Re: [PATCH 1/3] mfd: cros_ec: Add EC console read structures definitions

From: Lee Jones
Date: Wed Aug 31 2016 - 07:43:38 EST


On Tue, 23 Aug 2016, Nicolas Boichat wrote:

> ec_params_console_read_v1 is used to capture EC logs from kernel,
> and ec_params_get_cmd_versions_v1 is used to probe whether EC
> supports that command.
>
> Signed-off-by: Nicolas Boichat <drinkcat@xxxxxxxxxxxx>
> ---
> include/linux/mfd/cros_ec_commands.h | 21 ++++++++++++++++++++-

Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>

I guess this will be taken through Olof's tree?

> 1 file changed, 20 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
> index 7e7a8d4..74c84e82 100644
> --- a/include/linux/mfd/cros_ec_commands.h
> +++ b/include/linux/mfd/cros_ec_commands.h
> @@ -625,6 +625,10 @@ struct ec_params_get_cmd_versions {
> uint8_t cmd; /* Command to check */
> } __packed;
>
> +struct ec_params_get_cmd_versions_v1 {
> + uint16_t cmd; /* Command to check */
> +} __packed;
> +
> struct ec_response_get_cmd_versions {
> /*
> * Mask of supported versions; use EC_VER_MASK() to compare with a
> @@ -2003,13 +2007,28 @@ struct ec_params_charge_control {
> #define EC_CMD_CONSOLE_SNAPSHOT 0x97
>
> /*
> - * Read next chunk of data from saved snapshot.
> + * Read data from the saved snapshot. If the subcmd parameter is
> + * CONSOLE_READ_NEXT, this will return data starting from the beginning of
> + * the latest snapshot. If it is CONSOLE_READ_RECENT, it will start from the
> + * end of the previous snapshot.
> + *
> + * The params are only looked at in version >= 1 of this command. Prior
> + * versions will just default to CONSOLE_READ_NEXT behavior.
> *
> * Response is null-terminated string. Empty string, if there is no more
> * remaining output.
> */
> #define EC_CMD_CONSOLE_READ 0x98
>
> +enum ec_console_read_subcmd {
> + CONSOLE_READ_NEXT = 0,
> + CONSOLE_READ_RECENT
> +};
> +
> +struct ec_params_console_read_v1 {
> + uint8_t subcmd; /* enum ec_console_read_subcmd */
> +} __packed;
> +
> /*****************************************************************************/
>
> /*

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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