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/*
* wdt.h
*
* DSP-BIOS Bridge driver support functions for TI OMAP processors.
*
* IO dispatcher for a shared memory channel driver.
*
* Copyright (C) 2010 Texas Instruments, Inc.
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef __DSP_WDT3_H_
#define __DSP_WDT3_H_
/* WDT defines */
#define OMAP3_WDT3_ISR_OFFSET 0x0018
/**
* struct dsp_wdt_setting - the basic dsp_wdt_setting structure
* @reg_base: pointer to the base of the wdt registers
* @sm_wdt: pointer to flags in shared memory
* @wdt3_tasklet tasklet to manage wdt event
* @fclk handle to wdt3 functional clock
* @iclk handle to wdt3 interface clock
*
* This struct is used in the function to manage wdt3.
*/
struct dsp_wdt_setting {
void __iomem *reg_base;
struct shm *sm_wdt;
struct tasklet_struct wdt3_tasklet;
struct clk *fclk;
struct clk *iclk;
};
/**
* dsp_wdt_init() - initialize wdt3 module.
*
* This function initialize to wdt3 module, so that
* other wdt3 function can be used.
*/
int dsp_wdt_init(void);
/**
* dsp_wdt_exit() - initialize wdt3 module.
*
* This function frees all resources allocated for wdt3 module.
*/
void dsp_wdt_exit(void);
/**
* dsp_wdt_enable() - enable/disable wdt3
* @enable: bool value to enable/disable wdt3
*
* This function enables or disables wdt3 base on @enable value.
*
*/
void dsp_wdt_enable(bool enable);
/**
* dsp_wdt_sm_set() - store pointer to the share memory
* @data: pointer to dspbridge share memory
*
* This function is used to pass a valid pointer to share memory,
* so that the flags can be set in order DSP side can read them.
*
*/
void dsp_wdt_sm_set(void *data);
#endif
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