2 * Copyright (c) 2003 Peter Grehan
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/module.h>
34 #include <sys/kernel.h>
35 #include <sys/sysctl.h>
36 #include <sys/limits.h>
40 #include <sys/fcntl.h>
41 #include <sys/malloc.h>
43 #include <sys/consio.h>
45 #include <machine/bus.h>
46 #include <machine/sc_machdep.h>
50 #include <dev/fb/fbreg.h>
51 #include <dev/syscons/syscons.h>
53 #include <dev/ofw/openfirm.h>
54 #include <dev/ofw/ofw_bus.h>
55 #include <dev/ofw/ofw_pci.h>
56 #include <powerpc/ofw/ofw_syscons.h>
58 static int ofwfb_ignore_mmap_checks;
59 SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD, 0, "ofwfb");
60 SYSCTL_INT(_hw_ofwfb, OID_AUTO, relax_mmap, CTLFLAG_RW,
61 &ofwfb_ignore_mmap_checks, 0, "relax mmap bounds checking");
63 extern u_char dflt_font_16[];
64 extern u_char dflt_font_14[];
65 extern u_char dflt_font_8[];
67 static int ofwfb_configure(int flags);
69 static vi_probe_t ofwfb_probe;
70 static vi_init_t ofwfb_init;
71 static vi_get_info_t ofwfb_get_info;
72 static vi_query_mode_t ofwfb_query_mode;
73 static vi_set_mode_t ofwfb_set_mode;
74 static vi_save_font_t ofwfb_save_font;
75 static vi_load_font_t ofwfb_load_font;
76 static vi_show_font_t ofwfb_show_font;
77 static vi_save_palette_t ofwfb_save_palette;
78 static vi_load_palette_t ofwfb_load_palette;
79 static vi_set_border_t ofwfb_set_border;
80 static vi_save_state_t ofwfb_save_state;
81 static vi_load_state_t ofwfb_load_state;
82 static vi_set_win_org_t ofwfb_set_win_org;
83 static vi_read_hw_cursor_t ofwfb_read_hw_cursor;
84 static vi_set_hw_cursor_t ofwfb_set_hw_cursor;
85 static vi_set_hw_cursor_shape_t ofwfb_set_hw_cursor_shape;
86 static vi_blank_display_t ofwfb_blank_display;
87 static vi_mmap_t ofwfb_mmap;
88 static vi_ioctl_t ofwfb_ioctl;
89 static vi_clear_t ofwfb_clear;
90 static vi_fill_rect_t ofwfb_fill_rect;
91 static vi_bitblt_t ofwfb_bitblt;
92 static vi_diag_t ofwfb_diag;
93 static vi_save_cursor_palette_t ofwfb_save_cursor_palette;
94 static vi_load_cursor_palette_t ofwfb_load_cursor_palette;
95 static vi_copy_t ofwfb_copy;
96 static vi_putp_t ofwfb_putp;
97 static vi_putc_t ofwfb_putc;
98 static vi_puts_t ofwfb_puts;
99 static vi_putm_t ofwfb_putm;
101 static video_switch_t ofwfbvidsw = {
102 .probe = ofwfb_probe,
104 .get_info = ofwfb_get_info,
105 .query_mode = ofwfb_query_mode,
106 .set_mode = ofwfb_set_mode,
107 .save_font = ofwfb_save_font,
108 .load_font = ofwfb_load_font,
109 .show_font = ofwfb_show_font,
110 .save_palette = ofwfb_save_palette,
111 .load_palette = ofwfb_load_palette,
112 .set_border = ofwfb_set_border,
113 .save_state = ofwfb_save_state,
114 .load_state = ofwfb_load_state,
115 .set_win_org = ofwfb_set_win_org,
116 .read_hw_cursor = ofwfb_read_hw_cursor,
117 .set_hw_cursor = ofwfb_set_hw_cursor,
118 .set_hw_cursor_shape = ofwfb_set_hw_cursor_shape,
119 .blank_display = ofwfb_blank_display,
121 .ioctl = ofwfb_ioctl,
122 .clear = ofwfb_clear,
123 .fill_rect = ofwfb_fill_rect,
124 .bitblt = ofwfb_bitblt,
126 .save_cursor_palette = ofwfb_save_cursor_palette,
127 .load_cursor_palette = ofwfb_load_cursor_palette,
136 * bitmap depth-specific routines
138 static vi_blank_display_t ofwfb_blank_display8;
139 static vi_putc_t ofwfb_putc8;
140 static vi_putm_t ofwfb_putm8;
141 static vi_set_border_t ofwfb_set_border8;
143 static vi_blank_display_t ofwfb_blank_display32;
144 static vi_putc_t ofwfb_putc32;
145 static vi_putm_t ofwfb_putm32;
146 static vi_set_border_t ofwfb_set_border32;
148 VIDEO_DRIVER(ofwfb, ofwfbvidsw, ofwfb_configure);
150 extern sc_rndr_sw_t txtrndrsw;
151 RENDERER(ofwfb, 0, txtrndrsw, gfb_set);
153 RENDERER_MODULE(ofwfb, gfb_set);
156 * Define the iso6429-1983 colormap
162 } ofwfb_cmap[16] = { /* # R G B Color */
164 { 0x00, 0x00, 0x00 }, /* 0 0 0 0 Black */
165 { 0x00, 0x00, 0xaa }, /* 1 0 0 2/3 Blue */
166 { 0x00, 0xaa, 0x00 }, /* 2 0 2/3 0 Green */
167 { 0x00, 0xaa, 0xaa }, /* 3 0 2/3 2/3 Cyan */
168 { 0xaa, 0x00, 0x00 }, /* 4 2/3 0 0 Red */
169 { 0xaa, 0x00, 0xaa }, /* 5 2/3 0 2/3 Magenta */
170 { 0xaa, 0x55, 0x00 }, /* 6 2/3 1/3 0 Brown */
171 { 0xaa, 0xaa, 0xaa }, /* 7 2/3 2/3 2/3 White */
172 { 0x55, 0x55, 0x55 }, /* 8 1/3 1/3 1/3 Gray */
173 { 0x55, 0x55, 0xff }, /* 9 1/3 1/3 1 Bright Blue */
174 { 0x55, 0xff, 0x55 }, /* 10 1/3 1 1/3 Bright Green */
175 { 0x55, 0xff, 0xff }, /* 11 1/3 1 1 Bright Cyan */
176 { 0xff, 0x55, 0x55 }, /* 12 1 1/3 1/3 Bright Red */
177 { 0xff, 0x55, 0xff }, /* 13 1 1/3 1 Bright Magenta */
178 { 0xff, 0xff, 0x80 }, /* 14 1 1 1/3 Bright Yellow */
179 { 0xff, 0xff, 0xff } /* 15 1 1 1 Bright White */
182 #define TODO printf("%s: unimplemented\n", __func__)
184 static u_int16_t ofwfb_static_window[ROW*COL];
186 static struct ofwfb_softc ofwfb_softc;
189 ofwfb_background(uint8_t attr)
195 ofwfb_foreground(uint8_t attr)
197 return (attr & 0x0f);
201 ofwfb_pix32(int attr)
205 retval = (ofwfb_cmap[attr].blue << 16) |
206 (ofwfb_cmap[attr].green << 8) |
207 ofwfb_cmap[attr].red;
213 ofwfb_configure(int flags)
215 struct ofwfb_softc *sc;
227 TUNABLE_INT_FETCH("hw.syscons.disable", &disable);
237 chosen = OF_finddevice("/chosen");
238 OF_getprop(chosen, "stdout", &stdout, sizeof(stdout));
239 node = OF_instance_to_package(stdout);
242 * The "/chosen/stdout" does not exist try
243 * using "screen" directly.
245 node = OF_finddevice("screen");
247 OF_getprop(node, "device_type", type, sizeof(type));
248 if (strcmp(type, "display") != 0)
251 /* Only support 8 and 32-bit framebuffers */
252 OF_getprop(node, "depth", &depth, sizeof(depth));
254 sc->sc_blank = ofwfb_blank_display8;
255 sc->sc_putc = ofwfb_putc8;
256 sc->sc_putm = ofwfb_putm8;
257 sc->sc_set_border = ofwfb_set_border8;
258 } else if (depth == 32) {
259 sc->sc_blank = ofwfb_blank_display32;
260 sc->sc_putc = ofwfb_putc32;
261 sc->sc_putm = ofwfb_putm32;
262 sc->sc_set_border = ofwfb_set_border32;
266 sc->sc_depth = depth;
269 OF_getprop(node, "height", &sc->sc_height, sizeof(sc->sc_height));
270 OF_getprop(node, "width", &sc->sc_width, sizeof(sc->sc_width));
271 OF_getprop(node, "linebytes", &sc->sc_stride, sizeof(sc->sc_stride));
274 * Grab the physical address of the framebuffer, and then map it
275 * into our memory space. If the MMU is not yet up, it will be
276 * remapped for us when relocation turns on.
278 * XXX We assume #address-cells is 1 at this point.
280 OF_getprop(node, "address", &fb_phys, sizeof(fb_phys));
282 bus_space_map(&bs_be_tag, fb_phys, sc->sc_height * sc->sc_stride,
286 * Get the PCI addresses of the adapter. The node may be the
287 * child of the PCI device: in that case, try the parent for
288 * the assigned-addresses property.
290 len = OF_getprop(node, "assigned-addresses", sc->sc_pciaddrs,
291 sizeof(sc->sc_pciaddrs));
293 len = OF_getprop(OF_parent(node), "assigned-addresses",
294 sc->sc_pciaddrs, sizeof(sc->sc_pciaddrs));
298 sc->sc_num_pciaddrs = len / sizeof(struct ofw_pci_register);
301 ofwfb_init(0, &sc->sc_va, 0);
307 ofwfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
314 ofwfb_init(int unit, video_adapter_t *adp, int flags)
316 struct ofwfb_softc *sc;
321 sc = (struct ofwfb_softc *)adp;
324 vid_init_struct(adp, "ofwfb", -1, unit);
326 /* The default font size can be overridden by loader */
328 TUNABLE_INT_FETCH("hw.syscons.fsize", &font_height);
329 if (font_height == 8) {
330 sc->sc_font = dflt_font_8;
331 sc->sc_font_height = 8;
332 } else if (font_height == 14) {
333 sc->sc_font = dflt_font_14;
334 sc->sc_font_height = 14;
336 /* default is 8x16 */
337 sc->sc_font = dflt_font_16;
338 sc->sc_font_height = 16;
341 /* The user can set a border in chars - default is 1 char width */
343 TUNABLE_INT_FETCH("hw.syscons.border", &cborder);
345 vi->vi_cheight = sc->sc_font_height;
346 vi->vi_width = sc->sc_width/8 - 2*cborder;
347 vi->vi_height = sc->sc_height/sc->sc_font_height - 2*cborder;
351 * Clamp width/height to syscons maximums
353 if (vi->vi_width > COL)
355 if (vi->vi_height > ROW)
358 sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2;
359 sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight))/2;
362 * Avoid huge amounts of conditional code in syscons by
363 * defining a dummy h/w text display buffer.
365 adp->va_window = (vm_offset_t) ofwfb_static_window;
368 * Enable future font-loading and flag color support, as well as
369 * adding V_ADP_MODECHANGE so that we ofwfb_set_mode() gets called
370 * when the X server shuts down. This enables us to get the console
371 * back when X disappears.
373 adp->va_flags |= V_ADP_FONT | V_ADP_COLOR | V_ADP_MODECHANGE;
375 ofwfb_set_mode(&sc->sc_va, 0);
377 vid_register(&sc->sc_va);
383 ofwfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
385 bcopy(&adp->va_info, info, sizeof(*info));
390 ofwfb_query_mode(video_adapter_t *adp, video_info_t *info)
397 ofwfb_set_mode(video_adapter_t *adp, int mode)
399 struct ofwfb_softc *sc;
404 sc = (struct ofwfb_softc *)adp;
407 * Open the display device, which will initialize it.
410 memset(name, 0, sizeof(name));
411 OF_package_to_path(sc->sc_node, name, sizeof(name));
414 if (sc->sc_depth == 8) {
416 * Install the ISO6429 colormap - older OFW systems
417 * don't do this by default
419 for (i = 0; i < 16; i++) {
420 OF_call_method("color!", ih, 4, 1,
429 ofwfb_blank_display(&sc->sc_va, V_DISPLAY_ON);
435 ofwfb_save_font(video_adapter_t *adp, int page, int size, int width,
436 u_char *data, int c, int count)
443 ofwfb_load_font(video_adapter_t *adp, int page, int size, int width,
444 u_char *data, int c, int count)
446 struct ofwfb_softc *sc;
448 sc = (struct ofwfb_softc *)adp;
451 * syscons code has already determined that current width/height
452 * are unchanged for this new font
459 ofwfb_show_font(video_adapter_t *adp, int page)
466 ofwfb_save_palette(video_adapter_t *adp, u_char *palette)
473 ofwfb_load_palette(video_adapter_t *adp, u_char *palette)
480 ofwfb_set_border8(video_adapter_t *adp, int border)
482 struct ofwfb_softc *sc;
487 sc = (struct ofwfb_softc *)adp;
489 bground = ofwfb_background(border);
492 addr = (uint8_t *) sc->sc_addr;
493 for (i = 0; i < sc->sc_ymargin; i++) {
494 for (j = 0; j < sc->sc_width; j++) {
495 *(addr + j) = bground;
497 addr += sc->sc_stride;
501 addr = (uint8_t *) sc->sc_addr + (sc->sc_height - sc->sc_ymargin)*sc->sc_stride;
502 for (i = 0; i < sc->sc_ymargin; i++) {
503 for (j = 0; j < sc->sc_width; j++) {
504 *(addr + j) = bground;
506 addr += sc->sc_stride;
509 /* remaining left and right borders */
510 addr = (uint8_t *) sc->sc_addr + sc->sc_ymargin*sc->sc_stride;
511 for (i = 0; i < sc->sc_height - 2*sc->sc_xmargin; i++) {
512 for (j = 0; j < sc->sc_xmargin; j++) {
513 *(addr + j) = bground;
514 *(addr + j + sc->sc_width - sc->sc_xmargin) = bground;
516 addr += sc->sc_stride;
523 ofwfb_set_border32(video_adapter_t *adp, int border)
525 /* XXX Be lazy for now and blank entire screen */
526 return (ofwfb_blank_display32(adp, border));
530 ofwfb_set_border(video_adapter_t *adp, int border)
532 struct ofwfb_softc *sc;
534 sc = (struct ofwfb_softc *)adp;
536 return ((*sc->sc_set_border)(adp, border));
540 ofwfb_save_state(video_adapter_t *adp, void *p, size_t size)
547 ofwfb_load_state(video_adapter_t *adp, void *p)
554 ofwfb_set_win_org(video_adapter_t *adp, off_t offset)
561 ofwfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
570 ofwfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
577 ofwfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
578 int celsize, int blink)
584 ofwfb_blank_display8(video_adapter_t *adp, int mode)
586 struct ofwfb_softc *sc;
590 sc = (struct ofwfb_softc *)adp;
591 addr = (uint8_t *) sc->sc_addr;
593 /* Could be done a lot faster e.g. 32-bits, or Altivec'd */
594 for (i = 0; i < sc->sc_stride*sc->sc_height; i++)
595 *(addr + i) = ofwfb_background(SC_NORM_ATTR);
601 ofwfb_blank_display32(video_adapter_t *adp, int mode)
603 struct ofwfb_softc *sc;
607 sc = (struct ofwfb_softc *)adp;
608 addr = (uint32_t *) sc->sc_addr;
610 for (i = 0; i < (sc->sc_stride/4)*sc->sc_height; i++)
611 *(addr + i) = ofwfb_pix32(ofwfb_background(SC_NORM_ATTR));
617 ofwfb_blank_display(video_adapter_t *adp, int mode)
619 struct ofwfb_softc *sc;
621 sc = (struct ofwfb_softc *)adp;
623 return ((*sc->sc_blank)(adp, mode));
627 ofwfb_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr,
630 struct ofwfb_softc *sc;
633 sc = (struct ofwfb_softc *)adp;
635 if (sc->sc_num_pciaddrs == 0)
641 if (ofwfb_ignore_mmap_checks) {
647 * Make sure the requested address lies within the PCI device's assigned addrs
649 for (i = 0; i < sc->sc_num_pciaddrs; i++)
650 if (offset >= sc->sc_pciaddrs[i].phys_lo &&
651 offset < (sc->sc_pciaddrs[i].phys_lo + sc->sc_pciaddrs[i].size_lo)) {
657 * This might be a legacy VGA mem request: if so, just point it at the
658 * framebuffer, since it shouldn't be touched
660 if (offset < sc->sc_stride*sc->sc_height) {
661 *paddr = sc->sc_addr + offset;
669 ofwfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
676 ofwfb_clear(video_adapter_t *adp)
683 ofwfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
690 ofwfb_bitblt(video_adapter_t *adp, ...)
697 ofwfb_diag(video_adapter_t *adp, int level)
704 ofwfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
711 ofwfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
718 ofwfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
725 ofwfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
726 int size, int bpp, int bit_ltor, int byte_ltor)
733 ofwfb_putc8(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
735 struct ofwfb_softc *sc;
747 sc = (struct ofwfb_softc *)adp;
748 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
749 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
750 p = sc->sc_font + c*sc->sc_font_height;
751 addr = (u_int32_t *)((int)sc->sc_addr
752 + (row + sc->sc_ymargin)*sc->sc_stride
753 + col + sc->sc_xmargin);
755 fg = ofwfb_foreground(a);
756 bg = ofwfb_background(a);
758 for (i = 0; i < sc->sc_font_height; i++) {
762 * Assume that there is more background than foreground
763 * in characters and init accordingly
765 ch1.l = ch2.l = (bg << 24) | (bg << 16) | (bg << 8) | bg;
768 * Calculate 2 x 4-chars at a time, and then
771 if (fline & 0x80) ch1.c[0] = fg;
772 if (fline & 0x40) ch1.c[1] = fg;
773 if (fline & 0x20) ch1.c[2] = fg;
774 if (fline & 0x10) ch1.c[3] = fg;
776 if (fline & 0x08) ch2.c[0] = fg;
777 if (fline & 0x04) ch2.c[1] = fg;
778 if (fline & 0x02) ch2.c[2] = fg;
779 if (fline & 0x01) ch2.c[3] = fg;
783 addr += (sc->sc_stride / sizeof(u_int32_t));
790 ofwfb_putc32(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
792 struct ofwfb_softc *sc;
799 sc = (struct ofwfb_softc *)adp;
800 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
801 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
802 p = sc->sc_font + c*sc->sc_font_height;
803 addr = (uint32_t *)sc->sc_addr
804 + (row + sc->sc_ymargin)*(sc->sc_stride/4)
805 + col + sc->sc_xmargin;
807 for (i = 0; i < sc->sc_font_height; i++) {
808 for (j = 0, k = 7; j < 8; j++, k--) {
809 if ((p[i] & (1 << k)) == 0)
810 *(addr + j) = ofwfb_pix32(ofwfb_background(a));
812 *(addr + j) = ofwfb_pix32(ofwfb_foreground(a));
814 addr += (sc->sc_stride/4);
821 ofwfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
823 struct ofwfb_softc *sc;
825 sc = (struct ofwfb_softc *)adp;
827 return ((*sc->sc_putc)(adp, off, c, a));
831 ofwfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
835 for (i = 0; i < len; i++) {
836 ofwfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
842 ofwfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
843 uint32_t pixel_mask, int size, int width)
845 struct ofwfb_softc *sc;
847 sc = (struct ofwfb_softc *)adp;
849 return ((*sc->sc_putm)(adp, x, y, pixel_image, pixel_mask, size,
854 ofwfb_putm8(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
855 uint32_t pixel_mask, int size, int width)
857 struct ofwfb_softc *sc;
867 sc = (struct ofwfb_softc *)adp;
868 addr = (u_int32_t *)((int)sc->sc_addr
869 + (y + sc->sc_ymargin)*sc->sc_stride
870 + x + sc->sc_xmargin);
872 fg = ofwfb_foreground(SC_NORM_ATTR);
873 bg = ofwfb_background(SC_NORM_ATTR);
875 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) {
877 * Use the current values for the line
883 * Calculate 2 x 4-chars at a time, and then
886 for (j = 0, k = width; j < 8; j++, k--) {
887 if (x + j >= sc->sc_width - 2*sc->sc_xmargin)
890 if (pixel_image[i] & (1 << k))
891 ch.c[j] = (ch.c[j] == fg) ? bg : fg;
896 addr += (sc->sc_stride / sizeof(u_int32_t));
903 ofwfb_putm32(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
904 uint32_t pixel_mask, int size, int width)
906 struct ofwfb_softc *sc;
911 sc = (struct ofwfb_softc *)adp;
912 addr = (uint32_t *)sc->sc_addr
913 + (y + sc->sc_ymargin)*(sc->sc_stride/4)
914 + x + sc->sc_xmargin;
916 fg = ofwfb_pix32(ofwfb_foreground(SC_NORM_ATTR));
917 bg = ofwfb_pix32(ofwfb_background(SC_NORM_ATTR));
919 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) {
920 for (j = 0, k = width; j < 8; j++, k--) {
921 if (x + j >= sc->sc_width - 2*sc->sc_xmargin)
924 if (pixel_image[i] & (1 << k))
925 *(addr + j) = (*(addr + j) == fg) ? bg : fg;
927 addr += (sc->sc_stride/4);
934 * Define the syscons nexus device attachment
937 ofwfb_scidentify(driver_t *driver, device_t parent)
942 * Add with a priority guaranteed to make it last on
945 child = BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0);
949 ofwfb_scprobe(device_t dev)
953 device_set_desc(dev, "System console");
955 error = sc_probe_unit(device_get_unit(dev),
956 device_get_flags(dev) | SC_AUTODETECT_KBD);
960 /* This is a fake device, so make sure we added it ourselves */
961 return (BUS_PROBE_NOWILDCARD);
965 ofwfb_scattach(device_t dev)
967 return (sc_attach_unit(device_get_unit(dev),
968 device_get_flags(dev) | SC_AUTODETECT_KBD));
971 static device_method_t ofwfb_sc_methods[] = {
972 DEVMETHOD(device_identify, ofwfb_scidentify),
973 DEVMETHOD(device_probe, ofwfb_scprobe),
974 DEVMETHOD(device_attach, ofwfb_scattach),
978 static driver_t ofwfb_sc_driver = {
984 static devclass_t sc_devclass;
986 DRIVER_MODULE(sc, nexus, ofwfb_sc_driver, sc_devclass, 0, 0);
989 * Define a stub keyboard driver in case one hasn't been
990 * compiled into the kernel
992 #include <sys/kbio.h>
993 #include <dev/kbd/kbdreg.h>
995 static int dummy_kbd_configure(int flags);
997 keyboard_switch_t dummysw;
1000 dummy_kbd_configure(int flags)
1005 KEYBOARD_DRIVER(dummy, dummysw, dummy_kbd_configure);
1008 * Utility routines from <dev/fb/fbreg.h>
1011 ofwfb_bcopy(const void *s, void *d, size_t c)
1017 ofwfb_bzero(void *d, size_t c)
1023 ofwfb_fillw(int pat, void *base, size_t cnt)
1025 u_int16_t *bptr = base;
1032 ofwfb_readw(u_int16_t *addr)
1038 ofwfb_writew(u_int16_t *addr, u_int16_t val)