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b43: N-PHY: add RSSI polling and setting 2055 (radio) VCM 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
hifive-unleashed-5.1
Rafał Miłecki 2010-01-15 14:45:13 +01:00 committed by John W. Linville
parent 3c95627d40
commit dfb4aa5dd0
1 changed files with 96 additions and 0 deletions
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96
drivers/net/wireless/b43/phy_n.c
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@ -586,6 +586,102 @@ static void b43_nphy_rssi_select(struct b43_wldev *dev, u8 code, u8 type)
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/SetRssi2055Vcm */
static void b43_nphy_set_rssi_2055_vcm(struct b43_wldev *dev, u8 type, u8 *buf)
{
int i;
for (i = 0; i < 2; i++) {
if (type == 2) {
if (i == 0) {
b43_radio_maskset(dev, B2055_C1_B0NB_RSSIVCM,
0xFC, buf[0]);
b43_radio_maskset(dev, B2055_C1_RX_BB_RSSICTL5,
0xFC, buf[1]);
} else {
b43_radio_maskset(dev, B2055_C2_B0NB_RSSIVCM,
0xFC, buf[2 * i]);
b43_radio_maskset(dev, B2055_C2_RX_BB_RSSICTL5,
0xFC, buf[2 * i + 1]);
}
} else {
if (i == 0)
b43_radio_maskset(dev, B2055_C1_RX_BB_RSSICTL5,
0xF3, buf[0] << 2);
else
b43_radio_maskset(dev, B2055_C2_RX_BB_RSSICTL5,
0xF3, buf[2 * i + 1] << 2);
}
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/PollRssi */
static int b43_nphy_poll_rssi(struct b43_wldev *dev, u8 type, s32 *buf,
u8 nsamp)
{
int i;
int out;
u16 save_regs_phy[9];
u16 s[2];
if (dev->phy.rev >= 3) {
save_regs_phy[0] = b43_phy_read(dev,
B43_NPHY_RFCTL_LUT_TRSW_UP1);
save_regs_phy[1] = b43_phy_read(dev,
B43_NPHY_RFCTL_LUT_TRSW_UP2);
save_regs_phy[2] = b43_phy_read(dev, B43_NPHY_AFECTL_C1);
save_regs_phy[3] = b43_phy_read(dev, B43_NPHY_AFECTL_C2);
save_regs_phy[4] = b43_phy_read(dev, B43_NPHY_AFECTL_OVER1);
save_regs_phy[5] = b43_phy_read(dev, B43_NPHY_AFECTL_OVER);
save_regs_phy[6] = b43_phy_read(dev, B43_NPHY_TXF_40CO_B1S0);
save_regs_phy[7] = b43_phy_read(dev, B43_NPHY_TXF_40CO_B32S1);
}
b43_nphy_rssi_select(dev, 5, type);
if (dev->phy.rev < 2) {
save_regs_phy[8] = b43_phy_read(dev, B43_NPHY_GPIO_SEL);
b43_phy_write(dev, B43_NPHY_GPIO_SEL, 5);
}
for (i = 0; i < 4; i++)
buf[i] = 0;
for (i = 0; i < nsamp; i++) {
if (dev->phy.rev < 2) {
s[0] = b43_phy_read(dev, B43_NPHY_GPIO_LOOUT);
s[1] = b43_phy_read(dev, B43_NPHY_GPIO_HIOUT);
} else {
s[0] = b43_phy_read(dev, B43_NPHY_RSSI1);
s[1] = b43_phy_read(dev, B43_NPHY_RSSI2);
}
buf[0] += ((s8)((s[0] & 0x3F) << 2)) >> 2;
buf[1] += ((s8)(((s[0] >> 8) & 0x3F) << 2)) >> 2;
buf[2] += ((s8)((s[1] & 0x3F) << 2)) >> 2;
buf[3] += ((s8)(((s[1] >> 8) & 0x3F) << 2)) >> 2;
}
out = (buf[0] & 0xFF) << 24 | (buf[1] & 0xFF) << 16 |
(buf[2] & 0xFF) << 8 | (buf[3] & 0xFF);
if (dev->phy.rev < 2)
b43_phy_write(dev, B43_NPHY_GPIO_SEL, save_regs_phy[8]);
if (dev->phy.rev >= 3) {
b43_phy_write(dev, B43_NPHY_RFCTL_LUT_TRSW_UP1,
save_regs_phy[0]);
b43_phy_write(dev, B43_NPHY_RFCTL_LUT_TRSW_UP2,
save_regs_phy[1]);
b43_phy_write(dev, B43_NPHY_AFECTL_C1, save_regs_phy[2]);
b43_phy_write(dev, B43_NPHY_AFECTL_C2, save_regs_phy[3]);
b43_phy_write(dev, B43_NPHY_AFECTL_OVER1, save_regs_phy[4]);
b43_phy_write(dev, B43_NPHY_AFECTL_OVER, save_regs_phy[5]);
b43_phy_write(dev, B43_NPHY_TXF_40CO_B1S0, save_regs_phy[6]);
b43_phy_write(dev, B43_NPHY_TXF_40CO_B32S1, save_regs_phy[7]);
}
return out;
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RSSICal */
static void b43_nphy_rev2_rssi_cal(struct b43_wldev *dev, u8 type)
{