ath9k_htc: Dump base eeprom header for UB91/94/95

Debugfs file location: <debugfs_mnt>/ieee80211/phy#/ath9k_htc/base_eeprom

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
index 894e5ef..cff2d21 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
@@ -492,6 +492,158 @@ static const struct file_operations fops_debug = {
        .llseek = default_llseek,
 };
 
+static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
+                                    size_t count, loff_t *ppos)
+{
+       struct ath9k_htc_priv *priv = file->private_data;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct base_eep_header *pBase = NULL;
+       unsigned int len = 0, size = 1500;
+       ssize_t retval = 0;
+       char *buf;
+
+       /*
+        * This can be done since all the 3 EEPROM families have the
+        * same base header upto a certain point, and we are interested in
+        * the data only upto that point.
+        */
+
+       if (AR_SREV_9271(priv->ah))
+               pBase = (struct base_eep_header *)
+                       &priv->ah->eeprom.map4k.baseEepHeader;
+       else if (priv->ah->hw_version.usbdev == AR9280_USB)
+               pBase = (struct base_eep_header *)
+                       &priv->ah->eeprom.def.baseEepHeader;
+       else if (priv->ah->hw_version.usbdev == AR9287_USB)
+               pBase = (struct base_eep_header *)
+                       &priv->ah->eeprom.map9287.baseEepHeader;
+
+       if (pBase == NULL) {
+               ath_err(common, "Unknown EEPROM type\n");
+               return 0;
+       }
+
+       buf = kzalloc(size, GFP_KERNEL);
+       if (buf == NULL)
+               return -ENOMEM;
+
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n", "Major Version",
+                       pBase->version >> 12);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n", "Minor Version",
+                       pBase->version & 0xFFF);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n", "Checksum",
+                       pBase->checksum);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n", "Length",
+                       pBase->length);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n", "RegDomain1",
+                       pBase->regDmn[0]);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n", "RegDomain2",
+                       pBase->regDmn[1]);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "TX Mask", pBase->txMask);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "RX Mask", pBase->rxMask);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Allow 5GHz",
+                       !!(pBase->opCapFlags & AR5416_OPFLAGS_11A));
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Allow 2GHz",
+                       !!(pBase->opCapFlags & AR5416_OPFLAGS_11G));
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Disable 2GHz HT20",
+                       !!(pBase->opCapFlags & AR5416_OPFLAGS_N_2G_HT20));
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Disable 2GHz HT40",
+                       !!(pBase->opCapFlags & AR5416_OPFLAGS_N_2G_HT40));
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Disable 5Ghz HT20",
+                       !!(pBase->opCapFlags & AR5416_OPFLAGS_N_5G_HT20));
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Disable 5Ghz HT40",
+                       !!(pBase->opCapFlags & AR5416_OPFLAGS_N_5G_HT40));
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Big Endian",
+                       !!(pBase->eepMisc & 0x01));
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Cal Bin Major Ver",
+                       (pBase->binBuildNumber >> 24) & 0xFF);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Cal Bin Minor Ver",
+                       (pBase->binBuildNumber >> 16) & 0xFF);
+       len += snprintf(buf + len, size - len,
+                       "%20s : %10d\n",
+                       "Cal Bin Build",
+                       (pBase->binBuildNumber >> 8) & 0xFF);
+
+       /*
+        * UB91 specific data.
+        */
+       if (AR_SREV_9271(priv->ah)) {
+               struct base_eep_header_4k *pBase4k =
+                       &priv->ah->eeprom.map4k.baseEepHeader;
+
+               len += snprintf(buf + len, size - len,
+                               "%20s : %10d\n",
+                               "TX Gain type",
+                               pBase4k->txGainType);
+       }
+
+       /*
+        * UB95 specific data.
+        */
+       if (priv->ah->hw_version.usbdev == AR9287_USB) {
+               struct base_eep_ar9287_header *pBase9287 =
+                       &priv->ah->eeprom.map9287.baseEepHeader;
+
+               len += snprintf(buf + len, size - len,
+                               "%20s : %10ddB\n",
+                               "Power Table Offset",
+                               pBase9287->pwrTableOffset);
+
+               len += snprintf(buf + len, size - len,
+                               "%20s : %10d\n",
+                               "OpenLoop Power Ctrl",
+                               pBase9287->openLoopPwrCntl);
+       }
+
+       len += snprintf(buf + len, size - len,
+                       "%20s : %02X:%02X:%02X:%02X:%02X:%02X\n",
+                       "MacAddress",
+                       pBase->macAddr[0], pBase->macAddr[1], pBase->macAddr[2],
+                       pBase->macAddr[3], pBase->macAddr[4], pBase->macAddr[5]);
+       if (len > size)
+               len = size;
+
+       retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+       kfree(buf);
+
+       return retval;
+}
+
+static const struct file_operations fops_base_eeprom = {
+       .read = read_file_base_eeprom,
+       .open = ath9k_debugfs_open,
+       .owner = THIS_MODULE,
+       .llseek = default_llseek,
+};
+
 int ath9k_htc_init_debug(struct ath_hw *ah)
 {
        struct ath_common *common = ath9k_hw_common(ah);
@@ -503,21 +655,23 @@ int ath9k_htc_init_debug(struct ath_hw *ah)
                return -ENOMEM;
 
        debugfs_create_file("tgt_int_stats", S_IRUSR, priv->debug.debugfs_phy,
-                               priv, &fops_tgt_int_stats);
+                           priv, &fops_tgt_int_stats);
        debugfs_create_file("tgt_tx_stats", S_IRUSR, priv->debug.debugfs_phy,
-                               priv, &fops_tgt_tx_stats);
+                           priv, &fops_tgt_tx_stats);
        debugfs_create_file("tgt_rx_stats", S_IRUSR, priv->debug.debugfs_phy,
-                               priv, &fops_tgt_rx_stats);
+                           priv, &fops_tgt_rx_stats);
        debugfs_create_file("xmit", S_IRUSR, priv->debug.debugfs_phy,
-                               priv, &fops_xmit);
+                           priv, &fops_xmit);
        debugfs_create_file("recv", S_IRUSR, priv->debug.debugfs_phy,
-                               priv, &fops_recv);
+                           priv, &fops_recv);
        debugfs_create_file("slot", S_IRUSR, priv->debug.debugfs_phy,
-                               priv, &fops_slot);
+                           priv, &fops_slot);
        debugfs_create_file("queue", S_IRUSR, priv->debug.debugfs_phy,
-                               priv, &fops_queue);
+                           priv, &fops_queue);
        debugfs_create_file("debug", S_IRUSR | S_IWUSR, priv->debug.debugfs_phy,
-                               priv, &fops_debug);
+                           priv, &fops_debug);
+       debugfs_create_file("base_eeprom", S_IRUSR, priv->debug.debugfs_phy,
+                           priv, &fops_base_eeprom);
 
        return 0;
 }