1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. 4 * All rights reserved. 5 * 6 * File: channel.c 7 * 8 */ 9 10 #include "baseband.h" 11 #include "channel.h" 12 #include "device.h" 13 #include "rf.h" 14 15 static struct ieee80211_rate vnt_rates_bg[] = { 16 { .bitrate = 10, .hw_value = RATE_1M }, 17 { .bitrate = 20, .hw_value = RATE_2M }, 18 { .bitrate = 55, .hw_value = RATE_5M }, 19 { .bitrate = 110, .hw_value = RATE_11M }, 20 { .bitrate = 60, .hw_value = RATE_6M }, 21 { .bitrate = 90, .hw_value = RATE_9M }, 22 { .bitrate = 120, .hw_value = RATE_12M }, 23 { .bitrate = 180, .hw_value = RATE_18M }, 24 { .bitrate = 240, .hw_value = RATE_24M }, 25 { .bitrate = 360, .hw_value = RATE_36M }, 26 { .bitrate = 480, .hw_value = RATE_48M }, 27 { .bitrate = 540, .hw_value = RATE_54M }, 28 }; 29 30 static struct ieee80211_rate vnt_rates_a[] = { 31 { .bitrate = 60, .hw_value = RATE_6M }, 32 { .bitrate = 90, .hw_value = RATE_9M }, 33 { .bitrate = 120, .hw_value = RATE_12M }, 34 { .bitrate = 180, .hw_value = RATE_18M }, 35 { .bitrate = 240, .hw_value = RATE_24M }, 36 { .bitrate = 360, .hw_value = RATE_36M }, 37 { .bitrate = 480, .hw_value = RATE_48M }, 38 { .bitrate = 540, .hw_value = RATE_54M }, 39 }; 40 41 static struct ieee80211_channel vnt_channels_2ghz[] = { 42 { .center_freq = 2412, .hw_value = 1 }, 43 { .center_freq = 2417, .hw_value = 2 }, 44 { .center_freq = 2422, .hw_value = 3 }, 45 { .center_freq = 2427, .hw_value = 4 }, 46 { .center_freq = 2432, .hw_value = 5 }, 47 { .center_freq = 2437, .hw_value = 6 }, 48 { .center_freq = 2442, .hw_value = 7 }, 49 { .center_freq = 2447, .hw_value = 8 }, 50 { .center_freq = 2452, .hw_value = 9 }, 51 { .center_freq = 2457, .hw_value = 10 }, 52 { .center_freq = 2462, .hw_value = 11 }, 53 { .center_freq = 2467, .hw_value = 12 }, 54 { .center_freq = 2472, .hw_value = 13 }, 55 { .center_freq = 2484, .hw_value = 14 } 56 }; 57 58 static struct ieee80211_channel vnt_channels_5ghz[] = { 59 { .center_freq = 4915, .hw_value = 15 }, 60 { .center_freq = 4920, .hw_value = 16 }, 61 { .center_freq = 4925, .hw_value = 17 }, 62 { .center_freq = 4935, .hw_value = 18 }, 63 { .center_freq = 4940, .hw_value = 19 }, 64 { .center_freq = 4945, .hw_value = 20 }, 65 { .center_freq = 4960, .hw_value = 21 }, 66 { .center_freq = 4980, .hw_value = 22 }, 67 { .center_freq = 5035, .hw_value = 23 }, 68 { .center_freq = 5040, .hw_value = 24 }, 69 { .center_freq = 5045, .hw_value = 25 }, 70 { .center_freq = 5055, .hw_value = 26 }, 71 { .center_freq = 5060, .hw_value = 27 }, 72 { .center_freq = 5080, .hw_value = 28 }, 73 { .center_freq = 5170, .hw_value = 29 }, 74 { .center_freq = 5180, .hw_value = 30 }, 75 { .center_freq = 5190, .hw_value = 31 }, 76 { .center_freq = 5200, .hw_value = 32 }, 77 { .center_freq = 5210, .hw_value = 33 }, 78 { .center_freq = 5220, .hw_value = 34 }, 79 { .center_freq = 5230, .hw_value = 35 }, 80 { .center_freq = 5240, .hw_value = 36 }, 81 { .center_freq = 5260, .hw_value = 37 }, 82 { .center_freq = 5280, .hw_value = 38 }, 83 { .center_freq = 5300, .hw_value = 39 }, 84 { .center_freq = 5320, .hw_value = 40 }, 85 { .center_freq = 5500, .hw_value = 41 }, 86 { .center_freq = 5520, .hw_value = 42 }, 87 { .center_freq = 5540, .hw_value = 43 }, 88 { .center_freq = 5560, .hw_value = 44 }, 89 { .center_freq = 5580, .hw_value = 45 }, 90 { .center_freq = 5600, .hw_value = 46 }, 91 { .center_freq = 5620, .hw_value = 47 }, 92 { .center_freq = 5640, .hw_value = 48 }, 93 { .center_freq = 5660, .hw_value = 49 }, 94 { .center_freq = 5680, .hw_value = 50 }, 95 { .center_freq = 5700, .hw_value = 51 }, 96 { .center_freq = 5745, .hw_value = 52 }, 97 { .center_freq = 5765, .hw_value = 53 }, 98 { .center_freq = 5785, .hw_value = 54 }, 99 { .center_freq = 5805, .hw_value = 55 }, 100 { .center_freq = 5825, .hw_value = 56 } 101 }; 102 103 static struct ieee80211_supported_band vnt_supported_2ghz_band = { 104 .channels = vnt_channels_2ghz, 105 .n_channels = ARRAY_SIZE(vnt_channels_2ghz), 106 .bitrates = vnt_rates_bg, 107 .n_bitrates = ARRAY_SIZE(vnt_rates_bg), 108 }; 109 110 static struct ieee80211_supported_band vnt_supported_5ghz_band = { 111 .channels = vnt_channels_5ghz, 112 .n_channels = ARRAY_SIZE(vnt_channels_5ghz), 113 .bitrates = vnt_rates_a, 114 .n_bitrates = ARRAY_SIZE(vnt_rates_a), 115 }; 116 117 static void vnt_init_band(struct vnt_private *priv, 118 struct ieee80211_supported_band *supported_band, 119 enum nl80211_band band) 120 { 121 int i; 122 123 for (i = 0; i < supported_band->n_channels; i++) { 124 supported_band->channels[i].max_power = 0x3f; 125 supported_band->channels[i].flags = 126 IEEE80211_CHAN_NO_HT40; 127 } 128 129 priv->hw->wiphy->bands[band] = supported_band; 130 } 131 132 void vnt_init_bands(struct vnt_private *priv) 133 { 134 switch (priv->byRFType) { 135 case RF_AIROHA7230: 136 case RF_UW2452: 137 case RF_NOTHING: 138 default: 139 vnt_init_band(priv, &vnt_supported_5ghz_band, 140 NL80211_BAND_5GHZ); 141 fallthrough; 142 case RF_RFMD2959: 143 case RF_AIROHA: 144 case RF_AL2230S: 145 case RF_UW2451: 146 case RF_VT3226: 147 vnt_init_band(priv, &vnt_supported_2ghz_band, 148 NL80211_BAND_2GHZ); 149 break; 150 } 151 } 152 153 /** 154 * set_channel() - Set NIC media channel 155 * 156 * @priv: The adapter to be set 157 * @ch: Channel to be set 158 * 159 * Return Value: true if succeeded; false if failed. 160 * 161 */ 162 bool set_channel(struct vnt_private *priv, struct ieee80211_channel *ch) 163 { 164 bool ret = true; 165 166 if (priv->byCurrentCh == ch->hw_value) 167 return ret; 168 169 /* Set VGA to max sensitivity */ 170 if (priv->bUpdateBBVGA && 171 priv->byBBVGACurrent != priv->abyBBVGA[0]) { 172 priv->byBBVGACurrent = priv->abyBBVGA[0]; 173 174 bb_set_vga_gain_offset(priv, priv->byBBVGACurrent); 175 } 176 177 /* clear NAV */ 178 MACvRegBitsOn(priv->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV); 179 180 /* TX_PE will reserve 3 us for MAX2829 A mode only, 181 * it is for better TX throughput 182 */ 183 184 if (priv->byRFType == RF_AIROHA7230) 185 RFbAL7230SelectChannelPostProcess(priv, priv->byCurrentCh, 186 ch->hw_value); 187 188 priv->byCurrentCh = ch->hw_value; 189 ret &= RFbSelectChannel(priv, priv->byRFType, 190 ch->hw_value); 191 192 /* Init Synthesizer Table */ 193 if (priv->bEnablePSMode) 194 RFvWriteWakeProgSyn(priv, priv->byRFType, ch->hw_value); 195 196 bb_software_reset(priv); 197 198 if (priv->byLocalID > REV_ID_VT3253_B1) { 199 unsigned long flags; 200 201 spin_lock_irqsave(&priv->lock, flags); 202 203 /* set HW default power register */ 204 MACvSelectPage1(priv->PortOffset); 205 RFbSetPower(priv, RATE_1M, priv->byCurrentCh); 206 VNSvOutPortB(priv->PortOffset + MAC_REG_PWRCCK, 207 priv->byCurPwr); 208 RFbSetPower(priv, RATE_6M, priv->byCurrentCh); 209 VNSvOutPortB(priv->PortOffset + MAC_REG_PWROFDM, 210 priv->byCurPwr); 211 MACvSelectPage0(priv->PortOffset); 212 213 spin_unlock_irqrestore(&priv->lock, flags); 214 } 215 216 if (priv->byBBType == BB_TYPE_11B) 217 RFbSetPower(priv, RATE_1M, priv->byCurrentCh); 218 else 219 RFbSetPower(priv, RATE_6M, priv->byCurrentCh); 220 221 return ret; 222 } 223