diff options
| author | Rafał Miłecki | 2010-01-25 19:00:01 +0100 |
|---|---|---|
| committer | John W. Linville | 2010-01-25 16:40:36 -0500 |
| commit | f2982181e0531c0b12752336a1578626f99e7828 (patch) | |
| tree | 76efd275e4942a3d7d5480ffb2c41fb899ff63b9 /drivers/net | |
| parent | 6f98e62a9f1bdbd83d8d1be8c2ca6f58099846ef (diff) | |
b43: N-PHY: use cordic to generate 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.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index 061b01b814d1..df4bf435e218 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -821,8 +821,9 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max, bool test) { int i; - u16 bw, len, num, rot, angle; - /* TODO: *buffer; */ + u16 bw, len, rot, angle; + b43_c32 *samples; + bw = (dev->phy.is_40mhz) ? 40 : 20; len = bw << 3; @@ -839,18 +840,20 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max, len = bw << 1; } - /* TODO: buffer = kzalloc(len * sizeof(u32), GFP_KERNEL); */ - num = len; + samples = kzalloc(len * sizeof(b43_c32), GFP_KERNEL); rot = (((freq * 36) / bw) << 16) / 100; angle = 0; - for (i = 0; i < num; i++) { - /* TODO */ + for (i = 0; i < len; i++) { + samples[i] = b43_cordic(angle); + angle += rot; + samples[i].q = CORDIC_CONVERT(samples[i].q * max); + samples[i].i = CORDIC_CONVERT(samples[i].i * max); } - /* TODO: Call N PHY Load Sample Table with buffer, num as arguments */ - /* TODO: kfree(buffer); */ - return num; + /* TODO: Call N PHY Load Sample Table with buffer, len as arguments */ + kfree(samples); + return len; } /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RunSamples */ |