626 lines
17 KiB
C
626 lines
17 KiB
C
/* $NetBSD: pvr.c,v 1.17 2002/10/02 05:11:19 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 1.17 2002/10/02 05:11:19 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/vmparam.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 "mkbd.h"
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#define PVRREG_FBSTART 0x05000000
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#define PVRREG_REGSTART 0x005f8000
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#define PVRREG_BRDCOLR 0x40
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#define BRDCOLR_BLUE(x) ((x) << 0)
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#define BRDCOLR_GREEN(x) ((x) << 8)
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#define BRDCOLR_RED(x) ((x) << 16)
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#define PVRREG_DIWMODE 0x44
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#define DIWMODE_DE (1U << 0) /* display enable */
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#define DIWMODE_SD (1U << 1) /* scan double enable */
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#define DIWMODE_COL(x) ((x) << 2)
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#define DIWMODE_COL_RGB555 DIWMODE_COL(0) /* RGB555, 16-bit */
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#define DIWMODE_COL_RGB565 DIWMODE_COL(1) /* RGB565, 16-bit */
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#define DIWMODE_COL_RGB888 DIWMODE_COL(2) /* RGB888, 24-bit */
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#define DIWMODE_COL_ARGB888 DIWMODE_COL(3) /* RGB888, 32-bit */
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#define DIWMODE_C (1U << 23) /* 2x clock enable (VGA) */
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#define PVRREG_DIWADDRL 0x50
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#define PVRREG_DIWADDRS 0x54
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#define PVRREG_DIWSIZE 0x5c
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#define DIWSIZE_DPL(x) ((x) << 0) /* pixel data per line */
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#define DIWSIZE_LPF(x) ((x) << 10) /* lines per field */
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#define DIWSIZE_MODULO(x) ((x) << 20) /* words to skip + 1 */
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#define PVRREG_RASEVTPOS 0xcc
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#define RASEVTPOS_BOTTOM(x) ((x) << 0)
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#define RASEVTPOS_TOP(x) ((x) << 16)
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#define PVRREG_SYNCCONF 0xd0
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#define SYNCCONF_VP (1U << 0) /* V-sync polarity */
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#define SYNCCONF_HP (1U << 1) /* H-sync polarity */
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#define SYNCCONF_I (1U << 4) /* interlace */
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#define SYNCCONF_BC(x) (1U << 6) /* broadcast standard */
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#define SYNCCONF_VO (1U << 8) /* video output enable */
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#define PVRREG_BRDHORZ 0xd4
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#define BRDHORZ_STOP(x) ((x) << 0)
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#define BRDHORZ_START(x) ((x) << 16)
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#define PVRREG_SYNCSIZE 0xd8
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#define SYNCSIZE_H(x) ((x) << 0)
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#define SYNCSIZE_V(x) ((x) << 16)
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#define PVRREG_BRDVERT 0xdc
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#define BRDVERT_STOP(x) ((x) << 0)
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#define BRDVERT_START(x) ((x) << 16)
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#define PVRREG_DIWCONF 0xe8
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#define DIWCONF_LR (1U << 8) /* low-res */
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#define DIWCONF_MAGIC (22 << 16)
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#define PVRREG_DIWHSTRT 0xec
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#define PVRREG_DIWVSTRT 0xf0
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#define DIWVSTRT_V1(x) ((x) << 0)
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#define DIWVSTRT_V2(x) ((x) << 16)
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#define PVR_REG_READ(dc, reg) \
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((__volatile uint32_t *)(dc)->dc_regvaddr)[(reg) >> 2]
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#define PVR_REG_WRITE(dc, reg, val) \
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((__volatile uint32_t *)(dc)->dc_regvaddr)[(reg) >> 2] = (val)
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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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vaddr_t dc_regvaddr; /* registers virtual address */
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vaddr_t dc_regpaddr; /* registers 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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int dc_dispflags; /* display flags */
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int dc_tvsystem; /* TV broadcast system */
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struct rasops_info rinfo;
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};
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#define PVR_RGBMODE 0x01 /* RGB or composite */
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#define PVR_VGAMODE 0x02 /* VGA */
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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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CFATTACH_DECL(pvr, sizeof(struct pvr_softc),
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pvr_match, pvr_attach, NULL, NULL);
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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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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 = PVRREG_FBSTART;
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dc->dc_vaddr = SH3_PHYS_TO_P2SEG(dc->dc_paddr);
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dc->dc_regpaddr = PVRREG_REGSTART;
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dc->dc_regvaddr = SH3_PHYS_TO_P2SEG(dc->dc_regpaddr);
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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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dc->dc_dispflags = 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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cookie = wsfont_find(NULL, 8, 0, 0, WSDISPLAY_FONTORDER_L2R,
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WSDISPLAY_FONTORDER_L2R);
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if (cookie <= 0)
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cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_L2R,
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WSDISPLAY_FONTORDER_L2R);
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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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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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static const char *tvsystem_name[4] =
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{ "NTSC", "PAL", "PAL-M", "PAL-N" };
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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, %s, %s\n", sc->sc_dc->dc_wid,
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sc->sc_dc->dc_ht, sc->sc_dc->dc_depth,
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(sc->sc_dc->dc_dispflags & PVR_VGAMODE) ? "VGA" :
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tvsystem_name[sc->sc_dc->dc_tvsystem],
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(sc->sc_dc->dc_dispflags & PVR_RGBMODE) ? "RGB" : "composite");
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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 (EPASSTHROUGH); /* XXX Colormap */
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case WSDISPLAYIO_SVIDEO:
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return (EPASSTHROUGH); /* 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 (EPASSTHROUGH); /* XXX */
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}
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return (EPASSTHROUGH);
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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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struct pvr_softc *sc = v;
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struct fb_devconfig *dc = sc->sc_dc;
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paddr_t addr;
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if (offset >= 0 &&
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offset < sh3_round_page(dc->dc_rowbytes * dc->dc_ht))
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addr = sh3_btop(dc->dc_paddr + offset);
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else
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addr = (-1); /* XXX bogus */
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return addr;
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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.allocattr)(&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(struct fb_devconfig *dc)
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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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dc->dc_dispflags |= PVR_VGAMODE|PVR_RGBMODE;
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else if ((v & 1) == 0)
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dc->dc_dispflags |= PVR_RGBMODE;
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}
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static void
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pvr_check_tvsys(struct fb_devconfig *dc)
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{
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/* XXX should use flashmem device when one exists */
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dc->dc_tvsystem = (*(__volatile u_int8_t *)0xa021a004) & 3;
|
|
}
|
|
|
|
void
|
|
pvrinit(struct fb_devconfig *dc)
|
|
{
|
|
int display_lines_per_field;
|
|
int v_absolute_size;
|
|
int h_absolute_size;
|
|
int vborder_start, vborder_stop;
|
|
int hborder_start, hborder_stop;
|
|
int modulo = 1, voffset, hoffset;
|
|
|
|
pvr_check_cable(dc);
|
|
pvr_check_tvsys(dc);
|
|
|
|
PVR_REG_WRITE(dc, 8, 0); /* reset */
|
|
PVR_REG_WRITE(dc, PVRREG_BRDCOLR, 0); /* black border */
|
|
|
|
if (dc->dc_dispflags & PVR_VGAMODE) {
|
|
v_absolute_size = 524;
|
|
h_absolute_size = 857;
|
|
|
|
display_lines_per_field = 480;
|
|
hoffset = 164;
|
|
voffset = 36;
|
|
|
|
hborder_start = 126;
|
|
hborder_stop = 837;
|
|
|
|
vborder_start = 40;
|
|
vborder_stop = 444; /* XXX */
|
|
|
|
/* 31kHz, RGB565 */
|
|
PVR_REG_WRITE(dc, PVRREG_DIWMODE,
|
|
DIWMODE_C | DIWMODE_COL_RGB565);
|
|
|
|
/* video output */
|
|
PVR_REG_WRITE(dc, PVRREG_SYNCCONF, SYNCCONF_VO);
|
|
} else {
|
|
if (dc->dc_tvsystem & 1) {
|
|
/* 50 Hz PAL */
|
|
v_absolute_size = 624;
|
|
h_absolute_size = 863;
|
|
|
|
display_lines_per_field = 240;
|
|
hoffset = 174;
|
|
voffset = 18;
|
|
|
|
hborder_start = 116;
|
|
hborder_stop = 843;
|
|
|
|
vborder_start = 44;
|
|
vborder_stop = 536; /* XXX */
|
|
} else {
|
|
/* 60 Hz NTSC */
|
|
v_absolute_size = 524;
|
|
h_absolute_size = 857;
|
|
|
|
display_lines_per_field = 240;
|
|
hoffset = 170;
|
|
voffset = 28;
|
|
|
|
hborder_start = 126;
|
|
hborder_stop = 837;
|
|
|
|
vborder_start = 18;
|
|
vborder_stop = 506; /* XXX */
|
|
}
|
|
|
|
modulo += 640 * 2 / 4; /* interlace -> skip every other line */
|
|
|
|
/* 15kHz, RGB565 */
|
|
PVR_REG_WRITE(dc, PVRREG_DIWMODE,
|
|
DIWMODE_COL_RGB565);
|
|
|
|
/* video output, PAL/NTSC, interlace */
|
|
PVR_REG_WRITE(dc, PVRREG_SYNCCONF,
|
|
SYNCCONF_VO | SYNCCONF_I | SYNCCONF_BC(dc->dc_tvsystem));
|
|
}
|
|
|
|
/* video base address, long field */
|
|
PVR_REG_WRITE(dc, PVRREG_DIWADDRL, 0);
|
|
|
|
/* video base address, short field */
|
|
PVR_REG_WRITE(dc, PVRREG_DIWADDRS, 640 * 2);
|
|
|
|
/* video size */
|
|
PVR_REG_WRITE(dc, PVRREG_DIWSIZE, DIWSIZE_MODULO(modulo) |
|
|
DIWSIZE_LPF(display_lines_per_field - 1) |
|
|
DIWSIZE_DPL(640 * 2 / 4 - 1));
|
|
|
|
PVR_REG_WRITE(dc, PVRREG_DIWVSTRT, /* V start */
|
|
DIWVSTRT_V1(voffset) | DIWVSTRT_V2(voffset));
|
|
PVR_REG_WRITE(dc, PVRREG_BRDVERT, /* V border */
|
|
BRDVERT_START(vborder_start) | BRDVERT_STOP(vborder_stop));
|
|
PVR_REG_WRITE(dc, PVRREG_DIWHSTRT, hoffset); /* H start */
|
|
PVR_REG_WRITE(dc, PVRREG_SYNCSIZE, /* HV counter */
|
|
SYNCSIZE_V(v_absolute_size) | SYNCSIZE_H(h_absolute_size));
|
|
PVR_REG_WRITE(dc, PVRREG_BRDHORZ, /* H border */
|
|
BRDHORZ_START(hborder_start) | BRDHORZ_STOP(hborder_stop));
|
|
PVR_REG_WRITE(dc, PVRREG_DIWCONF, DIWCONF_MAGIC);
|
|
|
|
/* RGB / composite */
|
|
*(__volatile u_int32_t *)
|
|
SH3_PHYS_TO_P2SEG(0x00702c00) =
|
|
((dc->dc_dispflags & PVR_RGBMODE) ? 0 : 3) << 8;
|
|
|
|
/* display on */
|
|
PVR_REG_WRITE(dc, PVRREG_DIWMODE,
|
|
PVR_REG_READ(dc, PVRREG_DIWMODE) | DIWMODE_DE);
|
|
}
|
|
|
|
/* Console support. */
|
|
|
|
void pvrcnprobe(struct consdev *);
|
|
void pvrcninit(struct consdev *);
|
|
|
|
void
|
|
pvrcninit(struct consdev *cndev)
|
|
{
|
|
struct fb_devconfig *dcp = &pvr_console_dc;
|
|
long defattr;
|
|
|
|
pvr_getdevconfig(dcp);
|
|
(*dcp->rinfo.ri_ops.allocattr)(&dcp->rinfo, 0, 0, 0, &defattr);
|
|
wsdisplay_cnattach(&pvr_stdscreen, &dcp->rinfo, 0, 0, defattr);
|
|
|
|
pvr_is_console = 1;
|
|
|
|
cn_tab->cn_pri = CN_INTERNAL;
|
|
|
|
#if NMKBD > 0
|
|
mkbd_cnattach(); /* connect keyboard and screen together */
|
|
#endif
|
|
}
|
|
|
|
void
|
|
pvrcnprobe(struct consdev *cndev)
|
|
{
|
|
#if NWSDISPLAY > 0
|
|
int maj, unit;
|
|
extern const struct cdevsw wsdisplay_cdevsw;
|
|
#endif
|
|
cndev->cn_dev = NODEV;
|
|
cndev->cn_pri = CN_NORMAL;
|
|
|
|
#if NWSDISPLAY > 0
|
|
unit = 0;
|
|
maj = cdevsw_lookup_major(&wsdisplay_cdevsw);
|
|
if (maj != -1) {
|
|
cndev->cn_pri = CN_INTERNAL;
|
|
cndev->cn_dev = makedev(maj, unit);
|
|
}
|
|
#endif
|
|
}
|