| // 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 "madrone-usb.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/protocol/platform-defs.h> |
| #include <ddk/protocol/platform-device.h> |
| #include <ddktl/protocol/gpio.h> |
| #include <fbl/unique_ptr.h> |
| |
| namespace madrone_usb { |
| |
| zx_status_t MadroneUsb::Create(zx_device_t* parent) { |
| fbl::AllocChecker ac; |
| auto bus = fbl::make_unique_checked<MadroneUsb>(&ac, parent); |
| if (!ac.check()) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| auto status = bus->Init(); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| // devmgr is now in charge of the device. |
| __UNUSED auto* dummy = bus.release(); |
| return ZX_OK; |
| } |
| |
| zx_status_t MadroneUsb::Init() { |
| platform_device_protocol_t pdev; |
| |
| auto status = device_get_protocol(parent(), ZX_PROTOCOL_PLATFORM_DEV, &pdev); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| status = device_get_protocol(parent(), ZX_PROTOCOL_GPIO, &gpio_); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| ddk::GpioProtocolProxy gpio(&gpio_); |
| if (status != ZX_OK) { |
| return status; |
| } |
| status = gpio.Config(0, GPIO_DIR_IN | GPIO_TRIGGER_RISING | GPIO_TRIGGER_FALLING); |
| |
| status = gpio.GetInterrupt(0, ZX_INTERRUPT_MODE_EDGE_BOTH, interrupt_.reset_and_get_address()); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| zx_device_prop_t props[] = { |
| {BIND_PLATFORM_DEV_VID, 0, PDEV_VID_GENERIC}, |
| {BIND_PLATFORM_DEV_PID, 0, PDEV_PID_GENERIC}, |
| {BIND_PLATFORM_DEV_DID, 0, PDEV_DID_USB_DWC3}, |
| }; |
| |
| device_add_args_t args = {}; |
| args.version = DEVICE_ADD_ARGS_VERSION; |
| args.name = "dwc3"; |
| args.ctx = this; |
| args.ops = &ddk_device_proto_; |
| args.props = props; |
| args.prop_count = countof(props); |
| args.proto_id = ddk_proto_id_; |
| args.proto_ops = ddk_proto_ops_; |
| |
| status = pdev_device_add(&pdev, 0, &args, &zxdev_); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| auto thunk = [](void* arg) { return static_cast<MadroneUsb*>(arg)->InterruptThread(); }; |
| thrd_create_with_name(&interrupt_thread_, thunk, this, "MadroneUsb::InterruptThread"); |
| return ZX_OK; |
| } |
| |
| int MadroneUsb::InterruptThread() { |
| while (true) { |
| zx::time timestamp; |
| auto status = interrupt_.wait(×tamp); |
| printf("MadroneUsb::InterruptThread got %d\n", status); |
| } |
| return 0; |
| } |
| |
| zx_status_t MadroneUsb::UmsSetMode(usb_mode_t mode) { |
| /* |
| if (mode == usb_mode_) { |
| return ZX_OK; |
| } |
| if (mode == USB_MODE_OTG) { |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| ddk::GpioProtocolProxy gpio(&gpio_); |
| gpio.Write(HUB_VDD33_EN, mode == USB_MODE_HOST); |
| gpio.Write(VBUS_TYPEC, mode == USB_MODE_HOST); |
| gpio.Write(USBSW_SW_SEL, mode == USB_MODE_HOST); |
| |
| usb_mode_ = mode; |
| */ |
| return ZX_OK; |
| } |
| |
| void MadroneUsb::DdkRelease() { |
| delete this; |
| } |
| |
| } // namespace madrone_usb |
| |
| zx_status_t madrone_usb_bind(void* ctx, zx_device_t* parent) { |
| return madrone_usb::MadroneUsb::Create(parent); |
| } |