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authorRafał Miłecki <zajec5@gmail.com>2010-01-22 01:53:14 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-01-22 22:11:38 +0100
commit10a798733e0f47923a1050231d8d39609c62be70 (patch)
tree7100f8ea0c4d373cdc6d866bfb4fe1f3675e9814 /drivers/net/wireless/b43
parentb43: N-PHY: implement overriding RF control (diff)
downloadlinux-10a798733e0f47923a1050231d8d39609c62be70.tar.xz
linux-10a798733e0f47923a1050231d8d39609c62be70.zip
b43: N-PHY: add running samples
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43')
-rw-r--r--drivers/net/wireless/b43/phy_n.c68
1 files changed, 64 insertions, 4 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index d3c9783b76ba..f5900f04ff5c 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -816,6 +816,66 @@ static void b43_nphy_stop_playback(struct b43_wldev *dev)
b43_nphy_stay_in_carrier_search(dev, 0);
}
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RunSamples */
+static void b43_nphy_run_samples(struct b43_wldev *dev, u16 samps, u16 loops,
+ u16 wait, bool iqmode, bool dac_test)
+{
+ struct b43_phy_n *nphy = dev->phy.n;
+ int i;
+ u16 seq_mode;
+ u32 tmp;
+
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, true);
+
+ if ((nphy->bb_mult_save & 0x80000000) == 0) {
+ tmp = b43_ntab_read(dev, B43_NTAB16(15, 87));
+ nphy->bb_mult_save = (tmp & 0xFFFF) | 0x80000000;
+ }
+
+ if (!dev->phy.is_40mhz)
+ tmp = 0x6464;
+ else
+ tmp = 0x4747;
+ b43_ntab_write(dev, B43_NTAB16(15, 87), tmp);
+
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, false);
+
+ b43_phy_write(dev, B43_NPHY_SAMP_DEPCNT, (samps - 1));
+
+ if (loops != 0xFFFF)
+ b43_phy_write(dev, B43_NPHY_SAMP_LOOPCNT, (loops - 1));
+ else
+ b43_phy_write(dev, B43_NPHY_SAMP_LOOPCNT, loops);
+
+ b43_phy_write(dev, B43_NPHY_SAMP_WAITCNT, wait);
+
+ seq_mode = b43_phy_read(dev, B43_NPHY_RFSEQMODE);
+
+ b43_phy_set(dev, B43_NPHY_RFSEQMODE, B43_NPHY_RFSEQMODE_CAOVER);
+ if (iqmode) {
+ b43_phy_mask(dev, B43_NPHY_IQLOCAL_CMDGCTL, 0x7FFF);
+ b43_phy_set(dev, B43_NPHY_IQLOCAL_CMDGCTL, 0x8000);
+ } else {
+ if (dac_test)
+ b43_phy_write(dev, B43_NPHY_SAMP_CMD, 5);
+ else
+ b43_phy_write(dev, B43_NPHY_SAMP_CMD, 1);
+ }
+ for (i = 0; i < 100; i++) {
+ if (b43_phy_read(dev, B43_NPHY_RFSEQST) & 1) {
+ i = 0;
+ break;
+ }
+ udelay(10);
+ }
+ if (i)
+ b43err(dev->wl, "run samples timeout\n");
+
+ b43_phy_write(dev, B43_NPHY_RFSEQMODE, seq_mode);
+}
+
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxPwrCtrlCoefSetup */
static void b43_nphy_tx_pwr_ctrl_coef_setup(struct b43_wldev *dev)
{
@@ -1869,8 +1929,8 @@ static int b43_nphy_cal_tx_iq_lo(struct b43_wldev *dev,
freq = 5000;
if (nphy->mphase_cal_phase_id > 2)
- ;/* TODO: Call N PHY Run Samples with (band width * 8),
- 0xFFFF, 0, 1, 0 as arguments */
+ b43_nphy_run_samples(dev, (dev->phy.is_40mhz ? 40 : 20) * 8,
+ 0xFFFF, 0, true, false);
else
;/* TODO: Call N PHY TX Tone with freq, 250, 1, 0 as arguments
and save result as error */
@@ -2162,8 +2222,8 @@ static int b43_nphy_rev2_cal_rx_iq(struct b43_wldev *dev,
as arguments and save result as ret */
playtone = false;
} else {
- /* TODO: Call N PHY Run Samples with 160,
- 0xFFFF, 0, 0, 0 as arguments */
+ b43_nphy_run_samples(dev, 160, 0xFFFF, 0,
+ false, false);
}
if (ret == 0) {