Oleksij Rempel | f2c3c95 | 2014-05-11 10:04:31 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2008-2011 Atheros Communications Inc. |
| 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
| 16 | |
| 17 | #include "common.h" |
| 18 | |
| 19 | static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf, |
| 20 | size_t count, loff_t *ppos) |
| 21 | { |
| 22 | struct ath_hw *ah = file->private_data; |
| 23 | u32 len = 0, size = 6000; |
| 24 | char *buf; |
| 25 | size_t retval; |
| 26 | |
| 27 | buf = kzalloc(size, GFP_KERNEL); |
| 28 | if (buf == NULL) |
| 29 | return -ENOMEM; |
| 30 | |
| 31 | len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size); |
| 32 | |
| 33 | retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| 34 | kfree(buf); |
| 35 | |
| 36 | return retval; |
| 37 | } |
| 38 | |
| 39 | static const struct file_operations fops_modal_eeprom = { |
| 40 | .read = read_file_modal_eeprom, |
| 41 | .open = simple_open, |
| 42 | .owner = THIS_MODULE, |
| 43 | .llseek = default_llseek, |
| 44 | }; |
| 45 | |
| 46 | |
| 47 | void ath9k_cmn_debug_modal_eeprom(struct dentry *debugfs_phy, |
| 48 | struct ath_hw *ah) |
| 49 | { |
| 50 | debugfs_create_file("modal_eeprom", S_IRUSR, debugfs_phy, ah, |
| 51 | &fops_modal_eeprom); |
| 52 | } |
| 53 | EXPORT_SYMBOL(ath9k_cmn_debug_modal_eeprom); |