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| author | Daisuke Nojiri <dnojiri@chromium.org> | 2021-03-11 13:17:35 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-03-18 19:28:06 +0000 |
| commit | 1c5ff6f4d1ddfd3862f9bcfc85a4564eac63d16f (patch) | |
| tree | 18b1f49685261f099409180c62bc5e70c361420a /include | |
| parent | 4126a065489fe40668186c5f5b4dee4797388b25 (diff) | |
| download | chrome-ec-1c5ff6f4d1ddfd3862f9bcfc85a4564eac63d16f.tar.gz | |
PCHG: Support reset to firmware update mode
This patch allows a charger chip to reset to firmware update mode
(a.k.a. download mode). Actual firmware update will be added
in a separate patch.
Currently, a reset event causes the state machine to unconditionally
transition to normal mode. This patch makes the state machine check
'mode' field in the context to decide whether it transitions to
normal mode or not.
This patch also makes ctn730 driver explicitly return
PCHG_EVENT_*_ERROR while PCHG_EVENT_NONE was returned previously.
BUG=b:173235954
BRANCH=trogdor
TEST=Stylus connect, disconnect, charge events are triggered as
expected.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: I10dbd25d0b3d5284952e57d4ade2949e9594c8d1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2770503
Diffstat (limited to 'include')
| -rw-r--r-- | include/peripheral_charger.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/peripheral_charger.h b/include/peripheral_charger.h index a53fbb9104..2e535d4f3e 100644 --- a/include/peripheral_charger.h +++ b/include/peripheral_charger.h @@ -83,7 +83,11 @@ enum pchg_event { PCHG_EVENT_CHARGE_UPDATE, PCHG_EVENT_CHARGE_ENDED, PCHG_EVENT_CHARGE_STOPPED, + PCHG_EVENT_IN_NORMAL, + + /* Errors */ PCHG_EVENT_CHARGE_ERROR, + PCHG_EVENT_OTHER_ERROR, /* Internal (a.k.a. Host) Events */ PCHG_EVENT_INITIALIZE, @@ -103,6 +107,11 @@ enum pchg_error { PCHG_ERROR_FOREIGN_OBJECT = BIT(3), }; +enum pchg_mode { + PCHG_MODE_NORMAL = 0, + PCHG_MODE_DOWNLOAD, +}; + /** * Data struct describing the configuration of a peripheral charging port. */ @@ -140,6 +149,8 @@ struct pchg { uint8_t battery_percent; /* Number of dropped events (due to queue overflow) */ uint32_t dropped_event_count; + /* enum pchg_mode */ + uint8_t mode; }; /** |