/* * 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); }