File: [local] / sys / arch / sparc / dev / cgfour.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:02 2008 UTC (16 years, 6 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
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/* $OpenBSD: cgfour.c,v 1.27 2006/12/03 16:38:12 miod Exp $ */
/* $NetBSD: cgfour.c,v 1.13 1997/05/24 20:16:06 pk Exp $ */
/*
* Coyrpight (c) 2002 Miodrag Vallat. All rights reserved.
* Copyright (c) 1996 Jason R. Thorpe. All rights reserved.
* Copyright (c) 1995 Theo de Raadt. All rights reserved.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from @(#)cgthree.c 8.2 (Berkeley) 10/30/93
*/
/*
* color display (cgfour) driver.
*
* Does not handle interrupts, even though they can occur.
*
* XXX should defer colormap updates to vertical retrace interrupts
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/tty.h>
#include <sys/conf.h>
#include <uvm/uvm_extern.h> /* NBPG */
#include <machine/autoconf.h>
#include <machine/pmap.h>
#include <machine/eeprom.h>
#include <machine/conf.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <machine/fbvar.h>
#include <sparc/dev/btreg.h>
#include <sparc/dev/btvar.h>
#include <sparc/dev/pfourreg.h>
/* per-display variables */
struct cgfour_softc {
struct sunfb sc_sunfb; /* common base part */
struct rom_reg sc_phys; /* display RAM (phys addr) */
volatile struct fbcontrol *sc_fbc; /* Brooktree registers */
union bt_cmap sc_cmap; /* Brooktree color map */
};
int cgfour_ioctl(void *, u_long, caddr_t, int, struct proc *);
paddr_t cgfour_mmap(void *, off_t, int);
void cgfour_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
struct wsdisplay_accessops cgfour_accessops = {
cgfour_ioctl,
cgfour_mmap,
NULL, /* alloc_screen */
NULL, /* free_screen */
NULL, /* show_screen */
NULL, /* load_font */
NULL, /* scrollback */
NULL, /* getchar */
fb_pfour_burner,
NULL /* pollc */
};
void cgfourattach(struct device *, struct device *, void *);
int cgfourmatch(struct device *, void *, void *);
struct cfattach cgfour_ca = {
sizeof(struct cgfour_softc), cgfourmatch, cgfourattach
};
struct cfdriver cgfour_cd = {
NULL, "cgfour", DV_DULL
};
int
cgfourmatch(struct device *parent, void *vcf, void *aux)
{
struct cfdata *cf = vcf;
struct confargs *ca = aux;
struct romaux *ra = &ca->ca_ra;
if (strcmp(cf->cf_driver->cd_name, ra->ra_name))
return (0);
if (!CPU_ISSUN4 || ca->ca_bustype != BUS_OBIO)
return (0);
if (probeget(ra->ra_vaddr, 4) == -1)
return (0);
/*
* Check the pfour register.
*/
if (fb_pfour_id(ra->ra_vaddr) == PFOUR_ID_COLOR8P1)
return (1);
return (0);
}
void
cgfourattach(struct device *parent, struct device *self, void *args)
{
struct cgfour_softc *sc = (struct cgfour_softc *)self;
struct confargs *ca = args;
int node = 0;
volatile struct bt_regs *bt;
int isconsole = 0;
printf(": p4");
/* Map the pfour register. */
SET(sc->sc_sunfb.sf_flags, FB_PFOUR);
sc->sc_sunfb.sf_pfour = (volatile u_int32_t *)
mapiodev(ca->ca_ra.ra_reg, 0, sizeof(u_int32_t));
if (cputyp == CPU_SUN4) {
struct eeprom *eep = (struct eeprom *)eeprom_va;
/*
* Assume this is the console if there's no eeprom info
* to be found.
*/
if (eep == NULL || eep->eeConsole == EE_CONS_P4OPT)
isconsole = 1;
}
/*
* When the ROM has mapped in a cgfour display, the address
* maps only the video RAM, so in any case we have to map the
* registers ourselves. We only need the video RAM if we are
* going to print characters via rconsole.
*/
sc->sc_phys = ca->ca_ra.ra_reg[0];
/* enable video */
fb_pfour_burner(sc, 1, 0);
bt = &sc->sc_fbc->fbc_dac;
BT_INIT(bt, 24);
/*
* XXX should initialize the enable plane, instead of expecting the
* PROM to do so for us
*/
fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, ca->ca_bustype);
/*
* XXX this only maps the color plane, not the overlay or the enable
* planes
*/
sc->sc_sunfb.sf_ro.ri_bits = mapiodev(ca->ca_ra.ra_reg,
PFOUR_COLOR_OFF_COLOR, round_page(sc->sc_sunfb.sf_fbsize));
sc->sc_sunfb.sf_ro.ri_hw = sc;
fbwscons_init(&sc->sc_sunfb, isconsole ? 0 : RI_CLEAR);
fbwscons_setcolormap(&sc->sc_sunfb, cgfour_setcolor);
printf(", %dx%d\n", sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height);
if (isconsole) {
fbwscons_console_init(&sc->sc_sunfb, -1);
}
fbwscons_attach(&sc->sc_sunfb, &cgfour_accessops, isconsole);
}
int
cgfour_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct cgfour_softc *sc = v;
struct wsdisplay_fbinfo *wdf;
struct wsdisplay_cmap *cm;
int error;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_SUNCG4;
break;
case WSDISPLAYIO_GINFO:
wdf = (struct wsdisplay_fbinfo *)data;
wdf->height = sc->sc_sunfb.sf_height;
wdf->width = sc->sc_sunfb.sf_width;
wdf->depth = sc->sc_sunfb.sf_depth;
wdf->cmsize = 256;
break;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = sc->sc_sunfb.sf_linebytes;
break;
case WSDISPLAYIO_GETCMAP:
cm = (struct wsdisplay_cmap *)data;
error = bt_getcmap(&sc->sc_cmap, cm);
if (error)
return (error);
break;
case WSDISPLAYIO_PUTCMAP:
cm = (struct wsdisplay_cmap *)data;
error = bt_putcmap(&sc->sc_cmap, cm);
if (error)
return (error);
bt_loadcmap(&sc->sc_cmap, &sc->sc_fbc->fbc_dac,
cm->index, cm->count, 1);
break;
case WSDISPLAYIO_SVIDEO:
case WSDISPLAYIO_GVIDEO:
break;
case WSDISPLAYIO_GCURPOS:
case WSDISPLAYIO_SCURPOS:
case WSDISPLAYIO_GCURMAX:
case WSDISPLAYIO_GCURSOR:
case WSDISPLAYIO_SCURSOR:
default:
return (-1); /* not supported yet */
}
return (0);
}
paddr_t
cgfour_mmap(void *v, off_t offset, int prot)
{
struct cgfour_softc *sc = v;
if (offset & PGOFSET)
return (-1);
if (offset >= 0 && offset < sc->sc_sunfb.sf_fbsize) {
return (REG2PHYS(&sc->sc_phys,
PFOUR_COLOR_OFF_COLOR + offset) | PMAP_NC);
}
return (-1);
}
void
cgfour_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
{
struct cgfour_softc *sc = v;
bt_setcolor(&sc->sc_cmap, &sc->sc_fbc->fbc_dac, index, r, g, b, 1);
}