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reef/pyro/eve/snappy: source 3A on one port

Browse Source 
Add a new source policy to provide 3A if there is only one port used
as a source.
Also ensure that the load switch on VBUS when sourcing power is properly
configured to limit the current to 1.5A or 3.0A depending on the case.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:56110
TEST=manual: connect the laptop to a type-C sink with Twinkie in between,
without anything else connected on the laptop, see 3A flowing when measuring
with Twinkie ('tw vbus'), plug a dangling C-to-A receptacle dongle on the other
port and see 1.5A flowing through Twinkie.
Force the input current limit on the sink to 3.0A and see the laptop cutting
VBUS.

Change-Id: Ic94ba186fc0648e770c8d13be0f96b23e968f855
Reviewed-on: https://chromium-review.googlesource.com/403851
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
This commit is contained in:
Vincent Palatin
2016-10-28 17:46:22 +02:00
committed by chrome-bot
parent 64f1823a74
commit e9584bc6ce
16 changed files with 196 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
board/eve/board.c
View File

@@ -413,8 +413,7 @@ int board_set_active_charge_port(int charge_port)
case 0:
case 1:
/* Don't charge from a source port */
if (gpio_get_level(charge_port == 0 ?
GPIO_USB_C0_5V_EN : GPIO_USB_C1_5V_EN))
if (board_vbus_source_enabled(charge_port))
return -1;
bd9995x_port = bd9995x_pd_port_to_chg_port(charge_port);

1
board/eve/board.h
View File

@@ -122,6 +122,7 @@
#define CONFIG_USB_PD_DUAL_ROLE
#define CONFIG_USB_PD_LOGGING
#define CONFIG_USB_PD_LOG_SIZE 512
#define CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT TYPEC_RP_3A0
#define CONFIG_USB_PD_PORT_COUNT 2
#define CONFIG_USB_PD_QUIRK_SLOW_CC_STATUS
#define CONFIG_USB_PD_VBUS_DETECT_CHARGER

4
board/eve/gpio.inc
View File

@@ -72,8 +72,8 @@ GPIO(TOUCHPAD_WAKE_L, PIN(7, 1), GPIO_INPUT | GPIO_SEL_1P8V) /* INT# from Trac
GPIO(DSP_WAKE_L, PIN(C, 6), GPIO_INPUT | GPIO_SEL_1P8V) /* INT# from DSP Mic */
/* 5V enables: INPUT=1.5A, OUT_LOW=OFF, OUT_HIGH=3A */
GPIO(USB_C0_5V_EN, PIN(4, 2), GPIO_OUT_LOW) /* C0 5V Enable */
GPIO(USB_C1_5V_EN, PIN(B, 1), GPIO_OUT_LOW) /* C1 5V Enable */
GPIO(USB_C0_5V_EN, PIN(4, 2), GPIO_OUT_LOW | GPIO_PULL_UP) /* C0 5V Enable */
GPIO(USB_C1_5V_EN, PIN(B, 1), GPIO_OUT_LOW | GPIO_PULL_UP) /* C1 5V Enable */
GPIO(USB_C0_CABLE_DET, PIN(D, 2), GPIO_INPUT) /* C0 Cable Detect */
GPIO(USB_C1_CABLE_DET, PIN(D, 3), GPIO_INPUT) /* C1 Cable Detect */
GPIO(USB_C0_PD_RST_L, PIN(0, 3), GPIO_OUT_LOW) /* C0 PD Reset */

53
board/eve/usb_pd_policy.c
View File

@@ -21,6 +21,7 @@
#include "util.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
@@ -33,6 +34,10 @@ const uint32_t pd_src_pdo[] = {
PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_cnt = ARRAY_SIZE(pd_src_pdo);
const uint32_t pd_src_pdo_max[] = {
PDO_FIXED(5000, 3000, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_max_cnt = ARRAY_SIZE(pd_src_pdo_max);
const uint32_t pd_snk_pdo[] = {
PDO_FIXED(5000, 500, PDO_FIXED_FLAGS),
@@ -51,9 +56,37 @@ void pd_transition_voltage(int idx)
/* No-operation: we are always 5V */
}
static uint8_t vbus_en[CONFIG_USB_PD_PORT_COUNT];
static uint8_t vbus_rp[CONFIG_USB_PD_PORT_COUNT] = {TYPEC_RP_1A5, TYPEC_RP_1A5};
int board_vbus_source_enabled(int port)
{
return gpio_get_level(port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN);
return vbus_en[port];
}
static void board_vbus_update_source_current(int port)
{
enum gpio_signal gpio = port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN;
int flags = (vbus_rp[port] == TYPEC_RP_1A5 && vbus_en[port]) ?
(GPIO_INPUT | GPIO_PULL_UP) : (GPIO_OUTPUT | GPIO_PULL_UP);
/*
* Driving USB_Cx_5V_EN high, actually put a 16.5k resistance
* (2x 33k in parallel) on the NX5P3290 load switch ILIM pin,
* setting a minimum OCP current of 3186 mA.
* Putting an internal pull-up on USB_Cx_5V_EN, effectively put a 33k
* resistor on ILIM, setting a minimum OCP current of 1505 mA.
*/
gpio_set_level(gpio, vbus_en[port]);
gpio_set_flags(gpio, flags);
}
void typec_set_source_current_limit(int port, int rp)
{
vbus_rp[port] = rp;
/* change the GPIO driving the load switch if needed */
board_vbus_update_source_current(port);
}
int pd_set_power_supply_ready(int port)
@@ -61,11 +94,13 @@ int pd_set_power_supply_ready(int port)
/* Ensure we're not charging from this port */
bd9995x_select_input_port(bd9995x_pd_port_to_chg_port(port), 0);
/* Provide VBUS */
gpio_set_level(port ? GPIO_USB_C1_5V_EN :
GPIO_USB_C0_5V_EN, 1);
/* Ensure we advertise the proper available current quota */
charge_manager_source_port(port, 1);
pd_set_vbus_discharge(port, 0);
/* Provide VBUS */
vbus_en[port] = 1;
board_vbus_update_source_current(port);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
@@ -75,19 +110,21 @@ int pd_set_power_supply_ready(int port)
void pd_power_supply_reset(int port)
{
enum gpio_signal gpio;
int prev_en;
gpio = port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN;
prev_en = gpio_get_level(gpio);
prev_en = vbus_en[port];
/* Disable VBUS */
gpio_set_level(gpio, 0);
vbus_en[port] = 0;
board_vbus_update_source_current(port);
/* Enable discharge if we were previously sourcing 5V */
if (prev_en)
pd_set_vbus_discharge(port, 1);
/* Give back the current quota we are no longer using */
charge_manager_source_port(port, 0);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}

3
board/pyro/board.c
View File

@@ -516,8 +516,7 @@ int board_set_active_charge_port(int charge_port)
case 0:
case 1:
/* Don't charge from a source port */
if (gpio_get_level(charge_port == 0 ?
GPIO_USB_C0_5V_EN : GPIO_USB_C1_5V_EN))
if (board_vbus_source_enabled(charge_port))
return -1;
bd9995x_port = bd9995x_pd_port_to_chg_port(charge_port);

1
board/pyro/board.h
View File

@@ -85,6 +85,7 @@
#define CONFIG_USB_PD_DISCHARGE_TCPC
#define CONFIG_USB_PD_LOGGING
#define CONFIG_USB_PD_LOG_SIZE 512
#define CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT TYPEC_RP_3A0
#define CONFIG_USB_PD_PORT_COUNT 2
#define CONFIG_USB_PD_QUIRK_SLOW_CC_STATUS
#define CONFIG_USB_PD_VBUS_DETECT_CHARGER

4
board/pyro/gpio.inc
View File

@@ -130,8 +130,8 @@ GPIO(USB_C1_PD_RST_ODL, PIN(7, 4), GPIO_ODR_LOW)
* Configure as input to enable @ 1.5A, output-low to turn off, or output-high
* to enable @ 3A.
*/
GPIO(USB_C0_5V_EN, PIN(D, 3), GPIO_OUT_LOW) /* EN_USB_C0_5V_OUT, Enable C0 */
GPIO(USB_C1_5V_EN, PIN(D, 2), GPIO_OUT_LOW) /* EN_USB_C1_5V_OUT, Enable C1 */
GPIO(USB_C0_5V_EN, PIN(D, 3), GPIO_OUT_LOW | GPIO_PULL_UP) /* EN_USB_C0_5V_OUT, Enable C0 */
GPIO(USB_C1_5V_EN, PIN(D, 2), GPIO_OUT_LOW | GPIO_PULL_UP) /* EN_USB_C1_5V_OUT, Enable C1 */
/* Clear for non-HDI breakout, must be pulled high */
GPIO(NC1, PIN(0, 0), GPIO_INPUT | GPIO_PULL_UP | GPIO_SEL_1P8V)

53
board/pyro/usb_pd_policy.c
View File

@@ -21,6 +21,7 @@
#include "util.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
@@ -33,6 +34,10 @@ const uint32_t pd_src_pdo[] = {
PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_cnt = ARRAY_SIZE(pd_src_pdo);
const uint32_t pd_src_pdo_max[] = {
PDO_FIXED(5000, 3000, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_max_cnt = ARRAY_SIZE(pd_src_pdo_max);
const uint32_t pd_snk_pdo[] = {
PDO_FIXED(5000, 500, PDO_FIXED_FLAGS),
@@ -51,9 +56,37 @@ void pd_transition_voltage(int idx)
/* No-operation: we are always 5V */
}
static uint8_t vbus_en[CONFIG_USB_PD_PORT_COUNT];
static uint8_t vbus_rp[CONFIG_USB_PD_PORT_COUNT] = {TYPEC_RP_1A5, TYPEC_RP_1A5};
int board_vbus_source_enabled(int port)
{
return gpio_get_level(port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN);
return vbus_en[port];
}
static void board_vbus_update_source_current(int port)
{
enum gpio_signal gpio = port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN;
int flags = (vbus_rp[port] == TYPEC_RP_1A5 && vbus_en[port]) ?
(GPIO_INPUT | GPIO_PULL_UP) : (GPIO_OUTPUT | GPIO_PULL_UP);
/*
* Driving USB_Cx_5V_EN high, actually put a 16.5k resistance
* (2x 33k in parallel) on the NX5P3290 load switch ILIM pin,
* setting a minimum OCP current of 3186 mA.
* Putting an internal pull-up on USB_Cx_5V_EN, effectively put a 33k
* resistor on ILIM, setting a minimum OCP current of 1505 mA.
*/
gpio_set_level(gpio, vbus_en[port]);
gpio_set_flags(gpio, flags);
}
void typec_set_source_current_limit(int port, int rp)
{
vbus_rp[port] = rp;
/* change the GPIO driving the load switch if needed */
board_vbus_update_source_current(port);
}
int pd_set_power_supply_ready(int port)
@@ -61,11 +94,13 @@ int pd_set_power_supply_ready(int port)
/* Ensure we're not charging from this port */
bd9995x_select_input_port(bd9995x_pd_port_to_chg_port(port), 0);
/* Provide VBUS */
gpio_set_level(port ? GPIO_USB_C1_5V_EN :
GPIO_USB_C0_5V_EN, 1);
/* Ensure we advertise the proper available current quota */
charge_manager_source_port(port, 1);
pd_set_vbus_discharge(port, 0);
/* Provide VBUS */
vbus_en[port] = 1;
board_vbus_update_source_current(port);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
@@ -75,19 +110,21 @@ int pd_set_power_supply_ready(int port)
void pd_power_supply_reset(int port)
{
enum gpio_signal gpio;
int prev_en;
gpio = port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN;
prev_en = gpio_get_level(gpio);
prev_en = vbus_en[port];
/* Disable VBUS */
gpio_set_level(gpio, 0);
vbus_en[port] = 0;
board_vbus_update_source_current(port);
/* Enable discharge if we were previously sourcing 5V */
if (prev_en)
pd_set_vbus_discharge(port, 1);
/* Give back the current quota we are no longer using */
charge_manager_source_port(port, 0);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}

3
board/reef/board.c
View File

@@ -547,8 +547,7 @@ int board_set_active_charge_port(int charge_port)
case 0:
case 1:
/* Don't charge from a source port */
if (gpio_get_level(charge_port == 0 ?
GPIO_USB_C0_5V_EN : GPIO_USB_C1_5V_EN))
if (board_vbus_source_enabled(charge_port))
return -1;
bd9995x_port = bd9995x_pd_port_to_chg_port(charge_port);

1
board/reef/board.h
View File

@@ -87,6 +87,7 @@
#define CONFIG_USB_PD_DISCHARGE_TCPC
#define CONFIG_USB_PD_LOGGING
#define CONFIG_USB_PD_LOG_SIZE 512
#define CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT TYPEC_RP_3A0
#define CONFIG_USB_PD_PORT_COUNT 2
#define CONFIG_USB_PD_QUIRK_SLOW_CC_STATUS
#define CONFIG_USB_PD_VBUS_DETECT_CHARGER

4
board/reef/gpio.inc
View File

@@ -126,8 +126,8 @@ GPIO(USB_C1_PD_RST_ODL, PIN(7, 4), GPIO_ODR_LOW)
* Configure as input to enable @ 1.5A, output-low to turn off, or output-high
* to enable @ 3A.
*/
GPIO(USB_C0_5V_EN, PIN(D, 3), GPIO_OUT_LOW) /* EN_USB_C0_5V_OUT, Enable C0 */
GPIO(USB_C1_5V_EN, PIN(D, 2), GPIO_OUT_LOW) /* EN_USB_C1_5V_OUT, Enable C1 */
GPIO(USB_C0_5V_EN, PIN(D, 3), GPIO_OUT_LOW | GPIO_PULL_UP) /* EN_USB_C0_5V_OUT, Enable C0 */
GPIO(USB_C1_5V_EN, PIN(D, 2), GPIO_OUT_LOW | GPIO_PULL_UP) /* EN_USB_C1_5V_OUT, Enable C1 */
/* Clear for non-HDI breakout, must be pulled high */
GPIO(NC1, PIN(0, 0), GPIO_INPUT | GPIO_PULL_UP | GPIO_SEL_1P8V)

53
board/reef/usb_pd_policy.c
View File

@@ -21,6 +21,7 @@
#include "util.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
@@ -33,6 +34,10 @@ const uint32_t pd_src_pdo[] = {
PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_cnt = ARRAY_SIZE(pd_src_pdo);
const uint32_t pd_src_pdo_max[] = {
PDO_FIXED(5000, 3000, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_max_cnt = ARRAY_SIZE(pd_src_pdo_max);
const uint32_t pd_snk_pdo[] = {
PDO_FIXED(5000, 500, PDO_FIXED_FLAGS),
@@ -51,9 +56,37 @@ void pd_transition_voltage(int idx)
/* No-operation: we are always 5V */
}
static uint8_t vbus_en[CONFIG_USB_PD_PORT_COUNT];
static uint8_t vbus_rp[CONFIG_USB_PD_PORT_COUNT] = {TYPEC_RP_1A5, TYPEC_RP_1A5};
int board_vbus_source_enabled(int port)
{
return gpio_get_level(port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN);
return vbus_en[port];
}
static void board_vbus_update_source_current(int port)
{
enum gpio_signal gpio = port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN;
int flags = (vbus_rp[port] == TYPEC_RP_1A5 && vbus_en[port]) ?
(GPIO_INPUT | GPIO_PULL_UP) : (GPIO_OUTPUT | GPIO_PULL_UP);
/*
* Driving USB_Cx_5V_EN high, actually put a 16.5k resistance
* (2x 33k in parallel) on the NX5P3290 load switch ILIM pin,
* setting a minimum OCP current of 3186 mA.
* Putting an internal pull-up on USB_Cx_5V_EN, effectively put a 33k
* resistor on ILIM, setting a minimum OCP current of 1505 mA.
*/
gpio_set_level(gpio, vbus_en[port]);
gpio_set_flags(gpio, flags);
}
void typec_set_source_current_limit(int port, int rp)
{
vbus_rp[port] = rp;
/* change the GPIO driving the load switch if needed */
board_vbus_update_source_current(port);
}
int pd_set_power_supply_ready(int port)
@@ -61,11 +94,13 @@ int pd_set_power_supply_ready(int port)
/* Ensure we're not charging from this port */
bd9995x_select_input_port(bd9995x_pd_port_to_chg_port(port), 0);
/* Provide VBUS */
gpio_set_level(port ? GPIO_USB_C1_5V_EN :
GPIO_USB_C0_5V_EN, 1);
/* Ensure we advertise the proper available current quota */
charge_manager_source_port(port, 1);
pd_set_vbus_discharge(port, 0);
/* Provide VBUS */
vbus_en[port] = 1;
board_vbus_update_source_current(port);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
@@ -75,19 +110,21 @@ int pd_set_power_supply_ready(int port)
void pd_power_supply_reset(int port)
{
enum gpio_signal gpio;
int prev_en;
gpio = port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN;
prev_en = gpio_get_level(gpio);
prev_en = vbus_en[port];
/* Disable VBUS */
gpio_set_level(gpio, 0);
vbus_en[port] = 0;
board_vbus_update_source_current(port);
/* Enable discharge if we were previously sourcing 5V */
if (prev_en)
pd_set_vbus_discharge(port, 1);
/* Give back the current quota we are no longer using */
charge_manager_source_port(port, 0);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}

3
board/snappy/board.c
View File

@@ -515,8 +515,7 @@ int board_set_active_charge_port(int charge_port)
case 0:
case 1:
/* Don't charge from a source port */
if (gpio_get_level(charge_port == 0 ?
GPIO_USB_C0_5V_EN : GPIO_USB_C1_5V_EN))
if (board_vbus_source_enabled(charge_port))
return -1;
bd9995x_port = bd9995x_pd_port_to_chg_port(charge_port);

1
board/snappy/board.h
View File

@@ -84,6 +84,7 @@
#define CONFIG_USB_PD_DISCHARGE_TCPC
#define CONFIG_USB_PD_LOGGING
#define CONFIG_USB_PD_LOG_SIZE 512
#define CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT TYPEC_RP_3A0
#define CONFIG_USB_PD_PORT_COUNT 2
#define CONFIG_USB_PD_QUIRK_SLOW_CC_STATUS
#define CONFIG_USB_PD_VBUS_DETECT_CHARGER

4
board/snappy/gpio.inc
View File

@@ -131,8 +131,8 @@ GPIO(USB_C1_PD_RST_ODL, PIN(7, 4), GPIO_ODR_LOW)
* Configure as input to enable @ 1.5A, output-low to turn off, or output-high
* to enable @ 3A.
*/
GPIO(USB_C0_5V_EN, PIN(D, 3), GPIO_OUT_LOW) /* EN_USB_C0_5V_OUT, Enable C0 */
GPIO(USB_C1_5V_EN, PIN(D, 2), GPIO_OUT_LOW) /* EN_USB_C1_5V_OUT, Enable C1 */
GPIO(USB_C0_5V_EN, PIN(D, 3), GPIO_OUT_LOW | GPIO_PULL_UP) /* EN_USB_C0_5V_OUT, Enable C0 */
GPIO(USB_C1_5V_EN, PIN(D, 2), GPIO_OUT_LOW | GPIO_PULL_UP) /* EN_USB_C1_5V_OUT, Enable C1 */
/* Clear for non-HDI breakout, must be pulled high */
GPIO(NC1, PIN(0, 0), GPIO_INPUT | GPIO_PULL_UP | GPIO_SEL_1P8V)

53
board/snappy/usb_pd_policy.c
View File

@@ -21,6 +21,7 @@
#include "util.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
@@ -33,6 +34,10 @@ const uint32_t pd_src_pdo[] = {
PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_cnt = ARRAY_SIZE(pd_src_pdo);
const uint32_t pd_src_pdo_max[] = {
PDO_FIXED(5000, 3000, PDO_FIXED_FLAGS),
};
const int pd_src_pdo_max_cnt = ARRAY_SIZE(pd_src_pdo_max);
const uint32_t pd_snk_pdo[] = {
PDO_FIXED(5000, 500, PDO_FIXED_FLAGS),
@@ -51,9 +56,37 @@ void pd_transition_voltage(int idx)
/* No-operation: we are always 5V */
}
static uint8_t vbus_en[CONFIG_USB_PD_PORT_COUNT];
static uint8_t vbus_rp[CONFIG_USB_PD_PORT_COUNT] = {TYPEC_RP_1A5, TYPEC_RP_1A5};
int board_vbus_source_enabled(int port)
{
return gpio_get_level(port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN);
return vbus_en[port];
}
static void board_vbus_update_source_current(int port)
{
enum gpio_signal gpio = port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN;
int flags = (vbus_rp[port] == TYPEC_RP_1A5 && vbus_en[port]) ?
(GPIO_INPUT | GPIO_PULL_UP) : (GPIO_OUTPUT | GPIO_PULL_UP);
/*
* Driving USB_Cx_5V_EN high, actually put a 16.5k resistance
* (2x 33k in parallel) on the NX5P3290 load switch ILIM pin,
* setting a minimum OCP current of 3186 mA.
* Putting an internal pull-up on USB_Cx_5V_EN, effectively put a 33k
* resistor on ILIM, setting a minimum OCP current of 1505 mA.
*/
gpio_set_level(gpio, vbus_en[port]);
gpio_set_flags(gpio, flags);
}
void typec_set_source_current_limit(int port, int rp)
{
vbus_rp[port] = rp;
/* change the GPIO driving the load switch if needed */
board_vbus_update_source_current(port);
}
int pd_set_power_supply_ready(int port)
@@ -61,11 +94,13 @@ int pd_set_power_supply_ready(int port)
/* Ensure we're not charging from this port */
bd9995x_select_input_port(bd9995x_pd_port_to_chg_port(port), 0);
/* Provide VBUS */
gpio_set_level(port ? GPIO_USB_C1_5V_EN :
GPIO_USB_C0_5V_EN, 1);
/* Ensure we advertise the proper available current quota */
charge_manager_source_port(port, 1);
pd_set_vbus_discharge(port, 0);
/* Provide VBUS */
vbus_en[port] = 1;
board_vbus_update_source_current(port);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
@@ -75,19 +110,21 @@ int pd_set_power_supply_ready(int port)
void pd_power_supply_reset(int port)
{
enum gpio_signal gpio;
int prev_en;
gpio = port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN;
prev_en = gpio_get_level(gpio);
prev_en = vbus_en[port];
/* Disable VBUS */
gpio_set_level(gpio, 0);
vbus_en[port] = 0;
board_vbus_update_source_current(port);
/* Enable discharge if we were previously sourcing 5V */
if (prev_en)
pd_set_vbus_discharge(port, 1);
/* Give back the current quota we are no longer using */
charge_manager_source_port(port, 0);
/* notify host of power info change */
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}