On Thursday 03 June 2010 19:33:45 Ray wrote: > Hi developers, > > My question is how can I make use of the ATH5K registers to obtain clock > values of the wireless interface? I looked at some of the registers that I > suspect will give me the clock value i.e. AR5K_PHY_TIMING, AR5K_PLL_44MHZ, > AR5K_EEPROM_CFG_CLK_RATE but as I was tracing the codes, I decided to try > checking it with everyone on this list before I proceed further. I would > like to know if anyone has experience doing similar thing and also if > anyone know whats the finest clock resolution given by these registers (is > it in usec or nsec range?).
you can read the TSF. it is in usecs. it is a 64 bit value and the upper 32 bits are found in the register AR5K_TSF_U32 and the lower in AR5K_TSF_L32. there is a function to get the 64bit TSF, which takes care of combining the values from both registers: u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah); bruno _______________________________________________ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
