1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
34 * All rights reserved.
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37 * modification, are permitted provided that the following conditions
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62 *****************************************************************************/
64 #include <linux/slab.h>
65 #include <linux/string.h>
66 #include <linux/export.h>
68 #include "iwl-phy-db.h"
69 #include "iwl-debug.h"
70 #include "iwl-op-mode.h"
71 #include "iwl-trans.h"
73 #define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */
74 #define IWL_NUM_PAPD_CH_GROUPS 4
75 #define IWL_NUM_TXP_CH_GROUPS 9
77 struct iwl_phy_db_entry {
83 * struct iwl_phy_db - stores phy configuration and calibration data.
85 * @cfg: phy configuration.
86 * @calib_nch: non channel specific calibration data.
87 * @calib_ch: channel specific calibration data.
88 * @calib_ch_group_papd: calibration data related to papd channel group.
89 * @calib_ch_group_txp: calibration data related to tx power chanel group.
92 struct iwl_phy_db_entry cfg;
93 struct iwl_phy_db_entry calib_nch;
94 struct iwl_phy_db_entry calib_ch;
95 struct iwl_phy_db_entry calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS];
96 struct iwl_phy_db_entry calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS];
101 struct iwl_trans *trans;
104 enum iwl_phy_db_section_type {
106 IWL_PHY_DB_CALIB_NCH,
108 IWL_PHY_DB_CALIB_CHG_PAPD,
109 IWL_PHY_DB_CALIB_CHG_TXP,
113 #define PHY_DB_CMD 0x6c /* TEMP API - The actual is 0x8c */
116 * phy db - configure operational ucode
118 struct iwl_phy_db_cmd {
124 /* for parsing of tx power channel group data that comes from the firmware*/
125 struct iwl_phy_db_chg_txp {
127 __le16 max_channel_idx;
131 * phy db - Receieve phy db chunk after calibrations
133 struct iwl_calib_res_notif_phy_db {
139 struct iwl_phy_db *iwl_phy_db_init(struct iwl_trans *trans)
141 struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
147 phy_db->trans = trans;
149 /* TODO: add default values of the phy db. */
152 EXPORT_SYMBOL(iwl_phy_db_init);
155 * get phy db section: returns a pointer to a phy db section specified by
156 * type and channel group id.
158 static struct iwl_phy_db_entry *
159 iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
160 enum iwl_phy_db_section_type type,
163 if (!phy_db || type >= IWL_PHY_DB_MAX)
169 case IWL_PHY_DB_CALIB_NCH:
170 return &phy_db->calib_nch;
171 case IWL_PHY_DB_CALIB_CH:
172 return &phy_db->calib_ch;
173 case IWL_PHY_DB_CALIB_CHG_PAPD:
174 if (chg_id >= IWL_NUM_PAPD_CH_GROUPS)
176 return &phy_db->calib_ch_group_papd[chg_id];
177 case IWL_PHY_DB_CALIB_CHG_TXP:
178 if (chg_id >= IWL_NUM_TXP_CH_GROUPS)
180 return &phy_db->calib_ch_group_txp[chg_id];
187 static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
188 enum iwl_phy_db_section_type type,
191 struct iwl_phy_db_entry *entry =
192 iwl_phy_db_get_section(phy_db, type, chg_id);
201 void iwl_phy_db_free(struct iwl_phy_db *phy_db)
208 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
209 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
210 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CH, 0);
211 for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++)
212 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
213 for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++)
214 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);
218 EXPORT_SYMBOL(iwl_phy_db_free);
220 int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt,
223 struct iwl_calib_res_notif_phy_db *phy_db_notif =
224 (struct iwl_calib_res_notif_phy_db *)pkt->data;
225 enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type);
226 u16 size = le16_to_cpu(phy_db_notif->length);
227 struct iwl_phy_db_entry *entry;
233 if (type == IWL_PHY_DB_CALIB_CHG_PAPD ||
234 type == IWL_PHY_DB_CALIB_CHG_TXP)
235 chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
237 entry = iwl_phy_db_get_section(phy_db, type, chg_id);
242 entry->data = kmemdup(phy_db_notif->data, size, alloc_ctx);
250 if (type == IWL_PHY_DB_CALIB_CH) {
251 phy_db->channel_num =
252 le32_to_cpup((__le32 *)phy_db_notif->data);
253 phy_db->channel_size =
254 (size - CHANNEL_NUM_SIZE) / phy_db->channel_num;
257 IWL_DEBUG_INFO(phy_db->trans,
258 "%s(%d): [PHYDB]SET: Type %d , Size: %d\n",
259 __func__, __LINE__, type, size);
263 EXPORT_SYMBOL(iwl_phy_db_set_section);
265 static int is_valid_channel(u16 ch_id)
268 (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) ||
269 (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) ||
270 (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1))
275 static u8 ch_id_to_ch_index(u16 ch_id)
277 if (WARN_ON(!is_valid_channel(ch_id)))
283 return (ch_id + 20) / 4;
285 return (ch_id - 12) / 4;
286 return (ch_id - 13) / 4;
290 static u16 channel_id_to_papd(u16 ch_id)
292 if (WARN_ON(!is_valid_channel(ch_id)))
295 if (1 <= ch_id && ch_id <= 14)
297 if (36 <= ch_id && ch_id <= 64)
299 if (100 <= ch_id && ch_id <= 140)
304 static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
306 struct iwl_phy_db_chg_txp *txp_chg;
308 u8 ch_index = ch_id_to_ch_index(ch_id);
309 if (ch_index == 0xff)
312 for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) {
313 txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
317 * Looking for the first channel group that its max channel is
318 * higher then wanted channel.
320 if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
326 int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
327 u32 type, u8 **data, u16 *size, u16 ch_id)
329 struct iwl_phy_db_entry *entry;
338 /* find wanted channel group */
339 if (type == IWL_PHY_DB_CALIB_CHG_PAPD)
340 ch_group_id = channel_id_to_papd(ch_id);
341 else if (type == IWL_PHY_DB_CALIB_CHG_TXP)
342 ch_group_id = channel_id_to_txp(phy_db, ch_id);
344 entry = iwl_phy_db_get_section(phy_db, type, ch_group_id);
348 if (type == IWL_PHY_DB_CALIB_CH) {
349 index = ch_id_to_ch_index(ch_id);
350 channel_num = phy_db->channel_num;
351 channel_size = phy_db->channel_size;
352 if (index >= channel_num) {
353 IWL_ERR(phy_db->trans, "Wrong channel number %d\n",
357 *data = entry->data + CHANNEL_NUM_SIZE + index * channel_size;
358 *size = channel_size;
364 IWL_DEBUG_INFO(phy_db->trans,
365 "%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
366 __func__, __LINE__, type, *size);
371 static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type,
372 u16 length, void *data)
374 struct iwl_phy_db_cmd phy_db_cmd;
375 struct iwl_host_cmd cmd = {
380 IWL_DEBUG_INFO(phy_db->trans,
381 "Sending PHY-DB hcmd of type %d, of length %d\n",
384 /* Set phy db cmd variables */
385 phy_db_cmd.type = cpu_to_le16(type);
386 phy_db_cmd.length = cpu_to_le16(length);
388 /* Set hcmd variables */
389 cmd.data[0] = &phy_db_cmd;
390 cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
393 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
395 return iwl_trans_send_cmd(phy_db->trans, &cmd);
398 static int iwl_phy_db_send_all_channel_groups(
399 struct iwl_phy_db *phy_db,
400 enum iwl_phy_db_section_type type,
405 struct iwl_phy_db_entry *entry;
407 /* Send all the channel specific groups to operational fw */
408 for (i = 0; i < max_ch_groups; i++) {
409 entry = iwl_phy_db_get_section(phy_db,
415 /* Send the requested PHY DB section */
416 err = iwl_send_phy_db_cmd(phy_db,
421 IWL_ERR(phy_db->trans,
422 "Can't SEND phy_db section %d (%d), err %d",
427 IWL_DEBUG_INFO(phy_db->trans,
428 "Sent PHY_DB HCMD, type = %d num = %d",
435 int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
441 IWL_DEBUG_INFO(phy_db->trans,
442 "Sending phy db data and configuration to runtime image\n");
444 /* Send PHY DB CFG section */
445 err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
448 IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
452 err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
454 IWL_ERR(phy_db->trans,
455 "Cannot send HCMD of Phy DB cfg section\n");
459 err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
462 IWL_ERR(phy_db->trans,
463 "Cannot get Phy DB non specific channel section\n");
467 err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
469 IWL_ERR(phy_db->trans,
470 "Cannot send HCMD of Phy DB non specific channel section\n");
474 /* Send all the TXP channel specific data */
475 err = iwl_phy_db_send_all_channel_groups(phy_db,
476 IWL_PHY_DB_CALIB_CHG_PAPD,
477 IWL_NUM_PAPD_CH_GROUPS);
479 IWL_ERR(phy_db->trans,
480 "Cannot send channel specific PAPD groups");
484 /* Send all the TXP channel specific data */
485 err = iwl_phy_db_send_all_channel_groups(phy_db,
486 IWL_PHY_DB_CALIB_CHG_TXP,
487 IWL_NUM_TXP_CH_GROUPS);
489 IWL_ERR(phy_db->trans,
490 "Cannot send channel specific TX power groups");
494 IWL_DEBUG_INFO(phy_db->trans,
495 "Finished sending phy db non channel data\n");
498 EXPORT_SYMBOL(iwl_send_phy_db_data);