acpi_video(4): Add evdev support for reporting of video events.
This commit is contained in:
Vladimir Kondratyev
parent
ae2b074bbb
commit
16b168c115
@ -29,6 +29,8 @@
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_evdev.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/eventhandler.h>
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@ -43,6 +45,11 @@ __FBSDID("$FreeBSD$");
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#include <dev/acpica/acpivar.h>
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#ifdef EVDEV_SUPPORT
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#include <dev/evdev/input.h>
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#include <dev/evdev/evdev.h>
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#endif
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/* ACPI video extension driver. */
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struct acpi_video_output {
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ACPI_HANDLE handle;
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@ -61,6 +68,9 @@ struct acpi_video_output {
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int *vo_levels;
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struct sysctl_ctx_list vo_sysctl_ctx;
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struct sysctl_oid *vo_sysctl_tree;
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#ifdef EVDEV_SUPPORT
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struct evdev_dev *evdev;
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#endif
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};
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STAILQ_HEAD(acpi_video_output_queue, acpi_video_output);
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@ -70,6 +80,9 @@ struct acpi_video_softc {
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ACPI_HANDLE handle;
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struct acpi_video_output_queue vid_outputs;
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eventhandler_tag vid_pwr_evh;
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#ifdef EVDEV_SUPPORT
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struct evdev_dev *evdev;
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#endif
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};
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/* interfaces */
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@ -107,10 +120,14 @@ static void vo_set_device_state(ACPI_HANDLE, UINT32);
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/* events */
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#define VID_NOTIFY_SWITCHED 0x80
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#define VID_NOTIFY_REPROBE 0x81
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#define VID_NOTIFY_CYCLE_OUT 0x82
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#define VID_NOTIFY_NEXT_OUT 0x83
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#define VID_NOTIFY_PREV_OUT 0x84
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#define VID_NOTIFY_CYCLE_BRN 0x85
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#define VID_NOTIFY_INC_BRN 0x86
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#define VID_NOTIFY_DEC_BRN 0x87
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#define VID_NOTIFY_ZERO_BRN 0x88
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#define VID_NOTIFY_DISP_OFF 0x89
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/* _DOS (Enable/Disable Output Switching) argument bits */
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#define DOS_SWITCH_MASK 3
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@ -175,6 +192,9 @@ static devclass_t acpi_video_devclass;
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DRIVER_MODULE(acpi_video, vgapci, acpi_video_driver, acpi_video_devclass,
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acpi_video_modevent, NULL);
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MODULE_DEPEND(acpi_video, acpi, 1, 1, 1);
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#ifdef EVDEV_SUPPORT
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MODULE_DEPEND(acpi_video, evdev, 1, 1, 1);
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#endif
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static struct sysctl_ctx_list acpi_video_sysctl_ctx;
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static struct sysctl_oid *acpi_video_sysctl_tree;
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@ -190,6 +210,45 @@ ACPI_SERIAL_DECL(video, "ACPI video");
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ACPI_SERIAL_DECL(video_output, "ACPI video output");
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static MALLOC_DEFINE(M_ACPIVIDEO, "acpivideo", "ACPI video extension");
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#ifdef EVDEV_SUPPORT
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static const struct {
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UINT32 notify;
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uint16_t key;
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} acpi_video_evdev_map[] = {
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{ VID_NOTIFY_SWITCHED, KEY_SWITCHVIDEOMODE },
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{ VID_NOTIFY_REPROBE, KEY_SWITCHVIDEOMODE },
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{ VID_NOTIFY_CYCLE_OUT, KEY_SWITCHVIDEOMODE },
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{ VID_NOTIFY_NEXT_OUT, KEY_VIDEO_NEXT },
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{ VID_NOTIFY_PREV_OUT, KEY_VIDEO_PREV },
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{ VID_NOTIFY_CYCLE_BRN, KEY_BRIGHTNESS_CYCLE },
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{ VID_NOTIFY_INC_BRN, KEY_BRIGHTNESSUP },
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{ VID_NOTIFY_DEC_BRN, KEY_BRIGHTNESSDOWN },
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{ VID_NOTIFY_ZERO_BRN, KEY_BRIGHTNESS_ZERO },
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{ VID_NOTIFY_DISP_OFF, KEY_DISPLAY_OFF },
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};
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static void
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acpi_video_push_evdev_event(struct evdev_dev *evdev, UINT32 notify)
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{
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int i;
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uint16_t key;
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/* Do not allow to execute 2 instances this routine concurently */
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ACPI_SERIAL_ASSERT(video_output);
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for (i = 0; i < nitems(acpi_video_evdev_map); i++) {
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if (acpi_video_evdev_map[i].notify == notify) {
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key = acpi_video_evdev_map[i].key;
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evdev_push_key(evdev, key, 1);
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evdev_sync(evdev);
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evdev_push_key(evdev, key, 0);
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evdev_sync(evdev);
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break;
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}
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}
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}
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#endif
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static int
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acpi_video_modevent(struct module *mod __unused, int evt, void *cookie __unused)
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{
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@ -247,12 +306,30 @@ acpi_video_attach(device_t dev)
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{
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struct acpi_softc *acpi_sc;
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struct acpi_video_softc *sc;
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#ifdef EVDEV_SUPPORT
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int i;
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#endif
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sc = device_get_softc(dev);
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acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
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if (acpi_sc == NULL)
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return (ENXIO);
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#ifdef EVDEV_SUPPORT
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sc->evdev = evdev_alloc();
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evdev_set_name(sc->evdev, device_get_desc(dev));
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evdev_set_phys(sc->evdev, device_get_nameunit(dev));
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evdev_set_id(sc->evdev, BUS_HOST, 0, 0, 1);
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evdev_support_event(sc->evdev, EV_SYN);
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evdev_support_event(sc->evdev, EV_KEY);
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for (i = 0; i < nitems(acpi_video_evdev_map); i++)
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evdev_support_key(sc->evdev, acpi_video_evdev_map[i].key);
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if (evdev_register(sc->evdev) != 0)
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return (ENXIO);
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#endif
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ACPI_SERIAL_BEGIN(video);
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if (acpi_video_sysctl_tree == NULL) {
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acpi_video_sysctl_tree = SYSCTL_ADD_NODE(&acpi_video_sysctl_ctx,
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@ -306,6 +383,10 @@ acpi_video_detach(device_t dev)
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}
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ACPI_SERIAL_END(video);
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#ifdef EVDEV_SUPPORT
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evdev_free(sc->evdev);
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#endif
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return (0);
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}
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@ -404,12 +485,21 @@ acpi_video_notify_handler(ACPI_HANDLE handle, UINT32 notify, void *context)
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}
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ACPI_SERIAL_END(video);
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break;
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/* Next events should not appear if DOS_SWITCH_BY_OSPM policy is set */
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case VID_NOTIFY_CYCLE_OUT:
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case VID_NOTIFY_NEXT_OUT:
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case VID_NOTIFY_PREV_OUT:
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default:
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device_printf(sc->device, "unknown notify event 0x%x\n",
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notify);
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}
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AcpiOsExecute(OSL_NOTIFY_HANDLER, acpi_video_invoke_event_handler,
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(void *)(uintptr_t)notify);
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#ifdef EVDEV_SUPPORT
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ACPI_SERIAL_BEGIN(video_output);
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acpi_video_push_evdev_event(sc->evdev, notify);
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ACPI_SERIAL_END(video_output);
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#endif
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}
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static void
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@ -454,6 +544,9 @@ acpi_video_bind_outputs_subr(ACPI_HANDLE handle, UINT32 adr, void *context)
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}
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vo = acpi_video_vo_init(adr);
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if (vo != NULL) {
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#ifdef EVDEV_SUPPORT
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vo->evdev = sc->evdev;
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#endif
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acpi_video_vo_bind(vo, handle);
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STAILQ_INSERT_TAIL(&sc->vid_outputs, vo, vo_next);
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}
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@ -708,6 +801,7 @@ acpi_video_vo_notify_handler(ACPI_HANDLE handle, UINT32 notify, void *context)
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case VID_NOTIFY_INC_BRN:
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case VID_NOTIFY_DEC_BRN:
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case VID_NOTIFY_ZERO_BRN:
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case VID_NOTIFY_DISP_OFF:
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if (vo->vo_levels == NULL)
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goto out;
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level = vo_get_brightness(vo);
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@ -757,6 +851,9 @@ acpi_video_vo_notify_handler(ACPI_HANDLE handle, UINT32 notify, void *context)
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vo_set_brightness(vo, new_level);
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vo->vo_brightness = new_level;
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}
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#ifdef EVDEV_SUPPORT
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acpi_video_push_evdev_event(vo->evdev, notify);
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#endif
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out:
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ACPI_SERIAL_END(video_output);
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