[Bluez-users] How to enable eSCO in linux 2.6.18?

[Bluez-users] How to enable eSCO in linux 2.6.18?

[\x11]

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Hi All:
        I want to enable eSCO function in linux 2.6.18 for a certain reason.... I know that 2.6.23 with the bluez-2.6.23mh1 patch can enable simple eSCO support. But since i can't upgrade my kernel to 2.6.23+ , is there any patches that can be applied on a 2.6.18 kernel in order to make eSCO connections ?



Thanks




semiyd





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Re: [Bluez-users] How to enable eSCO in linux 2.6.18?

[Sumeet VERMA]

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Hi 
Please find attached the esco patch for 2.6.18

Sumeet 

-----Original Message-----
From: bluez-users-bounces@lists.sourceforge.net
[mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of \x11
Sent: Tuesday, March 25, 2008 11:41 AM
To: bluez-users@lists.sourceforge.net
Subject: [Bluez-users] How to enable eSCO in linux 2.6.18?


Hi All:
        I want to enable eSCO function in linux 2.6.18 for a certain
reason.... I know that 2.6.23 with the bluez-2.6.23mh1 patch can enable
simple eSCO support. But since i can't upgrade my kernel to 2.6.23+ , is
there any patches that can be applied on a 2.6.18 kernel in order to make
eSCO connections ?



Thanks




semiyd





_________________________________________________________________
News, entertainment and everything you care about at Live.com. Get it now!
http://www.live.com/getstarted.aspx


[-- Attachment #2: 2.6.18_esco.patch --]
[-- Type: application/octet-stream, Size: 19133 bytes --]

diff -urN tmp/linux-2.6.18/include/net/bluetooth/bluetooth.h linux-2.6.18/include/net/bluetooth/bluetooth.h
--- tmp/linux-2.6.18/include/net/bluetooth/bluetooth.h	2006-09-20 09:12:06.000000000 +0530
+++ linux-2.6.18/include/net/bluetooth/bluetooth.h	2007-09-20 21:14:06.000000000 +0530
@@ -53,6 +53,23 @@
 #define SOL_SCO		17
 #define SOL_RFCOMM	18
 
+#if 0 
+/* Debugging */
+#define CONFIG_BT_BLUEZ_DEBUG
+
+#ifdef CONFIG_BT_BLUEZ_DEBUG
+#define CONFIG_BT_SOCK_DEBUG		1
+#define CONFIG_BT_HCI_CORE_DEBUG	1
+#define CONFIG_BT_HCI_SOCK_DEBUG	1
+#define CONFIG_BT_RFCOMM_DEBUG 		1
+#define CONFIG_BT_L2CAP_DEBUG		1
+#define CONFIG_BT_SCO_DEBUG		1
+
+#define CONFIG_BT_HCIUART_DEBUG		1
+#define CONFIG_BT_HCIVHCI_DEBUG		1
+#endif /* CONFIG_BT_BLUEZ_DEBUG */
+#endif 
+
 #define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
 #define BT_DBG(fmt, arg...)  printk(KERN_INFO "%s: " fmt "\n" , __FUNCTION__ , ## arg)
 #define BT_ERR(fmt, arg...)  printk(KERN_ERR  "%s: " fmt "\n" , __FUNCTION__ , ## arg)
diff -urN tmp/linux-2.6.18/include/net/bluetooth/hci_core.h linux-2.6.18/include/net/bluetooth/hci_core.h
--- tmp/linux-2.6.18/include/net/bluetooth/hci_core.h	2006-09-20 09:12:06.000000000 +0530
+++ linux-2.6.18/include/net/bluetooth/hci_core.h	2007-11-19 21:56:06.000000000 +0530
@@ -75,6 +75,7 @@
 	__u16		voice_setting;
 
 	__u16		pkt_type;
+	__u16		esco_pkt_type;
 	__u16		link_policy;
 	__u16		link_mode;
 
@@ -413,6 +414,8 @@
 int hci_register_sysfs(struct hci_dev *hdev);
 void hci_unregister_sysfs(struct hci_dev *hdev);
 
+
+
 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 
 /* ----- LMP capabilities ----- */
@@ -420,6 +423,7 @@
 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
+#define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 
 /* ----- HCI protocols ----- */
 struct hci_proto {
diff -urN tmp/linux-2.6.18/include/net/bluetooth/hci.h linux-2.6.18/include/net/bluetooth/hci.h
--- tmp/linux-2.6.18/include/net/bluetooth/hci.h	2006-09-20 09:12:06.000000000 +0530
+++ linux-2.6.18/include/net/bluetooth/hci.h	2007-11-06 02:02:32.000000000 +0530
@@ -128,6 +128,19 @@
 #define SCO_PTYPE_MASK	(HCI_HV1 | HCI_HV2 | HCI_HV3)
 #define ACL_PTYPE_MASK	(~SCO_PTYPE_MASK)
 
+/* eSCO packet types */
+#define HCI_ESCO_HV1	0x0001
+#define HCI_ESCO_HV2	0x0002
+#define HCI_ESCO_HV3	0x0004
+#define HCI_ESCO_EV3	0x0008
+#define HCI_ESCO_EV4	0x0010
+#define HCI_ESCO_EV5	0x0020
+
+/* Some devices seem to have trouble establishing EV* packet connections */
+/* with other devices.  For this reason we mask out the eSCO packets */ 
+/* for now.  Might need to address this later */
+#define ESCO_PTYPE_MASK	(HCI_ESCO_HV1 | HCI_ESCO_HV2 | HCI_ESCO_HV3)
+
 /* ACL flags */
 #define ACL_CONT		0x01
 #define ACL_START		0x02
@@ -137,6 +150,7 @@
 /* Baseband links */
 #define SCO_LINK	0x00
 #define ACL_LINK	0x01
+#define ESCO_LINK	0x02
 
 /* LMP features */
 #define LMP_3SLOT	0x01
@@ -157,6 +171,11 @@
 #define LMP_ULAW	0x40
 #define LMP_ALAW	0x80
 
+/* eSCO support and packets */
+#define LMP_ESCO	0x80
+#define LMP_EV4		0x01
+#define LMP_EV5		0x02
+
 #define LMP_CVSD	0x01
 #define LMP_PSCHEME	0x02
 #define LMP_PCONTROL	0x04
@@ -312,12 +331,29 @@
 	__u8     role;
 } __attribute__ ((packed));
 
+#define OCF_ACCEPT_SYNC_CONN_REQ	0x0029
+struct hci_cp_accept_sync_conn_req {
+	bdaddr_t	bdaddr;
+	__le32		tx_rate;
+	__le32		rx_rate;
+	__le16		max_latency;
+	__le16		voice_setting;
+	__u8		retrans_effort;
+	__le16		pkt_type;
+} __attribute__((packed));
+
 #define OCF_REJECT_CONN_REQ	0x000a
 struct hci_cp_reject_conn_req {
 	bdaddr_t bdaddr;
 	__u8     reason;
 } __attribute__ ((packed));
 
+#define OCF_REJECT_SYNC_CONN_REQ	0x002a
+struct hci_cp_reject_sync_conn_req {
+	bdaddr_t 	bdaddr;
+	__u8		reason;
+} __attribute__ ((packed));
+
 #define OCF_DISCONNECT	0x0006
 struct hci_cp_disconnect {
 	__le16   handle;
@@ -330,6 +366,17 @@
 	__le16   pkt_type;
 } __attribute__ ((packed));
 
+#define OCF_SETUP_SYNC_CONN	0x0028
+struct hci_cp_setup_sync_conn {
+	__le16	handle;
+	__le32 	tx_rate;
+	__le32	rx_rate;
+	__le16	latency;
+	__le16	voice_setting;
+	__u8	retrans_effort;
+	__le16	pkt_type;
+} __attribute__ ((packed));
+
 #define OCF_INQUIRY		0x0001
 struct hci_cp_inquiry {
 	__u8     lap[3];
@@ -516,6 +563,29 @@
 	__u8     encr_mode;
 } __attribute__ ((packed));
 
+#define HCI_EV_SYNC_CONN_COMPLETE	0x2C
+struct hci_ev_sync_conn_complete {
+	__u8 		status;
+	__le16		handle;
+	bdaddr_t	bdaddr;
+	__u8		link_type;
+	__u8		trans_interval;
+	__u8		retrans_window;
+	__le16		rx_pkt_len;
+	__le16		tx_pkt_len;
+	__u8		air_mode;
+} __attribute__ ((packed));
+
+#define HCI_EV_SYNC_CONN_CHANGED       0x2D
+struct hci_ev_sync_conn_changed {
+	__u8		status;
+	__le16		handle;
+	__u8		trans_interval;
+	__u8		retrans_window;
+	__le16		rx_pkt_len;
+	__le16		tx_pkt_len;
+} __attribute__ ((packed));
+
 #define HCI_EV_CONN_REQUEST	0x04
 struct hci_ev_conn_request {
 	bdaddr_t bdaddr;
diff -urN tmp/linux-2.6.18/net/bluetooth/hci_conn.c linux-2.6.18/net/bluetooth/hci_conn.c
--- tmp/linux-2.6.18/net/bluetooth/hci_conn.c	2006-09-20 09:12:06.000000000 +0530
+++ linux-2.6.18/net/bluetooth/hci_conn.c	2007-11-19 22:00:17.000000000 +0530
@@ -100,17 +100,33 @@
 void hci_add_sco(struct hci_conn *conn, __u16 handle)
 {
 	struct hci_dev *hdev = conn->hdev;
-	struct hci_cp_add_sco cp;
 
 	BT_DBG("%p", conn);
 
 	conn->state = BT_CONNECT;
 	conn->out = 1;
 
-	cp.pkt_type = __cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
-	cp.handle   = __cpu_to_le16(handle);
+	/* Devices that support 1.2 should be using the eSCO */
+	/* commands.  Add SCO commands were deprecated in 1.2 */
 
-	hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ADD_SCO, sizeof(cp), &cp);
+	if (lmp_esco_capable(hdev)) {
+		struct hci_cp_setup_sync_conn cp;
+		cp.handle = __cpu_to_le16(handle);
+		cp.tx_rate = __cpu_to_le32(0x1f40);
+		cp.rx_rate = __cpu_to_le32(0x1f40);
+		cp.latency = __cpu_to_le16(0xffff);
+		cp.voice_setting = __cpu_to_le16(hdev->voice_setting);
+		cp.retrans_effort = 0xff;
+		cp.pkt_type = __cpu_to_le16(hdev->esco_pkt_type & ESCO_PTYPE_MASK);
+	
+		hci_send_cmd(hdev, OGF_LINK_CTL, OCF_SETUP_SYNC_CONN, sizeof(cp), &cp);
+	} else {
+		struct hci_cp_add_sco cp;
+		cp.pkt_type = __cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
+		cp.handle   = __cpu_to_le16(handle);
+
+		hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ADD_SCO, sizeof(cp), &cp);
+	}
 }
 
 static void hci_conn_timeout(unsigned long arg)
@@ -194,23 +210,25 @@
 
 	del_timer(&conn->disc_timer);
 
-	if (conn->type == SCO_LINK) {
-		struct hci_conn *acl = conn->link;
-		if (acl) {
-			acl->link = NULL;
-			hci_conn_put(acl);
-		}
-	} else {
+	if (conn->type == ACL_LINK) {
 		struct hci_conn *sco = conn->link;
 		if (sco)
 			sco->link = NULL;
 
 		/* Unacked frames */
 		hdev->acl_cnt += conn->sent;
+	} else {
+		struct hci_conn *acl = conn->link;
+		if (acl) {
+			acl->link = NULL;
+			hci_conn_put(acl);
+		}
 	}
 
 	tasklet_disable(&hdev->tx_task);
 
+//	hci_conn_del_sysfs(conn);
+
 	hci_conn_hash_del(hdev, conn);
 	if (hdev->notify)
 		hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
@@ -270,6 +288,7 @@
 struct hci_conn * hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
 {
 	struct hci_conn *acl;
+	struct hci_conn *sco;
 
 	BT_DBG("%s dst %s", hdev->name, batostr(dst));
 
@@ -283,28 +302,25 @@
 	if (acl->state == BT_OPEN || acl->state == BT_CLOSED)
 		hci_acl_connect(acl);
 
-	if (type == SCO_LINK) {
-		struct hci_conn *sco;
+	if (type == ACL_LINK)
+		return acl;
 
-		if (!(sco = hci_conn_hash_lookup_ba(hdev, SCO_LINK, dst))) {
-			if (!(sco = hci_conn_add(hdev, SCO_LINK, dst))) {
-				hci_conn_put(acl);
-				return NULL;
-			}
+	if (!(sco = hci_conn_hash_lookup_ba(hdev, type, dst))) {
+		if (!(sco = hci_conn_add(hdev, type, dst))) {
+			hci_conn_put(acl);
+			return NULL;
 		}
-		acl->link = sco;
-		sco->link = acl;
+	}
+	acl->link = sco;
+	sco->link = acl;
 
-		hci_conn_hold(sco);
+	hci_conn_hold(sco);
 
-		if (acl->state == BT_CONNECTED && 
-				(sco->state == BT_OPEN || sco->state == BT_CLOSED))
-			hci_add_sco(sco, acl->handle);
+	if (acl->state == BT_CONNECTED && 
+			(sco->state == BT_OPEN || sco->state == BT_CLOSED))
+		hci_add_sco(sco, acl->handle);
 
-		return sco;
-	} else {
-		return acl;
-	}
+	return sco;
 }
 EXPORT_SYMBOL(hci_connect);
 
diff -urN tmp/linux-2.6.18/net/bluetooth/hci_core.c linux-2.6.18/net/bluetooth/hci_core.c
--- tmp/linux-2.6.18/net/bluetooth/hci_core.c	2006-09-20 09:12:06.000000000 +0530
+++ linux-2.6.18/net/bluetooth/hci_core.c	2008-01-29 01:01:32.000000000 +0530
@@ -848,6 +848,7 @@
 
 	hdev->flags = 0;
 	hdev->pkt_type  = (HCI_DM1 | HCI_DH1 | HCI_HV1);
+	hdev->esco_pkt_type = HCI_ESCO_HV1;
 	hdev->link_mode = (HCI_LM_ACCEPT);
 
 	hdev->idle_timeout = 0;
@@ -1390,6 +1391,7 @@
 		/* Process frame */
 		switch (bt_cb(skb)->pkt_type) {
 		case HCI_EVENT_PKT:
+			BT_DBG("%s HCI event packet", hdev->name);
 			hci_event_packet(hdev, skb);
 			break;
 
@@ -1404,6 +1406,7 @@
 			break;
 
 		default:
+			BT_DBG("%s Invalid packet", hdev->name);
 			kfree_skb(skb);
 			break;
 		}
diff -urN tmp/linux-2.6.18/net/bluetooth/hci_event.c linux-2.6.18/net/bluetooth/hci_event.c
--- tmp/linux-2.6.18/net/bluetooth/hci_event.c	2006-09-20 09:12:06.000000000 +0530
+++ linux-2.6.18/net/bluetooth/hci_event.c	2008-01-29 01:02:54.000000000 +0530
@@ -322,13 +322,30 @@
 		if (hdev->features[0] & LMP_5SLOT)
 			hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
 
-		if (hdev->features[1] & LMP_HV2)
-			hdev->pkt_type |= (HCI_HV2);
+		if (hdev->features[1] & LMP_HV2) {
+			hdev->pkt_type  |= HCI_HV2;
+			hdev->esco_pkt_type |= HCI_ESCO_HV2;
+		}
+
+		if (hdev->features[1] & LMP_HV3) {
+			hdev->pkt_type  |= HCI_HV3;
+			hdev->esco_pkt_type |= HCI_ESCO_HV3;
+		}
+
+		if (hdev->features[3] & LMP_ESCO)
+			hdev->esco_pkt_type |= HCI_ESCO_EV3;
+
+		if (hdev->features[4] & LMP_EV4)
+			hdev->esco_pkt_type |= HCI_ESCO_EV4;
+
+		if (hdev->features[4] & LMP_EV5)
+			hdev->esco_pkt_type |= HCI_ESCO_EV5;
+
+		BT_DBG("%s: features 0x%x 0x%x 0x%x", hdev->name,
+				lf->features[0], lf->features[1], lf->features[2]);
 
-		if (hdev->features[1] & LMP_HV3)
-			hdev->pkt_type |= (HCI_HV3);
 
-		BT_DBG("%s: features 0x%x 0x%x 0x%x", hdev->name, lf->features[0], lf->features[1], lf->features[2]);
+		BT_DBG("%s: eSco packets: 0x%x", hdev->name, hdev->esco_pkt_type);
 
 		break;
 
@@ -412,40 +429,76 @@
 	hci_dev_unlock(hdev);
 }
 
-static void hci_cs_link_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
+static inline void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
 {
-	BT_DBG("%s ocf 0x%x", hdev->name, ocf);
+	struct hci_conn *acl, *sco;
+	struct hci_cp_add_sco *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_ADD_SCO);
 
-	switch (ocf) {
-	case OCF_CREATE_CONN:
-		hci_cs_create_conn(hdev, status);
-		break;
+	if (!cp)
+		return;	
 
-	case OCF_ADD_SCO:
-		if (status) {
-			struct hci_conn *acl, *sco;
-			struct hci_cp_add_sco *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_ADD_SCO);
-			__u16 handle;
+	hci_dev_lock(hdev);
 
-			if (!cp)
-				break;
+	if (status) {
+		__u16 handle = __le16_to_cpu(cp->handle);
 
-			handle = __le16_to_cpu(cp->handle);
+		BT_DBG("%s Add SCO error: handle %d status 0x%x", hdev->name, handle, status);
 
-			BT_DBG("%s Add SCO error: handle %d status 0x%x", hdev->name, handle, status);
+		acl = hci_conn_hash_lookup_handle(hdev, handle);
+		if (acl && (sco = acl->link)) {
+			sco->state = BT_CLOSED;
 
-			hci_dev_lock(hdev);
+			hci_proto_connect_cfm(sco, status);
+			hci_conn_del(sco);
+		}
+	}
 
-			acl = hci_conn_hash_lookup_handle(hdev, handle);
-			if (acl && (sco = acl->link)) {
-				sco->state = BT_CLOSED;
+	hci_dev_unlock(hdev);
+}
 
-				hci_proto_connect_cfm(sco, status);
-				hci_conn_del(sco);
-			}
+static inline void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_conn *acl, *sco;
+	struct hci_cp_setup_sync_conn *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_SETUP_SYNC_CONN);
 
-			hci_dev_unlock(hdev);
+	if (!cp)
+		return;	
+
+	hci_dev_lock(hdev);
+
+	if (status) {
+		__u16 handle = __le16_to_cpu(cp->handle);
+
+		BT_DBG("%s eSCO conn setup error: handle %d status 0x%x",
+			hdev->name, handle, status);
+
+		acl = hci_conn_hash_lookup_handle(hdev, handle);
+		if (acl && (sco = acl->link)) {
+			sco->state = BT_CLOSED;
+
+			hci_proto_connect_cfm(sco, status);
+			hci_conn_del(sco);
 		}
+	}
+
+	hci_dev_unlock(hdev);	
+}
+
+static void hci_cs_link_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
+{
+	BT_DBG("%s ocf 0x%x", hdev->name, ocf);
+	
+	switch (ocf) {
+	case OCF_CREATE_CONN:
+		hci_cs_create_conn(hdev, status);
+		break;
+
+	case OCF_ADD_SCO:
+		hci_cs_add_sco(hdev, status);
+		break;
+
+	case OCF_SETUP_SYNC_CONN:
+		hci_cs_setup_sync_conn(hdev, status);
 		break;
 
 	case OCF_INQUIRY:
@@ -669,7 +722,6 @@
 	if (mask & HCI_LM_ACCEPT) {
 		/* Connection accepted */
 		struct hci_conn *conn;
-		struct hci_cp_accept_conn_req cp;
 
 		hci_dev_lock(hdev);
 		conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
@@ -684,23 +736,51 @@
 		conn->state = BT_CONNECT;
 		hci_dev_unlock(hdev);
 
-		bacpy(&cp.bdaddr, &ev->bdaddr);
+		if ((ev->link_type == ACL_LINK) || (!lmp_esco_capable(hdev))) {
+			struct hci_cp_accept_conn_req cp;
+			bacpy(&cp.bdaddr, &ev->bdaddr);
 
-		if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
-			cp.role = 0x00; /* Become master */
-		else
-			cp.role = 0x01; /* Remain slave */
+			if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
+				cp.role = 0x00; /* Become master */
+			else
+				cp.role = 0x01; /* Remain slave */
 
-		hci_send_cmd(hdev, OGF_LINK_CTL,
-				OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
+			hci_send_cmd(hdev, OGF_LINK_CTL,
+					OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
+		} else {
+			/* Send the Accept Sync Connection Command */
+			struct hci_cp_accept_sync_conn_req cp;
+			
+			bacpy(&cp.bdaddr, &ev->bdaddr);
+			cp.tx_rate = __cpu_to_le32(0x1f40);
+			cp.rx_rate = __cpu_to_le32(0x1f40);
+			cp.max_latency = __cpu_to_le16(0xffff);
+			cp.voice_setting = __cpu_to_le16(hdev->voice_setting);
+			cp.retrans_effort = 0xff;
+			cp.pkt_type = __cpu_to_le16(hdev->esco_pkt_type & ESCO_PTYPE_MASK);
+
+			hci_send_cmd(hdev, OGF_LINK_CTL,
+					OCF_ACCEPT_SYNC_CONN_REQ, sizeof(cp), &cp);
+		}
 	} else {
 		/* Connection rejected */
-		struct hci_cp_reject_conn_req cp;
 
-		bacpy(&cp.bdaddr, &ev->bdaddr);
-		cp.reason = 0x0f;
-		hci_send_cmd(hdev, OGF_LINK_CTL,
-				OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
+		if ((ev->link_type == ACL_LINK) || (!lmp_esco_capable(hdev))) {
+			struct hci_cp_reject_conn_req cp;
+
+			bacpy(&cp.bdaddr, &ev->bdaddr);
+			cp.reason = 0x0f;
+			hci_send_cmd(hdev, OGF_LINK_CTL,
+					OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
+		} else {
+			struct hci_cp_reject_sync_conn_req cp;
+			
+			bacpy(&cp.bdaddr, &ev->bdaddr);
+			cp.reason = 0x0f;
+
+			hci_send_cmd(hdev, OGF_LINK_CTL,
+					OCF_REJECT_SYNC_CONN_REQ, sizeof(cp), &cp);
+		}
 	}
 }
 
@@ -780,6 +860,57 @@
 	hci_dev_unlock(hdev);
 }
 
+/* eSCO Connect Complete */
+static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_sync_conn_complete *ev = (struct hci_ev_sync_conn_complete *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	/* There are two possibilities here.  We establish an outgoing ESCO link and get */
+	/* back a SCO link.  Or we got a connect request with a SCO/ESCO link type and */
+	/* arrived here once it was established */
+	conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
+	if (!conn) {
+		/* Incoming SCO case */
+		conn = hci_conn_hash_lookup_ba(hdev, SCO_LINK, &ev->bdaddr);
+		if (!conn) {
+			hci_dev_unlock(hdev);
+			return;
+		}
+
+		if (conn->out) {
+			BT_DBG("ended up with a SCO link");
+			hci_conn_del(conn);
+			hci_dev_unlock(hdev);
+			return;
+		}
+	}
+
+	if (!ev->status) {
+		conn->handle = __le16_to_cpu(ev->handle);
+		conn->type = ev->link_type;
+		conn->state  = BT_CONNECTED;
+
+		if (conn->out) {
+			/* Update disconnect timer */
+			hci_conn_hold(conn);
+			hci_conn_put(conn);
+		}
+	} else
+		conn->state = BT_CLOSED;
+
+	hci_proto_connect_cfm(conn, ev->status);
+	if (ev->status)
+		hci_conn_del(conn);
+
+	hci_dev_unlock(hdev);
+}
+
+
 /* Disconnect Complete */
 static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
@@ -832,12 +963,12 @@
 		if (conn) {
 			conn->sent -= count;
 
-			if (conn->type == SCO_LINK) {
-				if ((hdev->sco_cnt += count) > hdev->sco_pkts)
-					hdev->sco_cnt = hdev->sco_pkts;
-			} else {
+			if (conn->type == ACL_LINK) {
 				if ((hdev->acl_cnt += count) > hdev->acl_pkts)
 					hdev->acl_cnt = hdev->acl_pkts;
+			} else {
+				if ((hdev->sco_cnt += count) > hdev->sco_pkts)
+					hdev->sco_cnt = hdev->sco_pkts;
 			}
 		}
 	}
@@ -1116,6 +1247,10 @@
 		hci_conn_complete_evt(hdev, skb);
 		break;
 
+	case HCI_EV_SYNC_CONN_COMPLETE:
+		hci_sync_conn_complete_evt(hdev, skb);
+		break;
+
 	case HCI_EV_DISCONN_COMPLETE:
 		hci_disconn_complete_evt(hdev, skb);
 		break;
diff -urN tmp/linux-2.6.18/net/bluetooth/sco.c linux-2.6.18/net/bluetooth/sco.c
--- tmp/linux-2.6.18/net/bluetooth/sco.c	2006-09-20 09:12:06.000000000 +0530
+++ linux-2.6.18/net/bluetooth/sco.c	2007-11-06 19:55:38.000000000 +0530
@@ -189,7 +189,7 @@
 	struct sco_conn *conn;
 	struct hci_conn *hcon;
 	struct hci_dev  *hdev;
-	int err = 0;
+	int err, type;
 
 	BT_DBG("%s -> %s", batostr(src), batostr(dst));
 
@@ -200,7 +200,9 @@
 
 	err = -ENOMEM;
 
-	hcon = hci_connect(hdev, SCO_LINK, dst);
+	type = lmp_esco_capable(hdev) ? ESCO_LINK : SCO_LINK;
+
+	hcon = hci_connect(hdev, type, dst);
 	if (!hcon)
 		goto done;
 
@@ -837,6 +839,9 @@
 {
 	BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
 
+	if (type != SCO_LINK && type != ESCO_LINK)
+		return 0;
+
 	/* Always accept connection */
 	return HCI_LM_ACCEPT;
 }
@@ -845,7 +850,7 @@
 {
 	BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
 
-	if (hcon->type != SCO_LINK)
+	if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK)
 		return 0;
 
 	if (!status) {
@@ -864,7 +869,7 @@
 {
 	BT_DBG("hcon %p reason %d", hcon, reason);
 
-	if (hcon->type != SCO_LINK)
+	if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK)
 		return 0;
 
 	sco_conn_del(hcon, bt_err(reason));

[-- Attachment #3: Type: text/plain, Size: 278 bytes --]

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Re: [Bluez-users] How to enable eSCO in linux 2.6.18?

[dong yan]

Hi Sumeet VERMA:

   Thanks a lot!
   As a matter of fact , im using ST's bluetooth chip STLC2500. This
chip can't establish SCO connections under linux 2.6.18, so i had to
try eSCO connection.....that's why i want this esco patch.  i applied
your patch and eSCO seems to be connected. But still there's no sound
coming out of my bluetooth headset...
When i tried to disconnect the esco channel , hcid reports an
error..... Please refer to the details in this log:
(I use 'hstest' from bluez-utils to test the SCO/eSCO.)

 $ hstest play /tmp1/1.wav 00:0D:3C:EB:53:F0 1
Voice setting: 0x0060
hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
RFCOMM channel connected
KERNEL:sco_connect(): type=2,eSCO

SCO audio channel connected (handle 8, mtu 60)
hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)


/ $
/ $ hcid[173]: Disconnection failed: 0x0c

At the sametime , if i use another  USB bluetooth module instead of
STLC2500 , i can hear the music with my bluetooth headset after
established SCO connection.

Please, let me know if you have any other suggestions,thanks!!

semiyd


2008/3/26, Sumeet VERMA <sumeet.verma@st.com>:
> Hi
> Please find attached the esco patch for 2.6.18
>
> Sumeet
>
> -----Original Message-----
> From: bluez-users-bounces@lists.sourceforge.net
> [mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of
> Sent: Tuesday, March 25, 2008 11:41 AM
> To: bluez-users@lists.sourceforge.net
> Subject: [Bluez-users] How to enable eSCO in linux 2.6.18?
>
>
> Hi All:
>        I want to enable eSCO function in linux 2.6.18 for a certain
> reason.... I know that 2.6.23 with the bluez-2.6.23mh1 patch can enable
> simple eSCO support. But since i can't upgrade my kernel to 2.6.23+ , is
> there any patches that can be applied on a 2.6.18 kernel in order to make
> eSCO connections ?
>
>
>
> Thanks
>
>
>
>
> semiyd
>
>
>
>
>
> _________________________________________________________________
> News, entertainment and everything you care about at Live.com. Get it now!
> http://www.live.com/getstarted.aspx
>
>
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
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> Bluez-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-users
>
>
>

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Re: [Bluez-users] How to enable eSCO in linux 2.6.18?

[Sumeet VERMA]

Hi
Are you using a minikit? What is the version of STLC2500 chip you are using?
In case you are using minikit along with motherboard you have to enable the
codec. Otherwise you will not hear any sound.

Regards,
Sumeet 

-----Original Message-----
From: bluez-users-bounces@lists.sourceforge.net
[mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of dong yan
Sent: Wednesday, March 26, 2008 11:30 AM
To: BlueZ users
Subject: Re: [Bluez-users] How to enable eSCO in linux 2.6.18?

Hi Sumeet VERMA:

   Thanks a lot!
   As a matter of fact , im using ST's bluetooth chip STLC2500. This chip
can't establish SCO connections under linux 2.6.18, so i had to try eSCO
connection.....that's why i want this esco patch.  i applied your patch and
eSCO seems to be connected. But still there's no sound coming out of my
bluetooth headset...
When i tried to disconnect the esco channel , hcid reports an error.....
Please refer to the details in this log:
(I use 'hstest' from bluez-utils to test the SCO/eSCO.)

 $ hstest play /tmp1/1.wav 00:0D:3C:EB:53:F0 1 Voice setting: 0x0060
hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
RFCOMM channel connected
KERNEL:sco_connect(): type=2,eSCO

SCO audio channel connected (handle 8, mtu 60)
hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)


/ $
/ $ hcid[173]: Disconnection failed: 0x0c

At the sametime , if i use another  USB bluetooth module instead of STLC2500
, i can hear the music with my bluetooth headset after established SCO
connection.

Please, let me know if you have any other suggestions,thanks!!

semiyd


2008/3/26, Sumeet VERMA <sumeet.verma@st.com>:
> Hi
> Please find attached the esco patch for 2.6.18
>
> Sumeet
>
> -----Original Message-----
> From: bluez-users-bounces@lists.sourceforge.net
> [mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of
> Sent: Tuesday, March 25, 2008 11:41 AM
> To: bluez-users@lists.sourceforge.net
> Subject: [Bluez-users] How to enable eSCO in linux 2.6.18?
>
>
> Hi All:
>        I want to enable eSCO function in linux 2.6.18 for a certain 
> reason.... I know that 2.6.23 with the bluez-2.6.23mh1 patch can 
> enable simple eSCO support. But since i can't upgrade my kernel to 
> 2.6.23+ , is there any patches that can be applied on a 2.6.18 kernel 
> in order to make eSCO connections ?
>
>
>
> Thanks
>
>
>
>
> semiyd
>
>
>
>
>
> _________________________________________________________________
> News, entertainment and everything you care about at Live.com. Get it now!
> http://www.live.com/getstarted.aspx
>
>
> ----------------------------------------------------------------------
> --- Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for just about anything 
> Open Source.
> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marke
> tplace _______________________________________________
> Bluez-users mailing list
> Bluez-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-users
>
>
>

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Re: [Bluez-users] How to enable eSCO in linux 2.6.18?

[dong yan]

[-- Attachment #1: Type: text/plain, Size: 4924 bytes --]

Hey buddy:

 Yes, i'm using a minikit without a motherboard(I don't have a ST
motherboard in hand : ( ). I connect the minikit to my CPU on the
development board with both UART and PCM interface.The version of the
chip is STLC2500C R4.2. I also have ssf file (which can be loaded into
the chip with certain settings)configured with the pcm settings.Please
see the attached file.
 I'll check out my ssf file settings to make sure there's nothing
wrong with my pcm interface settings according to the spec of my
CPU/STLC2500C.Other than that , i have no idea why there's no sound
coming out of the bluetooth headset.....

Thanks!!

semiyd

2008/3/26, Sumeet VERMA <sumeet.verma@st.com>:
> Hi
> Are you using a minikit? What is the version of STLC2500 chip you are using?
> In case you are using minikit along with motherboard you have to enable the
> codec. Otherwise you will not hear any sound.
>
> Regards,
> Sumeet
>
> -----Original Message-----
> From: bluez-users-bounces@lists.sourceforge.net
> [mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of dong yan
> Sent: Wednesday, March 26, 2008 11:30 AM
> To: BlueZ users
> Subject: Re: [Bluez-users] How to enable eSCO in linux 2.6.18?
>
> Hi Sumeet VERMA:
>
>   Thanks a lot!
>   As a matter of fact , im using ST's bluetooth chip STLC2500. This chip
> can't establish SCO connections under linux 2.6.18, so i had to try eSCO
> connection.....that's why i want this esco patch.  i applied your patch and
> eSCO seems to be connected. But still there's no sound coming out of my
> bluetooth headset...
> When i tried to disconnect the esco channel , hcid reports an error.....
> Please refer to the details in this log:
> (I use 'hstest' from bluez-utils to test the SCO/eSCO.)
>
>  $ hstest play /tmp1/1.wav 00:0D:3C:EB:53:F0 1 Voice setting: 0x0060
> hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
> hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
> RFCOMM channel connected
> KERNEL:sco_connect(): type=2,eSCO
>
> SCO audio channel connected (handle 8, mtu 60)
> hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
>
>
> / $
> / $ hcid[173]: Disconnection failed: 0x0c
>
> At the sametime , if i use another  USB bluetooth module instead of STLC2500
> , i can hear the music with my bluetooth headset after established SCO
> connection.
>
> Please, let me know if you have any other suggestions,thanks!!
>
> semiyd
>
>
> 2008/3/26, Sumeet VERMA <sumeet.verma@st.com>:
> > Hi
> > Please find attached the esco patch for 2.6.18
> >
> > Sumeet
> >
> > -----Original Message-----
> > From: bluez-users-bounces@lists.sourceforge.net
> > [mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of
> > Sent: Tuesday, March 25, 2008 11:41 AM
> > To: bluez-users@lists.sourceforge.net
> > Subject: [Bluez-users] How to enable eSCO in linux 2.6.18?
> >
> >
> > Hi All:
> >        I want to enable eSCO function in linux 2.6.18 for a certain
> > reason.... I know that 2.6.23 with the bluez-2.6.23mh1 patch can
> > enable simple eSCO support. But since i can't upgrade my kernel to
> > 2.6.23+ , is there any patches that can be applied on a 2.6.18 kernel
> > in order to make eSCO connections ?
> >
> >
> >
> > Thanks
> >
> >
> >
> >
> > semiyd
> >
> >
> >
> >
> >
> > _________________________________________________________________
> > News, entertainment and everything you care about at Live.com. Get it now!
> > http://www.live.com/getstarted.aspx
> >
> >
> > ----------------------------------------------------------------------
> > --- Check out the new SourceForge.net Marketplace.
> > It's the best place to buy or sell services for just about anything
> > Open Source.
> > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marke
> > tplace _______________________________________________
> > Bluez-users mailing list
> > Bluez-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/bluez-users
> >
> >
> >
>
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for just about anything Open
> Source.
> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
> _______________________________________________
> Bluez-users mailing list
> Bluez-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-users
>
>
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
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> just about anything Open Source.
> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
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> Bluez-users mailing list
> Bluez-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-users
>

[-- Attachment #2: 111.JPG --]
[-- Type: image/jpeg, Size: 63114 bytes --]

[-- Attachment #3: Type: text/plain, Size: 278 bytes --]

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Re: [Bluez-users] How to enable eSCO in linux 2.6.18?

[dong yan]

Hi Sumeet VERMA:

    I'm just writing this to tell you that your esco patch for 2.6.18
works well.I modified some settings within the sff file , use "hstest"
to establish an esco connection and then send the audio data directly
into pcm interface connected to stlc2500. Now i can play/record music
on esco.
    Thanks for the patch!

Best Regards

semiyd

2008/3/26, Sumeet VERMA <sumeet.verma@st.com>:
> Hi
> Are you using a minikit? What is the version of STLC2500 chip you are using?
> In case you are using minikit along with motherboard you have to enable the
> codec. Otherwise you will not hear any sound.
>
> Regards,
> Sumeet
>
> -----Original Message-----
> From: bluez-users-bounces@lists.sourceforge.net
> [mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of dong yan
> Sent: Wednesday, March 26, 2008 11:30 AM
> To: BlueZ users
> Subject: Re: [Bluez-users] How to enable eSCO in linux 2.6.18?
>
> Hi Sumeet VERMA:
>
>   Thanks a lot!
>   As a matter of fact , im using ST's bluetooth chip STLC2500. This chip
> can't establish SCO connections under linux 2.6.18, so i had to try eSCO
> connection.....that's why i want this esco patch.  i applied your patch and
> eSCO seems to be connected. But still there's no sound coming out of my
> bluetooth headset...
> When i tried to disconnect the esco channel , hcid reports an error.....
> Please refer to the details in this log:
> (I use 'hstest' from bluez-utils to test the SCO/eSCO.)
>
>  $ hstest play /tmp1/1.wav 00:0D:3C:EB:53:F0 1 Voice setting: 0x0060
> hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
> hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
> RFCOMM channel connected
> KERNEL:sco_connect(): type=2,eSCO
>
> SCO audio channel connected (handle 8, mtu 60)
> hcid[173]: link_key_request (sba=00:80:E1:00:AB:BA, dba=00:0D:3C:EB:53:F0)
>
>
> / $
> / $ hcid[173]: Disconnection failed: 0x0c
>
> At the sametime , if i use another  USB bluetooth module instead of STLC2500
> , i can hear the music with my bluetooth headset after established SCO
> connection.
>
> Please, let me know if you have any other suggestions,thanks!!
>
> semiyd
>
>
> 2008/3/26, Sumeet VERMA <sumeet.verma@st.com>:
> > Hi
> > Please find attached the esco patch for 2.6.18
> >
> > Sumeet
> >
> > -----Original Message-----
> > From: bluez-users-bounces@lists.sourceforge.net
> > [mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of
> > Sent: Tuesday, March 25, 2008 11:41 AM
> > To: bluez-users@lists.sourceforge.net
> > Subject: [Bluez-users] How to enable eSCO in linux 2.6.18?
> >
> >
> > Hi All:
> >        I want to enable eSCO function in linux 2.6.18 for a certain
> > reason.... I know that 2.6.23 with the bluez-2.6.23mh1 patch can
> > enable simple eSCO support. But since i can't upgrade my kernel to
> > 2.6.23+ , is there any patches that can be applied on a 2.6.18 kernel
> > in order to make eSCO connections ?
> >
> >
> >
> > Thanks
> >
> >
> >
> >
> > semiyd
> >
> >
> >
> >
> >
> > _________________________________________________________________
> > News, entertainment and everything you care about at Live.com. Get it now!
> > http://www.live.com/getstarted.aspx
> >
> >
> > ----------------------------------------------------------------------
> > --- Check out the new SourceForge.net Marketplace.
> > It's the best place to buy or sell services for just about anything
> > Open Source.
> > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marke
> > tplace _______________________________________________
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