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 * @clock_id: ID of clock to get frequency for 22 * @return clock frequency, or -ve on error 23 */ 24 int bcm2835_get_mmc_clock(u32 clock_id); 25 26 /** 27 * bcm2835_get_video_size() - get the current display size 28 * 29 * @widthp: Returns the width in pixels 30 * @heightp: Returns the height in pixels 31 * @return 0 if OK, -ve on error 32 */ 33 int bcm2835_get_video_size(int *widthp, int *heightp); 34 35 /** 36 * bcm2835_set_video_params() - set the video parameters 37 * 38 * @widthp: Video width to request (returns the actual width selected) 39 * @heightp: Video height to request (returns the actual height selected) 40 * @depth_bpp: Requested bit depth 41 * @pixel_order: Pixel order to use (BCM2835_MBOX_PIXEL_ORDER_...) 42 * @alpha_mode: Alpha transparency mode to use (BCM2835_MBOX_ALPHA_MODE_...) 43 * @fb_basep: Returns base address of frame buffer 44 * @fb_sizep: Returns size of frame buffer 45 * @pitchp: Returns number of bytes in each frame buffer line 46 * @return 0 if OK, -ve on error 47 */ 48 int bcm2835_set_video_params(int *widthp, int *heightp, int depth_bpp, 49 int pixel_order, int alpha_mode, ulong *fb_basep, 50 ulong *fb_sizep, int *pitchp); 51 52 #endif 53