diff options
Diffstat (limited to 'sys/dev/syscons/scvesactl.c')
| -rw-r--r-- | sys/dev/syscons/scvesactl.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/sys/dev/syscons/scvesactl.c b/sys/dev/syscons/scvesactl.c new file mode 100644 index 0000000..9678177 --- /dev/null +++ b/sys/dev/syscons/scvesactl.c @@ -0,0 +1,150 @@ +/*- + * Copyright (c) 1998 Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp) + * 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. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. + * + * $Id$ + */ + +#include "sc.h" +#include "opt_vesa.h" +#include "opt_vm86.h" + +#if (NSC > 0 && defined(VESA) && defined(VM86)) || defined(VESA_MODULE) + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/tty.h> +#include <sys/kernel.h> + +#include <machine/apm_bios.h> +#include <machine/console.h> +#include <machine/pc/vesa.h> + +#include <i386/isa/videoio.h> +#include <i386/isa/syscons.h> + +static int (*prev_user_ioctl)(dev_t dev, int cmd, caddr_t data, int flag, + struct proc *p); + +extern struct tty *scdevtotty(dev_t dev); + +int +vesa_ioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p) +{ + scr_stat *scp; + struct tty *tp; + video_info_t info; + video_adapter_t *adp; + int mode; + int error; + int s; + + tp = scdevtotty(dev); + if (!tp) + return ENXIO; + scp = sc_get_scr_stat(tp->t_dev); + + switch (cmd) { + case SW_VESA_USER: + + mode = (int)data; + if ((*biosvidsw.get_info)(scp->adp, mode, &info)) + return ENODEV; + if (info.vi_flags & V_INFO_GRAPHICS) + goto vesa_graphics; + else + goto vesa_text; + + /* text modes */ + case SW_VESA_C80x60: + case SW_VESA_C132x25: + case SW_VESA_C132x43: + case SW_VESA_C132x50: + case SW_VESA_C132x60: + adp = get_adapter(scp); + if (!(adp->va_flags & V_ADP_MODECHANGE)) + return ENODEV; + mode = (cmd & 0xff) + M_VESA_BASE; +vesa_text: + return sc_set_text_mode(scp, tp, mode, 0, 0, 0); + + /* graphics modes */ + case SW_VESA_32K_320: case SW_VESA_64K_320: + case SW_VESA_FULL_320: + + case SW_VESA_CG640x400: + + case SW_VESA_CG640x480: + case SW_VESA_32K_640: case SW_VESA_64K_640: + case SW_VESA_FULL_640: + + case SW_VESA_800x600: case SW_VESA_CG800x600: + case SW_VESA_32K_800: case SW_VESA_64K_800: + case SW_VESA_FULL_800: + + case SW_VESA_1024x768: case SW_VESA_CG1024x768: + case SW_VESA_32K_1024: case SW_VESA_64K_1024: + case SW_VESA_FULL_1024: + + case SW_VESA_1280x1024: case SW_VESA_CG1280x1024: + case SW_VESA_32K_1280: case SW_VESA_64K_1280: + case SW_VESA_FULL_1280: + adp = get_adapter(scp); + if (!(adp->va_flags & V_ADP_MODECHANGE)) + return ENODEV; + mode = (cmd & 0xff) + M_VESA_BASE; +vesa_graphics: + return sc_set_graphics_mode(scp, tp, mode); + } + + if (prev_user_ioctl) + return (*prev_user_ioctl)(dev, cmd, data, flag, p); + else + return ENOIOCTL; +} + +int +vesa_load_ioctl(void) +{ + if (prev_user_ioctl) + return EBUSY; + prev_user_ioctl = sc_user_ioctl; + sc_user_ioctl = vesa_ioctl; + return 0; +} + +int +vesa_unload_ioctl(void) +{ + if (sc_user_ioctl != vesa_ioctl) + return EBUSY; + sc_user_ioctl = prev_user_ioctl; + prev_user_ioctl = NULL; + return 0; +} + +#endif /* (NSC > 0 && VESA && VM86) || VESA_MODULE */ |
