diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/core.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/core.c | 277 |
1 files changed, 154 insertions, 123 deletions
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index 75b3dfbd6509..82017f56e661 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -58,36 +58,6 @@ static void ath10k_send_suspend_complete(struct ath10k *ar) complete(&ar->target_suspend); } -static int ath10k_init_connect_htc(struct ath10k *ar) -{ - int status; - - status = ath10k_wmi_connect_htc_service(ar); - if (status) - goto conn_fail; - - /* Start HTC */ - status = ath10k_htc_start(&ar->htc); - if (status) - goto conn_fail; - - /* Wait for WMI event to be ready */ - status = ath10k_wmi_wait_for_service_ready(ar); - if (status <= 0) { - ath10k_warn("wmi service ready event not received"); - status = -ETIMEDOUT; - goto timeout; - } - - ath10k_dbg(ATH10K_DBG_BOOT, "boot wmi ready\n"); - return 0; - -timeout: - ath10k_htc_stop(&ar->htc); -conn_fail: - return status; -} - static int ath10k_init_configure_target(struct ath10k *ar) { u32 param_host; @@ -681,7 +651,8 @@ static void ath10k_core_restart(struct work_struct *work) switch (ar->state) { case ATH10K_STATE_ON: ar->state = ATH10K_STATE_RESTARTING; - ath10k_halt(ar); + del_timer_sync(&ar->scan.timeout); + ath10k_reset_scan((unsigned long)ar); ieee80211_restart_hw(ar->hw); break; case ATH10K_STATE_OFF: @@ -690,6 +661,8 @@ static void ath10k_core_restart(struct work_struct *work) ath10k_warn("cannot restart a device that hasn't been started\n"); break; case ATH10K_STATE_RESTARTING: + /* hw restart might be requested from multiple places */ + break; case ATH10K_STATE_RESTARTED: ar->state = ATH10K_STATE_WEDGED; /* fall through */ @@ -701,70 +674,6 @@ static void ath10k_core_restart(struct work_struct *work) mutex_unlock(&ar->conf_mutex); } -struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev, - const struct ath10k_hif_ops *hif_ops) -{ - struct ath10k *ar; - - ar = ath10k_mac_create(); - if (!ar) - return NULL; - - ar->ath_common.priv = ar; - ar->ath_common.hw = ar->hw; - - ar->p2p = !!ath10k_p2p; - ar->dev = dev; - - ar->hif.priv = hif_priv; - ar->hif.ops = hif_ops; - - init_completion(&ar->scan.started); - init_completion(&ar->scan.completed); - init_completion(&ar->scan.on_channel); - init_completion(&ar->target_suspend); - - init_completion(&ar->install_key_done); - init_completion(&ar->vdev_setup_done); - - setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar); - - ar->workqueue = create_singlethread_workqueue("ath10k_wq"); - if (!ar->workqueue) - goto err_wq; - - mutex_init(&ar->conf_mutex); - spin_lock_init(&ar->data_lock); - - INIT_LIST_HEAD(&ar->peers); - init_waitqueue_head(&ar->peer_mapping_wq); - - init_completion(&ar->offchan_tx_completed); - INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work); - skb_queue_head_init(&ar->offchan_tx_queue); - - INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work); - skb_queue_head_init(&ar->wmi_mgmt_tx_queue); - - INIT_WORK(&ar->restart_work, ath10k_core_restart); - - return ar; - -err_wq: - ath10k_mac_destroy(ar); - return NULL; -} -EXPORT_SYMBOL(ath10k_core_create); - -void ath10k_core_destroy(struct ath10k *ar) -{ - flush_workqueue(ar->workqueue); - destroy_workqueue(ar->workqueue); - - ath10k_mac_destroy(ar); -} -EXPORT_SYMBOL(ath10k_core_destroy); - int ath10k_core_start(struct ath10k *ar) { int status; @@ -805,10 +714,28 @@ int ath10k_core_start(struct ath10k *ar) goto err; } + status = ath10k_htt_init(ar); + if (status) { + ath10k_err("failed to init htt: %d\n", status); + goto err_wmi_detach; + } + + status = ath10k_htt_tx_alloc(&ar->htt); + if (status) { + ath10k_err("failed to alloc htt tx: %d\n", status); + goto err_wmi_detach; + } + + status = ath10k_htt_rx_alloc(&ar->htt); + if (status) { + ath10k_err("failed to alloc htt rx: %d\n", status); + goto err_htt_tx_detach; + } + status = ath10k_hif_start(ar); if (status) { ath10k_err("could not start HIF: %d\n", status); - goto err_wmi_detach; + goto err_htt_rx_detach; } status = ath10k_htc_wait_target(&ar->htc); @@ -817,15 +744,30 @@ int ath10k_core_start(struct ath10k *ar) goto err_hif_stop; } - status = ath10k_htt_attach(ar); + status = ath10k_htt_connect(&ar->htt); if (status) { - ath10k_err("could not attach htt (%d)\n", status); + ath10k_err("failed to connect htt (%d)\n", status); goto err_hif_stop; } - status = ath10k_init_connect_htc(ar); - if (status) - goto err_htt_detach; + status = ath10k_wmi_connect(ar); + if (status) { + ath10k_err("could not connect wmi: %d\n", status); + goto err_hif_stop; + } + + status = ath10k_htc_start(&ar->htc); + if (status) { + ath10k_err("failed to start htc: %d\n", status); + goto err_hif_stop; + } + + status = ath10k_wmi_wait_for_service_ready(ar); + if (status <= 0) { + ath10k_warn("wmi service ready event not received"); + status = -ETIMEDOUT; + goto err_htc_stop; + } ath10k_dbg(ATH10K_DBG_BOOT, "firmware %s booted\n", ar->hw->wiphy->fw_version); @@ -833,23 +775,25 @@ int ath10k_core_start(struct ath10k *ar) status = ath10k_wmi_cmd_init(ar); if (status) { ath10k_err("could not send WMI init command (%d)\n", status); - goto err_disconnect_htc; + goto err_htc_stop; } status = ath10k_wmi_wait_for_unified_ready(ar); if (status <= 0) { ath10k_err("wmi unified ready event not received\n"); status = -ETIMEDOUT; - goto err_disconnect_htc; + goto err_htc_stop; } - status = ath10k_htt_attach_target(&ar->htt); - if (status) - goto err_disconnect_htc; + status = ath10k_htt_setup(&ar->htt); + if (status) { + ath10k_err("failed to setup htt: %d\n", status); + goto err_htc_stop; + } status = ath10k_debug_start(ar); if (status) - goto err_disconnect_htc; + goto err_htc_stop; ar->free_vdev_map = (1 << TARGET_NUM_VDEVS) - 1; INIT_LIST_HEAD(&ar->arvifs); @@ -868,12 +812,14 @@ int ath10k_core_start(struct ath10k *ar) return 0; -err_disconnect_htc: +err_htc_stop: ath10k_htc_stop(&ar->htc); -err_htt_detach: - ath10k_htt_detach(&ar->htt); err_hif_stop: ath10k_hif_stop(ar); +err_htt_rx_detach: + ath10k_htt_rx_free(&ar->htt); +err_htt_tx_detach: + ath10k_htt_tx_free(&ar->htt); err_wmi_detach: ath10k_wmi_detach(ar); err: @@ -913,7 +859,9 @@ void ath10k_core_stop(struct ath10k *ar) ath10k_debug_stop(ar); ath10k_htc_stop(&ar->htc); - ath10k_htt_detach(&ar->htt); + ath10k_hif_stop(ar); + ath10k_htt_tx_free(&ar->htt); + ath10k_htt_rx_free(&ar->htt); ath10k_wmi_detach(ar); } EXPORT_SYMBOL(ath10k_core_stop); @@ -1005,22 +953,15 @@ static int ath10k_core_check_chip_id(struct ath10k *ar) return 0; } -int ath10k_core_register(struct ath10k *ar, u32 chip_id) +static void ath10k_core_register_work(struct work_struct *work) { + struct ath10k *ar = container_of(work, struct ath10k, register_work); int status; - ar->chip_id = chip_id; - - status = ath10k_core_check_chip_id(ar); - if (status) { - ath10k_err("Unsupported chip id 0x%08x\n", ar->chip_id); - return status; - } - status = ath10k_core_probe_fw(ar); if (status) { ath10k_err("could not probe fw (%d)\n", status); - return status; + goto err; } status = ath10k_mac_register(ar); @@ -1035,18 +976,43 @@ int ath10k_core_register(struct ath10k *ar, u32 chip_id) goto err_unregister_mac; } - return 0; + set_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags); + return; err_unregister_mac: ath10k_mac_unregister(ar); err_release_fw: ath10k_core_free_firmware_files(ar); - return status; +err: + device_release_driver(ar->dev); + return; +} + +int ath10k_core_register(struct ath10k *ar, u32 chip_id) +{ + int status; + + ar->chip_id = chip_id; + + status = ath10k_core_check_chip_id(ar); + if (status) { + ath10k_err("Unsupported chip id 0x%08x\n", ar->chip_id); + return status; + } + + queue_work(ar->workqueue, &ar->register_work); + + return 0; } EXPORT_SYMBOL(ath10k_core_register); void ath10k_core_unregister(struct ath10k *ar) { + cancel_work_sync(&ar->register_work); + + if (!test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags)) + return; + /* We must unregister from mac80211 before we stop HTC and HIF. * Otherwise we will fail to submit commands to FW and mac80211 will be * unhappy about callback failures. */ @@ -1058,6 +1024,71 @@ void ath10k_core_unregister(struct ath10k *ar) } EXPORT_SYMBOL(ath10k_core_unregister); +struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev, + const struct ath10k_hif_ops *hif_ops) +{ + struct ath10k *ar; + + ar = ath10k_mac_create(); + if (!ar) + return NULL; + + ar->ath_common.priv = ar; + ar->ath_common.hw = ar->hw; + + ar->p2p = !!ath10k_p2p; + ar->dev = dev; + + ar->hif.priv = hif_priv; + ar->hif.ops = hif_ops; + + init_completion(&ar->scan.started); + init_completion(&ar->scan.completed); + init_completion(&ar->scan.on_channel); + init_completion(&ar->target_suspend); + + init_completion(&ar->install_key_done); + init_completion(&ar->vdev_setup_done); + + setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar); + + ar->workqueue = create_singlethread_workqueue("ath10k_wq"); + if (!ar->workqueue) + goto err_wq; + + mutex_init(&ar->conf_mutex); + spin_lock_init(&ar->data_lock); + + INIT_LIST_HEAD(&ar->peers); + init_waitqueue_head(&ar->peer_mapping_wq); + + init_completion(&ar->offchan_tx_completed); + INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work); + skb_queue_head_init(&ar->offchan_tx_queue); + + INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work); + skb_queue_head_init(&ar->wmi_mgmt_tx_queue); + + INIT_WORK(&ar->register_work, ath10k_core_register_work); + INIT_WORK(&ar->restart_work, ath10k_core_restart); + + return ar; + +err_wq: + ath10k_mac_destroy(ar); + return NULL; +} +EXPORT_SYMBOL(ath10k_core_create); + +void ath10k_core_destroy(struct ath10k *ar) +{ + flush_workqueue(ar->workqueue); + destroy_workqueue(ar->workqueue); + + ath10k_mac_destroy(ar); +} +EXPORT_SYMBOL(ath10k_core_destroy); + MODULE_AUTHOR("Qualcomm Atheros"); MODULE_DESCRIPTION("Core module for QCA988X PCIe devices."); MODULE_LICENSE("Dual BSD/GPL"); |