| /* |
| * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * Neither the name of ARM nor the names of its contributors may be used |
| * to endorse or promote products derived from this software without specific |
| * prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __SCPI_H__ |
| #define __SCPI_H__ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| extern void *scpi_secure_message_start(void); |
| extern void scpi_secure_message_send(unsigned command, size_t size); |
| extern unsigned scpi_secure_message_receive(void **message_out, size_t *size_out); |
| extern void scpi_secure_message_end(void); |
| |
| |
| enum { |
| SCP_OK = 0, /* Success */ |
| SCP_E_PARAM, /* Invalid parameter(s) */ |
| SCP_E_ALIGN, /* Invalid alignment */ |
| SCP_E_SIZE, /* Invalid size */ |
| SCP_E_HANDLER, /* Invalid handler or callback */ |
| SCP_E_ACCESS, /* Invalid access or permission denied */ |
| SCP_E_RANGE, /* Value out of range */ |
| SCP_E_TIMEOUT, /* Time out has ocurred */ |
| SCP_E_NOMEM, /* Invalid memory area or pointer */ |
| SCP_E_PWRSTATE, /* Invalid power state */ |
| SCP_E_SUPPORT, /* Feature not supported or disabled */ |
| }; |
| |
| typedef uint32_t scpi_status_t; |
| |
| typedef enum { |
| SCPI_CMD_SCP_READY = 0x01, |
| SCPI_CMD_SET_CSS_POWER_STATE = 0x04, |
| SCPI_CMD_SYS_POWER_STATE = 0x08 |
| } scpi_command_t; |
| |
| typedef enum { |
| scpi_power_on = 0, |
| scpi_power_retention = 1, |
| scpi_power_off = 3, |
| } scpi_power_state_t; |
| |
| typedef enum { |
| scpi_system_shutdown = 0, |
| scpi_system_reboot = 1, |
| scpi_system_reset = 2 |
| } scpi_system_state_t; |
| |
| extern int scpi_wait_ready(void); |
| extern void scpi_set_css_power_state(unsigned mpidr, scpi_power_state_t cpu_state, |
| scpi_power_state_t cluster_state, scpi_power_state_t css_state); |
| uint32_t scpi_sys_power_state(scpi_system_state_t system_state); |
| |
| #endif /* __SCPI_H__ */ |
