9b0131cb24
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
/*
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* wdt.h
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*
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* DSP-BIOS Bridge driver support functions for TI OMAP processors.
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*
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* IO dispatcher for a shared memory channel driver.
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*
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* Copyright (C) 2010 Texas Instruments, Inc.
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*
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* This package is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef __DSP_WDT3_H_
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#define __DSP_WDT3_H_
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/* WDT defines */
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#define OMAP3_WDT3_ISR_OFFSET 0x0018
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/**
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* struct dsp_wdt_setting - the basic dsp_wdt_setting structure
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* @reg_base: pointer to the base of the wdt registers
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* @sm_wdt: pointer to flags in shared memory
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* @wdt3_tasklet tasklet to manage wdt event
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* @fclk handle to wdt3 functional clock
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* @iclk handle to wdt3 interface clock
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*
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* This struct is used in the function to manage wdt3.
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*/
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struct dsp_wdt_setting {
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void __iomem *reg_base;
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struct shm *sm_wdt;
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struct tasklet_struct wdt3_tasklet;
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struct clk *fclk;
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struct clk *iclk;
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};
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/**
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* dsp_wdt_init() - initialize wdt3 module.
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*
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* This function initialize to wdt3 module, so that
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* other wdt3 function can be used.
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*/
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int dsp_wdt_init(void);
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/**
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* dsp_wdt_exit() - initialize wdt3 module.
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*
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* This function frees all resources allocated for wdt3 module.
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*/
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void dsp_wdt_exit(void);
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/**
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* dsp_wdt_enable() - enable/disable wdt3
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* @enable: bool value to enable/disable wdt3
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*
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* This function enables or disables wdt3 base on @enable value.
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*
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*/
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void dsp_wdt_enable(bool enable);
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/**
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* dsp_wdt_sm_set() - store pointer to the share memory
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* @data: pointer to dspbridge share memory
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*
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* This function is used to pass a valid pointer to share memory,
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* so that the flags can be set in order DSP side can read them.
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*
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*/
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void dsp_wdt_sm_set(void *data);
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#endif
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