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ili9488: Start updating to new display port interface (#137)

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ILI9488: Start updating to new display port interface
This commit is contained in:
Carlos Diaz 2021-11-17 21:00:07 -06:00 committed by GitHub
parent 2dad083264
commit c7607e93d8
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 95 additions and 80 deletions
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7
display_config.h
View file

@ -29,6 +29,13 @@ extern "C" {
#define ILI9341_INITIAL_ORIENTATION CONFIG_LV_DISPLAY_ORIENTATION
/* ILI9488 Configuration */
#if CONFIG_LV_DISP_USE_RST
#define ILI9488_USE_RST
#endif
#define ILI9488_INITIAL_ORIENTATION CONFIG_LV_DISPLAY_ORIENTATION
#ifdef __cplusplus
} /* extern "C" */
#endif

2
lvgl_tft/disp_driver.c
View file

@ -14,7 +14,7 @@ void *disp_driver_init(lv_disp_drv_t *drv)
#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9481
ili9481_init();
#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9488
ili9488_init();
ili9488_init(drv);
#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7789
st7789_init(drv);
#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ST7796S

105
lvgl_tft/ili9488.c
View file

@ -6,12 +6,10 @@
* INCLUDES
*********************/
#include "ili9488.h"
#include "disp_spi.h"
#include "driver/gpio.h"
#include "esp_heap_caps.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "disp_spi.h"
#include "display_port.h"
#include "esp_heap_caps.h"
/*********************
* DEFINES
@ -31,11 +29,12 @@ typedef struct {
/**********************
* STATIC PROTOTYPES
**********************/
static void ili9488_set_orientation(uint8_t orientation);
static void ili9488_set_orientation(lv_disp_drv_t * drv, uint8_t orientation);
static void ili9488_send_cmd(uint8_t cmd);
static void ili9488_send_data(void * data, uint16_t length);
static void ili9488_send_color(void * data, uint16_t length);
static void ili9488_send_cmd(lv_disp_drv_t * drv, uint8_t cmd);
static void ili9488_send_data(lv_disp_drv_t * drv, void * data, uint16_t length);
static void ili9488_send_color(lv_disp_drv_t * drv, void * data, uint16_t length);
static void ili9488_reset(lv_disp_drv_t * drv);
/**********************
* STATIC VARIABLES
@ -50,7 +49,7 @@ static void ili9488_send_color(void * data, uint16_t length);
**********************/
// From github.com/jeremyjh/ESP32_TFT_library
// From github.com/mvturnho/ILI9488-lvgl-ESP32-WROVER-B
void ili9488_init(void)
void ili9488_init(lv_disp_drv_t * drv)
{
lcd_init_cmd_t ili_init_cmds[]={
{ILI9488_CMD_SLEEP_OUT, {0x00}, 0x80},
@ -73,39 +72,24 @@ void ili9488_init(void)
{0, {0}, 0xff},
};
//Initialize non-SPI GPIOs
gpio_pad_select_gpio(ILI9488_DC);
gpio_set_direction(ILI9488_DC, GPIO_MODE_OUTPUT);
#if ILI9488_USE_RST
gpio_pad_select_gpio(ILI9488_RST);
gpio_set_direction(ILI9488_RST, GPIO_MODE_OUTPUT);
//Reset the display
gpio_set_level(ILI9488_RST, 0);
vTaskDelay(100 / portTICK_RATE_MS);
gpio_set_level(ILI9488_RST, 1);
vTaskDelay(100 / portTICK_RATE_MS);
#endif
ili9488_reset(drv);
LV_LOG_INFO("ILI9488 initialization.");
// Exit sleep
ili9488_send_cmd(0x01); /* Software reset */
vTaskDelay(100 / portTICK_RATE_MS);
//Send all the commands
uint16_t cmd = 0;
while (ili_init_cmds[cmd].databytes!=0xff) {
ili9488_send_cmd(ili_init_cmds[cmd].cmd);
ili9488_send_data(ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes&0x1F);
ili9488_send_cmd(drv, ili_init_cmds[cmd].cmd);
ili9488_send_data(drv, ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes&0x1F);
if (ili_init_cmds[cmd].databytes & 0x80) {
vTaskDelay(100 / portTICK_RATE_MS);
display_port_delay(drv, 100);
}
cmd++;
}
ili9488_set_orientation(CONFIG_LV_DISPLAY_ORIENTATION);
ili9488_set_orientation(drv, ILI9488_INITIAL_ORIENTATION);
}
// Flush function based on mvturnho repo
@ -117,7 +101,9 @@ void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
uint8_t *mybuf;
do {
mybuf = (uint8_t *) heap_caps_malloc(3 * size * sizeof(uint8_t), MALLOC_CAP_DMA);
if (mybuf == NULL) LV_LOG_WARN("Could not allocate enough DMA memory!");
if (mybuf == NULL) {
LV_LOG_WARN("Could not allocate enough DMA memory!");
}
} while (mybuf == NULL);
uint32_t LD = 0;
@ -150,17 +136,17 @@ void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
};
/*Column addresses*/
ili9488_send_cmd(ILI9488_CMD_COLUMN_ADDRESS_SET);
ili9488_send_data(xb, 4);
ili9488_send_cmd(drv, ILI9488_CMD_COLUMN_ADDRESS_SET);
ili9488_send_data(drv, xb, 4);
/*Page addresses*/
ili9488_send_cmd(ILI9488_CMD_PAGE_ADDRESS_SET);
ili9488_send_data(yb, 4);
ili9488_send_cmd(drv, ILI9488_CMD_PAGE_ADDRESS_SET);
ili9488_send_data(drv, yb, 4);
/*Memory write*/
ili9488_send_cmd(ILI9488_CMD_MEMORY_WRITE);
ili9488_send_cmd(drv, ILI9488_CMD_MEMORY_WRITE);
ili9488_send_color((void *) mybuf, size * 3);
ili9488_send_color(drv, (void *) mybuf, size * 3);
heap_caps_free(mybuf);
}
@ -168,29 +154,38 @@ void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * col
* STATIC FUNCTIONS
**********************/
static inline void set_cmd_mode(lv_disp_drv_t * drv)
{
display_port_gpio_dc(drv, 0);
}
static void ili9488_send_cmd(uint8_t cmd)
static inline void set_data_mode(lv_disp_drv_t * drv)
{
display_port_gpio_dc(drv, 1);
}
static void ili9488_send_cmd(lv_disp_drv_t * drv, uint8_t cmd)
{
disp_wait_for_pending_transactions();
gpio_set_level(ILI9488_DC, 0); /*Command mode*/
set_cmd_mode(drv);
disp_spi_send_data(&cmd, 1);
}
static void ili9488_send_data(void * data, uint16_t length)
static void ili9488_send_data(lv_disp_drv_t * drv, void * data, uint16_t length)
{
disp_wait_for_pending_transactions();
gpio_set_level(ILI9488_DC, 1); /*Data mode*/
set_data_mode(drv);
disp_spi_send_data(data, length);
}
static void ili9488_send_color(void * data, uint16_t length)
static void ili9488_send_color(lv_disp_drv_t * drv, void * data, uint16_t length)
{
disp_wait_for_pending_transactions();
gpio_set_level(ILI9488_DC, 1); /*Data mode*/
set_data_mode(drv);
disp_spi_send_colors(data, length);
}
static void ili9488_set_orientation(uint8_t orientation)
static void ili9488_set_orientation(lv_disp_drv_t * drv, uint8_t orientation)
{
assert(orientation < 4);
@ -204,6 +199,20 @@ static void ili9488_set_orientation(uint8_t orientation)
LV_LOG_INFO("0x36 command value: 0x%02X", data[orientation]);
ili9488_send_cmd(0x36);
ili9488_send_data((void *) &data[orientation], 1);
ili9488_send_cmd(drv, 0x36);
ili9488_send_data(drv, (void *) &data[orientation], 1);
}
/* Reset the display, if we don't have a reset pin we use software reset */
static void ili9488_reset(lv_disp_drv_t *drv)
{
#if defined(ILI9488_USE_RST)
display_port_gpio_rst(drv, 0);
display_port_delay(drv, 100);
display_port_gpio_rst(drv, 1);
display_port_delay(drv, 100);
#else
ili9341_send_cmd(drv, 0x01);
display_port_delay(drv, 5);
#endif
}

7
lvgl_tft/ili9488.h
View file

@ -20,14 +20,13 @@ extern "C" {
#else
#include "lvgl/lvgl.h"
#endif
#include "../lvgl_helpers.h"
#include "display_config.h"
/*********************
* DEFINES
*********************/
#define ILI9488_DC CONFIG_LV_DISP_PIN_DC
#define ILI9488_RST CONFIG_LV_DISP_PIN_RST
#define ILI9488_USE_RST CONFIG_LV_DISP_USE_RSTS
/*******************
* ILI9488 REGS
@ -144,7 +143,7 @@ typedef struct {
* GLOBAL PROTOTYPES
**********************/
void ili9488_init(void);
void ili9488_init(lv_disp_drv_t * drv);
void ili9488_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
/**********************