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| author | Eric Yilun Lin <yllin@chromium.org> | 2022-02-18 16:33:33 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2022-02-24 09:43:54 +0000 |
| commit | 5276c82511b7485aaa7acfbf21b752c31eb29643 (patch) | |
| tree | b0e9e84bed32c433ffcd0558c3303807b77c4688 /zephyr/projects/corsola/src/usb_pd_policy.c | |
| parent | e374e796a6c97f8178faf0659acb358c9fe1b750 (diff) | |
| download | chrome-ec-5276c82511b7485aaa7acfbf21b752c31eb29643.tar.gz | |
corsola: support HDMI HPD over virtual mux and type-c DP
Initialize USB-C port num to 2 after tasks associated with
port 1 exit, and we can safely simulate HDMI1 over C1 mux.
Simulate HDMI HPD event over C1 virtual mux, and type-c DP.
HPD high -> virtual mux set DP connected
HPD low for 2 ms -> virtual mux set DP disconnected
This CL saves 2 GPIOs to AP and re-use the existing ANX7625 driver
without changing.
BUG=b:216021294
TEST=1. plug hdmi, unplug HDMI, and virtual mux, and DP status can be
updated accordingly.
2. See HDMI port output
3. ectool typec 0|1
BRANCH=none
Change-Id: Icbf35523770a6eeda6ac970573738373ecdf849b
Signed-off-by: Eric Yilun Lin <yllin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3474551
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Eric Yilun Lin <yllin@google.com>
Tested-by: Eric Yilun Lin <yllin@google.com>
Auto-Submit: Eric Yilun Lin <yllin@google.com>
Diffstat (limited to 'zephyr/projects/corsola/src/usb_pd_policy.c')
| -rw-r--r-- | zephyr/projects/corsola/src/usb_pd_policy.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/zephyr/projects/corsola/src/usb_pd_policy.c b/zephyr/projects/corsola/src/usb_pd_policy.c index 88eb297694..790c830c17 100644 --- a/zephyr/projects/corsola/src/usb_pd_policy.c +++ b/zephyr/projects/corsola/src/usb_pd_policy.c @@ -11,6 +11,8 @@ #include "usb_pd.h" #include "usbc_ppc.h" +#include "baseboard_usbc_config.h" + #if CONFIG_USB_PD_3A_PORTS != 1 #error Corsola reference must have at least one 3.0 A port #endif @@ -39,15 +41,7 @@ void svdm_set_hpd_gpio(int port, int en) gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(ec_ap_dp_hpd_odl), !en); } -/** - * Is the port fine to be muxed its DisplayPort lines? - * - * Only one port can be muxed to DisplayPort at a time. - * - * @param port Port number of TCPC. - * @return 1 is fine; 0 is bad as other port is already muxed; - */ -static int is_dp_muxable(int port) +int corsola_is_dp_muxable(int port) { int i; @@ -72,7 +66,7 @@ __override int svdm_dp_attention(int port, uint32_t *payload) dp_status[port] = payload[1]; - if (!is_dp_muxable(port)) { + if (!corsola_is_dp_muxable(port)) { /* TODO(waihong): Info user? */ CPRINTS("p%d: The other port is already muxed.", port); return 0; /* nak */ |