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 };
74 struct region_code_mapping {
76 u8 region[IEEE80211_COUNTRY_STRING_LEN];
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 */
90 /* This function converts integer code to region string */
91 u8 *mwifiex_11d_code_2_region(u8 code)
94 u8 size = sizeof(region_code_mapping_t)/
95 sizeof(struct region_code_mapping);
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;
106 * This function maps an index in supported rates table into
107 * the corresponding data rate.
109 u32 mwifiex_index_to_data_rate(struct mwifiex_private *priv, u8 index,
113 * For every mcs_rate line, the first 8 bytes are for stream 1x1,
114 * and all 16 bytes are for stream 2x2.
116 u16 mcs_rate[4][16] = {
118 { 0x1b, 0x36, 0x51, 0x6c, 0xa2, 0xd8, 0xf3, 0x10e,
119 0x36, 0x6c, 0xa2, 0xd8, 0x144, 0x1b0, 0x1e6, 0x21c },
122 { 0x1e, 0x3c, 0x5a, 0x78, 0xb4, 0xf0, 0x10e, 0x12c,
123 0x3c, 0x78, 0xb4, 0xf0, 0x168, 0x1e0, 0x21c, 0x258 },
126 { 0x0d, 0x1a, 0x27, 0x34, 0x4e, 0x68, 0x75, 0x82,
127 0x1a, 0x34, 0x4e, 0x68, 0x9c, 0xd0, 0xea, 0x104 },
130 { 0x0e, 0x1c, 0x2b, 0x39, 0x56, 0x73, 0x82, 0x90,
131 0x1c, 0x39, 0x56, 0x73, 0xad, 0xe7, 0x104, 0x120 }
134 (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) ? 16 : 8;
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 */
142 rate = 0x0C; /* MCS 32 LGI rate */
143 } else if (index < mcs_num_supp) {
144 if (ht_info & BIT(1)) {
145 if (ht_info & BIT(2))
147 rate = mcs_rate[1][index];
150 rate = mcs_rate[0][index];
152 if (ht_info & BIT(2))
154 rate = mcs_rate[3][index];
157 rate = mcs_rate[2][index];
160 rate = mwifiex_data_rates[0];
162 if (index >= MWIFIEX_SUPPORTED_RATES_EXT)
164 rate = mwifiex_data_rates[index];
170 * This function returns the current active data rates.
172 * The result may vary depending upon connection status.
174 u32 mwifiex_get_active_data_rates(struct mwifiex_private *priv, u8 *rates)
176 if (!priv->media_connected)
177 return mwifiex_get_supported_rates(priv, rates);
179 return mwifiex_copy_rates(rates, 0,
180 priv->curr_bss_params.data_rates,
181 priv->curr_bss_params.num_of_rates);
185 * This function locates the Channel-Frequency-Power triplet based upon
186 * band and channel/frequency parameters.
188 struct mwifiex_chan_freq_power *
189 mwifiex_get_cfp(struct mwifiex_private *priv, u8 band, u16 channel, u32 freq)
191 struct mwifiex_chan_freq_power *cfp = NULL;
192 struct ieee80211_supported_band *sband;
193 struct ieee80211_channel *ch = NULL;
196 if (!channel && !freq)
199 if (mwifiex_band_to_radio_type(band) == HostCmd_SCAN_RADIO_TYPE_BG)
200 sband = priv->wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
202 sband = priv->wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
205 dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d\n",
210 for (i = 0; i < sband->n_channels; i++) {
211 ch = &sband->channels[i];
213 if (ch->flags & IEEE80211_CHAN_DISABLED)
217 if (ch->center_freq == freq)
220 /* find by valid channel*/
221 if (ch->hw_value == channel ||
222 channel == FIRST_VALID_CHANNEL)
226 if (i == sband->n_channels) {
227 dev_err(priv->adapter->dev, "%s: cannot find cfp by band %d"
228 " & channel=%d freq=%d\n", __func__, band, channel,
234 priv->cfp.channel = ch->hw_value;
235 priv->cfp.freq = ch->center_freq;
236 priv->cfp.max_tx_power = ch->max_power;
244 * This function checks if the data rate is set to auto.
247 mwifiex_is_rate_auto(struct mwifiex_private *priv)
252 for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates); i++)
253 if (priv->bitmap_rates[i])
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));