| // 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 "platform-proxy-device.h" |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <threads.h> |
| |
| #include <ddk/binding.h> |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/driver.h> |
| #include <ddk/protocol/clk.h> |
| #include <ddk/protocol/platform-bus.h> |
| #include <ddk/protocol/platform-device.h> |
| #include <ddk/protocol/usb-mode-switch.h> |
| #include <fbl/auto_call.h> |
| #include <fbl/unique_ptr.h> |
| |
| #include "platform-proxy.h" |
| #include "proxy-protocol.h" |
| |
| // The implementation of the platform bus protocol in this file is for use by |
| // drivers that exist in a proxy devhost and communicate with the platform bus |
| // over an RPC channel. |
| // |
| // More information can be found at the top of platform-device.cpp. |
| |
| namespace platform_bus { |
| |
| zx_status_t ProxyDevice::UmsSetMode(void* ctx, usb_mode_t mode) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_ums_req_t req = {}; |
| req.header.protocol = ZX_PROTOCOL_USB_MODE_SWITCH; |
| req.header.op = UMS_SET_MODE; |
| req.usb_mode = mode; |
| rpc_rsp_header_t resp; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp, sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::GpioConfig(void* ctx, uint32_t index, uint32_t flags) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_gpio_req_t req = {}; |
| rpc_gpio_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_GPIO; |
| req.header.op = GPIO_CONFIG; |
| req.index = index; |
| req.flags = flags; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::GpioSetAltFunction(void* ctx, uint32_t index, uint64_t function) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_gpio_req_t req = {}; |
| rpc_gpio_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_GPIO; |
| req.header.op = GPIO_SET_ALT_FUNCTION; |
| req.index = index; |
| req.alt_function = function; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::GpioGetInterrupt(void* ctx, uint32_t index, uint32_t flags, |
| zx_handle_t* out_handle) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_gpio_req_t req = {}; |
| rpc_gpio_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_GPIO; |
| req.header.op = GPIO_GET_INTERRUPT; |
| req.index = index; |
| req.flags = flags; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, sizeof(resp), |
| nullptr, 0, out_handle, 1, nullptr); |
| } |
| |
| zx_status_t ProxyDevice::GpioSetPolarity(void* ctx, uint32_t index, uint32_t polarity) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_gpio_req_t req = {}; |
| rpc_gpio_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_GPIO; |
| req.header.op = GPIO_SET_POLARITY; |
| req.index = index; |
| req.polarity = polarity; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::GpioReleaseInterrupt(void* ctx, uint32_t index) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_gpio_req_t req = {}; |
| rpc_gpio_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_GPIO; |
| req.header.op = GPIO_RELEASE_INTERRUPT; |
| req.index = index; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::GpioRead(void* ctx, uint32_t index, uint8_t* out_value) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_gpio_req_t req = {}; |
| rpc_gpio_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_GPIO; |
| req.header.op = GPIO_READ; |
| req.index = index; |
| |
| auto status = thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp)); |
| |
| if (status != ZX_OK) { |
| return status; |
| } |
| *out_value = resp.value; |
| return ZX_OK; |
| } |
| |
| zx_status_t ProxyDevice::GpioWrite(void* ctx, uint32_t index, uint8_t value) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_gpio_req_t req = {}; |
| rpc_gpio_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_GPIO; |
| req.header.op = GPIO_WRITE; |
| req.index = index; |
| req.value = value; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::CanvasConfig(void* ctx, zx_handle_t vmo, size_t offset, |
| canvas_info_t* info, uint8_t* canvas_idx) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_canvas_req_t req = {}; |
| rpc_canvas_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_CANVAS; |
| req.header.op = CANVAS_CONFIG; |
| |
| memcpy((void*)&req.info, info, sizeof(canvas_info_t)); |
| req.offset = offset; |
| |
| auto status = thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp), &vmo, 1, nullptr, 0, nullptr); |
| if (status == ZX_OK) { |
| *canvas_idx = resp.idx; |
| } |
| return status; |
| } |
| |
| zx_status_t ProxyDevice::CanvasFree(void* ctx, uint8_t canvas_idx) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_canvas_req_t req = {}; |
| rpc_canvas_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_CANVAS; |
| req.header.op = CANVAS_FREE; |
| req.idx = canvas_idx; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::I2cGetMaxTransferSize(void* ctx, uint32_t index, size_t* out_size) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_i2c_req_t req = {}; |
| rpc_i2c_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_I2C; |
| req.header.op = I2C_GET_MAX_TRANSFER; |
| req.index = index; |
| |
| auto status = thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp.header, |
| sizeof(resp)); |
| if (status == ZX_OK) { |
| *out_size = resp.max_transfer; |
| } |
| return status; |
| } |
| |
| zx_status_t ProxyDevice::I2cTransact(void* ctx, uint32_t index, const void* write_buf, |
| size_t write_length, size_t read_length, |
| i2c_complete_cb complete_cb, void* cookie) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| |
| if (!read_length && !write_length) { |
| return ZX_ERR_INVALID_ARGS; |
| } |
| if (write_length > I2C_MAX_TRANSFER_SIZE || read_length > I2C_MAX_TRANSFER_SIZE) { |
| return ZX_ERR_OUT_OF_RANGE; |
| } |
| |
| struct { |
| rpc_i2c_req_t i2c; |
| uint8_t data[I2C_MAX_TRANSFER_SIZE]; |
| } req = {}; |
| req.i2c.header.protocol = ZX_PROTOCOL_I2C; |
| req.i2c.header.op = I2C_TRANSACT; |
| req.i2c.index = index; |
| req.i2c.write_length = write_length; |
| req.i2c.read_length = read_length; |
| req.i2c.complete_cb = complete_cb; |
| req.i2c.cookie = cookie; |
| struct { |
| rpc_i2c_rsp_t i2c; |
| uint8_t data[I2C_MAX_TRANSFER_SIZE]; |
| } resp; |
| |
| if (write_length) { |
| memcpy(req.data, write_buf, write_length); |
| } |
| uint32_t actual; |
| auto status = thiz->proxy_->Rpc(thiz->device_id_, &req.i2c.header, |
| static_cast<uint32_t>(sizeof(req.i2c) + write_length), |
| &resp.i2c.header, sizeof(resp), nullptr, 0, nullptr, 0, |
| &actual); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| // TODO(voydanoff) This proxying code actually implements i2c_transact synchronously |
| // due to the fact that it is unsafe to respond asynchronously on the devmgr rxrpc channel. |
| // In the future we may want to redo the plumbing to allow this to be truly asynchronous. |
| |
| if (actual - sizeof(resp.i2c) != read_length) { |
| status = ZX_ERR_INTERNAL; |
| } else { |
| status = resp.i2c.header.status; |
| } |
| if (complete_cb) { |
| complete_cb(status, resp.data, resp.i2c.cookie); |
| } |
| |
| return ZX_OK; |
| } |
| |
| zx_status_t ProxyDevice::ClkEnable(void* ctx, uint32_t index) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_clk_req_t req = {}; |
| rpc_rsp_header_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_CLK; |
| req.header.op = CLK_ENABLE; |
| req.index = index; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp, sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::ClkDisable(void* ctx, uint32_t index) { |
| ProxyDevice* thiz = static_cast<ProxyDevice*>(ctx); |
| rpc_clk_req_t req = {}; |
| rpc_rsp_header_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_CLK; |
| req.header.op = CLK_DISABLE; |
| req.index = index; |
| |
| return thiz->proxy_->Rpc(thiz->device_id_, &req.header, sizeof(req), &resp, sizeof(resp)); |
| } |
| |
| zx_status_t ProxyDevice::MapMmio(uint32_t index, uint32_t cache_policy, void** out_vaddr, |
| size_t* out_size, zx_paddr_t* out_paddr, |
| zx_handle_t* out_handle) { |
| if (index >= mmios_.size()) { |
| return ZX_ERR_OUT_OF_RANGE; |
| } |
| |
| Mmio* mmio = &mmios_[index]; |
| zx_paddr_t vmo_base = ROUNDDOWN(mmio->base, PAGE_SIZE); |
| size_t vmo_size = ROUNDUP(mmio->base + mmio->length - vmo_base, PAGE_SIZE); |
| zx_handle_t vmo_handle; |
| |
| zx_status_t status = zx_vmo_create_physical(mmio->resource.get(), vmo_base, vmo_size, |
| &vmo_handle); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s %s: creating vmo failed %d\n", name_, __FUNCTION__, status); |
| return status; |
| } |
| |
| char name[32]; |
| snprintf(name, sizeof(name), "%s mmio %u", name_, index); |
| status = zx_object_set_property(vmo_handle, ZX_PROP_NAME, name, sizeof(name)); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s %s: setting vmo name failed %d\n", name_, __FUNCTION__, status); |
| goto fail; |
| } |
| |
| status = zx_vmo_set_cache_policy(vmo_handle, cache_policy); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s %s: setting cache policy failed %d\n", name_, __FUNCTION__, status); |
| goto fail; |
| } |
| |
| uintptr_t virt; |
| status = zx_vmar_map(zx_vmar_root_self(), 0, vmo_handle, 0, vmo_size, |
| ZX_VM_FLAG_PERM_READ | ZX_VM_FLAG_PERM_WRITE | ZX_VM_FLAG_MAP_RANGE, |
| &virt); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s %s: mapping vmar failed %d\n", name_, __FUNCTION__, status); |
| goto fail; |
| } |
| |
| *out_size = mmio->length; |
| if (out_paddr) { |
| *out_paddr = mmio->base; |
| } |
| *out_vaddr = reinterpret_cast<void*>(virt + (mmio->base - vmo_base)); |
| *out_handle = vmo_handle; |
| return ZX_OK; |
| |
| fail: |
| zx_handle_close(vmo_handle); |
| return status; |
| } |
| |
| zx_status_t ProxyDevice::MapInterrupt(uint32_t index, uint32_t flags, zx_handle_t* out_handle) { |
| if (index >= irqs_.size()) { |
| return ZX_ERR_OUT_OF_RANGE; |
| } |
| |
| Irq* irq = &irqs_[index]; |
| if (flags == 0) { |
| flags = irq->mode; |
| } |
| zx_handle_t handle; |
| zx_status_t status = zx_interrupt_create(irq->resource.get(), irq->irq, flags, &handle); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s %s: creating interrupt failed: %d\n", name_, __FUNCTION__, status); |
| return status; |
| } |
| |
| *out_handle = handle; |
| return ZX_OK; |
| } |
| |
| zx_status_t ProxyDevice::GetBti(uint32_t index, zx_handle_t* out_handle) { |
| rpc_pdev_req_t req = {}; |
| rpc_pdev_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_PLATFORM_DEV; |
| req.header.op = PDEV_GET_BTI; |
| req.index = index; |
| |
| return proxy_->Rpc(device_id_, &req.header, sizeof(req), &resp.header, sizeof(resp), nullptr, 0, |
| out_handle, 1, nullptr); |
| } |
| |
| zx_status_t ProxyDevice::GetDeviceInfo(pdev_device_info_t* out_info) { |
| rpc_pdev_req_t req = {}; |
| rpc_pdev_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_PLATFORM_DEV; |
| req.header.op = PDEV_GET_DEVICE_INFO; |
| |
| auto status = proxy_->Rpc(device_id_, &req.header, sizeof(req), &resp.header, sizeof(resp)); |
| if (status != ZX_OK) { |
| return status; |
| } |
| memcpy(out_info, &resp.device_info, sizeof(*out_info)); |
| return ZX_OK; |
| } |
| |
| zx_status_t ProxyDevice::GetBoardInfo(pdev_board_info_t* out_info) { |
| rpc_pdev_req_t req = {}; |
| rpc_pdev_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_PLATFORM_DEV; |
| req.header.op = PDEV_GET_BOARD_INFO; |
| |
| auto status = proxy_->Rpc(device_id_, &req.header, sizeof(req), &resp.header, sizeof(resp)); |
| if (status != ZX_OK) { |
| return status; |
| } |
| memcpy(out_info, &resp.board_info, sizeof(*out_info)); |
| return ZX_OK; |
| } |
| |
| zx_status_t ProxyDevice::DeviceAdd(uint32_t index, device_add_args_t* args, zx_device_t** out) { |
| rpc_pdev_req_t req = {}; |
| rpc_pdev_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_PLATFORM_DEV; |
| req.header.op = PDEV_DEVICE_ADD; |
| req.index = index; |
| |
| auto status = proxy_->Rpc(device_id_, &req.header, sizeof(req), &resp.header, sizeof(resp)); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| // TODO(voydanoff) We need to provide a way for metadata passed from the platform bus |
| // to be attached to this new device. |
| return Create(zxdev(), resp.device_id, proxy_, args); |
| } |
| |
| zx_status_t ProxyDevice::Create(zx_device_t* parent, uint32_t device_id, |
| fbl::RefPtr<PlatformProxy> proxy, device_add_args_t* args) { |
| fbl::AllocChecker ac; |
| fbl::unique_ptr<platform_bus::ProxyDevice> dev(new (&ac) |
| platform_bus::ProxyDevice(parent, device_id, proxy)); |
| if (!ac.check()) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| auto status = dev->Init(args); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| // devmgr is now in charge of the device. |
| __UNUSED auto* dummy = dev.release(); |
| return ZX_OK; |
| } |
| |
| ProxyDevice::ProxyDevice(zx_device_t* parent, uint32_t device_id, |
| fbl::RefPtr<PlatformProxy> proxy) |
| : ProxyDeviceType(parent), device_id_(device_id), proxy_(proxy) { |
| // Initialize protocol ops |
| canvas_proto_ops_.config = CanvasConfig; |
| canvas_proto_ops_.free = CanvasFree; |
| clk_proto_ops_.enable = ClkEnable; |
| clk_proto_ops_.disable = ClkDisable; |
| gpio_proto_ops_.config = GpioConfig; |
| gpio_proto_ops_.set_alt_function = GpioSetAltFunction; |
| gpio_proto_ops_.read = GpioRead; |
| gpio_proto_ops_.write = GpioWrite; |
| gpio_proto_ops_.get_interrupt = GpioGetInterrupt; |
| gpio_proto_ops_.release_interrupt = GpioReleaseInterrupt; |
| gpio_proto_ops_.set_polarity = GpioSetPolarity; |
| i2c_proto_ops_.transact = I2cTransact; |
| i2c_proto_ops_.get_max_transfer_size = I2cGetMaxTransferSize; |
| usb_mode_switch_proto_ops_.set_mode = UmsSetMode; |
| } |
| |
| zx_status_t ProxyDevice::Init(device_add_args_t* args) { |
| pdev_device_info_t info; |
| auto status = GetDeviceInfo(&info); |
| if (status != ZX_OK) { |
| return status; |
| } |
| memcpy(name_, info.name, sizeof(name_)); |
| |
| fbl::AllocChecker ac; |
| |
| for (uint32_t i = 0; i < info.mmio_count; i++) { |
| rpc_pdev_req_t req = {}; |
| rpc_pdev_rsp_t resp = {}; |
| zx_handle_t rsrc_handle; |
| |
| req.header.protocol = ZX_PROTOCOL_PLATFORM_DEV; |
| req.header.op = PDEV_GET_MMIO; |
| req.index = i; |
| status = proxy_->Rpc(device_id_, &req.header, sizeof(req), &resp.header, sizeof(resp), |
| NULL, 0, &rsrc_handle, 1, NULL); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| Mmio mmio; |
| mmio.base = resp.paddr; |
| mmio.length = resp.length; |
| mmio.resource.reset(rsrc_handle); |
| mmios_.push_back(fbl::move(mmio), &ac); |
| if (!ac.check()) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| zxlogf(SPEW, "%s: received MMIO %u (base %#lx length %#lx handle %#x)\n", name_, i, |
| mmio.base, mmio.length, mmio.resource.get()); |
| } |
| |
| for (uint32_t i = 0; i < info.irq_count; i++) { |
| rpc_pdev_req_t req = {}; |
| rpc_pdev_rsp_t resp = {}; |
| zx_handle_t rsrc_handle; |
| |
| req.header.protocol = ZX_PROTOCOL_PLATFORM_DEV; |
| req.header.op = PDEV_GET_INTERRUPT; |
| req.index = i; |
| status = proxy_->Rpc(device_id_, &req.header, sizeof(req), &resp.header, sizeof(resp), |
| NULL, 0, &rsrc_handle, 1, NULL); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| Irq irq; |
| irq.irq = resp.irq; |
| irq.mode = resp.mode; |
| irq.resource.reset(rsrc_handle); |
| irqs_.push_back(fbl::move(irq), &ac); |
| if (!ac.check()) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| zxlogf(SPEW, "%s: received IRQ %u (irq %#x handle %#x)\n", name_, i, irq.irq, |
| irq.resource.get()); |
| } |
| |
| if (args == nullptr) { |
| // Code path for root ProxyDevice. |
| return DdkAdd(name_); |
| } |
| |
| // Code path for child ProxyDevices. |
| ctx_ = args->ctx; |
| device_ops_ = args->ops; |
| proto_id_ = args->proto_id; |
| proto_ops_ = args->proto_ops; |
| |
| if (info.metadata_count == 0) { |
| return DdkAdd(args->name, args->flags, args->props, args->prop_count); |
| } |
| |
| status = DdkAdd(args->name, args->flags | DEVICE_ADD_INVISIBLE, args->props, |
| args->prop_count); |
| if (status != ZX_OK) { |
| return status; |
| } |
| // Remove ourselves from the devmgr if something goes wrong. |
| auto cleanup = fbl::MakeAutoCall([this]() { DdkRemove(); }); |
| |
| for (uint32_t i = 0; i < info.metadata_count; i++) { |
| rpc_pdev_req_t req = {}; |
| rpc_pdev_metadata_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_PLATFORM_DEV; |
| req.header.op = PDEV_GET_METADATA; |
| req.index = i; |
| |
| status = proxy_->Rpc(device_id_, &req.header, sizeof(req), &resp.pdev.header, |
| sizeof(resp)); |
| if (status != ZX_OK) { |
| return status; |
| } |
| status = DdkAddMetadata(resp.pdev.metadata_type, resp.metadata, |
| resp.pdev.metadata_length); |
| if (status != ZX_OK) { |
| return status; |
| } |
| } |
| |
| cleanup.cancel(); |
| // Make ourselves visible after all metadata has been added successfully. |
| DdkMakeVisible(); |
| return ZX_OK; |
| } |
| |
| zx_status_t ProxyDevice::DdkGetProtocol(uint32_t proto_id, void* out) { |
| auto* proto = static_cast<ddk::AnyProtocol*>(out); |
| |
| // Try driver's get_protocol() first, if it is implemented. |
| if (device_ops_ && device_ops_->get_protocol) { |
| if (device_ops_->get_protocol(ctx_, proto_id, out) == ZX_OK) { |
| return ZX_OK; |
| } |
| } |
| |
| // Next try driver's primary protocol. |
| if (proto_ops_ && proto_id_ == proto_id) { |
| proto->ops = proto_ops_; |
| proto->ctx = ctx_; |
| return ZX_OK; |
| } |
| |
| // Finally, protocols provided by platform bus. |
| switch (proto_id) { |
| case ZX_PROTOCOL_PLATFORM_DEV: { |
| proto->ops = &pdev_proto_ops_; |
| break; |
| } |
| case ZX_PROTOCOL_USB_MODE_SWITCH: { |
| proto->ops = &usb_mode_switch_proto_ops_; |
| break; |
| } |
| case ZX_PROTOCOL_GPIO: { |
| proto->ops = &gpio_proto_ops_; |
| break; |
| } |
| case ZX_PROTOCOL_I2C: { |
| proto->ops = &i2c_proto_ops_; |
| break; |
| } |
| case ZX_PROTOCOL_CLK: { |
| proto->ops = &clk_proto_ops_; |
| break; |
| } |
| case ZX_PROTOCOL_CANVAS: { |
| proto->ops = &canvas_proto_ops_; |
| break; |
| } |
| default: |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| proto->ctx = this; |
| return ZX_OK; |
| } |
| |
| zx_status_t ProxyDevice::DdkOpen(zx_device_t** dev_out, uint32_t flags) { |
| if (device_ops_ && device_ops_->open) { |
| return device_ops_->open(ctx_, dev_out, flags); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| zx_status_t ProxyDevice::DdkOpenAt(zx_device_t** dev_out, const char* path, uint32_t flags) { |
| if (device_ops_ && device_ops_->open_at) { |
| return device_ops_->open_at(ctx_, dev_out, path, flags); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| zx_status_t ProxyDevice::DdkClose(uint32_t flags) { |
| if (device_ops_ && device_ops_->close) { |
| return device_ops_->close(ctx_, flags); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| void ProxyDevice::DdkUnbind() { |
| if (device_ops_ && device_ops_->unbind) { |
| device_ops_->unbind(ctx_); |
| } |
| } |
| |
| void ProxyDevice::DdkRelease() { |
| if (device_ops_ && device_ops_->release) { |
| device_ops_->release(ctx_); |
| } |
| delete this; |
| } |
| |
| zx_status_t ProxyDevice::DdkRead(void* buf, size_t count, zx_off_t off, size_t* actual) { |
| if (device_ops_ && device_ops_->read) { |
| return device_ops_->read(ctx_, buf, count, off, actual); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| zx_status_t ProxyDevice::DdkWrite(const void* buf, size_t count, zx_off_t off, size_t* actual) { |
| if (device_ops_ && device_ops_->write) { |
| return device_ops_->write(ctx_, buf, count, off, actual); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| zx_off_t ProxyDevice::DdkGetSize() { |
| if (device_ops_ && device_ops_->get_size) { |
| return device_ops_->get_size(ctx_); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| zx_status_t ProxyDevice::DdkIoctl(uint32_t op, const void* in_buf, size_t in_len, void* out_buf, |
| size_t out_len, size_t* actual) { |
| if (device_ops_ && device_ops_->ioctl) { |
| return device_ops_->ioctl(ctx_, op, in_buf, in_len, out_buf, out_len, actual); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| zx_status_t ProxyDevice::DdkSuspend(uint32_t flags) { |
| if (device_ops_ && device_ops_->suspend) { |
| return device_ops_->suspend(ctx_, flags); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| zx_status_t ProxyDevice::DdkResume(uint32_t flags) { |
| if (device_ops_ && device_ops_->resume) { |
| return device_ops_->resume(ctx_, flags); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| zx_status_t ProxyDevice::DdkRxrpc(zx_handle_t channel) { |
| if (device_ops_ && device_ops_->rxrpc) { |
| return device_ops_->rxrpc(ctx_, channel); |
| } |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| |
| } // namespace platform_bus |
