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
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD MP2 1.1 communication driver
*
* Copyright (c) 2022, Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
*/
#include <linux/delay.h>
#include <linux/hid.h>
#include "amd_sfh_init.h"
#include "amd_sfh_interface.h"
#include "../hid_descriptor/amd_sfh_hid_desc.h"
static int amd_sfh_get_sensor_num(struct amd_mp2_dev *mp2, u8 *sensor_id)
{
struct sfh_sensor_list *slist;
struct sfh_base_info binfo;
int num_of_sensors = 0;
int i;
memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
slist = &binfo.sbase.s_list;
for (i = 0; i < MAX_IDX; i++) {
switch (i) {
case ACCEL_IDX:
case GYRO_IDX:
case MAG_IDX:
case ALS_IDX:
case HPD_IDX:
if (BIT(i) & slist->sl.sensors)
sensor_id[num_of_sensors++] = i;
break;
}
}
return num_of_sensors;
}
static u32 amd_sfh_wait_for_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
{
if (mp2->mp2_ops->response)
return mp2->mp2_ops->response(mp2, sid, cmd_id);
return 0;
}
static const char *get_sensor_name(int idx)
{
switch (idx) {
case ACCEL_IDX:
return "accelerometer";
case GYRO_IDX:
return "gyroscope";
case MAG_IDX:
return "magnetometer";
case ALS_IDX:
return "ALS";
case HPD_IDX:
return "HPD";
default:
return "unknown sensor type";
}
}
static int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
{
struct amdtp_cl_data *cl_data = privdata->cl_data;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
privdata->mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
status = amd_sfh_wait_for_response
(privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
if (status == 0)
cl_data->sensor_sts[i] = SENSOR_DISABLED;
dev_dbg(&privdata->pdev->dev, "stopping sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
cancel_delayed_work_sync(&cl_data->work);
cancel_delayed_work_sync(&cl_data->work_buffer);
amdtp_hid_remove(cl_data);
return 0;
}
static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata)
{
struct amd_input_data *in_data = &privdata->in_data;
struct amdtp_cl_data *cl_data = privdata->cl_data;
struct amd_mp2_ops *mp2_ops = privdata->mp2_ops;
struct amd_mp2_sensor_info info;
struct request_list *req_list;
u32 feature_report_size;
u32 input_report_size;
struct device *dev;
int rc, i, status;
u8 cl_idx;
req_list = &cl_data->req_list;
dev = &privdata->pdev->dev;
amd_sfh1_1_set_desc_ops(mp2_ops);
cl_data->num_hid_devices = amd_sfh_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
if (cl_data->num_hid_devices == 0)
return -ENODEV;
INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);
INIT_LIST_HEAD(&req_list->list);
cl_data->in_data = in_data;
for (i = 0; i < cl_data->num_hid_devices; i++) {
cl_data->sensor_sts[i] = SENSOR_DISABLED;
cl_data->sensor_requested_cnt[i] = 0;
cl_data->cur_hid_dev = i;
cl_idx = cl_data->sensor_idx[i];
cl_data->report_descr_sz[i] = mp2_ops->get_desc_sz(cl_idx, descr_size);
if (!cl_data->report_descr_sz[i]) {
rc = -EINVAL;
goto cleanup;
}
feature_report_size = mp2_ops->get_desc_sz(cl_idx, feature_size);
if (!feature_report_size) {
rc = -EINVAL;
goto cleanup;
}
input_report_size = mp2_ops->get_desc_sz(cl_idx, input_size);
if (!input_report_size) {
rc = -EINVAL;
goto cleanup;
}
cl_data->feature_report[i] = devm_kzalloc(dev, feature_report_size, GFP_KERNEL);
if (!cl_data->feature_report[i]) {
rc = -ENOMEM;
goto cleanup;
}
in_data->input_report[i] = devm_kzalloc(dev, input_report_size, GFP_KERNEL);
if (!in_data->input_report[i]) {
rc = -ENOMEM;
goto cleanup;
}
info.sensor_idx = cl_idx;
cl_data->report_descr[i] =
devm_kzalloc(dev, cl_data->report_descr_sz[i], GFP_KERNEL);
if (!cl_data->report_descr[i]) {
rc = -ENOMEM;
goto cleanup;
}
rc = mp2_ops->get_rep_desc(cl_idx, cl_data->report_descr[i]);
if (rc)
goto cleanup;
writel(0, privdata->mmio + AMD_P2C_MSG(0));
mp2_ops->start(privdata, info);
status = amd_sfh_wait_for_response
(privdata, cl_data->sensor_idx[i], ENABLE_SENSOR);
status = (status == 0) ? SENSOR_ENABLED : SENSOR_DISABLED;
if (status == SENSOR_ENABLED) {
cl_data->sensor_sts[i] = SENSOR_ENABLED;
rc = amdtp_hid_probe(i, cl_data);
if (rc) {
mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
status = amd_sfh_wait_for_response
(privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
if (status == 0)
status = SENSOR_DISABLED;
if (status != SENSOR_ENABLED)
cl_data->sensor_sts[i] = SENSOR_DISABLED;
dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i],
get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
goto cleanup;
}
}
dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
return 0;
cleanup:
amd_sfh_hid_client_deinit(privdata);
for (i = 0; i < cl_data->num_hid_devices; i++) {
devm_kfree(dev, cl_data->feature_report[i]);
devm_kfree(dev, in_data->input_report[i]);
devm_kfree(dev, cl_data->report_descr[i]);
}
return rc;
}
static void amd_sfh_resume(struct amd_mp2_dev *mp2)
{
struct amdtp_cl_data *cl_data = mp2->cl_data;
struct amd_mp2_sensor_info info;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_sts[i] == SENSOR_DISABLED) {
info.sensor_idx = cl_data->sensor_idx[i];
mp2->mp2_ops->start(mp2, info);
status = amd_sfh_wait_for_response
(mp2, cl_data->sensor_idx[i], ENABLE_SENSOR);
if (status == 0)
status = SENSOR_ENABLED;
if (status == SENSOR_ENABLED)
cl_data->sensor_sts[i] = SENSOR_ENABLED;
dev_dbg(&mp2->pdev->dev, "resume sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
amd_sfh_clear_intr(mp2);
}
static void amd_sfh_suspend(struct amd_mp2_dev *mp2)
{
struct amdtp_cl_data *cl_data = mp2->cl_data;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_idx[i] != HPD_IDX &&
cl_data->sensor_sts[i] == SENSOR_ENABLED) {
mp2->mp2_ops->stop(mp2, cl_data->sensor_idx[i]);
status = amd_sfh_wait_for_response
(mp2, cl_data->sensor_idx[i], DISABLE_SENSOR);
if (status == 0)
status = SENSOR_DISABLED;
if (status != SENSOR_ENABLED)
cl_data->sensor_sts[i] = SENSOR_DISABLED;
dev_dbg(&mp2->pdev->dev, "suspend sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
cancel_delayed_work_sync(&cl_data->work_buffer);
amd_sfh_clear_intr(mp2);
}
static void amd_mp2_pci_remove(void *privdata)
{
struct amd_mp2_dev *mp2 = privdata;
amd_sfh_hid_client_deinit(privdata);
mp2->mp2_ops->stop_all(mp2);
pci_intx(mp2->pdev, false);
amd_sfh_clear_intr(mp2);
}
static void amd_sfh_set_ops(struct amd_mp2_dev *mp2)
{
struct amd_mp2_ops *mp2_ops;
sfh_interface_init(mp2);
mp2_ops = mp2->mp2_ops;
mp2_ops->clear_intr = amd_sfh_clear_intr_v2,
mp2_ops->init_intr = amd_sfh_irq_init_v2,
mp2_ops->suspend = amd_sfh_suspend;
mp2_ops->resume = amd_sfh_resume;
mp2_ops->remove = amd_mp2_pci_remove;
}
int amd_sfh1_1_init(struct amd_mp2_dev *mp2)
{
u32 phy_base = readl(mp2->mmio + AMD_C2P_MSG(22));
struct device *dev = &mp2->pdev->dev;
struct sfh_base_info binfo;
int rc;
phy_base <<= 21;
if (!devm_request_mem_region(dev, phy_base, 128 * 1024, "amd_sfh")) {
dev_dbg(dev, "can't reserve mmio registers\n");
return -ENOMEM;
}
mp2->vsbase = devm_ioremap(dev, phy_base, 128 * 1024);
if (!mp2->vsbase) {
dev_dbg(dev, "failed to remap vsbase\n");
return -ENOMEM;
}
/* Before accessing give time for SFH firmware for processing configuration */
msleep(5000);
memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
if (binfo.sbase.fw_info.fw_ver == 0 || binfo.sbase.s_list.sl.sensors == 0) {
dev_dbg(dev, "failed to get sensors\n");
return -EOPNOTSUPP;
}
dev_dbg(dev, "firmware version 0x%x\n", binfo.sbase.fw_info.fw_ver);
amd_sfh_set_ops(mp2);
rc = amd_sfh_irq_init(mp2);
if (rc) {
dev_err(dev, "amd_sfh_irq_init failed\n");
return rc;
}
rc = amd_sfh1_1_hid_client_init(mp2);
if (rc) {
dev_err(dev, "amd_sfh1_1_hid_client_init failed\n");
return rc;
}
return rc;
}
|
