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/*
* Copyright 2021 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.
*/
#define nvkm_uoutp(p) container_of((p), struct nvkm_outp, object)
#include "outp.h"
#include "dp.h"
#include "head.h"
#include "ior.h"
#include <nvif/if0012.h>
static int
nvkm_uoutp_mthd_dp_mst_vcpi(struct nvkm_outp *outp, void *argv, u32 argc)
{
struct nvkm_ior *ior = outp->ior;
union nvif_outp_dp_mst_vcpi_args *args = argv;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (!ior->func->dp || !ior->func->dp->vcpi || !nvkm_head_find(outp->disp, args->v0.head))
return -EINVAL;
ior->func->dp->vcpi(ior, args->v0.head, args->v0.start_slot, args->v0.num_slots,
args->v0.pbn, args->v0.aligned_pbn);
return 0;
}
static int
nvkm_uoutp_mthd_dp_retrain(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_dp_retrain_args *args = argv;
if (argc != sizeof(args->vn))
return -ENOSYS;
if (!atomic_read(&outp->dp.lt.done))
return 0;
return outp->func->acquire(outp);
}
static int
nvkm_uoutp_mthd_acquire_dp(struct nvkm_outp *outp, u8 dpcd[DP_RECEIVER_CAP_SIZE],
u8 link_nr, u8 link_bw, bool hda, bool mst)
{
memcpy(outp->dp.dpcd, dpcd, sizeof(outp->dp.dpcd));
outp->dp.lt.nr = link_nr;
outp->dp.lt.bw = link_bw;
outp->dp.lt.mst = mst;
return 0;
}
static int
nvkm_uoutp_mthd_dp_aux_pwr(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_dp_aux_pwr_args *args = argv;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
outp->dp.enabled = !!args->v0.state;
nvkm_dp_enable(outp, outp->dp.enabled);
return 0;
}
static int
nvkm_uoutp_mthd_hda_eld(struct nvkm_outp *outp, void *argv, u32 argc)
{
struct nvkm_ior *ior = outp->ior;
union nvif_outp_hda_eld_args *args = argv;
if (argc < sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
argc -= sizeof(args->v0);
if (!ior->hda || !nvkm_head_find(outp->disp, args->v0.head))
return -EINVAL;
if (argc > 0x60)
return -E2BIG;
if (argc && args->v0.data[0]) {
if (outp->info.type == DCB_OUTPUT_DP)
ior->func->dp->audio(ior, args->v0.head, true);
else
if (ior->func->hdmi->audio)
ior->func->hdmi->audio(ior, args->v0.head, true);
ior->func->hda->hpd(ior, args->v0.head, true);
ior->func->hda->eld(ior, args->v0.head, args->v0.data, argc);
} else {
ior->func->hda->hpd(ior, args->v0.head, false);
if (outp->info.type == DCB_OUTPUT_DP)
ior->func->dp->audio(ior, args->v0.head, false);
else
if (ior->func->hdmi->audio)
ior->func->hdmi->audio(ior, args->v0.head, false);
}
return 0;
}
static int
nvkm_uoutp_mthd_infoframe(struct nvkm_outp *outp, void *argv, u32 argc)
{
struct nvkm_ior *ior = outp->ior;
union nvif_outp_infoframe_args *args = argv;
ssize_t size = argc - sizeof(*args);
if (argc < sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (!nvkm_head_find(outp->disp, args->v0.head))
return -EINVAL;
switch (ior->func->hdmi ? args->v0.type : 0xff) {
case NVIF_OUTP_INFOFRAME_V0_AVI:
ior->func->hdmi->infoframe_avi(ior, args->v0.head, &args->v0.data, size);
return 0;
case NVIF_OUTP_INFOFRAME_V0_VSI:
ior->func->hdmi->infoframe_vsi(ior, args->v0.head, &args->v0.data, size);
return 0;
default:
break;
}
return -EINVAL;
}
static int
nvkm_uoutp_mthd_hdmi(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_hdmi_args *args = argv;
struct nvkm_ior *ior = outp->ior;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (!(outp->asy.head = nvkm_head_find(outp->disp, args->v0.head)))
return -EINVAL;
if (!ior->func->hdmi ||
args->v0.max_ac_packet > 0x1f ||
args->v0.rekey > 0x7f ||
(args->v0.scdc && !ior->func->hdmi->scdc))
return -EINVAL;
if (!args->v0.enable) {
ior->func->hdmi->infoframe_avi(ior, args->v0.head, NULL, 0);
ior->func->hdmi->infoframe_vsi(ior, args->v0.head, NULL, 0);
ior->func->hdmi->ctrl(ior, args->v0.head, false, 0, 0);
return 0;
}
ior->func->hdmi->ctrl(ior, args->v0.head, args->v0.enable,
args->v0.max_ac_packet, args->v0.rekey);
if (ior->func->hdmi->scdc)
ior->func->hdmi->scdc(ior, args->v0.khz, args->v0.scdc, args->v0.scdc_scrambling,
args->v0.scdc_low_rates);
return 0;
}
static int
nvkm_uoutp_mthd_lvds(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_lvds_args *args = argv;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (outp->info.type != DCB_OUTPUT_LVDS)
return -EINVAL;
outp->lvds.dual = !!args->v0.dual;
outp->lvds.bpc8 = !!args->v0.bpc8;
return 0;
}
static int
nvkm_uoutp_mthd_bl_set(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_bl_get_args *args = argv;
int ret;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (outp->func->bl.set)
ret = outp->func->bl.set(outp, args->v0.level);
else
ret = -EINVAL;
return ret;
}
static int
nvkm_uoutp_mthd_bl_get(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_bl_get_args *args = argv;
int ret;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (outp->func->bl.get) {
ret = outp->func->bl.get(outp);
if (ret >= 0) {
args->v0.level = ret;
ret = 0;
}
} else {
ret = -EINVAL;
}
return ret;
}
static int
nvkm_uoutp_mthd_release(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_release_args *args = argv;
if (argc != sizeof(args->vn))
return -ENOSYS;
if (!outp->ior)
return -EINVAL;
nvkm_outp_release(outp);
return 0;
}
static int
nvkm_uoutp_mthd_acquire(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_acquire_args *args = argv;
int ret;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (outp->ior && args->v0.type <= NVIF_OUTP_ACQUIRE_V0_PIOR)
return -EBUSY;
switch (args->v0.type) {
case NVIF_OUTP_ACQUIRE_V0_DAC:
case NVIF_OUTP_ACQUIRE_V0_PIOR:
ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_USER, false);
break;
case NVIF_OUTP_ACQUIRE_V0_SOR:
ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_USER, args->v0.sor.hda);
break;
case NVIF_OUTP_ACQUIRE_V0_DP:
ret = nvkm_uoutp_mthd_acquire_dp(outp, args->v0.dp.dpcd,
args->v0.dp.link_nr,
args->v0.dp.link_bw,
args->v0.dp.hda != 0,
args->v0.dp.mst != 0);
break;
default:
ret = -EINVAL;
break;
}
if (ret)
return ret;
nvkm_outp_route(outp->disp);
args->v0.or = outp->ior->id;
args->v0.link = outp->ior->asy.link;
return 0;
}
static int
nvkm_uoutp_mthd_inherit(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_inherit_args *args = argv;
struct nvkm_ior *ior;
int ret = 0;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
/* Ensure an ior is hooked up to this outp already */
ior = outp->func->inherit(outp);
if (!ior)
return -ENODEV;
/* With iors, there will be a separate output path for each type of connector - and all of
* them will appear to be hooked up. Figure out which one is actually the one we're using
* based on the protocol we were given over nvif
*/
switch (args->v0.proto) {
case NVIF_OUTP_INHERIT_V0_TMDS:
if (ior->arm.proto != TMDS)
return -ENODEV;
break;
case NVIF_OUTP_INHERIT_V0_DP:
if (ior->arm.proto != DP)
return -ENODEV;
break;
case NVIF_OUTP_INHERIT_V0_LVDS:
if (ior->arm.proto != LVDS)
return -ENODEV;
break;
case NVIF_OUTP_INHERIT_V0_TV:
if (ior->arm.proto != TV)
return -ENODEV;
break;
case NVIF_OUTP_INHERIT_V0_RGB_CRT:
if (ior->arm.proto != CRT)
return -ENODEV;
break;
default:
ret = -EINVAL;
break;
}
/* Make sure that userspace hasn't already acquired this */
if (outp->acquired) {
OUTP_ERR(outp, "cannot inherit an already acquired (%02x) outp", outp->acquired);
return -EBUSY;
}
/* Mark the outp acquired by userspace now that we've confirmed it's already active */
OUTP_TRACE(outp, "inherit %02x |= %02x %p", outp->acquired, NVKM_OUTP_USER, ior);
nvkm_outp_acquire_ior(outp, NVKM_OUTP_USER, ior);
args->v0.or = ior->id;
args->v0.link = ior->arm.link;
args->v0.head = ffs(ior->arm.head) - 1;
args->v0.proto = ior->arm.proto_evo;
return ret;
}
static int
nvkm_uoutp_mthd_load_detect(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_load_detect_args *args = argv;
int ret;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
ret = nvkm_outp_acquire_or(outp, NVKM_OUTP_PRIV, false);
if (ret == 0) {
if (outp->ior->func->sense) {
ret = outp->ior->func->sense(outp->ior, args->v0.data);
args->v0.load = ret < 0 ? 0 : ret;
} else {
ret = -EINVAL;
}
nvkm_outp_release_or(outp, NVKM_OUTP_PRIV);
}
return ret;
}
static int
nvkm_uoutp_mthd_edid_get(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_edid_get_args *args = argv;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (!outp->func->edid_get)
return -EINVAL;
args->v0.size = ARRAY_SIZE(args->v0.data);
return outp->func->edid_get(outp, args->v0.data, &args->v0.size);
}
static int
nvkm_uoutp_mthd_detect(struct nvkm_outp *outp, void *argv, u32 argc)
{
union nvif_outp_detect_args *args = argv;
int ret;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
if (!outp->func->detect)
return -EINVAL;
ret = outp->func->detect(outp);
switch (ret) {
case 0: args->v0.status = NVIF_OUTP_DETECT_V0_NOT_PRESENT; break;
case 1: args->v0.status = NVIF_OUTP_DETECT_V0_PRESENT; break;
default:
args->v0.status = NVIF_OUTP_DETECT_V0_UNKNOWN;
break;
}
return 0;
}
static int
nvkm_uoutp_mthd_acquired(struct nvkm_outp *outp, u32 mthd, void *argv, u32 argc)
{
switch (mthd) {
case NVIF_OUTP_V0_RELEASE : return nvkm_uoutp_mthd_release (outp, argv, argc);
case NVIF_OUTP_V0_LVDS : return nvkm_uoutp_mthd_lvds (outp, argv, argc);
case NVIF_OUTP_V0_HDMI : return nvkm_uoutp_mthd_hdmi (outp, argv, argc);
case NVIF_OUTP_V0_INFOFRAME : return nvkm_uoutp_mthd_infoframe (outp, argv, argc);
case NVIF_OUTP_V0_HDA_ELD : return nvkm_uoutp_mthd_hda_eld (outp, argv, argc);
case NVIF_OUTP_V0_DP_RETRAIN : return nvkm_uoutp_mthd_dp_retrain (outp, argv, argc);
case NVIF_OUTP_V0_DP_MST_VCPI : return nvkm_uoutp_mthd_dp_mst_vcpi (outp, argv, argc);
default:
break;
}
return -EINVAL;
}
static int
nvkm_uoutp_mthd_noacquire(struct nvkm_outp *outp, u32 mthd, void *argv, u32 argc)
{
switch (mthd) {
case NVIF_OUTP_V0_DETECT : return nvkm_uoutp_mthd_detect (outp, argv, argc);
case NVIF_OUTP_V0_EDID_GET : return nvkm_uoutp_mthd_edid_get (outp, argv, argc);
case NVIF_OUTP_V0_INHERIT : return nvkm_uoutp_mthd_inherit (outp, argv, argc);
case NVIF_OUTP_V0_ACQUIRE : return nvkm_uoutp_mthd_acquire (outp, argv, argc);
case NVIF_OUTP_V0_LOAD_DETECT: return nvkm_uoutp_mthd_load_detect(outp, argv, argc);
case NVIF_OUTP_V0_BL_GET : return nvkm_uoutp_mthd_bl_get (outp, argv, argc);
case NVIF_OUTP_V0_BL_SET : return nvkm_uoutp_mthd_bl_set (outp, argv, argc);
case NVIF_OUTP_V0_DP_AUX_PWR : return nvkm_uoutp_mthd_dp_aux_pwr (outp, argv, argc);
default:
break;
}
return 1;
}
static int
nvkm_uoutp_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc)
{
struct nvkm_outp *outp = nvkm_uoutp(object);
struct nvkm_disp *disp = outp->disp;
int ret;
mutex_lock(&disp->super.mutex);
ret = nvkm_uoutp_mthd_noacquire(outp, mthd, argv, argc);
if (ret <= 0)
goto done;
if (outp->ior)
ret = nvkm_uoutp_mthd_acquired(outp, mthd, argv, argc);
else
ret = -EIO;
done:
mutex_unlock(&disp->super.mutex);
return ret;
}
static void *
nvkm_uoutp_dtor(struct nvkm_object *object)
{
struct nvkm_outp *outp = nvkm_uoutp(object);
struct nvkm_disp *disp = outp->disp;
spin_lock(&disp->client.lock);
outp->object.func = NULL;
spin_unlock(&disp->client.lock);
return NULL;
}
static const struct nvkm_object_func
nvkm_uoutp = {
.dtor = nvkm_uoutp_dtor,
.mthd = nvkm_uoutp_mthd,
};
int
nvkm_uoutp_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_object **pobject)
{
struct nvkm_disp *disp = nvkm_udisp(oclass->parent);
struct nvkm_outp *outt, *outp = NULL;
union nvif_outp_args *args = argv;
int ret;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
list_for_each_entry(outt, &disp->outps, head) {
if (outt->index == args->v0.id) {
outp = outt;
break;
}
}
if (!outp)
return -EINVAL;
ret = -EBUSY;
spin_lock(&disp->client.lock);
if (!outp->object.func) {
nvkm_object_ctor(&nvkm_uoutp, oclass, &outp->object);
*pobject = &outp->object;
ret = 0;
}
spin_unlock(&disp->client.lock);
return ret;
}
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