hidl/usb/Usb.h

   1 #ifndef ANDROID_HARDWARE_USB_V1_1_USB_H
   2 #define ANDROID_HARDWARE_USB_V1_1_USB_H
   3
   4 #include <android/hardware/usb/1.1/IUsb.h>
   5 #include <android/hardware/usb/1.1/types.h>
   6 #include <android/hardware/usb/1.1/IUsbCallback.h>
   7 #include <hidl/Status.h>
   8 #include <utils/Log.h>
   9
  10 #define UEVENT_MSG_LEN 2048
  11 // The type-c stack waits for 4.5 - 5.5 secs before declaring a port non-pd.
  12 // The -partner directory would not be created until this is done.
  13 // Having a margin of ~3 secs for the directory and other related bookeeping
  14 // structures created and uvent fired.
  15 #define PORT_TYPE_TIMEOUT 8
  16
  17 namespace android {
  18 namespace hardware {
  19 namespace usb {
  20 namespace V1_1 {
  21 namespace implementation {
  22
  23 using ::android::hardware::usb::V1_0::PortRole;
  24 using ::android::hardware::usb::V1_0::PortRoleType;
  25 using ::android::hardware::usb::V1_0::PortDataRole;
  26 using ::android::hardware::usb::V1_0::PortPowerRole;
  27 using ::android::hardware::usb::V1_0::Status;
  28 using ::android::hardware::usb::V1_0::IUsb;
  29 using ::android::hardware::usb::V1_1::IUsbCallback;
  30 using ::android::hardware::usb::V1_1::PortMode_1_1;
  31 using ::android::hardware::usb::V1_1::PortStatus_1_1;
  32 using ::android::hidl::base::V1_0::DebugInfo;
  33 using ::android::hidl::base::V1_0::IBase;
  34 using ::android::hardware::hidl_array;
  35 using ::android::hardware::hidl_memory;
  36 using ::android::hardware::hidl_string;
  37 using ::android::hardware::hidl_vec;
  38 using ::android::hardware::Return;
  39 using ::android::hardware::Void;
  40 using ::android::sp;
  41
  42 struct Usb : public IUsb {
  43     Return<void> switchRole(const hidl_string& portName, const PortRole& role) override;
  44     Return<void> setCallback(const sp<V1_0::IUsbCallback>& callback) override;
  45     Return<void> queryPortStatus() override;
  46
  47
  48     sp<V1_0::IUsbCallback> mCallback_1_0;
  49     // Protects mCallback variable
  50     pthread_mutex_t mLock = PTHREAD_MUTEX_INITIALIZER;
  51     // Protects roleSwitch operation
  52     pthread_mutex_t mRoleSwitchLock = PTHREAD_MUTEX_INITIALIZER;
  53     // Threads waiting for the partner to come back wait here
  54     pthread_cond_t mPartnerCV = PTHREAD_COND_INITIALIZER;
  55     // lock protecting mPartnerCV
  56     pthread_mutex_t mPartnerLock = PTHREAD_MUTEX_INITIALIZER;
  57     // Variable to signal partner coming back online after type switch
  58     bool mPartnerUp;
  59
  60     private:
  61         pthread_t mPoll;
  62 };
  63
  64 }  // namespace implementation
  65 }  // namespace V1_0
  66 }  // namespace usb
  67 }  // namespace hardware
  68 }  // namespace android
  69
  70 #endif  // ANDROID_HARDWARE_USB_V1_1_USB_H