diff options
| author | Julius Werner <jwerner@chromium.org> | 2016-11-21 20:14:07 -0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-12-06 21:55:43 +0100 |
| commit | ea79d2b3a3ddcb7909ac2862ebfda19c6b8823ae (patch) | |
| tree | c4eeb5e491da3642ec8c85bcd09a51828a35ee5f /src | |
| parent | 3a0cb458dcca564f006ed2c322eeb683f269776f (diff) | |
| download | coreboot-ea79d2b3a3ddcb7909ac2862ebfda19c6b8823ae.tar.xz | |
google/chromeec: Add command to control USB PD role
Normally firmware should have no business messing with the USB PD role
(source/sink/whatever) in the EC. But, as so often happens, ugly issues
crop up that require weird work-arounds, and before you know it you need
to do this for some reason that only makes sense in context. I do now,
so add this function to send the necessary host command in the simplest
possible fashion.
BRANCH=gru
BUG=chrome-os-partner:59346
TEST=Used it in a follow-up patch.
Change-Id: I07d40feafd6a8387a633d6384efb205baf578d76
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 8b71767caccff9b77d458182ce8066f7abf6321c
Original-Change-Id: Ie8d0be98f6b703f4db062fe2f728cd2588347202
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/413030
Original-Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-on: https://review.coreboot.org/17627
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 22 | ||||
| -rw-r--r-- | src/ec/google/chromeec/ec.h | 1 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index 1308c3d13b..d0648f7d1d 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -497,6 +497,28 @@ int google_chromeec_set_usb_charge_mode(u8 port_id, enum usb_charge_mode mode) return google_chromeec_command(&cmd); } +int google_chromeec_set_usb_pd_role(u8 port, enum usb_pd_control_role role) +{ + struct ec_params_usb_pd_control req = { + .port = port, + .role = role, + .mux = USB_PD_CTRL_MUX_NO_CHANGE, + .swap = USB_PD_CTRL_SWAP_NONE, + }; + struct ec_response_usb_pd_control rsp; + struct chromeec_command cmd = { + .cmd_code = EC_CMD_USB_PD_CONTROL, + .cmd_version = 0, + .cmd_data_in = &req, + .cmd_size_in = sizeof(req), + .cmd_data_out = &rsp, + .cmd_size_out = sizeof(rsp), + .cmd_dev_index = 0, + }; + + return google_chromeec_command(&cmd); +} + #ifndef __SMM__ static diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h index f765fe46ba..71cea7ea8a 100644 --- a/src/ec/google/chromeec/ec.h +++ b/src/ec/google/chromeec/ec.h @@ -76,6 +76,7 @@ enum usb_charge_mode { USB_CHARGE_MODE_DOWNSTREAM_1500MA, }; int google_chromeec_set_usb_charge_mode(u8 port_id, enum usb_charge_mode mode); +int google_chromeec_set_usb_pd_role(u8 port, enum usb_pd_control_role role); /* internal structure to send a command to the EC and wait for response. */ struct chromeec_command { |