[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 };

/*
 * 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 parameters.
 */
struct mwifiex_chan_freq_power *
mwifiex_get_cfp_by_band_and_channel_from_cfg80211(struct mwifiex_private
						  *priv, u8 band, u16 channel)
{
	struct mwifiex_chan_freq_power *cfp = NULL;
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch;
	int i;

	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"
				" & channel %d\n", __func__, band, channel);
		return cfp;
	}

	for (i = 0; i < sband->n_channels; i++) {
		ch = &sband->channels[i];
		if (((ch->hw_value == channel) ||
			(channel == FIRST_VALID_CHANNEL))
			&& !(ch->flags & IEEE80211_CHAN_DISABLED)) {
			priv->cfp.channel = channel;
			priv->cfp.freq = ch->center_freq;
			priv->cfp.max_tx_power = ch->max_power;
			cfp = &priv->cfp;
			break;
		}
	}
	if (i == sband->n_channels)
		dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
				" & channel %d\n", __func__, band, channel);

	return cfp;
}

/*
 * This function locates the Channel-Frequency-Power triplet based upon
 * band and frequency parameters.
 */
struct mwifiex_chan_freq_power *
mwifiex_get_cfp_by_band_and_freq_from_cfg80211(struct mwifiex_private *priv,
					       u8 band, u32 freq)
{
	struct mwifiex_chan_freq_power *cfp = NULL;
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch;
	int i;

	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"
				" & freq %d\n", __func__, band, freq);
		return cfp;
	}

	for (i = 0; i < sband->n_channels; i++) {
		ch = &sband->channels[i];
		if ((ch->center_freq == freq) &&
			!(ch->flags & IEEE80211_CHAN_DISABLED)) {
			priv->cfp.channel = ch->hw_value;
			priv->cfp.freq = freq;
			priv->cfp.max_tx_power = ch->max_power;
			cfp = &priv->cfp;
			break;
		}
	}
	if (i == sband->n_channels)
		dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
				" & freq %d\n", __func__, band, freq);

	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 BZ	73
	74	/*
	75	* This function maps an index in supported rates table into
	76	* the corresponding data rate.
	77	*/
e3bea1c8 BZ	78	u32 mwifiex_index_to_data_rate(struct mwifiex_private *priv, u8 index,
e3bea1c8 BZ	79	u8 ht_info)
5e6e3a92	80	{
e3bea1c8 BZ	81	/*
	82	* For every mcs_rate line, the first 8 bytes are for stream 1x1,
	83	* and all 16 bytes are for stream 2x2.
	84	*/
	85	u16 mcs_rate[4][16] = {
	86	/* LGI 40M */
	87	{ 0x1b, 0x36, 0x51, 0x6c, 0xa2, 0xd8, 0xf3, 0x10e,
	88	0x36, 0x6c, 0xa2, 0xd8, 0x144, 0x1b0, 0x1e6, 0x21c },
	89
	90	/* SGI 40M */
	91	{ 0x1e, 0x3c, 0x5a, 0x78, 0xb4, 0xf0, 0x10e, 0x12c,
	92	0x3c, 0x78, 0xb4, 0xf0, 0x168, 0x1e0, 0x21c, 0x258 },
	93
	94	/* LGI 20M */
	95	{ 0x0d, 0x1a, 0x27, 0x34, 0x4e, 0x68, 0x75, 0x82,
	96	0x1a, 0x34, 0x4e, 0x68, 0x9c, 0xd0, 0xea, 0x104 },
	97
	98	/* SGI 20M */
	99	{ 0x0e, 0x1c, 0x2b, 0x39, 0x56, 0x73, 0x82, 0x90,
	100	0x1c, 0x39, 0x56, 0x73, 0xad, 0xe7, 0x104, 0x120 }
	101	};
	102	u32 mcs_num_supp =
	103	(priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) ? 16 : 8;
5e6e3a92 BZ	104	u32 rate;
	105
	106	if (ht_info & BIT(0)) {
	107	if (index == MWIFIEX_RATE_BITMAP_MCS0) {
	108	if (ht_info & BIT(2))
	109	rate = 0x0D; /* MCS 32 SGI rate */
	110	else
	111	rate = 0x0C; /* MCS 32 LGI rate */
e3bea1c8	112	} else if (index < mcs_num_supp) {
5e6e3a92 BZ	113	if (ht_info & BIT(1)) {
	114	if (ht_info & BIT(2))
	115	/* SGI, 40M */
	116	rate = mcs_rate[1][index];
	117	else
	118	/* LGI, 40M */
	119	rate = mcs_rate[0][index];
	120	} else {
	121	if (ht_info & BIT(2))
	122	/* SGI, 20M */
	123	rate = mcs_rate[3][index];
	124	else
	125	/* LGI, 20M */
	126	rate = mcs_rate[2][index];
	127	}
	128	} else
	129	rate = mwifiex_data_rates[0];
	130	} else {
	131	if (index >= MWIFIEX_SUPPORTED_RATES_EXT)
	132	index = 0;
	133	rate = mwifiex_data_rates[index];
	134	}
	135	return rate;
	136	}
	137
	138	/*
	139	* This function maps a data rate value into corresponding index in supported
	140	* rates table.
	141	*/
572e8f3e	142	u8 mwifiex_data_rate_to_index(u32 rate)
5e6e3a92 BZ	143	{
	144	u16 *ptr;
	145
	146	if (rate) {
	147	ptr = memchr(mwifiex_data_rates, rate,
	148	sizeof(mwifiex_data_rates));
	149	if (ptr)
	150	return (u8) (ptr - mwifiex_data_rates);
	151	}
	152	return 0;
	153	}
	154
	155	/*
	156	* This function returns the current active data rates.
	157	*
	158	* The result may vary depending upon connection status.
	159	*/
	160	u32 mwifiex_get_active_data_rates(struct mwifiex_private priv, u8 rates)
	161	{
5e6e3a92	162	if (!priv->media_connected)
636c4598	163	return mwifiex_get_supported_rates(priv, rates);
5e6e3a92	164	else
636c4598	165	return mwifiex_copy_rates(rates, 0,
5e6e3a92 BZ	166	priv->curr_bss_params.data_rates,
5e6e3a92 BZ	167	priv->curr_bss_params.num_of_rates);
5e6e3a92 BZ	168	}
	169
	170	/*
	171	* This function locates the Channel-Frequency-Power triplet based upon
	172	* band and channel parameters.
	173	*/
	174	struct mwifiex_chan_freq_power *
	175	mwifiex_get_cfp_by_band_and_channel_from_cfg80211(struct mwifiex_private
	176	*priv, u8 band, u16 channel)
	177	{
	178	struct mwifiex_chan_freq_power *cfp = NULL;
	179	struct ieee80211_supported_band *sband;
	180	struct ieee80211_channel *ch;
	181	int i;
	182
	183	if (mwifiex_band_to_radio_type(band) == HostCmd_SCAN_RADIO_TYPE_BG)
	184	sband = priv->wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
	185	else
	186	sband = priv->wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
	187
	188	if (!sband) {
	189	dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
	190	" & channel %d\n", __func__, band, channel);
	191	return cfp;
	192	}
	193
	194	for (i = 0; i < sband->n_channels; i++) {
	195	ch = &sband->channels[i];
	196	if (((ch->hw_value == channel) \|\|
	197	(channel == FIRST_VALID_CHANNEL))
	198	&& !(ch->flags & IEEE80211_CHAN_DISABLED)) {
	199	priv->cfp.channel = channel;
	200	priv->cfp.freq = ch->center_freq;
	201	priv->cfp.max_tx_power = ch->max_power;
	202	cfp = &priv->cfp;
	203	break;
	204	}
	205	}
	206	if (i == sband->n_channels)
	207	dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
	208	" & channel %d\n", __func__, band, channel);
	209
	210	return cfp;
	211	}
	212
	213	/*
	214	* This function locates the Channel-Frequency-Power triplet based upon
	215	* band and frequency parameters.
	216	*/
	217	struct mwifiex_chan_freq_power *
	218	mwifiex_get_cfp_by_band_and_freq_from_cfg80211(struct mwifiex_private *priv,
	219	u8 band, u32 freq)
	220	{
	221	struct mwifiex_chan_freq_power *cfp = NULL;
	222	struct ieee80211_supported_band *sband;
	223	struct ieee80211_channel *ch;
	224	int i;
	225
	226	if (mwifiex_band_to_radio_type(band) == HostCmd_SCAN_RADIO_TYPE_BG)
	227	sband = priv->wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
	228	else
	229	sband = priv->wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
	230
	231	if (!sband) {
232	dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
233	" & freq %d\n", __func__, band, freq);
234	return cfp;
235	}
236
237	for (i = 0; i < sband->n_channels; i++) {
238	ch = &sband->channels[i];
239	if ((ch->center_freq == freq) &&
240	!(ch->flags & IEEE80211_CHAN_DISABLED)) {
241	priv->cfp.channel = ch->hw_value;
242	priv->cfp.freq = freq;
243	priv->cfp.max_tx_power = ch->max_power;
244	cfp = &priv->cfp;
245	break;
246	}
247	}
248	if (i == sband->n_channels)
249	dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
250	" & freq %d\n", __func__, band, freq);
251
252	return cfp;
253	}
254
255	/*
256	* This function checks if the data rate is set to auto.
257	*/
258	u8
259	mwifiex_is_rate_auto(struct mwifiex_private *priv)
260	{
261	u32 i;
262	int rate_num = 0;
263
264	for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates); i++)
265	if (priv->bitmap_rates[i])
266	rate_num++;
267
268	if (rate_num > 1)
269	return true;
270	else
271	return false;
272	}
273
274	/*
275	* This function converts rate bitmap into rate index.
276	*/
572e8f3e	277	int mwifiex_get_rate_index(u16 *rate_bitmap, int size)
5e6e3a92 BZ	278	{
	279	int i;
	280
	281	for (i = 0; i < size * 8; i++)
	282	if (rate_bitmap[i / 16] & (1 << (i % 16)))
	283	return i;
	284
	285	return 0;
	286	}
	287
	288	/*
	289	* This function gets the supported data rates.
	290	*
	291	* The function works in both Ad-Hoc and infra mode by printing the
	292	* band and returning the data rates.
	293	*/
	294	u32 mwifiex_get_supported_rates(struct mwifiex_private priv, u8 rates)
	295	{
	296	u32 k = 0;
	297	struct mwifiex_adapter *adapter = priv->adapter;
eecd8250	298	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
5e6e3a92 BZ	299	switch (adapter->config_bands) {
	300	case BAND_B:
	301	dev_dbg(adapter->dev, "info: infra band=%d "
	302	"supported_rates_b\n", adapter->config_bands);
	303	k = mwifiex_copy_rates(rates, k, supported_rates_b,
	304	sizeof(supported_rates_b));
	305	break;
	306	case BAND_G:
	307	case BAND_G \| BAND_GN:
	308	dev_dbg(adapter->dev, "info: infra band=%d "
	309	"supported_rates_g\n", adapter->config_bands);
	310	k = mwifiex_copy_rates(rates, k, supported_rates_g,
	311	sizeof(supported_rates_g));
	312	break;
	313	case BAND_B \| BAND_G:
	314	case BAND_A \| BAND_B \| BAND_G:
	315	case BAND_A \| BAND_B:
	316	case BAND_A \| BAND_B \| BAND_G \| BAND_GN \| BAND_AN:
	317	case BAND_B \| BAND_G \| BAND_GN:
	318	dev_dbg(adapter->dev, "info: infra band=%d "
	319	"supported_rates_bg\n", adapter->config_bands);
	320	k = mwifiex_copy_rates(rates, k, supported_rates_bg,
	321	sizeof(supported_rates_bg));
	322	break;
	323	case BAND_A:
	324	case BAND_A \| BAND_G:
	325	dev_dbg(adapter->dev, "info: infra band=%d "
	326	"supported_rates_a\n", adapter->config_bands);
	327	k = mwifiex_copy_rates(rates, k, supported_rates_a,
	328	sizeof(supported_rates_a));
	329	break;
	330	case BAND_A \| BAND_AN:
	331	case BAND_A \| BAND_G \| BAND_AN \| BAND_GN:
	332	dev_dbg(adapter->dev, "info: infra band=%d "
	333	"supported_rates_a\n", adapter->config_bands);
	334	k = mwifiex_copy_rates(rates, k, supported_rates_a,
	335	sizeof(supported_rates_a));
	336	break;
	337	case BAND_GN:
	338	dev_dbg(adapter->dev, "info: infra band=%d "
	339	"supported_rates_n\n", adapter->config_bands);
	340	k = mwifiex_copy_rates(rates, k, supported_rates_n,
	341	sizeof(supported_rates_n));
	342	break;
	343	}
	344	} else {
	345	/* Ad-hoc mode */
	346	switch (adapter->adhoc_start_band) {
	347	case BAND_B:
	348	dev_dbg(adapter->dev, "info: adhoc B\n");
	349	k = mwifiex_copy_rates(rates, k, adhoc_rates_b,
	350	sizeof(adhoc_rates_b));
	351	break;
	352	case BAND_G:
	353	case BAND_G \| BAND_GN:
	354	dev_dbg(adapter->dev, "info: adhoc G only\n");
	355	k = mwifiex_copy_rates(rates, k, adhoc_rates_g,
	356	sizeof(adhoc_rates_g));
	357	break;
	358	case BAND_B \| BAND_G:
	359	case BAND_B \| BAND_G \| BAND_GN:
	360	dev_dbg(adapter->dev, "info: adhoc BG\n");
	361	k = mwifiex_copy_rates(rates, k, adhoc_rates_bg,
	362	sizeof(adhoc_rates_bg));
363	break;
364	case BAND_A:
365	case BAND_A \| BAND_AN:
366	dev_dbg(adapter->dev, "info: adhoc A\n");
367	k = mwifiex_copy_rates(rates, k, adhoc_rates_a,
368	sizeof(adhoc_rates_a));
369	break;
370	}
371	}
372
373	return k;
374	}