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>
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 061b01b..df4bf43 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -821,8 +821,9 @@
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 @@
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 */