/* * Atheros CARL9170 driver * * debug(fs) probing * * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; see the file COPYING. If not, see * http://www.gnu.org/licenses/. * * This file incorporates work covered by the following copyright and * permission notice: * Copyright (c) 2008-2009 Atheros Communications, Inc. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <linux/init.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/seq_file.h> #include <linux/vmalloc.h> #include "carl9170.h" #include "cmd.h" #define ADD(buf, off, max, fmt, args...) \ off += snprintf(&buf[off], max - off, fmt, ##args); static int carl9170_debugfs_open(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; } struct carl9170_debugfs_fops { unsigned int read_bufsize; umode_t attr; char *(*read)(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *len); ssize_t (*write)(struct ar9170 *aru, const char *buf, size_t size); const struct file_operations fops; enum carl9170_device_state req_dev_state; }; static ssize_t carl9170_debugfs_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { struct carl9170_debugfs_fops *dfops; struct ar9170 *ar; char *buf = NULL, *res_buf = NULL; ssize_t ret = 0; int err = 0; if (!count) return 0; ar = file->private_data; if (!ar) return -ENODEV; dfops = container_of(file->f_op, struct carl9170_debugfs_fops, fops); if (!dfops->read) return -ENOSYS; if (dfops->read_bufsize) { buf = vmalloc(dfops->read_bufsize); if (!buf) return -ENOMEM; } mutex_lock(&ar->mutex); if (!CHK_DEV_STATE(ar, dfops->req_dev_state)) { err = -ENODEV; res_buf = buf; goto out_free; } res_buf = dfops->read(ar, buf, dfops->read_bufsize, &ret); if (ret > 0) err = simple_read_from_buffer(userbuf, count, ppos, res_buf, ret); else err = ret; WARN_ON_ONCE(dfops->read_bufsize && (res_buf != buf)); out_free: vfree(res_buf); mutex_unlock(&ar->mutex); return err; } static ssize_t carl9170_debugfs_write(struct file *file, const char __user *userbuf, size_t count, loff_t *ppos) { struct carl9170_debugfs_fops *dfops; struct ar9170 *ar; char *buf = NULL; int err = 0; if (!count) return 0; if (count > PAGE_SIZE) return -E2BIG; ar = file->private_data; if (!ar) return -ENODEV; dfops = container_of(file->f_op, struct carl9170_debugfs_fops, fops); if (!dfops->write) return -ENOSYS; buf = vmalloc(count); if (!buf) return -ENOMEM; if (copy_from_user(buf, userbuf, count)) { err = -EFAULT; goto out_free; } if (mutex_trylock(&ar->mutex) == 0) { err = -EAGAIN; goto out_free; } if (!CHK_DEV_STATE(ar, dfops->req_dev_state)) { err = -ENODEV; goto out_unlock; } err = dfops->write(ar, buf, count); if (err) goto out_unlock; out_unlock: mutex_unlock(&ar->mutex); out_free: vfree(buf); return err; } #define __DEBUGFS_DECLARE_FILE(name, _read, _write, _read_bufsize, \ _attr, _dstate) \ static const struct carl9170_debugfs_fops carl_debugfs_##name ##_ops = {\ .read_bufsize = _read_bufsize, \ .read = _read, \ .write = _write, \ .attr = _attr, \ .req_dev_state = _dstate, \ .fops = { \ .open = carl9170_debugfs_open, \ .read = carl9170_debugfs_read, \ .write = carl9170_debugfs_write, \ .owner = THIS_MODULE \ }, \ } #define DEBUGFS_DECLARE_FILE(name, _read, _write, _read_bufsize, _attr) \ __DEBUGFS_DECLARE_FILE(name, _read, _write, _read_bufsize, \ _attr, CARL9170_STARTED) \ #define DEBUGFS_DECLARE_RO_FILE(name, _read_bufsize) \ DEBUGFS_DECLARE_FILE(name, carl9170_debugfs_##name ##_read, \ NULL, _read_bufsize, S_IRUSR) #define DEBUGFS_DECLARE_WO_FILE(name) \ DEBUGFS_DECLARE_FILE(name, NULL, carl9170_debugfs_##name ##_write,\ 0, S_IWUSR) #define DEBUGFS_DECLARE_RW_FILE(name, _read_bufsize) \ DEBUGFS_DECLARE_FILE(name, carl9170_debugfs_##name ##_read, \ carl9170_debugfs_##name ##_write, \ _read_bufsize, S_IRUSR | S_IWUSR) #define __DEBUGFS_DECLARE_RW_FILE(name, _read_bufsize, _dstate) \ __DEBUGFS_DECLARE_FILE(name, carl9170_debugfs_##name ##_read, \ carl9170_debugfs_##name ##_write, \ _read_bufsize, S_IRUSR | S_IWUSR, _dstate) #define DEBUGFS_READONLY_FILE(name, _read_bufsize, fmt, value...) \ static char *carl9170_debugfs_ ##name ## _read(struct ar9170 *ar, \ char *buf, size_t buf_size,\ ssize_t *len) \ { \ ADD(buf, *len, buf_size, fmt "\n", ##value); \ return buf; \ } \ DEBUGFS_DECLARE_RO_FILE(name, _read_bufsize) static char *carl9170_debugfs_mem_usage_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *len) { ADD(buf, *len, bufsize, "jar: ["); spin_lock_bh(&ar->mem_lock); *len += bitmap_scnprintf(&buf[*len], bufsize - *len, ar->mem_bitmap, ar->fw.mem_blocks); ADD(buf, *len, bufsize, "]\n"); ADD(buf, *len, bufsize, "cookies: used:%3d / total:%3d, allocs:%d\n", bitmap_weight(ar->mem_bitmap, ar->fw.mem_blocks), ar->fw.mem_blocks, atomic_read(&ar->mem_allocs)); ADD(buf, *len, bufsize, "memory: free:%3d (%3d KiB) / total:%3d KiB)\n", atomic_read(&ar->mem_free_blocks), (atomic_read(&ar->mem_free_blocks) * ar->fw.mem_block_size) / 1024, (ar->fw.mem_blocks * ar->fw.mem_block_size) / 1024); spin_unlock_bh(&ar->mem_lock); return buf; } DEBUGFS_DECLARE_RO_FILE(mem_usage, 512); static char *carl9170_debugfs_qos_stat_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *len) { ADD(buf, *len, bufsize, "%s QoS AC\n", modparam_noht ? "Hardware" : "Software"); ADD(buf, *len, bufsize, "[ VO VI " " BE BK ]\n"); spin_lock_bh(&ar->tx_stats_lock); ADD(buf, *len, bufsize, "[length/limit length/limit " "length/limit length/limit ]\n" "[ %3d/%3d %3d/%3d " " %3d/%3d %3d/%3d ]\n\n", ar->tx_stats[0].len, ar->tx_stats[0].limit, ar->tx_stats[1].len, ar->tx_stats[1].limit, ar->tx_stats[2].len, ar->tx_stats[2].limit, ar->tx_stats[3].len, ar->tx_stats[3].limit); ADD(buf, *len, bufsize, "[ total total " " total total ]\n" "[%10d %10d %10d %10d ]\n\n", ar->tx_stats[0].count, ar->tx_stats[1].count, ar->tx_stats[2].count, ar->tx_stats[3].count); spin_unlock_bh(&ar->tx_stats_lock); ADD(buf, *len, bufsize, "[ pend/waittx pend/waittx " " pend/waittx pend/waittx]\n" "[ %3d/%3d %3d/%3d " " %3d/%3d %3d/%3d ]\n\n", skb_queue_len(&ar->tx_pending[0]), skb_queue_len(&ar->tx_status[0]), skb_queue_len(&ar->tx_pending[1]), skb_queue_len(&ar->tx_status[1]), skb_queue_len(&ar->tx_pending[2]), skb_queue_len(&ar->tx_status[2]), skb_queue_len(&ar->tx_pending[3]), skb_queue_len(&ar->tx_status[3])); return buf; } DEBUGFS_DECLARE_RO_FILE(qos_stat, 512); static void carl9170_debugfs_format_frame(struct ar9170 *ar, struct sk_buff *skb, const char *prefix, char *buf, ssize_t *off, ssize_t bufsize) { struct _carl9170_tx_superframe *txc = (void *) skb->data; struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb); struct carl9170_tx_info *arinfo = (void *) txinfo->rate_driver_data; struct ieee80211_hdr *hdr = (void *) txc->frame_data; ADD(buf, *off, bufsize, "%s %p, c:%2x, DA:%pM, sq:%4d, mc:%.4x, " "pc:%.8x, to:%d ms\n", prefix, skb, txc->s.cookie, ieee80211_get_DA(hdr), get_seq_h(hdr), le16_to_cpu(txc->f.mac_control), le32_to_cpu(txc->f.phy_control), jiffies_to_msecs(jiffies - arinfo->timeout)); } static char *carl9170_debugfs_ampdu_state_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *len) { struct carl9170_sta_tid *iter; struct sk_buff *skb; int cnt = 0, fc; int offset; rcu_read_lock(); list_for_each_entry_rcu(iter, &ar->tx_ampdu_list, list) { spin_lock_bh(&iter->lock); ADD(buf, *len, bufsize, "Entry: #%2d TID:%1d, BSN:%4d, " "SNX:%4d, HSN:%4d, BAW:%2d, state:%1d, toggles:%d\n", cnt, iter->tid, iter->bsn, iter->snx, iter->hsn, iter->max, iter->state, iter->counter); ADD(buf, *len, bufsize, "\tWindow: ["); *len += bitmap_scnprintf(&buf[*len], bufsize - *len, iter->bitmap, CARL9170_BAW_BITS); #define BM_STR_OFF(offset) \ ((CARL9170_BAW_BITS - (offset) - 1) / 4 + \ (CARL9170_BAW_BITS - (offset) - 1) / 32 + 1) ADD(buf, *len, bufsize, ",W]\n"); offset = BM_STR_OFF(0); ADD(buf, *len, bufsize, "\tBase Seq: %*s\n", offset, "T"); offset = BM_STR_OFF(SEQ_DIFF(iter->snx, iter->bsn)); ADD(buf, *len, bufsize, "\tNext Seq: %*s\n", offset, "W"); offset = BM_STR_OFF(((int)iter->hsn - (int)iter->bsn) % CARL9170_BAW_BITS); ADD(buf, *len, bufsize, "\tLast Seq: %*s\n", offset, "N"); ADD(buf, *len, bufsize, "\tPre-Aggregation reorder buffer: " " currently queued:%d\n", skb_queue_len(&iter->queue)); fc = 0; skb_queue_walk(&iter->queue, skb) { char prefix[32]; snprintf(prefix, sizeof(prefix), "\t\t%3d :", fc); carl9170_debugfs_format_frame(ar, skb, prefix, buf, len, bufsize); fc++; } spin_unlock_bh(&iter->lock); cnt++; } rcu_read_unlock(); return buf; } DEBUGFS_DECLARE_RO_FILE(ampdu_state, 8000); static void carl9170_debugfs_queue_dump(struct ar9170 *ar, char *buf, ssize_t *len, size_t bufsize, struct sk_buff_head *queue) { struct sk_buff *skb; char prefix[16]; int fc = 0; spin_lock_bh(&queue->lock); skb_queue_walk(queue, skb) { snprintf(prefix, sizeof(prefix), "%3d :", fc); carl9170_debugfs_format_frame(ar, skb, prefix, buf, len, bufsize); fc++; } spin_unlock_bh(&queue->lock); } #define DEBUGFS_QUEUE_DUMP(q, qi) \ static char *carl9170_debugfs_##q ##_##qi ##_read(struct ar9170 *ar, \ char *buf, size_t bufsize, ssize_t *len) \ { \ carl9170_debugfs_queue_dump(ar, buf, len, bufsize, &ar->q[qi]); \ return buf; \ } \ DEBUGFS_DECLARE_RO_FILE(q##_##qi, 8000); static char *carl9170_debugfs_sta_psm_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *len) { ADD(buf, *len, bufsize, "psm state: %s\n", (ar->ps.off_override ? "FORCE CAM" : (ar->ps.state ? "PSM" : "CAM"))); ADD(buf, *len, bufsize, "sleep duration: %d ms.\n", ar->ps.sleep_ms); ADD(buf, *len, bufsize, "last power-state transition: %d ms ago.\n", jiffies_to_msecs(jiffies - ar->ps.last_action)); ADD(buf, *len, bufsize, "last CAM->PSM transition: %d ms ago.\n", jiffies_to_msecs(jiffies - ar->ps.last_slept)); return buf; } DEBUGFS_DECLARE_RO_FILE(sta_psm, 160); static char *carl9170_debugfs_tx_stuck_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *len) { int i; for (i = 0; i < ar->hw->queues; i++) { ADD(buf, *len, bufsize, "TX queue [%d]: %10d max:%10d ms.\n", i, ieee80211_queue_stopped(ar->hw, i) ? jiffies_to_msecs(jiffies - ar->queue_stop_timeout[i]) : 0, jiffies_to_msecs(ar->max_queue_stop_timeout[i])); ar->max_queue_stop_timeout[i] = 0; } return buf; } DEBUGFS_DECLARE_RO_FILE(tx_stuck, 180); static char *carl9170_debugfs_phy_noise_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *len) { int err; err = carl9170_get_noisefloor(ar); if (err) { *len = err; return buf; } ADD(buf, *len, bufsize, "Chain 0: %10d dBm, ext. chan.:%10d dBm\n", ar->noise[0], ar->noise[2]); ADD(buf, *len, bufsize, "Chain 2: %10d dBm, ext. chan.:%10d dBm\n", ar->noise[1], ar->noise[3]); return buf; } DEBUGFS_DECLARE_RO_FILE(phy_noise, 180); static char *carl9170_debugfs_vif_dump_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *len) { struct carl9170_vif_info *iter; int i = 0; ADD(buf, *len, bufsize, "registered VIFs:%d \\ %d\n", ar->vifs, ar->fw.vif_num); ADD(buf, *len, bufsize, "VIF bitmap: ["); *len += bitmap_scnprintf(&buf[*len], bufsize - *len, &ar->vif_bitmap, ar->fw.vif_num); ADD(buf, *len, bufsize, "]\n"); rcu_read_lock(); list_for_each_entry_rcu(iter, &ar->vif_list, list) { struct ieee80211_vif *vif = carl9170_get_vif(iter); ADD(buf, *len, bufsize, "\t%d = [%s VIF, id:%d, type:%x " " mac:%pM %s]\n", i, (carl9170_get_main_vif(ar) == vif ? "Master" : " Slave"), iter->id, vif->type, vif->addr, iter->enable_beacon ? "beaconing " : ""); i++; } rcu_read_unlock(); return buf; } DEBUGFS_DECLARE_RO_FILE(vif_dump, 8000); #define UPDATE_COUNTER(ar, name) ({ \ u32 __tmp[ARRAY_SIZE(name##_regs)]; \ unsigned int __i, __err = -ENODEV; \ \ for (__i = 0; __i < ARRAY_SIZE(name##_regs); __i++) { \ __tmp[__i] = name##_regs[__i].reg; \ ar->debug.stats.name##_counter[__i] = 0; \ } \ \ if (IS_STARTED(ar)) \ __err = carl9170_read_mreg(ar, ARRAY_SIZE(name##_regs), \ __tmp, ar->debug.stats.name##_counter); \ (__err); }) #define TALLY_SUM_UP(ar, name) do { \ unsigned int __i; \ \ for (__i = 0; __i < ARRAY_SIZE(name##_regs); __i++) { \ ar->debug.stats.name##_sum[__i] += \ ar->debug.stats.name##_counter[__i]; \ } \ } while (0) #define DEBUGFS_HW_TALLY_FILE(name, f) \ static char *carl9170_debugfs_##name ## _read(struct ar9170 *ar, \ char *dum, size_t bufsize, ssize_t *ret) \ { \ char *buf; \ int i, max_len, err; \ \ max_len = ARRAY_SIZE(name##_regs) * 80; \ buf = vmalloc(max_len); \ if (!buf) \ return NULL; \ \ err = UPDATE_COUNTER(ar, name); \ if (err) { \ *ret = err; \ return buf; \ } \ \ TALLY_SUM_UP(ar, name); \ \ for (i = 0; i < ARRAY_SIZE(name##_regs); i++) { \ ADD(buf, *ret, max_len, "%22s = %" f "[+%" f "]\n", \ name##_regs[i].nreg, ar->debug.stats.name ##_sum[i],\ ar->debug.stats.name ##_counter[i]); \ } \ \ return buf; \ } \ DEBUGFS_DECLARE_RO_FILE(name, 0); #define DEBUGFS_HW_REG_FILE(name, f) \ static char *carl9170_debugfs_##name ## _read(struct ar9170 *ar, \ char *dum, size_t bufsize, ssize_t *ret) \ { \ char *buf; \ int i, max_len, err; \ \ max_len = ARRAY_SIZE(name##_regs) * 80; \ buf = vmalloc(max_len); \ if (!buf) \ return NULL; \ \ err = UPDATE_COUNTER(ar, name); \ if (err) { \ *ret = err; \ return buf; \ } \ \ for (i = 0; i < ARRAY_SIZE(name##_regs); i++) { \ ADD(buf, *ret, max_len, "%22s = %" f "\n", \ name##_regs[i].nreg, \ ar->debug.stats.name##_counter[i]); \ } \ \ return buf; \ } \ DEBUGFS_DECLARE_RO_FILE(name, 0); static ssize_t carl9170_debugfs_hw_ioread32_write(struct ar9170 *ar, const char *buf, size_t count) { int err = 0, i, n = 0, max_len = 32, res; unsigned int reg, tmp; if (!count) return 0; if (count > max_len) return -E2BIG; res = sscanf(buf, "0x%X %d", ®, &n); if (res < 1) { err = -EINVAL; goto out; } if (res == 1) n = 1; if (n > 15) { err = -EMSGSIZE; goto out; } if ((reg >= 0x280000) || ((reg + (n << 2)) >= 0x280000)) { err = -EADDRNOTAVAIL; goto out; } if (reg & 3) { err = -EINVAL; goto out; } for (i = 0; i < n; i++) { err = carl9170_read_reg(ar, reg + (i << 2), &tmp); if (err) goto out; ar->debug.ring[ar->debug.ring_tail].reg = reg + (i << 2); ar->debug.ring[ar->debug.ring_tail].value = tmp; ar->debug.ring_tail++; ar->debug.ring_tail %= CARL9170_DEBUG_RING_SIZE; } out: return err ? err : count; } static char *carl9170_debugfs_hw_ioread32_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *ret) { int i = 0; while (ar->debug.ring_head != ar->debug.ring_tail) { ADD(buf, *ret, bufsize, "%.8x = %.8x\n", ar->debug.ring[ar->debug.ring_head].reg, ar->debug.ring[ar->debug.ring_head].value); ar->debug.ring_head++; ar->debug.ring_head %= CARL9170_DEBUG_RING_SIZE; if (i++ == 64) break; } ar->debug.ring_head = ar->debug.ring_tail; return buf; } DEBUGFS_DECLARE_RW_FILE(hw_ioread32, CARL9170_DEBUG_RING_SIZE * 40); static ssize_t carl9170_debugfs_bug_write(struct ar9170 *ar, const char *buf, size_t count) { int err; if (count < 1) return -EINVAL; switch (buf[0]) { case 'F': ar->needs_full_reset = true; break; case 'R': if (!IS_STARTED(ar)) { err = -EAGAIN; goto out; } ar->needs_full_reset = false; break; case 'M': err = carl9170_mac_reset(ar); if (err < 0) count = err; goto out; case 'P': err = carl9170_set_channel(ar, ar->hw->conf.channel, ar->hw->conf.channel_type, CARL9170_RFI_COLD); if (err < 0) count = err; goto out; default: return -EINVAL; } carl9170_restart(ar, CARL9170_RR_USER_REQUEST); out: return count; } static char *carl9170_debugfs_bug_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *ret) { ADD(buf, *ret, bufsize, "[P]hy reinit, [R]estart, [F]ull usb reset, " "[M]ac reset\n"); ADD(buf, *ret, bufsize, "firmware restarts:%d, last reason:%d\n", ar->restart_counter, ar->last_reason); ADD(buf, *ret, bufsize, "phy reinit errors:%d (%d)\n", ar->total_chan_fail, ar->chan_fail); ADD(buf, *ret, bufsize, "reported firmware errors:%d\n", ar->fw.err_counter); ADD(buf, *ret, bufsize, "reported firmware BUGs:%d\n", ar->fw.bug_counter); ADD(buf, *ret, bufsize, "pending restart requests:%d\n", atomic_read(&ar->pending_restarts)); return buf; } __DEBUGFS_DECLARE_RW_FILE(bug, 400, CARL9170_STOPPED); static const char *const erp_modes[] = { [CARL9170_ERP_INVALID] = "INVALID", [CARL9170_ERP_AUTO] = "Automatic", [CARL9170_ERP_MAC80211] = "Set by MAC80211", [CARL9170_ERP_OFF] = "Force Off", [CARL9170_ERP_RTS] = "Force RTS", [CARL9170_ERP_CTS] = "Force CTS" }; static char *carl9170_debugfs_erp_read(struct ar9170 *ar, char *buf, size_t bufsize, ssize_t *ret) { ADD(buf, *ret, bufsize, "ERP Setting: (%d) -> %s\n", ar->erp_mode, erp_modes[ar->erp_mode]); return buf; } static ssize_t carl9170_debugfs_erp_write(struct ar9170 *ar, const char *buf, size_t count) { int res, val; if (count < 1) return -EINVAL; res = sscanf(buf, "%d", &val); if (res != 1) return -EINVAL; if (!((val > CARL9170_ERP_INVALID) && (val < __CARL9170_ERP_NUM))) return -EINVAL; ar->erp_mode = val; return count; } DEBUGFS_DECLARE_RW_FILE(erp, 80); static ssize_t carl9170_debugfs_hw_iowrite32_write(struct ar9170 *ar, const char *buf, size_t count) { int err = 0, max_len = 22, res; u32 reg, val; if (!count) return 0; if (count > max_len) return -E2BIG; res = sscanf(buf, "0x%X 0x%X", ®, &val); if (res != 2) { err = -EINVAL; goto out; } if (reg <= 0x100000 || reg >= 0x280000) { err = -EADDRNOTAVAIL; goto out; } if (reg & 3) { err = -EINVAL; goto out; } err = carl9170_write_reg(ar, reg, val); if (err) goto out; out: return err ? err : count; } DEBUGFS_DECLARE_WO_FILE(hw_iowrite32); DEBUGFS_HW_TALLY_FILE(hw_tx_tally, "u"); DEBUGFS_HW_TALLY_FILE(hw_rx_tally, "u"); DEBUGFS_HW_TALLY_FILE(hw_phy_errors, "u"); DEBUGFS_HW_REG_FILE(hw_wlan_queue, ".8x"); DEBUGFS_HW_REG_FILE(hw_pta_queue, ".8x"); DEBUGFS_HW_REG_FILE(hw_ampdu_info, ".8x"); DEBUGFS_QUEUE_DUMP(tx_status, 0); DEBUGFS_QUEUE_DUMP(tx_status, 1); DEBUGFS_QUEUE_DUMP(tx_status, 2); DEBUGFS_QUEUE_DUMP(tx_status, 3); DEBUGFS_QUEUE_DUMP(tx_pending, 0); DEBUGFS_QUEUE_DUMP(tx_pending, 1); DEBUGFS_QUEUE_DUMP(tx_pending, 2); DEBUGFS_QUEUE_DUMP(tx_pending, 3); DEBUGFS_READONLY_FILE(usb_tx_anch_urbs, 20, "%d", atomic_read(&ar->tx_anch_urbs)); DEBUGFS_READONLY_FILE(usb_rx_anch_urbs, 20, "%d", atomic_read(&ar->rx_anch_urbs)); DEBUGFS_READONLY_FILE(usb_rx_work_urbs, 20, "%d", atomic_read(&ar->rx_work_urbs)); DEBUGFS_READONLY_FILE(usb_rx_pool_urbs, 20, "%d", atomic_read(&ar->rx_pool_urbs)); DEBUGFS_READONLY_FILE(tx_total_queued, 20, "%d", atomic_read(&ar->tx_total_queued)); DEBUGFS_READONLY_FILE(tx_ampdu_scheduler, 20, "%d", atomic_read(&ar->tx_ampdu_scheduler)); DEBUGFS_READONLY_FILE(tx_total_pending, 20, "%d", atomic_read(&ar->tx_total_pending)); DEBUGFS_READONLY_FILE(tx_ampdu_list_len, 20, "%d", ar->tx_ampdu_list_len); DEBUGFS_READONLY_FILE(tx_ampdu_upload, 20, "%d", atomic_read(&ar->tx_ampdu_upload)); DEBUGFS_READONLY_FILE(tx_janitor_last_run, 64, "last run:%d ms ago", jiffies_to_msecs(jiffies - ar->tx_janitor_last_run)); DEBUGFS_READONLY_FILE(tx_dropped, 20, "%d", ar->tx_dropped); DEBUGFS_READONLY_FILE(rx_dropped, 20, "%d", ar->rx_dropped); DEBUGFS_READONLY_FILE(sniffer_enabled, 20, "%d", ar->sniffer_enabled); DEBUGFS_READONLY_FILE(rx_software_decryption, 20, "%d", ar->rx_software_decryption); DEBUGFS_READONLY_FILE(ampdu_factor, 20, "%d", ar->current_factor); DEBUGFS_READONLY_FILE(ampdu_density, 20, "%d", ar->current_density); DEBUGFS_READONLY_FILE(beacon_int, 20, "%d TU", ar->global_beacon_int); DEBUGFS_READONLY_FILE(pretbtt, 20, "%d TU", ar->global_pretbtt); void carl9170_debugfs_register(struct ar9170 *ar) { ar->debug_dir = debugfs_create_dir(KBUILD_MODNAME, ar->hw->wiphy->debugfsdir); #define DEBUGFS_ADD(name) \ debugfs_create_file(#name, carl_debugfs_##name ##_ops.attr, \ ar->debug_dir, ar, \ &carl_debugfs_##name ## _ops.fops); DEBUGFS_ADD(usb_tx_anch_urbs); DEBUGFS_ADD(usb_rx_pool_urbs); DEBUGFS_ADD(usb_rx_anch_urbs); DEBUGFS_ADD(usb_rx_work_urbs); DEBUGFS_ADD(tx_total_queued); DEBUGFS_ADD(tx_total_pending); DEBUGFS_ADD(tx_dropped); DEBUGFS_ADD(tx_stuck); DEBUGFS_ADD(tx_ampdu_upload); DEBUGFS_ADD(tx_ampdu_scheduler); DEBUGFS_ADD(tx_ampdu_list_len); DEBUGFS_ADD(rx_dropped); DEBUGFS_ADD(sniffer_enabled); DEBUGFS_ADD(rx_software_decryption); DEBUGFS_ADD(mem_usage); DEBUGFS_ADD(qos_stat); DEBUGFS_ADD(sta_psm); DEBUGFS_ADD(ampdu_state); DEBUGFS_ADD(hw_tx_tally); DEBUGFS_ADD(hw_rx_tally); DEBUGFS_ADD(hw_phy_errors); DEBUGFS_ADD(phy_noise); DEBUGFS_ADD(hw_wlan_queue); DEBUGFS_ADD(hw_pta_queue); DEBUGFS_ADD(hw_ampdu_info); DEBUGFS_ADD(ampdu_density); DEBUGFS_ADD(ampdu_factor); DEBUGFS_ADD(tx_janitor_last_run); DEBUGFS_ADD(tx_status_0); DEBUGFS_ADD(tx_status_1); DEBUGFS_ADD(tx_status_2); DEBUGFS_ADD(tx_status_3); DEBUGFS_ADD(tx_pending_0); DEBUGFS_ADD(tx_pending_1); DEBUGFS_ADD(tx_pending_2); DEBUGFS_ADD(tx_pending_3); DEBUGFS_ADD(hw_ioread32); DEBUGFS_ADD(hw_iowrite32); DEBUGFS_ADD(bug); DEBUGFS_ADD(erp); DEBUGFS_ADD(vif_dump); DEBUGFS_ADD(beacon_int); DEBUGFS_ADD(pretbtt); #undef DEBUGFS_ADD } void carl9170_debugfs_unregister(struct ar9170 *ar) { debugfs_remove_recursive(ar->debug_dir); }