Update hostapd to 0.6.4

[openwrt.git] / package / b43 / src / lo.c

diff --git a/package/b43/src/lo.c b/package/b43/src/lo.c
index d890f36..9c854d6 100644 (file)
--- a/package/b43/src/lo.c
+++ b/package/b43/src/lo.c
@@ -36,17 +36,28 @@
 #include <linux/sched.h>
 
 
 #include <linux/sched.h>
 
 

-/* Define to 1 to always calibrate all possible LO control pairs.
- * This is a workaround until we fix the partial LO calibration optimization. */
-#define B43_CALIB_ALL_LOCTLS   1
+static struct b43_lo_calib * b43_find_lo_calib(struct b43_txpower_lo_control *lo,
+                                              const struct b43_bbatt *bbatt,
+                                              const struct b43_rfatt *rfatt)
+{
+       struct b43_lo_calib *c;
+
+       list_for_each_entry(c, &lo->calib_list, list) {
+               if (!b43_compare_bbatt(&c->bbatt, bbatt))
+                       continue;
+               if (!b43_compare_rfatt(&c->rfatt, rfatt))
+                       continue;
+               return c;
+       }

 
 

+       return NULL;
+}

 
 /* Write the LocalOscillator Control (adjust) value-pair. */
 static void b43_lo_write(struct b43_wldev *dev, struct b43_loctl *control)
 {
        struct b43_phy *phy = &dev->phy;
        u16 value;
 
 /* Write the LocalOscillator Control (adjust) value-pair. */
 static void b43_lo_write(struct b43_wldev *dev, struct b43_loctl *control)
 {
        struct b43_phy *phy = &dev->phy;
        u16 value;

-       u16 reg;

 
        if (B43_DEBUG) {
                if (unlikely(abs(control->i) > 16 || abs(control->q) > 16)) {
 
        if (B43_DEBUG) {
                if (unlikely(abs(control->i) > 16 || abs(control->q) > 16)) {


@@ -56,189 +67,11 @@ static void b43_lo_write(struct b43_wldev *dev, struct b43_loctl *control)
                        return;
                }
        }
                        return;
                }
        }

+       B43_WARN_ON(phy->type != B43_PHYTYPE_G);

 
        value = (u8) (control->q);
        value |= ((u8) (control->i)) << 8;
 
        value = (u8) (control->q);
        value |= ((u8) (control->i)) << 8;

-
-       reg = (phy->type == B43_PHYTYPE_B) ? 0x002F : B43_PHY_LO_CTL;
-       b43_phy_write(dev, reg, value);
-}
-
-static int assert_rfatt_and_bbatt(const struct b43_rfatt *rfatt,
-                                 const struct b43_bbatt *bbatt,
-                                 struct b43_wldev *dev)
-{
-       int err = 0;
-
-       /* Check the attenuation values against the LO control array sizes. */
-       if (unlikely(rfatt->att >= B43_NR_RF)) {
-               b43err(dev->wl, "rfatt(%u) >= size of LO array\n", rfatt->att);
-               err = -EINVAL;
-       }
-       if (unlikely(bbatt->att >= B43_NR_BB)) {
-               b43err(dev->wl, "bbatt(%u) >= size of LO array\n", bbatt->att);
-               err = -EINVAL;
-       }
-
-       return err;
-}
-
-#if !B43_CALIB_ALL_LOCTLS
-static
-struct b43_loctl *b43_get_lo_g_ctl_nopadmix(struct b43_wldev *dev,
-                                           const struct b43_rfatt *rfatt,
-                                           const struct b43_bbatt *bbatt)
-{
-       struct b43_phy *phy = &dev->phy;
-       struct b43_txpower_lo_control *lo = phy->lo_control;
-
-       if (assert_rfatt_and_bbatt(rfatt, bbatt, dev))
-               return &(lo->no_padmix[0][0]);  /* Just prevent a crash */
-       return &(lo->no_padmix[bbatt->att][rfatt->att]);
-}
-#endif /* !B43_CALIB_ALL_LOCTLS */
-
-struct b43_loctl *b43_get_lo_g_ctl(struct b43_wldev *dev,
-                                  const struct b43_rfatt *rfatt,
-                                  const struct b43_bbatt *bbatt)
-{
-       struct b43_phy *phy = &dev->phy;
-       struct b43_txpower_lo_control *lo = phy->lo_control;
-
-       if (assert_rfatt_and_bbatt(rfatt, bbatt, dev))
-               return &(lo->no_padmix[0][0]);  /* Just prevent a crash */
-       if (rfatt->with_padmix)
-               return &(lo->with_padmix[bbatt->att][rfatt->att]);
-       return &(lo->no_padmix[bbatt->att][rfatt->att]);
-}
-
-/* Call a function for every possible LO control value-pair. */
-static void b43_call_for_each_loctl(struct b43_wldev *dev,
-                                   void (*func) (struct b43_wldev *,
-                                                 struct b43_loctl *))
-{
-       struct b43_phy *phy = &dev->phy;
-       struct b43_txpower_lo_control *ctl = phy->lo_control;
-       int i, j;
-
-       for (i = 0; i < B43_NR_BB; i++) {
-               for (j = 0; j < B43_NR_RF; j++)
-                       func(dev, &(ctl->with_padmix[i][j]));
-       }
-       for (i = 0; i < B43_NR_BB; i++) {
-               for (j = 0; j < B43_NR_RF; j++)
-                       func(dev, &(ctl->no_padmix[i][j]));
-       }
-}
-
-static u16 lo_b_r15_loop(struct b43_wldev *dev)
-{
-       int i;
-       u16 ret = 0;
-
-       for (i = 0; i < 10; i++) {
-               b43_phy_write(dev, 0x0015, 0xAFA0);
-               udelay(1);
-               b43_phy_write(dev, 0x0015, 0xEFA0);
-               udelay(10);
-               b43_phy_write(dev, 0x0015, 0xFFA0);
-               udelay(40);
-               ret += b43_phy_read(dev, 0x002C);
-       }
-
-       return ret;
-}
-
-void b43_lo_b_measure(struct b43_wldev *dev)
-{
-       struct b43_phy *phy = &dev->phy;
-       u16 regstack[12] = { 0 };
-       u16 mls;
-       u16 fval;
-       int i, j;
-
-       regstack[0] = b43_phy_read(dev, 0x0015);
-       regstack[1] = b43_radio_read16(dev, 0x0052) & 0xFFF0;
-
-       if (phy->radio_ver == 0x2053) {
-               regstack[2] = b43_phy_read(dev, 0x000A);
-               regstack[3] = b43_phy_read(dev, 0x002A);
-               regstack[4] = b43_phy_read(dev, 0x0035);
-               regstack[5] = b43_phy_read(dev, 0x0003);
-               regstack[6] = b43_phy_read(dev, 0x0001);
-               regstack[7] = b43_phy_read(dev, 0x0030);
-
-               regstack[8] = b43_radio_read16(dev, 0x0043);
-               regstack[9] = b43_radio_read16(dev, 0x007A);
-               regstack[10] = b43_read16(dev, 0x03EC);
-               regstack[11] = b43_radio_read16(dev, 0x0052) & 0x00F0;
-
-               b43_phy_write(dev, 0x0030, 0x00FF);
-               b43_write16(dev, 0x03EC, 0x3F3F);
-               b43_phy_write(dev, 0x0035, regstack[4] & 0xFF7F);
-               b43_radio_write16(dev, 0x007A, regstack[9] & 0xFFF0);
-       }
-       b43_phy_write(dev, 0x0015, 0xB000);
-       b43_phy_write(dev, 0x002B, 0x0004);
-
-       if (phy->radio_ver == 0x2053) {
-               b43_phy_write(dev, 0x002B, 0x0203);
-               b43_phy_write(dev, 0x002A, 0x08A3);
-       }
-
-       phy->minlowsig[0] = 0xFFFF;
-
-       for (i = 0; i < 4; i++) {
-               b43_radio_write16(dev, 0x0052, regstack[1] | i);
-               lo_b_r15_loop(dev);
-       }
-       for (i = 0; i < 10; i++) {
-               b43_radio_write16(dev, 0x0052, regstack[1] | i);
-               mls = lo_b_r15_loop(dev) / 10;
-               if (mls < phy->minlowsig[0]) {
-                       phy->minlowsig[0] = mls;
-                       phy->minlowsigpos[0] = i;
-               }
-       }
-       b43_radio_write16(dev, 0x0052, regstack[1] | phy->minlowsigpos[0]);
-
-       phy->minlowsig[1] = 0xFFFF;
-
-       for (i = -4; i < 5; i += 2) {
-               for (j = -4; j < 5; j += 2) {
-                       if (j < 0)
-                               fval = (0x0100 * i) + j + 0x0100;
-                       else
-                               fval = (0x0100 * i) + j;
-                       b43_phy_write(dev, 0x002F, fval);
-                       mls = lo_b_r15_loop(dev) / 10;
-                       if (mls < phy->minlowsig[1]) {
-                               phy->minlowsig[1] = mls;
-                               phy->minlowsigpos[1] = fval;
-                       }
-               }
-       }
-       phy->minlowsigpos[1] += 0x0101;
-
-       b43_phy_write(dev, 0x002F, phy->minlowsigpos[1]);
-       if (phy->radio_ver == 0x2053) {
-               b43_phy_write(dev, 0x000A, regstack[2]);
-               b43_phy_write(dev, 0x002A, regstack[3]);
-               b43_phy_write(dev, 0x0035, regstack[4]);
-               b43_phy_write(dev, 0x0003, regstack[5]);
-               b43_phy_write(dev, 0x0001, regstack[6]);
-               b43_phy_write(dev, 0x0030, regstack[7]);
-
-               b43_radio_write16(dev, 0x0043, regstack[8]);
-               b43_radio_write16(dev, 0x007A, regstack[9]);
-
-               b43_radio_write16(dev, 0x0052,
-                                 (b43_radio_read16(dev, 0x0052) & 0x000F)
-                                 | regstack[11]);
-
-               b43_write16(dev, 0x03EC, regstack[10]);
-       }
-       b43_phy_write(dev, 0x0015, regstack[0]);
+       b43_phy_write(dev, B43_PHY_LO_CTL, value);

 }
 
 static u16 lo_measure_feedthrough(struct b43_wldev *dev,
 }
 
 static u16 lo_measure_feedthrough(struct b43_wldev *dev,


@@ -366,7 +199,7 @@ static void lo_measure_txctl_values(struct b43_wldev *dev)
                if (lb_gain > 10) {
                        radio_pctl_reg = 0;
                        pga = abs(10 - lb_gain) / 6;
                if (lb_gain > 10) {
                        radio_pctl_reg = 0;
                        pga = abs(10 - lb_gain) / 6;

-                       pga = limit_value(pga, 0, 15);
+                       pga = clamp_val(pga, 0, 15);

                } else {
                        int cmp_val;
                        int tmp;
                } else {
                        int cmp_val;
                        int tmp;


@@ -438,48 +271,26 @@ static void lo_measure_txctl_values(struct b43_wldev *dev)
                b43_radio_write16(dev, 0x52, b43_radio_read16(dev, 0x52)
                                  & 0xFFF0);    /* TX bias == 0 */
        }
                b43_radio_write16(dev, 0x52, b43_radio_read16(dev, 0x52)
                                  & 0xFFF0);    /* TX bias == 0 */
        }

+       lo->txctl_measured_time = jiffies;

 }
 
 static void lo_read_power_vector(struct b43_wldev *dev)
 {
        struct b43_phy *phy = &dev->phy;
        struct b43_txpower_lo_control *lo = phy->lo_control;
 }
 
 static void lo_read_power_vector(struct b43_wldev *dev)
 {
        struct b43_phy *phy = &dev->phy;
        struct b43_txpower_lo_control *lo = phy->lo_control;

-       u16 i;
+       int i;

        u64 tmp;
        u64 power_vector = 0;
        u64 tmp;
        u64 power_vector = 0;

-       int rf_offset, bb_offset;
-       struct b43_loctl *loctl;

 
        for (i = 0; i < 8; i += 2) {
                tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x310 + i);
 
        for (i = 0; i < 8; i += 2) {
                tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x310 + i);

-               /* Clear the top byte. We get holes in the bitmap... */
-               tmp &= 0xFF;

                power_vector |= (tmp << (i * 8));
                /* Clear the vector on the device. */
                b43_shm_write16(dev, B43_SHM_SHARED, 0x310 + i, 0);
        }
                power_vector |= (tmp << (i * 8));
                /* Clear the vector on the device. */
                b43_shm_write16(dev, B43_SHM_SHARED, 0x310 + i, 0);
        }

-

        if (power_vector)
                lo->power_vector = power_vector;
        if (power_vector)
                lo->power_vector = power_vector;

-       power_vector = lo->power_vector;
-
-       for (i = 0; i < 64; i++) {
-               if (power_vector & ((u64) 1ULL << i)) {
-                       /* Now figure out which b43_loctl corresponds
-                        * to this bit.
-                        */
-                       rf_offset = i / lo->rfatt_list.len;
-                       bb_offset = i % lo->rfatt_list.len;     //FIXME?
-                       loctl =
-                           b43_get_lo_g_ctl(dev,
-                                            &lo->rfatt_list.list[rf_offset],
-                                            &lo->bbatt_list.list[bb_offset]);
-                       /* And mark it as "used", as the device told us
-                        * through the bitmap it is using it.
-                        */
-                       loctl->used = 1;
-               }
-       }
+       lo->pwr_vec_read_time = jiffies;

 }
 
 /* 802.11/LO/GPHY/MeasuringGains */
 }
 
 /* 802.11/LO/GPHY/MeasuringGains */


@@ -510,7 +321,7 @@ static void lo_measure_gain_values(struct b43_wldev *dev,
                        phy->lna_lod_gain = 1;
                        trsw_rx_gain -= 8;
                }
                        phy->lna_lod_gain = 1;
                        trsw_rx_gain -= 8;
                }

-               trsw_rx_gain = limit_value(trsw_rx_gain, 0, 0x2D);
+               trsw_rx_gain = clamp_val(trsw_rx_gain, 0, 0x2D);

                phy->pga_gain = trsw_rx_gain / 3;
                if (phy->pga_gain >= 5) {
                        phy->pga_gain -= 5;
                phy->pga_gain = trsw_rx_gain / 3;
                if (phy->pga_gain >= 5) {
                        phy->pga_gain -= 5;


@@ -609,8 +420,6 @@ static void lo_measure_setup(struct b43_wldev *dev,
                b43_phy_write(dev, B43_PHY_CCK(0x16), 0x410);
                b43_phy_write(dev, B43_PHY_CCK(0x17), 0x820);
        }
                b43_phy_write(dev, B43_PHY_CCK(0x16), 0x410);
                b43_phy_write(dev, B43_PHY_CCK(0x17), 0x820);
        }

-       if (!lo->rebuild && b43_has_hardware_pctl(phy))
-               lo_read_power_vector(dev);

        if (phy->rev >= 2) {
                sav->phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
                sav->phy_analogoverval =
        if (phy->rev >= 2) {
                sav->phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
                sav->phy_analogoverval =


@@ -691,8 +500,12 @@ static void lo_measure_setup(struct b43_wldev *dev,
        b43_radio_read16(dev, 0x51);    /* dummy read */
        if (phy->type == B43_PHYTYPE_G)
                b43_phy_write(dev, B43_PHY_CCK(0x2F), 0);
        b43_radio_read16(dev, 0x51);    /* dummy read */
        if (phy->type == B43_PHYTYPE_G)
                b43_phy_write(dev, B43_PHY_CCK(0x2F), 0);

-       if (lo->rebuild)
+
+       /* Re-measure the txctl values, if needed. */
+       if (time_before(lo->txctl_measured_time,
+                       jiffies - B43_LO_TXCTL_EXPIRE))

                lo_measure_txctl_values(dev);
                lo_measure_txctl_values(dev);

+

        if (phy->type == B43_PHYTYPE_G && phy->rev >= 3) {
                b43_phy_write(dev, B43_PHY_LO_MASK, 0xC078);
        } else {
        if (phy->type == B43_PHYTYPE_G && phy->rev >= 3) {
                b43_phy_write(dev, B43_PHY_LO_MASK, 0xC078);
        } else {


@@ -707,7 +520,6 @@ static void lo_measure_restore(struct b43_wldev *dev,
                               struct lo_g_saved_values *sav)
 {
        struct b43_phy *phy = &dev->phy;
                               struct lo_g_saved_values *sav)
 {
        struct b43_phy *phy = &dev->phy;

-       struct b43_txpower_lo_control *lo = phy->lo_control;

        u16 tmp;
 
        if (phy->rev >= 2) {
        u16 tmp;
 
        if (phy->rev >= 2) {


@@ -722,14 +534,6 @@ static void lo_measure_restore(struct b43_wldev *dev,
                tmp = (phy->pga_gain | 0xEFA0);
                b43_phy_write(dev, B43_PHY_PGACTL, tmp);
        }
                tmp = (phy->pga_gain | 0xEFA0);
                b43_phy_write(dev, B43_PHY_PGACTL, tmp);
        }

-       if (b43_has_hardware_pctl(phy)) {
-               b43_gphy_dc_lt_init(dev);
-       } else {
-               if (lo->rebuild)
-                       b43_lo_g_adjust_to(dev, 3, 2, 0);
-               else
-                       b43_lo_g_adjust(dev);
-       }

        if (phy->type == B43_PHYTYPE_G) {
                if (phy->rev >= 3)
                        b43_phy_write(dev, B43_PHY_CCK(0x2E), 0xC078);
        if (phy->type == B43_PHYTYPE_G) {
                if (phy->rev >= 3)
                        b43_phy_write(dev, B43_PHY_CCK(0x2E), 0xC078);


@@ -793,7 +597,6 @@ static int lo_probe_possible_loctls(struct b43_wldev *dev,
                                    struct b43_lo_g_statemachine *d)
 {
        struct b43_phy *phy = &dev->phy;
                                    struct b43_lo_g_statemachine *d)
 {
        struct b43_phy *phy = &dev->phy;

-       struct b43_txpower_lo_control *lo = phy->lo_control;

        struct b43_loctl test_loctl;
        struct b43_loctl orig_loctl;
        struct b43_loctl prev_loctl = {
        struct b43_loctl test_loctl;
        struct b43_loctl orig_loctl;
        struct b43_loctl prev_loctl = {


@@ -852,7 +655,7 @@ static int lo_probe_possible_loctls(struct b43_wldev *dev,
                                found_lower = 1;
                                d->lowest_feedth = feedth;
                                if ((d->nr_measured < 2) &&
                                found_lower = 1;
                                d->lowest_feedth = feedth;
                                if ((d->nr_measured < 2) &&

-                                   (!has_loopback_gain(phy) || lo->rebuild))
+                                   !has_loopback_gain(phy))

                                        break;
                        }
                }
                                        break;
                        }
                }


@@ -874,7 +677,6 @@ static void lo_probe_loctls_statemachine(struct b43_wldev *dev,
                                         int *max_rx_gain)
 {
        struct b43_phy *phy = &dev->phy;
                                         int *max_rx_gain)
 {
        struct b43_phy *phy = &dev->phy;

-       struct b43_txpower_lo_control *lo = phy->lo_control;

        struct b43_lo_g_statemachine d;
        u16 feedth;
        int found_lower;
        struct b43_lo_g_statemachine d;
        u16 feedth;
        int found_lower;


@@ -883,18 +685,18 @@ static void lo_probe_loctls_statemachine(struct b43_wldev *dev,
 
        d.nr_measured = 0;
        d.state_val_multiplier = 1;
 
        d.nr_measured = 0;
        d.state_val_multiplier = 1;

-       if (has_loopback_gain(phy) && !lo->rebuild)
+       if (has_loopback_gain(phy))

                d.state_val_multiplier = 3;
 
        memcpy(&d.min_loctl, loctl, sizeof(struct b43_loctl));
                d.state_val_multiplier = 3;
 
        memcpy(&d.min_loctl, loctl, sizeof(struct b43_loctl));

-       if (has_loopback_gain(phy) && lo->rebuild)
+       if (has_loopback_gain(phy))

                max_repeat = 4;
        do {
                b43_lo_write(dev, &d.min_loctl);
                feedth = lo_measure_feedthrough(dev, phy->lna_gain,
                                                phy->pga_gain,
                                                phy->trsw_rx_gain);
                max_repeat = 4;
        do {
                b43_lo_write(dev, &d.min_loctl);
                feedth = lo_measure_feedthrough(dev, phy->lna_gain,
                                                phy->pga_gain,
                                                phy->trsw_rx_gain);

-               if (!lo->rebuild && feedth < 0x258) {
+               if (feedth < 0x258) {

                        if (feedth >= 0x12C)
                                *max_rx_gain += 6;
                        else
                        if (feedth >= 0x12C)
                                *max_rx_gain += 6;
                        else


@@ -944,278 +746,188 @@ static void lo_probe_loctls_statemachine(struct b43_wldev *dev,
        } while (++repeat_cnt < max_repeat);
 }
 
        } while (++repeat_cnt < max_repeat);
 }
 

-#if B43_CALIB_ALL_LOCTLS
-static const struct b43_rfatt b43_full_rfatt_list_items[] = {
-       { .att = 0, .with_padmix = 0, },
-       { .att = 1, .with_padmix = 0, },
-       { .att = 2, .with_padmix = 0, },
-       { .att = 3, .with_padmix = 0, },
-       { .att = 4, .with_padmix = 0, },
-       { .att = 5, .with_padmix = 0, },
-       { .att = 6, .with_padmix = 0, },
-       { .att = 7, .with_padmix = 0, },
-       { .att = 8, .with_padmix = 0, },
-       { .att = 9, .with_padmix = 0, },
-       { .att = 10, .with_padmix = 0, },
-       { .att = 11, .with_padmix = 0, },
-       { .att = 12, .with_padmix = 0, },
-       { .att = 13, .with_padmix = 0, },
-       { .att = 14, .with_padmix = 0, },
-       { .att = 15, .with_padmix = 0, },
-       { .att = 0, .with_padmix = 1, },
-       { .att = 1, .with_padmix = 1, },
-       { .att = 2, .with_padmix = 1, },
-       { .att = 3, .with_padmix = 1, },
-       { .att = 4, .with_padmix = 1, },
-       { .att = 5, .with_padmix = 1, },
-       { .att = 6, .with_padmix = 1, },
-       { .att = 7, .with_padmix = 1, },
-       { .att = 8, .with_padmix = 1, },
-       { .att = 9, .with_padmix = 1, },
-       { .att = 10, .with_padmix = 1, },
-       { .att = 11, .with_padmix = 1, },
-       { .att = 12, .with_padmix = 1, },
-       { .att = 13, .with_padmix = 1, },
-       { .att = 14, .with_padmix = 1, },
-       { .att = 15, .with_padmix = 1, },
-};
-static const struct b43_rfatt_list b43_full_rfatt_list = {
-       .list           = b43_full_rfatt_list_items,
-       .len            = ARRAY_SIZE(b43_full_rfatt_list_items),
-};
-
-static const struct b43_bbatt b43_full_bbatt_list_items[] = {
-       { .att = 0, },
-       { .att = 1, },
-       { .att = 2, },
-       { .att = 3, },
-       { .att = 4, },
-       { .att = 5, },
-       { .att = 6, },
-       { .att = 7, },
-       { .att = 8, },
-       { .att = 9, },
-       { .att = 10, },
-       { .att = 11, },
-};
-static const struct b43_bbatt_list b43_full_bbatt_list = {
-       .list           = b43_full_bbatt_list_items,
-       .len            = ARRAY_SIZE(b43_full_bbatt_list_items),
-};
-#endif /* B43_CALIB_ALL_LOCTLS */
-
-static void lo_measure(struct b43_wldev *dev)
+static
+struct b43_lo_calib * b43_calibrate_lo_setting(struct b43_wldev *dev,
+                                              const struct b43_bbatt *bbatt,
+                                              const struct b43_rfatt *rfatt)

 {
        struct b43_phy *phy = &dev->phy;
 {
        struct b43_phy *phy = &dev->phy;

-       struct b43_txpower_lo_control *lo = phy->lo_control;

        struct b43_loctl loctl = {
                .i = 0,
                .q = 0,
        };
        struct b43_loctl loctl = {
                .i = 0,
                .q = 0,
        };

-       struct b43_loctl *ploctl;

        int max_rx_gain;
        int max_rx_gain;

-       int rfidx, bbidx;
-       const struct b43_bbatt_list *bbatt_list;
-       const struct b43_rfatt_list *rfatt_list;
-
+       struct b43_lo_calib *cal;
+       struct lo_g_saved_values uninitialized_var(saved_regs);

        /* Values from the "TXCTL Register and Value Table" */
        u16 txctl_reg;
        u16 txctl_value;
        u16 pad_mix_gain;
 
        /* Values from the "TXCTL Register and Value Table" */
        u16 txctl_reg;
        u16 txctl_value;
        u16 pad_mix_gain;
 

-       bbatt_list = &lo->bbatt_list;
-       rfatt_list = &lo->rfatt_list;
-#if B43_CALIB_ALL_LOCTLS
-       bbatt_list = &b43_full_bbatt_list;
-       rfatt_list = &b43_full_rfatt_list;
-#endif
+       saved_regs.old_channel = phy->channel;
+       b43_mac_suspend(dev);
+       lo_measure_setup(dev, &saved_regs);

 
        txctl_reg = lo_txctl_register_table(dev, &txctl_value, &pad_mix_gain);
 
 
        txctl_reg = lo_txctl_register_table(dev, &txctl_value, &pad_mix_gain);
 

-       for (rfidx = 0; rfidx < rfatt_list->len; rfidx++) {
-
-               b43_radio_write16(dev, 0x43, (b43_radio_read16(dev, 0x43)
-                                             & 0xFFF0) |
-                                 rfatt_list->list[rfidx].att);
-               b43_radio_write16(dev, txctl_reg,
-                                 (b43_radio_read16(dev, txctl_reg)
-                                  & ~txctl_value)
-                                 | (rfatt_list->list[rfidx].with_padmix ?
-                                    txctl_value : 0));
-
-               for (bbidx = 0; bbidx < bbatt_list->len; bbidx++) {
-                       if (lo->rebuild) {
-#if B43_CALIB_ALL_LOCTLS
-                               ploctl = b43_get_lo_g_ctl(dev,
-                                                         &rfatt_list->list[rfidx],
-                                                         &bbatt_list->list[bbidx]);
-#else
-                               ploctl = b43_get_lo_g_ctl_nopadmix(dev,
-                                                                  &rfatt_list->
-                                                                  list[rfidx],
-                                                                  &bbatt_list->
-                                                                  list[bbidx]);
-#endif
-                       } else {
-                               ploctl = b43_get_lo_g_ctl(dev,
-                                                         &rfatt_list->list[rfidx],
-                                                         &bbatt_list->list[bbidx]);
-                               if (!ploctl->used)
-                                       continue;
-                       }
-                       memcpy(&loctl, ploctl, sizeof(loctl));
-                       loctl.i = 0;
-                       loctl.q = 0;
-
-                       max_rx_gain = rfatt_list->list[rfidx].att * 2;
-                       max_rx_gain += bbatt_list->list[bbidx].att / 2;
-                       if (rfatt_list->list[rfidx].with_padmix)
-                               max_rx_gain -= pad_mix_gain;
-                       if (has_loopback_gain(phy))
-                               max_rx_gain += phy->max_lb_gain;
-                       lo_measure_gain_values(dev, max_rx_gain,
-                                              has_loopback_gain(phy));
-
-                       b43_phy_set_baseband_attenuation(dev,
-                                                        bbatt_list->list[bbidx].att);
-                       lo_probe_loctls_statemachine(dev, &loctl, &max_rx_gain);
-                       if (phy->type == B43_PHYTYPE_B) {
-                               loctl.i++;
-                               loctl.q++;
-                       }
-                       b43_loctl_set_calibrated(&loctl, 1);
-                       memcpy(ploctl, &loctl, sizeof(loctl));
-               }
-       }
-}
-
-#if B43_DEBUG
-static void do_validate_loctl(struct b43_wldev *dev, struct b43_loctl *control)
-{
-       const int is_initializing = (b43_status(dev) == B43_STAT_UNINIT);
-       int i = control->i;
-       int q = control->q;
+       b43_radio_write16(dev, 0x43,
+                         (b43_radio_read16(dev, 0x43) & 0xFFF0)
+                         | rfatt->att);
+       b43_radio_write16(dev, txctl_reg,
+                         (b43_radio_read16(dev, txctl_reg) & ~txctl_value)
+                         | (rfatt->with_padmix) ? txctl_value : 0);

 
 

-       if (b43_loctl_is_calibrated(control)) {
-               if ((abs(i) > 16) || (abs(q) > 16))
-                       goto error;
-       } else {
-               if (control->used)
-                       goto error;
-               if (dev->phy.lo_control->rebuild) {
-                       control->i = 0;
-                       control->q = 0;
-                       if ((i != B43_LOCTL_POISON) ||
-                           (q != B43_LOCTL_POISON))
-                               goto error;
-               }
+       max_rx_gain = rfatt->att * 2;
+       max_rx_gain += bbatt->att / 2;
+       if (rfatt->with_padmix)
+               max_rx_gain -= pad_mix_gain;
+       if (has_loopback_gain(phy))
+               max_rx_gain += phy->max_lb_gain;
+       lo_measure_gain_values(dev, max_rx_gain,
+                              has_loopback_gain(phy));
+
+       b43_phy_set_baseband_attenuation(dev, bbatt->att);
+       lo_probe_loctls_statemachine(dev, &loctl, &max_rx_gain);
+
+       lo_measure_restore(dev, &saved_regs);
+       b43_mac_enable(dev);
+
+       if (b43_debug(dev, B43_DBG_LO)) {
+               b43dbg(dev->wl, "LO: Calibrated for BB(%u), RF(%u,%u) "
+                      "=> I=%d Q=%d\n",
+                      bbatt->att, rfatt->att, rfatt->with_padmix,
+                      loctl.i, loctl.q);

        }
        }

-       if (is_initializing && control->used)
-               goto error;
-
-       return;
-error:
-       b43err(dev->wl, "LO control pair validation failed "
-              "(I: %d, Q: %d, used %u, calib: %u, initing: %d)\n",
-              i, q, control->used,
-              b43_loctl_is_calibrated(control),
-              is_initializing);
-}

 
 

-static void validate_all_loctls(struct b43_wldev *dev)
-{
-       b43_call_for_each_loctl(dev, do_validate_loctl);
-}
-
-static void do_reset_calib(struct b43_wldev *dev, struct b43_loctl *control)
-{
-       if (dev->phy.lo_control->rebuild ||
-           control->used) {
-               b43_loctl_set_calibrated(control, 0);
-               control->i = B43_LOCTL_POISON;
-               control->q = B43_LOCTL_POISON;
+       cal = kmalloc(sizeof(*cal), GFP_KERNEL);
+       if (!cal) {
+               b43warn(dev->wl, "LO calib: out of memory\n");
+               return NULL;

        }
        }

+       memcpy(&cal->bbatt, bbatt, sizeof(*bbatt));
+       memcpy(&cal->rfatt, rfatt, sizeof(*rfatt));
+       memcpy(&cal->ctl, &loctl, sizeof(loctl));
+       cal->calib_time = jiffies;
+       INIT_LIST_HEAD(&cal->list);
+
+       return cal;

 }
 
 }
 

-static void reset_all_loctl_calibration_states(struct b43_wldev *dev)
+/* Get a calibrated LO setting for the given attenuation values.
+ * Might return a NULL pointer under OOM! */
+static
+struct b43_lo_calib * b43_get_calib_lo_settings(struct b43_wldev *dev,
+                                               const struct b43_bbatt *bbatt,
+                                               const struct b43_rfatt *rfatt)

 {
 {

-       b43_call_for_each_loctl(dev, do_reset_calib);
+       struct b43_txpower_lo_control *lo = dev->phy.lo_control;
+       struct b43_lo_calib *c;
+
+       c = b43_find_lo_calib(lo, bbatt, rfatt);
+       if (c)
+               return c;
+       /* Not in the list of calibrated LO settings.
+        * Calibrate it now. */
+       c = b43_calibrate_lo_setting(dev, bbatt, rfatt);
+       if (!c)
+               return NULL;
+       list_add(&c->list, &lo->calib_list);
+
+       return c;

 }
 
 }
 

-#else /* B43_DEBUG */
-static inline void validate_all_loctls(struct b43_wldev *dev) { }
-static inline void reset_all_loctl_calibration_states(struct b43_wldev *dev) { }
-#endif /* B43_DEBUG */
-
-void b43_lo_g_measure(struct b43_wldev *dev)
+void b43_gphy_dc_lt_init(struct b43_wldev *dev, bool update_all)

 {
        struct b43_phy *phy = &dev->phy;
 {
        struct b43_phy *phy = &dev->phy;

-       struct lo_g_saved_values uninitialized_var(sav);
-
-       B43_WARN_ON((phy->type != B43_PHYTYPE_B) &&
-                   (phy->type != B43_PHYTYPE_G));
-
-       sav.old_channel = phy->channel;
-       lo_measure_setup(dev, &sav);
-       reset_all_loctl_calibration_states(dev);
-       lo_measure(dev);
-       lo_measure_restore(dev, &sav);
-
-       validate_all_loctls(dev);
+       struct b43_txpower_lo_control *lo = phy->lo_control;
+       int i;
+       int rf_offset, bb_offset;
+       const struct b43_rfatt *rfatt;
+       const struct b43_bbatt *bbatt;
+       u64 power_vector;
+       bool table_changed = 0;

 
 

-       phy->lo_control->lo_measured = 1;
-       phy->lo_control->rebuild = 0;
-}
+       BUILD_BUG_ON(B43_DC_LT_SIZE != 32);
+       B43_WARN_ON(lo->rfatt_list.len * lo->bbatt_list.len > 64);

 
 

-#if B43_DEBUG
-static void validate_loctl_calibration(struct b43_wldev *dev,
-                                      struct b43_loctl *loctl,
-                                      struct b43_rfatt *rfatt,
-                                      struct b43_bbatt *bbatt)
-{
-       if (b43_loctl_is_calibrated(loctl))
-               return;
-       if (!dev->phy.lo_control->lo_measured) {
-               /* On init we set the attenuation values before we
-                * calibrated the LO. I guess that's OK. */
-               return;
+       power_vector = lo->power_vector;
+       if (!update_all && !power_vector)
+               return; /* Nothing to do. */
+
+       /* Suspend the MAC now to avoid continuous suspend/enable
+        * cycles in the loop. */
+       b43_mac_suspend(dev);
+
+       for (i = 0; i < B43_DC_LT_SIZE * 2; i++) {
+               struct b43_lo_calib *cal;
+               int idx;
+               u16 val;
+
+               if (!update_all && !(power_vector & (((u64)1ULL) << i)))
+                       continue;
+               /* Update the table entry for this power_vector bit.
+                * The table rows are RFatt entries and columns are BBatt. */
+               bb_offset = i / lo->rfatt_list.len;
+               rf_offset = i % lo->rfatt_list.len;
+               bbatt = &(lo->bbatt_list.list[bb_offset]);
+               rfatt = &(lo->rfatt_list.list[rf_offset]);
+
+               cal = b43_calibrate_lo_setting(dev, bbatt, rfatt);
+               if (!cal) {
+                       b43warn(dev->wl, "LO: Could not "
+                               "calibrate DC table entry\n");
+                       continue;
+               }
+               /*FIXME: Is Q really in the low nibble? */
+               val = (u8)(cal->ctl.q);
+               val |= ((u8)(cal->ctl.i)) << 4;
+               kfree(cal);
+
+               /* Get the index into the hardware DC LT. */
+               idx = i / 2;
+               /* Change the table in memory. */
+               if (i % 2) {
+                       /* Change the high byte. */
+                       lo->dc_lt[idx] = (lo->dc_lt[idx] & 0x00FF)
+                                        | ((val & 0x00FF) << 8);
+               } else {
+                       /* Change the low byte. */
+                       lo->dc_lt[idx] = (lo->dc_lt[idx] & 0xFF00)
+                                        | (val & 0x00FF);
+               }
+               table_changed = 1;

        }
        }

-       b43err(dev->wl, "Adjusting Local Oscillator to an uncalibrated "
-              "control pair: rfatt=%u,%spadmix bbatt=%u\n",
-              rfatt->att,
-              (rfatt->with_padmix) ? "" : "no-",
-              bbatt->att);
-}
-#else
-static inline void validate_loctl_calibration(struct b43_wldev *dev,
-                                             struct b43_loctl *loctl,
-                                             struct b43_rfatt *rfatt,
-                                             struct b43_bbatt *bbatt)
-{
+       if (table_changed) {
+               /* The table changed in memory. Update the hardware table. */
+               for (i = 0; i < B43_DC_LT_SIZE; i++)
+                       b43_phy_write(dev, 0x3A0 + i, lo->dc_lt[i]);
+       }
+       b43_mac_enable(dev);

 }
 }

-#endif

 
 

-static inline void fixup_rfatt_for_txcontrol(struct b43_rfatt *rf,
-                                            u8 tx_control)
+/* Fixup the RF attenuation value for the case where we are
+ * using the PAD mixer. */
+static inline void b43_lo_fixup_rfatt(struct b43_rfatt *rf)

 {
 {

-       if (tx_control & B43_TXCTL_TXMIX) {
-               if (rf->att < 5)
-                       rf->att = 4;
-       }
+       if (!rf->with_padmix)
+               return;
+       if ((rf->att != 1) && (rf->att != 2) && (rf->att != 3))
+               rf->att = 4;

 }
 
 void b43_lo_g_adjust(struct b43_wldev *dev)
 {
        struct b43_phy *phy = &dev->phy;
 }
 
 void b43_lo_g_adjust(struct b43_wldev *dev)
 {
        struct b43_phy *phy = &dev->phy;

+       struct b43_lo_calib *cal;

        struct b43_rfatt rf;
        struct b43_rfatt rf;

-       struct b43_loctl *loctl;

 
        memcpy(&rf, &phy->rfatt, sizeof(rf));
 
        memcpy(&rf, &phy->rfatt, sizeof(rf));

-       fixup_rfatt_for_txcontrol(&rf, phy->tx_control);
+       b43_lo_fixup_rfatt(&rf);

 
 

-       loctl = b43_get_lo_g_ctl(dev, &rf, &phy->bbatt);
-       validate_loctl_calibration(dev, loctl, &rf, &phy->bbatt);
-       b43_lo_write(dev, loctl);
+       cal = b43_get_calib_lo_settings(dev, &phy->bbatt, &rf);
+       if (!cal)
+               return;
+       b43_lo_write(dev, &cal->ctl);

 }
 
 void b43_lo_g_adjust_to(struct b43_wldev *dev,
 }
 
 void b43_lo_g_adjust_to(struct b43_wldev *dev,


@@ -1223,39 +935,102 @@ void b43_lo_g_adjust_to(struct b43_wldev *dev,
 {
        struct b43_rfatt rf;
        struct b43_bbatt bb;
 {
        struct b43_rfatt rf;
        struct b43_bbatt bb;

-       struct b43_loctl *loctl;
+       struct b43_lo_calib *cal;

 
        memset(&rf, 0, sizeof(rf));
        memset(&bb, 0, sizeof(bb));
        rf.att = rfatt;
        bb.att = bbatt;
 
        memset(&rf, 0, sizeof(rf));
        memset(&bb, 0, sizeof(bb));
        rf.att = rfatt;
        bb.att = bbatt;

-       fixup_rfatt_for_txcontrol(&rf, tx_control);
-       loctl = b43_get_lo_g_ctl(dev, &rf, &bb);
-       validate_loctl_calibration(dev, loctl, &rf, &bb);
-       b43_lo_write(dev, loctl);
+       b43_lo_fixup_rfatt(&rf);
+       cal = b43_get_calib_lo_settings(dev, &bb, &rf);
+       if (!cal)
+               return;
+       b43_lo_write(dev, &cal->ctl);

 }
 
 }
 

-static void do_mark_unused(struct b43_wldev *dev, struct b43_loctl *control)
+/* Periodic LO maintanance work */
+void b43_lo_g_maintanance_work(struct b43_wldev *dev)

 {
 {

-       control->used = 0;
+       struct b43_phy *phy = &dev->phy;
+       struct b43_txpower_lo_control *lo = phy->lo_control;
+       unsigned long now;
+       unsigned long expire;
+       struct b43_lo_calib *cal, *tmp;
+       bool current_item_expired = 0;
+       bool hwpctl;
+
+       if (!lo)
+               return;
+       now = jiffies;
+       hwpctl = b43_has_hardware_pctl(phy);
+
+       if (hwpctl) {
+               /* Read the power vector and update it, if needed. */
+               expire = now - B43_LO_PWRVEC_EXPIRE;
+               if (time_before(lo->pwr_vec_read_time, expire)) {
+                       lo_read_power_vector(dev);
+                       b43_gphy_dc_lt_init(dev, 0);
+               }
+               //FIXME Recalc the whole DC table from time to time?
+       }
+
+       if (hwpctl)
+               return;
+       /* Search for expired LO settings. Remove them.
+        * Recalibrate the current setting, if expired. */
+       expire = now - B43_LO_CALIB_EXPIRE;
+       list_for_each_entry_safe(cal, tmp, &lo->calib_list, list) {
+               if (!time_before(cal->calib_time, expire))
+                       continue;
+               /* This item expired. */
+               if (b43_compare_bbatt(&cal->bbatt, &phy->bbatt) &&
+                   b43_compare_rfatt(&cal->rfatt, &phy->rfatt)) {
+                       B43_WARN_ON(current_item_expired);
+                       current_item_expired = 1;
+               }
+               if (b43_debug(dev, B43_DBG_LO)) {
+                       b43dbg(dev->wl, "LO: Item BB(%u), RF(%u,%u), "
+                              "I=%d, Q=%d expired\n",
+                              cal->bbatt.att, cal->rfatt.att,
+                              cal->rfatt.with_padmix,
+                              cal->ctl.i, cal->ctl.q);
+               }
+               list_del(&cal->list);
+               kfree(cal);
+       }
+       if (current_item_expired || unlikely(list_empty(&lo->calib_list))) {
+               /* Recalibrate currently used LO setting. */
+               if (b43_debug(dev, B43_DBG_LO))
+                       b43dbg(dev->wl, "LO: Recalibrating current LO setting\n");
+               cal = b43_calibrate_lo_setting(dev, &phy->bbatt, &phy->rfatt);
+               if (cal) {
+                       list_add(&cal->list, &lo->calib_list);
+                       b43_lo_write(dev, &cal->ctl);
+               } else
+                       b43warn(dev->wl, "Failed to recalibrate current LO setting\n");
+       }

 }
 
 }
 

-void b43_lo_g_ctl_mark_all_unused(struct b43_wldev *dev)
+void b43_lo_g_cleanup(struct b43_wldev *dev)

 {
 {

-       struct b43_phy *phy = &dev->phy;
-       struct b43_txpower_lo_control *lo = phy->lo_control;
+       struct b43_txpower_lo_control *lo = dev->phy.lo_control;
+       struct b43_lo_calib *cal, *tmp;

 
 

-       b43_call_for_each_loctl(dev, do_mark_unused);
-       lo->rebuild = 1;
+       if (!lo)
+               return;
+       list_for_each_entry_safe(cal, tmp, &lo->calib_list, list) {
+               list_del(&cal->list);
+               kfree(cal);
+       }

 }
 
 }
 

-void b43_lo_g_ctl_mark_cur_used(struct b43_wldev *dev)
+/* LO Initialization */
+void b43_lo_g_init(struct b43_wldev *dev)

 {
        struct b43_phy *phy = &dev->phy;
 {
        struct b43_phy *phy = &dev->phy;

-       struct b43_rfatt rf;

 
 

-       memcpy(&rf, &phy->rfatt, sizeof(rf));
-       fixup_rfatt_for_txcontrol(&rf, phy->tx_control);
-
-       b43_get_lo_g_ctl(dev, &rf, &phy->bbatt)->used = 1;
+       if (b43_has_hardware_pctl(phy)) {
+               lo_read_power_vector(dev);
+               b43_gphy_dc_lt_init(dev, 1);
+       }

 }
 }