package/mac80211/patches/313-rt2x00-Channel-HT40-fixes-rt2800usb.patch

   1 From c2288ea288283cea727dfa547339d245458071fc Mon Sep 17 00:00:00 2001
   2 From: Ivo van Doorn <IvDoorn@gmail.com>
   3 Date: Sun, 8 Feb 2009 00:09:22 +0100
   4 Subject: [PATCH] rt2x00: Channel HT40+/- fixes (rt2800usb)
   5
   6 Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
   7 ---
   8  drivers/net/wireless/rt2x00/rt2800usb.c |  107 ++++++++++++++++--------------
   9  drivers/net/wireless/rt2x00/rt2800usb.h |    5 +-
  10  2 files changed, 61 insertions(+), 51 deletions(-)
  11
  12 --- a/drivers/net/wireless/rt2x00/rt2800usb.c
  13 +++ b/drivers/net/wireless/rt2x00/rt2800usb.c
  14 @@ -641,7 +641,7 @@ static void rt2800usb_config_ant(struct
  15                 rt2x00_set_field8(&r3, BBP3_RX_ANTENNA, 0);
  16                 break;
  17         case 2:
  18 -               rt2x00_set_field8(&r1, BBP1_TX_ANTENNA, 16);
  19 +               rt2x00_set_field8(&r1, BBP1_TX_ANTENNA, 2);
  20                 break;
  21         case 3:
  22                 /* Do nothing */
  23 @@ -691,6 +691,7 @@ static void rt2800usb_config_lna_gain(st
  24  }
  25
  26  static void rt2800usb_config_channel_rt2x(struct rt2x00_dev *rt2x00dev,
  27 +                                         struct ieee80211_conf *conf,
  28                                           struct rf_channel *rf,
  29                                           struct channel_info *info)
  30  {
  31 @@ -702,6 +703,7 @@ static void rt2800usb_config_channel_rt2
  32          * Determine antenna settings from EEPROM
  33          */
  34         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
  35 +
  36         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TXPATH) == 1)
  37                 rt2x00_set_field32(&rf->rf2, RF2_ANTENNA_TX1, 1);
  38
  39 @@ -742,8 +744,7 @@ static void rt2800usb_config_channel_rt2
  40                                    TXPOWER_G_TO_DEV(info->tx_power2));
  41         }
  42
  43 -       rt2x00_set_field32(&rf->rf4, RF4_BW40,
  44 -                          test_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags));
  45 +       rt2x00_set_field32(&rf->rf4, RF4_HT40, conf_is_ht40(conf));
  46
  47         rt2800usb_rf_write(rt2x00dev, 1, rf->rf1);
  48         rt2800usb_rf_write(rt2x00dev, 2, rf->rf2);
  49 @@ -766,6 +767,7 @@ static void rt2800usb_config_channel_rt2
  50  }
  51
  52  static void rt2800usb_config_channel_rt3x(struct rt2x00_dev *rt2x00dev,
  53 +                                         struct ieee80211_conf *conf,
  54                                           struct rf_channel *rf,
  55                                           struct channel_info *info)
  56  {
  57 @@ -787,10 +789,12 @@ static void rt2800usb_config_channel_rt3
  58         rt2x00_set_field8(&rfcsr, RFCSR23_FREQ_OFFSET, rt2x00dev->freq_offset);
  59         rt2800usb_rfcsr_write(rt2x00dev, 23, rfcsr);
  60
  61 -       if (test_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags))
  62 -               rt2800usb_rfcsr_write(rt2x00dev, 24, rt2x00dev->calibration_bw40);
  63 +       if (conf_is_ht40(conf))
  64 +               rt2800usb_rfcsr_write(rt2x00dev, 24,
  65 +                                     rt2x00dev->calibration_bw40);
  66         else
  67 -               rt2800usb_rfcsr_write(rt2x00dev, 24, rt2x00dev->calibration_bw20);
  68 +               rt2800usb_rfcsr_write(rt2x00dev, 24,
  69 +                                     rt2x00dev->calibration_bw20);
  70
  71         rt2800usb_rfcsr_read(rt2x00dev, 23, &rfcsr);
  72         rt2x00_set_field8(&rfcsr, RFCSR7_RF_TUNING, 1);
  73 @@ -798,46 +802,24 @@ static void rt2800usb_config_channel_rt3
  74  }
  75
  76  static void rt2800usb_config_channel(struct rt2x00_dev *rt2x00dev,
  77 +                                    struct ieee80211_conf *conf,
  78                                      struct rf_channel *rf,
  79                                      struct channel_info *info)
  80  {
  81         u32 reg;
  82         unsigned int tx_pin;
  83         u16 eeprom;
  84 +       u8 bbp;
  85
  86 -       if (rt2x00_rev(&rt2x00dev->chip) != RT3070_VERSION)
  87 -               rt2800usb_config_channel_rt2x(rt2x00dev, rf, info);
  88 -       else
  89 -               rt2800usb_config_channel_rt3x(rt2x00dev, rf, info);
  90 -
  91 -       tx_pin = 0;
  92 -       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G1_EN, 1);
  93 -       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A0_EN, 1);
  94 -       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G0_EN, 1);
  95 -       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A1_EN, 1);
  96 -       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G1_EN, 1);
  97 -       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_RFTR_EN, 1);
  98 -       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_TRSW_EN, 1);
  99 -
 100 +       /*
 101 +        * Determine antenna settings from EEPROM
 102 +        */
 103         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
 104
 105 -       /* Turn off unused PA or LNA when only 1T or 1R */
 106 -       if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TXPATH) == 1) {
 107 -
 108 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A1_EN, 0);
 109 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G1_EN, 0);
 110 -       }
 111 -
 112 -       /* Turn off unused PA or LNA when only 1T or 1R */
 113 -       if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RXPATH) == 1) {
 114 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A1_EN, 0);
 115 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G1_EN, 0);
 116 -       }
 117 -
 118 -       if (rf->channel > 14)
 119 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A0_EN, 1);
 120 +       if (rt2x00_rev(&rt2x00dev->chip) != RT3070_VERSION)
 121 +               rt2800usb_config_channel_rt2x(rt2x00dev, conf, rf, info);
 122         else
 123 -               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN, 1);
 124 +               rt2800usb_config_channel_rt3x(rt2x00dev, conf, rf, info);
 125
 126         /*
 127          * Change BBP settings
 128 @@ -855,11 +837,6 @@ static void rt2800usb_config_channel(str
 129                         rt2800usb_bbp_write(rt2x00dev, 82, 0x84);
 130                         rt2800usb_bbp_write(rt2x00dev, 75, 0x50);
 131                 }
 132 -
 133 -               rt2x00usb_register_read(rt2x00dev, TX_BAND_CFG, &reg);
 134 -               rt2x00_set_field32(&rf->rf3, TX_BAND_CFG_A, 0);
 135 -               rt2x00_set_field32(&rf->rf3, TX_BAND_CFG_BG, 1);
 136 -               rt2x00usb_register_write(rt2x00dev, TX_BAND_CFG, reg);
 137         } else {
 138                 rt2800usb_bbp_write(rt2x00dev, 82, 0xf2);
 139
 140 @@ -867,15 +844,45 @@ static void rt2800usb_config_channel(str
 141                         rt2800usb_bbp_write(rt2x00dev, 75, 0x46);
 142                 else
 143                         rt2800usb_bbp_write(rt2x00dev, 75, 0x50);
 144 +       }
 145 +
 146 +       rt2x00usb_register_read(rt2x00dev, TX_BAND_CFG, &reg);
 147 +       rt2x00_set_field32(&reg, TX_BAND_CFG_HT40_PLUS, conf_is_ht40_plus(conf));
 148 +       rt2x00_set_field32(&reg, TX_BAND_CFG_A, rf->channel > 14);
 149 +       rt2x00_set_field32(&reg, TX_BAND_CFG_BG, rf->channel <= 14);
 150 +       rt2x00usb_register_write(rt2x00dev, TX_BAND_CFG, reg);
 151 +
 152 +       tx_pin = 0;
 153 +
 154 +       /* Turn on unused PA or LNA when not using 1T or 1R */
 155 +       if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TXPATH) != 1) {
 156 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A1_EN, 1);
 157 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G1_EN, 1);
 158 +       }
 159
 160 -               rt2x00usb_register_read(rt2x00dev, TX_BAND_CFG, &reg);
 161 -               rt2x00_set_field32(&rf->rf3, TX_BAND_CFG_A, 1);
 162 -               rt2x00_set_field32(&rf->rf3, TX_BAND_CFG_BG, 0);
 163 -               rt2x00usb_register_write(rt2x00dev, TX_BAND_CFG, reg);
 164 +       /* Turn on unused PA or LNA when not using 1T or 1R */
 165 +       if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RXPATH) != 1) {
 166 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A1_EN, 1);
 167 +               rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G1_EN, 1);
 168         }
 169
 170 +       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A0_EN, 1);
 171 +       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G0_EN, 1);
 172 +       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_RFTR_EN, 1);
 173 +       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_TRSW_EN, 1);
 174 +       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN, rf->channel <= 14);
 175 +       rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A0_EN, rf->channel > 14);
 176 +
 177         rt2x00usb_register_write(rt2x00dev, TX_PIN_CFG, tx_pin);
 178
 179 +       rt2800usb_bbp_read(rt2x00dev, 4, &bbp);
 180 +       rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2 * conf_is_ht40(conf));
 181 +       rt2800usb_bbp_write(rt2x00dev, 4, bbp);
 182 +
 183 +       rt2800usb_bbp_read(rt2x00dev, 3, &bbp);
 184 +       rt2x00_set_field8(&bbp, BBP3_HT40_PLUS, conf_is_ht40_plus(conf));
 185 +       rt2800usb_bbp_write(rt2x00dev, 3, bbp);
 186 +
 187         msleep(1);
 188  }
 189
 190 @@ -1008,8 +1015,8 @@ static void rt2800usb_config(struct rt2x
 191         rt2800usb_config_lna_gain(rt2x00dev, libconf);
 192
 193         if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
 194 -               rt2800usb_config_channel(rt2x00dev, &libconf->rf,
 195 -                                        &libconf->channel);
 196 +               rt2800usb_config_channel(rt2x00dev, libconf->conf,
 197 +                                        &libconf->rf, &libconf->channel);
 198         if (flags & IEEE80211_CONF_CHANGE_POWER)
 199                 rt2800usb_config_txpower(rt2x00dev, libconf->conf->power_level);
 200         if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
 201 @@ -1643,7 +1650,7 @@ static u8 rt2800usb_init_rx_filter(struc
 202
 203         if (bw40) {
 204                 rt2800usb_bbp_read(rt2x00dev, 4, &bbp);
 205 -               rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 0x10);
 206 +               rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2);
 207                 rt2800usb_bbp_write(rt2x00dev, 4, bbp);
 208         }
 209
 210 @@ -2777,14 +2784,14 @@ static const struct rt2x00lib_ops rt2800
 211
 212  static const struct data_queue_desc rt2800usb_queue_rx = {
 213         .entry_num              = RX_ENTRIES,
 214 -       .data_size              = DATA_FRAME_SIZE,
 215 +       .data_size              = AGGREGATION_SIZE,
 216         .desc_size              = RXD_DESC_SIZE + RXWI_DESC_SIZE,
 217         .priv_size              = sizeof(struct queue_entry_priv_usb),
 218  };
 219
 220  static const struct data_queue_desc rt2800usb_queue_tx = {
 221         .entry_num              = TX_ENTRIES,
 222 -       .data_size              = DATA_FRAME_SIZE,
 223 +       .data_size              = AGGREGATION_SIZE,
 224         .desc_size              = TXINFO_DESC_SIZE + TXWI_DESC_SIZE,
 225         .priv_size              = sizeof(struct queue_entry_priv_usb),
 226  };
 227 --- a/drivers/net/wireless/rt2x00/rt2800usb.h
 228 +++ b/drivers/net/wireless/rt2x00/rt2800usb.h
 229 @@ -803,6 +803,7 @@
 230   * TX_BAND_CFG: 0x1 use upper 20MHz, 0x0 use lower 20MHz
 231   */
 232  #define TX_BAND_CFG                    0x132c
 233 +#define TX_BAND_CFG_HT40_PLUS          FIELD32(0x00000001)
 234  #define TX_BAND_CFG_A                  FIELD32(0x00000002)
 235  #define TX_BAND_CFG_BG                 FIELD32(0x00000004)
 236
 237 @@ -1482,10 +1483,12 @@ struct mac_iveiv_entry {
 238   * BBP 3: RX Antenna
 239   */
 240  #define BBP3_RX_ANTENNA                        FIELD8(0x18)
 241 +#define BBP3_HT40_PLUS                 FIELD8(0x20)
 242
 243  /*
 244   * BBP 4: Bandwidth
 245   */
 246 +#define BBP4_TX_BF                     FIELD8(0x01)
 247  #define BBP4_BANDWIDTH                 FIELD8(0x18)
 248
 249  /*
 250 @@ -1548,7 +1551,7 @@ struct mac_iveiv_entry {
 251  #define RF4_TXPOWER_A_7DBM_BOOST       FIELD32(0x00000040)
 252  #define RF4_TXPOWER_A                  FIELD32(0x00000780)
 253  #define RF4_FREQ_OFFSET                        FIELD32(0x001f8000)
 254 -#define RF4_BW40                       FIELD32(0x00200000)
 255 +#define RF4_HT40                       FIELD32(0x00200000)
 256
 257  /*
 258   * EEPROM content.