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