add spi twi drv for nrf5340
This commit is contained in:
andrew li
Man, Jianting (Meco)
parent
450cd68a4a
commit
5f4b4ae5f1
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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@ -7,14 +7,16 @@
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* Date Author Notes
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* 2020-11-15 xckhmf First Verison
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* 2021-11-27 chenyingchun fix _master_xfer bug
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*
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* 2023-01-28 Andrew add Nrf5340 support
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*/
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#include <rtdevice.h>
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#include <nrfx_twi_twim.h>
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#include <nrfx_twim.h>
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#include <drv_i2c.h>
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#if defined(BSP_USING_I2C0) || defined(BSP_USING_I2C1)
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#if defined(BSP_USING_I2C0) || defined(BSP_USING_I2C1) || defined(BSP_USING_I2C2) || defined(BSP_USING_I2C3)
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typedef struct
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{
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nrf_twim_frequency_t freq;
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@ -43,6 +45,28 @@ static drv_i2c_cfg_t drv_i2c_1 =
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};
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static struct rt_i2c_bus_device i2c1_bus;
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#endif
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#ifdef BSP_USING_I2C2
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static drv_i2c_cfg_t drv_i2c_2 =
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{
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.freq = NRF_TWIM_FREQ_400K,
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.scl_pin = BSP_I2C2_SCL_PIN,
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.sda_pin = BSP_I2C2_SDA_PIN,
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.twi_instance = NRFX_TWIM_INSTANCE(2)
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};
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static struct rt_i2c_bus_device i2c2_bus;
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#endif
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#ifdef BSP_USING_I2C3
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static drv_i2c_cfg_t drv_i2c_3 =
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{
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.freq = NRF_TWIM_FREQ_400K,
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.scl_pin = BSP_I2C3_SCL_PIN,
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.sda_pin = BSP_I2C3_SDA_PIN,
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.twi_instance = NRFX_TWIM_INSTANCE(3)
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};
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static struct rt_i2c_bus_device i2c3_bus;
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#endif
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static int twi_master_init(struct rt_i2c_bus_device *bus)
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{
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nrfx_err_t rtn;
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@ -128,6 +152,22 @@ int rt_hw_i2c_init(void)
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twi_master_init(&i2c1_bus);
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rt_i2c_bus_device_register(&i2c1_bus, "i2c1");
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#endif
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#ifdef BSP_USING_I2C2
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i2c2_bus.ops= &_i2c_ops;
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i2c2_bus.timeout = 0;
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i2c2_bus.priv = (void *)&drv_i2c_2;
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twi_master_init(&i2c2_bus);
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rt_i2c_bus_device_register(&i2c2_bus, "i2c2");
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#endif
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#ifdef BSP_USING_I2C3
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i2c3_bus.ops= &_i2c_ops;
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i2c3_bus.timeout = 0;
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i2c3_bus.priv = (void *)&drv_i2c_3;
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twi_master_init(&i2c3_bus);
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rt_i2c_bus_device_register(&i2c3_bus, "i2c3");
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#endif
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return 0;
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}
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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@ -7,6 +7,7 @@
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* Date Author Notes
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* 2020-05-22 Sherman first version
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* 2020-11-02 xckhmf fixed bug
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* 2023-01-28 Andrew add Nrf5340 support
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*/
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#include <stdint.h>
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@ -19,7 +20,355 @@
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#define LOG_TAG "drv.spi"
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#ifdef BSP_USING_SPI
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#if defined(SOC_NRF5340)
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#if defined(BSP_USING_SPI0) || defined(BSP_USING_SPI1) || defined(BSP_USING_SPI2) || defined(BSP_USING_SPI3) || defined(BSP_USING_SPI4)
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static struct nrfx_drv_spi_config spi_config[] =
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{
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#ifdef BSP_USING_SPI0
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NRFX_SPI0_CONFIG,
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#endif
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#ifdef BSP_USING_SPI1
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NRFX_SPI1_CONFIG,
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#endif
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#ifdef BSP_USING_SPI2
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NRFX_SPI2_CONFIG,
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#endif
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#ifdef BSP_USING_SPI3
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NRFX_SPI3_CONFIG,
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#endif
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#ifdef BSP_USING_SPI4
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NRFX_SPI4_CONFIG,
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#endif
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};
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static struct nrfx_drv_spi spi_bus_obj[sizeof(spi_config) / sizeof(spi_config[0])];
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//Configure SPI bus pins using the menuconfig
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static struct nrfx_drv_spi_pin_config bsp_spi_pin[] =
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{
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#ifdef BSP_USING_SPI0
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{
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.sck_pin = BSP_SPI0_SCK_PIN,
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.mosi_pin = BSP_SPI0_MOSI_PIN,
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.miso_pin = BSP_SPI0_MISO_PIN,
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.ss_pin = BSP_SPI0_SS_PIN
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},
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#endif
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#ifdef BSP_USING_SPI1
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{
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.sck_pin = BSP_SPI1_SCK_PIN,
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.mosi_pin = BSP_SPI1_MOSI_PIN,
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.miso_pin = BSP_SPI1_MISO_PIN,
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.ss_pin = BSP_SPI1_SS_PIN
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},
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#endif
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#ifdef BSP_USING_SPI2
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{
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.sck_pin = BSP_SPI2_SCK_PIN,
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.mosi_pin = BSP_SPI2_MOSI_PIN,
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.miso_pin = BSP_SPI2_MISO_PIN,
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.ss_pin = BSP_SPI2_SS_PIN
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},
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#endif
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#ifdef BSP_USING_SPI3
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.sck_pin = BSP_SPI3_SCK_PIN,
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.mosi_pin = BSP_SPI3_MOSI_PIN,
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.miso_pin = BSP_SPI3_MISO_PIN,
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.ss_pin = BSP_SPI3_SS_PIN
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},
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#endif
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#ifdef BSP_USING_SPI4
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{
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.sck_pin = BSP_SPI4_SCK_PIN,
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.mosi_pin = BSP_SPI4_MOSI_PIN,
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.miso_pin = BSP_SPI4_MISO_PIN,
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.ss_pin = BSP_SPI4_SS_PIN
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},
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#endif
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};
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static rt_uint8_t spi_index_find(struct rt_spi_bus *spi_bus)
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{
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for (int i = 0; i < sizeof(spi_config) / sizeof(spi_config[0]); i++)
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{
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if(spi_bus == &spi_bus_obj[i].spi_bus)
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return i;
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}
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return 0xFF;
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}
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/**
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* spi event handler function
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*/
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static void spi0_handler(const nrfx_spim_evt_t *p_event, void *p_context)
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{
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LOG_I("\nspi0_handler");
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}
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static void spi1_handler(const nrfx_spim_evt_t *p_event, void *p_context)
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{
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LOG_I("\nspi1_handler");
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}
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static void spi2_handler(const nrfx_spim_evt_t *p_event, void *p_context)
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{
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LOG_I("\nspi2_handler");
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}
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static void spi3_handler(const nrfx_spim_evt_t *p_event, void *p_context)
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{
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LOG_I("\nspi3_handler");
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}
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static void spi4_handler(const nrfx_spim_evt_t *p_event, void *p_context)
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{
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LOG_I("\nspi4_handler");
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}
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nrfx_spim_evt_handler_t spi_handler[] = {spi0_handler, spi1_handler, spi2_handler ,spi3_handler,spi4_handler};
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/**
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* @brief This function config spi bus
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* @param device
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* @param configuration
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* @retval RT_EOK / RT_ERROR
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*/
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static rt_err_t spi_configure(struct rt_spi_device *device,
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struct rt_spi_configuration *configuration)
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{
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RT_ASSERT(device != RT_NULL);
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RT_ASSERT(device->bus != RT_NULL);
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RT_ASSERT(device->bus->parent.user_data != RT_NULL);
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RT_ASSERT(configuration != RT_NULL);
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rt_uint8_t index = spi_index_find(device->bus);
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RT_ASSERT(index != 0xFF);
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nrfx_spim_t spi = spi_bus_obj[index].spi;
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nrfx_spim_config_t config = NRFX_SPIM_DEFAULT_CONFIG(bsp_spi_pin[index].sck_pin,
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bsp_spi_pin[index].mosi_pin, bsp_spi_pin[index].miso_pin, NRFX_SPIM_PIN_NOT_USED);
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/* spi config ss pin */
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if(device->parent.user_data != RT_NULL)
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{
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nrf_gpio_cfg_output((uint32_t)device->parent.user_data);
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}
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/* spi config bit order */
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if(configuration->mode & RT_SPI_MSB)
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{
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config.bit_order = NRF_SPIM_BIT_ORDER_MSB_FIRST;
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}
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else
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{
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config.bit_order = NRF_SPIM_BIT_ORDER_LSB_FIRST;
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}
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/* spi mode config */
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switch (configuration->mode & RT_SPI_MODE_3 )
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{
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case RT_SPI_MODE_0/* RT_SPI_CPOL:0 , RT_SPI_CPHA:0 */:
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config.mode = NRF_SPIM_MODE_0;
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break;
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case RT_SPI_MODE_1/* RT_SPI_CPOL:0 , RT_SPI_CPHA:1 */:
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config.mode = NRF_SPIM_MODE_1;
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break;
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case RT_SPI_MODE_2/* RT_SPI_CPOL:1 , RT_SPI_CPHA:0 */:
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config.mode = NRF_SPIM_MODE_2;
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break;
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case RT_SPI_MODE_3/* RT_SPI_CPOL:1 , RT_SPI_CPHA:1 */:
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config.mode = NRF_SPIM_MODE_3;
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break;
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default:
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LOG_E("spi_configure mode error %x\n",configuration->mode);
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return RT_ERROR;
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}
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/* spi frequency config */
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switch (configuration->max_hz / 1000)
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{
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case 125:
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config.frequency = NRF_SPIM_FREQ_125K;
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break;
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case 250:
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config.frequency = NRF_SPIM_FREQ_250K;
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break;
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case 500:
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config.frequency = NRF_SPIM_FREQ_500K;
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break;
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case 1000:
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config.frequency = NRF_SPIM_FREQ_1M;
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break;
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case 2000:
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config.frequency = NRF_SPIM_FREQ_2M;
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break;
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case 4000:
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config.frequency = NRF_SPIM_FREQ_4M;
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break;
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case 8000:
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config.frequency = NRF_SPIM_FREQ_8M;
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break;
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default:
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LOG_E("spi_configure rate error %d\n",configuration->max_hz);
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break;
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}
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rt_memcpy((void*)&spi_bus_obj[index].spi_config, (void*)&config, sizeof(nrfx_spim_config_t));
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nrfx_spim_evt_handler_t handler = RT_NULL; //spi send callback handler ,default NULL
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void * context = RT_NULL;
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nrfx_err_t nrf_ret = nrfx_spim_init(&spi, &config, handler, context);
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if(NRFX_SUCCESS == nrf_ret)
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return RT_EOK;
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return RT_ERROR;
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}
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static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
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{
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RT_ASSERT(device != RT_NULL);
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RT_ASSERT(device->bus != RT_NULL);
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RT_ASSERT(device->bus->parent.user_data != RT_NULL);
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rt_uint8_t index = spi_index_find(device->bus);
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nrfx_err_t nrf_ret;
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RT_ASSERT(index != 0xFF);
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nrfx_spim_t * p_instance = &spi_bus_obj[index].spi;
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nrfx_spim_xfer_desc_t p_xfer_desc;
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if(message->cs_take == 1)
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{
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nrf_gpio_pin_clear((uint32_t)device->parent.user_data);
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}
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p_xfer_desc.p_rx_buffer = message->recv_buf;
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p_xfer_desc.rx_length = message->length;
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p_xfer_desc.p_tx_buffer = message->send_buf;
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p_xfer_desc.tx_length = message->length ;
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if(message->send_buf == RT_NULL)
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{
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p_xfer_desc.tx_length = 0;
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}
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if(message->recv_buf == RT_NULL)
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{
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p_xfer_desc.rx_length = 0;
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}
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nrf_ret = nrfx_spim_xfer(p_instance, &p_xfer_desc, 0);
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if(message->cs_release == 1)
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{
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nrf_gpio_pin_set((uint32_t)device->parent.user_data);
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}
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if( NRFX_SUCCESS != nrf_ret)
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{
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return 0;
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}
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else
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{
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return message->length;
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}
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}
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/* spi bus callback function */
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static const struct rt_spi_ops nrfx_spi_ops =
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{
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.configure = spi_configure,
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.xfer = spixfer,
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};
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/*spi bus init*/
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static int rt_hw_spi_bus_init(void)
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{
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rt_err_t result = RT_ERROR;
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for (int i = 0; i < sizeof(spi_config) / sizeof(spi_config[0]); i++)
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{
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spi_bus_obj[i].spi = spi_config[i].spi;
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spi_bus_obj[i].spi_bus.parent.user_data = &spi_config[i]; //SPI INSTANCE
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result = rt_spi_bus_register(&spi_bus_obj[i].spi_bus, spi_config[i].bus_name, &nrfx_spi_ops);
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RT_ASSERT(result == RT_EOK);
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}
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return result;
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}
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int rt_hw_spi_init(void)
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{
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return rt_hw_spi_bus_init();
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}
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INIT_BOARD_EXPORT(rt_hw_spi_init);
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/**
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* Attach the spi device to SPI bus, this function must be used after initialization.
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*/
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rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, rt_uint32_t ss_pin)
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{
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RT_ASSERT(bus_name != RT_NULL);
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RT_ASSERT(device_name != RT_NULL);
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RT_ASSERT(ss_pin != RT_NULL);
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rt_err_t result;
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struct rt_spi_device *spi_device;
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/* attach the device to spi bus*/
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spi_device = (struct rt_spi_device *)rt_malloc(sizeof(struct rt_spi_device));
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RT_ASSERT(spi_device != RT_NULL);
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/* initialize the cs pin */
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result = rt_spi_bus_attach_device(spi_device, device_name, bus_name, (void*)ss_pin);
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if (result != RT_EOK)
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{
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LOG_E("%s attach to %s faild, %d", device_name, bus_name, result);
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result = RT_ERROR;
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}
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RT_ASSERT(result == RT_EOK);
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return result;
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}
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#define SPI_DEVICE_NAME "spi4x"
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#define TEST_STRING "liguan"
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static rt_uint8_t m_tx_buf[] = TEST_STRING; /**< TX buffer. */
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static int spi_sample(int argc, char *argv[])
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{
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struct rt_spi_device *spi_dev;
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char name[RT_NAME_MAX];
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rt_uint8_t w25x_read_id = 0x65;
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rt_uint8_t id[5] = {0};
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rt_hw_spi_device_attach("spi4", SPI_DEVICE_NAME, 11);
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struct rt_spi_configuration cfg;
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cfg.data_width = 8;
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cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB;
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cfg.max_hz = 20 * 1000 *1000; /* 20M */
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/* 查找 spi 设备获取设备句柄 */
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spi_dev = (struct rt_spi_device *)rt_device_find(SPI_DEVICE_NAME);
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if (!spi_dev)
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{
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rt_kprintf("spi sample run failed! can't find %s device!\n", name);
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}
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else
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{
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rt_spi_configure(spi_dev, &cfg);
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/* 方式1：使用 rt_spi_send_then_recv()发送命令读取ID */
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while(1)
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{ rt_spi_send(spi_dev, m_tx_buf, 6);rt_thread_mdelay(500);}
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//rt_kprintf("use rt_spi_send_then_recv() read w25q ID is:%x%x\n", id[3], id[4]);
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}
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return RT_EOK;
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}
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||||
MSH_CMD_EXPORT(spi_sample, spi sample);
|
||||
#endif /* BSP_USING_SPI0 || BSP_USING_SPI1 || BSP_USING_SPI2 */
|
||||
#else
|
||||
#if defined(BSP_USING_SPI0) || defined(BSP_USING_SPI1) || defined(BSP_USING_SPI2)
|
||||
static struct nrfx_drv_spi_config spi_config[] =
|
||||
{
|
||||
|
|
@ -292,4 +641,5 @@ rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name,
|
|||
}
|
||||
|
||||
#endif /* BSP_USING_SPI0 || BSP_USING_SPI1 || BSP_USING_SPI2 */
|
||||
#endif
|
||||
#endif /*BSP_USING_SPI*/
|
||||
|
|
|
|||
|
|
@ -1,11 +1,12 @@
|
|||
/*
|
||||
* Copyright (c) 2006-2022, RT-Thread Development Team
|
||||
* Copyright (c) 2006-2023, RT-Thread Development Team
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2020-05-19 Sherman first version
|
||||
* 2023-01-28 Andrew add Nrf5340 support
|
||||
*/
|
||||
|
||||
#include <rtthread.h>
|
||||
|
|
@ -16,6 +17,79 @@
|
|||
#define __DRV_SPI_H_
|
||||
|
||||
#ifdef BSP_USING_SPI
|
||||
#if defined(SOC_NRF5340)
|
||||
#include "nrfx_spim.h"
|
||||
|
||||
/**
|
||||
* @brief Attach the spi device to SPI bus, this function must be used after initialization.
|
||||
* @param bus_name spi bus name "spi0"/"spi1"/"spi2"
|
||||
* @param device_name spi device name "spi0x"/"spi1x"/"spi2x"
|
||||
* @param ss_pin spi ss pin number
|
||||
* @retval RT_ERROR / RT_EOK
|
||||
*/
|
||||
rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, rt_uint32_t ss_pin);
|
||||
|
||||
//SPI bus config
|
||||
#ifdef BSP_USING_SPI0
|
||||
#define NRFX_SPI0_CONFIG \
|
||||
{ \
|
||||
.bus_name = "spi0", \
|
||||
.spi = NRFX_SPIM_INSTANCE(0) \
|
||||
}
|
||||
#endif
|
||||
#ifdef BSP_USING_SPI1
|
||||
#define NRFX_SPI1_CONFIG \
|
||||
{ \
|
||||
.bus_name = "spi1", \
|
||||
.spi = NRFX_SPIM_INSTANCE(1) \
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef BSP_USING_SPI2
|
||||
#define NRFX_SPI2_CONFIG \
|
||||
{ \
|
||||
.bus_name = "spi2", \
|
||||
.spi = NRFX_SPIM_INSTANCE(2) \
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef BSP_USING_SPI3
|
||||
#define NRFX_SPI3_CONFIG \
|
||||
{ \
|
||||
.bus_name = "spi3", \
|
||||
.spi = NRFX_SPIM_INSTANCE(3) \
|
||||
}
|
||||
#endif
|
||||
#ifdef BSP_USING_SPI4
|
||||
#define NRFX_SPI4_CONFIG \
|
||||
{ \
|
||||
.bus_name = "spi4", \
|
||||
.spi = NRFX_SPIM_INSTANCE(4) \
|
||||
}
|
||||
#endif
|
||||
|
||||
struct nrfx_drv_spi_config
|
||||
{
|
||||
char *bus_name;
|
||||
nrfx_spim_t spi;
|
||||
};
|
||||
|
||||
struct nrfx_drv_spi
|
||||
{
|
||||
nrfx_spim_t spi; /* nrfx spi driver instance. */
|
||||
nrfx_spim_config_t spi_config; /* nrfx spi config Configuration */
|
||||
struct rt_spi_configuration *cfg;
|
||||
struct rt_spi_bus spi_bus;
|
||||
};
|
||||
|
||||
struct nrfx_drv_spi_pin_config
|
||||
{
|
||||
rt_uint8_t sck_pin;
|
||||
rt_uint8_t mosi_pin;
|
||||
rt_uint8_t miso_pin;
|
||||
rt_uint8_t ss_pin;
|
||||
};
|
||||
#else
|
||||
#include "nrfx_spi.h"
|
||||
|
||||
/**
|
||||
|
|
@ -72,6 +146,6 @@ struct nrfx_drv_spi_pin_config
|
|||
rt_uint8_t miso_pin;
|
||||
rt_uint8_t ss_pin;
|
||||
};
|
||||
|
||||
#endif
|
||||
#endif /* BSP_USING_SPI */
|
||||
#endif /*__DRV_SPI_H_*/
|
||||
|
|
|
|||
Loading…
Reference in New Issue