mirror of
https://github.com/apache/nuttx.git
synced 2026-09-24 00:42:03 +08:00
esp32[s2|s3]: Add SPI bitbang support
This commit is contained in:
Eren Terzioglu
committed by
Xiang Xiao
Xiang Xiao
parent
243a2adcaf
commit
3f77e97b03
@@ -40,6 +40,22 @@ config ESPRESSIF_I2C_BITBANG
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---help---
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Software implemented I2C peripheral with GPIOs. Suggested to use if I2C peripherals are already in use.
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config ESPRESSIF_SPI_PERIPH
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bool
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depends on (ESP32S3_SPI2 || ESP32S3_SPI3) || (ESP32_SPI2 || ESP32_SPI3) || (ESP32S2_SPI2 || ESP32S2_SPI3)
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default n
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config ESPRESSIF_SPI_BITBANG
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bool "SPI Bitbang"
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default n
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select ESP32_SPI if ARCH_CHIP_ESP32
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select ESP32S2_SPI if ARCH_CHIP_ESP32S2
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select ESP32S3_SPI if ARCH_CHIP_ESP32S3
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select SPI
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select SPI_BITBANG
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---help---
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Software implemented SPI peripheral with GPIOs. Suggested to use if SPI peripherals are already in use.
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config ESPRESSIF_SPIFLASH
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bool "SPI Flash"
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depends on ARCH_CHIP_ESP32S2
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@@ -104,6 +120,49 @@ config ESPRESSIF_I2C_BITBANG_SDAPIN
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endmenu # I2C bitbang configuration
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menu "SPI bitbang configuration"
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depends on ESPRESSIF_SPI_BITBANG
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config ESPRESSIF_SPI_BITBANG_CSPIN
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int "SPI Bitbang CS Pin"
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default 0
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range 0 21
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config ESPRESSIF_SPI_BITBANG_CLKPIN
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int "SPI Bitbang CLK Pin"
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default 1
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range 0 21
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config ESPRESSIF_SPI_BITBANG_MOSIPIN
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int "SPI Bitbang MOSI Pin"
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default 2
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range 0 21
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config ESPRESSIF_SPI_BITBANG_MISOPIN
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int "SPI Bitbang MISO Pin"
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default 3
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range 0 21
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choice ESPRESSIF_SPI_BITBANG_MODE
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prompt "SPI Bitbang mode"
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default ESPRESSIF_SPI_BITBANG_MODE0
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config ESPRESSIF_SPI_BITBANG_MODE0
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bool "SPI MODE0"
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config ESPRESSIF_SPI_BITBANG_MODE1
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bool "SPI MODE1"
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config ESPRESSIF_SPI_BITBANG_MODE2
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bool "SPI MODE2"
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config ESPRESSIF_SPI_BITBANG_MODE3
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bool "SPI MODE3"
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endchoice # ESPRESSIF_SPI_BITBANG_MODE
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endmenu # SPI bitbang configuration
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config ESPRESSIF_HAVE_OTA_PARTITION
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bool
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default n
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@@ -44,6 +44,10 @@ ifeq ($(CONFIG_ESPRESSIF_I2C_BITBANG),y)
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CHIP_CSRCS += esp_i2c_bitbang.c
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endif
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ifeq ($(CONFIG_ESPRESSIF_SPI_BITBANG),y)
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CHIP_CSRCS += esp_spi_bitbang.c
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endif
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ifeq ($(CONFIG_ESPRESSIF_SPIFLASH),y)
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CHIP_CSRCS += esp_spiflash.c
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ifeq ($(CONFIG_ESPRESSIF_MTD),y)
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@@ -0,0 +1,273 @@
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/****************************************************************************
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* arch/xtensa/src/common/espressif/esp_spi_bitbang.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
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#include <sys/param.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <string.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/irq.h>
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#include <nuttx/mutex.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/spi/spi_bitbang.h>
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#include "esp_spi_bitbang.h"
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#include <nuttx/spi/spi_bitbang.c>
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#if defined(CONFIG_ARCH_CHIP_ESP32S3)
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#include "esp32s3_gpio.h"
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#include "hardware/esp32s3_gpio_sigmap.h"
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#elif defined(CONFIG_ARCH_CHIP_ESP32S2)
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#include "esp32s2_gpio.h"
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#include "esp32s2_gpio_sigmap.h"
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#else
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#include "esp32_gpio.h"
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#include "esp32_gpio_sigmap.h"
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#if defined(CONFIG_ARCH_CHIP_ESP32S3)
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#define CONFIG_GPIO(pin, attr) esp32s3_configgpio(pin, attr)
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#define GPIO_MATRIX_OUT(pin, idx, inv, en_inv) esp32s3_gpio_matrix_out(pin, \
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idx, inv, en_inv)
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#elif defined(CONFIG_ARCH_CHIP_ESP32S2)
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#define CONFIG_GPIO(pin, attr) esp32s2_configgpio(pin, attr)
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#define GPIO_MATRIX_OUT(pin, idx, inv, en_inv) esp32s2_gpio_matrix_out(pin, \
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idx, inv, en_inv)
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#else
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#define CONFIG_GPIO(pin, attr) esp32_configgpio(pin, attr)
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#define GPIO_MATRIX_OUT(pin, idx, inv, en_inv) esp32_gpio_matrix_out(pin, \
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idx, inv, en_inv)
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#endif
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#if defined(CONFIG_ESPRESSIF_SPI_BITBANG_MODE0)
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#undef SPI_BITBANG_DISABLEMODE0
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#define SPI_BITBANG_DISABLEMODE1 1
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#define SPI_BITBANG_DISABLEMODE2 1
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#define SPI_BITBANG_DISABLEMODE3 1
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#elif defined(CONFIG_ESPRESSIF_SPI_BITBANG_MODE1)
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#undef SPI_BITBANG_DISABLEMODE1
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#define SPI_BITBANG_DISABLEMODE0 1
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#define SPI_BITBANG_DISABLEMODE2 1
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#define SPI_BITBANG_DISABLEMODE3 1
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#elif defined(CONFIG_ESPRESSIF_SPI_BITBANG_MODE2)
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#undef SPI_BITBANG_DISABLEMODE2
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#define SPI_BITBANG_DISABLEMODE0 1
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#define SPI_BITBANG_DISABLEMODE1 1
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#define SPI_BITBANG_DISABLEMODE3 1
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#else
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#undef SPI_BITBANG_DISABLEMODE3
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#define SPI_BITBANG_DISABLEMODE0 1
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#define SPI_BITBANG_DISABLEMODE1 1
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#define SPI_BITBANG_DISABLEMODE2 1
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#endif
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* Lower-half SPI */
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static void spi_select(struct spi_bitbang_s *priv, uint32_t devid,
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bool selected);
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static uint8_t spi_status(struct spi_bitbang_s *priv, uint32_t devid);
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#ifdef CONFIG_SPI_CMDDATA
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static int spi_cmddata(struct spi_bitbang_s *priv, uint32_t devid,
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bool cmd);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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struct spi_bitbang_ops_s esp_spi_bitbang_ops =
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{
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.select = spi_select,
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.status = spi_status,
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#ifdef CONFIG_SPI_CMDDATA
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.cmddata = spi_cmddata,
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#endif
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.setfrequency = spi_setfrequency,
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.setmode = spi_setmode,
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.exchange = spi_exchange,
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: spi_select
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*
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* Description:
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* Select or de-selected the SPI device specified by 'devid'
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*
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* Input Parameters:
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* priv - An instance of the bit-bang driver structure
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* devid - The device to select or de-select
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* selected - True:select false:de-select
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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static void spi_select(struct spi_bitbang_s *priv, uint32_t devid,
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bool selected)
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{
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if (selected)
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{
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SPI_CLRCS;
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}
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else
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{
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SPI_SETCS;
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}
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}
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/****************************************************************************
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* Name: spi_status
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*
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* Description:
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* Return status of the SPI device specified by 'devid'
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*
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* Input Parameters:
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* priv - An instance of the bit-bang driver structure
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* devid - The device to select or de-select
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*
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* Returned Value:
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* An 8-bit, bit-encoded status byte
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*
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****************************************************************************/
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static uint8_t spi_status(struct spi_bitbang_s *priv, uint32_t devid)
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{
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if (devid == SPIDEV_MMCSD(0))
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{
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return SPI_STATUS_PRESENT;
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}
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return 0;
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}
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/****************************************************************************
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* Name: spi_cmddata
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*
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* Description:
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* If there were was a CMD/DATA line, this function would manage it
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*
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* Input Parameters:
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* priv - An instance of the bit-bang driver structure
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* devid - The device to use
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* cmd - True=MCD false=DATA
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*
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* Returned Value:
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* OK
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*
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****************************************************************************/
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#ifdef CONFIG_SPI_CMDDATA
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static int spi_cmddata(struct spi_bitbang_s *priv, uint32_t devid,
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bool cmd)
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{
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return OK;
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: esp_spi_bitbang_init
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*
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* Description:
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* Initialize the SPI bit-bang driver
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* A non-NULL reference to the SPI driver on success
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*
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****************************************************************************/
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struct spi_dev_s *esp_spi_bitbang_init(void)
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{
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/* Configure the SPI bit-bang pins */
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GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_CSPIN, true);
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GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_MOSIPIN, true);
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GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_CLKPIN, true);
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#if CONFIG_ESPRESSIF_SPI_SWCS
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CONFIG_GPIO(CONFIG_ESPRESSIF_SPI_BITBANG_CSPIN, OUTPUT_FUNCTION_1);
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GPIO_MATRIX_OUT(CONFIG_ESPRESSIF_SPI_BITBANG_CSPIN, SIG_GPIO_OUT_IDX,
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0, 0);
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#endif
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CONFIG_GPIO(CONFIG_ESPRESSIF_SPI_BITBANG_MOSIPIN, OUTPUT_FUNCTION_1);
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GPIO_MATRIX_OUT(CONFIG_ESPRESSIF_SPI_BITBANG_MOSIPIN, SIG_GPIO_OUT_IDX,
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0, 0);
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CONFIG_GPIO(CONFIG_ESPRESSIF_SPI_BITBANG_MISOPIN,
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INPUT_FUNCTION_1 | PULLUP);
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GPIO_MATRIX_OUT(CONFIG_ESPRESSIF_SPI_BITBANG_MISOPIN, SIG_GPIO_OUT_IDX,
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0, 0);
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CONFIG_GPIO(CONFIG_ESPRESSIF_SPI_BITBANG_CLKPIN, OUTPUT_FUNCTION_1);
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GPIO_MATRIX_OUT(CONFIG_ESPRESSIF_SPI_BITBANG_CLKPIN, SIG_GPIO_OUT_IDX,
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0, 0);
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/* Create the SPI driver instance */
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return spi_create_bitbang(&esp_spi_bitbang_ops, NULL);
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}
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/****************************************************************************
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* Name: esp_spi_bitbang_uninitialize
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*
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* Description:
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* Destroy an instance of the SPI bit-bang driver.
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*
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* Input Parameters:
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* dev - device instance, target driver to destroy.
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*
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****************************************************************************/
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void esp_spi_bitbang_uninitialize(struct spi_dev_s *dev)
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{
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spi_destroy_bitbang(dev);
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}
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#endif /* CONFIG_ESPRESSIF_SPI_BITBANG */
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@@ -0,0 +1,133 @@
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/****************************************************************************
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* arch/xtensa/src/common/espressif/esp_spi_bitbang.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#ifndef __ARCH_XTENSA_SRC_COMMON_ESPRESSIF_ESP_SPI_BITBANG_H
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#define __ARCH_XTENSA_SRC_COMMON_ESPRESSIF_ESP_SPI_BITBANG_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
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#include <nuttx/spi/spi.h>
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#include <nuttx/spi/spi_bitbang.h>
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#if defined(CONFIG_ARCH_CHIP_ESP32S3)
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#include "esp32s3_gpio.h"
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#elif defined(CONFIG_ARCH_CHIP_ESP32S2)
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#include "esp32s2_gpio.h"
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#else
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#include "esp32_gpio.h"
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#if defined(CONFIG_ARCH_CHIP_ESP32S3)
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#define GPIO_WRITE(pin, value) esp32s3_gpiowrite(pin, value)
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#define GPIO_READ(pin) esp32s3_gpioread(pin)
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#elif defined(CONFIG_ARCH_CHIP_ESP32S2)
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#define GPIO_WRITE(pin, value) esp32s2_gpiowrite(pin, value)
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#define GPIO_READ(pin) esp32s2_gpioread(pin)
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#else
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#define GPIO_WRITE(pin, value) esp32_gpiowrite(pin, value)
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#define GPIO_READ(pin) esp3_gpioread(pin)
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#endif
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/* Macros needed to include/nuttx/spi/spi_bitbang.c. */
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#define SPI_SETSCK GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_CLKPIN, true)
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#define SPI_CLRSCK GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_CLKPIN, false)
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#define SPI_SETMOSI GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_MOSIPIN, true)
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#define SPI_CLRMOSI GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_MOSIPIN, \
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false)
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#define SPI_GETMISO GPIO_READ(CONFIG_ESPRESSIF_SPI_BITBANG_MISOPIN)
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#define SPI_SETCS GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_CSPIN, true)
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#define SPI_CLRCS GPIO_WRITE(CONFIG_ESPRESSIF_SPI_BITBANG_CSPIN, false)
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/* Calibration value for timing loop */
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#define SPI_BITBANG_LOOPSPERMSEC CONFIG_BOARD_LOOPSPERMSEC
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/* SPI_PERBIT_NSEC is the minimum time to transfer one bit. This determines
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* the maximum frequency and is also used to calculate delays to achieve
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* other SPI frequencies.
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*/
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#define SPI_PERBIT_NSEC 100
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#define ESPRESSIF_SPI_BITBANG 4
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/****************************************************************************
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* Name: esp_spi_bitbang_init
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*
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* Description:
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* Initialize the SPI bit-bang driver
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* A non-NULL reference to the SPI driver on success
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*
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****************************************************************************/
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struct spi_dev_s *esp_spi_bitbang_init(void);
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/****************************************************************************
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* Name: esp_spi_bitbang_uninitialize
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*
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* Description:
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* Destroy an instance of the SPI bit-bang driver.
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*
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* Input Parameters:
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* dev - device instance, target driver to destroy.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void esp_spi_bitbang_uninitialize(struct spi_dev_s *dev);
|
||||
|
||||
#endif /* CONFIG_ESPRESSIF_SPI_BITBANG */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#undef EXTERN
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_XTENSA_SRC_COMMON_ESPRESSIF_ESP_SPI_BITBANG_H */
|
||||
@@ -610,6 +610,7 @@ config ESP32_SPI2
|
||||
select ESP32_SPI
|
||||
select ESP32_GPIO_IRQ
|
||||
select SPI
|
||||
select ESPRESSIF_SPI_PERIPH
|
||||
|
||||
config ESP32_SPI3
|
||||
bool "SPI 3"
|
||||
@@ -617,6 +618,7 @@ config ESP32_SPI3
|
||||
select ESP32_SPI
|
||||
select ESP32_GPIO_IRQ
|
||||
select SPI
|
||||
select ESPRESSIF_SPI_PERIPH
|
||||
|
||||
config ESP32_SPIRAM
|
||||
bool "SPI RAM"
|
||||
|
||||
@@ -353,12 +353,14 @@ config ESP32S2_SPI2
|
||||
default n
|
||||
select ESP32S2_SPI
|
||||
select SPI
|
||||
select ESPRESSIF_SPI_PERIPH
|
||||
|
||||
config ESP32S2_SPI3
|
||||
bool "SPI 3"
|
||||
default n
|
||||
select ESP32S2_SPI
|
||||
select SPI
|
||||
select ESPRESSIF_SPI_PERIPH
|
||||
|
||||
config ESP32S2_SPIRAM
|
||||
bool "SPI RAM Support"
|
||||
|
||||
@@ -615,6 +615,7 @@ config ESP32S3_SPI2
|
||||
select ESP32S3_SPI
|
||||
select SPI
|
||||
select ESP32S3_GPIO_IRQ if SPI_SLAVE
|
||||
select ESPRESSIF_SPI_PERIPH
|
||||
|
||||
config ESP32S3_SPI3
|
||||
bool "SPI 3"
|
||||
@@ -622,6 +623,7 @@ config ESP32S3_SPI3
|
||||
select ESP32S3_SPI
|
||||
select SPI
|
||||
select ESP32S3_GPIO_IRQ if SPI_SLAVE
|
||||
select ESPRESSIF_SPI_PERIPH
|
||||
|
||||
config ESP32S3_DMA
|
||||
bool "General DMA (GDMA)"
|
||||
|
||||
@@ -30,7 +30,105 @@
|
||||
|
||||
#include <nuttx/spi/spi_transfer.h>
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_PERIPH
|
||||
#include "esp32_spi.h"
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
#include "espressif/esp_spi_bitbang.h"
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: spi_bitbang_driver_init
|
||||
*
|
||||
* Description:
|
||||
* Initialize SPI bitbang driver and register the /dev/spi device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* port - The SPI bus number, used to build the device path as /dev/spiN
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) is returned on success; A negated errno value is returned
|
||||
* to indicate the nature of any failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
static int spi_bitbang_driver_init(int port)
|
||||
{
|
||||
int ret;
|
||||
struct spi_dev_s *spi;
|
||||
|
||||
syslog(LOG_INFO, "Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp_spi_bitbang_init();
|
||||
|
||||
if (spi == NULL)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
esp_spi_bitbang_uninitialize(spi);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: spi_driver_init
|
||||
*
|
||||
* Description:
|
||||
* Initialize SPI driver and register the /dev/spi device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* port - The SPI bus number, used to build the device path as /dev/spiN
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) is returned on success; A negated errno value is returned
|
||||
* to indicate the nature of any failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_PERIPH
|
||||
static int spi_driver_init(int port)
|
||||
{
|
||||
int ret = OK;
|
||||
struct spi_dev_s *spi;
|
||||
|
||||
syslog(LOG_INFO, "Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp32_spibus_initialize(port);
|
||||
|
||||
if (spi == NULL)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
esp32_spibus_uninitialize(spi);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
@@ -40,32 +138,64 @@
|
||||
* Name: board_spidev_initialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize and register SPI driver for the specified SPI port.
|
||||
* Initialize SPI driver and register the /dev/spi device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* port - The SPI bus number, used to build the device path as /dev/spiN
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) is returned on success; A negated errno value is returned
|
||||
* to indicate the nature of any failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int board_spidev_initialize(int port)
|
||||
{
|
||||
int ret;
|
||||
struct spi_dev_s *spi;
|
||||
int ret = OK;
|
||||
|
||||
spiinfo("Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp32_spibus_initialize(port);
|
||||
if (spi == NULL)
|
||||
switch (port)
|
||||
{
|
||||
spierr("Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
#ifdef CONFIG_ESP32_SPI2
|
||||
case ESP32_SPI2:
|
||||
{
|
||||
ret = spi_driver_init(ESP32_SPI2);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
spierr("Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
#ifdef CONFIG_ESP32_SPI3
|
||||
case ESP32_SPI3:
|
||||
{
|
||||
ret = spi_driver_init(ESP32_SPI3);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
esp32_spibus_uninitialize(spi);
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
case ESPRESSIF_SPI_BITBANG:
|
||||
{
|
||||
ret = spi_bitbang_driver_init(ESPRESSIF_SPI_BITBANG);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
default:
|
||||
{
|
||||
wderr("ERROR: unsupported SPI %d\n", port);
|
||||
return ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
|
||||
@@ -30,10 +30,108 @@
|
||||
|
||||
#include <nuttx/spi/spi_transfer.h>
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_PERIPH
|
||||
#include "esp32s2_spi.h"
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
#include "espressif/esp_spi_bitbang.h"
|
||||
#endif
|
||||
|
||||
#include "esp32s2_board_spidev.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: spi_bitbang_driver_init
|
||||
*
|
||||
* Description:
|
||||
* Initialize SPI bitbang driver and register the /dev/spi device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* port - The SPI bus number, used to build the device path as /dev/spiN
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) is returned on success; A negated errno value is returned
|
||||
* to indicate the nature of any failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
static int spi_bitbang_driver_init(int port)
|
||||
{
|
||||
int ret;
|
||||
struct spi_dev_s *spi;
|
||||
|
||||
syslog(LOG_INFO, "Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp_spi_bitbang_init();
|
||||
|
||||
if (spi == NULL)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
esp_spi_bitbang_uninitialize(spi);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: spi_driver_init
|
||||
*
|
||||
* Description:
|
||||
* Initialize SPI driver and register the /dev/spi device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* port - The SPI bus number, used to build the device path as /dev/spiN
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) is returned on success; A negated errno value is returned
|
||||
* to indicate the nature of any failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_PERIPH
|
||||
static int spi_driver_init(int port)
|
||||
{
|
||||
int ret = OK;
|
||||
struct spi_dev_s *spi;
|
||||
|
||||
syslog(LOG_INFO, "Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp32s2_spibus_initialize(port);
|
||||
|
||||
if (spi == NULL)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
esp32s2_spibus_uninitialize(spi);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
@@ -55,26 +153,51 @@
|
||||
|
||||
int board_spidev_initialize(int port)
|
||||
{
|
||||
int ret;
|
||||
struct spi_dev_s *spi;
|
||||
int ret = OK;
|
||||
|
||||
syslog(LOG_INFO, "Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp32s2_spibus_initialize(port);
|
||||
if (spi == NULL)
|
||||
switch (port)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
#ifdef CONFIG_ESP32S2_SPI2
|
||||
case ESP32S2_SPI2:
|
||||
{
|
||||
ret = spi_driver_init(ESP32S2_SPI2);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
#ifdef CONFIG_ESP32S2_SPI3
|
||||
case ESP32S2_SPI3:
|
||||
{
|
||||
ret = spi_driver_init(ESP32S2_SPI3);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
esp32s2_spibus_uninitialize(spi);
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
case ESPRESSIF_SPI_BITBANG:
|
||||
{
|
||||
ret = spi_bitbang_driver_init(ESPRESSIF_SPI_BITBANG);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
default:
|
||||
{
|
||||
wderr("ERROR: unsupported SPI %d\n", port);
|
||||
return ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
|
||||
@@ -30,7 +30,105 @@
|
||||
|
||||
#include <nuttx/spi/spi_transfer.h>
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_PERIPH
|
||||
#include "esp32s3_spi.h"
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
#include "espressif/esp_spi_bitbang.h"
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: spi_bitbang_driver_init
|
||||
*
|
||||
* Description:
|
||||
* Initialize SPI bitbang driver and register the /dev/spi device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* port - The SPI bus number, used to build the device path as /dev/spiN
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) is returned on success; A negated errno value is returned
|
||||
* to indicate the nature of any failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
static int spi_bitbang_driver_init(int port)
|
||||
{
|
||||
int ret;
|
||||
struct spi_dev_s *spi;
|
||||
|
||||
syslog(LOG_INFO, "Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp_spi_bitbang_init();
|
||||
|
||||
if (spi == NULL)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
esp_spi_bitbang_uninitialize(spi);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: spi_driver_init
|
||||
*
|
||||
* Description:
|
||||
* Initialize SPI driver and register the /dev/spi device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* port - The SPI bus number, used to build the device path as /dev/spiN
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) is returned on success; A negated errno value is returned
|
||||
* to indicate the nature of any failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_PERIPH
|
||||
static int spi_driver_init(int port)
|
||||
{
|
||||
int ret = OK;
|
||||
struct spi_dev_s *spi;
|
||||
|
||||
syslog(LOG_INFO, "Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp32s3_spibus_initialize(port);
|
||||
|
||||
if (spi == NULL)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
esp32s3_spibus_uninitialize(spi);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
@@ -53,26 +151,51 @@
|
||||
|
||||
int board_spidev_initialize(int port)
|
||||
{
|
||||
int ret;
|
||||
struct spi_dev_s *spi;
|
||||
int ret = OK;
|
||||
|
||||
spiinfo("Initializing /dev/spi%d...\n", port);
|
||||
|
||||
/* Initialize SPI device */
|
||||
|
||||
spi = esp32s3_spibus_initialize(port);
|
||||
if (spi == NULL)
|
||||
switch (port)
|
||||
{
|
||||
spierr("Failed to initialize SPI%d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
#ifdef CONFIG_ESP32S3_SPI2
|
||||
case ESP32S3_SPI2:
|
||||
{
|
||||
ret = spi_driver_init(ESP32S3_SPI2);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
ret = spi_register(spi, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
spierr("Failed to register /dev/spi%d: %d\n", port, ret);
|
||||
#ifdef CONFIG_ESP32S3_SPI3
|
||||
case ESP32S3_SPI3:
|
||||
{
|
||||
ret = spi_driver_init(ESP32S3_SPI3);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
esp32s3_spibus_uninitialize(spi);
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
case ESPRESSIF_SPI_BITBANG:
|
||||
{
|
||||
ret = spi_bitbang_driver_init(ESPRESSIF_SPI_BITBANG);
|
||||
if (ret != OK)
|
||||
{
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
}
|
||||
#endif
|
||||
|
||||
default:
|
||||
{
|
||||
wderr("ERROR: unsupported SPI %d\n", port);
|
||||
return ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
|
||||
@@ -107,6 +107,9 @@
|
||||
#ifdef CONFIG_ESP32S3_SPI
|
||||
#include "esp32s3_spi.h"
|
||||
#include "esp32s3_board_spidev.h"
|
||||
# ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
# include "espressif/esp_spi_bitbang.h"
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ESP32S3_SDMMC
|
||||
@@ -179,7 +182,15 @@ int esp32s3_bringup(void)
|
||||
syslog(LOG_ERR, "ERROR: Failed to init spidev 3: %d\n", ret);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
|
||||
ret = board_spidev_initialize(ESPRESSIF_SPI_BITBANG);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "ERROR: Failed to init spidev 3: %d\n", ret);
|
||||
}
|
||||
#endif /* CONFIG_ESPRESSIF_SPI_BITBANG */
|
||||
#endif /* CONFIG_ESP32S3_SPI && CONFIG_SPI_DRIVER*/
|
||||
|
||||
#if defined(CONFIG_ESP32S3_EFUSE)
|
||||
ret = esp32s3_efuse_initialize("/dev/efuse");
|
||||
|
||||
Reference in New Issue
Block a user