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