diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/debug.c | 1105 |
1 files changed, 1105 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c new file mode 100644 index 000000000..4b41160e5 --- /dev/null +++ b/drivers/net/wireless/ath/ath5k/debug.c @@ -0,0 +1,1105 @@ +/* + * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com> + * + * This file is free software: you may copy, redistribute 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 file 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. If not, see <http://www.gnu.org/licenses/>. + * + * + * This file incorporates work covered by the following copyright and + * permission notice: + * + * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting + * Copyright (c) 2004-2005 Atheros Communications, Inc. + * Copyright (c) 2006 Devicescape Software, Inc. + * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> + * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu> + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any + * redistribution must be conditioned upon including a substantially + * similar Disclaimer requirement for further binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, + * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGES. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/export.h> +#include <linux/moduleparam.h> +#include <linux/vmalloc.h> + +#include <linux/seq_file.h> +#include <linux/list.h> +#include "debug.h" +#include "ath5k.h" +#include "reg.h" +#include "base.h" + +static unsigned int ath5k_debug; +module_param_named(debug, ath5k_debug, uint, 0); + + +/* debugfs: registers */ + +struct reg { + const char *name; + int addr; +}; + +#define REG_STRUCT_INIT(r) { #r, r } + +/* just a few random registers, might want to add more */ +static const struct reg regs[] = { + REG_STRUCT_INIT(AR5K_CR), + REG_STRUCT_INIT(AR5K_RXDP), + REG_STRUCT_INIT(AR5K_CFG), + REG_STRUCT_INIT(AR5K_IER), + REG_STRUCT_INIT(AR5K_BCR), + REG_STRUCT_INIT(AR5K_RTSD0), + REG_STRUCT_INIT(AR5K_RTSD1), + REG_STRUCT_INIT(AR5K_TXCFG), + REG_STRUCT_INIT(AR5K_RXCFG), + REG_STRUCT_INIT(AR5K_RXJLA), + REG_STRUCT_INIT(AR5K_MIBC), + REG_STRUCT_INIT(AR5K_TOPS), + REG_STRUCT_INIT(AR5K_RXNOFRM), + REG_STRUCT_INIT(AR5K_TXNOFRM), + REG_STRUCT_INIT(AR5K_RPGTO), + REG_STRUCT_INIT(AR5K_RFCNT), + REG_STRUCT_INIT(AR5K_MISC), + REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT), + REG_STRUCT_INIT(AR5K_ISR), + REG_STRUCT_INIT(AR5K_PISR), + REG_STRUCT_INIT(AR5K_SISR0), + REG_STRUCT_INIT(AR5K_SISR1), + REG_STRUCT_INIT(AR5K_SISR2), + REG_STRUCT_INIT(AR5K_SISR3), + REG_STRUCT_INIT(AR5K_SISR4), + REG_STRUCT_INIT(AR5K_IMR), + REG_STRUCT_INIT(AR5K_PIMR), + REG_STRUCT_INIT(AR5K_SIMR0), + REG_STRUCT_INIT(AR5K_SIMR1), + REG_STRUCT_INIT(AR5K_SIMR2), + REG_STRUCT_INIT(AR5K_SIMR3), + REG_STRUCT_INIT(AR5K_SIMR4), + REG_STRUCT_INIT(AR5K_DCM_ADDR), + REG_STRUCT_INIT(AR5K_DCCFG), + REG_STRUCT_INIT(AR5K_CCFG), + REG_STRUCT_INIT(AR5K_CPC0), + REG_STRUCT_INIT(AR5K_CPC1), + REG_STRUCT_INIT(AR5K_CPC2), + REG_STRUCT_INIT(AR5K_CPC3), + REG_STRUCT_INIT(AR5K_CPCOVF), + REG_STRUCT_INIT(AR5K_RESET_CTL), + REG_STRUCT_INIT(AR5K_SLEEP_CTL), + REG_STRUCT_INIT(AR5K_INTPEND), + REG_STRUCT_INIT(AR5K_SFR), + REG_STRUCT_INIT(AR5K_PCICFG), + REG_STRUCT_INIT(AR5K_GPIOCR), + REG_STRUCT_INIT(AR5K_GPIODO), + REG_STRUCT_INIT(AR5K_SREV), +}; + +static void *reg_start(struct seq_file *seq, loff_t *pos) +{ + return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL; +} + +static void reg_stop(struct seq_file *seq, void *p) +{ + /* nothing to do */ +} + +static void *reg_next(struct seq_file *seq, void *p, loff_t *pos) +{ + ++*pos; + return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL; +} + +static int reg_show(struct seq_file *seq, void *p) +{ + struct ath5k_hw *ah = seq->private; + struct reg *r = p; + seq_printf(seq, "%-25s0x%08x\n", r->name, + ath5k_hw_reg_read(ah, r->addr)); + return 0; +} + +static const struct seq_operations registers_sops = { + .start = reg_start, + .next = reg_next, + .stop = reg_stop, + .show = reg_show +}; + +DEFINE_SEQ_ATTRIBUTE(registers); + +/* debugfs: beacons */ + +static ssize_t read_file_beacon(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + char buf[500]; + unsigned int len = 0; + unsigned int v; + u64 tsf; + + v = ath5k_hw_reg_read(ah, AR5K_BEACON); + len += scnprintf(buf + len, sizeof(buf) - len, + "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n", + "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD, + (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S); + + len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n", + "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP)); + + len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n", + "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT)); + + v = ath5k_hw_reg_read(ah, AR5K_TIMER0); + len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", + "AR5K_TIMER0 (TBTT)", v, v); + + v = ath5k_hw_reg_read(ah, AR5K_TIMER1); + len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", + "AR5K_TIMER1 (DMA)", v, v >> 3); + + v = ath5k_hw_reg_read(ah, AR5K_TIMER2); + len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", + "AR5K_TIMER2 (SWBA)", v, v >> 3); + + v = ath5k_hw_reg_read(ah, AR5K_TIMER3); + len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", + "AR5K_TIMER3 (ATIM)", v, v); + + tsf = ath5k_hw_get_tsf64(ah); + len += scnprintf(buf + len, sizeof(buf) - len, + "TSF\t\t0x%016llx\tTU: %08x\n", + (unsigned long long)tsf, TSF_TO_TU(tsf)); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_beacon(struct file *file, + const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + char buf[20]; + + count = min_t(size_t, count, sizeof(buf) - 1); + if (copy_from_user(buf, userbuf, count)) + return -EFAULT; + + buf[count] = '\0'; + if (strncmp(buf, "disable", 7) == 0) { + AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); + pr_info("debugfs disable beacons\n"); + } else if (strncmp(buf, "enable", 6) == 0) { + AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE); + pr_info("debugfs enable beacons\n"); + } + return count; +} + +static const struct file_operations fops_beacon = { + .read = read_file_beacon, + .write = write_file_beacon, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + + +/* debugfs: reset */ + +static ssize_t write_file_reset(struct file *file, + const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n"); + ieee80211_queue_work(ah->hw, &ah->reset_work); + return count; +} + +static const struct file_operations fops_reset = { + .write = write_file_reset, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = noop_llseek, +}; + + +/* debugfs: debug level */ + +static const struct { + enum ath5k_debug_level level; + const char *name; + const char *desc; +} dbg_info[] = { + { ATH5K_DEBUG_RESET, "reset", "reset and initialization" }, + { ATH5K_DEBUG_INTR, "intr", "interrupt handling" }, + { ATH5K_DEBUG_MODE, "mode", "mode init/setup" }, + { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" }, + { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" }, + { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" }, + { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" }, + { ATH5K_DEBUG_LED, "led", "LED management" }, + { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" }, + { ATH5K_DEBUG_DMA, "dma", "dma start/stop" }, + { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" }, + { ATH5K_DEBUG_DESC, "desc", "descriptor chains" }, + { ATH5K_DEBUG_ANY, "all", "show all debug levels" }, +}; + +static ssize_t read_file_debug(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + char buf[700]; + unsigned int len = 0; + unsigned int i; + + len += scnprintf(buf + len, sizeof(buf) - len, + "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level); + + for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) { + len += scnprintf(buf + len, sizeof(buf) - len, + "%10s %c 0x%08x - %s\n", dbg_info[i].name, + ah->debug.level & dbg_info[i].level ? '+' : ' ', + dbg_info[i].level, dbg_info[i].desc); + } + len += scnprintf(buf + len, sizeof(buf) - len, + "%10s %c 0x%08x - %s\n", dbg_info[i].name, + ah->debug.level == dbg_info[i].level ? '+' : ' ', + dbg_info[i].level, dbg_info[i].desc); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_debug(struct file *file, + const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + unsigned int i; + char buf[20]; + + count = min_t(size_t, count, sizeof(buf) - 1); + if (copy_from_user(buf, userbuf, count)) + return -EFAULT; + + buf[count] = '\0'; + for (i = 0; i < ARRAY_SIZE(dbg_info); i++) { + if (strncmp(buf, dbg_info[i].name, + strlen(dbg_info[i].name)) == 0) { + ah->debug.level ^= dbg_info[i].level; /* toggle bit */ + break; + } + } + 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, +}; + + +/* debugfs: antenna */ + +static ssize_t read_file_antenna(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + char buf[700]; + unsigned int len = 0; + unsigned int i; + unsigned int v; + + len += scnprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n", + ah->ah_ant_mode); + len += scnprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n", + ah->ah_def_ant); + len += scnprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n", + ah->ah_tx_ant); + + len += scnprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n"); + for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) { + len += scnprintf(buf + len, sizeof(buf) - len, + "[antenna %d]\t%d\t%d\n", + i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]); + } + len += scnprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n", + ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]); + + v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA); + len += scnprintf(buf + len, sizeof(buf) - len, + "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v); + + v = ath5k_hw_reg_read(ah, AR5K_STA_ID1); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n", + (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_STA_ID1_DESC_ANTENNA\t%d\n", + (v & AR5K_STA_ID1_DESC_ANTENNA) != 0); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n", + (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n", + (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0); + + v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL); + len += scnprintf(buf + len, sizeof(buf) - len, + "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n", + (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0); + + v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_PHY_RESTART_DIV_GC\t\t%x\n", + (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S); + + v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n", + (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0); + + v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0); + len += scnprintf(buf + len, sizeof(buf) - len, + "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v); + v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_antenna(struct file *file, + const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + unsigned int i; + char buf[20]; + + count = min_t(size_t, count, sizeof(buf) - 1); + if (copy_from_user(buf, userbuf, count)) + return -EFAULT; + + buf[count] = '\0'; + if (strncmp(buf, "diversity", 9) == 0) { + ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT); + pr_info("debug: enable diversity\n"); + } else if (strncmp(buf, "fixed-a", 7) == 0) { + ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A); + pr_info("debug: fixed antenna A\n"); + } else if (strncmp(buf, "fixed-b", 7) == 0) { + ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B); + pr_info("debug: fixed antenna B\n"); + } else if (strncmp(buf, "clear", 5) == 0) { + for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) { + ah->stats.antenna_rx[i] = 0; + ah->stats.antenna_tx[i] = 0; + } + pr_info("debug: cleared antenna stats\n"); + } + return count; +} + +static const struct file_operations fops_antenna = { + .read = read_file_antenna, + .write = write_file_antenna, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +/* debugfs: misc */ + +static ssize_t read_file_misc(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + char buf[700]; + unsigned int len = 0; + u32 filt = ath5k_hw_get_rx_filter(ah); + + len += scnprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n", + ah->bssidmask); + len += scnprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ", + filt); + if (filt & AR5K_RX_FILTER_UCAST) + len += scnprintf(buf + len, sizeof(buf) - len, " UCAST"); + if (filt & AR5K_RX_FILTER_MCAST) + len += scnprintf(buf + len, sizeof(buf) - len, " MCAST"); + if (filt & AR5K_RX_FILTER_BCAST) + len += scnprintf(buf + len, sizeof(buf) - len, " BCAST"); + if (filt & AR5K_RX_FILTER_CONTROL) + len += scnprintf(buf + len, sizeof(buf) - len, " CONTROL"); + if (filt & AR5K_RX_FILTER_BEACON) + len += scnprintf(buf + len, sizeof(buf) - len, " BEACON"); + if (filt & AR5K_RX_FILTER_PROM) + len += scnprintf(buf + len, sizeof(buf) - len, " PROM"); + if (filt & AR5K_RX_FILTER_XRPOLL) + len += scnprintf(buf + len, sizeof(buf) - len, " XRPOLL"); + if (filt & AR5K_RX_FILTER_PROBEREQ) + len += scnprintf(buf + len, sizeof(buf) - len, " PROBEREQ"); + if (filt & AR5K_RX_FILTER_PHYERR_5212) + len += scnprintf(buf + len, sizeof(buf) - len, " PHYERR-5212"); + if (filt & AR5K_RX_FILTER_RADARERR_5212) + len += scnprintf(buf + len, sizeof(buf) - len, " RADARERR-5212"); + if (filt & AR5K_RX_FILTER_PHYERR_5211) + snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211"); + if (filt & AR5K_RX_FILTER_RADARERR_5211) + len += scnprintf(buf + len, sizeof(buf) - len, " RADARERR-5211"); + + len += scnprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n", + ath_opmode_to_string(ah->opmode), ah->opmode); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static const struct file_operations fops_misc = { + .read = read_file_misc, + .open = simple_open, + .owner = THIS_MODULE, +}; + + +/* debugfs: frameerrors */ + +static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + struct ath5k_statistics *st = &ah->stats; + char buf[700]; + unsigned int len = 0; + int i; + + len += scnprintf(buf + len, sizeof(buf) - len, + "RX\n---------------------\n"); + len += scnprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n", + st->rxerr_crc, + st->rx_all_count > 0 ? + st->rxerr_crc * 100 / st->rx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n", + st->rxerr_phy, + st->rx_all_count > 0 ? + st->rxerr_phy * 100 / st->rx_all_count : 0); + for (i = 0; i < 32; i++) { + if (st->rxerr_phy_code[i]) + len += scnprintf(buf + len, sizeof(buf) - len, + " phy_err[%u]\t%u\n", + i, st->rxerr_phy_code[i]); + } + + len += scnprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n", + st->rxerr_fifo, + st->rx_all_count > 0 ? + st->rxerr_fifo * 100 / st->rx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n", + st->rxerr_decrypt, + st->rx_all_count > 0 ? + st->rxerr_decrypt * 100 / st->rx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n", + st->rxerr_mic, + st->rx_all_count > 0 ? + st->rxerr_mic * 100 / st->rx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n", + st->rxerr_proc, + st->rx_all_count > 0 ? + st->rxerr_proc * 100 / st->rx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n", + st->rxerr_jumbo, + st->rx_all_count > 0 ? + st->rxerr_jumbo * 100 / st->rx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n", + st->rx_all_count); + len += scnprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n", + st->rx_bytes_count); + + len += scnprintf(buf + len, sizeof(buf) - len, + "\nTX\n---------------------\n"); + len += scnprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n", + st->txerr_retry, + st->tx_all_count > 0 ? + st->txerr_retry * 100 / st->tx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n", + st->txerr_fifo, + st->tx_all_count > 0 ? + st->txerr_fifo * 100 / st->tx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n", + st->txerr_filt, + st->tx_all_count > 0 ? + st->txerr_filt * 100 / st->tx_all_count : 0); + len += scnprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n", + st->tx_all_count); + len += scnprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n", + st->tx_bytes_count); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_frameerrors(struct file *file, + const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + struct ath5k_statistics *st = &ah->stats; + char buf[20]; + + count = min_t(size_t, count, sizeof(buf) - 1); + if (copy_from_user(buf, userbuf, count)) + return -EFAULT; + + buf[count] = '\0'; + if (strncmp(buf, "clear", 5) == 0) { + st->rxerr_crc = 0; + st->rxerr_phy = 0; + st->rxerr_fifo = 0; + st->rxerr_decrypt = 0; + st->rxerr_mic = 0; + st->rxerr_proc = 0; + st->rxerr_jumbo = 0; + st->rx_all_count = 0; + st->txerr_retry = 0; + st->txerr_fifo = 0; + st->txerr_filt = 0; + st->tx_all_count = 0; + pr_info("debug: cleared frameerrors stats\n"); + } + return count; +} + +static const struct file_operations fops_frameerrors = { + .read = read_file_frameerrors, + .write = write_file_frameerrors, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + + +/* debugfs: ani */ + +static ssize_t read_file_ani(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + struct ath5k_statistics *st = &ah->stats; + struct ath5k_ani_state *as = &ah->ani_state; + + char buf[700]; + unsigned int len = 0; + + len += scnprintf(buf + len, sizeof(buf) - len, + "HW has PHY error counters:\t%s\n", + ah->ah_capabilities.cap_has_phyerr_counters ? + "yes" : "no"); + len += scnprintf(buf + len, sizeof(buf) - len, + "HW max spur immunity level:\t%d\n", + as->max_spur_level); + len += scnprintf(buf + len, sizeof(buf) - len, + "\nANI state\n--------------------------------------------\n"); + len += scnprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t"); + switch (as->ani_mode) { + case ATH5K_ANI_MODE_OFF: + len += scnprintf(buf + len, sizeof(buf) - len, "OFF\n"); + break; + case ATH5K_ANI_MODE_MANUAL_LOW: + len += scnprintf(buf + len, sizeof(buf) - len, + "MANUAL LOW\n"); + break; + case ATH5K_ANI_MODE_MANUAL_HIGH: + len += scnprintf(buf + len, sizeof(buf) - len, + "MANUAL HIGH\n"); + break; + case ATH5K_ANI_MODE_AUTO: + len += scnprintf(buf + len, sizeof(buf) - len, "AUTO\n"); + break; + default: + len += scnprintf(buf + len, sizeof(buf) - len, + "??? (not good)\n"); + break; + } + len += scnprintf(buf + len, sizeof(buf) - len, + "noise immunity level:\t\t%d\n", + as->noise_imm_level); + len += scnprintf(buf + len, sizeof(buf) - len, + "spur immunity level:\t\t%d\n", + as->spur_level); + len += scnprintf(buf + len, sizeof(buf) - len, + "firstep level:\t\t\t%d\n", + as->firstep_level); + len += scnprintf(buf + len, sizeof(buf) - len, + "OFDM weak signal detection:\t%s\n", + as->ofdm_weak_sig ? "on" : "off"); + len += scnprintf(buf + len, sizeof(buf) - len, + "CCK weak signal detection:\t%s\n", + as->cck_weak_sig ? "on" : "off"); + + len += scnprintf(buf + len, sizeof(buf) - len, + "\nMIB INTERRUPTS:\t\t%u\n", + st->mib_intr); + len += scnprintf(buf + len, sizeof(buf) - len, + "beacon RSSI average:\t%d\n", + (int)ewma_beacon_rssi_read(&ah->ah_beacon_rssi_avg)); + +#define CC_PRINT(_struct, _field) \ + _struct._field, \ + _struct.cycles > 0 ? \ + _struct._field * 100 / _struct.cycles : 0 + + len += scnprintf(buf + len, sizeof(buf) - len, + "profcnt tx\t\t%u\t(%d%%)\n", + CC_PRINT(as->last_cc, tx_frame)); + len += scnprintf(buf + len, sizeof(buf) - len, + "profcnt rx\t\t%u\t(%d%%)\n", + CC_PRINT(as->last_cc, rx_frame)); + len += scnprintf(buf + len, sizeof(buf) - len, + "profcnt busy\t\t%u\t(%d%%)\n", + CC_PRINT(as->last_cc, rx_busy)); +#undef CC_PRINT + len += scnprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n", + as->last_cc.cycles); + len += scnprintf(buf + len, sizeof(buf) - len, + "listen time\t\t%d\tlast: %d\n", + as->listen_time, as->last_listen); + len += scnprintf(buf + len, sizeof(buf) - len, + "OFDM errors\t\t%u\tlast: %u\tsum: %u\n", + as->ofdm_errors, as->last_ofdm_errors, + as->sum_ofdm_errors); + len += scnprintf(buf + len, sizeof(buf) - len, + "CCK errors\t\t%u\tlast: %u\tsum: %u\n", + as->cck_errors, as->last_cck_errors, + as->sum_cck_errors); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_PHYERR_CNT1\t%x\t(=%d)\n", + ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1), + ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - + ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1))); + len += scnprintf(buf + len, sizeof(buf) - len, + "AR5K_PHYERR_CNT2\t%x\t(=%d)\n", + ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2), + ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX - + ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2))); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_ani(struct file *file, + const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + char buf[20]; + + count = min_t(size_t, count, sizeof(buf) - 1); + if (copy_from_user(buf, userbuf, count)) + return -EFAULT; + + buf[count] = '\0'; + if (strncmp(buf, "sens-low", 8) == 0) { + ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH); + } else if (strncmp(buf, "sens-high", 9) == 0) { + ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW); + } else if (strncmp(buf, "ani-off", 7) == 0) { + ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF); + } else if (strncmp(buf, "ani-on", 6) == 0) { + ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO); + } else if (strncmp(buf, "noise-low", 9) == 0) { + ath5k_ani_set_noise_immunity_level(ah, 0); + } else if (strncmp(buf, "noise-high", 10) == 0) { + ath5k_ani_set_noise_immunity_level(ah, + ATH5K_ANI_MAX_NOISE_IMM_LVL); + } else if (strncmp(buf, "spur-low", 8) == 0) { + ath5k_ani_set_spur_immunity_level(ah, 0); + } else if (strncmp(buf, "spur-high", 9) == 0) { + ath5k_ani_set_spur_immunity_level(ah, + ah->ani_state.max_spur_level); + } else if (strncmp(buf, "fir-low", 7) == 0) { + ath5k_ani_set_firstep_level(ah, 0); + } else if (strncmp(buf, "fir-high", 8) == 0) { + ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL); + } else if (strncmp(buf, "ofdm-off", 8) == 0) { + ath5k_ani_set_ofdm_weak_signal_detection(ah, false); + } else if (strncmp(buf, "ofdm-on", 7) == 0) { + ath5k_ani_set_ofdm_weak_signal_detection(ah, true); + } else if (strncmp(buf, "cck-off", 7) == 0) { + ath5k_ani_set_cck_weak_signal_detection(ah, false); + } else if (strncmp(buf, "cck-on", 6) == 0) { + ath5k_ani_set_cck_weak_signal_detection(ah, true); + } + return count; +} + +static const struct file_operations fops_ani = { + .read = read_file_ani, + .write = write_file_ani, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + + +/* debugfs: queues etc */ + +static ssize_t read_file_queue(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + char buf[700]; + unsigned int len = 0; + + struct ath5k_txq *txq; + struct ath5k_buf *bf, *bf0; + int i, n; + + len += scnprintf(buf + len, sizeof(buf) - len, + "available txbuffers: %d\n", ah->txbuf_len); + + for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) { + txq = &ah->txqs[i]; + + len += scnprintf(buf + len, sizeof(buf) - len, + "%02d: %ssetup\n", i, txq->setup ? "" : "not "); + + if (!txq->setup) + continue; + + n = 0; + spin_lock_bh(&txq->lock); + list_for_each_entry_safe(bf, bf0, &txq->q, list) + n++; + spin_unlock_bh(&txq->lock); + + len += scnprintf(buf + len, sizeof(buf) - len, + " len: %d bufs: %d\n", txq->txq_len, n); + len += scnprintf(buf + len, sizeof(buf) - len, + " stuck: %d\n", txq->txq_stuck); + } + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static ssize_t write_file_queue(struct file *file, + const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct ath5k_hw *ah = file->private_data; + char buf[20]; + + count = min_t(size_t, count, sizeof(buf) - 1); + if (copy_from_user(buf, userbuf, count)) + return -EFAULT; + + buf[count] = '\0'; + if (strncmp(buf, "start", 5) == 0) + ieee80211_wake_queues(ah->hw); + else if (strncmp(buf, "stop", 4) == 0) + ieee80211_stop_queues(ah->hw); + + return count; +} + + +static const struct file_operations fops_queue = { + .read = read_file_queue, + .write = write_file_queue, + .open = simple_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + +/* debugfs: eeprom */ + +struct eeprom_private { + u16 *buf; + int len; +}; + +static int open_file_eeprom(struct inode *inode, struct file *file) +{ + struct eeprom_private *ep; + struct ath5k_hw *ah = inode->i_private; + bool res; + int i, ret; + u32 eesize; /* NB: in 16-bit words */ + u16 val, *buf; + + /* Get eeprom size */ + + res = ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_UPPER, &val); + if (!res) + return -EACCES; + + if (val == 0) { + eesize = AR5K_EEPROM_INFO_MAX + AR5K_EEPROM_INFO_BASE; + } else { + eesize = (val & AR5K_EEPROM_SIZE_UPPER_MASK) << + AR5K_EEPROM_SIZE_ENDLOC_SHIFT; + ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_LOWER, &val); + eesize = eesize | val; + } + + if (eesize > 4096) + return -EINVAL; + + /* Create buffer and read in eeprom */ + + buf = vmalloc(array_size(eesize, 2)); + if (!buf) { + ret = -ENOMEM; + goto err; + } + + for (i = 0; i < eesize; ++i) { + if (!ath5k_hw_nvram_read(ah, i, &val)) { + ret = -EIO; + goto freebuf; + } + buf[i] = val; + } + + /* Create private struct and assign to file */ + + ep = kmalloc(sizeof(*ep), GFP_KERNEL); + if (!ep) { + ret = -ENOMEM; + goto freebuf; + } + + ep->buf = buf; + ep->len = eesize * 2; + + file->private_data = (void *)ep; + + return 0; + +freebuf: + vfree(buf); +err: + return ret; + +} + +static ssize_t read_file_eeprom(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct eeprom_private *ep = file->private_data; + + return simple_read_from_buffer(user_buf, count, ppos, ep->buf, ep->len); +} + +static int release_file_eeprom(struct inode *inode, struct file *file) +{ + struct eeprom_private *ep = file->private_data; + + vfree(ep->buf); + kfree(ep); + + return 0; +} + +static const struct file_operations fops_eeprom = { + .open = open_file_eeprom, + .read = read_file_eeprom, + .release = release_file_eeprom, + .owner = THIS_MODULE, +}; + + +void +ath5k_debug_init_device(struct ath5k_hw *ah) +{ + struct dentry *phydir; + + ah->debug.level = ath5k_debug; + + phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir); + if (!phydir) + return; + + debugfs_create_file("debug", 0600, phydir, ah, &fops_debug); + debugfs_create_file("registers", 0400, phydir, ah, ®isters_fops); + debugfs_create_file("beacon", 0600, phydir, ah, &fops_beacon); + debugfs_create_file("reset", 0200, phydir, ah, &fops_reset); + debugfs_create_file("antenna", 0600, phydir, ah, &fops_antenna); + debugfs_create_file("misc", 0400, phydir, ah, &fops_misc); + debugfs_create_file("eeprom", 0400, phydir, ah, &fops_eeprom); + debugfs_create_file("frameerrors", 0600, phydir, ah, &fops_frameerrors); + debugfs_create_file("ani", 0600, phydir, ah, &fops_ani); + debugfs_create_file("queue", 0600, phydir, ah, &fops_queue); + debugfs_create_bool("32khz_clock", 0600, phydir, + &ah->ah_use_32khz_clock); +} + +/* functions used in other places */ + +void +ath5k_debug_dump_bands(struct ath5k_hw *ah) +{ + unsigned int b, i; + + if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS))) + return; + + for (b = 0; b < NUM_NL80211_BANDS; b++) { + struct ieee80211_supported_band *band = &ah->sbands[b]; + char bname[6]; + switch (band->band) { + case NL80211_BAND_2GHZ: + strcpy(bname, "2 GHz"); + break; + case NL80211_BAND_5GHZ: + strcpy(bname, "5 GHz"); + break; + default: + printk(KERN_DEBUG "Band not supported: %d\n", + band->band); + return; + } + printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname, + band->n_channels, band->n_bitrates); + printk(KERN_DEBUG " channels:\n"); + for (i = 0; i < band->n_channels; i++) + printk(KERN_DEBUG " %3d %d %.4x %.4x\n", + ieee80211_frequency_to_channel( + band->channels[i].center_freq), + band->channels[i].center_freq, + band->channels[i].hw_value, + band->channels[i].flags); + printk(KERN_DEBUG " rates:\n"); + for (i = 0; i < band->n_bitrates; i++) + printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n", + band->bitrates[i].bitrate, + band->bitrates[i].hw_value, + band->bitrates[i].flags, + band->bitrates[i].hw_value_short); + } +} + +static inline void +ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done, + struct ath5k_rx_status *rs) +{ + struct ath5k_desc *ds = bf->desc; + struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx; + + printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n", + ds, (unsigned long long)bf->daddr, + ds->ds_link, ds->ds_data, + rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1, + rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1, + !done ? ' ' : (rs->rs_status == 0) ? '*' : '!'); +} + +void +ath5k_debug_printrxbuffs(struct ath5k_hw *ah) +{ + struct ath5k_desc *ds; + struct ath5k_buf *bf; + struct ath5k_rx_status rs = {}; + int status; + + if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC))) + return; + + printk(KERN_DEBUG "rxdp %x, rxlink %p\n", + ath5k_hw_get_rxdp(ah), ah->rxlink); + + spin_lock_bh(&ah->rxbuflock); + list_for_each_entry(bf, &ah->rxbuf, list) { + ds = bf->desc; + status = ah->ah_proc_rx_desc(ah, ds, &rs); + if (!status) + ath5k_debug_printrxbuf(bf, status == 0, &rs); + } + spin_unlock_bh(&ah->rxbuflock); +} + +void +ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf) +{ + struct ath5k_desc *ds = bf->desc; + struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212; + struct ath5k_tx_status ts = {}; + int done; + + if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC))) + return; + + done = ah->ah_proc_tx_desc(ah, bf->desc, &ts); + + printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x " + "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link, + ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1, + td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3, + td->tx_stat.tx_status_0, td->tx_stat.tx_status_1, + done ? ' ' : (ts.ts_status == 0) ? '*' : '!'); +} |