// SPDX-License-Identifier: GPL-2.0-only /* * NXP Wireless LAN device driver: debugfs * * Copyright 2011-2020 NXP */ #include #include "main.h" #include "11n.h" static struct dentry *mwifiex_dfs_dir; static char *bss_modes[] = { "UNSPECIFIED", "ADHOC", "STATION", "AP", "AP_VLAN", "WDS", "MONITOR", "MESH_POINT", "P2P_CLIENT", "P2P_GO", "P2P_DEVICE", }; /* * Proc info file read handler. * * This function is called when the 'info' file is opened for reading. * It prints the following driver related information - * - Driver name * - Driver version * - Driver extended version * - Interface name * - BSS mode * - Media state (connected or disconnected) * - MAC address * - Total number of Tx bytes * - Total number of Rx bytes * - Total number of Tx packets * - Total number of Rx packets * - Total number of dropped Tx packets * - Total number of dropped Rx packets * - Total number of corrupted Tx packets * - Total number of corrupted Rx packets * - Carrier status (on or off) * - Tx queue status (started or stopped) * * For STA mode drivers, it also prints the following extra - * - ESSID * - BSSID * - Channel * - Region code * - Multicast count * - Multicast addresses */ static ssize_t mwifiex_info_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (struct mwifiex_private *) file->private_data; struct net_device *netdev = priv->netdev; struct netdev_hw_addr *ha; struct netdev_queue *txq; unsigned long page = get_zeroed_page(GFP_KERNEL); char *p = (char *) page, fmt[64]; struct mwifiex_bss_info info; ssize_t ret; int i = 0; if (!p) return -ENOMEM; memset(&info, 0, sizeof(info)); ret = mwifiex_get_bss_info(priv, &info); if (ret) goto free_and_exit; mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1); mwifiex_get_ver_ext(priv, 0); p += sprintf(p, "driver_name = " "\"mwifiex\"\n"); p += sprintf(p, "driver_version = %s", fmt); p += sprintf(p, "\nverext = %s", priv->version_str); p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name); if (info.bss_mode >= ARRAY_SIZE(bss_modes)) p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode); else p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]); p += sprintf(p, "media_state=\"%s\"\n", (!priv->media_connected ? "Disconnected" : "Connected")); p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr); if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) { p += sprintf(p, "multicast_count=\"%d\"\n", netdev_mc_count(netdev)); p += sprintf(p, "essid=\"%.*s\"\n", info.ssid.ssid_len, info.ssid.ssid); p += sprintf(p, "bssid=\"%pM\"\n", info.bssid); p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan); p += sprintf(p, "country_code = \"%s\"\n", info.country_code); p += sprintf(p, "region_code=\"0x%x\"\n", priv->adapter->region_code); netdev_for_each_mc_addr(ha, netdev) p += sprintf(p, "multicast_address[%d]=\"%pM\"\n", i++, ha->addr); } p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes); p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes); p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets); p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets); p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped); p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped); p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors); p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors); p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev)) ? "on" : "off")); p += sprintf(p, "tx queue"); for (i = 0; i < netdev->num_tx_queues; i++) { txq = netdev_get_tx_queue(netdev, i); p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ? "stopped" : "started"); } p += sprintf(p, "\n"); ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, (unsigned long) p - page); free_and_exit: free_page(page); return ret; } /* * Proc getlog file read handler. * * This function is called when the 'getlog' file is opened for reading * It prints the following log information - * - Number of multicast Tx frames * - Number of failed packets * - Number of Tx retries * - Number of multicast Tx retries * - Number of duplicate frames * - Number of RTS successes * - Number of RTS failures * - Number of ACK failures * - Number of fragmented Rx frames * - Number of multicast Rx frames * - Number of FCS errors * - Number of Tx frames * - WEP ICV error counts * - Number of received beacons * - Number of missed beacons */ static ssize_t mwifiex_getlog_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (struct mwifiex_private *) file->private_data; unsigned long page = get_zeroed_page(GFP_KERNEL); char *p = (char *) page; ssize_t ret; struct mwifiex_ds_get_stats stats; if (!p) return -ENOMEM; memset(&stats, 0, sizeof(stats)); ret = mwifiex_get_stats_info(priv, &stats); if (ret) goto free_and_exit; p += sprintf(p, "\n" "mcasttxframe %u\n" "failed %u\n" "retry %u\n" "multiretry %u\n" "framedup %u\n" "rtssuccess %u\n" "rtsfailure %u\n" "ackfailure %u\n" "rxfrag %u\n" "mcastrxframe %u\n" "fcserror %u\n" "txframe %u\n" "wepicverrcnt-1 %u\n" "wepicverrcnt-2 %u\n" "wepicverrcnt-3 %u\n" "wepicverrcnt-4 %u\n" "bcn_rcv_cnt %u\n" "bcn_miss_cnt %u\n", stats.mcast_tx_frame, stats.failed, stats.retry, stats.multi_retry, stats.frame_dup, stats.rts_success, stats.rts_failure, stats.ack_failure, stats.rx_frag, stats.mcast_rx_frame, stats.fcs_error, stats.tx_frame, stats.wep_icv_error[0], stats.wep_icv_error[1], stats.wep_icv_error[2], stats.wep_icv_error[3], stats.bcn_rcv_cnt, stats.bcn_miss_cnt); ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, (unsigned long) p - page); free_and_exit: free_page(page); return ret; } /* Sysfs histogram file read handler. * * This function is called when the 'histogram' file is opened for reading * It prints the following histogram information - * - Number of histogram samples * - Receive packet number of each rx_rate * - Receive packet number of each snr * - Receive packet number of each nosie_flr * - Receive packet number of each signal streath */ static ssize_t mwifiex_histogram_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (struct mwifiex_private *)file->private_data; ssize_t ret; struct mwifiex_histogram_data *phist_data; int i, value; unsigned long page = get_zeroed_page(GFP_KERNEL); char *p = (char *)page; if (!p) return -ENOMEM; if (!priv || !priv->hist_data) { ret = -EFAULT; goto free_and_exit; } phist_data = priv->hist_data; p += sprintf(p, "\n" "total samples = %d\n", atomic_read(&phist_data->num_samples)); p += sprintf(p, "rx rates (in Mbps): 0=1M 1=2M 2=5.5M 3=11M 4=6M 5=9M 6=12M\n" "7=18M 8=24M 9=36M 10=48M 11=54M 12-27=MCS0-15(BW20) 28-43=MCS0-15(BW40)\n"); if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) { p += sprintf(p, "44-53=MCS0-9(VHT:BW20) 54-63=MCS0-9(VHT:BW40) 64-73=MCS0-9(VHT:BW80)\n\n"); } else { p += sprintf(p, "\n"); } for (i = 0; i < MWIFIEX_MAX_RX_RATES; i++) { value = atomic_read(&phist_data->rx_rate[i]); if (value) p += sprintf(p, "rx_rate[%02d] = %d\n", i, value); } if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) { for (i = MWIFIEX_MAX_RX_RATES; i < MWIFIEX_MAX_AC_RX_RATES; i++) { value = atomic_read(&phist_data->rx_rate[i]); if (value) p += sprintf(p, "rx_rate[%02d] = %d\n", i, value); } } for (i = 0; i < MWIFIEX_MAX_SNR; i++) { value = atomic_read(&phist_data->snr[i]); if (value) p += sprintf(p, "snr[%02ddB] = %d\n", i, value); } for (i = 0; i < MWIFIEX_MAX_NOISE_FLR; i++) { value = atomic_read(&phist_data->noise_flr[i]); if (value) p += sprintf(p, "noise_flr[%02ddBm] = %d\n", (int)(i-128), value); } for (i = 0; i < MWIFIEX_MAX_SIG_STRENGTH; i++) { value = atomic_read(&phist_data->sig_str[i]); if (value) p += sprintf(p, "sig_strength[-%02ddBm] = %d\n", i, value); } ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page, (unsigned long)p - page); free_and_exit: free_page(page); return ret; } static ssize_t mwifiex_histogram_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (void *)file->private_data; if (priv && priv->hist_data) mwifiex_hist_data_reset(priv); return 0; } static struct mwifiex_debug_info info; /* * Proc debug file read handler. * * This function is called when the 'debug' file is opened for reading * It prints the following log information - * - Interrupt count * - WMM AC VO packets count * - WMM AC VI packets count * - WMM AC BE packets count * - WMM AC BK packets count * - Maximum Tx buffer size * - Tx buffer size * - Current Tx buffer size * - Power Save mode * - Power Save state * - Deep Sleep status * - Device wakeup required status * - Number of wakeup tries * - Host Sleep configured status * - Host Sleep activated status * - Number of Tx timeouts * - Number of command timeouts * - Last timed out command ID * - Last timed out command action * - Last command ID * - Last command action * - Last command index * - Last command response ID * - Last command response index * - Last event * - Last event index * - Number of host to card command failures * - Number of sleep confirm command failures * - Number of host to card data failure * - Number of deauthentication events * - Number of disassociation events * - Number of link lost events * - Number of deauthentication commands * - Number of association success commands * - Number of association failure commands * - Number of commands sent * - Number of data packets sent * - Number of command responses received * - Number of events received * - Tx BA stream table (TID, RA) * - Rx reorder table (TID, TA, Start window, Window size, Buffer) */ static ssize_t mwifiex_debug_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (struct mwifiex_private *) file->private_data; unsigned long page = get_zeroed_page(GFP_KERNEL); char *p = (char *) page; ssize_t ret; if (!p) return -ENOMEM; ret = mwifiex_get_debug_info(priv, &info); if (ret) goto free_and_exit; p += mwifiex_debug_info_to_buffer(priv, p, &info); ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page, (unsigned long) p - page); free_and_exit: free_page(page); return ret; } static u32 saved_reg_type, saved_reg_offset, saved_reg_value; /* * Proc regrdwr file write handler. * * This function is called when the 'regrdwr' file is opened for writing * * This function can be used to write to a register. */ static ssize_t mwifiex_regrdwr_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { char *buf; int ret; u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX; buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); if (IS_ERR(buf)) return PTR_ERR(buf); if (sscanf(buf, "%u %x %x", ®_type, ®_offset, ®_value) != 3) { ret = -EINVAL; goto done; } if (reg_type == 0 || reg_offset == 0) { ret = -EINVAL; goto done; } else { saved_reg_type = reg_type; saved_reg_offset = reg_offset; saved_reg_value = reg_value; ret = count; } done: kfree(buf); return ret; } /* * Proc regrdwr file read handler. * * This function is called when the 'regrdwr' file is opened for reading * * This function can be used to read from a register. */ static ssize_t mwifiex_regrdwr_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (struct mwifiex_private *) file->private_data; unsigned long addr = get_zeroed_page(GFP_KERNEL); char *buf = (char *) addr; int pos = 0, ret = 0; u32 reg_value; if (!buf) return -ENOMEM; if (!saved_reg_type) { /* No command has been given */ pos += snprintf(buf, PAGE_SIZE, "0"); goto done; } /* Set command has been given */ if (saved_reg_value != UINT_MAX) { ret = mwifiex_reg_write(priv, saved_reg_type, saved_reg_offset, saved_reg_value); pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type, saved_reg_offset, saved_reg_value); ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); goto done; } /* Get command has been given */ ret = mwifiex_reg_read(priv, saved_reg_type, saved_reg_offset, ®_value); if (ret) { ret = -EINVAL; goto done; } pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type, saved_reg_offset, reg_value); ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); done: free_page(addr); return ret; } /* Proc debug_mask file read handler. * This function is called when the 'debug_mask' file is opened for reading * This function can be used read driver debugging mask value. */ static ssize_t mwifiex_debug_mask_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (struct mwifiex_private *)file->private_data; unsigned long page = get_zeroed_page(GFP_KERNEL); char *buf = (char *)page; size_t ret = 0; int pos = 0; if (!buf) return -ENOMEM; pos += snprintf(buf, PAGE_SIZE, "debug mask=0x%08x\n", priv->adapter->debug_mask); ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); free_page(page); return ret; } /* Proc debug_mask file read handler. * This function is called when the 'debug_mask' file is opened for reading * This function can be used read driver debugging mask value. */ static ssize_t mwifiex_debug_mask_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { int ret; unsigned long debug_mask; struct mwifiex_private *priv = (void *)file->private_data; char *buf; buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); if (IS_ERR(buf)) return PTR_ERR(buf); if (kstrtoul(buf, 0, &debug_mask)) { ret = -EINVAL; goto done; } priv->adapter->debug_mask = debug_mask; ret = count; done: kfree(buf); return ret; } /* debugfs verext file write handler. * This function is called when the 'verext' file is opened for write */ static ssize_t mwifiex_verext_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { int ret; u32 versionstrsel; struct mwifiex_private *priv = (void *)file->private_data; ret = kstrtou32_from_user(ubuf, count, 10, &versionstrsel); if (ret) return ret; priv->versionstrsel = versionstrsel; return count; } /* Proc verext file read handler. * This function is called when the 'verext' file is opened for reading * This function can be used read driver exteneed verion string. */ static ssize_t mwifiex_verext_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (struct mwifiex_private *)file->private_data; char buf[256]; int ret; mwifiex_get_ver_ext(priv, priv->versionstrsel); ret = snprintf(buf, sizeof(buf), "version string: %s\n", priv->version_str); return simple_read_from_buffer(ubuf, count, ppos, buf, ret); } /* Proc memrw file write handler. * This function is called when the 'memrw' file is opened for writing * This function can be used to write to a memory location. */ static ssize_t mwifiex_memrw_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { int ret; char cmd; struct mwifiex_ds_mem_rw mem_rw; u16 cmd_action; struct mwifiex_private *priv = (void *)file->private_data; char *buf; buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); if (IS_ERR(buf)) return PTR_ERR(buf); ret = sscanf(buf, "%c %x %x", &cmd, &mem_rw.addr, &mem_rw.value); if (ret != 3) { ret = -EINVAL; goto done; } if ((cmd == 'r') || (cmd == 'R')) { cmd_action = HostCmd_ACT_GEN_GET; mem_rw.value = 0; } else if ((cmd == 'w') || (cmd == 'W')) { cmd_action = HostCmd_ACT_GEN_SET; } else { ret = -EINVAL; goto done; } memcpy(&priv->mem_rw, &mem_rw, sizeof(mem_rw)); if (mwifiex_send_cmd(priv, HostCmd_CMD_MEM_ACCESS, cmd_action, 0, &mem_rw, true)) ret = -1; else ret = count; done: kfree(buf); return ret; } /* Proc memrw file read handler. * This function is called when the 'memrw' file is opened for reading * This function can be used to read from a memory location. */ static ssize_t mwifiex_memrw_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (void *)file->private_data; unsigned long addr = get_zeroed_page(GFP_KERNEL); char *buf = (char *)addr; int ret, pos = 0; if (!buf) return -ENOMEM; pos += snprintf(buf, PAGE_SIZE, "0x%x 0x%x\n", priv->mem_rw.addr, priv->mem_rw.value); ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); free_page(addr); return ret; } static u32 saved_offset = -1, saved_bytes = -1; /* * Proc rdeeprom file write handler. * * This function is called when the 'rdeeprom' file is opened for writing * * This function can be used to write to a RDEEPROM location. */ static ssize_t mwifiex_rdeeprom_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { char *buf; int ret = 0; int offset = -1, bytes = -1; buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); if (IS_ERR(buf)) return PTR_ERR(buf); if (sscanf(buf, "%d %d", &offset, &bytes) != 2) { ret = -EINVAL; goto done; } if (offset == -1 || bytes == -1) { ret = -EINVAL; goto done; } else { saved_offset = offset; saved_bytes = bytes; ret = count; } done: kfree(buf); return ret; } /* * Proc rdeeprom read write handler. * * This function is called when the 'rdeeprom' file is opened for reading * * This function can be used to read from a RDEEPROM location. */ static ssize_t mwifiex_rdeeprom_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (struct mwifiex_private *) file->private_data; unsigned long addr = get_zeroed_page(GFP_KERNEL); char *buf = (char *) addr; int pos, ret, i; u8 value[MAX_EEPROM_DATA]; if (!buf) return -ENOMEM; if (saved_offset == -1) { /* No command has been given */ pos = snprintf(buf, PAGE_SIZE, "0"); goto done; } /* Get command has been given */ ret = mwifiex_eeprom_read(priv, (u16) saved_offset, (u16) saved_bytes, value); if (ret) { ret = -EINVAL; goto out_free; } pos = snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes); for (i = 0; i < saved_bytes; i++) pos += scnprintf(buf + pos, PAGE_SIZE - pos, "%d ", value[i]); done: ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); out_free: free_page(addr); return ret; } /* Proc hscfg file write handler * This function can be used to configure the host sleep parameters. */ static ssize_t mwifiex_hscfg_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (void *)file->private_data; char *buf; int ret, arg_num; struct mwifiex_ds_hs_cfg hscfg; int conditions = HS_CFG_COND_DEF; u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF; buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1))); if (IS_ERR(buf)) return PTR_ERR(buf); arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap); memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg)); if (arg_num > 3) { mwifiex_dbg(priv->adapter, ERROR, "Too many arguments\n"); ret = -EINVAL; goto done; } if (arg_num >= 1 && arg_num < 3) mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, &hscfg); if (arg_num) { if (conditions == HS_CFG_CANCEL) { mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD); ret = count; goto done; } hscfg.conditions = conditions; } if (arg_num >= 2) hscfg.gpio = gpio; if (arg_num == 3) hscfg.gap = gap; hscfg.is_invoke_hostcmd = false; mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD, &hscfg); mwifiex_enable_hs(priv->adapter); clear_bit(MWIFIEX_IS_HS_ENABLING, &priv->adapter->work_flags); ret = count; done: kfree(buf); return ret; } /* Proc hscfg file read handler * This function can be used to read host sleep configuration * parameters from driver. */ static ssize_t mwifiex_hscfg_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (void *)file->private_data; unsigned long addr = get_zeroed_page(GFP_KERNEL); char *buf = (char *)addr; int pos, ret; struct mwifiex_ds_hs_cfg hscfg; if (!buf) return -ENOMEM; mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, &hscfg); pos = snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", hscfg.conditions, hscfg.gpio, hscfg.gap); ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos); free_page(addr); return ret; } static ssize_t mwifiex_timeshare_coex_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = file->private_data; char buf[3]; bool timeshare_coex; int ret; unsigned int len; if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15) return -EOPNOTSUPP; ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX, HostCmd_ACT_GEN_GET, 0, ×hare_coex, true); if (ret) return ret; len = sprintf(buf, "%d\n", timeshare_coex); return simple_read_from_buffer(ubuf, count, ppos, buf, len); } static ssize_t mwifiex_timeshare_coex_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { bool timeshare_coex; struct mwifiex_private *priv = file->private_data; int ret; if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15) return -EOPNOTSUPP; ret = kstrtobool_from_user(ubuf, count, ×hare_coex); if (ret) return ret; ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX, HostCmd_ACT_GEN_SET, 0, ×hare_coex, true); if (ret) return ret; else return count; } static ssize_t mwifiex_reset_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = file->private_data; struct mwifiex_adapter *adapter = priv->adapter; bool result; int rc; rc = kstrtobool_from_user(ubuf, count, &result); if (rc) return rc; if (!result) return -EINVAL; if (adapter->if_ops.card_reset) { dev_info(adapter->dev, "Resetting per request\n"); adapter->if_ops.card_reset(adapter); } return count; } #define MWIFIEX_DFS_ADD_FILE(name) do { \ debugfs_create_file(#name, 0644, priv->dfs_dev_dir, priv, \ &mwifiex_dfs_##name##_fops); \ } while (0); #define MWIFIEX_DFS_FILE_OPS(name) \ static const struct file_operations mwifiex_dfs_##name##_fops = { \ .read = mwifiex_##name##_read, \ .write = mwifiex_##name##_write, \ .open = simple_open, \ }; #define MWIFIEX_DFS_FILE_READ_OPS(name) \ static const struct file_operations mwifiex_dfs_##name##_fops = { \ .read = mwifiex_##name##_read, \ .open = simple_open, \ }; #define MWIFIEX_DFS_FILE_WRITE_OPS(name) \ static const struct file_operations mwifiex_dfs_##name##_fops = { \ .write = mwifiex_##name##_write, \ .open = simple_open, \ }; MWIFIEX_DFS_FILE_READ_OPS(info); MWIFIEX_DFS_FILE_READ_OPS(debug); MWIFIEX_DFS_FILE_READ_OPS(getlog); MWIFIEX_DFS_FILE_OPS(regrdwr); MWIFIEX_DFS_FILE_OPS(rdeeprom); MWIFIEX_DFS_FILE_OPS(memrw); MWIFIEX_DFS_FILE_OPS(hscfg); MWIFIEX_DFS_FILE_OPS(histogram); MWIFIEX_DFS_FILE_OPS(debug_mask); MWIFIEX_DFS_FILE_OPS(timeshare_coex); MWIFIEX_DFS_FILE_WRITE_OPS(reset); MWIFIEX_DFS_FILE_OPS(verext); /* * This function creates the debug FS directory structure and the files. */ void mwifiex_dev_debugfs_init(struct mwifiex_private *priv) { if (!mwifiex_dfs_dir || !priv) return; priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name, mwifiex_dfs_dir); MWIFIEX_DFS_ADD_FILE(info); MWIFIEX_DFS_ADD_FILE(debug); MWIFIEX_DFS_ADD_FILE(getlog); MWIFIEX_DFS_ADD_FILE(regrdwr); MWIFIEX_DFS_ADD_FILE(rdeeprom); MWIFIEX_DFS_ADD_FILE(memrw); MWIFIEX_DFS_ADD_FILE(hscfg); MWIFIEX_DFS_ADD_FILE(histogram); MWIFIEX_DFS_ADD_FILE(debug_mask); MWIFIEX_DFS_ADD_FILE(timeshare_coex); MWIFIEX_DFS_ADD_FILE(reset); MWIFIEX_DFS_ADD_FILE(verext); } /* * This function removes the debug FS directory structure and the files. */ void mwifiex_dev_debugfs_remove(struct mwifiex_private *priv) { if (!priv) return; debugfs_remove_recursive(priv->dfs_dev_dir); } /* * This function creates the top level proc directory. */ void mwifiex_debugfs_init(void) { if (!mwifiex_dfs_dir) mwifiex_dfs_dir = debugfs_create_dir("mwifiex", NULL); } /* * This function removes the top level proc directory. */ void mwifiex_debugfs_remove(void) { debugfs_remove(mwifiex_dfs_dir); }