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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <ec/acpi/ec.h>
#include <stdint.h>
#include <string.h>
#include "ec.h"
#include "commands.h"
int wilco_ec_get_info(enum get_ec_info_cmd type, char *info)
{
struct ec_response_get_ec_info rsp;
if (!info)
return -1;
if (wilco_ec_sendrecv(KB_EC_INFO, type, &rsp, sizeof(rsp)) < 0)
return -1;
/* Copy returned string */
strncpy(info, rsp.data, sizeof(rsp.data));
return 0;
}
void wilco_ec_print_all_info(void)
{
char info[EC_INFO_MAX_SIZE];
if (!wilco_ec_get_info(GET_EC_LABEL, info))
printk(BIOS_INFO, "EC Label : %s\n", info);
if (!wilco_ec_get_info(GET_EC_SVN_REV, info))
printk(BIOS_INFO, "EC Revision : %s\n", info);
if (!wilco_ec_get_info(GET_EC_MODEL_NO, info))
printk(BIOS_INFO, "EC Model Num : %s\n", info);
if (!wilco_ec_get_info(GET_EC_BUILD_DATE, info))
printk(BIOS_INFO, "EC Build Date : %s\n", info);
}
static int wilco_ec_get_power_smi(struct ec_pm_event_state *pm)
{
struct ec_response_power_smi {
uint8_t pm_event_1;
uint8_t pm_state_1;
uint8_t hotkey;
uint8_t pm_state_2;
uint8_t pm_state_3;
uint8_t pm_state_4;
uint8_t pm_state_5;
uint8_t pm_event_2;
uint8_t pm_state_6;
} __packed rsp;
if (!pm)
return -1;
if (wilco_ec_sendrecv_noargs(KB_POWER_SMI, &rsp, sizeof(rsp)) < 0)
return -1;
pm->event[0] = rsp.pm_event_1;
pm->event[1] = rsp.pm_event_2;
pm->state[0] = rsp.pm_state_1;
pm->state[1] = rsp.pm_state_2;
pm->state[2] = rsp.pm_state_3;
pm->state[3] = rsp.pm_state_4;
pm->state[4] = rsp.pm_state_5;
pm->state[5] = rsp.pm_state_6;
pm->hotkey = rsp.hotkey;
return 0;
}
static int wilco_ec_get_power_status(struct ec_pm_event_state *pm)
{
struct ec_response_power_status {
uint8_t pm_state_1;
uint8_t pm_state_2;
uint8_t pm_state_3;
uint8_t pm_state_4;
uint8_t pm_state_5;
uint8_t ac_type_lsb;
uint8_t pm_state_6;
uint8_t pm_event_2;
uint8_t ac_type_msb;
} __packed rsp;
if (!pm)
return -1;
if (wilco_ec_sendrecv_noargs(KB_POWER_STATUS, &rsp, sizeof(rsp)) < 0)
return -1;
pm->hotkey = 0;
pm->event[0] = 0;
pm->event[1] = rsp.pm_event_2;
pm->state[0] = rsp.pm_state_1;
pm->state[1] = rsp.pm_state_2;
pm->state[2] = rsp.pm_state_3;
pm->state[3] = rsp.pm_state_4;
pm->state[4] = rsp.pm_state_5;
pm->state[5] = rsp.pm_state_6;
pm->ac_type = rsp.ac_type_msb << 8 | rsp.ac_type_lsb;
return 0;
}
int wilco_ec_get_pm(struct ec_pm_event_state *pm, bool clear)
{
if (clear)
return wilco_ec_get_power_smi(pm);
else
return wilco_ec_get_power_status(pm);
}
int wilco_ec_get_lid_state(void)
{
struct ec_pm_event_state pm;
if (wilco_ec_get_power_status(&pm) < 0)
return -1;
return !!(pm.state[0] & EC_PM1_LID_OPEN);
}
int wilco_ec_get_board_id(uint8_t *id)
{
return wilco_ec_mailbox(WILCO_EC_MSG_RAW, KB_BOARD_ID,
NULL, 0, id, sizeof(*id));
}
void wilco_ec_slp_en(void)
{
/* EC does not respond to this command */
if (wilco_ec_mailbox(WILCO_EC_MSG_NO_RESPONSE,
KB_SLP_EN, NULL, 0, NULL, 0) < 0)
printk(BIOS_ERR, "%s: command failed\n", __func__);
}
void wilco_ec_power_off(enum ec_power_off_reason reason)
{
/* EC does not respond to this command */
if (wilco_ec_mailbox(WILCO_EC_MSG_NO_RESPONSE,
KB_POWER_OFF, &reason, 1, NULL, 0) < 0)
printk(BIOS_ERR, "%s: command failed\n", __func__);
}
int wilco_ec_radio_control(enum ec_radio radio, uint8_t state)
{
uint8_t radio_control[3] = { radio, RADIO_WRITE, state };
return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_RADIO_CONTROL,
radio_control, ARRAY_SIZE(radio_control),
NULL, 0);
}
int wilco_ec_change_wake(uint8_t source, enum ec_wake_change change)
{
uint8_t wake_source[3] = { change, source };
return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ACPI_WAKEUP_CHANGE,
wake_source, ARRAY_SIZE(wake_source),
NULL, 0);
}
int wilco_ec_signed_fw(void)
{
ec_set_ports(CONFIG_EC_BASE_ACPI_COMMAND,
CONFIG_EC_BASE_ACPI_DATA);
return !!ec_read(EC_RAM_SIGNED_FW);
}
struct err_code_entry {
uint8_t post_code;
enum ec_err_code ec_err;
};
/*
* Any post codes not listed in the post_code_err_map[] use default.
*/
static const enum ec_err_code default_ec_err = DLED_ROM;
static const struct err_code_entry post_code_err_map[] = {
{ .post_code = POSTCODE_RAM_FAILURE, .ec_err = DLED_MEMORY, },
{ .post_code = POSTCODE_VIDEO_FAILURE, .ec_err = DLED_PANEL, },
};
/* Records the most recent post code during boot */
static uint8_t wilco_ec_saved_post_code;
void wilco_ec_save_post_code(uint8_t post_code)
{
wilco_ec_saved_post_code = post_code;
}
/* Send error code to the EC based on last saved post code */
void die_notify(void)
{
size_t i;
enum ec_err_code err_code = default_ec_err;
for (i = 0; i < ARRAY_SIZE(post_code_err_map); i++) {
if (post_code_err_map[i].post_code ==
wilco_ec_saved_post_code) {
err_code = post_code_err_map[i].ec_err;
break;
}
}
printk(BIOS_EMERG, "Fatal error: post_code 0x%02x, EC err 0x%02x\n",
wilco_ec_saved_post_code, err_code);
wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ERR_CODE,
&err_code, 1, NULL, 0);
}
/*
* EC CPU ID data struct
* MBOX[2] = 0xFF
* MBOX[3] = CPUID_Low
* MBOX[4] = CPUID_Mid
* MBOX[5] = CPUID_High
* MBOX[6] = CPU_Core
* MBOX[7] = GPU_Core
* MBOX[8] = Reserved
*/
int wilco_ec_set_cpuid(uint32_t cpuid, uint8_t cpu_cores, uint8_t gpu_cores)
{
uint8_t cpu_id[7] = {0}, i;
cpu_id[0] = 0xff;
for (i = 1; i < 4; i++) {
cpu_id[i] = cpuid & 0xff;
cpuid = cpuid >> 8;
}
cpu_id[4] = cpu_cores;
cpu_id[5] = gpu_cores;
return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_CPU_ID, cpu_id,
ARRAY_SIZE(cpu_id), NULL, 0);
}
|
