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
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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 COPYING.
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.
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62 *****************************************************************************/
64 #include <linux/slab.h>
65 #include <linux/string.h>
66 #include <linux/export.h>
69 #include "iwl-phy-db.h"
70 #include "iwl-debug.h"
71 #include "iwl-op-mode.h"
72 #include "iwl-trans.h"
74 #define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */
75 #define IWL_NUM_PAPD_CH_GROUPS 4
76 #define IWL_NUM_TXP_CH_GROUPS 9
78 struct iwl_phy_db_entry {
84 * struct iwl_phy_db - stores phy configuration and calibration data.
86 * @cfg: phy configuration.
87 * @calib_nch: non channel specific calibration data.
88 * @calib_ch: channel specific calibration data.
89 * @calib_ch_group_papd: calibration data related to papd channel group.
90 * @calib_ch_group_txp: calibration data related to tx power chanel group.
93 struct iwl_phy_db_entry cfg;
94 struct iwl_phy_db_entry calib_nch;
95 struct iwl_phy_db_entry calib_ch;
96 struct iwl_phy_db_entry calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS];
97 struct iwl_phy_db_entry calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS];
102 struct iwl_trans *trans;
105 enum iwl_phy_db_section_type {
107 IWL_PHY_DB_CALIB_NCH,
109 IWL_PHY_DB_CALIB_CHG_PAPD,
110 IWL_PHY_DB_CALIB_CHG_TXP,
114 #define PHY_DB_CMD 0x6c /* TEMP API - The actual is 0x8c */
117 * phy db - configure operational ucode
119 struct iwl_phy_db_cmd {
125 /* for parsing of tx power channel group data that comes from the firmware*/
126 struct iwl_phy_db_chg_txp {
128 __le16 max_channel_idx;
132 * phy db - Receieve phy db chunk after calibrations
134 struct iwl_calib_res_notif_phy_db {
140 struct iwl_phy_db *iwl_phy_db_init(struct iwl_trans *trans)
142 struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
148 phy_db->trans = trans;
150 /* TODO: add default values of the phy db. */
153 IWL_EXPORT_SYMBOL(iwl_phy_db_init);
156 * get phy db section: returns a pointer to a phy db section specified by
157 * type and channel group id.
159 static struct iwl_phy_db_entry *
160 iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
161 enum iwl_phy_db_section_type type,
164 if (!phy_db || type >= IWL_PHY_DB_MAX)
170 case IWL_PHY_DB_CALIB_NCH:
171 return &phy_db->calib_nch;
172 case IWL_PHY_DB_CALIB_CH:
173 return &phy_db->calib_ch;
174 case IWL_PHY_DB_CALIB_CHG_PAPD:
175 if (chg_id >= IWL_NUM_PAPD_CH_GROUPS)
177 return &phy_db->calib_ch_group_papd[chg_id];
178 case IWL_PHY_DB_CALIB_CHG_TXP:
179 if (chg_id >= IWL_NUM_TXP_CH_GROUPS)
181 return &phy_db->calib_ch_group_txp[chg_id];
188 static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
189 enum iwl_phy_db_section_type type,
192 struct iwl_phy_db_entry *entry =
193 iwl_phy_db_get_section(phy_db, type, chg_id);
202 void iwl_phy_db_free(struct iwl_phy_db *phy_db)
209 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
210 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
211 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CH, 0);
212 for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++)
213 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
214 for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++)
215 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);
219 IWL_EXPORT_SYMBOL(iwl_phy_db_free);
221 int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt,
224 struct iwl_calib_res_notif_phy_db *phy_db_notif =
225 (struct iwl_calib_res_notif_phy_db *)pkt->data;
226 enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type);
227 u16 size = le16_to_cpu(phy_db_notif->length);
228 struct iwl_phy_db_entry *entry;
234 if (type == IWL_PHY_DB_CALIB_CHG_PAPD ||
235 type == IWL_PHY_DB_CALIB_CHG_TXP)
236 chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
238 entry = iwl_phy_db_get_section(phy_db, type, chg_id);
243 entry->data = kmemdup(phy_db_notif->data, size, alloc_ctx);
251 if (type == IWL_PHY_DB_CALIB_CH) {
252 phy_db->channel_num =
253 le32_to_cpup((__le32 *)phy_db_notif->data);
254 phy_db->channel_size =
255 (size - CHANNEL_NUM_SIZE) / phy_db->channel_num;
258 IWL_DEBUG_INFO(phy_db->trans,
259 "%s(%d): [PHYDB]SET: Type %d , Size: %d\n",
260 __func__, __LINE__, type, size);
264 IWL_EXPORT_SYMBOL(iwl_phy_db_set_section);
266 static int is_valid_channel(u16 ch_id)
269 (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) ||
270 (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) ||
271 (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1))
276 static u8 ch_id_to_ch_index(u16 ch_id)
278 if (WARN_ON(!is_valid_channel(ch_id)))
284 return (ch_id + 20) / 4;
286 return (ch_id - 12) / 4;
287 return (ch_id - 13) / 4;
291 static u16 channel_id_to_papd(u16 ch_id)
293 if (WARN_ON(!is_valid_channel(ch_id)))
296 if (1 <= ch_id && ch_id <= 14)
298 if (36 <= ch_id && ch_id <= 64)
300 if (100 <= ch_id && ch_id <= 140)
305 static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
307 struct iwl_phy_db_chg_txp *txp_chg;
309 u8 ch_index = ch_id_to_ch_index(ch_id);
310 if (ch_index == 0xff)
313 for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) {
314 txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
318 * Looking for the first channel group that its max channel is
319 * higher then wanted channel.
321 if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
327 int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
328 u32 type, u8 **data, u16 *size, u16 ch_id)
330 struct iwl_phy_db_entry *entry;
339 /* find wanted channel group */
340 if (type == IWL_PHY_DB_CALIB_CHG_PAPD)
341 ch_group_id = channel_id_to_papd(ch_id);
342 else if (type == IWL_PHY_DB_CALIB_CHG_TXP)
343 ch_group_id = channel_id_to_txp(phy_db, ch_id);
345 entry = iwl_phy_db_get_section(phy_db, type, ch_group_id);
349 if (type == IWL_PHY_DB_CALIB_CH) {
350 index = ch_id_to_ch_index(ch_id);
351 channel_num = phy_db->channel_num;
352 channel_size = phy_db->channel_size;
353 if (index >= channel_num) {
354 IWL_ERR(phy_db->trans, "Wrong channel number %d\n",
358 *data = entry->data + CHANNEL_NUM_SIZE + index * channel_size;
359 *size = channel_size;
365 IWL_DEBUG_INFO(phy_db->trans,
366 "%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
367 __func__, __LINE__, type, *size);
372 static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type,
373 u16 length, void *data)
375 struct iwl_phy_db_cmd phy_db_cmd;
376 struct iwl_host_cmd cmd = {
381 IWL_DEBUG_INFO(phy_db->trans,
382 "Sending PHY-DB hcmd of type %d, of length %d\n",
385 /* Set phy db cmd variables */
386 phy_db_cmd.type = cpu_to_le16(type);
387 phy_db_cmd.length = cpu_to_le16(length);
389 /* Set hcmd variables */
390 cmd.data[0] = &phy_db_cmd;
391 cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
394 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
396 return iwl_trans_send_cmd(phy_db->trans, &cmd);
399 static int iwl_phy_db_send_all_channel_groups(
400 struct iwl_phy_db *phy_db,
401 enum iwl_phy_db_section_type type,
406 struct iwl_phy_db_entry *entry;
408 /* Send all the channel specific groups to operational fw */
409 for (i = 0; i < max_ch_groups; i++) {
410 entry = iwl_phy_db_get_section(phy_db,
416 /* Send the requested PHY DB section */
417 err = iwl_send_phy_db_cmd(phy_db,
422 IWL_ERR(phy_db->trans,
423 "Can't SEND phy_db section %d (%d), err %d",
428 IWL_DEBUG_INFO(phy_db->trans,
429 "Sent PHY_DB HCMD, type = %d num = %d",
436 int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
442 IWL_DEBUG_INFO(phy_db->trans,
443 "Sending phy db data and configuration to runtime image\n");
445 /* Send PHY DB CFG section */
446 err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
449 IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
453 err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
455 IWL_ERR(phy_db->trans,
456 "Cannot send HCMD of Phy DB cfg section\n");
460 err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
463 IWL_ERR(phy_db->trans,
464 "Cannot get Phy DB non specific channel section\n");
468 err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
470 IWL_ERR(phy_db->trans,
471 "Cannot send HCMD of Phy DB non specific channel section\n");
475 /* Send all the TXP channel specific data */
476 err = iwl_phy_db_send_all_channel_groups(phy_db,
477 IWL_PHY_DB_CALIB_CHG_PAPD,
478 IWL_NUM_PAPD_CH_GROUPS);
480 IWL_ERR(phy_db->trans,
481 "Cannot send channel specific PAPD groups");
485 /* Send all the TXP channel specific data */
486 err = iwl_phy_db_send_all_channel_groups(phy_db,
487 IWL_PHY_DB_CALIB_CHG_TXP,
488 IWL_NUM_TXP_CH_GROUPS);
490 IWL_ERR(phy_db->trans,
491 "Cannot send channel specific TX power groups");
495 IWL_DEBUG_INFO(phy_db->trans,
496 "Finished sending phy db non channel data\n");
499 IWL_EXPORT_SYMBOL(iwl_send_phy_db_data);