From: tjiang@codeaurora.org
To: marcel@holtmann.org, johan.hedberg@gmail.com, luiz.dentz@gmail.com
Cc: linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org,
linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org,
c-hbandi@codeaurora.org, hemantg@codeaurora.org,
mka@chromium.org, rjliao@codeaurora.org, zijuhu@codeaurora.org,
tjiang@codeaurora.org
Subject: [PATCH v1] Bluetooth: btusb: Add support for variant WCN6855 by using different nvm
Date: Mon, 11 Oct 2021 18:48:52 +0800 [thread overview]
Message-ID: <7bdbdd186289635cd481562642f35cb8@codeaurora.org> (raw)
the RF performance of wcn6855 soc chip from different foundries will be
difference, so we should use different nvm to configure them.
Signed-off-by: Tim Jiang <tjiang@codeaurora.org>
---
drivers/bluetooth/btusb.c | 54
+++++++++++++++++++++++++++++++++++------------
1 file changed, 40 insertions(+), 14 deletions(-)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 75c83768c257..ed1ccf061a54 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3190,6 +3190,9 @@ static int btusb_set_bdaddr_wcn6855(struct hci_dev
*hdev,
#define QCA_DFU_TIMEOUT 3000
#define QCA_FLAG_MULTI_NVM 0x80
+#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
+#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
+
struct qca_version {
__le32 rom_version;
__le32 patch_version;
@@ -3221,6 +3224,7 @@ static const struct qca_device_info
qca_devices_table[] = {
{ 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
{ 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
{ 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
+ { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
};
static int btusb_qca_send_vendor_req(struct usb_device *udev, u8
request,
@@ -3375,6 +3379,41 @@ static int btusb_setup_qca_load_rampatch(struct
hci_dev *hdev,
return err;
}
+static void btusb_generate_qca_nvm_name(char *fwname,
+ size_t max_size,
+ struct qca_version *ver)
+{
+ u32 rom_version = le32_to_cpu(ver->rom_version);
+
+ if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
+ u16 board_id = le16_to_cpu(ver->board_id);
+ const char *variant;
+
+ switch (ver->ram_version) {
+ case WCN6855_2_0_RAM_VERSION_GF:
+ case WCN6855_2_1_RAM_VERSION_GF:
+ variant = "_gf";
+ break;
+ default:
+ variant = "";
+ break;
+ }
+
+ /* if boardid equal 0, use default nvm without suffix */
+ if (board_id == 0x0) {
+ snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
+ rom_version, variant);
+ } else {
+ snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
+ rom_version, variant, board_id);
+ }
+ } else {
+ snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
+ rom_version);
+ }
+
+}
+
static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
struct qca_version *ver,
const struct qca_device_info *info)
@@ -3383,20 +3422,7 @@ static int btusb_setup_qca_load_nvm(struct
hci_dev *hdev,
char fwname[64];
int err;
- if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
- /* if boardid equal 0, use default nvm without surfix */
- if (le16_to_cpu(ver->board_id) == 0x0) {
- snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
- le32_to_cpu(ver->rom_version));
- } else {
- snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x_%04x.bin",
- le32_to_cpu(ver->rom_version),
- le16_to_cpu(ver->board_id));
- }
- } else {
- snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
- le32_to_cpu(ver->rom_version));
- }
+ btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
err = request_firmware(&fw, fwname, &hdev->dev);
if (err) {
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
Forum, a Linux Foundation Collaborative Project
next reply other threads:[~2021-10-11 10:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-11 10:48 tjiang [this message]
2021-10-12 6:30 ` [PATCH v1] Bluetooth: btusb: Add support for variant WCN6855 by using different nvm kernel test robot
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