release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/net/wireless/b43/lo.h

   1 #ifndef B43_LO_H_
   2 #define B43_LO_H_
   3
   4 /* G-PHY Local Oscillator */
   5
   6 #include "phy_g.h"
   7
   8 struct b43_wldev;
   9
  10 /* Local Oscillator control value-pair. */
  11 struct b43_loctl {
  12         /* Control values. */
  13         s8 i;
  14         s8 q;
  15 };
  16 /* Debugging: Poison value for i and q values. */
  17 #define B43_LOCTL_POISON        111
  18
  19 /* This struct holds calibrated LO settings for a set of
  20  * Baseband and RF attenuation settings. */
  21 struct b43_lo_calib {
  22         /* The set of attenuation values this set of LO
  23          * control values is calibrated for. */
  24         struct b43_bbatt bbatt;
  25         struct b43_rfatt rfatt;
  26         /* The set of control values for the LO. */
  27         struct b43_loctl ctl;
  28         /* The time when these settings were calibrated (in jiffies) */
  29         unsigned long calib_time;
  30         /* List. */
  31         struct list_head list;
  32 };
  33
  34 /* Size of the DC Lookup Table in 16bit words. */
  35 #define B43_DC_LT_SIZE          32
  36
  37 /* Local Oscillator calibration information */
  38 struct b43_txpower_lo_control {
  39         /* Lists of RF and BB attenuation values for this device.
  40          * Used for building hardware power control tables. */
  41         struct b43_rfatt_list rfatt_list;
  42         struct b43_bbatt_list bbatt_list;
  43
  44         /* The DC Lookup Table is cached in memory here.
  45          * Note that this is only used for Hardware Power Control. */
  46         u16 dc_lt[B43_DC_LT_SIZE];
  47
  48         /* List of calibrated control values (struct b43_lo_calib). */
  49         struct list_head calib_list;
  50         /* Last time the power vector was read (jiffies). */
  51         unsigned long pwr_vec_read_time;
  52         /* Last time the txctl values were measured (jiffies). */
  53         unsigned long txctl_measured_time;
  54
  55         /* Current TX Bias value */
  56         u8 tx_bias;
  57         /* Current TX Magnification Value (if used by the device) */
  58         u8 tx_magn;
  59
  60         /* Saved device PowerVector */
  61         u64 power_vector;
  62 };
  63
  64 /* Calibration expire timeouts.
  65  * Timeouts must be multiple of 15 seconds. To make sure
  66  * the item really expired when the 15 second timer hits, we
  67  * subtract two additional seconds from the timeout. */
  68 #define B43_LO_CALIB_EXPIRE     (HZ * (30 - 2))
  69 #define B43_LO_PWRVEC_EXPIRE    (HZ * (30 - 2))
  70 #define B43_LO_TXCTL_EXPIRE     (HZ * (180 - 4))
  71
  72
  73 /* Adjust the Local Oscillator to the saved attenuation
  74  * and txctl values.
  75  */
  76 void b43_lo_g_adjust(struct b43_wldev *dev);
  77 /* Adjust to specific values. */
  78 void b43_lo_g_adjust_to(struct b43_wldev *dev,
  79                         u16 rfatt, u16 bbatt, u16 tx_control);
  80
  81 void b43_gphy_dc_lt_init(struct b43_wldev *dev, bool update_all);
  82
  83 void b43_lo_g_maintanance_work(struct b43_wldev *dev);
  84 void b43_lo_g_cleanup(struct b43_wldev *dev);
  85 void b43_lo_g_init(struct b43_wldev *dev);
  86
  87 #endif /* B43_LO_H_ */