/*
* 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_uconn(p) container_of((p), struct nvkm_conn, object)
#include "conn.h"
#include "outp.h"
#include <core/client.h>
#include <core/event.h>
#include <subdev/gpio.h>
#include <subdev/i2c.h>
#include <nvif/if0011.h>
static int
nvkm_uconn_uevent_gsp(struct nvkm_object *object, u64 token, u32 bits)
{
union nvif_conn_event_args args;
args.v0.version = 0;
args.v0.types = 0;
if (bits & NVKM_DPYID_PLUG)
args.v0.types |= NVIF_CONN_EVENT_V0_PLUG;
if (bits & NVKM_DPYID_UNPLUG)
args.v0.types |= NVIF_CONN_EVENT_V0_UNPLUG;
if (bits & NVKM_DPYID_IRQ)
args.v0.types |= NVIF_CONN_EVENT_V0_IRQ;
return object->client->event(token, &args, sizeof(args.v0));
}
static int
nvkm_uconn_uevent_aux(struct nvkm_object *object, u64 token, u32 bits)
{
union nvif_conn_event_args args;
args.v0.version = 0;
args.v0.types = 0;
if (bits & NVKM_I2C_PLUG)
args.v0.types |= NVIF_CONN_EVENT_V0_PLUG;
if (bits & NVKM_I2C_UNPLUG)
args.v0.types |= NVIF_CONN_EVENT_V0_UNPLUG;
if (bits & NVKM_I2C_IRQ)
args.v0.types |= NVIF_CONN_EVENT_V0_IRQ;
return object->client->event(token, &args, sizeof(args.v0));
}
static int
nvkm_uconn_uevent_gpio(struct nvkm_object *object, u64 token, u32 bits)
{
union nvif_conn_event_args args;
args.v0.version = 0;
args.v0.types = 0;
if (bits & NVKM_GPIO_HI)
args.v0.types |= NVIF_CONN_EVENT_V0_PLUG;
if (bits & NVKM_GPIO_LO)
args.v0.types |= NVIF_CONN_EVENT_V0_UNPLUG;
return object->client->event(token, &args, sizeof(args.v0));
}
static bool
nvkm_connector_is_dp_dms(u8 type)
{
switch (type) {
case DCB_CONNECTOR_DMS59_DP0:
case DCB_CONNECTOR_DMS59_DP1:
return true;
default:
return false;
}
}
static int
nvkm_uconn_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_uevent *uevent)
{
struct nvkm_conn *conn = nvkm_uconn(object);
struct nvkm_disp *disp = conn->disp;
struct nvkm_device *device = disp->engine.subdev.device;
struct nvkm_outp *outp;
union nvif_conn_event_args *args = argv;
u64 bits = 0;
if (!uevent) {
if (!disp->rm.client.gsp && conn->info.hpd == DCB_GPIO_UNUSED)
return -ENOSYS;
return 0;
}
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
list_for_each_entry(outp, &conn->disp->outps, head) {
if (outp->info.connector == conn->index)
break;
}
if (&outp->head == &conn->disp->outps)
return -EINVAL;
if (disp->rm.client.gsp) {
if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_DPYID_PLUG;
if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_DPYID_UNPLUG;
if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ ) bits |= NVKM_DPYID_IRQ;
return nvkm_uevent_add(uevent, &disp->rm.event, outp->index, bits,
nvkm_uconn_uevent_gsp);
}
if (outp->dp.aux && !outp->info.location) {
if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_I2C_PLUG;
if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_I2C_UNPLUG;
if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ ) bits |= NVKM_I2C_IRQ;
return nvkm_uevent_add(uevent, &device->i2c->event, outp->dp.aux->id, bits,
nvkm_uconn_uevent_aux);
}
if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_GPIO_HI;
if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_GPIO_LO;
if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ) {
/* TODO: support DP IRQ on ANX9805 and remove this hack. */
if (!outp->info.location && !nvkm_connector_is_dp_dms(conn->info.type))
return -EINVAL;
}
return nvkm_uevent_add(uevent, &device->gpio->event, conn->info.hpd, bits,
nvkm_uconn_uevent_gpio);
}
static void *
nvkm_uconn_dtor(struct nvkm_object *object)
{
struct nvkm_conn *conn = nvkm_uconn(object);
struct nvkm_disp *disp = conn->disp;
spin_lock(&disp->client.lock);
conn->object.func = NULL;
spin_unlock(&disp->client.lock);
return NULL;
}
static const struct nvkm_object_func
nvkm_uconn = {
.dtor = nvkm_uconn_dtor,
.uevent = nvkm_uconn_uevent,
};
int
nvkm_uconn_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_object **pobject)
{
struct nvkm_disp *disp = nvkm_udisp(oclass->parent);
struct nvkm_conn *cont, *conn = NULL;
union nvif_conn_args *args = argv;
int ret;
if (argc != sizeof(args->v0) || args->v0.version != 0)
return -ENOSYS;
list_for_each_entry(cont, &disp->conns, head) {
if (cont->index == args->v0.id) {
conn = cont;
break;
}
}
if (!conn)
return -EINVAL;
ret = -EBUSY;
spin_lock(&disp->client.lock);
if (!conn->object.func) {
switch (conn->info.type) {
case DCB_CONNECTOR_VGA : args->v0.type = NVIF_CONN_V0_VGA; break;
case DCB_CONNECTOR_TV_0 :
case DCB_CONNECTOR_TV_1 :
case DCB_CONNECTOR_TV_3 : args->v0.type = NVIF_CONN_V0_TV; break;
case DCB_CONNECTOR_DMS59_0 :
case DCB_CONNECTOR_DMS59_1 :
case DCB_CONNECTOR_DVI_I : args->v0.type = NVIF_CONN_V0_DVI_I; break;
case DCB_CONNECTOR_DVI_D : args->v0.type = NVIF_CONN_V0_DVI_D; break;
case DCB_CONNECTOR_LVDS : args->v0.type = NVIF_CONN_V0_LVDS; break;
case DCB_CONNECTOR_LVDS_SPWG: args->v0.type = NVIF_CONN_V0_LVDS_SPWG; break;
case DCB_CONNECTOR_DMS59_DP0:
case DCB_CONNECTOR_DMS59_DP1:
case DCB_CONNECTOR_DP :
case DCB_CONNECTOR_mDP :
case DCB_CONNECTOR_USB_C : args->v0.type = NVIF_CONN_V0_DP; break;
case DCB_CONNECTOR_eDP : args->v0.type = NVIF_CONN_V0_EDP; break;
case DCB_CONNECTOR_HDMI_0 :
case DCB_CONNECTOR_HDMI_1 :
case DCB_CONNECTOR_HDMI_C : args->v0.type = NVIF_CONN_V0_HDMI; break;
default:
WARN_ON(1);
ret = -EINVAL;
break;
}
nvkm_object_ctor(&nvkm_uconn, oclass, &conn->object);
*pobject = &conn->object;
ret = 0;
}
spin_unlock(&disp->client.lock);
return ret;
}
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