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62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
125 lines
3.8 KiB
Diff
125 lines
3.8 KiB
Diff
From 6631d2076af26d2b5b6a3a2f17e8a33de48abcac Mon Sep 17 00:00:00 2001
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From: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
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Date: Tue, 26 Nov 2019 08:17:30 +0100
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Subject: [PATCH] Bluetooth: btbcm: Support pcm configuration
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commit 528379902337102b0264fe5343eafb3d6c59fa45 upstream.
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Add BCM vendor specific command to configure PCM parameters. The new
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vendor opcode allows us to set the sco routing, the pcm interface rate,
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and a few other pcm specific options (frame sync, sync mode, and clock
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mode). See broadcom-bluetooth.txt in Documentation for more information
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about valid values for those settings.
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Here is an example trace where this opcode was used to configure
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a BCM4354:
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< HCI Command: Vendor (0x3f|0x001c) plen 5
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01 02 00 01 01
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> HCI Event: Command Complete (0x0e) plen 4
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Vendor (0x3f|0x001c) ncmd 1
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Status: Success (0x00)
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We can read back the values as well with ocf 0x001d to confirm the
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values that were set:
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$ hcitool cmd 0x3f 0x001d
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< HCI Command: ogf 0x3f, ocf 0x001d, plen 0
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> HCI Event: 0x0e plen 9
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01 1D FC 00 01 02 00 01 01
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Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
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Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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---
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drivers/bluetooth/btbcm.c | 46 +++++++++++++++++++++++++++++++++++++++
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drivers/bluetooth/btbcm.h | 16 ++++++++++++++
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2 files changed, 62 insertions(+)
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--- a/drivers/bluetooth/btbcm.c
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+++ b/drivers/bluetooth/btbcm.c
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@@ -105,6 +105,52 @@ int btbcm_set_bdaddr(struct hci_dev *hde
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}
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EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
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+int btbcm_read_pcm_int_params(struct hci_dev *hdev,
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+ struct bcm_set_pcm_int_params *params)
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+{
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+ struct sk_buff *skb;
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+ int err = 0;
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+
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+ skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT);
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+ if (IS_ERR(skb)) {
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+ err = PTR_ERR(skb);
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+ bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err);
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+ return err;
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+ }
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+
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+ if (skb->len != 6 || skb->data[0]) {
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+ bt_dev_err(hdev, "BCM: Read PCM int params length mismatch");
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+ kfree_skb(skb);
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+ return -EIO;
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+ }
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+
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+ if (params)
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+ memcpy(params, skb->data + 1, 5);
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+
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+ kfree_skb(skb);
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+
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+ return 0;
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+}
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+EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);
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+
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+int btbcm_write_pcm_int_params(struct hci_dev *hdev,
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+ const struct bcm_set_pcm_int_params *params)
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+{
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+ struct sk_buff *skb;
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+ int err;
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+
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+ skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT);
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+ if (IS_ERR(skb)) {
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+ err = PTR_ERR(skb);
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+ bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err);
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+ return err;
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+ }
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+ kfree_skb(skb);
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+
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+ return 0;
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+}
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+EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);
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+
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int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
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{
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const struct hci_command_hdr *cmd;
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--- a/drivers/bluetooth/btbcm.h
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+++ b/drivers/bluetooth/btbcm.h
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@@ -54,6 +54,10 @@ struct bcm_set_pcm_format_params {
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int btbcm_check_bdaddr(struct hci_dev *hdev);
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int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
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int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw);
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+int btbcm_read_pcm_int_params(struct hci_dev *hdev,
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+ struct bcm_set_pcm_int_params *params);
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+int btbcm_write_pcm_int_params(struct hci_dev *hdev,
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+ const struct bcm_set_pcm_int_params *params);
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int btbcm_setup_patchram(struct hci_dev *hdev);
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int btbcm_setup_apple(struct hci_dev *hdev);
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@@ -73,6 +77,18 @@ static inline int btbcm_set_bdaddr(struc
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{
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return -EOPNOTSUPP;
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}
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+
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+int btbcm_read_pcm_int_params(struct hci_dev *hdev,
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+ struct bcm_set_pcm_int_params *params)
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+{
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+ return -EOPNOTSUPP;
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+}
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+
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+int btbcm_write_pcm_int_params(struct hci_dev *hdev,
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+ const struct bcm_set_pcm_int_params *params)
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+{
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+ return -EOPNOTSUPP;
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+}
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static inline int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
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{
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