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pinmap: GPIO pin map added.

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* maa_gpio_init can take the IO number read physically off the board.
* maa_check_gpio will also set up mutiplexers if needed
* Intel Galileo Rev D board data added

Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
This commit is contained in:
Thomas Ingleby
2014-05-01 16:55:23 +01:00
parent d4427ec35e
commit e96df16f75
6 changed files with 224 additions and 24 deletions
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37
src/maa.c
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@@ -1,5 +1,6 @@
/*
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
@@ -25,10 +26,12 @@
#include <stddef.h>
#include "maa.h"
#include "intel_galileo_rev_d.h"
#include "gpio.h"
#include "version.h"
static maa_pininfo* pindata;
static maa_pininfo_t* pindata;
static maa_board_t* plat;
const char *
maa_get_version()
@@ -39,32 +42,38 @@ maa_get_version()
maa_result_t
maa_init()
{
return MAA_ERROR_FEATURE_NOT_IMPLEMENTED;
plat = maa_intel_galileo_rev_d();
return MAA_SUCCESS;
}
static maa_result_t
maa_setup_mux_mapped(maa_pininfo meta)
maa_setup_mux_mapped(maa_pininfo_t meta)
{
int mi;
for(mi = 0; mi < meta.mux_total; mi++) {
maa_gpio_context* mux_i;
mux_i = maa_gpio_init_raw(meta.mux[mi].pin);
maa_gpio_dir(mux_i, MAA_GPIO_OUT);
maa_gpio_write(mux_i, meta.mux[mi].value);
if(mux_i == NULL)
return MAA_ERROR_INVALID_HANDLE;
if(maa_gpio_dir(mux_i, MAA_GPIO_OUT) != MAA_SUCCESS)
return MAA_ERROR_INVALID_RESOURCE;
if(maa_gpio_write(mux_i, meta.mux[mi].value) != MAA_SUCCESS)
return MAA_ERROR_INVALID_RESOURCE;
}
return MAA_SUCCESS;
}
unsigned int
maa_check_gpio(int pin){
if(pindata == NULL) {
maa_check_gpio(int pin)
{
if(plat == NULL)
return -1;
}
//Check in gpio bounds?
if(pindata[pin].mux_total > 0)
if(maa_setup_mux_mapped(pindata[pin]) != MAA_SUCCESS)
return -1;
return pindata[pin].pin;
if(pin < 0 || pin > plat->gpio_count)
return -1;
if(plat->pins[pin].mux_total > 0)
if(maa_setup_mux_mapped(plat->pins[pin]) != MAA_SUCCESS)
return -1;
return plat->pins[pin].pin;
}