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/*
* Copyright (c) 2017 Eric Holland
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include <platform/bcm28xx.h>
#define VCORE_MAILBOX_PHYSICAL_ADDRESS (ARMCTRL_0_SBM_BASE + 0x80)
#define VCORE_TAG_REQUEST 0x00000000
#define VCORE_ENDTAG 0x00000000
#define VCORE_TAG_GET_FIRMWARE_REV 0x00000001
#define VCORE_TAG_GET_FIRMWARE_REV_REQ_LEN 0x00000000
#define VCORE_TAG_GET_FIRMWARE_REV_RSP_LEN 0x00000004
#define VCORE_MAILBOX_FULL 0x80000000
#define VCORE_MAILBOX_EMPTY 0x40000000
#define VC_FB_CHANNEL 0x01
#define ARM_TO_VC_CHANNEL 0x08
#define VC_TO_ARM_CHANNEL 0x09
#define VCORE_SUCCESS 0
#define VCORE_ERR_MBOX_FULL 1
#define VCORE_ERR_MBOX_TIMEOUT 2
#define VCORE_READ_ATTEMPTS 0xffffffff
#define MAILBOX_READ 0
#define MAILBOX_PEEK 2
#define MAILBOX_CONDIG 4
#define MAILBOX_STATUS 6
#define MAILBOX_WRITE 8
#define MAILBOX_FULL 0x80000000
#define MAILBOX_EMPTY 0x40000000
#define MAX_MAILBOX_READ_ATTEMPTS 8
enum mailbox_channel {
ch_power = 0,
ch_framebuffer = 1,
ch_vuart = 2,
ch_vchic = 3,
ch_leds = 4,
ch_buttons = 5,
ch_touchscreen = 6,
ch_unused = 7,
ch_propertytags_tovc = 8,
ch_propertytags_fromvc = 9,
};
typedef struct {
uint32_t phys_width; //request
uint32_t phys_height; //request
uint32_t virt_width; //request
uint32_t virt_height; //request
uint32_t pitch; //response
uint32_t depth; //request
uint32_t virt_x_offs; //request
uint32_t virt_y_offs; //request
uint32_t fb_p; //response
uint32_t fb_size; //response
} fb_mbox_t;
uint32_t get_vcore_framebuffer(fb_mbox_t * fb_mbox);
status_t init_framebuffer(void);
uint32_t _get_vcore_single(uint32_t tag, uint32_t req_len, uint8_t * rsp, uint32_t rsp_len);
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