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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-21 04:43:29 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-21 04:43:29 +0400 |
commit | db6d8c7a4027b48d797b369a53f8470aaeed7063 (patch) | |
tree | e140c104a89abc2154e1f41a7db8ebecbb6fa0b4 /drivers/net/wireless/b43/lo.h | |
parent | 3a533374283aea50eab3976d8a6d30532175f009 (diff) | |
parent | fb65a7c091529bfffb1262515252c0d0f6241c5c (diff) | |
download | linux-db6d8c7a4027b48d797b369a53f8470aaeed7063.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (1232 commits)
iucv: Fix bad merging.
net_sched: Add size table for qdiscs
net_sched: Add accessor function for packet length for qdiscs
net_sched: Add qdisc_enqueue wrapper
highmem: Export totalhigh_pages.
ipv6 mcast: Omit redundant address family checks in ip6_mc_source().
net: Use standard structures for generic socket address structures.
ipv6 netns: Make several "global" sysctl variables namespace aware.
netns: Use net_eq() to compare net-namespaces for optimization.
ipv6: remove unused macros from net/ipv6.h
ipv6: remove unused parameter from ip6_ra_control
tcp: fix kernel panic with listening_get_next
tcp: Remove redundant checks when setting eff_sacks
tcp: options clean up
tcp: Fix MD5 signatures for non-linear skbs
sctp: Update sctp global memory limit allocations.
sctp: remove unnecessary byteshifting, calculate directly in big-endian
sctp: Allow only 1 listening socket with SO_REUSEADDR
sctp: Do not leak memory on multiple listen() calls
sctp: Support ipv6only AF_INET6 sockets.
...
Diffstat (limited to 'drivers/net/wireless/b43/lo.h')
-rw-r--r-- | drivers/net/wireless/b43/lo.h | 115 |
1 files changed, 44 insertions, 71 deletions
diff --git a/drivers/net/wireless/b43/lo.h b/drivers/net/wireless/b43/lo.h index 455615d1f8c6..1da321cabc12 100644 --- a/drivers/net/wireless/b43/lo.h +++ b/drivers/net/wireless/b43/lo.h @@ -10,82 +10,63 @@ struct b43_loctl { /* Control values. */ s8 i; s8 q; - /* "Used by hardware" flag. */ - bool used; -#ifdef CONFIG_B43_DEBUG - /* Is this lo-control-array entry calibrated? */ - bool calibrated; -#endif }; - /* Debugging: Poison value for i and q values. */ #define B43_LOCTL_POISON 111 -/* loctl->calibrated debugging mechanism */ -#ifdef CONFIG_B43_DEBUG -static inline void b43_loctl_set_calibrated(struct b43_loctl *loctl, - bool calibrated) -{ - loctl->calibrated = calibrated; -} -static inline bool b43_loctl_is_calibrated(struct b43_loctl *loctl) -{ - return loctl->calibrated; -} -#else -static inline void b43_loctl_set_calibrated(struct b43_loctl *loctl, - bool calibrated) -{ -} -static inline bool b43_loctl_is_calibrated(struct b43_loctl *loctl) -{ - return 1; -} -#endif - -/* TX Power LO Control Array. - * Value-pairs to adjust the LocalOscillator are stored - * in this structure. - * There are two different set of values. One for "Flag is Set" - * and one for "Flag is Unset". - * By "Flag" the flag in struct b43_rfatt is meant. - * The Value arrays are two-dimensional. The first index - * is the baseband attenuation and the second index - * is the radio attenuation. - * Use b43_get_lo_g_ctl() to retrieve a value from the lists. - */ +/* This struct holds calibrated LO settings for a set of + * Baseband and RF attenuation settings. */ +struct b43_lo_calib { + /* The set of attenuation values this set of LO + * control values is calibrated for. */ + struct b43_bbatt bbatt; + struct b43_rfatt rfatt; + /* The set of control values for the LO. */ + struct b43_loctl ctl; + /* The time when these settings were calibrated (in jiffies) */ + unsigned long calib_time; + /* List. */ + struct list_head list; +}; + +/* Size of the DC Lookup Table in 16bit words. */ +#define B43_DC_LT_SIZE 32 + +/* Local Oscillator calibration information */ struct b43_txpower_lo_control { -#define B43_NR_BB 12 -#define B43_NR_RF 16 - /* LO Control values, with PAD Mixer */ - struct b43_loctl with_padmix[B43_NR_BB][B43_NR_RF]; - /* LO Control values, without PAD Mixer */ - struct b43_loctl no_padmix[B43_NR_BB][B43_NR_RF]; - - /* Flag to indicate a complete rebuild of the two tables above - * to the LO measuring code. */ - bool rebuild; - - /* Lists of valid RF and BB attenuation values for this device. */ + /* Lists of RF and BB attenuation values for this device. + * Used for building hardware power control tables. */ struct b43_rfatt_list rfatt_list; struct b43_bbatt_list bbatt_list; + /* The DC Lookup Table is cached in memory here. + * Note that this is only used for Hardware Power Control. */ + u16 dc_lt[B43_DC_LT_SIZE]; + + /* List of calibrated control values (struct b43_lo_calib). */ + struct list_head calib_list; + /* Last time the power vector was read (jiffies). */ + unsigned long pwr_vec_read_time; + /* Last time the txctl values were measured (jiffies). */ + unsigned long txctl_measured_time; + /* Current TX Bias value */ u8 tx_bias; /* Current TX Magnification Value (if used by the device) */ u8 tx_magn; - /* GPHY LO is measured. */ - bool lo_measured; - /* Saved device PowerVector */ u64 power_vector; }; -/* Measure the BPHY Local Oscillator. */ -void b43_lo_b_measure(struct b43_wldev *dev); -/* Measure the BPHY/GPHY Local Oscillator. */ -void b43_lo_g_measure(struct b43_wldev *dev); +/* Calibration expire timeouts. + * Timeouts must be multiple of 15 seconds. To make sure + * the item really expired when the 15 second timer hits, we + * subtract two additional seconds from the timeout. */ +#define B43_LO_CALIB_EXPIRE (HZ * (30 - 2)) +#define B43_LO_PWRVEC_EXPIRE (HZ * (30 - 2)) +#define B43_LO_TXCTL_EXPIRE (HZ * (180 - 4)) + /* Adjust the Local Oscillator to the saved attenuation * and txctl values. @@ -95,18 +76,10 @@ void b43_lo_g_adjust(struct b43_wldev *dev); void b43_lo_g_adjust_to(struct b43_wldev *dev, u16 rfatt, u16 bbatt, u16 tx_control); -/* Mark all possible b43_lo_g_ctl as "unused" */ -void b43_lo_g_ctl_mark_all_unused(struct b43_wldev *dev); -/* Mark the b43_lo_g_ctl corresponding to the current - * attenuation values as used. - */ -void b43_lo_g_ctl_mark_cur_used(struct b43_wldev *dev); +void b43_gphy_dc_lt_init(struct b43_wldev *dev, bool update_all); -/* Get a reference to a LO Control value pair in the - * TX Power LO Control Array. - */ -struct b43_loctl *b43_get_lo_g_ctl(struct b43_wldev *dev, - const struct b43_rfatt *rfatt, - const struct b43_bbatt *bbatt); +void b43_lo_g_maintanance_work(struct b43_wldev *dev); +void b43_lo_g_cleanup(struct b43_wldev *dev); +void b43_lo_g_init(struct b43_wldev *dev); #endif /* B43_LO_H_ */ |