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Date: Tue, 23 Aug 2016 12:34:17 +0800 From: Nicolas Boichat <drinkcat@...omium.org> To: Lee Jones <lee.jones@...aro.org> Cc: gwendal@...omium.org, ejcaruso@...omium.org, Olof Johansson <olof@...om.net>, linux-kernel@...r.kernel.org, groeck@...omium.org Subject: [PATCH 1/3] mfd: cros_ec: Add EC console read structures definitions 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@...omium.org> --- include/linux/mfd/cros_ec_commands.h | 21 ++++++++++++++++++++- 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; + /*****************************************************************************/ /* -- 2.8.0.rc3.226.g39d4020
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