debugfs ath9k/phy#/wiphy can be used to show the current list of
virtual wiphys and to add/remove virtual wiphys. Eventually, this
interface could be replaced with a cfg80211/nl80211 command that is
passed through mac80211.
For example:
# cat /debug/ath9k/phy0/wiphy
primary: phy0
# echo add > /debug/ath9k/phy0/wiphy
# cat /debug/ath9k/phy0/wiphy
primary: phy0
secondary: phy1
# echo del=phy1 > /debug/ath9k/phy0/wiphy
# cat /debug/ath9k/phy0/wiphy
primary: phy0
In addition, following commands can be used to test pausing and
unpausing of the virtual wiphys:
pause=phy1
unpause=phy1
select=phy1
(select pauses and unpauses wiphys automatically based on channel)
schedule=500
(set wiphy scheduling interval in msec; 0 = disable; default value: 500)
Signed-off-by: Jouni Malinen <jouni.malinen@xxxxxxxxxxx>
---
drivers/net/wireless/ath9k/debug.c | 164 +++++++++++++++++++++++++++++++++++++
drivers/net/wireless/ath9k/debug.h | 1
2 files changed, 165 insertions(+)
--- wireless-testing.orig/drivers/net/wireless/ath9k/debug.c 2009-02-27 10:52:58.000000000 +0200
+++ wireless-testing/drivers/net/wireless/ath9k/debug.c 2009-03-03 18:33:02.000000000 +0200
@@ -330,6 +330,163 @@ static const struct file_operations fops
.owner = THIS_MODULE
};
+static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
+{
+ switch (state) {
+ case ATH_WIPHY_INACTIVE:
+ return "INACTIVE";
+ case ATH_WIPHY_ACTIVE:
+ return "ACTIVE";
+ case ATH_WIPHY_PAUSING:
+ return "PAUSING";
+ case ATH_WIPHY_PAUSED:
+ return "PAUSED";
+ case ATH_WIPHY_SCAN:
+ return "SCAN";
+ }
+ return "?";
+}
+
+static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath_softc *sc = file->private_data;
+ char buf[512];
+ unsigned int len = 0;
+ int i;
+ u8 addr[ETH_ALEN];
+
+ 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);
+ for (i = 0; i < sc->num_sec_wiphy; i++) {
+ struct ath_wiphy *aphy = sc->sec_wiphy[i];
+ if (aphy == NULL)
+ continue;
+ len += snprintf(buf + len, sizeof(buf) - len,
+ "secondary: %s (%s chan=%d ht=%d)\n",
+ wiphy_name(aphy->hw->wiphy),
+ ath_wiphy_state_str(aphy->state),
+ aphy->chan_idx, aphy->chan_is_ht);
+ }
+
+ put_unaligned_le32(REG_READ(sc->sc_ah, AR_STA_ID0), addr);
+ put_unaligned_le16(REG_READ(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(sc->sc_ah, AR_BSSMSKL), addr);
+ put_unaligned_le16(REG_READ(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
+ len += snprintf(buf + len, sizeof(buf) - len,
+ "addrmask: %pM\n", addr);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
+{
+ int i;
+ if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
+ return sc->pri_wiphy;
+ for (i = 0; i < sc->num_sec_wiphy; i++) {
+ struct ath_wiphy *aphy = sc->sec_wiphy[i];
+ if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
+ return aphy;
+ }
+ return NULL;
+}
+
+static int del_wiphy(struct ath_softc *sc, const char *name)
+{
+ struct ath_wiphy *aphy = get_wiphy(sc, name);
+ if (!aphy)
+ return -ENOENT;
+ return ath9k_wiphy_del(aphy);
+}
+
+static int pause_wiphy(struct ath_softc *sc, const char *name)
+{
+ struct ath_wiphy *aphy = get_wiphy(sc, name);
+ if (!aphy)
+ return -ENOENT;
+ return ath9k_wiphy_pause(aphy);
+}
+
+static int unpause_wiphy(struct ath_softc *sc, const char *name)
+{
+ struct ath_wiphy *aphy = get_wiphy(sc, name);
+ if (!aphy)
+ return -ENOENT;
+ return ath9k_wiphy_unpause(aphy);
+}
+
+static int select_wiphy(struct ath_softc *sc, const char *name)
+{
+ struct ath_wiphy *aphy = get_wiphy(sc, name);
+ if (!aphy)
+ return -ENOENT;
+ return ath9k_wiphy_select(aphy);
+}
+
+static int schedule_wiphy(struct ath_softc *sc, const char *msec)
+{
+ ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
+ return 0;
+}
+
+static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath_softc *sc = file->private_data;
+ char buf[50];
+ size_t len;
+
+ len = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, len))
+ return -EFAULT;
+ buf[len] = '\0';
+ if (len > 0 && buf[len - 1] == '\n')
+ buf[len - 1] = '\0';
+
+ if (strncmp(buf, "add", 3) == 0) {
+ int res = ath9k_wiphy_add(sc);
+ if (res < 0)
+ return res;
+ } else if (strncmp(buf, "del=", 4) == 0) {
+ int res = del_wiphy(sc, buf + 4);
+ if (res < 0)
+ return res;
+ } else if (strncmp(buf, "pause=", 6) == 0) {
+ int res = pause_wiphy(sc, buf + 6);
+ if (res < 0)
+ return res;
+ } else if (strncmp(buf, "unpause=", 8) == 0) {
+ int res = unpause_wiphy(sc, buf + 8);
+ if (res < 0)
+ return res;
+ } else if (strncmp(buf, "select=", 7) == 0) {
+ int res = select_wiphy(sc, buf + 7);
+ if (res < 0)
+ return res;
+ } else if (strncmp(buf, "schedule=", 9) == 0) {
+ int res = schedule_wiphy(sc, buf + 9);
+ if (res < 0)
+ return res;
+ } else
+ return -EOPNOTSUPP;
+
+ return count;
+}
+
+static const struct file_operations fops_wiphy = {
+ .read = read_file_wiphy,
+ .write = write_file_wiphy,
+ .open = ath9k_debugfs_open,
+ .owner = THIS_MODULE
+};
+
+
int ath9k_init_debug(struct ath_softc *sc)
{
sc->debug.debug_mask = ath9k_debug;
@@ -362,6 +519,12 @@ int ath9k_init_debug(struct ath_softc *s
if (!sc->debug.debugfs_rcstat)
goto err;
+ sc->debug.debugfs_wiphy = debugfs_create_file(
+ "wiphy", S_IRUGO | S_IWUSR, sc->debug.debugfs_phy, sc,
+ &fops_wiphy);
+ if (!sc->debug.debugfs_wiphy)
+ goto err;
+
return 0;
err:
ath9k_exit_debug(sc);
@@ -370,6 +533,7 @@ err:
void ath9k_exit_debug(struct ath_softc *sc)
{
+ debugfs_remove(sc->debug.debugfs_wiphy);
debugfs_remove(sc->debug.debugfs_rcstat);
debugfs_remove(sc->debug.debugfs_interrupt);
debugfs_remove(sc->debug.debugfs_dma);
--- wireless-testing.orig/drivers/net/wireless/ath9k/debug.h 2009-02-27 10:52:58.000000000 +0200
+++ wireless-testing/drivers/net/wireless/ath9k/debug.h 2009-03-03 18:33:02.000000000 +0200
@@ -107,6 +107,7 @@ struct ath9k_debug {
struct dentry *debugfs_dma;
struct dentry *debugfs_interrupt;
struct dentry *debugfs_rcstat;
+ struct dentry *debugfs_wiphy;
struct ath_stats stats;
};
--
--
Jouni Malinen PGP id EFC895FA
--
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