-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2005-2006 Lennart Poettering
+
PulseAudio 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,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
-
+
PulseAudio 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 PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
#endif
#include <stdio.h>
-#include <assert.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include "module-mmkbd-evdev-symdef.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>")
+PA_MODULE_AUTHOR("Lennart Poettering");
+PA_MODULE_DESCRIPTION("Multimedia keyboard support via Linux evdev");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(false);
+PA_MODULE_USAGE("device=<evdev device> sink=<sink name> volume_limit=<volume limit> volume_step=<volume change step>");
#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",
+ "volume_limit",
+ "volume_step",
NULL,
};
struct userdata {
- int fd;
+ int fd, fd_type;
pa_io_event *io;
char *sink_name;
pa_module *module;
+ pa_volume_t volume_limit;
+ pa_volume_t volume_step;
};
-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) {
+static void io_callback(pa_mainloop_api *io, pa_io_event *e, int fd, pa_io_event_flags_t events, void*userdata) {
struct userdata *u = userdata;
- assert(io);
- assert(u);
+
+ pa_assert(io);
+ pa_assert(u);
if (events & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR)) {
- pa_log(__FILE__": lost connection to evdev device.");
+ pa_log("Lost connection to evdev device.");
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", pa_cstrerror(errno));
+ if (pa_loop_read(u->fd, &ev, sizeof(ev), &u->fd_type) <= 0) {
+ pa_log("Failed to read from event device: %s", pa_cstrerror(errno));
goto fail;
}
if (ev.type == EV_KEY && (ev.value == 1 || ev.value == 2)) {
- enum { INVALID, UP, DOWN, MUTE_TOGGLE } volchange = INVALID;
+ enum {
+ INVALID,
+ UP,
+ DOWN,
+ MUTE_TOGGLE
+ } volchange = INVALID;
- pa_log_debug(__FILE__": key code=%u, value=%u", ev.code, ev.value);
+ pa_log_debug("Key code=%u, value=%u", 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;
+ 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'", u->sink_name);
+
+ if (!(s = pa_namereg_get(u->module->core, u->sink_name, PA_NAMEREG_SINK)))
+ pa_log("Failed to get sink '%s'", u->sink_name);
else {
- int i;
- pa_cvolume cv = *pa_sink_get_volume(s, PA_MIXER_HARDWARE);
-
-#define DELTA (PA_VOLUME_NORM/20)
-
+ pa_cvolume cv = *pa_sink_get_volume(s, false);
+
switch (volchange) {
case UP:
- for (i = 0; i < cv.channels; i++) {
- cv.values[i] += DELTA;
-
- if (cv.values[i] > PA_VOLUME_NORM)
- cv.values[i] = PA_VOLUME_NORM;
- }
-
- pa_sink_set_volume(s, PA_MIXER_HARDWARE, &cv);
+ pa_cvolume_inc_clamp(&cv, u->volume_step, u->volume_limit);
+ pa_sink_set_volume(s, &cv, true, true);
break;
-
+
case DOWN:
- for (i = 0; i < cv.channels; i++) {
- if (cv.values[i] >= DELTA)
- cv.values[i] -= DELTA;
- else
- cv.values[i] = PA_VOLUME_MUTED;
- }
-
- pa_sink_set_volume(s, PA_MIXER_HARDWARE, &cv);
+ pa_cvolume_dec(&cv, u->volume_step);
+ pa_sink_set_volume(s, &cv, true, true);
break;
-
- case MUTE_TOGGLE:
- pa_sink_set_mute(s, PA_MIXER_HARDWARE, !pa_sink_get_mute(s, PA_MIXER_HARDWARE));
+ case MUTE_TOGGLE:
+ pa_sink_set_mute(s, !pa_sink_get_mute(s, false), true);
break;
case INVALID:
- ;
+ pa_assert_not_reached();
}
}
}
}
return;
-
+
fail:
u->module->core->mainloop->io_free(u->io);
u->io = NULL;
- pa_module_unload_request(u->module);
+ pa_module_unload_request(u->module, true);
}
#define test_bit(bit, array) (array[bit/8] & (1<<(bit%8)))
-
-int pa__init(pa_core *c, pa_module*m) {
+
+int pa__init(pa_module*m) {
+
pa_modargs *ma = NULL;
struct userdata *u;
int version;
- struct _input_id input_id;
+ struct input_id input_id;
char name[256];
uint8_t evtype_bitmask[EV_MAX/8 + 1];
- assert(c && m);
+ pa_volume_t volume_limit = PA_VOLUME_NORM*3/2;
+ pa_volume_t volume_step = PA_VOLUME_NORM/20;
+
+ pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
- pa_log(__FILE__": Failed to parse module arguments");
+ pa_log("Failed to parse module arguments");
goto fail;
}
- m->userdata = u = pa_xmalloc(sizeof(struct userdata));
+ if (pa_modargs_get_value_u32(ma, "volume_limit", &volume_limit) < 0) {
+ pa_log("Failed to parse volume limit");
+ goto fail;
+ }
+
+ if (pa_modargs_get_value_u32(ma, "volume_step", &volume_step) < 0) {
+ pa_log("Failed to parse volume step");
+ goto fail;
+ }
+
+ m->userdata = u = pa_xnew(struct userdata, 1);
u->module = m;
u->io = NULL;
u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));
u->fd = -1;
+ u->fd_type = 0;
+ u->volume_limit = PA_CLAMP_VOLUME(volume_limit);
+ u->volume_step = PA_CLAMP_VOLUME(volume_step);
- if ((u->fd = open(pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), O_RDONLY)) < 0) {
- pa_log(__FILE__": failed to open evdev device: %s", pa_cstrerror(errno));
+ if ((u->fd = pa_open_cloexec(pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), O_RDONLY, 0)) < 0) {
+ pa_log("Failed to open evdev device: %s", pa_cstrerror(errno));
goto fail;
}
if (ioctl(u->fd, EVIOCGVERSION, &version) < 0) {
- pa_log(__FILE__": EVIOCGVERSION failed: %s", pa_cstrerror(errno));
+ pa_log("EVIOCGVERSION failed: %s", pa_cstrerror(errno));
goto fail;
}
- pa_log_info(__FILE__": evdev driver version %i.%i.%i", version >> 16, (version >> 8) & 0xff, version & 0xff);
+ pa_log_info("evdev driver version %i.%i.%i", version >> 16, (version >> 8) & 0xff, version & 0xff);
- if(ioctl(u->fd, EVIOCGID, &input_id)) {
- pa_log(__FILE__": EVIOCGID failed: %s", pa_cstrerror(errno));
+ if (ioctl(u->fd, EVIOCGID, &input_id)) {
+ pa_log("EVIOCGID failed: %s", pa_cstrerror(errno));
goto fail;
}
- pa_log_info(__FILE__": evdev vendor 0x%04hx product 0x%04hx version 0x%04hx bustype %u",
+ pa_log_info("evdev vendor 0x%04hx product 0x%04hx version 0x%04hx bustype %u",
input_id.vendor, input_id.product, input_id.version, input_id.bustype);
memset(name, 0, sizeof(name));
- if(ioctl(u->fd, EVIOCGNAME(sizeof(name)), name) < 0) {
- pa_log(__FILE__": EVIOCGNAME failed: %s", pa_cstrerror(errno));
+ if (ioctl(u->fd, EVIOCGNAME(sizeof(name)), name) < 0) {
+ pa_log("EVIOCGNAME failed: %s", pa_cstrerror(errno));
goto fail;
}
- pa_log_info(__FILE__": evdev device name: %s", name);
+ pa_log_info("evdev device name: %s", 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", pa_cstrerror(errno));
+ pa_log("EVIOCGBIT failed: %s", pa_cstrerror(errno));
goto fail;
}
if (!test_bit(EV_KEY, evtype_bitmask)) {
- pa_log(__FILE__": device has no keys.");
+ pa_log("Device has no keys.");
goto fail;
}
- u->io = c->mainloop->io_new(c->mainloop, u->fd, PA_IO_EVENT_INPUT|PA_IO_EVENT_HANGUP, io_callback, u);
+ u->io = m->core->mainloop->io_new(m->core->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);
+ pa__done(m);
return -1;
}
-void pa__done(pa_core *c, pa_module*m) {
+void pa__done(pa_module*m) {
struct userdata *u;
- assert(c);
- assert(m);
+
+ pa_assert(m);
if (!(u = m->userdata))
return;
m->core->mainloop->io_free(u->io);
if (u->fd >= 0)
- close(u->fd);
+ pa_assert_se(pa_close(u->fd) == 0);
pa_xfree(u->sink_name);
pa_xfree(u);