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/*
* Copyright 2013 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"
#include "conn.h"
#include "outp.h"
#include <core/notify.h>
#include <subdev/bios.h>
#include <subdev/bios/dcb.h>
#include <nvif/class.h>
#include <nvif/event.h>
#include <nvif/unpack.h>
int
nvkm_disp_vblank_ctor(struct nvkm_object *object, void *data, u32 size,
struct nvkm_notify *notify)
{
struct nvkm_disp *disp =
container_of(notify->event, typeof(*disp), vblank);
union {
struct nvif_notify_head_req_v0 v0;
} *req = data;
int ret;
if (nvif_unpack(req->v0, 0, 0, false)) {
notify->size = sizeof(struct nvif_notify_head_rep_v0);
if (ret = -ENXIO, req->v0.head <= disp->vblank.index_nr) {
notify->types = 1;
notify->index = req->v0.head;
return 0;
}
}
return ret;
}
void
nvkm_disp_vblank(struct nvkm_disp *disp, int head)
{
struct nvif_notify_head_rep_v0 rep = {};
nvkm_event_send(&disp->vblank, 1, head, &rep, sizeof(rep));
}
static int
nvkm_disp_hpd_ctor(struct nvkm_object *object, void *data, u32 size,
struct nvkm_notify *notify)
{
struct nvkm_disp *disp =
container_of(notify->event, typeof(*disp), hpd);
union {
struct nvif_notify_conn_req_v0 v0;
} *req = data;
struct nvkm_output *outp;
int ret;
if (nvif_unpack(req->v0, 0, 0, false)) {
notify->size = sizeof(struct nvif_notify_conn_rep_v0);
list_for_each_entry(outp, &disp->outp, head) {
if (ret = -ENXIO, outp->conn->index == req->v0.conn) {
if (ret = -ENODEV, outp->conn->hpd.event) {
notify->types = req->v0.mask;
notify->index = req->v0.conn;
ret = 0;
}
break;
}
}
}
return ret;
}
static const struct nvkm_event_func
nvkm_disp_hpd_func = {
.ctor = nvkm_disp_hpd_ctor
};
int
nvkm_disp_ntfy(struct nvkm_object *object, u32 type, struct nvkm_event **event)
{
struct nvkm_disp *disp = (void *)object->engine;
switch (type) {
case NV04_DISP_NTFY_VBLANK:
*event = &disp->vblank;
return 0;
case NV04_DISP_NTFY_CONN:
*event = &disp->hpd;
return 0;
default:
break;
}
return -EINVAL;
}
int
_nvkm_disp_fini(struct nvkm_object *object, bool suspend)
{
struct nvkm_disp *disp = (void *)object;
struct nvkm_output *outp;
int ret;
list_for_each_entry(outp, &disp->outp, head) {
ret = nv_ofuncs(outp)->fini(nv_object(outp), suspend);
if (ret && suspend)
goto fail_outp;
}
return nvkm_engine_fini(&disp->base, suspend);
fail_outp:
list_for_each_entry_continue_reverse(outp, &disp->outp, head) {
nv_ofuncs(outp)->init(nv_object(outp));
}
return ret;
}
int
_nvkm_disp_init(struct nvkm_object *object)
{
struct nvkm_disp *disp = (void *)object;
struct nvkm_output *outp;
int ret;
ret = nvkm_engine_init(&disp->base);
if (ret)
return ret;
list_for_each_entry(outp, &disp->outp, head) {
ret = nv_ofuncs(outp)->init(nv_object(outp));
if (ret)
goto fail_outp;
}
return ret;
fail_outp:
list_for_each_entry_continue_reverse(outp, &disp->outp, head) {
nv_ofuncs(outp)->fini(nv_object(outp), false);
}
return ret;
}
void
_nvkm_disp_dtor(struct nvkm_object *object)
{
struct nvkm_disp *disp = (void *)object;
struct nvkm_output *outp, *outt;
nvkm_event_fini(&disp->vblank);
nvkm_event_fini(&disp->hpd);
if (disp->outp.next) {
list_for_each_entry_safe(outp, outt, &disp->outp, head) {
nvkm_object_ref(NULL, (struct nvkm_object **)&outp);
}
}
nvkm_engine_destroy(&disp->base);
}
int
nvkm_disp_create_(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, int heads, const char *intname,
const char *extname, int length, void **pobject)
{
struct nvkm_disp_impl *impl = (void *)oclass;
struct nvkm_bios *bios = nvkm_bios(parent);
struct nvkm_disp *disp;
struct nvkm_oclass **sclass;
struct nvkm_object *object;
struct dcb_output dcbE;
u8 hpd = 0, ver, hdr;
u32 data;
int ret, i;
ret = nvkm_engine_create_(parent, engine, oclass, true, intname,
extname, length, pobject);
disp = *pobject;
if (ret)
return ret;
INIT_LIST_HEAD(&disp->outp);
/* create output objects for each display path in the vbios */
i = -1;
while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
if (dcbE.type == DCB_OUTPUT_UNUSED)
continue;
if (dcbE.type == DCB_OUTPUT_EOL)
break;
data = dcbE.location << 4 | dcbE.type;
oclass = nvkm_output_oclass;
sclass = impl->outp;
while (sclass && sclass[0]) {
if (sclass[0]->handle == data) {
oclass = sclass[0];
break;
}
sclass++;
}
nvkm_object_ctor(*pobject, NULL, oclass, &dcbE, i, &object);
hpd = max(hpd, (u8)(dcbE.connector + 1));
}
ret = nvkm_event_init(&nvkm_disp_hpd_func, 3, hpd, &disp->hpd);
if (ret)
return ret;
ret = nvkm_event_init(impl->vblank, 1, heads, &disp->vblank);
if (ret)
return ret;
return 0;
}
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