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/* $OpenBSD: astfb.c,v 1.4 2022/04/06 18:59:27 naddy Exp $ */
/*
* Copyright (c) 2020 Mark Kettenis.
*
* 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 and this permission notice 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.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <machine/fdt.h>
#include <dev/ofw/openfirm.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#define ASTFB_PCI_FB 0x10
struct astfb_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_addr_t sc_fbaddr;
bus_size_t sc_fbsize;
struct rasops_info sc_ri;
struct wsscreen_descr sc_wsd;
struct wsscreen_list sc_wsl;
struct wsscreen_descr *sc_scrlist[1];
};
int astfb_wsioctl(void *, u_long, caddr_t, int, struct proc *);
paddr_t astfb_wsmmap(void *, off_t, int);
int astfb_alloc_screen(void *, const struct wsscreen_descr *,
void **, int *, int *, uint32_t *);
struct wsdisplay_accessops astfb_accessops = {
.ioctl = astfb_wsioctl,
.mmap = astfb_wsmmap,
.alloc_screen = astfb_alloc_screen,
.free_screen = rasops_free_screen,
.show_screen = rasops_show_screen,
.getchar = rasops_getchar,
.load_font = rasops_load_font,
.list_font = rasops_list_font,
.scrollback = rasops_scrollback
};
int astfb_match(struct device *, void *, void *);
void astfb_attach(struct device *, struct device *, void *);
const struct cfattach astfb_ca = {
sizeof(struct astfb_softc), astfb_match, astfb_attach
};
struct cfdriver astfb_cd = {
NULL, "astfb", DV_DULL
};
int
astfb_match(struct device *parent, void *cf, void *aux)
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ASPEED &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ASPEED_AST2000 &&
PCITAG_NODE(pa->pa_tag) != 0)
return 1;
return 0;
}
void
astfb_attach(struct device *parent, struct device *self, void *aux)
{
struct astfb_softc *sc = (struct astfb_softc *)self;
struct pci_attach_args *pa = aux;
struct rasops_info *ri = &sc->sc_ri;
struct wsemuldisplaydev_attach_args waa;
int node = PCITAG_NODE(pa->pa_tag);
uint32_t addr[5];
int console = 0;
uint32_t defattr;
if (OF_getpropintarray(node, "assigned-addresses", addr,
sizeof(addr)) < sizeof(addr)) {
printf(": no framebuffer\n");
return;
}
if (node == stdout_node)
console = 1;
sc->sc_fbaddr = (bus_addr_t)addr[1] << 32 | addr[2];
sc->sc_fbsize = (bus_size_t)addr[3] << 32 | addr[4];
sc->sc_iot = pa->pa_memt;
if (bus_space_map(sc->sc_iot, sc->sc_fbaddr, sc->sc_fbsize,
BUS_SPACE_MAP_LINEAR, &sc->sc_ioh)) {
printf(": can't map framebuffer\n");
return;
}
printf("\n");
ri->ri_bits = bus_space_vaddr(sc->sc_iot, sc->sc_ioh);
ri->ri_hw = sc;
ri->ri_width = OF_getpropint(node, "width", 0);
ri->ri_height = OF_getpropint(node, "height", 0);
ri->ri_depth = OF_getpropint(node, "depth", 0);
ri->ri_stride = ri->ri_width * ((ri->ri_depth + 7) / 8);
ri->ri_flg = RI_CENTER | RI_CLEAR | RI_FULLCLEAR | RI_WRONLY;
switch (ri->ri_depth) {
case 32:
ri->ri_rnum = 8;
ri->ri_rpos = 8;
ri->ri_gnum = 8;
ri->ri_gpos = 16;
ri->ri_bnum = 8;
ri->ri_bpos = 24;
break;
case 16:
ri->ri_rnum = 5;
ri->ri_rpos = 0;
ri->ri_gnum = 6;
ri->ri_gpos = 6;
ri->ri_bnum = 5;
ri->ri_bpos = 11;
break;
}
printf("%s: %dx%d, %dbpp\n", sc->sc_dev.dv_xname,
ri->ri_width, ri->ri_height, ri->ri_depth);
ri->ri_flg |= RI_VCONS;
rasops_init(ri, 160, 160);
strlcpy(sc->sc_wsd.name, "std", sizeof(sc->sc_wsd.name));
sc->sc_wsd.capabilities = ri->ri_caps;
sc->sc_wsd.nrows = ri->ri_rows;
sc->sc_wsd.ncols = ri->ri_cols;
sc->sc_wsd.textops = &ri->ri_ops;
sc->sc_wsd.fontwidth = ri->ri_font->fontwidth;
sc->sc_wsd.fontheight = ri->ri_font->fontheight;
sc->sc_scrlist[0] = &sc->sc_wsd;
sc->sc_wsl.nscreens = 1;
sc->sc_wsl.screens = (const struct wsscreen_descr **)sc->sc_scrlist;
if (console) {
ri->ri_ops.pack_attr(ri->ri_active, 0, 0, 0, &defattr);
wsdisplay_cnattach(&sc->sc_wsd, ri->ri_active,
0, 0, defattr);
}
memset(&waa, 0, sizeof(waa));
waa.scrdata = &sc->sc_wsl;
waa.accessops = &astfb_accessops;
waa.accesscookie = ri;
waa.console = console;
config_found_sm(self, &waa, wsemuldisplaydevprint,
wsemuldisplaydevsubmatch);
}
int
astfb_wsioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct rasops_info *ri = v;
struct wsdisplay_fbinfo *wdf;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_ASTFB;
break;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->width = ri->ri_width;
wdf->height = ri->ri_height;
wdf->depth = ri->ri_depth;
wdf->cmsize = 0; /* color map is unavailable */
break;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = ri->ri_stride;
break;
case WSDISPLAYIO_SMODE:
break;
case WSDISPLAYIO_GETSUPPORTEDDEPTH:
switch (ri->ri_depth) {
case 32:
*(u_int *)data = WSDISPLAYIO_DEPTH_24_32;
break;
case 16:
*(u_int *)data = WSDISPLAYIO_DEPTH_16;
break;
default:
return -1;
}
break;
default:
return -1;
}
return 0;
}
paddr_t
astfb_wsmmap(void *v, off_t off, int prot)
{
struct rasops_info *ri = v;
struct astfb_softc *sc = ri->ri_hw;
if (off < 0 || off >= sc->sc_fbaddr)
return -1;
return (bus_space_mmap(sc->sc_iot, sc->sc_fbaddr,
off, prot, BUS_SPACE_MAP_LINEAR));
}
int
astfb_alloc_screen(void *v, const struct wsscreen_descr *type,
void **cookiep, int *curxp, int *curyp, uint32_t *attrp)
{
return rasops_alloc_screen(v, cookiep, curxp, curyp, attrp);
}
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