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64 lines
1.8 KiB
64 lines
1.8 KiB
5 months ago
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/*
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* File : mbox.h
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-08-29 zdzn first version
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*/
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#ifndef __MBOX_H__
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#define __MBOX_H__
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/* a properly aligned buffer */
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extern volatile unsigned int* mbox;
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#define MBOX_REQUEST 0
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/* channels */
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#define MBOX_CH_POWER 0
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#define MBOX_CH_FB 1
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#define MBOX_CH_VUART 2
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#define MBOX_CH_VCHIQ 3
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#define MBOX_CH_LEDS 4
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#define MBOX_CH_BTNS 5
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#define MBOX_CH_TOUCH 6
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#define MBOX_CH_COUNT 7
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#define MBOX_CH_PROP 8
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/* tags */
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#define MBOX_TAG_SETPOWER 0x28001
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#define MBOX_TAG_SETCLKRATE 0x38002
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#define MBOX_GET_MAC_ADDRESS 0x10003
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#define MBOX_GET_CLOCK_RATE 0x30002
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#define MBOX_SET_CLOCK_RATE 0x38002
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#define MBOX_TAG_LAST 0
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#define MMIO_BASE 0x3F000000
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#define VIDEOCORE_MBOX (MMIO_BASE+0x0000B880)
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#define MBOX_READ ((volatile unsigned int*)(VIDEOCORE_MBOX+0x0))
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#define MBOX_POLL ((volatile unsigned int*)(VIDEOCORE_MBOX+0x10))
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#define MBOX_SENDER ((volatile unsigned int*)(VIDEOCORE_MBOX+0x14))
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#define MBOX_STATUS ((volatile unsigned int*)(VIDEOCORE_MBOX+0x18))
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#define MBOX_CONFIG ((volatile unsigned int*)(VIDEOCORE_MBOX+0x1C))
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#define MBOX_WRITE ((volatile unsigned int*)(VIDEOCORE_MBOX+0x20))
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#define MBOX_RESPONSE 0x80000000
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#define MBOX_FULL 0x80000000
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#define MBOX_EMPTY 0x40000000
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#define DEVICE_ID_SD_CARD 0
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#define DEVICE_ID_USB_HCD 3
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#define POWER_STATE_OFF (0 << 0)
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#define POWER_STATE_ON (1 << 0)
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#define POWER_STATE_WAIT (1 << 1)
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#define POWER_STATE_NO_DEVICE (1 << 1) // in response
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#define MMU_ENABLE 1
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#define MMU_DISABLE 0
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#define MBOX_ADDR 0xc00000
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int mbox_call(unsigned char ch, int mmu_enable);
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#endif
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