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Diffstat (limited to 'drivers/video/fbdev/valkyriefb.h')
| -rw-r--r-- | drivers/video/fbdev/valkyriefb.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/drivers/video/fbdev/valkyriefb.h b/drivers/video/fbdev/valkyriefb.h new file mode 100644 index 000000000..d787441e5 --- /dev/null +++ b/drivers/video/fbdev/valkyriefb.h @@ -0,0 +1,200 @@ +/* + * 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 +}; |