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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD MP2 1.1 descriptor interfaces
*
* Copyright (c) 2022, Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
*/
#include <linux/hid-sensor-ids.h>
#include "amd_sfh_interface.h"
#include "../hid_descriptor/amd_sfh_hid_desc.h"
#include "../hid_descriptor/amd_sfh_hid_report_desc.h"
#define SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM 0x41
#define SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM 0x51
#define HID_DEFAULT_REPORT_INTERVAL 0x50
#define HID_DEFAULT_MIN_VALUE 0X7F
#define HID_DEFAULT_MAX_VALUE 0x80
#define HID_DEFAULT_SENSITIVITY 0x7F
#define HID_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED_ENUM 0x01
/* state enums */
#define HID_USAGE_SENSOR_STATE_READY_ENUM 0x02
#define HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM 0x05
#define HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM 0x04
static int get_report_desc(int sensor_idx, u8 *rep_desc)
{
switch (sensor_idx) {
case ACCEL_IDX: /* accelerometer */
memset(rep_desc, 0, sizeof(accel3_report_descriptor));
memcpy(rep_desc, accel3_report_descriptor,
sizeof(accel3_report_descriptor));
break;
case GYRO_IDX: /* gyroscope */
memset(rep_desc, 0, sizeof(gyro3_report_descriptor));
memcpy(rep_desc, gyro3_report_descriptor,
sizeof(gyro3_report_descriptor));
break;
case MAG_IDX: /* magnetometer */
memset(rep_desc, 0, sizeof(comp3_report_descriptor));
memcpy(rep_desc, comp3_report_descriptor,
sizeof(comp3_report_descriptor));
break;
case ALS_IDX: /* ambient light sensor */
memset(rep_desc, 0, sizeof(als_report_descriptor));
memcpy(rep_desc, als_report_descriptor,
sizeof(als_report_descriptor));
break;
case HPD_IDX: /* HPD sensor */
memset(rep_desc, 0, sizeof(hpd_report_descriptor));
memcpy(rep_desc, hpd_report_descriptor,
sizeof(hpd_report_descriptor));
break;
}
return 0;
}
static void get_common_features(struct common_feature_property *common, int report_id)
{
common->report_id = report_id;
common->connection_type = HID_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED_ENUM;
common->report_state = SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM;
common->power_state = SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM;
common->sensor_state = HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM;
common->report_interval = HID_DEFAULT_REPORT_INTERVAL;
}
static u8 get_feature_rep(int sensor_idx, int report_id, u8 *feature_report)
{
struct magno_feature_report magno_feature;
struct accel3_feature_report acc_feature;
struct gyro_feature_report gyro_feature;
struct hpd_feature_report hpd_feature;
struct als_feature_report als_feature;
u8 report_size = 0;
if (!feature_report)
return report_size;
switch (sensor_idx) {
case ACCEL_IDX: /* accelerometer */
get_common_features(&acc_feature.common_property, report_id);
acc_feature.accel_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
acc_feature.accel_sensitivity_min = HID_DEFAULT_MIN_VALUE;
acc_feature.accel_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &acc_feature, sizeof(acc_feature));
report_size = sizeof(acc_feature);
break;
case GYRO_IDX: /* gyroscope */
get_common_features(&gyro_feature.common_property, report_id);
gyro_feature.gyro_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
gyro_feature.gyro_sensitivity_min = HID_DEFAULT_MIN_VALUE;
gyro_feature.gyro_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &gyro_feature, sizeof(gyro_feature));
report_size = sizeof(gyro_feature);
break;
case MAG_IDX: /* magnetometer */
get_common_features(&magno_feature.common_property, report_id);
magno_feature.magno_headingchange_sensitivity = HID_DEFAULT_SENSITIVITY;
magno_feature.heading_min = HID_DEFAULT_MIN_VALUE;
magno_feature.heading_max = HID_DEFAULT_MAX_VALUE;
magno_feature.flux_change_sensitivity = HID_DEFAULT_MIN_VALUE;
magno_feature.flux_min = HID_DEFAULT_MIN_VALUE;
magno_feature.flux_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &magno_feature, sizeof(magno_feature));
report_size = sizeof(magno_feature);
break;
case ALS_IDX: /* ambient light sensor */
get_common_features(&als_feature.common_property, report_id);
als_feature.als_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
als_feature.als_sensitivity_min = HID_DEFAULT_MIN_VALUE;
als_feature.als_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &als_feature, sizeof(als_feature));
report_size = sizeof(als_feature);
break;
case HPD_IDX: /* human presence detection sensor */
get_common_features(&hpd_feature.common_property, report_id);
memcpy(feature_report, &hpd_feature, sizeof(hpd_feature));
report_size = sizeof(hpd_feature);
break;
}
return report_size;
}
static void get_common_inputs(struct common_input_property *common, int report_id)
{
common->report_id = report_id;
common->sensor_state = HID_USAGE_SENSOR_STATE_READY_ENUM;
common->event_type = HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM;
}
static int float_to_int(u32 flt32_val)
{
int fraction, shift, mantissa, sign, exp, zeropre;
mantissa = flt32_val & GENMASK(22, 0);
sign = (flt32_val & BIT(31)) ? -1 : 1;
exp = (flt32_val & ~BIT(31)) >> 23;
if (!exp && !mantissa)
return 0;
/*
* Calculate the exponent and fraction part of floating
* point representation.
*/
exp -= 127;
if (exp < 0) {
exp = -exp;
if (exp >= BITS_PER_TYPE(u32))
return 0;
zeropre = (((BIT(23) + mantissa) * 100) >> 23) >> exp;
return zeropre >= 50 ? sign : 0;
}
shift = 23 - exp;
if (abs(shift) >= BITS_PER_TYPE(u32))
return 0;
if (shift < 0) {
shift = -shift;
flt32_val = BIT(exp) + (mantissa << shift);
shift = 0;
} else {
flt32_val = BIT(exp) + (mantissa >> shift);
}
fraction = (shift == 0) ? 0 : mantissa & GENMASK(shift - 1, 0);
return (((fraction * 100) >> shift) >= 50) ? sign * (flt32_val + 1) : sign * flt32_val;
}
static u8 get_input_rep(u8 current_index, int sensor_idx, int report_id,
struct amd_input_data *in_data)
{
struct amd_mp2_dev *mp2 = container_of(in_data, struct amd_mp2_dev, in_data);
u8 *input_report = in_data->input_report[current_index];
struct magno_input_report magno_input;
struct accel3_input_report acc_input;
struct gyro_input_report gyro_input;
struct als_input_report als_input;
struct hpd_input_report hpd_input;
struct sfh_accel_data accel_data;
struct sfh_gyro_data gyro_data;
struct sfh_mag_data mag_data;
struct sfh_als_data als_data;
struct hpd_status hpdstatus;
struct sfh_base_info binfo;
void __iomem *sensoraddr;
u8 report_size = 0;
if (!input_report)
return report_size;
switch (sensor_idx) {
case ACCEL_IDX: /* accelerometer */
sensoraddr = mp2->vsbase + (ACCEL_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
OFFSET_SENSOR_DATA_DEFAULT;
memcpy_fromio(&accel_data, sensoraddr, sizeof(struct sfh_accel_data));
get_common_inputs(&acc_input.common_property, report_id);
acc_input.in_accel_x_value = float_to_int(accel_data.acceldata.x) / 100;
acc_input.in_accel_y_value = float_to_int(accel_data.acceldata.y) / 100;
acc_input.in_accel_z_value = float_to_int(accel_data.acceldata.z) / 100;
memcpy(input_report, &acc_input, sizeof(acc_input));
report_size = sizeof(acc_input);
break;
case GYRO_IDX: /* gyroscope */
sensoraddr = mp2->vsbase + (GYRO_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
OFFSET_SENSOR_DATA_DEFAULT;
memcpy_fromio(&gyro_data, sensoraddr, sizeof(struct sfh_gyro_data));
get_common_inputs(&gyro_input.common_property, report_id);
gyro_input.in_angel_x_value = float_to_int(gyro_data.gyrodata.x) / 1000;
gyro_input.in_angel_y_value = float_to_int(gyro_data.gyrodata.y) / 1000;
gyro_input.in_angel_z_value = float_to_int(gyro_data.gyrodata.z) / 1000;
memcpy(input_report, &gyro_input, sizeof(gyro_input));
report_size = sizeof(gyro_input);
break;
case MAG_IDX: /* magnetometer */
sensoraddr = mp2->vsbase + (MAG_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
OFFSET_SENSOR_DATA_DEFAULT;
memcpy_fromio(&mag_data, sensoraddr, sizeof(struct sfh_mag_data));
get_common_inputs(&magno_input.common_property, report_id);
magno_input.in_magno_x = float_to_int(mag_data.magdata.x) / 100;
magno_input.in_magno_y = float_to_int(mag_data.magdata.y) / 100;
magno_input.in_magno_z = float_to_int(mag_data.magdata.z) / 100;
magno_input.in_magno_accuracy = mag_data.accuracy / 100;
memcpy(input_report, &magno_input, sizeof(magno_input));
report_size = sizeof(magno_input);
break;
case ALS_IDX:
sensoraddr = mp2->vsbase + (ALS_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
OFFSET_SENSOR_DATA_DEFAULT;
memcpy_fromio(&als_data, sensoraddr, sizeof(struct sfh_als_data));
get_common_inputs(&als_input.common_property, report_id);
als_input.illuminance_value = float_to_int(als_data.lux);
memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
if (binfo.sbase.s_prop[ALS_IDX].sf.feat & 0x2)
als_input.light_color_temp = als_data.light_color_temp;
report_size = sizeof(als_input);
memcpy(input_report, &als_input, sizeof(als_input));
break;
case HPD_IDX:
get_common_inputs(&hpd_input.common_property, report_id);
hpdstatus.val = readl(mp2->mmio + AMD_C2P_MSG(4));
hpd_input.human_presence = hpdstatus.shpd.presence;
report_size = sizeof(hpd_input);
memcpy(input_report, &hpd_input, sizeof(hpd_input));
break;
}
return report_size;
}
static u32 get_desc_size(int sensor_idx, int descriptor_name)
{
switch (sensor_idx) {
case ACCEL_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(accel3_report_descriptor);
case input_size:
return sizeof(struct accel3_input_report);
case feature_size:
return sizeof(struct accel3_feature_report);
}
break;
case GYRO_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(gyro3_report_descriptor);
case input_size:
return sizeof(struct gyro_input_report);
case feature_size:
return sizeof(struct gyro_feature_report);
}
break;
case MAG_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(comp3_report_descriptor);
case input_size:
return sizeof(struct magno_input_report);
case feature_size:
return sizeof(struct magno_feature_report);
}
break;
case ALS_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(als_report_descriptor);
case input_size:
return sizeof(struct als_input_report);
case feature_size:
return sizeof(struct als_feature_report);
}
break;
case HPD_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(hpd_report_descriptor);
case input_size:
return sizeof(struct hpd_input_report);
case feature_size:
return sizeof(struct hpd_feature_report);
}
break;
}
return 0;
}
void amd_sfh1_1_set_desc_ops(struct amd_mp2_ops *mp2_ops)
{
mp2_ops->get_rep_desc = get_report_desc;
mp2_ops->get_feat_rep = get_feature_rep;
mp2_ops->get_desc_sz = get_desc_size;
mp2_ops->get_in_rep = get_input_rep;
}
|
