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EnderIce2
215
Kernel/core/panic/kbd/uhci.hpp
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215
Kernel/core/panic/kbd/uhci.hpp
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/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <ints.hpp>
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class CrashUHCIKeyboardDriver : public Interrupts::Handler
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{
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public:
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struct IORegisters
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{
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union
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{
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struct
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{
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uint16_t RS : 1;
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uint16_t HCRESET : 1;
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uint16_t GRESET : 1;
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uint16_t EGSM : 1;
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uint16_t FGR : 1;
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uint16_t SWDBG : 1;
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uint16_t CF : 1;
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uint16_t MAXP : 1;
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uint16_t __reserved0 : 8;
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} __packed;
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uint16_t raw;
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} USBCMD;
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union
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{
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struct
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{
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uint16_t USBINT : 1;
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uint16_t USBERRINT : 1;
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uint16_t RD : 1;
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uint16_t HSE : 1;
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uint16_t HCPE : 1;
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uint16_t HCH : 1;
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uint16_t __reserved0 : 10;
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} __packed;
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uint16_t raw;
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} USBSTS;
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union
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{
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struct
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{
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uint16_t TOCRC : 1;
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uint16_t RIE : 1;
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uint16_t IOCE : 1;
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uint16_t SPIE : 1;
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uint16_t __reserved0 : 12;
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} __packed;
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uint16_t raw;
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} USBINTR;
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union
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{
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struct
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{
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uint16_t FN : 9;
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uint16_t __reserved0 : 7;
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} __packed;
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uint16_t raw;
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} FRNUM;
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union
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{
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struct
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{
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uint32_t __reserved0 : 12;
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uint32_t BA : 20;
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} __packed;
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uint32_t raw;
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} FRBASEADD;
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union
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{
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struct
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{
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uint8_t SOFTVAL : 7;
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uint8_t __reserved0 : 1;
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} __packed;
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uint8_t raw;
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} SOFMOD;
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union
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{
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struct
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{
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uint16_t CCS : 1;
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uint16_t CSC : 1;
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uint16_t PE : 1;
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uint16_t PEC : 1;
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uint16_t LS : 1;
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uint16_t RD : 1;
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uint16_t __reserved0 : 1; // always 1
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uint16_t LSDA : 1;
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uint16_t PR : 1;
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uint16_t __reserved1 : 2;
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uint16_t SUS : 1;
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uint16_t __reserved2 : 4;
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} __packed;
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uint16_t raw;
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} PORTSC[2];
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} __packed;
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struct TD
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{
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union
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{
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struct
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{
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uint32_t T : 1;
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uint32_t Q : 1;
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uint32_t Vf : 1;
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uint32_t __reserved0 : 1;
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uint32_t LP : 28;
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} __packed;
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uint32_t raw;
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} LINK;
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union
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{
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struct
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{
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uint32_t ActLen : 11;
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uint32_t __reserved0 : 5;
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uint32_t STATUS : 8;
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uint32_t IOC : 1;
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uint32_t IOS : 1;
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uint32_t LS : 1;
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uint32_t unknown_0 : 2; /* missing in the spec @ 3.2.2 */
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uint32_t SPD : 1;
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uint32_t __reserved1 : 2;
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} __packed;
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uint32_t raw;
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} CS;
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union
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{
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struct
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{
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uint32_t PID : 8;
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uint32_t DeviceAddress : 6;
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uint32_t EndPt : 4;
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uint32_t D : 1;
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uint32_t __reserved0 : 1;
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uint32_t MaxLen : 11;
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} __packed;
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uint32_t raw;
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} TOKEN;
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union
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{
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struct
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{
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uint32_t Addr : 32;
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} __packed;
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uint32_t raw;
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} BUFFER;
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/* The last 4 DWords of the
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Transfer Descriptor are
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reserved for use by software.
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- UHCI Design Guide 1.1 @ 3.2.5
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*/
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uint32_t __padding[4];
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} *td __aligned(16) __packed;
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struct QH
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{
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union
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{
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struct
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{
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uint32_t T : 1;
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uint32_t Q : 1;
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uint32_t __reserved0 : 2; /* must be 0 */
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uint32_t QHLP : 28;
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} __packed;
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uint32_t raw;
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} HEAD;
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union
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{
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struct
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{
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uint32_t T : 1;
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uint32_t Q : 1;
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uint32_t __reserved0 : 1;
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uint32_t __reserved1 : 1; /* must be 0 */
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uint32_t QELP : 28;
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} __packed;
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uint32_t raw;
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} ELEMENT;
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/* FIXME: It is the same with TD? */
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} *qh __aligned(16) __packed;
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PCI::PCIDeviceHeader *Header = nullptr;
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IORegisters *io = nullptr;
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uint32_t *FrameList = nullptr;
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void OnInterruptReceived(CPU::TrapFrame *Frame);
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bool Initialize();
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CrashUHCIKeyboardDriver(PCI::PCIDevice dev);
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~CrashUHCIKeyboardDriver() = default;
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};
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