src/devices/board/drivers/sherlock/sherlock-hevc-enc.cc

// Copyright 2020 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 <fidl/fuchsia.hardware.platform.bus/cpp/driver/fidl.h>
#include <fidl/fuchsia.hardware.platform.bus/cpp/fidl.h>
#include <lib/ddk/binding.h>
#include <lib/ddk/debug.h>
#include <lib/ddk/device.h>
#include <lib/ddk/platform-defs.h>
#include <lib/driver/component/cpp/composite_node_spec.h>
#include <lib/driver/component/cpp/node_add_args.h>

#include <bind/fuchsia/amlogic/platform/cpp/bind.h>
#include <bind/fuchsia/clock/cpp/bind.h>
#include <bind/fuchsia/cpp/bind.h>
#include <bind/fuchsia/hardware/clock/cpp/bind.h>
#include <bind/fuchsia/hardware/sysmem/cpp/bind.h>
#include <soc/aml-meson/g12b-clk.h>
#include <soc/aml-t931/t931-hw.h>

#include "sherlock.h"

namespace fdf {
using namespace fuchsia_driver_framework;
}  // namespace fdf

namespace sherlock {
namespace fpbus = fuchsia_hardware_platform_bus;

static const std::vector<fpbus::Mmio> sherlock_hevc_enc_mmios{
    {{
        .base = T931_CBUS_BASE,
        .length = T931_CBUS_LENGTH,
    }},
    {{
        .base = T931_DOS_BASE,
        .length = T931_DOS_LENGTH,
    }},
    {{
        .base = T931_AOBUS_BASE,
        .length = T931_AOBUS_LENGTH,
    }},
    {{
        .base = T931_HIU_BASE,
        .length = T931_HIU_LENGTH,
    }},
    {{
        .base = T931_WAVE420L_BASE,
        .length = T931_WAVE420L_LENGTH,
    }},
};

static const std::vector<fpbus::Bti> sherlock_hevc_enc_btis{
    {{
        .iommu_index = 0,
        .bti_id = BTI_HEVC_ENC,
    }},
};

static const std::vector<fpbus::Irq> sherlock_hevc_enc_irqs{
    {{
        .irq = T931_WAVE420L_IRQ,
        .mode = ZX_INTERRUPT_MODE_EDGE_HIGH,
    }},
};

const std::vector<fdf::BindRule> kSysmemRules = std::vector{fdf::MakeAcceptBindRule(
    bind_fuchsia_hardware_sysmem::SERVICE, bind_fuchsia_hardware_sysmem::SERVICE_ZIRCONTRANSPORT)};

const std::vector<fdf::NodeProperty> kSysmemProperties = std::vector{
    fdf::MakeProperty(bind_fuchsia_hardware_sysmem::SERVICE,
                      bind_fuchsia_hardware_sysmem::SERVICE_ZIRCONTRANSPORT),
};

const std::vector<fdf::BindRule> kClkDosRules = std::vector{
    fdf::MakeAcceptBindRule(bind_fuchsia_hardware_clock::SERVICE,
                            bind_fuchsia_hardware_clock::SERVICE_ZIRCONTRANSPORT),
    fdf::MakeAcceptBindRule(bind_fuchsia::CLOCK_ID, g12b_clk::G12B_CLK_DOS),
};
const std::vector<fdf::NodeProperty> kClkDosProperties = std::vector{
    fdf::MakeProperty(bind_fuchsia_hardware_clock::SERVICE,
                      bind_fuchsia_hardware_clock::SERVICE_ZIRCONTRANSPORT),
    fdf::MakeProperty(bind_fuchsia_clock::FUNCTION, bind_fuchsia_clock::FUNCTION_DOS),
};

static const fpbus::Node hevc_enc_dev = []() {
  fpbus::Node dev = {};
  dev.name() = "aml-hevc-enc";
  dev.vid() = bind_fuchsia_amlogic_platform::BIND_PLATFORM_DEV_VID_AMLOGIC;
  dev.pid() = bind_fuchsia_amlogic_platform::BIND_PLATFORM_DEV_PID_T931;
  dev.did() = bind_fuchsia_amlogic_platform::BIND_PLATFORM_DEV_DID_HEVC_ENC;
  dev.instance_id() = 1;
  dev.mmio() = sherlock_hevc_enc_mmios;
  dev.bti() = sherlock_hevc_enc_btis;
  dev.irq() = sherlock_hevc_enc_irqs;
  return dev;
}();

zx_status_t Sherlock::HevcEncInit() {
  fidl::Arena<> fidl_arena;

  std::vector<fdf::ParentSpec> kHevcEncParents = {
      fdf::ParentSpec{{kSysmemRules, kSysmemProperties}},
      fdf::ParentSpec{{kClkDosRules, kClkDosProperties}}};
  fdf::Arena arena('HEVC');
  auto composite_result = pbus_.buffer(arena)->AddCompositeNodeSpec(
      fidl::ToWire(fidl_arena, hevc_enc_dev),
      fidl::ToWire(fidl_arena, fuchsia_driver_framework::CompositeNodeSpec{
                                   {.name = "aml-hevc-enc", .parents = kHevcEncParents}}));
  if (!composite_result.ok()) {
    zxlogf(ERROR, "AddCompositeNodeSpec HevcEnc(hevc_enc_dev) request failed: %s",
           composite_result.FormatDescription().data());
    return composite_result.status();
  }
  if (composite_result->is_error()) {
    zxlogf(ERROR, "AddCompositeNodeSpec HevcEnc(hevc_enc_dev) failed: %s",
           zx_status_get_string(composite_result->error_value()));
    return composite_result->error_value();
  }
  return ZX_OK;
}

}  // namespace sherlock