diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/debug.c | 1181 |
1 files changed, 1181 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..d55ffd7d --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -0,0 +1,1181 @@ +/* + * 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 <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 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); + PRQLE("txq_fifo_pending: ", txq_fifo_pending); + 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; +} |