1 // SPDX-License-Identifier: GPL-2.0-only
3  * Handling of the chip-to-host events (aka indications) of the hardware API.
5  * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
6  * Copyright (c) 2010, ST-Ericsson
24 	int cmd = hif->id;  in wfx_hif_generic_confirm()
25 	int len = le16_to_cpu(hif->len) - 4; /* drop header */  in wfx_hif_generic_confirm()
27 	WARN(!mutex_is_locked(&wdev->hif_cmd.lock), "data locking error");  in wfx_hif_generic_confirm()
29 	if (!wdev->hif_cmd.buf_send) {  in wfx_hif_generic_confirm()
30 		dev_warn(wdev->dev, "unexpected confirmation: 0x%.2x\n", cmd);  in wfx_hif_generic_confirm()
31 		return -EINVAL;  in wfx_hif_generic_confirm()
34 	if (cmd != wdev->hif_cmd.buf_send->id) {  in wfx_hif_generic_confirm()
35 		dev_warn(wdev->dev, "chip response mismatch request: 0x%.2x vs 0x%.2x\n",  in wfx_hif_generic_confirm()
36 			 cmd, wdev->hif_cmd.buf_send->id);  in wfx_hif_generic_confirm()
37 		return -EINVAL;  in wfx_hif_generic_confirm()
40 	if (wdev->hif_cmd.buf_recv) {  in wfx_hif_generic_confirm()
41 		if (wdev->hif_cmd.len_recv >= len && len > 0)  in wfx_hif_generic_confirm()
42 			memcpy(wdev->hif_cmd.buf_recv, buf, len);  in wfx_hif_generic_confirm()
44 			status = -EIO;  in wfx_hif_generic_confirm()
46 	wdev->hif_cmd.ret = status;  in wfx_hif_generic_confirm()
48 	complete(&wdev->hif_cmd.done);  in wfx_hif_generic_confirm()
67 	WARN(body->num_tx_confs <= 0, "corrupted message");  in wfx_hif_multi_tx_confirm()
68 	for (i = 0; i < body->num_tx_confs; i++)  in wfx_hif_multi_tx_confirm()
69 		wfx_tx_confirm_cb(wdev, &body->tx_conf_payload[i]);  in wfx_hif_multi_tx_confirm()
78 	if (body->status || body->firmware_type > 4) {  in wfx_hif_startup_indication()
79 		dev_err(wdev->dev, "received invalid startup indication");  in wfx_hif_startup_indication()
80 		return -EINVAL;  in wfx_hif_startup_indication()
82 	memcpy(&wdev->hw_caps, body, sizeof(struct wfx_hif_ind_startup));  in wfx_hif_startup_indication()
83 	complete(&wdev->firmware_ready);  in wfx_hif_startup_indication()
90 	if (!wdev->pdata.gpio_wakeup || gpiod_get_value(wdev->pdata.gpio_wakeup) == 0) {  in wfx_hif_wakeup_indication()
91 		dev_warn(wdev->dev, "unexpected wake-up indication\n");  in wfx_hif_wakeup_indication()
92 		return -EIO;  in wfx_hif_wakeup_indication()
100 	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);  in wfx_hif_receive_indication()
104 		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);  in wfx_hif_receive_indication()
105 		return -EIO;  in wfx_hif_receive_indication()
116 	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);  in wfx_hif_event_indication()
118 	int type = le32_to_cpu(body->event_id);  in wfx_hif_event_indication()
121 		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);  in wfx_hif_event_indication()
122 		return -EIO;  in wfx_hif_event_indication()
127 		wfx_event_report_rssi(wvif, body->event_data.rcpi_rssi);  in wfx_hif_event_indication()
130 		schedule_delayed_work(&wvif->beacon_loss_work, 0);  in wfx_hif_event_indication()
133 		cancel_delayed_work(&wvif->beacon_loss_work);  in wfx_hif_event_indication()
134 		dev_dbg(wdev->dev, "ignore BSSREGAINED indication\n");  in wfx_hif_event_indication()
137 		dev_warn(wdev->dev, "error while processing power save request: %d\n",  in wfx_hif_event_indication()
138 			 le32_to_cpu(body->event_data.ps_mode_error));  in wfx_hif_event_indication()
141 		dev_warn(wdev->dev, "unhandled event indication: %.2x\n", type);  in wfx_hif_event_indication()
150 	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);  in wfx_hif_pm_mode_complete_indication()
153 		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);  in wfx_hif_pm_mode_complete_indication()
154 		return -EIO;  in wfx_hif_pm_mode_complete_indication()
156 	complete(&wvif->set_pm_mode_complete);  in wfx_hif_pm_mode_complete_indication()
164 	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);  in wfx_hif_scan_complete_indication()
168 		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);  in wfx_hif_scan_complete_indication()
169 		return -EIO;  in wfx_hif_scan_complete_indication()
172 	wfx_scan_complete(wvif, body->num_channels_completed);  in wfx_hif_scan_complete_indication()
180 	struct wfx_vif *wvif = wdev_to_wvif(wdev, hif->interface);  in wfx_hif_join_complete_indication()
183 		dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);  in wfx_hif_join_complete_indication()
184 		return -EIO;  in wfx_hif_join_complete_indication()
186 	dev_warn(wdev->dev, "unattended JoinCompleteInd\n");  in wfx_hif_join_complete_indication()
197 	if (body->bc_mc_only) {  in wfx_hif_suspend_resume_indication()
198 		wvif = wdev_to_wvif(wdev, hif->interface);  in wfx_hif_suspend_resume_indication()
200 			dev_warn(wdev->dev, "%s: received event for non-existent vif\n", __func__);  in wfx_hif_suspend_resume_indication()
201 			return -EIO;  in wfx_hif_suspend_resume_indication()
203 		if (body->resume)  in wfx_hif_suspend_resume_indication()
208 		WARN(body->peer_sta_set, "misunderstood indication");  in wfx_hif_suspend_resume_indication()
209 		WARN(hif->interface != 2, "misunderstood indication");  in wfx_hif_suspend_resume_indication()
210 		if (body->resume)  in wfx_hif_suspend_resume_indication()
223 	int type = le32_to_cpu(body->type);  in wfx_hif_generic_indication()
229 		dev_info(wdev->dev, "firmware says: %s\n", (char *)&body->data);  in wfx_hif_generic_indication()
232 		mutex_lock(&wdev->rx_stats_lock);  in wfx_hif_generic_indication()
233 		/* Older firmware send a generic indication beside RxStats */  in wfx_hif_generic_indication()
235 			dev_info(wdev->dev, "Rx test ongoing. Temperature: %d degrees C\n",  in wfx_hif_generic_indication()
236 				 body->data.rx_stats.current_temp);  in wfx_hif_generic_indication()
237 		memcpy(&wdev->rx_stats, &body->data.rx_stats, sizeof(wdev->rx_stats));  in wfx_hif_generic_indication()
238 		mutex_unlock(&wdev->rx_stats_lock);  in wfx_hif_generic_indication()
241 		mutex_lock(&wdev->tx_power_loop_info_lock);  in wfx_hif_generic_indication()
242 		memcpy(&wdev->tx_power_loop_info, &body->data.tx_power_loop_info,  in wfx_hif_generic_indication()
243 		       sizeof(wdev->tx_power_loop_info));  in wfx_hif_generic_indication()
244 		mutex_unlock(&wdev->tx_power_loop_info_lock);  in wfx_hif_generic_indication()
247 		dev_err(wdev->dev, "generic_indication: unknown indication type: %#.8x\n", type);  in wfx_hif_generic_indication()
248 		return -EIO;  in wfx_hif_generic_indication()
266 		"out-of-range power supply voltage", true },
268 		"out-of-range temperature", true },
270 		"secure link does not expect request during key exchange" },
272 		"secure link session key is invalid" },
274 		"secure link overflow" },
276 		"secure link messages list does not match message encryption" },
278 		"secure link not yet configured" },
283 	/* Following errors only exists in old firmware versions: */
289 		"secure link does not support multi-tx confirmations" },
291 		"secure link session key is outdated" },
293 		"secure link params (nonce or tag) mismatch" },
300 	int type = le32_to_cpu(body->type);  in wfx_hif_error_indication()
301 	int param = (s8)body->data[0];  in wfx_hif_error_indication()
309 			dev_err(wdev->dev, "asynchronous error: %s: %d\n",  in wfx_hif_error_indication()
312 			dev_err(wdev->dev, "asynchronous error: %s\n", hif_errors[i].str);  in wfx_hif_error_indication()
314 		dev_err(wdev->dev, "asynchronous error: unknown: %08x\n", type);  in wfx_hif_error_indication()
316 		       16, 1, hif, le16_to_cpu(hif->len), false);  in wfx_hif_error_indication()
317 	wdev->chip_frozen = true;  in wfx_hif_error_indication()
326 	int type = le32_to_cpu(body->type);  in wfx_hif_exception_indication()
329 		dev_err(wdev->dev, "firmware assert %d\n", le32_to_cpup((__le32 *)body->data));  in wfx_hif_exception_indication()
331 		dev_err(wdev->dev, "firmware exception\n");  in wfx_hif_exception_indication()
333 		       16, 1, hif, le16_to_cpu(hif->len), false);  in wfx_hif_exception_indication()
334 	wdev->chip_frozen = true;  in wfx_hif_exception_indication()
336 	return -1;  in wfx_hif_exception_indication()
364 	const struct wfx_hif_msg *hif = (const struct wfx_hif_msg *)skb->data;  in wfx_handle_rx()
365 	int hif_id = hif->id;  in wfx_handle_rx()
369 		wfx_hif_receive_indication(wdev, hif, hif->body, skb);  in wfx_handle_rx()
373 	if (mutex_is_locked(&wdev->hif_cmd.lock) &&  in wfx_handle_rx()
374 	    wdev->hif_cmd.buf_send && wdev->hif_cmd.buf_send->id == hif_id) {  in wfx_handle_rx()
375 		wfx_hif_generic_confirm(wdev, hif, hif->body);  in wfx_handle_rx()
381 				hif_handlers[i].handler(wdev, hif, hif->body);  in wfx_handle_rx()
386 		dev_err(wdev->dev, "unsupported HIF indication: ID %02x\n", hif_id);  in wfx_handle_rx()
388 		dev_err(wdev->dev, "unexpected HIF confirmation: ID %02x\n", hif_id);  in wfx_handle_rx()