/* * 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 #include // 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