diff options
Diffstat (limited to 'drivers/staging/tidspbridge/include/dspbridge/wdt.h')
| -rw-r--r-- | drivers/staging/tidspbridge/include/dspbridge/wdt.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/staging/tidspbridge/include/dspbridge/wdt.h b/drivers/staging/tidspbridge/include/dspbridge/wdt.h new file mode 100644 index 000000000000..4c00ba5fa5bf --- /dev/null +++ b/drivers/staging/tidspbridge/include/dspbridge/wdt.h @@ -0,0 +1,79 @@ +/* + * 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 initilize 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 + |