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Message-Id: <20200914092744.17464-1-rjliao@codeaurora.org>
Date: Mon, 14 Sep 2020 17:27:44 +0800
From: Rocky Liao <rjliao@...eaurora.org>
To: marcel@...tmann.org, johan.hedberg@...il.com
Cc: linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
linux-arm-msm@...r.kernel.org, Rocky Liao <rjliao@...eaurora.org>
Subject: [PATCH v2] Bluetooth: btusb: Add Qualcomm Bluetooth SoC WCN6855 support
This patch add support for WCN6855 i.e. patch and nvm download
support.
Signed-off-by: Rocky Liao <rjliao@...eaurora.org>
---
drivers/bluetooth/btusb.c | 50 ++++++++++++++++++++++++++++++++++-----
1 file changed, 44 insertions(+), 6 deletions(-)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index fe80588c7bd3..789e8d5e829e 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -59,6 +59,7 @@ static struct usb_driver btusb_driver;
#define BTUSB_MEDIATEK 0x200000
#define BTUSB_WIDEBAND_SPEECH 0x400000
#define BTUSB_VALID_LE_STATES 0x800000
+#define BTUSB_QCA_WCN6855 0x1000000
static const struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
@@ -273,6 +274,10 @@ static const struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
+ /* QCA WCN6855 chipset */
+ { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH },
+
/* Broadcom BCM2035 */
{ USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
{ USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
@@ -3391,6 +3396,26 @@ static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
return 0;
}
+static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
+ const bdaddr_t *bdaddr)
+{
+ struct sk_buff *skb;
+ u8 buf[6];
+ long ret;
+
+ memcpy(buf, bdaddr, sizeof(bdaddr_t));
+
+ skb = __hci_cmd_sync(hdev, 0xfc14, sizeof(buf), buf, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ bt_dev_err(hdev, "Change address command failed (%ld)", ret);
+ return ret;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+
#define QCA_DFU_PACKET_LEN 4096
#define QCA_GET_TARGET_VERSION 0x09
@@ -3428,6 +3453,8 @@ static const struct qca_device_info qca_devices_table[] = {
{ 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
{ 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
{ 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
+ { 0x00130100, 40, 4, 18 }, /* WCN6855 1.0 */
+ { 0x00130200, 40, 4, 18 } /* WCN6855 2.0 */
};
static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
@@ -3529,8 +3556,8 @@ static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
{
struct qca_rampatch_version *rver;
const struct firmware *fw;
- u32 ver_rom, ver_patch;
- u16 rver_rom, rver_patch;
+ u32 ver_rom, ver_patch, rver_rom;
+ u16 rver_rom_low, rver_rom_high, rver_patch;
char fwname[64];
int err;
@@ -3549,9 +3576,16 @@ static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
bt_dev_info(hdev, "using rampatch file: %s", fwname);
rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
- rver_rom = le16_to_cpu(rver->rom_version);
+ rver_rom_low = le16_to_cpu(rver->rom_version);
rver_patch = le16_to_cpu(rver->patch_version);
+ if (ver_rom & ~0xffffU) {
+ rver_rom_high = le16_to_cpu(*(__le16 *)(fw->data + 16));
+ rver_rom = le32_to_cpu(rver_rom_high << 16 | rver_rom_low);
+ } else {
+ rver_rom = (__force u32)rver_rom_low;
+ }
+
bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
"firmware rome 0x%x build 0x%x",
rver_rom, rver_patch, ver_rom, ver_patch);
@@ -3625,9 +3659,6 @@ static int btusb_setup_qca(struct hci_dev *hdev)
return err;
ver_rom = le32_to_cpu(ver.rom_version);
- /* Don't care about high ROM versions */
- if (ver_rom & ~0xffffU)
- return 0;
for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
if (ver_rom == qca_devices_table[i].rom_version)
@@ -4063,6 +4094,13 @@ static int btusb_probe(struct usb_interface *intf,
btusb_check_needs_reset_resume(intf);
}
+ if (id->driver_info & BTUSB_QCA_WCN6855) {
+ data->setup_on_usb = btusb_setup_qca;
+ hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
+ hdev->cmd_timeout = btusb_qca_cmd_timeout;
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+ }
+
if (id->driver_info & BTUSB_AMP) {
/* AMP controllers do not support SCO packets */
data->isoc = NULL;
--
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