/* * Copyright (c) 2008-2011 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. */ #include #include #include #include "ath9k.h" #define REG_WRITE_D(_ah, _reg, _val) \ ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg)) #define REG_READ_D(_ah, _reg) \ ath9k_hw_common(_ah)->ops->read((_ah), (_reg)) static int ath9k_debugfs_open(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; } static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { u8 *buf = file->private_data; return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); } static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file) { vfree(file->private_data); return 0; } #ifdef CONFIG_ATH_DEBUG 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; struct ath_common *common = ath9k_hw_common(sc->sc_ah); char buf[32]; unsigned int len; len = sprintf(buf, "0x%08x\n", common->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; struct ath_common *common = ath9k_hw_common(sc->sc_ah); unsigned long mask; char buf[32]; ssize_t len; len = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, len)) return -EFAULT; buf[len] = '\0'; if (strict_strtoul(buf, 0, &mask)) return -EINVAL; common->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, .llseek = default_llseek, }; #endif #define DMA_BUF_LEN 1024 static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_common *common = ath9k_hw_common(sc->sc_ah); char buf[32]; unsigned int len; len = sprintf(buf, "0x%08x\n", common->tx_chainmask); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_common *common = ath9k_hw_common(sc->sc_ah); unsigned long mask; char buf[32]; ssize_t len; len = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, len)) return -EFAULT; buf[len] = '\0'; if (strict_strtoul(buf, 0, &mask)) return -EINVAL; common->tx_chainmask = mask; sc->sc_ah->caps.tx_chainmask = mask; return count; } static const struct file_operations fops_tx_chainmask = { .read = read_file_tx_chainmask, .write = write_file_tx_chainmask, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_common *common = ath9k_hw_common(sc->sc_ah); char buf[32]; unsigned int len; len = sprintf(buf, "0x%08x\n", common->rx_chainmask); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_common *common = ath9k_hw_common(sc->sc_ah); unsigned long mask; char buf[32]; ssize_t len; len = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, len)) return -EFAULT; buf[len] = '\0'; if (strict_strtoul(buf, 0, &mask)) return -EINVAL; common->rx_chainmask = mask; sc->sc_ah->caps.rx_chainmask = mask; return count; } static const struct file_operations fops_rx_chainmask = { .read = read_file_rx_chainmask, .write = write_file_rx_chainmask, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static ssize_t read_file_dma(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_hw *ah = sc->sc_ah; char *buf; int retval; unsigned int len = 0; u32 val[ATH9K_NUM_DMA_DEBUG_REGS]; int i, qcuOffset = 0, dcuOffset = 0; u32 *qcuBase = &val[0], *dcuBase = &val[4]; buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL); if (!buf) return -ENOMEM; ath9k_ps_wakeup(sc); REG_WRITE_D(ah, AR_MACMISC, ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) | (AR_MACMISC_MISC_OBS_BUS_1 << AR_MACMISC_MISC_OBS_BUS_MSB_S))); len += snprintf(buf + len, DMA_BUF_LEN - len, "Raw DMA Debug values:\n"); for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) { if (i % 4 == 0) len += snprintf(buf + len, DMA_BUF_LEN - len, "\n"); val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32))); len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ", i, val[i]); } len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n"); len += snprintf(buf + len, DMA_BUF_LEN - len, "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n"); for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) { if (i == 8) { qcuOffset = 0; qcuBase++; } if (i == 6) { dcuOffset = 0; dcuBase++; } len += snprintf(buf + len, DMA_BUF_LEN - len, "%2d %2x %1x %2x %2x\n", i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset, (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3), val[2] & (0x7 << (i * 3)) >> (i * 3), (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset); } len += snprintf(buf + len, DMA_BUF_LEN - len, "\n"); len += snprintf(buf + len, DMA_BUF_LEN - len, "qcu_stitch state: %2x qcu_fetch state: %2x\n", (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22); len += snprintf(buf + len, DMA_BUF_LEN - len, "qcu_complete state: %2x dcu_complete state: %2x\n", (val[3] & 0x1c000000) >> 26, (val[6] & 0x3)); len += snprintf(buf + len, DMA_BUF_LEN - len, "dcu_arb state: %2x dcu_fp state: %2x\n", (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27); len += snprintf(buf + len, DMA_BUF_LEN - len, "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n", (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10); len += snprintf(buf + len, DMA_BUF_LEN - len, "txfifo_valid_0: %1d txfifo_valid_1: %1d\n", (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12); len += snprintf(buf + len, DMA_BUF_LEN - len, "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n", (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17); len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n", REG_READ_D(ah, AR_OBS_BUS_1)); len += snprintf(buf + len, DMA_BUF_LEN - len, "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR)); ath9k_ps_restore(sc); if (len > DMA_BUF_LEN) len = DMA_BUF_LEN; retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); kfree(buf); return retval; } static const struct file_operations fops_dma = { .read = read_file_dma, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status) { if (status) sc->debug.stats.istats.total++; if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { if (status & ATH9K_INT_RXLP) sc->debug.stats.istats.rxlp++; if (status & ATH9K_INT_RXHP) sc->debug.stats.istats.rxhp++; if (status & ATH9K_INT_BB_WATCHDOG) sc->debug.stats.istats.bb_watchdog++; } else { if (status & ATH9K_INT_RX) sc->debug.stats.istats.rxok++; } if (status & ATH9K_INT_RXEOL) sc->debug.stats.istats.rxeol++; if (status & ATH9K_INT_RXORN) sc->debug.stats.istats.rxorn++; if (status & ATH9K_INT_TX) sc->debug.stats.istats.txok++; if (status & ATH9K_INT_TXURN) sc->debug.stats.istats.txurn++; if (status & ATH9K_INT_MIB) sc->debug.stats.istats.mib++; if (status & ATH9K_INT_RXPHY) sc->debug.stats.istats.rxphyerr++; if (status & ATH9K_INT_RXKCM) sc->debug.stats.istats.rx_keycache_miss++; if (status & ATH9K_INT_SWBA) sc->debug.stats.istats.swba++; if (status & ATH9K_INT_BMISS) sc->debug.stats.istats.bmiss++; if (status & ATH9K_INT_BNR) sc->debug.stats.istats.bnr++; if (status & ATH9K_INT_CST) sc->debug.stats.istats.cst++; if (status & ATH9K_INT_GTT) sc->debug.stats.istats.gtt++; if (status & ATH9K_INT_TIM) sc->debug.stats.istats.tim++; if (status & ATH9K_INT_CABEND) sc->debug.stats.istats.cabend++; if (status & ATH9K_INT_DTIMSYNC) sc->debug.stats.istats.dtimsync++; if (status & ATH9K_INT_DTIM) sc->debug.stats.istats.dtim++; if (status & ATH9K_INT_TSFOOR) sc->debug.stats.istats.tsfoor++; } static ssize_t read_file_interrupt(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; if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "WATCHDOG", sc->debug.stats.istats.bb_watchdog); } else { len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok); } len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "TX", sc->debug.stats.istats.txok); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "CST", sc->debug.stats.istats.cst); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "TSFOOR", sc->debug.stats.istats.tsfoor); len += snprintf(buf + len, sizeof(buf) - len, "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total); if (len > sizeof(buf)) len = sizeof(buf); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static const struct file_operations fops_interrupt = { .read = read_file_interrupt, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static const char *channel_type_str(enum nl80211_channel_type t) { switch (t) { case NL80211_CHAN_NO_HT: return "no ht"; case NL80211_CHAN_HT20: return "ht20"; case NL80211_CHAN_HT40MINUS: return "ht40-"; case NL80211_CHAN_HT40PLUS: return "ht40+"; default: 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; struct ieee80211_channel *chan = sc->hw->conf.channel; struct ieee80211_conf *conf = &(sc->hw->conf); char buf[512]; unsigned int len = 0; u8 addr[ETH_ALEN]; u32 tmp; len += snprintf(buf + len, sizeof(buf) - len, "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n", wiphy_name(sc->hw->wiphy), ieee80211_frequency_to_channel(chan->center_freq), chan->center_freq, conf->channel_type, channel_type_str(conf->channel_type)); ath9k_ps_wakeup(sc); 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); ath9k_ps_restore(sc); 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"); if (len > sizeof(buf)) len = sizeof(buf); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static const struct file_operations fops_wiphy = { .read = read_file_wiphy, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; #define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum #define PR(str, elem) \ do { \ len += snprintf(buf + len, size - len, \ "%s%13u%11u%10u%10u\n", str, \ sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \ sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \ sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \ sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \ if (len >= size) \ goto done; \ } while(0) #define PRX(str, elem) \ do { \ len += snprintf(buf + len, size - len, \ "%s%13u%11u%10u%10u\n", str, \ (unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem), \ (unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem), \ (unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem), \ (unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem)); \ if (len >= size) \ goto done; \ } while(0) #define PRQLE(str, elem) \ do { \ len += snprintf(buf + len, size - len, \ "%s%13i%11i%10i%10i\n", str, \ list_empty(&sc->tx.txq_map[WME_AC_BE]->elem), \ list_empty(&sc->tx.txq_map[WME_AC_BK]->elem), \ list_empty(&sc->tx.txq_map[WME_AC_VI]->elem), \ list_empty(&sc->tx.txq_map[WME_AC_VO]->elem)); \ if (len >= size) \ goto done; \ } while (0) static ssize_t read_file_xmit(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; char *buf; unsigned int len = 0, size = 8000; int i; ssize_t retval = 0; char tmp[32]; buf = kzalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; len += sprintf(buf, "Num-Tx-Queues: %i tx-queues-setup: 0x%x" " poll-work-seen: %u\n" "%30s %10s%10s%10s\n\n", ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup, sc->tx_complete_poll_work_seen, "BE", "BK", "VI", "VO"); PR("MPDUs Queued: ", queued); PR("MPDUs Completed: ", completed); PR("Aggregates: ", a_aggr); PR("AMPDUs Queued HW:", a_queued_hw); PR("AMPDUs Queued SW:", a_queued_sw); PR("AMPDUs Completed:", a_completed); PR("AMPDUs Retried: ", a_retries); PR("AMPDUs XRetried: ", a_xretries); PR("FIFO Underrun: ", fifo_underrun); PR("TXOP Exceeded: ", xtxop); PR("TXTIMER Expiry: ", timer_exp); PR("DESC CFG Error: ", desc_cfg_err); PR("DATA Underrun: ", data_underrun); PR("DELIM Underrun: ", delim_underrun); PR("TX-Pkts-All: ", tx_pkts_all); PR("TX-Bytes-All: ", tx_bytes_all); PR("hw-put-tx-buf: ", puttxbuf); PR("hw-tx-start: ", txstart); PR("hw-tx-proc-desc: ", txprocdesc); len += snprintf(buf + len, size - len, "%s%11p%11p%10p%10p\n", "txq-memory-address:", sc->tx.txq_map[WME_AC_BE], sc->tx.txq_map[WME_AC_BK], sc->tx.txq_map[WME_AC_VI], sc->tx.txq_map[WME_AC_VO]); if (len >= size) goto done; PRX("axq-qnum: ", axq_qnum); PRX("axq-depth: ", axq_depth); PRX("axq-ampdu_depth: ", axq_ampdu_depth); PRX("axq-stopped ", stopped); PRX("tx-in-progress ", axq_tx_inprogress); PRX("pending-frames ", pending_frames); PRX("txq_headidx: ", txq_headidx); PRX("txq_tailidx: ", txq_headidx); PRQLE("axq_q empty: ", axq_q); PRQLE("axq_acq empty: ", axq_acq); for (i = 0; i < ATH_TXFIFO_DEPTH; i++) { snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i); PRQLE(tmp, txq_fifo[i]); } /* Print out more detailed queue-info */ for (i = 0; i <= WME_AC_BK; i++) { struct ath_txq *txq = &(sc->tx.txq[i]); struct ath_atx_ac *ac; struct ath_atx_tid *tid; if (len >= size) goto done; spin_lock_bh(&txq->axq_lock); if (!list_empty(&txq->axq_acq)) { ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, list); len += snprintf(buf + len, size - len, "txq[%i] first-ac: %p sched: %i\n", i, ac, ac->sched); if (list_empty(&ac->tid_q) || (len >= size)) goto done_for; tid = list_first_entry(&ac->tid_q, struct ath_atx_tid, list); len += snprintf(buf + len, size - len, " first-tid: %p sched: %i paused: %i\n", tid, tid->sched, tid->paused); } done_for: spin_unlock_bh(&txq->axq_lock); } done: if (len > size) len = size; retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); kfree(buf); return retval; } static ssize_t read_file_stations(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; char *buf; unsigned int len = 0, size = 64000; struct ath_node *an = NULL; ssize_t retval = 0; int q; buf = kzalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; len += snprintf(buf + len, size - len, "Stations:\n" " tid: addr sched paused buf_q-empty an ac\n" " ac: addr sched tid_q-empty txq\n"); spin_lock(&sc->nodes_lock); list_for_each_entry(an, &sc->nodes, list) { len += snprintf(buf + len, size - len, "%pM\n", an->sta->addr); if (len >= size) goto done; for (q = 0; q < WME_NUM_TID; q++) { struct ath_atx_tid *tid = &(an->tid[q]); len += snprintf(buf + len, size - len, " tid: %p %s %s %i %p %p\n", tid, tid->sched ? "sched" : "idle", tid->paused ? "paused" : "running", list_empty(&tid->buf_q), tid->an, tid->ac); if (len >= size) goto done; } for (q = 0; q < WME_NUM_AC; q++) { struct ath_atx_ac *ac = &(an->ac[q]); len += snprintf(buf + len, size - len, " ac: %p %s %i %p\n", ac, ac->sched ? "sched" : "idle", list_empty(&ac->tid_q), ac->txq); if (len >= size) goto done; } } done: spin_unlock(&sc->nodes_lock); if (len > size) len = size; retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); kfree(buf); return retval; } static ssize_t read_file_misc(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_hw *ah = sc->sc_ah; struct ieee80211_hw *hw = sc->hw; char *buf; unsigned int len = 0, size = 8000; ssize_t retval = 0; const char *tmp; unsigned int reg; struct ath9k_vif_iter_data iter_data; ath9k_calculate_iter_data(hw, NULL, &iter_data); buf = kzalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; switch (sc->sc_ah->opmode) { case NL80211_IFTYPE_ADHOC: tmp = "ADHOC"; break; case NL80211_IFTYPE_MESH_POINT: tmp = "MESH"; break; case NL80211_IFTYPE_AP: tmp = "AP"; break; case NL80211_IFTYPE_STATION: tmp = "STATION"; break; default: tmp = "???"; break; } ath9k_ps_wakeup(sc); len += snprintf(buf + len, size - len, "curbssid: %pM\n" "OP-Mode: %s(%i)\n" "Beacon-Timer-Register: 0x%x\n", common->curbssid, tmp, (int)(sc->sc_ah->opmode), REG_READ(ah, AR_BEACON_PERIOD)); reg = REG_READ(ah, AR_TIMER_MODE); ath9k_ps_restore(sc); len += snprintf(buf + len, size - len, "Timer-Mode-Register: 0x%x (", reg); if (reg & AR_TBTT_TIMER_EN) len += snprintf(buf + len, size - len, "TBTT "); if (reg & AR_DBA_TIMER_EN) len += snprintf(buf + len, size - len, "DBA "); if (reg & AR_SWBA_TIMER_EN) len += snprintf(buf + len, size - len, "SWBA "); if (reg & AR_HCF_TIMER_EN) len += snprintf(buf + len, size - len, "HCF "); if (reg & AR_TIM_TIMER_EN) len += snprintf(buf + len, size - len, "TIM "); if (reg & AR_DTIM_TIMER_EN) len += snprintf(buf + len, size - len, "DTIM "); len += snprintf(buf + len, size - len, ")\n"); reg = sc->sc_ah->imask; len += snprintf(buf + len, size - len, "imask: 0x%x (", reg); if (reg & ATH9K_INT_SWBA) len += snprintf(buf + len, size - len, "SWBA "); if (reg & ATH9K_INT_BMISS) len += snprintf(buf + len, size - len, "BMISS "); if (reg & ATH9K_INT_CST) len += snprintf(buf + len, size - len, "CST "); if (reg & ATH9K_INT_RX) len += snprintf(buf + len, size - len, "RX "); if (reg & ATH9K_INT_RXHP) len += snprintf(buf + len, size - len, "RXHP "); if (reg & ATH9K_INT_RXLP) len += snprintf(buf + len, size - len, "RXLP "); if (reg & ATH9K_INT_BB_WATCHDOG) len += snprintf(buf + len, size - len, "BB_WATCHDOG "); /* there are other IRQs if one wanted to add them. */ len += snprintf(buf + len, size - len, ")\n"); len += snprintf(buf + len, size - len, "VIF Counts: AP: %i STA: %i MESH: %i WDS: %i" " ADHOC: %i OTHER: %i nvifs: %hi beacon-vifs: %hi\n", iter_data.naps, iter_data.nstations, iter_data.nmeshes, iter_data.nwds, iter_data.nadhocs, iter_data.nothers, sc->nvifs, sc->nbcnvifs); len += snprintf(buf + len, size - len, "Calculated-BSSID-Mask: %pM\n", iter_data.mask); if (len > size) len = size; retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); kfree(buf); return retval; } void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, struct ath_tx_status *ts, struct ath_txq *txq) { int qnum = txq->axq_qnum; TX_STAT_INC(qnum, tx_pkts_all); sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len; if (bf_isampdu(bf)) { if (bf_isxretried(bf)) TX_STAT_INC(qnum, a_xretries); else TX_STAT_INC(qnum, a_completed); } else { TX_STAT_INC(qnum, completed); } if (ts->ts_status & ATH9K_TXERR_FIFO) TX_STAT_INC(qnum, fifo_underrun); if (ts->ts_status & ATH9K_TXERR_XTXOP) TX_STAT_INC(qnum, xtxop); if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED) TX_STAT_INC(qnum, timer_exp); if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR) TX_STAT_INC(qnum, desc_cfg_err); if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN) TX_STAT_INC(qnum, data_underrun); if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN) TX_STAT_INC(qnum, delim_underrun); } static const struct file_operations fops_xmit = { .read = read_file_xmit, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static const struct file_operations fops_stations = { .read = read_file_stations, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static const struct file_operations fops_misc = { .read = read_file_misc, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static ssize_t read_file_recv(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { #define PHY_ERR(s, p) \ len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \ sc->debug.stats.rxstats.phy_err_stats[p]); struct ath_softc *sc = file->private_data; char *buf; unsigned int len = 0, size = 1400; ssize_t retval = 0; buf = kzalloc(size, GFP_KERNEL); if (buf == NULL) return -ENOMEM; len += snprintf(buf + len, size - len, "%18s : %10u\n", "CRC ERR", sc->debug.stats.rxstats.crc_err); len += snprintf(buf + len, size - len, "%18s : %10u\n", "DECRYPT CRC ERR", sc->debug.stats.rxstats.decrypt_crc_err); len += snprintf(buf + len, size - len, "%18s : %10u\n", "PHY ERR", sc->debug.stats.rxstats.phy_err); len += snprintf(buf + len, size - len, "%18s : %10u\n", "MIC ERR", sc->debug.stats.rxstats.mic_err); len += snprintf(buf + len, size - len, "%18s : %10u\n", "PRE-DELIM CRC ERR", sc->debug.stats.rxstats.pre_delim_crc_err); len += snprintf(buf + len, size - len, "%18s : %10u\n", "POST-DELIM CRC ERR", sc->debug.stats.rxstats.post_delim_crc_err); len += snprintf(buf + len, size - len, "%18s : %10u\n", "DECRYPT BUSY ERR", sc->debug.stats.rxstats.decrypt_busy_err); len += snprintf(buf + len, size - len, "%18s : %10d\n", "RSSI-CTL0", sc->debug.stats.rxstats.rs_rssi_ctl0); len += snprintf(buf + len, size - len, "%18s : %10d\n", "RSSI-CTL1", sc->debug.stats.rxstats.rs_rssi_ctl1); len += snprintf(buf + len, size - len, "%18s : %10d\n", "RSSI-CTL2", sc->debug.stats.rxstats.rs_rssi_ctl2); len += snprintf(buf + len, size - len, "%18s : %10d\n", "RSSI-EXT0", sc->debug.stats.rxstats.rs_rssi_ext0); len += snprintf(buf + len, size - len, "%18s : %10d\n", "RSSI-EXT1", sc->debug.stats.rxstats.rs_rssi_ext1); len += snprintf(buf + len, size - len, "%18s : %10d\n", "RSSI-EXT2", sc->debug.stats.rxstats.rs_rssi_ext2); len += snprintf(buf + len, size - len, "%18s : %10d\n", "Rx Antenna", sc->debug.stats.rxstats.rs_antenna); PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN); PHY_ERR("TIMING", ATH9K_PHYERR_TIMING); PHY_ERR("PARITY", ATH9K_PHYERR_PARITY); PHY_ERR("RATE", ATH9K_PHYERR_RATE); PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH); PHY_ERR("RADAR", ATH9K_PHYERR_RADAR); PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE); PHY_ERR("TOR", ATH9K_PHYERR_TOR); PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING); PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY); PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL); PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL); PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP); PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE); PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART); PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT); PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING); PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC); PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL); PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE); PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART); PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL); PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP); PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR); PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL); PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL); len += snprintf(buf + len, size - len, "%18s : %10u\n", "RX-Pkts-All", sc->debug.stats.rxstats.rx_pkts_all); len += snprintf(buf + len, size - len, "%18s : %10u\n", "RX-Bytes-All", sc->debug.stats.rxstats.rx_bytes_all); if (len > size) len = size; retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); kfree(buf); return retval; #undef PHY_ERR } void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs) { #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++ #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++ u32 phyerr; RX_STAT_INC(rx_pkts_all); sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen; if (rs->rs_status & ATH9K_RXERR_CRC) RX_STAT_INC(crc_err); if (rs->rs_status & ATH9K_RXERR_DECRYPT) RX_STAT_INC(decrypt_crc_err); if (rs->rs_status & ATH9K_RXERR_MIC) RX_STAT_INC(mic_err); if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE) RX_STAT_INC(pre_delim_crc_err); if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST) RX_STAT_INC(post_delim_crc_err); if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY) RX_STAT_INC(decrypt_busy_err); if (rs->rs_status & ATH9K_RXERR_PHY) { RX_STAT_INC(phy_err); phyerr = rs->rs_phyerr & 0x24; RX_PHY_ERR_INC(phyerr); } sc->debug.stats.rxstats.rs_rssi_ctl0 = rs->rs_rssi_ctl0; sc->debug.stats.rxstats.rs_rssi_ctl1 = rs->rs_rssi_ctl1; sc->debug.stats.rxstats.rs_rssi_ctl2 = rs->rs_rssi_ctl2; sc->debug.stats.rxstats.rs_rssi_ext0 = rs->rs_rssi_ext0; sc->debug.stats.rxstats.rs_rssi_ext1 = rs->rs_rssi_ext1; sc->debug.stats.rxstats.rs_rssi_ext2 = rs->rs_rssi_ext2; sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna; #undef RX_STAT_INC #undef RX_PHY_ERR_INC } static const struct file_operations fops_recv = { .read = read_file_recv, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static ssize_t read_file_regidx(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; len = sprintf(buf, "0x%08x\n", sc->debug.regidx); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t write_file_regidx(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; unsigned long regidx; char buf[32]; ssize_t len; len = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, len)) return -EFAULT; buf[len] = '\0'; if (strict_strtoul(buf, 0, ®idx)) return -EINVAL; sc->debug.regidx = regidx; return count; } static const struct file_operations fops_regidx = { .read = read_file_regidx, .write = write_file_regidx, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; static ssize_t read_file_regval(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_hw *ah = sc->sc_ah; char buf[32]; unsigned int len; u32 regval; ath9k_ps_wakeup(sc); regval = REG_READ_D(ah, sc->debug.regidx); ath9k_ps_restore(sc); len = sprintf(buf, "0x%08x\n", regval); return simple_read_from_buffer(user_buf, count, ppos, buf, len); } static ssize_t write_file_regval(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; struct ath_hw *ah = sc->sc_ah; unsigned long regval; char buf[32]; ssize_t len; len = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, len)) return -EFAULT; buf[len] = '\0'; if (strict_strtoul(buf, 0, ®val)) return -EINVAL; ath9k_ps_wakeup(sc); REG_WRITE_D(ah, sc->debug.regidx, regval); ath9k_ps_restore(sc); return count; } static const struct file_operations fops_regval = { .read = read_file_regval, .write = write_file_regval, .open = ath9k_debugfs_open, .owner = THIS_MODULE, .llseek = default_llseek, }; #define REGDUMP_LINE_SIZE 20 static int open_file_regdump(struct inode *inode, struct file *file) { struct ath_softc *sc = inode->i_private; unsigned int len = 0; u8 *buf; int i; unsigned long num_regs, regdump_len, max_reg_offset; max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500; num_regs = max_reg_offset / 4 + 1; regdump_len = num_regs * REGDUMP_LINE_SIZE + 1; buf = vmalloc(regdump_len); if (!buf) return -ENOMEM; ath9k_ps_wakeup(sc); for (i = 0; i < num_regs; i++) len += scnprintf(buf + len, regdump_len - len, "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2)); ath9k_ps_restore(sc); file->private_data = buf; return 0; } static const struct file_operations fops_regdump = { .open = open_file_regdump, .read = ath9k_debugfs_read_buf, .release = ath9k_debugfs_release_buf, .owner = THIS_MODULE, .llseek = default_llseek,/* read accesses f_pos */ }; int ath9k_init_debug(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); struct ath_softc *sc = (struct ath_softc *) common->priv; sc->debug.debugfs_phy = debugfs_create_dir("ath9k", sc->hw->wiphy->debugfsdir); if (!sc->debug.debugfs_phy) return -ENOMEM; #ifdef CONFIG_ATH_DEBUG debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_debug); #endif debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_dma); debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_interrupt); debugfs_create_file("wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_wiphy); debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_xmit); debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_stations); debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_misc); debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_recv); debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_rx_chainmask); debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_tx_chainmask); debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_regidx); debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_regval); debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca); debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_regdump); debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask); debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, &sc->sc_ah->gpio_val); sc->debug.regidx = 0; return 0; }