static int
xboxfb_init(struct vt_device *vd)
{
struct fb_info *info;
int i;
if (!arch_i386_is_xbox)
return (CN_DEAD);
info = &xboxfb_info;
/*
* We must make a mapping from video framebuffer memory
* to real. This is very crude: we map the entire
* videomemory to PAGE_SIZE! Since our kernel lives at
* it's relocated address range (0xc0xxxxxx), it won't
* care.
*
* We use address PAGE_SIZE and up so we can still trap
* NULL pointers. Once the real init is called, the
* mapping will be done via the OS and stored in a more
* sensible location ... but since we're not fully
* initialized, this is our only way to go :-(
*/
for (i = 0; i < (XBOX_FB_SIZE / PAGE_SIZE); i++) {
pmap_kenter(((i + 1) * PAGE_SIZE),
XBOX_FB_START + (i * PAGE_SIZE));
}
pmap_kenter((i + 1) * PAGE_SIZE,
XBOX_FB_START_PTR - XBOX_FB_START_PTR % PAGE_SIZE);
/* Ensure the framebuffer is where we want it to be. */
*(uint32_t *)((i + 1) * PAGE_SIZE + XBOX_FB_START_PTR % PAGE_SIZE) =
XBOX_FB_START;
/* Initialize fb_info. */
info = vd->vd_softc;
info->fb_width = VT_XBOX_WIDTH;
info->fb_height = VT_XBOX_HEIGHT;
info->fb_size = XBOX_FB_SIZE;
info->fb_stride = VT_XBOX_WIDTH * 4; /* 32bits per pixel. */
info->fb_vbase = PAGE_SIZE;
info->fb_pbase = XBOX_FB_START_PTR;
/* Get pixel storage size. */
info->fb_bpp = 32;
/* Get color depth. */
info->fb_depth = 24;
vt_generate_vga_palette(info->fb_cmap, COLOR_FORMAT_RGB, 255, 0, 255,
8, 255, 16);
fb_probe(info);
vt_fb_init(vd);
return (CN_INTERNAL);
}
static int
vt_efb_init(struct vt_device *vd)
{
struct ofw_pci_register pciaddrs[8];
struct fb_info *info;
int i, len, n_pciaddrs;
phandle_t node;
if (vd->vd_softc == NULL)
vd->vd_softc = (void *)&local_info;
info = vd->vd_softc;
node = vt_efb_get_fbnode();
if (node == -1)
return (CN_DEAD);
#define GET(name, var) \
if (OF_getproplen(node, (name)) != sizeof(info->fb_##var)) \
return (CN_DEAD); \
OF_getencprop(node, (name), &info->fb_##var, sizeof(info->fb_##var)); \
if (info->fb_##var == 0) \
return (CN_DEAD);
GET("height", height)
GET("width", width)
GET("depth", depth)
GET("linebytes", stride)
#undef GET
info->fb_size = info->fb_height * info->fb_stride;
/*
* Get the PCI addresses of the adapter, if present. The node may be the
* child of the PCI device: in that case, try the parent for
* the assigned-addresses property.
*/
len = OF_getprop(node, "assigned-addresses", pciaddrs,
sizeof(pciaddrs));
if (len == -1) {
len = OF_getprop(OF_parent(node), "assigned-addresses",
pciaddrs, sizeof(pciaddrs));
}
if (len == -1)
len = 0;
n_pciaddrs = len / sizeof(struct ofw_pci_register);
/*
* Grab the physical address of the framebuffer, and then map it
* into our memory space. If the MMU is not yet up, it will be
* remapped for us when relocation turns on.
*/
if (OF_getproplen(node, "address") == sizeof(info->fb_pbase)) {
/* XXX We assume #address-cells is 1 at this point. */
OF_getencprop(node, "address", &info->fb_pbase,
sizeof(info->fb_pbase));
#if defined(__powerpc__)
sc->sc_memt = &bs_be_tag;
bus_space_map(sc->sc_memt, info->fb_pbase, info->fb_size,
BUS_SPACE_MAP_PREFETCHABLE, &info->fb_vbase);
#elif defined(__sparc64__)
OF_decode_addr(node, 0, &space, &phys);
sc->sc_memt = &vt_efb_memt[0];
info->addr = sparc64_fake_bustag(space, fb_phys, sc->sc_memt);
#else
bus_space_map(fdtbus_bs_tag, info->fb_pbase, info->fb_size,
BUS_SPACE_MAP_PREFETCHABLE,
(bus_space_handle_t *)&info->fb_vbase);
#endif
} else {
/*
* Some IBM systems don't have an address property. Try to
* guess the framebuffer region from the assigned addresses.
* This is ugly, but there doesn't seem to be an alternative.
* Linux does the same thing.
*/
info->fb_pbase = n_pciaddrs;
for (i = 0; i < n_pciaddrs; i++) {
/* If it is too small, not the framebuffer */
if (pciaddrs[i].size_lo < info->fb_size)
continue;
/* If it is not memory, it isn't either */
if (!(pciaddrs[i].phys_hi &
OFW_PCI_PHYS_HI_SPACE_MEM32))
continue;
/* This could be the framebuffer */
info->fb_pbase = i;
/* If it is prefetchable, it certainly is */
if (pciaddrs[i].phys_hi & OFW_PCI_PHYS_HI_PREFETCHABLE)
break;
}
if (info->fb_pbase == n_pciaddrs) /* No candidates found */
return (CN_DEAD);
#if defined(__powerpc__)
OF_decode_addr(node, info->fb_pbase, &sc->sc_memt,
&info->fb_vbase);
#elif defined(__sparc64__)
OF_decode_addr(node, info->fb_pbase, &space, &info->fb_pbase);
sc->sc_memt = &vt_efb_memt[0];
info->fb_vbase = sparc64_fake_bustag(space, info->fb_pbase,
sc->sc_memt);
#else
bus_space_map(fdtbus_bs_tag, info->fb_pbase, info->fb_size,
BUS_SPACE_MAP_PREFETCHABLE,
(bus_space_handle_t *)&info->fb_vbase);
#endif
}
/* blank full size */
len = info->fb_size / 4;
for (i = 0; i < len; i++) {
((uint32_t *)info->fb_vbase)[i] = 0;
}
/* Get pixel storage size. */
info->fb_bpp = info->fb_stride / info->fb_width * 8;
#ifdef FDT
vt_efb_initialize(info, node);
#else
vt_efb_initialize(info);
#endif
vt_fb_init(vd);
return (CN_INTERNAL);
}
static int
vt_efifb_init(struct vt_device *vd)
{
int depth, d;
struct fb_info *info;
struct efi_fb *efifb;
caddr_t kmdp;
info = vd->vd_softc;
if (info == NULL)
info = vd->vd_softc = (void *)&local_info;
kmdp = preload_search_by_type("elf kernel");
if (kmdp == NULL)
kmdp = preload_search_by_type("elf64 kernel");
efifb = (struct efi_fb *)preload_search_info(kmdp,
MODINFO_METADATA | MODINFOMD_EFI_FB);
if (efifb == NULL)
return (CN_DEAD);
info->fb_height = efifb->fb_height;
info->fb_width = efifb->fb_width;
depth = fls(efifb->fb_mask_red);
d = fls(efifb->fb_mask_green);
depth = d > depth ? d : depth;
d = fls(efifb->fb_mask_blue);
depth = d > depth ? d : depth;
d = fls(efifb->fb_mask_reserved);
depth = d > depth ? d : depth;
info->fb_depth = depth;
info->fb_stride = efifb->fb_stride * (depth / 8);
vt_generate_cons_palette(info->fb_cmap, COLOR_FORMAT_RGB,
efifb->fb_mask_red, ffs(efifb->fb_mask_red) - 1,
efifb->fb_mask_green, ffs(efifb->fb_mask_green) - 1,
efifb->fb_mask_blue, ffs(efifb->fb_mask_blue) - 1);
info->fb_size = info->fb_height * info->fb_stride;
info->fb_pbase = efifb->fb_addr;
/*
* Use the direct map as a crutch until pmap is available. Once pmap
* is online, the framebuffer will be remapped by vt_efifb_remap()
* using pmap_mapdev_attr().
*/
info->fb_vbase = PHYS_TO_DMAP(efifb->fb_addr);
/* Get pixel storage size. */
info->fb_bpp = info->fb_stride / info->fb_width * 8;
/*
* Early FB driver work with static window buffer, so reduce to minimal
* size, buffer or screen.
*/
info->fb_width = MIN(info->fb_width, VT_FB_DEFAULT_WIDTH);
info->fb_height = MIN(info->fb_height, VT_FB_DEFAULT_HEIGHT);
vt_fb_init(vd);
return (CN_INTERNAL);
}
static int
vt_efb_init(struct vt_device *vd)
{
int depth, d, disable, i, len;
struct fb_info *info;
struct efi_fb *efifb;
caddr_t kmdp;
info = vd->vd_softc;
disable = 0;
TUNABLE_INT_FETCH("hw.syscons.disable", &disable);
if (disable != 0)
return (CN_DEAD);
kmdp = preload_search_by_type("elf kernel");
if (kmdp == NULL)
kmdp = preload_search_by_type("elf64 kernel");
efifb = (struct efi_fb *)preload_search_info(kmdp,
MODINFO_METADATA | MODINFOMD_EFI_FB);
if (efifb == NULL)
return (CN_DEAD);
info->fb_height = efifb->fb_height;
info->fb_width = efifb->fb_width;
depth = fls(efifb->fb_mask_red);
d = fls(efifb->fb_mask_green);
depth = d > depth ? d : depth;
d = fls(efifb->fb_mask_blue);
depth = d > depth ? d : depth;
d = fls(efifb->fb_mask_reserved);
depth = d > depth ? d : depth;
info->fb_depth = depth;
info->fb_stride = efifb->fb_stride * (depth / 8);
vt_generate_vga_palette(info->fb_cmap, COLOR_FORMAT_RGB,
efifb->fb_mask_red, ffs(efifb->fb_mask_red) - 1,
efifb->fb_mask_green, ffs(efifb->fb_mask_green) - 1,
efifb->fb_mask_blue, ffs(efifb->fb_mask_blue) - 1);
info->fb_size = info->fb_height * info->fb_stride;
info->fb_pbase = efifb->fb_addr;
/*
* We could use pmap_mapdev here except that the kernel pmap
* hasn't been created yet and hence any attempt to lock it will
* fail.
*/
info->fb_vbase = PHYS_TO_DMAP(efifb->fb_addr);
/* blank full size */
len = info->fb_size / 4;
for (i = 0; i < len; i++) {
((uint32_t *)info->fb_vbase)[i] = 0;
}
/* Get pixel storage size. */
info->fb_bpp = info->fb_stride / info->fb_width * 8;
/*
* Early FB driver work with static window buffer, so reduce to minimal
* size, buffer or screen.
*/
info->fb_width = MIN(info->fb_width, VT_FB_DEFAULT_WIDTH);
info->fb_height = MIN(info->fb_height, VT_FB_DEFAULT_HEIGHT);
fb_probe(info);
vt_fb_init(vd);
return (CN_INTERNAL);
}
