diff options
| author | Vic Yang <victoryang@google.com> | 2011-12-21 17:03:43 +0800 |
|---|---|---|
| committer | Vic Yang <victoryang@google.com> | 2011-12-22 13:51:07 +0800 |
| commit | b228bc14c01f54bc70b82ea85bcb82dd402006a1 (patch) | |
| tree | 79842c8aa2894a11abe75954e4e99da7edd61744 /include | |
| parent | 84a286b1f49c25df1d44bbf87d748b20421f5521 (diff) | |
| download | chrome-ec-b228bc14c01f54bc70b82ea85bcb82dd402006a1.tar.gz | |
Add host command to read temperature sensor value
Add a LPC host command to read temperature sensor value with given
sensor id.
Add ectool command to read temperature sensor value through LPC.
BUG=chrome-os-partner:7329
TEST=Manual check the reading received is the same as value printed by
console command.
Change-Id: Id3386774435be6c3ae010a143f4fa894568efdb8
Diffstat (limited to 'include')
| -rw-r--r-- | include/lpc_commands.h | 12 | ||||
| -rw-r--r-- | include/temp_sensor_commands.h | 19 |
2 files changed, 31 insertions, 0 deletions
diff --git a/include/lpc_commands.h b/include/lpc_commands.h index 08b4d9c1d8..a7ba4818c9 100644 --- a/include/lpc_commands.h +++ b/include/lpc_commands.h @@ -205,4 +205,16 @@ struct lpc_response_flash_checksum { #endif /* SUPPORT_CHECKSUM */ +/*****************************************************************************/ +/* Temperature sensor commands */ + +/* Get temperature readings */ +#define EC_LPC_COMMAND_TEMP_SENSOR_GET_READINGS 0x30 +struct lpc_params_temp_sensor_get_readings { + uint8_t temp_sensor_id; +} __attribute__ ((packed)); +struct lpc_response_temp_sensor_get_readings { + uint32_t value; +} __attribute__ ((packed)); + #endif /* __CROS_EC_LPC_COMMANDS_H */ diff --git a/include/temp_sensor_commands.h b/include/temp_sensor_commands.h new file mode 100644 index 0000000000..6971804895 --- /dev/null +++ b/include/temp_sensor_commands.h @@ -0,0 +1,19 @@ +/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/* Temperature sensor commands for Chrome EC */ + +#ifndef __CROS_EC_TEMP_SENSOR_COMMANDS_H +#define __CROS_EC_TEMP_SENSOR_COMMANDS_H + +#include "common.h" + +/* Initializes the module. */ +int temp_sensor_commands_init(void); + +/* Host command handlers. */ +enum lpc_status temp_sensor_command_get_readings(uint8_t *data); + +#endif /* __CROS_EC_TEMP_SENSOR_COMMANDS_H */ |