1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. 4 * All rights reserved. 5 * 6 */ 7 8 #include "baseband.h" 9 #include "channel.h" 10 #include "device.h" 11 #include "rf.h" 12 13 static struct ieee80211_rate vnt_rates_bg[] = { 14 { .bitrate = 10, .hw_value = RATE_1M }, 15 { .bitrate = 20, .hw_value = RATE_2M }, 16 { .bitrate = 55, .hw_value = RATE_5M }, 17 { .bitrate = 110, .hw_value = RATE_11M }, 18 { .bitrate = 60, .hw_value = RATE_6M }, 19 { .bitrate = 90, .hw_value = RATE_9M }, 20 { .bitrate = 120, .hw_value = RATE_12M }, 21 { .bitrate = 180, .hw_value = RATE_18M }, 22 { .bitrate = 240, .hw_value = RATE_24M }, 23 { .bitrate = 360, .hw_value = RATE_36M }, 24 { .bitrate = 480, .hw_value = RATE_48M }, 25 { .bitrate = 540, .hw_value = RATE_54M }, 26 }; 27 28 static struct ieee80211_channel vnt_channels_2ghz[] = { 29 { .center_freq = 2412, .hw_value = 1 }, 30 { .center_freq = 2417, .hw_value = 2 }, 31 { .center_freq = 2422, .hw_value = 3 }, 32 { .center_freq = 2427, .hw_value = 4 }, 33 { .center_freq = 2432, .hw_value = 5 }, 34 { .center_freq = 2437, .hw_value = 6 }, 35 { .center_freq = 2442, .hw_value = 7 }, 36 { .center_freq = 2447, .hw_value = 8 }, 37 { .center_freq = 2452, .hw_value = 9 }, 38 { .center_freq = 2457, .hw_value = 10 }, 39 { .center_freq = 2462, .hw_value = 11 }, 40 { .center_freq = 2467, .hw_value = 12 }, 41 { .center_freq = 2472, .hw_value = 13 }, 42 { .center_freq = 2484, .hw_value = 14 } 43 }; 44 45 static struct ieee80211_supported_band vnt_supported_2ghz_band = { 46 .channels = vnt_channels_2ghz, 47 .n_channels = ARRAY_SIZE(vnt_channels_2ghz), 48 .bitrates = vnt_rates_bg, 49 .n_bitrates = ARRAY_SIZE(vnt_rates_bg), 50 }; 51 52 static void vnt_init_band(struct vnt_private *priv, 53 struct ieee80211_supported_band *supported_band, 54 enum nl80211_band band) 55 { 56 int i; 57 58 for (i = 0; i < supported_band->n_channels; i++) { 59 supported_band->channels[i].max_power = 0x3f; 60 supported_band->channels[i].flags = 61 IEEE80211_CHAN_NO_HT40; 62 } 63 64 priv->hw->wiphy->bands[band] = supported_band; 65 } 66 67 void vnt_init_bands(struct vnt_private *priv) 68 { 69 vnt_init_band(priv, &vnt_supported_2ghz_band, NL80211_BAND_2GHZ); 70 } 71 72 /** 73 * set_channel() - Set NIC media channel 74 * 75 * @priv: The adapter to be set 76 * @ch: Channel to be set 77 * 78 * Return Value: true if succeeded; false if failed. 79 * 80 */ 81 bool set_channel(struct vnt_private *priv, struct ieee80211_channel *ch) 82 { 83 bool ret = true; 84 85 if (priv->byCurrentCh == ch->hw_value) 86 return ret; 87 88 /* Set VGA to max sensitivity */ 89 if (priv->bUpdateBBVGA && 90 priv->byBBVGACurrent != priv->abyBBVGA[0]) { 91 priv->byBBVGACurrent = priv->abyBBVGA[0]; 92 93 bb_set_vga_gain_offset(priv, priv->byBBVGACurrent); 94 } 95 96 /* clear NAV */ 97 MACvRegBitsOn(priv->port_offset, MAC_REG_MACCR, MACCR_CLRNAV); 98 99 /* TX_PE will reserve 3 us for MAX2829 A mode only, 100 * it is for better TX throughput 101 */ 102 103 priv->byCurrentCh = ch->hw_value; 104 ret &= RFbSelectChannel(priv, priv->byRFType, 105 ch->hw_value); 106 107 /* Init Synthesizer Table */ 108 if (priv->bEnablePSMode) 109 rf_write_wake_prog_syn(priv, priv->byRFType, ch->hw_value); 110 111 bb_software_reset(priv); 112 113 if (priv->local_id > REV_ID_VT3253_B1) { 114 unsigned long flags; 115 116 spin_lock_irqsave(&priv->lock, flags); 117 118 /* set HW default power register */ 119 MACvSelectPage1(priv->port_offset); 120 RFbSetPower(priv, RATE_1M, priv->byCurrentCh); 121 iowrite8(priv->byCurPwr, priv->port_offset + MAC_REG_PWRCCK); 122 RFbSetPower(priv, RATE_6M, priv->byCurrentCh); 123 iowrite8(priv->byCurPwr, priv->port_offset + MAC_REG_PWROFDM); 124 MACvSelectPage0(priv->port_offset); 125 126 spin_unlock_irqrestore(&priv->lock, flags); 127 } 128 129 if (priv->byBBType == BB_TYPE_11B) 130 RFbSetPower(priv, RATE_1M, priv->byCurrentCh); 131 else 132 RFbSetPower(priv, RATE_6M, priv->byCurrentCh); 133 134 return ret; 135 } 136