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6280238c ORL |
1 | /* |
2 | * wdt.h | |
3 | * | |
4 | * DSP-BIOS Bridge driver support functions for TI OMAP processors. | |
5 | * | |
6 | * IO dispatcher for a shared memory channel driver. | |
7 | * | |
8 | * Copyright (C) 2010 Texas Instruments, Inc. | |
9 | * | |
10 | * This package is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
15 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
16 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
17 | */ | |
18 | #ifndef __DSP_WDT3_H_ | |
19 | #define __DSP_WDT3_H_ | |
20 | ||
21 | /* WDT defines */ | |
22 | #define OMAP3_WDT3_ISR_OFFSET 0x0018 | |
23 | ||
24 | ||
25 | /** | |
26 | * struct dsp_wdt_setting - the basic dsp_wdt_setting structure | |
27 | * @reg_base: pointer to the base of the wdt registers | |
28 | * @sm_wdt: pointer to flags in shared memory | |
29 | * @wdt3_tasklet tasklet to manage wdt event | |
30 | * @fclk handle to wdt3 functional clock | |
31 | * @iclk handle to wdt3 interface clock | |
32 | * | |
33 | * This struct is used in the function to manage wdt3. | |
34 | */ | |
35 | ||
36 | struct dsp_wdt_setting { | |
37 | void __iomem *reg_base; | |
38 | struct shm *sm_wdt; | |
39 | struct tasklet_struct wdt3_tasklet; | |
40 | struct clk *fclk; | |
41 | struct clk *iclk; | |
42 | }; | |
43 | ||
44 | /** | |
45 | * dsp_wdt_init() - initialize wdt3 module. | |
46 | * | |
47 | * This function initilize to wdt3 module, so that | |
48 | * other wdt3 function can be used. | |
49 | */ | |
50 | int dsp_wdt_init(void); | |
51 | ||
52 | /** | |
53 | * dsp_wdt_exit() - initialize wdt3 module. | |
54 | * | |
55 | * This function frees all resources allocated for wdt3 module. | |
56 | */ | |
57 | void dsp_wdt_exit(void); | |
58 | ||
59 | /** | |
60 | * dsp_wdt_enable() - enable/disable wdt3 | |
61 | * @enable: bool value to enable/disable wdt3 | |
62 | * | |
63 | * This function enables or disables wdt3 base on @enable value. | |
64 | * | |
65 | */ | |
66 | void dsp_wdt_enable(bool enable); | |
67 | ||
68 | /** | |
69 | * dsp_wdt_sm_set() - store pointer to the share memory | |
70 | * @data: pointer to dspbridge share memory | |
71 | * | |
72 | * This function is used to pass a valid pointer to share memory, | |
73 | * so that the flags can be set in order DSP side can read them. | |
74 | * | |
75 | */ | |
76 | void dsp_wdt_sm_set(void *data); | |
77 | ||
78 | #endif | |
79 |