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b43: HT-PHY: implement playing sample tone 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2013-03-07 16:47:24 +01:00 committed by John W. Linville
parent 371ec465a3
commit 396535e137
2 changed files with 74 additions and 0 deletions
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69
drivers/net/wireless/b43/phy_ht.c
View File

@ -321,6 +321,70 @@ static void b43_phy_ht_stop_playback(struct b43_wldev *dev)
}
}
}
static u16 b43_phy_ht_load_samples(struct b43_wldev *dev)
{
int i;
u16 len = 20 << 3;
b43_phy_write(dev, B43_PHY_HT_TABLE_ADDR, 0x4400);
for (i = 0; i < len; i++) {
b43_phy_write(dev, B43_PHY_HT_TABLE_DATAHI, 0);
b43_phy_write(dev, B43_PHY_HT_TABLE_DATALO, 0);
}
return len;
}
static void b43_phy_ht_run_samples(struct b43_wldev *dev, u16 samps, u16 loops,
u16 wait)
{
struct b43_phy_ht *phy_ht = dev->phy.ht;
u16 save_seq_mode;
int i;
for (i = 0; i < 3; i++) {
if (phy_ht->bb_mult_save[i] < 0)
phy_ht->bb_mult_save[i] = b43_httab_read(dev, B43_HTTAB16(13, 0x63 + i * 4));
}
b43_phy_write(dev, B43_PHY_HT_SAMP_DEP_CNT, samps - 1);
if (loops != 0xFFFF)
loops--;
b43_phy_write(dev, B43_PHY_HT_SAMP_LOOP_CNT, loops);
b43_phy_write(dev, B43_PHY_HT_SAMP_WAIT_CNT, wait);
save_seq_mode = b43_phy_read(dev, B43_PHY_HT_RF_SEQ_MODE);
b43_phy_set(dev, B43_PHY_HT_RF_SEQ_MODE,
B43_PHY_HT_RF_SEQ_MODE_CA_OVER);
/* TODO: find out mask bits! Do we need more function arguments? */
b43_phy_mask(dev, B43_PHY_HT_SAMP_CMD, ~0);
b43_phy_mask(dev, B43_PHY_HT_SAMP_CMD, ~0);
b43_phy_mask(dev, B43_PHY_HT_IQLOCAL_CMDGCTL, ~0);
b43_phy_set(dev, B43_PHY_HT_SAMP_CMD, 0x1);
for (i = 0; i < 100; i++) {
if (!(b43_phy_read(dev, B43_PHY_HT_RF_SEQ_STATUS) & 1)) {
i = 0;
break;
}
udelay(10);
}
if (i)
b43err(dev->wl, "run samples timeout\n");
b43_phy_write(dev, B43_PHY_HT_RF_SEQ_MODE, save_seq_mode);
}
static void b43_phy_ht_tx_tone(struct b43_wldev *dev)
{
u16 samp;
samp = b43_phy_ht_load_samples(dev);
b43_phy_ht_run_samples(dev, samp, 0xFFFF, 0);
}
#endif
/**************************************************
@ -391,7 +455,12 @@ static void b43_phy_ht_tx_power_ctl(struct b43_wldev *dev, bool enable)
static void b43_phy_ht_tx_power_ctl_idle_tssi(struct b43_wldev *dev)
{
/* TODO */
b43_phy_ht_tx_tone(dev);
udelay(20);
/* TODO: poll RSSI */
b43_phy_ht_stop_playback(dev);
/* TODO */
}
#endif

5
drivers/net/wireless/b43/phy_ht.h
View File

@ -19,6 +19,9 @@
#define B43_PHY_HT_IQLOCAL_CMDGCTL 0x0C2 /* I/Q LO cal command G control */
#define B43_PHY_HT_SAMP_CMD 0x0C3 /* Sample command */
#define B43_PHY_HT_SAMP_CMD_STOP 0x0002 /* Stop */
#define B43_PHY_HT_SAMP_LOOP_CNT 0x0C4 /* Sample loop count */
#define B43_PHY_HT_SAMP_WAIT_CNT 0x0C5 /* Sample wait count */
#define B43_PHY_HT_SAMP_DEP_CNT 0x0C6 /* Sample depth count */
#define B43_PHY_HT_SAMP_STAT 0x0C7 /* Sample status */
#define B43_PHY_HT_BW1 0x1CE
#define B43_PHY_HT_BW2 0x1CF
@ -39,6 +42,8 @@
#define B43_PHY_HT_C3_CLIP1THRES B43_PHY_OFDM(0x08E)
#define B43_PHY_HT_RF_SEQ_MODE B43_PHY_EXTG(0x000)
#define B43_PHY_HT_RF_SEQ_MODE_CA_OVER 0x0001 /* Core active override */
#define B43_PHY_HT_RF_SEQ_MODE_TR_OVER 0x0002 /* Trigger override */
#define B43_PHY_HT_RF_SEQ_TRIG B43_PHY_EXTG(0x003)
#define B43_PHY_HT_RF_SEQ_TRIG_RX2TX 0x0001 /* RX2TX */
#define B43_PHY_HT_RF_SEQ_TRIG_TX2RX 0x0002 /* TX2RX */