| // Copyright 2017 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 <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/platform-bus.h> |
| #include <ddk/protocol/platform-device.h> |
| #include <ddk/protocol/clk.h> |
| #include <ddk/protocol/usb-mode-switch.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.c. |
| |
| namespace platform_bus { |
| |
| zx_status_t PlatformProxy::Rpc(rpc_req_header_t* req, uint32_t req_length, rpc_rsp_header_t* resp, |
| uint32_t resp_length, zx_handle_t* in_handles, |
| uint32_t in_handle_count, zx_handle_t* out_handles, |
| uint32_t out_handle_count, uint32_t* out_actual) { |
| uint32_t resp_size, handle_count; |
| |
| zx_channel_call_args_t args = { |
| .wr_bytes = req, |
| .wr_handles = in_handles, |
| .rd_bytes = resp, |
| .rd_handles = out_handles, |
| .wr_num_bytes = req_length, |
| .wr_num_handles = in_handle_count, |
| .rd_num_bytes = resp_length, |
| .rd_num_handles = out_handle_count, |
| }; |
| auto status = rpc_channel_.call(0, zx::time::infinite(), &args, &resp_size, &handle_count); |
| if (status != ZX_OK) { |
| return status; |
| } else if (resp_size < sizeof(*resp)) { |
| zxlogf(ERROR, "%s: PlatformProxy::Rpc resp_size too short: %u\n", name_, resp_size); |
| status = ZX_ERR_INTERNAL; |
| goto fail; |
| } else if (handle_count != out_handle_count) { |
| zxlogf(ERROR, "%s: PlatformProxy::Rpc handle count %u expected %u\n", name_, handle_count, |
| out_handle_count); |
| status = ZX_ERR_INTERNAL; |
| goto fail; |
| } |
| |
| status = resp->status; |
| if (out_actual) { |
| *out_actual = resp_size; |
| } |
| |
| fail: |
| if (status != ZX_OK) { |
| for (uint32_t i = 0; i < handle_count; i++) { |
| zx_handle_close(out_handles[i]); |
| } |
| } |
| return status; |
| } |
| |
| zx_status_t PlatformProxy::UmsSetMode(usb_mode_t mode) { |
| 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 Rpc(&req.header, sizeof(req), &resp, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::GpioConfig(uint32_t index, uint32_t flags) { |
| 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 Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::GpioSetAltFunction(uint32_t index, uint64_t function) { |
| 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 Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::GpioGetInterrupt(uint32_t index, uint32_t flags, |
| zx_handle_t* out_handle) { |
| 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 Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp), nullptr, 0, out_handle, 1, |
| nullptr); |
| } |
| |
| zx_status_t PlatformProxy::GpioSetPolarity(uint32_t index, uint32_t polarity) { |
| 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 Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::GpioReleaseInterrupt(uint32_t index) { |
| 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 Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::GpioRead(uint32_t index, uint8_t* out_value) { |
| 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 = Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| |
| if (status != ZX_OK) { |
| return status; |
| } |
| *out_value = resp.value; |
| return ZX_OK; |
| } |
| |
| zx_status_t PlatformProxy::GpioWrite(uint32_t index, uint8_t value) { |
| 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 Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::ScpiGetSensorValue(uint32_t sensor_id, uint32_t* sensor_value) { |
| rpc_scpi_req_t req = {}; |
| rpc_scpi_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_SCPI; |
| req.header.op = SCPI_GET_SENSOR_VALUE; |
| req.sensor_id = sensor_id; |
| |
| auto status = Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| if (status == ZX_OK) { |
| *sensor_value = resp.sensor_value; |
| } |
| return status; |
| } |
| |
| zx_status_t PlatformProxy::ScpiGetSensor(const char* name, uint32_t* sensor_id) { |
| rpc_scpi_req_t req = {}; |
| rpc_scpi_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_SCPI; |
| req.header.op = SCPI_GET_SENSOR; |
| uint32_t max_len = sizeof(req.name); |
| size_t len = strnlen(name, max_len); |
| if (len >= max_len) { |
| return ZX_ERR_BUFFER_TOO_SMALL; |
| } |
| memcpy(&req.name, name, len + 1); |
| |
| auto status = Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| if (status == ZX_OK) { |
| *sensor_id = resp.sensor_id; |
| } |
| return status; |
| } |
| |
| zx_status_t PlatformProxy::ScpiGetDvfsInfo(uint8_t power_domain, scpi_opp_t* opps) { |
| rpc_scpi_req_t req = {}; |
| rpc_scpi_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_SCPI; |
| req.header.op = SCPI_GET_DVFS_INFO; |
| req.power_domain = power_domain; |
| |
| auto status = Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| if (status == ZX_OK) { |
| memcpy(opps, &resp.opps, sizeof(scpi_opp_t)); |
| } |
| return status; |
| } |
| |
| zx_status_t PlatformProxy::ScpiGetDvfsIdx(uint8_t power_domain, uint16_t* idx) { |
| rpc_scpi_req_t req = {}; |
| rpc_scpi_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_SCPI; |
| req.header.op = SCPI_GET_DVFS_IDX; |
| req.power_domain = power_domain; |
| |
| auto status = Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| if (status == ZX_OK) { |
| *idx = resp.dvfs_idx; |
| } |
| return status; |
| } |
| |
| zx_status_t PlatformProxy::ScpiSetDvfsIdx(uint8_t power_domain, uint16_t idx) { |
| rpc_scpi_req_t req = {}; |
| rpc_scpi_rsp_t resp = {}; |
| req.header.protocol = ZX_PROTOCOL_SCPI; |
| req.header.op = SCPI_SET_DVFS_IDX; |
| req.power_domain = power_domain; |
| req.idx = idx; |
| |
| return Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::CanvasConfig(zx_handle_t vmo, size_t offset, canvas_info_t* info, |
| uint8_t* canvas_idx) { |
| 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 = Rpc(&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 PlatformProxy::CanvasFree(uint8_t canvas_idx) { |
| 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 Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::I2cGetMaxTransferSize(uint32_t index, size_t* out_size) { |
| 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 = Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp)); |
| if (status == ZX_OK) { |
| *out_size = resp.max_transfer; |
| } |
| return status; |
| } |
| |
| zx_status_t PlatformProxy::I2cTransact(uint32_t index, const void* write_buf, size_t write_length, |
| size_t read_length, i2c_complete_cb complete_cb, |
| void* cookie) { |
| 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 = { |
| .i2c = { |
| .header = { |
| .txid = 0, |
| .protocol = ZX_PROTOCOL_I2C, |
| .op = I2C_TRANSACT, |
| }, |
| .index = index, |
| .write_length = write_length, |
| .read_length = read_length, |
| .complete_cb = complete_cb, |
| .cookie = cookie, |
| }, |
| .data = {}, |
| }; |
| 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 = Rpc(&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 PlatformProxy::ClkEnable(uint32_t index) { |
| 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 Rpc(&req.header, sizeof(req), &resp, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::ClkDisable(uint32_t index) { |
| 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 Rpc(&req.header, sizeof(req), &resp, sizeof(resp)); |
| } |
| |
| zx_status_t PlatformProxy::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 = (void *)(virt + (mmio->base - vmo_base)); |
| *out_handle = vmo_handle; |
| return ZX_OK; |
| |
| fail: |
| zx_handle_close(vmo_handle); |
| return status; |
| } |
| |
| zx_status_t PlatformProxy::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 PlatformProxy::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 Rpc(&req.header, sizeof(req), &resp.header, sizeof(resp), nullptr, 0, out_handle, 1, |
| nullptr); |
| } |
| |
| zx_status_t PlatformProxy::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 = Rpc(&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 PlatformProxy::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 = Rpc(&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 PlatformProxy::Create(zx_device_t* parent, const char* name, zx_handle_t rpc_channel) { |
| fbl::AllocChecker ac; |
| fbl::unique_ptr<platform_bus::PlatformProxy> proxy(new (&ac) |
| platform_bus::PlatformProxy(parent, rpc_channel)); |
| if (!ac.check()) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| auto status = proxy->Init(); |
| if (status != ZX_OK) { |
| return status; |
| } |
| |
| // devmgr is now in charge of the device. |
| __UNUSED auto* dummy = proxy.release(); |
| return ZX_OK; |
| } |
| |
| zx_status_t PlatformProxy::Init() { |
| pdev_device_info_t info; |
| auto status = GetDeviceInfo(&info); |
| if (status != ZX_OK) { |
| return status; |
| } |
| memcpy(name_, info.name, sizeof(name_)); |
| |
| fbl::AllocChecker ac; |
| |
| if (info.mmio_count) { |
| 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 = Rpc(&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()); |
| } |
| } |
| |
| if (info.irq_count) { |
| 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 = Rpc(&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()); |
| } |
| } |
| |
| return DdkAdd(name_); |
| } |
| |
| zx_status_t PlatformProxy::DdkGetProtocol(uint32_t proto_id, void* out) { |
| auto* proto = static_cast<ddk::AnyProtocol*>(out); |
| proto->ctx = this; |
| |
| switch (proto_id) { |
| case ZX_PROTOCOL_PLATFORM_DEV: { |
| proto->ops = &pdev_proto_ops_; |
| return ZX_OK; |
| } |
| case ZX_PROTOCOL_USB_MODE_SWITCH: { |
| proto->ops = &usb_mode_switch_proto_ops_; |
| return ZX_OK; |
| } |
| case ZX_PROTOCOL_GPIO: { |
| proto->ops = &gpio_proto_ops_; |
| return ZX_OK; |
| } |
| case ZX_PROTOCOL_I2C: { |
| proto->ops = &i2c_proto_ops_; |
| return ZX_OK; |
| } |
| case ZX_PROTOCOL_CLK: { |
| proto->ops = &clk_proto_ops_; |
| return ZX_OK; |
| } |
| case ZX_PROTOCOL_SCPI: { |
| proto->ops = &scpi_proto_ops_; |
| return ZX_OK; |
| } |
| case ZX_PROTOCOL_CANVAS: { |
| proto->ops = &canvas_proto_ops_; |
| return ZX_OK; |
| } |
| default: |
| return ZX_ERR_NOT_SUPPORTED; |
| } |
| } |
| |
| void PlatformProxy::DdkRelease() { |
| delete this; |
| } |
| |
| } // namespace platform_bus |
| |
| zx_status_t platform_proxy_create(void* ctx, zx_device_t* parent, const char* name, |
| const char* args, zx_handle_t rpc_channel) { |
| return platform_bus::PlatformProxy::Create(parent, name, rpc_channel); |
| } |
