void
tcx_prom(void *v)
{
struct tcx_softc *sc = v;
extern struct consdev consdev_prom;
if (sc->sc_sunfb.sf_depth != 8) {
/*
* Select 8-bit mode.
*/
tcx_reset(sc, 8);
/*
* Go back to prom output for the last few messages, so they
* will be displayed correctly.
*/
cn_tab = &consdev_prom;
}
}
static int tcx_probe(struct platform_device *op)
{
struct device_node *dp = op->dev.of_node;
struct fb_info *info;
struct tcx_par *par;
int linebytes, i, err;
info = framebuffer_alloc(sizeof(struct tcx_par), &op->dev);
err = -ENOMEM;
if (!info)
goto out_err;
par = info->par;
spin_lock_init(&par->lock);
par->lowdepth =
(of_find_property(dp, "tcx-8-bit", NULL) != NULL);
sbusfb_fill_var(&info->var, dp, 8);
info->var.red.length = 8;
info->var.green.length = 8;
info->var.blue.length = 8;
linebytes = of_getintprop_default(dp, "linebytes",
info->var.xres);
info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
par->tec = of_ioremap(&op->resource[7], 0,
sizeof(struct tcx_tec), "tcx tec");
par->thc = of_ioremap(&op->resource[9], 0,
sizeof(struct tcx_thc), "tcx thc");
par->bt = of_ioremap(&op->resource[8], 0,
sizeof(struct bt_regs), "tcx dac");
info->screen_base = of_ioremap(&op->resource[0], 0,
info->fix.smem_len, "tcx ram");
if (!par->tec || !par->thc ||
!par->bt || !info->screen_base)
goto out_unmap_regs;
memcpy(&par->mmap_map, &__tcx_mmap_map, sizeof(par->mmap_map));
if (!par->lowdepth) {
par->cplane = of_ioremap(&op->resource[4], 0,
info->fix.smem_len * sizeof(u32),
"tcx cplane");
if (!par->cplane)
goto out_unmap_regs;
} else {
par->mmap_map[1].size = SBUS_MMAP_EMPTY;
par->mmap_map[4].size = SBUS_MMAP_EMPTY;
par->mmap_map[5].size = SBUS_MMAP_EMPTY;
par->mmap_map[6].size = SBUS_MMAP_EMPTY;
}
info->fix.smem_start = op->resource[0].start;
par->which_io = op->resource[0].flags & IORESOURCE_BITS;
for (i = 0; i < TCX_MMAP_ENTRIES; i++) {
int j;
switch (i) {
case 10:
j = 12;
break;
case 11: case 12:
j = i - 1;
break;
default:
j = i;
break;
}
par->mmap_map[i].poff = op->resource[j].start;
}
info->flags = FBINFO_DEFAULT;
info->fbops = &tcx_ops;
/* Initialize brooktree DAC. */
sbus_writel(0x04 << 24, &par->bt->addr); /* color planes */
sbus_writel(0xff << 24, &par->bt->control);
sbus_writel(0x05 << 24, &par->bt->addr);
sbus_writel(0x00 << 24, &par->bt->control);
sbus_writel(0x06 << 24, &par->bt->addr); /* overlay plane */
sbus_writel(0x73 << 24, &par->bt->control);
sbus_writel(0x07 << 24, &par->bt->addr);
sbus_writel(0x00 << 24, &par->bt->control);
tcx_reset(info);
tcx_blank(FB_BLANK_UNBLANK, info);
if (fb_alloc_cmap(&info->cmap, 256, 0))
goto out_unmap_regs;
fb_set_cmap(&info->cmap, info);
tcx_init_fix(info, linebytes);
err = register_framebuffer(info);
if (err < 0)
goto out_dealloc_cmap;
dev_set_drvdata(&op->dev, info);
printk(KERN_INFO "%s: TCX at %lx:%lx, %s\n",
dp->full_name,
par->which_io,
info->fix.smem_start,
par->lowdepth ? "8-bit only" : "24-bit depth");
return 0;
out_dealloc_cmap:
fb_dealloc_cmap(&info->cmap);
out_unmap_regs:
tcx_unmap_regs(op, info, par);
framebuffer_release(info);
out_err:
return err;
}
static int tcx_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
{
tcx_reset(info);
return 0;
}
int
tcx_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct tcx_softc *sc = dev;
struct wsdisplay_cmap *cm;
struct wsdisplay_fbinfo *wdf;
int error;
/*
* Note that, although the emulation (text) mode is running in 8-bit
* mode, if the frame buffer is able to run in 24-bit mode, it will
* be advertized as such.
*/
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_SUNTCX;
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 = sc->sc_cplane == 0 ? 256 : 0;
break;
case WSDISPLAYIO_GETSUPPORTEDDEPTH:
if (sc->sc_cplane != 0)
*(u_int *)data = WSDISPLAYIO_DEPTH_24_32;
else
return (-1);
break;
case WSDISPLAYIO_LINEBYTES:
if (sc->sc_cplane == 0)
*(u_int *)data = sc->sc_sunfb.sf_linebytes;
else
*(u_int *)data = sc->sc_sunfb.sf_linebytes * 4;
break;
case WSDISPLAYIO_GETCMAP:
if (sc->sc_cplane == 0) {
cm = (struct wsdisplay_cmap *)data;
error = bt_getcmap(&sc->sc_cmap, cm);
if (error)
return (error);
}
break;
case WSDISPLAYIO_PUTCMAP:
if (sc->sc_cplane == 0) {
cm = (struct wsdisplay_cmap *)data;
error = bt_putcmap(&sc->sc_cmap, cm);
if (error)
return (error);
tcx_loadcmap_deferred(sc, cm->index, cm->count);
}
break;
case WSDISPLAYIO_SMODE:
if (*(int *)data == WSDISPLAYIO_MODE_EMUL) {
/* Back from X11 to text mode */
tcx_reset(sc, 8);
} else {
/* Starting X11, try to switch to 24 bit mode */
if (sc->sc_cplane != 0)
tcx_reset(sc, 32);
}
break;
case WSDISPLAYIO_SVIDEO:
case WSDISPLAYIO_GVIDEO:
break;
default:
return (-1); /* not supported yet */
}
return (0);
}
void
tcxattach(struct device *parent, struct device *self, void *args)
{
struct tcx_softc *sc = (struct tcx_softc *)self;
struct confargs *ca = args;
int node, pri;
int isconsole = 0;
char *nam = NULL;
vaddr_t thc_offset;
pri = ca->ca_ra.ra_intr[0].int_pri;
printf(" pri %d: ", pri);
node = ca->ca_ra.ra_node;
isconsole = node == fbnode;
if (ca->ca_ra.ra_nreg < TCX_NREG) {
printf("expected %d registers, got %d\n",
TCX_NREG, ca->ca_ra.ra_nreg);
return;
}
nam = getpropstring(node, "model");
if (*nam != '\0')
printf("%s, ", nam);
/*
* Copy the register address spaces needed for mmap operation.
*/
sc->sc_phys[0] = ca->ca_ra.ra_reg[TCX_REG_DFB8];
sc->sc_phys[1] = ca->ca_ra.ra_reg[TCX_REG_DFB24];
/*
* Can't trust the PROM range len here, it is only 4 bytes on the
* 8-bit model. Not that it matters much anyway since we map in
* pages.
*/
sc->sc_bt = (volatile struct bt_regs *)
mapiodev(&ca->ca_ra.ra_reg[TCX_REG_CMAP], 0, sizeof *sc->sc_bt);
/*
* For some reason S24 PROM sets up TEC and THC ranges at the
* right addresses (701000 and 301000), while 8 bit TCX doesn't
* (and uses 70000 and 30000) - be sure to only compensate on 8 bit
* models.
*/
if (((vaddr_t)ca->ca_ra.ra_reg[TCX_REG_THC].rr_paddr & 0x1000) != 0)
thc_offset = 0;
else
thc_offset = 0x1000;
sc->sc_thc = (volatile struct tcx_thc *)
mapiodev(&ca->ca_ra.ra_reg[TCX_REG_THC],
thc_offset, sizeof *sc->sc_thc);
/*
* Find out frame buffer geometry, so that we know how much
* memory to map.
*/
fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, ca->ca_bustype);
sc->sc_dfb8 = mapiodev(&ca->ca_ra.ra_reg[TCX_REG_DFB8], 0,
round_page(sc->sc_sunfb.sf_fbsize));
/*
* If the frame buffer advertizes itself as the 8 bit model, or
* if the PROM ranges are too small, limit ourselves to 8 bit
* operations.
*
* Further code needing to know which capabilities the frame buffer
* has will rely on sc_cplane being non-zero if 24 bit operation
* is possible.
*/
if (!node_has_property(node, "tcx-8-bit") &&
ca->ca_ra.ra_reg[TCX_REG_RDFB32].rr_len >=
sc->sc_sunfb.sf_fbsize * 4) {
sc->sc_cplane =
(paddr_t)ca->ca_ra.ra_reg[TCX_REG_RDFB32].rr_paddr;
}
printf("%dx%dx%d\n",
sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height,
sc->sc_cplane == 0 ? 8 : 24);
/*
* Set up mappings for the acceleration code. This may fail.
*/
tcx_accel_init(sc, ca);
/* reset cursor & frame buffer controls */
tcx_reset(sc, 8);
/* enable video */
tcx_burner(sc, 1, 0);
sc->sc_sunfb.sf_ro.ri_hw = sc;
sc->sc_sunfb.sf_ro.ri_bits = (void *)sc->sc_dfb8;
fbwscons_init(&sc->sc_sunfb, isconsole);
fbwscons_setcolormap(&sc->sc_sunfb, tcx_setcolor);
/*
* Now plug accelerated console routines, if possible.
*/
tcx_accel_plug(sc, ca);
sc->sc_ih.ih_fun = tcx_intr;
sc->sc_ih.ih_arg = sc;
intr_establish(pri, &sc->sc_ih, IPL_FB, self->dv_xname);
if (isconsole) {
fbwscons_console_init(&sc->sc_sunfb, -1);
shutdownhook_establish(tcx_prom, sc);
}
fbwscons_attach(&sc->sc_sunfb, &tcx_accessops, isconsole);
}
void tcx_init(target_phys_addr_t addr, int vram_size, int width, int height,
int depth)
{
TCXState *s;
int io_memory, dummy_memory;
ram_addr_t vram_offset;
int size;
uint8_t *vram_base;
vram_offset = qemu_ram_alloc(vram_size * (1 + 4 + 4));
vram_base = qemu_get_ram_ptr(vram_offset);
s = qemu_mallocz(sizeof(TCXState));
s->addr = addr;
s->vram_offset = vram_offset;
s->width = width;
s->height = height;
s->depth = depth;
// 8-bit plane
s->vram = vram_base;
size = vram_size;
cpu_register_physical_memory(addr + 0x00800000ULL, size, vram_offset);
vram_offset += size;
vram_base += size;
io_memory = cpu_register_io_memory(0, tcx_dac_read, tcx_dac_write, s);
cpu_register_physical_memory(addr + 0x00200000ULL, TCX_DAC_NREGS,
io_memory);
dummy_memory = cpu_register_io_memory(0, tcx_dummy_read, tcx_dummy_write,
s);
cpu_register_physical_memory(addr + 0x00700000ULL, TCX_TEC_NREGS,
dummy_memory);
if (depth == 24) {
// 24-bit plane
size = vram_size * 4;
s->vram24 = (uint32_t *)vram_base;
s->vram24_offset = vram_offset;
cpu_register_physical_memory(addr + 0x02000000ULL, size, vram_offset);
vram_offset += size;
vram_base += size;
// Control plane
size = vram_size * 4;
s->cplane = (uint32_t *)vram_base;
s->cplane_offset = vram_offset;
cpu_register_physical_memory(addr + 0x0a000000ULL, size, vram_offset);
s->ds = graphic_console_init(tcx24_update_display,
tcx24_invalidate_display,
tcx24_screen_dump, NULL, s);
} else {
cpu_register_physical_memory(addr + 0x00300000ULL, TCX_THC_NREGS_8,
dummy_memory);
s->ds = graphic_console_init(tcx_update_display,
tcx_invalidate_display,
tcx_screen_dump, NULL, s);
}
// NetBSD writes here even with 8-bit display
cpu_register_physical_memory(addr + 0x00301000ULL, TCX_THC_NREGS_24,
dummy_memory);
register_savevm("tcx", addr, 4, tcx_save, tcx_load, s);
qemu_register_reset(tcx_reset, s);
tcx_reset(s);
qemu_console_resize(s->ds, width, height);
}
static int __devinit tcx_init_one(struct of_device *op)
{
struct device_node *dp = op->node;
struct all_info *all;
int linebytes, i, err;
all = kzalloc(sizeof(*all), GFP_KERNEL);
if (!all)
return -ENOMEM;
spin_lock_init(&all->par.lock);
all->par.lowdepth =
(of_find_property(dp, "tcx-8-bit", NULL) != NULL);
sbusfb_fill_var(&all->info.var, dp->node, 8);
all->info.var.red.length = 8;
all->info.var.green.length = 8;
all->info.var.blue.length = 8;
linebytes = of_getintprop_default(dp, "linebytes",
all->info.var.xres);
all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
all->par.tec = of_ioremap(&op->resource[7], 0,
sizeof(struct tcx_tec), "tcx tec");
all->par.thc = of_ioremap(&op->resource[9], 0,
sizeof(struct tcx_thc), "tcx thc");
all->par.bt = of_ioremap(&op->resource[8], 0,
sizeof(struct bt_regs), "tcx dac");
all->info.screen_base = of_ioremap(&op->resource[0], 0,
all->par.fbsize, "tcx ram");
if (!all->par.tec || !all->par.thc ||
!all->par.bt || !all->info.screen_base) {
tcx_unmap_regs(all);
kfree(all);
return -ENOMEM;
}
memcpy(&all->par.mmap_map, &__tcx_mmap_map, sizeof(all->par.mmap_map));
if (!all->par.lowdepth) {
all->par.cplane = of_ioremap(&op->resource[4], 0,
all->par.fbsize * sizeof(u32),
"tcx cplane");
if (!all->par.cplane) {
tcx_unmap_regs(all);
kfree(all);
return -ENOMEM;
}
} else {
all->par.mmap_map[1].size = SBUS_MMAP_EMPTY;
all->par.mmap_map[4].size = SBUS_MMAP_EMPTY;
all->par.mmap_map[5].size = SBUS_MMAP_EMPTY;
all->par.mmap_map[6].size = SBUS_MMAP_EMPTY;
}
all->par.physbase = 0;
all->par.which_io = op->resource[0].flags & IORESOURCE_BITS;
for (i = 0; i < TCX_MMAP_ENTRIES; i++) {
int j;
switch (i) {
case 10:
j = 12;
break;
case 11: case 12:
j = i - 1;
break;
default:
j = i;
break;
};
all->par.mmap_map[i].poff = op->resource[j].start;
}
all->info.flags = FBINFO_DEFAULT;
all->info.fbops = &tcx_ops;
all->info.par = &all->par;
/* Initialize brooktree DAC. */
sbus_writel(0x04 << 24, &all->par.bt->addr); /* color planes */
sbus_writel(0xff << 24, &all->par.bt->control);
sbus_writel(0x05 << 24, &all->par.bt->addr);
sbus_writel(0x00 << 24, &all->par.bt->control);
sbus_writel(0x06 << 24, &all->par.bt->addr); /* overlay plane */
sbus_writel(0x73 << 24, &all->par.bt->control);
sbus_writel(0x07 << 24, &all->par.bt->addr);
sbus_writel(0x00 << 24, &all->par.bt->control);
tcx_reset(&all->info);
tcx_blank(FB_BLANK_UNBLANK, &all->info);
if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
tcx_unmap_regs(all);
kfree(all);
return -ENOMEM;
}
fb_set_cmap(&all->info.cmap, &all->info);
tcx_init_fix(&all->info, linebytes);
err = register_framebuffer(&all->info);
if (err < 0) {
fb_dealloc_cmap(&all->info.cmap);
tcx_unmap_regs(all);
kfree(all);
return err;
}
dev_set_drvdata(&op->dev, all);
printk("%s: TCX at %lx:%lx, %s\n",
dp->full_name,
all->par.which_io,
op->resource[0].start,
all->par.lowdepth ? "8-bit only" : "24-bit depth");
return 0;
}
__initfunc(char *tcxfb_init(struct fb_info_sbusfb *fb))
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct display *disp = &fb->disp;
struct fbtype *type = &fb->type;
unsigned long phys = fb->sbdp->reg_addrs[0].phys_addr;
int lowdepth, i, j;
#ifndef FBCON_HAS_CFB8
return NULL;
#endif
lowdepth = prom_getbool (fb->prom_node, "tcx-8-bit");
if (lowdepth) {
strcpy(fb->info.modename, "TCX8");
strcpy(fix->id, "TCX8");
} else {
strcpy(fb->info.modename, "TCX24");
strcpy(fix->id, "TCX24");
}
fix->line_length = fb->var.xres_virtual;
disp->scrollmode = SCROLL_YREDRAW;
if (!disp->screen_base)
disp->screen_base = (char *)sparc_alloc_io(phys, 0,
type->fb_size, "tcx_ram", fb->iospace, 0);
disp->screen_base += fix->line_length * fb->y_margin + fb->x_margin;
fb->s.tcx.tec = (struct tcx_tec *)sparc_alloc_io(fb->sbdp->reg_addrs[7].phys_addr, 0,
sizeof(struct tcx_tec), "tcx_tec", fb->iospace, 0);
fb->s.tcx.thc = (struct tcx_thc *)sparc_alloc_io(fb->sbdp->reg_addrs[9].phys_addr, 0,
sizeof(struct tcx_thc), "tcx_thc", fb->iospace, 0);
fb->s.tcx.bt = (struct bt_regs *)sparc_alloc_io(fb->sbdp->reg_addrs[8].phys_addr, 0,
sizeof(struct bt_regs), "tcx_dac", fb->iospace, 0);
if (!lowdepth) {
fb->s.tcx.cplane = (u32 *)sparc_alloc_io(fb->sbdp->reg_addrs[4].phys_addr, 0,
type->fb_size*4, "tcx_cplane", fb->iospace, 0);
type->fb_depth = 24;
fb->switch_from_graph = tcx_switch_from_graph;
} else {
/* As there can be one tcx in a machine only, we can write directly into
tcx_mmap_map */
tcx_mmap_map[1].size = SBUS_MMAP_EMPTY;
tcx_mmap_map[4].size = SBUS_MMAP_EMPTY;
tcx_mmap_map[5].size = SBUS_MMAP_EMPTY;
tcx_mmap_map[6].size = SBUS_MMAP_EMPTY;
}
fb->dispsw = fbcon_cfb8;
fb->margins = tcx_margins;
fb->loadcmap = tcx_loadcmap;
if (prom_getbool (fb->prom_node, "hw-cursor")) {
fb->setcursor = tcx_setcursor;
fb->setcursormap = tcx_setcursormap;
fb->setcurshape = tcx_setcurshape;
}
fb->restore_palette = tcx_restore_palette;
fb->blank = tcx_blank;
fb->unblank = tcx_unblank;
fb->reset = tcx_reset;
fb->physbase = 0;
for (i = 0; i < 13; i++) {
/* tcx_mmap_map has to be sorted by voff, while
order of phys registers from PROM differs a little
bit. Here is the correction */
switch (i) {
case 10: j = 12; break;
case 11:
case 12: j = i - 1; break;
default: j = i; break;
}
tcx_mmap_map[i].poff = fb->sbdp->reg_addrs[j].phys_addr;
}
fb->mmap_map = tcx_mmap_map;
/* Initialize Brooktree DAC */
fb->s.tcx.bt->addr = 0x04 << 24; /* color planes */
fb->s.tcx.bt->control = 0xff << 24;
fb->s.tcx.bt->addr = 0x05 << 24;
fb->s.tcx.bt->control = 0x00 << 24;
fb->s.tcx.bt->addr = 0x06 << 24; /* overlay plane */
fb->s.tcx.bt->control = 0x73 << 24;
fb->s.tcx.bt->addr = 0x07 << 24;
fb->s.tcx.bt->control = 0x00 << 24;
sprintf(idstring, "tcx at %x.%08lx Rev %d.%d %s", fb->iospace, phys,
(fb->s.tcx.thc->thc_rev >> TCX_THC_REV_REV_SHIFT) & TCX_THC_REV_REV_MASK,
(fb->s.tcx.thc->thc_rev >> TCX_THC_REV_MINREV_SHIFT) & TCX_THC_REV_MINREV_MASK,
lowdepth ? "8-bit only" : "24-bit depth");
tcx_reset(fb);
return idstring;
}
