| // Copyright (c) 2013 The Chromium OS 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 "mist/usb_modem_switch_context.h" |
| |
| #include <memory> |
| |
| #include <base/strings/stringprintf.h> |
| #include <brillo/udev/udev.h> |
| #include <brillo/udev/udev_device.h> |
| |
| #include "mist/config_loader.h" |
| #include "mist/context.h" |
| #include "mist/proto_bindings/usb_modem_info.pb.h" |
| #include "mist/usb_device_event_notifier.h" |
| |
| namespace mist { |
| |
| UsbModemSwitchContext::UsbModemSwitchContext() |
| : bus_number_(0), |
| device_address_(0), |
| vendor_id_(0), |
| product_id_(0), |
| modem_info_(nullptr) {} |
| |
| UsbModemSwitchContext::UsbModemSwitchContext(const std::string& sys_path, |
| uint8_t bus_number, |
| uint8_t device_address, |
| uint16_t vendor_id, |
| uint16_t product_id, |
| const UsbModemInfo* modem_info) |
| : sys_path_(sys_path), |
| bus_number_(bus_number), |
| device_address_(device_address), |
| vendor_id_(vendor_id), |
| product_id_(product_id), |
| modem_info_(modem_info) {} |
| |
| bool UsbModemSwitchContext::InitializeFromSysPath(const Context* context, |
| const std::string& sys_path) { |
| CHECK(context); |
| |
| std::unique_ptr<brillo::UdevDevice> device( |
| context->udev()->CreateDeviceFromSysPath(sys_path.c_str())); |
| if (!device) { |
| VLOG(1) << "Could not find device '" << sys_path << "'."; |
| return false; |
| } |
| |
| uint8_t bus_number; |
| uint8_t device_address; |
| uint16_t vendor_id; |
| uint16_t product_id; |
| if (!context->usb_device_event_notifier()->GetDeviceAttributes( |
| device.get(), &bus_number, &device_address, &vendor_id, |
| &product_id)) { |
| VLOG(1) << "Could not get attributes of device '" << sys_path << "'."; |
| return false; |
| } |
| |
| const UsbModemInfo* modem_info = |
| context->config_loader()->GetUsbModemInfo(vendor_id, product_id); |
| if (!modem_info) { |
| VLOG(1) << "Could not find USB modem info for device '" << sys_path << "'."; |
| return false; |
| } |
| |
| sys_path_ = sys_path; |
| bus_number_ = bus_number; |
| device_address_ = device_address; |
| vendor_id_ = vendor_id; |
| product_id_ = product_id; |
| modem_info_ = modem_info; |
| |
| VLOG(1) << base::StringPrintf( |
| "Initialized UsbModemSwitchContext(" |
| "SysPath=%s, " |
| "BusNumber=%03u, " |
| "DeviceAddress=%03u, " |
| "VendorId=0x%04x, " |
| "ProductId=0x%04x)", |
| sys_path_.c_str(), bus_number_, device_address_, vendor_id_, product_id_); |
| return true; |
| } |
| |
| } // namespace mist |