|  | /****************************************************************************** | 
|  | * | 
|  | * GPL LICENSE SUMMARY | 
|  | * | 
|  | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. | 
|  | * | 
|  | * This program is free software; you can redistribute it and/or modify | 
|  | * it under the terms of version 2 of the GNU General Public License as | 
|  | * published by the Free Software Foundation. | 
|  | * | 
|  | * This program is distributed in the hope that it will be useful, but | 
|  | * WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU | 
|  | * General Public License for more details. | 
|  | * | 
|  | * You should have received a copy of the GNU General Public License | 
|  | * along with this program; if not, write to the Free Software | 
|  | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | 
|  | * USA | 
|  | * | 
|  | * The full GNU General Public License is included in this distribution | 
|  | * in the file called LICENSE.GPL. | 
|  | * | 
|  | * Contact Information: | 
|  | *  Intel Linux Wireless <ilw@linux.intel.com> | 
|  | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | 
|  | *****************************************************************************/ | 
|  |  | 
|  | #include "common.h" | 
|  | #include "3945.h" | 
|  |  | 
|  | static int | 
|  | il3945_stats_flag(struct il_priv *il, char *buf, int bufsz) | 
|  | { | 
|  | int p = 0; | 
|  |  | 
|  | p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", | 
|  | le32_to_cpu(il->_3945.stats.flag)); | 
|  | if (le32_to_cpu(il->_3945.stats.flag) & UCODE_STATS_CLEAR_MSK) | 
|  | p += scnprintf(buf + p, bufsz - p, | 
|  | "\tStatistics have been cleared\n"); | 
|  | p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n", | 
|  | (le32_to_cpu(il->_3945.stats.flag) & | 
|  | UCODE_STATS_FREQUENCY_MSK) ? "2.4 GHz" : "5.2 GHz"); | 
|  | p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n", | 
|  | (le32_to_cpu(il->_3945.stats.flag) & | 
|  | UCODE_STATS_NARROW_BAND_MSK) ? "enabled" : "disabled"); | 
|  | return p; | 
|  | } | 
|  |  | 
|  | ssize_t | 
|  | il3945_ucode_rx_stats_read(struct file *file, char __user *user_buf, | 
|  | size_t count, loff_t *ppos) | 
|  | { | 
|  | struct il_priv *il = file->private_data; | 
|  | int pos = 0; | 
|  | char *buf; | 
|  | int bufsz = | 
|  | sizeof(struct iwl39_stats_rx_phy) * 40 + | 
|  | sizeof(struct iwl39_stats_rx_non_phy) * 40 + 400; | 
|  | ssize_t ret; | 
|  | struct iwl39_stats_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm; | 
|  | struct iwl39_stats_rx_phy *cck, *accum_cck, *delta_cck, *max_cck; | 
|  | struct iwl39_stats_rx_non_phy *general, *accum_general; | 
|  | struct iwl39_stats_rx_non_phy *delta_general, *max_general; | 
|  |  | 
|  | if (!il_is_alive(il)) | 
|  | return -EAGAIN; | 
|  |  | 
|  | buf = kzalloc(bufsz, GFP_KERNEL); | 
|  | if (!buf) { | 
|  | IL_ERR("Can not allocate Buffer\n"); | 
|  | return -ENOMEM; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * The statistic information display here is based on | 
|  | * the last stats notification from uCode | 
|  | * might not reflect the current uCode activity | 
|  | */ | 
|  | ofdm = &il->_3945.stats.rx.ofdm; | 
|  | cck = &il->_3945.stats.rx.cck; | 
|  | general = &il->_3945.stats.rx.general; | 
|  | accum_ofdm = &il->_3945.accum_stats.rx.ofdm; | 
|  | accum_cck = &il->_3945.accum_stats.rx.cck; | 
|  | accum_general = &il->_3945.accum_stats.rx.general; | 
|  | delta_ofdm = &il->_3945.delta_stats.rx.ofdm; | 
|  | delta_cck = &il->_3945.delta_stats.rx.cck; | 
|  | delta_general = &il->_3945.delta_stats.rx.general; | 
|  | max_ofdm = &il->_3945.max_delta.rx.ofdm; | 
|  | max_cck = &il->_3945.max_delta.rx.cck; | 
|  | max_general = &il->_3945.max_delta.rx.general; | 
|  |  | 
|  | pos += il3945_stats_flag(il, buf, bufsz); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "%-32s     current" | 
|  | "acumulative       delta         max\n", | 
|  | "Statistics_Rx - OFDM:"); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "ina_cnt:", | 
|  | le32_to_cpu(ofdm->ina_cnt), accum_ofdm->ina_cnt, | 
|  | delta_ofdm->ina_cnt, max_ofdm->ina_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "fina_cnt:", | 
|  | le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt, | 
|  | delta_ofdm->fina_cnt, max_ofdm->fina_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "plcp_err:", | 
|  | le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err, | 
|  | delta_ofdm->plcp_err, max_ofdm->plcp_err); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "crc32_err:", | 
|  | le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err, | 
|  | delta_ofdm->crc32_err, max_ofdm->crc32_err); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "overrun_err:", | 
|  | le32_to_cpu(ofdm->overrun_err), accum_ofdm->overrun_err, | 
|  | delta_ofdm->overrun_err, max_ofdm->overrun_err); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "early_overrun_err:", | 
|  | le32_to_cpu(ofdm->early_overrun_err), | 
|  | accum_ofdm->early_overrun_err, | 
|  | delta_ofdm->early_overrun_err, | 
|  | max_ofdm->early_overrun_err); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "crc32_good:", | 
|  | le32_to_cpu(ofdm->crc32_good), accum_ofdm->crc32_good, | 
|  | delta_ofdm->crc32_good, max_ofdm->crc32_good); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "false_alarm_cnt:", | 
|  | le32_to_cpu(ofdm->false_alarm_cnt), | 
|  | accum_ofdm->false_alarm_cnt, delta_ofdm->false_alarm_cnt, | 
|  | max_ofdm->false_alarm_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "fina_sync_err_cnt:", | 
|  | le32_to_cpu(ofdm->fina_sync_err_cnt), | 
|  | accum_ofdm->fina_sync_err_cnt, | 
|  | delta_ofdm->fina_sync_err_cnt, | 
|  | max_ofdm->fina_sync_err_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "sfd_timeout:", | 
|  | le32_to_cpu(ofdm->sfd_timeout), accum_ofdm->sfd_timeout, | 
|  | delta_ofdm->sfd_timeout, max_ofdm->sfd_timeout); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "fina_timeout:", | 
|  | le32_to_cpu(ofdm->fina_timeout), accum_ofdm->fina_timeout, | 
|  | delta_ofdm->fina_timeout, max_ofdm->fina_timeout); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "unresponded_rts:", | 
|  | le32_to_cpu(ofdm->unresponded_rts), | 
|  | accum_ofdm->unresponded_rts, delta_ofdm->unresponded_rts, | 
|  | max_ofdm->unresponded_rts); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", | 
|  | "rxe_frame_lmt_ovrun:", | 
|  | le32_to_cpu(ofdm->rxe_frame_limit_overrun), | 
|  | accum_ofdm->rxe_frame_limit_overrun, | 
|  | delta_ofdm->rxe_frame_limit_overrun, | 
|  | max_ofdm->rxe_frame_limit_overrun); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "sent_ack_cnt:", | 
|  | le32_to_cpu(ofdm->sent_ack_cnt), accum_ofdm->sent_ack_cnt, | 
|  | delta_ofdm->sent_ack_cnt, max_ofdm->sent_ack_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "sent_cts_cnt:", | 
|  | le32_to_cpu(ofdm->sent_cts_cnt), accum_ofdm->sent_cts_cnt, | 
|  | delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt); | 
|  |  | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "%-32s     current" | 
|  | "acumulative       delta         max\n", | 
|  | "Statistics_Rx - CCK:"); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "ina_cnt:", | 
|  | le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt, | 
|  | delta_cck->ina_cnt, max_cck->ina_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "fina_cnt:", | 
|  | le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt, | 
|  | delta_cck->fina_cnt, max_cck->fina_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "plcp_err:", | 
|  | le32_to_cpu(cck->plcp_err), accum_cck->plcp_err, | 
|  | delta_cck->plcp_err, max_cck->plcp_err); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "crc32_err:", | 
|  | le32_to_cpu(cck->crc32_err), accum_cck->crc32_err, | 
|  | delta_cck->crc32_err, max_cck->crc32_err); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "overrun_err:", | 
|  | le32_to_cpu(cck->overrun_err), accum_cck->overrun_err, | 
|  | delta_cck->overrun_err, max_cck->overrun_err); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "early_overrun_err:", | 
|  | le32_to_cpu(cck->early_overrun_err), | 
|  | accum_cck->early_overrun_err, | 
|  | delta_cck->early_overrun_err, max_cck->early_overrun_err); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "crc32_good:", | 
|  | le32_to_cpu(cck->crc32_good), accum_cck->crc32_good, | 
|  | delta_cck->crc32_good, max_cck->crc32_good); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "false_alarm_cnt:", | 
|  | le32_to_cpu(cck->false_alarm_cnt), | 
|  | accum_cck->false_alarm_cnt, delta_cck->false_alarm_cnt, | 
|  | max_cck->false_alarm_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "fina_sync_err_cnt:", | 
|  | le32_to_cpu(cck->fina_sync_err_cnt), | 
|  | accum_cck->fina_sync_err_cnt, | 
|  | delta_cck->fina_sync_err_cnt, max_cck->fina_sync_err_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "sfd_timeout:", | 
|  | le32_to_cpu(cck->sfd_timeout), accum_cck->sfd_timeout, | 
|  | delta_cck->sfd_timeout, max_cck->sfd_timeout); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "fina_timeout:", | 
|  | le32_to_cpu(cck->fina_timeout), accum_cck->fina_timeout, | 
|  | delta_cck->fina_timeout, max_cck->fina_timeout); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "unresponded_rts:", | 
|  | le32_to_cpu(cck->unresponded_rts), | 
|  | accum_cck->unresponded_rts, delta_cck->unresponded_rts, | 
|  | max_cck->unresponded_rts); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", | 
|  | "rxe_frame_lmt_ovrun:", | 
|  | le32_to_cpu(cck->rxe_frame_limit_overrun), | 
|  | accum_cck->rxe_frame_limit_overrun, | 
|  | delta_cck->rxe_frame_limit_overrun, | 
|  | max_cck->rxe_frame_limit_overrun); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "sent_ack_cnt:", | 
|  | le32_to_cpu(cck->sent_ack_cnt), accum_cck->sent_ack_cnt, | 
|  | delta_cck->sent_ack_cnt, max_cck->sent_ack_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "sent_cts_cnt:", | 
|  | le32_to_cpu(cck->sent_cts_cnt), accum_cck->sent_cts_cnt, | 
|  | delta_cck->sent_cts_cnt, max_cck->sent_cts_cnt); | 
|  |  | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "%-32s     current" | 
|  | "acumulative       delta         max\n", | 
|  | "Statistics_Rx - GENERAL:"); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "bogus_cts:", | 
|  | le32_to_cpu(general->bogus_cts), accum_general->bogus_cts, | 
|  | delta_general->bogus_cts, max_general->bogus_cts); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "bogus_ack:", | 
|  | le32_to_cpu(general->bogus_ack), accum_general->bogus_ack, | 
|  | delta_general->bogus_ack, max_general->bogus_ack); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "non_bssid_frames:", | 
|  | le32_to_cpu(general->non_bssid_frames), | 
|  | accum_general->non_bssid_frames, | 
|  | delta_general->non_bssid_frames, | 
|  | max_general->non_bssid_frames); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "filtered_frames:", | 
|  | le32_to_cpu(general->filtered_frames), | 
|  | accum_general->filtered_frames, | 
|  | delta_general->filtered_frames, | 
|  | max_general->filtered_frames); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", | 
|  | "non_channel_beacons:", | 
|  | le32_to_cpu(general->non_channel_beacons), | 
|  | accum_general->non_channel_beacons, | 
|  | delta_general->non_channel_beacons, | 
|  | max_general->non_channel_beacons); | 
|  |  | 
|  | ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); | 
|  | kfree(buf); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | ssize_t | 
|  | il3945_ucode_tx_stats_read(struct file *file, char __user *user_buf, | 
|  | size_t count, loff_t *ppos) | 
|  | { | 
|  | struct il_priv *il = file->private_data; | 
|  | int pos = 0; | 
|  | char *buf; | 
|  | int bufsz = (sizeof(struct iwl39_stats_tx) * 48) + 250; | 
|  | ssize_t ret; | 
|  | struct iwl39_stats_tx *tx, *accum_tx, *delta_tx, *max_tx; | 
|  |  | 
|  | if (!il_is_alive(il)) | 
|  | return -EAGAIN; | 
|  |  | 
|  | buf = kzalloc(bufsz, GFP_KERNEL); | 
|  | if (!buf) { | 
|  | IL_ERR("Can not allocate Buffer\n"); | 
|  | return -ENOMEM; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * The statistic information display here is based on | 
|  | * the last stats notification from uCode | 
|  | * might not reflect the current uCode activity | 
|  | */ | 
|  | tx = &il->_3945.stats.tx; | 
|  | accum_tx = &il->_3945.accum_stats.tx; | 
|  | delta_tx = &il->_3945.delta_stats.tx; | 
|  | max_tx = &il->_3945.max_delta.tx; | 
|  | pos += il3945_stats_flag(il, buf, bufsz); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "%-32s     current" | 
|  | "acumulative       delta         max\n", | 
|  | "Statistics_Tx:"); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "preamble:", | 
|  | le32_to_cpu(tx->preamble_cnt), accum_tx->preamble_cnt, | 
|  | delta_tx->preamble_cnt, max_tx->preamble_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "rx_detected_cnt:", | 
|  | le32_to_cpu(tx->rx_detected_cnt), | 
|  | accum_tx->rx_detected_cnt, delta_tx->rx_detected_cnt, | 
|  | max_tx->rx_detected_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "bt_prio_defer_cnt:", | 
|  | le32_to_cpu(tx->bt_prio_defer_cnt), | 
|  | accum_tx->bt_prio_defer_cnt, delta_tx->bt_prio_defer_cnt, | 
|  | max_tx->bt_prio_defer_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "bt_prio_kill_cnt:", | 
|  | le32_to_cpu(tx->bt_prio_kill_cnt), | 
|  | accum_tx->bt_prio_kill_cnt, delta_tx->bt_prio_kill_cnt, | 
|  | max_tx->bt_prio_kill_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "few_bytes_cnt:", | 
|  | le32_to_cpu(tx->few_bytes_cnt), accum_tx->few_bytes_cnt, | 
|  | delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "cts_timeout:", | 
|  | le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout, | 
|  | delta_tx->cts_timeout, max_tx->cts_timeout); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "ack_timeout:", | 
|  | le32_to_cpu(tx->ack_timeout), accum_tx->ack_timeout, | 
|  | delta_tx->ack_timeout, max_tx->ack_timeout); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "expected_ack_cnt:", | 
|  | le32_to_cpu(tx->expected_ack_cnt), | 
|  | accum_tx->expected_ack_cnt, delta_tx->expected_ack_cnt, | 
|  | max_tx->expected_ack_cnt); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "actual_ack_cnt:", | 
|  | le32_to_cpu(tx->actual_ack_cnt), accum_tx->actual_ack_cnt, | 
|  | delta_tx->actual_ack_cnt, max_tx->actual_ack_cnt); | 
|  |  | 
|  | ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); | 
|  | kfree(buf); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | ssize_t | 
|  | il3945_ucode_general_stats_read(struct file *file, char __user *user_buf, | 
|  | size_t count, loff_t *ppos) | 
|  | { | 
|  | struct il_priv *il = file->private_data; | 
|  | int pos = 0; | 
|  | char *buf; | 
|  | int bufsz = sizeof(struct iwl39_stats_general) * 10 + 300; | 
|  | ssize_t ret; | 
|  | struct iwl39_stats_general *general, *accum_general; | 
|  | struct iwl39_stats_general *delta_general, *max_general; | 
|  | struct stats_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg; | 
|  | struct iwl39_stats_div *div, *accum_div, *delta_div, *max_div; | 
|  |  | 
|  | if (!il_is_alive(il)) | 
|  | return -EAGAIN; | 
|  |  | 
|  | buf = kzalloc(bufsz, GFP_KERNEL); | 
|  | if (!buf) { | 
|  | IL_ERR("Can not allocate Buffer\n"); | 
|  | return -ENOMEM; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * The statistic information display here is based on | 
|  | * the last stats notification from uCode | 
|  | * might not reflect the current uCode activity | 
|  | */ | 
|  | general = &il->_3945.stats.general; | 
|  | dbg = &il->_3945.stats.general.dbg; | 
|  | div = &il->_3945.stats.general.div; | 
|  | accum_general = &il->_3945.accum_stats.general; | 
|  | delta_general = &il->_3945.delta_stats.general; | 
|  | max_general = &il->_3945.max_delta.general; | 
|  | accum_dbg = &il->_3945.accum_stats.general.dbg; | 
|  | delta_dbg = &il->_3945.delta_stats.general.dbg; | 
|  | max_dbg = &il->_3945.max_delta.general.dbg; | 
|  | accum_div = &il->_3945.accum_stats.general.div; | 
|  | delta_div = &il->_3945.delta_stats.general.div; | 
|  | max_div = &il->_3945.max_delta.general.div; | 
|  | pos += il3945_stats_flag(il, buf, bufsz); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "%-32s     current" | 
|  | "acumulative       delta         max\n", | 
|  | "Statistics_General:"); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "burst_check:", | 
|  | le32_to_cpu(dbg->burst_check), accum_dbg->burst_check, | 
|  | delta_dbg->burst_check, max_dbg->burst_check); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "burst_count:", | 
|  | le32_to_cpu(dbg->burst_count), accum_dbg->burst_count, | 
|  | delta_dbg->burst_count, max_dbg->burst_count); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "sleep_time:", | 
|  | le32_to_cpu(general->sleep_time), | 
|  | accum_general->sleep_time, delta_general->sleep_time, | 
|  | max_general->sleep_time); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "slots_out:", | 
|  | le32_to_cpu(general->slots_out), accum_general->slots_out, | 
|  | delta_general->slots_out, max_general->slots_out); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "slots_idle:", | 
|  | le32_to_cpu(general->slots_idle), | 
|  | accum_general->slots_idle, delta_general->slots_idle, | 
|  | max_general->slots_idle); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n", | 
|  | le32_to_cpu(general->ttl_timestamp)); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "tx_on_a:", | 
|  | le32_to_cpu(div->tx_on_a), accum_div->tx_on_a, | 
|  | delta_div->tx_on_a, max_div->tx_on_a); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "tx_on_b:", | 
|  | le32_to_cpu(div->tx_on_b), accum_div->tx_on_b, | 
|  | delta_div->tx_on_b, max_div->tx_on_b); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "exec_time:", | 
|  | le32_to_cpu(div->exec_time), accum_div->exec_time, | 
|  | delta_div->exec_time, max_div->exec_time); | 
|  | pos += | 
|  | scnprintf(buf + pos, bufsz - pos, | 
|  | "  %-30s %10u  %10u  %10u  %10u\n", "probe_time:", | 
|  | le32_to_cpu(div->probe_time), accum_div->probe_time, | 
|  | delta_div->probe_time, max_div->probe_time); | 
|  | ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); | 
|  | kfree(buf); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | const struct il_debugfs_ops il3945_debugfs_ops = { | 
|  | .rx_stats_read = il3945_ucode_rx_stats_read, | 
|  | .tx_stats_read = il3945_ucode_tx_stats_read, | 
|  | .general_stats_read = il3945_ucode_general_stats_read, | 
|  | }; |