summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/b43/phy_n.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/b43/phy_n.c')
-rw-r--r--drivers/net/wireless/b43/phy_n.c211
1 files changed, 124 insertions, 87 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 5a725703770c..dfec5496055e 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -29,6 +29,8 @@
#include "b43.h"
#include "phy_n.h"
#include "tables_nphy.h"
+#include "radio_2055.h"
+#include "radio_2056.h"
#include "main.h"
struct nphy_txgains {
@@ -73,21 +75,12 @@ static void b43_nphy_rf_control_override(struct b43_wldev *dev, u16 field,
u16 value, u8 core, bool off);
static void b43_nphy_rf_control_intc_override(struct b43_wldev *dev, u8 field,
u16 value, u8 core);
-static int nphy_channel_switch(struct b43_wldev *dev, unsigned int channel);
-static inline bool b43_empty_chanspec(struct b43_chanspec *chanspec)
+static inline bool b43_channel_type_is_40mhz(
+ enum nl80211_channel_type channel_type)
{
- return !chanspec->channel && !chanspec->sideband &&
- !chanspec->b_width && !chanspec->b_freq;
-}
-
-static inline bool b43_eq_chanspecs(struct b43_chanspec *chanspec1,
- struct b43_chanspec *chanspec2)
-{
- return (chanspec1->channel == chanspec2->channel &&
- chanspec1->sideband == chanspec2->sideband &&
- chanspec1->b_width == chanspec2->b_width &&
- chanspec1->b_freq == chanspec2->b_freq);
+ return (channel_type == NL80211_CHAN_HT40MINUS ||
+ channel_type == NL80211_CHAN_HT40PLUS);
}
void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna)
@@ -223,7 +216,7 @@ static void b43_radio_init2055_post(struct b43_wldev *dev)
if (i)
b43err(dev->wl, "radio post init timeout\n");
b43_radio_mask(dev, B2055_CAL_LPOCTL, 0xFF7F);
- nphy_channel_switch(dev, dev->phy.channel);
+ b43_switch_channel(dev, dev->phy.channel);
b43_radio_write(dev, B2055_C1_RX_BB_LPF, 0x9);
b43_radio_write(dev, B2055_C2_RX_BB_LPF, 0x9);
b43_radio_write(dev, B2055_C1_RX_BB_MIDACHP, 0x83);
@@ -782,7 +775,7 @@ static void b43_nphy_spur_workaround(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
- u8 channel = nphy->radio_chanspec.channel;
+ u8 channel = dev->phy.channel;
int tone[2] = { 57, 58 };
u32 noise[2] = { 0x3FF, 0x3FF };
@@ -856,9 +849,9 @@ static void b43_nphy_adjust_lna_gain_table(struct b43_wldev *dev)
gain[0] = 6;
gain[1] = 6;
} else {
- tmp = 40370 - 315 * nphy->radio_chanspec.channel;
+ tmp = 40370 - 315 * dev->phy.channel;
gain[0] = ((tmp >> 13) + ((tmp >> 12) & 1));
- tmp = 23242 - 224 * nphy->radio_chanspec.channel;
+ tmp = 23242 - 224 * dev->phy.channel;
gain[1] = ((tmp >> 13) + ((tmp >> 12) & 1));
}
} else {
@@ -893,7 +886,7 @@ static void b43_nphy_adjust_lna_gain_table(struct b43_wldev *dev)
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/WorkaroundsGainCtrl */
-static void b43_nphy_gain_crtl_workarounds(struct b43_wldev *dev)
+static void b43_nphy_gain_ctrl_workarounds(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
u8 i, j;
@@ -1094,11 +1087,12 @@ static void b43_nphy_workarounds(struct b43_wldev *dev)
b43_nphy_set_rf_sequence(dev, 0, events1, delays1, 7);
b43_nphy_set_rf_sequence(dev, 1, events2, delays2, 7);
- b43_nphy_gain_crtl_workarounds(dev);
+ b43_nphy_gain_ctrl_workarounds(dev);
if (dev->phy.rev < 2) {
if (b43_phy_read(dev, B43_NPHY_RXCTL) & 0x2)
- ; /*TODO: b43_mhf(dev, 2, 0x0010, 0x0010, 3);*/
+ b43_hf_write(dev, b43_hf_read(dev) |
+ B43_HF_MLADVW);
} else if (dev->phy.rev == 2) {
b43_phy_write(dev, B43_NPHY_CRSCHECK2, 0);
b43_phy_write(dev, B43_NPHY_CRSCHECK3, 0);
@@ -1182,7 +1176,7 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max,
len = bw << 1;
}
- samples = kzalloc(len * sizeof(struct b43_c32), GFP_KERNEL);
+ samples = kcalloc(len, sizeof(struct b43_c32), GFP_KERNEL);
if (!samples) {
b43err(dev->wl, "allocation for samples generation failed\n");
return 0;
@@ -2083,12 +2077,12 @@ static void b43_nphy_restore_rssi_cal(struct b43_wldev *dev)
u16 *rssical_phy_regs = NULL;
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
- if (b43_empty_chanspec(&nphy->rssical_chanspec_2G))
+ if (!nphy->rssical_chanspec_2G.center_freq)
return;
rssical_radio_regs = nphy->rssical_cache.rssical_radio_regs_2G;
rssical_phy_regs = nphy->rssical_cache.rssical_phy_regs_2G;
} else {
- if (b43_empty_chanspec(&nphy->rssical_chanspec_5G))
+ if (!nphy->rssical_chanspec_5G.center_freq)
return;
rssical_radio_regs = nphy->rssical_cache.rssical_radio_regs_5G;
rssical_phy_regs = nphy->rssical_cache.rssical_phy_regs_5G;
@@ -2544,8 +2538,9 @@ static void b43_nphy_save_cal(struct b43_wldev *dev)
txcal_radio_regs[2] = b43_radio_read(dev, 0x8D);
txcal_radio_regs[3] = b43_radio_read(dev, 0xBC);
}
- *iqcal_chanspec = nphy->radio_chanspec;
- b43_ntab_write_bulk(dev, B43_NTAB16(15, 80), 8, table);
+ iqcal_chanspec->center_freq = dev->phy.channel_freq;
+ iqcal_chanspec->channel_type = dev->phy.channel_type;
+ b43_ntab_read_bulk(dev, B43_NTAB16(15, 80), 8, table);
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 0);
@@ -2565,12 +2560,12 @@ static void b43_nphy_restore_cal(struct b43_wldev *dev)
struct b43_phy_n_iq_comp *rxcal_coeffs = NULL;
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
- if (b43_empty_chanspec(&nphy->iqcal_chanspec_2G))
+ if (!nphy->iqcal_chanspec_2G.center_freq)
return;
table = nphy->cal_cache.txcal_coeffs_2G;
loft = &nphy->cal_cache.txcal_coeffs_2G[5];
} else {
- if (b43_empty_chanspec(&nphy->iqcal_chanspec_5G))
+ if (!nphy->iqcal_chanspec_5G.center_freq)
return;
table = nphy->cal_cache.txcal_coeffs_5G;
loft = &nphy->cal_cache.txcal_coeffs_5G[5];
@@ -2815,7 +2810,10 @@ static int b43_nphy_cal_tx_iq_lo(struct b43_wldev *dev,
b43_ntab_read_bulk(dev, B43_NTAB16(15, 96), length,
nphy->txiqlocal_bestc);
nphy->txiqlocal_coeffsvalid = true;
- nphy->txiqlocal_chanspec = nphy->radio_chanspec;
+ nphy->txiqlocal_chanspec.center_freq =
+ dev->phy.channel_freq;
+ nphy->txiqlocal_chanspec.channel_type =
+ dev->phy.channel_type;
} else {
length = 11;
if (dev->phy.rev < 3)
@@ -2851,7 +2849,8 @@ static void b43_nphy_reapply_tx_cal_coeffs(struct b43_wldev *dev)
bool equal = true;
if (!nphy->txiqlocal_coeffsvalid ||
- b43_eq_chanspecs(&nphy->txiqlocal_chanspec, &nphy->radio_chanspec))
+ nphy->txiqlocal_chanspec.center_freq != dev->phy.channel_freq ||
+ nphy->txiqlocal_chanspec.channel_type != dev->phy.channel_type)
return;
b43_ntab_read_bulk(dev, B43_NTAB16(15, 80), 7, buffer);
@@ -3073,6 +3072,57 @@ static int b43_nphy_cal_rx_iq(struct b43_wldev *dev,
return b43_nphy_rev2_cal_rx_iq(dev, target, type, debug);
}
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MacPhyClkSet */
+static void b43_nphy_mac_phy_clock_set(struct b43_wldev *dev, bool on)
+{
+ u32 tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
+ if (on)
+ tmslow |= SSB_TMSLOW_PHYCLK;
+ else
+ tmslow &= ~SSB_TMSLOW_PHYCLK;
+ ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
+}
+
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxCoreSetState */
+static void b43_nphy_set_rx_core_state(struct b43_wldev *dev, u8 mask)
+{
+ struct b43_phy *phy = &dev->phy;
+ struct b43_phy_n *nphy = phy->n;
+ u16 buf[16];
+
+ nphy->phyrxchain = mask;
+
+ if (0 /* FIXME clk */)
+ return;
+
+ b43_mac_suspend(dev);
+
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, true);
+
+ b43_phy_maskset(dev, B43_NPHY_RFSEQCA, ~B43_NPHY_RFSEQCA_RXEN,
+ (mask & 0x3) << B43_NPHY_RFSEQCA_RXEN_SHIFT);
+
+ if ((mask & 0x3) != 0x3) {
+ b43_phy_write(dev, B43_NPHY_HPANT_SWTHRES, 1);
+ if (dev->phy.rev >= 3) {
+ /* TODO */
+ }
+ } else {
+ b43_phy_write(dev, B43_NPHY_HPANT_SWTHRES, 0x1E);
+ if (dev->phy.rev >= 3) {
+ /* TODO */
+ }
+ }
+
+ b43_nphy_force_rf_sequence(dev, B43_RFSEQ_RESET2RX);
+
+ if (nphy->hang_avoid)
+ b43_nphy_stay_in_carrier_search(dev, false);
+
+ b43_mac_enable(dev);
+}
+
/*
* Init N-PHY
* http://bcm-v4.sipsolutions.net/802.11/PHY/Init/N
@@ -3173,7 +3223,7 @@ int b43_phy_initn(struct b43_wldev *dev)
b43_phy_write(dev, B43_NPHY_BBCFG, tmp & ~B43_NPHY_BBCFG_RSTCCA);
b43_nphy_bmac_clock_fgc(dev, 0);
- /* TODO N PHY MAC PHY Clock Set with argument 1 */
+ b43_nphy_mac_phy_clock_set(dev, true);
b43_nphy_pa_override(dev, false);
b43_nphy_force_rf_sequence(dev, B43_RFSEQ_RX2TX);
@@ -3199,18 +3249,16 @@ int b43_phy_initn(struct b43_wldev *dev)
}
if (nphy->phyrxchain != 3)
- ;/* TODO N PHY RX Core Set State with phyrxchain as argument */
+ b43_nphy_set_rx_core_state(dev, nphy->phyrxchain);
if (nphy->mphase_cal_phase_id > 0)
;/* TODO PHY Periodic Calibration Multi-Phase Restart */
do_rssi_cal = false;
if (phy->rev >= 3) {
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
- do_rssi_cal =
- b43_empty_chanspec(&nphy->rssical_chanspec_2G);
+ do_rssi_cal = !nphy->rssical_chanspec_2G.center_freq;
else
- do_rssi_cal =
- b43_empty_chanspec(&nphy->rssical_chanspec_5G);
+ do_rssi_cal = !nphy->rssical_chanspec_5G.center_freq;
if (do_rssi_cal)
b43_nphy_rssi_cal(dev);
@@ -3222,9 +3270,9 @@ int b43_phy_initn(struct b43_wldev *dev)
if (!((nphy->measure_hold & 0x6) != 0)) {
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
- do_cal = b43_empty_chanspec(&nphy->iqcal_chanspec_2G);
+ do_cal = !nphy->iqcal_chanspec_2G.center_freq;
else
- do_cal = b43_empty_chanspec(&nphy->iqcal_chanspec_5G);
+ do_cal = !nphy->iqcal_chanspec_5G.center_freq;
if (nphy->mute)
do_cal = false;
@@ -3272,24 +3320,25 @@ int b43_phy_initn(struct b43_wldev *dev)
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/ChanspecSetup */
-static void b43_nphy_chanspec_setup(struct b43_wldev *dev,
+static void b43_nphy_channel_setup(struct b43_wldev *dev,
const struct b43_phy_n_sfo_cfg *e,
- struct b43_chanspec chanspec)
+ struct ieee80211_channel *new_channel)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_n *nphy = dev->phy.n;
- u16 tmp;
+ u16 old_band_5ghz;
u32 tmp32;
- tmp = b43_phy_read(dev, B43_NPHY_BANDCTL) & B43_NPHY_BANDCTL_5GHZ;
- if (chanspec.b_freq == 1 && tmp == 0) {
+ old_band_5ghz =
+ b43_phy_read(dev, B43_NPHY_BANDCTL) & B43_NPHY_BANDCTL_5GHZ;
+ if (new_channel->band == IEEE80211_BAND_5GHZ && !old_band_5ghz) {
tmp32 = b43_read32(dev, B43_MMIO_PSM_PHY_HDR);
b43_write32(dev, B43_MMIO_PSM_PHY_HDR, tmp32 | 4);
b43_phy_set(dev, B43_PHY_B_BBCFG, 0xC000);
b43_write32(dev, B43_MMIO_PSM_PHY_HDR, tmp32);
b43_phy_set(dev, B43_NPHY_BANDCTL, B43_NPHY_BANDCTL_5GHZ);
- } else if (chanspec.b_freq == 1) {
+ } else if (new_channel->band == IEEE80211_BAND_2GHZ && old_band_5ghz) {
b43_phy_mask(dev, B43_NPHY_BANDCTL, ~B43_NPHY_BANDCTL_5GHZ);
tmp32 = b43_read32(dev, B43_MMIO_PSM_PHY_HDR);
b43_write32(dev, B43_MMIO_PSM_PHY_HDR, tmp32 | 4);
@@ -3299,19 +3348,12 @@ static void b43_nphy_chanspec_setup(struct b43_wldev *dev,
b43_chantab_phy_upload(dev, e);
- tmp = chanspec.channel;
- if (chanspec.b_freq == 1)
- tmp |= 0x0100;
- if (chanspec.b_width == 3)
- tmp |= 0x0200;
- b43_shm_write16(dev, B43_SHM_SHARED, 0xA0, tmp);
-
- if (nphy->radio_chanspec.channel == 14) {
+ if (new_channel->hw_value == 14) {
b43_nphy_classifier(dev, 2, 0);
b43_phy_set(dev, B43_PHY_B_TEST, 0x0800);
} else {
b43_nphy_classifier(dev, 2, 2);
- if (chanspec.b_freq == 2)
+ if (new_channel->band == IEEE80211_BAND_2GHZ)
b43_phy_mask(dev, B43_PHY_B_TEST, ~0x840);
}
@@ -3334,70 +3376,62 @@ static void b43_nphy_chanspec_setup(struct b43_wldev *dev,
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/SetChanspec */
-static int b43_nphy_set_chanspec(struct b43_wldev *dev,
- struct b43_chanspec chanspec)
+static int b43_nphy_set_channel(struct b43_wldev *dev,
+ struct ieee80211_channel *channel,
+ enum nl80211_channel_type channel_type)
{
+ struct b43_phy *phy = &dev->phy;
struct b43_phy_n *nphy = dev->phy.n;
const struct b43_nphy_channeltab_entry_rev2 *tabent_r2;
const struct b43_nphy_channeltab_entry_rev3 *tabent_r3;
u8 tmp;
- u8 channel = chanspec.channel;
if (dev->phy.rev >= 3) {
- /* TODO */
+ tabent_r3 = b43_nphy_get_chantabent_rev3(dev,
+ channel->center_freq);
tabent_r3 = NULL;
if (!tabent_r3)
return -ESRCH;
} else {
- tabent_r2 = b43_nphy_get_chantabent_rev2(dev, channel);
+ tabent_r2 = b43_nphy_get_chantabent_rev2(dev,
+ channel->hw_value);
if (!tabent_r2)
return -ESRCH;
}
- nphy->radio_chanspec = chanspec;
+ /* Channel is set later in common code, but we need to set it on our
+ own to let this function's subcalls work properly. */
+ phy->channel = channel->hw_value;
+ phy->channel_freq = channel->center_freq;
- if (chanspec.b_width != nphy->b_width)
- ; /* TODO: BMAC BW Set (chanspec.b_width) */
+ if (b43_channel_type_is_40mhz(phy->channel_type) !=
+ b43_channel_type_is_40mhz(channel_type))
+ ; /* TODO: BMAC BW Set (channel_type) */
- /* TODO: use defines */
- if (chanspec.b_width == 3) {
- if (chanspec.sideband == 2)
- b43_phy_set(dev, B43_NPHY_RXCTL,
- B43_NPHY_RXCTL_BSELU20);
- else
- b43_phy_mask(dev, B43_NPHY_RXCTL,
- ~B43_NPHY_RXCTL_BSELU20);
- }
+ if (channel_type == NL80211_CHAN_HT40PLUS)
+ b43_phy_set(dev, B43_NPHY_RXCTL,
+ B43_NPHY_RXCTL_BSELU20);
+ else if (channel_type == NL80211_CHAN_HT40MINUS)
+ b43_phy_mask(dev, B43_NPHY_RXCTL,
+ ~B43_NPHY_RXCTL_BSELU20);
if (dev->phy.rev >= 3) {
- tmp = (chanspec.b_freq == 1) ? 4 : 0;
+ tmp = (channel->band == IEEE80211_BAND_5GHZ) ? 4 : 0;
b43_radio_maskset(dev, 0x08, 0xFFFB, tmp);
/* TODO: PHY Radio2056 Setup (dev, tabent_r3); */
- b43_nphy_chanspec_setup(dev, &(tabent_r3->phy_regs), chanspec);
+ b43_nphy_channel_setup(dev, &(tabent_r3->phy_regs), channel);
} else {
- tmp = (chanspec.b_freq == 1) ? 0x0020 : 0x0050;
+ tmp = (channel->band == IEEE80211_BAND_5GHZ) ? 0x0020 : 0x0050;
b43_radio_maskset(dev, B2055_MASTER1, 0xFF8F, tmp);
b43_radio_2055_setup(dev, tabent_r2);
- b43_nphy_chanspec_setup(dev, &(tabent_r2->phy_regs), chanspec);
+ b43_nphy_channel_setup(dev, &(tabent_r2->phy_regs), channel);
}
return 0;
}
-/* Tune the hardware to a new channel */
-static int nphy_channel_switch(struct b43_wldev *dev, unsigned int channel)
-{
- struct b43_phy_n *nphy = dev->phy.n;
-
- struct b43_chanspec chanspec;
- chanspec = nphy->radio_chanspec;
- chanspec.channel = channel;
-
- return b43_nphy_set_chanspec(dev, chanspec);
-}
-
static int b43_nphy_op_allocate(struct b43_wldev *dev)
{
struct b43_phy_n *nphy;
@@ -3518,7 +3552,7 @@ static void b43_nphy_op_software_rfkill(struct b43_wldev *dev,
} else {
if (dev->phy.rev >= 3) {
b43_radio_init2056(dev);
- b43_nphy_set_chanspec(dev, nphy->radio_chanspec);
+ b43_switch_channel(dev, dev->phy.channel);
} else {
b43_radio_init2055(dev);
}
@@ -3534,6 +3568,9 @@ static void b43_nphy_op_switch_analog(struct b43_wldev *dev, bool on)
static int b43_nphy_op_switch_channel(struct b43_wldev *dev,
unsigned int new_channel)
{
+ struct ieee80211_channel *channel = dev->wl->hw->conf.channel;
+ enum nl80211_channel_type channel_type = dev->wl->hw->conf.channel_type;
+
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
if ((new_channel < 1) || (new_channel > 14))
return -EINVAL;
@@ -3542,7 +3579,7 @@ static int b43_nphy_op_switch_channel(struct b43_wldev *dev,
return -EINVAL;
}
- return nphy_channel_switch(dev, new_channel);
+ return b43_nphy_set_channel(dev, channel, channel_type);
}
static unsigned int b43_nphy_op_get_default_chan(struct b43_wldev *dev)