system/dev/board/mt8167s_ref/mt8167.cpp

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "mt8167.h"

#include <assert.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <ddk/binding.h>
#include <ddk/debug.h>
#include <ddk/device.h>
#include <ddk/driver.h>
#include <ddk/platform-defs.h>
#include <ddk/protocol/gpio.h>
#include <ddk/protocol/platform/device.h>

#include <fbl/algorithm.h>
#include <fbl/unique_ptr.h>

namespace board_mt8167 {

zx_status_t Mt8167::Create(zx_device_t* parent) {
    pbus_protocol_t pbus;

    auto status = device_get_protocol(parent, ZX_PROTOCOL_PBUS, &pbus);
    if (status != ZX_OK) {
        return status;
    }

    pdev_board_info_t board_info;
    status = pbus_get_board_info(&pbus, &board_info);
    if (status != ZX_OK) {
        zxlogf(ERROR, "%s: GetBoardInfo failed\n", __FILE__);
        return status;
    }

    fbl::AllocChecker ac;
    auto board = fbl::make_unique_checked<Mt8167>(&ac, parent, &pbus, &board_info);
    if (!ac.check()) {
        return ZX_ERR_NO_MEMORY;
    }

    status = board->DdkAdd("mt8167s_ref", DEVICE_ADD_NON_BINDABLE);
    if (status != ZX_OK) {
        return status;
    }

    // Start up our protocol helpers and platform devices.
    status = board->Start();
    if (status == ZX_OK) {
        // devmgr is now in charge of the device.
        __UNUSED auto* dummy = board.release();
    }
    return status;
}

int Mt8167::Thread() {
    if (SocInit() != ZX_OK) {
        zxlogf(ERROR, "SocInit() failed\n");
        return -1;
    }
    // Load protocol implementation drivers first.
    if (SysmemInit() != ZX_OK) {
        zxlogf(ERROR, "SysmemInit() failed\n");
        return -1;
    }
    if (GpioInit() != ZX_OK) {
        zxlogf(ERROR, "GpioInit() failed\n");
    }
    if (I2cInit() != ZX_OK) {
        zxlogf(ERROR, "I2cInit() failed\n");
    }
    if (ClkInit() != ZX_OK) {
        zxlogf(ERROR, "ClkInit() failed\n");
    }

    // Then the platform device drivers.
    if (EmmcInit() != ZX_OK) {
        zxlogf(ERROR, "EmmcInit() failed\n");
    }
    if (SdioInit() != ZX_OK) {
        zxlogf(ERROR, "SdioInit() failed\n");
    }
    // display driver is only supported on the ref board only
    if (board_info_.vid == PDEV_VID_MEDIATEK &&
        board_info_.pid == PDEV_PID_MEDIATEK_8167S_REF) {
        if (DisplayInit() != ZX_OK) {
            zxlogf(ERROR, "DisplayInit() failed\n");
        }
    }
    if (ButtonsInit() != ZX_OK) {
        zxlogf(ERROR, "ButtonsInit() failed\n");
    }
    if (GpuInit() != ZX_OK) {
        zxlogf(ERROR, "GpuInit() failed\n");
    }
    if (UsbInit() != ZX_OK) {
        zxlogf(ERROR, "UsbInit() failed\n");
    }
    // TouchInit() must be called before ThermalInit() as the touch driver uses the PMIC wrapper to
    // enable the VGP1 regulator.
    if (TouchInit() != ZX_OK) {
        zxlogf(ERROR, "TouchInit() failed\n");
    }
    if (ThermalInit() != ZX_OK) {
        zxlogf(ERROR, "ThermalInit() failed\n");
    }
    if (SensorsInit() != ZX_OK) {
        zxlogf(ERROR, "SensorsInit() failed\n");
    }
    if (BacklightInit() != ZX_OK) {
        zxlogf(ERROR, "BacklightInit() failed\n");
    }
    // Different boards have different i2c/gpio configs and codecs.
    if (board_info_.vid == PDEV_VID_MEDIATEK &&
        board_info_.pid == PDEV_PID_MEDIATEK_8167S_REF) {
        if (AudioInit() != ZX_OK) {
            zxlogf(ERROR, "AudioInit() failed\n");
        }
    }

    return 0;
}

zx_status_t Mt8167::Start() {
    int rc = thrd_create_with_name(&thread_,
                                   [](void* arg) -> int {
                                       return reinterpret_cast<Mt8167*>(arg)->Thread();
                                   },
                                   this,
                                   "mt8167-start-thread");
    if (rc != thrd_success) {
        return ZX_ERR_INTERNAL;
    }
    return ZX_OK;
}

void Mt8167::DdkRelease() {
    delete[] reinterpret_cast<char*>(usb_config_);
    delete this;
}

zx_status_t mt8167_bind(void* ctx, zx_device_t* parent) {
    return board_mt8167::Mt8167::Create(parent);
}

static zx_driver_ops_t driver_ops = [](){
    zx_driver_ops_t ops;
    ops.version = DRIVER_OPS_VERSION;
    ops.bind = mt8167_bind;
    return ops;
}();

} // namespace board_mt8167

ZIRCON_DRIVER_BEGIN(mt8167, board_mt8167::driver_ops, "zircon", "0.1", 7)
    BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_PBUS),
    BI_GOTO_IF(NE, BIND_PLATFORM_DEV_VID, PDEV_VID_MEDIATEK, 0),
    BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_PID, PDEV_PID_MEDIATEK_8167S_REF),
    BI_LABEL(0),
    BI_ABORT_IF(NE, BIND_PLATFORM_DEV_VID, PDEV_VID_GOOGLE),
    BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_PID, PDEV_PID_CLEO),
    BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_PID, PDEV_PID_EAGLE),
ZIRCON_DRIVER_END(mt8167)