spi.h
150 lines
| 3.7 KiB
| text/x-c
|
CLexer
r47 | /*------------------------------------------------------------------------------ | |||
-- This file is a part of the libuc, microcontroler library | ||||
-- Copyright (C) 2012, Alexis Jeandet | ||||
-- | ||||
-- 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 3 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||||
------------------------------------------------------------------------------- | ||||
-- Author : Alexis Jeandet | ||||
-- Mail : alexis.jeandet@gmail.com | ||||
-------------------------------------------------------------------------------*/ | ||||
/* | ||||
TODO: | ||||
Add SPI slave mode | ||||
Add interrupt interface | ||||
*/ | ||||
#ifndef SPI_H | ||||
#define SPI_H | ||||
#include <stdint.h> | ||||
#include <uhandle.h> | ||||
#ifdef __cplusplus | ||||
extern "C" { | ||||
#endif | ||||
/* | ||||
typedef struct spi_t | ||||
{ | ||||
void* _dev; | ||||
int cfg; | ||||
int speed; | ||||
}spi_t;*/ | ||||
typedef int spi_t; | ||||
r53 | #define spi1 ((spi_t)0) | |||
#define spi2 ((spi_t)1) | ||||
#define spi3 ((spi_t)2) | ||||
#define spi4 ((spi_t)3) | ||||
#define spi5 ((spi_t)4) | ||||
#define spi6 ((spi_t)5) | ||||
#define spi7 ((spi_t)6) | ||||
#define spi8 ((spi_t)7) | ||||
#define spi9 ((spi_t)8) | ||||
r47 | ||||
typedef enum | ||||
{ | ||||
spi4bits = 0x3, | ||||
spi5bits = 0x4, | ||||
spi6bits = 0x5, | ||||
spi7bits = 0x6, | ||||
spi8bits = 0x7, | ||||
spi9bits = 0x8, | ||||
spi10bits = 0x9, | ||||
spi11bits = 0xA, | ||||
spi12bits = 0xB, | ||||
spi13bits = 0xC, | ||||
spi14bits = 0xD, | ||||
spi15bits = 0xE, | ||||
spi16bits = 0xF | ||||
}spibits_t; | ||||
#define SPIBITSMASK 0xF | ||||
typedef enum | ||||
{ | ||||
spislave = 0x00, | ||||
spimaster = 0x10 | ||||
}spimode_t; | ||||
#define SPIMODEMASK 0x10 | ||||
typedef enum | ||||
{ | ||||
spiclkinhlow = 0x00, | ||||
spiclkinhhigh = 0x20 | ||||
}spiclkinhlvl_t; | ||||
#define SPICLKINHLVLMASK 0x20 | ||||
typedef enum | ||||
{ | ||||
spiclkfirstedge = 0x00, | ||||
spiclksecondedge = 0x40 | ||||
}spiclkphase_t; | ||||
#define SPICLKPHASEMASK 0x40 | ||||
typedef enum | ||||
{ | ||||
spimsbfirst = 0x00, | ||||
spilsbfirst = 0x80 | ||||
}spibitorder_t; | ||||
#define SPIBITORDERMASK 0x80 | ||||
extern spi_t spiopen(int count); | ||||
extern spi_t spiopenandconfig(int count,uint32_t cfg,uint32_t speed,uint32_t MOSIpin,uint32_t MISOpin,uint32_t SCKpin,uint32_t SCSpin); | ||||
extern int spiclose(spi_t spidev); | ||||
extern int spisetpins(spi_t spidev,uint32_t MOSIpin,uint32_t MISOpin,uint32_t SCKpin,uint32_t SCSpin); | ||||
extern int spienable(spi_t spidev); | ||||
extern int spidisable(spi_t spidev); | ||||
r53 | extern int spitransactionfinished(spi_t spidev); | |||
r47 | extern int spisetconfig(spi_t spidev,uint32_t config,uint32_t speed); | |||
extern int spisetspeed(spi_t spidev, uint32_t speed); | ||||
r60 | extern uint32_t spigetspeed(spi_t spidev); | |||
r47 | extern int spisetbitorder(spi_t spidev,spibitorder_t order); | |||
extern int spisetdatabits(spi_t spidev,spibits_t bitscnt); | ||||
extern int spisetclkinhlevel(spi_t spidev,spiclkinhlvl_t level); | ||||
extern int spisetclkphase(spi_t spidev,spiclkphase_t phase); | ||||
extern int spiputw(spi_t spidev,uint16_t data); | ||||
extern uint16_t spigetw(spi_t spidev); | ||||
extern int spiputs(spi_t spidev,char* s); | ||||
extern int spigets(spi_t spidev,char* s); | ||||
extern int spiputnw(spi_t spidev,uint16_t* w,int n); | ||||
extern int spigetnw(spi_t spidev,uint16_t* w,int n); | ||||
extern int spiputnc(spi_t spidev,char* c,int n); | ||||
extern int spigetnc(spi_t spidev,char* c,int n); | ||||
extern int spiavailiabledata(spi_t spidev); | ||||
#ifdef __cplusplus | ||||
} | ||||
#endif | ||||
#endif //SPI_H | ||||