diff options
| author | Alec Berg <alecaberg@chromium.org> | 2014-05-21 07:32:59 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-06-05 04:22:56 +0000 |
| commit | 31369a69dbf34cff8d9135f5d503efa717e3da35 (patch) | |
| tree | a77f2778fb71da215b5d8748a551d49e21e51e89 /include | |
| parent | 565f1cb5ae1ebd287e1bf00ab8245274a5ecbaa6 (diff) | |
| download | chrome-ec-31369a69dbf34cff8d9135f5d503efa717e3da35.tar.gz | |
samus: Add EC <-> PD i2c interface using host commands
Initial support for EC to PD communication using host
command interface over i2c.
BUG=chrome-os-partner:28351, chrome-os-partner:28352
BRANCH=none
TEST=on EC console send hello host command:
> pdcmd 0x01 0 0xa0 0xb0 0xc0 0xd0
Host command 0x01, returned 4
a4
b3
c2
d1
Change-Id: I0969808f455574ee456d6db8a60ce9b1204a0739
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/200786
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/config.h | 6 | ||||
| -rw-r--r-- | include/host_command.h | 14 |
2 files changed, 20 insertions, 0 deletions
diff --git a/include/config.h b/include/config.h index 4700e00dbb..86b43d2509 100644 --- a/include/config.h +++ b/include/config.h @@ -496,6 +496,9 @@ /*****************************************************************************/ +/* Support EC acting as host master for other MCUs. */ +#undef CONFIG_HOST_CMD_MASTER + /* * Support the host asking the EC about the status of the most recent host * command. @@ -860,6 +863,9 @@ /* USB PD transmit uses SPI master */ #undef CONFIG_USB_PD_TX_USES_SPI_MASTER +/* USB PD MCU slave address for host commands */ +#define CONFIG_USB_PD_I2C_SLAVE_ADDR 0x3c + /* Support simple control of power to the device's USB ports */ #undef CONFIG_USB_PORT_POWER_DUMB diff --git a/include/host_command.h b/include/host_command.h index 158367a80b..1fbf0b6554 100644 --- a/include/host_command.h +++ b/include/host_command.h @@ -207,4 +207,18 @@ void host_packet_receive(struct host_packet *pkt); */ void host_throttle_cpu(int throttle); +/** + * Send host command to PD MCU. + * + * @param command Host command number + * @param version Version of host command + * @param outdata Pointer to buffer of out data + * @param outsize Size of buffer to out data + * @param indata Pointer to buffer to store response + * @param insize Size of buffer to store response + */ +int pd_host_command(int command, int version, + const void *outdata, int outsize, + void *indata, int insize); + #endif /* __CROS_EC_HOST_COMMAND_H */ |