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", 0400, debugfs_phy, ah,
51 			    &fops_modal_eeprom);
52 }
53 EXPORT_SYMBOL(ath9k_cmn_debug_modal_eeprom);
54 
55 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
56 				     size_t count, loff_t *ppos)
57 {
58 	struct ath_hw *ah = file->private_data;
59 	u32 len = 0, size = 1500;
60 	ssize_t retval = 0;
61 	char *buf;
62 
63 	buf = kzalloc(size, GFP_KERNEL);
64 	if (!buf)
65 		return -ENOMEM;
66 
67 	len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
68 
69 	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
70 	kfree(buf);
71 
72 	return retval;
73 }
74 
75 static const struct file_operations fops_base_eeprom = {
76 	.read = read_file_base_eeprom,
77 	.open = simple_open,
78 	.owner = THIS_MODULE,
79 	.llseek = default_llseek,
80 };
81 
82 void ath9k_cmn_debug_base_eeprom(struct dentry *debugfs_phy,
83 				 struct ath_hw *ah)
84 {
85 	debugfs_create_file("base_eeprom", 0400, debugfs_phy, ah,
86 			    &fops_base_eeprom);
87 }
88 EXPORT_SYMBOL(ath9k_cmn_debug_base_eeprom);
89 
90 void ath9k_cmn_debug_stat_rx(struct ath_rx_stats *rxstats,
91 			     struct ath_rx_status *rs)
92 {
93 #define RX_PHY_ERR_INC(c) rxstats->phy_err_stats[c]++
94 #define RX_CMN_STAT_INC(c) (rxstats->c++)
95 
96 	RX_CMN_STAT_INC(rx_pkts_all);
97 	rxstats->rx_bytes_all += rs->rs_datalen;
98 
99 	if (rs->rs_status & ATH9K_RXERR_CRC)
100 		RX_CMN_STAT_INC(crc_err);
101 	if (rs->rs_status & ATH9K_RXERR_DECRYPT)
102 		RX_CMN_STAT_INC(decrypt_crc_err);
103 	if (rs->rs_status & ATH9K_RXERR_MIC)
104 		RX_CMN_STAT_INC(mic_err);
105 	if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
106 		RX_CMN_STAT_INC(pre_delim_crc_err);
107 	if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
108 		RX_CMN_STAT_INC(post_delim_crc_err);
109 	if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
110 		RX_CMN_STAT_INC(decrypt_busy_err);
111 
112 	if (rs->rs_status & ATH9K_RXERR_PHY) {
113 		RX_CMN_STAT_INC(phy_err);
114 		if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
115 			RX_PHY_ERR_INC(rs->rs_phyerr);
116 	}
117 
118 #undef RX_CMN_STAT_INC
119 #undef RX_PHY_ERR_INC
120 }
121 EXPORT_SYMBOL(ath9k_cmn_debug_stat_rx);
122 
123 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
124 			      size_t count, loff_t *ppos)
125 {
126 #define RXS_ERR(s, e)					\
127 	do {						\
128 		len += scnprintf(buf + len, size - len,	\
129 				 "%18s : %10u\n", s,	\
130 				 rxstats->e);		\
131 	} while (0)
132 
133 	struct ath_rx_stats *rxstats = file->private_data;
134 	char *buf;
135 	unsigned int len = 0, size = 1600;
136 	ssize_t retval = 0;
137 
138 	buf = kzalloc(size, GFP_KERNEL);
139 	if (buf == NULL)
140 		return -ENOMEM;
141 
142 	RXS_ERR("PKTS-ALL", rx_pkts_all);
143 	RXS_ERR("BYTES-ALL", rx_bytes_all);
144 	RXS_ERR("BEACONS", rx_beacons);
145 	RXS_ERR("FRAGS", rx_frags);
146 	RXS_ERR("SPECTRAL", rx_spectral);
147 	RXS_ERR("SPECTRAL SMPL GOOD", rx_spectral_sample_good);
148 	RXS_ERR("SPECTRAL SMPL ERR", rx_spectral_sample_err);
149 
150 	RXS_ERR("CRC ERR", crc_err);
151 	RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
152 	RXS_ERR("PHY ERR", phy_err);
153 	RXS_ERR("MIC ERR", mic_err);
154 	RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
155 	RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
156 	RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
157 	RXS_ERR("LENGTH-ERR", rx_len_err);
158 	RXS_ERR("OOM-ERR", rx_oom_err);
159 	RXS_ERR("RATE-ERR", rx_rate_err);
160 	RXS_ERR("TOO-MANY-FRAGS", rx_too_many_frags_err);
161 
162 	if (len > size)
163 		len = size;
164 
165 	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
166 	kfree(buf);
167 
168 	return retval;
169 
170 #undef RXS_ERR
171 }
172 
173 static const struct file_operations fops_recv = {
174 	.read = read_file_recv,
175 	.open = simple_open,
176 	.owner = THIS_MODULE,
177 	.llseek = default_llseek,
178 };
179 
180 void ath9k_cmn_debug_recv(struct dentry *debugfs_phy,
181 			  struct ath_rx_stats *rxstats)
182 {
183 	debugfs_create_file("recv", 0400, debugfs_phy, rxstats, &fops_recv);
184 }
185 EXPORT_SYMBOL(ath9k_cmn_debug_recv);
186 
187 static ssize_t read_file_phy_err(struct file *file, char __user *user_buf,
188 				 size_t count, loff_t *ppos)
189 {
190 #define PHY_ERR(s, p) \
191 	len += scnprintf(buf + len, size - len, "%22s : %10u\n", s, \
192 			 rxstats->phy_err_stats[p]);
193 
194 	struct ath_rx_stats *rxstats = file->private_data;
195 	char *buf;
196 	unsigned int len = 0, size = 1600;
197 	ssize_t retval = 0;
198 
199 	buf = kzalloc(size, GFP_KERNEL);
200 	if (buf == NULL)
201 		return -ENOMEM;
202 
203 	PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
204 	PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
205 	PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
206 	PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
207 	PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
208 	PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
209 	PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
210 	PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
211 
212 	PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
213 	PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
214 	PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
215 	PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
216 	PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
217 	PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
218 	PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
219 
220 	PHY_ERR("CCK-BLOCKER ERR", ATH9K_PHYERR_CCK_BLOCKER);
221 	PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
222 	PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
223 	PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
224 	PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
225 	PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
226 	PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
227 	PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
228 
229 	PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
230 	PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
231 	PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
232 	PHY_ERR("HT-ZLF ERR", ATH9K_PHYERR_HT_ZLF);
233 
234 	PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
235 	PHY_ERR("GREEN-FIELD ERR", ATH9K_PHYERR_GREEN_FIELD);
236 	PHY_ERR("SPECTRAL ERR", ATH9K_PHYERR_SPECTRAL);
237 
238 	if (len > size)
239 		len = size;
240 
241 	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
242 	kfree(buf);
243 
244 	return retval;
245 
246 #undef PHY_ERR
247 }
248 
249 static const struct file_operations fops_phy_err = {
250 	.read = read_file_phy_err,
251 	.open = simple_open,
252 	.owner = THIS_MODULE,
253 	.llseek = default_llseek,
254 };
255 
256 void ath9k_cmn_debug_phy_err(struct dentry *debugfs_phy,
257 			     struct ath_rx_stats *rxstats)
258 {
259 	debugfs_create_file("phy_err", 0400, debugfs_phy, rxstats,
260 			    &fops_phy_err);
261 }
262 EXPORT_SYMBOL(ath9k_cmn_debug_phy_err);
263