diff options
Diffstat (limited to 'zephyr/shim/include/power_host_sleep.h')
| -rw-r--r-- | zephyr/shim/include/power_host_sleep.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/zephyr/shim/include/power_host_sleep.h b/zephyr/shim/include/power_host_sleep.h new file mode 100644 index 0000000000..44034e4274 --- /dev/null +++ b/zephyr/shim/include/power_host_sleep.h @@ -0,0 +1,69 @@ +/* Copyright 2022 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. + */ + +#ifndef __POWER_HOST_SLEEP_H +#define __POWER_HOST_SLEEP_H + +/* + * This file is for Zephyr ap_pwrseq to reuse legacy EC code. + * Eventually this file should be removed. + * + * TODO: Declaration in this file should be removed once it can be replaced + * by implementation in Zephyr code. + */ +#if CONFIG_AP_PWRSEQ +#include "ec_commands.h" +#include "host_command.h" +#include "lpc.h" + +/********************************************************************/ +/* power.h */ +enum power_state { + /* Steady states */ + POWER_G3 = 0, /* + * System is off (not technically all the way into G3, + * which means totally unpowered...) + */ + POWER_S5, /* System is soft-off */ + POWER_S4, /* System is suspended to disk */ + POWER_S3, /* Suspend; RAM on, processor is asleep */ + POWER_S0, /* System is on */ +#if CONFIG_AP_PWRSEQ_S0IX + POWER_S0ix, +#endif + /* Transitions */ + POWER_G3S5, /* G3 -> S5 (at system init time) */ + POWER_S5S3, /* S5 -> S3 (skips S4 on non-Intel systems) */ + POWER_S3S0, /* S3 -> S0 */ + POWER_S0S3, /* S0 -> S3 */ + POWER_S3S5, /* S3 -> S5 (skips S4 on non-Intel systems) */ + POWER_S5G3, /* S5 -> G3 */ + POWER_S3S4, /* S3 -> S4 */ + POWER_S4S3, /* S4 -> S3 */ + POWER_S4S5, /* S4 -> S5 */ + POWER_S5S4, /* S5 -> S4 */ +#if CONFIG_AP_PWRSEQ_S0IX + POWER_S0ixS0, /* S0ix -> S0 */ + POWER_S0S0ix, /* S0 -> S0ix */ +#endif +}; + +#if CONFIG_AP_PWRSEQ_HOST_SLEEP +/* Context to pass to a host sleep command handler. */ +struct host_sleep_event_context { + uint32_t sleep_transitions; /* Number of sleep transitions observed */ + uint16_t sleep_timeout_ms; /* Timeout in milliseconds */ +}; + +void ap_power_chipset_handle_host_sleep_event( + enum host_sleep_event state, + struct host_sleep_event_context *ctx); +enum host_sleep_event power_get_host_sleep_state(void); +void power_set_host_sleep_state(enum host_sleep_event state); +#endif /* CONFIG_AP_PWRSEQ_HOST_SLEEP */ + +#endif /* CONFIG_AP_PWRSEQ */ + +#endif /* __POWER_HOST_SLEEP_H */ |