Different connectivity boards may be attached to the same platform. For
example, QCA6698-based boards can support either a two-antenna or
three-antenna solution, both of which work on the sa8775p-ride platform.
Due to differences in connectivity boards and variations in RF
performance from different foundries, different NVM configurations are
used based on the board ID.
Therefore, in the firmware-name property, if the NVM file has an
extension, the NVM file will be used. Otherwise, the system will first
try the .bNN (board ID) file, and if that fails, it will fall back to
the .bin file.
Possible configurations:
firmware-name = "QCA6698/hpnv21";
firmware-name = "QCA6698/hpnv21.bin";
Signed-off-by: Cheng Jiang <quic_chejiang@xxxxxxxxxxx>
---
drivers/bluetooth/btqca.c | 67 +++++++++++++++++++++++++++++++++++++--
1 file changed, 65 insertions(+), 2 deletions(-)
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index dfbbac922..deb2b1753 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -272,6 +272,27 @@ int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
}
EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
+static bool qca_get_alt_nvm_path(char *path, size_t max_size)
+{
+ char fwname[64];
+ const char *suffix;
+
+ suffix = strrchr(path, '.');
+
+ /* nvm file name has a suffix, replace with .bin */
+ if (suffix && suffix != path && *(suffix + 1) != '\0' && strchr(suffix, '/') == NULL) {
+ strscpy(fwname, path, suffix - path + 1);
+ snprintf(fwname + (suffix - path), sizeof(fwname) - (suffix - path), ".bin");
+ /* If nvm file is already the default one, return false to skip the retry. */
+ if (strcmp(fwname, path) == 0)
+ return false;
+
+ snprintf(path, max_size, "%s", fwname);
+ return true;
+ }
+ return false;
+}
+
static int qca_tlv_check_data(struct hci_dev *hdev,
struct qca_fw_config *config,
u8 *fw_data, size_t fw_size,
@@ -564,6 +585,19 @@ static int qca_download_firmware(struct hci_dev *hdev,
config->fwname, ret);
return ret;
}
+ }
+ /* For nvm, if desired nvm file is not present and it's not the
+ * default nvm file(ends with .bin), try to load the default nvm.
+ */
+ else if (config->type == TLV_TYPE_NVM &&
+ qca_get_alt_nvm_path(config->fwname, sizeof(config->fwname))) {
+ bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
+ ret = request_firmware(&fw, config->fwname, &hdev->dev);
+ if (ret) {
+ bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
+ config->fwname, ret);
+ return ret;
+ }
} else {
bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
config->fwname, ret);
@@ -730,6 +764,26 @@ static inline void qca_get_nvm_name_generic(struct qca_fw_config *cfg,
"qca/%snv%02x.b%02x", stem, rom_ver, bid);
}
+static void qca_get_nvm_name_by_board(char *fwname, size_t max_size,
+ const char *firmware_name, struct qca_btsoc_version ver,
+ enum qca_btsoc_type soc_type, u16 bid)
+{
+ const char *variant;
+
+ /* Set the variant to empty by default */
+ variant = "";
+ /* hsp gf chip */
+ if (soc_type == QCA_WCN6855) {
+ if ((le32_to_cpu(ver.soc_id) & QCA_HSP_GF_SOC_MASK) == QCA_HSP_GF_SOC_ID)
+ variant = "g";
+ }
+
+ if (bid == 0x0 || bid == 0xffff)
+ snprintf(fwname, max_size, "qca/%s%s.bin", firmware_name, variant);
+ else
+ snprintf(fwname, max_size, "qca/%s%s.b%02x", firmware_name, variant, bid);
+}
+
int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
const char *firmware_name)
@@ -739,6 +793,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
u8 rom_ver = 0;
u32 soc_ver;
u16 boardid = 0;
+ const char *suffix;
bt_dev_dbg(hdev, "QCA setup on UART");
@@ -816,8 +871,16 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
/* Download NVM configuration */
config.type = TLV_TYPE_NVM;
if (firmware_name) {
- snprintf(config.fwname, sizeof(config.fwname),
- "qca/%s", firmware_name);
+ /* The firmware name has suffix, use it directly */
+ suffix = strrchr(firmware_name, '.');
+ if (suffix && suffix != firmware_name &&
+ *(suffix + 1) != '\0' && strchr(suffix, '/') == NULL) {
+ snprintf(config.fwname, sizeof(config.fwname), "qca/%s", firmware_name);
+ } else {
+ qca_read_fw_board_id(hdev, &boardid);
+ qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),
+ firmware_name, ver, soc_type, boardid);
+ }
} else {
switch (soc_type) {
case QCA_WCN3990:
--
2.25.1
