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
|
/* Copyright 2018 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Battery pack vendor provided charging profile
*/
#include "battery_fuel_gauge.h"
#include "charge_state.h"
#include "chipset.h"
#include "common.h"
#include "hooks.h"
#include "usb_pd.h"
/*
* Battery info for all Liara battery types. Note that the fields
* start_charging_min/max and charging_min/max are not used for the charger.
* The effective temperature limits are given by discharging_min/max_c.
*
* Fuel Gauge (FG) parameters which are used for determining if the battery
* is connected, the appropriate ship mode (battery cutoff) command, and the
* charge/discharge FETs status.
*
* Ship mode (battery cutoff) requires 2 writes to the appropriate smart battery
* register. For some batteries, the charge/discharge FET bits are set when
* charging/discharging is active, in other types, these bits set mean that
* charging/discharging is disabled. Therefore, in addition to the mask for
* these bits, a disconnect value must be specified. Note that for TI fuel
* gauge, the charge/discharge FET status is found in Operation Status (0x54),
* but a read of Manufacturer Access (0x00) will return the lower 16 bits of
* Operation status which contains the FET status bits.
*
* The assumption for battery types supported is that the charge/discharge FET
* status can be read with a sb_read() command and therefore, only the register
* address, mask, and disconnect value need to be provided.
*/
const struct board_batt_params board_battery_info[] = {
/*
* Panasonic AP15O5L battery information from the Grunt reference
* design.
*/
[BATTERY_PANASONIC] = {
.fuel_gauge = {
.manuf_name = "PANASONIC",
.ship_mode = {
.reg_addr = 0x3A,
.reg_data = { 0xC574, 0xC574 },
},
.fet = {
.reg_addr = 0x0,
.reg_mask = 0x4000,
.disconnect_val = 0x0,
},
.imbalance_mv = battery_default_imbalance_mv,
},
.batt_info = {
.voltage_max = 13200,
.voltage_normal = 11550, /* mV */
.voltage_min = 9000, /* mV */
.precharge_current = 256, /* mA */
.start_charging_min_c = 0,
.start_charging_max_c = 50,
.charging_min_c = 0,
.charging_max_c = 60,
.discharging_min_c = 0,
.discharging_max_c = 60,
},
},
/*
* Sunwoda 2018 Battery Information for Liara.
* Gauge IC: TI BQ40Z697A
*/
[BATTERY_SUNWODA] = {
.fuel_gauge = {
.manuf_name = "Sunwoda 2018",
.ship_mode = {
.reg_addr = 0x00,
.reg_data = { 0x0010, 0x0010 },
},
.fet = {
.mfgacc_support = 1,
.reg_addr = 0x0000,
.reg_mask = 0x6000,
.disconnect_val = 0x6000,
},
.imbalance_mv = battery_bq4050_imbalance_mv,
},
.batt_info = {
.voltage_max = 13200,
.voltage_normal = 11520, /* mV */
.voltage_min = 9000, /* mV */
.precharge_current = 256, /* mA */
.start_charging_min_c = 0,
.start_charging_max_c = 50,
.charging_min_c = 0,
.charging_max_c = 60,
.discharging_min_c = -20,
.discharging_max_c = 70,
},
},
/*
* Simplo 2018 Battery Information for Liara
* Gauge IC: TI BQ40Z695A
*/
[BATTERY_SIMPLO] = {
.fuel_gauge = {
.manuf_name = "SMP2018",
.ship_mode = {
.reg_addr = 0x00,
.reg_data = { 0x0010, 0x0010 },
},
.fet = {
.mfgacc_support = 1,
.reg_addr = 0x0000,
.reg_mask = 0x6000,
.disconnect_val = 0x6000,
},
.imbalance_mv = battery_bq4050_imbalance_mv,
},
.batt_info = {
.voltage_max = 13200,
.voltage_normal = 11520, /* mV */
.voltage_min = 9000, /* mV */
.precharge_current = 256, /* mA */
.start_charging_min_c = 0,
.start_charging_max_c = 50,
.charging_min_c = 0,
.charging_max_c = 60,
.discharging_min_c = -20,
.discharging_max_c = 70,
},
},
/*
* LGC 2018 Battery Information for Liara
* Gauge IC: Renesas RAJ240047A20DNP
*/
[BATTERY_LGC] = {
.fuel_gauge = {
.manuf_name = "LGC2018",
.ship_mode = {
.reg_addr = 0x34,
.reg_data = { 0x0000, 0x1000 },
},
.fet = {
.reg_addr = 0x0,
.reg_mask = 0x0010,
.disconnect_val = 0x0,
},
.imbalance_mv = battery_default_imbalance_mv,
},
.batt_info = {
.voltage_max = 13200,
.voltage_normal = 11520, /* mV */
.voltage_min = 9000, /* mV */
.precharge_current = 256, /* mA */
.start_charging_min_c = 0,
.start_charging_max_c = 50,
.charging_min_c = 0,
.charging_max_c = 60,
.discharging_min_c = -20,
.discharging_max_c = 70,
},
},
};
BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT);
const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_PANASONIC;
/* Lower our input voltage to 5V in S5/G3 when battery is full. */
static void reduce_input_voltage_when_full(void)
{
int max_pd_voltage_mv;
int port;
if (charge_get_percent() == 100 &&
chipset_in_or_transitioning_to_state(CHIPSET_STATE_ANY_OFF))
max_pd_voltage_mv = 5000;
else
max_pd_voltage_mv = PD_MAX_VOLTAGE_MV;
if (pd_get_max_voltage() != max_pd_voltage_mv) {
for (port = 0; port < CONFIG_USB_PD_PORT_MAX_COUNT; port++)
pd_set_external_voltage_limit(port, max_pd_voltage_mv);
}
}
DECLARE_HOOK(HOOK_BATTERY_SOC_CHANGE, reduce_input_voltage_when_full,
HOOK_PRIO_DEFAULT);
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, reduce_input_voltage_when_full,
HOOK_PRIO_DEFAULT);
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, reduce_input_voltage_when_full,
HOOK_PRIO_DEFAULT);
|
