76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/*
|
|
* Copyright 2012 Nouveau Community
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Authors: Martin Peres <martin.peres@labri.fr>
|
|
* Ben Skeggs
|
|
*/
|
|
#include "priv.h"
|
|
|
|
#include <subdev/gpio.h>
|
|
|
|
static void
|
|
nv04_bus_intr(struct nvkm_bus *bus)
|
|
{
|
|
struct nvkm_subdev *subdev = &bus->subdev;
|
|
struct nvkm_device *device = subdev->device;
|
|
u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);
|
|
|
|
if (stat & 0x00000001) {
|
|
nvkm_error(subdev, "BUS ERROR\n");
|
|
stat &= ~0x00000001;
|
|
nvkm_wr32(device, 0x001100, 0x00000001);
|
|
}
|
|
|
|
if (stat & 0x00000110) {
|
|
struct nvkm_gpio *gpio = device->gpio;
|
|
if (gpio)
|
|
nvkm_subdev_intr(&gpio->subdev);
|
|
stat &= ~0x00000110;
|
|
nvkm_wr32(device, 0x001100, 0x00000110);
|
|
}
|
|
|
|
if (stat) {
|
|
nvkm_error(subdev, "intr %08x\n", stat);
|
|
nvkm_mask(device, 0x001140, stat, 0x00000000);
|
|
}
|
|
}
|
|
|
|
static void
|
|
nv04_bus_init(struct nvkm_bus *bus)
|
|
{
|
|
struct nvkm_device *device = bus->subdev.device;
|
|
nvkm_wr32(device, 0x001100, 0xffffffff);
|
|
nvkm_wr32(device, 0x001140, 0x00000111);
|
|
}
|
|
|
|
static const struct nvkm_bus_func
|
|
nv04_bus = {
|
|
.init = nv04_bus_init,
|
|
.intr = nv04_bus_intr,
|
|
};
|
|
|
|
int
|
|
nv04_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
|
|
struct nvkm_bus **pbus)
|
|
{
|
|
return nvkm_bus_new_(&nv04_bus, device, type, inst, pbus);
|
|
}
|