From: "Rafał Miłecki" <zajec5@gmail.com>
To: linux-wireless@vger.kernel.org,
"John W. Linville" <linville@tuxdriver.com>
Cc: bcm43xx-dev@lists.berlios.de, "Rafał Miłecki" <zajec5@gmail.com>
Subject: [PATCH 4/5] b43: N-PHY: save calibration for further restore
Date: Thu, 4 Feb 2010 12:23:11 +0100 [thread overview]
Message-ID: <1265282592-25491-4-git-send-email-zajec5@gmail.com> (raw)
In-Reply-To: <1265282592-25491-1-git-send-email-zajec5@gmail.com>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
drivers/net/wireless/b43/phy_n.c | 51 +++++++++++++++++++++++++++++++++++++-
drivers/net/wireless/b43/phy_n.h | 1 +
2 files changed, 51 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index e8266ed..f632494 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -2319,6 +2319,55 @@ static void b43_nphy_tx_cal_phy_setup(struct b43_wldev *dev)
}
}
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/SaveCal */
+static void b43_nphy_save_cal(struct b43_wldev *dev)
+{
+ struct b43_phy_n *nphy = dev->phy.n;
+
+ struct b43_phy_n_iq_comp *rxcal_coeffs = NULL;
+ u16 *txcal_radio_regs = NULL;
+ u8 *iqcal_chanspec;
+ u16 *table = NULL;
+
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, 1);
+
+ if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+ rxcal_coeffs = &nphy->cal_cache.rxcal_coeffs_2G;
+ txcal_radio_regs = nphy->cal_cache.txcal_radio_regs_2G;
+ iqcal_chanspec = &nphy->iqcal_chanspec_2G;
+ table = nphy->cal_cache.txcal_coeffs_2G;
+ } else {
+ rxcal_coeffs = &nphy->cal_cache.rxcal_coeffs_5G;
+ txcal_radio_regs = nphy->cal_cache.txcal_radio_regs_5G;
+ iqcal_chanspec = &nphy->iqcal_chanspec_5G;
+ table = nphy->cal_cache.txcal_coeffs_5G;
+ }
+
+ b43_nphy_rx_iq_coeffs(dev, false, rxcal_coeffs);
+ /* TODO use some definitions */
+ if (dev->phy.rev >= 3) {
+ txcal_radio_regs[0] = b43_radio_read(dev, 0x2021);
+ txcal_radio_regs[1] = b43_radio_read(dev, 0x2022);
+ txcal_radio_regs[2] = b43_radio_read(dev, 0x3021);
+ txcal_radio_regs[3] = b43_radio_read(dev, 0x3022);
+ txcal_radio_regs[4] = b43_radio_read(dev, 0x2023);
+ txcal_radio_regs[5] = b43_radio_read(dev, 0x2024);
+ txcal_radio_regs[6] = b43_radio_read(dev, 0x3023);
+ txcal_radio_regs[7] = b43_radio_read(dev, 0x3024);
+ } else {
+ txcal_radio_regs[0] = b43_radio_read(dev, 0x8B);
+ txcal_radio_regs[1] = b43_radio_read(dev, 0xBA);
+ txcal_radio_regs[2] = b43_radio_read(dev, 0x8D);
+ txcal_radio_regs[3] = b43_radio_read(dev, 0xBC);
+ }
+ *iqcal_chanspec = nphy->radio_chanspec;
+ b43_ntab_write_bulk(dev, B43_NTAB16(15, 80), 8, table);
+
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, 0);
+}
+
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RestoreCal */
static void b43_nphy_restore_cal(struct b43_wldev *dev)
{
@@ -3016,7 +3065,7 @@ int b43_phy_initn(struct b43_wldev *dev)
if (!b43_nphy_cal_tx_iq_lo(dev, target, true, false)) {
if (b43_nphy_cal_rx_iq(dev, target, 2, 0) == 0)
- ;/* Call N PHY Save Cal */
+ b43_nphy_save_cal(dev);
else if (nphy->mphase_cal_phase_id == 0)
;/* N PHY Periodic Calibration with argument 3 */
} else {
diff --git a/drivers/net/wireless/b43/phy_n.h b/drivers/net/wireless/b43/phy_n.h
index ae82f0f..0400a2c 100644
--- a/drivers/net/wireless/b43/phy_n.h
+++ b/drivers/net/wireless/b43/phy_n.h
@@ -975,6 +975,7 @@ struct b43_phy_n {
u16 papd_epsilon_offset[2];
s32 preamble_override;
u32 bb_mult_save;
+ u16 radio_chanspec;
bool gain_boost;
bool elna_gain_config;
--
1.6.4.2
next prev parent reply other threads:[~2010-02-04 11:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-04 11:23 [PATCH 1/5] b43: N-PHY: implement overriding RF control intc Rafał Miłecki
2010-02-04 11:23 ` [PATCH 2/5] b43: N-PHY: load generated samples Rafał Miłecki
2010-02-04 11:45 ` Johannes Berg
2010-02-04 11:23 ` [PATCH 3/5] b43: N-PHY: prepare code for reapplying TX cal coeffs Rafał Miłecki
2010-02-04 11:23 ` Rafał Miłecki [this message]
2010-02-04 11:23 ` [PATCH 5/5] b43: N-PHY: partly implement SPUR workaround Rafał Miłecki
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