Bluetooth: GMAP: Add GMAP BSIM test

Add BSIM testing of GMAP, with all spec-specified audio
configuration combinations added and tested.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>

tests/bsim/bluetooth/audio/prj.conf

@@ -14,9 +14,9 @@ CONFIG_BT_MAX_PAIRED=3
 CONFIG_BT_EXT_ADV_MAX_ADV_SET=3
 CONFIG_BT_GATT_DYNAMIC_DB=y
 CONFIG_BT_SMP=y
-CONFIG_BT_L2CAP_TX_MTU=100
-CONFIG_BT_BUF_ACL_TX_SIZE=104
-CONFIG_BT_BUF_ACL_RX_SIZE=104
+CONFIG_BT_L2CAP_TX_MTU=128
+CONFIG_BT_BUF_ACL_RX_SIZE=255
+CONFIG_BT_BUF_ACL_TX_SIZE=251
 
 CONFIG_BT_AUDIO=y
 CONFIG_BT_BAP_UNICAST_SERVER=y
@@ -144,6 +144,9 @@ CONFIG_BT_PAC_SNK_LOC_WRITEABLE=y
 CONFIG_BT_PAC_SRC_LOC_WRITEABLE=y
 CONFIG_BT_GATT_AUTO_DISCOVER_CCC=y
 
+# Gaming Audio Profile
+CONFIG_BT_GMAP=y
+
 # DEBUGGING
 CONFIG_LOG=y
 CONFIG_LOG_FUNC_NAME_PREFIX_ERR=y
@@ -182,20 +185,34 @@ CONFIG_BT_HAS_LOG_LEVEL_DBG=y
 CONFIG_BT_HAS_CLIENT_LOG_LEVEL_DBG=y
 CONFIG_BT_CAP_ACCEPTOR_LOG_LEVEL_DBG=y
 CONFIG_BT_CAP_INITIATOR_LOG_LEVEL_DBG=y
+CONFIG_BT_GMAP_LOG_LEVEL_DBG=y
 
 # LOGGING
 CONFIG_LOG_MODE_IMMEDIATE=y
 
-# Controller Broadcast ISO configs
+# Controller Settings
+CONFIG_BT_LL_SW_SPLIT=y
+CONFIG_BT_CTLR_PHY_CODED=y
+CONFIG_BT_CTLR_ADVANCED_FEATURES=y
+CONFIG_BT_CTLR_ADV_AUX_PDU_BACK2BACK=y
+CONFIG_BT_CTLR_ADV_SYNC_PDU_BACK2BACK=y
+CONFIG_BT_CTLR_ADV_DATA_BUF_MAX=6
+CONFIG_BT_CTLR_ADV_RESERVE_MAX=n
+CONFIG_BT_CTLR_CENTRAL_RESERVE_MAX=n
+CONFIG_BT_CTLR_SCAN_UNRESERVED=y
 CONFIG_BT_CTLR_ADV_ISO=y
-CONFIG_BT_CTLR_SYNC_ISO=y
 CONFIG_BT_CTLR_SCAN_DATA_LEN_MAX=255
 CONFIG_BT_CTLR_ISO_TX_BUFFER_SIZE=251
 CONFIG_BT_CTLR_ADV_DATA_LEN_MAX=191
+CONFIG_BT_CTLR_ISO_TX_BUFFERS=8
+CONFIG_BT_CTLR_ISO_RX_BUFFERS=1
+
+# Controller ISO Broadcast Settings
+CONFIG_BT_CTLR_SYNC_ISO=y
 CONFIG_BT_CTLR_ADV_ISO_STREAM_COUNT=1
 CONFIG_BT_CTLR_SYNC_ISO_STREAM_MAX=1
 
-# Controller Connected ISO configs
+# Controller ISO Unicast Settings
 CONFIG_BT_CTLR_CENTRAL_ISO=y
 CONFIG_BT_CTLR_PERIPHERAL_ISO=y
 CONFIG_BT_CTLR_ISOAL_SOURCES=2
@@ -213,3 +230,5 @@ CONFIG_BT_CTLR_SCAN_UNRESERVED=y
 CONFIG_BT_TICKER_NEXT_SLOT_GET_MATCH=y
 CONFIG_BT_TICKER_EXT=y
 CONFIG_BT_TICKER_EXT_SLOT_WINDOW_YIELD=y
+CONFIG_BT_CTLR_CONN_ISO_STREAMS=2
+CONFIG_BT_CTLR_CONN_ISO_STREAMS_PER_GROUP=2

tests/bsim/bluetooth/audio/src/bap_unicast_common.c → tests/bsim/bluetooth/audio/src/bap_common.c

@@ -4,8 +4,10 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <zephyr/sys/byteorder.h>
+
 #include "common.h"
-#include "bap_unicast_common.h"
+#include "bap_common.h"
 
 void print_hex(const uint8_t *ptr, size_t len)
 {
@@ -79,6 +81,42 @@ void print_qos(const struct bt_audio_codec_qos *qos)
 {
 	printk("QoS: interval %u framing 0x%02x phy 0x%02x sdu %u "
 	       "rtn %u latency %u pd %u\n",
-	       qos->interval, qos->framing, qos->phy, qos->sdu,
-	       qos->rtn, qos->latency, qos->pd);
+	       qos->interval, qos->framing, qos->phy, qos->sdu, qos->rtn, qos->latency, qos->pd);
+}
+
+int set_chan_alloc(enum bt_audio_location loc, struct bt_audio_codec_cfg *codec_cfg)
+{
+	for (size_t i = 0U; i < codec_cfg->data_len;) {
+		const uint8_t len = codec_cfg->data[i++];
+		uint8_t value_len;
+		uint8_t *value;
+		uint8_t type;
+
+		if (len == 0 || len > codec_cfg->data_len - i) {
+			/* Invalid len field */
+			return false;
+		}
+
+		type = codec_cfg->data[i++];
+		value = &codec_cfg->data[i];
+		value_len = len - sizeof(type);
+
+		if (type == BT_AUDIO_CODEC_CONFIG_LC3_CHAN_ALLOC) {
+			const uint32_t loc_32 = loc;
+
+			sys_put_le32(loc_32, value);
+
+			return 0;
+		}
+		i += value_len;
+	}
+
+	return -ENODATA;
+}
+
+void copy_unicast_stream_preset(struct unicast_stream *stream,
+				const struct named_lc3_preset *named_preset)
+{
+	memcpy(&stream->qos, &named_preset->preset.qos, sizeof(stream->qos));
+	memcpy(&stream->codec_cfg, &named_preset->preset.codec_cfg, sizeof(stream->codec_cfg));
 }

tests/bsim/bluetooth/audio/src/bap_common.h

@@ -0,0 +1,98 @@
+/**
+ * Common functions and helpers for audio BSIM audio tests
+ *
+ * Copyright (c) 2021-2023 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_TEST_BSIM_BT_AUDIO_TEST_COMMON_
+#define ZEPHYR_TEST_BSIM_BT_AUDIO_TEST_COMMON_
+
+#include <zephyr/bluetooth/bluetooth.h>
+#include <zephyr/bluetooth/audio/audio.h>
+#include <zephyr/bluetooth/audio/bap_lc3_preset.h>
+#include <zephyr/bluetooth/audio/cap.h>
+
+#define LONG_META 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, \
+		  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, \
+		  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, \
+		  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, \
+		  0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, \
+		  0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, \
+		  0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, \
+		  0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, \
+		  0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, \
+		  0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, \
+		  0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, \
+		  0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, \
+		  0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, \
+		  0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, \
+		  0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, \
+		  0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f
+
+#define LONG_META_LEN (sizeof((uint8_t []){LONG_META}) + 1U) /* Size of data + type */
+
+struct unicast_stream {
+	struct bt_cap_stream stream;
+	struct bt_audio_codec_cfg codec_cfg;
+	struct bt_audio_codec_qos qos;
+};
+
+struct named_lc3_preset {
+	const char *name;
+	struct bt_bap_lc3_preset preset;
+};
+
+void print_hex(const uint8_t *ptr, size_t len);
+void print_codec_cap(const struct bt_audio_codec_cap *codec_cap);
+void print_codec_cfg(const struct bt_audio_codec_cfg *codec_cfg);
+void print_qos(const struct bt_audio_codec_qos *qos);
+int set_chan_alloc(enum bt_audio_location loc, struct bt_audio_codec_cfg *codec_cfg);
+void copy_unicast_stream_preset(struct unicast_stream *stream,
+				const struct named_lc3_preset *named_preset);
+
+static inline bool valid_metadata_type(uint8_t type, uint8_t len)
+{
+	switch (type) {
+	case BT_AUDIO_METADATA_TYPE_PREF_CONTEXT:
+	case BT_AUDIO_METADATA_TYPE_STREAM_CONTEXT:
+		if (len != 2) {
+			return false;
+		}
+
+		return true;
+	case BT_AUDIO_METADATA_TYPE_STREAM_LANG:
+		if (len != 3) {
+			return false;
+		}
+
+		return true;
+	case BT_AUDIO_METADATA_TYPE_PARENTAL_RATING:
+		if (len != 1) {
+			return false;
+		}
+
+		return true;
+	case BT_AUDIO_METADATA_TYPE_EXTENDED: /* 1 - 255 octets */
+	case BT_AUDIO_METADATA_TYPE_VENDOR:   /* 1 - 255 octets */
+		if (len < 1) {
+			return false;
+		}
+
+		return true;
+	case BT_AUDIO_METADATA_TYPE_CCID_LIST: /* 2 - 254 octets */
+		if (len < 2) {
+			return false;
+		}
+
+		return true;
+	case BT_AUDIO_METADATA_TYPE_PROGRAM_INFO:     /* 0 - 255 octets */
+	case BT_AUDIO_METADATA_TYPE_PROGRAM_INFO_URI: /* 0 - 255 octets */
+		return true;
+	default:
+		return false;
+	}
+}
+
+#endif /* ZEPHYR_TEST_BSIM_BT_AUDIO_TEST_COMMON_ */

tests/bsim/bluetooth/audio/src/bap_unicast_client_test.c

@@ -12,7 +12,7 @@
 #include <zephyr/bluetooth/audio/bap_lc3_preset.h>
 #include <zephyr/bluetooth/audio/pacs.h>
 #include "common.h"
-#include "bap_unicast_common.h"
+#include "bap_common.h"
 
 #define BAP_STREAM_RETRY_WAIT K_MSEC(100)
 

tests/bsim/bluetooth/audio/src/bap_unicast_server_test.c

@@ -11,7 +11,7 @@
 #include <zephyr/bluetooth/audio/bap.h>
 #include <zephyr/bluetooth/audio/pacs.h>
 #include "common.h"
-#include "bap_unicast_common.h"
+#include "bap_common.h"
 
 extern enum bst_result_t bst_result;
 

tests/bsim/bluetooth/audio/src/cap_acceptor_test.c

@@ -12,7 +12,7 @@
 #include <zephyr/bluetooth/audio/pacs.h>
 #include <zephyr/sys/byteorder.h>
 #include "common.h"
-#include "bap_unicast_common.h"
+#include "bap_common.h"
 
 extern enum bst_result_t bst_result;
 
@@ -62,44 +62,6 @@ static struct bt_cap_stream unicast_streams[CONFIG_BT_ASCS_ASE_SNK_COUNT +
 
 CREATE_FLAG(flag_unicast_stream_configured);
 
-static bool valid_metadata_type(uint8_t type, uint8_t len)
-{
-	switch (type) {
-	case BT_AUDIO_METADATA_TYPE_PREF_CONTEXT:
-	case BT_AUDIO_METADATA_TYPE_STREAM_CONTEXT:
-		if (len != 2) {
-			return false;
-		}
-
-		return true;
-	case BT_AUDIO_METADATA_TYPE_STREAM_LANG:
-		if (len != 3) {
-			return false;
-		}
-
-		return true;
-	case BT_AUDIO_METADATA_TYPE_PARENTAL_RATING:
-		if (len != 1) {
-			return false;
-		}
-
-		return true;
-	case BT_AUDIO_METADATA_TYPE_EXTENDED: /* 2 - 255 octets */
-	case BT_AUDIO_METADATA_TYPE_VENDOR:   /* 2 - 255 octets */
-		if (len < 2) {
-			return false;
-		}
-
-		return true;
-	case BT_AUDIO_METADATA_TYPE_CCID_LIST:
-	case BT_AUDIO_METADATA_TYPE_PROGRAM_INFO:     /* 0 - 255 octets */
-	case BT_AUDIO_METADATA_TYPE_PROGRAM_INFO_URI: /* 0 - 255 octets */
-		return true;
-	default:
-		return false;
-	}
-}
-
 static bool subgroup_data_func_cb(struct bt_data *data, void *user_data)
 {
 	bool *stream_context_found = (bool *)user_data;

tests/bsim/bluetooth/audio/src/cap_initiator_unicast_test.c

@@ -13,7 +13,7 @@
 #include <zephyr/bluetooth/audio/bap.h>
 #include <zephyr/sys/byteorder.h>
 #include "common.h"
-#include "bap_unicast_common.h"
+#include "bap_common.h"
 
 #define UNICAST_SINK_SUPPORTED (CONFIG_BT_BAP_UNICAST_CLIENT_ASE_SNK_COUNT > 0)
 #define UNICAST_SRC_SUPPORTED  (CONFIG_BT_BAP_UNICAST_CLIENT_ASE_SRC_COUNT > 0)
@@ -27,17 +27,6 @@
 #define CONTEXT  (BT_AUDIO_CONTEXT_TYPE_UNSPECIFIED)
 #define LOCATION (BT_AUDIO_LOCATION_FRONT_LEFT | BT_AUDIO_LOCATION_FRONT_RIGHT)
 
-struct unicast_stream {
-	struct bt_cap_stream stream;
-	struct bt_audio_codec_cfg codec_cfg;
-	struct bt_audio_codec_qos qos;
-};
-
-struct named_lc3_preset {
-	const char *name;
-	struct bt_bap_lc3_preset preset;
-};
-
 struct cap_initiator_ac_param {
 	char *name;
 	size_t conn_cnt;
@@ -64,8 +53,8 @@ static struct bt_bap_ep
 static struct unicast_stream unicast_streams[CAP_AC_MAX_STREAM];
 static struct bt_conn *connected_conns[CAP_AC_MAX_CONN];
 static size_t connected_conn_cnt;
-const struct named_lc3_preset *snk_named_preset;
-const struct named_lc3_preset *src_named_preset;
+static const struct named_lc3_preset *snk_named_preset;
+static const struct named_lc3_preset *src_named_preset;
 
 CREATE_FLAG(flag_discovered);
 CREATE_FLAG(flag_codec_found);
@@ -940,15 +929,6 @@ const struct named_lc3_preset *cap_get_named_preset(const char *preset_arg)
 	return NULL;
 }
 
-static inline void copy_unicast_stream_preset(struct unicast_stream *stream,
-					      const struct named_lc3_preset *named_preset)
-{
-	printk("stream %p\n", stream);
-	printk("named_preset %p\n", named_preset);
-	memcpy(&stream->qos, &named_preset->preset.qos, sizeof(stream->qos));
-	memcpy(&stream->codec_cfg, &named_preset->preset.codec_cfg, sizeof(stream->codec_cfg));
-}
-
 static int cap_initiator_ac_create_unicast_group(const struct cap_initiator_ac_param *param,
 						 struct unicast_stream *snk_uni_streams[],
 						 size_t snk_cnt,