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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* PRU-ICSS Subsystem user interfaces
*
* Copyright (C) 2015-2022 Texas Instruments Incorporated - http://www.ti.com
* Suman Anna <s-anna@ti.com>
*/
#ifndef __LINUX_PRUSS_H
#define __LINUX_PRUSS_H
#include <linux/device.h>
#include <linux/types.h>
#define PRU_RPROC_DRVNAME "pru-rproc"
/**
* enum pruss_pru_id - PRU core identifiers
* @PRUSS_PRU0: PRU Core 0.
* @PRUSS_PRU1: PRU Core 1.
* @PRUSS_NUM_PRUS: Total number of PRU Cores available.
*
*/
enum pruss_pru_id {
PRUSS_PRU0 = 0,
PRUSS_PRU1,
PRUSS_NUM_PRUS,
};
/*
* enum pru_ctable_idx - Configurable Constant table index identifiers
*/
enum pru_ctable_idx {
PRU_C24 = 0,
PRU_C25,
PRU_C26,
PRU_C27,
PRU_C28,
PRU_C29,
PRU_C30,
PRU_C31,
};
struct device_node;
struct rproc;
#if IS_ENABLED(CONFIG_PRU_REMOTEPROC)
struct rproc *pru_rproc_get(struct device_node *np, int index,
enum pruss_pru_id *pru_id);
void pru_rproc_put(struct rproc *rproc);
int pru_rproc_set_ctable(struct rproc *rproc, enum pru_ctable_idx c, u32 addr);
#else
static inline struct rproc *
pru_rproc_get(struct device_node *np, int index, enum pruss_pru_id *pru_id)
{
return ERR_PTR(-EOPNOTSUPP);
}
static inline void pru_rproc_put(struct rproc *rproc) { }
static inline int pru_rproc_set_ctable(struct rproc *rproc,
enum pru_ctable_idx c, u32 addr)
{
return -EOPNOTSUPP;
}
#endif /* CONFIG_PRU_REMOTEPROC */
static inline bool is_pru_rproc(struct device *dev)
{
const char *drv_name = dev_driver_string(dev);
if (strncmp(drv_name, PRU_RPROC_DRVNAME, sizeof(PRU_RPROC_DRVNAME)))
return false;
return true;
}
#endif /* __LINUX_PRUSS_H */