84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*
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* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef SQ_SCPI_H
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#define SQ_SCPI_H
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#include <stddef.h>
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#include <stdint.h>
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/*
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* An SCPI command consists of a header and a payload.
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* The following structure describes the header. It is 64-bit long.
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*/
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typedef struct {
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/* Command ID */
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uint32_t id : 7;
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/* Set ID. Identifies whether this is a standard or extended command. */
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uint32_t set : 1;
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/* Sender ID to match a reply. The value is sender specific. */
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uint32_t sender : 8;
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/* Size of the payload in bytes (0 - 511) */
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uint32_t size : 9;
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uint32_t reserved : 7;
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/*
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* Status indicating the success of a command.
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* See the enum below.
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*/
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uint32_t status;
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} scpi_cmd_t;
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typedef enum {
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SCPI_SET_NORMAL = 0, /* Normal SCPI commands */
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SCPI_SET_EXTENDED /* Extended SCPI commands */
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} scpi_set_t;
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enum {
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SCP_OK = 0, /* Success */
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SCP_E_PARAM, /* Invalid parameter(s) */
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SCP_E_ALIGN, /* Invalid alignment */
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SCP_E_SIZE, /* Invalid size */
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SCP_E_HANDLER, /* Invalid handler or callback */
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SCP_E_ACCESS, /* Invalid access or permission denied */
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SCP_E_RANGE, /* Value out of range */
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SCP_E_TIMEOUT, /* Time out has ocurred */
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SCP_E_NOMEM, /* Invalid memory area or pointer */
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SCP_E_PWRSTATE, /* Invalid power state */
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SCP_E_SUPPORT, /* Feature not supported or disabled */
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SCPI_E_DEVICE, /* Device error */
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SCPI_E_BUSY, /* Device is busy */
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};
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typedef uint32_t scpi_status_t;
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typedef enum {
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SCPI_CMD_SCP_READY = 0x01,
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SCPI_CMD_SET_POWER_STATE = 0x03,
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SCPI_CMD_SYS_POWER_STATE = 0x05
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} scpi_command_t;
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typedef enum {
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scpi_power_on = 0,
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scpi_power_retention = 1,
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scpi_power_off = 3,
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} scpi_power_state_t;
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typedef enum {
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scpi_system_shutdown = 0,
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scpi_system_reboot = 1,
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scpi_system_reset = 2
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} scpi_system_state_t;
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extern int scpi_wait_ready(void);
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extern void scpi_set_sq_power_state(unsigned int mpidr,
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scpi_power_state_t cpu_state,
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scpi_power_state_t cluster_state,
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scpi_power_state_t css_state);
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uint32_t scpi_sys_power_state(scpi_system_state_t system_state);
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uint32_t scpi_get_draminfo(struct draminfo *info);
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#endif /* SQ_SCPI_H */
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