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1 | /* |
2 | * omap_device headers | |
3 | * | |
4 | * Copyright (C) 2009 Nokia Corporation | |
5 | * Paul Walmsley | |
6 | * | |
7 | * Developed in collaboration with (alphabetical order): Benoit | |
8 | * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram | |
9 | * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard | |
10 | * Woodruff | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | * | |
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16 | * This type of functionality should be implemented as a proper |
17 | * omap_bus/omap_device in Linux. | |
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18 | * |
19 | * omap_device differs from omap_hwmod in that it includes external | |
20 | * (e.g., board- and system-level) integration details. omap_hwmod | |
21 | * stores hardware data that is invariant for a given OMAP chip. | |
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22 | */ |
23 | #ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H | |
24 | #define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H | |
25 | ||
26 | #include <linux/kernel.h> | |
27 | #include <linux/platform_device.h> | |
28 | ||
2a296c8f | 29 | #include "omap_hwmod.h" |
b04b65ab | 30 | |
3ec2decb | 31 | extern struct dev_pm_domain omap_device_pm_domain; |
f5c33b07 | 32 | extern struct dev_pm_domain omap_device_fail_pm_domain; |
0d5e8252 | 33 | |
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34 | /* omap_device._state values */ |
35 | #define OMAP_DEVICE_STATE_UNKNOWN 0 | |
36 | #define OMAP_DEVICE_STATE_ENABLED 1 | |
37 | #define OMAP_DEVICE_STATE_IDLE 2 | |
38 | #define OMAP_DEVICE_STATE_SHUTDOWN 3 | |
39 | ||
c03f007a | 40 | /* omap_device.flags values */ |
c1d1cd59 | 41 | #define OMAP_DEVICE_SUSPENDED BIT(0) |
c03f007a | 42 | |
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43 | /** |
44 | * struct omap_device - omap_device wrapper for platform_devices | |
45 | * @pdev: platform_device | |
46 | * @hwmods: (one .. many per omap_device) | |
47 | * @hwmods_cnt: ARRAY_SIZE() of @hwmods | |
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48 | * @_state: one of OMAP_DEVICE_STATE_* (see above) |
49 | * @flags: device flags | |
e753345b | 50 | * @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h> |
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51 | * |
52 | * Integrates omap_hwmod data into Linux platform_device. | |
53 | * | |
54 | * Field names beginning with underscores are for the internal use of | |
55 | * the omap_device code. | |
56 | * | |
57 | */ | |
58 | struct omap_device { | |
d66b3fe4 | 59 | struct platform_device *pdev; |
b04b65ab | 60 | struct omap_hwmod **hwmods; |
e753345b | 61 | unsigned long _driver_status; |
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62 | u8 hwmods_cnt; |
63 | u8 _state; | |
c03f007a | 64 | u8 flags; |
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65 | }; |
66 | ||
67 | /* Device driver interface (call via platform_data fn ptrs) */ | |
68 | ||
69 | int omap_device_enable(struct platform_device *pdev); | |
70 | int omap_device_idle(struct platform_device *pdev); | |
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71 | |
72 | /* Core code interface */ | |
73 | ||
3528c58e | 74 | struct platform_device *omap_device_build(const char *pdev_name, int pdev_id, |
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75 | struct omap_hwmod *oh, void *pdata, |
76 | int pdata_len); | |
b04b65ab | 77 | |
3528c58e | 78 | struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id, |
b04b65ab | 79 | struct omap_hwmod **oh, int oh_cnt, |
c1d1cd59 | 80 | void *pdata, int pdata_len); |
b04b65ab | 81 | |
993e4fbd | 82 | struct omap_device *omap_device_alloc(struct platform_device *pdev, |
c1d1cd59 | 83 | struct omap_hwmod **ohs, int oh_cnt); |
993e4fbd OBC |
84 | void omap_device_delete(struct omap_device *od); |
85 | int omap_device_register(struct platform_device *pdev); | |
86 | ||
1f8a7d52 | 87 | struct device *omap_device_get_by_hwmod_name(const char *oh_name); |
db2a60bf | 88 | |
b04b65ab | 89 | /* OMAP PM interface */ |
fc013873 | 90 | int omap_device_get_context_loss_count(struct platform_device *pdev); |
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91 | |
92 | /* Other */ | |
93 | ||
8bb9fde2 ORL |
94 | int omap_device_assert_hardreset(struct platform_device *pdev, |
95 | const char *name); | |
96 | int omap_device_deassert_hardreset(struct platform_device *pdev, | |
97 | const char *name); | |
b04b65ab | 98 | |
a470c42c | 99 | /* Get omap_device pointer from platform_device pointer */ |
d66b3fe4 KH |
100 | static inline struct omap_device *to_omap_device(struct platform_device *pdev) |
101 | { | |
102 | return pdev ? pdev->archdata.od : NULL; | |
103 | } | |
a470c42c | 104 | #endif |