package/kernel/mac80211/patches/rt2x00/982-rt2x00-add-rf-self-txdc-calibration.patch

   1 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
   2 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
   3 @@ -8331,6 +8331,58 @@ static void rt2800_init_rfcsr_5592(struc
   4         rt2800_led_open_drain_enable(rt2x00dev);
   5  }
   6
   7 +void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev)
   8 +{
   9 +       u8 rfb5r1_org, rfb7r1_org, rfvalue;
  10 +       u32 mac0518, mac051c, mac0528, mac052c;
  11 +       u8 i;
  12 +
  13 +       rt2x00_info(rt2x00dev, "RF Tx self calibration start\n");
  14 +       mac0518 = rt2800_register_read(rt2x00dev, RF_CONTROL0);
  15 +       mac051c = rt2800_register_read(rt2x00dev, RF_BYPASS0);
  16 +       mac0528 = rt2800_register_read(rt2x00dev, RF_CONTROL2);
  17 +       mac052c = rt2800_register_read(rt2x00dev, RF_BYPASS2);
  18 +
  19 +       rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x0);
  20 +       rt2800_register_write(rt2x00dev, RF_BYPASS2, 0x0);
  21 +
  22 +       rt2800_register_write(rt2x00dev, RF_CONTROL0, 0xC);
  23 +       rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x3306);
  24 +       rt2800_register_write(rt2x00dev, RF_CONTROL2, 0x3330);
  25 +       rt2800_register_write(rt2x00dev, RF_BYPASS2, 0xfffff);
  26 +       rfb5r1_org = rt2800_rfcsr_read_bank(rt2x00dev, 5, 1);
  27 +       rfb7r1_org = rt2800_rfcsr_read_bank(rt2x00dev, 7, 1);
  28 +
  29 +       rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, 0x4);
  30 +       for (i = 0; i < 100; i = i + 1) {
  31 +               udelay(50);
  32 +               rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 1);
  33 +               if((rfvalue & 0x04) != 0x4)
  34 +                       break;
  35 +       }
  36 +       rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, rfb5r1_org);
  37 +
  38 +       rt2800_rfcsr_write_bank(rt2x00dev, 7, 1, 0x4);
  39 +       for (i = 0; i < 100; i = i + 1) {
  40 +               udelay(50);
  41 +               rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 1);
  42 +               if((rfvalue & 0x04) != 0x4)
  43 +                       break;
  44 +       }
  45 +       rt2800_rfcsr_write_bank(rt2x00dev, 7, 1, rfb7r1_org);
  46 +
  47 +       rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x0);
  48 +       rt2800_register_write(rt2x00dev, RF_BYPASS2, 0x0);
  49 +       rt2800_register_write(rt2x00dev, RF_CONTROL0, mac0518);
  50 +       rt2800_register_write(rt2x00dev, RF_BYPASS0, mac051c);
  51 +       rt2800_register_write(rt2x00dev, RF_CONTROL2, mac0528);
  52 +       rt2800_register_write(rt2x00dev, RF_BYPASS2, mac052c);
  53 +
  54 +       rt2x00_info(rt2x00dev, "RF Tx self calibration end\n");
  55 +
  56 +}
  57 +EXPORT_SYMBOL_GPL(rt2800_rf_self_txdc_cal);
  58 +
  59  static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev,
  60                                        bool set_bw, bool is_ht40)
  61  {
  62 @@ -8956,6 +9008,7 @@ static void rt2800_init_rfcsr_6352(struc
  63         rt2800_rfcsr_write_dccal(rt2x00dev, 5, 0x00);
  64         rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x7C);
  65
  66 +       rt2800_rf_self_txdc_cal(rt2x00dev);
  67         rt2800_bw_filter_calibration(rt2x00dev, true);
  68         rt2800_bw_filter_calibration(rt2x00dev, false);
  69  }
  70 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
  71 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
  72 @@ -242,6 +242,7 @@ void rt2800_link_tuner(struct rt2x00_dev
  73                        const u32 count);
  74  void rt2800_gain_calibration(struct rt2x00_dev *rt2x00dev);
  75  void rt2800_vco_calibration(struct rt2x00_dev *rt2x00dev);
  76 +void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev);
  77
  78  int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev);
  79  void rt2800_disable_radio(struct rt2x00_dev *rt2x00dev);
  80 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  81 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
  82 @@ -572,6 +572,7 @@ struct rt2x00lib_ops {
  83                             struct link_qual *qual, const u32 count);
  84         void (*gain_calibration) (struct rt2x00_dev *rt2x00dev);
  85         void (*vco_calibration) (struct rt2x00_dev *rt2x00dev);
  86 +       void (*rf_self_txdc_cal) (struct rt2x00_dev *rt2x00dev);
  87
  88         /*
  89          * Data queue handlers.