void ath6kl_core_cleanup(struct ath6kl *ar) { ath6kl_hif_power_off(ar); destroy_workqueue(ar->ath6kl_wq); if (ar->htc_target) ath6kl_htc_cleanup(ar->htc_target); ath6kl_cookie_cleanup(ar); ath6kl_cleanup_amsdu_rxbufs(ar); ath6kl_bmi_cleanup(ar); ath6kl_debug_cleanup(ar); kfree(ar->fw_board); kfree(ar->fw_otp); vfree(ar->fw); kfree(ar->fw_patch); kfree(ar->fw_testscript); ath6kl_cfg80211_cleanup(ar); }
/* * We need to differentiate between the surprise and planned removal of the * device because of the following consideration: * * - In case of surprise removal, the hcd already frees up the pending * for the device and hence there is no need to unregister the function * driver inorder to get these requests. For planned removal, the function * driver has to explicitly unregister itself to have the hcd return all the * pending requests before the data structures for the devices are freed up. * Note that as per the current implementation, the function driver will * end up releasing all the devices since there is no API to selectively * release a particular device. * * - Certain commands issued to the target can be skipped for surprise * removal since they will anyway not go through. */ void ath6kl_destroy(struct net_device *dev, unsigned int unregister) { struct ath6kl *ar; if (!dev || !ath6kl_priv(dev)) { ath6kl_err("failed to get device structure\n"); return; } ar = ath6kl_priv(dev); destroy_workqueue(ar->ath6kl_wq); if (ar->htc_target) htc_cleanup(ar->htc_target); aggr_module_destroy(ar->aggr_cntxt); ath6kl_cookie_cleanup(ar); ath6kl_cleanup_amsdu_rxbufs(ar); ath6kl_bmi_cleanup(ar); if (unregister && test_bit(NETDEV_REGISTERED, &ar->flag)) { unregister_netdev(dev); clear_bit(NETDEV_REGISTERED, &ar->flag); } free_netdev(dev); ath6kl_cfg80211_deinit(ar); }
static int ath6kl_init(struct net_device *dev) { struct ath6kl *ar = ath6kl_priv(dev); int status = 0; s32 timeleft; if (!ar) return -EIO; /* Do we need to finish the BMI phase */ if (ath6kl_bmi_done(ar)) { status = -EIO; goto ath6kl_init_done; } /* Indicate that WMI is enabled (although not ready yet) */ set_bit(WMI_ENABLED, &ar->flag); ar->wmi = ath6kl_wmi_init(ar); if (!ar->wmi) { ath6kl_err("failed to initialize wmi\n"); status = -EIO; goto ath6kl_init_done; } ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); wlan_node_table_init(&ar->scan_table); /* * The reason we have to wait for the target here is that the * driver layer has to init BMI in order to set the host block * size. */ if (ath6kl_htc_wait_target(ar->htc_target)) { status = -EIO; goto err_node_cleanup; } if (ath6kl_init_service_ep(ar)) { status = -EIO; goto err_cleanup_scatter; } /* setup access class priority mappings */ ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ ar->ac_stream_pri_map[WMM_AC_BE] = 1; ar->ac_stream_pri_map[WMM_AC_VI] = 2; ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ /* give our connected endpoints some buffers */ ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); /* allocate some buffers that handle larger AMSDU frames */ ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); /* setup credit distribution */ ath6k_setup_credit_dist(ar->htc_target, &ar->credit_state_info); ath6kl_cookie_init(ar); /* start HTC */ status = ath6kl_htc_start(ar->htc_target); if (status) { ath6kl_cookie_cleanup(ar); goto err_rxbuf_cleanup; } /* Wait for Wmi event to be ready */ timeleft = wait_event_interruptible_timeout(ar->event_wq, test_bit(WMI_READY, &ar->flag), WMI_TIMEOUT); if (ar->version.abi_ver != ATH6KL_ABI_VERSION) { ath6kl_err("abi version mismatch: host(0x%x), target(0x%x)\n", ATH6KL_ABI_VERSION, ar->version.abi_ver); status = -EIO; goto err_htc_stop; } if (!timeleft || signal_pending(current)) { ath6kl_err("wmi is not ready or wait was interrupted\n"); status = -EIO; goto err_htc_stop; } ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__); /* communicate the wmi protocol verision to the target */ if ((ath6kl_set_host_app_area(ar)) != 0) ath6kl_err("unable to set the host app area\n"); ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; status = ath6kl_target_config_wlan_params(ar); if (!status) goto ath6kl_init_done; err_htc_stop: ath6kl_htc_stop(ar->htc_target); err_rxbuf_cleanup: ath6kl_htc_flush_rx_buf(ar->htc_target); ath6kl_cleanup_amsdu_rxbufs(ar); err_cleanup_scatter: ath6kl_hif_cleanup_scatter(ar); err_node_cleanup: wlan_node_table_cleanup(&ar->scan_table); ath6kl_wmi_shutdown(ar->wmi); clear_bit(WMI_ENABLED, &ar->flag); ar->wmi = NULL; ath6kl_init_done: return status; }