mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
270 lines
9.0 KiB
C
270 lines
9.0 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <sys/cdefs.h>
|
|
#include "sdkconfig.h"
|
|
#if CONFIG_LCD_ENABLE_DEBUG_LOG
|
|
// The local log level must be defined before including esp_log.h
|
|
// Set the maximum log level for this source file
|
|
#define LOG_LOCAL_LEVEL ESP_LOG_DEBUG
|
|
#endif
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/task.h"
|
|
#include "esp_lcd_panel_interface.h"
|
|
#include "esp_lcd_panel_io.h"
|
|
#include "esp_lcd_panel_vendor.h"
|
|
#include "esp_lcd_panel_ops.h"
|
|
#include "esp_lcd_panel_commands.h"
|
|
#include "driver/gpio.h"
|
|
#include "esp_log.h"
|
|
#include "esp_check.h"
|
|
|
|
static const char *TAG = "lcd_panel.st7789";
|
|
|
|
static esp_err_t panel_st7789_del(esp_lcd_panel_t *panel);
|
|
static esp_err_t panel_st7789_reset(esp_lcd_panel_t *panel);
|
|
static esp_err_t panel_st7789_init(esp_lcd_panel_t *panel);
|
|
static esp_err_t panel_st7789_draw_bitmap(esp_lcd_panel_t *panel, int x_start, int y_start, int x_end, int y_end, const void *color_data);
|
|
static esp_err_t panel_st7789_invert_color(esp_lcd_panel_t *panel, bool invert_color_data);
|
|
static esp_err_t panel_st7789_mirror(esp_lcd_panel_t *panel, bool mirror_x, bool mirror_y);
|
|
static esp_err_t panel_st7789_swap_xy(esp_lcd_panel_t *panel, bool swap_axes);
|
|
static esp_err_t panel_st7789_set_gap(esp_lcd_panel_t *panel, int x_gap, int y_gap);
|
|
static esp_err_t panel_st7789_disp_on_off(esp_lcd_panel_t *panel, bool off);
|
|
|
|
typedef struct {
|
|
esp_lcd_panel_t base;
|
|
esp_lcd_panel_io_handle_t io;
|
|
int reset_gpio_num;
|
|
bool reset_level;
|
|
int x_gap;
|
|
int y_gap;
|
|
unsigned int bits_per_pixel;
|
|
uint8_t madctl_val; // save current value of LCD_CMD_MADCTL register
|
|
uint8_t colmod_cal; // save surrent value of LCD_CMD_COLMOD register
|
|
} st7789_panel_t;
|
|
|
|
esp_err_t esp_lcd_new_panel_st7789(const esp_lcd_panel_io_handle_t io, const esp_lcd_panel_dev_config_t *panel_dev_config, esp_lcd_panel_handle_t *ret_panel)
|
|
{
|
|
#if CONFIG_LCD_ENABLE_DEBUG_LOG
|
|
esp_log_level_set(TAG, ESP_LOG_DEBUG);
|
|
#endif
|
|
esp_err_t ret = ESP_OK;
|
|
st7789_panel_t *st7789 = NULL;
|
|
ESP_GOTO_ON_FALSE(io && panel_dev_config && ret_panel, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument");
|
|
st7789 = calloc(1, sizeof(st7789_panel_t));
|
|
ESP_GOTO_ON_FALSE(st7789, ESP_ERR_NO_MEM, err, TAG, "no mem for st7789 panel");
|
|
|
|
if (panel_dev_config->reset_gpio_num >= 0) {
|
|
gpio_config_t io_conf = {
|
|
.mode = GPIO_MODE_OUTPUT,
|
|
.pin_bit_mask = 1ULL << panel_dev_config->reset_gpio_num,
|
|
};
|
|
ESP_GOTO_ON_ERROR(gpio_config(&io_conf), err, TAG, "configure GPIO for RST line failed");
|
|
}
|
|
|
|
switch (panel_dev_config->color_space) {
|
|
case ESP_LCD_COLOR_SPACE_RGB:
|
|
st7789->madctl_val = 0;
|
|
break;
|
|
case ESP_LCD_COLOR_SPACE_BGR:
|
|
st7789->madctl_val |= LCD_CMD_BGR_BIT;
|
|
break;
|
|
default:
|
|
ESP_GOTO_ON_FALSE(false, ESP_ERR_NOT_SUPPORTED, err, TAG, "unsupported color space");
|
|
break;
|
|
}
|
|
|
|
switch (panel_dev_config->bits_per_pixel) {
|
|
case 16:
|
|
st7789->colmod_cal = 0x55;
|
|
break;
|
|
case 18:
|
|
st7789->colmod_cal = 0x66;
|
|
break;
|
|
default:
|
|
ESP_GOTO_ON_FALSE(false, ESP_ERR_NOT_SUPPORTED, err, TAG, "unsupported pixel width");
|
|
break;
|
|
}
|
|
|
|
st7789->io = io;
|
|
st7789->bits_per_pixel = panel_dev_config->bits_per_pixel;
|
|
st7789->reset_gpio_num = panel_dev_config->reset_gpio_num;
|
|
st7789->reset_level = panel_dev_config->flags.reset_active_high;
|
|
st7789->base.del = panel_st7789_del;
|
|
st7789->base.reset = panel_st7789_reset;
|
|
st7789->base.init = panel_st7789_init;
|
|
st7789->base.draw_bitmap = panel_st7789_draw_bitmap;
|
|
st7789->base.invert_color = panel_st7789_invert_color;
|
|
st7789->base.set_gap = panel_st7789_set_gap;
|
|
st7789->base.mirror = panel_st7789_mirror;
|
|
st7789->base.swap_xy = panel_st7789_swap_xy;
|
|
st7789->base.disp_on_off = panel_st7789_disp_on_off;
|
|
*ret_panel = &(st7789->base);
|
|
ESP_LOGD(TAG, "new st7789 panel @%p", st7789);
|
|
|
|
return ESP_OK;
|
|
|
|
err:
|
|
if (st7789) {
|
|
if (panel_dev_config->reset_gpio_num >= 0) {
|
|
gpio_reset_pin(panel_dev_config->reset_gpio_num);
|
|
}
|
|
free(st7789);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_del(esp_lcd_panel_t *panel)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
|
|
if (st7789->reset_gpio_num >= 0) {
|
|
gpio_reset_pin(st7789->reset_gpio_num);
|
|
}
|
|
ESP_LOGD(TAG, "del st7789 panel @%p", st7789);
|
|
free(st7789);
|
|
return ESP_OK;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_reset(esp_lcd_panel_t *panel)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
esp_lcd_panel_io_handle_t io = st7789->io;
|
|
|
|
// perform hardware reset
|
|
if (st7789->reset_gpio_num >= 0) {
|
|
gpio_set_level(st7789->reset_gpio_num, st7789->reset_level);
|
|
vTaskDelay(pdMS_TO_TICKS(10));
|
|
gpio_set_level(st7789->reset_gpio_num, !st7789->reset_level);
|
|
vTaskDelay(pdMS_TO_TICKS(10));
|
|
} else { // perform software reset
|
|
esp_lcd_panel_io_tx_param(io, LCD_CMD_SWRESET, NULL, 0);
|
|
vTaskDelay(pdMS_TO_TICKS(20)); // spec, wait at least 5m before sending new command
|
|
}
|
|
|
|
return ESP_OK;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_init(esp_lcd_panel_t *panel)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
esp_lcd_panel_io_handle_t io = st7789->io;
|
|
// LCD goes into sleep mode and display will be turned off after power on reset, exit sleep mode first
|
|
esp_lcd_panel_io_tx_param(io, LCD_CMD_SLPOUT, NULL, 0);
|
|
vTaskDelay(pdMS_TO_TICKS(100));
|
|
esp_lcd_panel_io_tx_param(io, LCD_CMD_MADCTL, (uint8_t[]) {
|
|
st7789->madctl_val,
|
|
}, 1);
|
|
esp_lcd_panel_io_tx_param(io, LCD_CMD_COLMOD, (uint8_t[]) {
|
|
st7789->colmod_cal,
|
|
}, 1);
|
|
|
|
return ESP_OK;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_draw_bitmap(esp_lcd_panel_t *panel, int x_start, int y_start, int x_end, int y_end, const void *color_data)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
assert((x_start < x_end) && (y_start < y_end) && "start position must be smaller than end position");
|
|
esp_lcd_panel_io_handle_t io = st7789->io;
|
|
|
|
x_start += st7789->x_gap;
|
|
x_end += st7789->x_gap;
|
|
y_start += st7789->y_gap;
|
|
y_end += st7789->y_gap;
|
|
|
|
// define an area of frame memory where MCU can access
|
|
esp_lcd_panel_io_tx_param(io, LCD_CMD_CASET, (uint8_t[]) {
|
|
(x_start >> 8) & 0xFF,
|
|
x_start & 0xFF,
|
|
((x_end - 1) >> 8) & 0xFF,
|
|
(x_end - 1) & 0xFF,
|
|
}, 4);
|
|
esp_lcd_panel_io_tx_param(io, LCD_CMD_RASET, (uint8_t[]) {
|
|
(y_start >> 8) & 0xFF,
|
|
y_start & 0xFF,
|
|
((y_end - 1) >> 8) & 0xFF,
|
|
(y_end - 1) & 0xFF,
|
|
}, 4);
|
|
// transfer frame buffer
|
|
size_t len = (x_end - x_start) * (y_end - y_start) * st7789->bits_per_pixel / 8;
|
|
esp_lcd_panel_io_tx_color(io, LCD_CMD_RAMWR, color_data, len);
|
|
|
|
return ESP_OK;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_invert_color(esp_lcd_panel_t *panel, bool invert_color_data)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
esp_lcd_panel_io_handle_t io = st7789->io;
|
|
int command = 0;
|
|
if (invert_color_data) {
|
|
command = LCD_CMD_INVON;
|
|
} else {
|
|
command = LCD_CMD_INVOFF;
|
|
}
|
|
esp_lcd_panel_io_tx_param(io, command, NULL, 0);
|
|
return ESP_OK;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_mirror(esp_lcd_panel_t *panel, bool mirror_x, bool mirror_y)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
esp_lcd_panel_io_handle_t io = st7789->io;
|
|
if (mirror_x) {
|
|
st7789->madctl_val |= LCD_CMD_MX_BIT;
|
|
} else {
|
|
st7789->madctl_val &= ~LCD_CMD_MX_BIT;
|
|
}
|
|
if (mirror_y) {
|
|
st7789->madctl_val |= LCD_CMD_MY_BIT;
|
|
} else {
|
|
st7789->madctl_val &= ~LCD_CMD_MY_BIT;
|
|
}
|
|
esp_lcd_panel_io_tx_param(io, LCD_CMD_MADCTL, (uint8_t[]) {
|
|
st7789->madctl_val
|
|
}, 1);
|
|
return ESP_OK;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_swap_xy(esp_lcd_panel_t *panel, bool swap_axes)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
esp_lcd_panel_io_handle_t io = st7789->io;
|
|
if (swap_axes) {
|
|
st7789->madctl_val |= LCD_CMD_MV_BIT;
|
|
} else {
|
|
st7789->madctl_val &= ~LCD_CMD_MV_BIT;
|
|
}
|
|
esp_lcd_panel_io_tx_param(io, LCD_CMD_MADCTL, (uint8_t[]) {
|
|
st7789->madctl_val
|
|
}, 1);
|
|
return ESP_OK;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_set_gap(esp_lcd_panel_t *panel, int x_gap, int y_gap)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
st7789->x_gap = x_gap;
|
|
st7789->y_gap = y_gap;
|
|
return ESP_OK;
|
|
}
|
|
|
|
static esp_err_t panel_st7789_disp_on_off(esp_lcd_panel_t *panel, bool on_off)
|
|
{
|
|
st7789_panel_t *st7789 = __containerof(panel, st7789_panel_t, base);
|
|
esp_lcd_panel_io_handle_t io = st7789->io;
|
|
int command = 0;
|
|
if (on_off) {
|
|
command = LCD_CMD_DISPON;
|
|
} else {
|
|
command = LCD_CMD_DISPOFF;
|
|
}
|
|
esp_lcd_panel_io_tx_param(io, command, NULL, 0);
|
|
return ESP_OK;
|
|
}
|