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Bluetooth: btusb: Add support different nvm to distinguish different …
…factory for WCN6855 controller

we have different factory to produce wcn6855 soc chip, so we should
use different nvm file with suffix to distinguish them.

Signed-off-by: Tim Jiang <tjiang@codeaurora.org>
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tjiang123 authored and intel-lab-lkp committed Aug 12, 2021
1 parent 55981d3 commit c9758b351006b29772f27d1e5e7fe904270f1356
Showing 1 changed file with 51 additions and 9 deletions.
@@ -3148,6 +3148,9 @@ 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;
@@ -3179,6 +3182,7 @@ 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,
@@ -3333,6 +3337,39 @@ static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
return err;
}

static int btusb_setup_qca_form_nvm_name(char **fwname,
int max_size,
struct qca_version *ver,
char *factory)
{
/* if boardid equal 0, use default nvm without suffix */
switch (le16_to_cpu(ver->board_id)) {
case 0x0:
/* we add suffix factory to distinguish with different factory. */
if (factory != NULL) {
snprintf(*fwname, max_size, "qca/nvm_usb_%08x_%s.bin",
le32_to_cpu(ver->rom_version),
factory);
} else {
snprintf(*fwname, max_size, "qca/nvm_usb_%08x.bin",
le32_to_cpu(ver->rom_version));
}
break;
default:
if (factory != NULL) {
snprintf(*fwname, max_size, "qca/nvm_usb_%08x_%s_%04x.bin",
le32_to_cpu(ver->rom_version),
factory,
le16_to_cpu(ver->board_id));
} else {
snprintf(*fwname, max_size, "qca/nvm_usb_%08x_%04x.bin",
le32_to_cpu(ver->rom_version),
le16_to_cpu(ver->board_id));
}
break;
}
}

static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
struct qca_version *ver,
const struct qca_device_info *info)
@@ -3341,19 +3378,24 @@ 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) {
switch (ver->ram_version) {
case WCN6855_2_0_RAM_VERSION_GF:
case WCN6855_2_1_RAM_VERSION_GF:
if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
btusb_setup_qca_form_nvm_name(&fwname, sizeof(fwname), ver, "gf");
} else {
snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
le32_to_cpu(ver->rom_version));
}
break;
default:
if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
btusb_setup_qca_form_nvm_name(&fwname, sizeof(fwname), ver, NULL);
} else {
snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x_%04x.bin",
le32_to_cpu(ver->rom_version),
le16_to_cpu(ver->board_id));
snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
le32_to_cpu(ver->rom_version));
}
} else {
snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
le32_to_cpu(ver->rom_version));
break;
}

err = request_firmware(&fw, fwname, &hdev->dev);

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