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/* Copyright 2013-2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
*/
#ifndef __SPCN_H
#define __SPCN_H
/* SPCN commands */
#define SPCN_CMD_PRS 0x42 /* Power Resource Status */
#define SPCN_CMD_SET 0x66 /* Set Environmental Thresholds */
/* SPCN command address modes */
#define SPCN_ADDR_MODE_CEC_NODE 0x0000d000 /* CEC node single destination */
#define SPCN_ADDR_MODE_ALL_SLAVES 0x0000f000 /* Address all slaves in all racks */
#define SPCN_ADDR_MODE_RACK_NODES 0x00000000 /* Address rack node in all racks */
/* SPCN PRS command modifiers */
#define SPCN_MOD_PRS_STATUS_FIRST 0x01 /* Power Resource Status (First 1KB) */
#define SPCN_MOD_PRS_STATUS_SUBS 0x02 /* Subsequent set of 1KB PRS entries */
#define SPCN_MOD_PRS_LED_DATA_FIRST 0x51 /* LED data entry (First 1KB) */
#define SPCN_MOD_PRS_LED_DATA_SUB 0x52 /* Subsequent LED data entries */
/* SPCN SET command modifiers */
#define SPCN_MOD_SET_LED_CTL_LOC_CODE 0x07 /* Control LED with location code */
#define SPCN_MOD_SET_IDENTIFY_OFF_ENC 0x08 /* Turn off identify LEDs in CEC */
#define SPCN_MOD_SET_IDENTIFY_OFF_NODE 0x0B /* Turn off identify LEDs in Node */
/* SPCN SENSOR command modifiers */
#define SPCN_MOD_SENSOR_PARAM_FIRST 0x10 /* First 1K sensor parameters */
#define SPCN_MOD_SENSOR_PARAM_SUBS 0x11 /* Subsequent sensor parameters */
#define SPCN_MOD_SENSOR_DATA_FIRST 0x12 /* First 1K sensor data */
#define SPCN_MOD_SENSOR_DATA_SUBS 0x13 /* Subsequent sensor data blocks */
#define SPCN_MOD_PROC_JUNC_TEMP 0x14 /* Process junction temperatures */
#define SPCN_MOD_SENSOR_POWER 0x1c /* System power consumption */
#define SPCN_MOD_LAST 0xff
/*
* Modifiers 0x53 and 0x54 are used by LEDS at standby. So HV does not come into
* the picture here. Do we need those?
*/
/* Supported SPCN response codes */
#define LOGICAL_IND_STATE_MASK 0x10 /* If set, control fault state */
#define ACTIVE_LED_STATE_MASK 0x01 /* If set, switch on the LED */
#define SPCN_LED_IDENTIFY_MASK 0x80 /* Set identify indicator */
#define SPCN_LED_FAULT_MASK 0x40 /* Set fault indicator */
#define SPCN_LED_TRANS_MASK 0x20 /* LED is in transition */
#define SPCN_CLR_LED_STATE 0x00 /* Reset identify indicator */
/* SPCN command response status codes */
enum spcn_rsp_status {
SPCN_RSP_STATUS_SUCCESS = 0x01, /* Command successful */
SPCN_RSP_STATUS_COND_SUCCESS = 0x02, /* Command successful, but additional entries exist */
SPCN_RSP_STATUS_INVALID_RACK = 0x15, /* Invalid rack command */
SPCN_RSP_STATUS_INVALID_SLAVE = 0x16, /* Invalid slave command */
SPCN_RSP_STATUS_INVALID_MOD = 0x18, /* Invalid modifier */
SPCN_RSP_STATUS_STATE_PROHIBIT = 0x21, /* Present state prohibits */
SPCN_RSP_STATUS_UNKNOWN = 0xff, /* Default state */
};
/* Sensor FRCs (Frame resource class) */
enum {
SENSOR_FRC_POWER_CTRL = 0x02,
SENSOR_FRC_POWER_SUPPLY,
SENSOR_FRC_REGULATOR,
SENSOR_FRC_COOLING_FAN,
SENSOR_FRC_COOLING_CTRL,
SENSOR_FRC_BATTERY_CHRG,
SENSOR_FRC_BATTERY_PACK,
SENSOR_FRC_AMB_TEMP,
SENSOR_FRC_TEMP,
SENSOR_FRC_VRM,
SENSOR_FRC_RISER_CARD,
SENSOR_FRC_IO_BP,
};
/*
* Common to all PRS modifiers (subcommands)
*/
struct sensor_header {
uint16_t frc; /* Frame resource class */
uint16_t rid; /* Resource ID */
} __packed;
/*
* Data layout for PRS modifier PRS_STATUS 0x01, 0x02
*/
struct sensor_prs {
struct sensor_header header;
uint16_t src; /* unused */
uint16_t status;
} __packed;
#define PRS_STATUS_ON_SUPPORTED 0x0010
#define PRS_STATUS_ON 0x0008
#define PRS_STATUS_AC_FAULTED 0x0004
#define PRS_STATUS_FAULTED 0x0002
#define PRS_STATUS_PRESENT 0x0001
/*
* Data layout for PRS modifier SENSOR_PARAM 0x10, 0x11
*/
struct sensor_param {
struct sensor_header header;
char location[4];
char __reserved[4];
uint16_t threshold;
uint16_t status;
} __packed;
/*
* Data layout for PRS modifier SENSOR_DATA 0x12, 0x13
*/
struct sensor_data {
struct sensor_header header;
uint16_t data;
uint16_t status;
} __packed;
#define SENSOR_STATUS_EM_ALERT 0x0004
#define SENSOR_STATUS_FAULTED 0x0002
#define SENSOR_STATUS_PRESENT 0x0001
/* Power sensor is retrieved through a new PRS modifier 0x1C, data
* response is as follows:
*
* Byte 0:
*
* Bit 7: Data valid
* Bit 4-6: reserved
* Bit 0-3: Number of power supply or data records
*
* Each data record is 5 Bytes following above byte 0:
*
* Data Record: Byte 0: Power supply ID {00, 01, 02, 03, ...}
* Byte 1-4: Power sensor value in milli-watts
*
* Example Power Sensor data: (Tuleta)
* 84 00 00 00 00 00
* 01 00 00 00 00
* 02 00 02 5d 78
* 03 00 02 0f 58
* 00 00 00 00 00
*
* 0x84: Bit 7 is valid bit and there are 4 power supplies
* 0x00 00 00 00 00
* | ^^^^^^^^^^^ Power in milli-watts
* \-- Power supply ID
*
* Ox03 00 02 0f 58
* | ^^^^^^^^^^^ Power in milli-watts (135000 mW)
* \-- Power supply ID
*/
#define POWER_SUPPLY_MAX 8
struct sensor_power_supply {
uint8_t rid; /* Power supply ID */
uint32_t milliwatts;
} __packed;
struct sensor_power {
uint8_t status;
struct sensor_power_supply supplies[POWER_SUPPLY_MAX];
} __packed;
#define sensor_power_is_valid(s) ((s)->status & 0x80)
#define sensor_power_count(s) ((s)->status & 0x0f)
#endif /* __SPCN_H */
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