528 lines
16 KiB
C
528 lines
16 KiB
C
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/* $NetBSD: p9100.c,v 1.1 1999/08/01 00:23:49 matt Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matt Thomas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)p9100.c 8.2 (Berkeley) 10/30/93
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*/
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/*
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* color display (p9100) driver.
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*
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* Does not handle interrupts, even though they can occur.
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*
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* XXX should defer colormap updates to vertical retrace interrupts
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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/buf.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/tty.h>
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#include <sys/conf.h>
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#include <vm/vm.h>
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#include <machine/bus.h>
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#include <machine/autoconf.h>
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#include <machine/fbio.h>
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#include <machine/pmap.h>
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#include <machine/fbvar.h>
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#include <machine/cpu.h>
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#include <machine/conf.h>
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#include <sparc/dev/btreg.h>
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#include <sparc/dev/btvar.h>
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#if 0
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#include <sparc/dev/p9100reg.h>
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#endif
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#include <sparc/dev/sbusvar.h>
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/* per-display variables */
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struct p9100_softc {
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struct device sc_dev; /* base device */
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struct sbusdev sc_sd; /* sbus device */
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struct fbdevice sc_fb; /* frame buffer device */
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bus_space_tag_t sc_bustag;
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bus_type_t sc_ctl_btype; /* phys address description */
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bus_addr_t sc_ctl_paddr; /* for device mmap() */
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bus_size_t sc_ctl_psize; /* for device mmap() */
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bus_space_handle_t sc_ctl_memh; /* bus space handle */
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bus_type_t sc_cmd_btype; /* phys address description */
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bus_addr_t sc_cmd_paddr; /* for device mmap() */
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bus_size_t sc_cmd_psize; /* for device mmap() */
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bus_space_handle_t sc_cmd_memh; /* bus space handle */
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bus_type_t sc_fb_btype; /* phys address description */
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bus_addr_t sc_fb_paddr; /* for device mmap() */
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bus_size_t sc_fb_psize; /* for device mmap() */
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bus_space_handle_t sc_fb_memh; /* bus space handle */
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uint32_t sc_junk;
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union bt_cmap sc_cmap; /* Brooktree color map */
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};
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#define DAC_CMAP_WRIDX 0x0200 /* IBM RGB528 Palette Address (Write) */
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#define DAC_CMAP_DATA 0x0208 /* IBM RGB528 Palette Data */
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#define DAC_PXL_MASK 0x0210 /* IBM RGB528 Pixel Mask */
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#define DAC_CMAP_RDIDX 0x0218 /* IBM RGB528 Palette Address (Read) */
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#define DAC_INDX_LO 0x0220 /* IBM RGB528 Index Low */
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#define DAC_INDX_HI 0x0228 /* IBM RGB528 Index High */
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#define DAC_INDX_DATA 0x0230 /* IBM RGB528 Index Data (Indexed Registers) */
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#define DAC_INDX_CTL 0x0238 /* IBM RGB528 Index Control */
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/* autoconfiguration driver */
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static int p9100_sbus_match(struct device *, struct cfdata *, void *);
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static void p9100_sbus_attach(struct device *, struct device *, void *);
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static void p9100unblank(struct device *);
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/* cdevsw prototypes */
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cdev_decl(p9100);
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struct cfattach pnozz_ca = {
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sizeof(struct p9100_softc), p9100_sbus_match, p9100_sbus_attach
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};
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extern struct cfdriver pnozz_cd;
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/* frame buffer generic driver */
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static struct fbdriver p9100fbdriver = {
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p9100unblank, p9100open, p9100close, p9100ioctl, p9100poll,
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p9100mmap
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};
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extern int fbnode;
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extern struct tty *fbconstty;
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static void p9100loadcmap(struct p9100_softc *, int, int);
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static void p9100_set_video(struct p9100_softc *, int);
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static int p9100_get_video(struct p9100_softc *);
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static uint32_t p9100_ctl_read_4(struct p9100_softc *, bus_size_t);
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#if 0
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static void p9100_ctl_write_4(struct p9100_softc *, bus_size_t, uint32_t);
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static uint8_t p9100_ctl_read_1(struct p9100_softc *, bus_size_t);
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static void p9100_ctl_write_1(struct p9100_softc *, bus_size_t, uint8_t);
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static uint8_t p9100_ramdac_read(struct p9100_softc *, bus_size_t);
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static void p9100_ramdac_write(struct p9100_softc *, bus_size_t, uint8_t);
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#endif
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/*
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* Match a p9100.
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*/
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static int
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p9100_sbus_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct sbus_attach_args *sa = aux;
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return (strcmp("p9100", sa->sa_name) == 0);
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}
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/*
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* Attach a display. We need to notice if it is the console, too.
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*/
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static void
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p9100_sbus_attach(struct device *parent, struct device *self, void *args)
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{
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struct p9100_softc *sc = (struct p9100_softc *)self;
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struct sbus_attach_args *sa = args;
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struct fbdevice *fb = &sc->sc_fb;
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int isconsole;
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int i;
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/* Remember cookies for p9100_mmap() */
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sc->sc_bustag = sa->sa_bustag;
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sc->sc_ctl_btype = (bus_type_t)sa->sa_reg[0].sbr_slot;
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sc->sc_ctl_paddr = (bus_addr_t)sa->sa_reg[0].sbr_offset;
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sc->sc_ctl_psize = (bus_size_t)sa->sa_reg[0].sbr_size;
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sc->sc_cmd_btype = (bus_type_t)sa->sa_reg[1].sbr_slot;
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sc->sc_cmd_paddr = (bus_addr_t)sa->sa_reg[1].sbr_offset;
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sc->sc_cmd_psize = (bus_size_t)sa->sa_reg[1].sbr_size;
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sc->sc_fb_btype = (bus_type_t)sa->sa_reg[2].sbr_slot;
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sc->sc_fb_paddr = (bus_addr_t)sa->sa_reg[2].sbr_offset;
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sc->sc_fb_psize = (bus_size_t)sa->sa_reg[2].sbr_size;
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fb->fb_driver = &p9100fbdriver;
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fb->fb_device = &sc->sc_dev;
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fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags & FB_USERMASK;
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fb->fb_type.fb_type = FBTYPE_SUN2COLOR;
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/*
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* When the ROM has mapped in a p9100 display, the address
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* maps only the video RAM, so in any case we have to map the
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* registers ourselves. We only need the video RAM if we are
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* going to print characters via rconsole.
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*/
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if (sbus_bus_map(sc->sc_bustag, sc->sc_ctl_btype,
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sc->sc_ctl_paddr, sc->sc_ctl_psize,
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BUS_SPACE_MAP_LINEAR, 0,
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&sc->sc_ctl_memh) != 0) {
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printf("%s: cannot map control registers\n", self->dv_xname);
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return;
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}
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if (sbus_bus_map(sc->sc_bustag, sc->sc_cmd_btype,
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sc->sc_cmd_paddr, sc->sc_cmd_psize,
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BUS_SPACE_MAP_LINEAR, 0,
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&sc->sc_cmd_memh) != 0) {
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printf("%s: cannot map command registers\n", self->dv_xname);
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return;
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}
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isconsole = sa->sa_node == fbnode && fbconstty != NULL;
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if (sa->sa_npromvaddrs != 0)
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fb->fb_pixels = (caddr_t)sa->sa_promvaddrs[0];
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if (isconsole && fb->fb_pixels == NULL) {
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if (sbus_bus_map(sc->sc_bustag, sc->sc_fb_btype,
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sc->sc_fb_paddr, sc->sc_fb_psize,
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BUS_SPACE_MAP_LINEAR, 0,
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&sc->sc_fb_memh) != 0) {
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printf("%s: cannot map framebuffer\n", self->dv_xname);
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return;
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}
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fb->fb_pixels = (char *)sc->sc_fb_memh;
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} else {
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sc->sc_fb_memh = (bus_space_handle_t) fb->fb_pixels;
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}
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i = p9100_ctl_read_4(sc, 0x0004);
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switch ((i >> 26) & 7) {
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case 5: fb->fb_type.fb_depth = 32; break;
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case 7: fb->fb_type.fb_depth = 24; break;
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case 3: fb->fb_type.fb_depth = 16; break;
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case 2: fb->fb_type.fb_depth = 8; break;
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default: {
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panic("pnozz: can't determine screen depth (0x%02x)", i);
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}
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}
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fb_setsize_obp(fb, fb->fb_type.fb_depth, 800, 600, sa->sa_node);
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sbus_establish(&sc->sc_sd, &sc->sc_dev);
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fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes;
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printf(": rev %d, %dx%d, depth %d",
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(i & 7), fb->fb_type.fb_width, fb->fb_type.fb_height,
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fb->fb_type.fb_depth);
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fb->fb_type.fb_cmsize = getpropint(sa->sa_node, "cmsize", 256);
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if ((1 << fb->fb_type.fb_depth) != fb->fb_type.fb_cmsize)
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printf(", %d entry colormap", fb->fb_type.fb_cmsize);
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#if 0
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/* grab initial (current) color map */
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p9100_ramdac_write(sc, DAC_CMAP_RDIDX, 0);
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for (i = 0; i < fb->fb_type.fb_cmsize; i++) {
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int j;
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for (j = 0; j < 3; j++) {
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sc->sc_cmap.cm_map[i][j] = p9100_ramdac_read(sc, DAC_CMAP_DATA);
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}
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if ((sc->sc_cmap.cm_map[i][0] != 0 &&
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sc->sc_cmap.cm_map[i][1] != 0 &&
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sc->sc_cmap.cm_map[i][2] != 0) &&
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(sc->sc_cmap.cm_map[i][0] != 255 &&
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sc->sc_cmap.cm_map[i][1] != 255 &&
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sc->sc_cmap.cm_map[i][2] != 255)) {
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printf(", cmap[%d]=<%d,%d,%d>", i, sc->sc_cmap.cm_map[i][0],
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sc->sc_cmap.cm_map[i][1], sc->sc_cmap.cm_map[i][2]);
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}
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}
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#endif
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/* make sure we are not blanked */
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p9100_set_video(sc, 1);
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if (isconsole) {
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printf(" (console)\n");
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#ifdef RASTERCONSOLE
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fbrcons_init(fb);
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#endif
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} else
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printf("\n");
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if (sa->sa_node == fbnode)
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fb_attach(fb, isconsole);
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}
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int
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p9100open(dev_t dev, int flags, int mode, struct proc *p)
|
||
|
|
{
|
||
|
|
int unit = minor(dev);
|
||
|
|
|
||
|
|
if (unit >= pnozz_cd.cd_ndevs || pnozz_cd.cd_devs[unit] == NULL)
|
||
|
|
return (ENXIO);
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
p9100close(dev_t dev, int flags, int mode, struct proc *p)
|
||
|
|
{
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
p9100ioctl(dev_t dev, u_long cmd, caddr_t data, int flags, struct proc *p)
|
||
|
|
{
|
||
|
|
struct p9100_softc *sc = pnozz_cd.cd_devs[minor(dev)];
|
||
|
|
struct fbgattr *fba;
|
||
|
|
int error;
|
||
|
|
|
||
|
|
switch (cmd) {
|
||
|
|
|
||
|
|
case FBIOGTYPE:
|
||
|
|
*(struct fbtype *)data = sc->sc_fb.fb_type;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FBIOGATTR:
|
||
|
|
fba = (struct fbgattr *)data;
|
||
|
|
fba->real_type = sc->sc_fb.fb_type.fb_type;
|
||
|
|
fba->owner = 0; /* XXX ??? */
|
||
|
|
fba->fbtype = sc->sc_fb.fb_type;
|
||
|
|
fba->sattr.flags = 0;
|
||
|
|
fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
|
||
|
|
fba->sattr.dev_specific[0] = -1;
|
||
|
|
fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
|
||
|
|
fba->emu_types[1] = -1;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FBIOGETCMAP:
|
||
|
|
return (bt_getcmap((struct fbcmap *)data, &sc->sc_cmap, 256));
|
||
|
|
|
||
|
|
case FBIOPUTCMAP:
|
||
|
|
/* copy to software map */
|
||
|
|
#define p ((struct fbcmap *)data)
|
||
|
|
error = bt_putcmap(p, &sc->sc_cmap, 256);
|
||
|
|
if (error)
|
||
|
|
return (error);
|
||
|
|
/* now blast them into the chip */
|
||
|
|
/* XXX should use retrace interrupt */
|
||
|
|
p9100loadcmap(sc, p->index, p->count);
|
||
|
|
#undef p
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FBIOGVIDEO:
|
||
|
|
*(int *)data = p9100_get_video(sc);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case FBIOSVIDEO:
|
||
|
|
p9100_set_video(sc, *(int *)data);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
return (ENOTTY);
|
||
|
|
}
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
p9100poll(dev_t dev, int events, struct proc *p)
|
||
|
|
{
|
||
|
|
return seltrue(dev, events, p);
|
||
|
|
}
|
||
|
|
|
||
|
|
static uint32_t
|
||
|
|
p9100_ctl_read_4(struct p9100_softc *sc, bus_size_t off)
|
||
|
|
{
|
||
|
|
sc->sc_junk += bus_space_read_4(sc->sc_bustag, sc->sc_fb_memh, off);
|
||
|
|
return bus_space_read_4(sc->sc_bustag, sc->sc_ctl_memh, off);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
static void
|
||
|
|
p9100_ctl_write_4(struct p9100_softc *sc, bus_size_t off, uint32_t v)
|
||
|
|
{
|
||
|
|
sc->sc_junk += bus_space_read_4(sc->sc_bustag, sc->sc_fb_memh, off);
|
||
|
|
bus_space_write_4(sc->sc_bustag, sc->sc_ctl_memh, off, v);
|
||
|
|
}
|
||
|
|
|
||
|
|
static uint8_t
|
||
|
|
p9100_ctl_read_1(struct p9100_softc *sc, bus_size_t off)
|
||
|
|
{
|
||
|
|
sc->sc_junk += bus_space_read_4(sc->sc_bustag, sc->sc_fb_memh, off);
|
||
|
|
return bus_space_read_1(sc->sc_bustag, sc->sc_ctl_memh, off);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
p9100_ctl_write_1(struct p9100_softc *sc, bus_size_t off, uint8_t v)
|
||
|
|
{
|
||
|
|
sc->sc_junk += bus_space_read_4(sc->sc_bustag, sc->sc_fb_memh, off);
|
||
|
|
bus_space_write_1(sc->sc_bustag, sc->sc_ctl_memh, off, v);
|
||
|
|
}
|
||
|
|
|
||
|
|
static uint8_t
|
||
|
|
p9100_ramdac_read(struct p9100_softc *sc, bus_size_t off)
|
||
|
|
{
|
||
|
|
sc->sc_junk += p9100_ctl_read_4(sc, 0x0004);
|
||
|
|
DELAY(1);
|
||
|
|
return p9100_ctl_read_1(sc, off);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
p9100_ramdac_write(struct p9100_softc *sc, bus_size_t off, uint8_t v)
|
||
|
|
{
|
||
|
|
sc->sc_junk += p9100_ctl_read_4(sc, 0x0004);
|
||
|
|
DELAY(1);
|
||
|
|
p9100_ctl_write_1(sc, off, v);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Undo the effect of an FBIOSVIDEO that turns the video off.
|
||
|
|
*/
|
||
|
|
static void
|
||
|
|
p9100unblank(struct device *dev)
|
||
|
|
{
|
||
|
|
|
||
|
|
p9100_set_video((struct p9100_softc *)dev, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
p9100_set_video(struct p9100_softc *sc, int enable)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
p9100_get_video(struct p9100_softc *sc)
|
||
|
|
{
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Load a subset of the current (new) colormap into the IBM RAMDAC.
|
||
|
|
*/
|
||
|
|
static void
|
||
|
|
p9100loadcmap(struct p9100_softc *sc, int start, int ncolors)
|
||
|
|
{
|
||
|
|
#if 0
|
||
|
|
u_char *p;
|
||
|
|
|
||
|
|
p9100_ramdac_write(sc, DAC_CMAP_WRIDX, start);
|
||
|
|
|
||
|
|
for (p = sc->sc_cmap.cm_map[start], ncolors *= 3; --ncolors > 0; p++) {
|
||
|
|
p9100_ramdac_write(sc, DAC_CMAP_DATA, *p);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return the address that would map the given device at the given
|
||
|
|
* offset, allowing for the given protection, or return -1 for error.
|
||
|
|
*/
|
||
|
|
int
|
||
|
|
p9100mmap(dev_t dev, int off, int prot)
|
||
|
|
{
|
||
|
|
struct p9100_softc *sc = pnozz_cd.cd_devs[minor(dev)];
|
||
|
|
bus_space_handle_t bh;
|
||
|
|
|
||
|
|
if (off & PGOFSET)
|
||
|
|
panic("p9100mmap");
|
||
|
|
if (off < 0)
|
||
|
|
return (-1);
|
||
|
|
|
||
|
|
if (off >= sc->sc_fb_psize + sc->sc_ctl_psize + sc->sc_cmd_psize)
|
||
|
|
return (-1);
|
||
|
|
|
||
|
|
if (off <= sc->sc_fb_psize) {
|
||
|
|
if (bus_space_mmap(sc->sc_bustag,
|
||
|
|
sc->sc_fb_btype,
|
||
|
|
sc->sc_fb_paddr + off,
|
||
|
|
BUS_SPACE_MAP_LINEAR, &bh))
|
||
|
|
return (-1);
|
||
|
|
return ((int)bh);
|
||
|
|
}
|
||
|
|
off -= sc->sc_fb_psize;
|
||
|
|
if (off <= sc->sc_ctl_psize) {
|
||
|
|
if (bus_space_mmap(sc->sc_bustag,
|
||
|
|
sc->sc_ctl_btype,
|
||
|
|
sc->sc_ctl_paddr + off,
|
||
|
|
BUS_SPACE_MAP_LINEAR, &bh))
|
||
|
|
return (-1);
|
||
|
|
return ((int)bh);
|
||
|
|
}
|
||
|
|
off -= sc->sc_ctl_psize;
|
||
|
|
|
||
|
|
if (bus_space_mmap(sc->sc_bustag,
|
||
|
|
sc->sc_cmd_btype,
|
||
|
|
sc->sc_cmd_paddr + off,
|
||
|
|
BUS_SPACE_MAP_LINEAR, &bh))
|
||
|
|
return (-1);
|
||
|
|
return ((int)bh);
|
||
|
|
}
|