176 lines
6.1 KiB
C
176 lines
6.1 KiB
C
/* $NetBSD: cd1190reg.h,v 1.5 2008/07/02 10:16:20 plunky Exp $ */
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/*-
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* Copyright (c) 1998 Iain Hibbert.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Definitions for Cirrus Logic CD1190 parallel chips.
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*/
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/* ACK Width Register */
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#define CD1190_AWR 0x03
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/* Controller Command Register */
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#define CD1190_CCR 0x0b
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#define CD1190_CCR_CGC (1<<7) /* Change Global Config Command */
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#define CD1190_CCR_CGC_RESET (1<<0) /* CGC Reset Command */
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#define CD1190_CCR_PAR (1<<6) /* Parallel Command */
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#define CD1190_CCR_PAR_DISABLE (1<<2) /* PAR Parallel Disable */
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#define CD1190_CCR_PAR_FLUSH (1<<1) /* PAR Flush FIFO */
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#define CD1190_CCR_PAR_ENABLE (1<<0) /* PAR Parallel Enable */
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#define CD1190_CCR_SIG (1<<5) /* Signal Command */
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#define CD1190_CCR_SIG_SET_BUSY (1<<2) /* SIG Set Busy Output */
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#define CD1190_CCR_SIG_ACK (1<<1) /* SIG Pulse ACK Output */
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#define CD1190_CCR_SIG_CLR_BUSY (1<<0) /* SIG Clear Busy Output */
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#define CD1190_CCR_TIM (1<<4) /* Timer Command */
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#define CD1190_CCR_TIM_ENABLE (1<<3) /* Timer Enabled */
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/* Data Time-0ut Register */
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#define CD1190_DTR 0x09
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/* End Of Service Request Register */
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#define CD1190_ESR 0x10
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/* FIFO Count Register */
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#define CD1190_FCR 0x0e
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/* FIFO Data Register */
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#define CD1190_FDR 0x12
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/* Firmware Revision Register */
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#define CD1190_FRR 0x0f
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/* FIFO Threshold Register */
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#define CD1190_FTR 0x08
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/* Global Config Register */
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#define CD1190_GCR 0x0a
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#define CD1190_GCR_NOACK (1<<2) /* NO-ACK handshaking */
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#define CD1190_GCR_MODE (1<<1) /* Peripheral/Controller Mode */
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#define CD1190_GCR_DIR (1<<0) /* Input/Output Direction */
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/* defines for variable CD1190_IO */
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#define CD1190_CO 0x00
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#define CD1190_CI 0x01
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#define CD1190_PO 0x02
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#define CD1190_PI 0x03
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/* Interrupt Config Register */
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#define CD1190_ICR 0x01
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#define CD1190_ICR_ENABLE (1<<7) /* Enable Interrupts */
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#define CD1190_ICR_ACK (1<<3) /* Enable: Unsolicited ACK */
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#define CD1190_ICR_FIFO (1<<2) /* Enable: FIFO Thresh/Time */
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#define CD1190_ICR_SIGNAL (1<<1) /* Enable: Signal Status */
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#define CD1190_ICR_TIMER (1<<0) /* Enable: Timer Expired */
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/* Interrupt Status Register */
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#define CD1190_ISR 0x0c
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#define CD1190_ISR_INTERRUPT (1<<7) /* Interrupt Has Occurred */
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#define CD1190_ISR_ACK (1<<3) /* Unsolicited ACK */
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#define CD1190_ISR_FIFO (1<<2) /* FIFO Thresh/Time */
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#define CD1190_ISR_SIGNAL (1<<1) /* Signal Status */
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#define CD1190_ISR_TIMER (1<<0) /* Timer Expired */
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/* Interrupt Vector Register */
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#define CD1190_IVR 0x00
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/* Parallel Status Register */
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#define CD1190_PSR 0x1c
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#define CD1190_PSR_ENP (1<<7) /* Parallel Enabled */
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#define CD1190_PSR_BUSY (1<<6) /* Parallel Busy */
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#define CD1190_PSR_ACK (1<<5) /* Parallel Acknowledge */
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#define CD1190_PSR_STATUS (CD1190_PSR_ENP | CD1190_PSR_BUSY)
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#define CD1190_PSR_NORMAL CD1190_PSR_ENP
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/* Signal Control Register */
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#define CD1190_SCR 0x1e
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#define CD1190_SCR_WRRD (1<<7) /* Read Only: Write/Read */
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#define CD1190_SCR_IP3 (1<<6) /* Read Only: Input Line 3 */
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#define CD1190_SCR_IP2 (1<<5) /* Read Only: Input Line 2 */
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#define CD1190_SCR_IP1 (1<<4) /* Read Only: Input Line 1 */
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#define CD1190_SCR_WR_WRRD (1<<3) /* Write/Read */
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#define CD1190_SCR_OP3 (1<<2) /* Output Line 3 */
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#define CD1190_SCR_OP2 (1<<1) /* Output Line 2 */
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#define CD1190_SCR_OP1 (1<<0) /* Output Line 1 */
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/* Input signals
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*
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* IP3 - *ERROR
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* IP2 - PAPER EMPTY / FAULT
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* IP1 - SELECT
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* WRRD - AFD
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* OP3 - SLIN
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* OP2 - *INIT / *RESET
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* OP1 - N/A
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*/
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#define CD1190_SCR_NOERROR CD1190_SCR_IP3 /* Printer Error (active low) */
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#define CD1190_SCR_PE CD1190_SCR_IP2 /* Paper Empty */
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#define CD1190_SCR_SELECT CD1190_SCR_IP1 /* Printer Select */
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#define CD1190_SCR_STATUS (CD1190_SCR_IP3 | CD1190_SCR_IP2 | CD1190_SCR_IP1)
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/* Outout signals - Active High?
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*
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* IP3 - SLIN
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* IP2 - *INIT / *RESET
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* IP1 - N/A
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* WRRD - AFD
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* OP3 - *ERROR
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* OP2 - SELECT
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* OP1 - PAPER EMPTY / FAULT
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*/
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#define CD1190_SCR_RESET CD1190_SCR_OP2
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#define CD1190_SCR_SEL_IN CD1190_SCR_OP3
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/* Specification Register ZEROes */
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#define CD1190_SR0 0x06
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#define CD1190_SR0_WRRD (1<<7) /* WR/RD 1 to 0 Change */
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#define CD1190_SR0_IP3 (1<<6) /* IP3 1 to 0 Change */
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#define CD1190_SR0_IP2 (1<<5) /* IP2 1 to 0 Change */
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#define CD1190_SR0_IP1 (1<<4) /* IP1 1 to 0 Change */
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/* Specification Register ONEs */
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#define CD1190_SR1 0x07
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#define CD1190_SR1_WRRD (1<<7) /* WR/RD 0 to 1 Change */
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#define CD1190_SR1_IP3 (1<<6) /* IP3 0 to 1 Change */
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#define CD1190_SR1_IP2 (1<<5) /* IP2 0 to 1 Change */
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#define CD1190_SR1_IP1 (1<<4) /* IP1 0 to 1 Change */
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/* Signal Status Register */
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#define CD1190_SSR 0x0d
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#define CD1190_SSR_WRRD (1<<7) /* WR/RD Change */
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#define CD1190_SSR_IP3 (1<<6) /* IP3 Change */
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#define CD1190_SSR_IP2 (1<<5) /* IP2 Change */
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#define CD1190_SSR_IP1 (1<<4) /* IP1 Change */
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/* Strobe Width Register */
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#define CD1190_SWR 0x02
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/* Timer Multipler Register */
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#define CD1190_TMR 0x05
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/* Timer Prescale Register */
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#define CD1190_TPR 0x04
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