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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* linux/include/asm-arm/hardware/amba_kmi.h
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*
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* Internal header file for AMBA KMI ports
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*
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* Copyright (C) 2000 Deep Blue Solutions Ltd.
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*
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* ---------------------------------------------------------------------------
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* From ARM PrimeCell(tm) PS2 Keyboard/Mouse Interface (PL050) Technical
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* Reference Manual - ARM DDI 0143B - see http://www.arm.com/
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* ---------------------------------------------------------------------------
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*/
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#ifndef ASM_ARM_HARDWARE_AMBA_KMI_H
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#define ASM_ARM_HARDWARE_AMBA_KMI_H
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/*
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* KMI control register:
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* KMICR_TYPE 0 = PS2/AT mode, 1 = No line control bit mode
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* KMICR_RXINTREN 1 = enable RX interrupts
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* KMICR_TXINTREN 1 = enable TX interrupts
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* KMICR_EN 1 = enable KMI
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* KMICR_FD 1 = force KMI data low
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* KMICR_FC 1 = force KMI clock low
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*/
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#define KMICR (KMI_BASE + 0x00)
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#define KMICR_TYPE (1 << 5)
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#define KMICR_RXINTREN (1 << 4)
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#define KMICR_TXINTREN (1 << 3)
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#define KMICR_EN (1 << 2)
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#define KMICR_FD (1 << 1)
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#define KMICR_FC (1 << 0)
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/*
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* KMI status register:
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* KMISTAT_TXEMPTY 1 = transmitter register empty
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* KMISTAT_TXBUSY 1 = currently sending data
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* KMISTAT_RXFULL 1 = receiver register ready to be read
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* KMISTAT_RXBUSY 1 = currently receiving data
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* KMISTAT_RXPARITY parity of last databyte received
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* KMISTAT_IC current level of KMI clock input
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* KMISTAT_ID current level of KMI data input
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*/
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#define KMISTAT (KMI_BASE + 0x04)
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#define KMISTAT_TXEMPTY (1 << 6)
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#define KMISTAT_TXBUSY (1 << 5)
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#define KMISTAT_RXFULL (1 << 4)
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#define KMISTAT_RXBUSY (1 << 3)
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#define KMISTAT_RXPARITY (1 << 2)
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#define KMISTAT_IC (1 << 1)
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#define KMISTAT_ID (1 << 0)
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/*
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* KMI data register
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*/
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#define KMIDATA (KMI_BASE + 0x08)
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/*
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* KMI clock divisor: to generate 8MHz internal clock
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* div = (ref / 8MHz) - 1; 0 <= div <= 15
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*/
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#define KMICLKDIV (KMI_BASE + 0x0c)
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/*
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* KMI interrupt register:
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* KMIIR_TXINTR 1 = transmit interrupt asserted
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* KMIIR_RXINTR 1 = receive interrupt asserted
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*/
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#define KMIIR (KMI_BASE + 0x10)
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#define KMIIR_TXINTR (1 << 1)
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#define KMIIR_RXINTR (1 << 0)
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/*
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* The size of the KMI primecell
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*/
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#define KMI_SIZE (0x100)
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#endif
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