516 lines
13 KiB
C
516 lines
13 KiB
C
/*
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* File : mbox.c
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* Copyright (c) 2006-2018, 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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* 2020-09-10 bigmagic add other mbox option
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*/
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/* mailbox message buffer */
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#include "mbox.h"
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#include "mmu.h"
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//volatile unsigned int __attribute__((aligned(16))) mbox[36];
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volatile unsigned int *mbox = (volatile unsigned int *) MBOX_ADDR;
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#define BUS_ADDRESS(phys) (((phys) & ~0xC0000000) | 0xC0000000)
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/**
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* Make a mailbox call. Returns 0 on failure, non-zero on success
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*/
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int mbox_call(unsigned char ch, int mmu_enable)
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{
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unsigned int r = (((MBOX_ADDR)&~0xF) | (ch&0xF));
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if(mmu_enable)
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r = BUS_ADDRESS(r);
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/* wait until we can write to the mailbox */
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do
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{
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asm volatile("nop");
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} while (*MBOX_STATUS & MBOX_FULL);
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/* write the address of our message to the mailbox with channel identifier */
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*MBOX_WRITE = r;
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/* now wait for the response */
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while(1)
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{
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/* is there a response? */
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do
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{
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asm volatile("nop");
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} while (*MBOX_STATUS & MBOX_EMPTY);
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/* is it a response to our message? */
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if (r == *MBOX_READ){
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/* is it a valid successful response? */
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return mbox[1] == MBOX_RESPONSE;
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}
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}
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return 0;
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}
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int bcm271x_mbox_get_touch(void)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_GET_TOUCHBUF;
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mbox[3] = 4; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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return (int)(mbox[5] & ~0xC0000000);
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}
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int bcm271x_notify_reboot(void)
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{
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mbox[0] = 7*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_NOTIFY_REBOOT; // (the tag id)
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mbox[3] = 0x00000004; // length + 4
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mbox[4] = 0x00000000; // size of the data
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mbox[5] = 0x00000000; // request
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mbox[6] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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return 0;
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}
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int bcm271x_notify_xhci_reset(void)
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{
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mbox[0] = 7*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_NOTIFY_XHCI_RESET; // (the tag id)
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mbox[3] = 0x00000004; // length + 4
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mbox[4] = 0x00000004; // size of the data
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mbox[5] = 0x00100000; // request
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mbox[6] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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return 0;
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}
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int bcm271x_gpu_enable(void)
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{
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mbox[0] = 12*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_SET_RATE;
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mbox[3] = 0x00000008; // (the tag id)
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mbox[4] = 0x00000008; // (the tag id)
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mbox[5] = 5; // V3D
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mbox[6] = 250 * 1000 * 1000;
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mbox[7] = MBOX_TAG_ENABLE_QPU; // (the tag id)
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mbox[8] = 0x00000004; // (size of the buffer)
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mbox[9] = 0x00000004; // (size of the data)
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mbox[10] = 0x00000001;
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mbox[11] = MBOX_TAG_LAST; // end tag
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mbox_call(8, MMU_DISABLE);
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return mbox[1];
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}
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int bcm271x_mbox_hardware_get_model(void)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_HARDWARE_GET_MODEL;
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mbox[3] = 4; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0;
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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return mbox[5];
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}
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int bcm271x_mbox_hardware_get_revison(void)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_HARDWARE_GET_REV;
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mbox[3] = 4; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0;
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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return mbox[5];
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}
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int bcm271x_mbox_hardware_get_mac_address(uint8_t * mac)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_HARDWARE_GET_MAC_ADDRESS;
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mbox[3] = 6; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0;
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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char * mac_str = (char *)&mbox[5];
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mac[0] = mac_str[0];
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mac[1] = mac_str[1];
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mac[2] = mac_str[2];
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mac[3] = mac_str[3];
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mac[4] = mac_str[4];
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mac[5] = mac_str[5];
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return 0;
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}
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int bcm271x_mbox_hardware_get_serial(rt_uint64_t* sn)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_HARDWARE_GET_SERIAL;
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mbox[3] = 8; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0;
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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sn = (rt_uint64_t *)&mbox[5];
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return 0;
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}
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int bcm271x_mbox_hardware_get_arm_memory(rt_uint32_t * base, rt_uint32_t * size)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_HARDWARE_GET_ARM_MEMORY;
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mbox[3] = 8; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0;
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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*base = mbox[5];
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*size = mbox[6];
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return 0;
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}
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int bcm271x_mbox_hardware_get_vc_memory(rt_uint32_t * base, rt_uint32_t * size)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_HARDWARE_GET_VC_MEMORY;
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mbox[3] = 8; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0;
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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*base = mbox[5];
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*size = mbox[6];
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return 0;
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}
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int bcm271x_mbox_clock_get_turbo(void)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_GET_TURBO;
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mbox[3] = 8; // buffer size
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mbox[4] = 4; // len
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mbox[5] = 0; // id
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mbox[6] = 0; // val
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != 0)
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{
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return -1;
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}
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return mbox[6];
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}
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int bcm271x_mbox_clock_set_turbo(int level)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_SET_TURBO;
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mbox[3] = 8; // buffer size
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mbox[4] = 8; // len
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mbox[5] = 0; // id
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mbox[6] = level ? 1 : 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != 0)
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{
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return -1;
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}
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return mbox[6];
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}
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int bcm271x_mbox_clock_get_state(int id)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_GET_STATE;
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mbox[3] = 8; // buffer size
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mbox[4] = 4; // len
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mbox[5] = id; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != id)
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{
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return -1;
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}
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return (mbox[6] & 0x3);
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}
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int bcm271x_mbox_clock_set_state(int id, int state)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_SET_STATE;
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mbox[3] = 8; // buffer size
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mbox[4] = 8; // len
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mbox[5] = id; // id
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mbox[6] = state & 0x3;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != id)
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{
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return -1;
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}
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return (mbox[6] & 0x3);
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}
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int bcm271x_mbox_clock_get_rate(int id)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_GET_RATE;
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mbox[3] = 8; // buffer size
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mbox[4] = 4; // len
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mbox[5] = id; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != id)
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{
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return -1;
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}
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return mbox[6];
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}
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int bcm271x_mbox_clock_set_rate(int id, int rate)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_SET_RATE;
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mbox[3] = 8; // buffer size
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mbox[4] = 8; // len
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mbox[5] = id; // id
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mbox[6] = rate;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != id)
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{
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return -1;
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}
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return mbox[6];
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}
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int bcm271x_mbox_clock_get_max_rate(int id)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_GET_MAX_RATE;
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mbox[3] = 8; // buffer size
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mbox[4] = 4; // len
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mbox[5] = id; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != id)
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{
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return -1;
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}
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return mbox[6];
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}
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int bcm271x_mbox_clock_get_min_rate(int id)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_CLOCK_GET_MIN_RATE;
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mbox[3] = 8; // buffer size
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mbox[4] = 4; // len
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mbox[5] = id; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != id)
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{
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return -1;
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}
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return mbox[6];
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}
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int bcm271x_mbox_power_get_state(int id)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_POWER_GET_STATE;
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mbox[3] = 8; // buffer size
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mbox[4] = 4; // len
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mbox[5] = id; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != id)
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{
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return -1;
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}
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return (mbox[6] & 0x3);
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}
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int bcm271x_mbox_power_set_state(int id, int state)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_POWER_SET_STATE;
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mbox[3] = 8; // buffer size
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mbox[4] = 8; // len
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mbox[5] = id; // id
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mbox[6] = state & 0x3;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != id)
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{
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return -1;
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}
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return (mbox[6] & 0x3);
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}
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int bcm271x_mbox_temp_get(void)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_TEMP_GET;
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mbox[3] = 8; // buffer size
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mbox[4] = 4; // len
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mbox[5] = 0; //id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != 0)
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{
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return -1;
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}
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return mbox[6];
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}
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int bcm271x_mbox_temp_get_max(void)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_TEMP_GET_MAX;
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mbox[3] = 8; // buffer size
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mbox[4] = 4; // len
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mbox[5] = 0; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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if(mbox[5] != 0)
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{
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return -1;
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}
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return mbox[6];
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}
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