ath9k: Dump modal eeprom header

Debugfs file location:
<debugfs_mnt>/ieee80211/phy#/ath9k/modal_eeprom

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index cdd370c..9bec3b8 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -1191,6 +1191,34 @@ static const struct file_operations fops_base_eeprom = {
        .llseek = default_llseek,
 };
 
+static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
+                                     size_t count, loff_t *ppos)
+{
+       struct ath_softc *sc = file->private_data;
+       struct ath_hw *ah = sc->sc_ah;
+       u32 len = 0, size = 6000;
+       char *buf;
+       size_t retval;
+
+       buf = kzalloc(size, GFP_KERNEL);
+       if (buf == NULL)
+               return -ENOMEM;
+
+       len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
+
+       retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+       kfree(buf);
+
+       return retval;
+}
+
+static const struct file_operations fops_modal_eeprom = {
+       .read = read_file_modal_eeprom,
+       .open = ath9k_debugfs_open,
+       .owner = THIS_MODULE,
+       .llseek = default_llseek,
+};
+
 int ath9k_init_debug(struct ath_hw *ah)
 {
        struct ath_common *common = ath9k_hw_common(ah);
@@ -1236,6 +1264,8 @@ int ath9k_init_debug(struct ath_hw *ah)
                            &fops_regdump);
        debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
                            &fops_base_eeprom);
+       debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
+                           &fops_modal_eeprom);
 
        debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
                           sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);