1 // SPDX-License-Identifier: GPL-2.0-only
2 /******************************************************************************
3 *
4 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
5 * Copyright(c) 2015 Intel Deutschland GmbH
6 *
7 * Contact Information:
8 * Intel Linux Wireless <linuxwifi@intel.com>
9 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
10 *
11 *****************************************************************************/
12
13 #include <linux/kernel.h>
14
15 #include "iwl-io.h"
16 #include "iwl-agn-hw.h"
17 #include "iwl-trans.h"
18 #include "iwl-fh.h"
19 #include "iwl-op-mode.h"
20
21 #include "dev.h"
22 #include "agn.h"
23 #include "calib.h"
24
25 /******************************************************************************
26 *
27 * uCode download functions
28 *
29 ******************************************************************************/
30
31 /*
32 * Calibration
33 */
iwl_set_Xtal_calib(struct iwl_priv * priv)34 static int iwl_set_Xtal_calib(struct iwl_priv *priv)
35 {
36 struct iwl_calib_xtal_freq_cmd cmd;
37 __le16 *xtal_calib = priv->nvm_data->xtal_calib;
38
39 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
40 cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
41 cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
42 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
43 }
44
iwl_set_temperature_offset_calib(struct iwl_priv * priv)45 static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
46 {
47 struct iwl_calib_temperature_offset_cmd cmd;
48
49 memset(&cmd, 0, sizeof(cmd));
50 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
51 cmd.radio_sensor_offset = priv->nvm_data->raw_temperature;
52 if (!(cmd.radio_sensor_offset))
53 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
54
55 IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
56 le16_to_cpu(cmd.radio_sensor_offset));
57 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
58 }
59
iwl_set_temperature_offset_calib_v2(struct iwl_priv * priv)60 static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
61 {
62 struct iwl_calib_temperature_offset_v2_cmd cmd;
63
64 memset(&cmd, 0, sizeof(cmd));
65 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
66 cmd.radio_sensor_offset_high = priv->nvm_data->kelvin_temperature;
67 cmd.radio_sensor_offset_low = priv->nvm_data->raw_temperature;
68 if (!cmd.radio_sensor_offset_low) {
69 IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
70 cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
71 cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
72 }
73 cmd.burntVoltageRef = priv->nvm_data->calib_voltage;
74
75 IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
76 le16_to_cpu(cmd.radio_sensor_offset_high));
77 IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
78 le16_to_cpu(cmd.radio_sensor_offset_low));
79 IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
80 le16_to_cpu(cmd.burntVoltageRef));
81
82 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
83 }
84
iwl_send_calib_cfg(struct iwl_priv * priv)85 static int iwl_send_calib_cfg(struct iwl_priv *priv)
86 {
87 struct iwl_calib_cfg_cmd calib_cfg_cmd;
88 struct iwl_host_cmd cmd = {
89 .id = CALIBRATION_CFG_CMD,
90 .len = { sizeof(struct iwl_calib_cfg_cmd), },
91 .data = { &calib_cfg_cmd, },
92 };
93
94 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
95 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
96 calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
97 calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
98 calib_cfg_cmd.ucd_calib_cfg.flags =
99 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
100
101 return iwl_dvm_send_cmd(priv, &cmd);
102 }
103
iwl_init_alive_start(struct iwl_priv * priv)104 int iwl_init_alive_start(struct iwl_priv *priv)
105 {
106 int ret;
107
108 if (priv->lib->bt_params &&
109 priv->lib->bt_params->advanced_bt_coexist) {
110 /*
111 * Tell uCode we are ready to perform calibration
112 * need to perform this before any calibration
113 * no need to close the envlope since we are going
114 * to load the runtime uCode later.
115 */
116 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
117 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
118 if (ret)
119 return ret;
120
121 }
122
123 ret = iwl_send_calib_cfg(priv);
124 if (ret)
125 return ret;
126
127 /**
128 * temperature offset calibration is only needed for runtime ucode,
129 * so prepare the value now.
130 */
131 if (priv->lib->need_temp_offset_calib) {
132 if (priv->lib->temp_offset_v2)
133 return iwl_set_temperature_offset_calib_v2(priv);
134 else
135 return iwl_set_temperature_offset_calib(priv);
136 }
137
138 return 0;
139 }
140
iwl_send_wimax_coex(struct iwl_priv * priv)141 static int iwl_send_wimax_coex(struct iwl_priv *priv)
142 {
143 struct iwl_wimax_coex_cmd coex_cmd;
144
145 /* coexistence is disabled */
146 memset(&coex_cmd, 0, sizeof(coex_cmd));
147
148 return iwl_dvm_send_cmd_pdu(priv,
149 COEX_PRIORITY_TABLE_CMD, 0,
150 sizeof(coex_cmd), &coex_cmd);
151 }
152
153 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
154 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
155 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
156 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
157 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
158 ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
159 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
160 ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
161 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
162 ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
163 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
164 ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
165 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
166 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
167 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
168 ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
169 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
170 ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
171 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
172 0, 0, 0, 0, 0, 0, 0
173 };
174
iwl_send_prio_tbl(struct iwl_priv * priv)175 void iwl_send_prio_tbl(struct iwl_priv *priv)
176 {
177 struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
178
179 memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
180 sizeof(iwl_bt_prio_tbl));
181 if (iwl_dvm_send_cmd_pdu(priv,
182 REPLY_BT_COEX_PRIO_TABLE, 0,
183 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
184 IWL_ERR(priv, "failed to send BT prio tbl command\n");
185 }
186
iwl_send_bt_env(struct iwl_priv * priv,u8 action,u8 type)187 int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
188 {
189 struct iwl_bt_coex_prot_env_cmd env_cmd;
190 int ret;
191
192 env_cmd.action = action;
193 env_cmd.type = type;
194 ret = iwl_dvm_send_cmd_pdu(priv,
195 REPLY_BT_COEX_PROT_ENV, 0,
196 sizeof(env_cmd), &env_cmd);
197 if (ret)
198 IWL_ERR(priv, "failed to send BT env command\n");
199 return ret;
200 }
201
202 static const u8 iwlagn_default_queue_to_tx_fifo[] = {
203 IWL_TX_FIFO_VO,
204 IWL_TX_FIFO_VI,
205 IWL_TX_FIFO_BE,
206 IWL_TX_FIFO_BK,
207 };
208
209 static const u8 iwlagn_ipan_queue_to_tx_fifo[] = {
210 IWL_TX_FIFO_VO,
211 IWL_TX_FIFO_VI,
212 IWL_TX_FIFO_BE,
213 IWL_TX_FIFO_BK,
214 IWL_TX_FIFO_BK_IPAN,
215 IWL_TX_FIFO_BE_IPAN,
216 IWL_TX_FIFO_VI_IPAN,
217 IWL_TX_FIFO_VO_IPAN,
218 IWL_TX_FIFO_BE_IPAN,
219 IWL_TX_FIFO_UNUSED,
220 IWL_TX_FIFO_AUX,
221 };
222
iwl_alive_notify(struct iwl_priv * priv)223 static int iwl_alive_notify(struct iwl_priv *priv)
224 {
225 const u8 *queue_to_txf;
226 u8 n_queues;
227 int ret;
228 int i;
229
230 iwl_trans_fw_alive(priv->trans, 0);
231
232 if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN &&
233 priv->nvm_data->sku_cap_ipan_enable) {
234 n_queues = ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
235 queue_to_txf = iwlagn_ipan_queue_to_tx_fifo;
236 } else {
237 n_queues = ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
238 queue_to_txf = iwlagn_default_queue_to_tx_fifo;
239 }
240
241 for (i = 0; i < n_queues; i++)
242 if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED)
243 iwl_trans_ac_txq_enable(priv->trans, i,
244 queue_to_txf[i], 0);
245
246 priv->passive_no_rx = false;
247 priv->transport_queue_stop = 0;
248
249 ret = iwl_send_wimax_coex(priv);
250 if (ret)
251 return ret;
252
253 if (!priv->lib->no_xtal_calib) {
254 ret = iwl_set_Xtal_calib(priv);
255 if (ret)
256 return ret;
257 }
258
259 return iwl_send_calib_results(priv);
260 }
261
262 struct iwl_alive_data {
263 bool valid;
264 u8 subtype;
265 };
266
iwl_alive_fn(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)267 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
268 struct iwl_rx_packet *pkt, void *data)
269 {
270 struct iwl_priv *priv =
271 container_of(notif_wait, struct iwl_priv, notif_wait);
272 struct iwl_alive_data *alive_data = data;
273 struct iwl_alive_resp *palive;
274
275 palive = (void *)pkt->data;
276
277 IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
278 "0x%01X 0x%01X\n",
279 palive->is_valid, palive->ver_type,
280 palive->ver_subtype);
281
282 priv->device_pointers.error_event_table =
283 le32_to_cpu(palive->error_event_table_ptr);
284 priv->device_pointers.log_event_table =
285 le32_to_cpu(palive->log_event_table_ptr);
286
287 alive_data->subtype = palive->ver_subtype;
288 alive_data->valid = palive->is_valid == UCODE_VALID_OK;
289
290 return true;
291 }
292
293 #define UCODE_ALIVE_TIMEOUT HZ
294 #define UCODE_CALIB_TIMEOUT (2*HZ)
295
iwl_load_ucode_wait_alive(struct iwl_priv * priv,enum iwl_ucode_type ucode_type)296 int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
297 enum iwl_ucode_type ucode_type)
298 {
299 struct iwl_notification_wait alive_wait;
300 struct iwl_alive_data alive_data;
301 const struct fw_img *fw;
302 int ret;
303 enum iwl_ucode_type old_type;
304 static const u16 alive_cmd[] = { REPLY_ALIVE };
305
306 fw = iwl_get_ucode_image(priv->fw, ucode_type);
307 if (WARN_ON(!fw))
308 return -EINVAL;
309
310 old_type = priv->cur_ucode;
311 priv->cur_ucode = ucode_type;
312 priv->ucode_loaded = false;
313
314 iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
315 alive_cmd, ARRAY_SIZE(alive_cmd),
316 iwl_alive_fn, &alive_data);
317
318 ret = iwl_trans_start_fw(priv->trans, fw, false);
319 if (ret) {
320 priv->cur_ucode = old_type;
321 iwl_remove_notification(&priv->notif_wait, &alive_wait);
322 return ret;
323 }
324
325 /*
326 * Some things may run in the background now, but we
327 * just wait for the ALIVE notification here.
328 */
329 ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
330 UCODE_ALIVE_TIMEOUT);
331 if (ret) {
332 priv->cur_ucode = old_type;
333 return ret;
334 }
335
336 if (!alive_data.valid) {
337 IWL_ERR(priv, "Loaded ucode is not valid!\n");
338 priv->cur_ucode = old_type;
339 return -EIO;
340 }
341
342 priv->ucode_loaded = true;
343
344 if (ucode_type != IWL_UCODE_WOWLAN) {
345 /* delay a bit to give rfkill time to run */
346 msleep(5);
347 }
348
349 ret = iwl_alive_notify(priv);
350 if (ret) {
351 IWL_WARN(priv,
352 "Could not complete ALIVE transition: %d\n", ret);
353 priv->cur_ucode = old_type;
354 return ret;
355 }
356
357 return 0;
358 }
359
iwlagn_wait_calib(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)360 static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait,
361 struct iwl_rx_packet *pkt, void *data)
362 {
363 struct iwl_priv *priv = data;
364 struct iwl_calib_hdr *hdr;
365
366 if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) {
367 WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION);
368 return true;
369 }
370
371 hdr = (struct iwl_calib_hdr *)pkt->data;
372
373 if (iwl_calib_set(priv, hdr, iwl_rx_packet_payload_len(pkt)))
374 IWL_ERR(priv, "Failed to record calibration data %d\n",
375 hdr->op_code);
376
377 return false;
378 }
379
iwl_run_init_ucode(struct iwl_priv * priv)380 int iwl_run_init_ucode(struct iwl_priv *priv)
381 {
382 struct iwl_notification_wait calib_wait;
383 static const u16 calib_complete[] = {
384 CALIBRATION_RES_NOTIFICATION,
385 CALIBRATION_COMPLETE_NOTIFICATION
386 };
387 int ret;
388
389 lockdep_assert_held(&priv->mutex);
390
391 /* No init ucode required? Curious, but maybe ok */
392 if (!priv->fw->img[IWL_UCODE_INIT].num_sec)
393 return 0;
394
395 iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
396 calib_complete, ARRAY_SIZE(calib_complete),
397 iwlagn_wait_calib, priv);
398
399 /* Will also start the device */
400 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
401 if (ret)
402 goto error;
403
404 ret = iwl_init_alive_start(priv);
405 if (ret)
406 goto error;
407
408 /*
409 * Some things may run in the background now, but we
410 * just wait for the calibration complete notification.
411 */
412 ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
413 UCODE_CALIB_TIMEOUT);
414
415 goto out;
416
417 error:
418 iwl_remove_notification(&priv->notif_wait, &calib_wait);
419 out:
420 /* Whatever happened, stop the device */
421 iwl_trans_stop_device(priv->trans);
422 priv->ucode_loaded = false;
423
424 return ret;
425 }
426
