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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 13static 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 28static 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 45static 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 52static 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 67void 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 channel74 *75 * @priv: The adapter to be set76 * @ch: Channel to be set77 *78 * Return Value: true if succeeded; false if failed.79 *80 */81bool set_channel(struct vnt_private *priv, struct ieee80211_channel *ch)82{83 bool ret = true;84 85 if (priv->current_ch == ch->hw_value)86 return ret;87 88 /* Set VGA to max sensitivity */89 if (priv->update_bbvga &&90 priv->bbvga_current != priv->bbvga[0]) {91 priv->bbvga_current = priv->bbvga[0];92 93 bb_set_vga_gain_offset(priv, priv->bbvga_current);94 }95 96 /* clear NAV */97 vt6655_mac_reg_bits_on(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 throughput101 */102 103 priv->current_ch = ch->hw_value;104 ret &= RFbSelectChannel(priv, priv->rf_type,105 ch->hw_value);106 107 /* Init Synthesizer Table */108 if (priv->bEnablePSMode)109 rf_write_wake_prog_syn(priv, priv->rf_type, 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 VT6655_MAC_SELECT_PAGE1(priv->port_offset);120 RFbSetPower(priv, RATE_1M, priv->current_ch);121 iowrite8(priv->cur_pwr, priv->port_offset + MAC_REG_PWRCCK);122 RFbSetPower(priv, RATE_6M, priv->current_ch);123 iowrite8(priv->cur_pwr, priv->port_offset + MAC_REG_PWROFDM);124 VT6655_MAC_SELECT_PAGE0(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->current_ch);131 else132 RFbSetPower(priv, RATE_6M, priv->current_ch);133 134 return ret;135}136