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