/** @file
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Header file for the ChaosKey hardware random number generator.
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Copyright (c) 2016 - 2017, Linaro Ltd. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _CHAOSKEY_USB_HWRNG_DRIVER_H_
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#define _CHAOSKEY_USB_HWRNG_DRIVER_H_
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#include <Uefi.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Protocol/Rng.h>
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#include <Protocol/UsbIo.h>
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#define CHAOSKEY_VENDOR_ID 0x1d50 /* OpenMoko */
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#define CHAOSKEY_PRODUCT_ID 0x60c6 /* ChaosKey */
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#define CHAOSKEY_TIMEOUT 10 // ms
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#define CHAOSKEY_MAX_EP_SIZE 64 // max EP size for full-speed devices
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#define CHAOSKEY_DEV_SIGNATURE SIGNATURE_32('c','h','k','e')
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typedef struct {
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UINT32 Signature;
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UINT16 EndpointAddress;
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UINT16 EndpointSize;
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EFI_USB_IO_PROTOCOL *UsbIo;
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EFI_RNG_PROTOCOL Rng;
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} CHAOSKEY_DEV;
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#define CHAOSKEY_DEV_FROM_THIS(a) \
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CR(a, CHAOSKEY_DEV, Rng, CHAOSKEY_DEV_SIGNATURE)
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extern EFI_COMPONENT_NAME2_PROTOCOL gChaosKeyDriverComponentName2;
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EFI_STATUS
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ChaosKeyInit (
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IN EFI_HANDLE DriverBindingHandle,
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IN EFI_HANDLE ControllerHandle
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);
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EFI_STATUS
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ChaosKeyRelease (
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IN EFI_HANDLE DriverBindingHandle,
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IN EFI_HANDLE ControllerHandle
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);
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#endif // _CHAOSKEY_USB_HWRNG_DRIVER_H_
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