2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2013 Oleksandr Tymoshenko <gonzo@freebsd.org>
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
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
32 #include <sys/systm.h>
35 #include <sys/endian.h>
36 #include <sys/kernel.h>
38 #include <sys/malloc.h>
39 #include <sys/module.h>
40 #include <sys/mutex.h>
41 #include <sys/resource.h>
44 #include <sys/consio.h>
48 #include <machine/bus.h>
49 #include <machine/resource.h>
50 #include <machine/intr.h>
52 #include <dev/ofw/ofw_bus.h>
53 #include <dev/ofw/ofw_bus_subr.h>
55 #include <dev/fb/fbreg.h>
56 #include <dev/syscons/syscons.h>
58 #include "am335x_lcd.h"
60 struct video_adapter_softc {
61 /* Videoadpater part */
88 static struct argb am335x_syscons_palette[16] = {
89 {0x00, 0x00, 0x00, 0x00},
90 {0x00, 0x00, 0x00, 0xaa},
91 {0x00, 0x00, 0xaa, 0x00},
92 {0x00, 0x00, 0xaa, 0xaa},
93 {0x00, 0xaa, 0x00, 0x00},
94 {0x00, 0xaa, 0x00, 0xaa},
95 {0x00, 0xaa, 0x55, 0x00},
96 {0x00, 0xaa, 0xaa, 0xaa},
97 {0x00, 0x55, 0x55, 0x55},
98 {0x00, 0x55, 0x55, 0xff},
99 {0x00, 0x55, 0xff, 0x55},
100 {0x00, 0x55, 0xff, 0xff},
101 {0x00, 0xff, 0x55, 0x55},
102 {0x00, 0xff, 0x55, 0xff},
103 {0x00, 0xff, 0xff, 0x55},
104 {0x00, 0xff, 0xff, 0xff}
107 /* mouse pointer from dev/syscons/scgfbrndr.c */
108 static u_char mouse_pointer[16] = {
109 0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
110 0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
113 #define AM335X_FONT_HEIGHT 16
116 #define FB_HEIGHT 480
119 static struct video_adapter_softc va_softc;
121 static int am335x_syscons_configure(int flags);
124 * Video driver routines and glue.
126 static vi_probe_t am335x_syscons_probe;
127 static vi_init_t am335x_syscons_init;
128 static vi_get_info_t am335x_syscons_get_info;
129 static vi_query_mode_t am335x_syscons_query_mode;
130 static vi_set_mode_t am335x_syscons_set_mode;
131 static vi_save_font_t am335x_syscons_save_font;
132 static vi_load_font_t am335x_syscons_load_font;
133 static vi_show_font_t am335x_syscons_show_font;
134 static vi_save_palette_t am335x_syscons_save_palette;
135 static vi_load_palette_t am335x_syscons_load_palette;
136 static vi_set_border_t am335x_syscons_set_border;
137 static vi_save_state_t am335x_syscons_save_state;
138 static vi_load_state_t am335x_syscons_load_state;
139 static vi_set_win_org_t am335x_syscons_set_win_org;
140 static vi_read_hw_cursor_t am335x_syscons_read_hw_cursor;
141 static vi_set_hw_cursor_t am335x_syscons_set_hw_cursor;
142 static vi_set_hw_cursor_shape_t am335x_syscons_set_hw_cursor_shape;
143 static vi_blank_display_t am335x_syscons_blank_display;
144 static vi_mmap_t am335x_syscons_mmap;
145 static vi_ioctl_t am335x_syscons_ioctl;
146 static vi_clear_t am335x_syscons_clear;
147 static vi_fill_rect_t am335x_syscons_fill_rect;
148 static vi_bitblt_t am335x_syscons_bitblt;
149 static vi_diag_t am335x_syscons_diag;
150 static vi_save_cursor_palette_t am335x_syscons_save_cursor_palette;
151 static vi_load_cursor_palette_t am335x_syscons_load_cursor_palette;
152 static vi_copy_t am335x_syscons_copy;
153 static vi_putp_t am335x_syscons_putp;
154 static vi_putc_t am335x_syscons_putc;
155 static vi_puts_t am335x_syscons_puts;
156 static vi_putm_t am335x_syscons_putm;
158 static video_switch_t am335x_sysconsvidsw = {
159 .probe = am335x_syscons_probe,
160 .init = am335x_syscons_init,
161 .get_info = am335x_syscons_get_info,
162 .query_mode = am335x_syscons_query_mode,
163 .set_mode = am335x_syscons_set_mode,
164 .save_font = am335x_syscons_save_font,
165 .load_font = am335x_syscons_load_font,
166 .show_font = am335x_syscons_show_font,
167 .save_palette = am335x_syscons_save_palette,
168 .load_palette = am335x_syscons_load_palette,
169 .set_border = am335x_syscons_set_border,
170 .save_state = am335x_syscons_save_state,
171 .load_state = am335x_syscons_load_state,
172 .set_win_org = am335x_syscons_set_win_org,
173 .read_hw_cursor = am335x_syscons_read_hw_cursor,
174 .set_hw_cursor = am335x_syscons_set_hw_cursor,
175 .set_hw_cursor_shape = am335x_syscons_set_hw_cursor_shape,
176 .blank_display = am335x_syscons_blank_display,
177 .mmap = am335x_syscons_mmap,
178 .ioctl = am335x_syscons_ioctl,
179 .clear = am335x_syscons_clear,
180 .fill_rect = am335x_syscons_fill_rect,
181 .bitblt = am335x_syscons_bitblt,
182 .diag = am335x_syscons_diag,
183 .save_cursor_palette = am335x_syscons_save_cursor_palette,
184 .load_cursor_palette = am335x_syscons_load_cursor_palette,
185 .copy = am335x_syscons_copy,
186 .putp = am335x_syscons_putp,
187 .putc = am335x_syscons_putc,
188 .puts = am335x_syscons_puts,
189 .putm = am335x_syscons_putm,
192 VIDEO_DRIVER(am335x_syscons, am335x_sysconsvidsw, am335x_syscons_configure);
194 static vr_init_t am335x_rend_init;
195 static vr_clear_t am335x_rend_clear;
196 static vr_draw_border_t am335x_rend_draw_border;
197 static vr_draw_t am335x_rend_draw;
198 static vr_set_cursor_t am335x_rend_set_cursor;
199 static vr_draw_cursor_t am335x_rend_draw_cursor;
200 static vr_blink_cursor_t am335x_rend_blink_cursor;
201 static vr_set_mouse_t am335x_rend_set_mouse;
202 static vr_draw_mouse_t am335x_rend_draw_mouse;
205 * We use our own renderer; this is because we must emulate a hardware
208 static sc_rndr_sw_t am335x_rend = {
211 am335x_rend_draw_border,
213 am335x_rend_set_cursor,
214 am335x_rend_draw_cursor,
215 am335x_rend_blink_cursor,
216 am335x_rend_set_mouse,
217 am335x_rend_draw_mouse
220 RENDERER(am335x_syscons, 0, am335x_rend, gfb_set);
221 RENDERER_MODULE(am335x_syscons, gfb_set);
224 am335x_rend_init(scr_stat* scp)
229 am335x_rend_clear(scr_stat* scp, int c, int attr)
234 am335x_rend_draw_border(scr_stat* scp, int color)
239 am335x_rend_draw(scr_stat* scp, int from, int count, int flip)
241 video_adapter_t* adp = scp->sc->adp;
245 /* Normal printing */
246 vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
248 /* This is for selections and such: invert the color attribute */
249 for (i = count; i-- > 0; ++from) {
250 c = sc_vtb_getc(&scp->vtb, from);
251 a = sc_vtb_geta(&scp->vtb, from) >> 8;
252 vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
258 am335x_rend_set_cursor(scr_stat* scp, int base, int height, int blink)
263 am335x_rend_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
265 video_adapter_t* adp = scp->sc->adp;
266 struct video_adapter_softc *sc;
271 sc = (struct video_adapter_softc *)adp;
273 if (scp->curs_attr.height <= 0)
276 if (sc->fb_addr == 0)
279 if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
282 /* calculate the coordinates in the video buffer */
283 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
284 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
286 addr = (uint8_t *)sc->fb_addr
287 + (row + sc->ymargin)*(sc->stride)
288 + (sc->depth/8) * (col + sc->xmargin);
292 /* our cursor consists of simply inverting the char under it */
293 for (i = 0; i < adp->va_info.vi_cheight; i++) {
294 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
298 addr[bytes*j + 2] ^= 0xff;
301 addr[bytes*j + 1] ^= 0xff;
302 addr[bytes*j] ^= 0xff;
314 am335x_rend_blink_cursor(scr_stat* scp, int at, int flip)
319 am335x_rend_set_mouse(scr_stat* scp)
324 am335x_rend_draw_mouse(scr_stat* scp, int x, int y, int on)
326 vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
329 static uint16_t am335x_syscons_static_window[ROW*COL];
330 extern u_char dflt_font_16[];
333 * Update videoadapter settings after changing resolution
336 am335x_syscons_update_margins(video_adapter_t *adp)
338 struct video_adapter_softc *sc;
341 sc = (struct video_adapter_softc *)adp;
344 sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
345 sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
349 am335x_syscons_find_panel_node(phandle_t start)
354 for (child = OF_child(start); child != 0; child = OF_peer(child)) {
355 if (ofw_bus_node_is_compatible(child, "ti,am335x-lcd"))
357 if ((result = am335x_syscons_find_panel_node(child)))
365 am335x_syscons_configure(int flags)
367 struct video_adapter_softc *va_sc;
370 phandle_t display, root;
373 if (va_sc->initialized)
380 * It seems there is no way to let syscons framework know
381 * that framebuffer resolution has changed. So just try
382 * to fetch data from FDT and go with defaults if failed
384 root = OF_finddevice("/");
386 (display = am335x_syscons_find_panel_node(root))) {
387 if ((OF_getencprop(display, "panel_width", &cell,
391 if ((OF_getencprop(display, "panel_height", &cell,
393 va_sc->height = cell;
396 if (va_sc->width == 0)
397 va_sc->width = FB_WIDTH;
398 if (va_sc->height == 0)
399 va_sc->height = FB_HEIGHT;
401 am335x_syscons_init(0, &va_sc->va, 0);
403 va_sc->initialized = 1;
409 am335x_syscons_probe(int unit, video_adapter_t **adp, void *arg, int flags)
416 am335x_syscons_init(int unit, video_adapter_t *adp, int flags)
418 struct video_adapter_softc *sc;
421 sc = (struct video_adapter_softc *)adp;
424 vid_init_struct(adp, "am335x_syscons", -1, unit);
426 sc->font = dflt_font_16;
427 vi->vi_cheight = AM335X_FONT_HEIGHT;
430 vi->vi_width = sc->width/8;
431 vi->vi_height = sc->height/vi->vi_cheight;
434 * Clamp width/height to syscons maximums
436 if (vi->vi_width > COL)
438 if (vi->vi_height > ROW)
441 sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
442 sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
445 adp->va_window = (vm_offset_t) am335x_syscons_static_window;
446 adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
448 vid_register(&sc->va);
454 am335x_syscons_get_info(video_adapter_t *adp, int mode, video_info_t *info)
456 bcopy(&adp->va_info, info, sizeof(*info));
461 am335x_syscons_query_mode(video_adapter_t *adp, video_info_t *info)
467 am335x_syscons_set_mode(video_adapter_t *adp, int mode)
473 am335x_syscons_save_font(video_adapter_t *adp, int page, int size, int width,
474 u_char *data, int c, int count)
480 am335x_syscons_load_font(video_adapter_t *adp, int page, int size, int width,
481 u_char *data, int c, int count)
483 struct video_adapter_softc *sc = (struct video_adapter_softc *)adp;
491 am335x_syscons_show_font(video_adapter_t *adp, int page)
497 am335x_syscons_save_palette(video_adapter_t *adp, u_char *palette)
503 am335x_syscons_load_palette(video_adapter_t *adp, u_char *palette)
509 am335x_syscons_set_border(video_adapter_t *adp, int border)
511 return (am335x_syscons_blank_display(adp, border));
515 am335x_syscons_save_state(video_adapter_t *adp, void *p, size_t size)
521 am335x_syscons_load_state(video_adapter_t *adp, void *p)
527 am335x_syscons_set_win_org(video_adapter_t *adp, off_t offset)
533 am335x_syscons_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
541 am335x_syscons_set_hw_cursor(video_adapter_t *adp, int col, int row)
547 am335x_syscons_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
548 int celsize, int blink)
554 am335x_syscons_blank_display(video_adapter_t *adp, int mode)
557 struct video_adapter_softc *sc;
559 sc = (struct video_adapter_softc *)adp;
560 if (sc && sc->fb_addr)
561 memset((void*)sc->fb_addr, 0, sc->fb_size);
567 am335x_syscons_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
568 int prot, vm_memattr_t *memattr)
570 struct video_adapter_softc *sc;
572 sc = (struct video_adapter_softc *)adp;
575 * This might be a legacy VGA mem request: if so, just point it at the
576 * framebuffer, since it shouldn't be touched
578 if (offset < sc->stride*sc->height) {
579 *paddr = sc->fb_paddr + offset;
587 am335x_syscons_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
589 struct video_adapter_softc *sc;
592 sc = (struct video_adapter_softc *)adp;
596 fb = (struct fbtype *)data;
597 fb->fb_type = FBTYPE_PCIMISC;
598 fb->fb_height = sc->height;
599 fb->fb_width = sc->width;
600 fb->fb_depth = sc->depth;
601 if (sc->depth <= 1 || sc->depth > 8)
604 fb->fb_cmsize = 1 << sc->depth;
605 fb->fb_size = sc->fb_size;
608 return (fb_commonioctl(adp, cmd, data));
615 am335x_syscons_clear(video_adapter_t *adp)
618 return (am335x_syscons_blank_display(adp, 0));
622 am335x_syscons_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
629 am335x_syscons_bitblt(video_adapter_t *adp, ...)
636 am335x_syscons_diag(video_adapter_t *adp, int level)
643 am335x_syscons_save_cursor_palette(video_adapter_t *adp, u_char *palette)
650 am335x_syscons_load_cursor_palette(video_adapter_t *adp, u_char *palette)
657 am335x_syscons_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
664 am335x_syscons_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
665 int size, int bpp, int bit_ltor, int byte_ltor)
672 am335x_syscons_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
674 struct video_adapter_softc *sc;
680 uint8_t fg, bg, color;
683 sc = (struct video_adapter_softc *)adp;
685 if (sc->fb_addr == 0)
688 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
689 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
690 p = sc->font + c*AM335X_FONT_HEIGHT;
691 addr = (uint8_t *)sc->fb_addr
692 + (row + sc->ymargin)*(sc->stride)
693 + (sc->depth/8) * (col + sc->xmargin);
698 for (i = 0; i < AM335X_FONT_HEIGHT; i++) {
699 for (j = 0, k = 7; j < 8; j++, k--) {
700 if ((p[i] & (1 << k)) == 0)
707 addr[4*j+0] = am335x_syscons_palette[color].r;
708 addr[4*j+1] = am335x_syscons_palette[color].g;
709 addr[4*j+2] = am335x_syscons_palette[color].b;
710 addr[4*j+3] = am335x_syscons_palette[color].a;
713 addr[3*j] = am335x_syscons_palette[color].r;
714 addr[3*j+1] = am335x_syscons_palette[color].g;
715 addr[3*j+2] = am335x_syscons_palette[color].b;
718 rgb = (am335x_syscons_palette[color].r >> 3) << 11;
719 rgb |= (am335x_syscons_palette[color].g >> 2) << 5;
720 rgb |= (am335x_syscons_palette[color].b >> 3);
721 addr[2*j] = rgb & 0xff;
722 addr[2*j + 1] = (rgb >> 8) & 0xff;
724 /* Not supported yet */
729 addr += (sc->stride);
736 am335x_syscons_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
740 for (i = 0; i < len; i++)
741 am335x_syscons_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
747 am335x_syscons_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
748 uint32_t pixel_mask, int size, int width)
754 /* Initialization function */
755 int am335x_lcd_syscons_setup(vm_offset_t vaddr, vm_paddr_t paddr,
756 struct panel_info *panel)
758 struct video_adapter_softc *va_sc = &va_softc;
760 va_sc->fb_addr = vaddr;
761 va_sc->fb_paddr = paddr;
762 va_sc->depth = panel->bpp;
763 va_sc->stride = panel->bpp*panel->panel_width/8;
765 va_sc->width = panel->panel_width;
766 va_sc->height = panel->panel_height;
767 va_sc->fb_size = va_sc->width * va_sc->height
769 am335x_syscons_update_margins(&va_sc->va);
775 * Define a stub keyboard driver in case one hasn't been
776 * compiled into the kernel
778 #include <sys/kbio.h>
779 #include <dev/kbd/kbdreg.h>
781 static int dummy_kbd_configure(int flags);
783 keyboard_switch_t am335x_dummysw;
786 dummy_kbd_configure(int flags)
791 KEYBOARD_DRIVER(am335x_dummy, am335x_dummysw, dummy_kbd_configure);