[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-phy-db.c

/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <ilw@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/

#include <linux/slab.h>
#include <linux/string.h>
#include <linux/export.h>

#include "iwl-drv.h"
#include "iwl-phy-db.h"
#include "iwl-debug.h"
#include "iwl-op-mode.h"
#include "iwl-trans.h"

#define CHANNEL_NUM_SIZE	4	/* num of channels in calib_ch size */
#define IWL_NUM_PAPD_CH_GROUPS	7
#define IWL_NUM_TXP_CH_GROUPS	9

struct iwl_phy_db_entry {
	u16	size;
	u8	*data;
};

/**
 * struct iwl_phy_db - stores phy configuration and calibration data.
 *
 * @cfg: phy configuration.
 * @calib_nch: non channel specific calibration data.
 * @calib_ch: channel specific calibration data.
 * @calib_ch_group_papd: calibration data related to papd channel group.
 * @calib_ch_group_txp: calibration data related to tx power chanel group.
 */
struct iwl_phy_db {
	struct iwl_phy_db_entry	cfg;
	struct iwl_phy_db_entry	calib_nch;
	struct iwl_phy_db_entry	calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS];
	struct iwl_phy_db_entry	calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS];

	struct iwl_trans *trans;
};

enum iwl_phy_db_section_type {
	IWL_PHY_DB_CFG = 1,
	IWL_PHY_DB_CALIB_NCH,
	IWL_PHY_DB_UNUSED,
	IWL_PHY_DB_CALIB_CHG_PAPD,
	IWL_PHY_DB_CALIB_CHG_TXP,
	IWL_PHY_DB_MAX
};

#define PHY_DB_CMD 0x6c /* TEMP API - The actual is 0x8c */

/*
 * phy db - configure operational ucode
 */
struct iwl_phy_db_cmd {
	__le16 type;
	__le16 length;
	u8 data[];
} __packed;

/* for parsing of tx power channel group data that comes from the firmware*/
struct iwl_phy_db_chg_txp {
	__le32 space;
	__le16 max_channel_idx;
} __packed;

/*
 * phy db - Receieve phy db chunk after calibrations
 */
struct iwl_calib_res_notif_phy_db {
	__le16 type;
	__le16 length;
	u8 data[];
} __packed;

struct iwl_phy_db *iwl_phy_db_init(struct iwl_trans *trans)
{
	struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
					    GFP_KERNEL);

	if (!phy_db)
		return phy_db;

	phy_db->trans = trans;

	/* TODO: add default values of the phy db. */
	return phy_db;
}
IWL_EXPORT_SYMBOL(iwl_phy_db_init);

/*
 * get phy db section: returns a pointer to a phy db section specified by
 * type and channel group id.
 */
static struct iwl_phy_db_entry *
iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
		       enum iwl_phy_db_section_type type,
		       u16 chg_id)
{
	if (!phy_db || type >= IWL_PHY_DB_MAX)
		return NULL;

	switch (type) {
	case IWL_PHY_DB_CFG:
		return &phy_db->cfg;
	case IWL_PHY_DB_CALIB_NCH:
		return &phy_db->calib_nch;
	case IWL_PHY_DB_CALIB_CHG_PAPD:
		if (chg_id >= IWL_NUM_PAPD_CH_GROUPS)
			return NULL;
		return &phy_db->calib_ch_group_papd[chg_id];
	case IWL_PHY_DB_CALIB_CHG_TXP:
		if (chg_id >= IWL_NUM_TXP_CH_GROUPS)
			return NULL;
		return &phy_db->calib_ch_group_txp[chg_id];
	default:
		return NULL;
	}
	return NULL;
}

static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
				    enum iwl_phy_db_section_type type,
				    u16 chg_id)
{
	struct iwl_phy_db_entry *entry =
				iwl_phy_db_get_section(phy_db, type, chg_id);
	if (!entry)
		return;

	kfree(entry->data);
	entry->data = NULL;
	entry->size = 0;
}

void iwl_phy_db_free(struct iwl_phy_db *phy_db)
{
	int i;

	if (!phy_db)
		return;

	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
	for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++)
		iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
	for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++)
		iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);

	kfree(phy_db);
}
IWL_EXPORT_SYMBOL(iwl_phy_db_free);

int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt,
			   gfp_t alloc_ctx)
{
	struct iwl_calib_res_notif_phy_db *phy_db_notif =
			(struct iwl_calib_res_notif_phy_db *)pkt->data;
	enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type);
	u16 size  = le16_to_cpu(phy_db_notif->length);
	struct iwl_phy_db_entry *entry;
	u16 chg_id = 0;

	if (!phy_db)
		return -EINVAL;

	if (type == IWL_PHY_DB_CALIB_CHG_PAPD ||
	    type == IWL_PHY_DB_CALIB_CHG_TXP)
		chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);

	entry = iwl_phy_db_get_section(phy_db, type, chg_id);
	if (!entry)
		return -EINVAL;

	kfree(entry->data);
	entry->data = kmemdup(phy_db_notif->data, size, alloc_ctx);
	if (!entry->data) {
		entry->size = 0;
		return -ENOMEM;
	}

	entry->size = size;

	IWL_DEBUG_INFO(phy_db->trans,
		       "%s(%d): [PHYDB]SET: Type %d , Size: %d\n",
		       __func__, __LINE__, type, size);

	return 0;
}
IWL_EXPORT_SYMBOL(iwl_phy_db_set_section);

static int is_valid_channel(u16 ch_id)
{
	if (ch_id <= 14 ||
	    (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) ||
	    (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) ||
	    (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1))
		return 1;
	return 0;
}

static u8 ch_id_to_ch_index(u16 ch_id)
{
	if (WARN_ON(!is_valid_channel(ch_id)))
		return 0xff;

	if (ch_id <= 14)
		return ch_id - 1;
	if (ch_id <= 64)
		return (ch_id + 20) / 4;
	if (ch_id <= 140)
		return (ch_id - 12) / 4;
	return (ch_id - 13) / 4;
}


static u16 channel_id_to_papd(u16 ch_id)
{
	if (WARN_ON(!is_valid_channel(ch_id)))
		return 0xff;

	if (1 <= ch_id && ch_id <= 14)
		return 0;
	if (36 <= ch_id && ch_id <= 64)
		return 1;
	if (100 <= ch_id && ch_id <= 140)
		return 2;
	return 3;
}

static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
{
	struct iwl_phy_db_chg_txp *txp_chg;
	int i;
	u8 ch_index = ch_id_to_ch_index(ch_id);
	if (ch_index == 0xff)
		return 0xff;

	for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) {
		txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
		if (!txp_chg)
			return 0xff;
		/*
		 * Looking for the first channel group that its max channel is
		 * higher then wanted channel.
		 */
		if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
			return i;
	}
	return 0xff;
}
static
int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
				u32 type, u8 **data, u16 *size, u16 ch_id)
{
	struct iwl_phy_db_entry *entry;
	u16 ch_group_id = 0;

	if (!phy_db)
		return -EINVAL;

	/* find wanted channel group */
	if (type == IWL_PHY_DB_CALIB_CHG_PAPD)
		ch_group_id = channel_id_to_papd(ch_id);
	else if (type == IWL_PHY_DB_CALIB_CHG_TXP)
		ch_group_id = channel_id_to_txp(phy_db, ch_id);

	entry = iwl_phy_db_get_section(phy_db, type, ch_group_id);
	if (!entry)
		return -EINVAL;

	*data = entry->data;
	*size = entry->size;

	IWL_DEBUG_INFO(phy_db->trans,
		       "%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
		       __func__, __LINE__, type, *size);

	return 0;
}

static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type,
			       u16 length, void *data)
{
	struct iwl_phy_db_cmd phy_db_cmd;
	struct iwl_host_cmd cmd = {
		.id = PHY_DB_CMD,
		.flags = CMD_SYNC,
	};

	IWL_DEBUG_INFO(phy_db->trans,
		       "Sending PHY-DB hcmd of type %d, of length %d\n",
		       type, length);

	/* Set phy db cmd variables */
	phy_db_cmd.type = cpu_to_le16(type);
	phy_db_cmd.length = cpu_to_le16(length);

	/* Set hcmd variables */
	cmd.data[0] = &phy_db_cmd;
	cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
	cmd.data[1] = data;
	cmd.len[1] = length;
	cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;

	return iwl_trans_send_cmd(phy_db->trans, &cmd);
}

static int iwl_phy_db_send_all_channel_groups(
					struct iwl_phy_db *phy_db,
					enum iwl_phy_db_section_type type,
					u8 max_ch_groups)
{
	u16 i;
	int err;
	struct iwl_phy_db_entry *entry;

	/* Send all the  channel specific groups to operational fw */
	for (i = 0; i < max_ch_groups; i++) {
		entry = iwl_phy_db_get_section(phy_db,
					       type,
					       i);
		if (!entry)
			return -EINVAL;

		if (!entry->size)
			continue;

		/* Send the requested PHY DB section */
		err = iwl_send_phy_db_cmd(phy_db,
					  type,
					  entry->size,
					  entry->data);
		if (err) {
			IWL_ERR(phy_db->trans,
				"Can't SEND phy_db section %d (%d), err %d\n",
				type, i, err);
			return err;
		}

		IWL_DEBUG_INFO(phy_db->trans,
			       "Sent PHY_DB HCMD, type = %d num = %d\n",
			       type, i);
	}

	return 0;
}

int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
{
	u8 *data = NULL;
	u16 size = 0;
	int err;

	IWL_DEBUG_INFO(phy_db->trans,
		       "Sending phy db data and configuration to runtime image\n");

	/* Send PHY DB CFG section */
	err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
					  &data, &size, 0);
	if (err) {
		IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
		return err;
	}

	err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
	if (err) {
		IWL_ERR(phy_db->trans,
			"Cannot send HCMD of  Phy DB cfg section\n");
		return err;
	}

	err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
					  &data, &size, 0);
	if (err) {
		IWL_ERR(phy_db->trans,
			"Cannot get Phy DB non specific channel section\n");
		return err;
	}

	err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
	if (err) {
		IWL_ERR(phy_db->trans,
			"Cannot send HCMD of Phy DB non specific channel section\n");
		return err;
	}

	/* Send all the TXP channel specific data */
	err = iwl_phy_db_send_all_channel_groups(phy_db,
						 IWL_PHY_DB_CALIB_CHG_PAPD,
						 IWL_NUM_PAPD_CH_GROUPS);
	if (err) {
		IWL_ERR(phy_db->trans,
			"Cannot send channel specific PAPD groups\n");
		return err;
	}

	/* Send all the TXP channel specific data */
	err = iwl_phy_db_send_all_channel_groups(phy_db,
						 IWL_PHY_DB_CALIB_CHG_TXP,
						 IWL_NUM_TXP_CH_GROUPS);
	if (err) {
		IWL_ERR(phy_db->trans,
			"Cannot send channel specific TX power groups\n");
		return err;
	}

	IWL_DEBUG_INFO(phy_db->trans,
		       "Finished sending phy db non channel data\n");
	return 0;
}
IWL_EXPORT_SYMBOL(iwl_send_phy_db_data);
Commit	Line	Data
b1e1adfa JB	1	/******************************************************************************
	2	*
	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.
	5	*
	6	* GPL LICENSE SUMMARY
	7	*
51368bf7	8	* Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
b1e1adfa JB	9	*
	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.
	13	*
	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.
	18	*
	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,
	22	* USA
	23	*
	24	* The full GNU General Public License is included in this distribution
410dc5aa	25	* in the file called COPYING.
b1e1adfa JB	26	*
	27	* Contact Information:
	28	* Intel Linux Wireless <ilw@linux.intel.com>
	29	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	30	*
	31	* BSD LICENSE
	32	*
51368bf7	33	* Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
b1e1adfa JB	34	* All rights reserved.
	35	*
	36	* Redistribution and use in source and binary forms, with or without
	37	* modification, are permitted provided that the following conditions
	38	* are met:
	39	*
	40	* * Redistributions of source code must retain the above copyright
	41	* notice, this list of conditions and the following disclaimer.
	42	* * Redistributions in binary form must reproduce the above copyright
	43	* notice, this list of conditions and the following disclaimer in
	44	* the documentation and/or other materials provided with the
	45	* distribution.
	46	* * Neither the name Intel Corporation nor the names of its
	47	* contributors may be used to endorse or promote products derived
	48	* from this software without specific prior written permission.
	49	*
	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,
	55	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	56	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	57	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	58	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	59	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	60	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	61	*
	62	*****************************************************************************/
	63
	64	#include <linux/slab.h>
	65	#include <linux/string.h>
	66	#include <linux/export.h>
	67
48e29340	68	#include "iwl-drv.h"
b1e1adfa JB	69	#include "iwl-phy-db.h"
	70	#include "iwl-debug.h"
	71	#include "iwl-op-mode.h"
	72	#include "iwl-trans.h"
	73
	74	#define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */
3281bd4c	75	#define IWL_NUM_PAPD_CH_GROUPS 7
b1e1adfa JB	76	#define IWL_NUM_TXP_CH_GROUPS 9
	77
	78	struct iwl_phy_db_entry {
	79	u16 size;
	80	u8 *data;
	81	};
	82
	83	/**
	84	* struct iwl_phy_db - stores phy configuration and calibration data.
	85	*
	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.
	91	*/
	92	struct iwl_phy_db {
	93	struct iwl_phy_db_entry cfg;
	94	struct iwl_phy_db_entry calib_nch;
b1e1adfa JB	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];
	97
b1e1adfa JB	98	struct iwl_trans *trans;
	99	};
	100
	101	enum iwl_phy_db_section_type {
	102	IWL_PHY_DB_CFG = 1,
	103	IWL_PHY_DB_CALIB_NCH,
12dcf2c3	104	IWL_PHY_DB_UNUSED,
b1e1adfa JB	105	IWL_PHY_DB_CALIB_CHG_PAPD,
	106	IWL_PHY_DB_CALIB_CHG_TXP,
	107	IWL_PHY_DB_MAX
	108	};
	109
	110	#define PHY_DB_CMD 0x6c /* TEMP API - The actual is 0x8c */
	111
	112	/*
	113	* phy db - configure operational ucode
	114	*/
	115	struct iwl_phy_db_cmd {
	116	__le16 type;
	117	__le16 length;
	118	u8 data[];
	119	} __packed;
	120
	121	/* for parsing of tx power channel group data that comes from the firmware*/
	122	struct iwl_phy_db_chg_txp {
	123	__le32 space;
	124	__le16 max_channel_idx;
	125	} __packed;
	126
	127	/*
	128	* phy db - Receieve phy db chunk after calibrations
	129	*/
	130	struct iwl_calib_res_notif_phy_db {
	131	__le16 type;
	132	__le16 length;
	133	u8 data[];
	134	} __packed;
	135
b1e1adfa JB	136	struct iwl_phy_db iwl_phy_db_init(struct iwl_trans trans)
	137	{
	138	struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
	139	GFP_KERNEL);
	140
	141	if (!phy_db)
	142	return phy_db;
	143
	144	phy_db->trans = trans;
	145
	146	/* TODO: add default values of the phy db. */
	147	return phy_db;
	148	}
48e29340	149	IWL_EXPORT_SYMBOL(iwl_phy_db_init);
b1e1adfa JB	150
	151	/*
	152	* get phy db section: returns a pointer to a phy db section specified by
	153	* type and channel group id.
	154	*/
	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,
	158	u16 chg_id)
	159	{
	160	if (!phy_db \|\| type >= IWL_PHY_DB_MAX)
	161	return NULL;
	162
	163	switch (type) {
	164	case IWL_PHY_DB_CFG:
	165	return &phy_db->cfg;
	166	case IWL_PHY_DB_CALIB_NCH:
	167	return &phy_db->calib_nch;
b1e1adfa JB	168	case IWL_PHY_DB_CALIB_CHG_PAPD:
	169	if (chg_id >= IWL_NUM_PAPD_CH_GROUPS)
	170	return NULL;
	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)
	174	return NULL;
	175	return &phy_db->calib_ch_group_txp[chg_id];
	176	default:
	177	return NULL;
	178	}
	179	return NULL;
	180	}
	181
	182	static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
	183	enum iwl_phy_db_section_type type,
	184	u16 chg_id)
	185	{
	186	struct iwl_phy_db_entry *entry =
	187	iwl_phy_db_get_section(phy_db, type, chg_id);
	188	if (!entry)
	189	return;
	190
	191	kfree(entry->data);
	192	entry->data = NULL;
	193	entry->size = 0;
	194	}
	195
	196	void iwl_phy_db_free(struct iwl_phy_db *phy_db)
	197	{
	198	int i;
	199
	200	if (!phy_db)
	201	return;
	202
	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);
b1e1adfa JB	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);
	209
	210	kfree(phy_db);
	211	}
48e29340	212	IWL_EXPORT_SYMBOL(iwl_phy_db_free);
b1e1adfa JB	213
	214	int iwl_phy_db_set_section(struct iwl_phy_db phy_db, struct iwl_rx_packet pkt,
	215	gfp_t alloc_ctx)
	216	{
	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;
	222	u16 chg_id = 0;
	223
	224	if (!phy_db)
	225	return -EINVAL;
	226
	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);
	230
	231	entry = iwl_phy_db_get_section(phy_db, type, chg_id);
	232	if (!entry)
	233	return -EINVAL;
	234
	235	kfree(entry->data);
	236	entry->data = kmemdup(phy_db_notif->data, size, alloc_ctx);
	237	if (!entry->data) {
	238	entry->size = 0;
	239	return -ENOMEM;
	240	}
	241
	242	entry->size = size;
	243
b1e1adfa JB	244	IWL_DEBUG_INFO(phy_db->trans,
	245	"%s(%d): [PHYDB]SET: Type %d , Size: %d\n",
	246	__func__, __LINE__, type, size);
	247
	248	return 0;
	249	}
48e29340	250	IWL_EXPORT_SYMBOL(iwl_phy_db_set_section);
b1e1adfa JB	251
	252	static int is_valid_channel(u16 ch_id)
	253	{
	254	if (ch_id <= 14 \|\|
	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))
	258	return 1;
	259	return 0;
	260	}
	261
	262	static u8 ch_id_to_ch_index(u16 ch_id)
	263	{
	264	if (WARN_ON(!is_valid_channel(ch_id)))
	265	return 0xff;
	266
	267	if (ch_id <= 14)
	268	return ch_id - 1;
	269	if (ch_id <= 64)
	270	return (ch_id + 20) / 4;
	271	if (ch_id <= 140)
	272	return (ch_id - 12) / 4;
	273	return (ch_id - 13) / 4;
	274	}
	275
	276
	277	static u16 channel_id_to_papd(u16 ch_id)
	278	{
	279	if (WARN_ON(!is_valid_channel(ch_id)))
	280	return 0xff;
	281
	282	if (1 <= ch_id && ch_id <= 14)
	283	return 0;
	284	if (36 <= ch_id && ch_id <= 64)
	285	return 1;
	286	if (100 <= ch_id && ch_id <= 140)
	287	return 2;
	288	return 3;
	289	}
	290
	291	static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
	292	{
	293	struct iwl_phy_db_chg_txp *txp_chg;
	294	int i;
	295	u8 ch_index = ch_id_to_ch_index(ch_id);
	296	if (ch_index == 0xff)
	297	return 0xff;
	298
	299	for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) {
	300	txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
	301	if (!txp_chg)
	302	return 0xff;
	303	/*
	304	* Looking for the first channel group that its max channel is
	305	* higher then wanted channel.
	306	*/
	307	if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
	308	return i;
	309	}
	310	return 0xff;
	311	}
	312	static
	313	int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
	314	u32 type, u8 *data, u16 size, u16 ch_id)
315	{
316	struct iwl_phy_db_entry *entry;
b1e1adfa	317	u16 ch_group_id = 0;
b1e1adfa JB	318
	319	if (!phy_db)
	320	return -EINVAL;
	321
	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);
	327
	328	entry = iwl_phy_db_get_section(phy_db, type, ch_group_id);
	329	if (!entry)
	330	return -EINVAL;
	331
12dcf2c3 DS	332	*data = entry->data;
12dcf2c3 DS	333	*size = entry->size;
b1e1adfa	334
b1e1adfa JB	335	IWL_DEBUG_INFO(phy_db->trans,
	336	"%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
	337	__func__, __LINE__, type, *size);
	338
	339	return 0;
	340	}
	341
	342	static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type,
	343	u16 length, void *data)
	344	{
	345	struct iwl_phy_db_cmd phy_db_cmd;
	346	struct iwl_host_cmd cmd = {
	347	.id = PHY_DB_CMD,
	348	.flags = CMD_SYNC,
	349	};
	350
	351	IWL_DEBUG_INFO(phy_db->trans,
	352	"Sending PHY-DB hcmd of type %d, of length %d\n",
	353	type, length);
	354
	355	/* Set phy db cmd variables */
	356	phy_db_cmd.type = cpu_to_le16(type);
	357	phy_db_cmd.length = cpu_to_le16(length);
	358
	359	/* Set hcmd variables */
	360	cmd.data[0] = &phy_db_cmd;
	361	cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
	362	cmd.data[1] = data;
	363	cmd.len[1] = length;
	364	cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
	365
	366	return iwl_trans_send_cmd(phy_db->trans, &cmd);
	367	}
	368
	369	static int iwl_phy_db_send_all_channel_groups(
	370	struct iwl_phy_db *phy_db,
	371	enum iwl_phy_db_section_type type,
	372	u8 max_ch_groups)
	373	{
	374	u16 i;
	375	int err;
	376	struct iwl_phy_db_entry *entry;
	377
	378	/* Send all the channel specific groups to operational fw */
	379	for (i = 0; i < max_ch_groups; i++) {
	380	entry = iwl_phy_db_get_section(phy_db,
	381	type,
	382	i);
	383	if (!entry)
	384	return -EINVAL;
	385
3281bd4c	386	if (!entry->size)
476a9e09 EG	387	continue;
476a9e09 EG	388
b1e1adfa JB	389	/* Send the requested PHY DB section */
	390	err = iwl_send_phy_db_cmd(phy_db,
	391	type,
	392	entry->size,
	393	entry->data);
	394	if (err) {
	395	IWL_ERR(phy_db->trans,
3c6acb61	396	"Can't SEND phy_db section %d (%d), err %d\n",
b1e1adfa JB	397	type, i, err);
	398	return err;
	399	}
	400
	401	IWL_DEBUG_INFO(phy_db->trans,
3c6acb61	402	"Sent PHY_DB HCMD, type = %d num = %d\n",
b1e1adfa JB	403	type, i);
	404	}
	405
	406	return 0;
	407	}
	408
	409	int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
	410	{
	411	u8 *data = NULL;
	412	u16 size = 0;
	413	int err;
	414
	415	IWL_DEBUG_INFO(phy_db->trans,
	416	"Sending phy db data and configuration to runtime image\n");
	417
	418	/* Send PHY DB CFG section */
	419	err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
	420	&data, &size, 0);
	421	if (err) {
	422	IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
	423	return err;
	424	}
	425
	426	err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
	427	if (err) {
	428	IWL_ERR(phy_db->trans,
	429	"Cannot send HCMD of Phy DB cfg section\n");
	430	return err;
	431	}
	432
	433	err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
	434	&data, &size, 0);
	435	if (err) {
	436	IWL_ERR(phy_db->trans,
	437	"Cannot get Phy DB non specific channel section\n");
	438	return err;
	439	}
	440
	441	err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
	442	if (err) {
	443	IWL_ERR(phy_db->trans,
	444	"Cannot send HCMD of Phy DB non specific channel section\n");
	445	return err;
	446	}
	447
	448	/* Send all the TXP channel specific data */
	449	err = iwl_phy_db_send_all_channel_groups(phy_db,
	450	IWL_PHY_DB_CALIB_CHG_PAPD,
	451	IWL_NUM_PAPD_CH_GROUPS);
	452	if (err) {
	453	IWL_ERR(phy_db->trans,
3c6acb61	454	"Cannot send channel specific PAPD groups\n");
b1e1adfa JB	455	return err;
	456	}
	457
	458	/* Send all the TXP channel specific data */
	459	err = iwl_phy_db_send_all_channel_groups(phy_db,
	460	IWL_PHY_DB_CALIB_CHG_TXP,
	461	IWL_NUM_TXP_CH_GROUPS);
	462	if (err) {
	463	IWL_ERR(phy_db->trans,
3c6acb61	464	"Cannot send channel specific TX power groups\n");
b1e1adfa JB	465	return err;
	466	}
	467
	468	IWL_DEBUG_INFO(phy_db->trans,
	469	"Finished sending phy db non channel data\n");
	470	return 0;
	471	}
48e29340	472	IWL_EXPORT_SYMBOL(iwl_send_phy_db_data);