817e11de2d
Location: ath9k/<phy>/interrupt Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
262 lines
8.7 KiB
C
262 lines
8.7 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 "core.h"
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#include "reg.h"
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#include "hw.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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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->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_hal *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->sc_debug.stats.istats.total++;
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if (status & ATH9K_INT_RX)
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sc->sc_debug.stats.istats.rxok++;
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if (status & ATH9K_INT_RXEOL)
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sc->sc_debug.stats.istats.rxeol++;
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if (status & ATH9K_INT_RXORN)
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sc->sc_debug.stats.istats.rxorn++;
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if (status & ATH9K_INT_TX)
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sc->sc_debug.stats.istats.txok++;
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if (status & ATH9K_INT_TXURN)
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sc->sc_debug.stats.istats.txurn++;
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if (status & ATH9K_INT_MIB)
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sc->sc_debug.stats.istats.mib++;
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if (status & ATH9K_INT_RXPHY)
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sc->sc_debug.stats.istats.rxphyerr++;
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if (status & ATH9K_INT_RXKCM)
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sc->sc_debug.stats.istats.rx_keycache_miss++;
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if (status & ATH9K_INT_SWBA)
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sc->sc_debug.stats.istats.swba++;
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if (status & ATH9K_INT_BMISS)
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sc->sc_debug.stats.istats.bmiss++;
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if (status & ATH9K_INT_BNR)
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sc->sc_debug.stats.istats.bnr++;
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if (status & ATH9K_INT_CST)
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sc->sc_debug.stats.istats.cst++;
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if (status & ATH9K_INT_GTT)
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sc->sc_debug.stats.istats.gtt++;
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if (status & ATH9K_INT_TIM)
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sc->sc_debug.stats.istats.tim++;
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if (status & ATH9K_INT_CABEND)
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sc->sc_debug.stats.istats.cabend++;
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if (status & ATH9K_INT_DTIMSYNC)
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sc->sc_debug.stats.istats.dtimsync++;
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if (status & ATH9K_INT_DTIM)
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sc->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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->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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int ath9k_init_debug(struct ath_softc *sc)
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{
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sc->sc_debug.debug_mask = ath9k_debug;
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sc->sc_debug.debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
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if (!sc->sc_debug.debugfs_root)
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goto err;
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sc->sc_debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
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sc->sc_debug.debugfs_root);
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if (!sc->sc_debug.debugfs_phy)
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goto err;
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sc->sc_debug.debugfs_dma = debugfs_create_file("dma", S_IRUGO,
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sc->sc_debug.debugfs_phy, sc, &fops_dma);
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if (!sc->sc_debug.debugfs_dma)
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goto err;
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sc->sc_debug.debugfs_interrupt = debugfs_create_file("interrupt",
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S_IRUGO,
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sc->sc_debug.debugfs_phy,
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sc, &fops_interrupt);
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if (!sc->sc_debug.debugfs_interrupt)
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goto err;
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return 0;
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err:
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ath9k_exit_debug(sc);
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return -ENOMEM;
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}
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void ath9k_exit_debug(struct ath_softc *sc)
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{
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debugfs_remove(sc->sc_debug.debugfs_interrupt);
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debugfs_remove(sc->sc_debug.debugfs_dma);
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debugfs_remove(sc->sc_debug.debugfs_phy);
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debugfs_remove(sc->sc_debug.debugfs_root);
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}
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