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b43: Add LP 2062 radio init
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This adds initialization code for the 2062 radio.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Michael Buesch authored and John W. Linville committed Feb 9, 2009
1 parent 6c1bb92 commit 24b5bcc
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Showing 4 changed files with 355 additions and 4 deletions.
111 changes: 108 additions & 3 deletions drivers/net/wireless/b43/phy_lp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,7 @@ static void lpphy_baseband_rev2plus_init(struct b43_wldev *dev)
b43_phy_set(dev, B43_PHY_OFDM(0x10A), 0x1);
b43_phy_maskset(dev, B43_LPPHY_CCKLMSSTEPSIZE, 0xFF01, 0x10);
b43_phy_maskset(dev, B43_PHY_OFDM(0xDF), 0xFF00, 0xF4);
b43_phy_maskset(dev, B43_PHY_OFDM(0xDF), 0x00FF, 0xF100);//FIXME specs are different
b43_phy_maskset(dev, B43_PHY_OFDM(0xDF), 0x00FF, 0xF100);
b43_phy_write(dev, B43_LPPHY_CLIPTHRESH, 0x48);
b43_phy_maskset(dev, B43_LPPHY_HIGAINDB, 0xFF00, 0x46);
b43_phy_maskset(dev, B43_PHY_OFDM(0xE4), 0xFF00, 0x10);
Expand Down Expand Up @@ -155,11 +155,114 @@ static void lpphy_baseband_init(struct b43_wldev *dev)
lpphy_baseband_rev0_1_init(dev);
}

static void lpphy_radio_init(struct b43_wldev *dev)
struct b2062_freqdata {
u16 freq;
u8 data[6];
};

/* Initialize the 2062 radio. */
static void lpphy_2062_init(struct b43_wldev *dev)
{
u32 crystalfreq, pdiv, tmp, ref;
unsigned int i;
const struct b2062_freqdata *fd = NULL;

static const struct b2062_freqdata freqdata_tab[] = {
{ .freq = 12000, .data[0] = 6, .data[1] = 6, .data[2] = 6,
.data[3] = 6, .data[4] = 10, .data[5] = 6, },
{ .freq = 13000, .data[0] = 4, .data[1] = 4, .data[2] = 4,
.data[3] = 4, .data[4] = 11, .data[5] = 7, },
{ .freq = 14400, .data[0] = 3, .data[1] = 3, .data[2] = 3,
.data[3] = 3, .data[4] = 12, .data[5] = 7, },
{ .freq = 16200, .data[0] = 3, .data[1] = 3, .data[2] = 3,
.data[3] = 3, .data[4] = 13, .data[5] = 8, },
{ .freq = 18000, .data[0] = 2, .data[1] = 2, .data[2] = 2,
.data[3] = 2, .data[4] = 14, .data[5] = 8, },
{ .freq = 19200, .data[0] = 1, .data[1] = 1, .data[2] = 1,
.data[3] = 1, .data[4] = 14, .data[5] = 9, },
};

b2062_upload_init_table(dev);

b43_radio_write(dev, B2062_N_TX_CTL3, 0);
b43_radio_write(dev, B2062_N_TX_CTL4, 0);
b43_radio_write(dev, B2062_N_TX_CTL5, 0);
b43_radio_write(dev, B2062_N_PDN_CTL0, 0x40);
b43_radio_write(dev, B2062_N_PDN_CTL0, 0);
b43_radio_write(dev, B2062_N_CALIB_TS, 0x10);
b43_radio_write(dev, B2062_N_CALIB_TS, 0);
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
b43_radio_set(dev, B2062_N_TSSI_CTL0, 0x1);
else
b43_radio_mask(dev, B2062_N_TSSI_CTL0, ~0x1);

crystalfreq = 0;//FIXME

if (crystalfreq >= 30000000) {
pdiv = 1;
b43_radio_mask(dev, B2062_S_RFPLL_CTL1, 0xFFFB);
} else {
pdiv = 2;
b43_radio_set(dev, B2062_S_RFPLL_CTL1, 0x4);
}

tmp = (800000000 * pdiv + crystalfreq) / (32000000 * pdiv);
tmp = (tmp - 1) & 0xFF;
b43_radio_write(dev, B2062_S_RFPLL_CTL18, tmp);

tmp = (2 * crystalfreq + 1000000 * pdiv) / (2000000 * pdiv);
tmp = ((tmp & 0xFF) - 1) & 0xFFFF;
b43_radio_write(dev, B2062_S_RFPLL_CTL19, tmp);

ref = (1000 * pdiv + 2 * crystalfreq) / (2000 * pdiv);
ref &= 0xFFFF;
for (i = 0; i < ARRAY_SIZE(freqdata_tab); i++) {
if (ref < freqdata_tab[i].freq) {
fd = &freqdata_tab[i];
break;
}
}
if (B43_WARN_ON(!fd))
return;

b43_radio_write(dev, B2062_S_RFPLL_CTL8,
((u16)(fd->data[1]) << 4) | fd->data[0]);
b43_radio_write(dev, B2062_S_RFPLL_CTL9,
((u16)(fd->data[3]) << 4) | fd->data[2]);//FIXME specs are different
b43_radio_write(dev, B2062_S_RFPLL_CTL10, fd->data[4]);
b43_radio_write(dev, B2062_S_RFPLL_CTL11, fd->data[5]);
}

/* Initialize the 2063 radio. */
static void lpphy_2063_init(struct b43_wldev *dev)
{
//TODO
}

static void lpphy_sync_stx(struct b43_wldev *dev)
{
//TODO
}

static void lpphy_radio_init(struct b43_wldev *dev)
{
/* The radio is attached through the 4wire bus. */
b43_phy_set(dev, B43_LPPHY_FOURWIRE_CTL, 0x2);
udelay(1);
b43_phy_mask(dev, B43_LPPHY_FOURWIRE_CTL, 0xFFFD);
udelay(1);

if (dev->phy.rev < 2) {
lpphy_2062_init(dev);
} else {
lpphy_2063_init(dev);
lpphy_sync_stx(dev);
b43_phy_write(dev, B43_PHY_OFDM(0xF0), 0x5F80);
b43_phy_write(dev, B43_PHY_OFDM(0xF1), 0);
//TODO Do something on the backplane
}
}

static int b43_lpphy_op_init(struct b43_wldev *dev)
{
/* TODO: band SPROM */
Expand Down Expand Up @@ -222,7 +325,9 @@ static int b43_lpphy_op_switch_channel(struct b43_wldev *dev,

static unsigned int b43_lpphy_op_get_default_chan(struct b43_wldev *dev)
{
return 1; /* Default to channel 1 */
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
return 1;
return 36;
}

static void b43_lpphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
Expand Down
2 changes: 1 addition & 1 deletion drivers/net/wireless/b43/phy_lp.h
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Original file line number Diff line number Diff line change
Expand Up @@ -273,7 +273,7 @@
#define B43_LPPHY_TRLOOKUP4 B43_PHY_OFDM(0xBC) /* TRLookup4 */
#define B43_LPPHY_RADAR_FIFO_STAT B43_PHY_OFDM(0xBD) /* Radar FIFO Status */
#define B43_LPPHY_GPIO_OUTEN B43_PHY_OFDM(0xBE) /* GPIO Out enable */
#define B43_LPPHY_GPOI_SELECT B43_PHY_OFDM(0xBF) /* GPOI Select */
#define B43_LPPHY_GPIO_SELECT B43_PHY_OFDM(0xBF) /* GPIO Select */
#define B43_LPPHY_GPIO_OUT B43_PHY_OFDM(0xC0) /* GPIO Out */


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