diff options
Diffstat (limited to 'polyp/module-mmkbd-evdev.c')
-rw-r--r-- | polyp/module-mmkbd-evdev.c | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/polyp/module-mmkbd-evdev.c b/polyp/module-mmkbd-evdev.c deleted file mode 100644 index ec45ec4b..00000000 --- a/polyp/module-mmkbd-evdev.c +++ /dev/null @@ -1,249 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2 of the License, - or (at your option) any later version. - - polypaudio is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdio.h> -#include <assert.h> -#include <unistd.h> -#include <string.h> -#include <stdlib.h> -#include <errno.h> -#include <fcntl.h> - -#include <linux/input.h> - -#include "module.h" -#include "log.h" -#include "module-mmkbd-evdev-symdef.h" -#include "namereg.h" -#include "sink.h" -#include "xmalloc.h" -#include "modargs.h" -#include "util.h" - -PA_MODULE_AUTHOR("Lennart Poettering") -PA_MODULE_DESCRIPTION("Multimedia keyboard support via Linux evdev") -PA_MODULE_VERSION(PACKAGE_VERSION) -PA_MODULE_USAGE("device=<evdev device> sink=<sink name>") - -#define DEFAULT_DEVICE "/dev/input/event0" - -/* - * This isn't defined in older kernel headers and there is no way of - * detecting it. - */ -struct _input_id { - __u16 bustype; - __u16 vendor; - __u16 product; - __u16 version; -}; - -static const char* const valid_modargs[] = { - "device", - "sink", - NULL, -}; - -struct userdata { - int fd; - pa_io_event *io; - char *sink_name; - pa_module *module; - float mute_toggle_save; -}; - -static void io_callback(pa_mainloop_api *io, PA_GCC_UNUSED pa_io_event *e, PA_GCC_UNUSED int fd, pa_io_event_flags_t events, void*userdata) { - struct userdata *u = userdata; - assert(io); - assert(u); - - if (events & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR)) { - pa_log(__FILE__": lost connection to evdev device.\n"); - goto fail; - } - - if (events & PA_IO_EVENT_INPUT) { - struct input_event ev; - - if (pa_loop_read(u->fd, &ev, sizeof(ev)) <= 0) { - pa_log(__FILE__": failed to read from event device: %s\n", strerror(errno)); - goto fail; - } - - if (ev.type == EV_KEY && (ev.value == 1 || ev.value == 2)) { - enum { INVALID, UP, DOWN, MUTE_TOGGLE } volchange = INVALID; - - pa_log_debug(__FILE__": key code=%u, value=%u\n", ev.code, ev.value); - - switch (ev.code) { - case KEY_VOLUMEDOWN: volchange = DOWN; break; - case KEY_VOLUMEUP: volchange = UP; break; - case KEY_MUTE: volchange = MUTE_TOGGLE; break; - } - - if (volchange != INVALID) { - pa_sink *s; - - if (!(s = pa_namereg_get(u->module->core, u->sink_name, PA_NAMEREG_SINK, 1))) - pa_log(__FILE__": failed to get sink '%s'\n", u->sink_name); - else { - pa_volume_t v = pa_cvolume_avg(pa_sink_get_volume(s, PA_MIXER_HARDWARE)); - pa_cvolume cv; -#define DELTA (PA_VOLUME_NORM/20) - - switch (volchange) { - case UP: - v += DELTA; - break; - - case DOWN: - if (v > DELTA) - v -= DELTA; - else - v = PA_VOLUME_MUTED; - - break; - - case MUTE_TOGGLE: { - - if (v > 0) { - u->mute_toggle_save = v; - v = PA_VOLUME_MUTED; - } else - v = u->mute_toggle_save; - } - default: - ; - } - - pa_cvolume_set(&cv, PA_CHANNELS_MAX, v); - pa_sink_set_volume(s, PA_MIXER_HARDWARE, &cv); - } - } - } - } - - return; - -fail: - u->module->core->mainloop->io_free(u->io); - u->io = NULL; - - pa_module_unload_request(u->module); -} - -#define test_bit(bit, array) (array[bit/8] & (1<<(bit%8))) - -int pa__init(pa_core *c, pa_module*m) { - pa_modargs *ma = NULL; - struct userdata *u; - int version; - struct _input_id input_id; - char name[256]; - uint8_t evtype_bitmask[EV_MAX/8 + 1]; - assert(c && m); - - if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { - pa_log(__FILE__": Failed to parse module arguments\n"); - goto fail; - } - - m->userdata = u = pa_xmalloc(sizeof(struct userdata)); - u->module = m; - u->io = NULL; - u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL)); - u->fd = -1; - u->mute_toggle_save = 0; - - if ((u->fd = open(pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), O_RDONLY)) < 0) { - pa_log(__FILE__": failed to open evdev device: %s\n", strerror(errno)); - goto fail; - } - - if (ioctl(u->fd, EVIOCGVERSION, &version) < 0) { - pa_log(__FILE__": EVIOCGVERSION failed: %s\n", strerror(errno)); - goto fail; - } - - pa_log_info(__FILE__": evdev driver version %i.%i.%i\n", version >> 16, (version >> 8) & 0xff, version & 0xff); - - if(ioctl(u->fd, EVIOCGID, &input_id)) { - pa_log(__FILE__": EVIOCGID failed: %s\n", strerror(errno)); - goto fail; - } - - pa_log_info(__FILE__": evdev vendor 0x%04hx product 0x%04hx version 0x%04hx bustype %u\n", - input_id.vendor, input_id.product, input_id.version, input_id.bustype); - - if(ioctl(u->fd, EVIOCGNAME(sizeof(name)), name) < 0) { - pa_log(__FILE__": EVIOCGNAME failed: %s\n", strerror(errno)); - goto fail; - } - - pa_log_info(__FILE__": evdev device name: %s\n", name); - - memset(evtype_bitmask, 0, sizeof(evtype_bitmask)); - if (ioctl(u->fd, EVIOCGBIT(0, EV_MAX), evtype_bitmask) < 0) { - pa_log(__FILE__": EVIOCGBIT failed: %s\n", strerror(errno)); - goto fail; - } - - if (!test_bit(EV_KEY, evtype_bitmask)) { - pa_log(__FILE__": device has no keys.\n"); - goto fail; - } - - u->io = c->mainloop->io_new(c->mainloop, u->fd, PA_IO_EVENT_INPUT|PA_IO_EVENT_HANGUP, io_callback, u); - - pa_modargs_free(ma); - - return 0; - -fail: - - if (ma) - pa_modargs_free(ma); - - pa__done(c, m); - return -1; -} - -void pa__done(pa_core *c, pa_module*m) { - struct userdata *u; - assert(c); - assert(m); - - if (!(u = m->userdata)) - return; - - if (u->io) - m->core->mainloop->io_free(u->io); - - if (u->fd >= 0) - close(u->fd); - - pa_xfree(u->sink_name); - pa_xfree(u); -} |