esp-idf/components/esp_lcd/test/test_spi_lcd_panel.c

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#include <stdio.h>
#include <string.h>
#include "sdkconfig.h"
#include "unity.h"
#include "test_utils.h"
#include "driver/spi_master.h"
#include "driver/gpio.h"
#include "esp_lcd_panel_io.h"
#include "esp_lcd_panel_vendor.h"
#include "esp_lcd_panel_ops.h"
#include "esp_system.h"
#include "soc/soc_caps.h"
#include "test_spi_board.h"
#define TEST_SPI_HOST_ID (1)
#define TEST_LCD_PIXEL_CLOCK_HZ (20 * 1000 * 1000) // 20MHz
typedef bool (*trans_done_callback_t)(esp_lcd_panel_io_handle_t, void *, void *);
static void lcd_initialize_spi(esp_lcd_panel_io_handle_t *io_handle, trans_done_callback_t on_color_trans_done, void *user_data, int cmd_bits, int param_bits, bool oct_mode)
{
gpio_config_t bk_gpio_config = {
.mode = GPIO_MODE_OUTPUT,
.pin_bit_mask = 1ULL << TEST_LCD_BK_LIGHT_GPIO
};
TEST_ESP_OK(gpio_config(&bk_gpio_config));
spi_bus_config_t buscfg = {
.sclk_io_num = TEST_LCD_PCLK_GPIO,
.mosi_io_num = TEST_LCD_DATA0_GPIO,
.miso_io_num = -1,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
.max_transfer_sz = TEST_LCD_H_RES * TEST_LCD_V_RES * sizeof(uint16_t)
};
if (oct_mode) {
buscfg.data1_io_num = TEST_LCD_DATA1_GPIO;
buscfg.data2_io_num = TEST_LCD_DATA2_GPIO;
buscfg.data3_io_num = TEST_LCD_DATA3_GPIO;
buscfg.data4_io_num = TEST_LCD_DATA4_GPIO;
buscfg.data5_io_num = TEST_LCD_DATA5_GPIO;
buscfg.data6_io_num = TEST_LCD_DATA6_GPIO;
buscfg.data7_io_num = TEST_LCD_DATA7_GPIO;
buscfg.flags = SPICOMMON_BUSFLAG_OCTAL;
}
TEST_ESP_OK(spi_bus_initialize(TEST_SPI_HOST_ID, &buscfg, SPI_DMA_CH_AUTO));
esp_lcd_panel_io_spi_config_t io_config = {
.dc_gpio_num = TEST_LCD_DC_GPIO,
.cs_gpio_num = TEST_LCD_CS_GPIO,
.pclk_hz = TEST_LCD_PIXEL_CLOCK_HZ,
.spi_mode = 0,
.trans_queue_depth = 10,
.lcd_cmd_bits = cmd_bits,
.lcd_param_bits = param_bits,
.on_color_trans_done = on_color_trans_done,
.user_data = user_data
};
if (oct_mode) {
io_config.flags.octal_mode = 1;
io_config.spi_mode = 3;
}
TEST_ESP_OK(esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)TEST_SPI_HOST_ID, &io_config, io_handle));
}
static void lcd_panel_test(esp_lcd_panel_io_handle_t io_handle, esp_lcd_panel_handle_t panel_handle)
{
#define TEST_IMG_SIZE (100 * 100 * sizeof(uint16_t))
uint8_t *img = heap_caps_malloc(TEST_IMG_SIZE, MALLOC_CAP_DMA);
TEST_ASSERT_NOT_NULL(img);
// turn off backlight
gpio_set_level(TEST_LCD_BK_LIGHT_GPIO, 0);
esp_lcd_panel_reset(panel_handle);
esp_lcd_panel_init(panel_handle);
esp_lcd_panel_invert_color(panel_handle, true);
// the gap is LCD panel specific, even panels with the same driver IC, can have different gap value
esp_lcd_panel_set_gap(panel_handle, 0, 20);
// turn on backlight
gpio_set_level(TEST_LCD_BK_LIGHT_GPIO, 1);
for (int i = 0; i < 200; i++) {
uint8_t color_byte = esp_random() & 0xFF;
int x_start = esp_random() % (TEST_LCD_H_RES - 100);
int y_start = esp_random() % (TEST_LCD_V_RES - 100);
memset(img, color_byte, TEST_IMG_SIZE);
esp_lcd_panel_draw_bitmap(panel_handle, x_start, y_start, x_start + 100, y_start + 100, img);
}
// turn off screen
esp_lcd_panel_disp_off(panel_handle, true);
TEST_ESP_OK(esp_lcd_panel_del(panel_handle));
TEST_ESP_OK(esp_lcd_panel_io_del(io_handle));
TEST_ESP_OK(spi_bus_free(TEST_SPI_HOST_ID));
TEST_ESP_OK(gpio_reset_pin(TEST_LCD_BK_LIGHT_GPIO));
free(img);
#undef TEST_IMG_SIZE
}
TEST_CASE("lcd panel spi io test", "[lcd]")
{
esp_lcd_panel_io_handle_t io_handle = NULL;
lcd_initialize_spi(&io_handle, NULL, NULL, 8, 8, false);
esp_lcd_panel_io_tx_param(io_handle, 0x1A, NULL, 0);
esp_lcd_panel_io_tx_param(io_handle, 0x1B, (uint8_t[]) {
0x11, 0x22, 0x33
}, 3);
esp_lcd_panel_io_tx_param(io_handle, 0x1C, NULL, 0);
TEST_ESP_OK(esp_lcd_panel_io_del(io_handle));
TEST_ESP_OK(spi_bus_free(TEST_SPI_HOST_ID));
lcd_initialize_spi(&io_handle, NULL, NULL, 16, 16, false);
esp_lcd_panel_io_tx_param(io_handle, 0x1A01, NULL, 0);
esp_lcd_panel_io_tx_param(io_handle, 0x1B02, (uint16_t[]) {
0x11, 0x22, 0x33
}, 6);
esp_lcd_panel_io_tx_param(io_handle, 0x1C03, NULL, 0);
TEST_ESP_OK(esp_lcd_panel_io_del(io_handle));
TEST_ESP_OK(spi_bus_free(TEST_SPI_HOST_ID));
#if SOC_SPI_SUPPORT_OCT
lcd_initialize_spi(&io_handle, NULL, NULL, 8, 8, true);
esp_lcd_panel_io_tx_param(io_handle, 0x1A, NULL, 0);
esp_lcd_panel_io_tx_param(io_handle, 0x1B, (uint8_t[]) {
0x11, 0x22, 0x33
}, 3);
esp_lcd_panel_io_tx_param(io_handle, 0x1C, NULL, 0);
TEST_ESP_OK(esp_lcd_panel_io_del(io_handle));
TEST_ESP_OK(spi_bus_free(TEST_SPI_HOST_ID));
lcd_initialize_spi(&io_handle, NULL, NULL, 16, 16, true);
esp_lcd_panel_io_tx_param(io_handle, 0x1A01, NULL, 0);
esp_lcd_panel_io_tx_param(io_handle, 0x1B02, (uint16_t[]) {
0x11, 0x22, 0x33
}, 6);
esp_lcd_panel_io_tx_param(io_handle, 0x1C03, NULL, 0);
TEST_ESP_OK(esp_lcd_panel_io_del(io_handle));
TEST_ESP_OK(spi_bus_free(TEST_SPI_HOST_ID));
#endif // SOC_SPI_SUPPORT_OCT
}
#if SOC_SPI_SUPPORT_OCT
TEST_CASE("lcd panel with 8-line spi interface (st7789)", "[lcd]")
{
esp_lcd_panel_io_handle_t io_handle = NULL;
esp_lcd_panel_handle_t panel_handle = NULL;
lcd_initialize_spi(&io_handle, NULL, NULL, 8, 8, true);
esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = TEST_LCD_RST_GPIO,
.color_space = ESP_LCD_COLOR_SPACE_RGB,
.bits_per_pixel = 16,
};
TEST_ESP_OK(esp_lcd_new_panel_st7789(io_handle, &panel_config, &panel_handle));
lcd_panel_test(io_handle, panel_handle);
}
TEST_CASE("lcd panel with 8-line spi interface (nt35510)", "[lcd]")
{
esp_lcd_panel_io_handle_t io_handle = NULL;
esp_lcd_panel_handle_t panel_handle = NULL;
lcd_initialize_spi(&io_handle, NULL, NULL, 16, 16, true);
esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = TEST_LCD_RST_GPIO,
.color_space = ESP_LCD_COLOR_SPACE_RGB,
.bits_per_pixel = 16,
};
TEST_ESP_OK(esp_lcd_new_panel_nt35510(io_handle, &panel_config, &panel_handle));
lcd_panel_test(io_handle, panel_handle);
}
#endif // SOC_SPI_SUPPORT_OCT
TEST_CASE("lcd panel with 1-line spi interface (st7789)", "[lcd]")
{
esp_lcd_panel_io_handle_t io_handle = NULL;
esp_lcd_panel_handle_t panel_handle = NULL;
lcd_initialize_spi(&io_handle, NULL, NULL, 8, 8, false);
esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = TEST_LCD_RST_GPIO,
.color_space = ESP_LCD_COLOR_SPACE_RGB,
.bits_per_pixel = 16,
};
TEST_ESP_OK(esp_lcd_new_panel_st7789(io_handle, &panel_config, &panel_handle));
lcd_panel_test(io_handle, panel_handle);
}
// The following test shows a porting example of LVGL GUI library
// To run the LVGL tests, you need to clone the LVGL library into components directory firstly
#if CONFIG_LV_USE_USER_DATA
#include "test_lvgl_port.h"
static bool notify_lvgl_ready_to_flush(esp_lcd_panel_io_handle_t panel_io, void *user_data, void *event_data)
{
lv_disp_t *disp = *(lv_disp_t **)user_data;
lv_disp_flush_ready(&disp->driver);
return false;
}
static void lvgl_gui_test(esp_lcd_panel_io_handle_t io_handle, esp_lcd_panel_handle_t panel_handle, lv_disp_t **disp)
{
// initialize LVGL graphics library
lv_init();
// turn off backlight
gpio_set_level(TEST_LCD_BK_LIGHT_GPIO, 0);
esp_lcd_panel_reset(panel_handle);
esp_lcd_panel_init(panel_handle);
esp_lcd_panel_invert_color(panel_handle, true);
// the gap is LCD panel specific, even panels with the same driver IC, can have different gap value
esp_lcd_panel_set_gap(panel_handle, 0, 20);
// turn on backlight
gpio_set_level(TEST_LCD_BK_LIGHT_GPIO, 1);
test_lvgl_task_loop(panel_handle, TEST_LCD_H_RES, TEST_LCD_V_RES, disp);
}
#if SOC_SPI_SUPPORT_OCT
TEST_CASE("lvgl gui with 8-line spi interface (st7789)", "[lcd][lvgl][ignore]")
{
lv_disp_t *disp = NULL;
esp_lcd_panel_io_handle_t io_handle = NULL;
esp_lcd_panel_handle_t panel_handle = NULL;
lcd_initialize_spi(&io_handle, notify_lvgl_ready_to_flush, &disp, 8, 8, true);
esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = TEST_LCD_RST_GPIO,
.color_space = ESP_LCD_COLOR_SPACE_RGB,
.bits_per_pixel = 16,
};
TEST_ESP_OK(esp_lcd_new_panel_st7789(io_handle, &panel_config, &panel_handle));
lvgl_gui_test(io_handle, panel_handle, &disp);
}
TEST_CASE("lvgl gui with 8-line spi interface (nt35510)", "[lcd][lvgl][ignore]")
{
lv_disp_t *disp = NULL;
esp_lcd_panel_io_handle_t io_handle = NULL;
esp_lcd_panel_handle_t panel_handle = NULL;
lcd_initialize_spi(&io_handle, notify_lvgl_ready_to_flush, &disp, 16, 16, true);
esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = TEST_LCD_RST_GPIO,
.color_space = ESP_LCD_COLOR_SPACE_RGB,
.bits_per_pixel = 16,
};
TEST_ESP_OK(esp_lcd_new_panel_nt35510(io_handle, &panel_config, &panel_handle));
lvgl_gui_test(io_handle, panel_handle, &disp);
}
#endif // SOC_SPI_SUPPORT_OCT
TEST_CASE("lvgl gui with 1-line spi interface (st7789)", "[lcd][lvgl][ignore]")
{
lv_disp_t *disp = NULL;
esp_lcd_panel_io_handle_t io_handle = NULL;
esp_lcd_panel_handle_t panel_handle = NULL;
lcd_initialize_spi(&io_handle, notify_lvgl_ready_to_flush, &disp, 8, 8, false);
esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = TEST_LCD_RST_GPIO,
.color_space = ESP_LCD_COLOR_SPACE_RGB,
.bits_per_pixel = 16,
};
TEST_ESP_OK(esp_lcd_new_panel_st7789(io_handle, &panel_config, &panel_handle));
lvgl_gui_test(io_handle, panel_handle, &disp);
}
#endif // CONFIG_LV_USE_USER_DATA