diff mbox series

[v15,01/13] Bluetooth: Enumerate local supported codec and cache details

Message ID 20210907101249.7323-1-kiran.k@intel.com
State Accepted
Commit 7e4b8acd8a34921c5fa6d437dea836e0d2506ab1
Headers show
Series [v15,01/13] Bluetooth: Enumerate local supported codec and cache details | expand

Commit Message

K, Kiran Sept. 7, 2021, 10:12 a.m. UTC
Move reading of supported local codecs into a separate init function,
query codecs capabilities and cache the data

Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Signed-off-by: Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>
---

Notes:
    * changes in v15:
     - No changes
    
    * changes in v14:
     - No changes
    
    * changes in v13:
     - No changes
    
    * changes in v12:
     - refactor funcions related to reading codec capabilities
    
    * changes in v11:
     - Remove Kconfig related changes
     - Address minor review comments
     - Move codec related functions to new file hci_codec.c
    
    * changes in v10:
     - define Kconfig to control offload feature at build time
     - fix review comments
    
    * changes in v9:
      - use shortname vnd instead of ven
    
    * changes in v8:
      - add comments
      - split __u8 codec_id[5] into {__u8 id; __le16 cid, vid }
      - address review comment related codec caps structure
    
    * changes in v7:
      - keep codec enumeration call in hci_init instead of having a separate
        function
      - Remove unused bitmasks defined for LE transports
    
    * changes  in v6:
      - fix compiler warning reported for ARCH=arc
    
    * changes in v5:
      - fix review comments
      - move code used to read standard/vendor codecs caps into single function
    
    * changes in v4:
      - convert  reading of codecs and codecs caps calls from async to sync
    
    * changes in v3
      - move codec enumeration into a new init function
    
    * changes in v2
      - add skb length check before accessing data

 include/net/bluetooth/hci.h      |  41 ++++++++
 include/net/bluetooth/hci_core.h |  17 +++
 net/bluetooth/Makefile           |   2 +-
 net/bluetooth/hci_codec.c        | 172 +++++++++++++++++++++++++++++++
 net/bluetooth/hci_codec.h        |   6 ++
 net/bluetooth/hci_core.c         |  11 +-
 6 files changed, 244 insertions(+), 5 deletions(-)
 create mode 100644 net/bluetooth/hci_codec.c
 create mode 100644 net/bluetooth/hci_codec.h

Comments

bluez.test.bot@gmail.com Sept. 7, 2021, 11:05 a.m. UTC | #1
This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=543031

---Test result---

Test Summary:
CheckPatch                    FAIL      1.52 seconds
GitLint                       FAIL      0.77 seconds
BuildKernel                   PASS      548.49 seconds
TestRunner: Setup             PASS      366.22 seconds
TestRunner: l2cap-tester      PASS      2.59 seconds
TestRunner: bnep-tester       PASS      1.93 seconds
TestRunner: mgmt-tester       FAIL      31.19 seconds
TestRunner: rfcomm-tester     PASS      2.13 seconds
TestRunner: sco-tester        PASS      2.07 seconds
TestRunner: smp-tester        PASS      2.19 seconds
TestRunner: userchan-tester   PASS      1.93 seconds

Details
##############################
Test: CheckPatch - FAIL - 1.52 seconds
Run checkpatch.pl script with rule in .checkpatch.conf
Bluetooth: Enumerate local supported codec and cache details
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#126: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 313 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

"[PATCH] Bluetooth: Enumerate local supported codec and cache details" has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.


##############################
Test: GitLint - FAIL - 0.77 seconds
Run gitlint with rule in .gitlint
Bluetooth: Add support for HCI_Enhanced_Setup_Synchronous_Connection command
1: T1 Title exceeds max length (76>72): "Bluetooth: Add support for HCI_Enhanced_Setup_Synchronous_Connection command"


##############################
Test: BuildKernel - PASS - 548.49 seconds
Build Kernel with minimal configuration supports Bluetooth


##############################
Test: TestRunner: Setup - PASS - 366.22 seconds
Setup environment for running Test Runner


##############################
Test: TestRunner: l2cap-tester - PASS - 2.59 seconds
Run test-runner with l2cap-tester
Total: 40, Passed: 40 (100.0%), Failed: 0, Not Run: 0

##############################
Test: TestRunner: bnep-tester - PASS - 1.93 seconds
Run test-runner with bnep-tester
Total: 1, Passed: 1 (100.0%), Failed: 0, Not Run: 0

##############################
Test: TestRunner: mgmt-tester - FAIL - 31.19 seconds
Run test-runner with mgmt-tester
Total: 452, Passed: 451 (99.8%), Failed: 1, Not Run: 0

Failed Test Cases
Read Exp Feature - Success                           Failed       0.012 seconds

##############################
Test: TestRunner: rfcomm-tester - PASS - 2.13 seconds
Run test-runner with rfcomm-tester
Total: 9, Passed: 9 (100.0%), Failed: 0, Not Run: 0

##############################
Test: TestRunner: sco-tester - PASS - 2.07 seconds
Run test-runner with sco-tester
Total: 8, Passed: 8 (100.0%), Failed: 0, Not Run: 0

##############################
Test: TestRunner: smp-tester - PASS - 2.19 seconds
Run test-runner with smp-tester
Total: 8, Passed: 8 (100.0%), Failed: 0, Not Run: 0

##############################
Test: TestRunner: userchan-tester - PASS - 1.93 seconds
Run test-runner with userchan-tester
Total: 3, Passed: 3 (100.0%), Failed: 0, Not Run: 0



---
Regards,
Linux Bluetooth
Luiz Augusto von Dentz Sept. 7, 2021, 10:06 p.m. UTC | #2
Hi Kiran,

On Tue, Sep 7, 2021 at 4:07 AM <bluez.test.bot@gmail.com> wrote:
>
> This is automated email and please do not reply to this email!
>
> Dear submitter,
>
> Thank you for submitting the patches to the linux bluetooth mailing list.
> This is a CI test results with your patch series:
> PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=543031
>
> ---Test result---
>
> Test Summary:
> CheckPatch                    FAIL      1.52 seconds
> GitLint                       FAIL      0.77 seconds
> BuildKernel                   PASS      548.49 seconds
> TestRunner: Setup             PASS      366.22 seconds
> TestRunner: l2cap-tester      PASS      2.59 seconds
> TestRunner: bnep-tester       PASS      1.93 seconds
> TestRunner: mgmt-tester       FAIL      31.19 seconds
> TestRunner: rfcomm-tester     PASS      2.13 seconds
> TestRunner: sco-tester        PASS      2.07 seconds
> TestRunner: smp-tester        PASS      2.19 seconds
> TestRunner: userchan-tester   PASS      1.93 seconds
>
> Details
> ##############################
> Test: CheckPatch - FAIL - 1.52 seconds
> Run checkpatch.pl script with rule in .checkpatch.conf
> Bluetooth: Enumerate local supported codec and cache details
> WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
> #126:
> new file mode 100644
>
> total: 0 errors, 1 warnings, 0 checks, 313 lines checked
>
> NOTE: For some of the reported defects, checkpatch may be able to
>       mechanically convert to the typical style using --fix or --fix-inplace.
>
> "[PATCH] Bluetooth: Enumerate local supported codec and cache details" has style problems, please review.
>
> NOTE: If any of the errors are false positives, please report
>       them to the maintainer, see CHECKPATCH in MAINTAINERS.
>
>
> ##############################
> Test: GitLint - FAIL - 0.77 seconds
> Run gitlint with rule in .gitlint
> Bluetooth: Add support for HCI_Enhanced_Setup_Synchronous_Connection command
> 1: T1 Title exceeds max length (76>72): "Bluetooth: Add support for HCI_Enhanced_Setup_Synchronous_Connection command"
>
>
> ##############################
> Test: BuildKernel - PASS - 548.49 seconds
> Build Kernel with minimal configuration supports Bluetooth
>
>
> ##############################
> Test: TestRunner: Setup - PASS - 366.22 seconds
> Setup environment for running Test Runner
>
>
> ##############################
> Test: TestRunner: l2cap-tester - PASS - 2.59 seconds
> Run test-runner with l2cap-tester
> Total: 40, Passed: 40 (100.0%), Failed: 0, Not Run: 0
>
> ##############################
> Test: TestRunner: bnep-tester - PASS - 1.93 seconds
> Run test-runner with bnep-tester
> Total: 1, Passed: 1 (100.0%), Failed: 0, Not Run: 0
>
> ##############################
> Test: TestRunner: mgmt-tester - FAIL - 31.19 seconds
> Run test-runner with mgmt-tester
> Total: 452, Passed: 451 (99.8%), Failed: 1, Not Run: 0
>
> Failed Test Cases
> Read Exp Feature - Success                           Failed       0.012 seconds
>
> ##############################
> Test: TestRunner: rfcomm-tester - PASS - 2.13 seconds
> Run test-runner with rfcomm-tester
> Total: 9, Passed: 9 (100.0%), Failed: 0, Not Run: 0
>
> ##############################
> Test: TestRunner: sco-tester - PASS - 2.07 seconds
> Run test-runner with sco-tester
> Total: 8, Passed: 8 (100.0%), Failed: 0, Not Run: 0
>
> ##############################
> Test: TestRunner: smp-tester - PASS - 2.19 seconds
> Run test-runner with smp-tester
> Total: 8, Passed: 8 (100.0%), Failed: 0, Not Run: 0
>
> ##############################
> Test: TestRunner: userchan-tester - PASS - 1.93 seconds
> Run test-runner with userchan-tester
> Total: 3, Passed: 3 (100.0%), Failed: 0, Not Run: 0
>
>
>
> ---
> Regards,
> Linux Bluetooth

Applied, thanks.
diff mbox series

Patch

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index bb6b7398f490..13a93da6b76c 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1308,6 +1308,28 @@  struct hci_rp_read_data_block_size {
 } __packed;
 
 #define HCI_OP_READ_LOCAL_CODECS	0x100b
+struct hci_std_codecs {
+	__u8	num;
+	__u8	codec[];
+} __packed;
+
+struct hci_vnd_codec {
+	/* company id */
+	__le16	cid;
+	/* vendor codec id */
+	__le16	vid;
+} __packed;
+
+struct hci_vnd_codecs {
+	__u8	num;
+	struct hci_vnd_codec codec[];
+} __packed;
+
+struct hci_rp_read_local_supported_codecs {
+	__u8	status;
+	struct hci_std_codecs std_codecs;
+	struct hci_vnd_codecs vnd_codecs;
+} __packed;
 
 #define HCI_OP_READ_LOCAL_PAIRING_OPTS	0x100c
 struct hci_rp_read_local_pairing_opts {
@@ -1316,6 +1338,25 @@  struct hci_rp_read_local_pairing_opts {
 	__u8     max_key_size;
 } __packed;
 
+#define HCI_OP_READ_LOCAL_CODEC_CAPS	0x100e
+struct hci_op_read_local_codec_caps {
+	__u8	id;
+	__le16	cid;
+	__le16	vid;
+	__u8	transport;
+	__u8	direction;
+} __packed;
+
+struct hci_codec_caps {
+	__u8	len;
+	__u8	data[];
+} __packed;
+
+struct hci_rp_read_local_codec_caps {
+	__u8	status;
+	__u8	num_caps;
+} __packed;
+
 #define HCI_OP_READ_PAGE_SCAN_ACTIVITY	0x0c1b
 struct hci_rp_read_page_scan_activity {
 	__u8     status;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 24ad6ebd00e2..585cbe7ff67d 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -131,6 +131,17 @@  struct bdaddr_list {
 	u8 bdaddr_type;
 };
 
+struct codec_list {
+	struct list_head list;
+	u8	id;
+	__u16	cid;
+	__u16	vid;
+	u8	transport;
+	u8	num_caps;
+	u32	len;
+	struct hci_codec_caps caps[];
+};
+
 struct bdaddr_list_with_irk {
 	struct list_head list;
 	bdaddr_t bdaddr;
@@ -536,6 +547,7 @@  struct hci_dev {
 	struct list_head	pend_le_conns;
 	struct list_head	pend_le_reports;
 	struct list_head	blocked_keys;
+	struct list_head	local_codecs;
 
 	struct hci_dev_stats	stat;
 
@@ -1870,4 +1882,9 @@  void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
 #define SCO_AIRMODE_CVSD       0x0000
 #define SCO_AIRMODE_TRANSP     0x0003
 
+#define LOCAL_CODEC_ACL_MASK	BIT(0)
+#define LOCAL_CODEC_SCO_MASK	BIT(1)
+
+#define TRANSPORT_TYPE_MAX	0x04
+
 #endif /* __HCI_CORE_H */
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index cc0995301f93..f3e439d98b85 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -14,7 +14,7 @@  bluetooth_6lowpan-y := 6lowpan.o
 
 bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
 	hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o lib.o \
-	ecdh_helper.o hci_request.o mgmt_util.o mgmt_config.o
+	ecdh_helper.o hci_request.o mgmt_util.o mgmt_config.o hci_codec.o
 
 bluetooth-$(CONFIG_BT_BREDR) += sco.o
 bluetooth-$(CONFIG_BT_HS) += a2mp.o amp.o
diff --git a/net/bluetooth/hci_codec.c b/net/bluetooth/hci_codec.c
new file mode 100644
index 000000000000..f86ca6ba5814
--- /dev/null
+++ b/net/bluetooth/hci_codec.c
@@ -0,0 +1,172 @@ 
+// SPDX-License-Identifier: GPL-2.0
+
+/* Copyright (C) 2021 Intel Corporation */
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include "hci_codec.h"
+
+static int hci_codec_list_add(struct list_head *list,
+			      struct hci_op_read_local_codec_caps *sent,
+			      struct hci_rp_read_local_codec_caps *rp,
+			      void *caps,
+			      __u32 len)
+{
+	struct codec_list *entry;
+
+	entry = kzalloc(sizeof(*entry) + len, GFP_KERNEL);
+	if (!entry)
+		return -ENOMEM;
+
+	entry->id = sent->id;
+	if (sent->id == 0xFF) {
+		entry->cid = __le16_to_cpu(sent->cid);
+		entry->vid = __le16_to_cpu(sent->vid);
+	}
+	entry->transport = sent->transport;
+	entry->len = len;
+	entry->num_caps = rp->num_caps;
+	if (rp->num_caps)
+		memcpy(entry->caps, caps, len);
+	list_add(&entry->list, list);
+
+	return 0;
+}
+
+void hci_codec_list_clear(struct list_head *codec_list)
+{
+	struct codec_list *c, *n;
+
+	list_for_each_entry_safe(c, n, codec_list, list) {
+		list_del(&c->list);
+		kfree(c);
+	}
+}
+
+static void hci_read_codec_capabilities(struct hci_dev *hdev, __u8 transport,
+					struct hci_op_read_local_codec_caps
+					*cmd)
+{
+	__u8 i;
+
+	for (i = 0; i < TRANSPORT_TYPE_MAX; i++) {
+		if (transport & BIT(i)) {
+			struct hci_rp_read_local_codec_caps *rp;
+			struct hci_codec_caps *caps;
+			struct sk_buff *skb;
+			__u8 j;
+			__u32 len;
+
+			cmd->transport = i;
+			skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_CODEC_CAPS,
+					     sizeof(*cmd), cmd,
+					     HCI_CMD_TIMEOUT);
+			if (IS_ERR(skb)) {
+				bt_dev_err(hdev, "Failed to read codec capabilities (%ld)",
+					   PTR_ERR(skb));
+				continue;
+			}
+
+			if (skb->len < sizeof(*rp))
+				goto error;
+
+			rp = (void *)skb->data;
+
+			if (rp->status)
+				goto error;
+
+			if (!rp->num_caps) {
+				len = 0;
+				/* this codec doesn't have capabilities */
+				goto skip_caps_parse;
+			}
+
+			skb_pull(skb, sizeof(*rp));
+
+			for (j = 0, len = 0; j < rp->num_caps; j++) {
+				caps = (void *)skb->data;
+				if (skb->len < sizeof(*caps))
+					goto error;
+				if (skb->len < caps->len)
+					goto error;
+				len += sizeof(caps->len) + caps->len;
+				skb_pull(skb,  sizeof(caps->len) + caps->len);
+			}
+
+skip_caps_parse:
+			hci_dev_lock(hdev);
+			hci_codec_list_add(&hdev->local_codecs, cmd, rp,
+					   (__u8 *)rp + sizeof(*rp), len);
+			hci_dev_unlock(hdev);
+error:
+			kfree_skb(skb);
+		}
+	}
+}
+
+void hci_read_supported_codecs(struct hci_dev *hdev)
+{
+	struct sk_buff *skb;
+	struct hci_rp_read_local_supported_codecs *rp;
+	struct hci_std_codecs *std_codecs;
+	struct hci_vnd_codecs *vnd_codecs;
+	struct hci_op_read_local_codec_caps caps;
+	__u8 i;
+
+	skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_CODECS, 0, NULL,
+			     HCI_CMD_TIMEOUT);
+
+	if (IS_ERR(skb)) {
+		bt_dev_err(hdev, "Failed to read local supported codecs (%ld)",
+			   PTR_ERR(skb));
+		return;
+	}
+
+	if (skb->len < sizeof(*rp))
+		goto error;
+
+	rp = (void *)skb->data;
+
+	if (rp->status)
+		goto error;
+
+	skb_pull(skb, sizeof(rp->status));
+
+	std_codecs = (void *)skb->data;
+
+	/* validate codecs length before accessing */
+	if (skb->len < flex_array_size(std_codecs, codec, std_codecs->num)
+	    + sizeof(std_codecs->num))
+		goto error;
+
+	/* enumerate codec capabilities of standard codecs */
+	memset(&caps, 0, sizeof(caps));
+	for (i = 0; i < std_codecs->num; i++) {
+		caps.id = std_codecs->codec[i];
+		caps.direction = 0x00;
+		hci_read_codec_capabilities(hdev, LOCAL_CODEC_ACL_MASK, &caps);
+	}
+
+	skb_pull(skb, flex_array_size(std_codecs, codec, std_codecs->num)
+		 + sizeof(std_codecs->num));
+
+	vnd_codecs = (void *)skb->data;
+
+	/* validate vendor codecs length before accessing */
+	if (skb->len <
+	    flex_array_size(vnd_codecs, codec, vnd_codecs->num)
+	    + sizeof(vnd_codecs->num))
+		goto error;
+
+	/* enumerate vendor codec capabilities */
+	for (i = 0; i < vnd_codecs->num; i++) {
+		caps.id = 0xFF;
+		caps.cid = vnd_codecs->codec[i].cid;
+		caps.vid = vnd_codecs->codec[i].vid;
+		caps.direction = 0x00;
+		hci_read_codec_capabilities(hdev, LOCAL_CODEC_ACL_MASK, &caps);
+	}
+
+error:
+	kfree_skb(skb);
+}
diff --git a/net/bluetooth/hci_codec.h b/net/bluetooth/hci_codec.h
new file mode 100644
index 000000000000..efb0df634ac6
--- /dev/null
+++ b/net/bluetooth/hci_codec.h
@@ -0,0 +1,6 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Copyright (C) 2014 Intel Corporation */
+
+void hci_read_supported_codecs(struct hci_dev *hdev);
+void hci_codec_list_clear(struct list_head *codec_list);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index f3a18d16b81f..a80d813ef743 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -45,6 +45,7 @@ 
 #include "leds.h"
 #include "msft.h"
 #include "aosp.h"
+#include "hci_codec.h"
 
 static void hci_rx_work(struct work_struct *work);
 static void hci_cmd_work(struct work_struct *work);
@@ -838,10 +839,6 @@  static int hci_init4_req(struct hci_request *req, unsigned long opt)
 	if (hdev->commands[22] & 0x04)
 		hci_set_event_mask_page_2(req);
 
-	/* Read local codec list if the HCI command is supported */
-	if (hdev->commands[29] & 0x20)
-		hci_req_add(req, HCI_OP_READ_LOCAL_CODECS, 0, NULL);
-
 	/* Read local pairing options if the HCI command is supported */
 	if (hdev->commands[41] & 0x08)
 		hci_req_add(req, HCI_OP_READ_LOCAL_PAIRING_OPTS, 0, NULL);
@@ -937,6 +934,10 @@  static int __hci_init(struct hci_dev *hdev)
 	if (err < 0)
 		return err;
 
+	/* Read local codec list if the HCI command is supported */
+	if (hdev->commands[29] & 0x20)
+		hci_read_supported_codecs(hdev);
+
 	/* This function is only called when the controller is actually in
 	 * configured state. When the controller is marked as unconfigured,
 	 * this initialization procedure is not run.
@@ -1848,6 +1849,7 @@  int hci_dev_do_close(struct hci_dev *hdev)
 	memset(hdev->eir, 0, sizeof(hdev->eir));
 	memset(hdev->dev_class, 0, sizeof(hdev->dev_class));
 	bacpy(&hdev->random_addr, BDADDR_ANY);
+	hci_codec_list_clear(&hdev->local_codecs);
 
 	hci_req_sync_unlock(hdev);
 
@@ -3848,6 +3850,7 @@  struct hci_dev *hci_alloc_dev_priv(int sizeof_priv)
 	INIT_LIST_HEAD(&hdev->adv_instances);
 	INIT_LIST_HEAD(&hdev->blocked_keys);
 
+	INIT_LIST_HEAD(&hdev->local_codecs);
 	INIT_WORK(&hdev->rx_work, hci_rx_work);
 	INIT_WORK(&hdev->cmd_work, hci_cmd_work);
 	INIT_WORK(&hdev->tx_work, hci_tx_work);