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
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
|
/* Copyright 2019 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.
*/
#include "adc.h"
#include "adc_chip.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_ramp.h"
#include "charge_state.h"
#include "charger.h"
#include "charger_mt6370.h"
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "driver/accelgyro_lsm6dsm.h"
#include "driver/charger/rt946x.h"
#include "driver/sync.h"
#include "driver/tcpm/mt6370.h"
#include "driver/usb_mux/it5205.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "i2c_bitbang.h"
#include "lid_switch.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "registers.h"
#include "spi.h"
#include "system.h"
#include "task.h"
#include "tcpm.h"
#include "timer.h"
#include "usb_charge.h"
#include "usb_mux.h"
#include "usb_pd_tcpm.h"
#include "util.h"
#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
static void tcpc_alert_event(enum gpio_signal signal)
{
schedule_deferred_pd_interrupt(0 /* port */);
}
#include "gpio_list.h"
/******************************************************************************/
/* ADC channels. Must be in the exactly same order as in enum adc_channel. */
const struct adc_t adc_channels[] = {
[ADC_BOARD_ID] = {"BOARD_ID", 3300, 4096, 0, STM32_AIN(10)},
[ADC_EC_SKU_ID] = {"EC_SKU_ID", 3300, 4096, 0, STM32_AIN(8)},
[ADC_POGO_ADC_INT_L] = {"POGO_ADC_INT_L", 3300, 4096, 0, STM32_AIN(6)},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
/******************************************************************************/
/* I2C ports */
const struct i2c_port_t i2c_ports[] = {
{"typec", 0, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
{"other", 1, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA,
.flags = I2C_PORT_FLAG_DYNAMIC_SPEED},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
const struct i2c_port_t i2c_bitbang_ports[] = {
{"battery", 2, 100, GPIO_I2C3_SCL, GPIO_I2C3_SDA, .drv = &bitbang_drv},
};
const unsigned int i2c_bitbang_ports_used = ARRAY_SIZE(i2c_bitbang_ports);
/* power signal list. Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
{GPIO_AP_IN_SLEEP_L, POWER_SIGNAL_ACTIVE_LOW, "AP_IN_S3_L"},
{GPIO_PMIC_EC_RESETB, POWER_SIGNAL_ACTIVE_HIGH, "PMIC_PWR_GOOD"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
/******************************************************************************/
/* SPI devices */
const struct spi_device_t spi_devices[] = {
};
const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);
/******************************************************************************/
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
{
.bus_type = EC_BUS_TYPE_I2C,
.i2c_info = {
.port = I2C_PORT_TCPC0,
.addr_flags = MT6370_TCPC_I2C_ADDR_FLAGS,
},
.drv = &mt6370_tcpm_drv,
},
};
struct mt6370_thermal_bound thermal_bound = {
.target = 75,
.err = 4,
};
static void board_hpd_status(const struct usb_mux *me,
int hpd_lvl, int hpd_irq)
{
/*
* svdm_dp_attention() did most of the work, we only need to notify
* host here.
*/
host_set_single_event(EC_HOST_EVENT_USB_MUX);
}
__override const struct rt946x_init_setting *board_rt946x_init_setting(void)
{
static const struct rt946x_init_setting battery_init_setting = {
.eoc_current = 150,
.mivr = 4000,
.ircmp_vclamp = 32,
.ircmp_res = 25,
.boost_voltage = 5050,
.boost_current = 1500,
};
return &battery_init_setting;
}
const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
{
.usb_port = 0,
.i2c_port = I2C_PORT_USB_MUX,
.i2c_addr_flags = IT5205_I2C_ADDR1_FLAGS,
.driver = &it5205_usb_mux_driver,
.hpd_update = &board_hpd_status,
},
};
uint16_t tcpc_get_alert_status(void)
{
uint16_t status = 0;
if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL))
status |= PD_STATUS_TCPC_ALERT_0;
return status;
}
static int force_discharge;
int board_set_active_charge_port(int charge_port)
{
CPRINTS("New chg p%d", charge_port);
/* ignore all request when discharge mode is on */
if (force_discharge && charge_port != CHARGE_PORT_NONE)
return EC_SUCCESS;
switch (charge_port) {
case CHARGE_PORT_USB_C:
/* Don't charge from a source port */
if (board_vbus_source_enabled(charge_port))
return -1;
break;
case CHARGE_PORT_NONE:
/*
* To ensure the fuel gauge (max17055) is always powered
* even when battery is disconnected, keep VBAT rail on but
* set the charging current to minimum.
*/
charger_set_current(0);
break;
default:
panic("Invalid charge port\n");
break;
}
return EC_SUCCESS;
}
int board_discharge_on_ac(int enable)
{
int ret, port;
if (enable) {
port = CHARGE_PORT_NONE;
} else {
/* restore the charge port state */
port = charge_manager_get_override();
if (port == OVERRIDE_OFF)
port = charge_manager_get_active_charge_port();
}
ret = charger_discharge_on_ac(enable);
if (ret)
return ret;
if (force_discharge && !enable)
rt946x_toggle_bc12_detection();
force_discharge = enable;
return board_set_active_charge_port(port);
}
int extpower_is_present(void)
{
/*
* The charger will indicate VBUS presence if we're sourcing 5V,
* so exclude such ports.
*/
int usb_c_extpower_present;
if (board_vbus_source_enabled(CHARGE_PORT_USB_C))
usb_c_extpower_present = 0;
else
usb_c_extpower_present = tcpm_get_vbus_level(CHARGE_PORT_USB_C);
return usb_c_extpower_present;
}
int pd_snk_is_vbus_provided(int port)
{
if (port)
panic("Invalid charge port\n");
return rt946x_is_vbus_ready();
}
#define CHARGER_I2C_ADDR_FLAGS RT946X_ADDR_FLAGS
static void board_init(void)
{
#ifdef SECTION_IS_RW
int val;
i2c_read8(I2C_PORT_CHARGER, CHARGER_I2C_ADDR_FLAGS,
RT946X_REG_CHGCTRL1, &val);
val &= RT946X_MASK_OPA_MODE;
i2c_write8(I2C_PORT_CHARGER, CHARGER_I2C_ADDR_FLAGS,
RT946X_REG_CHGCTRL1, (val | RT946X_MASK_STAT_EN));
#endif
/* If the reset cause is external, pulse PMIC force reset. */
if (system_get_reset_flags() == EC_RESET_FLAG_RESET_PIN) {
gpio_set_level(GPIO_PMIC_FORCE_RESET_ODL, 0);
msleep(100);
gpio_set_level(GPIO_PMIC_FORCE_RESET_ODL, 1);
}
/* Enable TCPC alert interrupts */
gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
/* Enable charger interrupts */
gpio_enable_interrupt(GPIO_CHARGER_INT_ODL);
#ifdef SECTION_IS_RW
/* Enable interrupts from BMI160 sensor. */
gpio_enable_interrupt(GPIO_ACCEL_INT_ODL);
/* Enable interrupt for the camera vsync. */
gpio_enable_interrupt(GPIO_SYNC_INT);
#endif /* SECTION_IS_RW */
/* Enable interrupt from PMIC. */
gpio_enable_interrupt(GPIO_PMIC_EC_RESETB);
/* reduce mt6370 db and bl driving capacity */
mt6370_reduce_db_bl_driving();
/* Display bias settings. */
mt6370_db_set_voltages(6000, 5800, 5800);
/*
* Fix backlight led maximum current:
* tolerance 120mA * 0.75 = 90mA.
* (b/133655155)
*/
mt6370_backlight_set_dim(MT6370_BLDIM_DEFAULT * 3 / 4);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
/*
* Re-configure i2c-2 to 100kHz for EVT devices, this must execute after
* i2c_init (in main()) and before battery fuel gauge access the battery
* (i.e. HOOK_PRIO_I2C + 1).
*
* Note that stm32f0 don't run adc_init in hooks, so we can safely call
* board_get_version() before HOOK_PRIO_INIT_ADC(=HOOK_PRIO_DEFAULT).
*/
static void board_i2c_init(void)
{
if (board_get_version() < 2)
i2c_set_freq(1, I2C_FREQ_100KHZ);
}
DECLARE_HOOK(HOOK_INIT, board_i2c_init, HOOK_PRIO_INIT_I2C);
/* Motion sensors */
/* Mutexes */
#ifdef SECTION_IS_RW
static struct mutex g_lid_mutex;
static struct lsm6dsm_data lsm6dsm_data = LSM6DSM_DATA;
/* Matrix to rotate accelerometer into standard reference frame */
static const mat33_fp_t lid_standard_ref = {
{0, FLOAT_TO_FP(1), 0},
{FLOAT_TO_FP(-1), 0, 0},
{0, 0, FLOAT_TO_FP(1)}
};
struct motion_sensor_t motion_sensors[] = {
[LID_ACCEL] = {
.name = "Accel",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_LSM6DSM,
.type = MOTIONSENSE_TYPE_ACCEL,
.location = MOTIONSENSE_LOC_LID,
.drv = &lsm6dsm_drv,
.mutex = &g_lid_mutex,
.drv_data = LSM6DSM_ST_DATA(lsm6dsm_data, MOTIONSENSE_TYPE_ACCEL),
.int_signal = GPIO_ACCEL_INT_ODL,
.flags = MOTIONSENSE_FLAG_INT_SIGNAL,
.port = I2C_PORT_ACCEL,
.i2c_spi_addr_flags = LSM6DSM_ADDR0_FLAGS,
.rot_standard_ref = &lid_standard_ref,
.default_range = 4, /* g, to meet CDD 7.3.1/C-1-4 reqs */
.min_frequency = LSM6DSM_ODR_MIN_VAL,
.max_frequency = LSM6DSM_ODR_MAX_VAL,
.config = {
/* Enable accel in S0 */
[SENSOR_CONFIG_EC_S0] = {
.odr = 13000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
},
},
[LID_GYRO] = {
.name = "Gyro",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_LSM6DSM,
.type = MOTIONSENSE_TYPE_GYRO,
.location = MOTIONSENSE_LOC_LID,
.drv = &lsm6dsm_drv,
.mutex = &g_lid_mutex,
.drv_data = LSM6DSM_ST_DATA(lsm6dsm_data, MOTIONSENSE_TYPE_GYRO),
.port = I2C_PORT_ACCEL,
.i2c_spi_addr_flags = LSM6DSM_ADDR0_FLAGS,
.default_range = 1000 | ROUND_UP_FLAG, /* dps */
.rot_standard_ref = &lid_standard_ref,
.min_frequency = LSM6DSM_ODR_MIN_VAL,
.max_frequency = LSM6DSM_ODR_MAX_VAL,
},
[VSYNC] = {
.name = "Camera vsync",
.active_mask = SENSOR_ACTIVE_S0,
.chip = MOTIONSENSE_CHIP_GPIO,
.type = MOTIONSENSE_TYPE_SYNC,
.location = MOTIONSENSE_LOC_CAMERA,
.drv = &sync_drv,
.default_range = 0,
.min_frequency = 0,
.max_frequency = 1,
},
};
const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
#endif /* SECTION_IS_RW */
void usb_charger_set_switches(int port, enum usb_switch setting)
{
}
/*
* Return if VBUS is sagging too low
*/
int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
{
int voltage;
/*
* Though we have a more tolerant range (3.9V~13.4V), setting 4400 to
* prevent from a bad charger crashed.
*
* TODO(b:131284131): mt6370 VBUS reading is not accurate currently.
* Vendor will provide a workaround solution to fix the gap between ADC
* reading and actual voltage. After the workaround applied, we could
* try to raise this value to 4600. (when it says it read 4400, it is
* actually close to 4600)
*/
if (charger_get_vbus_voltage(port, &voltage))
voltage = 0;
return voltage < 4400;
}
int board_get_battery_i2c(void)
{
return board_get_version() >= 2 ? 2 : 1;
}
|