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));