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a10220bb MP |
1 | /* |
2 | * Copyright 2012 Nouveau Community | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Martin Peres <martin.peres@labri.fr> | |
23 | * Ben Skeggs | |
24 | */ | |
bb23f9d7 BS |
25 | #include "priv.h" |
26 | ||
27 | #include <subdev/gpio.h> | |
a10220bb | 28 | |
a699a85a BS |
29 | #include <subdev/gpio.h> |
30 | ||
cd897837 | 31 | static void |
bb23f9d7 | 32 | nv04_bus_intr(struct nvkm_bus *bus) |
a10220bb | 33 | { |
bb23f9d7 | 34 | struct nvkm_subdev *subdev = &bus->subdev; |
a699a85a | 35 | struct nvkm_device *device = subdev->device; |
14caba44 | 36 | u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); |
a10220bb MP |
37 | |
38 | if (stat & 0x00000001) { | |
a699a85a | 39 | nvkm_error(subdev, "BUS ERROR\n"); |
a10220bb | 40 | stat &= ~0x00000001; |
14caba44 | 41 | nvkm_wr32(device, 0x001100, 0x00000001); |
a10220bb MP |
42 | } |
43 | ||
44 | if (stat & 0x00000110) { | |
a699a85a | 45 | struct nvkm_gpio *gpio = device->gpio; |
6cf813fb BS |
46 | if (gpio) |
47 | nvkm_subdev_intr(&gpio->subdev); | |
a10220bb | 48 | stat &= ~0x00000110; |
14caba44 | 49 | nvkm_wr32(device, 0x001100, 0x00000110); |
a10220bb MP |
50 | } |
51 | ||
52 | if (stat) { | |
a699a85a | 53 | nvkm_error(subdev, "intr %08x\n", stat); |
14caba44 | 54 | nvkm_mask(device, 0x001140, stat, 0x00000000); |
a10220bb MP |
55 | } |
56 | } | |
57 | ||
bb23f9d7 BS |
58 | static void |
59 | nv04_bus_init(struct nvkm_bus *bus) | |
48ae0b35 | 60 | { |
14caba44 | 61 | struct nvkm_device *device = bus->subdev.device; |
14caba44 BS |
62 | nvkm_wr32(device, 0x001100, 0xffffffff); |
63 | nvkm_wr32(device, 0x001140, 0x00000111); | |
48ae0b35 BS |
64 | } |
65 | ||
bb23f9d7 BS |
66 | static const struct nvkm_bus_func |
67 | nv04_bus = { | |
68 | .init = nv04_bus_init, | |
69 | .intr = nv04_bus_intr, | |
70 | }; | |
71 | ||
48ae0b35 | 72 | int |
bb23f9d7 | 73 | nv04_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus) |
a10220bb | 74 | { |
bb23f9d7 | 75 | return nvkm_bus_new_(&nv04_bus, device, index, pbus); |
a10220bb | 76 | } |