spi.c
255 lines
| 4.2 KiB
| text/x-c
|
CLexer
r63 | /*------------------------------------------------------------------------------ | |||
-- This file is a part of the libuc, microcontroler library | ||||
-- Copyright (C) 2011, 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 | ||||
Jeandet Alexis
|
r64 | -- Mail : alexis.jeandet@member.fsf.org | ||
r63 | -------------------------------------------------------------------------------*/ | |||
#include <spi.h> | ||||
#include <gpio.h> | ||||
spi_t spiopen(int count) | ||||
{ | ||||
return -1; | ||||
} | ||||
spi_t spiopenandconfig(int count, uint32_t cfg, uint32_t speed, uint32_t MOSIpin, uint32_t MISOpin, uint32_t SCKpin, uint32_t SCSpin) | ||||
{ | ||||
spi_t dev = spiopen(count); | ||||
if(dev!=-1) | ||||
{ | ||||
spidisable(dev); | ||||
spisetpins(dev,MOSIpin, MISOpin, SCKpin, SCSpin); | ||||
spienable(dev); | ||||
spisetconfig(dev,cfg,speed); | ||||
} | ||||
return dev; | ||||
} | ||||
int spiclose(spi_t spidev) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return -1; | ||||
} | ||||
int spisetpins(spi_t spidev,uint32_t MOSIpin,uint32_t MISOpin,uint32_t SCKpin,uint32_t SCSpin) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return -1; | ||||
} | ||||
int spienable(spi_t spidev) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return -1; | ||||
} | ||||
int spidisable(spi_t spidev) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return -1; | ||||
} | ||||
int spisetconfig(spi_t spidev, uint32_t config, uint32_t speed) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 0; | ||||
} | ||||
return 1; | ||||
} | ||||
int spisetspeed(spi_t spidev, uint32_t speed) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return -1; | ||||
} | ||||
uint32_t spigetspeed(spi_t spidev) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 0; | ||||
} | ||||
return -1; | ||||
} | ||||
int spisetdatabits(spi_t spidev,spibits_t bitscnt) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 0; | ||||
} | ||||
return -1; | ||||
} | ||||
int spisetbitorder(spi_t spidev,spibitorder_t order) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return -1; | ||||
} | ||||
int spisetclkinhlevel(spi_t spidev,spiclkinhlvl_t level) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return -1; | ||||
} | ||||
int spisetclkphase(spi_t spidev,spiclkphase_t phase) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return -1; | ||||
} | ||||
int spiputw(spi_t spidev,uint16_t data) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 0; | ||||
} | ||||
return -1; | ||||
} | ||||
uint16_t spigetw(spi_t spidev) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 0; | ||||
} | ||||
return -1; | ||||
} | ||||
int spiputs(spi_t spidev,char* s) | ||||
{ | ||||
while (*s) spiputw(spidev,*s++); | ||||
return 1; | ||||
} | ||||
int spigets(spi_t spidev,char* s) | ||||
{ | ||||
do | ||||
{ | ||||
(*s) = spigetw(spidev); | ||||
} | ||||
while(*s++); | ||||
return 1; | ||||
} | ||||
int spiputnw(spi_t spidev,uint16_t* w,int n) | ||||
{ | ||||
while(n!=0) | ||||
{ | ||||
spiputw(spidev,*w++); | ||||
n--; | ||||
} | ||||
return 1; | ||||
} | ||||
int spigetnw(spi_t spidev,uint16_t* w,int n) | ||||
{ | ||||
while(n!=0) | ||||
{ | ||||
*w++=spigetw(spidev); | ||||
n--; | ||||
} | ||||
return 1; | ||||
} | ||||
int spiputnc(spi_t spidev,char* c,int n) | ||||
{ | ||||
while(n!=0) | ||||
{ | ||||
spiputw(spidev,*c++); | ||||
n--; | ||||
} | ||||
return 1; | ||||
} | ||||
int spigetnc(spi_t spidev,char* c,int n) | ||||
{ | ||||
while(n!=0) | ||||
{ | ||||
*c++=spigetw(spidev); | ||||
n--; | ||||
} | ||||
return 1; | ||||
} | ||||
int spiavailiabledata(spi_t spidev) | ||||
{ | ||||
return 0; | ||||
} | ||||
int spitransactionfinished(spi_t spidev) | ||||
{ | ||||
if((spidev<3)&&(spidev>=0)) | ||||
{ | ||||
return 1; | ||||
} | ||||
return 0; | ||||
} | ||||