#include <sys/un.h>
#include <errno.h>
-#define BT_SUGGESTED_BUFFER_SIZE 128
+#define BT_SUGGESTED_BUFFER_SIZE 512
#define BT_IPC_SOCKET_NAME "\0/org/bluez/audio"
/* Generic message header definition, except for RESPONSE messages */
/* Messages names */
#define BT_GET_CAPABILITIES 0
-#define BT_SET_CONFIGURATION 1
-#define BT_NEW_STREAM 2
-#define BT_START_STREAM 3
-#define BT_STOP_STREAM 4
+#define BT_OPEN 1
+#define BT_SET_CONFIGURATION 2
+#define BT_NEW_STREAM 3
+#define BT_START_STREAM 4
+#define BT_STOP_STREAM 5
+#define BT_CLOSE 6
#define BT_CONTROL 7
#define BT_CAPABILITIES_TRANSPORT_A2DP 0
struct bt_get_capabilities_req {
bt_audio_msg_header_t h;
- char device[18]; /* Address of the remote Device */
+ char source[18]; /* Address of the local Device */
+ char destination[18];/* Address of the remote Device */
+ char object[128]; /* DBus object path */
uint8_t transport; /* Requested transport */
uint8_t flags; /* Requested flags */
+ uint8_t seid; /* Requested capability configuration */
} __attribute__ ((packed));
/**
- * SBC Codec parameters as per A2DP profile 1.0 § 4.3
+ * SBC Codec parameters as per A2DP profile 1.0 § 4.3
*/
-#define BT_A2DP_CODEC_SBC 0x00
-#define BT_A2DP_CODEC_MPEG12 0x01
-#define BT_A2DP_CODEC_MPEG24 0x02
-#define BT_A2DP_CODEC_ATRAC 0x03
+/* A2DP seid are 6 bytes long so HSP/HFP are assigned to 7-8 bits */
+#define BT_A2DP_SEID_RANGE (1 << 6) - 1
+
+#define BT_A2DP_SBC_SOURCE 0x00
+#define BT_A2DP_SBC_SINK 0x01
+#define BT_A2DP_MPEG12_SOURCE 0x02
+#define BT_A2DP_MPEG12_SINK 0x03
+#define BT_A2DP_MPEG24_SOURCE 0x04
+#define BT_A2DP_MPEG24_SINK 0x05
+#define BT_A2DP_ATRAC_SOURCE 0x06
+#define BT_A2DP_ATRAC_SINK 0x07
+#define BT_A2DP_UNKNOWN_SOURCE 0x08
+#define BT_A2DP_UNKNOWN_SINK 0x09
#define BT_SBC_SAMPLING_FREQ_16000 (1 << 3)
#define BT_SBC_SAMPLING_FREQ_32000 (1 << 2)
#define BT_PCM_FLAG_NREC 0x01
#define BT_PCM_FLAG_PCM_ROUTING 0x02
+#define BT_WRITE_LOCK (1 << 1)
+#define BT_READ_LOCK 1
+
typedef struct {
+ uint8_t seid;
uint8_t transport;
uint8_t type;
uint8_t length;
+ uint8_t configured;
+ uint8_t lock;
uint8_t data[0];
} __attribute__ ((packed)) codec_capabilities_t;
struct bt_get_capabilities_rsp {
bt_audio_msg_header_t h;
+ char source[18]; /* Address of the local Device */
+ char destination[18];/* Address of the remote Device */
+ char object[128]; /* DBus object path */
uint8_t data[0]; /* First codec_capabilities_t */
} __attribute__ ((packed));
+struct bt_open_req {
+ bt_audio_msg_header_t h;
+ char source[18]; /* Address of the local Device */
+ char destination[18];/* Address of the remote Device */
+ char object[128]; /* DBus object path */
+ uint8_t seid; /* Requested capability configuration to lock */
+ uint8_t lock; /* Requested lock */
+} __attribute__ ((packed));
+
+struct bt_open_rsp {
+ bt_audio_msg_header_t h;
+ char source[18]; /* Address of the local Device */
+ char destination[18];/* Address of the remote Device */
+ char object[128]; /* DBus object path */
+} __attribute__ ((packed));
+
struct bt_set_configuration_req {
bt_audio_msg_header_t h;
- char device[18]; /* Address of the remote Device */
- uint8_t access_mode; /* Requested access mode */
codec_capabilities_t codec; /* Requested codec */
} __attribute__ ((packed));
struct bt_set_configuration_rsp {
bt_audio_msg_header_t h;
- uint8_t transport; /* Granted transport */
- uint8_t access_mode; /* Granted access mode */
uint16_t link_mtu; /* Max length that transport supports */
} __attribute__ ((packed));
bt_audio_msg_header_t h;
} __attribute__ ((packed));
+struct bt_close_req {
+ bt_audio_msg_header_t h;
+} __attribute__ ((packed));
+
+struct bt_close_rsp {
+ bt_audio_msg_header_t h;
+} __attribute__ ((packed));
+
struct bt_suspend_stream_ind {
bt_audio_msg_header_t h;
} __attribute__ ((packed));
} else if (u->profile == PROFILE_A2DP) {
while (bytes_left > 0) {
- if (codec->type == BT_A2DP_CODEC_SBC)
+ if ((codec->type == BT_A2DP_SBC_SINK) && !codec->lock)
break;
bytes_left -= codec->length;
if (bytes_left <= 0 || codec->length != sizeof(u->a2dp.sbc_capabilities))
return -1;
- pa_assert(codec->type == BT_A2DP_CODEC_SBC);
+ pa_assert(codec->type == BT_A2DP_SBC_SINK);
memcpy(&u->a2dp.sbc_capabilities, codec, sizeof(u->a2dp.sbc_capabilities));
}
msg.getcaps_req.h.name = BT_GET_CAPABILITIES;
msg.getcaps_req.h.length = sizeof(msg.getcaps_req);
- pa_strlcpy(msg.getcaps_req.device, u->address, sizeof(msg.getcaps_req.device));
+ pa_strlcpy(msg.getcaps_req.object, u->path, sizeof(msg.getcaps_req.object));
if (u->profile == PROFILE_A2DP)
msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_A2DP;
else {
static int set_conf(struct userdata *u) {
union {
+ struct bt_open_req open_req;
+ struct bt_open_rsp open_rsp;
struct bt_set_configuration_req setconf_req;
struct bt_set_configuration_rsp setconf_rsp;
bt_audio_error_t error;
uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
} msg;
+ memset(&msg, 0, sizeof(msg));
+ msg.open_req.h.type = BT_REQUEST;
+ msg.open_req.h.name = BT_OPEN;
+ msg.open_req.h.length = sizeof(msg.open_req);
+
+ pa_strlcpy(msg.open_req.object, u->path, sizeof(msg.open_req.object));
+ msg.open_req.seid = u->profile == PROFILE_A2DP ? u->a2dp.sbc_capabilities.capability.seid : BT_A2DP_SEID_RANGE + 1;
+ msg.open_req.lock = u->profile == PROFILE_A2DP ? BT_WRITE_LOCK : BT_READ_LOCK | BT_WRITE_LOCK;
+
+ if (service_send(u, &msg.open_req.h) < 0)
+ return -1;
+
+ if (service_expect(u, &msg.open_rsp.h, sizeof(msg), BT_OPEN, sizeof(msg.open_rsp)) < 0)
+ return -1;
+
if (u->profile == PROFILE_A2DP ) {
u->sample_spec.format = PA_SAMPLE_S16LE;
msg.setconf_req.h.name = BT_SET_CONFIGURATION;
msg.setconf_req.h.length = sizeof(msg.setconf_req);
- pa_strlcpy(msg.setconf_req.device, u->address, sizeof(msg.setconf_req.device));
- msg.setconf_req.access_mode = u->profile == PROFILE_A2DP ? BT_CAPABILITIES_ACCESS_MODE_WRITE : BT_CAPABILITIES_ACCESS_MODE_READWRITE;
-
- msg.setconf_req.codec.transport = u->profile == PROFILE_A2DP ? BT_CAPABILITIES_TRANSPORT_A2DP : BT_CAPABILITIES_TRANSPORT_SCO;
-
if (u->profile == PROFILE_A2DP) {
memcpy(&msg.setconf_req.codec, &u->a2dp.sbc_capabilities, sizeof(u->a2dp.sbc_capabilities));
- msg.setconf_req.h.length += msg.setconf_req.codec.length - sizeof(msg.setconf_req.codec);
+ } else {
+ msg.setconf_req.codec.transport = BT_CAPABILITIES_TRANSPORT_SCO;
+ msg.setconf_req.codec.seid = BT_A2DP_SEID_RANGE + 1;
+ msg.setconf_req.codec.length = sizeof(pcm_capabilities_t);
}
+ msg.setconf_req.h.length += msg.setconf_req.codec.length - sizeof(msg.setconf_req.codec);
if (service_send(u, &msg.setconf_req.h) < 0)
return -1;
if (service_expect(u, &msg.setconf_rsp.h, sizeof(msg), BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp)) < 0)
return -1;
- if ((u->profile == PROFILE_A2DP && msg.setconf_rsp.transport != BT_CAPABILITIES_TRANSPORT_A2DP) ||
- (u->profile == PROFILE_HSP && msg.setconf_rsp.transport != BT_CAPABILITIES_TRANSPORT_SCO)) {
- pa_log("Transport doesn't match what we requested.");
- return -1;
- }
-
- if ((u->profile == PROFILE_A2DP && msg.setconf_rsp.access_mode != BT_CAPABILITIES_ACCESS_MODE_WRITE) ||
- (u->profile == PROFILE_HSP && msg.setconf_rsp.access_mode != BT_CAPABILITIES_ACCESS_MODE_READWRITE)) {
- pa_log("Access mode doesn't match what we requested.");
- return -1;
- }
-
u->link_mtu = msg.setconf_rsp.link_mtu;
/* setup SBC encoder now we agree on parameters */