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
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
|
/* Copyright 2017 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.
*/
/* reef_it8320 board-specific configuration */
#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 "chipset.h"
#include "console.h"
#include "driver/charger/bd9995x.h"
#include "driver/tcpm/it83xx_pd.h"
#include "driver/tcpm/tcpm.h"
#include "extpower.h"
#include "ec2i_chip.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "intc.h"
#include "keyboard_scan.h"
#include "lid_angle.h"
#include "lid_switch.h"
#include "math_util.h"
#include "motion_sense.h"
#include "motion_lid.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "spi.h"
#include "switch.h"
#include "system.h"
#include "tablet_mode.h"
#include "task.h"
#include "temp_sensor.h"
#include "thermistor.h"
#include "timer.h"
#include "uart.h"
#include "usb_charge.h"
#include "usb_mux.h"
#include "usb_pd.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)
#define IN_ALL_SYS_PG POWER_SIGNAL_MASK(X86_ALL_SYS_PG)
#define IN_PGOOD_PP3300 POWER_SIGNAL_MASK(X86_PGOOD_PP3300)
#define IN_PGOOD_PP5000 POWER_SIGNAL_MASK(X86_PGOOD_PP5000)
#include "gpio_list.h"
/* power signal list. Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
#ifdef CONFIG_POWER_S0IX
{GPIO_PCH_SLP_S0_L,
POWER_SIGNAL_ACTIVE_HIGH | POWER_SIGNAL_DISABLE_AT_BOOT,
"SLP_S0_DEASSERTED"},
#endif
{GPIO_RSMRST_L_PGOOD, POWER_SIGNAL_ACTIVE_HIGH, "RSMRST_L"},
{GPIO_PCH_SLP_S3_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S3_DEASSERTED"},
{GPIO_PCH_SLP_S4_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S4_DEASSERTED"},
{GPIO_SUSPWRNACK, POWER_SIGNAL_ACTIVE_HIGH,
"SUSPWRNACK_DEASSERTED"},
{GPIO_ALL_SYS_PGOOD, POWER_SIGNAL_ACTIVE_HIGH, "ALL_SYS_PGOOD"},
{GPIO_PP3300_PG, POWER_SIGNAL_ACTIVE_HIGH, "PP3300_PG"},
{GPIO_PP5000_PG, POWER_SIGNAL_ACTIVE_HIGH, "PP5000_PG"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
/* ADC channels */
const struct adc_t adc_channels[] = {
/* Convert to mV (3000mV/1024). */
{"CHARGER", 3000, 1024, 0, 1}, /* GPI1 */
{"AMBIENT", 3000, 1024, 0, 2}, /* GPI2 */
{"BRD_ID", 3000, 1024, 0, 3}, /* GPI3 */
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
const struct i2c_port_t i2c_ports[] = {
{"mux", IT83XX_I2C_CH_C, 400,
GPIO_EC_I2C_C_SCL, GPIO_EC_I2C_C_SDA},
{"batt", IT83XX_I2C_CH_E, 100,
GPIO_EC_I2C_E_SCL, GPIO_EC_I2C_E_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
{-1, -1, &it83xx_tcpm_drv, 0},
{-1, -1, &it83xx_tcpm_drv, 0},
};
void board_pd_vconn_ctrl(int port, int cc_pin, int enabled)
{
int cc1_enabled = 0, cc2_enabled = 0;
if (cc_pin)
cc2_enabled = enabled;
else
cc1_enabled = enabled;
if (port) {
gpio_set_level(GPIO_USB_C1_CC2_VCONN_EN, cc2_enabled);
gpio_set_level(GPIO_USB_C1_CC1_VCONN_EN, cc1_enabled);
} else {
gpio_set_level(GPIO_USB_C0_CC2_VCONN_EN, !cc2_enabled);
gpio_set_level(GPIO_USB_C0_CC1_VCONN_EN, !cc1_enabled);
}
}
/*
* PD host event status for host command
* Note: this variable must be aligned on 4-byte boundary because we pass the
* address to atomic_ functions which use assembly to access them.
*/
static uint32_t pd_host_event_status __aligned(4);
static int hc_pd_host_event_status(struct host_cmd_handler_args *args)
{
struct ec_response_host_event_status *r = args->response;
/* Read and clear the host event status to return to AP */
r->status = atomic_read_clear(&pd_host_event_status);
args->response_size = sizeof(*r);
return EC_RES_SUCCESS;
}
DECLARE_HOST_COMMAND(EC_CMD_PD_HOST_EVENT_STATUS, hc_pd_host_event_status,
EC_VER_MASK(0));
/* Send host event up to AP */
void pd_send_host_event(int mask)
{
/* mask must be set */
if (!mask)
return;
atomic_or(&pd_host_event_status, mask);
/* interrupt the AP */
host_set_single_event(EC_HOST_EVENT_PD_MCU);
}
const enum gpio_signal hibernate_wake_pins[] = {
GPIO_AC_PRESENT,
GPIO_LID_OPEN,
GPIO_POWER_BUTTON_L,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);
static void it83xx_tcpc_update_hpd_status(int port, int hpd_lvl, int hpd_irq)
{
enum gpio_signal gpio =
port ? GPIO_USB_C1_HPD_1P8_ODL : GPIO_USB_C0_HPD_1P8_ODL;
hpd_lvl = !hpd_lvl;
gpio_set_level(gpio, hpd_lvl);
if (hpd_irq) {
gpio_set_level(gpio, 1);
msleep(1);
gpio_set_level(gpio, hpd_lvl);
}
}
struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
{
.port_addr = 0xa8,
.driver = &pi3usb30532_usb_mux_driver,
.hpd_update = &it83xx_tcpc_update_hpd_status,
},
{
.port_addr = 0x20,
.driver = &ps874x_usb_mux_driver,
.hpd_update = &it83xx_tcpc_update_hpd_status,
},
};
const int usb_port_enable[CONFIG_USB_PORT_POWER_SMART_PORT_COUNT] = {
GPIO_USB1_ENABLE,
};
/*
* Data derived from Seinhart-Hart equation in a resistor divider circuit with
* Vdd=3300mV, R = 13.7Kohm, and Murata NCP15WB-series thermistor (B = 4050,
* T0 = 298.15, nominal resistance (R0) = 47Kohm).
*/
#define CHARGER_THERMISTOR_SCALING_FACTOR 13
static const struct thermistor_data_pair charger_thermistor_data[] = {
{ 3044 / CHARGER_THERMISTOR_SCALING_FACTOR, 0 },
{ 2890 / CHARGER_THERMISTOR_SCALING_FACTOR, 10 },
{ 2680 / CHARGER_THERMISTOR_SCALING_FACTOR, 20 },
{ 2418 / CHARGER_THERMISTOR_SCALING_FACTOR, 30 },
{ 2117 / CHARGER_THERMISTOR_SCALING_FACTOR, 40 },
{ 1800 / CHARGER_THERMISTOR_SCALING_FACTOR, 50 },
{ 1490 / CHARGER_THERMISTOR_SCALING_FACTOR, 60 },
{ 1208 / CHARGER_THERMISTOR_SCALING_FACTOR, 70 },
{ 966 / CHARGER_THERMISTOR_SCALING_FACTOR, 80 },
{ 860 / CHARGER_THERMISTOR_SCALING_FACTOR, 85 },
{ 766 / CHARGER_THERMISTOR_SCALING_FACTOR, 90 },
{ 679 / CHARGER_THERMISTOR_SCALING_FACTOR, 95 },
{ 603 / CHARGER_THERMISTOR_SCALING_FACTOR, 100 },
};
static const struct thermistor_info charger_thermistor_info = {
.scaling_factor = CHARGER_THERMISTOR_SCALING_FACTOR,
.num_pairs = ARRAY_SIZE(charger_thermistor_data),
.data = charger_thermistor_data,
};
int board_get_charger_temp(int idx, int *temp_ptr)
{
int mv = adc_read_channel(ADC_TEMP_SENSOR_CHARGER);
if (mv < 0)
return -1;
*temp_ptr = thermistor_linear_interpolate(mv, &charger_thermistor_info);
*temp_ptr = C_TO_K(*temp_ptr);
return 0;
}
/*
* Data derived from Seinhart-Hart equation in a resistor divider circuit with
* Vdd=3300mV, R = 51.1Kohm, and Murata NCP15WB-series thermistor (B = 4050,
* T0 = 298.15, nominal resistance (R0) = 47Kohm).
*/
#define AMB_THERMISTOR_SCALING_FACTOR 11
static const struct thermistor_data_pair amb_thermistor_data[] = {
{ 2512 / AMB_THERMISTOR_SCALING_FACTOR, 0 },
{ 2158 / AMB_THERMISTOR_SCALING_FACTOR, 10 },
{ 1772 / AMB_THERMISTOR_SCALING_FACTOR, 20 },
{ 1398 / AMB_THERMISTOR_SCALING_FACTOR, 30 },
{ 1070 / AMB_THERMISTOR_SCALING_FACTOR, 40 },
{ 803 / AMB_THERMISTOR_SCALING_FACTOR, 50 },
{ 597 / AMB_THERMISTOR_SCALING_FACTOR, 60 },
{ 443 / AMB_THERMISTOR_SCALING_FACTOR, 70 },
{ 329 / AMB_THERMISTOR_SCALING_FACTOR, 80 },
{ 285 / AMB_THERMISTOR_SCALING_FACTOR, 85 },
{ 247 / AMB_THERMISTOR_SCALING_FACTOR, 90 },
{ 214 / AMB_THERMISTOR_SCALING_FACTOR, 95 },
{ 187 / AMB_THERMISTOR_SCALING_FACTOR, 100 },
};
static const struct thermistor_info amb_thermistor_info = {
.scaling_factor = AMB_THERMISTOR_SCALING_FACTOR,
.num_pairs = ARRAY_SIZE(amb_thermistor_data),
.data = amb_thermistor_data,
};
int board_get_ambient_temp(int idx, int *temp_ptr)
{
int mv = adc_read_channel(ADC_TEMP_SENSOR_AMB);
if (mv < 0)
return -1;
*temp_ptr = thermistor_linear_interpolate(mv, &amb_thermistor_info);
*temp_ptr = C_TO_K(*temp_ptr);
return 0;
}
const struct temp_sensor_t temp_sensors[] = {
/* FIXME(dhendrix): tweak action_delay_sec */
{"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, 0, 1},
{"Ambient", TEMP_SENSOR_TYPE_BOARD, board_get_ambient_temp, 0, 5},
{"Charger", TEMP_SENSOR_TYPE_BOARD, board_get_charger_temp, 1, 1},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
const struct button_config buttons[CONFIG_BUTTON_COUNT] = {
{"Volume Down", KEYBOARD_BUTTON_VOLUME_DOWN, GPIO_EC_VOLDN_BTN_ODL,
30 * MSEC, 0},
{"Volume Up", KEYBOARD_BUTTON_VOLUME_UP, GPIO_EC_VOLUP_BTN_ODL,
30 * MSEC, 0},
};
/* Called by APL power state machine when transitioning from G3 to S5 */
static void chipset_pre_init(void)
{
/*
* No need to re-init PMIC since settings are sticky across sysjump.
* However, be sure to check that PMIC is already enabled. If it is
* then there's no need to re-sequence the PMIC.
*/
if (system_jumped_to_this_image() && gpio_get_level(GPIO_PMIC_EN))
return;
/* Enable PP5000 before PP3300 due to NFC: chrome-os-partner:50807 */
gpio_set_level(GPIO_EN_PP5000, 1);
while (!gpio_get_level(GPIO_PP5000_PG))
;
/*
* To prevent SLP glitches, PMIC_EN (V5A_EN) should be enabled
* at the same time as PP3300 (chrome-os-partner:51323).
*/
/* Enable 3.3V rail */
gpio_set_level(GPIO_EN_PP3300, 1);
while (!gpio_get_level(GPIO_PP3300_PG))
;
/* Enable PMIC */
gpio_set_level(GPIO_PMIC_EN, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_PRE_INIT, chipset_pre_init, HOOK_PRIO_DEFAULT);
static void board_set_tablet_mode(void)
{
/*
* Always report device isn't in tablet mode because
* our id is clamshell and no TABLET_MODE_L pin
*/
tablet_set_mode(0);
}
/* Initialize board. */
static void board_init(void)
{
int port;
board_set_tablet_mode();
/* Enable charger interrupts */
gpio_enable_interrupt(GPIO_CHARGER_INT_L);
/*
* Initialize HPD to low; after sysjump SOC needs to see
* HPD pulse to enable video path
*/
for (port = 0; port < CONFIG_USB_PD_PORT_COUNT; port++)
usb_muxes[port].hpd_update(port, 0, 0);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_INIT_I2C + 1);
int pd_snk_is_vbus_provided(int port)
{
enum bd9995x_charge_port bd9995x_port = 0;
switch (port) {
case 0:
case 1:
bd9995x_port = bd9995x_pd_port_to_chg_port(port);
break;
default:
panic("Invalid charge port\n");
break;
}
return bd9995x_is_vbus_provided(bd9995x_port);
}
/**
* Set active charge port -- only one port can be active at a time.
*
* @param charge_port Charge port to enable.
*
* Returns EC_SUCCESS if charge port is accepted and made active,
* EC_ERROR_* otherwise.
*/
int board_set_active_charge_port(int charge_port)
{
enum bd9995x_charge_port bd9995x_port = 0;
int bd9995x_port_select = 1;
switch (charge_port) {
case 0:
case 1:
/* Don't charge from a source port */
if (board_vbus_source_enabled(charge_port))
return -1;
bd9995x_port = bd9995x_pd_port_to_chg_port(charge_port);
break;
case CHARGE_PORT_NONE:
bd9995x_port_select = 0;
bd9995x_port = BD9995X_CHARGE_PORT_BOTH;
/*
* To avoid inrush current from the external charger, enable
* discharge on AC till the new charger is detected and
* charge detect delay has passed.
*/
if (charge_get_percent() > 2)
charger_discharge_on_ac(1);
break;
default:
panic("Invalid charge port\n");
break;
}
CPRINTS("New chg p%d", charge_port);
return bd9995x_select_input_port(bd9995x_port, bd9995x_port_select);
}
/**
* Set the charge limit based upon desired maximum.
*
* @param port Port number.
* @param supplier Charge supplier type.
* @param charge_ma Desired charge limit (mA).
* @param charge_mv Negotiated charge voltage (mV).
*/
void board_set_charge_limit(int port, int supplier, int charge_ma,
int max_ma, int charge_mv)
{
/* Enable charging trigger by BC1.2 detection */
int bc12_enable = (supplier == CHARGE_SUPPLIER_BC12_CDP ||
supplier == CHARGE_SUPPLIER_BC12_DCP ||
supplier == CHARGE_SUPPLIER_BC12_SDP ||
supplier == CHARGE_SUPPLIER_OTHER);
if (bd9995x_bc12_enable_charging(port, bc12_enable))
return;
charge_ma = (charge_ma * 95) / 100;
charge_set_input_current_limit(MAX(charge_ma,
CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
}
/**
* Return if VBUS is sagging too low
*/
int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
{
return charger_get_vbus_voltage(port) < BD9995X_BC12_MIN_VOLTAGE;
}
/* Called on AP S5 -> S3 transition */
static void board_chipset_startup(void)
{
/* Enable USB-A port. */
gpio_set_level(GPIO_USB1_ENABLE, 1);
/* Enable Trackpad */
gpio_set_level(GPIO_EN_P3300_TRACKPAD_ODL, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT);
/* Called on AP S3 -> S5 transition */
static void board_chipset_shutdown(void)
{
/* Disable USB-A port. */
gpio_set_level(GPIO_USB1_ENABLE, 0);
/* Disable Trackpad */
gpio_set_level(GPIO_EN_P3300_TRACKPAD_ODL, 1);
/* FIXME(dhendrix): Drive USB_PD_RST_ODL low to prevent
* leakage? (see comment in schematic)
*/
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);
/* FIXME(dhendrix): Add CHIPSET_RESUME and CHIPSET_SUSPEND
* hooks to enable/disable sensors?
*/
/* Called on AP S3 -> S0 transition */
static void board_chipset_resume(void)
{
gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
/* Called on AP S0 -> S3 transition */
static void board_chipset_suspend(void)
{
gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);
/*
* FIXME(dhendrix): Weak symbol hack until we can get a better solution for
* both Amenia and Reef.
*/
void chipset_do_shutdown(void)
{
/* Disable PMIC */
gpio_set_level(GPIO_PMIC_EN, 0);
/*Disable 3.3V rail */
gpio_set_level(GPIO_EN_PP3300, 0);
while (gpio_get_level(GPIO_PP3300_PG))
;
/*Disable 5V rail */
gpio_set_level(GPIO_EN_PP5000, 0);
while (gpio_get_level(GPIO_PP5000_PG))
;
}
void board_hibernate_late(void)
{
int i;
const uint32_t hibernate_pins[][2] = {
/* Turn off LEDs in hibernate */
{GPIO_BAT_LED_BLUE, GPIO_INPUT | GPIO_PULL_UP},
{GPIO_BAT_LED_AMBER, GPIO_INPUT | GPIO_PULL_UP},
{GPIO_LID_OPEN, GPIO_INT_RISING | GPIO_PULL_DOWN},
/*
* BD99956 handles charge input automatically. We'll disable
* charge output in hibernate. Charger will assert ACOK_OD
* when VBUS or VCC are plugged in.
*/
{GPIO_USB_C0_5V_EN, GPIO_INPUT | GPIO_PULL_DOWN},
{GPIO_USB_C1_5V_EN, GPIO_INPUT | GPIO_PULL_DOWN},
};
/* Change GPIOs' state in hibernate for better power consumption */
for (i = 0; i < ARRAY_SIZE(hibernate_pins); ++i)
gpio_set_flags(hibernate_pins[i][0], hibernate_pins[i][1]);
}
void board_hibernate(void)
{
/*
* To support hibernate called from console commands, ectool commands
* and key sequence, shutdown the AP before hibernating.
*/
chipset_do_shutdown();
/* Added delay to allow AP to settle down */
msleep(100);
/* Enable both the VBUS & VCC ports before entering PG3 */
bd9995x_select_input_port(BD9995X_CHARGE_PORT_BOTH, 1);
/* Turn BGATE OFF for saving the power */
bd9995x_set_power_save_mode(BD9995X_PWR_SAVE_MAX);
}
struct {
enum reef_it8320_board_version version;
int thresh_mv;
} const reef_it8320_board_versions[] = {
/* Vin = 3.3V, R1 = 46.4K, R2 values listed below */
{ BOARD_VERSION_1, 328 * 1.03 }, /* 5.11 Kohm */
{ BOARD_VERSION_2, 670 * 1.03 }, /* 11.8 Kohm */
{ BOARD_VERSION_3, 1012 * 1.03 }, /* 20.5 Kohm */
{ BOARD_VERSION_4, 1357 * 1.03 }, /* 32.4 Kohm */
{ BOARD_VERSION_5, 1690 * 1.03 }, /* 48.7 Kohm */
{ BOARD_VERSION_6, 2020 * 1.03 }, /* 73.2 Kohm */
{ BOARD_VERSION_7, 2352 * 1.03 }, /* 115 Kohm */
{ BOARD_VERSION_8, 2802 * 1.03 }, /* 261 Kohm */
};
BUILD_ASSERT(ARRAY_SIZE(reef_it8320_board_versions) == BOARD_VERSION_COUNT);
int board_get_version(void)
{
static int version = BOARD_VERSION_UNKNOWN;
int mv, i;
if (version != BOARD_VERSION_UNKNOWN)
return version;
/* FIXME(dhendrix): enable ADC */
gpio_set_flags(GPIO_EC_BRD_ID_EN_ODL, GPIO_ODR_HIGH);
gpio_set_level(GPIO_EC_BRD_ID_EN_ODL, 0);
/* Wait to allow cap charge */
msleep(1);
mv = adc_read_channel(ADC_BOARD_ID);
/* FIXME(dhendrix): disable ADC */
gpio_set_level(GPIO_EC_BRD_ID_EN_ODL, 1);
gpio_set_flags(GPIO_EC_BRD_ID_EN_ODL, GPIO_INPUT);
if (mv == ADC_READ_ERROR) {
version = BOARD_VERSION_UNKNOWN;
return version;
}
for (i = 0; i < BOARD_VERSION_COUNT; i++) {
if (mv < reef_it8320_board_versions[i].thresh_mv) {
version = reef_it8320_board_versions[i].version;
break;
}
}
CPRINTS("Board version: %d", version);
return version;
}
/* Keyboard scan setting */
struct keyboard_scan_config keyscan_config = {
/*
* F3 key scan cycle completed but scan input is not
* charging to logic high when EC start scan next
* column for "T" key, so we set .output_settle_us
* to 80us from 50us.
*/
.output_settle_us = 80,
.debounce_down_us = 9 * MSEC,
.debounce_up_us = 30 * MSEC,
.scan_period_us = 3 * MSEC,
.min_post_scan_delay_us = 1000,
.poll_timeout_us = 100 * MSEC,
.actual_key_mask = {
0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca /* full set */
},
};
/* PNPCFG settings */
const struct ec2i_t pnpcfg_settings[] = {
/* Select logical device 06h(keyboard) */
{HOST_INDEX_LDN, LDN_KBC_KEYBOARD},
/* Set IRQ=01h for logical device */
{HOST_INDEX_IRQNUMX, 0x01},
/* Enable logical device */
{HOST_INDEX_LDA, 0x01},
/* Select logical device 05h(mouse) */
{HOST_INDEX_LDN, LDN_KBC_MOUSE},
/* Set IRQ=0Ch for logical device */
{HOST_INDEX_IRQNUMX, 0x0C},
/* Enable logical device */
{HOST_INDEX_LDA, 0x01},
/* Select logical device 11h(PM1 ACPI) */
{HOST_INDEX_LDN, LDN_PMC1},
/* Set IRQ=00h for logical device */
{HOST_INDEX_IRQNUMX, 0x00},
/* Enable logical device */
{HOST_INDEX_LDA, 0x01},
/* Select logical device 12h(PM2) */
{HOST_INDEX_LDN, LDN_PMC2},
/* I/O Port Base Address 200h/204h */
{HOST_INDEX_IOBAD0_MSB, 0x02},
{HOST_INDEX_IOBAD0_LSB, 0x00},
{HOST_INDEX_IOBAD1_MSB, 0x02},
{HOST_INDEX_IOBAD1_LSB, 0x04},
/* Set IRQ=00h for logical device */
{HOST_INDEX_IRQNUMX, 0x00},
/* Enable logical device */
{HOST_INDEX_LDA, 0x01},
/* Select logical device 0Fh(SMFI) */
{HOST_INDEX_LDN, LDN_SMFI},
/* H2RAM LPC I/O cycle Dxxx */
{HOST_INDEX_DSLDC6, 0x00},
/* Enable H2RAM LPC I/O cycle */
{HOST_INDEX_DSLDC7, 0x01},
/* Enable logical device */
{HOST_INDEX_LDA, 0x01},
/* Select logical device 17h(PM3) */
{HOST_INDEX_LDN, LDN_PMC3},
/* I/O Port Base Address 80h */
{HOST_INDEX_IOBAD0_MSB, 0x00},
{HOST_INDEX_IOBAD0_LSB, 0x80},
{HOST_INDEX_IOBAD1_MSB, 0x00},
{HOST_INDEX_IOBAD1_LSB, 0x00},
/* Set IRQ=00h for logical device */
{HOST_INDEX_IRQNUMX, 0x00},
/* Enable logical device */
{HOST_INDEX_LDA, 0x01},
/* Select logical device 10h(RTCT) */
{HOST_INDEX_LDN, LDN_RTCT},
/* P80L Begin Index */
{HOST_INDEX_DSLDC4, P80L_P80LB},
/* P80L End Index */
{HOST_INDEX_DSLDC5, P80L_P80LE},
/* P80L Current Index */
{HOST_INDEX_DSLDC6, P80L_P80LC},
#ifdef CONFIG_UART_HOST
/* Select logical device 2h(UART2) */
{HOST_INDEX_LDN, LDN_UART2},
/*
* I/O port base address is 2F8h.
* Host can use LPC I/O port 0x2F8 ~ 0x2FF to access UART2.
* See specification 7.24.4 for more detial.
*/
{HOST_INDEX_IOBAD0_MSB, 0x02},
{HOST_INDEX_IOBAD0_LSB, 0xF8},
/* IRQ number is 3 */
{HOST_INDEX_IRQNUMX, 0x03},
/*
* Interrupt Request Type Select
* bit1, 0: IRQ request is buffered and applied to SERIRQ.
* 1: IRQ request is inverted before being applied to SERIRQ.
* bit0, 0: Edge triggered mode.
* 1: Level triggered mode.
*/
{HOST_INDEX_IRQTP, 0x02},
/* Enable logical device */
{HOST_INDEX_LDA, 0x01},
#endif
};
BUILD_ASSERT(ARRAY_SIZE(pnpcfg_settings) == EC2I_SETTING_COUNT);
|