[linux-block.git] / drivers / net / wireless / intel / 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.
 * Copyright(c) 2016 Intel Deutschland GmbH
 *
 * 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.
 *
 * The full GNU General Public License is included in this distribution
 * in the file called COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@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 */

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.
 * @n_group_papd: number of entries in papd channel group.
 * @calib_ch_group_papd: calibration data related to papd channel group.
 * @n_group_txp: number of entries in tx power 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;
	int n_group_papd;
	struct iwl_phy_db_entry	*calib_ch_group_papd;
	int n_group_txp;
	struct iwl_phy_db_entry	*calib_ch_group_txp;

	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

/* 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;

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;

	phy_db->n_group_txp = -1;
	phy_db->n_group_papd = -1;

	/* 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 >= phy_db->n_group_papd)
			return NULL;
		return &phy_db->calib_ch_group_papd[chg_id];
	case IWL_PHY_DB_CALIB_CHG_TXP:
		if (chg_id >= phy_db->n_group_txp)
			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 < phy_db->n_group_papd; i++)
		iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
	kfree(phy_db->calib_ch_group_papd);

	for (i = 0; i < phy_db->n_group_txp; i++)
		iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);
	kfree(phy_db->calib_ch_group_txp);

	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)
{
	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) {
		chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
		if (phy_db && !phy_db->calib_ch_group_papd) {
			/*
			 * Firmware sends the largest index first, so we can use
			 * it to know how much we should allocate.
			 */
			phy_db->calib_ch_group_papd = kcalloc(chg_id + 1,
							      sizeof(struct iwl_phy_db_entry),
							      GFP_ATOMIC);
			if (!phy_db->calib_ch_group_papd)
				return -ENOMEM;
			phy_db->n_group_papd = chg_id + 1;
		}
	} else if (type == IWL_PHY_DB_CALIB_CHG_TXP) {
		chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
		if (phy_db && !phy_db->calib_ch_group_txp) {
			/*
			 * Firmware sends the largest index first, so we can use
			 * it to know how much we should allocate.
			 */
			phy_db->calib_ch_group_txp = kcalloc(chg_id + 1,
							     sizeof(struct iwl_phy_db_entry),
							     GFP_ATOMIC);
			if (!phy_db->calib_ch_group_txp)
				return -ENOMEM;
			phy_db->n_group_txp = chg_id + 1;
		}
	}

	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, GFP_ATOMIC);
	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 < phy_db->n_group_txp; 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,
	};

	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,
						 phy_db->n_group_papd);
	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,
						 phy_db->n_group_txp);
	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.
0ec84d1d	9	* Copyright(c) 2016 Intel Deutschland GmbH
b1e1adfa JB	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of version 2 of the GNU General Public License as
	13	* published by the Free Software Foundation.
	14	*
	15	* This program is distributed in the hope that it will be useful, but
	16	* WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	18	* General Public License for more details.
	19	*
b1e1adfa	20	* The full GNU General Public License is included in this distribution
410dc5aa	21	* in the file called COPYING.
b1e1adfa JB	22	*
b1e1adfa JB	23	* Contact Information:
cb2f8277	24	* Intel Linux Wireless <linuxwifi@intel.com>
b1e1adfa JB	25	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	26	*
	27	* BSD LICENSE
	28	*
51368bf7	29	* Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
b1e1adfa JB	30	* All rights reserved.
	31	*
	32	* Redistribution and use in source and binary forms, with or without
	33	* modification, are permitted provided that the following conditions
	34	* are met:
	35	*
	36	* * Redistributions of source code must retain the above copyright
	37	* notice, this list of conditions and the following disclaimer.
	38	* * Redistributions in binary form must reproduce the above copyright
	39	* notice, this list of conditions and the following disclaimer in
	40	* the documentation and/or other materials provided with the
	41	* distribution.
	42	* * Neither the name Intel Corporation nor the names of its
	43	* contributors may be used to endorse or promote products derived
	44	* from this software without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	47	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	48	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	49	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	50	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	51	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	52	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	53	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	54	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	55	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	56	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	57	*
	58	*****************************************************************************/
	59
	60	#include <linux/slab.h>
	61	#include <linux/string.h>
	62	#include <linux/export.h>
	63
48e29340	64	#include "iwl-drv.h"
b1e1adfa JB	65	#include "iwl-phy-db.h"
	66	#include "iwl-debug.h"
	67	#include "iwl-op-mode.h"
	68	#include "iwl-trans.h"
	69
	70	#define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */
b1e1adfa JB	71
	72	struct iwl_phy_db_entry {
	73	u16 size;
	74	u8 *data;
	75	};
	76
	77	/**
	78	* struct iwl_phy_db - stores phy configuration and calibration data.
	79	*
	80	* @cfg: phy configuration.
	81	* @calib_nch: non channel specific calibration data.
	82	* @calib_ch: channel specific calibration data.
0ec84d1d	83	* @n_group_papd: number of entries in papd channel group.
b1e1adfa	84	* @calib_ch_group_papd: calibration data related to papd channel group.
0ec84d1d	85	* @n_group_txp: number of entries in tx power channel group.
b1e1adfa JB	86	* @calib_ch_group_txp: calibration data related to tx power chanel group.
	87	*/
	88	struct iwl_phy_db {
	89	struct iwl_phy_db_entry cfg;
	90	struct iwl_phy_db_entry calib_nch;
0ec84d1d SS	91	int n_group_papd;
	92	struct iwl_phy_db_entry *calib_ch_group_papd;
	93	int n_group_txp;
	94	struct iwl_phy_db_entry *calib_ch_group_txp;
b1e1adfa	95
b1e1adfa JB	96	struct iwl_trans *trans;
	97	};
	98
	99	enum iwl_phy_db_section_type {
	100	IWL_PHY_DB_CFG = 1,
	101	IWL_PHY_DB_CALIB_NCH,
12dcf2c3	102	IWL_PHY_DB_UNUSED,
b1e1adfa JB	103	IWL_PHY_DB_CALIB_CHG_PAPD,
	104	IWL_PHY_DB_CALIB_CHG_TXP,
	105	IWL_PHY_DB_MAX
	106	};
	107
176aa60b	108	#define PHY_DB_CMD 0x6c
b1e1adfa	109
b1e1adfa JB	110	/* for parsing of tx power channel group data that comes from the firmware*/
	111	struct iwl_phy_db_chg_txp {
	112	__le32 space;
	113	__le16 max_channel_idx;
	114	} __packed;
	115
b1e1adfa JB	116	struct iwl_phy_db iwl_phy_db_init(struct iwl_trans trans)
	117	{
	118	struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
	119	GFP_KERNEL);
	120
	121	if (!phy_db)
	122	return phy_db;
	123
	124	phy_db->trans = trans;
	125
0ec84d1d SS	126	phy_db->n_group_txp = -1;
	127	phy_db->n_group_papd = -1;
	128
b1e1adfa JB	129	/* TODO: add default values of the phy db. */
	130	return phy_db;
	131	}
48e29340	132	IWL_EXPORT_SYMBOL(iwl_phy_db_init);
b1e1adfa JB	133
	134	/*
	135	* get phy db section: returns a pointer to a phy db section specified by
	136	* type and channel group id.
	137	*/
	138	static struct iwl_phy_db_entry *
	139	iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
	140	enum iwl_phy_db_section_type type,
	141	u16 chg_id)
	142	{
	143	if (!phy_db \|\| type >= IWL_PHY_DB_MAX)
	144	return NULL;
	145
	146	switch (type) {
	147	case IWL_PHY_DB_CFG:
	148	return &phy_db->cfg;
	149	case IWL_PHY_DB_CALIB_NCH:
	150	return &phy_db->calib_nch;
b1e1adfa	151	case IWL_PHY_DB_CALIB_CHG_PAPD:
0ec84d1d	152	if (chg_id >= phy_db->n_group_papd)
b1e1adfa JB	153	return NULL;
	154	return &phy_db->calib_ch_group_papd[chg_id];
	155	case IWL_PHY_DB_CALIB_CHG_TXP:
0ec84d1d	156	if (chg_id >= phy_db->n_group_txp)
b1e1adfa JB	157	return NULL;
	158	return &phy_db->calib_ch_group_txp[chg_id];
	159	default:
	160	return NULL;
	161	}
	162	return NULL;
	163	}
	164
	165	static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
	166	enum iwl_phy_db_section_type type,
	167	u16 chg_id)
	168	{
	169	struct iwl_phy_db_entry *entry =
	170	iwl_phy_db_get_section(phy_db, type, chg_id);
	171	if (!entry)
	172	return;
	173
	174	kfree(entry->data);
	175	entry->data = NULL;
	176	entry->size = 0;
	177	}
	178
	179	void iwl_phy_db_free(struct iwl_phy_db *phy_db)
	180	{
	181	int i;
	182
	183	if (!phy_db)
	184	return;
	185
	186	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
	187	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
0ec84d1d SS	188
0ec84d1d SS	189	for (i = 0; i < phy_db->n_group_papd; i++)
b1e1adfa	190	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
0ec84d1d SS	191	kfree(phy_db->calib_ch_group_papd);
	192
	193	for (i = 0; i < phy_db->n_group_txp; i++)
b1e1adfa	194	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);
0ec84d1d	195	kfree(phy_db->calib_ch_group_txp);
b1e1adfa JB	196
	197	kfree(phy_db);
	198	}
48e29340	199	IWL_EXPORT_SYMBOL(iwl_phy_db_free);
b1e1adfa	200
ce1f2778 SS	201	int iwl_phy_db_set_section(struct iwl_phy_db *phy_db,
ce1f2778 SS	202	struct iwl_rx_packet *pkt)
b1e1adfa JB	203	{
	204	struct iwl_calib_res_notif_phy_db *phy_db_notif =
	205	(struct iwl_calib_res_notif_phy_db *)pkt->data;
	206	enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type);
	207	u16 size = le16_to_cpu(phy_db_notif->length);
	208	struct iwl_phy_db_entry *entry;
	209	u16 chg_id = 0;
	210
	211	if (!phy_db)
	212	return -EINVAL;
	213
0ec84d1d	214	if (type == IWL_PHY_DB_CALIB_CHG_PAPD) {
b1e1adfa	215	chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
0ec84d1d SS	216	if (phy_db && !phy_db->calib_ch_group_papd) {
	217	/*
	218	* Firmware sends the largest index first, so we can use
	219	* it to know how much we should allocate.
	220	*/
	221	phy_db->calib_ch_group_papd = kcalloc(chg_id + 1,
	222	sizeof(struct iwl_phy_db_entry),
	223	GFP_ATOMIC);
	224	if (!phy_db->calib_ch_group_papd)
	225	return -ENOMEM;
	226	phy_db->n_group_papd = chg_id + 1;
	227	}
	228	} else if (type == IWL_PHY_DB_CALIB_CHG_TXP) {
	229	chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
	230	if (phy_db && !phy_db->calib_ch_group_txp) {
	231	/*
	232	* Firmware sends the largest index first, so we can use
	233	* it to know how much we should allocate.
	234	*/
	235	phy_db->calib_ch_group_txp = kcalloc(chg_id + 1,
	236	sizeof(struct iwl_phy_db_entry),
	237	GFP_ATOMIC);
	238	if (!phy_db->calib_ch_group_txp)
	239	return -ENOMEM;
	240	phy_db->n_group_txp = chg_id + 1;
	241	}
	242	}
b1e1adfa JB	243
	244	entry = iwl_phy_db_get_section(phy_db, type, chg_id);
	245	if (!entry)
	246	return -EINVAL;
	247
	248	kfree(entry->data);
ce1f2778	249	entry->data = kmemdup(phy_db_notif->data, size, GFP_ATOMIC);
b1e1adfa JB	250	if (!entry->data) {
	251	entry->size = 0;
	252	return -ENOMEM;
	253	}
	254
	255	entry->size = size;
	256
b1e1adfa JB	257	IWL_DEBUG_INFO(phy_db->trans,
	258	"%s(%d): [PHYDB]SET: Type %d , Size: %d\n",
	259	__func__, __LINE__, type, size);
	260
	261	return 0;
	262	}
48e29340	263	IWL_EXPORT_SYMBOL(iwl_phy_db_set_section);
b1e1adfa JB	264
	265	static int is_valid_channel(u16 ch_id)
	266	{
	267	if (ch_id <= 14 \|\|
	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))
	271	return 1;
	272	return 0;
	273	}
	274
	275	static u8 ch_id_to_ch_index(u16 ch_id)
	276	{
	277	if (WARN_ON(!is_valid_channel(ch_id)))
	278	return 0xff;
	279
	280	if (ch_id <= 14)
	281	return ch_id - 1;
	282	if (ch_id <= 64)
	283	return (ch_id + 20) / 4;
	284	if (ch_id <= 140)
	285	return (ch_id - 12) / 4;
	286	return (ch_id - 13) / 4;
	287	}
	288
	289
	290	static u16 channel_id_to_papd(u16 ch_id)
	291	{
	292	if (WARN_ON(!is_valid_channel(ch_id)))
	293	return 0xff;
	294
	295	if (1 <= ch_id && ch_id <= 14)
	296	return 0;
	297	if (36 <= ch_id && ch_id <= 64)
	298	return 1;
	299	if (100 <= ch_id && ch_id <= 140)
	300	return 2;
	301	return 3;
	302	}
	303
	304	static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
	305	{
	306	struct iwl_phy_db_chg_txp *txp_chg;
	307	int i;
	308	u8 ch_index = ch_id_to_ch_index(ch_id);
	309	if (ch_index == 0xff)
	310	return 0xff;
	311
0ec84d1d	312	for (i = 0; i < phy_db->n_group_txp; i++) {
b1e1adfa JB	313	txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
	314	if (!txp_chg)
	315	return 0xff;
	316	/*
	317	* Looking for the first channel group that its max channel is
	318	* higher then wanted channel.
	319	*/
	320	if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
	321	return i;
	322	}
	323	return 0xff;
	324	}
	325	static
	326	int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
	327	u32 type, u8 *data, u16 size, u16 ch_id)
	328	{
	329	struct iwl_phy_db_entry *entry;
b1e1adfa	330	u16 ch_group_id = 0;
b1e1adfa JB	331
	332	if (!phy_db)
	333	return -EINVAL;
	334
	335	/* find wanted channel group */
	336	if (type == IWL_PHY_DB_CALIB_CHG_PAPD)
	337	ch_group_id = channel_id_to_papd(ch_id);
	338	else if (type == IWL_PHY_DB_CALIB_CHG_TXP)
	339	ch_group_id = channel_id_to_txp(phy_db, ch_id);
	340
	341	entry = iwl_phy_db_get_section(phy_db, type, ch_group_id);
	342	if (!entry)
	343	return -EINVAL;
	344
12dcf2c3 DS	345	*data = entry->data;
12dcf2c3 DS	346	*size = entry->size;
b1e1adfa	347
b1e1adfa JB	348	IWL_DEBUG_INFO(phy_db->trans,
	349	"%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
	350	__func__, __LINE__, type, *size);
	351
	352	return 0;
	353	}
	354
	355	static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type,
	356	u16 length, void *data)
	357	{
	358	struct iwl_phy_db_cmd phy_db_cmd;
	359	struct iwl_host_cmd cmd = {
	360	.id = PHY_DB_CMD,
b1e1adfa JB	361	};
	362
	363	IWL_DEBUG_INFO(phy_db->trans,
	364	"Sending PHY-DB hcmd of type %d, of length %d\n",
	365	type, length);
	366
	367	/* Set phy db cmd variables */
	368	phy_db_cmd.type = cpu_to_le16(type);
	369	phy_db_cmd.length = cpu_to_le16(length);
	370
	371	/* Set hcmd variables */
	372	cmd.data[0] = &phy_db_cmd;
	373	cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
	374	cmd.data[1] = data;
	375	cmd.len[1] = length;
	376	cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
	377
	378	return iwl_trans_send_cmd(phy_db->trans, &cmd);
	379	}
	380
	381	static int iwl_phy_db_send_all_channel_groups(
	382	struct iwl_phy_db *phy_db,
	383	enum iwl_phy_db_section_type type,
	384	u8 max_ch_groups)
	385	{
	386	u16 i;
	387	int err;
	388	struct iwl_phy_db_entry *entry;
	389
	390	/* Send all the channel specific groups to operational fw */
	391	for (i = 0; i < max_ch_groups; i++) {
	392	entry = iwl_phy_db_get_section(phy_db,
	393	type,
	394	i);
	395	if (!entry)
	396	return -EINVAL;
	397
3281bd4c	398	if (!entry->size)
476a9e09 EG	399	continue;
476a9e09 EG	400
b1e1adfa JB	401	/* Send the requested PHY DB section */
	402	err = iwl_send_phy_db_cmd(phy_db,
	403	type,
	404	entry->size,
	405	entry->data);
	406	if (err) {
	407	IWL_ERR(phy_db->trans,
3c6acb61	408	"Can't SEND phy_db section %d (%d), err %d\n",
b1e1adfa JB	409	type, i, err);
	410	return err;
	411	}
	412
	413	IWL_DEBUG_INFO(phy_db->trans,
3c6acb61	414	"Sent PHY_DB HCMD, type = %d num = %d\n",
b1e1adfa JB	415	type, i);
	416	}
	417
	418	return 0;
	419	}
	420
	421	int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
	422	{
	423	u8 *data = NULL;
	424	u16 size = 0;
	425	int err;
	426
	427	IWL_DEBUG_INFO(phy_db->trans,
	428	"Sending phy db data and configuration to runtime image\n");
	429
	430	/* Send PHY DB CFG section */
	431	err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
	432	&data, &size, 0);
	433	if (err) {
	434	IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
	435	return err;
	436	}
	437
	438	err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
	439	if (err) {
	440	IWL_ERR(phy_db->trans,
	441	"Cannot send HCMD of Phy DB cfg section\n");
	442	return err;
	443	}
	444
	445	err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
	446	&data, &size, 0);
	447	if (err) {
	448	IWL_ERR(phy_db->trans,
	449	"Cannot get Phy DB non specific channel section\n");
	450	return err;
	451	}
	452
	453	err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
	454	if (err) {
	455	IWL_ERR(phy_db->trans,
	456	"Cannot send HCMD of Phy DB non specific channel section\n");
	457	return err;
	458	}
	459
	460	/* Send all the TXP channel specific data */
	461	err = iwl_phy_db_send_all_channel_groups(phy_db,
	462	IWL_PHY_DB_CALIB_CHG_PAPD,
0ec84d1d	463	phy_db->n_group_papd);
b1e1adfa JB	464	if (err) {
b1e1adfa JB	465	IWL_ERR(phy_db->trans,
3c6acb61	466	"Cannot send channel specific PAPD groups\n");
b1e1adfa JB	467	return err;
	468	}
	469
	470	/* Send all the TXP channel specific data */
	471	err = iwl_phy_db_send_all_channel_groups(phy_db,
	472	IWL_PHY_DB_CALIB_CHG_TXP,
0ec84d1d	473	phy_db->n_group_txp);
b1e1adfa JB	474	if (err) {
b1e1adfa JB	475	IWL_ERR(phy_db->trans,
3c6acb61	476	"Cannot send channel specific TX power groups\n");
b1e1adfa JB	477	return err;
	478	}
	479
	480	IWL_DEBUG_INFO(phy_db->trans,
	481	"Finished sending phy db non channel data\n");
	482	return 0;
	483	}
48e29340	484	IWL_EXPORT_SYMBOL(iwl_send_phy_db_data);