zircon/system/dev/board/sherlock/sherlock-display.cc

// 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 <ddk/binding.h>
#include <ddk/debug.h>
#include <ddk/device.h>
#include <ddk/metadata.h>
#include <ddk/metadata/display.h>
#include <ddk/platform-defs.h>
#include <soc/aml-t931/t931-gpio.h>

#include "sherlock-gpios.h"
#include "sherlock.h"

namespace sherlock {

namespace {
constexpr pbus_mmio_t display_mmios[] = {
    {
        // VBUS/VPU
        .base = T931_VPU_BASE,
        .length = T931_VPU_LENGTH,
    },
    {
        // DSI Host Controller
        .base = T931_TOP_MIPI_DSI_BASE,
        .length = T931_TOP_MIPI_DSI_LENGTH,
    },
    {
        // DSI PHY
        .base = T931_DSI_PHY_BASE,
        .length = T931_DSI_PHY_LENGTH,
    },
    {
        // HHI
        .base = T931_HIU_BASE,
        .length = T931_HIU_LENGTH,
    },
    {
        // AOBUS
        .base = T931_AOBUS_BASE,
        .length = T931_AOBUS_LENGTH,
    },
    {
        // CBUS
        .base = T931_CBUS_BASE,
        .length = T931_CBUS_LENGTH,
    },
};

static const pbus_irq_t display_irqs[] = {
    {
        .irq = T931_VIU1_VSYNC_IRQ,
        .mode = ZX_INTERRUPT_MODE_EDGE_HIGH,
    },
    {
        .irq = T931_RDMA_DONE,
        .mode = ZX_INTERRUPT_MODE_EDGE_HIGH,
    },
};

constexpr display_driver_t display_driver_info[] = {
    {
        .vid = PDEV_VID_AMLOGIC,
        .pid = PDEV_PID_AMLOGIC_S905D2,
        .did = PDEV_DID_AMLOGIC_DISPLAY,
    },
};

constexpr pbus_metadata_t display_metadata[] = {
    {
        .type = DEVICE_METADATA_DISPLAY_DEVICE,
        .data_buffer = &display_driver_info,
        .data_size = sizeof(display_driver_t),
    },
};

static const pbus_bti_t display_btis[] = {
    {
        .iommu_index = 0,
        .bti_id = BTI_DISPLAY,
    },
};

constexpr pbus_mmio_t dsi_mmios[] = {
    {
        // DSI Host Controller
        .base = T931_MIPI_DSI_BASE,
        .length = T931_MIPI_DSI_LENGTH,
    },
};

static pbus_dev_t display_dev = []() {
  pbus_dev_t dev = {};
  dev.name = "display";
  dev.vid = PDEV_VID_AMLOGIC;
  dev.pid = PDEV_PID_AMLOGIC_S905D2;
  dev.did = PDEV_DID_AMLOGIC_DISPLAY;
  dev.mmio_list = display_mmios;
  dev.mmio_count = countof(display_mmios);
  dev.irq_list = display_irqs;
  dev.irq_count = countof(display_irqs);
  dev.bti_list = display_btis;
  dev.bti_count = countof(display_btis);
  return dev;
}();

static pbus_dev_t dsi_dev = []() {
  pbus_dev_t dev = {};
  dev.name = "dw-dsi";
  dev.vid = PDEV_VID_GENERIC;
  dev.pid = PDEV_PID_GENERIC;
  dev.did = PDEV_DID_DW_DSI;
  dev.metadata_list = display_metadata;
  dev.metadata_count = countof(display_metadata);
  dev.mmio_list = dsi_mmios;
  dev.mmio_count = countof(dsi_mmios);
  return dev;
}();

// Composite binding rules for display driver.
static const zx_bind_inst_t root_match[] = {
    BI_MATCH(),
};
static const zx_bind_inst_t dsi_match[] = {
    BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_DSI_IMPL),
    BI_ABORT_IF(NE, BIND_PLATFORM_DEV_VID, PDEV_VID_AMLOGIC),
    BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_PID, PDEV_PID_AMLOGIC_S905D2),
    BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_DID, PDEV_DID_AMLOGIC_DISPLAY),
};
static const zx_bind_inst_t panel_gpio_match[] = {
    BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_GPIO),
    BI_MATCH_IF(EQ, BIND_GPIO_PIN, GPIO_PANEL_DETECT),
};
static const zx_bind_inst_t lcd_gpio_match[] = {
    BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_GPIO),
    BI_MATCH_IF(EQ, BIND_GPIO_PIN, GPIO_LCD_RESET),
};
static const zx_bind_inst_t sysmem_match[] = {
    BI_MATCH_IF(EQ, BIND_PROTOCOL, ZX_PROTOCOL_SYSMEM),
};
static const zx_bind_inst_t canvas_match[] = {
    BI_MATCH_IF(EQ, BIND_PROTOCOL, ZX_PROTOCOL_AMLOGIC_CANVAS),
};
static const device_component_part_t dsi_component[] = {
    {countof(root_match), root_match},
    {countof(dsi_match), dsi_match},
};
static const device_component_part_t panel_gpio_component[] = {
    {countof(root_match), root_match},
    {countof(panel_gpio_match), panel_gpio_match},
};
static const device_component_part_t lcd_gpio_component[] = {
    {countof(root_match), root_match},
    {countof(lcd_gpio_match), lcd_gpio_match},
};
static const device_component_part_t sysmem_component[] = {
    {countof(root_match), root_match},
    {countof(sysmem_match), sysmem_match},
};
static const device_component_part_t canvas_component[] = {
    {countof(root_match), root_match},
    {countof(canvas_match), canvas_match},
};
static const device_component_t components[] = {
    {countof(dsi_component), dsi_component},
    {countof(panel_gpio_component), panel_gpio_component},
    {countof(lcd_gpio_component), lcd_gpio_component},
    {countof(sysmem_component), sysmem_component},
    {countof(canvas_component), canvas_component},
};

}  // namespace

zx_status_t Sherlock::DisplayInit() {
  auto status = pbus_.DeviceAdd(&dsi_dev);
  if (status != ZX_OK) {
    zxlogf(ERROR, "%s: DeviceAdd failed %d\n", __func__, status);
    return status;
  }

  status = pbus_.CompositeDeviceAdd(&display_dev, components, countof(components), 1);
  if (status != ZX_OK) {
    zxlogf(ERROR, "%s: CompositeDeviceAdd failed: %d\n", __FUNCTION__, status);
    return status;
  }

  return ZX_OK;
}

}  // namespace sherlock