1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc. */
3
4 #include "mt7921.h"
5
6 static int
mt7921_reg_set(void * data,u64 val)7 mt7921_reg_set(void *data, u64 val)
8 {
9 struct mt792x_dev *dev = data;
10
11 mt792x_mutex_acquire(dev);
12 mt76_wr(dev, dev->mt76.debugfs_reg, val);
13 mt792x_mutex_release(dev);
14
15 return 0;
16 }
17
18 static int
mt7921_reg_get(void * data,u64 * val)19 mt7921_reg_get(void *data, u64 *val)
20 {
21 struct mt792x_dev *dev = data;
22
23 mt792x_mutex_acquire(dev);
24 *val = mt76_rr(dev, dev->mt76.debugfs_reg);
25 mt792x_mutex_release(dev);
26
27 return 0;
28 }
29
30 DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mt7921_reg_get, mt7921_reg_set,
31 "0x%08llx\n");
32 static int
mt7921_fw_debug_set(void * data,u64 val)33 mt7921_fw_debug_set(void *data, u64 val)
34 {
35 struct mt792x_dev *dev = data;
36
37 mt792x_mutex_acquire(dev);
38
39 dev->fw_debug = (u8)val;
40 mt7921_mcu_fw_log_2_host(dev, dev->fw_debug);
41
42 mt792x_mutex_release(dev);
43
44 return 0;
45 }
46
47 static int
mt7921_fw_debug_get(void * data,u64 * val)48 mt7921_fw_debug_get(void *data, u64 *val)
49 {
50 struct mt792x_dev *dev = data;
51
52 *val = dev->fw_debug;
53
54 return 0;
55 }
56
57 DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7921_fw_debug_get,
58 mt7921_fw_debug_set, "%lld\n");
59
60 DEFINE_SHOW_ATTRIBUTE(mt792x_tx_stats);
61
62 static void
mt7921_seq_puts_array(struct seq_file * file,const char * str,s8 * val,int len)63 mt7921_seq_puts_array(struct seq_file *file, const char *str,
64 s8 *val, int len)
65 {
66 int i;
67
68 seq_printf(file, "%-16s:", str);
69 for (i = 0; i < len; i++)
70 if (val[i] == 127)
71 seq_printf(file, " %6s", "N.A");
72 else
73 seq_printf(file, " %6d", val[i]);
74 seq_puts(file, "\n");
75 }
76
77 #define mt7921_print_txpwr_entry(prefix, rate) \
78 ({ \
79 mt7921_seq_puts_array(s, #prefix " (user)", \
80 txpwr.data[TXPWR_USER].rate, \
81 ARRAY_SIZE(txpwr.data[TXPWR_USER].rate)); \
82 mt7921_seq_puts_array(s, #prefix " (eeprom)", \
83 txpwr.data[TXPWR_EEPROM].rate, \
84 ARRAY_SIZE(txpwr.data[TXPWR_EEPROM].rate)); \
85 mt7921_seq_puts_array(s, #prefix " (tmac)", \
86 txpwr.data[TXPWR_MAC].rate, \
87 ARRAY_SIZE(txpwr.data[TXPWR_MAC].rate)); \
88 })
89
90 static int
mt7921_txpwr(struct seq_file * s,void * data)91 mt7921_txpwr(struct seq_file *s, void *data)
92 {
93 struct mt792x_dev *dev = dev_get_drvdata(s->private);
94 struct mt7921_txpwr txpwr;
95 int ret;
96
97 mt792x_mutex_acquire(dev);
98 ret = mt7921_get_txpwr_info(dev, &txpwr);
99 mt792x_mutex_release(dev);
100
101 if (ret)
102 return ret;
103
104 seq_printf(s, "Tx power table (channel %d)\n", txpwr.ch);
105 seq_printf(s, "%-16s %6s %6s %6s %6s\n",
106 " ", "1m", "2m", "5m", "11m");
107 mt7921_print_txpwr_entry(CCK, cck);
108
109 seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s\n",
110 " ", "6m", "9m", "12m", "18m", "24m", "36m",
111 "48m", "54m");
112 mt7921_print_txpwr_entry(OFDM, ofdm);
113
114 seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s\n",
115 " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
116 "mcs6", "mcs7");
117 mt7921_print_txpwr_entry(HT20, ht20);
118
119 seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
120 " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
121 "mcs6", "mcs7", "mcs32");
122 mt7921_print_txpwr_entry(HT40, ht40);
123
124 seq_printf(s, "%-16s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
125 " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
126 "mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11");
127 mt7921_print_txpwr_entry(VHT20, vht20);
128 mt7921_print_txpwr_entry(VHT40, vht40);
129 mt7921_print_txpwr_entry(VHT80, vht80);
130 mt7921_print_txpwr_entry(VHT160, vht160);
131 mt7921_print_txpwr_entry(HE26, he26);
132 mt7921_print_txpwr_entry(HE52, he52);
133 mt7921_print_txpwr_entry(HE106, he106);
134 mt7921_print_txpwr_entry(HE242, he242);
135 mt7921_print_txpwr_entry(HE484, he484);
136 mt7921_print_txpwr_entry(HE996, he996);
137 mt7921_print_txpwr_entry(HE996x2, he996x2);
138
139 return 0;
140 }
141
142 static int
mt7921_pm_set(void * data,u64 val)143 mt7921_pm_set(void *data, u64 val)
144 {
145 struct mt792x_dev *dev = data;
146 struct mt76_connac_pm *pm = &dev->pm;
147
148 if (mt76_is_usb(&dev->mt76))
149 return -EOPNOTSUPP;
150
151 mutex_lock(&dev->mt76.mutex);
152
153 if (val == pm->enable_user)
154 goto out;
155
156 if (!pm->enable_user) {
157 pm->stats.last_wake_event = jiffies;
158 pm->stats.last_doze_event = jiffies;
159 }
160 /* make sure the chip is awake here and ps_work is scheduled
161 * just at end of the this routine.
162 */
163 pm->enable = false;
164 mt76_connac_pm_wake(&dev->mphy, pm);
165
166 pm->enable_user = val;
167 mt7921_set_runtime_pm(dev);
168 mt76_connac_power_save_sched(&dev->mphy, pm);
169 out:
170 mutex_unlock(&dev->mt76.mutex);
171
172 return 0;
173 }
174
175 static int
mt7921_pm_get(void * data,u64 * val)176 mt7921_pm_get(void *data, u64 *val)
177 {
178 struct mt792x_dev *dev = data;
179
180 *val = dev->pm.enable_user;
181
182 return 0;
183 }
184
185 DEFINE_DEBUGFS_ATTRIBUTE(fops_pm, mt7921_pm_get, mt7921_pm_set, "%lld\n");
186
187 static int
mt7921_deep_sleep_set(void * data,u64 val)188 mt7921_deep_sleep_set(void *data, u64 val)
189 {
190 struct mt792x_dev *dev = data;
191 struct mt76_connac_pm *pm = &dev->pm;
192 bool monitor = !!(dev->mphy.hw->conf.flags & IEEE80211_CONF_MONITOR);
193 bool enable = !!val;
194
195 if (mt76_is_usb(&dev->mt76))
196 return -EOPNOTSUPP;
197
198 mt792x_mutex_acquire(dev);
199 if (pm->ds_enable_user == enable)
200 goto out;
201
202 pm->ds_enable_user = enable;
203 pm->ds_enable = enable && !monitor;
204 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
205 out:
206 mt792x_mutex_release(dev);
207
208 return 0;
209 }
210
211 static int
mt7921_deep_sleep_get(void * data,u64 * val)212 mt7921_deep_sleep_get(void *data, u64 *val)
213 {
214 struct mt792x_dev *dev = data;
215
216 *val = dev->pm.ds_enable_user;
217
218 return 0;
219 }
220
221 DEFINE_DEBUGFS_ATTRIBUTE(fops_ds, mt7921_deep_sleep_get,
222 mt7921_deep_sleep_set, "%lld\n");
223
224 DEFINE_DEBUGFS_ATTRIBUTE(fops_pm_idle_timeout, mt792x_pm_idle_timeout_get,
225 mt792x_pm_idle_timeout_set, "%lld\n");
226
mt7921_chip_reset(void * data,u64 val)227 static int mt7921_chip_reset(void *data, u64 val)
228 {
229 struct mt792x_dev *dev = data;
230 int ret = 0;
231
232 switch (val) {
233 case 1:
234 /* Reset wifisys directly. */
235 mt792x_reset(&dev->mt76);
236 break;
237 default:
238 /* Collect the core dump before reset wifisys. */
239 mt792x_mutex_acquire(dev);
240 ret = mt76_connac_mcu_chip_config(&dev->mt76);
241 mt792x_mutex_release(dev);
242 break;
243 }
244
245 return ret;
246 }
247
248 DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7921_chip_reset, "%lld\n");
249
250 static int
mt7921s_sched_quota_read(struct seq_file * s,void * data)251 mt7921s_sched_quota_read(struct seq_file *s, void *data)
252 {
253 struct mt792x_dev *dev = dev_get_drvdata(s->private);
254 struct mt76_sdio *sdio = &dev->mt76.sdio;
255
256 seq_printf(s, "pse_data_quota\t%d\n", sdio->sched.pse_data_quota);
257 seq_printf(s, "ple_data_quota\t%d\n", sdio->sched.ple_data_quota);
258 seq_printf(s, "pse_mcu_quota\t%d\n", sdio->sched.pse_mcu_quota);
259 seq_printf(s, "sched_deficit\t%d\n", sdio->sched.deficit);
260
261 return 0;
262 }
263
mt7921_init_debugfs(struct mt792x_dev * dev)264 int mt7921_init_debugfs(struct mt792x_dev *dev)
265 {
266 struct dentry *dir;
267
268 dir = mt76_register_debugfs_fops(&dev->mphy, &fops_regval);
269 if (!dir)
270 return -ENOMEM;
271
272 if (mt76_is_mmio(&dev->mt76))
273 debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues",
274 dir, mt792x_queues_read);
275 else
276 debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues",
277 dir, mt76_queues_read);
278
279 debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
280 mt792x_queues_acq);
281 debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
282 mt7921_txpwr);
283 debugfs_create_file("tx_stats", 0400, dir, dev, &mt792x_tx_stats_fops);
284 debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
285 debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm);
286 debugfs_create_file("idle-timeout", 0600, dir, dev,
287 &fops_pm_idle_timeout);
288 debugfs_create_file("chip_reset", 0600, dir, dev, &fops_reset);
289 debugfs_create_devm_seqfile(dev->mt76.dev, "runtime_pm_stats", dir,
290 mt792x_pm_stats);
291 debugfs_create_file("deep-sleep", 0600, dir, dev, &fops_ds);
292 if (mt76_is_sdio(&dev->mt76))
293 debugfs_create_devm_seqfile(dev->mt76.dev, "sched-quota", dir,
294 mt7921s_sched_quota_read);
295 return 0;
296 }
297