2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2003 Peter Grehan
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/module.h>
36 #include <sys/kernel.h>
37 #include <sys/sysctl.h>
38 #include <sys/limits.h>
42 #include <sys/fcntl.h>
43 #include <sys/malloc.h>
45 #include <sys/consio.h>
47 #include <machine/bus.h>
48 #include <machine/sc_machdep.h>
49 #include <machine/vm.h>
53 #include <dev/fb/fbreg.h>
54 #include <dev/syscons/syscons.h>
56 #include <dev/ofw/openfirm.h>
57 #include <dev/ofw/ofw_bus.h>
58 #include <dev/ofw/ofw_pci.h>
59 #include <powerpc/ofw/ofw_syscons.h>
61 static int ofwfb_ignore_mmap_checks = 1;
62 static int ofwfb_reset_on_switch = 1;
63 static SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD, 0, "ofwfb");
64 SYSCTL_INT(_hw_ofwfb, OID_AUTO, relax_mmap, CTLFLAG_RW,
65 &ofwfb_ignore_mmap_checks, 0, "relaxed mmap bounds checking");
66 SYSCTL_INT(_hw_ofwfb, OID_AUTO, reset_on_mode_switch, CTLFLAG_RW,
67 &ofwfb_reset_on_switch, 0, "reset the framebuffer driver on mode switch");
69 extern u_char dflt_font_16[];
70 extern u_char dflt_font_14[];
71 extern u_char dflt_font_8[];
73 static int ofwfb_configure(int flags);
75 static vi_probe_t ofwfb_probe;
76 static vi_init_t ofwfb_init;
77 static vi_get_info_t ofwfb_get_info;
78 static vi_query_mode_t ofwfb_query_mode;
79 static vi_set_mode_t ofwfb_set_mode;
80 static vi_save_font_t ofwfb_save_font;
81 static vi_load_font_t ofwfb_load_font;
82 static vi_show_font_t ofwfb_show_font;
83 static vi_save_palette_t ofwfb_save_palette;
84 static vi_load_palette_t ofwfb_load_palette;
85 static vi_set_border_t ofwfb_set_border;
86 static vi_save_state_t ofwfb_save_state;
87 static vi_load_state_t ofwfb_load_state;
88 static vi_set_win_org_t ofwfb_set_win_org;
89 static vi_read_hw_cursor_t ofwfb_read_hw_cursor;
90 static vi_set_hw_cursor_t ofwfb_set_hw_cursor;
91 static vi_set_hw_cursor_shape_t ofwfb_set_hw_cursor_shape;
92 static vi_blank_display_t ofwfb_blank_display;
93 static vi_mmap_t ofwfb_mmap;
94 static vi_ioctl_t ofwfb_ioctl;
95 static vi_clear_t ofwfb_clear;
96 static vi_fill_rect_t ofwfb_fill_rect;
97 static vi_bitblt_t ofwfb_bitblt;
98 static vi_diag_t ofwfb_diag;
99 static vi_save_cursor_palette_t ofwfb_save_cursor_palette;
100 static vi_load_cursor_palette_t ofwfb_load_cursor_palette;
101 static vi_copy_t ofwfb_copy;
102 static vi_putp_t ofwfb_putp;
103 static vi_putc_t ofwfb_putc;
104 static vi_puts_t ofwfb_puts;
105 static vi_putm_t ofwfb_putm;
107 static video_switch_t ofwfbvidsw = {
108 .probe = ofwfb_probe,
110 .get_info = ofwfb_get_info,
111 .query_mode = ofwfb_query_mode,
112 .set_mode = ofwfb_set_mode,
113 .save_font = ofwfb_save_font,
114 .load_font = ofwfb_load_font,
115 .show_font = ofwfb_show_font,
116 .save_palette = ofwfb_save_palette,
117 .load_palette = ofwfb_load_palette,
118 .set_border = ofwfb_set_border,
119 .save_state = ofwfb_save_state,
120 .load_state = ofwfb_load_state,
121 .set_win_org = ofwfb_set_win_org,
122 .read_hw_cursor = ofwfb_read_hw_cursor,
123 .set_hw_cursor = ofwfb_set_hw_cursor,
124 .set_hw_cursor_shape = ofwfb_set_hw_cursor_shape,
125 .blank_display = ofwfb_blank_display,
127 .ioctl = ofwfb_ioctl,
128 .clear = ofwfb_clear,
129 .fill_rect = ofwfb_fill_rect,
130 .bitblt = ofwfb_bitblt,
132 .save_cursor_palette = ofwfb_save_cursor_palette,
133 .load_cursor_palette = ofwfb_load_cursor_palette,
142 * bitmap depth-specific routines
144 static vi_blank_display_t ofwfb_blank_display8;
145 static vi_putc_t ofwfb_putc8;
146 static vi_putm_t ofwfb_putm8;
147 static vi_set_border_t ofwfb_set_border8;
149 static vi_blank_display_t ofwfb_blank_display32;
150 static vi_putc_t ofwfb_putc32;
151 static vi_putm_t ofwfb_putm32;
152 static vi_set_border_t ofwfb_set_border32;
154 VIDEO_DRIVER(ofwfb, ofwfbvidsw, ofwfb_configure);
156 extern sc_rndr_sw_t txtrndrsw;
157 RENDERER(ofwfb, 0, txtrndrsw, gfb_set);
159 RENDERER_MODULE(ofwfb, gfb_set);
162 * Define the iso6429-1983 colormap
168 } ofwfb_cmap[16] = { /* # R G B Color */
170 { 0x00, 0x00, 0x00 }, /* 0 0 0 0 Black */
171 { 0x00, 0x00, 0xaa }, /* 1 0 0 2/3 Blue */
172 { 0x00, 0xaa, 0x00 }, /* 2 0 2/3 0 Green */
173 { 0x00, 0xaa, 0xaa }, /* 3 0 2/3 2/3 Cyan */
174 { 0xaa, 0x00, 0x00 }, /* 4 2/3 0 0 Red */
175 { 0xaa, 0x00, 0xaa }, /* 5 2/3 0 2/3 Magenta */
176 { 0xaa, 0x55, 0x00 }, /* 6 2/3 1/3 0 Brown */
177 { 0xaa, 0xaa, 0xaa }, /* 7 2/3 2/3 2/3 White */
178 { 0x55, 0x55, 0x55 }, /* 8 1/3 1/3 1/3 Gray */
179 { 0x55, 0x55, 0xff }, /* 9 1/3 1/3 1 Bright Blue */
180 { 0x55, 0xff, 0x55 }, /* 10 1/3 1 1/3 Bright Green */
181 { 0x55, 0xff, 0xff }, /* 11 1/3 1 1 Bright Cyan */
182 { 0xff, 0x55, 0x55 }, /* 12 1 1/3 1/3 Bright Red */
183 { 0xff, 0x55, 0xff }, /* 13 1 1/3 1 Bright Magenta */
184 { 0xff, 0xff, 0x80 }, /* 14 1 1 1/3 Bright Yellow */
185 { 0xff, 0xff, 0xff } /* 15 1 1 1 Bright White */
188 #define TODO printf("%s: unimplemented\n", __func__)
190 static u_int16_t ofwfb_static_window[ROW*COL];
192 static struct ofwfb_softc ofwfb_softc;
195 ofwfb_background(uint8_t attr)
201 ofwfb_foreground(uint8_t attr)
203 return (attr & 0x0f);
207 ofwfb_pix32(struct ofwfb_softc *sc, int attr)
211 if (sc->sc_tag == &bs_le_tag)
212 retval = (ofwfb_cmap[attr].red << 16) |
213 (ofwfb_cmap[attr].green << 8) |
214 ofwfb_cmap[attr].blue;
216 retval = (ofwfb_cmap[attr].blue << 16) |
217 (ofwfb_cmap[attr].green << 8) |
218 ofwfb_cmap[attr].red;
224 ofwfb_configure(int flags)
226 struct ofwfb_softc *sc;
239 TUNABLE_INT_FETCH("hw.syscons.disable", &disable);
249 chosen = OF_finddevice("/chosen");
250 OF_getprop(chosen, "stdout", &stdout, sizeof(stdout));
251 node = OF_instance_to_package(stdout);
254 * The "/chosen/stdout" does not exist try
255 * using "screen" directly.
257 node = OF_finddevice("screen");
259 OF_getprop(node, "device_type", type, sizeof(type));
260 if (strcmp(type, "display") != 0)
263 /* Only support 8 and 32-bit framebuffers */
264 OF_getprop(node, "depth", &depth, sizeof(depth));
266 sc->sc_blank = ofwfb_blank_display8;
267 sc->sc_putc = ofwfb_putc8;
268 sc->sc_putm = ofwfb_putm8;
269 sc->sc_set_border = ofwfb_set_border8;
270 } else if (depth == 32) {
271 sc->sc_blank = ofwfb_blank_display32;
272 sc->sc_putc = ofwfb_putc32;
273 sc->sc_putm = ofwfb_putm32;
274 sc->sc_set_border = ofwfb_set_border32;
278 if (OF_getproplen(node, "height") != sizeof(sc->sc_height) ||
279 OF_getproplen(node, "width") != sizeof(sc->sc_width) ||
280 OF_getproplen(node, "linebytes") != sizeof(sc->sc_stride))
283 sc->sc_depth = depth;
286 OF_getprop(node, "height", &sc->sc_height, sizeof(sc->sc_height));
287 OF_getprop(node, "width", &sc->sc_width, sizeof(sc->sc_width));
288 OF_getprop(node, "linebytes", &sc->sc_stride, sizeof(sc->sc_stride));
291 * Get the PCI addresses of the adapter. The node may be the
292 * child of the PCI device: in that case, try the parent for
293 * the assigned-addresses property.
295 len = OF_getprop(node, "assigned-addresses", sc->sc_pciaddrs,
296 sizeof(sc->sc_pciaddrs));
298 len = OF_getprop(OF_parent(node), "assigned-addresses",
299 sc->sc_pciaddrs, sizeof(sc->sc_pciaddrs));
303 sc->sc_num_pciaddrs = len / sizeof(struct ofw_pci_register);
306 * Grab the physical address of the framebuffer, and then map it
307 * into our memory space. If the MMU is not yet up, it will be
308 * remapped for us when relocation turns on.
310 * XXX We assume #address-cells is 1 at this point.
312 if (OF_getproplen(node, "address") == sizeof(fb_phys)) {
313 OF_getprop(node, "address", &fb_phys, sizeof(fb_phys));
314 sc->sc_tag = &bs_be_tag;
315 bus_space_map(sc->sc_tag, fb_phys, sc->sc_height *
316 sc->sc_stride, BUS_SPACE_MAP_PREFETCHABLE, &sc->sc_addr);
319 * Some IBM systems don't have an address property. Try to
320 * guess the framebuffer region from the assigned addresses.
321 * This is ugly, but there doesn't seem to be an alternative.
322 * Linux does the same thing.
325 fb_phys = sc->sc_num_pciaddrs;
326 for (i = 0; i < sc->sc_num_pciaddrs; i++) {
327 /* If it is too small, not the framebuffer */
328 if (sc->sc_pciaddrs[i].size_lo <
329 sc->sc_stride*sc->sc_height)
331 /* If it is not memory, it isn't either */
332 if (!(sc->sc_pciaddrs[i].phys_hi &
333 OFW_PCI_PHYS_HI_SPACE_MEM32))
336 /* This could be the framebuffer */
339 /* If it is prefetchable, it certainly is */
340 if (sc->sc_pciaddrs[i].phys_hi &
341 OFW_PCI_PHYS_HI_PREFETCHABLE)
344 if (fb_phys == sc->sc_num_pciaddrs)
347 OF_decode_addr(node, fb_phys, &sc->sc_tag, &sc->sc_addr, NULL);
350 ofwfb_init(0, &sc->sc_va, 0);
356 ofwfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
363 ofwfb_init(int unit, video_adapter_t *adp, int flags)
365 struct ofwfb_softc *sc;
370 sc = (struct ofwfb_softc *)adp;
373 vid_init_struct(adp, "ofwfb", -1, unit);
375 /* The default font size can be overridden by loader */
377 TUNABLE_INT_FETCH("hw.syscons.fsize", &font_height);
378 if (font_height == 8) {
379 sc->sc_font = dflt_font_8;
380 sc->sc_font_height = 8;
381 } else if (font_height == 14) {
382 sc->sc_font = dflt_font_14;
383 sc->sc_font_height = 14;
385 /* default is 8x16 */
386 sc->sc_font = dflt_font_16;
387 sc->sc_font_height = 16;
390 /* The user can set a border in chars - default is 1 char width */
392 TUNABLE_INT_FETCH("hw.syscons.border", &cborder);
394 vi->vi_cheight = sc->sc_font_height;
395 vi->vi_width = sc->sc_width/8 - 2*cborder;
396 vi->vi_height = sc->sc_height/sc->sc_font_height - 2*cborder;
400 * Clamp width/height to syscons maximums
402 if (vi->vi_width > COL)
404 if (vi->vi_height > ROW)
407 sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2;
408 sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight))/2;
411 * Avoid huge amounts of conditional code in syscons by
412 * defining a dummy h/w text display buffer.
414 adp->va_window = (vm_offset_t) ofwfb_static_window;
417 * Enable future font-loading and flag color support, as well as
418 * adding V_ADP_MODECHANGE so that we ofwfb_set_mode() gets called
419 * when the X server shuts down. This enables us to get the console
420 * back when X disappears.
422 adp->va_flags |= V_ADP_FONT | V_ADP_COLOR | V_ADP_MODECHANGE;
424 ofwfb_set_mode(&sc->sc_va, 0);
426 vid_register(&sc->sc_va);
432 ofwfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
434 bcopy(&adp->va_info, info, sizeof(*info));
439 ofwfb_query_mode(video_adapter_t *adp, video_info_t *info)
446 ofwfb_set_mode(video_adapter_t *adp, int mode)
448 struct ofwfb_softc *sc;
453 sc = (struct ofwfb_softc *)adp;
455 if (ofwfb_reset_on_switch) {
457 * Open the display device, which will initialize it.
460 memset(name, 0, sizeof(name));
461 OF_package_to_path(sc->sc_node, name, sizeof(name));
464 if (sc->sc_depth == 8) {
466 * Install the ISO6429 colormap - older OFW systems
467 * don't do this by default
469 for (i = 0; i < 16; i++) {
470 OF_call_method("color!", ih, 4, 1,
480 ofwfb_blank_display(&sc->sc_va, V_DISPLAY_ON);
486 ofwfb_save_font(video_adapter_t *adp, int page, int size, int width,
487 u_char *data, int c, int count)
494 ofwfb_load_font(video_adapter_t *adp, int page, int size, int width,
495 u_char *data, int c, int count)
497 struct ofwfb_softc *sc;
499 sc = (struct ofwfb_softc *)adp;
502 * syscons code has already determined that current width/height
503 * are unchanged for this new font
510 ofwfb_show_font(video_adapter_t *adp, int page)
517 ofwfb_save_palette(video_adapter_t *adp, u_char *palette)
524 ofwfb_load_palette(video_adapter_t *adp, u_char *palette)
531 ofwfb_set_border8(video_adapter_t *adp, int border)
533 struct ofwfb_softc *sc;
538 sc = (struct ofwfb_softc *)adp;
540 bground = ofwfb_background(border);
543 addr = (uint8_t *) sc->sc_addr;
544 for (i = 0; i < sc->sc_ymargin; i++) {
545 for (j = 0; j < sc->sc_width; j++) {
546 *(addr + j) = bground;
548 addr += sc->sc_stride;
552 addr = (uint8_t *) sc->sc_addr + (sc->sc_height - sc->sc_ymargin)*sc->sc_stride;
553 for (i = 0; i < sc->sc_ymargin; i++) {
554 for (j = 0; j < sc->sc_width; j++) {
555 *(addr + j) = bground;
557 addr += sc->sc_stride;
560 /* remaining left and right borders */
561 addr = (uint8_t *) sc->sc_addr + sc->sc_ymargin*sc->sc_stride;
562 for (i = 0; i < sc->sc_height - 2*sc->sc_xmargin; i++) {
563 for (j = 0; j < sc->sc_xmargin; j++) {
564 *(addr + j) = bground;
565 *(addr + j + sc->sc_width - sc->sc_xmargin) = bground;
567 addr += sc->sc_stride;
574 ofwfb_set_border32(video_adapter_t *adp, int border)
576 /* XXX Be lazy for now and blank entire screen */
577 return (ofwfb_blank_display32(adp, border));
581 ofwfb_set_border(video_adapter_t *adp, int border)
583 struct ofwfb_softc *sc;
585 sc = (struct ofwfb_softc *)adp;
587 return ((*sc->sc_set_border)(adp, border));
591 ofwfb_save_state(video_adapter_t *adp, void *p, size_t size)
598 ofwfb_load_state(video_adapter_t *adp, void *p)
605 ofwfb_set_win_org(video_adapter_t *adp, off_t offset)
612 ofwfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
621 ofwfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
628 ofwfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
629 int celsize, int blink)
635 ofwfb_blank_display8(video_adapter_t *adp, int mode)
637 struct ofwfb_softc *sc;
643 sc = (struct ofwfb_softc *)adp;
644 addr = (uint32_t *) sc->sc_addr;
645 end = (sc->sc_stride/4) * sc->sc_height;
647 /* Splat 4 pixels at once. */
648 color = (ofwfb_background(SC_NORM_ATTR) << 24) |
649 (ofwfb_background(SC_NORM_ATTR) << 16) |
650 (ofwfb_background(SC_NORM_ATTR) << 8) |
651 (ofwfb_background(SC_NORM_ATTR));
653 for (i = 0; i < end; i++)
660 ofwfb_blank_display32(video_adapter_t *adp, int mode)
662 struct ofwfb_softc *sc;
664 uint32_t *addr, blank;
666 sc = (struct ofwfb_softc *)adp;
667 addr = (uint32_t *) sc->sc_addr;
668 blank = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR));
670 for (i = 0; i < (sc->sc_stride/4)*sc->sc_height; i++)
677 ofwfb_blank_display(video_adapter_t *adp, int mode)
679 struct ofwfb_softc *sc;
681 sc = (struct ofwfb_softc *)adp;
683 return ((*sc->sc_blank)(adp, mode));
687 ofwfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
688 int prot, vm_memattr_t *memattr)
690 struct ofwfb_softc *sc;
693 sc = (struct ofwfb_softc *)adp;
696 * Make sure the requested address lies within the PCI device's
699 for (i = 0; i < sc->sc_num_pciaddrs; i++)
700 if (offset >= sc->sc_pciaddrs[i].phys_lo &&
701 offset < (sc->sc_pciaddrs[i].phys_lo + sc->sc_pciaddrs[i].size_lo))
704 * If this is a prefetchable BAR, we can (and should)
705 * enable write-combining.
707 if (sc->sc_pciaddrs[i].phys_hi &
708 OFW_PCI_PHYS_HI_PREFETCHABLE)
709 *memattr = VM_MEMATTR_WRITE_COMBINING;
718 if (ofwfb_ignore_mmap_checks) {
724 * This might be a legacy VGA mem request: if so, just point it at the
725 * framebuffer, since it shouldn't be touched
727 if (offset < sc->sc_stride*sc->sc_height) {
728 *paddr = sc->sc_addr + offset;
733 * Error if we didn't have a better idea.
735 if (sc->sc_num_pciaddrs == 0)
742 ofwfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
749 ofwfb_clear(video_adapter_t *adp)
756 ofwfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
763 ofwfb_bitblt(video_adapter_t *adp, ...)
770 ofwfb_diag(video_adapter_t *adp, int level)
777 ofwfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
784 ofwfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
791 ofwfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
798 ofwfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
799 int size, int bpp, int bit_ltor, int byte_ltor)
806 ofwfb_putc8(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
808 struct ofwfb_softc *sc;
820 sc = (struct ofwfb_softc *)adp;
821 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
822 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
823 p = sc->sc_font + c*sc->sc_font_height;
824 addr = (u_int32_t *)((uintptr_t)sc->sc_addr
825 + (row + sc->sc_ymargin)*sc->sc_stride
826 + col + sc->sc_xmargin);
828 fg = ofwfb_foreground(a);
829 bg = ofwfb_background(a);
831 for (i = 0; i < sc->sc_font_height; i++) {
835 * Assume that there is more background than foreground
836 * in characters and init accordingly
838 ch1.l = ch2.l = (bg << 24) | (bg << 16) | (bg << 8) | bg;
841 * Calculate 2 x 4-chars at a time, and then
844 if (fline & 0x80) ch1.c[0] = fg;
845 if (fline & 0x40) ch1.c[1] = fg;
846 if (fline & 0x20) ch1.c[2] = fg;
847 if (fline & 0x10) ch1.c[3] = fg;
849 if (fline & 0x08) ch2.c[0] = fg;
850 if (fline & 0x04) ch2.c[1] = fg;
851 if (fline & 0x02) ch2.c[2] = fg;
852 if (fline & 0x01) ch2.c[3] = fg;
856 addr += (sc->sc_stride / sizeof(u_int32_t));
863 ofwfb_putc32(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
865 struct ofwfb_softc *sc;
869 uint32_t *addr, fg, bg;
872 sc = (struct ofwfb_softc *)adp;
873 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
874 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
875 p = sc->sc_font + c*sc->sc_font_height;
876 addr = (uint32_t *)sc->sc_addr
877 + (row + sc->sc_ymargin)*(sc->sc_stride/4)
878 + col + sc->sc_xmargin;
880 fg = ofwfb_pix32(sc, ofwfb_foreground(a));
881 bg = ofwfb_pix32(sc, ofwfb_background(a));
883 for (i = 0; i < sc->sc_font_height; i++) {
884 for (j = 0, k = 7; j < 8; j++, k--) {
885 if ((p[i] & (1 << k)) == 0)
890 addr += (sc->sc_stride/4);
897 ofwfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
899 struct ofwfb_softc *sc;
901 sc = (struct ofwfb_softc *)adp;
903 return ((*sc->sc_putc)(adp, off, c, a));
907 ofwfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
911 for (i = 0; i < len; i++) {
912 ofwfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
918 ofwfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
919 uint32_t pixel_mask, int size, int width)
921 struct ofwfb_softc *sc;
923 sc = (struct ofwfb_softc *)adp;
925 return ((*sc->sc_putm)(adp, x, y, pixel_image, pixel_mask, size,
930 ofwfb_putm8(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
931 uint32_t pixel_mask, int size, int width)
933 struct ofwfb_softc *sc;
938 sc = (struct ofwfb_softc *)adp;
939 addr = (u_int8_t *)((uintptr_t)sc->sc_addr
940 + (y + sc->sc_ymargin)*sc->sc_stride
941 + x + sc->sc_xmargin);
943 fg = ofwfb_foreground(SC_NORM_ATTR);
944 bg = ofwfb_background(SC_NORM_ATTR);
946 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) {
948 * Calculate 2 x 4-chars at a time, and then
951 for (j = 0, k = width; j < 8; j++, k--) {
952 if (x + j >= sc->sc_width - 2*sc->sc_xmargin)
955 if (pixel_image[i] & (1 << k))
956 addr[j] = (addr[j] == fg) ? bg : fg;
959 addr += (sc->sc_stride / sizeof(u_int8_t));
966 ofwfb_putm32(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
967 uint32_t pixel_mask, int size, int width)
969 struct ofwfb_softc *sc;
974 sc = (struct ofwfb_softc *)adp;
975 addr = (uint32_t *)sc->sc_addr
976 + (y + sc->sc_ymargin)*(sc->sc_stride/4)
977 + x + sc->sc_xmargin;
979 fg = ofwfb_pix32(sc, ofwfb_foreground(SC_NORM_ATTR));
980 bg = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR));
982 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) {
983 for (j = 0, k = width; j < 8; j++, k--) {
984 if (x + j >= sc->sc_width - 2*sc->sc_xmargin)
987 if (pixel_image[i] & (1 << k))
988 *(addr + j) = (*(addr + j) == fg) ? bg : fg;
990 addr += (sc->sc_stride/4);
997 * Define the syscons nexus device attachment
1000 ofwfb_scidentify(driver_t *driver, device_t parent)
1005 * Add with a priority guaranteed to make it last on
1008 child = BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0);
1012 ofwfb_scprobe(device_t dev)
1016 device_set_desc(dev, "System console");
1018 error = sc_probe_unit(device_get_unit(dev),
1019 device_get_flags(dev) | SC_AUTODETECT_KBD);
1023 /* This is a fake device, so make sure we added it ourselves */
1024 return (BUS_PROBE_NOWILDCARD);
1028 ofwfb_scattach(device_t dev)
1030 return (sc_attach_unit(device_get_unit(dev),
1031 device_get_flags(dev) | SC_AUTODETECT_KBD));
1034 static device_method_t ofwfb_sc_methods[] = {
1035 DEVMETHOD(device_identify, ofwfb_scidentify),
1036 DEVMETHOD(device_probe, ofwfb_scprobe),
1037 DEVMETHOD(device_attach, ofwfb_scattach),
1041 static driver_t ofwfb_sc_driver = {
1047 static devclass_t sc_devclass;
1049 DRIVER_MODULE(ofwfb, nexus, ofwfb_sc_driver, sc_devclass, 0, 0);
1052 * Define a stub keyboard driver in case one hasn't been
1053 * compiled into the kernel
1055 #include <sys/kbio.h>
1056 #include <dev/kbd/kbdreg.h>
1058 static int dummy_kbd_configure(int flags);
1060 keyboard_switch_t dummysw;
1063 dummy_kbd_configure(int flags)
1068 KEYBOARD_DRIVER(dummy, dummysw, dummy_kbd_configure);
1071 * Utility routines from <dev/fb/fbreg.h>
1074 ofwfb_bcopy(const void *s, void *d, size_t c)
1080 ofwfb_bzero(void *d, size_t c)
1086 ofwfb_fillw(int pat, void *base, size_t cnt)
1088 u_int16_t *bptr = base;
1095 ofwfb_readw(u_int16_t *addr)
1101 ofwfb_writew(u_int16_t *addr, u_int16_t val)