1 /******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
19 * USA
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called COPYING.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
29
30 #include <linux/kernel.h>
31
32 #include "iwl-io.h"
33 #include "iwl-agn-hw.h"
34 #include "iwl-trans.h"
35 #include "iwl-fh.h"
36 #include "iwl-op-mode.h"
37
38 #include "dev.h"
39 #include "agn.h"
40 #include "calib.h"
41
42 /******************************************************************************
43 *
44 * uCode download functions
45 *
46 ******************************************************************************/
47
48 static inline const struct fw_img *
iwl_get_ucode_image(struct iwl_priv * priv,enum iwl_ucode_type ucode_type)49 iwl_get_ucode_image(struct iwl_priv *priv, enum iwl_ucode_type ucode_type)
50 {
51 if (ucode_type >= IWL_UCODE_TYPE_MAX)
52 return NULL;
53
54 return &priv->fw->img[ucode_type];
55 }
56
57 /*
58 * Calibration
59 */
iwl_set_Xtal_calib(struct iwl_priv * priv)60 static int iwl_set_Xtal_calib(struct iwl_priv *priv)
61 {
62 struct iwl_calib_xtal_freq_cmd cmd;
63 __le16 *xtal_calib = priv->nvm_data->xtal_calib;
64
65 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
66 cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
67 cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
68 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
69 }
70
iwl_set_temperature_offset_calib(struct iwl_priv * priv)71 static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
72 {
73 struct iwl_calib_temperature_offset_cmd cmd;
74
75 memset(&cmd, 0, sizeof(cmd));
76 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
77 cmd.radio_sensor_offset = priv->nvm_data->raw_temperature;
78 if (!(cmd.radio_sensor_offset))
79 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
80
81 IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
82 le16_to_cpu(cmd.radio_sensor_offset));
83 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
84 }
85
iwl_set_temperature_offset_calib_v2(struct iwl_priv * priv)86 static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
87 {
88 struct iwl_calib_temperature_offset_v2_cmd cmd;
89
90 memset(&cmd, 0, sizeof(cmd));
91 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
92 cmd.radio_sensor_offset_high = priv->nvm_data->kelvin_temperature;
93 cmd.radio_sensor_offset_low = priv->nvm_data->raw_temperature;
94 if (!cmd.radio_sensor_offset_low) {
95 IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
96 cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
97 cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
98 }
99 cmd.burntVoltageRef = priv->nvm_data->calib_voltage;
100
101 IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
102 le16_to_cpu(cmd.radio_sensor_offset_high));
103 IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
104 le16_to_cpu(cmd.radio_sensor_offset_low));
105 IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
106 le16_to_cpu(cmd.burntVoltageRef));
107
108 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
109 }
110
iwl_send_calib_cfg(struct iwl_priv * priv)111 static int iwl_send_calib_cfg(struct iwl_priv *priv)
112 {
113 struct iwl_calib_cfg_cmd calib_cfg_cmd;
114 struct iwl_host_cmd cmd = {
115 .id = CALIBRATION_CFG_CMD,
116 .len = { sizeof(struct iwl_calib_cfg_cmd), },
117 .data = { &calib_cfg_cmd, },
118 };
119
120 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
121 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
122 calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
123 calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
124 calib_cfg_cmd.ucd_calib_cfg.flags =
125 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
126
127 return iwl_dvm_send_cmd(priv, &cmd);
128 }
129
iwl_init_alive_start(struct iwl_priv * priv)130 int iwl_init_alive_start(struct iwl_priv *priv)
131 {
132 int ret;
133
134 if (priv->lib->bt_params &&
135 priv->lib->bt_params->advanced_bt_coexist) {
136 /*
137 * Tell uCode we are ready to perform calibration
138 * need to perform this before any calibration
139 * no need to close the envlope since we are going
140 * to load the runtime uCode later.
141 */
142 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
143 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
144 if (ret)
145 return ret;
146
147 }
148
149 ret = iwl_send_calib_cfg(priv);
150 if (ret)
151 return ret;
152
153 /**
154 * temperature offset calibration is only needed for runtime ucode,
155 * so prepare the value now.
156 */
157 if (priv->lib->need_temp_offset_calib) {
158 if (priv->lib->temp_offset_v2)
159 return iwl_set_temperature_offset_calib_v2(priv);
160 else
161 return iwl_set_temperature_offset_calib(priv);
162 }
163
164 return 0;
165 }
166
iwl_send_wimax_coex(struct iwl_priv * priv)167 static int iwl_send_wimax_coex(struct iwl_priv *priv)
168 {
169 struct iwl_wimax_coex_cmd coex_cmd;
170
171 /* coexistence is disabled */
172 memset(&coex_cmd, 0, sizeof(coex_cmd));
173
174 return iwl_dvm_send_cmd_pdu(priv,
175 COEX_PRIORITY_TABLE_CMD, 0,
176 sizeof(coex_cmd), &coex_cmd);
177 }
178
179 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
180 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
181 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
182 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
183 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
184 ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
185 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
186 ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
187 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
188 ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
189 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
190 ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
191 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
192 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
193 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
194 ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
195 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
196 ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
197 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
198 0, 0, 0, 0, 0, 0, 0
199 };
200
iwl_send_prio_tbl(struct iwl_priv * priv)201 void iwl_send_prio_tbl(struct iwl_priv *priv)
202 {
203 struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
204
205 memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
206 sizeof(iwl_bt_prio_tbl));
207 if (iwl_dvm_send_cmd_pdu(priv,
208 REPLY_BT_COEX_PRIO_TABLE, 0,
209 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
210 IWL_ERR(priv, "failed to send BT prio tbl command\n");
211 }
212
iwl_send_bt_env(struct iwl_priv * priv,u8 action,u8 type)213 int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
214 {
215 struct iwl_bt_coex_prot_env_cmd env_cmd;
216 int ret;
217
218 env_cmd.action = action;
219 env_cmd.type = type;
220 ret = iwl_dvm_send_cmd_pdu(priv,
221 REPLY_BT_COEX_PROT_ENV, 0,
222 sizeof(env_cmd), &env_cmd);
223 if (ret)
224 IWL_ERR(priv, "failed to send BT env command\n");
225 return ret;
226 }
227
228 static const u8 iwlagn_default_queue_to_tx_fifo[] = {
229 IWL_TX_FIFO_VO,
230 IWL_TX_FIFO_VI,
231 IWL_TX_FIFO_BE,
232 IWL_TX_FIFO_BK,
233 };
234
235 static const u8 iwlagn_ipan_queue_to_tx_fifo[] = {
236 IWL_TX_FIFO_VO,
237 IWL_TX_FIFO_VI,
238 IWL_TX_FIFO_BE,
239 IWL_TX_FIFO_BK,
240 IWL_TX_FIFO_BK_IPAN,
241 IWL_TX_FIFO_BE_IPAN,
242 IWL_TX_FIFO_VI_IPAN,
243 IWL_TX_FIFO_VO_IPAN,
244 IWL_TX_FIFO_BE_IPAN,
245 IWL_TX_FIFO_UNUSED,
246 IWL_TX_FIFO_AUX,
247 };
248
iwl_alive_notify(struct iwl_priv * priv)249 static int iwl_alive_notify(struct iwl_priv *priv)
250 {
251 const u8 *queue_to_txf;
252 u8 n_queues;
253 int ret;
254 int i;
255
256 iwl_trans_fw_alive(priv->trans, 0);
257
258 if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN &&
259 priv->nvm_data->sku_cap_ipan_enable) {
260 n_queues = ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
261 queue_to_txf = iwlagn_ipan_queue_to_tx_fifo;
262 } else {
263 n_queues = ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
264 queue_to_txf = iwlagn_default_queue_to_tx_fifo;
265 }
266
267 for (i = 0; i < n_queues; i++)
268 if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED)
269 iwl_trans_ac_txq_enable(priv->trans, i,
270 queue_to_txf[i], 0);
271
272 priv->passive_no_rx = false;
273 priv->transport_queue_stop = 0;
274
275 ret = iwl_send_wimax_coex(priv);
276 if (ret)
277 return ret;
278
279 if (!priv->lib->no_xtal_calib) {
280 ret = iwl_set_Xtal_calib(priv);
281 if (ret)
282 return ret;
283 }
284
285 return iwl_send_calib_results(priv);
286 }
287
288 struct iwl_alive_data {
289 bool valid;
290 u8 subtype;
291 };
292
iwl_alive_fn(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)293 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
294 struct iwl_rx_packet *pkt, void *data)
295 {
296 struct iwl_priv *priv =
297 container_of(notif_wait, struct iwl_priv, notif_wait);
298 struct iwl_alive_data *alive_data = data;
299 struct iwl_alive_resp *palive;
300
301 palive = (void *)pkt->data;
302
303 IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
304 "0x%01X 0x%01X\n",
305 palive->is_valid, palive->ver_type,
306 palive->ver_subtype);
307
308 priv->device_pointers.error_event_table =
309 le32_to_cpu(palive->error_event_table_ptr);
310 priv->device_pointers.log_event_table =
311 le32_to_cpu(palive->log_event_table_ptr);
312
313 alive_data->subtype = palive->ver_subtype;
314 alive_data->valid = palive->is_valid == UCODE_VALID_OK;
315
316 return true;
317 }
318
319 #define UCODE_ALIVE_TIMEOUT HZ
320 #define UCODE_CALIB_TIMEOUT (2*HZ)
321
iwl_load_ucode_wait_alive(struct iwl_priv * priv,enum iwl_ucode_type ucode_type)322 int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
323 enum iwl_ucode_type ucode_type)
324 {
325 struct iwl_notification_wait alive_wait;
326 struct iwl_alive_data alive_data;
327 const struct fw_img *fw;
328 int ret;
329 enum iwl_ucode_type old_type;
330 static const u8 alive_cmd[] = { REPLY_ALIVE };
331
332 fw = iwl_get_ucode_image(priv, ucode_type);
333 if (WARN_ON(!fw))
334 return -EINVAL;
335
336 old_type = priv->cur_ucode;
337 priv->cur_ucode = ucode_type;
338 priv->ucode_loaded = false;
339
340 iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
341 alive_cmd, ARRAY_SIZE(alive_cmd),
342 iwl_alive_fn, &alive_data);
343
344 ret = iwl_trans_start_fw(priv->trans, fw, false);
345 if (ret) {
346 priv->cur_ucode = old_type;
347 iwl_remove_notification(&priv->notif_wait, &alive_wait);
348 return ret;
349 }
350
351 /*
352 * Some things may run in the background now, but we
353 * just wait for the ALIVE notification here.
354 */
355 ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
356 UCODE_ALIVE_TIMEOUT);
357 if (ret) {
358 priv->cur_ucode = old_type;
359 return ret;
360 }
361
362 if (!alive_data.valid) {
363 IWL_ERR(priv, "Loaded ucode is not valid!\n");
364 priv->cur_ucode = old_type;
365 return -EIO;
366 }
367
368 priv->ucode_loaded = true;
369
370 if (ucode_type != IWL_UCODE_WOWLAN) {
371 /* delay a bit to give rfkill time to run */
372 msleep(5);
373 }
374
375 ret = iwl_alive_notify(priv);
376 if (ret) {
377 IWL_WARN(priv,
378 "Could not complete ALIVE transition: %d\n", ret);
379 priv->cur_ucode = old_type;
380 return ret;
381 }
382
383 return 0;
384 }
385
iwlagn_wait_calib(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)386 static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait,
387 struct iwl_rx_packet *pkt, void *data)
388 {
389 struct iwl_priv *priv = data;
390 struct iwl_calib_hdr *hdr;
391
392 if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) {
393 WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION);
394 return true;
395 }
396
397 hdr = (struct iwl_calib_hdr *)pkt->data;
398
399 if (iwl_calib_set(priv, hdr, iwl_rx_packet_payload_len(pkt)))
400 IWL_ERR(priv, "Failed to record calibration data %d\n",
401 hdr->op_code);
402
403 return false;
404 }
405
iwl_run_init_ucode(struct iwl_priv * priv)406 int iwl_run_init_ucode(struct iwl_priv *priv)
407 {
408 struct iwl_notification_wait calib_wait;
409 static const u8 calib_complete[] = {
410 CALIBRATION_RES_NOTIFICATION,
411 CALIBRATION_COMPLETE_NOTIFICATION
412 };
413 int ret;
414
415 lockdep_assert_held(&priv->mutex);
416
417 /* No init ucode required? Curious, but maybe ok */
418 if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
419 return 0;
420
421 iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
422 calib_complete, ARRAY_SIZE(calib_complete),
423 iwlagn_wait_calib, priv);
424
425 /* Will also start the device */
426 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
427 if (ret)
428 goto error;
429
430 ret = iwl_init_alive_start(priv);
431 if (ret)
432 goto error;
433
434 /*
435 * Some things may run in the background now, but we
436 * just wait for the calibration complete notification.
437 */
438 ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
439 UCODE_CALIB_TIMEOUT);
440
441 goto out;
442
443 error:
444 iwl_remove_notification(&priv->notif_wait, &calib_wait);
445 out:
446 /* Whatever happened, stop the device */
447 iwl_trans_stop_device(priv->trans);
448 priv->ucode_loaded = false;
449
450 return ret;
451 }
452