111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
/*
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* File : stm32f20x_40x_spi.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2009 RT-Thread Develop Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2012-01-01 aozima first implementation.
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* 2012-07-27 aozima fixed variable uninitialized.
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*/
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#include <board.h>
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#include "drv_spi.h"
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#include "spi_flash.h"
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#ifdef RT_USING_SFUD
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#include "spi_flash_sfud.h"
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#endif
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#ifdef RT_USING_W25QXX
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#include "spi_flash_w25qxx.h"
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#endif
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#include <rthw.h>
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#include <finsh.h>
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#if defined(RT_USING_SFUD) && defined(RT_USING_W25QXX)
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#error "RT_USING_SFUD and RT_USING_W25QXX only need one"
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#endif
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#define SPI_BUS_NAME "spi1"
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#define SPI_FLASH_DEVICE_NAME "spi10"
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#define SPI_FLASH_CHIP "W25Q64"
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static int rt_hw_spi1_init(void)
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{
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/* register spi bus */
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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rt_err_t result;
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__HAL_RCC_GPIOB_CLK_ENABLE();
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GPIO_InitStructure.Pin = GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5;
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GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStructure.Alternate = GPIO_AF5_SPI1;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
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result = stm32_spi_bus_register(SPI1, SPI_BUS_NAME);
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if (result != RT_EOK)
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{
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return result;
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}
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}
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/* attach cs */
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{
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static struct rt_spi_device spi_device;
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static struct stm32_spi_cs spi_cs;
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rt_err_t result;
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GPIO_InitTypeDef GPIO_InitStructure;
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__HAL_RCC_GPIOD_CLK_ENABLE();
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spi_cs.GPIOx = GPIOD;
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spi_cs.GPIO_Pin = GPIO_PIN_13;
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GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStructure.Pull = GPIO_PULLUP;
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GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
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GPIO_InitStructure.Pin = spi_cs.GPIO_Pin;
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HAL_GPIO_Init(spi_cs.GPIOx, &GPIO_InitStructure);
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HAL_GPIO_WritePin(spi_cs.GPIOx, spi_cs.GPIO_Pin, GPIO_PIN_SET);
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result = rt_spi_bus_attach_device(&spi_device, SPI_FLASH_DEVICE_NAME, SPI_BUS_NAME, (void*)&spi_cs);
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if (result != RT_EOK)
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{
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return result;
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}
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}
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return RT_EOK;
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}
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INIT_DEVICE_EXPORT(rt_hw_spi1_init);
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#ifdef RT_USING_SFUD
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static int rt_hw_spi_flash_with_sfud_init(void)
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{
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if (RT_NULL == rt_sfud_flash_probe(SPI_FLASH_CHIP, SPI_FLASH_DEVICE_NAME))
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{
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return RT_ERROR;
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};
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return RT_EOK;
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}
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INIT_COMPONENT_EXPORT(rt_hw_spi_flash_with_sfud_init)
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#endif
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#ifdef RT_USING_W25QXX
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static int rt_hw_spi_flash_init(void)
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{
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return w25qxx_init(SPI_FLASH_CHIP, SPI_FLASH_DEVICE_NAME);
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}
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INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init)
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#endif
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