diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/debug.c | 1591 |
1 files changed, 1591 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c new file mode 100644 index 00000000..ff47b32e --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -0,0 +1,1591 @@ +/* + * 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 <linux/slab.h> +#include <linux/vmalloc.h> +#include <linux/export.h> +#include <asm/unaligned.h> + +#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 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 = simple_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_hw *ah = sc->sc_ah; + char buf[32]; + unsigned int len; + + len = sprintf(buf, "0x%08x\n", ah->txchainmask); + 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_hw *ah = 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; + + ah->txchainmask = mask; + 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 = simple_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_hw *ah = sc->sc_ah; + char buf[32]; + unsigned int len; + + len = sprintf(buf, "0x%08x\n", ah->rxchainmask); + 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_hw *ah = 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; + + ah->rxchainmask = mask; + 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 = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t read_file_disable_ani(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, "%d\n", common->disable_ani); + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_disable_ani(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 disable_ani; + 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, &disable_ani)) + return -EINVAL; + + common->disable_ani = !!disable_ani; + + if (disable_ani) { + sc->sc_flags &= ~SC_OP_ANI_RUN; + del_timer_sync(&common->ani.timer); + } else { + sc->sc_flags |= SC_OP_ANI_RUN; + ath_start_ani(common); + } + + return count; +} + +static const struct file_operations fops_disable_ani = { + .read = read_file_disable_ani, + .write = write_file_disable_ani, + .open = simple_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 = simple_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 = simple_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("MPDUs XRetried: ", xretries); + 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 baw\n" + " ac: addr sched tid_q-empty txq\n"); + + spin_lock(&sc->nodes_lock); + list_for_each_entry(an, &sc->nodes, list) { + unsigned short ma = an->maxampdu; + if (ma == 0) + ma = 65535; /* see ath_lookup_rate */ + len += snprintf(buf + len, size - len, + "iface: %pM sta: %pM max-ampdu: %hu mpdu-density: %uus\n", + an->vif->addr, an->sta->addr, ma, + (unsigned int)(an->mpdudensity)); + 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 %hu\n", + tid, tid->sched ? "sched" : "idle", + tid->paused ? "paused" : "running", + skb_queue_empty(&tid->buf_q), + tid->an, tid->ac, tid->baw_size); + 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 ieee80211_hw *hw = sc->hw; + struct ath9k_vif_iter_data iter_data; + char buf[512]; + unsigned int len = 0; + ssize_t retval = 0; + unsigned int reg; + u32 rxfilter; + + len += snprintf(buf + len, sizeof(buf) - len, + "BSSID: %pM\n", common->curbssid); + len += snprintf(buf + len, sizeof(buf) - len, + "BSSID-MASK: %pM\n", common->bssidmask); + len += snprintf(buf + len, sizeof(buf) - len, + "OPMODE: %s\n", ath_opmode_to_string(sc->sc_ah->opmode)); + + ath9k_ps_wakeup(sc); + rxfilter = ath9k_hw_getrxfilter(sc->sc_ah); + ath9k_ps_restore(sc); + + len += snprintf(buf + len, sizeof(buf) - len, + "RXFILTER: 0x%x", rxfilter); + + if (rxfilter & ATH9K_RX_FILTER_UCAST) + len += snprintf(buf + len, sizeof(buf) - len, " UCAST"); + if (rxfilter & ATH9K_RX_FILTER_MCAST) + len += snprintf(buf + len, sizeof(buf) - len, " MCAST"); + if (rxfilter & ATH9K_RX_FILTER_BCAST) + len += snprintf(buf + len, sizeof(buf) - len, " BCAST"); + if (rxfilter & ATH9K_RX_FILTER_CONTROL) + len += snprintf(buf + len, sizeof(buf) - len, " CONTROL"); + if (rxfilter & ATH9K_RX_FILTER_BEACON) + len += snprintf(buf + len, sizeof(buf) - len, " BEACON"); + if (rxfilter & ATH9K_RX_FILTER_PROM) + len += snprintf(buf + len, sizeof(buf) - len, " PROM"); + if (rxfilter & ATH9K_RX_FILTER_PROBEREQ) + len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ"); + if (rxfilter & ATH9K_RX_FILTER_PHYERR) + len += snprintf(buf + len, sizeof(buf) - len, " PHYERR"); + if (rxfilter & ATH9K_RX_FILTER_MYBEACON) + len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON"); + if (rxfilter & ATH9K_RX_FILTER_COMP_BAR) + len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR"); + if (rxfilter & ATH9K_RX_FILTER_PSPOLL) + len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL"); + if (rxfilter & ATH9K_RX_FILTER_PHYRADAR) + len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR"); + if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL) + len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL"); + if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER) + len += snprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER"); + + len += snprintf(buf + len, sizeof(buf) - len, "\n"); + + reg = sc->sc_ah->imask; + + len += snprintf(buf + len, sizeof(buf) - len, "INTERRUPT-MASK: 0x%x", reg); + + if (reg & ATH9K_INT_SWBA) + len += snprintf(buf + len, sizeof(buf) - len, " SWBA"); + if (reg & ATH9K_INT_BMISS) + len += snprintf(buf + len, sizeof(buf) - len, " BMISS"); + if (reg & ATH9K_INT_CST) + len += snprintf(buf + len, sizeof(buf) - len, " CST"); + if (reg & ATH9K_INT_RX) + len += snprintf(buf + len, sizeof(buf) - len, " RX"); + if (reg & ATH9K_INT_RXHP) + len += snprintf(buf + len, sizeof(buf) - len, " RXHP"); + if (reg & ATH9K_INT_RXLP) + len += snprintf(buf + len, sizeof(buf) - len, " RXLP"); + if (reg & ATH9K_INT_BB_WATCHDOG) + len += snprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG"); + + len += snprintf(buf + len, sizeof(buf) - len, "\n"); + + ath9k_calculate_iter_data(hw, NULL, &iter_data); + + len += snprintf(buf + len, sizeof(buf) - len, + "VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i" + " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n", + iter_data.naps, iter_data.nstations, iter_data.nmeshes, + iter_data.nwds, iter_data.nadhocs, + sc->nvifs, sc->nbcnvifs); + + if (len > sizeof(buf)) + len = sizeof(buf); + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + return retval; +} + +static ssize_t read_file_reset(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; + + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "Baseband Hang", + sc->debug.stats.reset[RESET_TYPE_BB_HANG]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "Baseband Watchdog", + sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "Fatal HW Error", + sc->debug.stats.reset[RESET_TYPE_FATAL_INT]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "TX HW error", + sc->debug.stats.reset[RESET_TYPE_TX_ERROR]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "TX Path Hang", + sc->debug.stats.reset[RESET_TYPE_TX_HANG]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "PLL RX Hang", + sc->debug.stats.reset[RESET_TYPE_PLL_HANG]); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, + struct ath_tx_status *ts, struct ath_txq *txq, + unsigned int flags) +{ +#define TX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].ts\ + [sc->debug.tsidx].c) + 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 (flags & ATH_TX_ERROR) + TX_STAT_INC(qnum, a_xretries); + else + TX_STAT_INC(qnum, a_completed); + } else { + if (ts->ts_status & ATH9K_TXERR_XRETRY) + TX_STAT_INC(qnum, xretries); + 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); + +#ifdef CONFIG_ATH9K_MAC_DEBUG + spin_lock(&sc->debug.samp_lock); + TX_SAMP_DBG(jiffies) = jiffies; + TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0; + TX_SAMP_DBG(rssi_ctl1) = ts->ts_rssi_ctl1; + TX_SAMP_DBG(rssi_ctl2) = ts->ts_rssi_ctl2; + TX_SAMP_DBG(rssi_ext0) = ts->ts_rssi_ext0; + TX_SAMP_DBG(rssi_ext1) = ts->ts_rssi_ext1; + TX_SAMP_DBG(rssi_ext2) = ts->ts_rssi_ext2; + TX_SAMP_DBG(rateindex) = ts->ts_rateindex; + TX_SAMP_DBG(isok) = !!(ts->ts_status & ATH9K_TXERR_MASK); + TX_SAMP_DBG(rts_fail_cnt) = ts->ts_shortretry; + TX_SAMP_DBG(data_fail_cnt) = ts->ts_longretry; + TX_SAMP_DBG(rssi) = ts->ts_rssi; + TX_SAMP_DBG(tid) = ts->tid; + TX_SAMP_DBG(qid) = ts->qid; + + if (ts->ts_flags & ATH9K_TX_BA) { + TX_SAMP_DBG(ba_low) = ts->ba_low; + TX_SAMP_DBG(ba_high) = ts->ba_high; + } else { + TX_SAMP_DBG(ba_low) = 0; + TX_SAMP_DBG(ba_high) = 0; + } + + sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES; + spin_unlock(&sc->debug.samp_lock); +#endif + +#undef TX_SAMP_DBG +} + +static const struct file_operations fops_xmit = { + .read = read_file_xmit, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static const struct file_operations fops_stations = { + .read = read_file_stations, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static const struct file_operations fops_misc = { + .read = read_file_misc, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static const struct file_operations fops_reset = { + .read = read_file_reset, + .open = simple_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, "%22s : %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 = 1600; + ssize_t retval = 0; + + buf = kzalloc(size, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + len += snprintf(buf + len, size - len, + "%22s : %10u\n", "CRC ERR", + sc->debug.stats.rxstats.crc_err); + len += snprintf(buf + len, size - len, + "%22s : %10u\n", "DECRYPT CRC ERR", + sc->debug.stats.rxstats.decrypt_crc_err); + len += snprintf(buf + len, size - len, + "%22s : %10u\n", "PHY ERR", + sc->debug.stats.rxstats.phy_err); + len += snprintf(buf + len, size - len, + "%22s : %10u\n", "MIC ERR", + sc->debug.stats.rxstats.mic_err); + len += snprintf(buf + len, size - len, + "%22s : %10u\n", "PRE-DELIM CRC ERR", + sc->debug.stats.rxstats.pre_delim_crc_err); + len += snprintf(buf + len, size - len, + "%22s : %10u\n", "POST-DELIM CRC ERR", + sc->debug.stats.rxstats.post_delim_crc_err); + len += snprintf(buf + len, size - len, + "%22s : %10u\n", "DECRYPT BUSY ERR", + sc->debug.stats.rxstats.decrypt_busy_err); + + PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN); + PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING); + PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY); + PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE); + PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH); + PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR); + PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE); + PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR); + PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING); + PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY); + PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL); + PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL); + PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP); + PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE); + PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART); + PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT); + PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING); + PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC); + PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL); + PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE); + PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART); + PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL); + PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP); + PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR); + PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL); + PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL); + + len += snprintf(buf + len, size - len, + "%22s : %10u\n", "RX-Pkts-All", + sc->debug.stats.rxstats.rx_pkts_all); + len += snprintf(buf + len, size - len, + "%22s : %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]++ +#define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\ + [sc->debug.rsidx].c) + + 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); + if (rs->rs_phyerr < ATH9K_PHYERR_MAX) + RX_PHY_ERR_INC(rs->rs_phyerr); + } + +#ifdef CONFIG_ATH9K_MAC_DEBUG + spin_lock(&sc->debug.samp_lock); + RX_SAMP_DBG(jiffies) = jiffies; + RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0; + RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1; + RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2; + RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0; + RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1; + RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2; + RX_SAMP_DBG(antenna) = rs->rs_antenna; + RX_SAMP_DBG(rssi) = rs->rs_rssi; + RX_SAMP_DBG(rate) = rs->rs_rate; + RX_SAMP_DBG(is_mybeacon) = rs->is_mybeacon; + + sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES; + spin_unlock(&sc->debug.samp_lock); + +#endif + +#undef RX_STAT_INC +#undef RX_PHY_ERR_INC +#undef RX_SAMP_DBG +} + +static const struct file_operations fops_recv = { + .read = read_file_recv, + .open = simple_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 = simple_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 = simple_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 */ +}; + +static ssize_t read_file_dump_nfcal(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; + struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist; + struct ath_common *common = ath9k_hw_common(ah); + struct ieee80211_conf *conf = &common->hw->conf; + u32 len = 0, size = 1500; + u32 i, j; + ssize_t retval = 0; + char *buf; + u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask; + u8 nread; + + buf = kzalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + len += snprintf(buf + len, size - len, + "Channel Noise Floor : %d\n", ah->noise); + len += snprintf(buf + len, size - len, + "Chain | privNF | # Readings | NF Readings\n"); + for (i = 0; i < NUM_NF_READINGS; i++) { + if (!(chainmask & (1 << i)) || + ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf))) + continue; + + nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount; + len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t", + i, h[i].privNF, nread); + for (j = 0; j < nread; j++) + len += snprintf(buf + len, size - len, + " %d", h[i].nfCalBuffer[j]); + len += snprintf(buf + len, size - len, "\n"); + } + + if (len > size) + len = size; + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + return retval; +} + +static const struct file_operations fops_dump_nfcal = { + .read = read_file_dump_nfcal, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t read_file_base_eeprom(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; + u32 len = 0, size = 1500; + ssize_t retval = 0; + char *buf; + + buf = kzalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size); + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + return retval; +} + +static const struct file_operations fops_base_eeprom = { + .read = read_file_base_eeprom, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +static ssize_t read_file_modal_eeprom(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; + u32 len = 0, size = 6000; + char *buf; + size_t retval; + + buf = kzalloc(size, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size); + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + return retval; +} + +static const struct file_operations fops_modal_eeprom = { + .read = read_file_modal_eeprom, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +#ifdef CONFIG_ATH9K_MAC_DEBUG + +void ath9k_debug_samp_bb_mac(struct ath_softc *sc) +{ +#define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c) + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + unsigned long flags; + int i; + + ath9k_ps_wakeup(sc); + + spin_lock_bh(&sc->debug.samp_lock); + + spin_lock_irqsave(&common->cc_lock, flags); + ath_hw_cycle_counters_update(common); + + ATH_SAMP_DBG(cc.cycles) = common->cc_ani.cycles; + ATH_SAMP_DBG(cc.rx_busy) = common->cc_ani.rx_busy; + ATH_SAMP_DBG(cc.rx_frame) = common->cc_ani.rx_frame; + ATH_SAMP_DBG(cc.tx_frame) = common->cc_ani.tx_frame; + spin_unlock_irqrestore(&common->cc_lock, flags); + + ATH_SAMP_DBG(noise) = ah->noise; + + 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))); + + for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) + ATH_SAMP_DBG(dma_dbg_reg_vals[i]) = REG_READ_D(ah, + AR_DMADBG_0 + (i * sizeof(u32))); + + ATH_SAMP_DBG(pcu_obs) = REG_READ_D(ah, AR_OBS_BUS_1); + ATH_SAMP_DBG(pcu_cr) = REG_READ_D(ah, AR_CR); + + memcpy(ATH_SAMP_DBG(nfCalHist), sc->caldata.nfCalHist, + sizeof(ATH_SAMP_DBG(nfCalHist))); + + sc->debug.sampidx = (sc->debug.sampidx + 1) % ATH_DBG_MAX_SAMPLES; + spin_unlock_bh(&sc->debug.samp_lock); + ath9k_ps_restore(sc); + +#undef ATH_SAMP_DBG +} + +static int open_file_bb_mac_samps(struct inode *inode, struct file *file) +{ +#define ATH_SAMP_DBG(c) bb_mac_samp[sampidx].c + struct ath_softc *sc = inode->i_private; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + struct ieee80211_conf *conf = &common->hw->conf; + struct ath_dbg_bb_mac_samp *bb_mac_samp; + struct ath9k_nfcal_hist *h; + int i, j, qcuOffset = 0, dcuOffset = 0; + u32 *qcuBase, *dcuBase, size = 30000, len = 0; + u32 sampidx = 0; + u8 *buf; + u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask; + u8 nread; + + if (sc->sc_flags & SC_OP_INVALID) + return -EAGAIN; + + buf = vmalloc(size); + if (!buf) + return -ENOMEM; + bb_mac_samp = vmalloc(sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES); + if (!bb_mac_samp) { + vfree(buf); + return -ENOMEM; + } + /* Account the current state too */ + ath9k_debug_samp_bb_mac(sc); + + spin_lock_bh(&sc->debug.samp_lock); + memcpy(bb_mac_samp, sc->debug.bb_mac_samp, + sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES); + len += snprintf(buf + len, size - len, + "Current Sample Index: %d\n", sc->debug.sampidx); + spin_unlock_bh(&sc->debug.samp_lock); + + len += snprintf(buf + len, size - len, + "Raw DMA Debug Dump:\n"); + len += snprintf(buf + len, size - len, "Sample |\t"); + for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) + len += snprintf(buf + len, size - len, " DMA Reg%d |\t", i); + len += snprintf(buf + len, size - len, "\n"); + + for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) { + len += snprintf(buf + len, size - len, "%d\t", sampidx); + + for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) + len += snprintf(buf + len, size - len, " %08x\t", + ATH_SAMP_DBG(dma_dbg_reg_vals[i])); + len += snprintf(buf + len, size - len, "\n"); + } + len += snprintf(buf + len, size - len, "\n"); + + len += snprintf(buf + len, size - len, + "Sample Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n"); + for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) { + qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]); + dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]); + + for (i = 0; i < ATH9K_NUM_QUEUES; i++, + qcuOffset += 4, dcuOffset += 5) { + if (i == 8) { + qcuOffset = 0; + qcuBase++; + } + + if (i == 6) { + dcuOffset = 0; + dcuBase++; + } + if (!sc->debug.stats.txstats[i].queued) + continue; + + len += snprintf(buf + len, size - len, + "%4d %7d %2x %1x %2x %2x\n", + sampidx, i, + (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset, + (*qcuBase & (0x8 << qcuOffset)) >> + (qcuOffset + 3), + ATH_SAMP_DBG(dma_dbg_reg_vals[2]) & + (0x7 << (i * 3)) >> (i * 3), + (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset); + } + len += snprintf(buf + len, size - len, "\n"); + } + len += snprintf(buf + len, size - len, + "samp qcu_sh qcu_fh qcu_comp dcu_comp dcu_arb dcu_fp " + "ch_idle_dur ch_idle_dur_val txfifo_val0 txfifo_val1 " + "txfifo_dcu0 txfifo_dcu1 pcu_obs AR_CR\n"); + + for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) { + qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]); + dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]); + + len += snprintf(buf + len, size - len, "%4d %5x %5x ", sampidx, + (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x003c0000) >> 18, + (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x03c00000) >> 22); + len += snprintf(buf + len, size - len, "%7x %8x ", + (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x1c000000) >> 26, + (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x3)); + len += snprintf(buf + len, size - len, "%7x %7x ", + (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x06000000) >> 25, + (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x38000000) >> 27); + len += snprintf(buf + len, size - len, "%7d %12d ", + (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x000003fc) >> 2, + (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000400) >> 10); + len += snprintf(buf + len, size - len, "%12d %12d ", + (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000800) >> 11, + (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00001000) >> 12); + len += snprintf(buf + len, size - len, "%12d %12d ", + (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x0001e000) >> 13, + (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x001e0000) >> 17); + len += snprintf(buf + len, size - len, "0x%07x 0x%07x\n", + ATH_SAMP_DBG(pcu_obs), ATH_SAMP_DBG(pcu_cr)); + } + + len += snprintf(buf + len, size - len, + "Sample ChNoise Chain privNF #Reading Readings\n"); + for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) { + h = ATH_SAMP_DBG(nfCalHist); + if (!ATH_SAMP_DBG(noise)) + continue; + + for (i = 0; i < NUM_NF_READINGS; i++) { + if (!(chainmask & (1 << i)) || + ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf))) + continue; + + nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - + h[i].invalidNFcount; + len += snprintf(buf + len, size - len, + "%4d %5d %4d\t %d\t %d\t", + sampidx, ATH_SAMP_DBG(noise), + i, h[i].privNF, nread); + for (j = 0; j < nread; j++) + len += snprintf(buf + len, size - len, + " %d", h[i].nfCalBuffer[j]); + len += snprintf(buf + len, size - len, "\n"); + } + } + len += snprintf(buf + len, size - len, "\nCycle counters:\n" + "Sample Total Rxbusy Rxframes Txframes\n"); + for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) { + if (!ATH_SAMP_DBG(cc.cycles)) + continue; + len += snprintf(buf + len, size - len, + "%4d %08x %08x %08x %08x\n", + sampidx, ATH_SAMP_DBG(cc.cycles), + ATH_SAMP_DBG(cc.rx_busy), + ATH_SAMP_DBG(cc.rx_frame), + ATH_SAMP_DBG(cc.tx_frame)); + } + + len += snprintf(buf + len, size - len, "Tx status Dump :\n"); + len += snprintf(buf + len, size - len, + "Sample rssi:- ctl0 ctl1 ctl2 ext0 ext1 ext2 comb " + "isok rts_fail data_fail rate tid qid " + "ba_low ba_high tx_before(ms)\n"); + for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) { + for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) { + if (!ATH_SAMP_DBG(ts[i].jiffies)) + continue; + len += snprintf(buf + len, size - len, "%-14d" + "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-4d %-8d " + "%-9d %-4d %-3d %-3d %08x %08x %-11d\n", + sampidx, + ATH_SAMP_DBG(ts[i].rssi_ctl0), + ATH_SAMP_DBG(ts[i].rssi_ctl1), + ATH_SAMP_DBG(ts[i].rssi_ctl2), + ATH_SAMP_DBG(ts[i].rssi_ext0), + ATH_SAMP_DBG(ts[i].rssi_ext1), + ATH_SAMP_DBG(ts[i].rssi_ext2), + ATH_SAMP_DBG(ts[i].rssi), + ATH_SAMP_DBG(ts[i].isok), + ATH_SAMP_DBG(ts[i].rts_fail_cnt), + ATH_SAMP_DBG(ts[i].data_fail_cnt), + ATH_SAMP_DBG(ts[i].rateindex), + ATH_SAMP_DBG(ts[i].tid), + ATH_SAMP_DBG(ts[i].qid), + ATH_SAMP_DBG(ts[i].ba_low), + ATH_SAMP_DBG(ts[i].ba_high), + jiffies_to_msecs(jiffies - + ATH_SAMP_DBG(ts[i].jiffies))); + } + } + + len += snprintf(buf + len, size - len, "Rx status Dump :\n"); + len += snprintf(buf + len, size - len, "Sample rssi:- ctl0 ctl1 ctl2 " + "ext0 ext1 ext2 comb beacon ant rate rx_before(ms)\n"); + for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) { + for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) { + if (!ATH_SAMP_DBG(rs[i].jiffies)) + continue; + len += snprintf(buf + len, size - len, "%-14d" + "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-9s %-2d %02x %-13d\n", + sampidx, + ATH_SAMP_DBG(rs[i].rssi_ctl0), + ATH_SAMP_DBG(rs[i].rssi_ctl1), + ATH_SAMP_DBG(rs[i].rssi_ctl2), + ATH_SAMP_DBG(rs[i].rssi_ext0), + ATH_SAMP_DBG(rs[i].rssi_ext1), + ATH_SAMP_DBG(rs[i].rssi_ext2), + ATH_SAMP_DBG(rs[i].rssi), + ATH_SAMP_DBG(rs[i].is_mybeacon) ? + "True" : "False", + ATH_SAMP_DBG(rs[i].antenna), + ATH_SAMP_DBG(rs[i].rate), + jiffies_to_msecs(jiffies - + ATH_SAMP_DBG(rs[i].jiffies))); + } + } + + vfree(bb_mac_samp); + file->private_data = buf; + + return 0; +#undef ATH_SAMP_DBG +} + +static const struct file_operations fops_samps = { + .open = open_file_bb_mac_samps, + .read = ath9k_debugfs_read_buf, + .release = ath9k_debugfs_release_buf, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +#endif + +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 + + ath9k_dfs_init_debug(sc); + + 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("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("reset", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_reset); + 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("disable_ani", S_IRUSR | S_IWUSR, + sc->debug.debugfs_phy, sc, &fops_disable_ani); + 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_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_dump_nfcal); + debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_base_eeprom); + debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_modal_eeprom); +#ifdef CONFIG_ATH9K_MAC_DEBUG + debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_samps); +#endif + + 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); + + return 0; +} |