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/*
* 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 "nv04.h"
#include <subdev/gpio.h>
static void
nv04_bus_intr(struct nvkm_subdev *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 int
nv04_bus_init(struct nvkm_object *object)
{
struct nvkm_bus *bus = (void *)object;
struct nvkm_device *device = bus->subdev.device;
nvkm_wr32(device, 0x001100, 0xffffffff);
nvkm_wr32(device, 0x001140, 0x00000111);
return nvkm_bus_init(bus);
}
int
nv04_bus_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nv04_bus_impl *impl = (void *)oclass;
struct nvkm_bus *bus;
int ret;
ret = nvkm_bus_create(parent, engine, oclass, &bus);
*pobject = nv_object(bus);
if (ret)
return ret;
nv_subdev(bus)->intr = impl->intr;
bus->hwsq_exec = impl->hwsq_exec;
bus->hwsq_size = impl->hwsq_size;
return 0;
}
struct nvkm_oclass *
nv04_bus_oclass = &(struct nv04_bus_impl) {
.base.handle = NV_SUBDEV(BUS, 0x04),
.base.ofuncs = &(struct nvkm_ofuncs) {
.ctor = nv04_bus_ctor,
.dtor = _nvkm_bus_dtor,
.init = nv04_bus_init,
.fini = _nvkm_bus_fini,
},
.intr = nv04_bus_intr,
}.base;
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