diff options
| -rw-r--r-- | src/ec/google/wilco/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/ec/google/wilco/commands.c | 52 | ||||
| -rw-r--r-- | src/ec/google/wilco/commands.h | 77 |
3 files changed, 130 insertions, 1 deletions
diff --git a/src/ec/google/wilco/Makefile.inc b/src/ec/google/wilco/Makefile.inc index 6130f6f36a..68172e3abe 100644 --- a/src/ec/google/wilco/Makefile.inc +++ b/src/ec/google/wilco/Makefile.inc @@ -1,5 +1,5 @@ ifeq ($(CONFIG_EC_GOOGLE_WILCO),y) -ramstage-y += mailbox.c +ramstage-y += commands.c mailbox.c endif diff --git a/src/ec/google/wilco/commands.c b/src/ec/google/wilco/commands.c new file mode 100644 index 0000000000..9ea8936e10 --- /dev/null +++ b/src/ec/google/wilco/commands.c @@ -0,0 +1,52 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 Google LLC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <console/console.h> +#include <stdint.h> +#include <string.h> + +#include "ec.h" +#include "commands.h" + +int wilco_ec_get_info(enum get_ec_info_cmd type, char *info) +{ + struct ec_response_get_ec_info rsp; + + if (!info) + return -1; + if (wilco_ec_sendrecv(KB_EC_INFO, type, &rsp, sizeof(rsp)) < 0) + return -1; + + /* Copy returned string */ + strncpy(info, rsp.data, sizeof(rsp.data)); + return 0; +} + +void wilco_ec_print_all_info(void) +{ + char info[EC_INFO_MAX_SIZE]; + + if (!wilco_ec_get_info(GET_EC_LABEL, info)) + printk(BIOS_INFO, "EC Label : %s\n", info); + + if (!wilco_ec_get_info(GET_EC_SVN_REV, info)) + printk(BIOS_INFO, "EC Revision : %s\n", info); + + if (!wilco_ec_get_info(GET_EC_MODEL_NO, info)) + printk(BIOS_INFO, "EC Model Num : %s\n", info); + + if (!wilco_ec_get_info(GET_EC_BUILD_DATE, info)) + printk(BIOS_INFO, "EC Build Date : %s\n", info); +} diff --git a/src/ec/google/wilco/commands.h b/src/ec/google/wilco/commands.h new file mode 100644 index 0000000000..dff86aa1d0 --- /dev/null +++ b/src/ec/google/wilco/commands.h @@ -0,0 +1,77 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 Google LLC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef EC_GOOGLE_WILCO_COMMANDS_H +#define EC_GOOGLE_WILCO_COMMANDS_H + +#include <stdint.h> + +enum { + /* Retrieve information about the EC */ + KB_EC_INFO = 0x38, + /* Set ACPI mode on or off */ + KB_ACPI = 0x3a, + /* Manage the EC power button passthru to the host */ + KB_POWER_BUTTON_TO_HOST = 0x3e, +}; + +enum set_acpi_mode_cmd { + ACPI_OFF = 0, + ACPI_ON +}; + +/* + * EC Information + */ + +enum get_ec_info_cmd { + GET_EC_LABEL = 0, + GET_EC_SVN_REV, + GET_EC_MODEL_NO, + GET_EC_BUILD_DATE +}; + +#define EC_INFO_MAX_SIZE 9 +struct ec_response_get_ec_info { + char data[EC_INFO_MAX_SIZE]; /* ASCII NUL terminated string */ +}; + +/** + * wilco_ec_get_info + * + * Read a specific information string from the EC and return it in + * the caller-provided buffer of at least EC_INFO_MAX_SIZE bytes. + * + * @cmd: Information to retrieve + * @info: Character array of EC_INFO_MAX_SIZE bytes + * + * Returns 0 if successful and resulting string is in 'info' + * Returns -1 if the EC command fails + */ +int wilco_ec_get_info(enum get_ec_info_cmd cmd, char *info); + +/** + * wilco_ec_print_all_info + * + * Retrieve and print all the information strings from the EC: + * + * GET_EC_LABEL + * GET_EC_SVN_REV + * GET_EC_MODEL_NO + * GET_EC_BUILD_DATE + */ +void wilco_ec_print_all_info(void); + +#endif /* EC_GOOGLE_WILCO_COMMANDS_H */ |