wl1251: NVS dump/load hacks

[pandora-kernel.git] / drivers / net / wireless / wl1251 / debugfs.c

diff --git a/drivers/net/wireless/wl1251/debugfs.c b/drivers/net/wireless/wl1251/debugfs.c
index 6c27400..66d75e3 100644 (file)
--- a/drivers/net/wireless/wl1251/debugfs.c
+++ b/drivers/net/wireless/wl1251/debugfs.c
@@ -261,6 +261,42 @@ static const struct file_operations tx_queue_status_ops = {
        .llseek = generic_file_llseek,
 };
 
+static ssize_t dump_nvs_read(struct file *file, char __user *userbuf,
+                            size_t count, loff_t *ppos)
+{
+       struct wl1251 *wl = file->private_data;
+
+       if (wl->eeprom_dump == NULL)
+               return -EINVAL;
+
+       return simple_read_from_buffer(userbuf, count, ppos,
+               wl->eeprom_dump, 752);
+}
+
+static ssize_t dump_full_read(struct file *file, char __user *userbuf,
+                             size_t count, loff_t *ppos)
+{
+       struct wl1251 *wl = file->private_data;
+
+       if (wl->eeprom_dump == NULL)
+               return -EINVAL;
+
+       return simple_read_from_buffer(userbuf, count, ppos,
+               wl->eeprom_dump, 1024);
+}
+
+static const struct file_operations dump_nvs_ops = {
+       .read = dump_nvs_read,
+       .open = wl1251_open_file_generic,
+       .llseek = generic_file_llseek,
+};
+
+static const struct file_operations dump_full_ops = {
+       .read = dump_full_read,
+       .open = wl1251_open_file_generic,
+       .llseek = generic_file_llseek,
+};
+
 static void wl1251_debugfs_delete_files(struct wl1251 *wl)
 {
        DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);
@@ -358,6 +394,11 @@ static void wl1251_debugfs_delete_files(struct wl1251 *wl)
        DEBUGFS_DEL(tx_queue_status);
        DEBUGFS_DEL(retry_count);
        DEBUGFS_DEL(excessive_retries);
+
+       if (wl->eeprom_dump != NULL) {
+               DEBUGFS_DEL(dump_nvs);
+               DEBUGFS_DEL(dump_full);
+       }
 }
 
 static int wl1251_debugfs_add_files(struct wl1251 *wl)
@@ -460,6 +501,12 @@ static int wl1251_debugfs_add_files(struct wl1251 *wl)
        DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
        DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
 
+       /* temporary (?) hack for EEPROM dumping */
+       if (wl->eeprom_dump != NULL) {
+               DEBUGFS_ADD(dump_nvs, wl->debugfs.rootdir);
+               DEBUGFS_ADD(dump_full, wl->debugfs.rootdir);
+       }
+
 out:
        if (ret < 0)
                wl1251_debugfs_delete_files(wl);