fbfc0872d8
driver by Tohru Nisimura (a very good framework for a FB driver, BTW!), using bits of Marcus's original driver for the hardware access. The main advantage of this version is that is uses rasops (which is faster than the rcons stuff) and wsfont, so you can select the console font in the kernel config file. Using the BOLD8x16 font, you get an 80x30 console (vast improvement compared to the Gallant12x22 font).
473 lines
13 KiB
C
473 lines
13 KiB
C
/* $NetBSD: pvr.c,v 1.4 2001/02/01 01:25:56 thorpej Exp $ */
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/*-
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* Copyright (c) 2001 Marcus Comstedt.
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* Copyright (c) 2001 Jason R. Thorpe.
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* 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 Marcus Comstedt.
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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) 1998, 1999 Tohru Nishimura. 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 Tohru Nishimura
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: pvr.c,v 1.4 2001/02/01 01:25:56 thorpej 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/malloc.h>
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#include <sys/buf.h>
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#include <sys/ioctl.h>
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <dev/cons.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/wscons/wscons_callbacks.h>
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#include <dev/rasops/rasops.h>
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#include <dev/wsfont/wsfont.h>
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#include <dreamcast/dev/pvrvar.h>
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#include <dreamcast/dev/maple/mkbdvar.h>
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#include <sh3/shbvar.h>
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#include "mkbd.h"
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struct fb_devconfig {
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vaddr_t dc_vaddr; /* framebuffer virtual address */
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vaddr_t dc_paddr; /* framebuffer physical address */
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int dc_wid; /* width of frame buffer */
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int dc_ht; /* height of frame buffer */
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int dc_depth; /* depth, bits per pixel */
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int dc_rowbytes; /* bytes in a FB scan line */
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vaddr_t dc_videobase; /* base of flat frame buffer */
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int dc_blanked; /* currently has video disabled */
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struct rasops_info rinfo;
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};
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struct pvr_softc {
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struct device sc_dev;
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struct fb_devconfig *sc_dc; /* device configuration */
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int nscreens;
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};
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int pvr_match(struct device *, struct cfdata *, void *);
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void pvr_attach(struct device *, struct device *, void *);
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struct cfattach pvr_ca = {
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sizeof(struct pvr_softc), pvr_match, pvr_attach,
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};
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void pvr_getdevconfig(struct fb_devconfig *);
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struct fb_devconfig pvr_console_dc;
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char pvr_stdscreen_textgeom[32] = { "std" }; /* XXX yuck */
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struct wsscreen_descr pvr_stdscreen = {
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pvr_stdscreen_textgeom, 0, 0,
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0, /* textops */
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0, 0,
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WSSCREEN_WSCOLORS,
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};
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const struct wsscreen_descr *_pvr_scrlist[] = {
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&pvr_stdscreen,
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};
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const struct wsscreen_list pvr_screenlist = {
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sizeof(_pvr_scrlist) / sizeof(struct wsscreen_descr *), _pvr_scrlist
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};
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int pvrioctl(void *, u_long, caddr_t, int, struct proc *);
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paddr_t pvrmmap(void *, off_t, int);
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int pvr_alloc_screen(void *, const struct wsscreen_descr *,
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void **, int *, int *, long *);
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void pvr_free_screen(void *, void *);
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int pvr_show_screen(void *, void *, int,
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void (*)(void *, int, int), void *);
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const struct wsdisplay_accessops pvr_accessops = {
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pvrioctl,
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pvrmmap,
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pvr_alloc_screen,
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pvr_free_screen,
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pvr_show_screen,
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NULL, /* load_font */
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};
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void pvrinit(struct fb_devconfig *);
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int pvr_is_console;
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int
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pvr_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct shb_attach_args *sa = aux;
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if (strcmp("pvr", match->cf_driver->cd_name) != 0)
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return (0);
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sa->ia_iosize = 0; /* 0x1400 */;
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return (1);
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}
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void
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pvr_getdevconfig(struct fb_devconfig *dc)
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{
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int i, cookie;
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dc->dc_paddr = 0x05000000;
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dc->dc_vaddr = SH3_PHYS_TO_P2SEG(dc->dc_paddr);
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dc->dc_wid = 640;
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dc->dc_ht = 480;
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dc->dc_depth = 16;
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dc->dc_rowbytes = dc->dc_wid * (dc->dc_depth / 8);
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dc->dc_videobase = dc->dc_vaddr;
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dc->dc_blanked = 0;
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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) = 0x0;
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/* Initialize the device. */
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pvrinit(dc);
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dc->rinfo.ri_flg = 0;
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dc->rinfo.ri_depth = dc->dc_depth;
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dc->rinfo.ri_bits = (void *) dc->dc_videobase;
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dc->rinfo.ri_width = dc->dc_wid;
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dc->rinfo.ri_height = dc->dc_ht;
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dc->rinfo.ri_stride = dc->dc_rowbytes;
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wsfont_init();
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/* prefer 8 pixel wide font */
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if ((cookie = wsfont_find(NULL, 8, 0, 0)) <= 0)
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cookie = wsfont_find(NULL, 0, 0, 0);
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if (cookie <= 0) {
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printf("pvr: font table is empty\n");
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return;
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}
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if (wsfont_lock(cookie, &dc->rinfo.ri_font,
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WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R) <= 0) {
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printf("pvr: unable to lock font\n");
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return;
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}
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dc->rinfo.ri_wsfcookie = cookie;
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rasops_init(&dc->rinfo, 500, 500);
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/* XXX shouldn't be global */
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pvr_stdscreen.nrows = dc->rinfo.ri_rows;
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pvr_stdscreen.ncols = dc->rinfo.ri_cols;
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pvr_stdscreen.textops = &dc->rinfo.ri_ops;
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pvr_stdscreen.capabilities = dc->rinfo.ri_caps;
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/* XXX yuck */
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sprintf(pvr_stdscreen_textgeom, "%dx%d", pvr_stdscreen.ncols,
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pvr_stdscreen.nrows);
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}
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void
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pvr_attach(struct device *parent, struct device *self, void *aux)
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{
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struct pvr_softc *sc = (void *) self;
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struct wsemuldisplaydev_attach_args waa;
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int console;
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console = pvr_is_console;
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if (console) {
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sc->sc_dc = &pvr_console_dc;
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sc->nscreens = 1;
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} else {
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sc->sc_dc = malloc(sizeof(struct fb_devconfig), M_DEVBUF,
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M_WAITOK);
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pvr_getdevconfig(sc->sc_dc);
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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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/* XXX Colormap initialization? */
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waa.console = console;
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waa.scrdata = &pvr_screenlist;
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waa.accessops = &pvr_accessops;
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waa.accesscookie = sc;
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(void) config_found(self, &waa, wsemuldisplaydevprint);
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}
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int
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pvrioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
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{
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struct pvr_softc *sc = v;
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struct fb_devconfig *dc = sc->sc_dc;
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switch (cmd) {
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case WSDISPLAYIO_GTYPE:
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*(u_int *)data = WSDISPLAY_TYPE_DCPVR;
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return (0);
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case WSDISPLAYIO_GINFO:
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#define wsd_fbip ((struct wsdisplay_fbinfo *)data)
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wsd_fbip->height = sc->sc_dc->dc_ht;
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wsd_fbip->width = sc->sc_dc->dc_wid;
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wsd_fbip->depth = sc->sc_dc->dc_depth;
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wsd_fbip->cmsize = 0; /* XXX Colormap */
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#undef wsd_fbip
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return (0);
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case WSDISPLAYIO_GETCMAP:
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case WSDISPLAYIO_PUTCMAP:
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return (ENOTTY); /* XXX Colormap */
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case WSDISPLAYIO_SVIDEO:
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return (ENOTTY); /* XXX */
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case WSDISPLAYIO_GVIDEO:
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*(u_int *)data = dc->dc_blanked ?
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WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON;
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return (0);
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case WSDISPLAYIO_GCURPOS:
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case WSDISPLAYIO_SCURPOS:
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case WSDISPLAYIO_GCURMAX:
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case WSDISPLAYIO_GCURSOR:
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case WSDISPLAYIO_SCURSOR:
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return (ENOTTY); /* XXX */
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}
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return (ENOTTY);
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}
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paddr_t
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pvrmmap(void *v, off_t offset, int prot)
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{
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/*
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* XXX This should be easy to support -- just need to define
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* XXX offsets for the contol regs, etc.
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*/
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return (-1);
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}
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int
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pvr_alloc_screen(void *v, const struct wsscreen_descr *type,
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void **cookiep, int *curxp, int *curyp, long *attrp)
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{
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struct pvr_softc *sc = v;
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long defattr;
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if (sc->nscreens > 0)
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return (ENOMEM);
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*cookiep = &sc->sc_dc->rinfo; /* one and only for now */
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*curxp = 0;
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*curyp = 0;
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(*sc->sc_dc->rinfo.ri_ops.alloc_attr)(&sc->sc_dc->rinfo, 0, 0, 0,
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&defattr);
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*attrp = defattr;
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sc->nscreens++;
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return (0);
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}
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void
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pvr_free_screen(void *v, void *cookie)
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{
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struct pvr_softc *sc = v;
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if (sc->sc_dc == &pvr_console_dc)
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panic("pvr_free_screen: console");
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sc->nscreens--;
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}
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int
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pvr_show_screen(void *v, void *cookie, int waitok,
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void (*cb)(void *, int, int), void *cbarg)
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{
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return (0);
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}
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static void
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pvr_check_cable(int *vgamode_p, int *rgbmode_p)
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{
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__volatile u_int32_t *porta =
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(__volatile u_int32_t *)0xff80002c;
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u_int16_t v;
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/* PORT8 and PORT9 is input */
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*porta = (*porta & ~0xf0000) | 0xa0000;
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/* Read PORT8 and PORT9 */
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v = ((*(__volatile u_int16_t *)(porta + 1)) >> 8) & 3;
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if ((v & 2) == 0)
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*vgamode_p = *rgbmode_p = 1;
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else {
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*vgamode_p = 0;
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*rgbmode_p = (v & 1) ? 0 : 1;
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}
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}
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void
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pvrinit(struct fb_devconfig *dc)
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{
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__volatile u_int32_t *pvr = (__volatile u_int32_t *)
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SH3_PHYS_TO_P2SEG(0x005f8000);
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int display_lines_per_field = 240;
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int modulo = 1, voffset;
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int vgamode, rgbmode;
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pvr_check_cable(&vgamode, &rgbmode);
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pvr[8/4] = 0; /* reset */
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pvr[0x40/4] = 0; /* black border */
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if (vgamode) {
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pvr[0x44/4] = 0x800004; /* 31kHz, RGB565 */
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pvr[0xd0/4] = 0x100; /* video output */
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display_lines_per_field = 480;
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voffset = 36;
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} else {
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pvr[0x44/4] = 0x000004; /* 15kHz, RGB565 */
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pvr[0xd0/4] = 0x110; /* video output, NTSC, interlace */
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modulo += 640 * 2 / 4; /* interlace -> skip every other line */
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voffset = 18;
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}
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pvr[0x50/4] = 0; /* video base address, long field */
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pvr[0x54/4] = 640 * 2; /* video base address, short field */
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pvr[0x5c/4] = (modulo << 20) | ((display_lines_per_field - 1) << 10) |
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(640 * 2 / 4 - 1);
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voffset = (voffset << 16) | voffset;
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pvr[0xf0/4] = voffset; /* V start */
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pvr[0xdc/4] = voffset + display_lines_per_field;/* V border */
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pvr[0xec/4] = 164; /* H start */
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pvr[0xd8/4] = (524 << 16) | 857; /* HV counter */
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pvr[0xd4/4] = (126 << 16) | 837; /* H border */
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pvr[0xe8/4] = 22 << 16;
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/* RGB / composite */
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*(__volatile u_int32_t *)
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SH3_PHYS_TO_P2SEG(0x00702c00) = (rgbmode ? 0 : 3) << 8;
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pvr[0x44/4] |= 1; /* display on */
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}
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/* Console support. */
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void pvrcnprobe(struct consdev *);
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void pvrcninit(struct consdev *);
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void
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pvrcninit(struct consdev *cndev)
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{
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struct fb_devconfig *dcp = &pvr_console_dc;
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long defattr;
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pvr_getdevconfig(dcp);
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(*dcp->rinfo.ri_ops.alloc_attr)(&dcp->rinfo, 0, 0, 0, &defattr);
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wsdisplay_cnattach(&pvr_stdscreen, &dcp->rinfo, 0, 0, defattr);
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pvr_is_console = 1;
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cn_tab->cn_pri = CN_INTERNAL;
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#if NMKBD > 0
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mkbd_cnattach(); /* connect keyboard and screen together */
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#endif
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}
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void
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pvrcnprobe(struct consdev *cndev)
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{
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#if NWSDISPLAY > 0
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int maj, unit;
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#endif
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cndev->cn_dev = NODEV;
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cndev->cn_pri = CN_NORMAL;
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#if NWSDISPLAY > 0
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unit = 0;
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for (maj = 0; maj < nchrdev; maj++) {
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if (cdevsw[maj].d_open == wsdisplayopen)
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break;
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}
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if (maj != nchrdev) {
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cndev->cn_pri = CN_INTERNAL;
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cndev->cn_dev = makedev(maj, unit);
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}
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#endif
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}
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