[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfp.c

/*
 * Marvell Wireless LAN device driver: Channel, Frequence and Power
 *
 * Copyright (C) 2011, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 */

#include "decl.h"
#include "ioctl.h"
#include "util.h"
#include "fw.h"
#include "main.h"
#include "cfg80211.h"

/* 100mW */
#define MWIFIEX_TX_PWR_DEFAULT     20
/* 100mW */
#define MWIFIEX_TX_PWR_US_DEFAULT      20
/* 50mW */
#define MWIFIEX_TX_PWR_JP_DEFAULT      16
/* 100mW */
#define MWIFIEX_TX_PWR_FR_100MW        20
/* 10mW */
#define MWIFIEX_TX_PWR_FR_10MW         10
/* 100mW */
#define MWIFIEX_TX_PWR_EMEA_DEFAULT    20

static u8 adhoc_rates_b[B_SUPPORTED_RATES] = { 0x82, 0x84, 0x8b, 0x96, 0 };

static u8 adhoc_rates_g[G_SUPPORTED_RATES] = { 0x8c, 0x12, 0x98, 0x24,
					       0xb0, 0x48, 0x60, 0x6c, 0 };

static u8 adhoc_rates_bg[BG_SUPPORTED_RATES] = { 0x82, 0x84, 0x8b, 0x96,
						 0x0c, 0x12, 0x18, 0x24,
						 0x30, 0x48, 0x60, 0x6c, 0 };

static u8 adhoc_rates_a[A_SUPPORTED_RATES] = { 0x8c, 0x12, 0x98, 0x24,
					       0xb0, 0x48, 0x60, 0x6c, 0 };
static u8 supported_rates_a[A_SUPPORTED_RATES] = { 0x0c, 0x12, 0x18, 0x24,
					0xb0, 0x48, 0x60, 0x6c, 0 };
static u16 mwifiex_data_rates[MWIFIEX_SUPPORTED_RATES_EXT] = { 0x02, 0x04,
					0x0B, 0x16, 0x00, 0x0C, 0x12, 0x18,
					0x24, 0x30, 0x48, 0x60, 0x6C, 0x90,
					0x0D, 0x1A, 0x27, 0x34, 0x4E, 0x68,
					0x75, 0x82, 0x0C, 0x1B, 0x36, 0x51,
					0x6C, 0xA2, 0xD8, 0xF3, 0x10E, 0x00 };

static u8 supported_rates_b[B_SUPPORTED_RATES] = { 0x02, 0x04, 0x0b, 0x16, 0 };

static u8 supported_rates_g[G_SUPPORTED_RATES] = { 0x0c, 0x12, 0x18, 0x24,
					0x30, 0x48, 0x60, 0x6c, 0 };

static u8 supported_rates_bg[BG_SUPPORTED_RATES] = { 0x02, 0x04, 0x0b, 0x0c,
					0x12, 0x16, 0x18, 0x24, 0x30, 0x48,
					0x60, 0x6c, 0 };

u16 region_code_index[MWIFIEX_MAX_REGION_CODE] = { 0x10, 0x20, 0x30,
						0x32, 0x40, 0x41, 0xff };

static u8 supported_rates_n[N_SUPPORTED_RATES] = { 0x02, 0x04, 0 };

struct region_code_mapping {
	u8 code;
	u8 region[IEEE80211_COUNTRY_STRING_LEN];
};

static struct region_code_mapping region_code_mapping_t[] = {
	{ 0x10, "US " }, /* US FCC */
	{ 0x20, "CA " }, /* IC Canada */
	{ 0x30, "EU " }, /* ETSI */
	{ 0x31, "ES " }, /* Spain */
	{ 0x32, "FR " }, /* France */
	{ 0x40, "JP " }, /* Japan */
	{ 0x41, "JP " }, /* Japan */
	{ 0x50, "CN " }, /* China */
};

/* This function converts integer code to region string */
u8 *mwifiex_11d_code_2_region(u8 code)
{
	u8 i;
	u8 size = sizeof(region_code_mapping_t)/
				sizeof(struct region_code_mapping);

	/* Look for code in mapping table */
	for (i = 0; i < size; i++)
		if (region_code_mapping_t[i].code == code)
			return region_code_mapping_t[i].region;

	return NULL;
}

/*
 * This function maps an index in supported rates table into
 * the corresponding data rate.
 */
u32 mwifiex_index_to_data_rate(struct mwifiex_private *priv, u8 index,
							u8 ht_info)
{
	/*
	 * For every mcs_rate line, the first 8 bytes are for stream 1x1,
	 * and all 16 bytes are for stream 2x2.
	 */
	u16  mcs_rate[4][16] = {
		/* LGI 40M */
		{ 0x1b, 0x36, 0x51, 0x6c, 0xa2, 0xd8, 0xf3, 0x10e,
		  0x36, 0x6c, 0xa2, 0xd8, 0x144, 0x1b0, 0x1e6, 0x21c },

		/* SGI 40M */
		{ 0x1e, 0x3c, 0x5a, 0x78, 0xb4, 0xf0, 0x10e, 0x12c,
		  0x3c, 0x78, 0xb4, 0xf0, 0x168, 0x1e0, 0x21c, 0x258 },

		/* LGI 20M */
		{ 0x0d, 0x1a, 0x27, 0x34, 0x4e, 0x68, 0x75, 0x82,
		  0x1a, 0x34, 0x4e, 0x68, 0x9c, 0xd0, 0xea, 0x104 },

		/* SGI 20M */
		{ 0x0e, 0x1c, 0x2b, 0x39, 0x56, 0x73, 0x82, 0x90,
		  0x1c, 0x39, 0x56, 0x73, 0xad, 0xe7, 0x104, 0x120 }
	};
	u32 mcs_num_supp =
		(priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) ? 16 : 8;
	u32 rate;

	if (ht_info & BIT(0)) {
		if (index == MWIFIEX_RATE_BITMAP_MCS0) {
			if (ht_info & BIT(2))
				rate = 0x0D;	/* MCS 32 SGI rate */
			else
				rate = 0x0C;	/* MCS 32 LGI rate */
		} else if (index < mcs_num_supp) {
			if (ht_info & BIT(1)) {
				if (ht_info & BIT(2))
					/* SGI, 40M */
					rate = mcs_rate[1][index];
				else
					/* LGI, 40M */
					rate = mcs_rate[0][index];
			} else {
				if (ht_info & BIT(2))
					/* SGI, 20M */
					rate = mcs_rate[3][index];
				else
					/* LGI, 20M */
					rate = mcs_rate[2][index];
			}
		} else
			rate = mwifiex_data_rates[0];
	} else {
		if (index >= MWIFIEX_SUPPORTED_RATES_EXT)
			index = 0;
		rate = mwifiex_data_rates[index];
	}
	return rate;
}

/*
 * This function maps a data rate value into corresponding index in supported
 * rates table.
 */
u8 mwifiex_data_rate_to_index(u32 rate)
{
	u16 *ptr;

	if (rate) {
		ptr = memchr(mwifiex_data_rates, rate,
				sizeof(mwifiex_data_rates));
		if (ptr)
			return (u8) (ptr - mwifiex_data_rates);
	}
	return 0;
}

/*
 * This function returns the current active data rates.
 *
 * The result may vary depending upon connection status.
 */
u32 mwifiex_get_active_data_rates(struct mwifiex_private *priv, u8 *rates)
{
	if (!priv->media_connected)
		return mwifiex_get_supported_rates(priv, rates);
	else
		return mwifiex_copy_rates(rates, 0,
					  priv->curr_bss_params.data_rates,
					  priv->curr_bss_params.num_of_rates);
}

/*
 * This function locates the Channel-Frequency-Power triplet based upon
 * band and channel/frequency parameters.
 */
struct mwifiex_chan_freq_power *
mwifiex_get_cfp(struct mwifiex_private *priv, u8 band, u16 channel, u32 freq)
{
	struct mwifiex_chan_freq_power *cfp = NULL;
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch = NULL;
	int i;

	if (!channel && !freq)
		return cfp;

	if (mwifiex_band_to_radio_type(band) == HostCmd_SCAN_RADIO_TYPE_BG)
		sband = priv->wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
	else
		sband = priv->wdev->wiphy->bands[IEEE80211_BAND_5GHZ];

	if (!sband) {
		dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d\n",
			__func__, band);
		return cfp;
	}

	for (i = 0; i < sband->n_channels; i++) {
		ch = &sband->channels[i];

		if (ch->flags & IEEE80211_CHAN_DISABLED)
			continue;

		if (freq) {
			if (ch->center_freq == freq)
				break;
		} else {
			/* find by valid channel*/
			if (ch->hw_value == channel ||
			    channel == FIRST_VALID_CHANNEL)
				break;
		}
	}
	if (i == sband->n_channels) {
		dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
			" & channel=%d freq=%d\n", __func__, band, channel,
			freq);
	} else {
		if (!ch)
			return cfp;

		priv->cfp.channel = ch->hw_value;
		priv->cfp.freq = ch->center_freq;
		priv->cfp.max_tx_power = ch->max_power;
		cfp = &priv->cfp;
	}

	return cfp;
}

/*
 * This function checks if the data rate is set to auto.
 */
u8
mwifiex_is_rate_auto(struct mwifiex_private *priv)
{
	u32 i;
	int rate_num = 0;

	for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates); i++)
		if (priv->bitmap_rates[i])
			rate_num++;

	if (rate_num > 1)
		return true;
	else
		return false;
}

/*
 * This function converts rate bitmap into rate index.
 */
int mwifiex_get_rate_index(u16 *rate_bitmap, int size)
{
	int i;

	for (i = 0; i < size * 8; i++)
		if (rate_bitmap[i / 16] & (1 << (i % 16)))
			return i;

	return 0;
}

/*
 * This function gets the supported data rates.
 *
 * The function works in both Ad-Hoc and infra mode by printing the
 * band and returning the data rates.
 */
u32 mwifiex_get_supported_rates(struct mwifiex_private *priv, u8 *rates)
{
	u32 k = 0;
	struct mwifiex_adapter *adapter = priv->adapter;
	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
		switch (adapter->config_bands) {
		case BAND_B:
			dev_dbg(adapter->dev, "info: infra band=%d "
				"supported_rates_b\n", adapter->config_bands);
			k = mwifiex_copy_rates(rates, k, supported_rates_b,
					       sizeof(supported_rates_b));
			break;
		case BAND_G:
		case BAND_G | BAND_GN:
			dev_dbg(adapter->dev, "info: infra band=%d "
				"supported_rates_g\n", adapter->config_bands);
			k = mwifiex_copy_rates(rates, k, supported_rates_g,
					       sizeof(supported_rates_g));
			break;
		case BAND_B | BAND_G:
		case BAND_A | BAND_B | BAND_G:
		case BAND_A | BAND_B:
		case BAND_A | BAND_B | BAND_G | BAND_GN | BAND_AN:
		case BAND_B | BAND_G | BAND_GN:
			dev_dbg(adapter->dev, "info: infra band=%d "
				"supported_rates_bg\n", adapter->config_bands);
			k = mwifiex_copy_rates(rates, k, supported_rates_bg,
					       sizeof(supported_rates_bg));
			break;
		case BAND_A:
		case BAND_A | BAND_G:
			dev_dbg(adapter->dev, "info: infra band=%d "
				"supported_rates_a\n", adapter->config_bands);
			k = mwifiex_copy_rates(rates, k, supported_rates_a,
					       sizeof(supported_rates_a));
			break;
		case BAND_A | BAND_AN:
		case BAND_A | BAND_G | BAND_AN | BAND_GN:
			dev_dbg(adapter->dev, "info: infra band=%d "
				"supported_rates_a\n", adapter->config_bands);
			k = mwifiex_copy_rates(rates, k, supported_rates_a,
					       sizeof(supported_rates_a));
			break;
		case BAND_GN:
			dev_dbg(adapter->dev, "info: infra band=%d "
				"supported_rates_n\n", adapter->config_bands);
			k = mwifiex_copy_rates(rates, k, supported_rates_n,
					       sizeof(supported_rates_n));
			break;
		}
	} else {
		/* Ad-hoc mode */
		switch (adapter->adhoc_start_band) {
		case BAND_B:
			dev_dbg(adapter->dev, "info: adhoc B\n");
			k = mwifiex_copy_rates(rates, k, adhoc_rates_b,
					       sizeof(adhoc_rates_b));
			break;
		case BAND_G:
		case BAND_G | BAND_GN:
			dev_dbg(adapter->dev, "info: adhoc G only\n");
			k = mwifiex_copy_rates(rates, k, adhoc_rates_g,
					       sizeof(adhoc_rates_g));
			break;
		case BAND_B | BAND_G:
		case BAND_B | BAND_G | BAND_GN:
			dev_dbg(adapter->dev, "info: adhoc BG\n");
			k = mwifiex_copy_rates(rates, k, adhoc_rates_bg,
					       sizeof(adhoc_rates_bg));
			break;
		case BAND_A:
		case BAND_A | BAND_AN:
			dev_dbg(adapter->dev, "info: adhoc A\n");
			k = mwifiex_copy_rates(rates, k, adhoc_rates_a,
					       sizeof(adhoc_rates_a));
			break;
		}
	}

	return k;
}
Commit	Line	Data
5e6e3a92 BZ	1	/*
	2	* Marvell Wireless LAN device driver: Channel, Frequence and Power
	3	*
	4	* Copyright (C) 2011, Marvell International Ltd.
	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	16	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	17	* this warranty disclaimer.
	18	*/
	19
	20	#include "decl.h"
	21	#include "ioctl.h"
	22	#include "util.h"
	23	#include "fw.h"
	24	#include "main.h"
	25	#include "cfg80211.h"
	26
	27	/* 100mW */
	28	#define MWIFIEX_TX_PWR_DEFAULT 20
	29	/* 100mW */
	30	#define MWIFIEX_TX_PWR_US_DEFAULT 20
	31	/* 50mW */
	32	#define MWIFIEX_TX_PWR_JP_DEFAULT 16
	33	/* 100mW */
	34	#define MWIFIEX_TX_PWR_FR_100MW 20
	35	/* 10mW */
	36	#define MWIFIEX_TX_PWR_FR_10MW 10
	37	/* 100mW */
	38	#define MWIFIEX_TX_PWR_EMEA_DEFAULT 20
	39
	40	static u8 adhoc_rates_b[B_SUPPORTED_RATES] = { 0x82, 0x84, 0x8b, 0x96, 0 };
	41
	42	static u8 adhoc_rates_g[G_SUPPORTED_RATES] = { 0x8c, 0x12, 0x98, 0x24,
	43	0xb0, 0x48, 0x60, 0x6c, 0 };
	44
	45	static u8 adhoc_rates_bg[BG_SUPPORTED_RATES] = { 0x82, 0x84, 0x8b, 0x96,
	46	0x0c, 0x12, 0x18, 0x24,
	47	0x30, 0x48, 0x60, 0x6c, 0 };
	48
	49	static u8 adhoc_rates_a[A_SUPPORTED_RATES] = { 0x8c, 0x12, 0x98, 0x24,
	50	0xb0, 0x48, 0x60, 0x6c, 0 };
711825a0	51	static u8 supported_rates_a[A_SUPPORTED_RATES] = { 0x0c, 0x12, 0x18, 0x24,
5e6e3a92 BZ	52	0xb0, 0x48, 0x60, 0x6c, 0 };
	53	static u16 mwifiex_data_rates[MWIFIEX_SUPPORTED_RATES_EXT] = { 0x02, 0x04,
	54	0x0B, 0x16, 0x00, 0x0C, 0x12, 0x18,
	55	0x24, 0x30, 0x48, 0x60, 0x6C, 0x90,
	56	0x0D, 0x1A, 0x27, 0x34, 0x4E, 0x68,
	57	0x75, 0x82, 0x0C, 0x1B, 0x36, 0x51,
	58	0x6C, 0xA2, 0xD8, 0xF3, 0x10E, 0x00 };
	59
711825a0	60	static u8 supported_rates_b[B_SUPPORTED_RATES] = { 0x02, 0x04, 0x0b, 0x16, 0 };
5e6e3a92	61
711825a0	62	static u8 supported_rates_g[G_SUPPORTED_RATES] = { 0x0c, 0x12, 0x18, 0x24,
5e6e3a92 BZ	63	0x30, 0x48, 0x60, 0x6c, 0 };
5e6e3a92 BZ	64
711825a0	65	static u8 supported_rates_bg[BG_SUPPORTED_RATES] = { 0x02, 0x04, 0x0b, 0x0c,
5e6e3a92 BZ	66	0x12, 0x16, 0x18, 0x24, 0x30, 0x48,
	67	0x60, 0x6c, 0 };
	68
	69	u16 region_code_index[MWIFIEX_MAX_REGION_CODE] = { 0x10, 0x20, 0x30,
	70	0x32, 0x40, 0x41, 0xff };
	71
711825a0	72	static u8 supported_rates_n[N_SUPPORTED_RATES] = { 0x02, 0x04, 0 };
5e6e3a92	73
9e04a7c6 AK	74	struct region_code_mapping {
	75	u8 code;
	76	u8 region[IEEE80211_COUNTRY_STRING_LEN];
	77	};
	78
	79	static struct region_code_mapping region_code_mapping_t[] = {
	80	{ 0x10, "US " }, /* US FCC */
	81	{ 0x20, "CA " }, /* IC Canada */
	82	{ 0x30, "EU " }, /* ETSI */
	83	{ 0x31, "ES " }, /* Spain */
	84	{ 0x32, "FR " }, /* France */
	85	{ 0x40, "JP " }, /* Japan */
	86	{ 0x41, "JP " }, /* Japan */
	87	{ 0x50, "CN " }, /* China */
	88	};
	89
	90	/* This function converts integer code to region string */
	91	u8 *mwifiex_11d_code_2_region(u8 code)
	92	{
	93	u8 i;
	94	u8 size = sizeof(region_code_mapping_t)/
	95	sizeof(struct region_code_mapping);
	96
	97	/* Look for code in mapping table */
	98	for (i = 0; i < size; i++)
	99	if (region_code_mapping_t[i].code == code)
	100	return region_code_mapping_t[i].region;
	101
	102	return NULL;
	103	}
	104
5e6e3a92 BZ	105	/*
	106	* This function maps an index in supported rates table into
	107	* the corresponding data rate.
	108	*/
e3bea1c8 BZ	109	u32 mwifiex_index_to_data_rate(struct mwifiex_private *priv, u8 index,
e3bea1c8 BZ	110	u8 ht_info)
5e6e3a92	111	{
e3bea1c8 BZ	112	/*
	113	* For every mcs_rate line, the first 8 bytes are for stream 1x1,
	114	* and all 16 bytes are for stream 2x2.
	115	*/
	116	u16 mcs_rate[4][16] = {
	117	/* LGI 40M */
	118	{ 0x1b, 0x36, 0x51, 0x6c, 0xa2, 0xd8, 0xf3, 0x10e,
	119	0x36, 0x6c, 0xa2, 0xd8, 0x144, 0x1b0, 0x1e6, 0x21c },
	120
	121	/* SGI 40M */
	122	{ 0x1e, 0x3c, 0x5a, 0x78, 0xb4, 0xf0, 0x10e, 0x12c,
	123	0x3c, 0x78, 0xb4, 0xf0, 0x168, 0x1e0, 0x21c, 0x258 },
	124
	125	/* LGI 20M */
	126	{ 0x0d, 0x1a, 0x27, 0x34, 0x4e, 0x68, 0x75, 0x82,
	127	0x1a, 0x34, 0x4e, 0x68, 0x9c, 0xd0, 0xea, 0x104 },
	128
	129	/* SGI 20M */
	130	{ 0x0e, 0x1c, 0x2b, 0x39, 0x56, 0x73, 0x82, 0x90,
	131	0x1c, 0x39, 0x56, 0x73, 0xad, 0xe7, 0x104, 0x120 }
	132	};
	133	u32 mcs_num_supp =
	134	(priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) ? 16 : 8;
5e6e3a92 BZ	135	u32 rate;
	136
	137	if (ht_info & BIT(0)) {
	138	if (index == MWIFIEX_RATE_BITMAP_MCS0) {
	139	if (ht_info & BIT(2))
	140	rate = 0x0D; /* MCS 32 SGI rate */
	141	else
	142	rate = 0x0C; /* MCS 32 LGI rate */
e3bea1c8	143	} else if (index < mcs_num_supp) {
5e6e3a92 BZ	144	if (ht_info & BIT(1)) {
	145	if (ht_info & BIT(2))
	146	/* SGI, 40M */
	147	rate = mcs_rate[1][index];
	148	else
	149	/* LGI, 40M */
	150	rate = mcs_rate[0][index];
	151	} else {
	152	if (ht_info & BIT(2))
	153	/* SGI, 20M */
	154	rate = mcs_rate[3][index];
	155	else
	156	/* LGI, 20M */
	157	rate = mcs_rate[2][index];
	158	}
	159	} else
	160	rate = mwifiex_data_rates[0];
	161	} else {
	162	if (index >= MWIFIEX_SUPPORTED_RATES_EXT)
	163	index = 0;
	164	rate = mwifiex_data_rates[index];
	165	}
	166	return rate;
	167	}
	168
	169	/*
	170	* This function maps a data rate value into corresponding index in supported
	171	* rates table.
	172	*/
572e8f3e	173	u8 mwifiex_data_rate_to_index(u32 rate)
5e6e3a92 BZ	174	{
	175	u16 *ptr;
	176
	177	if (rate) {
	178	ptr = memchr(mwifiex_data_rates, rate,
	179	sizeof(mwifiex_data_rates));
	180	if (ptr)
	181	return (u8) (ptr - mwifiex_data_rates);
	182	}
	183	return 0;
	184	}
	185
	186	/*
	187	* This function returns the current active data rates.
	188	*
	189	* The result may vary depending upon connection status.
	190	*/
	191	u32 mwifiex_get_active_data_rates(struct mwifiex_private priv, u8 rates)
	192	{
5e6e3a92	193	if (!priv->media_connected)
636c4598	194	return mwifiex_get_supported_rates(priv, rates);
5e6e3a92	195	else
636c4598	196	return mwifiex_copy_rates(rates, 0,
aea0701e YAP	197	priv->curr_bss_params.data_rates,
aea0701e YAP	198	priv->curr_bss_params.num_of_rates);
5e6e3a92 BZ	199	}
	200
	201	/*
	202	* This function locates the Channel-Frequency-Power triplet based upon
6685d109	203	* band and channel/frequency parameters.
5e6e3a92 BZ	204	*/
5e6e3a92 BZ	205	struct mwifiex_chan_freq_power *
6685d109	206	mwifiex_get_cfp(struct mwifiex_private *priv, u8 band, u16 channel, u32 freq)
5e6e3a92 BZ	207	{
	208	struct mwifiex_chan_freq_power *cfp = NULL;
	209	struct ieee80211_supported_band *sband;
6685d109	210	struct ieee80211_channel *ch = NULL;
5e6e3a92 BZ	211	int i;
5e6e3a92 BZ	212
6685d109	213	if (!channel && !freq)
5e6e3a92	214	return cfp;
5e6e3a92 BZ	215
	216	if (mwifiex_band_to_radio_type(band) == HostCmd_SCAN_RADIO_TYPE_BG)
	217	sband = priv->wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
	218	else
	219	sband = priv->wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
	220
	221	if (!sband) {
6685d109 YAP	222	dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d\n",
6685d109 YAP	223	__func__, band);
5e6e3a92 BZ	224	return cfp;
	225	}
	226
	227	for (i = 0; i < sband->n_channels; i++) {
	228	ch = &sband->channels[i];
6685d109 YAP	229
	230	if (ch->flags & IEEE80211_CHAN_DISABLED)
	231	continue;
	232
	233	if (freq) {
	234	if (ch->center_freq == freq)
	235	break;
	236	} else {
	237	/* find by valid channel*/
	238	if (ch->hw_value == channel \|\|
	239	channel == FIRST_VALID_CHANNEL)
	240	break;
5e6e3a92 BZ	241	}
5e6e3a92 BZ	242	}
6685d109	243	if (i == sband->n_channels) {
5e6e3a92	244	dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
6685d109 YAP	245	" & channel=%d freq=%d\n", __func__, band, channel,
	246	freq);
	247	} else {
	248	if (!ch)
	249	return cfp;
	250
	251	priv->cfp.channel = ch->hw_value;
	252	priv->cfp.freq = ch->center_freq;
	253	priv->cfp.max_tx_power = ch->max_power;
	254	cfp = &priv->cfp;
	255	}
5e6e3a92 BZ	256
	257	return cfp;
	258	}
	259
	260	/*
	261	* This function checks if the data rate is set to auto.
	262	*/
	263	u8
	264	mwifiex_is_rate_auto(struct mwifiex_private *priv)
	265	{
	266	u32 i;
	267	int rate_num = 0;
	268
	269	for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates); i++)
	270	if (priv->bitmap_rates[i])
	271	rate_num++;
	272
	273	if (rate_num > 1)
	274	return true;
	275	else
	276	return false;
	277	}
	278
	279	/*
	280	* This function converts rate bitmap into rate index.
	281	*/
572e8f3e	282	int mwifiex_get_rate_index(u16 *rate_bitmap, int size)
5e6e3a92 BZ	283	{
	284	int i;
	285
	286	for (i = 0; i < size * 8; i++)
	287	if (rate_bitmap[i / 16] & (1 << (i % 16)))
	288	return i;
	289
	290	return 0;
	291	}
	292
	293	/*
	294	* This function gets the supported data rates.
	295	*
	296	* The function works in both Ad-Hoc and infra mode by printing the
	297	* band and returning the data rates.
	298	*/
	299	u32 mwifiex_get_supported_rates(struct mwifiex_private priv, u8 rates)
	300	{
	301	u32 k = 0;
	302	struct mwifiex_adapter *adapter = priv->adapter;
eecd8250	303	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
5e6e3a92 BZ	304	switch (adapter->config_bands) {
	305	case BAND_B:
	306	dev_dbg(adapter->dev, "info: infra band=%d "
	307	"supported_rates_b\n", adapter->config_bands);
	308	k = mwifiex_copy_rates(rates, k, supported_rates_b,
	309	sizeof(supported_rates_b));
	310	break;
	311	case BAND_G:
	312	case BAND_G \| BAND_GN:
	313	dev_dbg(adapter->dev, "info: infra band=%d "
	314	"supported_rates_g\n", adapter->config_bands);
	315	k = mwifiex_copy_rates(rates, k, supported_rates_g,
	316	sizeof(supported_rates_g));
	317	break;
	318	case BAND_B \| BAND_G:
	319	case BAND_A \| BAND_B \| BAND_G:
	320	case BAND_A \| BAND_B:
	321	case BAND_A \| BAND_B \| BAND_G \| BAND_GN \| BAND_AN:
	322	case BAND_B \| BAND_G \| BAND_GN:
	323	dev_dbg(adapter->dev, "info: infra band=%d "
	324	"supported_rates_bg\n", adapter->config_bands);
	325	k = mwifiex_copy_rates(rates, k, supported_rates_bg,
	326	sizeof(supported_rates_bg));
	327	break;
	328	case BAND_A:
	329	case BAND_A \| BAND_G:
	330	dev_dbg(adapter->dev, "info: infra band=%d "
	331	"supported_rates_a\n", adapter->config_bands);
	332	k = mwifiex_copy_rates(rates, k, supported_rates_a,
	333	sizeof(supported_rates_a));
	334	break;
	335	case BAND_A \| BAND_AN:
	336	case BAND_A \| BAND_G \| BAND_AN \| BAND_GN:
	337	dev_dbg(adapter->dev, "info: infra band=%d "
	338	"supported_rates_a\n", adapter->config_bands);
	339	k = mwifiex_copy_rates(rates, k, supported_rates_a,
	340	sizeof(supported_rates_a));
	341	break;
	342	case BAND_GN:
	343	dev_dbg(adapter->dev, "info: infra band=%d "
	344	"supported_rates_n\n", adapter->config_bands);
	345	k = mwifiex_copy_rates(rates, k, supported_rates_n,
	346	sizeof(supported_rates_n));
	347	break;
	348	}
	349	} else {
	350	/* Ad-hoc mode */
	351	switch (adapter->adhoc_start_band) {
	352	case BAND_B:
	353	dev_dbg(adapter->dev, "info: adhoc B\n");
	354	k = mwifiex_copy_rates(rates, k, adhoc_rates_b,
	355	sizeof(adhoc_rates_b));
	356	break;
	357	case BAND_G:
	358	case BAND_G \| BAND_GN:
	359	dev_dbg(adapter->dev, "info: adhoc G only\n");
	360	k = mwifiex_copy_rates(rates, k, adhoc_rates_g,
	361	sizeof(adhoc_rates_g));
	362	break;
	363	case BAND_B \| BAND_G:
	364	case BAND_B \| BAND_G \| BAND_GN:
	365	dev_dbg(adapter->dev, "info: adhoc BG\n");
	366	k = mwifiex_copy_rates(rates, k, adhoc_rates_bg,
	367	sizeof(adhoc_rates_bg));
368	break;
369	case BAND_A:
370	case BAND_A \| BAND_AN:
371	dev_dbg(adapter->dev, "info: adhoc A\n");
372	k = mwifiex_copy_rates(rates, k, adhoc_rates_a,
373	sizeof(adhoc_rates_a));
374	break;
375	}
376	}
377
378	return k;
379	}