Port waveshare code to esp-idf. Still not working, issue with 5V display config. Switching to pico
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/*****************************************************************************
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* | File : DEV_Config.c
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* | Author : Waveshare team
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* | Function : Hardware underlying interface
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* | Info :
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*----------------
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* | This version: V3.0
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* | Date : 2019-07-31
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* | Info :
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of theex Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#include "config.h"
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#include "DEV_Config.h"
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#include "driver/gpio.h"
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#include "driver/spi_master.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include <string.h>
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#define SPI_PORT SPI2_HOST
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// /**
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// * GPIO
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// **/
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// int EPD_RST_PIN;
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// int EPD_DC_PIN;
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// int EPD_CS_PIN;
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// int EPD_BUSY_PIN;
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// int EPD_CLK_PIN;
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// int EPD_MOSI_PIN;
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spi_device_handle_t spi_device;
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/**
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* GPIO read and write
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**/
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void DEV_Digital_Write(UWORD Pin, UBYTE Value)
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{
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gpio_set_level(Pin, Value);
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}
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UBYTE DEV_Digital_Read(UWORD Pin)
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{
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return gpio_get_level(Pin);
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}
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/**
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* SPI
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**/
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void DEV_SPI_WriteByte(uint8_t Value)
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{
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spi_transaction_t trans;
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memset(&trans, 0, sizeof(spi_transaction_t));
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trans.flags = SPI_TRANS_USE_TXDATA;
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trans.length = 8;
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trans.tx_data[0] = Value;
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spi_device_transmit(spi_device, &trans);
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}
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void DEV_SPI_Write_nByte(uint8_t *pData, uint32_t Len)
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{
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if (Len == 0) return;
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spi_transaction_t trans;
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memset(&trans, 0, sizeof(spi_transaction_t));
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trans.length = 8*Len;
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trans.tx_buffer = pData;
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spi_device_transmit(spi_device, &trans);
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}
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/**
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* GPIO Mode
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**/
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void DEV_GPIO_Mode(UWORD Pin, UWORD Mode)
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{
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gpio_config_t io_conf = {
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.pin_bit_mask = (1ULL << Pin),
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.intr_type = GPIO_INTR_DISABLE,
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.pull_down_en = GPIO_PULLDOWN_DISABLE,
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.pull_up_en = GPIO_PULLUP_DISABLE
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};
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if(Mode == 0 || Mode == GPIO_MODE_INPUT) {
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io_conf.mode = GPIO_MODE_INPUT;
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io_conf.pull_up_en = GPIO_PULLUP_ENABLE;
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} else {
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io_conf.mode = GPIO_MODE_OUTPUT;
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}
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gpio_config(&io_conf);
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}
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/**
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* delay x ms
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**/
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void DEV_Delay_ms(UDOUBLE xms)
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{
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vTaskDelay(pdMS_TO_TICKS(xms));
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}
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void DEV_GPIO_Init(void)
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{
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// EPD_RST_PIN = 12;
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// EPD_DC_PIN = 8;
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// EPD_BUSY_PIN = 13;
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// EPD_CS_PIN = 9;
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// EPD_CLK_PIN = 10;
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// EPD_MOSI_PIN = 11;
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DEV_GPIO_Mode(EPD_RST_PIN, 1);
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DEV_GPIO_Mode(EPD_DC_PIN, 1);
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DEV_GPIO_Mode(EPD_CS_PIN, 1);
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DEV_GPIO_Mode(EPD_BUSY_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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}
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/******************************************************************************
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function: Module Initialize, the library and initialize the pins, SPI protocol
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parameter:
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Info:
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******************************************************************************/
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UBYTE DEV_Module_Init(void)
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{
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// GPIO Config
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DEV_GPIO_Init();
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spi_bus_config_t buscfg = {
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.mosi_io_num = SPI_MOSI,
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.miso_io_num = -1,
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.sclk_io_num = 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 = 4096
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};
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esp_err_t ret = spi_bus_initialize(SPI_PORT, &buscfg, 1);
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ESP_ERROR_CHECK(ret);
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spi_device_interface_config_t devcfg = {
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.clock_speed_hz = 4000 * 1000,
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.mode = 0,
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.queue_size = 7,
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.spics_io_num = -1
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};
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// Attach the device configuration to the initialized bus
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ret = spi_bus_add_device(SPI_PORT, &devcfg, &spi_device);
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ESP_ERROR_CHECK(ret);
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printf("DEV_Module_Init OK \r\n");
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return 0;
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}
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void DEV_GPIO_Init_1(void)
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{
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//spi_deinit(SPI_PORT);
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//gpio_set_function(EPD_CLK_PIN, GPIO_FUNC_SPI);
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//gpio_set_function(EPD_MOSI_PIN, GPIO_FUNC_SPI);
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}
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void DEV_SPI_Init(void)
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{
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//spi_init(SPI_PORT, 4000 * 1000);
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//gpio_set_function(EPD_CLK_PIN, GPIO_FUNC_SPI);
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//gpio_set_function(EPD_MOSI_PIN, GPIO_FUNC_SPI);
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}
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void DEV_SPI_SendData(UBYTE Reg)
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{
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UBYTE i,j=Reg;
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DEV_GPIO_Mode(SPI_MOSI, 1);
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DEV_GPIO_Mode(SPI_CLK, 1);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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for(i = 0; i<8; i++)
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{
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DEV_Digital_Write(SPI_CLK, 0);
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if (j & 0x80)
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{
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DEV_Digital_Write(SPI_MOSI, 1);
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}
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else
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{
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DEV_Digital_Write(SPI_MOSI, 0);
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}
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DEV_Digital_Write(SPI_CLK, 1);
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j = j << 1;
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}
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DEV_Digital_Write(SPI_CLK, 0);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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}
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UBYTE DEV_SPI_ReadData(void)
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{
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UBYTE i,j=0xff;
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DEV_GPIO_Mode(SPI_MOSI, 0);
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DEV_GPIO_Mode(SPI_CLK, 1);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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for(i = 0; i<8; i++)
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{
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DEV_Digital_Write(SPI_CLK, 0);
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j = j << 1;
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if (DEV_Digital_Read(SPI_MOSI))
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{
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j = j | 0x01;
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}
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else
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{
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j= j & 0xfe;
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}
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DEV_Digital_Write(SPI_CLK, 1);
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}
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DEV_Digital_Write(SPI_CLK, 0);
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DEV_Digital_Write(EPD_CS_PIN, 1);
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return j;
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}
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/******************************************************************************
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function: Module exits, closes SPI and BCM2835 library
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parameter:
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Info:
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******************************************************************************/
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void DEV_Module_Exit(void)
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{
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}
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