common-debug.c

  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 <linux/export.h>
 18#include "common.h"
 19
 20static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
 21				      size_t count, loff_t *ppos)
 22{
 23	struct ath_hw *ah = file->private_data;
 24	u32 len = 0, size = 6000;
 25	char *buf;
 26	size_t retval;
 27
 28	buf = kzalloc(size, GFP_KERNEL);
 29	if (buf == NULL)
 30		return -ENOMEM;
 31
 32	len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
 33
 34	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 35	kfree(buf);
 36
 37	return retval;
 38}
 39
 40static const struct file_operations fops_modal_eeprom = {
 41	.read = read_file_modal_eeprom,
 42	.open = simple_open,
 43	.owner = THIS_MODULE,
 44	.llseek = default_llseek,
 45};
 46
 47
 48void ath9k_cmn_debug_modal_eeprom(struct dentry *debugfs_phy,
 49				  struct ath_hw *ah)
 50{
 51	debugfs_create_file("modal_eeprom", 0400, debugfs_phy, ah,
 52			    &fops_modal_eeprom);
 53}
 54EXPORT_SYMBOL(ath9k_cmn_debug_modal_eeprom);
 55
 56static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
 57				     size_t count, loff_t *ppos)
 58{
 59	struct ath_hw *ah = file->private_data;
 60	u32 len = 0, size = 1500;
 61	ssize_t retval = 0;
 62	char *buf;
 63
 64	buf = kzalloc(size, GFP_KERNEL);
 65	if (!buf)
 66		return -ENOMEM;
 67
 68	len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
 69
 70	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 71	kfree(buf);
 72
 73	return retval;
 74}
 75
 76static const struct file_operations fops_base_eeprom = {
 77	.read = read_file_base_eeprom,
 78	.open = simple_open,
 79	.owner = THIS_MODULE,
 80	.llseek = default_llseek,
 81};
 82
 83void ath9k_cmn_debug_base_eeprom(struct dentry *debugfs_phy,
 84				 struct ath_hw *ah)
 85{
 86	debugfs_create_file("base_eeprom", 0400, debugfs_phy, ah,
 87			    &fops_base_eeprom);
 88}
 89EXPORT_SYMBOL(ath9k_cmn_debug_base_eeprom);
 90
 91void ath9k_cmn_debug_stat_rx(struct ath_rx_stats *rxstats,
 92			     struct ath_rx_status *rs)
 93{
 94#define RX_PHY_ERR_INC(c) rxstats->phy_err_stats[c]++
 95#define RX_CMN_STAT_INC(c) (rxstats->c++)
 96
 97	RX_CMN_STAT_INC(rx_pkts_all);
 98	rxstats->rx_bytes_all += rs->rs_datalen;
 99
100	if (rs->rs_status & ATH9K_RXERR_CRC)
101		RX_CMN_STAT_INC(crc_err);
102	if (rs->rs_status & ATH9K_RXERR_DECRYPT)
103		RX_CMN_STAT_INC(decrypt_crc_err);
104	if (rs->rs_status & ATH9K_RXERR_MIC)
105		RX_CMN_STAT_INC(mic_err);
106	if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
107		RX_CMN_STAT_INC(pre_delim_crc_err);
108	if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
109		RX_CMN_STAT_INC(post_delim_crc_err);
110	if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
111		RX_CMN_STAT_INC(decrypt_busy_err);
112
113	if (rs->rs_status & ATH9K_RXERR_PHY) {
114		RX_CMN_STAT_INC(phy_err);
115		if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
116			RX_PHY_ERR_INC(rs->rs_phyerr);
117	}
118
119#undef RX_CMN_STAT_INC
120#undef RX_PHY_ERR_INC
121}
122EXPORT_SYMBOL(ath9k_cmn_debug_stat_rx);
123
124static ssize_t read_file_recv(struct file *file, char __user *user_buf,
125			      size_t count, loff_t *ppos)
126{
127#define RXS_ERR(s, e)					\
128	do {						\
129		len += scnprintf(buf + len, size - len,	\
130				 "%18s : %10u\n", s,	\
131				 rxstats->e);		\
132	} while (0)
133
134	struct ath_rx_stats *rxstats = file->private_data;
135	char *buf;
136	unsigned int len = 0, size = 1600;
137	ssize_t retval = 0;
138
139	buf = kzalloc(size, GFP_KERNEL);
140	if (buf == NULL)
141		return -ENOMEM;
142
143	RXS_ERR("PKTS-ALL", rx_pkts_all);
144	RXS_ERR("BYTES-ALL", rx_bytes_all);
145	RXS_ERR("BEACONS", rx_beacons);
146	RXS_ERR("FRAGS", rx_frags);
147	RXS_ERR("SPECTRAL", rx_spectral);
148	RXS_ERR("SPECTRAL SMPL GOOD", rx_spectral_sample_good);
149	RXS_ERR("SPECTRAL SMPL ERR", rx_spectral_sample_err);
150
151	RXS_ERR("CRC ERR", crc_err);
152	RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
153	RXS_ERR("PHY ERR", phy_err);
154	RXS_ERR("MIC ERR", mic_err);
155	RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
156	RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
157	RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
158	RXS_ERR("LENGTH-ERR", rx_len_err);
159	RXS_ERR("OOM-ERR", rx_oom_err);
160	RXS_ERR("RATE-ERR", rx_rate_err);
161	RXS_ERR("TOO-MANY-FRAGS", rx_too_many_frags_err);
162
163	if (len > size)
164		len = size;
165
166	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
167	kfree(buf);
168
169	return retval;
170
171#undef RXS_ERR
172}
173
174static const struct file_operations fops_recv = {
175	.read = read_file_recv,
176	.open = simple_open,
177	.owner = THIS_MODULE,
178	.llseek = default_llseek,
179};
180
181void ath9k_cmn_debug_recv(struct dentry *debugfs_phy,
182			  struct ath_rx_stats *rxstats)
183{
184	debugfs_create_file("recv", 0400, debugfs_phy, rxstats, &fops_recv);
185}
186EXPORT_SYMBOL(ath9k_cmn_debug_recv);
187
188static ssize_t read_file_phy_err(struct file *file, char __user *user_buf,
189				 size_t count, loff_t *ppos)
190{
191#define PHY_ERR(s, p) \
192	len += scnprintf(buf + len, size - len, "%22s : %10u\n", s, \
193			 rxstats->phy_err_stats[p])
194
195	struct ath_rx_stats *rxstats = file->private_data;
196	char *buf;
197	unsigned int len = 0, size = 1600;
198	ssize_t retval = 0;
199
200	buf = kzalloc(size, GFP_KERNEL);
201	if (buf == NULL)
202		return -ENOMEM;
203
204	PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
205	PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
206	PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
207	PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
208	PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
209	PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
210	PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
211	PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
212
213	PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
214	PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
215	PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
216	PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
217	PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
218	PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
219	PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
220
221	PHY_ERR("CCK-BLOCKER ERR", ATH9K_PHYERR_CCK_BLOCKER);
222	PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
223	PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
224	PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
225	PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
226	PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
227	PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
228	PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
229
230	PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
231	PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
232	PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
233	PHY_ERR("HT-ZLF ERR", ATH9K_PHYERR_HT_ZLF);
234
235	PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
236	PHY_ERR("GREEN-FIELD ERR", ATH9K_PHYERR_GREEN_FIELD);
237	PHY_ERR("SPECTRAL ERR", ATH9K_PHYERR_SPECTRAL);
238
239	if (len > size)
240		len = size;
241
242	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
243	kfree(buf);
244
245	return retval;
246
247#undef PHY_ERR
248}
249
250static const struct file_operations fops_phy_err = {
251	.read = read_file_phy_err,
252	.open = simple_open,
253	.owner = THIS_MODULE,
254	.llseek = default_llseek,
255};
256
257void ath9k_cmn_debug_phy_err(struct dentry *debugfs_phy,
258			     struct ath_rx_stats *rxstats)
259{
260	debugfs_create_file("phy_err", 0400, debugfs_phy, rxstats,
261			    &fops_phy_err);
262}
263EXPORT_SYMBOL(ath9k_cmn_debug_phy_err);