1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (c) 2013 Google, Inc
6 #ifndef __SANDBOX_SDL_H
7 #define __SANDBOX_SDL_H
11 #ifdef CONFIG_SANDBOX_SDL
14 * sandbox_sdl_init_display() - Set up SDL video ready for use
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.
23 int sandbox_sdl_init_display(int width, int height, int log2_bpp);
26 * sandbox_sdl_sync() - Sync current U-Boot LCD frame buffer to SDL
28 * This must be called periodically to update the screen for SDL so that the
31 * @lcd_base: Base of frame buffer
32 * @return 0 if screen was updated, -ENODEV is there is no screen.
34 int sandbox_sdl_sync(void *lcd_base);
37 * sandbox_sdl_scan_keys() - scan for pressed keys
39 * Works out which keys are pressed and returns a list
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
45 int sandbox_sdl_scan_keys(int key[], int max_keys);
48 * sandbox_sdl_key_pressed() - check if a particular key is pressed
50 * @keycode: Keycode to check (KEY_... - see include/linux/input.h
51 * @return 0 if pressed, -ENOENT if not pressed. -ENODEV if keybord not
54 int sandbox_sdl_key_pressed(int keycode);
57 * sandbox_sdl_sound_start() - start playing a sound
59 * @frequency: Frequency of sounds in Hertz
60 * @return 0 if OK, -ENODEV if no sound is available
62 int sandbox_sdl_sound_start(uint frequency);
65 * sandbox_sdl_sound_stop() - stop playing a sound
67 * @return 0 if OK, -ENODEV if no sound is available
69 int sandbox_sdl_sound_stop(void);
72 * sandbox_sdl_sound_init() - set up the sound system
74 * @return 0 if OK, -ENODEV if no sound is available
76 int sandbox_sdl_sound_init(void);
79 static inline int sandbox_sdl_init_display(int width, int height,
85 static inline int sandbox_sdl_sync(void *lcd_base)
90 static inline int sandbox_sdl_scan_keys(int key[], int max_keys)
95 static inline int sandbox_sdl_key_pressed(int keycode)
100 static inline int sandbox_sdl_sound_start(uint frequency)
105 static inline int sandbox_sdl_sound_stop(void)
110 static inline int sandbox_sdl_sound_init(void)