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/* Copyright (c) 2014 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 "atomic.h"
#include "charge_manager.h"
#include "common.h"
#include "console.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "registers.h"
#include "system.h"
#include "task.h"
#include "timer.h"
#include "util.h"
#include "usb_mux.h"
#include "usb_pd.h"
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
/* Define typical operating power and max power */
#define OPERATING_POWER_MW 15000
#define MAX_POWER_MW 60000
#define MAX_CURRENT_MA 3000
/*
* Do not request any voltage within this deadband region, where
* we're not sure whether or not the boost or the bypass will be on.
*/
#define INPUT_VOLTAGE_DEADBAND_MIN 9700
#define INPUT_VOLTAGE_DEADBAND_MAX 11999
#define PDO_FIXED_FLAGS (PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP |\
PDO_FIXED_COMM_CAP)
const uint32_t pd_src_pdo[] = {
PDO_FIXED(5000, 900, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_cnt = ARRAY_SIZE(pd_src_pdo);
const uint32_t pd_snk_pdo[] = {
PDO_FIXED(5000, 500, PDO_FIXED_FLAGS),
PDO_BATT(4750, 21000, 15000),
PDO_VAR(4750, 21000, 3000),
};
const int pd_snk_pdo_cnt = ARRAY_SIZE(pd_snk_pdo);
__override int pd_is_valid_input_voltage(int mv)
{
/* Allow any voltage not in the boost bypass deadband */
return (mv < INPUT_VOLTAGE_DEADBAND_MIN) ||
(mv > INPUT_VOLTAGE_DEADBAND_MAX);
}
int pd_set_power_supply_ready(int port)
{
/* provide VBUS */
gpio_set_level(port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN, 1);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
return EC_SUCCESS; /* we are ready */
}
void pd_power_supply_reset(int port)
{
/* Kill VBUS */
gpio_set_level(port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN, 0);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}
int pd_snk_is_vbus_provided(int port)
{
return gpio_get_level(port ? GPIO_USB_C1_VBUS_WAKE :
GPIO_USB_C0_VBUS_WAKE);
}
int pd_check_vconn_swap(int port)
{
/* in S5, do not allow vconn swap since pp5000 rail is off */
return gpio_get_level(GPIO_PCH_SLP_S5_L);
}
/* ----------------- Vendor Defined Messages ------------------ */
#define PORT_TO_HPD(port) ((port) ? GPIO_USB_C1_DP_HPD : GPIO_USB_C0_DP_HPD)
__override void svdm_dp_post_config(int port)
{
dp_flags[port] |= DP_FLAGS_DP_ON;
if (!(dp_flags[port] & DP_FLAGS_HPD_HI_PENDING))
return;
gpio_set_level(PORT_TO_HPD(port), 1);
}
static void hpd0_irq_deferred(void)
{
gpio_set_level(GPIO_USB_C0_DP_HPD, 1);
}
static void hpd1_irq_deferred(void)
{
gpio_set_level(GPIO_USB_C1_DP_HPD, 1);
}
DECLARE_DEFERRED(hpd0_irq_deferred);
DECLARE_DEFERRED(hpd1_irq_deferred);
#define PORT_TO_HPD_IRQ_DEFERRED(port) ((port) ? \
&hpd1_irq_deferred_data : \
&hpd0_irq_deferred_data)
__override int svdm_dp_attention(int port, uint32_t *payload)
{
int cur_lvl;
int lvl = PD_VDO_DPSTS_HPD_LVL(payload[1]);
int irq = PD_VDO_DPSTS_HPD_IRQ(payload[1]);
enum gpio_signal hpd = PORT_TO_HPD(port);
cur_lvl = gpio_get_level(hpd);
dp_status[port] = payload[1];
/* Its initial DP status message prior to config */
if (!(dp_flags[port] & DP_FLAGS_DP_ON)) {
if (lvl)
dp_flags[port] |= DP_FLAGS_HPD_HI_PENDING;
return 1;
}
if (irq & cur_lvl) {
gpio_set_level(hpd, 0);
hook_call_deferred(PORT_TO_HPD_IRQ_DEFERRED(port),
HPD_DSTREAM_DEBOUNCE_IRQ);
} else if (irq & !cur_lvl) {
CPRINTF("ERR:HPD:IRQ&LOW\n");
return 0; /* nak */
} else {
gpio_set_level(hpd, lvl);
}
/* ack */
return 1;
}
__override void svdm_exit_dp_mode(int port)
{
svdm_safe_dp_mode(port);
gpio_set_level(PORT_TO_HPD(port), 0);
}
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