ath11k: add caldata download support from EEPROM

Firmware updates EEPROM support capability in QMI FW caps, send QMI BDF
download request message with file type EEPROM, to get caldata download
from EEPROM. Firmware takes more time to update cal data from EEPROM, so
increase QMI timeout.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01838-QCAHKSWPL_SILICONZ-1

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721201927.100369-5-jouni@codeaurora.org

1 files changed, 114 insertions, 25 deletions

diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index d7ceb9ae59df..6e2d62a9623d 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.c
+++ b/drivers/net/wireless/ath/ath11k/qmi.c
@@ -951,6 +951,78 @@ static struct qmi_elem_info qmi_wlanfw_cap_resp_msg_v01_ei[] = {
 					   num_macs),
 	},
 	{
+		.data_type      = QMI_OPT_FLAG,
+		.elem_len       = 1,
+		.elem_size      = sizeof(u8),
+		.array_type     = NO_ARRAY,
+		.tlv_type       = 0x16,
+		.offset         = offsetof(struct qmi_wlanfw_cap_resp_msg_v01,
+					   voltage_mv_valid),
+	},
+	{
+		.data_type      = QMI_UNSIGNED_4_BYTE,
+		.elem_len       = 1,
+		.elem_size      = sizeof(u32),
+		.array_type     = NO_ARRAY,
+		.tlv_type       = 0x16,
+		.offset         = offsetof(struct qmi_wlanfw_cap_resp_msg_v01,
+					   voltage_mv),
+	},
+	{
+		.data_type      = QMI_OPT_FLAG,
+		.elem_len       = 1,
+		.elem_size      = sizeof(u8),
+		.array_type     = NO_ARRAY,
+		.tlv_type       = 0x17,
+		.offset         = offsetof(struct qmi_wlanfw_cap_resp_msg_v01,
+					   time_freq_hz_valid),
+	},
+	{
+		.data_type      = QMI_UNSIGNED_4_BYTE,
+		.elem_len       = 1,
+		.elem_size      = sizeof(u32),
+		.array_type     = NO_ARRAY,
+		.tlv_type       = 0x17,
+		.offset         = offsetof(struct qmi_wlanfw_cap_resp_msg_v01,
+					   time_freq_hz),
+	},
+	{
+		.data_type      = QMI_OPT_FLAG,
+		.elem_len       = 1,
+		.elem_size      = sizeof(u8),
+		.array_type     = NO_ARRAY,
+		.tlv_type       = 0x18,
+		.offset         = offsetof(struct qmi_wlanfw_cap_resp_msg_v01,
+					   otp_version_valid),
+	},
+	{
+		.data_type      = QMI_UNSIGNED_4_BYTE,
+		.elem_len       = 1,
+		.elem_size      = sizeof(u32),
+		.array_type     = NO_ARRAY,
+		.tlv_type       = 0x18,
+		.offset         = offsetof(struct qmi_wlanfw_cap_resp_msg_v01,
+					   otp_version),
+	},
+	{
+		.data_type      = QMI_OPT_FLAG,
+		.elem_len       = 1,
+		.elem_size      = sizeof(u8),
+		.array_type     = NO_ARRAY,
+		.tlv_type       = 0x19,
+		.offset         = offsetof(struct qmi_wlanfw_cap_resp_msg_v01,
+					   eeprom_read_timeout_valid),
+	},
+	{
+		.data_type      = QMI_UNSIGNED_4_BYTE,
+		.elem_len       = 1,
+		.elem_size      = sizeof(u32),
+		.array_type     = NO_ARRAY,
+		.tlv_type       = 0x19,
+		.offset         = offsetof(struct qmi_wlanfw_cap_resp_msg_v01,
+					   eeprom_read_timeout),
+	},
+	{
 		.data_type	= QMI_EOTI,
 		.array_type	= NO_ARRAY,
 		.tlv_type	= QMI_COMMON_TLV_TYPE,
@@ -1846,8 +1918,8 @@ static int ath11k_qmi_request_target_cap(struct ath11k_base *ab)
 	memset(&req, 0, sizeof(req));
 	memset(&resp, 0, sizeof(resp));
 
-	ret = qmi_txn_init(&ab->qmi.handle, &txn,
-			   qmi_wlanfw_cap_resp_msg_v01_ei, &resp);
+	ret = qmi_txn_init(&ab->qmi.handle, &txn, qmi_wlanfw_cap_resp_msg_v01_ei,
+			   &resp);
 	if (ret < 0)
 		goto out;
 
@@ -1900,6 +1972,12 @@ static int ath11k_qmi_request_target_cap(struct ath11k_base *ab)
 		strlcpy(ab->qmi.target.fw_build_id, resp.fw_build_id,
 			sizeof(ab->qmi.target.fw_build_id));
 
+	if (resp.eeprom_read_timeout_valid) {
+		ab->qmi.target.eeprom_caldata =
+					resp.eeprom_read_timeout;
+		ath11k_dbg(ab, ATH11K_DBG_QMI, "qmi cal data supported from eeprom\n");
+	}
+
 	ath11k_info(ab, "chip_id 0x%x chip_family 0x%x board_id 0x%x soc_id 0x%x\n",
 		    ab->qmi.target.chip_id, ab->qmi.target.chip_family,
 		    ab->qmi.target.board_id, ab->qmi.target.soc_id);
@@ -1963,7 +2041,8 @@ static int ath11k_qmi_load_file_target_mem(struct ath11k_base *ab,
 			req->end = 1;
 		}
 
-		if (ab->bus_params.fixed_bdf_addr) {
+		if (ab->bus_params.fixed_bdf_addr ||
+		    type == ATH11K_QMI_FILE_TYPE_EEPROM) {
 			req->data_valid = 0;
 			req->end = 1;
 			req->data_len = ATH11K_QMI_MAX_BDF_FILE_NAME_SIZE;
@@ -2010,7 +2089,8 @@ static int ath11k_qmi_load_file_target_mem(struct ath11k_base *ab,
 			goto err_iounmap;
 		}
 
-		if (ab->bus_params.fixed_bdf_addr) {
+		if (ab->bus_params.fixed_bdf_addr ||
+		    type == ATH11K_QMI_FILE_TYPE_EEPROM) {
 			remaining = 0;
 		} else {
 			remaining -= req->data_len;
@@ -2039,6 +2119,7 @@ static int ath11k_qmi_load_bdf_qmi(struct ath11k_base *ab)
 	struct ath11k_board_data bd;
 	u32 fw_size, file_type;
 	int ret = 0, bdf_type;
+	const u8 *tmp;
 
 	memset(&bd, 0, sizeof(bd));
 	ret = ath11k_core_fetch_bdf(ab, &bd);
@@ -2063,31 +2144,38 @@ static int ath11k_qmi_load_bdf_qmi(struct ath11k_base *ab)
 		goto out;
 	}
 
-	/* QCA6390 does not support cal data file, skip it */
+	/* QCA6390 does not support cal data, skip it */
 	if (bdf_type == ATH11K_QMI_BDF_TYPE_ELF)
 		goto out;
 
-	file_type = ATH11K_QMI_FILE_TYPE_CALDATA;
-
-	/* cal-<bus>-<id>.bin */
-	snprintf(filename, sizeof(filename), "cal-%s-%s.bin",
-		 ath11k_bus_str(ab->hif.bus), dev_name(dev));
-	fw_entry = ath11k_core_firmware_request(ab, filename);
-	if (!IS_ERR(fw_entry))
-		goto success;
-
-	fw_entry = ath11k_core_firmware_request(ab, ATH11K_DEFAULT_CAL_FILE);
-	if (IS_ERR(fw_entry)) {
-		ret = PTR_ERR(fw_entry);
-		ath11k_warn(ab,
-			    "qmi failed to load CAL data file:%s\n",
-			    filename);
-		goto out;
+	if (ab->qmi.target.eeprom_caldata) {
+		file_type = ATH11K_QMI_FILE_TYPE_EEPROM;
+		tmp = filename;
+		fw_size = ATH11K_QMI_MAX_BDF_FILE_NAME_SIZE;
+	} else {
+		file_type = ATH11K_QMI_FILE_TYPE_CALDATA;
+
+		/* cal-<bus>-<id>.bin */
+		snprintf(filename, sizeof(filename), "cal-%s-%s.bin",
+			 ath11k_bus_str(ab->hif.bus), dev_name(dev));
+		fw_entry = ath11k_core_firmware_request(ab, filename);
+		if (!IS_ERR(fw_entry))
+			goto success;
+
+		fw_entry = ath11k_core_firmware_request(ab, ATH11K_DEFAULT_CAL_FILE);
+		if (IS_ERR(fw_entry)) {
+			ret = PTR_ERR(fw_entry);
+			ath11k_warn(ab,
+				    "qmi failed to load CAL data file:%s\n",
+				    filename);
+			goto out;
+		}
+success:
+		fw_size = min_t(u32, ab->hw_params.fw.board_size, fw_entry->size);
+		tmp = fw_entry->data;
 	}
 
-success:
-	fw_size = min_t(u32, ab->hw_params.fw.board_size, fw_entry->size);
-	ret = ath11k_qmi_load_file_target_mem(ab, fw_entry->data, fw_size, file_type);
+	ret = ath11k_qmi_load_file_target_mem(ab, tmp, fw_size, file_type);
 	if (ret < 0) {
 		ath11k_warn(ab, "qmi failed to load caldata\n");
 		goto out_qmi_cal;
@@ -2096,7 +2184,8 @@ success:
 	ath11k_dbg(ab, ATH11K_DBG_QMI, "qmi caldata type: %u\n", file_type);
 
 out_qmi_cal:
-	release_firmware(fw_entry);
+	if (!ab->qmi.target.eeprom_caldata)
+		release_firmware(fw_entry);
 out:
 	ath11k_core_free_bdf(ab, &bd);
 	ath11k_dbg(ab, ATH11K_DBG_QMI, "qmi BDF download sequence completed\n");