modernize module-hal-detect.c and check for ALSA pcm_class != modem

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1594 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-08-08 23:49:17 +00:00
parent 26a024622c
commit a69f4705c5

View file

@ -27,7 +27,6 @@
#endif
#include <stdio.h>
#include <assert.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
@ -55,25 +54,6 @@ PA_MODULE_AUTHOR("Shahms King")
PA_MODULE_DESCRIPTION("Detect available audio hardware and load matching drivers")
PA_MODULE_VERSION(PACKAGE_VERSION)
typedef enum {
#ifdef HAVE_ALSA
CAP_ALSA,
#endif
#ifdef HAVE_OSS
CAP_OSS,
#endif
CAP_MAX
} capability_t;
static const char* const capabilities[CAP_MAX] = {
#ifdef HAVE_ALSA
[CAP_ALSA] = "alsa",
#endif
#ifdef HAVE_OSS
[CAP_OSS] = "oss",
#endif
};
struct device {
uint32_t index;
char *udi;
@ -81,13 +61,10 @@ struct device {
struct userdata {
pa_core *core;
LibHalContext *ctx;
capability_t capability;
pa_dbus_connection *conn;
LibHalContext *context;
pa_dbus_connection *connection;
pa_hashmap *devices;
#if defined(HAVE_ALSA) && defined(HAVE_OSS)
int use_oss;
#endif
const char *capability;
};
struct timerdata {
@ -95,23 +72,23 @@ struct timerdata {
char *udi;
};
static const char* get_capability_name(capability_t cap) {
if (cap >= CAP_MAX)
return NULL;
return capabilities[cap];
}
#define CAPABILITY_ALSA "alsa"
#define CAPABILITY_OSS "oss"
static void hal_device_free(struct device* d) {
pa_assert(d);
pa_xfree(d->udi);
pa_xfree(d);
}
static void hal_device_free_cb(void *d, PA_GCC_UNUSED void *data) {
hal_device_free((struct device*) d);
hal_device_free(d);
}
static const char *strip_udi(const char *udi) {
const char *slash;
if ((slash = strrchr(udi, '/')))
return slash+1;
@ -119,6 +96,7 @@ static const char *strip_udi(const char *udi) {
}
#ifdef HAVE_ALSA
typedef enum {
ALSA_TYPE_SINK,
ALSA_TYPE_SOURCE,
@ -126,59 +104,61 @@ typedef enum {
ALSA_TYPE_MAX
} alsa_type_t;
static alsa_type_t hal_device_get_alsa_type(LibHalContext *ctx, const char *udi,
DBusError *error)
{
static alsa_type_t hal_alsa_device_get_type(LibHalContext *context, const char *udi, DBusError *error) {
char *type;
alsa_type_t t;
type = libhal_device_get_property_string(ctx, udi, "alsa.type", error);
if (!type || dbus_error_is_set(error))
return FALSE;
if (!(type = libhal_device_get_property_string(context, udi, "alsa.type", error)))
return ALSA_TYPE_OTHER;
if (!strcmp(type, "playback")) {
if (!strcmp(type, "playback"))
t = ALSA_TYPE_SINK;
} else if (!strcmp(type, "capture")) {
else if (!strcmp(type, "capture"))
t = ALSA_TYPE_SOURCE;
} else {
else
t = ALSA_TYPE_OTHER;
}
libhal_free_string(type);
return t;
}
static int hal_device_get_alsa_card(LibHalContext *ctx, const char *udi,
DBusError *error)
{
return libhal_device_get_property_int(ctx, udi, "alsa.card", error);
static int hal_alsa_device_is_modem(LibHalContext *context, const char *udi, DBusError *error) {
char *class;
int r;
if (!(class = libhal_device_get_property_string(context, udi, "alsa.pcm_class", error)))
return 0;
r = strcmp(class, "modem") == 0;
pa_xfree(class);
return r;
}
static int hal_device_get_alsa_device(LibHalContext *ctx, const char *udi,
DBusError *error)
{
return libhal_device_get_property_int(ctx, udi, "alsa.device", error);
}
static pa_module* hal_device_load_alsa(struct userdata *u, const char *udi,
DBusError *error)
{
static pa_module* hal_device_load_alsa(struct userdata *u, const char *udi) {
char args[128];
alsa_type_t type;
int device, card;
const char *module_name;
DBusError error;
type = hal_device_get_alsa_type(u->ctx, udi, error);
if (dbus_error_is_set(error) || type == ALSA_TYPE_OTHER)
return NULL;
dbus_error_init(&error);
device = hal_device_get_alsa_device(u->ctx, udi, error);
if (dbus_error_is_set(error) || device != 0)
return NULL;
type = hal_alsa_device_get_type(u->context, udi, &error);
if (dbus_error_is_set(&error) || type == ALSA_TYPE_OTHER)
goto fail;
card = hal_device_get_alsa_card(u->ctx, udi, error);
if (dbus_error_is_set(error))
return NULL;
device = libhal_device_get_property_int(u->context, udi, "alsa.device", &error);
if (dbus_error_is_set(&error) || device != 0)
goto fail;
card = libhal_device_get_property_int(u->context, udi, "alsa.card", &error);
if (dbus_error_is_set(&error))
goto fail;
if (hal_alsa_device_is_modem(u->context, udi, &error))
goto fail;
if (type == ALSA_TYPE_SINK) {
module_name = "module-alsa-sink";
@ -191,58 +171,67 @@ static pa_module* hal_device_load_alsa(struct userdata *u, const char *udi,
pa_log_debug("Loading %s with arguments '%s'", module_name, args);
return pa_module_load(u->core, module_name, args);
fail:
if (dbus_error_is_set(&error)) {
pa_log_error("D-Bus error while parsing ALSA data: %s: %s", error.name, error.message);
dbus_error_free(&error);
}
return NULL;
}
#endif
#ifdef HAVE_OSS
static dbus_bool_t hal_device_is_oss_pcm(LibHalContext *ctx, const char *udi,
DBusError *error)
{
dbus_bool_t rv = FALSE;
char* type, *device_file = NULL;
static int hal_oss_device_is_pcm(LibHalContext *context, const char *udi, DBusError *error) {
char *class = NULL, *dev = NULL, *e;
int device;
int r = 0;
type = libhal_device_get_property_string(ctx, udi, "oss.type", error);
if (!type || dbus_error_is_set(error))
return FALSE;
class = libhal_device_get_property_string(context, udi, "oss.type", error);
if (dbus_error_is_set(error) || !class)
goto finish;
if (!strcmp(type, "pcm")) {
char *e;
if (strcmp(class, "pcm"))
goto finish;
device = libhal_device_get_property_int(ctx, udi, "oss.device", error);
dev = libhal_device_get_property_string(context, udi, "oss.device_file", error);
if (dbus_error_is_set(error) || !dev)
goto finish;
if ((e = strrchr(dev, '/')))
if (pa_startswith(e + 1, "audio"))
goto finish;
device = libhal_device_get_property_int(context, udi, "oss.device", error);
if (dbus_error_is_set(error) || device != 0)
goto exit;
goto finish;
device_file = libhal_device_get_property_string(ctx, udi, "oss.device_file",
error);
if (!device_file || dbus_error_is_set(error))
goto exit;
r = 1;
/* hack to ignore /dev/audio style devices */
if ((e = strrchr(device_file, '/')))
rv = !pa_startswith(e + 1, "audio");
finish:
libhal_free_string(class);
libhal_free_string(dev);
return r;
}
exit:
libhal_free_string(type);
libhal_free_string(device_file);
return rv;
}
static pa_module* hal_device_load_oss(struct userdata *u, const char *udi,
DBusError *error)
{
static pa_module* hal_device_load_oss(struct userdata *u, const char *udi) {
char args[256];
char* device;
DBusError error;
if (!hal_device_is_oss_pcm(u->ctx, udi, error) || dbus_error_is_set(error))
return NULL;
dbus_error_init(&error);
device = libhal_device_get_property_string(u->ctx, udi, "oss.device_file",
error);
if (!device || dbus_error_is_set(error))
return NULL;
if (!hal_oss_device_is_pcm(u->context, udi, &error) || dbus_error_is_set(&error))
goto fail;
device = libhal_device_get_property_string(u->context, udi, "oss.device_file", &error);
if (!device || dbus_error_is_set(&error))
goto fail;
pa_snprintf(args, sizeof(args), "device=%s sink_name=oss_output.%s source_name=oss_input.%s", device, strip_udi(udi), strip_udi(udi));
libhal_free_string(device);
@ -250,139 +239,167 @@ static pa_module* hal_device_load_oss(struct userdata *u, const char *udi,
pa_log_debug("Loading module-oss with arguments '%s'", args);
return pa_module_load(u->core, "module-oss", args);
fail:
if (dbus_error_is_set(&error)) {
pa_log_error("D-Bus error while parsing OSS data: %s: %s", error.name, error.message);
dbus_error_free(&error);
}
return NULL;
}
#endif
static dbus_bool_t hal_device_add(struct userdata *u, const char *udi,
DBusError *error)
{
static int hal_device_add(struct userdata *u, const char *udi) {
pa_module* m = NULL;
struct device *d;
switch(u->capability) {
pa_assert(u);
pa_assert(u->capability);
#ifdef HAVE_ALSA
case CAP_ALSA:
m = hal_device_load_alsa(u, udi, error);
break;
if (strcmp(u->capability, CAPABILITY_ALSA) == 0)
m = hal_device_load_alsa(u, udi);
#endif
#ifdef HAVE_OSS
case CAP_OSS:
#ifdef HAVE_ALSA
if (u->use_oss)
if (strcmp(u->capability, CAPABILITY_OSS) == 0)
m = hal_device_load_oss(u, udi);
#endif
m = hal_device_load_oss(u, udi, error);
break;
#endif
default:
assert(FALSE); /* never reached */
break;
}
if (!m || dbus_error_is_set(error))
return FALSE;
if (!m)
return -1;
d = pa_xnew(struct device, 1);
d->udi = pa_xstrdup(udi);
d->index = m->index;
pa_hashmap_put(u->devices, d->udi, d);
return TRUE;
return 0;
}
static int hal_device_add_all(struct userdata *u, capability_t capability)
{
static int hal_device_add_all(struct userdata *u, const char *capability) {
DBusError error;
int i,n,count;
dbus_bool_t r;
int i, n, count = 0;
char** udis;
const char* cap = get_capability_name(capability);
assert(capability < CAP_MAX);
pa_assert(u);
pa_assert(!u->capability);
pa_log_info("Trying capability %u (%s)", capability, cap);
dbus_error_init(&error);
udis = libhal_find_device_by_capability(u->ctx, cap, &n, &error);
pa_log_info("Trying capability %s", capability);
udis = libhal_find_device_by_capability(u->context, capability, &n, &error);
if (dbus_error_is_set(&error)) {
pa_log_error("Error finding devices: %s: %s", error.name,
error.message);
pa_log_error("Error finding devices: %s: %s", error.name, error.message);
dbus_error_free(&error);
return -1;
}
count = 0;
if (n > 0) {
u->capability = capability;
for (i = 0; i < n; ++i) {
r = hal_device_add(u, udis[i], &error);
if (dbus_error_is_set(&error)) {
pa_log_error("Error adding device: %s: %s", error.name,
error.message);
dbus_error_free(&error);
count = -1;
break;
for (i = 0; i < n; i++) {
if (hal_device_add(u, udis[i]) < 0)
pa_log_debug("Not loaded device %s", udis[i]);
else
count++;
}
if (r)
++count;
}
libhal_free_string_array(udis);
return count;
}
static dbus_bool_t device_has_capability(LibHalContext *ctx, const char *udi,
const char* cap, DBusError *error)
{
static dbus_bool_t device_has_capability(LibHalContext *context, const char *udi, const char* cap, DBusError *error){
dbus_bool_t has_prop;
has_prop = libhal_device_property_exists(ctx, udi, "info.capabilities",
error);
has_prop = libhal_device_property_exists(context, udi, "info.capabilities", error);
if (!has_prop || dbus_error_is_set(error))
return FALSE;
return libhal_device_query_capability(ctx, udi, cap, error);
return libhal_device_query_capability(context, udi, cap, error);
}
static void device_added_time_cb(pa_mainloop_api *ea, pa_time_event *ev,
const struct timeval *tv, void *userdata)
{
static void device_added_time_cb(pa_mainloop_api *ea, pa_time_event *ev, const struct timeval *tv, void *userdata) {
DBusError error;
struct timerdata *td = (struct timerdata*) userdata;
struct timerdata *td = userdata;
int b;
dbus_error_init(&error);
if (libhal_device_exists(td->u->ctx, td->udi, &error))
hal_device_add(td->u, td->udi, &error);
b = libhal_device_exists(td->u->context, td->udi, &error);
if (dbus_error_is_set(&error)) {
pa_log_error("Error adding device: %s: %s", error.name,
error.message);
pa_log_error("Error adding device: %s: %s", error.name, error.message);
dbus_error_free(&error);
}
} else if (b)
hal_device_add(td->u, td->udi);
pa_xfree(td->udi);
pa_xfree(td);
ea->time_free(ev);
}
static void device_added_cb(LibHalContext *ctx, const char *udi)
{
static void device_added_cb(LibHalContext *context, const char *udi) {
DBusError error;
struct timeval tv;
dbus_bool_t has_cap;
struct timerdata *t;
struct userdata *u = (struct userdata*) libhal_ctx_get_user_data(ctx);
const char* cap = get_capability_name(u->capability);
struct userdata *u;
int good = 0;
pa_assert_se(u = libhal_ctx_get_user_data(context));
pa_log_debug("HAL Device added: %s", udi);
dbus_error_init(&error);
has_cap = device_has_capability(ctx, udi, cap, &error);
if (u->capability) {
good = device_has_capability(context, udi, u->capability, &error);
if (dbus_error_is_set(&error)) {
pa_log_error("Error getting capability: %s: %s", error.name,
error.message);
pa_log_error("Error getting capability: %s: %s", error.name, error.message);
dbus_error_free(&error);
return;
}
/* skip it */
if (!has_cap)
} else {
#ifdef HAVE_ALSA
good = device_has_capability(context, udi, CAPABILITY_ALSA, &error);
if (dbus_error_is_set(&error)) {
pa_log_error("Error getting capability: %s: %s", error.name, error.message);
dbus_error_free(&error);
return;
}
if (good)
u->capability = CAPABILITY_ALSA;
#endif
#if defined(HAVE_OSS) && defined(HAVE_ALSA)
if (!good) {
#endif
#ifdef HAS_OSS
good = device_has_capability(context, udi, CAPABILITY_OSS, &error);
if (dbus_error_is_set(&error)) {
pa_log_error("Error getting capability: %s: %s", error.name, error.message);
dbus_error_free(&error);
return;
}
if (good)
u->capability = CAPABILITY_OSS;
#endif
#if defined(HAVE_OSS) && defined(HAVE_ALSA)
}
#endif
}
if (!good)
return;
/* actually add the device 1/2 second later */
@ -392,104 +409,81 @@ static void device_added_cb(LibHalContext *ctx, const char *udi)
pa_gettimeofday(&tv);
pa_timeval_add(&tv, 500000);
u->core->mainloop->time_new(u->core->mainloop, &tv,
device_added_time_cb, t);
u->core->mainloop->time_new(u->core->mainloop, &tv, device_added_time_cb, t);
}
static void device_removed_cb(LibHalContext* ctx, const char *udi)
{
static void device_removed_cb(LibHalContext* context, const char *udi) {
struct device *d;
struct userdata *u = (struct userdata*) libhal_ctx_get_user_data(ctx);
struct userdata *u;
pa_assert_se(u = libhal_ctx_get_user_data(context));
pa_log_debug("Device removed: %s", udi);
if ((d = pa_hashmap_remove(u->devices, udi))) {
pa_module_unload_by_index(u->core, d->index);
hal_device_free(d);
}
}
static void new_capability_cb(LibHalContext *ctx, const char *udi,
const char* capability)
{
struct userdata *u = (struct userdata*) libhal_ctx_get_user_data(ctx);
const char* capname = get_capability_name(u->capability);
static void new_capability_cb(LibHalContext *context, const char *udi, const char* capability) {
struct userdata *u;
if (capname && !strcmp(capname, capability)) {
pa_assert_se(u = libhal_ctx_get_user_data(context));
if (!u->capability || strcmp(u->capability, capability) == 0)
/* capability we care about, pretend it's a new device */
device_added_cb(ctx, udi);
}
device_added_cb(context, udi);
}
static void lost_capability_cb(LibHalContext *ctx, const char *udi,
const char* capability)
{
struct userdata *u = (struct userdata*) libhal_ctx_get_user_data(ctx);
const char* capname = get_capability_name(u->capability);
static void lost_capability_cb(LibHalContext *context, const char *udi, const char* capability) {
struct userdata *u;
if (capname && !strcmp(capname, capability)) {
pa_assert_se(u = libhal_ctx_get_user_data(context));
if (u->capability && strcmp(u->capability, capability) == 0)
/* capability we care about, pretend it was removed */
device_removed_cb(ctx, udi);
}
device_removed_cb(context, udi);
}
#if 0
static void property_modified_cb(LibHalContext *ctx, const char *udi,
const char* key,
dbus_bool_t is_removed,
dbus_bool_t is_added)
{
}
#endif
static void pa_hal_context_free(LibHalContext* hal_ctx)
{
static void hal_context_free(LibHalContext* hal_context) {
DBusError error;
dbus_error_init(&error);
libhal_ctx_shutdown(hal_ctx, &error);
libhal_ctx_free(hal_ctx);
if (dbus_error_is_set(&error)) {
libhal_ctx_shutdown(hal_context, &error);
libhal_ctx_free(hal_context);
if (dbus_error_is_set(&error))
dbus_error_free(&error);
}
}
static void userdata_free(struct userdata *u) {
pa_hal_context_free(u->ctx);
/* free the devices with the hashmap */
pa_hashmap_free(u->devices, hal_device_free_cb, NULL);
pa_dbus_connection_unref(u->conn);
pa_xfree(u);
}
static LibHalContext* pa_hal_context_new(pa_core* c, DBusConnection *conn)
{
static LibHalContext* hal_context_new(pa_core* c, DBusConnection *conn) {
DBusError error;
LibHalContext *hal_ctx = NULL;
LibHalContext *hal_context = NULL;
dbus_error_init(&error);
if (!(hal_ctx = libhal_ctx_new())) {
if (!(hal_context = libhal_ctx_new())) {
pa_log_error("libhal_ctx_new() failed");
goto fail;
}
if (!libhal_ctx_set_dbus_connection(hal_ctx, conn)) {
pa_log_error("Error establishing DBUS connection: %s: %s",
error.name, error.message);
if (!libhal_ctx_set_dbus_connection(hal_context, conn)) {
pa_log_error("Error establishing DBUS connection: %s: %s", error.name, error.message);
goto fail;
}
if (!libhal_ctx_init(hal_ctx, &error)) {
pa_log_error("Couldn't connect to hald: %s: %s",
error.name, error.message);
if (!libhal_ctx_init(hal_context, &error)) {
pa_log_error("Couldn't connect to hald: %s: %s", error.name, error.message);
goto fail;
}
return hal_ctx;
return hal_context;
fail:
if (hal_ctx)
pa_hal_context_free(hal_ctx);
if (hal_context)
hal_context_free(hal_context);
if (dbus_error_is_set(&error))
dbus_error_free(&error);
@ -501,78 +495,82 @@ int pa__init(pa_core *c, pa_module*m) {
DBusError error;
pa_dbus_connection *conn;
struct userdata *u = NULL;
LibHalContext *hal_ctx = NULL;
LibHalContext *hal_context = NULL;
int n = 0;
assert(c);
assert(m);
pa_assert(c);
pa_assert(m);
dbus_error_init(&error);
if (!(conn = pa_dbus_bus_get(c, DBUS_BUS_SYSTEM, &error))) {
pa_log_error("Unable to contact DBUS system bus: %s: %s",
error.name, error.message);
pa_log_error("Unable to contact DBUS system bus: %s: %s", error.name, error.message);
dbus_error_free(&error);
return -1;
}
if (!(hal_ctx = pa_hal_context_new(c, pa_dbus_connection_get(conn)))) {
if (!(hal_context = hal_context_new(c, pa_dbus_connection_get(conn)))) {
/* pa_hal_context_new() logs appropriate errors */
pa_dbus_connection_unref(conn);
return -1;
}
u = pa_xnew(struct userdata, 1);
u->core = c;
u->ctx = hal_ctx;
u->conn = conn;
u->devices = pa_hashmap_new(pa_idxset_string_hash_func,
pa_idxset_string_compare_func);
m->userdata = (void*) u;
u->context = hal_context;
u->connection = conn;
u->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
u->capability = NULL;
m->userdata = u;
#ifdef HAVE_ALSA
n = hal_device_add_all(u, CAP_ALSA);
n = hal_device_add_all(u, CAPABILITY_ALSA);
#endif
#if defined(HAVE_ALSA) && defined(HAVE_OSS)
u->use_oss = 0;
if (n <= 0) {
if (n <= 0)
#endif
#ifdef HAVE_OSS
n += hal_device_add_all(u, CAP_OSS);
#endif
#if defined(HAVE_ALSA) && defined(HAVE_OSS)
/* We found something with OSS, but didn't find anything with
* ALSA. Then let's use only OSS from now on. */
if (n > 0)
u->use_oss = 1;
}
n += hal_device_add_all(u, CAPABILITY_OSS);
#endif
libhal_ctx_set_user_data(hal_ctx, u);
libhal_ctx_set_device_added(hal_ctx, device_added_cb);
libhal_ctx_set_device_removed(hal_ctx, device_removed_cb);
libhal_ctx_set_device_new_capability(hal_ctx, new_capability_cb);
libhal_ctx_set_device_lost_capability(hal_ctx, lost_capability_cb);
/*libhal_ctx_set_device_property_modified(hal_ctx, property_modified_cb);*/
libhal_ctx_set_user_data(hal_context, u);
libhal_ctx_set_device_added(hal_context, device_added_cb);
libhal_ctx_set_device_removed(hal_context, device_removed_cb);
libhal_ctx_set_device_new_capability(hal_context, new_capability_cb);
libhal_ctx_set_device_lost_capability(hal_context, lost_capability_cb);
dbus_error_init(&error);
if (!libhal_device_property_watch_all(hal_ctx, &error)) {
pa_log_error("error monitoring device list: %s: %s",
error.name, error.message);
if (!libhal_device_property_watch_all(hal_context, &error)) {
pa_log_error("Error monitoring device list: %s: %s", error.name, error.message);
dbus_error_free(&error);
userdata_free(u);
pa__done(c, m);
return -1;
}
pa_log_info("loaded %i modules.", n);
pa_log_info("Loaded %i modules.", n);
return 0;
}
void pa__done(PA_GCC_UNUSED pa_core *c, pa_module *m) {
assert (c && m);
struct userdata *u;
/* free the user data */
userdata_free(m->userdata);
pa_assert(c);
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->context)
hal_context_free(u->context);
if (u->devices)
pa_hashmap_free(u->devices, hal_device_free_cb, NULL);
if (u->connection)
pa_dbus_connection_unref(u->connection);
pa_xfree(u);
}