| // 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/debug.h> |
| #include <lib/ddk/device.h> |
| #include <lib/ddk/metadata.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/cpp/bind.h> |
| #include <bind/fuchsia/i2c/cpp/bind.h> |
| #include <bind/fuchsia/ti/platform/cpp/bind.h> |
| #include <ddk/metadata/gpio.h> |
| #include <soc/aml-a311d/a311d-gpio.h> |
| #include <soc/aml-a311d/a311d-hw.h> |
| |
| #include "vim3-gpios.h" |
| #include "vim3.h" |
| |
| namespace vim3 { |
| namespace fpbus = fuchsia_hardware_platform_bus; |
| |
| static const std::vector<fpbus::Mmio> gpio_mmios{ |
| {{ |
| .base = A311D_GPIO_BASE, |
| .length = A311D_GPIO_LENGTH, |
| }}, |
| {{ |
| .base = A311D_GPIO_AO_BASE, |
| .length = A311D_GPIO_AO_LENGTH, |
| }}, |
| {{ |
| .base = A311D_GPIO_INTERRUPT_BASE, |
| .length = A311D_GPIO_INTERRUPT_LENGTH, |
| }}, |
| }; |
| |
| static const std::vector<fpbus::Irq> gpio_irqs{ |
| {{ |
| .irq = A311D_GPIO_IRQ_0, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }}, |
| {{ |
| .irq = A311D_GPIO_IRQ_1, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }}, |
| {{ |
| .irq = A311D_GPIO_IRQ_2, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }}, |
| {{ |
| .irq = A311D_GPIO_IRQ_3, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }}, |
| {{ |
| .irq = A311D_GPIO_IRQ_4, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }}, |
| {{ |
| .irq = A311D_GPIO_IRQ_5, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }}, |
| {{ |
| .irq = A311D_GPIO_IRQ_6, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }}, |
| {{ |
| .irq = A311D_GPIO_IRQ_7, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }}, |
| }; |
| |
| // GPIOs to expose from generic GPIO driver. |
| static const gpio_pin_t gpio_pins[] = { |
| DECL_GPIO_PIN(VIM3_J4_PIN_39), |
| DECL_GPIO_PIN(VIM3_ETH_MAC_INTR), |
| DECL_GPIO_PIN(A311D_GPIOBOOT(12)), |
| DECL_GPIO_PIN(A311D_GPIOX(6)), |
| DECL_GPIO_PIN(VIM3_HPD_IN), |
| DECL_GPIO_PIN(VIM3_FUSB302_INT), |
| DECL_GPIO_PIN(VIM3_TOUCH_PANEL_INTERRUPT), |
| DECL_GPIO_PIN(VIM3_WIFI_WAKE_HOST), |
| DECL_GPIO_PIN(VIM3_WIFI_32K), |
| DECL_GPIO_PIN(VIM3_BT_EN), |
| }; |
| |
| static const std::vector<fpbus::Metadata> gpio_metadata{ |
| {{ |
| .type = DEVICE_METADATA_GPIO_PINS, |
| .data = |
| std::vector<uint8_t>(reinterpret_cast<const uint8_t*>(&gpio_pins), |
| reinterpret_cast<const uint8_t*>(&gpio_pins) + sizeof(gpio_pins)), |
| }}, |
| }; |
| |
| static const fpbus::Node gpio_dev = []() { |
| fpbus::Node dev = {}; |
| dev.name() = "gpio"; |
| dev.vid() = PDEV_VID_AMLOGIC; |
| dev.pid() = PDEV_PID_AMLOGIC_A311D; |
| dev.did() = PDEV_DID_AMLOGIC_GPIO; |
| dev.mmio() = gpio_mmios; |
| dev.irq() = gpio_irqs; |
| dev.metadata() = gpio_metadata; |
| return dev; |
| }(); |
| |
| fuchsia_driver_framework::CompositeNodeSpec CreateGpioExpanderCompositeNodeSpec() { |
| std::vector<fuchsia_driver_framework::BindRule> i2cRules = { |
| fdf::MakeAcceptBindRule(bind_fuchsia::FIDL_PROTOCOL, |
| bind_fuchsia_i2c::BIND_FIDL_PROTOCOL_DEVICE), |
| fdf::MakeAcceptBindRule(bind_fuchsia::I2C_BUS_ID, bind_fuchsia_i2c::BIND_I2C_BUS_ID_I2C_A0_0), |
| fdf::MakeAcceptBindRule(bind_fuchsia::I2C_ADDRESS, bind_fuchsia_i2c::BIND_I2C_ADDRESS_VIM3)}; |
| |
| std::vector<fuchsia_driver_framework::NodeProperty> i2cProperties = { |
| fdf::MakeProperty(bind_fuchsia::FIDL_PROTOCOL, bind_fuchsia_i2c::BIND_FIDL_PROTOCOL_DEVICE), |
| fdf::MakeProperty(bind_fuchsia::PLATFORM_DEV_VID, |
| bind_fuchsia_ti_platform::BIND_PLATFORM_DEV_VID_TI), |
| fdf::MakeProperty(bind_fuchsia::PLATFORM_DEV_DID, |
| bind_fuchsia_ti_platform::BIND_PLATFORM_DEV_DID_TCA6408A), |
| }; |
| |
| std::vector<fuchsia_driver_framework::ParentSpec> parents = {fuchsia_driver_framework::ParentSpec{ |
| {.bind_rules = std::move(i2cRules), .properties = std::move(i2cProperties)}}}; |
| |
| return fuchsia_driver_framework::CompositeNodeSpec{ |
| {.name = "gpio-expander", .parents = std::move(parents)}}; |
| } |
| |
| fpbus::Node CreateGpioExpanderPbusNode() { |
| static const gpio_pin_t kGpioExpanderPins[] = { |
| DECL_GPIO_PIN(VIM3_LCD_RESET), |
| DECL_GPIO_PIN(VIM3_LCD_BACKLIGHT_ENABLE), |
| DECL_GPIO_PIN(VIM3_TOUCH_PANEL_RESET), |
| DECL_GPIO_PIN(VIM3_SD_MODE), |
| }; |
| |
| static const uint32_t kGpioExpanderPinOffset = VIM3_EXPANDER_GPIO_START; |
| |
| fpbus::Node dev = {}; |
| dev.name() = "gpio-expander"; |
| dev.vid() = bind_fuchsia_ti_platform::BIND_PLATFORM_DEV_VID_TI; |
| dev.pid() = PDEV_PID_GENERIC; |
| dev.did() = bind_fuchsia_ti_platform::BIND_PLATFORM_DEV_DID_TCA6408A; |
| dev.metadata() = std::vector<fpbus::Metadata>{ |
| {{ |
| .type = DEVICE_METADATA_GPIO_PINS, |
| .data = std::vector<uint8_t>( |
| reinterpret_cast<const uint8_t*>(&kGpioExpanderPins), |
| reinterpret_cast<const uint8_t*>(&kGpioExpanderPins) + sizeof(kGpioExpanderPins)), |
| }}, |
| {{ |
| .type = DEVICE_METADATA_PRIVATE, |
| .data = std::vector<uint8_t>(reinterpret_cast<const uint8_t*>(&kGpioExpanderPinOffset), |
| reinterpret_cast<const uint8_t*>(&kGpioExpanderPinOffset) + |
| sizeof(kGpioExpanderPinOffset)), |
| }}}; |
| return dev; |
| } |
| |
| zx_status_t Vim3::GpioInit() { |
| fidl::Arena<> fidl_arena; |
| fdf::Arena arena('GPIO'); |
| auto result = pbus_.buffer(arena)->ProtocolNodeAdd(ZX_PROTOCOL_GPIO_IMPL, |
| fidl::ToWire(fidl_arena, gpio_dev)); |
| if (!result.ok()) { |
| zxlogf(ERROR, "%s: ProtocolNodeAdd Gpio(gpio_dev) request failed: %s", __func__, |
| result.FormatDescription().data()); |
| return result.status(); |
| } |
| if (result->is_error()) { |
| zxlogf(ERROR, "%s: ProtocolNodeAdd Gpio(gpio_dev) failed: %s", __func__, |
| zx_status_get_string(result->error_value())); |
| return result->error_value(); |
| } |
| |
| gpio_impl_ = ddk::GpioImplProtocolClient(parent()); |
| if (!gpio_impl_.is_valid()) { |
| zxlogf(ERROR, "%s: device_get_protocol failed", __func__); |
| return ZX_ERR_INTERNAL; |
| } |
| |
| fdf::Arena gpio_expander_arena('XPND'); |
| fdf::WireUnownedResult gpio_expander_result = |
| pbus_.buffer(gpio_expander_arena) |
| ->AddCompositeNodeSpec(fidl::ToWire(fidl_arena, CreateGpioExpanderPbusNode()), |
| fidl::ToWire(fidl_arena, CreateGpioExpanderCompositeNodeSpec())); |
| if (!gpio_expander_result.ok() || gpio_expander_result.value().is_error()) { |
| zxlogf(ERROR, "AddComposite for big core failed, error = %s", |
| gpio_expander_result.FormatDescription().c_str()); |
| return ZX_ERR_INTERNAL; |
| } |
| |
| return ZX_OK; |
| } |
| |
| } // namespace vim3 |
