diff options
| author | Priit Laes <plaes@plaes.org> | 2018-11-19 21:01:25 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-11-29 18:30:50 +0300 |
| commit | d5a433556d096d8e5b2526695aadbc7fd6ff48c9 (patch) | |
| tree | 11f51a67f4e4beb614d3f1f442736686090a0516 /drivers/net/wireless/broadcom/b43/phy_n.c | |
| parent | 8ea3819c0bbef57a51d8abe579e211033e861677 (diff) | |
| download | linux-d5a433556d096d8e5b2526695aadbc7fd6ff48c9.tar.xz | |
b43: Use cordic algorithm from kernel library
Kernel library has a common cordic algorithm which is identical
to internally implemented one, so use it and drop the duplicate
implementation.
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom/b43/phy_n.c')
| -rw-r--r-- | drivers/net/wireless/broadcom/b43/phy_n.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/net/wireless/broadcom/b43/phy_n.c b/drivers/net/wireless/broadcom/b43/phy_n.c index 44ab080d6518..7d300362b933 100644 --- a/drivers/net/wireless/broadcom/b43/phy_n.c +++ b/drivers/net/wireless/broadcom/b43/phy_n.c @@ -23,6 +23,7 @@ */ +#include <linux/cordic.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/types.h> @@ -1513,7 +1514,7 @@ static void b43_radio_init2055(struct b43_wldev *dev) /* 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 cordic_iq *samples, u16 len) { struct b43_phy_n *nphy = dev->phy.n; u16 i; u32 *data; @@ -1544,7 +1545,7 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max, { int i; u16 bw, len, rot, angle; - struct b43_c32 *samples; + struct cordic_iq *samples; bw = b43_is_40mhz(dev) ? 40 : 20; len = bw << 3; @@ -1561,7 +1562,7 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max, len = bw << 1; } - samples = kcalloc(len, sizeof(struct b43_c32), GFP_KERNEL); + samples = kcalloc(len, sizeof(struct cordic_iq), GFP_KERNEL); if (!samples) { b43err(dev->wl, "allocation for samples generation failed\n"); return 0; @@ -1570,10 +1571,10 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max, angle = 0; for (i = 0; i < len; i++) { - samples[i] = b43_cordic(angle); + samples[i] = cordic_calc_iq(CORDIC_FIXED(angle)); angle += rot; - samples[i].q = CORDIC_CONVERT(samples[i].q * max); - samples[i].i = CORDIC_CONVERT(samples[i].i * max); + samples[i].q = CORDIC_FLOAT(samples[i].q * max); + samples[i].i = CORDIC_FLOAT(samples[i].i * max); } i = b43_nphy_load_samples(dev, samples, len); |