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authorRafał Miłecki2010-02-04 13:08:08 +0100
committerJohn W. Linville2010-02-08 16:50:56 -0500
commit5f6393ecf5cc7d064ba9172e0a2e1c64bcaaaf2f (patch)
tree818b958088881d7d541c65987d73e0cccd9c4787 /drivers/net
parent9442e5b58edb4a108ec5aae420a6fff3a63acab0 (diff)
b43: N-PHY: load generated samples
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/b43/phy_n.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 74642d43e1ff..074b34c3b383 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -1017,6 +1017,33 @@ static void b43_nphy_workarounds(struct b43_wldev *dev)
b43_nphy_stay_in_carrier_search(dev, 0);
}
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/LoadSampleTable */
+static int b43_nphy_load_samples(struct b43_wldev *dev,
+ struct b43_c32 *samples, u16 len) {
+ struct b43_phy_n *nphy = dev->phy.n;
+ u16 i;
+ u32 *data;
+
+ data = kzalloc(len * sizeof(u32), GFP_KERNEL);
+ if (!data) {
+ b43err(dev->wl, "allocation for samples loading failed\n");
+ return -ENOMEM;
+ }
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, 1);
+
+ for (i = 0; i < len; i++) {
+ data[i] = (samples[i].i & 0x3FF << 10);
+ data[i] |= samples[i].q & 0x3FF;
+ }
+ b43_ntab_write_bulk(dev, B43_NTAB32(17, 0), len, data);
+
+ kfree(data);
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, 0);
+ return 0;
+}
+
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/GenLoadSamples */
static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max,
bool test)
@@ -1052,9 +1079,9 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max,
samples[i].i = CORDIC_CONVERT(samples[i].i * max);
}
- /* TODO: Call N PHY Load Sample Table with buffer, len as arguments */
+ i = b43_nphy_load_samples(dev, samples, len);
kfree(samples);
- return len;
+ return (i < 0) ? 0 : len;
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RunSamples */