373 lines
9.9 KiB
C
373 lines
9.9 KiB
C
/* $NetBSD: bivideo.c,v 1.5 2000/03/20 12:45:42 takemura Exp $ */
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/*-
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* Copyright (c) 1999
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* Shin Takemura and PocketBSD Project. All rights reserved.
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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 PocketBSD project
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* and its contributors.
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* 4. Neither the name of the project 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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*/
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#define FBDEBUG
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static const char _copyright[] __attribute__ ((unused)) =
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"Copyright (c) 1999 Shin Takemura. All rights reserved.";
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static const char _rcsid[] __attribute__ ((unused)) =
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"$Id: bivideo.c,v 1.5 2000/03/20 12:45:42 takemura Exp $";
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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/conf.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <sys/ioctl.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/bootinfo.h>
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#include <machine/platid.h>
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#include <machine/platid_mask.h>
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#include <dev/wscons/wsconsio.h>
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#include <arch/hpcmips/dev/hpcfbvar.h>
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#include <arch/hpcmips/dev/hpcfbio.h>
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#include <arch/hpcmips/dev/bivideovar.h>
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#include <arch/hpcmips/dev/hpccmapvar.h>
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/*
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* function prototypes
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*/
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int bivideomatch __P((struct device *, struct cfdata *, void *));
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void bivideoattach __P((struct device *, struct device *, void *));
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int bivideo_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
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int bivideo_mmap __P((void *, off_t, int));
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struct bivideo_softc {
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struct device sc_dev;
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struct hpcfb_fbconf sc_fbconf;
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struct hpcfb_dspconf sc_dspconf;
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};
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static int bivideo_init __P((struct hpcfb_fbconf *fb));
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/*
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* static variables
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*/
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struct cfattach bivideo_ca = {
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sizeof(struct bivideo_softc), bivideomatch, bivideoattach,
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};
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struct hpcfb_accessops bivideo_ha = {
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bivideo_ioctl, bivideo_mmap
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};
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static int console_flag = 0;
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static int attach_flag = 0;
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/*
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* function bodies
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*/
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int
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bivideomatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct mainbus_attach_args *ma = aux;
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if (strcmp(ma->ma_name, match->cf_driver->cd_name))
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return 0;
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return (1);
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}
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void
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bivideoattach(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 bivideo_softc *sc = (struct bivideo_softc *)self;
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struct hpcfb_attach_args ha;
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if (attach_flag) {
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panic("%s(%d): bivideo attached twice", __FILE__, __LINE__);
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}
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attach_flag = 1;
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bivideo_init(&sc->sc_fbconf);
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printf(": pseudo video controller");
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if (console_flag) {
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printf(", console");
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}
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printf("\n");
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ha.ha_console = console_flag;
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ha.ha_accessops = &bivideo_ha;
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ha.ha_accessctx = sc;
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ha.ha_curfbconf = 0;
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ha.ha_nfbconf = 1;
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ha.ha_fbconflist = &sc->sc_fbconf;
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ha.ha_curdspconf = 0;
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ha.ha_ndspconf = 1;
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ha.ha_dspconflist = &sc->sc_dspconf;
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config_found(self, &ha, hpcfbprint);
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}
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int
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bivideo_getcnfb(fb)
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struct hpcfb_fbconf *fb;
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{
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console_flag = 1;
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return bivideo_init(fb);
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}
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static int
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bivideo_init(fb)
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struct hpcfb_fbconf *fb;
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{
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/*
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* get fb settings from bootinfo
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*/
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if (bootinfo == NULL ||
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bootinfo->fb_addr == 0 ||
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bootinfo->fb_line_bytes == 0 ||
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bootinfo->fb_width == 0 ||
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bootinfo->fb_height == 0) {
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printf("no frame buffer infomation.\n");
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return (-1);
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}
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/* zero fill */
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bzero(fb, sizeof(*fb));
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fb->hf_conf_index = 0; /* configuration index */
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fb->hf_nconfs = 1; /* how many configurations */
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strcpy(fb->hf_name, "built-in video");
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/* frame buffer name */
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strcpy(fb->hf_conf_name, "default");
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/* configuration name */
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fb->hf_height = bootinfo->fb_height;
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fb->hf_width = bootinfo->fb_width;
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fb->hf_baseaddr = mips_ptob(mips_btop(bootinfo->fb_addr));
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fb->hf_offset = (u_long)bootinfo->fb_addr - fb->hf_baseaddr;
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/* frame buffer start offset */
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fb->hf_bytes_per_line = bootinfo->fb_line_bytes;
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fb->hf_nplanes = 1;
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fb->hf_bytes_per_plane = bootinfo->fb_height *
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bootinfo->fb_line_bytes;
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fb->hf_access_flags |= HPCFB_ACCESS_BYTE;
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fb->hf_access_flags |= HPCFB_ACCESS_WORD;
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fb->hf_access_flags |= HPCFB_ACCESS_DWORD;
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switch (bootinfo->fb_type) {
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/*
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* gray scale
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*/
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case BIFB_D2_M2L_3:
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case BIFB_D2_M2L_3x2:
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fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
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/* fall through */
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case BIFB_D2_M2L_0:
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case BIFB_D2_M2L_0x2:
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fb->hf_class = HPCFB_CLASS_GRAYSCALE;
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fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
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fb->hf_pack_width = 8;
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fb->hf_pixels_per_pack = 4;
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fb->hf_pixel_width = 2;
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fb->hf_class_data_length = sizeof(struct hf_gray_tag);
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fb->hf_u.hf_gray.hf_flags = 0; /* reserved for future use */
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break;
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/*
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* indexed color
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*/
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case BIFB_D8_FF:
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fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
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/* fall through */
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case BIFB_D8_00:
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fb->hf_class = HPCFB_CLASS_INDEXCOLOR;
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fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
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fb->hf_pack_width = 8;
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fb->hf_pixels_per_pack = 1;
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fb->hf_pixel_width = 8;
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fb->hf_class_data_length = sizeof(struct hf_indexed_tag);
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fb->hf_u.hf_indexed.hf_flags = 0; /* reserved for future use */
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break;
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/*
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* RGB color
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*/
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case BIFB_D16_FFFF:
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fb->hf_access_flags |= HPCFB_ACCESS_REVERSE;
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/* fall through */
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case BIFB_D16_0000:
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fb->hf_class = HPCFB_CLASS_RGBCOLOR;
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fb->hf_access_flags |= HPCFB_ACCESS_STATIC;
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#if BYTE_ORDER == LITTLE_ENDIAN
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fb->hf_swap_flags = HPCFB_SWAP_BYTE;
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#endif
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fb->hf_pack_width = 16;
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fb->hf_pixels_per_pack = 1;
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fb->hf_pixel_width = 16;
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fb->hf_class_data_length = sizeof(struct hf_rgb_tag);
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fb->hf_u.hf_rgb.hf_flags = 0; /* reserved for future use */
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fb->hf_u.hf_rgb.hf_red_width = 5;
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fb->hf_u.hf_rgb.hf_red_shift = 11;
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fb->hf_u.hf_rgb.hf_green_width = 6;
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fb->hf_u.hf_rgb.hf_green_shift = 5;
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fb->hf_u.hf_rgb.hf_blue_width = 5;
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fb->hf_u.hf_rgb.hf_blue_shift = 0;
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fb->hf_u.hf_rgb.hf_alpha_width = 0;
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fb->hf_u.hf_rgb.hf_alpha_shift = 0;
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break;
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default:
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printf("unknown type (=%d).\n", bootinfo->fb_type);
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return (-1);
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break;
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}
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return (0); /* no error */
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}
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int
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bivideo_ioctl(v, cmd, data, flag, p)
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void *v;
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u_long cmd;
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caddr_t data;
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int flag;
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struct proc *p;
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{
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struct bivideo_softc *sc = (struct bivideo_softc *)v;
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struct hpcfb_fbconf *fbconf;
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struct hpcfb_dspconf *dspconf;
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struct wsdisplay_cmap *cmap;
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switch (cmd) {
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case WSDISPLAYIO_GETCMAP:
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cmap = (struct wsdisplay_cmap*)data;
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if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR ||
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sc->sc_fbconf.hf_pack_width != 8 ||
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256 <= cmap->index ||
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256 < (cmap->index + cmap->count))
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return (EINVAL);
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if (!uvm_useracc(cmap->red, cmap->count, B_WRITE) ||
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!uvm_useracc(cmap->green, cmap->count, B_WRITE) ||
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!uvm_useracc(cmap->blue, cmap->count, B_WRITE))
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return (EFAULT);
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copyout(&bivideo_cmap_r[cmap->index], cmap->red, cmap->count);
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copyout(&bivideo_cmap_g[cmap->index], cmap->green,cmap->count);
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copyout(&bivideo_cmap_b[cmap->index], cmap->blue, cmap->count);
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return (0);
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case WSDISPLAYIO_PUTCMAP:
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/*
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* This driver can't set color map.
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*/
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return (EINVAL);
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case HPCFBIO_GCONF:
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fbconf = (struct hpcfb_fbconf *)data;
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if (fbconf->hf_conf_index != 0 &&
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fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
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return (EINVAL);
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}
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*fbconf = sc->sc_fbconf; /* structure assignment */
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return (0);
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case HPCFBIO_SCONF:
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fbconf = (struct hpcfb_fbconf *)data;
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if (fbconf->hf_conf_index != 0 &&
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fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) {
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return (EINVAL);
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}
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/*
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* nothing to do because we have only one configration
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*/
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return (0);
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case HPCFBIO_GDSPCONF:
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dspconf = (struct hpcfb_dspconf *)data;
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if ((dspconf->hd_unit_index != 0 &&
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dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
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(dspconf->hd_conf_index != 0 &&
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dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
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return (EINVAL);
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}
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*dspconf = sc->sc_dspconf; /* structure assignment */
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return (0);
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case HPCFBIO_SDSPCONF:
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dspconf = (struct hpcfb_dspconf *)data;
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if ((dspconf->hd_unit_index != 0 &&
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dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) ||
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(dspconf->hd_conf_index != 0 &&
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dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) {
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return (EINVAL);
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}
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/*
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* nothing to do
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* because we have only one unit and one configration
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*/
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return (0);
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case HPCFBIO_GOP:
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case HPCFBIO_SOP:
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/*
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* curently not implemented...
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*/
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return (EINVAL);
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}
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return (ENOTTY);
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}
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int
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bivideo_mmap(ctx, offset, prot)
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void *ctx;
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off_t offset;
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int prot;
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{
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struct bivideo_softc *sc = (struct bivideo_softc *)ctx;
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if (offset < 0 ||
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(sc->sc_fbconf.hf_bytes_per_plane +
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sc->sc_fbconf.hf_offset) < offset)
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return -1;
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return mips_btop(sc->sc_fbconf.hf_baseaddr + offset);
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}
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