preliminary SFB support. Does not work as machine's console (for two
reasons: it won't attach as console, and there's currently no way to do keyboard input on TC machines), and has no real RAMDAC (colormap, cursor, etc.) support.
This commit is contained in:
cgd
parent
a449bdaea1
commit
b65a5bbdfc
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@ -0,0 +1,96 @@
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/* $NetBSD: sfbreg.h,v 1.1 1996/05/01 21:15:46 cgd Exp $ */
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/*
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* Copyright (c) 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
|
||||
* notice and this permission notice appear in all copies of the
|
||||
* software, derivative works or modified versions, and any portions
|
||||
* thereof, and that both notices appear in supporting documentation.
|
||||
*
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||||
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
||||
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* Smart ("CXTurbo") Frame Buffer definitions, from:
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* ``DEC 3000 300/400/500/600/700/800/900 AXP Models System Prgrammer's Manual''
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* (DEC order number EK-D3SYS-PM), section 6.
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*
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* All definitions are in "dense" TurboChannel space.
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*/
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/*
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* Size of the SFB address space.
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*/
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#define SFB_SIZE 0x1000000
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/*
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* Offsets into slot space of each functional unit.
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*/
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#define SFB_ASIC_OFFSET 0x0100000 /* SFB ASIC Control Registers */
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#define SFB_ASIC_SIZE 0x0020000
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#define SFB_RAMDAC_OFFSET 0x01c0000 /* Bt495 RAMDAC Registers */
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#define SFB_RAMDAC_SIZE 0x0040000
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#define SFB_FB_OFFSET 0x0200000 /* Frame buffer */
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#define SFB_FB_SIZE 0x0200000
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#define SFB_OSBM_OFFSET 0x0600000 /* Off-screen buffer memory */
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#define SFB_OSBM_SIZE 0x0200000
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/*
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* SFB ASIC registers (offsets from SFB_ASIC_OFFSET).
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*/
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#define SFB_ASIC_COPYBUF_0 0x0000 /* Copy buffer register 0 (R/W) */
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#define SFB_ASIC_COPYBUF_1 0x0004 /* Copy buffer register 1 (R/W) */
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#define SFB_ASIC_COPYBUF_2 0x0008 /* Copy buffer register 2 (R/W) */
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#define SFB_ASIC_COPYBUF_3 0x000c /* Copy buffer register 3 (R/W) */
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#define SFB_ASIC_COPYBUF_4 0x0010 /* Copy buffer register 4 (R/W) */
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#define SFB_ASIC_COPYBUF_5 0x0014 /* Copy buffer register 5 (R/W) */
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#define SFB_ASIC_COPYBUF_6 0x0018 /* Copy buffer register 6 (R/W) */
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#define SFB_ASIC_COPYBUF_7 0x001c /* Copy buffer register 7 (R/W) */
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#define SFB_ASIC_FG 0x0020 /* Foreground (R/W) */
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#define SFB_ASIC_BG 0x0024 /* Background (R/W) */
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#define SFB_ASIC_PLANEMASK 0x0028 /* PlaneMask (R/W) */
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#define SFB_ASIC_PIXELMASK 0x002c /* PixelMask (R/W) */
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#define SFB_ASIC_MODE 0x0030 /* Mode (R/W) */
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#define SFB_ASIC_ROP 0x0034 /* RasterOp (R/W) */
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#define SFB_ASIC_PIXELSHIFT 0x0038 /* PixelShift (R/W) */
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#define SFB_ASIC_ADDRESS 0x003c /* Address (R/W) */
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#define SFB_ASIC_BRES1 0x0040 /* Bresenham register 1 (R/W) */
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#define SFB_ASIC_BRES2 0x0044 /* Bresenham register 2 (R/W) */
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#define SFB_ASIC_BRES3 0x0048 /* Bresenham register 3 (R) (?) */
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#define SFB_ASIC_BCONT 0x004c /* Bcont (W) */
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#define SFB_ASIC_DEEP 0x0050 /* Deep (R/W) */
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#define SFB_ASIC_START 0x0054 /* Start (W) */
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#define SFB_ASIC_CLEAR_INTR 0x0058 /* Clear Interrupt (W) */
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#define SFB_ASIC_VIDEO_REFRESH 0x0060 /* Video refresh counter (R/W) */
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#define SFB_ASIC_VIDEO_HSETUP 0x0064 /* Video horizontal setup (R/W) */
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#define SFB_ASIC_VIDEO_VSETUP 0x0068 /* Video vertical setup (R/W) */
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#define SFB_ASIC_VIDEO_BASE 0x006c /* Video base address (R/W) */
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#define SFB_ASIC_VIDEO_VALID 0x0070 /* Video valid (W) */
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#define SFB_ASIC_ENABLE_INTR 0x0074 /* Enable/Disable Interrupts (W) */
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#define SFB_ASIC_TCCLK 0x0078 /* TCCLK count (R/W) */
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#define SFB_ASIC_VIDCLK 0x007c /* VIDCLK count (R/W) */
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/*
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* Bt459 RAMDAC registers (offsets from SFB_RAMDAC_OFFSET)
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*/
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#define SFB_RAMDAC_ADDRLOW 0x0000 /* Address register low byte */
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#define SFB_RAMDAC_ADDRHIGH 0x0004 /* Address register high byte */
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#define SFB_RAMDAC_REGDATA 0x0008 /* Register addressed by addr reg */
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#define SFB_RAMDAC_CMAPDATA 0x000c /* Colormap loc addressed by addr reg */
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@ -0,0 +1,411 @@
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/* $NetBSD: sfb.c,v 1.1 1996/05/01 21:15:50 cgd Exp $ */
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
|
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* its documentation is hereby granted, provided that both the copyright
|
||||
* notice and this permission notice appear in all copies of the
|
||||
* software, derivative works or modified versions, and any portions
|
||||
* thereof, and that both notices appear in supporting documentation.
|
||||
*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
||||
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
|
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* rights to redistribute these changes.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <sys/conf.h>
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#include <sys/ioctl.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/tc/tcvar.h>
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#include <machine/sfbreg.h>
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#include <alpha/tc/sfbvar.h>
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#if 0
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#include <alpha/tc/bt459reg.h>
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#endif
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#include <dev/rcons/raster.h>
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#include <alpha/wscons/wscons_raster.h>
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#include <alpha/wscons/wsconsvar.h>
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#include <machine/fbio.h>
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#include <machine/autoconf.h>
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#include <machine/pte.h>
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int sfbmatch __P((struct device *, void *, void *));
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void sfbattach __P((struct device *, struct device *, void *));
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int sfbprint __P((void *, char *));
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struct cfattach sfb_ca = {
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sizeof(struct sfb_softc), sfbmatch, sfbattach,
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};
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struct cfdriver sfb_cd = {
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NULL, "sfb", DV_DULL,
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};
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void sfb_getdevconfig __P((tc_addr_t dense_addr, struct sfb_devconfig *dc));
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struct sfb_devconfig sfb_console_dc;
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struct wscons_emulfuncs sfb_emulfuncs = {
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rcons_cursor, /* could use hardware cursor; punt */
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rcons_putstr,
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rcons_copycols,
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rcons_erasecols,
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rcons_copyrows,
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rcons_eraserows,
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};
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int sfbioctl __P((struct device *, u_long, caddr_t, int, struct proc *));
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int sfbmmap __P((struct device *, off_t, int));
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#if 0
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void sfb_blank __P((struct sfb_devconfig *));
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void sfb_unblank __P((struct sfb_devconfig *));
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#endif
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int
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sfbmatch(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct cfdata *cf = match;
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struct tc_attach_args *ta = aux;
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if (strncmp("PMAGB-BA", ta->ta_modname, TC_ROM_LLEN) != 0)
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return (0);
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return (10);
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}
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void
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sfb_getdevconfig(dense_addr, dc)
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tc_addr_t dense_addr;
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struct sfb_devconfig *dc;
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{
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struct raster *rap;
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struct rcons *rcp;
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char *regp, *ramdacregp;
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int i;
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dc->dc_vaddr = dense_addr;
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dc->dc_paddr = k0segtophys(dc->dc_vaddr); /* XXX */
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dc->dc_size = SFB_SIZE;
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regp = (char *)dc->dc_vaddr + SFB_ASIC_OFFSET;
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ramdacregp = (char *)dc->dc_vaddr + SFB_RAMDAC_OFFSET;
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dc->dc_wid =
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(*(volatile u_int32_t *)(regp + SFB_ASIC_VIDEO_HSETUP) & 0x1ff) * 4;
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dc->dc_ht =
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(*(volatile u_int32_t *)(regp + SFB_ASIC_VIDEO_VSETUP) & 0x7ff);
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switch (*(volatile u_int32_t *)(regp + SFB_ASIC_DEEP)) {
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case 0:
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case 1: /* XXX by the book; wrong? */
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dc->dc_depth = 8; /* 8 plane */
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break;
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case 2:
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dc->dc_depth = 16; /* 16 plane */
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break;
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case 4:
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dc->dc_depth = 32; /* 32 plane */
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break;
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default:
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dc->dc_depth = 8; /* XXX can't happen? */
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break;
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}
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dc->dc_rowbytes = dc->dc_wid * (dc->dc_depth / 8);
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dc->dc_videobase = dc->dc_vaddr + SFB_FB_OFFSET +
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((*(volatile u_int32_t *)(regp + SFB_ASIC_VIDEO_BASE)) *
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4096 * (dc->dc_depth / 8));
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(*(volatile u_int32_t *)(regp + SFB_ASIC_MODE)) = 0;
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tc_wmb();
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(*(volatile u_int32_t *)(regp + SFB_ASIC_VIDEO_VALID)) = 1;
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tc_wmb();
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/*
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* Set all bits in the pixel mask, to enable writes to all pixels.
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* It seems that the console firmware clears some of them
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* under some circumstances, which causes cute vertical stripes.
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*/
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(*(volatile u_int32_t *)(regp + SFB_ASIC_PIXELMASK)) = 0xffffffff;
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tc_wmb();
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(*(volatile u_int32_t *)(regp + SFB_ASIC_PLANEMASK)) = 0xffffffff;
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tc_wmb();
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/* Initialize the RAMDAC/colormap */
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/* start XXX XXX XXX */
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(*(volatile u_int32_t *)(ramdacregp + SFB_RAMDAC_ADDRLOW)) = 0;
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(*(volatile u_int32_t *)(ramdacregp + SFB_RAMDAC_ADDRHIGH)) = 0;
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tc_wmb();
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for (i = 0; i < 256; i++) {
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(*(volatile u_int32_t *)(ramdacregp + SFB_RAMDAC_CMAPDATA)) =
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i ? 0xff : 0;
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tc_wmb();
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(*(volatile u_int32_t *)(ramdacregp + SFB_RAMDAC_CMAPDATA)) =
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i ? 0xff : 0;
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tc_wmb();
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(*(volatile u_int32_t *)(ramdacregp + SFB_RAMDAC_CMAPDATA)) =
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i ? 0xff : 0;
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tc_wmb();
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}
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/* end XXX XXX XXX */
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/* clear the screen */
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for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t))
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*(u_int32_t *)(dc->dc_videobase + i) = 0x00000000;
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/* initialize the raster */
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rap = &dc->dc_raster;
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rap->width = dc->dc_wid;
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rap->height = dc->dc_ht;
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rap->depth = 8;
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rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t);
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rap->pixels = (u_int32_t *)dc->dc_videobase;
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/* initialize the raster console blitter */
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rcp = &dc->dc_rcons;
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rcp->rc_sp = rap;
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rcp->rc_crow = rcp->rc_ccol = -1;
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rcp->rc_crowp = &rcp->rc_crow;
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rcp->rc_ccolp = &rcp->rc_ccol;
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rcons_init(rcp, 34, 80);
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}
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void
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sfbattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
|
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{
|
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struct sfb_softc *sc = (struct sfb_softc *)self;
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struct tc_attach_args *ta = aux;
|
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struct wscons_attach_args waa;
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struct wscons_odev_spec *wo;
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int console;
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char *x;
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console = 0; /* XXX */
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if (console)
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sc->sc_dc = &sfb_console_dc;
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else {
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sc->sc_dc = (struct sfb_devconfig *)
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malloc(sizeof(struct sfb_devconfig), M_DEVBUF, M_WAITOK);
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sfb_getdevconfig(ta->ta_addr, sc->sc_dc);
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}
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if (sc->sc_dc->dc_vaddr == NULL) {
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printf(": couldn't map memory space; punt!\n");
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return;
|
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}
|
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printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht,
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sc->sc_dc->dc_depth);
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#if 0
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x = (char *)ta->ta_addr + SFB_ASIC_OFFSET;
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printf("%s: Video Base Address = 0x%x\n", self->dv_xname,
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*(u_int32_t *)(x + SFB_ASIC_VIDEO_BASE));
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printf("%s: Horizontal Setup = 0x%x\n", self->dv_xname,
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*(u_int32_t *)(x + SFB_ASIC_VIDEO_HSETUP));
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printf("%s: Vertical Setup = 0x%x\n", self->dv_xname,
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*(u_int32_t *)(x + SFB_ASIC_VIDEO_VSETUP));
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#endif
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waa.waa_isconsole = console;
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wo = &waa.waa_odev_spec;
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wo->wo_ef = &sfb_emulfuncs;
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wo->wo_efa = &sc->sc_dc->dc_rcons;
|
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wo->wo_nrows = sc->sc_dc->dc_rcons.rc_maxrow;
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wo->wo_ncols = sc->sc_dc->dc_rcons.rc_maxcol;
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wo->wo_crow = 0;
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wo->wo_ccol = 0;
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wo->wo_ioctl = sfbioctl;
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wo->wo_mmap = sfbmmap;
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|
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config_found(self, &waa, sfbprint);
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}
|
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|
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int
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sfbprint(aux, pnp)
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void *aux;
|
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char *pnp;
|
||||
{
|
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|
||||
if (pnp)
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printf("wscons at %s", pnp);
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return (UNCONF);
|
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}
|
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|
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int
|
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sfbioctl(dev, cmd, data, flag, p)
|
||||
struct device *dev;
|
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u_long cmd;
|
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caddr_t data;
|
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int flag;
|
||||
struct proc *p;
|
||||
{
|
||||
struct sfb_softc *sc = (struct sfb_softc *)dev;
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struct sfb_devconfig *dc = sc->sc_dc;
|
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|
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switch (cmd) {
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case FBIOGTYPE:
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#define fbt ((struct fbtype *)data)
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fbt->fb_type = FBTYPE_SFB;
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fbt->fb_height = sc->sc_dc->dc_ht;
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fbt->fb_width = sc->sc_dc->dc_wid;
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fbt->fb_depth = sc->sc_dc->dc_depth;
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fbt->fb_cmsize = 256; /* XXX ??? */
|
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fbt->fb_size = sc->sc_dc->dc_size;
|
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#undef fbt
|
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return (0);
|
||||
|
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#if 0
|
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case FBIOPUTCMAP:
|
||||
return (*tgar->tgar_set_cmap)(dc, (struct fbcmap *)data);
|
||||
|
||||
case FBIOGETCMAP:
|
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return (*tgar->tgar_get_cmap)(dc, (struct fbcmap *)data);
|
||||
#endif
|
||||
|
||||
case FBIOGATTR:
|
||||
return (ENOTTY); /* XXX ? */
|
||||
|
||||
#if 0
|
||||
case FBIOSVIDEO:
|
||||
if (*(int *)data == FBVIDEO_OFF)
|
||||
sfb_blank(sc->sc_dc);
|
||||
else
|
||||
sfb_unblank(sc->sc_dc);
|
||||
return (0);
|
||||
#endif
|
||||
|
||||
case FBIOGVIDEO:
|
||||
*(int *)data = dc->dc_blanked ? FBVIDEO_OFF : FBVIDEO_ON;
|
||||
return (0);
|
||||
|
||||
#if 0
|
||||
case FBIOSCURSOR:
|
||||
return (*tgar->tgar_set_cursor)(dc, (struct fbcursor *)data);
|
||||
|
||||
case FBIOGCURSOR:
|
||||
return (*tgar->tgar_get_cursor)(dc, (struct fbcursor *)data);
|
||||
|
||||
case FBIOSCURPOS:
|
||||
return (*tgar->tgar_set_curpos)(dc, (struct fbcurpos *)data);
|
||||
|
||||
case FBIOGCURPOS:
|
||||
return (*tgar->tgar_get_curpos)(dc, (struct fbcurpos *)data);
|
||||
|
||||
case FBIOGCURMAX:
|
||||
return (*tgar->tgar_get_curmax)(dc, (struct fbcurpos *)data);
|
||||
#endif
|
||||
}
|
||||
return (-1);
|
||||
}
|
||||
|
||||
int
|
||||
sfbmmap(dev, offset, prot)
|
||||
struct device *dev;
|
||||
off_t offset;
|
||||
int prot;
|
||||
{
|
||||
struct sfb_softc *sc = (struct sfb_softc *)dev;
|
||||
|
||||
if (offset > SFB_SIZE)
|
||||
return -1;
|
||||
return alpha_btop(sc->sc_dc->dc_paddr + offset);
|
||||
}
|
||||
|
||||
#if 0
|
||||
void
|
||||
tga_console(bc, pc, bus, device, function)
|
||||
bus_chipset_tag_t bc;
|
||||
pci_chipset_tag_t pc;
|
||||
int bus, device, function;
|
||||
{
|
||||
struct tga_devconfig *dcp = &tga_console_dc;
|
||||
struct wscons_odev_spec wo;
|
||||
|
||||
tga_getdevconfig(bc, pc, pci_make_tag(pc, bus, device, function), dcp);
|
||||
|
||||
/* sanity checks */
|
||||
if (dcp->dc_vaddr == NULL)
|
||||
panic("tga_console(%d, %d): couldn't map memory space",
|
||||
device, function);
|
||||
if (dcp->dc_tgaconf == NULL)
|
||||
panic("tga_console(%d, %d): unknown board configuration",
|
||||
device, function);
|
||||
|
||||
/*
|
||||
* Initialize the RAMDAC but DO NOT allocate any private storage.
|
||||
* Initialization includes disabling cursor, setting a sane
|
||||
* colormap, etc. It will be reinitialized in tgaattach().
|
||||
*/
|
||||
(*dcp->dc_tgaconf->tgac_ramdac->tgar_init)(dcp, 0);
|
||||
|
||||
wo.wo_ef = &tga_emulfuncs;
|
||||
wo.wo_efa = &dcp->dc_rcons;
|
||||
wo.wo_nrows = dcp->dc_rcons.rc_maxrow;
|
||||
wo.wo_ncols = dcp->dc_rcons.rc_maxcol;
|
||||
wo.wo_crow = 0;
|
||||
wo.wo_ccol = 0;
|
||||
/* ioctl and mmap are unused until real attachment. */
|
||||
|
||||
wscons_attach_console(&wo);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
/*
|
||||
* Functions to blank and unblank the display.
|
||||
*/
|
||||
void
|
||||
sfb_blank(dc)
|
||||
struct sfb_devconfig *dc;
|
||||
{
|
||||
char *regp = (char *)dc->dc_vaddr + SFB_ASIC_OFFSET;
|
||||
|
||||
if (!dc->dc_blanked) {
|
||||
dc->dc_blanked = 1;
|
||||
*(volatile u_int32_t *)(regp + SFB_ASIC_VIDEO_VALID) = 0;
|
||||
tc_wmb();
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
sfb_unblank(dc)
|
||||
struct sfb_devconfig *dc;
|
||||
{
|
||||
char *regp = (char *)dc->dc_vaddr + SFB_ASIC_OFFSET;
|
||||
|
||||
if (dc->dc_blanked) {
|
||||
dc->dc_blanked = 0;
|
||||
*(volatile u_int32_t *)(regp + SFB_ASIC_VIDEO_VALID) = 1;
|
||||
tc_wmb();
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
|
@ -0,0 +1,62 @@
|
|||
/* $NetBSD: sfbvar.h,v 1.1 1996/05/01 21:15:51 cgd Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Author: Chris G. Demetriou
|
||||
*
|
||||
* Permission to use, copy, modify and distribute this software and
|
||||
* its documentation is hereby granted, provided that both the copyright
|
||||
* notice and this permission notice appear in all copies of the
|
||||
* software, derivative works or modified versions, and any portions
|
||||
* thereof, and that both notices appear in supporting documentation.
|
||||
*
|
||||
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
||||
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
||||
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
||||
*
|
||||
* Carnegie Mellon requests users of this software to return to
|
||||
*
|
||||
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
||||
* School of Computer Science
|
||||
* Carnegie Mellon University
|
||||
* Pittsburgh PA 15213-3890
|
||||
*
|
||||
* any improvements or extensions that they make and grant Carnegie the
|
||||
* rights to redistribute these changes.
|
||||
*/
|
||||
|
||||
#include <machine/sfbreg.h>
|
||||
#include <dev/rcons/raster.h>
|
||||
#include <alpha/wscons/wsconsvar.h>
|
||||
#include <alpha/wscons/wscons_raster.h>
|
||||
|
||||
struct sfb_devconfig;
|
||||
struct fbcmap;
|
||||
struct fbcursor;
|
||||
struct fbcurpos;
|
||||
|
||||
struct sfb_devconfig {
|
||||
vm_offset_t dc_vaddr; /* memory space virtual base address */
|
||||
vm_offset_t dc_paddr; /* memory space physical base address */
|
||||
vm_offset_t dc_size; /* size of slot memory */
|
||||
|
||||
int dc_wid; /* width of frame buffer */
|
||||
int dc_ht; /* height of frame buffer */
|
||||
int dc_depth; /* depth, bits per pixel */
|
||||
int dc_rowbytes; /* bytes in a FB scan line */
|
||||
|
||||
vm_offset_t dc_videobase; /* base of flat frame buffer */
|
||||
|
||||
struct raster dc_raster; /* raster description */
|
||||
struct rcons dc_rcons; /* raster blitter control info */
|
||||
|
||||
int dc_blanked; /* currently has video disabled */
|
||||
};
|
||||
|
||||
struct sfb_softc {
|
||||
struct device sc_dev;
|
||||
|
||||
struct sfb_devconfig *sc_dc; /* device configuration */
|
||||
};
|
||||
Loading…
Reference in New Issue