diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2010-01-25 19:00:00 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-01-25 16:39:03 -0500 |
| commit | 6f98e62a9f1bdbd83d8d1be8c2ca6f58099846ef (patch) | |
| tree | cdfabc6feccd4e01b56fbf44bdce3eea25e573f4 /drivers/net/wireless/b43/phy_lp.c | |
| parent | 986504540306137dfc90a936f9f25086d15621c5 (diff) | |
b43: update cordic code to match current specs
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/phy_lp.c')
| -rw-r--r-- | drivers/net/wireless/b43/phy_lp.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c index 45358507343..185219e0a55 100644 --- a/drivers/net/wireless/b43/phy_lp.c +++ b/drivers/net/wireless/b43/phy_lp.c @@ -1784,7 +1784,8 @@ static void lpphy_start_tx_tone(struct b43_wldev *dev, s32 freq, u16 max) { struct b43_phy_lp *lpphy = dev->phy.lp; u16 buf[64]; - int i, samples = 0, angle = 0, rotation = (9 * freq) / 500; + int i, samples = 0, angle = 0; + int rotation = (((36 * freq) / 20) << 16) / 100; struct b43_c32 sample; lpphy->tx_tone_freq = freq; @@ -1803,8 +1804,8 @@ static void lpphy_start_tx_tone(struct b43_wldev *dev, s32 freq, u16 max) for (i = 0; i < samples; i++) { sample = b43_cordic(angle); angle += rotation; - buf[i] = ((sample.i * max) & 0xFF) << 8; - buf[i] |= (sample.q * max) & 0xFF; + buf[i] = CORDIC_CONVERT((sample.i * max) & 0xFF) << 8; + buf[i] |= CORDIC_CONVERT((sample.q * max) & 0xFF); } b43_lptab_write_bulk(dev, B43_LPTAB16(5, 0), samples, buf); |