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-
- #include "spidriver/spi_master_lobo.h"
- #include "epaper/EPD.h"
- #include <stdlib.h>
- #include "esp_system.h"
- #include "driver/gpio.h"
- #include "esp_system.h"
- #include "esp_heap_alloc_caps.h"
- #include "esp_log.h"
- #include "config.h"
- #include "display.h"
-
- void display_init()
- {
- // drawing buffer
- disp_buffer = (uint8_t*)pvPortMallocCaps(EPD_DISPLAY_WIDTH * (EPD_DISPLAY_HEIGHT/8), MALLOC_CAP_DMA);
- assert(disp_buffer);
- drawBuff = disp_buffer;
-
- // gray-scale drawing buffer
- gs_disp_buffer = (uint8_t*)pvPortMallocCaps(EPD_DISPLAY_WIDTH * EPD_DISPLAY_HEIGHT, MALLOC_CAP_DMA);
- assert(gs_disp_buffer);
- gs_drawBuff = gs_disp_buffer;
- }
-
-
- spi_lobo_device_interface_config_t devcfg;
- spi_lobo_bus_config_t buscfg;
- void spi_init()
- {
- gpio_set_direction(DC_Pin, GPIO_MODE_OUTPUT);
- gpio_set_level(DC_Pin, 1);
- gpio_set_direction(RST_Pin, GPIO_MODE_OUTPUT);
- gpio_set_level(RST_Pin, 0);
- gpio_set_direction(BUSY_Pin, GPIO_MODE_INPUT);
- gpio_set_pull_mode(BUSY_Pin, GPIO_PULLUP_ONLY);
-
- #ifdef POWER_Pin
- gpio_set_direction(POWER_Pin, GPIO_MODE_OUTPUT);
- gpio_set_level(POWER_Pin, 1);
- #endif
-
- buscfg.miso_io_num = -1; // set SPI MISO pin
- buscfg.mosi_io_num = MOSI_Pin; // set SPI MOSI pin
- buscfg.sclk_io_num = SCK_Pin; // set SPI CLK pin
- buscfg.quadwp_io_num=-1;
- buscfg.quadhd_io_num=-1;
- buscfg.max_transfer_sz = 5*1024; // max transfer size is 4736 bytes
-
- devcfg.clock_speed_hz=40000000; // SPI clock is 40 MHz
- devcfg.mode=0; // SPI mode 0
- devcfg.spics_io_num=-1; // we will use external CS pin
- devcfg.spics_ext_io_num = CS_Pin; // external CS pin
- devcfg.flags=SPI_DEVICE_HALFDUPLEX; // ALWAYS SET to HALF DUPLEX MODE for display spi !!
- }
-
- void display_connect()
- {
- int ret;
-
- ret=spi_lobo_bus_add_device(SPI_BUS, &buscfg, &devcfg, &disp_spi);
- assert(ret==ESP_OK);
- printf("SPI: display device added to spi bus\r\n");
-
- ret = spi_lobo_device_select(disp_spi, 1);
- assert(ret==ESP_OK);
- ret = spi_lobo_device_deselect(disp_spi);
- assert(ret==ESP_OK);
-
- printf("SPI: attached display device, speed=%u\r\n", spi_lobo_get_speed(disp_spi));
- printf("SPI: bus uses native pins: %s\r\n", spi_lobo_uses_native_pins(disp_spi) ? "true" : "false");
- }
-
- void display_splash_screen()
- {
- EPD_DisplayClearPart();
- EPD_fillScreen(0);
- EPD_UpdateScreen();
-
- EPD_setFont(COMIC24_FONT, NULL);
- EPD_print("LilyBook", 30, 30);
- EPD_setFont(DEFAULT_FONT, NULL);
- EPD_print("Version:", 30, 70);
- EPD_print(APP_VERSION, 100, 70);
- EPD_UpdateScreen();
- }
-
- void display_clear()
- {
- EPD_fillScreen(_bg);
- }
-
- void display_refresh()
- {
- EPD_DisplayClearPart();
- EPD_fillScreen(_bg);
- }
-
- void display_update()
- {
- EPD_UpdateScreen();
- }
-
- extern void EPD_wake();
- void display_wake()
- {
- EPD_wake();
- }
-
- void display_sleep()
- {
- EPD_PowerOff();
- }
-
- void display_alert(char* text)
- {
- EPD_clearStringRect(CENTER, CENTER, text);
- EPD_print(text, CENTER, CENTER);
- EPD_frameStringRect(CENTER, CENTER, text);
- EPD_UpdateScreen();
- }
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