mirror of https://gitee.com/openkylin/linux.git
773 lines
21 KiB
C
773 lines
21 KiB
C
/*
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* Copyright (c) 2004-2011 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 <linux/circ_buf.h>
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#include <linux/fs.h>
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#include "debug.h"
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#include "target.h"
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struct ath6kl_fwlog_slot {
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__le32 timestamp;
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__le32 length;
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/* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */
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u8 payload[0];
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};
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#define ATH6KL_FWLOG_SIZE 32768
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#define ATH6KL_FWLOG_SLOT_SIZE (sizeof(struct ath6kl_fwlog_slot) + \
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ATH6KL_FWLOG_PAYLOAD_SIZE)
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#define ATH6KL_FWLOG_VALID_MASK 0x1ffff
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int ath6kl_printk(const char *level, const char *fmt, ...)
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{
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struct va_format vaf;
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va_list args;
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int rtn;
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va_start(args, fmt);
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vaf.fmt = fmt;
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vaf.va = &args;
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rtn = printk("%sath6kl: %pV", level, &vaf);
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va_end(args);
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return rtn;
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}
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#ifdef CONFIG_ATH6KL_DEBUG
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#define REG_OUTPUT_LEN_PER_LINE 25
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#define REGTYPE_STR_LEN 100
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struct ath6kl_diag_reg_info {
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u32 reg_start;
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u32 reg_end;
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const char *reg_info;
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};
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static const struct ath6kl_diag_reg_info diag_reg[] = {
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{ 0x20000, 0x200fc, "General DMA and Rx registers" },
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{ 0x28000, 0x28900, "MAC PCU register & keycache" },
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{ 0x20800, 0x20a40, "QCU" },
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{ 0x21000, 0x212f0, "DCU" },
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{ 0x4000, 0x42e4, "RTC" },
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{ 0x540000, 0x540000 + (256 * 1024), "RAM" },
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{ 0x29800, 0x2B210, "Base Band" },
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{ 0x1C000, 0x1C748, "Analog" },
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};
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void ath6kl_dump_registers(struct ath6kl_device *dev,
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struct ath6kl_irq_proc_registers *irq_proc_reg,
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struct ath6kl_irq_enable_reg *irq_enable_reg)
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{
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ath6kl_dbg(ATH6KL_DBG_ANY, ("<------- Register Table -------->\n"));
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if (irq_proc_reg != NULL) {
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"Host Int status: 0x%x\n",
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irq_proc_reg->host_int_status);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"CPU Int status: 0x%x\n",
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irq_proc_reg->cpu_int_status);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"Error Int status: 0x%x\n",
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irq_proc_reg->error_int_status);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"Counter Int status: 0x%x\n",
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irq_proc_reg->counter_int_status);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"Mbox Frame: 0x%x\n",
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irq_proc_reg->mbox_frame);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"Rx Lookahead Valid: 0x%x\n",
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irq_proc_reg->rx_lkahd_valid);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"Rx Lookahead 0: 0x%x\n",
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irq_proc_reg->rx_lkahd[0]);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"Rx Lookahead 1: 0x%x\n",
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irq_proc_reg->rx_lkahd[1]);
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if (dev->ar->mbox_info.gmbox_addr != 0) {
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/*
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* If the target supports GMBOX hardware, dump some
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* additional state.
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*/
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"GMBOX Host Int status 2: 0x%x\n",
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irq_proc_reg->host_int_status2);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"GMBOX RX Avail: 0x%x\n",
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irq_proc_reg->gmbox_rx_avail);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"GMBOX lookahead alias 0: 0x%x\n",
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irq_proc_reg->rx_gmbox_lkahd_alias[0]);
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"GMBOX lookahead alias 1: 0x%x\n",
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irq_proc_reg->rx_gmbox_lkahd_alias[1]);
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}
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}
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if (irq_enable_reg != NULL) {
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"Int status Enable: 0x%x\n",
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irq_enable_reg->int_status_en);
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ath6kl_dbg(ATH6KL_DBG_ANY, "Counter Int status Enable: 0x%x\n",
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irq_enable_reg->cntr_int_status_en);
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}
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ath6kl_dbg(ATH6KL_DBG_ANY, "<------------------------------->\n");
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}
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static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist)
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{
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"--- endpoint: %d svc_id: 0x%X ---\n",
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ep_dist->endpoint, ep_dist->svc_id);
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ath6kl_dbg(ATH6KL_DBG_ANY, " dist_flags : 0x%X\n",
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ep_dist->dist_flags);
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ath6kl_dbg(ATH6KL_DBG_ANY, " cred_norm : %d\n",
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ep_dist->cred_norm);
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ath6kl_dbg(ATH6KL_DBG_ANY, " cred_min : %d\n",
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ep_dist->cred_min);
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ath6kl_dbg(ATH6KL_DBG_ANY, " credits : %d\n",
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ep_dist->credits);
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ath6kl_dbg(ATH6KL_DBG_ANY, " cred_assngd : %d\n",
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ep_dist->cred_assngd);
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ath6kl_dbg(ATH6KL_DBG_ANY, " seek_cred : %d\n",
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ep_dist->seek_cred);
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ath6kl_dbg(ATH6KL_DBG_ANY, " cred_sz : %d\n",
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ep_dist->cred_sz);
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ath6kl_dbg(ATH6KL_DBG_ANY, " cred_per_msg : %d\n",
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ep_dist->cred_per_msg);
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ath6kl_dbg(ATH6KL_DBG_ANY, " cred_to_dist : %d\n",
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ep_dist->cred_to_dist);
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ath6kl_dbg(ATH6KL_DBG_ANY, " txq_depth : %d\n",
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get_queue_depth(&((struct htc_endpoint *)
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ep_dist->htc_rsvd)->txq));
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ath6kl_dbg(ATH6KL_DBG_ANY,
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"----------------------------------\n");
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}
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void dump_cred_dist_stats(struct htc_target *target)
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{
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struct htc_endpoint_credit_dist *ep_list;
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if (!AR_DBG_LVL_CHECK(ATH6KL_DBG_TRC))
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return;
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list_for_each_entry(ep_list, &target->cred_dist_list, list)
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dump_cred_dist(ep_list);
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ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "ctxt:%p dist:%p\n",
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target->cred_dist_cntxt, NULL);
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ath6kl_dbg(ATH6KL_DBG_TRC, "credit distribution, total : %d, free : %d\n",
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target->cred_dist_cntxt->total_avail_credits,
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target->cred_dist_cntxt->cur_free_credits);
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}
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static int ath6kl_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 void ath6kl_debug_fwlog_add(struct ath6kl *ar, const void *buf,
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size_t buf_len)
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{
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struct circ_buf *fwlog = &ar->debug.fwlog_buf;
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size_t space;
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int i;
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/* entries must all be equal size */
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if (WARN_ON(buf_len != ATH6KL_FWLOG_SLOT_SIZE))
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return;
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space = CIRC_SPACE(fwlog->head, fwlog->tail, ATH6KL_FWLOG_SIZE);
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if (space < buf_len)
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/* discard oldest slot */
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fwlog->tail = (fwlog->tail + ATH6KL_FWLOG_SLOT_SIZE) &
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(ATH6KL_FWLOG_SIZE - 1);
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for (i = 0; i < buf_len; i += space) {
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space = CIRC_SPACE_TO_END(fwlog->head, fwlog->tail,
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ATH6KL_FWLOG_SIZE);
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if ((size_t) space > buf_len - i)
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space = buf_len - i;
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memcpy(&fwlog->buf[fwlog->head], buf, space);
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fwlog->head = (fwlog->head + space) & (ATH6KL_FWLOG_SIZE - 1);
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}
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}
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void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len)
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{
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struct ath6kl_fwlog_slot *slot = ar->debug.fwlog_tmp;
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size_t slot_len;
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if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE))
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return;
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spin_lock_bh(&ar->debug.fwlog_lock);
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slot->timestamp = cpu_to_le32(jiffies);
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slot->length = cpu_to_le32(len);
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memcpy(slot->payload, buf, len);
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slot_len = sizeof(*slot) + len;
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if (slot_len < ATH6KL_FWLOG_SLOT_SIZE)
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memset(slot->payload + len, 0,
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ATH6KL_FWLOG_SLOT_SIZE - slot_len);
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ath6kl_debug_fwlog_add(ar, slot, ATH6KL_FWLOG_SLOT_SIZE);
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spin_unlock_bh(&ar->debug.fwlog_lock);
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}
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static bool ath6kl_debug_fwlog_empty(struct ath6kl *ar)
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{
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return CIRC_CNT(ar->debug.fwlog_buf.head,
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ar->debug.fwlog_buf.tail,
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ATH6KL_FWLOG_SLOT_SIZE) == 0;
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}
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static ssize_t ath6kl_fwlog_read(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 ath6kl *ar = file->private_data;
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struct circ_buf *fwlog = &ar->debug.fwlog_buf;
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size_t len = 0, buf_len = count;
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ssize_t ret_cnt;
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char *buf;
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int ccnt;
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buf = vmalloc(buf_len);
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if (!buf)
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return -ENOMEM;
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/* read undelivered logs from firmware */
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ath6kl_read_fwlogs(ar);
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spin_lock_bh(&ar->debug.fwlog_lock);
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while (len < buf_len && !ath6kl_debug_fwlog_empty(ar)) {
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ccnt = CIRC_CNT_TO_END(fwlog->head, fwlog->tail,
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ATH6KL_FWLOG_SIZE);
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if ((size_t) ccnt > buf_len - len)
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ccnt = buf_len - len;
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memcpy(buf + len, &fwlog->buf[fwlog->tail], ccnt);
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len += ccnt;
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fwlog->tail = (fwlog->tail + ccnt) &
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(ATH6KL_FWLOG_SIZE - 1);
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}
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spin_unlock_bh(&ar->debug.fwlog_lock);
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if (WARN_ON(len > buf_len))
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len = buf_len;
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ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
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vfree(buf);
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return ret_cnt;
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}
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static const struct file_operations fops_fwlog = {
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.open = ath6kl_debugfs_open,
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.read = ath6kl_fwlog_read,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t ath6kl_fwlog_mask_read(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 ath6kl *ar = file->private_data;
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char buf[16];
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int len;
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len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask);
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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 ath6kl_fwlog_mask_write(struct file *file,
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const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath6kl *ar = file->private_data;
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int ret;
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ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask);
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if (ret)
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return ret;
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ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi,
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ATH6KL_FWLOG_VALID_MASK,
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ar->debug.fwlog_mask);
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if (ret)
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return ret;
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return count;
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}
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static const struct file_operations fops_fwlog_mask = {
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.open = ath6kl_debugfs_open,
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.read = ath6kl_fwlog_mask_read,
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.write = ath6kl_fwlog_mask_write,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_tgt_stats(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 ath6kl *ar = file->private_data;
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struct target_stats *tgt_stats = &ar->target_stats;
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char *buf;
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unsigned int len = 0, buf_len = 1500;
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int i;
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long left;
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ssize_t ret_cnt;
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buf = kzalloc(buf_len, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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if (down_interruptible(&ar->sem)) {
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kfree(buf);
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return -EBUSY;
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}
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set_bit(STATS_UPDATE_PEND, &ar->flag);
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if (ath6kl_wmi_get_stats_cmd(ar->wmi)) {
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up(&ar->sem);
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kfree(buf);
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return -EIO;
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}
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left = wait_event_interruptible_timeout(ar->event_wq,
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!test_bit(STATS_UPDATE_PEND,
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&ar->flag), WMI_TIMEOUT);
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up(&ar->sem);
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if (left <= 0) {
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kfree(buf);
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return -ETIMEDOUT;
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}
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len += scnprintf(buf + len, buf_len - len, "\n");
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len += scnprintf(buf + len, buf_len - len, "%25s\n",
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"Target Tx stats");
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len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
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"=================");
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Ucast packets", tgt_stats->tx_ucast_pkt);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Bcast packets", tgt_stats->tx_bcast_pkt);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Ucast byte", tgt_stats->tx_ucast_byte);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Bcast byte", tgt_stats->tx_bcast_byte);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Rts success cnt", tgt_stats->tx_rts_success_cnt);
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for (i = 0; i < 4; i++)
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len += scnprintf(buf + len, buf_len - len,
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"%18s %d %10llu\n", "PER on ac",
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i, tgt_stats->tx_pkt_per_ac[i]);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Error", tgt_stats->tx_err);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Fail count", tgt_stats->tx_fail_cnt);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Retry count", tgt_stats->tx_retry_cnt);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Multi retry cnt", tgt_stats->tx_mult_retry_cnt);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Rts fail cnt", tgt_stats->tx_rts_fail_cnt);
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len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n",
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"TKIP counter measure used",
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tgt_stats->tkip_cnter_measures_invoked);
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len += scnprintf(buf + len, buf_len - len, "%25s\n",
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"Target Rx stats");
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len += scnprintf(buf + len, buf_len - len, "%25s\n",
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"=================");
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Ucast packets", tgt_stats->rx_ucast_pkt);
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len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
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"Ucast Rate", tgt_stats->rx_ucast_rate);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Bcast packets", tgt_stats->rx_bcast_pkt);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Ucast byte", tgt_stats->rx_ucast_byte);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Bcast byte", tgt_stats->rx_bcast_byte);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Fragmented pkt", tgt_stats->rx_frgment_pkt);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Error", tgt_stats->rx_err);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"CRC Err", tgt_stats->rx_crc_err);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
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"Key chache miss", tgt_stats->rx_key_cache_miss);
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len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
|
|
"Decrypt Err", tgt_stats->rx_decrypt_err);
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
|
|
"Duplicate frame", tgt_stats->rx_dupl_frame);
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
|
|
"Tkip Mic failure", tgt_stats->tkip_local_mic_fail);
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
|
|
"TKIP format err", tgt_stats->tkip_fmt_err);
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
|
|
"CCMP format Err", tgt_stats->ccmp_fmt_err);
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n",
|
|
"CCMP Replay Err", tgt_stats->ccmp_replays);
|
|
|
|
len += scnprintf(buf + len, buf_len - len, "%25s\n",
|
|
"Misc Target stats");
|
|
len += scnprintf(buf + len, buf_len - len, "%25s\n",
|
|
"=================");
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
|
|
"Beacon Miss count", tgt_stats->cs_bmiss_cnt);
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
|
|
"Num Connects", tgt_stats->cs_connect_cnt);
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
|
|
"Num disconnects", tgt_stats->cs_discon_cnt);
|
|
len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
|
|
"Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);
|
|
|
|
if (len > buf_len)
|
|
len = buf_len;
|
|
|
|
ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
|
|
kfree(buf);
|
|
return ret_cnt;
|
|
}
|
|
|
|
static const struct file_operations fops_tgt_stats = {
|
|
.read = read_file_tgt_stats,
|
|
.open = ath6kl_debugfs_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
#define print_credit_info(fmt_str, ep_list_field) \
|
|
(len += scnprintf(buf + len, buf_len - len, fmt_str, \
|
|
ep_list->ep_list_field))
|
|
#define CREDIT_INFO_DISPLAY_STRING_LEN 200
|
|
#define CREDIT_INFO_LEN 128
|
|
|
|
static ssize_t read_file_credit_dist_stats(struct file *file,
|
|
char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath6kl *ar = file->private_data;
|
|
struct htc_target *target = ar->htc_target;
|
|
struct htc_endpoint_credit_dist *ep_list;
|
|
char *buf;
|
|
unsigned int buf_len, len = 0;
|
|
ssize_t ret_cnt;
|
|
|
|
buf_len = CREDIT_INFO_DISPLAY_STRING_LEN +
|
|
get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN;
|
|
buf = kzalloc(buf_len, GFP_KERNEL);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
|
|
len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
|
|
"Total Avail Credits: ",
|
|
target->cred_dist_cntxt->total_avail_credits);
|
|
len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
|
|
"Free credits :",
|
|
target->cred_dist_cntxt->cur_free_credits);
|
|
|
|
len += scnprintf(buf + len, buf_len - len,
|
|
" Epid Flags Cred_norm Cred_min Credits Cred_assngd"
|
|
" Seek_cred Cred_sz Cred_per_msg Cred_to_dist"
|
|
" qdepth\n");
|
|
|
|
list_for_each_entry(ep_list, &target->cred_dist_list, list) {
|
|
print_credit_info(" %2d", endpoint);
|
|
print_credit_info("%10x", dist_flags);
|
|
print_credit_info("%8d", cred_norm);
|
|
print_credit_info("%9d", cred_min);
|
|
print_credit_info("%9d", credits);
|
|
print_credit_info("%10d", cred_assngd);
|
|
print_credit_info("%13d", seek_cred);
|
|
print_credit_info("%12d", cred_sz);
|
|
print_credit_info("%9d", cred_per_msg);
|
|
print_credit_info("%14d", cred_to_dist);
|
|
len += scnprintf(buf + len, buf_len - len, "%12d\n",
|
|
get_queue_depth(&((struct htc_endpoint *)
|
|
ep_list->htc_rsvd)->txq));
|
|
}
|
|
|
|
if (len > buf_len)
|
|
len = buf_len;
|
|
|
|
ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
kfree(buf);
|
|
return ret_cnt;
|
|
}
|
|
|
|
static const struct file_operations fops_credit_dist_stats = {
|
|
.read = read_file_credit_dist_stats,
|
|
.open = ath6kl_debugfs_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static unsigned long ath6kl_get_num_reg(void)
|
|
{
|
|
int i;
|
|
unsigned long n_reg = 0;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(diag_reg); i++)
|
|
n_reg = n_reg +
|
|
(diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1;
|
|
|
|
return n_reg;
|
|
}
|
|
|
|
static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
|
|
if (reg_addr >= diag_reg[i].reg_start &&
|
|
reg_addr <= diag_reg[i].reg_end)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath6kl *ar = file->private_data;
|
|
u8 buf[50];
|
|
unsigned int len = 0;
|
|
|
|
if (ar->debug.dbgfs_diag_reg)
|
|
len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n",
|
|
ar->debug.dbgfs_diag_reg);
|
|
else
|
|
len += scnprintf(buf + len, sizeof(buf) - len,
|
|
"All diag registers\n");
|
|
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
}
|
|
|
|
static ssize_t ath6kl_regread_write(struct file *file,
|
|
const char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath6kl *ar = file->private_data;
|
|
u8 buf[50];
|
|
unsigned int len;
|
|
unsigned long reg_addr;
|
|
|
|
len = min(count, sizeof(buf) - 1);
|
|
if (copy_from_user(buf, user_buf, len))
|
|
return -EFAULT;
|
|
|
|
buf[len] = '\0';
|
|
|
|
if (strict_strtoul(buf, 0, ®_addr))
|
|
return -EINVAL;
|
|
|
|
if ((reg_addr % 4) != 0)
|
|
return -EINVAL;
|
|
|
|
if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr))
|
|
return -EINVAL;
|
|
|
|
ar->debug.dbgfs_diag_reg = reg_addr;
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations fops_diag_reg_read = {
|
|
.read = ath6kl_regread_read,
|
|
.write = ath6kl_regread_write,
|
|
.open = ath6kl_debugfs_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static int ath6kl_regdump_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct ath6kl *ar = inode->i_private;
|
|
u8 *buf;
|
|
unsigned long int reg_len;
|
|
unsigned int len = 0, n_reg;
|
|
u32 addr;
|
|
__le32 reg_val;
|
|
int i, status;
|
|
|
|
/* Dump all the registers if no register is specified */
|
|
if (!ar->debug.dbgfs_diag_reg)
|
|
n_reg = ath6kl_get_num_reg();
|
|
else
|
|
n_reg = 1;
|
|
|
|
reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE;
|
|
if (n_reg > 1)
|
|
reg_len += REGTYPE_STR_LEN;
|
|
|
|
buf = vmalloc(reg_len);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
|
|
if (n_reg == 1) {
|
|
addr = ar->debug.dbgfs_diag_reg;
|
|
|
|
status = ath6kl_diag_read32(ar,
|
|
TARG_VTOP(ar->target_type, addr),
|
|
(u32 *)®_val);
|
|
if (status)
|
|
goto fail_reg_read;
|
|
|
|
len += scnprintf(buf + len, reg_len - len,
|
|
"0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val));
|
|
goto done;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
|
|
len += scnprintf(buf + len, reg_len - len,
|
|
"%s\n", diag_reg[i].reg_info);
|
|
for (addr = diag_reg[i].reg_start;
|
|
addr <= diag_reg[i].reg_end; addr += 4) {
|
|
status = ath6kl_diag_read32(ar,
|
|
TARG_VTOP(ar->target_type, addr),
|
|
(u32 *)®_val);
|
|
if (status)
|
|
goto fail_reg_read;
|
|
|
|
len += scnprintf(buf + len, reg_len - len,
|
|
"0x%06x 0x%08x\n",
|
|
addr, le32_to_cpu(reg_val));
|
|
}
|
|
}
|
|
|
|
done:
|
|
file->private_data = buf;
|
|
return 0;
|
|
|
|
fail_reg_read:
|
|
ath6kl_warn("Unable to read memory:%u\n", addr);
|
|
vfree(buf);
|
|
return -EIO;
|
|
}
|
|
|
|
static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
u8 *buf = file->private_data;
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
|
|
}
|
|
|
|
static int ath6kl_regdump_release(struct inode *inode, struct file *file)
|
|
{
|
|
vfree(file->private_data);
|
|
return 0;
|
|
}
|
|
|
|
static const struct file_operations fops_reg_dump = {
|
|
.open = ath6kl_regdump_open,
|
|
.read = ath6kl_regdump_read,
|
|
.release = ath6kl_regdump_release,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
int ath6kl_debug_init(struct ath6kl *ar)
|
|
{
|
|
ar->debug.fwlog_buf.buf = vmalloc(ATH6KL_FWLOG_SIZE);
|
|
if (ar->debug.fwlog_buf.buf == NULL)
|
|
return -ENOMEM;
|
|
|
|
ar->debug.fwlog_tmp = kmalloc(ATH6KL_FWLOG_SLOT_SIZE, GFP_KERNEL);
|
|
if (ar->debug.fwlog_tmp == NULL) {
|
|
vfree(ar->debug.fwlog_buf.buf);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
spin_lock_init(&ar->debug.fwlog_lock);
|
|
|
|
/*
|
|
* Actually we are lying here but don't know how to read the mask
|
|
* value from the firmware.
|
|
*/
|
|
ar->debug.fwlog_mask = 0;
|
|
|
|
ar->debugfs_phy = debugfs_create_dir("ath6kl",
|
|
ar->wdev->wiphy->debugfsdir);
|
|
if (!ar->debugfs_phy) {
|
|
vfree(ar->debug.fwlog_buf.buf);
|
|
kfree(ar->debug.fwlog_tmp);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar,
|
|
&fops_tgt_stats);
|
|
|
|
debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar,
|
|
&fops_credit_dist_stats);
|
|
|
|
debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar,
|
|
&fops_fwlog);
|
|
|
|
debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy,
|
|
ar, &fops_fwlog_mask);
|
|
|
|
debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
|
|
&fops_diag_reg_read);
|
|
|
|
debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar,
|
|
&fops_reg_dump);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ath6kl_debug_cleanup(struct ath6kl *ar)
|
|
{
|
|
vfree(ar->debug.fwlog_buf.buf);
|
|
kfree(ar->debug.fwlog_tmp);
|
|
}
|
|
|
|
#endif
|