/* * Copyright (c) 2007-2008 Bruno Randolf * * 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 . * * * 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 * Copyright (c) 2007 Luis R. Rodriguez * * 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 #include #include #include #include #include #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 register_seq_ops = { .start = reg_start, .next = reg_next, .stop = reg_stop, .show = reg_show }; static int open_file_registers(struct inode *inode, struct file *file) { struct seq_file *s; int res; res = seq_open(file, ®ister_seq_ops); if (res == 0) { s = file->private_data; s->private = inode->i_private; } return res; } static const struct file_operations fops_registers = { .open = open_file_registers, .read = seq_read, .llseek = seq_lseek, .release = seq_release, .owner = THIS_MODULE, }; /* 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 += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n", "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP)); len += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", "AR5K_TIMER0 (TBTT)", v, v); v = ath5k_hw_reg_read(ah, AR5K_TIMER1); len += snprintf(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 += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n", "AR5K_TIMER3 (ATIM)", v, v); tsf = ath5k_hw_get_tsf64(ah); len += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n", ah->ah_ant_mode); len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n", ah->ah_def_ant); len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n", ah->ah_tx_ant); len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n"); for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) { len += snprintf(buf + len, sizeof(buf) - len, "[antenna %d]\t%d\t%d\n", i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]); } len += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v); v = ath5k_hw_reg_read(ah, AR5K_STA_ID1); len += snprintf(buf + len, sizeof(buf) - len, "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n", (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0); len += snprintf(buf + len, sizeof(buf) - len, "AR5K_STA_ID1_DESC_ANTENNA\t%d\n", (v & AR5K_STA_ID1_DESC_ANTENNA) != 0); len += snprintf(buf + len, sizeof(buf) - len, "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n", (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0); len += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n", ah->bssidmask); len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ", filt); if (filt & AR5K_RX_FILTER_UCAST) len += snprintf(buf + len, sizeof(buf) - len, " UCAST"); if (filt & AR5K_RX_FILTER_MCAST) len += snprintf(buf + len, sizeof(buf) - len, " MCAST"); if (filt & AR5K_RX_FILTER_BCAST) len += snprintf(buf + len, sizeof(buf) - len, " BCAST"); if (filt & AR5K_RX_FILTER_CONTROL) len += snprintf(buf + len, sizeof(buf) - len, " CONTROL"); if (filt & AR5K_RX_FILTER_BEACON) len += snprintf(buf + len, sizeof(buf) - len, " BEACON"); if (filt & AR5K_RX_FILTER_PROM) len += snprintf(buf + len, sizeof(buf) - len, " PROM"); if (filt & AR5K_RX_FILTER_XRPOLL) len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL"); if (filt & AR5K_RX_FILTER_PROBEREQ) len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ"); if (filt & AR5K_RX_FILTER_PHYERR_5212) len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212"); if (filt & AR5K_RX_FILTER_RADARERR_5212) len += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211"); len += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "RX\n---------------------\n"); len += snprintf(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 += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, " phy_err[%u]\t%u\n", i, st->rxerr_phy_code[i]); } len += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n", st->rx_all_count); len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n", st->rx_bytes_count); len += snprintf(buf + len, sizeof(buf) - len, "\nTX\n---------------------\n"); len += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n", st->tx_all_count); len += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "HW has PHY error counters:\t%s\n", ah->ah_capabilities.cap_has_phyerr_counters ? "yes" : "no"); len += snprintf(buf + len, sizeof(buf) - len, "HW max spur immunity level:\t%d\n", as->max_spur_level); len += snprintf(buf + len, sizeof(buf) - len, "\nANI state\n--------------------------------------------\n"); len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t"); switch (as->ani_mode) { case ATH5K_ANI_MODE_OFF: len += snprintf(buf + len, sizeof(buf) - len, "OFF\n"); break; case ATH5K_ANI_MODE_MANUAL_LOW: len += snprintf(buf + len, sizeof(buf) - len, "MANUAL LOW\n"); break; case ATH5K_ANI_MODE_MANUAL_HIGH: len += snprintf(buf + len, sizeof(buf) - len, "MANUAL HIGH\n"); break; case ATH5K_ANI_MODE_AUTO: len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n"); break; default: len += snprintf(buf + len, sizeof(buf) - len, "??? (not good)\n"); break; } len += snprintf(buf + len, sizeof(buf) - len, "noise immunity level:\t\t%d\n", as->noise_imm_level); len += snprintf(buf + len, sizeof(buf) - len, "spur immunity level:\t\t%d\n", as->spur_level); len += snprintf(buf + len, sizeof(buf) - len, "firstep level:\t\t\t%d\n", as->firstep_level); len += snprintf(buf + len, sizeof(buf) - len, "OFDM weak signal detection:\t%s\n", as->ofdm_weak_sig ? "on" : "off"); len += snprintf(buf + len, sizeof(buf) - len, "CCK weak signal detection:\t%s\n", as->cck_weak_sig ? "on" : "off"); len += snprintf(buf + len, sizeof(buf) - len, "\nMIB INTERRUPTS:\t\t%u\n", st->mib_intr); len += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, "profcnt tx\t\t%u\t(%d%%)\n", CC_PRINT(as->last_cc, tx_frame)); len += snprintf(buf + len, sizeof(buf) - len, "profcnt rx\t\t%u\t(%d%%)\n", CC_PRINT(as->last_cc, rx_frame)); len += snprintf(buf + len, sizeof(buf) - len, "profcnt busy\t\t%u\t(%d%%)\n", CC_PRINT(as->last_cc, rx_busy)); #undef CC_PRINT len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n", as->last_cc.cycles); len += snprintf(buf + len, sizeof(buf) - len, "listen time\t\t%d\tlast: %d\n", as->listen_time, as->last_listen); len += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(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 += snprintf(buf + len, sizeof(buf) - len, " len: %d bufs: %d\n", txq->txq_len, n); len += snprintf(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(eesize * 2); if (!buf) { ret = -ENOMEM; goto err; } for (i = 0; i < eesize; ++i) { AR5K_EEPROM_READ(i, val); 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", S_IWUSR | S_IRUSR, phydir, ah, &fops_debug); debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers); debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah, &fops_beacon); debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset); debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah, &fops_antenna); debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc); debugfs_create_file("eeprom", S_IRUSR, phydir, ah, &fops_eeprom); debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah, &fops_frameerrors); debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani); debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah, &fops_queue); debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, 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; BUG_ON(!ah->sbands); 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) ? '*' : '!'); }