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b43: N-PHY: implement TX power control coef setup 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2010-01-15 16:24:57 +01:00 committed by John W. Linville
parent 15931e318b
commit 6dcd9d911c
1 changed files with 68 additions and 1 deletions
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69
drivers/net/wireless/b43/phy_n.c
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@ -659,6 +659,73 @@ static void b43_nphy_stay_in_carrier_search(struct b43_wldev *dev, bool enable)
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxPwrCtrlCoefSetup */
static void b43_nphy_tx_pwr_ctrl_coef_setup(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
int i, j;
u32 tmp;
u32 cur_real, cur_imag, real_part, imag_part;
u16 buffer[7];
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, true);
/* TODO: Read an N PHY Table with ID 15, length 7, offset 80,
width 16, and data pointer buffer */
for (i = 0; i < 2; i++) {
tmp = ((buffer[i * 2] & 0x3FF) << 10) |
(buffer[i * 2 + 1] & 0x3FF);
b43_phy_write(dev, B43_NPHY_TABLE_ADDR,
(((i + 26) << 10) | 320));
for (j = 0; j < 128; j++) {
b43_phy_write(dev, B43_NPHY_TABLE_DATAHI,
((tmp >> 16) & 0xFFFF));
b43_phy_write(dev, B43_NPHY_TABLE_DATALO,
(tmp & 0xFFFF));
}
}
for (i = 0; i < 2; i++) {
tmp = buffer[5 + i];
real_part = (tmp >> 8) & 0xFF;
imag_part = (tmp & 0xFF);
b43_phy_write(dev, B43_NPHY_TABLE_ADDR,
(((i + 26) << 10) | 448));
if (dev->phy.rev >= 3) {
cur_real = real_part;
cur_imag = imag_part;
tmp = ((cur_real & 0xFF) << 8) | (cur_imag & 0xFF);
}
for (j = 0; j < 128; j++) {
if (dev->phy.rev < 3) {
cur_real = (real_part * loscale[j] + 128) >> 8;
cur_imag = (imag_part * loscale[j] + 128) >> 8;
tmp = ((cur_real & 0xFF) << 8) |
(cur_imag & 0xFF);
}
b43_phy_write(dev, B43_NPHY_TABLE_DATAHI,
((tmp >> 16) & 0xFFFF));
b43_phy_write(dev, B43_NPHY_TABLE_DATALO,
(tmp & 0xFFFF));
}
}
if (dev->phy.rev >= 3) {
b43_shm_write16(dev, B43_SHM_SHARED,
B43_SHM_SH_NPHY_TXPWR_INDX0, 0xFFFF);
b43_shm_write16(dev, B43_SHM_SHARED,
B43_SHM_SH_NPHY_TXPWR_INDX1, 0xFFFF);
}
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, false);
}
enum b43_nphy_rf_sequence {
B43_RFSEQ_RX2TX,
B43_RFSEQ_TX2RX,
@ -2040,7 +2107,7 @@ int b43_phy_initn(struct b43_wldev *dev)
b43_nphy_restore_cal(dev);
}
/* b43_nphy_tx_pwr_ctrl_coef_setup(dev); */
b43_nphy_tx_pwr_ctrl_coef_setup(dev);
/* TODO N PHY TX Power Control Enable with argument tx_pwr_state */
b43_phy_write(dev, B43_NPHY_TXMACIF_HOLDOFF, 0x0015);
b43_phy_write(dev, B43_NPHY_TXMACDELAY, 0x0320);