* add new module module-mmkbd-evdev

* fix stupid error message in main.c



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@337 fefdeb5f-60dc-0310-8127-8f9354f1896f

configure.ac

@@ -174,6 +174,9 @@ AC_SUBST(LIRC_CFLAGS)
 AC_SUBST(LIRC_LIBS)
 AM_CONDITIONAL([HAVE_LIRC], [test "x$HAVE_LIRC" = x1])
 
+AC_CHECK_HEADER(linux/input.h,HAVE_EVDEV=1,HAVE_EVDEV=0)
+AM_CONDITIONAL([HAVE_EVDEV], [test "x$HAVE_EVDEV" = x1])
+
 # If using GCC specify some additional parameters
 if test "x$GCC" = "xyes" ; then
    CFLAGS="$CFLAGS -pipe -W -Wall -pedantic"

doc/todo

@@ -6,6 +6,7 @@ Architectural changes:
 - add API for synchronizing multiple sinks/sources to a common clock
 - absolutely indexed write()s from client
 - remove "polyplib-" prefix
+- hardware volume support
 
 Fixes:
 - improve module-oss-mmap latency measurement
@@ -20,7 +21,6 @@ Features:
 - rendezvous autotunnel module
 - polish for starting polypaudio as root/system-wide instance
 - export connection fd
-- /dev/input/event plugin
 
 Long term:
 - pass meta info for hearing impaired

polyp/Makefile.am

@@ -160,7 +160,8 @@ SYMDEF_FILES= \
 		module-null-sink-symdef.h \
 		module-esound-sink-symdef.h \
 		module-zeroconf-publish-symdef.h \
-		module-lirc-symdef.h
+		module-lirc-symdef.h \
+		module-mmkbd-evdev-symdef.h
 
 EXTRA_DIST+=$(SYMDEF_FILES)
 BUILT_SOURCES+=$(SYMDEF_FILES)
@@ -707,6 +708,21 @@ module_lirc_la_CFLAGS = $(AM_CFLAGS) $(LIRC_CFLAGS)
 
 endif
 
+
+### Linux evdev
+
+if HAVE_EVDEV
+
+modlib_LTLIBRARIES+= \
+		module-mmkbd-evdev.la
+
+module_mmkbd_evdev_la_SOURCES = module-mmkbd-evdev.c
+module_mmkbd_evdev_la_LDFLAGS = -module -avoid-version
+module_mmkbd_evdev_la_LIBADD = $(AM_LIBADD)
+module_mmkbd_evdev_la_CFLAGS = $(AM_CFLAGS)
+
+endif
+
 ### libpolypcore (needs to be updated)
 
 if BUILD_LIBPOLYPCORE

polyp/main.c

@@ -309,6 +309,7 @@ int main(int argc, char *argv[]) {
     
     if (conf->use_pid_file) {
         if (pa_pid_file_create() < 0) {
+            if (conf->daemonize)
                 pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
             goto finish;
         }

polyp/module-lirc.c

@@ -31,7 +31,6 @@
 #include <stdlib.h>
 
 #include "module.h"
-#include "iochannel.h"
 #include "log.h"
 #include "module-lirc-symdef.h"
 #include "namereg.h"

polyp/module-mmkbd-evdev.c

@@ -0,0 +1,225 @@
+/* $Id$ */
+
+/***
+  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"
+
+static const char* const valid_modargs[] = {
+    "device",
+    "sink",
+    NULL,
+};
+
+struct userdata {
+    int fd;
+    struct pa_io_event *io;
+    char *sink_name;
+    struct pa_module *module;
+    float mute_toggle_save;
+};
+
+static void io_callback(struct pa_mainloop_api *io, struct pa_io_event *e, int fd, enum pa_io_event_flags 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 e;
+
+        if (pa_loop_read(u->fd, &e, sizeof(e)) <= 0) {
+            pa_log(__FILE__": failed to read from event device: %s\n", strerror(errno));
+            goto fail;
+        }
+
+        if (e.type == EV_KEY && (e.value == 1 || e.value == 2)) {
+            enum { INVALID, UP, DOWN, MUTE_TOGGLE } volchange = INVALID;
+
+            pa_log_debug(__FILE__": key code=%u, value=%u\n", e.code, e.value);
+
+            switch (e.code) {
+                case KEY_VOLUMEDOWN:  volchange = DOWN; break;
+                case KEY_VOLUMEUP:    volchange = UP; break;
+                case KEY_MUTE:        volchange = MUTE_TOGGLE; break;
+            }
+
+            if (volchange != INVALID) {
+                struct 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 {
+                    double v = pa_volume_to_user(s->volume);
+                    
+                    switch (volchange) {
+                        case UP:       v += .05; break;
+                        case DOWN:     v -= .05; break;
+                        case MUTE_TOGGLE: {
+
+                            if (v > 0) {
+                                u->mute_toggle_save = v;
+                                v = 0;
+                            } else
+                                v = u->mute_toggle_save;
+                        }
+                        default:
+                            ;
+                    }
+                    
+                    pa_sink_set_volume(s, pa_volume_from_user(v));
+                }
+            }
+        }
+    }
+
+    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(struct pa_core *c, struct pa_module*m) {
+    struct 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(struct pa_core *c, struct 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);
+}