[bsp][ESP32][esp32c3] add spi driver
This commit is contained in:
wumingzi
GitHub
parent
2b281ff0cb
commit
a0415846db
|
|
@ -47,6 +47,11 @@ menu "Onboard Peripheral Drivers"
|
|||
default 20 if BSP_BOARD_LUATOS_ESP32C3
|
||||
depends on BSP_USING_UART
|
||||
|
||||
config RT_BSP_SPI_CS_PIN
|
||||
int "SPI GPIO PIN SET"
|
||||
default 10 if BSP_BOARD_LUATOS_ESP32C3
|
||||
depends on BSP_USING_SPI2
|
||||
|
||||
endmenu
|
||||
|
||||
|
||||
|
|
@ -70,7 +75,17 @@ menu "On-chip Peripheral Drivers"
|
|||
config BSP_USING_I2C0
|
||||
bool "Enable I2C0"
|
||||
default n
|
||||
endif
|
||||
endif
|
||||
|
||||
menuconfig BSP_USING_SPI
|
||||
bool "Enable SPI"
|
||||
default n
|
||||
select RT_USING_SPI
|
||||
if BSP_USING_SPI
|
||||
config BSP_USING_SPI2
|
||||
bool "Enable SPI2"
|
||||
default n
|
||||
endif
|
||||
|
||||
config BSP_USING_WIFI
|
||||
bool "Enable WIFI"
|
||||
|
|
@ -137,6 +152,4 @@ config BSP_ENABLE_GDBSTUB
|
|||
bool "Enable ESP_GDBSTUB compontent"
|
||||
default n
|
||||
|
||||
endmenu
|
||||
|
||||
|
||||
endmenu
|
||||
|
|
@ -27,6 +27,9 @@ if GetDepend('BSP_USING_HWTIMER'):
|
|||
if GetDepend('BSP_USING_WIFI'):
|
||||
src += ['drv_wifi.c']
|
||||
|
||||
if GetDepend('BSP_USING_SPI'):
|
||||
src += ['drv_spi.c']
|
||||
|
||||
group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
|
||||
|
||||
Return('group')
|
||||
|
|
|
|||
|
|
@ -0,0 +1,177 @@
|
|||
/*
|
||||
* Copyright (c) 2006-2024 RT-Thread Development Team
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2024-10-08 wumingzi first implementation
|
||||
*/
|
||||
|
||||
#include <rtthread.h>
|
||||
#include <rtdevice.h>
|
||||
|
||||
#include "rtdef.h"
|
||||
#include "rttypes.h"
|
||||
#include "sdkconfig.h"
|
||||
|
||||
#include "hal/spi_hal.h" /*bsp/ESP32_C3/packages/ESP-IDF-latest/components/hal/include/hal/spi_types.h*/
|
||||
#include "driver/gpio.h" /*bsp/ESP32_C3/packages/ESP-IDF-latest/components/driver/include/driver/gpio.h*/
|
||||
#include "driver/spi_master.h"
|
||||
|
||||
#include "drv_spi.h"
|
||||
|
||||
#ifdef RT_USING_SPI
|
||||
#ifdef BSP_USING_SPI2
|
||||
#define LOG_TAG "drv.spi"
|
||||
#include <rtdbg.h>
|
||||
|
||||
static struct rt_spi_bus spi_bus2;
|
||||
|
||||
static spi_device_handle_t spi;
|
||||
|
||||
static spi_bus_config_t buscfg;
|
||||
|
||||
static struct esp32_spi spi_bus_obj[] = {
|
||||
#ifdef BSP_USING_SPI2
|
||||
{
|
||||
.bus_name = "spi2",
|
||||
.spi_bus = &spi_bus2,
|
||||
.esp32_spi_bus_cfg = &buscfg,
|
||||
},
|
||||
#endif /* BSP_USING_SPI2 */
|
||||
};
|
||||
|
||||
/* private rt-thread spi ops function */
|
||||
static rt_err_t spi_configure(struct rt_spi_device* device, struct rt_spi_configuration* configuration);
|
||||
static rt_ssize_t spixfer(struct rt_spi_device* device, struct rt_spi_message* message);
|
||||
|
||||
static struct rt_spi_ops esp32_spi_ops =
|
||||
{
|
||||
.configure = spi_configure,
|
||||
.xfer = spixfer,
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief SPI Initialization
|
||||
* @param esp32_spi: SPI BUS
|
||||
* @retval None
|
||||
*/
|
||||
static void esp32_spi_init(struct esp32_spi *esp32_spi)
|
||||
{
|
||||
spi_configure(NULL,NULL);
|
||||
}
|
||||
|
||||
static void spi_pin_mode(rt_base_t pin)
|
||||
{
|
||||
gpio_config_t io_conf;
|
||||
io_conf.intr_type = GPIO_INTR_DISABLE;
|
||||
io_conf.mode = GPIO_MODE_OUTPUT;
|
||||
io_conf.pin_bit_mask = (1ULL << pin);
|
||||
io_conf.pull_down_en = 0;
|
||||
io_conf.pull_up_en = 1;
|
||||
}
|
||||
|
||||
static rt_err_t spi_configure(struct rt_spi_device* device,
|
||||
struct rt_spi_configuration* configuration)
|
||||
{
|
||||
/* spi_pin_mode(RT_BSP_SPI_CS_PIN);*/
|
||||
static spi_bus_config_t buscfg =
|
||||
{
|
||||
.miso_io_num=SPI2_IOMUX_PIN_NUM_MISO, /*MISO*/
|
||||
.mosi_io_num=SPI2_IOMUX_PIN_NUM_MOSI, /*MOSI*/
|
||||
.sclk_io_num=SPI2_IOMUX_PIN_NUM_CLK, /*CLK*/
|
||||
.quadwp_io_num=-1, /*不使用*/
|
||||
.quadhd_io_num=-1, /*不使用*/
|
||||
.max_transfer_sz=4092 /*最大传送数据长度*/
|
||||
};
|
||||
|
||||
esp_err_t err = spi_bus_initialize(SPI2_HOST, &buscfg, SPI_DMA_CH_AUTO);
|
||||
ESP_ERROR_CHECK(err);
|
||||
|
||||
static spi_device_interface_config_t devcfg={
|
||||
.clock_speed_hz = SPI_MASTER_FREQ_8M,
|
||||
.mode = 0,
|
||||
.spics_io_num = RT_BSP_SPI_CS_PIN,
|
||||
.queue_size = 7,
|
||||
};
|
||||
|
||||
err = spi_bus_add_device(SPI2_HOST, &devcfg, &spi);
|
||||
ESP_ERROR_CHECK(err);
|
||||
|
||||
spi_bus_obj[0].bus_name = "spi2";
|
||||
spi_bus_obj[0].spi_bus = &spi_bus2;
|
||||
spi_bus_obj[0].esp32_spi_bus_cfg = &buscfg;
|
||||
|
||||
return RT_EOK;
|
||||
};
|
||||
|
||||
static rt_ssize_t spixfer(struct rt_spi_device* device, struct rt_spi_message* message)
|
||||
{
|
||||
|
||||
RT_ASSERT(device != NULL);
|
||||
RT_ASSERT(message != NULL);
|
||||
|
||||
static spi_transaction_t trans;
|
||||
|
||||
trans.tx_buffer = message->send_buf;
|
||||
trans.rx_buffer = message->recv_buf;
|
||||
trans.length = message->length;
|
||||
trans.rxlength = message->length;
|
||||
|
||||
spi_device_acquire_bus(spi, portMAX_DELAY);
|
||||
esp_err_t err = spi_device_polling_transmit(spi, &trans);
|
||||
|
||||
spi_device_release_bus(spi);
|
||||
|
||||
ESP_ERROR_CHECK(err);
|
||||
return RT_EOK;
|
||||
};
|
||||
|
||||
/**
|
||||
* Attach the spi device to SPI bus, this function must be used after initialization.
|
||||
*/
|
||||
rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, rt_base_t cs_pin)
|
||||
{
|
||||
RT_ASSERT(bus_name != RT_NULL);
|
||||
RT_ASSERT(device_name != RT_NULL);
|
||||
|
||||
rt_err_t result;rt_device_t busp = RT_NULL;
|
||||
struct rt_spi_device *spi_device;
|
||||
|
||||
/* attach the device to spi bus*/
|
||||
spi_device = (struct rt_spi_device *)rt_malloc(sizeof(struct rt_spi_device));
|
||||
RT_ASSERT(spi_device != RT_NULL);
|
||||
|
||||
result = rt_spi_bus_attach_device(spi_device, device_name, bus_name, (void *)cs_pin);
|
||||
|
||||
if (result != RT_EOK)
|
||||
{
|
||||
LOG_E("%s attach to %s faild, %d\n", device_name, bus_name, result);
|
||||
}
|
||||
|
||||
RT_ASSERT(result == RT_EOK);
|
||||
|
||||
LOG_D("%s attach to %s done", device_name, bus_name);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
int rt_hw_spi_init(void)
|
||||
{
|
||||
int result = 0;
|
||||
|
||||
spi_bus_obj[0].spi_bus->parent.user_data = (void *)&spi_bus_obj[0];
|
||||
result = rt_spi_bus_register(spi_bus_obj[0].spi_bus, spi_bus_obj[0].bus_name, &esp32_spi_ops);
|
||||
|
||||
RT_ASSERT(result == RT_EOK);
|
||||
|
||||
LOG_D("%s bus init done", spi_bus_obj[i].bus_name);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
INIT_BOARD_EXPORT(rt_hw_spi_init);
|
||||
|
||||
#endif /* BSP_USING_SPI0 || BSP_USING_SPI1 || BSP_USING_SPI2 || BSP_USING_SPI3 || BSP_USING_SPI4*/
|
||||
#endif /* RT_USING_SPI */
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
/*
|
||||
* Copyright (c) 2006-2024 RT-Thread Development Team
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2024-10-08 wumingzi first implementation
|
||||
*/
|
||||
|
||||
#ifndef __DRV_SPI_H__
|
||||
#define __DRV_SPI_H__
|
||||
|
||||
#include <rthw.h>
|
||||
#include <rtthread.h>
|
||||
#include <board.h>
|
||||
#include "driver/spi_common.h" /*bsp/ESP32_C3/packages/ESP-IDF-latest/components/driver/include/driver/spi_common.h*/
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* esp32 spi dirver class */
|
||||
struct esp32_spi
|
||||
{
|
||||
char *bus_name;
|
||||
struct rt_spi_bus *spi_bus;
|
||||
spi_bus_config_t* esp32_spi_bus_cfg;
|
||||
};
|
||||
|
||||
rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, rt_base_t cs_pin);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __DRV_SPI_H__ */
|
||||
Loading…
Reference in New Issue