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| author | Ayushee <ayushee.shah@intel.com> | 2020-01-28 14:53:21 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-01-31 01:49:49 +0000 |
| commit | d181c052e5c90f78fa2dde64c82690962de39fb5 (patch) | |
| tree | 7e0e25e5436467eeefb85bec3fca7cae3c1d32db /include | |
| parent | 71aadcd324ddfcdde2168247d7ef2d19b69db36e (diff) | |
| download | chrome-ec-d181c052e5c90f78fa2dde64c82690962de39fb5.tar.gz | |
usb_pd TCPMv1: Maintain independent MessageID for SOP Prime
This patchset enables storage of MessageId counter received from the
cable plug.
Since SOP*(Cable) communication and SOP(Port Partner) have separate
MessageID counters, it is necessary to store separate messageIDs to
avoid the the incoming packets from getting dropped.
BUG=b:148481858
BRANCH=None
TEST=Tested on Volteer, able to maintain separate MessageId count for
SOP and SOP' communication.
Change-Id: Iac2dc616f99a9e19914588e59441df8b09068afa
Signed-off-by: Ayushee <ayushee.shah@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2026650
Reviewed-by: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/usb_pd.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/usb_pd.h b/include/usb_pd.h index eaff1212c9..8ce6335b7d 100644 --- a/include/usb_pd.h +++ b/include/usb_pd.h @@ -529,6 +529,8 @@ enum pd_rev_type { /* Cable structure for storing cable attributes */ struct pd_cable { + /* Last received cable message id counter*/ + uint8_t last_cable_msg_id; uint8_t is_identified; /* Type of cable */ enum idh_ptype type; @@ -1683,6 +1685,26 @@ uint32_t *pd_get_mode_vdo(int port, uint16_t svid_idx); struct svdm_amode_data *pd_get_amode_data(int port, uint16_t svid); /** + * Returns 0 if previous cable messageId count is different from received + * messageId count. + * + * @param port USB-C port number + * @param msg_id Received cable msg_id + * @return 0 if Received MessageId count is different from the + * previous one. + * 1 Otherwise + */ +int cable_consume_repeat_message(int port, uint8_t msg_id); + +/** + * Returns status of CABLE_FLAGS_SOP_PRIME_ENABLE flag + * + * @param port USB-C port number + * @return Status of CABLE_FLAGS_SOP_PRIME_ENABLE flag + */ +bool is_transmit_msg_sop_prime(int port); + +/** * Returns the status of cable flag - CABLE_FLAGS_SOP_PRIME_ENABLE * * @param port USB-C port number |