File: [local] / sys / arch / vax / vsa / lcspx.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:37 2008 UTC (16 years, 4 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)
|
/* $OpenBSD: lcspx.c,v 1.11 2006/11/29 12:13:54 miod Exp $ */
/*
* Copyright (c) 2006 Miodrag Vallat.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice, this permission notice, and the disclaimer below
* appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Copyright (c) 2004 Blaz Antonic
* All rights reserved.
*
* This software contains code written by Michael L. Hitch.
*
* 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. All advertising materials mentioning features or use of this software
* must display the abovementioned copyrights
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <machine/nexus.h>
#include <machine/vsbus.h>
#include <machine/scb.h>
#include <machine/sid.h>
#include <machine/cpu.h>
#include <uvm/uvm_extern.h>
#include <dev/cons.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <dev/ic/bt463reg.h> /* actually it's a 459 here... */
#define LCSPX_REG_ADDR 0x39302000 /* registers */
#define LCSPX_REG_SIZE 0x2000
#define LCSPX_REG1_ADDR 0x39b00000 /* more registers */
#define LCSPX_RAMDAC_ADDR 0x39b10000 /* RAMDAC */
#define LCSPX_RAMDAC_INTERLEAVE 0x00004000
#define LCSPX_FB_ADDR 0x38000000 /* frame buffer */
#define LCSPX_WIDTH 1280
#define LCSPX_HEIGHT 1024
#define LCSPX_FBSIZE (LCSPX_WIDTH * LCSPX_HEIGHT)
void lcspx_attach(struct device *, struct device *, void *);
int lcspx_vsbus_match(struct device *, void *, void *);
int lcspx_vxtbus_match(struct device *, void *, void *);
struct lcspx_screen {
struct rasops_info ss_ri;
caddr_t ss_addr; /* frame buffer address */
volatile u_int8_t *ss_ramdac[4];
vaddr_t ss_reg;
u_int8_t ss_cmap[256 * 3];
};
#define lcspx_reg_read(ss, reg) \
*(volatile u_int32_t *)((ss)->ss_reg + (reg))
#define lcspx_reg_write(ss, reg, val) \
*(volatile u_int32_t *)((ss)->ss_reg + (reg)) = (val)
/* for console */
struct lcspx_screen lcspx_consscr;
struct lcspx_softc {
struct device sc_dev;
struct lcspx_screen *sc_scr;
int sc_nscreens;
};
struct cfattach lcspx_vsbus_ca = {
sizeof(struct lcspx_softc), lcspx_vsbus_match, lcspx_attach,
};
struct cfattach lcspx_vxtbus_ca = {
sizeof(struct lcspx_softc), lcspx_vxtbus_match, lcspx_attach,
};
struct cfdriver lcspx_cd = {
NULL, "lcspx", DV_DULL
};
struct wsscreen_descr lcspx_stdscreen = {
"std",
};
const struct wsscreen_descr *_lcspx_scrlist[] = {
&lcspx_stdscreen,
};
const struct wsscreen_list lcspx_screenlist = {
sizeof(_lcspx_scrlist) / sizeof(struct wsscreen_descr *),
_lcspx_scrlist,
};
int lcspx_ioctl(void *, u_long, caddr_t, int, struct proc *);
paddr_t lcspx_mmap(void *, off_t, int);
int lcspx_alloc_screen(void *, const struct wsscreen_descr *,
void **, int *, int *, long *);
void lcspx_free_screen(void *, void *);
int lcspx_show_screen(void *, void *, int,
void (*) (void *, int, int), void *);
const struct wsdisplay_accessops lcspx_accessops = {
lcspx_ioctl,
lcspx_mmap,
lcspx_alloc_screen,
lcspx_free_screen,
lcspx_show_screen,
NULL, /* load_font */
NULL, /* scrollback */
NULL, /* getchar */
NULL /* burner */
};
int lcspx_getcmap(struct lcspx_screen *, struct wsdisplay_cmap *);
void lcspx_loadcmap(struct lcspx_screen *, int, int);
int lcspx_putcmap(struct lcspx_screen *, struct wsdisplay_cmap *);
static __inline__
void lcspx_ramdac_wraddr(struct lcspx_screen *, u_int);
void lcspx_resetcmap(struct lcspx_screen *);
int lcspx_setup_screen(struct lcspx_screen *);
int
lcspx_vsbus_match(struct device *parent, void *vcf, void *aux)
{
struct vsbus_softc *sc = (void *)parent;
struct vsbus_attach_args *va = aux;
switch (vax_boardtype) {
default:
return (0);
case VAX_BTYP_49:
if (va->va_paddr != LCSPX_REG_ADDR)
return (0);
if ((vax_confdata & 0x12) != 0x02)
return (0);
break;
}
sc->sc_mask = 0x04; /* XXX - should be generated */
scb_fake(0x120, 0x15);
return (20);
}
int
lcspx_vxtbus_match(struct device *parent, void *vcf, void *aux)
{
struct bp_conf *bp = aux;
int missing;
volatile u_int8_t *ch;
if (strcmp(bp->type, lcspx_cd.cd_name) != 0)
return (0);
/*
* Check for video memory at SPX address.
*/
missing = 0;
ch = (volatile u_int8_t *)vax_map_physmem(LCSPX_FB_ADDR, 1);
*ch = 0x01;
if ((*ch & 0x01) == 0)
missing = 1;
else {
*ch = 0x00;
if ((*ch & 0x01) != 0)
missing = 1;
}
vax_unmap_physmem((vaddr_t)ch, 1);
return (missing ? 0 : 1);
}
void
lcspx_attach(struct device *parent, struct device *self, void *aux)
{
struct lcspx_softc *sc = (struct lcspx_softc *)self;
struct lcspx_screen *ss;
struct wsemuldisplaydev_attach_args aa;
int i, console;
extern struct consdev wsdisplay_cons;
if (cn_tab == &wsdisplay_cons) {
if (vax_boardtype == VAX_BTYP_49)
console = (vax_confdata & 8) == 0;
else /* VXT2000 */
console = (vax_confdata & 2) != 0;
} else
console = 0;
if (console) {
ss = &lcspx_consscr;
sc->sc_nscreens = 1;
} else {
ss = malloc(sizeof(struct lcspx_screen), M_DEVBUF, M_NOWAIT);
if (ss == NULL) {
printf(": can not allocate memory\n");
return;
}
bzero(ss, sizeof(struct lcspx_screen));
ss->ss_addr = (caddr_t)vax_map_physmem(LCSPX_FB_ADDR,
LCSPX_FBSIZE / VAX_NBPG);
if (ss->ss_addr == NULL) {
printf(": can not map frame buffer\n");
goto fail1;
}
ss->ss_reg = vax_map_physmem(LCSPX_REG_ADDR,
LCSPX_REG_SIZE / VAX_NBPG);
if (ss->ss_reg == 0L) {
printf(": can not map registers\n");
goto fail2;
}
for (i = 0; i < 4; i++) {
ss->ss_ramdac[i] = (volatile u_int8_t *)vax_map_physmem(
LCSPX_RAMDAC_ADDR + i * LCSPX_RAMDAC_INTERLEAVE, 1);
if (ss->ss_ramdac[i] == NULL) {
printf(": can not map RAMDAC registers\n");
goto fail3;
}
}
if (lcspx_setup_screen(ss) != 0) {
printf(": initialization failed\n");
goto fail3;
}
}
sc->sc_scr = ss;
printf("\n%s: 1280x1024x8 frame buffer\n", self->dv_xname);
aa.console = console;
aa.scrdata = &lcspx_screenlist;
aa.accessops = &lcspx_accessops;
aa.accesscookie = sc;
aa.defaultscreens = 0;
config_found(self, &aa, wsemuldisplaydevprint);
return;
fail3:
for (i = 0; i < 4; i++)
if (ss->ss_ramdac[i] != NULL)
vax_unmap_physmem((vaddr_t)ss->ss_ramdac[i], 1);
vax_unmap_physmem(ss->ss_reg, LCSPX_REG_SIZE / VAX_NBPG);
fail2:
vax_unmap_physmem((vaddr_t)ss->ss_addr, LCSPX_FBSIZE / VAX_NBPG);
fail1:
free(ss, M_DEVBUF);
}
static __inline__ void
lcspx_ramdac_wraddr(struct lcspx_screen *ss, u_int addr)
{
*(ss->ss_ramdac[BT463_REG_ADDR_LOW]) = addr & 0xff;
*(ss->ss_ramdac[BT463_REG_ADDR_HIGH]) = (addr >> 8) & 0xff;
}
/*
* Initialize anything necessary for an emulating wsdisplay to work (i.e.
* pick a font, initialize a rasops structure, setup the accessops callbacks.)
*/
int
lcspx_setup_screen(struct lcspx_screen *ss)
{
struct rasops_info *ri = &ss->ss_ri;
bzero(ri, sizeof(*ri));
ri->ri_depth = 8;
ri->ri_width = LCSPX_WIDTH;
ri->ri_height = LCSPX_HEIGHT;
ri->ri_stride = LCSPX_WIDTH;
ri->ri_flg = RI_CLEAR | RI_CENTER;
ri->ri_bits = (void *)ss->ss_addr;
ri->ri_hw = ss;
/*
* Enable all planes for reading and writing
*/
lcspx_reg_write(ss, 0x1170, 0xffffffff);
lcspx_reg_write(ss, 0x1174, 0xffffffff);
lcspx_ramdac_wraddr(ss, 0x0204); /* plane mask */
*(ss->ss_ramdac[BT463_REG_IREG_DATA]) = 0xff;
/*
* Ask for an unholy big display, rasops will trim this to more
* reasonable values.
*/
if (rasops_init(ri, 160, 160) != 0)
return (-1);
lcspx_resetcmap(ss);
lcspx_stdscreen.ncols = ri->ri_cols;
lcspx_stdscreen.nrows = ri->ri_rows;
lcspx_stdscreen.textops = &ri->ri_ops;
lcspx_stdscreen.fontwidth = ri->ri_font->fontwidth;
lcspx_stdscreen.fontheight = ri->ri_font->fontheight;
lcspx_stdscreen.capabilities = ri->ri_caps;
return (0);
}
int
lcspx_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
{
struct lcspx_softc *sc = v;
struct lcspx_screen *ss = sc->sc_scr;
struct wsdisplay_fbinfo *wdf;
struct wsdisplay_cmap *cm;
int error;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_LCSPX;
break;
case WSDISPLAYIO_GINFO:
wdf = (struct wsdisplay_fbinfo *)data;
wdf->height = LCSPX_HEIGHT;
wdf->width = LCSPX_WIDTH;
wdf->depth = 8;
wdf->cmsize = 256;
break;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = ss->ss_ri.ri_stride;
break;
case WSDISPLAYIO_GETCMAP:
cm = (struct wsdisplay_cmap *)data;
error = lcspx_getcmap(ss, cm);
if (error != 0)
return (error);
break;
case WSDISPLAYIO_PUTCMAP:
cm = (struct wsdisplay_cmap *)data;
error = lcspx_putcmap(ss, cm);
if (error != 0)
return (error);
lcspx_loadcmap(ss, cm->index, cm->count);
break;
case WSDISPLAYIO_GVIDEO:
case WSDISPLAYIO_SVIDEO:
break;
default:
return (-1);
}
return (0);
}
paddr_t
lcspx_mmap(void *v, off_t offset, int prot)
{
if (offset >= LCSPX_FBSIZE || offset < 0)
return (-1);
return (LCSPX_FB_ADDR + offset) >> PGSHIFT;
}
int
lcspx_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
int *curxp, int *curyp, long *defattrp)
{
struct lcspx_softc *sc = v;
struct lcspx_screen *ss = sc->sc_scr;
struct rasops_info *ri = &ss->ss_ri;
if (sc->sc_nscreens > 0)
return (ENOMEM);
*cookiep = ri;
*curxp = *curyp = 0;
ri->ri_ops.alloc_attr(ri, 0, 0, 0, defattrp);
sc->sc_nscreens++;
return (0);
}
void
lcspx_free_screen(void *v, void *cookie)
{
struct lcspx_softc *sc = v;
sc->sc_nscreens--;
}
int
lcspx_show_screen(void *v, void *cookie, int waitok,
void (*cb)(void *, int, int), void *cbarg)
{
return (0);
}
/*
* Colormap handling routines
*/
int
lcspx_getcmap(struct lcspx_screen *ss, struct wsdisplay_cmap *cm)
{
u_int index = cm->index, count = cm->count, i;
int error;
u_int8_t ramp[256], *c, *r;
if (index >= 256 || count > 256 - index)
return (EINVAL);
/* extract reds */
c = ss->ss_cmap + 0 + index * 3;
for (i = count, r = ramp; i != 0; i--)
*r++ = *c, c += 3;
if ((error = copyout(ramp, cm->red, count)) != 0)
return (error);
/* extract greens */
c = ss->ss_cmap + 1 + index * 3;
for (i = count, r = ramp; i != 0; i--)
*r++ = *c, c += 3;
if ((error = copyout(ramp, cm->green, count)) != 0)
return (error);
/* extract blues */
c = ss->ss_cmap + 2 + index * 3;
for (i = count, r = ramp; i != 0; i--)
*r++ = *c, c += 3;
if ((error = copyout(ramp, cm->blue, count)) != 0)
return (error);
return (0);
}
int
lcspx_putcmap(struct lcspx_screen *ss, struct wsdisplay_cmap *cm)
{
u_int index = cm->index, count = cm->count;
int i, error;
u_int8_t r[256], g[256], b[256], *nr, *ng, *nb, *c;
if (index >= 256 || count > 256 - index)
return (EINVAL);
if ((error = copyin(cm->red, r, count)) != 0)
return (error);
if ((error = copyin(cm->green, g, count)) != 0)
return (error);
if ((error = copyin(cm->blue, b, count)) != 0)
return (error);
nr = r, ng = g, nb = b;
c = ss->ss_cmap + index * 3;
for (i = count; i != 0; i--) {
*c++ = *nr++;
*c++ = *ng++;
*c++ = *nb++;
}
return (0);
}
void
lcspx_loadcmap(struct lcspx_screen *ss, int from, int count)
{
u_int8_t *cmap = ss->ss_cmap;
int i;
cmap += from * 3;
for (i = from; i < from + count; i++) {
/*
* Reprogram the index every iteration, because the RAMDAC
* may not be in autoincrement mode. XXX fix this
*/
lcspx_ramdac_wraddr(ss, i);
*(ss->ss_ramdac[BT463_REG_CMAP_DATA]) = *cmap++;
*(ss->ss_ramdac[BT463_REG_CMAP_DATA]) = *cmap++;
*(ss->ss_ramdac[BT463_REG_CMAP_DATA]) = *cmap++;
}
}
void
lcspx_resetcmap(struct lcspx_screen *ss)
{
bcopy(rasops_cmap, ss->ss_cmap, sizeof(ss->ss_cmap));
lcspx_loadcmap(ss, 0, 256);
}
/*
* Console support code
*/
int lcspxcnprobe(void);
void lcspxcninit(void);
int
lcspxcnprobe()
{
extern vaddr_t virtual_avail;
volatile u_int8_t *ch;
switch (vax_boardtype) {
case VAX_BTYP_49:
if ((vax_confdata & 8) != 0)
break; /* doesn't use graphics console */
if ((vax_confdata & 0x12) != 0x02)
return (0);
return (1);
case VAX_BTYP_VXT:
if ((vax_confdata & 2) == 0)
break; /* doesn't use graphics console */
/*
* Check for video memory at SPX address.
*/
ioaccess(virtual_avail, LCSPX_FB_ADDR, 1);
ch = (volatile u_int8_t *)virtual_avail;
*ch = 0x01;
if ((*ch & 0x01) == 0)
break;
*ch = 0x00;
if ((*ch & 0x01) != 0)
break;
return (1);
default:
break;
}
return (0);
}
/*
* Called very early to setup the glass tty as console.
* Because it's called before the VM system is initialized, virtual memory
* for the framebuffer can be stolen directly without disturbing anything.
*/
void
lcspxcninit()
{
struct lcspx_screen *ss = &lcspx_consscr;
extern vaddr_t virtual_avail;
int i;
long defattr;
struct rasops_info *ri;
ss->ss_addr = (caddr_t)virtual_avail;
virtual_avail += LCSPX_FBSIZE;
ioaccess((vaddr_t)ss->ss_addr, LCSPX_FB_ADDR, LCSPX_FBSIZE / VAX_NBPG);
ss->ss_reg = virtual_avail;
virtual_avail += LCSPX_REG_SIZE;
ioaccess(ss->ss_reg, LCSPX_REG_ADDR, LCSPX_REG_SIZE / VAX_NBPG);
for (i = 0; i < 4; i++) {
ss->ss_ramdac[i] = (volatile u_int8_t *)virtual_avail;
virtual_avail += VAX_NBPG;
ioaccess((vaddr_t)ss->ss_ramdac[i],
LCSPX_RAMDAC_ADDR + i * LCSPX_RAMDAC_INTERLEAVE, 1);
}
virtual_avail = round_page(virtual_avail);
/* this had better not fail as we can't recover there */
if (lcspx_setup_screen(ss) != 0)
panic(__func__);
ri = &ss->ss_ri;
ri->ri_ops.alloc_attr(ri, 0, 0, 0, &defattr);
wsdisplay_cnattach(&lcspx_stdscreen, ri, 0, 0, defattr);
}