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| author | Vincent Palatin <vpalatin@chromium.org> | 2015-01-15 09:47:02 -0800 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-01-21 06:44:33 +0000 |
| commit | b13063c247a39603bf63f89e4442434a58cde236 (patch) | |
| tree | 2466cd340fdce607c6d7100d90c5128742aed893 /common/usb_pd_protocol.c | |
| parent | 3075113c856dc0c26325a7e5ff9d8ed7f9658b4d (diff) | |
| download | chrome-ec-b13063c247a39603bf63f89e4442434a58cde236.tar.gz | |
pd: retrieve logs from accessories
Send the VDO_CMD_GET_LOG VDM to accessories to get their PD event log
and append it to the PD MCU log.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=samus
BUG=chrome-os-partner:33248 chrome-os-partner:32785
TEST=ectool --name=cros_pd pdlog
Change-Id: Ib52d1e2cae5f77dcec6d0489eaa49527388b02b6
Reviewed-on: https://chromium-review.googlesource.com/242013
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Alec Berg <alecaberg@chromium.org>
Diffstat (limited to 'common/usb_pd_protocol.c')
| -rw-r--r-- | common/usb_pd_protocol.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/common/usb_pd_protocol.c b/common/usb_pd_protocol.c index 9796462564..c18af2093a 100644 --- a/common/usb_pd_protocol.c +++ b/common/usb_pd_protocol.c @@ -2931,6 +2931,31 @@ void pd_send_hpd(int port, enum hpd_event hpd) } #endif +int pd_fetch_acc_log_entry(int port) +{ + timestamp_t timeout; + + /* Cannot send a VDM now, the host should retry */ + if (pd[port].vdm_state > 0) + return pd[port].vdm_state == VDM_STATE_BUSY ? + EC_RES_BUSY : EC_RES_UNAVAILABLE; + + pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_GET_LOG, NULL, 0); + timeout.val = get_time().val + 500*MSEC; + + /* Wait until VDM is done */ + while ((pd[port].vdm_state > 0) && + (get_time().val < timeout.val)) + task_wait_event(10*MSEC); + + if (pd[port].vdm_state > 0) + return EC_RES_TIMEOUT; + else if (pd[port].vdm_state < 0) + return EC_RES_ERROR; + + return EC_RES_SUCCESS; +} + void pd_request_source_voltage(int port, int mv) { pd_set_max_voltage(mv); |