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authorTedd Ho-Jeong An <tedd.an@linux.intel.com>2018-01-24 20:19:20 +0300
committerMarcel Holtmann <marcel@holtmann.org>2018-01-24 21:31:49 +0300
commitfaf174d297134ad071f528a9db787b4c95734b40 (patch)
tree0da46953b6feb8ece4068d500f2699d7fc2a5c1b /drivers/bluetooth/btintel.c
parent04d729b8a56304698c2eec6b93f2319b38851f6e (diff)
downloadlinux-faf174d297134ad071f528a9db787b4c95734b40.tar.xz
Bluetooth: btintel: Create common Intel Read Boot Params function
The Intel_Read_Boot_Params command is used to read boot parameters from the bootloader and this is Intel generic command used in USB and UART drivers. Signed-off-by: Tedd Ho-Jeong An <tedd.an@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth/btintel.c')
-rw-r--r--drivers/bluetooth/btintel.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index c8aaed16f858..da47f6dccd38 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -589,6 +589,57 @@ int btintel_send_intel_reset(struct hci_dev *hdev, u32 boot_param)
}
EXPORT_SYMBOL_GPL(btintel_send_intel_reset);
+int btintel_read_boot_params(struct hci_dev *hdev,
+ struct intel_boot_params *params)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "Reading Intel boot parameters failed (%ld)",
+ PTR_ERR(skb));
+ return PTR_ERR(skb);
+ }
+
+ if (skb->len != sizeof(*params)) {
+ bt_dev_err(hdev, "Intel boot parameters size mismatch");
+ kfree_skb(skb);
+ return -EILSEQ;
+ }
+
+ memcpy(params, skb->data, sizeof(*params));
+
+ kfree_skb(skb);
+
+ if (params->status) {
+ bt_dev_err(hdev, "Intel boot parameters command failed (%02x)",
+ params->status);
+ return -bt_to_errno(params->status);
+ }
+
+ bt_dev_info(hdev, "Device revision is %u",
+ le16_to_cpu(params->dev_revid));
+
+ bt_dev_info(hdev, "Secure boot is %s",
+ params->secure_boot ? "enabled" : "disabled");
+
+ bt_dev_info(hdev, "OTP lock is %s",
+ params->otp_lock ? "enabled" : "disabled");
+
+ bt_dev_info(hdev, "API lock is %s",
+ params->api_lock ? "enabled" : "disabled");
+
+ bt_dev_info(hdev, "Debug lock is %s",
+ params->debug_lock ? "enabled" : "disabled");
+
+ bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
+ params->min_fw_build_nn, params->min_fw_build_cw,
+ 2000 + params->min_fw_build_yy);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btintel_read_boot_params);
+
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION);
MODULE_VERSION(VERSION);