1 /* 2 * File : mbox.h 3 * Copyright (c) 2006-2021, RT-Thread Development Team 4 * 5 * SPDX-License-Identifier: Apache-2.0 6 * 7 * Change Logs: 8 * Date Author Notes 9 * 2019-08-29 zdzn first version 10 */ 11 12 #ifndef __MBOX_H__ 13 #define __MBOX_H__ 14 15 #include <rtthread.h> 16 #include <stdint.h> 17 /* a properly aligned buffer */ 18 extern volatile unsigned int* mbox; 19 20 #define MBOX_REQUEST 0 21 22 /* channels */ 23 #define MBOX_CH_POWER 0 24 #define MBOX_CH_FB 1 25 #define MBOX_CH_VUART 2 26 #define MBOX_CH_VCHIQ 3 27 #define MBOX_CH_LEDS 4 28 #define MBOX_CH_BTNS 5 29 #define MBOX_CH_TOUCH 6 30 #define MBOX_CH_COUNT 7 31 #define MBOX_CH_PROP 8 32 33 /* tags */ 34 #define MBOX_TAG_SETPOWER 0x28001 35 #define MBOX_TAG_SETCLKRATE 0x38002 36 #define MBOX_GET_MAC_ADDRESS 0x10003 37 #define MBOX_TAG_LAST 0 38 39 #define MMIO_BASE 0x3F000000 40 #define VIDEOCORE_MBOX (MMIO_BASE+0x0000B880) 41 #define MBOX_READ ((volatile unsigned int*)(VIDEOCORE_MBOX+0x0)) 42 #define MBOX_POLL ((volatile unsigned int*)(VIDEOCORE_MBOX+0x10)) 43 #define MBOX_SENDER ((volatile unsigned int*)(VIDEOCORE_MBOX+0x14)) 44 #define MBOX_STATUS ((volatile unsigned int*)(VIDEOCORE_MBOX+0x18)) 45 #define MBOX_CONFIG ((volatile unsigned int*)(VIDEOCORE_MBOX+0x1C)) 46 #define MBOX_WRITE ((volatile unsigned int*)(VIDEOCORE_MBOX+0x20)) 47 #define MBOX_RESPONSE 0x80000000 48 #define MBOX_FULL 0x80000000 49 #define MBOX_EMPTY 0x40000000 50 51 #define DEVICE_ID_SD_CARD 0 52 #define DEVICE_ID_USB_HCD 3 53 #define POWER_STATE_OFF (0 << 0) 54 #define POWER_STATE_ON (1 << 0) 55 #define POWER_STATE_WAIT (1 << 1) 56 #define POWER_STATE_NO_DEVICE (1 << 1) // in response 57 #define MMU_ENABLE 1 58 #define MMU_DISABLE 0 59 60 /* 61 * raspi hardware info 62 */ 63 enum { 64 MBOX_TAG_HARDWARE_GET_MODEL = 0x00010001, 65 MBOX_TAG_HARDWARE_GET_REV = 0x00010002, 66 MBOX_TAG_HARDWARE_GET_MAC_ADDRESS = 0x00010003, 67 MBOX_TAG_HARDWARE_GET_SERIAL = 0x00010004, 68 MBOX_TAG_HARDWARE_GET_ARM_MEMORY = 0x00010005, 69 MBOX_TAG_HARDWARE_GET_VC_MEMORY = 0x00010006, 70 MBOX_TAG_HARDWARE_GET_CLOCKS = 0x00010007, 71 }; 72 73 /* 74 * raspi clock 75 */ 76 enum { 77 MBOX_TAG_CLOCK_GET_TURBO = 0x00030009, 78 MBOX_TAG_CLOCK_SET_TURBO = 0x00038009, 79 MBOX_TAG_CLOCK_GET_STATE = 0x00030001, 80 MBOX_TAG_CLOCK_SET_STATE = 0x00038001, 81 MBOX_TAG_CLOCK_GET_RATE = 0x00030002, 82 MBOX_TAG_CLOCK_SET_RATE = 0x00038002, 83 MBOX_TAG_CLOCK_GET_MAX_RATE = 0x00030004, 84 MBOX_TAG_CLOCK_GET_MIN_RATE = 0x00030007, 85 }; 86 87 /* 88 * raspi power 89 */ 90 enum { 91 MBOX_TAG_POWER_GET_STATE = 0x00020001, 92 MBOX_TAG_POWER_SET_STATE = 0x00028001, 93 }; 94 95 /* 96 * raspi temperature 97 */ 98 enum { 99 MBOX_TAG_TEMP_GET = 0x00030006, 100 MBOX_TAG_TEMP_GET_MAX = 0x0003000A, 101 }; 102 103 #define MBOX_ADDR 0xc00000 104 105 int mbox_call(unsigned char ch, int mmu_enable); 106 int bcm283x_mbox_hardware_get_model(void); 107 int bcm283x_mbox_hardware_get_revison(void); 108 int bcm283x_mbox_hardware_get_mac_address(uint8_t * mac); 109 int bcm283x_mbox_hardware_get_serial(rt_uint64_t* sn); 110 int bcm283x_mbox_hardware_get_arm_memory(rt_uint32_t * base, rt_uint32_t * size); 111 int bcm283x_mbox_hardware_get_vc_memory(rt_uint32_t * base, rt_uint32_t * size); 112 int bcm283x_mbox_clock_get_turbo(void); 113 int bcm283x_mbox_clock_set_turbo(int level); 114 int bcm283x_mbox_clock_get_state(int id); 115 int bcm283x_mbox_clock_set_state(int id, int state); 116 int bcm283x_mbox_clock_get_rate(int id); 117 int bcm283x_mbox_clock_set_rate(int id, int rate); 118 int bcm283x_mbox_clock_get_max_rate(int id); 119 int bcm283x_mbox_clock_get_min_rate(int id); 120 int bcm283x_mbox_power_get_state(int id); 121 int bcm283x_mbox_power_set_state(int id, int state); 122 int bcm283x_mbox_temp_get(void); 123 int bcm283x_mbox_temp_get_max(void); 124 125 #endif 126