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Bluetooth: btintel: Create common Intel Version Read function

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The Intel Version Read command is used to retrieve information
about hardware and firmware version/revision of Intel Bluetooth
controllers. This is an Intel generic command used in USB and
UART drivers.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Loic Poulain 2015-12-06 16:18:34 +01:00 committed by Marcel Holtmann
parent 1a11ec89db
commit 6c483de1b3
4 changed files with 66 additions and 92 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/bluetooth/btintel.c
View File

@ -349,6 +349,31 @@ int btintel_set_event_mask_mfg(struct hci_dev *hdev, bool debug)
}
EXPORT_SYMBOL_GPL(btintel_set_event_mask_mfg);
int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver)
{
struct sk_buff *skb;
skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_CMD_TIMEOUT);
if (IS_ERR(skb)) {
bt_dev_err(hdev, "Reading Intel version information failed (%ld)",
PTR_ERR(skb));
return PTR_ERR(skb);
}
if (skb->len != sizeof(*ver)) {
bt_dev_err(hdev, "Intel version event size mismatch");
kfree_skb(skb);
return -EILSEQ;
}
memcpy(ver, skb->data, sizeof(*ver));
kfree_skb(skb);
return 0;
}
EXPORT_SYMBOL_GPL(btintel_read_version);
/* ------- REGMAP IBT SUPPORT ------- */
#define IBT_REG_MODE_8BIT 0x00

7
drivers/bluetooth/btintel.h
View File

@ -85,6 +85,7 @@ int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type, u32 plen,
int btintel_load_ddc_config(struct hci_dev *hdev, const char *ddc_name);
int btintel_set_event_mask(struct hci_dev *hdev, bool debug);
int btintel_set_event_mask_mfg(struct hci_dev *hdev, bool debug);
int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver);
struct regmap *btintel_regmap_init(struct hci_dev *hdev, u16 opcode_read,
u16 opcode_write);
@ -152,6 +153,12 @@ static inline int btintel_set_event_mask_mfg(struct hci_dev *hdev, bool debug)
return -EOPNOTSUPP;
}
static inline int btintel_read_version(struct hci_dev *hdev,
struct intel_version *ver)
{
return -EOPNOTSUPP;
}
static inline struct regmap *btintel_regmap_init(struct hci_dev *hdev,
u16 opcode_read,
u16 opcode_write)

80
drivers/bluetooth/btusb.c
View File

@ -1647,7 +1647,7 @@ static int btusb_setup_intel(struct hci_dev *hdev)
const struct firmware *fw;
const u8 *fw_ptr;
int disable_patch, err;
struct intel_version *ver;
struct intel_version ver;
BT_DBG("%s", hdev->name);
@ -1673,35 +1673,22 @@ static int btusb_setup_intel(struct hci_dev *hdev)
* The returned information are hardware variant and revision plus
* firmware variant, revision and build number.
*/
skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
BT_ERR("%s reading Intel fw version command failed (%ld)",
hdev->name, PTR_ERR(skb));
return PTR_ERR(skb);
}
if (skb->len != sizeof(*ver)) {
BT_ERR("%s Intel version event length mismatch", hdev->name);
kfree_skb(skb);
return -EIO;
}
ver = (struct intel_version *)skb->data;
err = btintel_read_version(hdev, &ver);
if (err)
return err;
BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
hdev->name, ver->hw_platform, ver->hw_variant,
ver->hw_revision, ver->fw_variant, ver->fw_revision,
ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
ver->fw_patch_num);
hdev->name, ver.hw_platform, ver.hw_variant, ver.hw_revision,
ver.fw_variant, ver.fw_revision, ver.fw_build_num,
ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
/* fw_patch_num indicates the version of patch the device currently
* have. If there is no patch data in the device, it is always 0x00.
* So, if it is other than 0x00, no need to patch the device again.
*/
if (ver->fw_patch_num) {
if (ver.fw_patch_num) {
BT_INFO("%s: Intel device is already patched. patch num: %02x",
hdev->name, ver->fw_patch_num);
kfree_skb(skb);
hdev->name, ver.fw_patch_num);
goto complete;
}
@ -1711,15 +1698,11 @@ static int btusb_setup_intel(struct hci_dev *hdev)
* If no patch file is found, allow the device to operate without
* a patch.
*/
fw = btusb_setup_intel_get_fw(hdev, ver);
if (!fw) {
kfree_skb(skb);
fw = btusb_setup_intel_get_fw(hdev, &ver);
if (!fw)
goto complete;
}
fw_ptr = fw->data;
kfree_skb(skb);
/* Enable the manufacturer mode of the controller.
* Only while this mode is enabled, the driver can download the
* firmware patch data and configuration parameters.
@ -1983,7 +1966,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
0x00, 0x08, 0x04, 0x00 };
struct btusb_data *data = hci_get_drvdata(hdev);
struct sk_buff *skb;
struct intel_version *ver;
struct intel_version ver;
struct intel_boot_params *params;
const struct firmware *fw;
const u8 *fw_ptr;
@ -2001,28 +1984,16 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
* is in bootloader mode or if it already has operational firmware
* loaded.
*/
skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
BT_ERR("%s: Reading Intel version information failed (%ld)",
hdev->name, PTR_ERR(skb));
return PTR_ERR(skb);
}
if (skb->len != sizeof(*ver)) {
BT_ERR("%s: Intel version event size mismatch", hdev->name);
kfree_skb(skb);
return -EILSEQ;
}
ver = (struct intel_version *)skb->data;
err = btintel_read_version(hdev, &ver);
if (err)
return err;
/* The hardware platform number has a fixed value of 0x37 and
* for now only accept this single value.
*/
if (ver->hw_platform != 0x37) {
if (ver.hw_platform != 0x37) {
BT_ERR("%s: Unsupported Intel hardware platform (%u)",
hdev->name, ver->hw_platform);
kfree_skb(skb);
hdev->name, ver.hw_platform);
return -EINVAL;
}
@ -2031,14 +2002,13 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
* put in place to ensure correct forward compatibility options
* when newer hardware variants come along.
*/
if (ver->hw_variant != 0x0b) {
if (ver.hw_variant != 0x0b) {
BT_ERR("%s: Unsupported Intel hardware variant (%u)",
hdev->name, ver->hw_variant);
kfree_skb(skb);
hdev->name, ver.hw_variant);
return -EINVAL;
}
btintel_version_info(hdev, ver);
btintel_version_info(hdev, &ver);
/* The firmware variant determines if the device is in bootloader
* mode or is running operational firmware. The value 0x06 identifies
@ -2053,8 +2023,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
* It is not possible to use the Secure Boot Parameters in this
* case since that command is only available in bootloader mode.
*/
if (ver->fw_variant == 0x23) {
kfree_skb(skb);
if (ver.fw_variant == 0x23) {
clear_bit(BTUSB_BOOTLOADER, &data->flags);
btintel_check_bdaddr(hdev);
return 0;
@ -2063,15 +2032,12 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
/* If the device is not in bootloader mode, then the only possible
* choice is to return an error and abort the device initialization.
*/
if (ver->fw_variant != 0x06) {
if (ver.fw_variant != 0x06) {
BT_ERR("%s: Unsupported Intel firmware variant (%u)",
hdev->name, ver->fw_variant);
kfree_skb(skb);
hdev->name, ver.fw_variant);
return -ENODEV;
}
kfree_skb(skb);
/* Read the secure boot parameters to identify the operating
* details of the bootloader.
*/

46
drivers/bluetooth/hci_intel.c
View File

@ -542,7 +542,7 @@ static int intel_setup(struct hci_uart *hu)
struct intel_device *idev = NULL;
struct hci_dev *hdev = hu->hdev;
struct sk_buff *skb;
struct intel_version *ver;
struct intel_version ver;
struct intel_boot_params *params;
struct list_head *p;
const struct firmware *fw;
@ -590,35 +590,16 @@ static int intel_setup(struct hci_uart *hu)
* is in bootloader mode or if it already has operational firmware
* loaded.
*/
skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_CMD_TIMEOUT);
if (IS_ERR(skb)) {
bt_dev_err(hdev, "Reading Intel version information failed (%ld)",
PTR_ERR(skb));
return PTR_ERR(skb);
}
if (skb->len != sizeof(*ver)) {
bt_dev_err(hdev, "Intel version event size mismatch");
kfree_skb(skb);
return -EILSEQ;
}
ver = (struct intel_version *)skb->data;
if (ver->status) {
bt_dev_err(hdev, "Intel version command failure (%02x)",
ver->status);
err = -bt_to_errno(ver->status);
kfree_skb(skb);
err = btintel_read_version(hdev, &ver);
if (err)
return err;
}
/* The hardware platform number has a fixed value of 0x37 and
* for now only accept this single value.
*/
if (ver->hw_platform != 0x37) {
if (ver.hw_platform != 0x37) {
bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
ver->hw_platform);
kfree_skb(skb);
ver.hw_platform);
return -EINVAL;
}
@ -627,14 +608,13 @@ static int intel_setup(struct hci_uart *hu)
* put in place to ensure correct forward compatibility options
* when newer hardware variants come along.
*/
if (ver->hw_variant != 0x0b) {
if (ver.hw_variant != 0x0b) {
bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
ver->hw_variant);
kfree_skb(skb);
ver.hw_variant);
return -EINVAL;
}
btintel_version_info(hdev, ver);
btintel_version_info(hdev, &ver);
/* The firmware variant determines if the device is in bootloader
* mode or is running operational firmware. The value 0x06 identifies
@ -649,8 +629,7 @@ static int intel_setup(struct hci_uart *hu)
* It is not possible to use the Secure Boot Parameters in this
* case since that command is only available in bootloader mode.
*/
if (ver->fw_variant == 0x23) {
kfree_skb(skb);
if (ver.fw_variant == 0x23) {
clear_bit(STATE_BOOTLOADER, &intel->flags);
btintel_check_bdaddr(hdev);
return 0;
@ -659,15 +638,12 @@ static int intel_setup(struct hci_uart *hu)
/* If the device is not in bootloader mode, then the only possible
* choice is to return an error and abort the device initialization.
*/
if (ver->fw_variant != 0x06) {
if (ver.fw_variant != 0x06) {
bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
ver->fw_variant);
kfree_skb(skb);
ver.fw_variant);
return -ENODEV;
}
kfree_skb(skb);
/* Read the secure boot parameters to identify the operating
* details of the bootloader.
*/