MS);
#endif
ESP_LOGI(TAG, "Initialization.");
//Send all the commands
uint16_t cmd = 0;
while (GC_init_cmds[cmd].databytes!=0xff) {
GC9A01_send_cmd(GC_init_cmds[cmd].cmd);
GC9A01_send_data(GC_init_cmds[cmd].data, GC_init_cmds[cmd].databytes&0x1F);
if (GC_init_cmds[cmd].databytes & 0x80) {
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vTaskDelay(100 / portTICK_PERIOD_MS);
}
cmd++;
}
GC9A01_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
#if GC9A01_INVERT_COLORS == 1
GC9A01_send_cmd(0x21);
#else
GC9A01_send_cmd(0x20);
#endif
}
void GC9A01_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
{
uint8_t data[4];
/*Column addresses*/
GC9A01_send_cmd(0x2A); //0x2A
data[0] = (area->x1 >> 8) & 0xFF;
data[1] = area->x1 & 0xFF;
data[2] = (area->x2 >> 8) & 0xFF;
data[3] = area->x2 & 0xFF;
GC9A01_send_data(data, 4);
/*Page addresses*/
GC9A01_send_cmd(0x2B); //0x2B
data[0] = (area->y1 >> 8) & 0xFF;
data[1] = area->y1 & 0xFF;
data[2] = (area->y2 >> 8) & 0xFF;
data[3] = area->y2 & 0xFF;
GC9A01_send_data(data, 4);
/*Memory write*/
GC9A01_send_cmd(0x2C); //0x2C
uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
GC9A01_send_color((void*)color_map, size * 2);
}
void GC9A01_sleep_in()
{
uint8_t data[] = {0x08};
GC9A01_send_cmd(0x10); //0x10 Enter Sleep Mode
GC9A01_send_data(&data, 1);
}
void GC9A01_sleep_out()
{
uint8_t data[] = {0x08};
GC9A01_send_cmd(0x11); //0x11 Sleep OUT
GC9A01_send_data(&data, 1);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void GC9A01_send_cmd(uint8_t cmd)
{
disp_wait_for_pending_transactions();
gpio_set_level(GC9A01_DC, 0); /*Command mode*/
disp_spi_send_data(&cmd, 1);
}
static void GC9A01_send_data(void * data, uint16_t length)
{
disp_wait_for_pending_transactions();
gpio_set_level(GC9A01_DC, 1); /*Data mode*/
disp_spi_send_data(data, length);
}
static void GC9A01_send_color(void * data, uint16_t length)
{
disp_wait_for_pending_transactions();
gpio_set_level(GC9A01_DC, 1); /*Data mode*/
disp_spi_send_colors(data, length);
}
static void GC9A01_set_orientation(uint8_t orientation)
{
// ESP_ASSERT(orientation < 4);
const char *orientation_str[] = {
"PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
};
ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
#if defined CONFIG_LV_PREDEFINED_DISPLAY_M5STACK
uint8_t data[] = {0x68, 0x68, 0x08, 0x08}; ///
#elif defined (CONFIG_LV_PREDEFINED_DISPLAY_WROVER4)
uint8_t data[] = {0x4C, 0x88, 0x28, 0xE8}; ///
#elif defined (CONFIG_LV_PREDEFINED_DISPLAY_NONE)
uint8_t data[] = {0x08, 0xC8, 0x68, 0xA8}; ///ggggg
#endif
ESP_LOGI(TAG, "0x36 command value: 0x%02X", data[orientation]);
GC9A01_send_cmd(0x36);
GC9A01_send_data((void *) &data[orientation], 1);
}