ath9k: Print rxfilter in debugfs.
Ben Greear [Tue, 14 Sep 2010 19:46:04 +0000 (12:46 -0700)]
Print raw and decoded rxfilter in debufs 'wiphy' file.

Also, move variable-length printouts to bottom of file to
make bounds checking easier.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/debug.c

index 54aae93..d65a896 100644 (file)
@@ -492,12 +492,55 @@ static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
        unsigned int len = 0;
        int i;
        u8 addr[ETH_ALEN];
+       u32 tmp;
 
        len += snprintf(buf + len, sizeof(buf) - len,
                        "primary: %s (%s chan=%d ht=%d)\n",
                        wiphy_name(sc->pri_wiphy->hw->wiphy),
                        ath_wiphy_state_str(sc->pri_wiphy->state),
                        sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
+
+       put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
+       put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
+       len += snprintf(buf + len, sizeof(buf) - len,
+                       "addr: %pM\n", addr);
+       put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
+       put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
+       len += snprintf(buf + len, sizeof(buf) - len,
+                       "addrmask: %pM\n", addr);
+       tmp = ath9k_hw_getrxfilter(sc->sc_ah);
+       len += snprintf(buf + len, sizeof(buf) - len,
+                       "rfilt: 0x%x", tmp);
+       if (tmp & ATH9K_RX_FILTER_UCAST)
+               len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
+       if (tmp & ATH9K_RX_FILTER_MCAST)
+               len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
+       if (tmp & ATH9K_RX_FILTER_BCAST)
+               len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
+       if (tmp & ATH9K_RX_FILTER_CONTROL)
+               len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
+       if (tmp & ATH9K_RX_FILTER_BEACON)
+               len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
+       if (tmp & ATH9K_RX_FILTER_PROM)
+               len += snprintf(buf + len, sizeof(buf) - len, " PROM");
+       if (tmp & ATH9K_RX_FILTER_PROBEREQ)
+               len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
+       if (tmp & ATH9K_RX_FILTER_PHYERR)
+               len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
+       if (tmp & ATH9K_RX_FILTER_MYBEACON)
+               len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
+       if (tmp & ATH9K_RX_FILTER_COMP_BAR)
+               len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
+       if (tmp & ATH9K_RX_FILTER_PSPOLL)
+               len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
+       if (tmp & ATH9K_RX_FILTER_PHYRADAR)
+               len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
+       if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
+               len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n");
+       else
+               len += snprintf(buf + len, sizeof(buf) - len, "\n");
+
+       /* Put variable-length stuff down here, and check for overflows. */
        for (i = 0; i < sc->num_sec_wiphy; i++) {
                struct ath_wiphy *aphy = sc->sec_wiphy[i];
                if (aphy == NULL)
@@ -508,16 +551,6 @@ static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
                                ath_wiphy_state_str(aphy->state),
                                aphy->chan_idx, aphy->chan_is_ht);
        }
-
-       put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
-       put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
-       len += snprintf(buf + len, sizeof(buf) - len,
-                       "addr: %pM\n", addr);
-       put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
-       put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
-       len += snprintf(buf + len, sizeof(buf) - len,
-                       "addrmask: %pM\n", addr);
-
        if (len > sizeof(buf))
                len = sizeof(buf);