diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.c new file mode 100644 index 000000000000..498ab4b8a9af --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.c @@ -0,0 +1,175 @@ +/* + * Copyright 2014 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 <core/os.h> +#include <nvif/event.h> + +#include <subdev/gpio.h> + +#include "conn.h" +#include "outp.h" + +static int +nvkm_connector_hpd(struct nvkm_notify *notify) +{ + struct nvkm_connector *conn = container_of(notify, typeof(*conn), hpd); + struct nouveau_disp *disp = nouveau_disp(conn); + struct nouveau_gpio *gpio = nouveau_gpio(conn); + const struct nvkm_gpio_ntfy_rep *line = notify->data; + struct nvif_notify_conn_rep_v0 rep; + int index = conn->index; + + DBG("HPD: %d\n", line->mask); + + if (!gpio->get(gpio, 0, DCB_GPIO_UNUSED, conn->hpd.index)) + rep.mask = NVIF_NOTIFY_CONN_V0_UNPLUG; + else + rep.mask = NVIF_NOTIFY_CONN_V0_PLUG; + rep.version = 0; + + nvkm_event_send(&disp->hpd, rep.mask, index, &rep, sizeof(rep)); + return NVKM_NOTIFY_KEEP; +} + +int +_nvkm_connector_fini(struct nouveau_object *object, bool suspend) +{ + struct nvkm_connector *conn = (void *)object; + nvkm_notify_put(&conn->hpd); + return nouveau_object_fini(&conn->base, suspend); +} + +int +_nvkm_connector_init(struct nouveau_object *object) +{ + struct nvkm_connector *conn = (void *)object; + int ret = nouveau_object_init(&conn->base); + if (ret == 0) + nvkm_notify_get(&conn->hpd); + return ret; +} + +void +_nvkm_connector_dtor(struct nouveau_object *object) +{ + struct nvkm_connector *conn = (void *)object; + nvkm_notify_fini(&conn->hpd); + nouveau_object_destroy(&conn->base); +} + +int +nvkm_connector_create_(struct nouveau_object *parent, + struct nouveau_object *engine, + struct nouveau_oclass *oclass, + struct nvbios_connE *info, int index, + int length, void **pobject) +{ + static const u8 hpd[] = { 0x07, 0x08, 0x51, 0x52, 0x5e, 0x5f, 0x60 }; + struct nouveau_disp *disp = nouveau_disp(parent); + struct nouveau_gpio *gpio = nouveau_gpio(parent); + struct nvkm_connector *conn; + struct nvkm_output *outp; + struct dcb_gpio_func func; + int ret; + + list_for_each_entry(outp, &disp->outp, head) { + if (outp->conn && outp->conn->index == index) { + atomic_inc(&nv_object(outp->conn)->refcount); + *pobject = outp->conn; + return 1; + } + } + + ret = nouveau_object_create_(parent, engine, oclass, 0, length, pobject); + conn = *pobject; + if (ret) + return ret; + + conn->info = *info; + conn->index = index; + + DBG("type %02x loc %d hpd %02x dp %x di %x sr %x lcdid %x\n", + info->type, info->location, info->hpd, info->dp, + info->di, info->sr, info->lcdid); + + if ((info->hpd = ffs(info->hpd))) { + if (--info->hpd >= ARRAY_SIZE(hpd)) { + ERR("hpd %02x unknown\n", info->hpd); + return 0; + } + info->hpd = hpd[info->hpd]; + + ret = gpio->find(gpio, 0, info->hpd, DCB_GPIO_UNUSED, &func); + if (ret) { + ERR("func %02x lookup failed, %d\n", info->hpd, ret); + return 0; + } + + ret = nvkm_notify_init(NULL, &gpio->event, nvkm_connector_hpd, + true, &(struct nvkm_gpio_ntfy_req) { + .mask = NVKM_GPIO_TOGGLED, + .line = func.line, + }, + sizeof(struct nvkm_gpio_ntfy_req), + sizeof(struct nvkm_gpio_ntfy_rep), + &conn->hpd); + if (ret) { + ERR("func %02x failed, %d\n", info->hpd, ret); + } else { + DBG("func %02x (HPD)\n", info->hpd); + } + } + + return 0; +} + +int +_nvkm_connector_ctor(struct nouveau_object *parent, + struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *info, u32 index, + struct nouveau_object **pobject) +{ + struct nvkm_connector *conn; + int ret; + + ret = nvkm_connector_create(parent, engine, oclass, info, index, &conn); + *pobject = nv_object(conn); + if (ret) + return ret; + + return 0; +} + +struct nouveau_oclass * +nvkm_connector_oclass = &(struct nvkm_connector_impl) { + .base = { + .handle = 0, + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = _nvkm_connector_ctor, + .dtor = _nvkm_connector_dtor, + .init = _nvkm_connector_init, + .fini = _nvkm_connector_fini, + }, + }, +}.base; |