2 * Marvell Wireless LAN device driver: Channel, Frequence and Power
4 * Copyright (C) 2011, Marvell International Ltd.
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.
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.
28 #define MWIFIEX_TX_PWR_DEFAULT 20
30 #define MWIFIEX_TX_PWR_US_DEFAULT 20
32 #define MWIFIEX_TX_PWR_JP_DEFAULT 16
34 #define MWIFIEX_TX_PWR_FR_100MW 20
36 #define MWIFIEX_TX_PWR_FR_10MW 10
38 #define MWIFIEX_TX_PWR_EMEA_DEFAULT 20
40 static u8 adhoc_rates_b
[B_SUPPORTED_RATES
] = { 0x82, 0x84, 0x8b, 0x96, 0 };
42 static u8 adhoc_rates_g
[G_SUPPORTED_RATES
] = { 0x8c, 0x12, 0x98, 0x24,
43 0xb0, 0x48, 0x60, 0x6c, 0 };
45 static u8 adhoc_rates_bg
[BG_SUPPORTED_RATES
] = { 0x82, 0x84, 0x8b, 0x96,
46 0x0c, 0x12, 0x18, 0x24,
47 0x30, 0x48, 0x60, 0x6c, 0 };
49 static u8 adhoc_rates_a
[A_SUPPORTED_RATES
] = { 0x8c, 0x12, 0x98, 0x24,
50 0xb0, 0x48, 0x60, 0x6c, 0 };
51 static u8 supported_rates_a
[A_SUPPORTED_RATES
] = { 0x0c, 0x12, 0x18, 0x24,
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 };
60 static u8 supported_rates_b
[B_SUPPORTED_RATES
] = { 0x02, 0x04, 0x0b, 0x16, 0 };
62 static u8 supported_rates_g
[G_SUPPORTED_RATES
] = { 0x0c, 0x12, 0x18, 0x24,
63 0x30, 0x48, 0x60, 0x6c, 0 };
65 static u8 supported_rates_bg
[BG_SUPPORTED_RATES
] = { 0x02, 0x04, 0x0b, 0x0c,
66 0x12, 0x16, 0x18, 0x24, 0x30, 0x48,
69 u16 region_code_index
[MWIFIEX_MAX_REGION_CODE
] = { 0x10, 0x20, 0x30,
70 0x32, 0x40, 0x41, 0xff };
72 static u8 supported_rates_n
[N_SUPPORTED_RATES
] = { 0x02, 0x04, 0 };
75 * This function maps an index in supported rates table into
76 * the corresponding data rate.
78 u32
mwifiex_index_to_data_rate(struct mwifiex_private
*priv
, u8 index
,
82 * For every mcs_rate line, the first 8 bytes are for stream 1x1,
83 * and all 16 bytes are for stream 2x2.
85 u16 mcs_rate
[4][16] = {
87 { 0x1b, 0x36, 0x51, 0x6c, 0xa2, 0xd8, 0xf3, 0x10e,
88 0x36, 0x6c, 0xa2, 0xd8, 0x144, 0x1b0, 0x1e6, 0x21c },
91 { 0x1e, 0x3c, 0x5a, 0x78, 0xb4, 0xf0, 0x10e, 0x12c,
92 0x3c, 0x78, 0xb4, 0xf0, 0x168, 0x1e0, 0x21c, 0x258 },
95 { 0x0d, 0x1a, 0x27, 0x34, 0x4e, 0x68, 0x75, 0x82,
96 0x1a, 0x34, 0x4e, 0x68, 0x9c, 0xd0, 0xea, 0x104 },
99 { 0x0e, 0x1c, 0x2b, 0x39, 0x56, 0x73, 0x82, 0x90,
100 0x1c, 0x39, 0x56, 0x73, 0xad, 0xe7, 0x104, 0x120 }
103 (priv
->adapter
->hw_dev_mcs_support
== HT_STREAM_2X2
) ? 16 : 8;
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 */
111 rate
= 0x0C; /* MCS 32 LGI rate */
112 } else if (index
< mcs_num_supp
) {
113 if (ht_info
& BIT(1)) {
114 if (ht_info
& BIT(2))
116 rate
= mcs_rate
[1][index
];
119 rate
= mcs_rate
[0][index
];
121 if (ht_info
& BIT(2))
123 rate
= mcs_rate
[3][index
];
126 rate
= mcs_rate
[2][index
];
129 rate
= mwifiex_data_rates
[0];
131 if (index
>= MWIFIEX_SUPPORTED_RATES_EXT
)
133 rate
= mwifiex_data_rates
[index
];
139 * This function maps a data rate value into corresponding index in supported
142 u8
mwifiex_data_rate_to_index(u32 rate
)
147 ptr
= memchr(mwifiex_data_rates
, rate
,
148 sizeof(mwifiex_data_rates
));
150 return (u8
) (ptr
- mwifiex_data_rates
);
156 * This function returns the current active data rates.
158 * The result may vary depending upon connection status.
160 u32
mwifiex_get_active_data_rates(struct mwifiex_private
*priv
, u8
*rates
)
162 if (!priv
->media_connected
)
163 return mwifiex_get_supported_rates(priv
, rates
);
165 return mwifiex_copy_rates(rates
, 0,
166 priv
->curr_bss_params
.data_rates
,
167 priv
->curr_bss_params
.num_of_rates
);
171 * This function locates the Channel-Frequency-Power triplet based upon
172 * band and channel/frequency parameters.
174 struct mwifiex_chan_freq_power
*
175 mwifiex_get_cfp(struct mwifiex_private
*priv
, u8 band
, u16 channel
, u32 freq
)
177 struct mwifiex_chan_freq_power
*cfp
= NULL
;
178 struct ieee80211_supported_band
*sband
;
179 struct ieee80211_channel
*ch
= NULL
;
182 if (!channel
&& !freq
)
185 if (mwifiex_band_to_radio_type(band
) == HostCmd_SCAN_RADIO_TYPE_BG
)
186 sband
= priv
->wdev
->wiphy
->bands
[IEEE80211_BAND_2GHZ
];
188 sband
= priv
->wdev
->wiphy
->bands
[IEEE80211_BAND_5GHZ
];
191 dev_err(priv
->adapter
->dev
, "%s: cannot find cfp by band %d\n",
196 for (i
= 0; i
< sband
->n_channels
; i
++) {
197 ch
= &sband
->channels
[i
];
199 if (ch
->flags
& IEEE80211_CHAN_DISABLED
)
203 if (ch
->center_freq
== freq
)
206 /* find by valid channel*/
207 if (ch
->hw_value
== channel
||
208 channel
== FIRST_VALID_CHANNEL
)
212 if (i
== sband
->n_channels
) {
213 dev_err(priv
->adapter
->dev
, "%s: cannot find cfp by band %d"
214 " & channel=%d freq=%d\n", __func__
, band
, channel
,
220 priv
->cfp
.channel
= ch
->hw_value
;
221 priv
->cfp
.freq
= ch
->center_freq
;
222 priv
->cfp
.max_tx_power
= ch
->max_power
;
230 * This function checks if the data rate is set to auto.
233 mwifiex_is_rate_auto(struct mwifiex_private
*priv
)
238 for (i
= 0; i
< ARRAY_SIZE(priv
->bitmap_rates
); i
++)
239 if (priv
->bitmap_rates
[i
])
249 * This function converts rate bitmap into rate index.
251 int mwifiex_get_rate_index(u16
*rate_bitmap
, int size
)
255 for (i
= 0; i
< size
* 8; i
++)
256 if (rate_bitmap
[i
/ 16] & (1 << (i
% 16)))
263 * This function gets the supported data rates.
265 * The function works in both Ad-Hoc and infra mode by printing the
266 * band and returning the data rates.
268 u32
mwifiex_get_supported_rates(struct mwifiex_private
*priv
, u8
*rates
)
271 struct mwifiex_adapter
*adapter
= priv
->adapter
;
272 if (priv
->bss_mode
== NL80211_IFTYPE_STATION
) {
273 switch (adapter
->config_bands
) {
275 dev_dbg(adapter
->dev
, "info: infra band=%d "
276 "supported_rates_b\n", adapter
->config_bands
);
277 k
= mwifiex_copy_rates(rates
, k
, supported_rates_b
,
278 sizeof(supported_rates_b
));
281 case BAND_G
| BAND_GN
:
282 dev_dbg(adapter
->dev
, "info: infra band=%d "
283 "supported_rates_g\n", adapter
->config_bands
);
284 k
= mwifiex_copy_rates(rates
, k
, supported_rates_g
,
285 sizeof(supported_rates_g
));
287 case BAND_B
| BAND_G
:
288 case BAND_A
| BAND_B
| BAND_G
:
289 case BAND_A
| BAND_B
:
290 case BAND_A
| BAND_B
| BAND_G
| BAND_GN
| BAND_AN
:
291 case BAND_B
| BAND_G
| BAND_GN
:
292 dev_dbg(adapter
->dev
, "info: infra band=%d "
293 "supported_rates_bg\n", adapter
->config_bands
);
294 k
= mwifiex_copy_rates(rates
, k
, supported_rates_bg
,
295 sizeof(supported_rates_bg
));
298 case BAND_A
| BAND_G
:
299 dev_dbg(adapter
->dev
, "info: infra band=%d "
300 "supported_rates_a\n", adapter
->config_bands
);
301 k
= mwifiex_copy_rates(rates
, k
, supported_rates_a
,
302 sizeof(supported_rates_a
));
304 case BAND_A
| BAND_AN
:
305 case BAND_A
| BAND_G
| BAND_AN
| BAND_GN
:
306 dev_dbg(adapter
->dev
, "info: infra band=%d "
307 "supported_rates_a\n", adapter
->config_bands
);
308 k
= mwifiex_copy_rates(rates
, k
, supported_rates_a
,
309 sizeof(supported_rates_a
));
312 dev_dbg(adapter
->dev
, "info: infra band=%d "
313 "supported_rates_n\n", adapter
->config_bands
);
314 k
= mwifiex_copy_rates(rates
, k
, supported_rates_n
,
315 sizeof(supported_rates_n
));
320 switch (adapter
->adhoc_start_band
) {
322 dev_dbg(adapter
->dev
, "info: adhoc B\n");
323 k
= mwifiex_copy_rates(rates
, k
, adhoc_rates_b
,
324 sizeof(adhoc_rates_b
));
327 case BAND_G
| BAND_GN
:
328 dev_dbg(adapter
->dev
, "info: adhoc G only\n");
329 k
= mwifiex_copy_rates(rates
, k
, adhoc_rates_g
,
330 sizeof(adhoc_rates_g
));
332 case BAND_B
| BAND_G
:
333 case BAND_B
| BAND_G
| BAND_GN
:
334 dev_dbg(adapter
->dev
, "info: adhoc BG\n");
335 k
= mwifiex_copy_rates(rates
, k
, adhoc_rates_bg
,
336 sizeof(adhoc_rates_bg
));
339 case BAND_A
| BAND_AN
:
340 dev_dbg(adapter
->dev
, "info: adhoc A\n");
341 k
= mwifiex_copy_rates(rates
, k
, adhoc_rates_a
,
342 sizeof(adhoc_rates_a
));