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From:   Tedd Ho-Jeong An <hj.tedd.an@gmail.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     Tedd Ho-Jeong An <tedd.an@intel.com>
Subject: [RFC PATCH v3 6/9] Bluetooth: btintel: Add combined set_diag functions
Date:   Sat, 24 Jul 2021 00:30:02 -0700
Message-Id: <20210724073005.714003-7-hj.tedd.an@gmail.com>
In-Reply-To: <20210724073005.714003-1-hj.tedd.an@gmail.com>
References: <20210724073005.714003-1-hj.tedd.an@gmail.com>
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From: Tedd Ho-Jeong An <tedd.an@intel.com>

This patch adds a combined set_diag functions.
It also changes the btintel_set_diag_mfg() to static since it is no
longer used by others.

Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com>
---
 drivers/bluetooth/btintel.c | 23 +++++++++++++++++++++--
 drivers/bluetooth/btintel.h |  5 +++--
 drivers/bluetooth/btusb.c   |  2 +-
 3 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index dd319306ebb0..7a58bd29fba8 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -164,7 +164,7 @@ int btintel_set_diag(struct hci_dev *hdev, bool enable)
 }
 EXPORT_SYMBOL_GPL(btintel_set_diag);
 
-int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable)
+static int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable)
 {
 	int err, ret;
 
@@ -180,7 +180,25 @@ int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(btintel_set_diag_mfg);
+
+int btintel_set_diag_combined(struct hci_dev *hdev, bool enable)
+{
+	struct btintel_data *intel = hci_get_priv(hdev);
+	int ret;
+
+	/* Legacy ROM device needs to be in the manufacturer mode to apply
+	 * diagnostic setting
+	 *
+	 * This flag is set after reading the Intel version.
+	 */
+	if (test_bit(INTEL_ROM_LEGACY, &intel->flags))
+		ret = btintel_set_diag_mfg(hdev, enable);
+	else
+		ret = btintel_set_diag(hdev, enable);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(btintel_set_diag_combined);
 
 void btintel_hw_error(struct hci_dev *hdev, u8 code)
 {
@@ -1723,6 +1741,7 @@ int btintel_setup_combined(struct hci_dev *hdev)
 		case 0x07:	/* WP */
 		case 0x08:	/* StP */
 			/* Legacy ROM product */
+			set_bit(INTEL_ROM_LEGACY, &intel->flags);
 			err = btintel_legacy_rom_setup(hdev, &ver);
 			break;
 		case 0x0b:      /* SfP */
diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h
index 29b678364a79..d41b14208192 100644
--- a/drivers/bluetooth/btintel.h
+++ b/drivers/bluetooth/btintel.h
@@ -144,6 +144,7 @@ struct intel_debug_features {
 #define INTEL_FIRMWARE_FAILED		3
 #define INTEL_BOOTING			4
 #define INTEL_BROKEN_READ_VERSION	5
+#define INTEL_ROM_LEGACY		6
 
 struct btintel_data {
 	unsigned long flags;
@@ -156,7 +157,7 @@ int btintel_enter_mfg(struct hci_dev *hdev);
 int btintel_exit_mfg(struct hci_dev *hdev, bool reset, bool patched);
 int btintel_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 int btintel_set_diag(struct hci_dev *hdev, bool enable);
-int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable);
+int btintel_set_diag_combined(struct hci_dev *hdev, bool enable);
 void btintel_hw_error(struct hci_dev *hdev, u8 code);
 
 int btintel_version_info(struct hci_dev *hdev, struct intel_version *ver);
@@ -216,7 +217,7 @@ static inline int btintel_set_diag(struct hci_dev *hdev, bool enable)
 	return -EOPNOTSUPP;
 }
 
-static inline int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable)
+static inline int btintel_set_diag_combined(struct hci_dev *hdev, bool enable)
 {
 	return -EOPNOTSUPP;
 }
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 53bfe831b7bc..2d93c3612043 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -4303,7 +4303,7 @@ static int btusb_probe(struct usb_interface *intf,
 		hdev->manufacturer = 2;
 		hdev->setup = btintel_setup_combined;
 		hdev->shutdown = btintel_shutdown_combined;
-		hdev->set_diag = btintel_set_diag_mfg;
+		hdev->set_diag = btintel_set_diag_combined;
 		hdev->set_bdaddr = btintel_set_bdaddr;
 		hdev->cmd_timeout = btusb_intel_cmd_timeout;
 		set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
-- 
2.26.3