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| author | Andreas Kling <kling@serenityos.org> | 2020-09-04 18:58:37 +0200 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2020-09-04 21:21:46 +0200 |
| commit | 1254447bd7a3f5b36bae85824b2ba68caaf3b9b5 (patch) | |
| tree | 5485ccd698e62bb1847d8e1aca4c9bb22d043f5e /Kernel/Devices | |
| parent | e834c24eea2ca87e35f4c0f8c9bbdf007d859372 (diff) | |
| download | serenity-1254447bd7a3f5b36bae85824b2ba68caaf3b9b5.zip | |
Kernel/USB: Add some constants for the USBCMD and USBSTS bits
Diffstat (limited to 'Kernel/Devices')
| -rw-r--r-- | Kernel/Devices/UHCIController.cpp | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/Kernel/Devices/UHCIController.cpp b/Kernel/Devices/UHCIController.cpp index 5b1b118cb1..192eab8829 100644 --- a/Kernel/Devices/UHCIController.cpp +++ b/Kernel/Devices/UHCIController.cpp @@ -28,7 +28,21 @@ namespace Kernel { -static constexpr u16 UHCI_HOST_CONTROLLER_RESET = 0x0002; +static constexpr u16 UHCI_USBCMD_RUN = 0x0001; +static constexpr u16 UHCI_USBCMD_HOST_CONTROLLER_RESET = 0x0002; +static constexpr u16 UHCI_USBCMD_GLOBAL_RESET = 0x0004; +static constexpr u16 UHCI_USBCMD_ENTER_GLOBAL_SUSPEND_MODE = 0x0008; +static constexpr u16 UHCI_USBCMD_FORCE_GLOBAL_RESUME = 0x0010; +static constexpr u16 UHCI_USBCMD_SOFTWARE_DEBUG = 0x0020; +static constexpr u16 UHCI_USBCMD_CONFIGURE_FLAG = 0x0040; +static constexpr u16 UHCI_USBCMD_MAX_PACKET = 0x0080; + +static constexpr u16 UHCI_USBSTS_HOST_CONTROLLER_HALTED = 0x0020; +static constexpr u16 UHCI_USBSTS_HOST_CONTROLLER_PROCESS_ERROR = 0x0010; +static constexpr u16 UHCI_USBSTS_PCI_BUS_ERROR = 0x0008; +static constexpr u16 UHCI_USBSTS_RESUME_RECEIVED = 0x0004; +static constexpr u16 UHCI_USBSTS_USB_ERROR_INTERRUPT = 0x0002; +static constexpr u16 UHCI_USBSTS_USB_INTERRUPT = 0x0001; void UHCIController::detect() { @@ -59,10 +73,11 @@ UHCIController::~UHCIController() void UHCIController::reset() { - write_usbcmd(UHCI_HOST_CONTROLLER_RESET); + write_usbcmd(UHCI_USBCMD_HOST_CONTROLLER_RESET); + // FIXME: Timeout for (;;) { - if (read_usbcmd() & UHCI_HOST_CONTROLLER_RESET) + if (read_usbcmd() & UHCI_USBCMD_HOST_CONTROLLER_RESET) continue; break; } |