cregit-Linux how code gets into the kernel

Release 4.7 include/linux/scpi_protocol.h

Directory: include/linux
/*
 * SCPI Message Protocol driver header
 *
 * Copyright (C) 2014 ARM Ltd.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
#include <linux/types.h>


struct scpi_opp {
	
u32 freq;
	
u32 m_volt;
} 
__packed;


struct scpi_dvfs_info {
	
unsigned int count;
	
unsigned int latency; /* in nanoseconds */
	
struct scpi_opp *opps;
};


enum scpi_sensor_class {
	
TEMPERATURE,
	
VOLTAGE,
	
CURRENT,
	
POWER,
	
ENERGY,
};


struct scpi_sensor_info {
	
u16 sensor_id;
	
u8 class;
	
u8 trigger_type;
	
char name[20];
} 
__packed;

/**
 * struct scpi_ops - represents the various operations provided
 *      by SCP through SCPI message protocol
 * @get_version: returns the major and minor revision on the SCPI
 *      message protocol
 * @clk_get_range: gets clock range limit(min - max in Hz)
 * @clk_get_val: gets clock value(in Hz)
 * @clk_set_val: sets the clock value, setting to 0 will disable the
 *      clock (if supported)
 * @dvfs_get_idx: gets the Operating Point of the given power domain.
 *      OPP is an index to the list return by @dvfs_get_info
 * @dvfs_set_idx: sets the Operating Point of the given power domain.
 *      OPP is an index to the list return by @dvfs_get_info
 * @dvfs_get_info: returns the DVFS capabilities of the given power
 *      domain. It includes the OPP list and the latency information
 */

struct scpi_ops {
	
u32 (*get_version)(void);
	
int (*clk_get_range)(u16, unsigned long *, unsigned long *);
	
unsigned long (*clk_get_val)(u16);
	
int (*clk_set_val)(u16, unsigned long);
	
int (*dvfs_get_idx)(u8);
	
int (*dvfs_set_idx)(u8, u8);
	
struct scpi_dvfs_info *(*dvfs_get_info)(u8);
	
int (*sensor_get_capability)(u16 *sensors);
	
int (*sensor_get_info)(u16 sensor_id, struct scpi_sensor_info *);
	
int (*sensor_get_value)(u16, u64 *);
};

#if IS_REACHABLE(CONFIG_ARM_SCPI_PROTOCOL)
struct scpi_ops *get_scpi_ops(void);
#else

static inline struct scpi_ops *get_scpi_ops(void) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
sudeep hollasudeep holla14100.00%1100.00%
Total14100.00%1100.00%

#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
sudeep hollasudeep holla15468.75%360.00%
punit agrawalpunit agrawal6930.80%120.00%
arnd bergmannarnd bergmann10.45%120.00%
Total224100.00%5100.00%
Directory: include/linux
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