Add BCM vendor specific command to configure PCM parameters. The new
vendor opcode allows us to set the sco routing, the pcm interface rate,
and a few other pcm specific options (frame sync, sync mode, and clock
mode). See broadcom-bluetooth.txt in Documentation for more information
about valid values for those settings.
Here is an example trace where this opcode was used to configure
a BCM4354:
< HCI Command: Vendor (0x3f|0x001c) plen 5
01 02 00 01 01
> HCI Event: Command Complete (0x0e) plen 4
Vendor (0x3f|0x001c) ncmd 1
Status: Success (0x00)
Signed-off-by: Abhishek Pandit-Subedi <[email protected]>
---
Changes in v4: None
Changes in v3: None
Changes in v2: None
drivers/bluetooth/btbcm.c | 18 ++++++++++++++++++
drivers/bluetooth/btbcm.h | 8 ++++++++
2 files changed, 26 insertions(+)
diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index 2d2e6d862068..d22a2025f7e1 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -105,6 +105,24 @@ int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
}
EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
+int btbcm_set_pcm_int_params(struct hci_dev *hdev,
+ const struct bcm_set_pcm_int_params *int_params)
+{
+ struct sk_buff *skb;
+ int err;
+
+ skb = __hci_cmd_sync(hdev, 0xfc1c, 5, int_params, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "BCM: Set PCM int params failed (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_set_pcm_int_params);
+
int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
{
const struct hci_command_hdr *cmd;
diff --git a/drivers/bluetooth/btbcm.h b/drivers/bluetooth/btbcm.h
index d204be8a84bf..bf9d86924787 100644
--- a/drivers/bluetooth/btbcm.h
+++ b/drivers/bluetooth/btbcm.h
@@ -54,6 +54,8 @@ struct bcm_set_pcm_format_params {
int btbcm_check_bdaddr(struct hci_dev *hdev);
int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw);
+int btbcm_set_pcm_int_params(struct hci_dev *hdev,
+ const struct bcm_set_pcm_int_params *int_params);
int btbcm_setup_patchram(struct hci_dev *hdev);
int btbcm_setup_apple(struct hci_dev *hdev);
@@ -74,6 +76,12 @@ static inline int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
return -EOPNOTSUPP;
}
+int btbcm_set_pcm_int_params(struct hci_dev *hdev,
+ const struct bcm_set_pcm_int_params *int_params)
+{
+ return -EOPNOTSUPP;
+}
+
static inline int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
{
return -EOPNOTSUPP;
--
2.24.0.rc1.363.gb1bccd3e3d-goog