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/* arch/arm/mach-msm/pm.h
*
* Copyright (C) 2007 Google, Inc.
* Copyright (c) 2009-2013, The Linux Foundation. All rights reserved.
* Author: San Mehat <san@android.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __ARCH_ARM_MACH_MSM_PM_H
#define __ARCH_ARM_MACH_MSM_PM_H
#include <linux/types.h>
#include <linux/cpuidle.h>
#ifdef CONFIG_SMP
extern void msm_secondary_startup(void);
#else
#define msm_secondary_startup NULL
#endif
DECLARE_PER_CPU(int, power_collapsed);
struct msm_pm_irq_calls {
unsigned int (*irq_pending)(void);
int (*idle_sleep_allowed)(void);
void (*enter_sleep1)(bool modem_wake, int from_idle, uint32_t
*irq_mask);
int (*enter_sleep2)(bool modem_wake, int from_idle);
void (*exit_sleep1)(uint32_t irq_mask, uint32_t wakeup_reason,
uint32_t pending_irqs);
void (*exit_sleep2)(uint32_t irq_mask, uint32_t wakeup_reason,
uint32_t pending_irqs);
void (*exit_sleep3)(uint32_t irq_mask, uint32_t wakeup_reason,
uint32_t pending_irqs);
};
enum msm_pm_sleep_mode {
MSM_PM_SLEEP_MODE_WAIT_FOR_INTERRUPT = 0,
MSM_PM_SLEEP_MODE_RAMP_DOWN_AND_WAIT_FOR_INTERRUPT = 1,
MSM_PM_SLEEP_MODE_POWER_COLLAPSE_STANDALONE = 2,
MSM_PM_SLEEP_MODE_POWER_COLLAPSE = 3,
MSM_PM_SLEEP_MODE_APPS_SLEEP = 4,
MSM_PM_SLEEP_MODE_RETENTION = MSM_PM_SLEEP_MODE_APPS_SLEEP,
MSM_PM_SLEEP_MODE_POWER_COLLAPSE_SUSPEND = 5,
MSM_PM_SLEEP_MODE_POWER_COLLAPSE_NO_XO_SHUTDOWN = 6,
MSM_PM_SLEEP_MODE_NR = 7,
MSM_PM_SLEEP_MODE_NOT_SELECTED,
};
#define MSM_PM_MODE(cpu, mode_nr) ((cpu) * MSM_PM_SLEEP_MODE_NR + (mode_nr))
struct msm_pm_time_params {
uint32_t latency_us;
uint32_t sleep_us;
uint32_t next_event_us;
uint32_t modified_time_us;
};
struct msm_pm_platform_data {
u8 idle_supported; /* Allow device to enter mode during idle */
u8 suspend_supported; /* Allow device to enter mode during suspend */
u8 suspend_enabled; /* enabled for suspend */
u8 idle_enabled; /* enabled for idle low power */
u32 latency; /* interrupt latency in microseconds when entering
and exiting the low power mode */
u32 residency; /* time threshold in microseconds beyond which
staying in the low power mode saves power */
};
extern struct msm_pm_platform_data msm_pm_sleep_modes[];
struct msm_pm_sleep_ops {
void *(*lowest_limits)(bool from_idle,
enum msm_pm_sleep_mode sleep_mode,
struct msm_pm_time_params *time_param, uint32_t *power);
int (*enter_sleep)(uint32_t sclk_count, void *limits,
bool from_idle, bool notify_rpm);
void (*exit_sleep)(void *limits, bool from_idle,
bool notify_rpm, bool collapsed);
};
enum msm_pm_pc_mode_type {
MSM_PM_PC_TZ_L2_INT = 0, /*Power collapse terminates in TZ;
integrated L2 cache controller */
MSM_PM_PC_NOTZ_L2_EXT = 1, /* Power collapse doesn't terminate in
TZ; external L2 cache controller */
MSM_PM_PC_TZ_L2_EXT = 2, /* Power collapse terminates in TZ;
external L2 cache controller */
};
struct msm_pm_init_data_type {
enum msm_pm_pc_mode_type pc_mode;
bool use_sync_timer;
};
struct msm_pm_cpr_ops {
void (*cpr_suspend)(void);
void (*cpr_resume)(void);
};
void msm_pm_set_platform_data(struct msm_pm_platform_data *data, int count);
enum msm_pm_sleep_mode msm_pm_idle_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index);
void msm_pm_set_irq_extns(struct msm_pm_irq_calls *irq_calls);
void msm_pm_cpu_enter_lowpower(unsigned int cpu);
void __init msm_pm_set_tz_retention_flag(unsigned int flag);
void msm_pm_enable_retention(bool enable);
#ifdef CONFIG_MSM_PM8X60
void msm_pm_set_rpm_wakeup_irq(unsigned int irq);
void msm_pm_set_sleep_ops(struct msm_pm_sleep_ops *ops);
#else
static inline void msm_pm_set_rpm_wakeup_irq(unsigned int irq) {}
static inline void msm_pm_set_sleep_ops(struct msm_pm_sleep_ops *ops) {}
#endif
#ifdef CONFIG_HOTPLUG_CPU
int msm_platform_secondary_init(unsigned int cpu);
#else
static inline int msm_platform_secondary_init(unsigned int cpu) { return 0; }
#endif
enum msm_pm_time_stats_id {
MSM_PM_STAT_REQUESTED_IDLE = 0,
MSM_PM_STAT_IDLE_SPIN,
MSM_PM_STAT_IDLE_WFI,
MSM_PM_STAT_RETENTION,
MSM_PM_STAT_IDLE_STANDALONE_POWER_COLLAPSE,
MSM_PM_STAT_IDLE_FAILED_STANDALONE_POWER_COLLAPSE,
MSM_PM_STAT_IDLE_POWER_COLLAPSE,
MSM_PM_STAT_IDLE_FAILED_POWER_COLLAPSE,
MSM_PM_STAT_SUSPEND,
MSM_PM_STAT_FAILED_SUSPEND,
MSM_PM_STAT_NOT_IDLE,
MSM_PM_STAT_COUNT
};
#ifdef CONFIG_MSM_IDLE_STATS
void msm_pm_add_stats(enum msm_pm_time_stats_id *enable_stats, int size);
void msm_pm_add_stat(enum msm_pm_time_stats_id id, int64_t t);
#else
static inline void msm_pm_add_stats(enum msm_pm_time_stats_id *enable_stats,
int size) {}
static inline void msm_pm_add_stat(enum msm_pm_time_stats_id id, int64_t t) {}
#endif
void msm_pm_set_cpr_ops(struct msm_pm_cpr_ops *ops);
extern void *msm_pc_debug_counters;
extern unsigned long msm_pc_debug_counters_phys;
#endif /* __ARCH_ARM_MACH_MSM_PM_H */