1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2012,2015 Stephen Warren 4 */ 5 6 #ifndef _BCM2835_MSG_H 7 #define _BCM2835_MSG_H 8 9 /** 10 * bcm2835_power_on_module() - power on an SoC module 11 * 12 * @module: ID of module to power on (BCM2835_MBOX_POWER_DEVID_...) 13 * Return: 0 if OK, -EIO on error 14 */ 15 int bcm2835_power_on_module(u32 module); 16 17 /** 18 * bcm2835_get_mmc_clock() - get the frequency of the MMC clock 19 * 20 * @clock_id: ID of clock to get frequency for 21 * Return: clock frequency, or -ve on error 22 */ 23 int bcm2835_get_mmc_clock(u32 clock_id); 24 25 /** 26 * bcm2835_set_sdhost_clock() - determine if firmware controls sdhost cdiv 27 * 28 * @rate_hz: Input clock frequency 29 * @rate_1: Returns a clock frequency 30 * @rate_2: Returns a clock frequency 31 * @return 0 of OK, -EIO on error 32 */ 33 int bcm2835_set_sdhost_clock(u32 rate_hz, u32 *rate_1, u32 *rate_2); 34 35 /** 36 * bcm2835_get_video_size() - get the current display size 37 * 38 * @widthp: Returns the width in pixels 39 * @heightp: Returns the height in pixels 40 * Return: 0 if OK, -ve on error 41 */ 42 int bcm2835_get_video_size(int *widthp, int *heightp); 43 44 /** 45 * bcm2835_set_video_params() - set the video parameters 46 * 47 * @widthp: Video width to request (returns the actual width selected) 48 * @heightp: Video height to request (returns the actual height selected) 49 * @depth_bpp: Requested bit depth 50 * @pixel_order: Pixel order to use (BCM2835_MBOX_PIXEL_ORDER_...) 51 * @alpha_mode: Alpha transparency mode to use (BCM2835_MBOX_ALPHA_MODE_...) 52 * @fb_basep: Returns base address of frame buffer 53 * @fb_sizep: Returns size of frame buffer 54 * @pitchp: Returns number of bytes in each frame buffer line 55 * Return: 0 if OK, -ve on error 56 */ 57 int bcm2835_set_video_params(int *widthp, int *heightp, int depth_bpp, 58 int pixel_order, int alpha_mode, ulong *fb_basep, 59 ulong *fb_sizep, int *pitchp); 60 61 /** 62 * bcm2711_load_vl805_firmware() - get vl805's firmware loaded 63 * 64 * Return: 0 if OK, -EIO on error 65 */ 66 int bcm2711_notify_vl805_reset(void); 67 68 #endif 69