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/* Copyright (c) 2016-2017, 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 _SDE_RSC_PRIV_H_
#define _SDE_RSC_PRIV_H_
#include <linux/kernel.h>
#include <linux/sde_io_util.h>
#include <linux/sde_rsc.h>
#include <soc/qcom/tcs.h>
#include "sde_power_handle.h"
#define SDE_RSC_COMPATIBLE "disp_rscc"
#define MAX_RSC_COUNT 5
struct sde_rsc_priv;
/**
* rsc_mode_req: sde rsc mode request information
* MODE_READ: read vsync status
* MODE0_UPDATE: mode0 status , this should be 0x0
* MODE1_UPDATE: mode1 status , this should be 0x1
* MODE2_UPDATE: mode2 status , this should be 0x2
*/
enum rsc_mode_req {
MODE_READ,
MODE0_UPDATE = 0x1,
MODE1_UPDATE = 0x2,
MODE2_UPDATE = 0x3,
};
/**
* rsc_vsync_req: sde rsc vsync request information
* VSYNC_READ: read vsync status
* VSYNC_ENABLE: enable rsc wrapper vsync status
* VSYNC_DISABLE: disable rsc wrapper vsync status
*/
enum rsc_vsync_req {
VSYNC_READ,
VSYNC_ENABLE,
VSYNC_DISABLE,
};
/**
* struct sde_rsc_hw_ops - sde resource state coordinator hardware ops
* @init: Initialize the sequencer, solver, qtimer,
etc. hardware blocks on RSC.
* @tcs_wait: Waits for TCS block OK to allow sending a
* TCS command.
* @hw_vsync: Enables the vsync on RSC block.
* @tcs_use_ok: set TCS set to high to allow RSC to use it.
* @mode2_entry: Request to entry mode2 when all clients are
* requesting power collapse.
* @mode2_exit: Request to exit mode2 when one of the client
* is requesting against the power collapse
* @is_amc_mode: Check current amc mode status
* @state_update: Enable/override the solver based on rsc state
* status (command/video)
* @mode_show: shows current mode status, mode0/1/2
* @debug_show: Show current debug status.
*/
struct sde_rsc_hw_ops {
int (*init)(struct sde_rsc_priv *rsc);
int (*tcs_wait)(struct sde_rsc_priv *rsc);
int (*hw_vsync)(struct sde_rsc_priv *rsc, enum rsc_vsync_req request,
char *buffer, int buffer_size, u32 mode);
int (*tcs_use_ok)(struct sde_rsc_priv *rsc);
int (*mode2_entry)(struct sde_rsc_priv *rsc);
int (*mode2_exit)(struct sde_rsc_priv *rsc);
bool (*is_amc_mode)(struct sde_rsc_priv *rsc);
int (*state_update)(struct sde_rsc_priv *rsc, enum sde_rsc_state state);
int (*debug_show)(struct seq_file *s, struct sde_rsc_priv *rsc);
int (*mode_ctrl)(struct sde_rsc_priv *rsc, enum rsc_mode_req request,
char *buffer, int buffer_size, bool mode);
};
/**
* struct sde_rsc_timer_config: this is internal configuration between
* rsc and rsc_hw API.
*
* @static_wakeup_time_ns: wrapper backoff time in nano seconds
* @rsc_backoff_time_ns: rsc backoff time in nano seconds
* @pdc_backoff_time_ns: pdc backoff time in nano seconds
* @rsc_mode_threshold_time_ns: rsc mode threshold time in nano seconds
* @rsc_time_slot_0_ns: mode-0 time slot threshold in nano seconds
* @rsc_time_slot_1_ns: mode-1 time slot threshold in nano seconds
* @rsc_time_slot_2_ns: mode-2 time slot threshold in nano seconds
*/
struct sde_rsc_timer_config {
u32 static_wakeup_time_ns;
u32 rsc_backoff_time_ns;
u32 pdc_backoff_time_ns;
u32 rsc_mode_threshold_time_ns;
u32 rsc_time_slot_0_ns;
u32 rsc_time_slot_1_ns;
u32 rsc_time_slot_2_ns;
};
/**
* struct sde_rsc_priv: sde resource state coordinator(rsc) private handle
* @version: rsc sequence version
* @phandle: module power handle for clocks
* @pclient: module power client of phandle
* @fs: "MDSS GDSC" handle
*
* @drv_io: sde drv io data mapping
* @wrapper_io: wrapper io data mapping
*
* @client_list: current rsc client list handle
* @event_list: current rsc event list handle
* @client_lock: current rsc client synchronization lock
*
* timer_config: current rsc timer configuration
* cmd_config: current panel config
* current_state: current rsc state (video/command), solver
* override/enabled.
* debug_mode: enables the logging for each register read/write
* debugfs_root: debugfs file system root node
*
* hw_ops: sde rsc hardware operations
* power_collapse: if all clients are in IDLE state then it enters in
* mode2 state and enable the power collapse state
* power_collapse_block:By default, rsc move to mode-2 if all clients are in
* invalid state. It can be blocked by this boolean entry.
* primary_client: A client which is allowed to make command state request
* and ab/ib vote on display rsc
* master_drm: Primary client waits for vsync on this drm object based
* on crtc id
*/
struct sde_rsc_priv {
u32 version;
struct sde_power_handle phandle;
struct sde_power_client *pclient;
struct regulator *fs;
struct dss_io_data drv_io;
struct dss_io_data wrapper_io;
struct list_head client_list;
struct list_head event_list;
struct mutex client_lock;
struct sde_rsc_timer_config timer_config;
struct sde_rsc_cmd_config cmd_config;
u32 current_state;
u32 debug_mode;
struct dentry *debugfs_root;
struct sde_rsc_hw_ops hw_ops;
bool power_collapse;
bool power_collapse_block;
struct sde_rsc_client *primary_client;
struct drm_device *master_drm;
};
/**
* sde_rsc_hw_register() - register hardware API
*
* @client: Client pointer provided by sde_rsc_client_create().
*
* Return: error code.
*/
int sde_rsc_hw_register(struct sde_rsc_priv *rsc);
#endif /* _SDE_RSC_PRIV_H_ */