135 lines
3.2 KiB
C
135 lines
3.2 KiB
C
/*
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* This file is part of FH8620 BSP for RT-Thread distribution.
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*
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* Copyright (c) 2016 Shanghai Fullhan Microelectronics Co., Ltd.
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* All rights reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Visit http://www.fullhan.com to get contact with Fullhan.
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*
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* Change Logs:
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* Date Author Notes
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*/
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#ifndef SSI_H_
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#define SSI_H_
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#include "libraries/inc/fh_driverlib.h"
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#include <drivers/spi.h>
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#include <rtdevice.h>
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#include "fh_dma.h"
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#define SPI_PRIV(drv) ( (struct fh_spi_obj)(drv->priv) )
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#define FH_SPI_SLAVE_MAX_NO 2
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struct spi_controller;
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//platform use below
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struct spi_slave_platform_data{
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rt_uint32_t cs_pin;
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#define ACTIVE_LOW 1
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#define ACTIVE_HIGH 2
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rt_uint32_t actice_level;
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};
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struct spi_control_platform_data{
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rt_uint32_t id;
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rt_uint32_t irq;
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rt_uint32_t base;
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rt_uint32_t max_hz;
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rt_uint32_t slave_no;
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rt_uint32_t clk_in;
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//handshake no...
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rt_uint32_t rx_hs_no;
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rt_uint32_t tx_hs_no;
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char *dma_name;
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//isr will be the default...
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#define USE_ISR_TRANSFER 0
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#define USE_DMA_TRANSFER 1
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rt_uint32_t transfer_mode;
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struct spi_controller *control;
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struct spi_slave_platform_data plat_slave[FH_SPI_SLAVE_MAX_NO];
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};
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struct spi_controller;
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//driver use below.......
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struct spi_slave_info
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{
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struct rt_spi_device spi_device;
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struct spi_controller *control;
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struct spi_slave_platform_data plat_slave;
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rt_uint32_t id;
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//spi control will use to find all the slave info..
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struct spi_slave_info *next;
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};
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struct spi_dma
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{
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char *dma_name;
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#define DMA_BIND_OK 0
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#define DMA_BIND_ERROR 1
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rt_uint32_t dma_flag;
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//bind to the dma dev..
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rt_uint32_t rx_hs;
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rt_uint32_t tx_hs;
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rt_uint8_t *rx_dummy_buff;
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rt_uint8_t *tx_dummy_buff;
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struct rt_dma_device *dma_dev;
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struct dma_transfer tx_trans;
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struct dma_transfer rx_trans;
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struct spi_controller *control;
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};
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struct spi_controller
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{
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rt_uint32_t id;
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rt_uint32_t irq;
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rt_uint32_t base;
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rt_uint32_t max_hz;
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rt_uint32_t slave_no;
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rt_uint32_t clk_in;
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//bind to the platform data....
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struct spi_control_platform_data *plat_data;
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//rt_uint32_t dma_xfer_flag;
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#define XFER_USE_ISR 0
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#define XFER_USE_DMA 1
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rt_uint32_t xfer_mode;
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struct spi_dma dma;
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rt_uint32_t dma_complete_times;
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struct rt_spi_bus spi_bus;
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struct spi_slave_info *spi_slave;
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struct rt_spi_message* current_message;
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struct rt_completion transfer_completion;
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struct rt_semaphore xfer_lock;
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struct fh_spi_obj obj;
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rt_uint32_t received_len;
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rt_uint32_t transfered_len;
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void* priv;
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};
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void rt_hw_spi_init(void);
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#endif /* SPI_H_ */
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