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path: root/drivers/net/wireless/ath/ath9k/init.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/init.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/init.c88
1 files changed, 60 insertions, 28 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 3d4d897add6d..d457cb3bd772 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -175,6 +175,18 @@ static const struct ath_ops ath9k_common_ops = {
.write = ath9k_iowrite32,
};
+static int count_streams(unsigned int chainmask, int max)
+{
+ int streams = 0;
+
+ do {
+ if (++streams == max)
+ break;
+ } while ((chainmask = chainmask & (chainmask - 1)));
+
+ return streams;
+}
+
/**************************/
/* Initialization */
/**************************/
@@ -182,8 +194,10 @@ static const struct ath_ops ath9k_common_ops = {
static void setup_ht_cap(struct ath_softc *sc,
struct ieee80211_sta_ht_cap *ht_info)
{
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
u8 tx_streams, rx_streams;
+ int i, max_streams;
ht_info->ht_supported = true;
ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
@@ -191,28 +205,40 @@ static void setup_ht_cap(struct ath_softc *sc,
IEEE80211_HT_CAP_SGI_40 |
IEEE80211_HT_CAP_DSSSCCK40;
+ if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_LDPC)
+ ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
+
ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ max_streams = 3;
+ else
+ max_streams = 2;
+
+ if (AR_SREV_9280_10_OR_LATER(ah)) {
+ if (max_streams >= 2)
+ ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
+ ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
+ }
+
/* set up supported mcs set */
memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
- tx_streams = !(common->tx_chainmask & (common->tx_chainmask - 1)) ?
- 1 : 2;
- rx_streams = !(common->rx_chainmask & (common->rx_chainmask - 1)) ?
- 1 : 2;
+ tx_streams = count_streams(common->tx_chainmask, max_streams);
+ rx_streams = count_streams(common->rx_chainmask, max_streams);
+
+ ath_print(common, ATH_DBG_CONFIG,
+ "TX streams %d, RX streams: %d\n",
+ tx_streams, rx_streams);
if (tx_streams != rx_streams) {
- ath_print(common, ATH_DBG_CONFIG,
- "TX streams %d, RX streams: %d\n",
- tx_streams, rx_streams);
ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
ht_info->mcs.tx_params |= ((tx_streams - 1) <<
IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
}
- ht_info->mcs.rx_mask[0] = 0xff;
- if (rx_streams >= 2)
- ht_info->mcs.rx_mask[1] = 0xff;
+ for (i = 0; i < rx_streams; i++)
+ ht_info->mcs.rx_mask[i] = 0xff;
ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
}
@@ -235,31 +261,37 @@ static int ath9k_reg_notifier(struct wiphy *wiphy,
*/
int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
struct list_head *head, const char *name,
- int nbuf, int ndesc)
+ int nbuf, int ndesc, bool is_tx)
{
#define DS2PHYS(_dd, _ds) \
((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
#define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
#define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_desc *ds;
+ u8 *ds;
struct ath_buf *bf;
- int i, bsize, error;
+ int i, bsize, error, desc_len;
ath_print(common, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n",
name, nbuf, ndesc);
INIT_LIST_HEAD(head);
+
+ if (is_tx)
+ desc_len = sc->sc_ah->caps.tx_desc_len;
+ else
+ desc_len = sizeof(struct ath_desc);
+
/* ath_desc must be a multiple of DWORDs */
- if ((sizeof(struct ath_desc) % 4) != 0) {
+ if ((desc_len % 4) != 0) {
ath_print(common, ATH_DBG_FATAL,
"ath_desc not DWORD aligned\n");
- BUG_ON((sizeof(struct ath_desc) % 4) != 0);
+ BUG_ON((desc_len % 4) != 0);
error = -ENOMEM;
goto fail;
}
- dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc;
+ dd->dd_desc_len = desc_len * nbuf * ndesc;
/*
* Need additional DMA memory because we can't use
@@ -272,11 +304,11 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
u32 dma_len;
while (ndesc_skipped) {
- dma_len = ndesc_skipped * sizeof(struct ath_desc);
+ dma_len = ndesc_skipped * desc_len;
dd->dd_desc_len += dma_len;
ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len);
- };
+ }
}
/* allocate descriptors */
@@ -286,7 +318,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
error = -ENOMEM;
goto fail;
}
- ds = dd->dd_desc;
+ ds = (u8 *) dd->dd_desc;
ath_print(common, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n",
name, ds, (u32) dd->dd_desc_len,
ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len);
@@ -300,7 +332,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
}
dd->dd_bufptr = bf;
- for (i = 0; i < nbuf; i++, bf++, ds += ndesc) {
+ for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
bf->bf_desc = ds;
bf->bf_daddr = DS2PHYS(dd, ds);
@@ -316,7 +348,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
((caddr_t) dd->dd_desc +
dd->dd_desc_len));
- ds += ndesc;
+ ds += (desc_len * ndesc);
bf->bf_desc = ds;
bf->bf_daddr = DS2PHYS(dd, ds);
}
@@ -514,7 +546,7 @@ static void ath9k_init_misc(struct ath_softc *sc)
common->tx_chainmask = sc->sc_ah->caps.tx_chainmask;
common->rx_chainmask = sc->sc_ah->caps.rx_chainmask;
- ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_DIVERSITY, 1, true, NULL);
+ ath9k_hw_set_diversity(sc->sc_ah, true);
sc->rx.defant = ath9k_hw_getdefantenna(sc->sc_ah);
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
@@ -568,13 +600,10 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
ath_read_cachesize(common, &csz);
common->cachelsz = csz << 2; /* convert to bytes */
+ /* Initializes the hardware for all supported chipsets */
ret = ath9k_hw_init(ah);
- if (ret) {
- ath_print(common, ATH_DBG_FATAL,
- "Unable to initialize hardware; "
- "initialization status: %d\n", ret);
+ if (ret)
goto err_hw;
- }
ret = ath9k_init_debug(ah);
if (ret) {
@@ -760,6 +789,9 @@ static void ath9k_deinit_softc(struct ath_softc *sc)
tasklet_kill(&sc->intr_tq);
tasklet_kill(&sc->bcon_tasklet);
+
+ kfree(sc->sc_ah);
+ sc->sc_ah = NULL;
}
void ath9k_deinit_device(struct ath_softc *sc)
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-11 20:13:12 +0000