From 203c4805e91786f9a010bc7945a0fde70c9da28e Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Mon, 30 Mar 2009 22:30:33 -0400 Subject: atheros: put atheros wireless drivers into ath/ Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/debug.h | 161 +++++++++++++++++++++++++++++++++ 1 file changed, 161 insertions(+) create mode 100644 drivers/net/wireless/ath/ath9k/debug.h (limited to 'drivers/net/wireless/ath/ath9k/debug.h') diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h new file mode 100644 index 00000000000..23298b90b52 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -0,0 +1,161 @@ +/* + * Copyright (c) 2008-2009 Atheros Communications Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef DEBUG_H +#define DEBUG_H + +enum ATH_DEBUG { + ATH_DBG_RESET = 0x00000001, + ATH_DBG_QUEUE = 0x00000002, + ATH_DBG_EEPROM = 0x00000004, + ATH_DBG_CALIBRATE = 0x00000008, + ATH_DBG_INTERRUPT = 0x00000010, + ATH_DBG_REGULATORY = 0x00000020, + ATH_DBG_ANI = 0x00000040, + ATH_DBG_XMIT = 0x00000080, + ATH_DBG_BEACON = 0x00000100, + ATH_DBG_CONFIG = 0x00000200, + ATH_DBG_FATAL = 0x00000400, + ATH_DBG_ANY = 0xffffffff +}; + +#define DBG_DEFAULT (ATH_DBG_FATAL) + +#ifdef CONFIG_ATH9K_DEBUG + +/** + * struct ath_interrupt_stats - Contains statistics about interrupts + * @total: Total no. of interrupts generated so far + * @rxok: RX with no errors + * @rxeol: RX with no more RXDESC available + * @rxorn: RX FIFO overrun + * @txok: TX completed at the requested rate + * @txurn: TX FIFO underrun + * @mib: MIB regs reaching its threshold + * @rxphyerr: RX with phy errors + * @rx_keycache_miss: RX with key cache misses + * @swba: Software Beacon Alert + * @bmiss: Beacon Miss + * @bnr: Beacon Not Ready + * @cst: Carrier Sense TImeout + * @gtt: Global TX Timeout + * @tim: RX beacon TIM occurrence + * @cabend: RX End of CAB traffic + * @dtimsync: DTIM sync lossage + * @dtim: RX Beacon with DTIM + */ +struct ath_interrupt_stats { + u32 total; + u32 rxok; + u32 rxeol; + u32 rxorn; + u32 txok; + u32 txeol; + u32 txurn; + u32 mib; + u32 rxphyerr; + u32 rx_keycache_miss; + u32 swba; + u32 bmiss; + u32 bnr; + u32 cst; + u32 gtt; + u32 tim; + u32 cabend; + u32 dtimsync; + u32 dtim; +}; + +struct ath_legacy_rc_stats { + u32 success; +}; + +struct ath_11n_rc_stats { + u32 success; + u32 retries; + u32 xretries; + u8 per; +}; + +struct ath_stats { + struct ath_interrupt_stats istats; + struct ath_legacy_rc_stats legacy_rcstats[12]; /* max(11a,11b,11g) */ + struct ath_11n_rc_stats n_rcstats[16]; /* 0..15 MCS rates */ +}; + +struct ath9k_debug { + int debug_mask; + struct dentry *debugfs_phy; + struct dentry *debugfs_dma; + struct dentry *debugfs_interrupt; + struct dentry *debugfs_rcstat; + struct dentry *debugfs_wiphy; + struct ath_stats stats; +}; + +void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...); +int ath9k_init_debug(struct ath_softc *sc); +void ath9k_exit_debug(struct ath_softc *sc); +int ath9k_debug_create_root(void); +void ath9k_debug_remove_root(void); +void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status); +void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb); +void ath_debug_stat_retries(struct ath_softc *sc, int rix, + int xretries, int retries, u8 per); + +#else + +static inline void DPRINTF(struct ath_softc *sc, int dbg_mask, + const char *fmt, ...) +{ +} + +static inline int ath9k_init_debug(struct ath_softc *sc) +{ + return 0; +} + +static inline void ath9k_exit_debug(struct ath_softc *sc) +{ +} + +static inline int ath9k_debug_create_root(void) +{ + return 0; +} + +static inline void ath9k_debug_remove_root(void) +{ +} + +static inline void ath_debug_stat_interrupt(struct ath_softc *sc, + enum ath9k_int status) +{ +} + +static inline void ath_debug_stat_rc(struct ath_softc *sc, + struct sk_buff *skb) +{ +} + +static inline void ath_debug_stat_retries(struct ath_softc *sc, int rix, + int xretries, int retries, u8 per) +{ +} + +#endif /* CONFIG_ATH9K_DEBUG */ + +#endif /* DEBUG_H */ -- cgit v1.2.3-70-g09d2 From cc65965cbb24d2ca2bb70f26cac9d7243349e7e3 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Thu, 14 May 2009 21:28:48 +0300 Subject: ath9k: Fix PS mode operation to receive buffered broadcast/multicast frames The previous implementation was moving back to NETWORK SLEEP state immediately after receiving a Beacon frame. This means that we are unlikely to receive all the buffered broadcast/multicast frames that would be sent after DTIM Beacon frames. Fix this by parsing the Beacon frame and remaining awake, if needed, to receive the buffered broadcast/multicast frames. The last buffered frame will trigger the move back into NETWORK SLEEP state. If the last broadcast/multicast frame is not received properly (or if the AP fails to send it), the next Beacon frame will work as a backup trigger for returning into NETWORK SLEEP. A new debug type, PS (debug=0x800 module parameter), is added to make it easier to debug potential power save issues in the future. Currently, this is only used for the Beacon frame and buffered broadcast/multicast receiving. Signed-off-by: Jouni Malinen Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 + drivers/net/wireless/ath/ath9k/debug.h | 1 + drivers/net/wireless/ath/ath9k/recv.c | 119 +++++++++++++++++++++++++++++++-- 3 files changed, 114 insertions(+), 7 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/debug.h') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 10ffc944285..34256621d41 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -515,6 +515,7 @@ struct ath_rfkill { #define SC_OP_LED_ON BIT(13) #define SC_OP_SCANNING BIT(14) #define SC_OP_TSF_RESET BIT(15) +#define SC_OP_WAIT_FOR_CAB BIT(16) struct ath_bus_ops { void (*read_cachesize)(struct ath_softc *sc, int *csz); diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index 23298b90b52..db845cf960c 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -29,6 +29,7 @@ enum ATH_DEBUG { ATH_DBG_BEACON = 0x00000100, ATH_DBG_CONFIG = 0x00000200, ATH_DBG_FATAL = 0x00000400, + ATH_DBG_PS = 0x00000800, ATH_DBG_ANY = 0xffffffff }; diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 58bb26c7277..72e9283bcf7 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -473,6 +473,112 @@ void ath_flushrecv(struct ath_softc *sc) spin_unlock_bh(&sc->rx.rxflushlock); } +static bool ath_beacon_dtim_pending_cab(struct sk_buff *skb) +{ + /* Check whether the Beacon frame has DTIM indicating buffered bc/mc */ + struct ieee80211_mgmt *mgmt; + u8 *pos, *end, id, elen; + struct ieee80211_tim_ie *tim; + + mgmt = (struct ieee80211_mgmt *)skb->data; + pos = mgmt->u.beacon.variable; + end = skb->data + skb->len; + + while (pos + 2 < end) { + id = *pos++; + elen = *pos++; + if (pos + elen > end) + break; + + if (id == WLAN_EID_TIM) { + if (elen < sizeof(*tim)) + break; + tim = (struct ieee80211_tim_ie *) pos; + if (tim->dtim_count != 0) + break; + return tim->bitmap_ctrl & 0x01; + } + + pos += elen; + } + + return false; +} + +static void ath_rx_ps_back_to_sleep(struct ath_softc *sc) +{ + sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | SC_OP_WAIT_FOR_CAB); + if (sc->hw->conf.flags & IEEE80211_CONF_PS) + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); +} + +static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb) +{ + struct ieee80211_mgmt *mgmt; + + if (skb->len < 24 + 8 + 2 + 2) + return; + + mgmt = (struct ieee80211_mgmt *)skb->data; + if (memcmp(sc->curbssid, mgmt->bssid, ETH_ALEN) != 0) + return; /* not from our current AP */ + + if (!(sc->hw->conf.flags & IEEE80211_CONF_PS)) { + /* We are not in PS mode anymore; remain awake */ + DPRINTF(sc, ATH_DBG_PS, "Not in PS mode anymore, remain " + "awake\n"); + sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | SC_OP_WAIT_FOR_CAB); + return; + } + + if (ath_beacon_dtim_pending_cab(skb)) { + /* + * Remain awake waiting for buffered broadcast/multicast + * frames. + */ + DPRINTF(sc, ATH_DBG_PS, "Received DTIM beacon indicating " + "buffered broadcast/multicast frame(s)\n"); + sc->sc_flags |= SC_OP_WAIT_FOR_CAB; + return; + } + + if (sc->sc_flags & SC_OP_WAIT_FOR_CAB) { + /* + * This can happen if a broadcast frame is dropped or the AP + * fails to send a frame indicating that all CAB frames have + * been delivered. + */ + DPRINTF(sc, ATH_DBG_PS, "PS wait for CAB frames timed out\n"); + } + + /* No more broadcast/multicast frames to be received at this point. */ + ath_rx_ps_back_to_sleep(sc); +} + +static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr; + + hdr = (struct ieee80211_hdr *)skb->data; + + /* Process Beacon and CAB receive in PS state */ + if (ieee80211_is_beacon(hdr->frame_control)) + ath_rx_ps_beacon(sc, skb); + else if ((sc->sc_flags & SC_OP_WAIT_FOR_CAB) && + (ieee80211_is_data(hdr->frame_control) || + ieee80211_is_action(hdr->frame_control)) && + is_multicast_ether_addr(hdr->addr1) && + !ieee80211_has_moredata(hdr->frame_control)) { + DPRINTF(sc, ATH_DBG_PS, "All PS CAB frames received, back to " + "sleep\n"); + /* + * No more broadcast/multicast frames to be received at this + * point. + */ + ath_rx_ps_back_to_sleep(sc); + } +} + static void ath_rx_send_to_mac80211(struct ath_softc *sc, struct sk_buff *skb, struct ieee80211_rx_status *rx_status) { @@ -667,8 +773,6 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) rx_status.flag &= ~RX_FLAG_DECRYPTED; } - ath_rx_send_to_mac80211(sc, skb, &rx_status); - /* We will now give hardware our shiny new allocated skb */ bf->bf_mpdu = requeue_skb; bf->bf_buf_addr = dma_map_single(sc->dev, requeue_skb->data, @@ -680,6 +784,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) bf->bf_mpdu = NULL; DPRINTF(sc, ATH_DBG_FATAL, "dma_mapping_error() on RX\n"); + ath_rx_send_to_mac80211(sc, skb, &rx_status); break; } bf->bf_dmacontext = bf->bf_buf_addr; @@ -695,11 +800,11 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush) sc->rx.rxotherant = 0; } - if (ieee80211_is_beacon(fc) && - (sc->sc_flags & SC_OP_WAIT_FOR_BEACON)) { - sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON; - ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); - } + if (unlikely(sc->sc_flags & SC_OP_WAIT_FOR_BEACON)) + ath_rx_ps(sc, skb); + + ath_rx_send_to_mac80211(sc, skb, &rx_status); + requeue: list_move_tail(&bf->list, &sc->rx.rxbuf); ath_rx_buf_link(sc, bf); -- cgit v1.2.3-70-g09d2 From bedf087af96a24861d09586ac25c26691300ff4c Mon Sep 17 00:00:00 2001 From: Jeff Hansen Date: Wed, 27 May 2009 12:48:28 +0000 Subject: ath9k: Combine legacy and 11n rc statistics This patch combines the legacy and 11n rcstats into one, using the normal rate table indices instead of two separate indices for each mode. Legacy rates also get all of the PER and retry information, now, too. Signed-off-by: Jeff Hansen Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/debug.c | 111 ++++++++++----------------------- drivers/net/wireless/ath/ath9k/debug.h | 9 +-- 2 files changed, 35 insertions(+), 85 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/debug.h') diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 97df20cbf52..80115ea07c7 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -224,111 +224,66 @@ static const struct file_operations fops_interrupt = { .owner = THIS_MODULE }; -static void ath_debug_stat_11n_rc(struct ath_softc *sc, struct sk_buff *skb) -{ - struct ath_tx_info_priv *tx_info_priv = NULL; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ieee80211_tx_rate *rates = tx_info->status.rates; - int final_ts_idx, idx; - - tx_info_priv = ATH_TX_INFO_PRIV(tx_info); - final_ts_idx = tx_info_priv->tx.ts_rateindex; - idx = sc->cur_rate_table->info[rates[final_ts_idx].idx].dot11rate; - - sc->debug.stats.n_rcstats[idx].success++; -} - -static void ath_debug_stat_legacy_rc(struct ath_softc *sc, struct sk_buff *skb) +void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb) { struct ath_tx_info_priv *tx_info_priv = NULL; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_rate *rates = tx_info->status.rates; int final_ts_idx, idx; + struct ath_rc_stats *stats; tx_info_priv = ATH_TX_INFO_PRIV(tx_info); final_ts_idx = tx_info_priv->tx.ts_rateindex; idx = rates[final_ts_idx].idx; - - sc->debug.stats.legacy_rcstats[idx].success++; + stats = &sc->debug.stats.rcstats[idx]; + stats->success++; } -void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb) -{ - if (conf_is_ht(&sc->hw->conf)) - ath_debug_stat_11n_rc(sc, skb); - else - ath_debug_stat_legacy_rc(sc, skb); -} - -/* FIXME: legacy rates, later on .. */ void ath_debug_stat_retries(struct ath_softc *sc, int rix, int xretries, int retries, u8 per) { - if (conf_is_ht(&sc->hw->conf)) { - int idx = sc->cur_rate_table->info[rix].dot11rate; + struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix]; - sc->debug.stats.n_rcstats[idx].xretries += xretries; - sc->debug.stats.n_rcstats[idx].retries += retries; - sc->debug.stats.n_rcstats[idx].per = per; - } + stats->xretries += xretries; + stats->retries += retries; + stats->per = per; } -static ssize_t ath_read_file_stat_11n_rc(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) +static ssize_t read_file_rcstat(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; - char buf[1024]; - unsigned int len = 0; + char *buf; + unsigned int len = 0, max; int i = 0; + ssize_t retval; - len += sprintf(buf, "%7s %13s %8s %8s %6s\n\n", "Rate", "Success", - "Retries", "XRetries", "PER"); - - for (i = 0; i <= 15; i++) { - len += snprintf(buf + len, sizeof(buf) - len, - "%5s%3d: %8u %8u %8u %8u\n", "MCS", i, - sc->debug.stats.n_rcstats[i].success, - sc->debug.stats.n_rcstats[i].retries, - sc->debug.stats.n_rcstats[i].xretries, - sc->debug.stats.n_rcstats[i].per); - } - - return simple_read_from_buffer(user_buf, count, ppos, buf, len); -} + if (sc->cur_rate_table == NULL) + return 0; -static ssize_t ath_read_file_stat_legacy_rc(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 = 0; + max = 80 + sc->cur_rate_table->rate_cnt * 64; + buf = kmalloc(max + 1, GFP_KERNEL); + if (buf == NULL) + return 0; + buf[max] = 0; - len += sprintf(buf, "%7s %13s\n\n", "Rate", "Success"); + len += sprintf(buf, "%5s %15s %8s %9s %3s\n\n", "Rate", "Success", + "Retries", "XRetries", "PER"); for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) { - len += snprintf(buf + len, sizeof(buf) - len, "%5u: %12u\n", - sc->cur_rate_table->info[i].ratekbps / 1000, - sc->debug.stats.legacy_rcstats[i].success); + u32 ratekbps = sc->cur_rate_table->info[i].ratekbps; + struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i]; + + len += snprintf(buf + len, max - len, + "%3u.%d: %8u %8u %8u %8u\n", ratekbps / 1000, + (ratekbps % 1000) / 100, stats->success, + stats->retries, stats->xretries, + stats->per); } - return simple_read_from_buffer(user_buf, count, ppos, buf, len); -} - -static ssize_t read_file_rcstat(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ath_softc *sc = file->private_data; - - if (sc->cur_rate_table == NULL) - return 0; - - if (conf_is_ht(&sc->hw->conf)) - return ath_read_file_stat_11n_rc(file, user_buf, count, ppos); - else - return ath_read_file_stat_legacy_rc(file, user_buf, count ,ppos); + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + return retval; } static const struct file_operations fops_rcstat = { diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index db845cf960c..cf9146a6aaa 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -80,11 +80,7 @@ struct ath_interrupt_stats { u32 dtim; }; -struct ath_legacy_rc_stats { - u32 success; -}; - -struct ath_11n_rc_stats { +struct ath_rc_stats { u32 success; u32 retries; u32 xretries; @@ -93,8 +89,7 @@ struct ath_11n_rc_stats { struct ath_stats { struct ath_interrupt_stats istats; - struct ath_legacy_rc_stats legacy_rcstats[12]; /* max(11a,11b,11g) */ - struct ath_11n_rc_stats n_rcstats[16]; /* 0..15 MCS rates */ + struct ath_rc_stats rcstats[RATE_TABLE_SIZE]; }; struct ath9k_debug { -- cgit v1.2.3-70-g09d2 From 2493928e4dbefa1869413cf24b7f605b9b69d0d2 Mon Sep 17 00:00:00 2001 From: Jeff Hansen Date: Wed, 27 May 2009 12:48:29 +0000 Subject: ath9k: Add "debug" file to debugfs This patch adds the debug file to the ath9k debugfs, which lets you modify the debug_mask at runtime, without having to reload the ath9k module. Signed-off-by: Jeff Hansen Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/debug.c | 38 ++++++++++++++++++++++++++++++++++ drivers/net/wireless/ath/ath9k/debug.h | 1 + 2 files changed, 39 insertions(+) (limited to 'drivers/net/wireless/ath/ath9k/debug.h') diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 80115ea07c7..a42d631e745 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -44,6 +44,38 @@ static int ath9k_debugfs_open(struct inode *inode, struct file *file) return 0; } +static ssize_t read_file_debug(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath_softc *sc = file->private_data; + char buf[32]; + unsigned int len = 0; + len += snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.debug_mask); + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_debug(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath_softc *sc = file->private_data; + unsigned long mask; + char buf[32]; + if (copy_from_user(buf, user_buf, (sizeof(buf) - 1) < count ? + (sizeof(buf) - 1) : count)) + return 0; + buf[sizeof(buf)-1] = 0; + if (strict_strtoul(buf, 0, &mask) == 0) + sc->debug.debug_mask = mask; + return count; +} + +static const struct file_operations fops_debug = { + .read = read_file_debug, + .write = write_file_debug, + .open = ath9k_debugfs_open, + .owner = THIS_MODULE +}; + static ssize_t read_file_dma(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -461,6 +493,11 @@ int ath9k_init_debug(struct ath_softc *sc) if (!sc->debug.debugfs_phy) goto err; + sc->debug.debugfs_debug = debugfs_create_file("debug", + S_IRUGO | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_debug); + if (!sc->debug.debugfs_debug) + goto err; + sc->debug.debugfs_dma = debugfs_create_file("dma", S_IRUGO, sc->debug.debugfs_phy, sc, &fops_dma); if (!sc->debug.debugfs_dma) @@ -498,6 +535,7 @@ void ath9k_exit_debug(struct ath_softc *sc) debugfs_remove(sc->debug.debugfs_rcstat); debugfs_remove(sc->debug.debugfs_interrupt); debugfs_remove(sc->debug.debugfs_dma); + debugfs_remove(sc->debug.debugfs_debug); debugfs_remove(sc->debug.debugfs_phy); } diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index cf9146a6aaa..edda15bf2c1 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -95,6 +95,7 @@ struct ath_stats { struct ath9k_debug { int debug_mask; struct dentry *debugfs_phy; + struct dentry *debugfs_debug; struct dentry *debugfs_dma; struct dentry *debugfs_interrupt; struct dentry *debugfs_rcstat; -- cgit v1.2.3-70-g09d2