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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 "outp.h"
#include "conn.h"
static int
nouveau_disp_hpd_check(struct nouveau_event *event, u32 types, int index)
{
struct nouveau_disp *disp = event->priv;
struct nvkm_output *outp;
list_for_each_entry(outp, &disp->outp, head) {
if (outp->conn->index == index) {
if (outp->conn->hpd.event)
return 0;
break;
}
}
return -ENOSYS;
}
int
_nouveau_disp_fini(struct nouveau_object *object, bool suspend)
{
struct nouveau_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 nouveau_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
_nouveau_disp_init(struct nouveau_object *object)
{
struct nouveau_disp *disp = (void *)object;
struct nvkm_output *outp;
int ret;
ret = nouveau_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
_nouveau_disp_dtor(struct nouveau_object *object)
{
struct nouveau_disp *disp = (void *)object;
struct nvkm_output *outp, *outt;
nouveau_event_destroy(&disp->vblank);
if (disp->outp.next) {
list_for_each_entry_safe(outp, outt, &disp->outp, head) {
nouveau_object_ref(NULL, (struct nouveau_object **)&outp);
}
}
nouveau_engine_destroy(&disp->base);
}
int
nouveau_disp_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass, int heads,
const char *intname, const char *extname,
int length, void **pobject)
{
struct nouveau_disp_impl *impl = (void *)oclass;
struct nouveau_bios *bios = nouveau_bios(parent);
struct nouveau_disp *disp;
struct nouveau_oclass **sclass;
struct nouveau_object *object;
struct dcb_output dcbE;
u8 hpd = 0, ver, hdr;
u32 data;
int ret, i;
ret = nouveau_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++;
}
nouveau_object_ctor(*pobject, *pobject, oclass,
&dcbE, i, &object);
hpd = max(hpd, (u8)(dcbE.connector + 1));
}
ret = nouveau_event_create(3, hpd, &disp->hpd);
if (ret)
return ret;
disp->hpd->priv = disp;
disp->hpd->check = nouveau_disp_hpd_check;
ret = nouveau_event_create(1, heads, &disp->vblank);
if (ret)
return ret;
return 0;
}
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