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1/******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
6 * Copyright(c) 2015 Intel Deutschland GmbH
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
20 * USA
21 *
22 * The full GNU General Public License is included in this distribution
23 * in the file called COPYING.
24 *
25 * Contact Information:
26 * Intel Linux Wireless <linuxwifi@intel.com>
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *
29 *****************************************************************************/
30
31#include <linux/kernel.h>
32
33#include "iwl-io.h"
34#include "iwl-agn-hw.h"
35#include "iwl-trans.h"
36#include "iwl-fh.h"
37#include "iwl-op-mode.h"
38
39#include "dev.h"
40#include "agn.h"
41#include "calib.h"
42
43/******************************************************************************
44 *
45 * uCode download functions
46 *
47 ******************************************************************************/
48
49static inline const struct fw_img *
50iwl_get_ucode_image(struct iwl_priv *priv, enum iwl_ucode_type ucode_type)
51{
52 if (ucode_type >= IWL_UCODE_TYPE_MAX)
53 return NULL;
54
55 return &priv->fw->img[ucode_type];
56}
57
58/*
59 * Calibration
60 */
61static int iwl_set_Xtal_calib(struct iwl_priv *priv)
62{
63 struct iwl_calib_xtal_freq_cmd cmd;
64 __le16 *xtal_calib = priv->nvm_data->xtal_calib;
65
66 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
67 cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
68 cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
69 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
70}
71
72static int iwl_set_temperature_offset_calib(struct iwl_priv *priv)
73{
74 struct iwl_calib_temperature_offset_cmd cmd;
75
76 memset(&cmd, 0, sizeof(cmd));
77 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
78 cmd.radio_sensor_offset = priv->nvm_data->raw_temperature;
79 if (!(cmd.radio_sensor_offset))
80 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
81
82 IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
83 le16_to_cpu(cmd.radio_sensor_offset));
84 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
85}
86
87static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv)
88{
89 struct iwl_calib_temperature_offset_v2_cmd cmd;
90
91 memset(&cmd, 0, sizeof(cmd));
92 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
93 cmd.radio_sensor_offset_high = priv->nvm_data->kelvin_temperature;
94 cmd.radio_sensor_offset_low = priv->nvm_data->raw_temperature;
95 if (!cmd.radio_sensor_offset_low) {
96 IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n");
97 cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
98 cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
99 }
100 cmd.burntVoltageRef = priv->nvm_data->calib_voltage;
101
102 IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n",
103 le16_to_cpu(cmd.radio_sensor_offset_high));
104 IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n",
105 le16_to_cpu(cmd.radio_sensor_offset_low));
106 IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n",
107 le16_to_cpu(cmd.burntVoltageRef));
108
109 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd));
110}
111
112static int iwl_send_calib_cfg(struct iwl_priv *priv)
113{
114 struct iwl_calib_cfg_cmd calib_cfg_cmd;
115 struct iwl_host_cmd cmd = {
116 .id = CALIBRATION_CFG_CMD,
117 .len = { sizeof(struct iwl_calib_cfg_cmd), },
118 .data = { &calib_cfg_cmd, },
119 };
120
121 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
122 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
123 calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
124 calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
125 calib_cfg_cmd.ucd_calib_cfg.flags =
126 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
127
128 return iwl_dvm_send_cmd(priv, &cmd);
129}
130
131int iwl_init_alive_start(struct iwl_priv *priv)
132{
133 int ret;
134
135 if (priv->lib->bt_params &&
136 priv->lib->bt_params->advanced_bt_coexist) {
137 /*
138 * Tell uCode we are ready to perform calibration
139 * need to perform this before any calibration
140 * no need to close the envlope since we are going
141 * to load the runtime uCode later.
142 */
143 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
144 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
145 if (ret)
146 return ret;
147
148 }
149
150 ret = iwl_send_calib_cfg(priv);
151 if (ret)
152 return ret;
153
154 /**
155 * temperature offset calibration is only needed for runtime ucode,
156 * so prepare the value now.
157 */
158 if (priv->lib->need_temp_offset_calib) {
159 if (priv->lib->temp_offset_v2)
160 return iwl_set_temperature_offset_calib_v2(priv);
161 else
162 return iwl_set_temperature_offset_calib(priv);
163 }
164
165 return 0;
166}
167
168static int iwl_send_wimax_coex(struct iwl_priv *priv)
169{
170 struct iwl_wimax_coex_cmd coex_cmd;
171
172 /* coexistence is disabled */
173 memset(&coex_cmd, 0, sizeof(coex_cmd));
174
175 return iwl_dvm_send_cmd_pdu(priv,
176 COEX_PRIORITY_TABLE_CMD, 0,
177 sizeof(coex_cmd), &coex_cmd);
178}
179
180static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
181 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
182 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
183 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
184 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
185 ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
186 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
187 ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
188 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
189 ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
190 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
191 ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
192 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
193 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
194 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
195 ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
196 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
197 ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
198 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
199 0, 0, 0, 0, 0, 0, 0
200};
201
202void iwl_send_prio_tbl(struct iwl_priv *priv)
203{
204 struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
205
206 memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
207 sizeof(iwl_bt_prio_tbl));
208 if (iwl_dvm_send_cmd_pdu(priv,
209 REPLY_BT_COEX_PRIO_TABLE, 0,
210 sizeof(prio_tbl_cmd), &prio_tbl_cmd))
211 IWL_ERR(priv, "failed to send BT prio tbl command\n");
212}
213
214int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
215{
216 struct iwl_bt_coex_prot_env_cmd env_cmd;
217 int ret;
218
219 env_cmd.action = action;
220 env_cmd.type = type;
221 ret = iwl_dvm_send_cmd_pdu(priv,
222 REPLY_BT_COEX_PROT_ENV, 0,
223 sizeof(env_cmd), &env_cmd);
224 if (ret)
225 IWL_ERR(priv, "failed to send BT env command\n");
226 return ret;
227}
228
229static const u8 iwlagn_default_queue_to_tx_fifo[] = {
230 IWL_TX_FIFO_VO,
231 IWL_TX_FIFO_VI,
232 IWL_TX_FIFO_BE,
233 IWL_TX_FIFO_BK,
234};
235
236static const u8 iwlagn_ipan_queue_to_tx_fifo[] = {
237 IWL_TX_FIFO_VO,
238 IWL_TX_FIFO_VI,
239 IWL_TX_FIFO_BE,
240 IWL_TX_FIFO_BK,
241 IWL_TX_FIFO_BK_IPAN,
242 IWL_TX_FIFO_BE_IPAN,
243 IWL_TX_FIFO_VI_IPAN,
244 IWL_TX_FIFO_VO_IPAN,
245 IWL_TX_FIFO_BE_IPAN,
246 IWL_TX_FIFO_UNUSED,
247 IWL_TX_FIFO_AUX,
248};
249
250static int iwl_alive_notify(struct iwl_priv *priv)
251{
252 const u8 *queue_to_txf;
253 u8 n_queues;
254 int ret;
255 int i;
256
257 iwl_trans_fw_alive(priv->trans, 0);
258
259 if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN &&
260 priv->nvm_data->sku_cap_ipan_enable) {
261 n_queues = ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
262 queue_to_txf = iwlagn_ipan_queue_to_tx_fifo;
263 } else {
264 n_queues = ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
265 queue_to_txf = iwlagn_default_queue_to_tx_fifo;
266 }
267
268 for (i = 0; i < n_queues; i++)
269 if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED)
270 iwl_trans_ac_txq_enable(priv->trans, i,
271 queue_to_txf[i], 0);
272
273 priv->passive_no_rx = false;
274 priv->transport_queue_stop = 0;
275
276 ret = iwl_send_wimax_coex(priv);
277 if (ret)
278 return ret;
279
280 if (!priv->lib->no_xtal_calib) {
281 ret = iwl_set_Xtal_calib(priv);
282 if (ret)
283 return ret;
284 }
285
286 return iwl_send_calib_results(priv);
287}
288
289struct iwl_alive_data {
290 bool valid;
291 u8 subtype;
292};
293
294static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
295 struct iwl_rx_packet *pkt, void *data)
296{
297 struct iwl_priv *priv =
298 container_of(notif_wait, struct iwl_priv, notif_wait);
299 struct iwl_alive_data *alive_data = data;
300 struct iwl_alive_resp *palive;
301
302 palive = (void *)pkt->data;
303
304 IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
305 "0x%01X 0x%01X\n",
306 palive->is_valid, palive->ver_type,
307 palive->ver_subtype);
308
309 priv->device_pointers.error_event_table =
310 le32_to_cpu(palive->error_event_table_ptr);
311 priv->device_pointers.log_event_table =
312 le32_to_cpu(palive->log_event_table_ptr);
313
314 alive_data->subtype = palive->ver_subtype;
315 alive_data->valid = palive->is_valid == UCODE_VALID_OK;
316
317 return true;
318}
319
320#define UCODE_ALIVE_TIMEOUT HZ
321#define UCODE_CALIB_TIMEOUT (2*HZ)
322
323int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
324 enum iwl_ucode_type ucode_type)
325{
326 struct iwl_notification_wait alive_wait;
327 struct iwl_alive_data alive_data;
328 const struct fw_img *fw;
329 int ret;
330 enum iwl_ucode_type old_type;
331 static const u16 alive_cmd[] = { REPLY_ALIVE };
332
333 fw = iwl_get_ucode_image(priv, ucode_type);
334 if (WARN_ON(!fw))
335 return -EINVAL;
336
337 old_type = priv->cur_ucode;
338 priv->cur_ucode = ucode_type;
339 priv->ucode_loaded = false;
340
341 iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
342 alive_cmd, ARRAY_SIZE(alive_cmd),
343 iwl_alive_fn, &alive_data);
344
345 ret = iwl_trans_start_fw(priv->trans, fw, false);
346 if (ret) {
347 priv->cur_ucode = old_type;
348 iwl_remove_notification(&priv->notif_wait, &alive_wait);
349 return ret;
350 }
351
352 /*
353 * Some things may run in the background now, but we
354 * just wait for the ALIVE notification here.
355 */
356 ret = iwl_wait_notification(&priv->notif_wait, &alive_wait,
357 UCODE_ALIVE_TIMEOUT);
358 if (ret) {
359 priv->cur_ucode = old_type;
360 return ret;
361 }
362
363 if (!alive_data.valid) {
364 IWL_ERR(priv, "Loaded ucode is not valid!\n");
365 priv->cur_ucode = old_type;
366 return -EIO;
367 }
368
369 priv->ucode_loaded = true;
370
371 if (ucode_type != IWL_UCODE_WOWLAN) {
372 /* delay a bit to give rfkill time to run */
373 msleep(5);
374 }
375
376 ret = iwl_alive_notify(priv);
377 if (ret) {
378 IWL_WARN(priv,
379 "Could not complete ALIVE transition: %d\n", ret);
380 priv->cur_ucode = old_type;
381 return ret;
382 }
383
384 return 0;
385}
386
387static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait,
388 struct iwl_rx_packet *pkt, void *data)
389{
390 struct iwl_priv *priv = data;
391 struct iwl_calib_hdr *hdr;
392
393 if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) {
394 WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION);
395 return true;
396 }
397
398 hdr = (struct iwl_calib_hdr *)pkt->data;
399
400 if (iwl_calib_set(priv, hdr, iwl_rx_packet_payload_len(pkt)))
401 IWL_ERR(priv, "Failed to record calibration data %d\n",
402 hdr->op_code);
403
404 return false;
405}
406
407int iwl_run_init_ucode(struct iwl_priv *priv)
408{
409 struct iwl_notification_wait calib_wait;
410 static const u16 calib_complete[] = {
411 CALIBRATION_RES_NOTIFICATION,
412 CALIBRATION_COMPLETE_NOTIFICATION
413 };
414 int ret;
415
416 lockdep_assert_held(&priv->mutex);
417
418 /* No init ucode required? Curious, but maybe ok */
419 if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
420 return 0;
421
422 iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
423 calib_complete, ARRAY_SIZE(calib_complete),
424 iwlagn_wait_calib, priv);
425
426 /* Will also start the device */
427 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
428 if (ret)
429 goto error;
430
431 ret = iwl_init_alive_start(priv);
432 if (ret)
433 goto error;
434
435 /*
436 * Some things may run in the background now, but we
437 * just wait for the calibration complete notification.
438 */
439 ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
440 UCODE_CALIB_TIMEOUT);
441
442 goto out;
443
444 error:
445 iwl_remove_notification(&priv->notif_wait, &calib_wait);
446 out:
447 /* Whatever happened, stop the device */
448 iwl_trans_stop_device(priv->trans);
449 priv->ucode_loaded = false;
450
451 return ret;
452}