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 - 2014 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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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.
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28 * Intel Linux Wireless <linuxwifi@intel.com>
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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 9
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_group_papd[IWL_NUM_PAPD_CH_GROUPS];
96 struct iwl_phy_db_entry calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS];
98 struct iwl_trans *trans;
101 enum iwl_phy_db_section_type {
103 IWL_PHY_DB_CALIB_NCH,
105 IWL_PHY_DB_CALIB_CHG_PAPD,
106 IWL_PHY_DB_CALIB_CHG_TXP,
110 #define PHY_DB_CMD 0x6c /* TEMP API - The actual is 0x8c */
113 * phy db - configure operational ucode
115 struct iwl_phy_db_cmd {
121 /* for parsing of tx power channel group data that comes from the firmware*/
122 struct iwl_phy_db_chg_txp {
124 __le16 max_channel_idx;
128 * phy db - Receive phy db chunk after calibrations
130 struct iwl_calib_res_notif_phy_db {
136 struct iwl_phy_db *iwl_phy_db_init(struct iwl_trans *trans)
138 struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
144 phy_db->trans = trans;
146 /* TODO: add default values of the phy db. */
149 IWL_EXPORT_SYMBOL(iwl_phy_db_init);
152 * get phy db section: returns a pointer to a phy db section specified by
153 * type and channel group id.
155 static struct iwl_phy_db_entry *
156 iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
157 enum iwl_phy_db_section_type type,
160 if (!phy_db || type >= IWL_PHY_DB_MAX)
166 case IWL_PHY_DB_CALIB_NCH:
167 return &phy_db->calib_nch;
168 case IWL_PHY_DB_CALIB_CHG_PAPD:
169 if (chg_id >= IWL_NUM_PAPD_CH_GROUPS)
171 return &phy_db->calib_ch_group_papd[chg_id];
172 case IWL_PHY_DB_CALIB_CHG_TXP:
173 if (chg_id >= IWL_NUM_TXP_CH_GROUPS)
175 return &phy_db->calib_ch_group_txp[chg_id];
182 static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
183 enum iwl_phy_db_section_type type,
186 struct iwl_phy_db_entry *entry =
187 iwl_phy_db_get_section(phy_db, type, chg_id);
196 void iwl_phy_db_free(struct iwl_phy_db *phy_db)
203 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
204 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
205 for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++)
206 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
207 for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++)
208 iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);
212 IWL_EXPORT_SYMBOL(iwl_phy_db_free);
214 int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt,
217 struct iwl_calib_res_notif_phy_db *phy_db_notif =
218 (struct iwl_calib_res_notif_phy_db *)pkt->data;
219 enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type);
220 u16 size = le16_to_cpu(phy_db_notif->length);
221 struct iwl_phy_db_entry *entry;
227 if (type == IWL_PHY_DB_CALIB_CHG_PAPD ||
228 type == IWL_PHY_DB_CALIB_CHG_TXP)
229 chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
231 entry = iwl_phy_db_get_section(phy_db, type, chg_id);
236 entry->data = kmemdup(phy_db_notif->data, size, alloc_ctx);
244 IWL_DEBUG_INFO(phy_db->trans,
245 "%s(%d): [PHYDB]SET: Type %d , Size: %d\n",
246 __func__, __LINE__, type, size);
250 IWL_EXPORT_SYMBOL(iwl_phy_db_set_section);
252 static int is_valid_channel(u16 ch_id)
255 (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) ||
256 (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) ||
257 (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1))
262 static u8 ch_id_to_ch_index(u16 ch_id)
264 if (WARN_ON(!is_valid_channel(ch_id)))
270 return (ch_id + 20) / 4;
272 return (ch_id - 12) / 4;
273 return (ch_id - 13) / 4;
277 static u16 channel_id_to_papd(u16 ch_id)
279 if (WARN_ON(!is_valid_channel(ch_id)))
282 if (1 <= ch_id && ch_id <= 14)
284 if (36 <= ch_id && ch_id <= 64)
286 if (100 <= ch_id && ch_id <= 140)
291 static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
293 struct iwl_phy_db_chg_txp *txp_chg;
295 u8 ch_index = ch_id_to_ch_index(ch_id);
296 if (ch_index == 0xff)
299 for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) {
300 txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
304 * Looking for the first channel group that its max channel is
305 * higher then wanted channel.
307 if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
313 int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
314 u32 type, u8 **data, u16 *size, u16 ch_id)
316 struct iwl_phy_db_entry *entry;
322 /* find wanted channel group */
323 if (type == IWL_PHY_DB_CALIB_CHG_PAPD)
324 ch_group_id = channel_id_to_papd(ch_id);
325 else if (type == IWL_PHY_DB_CALIB_CHG_TXP)
326 ch_group_id = channel_id_to_txp(phy_db, ch_id);
328 entry = iwl_phy_db_get_section(phy_db, type, ch_group_id);
335 IWL_DEBUG_INFO(phy_db->trans,
336 "%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
337 __func__, __LINE__, type, *size);
342 static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type,
343 u16 length, void *data)
345 struct iwl_phy_db_cmd phy_db_cmd;
346 struct iwl_host_cmd cmd = {
350 IWL_DEBUG_INFO(phy_db->trans,
351 "Sending PHY-DB hcmd of type %d, of length %d\n",
354 /* Set phy db cmd variables */
355 phy_db_cmd.type = cpu_to_le16(type);
356 phy_db_cmd.length = cpu_to_le16(length);
358 /* Set hcmd variables */
359 cmd.data[0] = &phy_db_cmd;
360 cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
363 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
365 return iwl_trans_send_cmd(phy_db->trans, &cmd);
368 static int iwl_phy_db_send_all_channel_groups(
369 struct iwl_phy_db *phy_db,
370 enum iwl_phy_db_section_type type,
375 struct iwl_phy_db_entry *entry;
377 /* Send all the channel specific groups to operational fw */
378 for (i = 0; i < max_ch_groups; i++) {
379 entry = iwl_phy_db_get_section(phy_db,
388 /* Send the requested PHY DB section */
389 err = iwl_send_phy_db_cmd(phy_db,
394 IWL_ERR(phy_db->trans,
395 "Can't SEND phy_db section %d (%d), err %d\n",
400 IWL_DEBUG_INFO(phy_db->trans,
401 "Sent PHY_DB HCMD, type = %d num = %d\n",
408 int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
414 IWL_DEBUG_INFO(phy_db->trans,
415 "Sending phy db data and configuration to runtime image\n");
417 /* Send PHY DB CFG section */
418 err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
421 IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
425 err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
427 IWL_ERR(phy_db->trans,
428 "Cannot send HCMD of Phy DB cfg section\n");
432 err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
435 IWL_ERR(phy_db->trans,
436 "Cannot get Phy DB non specific channel section\n");
440 err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
442 IWL_ERR(phy_db->trans,
443 "Cannot send HCMD of Phy DB non specific channel section\n");
447 /* Send all the TXP channel specific data */
448 err = iwl_phy_db_send_all_channel_groups(phy_db,
449 IWL_PHY_DB_CALIB_CHG_PAPD,
450 IWL_NUM_PAPD_CH_GROUPS);
452 IWL_ERR(phy_db->trans,
453 "Cannot send channel specific PAPD groups\n");
457 /* Send all the TXP channel specific data */
458 err = iwl_phy_db_send_all_channel_groups(phy_db,
459 IWL_PHY_DB_CALIB_CHG_TXP,
460 IWL_NUM_TXP_CH_GROUPS);
462 IWL_ERR(phy_db->trans,
463 "Cannot send channel specific TX power groups\n");
467 IWL_DEBUG_INFO(phy_db->trans,
468 "Finished sending phy db non channel data\n");
471 IWL_EXPORT_SYMBOL(iwl_send_phy_db_data);