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freebsd-dev/sys/arm/ti/ti_pruss.h

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Add a driver for the TI Programmable Realtime Unit Subsystem. This is only a userland accessibility driver. It mmaps the hardware region to userland and posts interrupt notifications via kqueue.
2013-11-16 08:23:15 +00:00
/*-
sys/arm: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
2017-11-27 15:04:10 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
Add a driver for the TI Programmable Realtime Unit Subsystem. This is only a userland accessibility driver. It mmaps the hardware region to userland and posts interrupt notifications via kqueue.
2013-11-16 08:23:15 +00:00
* Copyright (c) 2013 Rui Paulo <rpaulo@FreeBSD.org>
Enhance the interrupt capabilities of ti_pruss driver. The existing ti_pruss driver for the PRUSS Hardware provided by the AM335x ARM CPU has basic interrupt capabilities. This updated driver provides some more options: - Sysctl based configuration for the interrupts (for some examples, see the test plan in the phabricator review cited below). - A device file (/dev/pruss0.irqN) for each enabled interrupt. This file can be read and the device blocks if no irq has happened or returns an uint64_t timestamp based on nanouptime(). - Each interrupt device file provides kqueue-based event notification, blocking read(), or select(). Submitted by: Manuel Stuhn <freebsdnewbie@freenet.de> Differential Revision: https://reviews.freebsd.org/D11959
2017-10-02 01:03:18 +00:00
* Copyright (c) 2017 Manuel Stuehn
Add a driver for the TI Programmable Realtime Unit Subsystem. This is only a userland accessibility driver. It mmaps the hardware region to userland and posts interrupt notifications via kqueue.
2013-11-16 08:23:15 +00:00
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _TI_PRUSS_H_
#define _TI_PRUSS_H_
#define PRUSS_AM18XX_INTC 0x04000
#define PRUSS_AM18XX_REV 0x4e825900
#define PRUSS_AM33XX_REV 0x4e82A900
#define PRUSS_AM33XX_INTC 0x20000
Enhance the interrupt capabilities of ti_pruss driver. The existing ti_pruss driver for the PRUSS Hardware provided by the AM335x ARM CPU has basic interrupt capabilities. This updated driver provides some more options: - Sysctl based configuration for the interrupts (for some examples, see the test plan in the phabricator review cited below). - A device file (/dev/pruss0.irqN) for each enabled interrupt. This file can be read and the device blocks if no irq has happened or returns an uint64_t timestamp based on nanouptime(). - Each interrupt device file provides kqueue-based event notification, blocking read(), or select(). Submitted by: Manuel Stuhn <freebsdnewbie@freenet.de> Differential Revision: https://reviews.freebsd.org/D11959
2017-10-02 01:03:18 +00:00
#define PRUSS_INTC_GER (PRUSS_AM33XX_INTC + 0x0010)
#define PRUSS_INTC_SISR (PRUSS_AM33XX_INTC + 0x0020)
#define PRUSS_INTC_SICR (PRUSS_AM33XX_INTC + 0x0024)
#define PRUSS_INTC_EISR (PRUSS_AM33XX_INTC + 0x0028)
#define PRUSS_INTC_EICR (PRUSS_AM33XX_INTC + 0x002C)
#define PRUSS_INTC_HIEISR (PRUSS_AM33XX_INTC + 0x0034)
#define PRUSS_INTC_HIDISR (PRUSS_AM33XX_INTC + 0x0038)
#define PRUSS_INTC_SECR0 (PRUSS_AM33XX_INTC + 0x0280)
#define PRUSS_INTC_SECR1 (PRUSS_AM33XX_INTC + 0x0284)
#define PRUSS_INTC_CMR_BASE (PRUSS_AM33XX_INTC + 0x0400)
#define PRUSS_INTC_HMR_BASE (PRUSS_AM33XX_INTC + 0x0800)
#define PRUSS_INTC_HIPIR_BASE (PRUSS_AM33XX_INTC + 0x0900)
#define PRUSS_INTC_SIPR0 (PRUSS_AM33XX_INTC + 0x0D00)
#define PRUSS_INTC_SIPR1 (PRUSS_AM33XX_INTC + 0x0D04)
#define PRUSS_INTC_SITR0 (PRUSS_AM33XX_INTC + 0x0D80)
#define PRUSS_INTC_SITR1 (PRUSS_AM33XX_INTC + 0x0D84)
#define PRUSS_INTC_HIER (PRUSS_AM33XX_INTC + 0x1500)
ti_pruss: pass the correct IRQ to userland. Also, fix several problems with the kqueue notification. Submitted by: Manuel Stühn freebsdnewbie at freenet.de
2015-05-20 06:23:01 +00:00
Add a driver for the TI Programmable Realtime Unit Subsystem. This is only a userland accessibility driver. It mmaps the hardware region to userland and posts interrupt notifications via kqueue.
2013-11-16 08:23:15 +00:00
#endif /* _TI_PRUSS_H_ */
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