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8#include <linux/debugfs.h>
9#include <linux/seq_file.h>
10#include <linux/crc32.h>
11
12#include "debug.h"
13#include "wfx.h"
14#include "sta.h"
15#include "main.h"
16#include "hif_tx.h"
17#include "hif_tx_mib.h"
18
19#define CREATE_TRACE_POINTS
20#include "traces.h"
21
22static const struct trace_print_flags hif_msg_print_map[] = {
23 hif_msg_list,
24};
25
26static const struct trace_print_flags hif_mib_print_map[] = {
27 hif_mib_list,
28};
29
30static const struct trace_print_flags wfx_reg_print_map[] = {
31 wfx_reg_list,
32};
33
34static const char *get_symbol(unsigned long val,
35 const struct trace_print_flags *symbol_array)
36{
37 int i;
38
39 for (i = 0; symbol_array[i].mask != -1; i++) {
40 if (val == symbol_array[i].mask)
41 return symbol_array[i].name;
42 }
43
44 return "unknown";
45}
46
47const char *get_hif_name(unsigned long id)
48{
49 return get_symbol(id, hif_msg_print_map);
50}
51
52const char *get_mib_name(unsigned long id)
53{
54 return get_symbol(id, hif_mib_print_map);
55}
56
57const char *get_reg_name(unsigned long id)
58{
59 return get_symbol(id, wfx_reg_print_map);
60}
61
62static int wfx_counters_show(struct seq_file *seq, void *v)
63{
64 int ret;
65 struct wfx_dev *wdev = seq->private;
66 struct hif_mib_extended_count_table counters;
67
68 ret = hif_get_counters_table(wdev, &counters);
69 if (ret < 0)
70 return ret;
71 if (ret > 0)
72 return -EIO;
73
74#define PUT_COUNTER(name) \
75 seq_printf(seq, "%24s %d\n", #name ":",\
76 le32_to_cpu(counters.count_##name))
77
78 PUT_COUNTER(tx_packets);
79 PUT_COUNTER(tx_multicast_frames);
80 PUT_COUNTER(tx_frames_success);
81 PUT_COUNTER(tx_frame_failures);
82 PUT_COUNTER(tx_frames_retried);
83 PUT_COUNTER(tx_frames_multi_retried);
84
85 PUT_COUNTER(rts_success);
86 PUT_COUNTER(rts_failures);
87 PUT_COUNTER(ack_failures);
88
89 PUT_COUNTER(rx_packets);
90 PUT_COUNTER(rx_frames_success);
91 PUT_COUNTER(rx_packet_errors);
92 PUT_COUNTER(plcp_errors);
93 PUT_COUNTER(fcs_errors);
94 PUT_COUNTER(rx_decryption_failures);
95 PUT_COUNTER(rx_mic_failures);
96 PUT_COUNTER(rx_no_key_failures);
97 PUT_COUNTER(rx_frame_duplicates);
98 PUT_COUNTER(rx_multicast_frames);
99 PUT_COUNTER(rx_cmacicv_errors);
100 PUT_COUNTER(rx_cmac_replays);
101 PUT_COUNTER(rx_mgmt_ccmp_replays);
102
103 PUT_COUNTER(rx_beacon);
104 PUT_COUNTER(miss_beacon);
105
106#undef PUT_COUNTER
107
108 return 0;
109}
110DEFINE_SHOW_ATTRIBUTE(wfx_counters);
111
112static const char * const channel_names[] = {
113 [0] = "1M",
114 [1] = "2M",
115 [2] = "5.5M",
116 [3] = "11M",
117
118 [6] = "6M",
119 [7] = "9M",
120 [8] = "12M",
121 [9] = "18M",
122 [10] = "24M",
123 [11] = "36M",
124 [12] = "48M",
125 [13] = "54M",
126 [14] = "MCS0",
127 [15] = "MCS1",
128 [16] = "MCS2",
129 [17] = "MCS3",
130 [18] = "MCS4",
131 [19] = "MCS5",
132 [20] = "MCS6",
133 [21] = "MCS7",
134};
135
136static int wfx_rx_stats_show(struct seq_file *seq, void *v)
137{
138 struct wfx_dev *wdev = seq->private;
139 struct hif_rx_stats *st = &wdev->rx_stats;
140 int i;
141
142 mutex_lock(&wdev->rx_stats_lock);
143 seq_printf(seq, "Timestamp: %dus\n", st->date);
144 seq_printf(seq, "Low power clock: frequency %uHz, external %s\n",
145 st->pwr_clk_freq,
146 st->is_ext_pwr_clk ? "yes" : "no");
147 seq_printf(seq,
148 "N. of frames: %d, PER (x10e4): %d, Throughput: %dKbps/s\n",
149 st->nb_rx_frame, st->per_total, st->throughput);
150 seq_puts(seq, " Num. of PER RSSI SNR CFO\n");
151 seq_puts(seq, " frames (x10e4) (dBm) (dB) (kHz)\n");
152 for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
153 if (channel_names[i])
154 seq_printf(seq, "%5s %8d %8d %8d %8d %8d\n",
155 channel_names[i], st->nb_rx_by_rate[i],
156 st->per[i], st->rssi[i] / 100,
157 st->snr[i] / 100, st->cfo[i]);
158 }
159 mutex_unlock(&wdev->rx_stats_lock);
160
161 return 0;
162}
163DEFINE_SHOW_ATTRIBUTE(wfx_rx_stats);
164
165static ssize_t wfx_send_pds_write(struct file *file,
166 const char __user *user_buf,
167 size_t count, loff_t *ppos)
168{
169 struct wfx_dev *wdev = file->private_data;
170 char *buf;
171 int ret;
172
173 if (*ppos != 0) {
174 dev_dbg(wdev->dev, "PDS data must be written in one transaction");
175 return -EBUSY;
176 }
177 buf = memdup_user(user_buf, count);
178 if (IS_ERR(buf))
179 return PTR_ERR(buf);
180 *ppos = *ppos + count;
181 ret = wfx_send_pds(wdev, buf, count);
182 kfree(buf);
183 if (ret < 0)
184 return ret;
185 return count;
186}
187
188static const struct file_operations wfx_send_pds_fops = {
189 .open = simple_open,
190 .write = wfx_send_pds_write,
191};
192
193static ssize_t wfx_burn_slk_key_write(struct file *file,
194 const char __user *user_buf,
195 size_t count, loff_t *ppos)
196{
197 struct wfx_dev *wdev = file->private_data;
198
199 dev_info(wdev->dev, "this driver does not support secure link\n");
200 return -EINVAL;
201}
202
203static const struct file_operations wfx_burn_slk_key_fops = {
204 .open = simple_open,
205 .write = wfx_burn_slk_key_write,
206};
207
208struct dbgfs_hif_msg {
209 struct wfx_dev *wdev;
210 struct completion complete;
211 u8 reply[1024];
212 int ret;
213};
214
215static ssize_t wfx_send_hif_msg_write(struct file *file,
216 const char __user *user_buf,
217 size_t count, loff_t *ppos)
218{
219 struct dbgfs_hif_msg *context = file->private_data;
220 struct wfx_dev *wdev = context->wdev;
221 struct hif_msg *request;
222
223 if (completion_done(&context->complete)) {
224 dev_dbg(wdev->dev, "read previous result before start a new one\n");
225 return -EBUSY;
226 }
227 if (count < sizeof(struct hif_msg))
228 return -EINVAL;
229
230
231
232
233 memset(context->reply, 0xFF, sizeof(context->reply));
234 request = memdup_user(user_buf, count);
235 if (IS_ERR(request))
236 return PTR_ERR(request);
237 if (request->len != count) {
238 kfree(request);
239 return -EINVAL;
240 }
241 context->ret = wfx_cmd_send(wdev, request, context->reply,
242 sizeof(context->reply), false);
243
244 kfree(request);
245 complete(&context->complete);
246 return count;
247}
248
249static ssize_t wfx_send_hif_msg_read(struct file *file, char __user *user_buf,
250 size_t count, loff_t *ppos)
251{
252 struct dbgfs_hif_msg *context = file->private_data;
253 int ret;
254
255 if (count > sizeof(context->reply))
256 return -EINVAL;
257 ret = wait_for_completion_interruptible(&context->complete);
258 if (ret)
259 return ret;
260 if (context->ret < 0)
261 return context->ret;
262
263
264 if (copy_to_user(user_buf, context->reply, count))
265 return -EFAULT;
266
267 return count;
268}
269
270static int wfx_send_hif_msg_open(struct inode *inode, struct file *file)
271{
272 struct dbgfs_hif_msg *context = kzalloc(sizeof(*context), GFP_KERNEL);
273
274 if (!context)
275 return -ENOMEM;
276 context->wdev = inode->i_private;
277 init_completion(&context->complete);
278 file->private_data = context;
279 return 0;
280}
281
282static int wfx_send_hif_msg_release(struct inode *inode, struct file *file)
283{
284 struct dbgfs_hif_msg *context = file->private_data;
285
286 kfree(context);
287 return 0;
288}
289
290static const struct file_operations wfx_send_hif_msg_fops = {
291 .open = wfx_send_hif_msg_open,
292 .release = wfx_send_hif_msg_release,
293 .write = wfx_send_hif_msg_write,
294 .read = wfx_send_hif_msg_read,
295};
296
297int wfx_debug_init(struct wfx_dev *wdev)
298{
299 struct dentry *d;
300
301 d = debugfs_create_dir("wfx", wdev->hw->wiphy->debugfsdir);
302 debugfs_create_file("counters", 0444, d, wdev, &wfx_counters_fops);
303 debugfs_create_file("rx_stats", 0444, d, wdev, &wfx_rx_stats_fops);
304 debugfs_create_file("send_pds", 0200, d, wdev, &wfx_send_pds_fops);
305 debugfs_create_file("burn_slk_key", 0200, d, wdev,
306 &wfx_burn_slk_key_fops);
307 debugfs_create_file("send_hif_msg", 0600, d, wdev,
308 &wfx_send_hif_msg_fops);
309
310 return 0;
311}
312
