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| author | Vijay Hiremath <vijay.p.hiremath@intel.com> | 2020-02-10 16:44:42 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-02-12 20:05:32 +0000 |
| commit | 8d3e54731e8f2a47a1822d08f4a403aef28be1de (patch) | |
| tree | 54aee1c9e69a0ef6176af1d68686f8ada453e943 /common/usb_common.c | |
| parent | 7460621eae83145ea57d42c0eb6daf486286f234 (diff) | |
| download | chrome-ec-8d3e54731e8f2a47a1822d08f4a403aef28be1de.tar.gz | |
TCPMv1/v2: Move pd_set_vbus_discharge() to common file
BUG=b:148528713
BRANCH=none
TEST=make buildall -j
Change-Id: Id7b0d10396300c4bd5b8253b7ce77c1fe59c9bc8
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2051216
Reviewed-by: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'common/usb_common.c')
| -rw-r--r-- | common/usb_common.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/common/usb_common.c b/common/usb_common.c index 814a209da3..308f4109b7 100644 --- a/common/usb_common.c +++ b/common/usb_common.c @@ -840,3 +840,43 @@ static void pd_usb_billboard_deferred(void) } } DECLARE_DEFERRED(pd_usb_billboard_deferred); + +#ifdef CONFIG_USB_PD_DISCHARGE +static void gpio_discharge_vbus(int port, int enable) +{ +#ifdef CONFIG_USB_PD_DISCHARGE_GPIO + enum gpio_signal dischg_gpio[] = { + GPIO_USB_C0_DISCHARGE, +#if CONFIG_USB_PD_PORT_MAX_COUNT > 1 + GPIO_USB_C1_DISCHARGE, +#endif +#if CONFIG_USB_PD_PORT_MAX_COUNT > 2 + GPIO_USB_C2_DISCHARGE, +#endif + }; + BUILD_ASSERT(ARRAY_SIZE(dischg_gpio) == CONFIG_USB_PD_PORT_MAX_COUNT); + + gpio_set_level(dischg_gpio[port], enable); +#endif /* CONFIG_USB_PD_DISCHARGE_GPIO */ +} + +void pd_set_vbus_discharge(int port, int enable) +{ + static struct mutex discharge_lock[CONFIG_USB_PD_PORT_MAX_COUNT]; + + if (port >= board_get_usb_pd_port_count()) + return; + + mutex_lock(&discharge_lock[port]); + enable &= !board_vbus_source_enabled(port); + + if (IS_ENABLED(CONFIG_USB_PD_DISCHARGE_GPIO)) + gpio_discharge_vbus(port, enable); + else if (IS_ENABLED(CONFIG_USB_PD_DISCHARGE_TCPC)) + tcpc_discharge_vbus(port, enable); + else if (IS_ENABLED(CONFIG_USB_PD_DISCHARGE_PPC)) + ppc_discharge_vbus(port, enable); + + mutex_unlock(&discharge_lock[port]); +} +#endif /* CONFIG_USB_PD_DISCHARGE */ |