273 lines
6.9 KiB
C
273 lines
6.9 KiB
C
/**
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* @file GC9A01.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "GC9A01.h"
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#include "disp_spi.h"
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#include "driver/gpio.h"
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#include "esp_log.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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/*********************
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* DEFINES
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*********************/
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#define TAG "GC9A01"
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/**********************
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* TYPEDEFS
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**********************/
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/*The LCD needs a bunch of command/argument values to be initialized. They are stored in this struct. */
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typedef struct {
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uint8_t cmd;
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uint8_t data[16];
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uint8_t databytes; //No of data in data; bit 7 = delay after set; 0xFF = end of cmds.
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} lcd_init_cmd_t;
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static void GC9A01_set_orientation(uint8_t orientation);
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static void GC9A01_send_cmd(uint8_t cmd);
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static void GC9A01_send_data(void * data, uint16_t length);
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static void GC9A01_send_color(void * data, uint16_t length);
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/**********************
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* STATIC VARIABLES
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**********************/
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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void GC9A01_init(void)
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{
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lcd_init_cmd_t GC_init_cmds[]={
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////////////////////////////////////////////
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{0xEF, {0}, 0},
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{0xEB, {0x14}, 1},
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{0xFE, {0}, 0},
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{0xEF, {0}, 0},
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{0xEB, {0x14}, 1},
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{0x84, {0x40}, 1},
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{0x85, {0xFF}, 1},
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{0x86, {0xFF}, 1},
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{0x87, {0xFF}, 1},
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{0x88, {0x0A}, 1},
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{0x89, {0x21}, 1},
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{0x8A, {0x00}, 1},
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{0x8B, {0x80}, 1},
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{0x8C, {0x01}, 1},
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{0x8D, {0x01}, 1},
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{0x8E, {0xFF}, 1},
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{0x8F, {0xFF}, 1},
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{0xB6, {0x00, 0x20}, 2},
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//call orientation
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{0x3A, {0x05}, 1},
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{0x90, {0x08, 0x08, 0X08, 0X08}, 4},
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{0xBD, {0x06}, 1},
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{0xBC, {0x00}, 1},
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{0xFF, {0x60, 0x01, 0x04}, 3},
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{0xC3, {0x13}, 1},
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{0xC4, {0x13}, 1},
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{0xC9, {0x22}, 1},
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{0xBE, {0x11}, 1},
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{0xE1, {0x10, 0x0E}, 2},
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{0xDF, {0x21, 0x0C, 0x02}, 3},
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{0xF0, {0x45, 0x09, 0x08, 0x08, 0x26, 0x2A}, 6},
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{0xF1, {0x43, 0x70, 0x72, 0x36, 0x37, 0x6F}, 6},
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{0xF2, {0x45, 0x09, 0x08, 0x08, 0x26, 0x2A}, 6},
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{0xF3, {0x43, 0x70, 0x72, 0x36, 0x37, 0x6F}, 6},
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{0xED, {0x1B, 0x0B}, 2},
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{0xAE, {0x77}, 1},
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{0xCD, {0x63}, 1},
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{0x70, {0x07, 0x07, 0x04, 0x0E, 0x0F, 0x09, 0x07, 0X08, 0x03}, 9},
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{0xE8, {0x34}, 1},
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{0x62, {0x18, 0x0D, 0x71, 0xED, 0x70, 0x70, 0x18, 0X0F, 0x71, 0xEF, 0x70, 0x70}, 12},
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{0x63, {0x18, 0x11, 0x71, 0xF1, 0x70, 0x70, 0x18, 0X13, 0x71, 0xF3, 0x70, 0x70}, 12},
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{0x64, {0x28, 0x29, 0xF1, 0x01, 0xF1, 0x00, 0x07}, 7},
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{0x66, {0x3C, 0x00, 0xCD, 0x67, 0x45, 0x45, 0x10, 0X00, 0x00, 0x00}, 10},
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{0x67, {0x00, 0x3C, 0x00, 0x00, 0x00, 0x01, 0x54, 0X10, 0x32, 0x98}, 10},
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{0x74, {0x10, 0x85, 0x80, 0x00, 0x00, 0x4E, 0x00}, 7},
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{0x98, {0x3E, 0x07}, 2},
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{0x35, {0}, 0},
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{0x21, {0}, 0},
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{0x11, {0}, 0x80}, //0x80 delay flag
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{0x29, {0}, 0x80}, //0x80 delay flag
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{0, {0}, 0xff}, //init end flag
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////////////////////////////////////////////
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};
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#if GC9A01_BCKL == 15
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gpio_config_t io_conf;
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io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
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io_conf.mode = GPIO_MODE_OUTPUT;
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io_conf.pin_bit_mask = GPIO_SEL_15;
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io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
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io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
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gpio_config(&io_conf);
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#endif
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//Initialize non-SPI GPIOs
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gpio_pad_select_gpio(GC9A01_DC);
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gpio_set_direction(GC9A01_DC, GPIO_MODE_OUTPUT);
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gpio_pad_select_gpio(GC9A01_RST);
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gpio_set_direction(GC9A01_RST, GPIO_MODE_OUTPUT);
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#if GC9A01_ENABLE_BACKLIGHT_CONTROL
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gpio_pad_select_gpio(GC9A01_BCKL);
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gpio_set_direction(GC9A01_BCKL, GPIO_MODE_OUTPUT);
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#endif
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//Reset the display
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gpio_set_level(GC9A01_RST, 0);
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vTaskDelay(100 / portTICK_RATE_MS);
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gpio_set_level(GC9A01_RST, 1);
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vTaskDelay(100 / portTICK_RATE_MS);
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ESP_LOGI(TAG, "Initialization.");
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//Send all the commands
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uint16_t cmd = 0;
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while (GC_init_cmds[cmd].databytes!=0xff) {
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GC9A01_send_cmd(GC_init_cmds[cmd].cmd);
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GC9A01_send_data(GC_init_cmds[cmd].data, GC_init_cmds[cmd].databytes&0x1F);
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if (GC_init_cmds[cmd].databytes & 0x80) {
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vTaskDelay(100 / portTICK_RATE_MS);
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}
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cmd++;
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}
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GC9A01_enable_backlight(true);
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GC9A01_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
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#if GC9A01_INVERT_COLORS == 1
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GC9A01_send_cmd(0x21);
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#else
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GC9A01_send_cmd(0x20);
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#endif
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}
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void GC9A01_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
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{
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uint8_t data[4];
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/*Column addresses*/
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GC9A01_send_cmd(0x2A); //0x2A
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data[0] = (area->x1 >> 8) & 0xFF;
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data[1] = area->x1 & 0xFF;
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data[2] = (area->x2 >> 8) & 0xFF;
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data[3] = area->x2 & 0xFF;
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GC9A01_send_data(data, 4);
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/*Page addresses*/
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GC9A01_send_cmd(0x2B); //0x2B
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data[0] = (area->y1 >> 8) & 0xFF;
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data[1] = area->y1 & 0xFF;
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data[2] = (area->y2 >> 8) & 0xFF;
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data[3] = area->y2 & 0xFF;
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GC9A01_send_data(data, 4);
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/*Memory write*/
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GC9A01_send_cmd(0x2C); //0x2C
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uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
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GC9A01_send_color((void*)color_map, size * 2);
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}
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void GC9A01_enable_backlight(bool backlight)
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{
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#if GC9A01_ENABLE_BACKLIGHT_CONTROL
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ESP_LOGI(TAG, "%s backlight.", backlight ? "Enabling" : "Disabling");
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uint32_t tmp = 0;
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#if (GC9A01_BCKL_ACTIVE_LVL==1)
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tmp = backlight ? 1 : 0;
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#else
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tmp = backlight ? 0 : 1;
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#endif
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gpio_set_level(GC9A01_BCKL, tmp);
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#endif
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}
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void GC9A01_sleep_in()
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{
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uint8_t data[] = {0x08};
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GC9A01_send_cmd(0x10); //0x10 Enter Sleep Mode
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GC9A01_send_data(&data, 1);
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}
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void GC9A01_sleep_out()
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{
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uint8_t data[] = {0x08};
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GC9A01_send_cmd(0x11); //0x11 Sleep OUT
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GC9A01_send_data(&data, 1);
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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static void GC9A01_send_cmd(uint8_t cmd)
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{
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disp_wait_for_pending_transactions();
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gpio_set_level(GC9A01_DC, 0); /*Command mode*/
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disp_spi_send_data(&cmd, 1);
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}
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static void GC9A01_send_data(void * data, uint16_t length)
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{
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disp_wait_for_pending_transactions();
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gpio_set_level(GC9A01_DC, 1); /*Data mode*/
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disp_spi_send_data(data, length);
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}
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static void GC9A01_send_color(void * data, uint16_t length)
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{
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disp_wait_for_pending_transactions();
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gpio_set_level(GC9A01_DC, 1); /*Data mode*/
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disp_spi_send_colors(data, length);
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}
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static void GC9A01_set_orientation(uint8_t orientation)
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{
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// ESP_ASSERT(orientation < 4);
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const char *orientation_str[] = {
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"PORTRAIT", "PORTRAIT_INVERTED", "LANDSCAPE", "LANDSCAPE_INVERTED"
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};
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ESP_LOGI(TAG, "Display orientation: %s", orientation_str[orientation]);
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#if defined CONFIG_LV_PREDEFINED_DISPLAY_M5STACK
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uint8_t data[] = {0x68, 0x68, 0x08, 0x08}; ///
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#elif defined (CONFIG_LV_PREDEFINED_DISPLAY_WROVER4)
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uint8_t data[] = {0x4C, 0x88, 0x28, 0xE8}; ///
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#elif defined (CONFIG_LV_PREDEFINED_DISPLAY_NONE)
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uint8_t data[] = {0x08, 0xC8, 0x68, 0xA8}; ///ggggg
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#endif
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ESP_LOGI(TAG, "0x36 command value: 0x%02X", data[orientation]);
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GC9A01_send_cmd(0x36);
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GC9A01_send_data((void *) &data[orientation], 1);
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}
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