diff options
| author | Hung-Te Lin <hungte@chromium.org> | 2013-04-11 15:58:12 +0800 |
|---|---|---|
| committer | David Hendricks <dhendrix@chromium.org> | 2013-04-12 04:57:39 +0200 |
| commit | a904f9ef691062a43baa5542cf63daed45a1185a (patch) | |
| tree | 421b2691a1c4d97ddfbeb90665effd5f0fdbca27 /src/ec/google/chromeec/ec.h | |
| parent | d9de6c4f0eb1c863f8fd81ede326973ad1aab0f2 (diff) | |
ec/google: Isolate EC bus protocol implementation.
The Chrome EC can be connected by different types of bus like LPC / I2C / SPI,
and the current implementation is only for LPC.
To support other types, we must first isolate the LPC protocol stuff and add
configuration variable (EC_GOOGLE_CHROMEEC_LPC) to specify bus type.
Verified by building google/link (with chromeec) configuration successfully.
Change-Id: Ib2920d8d935bcc77a5394e818f69e9265e26e8a0
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3068
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/ec/google/chromeec/ec.h')
| -rw-r--r-- | src/ec/google/chromeec/ec.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h index f056d266e6..c78560f973 100644 --- a/src/ec/google/chromeec/ec.h +++ b/src/ec/google/chromeec/ec.h @@ -46,4 +46,17 @@ enum usb_charge_mode { }; int google_chromeec_set_usb_charge_mode(u8 port_id, enum usb_charge_mode mode); +/* internal structure to send a command to the EC and wait for response. */ +struct chromeec_command { + uint8_t cmd_code; /* command code in, status out */ + uint8_t cmd_version; /* command version */ + const void* cmd_data_in; /* command data, if any */ + void* cmd_data_out; /* command response, if any */ + uint16_t cmd_size_in; /* size of command data */ + uint16_t cmd_size_out; /* expected size of command response in, + * actual received size out */ +}; + +int google_chromeec_command(struct chromeec_command *cec_command); + #endif /* _EC_GOOGLE_CHROMEEC_EC_H */ |