NetBSD-5.0.2/sys/dev/pci/chipsfb.c
/* $NetBSD: chipsfb.c,v 1.15 2008/05/08 01:43:17 macallan Exp $ */
/*
* Copyright (c) 2006 Michael Lorenz
* All rights reserved.
*
* 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 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.
*/
/*
* A console driver for Chips & Technologies 65550 graphics controllers
* tested on macppc only so far
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: chipsfb.c,v 1.15 2008/05/08 01:43:17 macallan Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/callout.h>
#include <sys/lwp.h>
#include <sys/kauth.h>
#include <uvm/uvm_extern.h>
#include <dev/videomode/videomode.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pciio.h>
#include <dev/pci/chipsfbreg.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wsfont/wsfont.h>
#include <dev/rasops/rasops.h>
#include <dev/wscons/wsdisplay_vconsvar.h>
#include <dev/i2c/i2cvar.h>
#include "opt_wsemul.h"
#include "opt_chipsfb.h"
struct chipsfb_softc {
struct device sc_dev;
pci_chipset_tag_t sc_pc;
pcitag_t sc_pcitag;
bus_space_tag_t sc_memt;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_memh;
bus_space_tag_t sc_fbt;
bus_space_tag_t sc_ioregt;
bus_space_handle_t sc_fbh;
bus_space_handle_t sc_ioregh;
bus_addr_t sc_fb, sc_ioreg;
bus_size_t sc_fbsize, sc_ioregsize;
void *sc_ih;
size_t memsize;
int bits_per_pixel;
int width, height, linebytes;
int sc_mode;
uint32_t sc_bg;
u_char sc_cmap_red[256];
u_char sc_cmap_green[256];
u_char sc_cmap_blue[256];
int sc_dacw;
/*
* I2C stuff
* DDC2 clock is on GPIO1, data on GPIO0
*/
struct i2c_controller sc_i2c;
uint8_t sc_edid[1024];
int sc_edidbytes; /* number of bytes read from the monitor */
struct vcons_data vd;
};
static struct vcons_screen chipsfb_console_screen;
extern const u_char rasops_cmap[768];
static int chipsfb_match(struct device *, struct cfdata *, void *);
static void chipsfb_attach(struct device *, struct device *, void *);
CFATTACH_DECL(chipsfb, sizeof(struct chipsfb_softc), chipsfb_match,
chipsfb_attach, NULL, NULL);
static void chipsfb_init(struct chipsfb_softc *);
static void chipsfb_cursor(void *, int, int, int);
static void chipsfb_copycols(void *, int, int, int, int);
static void chipsfb_erasecols(void *, int, int, int, long);
static void chipsfb_copyrows(void *, int, int, int);
static void chipsfb_eraserows(void *, int, int, long);
#if 0
static int chipsfb_allocattr(void *, int, int, int, long *);
static void chipsfb_scroll(void *, void *, int);
static int chipsfb_load_font(void *, void *, struct wsdisplay_font *);
#endif
static int chipsfb_putcmap(struct chipsfb_softc *,
struct wsdisplay_cmap *);
static int chipsfb_getcmap(struct chipsfb_softc *,
struct wsdisplay_cmap *);
static int chipsfb_putpalreg(struct chipsfb_softc *, uint8_t, uint8_t,
uint8_t, uint8_t);
static void chipsfb_bitblt(struct chipsfb_softc *, int, int, int, int,
int, int, uint8_t);
static void chipsfb_rectfill(struct chipsfb_softc *, int, int, int, int,
int);
static void chipsfb_putchar(void *, int, int, u_int, long);
static void chipsfb_setup_mono(struct chipsfb_softc *, int, int, int,
int, uint32_t, uint32_t);
static void chipsfb_feed(struct chipsfb_softc *, int, uint8_t *);
#if 0
static void chipsfb_showpal(struct chipsfb_softc *);
#endif
static void chipsfb_restore_palette(struct chipsfb_softc *);
static void chipsfb_wait_idle(struct chipsfb_softc *);
static uint32_t chipsfb_probe_vram(struct chipsfb_softc *);
struct wsscreen_descr chipsfb_defaultscreen = {
"default",
0, 0,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
};
const struct wsscreen_descr *_chipsfb_scrlist[] = {
&chipsfb_defaultscreen,
/* XXX other formats, graphics screen? */
};
struct wsscreen_list chipsfb_screenlist = {
sizeof(_chipsfb_scrlist) / sizeof(struct wsscreen_descr *), _chipsfb_scrlist
};
static int chipsfb_ioctl(void *, void *, u_long, void *, int,
struct lwp *);
static paddr_t chipsfb_mmap(void *, void *, off_t, int);
static void chipsfb_clearscreen(struct chipsfb_softc *);
static void chipsfb_init_screen(void *, struct vcons_screen *, int,
long *);
struct wsdisplay_accessops chipsfb_accessops = {
chipsfb_ioctl,
chipsfb_mmap,
NULL, /* load_font */
NULL, /* polls */
NULL, /* scroll */
};
/*
* Inline functions for getting access to register aperture.
*/
static inline void
chipsfb_write32(struct chipsfb_softc *sc, uint32_t reg, uint32_t val)
{
bus_space_write_4(sc->sc_fbt, sc->sc_fbh, reg, val);
}
static inline uint32_t
chipsfb_read32(struct chipsfb_softc *sc, uint32_t reg)
{
return bus_space_read_4(sc->sc_fbt, sc->sc_fbh, reg);
}
static inline void
chipsfb_write_vga(struct chipsfb_softc *sc, uint32_t reg, uint8_t val)
{
bus_space_write_1(sc->sc_iot, sc->sc_ioregh, reg, val);
}
static inline uint8_t
chipsfb_read_vga(struct chipsfb_softc *sc, uint32_t reg)
{
return bus_space_read_1(sc->sc_iot, sc->sc_ioregh, reg);
}
static inline uint8_t
chipsfb_read_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index)
{
chipsfb_write_vga(sc, reg & 0xfffe, index);
return chipsfb_read_vga(sc, reg | 0x0001);
}
static inline void
chipsfb_write_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index,
uint8_t val)
{
chipsfb_write_vga(sc, reg & 0xfffe, index);
chipsfb_write_vga(sc, reg | 0x0001, val);
}
static void
chipsfb_wait_idle(struct chipsfb_softc *sc)
{
#ifdef CHIPSFB_DEBUG
chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0);
#endif
/* spin until the blitter is idle */
while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) {
}
#ifdef CHIPSFB_DEBUG
chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0xffffffff);
#endif
}
static int
chipsfb_match(struct device *parent, struct cfdata *match, void *aux)
{
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY ||
PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA)
return 0;
if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) &&
(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65550))
return 100;
if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) &&
(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65554))
return 100;
return 0;
}
static void
chipsfb_attach(struct device *parent, struct device *self, void *aux)
{
struct chipsfb_softc *sc = (void *)self;
struct pci_attach_args *pa = aux;
char devinfo[256];
struct wsemuldisplaydev_attach_args aa;
struct rasops_info *ri;
prop_dictionary_t dict;
pcireg_t screg;
ulong defattr;
bool console = false;
int width, height, i, j;
uint32_t bg, fg, ul;
dict = device_properties(self);
sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
sc->sc_pc = pa->pa_pc;
sc->sc_pcitag = pa->pa_tag;
sc->sc_dacw = -1;
screg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_COMMAND_STATUS_REG);
screg |= PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED;
pci_conf_write(sc->sc_pc, sc->sc_pcitag,PCI_COMMAND_STATUS_REG,screg);
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
aprint_normal(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
#ifdef CHIPSFB_DEBUG
printf(prop_dictionary_externalize(dict));
#endif
sc->sc_memt = pa->pa_memt;
sc->sc_iot = pa->pa_iot;
/* the framebuffer */
if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM,
BUS_SPACE_MAP_LINEAR,
&sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) {
aprint_error_dev(&sc->sc_dev, "failed to map the frame buffer.\n");
}
/* IO-mapped registers */
if (bus_space_map(sc->sc_iot, 0x0, 0x400, 0, &sc->sc_ioregh) != 0) {
aprint_error_dev(&sc->sc_dev, "failed to map IO registers.\n");
}
sc->memsize = chipsfb_probe_vram(sc);
chipsfb_init(sc);
/* we should read these from the chip instead of depending on OF */
width = height = -1;
/* detect panel size */
width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB);
width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1)
& 0x0f) << 8;
width = (width + 1) * 8;
height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB);
height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1)
& 0x0f) << 8;
height++;
aprint_verbose("Panel size: %d x %d\n", width, height);
if (!prop_dictionary_get_uint32(dict, "width", &sc->width))
sc->width = width;
if (!prop_dictionary_get_uint32(dict, "height", &sc->height))
sc->height = height;
if (!prop_dictionary_get_uint32(dict, "depth", &sc->bits_per_pixel))
sc->bits_per_pixel = 8;
if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->linebytes))
sc->linebytes = (sc->width * sc->bits_per_pixel) >> 3;
prop_dictionary_get_bool(dict, "is_console", &console);
#ifdef notyet
/* XXX this should at least be configurable via kernel config */
chipsfb_set_videomode(sc, &videomode_list[16]);
#endif
vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops);
sc->vd.init_screen = chipsfb_init_screen;
ri = &chipsfb_console_screen.scr_ri;
if (console) {
vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1,
&defattr);
chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
chipsfb_defaultscreen.textops = &ri->ri_ops;
chipsfb_defaultscreen.capabilities = ri->ri_caps;
chipsfb_defaultscreen.nrows = ri->ri_rows;
chipsfb_defaultscreen.ncols = ri->ri_cols;
wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr);
} else {
/*
* since we're not the console we can postpone the rest
* until someone actually allocates a screen for us
*/
#ifdef notyet
chipsfb_set_videomode(sc, &videomode_list[0]);
#endif
}
rasops_unpack_attr(defattr, &fg, &bg, &ul);
sc->sc_bg = ri->ri_devcmap[bg];
chipsfb_clearscreen(sc);
aprint_normal_dev(&sc->sc_dev, "%d MB aperture, %d MB VRAM at 0x%08x\n",
(u_int)(sc->sc_fbsize >> 20),
sc->memsize >> 20, (u_int)sc->sc_fb);
#ifdef CHIPSFB_DEBUG
aprint_debug("fb: %08lx\n", (ulong)ri->ri_bits);
#endif
j = 0;
for (i = 0; i < 256; i++) {
chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1],
rasops_cmap[j + 2]);
j += 3;
}
aa.console = console;
aa.scrdata = &chipsfb_screenlist;
aa.accessops = &chipsfb_accessops;
aa.accesscookie = &sc->vd;
config_found(self, &aa, wsemuldisplaydevprint);
}
static int
chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r,
uint8_t g, uint8_t b)
{
sc->sc_cmap_red[index] = r;
sc->sc_cmap_green[index] = g;
sc->sc_cmap_blue[index] = b;
chipsfb_write_vga(sc, CT_DACMASK, 0xff);
chipsfb_write_vga(sc, CT_WRITEINDEX, index);
chipsfb_write_vga(sc, CT_DACDATA, r);
chipsfb_write_vga(sc, CT_DACDATA, g);
chipsfb_write_vga(sc, CT_DACDATA, b);
return 0;
}
static int
chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm)
{
u_char *r, *g, *b;
u_int index = cm->index;
u_int count = cm->count;
int i, error;
u_char rbuf[256], gbuf[256], bbuf[256];
#ifdef CHIPSFB_DEBUG
aprint_debug("putcmap: %d %d\n",index, count);
#endif
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(&sc->sc_cmap_red[index], &rbuf[index], count);
memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
r = &sc->sc_cmap_red[index];
g = &sc->sc_cmap_green[index];
b = &sc->sc_cmap_blue[index];
for (i = 0; i < count; i++) {
chipsfb_putpalreg(sc, index, *r, *g, *b);
index++;
r++, g++, b++;
}
return 0;
}
static int
chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm)
{
u_int index = cm->index;
u_int count = cm->count;
int error;
if (index >= 255 || count > 256 || index + count > 256)
return EINVAL;
error = copyout(&sc->sc_cmap_red[index], cm->red, count);
if (error)
return error;
error = copyout(&sc->sc_cmap_green[index], cm->green, count);
if (error)
return error;
error = copyout(&sc->sc_cmap_blue[index], cm->blue, count);
if (error)
return error;
return 0;
}
static void
chipsfb_clearscreen(struct chipsfb_softc *sc)
{
chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg);
}
/*
* wsdisplay_emulops
*/
static void
chipsfb_cursor(void *cookie, int on, int row, int col)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct chipsfb_softc *sc = scr->scr_cookie;
int x, y, wi, he;
wi = ri->ri_font->fontwidth;
he = ri->ri_font->fontheight;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
x = ri->ri_ccol * wi + ri->ri_xorigin;
y = ri->ri_crow * he + ri->ri_yorigin;
if (ri->ri_flg & RI_CURSOR) {
chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST);
ri->ri_flg &= ~RI_CURSOR;
}
ri->ri_crow = row;
ri->ri_ccol = col;
if (on) {
x = ri->ri_ccol * wi + ri->ri_xorigin;
y = ri->ri_crow * he + ri->ri_yorigin;
chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST);
ri->ri_flg |= RI_CURSOR;
}
} else {
ri->ri_flg &= ~RI_CURSOR;
ri->ri_crow = row;
ri->ri_ccol = col;
}
}
#if 0
int
chipsfb_mapchar(void *cookie, int uni, u_int *index)
{
return 0;
}
#endif
static void
chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct chipsfb_softc *sc = scr->scr_cookie;
int32_t xs, xd, y, width, height;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_font->fontwidth * ncols;
height = ri->ri_font->fontheight;
chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY);
}
}
static void
chipsfb_erasecols(void *cookie, int row, int startcol, int ncols,
long fillattr)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct chipsfb_softc *sc = scr->scr_cookie;
int32_t x, y, width, height, fg, bg, ul;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_font->fontwidth * ncols;
height = ri->ri_font->fontheight;
rasops_unpack_attr(fillattr, &fg, &bg, &ul);
chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
}
}
static void
chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct chipsfb_softc *sc = scr->scr_cookie;
int32_t x, ys, yd, width, height;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
x = ri->ri_xorigin;
ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
width = ri->ri_emuwidth;
height = ri->ri_font->fontheight * nrows;
chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY);
}
}
static void
chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct chipsfb_softc *sc = scr->scr_cookie;
int32_t x, y, width, height, fg, bg, ul;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
rasops_unpack_attr(fillattr, &fg, &bg, &ul);
if ((row == 0) && (nrows == ri->ri_rows)) {
/* clear the whole screen */
chipsfb_rectfill(sc, 0, 0, ri->ri_width,
ri->ri_height, ri->ri_devcmap[bg]);
} else {
x = ri->ri_xorigin;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_emuwidth;
height = ri->ri_font->fontheight * nrows;
chipsfb_rectfill(sc, x, y, width, height,
ri->ri_devcmap[bg]);
}
}
}
static void
chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd,
int width, int height, uint8_t rop)
{
uint32_t src, dst, cmd = rop, stride, size;
cmd |= BLT_PAT_IS_SOLID;
/* we assume 8 bit for now */
src = xs + ys * sc->linebytes;
dst = xd + yd * sc->linebytes;
if (xs < xd) {
/* right-to-left operation */
cmd |= BLT_START_RIGHT;
src += width - 1;
dst += width - 1;
}
if (ys < yd) {
/* bottom-to-top operation */
cmd |= BLT_START_BOTTOM;
src += (height - 1) * sc->linebytes;
dst += (height - 1) * sc->linebytes;
}
stride = (sc->linebytes << 16) | sc->linebytes;
size = (height << 16) | width;
chipsfb_wait_idle(sc);
chipsfb_write32(sc, CT_BLT_STRIDE, stride);
chipsfb_write32(sc, CT_BLT_SRCADDR, src);
chipsfb_write32(sc, CT_BLT_DSTADDR, dst);
chipsfb_write32(sc, CT_BLT_CONTROL, cmd);
chipsfb_write32(sc, CT_BLT_SIZE, size);
#ifdef CHIPSFB_WAIT
chipsfb_wait_idle(sc);
#endif
}
static void
chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width,
int height, int colour)
{
uint32_t dst, cmd, stride, size;
cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT;
/* we assume 8 bit for now */
dst = x + y * sc->linebytes;
stride = (sc->linebytes << 16) | sc->linebytes;
size = (height << 16) | width;
chipsfb_wait_idle(sc);
chipsfb_write32(sc, CT_BLT_STRIDE, stride);
chipsfb_write32(sc, CT_BLT_SRCADDR, dst);
chipsfb_write32(sc, CT_BLT_DSTADDR, dst);
chipsfb_write32(sc, CT_BLT_CONTROL, cmd);
chipsfb_write32(sc, CT_BLT_BG, colour);
chipsfb_write32(sc, CT_BLT_FG, colour);
chipsfb_write32(sc, CT_BLT_SIZE, size);
#ifdef CHIPSFB_WAIT
chipsfb_wait_idle(sc);
#endif
}
static void
chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct chipsfb_softc *sc = scr->scr_cookie;
if (__predict_false((unsigned int)row > ri->ri_rows ||
(unsigned int)col > ri->ri_cols))
return;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
uint8_t *data;
int fg, bg, uc;
int x, y, wi, he;
wi = ri->ri_font->fontwidth;
he = ri->ri_font->fontheight;
if (!CHAR_IN_FONT(c, ri->ri_font))
return;
bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf];
fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf];
x = ri->ri_xorigin + col * wi;
y = ri->ri_yorigin + row * he;
if (c == 0x20) {
chipsfb_rectfill(sc, x, y, wi, he, bg);
} else {
uc = c-ri->ri_font->firstchar;
data = (uint8_t *)ri->ri_font->data + uc *
ri->ri_fontscale;
chipsfb_setup_mono(sc, x, y, wi, he, fg, bg);
chipsfb_feed(sc, ri->ri_font->stride * he, data);
}
}
}
static void
chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width,
int height, uint32_t fg, uint32_t bg)
{
uint32_t dst, cmd, stride, size;
cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY;
/* we assume 8 bit for now */
dst = xd + yd * sc->linebytes;
stride = (sc->linebytes << 16);
size = (height << 16) | width;
chipsfb_wait_idle(sc);
chipsfb_write32(sc, CT_BLT_STRIDE, stride);
chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE);
chipsfb_write32(sc, CT_BLT_DSTADDR, dst);
chipsfb_write32(sc, CT_BLT_SRCADDR, 0);
chipsfb_write32(sc, CT_BLT_CONTROL, cmd);
chipsfb_write32(sc, CT_BLT_BG, bg);
chipsfb_write32(sc, CT_BLT_FG, fg);
chipsfb_write32(sc, CT_BLT_SIZE, size);
}
static void
chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data)
{
int i;
uint32_t latch = 0, bork;
int shift = 0;
for (i = 0; i < count; i++) {
bork = data[i];
latch |= (bork << shift);
if (shift == 24) {
chipsfb_write32(sc, CT_OFF_DATA, latch);
latch = 0;
shift = 0;
} else
shift += 8;
}
if (shift != 0) {
chipsfb_write32(sc, CT_OFF_DATA, latch);
}
/* apparently the chip wants 64bit-aligned data or it won't go idle */
if ((count + 3) & 0x04) {
chipsfb_write32(sc, CT_OFF_DATA, 0);
}
#ifdef CHIPSFB_WAIT
chipsfb_wait_idle(sc);
#endif
}
#if 0
static void
chipsfb_showpal(struct chipsfb_softc *sc)
{
int i, x = 0;
for (i = 0; i < 16; i++) {
chipsfb_rectfill(sc, x, 0, 64, 64, i);
x += 64;
}
}
#endif
#if 0
static int
chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
{
return 0;
}
#endif
static void
chipsfb_restore_palette(struct chipsfb_softc *sc)
{
int i;
for (i = 0; i < 256; i++) {
chipsfb_putpalreg(sc,
i,
sc->sc_cmap_red[i],
sc->sc_cmap_green[i],
sc->sc_cmap_blue[i]);
}
}
/*
* wsdisplay_accessops
*/
static int
chipsfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
struct lwp *l)
{
struct vcons_data *vd = v;
struct chipsfb_softc *sc = vd->cookie;
struct wsdisplay_fbinfo *wdf;
struct vcons_screen *ms = vd->active;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_PCIMISC;
return 0;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->height = ms->scr_ri.ri_height;
wdf->width = ms->scr_ri.ri_width;
wdf->depth = ms->scr_ri.ri_depth;
wdf->cmsize = 256;
return 0;
case WSDISPLAYIO_GETCMAP:
return chipsfb_getcmap(sc,
(struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return chipsfb_putcmap(sc,
(struct wsdisplay_cmap *)data);
/* PCI config read/write passthrough. */
case PCI_IOC_CFGREAD:
case PCI_IOC_CFGWRITE:
return (pci_devioctl(sc->sc_pc, sc->sc_pcitag,
cmd, data, flag, l));
case WSDISPLAYIO_SMODE:
{
int new_mode = *(int*)data;
if (new_mode != sc->sc_mode) {
sc->sc_mode = new_mode;
if(new_mode == WSDISPLAYIO_MODE_EMUL) {
chipsfb_restore_palette(sc);
vcons_redraw_screen(ms);
}
}
}
return 0;
}
return EPASSTHROUGH;
}
static paddr_t
chipsfb_mmap(void *v, void *vs, off_t offset, int prot)
{
struct vcons_data *vd = v;
struct chipsfb_softc *sc = vd->cookie;
struct lwp *me;
paddr_t pa;
/* 'regular' framebuffer mmap()ing */
if (offset < sc->memsize) {
pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
/*
* restrict all other mappings to processes with superuser privileges
* or the kernel itself
*/
me = curlwp;
if (me != NULL) {
if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER,
NULL) != 0) {
aprint_normal_dev(&sc->sc_dev, "mmap() rejected.\n");
return -1;
}
}
if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) {
pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
#ifdef PCI_MAGIC_IO_RANGE
/* allow mapping of IO space */
if ((offset >= PCI_MAGIC_IO_RANGE) &&
(offset < PCI_MAGIC_IO_RANGE + 0x10000)) {
pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE,
0, prot, BUS_SPACE_MAP_LINEAR);
return pa;
}
#endif
#ifdef OFB_ALLOW_OTHERS
if (offset >= 0x80000000) {
pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
#endif
return -1;
}
static void
chipsfb_init_screen(void *cookie, struct vcons_screen *scr,
int existing, long *defattr)
{
struct chipsfb_softc *sc = cookie;
struct rasops_info *ri = &scr->scr_ri;
ri->ri_depth = sc->bits_per_pixel;
ri->ri_width = sc->width;
ri->ri_height = sc->height;
ri->ri_stride = sc->width;
ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh);
#ifdef CHIPSFB_DEBUG
aprint_debug("addr: %08lx\n", (ulong)ri->ri_bits);
#endif
if (existing) {
ri->ri_flg |= RI_CLEAR;
}
rasops_init(ri, sc->height/8, sc->width/8);
ri->ri_caps = WSSCREEN_WSCOLORS;
rasops_reconfig(ri, sc->height / ri->ri_font->fontheight,
sc->width / ri->ri_font->fontwidth);
ri->ri_hw = scr;
ri->ri_ops.copyrows = chipsfb_copyrows;
ri->ri_ops.copycols = chipsfb_copycols;
ri->ri_ops.eraserows = chipsfb_eraserows;
ri->ri_ops.erasecols = chipsfb_erasecols;
ri->ri_ops.cursor = chipsfb_cursor;
ri->ri_ops.putchar = chipsfb_putchar;
}
#if 0
int
chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data)
{
return 0;
}
#endif
static void
chipsfb_init(struct chipsfb_softc *sc)
{
chipsfb_wait_idle(sc);
chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL,
ENABLE_CRTC_EXT | ENABLE_ATTR_EXT);
chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING,
ENABLE_LINEAR);
/* setup the blitter */
}
static uint32_t
chipsfb_probe_vram(struct chipsfb_softc *sc)
{
uint32_t ofs = 0x00080000; /* 512kB */
/*
* advance in 0.5MB steps, see if we can read back what we wrote and
* if what we wrote to 0 is left untouched. Max. fb size is 4MB so
* we voluntarily stop there.
*/
chipsfb_write32(sc, 0, 0xf0f0f0f0);
chipsfb_write32(sc, ofs, 0x0f0f0f0f);
while ((chipsfb_read32(sc, 0) == 0xf0f0f0f0) &&
(chipsfb_read32(sc, ofs) == 0x0f0f0f0f) &&
(ofs < 0x00400000)) {
ofs += 0x00080000;
chipsfb_write32(sc, ofs, 0x0f0f0f0f);
}
return ofs;
}