fe267a5590
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
385 lines
8.6 KiB
C
385 lines
8.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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* All rights reserved.
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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 as
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* the first lines of this file unmodified.
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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 AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_vga.h"
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#include "opt_fb.h"
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#include "opt_syscons.h" /* should be removed in the future, XXX */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/conf.h>
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#include <sys/bus.h>
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#include <sys/fbio.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/md_var.h>
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#ifdef __i386__
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#include <machine/pc/bios.h>
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#endif
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#include <dev/fb/fbreg.h>
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#include <dev/fb/vgareg.h>
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#include <isa/isareg.h>
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#include <isa/isavar.h>
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static void
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vga_suspend(device_t dev)
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{
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vga_softc_t *sc;
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int nbytes;
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sc = device_get_softc(dev);
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/* Save the video state across the suspend. */
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if (sc->state_buf != NULL)
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goto save_palette;
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nbytes = vidd_save_state(sc->adp, NULL, 0);
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if (nbytes <= 0)
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goto save_palette;
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sc->state_buf = malloc(nbytes, M_TEMP, M_NOWAIT);
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if (sc->state_buf == NULL)
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goto save_palette;
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if (bootverbose)
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device_printf(dev, "saving %d bytes of video state\n", nbytes);
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if (vidd_save_state(sc->adp, sc->state_buf, nbytes) != 0) {
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device_printf(dev, "failed to save state (nbytes=%d)\n",
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nbytes);
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free(sc->state_buf, M_TEMP);
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sc->state_buf = NULL;
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}
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save_palette:
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/* Save the color palette across the suspend. */
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if (sc->pal_buf != NULL)
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return;
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sc->pal_buf = malloc(256 * 3, M_TEMP, M_NOWAIT);
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if (sc->pal_buf == NULL)
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return;
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if (bootverbose)
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device_printf(dev, "saving color palette\n");
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if (vidd_save_palette(sc->adp, sc->pal_buf) != 0) {
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device_printf(dev, "failed to save palette\n");
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free(sc->pal_buf, M_TEMP);
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sc->pal_buf = NULL;
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}
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}
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static void
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vga_resume(device_t dev)
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{
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vga_softc_t *sc;
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sc = device_get_softc(dev);
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if (sc->state_buf != NULL) {
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if (vidd_load_state(sc->adp, sc->state_buf) != 0)
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device_printf(dev, "failed to reload state\n");
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free(sc->state_buf, M_TEMP);
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sc->state_buf = NULL;
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}
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if (sc->pal_buf != NULL) {
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if (vidd_load_palette(sc->adp, sc->pal_buf) != 0)
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device_printf(dev, "failed to reload palette\n");
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free(sc->pal_buf, M_TEMP);
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sc->pal_buf = NULL;
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}
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}
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#define VGA_SOFTC(unit) \
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((vga_softc_t *)devclass_get_softc(isavga_devclass, unit))
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static devclass_t isavga_devclass;
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#ifdef FB_INSTALL_CDEV
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static d_open_t isavga_open;
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static d_close_t isavga_close;
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static d_read_t isavga_read;
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static d_write_t isavga_write;
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static d_ioctl_t isavga_ioctl;
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static d_mmap_t isavga_mmap;
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static struct cdevsw isavga_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = D_NEEDGIANT,
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.d_open = isavga_open,
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.d_close = isavga_close,
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.d_read = isavga_read,
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.d_write = isavga_write,
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.d_ioctl = isavga_ioctl,
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.d_mmap = isavga_mmap,
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.d_name = VGA_DRIVER_NAME,
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};
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#endif /* FB_INSTALL_CDEV */
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static void
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isavga_identify(driver_t *driver, device_t parent)
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{
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BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, VGA_DRIVER_NAME, 0);
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}
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static int
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isavga_probe(device_t dev)
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{
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video_adapter_t adp;
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int error;
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/* No pnp support */
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if (isa_get_vendorid(dev))
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return (ENXIO);
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error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev));
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if (error == 0) {
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device_set_desc(dev, "Generic ISA VGA");
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bus_set_resource(dev, SYS_RES_IOPORT, 0,
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adp.va_io_base, adp.va_io_size);
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bus_set_resource(dev, SYS_RES_MEMORY, 0,
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adp.va_mem_base, adp.va_mem_size);
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#if 0
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isa_set_port(dev, adp.va_io_base);
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isa_set_portsize(dev, adp.va_io_size);
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isa_set_maddr(dev, adp.va_mem_base);
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isa_set_msize(dev, adp.va_mem_size);
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#endif
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}
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return (error);
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}
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static int
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isavga_attach(device_t dev)
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{
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vga_softc_t *sc;
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int unit;
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int rid;
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int error;
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unit = device_get_unit(dev);
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sc = device_get_softc(dev);
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rid = 0;
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bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
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RF_ACTIVE | RF_SHAREABLE);
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rid = 0;
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bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
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RF_ACTIVE | RF_SHAREABLE);
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error = vga_attach_unit(unit, sc, device_get_flags(dev));
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if (error)
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return (error);
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#ifdef FB_INSTALL_CDEV
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/* attach a virtual frame buffer device */
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error = fb_attach(VGA_MKMINOR(unit), sc->adp, &isavga_cdevsw);
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if (error)
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return (error);
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#endif /* FB_INSTALL_CDEV */
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if (0 && bootverbose)
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vidd_diag(sc->adp, bootverbose);
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#if 0 /* experimental */
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device_add_child(dev, "fb", -1);
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bus_generic_attach(dev);
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#endif
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return (0);
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}
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static int
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isavga_suspend(device_t dev)
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{
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int error;
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error = bus_generic_suspend(dev);
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if (error != 0)
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return (error);
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vga_suspend(dev);
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return (error);
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}
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static int
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isavga_resume(device_t dev)
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{
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vga_resume(dev);
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return (bus_generic_resume(dev));
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}
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#ifdef FB_INSTALL_CDEV
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static int
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isavga_open(struct cdev *dev, int flag, int mode, struct thread *td)
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{
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return (vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td));
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}
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static int
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isavga_close(struct cdev *dev, int flag, int mode, struct thread *td)
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{
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return (vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td));
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}
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static int
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isavga_read(struct cdev *dev, struct uio *uio, int flag)
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{
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return (vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag));
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}
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static int
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isavga_write(struct cdev *dev, struct uio *uio, int flag)
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{
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return (vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag));
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}
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static int
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isavga_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
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{
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return (vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, td));
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}
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static int
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isavga_mmap(struct cdev *dev, 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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return (vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, paddr, prot,
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memattr));
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}
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#endif /* FB_INSTALL_CDEV */
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static device_method_t isavga_methods[] = {
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DEVMETHOD(device_identify, isavga_identify),
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DEVMETHOD(device_probe, isavga_probe),
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DEVMETHOD(device_attach, isavga_attach),
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DEVMETHOD(device_suspend, isavga_suspend),
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DEVMETHOD(device_resume, isavga_resume),
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DEVMETHOD_END
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};
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static driver_t isavga_driver = {
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VGA_DRIVER_NAME,
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isavga_methods,
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sizeof(vga_softc_t),
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};
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DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0);
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static devclass_t vgapm_devclass;
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static void
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vgapm_identify(driver_t *driver, device_t parent)
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{
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if (device_get_flags(parent) != 0)
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device_add_child(parent, "vgapm", 0);
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}
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static int
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vgapm_probe(device_t dev)
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{
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device_set_desc(dev, "VGA suspend/resume");
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device_quiet(dev);
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return (BUS_PROBE_DEFAULT);
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}
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static int
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vgapm_attach(device_t dev)
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{
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bus_generic_probe(dev);
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bus_generic_attach(dev);
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return (0);
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}
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static int
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vgapm_suspend(device_t dev)
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{
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device_t vga_dev;
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int error;
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error = bus_generic_suspend(dev);
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if (error != 0)
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return (error);
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vga_dev = devclass_get_device(isavga_devclass, 0);
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if (vga_dev == NULL)
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return (0);
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vga_suspend(vga_dev);
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return (0);
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}
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static int
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vgapm_resume(device_t dev)
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{
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device_t vga_dev;
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vga_dev = devclass_get_device(isavga_devclass, 0);
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if (vga_dev != NULL)
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vga_resume(vga_dev);
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return (bus_generic_resume(dev));
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}
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static device_method_t vgapm_methods[] = {
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DEVMETHOD(device_identify, vgapm_identify),
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DEVMETHOD(device_probe, vgapm_probe),
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DEVMETHOD(device_attach, vgapm_attach),
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DEVMETHOD(device_suspend, vgapm_suspend),
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DEVMETHOD(device_resume, vgapm_resume),
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{ 0, 0 }
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};
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static driver_t vgapm_driver = {
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"vgapm",
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vgapm_methods,
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0
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};
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DRIVER_MODULE(vgapm, vgapci, vgapm_driver, vgapm_devclass, 0, 0);
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