Signed-off-by: Rafał Miłecki <[email protected]>
---
drivers/net/wireless/b43/phy_n.c | 59 +++++++++++++++++++++++++++++++++++++-
1 files changed, 58 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index c244ddf..7b2468d 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -31,6 +31,8 @@
struct nphy_txgains { u16 txgm[2]; u16 pga[2]; u16 pad[2]; u16 ipa[2]; };
+struct nphy_iq_est { s32 iq0_prod; u32 i0_pwr; u32 q0_pwr; s32 iq1_prod;
+ u32 i1_pwr; u32 q1_pwr; };
void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna)
{//TODO
@@ -471,6 +473,61 @@ static void b43_nphy_rx_iq_coeffs(struct b43_wldev *dev,
bool write,
}
}
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqEst */
+static void b43_nphy_rx_iq_est(struct b43_wldev *dev, struct nphy_iq_est *est,
+ u16 samps, u8 time, bool wait)
+{
+ int i;
+ u16 tmp;
+
+ b43_phy_write(dev, B43_NPHY_IQEST_SAMCNT, samps);
+ b43_phy_maskset(dev, B43_NPHY_IQEST_WT, ~B43_NPHY_IQEST_WT_VAL, time);
+ if (wait)
+ b43_phy_set(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_MODE);
+ else
+ b43_phy_mask(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_MODE);
+
+ b43_phy_set(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_START);
+
+ for (i = 1000; i; i--) {
+ tmp = b43_phy_read(dev, B43_NPHY_IQEST_CMD);
+ if (!(tmp & B43_NPHY_IQEST_CMD_START)) {
+ est->i0_pwr = (b43_phy_read(dev,
B43_NPHY_IQEST_IPACC_HI0) << 16) |
+ b43_phy_read(dev,
B43_NPHY_IQEST_IPACC_LO0);
+ est->q0_pwr = (b43_phy_read(dev,
B43_NPHY_IQEST_QPACC_HI0) << 16) |
+ b43_phy_read(dev,
B43_NPHY_IQEST_QPACC_LO0);
+ est->iq0_prod = (b43_phy_read(dev,
B43_NPHY_IQEST_IQACC_HI0) << 16) |
+ b43_phy_read(dev,
B43_NPHY_IQEST_IQACC_LO0);
+
+ est->i1_pwr = (b43_phy_read(dev,
B43_NPHY_IQEST_IPACC_HI1) << 16) |
+ b43_phy_read(dev,
B43_NPHY_IQEST_IPACC_LO1);
+ est->q1_pwr = (b43_phy_read(dev,
B43_NPHY_IQEST_QPACC_HI1) << 16) |
+ b43_phy_read(dev,
B43_NPHY_IQEST_QPACC_LO1);
+ est->iq1_prod = (b43_phy_read(dev,
B43_NPHY_IQEST_IQACC_HI1) << 16) |
+ b43_phy_read(dev,
B43_NPHY_IQEST_IQACC_LO1);
+ return;
+ }
+ udelay(10);
+ }
+ memset(est, 0, sizeof(*est));
+}
+
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxIqWar */
+static void b43_nphy_tx_iq_workaround(struct b43_wldev *dev)
+{
+ u16 array[4];
+ int i;
+
+ b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x3C50);
+ for (i = 0; i < 4; i++)
+ array[i] = b43_phy_read(dev, B43_NPHY_TABLE_DATALO);
+
+ b43_shm_write16(dev, B43_SHM_SHARED, 0x0700, array[0]);
+ b43_shm_write16(dev, B43_SHM_SHARED, 0x0702, array[1]);
+ b43_shm_write16(dev, B43_SHM_SHARED, 0x0704, array[2]);
+ b43_shm_write16(dev, B43_SHM_SHARED, 0x0706, array[3]);
+}
+
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxLpFbw */
static void b43_nphy_tx_lp_fbw(struct b43_wldev *dev)
{
@@ -1108,7 +1165,7 @@ static void b43_nphy_restore_cal(struct b43_wldev *dev)
//TODO: Write an N PHY table with ID 15, length 2, offset 93, width 16
and data from loft
if (dev->phy.rev < 2)
- ;//TODO: Call N PHY TX IQ Workaround
+ b43_nphy_tx_iq_workaround(dev);
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
txcal_radio_regs = nphy->cal_cache.txcal_radio_regs_2G;
--
1.6.4.2
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