/*	$NetBSD: ipaq_lcdreg.h,v 1.3 2022/07/21 10:09:20 andvar Exp $ */

/*-
 * Copyright (c) 2001 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Ichiro FUKUHARA(ichiro@ichiro.org).
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/* size of I/O space */
#define SALCD_NPORTS      11

/* LCD framebuffer offset */
#define SALCD_12_16_OFFSET	0x20	/* 12BIT - 16BIT */
#define SALCD_8BIT_OFFSET	0x200	/*  8BIT */

/* LCD Control Register 0 */
#define SALCD_CR0	0
#define CR0_LEN		(1<<0)	/* LCD enable */
#define CR0_CMS		(1<<1)	/* color op enable */
#define CR0_SDS		(1<<2)	/* Single display or Double display */
#define CR0_LDM		(1<<3)	/* LDD status bit ignore (don't interrupt) */
#define CR0_BAM		(1<<4)	/* Base address update does not 
						generate an interrupt */
#define CR0_ERM		(1<<5)	/* Bus error generate an interrupt */
#define CR0_PAS		(1<<7)	/* Passive / Active and TFT-LCD enable */
#define CR0_BLE		(1<<8)	/* endian select 0=little */
#define CR0_DPD		(1<<9)

/* LCD Control Register 1 */
#define SALCD_CR1	0x20
#define CR1_PPL(pixel)	((pixel) - 16)		/* PPL ; Pixel per line
								 - 16 */
#define CR1_HSW(pixel)	(((pixel) - 1) << 10)	/* HSW ; */
#define CR1_ELW(pixel)	(((pixel) - 1) << 16)	/* ELW ; */
#define CR1_BLW(pixel)	(((pixel) - 1) << 24)	/* BLW ; */

/* LCD Control Register 2 */
#define SALCD_CR2	0x24
#define CR2_LPP(line)	((line) - 1)		/* LPP ; Lines per panel */
#define CR2_VSW(line)	(((line) -1) << 10)	/* VSW ; */
#define CR2_EFW(line)	((line) << 16)		/* EFW ; */
#define CR2_BFW(line)	((line) << 24)		/* BFW ; */

/* LCD Control Register 3 */
#define SALCD_CR3	0x28
#define CR3_PCD(div)	(((div) - 4)/2)	/* PCD ; Pixel clock divisor */
#define CR3_ACB(div)	(((div) - 2)/2)	/* ACB ; */
#define CR3_API(div)	((div) << 16)	/* API ; AC Bias */
#define CR3_VSPL	(0 << 20)	/* VSP ; Vsync = Low */
#define CR3_VSPH	(1 << 20)	/* VSP ; Vsync = High */
#define CR3_HSPL	(0 << 21)	/* HSP ; Hsync = Low */
#define CR3_HSPH	(1 << 21)	/* HSP ; Hsync = High */
#define CR3_PCP_RE	(0 << 22)	/* PCP ; Pixel clock Rising-Edge */
#define CR3_PCP_FE	(1 << 22)	/* PCP ; Pixel clock Falling-Edge */
#define CR3_OEPH	(0 << 23)	/* OEP ; Output Enable active High */
#define CR3_OEPL	(0 << 23)	/* OEP ; Output Enable active Low */


/* DMA Channel 1 Base Address Register */
#define SALCD_BA1	0x10

/* DMA Channel 1 Current Address Register */
#define SALCD_CA1	0x14

/* DMA Channel 1 Base Address Register */
#define SALCD_BA2	0x18

/* DMA Channel 1 Current Address Register */
#define SALCD_CA2	0x1C

/* LCD Status Register */
#define SALCD_SR	0x04
#define SR_LDD		(1<<0)
#define SR_BAU		(1<<1)
#define SR_BER		(1<<2)
#define SR_ABC		(1<<3)
#define SR_IOL		(1<<4)
#define SR_IUL		(1<<5)
#define SR_IOU		(1<<6)
#define SR_IUU		(1<<7)
#define SR_OOL		(1<<8)
#define SR_OUL		(1<<9)
#define SR_OOU		(1<<10)
#define SR_OUU		(1<<11)

/* Products Specification */
#define IPAQ_LCCR0	CR0_LEN | CR0_PAS
#define IPAQ_LCCR1	CR1_PPL(320) | CR1_HSW(3) | \
			CR1_ELW(17) | CR1_BLW(12)
#define IPAQ_LCCR2	CR2_LPP(240) | CR2_VSW(3) | \
			CR2_EFW(1) | CR2_BFW(10)
#define IPAQ_LCCR3	CR3_PCD(36) | CR3_ACB(2) | \
			CR3_VSPL | CR3_HSPL | CR3_API(0)

/* end of ipaq_lcdreg.h */