101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
|
/*
|
|||
|
|
* File : ls1c_spi.h
|
|||
|
|
* This file is part of RT-Thread RTOS
|
|||
|
|
* COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
|
|||
|
|
*
|
|||
|
|
* This program is free software; you can redistribute it and/or modify
|
|||
|
|
* it under the terms of the GNU General Public License as published by
|
|||
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|||
|
|
* (at your option) any later version.
|
|||
|
|
*
|
|||
|
|
* This program is distributed in the hope that it will be useful,
|
|||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|||
|
|
* GNU General Public License for more details.
|
|||
|
|
*
|
|||
|
|
* You should have received a copy of the GNU General Public License along
|
|||
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|||
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|||
|
|
*
|
|||
|
|
* Change Logs:
|
|||
|
|
* Date Author Notes
|
|||
|
|
* 2017-10-23 <EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD> first version
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
// Ӳ<><D3B2>spi<70>ӿڵ<D3BF>ͷ<EFBFBD>ļ<EFBFBD>
|
|||
|
|
|
|||
|
|
#ifndef __OPENLOONGSON_SPI_H
|
|||
|
|
#define __OPENLOONGSON_SPI_H
|
|||
|
|
|
|||
|
|
|
|||
|
|
// SPIģ<49><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|||
|
|
typedef enum
|
|||
|
|
{
|
|||
|
|
LS1C_SPI_0 = 0,
|
|||
|
|
LS1C_SPI_1,
|
|||
|
|
}ls1c_spi_t;
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Ƭѡ
|
|||
|
|
#define LS1C_SPI_INVALID_CS (-1)
|
|||
|
|
#define LS1C_SPI_CS_0 (0)
|
|||
|
|
#define LS1C_SPI_CS_1 (1)
|
|||
|
|
#define LS1C_SPI_CS_2 (2)
|
|||
|
|
#define LS1C_SPI_CS_3 (3)
|
|||
|
|
|
|||
|
|
// ʱ<>Ӽ<EFBFBD><D3BC>Ժ<EFBFBD><D4BA><EFBFBD>λ
|
|||
|
|
#define SPI_CPOL_1 (1)
|
|||
|
|
#define SPI_CPOL_0 (0)
|
|||
|
|
#define SPI_CPHA_1 (1)
|
|||
|
|
#define SPI_CPHA_0 (0)
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Ӳ<><D3B2>SPI<50><49>Ϣ
|
|||
|
|
typedef struct
|
|||
|
|
{
|
|||
|
|
ls1c_spi_t SPIx; // SPIģ<49><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|||
|
|
unsigned long max_speed_hz; // <20><><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>ٶȣ<D9B6><C8A3><EFBFBD>λhz
|
|||
|
|
unsigned char cs; // Ƭѡ
|
|||
|
|
unsigned char cpol; // ʱ<>Ӽ<EFBFBD><D3BC><EFBFBD>
|
|||
|
|
unsigned char cpha; // ʱ<><CAB1><EFBFBD><EFBFBD>λ
|
|||
|
|
}ls1c_spi_info_t;
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>SPIģ<EFBFBD><EFBFBD>
|
|||
|
|
* @spi_info_p SPIģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
|
|||
|
|
*/
|
|||
|
|
void spi_init(ls1c_spi_info_t *spi_info_p);
|
|||
|
|
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>ƬѡΪָ<EFBFBD><EFBFBD>״̬
|
|||
|
|
* @spi_info_p SPIģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
|
|||
|
|
* @new_status Ƭѡ<EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>ȡֵΪ0<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD>ƽ<EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ƽ
|
|||
|
|
*/
|
|||
|
|
void spi_set_cs(ls1c_spi_info_t *spi_info_p, int new_status);
|
|||
|
|
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* ͨ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>SPI<EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
|
|||
|
|
* ע<EFBFBD>⣬<EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>У<EFBFBD><EFBFBD>˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>⡣
|
|||
|
|
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD>ں<EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>豸<EFBFBD>շ<EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>ֽڵĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD>SPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵĴ<EFBFBD><EFBFBD>豸ͨ<EFBFBD><EFBFBD>
|
|||
|
|
* <EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>о1c<EFBFBD><EFBFBD>ÿ·SPI<EFBFBD>Ͽ<EFBFBD><EFBFBD>ܽ<EFBFBD><EFBFBD>в<EFBFBD>ͬ<EFBFBD>Ĵ<EFBFBD><EFBFBD>豸<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>Ƶ<EFBFBD>ʡ<EFBFBD>ģʽ<EFBFBD>ȿ<EFBFBD><EFBFBD>ܲ<EFBFBD>ͬ
|
|||
|
|
* @spi_info_p SPI<EFBFBD>ӿ<EFBFBD>
|
|||
|
|
* @tx_ch <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|||
|
|
* @ret <EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|||
|
|
*/
|
|||
|
|
unsigned char spi_txrx_byte(ls1c_spi_info_t *spi_info_p, unsigned char tx_ch);
|
|||
|
|
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* <EFBFBD><EFBFBD>ӡָ<EFBFBD><EFBFBD>SPIģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>мĴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
|
|||
|
|
* @spi_info_p SPIģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
|
|||
|
|
*/
|
|||
|
|
void spi_print_all_regs_info(ls1c_spi_info_t *spi_info_p);
|
|||
|
|
|
|||
|
|
|
|||
|
|
#endif
|
|||
|
|
|