60d7ea3d32
rather than only drivers attached later on. This involves a small amount of code duplication with dev/fb/fbd.c, which will fixed later on. Also improve performance of vt_blank() by making it not read from the framebuffer unnecessarily.
434 lines
9.5 KiB
C
434 lines
9.5 KiB
C
/*-
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* Copyright (c) 2013 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Aleksandr Rybalko under sponsorship from the
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* FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/queue.h>
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#include <sys/fbio.h>
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#include <dev/vt/vt.h>
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#include <dev/vt/hw/fb/vt_fb.h>
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#include <dev/vt/colors/vt_termcolors.h>
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void vt_fb_drawrect(struct vt_device *vd, int x1, int y1, int x2, int y2,
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int fill, term_color_t color);
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void vt_fb_setpixel(struct vt_device *vd, int x, int y, term_color_t color);
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static struct vt_driver vt_fb_driver = {
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.vd_name = "fb",
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.vd_init = vt_fb_init,
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.vd_blank = vt_fb_blank,
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.vd_bitbltchr = vt_fb_bitbltchr,
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.vd_maskbitbltchr = vt_fb_maskbitbltchr,
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.vd_drawrect = vt_fb_drawrect,
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.vd_setpixel = vt_fb_setpixel,
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.vd_postswitch = vt_fb_postswitch,
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.vd_priority = VD_PRIORITY_GENERIC+10,
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.vd_fb_ioctl = vt_fb_ioctl,
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.vd_fb_mmap = vt_fb_mmap,
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};
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VT_DRIVER_DECLARE(vt_fb, vt_fb_driver);
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int
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vt_fb_ioctl(struct vt_device *vd, u_long cmd, caddr_t data, struct thread *td)
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{
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struct fb_info *info;
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int error = 0;
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info = vd->vd_softc;
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switch (cmd) {
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case FBIOGTYPE:
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bcopy(info, (struct fbtype *)data, sizeof(struct fbtype));
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break;
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case FBIO_GETWINORG: /* get frame buffer window origin */
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*(u_int *)data = 0;
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break;
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case FBIO_GETDISPSTART: /* get display start address */
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((video_display_start_t *)data)->x = 0;
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((video_display_start_t *)data)->y = 0;
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break;
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case FBIO_GETLINEWIDTH: /* get scan line width in bytes */
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*(u_int *)data = info->fb_stride;
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break;
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case FBIO_BLANK: /* blank display */
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if (vd->vd_driver->vd_blank == NULL)
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return (ENODEV);
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vd->vd_driver->vd_blank(vd, TC_BLACK);
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break;
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default:
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error = ENOIOCTL;
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break;
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}
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return (error);
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}
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int
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vt_fb_mmap(struct vt_device *vd, vm_ooffset_t offset, vm_paddr_t *paddr,
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int prot, vm_memattr_t *memattr)
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{
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struct fb_info *info;
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info = vd->vd_softc;
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if (info->fb_flags & FB_FLAG_NOMMAP)
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return (ENODEV);
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if (offset >= 0 && offset < info->fb_size) {
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*paddr = info->fb_pbase + offset;
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#ifdef VM_MEMATTR_WRITE_COMBINING
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*memattr = VM_MEMATTR_WRITE_COMBINING;
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#endif
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return (0);
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}
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return (EINVAL);
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}
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void
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vt_fb_setpixel(struct vt_device *vd, int x, int y, term_color_t color)
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{
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struct fb_info *info;
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uint32_t c;
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u_int o;
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info = vd->vd_softc;
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c = info->fb_cmap[color];
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o = info->fb_stride * y + x * FBTYPE_GET_BYTESPP(info);
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switch (FBTYPE_GET_BYTESPP(info)) {
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case 1:
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info->wr1(info, o, c);
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break;
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case 2:
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info->wr2(info, o, c);
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break;
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case 3:
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info->wr1(info, o, (c >> 16) & 0xff);
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info->wr1(info, o + 1, (c >> 8) & 0xff);
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info->wr1(info, o + 2, c & 0xff);
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break;
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case 4:
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info->wr4(info, o, c);
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break;
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default:
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/* panic? */
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return;
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}
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}
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void
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vt_fb_drawrect(struct vt_device *vd, int x1, int y1, int x2, int y2, int fill,
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term_color_t color)
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{
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int x, y;
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for (y = y1; y <= y2; y++) {
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if (fill || (y == y1) || (y == y2)) {
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for (x = x1; x <= x2; x++)
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vt_fb_setpixel(vd, x, y, color);
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} else {
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vt_fb_setpixel(vd, x1, y, color);
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vt_fb_setpixel(vd, x2, y, color);
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}
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}
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}
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void
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vt_fb_blank(struct vt_device *vd, term_color_t color)
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{
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struct fb_info *info;
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uint32_t c;
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u_int o, h;
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info = vd->vd_softc;
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c = info->fb_cmap[color];
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switch (FBTYPE_GET_BYTESPP(info)) {
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case 1:
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for (h = 0; h < info->fb_stride; h++)
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for (o = 0; o < info->fb_stride; o++)
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info->wr1(info, h*info->fb_stride + o, c);
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break;
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case 2:
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for (h = 0; h < info->fb_stride; h++)
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for (o = 0; o < info->fb_stride; o += 2)
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info->wr2(info, h*info->fb_stride + o, c);
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break;
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case 3:
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for (h = 0; h < info->fb_stride; h++)
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for (o = 0; o < info->fb_stride; o += 3) {
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info->wr1(info, h*info->fb_stride + o,
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(c >> 16) & 0xff);
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info->wr1(info, h*info->fb_stride + o + 1,
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(c >> 8) & 0xff);
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info->wr1(info, h*info->fb_stride + o + 2,
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c & 0xff);
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}
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break;
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case 4:
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for (h = 0; h < info->fb_stride; h++)
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for (o = 0; o < info->fb_stride; o += 4)
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info->wr4(info, o, c);
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break;
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default:
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/* panic? */
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return;
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}
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}
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void
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vt_fb_bitbltchr(struct vt_device *vd, const uint8_t *src, const uint8_t *mask,
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int bpl, vt_axis_t top, vt_axis_t left, unsigned int width,
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unsigned int height, term_color_t fg, term_color_t bg)
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{
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struct fb_info *info;
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uint32_t fgc, bgc, cc, o;
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int c, l, bpp;
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u_long line;
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uint8_t b;
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const uint8_t *ch;
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info = vd->vd_softc;
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bpp = FBTYPE_GET_BYTESPP(info);
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fgc = info->fb_cmap[fg];
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bgc = info->fb_cmap[bg];
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b = 0;
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if (bpl == 0)
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bpl = (width + 7) >> 3; /* Bytes per sorce line. */
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/* Don't try to put off screen pixels */
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if (((left + width) > info->fb_width) || ((top + height) >
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info->fb_height))
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return;
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line = (info->fb_stride * top) + (left * bpp);
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for (l = 0; l < height; l++) {
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ch = src;
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for (c = 0; c < width; c++) {
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if (c % 8 == 0)
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b = *ch++;
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else
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b <<= 1;
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o = line + (c * bpp);
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cc = b & 0x80 ? fgc : bgc;
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switch(bpp) {
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case 1:
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info->wr1(info, o, cc);
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break;
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case 2:
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info->wr2(info, o, cc);
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break;
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case 3:
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/* Packed mode, so unaligned. Byte access. */
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info->wr1(info, o, (cc >> 16) & 0xff);
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info->wr1(info, o + 1, (cc >> 8) & 0xff);
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info->wr1(info, o + 2, cc & 0xff);
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break;
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case 4:
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info->wr4(info, o, cc);
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break;
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default:
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/* panic? */
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break;
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}
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}
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line += info->fb_stride;
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src += bpl;
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}
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}
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void
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vt_fb_maskbitbltchr(struct vt_device *vd, const uint8_t *src, const uint8_t *mask,
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int bpl, vt_axis_t top, vt_axis_t left, unsigned int width,
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unsigned int height, term_color_t fg, term_color_t bg)
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{
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struct fb_info *info;
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uint32_t fgc, bgc, cc, o;
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int c, l, bpp;
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u_long line;
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uint8_t b, m;
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const uint8_t *ch;
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info = vd->vd_softc;
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bpp = FBTYPE_GET_BYTESPP(info);
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fgc = info->fb_cmap[fg];
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bgc = info->fb_cmap[bg];
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b = m = 0;
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if (bpl == 0)
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bpl = (width + 7) >> 3; /* Bytes per sorce line. */
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/* Don't try to put off screen pixels */
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if (((left + width) > info->fb_width) || ((top + height) >
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info->fb_height))
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return;
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line = (info->fb_stride * top) + (left * bpp);
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for (l = 0; l < height; l++) {
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ch = src;
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for (c = 0; c < width; c++) {
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if (c % 8 == 0)
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b = *ch++;
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else
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b <<= 1;
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if (mask != NULL) {
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if (c % 8 == 0)
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m = *mask++;
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else
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m <<= 1;
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/* Skip pixel write, if mask has no bit set. */
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if ((m & 0x80) == 0)
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continue;
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}
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o = line + (c * bpp);
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cc = b & 0x80 ? fgc : bgc;
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switch(bpp) {
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case 1:
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info->wr1(info, o, cc);
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break;
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case 2:
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info->wr2(info, o, cc);
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break;
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case 3:
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/* Packed mode, so unaligned. Byte access. */
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info->wr1(info, o, (cc >> 16) & 0xff);
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info->wr1(info, o + 1, (cc >> 8) & 0xff);
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info->wr1(info, o + 2, cc & 0xff);
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break;
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case 4:
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info->wr4(info, o, cc);
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break;
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default:
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/* panic? */
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break;
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}
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}
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line += info->fb_stride;
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src += bpl;
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}
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}
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void
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vt_fb_postswitch(struct vt_device *vd)
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{
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struct fb_info *info;
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info = vd->vd_softc;
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if (info->enter != NULL)
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info->enter(info->fb_priv);
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}
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static int
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vt_fb_init_cmap(uint32_t *cmap, int depth)
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{
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switch (depth) {
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case 8:
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return (vt_generate_vga_palette(cmap, COLOR_FORMAT_RGB,
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0x7, 5, 0x7, 2, 0x3, 0));
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case 15:
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return (vt_generate_vga_palette(cmap, COLOR_FORMAT_RGB,
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0x1f, 10, 0x1f, 5, 0x1f, 0));
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case 16:
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return (vt_generate_vga_palette(cmap, COLOR_FORMAT_RGB,
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0x1f, 11, 0x3f, 5, 0x1f, 0));
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case 24:
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case 32: /* Ignore alpha. */
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return (vt_generate_vga_palette(cmap, COLOR_FORMAT_RGB,
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0xff, 0, 0xff, 8, 0xff, 16));
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default:
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return (1);
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}
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}
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int
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vt_fb_init(struct vt_device *vd)
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{
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struct fb_info *info;
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int err;
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info = vd->vd_softc;
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vd->vd_height = info->fb_height;
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vd->vd_width = info->fb_width;
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if (info->fb_cmsize <= 0) {
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err = vt_fb_init_cmap(info->fb_cmap, FBTYPE_GET_BPP(info));
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if (err)
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return (CN_DEAD);
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info->fb_cmsize = 16;
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}
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/* Clear the screen. */
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vt_fb_blank(vd, TC_BLACK);
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/* Wakeup screen. KMS need this. */
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vt_fb_postswitch(vd);
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return (CN_INTERNAL);
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}
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int
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vt_fb_attach(struct fb_info *info)
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{
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vt_allocate(&vt_fb_driver, info);
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return (0);
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}
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void
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vt_fb_resume(void)
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{
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vt_resume();
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}
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void
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vt_fb_suspend(void)
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{
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vt_suspend();
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}
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