/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* valkyriefb.h: Constants of all sorts for valkyriefb
*
* Created 8 August 1998 by
* Martin Costabel <costabel@wanadoo.fr> and Kevin Schoedel
*
* Vmode-switching changes and vmode 15/17 modifications created 29 August
* 1998 by Barry K. Nathan <barryn@pobox.com>.
*
* vmode 10 changed by Steven Borley <sjb@salix.demon.co.uk>, 14 mai 2000
*
* Ported to 68k Macintosh by David Huggins-Daines <dhd@debian.org>
*
* Based directly on:
*
* controlfb.h: Constants of all sorts for controlfb
* Copyright (C) 1998 Daniel Jacobowitz <dan@debian.org>
*
* pmc-valkyrie.h: Console support for PowerMac "control" display adaptor.
* Copyright (C) 1997 Paul Mackerras.
*
* pmc-valkyrie.c: Console support for PowerMac "control" display adaptor.
* Copyright (C) 1997 Paul Mackerras.
*
* and indirectly from:
*
* pmc-control.h: Console support for PowerMac "control" display adaptor.
* Copyright (C) 1997 Paul Mackerras.
*
* pmc-control.c: Console support for PowerMac "control" display adaptor.
* Copyright (C) 1996 Paul Mackerras.
*
* platinumfb.c: Console support for PowerMac "platinum" display adaptor.
* Copyright (C) 1998 Jon Howell
*/
#ifdef CONFIG_MAC
/* Valkyrie registers are word-aligned on m68k */
#define VALKYRIE_REG_PADSIZE 3
#else
#define VALKYRIE_REG_PADSIZE 7
#endif
/*
* Structure of the registers for the Valkyrie colormap registers.
*/
struct cmap_regs {
unsigned char addr;
char pad1[VALKYRIE_REG_PADSIZE];
unsigned char lut;
};
/*
* Structure of the registers for the "valkyrie" display adaptor.
*/
struct vpreg { /* padded register */
unsigned char r;
char pad[VALKYRIE_REG_PADSIZE];
};
struct valkyrie_regs {
struct vpreg mode;
struct vpreg depth;
struct vpreg status;
struct vpreg reg3;
struct vpreg intr;
struct vpreg reg5;
struct vpreg intr_enb;
struct vpreg msense;
};
/*
* Register initialization tables for the valkyrie display.
*
* Dot clock rate is
* 3.9064MHz * 2**clock_params[2] * clock_params[1] / clock_params[0].
*/
struct valkyrie_regvals {
unsigned char mode;
unsigned char clock_params[3];
int pitch[2]; /* bytes/line, indexed by color_mode */
int hres;
int vres;
};
#ifndef CONFIG_MAC
/* Register values for 1024x768, 75Hz mode (17) */
/* I'm not sure which mode this is (16 or 17), so I'm defining it as 17,
* since the equivalent mode in controlfb (which I adapted this from) is
* also 17. Just because MacOS can't do this on Valkyrie doesn't mean we
* can't! :)
*
* I was going to use 12, 31, 3, which I found by myself, but instead I'm
* using 11, 28, 3 like controlfb, for consistency's sake.
*/
static struct valkyrie_regvals valkyrie_reg_init_17 = {
15,
{ 11, 28, 3 }, /* pixel clock = 79.55MHz for V=74.50Hz */
{ 1024, 0 },
1024, 768
};
/* Register values for 1024x768, 72Hz mode (15) */
/* This used to be 12, 30, 3 for pixel clock = 78.12MHz for V=72.12Hz, but
* that didn't match MacOS in the same video mode on this chip, and it also
* caused the 15" Apple Studio Display to not work in this mode. While this
* mode still doesn't match MacOS exactly (as far as I can tell), it's a lot
* closer now, and it works with the Apple Studio Display.
*
* Yes, even though MacOS calls it "72Hz", in reality it's about 70Hz.
*/
static struct valkyrie_regvals valkyrie_reg_init_15 = {
15,
{ 12, 29, 3 }, /* pixel clock = 75.52MHz for V=69.71Hz? */
/* I interpolated the V=69.71 from the vmode 14 and old 15
* numbers. Is this result correct?
*/
{ 1024, 0 },
1024, 768
};
/* Register values for 1024x768, 60Hz mode (14) */
static struct valkyrie_regvals valkyrie_reg_init_14 = {
14,
{ 15, 31, 3 }, /* pixel clock = 64.58MHz for V=59.62Hz */
{ 1024, 0 },
1024, 768
};
#endif /* !defined CONFIG_MAC */
/* Register values for 832x624, 75Hz mode (13) */
static struct valkyrie_regvals valkyrie_reg_init_13 = {
9,
{ 23, 42, 3 }, /* pixel clock = 57.07MHz for V=74.27Hz */
{ 832, 0 },
832, 624
};
/* Register values for 800x600, 72Hz mode (11) */
static struct valkyrie_regvals valkyrie_reg_init_11 = {
13,
{ 17, 27, 3 }, /* pixel clock = 49.63MHz for V=71.66Hz */
{ 800, 0 },
800, 600
};
/* Register values for 800x600, 60Hz mode (10) */
static struct valkyrie_regvals valkyrie_reg_init_10 = {
12,
{ 25, 32, 3 }, /* pixel clock = 40.0015MHz,
used to be 20,53,2, pixel clock 41.41MHz for V=59.78Hz */
{ 800, 1600 },
800, 600
};
/* Register values for 640x480, 67Hz mode (6) */
static struct valkyrie_regvals valkyrie_reg_init_6 = {
6,
{ 14, 27, 2 }, /* pixel clock = 30.13MHz for V=66.43Hz */
{ 640, 1280 },
640, 480
};
/* Register values for 640x480, 60Hz mode (5) */
static struct valkyrie_regvals valkyrie_reg_init_5 = {
11,
{ 23, 37, 2 }, /* pixel clock = 25.14MHz for V=59.85Hz */
{ 640, 1280 },
640, 480
};
static struct valkyrie_regvals *valkyrie_reg_init[VMODE_MAX] = {
NULL,
NULL,
NULL,
NULL,
&valkyrie_reg_init_5,
&valkyrie_reg_init_6,
NULL,
NULL,
NULL,
&valkyrie_reg_init_10,
&valkyrie_reg_init_11,
NULL,
&valkyrie_reg_init_13,
#ifndef CONFIG_MAC
&valkyrie_reg_init_14,
&valkyrie_reg_init_15,
NULL,
&valkyrie_reg_init_17,
#endif
};
