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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-09-10 bigmagic first version
*/
#ifndef __MBOX_H__
#define __MBOX_H__
#include <rtthread.h>
#include "board.h"
//https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface
//https://github.com/hermanhermitage/videocoreiv
/* a properly aligned buffer */
extern volatile unsigned int* mbox;
#define MBOX_REQUEST 0
/* channels */
#define MBOX_CH_POWER 0
#define MBOX_CH_FB 1
#define MBOX_CH_VUART 2
#define MBOX_CH_VCHIQ 3
#define MBOX_CH_LEDS 4
#define MBOX_CH_BTNS 5
#define MBOX_CH_TOUCH 6
#define MBOX_CH_COUNT 7
#define MBOX_CH_PROP 8
/* tags */
#define MBOX_TAG_SETPOWER 0x28001
#define MBOX_TAG_SETCLKRATE 0x38002
#define MBOX_GET_MAC_ADDRESS 0x10003
#define MBOX_TAG_LAST 0
#define MMIO_BASE 0xFE000000
#define VIDEOCORE_MBOX (MMIO_BASE+0x0000B880)
#define MBOX_READ ((volatile unsigned int*)(VIDEOCORE_MBOX+0x0))
#define MBOX_POLL ((volatile unsigned int*)(VIDEOCORE_MBOX+0x10))
#define MBOX_SENDER ((volatile unsigned int*)(VIDEOCORE_MBOX+0x14))
#define MBOX_STATUS ((volatile unsigned int*)(VIDEOCORE_MBOX+0x18))
#define MBOX_CONFIG ((volatile unsigned int*)(VIDEOCORE_MBOX+0x1C))
#define MBOX_WRITE ((volatile unsigned int*)(VIDEOCORE_MBOX+0x20))
#define MBOX_RESPONSE 0x80000000
#define MBOX_FULL 0x80000000
#define MBOX_EMPTY 0x40000000
#define DEVICE_ID_SD_CARD (0)
#define DEVICE_ID_USB_HCD (3)
#define POWER_STATE_OFF (0 << 0)
#define POWER_STATE_ON (1 << 0)
#define POWER_STATE_WAIT (1 << 1)
#define POWER_STATE_NO_DEVICE (1 << 1) // in response
#define MMU_ENABLE (1)
#define MMU_DISABLE (0)
/*
* raspi hardware info
*/
enum {
MBOX_TAG_HARDWARE_GET_MODEL = 0x00010001,
MBOX_TAG_HARDWARE_GET_REV = 0x00010002,
MBOX_TAG_HARDWARE_GET_MAC_ADDRESS = 0x00010003,
MBOX_TAG_HARDWARE_GET_SERIAL = 0x00010004,
MBOX_TAG_HARDWARE_GET_ARM_MEMORY = 0x00010005,
MBOX_TAG_HARDWARE_GET_VC_MEMORY = 0x00010006,
MBOX_TAG_HARDWARE_GET_CLOCKS = 0x00010007,
};
/*
* raspi clock
*/
enum {
MBOX_TAG_CLOCK_GET_TURBO = 0x00030009,
MBOX_TAG_CLOCK_SET_TURBO = 0x00038009,
MBOX_TAG_CLOCK_GET_STATE = 0x00030001,
MBOX_TAG_CLOCK_SET_STATE = 0x00038001,
MBOX_TAG_CLOCK_GET_RATE = 0x00030002,
MBOX_TAG_CLOCK_SET_RATE = 0x00038002,
MBOX_TAG_CLOCK_GET_MAX_RATE = 0x00030004,
MBOX_TAG_CLOCK_GET_MIN_RATE = 0x00030007,
};
/*
* raspi power
*/
enum {
MBOX_TAG_POWER_GET_STATE = 0x00020001,
MBOX_TAG_POWER_SET_STATE = 0x00028001,
};
/*
* raspi temperature
*/
enum {
MBOX_TAG_TEMP_GET = 0x00030006,
MBOX_TAG_TEMP_GET_MAX = 0x0003000A,
};
/*
* raspi Memory
*/
enum {
MBOX_TAG_ALLOCATE_MEMORY = 0x0003000C, // Memory: Allocates Contiguous Memory On The GPU (Response: Handle)
MBOX_TAG_LOCK_MEMORY = 0x0003000D, // Memory: Unlock Buffer (Response: Status)
MBOX_TAG_UNLOCK_MEMORY = 0x0003000E, // Memory: Unlock Buffer (Response: Status)
MBOX_TAG_RELEASE_MEMORY = 0x0003000F, // Memory: Free The Memory Buffer (Response: Status)
MBOX_TAG_EXECUTE_CODE = 0x00030010, // Memory: Calls The Function At Given (Bus) Address And With Arguments Given
};
/*
* raspi GPU
*/
enum {
MBOX_TAG_EXECUTE_QPU = 0x00030011, // QPU: Calls The QPU Function At Given (Bus) Address And With Arguments Given (Response: Number Of QPUs, Control, No Flush, Timeout In ms)
MBOX_TAG_ENABLE_QPU = 0x00030012, // QPU: Enables The QPU (Response: Enable State)
};
/*
* raspi HDMI
*/
#define MBOX_TAG_GET_EDID_BLOCK 0x00030020 // HDMI: Read Specificed EDID Block From Attached HDMI/DVI Device (Response: Block Number, Status, EDID Block (128 Bytes))
/*
* raspi NOTIFY
*/
#define MBOX_TAG_NOTIFY_REBOOT 0x00030048
#define MBOX_TAG_NOTIFY_XHCI_RESET 0x00030058
/*
* touch
*/
#define MBOX_TAG_GET_TOUCHBUF (0x0004000F)
#define MBOX_ADDR 0x08000000
#define RES_CLK_ID (0x000000000)
#define EMMC_CLK_ID (0x000000001)
#define UART_CLK_ID (0x000000002)
#define ARM_CLK_ID (0x000000003)
#define CORE_CLK_ID (0x000000004)
#define V3D_CLK_ID (0x000000005)
#define H264_CLK_ID (0x000000006)
#define ISP_CLK_ID (0x000000007)
#define SDRAM_CLK_ID (0x000000008)
#define PIXEL_CLK_ID (0x000000009)
#define PWM_CLK_ID (0x00000000a)
int mbox_call(unsigned char ch, int mmu_enable);
int bcm271x_mbox_get_touch(void);
int bcm271x_notify_reboot(void);
int bcm271x_notify_xhci_reset(void);
int bcm271x_gpu_enable(void);
int bcm271x_mbox_hardware_get_model(void);
int bcm271x_mbox_hardware_get_revison(void);
int bcm271x_mbox_hardware_get_mac_address(uint8_t * mac);
int bcm271x_mbox_hardware_get_serial(rt_uint64_t* sn);
int bcm271x_mbox_hardware_get_arm_memory(rt_uint32_t * base, rt_uint32_t * size);
int bcm271x_mbox_hardware_get_vc_memory(rt_uint32_t * base, rt_uint32_t * size);
int bcm271x_mbox_clock_get_turbo(void);
int bcm271x_mbox_clock_set_turbo(int level);
int bcm271x_mbox_clock_get_state(int id);
int bcm271x_mbox_clock_set_state(int id, int state);
int bcm271x_mbox_clock_get_rate(int id);
int bcm271x_mbox_clock_set_rate(int id, int rate);
int bcm271x_mbox_clock_get_max_rate(int id);
int bcm271x_mbox_clock_get_min_rate(int id);
int bcm271x_mbox_power_get_state(int id);
int bcm271x_mbox_power_set_state(int id, int state);
int bcm271x_mbox_temp_get(void);
int bcm271x_mbox_temp_get_max(void);
#endif
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