NetBSD-5.0.2/sys/arch/prep/pci/gten.c
/* $NetBSD: gten.c,v 1.17 2008/04/28 20:23:33 martin Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas <matt@3am-software.com>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: gten.c,v 1.17 2008/04/28 20:23:33 martin Exp $");
#include <sys/param.h>
#include <sys/buf.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <uvm/uvm_extern.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <machine/bus.h>
#include <machine/gtenvar.h>
static int gten_match(struct device *, struct cfdata *, void *);
static void gten_attach(struct device *, struct device *, void *);
static int gten_print(void *, const char *);
CFATTACH_DECL(gten, sizeof(struct gten_softc),
gten_match, gten_attach, NULL, NULL);
static struct rasops_info gten_console_ri;
static pcitag_t gten_console_pcitag;
static struct wsscreen_descr gten_stdscreen = {
"std",
0, 0,
0,
0, 0,
WSSCREEN_REVERSE
};
static const struct wsscreen_descr *_gten_scrlist[] = {
>en_stdscreen,
/* XXX other formats, graphics screen? */
};
static struct wsscreen_list gten_screenlist = {
sizeof(_gten_scrlist) / sizeof(struct wsscreen_descr *), _gten_scrlist
};
static int gten_ioctl(void *, void *, u_long, void *, int, struct proc *);
static paddr_t gten_mmap(void *, void *, off_t, int);
static int gten_alloc_screen(void *, const struct wsscreen_descr *,
void **, int *, int *, long *);
static void gten_free_screen(void *, void *);
static int gten_show_screen(void *, void *, int,
void (*) (void *, int, int), void *);
static struct wsdisplay_accessops gten_accessops = {
gten_ioctl,
gten_mmap,
gten_alloc_screen,
gten_free_screen,
gten_show_screen,
0 /* load_font */
};
static void gten_common_init(struct rasops_info *);
static int gten_getcmap(struct gten_softc *, struct wsdisplay_cmap *);
static int gten_putcmap(struct gten_softc *, struct wsdisplay_cmap *);
#define GTEN_VRAM_OFFSET 0xf00000
static int
gten_match(struct device *parent, struct cfdata *match, void *aux)
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WD &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_WD_90C)
return 2;
return 0;
}
static void
gten_attach(struct device *parent, struct device *self, void *aux)
{
struct gten_softc *gt = (struct gten_softc *)self;
struct pci_attach_args *pa = aux;
struct wsemuldisplaydev_attach_args a;
int console = (pa->pa_tag == gten_console_pcitag);
int error;
char devinfo[256], pbuf[10];
error = pci_mapreg_info(pa->pa_pc, pa->pa_tag, 0x14,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT,
>->gt_memaddr, >->gt_memsize, NULL);
if (error) {
aprint_error(": can't determine memory size: error=%d\n",
error);
return;
}
if (console) {
gt->gt_ri = >en_console_ri;
gt->gt_nscreens = 1;
} else {
MALLOC(gt->gt_ri, struct rasops_info *, sizeof(*gt->gt_ri),
M_DEVBUF, M_NOWAIT);
if (gt->gt_ri == NULL) {
aprint_error(": can't alloc memory\n");
return;
}
memset(gt->gt_ri, 0, sizeof(*gt->gt_ri));
#if 0
error = pci_mapreg_map(pa, 0x14,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT,
BUS_SPACE_MAP_LINEAR, NULL,
(bus_space_handle_t *) >->gt_ri->ri_bits,
NULL, NULL);
#else
error = bus_space_map(pa->pa_memt, gt->gt_memaddr + GTEN_VRAM_OFFSET,
960*1024, BUS_SPACE_MAP_LINEAR,
(bus_space_handle_t *) >->gt_ri->ri_bits);
#endif
if (error) {
aprint_error(": can't map frame buffer: error=%d\n",
error);
return;
}
gten_common_init(gt->gt_ri);
}
gt->gt_paddr = vtophys((vaddr_t)gt->gt_ri->ri_bits);
if (gt->gt_paddr == 0) {
aprint_error(": cannot map framebuffer\n");
return;
}
gt->gt_psize = gt->gt_memsize - GTEN_VRAM_OFFSET;
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
aprint_normal(": %s\n", devinfo);
format_bytes(pbuf, sizeof(pbuf), gt->gt_psize);
aprint_normal("%s: %s, %dx%d, %dbpp\n", self->dv_xname, pbuf,
gt->gt_ri->ri_width, gt->gt_ri->ri_height,
gt->gt_ri->ri_depth);
#if defined(DEBUG)
aprint_debug("%s: text %dx%d, =+%d+%d\n", self->dv_xname,
gt->gt_ri->ri_cols, gt->gt_ri->ri_rows,
gt->gt_ri->ri_xorigin, gt->gt_ri->ri_yorigin);
{ int i;
struct rasops_info *ri = gt->gt_ri;
for (i = 0; i < 64; i++) {
int j = i * ri->ri_stride;
int k = (ri->ri_height - i - 1) * gt->gt_ri->ri_stride;
memset(ri->ri_bits + j, 0, 64 - i);
memset(ri->ri_bits + j + 64 - i, 255, i);
memset(ri->ri_bits + j + ri->ri_width - 64 + i, 0, 64 - i);
memset(ri->ri_bits + j + ri->ri_width - 64, 255, i);
memset(ri->ri_bits + k, 0, 64 - i);
memset(ri->ri_bits + k + 64 - i, 255, i);
memset(ri->ri_bits + k + ri->ri_width - 64 + i, 0, 64 - i);
memset(ri->ri_bits + k + ri->ri_width - 64, 255, i);
}}
#endif
gt->gt_cmap_red[0] = gt->gt_cmap_green[0] = gt->gt_cmap_blue[0] = 0;
gt->gt_cmap_red[15] = gt->gt_cmap_red[255] = 0xff;
gt->gt_cmap_green[15] = gt->gt_cmap_green[255] = 0xff;
gt->gt_cmap_blue[15] = gt->gt_cmap_blue[255] = 0xff;
a.console = console;
a.scrdata = >en_screenlist;
a.accessops = >en_accessops;
a.accesscookie = gt;
config_found(self, &a, wsemuldisplaydevprint);
}
static void
gten_common_init(struct rasops_info *ri)
{
int32_t addr, width, height, linebytes, depth;
int i, screenbytes;
/* initialize rasops */
ri->ri_width = 640;
ri->ri_height = 480;
ri->ri_depth = 8;
ri->ri_stride = 640;
ri->ri_flg = RI_FORCEMONO | RI_FULLCLEAR;
rasops_init(ri, 30, 80);
/* black on white */
ri->ri_devcmap[0] = 0xffffffff; /* bg */
ri->ri_devcmap[1] = 0; /* fg */
memset(ri->ri_bits, 0xff, ri->ri_stride * ri->ri_height);
gten_stdscreen.nrows = ri->ri_rows;
gten_stdscreen.ncols = ri->ri_cols;
gten_stdscreen.textops = &ri->ri_ops;
gten_stdscreen.capabilities = ri->ri_caps;
}
static int
gten_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
struct proc *p)
{
struct gten_softc *gt = v;
struct wsdisplay_fbinfo *wdf;
struct grfinfo *gm;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_PCIMISC; /* XXX ? */
return 0;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->height = gt->gt_ri->ri_height;
wdf->width = gt->gt_ri->ri_width;
wdf->depth = gt->gt_ri->ri_depth;
wdf->cmsize = 256;
return 0;
case WSDISPLAYIO_GETCMAP:
return gten_getcmap(gt, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return gten_putcmap(gt, (struct wsdisplay_cmap *)data);
}
return EPASSTHROUGH;
}
static paddr_t
gten_mmap(void *v, void *vs, off_t offset, int prot)
{
struct gten_softc *gt = v;
if (offset >= 0 && offset < gt->gt_psize)
return gt->gt_paddr + offset;
if (offset >= 0x1000000 && offset < gt->gt_memsize)
return gt->gt_memaddr + offset - 0x1000000;
return -1;
}
static int
gten_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
int *curxp, int *curyp, long *attrp)
{
struct gten_softc *gt = v;
struct rasops_info *ri = gt->gt_ri;
long defattr;
if (gt->gt_nscreens > 0)
return (ENOMEM);
*cookiep = ri; /* one and only for now */
*curxp = 0;
*curyp = 0;
(*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr);
*attrp = defattr;
gt->gt_nscreens++;
return 0;
}
static void
gten_free_screen(void *v, void *cookie)
{
struct gten_softc *gt = v;
if (gt->gt_ri == >en_console_ri)
panic("gten_free_screen: console");
gt->gt_nscreens--;
}
static int
gten_show_screen(void *v, void *cookie, int waitok,
void (*cb)(void *, int, int), void *cbarg)
{
return (0);
}
int
gten_cnattach(pci_chipset_tag_t pc, bus_space_tag_t memt)
{
struct rasops_info *ri = >en_console_ri;
u_int32_t mapreg, id, mask, mapsize;
long defattr;
pcitag_t tag;
int s, error;
bus_size_t bussize;
bus_addr_t busaddr;
tag = pci_make_tag(pc, 0, 14, 0);
id = pci_conf_read(pc, tag, PCI_ID_REG);
if (PCI_VENDOR(id) != PCI_VENDOR_WD ||
PCI_PRODUCT(id) != PCI_PRODUCT_WD_90C)
return ENXIO;
mapreg = pci_conf_read(pc, tag, 0x14);
if (PCI_MAPREG_TYPE(mapreg) != PCI_MAPREG_TYPE_MEM ||
PCI_MAPREG_MEM_TYPE(mapreg) != PCI_MAPREG_MEM_TYPE_32BIT)
return ENXIO;
s = splhigh();
pci_conf_write(pc, tag, 0x14, 0xffffffff);
mask = pci_conf_read(pc, tag, 0x14);
pci_conf_write(pc, tag, 0x14, mapreg);
splx(s);
bussize = PCI_MAPREG_MEM_SIZE(mask);
busaddr = PCI_MAPREG_MEM_ADDR(mapreg);
error = bus_space_map(memt, busaddr + GTEN_VRAM_OFFSET, 960*1024,
BUS_SPACE_MAP_LINEAR, (bus_space_handle_t *) &ri->ri_bits);
if (error)
return error;
gten_common_init(ri);
(*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr);
wsdisplay_cnattach(>en_stdscreen, ri, 0, 0, defattr);
gten_console_pcitag = tag;
return 0;
}
static int
gten_getcmap(struct gten_softc *gt, struct wsdisplay_cmap *cm)
{
u_int index = cm->index;
u_int count = cm->count;
int error;
if (index >= 256 || count > 256 || index + count > 256)
return EINVAL;
error = copyout(>->gt_cmap_red[index], cm->red, count);
if (error)
return error;
error = copyout(>->gt_cmap_green[index], cm->green, count);
if (error)
return error;
error = copyout(>->gt_cmap_blue[index], cm->blue, count);
if (error)
return error;
return 0;
}
static int
gten_putcmap(struct gten_softc *gt, struct wsdisplay_cmap *cm)
{
int index = cm->index;
int count = cm->count;
int i, error;
u_char rbuf[256], gbuf[256], bbuf[256];
if (cm->index >= 256 || cm->count > 256 ||
(cm->index + cm->count) > 256)
return EINVAL;
error = copyin(cm->red, &rbuf[index], count);
if (error)
return error;
error = copyin(cm->green, &gbuf[index], count);
if (error)
return error;
error = copyin(cm->blue, &bbuf[index], count);
if (error)
return error;
memcpy(>->gt_cmap_red[index], &rbuf[index], count);
memcpy(>->gt_cmap_green[index], &gbuf[index], count);
memcpy(>->gt_cmap_blue[index], &bbuf[index], count);
return 0;
}