/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * 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_MSM_DCVS_SCM_H
#define _ARCH_ARM_MACH_MSM_MSM_DCVS_SCM_H

enum msm_dcvs_core_type {
	MSM_DCVS_CORE_TYPE_CPU = 0,
	MSM_DCVS_CORE_TYPE_GPU = 1,
};

enum msm_dcvs_algo_param_type {
	MSM_DCVS_ALGO_DCVS_PARAM = 0,
	MSM_DCVS_ALGO_MPD_PARAM  = 1,
};

enum msm_dcvs_scm_event {
	MSM_DCVS_SCM_IDLE_ENTER = 0, /* Core enters idle */
	MSM_DCVS_SCM_IDLE_EXIT = 1, /* Core exits idle */
	MSM_DCVS_SCM_QOS_TIMER_EXPIRED = 2, /* Core slack timer expired */
	MSM_DCVS_SCM_CLOCK_FREQ_UPDATE = 3, /* Core freq change complete */
	MSM_DCVS_SCM_CORE_ONLINE = 4, /* Core is online */
	MSM_DCVS_SCM_CORE_OFFLINE = 5, /* Core is offline */
	MSM_DCVS_SCM_CORE_UNAVAILABLE = 6, /* Core is offline + unavailable */
	MSM_DCVS_SCM_DCVS_ENABLE = 7, /* DCVS is enabled/disabled for core */
	MSM_DCVS_SCM_MPD_ENABLE = 8, /* Enable/disable MP Decision */
	MSM_DCVS_SCM_RUNQ_UPDATE = 9, /* Update running threads */
	MSM_DCVS_SCM_MPD_QOS_TIMER_EXPIRED = 10, /* MPDecision slack timer */
};

struct msm_dcvs_algo_param {
	uint32_t disable_pc_threshold;
	uint32_t em_win_size_min_us;
	uint32_t em_win_size_max_us;
	uint32_t em_max_util_pct;
	uint32_t group_id;
	uint32_t max_freq_chg_time_us;
	uint32_t slack_mode_dynamic;
	uint32_t slack_time_min_us;
	uint32_t slack_time_max_us;
	uint32_t slack_weight_thresh_pct;
	uint32_t ss_no_corr_below_freq;
	uint32_t ss_win_size_min_us;
	uint32_t ss_win_size_max_us;
	uint32_t ss_util_pct;
};

struct msm_dcvs_freq_entry {
	uint32_t freq;
	uint32_t voltage;
	uint32_t is_trans_level;
	uint32_t active_energy_offset;
	uint32_t leakage_energy_offset;
};

struct msm_dcvs_energy_curve_coeffs {
	int32_t active_coeff_a;
	int32_t active_coeff_b;
	int32_t active_coeff_c;

	int32_t leakage_coeff_a;
	int32_t leakage_coeff_b;
	int32_t leakage_coeff_c;
	int32_t leakage_coeff_d;
};

struct msm_dcvs_power_params {
	uint32_t current_temp;
	uint32_t num_freq; /* number of msm_dcvs_freq_entry passed */
};

struct msm_dcvs_core_param {
	uint32_t core_type;
	uint32_t core_bitmask_id;
};

struct msm_mpd_algo_param {
	uint32_t em_win_size_min_us;
	uint32_t em_win_size_max_us;
	uint32_t em_max_util_pct;
	uint32_t mp_em_rounding_point_min;
	uint32_t mp_em_rounding_point_max;
	uint32_t online_util_pct_min;
	uint32_t online_util_pct_max;
	uint32_t slack_time_min_us;
	uint32_t slack_time_max_us;
};

static inline int msm_dcvs_scm_init(uint32_t phy, size_t bytes)
{ return -ENOSYS; }
static inline int msm_dcvs_scm_register_core(uint32_t core_id,
		struct msm_dcvs_core_param *param,
		struct msm_dcvs_freq_entry *freq)
{ return -ENOSYS; }
static inline int msm_dcvs_scm_set_algo_params(uint32_t core_id,
		struct msm_dcvs_algo_param *param)
{ return -ENOSYS; }
static inline int msm_mpd_scm_set_algo_params(
		struct msm_mpd_algo_param *param)
{ return -ENOSYS; }
static inline int msm_dcvs_set_power_params(uint32_t core_id,
		struct msm_dcvs_power_params *pwr_param,
		struct msm_dcvs_freq_entry *freq_entry,
		struct msm_dcvs_energy_curve_coeffs *coeffs)
{ return -ENOSYS; }
static inline int msm_dcvs_scm_event(uint32_t core_id,
		enum msm_dcvs_scm_event event_id,
		uint32_t param0, uint32_t param1,
		uint32_t *ret0, uint32_t *ret1)
{ return -ENOSYS; }

#endif