1 /*
2  * (C) Copyright 2012,2015 Stephen Warren
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #ifndef _BCM2835_MSG_H
8 #define _BCM2835_MSG_H
9 
10 /**
11  * bcm2835_power_on_module() - power on an SoC module
12  *
13  * @module: ID of module to power on (BCM2835_MBOX_POWER_DEVID_...)
14  * @return 0 if OK, -EIO on error
15  */
16 int bcm2835_power_on_module(u32 module);
17 
18 /**
19  * bcm2835_get_mmc_clock() - get the frequency of the MMC clock
20  *
21  * @return clock frequency, or -ve on error
22  */
23 int bcm2835_get_mmc_clock(void);
24 
25 /**
26  * bcm2835_get_video_size() - get the current display size
27  *
28  * @widthp: Returns the width in pixels
29  * @heightp: Returns the height in pixels
30  * @return 0 if OK, -ve on error
31  */
32 int bcm2835_get_video_size(int *widthp, int *heightp);
33 
34 /**
35  * bcm2835_set_video_params() - set the video parameters
36  *
37  * @widthp: Video width to request (returns the actual width selected)
38  * @heightp: Video height to request (returns the actual height selected)
39  * @depth_bpp: Requested bit depth
40  * @pixel_order: Pixel order to use (BCM2835_MBOX_PIXEL_ORDER_...)
41  * @alpha_mode: Alpha transparency mode to use (BCM2835_MBOX_ALPHA_MODE_...)
42  * @fb_basep: Returns base address of frame buffer
43  * @fb_sizep: Returns size of frame buffer
44  * @pitchp: Returns number of bytes in each frame buffer line
45  * @return 0 if OK, -ve on error
46  */
47 int bcm2835_set_video_params(int *widthp, int *heightp, int depth_bpp,
48 			     int pixel_order, int alpha_mode, ulong *fb_basep,
49 			     ulong *fb_sizep, int *pitchp);
50 
51 #endif
52