1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Debugfs interface.
*
* Copyright (c) 2017-2019, Silicon Laboratories, Inc.
* Copyright (c) 2010, ST-Ericsson
*/
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/crc32.h>
#include "debug.h"
#include "wfx.h"
#include "sta.h"
#include "main.h"
#include "hif_tx.h"
#include "hif_tx_mib.h"
#define CREATE_TRACE_POINTS
#include "traces.h"
static const struct trace_print_flags hif_msg_print_map[] = {
hif_msg_list,
};
static const struct trace_print_flags hif_mib_print_map[] = {
hif_mib_list,
};
static const struct trace_print_flags wfx_reg_print_map[] = {
wfx_reg_list,
};
static const char *get_symbol(unsigned long val,
const struct trace_print_flags *symbol_array)
{
int i;
for (i = 0; symbol_array[i].mask != -1; i++) {
if (val == symbol_array[i].mask)
return symbol_array[i].name;
}
return "unknown";
}
const char *get_hif_name(unsigned long id)
{
return get_symbol(id, hif_msg_print_map);
}
const char *get_mib_name(unsigned long id)
{
return get_symbol(id, hif_mib_print_map);
}
const char *get_reg_name(unsigned long id)
{
return get_symbol(id, wfx_reg_print_map);
}
static int wfx_counters_show(struct seq_file *seq, void *v)
{
int ret;
struct wfx_dev *wdev = seq->private;
struct hif_mib_extended_count_table counters;
ret = hif_get_counters_table(wdev, &counters);
if (ret < 0)
return ret;
if (ret > 0)
return -EIO;
#define PUT_COUNTER(name) \
seq_printf(seq, "%24s %d\n", #name ":",\
le32_to_cpu(counters.count_##name))
PUT_COUNTER(tx_packets);
PUT_COUNTER(tx_multicast_frames);
PUT_COUNTER(tx_frames_success);
PUT_COUNTER(tx_frame_failures);
PUT_COUNTER(tx_frames_retried);
PUT_COUNTER(tx_frames_multi_retried);
PUT_COUNTER(rts_success);
PUT_COUNTER(rts_failures);
PUT_COUNTER(ack_failures);
PUT_COUNTER(rx_packets);
PUT_COUNTER(rx_frames_success);
PUT_COUNTER(rx_packet_errors);
PUT_COUNTER(plcp_errors);
PUT_COUNTER(fcs_errors);
PUT_COUNTER(rx_decryption_failures);
PUT_COUNTER(rx_mic_failures);
PUT_COUNTER(rx_no_key_failures);
PUT_COUNTER(rx_frame_duplicates);
PUT_COUNTER(rx_multicast_frames);
PUT_COUNTER(rx_cmacicv_errors);
PUT_COUNTER(rx_cmac_replays);
PUT_COUNTER(rx_mgmt_ccmp_replays);
PUT_COUNTER(rx_beacon);
PUT_COUNTER(miss_beacon);
#undef PUT_COUNTER
return 0;
}
DEFINE_SHOW_ATTRIBUTE(wfx_counters);
static const char * const channel_names[] = {
[0] = "1M",
[1] = "2M",
[2] = "5.5M",
[3] = "11M",
/* Entries 4 and 5 does not exist */
[6] = "6M",
[7] = "9M",
[8] = "12M",
[9] = "18M",
[10] = "24M",
[11] = "36M",
[12] = "48M",
[13] = "54M",
[14] = "MCS0",
[15] = "MCS1",
[16] = "MCS2",
[17] = "MCS3",
[18] = "MCS4",
[19] = "MCS5",
[20] = "MCS6",
[21] = "MCS7",
};
static int wfx_rx_stats_show(struct seq_file *seq, void *v)
{
struct wfx_dev *wdev = seq->private;
struct hif_rx_stats *st = &wdev->rx_stats;
int i;
mutex_lock(&wdev->rx_stats_lock);
seq_printf(seq, "Timestamp: %dus\n", st->date);
seq_printf(seq, "Low power clock: frequency %uHz, external %s\n",
st->pwr_clk_freq,
st->is_ext_pwr_clk ? "yes" : "no");
seq_printf(seq,
"Num. of frames: %d, PER (x10e4): %d, Throughput: %dKbps/s\n",
st->nb_rx_frame, st->per_total, st->throughput);
seq_puts(seq, " Num. of PER RSSI SNR CFO\n");
seq_puts(seq, " frames (x10e4) (dBm) (dB) (kHz)\n");
for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
if (channel_names[i])
seq_printf(seq, "%5s %8d %8d %8d %8d %8d\n",
channel_names[i], st->nb_rx_by_rate[i],
st->per[i], st->rssi[i] / 100,
st->snr[i] / 100, st->cfo[i]);
}
mutex_unlock(&wdev->rx_stats_lock);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(wfx_rx_stats);
static ssize_t wfx_send_pds_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wfx_dev *wdev = file->private_data;
char *buf;
int ret;
if (*ppos != 0) {
dev_dbg(wdev->dev, "PDS data must be written in one transaction");
return -EBUSY;
}
buf = memdup_user(user_buf, count);
if (IS_ERR(buf))
return PTR_ERR(buf);
*ppos = *ppos + count;
ret = wfx_send_pds(wdev, buf, count);
kfree(buf);
if (ret < 0)
return ret;
return count;
}
static const struct file_operations wfx_send_pds_fops = {
.open = simple_open,
.write = wfx_send_pds_write,
};
static ssize_t wfx_burn_slk_key_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wfx_dev *wdev = file->private_data;
dev_info(wdev->dev, "this driver does not support secure link\n");
return -EINVAL;
}
static const struct file_operations wfx_burn_slk_key_fops = {
.open = simple_open,
.write = wfx_burn_slk_key_write,
};
struct dbgfs_hif_msg {
struct wfx_dev *wdev;
struct completion complete;
u8 reply[1024];
int ret;
};
static ssize_t wfx_send_hif_msg_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct dbgfs_hif_msg *context = file->private_data;
struct wfx_dev *wdev = context->wdev;
struct hif_msg *request;
if (completion_done(&context->complete)) {
dev_dbg(wdev->dev, "read previous result before start a new one\n");
return -EBUSY;
}
if (count < sizeof(struct hif_msg))
return -EINVAL;
// wfx_cmd_send() chekc that reply buffer is wide enough, but do not
// return precise length read. User have to know how many bytes should
// be read. Filling reply buffer with a memory pattern may help user.
memset(context->reply, 0xFF, sizeof(context->reply));
request = memdup_user(user_buf, count);
if (IS_ERR(request))
return PTR_ERR(request);
if (request->len != count) {
kfree(request);
return -EINVAL;
}
context->ret = wfx_cmd_send(wdev, request, context->reply,
sizeof(context->reply), false);
kfree(request);
complete(&context->complete);
return count;
}
static ssize_t wfx_send_hif_msg_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct dbgfs_hif_msg *context = file->private_data;
int ret;
if (count > sizeof(context->reply))
return -EINVAL;
ret = wait_for_completion_interruptible(&context->complete);
if (ret)
return ret;
if (context->ret < 0)
return context->ret;
// Be carefull, write() is waiting for a full message while read()
// only return a payload
if (copy_to_user(user_buf, context->reply, count))
return -EFAULT;
return count;
}
static int wfx_send_hif_msg_open(struct inode *inode, struct file *file)
{
struct dbgfs_hif_msg *
|