dev/wpi/if_wpi.c

526 		device_printf(dev, "chip is in D%d power mode "
627 		| IEEE80211_C_TXPMGT		/* tx power management */
2176 	/* read the power level calibration info for each group */
2477 	/* configuration has changed, set Tx power accordingly */
2479 		device_printf(sc->sc_dev, "could not set Tx power\n");
2789 	struct wpi_power power;
2794 	/* set power mode */
2795 	memset(&power, 0, sizeof power);
2796 	power.flags = htole32(WPI_POWER_CAM|0x8);
2797 	error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0);
2799 		device_printf(sc->sc_dev, "could not set power mode\n");
2860 	/* configuration has changed, set Tx power accordingly */
2862 	    device_printf(sc->sc_dev, "could not set Tx power\n");
2930 		    "timeout waiting for NIC to power up\n");
3260  * power to temperature changes.
3279 	/* adjust Tx power if need be */
3287 		device_printf(sc->sc_dev,"could not adjust Tx power\n");
3354 		/* save maximum allowed power for this channel */
3382 	/* save power group information */
3388 	DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n,
3393 		group->samples[i].power = rgroup.samples[i].power;
3395 		DPRINTF(("\tsample %d: index=%d power=%d\n", i,
3396 			    group->samples[i].index, group->samples[i].power));
3401  * Update Tx power to match what is defined for channel `c'.
3416 	/* find the power group to which this channel belongs */
3428 	/* set Tx power for all OFDM and CCK rates */
3430 		/* retrieve Tx power for this channel/rate combination */
3443 		DPRINTFN(WPI_DEBUG_TEMP,("chan %d/rate %d: power index %d\n",
3451  * Determine Tx power index for a given channel/rate combination.
3476 	/* default power is group's maximum power - 3dB */
3479 	/* decrease power for highest OFDM rates to reduce distortion */
3492 	/* never exceed channel's maximum allowed Tx power */
3495 	/* retrieve power index into gain tables from samples */
3497 		if (pwr > sample[1].power)
3500 	idx = interpolate(pwr, sample[0].power, sample[0].index,
3501 	    sample[1].power, sample[1].index, 19);
3504 	 *  Adjust power index based on current temperature
3505 	 *	- if colder than factory-calibrated: decreate output power
3506 	 *	- if warmer than factory-calibrated: increase output power
3510 	/* decrease power for CCK rates (-5dB) */
3514 	/* keep power index in a valid range */