diff options
Diffstat (limited to 'nvkm/subdev/gpio/base.c')
-rw-r--r-- | nvkm/subdev/gpio/base.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/nvkm/subdev/gpio/base.c b/nvkm/subdev/gpio/base.c deleted file mode 100644 index 7ad99b763..000000000 --- a/nvkm/subdev/gpio/base.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - * Copyright 2011 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 <subdev/bios.h> -#include <subdev/bios/gpio.h> - -#include "priv.h" - -static int -nouveau_gpio_drive(struct nouveau_gpio *gpio, - int idx, int line, int dir, int out) -{ - const struct nouveau_gpio_impl *impl = (void *)nv_object(gpio)->oclass; - return impl->drive ? impl->drive(gpio, line, dir, out) : -ENODEV; -} - -static int -nouveau_gpio_sense(struct nouveau_gpio *gpio, int idx, int line) -{ - const struct nouveau_gpio_impl *impl = (void *)nv_object(gpio)->oclass; - return impl->sense ? impl->sense(gpio, line) : -ENODEV; -} - -static int -nouveau_gpio_find(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line, - struct dcb_gpio_func *func) -{ - struct nouveau_bios *bios = nouveau_bios(gpio); - u8 ver, len; - u16 data; - - if (line == 0xff && tag == 0xff) - return -EINVAL; - - data = dcb_gpio_match(bios, idx, tag, line, &ver, &len, func); - if (data) - return 0; - - /* Apple iMac G4 NV18 */ - if (nv_device_match(nv_object(gpio), 0x0189, 0x10de, 0x0010)) { - if (tag == DCB_GPIO_TVDAC0) { - *func = (struct dcb_gpio_func) { - .func = DCB_GPIO_TVDAC0, - .line = 4, - .log[0] = 0, - .log[1] = 1, - }; - return 0; - } - } - - return -ENOENT; -} - -static int -nouveau_gpio_set(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line, int state) -{ - struct dcb_gpio_func func; - int ret; - - ret = nouveau_gpio_find(gpio, idx, tag, line, &func); - if (ret == 0) { - int dir = !!(func.log[state] & 0x02); - int out = !!(func.log[state] & 0x01); - ret = nouveau_gpio_drive(gpio, idx, func.line, dir, out); - } - - return ret; -} - -static int -nouveau_gpio_get(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line) -{ - struct dcb_gpio_func func; - int ret; - - ret = nouveau_gpio_find(gpio, idx, tag, line, &func); - if (ret == 0) { - ret = nouveau_gpio_sense(gpio, idx, func.line); - if (ret >= 0) - ret = (ret == (func.log[1] & 1)); - } - - return ret; -} - -static void -nouveau_gpio_intr_fini(struct nvkm_event *event, int type, int index) -{ - struct nouveau_gpio *gpio = container_of(event, typeof(*gpio), event); - const struct nouveau_gpio_impl *impl = (void *)nv_object(gpio)->oclass; - impl->intr_mask(gpio, type, 1 << index, 0); -} - -static void -nouveau_gpio_intr_init(struct nvkm_event *event, int type, int index) -{ - struct nouveau_gpio *gpio = container_of(event, typeof(*gpio), event); - const struct nouveau_gpio_impl *impl = (void *)nv_object(gpio)->oclass; - impl->intr_mask(gpio, type, 1 << index, 1 << index); -} - -static int -nouveau_gpio_intr_ctor(struct nouveau_object *object, void *data, u32 size, - struct nvkm_notify *notify) -{ - struct nvkm_gpio_ntfy_req *req = data; - if (!WARN_ON(size != sizeof(*req))) { - notify->size = sizeof(struct nvkm_gpio_ntfy_rep); - notify->types = req->mask; - notify->index = req->line; - return 0; - } - return -EINVAL; -} - -static void -nouveau_gpio_intr(struct nouveau_subdev *subdev) -{ - struct nouveau_gpio *gpio = nouveau_gpio(subdev); - const struct nouveau_gpio_impl *impl = (void *)nv_object(gpio)->oclass; - u32 hi, lo, i; - - impl->intr_stat(gpio, &hi, &lo); - - for (i = 0; (hi | lo) && i < impl->lines; i++) { - struct nvkm_gpio_ntfy_rep rep = { - .mask = (NVKM_GPIO_HI * !!(hi & (1 << i))) | - (NVKM_GPIO_LO * !!(lo & (1 << i))), - }; - nvkm_event_send(&gpio->event, rep.mask, i, &rep, sizeof(rep)); - } -} - -static const struct nvkm_event_func -nouveau_gpio_intr_func = { - .ctor = nouveau_gpio_intr_ctor, - .init = nouveau_gpio_intr_init, - .fini = nouveau_gpio_intr_fini, -}; - -int -_nouveau_gpio_fini(struct nouveau_object *object, bool suspend) -{ - const struct nouveau_gpio_impl *impl = (void *)object->oclass; - struct nouveau_gpio *gpio = nouveau_gpio(object); - u32 mask = (1 << impl->lines) - 1; - - impl->intr_mask(gpio, NVKM_GPIO_TOGGLED, mask, 0); - impl->intr_stat(gpio, &mask, &mask); - - return nouveau_subdev_fini(&gpio->base, suspend); -} - -static struct dmi_system_id gpio_reset_ids[] = { - { - .ident = "Apple Macbook 10,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro10,1"), - } - }, - { } -}; - -int -_nouveau_gpio_init(struct nouveau_object *object) -{ - struct nouveau_gpio *gpio = nouveau_gpio(object); - int ret; - - ret = nouveau_subdev_init(&gpio->base); - if (ret) - return ret; - - if (gpio->reset && dmi_check_system(gpio_reset_ids)) - gpio->reset(gpio, DCB_GPIO_UNUSED); - - return ret; -} - -void -_nouveau_gpio_dtor(struct nouveau_object *object) -{ - struct nouveau_gpio *gpio = (void *)object; - nvkm_event_fini(&gpio->event); - nouveau_subdev_destroy(&gpio->base); -} - -int -nouveau_gpio_create_(struct nouveau_object *parent, - struct nouveau_object *engine, - struct nouveau_oclass *oclass, - int length, void **pobject) -{ - const struct nouveau_gpio_impl *impl = (void *)oclass; - struct nouveau_gpio *gpio; - int ret; - - ret = nouveau_subdev_create_(parent, engine, oclass, 0, "GPIO", "gpio", - length, pobject); - gpio = *pobject; - if (ret) - return ret; - - gpio->find = nouveau_gpio_find; - gpio->set = nouveau_gpio_set; - gpio->get = nouveau_gpio_get; - gpio->reset = impl->reset; - - ret = nvkm_event_init(&nouveau_gpio_intr_func, 2, impl->lines, - &gpio->event); - if (ret) - return ret; - - nv_subdev(gpio)->intr = nouveau_gpio_intr; - return 0; -} - -int -_nouveau_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, - struct nouveau_oclass *oclass, void *data, u32 size, - struct nouveau_object **pobject) -{ - struct nouveau_gpio *gpio; - int ret; - - ret = nouveau_gpio_create(parent, engine, oclass, &gpio); - *pobject = nv_object(gpio); - if (ret) - return ret; - - return 0; -} |