mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-04 13:29:59 -05:00
Reorganised the source tree. We now have src/ with a couple of subdirs:
* daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Pierre Ossman
parent
5b881e6228
commit
e205b25d65
246 changed files with 724 additions and 689 deletions
250
src/modules/module-mmkbd-evdev.c
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250
src/modules/module-mmkbd-evdev.c
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@ -0,0 +1,250 @@
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/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <assert.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <linux/input.h>
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#include <polypcore/module.h>
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#include <polypcore/log.h>
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#include <polypcore/namereg.h>
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#include <polypcore/sink.h>
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#include <polypcore/xmalloc.h>
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#include <polypcore/modargs.h>
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#include <polypcore/util.h>
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#include "module-mmkbd-evdev-symdef.h"
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PA_MODULE_AUTHOR("Lennart Poettering")
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PA_MODULE_DESCRIPTION("Multimedia keyboard support via Linux evdev")
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PA_MODULE_VERSION(PACKAGE_VERSION)
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PA_MODULE_USAGE("device=<evdev device> sink=<sink name>")
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#define DEFAULT_DEVICE "/dev/input/event0"
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/*
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* This isn't defined in older kernel headers and there is no way of
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* detecting it.
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*/
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struct _input_id {
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__u16 bustype;
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__u16 vendor;
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__u16 product;
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__u16 version;
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};
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static const char* const valid_modargs[] = {
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"device",
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"sink",
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NULL,
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};
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struct userdata {
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int fd;
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pa_io_event *io;
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char *sink_name;
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pa_module *module;
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float mute_toggle_save;
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};
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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) {
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struct userdata *u = userdata;
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assert(io);
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assert(u);
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if (events & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR)) {
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pa_log(__FILE__": lost connection to evdev device.\n");
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goto fail;
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}
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if (events & PA_IO_EVENT_INPUT) {
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struct input_event ev;
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if (pa_loop_read(u->fd, &ev, sizeof(ev)) <= 0) {
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pa_log(__FILE__": failed to read from event device: %s\n", strerror(errno));
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goto fail;
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}
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if (ev.type == EV_KEY && (ev.value == 1 || ev.value == 2)) {
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enum { INVALID, UP, DOWN, MUTE_TOGGLE } volchange = INVALID;
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pa_log_debug(__FILE__": key code=%u, value=%u\n", ev.code, ev.value);
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switch (ev.code) {
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case KEY_VOLUMEDOWN: volchange = DOWN; break;
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case KEY_VOLUMEUP: volchange = UP; break;
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case KEY_MUTE: volchange = MUTE_TOGGLE; break;
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}
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if (volchange != INVALID) {
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pa_sink *s;
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if (!(s = pa_namereg_get(u->module->core, u->sink_name, PA_NAMEREG_SINK, 1)))
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pa_log(__FILE__": failed to get sink '%s'\n", u->sink_name);
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else {
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pa_volume_t v = pa_cvolume_avg(pa_sink_get_volume(s, PA_MIXER_HARDWARE));
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pa_cvolume cv;
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#define DELTA (PA_VOLUME_NORM/20)
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switch (volchange) {
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case UP:
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v += DELTA;
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break;
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case DOWN:
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if (v > DELTA)
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v -= DELTA;
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else
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v = PA_VOLUME_MUTED;
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break;
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case MUTE_TOGGLE: {
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if (v > 0) {
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u->mute_toggle_save = v;
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v = PA_VOLUME_MUTED;
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} else
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v = u->mute_toggle_save;
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}
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default:
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;
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}
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pa_cvolume_set(&cv, PA_CHANNELS_MAX, v);
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pa_sink_set_volume(s, PA_MIXER_HARDWARE, &cv);
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}
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}
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}
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}
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return;
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fail:
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u->module->core->mainloop->io_free(u->io);
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u->io = NULL;
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pa_module_unload_request(u->module);
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}
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#define test_bit(bit, array) (array[bit/8] & (1<<(bit%8)))
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int pa__init(pa_core *c, pa_module*m) {
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pa_modargs *ma = NULL;
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struct userdata *u;
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int version;
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struct _input_id input_id;
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char name[256];
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uint8_t evtype_bitmask[EV_MAX/8 + 1];
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assert(c && m);
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if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
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pa_log(__FILE__": Failed to parse module arguments\n");
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goto fail;
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}
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m->userdata = u = pa_xmalloc(sizeof(struct userdata));
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u->module = m;
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u->io = NULL;
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u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));
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u->fd = -1;
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u->mute_toggle_save = 0;
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if ((u->fd = open(pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), O_RDONLY)) < 0) {
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pa_log(__FILE__": failed to open evdev device: %s\n", strerror(errno));
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goto fail;
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}
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if (ioctl(u->fd, EVIOCGVERSION, &version) < 0) {
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pa_log(__FILE__": EVIOCGVERSION failed: %s\n", strerror(errno));
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goto fail;
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}
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pa_log_info(__FILE__": evdev driver version %i.%i.%i\n", version >> 16, (version >> 8) & 0xff, version & 0xff);
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if(ioctl(u->fd, EVIOCGID, &input_id)) {
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pa_log(__FILE__": EVIOCGID failed: %s\n", strerror(errno));
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goto fail;
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}
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pa_log_info(__FILE__": evdev vendor 0x%04hx product 0x%04hx version 0x%04hx bustype %u\n",
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input_id.vendor, input_id.product, input_id.version, input_id.bustype);
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if(ioctl(u->fd, EVIOCGNAME(sizeof(name)), name) < 0) {
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pa_log(__FILE__": EVIOCGNAME failed: %s\n", strerror(errno));
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goto fail;
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}
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pa_log_info(__FILE__": evdev device name: %s\n", name);
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memset(evtype_bitmask, 0, sizeof(evtype_bitmask));
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if (ioctl(u->fd, EVIOCGBIT(0, EV_MAX), evtype_bitmask) < 0) {
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pa_log(__FILE__": EVIOCGBIT failed: %s\n", strerror(errno));
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goto fail;
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}
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if (!test_bit(EV_KEY, evtype_bitmask)) {
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pa_log(__FILE__": device has no keys.\n");
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goto fail;
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}
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u->io = c->mainloop->io_new(c->mainloop, u->fd, PA_IO_EVENT_INPUT|PA_IO_EVENT_HANGUP, io_callback, u);
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pa_modargs_free(ma);
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return 0;
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fail:
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if (ma)
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pa_modargs_free(ma);
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pa__done(c, m);
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return -1;
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}
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void pa__done(pa_core *c, pa_module*m) {
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struct userdata *u;
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assert(c);
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assert(m);
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if (!(u = m->userdata))
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return;
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if (u->io)
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m->core->mainloop->io_free(u->io);
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if (u->fd >= 0)
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close(u->fd);
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pa_xfree(u->sink_name);
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pa_xfree(u);
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}
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