| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * 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: Ben Skeggs |
| */ |
| |
| #include "priv.h" |
| |
| struct nve0_gpio_priv { |
| struct nouveau_gpio base; |
| }; |
| |
| void |
| nve0_gpio_intr(struct nouveau_subdev *subdev) |
| { |
| struct nve0_gpio_priv *priv = (void *)subdev; |
| u32 intr0 = nv_rd32(priv, 0xdc00) & nv_rd32(priv, 0xdc08); |
| u32 intr1 = nv_rd32(priv, 0xdc80) & nv_rd32(priv, 0xdc88); |
| u32 hi = (intr0 & 0x0000ffff) | (intr1 << 16); |
| u32 lo = (intr0 >> 16) | (intr1 & 0xffff0000); |
| int i; |
| |
| for (i = 0; (hi | lo) && i < 32; i++) { |
| if ((hi | lo) & (1 << i)) |
| nouveau_event_trigger(priv->base.events, i); |
| } |
| |
| nv_wr32(priv, 0xdc00, intr0); |
| nv_wr32(priv, 0xdc88, intr1); |
| } |
| |
| void |
| nve0_gpio_intr_enable(struct nouveau_event *event, int line) |
| { |
| const u32 addr = line < 16 ? 0xdc00 : 0xdc80; |
| const u32 mask = 0x00010001 << (line & 0xf); |
| nv_wr32(event->priv, addr + 0x08, mask); |
| nv_mask(event->priv, addr + 0x00, mask, mask); |
| } |
| |
| void |
| nve0_gpio_intr_disable(struct nouveau_event *event, int line) |
| { |
| const u32 addr = line < 16 ? 0xdc00 : 0xdc80; |
| const u32 mask = 0x00010001 << (line & 0xf); |
| nv_wr32(event->priv, addr + 0x08, mask); |
| nv_mask(event->priv, addr + 0x00, mask, 0x00000000); |
| } |
| |
| int |
| nve0_gpio_fini(struct nouveau_object *object, bool suspend) |
| { |
| struct nve0_gpio_priv *priv = (void *)object; |
| nv_wr32(priv, 0xdc08, 0x00000000); |
| nv_wr32(priv, 0xdc88, 0x00000000); |
| return nouveau_gpio_fini(&priv->base, suspend); |
| } |
| |
| int |
| nve0_gpio_init(struct nouveau_object *object) |
| { |
| struct nve0_gpio_priv *priv = (void *)object; |
| int ret; |
| |
| ret = nouveau_gpio_init(&priv->base); |
| if (ret) |
| return ret; |
| |
| nv_wr32(priv, 0xdc00, 0xffffffff); |
| nv_wr32(priv, 0xdc80, 0xffffffff); |
| return 0; |
| } |
| |
| void |
| nve0_gpio_dtor(struct nouveau_object *object) |
| { |
| struct nve0_gpio_priv *priv = (void *)object; |
| nouveau_gpio_destroy(&priv->base); |
| } |
| |
| static int |
| nve0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nve0_gpio_priv *priv; |
| int ret; |
| |
| ret = nouveau_gpio_create(parent, engine, oclass, 32, &priv); |
| *pobject = nv_object(priv); |
| if (ret) |
| return ret; |
| |
| priv->base.reset = nvd0_gpio_reset; |
| priv->base.drive = nvd0_gpio_drive; |
| priv->base.sense = nvd0_gpio_sense; |
| priv->base.events->priv = priv; |
| priv->base.events->enable = nve0_gpio_intr_enable; |
| priv->base.events->disable = nve0_gpio_intr_disable; |
| nv_subdev(priv)->intr = nve0_gpio_intr; |
| return 0; |
| } |
| |
| struct nouveau_oclass |
| nve0_gpio_oclass = { |
| .handle = NV_SUBDEV(GPIO, 0xe0), |
| .ofuncs = &(struct nouveau_ofuncs) { |
| .ctor = nve0_gpio_ctor, |
| .dtor = nv50_gpio_dtor, |
| .init = nve0_gpio_init, |
| .fini = nve0_gpio_fini, |
| }, |
| }; |