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Pull the common FDT interrupt values into a new header rather than be magic

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numbers.

Sponsored by:	DARPA, AFRL
This commit is contained in:
andrew 2016-10-26 15:18:08 +00:00
parent f1f744e666
commit bbef42a78d
3 changed files with 55 additions and 7 deletions
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7
sys/arm/arm/gic.c
View File

@ -62,6 +62,7 @@ __FBSDID("$FreeBSD$");
#include <machine/smp.h>
#include <dev/fdt/fdt_common.h>
#include <dev/fdt/fdt_intr.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <arm/arm/gic.h>
@ -821,13 +822,15 @@ gic_map_fdt(device_t dev, u_int ncells, pcell_t *cells, u_int *irqp,
}
tripol = cells[2] & 0xff;
if (tripol & 0xf0 || (tripol & 0x0a && cells[0] == 0))
if (tripol & 0xf0 || (tripol & FDT_INTR_LOW_MASK &&
cells[0] == 0))
device_printf(dev, "unsupported trigger/polarity "
"configuration 0x%02x\n", tripol);
*irqp = irq;
*polp = INTR_POLARITY_CONFORM;
*trigp = tripol & 0x03 ? INTR_TRIGGER_EDGE : INTR_TRIGGER_LEVEL;
*trigp = tripol & FDT_INTR_EDGE_MASK ?
INTR_TRIGGER_EDGE : INTR_TRIGGER_LEVEL;
return (0);
}
return (EINVAL);

11
sys/arm64/arm64/gic_v3.c
View File

@ -59,6 +59,7 @@ __FBSDID("$FreeBSD$");
#include <machine/intr.h>
#ifdef FDT
#include <dev/fdt/fdt_intr.h>
#include <dev/ofw/ofw_bus_subr.h>
#endif
@ -470,20 +471,20 @@ gic_map_fdt(device_t dev, u_int ncells, pcell_t *cells, u_int *irqp,
return (EINVAL);
}
switch (cells[2] & 0xf) {
case 1:
switch (cells[2] & FDT_INTR_MASK) {
case FDT_INTR_EDGE_RISING:
*trigp = INTR_TRIGGER_EDGE;
*polp = INTR_POLARITY_HIGH;
break;
case 2:
case FDT_INTR_EDGE_FALLING:
*trigp = INTR_TRIGGER_EDGE;
*polp = INTR_POLARITY_LOW;
break;
case 4:
case FDT_INTR_LEVEL_HIGH:
*trigp = INTR_TRIGGER_LEVEL;
*polp = INTR_POLARITY_HIGH;
break;
case 8:
case FDT_INTR_LEVEL_LOW:
*trigp = INTR_TRIGGER_LEVEL;
*polp = INTR_POLARITY_LOW;
break;

44
sys/dev/fdt/fdt_intr.h Normal file
View File

@ -0,0 +1,44 @@
/*-
* Copyright (c) 2016 Andrew Turner <andrew@FreeBSD.org>
* All rights reserved.
*
* This software was developed by SRI International and the University of
* Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
* ("CTSRD"), as part of the DARPA CRASH research programme.
*
* 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 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _FDT_INTR_H_
#define _FDT_INTR_H_
#define FDT_INTR_EDGE_RISING 1
#define FDT_INTR_EDGE_FALLING 2
#define FDT_INTR_LEVEL_HIGH 4
#define FDT_INTR_LEVEL_LOW 8
#define FDT_INTR_LOW_MASK (FDT_INTR_EDGE_FALLING | FDT_INTR_LEVEL_LOW)
#define FDT_INTR_EDGE_MASK (FDT_INTR_EDGE_RISING | FDT_INTR_EDGE_FALLING)
#define FDT_INTR_MASK 0xf
#endif /* _FDT_INTR_H_ */