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| author | Abe Levkoy <alevkoy@chromium.org> | 2021-04-01 16:53:52 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-04-15 17:58:41 +0000 |
| commit | a687150a3ac7c62df02e34de17d23566082b8e8a (patch) | |
| tree | 6830880351e9b53172ea498aaeb8bf690469a58d | |
| parent | 5f0980d11eab2db0690c05f4d75dd81917fe12aa (diff) | |
| download | chrome-ec-a687150a3ac7c62df02e34de17d23566082b8e8a.tar.gz | |
TCPMv2: Generate Hard Reset event
Inform the AP when the PRL completes a Hard Reset.
BUG=b:183946291
TEST=Observe event during transition-to-default states
TEST=With kernel patch, observe mode reentry after Hard Reset
BRANCH=firmware-volteer-13672.B-main
Signed-off-by: Abe Levkoy <alevkoy@chromium.org>
Change-Id: I4af576bd3a8fb57d820bd91d74817040214eaa5b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2799924
Reviewed-by: Diana Z <dzigterman@chromium.org>
Commit-Queue: Diana Z <dzigterman@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2829114
| -rw-r--r-- | common/usbc/usb_prl_sm.c | 4 | ||||
| -rw-r--r-- | common/usbc/usb_tc_drp_acc_trysrc_sm.c | 3 | ||||
| -rw-r--r-- | include/ec_commands.h | 1 |
3 files changed, 8 insertions, 0 deletions
diff --git a/common/usbc/usb_prl_sm.c b/common/usbc/usb_prl_sm.c index 9fcdfd0a33..7f1f9dd368 100644 --- a/common/usbc/usb_prl_sm.c +++ b/common/usbc/usb_prl_sm.c @@ -1327,6 +1327,10 @@ static void prl_hr_reset_layer_entry(const int port) */ prl_set_default_pd_revision(port); + /* Inform the AP of Hard Reset */ + if (IS_ENABLED(CONFIG_USB_PD_HOST_CMD)) + pd_notify_event(port, PD_STATUS_EVENT_HARD_RESET); + /* * Protocol Layer message transmission transitions to * PRL_Tx_Wait_For_Message_Request state. diff --git a/common/usbc/usb_tc_drp_acc_trysrc_sm.c b/common/usbc/usb_tc_drp_acc_trysrc_sm.c index 65e7b32dc1..46b2e799a6 100644 --- a/common/usbc/usb_tc_drp_acc_trysrc_sm.c +++ b/common/usbc/usb_tc_drp_acc_trysrc_sm.c @@ -3846,6 +3846,9 @@ static void pd_chipset_reset(void) for (i = 0; i < board_get_usb_pd_port_count(); i++) { enum tcpm_transmit_type tx; + /* Do not notify the AP of irrelevant past Hard Resets. */ + pd_clear_events(i, PD_STATUS_EVENT_HARD_RESET); + /* * Re-set events for SOP and SOP' discovery complete so the * kernel knows to consume discovery information for them. diff --git a/include/ec_commands.h b/include/ec_commands.h index a3678f3bc4..4a074fae8e 100644 --- a/include/ec_commands.h +++ b/include/ec_commands.h @@ -6643,6 +6643,7 @@ enum tcpc_cc_polarity { #define PD_STATUS_EVENT_SOP_DISC_DONE BIT(0) #define PD_STATUS_EVENT_SOP_PRIME_DISC_DONE BIT(1) +#define PD_STATUS_EVENT_HARD_RESET BIT(2) /* * Encode and decode for BCD revision response |