// 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.

#pragma once

#include <unistd.h>
#include <zircon/compiler.h>
#include <ddk/protocol/platform-device.h>
#include <fbl/optional.h>
#include <fbl/unique_ptr.h>
#include <hwreg/mmio.h>
#include <ddktl/device.h>

#include "common.h"
#include "hhi-regs.h"
#include "vpu-regs.h"
#include "lcd.h"
#include "aml-mipi-phy.h"

namespace astro_display {

class AmlDsiHost {
public:
    AmlDsiHost(zx_device_t* parent, uint32_t bitrate, uint8_t panel_type)
        : parent_(parent), bitrate_(bitrate), panel_type_(panel_type) {}

    // This function sets up mipi dsi interface. It includes both DWC and AmLogic blocks
    // The DesignWare setup could technically be moved to the dw_mipi_dsi driver. However,
    // given the highly configurable nature of this block, we'd have to provide a lot of
    // information to the generic driver. Therefore, it's just simpler to configure it here
    zx_status_t Init();
    zx_status_t HostOn(const DisplaySetting& disp_setting);
    // This function will turn off DSI Host. It is a "best-effort" function. We will attempt
    // to shutdown whatever we can. Error during shutdown path is ignored and function proceeds
    // with shutting down.
    void HostOff(const DisplaySetting& disp_setting);
    void Dump();
private:
    void PhyEnable();
    void PhyDisable();
    zx_status_t HostModeInit(uint32_t opp, const DisplaySetting& disp_setting);

    fbl::optional<ddk::MmioBuffer>              mipi_dsi_mmio_;
    fbl::optional<ddk::MmioBuffer>              hhi_mmio_;

    pdev_protocol_t                  pdev_ = {};

    zx_device_t*                                parent_;

    uint32_t                                    bitrate_;
    uint8_t                                     panel_type_;

    bool                                        initialized_ = false;
    bool                                        host_on_ = false;

    fbl::unique_ptr<Lcd>         lcd_;
    fbl::unique_ptr<AmlMipiPhy>  phy_;

};

} // namespace astro_display