b43: N-PHY: add running samples

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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) {