#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <asm/prom.h>
#include <linux/avm_hw_config.h>
#include <mach/avm_gpio.h>
#include <linux/gpio.h>


/*------------------------------------------------------------------------------------------*\
\*------------------------------------------------------------------------------------------*/
struct _avm_hw_config *avm_current_hw_config = NULL;
EXPORT_SYMBOL(avm_current_hw_config);

/*------------------------------------------------------------------------------------------*\
\*------------------------------------------------------------------------------------------*/
struct _avm_hw_config *avm_get_hw_config_table(void)
{
    //set externally to table generated by device tree
    if(avm_current_hw_config) {
        return avm_current_hw_config;
    }
    pr_err("Error: GPIO Config Table not set from Device Tree\n");
    prom_printf("[%s] error: No hardware configuration found\n", __FUNCTION__);
    BUG_ON(1);
    return NULL;
}
EXPORT_SYMBOL(avm_get_hw_config_table);

/*------------------------------------------------------------------------------------------*\
\*------------------------------------------------------------------------------------------*/
int init_gpio_config(void) 
{
    struct _avm_hw_config *config;
    
    config = avm_get_hw_config_table();
    if(!config)
        return -1; // error: no hardware config found!
 
    // Hier gibt es nichts zu initialisieren. Das passiert in
    // avm_gpio.c / avm_gpio_init (device_initcall)

    return 0;
}