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83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
bbc09bf2 SG |
2 | /* |
3 | * Copyright (c) 2013 Google, Inc | |
bbc09bf2 SG |
4 | */ |
5 | ||
6 | #ifndef __SANDBOX_SDL_H | |
7 | #define __SANDBOX_SDL_H | |
8 | ||
9 | #include <errno.h> | |
10 | ||
11 | #ifdef CONFIG_SANDBOX_SDL | |
12 | ||
13 | /** | |
14 | * sandbox_sdl_init_display() - Set up SDL video ready for use | |
15 | * | |
16 | * @width: Window width in pixels | |
17 | * @height Window height in pixels | |
18 | * @log2_bpp: Log to base 2 of the number of bits per pixel. So a 32bpp | |
19 | * display will pass 5, since 2*5 = 32 | |
20 | * @return 0 if OK, -ENODEV if no device, -EIO if SDL failed to initialize | |
21 | * and -EPERM if the video failed to come up. | |
22 | */ | |
23 | int sandbox_sdl_init_display(int width, int height, int log2_bpp); | |
24 | ||
25 | /** | |
26 | * sandbox_sdl_sync() - Sync current U-Boot LCD frame buffer to SDL | |
27 | * | |
28 | * This must be called periodically to update the screen for SDL so that the | |
29 | * user can see it. | |
30 | * | |
31 | * @lcd_base: Base of frame buffer | |
32 | * @return 0 if screen was updated, -ENODEV is there is no screen. | |
33 | */ | |
34 | int sandbox_sdl_sync(void *lcd_base); | |
35 | ||
36 | /** | |
37 | * sandbox_sdl_scan_keys() - scan for pressed keys | |
38 | * | |
39 | * Works out which keys are pressed and returns a list | |
40 | * | |
41 | * @key: Array to receive keycodes | |
42 | * @max_keys: Size of array | |
43 | * @return number of keycodes found, 0 if none, -ENODEV if no keyboard | |
44 | */ | |
45 | int sandbox_sdl_scan_keys(int key[], int max_keys); | |
46 | ||
47 | /** | |
48 | * sandbox_sdl_key_pressed() - check if a particular key is pressed | |
49 | * | |
50 | * @keycode: Keycode to check (KEY_... - see include/linux/input.h | |
51 | * @return 0 if pressed, -ENOENT if not pressed. -ENODEV if keybord not | |
52 | * available, | |
53 | */ | |
54 | int sandbox_sdl_key_pressed(int keycode); | |
55 | ||
56 | /** | |
f2b25c9b | 57 | * sandbox_sdl_sound_play() - Play a sound |
bbc09bf2 | 58 | * |
f2b25c9b SG |
59 | * @data: Data to play (typically 16-bit) |
60 | * @count: Number of bytes in data | |
bbc09bf2 | 61 | */ |
f2b25c9b | 62 | int sandbox_sdl_sound_play(const void *data, uint count); |
bbc09bf2 SG |
63 | |
64 | /** | |
65 | * sandbox_sdl_sound_stop() - stop playing a sound | |
66 | * | |
67 | * @return 0 if OK, -ENODEV if no sound is available | |
68 | */ | |
69 | int sandbox_sdl_sound_stop(void); | |
70 | ||
71 | /** | |
72 | * sandbox_sdl_sound_init() - set up the sound system | |
73 | * | |
74 | * @return 0 if OK, -ENODEV if no sound is available | |
75 | */ | |
76 | int sandbox_sdl_sound_init(void); | |
77 | ||
78 | #else | |
79 | static inline int sandbox_sdl_init_display(int width, int height, | |
80 | int log2_bpp) | |
81 | { | |
82 | return -ENODEV; | |
83 | } | |
84 | ||
85 | static inline int sandbox_sdl_sync(void *lcd_base) | |
86 | { | |
87 | return -ENODEV; | |
88 | } | |
89 | ||
90 | static inline int sandbox_sdl_scan_keys(int key[], int max_keys) | |
91 | { | |
92 | return -ENODEV; | |
93 | } | |
94 | ||
95 | static inline int sandbox_sdl_key_pressed(int keycode) | |
96 | { | |
97 | return -ENODEV; | |
98 | } | |
99 | ||
100 | static inline int sandbox_sdl_sound_start(uint frequency) | |
101 | { | |
102 | return -ENODEV; | |
103 | } | |
104 | ||
f2b25c9b SG |
105 | int sandbox_sdl_sound_play(const void *data, uint count) |
106 | { | |
107 | return -ENODEV; | |
108 | } | |
109 | ||
bbc09bf2 SG |
110 | static inline int sandbox_sdl_sound_stop(void) |
111 | { | |
112 | return -ENODEV; | |
113 | } | |
114 | ||
115 | static inline int sandbox_sdl_sound_init(void) | |
116 | { | |
117 | return -ENODEV; | |
118 | } | |
119 | ||
120 | #endif | |
121 | ||
122 | #endif |