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
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
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43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
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47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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
);