19d8bc22bc
The driver are trying to create an 'ath9k' directory in debugfs for each device currently. If there are more than one device in the system, the second try will always fail. Changes-licensed-under: ISC Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Imre Kaloz <kaloz@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
554 lines
16 KiB
C
554 lines
16 KiB
C
/*
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* Copyright (c) 2008 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "ath9k.h"
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static unsigned int ath9k_debug = DBG_DEFAULT;
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module_param_named(debug, ath9k_debug, uint, 0);
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static struct dentry *ath9k_debugfs_root;
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void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...)
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{
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if (!sc)
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return;
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if (sc->debug.debug_mask & dbg_mask) {
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va_list args;
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va_start(args, fmt);
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printk(KERN_DEBUG "ath9k: ");
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vprintk(fmt, args);
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va_end(args);
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}
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}
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static int ath9k_debugfs_open(struct inode *inode, struct file *file)
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{
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file->private_data = inode->i_private;
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return 0;
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}
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static ssize_t read_file_dma(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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struct ath_hw *ah = sc->sc_ah;
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char buf[1024];
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unsigned int len = 0;
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u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
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int i, qcuOffset = 0, dcuOffset = 0;
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u32 *qcuBase = &val[0], *dcuBase = &val[4];
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REG_WRITE(ah, AR_MACMISC,
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((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
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(AR_MACMISC_MISC_OBS_BUS_1 <<
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AR_MACMISC_MISC_OBS_BUS_MSB_S)));
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len += snprintf(buf + len, sizeof(buf) - len,
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"Raw DMA Debug values:\n");
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for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
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if (i % 4 == 0)
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len += snprintf(buf + len, sizeof(buf) - len, "\n");
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val[i] = REG_READ(ah, AR_DMADBG_0 + (i * sizeof(u32)));
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len += snprintf(buf + len, sizeof(buf) - len, "%d: %08x ",
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i, val[i]);
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}
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len += snprintf(buf + len, sizeof(buf) - len, "\n\n");
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len += snprintf(buf + len, sizeof(buf) - len,
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"Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
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for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
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if (i == 8) {
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qcuOffset = 0;
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qcuBase++;
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}
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if (i == 6) {
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dcuOffset = 0;
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dcuBase++;
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}
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len += snprintf(buf + len, sizeof(buf) - len,
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"%2d %2x %1x %2x %2x\n",
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i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
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(*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
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val[2] & (0x7 << (i * 3)) >> (i * 3),
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(*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
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}
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len += snprintf(buf + len, sizeof(buf) - len, "\n");
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len += snprintf(buf + len, sizeof(buf) - len,
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"qcu_stitch state: %2x qcu_fetch state: %2x\n",
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(val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
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len += snprintf(buf + len, sizeof(buf) - len,
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"qcu_complete state: %2x dcu_complete state: %2x\n",
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(val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
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len += snprintf(buf + len, sizeof(buf) - len,
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"dcu_arb state: %2x dcu_fp state: %2x\n",
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(val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
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len += snprintf(buf + len, sizeof(buf) - len,
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"chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
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(val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
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len += snprintf(buf + len, sizeof(buf) - len,
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"txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
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(val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
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len += snprintf(buf + len, sizeof(buf) - len,
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"txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
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(val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
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len += snprintf(buf + len, sizeof(buf) - len, "pcu observe: 0x%x \n",
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REG_READ(ah, AR_OBS_BUS_1));
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len += snprintf(buf + len, sizeof(buf) - len,
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"AR_CR: 0x%x \n", REG_READ(ah, AR_CR));
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_dma = {
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.read = read_file_dma,
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.open = ath9k_debugfs_open,
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.owner = THIS_MODULE
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};
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void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
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{
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if (status)
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sc->debug.stats.istats.total++;
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if (status & ATH9K_INT_RX)
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sc->debug.stats.istats.rxok++;
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if (status & ATH9K_INT_RXEOL)
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sc->debug.stats.istats.rxeol++;
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if (status & ATH9K_INT_RXORN)
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sc->debug.stats.istats.rxorn++;
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if (status & ATH9K_INT_TX)
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sc->debug.stats.istats.txok++;
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if (status & ATH9K_INT_TXURN)
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sc->debug.stats.istats.txurn++;
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if (status & ATH9K_INT_MIB)
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sc->debug.stats.istats.mib++;
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if (status & ATH9K_INT_RXPHY)
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sc->debug.stats.istats.rxphyerr++;
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if (status & ATH9K_INT_RXKCM)
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sc->debug.stats.istats.rx_keycache_miss++;
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if (status & ATH9K_INT_SWBA)
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sc->debug.stats.istats.swba++;
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if (status & ATH9K_INT_BMISS)
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sc->debug.stats.istats.bmiss++;
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if (status & ATH9K_INT_BNR)
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sc->debug.stats.istats.bnr++;
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if (status & ATH9K_INT_CST)
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sc->debug.stats.istats.cst++;
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if (status & ATH9K_INT_GTT)
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sc->debug.stats.istats.gtt++;
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if (status & ATH9K_INT_TIM)
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sc->debug.stats.istats.tim++;
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if (status & ATH9K_INT_CABEND)
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sc->debug.stats.istats.cabend++;
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if (status & ATH9K_INT_DTIMSYNC)
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sc->debug.stats.istats.dtimsync++;
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if (status & ATH9K_INT_DTIM)
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sc->debug.stats.istats.dtim++;
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}
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static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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char buf[512];
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unsigned int len = 0;
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_interrupt = {
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.read = read_file_interrupt,
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.open = ath9k_debugfs_open,
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.owner = THIS_MODULE
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};
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static void ath_debug_stat_11n_rc(struct ath_softc *sc, struct sk_buff *skb)
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{
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struct ath_tx_info_priv *tx_info_priv = NULL;
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struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
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struct ieee80211_tx_rate *rates = tx_info->status.rates;
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int final_ts_idx, idx;
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tx_info_priv = ATH_TX_INFO_PRIV(tx_info);
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final_ts_idx = tx_info_priv->tx.ts_rateindex;
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idx = sc->cur_rate_table->info[rates[final_ts_idx].idx].dot11rate;
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sc->debug.stats.n_rcstats[idx].success++;
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}
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static void ath_debug_stat_legacy_rc(struct ath_softc *sc, struct sk_buff *skb)
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{
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struct ath_tx_info_priv *tx_info_priv = NULL;
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struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
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struct ieee80211_tx_rate *rates = tx_info->status.rates;
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int final_ts_idx, idx;
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tx_info_priv = ATH_TX_INFO_PRIV(tx_info);
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final_ts_idx = tx_info_priv->tx.ts_rateindex;
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idx = rates[final_ts_idx].idx;
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sc->debug.stats.legacy_rcstats[idx].success++;
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}
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void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb)
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{
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if (conf_is_ht(&sc->hw->conf))
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ath_debug_stat_11n_rc(sc, skb);
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else
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ath_debug_stat_legacy_rc(sc, skb);
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}
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/* FIXME: legacy rates, later on .. */
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void ath_debug_stat_retries(struct ath_softc *sc, int rix,
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int xretries, int retries, u8 per)
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{
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if (conf_is_ht(&sc->hw->conf)) {
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int idx = sc->cur_rate_table->info[rix].dot11rate;
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sc->debug.stats.n_rcstats[idx].xretries += xretries;
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sc->debug.stats.n_rcstats[idx].retries += retries;
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sc->debug.stats.n_rcstats[idx].per = per;
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}
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}
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static ssize_t ath_read_file_stat_11n_rc(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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char buf[1024];
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unsigned int len = 0;
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int i = 0;
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len += sprintf(buf, "%7s %13s %8s %8s %6s\n\n", "Rate", "Success",
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"Retries", "XRetries", "PER");
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for (i = 0; i <= 15; i++) {
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len += snprintf(buf + len, sizeof(buf) - len,
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"%5s%3d: %8u %8u %8u %8u\n", "MCS", i,
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sc->debug.stats.n_rcstats[i].success,
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sc->debug.stats.n_rcstats[i].retries,
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sc->debug.stats.n_rcstats[i].xretries,
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sc->debug.stats.n_rcstats[i].per);
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}
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static ssize_t ath_read_file_stat_legacy_rc(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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char buf[512];
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unsigned int len = 0;
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int i = 0;
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len += sprintf(buf, "%7s %13s\n\n", "Rate", "Success");
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for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
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len += snprintf(buf + len, sizeof(buf) - len, "%5u: %12u\n",
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sc->cur_rate_table->info[i].ratekbps / 1000,
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sc->debug.stats.legacy_rcstats[i].success);
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}
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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if (conf_is_ht(&sc->hw->conf))
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return ath_read_file_stat_11n_rc(file, user_buf, count, ppos);
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else
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return ath_read_file_stat_legacy_rc(file, user_buf, count ,ppos);
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}
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static const struct file_operations fops_rcstat = {
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.read = read_file_rcstat,
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.open = ath9k_debugfs_open,
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.owner = THIS_MODULE
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};
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static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
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{
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switch (state) {
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case ATH_WIPHY_INACTIVE:
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return "INACTIVE";
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case ATH_WIPHY_ACTIVE:
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return "ACTIVE";
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case ATH_WIPHY_PAUSING:
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return "PAUSING";
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case ATH_WIPHY_PAUSED:
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return "PAUSED";
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case ATH_WIPHY_SCAN:
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return "SCAN";
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}
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return "?";
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}
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static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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char buf[512];
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unsigned int len = 0;
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int i;
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u8 addr[ETH_ALEN];
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len += snprintf(buf + len, sizeof(buf) - len,
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"primary: %s (%s chan=%d ht=%d)\n",
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wiphy_name(sc->pri_wiphy->hw->wiphy),
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ath_wiphy_state_str(sc->pri_wiphy->state),
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sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
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for (i = 0; i < sc->num_sec_wiphy; i++) {
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struct ath_wiphy *aphy = sc->sec_wiphy[i];
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if (aphy == NULL)
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continue;
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len += snprintf(buf + len, sizeof(buf) - len,
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"secondary: %s (%s chan=%d ht=%d)\n",
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wiphy_name(aphy->hw->wiphy),
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ath_wiphy_state_str(aphy->state),
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aphy->chan_idx, aphy->chan_is_ht);
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}
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put_unaligned_le32(REG_READ(sc->sc_ah, AR_STA_ID0), addr);
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put_unaligned_le16(REG_READ(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
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len += snprintf(buf + len, sizeof(buf) - len,
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"addr: %pM\n", addr);
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put_unaligned_le32(REG_READ(sc->sc_ah, AR_BSSMSKL), addr);
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put_unaligned_le16(REG_READ(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
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len += snprintf(buf + len, sizeof(buf) - len,
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"addrmask: %pM\n", addr);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
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{
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int i;
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if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
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return sc->pri_wiphy;
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for (i = 0; i < sc->num_sec_wiphy; i++) {
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struct ath_wiphy *aphy = sc->sec_wiphy[i];
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if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
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return aphy;
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}
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return NULL;
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}
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static int del_wiphy(struct ath_softc *sc, const char *name)
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{
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struct ath_wiphy *aphy = get_wiphy(sc, name);
|
|
if (!aphy)
|
|
return -ENOENT;
|
|
return ath9k_wiphy_del(aphy);
|
|
}
|
|
|
|
static int pause_wiphy(struct ath_softc *sc, const char *name)
|
|
{
|
|
struct ath_wiphy *aphy = get_wiphy(sc, name);
|
|
if (!aphy)
|
|
return -ENOENT;
|
|
return ath9k_wiphy_pause(aphy);
|
|
}
|
|
|
|
static int unpause_wiphy(struct ath_softc *sc, const char *name)
|
|
{
|
|
struct ath_wiphy *aphy = get_wiphy(sc, name);
|
|
if (!aphy)
|
|
return -ENOENT;
|
|
return ath9k_wiphy_unpause(aphy);
|
|
}
|
|
|
|
static int select_wiphy(struct ath_softc *sc, const char *name)
|
|
{
|
|
struct ath_wiphy *aphy = get_wiphy(sc, name);
|
|
if (!aphy)
|
|
return -ENOENT;
|
|
return ath9k_wiphy_select(aphy);
|
|
}
|
|
|
|
static int schedule_wiphy(struct ath_softc *sc, const char *msec)
|
|
{
|
|
ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath_softc *sc = file->private_data;
|
|
char buf[50];
|
|
size_t len;
|
|
|
|
len = min(count, sizeof(buf) - 1);
|
|
if (copy_from_user(buf, user_buf, len))
|
|
return -EFAULT;
|
|
buf[len] = '\0';
|
|
if (len > 0 && buf[len - 1] == '\n')
|
|
buf[len - 1] = '\0';
|
|
|
|
if (strncmp(buf, "add", 3) == 0) {
|
|
int res = ath9k_wiphy_add(sc);
|
|
if (res < 0)
|
|
return res;
|
|
} else if (strncmp(buf, "del=", 4) == 0) {
|
|
int res = del_wiphy(sc, buf + 4);
|
|
if (res < 0)
|
|
return res;
|
|
} else if (strncmp(buf, "pause=", 6) == 0) {
|
|
int res = pause_wiphy(sc, buf + 6);
|
|
if (res < 0)
|
|
return res;
|
|
} else if (strncmp(buf, "unpause=", 8) == 0) {
|
|
int res = unpause_wiphy(sc, buf + 8);
|
|
if (res < 0)
|
|
return res;
|
|
} else if (strncmp(buf, "select=", 7) == 0) {
|
|
int res = select_wiphy(sc, buf + 7);
|
|
if (res < 0)
|
|
return res;
|
|
} else if (strncmp(buf, "schedule=", 9) == 0) {
|
|
int res = schedule_wiphy(sc, buf + 9);
|
|
if (res < 0)
|
|
return res;
|
|
} else
|
|
return -EOPNOTSUPP;
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations fops_wiphy = {
|
|
.read = read_file_wiphy,
|
|
.write = write_file_wiphy,
|
|
.open = ath9k_debugfs_open,
|
|
.owner = THIS_MODULE
|
|
};
|
|
|
|
|
|
int ath9k_init_debug(struct ath_softc *sc)
|
|
{
|
|
sc->debug.debug_mask = ath9k_debug;
|
|
|
|
sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
|
|
ath9k_debugfs_root);
|
|
if (!sc->debug.debugfs_phy)
|
|
goto err;
|
|
|
|
sc->debug.debugfs_dma = debugfs_create_file("dma", S_IRUGO,
|
|
sc->debug.debugfs_phy, sc, &fops_dma);
|
|
if (!sc->debug.debugfs_dma)
|
|
goto err;
|
|
|
|
sc->debug.debugfs_interrupt = debugfs_create_file("interrupt",
|
|
S_IRUGO,
|
|
sc->debug.debugfs_phy,
|
|
sc, &fops_interrupt);
|
|
if (!sc->debug.debugfs_interrupt)
|
|
goto err;
|
|
|
|
sc->debug.debugfs_rcstat = debugfs_create_file("rcstat",
|
|
S_IRUGO,
|
|
sc->debug.debugfs_phy,
|
|
sc, &fops_rcstat);
|
|
if (!sc->debug.debugfs_rcstat)
|
|
goto err;
|
|
|
|
sc->debug.debugfs_wiphy = debugfs_create_file(
|
|
"wiphy", S_IRUGO | S_IWUSR, sc->debug.debugfs_phy, sc,
|
|
&fops_wiphy);
|
|
if (!sc->debug.debugfs_wiphy)
|
|
goto err;
|
|
|
|
return 0;
|
|
err:
|
|
ath9k_exit_debug(sc);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
void ath9k_exit_debug(struct ath_softc *sc)
|
|
{
|
|
debugfs_remove(sc->debug.debugfs_wiphy);
|
|
debugfs_remove(sc->debug.debugfs_rcstat);
|
|
debugfs_remove(sc->debug.debugfs_interrupt);
|
|
debugfs_remove(sc->debug.debugfs_dma);
|
|
debugfs_remove(sc->debug.debugfs_phy);
|
|
}
|
|
|
|
int ath9k_debug_create_root(void)
|
|
{
|
|
ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
|
|
if (!ath9k_debugfs_root)
|
|
return -ENOENT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ath9k_debug_remove_root(void)
|
|
{
|
|
debugfs_remove(ath9k_debugfs_root);
|
|
ath9k_debugfs_root = NULL;
|
|
}
|