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+/*
+ * 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>
+ *
+ * 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.
+ *
+ * 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
+};
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