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/*
* PRUSS Remote Processor specific types
*
* Copyright (C) 2014-2016 Texas Instruments Incorporated - http://www.ti.com/
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Texas Instruments nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _PRU_REMOTEPROC_H_
#define _PRU_REMOTEPROC_H_
/**
* enum pruss_rsc_types - PRU specific resource types
*
* @PRUSS_RSC_INTRS: Resource holding information on PRU PINTC configuration
* @PRUSS_RSC_MAX: Indicates end of known/defined PRU resource types.
* This should be the last definition.
*
* Introduce new custom resource types before PRUSS_RSC_MAX.
*/
enum pruss_rsc_types {
PRUSS_RSC_INTRS = 1,
PRUSS_RSC_MAX = 2,
};
/**
* struct pruss_event_chnl - PRU system events _to_ channel mapping
* @event: number of the system event
* @chnl: channel number assigned to a given @event
*
* PRU system events are mapped to channels, and these channels are mapped
* to host interrupts. Events can be mapped to channels in a one-to-one or
* many-to-one ratio (multiple events per channel), and channels can be
* mapped to host interrupts in a one-to-one or many-to-one ratio (multiple
* channels per interrupt).
*
*/
struct pruss_event_chnl {
s8 event;
s8 chnl;
};
/**
* struct fw_rsc_custom_intrmap - custom resource to define PRU interrupts
* @version: version number for the resource type
* @chnl_host_intr_map: array of PRU channels to host interrupt mappings
* @event_chnl_map_size: number of event_channel mappings defined in
* @event_chnl_map
* @event_chnl_map: pointer to array of events to channel mappings
*
* PRU system events are mapped to channels, and these channels are mapped
* to host interrupts. Events can be mapped to channels in a one-to-one or
* many-to-one ratio (multiple events per channel), and channels can be
* mapped to host interrupts in a one-to-one or many-to-one ratio (multiple
* channels per interrupt).
*
* @da is the device address of the interrupt controller, @channel_map is
* used to specify to which channel, if any, an event is mapped, and @host_map
* specifies to which host, if any, a channel is mapped.
*/
struct fw_rsc_custom_intrmap {
u16 version;
s8 chnl_host_intr_map[10];
u32 event_chnl_map_size;
struct pruss_event_chnl *event_chnl_map;
};
#endif /* _PRU_REMOTEPROC_H_ */
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