/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include <core/client.h>
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#include <core/device.h>
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#include <core/notify.h>
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#include <core/option.h>
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#include <nvif/class.h>
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#include <nvif/event.h>
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#include <nvif/if0000.h>
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#include <nvif/unpack.h>
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static int
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nvkm_uclient_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
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struct nvkm_object **pobject)
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{
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union {
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struct nvif_client_v0 v0;
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} *args = argv;
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struct nvkm_client *client;
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int ret = -ENOSYS;
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if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))){
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args->v0.name[sizeof(args->v0.name) - 1] = 0;
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ret = nvkm_client_new(args->v0.name, args->v0.device, NULL,
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NULL, oclass->client->ntfy, &client);
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if (ret)
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return ret;
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} else
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return ret;
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client->object.client = oclass->client;
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client->object.handle = oclass->handle;
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client->object.route = oclass->route;
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client->object.token = oclass->token;
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client->object.object = oclass->object;
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client->debug = oclass->client->debug;
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*pobject = &client->object;
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return 0;
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}
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const struct nvkm_sclass
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nvkm_uclient_sclass = {
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.oclass = NVIF_CLASS_CLIENT,
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.minver = 0,
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.maxver = 0,
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.ctor = nvkm_uclient_new,
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};
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struct nvkm_client_notify {
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struct nvkm_client *client;
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struct nvkm_notify n;
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u8 version;
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u8 size;
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union {
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struct nvif_notify_rep_v0 v0;
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} rep;
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};
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static int
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nvkm_client_notify(struct nvkm_notify *n)
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{
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struct nvkm_client_notify *notify = container_of(n, typeof(*notify), n);
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struct nvkm_client *client = notify->client;
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return client->ntfy(¬ify->rep, notify->size, n->data, n->size);
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}
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int
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nvkm_client_notify_put(struct nvkm_client *client, int index)
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{
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if (index < ARRAY_SIZE(client->notify)) {
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if (client->notify[index]) {
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nvkm_notify_put(&client->notify[index]->n);
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return 0;
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}
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}
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return -ENOENT;
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}
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int
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nvkm_client_notify_get(struct nvkm_client *client, int index)
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{
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if (index < ARRAY_SIZE(client->notify)) {
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if (client->notify[index]) {
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nvkm_notify_get(&client->notify[index]->n);
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return 0;
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}
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}
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return -ENOENT;
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}
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int
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nvkm_client_notify_del(struct nvkm_client *client, int index)
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{
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if (index < ARRAY_SIZE(client->notify)) {
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if (client->notify[index]) {
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nvkm_notify_fini(&client->notify[index]->n);
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kfree(client->notify[index]);
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client->notify[index] = NULL;
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return 0;
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}
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}
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return -ENOENT;
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}
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int
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nvkm_client_notify_new(struct nvkm_object *object,
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struct nvkm_event *event, void *data, u32 size)
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{
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struct nvkm_client *client = object->client;
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struct nvkm_client_notify *notify;
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union {
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struct nvif_notify_req_v0 v0;
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} *req = data;
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u8 index, reply;
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int ret = -ENOSYS;
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for (index = 0; index < ARRAY_SIZE(client->notify); index++) {
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if (!client->notify[index])
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break;
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}
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if (index == ARRAY_SIZE(client->notify))
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return -ENOSPC;
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notify = kzalloc(sizeof(*notify), GFP_KERNEL);
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if (!notify)
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return -ENOMEM;
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nvif_ioctl(object, "notify new size %d\n", size);
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if (!(ret = nvif_unpack(ret, &data, &size, req->v0, 0, 0, true))) {
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nvif_ioctl(object, "notify new vers %d reply %d route %02x "
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"token %llx\n", req->v0.version,
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req->v0.reply, req->v0.route, req->v0.token);
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notify->version = req->v0.version;
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notify->size = sizeof(notify->rep.v0);
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notify->rep.v0.version = req->v0.version;
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notify->rep.v0.route = req->v0.route;
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notify->rep.v0.token = req->v0.token;
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reply = req->v0.reply;
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}
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if (ret == 0) {
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ret = nvkm_notify_init(object, event, nvkm_client_notify,
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false, data, size, reply, ¬ify->n);
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if (ret == 0) {
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client->notify[index] = notify;
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notify->client = client;
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return index;
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}
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}
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kfree(notify);
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return ret;
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}
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static const struct nvkm_object_func nvkm_client;
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struct nvkm_client *
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nvkm_client_search(struct nvkm_client *client, u64 handle)
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{
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struct nvkm_object *object;
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object = nvkm_object_search(client, handle, &nvkm_client);
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if (IS_ERR(object))
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return (void *)object;
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return nvkm_client(object);
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}
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static int
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nvkm_client_mthd_devlist(struct nvkm_client *client, void *data, u32 size)
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{
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union {
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struct nvif_client_devlist_v0 v0;
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} *args = data;
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int ret = -ENOSYS;
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nvif_ioctl(&client->object, "client devlist size %d\n", size);
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if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
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nvif_ioctl(&client->object, "client devlist vers %d count %d\n",
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args->v0.version, args->v0.count);
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if (size == sizeof(args->v0.device[0]) * args->v0.count) {
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ret = nvkm_device_list(args->v0.device, args->v0.count);
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if (ret >= 0) {
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args->v0.count = ret;
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ret = 0;
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}
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} else {
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ret = -EINVAL;
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}
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}
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return ret;
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}
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static int
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nvkm_client_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
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{
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struct nvkm_client *client = nvkm_client(object);
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switch (mthd) {
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case NVIF_CLIENT_V0_DEVLIST:
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return nvkm_client_mthd_devlist(client, data, size);
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default:
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break;
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}
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return -EINVAL;
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}
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static int
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nvkm_client_child_new(const struct nvkm_oclass *oclass,
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void *data, u32 size, struct nvkm_object **pobject)
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{
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return oclass->base.ctor(oclass, data, size, pobject);
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}
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static int
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nvkm_client_child_get(struct nvkm_object *object, int index,
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struct nvkm_oclass *oclass)
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{
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const struct nvkm_sclass *sclass;
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switch (index) {
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case 0: sclass = &nvkm_uclient_sclass; break;
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case 1: sclass = &nvkm_udevice_sclass; break;
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default:
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return -EINVAL;
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}
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oclass->ctor = nvkm_client_child_new;
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oclass->base = *sclass;
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return 0;
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}
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static int
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nvkm_client_fini(struct nvkm_object *object, bool suspend)
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{
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struct nvkm_client *client = nvkm_client(object);
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const char *name[2] = { "fini", "suspend" };
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int i;
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nvif_debug(object, "%s notify\n", name[suspend]);
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for (i = 0; i < ARRAY_SIZE(client->notify); i++)
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nvkm_client_notify_put(client, i);
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return 0;
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}
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static void *
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nvkm_client_dtor(struct nvkm_object *object)
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{
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struct nvkm_client *client = nvkm_client(object);
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int i;
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for (i = 0; i < ARRAY_SIZE(client->notify); i++)
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nvkm_client_notify_del(client, i);
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return client;
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}
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static const struct nvkm_object_func
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nvkm_client = {
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.dtor = nvkm_client_dtor,
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.fini = nvkm_client_fini,
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.mthd = nvkm_client_mthd,
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.sclass = nvkm_client_child_get,
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};
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int
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nvkm_client_new(const char *name, u64 device, const char *cfg,
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const char *dbg,
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int (*ntfy)(const void *, u32, const void *, u32),
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struct nvkm_client **pclient)
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{
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struct nvkm_oclass oclass = { .base = nvkm_uclient_sclass };
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struct nvkm_client *client;
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if (!(client = *pclient = kzalloc(sizeof(*client), GFP_KERNEL)))
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return -ENOMEM;
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oclass.client = client;
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nvkm_object_ctor(&nvkm_client, &oclass, &client->object);
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snprintf(client->name, sizeof(client->name), "%s", name);
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client->device = device;
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client->debug = nvkm_dbgopt(dbg, "CLIENT");
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client->objroot = RB_ROOT;
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client->ntfy = ntfy;
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INIT_LIST_HEAD(&client->umem);
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spin_lock_init(&client->lock);
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return 0;
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}
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