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| author | Denis Brockus <dbrockus@chromium.org> | 2019-08-05 08:46:03 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-08-05 21:18:40 +0000 |
| commit | ba753b782a65b2532a3d4682df76f0fbdbe7e2f5 (patch) | |
| tree | f3b0e752c8c4e184f37c0e249bb2311efe217b81 /baseboard | |
| parent | c5e34fe248736e5a0b2a0d7388d2f996c6b081ff (diff) | |
| download | chrome-ec-ba753b782a65b2532a3d4682df76f0fbdbe7e2f5.tar.gz | |
Trembyle: implement board_set_active_charge_port
BUG=b:138599952
BRANCH=none
TEST=make buildall -j
Change-Id: I82ef7cad0cd6d91d1e4bbcc0d1a2d312dd773e8f
Signed-off-by: Denis Brockus <dbrockus@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1736797
Commit-Queue: Edward Hill <ecgh@chromium.org>
Reviewed-by: Keith Short <keithshort@chromium.org>
Reviewed-by: Edward Hill <ecgh@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Diffstat (limited to 'baseboard')
| -rw-r--r-- | baseboard/zork/baseboard.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/baseboard/zork/baseboard.c b/baseboard/zork/baseboard.c index a1932f0910..213a323c6e 100644 --- a/baseboard/zork/baseboard.c +++ b/baseboard/zork/baseboard.c @@ -50,6 +50,9 @@ #include "usbc_ppc.h" #include "util.h" +#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args) +#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ## args) + const enum gpio_signal hibernate_wake_pins[] = { GPIO_LID_OPEN, GPIO_AC_PRESENT, @@ -214,6 +217,60 @@ int ppc_get_alert_status(int port) } } +int board_set_active_charge_port(int port) +{ + int is_valid_port = (port >= 0 && + port < CONFIG_USB_PD_PORT_COUNT); + int i; + + if (port == CHARGE_PORT_NONE) { + CPRINTSUSB("Disabling all charger ports"); + + /* Disable all ports. */ + for (i = 0; i < ppc_cnt; i++) { + /* + * Do not return early if one fails otherwise we can + * get into a boot loop assertion failure. + */ + if (ppc_vbus_sink_enable(i, 0)) + CPRINTSUSB("Disabling C%d as sink failed.", i); + } + + return EC_SUCCESS; + } else if (!is_valid_port) { + return EC_ERROR_INVAL; + } + + + /* Check if the port is sourcing VBUS. */ + if (ppc_is_sourcing_vbus(port)) { + CPRINTFUSB("Skip enable C%d", port); + return EC_ERROR_INVAL; + } + + CPRINTSUSB("New charge port: C%d", port); + + /* + * Turn off the other ports' sink path FETs, before enabling the + * requested charge port. + */ + for (i = 0; i < ppc_cnt; i++) { + if (i == port) + continue; + + if (ppc_vbus_sink_enable(i, 0)) + CPRINTSUSB("C%d: sink path disable failed.", i); + } + + /* Enable requested charge port. */ + if (ppc_vbus_sink_enable(port, 1)) { + CPRINTSUSB("C%d: sink path enable failed.", port); + return EC_ERROR_UNKNOWN; + } + + return EC_SUCCESS; +} + const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = { [USBC_PORT_C0] = { .bus_type = EC_BUS_TYPE_I2C, |