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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2011 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* (C) Copyright 2010
* Stefano Babic, DENX Software Engineering, sbabic@denx.de
*
* (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <command.h>
#include <log.h>
#include <malloc.h>
#include <linux/types.h>
#include <linux/list.h>
#include <power/pmic.h>
static LIST_HEAD(pmic_list);
int check_reg(struct pmic *p, u32 reg)
{
if (reg >= p->number_of_regs) {
printf("<reg num> = %d is invalid. Should be less than %d\n",
reg, p->number_of_regs);
return -EINVAL;
}
return 0;
}
int pmic_set_output(struct pmic *p, u32 reg, int out, int on)
{
u32 val;
if (pmic_reg_read(p, reg, &val))
return -ENOTSUPP;
if (on)
val |= out;
else
val &= ~out;
if (pmic_reg_write(p, reg, val))
return -ENOTSUPP;
return 0;
}
struct pmic *pmic_alloc(void)
{
struct pmic *p;
p = calloc(sizeof(*p), 1);
if (!p) {
printf("%s: No available memory for allocation!\n", __func__);
return NULL;
}
list_add_tail(&p->list, &pmic_list);
debug("%s: new pmic struct: 0x%p\n", __func__, p);
return p;
}
struct pmic *pmic_get(const char *s)
{
struct pmic *p;
list_for_each_entry(p, &pmic_list, list) {
if (strcmp(p->name, s) == 0) {
debug("%s: pmic %s -> 0x%p\n", __func__, p->name, p);
return p;
}
}
return NULL;
}
#ifndef CONFIG_SPL_BUILD
static int pmic_dump(struct pmic *p)
{
int i, ret;
u32 val;
if (!p) {
puts("Wrong PMIC name!\n");
return -ENODEV;
}
printf("PMIC: %s\n", p->name);
for (i = 0; i < p->number_of_regs; i++) {
ret = pmic_reg_read(p, i, &val);
if (ret)
puts("PMIC: Registers dump failed\n");
if (!(i % 8))
printf("\n0x%02x: ", i);
printf("%08x ", val);
}
puts("\n");
return 0;
}
static const char *power_get_interface(int interface)
{
const char *power_interface[] = {"I2C", "SPI", "|+|-|"};
return power_interface[interface];
}
static void pmic_list_names(void)
{
struct pmic *p;
puts("PMIC devices:\n");
list_for_each_entry(p, &pmic_list, list) {
printf("name: %s bus: %s_%d\n", p->name,
power_get_interface(p->interface), p->bus);
}
}
static int do_pmic(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
u32 ret, reg, val;
char *cmd, *name;
struct pmic *p;
/* at least two arguments please */
if (argc < 2)
return CMD_RET_USAGE;
if (strcmp(argv[1], "list") == 0) {
pmic_list_names();
return CMD_RET_SUCCESS;
}
if (argc < 3)
return CMD_RET_USAGE;
name = argv[1];
cmd = argv[2];
debug("%s: name: %s cmd: %s\n", __func__, name, cmd);
p = pmic_get(name);
if (!p)
return CMD_RET_FAILURE;
if (strcmp(cmd, "dump") == 0) {
if (pmic_dump(p))
return CMD_RET_FAILURE;
return CMD_RET_SUCCESS;
}
if (strcmp(cmd, "read") == 0) {
if (argc < 4)
return CMD_RET_USAGE;
reg = hextoul(argv[3], NULL);
ret = pmic_reg_read(p, reg, &val);
if (ret)
puts("PMIC: Register read failed\n");
printf("\n0x%02x: 0x%08x\n", reg, val);
return CMD_RET_SUCCESS;
}
if (strcmp(cmd, "write") == 0) {
if (argc < 5)
return CMD_RET_USAGE;
reg = hextoul(argv[3], NULL);
val = hextoul(argv[4], NULL);
pmic_reg_write(p, reg, val);
return CMD_RET_SUCCESS;
}
if (strcmp(cmd, "bat") == 0) {
if (argc < 4)
return CMD_RET_USAGE;
if (!p->pbat) {
printf("%s is not a battery\n", p->name);
return CMD_RET_FAILURE;
}
if (strcmp(argv[3], "state") == 0)
p->fg->fg_battery_check(p->pbat->fg, p);
if (strcmp(argv[3], "charge") == 0) {
printf("BAT: %s charging (ctrl+c to break)\n",
p->name);
if (p->low_power_mode)
p->low_power_mode();
if (p->pbat->battery_charge)
p->pbat->battery_charge(p);
}
return CMD_RET_SUCCESS;
}
/* No subcommand found */
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
pmic, CONFIG_SYS_MAXARGS, 1, do_pmic,
"PMIC",
"list - list available PMICs\n"
"pmic name dump - dump named PMIC registers\n"
"pmic name read <reg> - read register\n"
"pmic name write <reg> <value> - write register\n"
"pmic name bat state - write register\n"
"pmic name bat charge - write register\n"
);
#endif
|
