diff options
| author | Alec Berg <alecaberg@chromium.org> | 2014-08-20 18:07:33 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-08-27 01:29:58 +0000 |
| commit | 1933fb8ff70ec725cbb4d960de5cc23d682acb78 (patch) | |
| tree | 3c23f0f3e85194bdb5b156b4da911d799e6bf85b /board/samus_pd | |
| parent | e913bc15b8a631757b362da09fc1385a7f509def (diff) | |
| download | chrome-ec-1933fb8ff70ec725cbb4d960de5cc23d682acb78.tar.gz | |
samus: add ability for PD MCU to send host event to AP
Add host event for PD up to AP. The PD toggles a gpio line to
EC causing an interrupt on EC. The EC then sends host command
down to PD MCU to get its status. There is a new status bit for
PD host event, so when EC see's the PD host event status bit,
it sends a PD host event to the AP.
There is currently only one host event for PD to AP.
BUG=chrome-os-partner:31361
BRANCH=none
TEST=added PD console command pdevent, which initiates the host
event. when sent, verified on EC that it sets the correct host
event bit using hostevent console command
Change-Id: If1a59a3232e2f9a49f272c6dee5319254d87b9a9
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/213371
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Diffstat (limited to 'board/samus_pd')
| -rw-r--r-- | board/samus_pd/usb_pd_policy.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/board/samus_pd/usb_pd_policy.c b/board/samus_pd/usb_pd_policy.c index 867a020dd6..7b56d12435 100644 --- a/board/samus_pd/usb_pd_policy.c +++ b/board/samus_pd/usb_pd_policy.c @@ -3,6 +3,7 @@ * found in the LICENSE file. */ +#include "atomic.h" #include "common.h" #include "console.h" #include "gpio.h" @@ -194,6 +195,18 @@ DECLARE_CONSOLE_COMMAND(ecint, command_ec_int, "Toggle EC interrupt line", NULL); +static int command_pd_host_event(int argc, char **argv) +{ + atomic_or(&(pd_status.status), PD_STATUS_HOST_EVENT); + pd_send_ec_int(); + + return EC_SUCCESS; +} +DECLARE_CONSOLE_COMMAND(pdevent, command_pd_host_event, + "", + "Send PD host event", + NULL); + /****************************************************************************/ /* Host commands */ static int ec_status_host_cmd(struct host_cmd_handler_args *args) @@ -205,6 +218,9 @@ static int ec_status_host_cmd(struct host_cmd_handler_args *args) *r = pd_status; + /* Clear host event */ + atomic_clear(&(pd_status.status), PD_STATUS_HOST_EVENT); + args->response_size = sizeof(*r); return EC_RES_SUCCESS; |