mirror of
https://github.com/Valeh2012/PersonalVotingMachine
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first commit
This commit is contained in:
valeh
11
extended-setup/components/drv/component.mk
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11
extended-setup/components/drv/component.mk
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# drv
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CFLAGS += -DLV_CONF_INCLUDE_SIMPLE
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CFLAGS += -DILI9341_BCKL_ACTIVE_LVL=0
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# Set to 1 if your display have touch support, otherwise set it to 0.
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CFLAGS += -DTOUCH_SUPPORT=1
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COMPONENT_SRCDIRS := .
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COMPONENT_ADD_INCLUDEDIRS := $(COMPONENT_SRCDIRS) .. ../
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124
extended-setup/components/drv/disp_spi.c
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124
extended-setup/components/drv/disp_spi.c
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/**
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* @file disp_spi.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 "disp_spi.h"
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#include "esp_system.h"
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#include "driver/gpio.h"
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#include "driver/spi_master.h"
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#include <string.h>
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#include <freertos/FreeRTOS.h>
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#include <freertos/semphr.h>
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#include "freertos/task.h"
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#include "lvgl/lvgl.h"
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#include "ili9341.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static void IRAM_ATTR spi_ready (spi_transaction_t *trans);
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/**********************
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* STATIC VARIABLES
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**********************/
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static spi_device_handle_t spi;
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static volatile bool spi_trans_in_progress;
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static volatile bool spi_color_sent;
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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 disp_spi_init(void)
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{
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esp_err_t ret;
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spi_bus_config_t buscfg={
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.miso_io_num=-1,
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.mosi_io_num=DISP_SPI_MOSI,
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.sclk_io_num=DISP_SPI_CLK,
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.quadwp_io_num=-1,
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.quadhd_io_num=-1,
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.max_transfer_sz = DISP_BUF_SIZE * 2,
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};
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spi_device_interface_config_t devcfg={
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.clock_speed_hz=80*1000*1000, //Clock out at 40 MHz
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.mode=0, //SPI mode 0
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.spics_io_num=DISP_SPI_CS, //CS pin
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.queue_size=1,
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.pre_cb=NULL,
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.post_cb=spi_ready,
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.flags = SPI_DEVICE_HALFDUPLEX
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};
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//Initialize the SPI bus
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ret=spi_bus_initialize(HSPI_HOST, &buscfg, 1);
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assert(ret==ESP_OK);
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//Attach the LCD to the SPI bus
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ret=spi_bus_add_device(HSPI_HOST, &devcfg, &spi);
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assert(ret==ESP_OK);
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}
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void disp_spi_send_data(uint8_t * data, uint16_t length)
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{
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if (length == 0) return; //no need to send anything
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while(spi_trans_in_progress);
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spi_transaction_t t = {
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.length = length * 8, // transaction length is in bits
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.tx_buffer = data
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};
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spi_trans_in_progress = true;
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spi_color_sent = false; //Mark the "lv_flush_ready" NOT needs to be called in "spi_ready"
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spi_device_queue_trans(spi, &t, portMAX_DELAY);
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}
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void disp_spi_send_colors(uint8_t * data, uint16_t length)
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{
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if (length == 0) return; //no need to send anything
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while(spi_trans_in_progress);
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spi_transaction_t t = {
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.length = length * 8, // transaction length is in bits
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.tx_buffer = data
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};
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spi_trans_in_progress = true;
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spi_color_sent = true; //Mark the "lv_flush_ready" needs to be called in "spi_ready"
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spi_device_queue_trans(spi, &t, portMAX_DELAY);
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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static void IRAM_ATTR spi_ready (spi_transaction_t *trans)
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{
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spi_trans_in_progress = false;
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lv_disp_t * disp = lv_refr_get_disp_refreshing();
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if(spi_color_sent) lv_disp_flush_ready(&disp->driver);
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}
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47
extended-setup/components/drv/disp_spi.h
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47
extended-setup/components/drv/disp_spi.h
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/**
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* @file disp_spi.h
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*
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*/
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#ifndef DISP_SPI_H
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#define DISP_SPI_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#include <stdint.h>
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/*********************
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* DEFINES
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*********************/
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#define DISP_SPI_MOSI CONFIG_OVC_PIN_MOSI
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#define DISP_SPI_CLK CONFIG_OVC_PIN_CLK
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#define DISP_SPI_CS CONFIG_OVC_PIN_CS
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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void disp_spi_init(void);
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void disp_spi_send_data(uint8_t * data, uint16_t length);
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void disp_spi_send_colors(uint8_t * data, uint16_t length);
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/**********************
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* MACROS
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**********************/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*DISP_SPI_H*/
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170
extended-setup/components/drv/ili9341.c
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170
extended-setup/components/drv/ili9341.c
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/**
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* @file ili9341.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 "ili9341.h"
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#include "disp_spi.h"
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#include "driver/gpio.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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/**********************
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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 ili9341_send_cmd(uint8_t cmd);
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static void ili9341_send_data(void * data, uint16_t length);
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static void ili9341_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 ili9341_init(void)
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{
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lcd_init_cmd_t ili_init_cmds[]={
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{0xCF, {0x00, 0x83, 0X30}, 3},
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{0xED, {0x64, 0x03, 0X12, 0X81}, 4},
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{0xE8, {0x85, 0x01, 0x79}, 3},
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{0xCB, {0x39, 0x2C, 0x00, 0x34, 0x02}, 5},
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{0xF7, {0x20}, 1},
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{0xEA, {0x00, 0x00}, 2},
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{0xC0, {0x26}, 1}, /*Power control*/
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{0xC1, {0x11}, 1}, /*Power control */
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{0xC5, {0x35, 0x3E}, 2}, /*VCOM control*/
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{0xC7, {0xBE}, 1}, /*VCOM control*/
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{0x36, {0x28}, 1}, /*Memory Access Control*/
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{0x3A, {0x55}, 1}, /*Pixel Format Set*/
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{0xB1, {0x00, 0x1B}, 2},
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{0xF2, {0x08}, 1},
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{0x26, {0x01}, 1},
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{0xE0, {0x1F, 0x1A, 0x18, 0x0A, 0x0F, 0x06, 0x45, 0X87, 0x32, 0x0A, 0x07, 0x02, 0x07, 0x05, 0x00}, 15},
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{0XE1, {0x00, 0x25, 0x27, 0x05, 0x10, 0x09, 0x3A, 0x78, 0x4D, 0x05, 0x18, 0x0D, 0x38, 0x3A, 0x1F}, 15},
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{0x2A, {0x00, 0x00, 0x00, 0xEF}, 4},
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{0x2B, {0x00, 0x00, 0x01, 0x3f}, 4},
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{0x2C, {0}, 0},
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{0xB7, {0x07}, 1},
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{0xB6, {0x0A, 0x82, 0x27, 0x00}, 4},
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{0x11, {0}, 0x80},
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{0x29, {0}, 0x80},
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{0, {0}, 0xff},
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};
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//Initialize non-SPI GPIOs
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gpio_set_direction(ILI9341_DC, GPIO_MODE_OUTPUT);
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gpio_set_direction(ILI9341_RST, GPIO_MODE_OUTPUT);
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// gpio_set_direction(ILI9341_BCKL, GPIO_MODE_OUTPUT);
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//Reset the display
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gpio_set_level(ILI9341_RST, 0);
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vTaskDelay(100 / portTICK_RATE_MS);
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gpio_set_level(ILI9341_RST, 1);
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vTaskDelay(100 / portTICK_RATE_MS);
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printf("ILI9341 initialization.\n");
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//Send all the commands
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uint16_t cmd = 0;
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while (ili_init_cmds[cmd].databytes!=0xff) {
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ili9341_send_cmd(ili_init_cmds[cmd].cmd);
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ili9341_send_data(ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes&0x1F);
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if (ili_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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///Enable backlight
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printf("Enable backlight.\n");
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gpio_set_level(ILI9341_BCKL, ILI9341_BCKL_ACTIVE_LVL);
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// Change screen rotation to Portrait.
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uint8_t data[] = {0x88};
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// this same command also sets rotation (portrait/landscape) and inverts colors.
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// https://gist.github.com/motters/38a26a66020f674b6389063932048e4c#file-ili9844_defines-h-L24
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ili9341_send_cmd(0x36);
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ili9341_send_data(&data, 1);
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}
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void ili9341_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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ili9341_send_cmd(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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ili9341_send_data(data, 4);
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/*Page addresses*/
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ili9341_send_cmd(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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ili9341_send_data(data, 4);
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/*Memory write*/
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ili9341_send_cmd(0x2C);
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uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
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ili9341_send_color((void*)color_map, size * 2);
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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static void ili9341_send_cmd(uint8_t cmd)
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{
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gpio_set_level(ILI9341_DC, 0); /*Command mode*/
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disp_spi_send_data(&cmd, 1);
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}
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static void ili9341_send_data(void * data, uint16_t length)
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{
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gpio_set_level(ILI9341_DC, 1); /*Data mode*/
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disp_spi_send_data(data, length);
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}
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static void ili9341_send_color(void * data, uint16_t length)
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{
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gpio_set_level(ILI9341_DC, 1); /*Data mode*/
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disp_spi_send_colors(data, length);
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}
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49
extended-setup/components/drv/ili9341.h
Normal file
49
extended-setup/components/drv/ili9341.h
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@@ -0,0 +1,49 @@
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/**
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* @file lv_templ.h
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*
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*/
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#ifndef ILI9341_H
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#define ILI9341_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#include "lvgl/lvgl.h"
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/*********************
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* DEFINES
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*********************/
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#define DISP_BUF_SIZE (LV_HOR_RES_MAX * 40)
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#define ILI9341_DC CONFIG_OVC_PIN_DC
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#define ILI9341_RST CONFIG_OVC_PIN_RESET
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#define ILI9341_BCKL CONFIG_OVC_PIN_LITE
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// if text/images are backwards, try setting this to 1
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#define ILI9341_INVERT_DISPLAY 1
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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void ili9341_init(void);
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void ili9341_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
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/**********************
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* MACROS
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**********************/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*ILI9341_H*/
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Block a user