1 files changed, 144 insertions, 49 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 64eb585f1578..11e08c068917 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -172,7 +172,6 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file,
         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
         const size_t bufsz = sizeof(buf);
 
-        iwl_grab_nic_access(priv);
         for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
                 val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \
                                         priv->dbgfs->sram_len - i);
@@ -192,7 +191,6 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file,
                 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
         }
         pos += scnprintf(buf + pos, bufsz - pos, "\n");
-        iwl_release_nic_access(priv);
 
         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
         return ret;
@@ -292,7 +290,7 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
         return ret;
 }
 
-static ssize_t iwl_dbgfs_eeprom_read(struct file *file,
+static ssize_t iwl_dbgfs_nvm_read(struct file *file,
                                        char __user *user_buf,
                                        size_t count,
                                        loff_t *ppos)
@@ -306,7 +304,7 @@ static ssize_t iwl_dbgfs_eeprom_read(struct file *file,
         buf_size = 4 * eeprom_len + 256;
 
         if (eeprom_len % 16) {
-                IWL_ERR(priv, "EEPROM size is not multiple of 16.\n");
+                IWL_ERR(priv, "NVM size is not multiple of 16.\n");
                 return -ENODATA;
         }
 
@@ -318,6 +316,13 @@ static ssize_t iwl_dbgfs_eeprom_read(struct file *file,
         }
 
         ptr = priv->eeprom;
+        if (!ptr) {
+                IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
+                return -ENOMEM;
+        }
+        pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s\n",
+                        (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
+                        ? "OTP" : "EEPROM");
         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
@@ -375,51 +380,53 @@ static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
         }
 
         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
-        channels = supp_band->channels;
-
-        pos += scnprintf(buf + pos, bufsz - pos,
-                        "Displaying %d channels in 2.4GHz band 802.11bg):\n",
-                         supp_band->n_channels);
+        if (supp_band) {
+                channels = supp_band->channels;
 
-        for (i = 0; i < supp_band->n_channels; i++)
                 pos += scnprintf(buf + pos, bufsz - pos,
-                                "%d: %ddBm: BSS%s%s, %s.\n",
-                                ieee80211_frequency_to_channel(
-                                channels[i].center_freq),
-                                channels[i].max_power,
-                                channels[i].flags & IEEE80211_CHAN_RADAR ?
-                                " (IEEE 802.11h required)" : "",
-                                (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS)
-                                || (channels[i].flags &
-                                IEEE80211_CHAN_RADAR)) ? "" :
-                                ", IBSS",
-                                channels[i].flags &
-                                IEEE80211_CHAN_PASSIVE_SCAN ?
-                                "passive only" : "active/passive");
+                                "Displaying %d channels in 2.4GHz band 802.11bg):\n",
+                                supp_band->n_channels);
 
+                for (i = 0; i < supp_band->n_channels; i++)
+                        pos += scnprintf(buf + pos, bufsz - pos,
+                                        "%d: %ddBm: BSS%s%s, %s.\n",
+                                        ieee80211_frequency_to_channel(
+                                        channels[i].center_freq),
+                                        channels[i].max_power,
+                                        channels[i].flags & IEEE80211_CHAN_RADAR ?
+                                        " (IEEE 802.11h required)" : "",
+                                        ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+                                        || (channels[i].flags &
+                                        IEEE80211_CHAN_RADAR)) ? "" :
+                                        ", IBSS",
+                                        channels[i].flags &
+                                        IEEE80211_CHAN_PASSIVE_SCAN ?
+                                        "passive only" : "active/passive");
+        }
         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
-        channels = supp_band->channels;
-
-        pos += scnprintf(buf + pos, bufsz - pos,
-                        "Displaying %d channels in 5.2GHz band (802.11a)\n",
-                        supp_band->n_channels);
+        if (supp_band) {
+                channels = supp_band->channels;
 
-        for (i = 0; i < supp_band->n_channels; i++)
                 pos += scnprintf(buf + pos, bufsz - pos,
-                                "%d: %ddBm: BSS%s%s, %s.\n",
-                                ieee80211_frequency_to_channel(
-                                channels[i].center_freq),
-                                channels[i].max_power,
-                                channels[i].flags & IEEE80211_CHAN_RADAR ?
-                                " (IEEE 802.11h required)" : "",
-                                ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
-                                || (channels[i].flags &
-                                IEEE80211_CHAN_RADAR)) ? "" :
-                                ", IBSS",
-                                channels[i].flags &
-                                IEEE80211_CHAN_PASSIVE_SCAN ?
-                                "passive only" : "active/passive");
+                                "Displaying %d channels in 5.2GHz band (802.11a)\n",
+                                supp_band->n_channels);
 
+                for (i = 0; i < supp_band->n_channels; i++)
+                        pos += scnprintf(buf + pos, bufsz - pos,
+                                        "%d: %ddBm: BSS%s%s, %s.\n",
+                                        ieee80211_frequency_to_channel(
+                                        channels[i].center_freq),
+                                        channels[i].max_power,
+                                        channels[i].flags & IEEE80211_CHAN_RADAR ?
+                                        " (IEEE 802.11h required)" : "",
+                                        ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+                                        || (channels[i].flags &
+                                        IEEE80211_CHAN_RADAR)) ? "" :
+                                        ", IBSS",
+                                        channels[i].flags &
+                                        IEEE80211_CHAN_PASSIVE_SCAN ?
+                                        "passive only" : "active/passive");
+        }
         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
         kfree(buf);
         return ret;
@@ -442,8 +449,6 @@ static ssize_t iwl_dbgfs_status_read(struct file *file,
                 test_bit(STATUS_INT_ENABLED, &priv->status));
         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
                 test_bit(STATUS_RF_KILL_HW, &priv->status));
-        pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_SW:\t %d\n",
-                test_bit(STATUS_RF_KILL_SW, &priv->status));
         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
                 test_bit(STATUS_INIT, &priv->status));
         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
@@ -456,8 +461,6 @@ static ssize_t iwl_dbgfs_status_read(struct file *file,
                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
                 test_bit(STATUS_EXIT_PENDING, &priv->status));
-        pos += scnprintf(buf + pos, bufsz - pos, "STATUS_IN_SUSPEND:\t %d\n",
-                test_bit(STATUS_IN_SUSPEND, &priv->status));
         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
                 test_bit(STATUS_STATISTICS, &priv->status));
         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
@@ -475,14 +478,104 @@ static ssize_t iwl_dbgfs_status_read(struct file *file,
         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
+static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
+                                        char __user *user_buf,
+                                        size_t count, loff_t *ppos) {
+
+        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        int pos = 0;
+        int cnt = 0;
+        char *buf;
+        int bufsz = 24 * 64; /* 24 items * 64 char per item */
+        ssize_t ret;
+
+        buf = kzalloc(bufsz, GFP_KERNEL);
+        if (!buf) {
+                IWL_ERR(priv, "Can not allocate Buffer\n");
+                return -ENOMEM;
+        }
+
+        pos += scnprintf(buf + pos, bufsz - pos,
+                        "Interrupt Statistics Report:\n");
+
+        pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
+                priv->isr_stats.hw);
+        pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
+                priv->isr_stats.sw);
+        if (priv->isr_stats.sw > 0) {
+                pos += scnprintf(buf + pos, bufsz - pos,
+                        "\tLast Restarting Code:  0x%X\n",
+                        priv->isr_stats.sw_err);
+        }
+#ifdef CONFIG_IWLWIFI_DEBUG
+        pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
+                priv->isr_stats.sch);
+        pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
+                priv->isr_stats.alive);
+#endif
+        pos += scnprintf(buf + pos, bufsz - pos,
+                "HW RF KILL switch toggled:\t %u\n",
+                priv->isr_stats.rfkill);
+
+        pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
+                priv->isr_stats.ctkill);
+
+        pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
+                priv->isr_stats.wakeup);
+
+        pos += scnprintf(buf + pos, bufsz - pos,
+                "Rx command responses:\t\t %u\n",
+                priv->isr_stats.rx);
+        for (cnt = 0; cnt < REPLY_MAX; cnt++) {
+                if (priv->isr_stats.rx_handlers[cnt] > 0)
+                        pos += scnprintf(buf + pos, bufsz - pos,
+                                "\tRx handler[%36s]:\t\t %u\n",
+                                get_cmd_string(cnt),
+                                priv->isr_stats.rx_handlers[cnt]);
+        }
+
+        pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
+                priv->isr_stats.tx);
+
+        pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
+                priv->isr_stats.unhandled);
+
+        ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+        kfree(buf);
+        return ret;
+}
+
+static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
+                                         const char __user *user_buf,
+                                         size_t count, loff_t *ppos)
+{
+        struct iwl_priv *priv = file->private_data;
+        char buf[8];
+        int buf_size;
+        u32 reset_flag;
+
+        memset(buf, 0, sizeof(buf));
+        buf_size = min(count, sizeof(buf) -  1);
+        if (copy_from_user(buf, user_buf, buf_size))
+                return -EFAULT;
+        if (sscanf(buf, "%x", &reset_flag) != 1)
+                return -EFAULT;
+        if (reset_flag == 0)
+                iwl_clear_isr_stats(priv);
+
+        return count;
+}
+
+
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 DEBUGFS_WRITE_FILE_OPS(log_event);
-DEBUGFS_READ_FILE_OPS(eeprom);
+DEBUGFS_READ_FILE_OPS(nvm);
 DEBUGFS_READ_FILE_OPS(stations);
 DEBUGFS_READ_FILE_OPS(rx_statistics);
 DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_FILE_OPS(channels);
 DEBUGFS_READ_FILE_OPS(status);
+DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 
 /*
  * Create the debugfs files and directories
@@ -510,7 +603,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 
         DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
         DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
-        DEBUGFS_ADD_FILE(eeprom, data);
+        DEBUGFS_ADD_FILE(nvm, data);
         DEBUGFS_ADD_FILE(sram, data);
         DEBUGFS_ADD_FILE(log_event, data);
         DEBUGFS_ADD_FILE(stations, data);
@@ -518,6 +611,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
         DEBUGFS_ADD_FILE(tx_statistics, data);
         DEBUGFS_ADD_FILE(channels, data);
         DEBUGFS_ADD_FILE(status, data);
+        DEBUGFS_ADD_FILE(interrupt, data);
         DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
         DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
                          &priv->disable_chain_noise_cal);
@@ -540,7 +634,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
         if (!priv->dbgfs)
                 return;
 
-        DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_eeprom);
+        DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
@@ -548,6 +642,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
+        DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
         DEBUGFS_REMOVE(priv->dbgfs->dir_data);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);