diff --git a/drivers/net/wireless/cnss2/main.c b/drivers/net/wireless/cnss2/main.c index caa4058be40d..43178fa01c48 100644 --- a/drivers/net/wireless/cnss2/main.c +++ b/drivers/net/wireless/cnss2/main.c @@ -2095,6 +2095,13 @@ static const struct of_device_id cnss_of_match_table[] = { }; MODULE_DEVICE_TABLE(of, cnss_of_match_table); +static inline bool +cnss_use_nv_mac(struct cnss_plat_data *plat_priv) +{ + return of_property_read_bool(plat_priv->plat_dev->dev.of_node, + "use-nv-mac"); +} + static int cnss_probe(struct platform_device *plat_dev) { int ret = 0; @@ -2127,6 +2134,7 @@ static int cnss_probe(struct platform_device *plat_dev) plat_priv->plat_dev = plat_dev; plat_priv->device_id = device_id->driver_data; plat_priv->bus_type = cnss_get_bus_type(plat_priv->device_id); + plat_priv->use_nv_mac = cnss_use_nv_mac(plat_priv); cnss_set_plat_priv(plat_dev, plat_priv); platform_set_drvdata(plat_dev, plat_priv); INIT_LIST_HEAD(&plat_priv->vreg_list); diff --git a/drivers/net/wireless/cnss2/main.h b/drivers/net/wireless/cnss2/main.h index eee1bee56262..bb2b575f7f2f 100644 --- a/drivers/net/wireless/cnss2/main.h +++ b/drivers/net/wireless/cnss2/main.h @@ -372,6 +372,7 @@ struct cnss_plat_data { u64 dynamic_feature; void *get_info_cb_ctx; int (*get_info_cb)(void *ctx, void *event, int event_len); + u8 use_nv_mac; }; #ifdef CONFIG_ARCH_QCOM diff --git a/drivers/net/wireless/cnss2/qmi.c b/drivers/net/wireless/cnss2/qmi.c index 74c07f076a9e..22f059c3c166 100644 --- a/drivers/net/wireless/cnss2/qmi.c +++ b/drivers/net/wireless/cnss2/qmi.c @@ -28,6 +28,9 @@ #define QMI_WLFW_MAX_RECV_BUF_SIZE SZ_8K +#define QMI_WLFW_MAC_READY_TIMEOUT_MS 50 +#define QMI_WLFW_MAC_READY_MAX_RETRY 200 + static char *cnss_qmi_mode_to_str(enum cnss_driver_mode mode) { switch (mode) { @@ -692,6 +695,131 @@ out: return ret; } +static int cnss_wlfw_wlan_mac_req_send_sync(struct cnss_plat_data *plat_priv, + u8 *mac, u32 mac_len) +{ + struct wlfw_mac_addr_req_msg_v01 *req; + struct wlfw_mac_addr_resp_msg_v01 *resp; + struct qmi_txn txn; + int ret; + u8 is_query; + + if (!plat_priv) + return -ENODEV; + + /* NULL mac && zero mac_len means querying the status of MAC in FW */ + if ((mac && mac_len != QMI_WLFW_MAC_ADDR_SIZE_V01) || + (!mac && mac_len != 0)) + return -EINVAL; + + req = kzalloc(sizeof(*req), GFP_KERNEL); + if (!req) + return -ENOMEM; + + resp = kzalloc(sizeof(*resp), GFP_KERNEL); + if (!resp) { + kfree(req); + return -ENOMEM; + } + + ret = qmi_txn_init(&plat_priv->qmi_wlfw, &txn, + wlfw_mac_addr_resp_msg_v01_ei, resp); + if (ret < 0) { + cnss_pr_err("Failed to initialize txn for mac req, err: %d\n", + ret); + ret = -EIO; + goto out; + } + + is_query = !mac; + if (!is_query) { + /* DO NOT print this for mac query, that might be too many */ + cnss_pr_dbg("Sending WLAN mac req [%pM], state: 0x%lx\n", + mac, plat_priv->driver_state); + memcpy(req->mac_addr, mac, mac_len); + + /* 0 - query status of wlfw MAC; 1 - set wlfw MAC */ + req->mac_addr_valid = 1; + } + + ret = qmi_send_request(&plat_priv->qmi_wlfw, NULL, &txn, + QMI_WLFW_MAC_ADDR_REQ_V01, + WLFW_MAC_ADDR_REQ_MSG_V01_MAX_MSG_LEN, + wlfw_mac_addr_req_msg_v01_ei, req); + if (ret < 0) { + qmi_txn_cancel(&txn); + cnss_pr_err("Failed to send mac req, err: %d\n", ret); + + ret = -EIO; + goto out; + } + + ret = qmi_txn_wait(&txn, QMI_WLFW_TIMEOUT_JF); + if (ret < 0) { + cnss_pr_err("Failed to wait for resp of mac req, err: %d\n", + ret); + + ret = -EIO; + goto out; + } + + if (resp->resp.result != QMI_RESULT_SUCCESS_V01) { + cnss_pr_err("WLAN mac req failed, result: %d, err: %d\n", + resp->resp.result); + + ret = -EIO; + goto out; + } + + if (resp->resp.error != QMI_ERR_NONE_V01) { + ret = ((resp->resp.error == QMI_ERR_NETWORK_NOT_READY_V01 && + is_query) ? -EAGAIN : -EIO); + if (ret != -EAGAIN) + cnss_pr_err("Got error resp for mac req, err: %d\n", + resp->resp.error); + goto out; + } + + cnss_pr_dbg("WLAN mac req completed\n"); + +out: + kfree(req); + kfree(resp); + return ret; +} + +static void cnss_wait_for_wlfw_mac_ready(struct cnss_plat_data *plat_priv) +{ + int ret, retry = 0; + + if (!plat_priv) + return; + + cnss_pr_dbg("Checking wlfw mac, state: 0x%lx\n", + plat_priv->driver_state); + do { + /* query the current status of WLAN MAC */ + ret = cnss_wlfw_wlan_mac_req_send_sync(plat_priv, NULL, 0); + if (!ret) { + cnss_pr_dbg("wlfw mac is ready\n"); + break; + } + + if (ret != -EAGAIN) { + cnss_pr_err("failed to query wlfw mac, error: %d\n", + ret); + break; + } + + if (++retry >= QMI_WLFW_MAC_READY_MAX_RETRY) { + cnss_pr_err("Timeout to wait for wlfw mac ready\n"); + break; + } + + msleep(QMI_WLFW_MAC_READY_TIMEOUT_MS); + } while (true); +} + int cnss_wlfw_wlan_mode_send_sync(struct cnss_plat_data *plat_priv, enum cnss_driver_mode mode) { @@ -703,6 +831,9 @@ int cnss_wlfw_wlan_mode_send_sync(struct cnss_plat_data *plat_priv, if (!plat_priv) return -ENODEV; + if (mode == CNSS_MISSION && plat_priv->use_nv_mac) + cnss_wait_for_wlfw_mac_ready(plat_priv); + cnss_pr_dbg("Sending mode message, mode: %s(%d), state: 0x%lx\n", cnss_qmi_mode_to_str(mode), mode, plat_priv->driver_state); diff --git a/include/linux/soc/qcom/qmi.h b/include/linux/soc/qcom/qmi.h index 6e8694e78dff..8a567c3d8549 100644 --- a/include/linux/soc/qcom/qmi.h +++ b/include/linux/soc/qcom/qmi.h @@ -87,6 +87,7 @@ struct qmi_elem_info { #define QMI_ERR_INTERNAL_V01 3 #define QMI_ERR_CLIENT_IDS_EXHAUSTED_V01 5 #define QMI_ERR_INVALID_ID_V01 41 +#define QMI_ERR_NETWORK_NOT_READY_V01 53 #define QMI_ERR_ENCODING_V01 58 #define QMI_ERR_DISABLED_V01 69 #define QMI_ERR_INCOMPATIBLE_STATE_V01 90