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Diffstat (limited to 'nvkm/engine/disp/outpdp.c')
-rw-r--r--nvkm/engine/disp/outpdp.c302
1 files changed, 0 insertions, 302 deletions
diff --git a/nvkm/engine/disp/outpdp.c b/nvkm/engine/disp/outpdp.c
deleted file mode 100644
index 667a9070e..000000000
--- a/nvkm/engine/disp/outpdp.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * Copyright 2014 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 <core/os.h>
-#include <nvif/event.h>
-
-#include <subdev/i2c.h>
-
-#include "outpdp.h"
-#include "conn.h"
-#include "dport.h"
-
-int
-nvkm_output_dp_train(struct nvkm_output *base, u32 datarate, bool wait)
-{
- struct nvkm_output_dp *outp = (void *)base;
- bool retrain = true;
- u8 link[2], stat[3];
- u32 linkrate;
- int ret, i;
-
- /* check that the link is trained at a high enough rate */
- ret = nv_rdaux(outp->base.edid, DPCD_LC00_LINK_BW_SET, link, 2);
- if (ret) {
- DBG("failed to read link config, assuming no sink\n");
- goto done;
- }
-
- linkrate = link[0] * 27000 * (link[1] & DPCD_LC01_LANE_COUNT_SET);
- linkrate = (linkrate * 8) / 10; /* 8B/10B coding overhead */
- datarate = (datarate + 9) / 10; /* -> decakilobits */
- if (linkrate < datarate) {
- DBG("link not trained at sufficient rate\n");
- goto done;
- }
-
- /* check that link is still trained */
- ret = nv_rdaux(outp->base.edid, DPCD_LS02, stat, 3);
- if (ret) {
- DBG("failed to read link status, assuming no sink\n");
- goto done;
- }
-
- if (stat[2] & DPCD_LS04_INTERLANE_ALIGN_DONE) {
- for (i = 0; i < (link[1] & DPCD_LC01_LANE_COUNT_SET); i++) {
- u8 lane = (stat[i >> 1] >> ((i & 1) * 4)) & 0x0f;
- if (!(lane & DPCD_LS02_LANE0_CR_DONE) ||
- !(lane & DPCD_LS02_LANE0_CHANNEL_EQ_DONE) ||
- !(lane & DPCD_LS02_LANE0_SYMBOL_LOCKED)) {
- DBG("lane %d not equalised\n", lane);
- goto done;
- }
- }
- retrain = false;
- } else {
- DBG("no inter-lane alignment\n");
- }
-
-done:
- if (retrain || !atomic_read(&outp->lt.done)) {
- /* no sink, but still need to configure source */
- if (outp->dpcd[DPCD_RC00_DPCD_REV] == 0x00) {
- outp->dpcd[DPCD_RC01_MAX_LINK_RATE] =
- outp->base.info.dpconf.link_bw;
- outp->dpcd[DPCD_RC02] =
- outp->base.info.dpconf.link_nr;
- }
- atomic_set(&outp->lt.done, 0);
- schedule_work(&outp->lt.work);
- } else {
- nvkm_notify_get(&outp->irq);
- }
-
- if (wait) {
- if (!wait_event_timeout(outp->lt.wait,
- atomic_read(&outp->lt.done),
- msecs_to_jiffies(2000)))
- ret = -ETIMEDOUT;
- }
-
- return ret;
-}
-
-static void
-nvkm_output_dp_enable(struct nvkm_output_dp *outp, bool present)
-{
- struct nouveau_i2c_port *port = outp->base.edid;
- if (present) {
- if (!outp->present) {
- nouveau_i2c(port)->acquire_pad(port, 0);
- DBG("aux power -> always\n");
- outp->present = true;
- }
- nvkm_output_dp_train(&outp->base, 0, true);
- } else {
- if (outp->present) {
- nouveau_i2c(port)->release_pad(port);
- DBG("aux power -> demand\n");
- outp->present = false;
- }
- atomic_set(&outp->lt.done, 0);
- }
-}
-
-static void
-nvkm_output_dp_detect(struct nvkm_output_dp *outp)
-{
- struct nouveau_i2c_port *port = outp->base.edid;
- int ret = nouveau_i2c(port)->acquire_pad(port, 0);
- if (ret == 0) {
- ret = nv_rdaux(outp->base.edid, DPCD_RC00_DPCD_REV,
- outp->dpcd, sizeof(outp->dpcd));
- nvkm_output_dp_enable(outp, ret == 0);
- nouveau_i2c(port)->release_pad(port);
- }
-}
-
-static int
-nvkm_output_dp_hpd(struct nvkm_notify *notify)
-{
- struct nvkm_connector *conn = container_of(notify, typeof(*conn), hpd);
- struct nvkm_output_dp *outp;
- struct nouveau_disp *disp = nouveau_disp(conn);
- const struct nvkm_i2c_ntfy_rep *line = notify->data;
- struct nvif_notify_conn_rep_v0 rep = {};
-
- list_for_each_entry(outp, &disp->outp, base.head) {
- if (outp->base.conn == conn &&
- outp->info.type == DCB_OUTPUT_DP) {
- DBG("HPD: %d\n", line->mask);
- nvkm_output_dp_detect(outp);
-
- if (line->mask & NVKM_I2C_UNPLUG)
- rep.mask |= NVIF_NOTIFY_CONN_V0_UNPLUG;
- if (line->mask & NVKM_I2C_PLUG)
- rep.mask |= NVIF_NOTIFY_CONN_V0_PLUG;
-
- nvkm_event_send(&disp->hpd, rep.mask, conn->index,
- &rep, sizeof(rep));
- return NVKM_NOTIFY_KEEP;
- }
- }
-
- WARN_ON(1);
- return NVKM_NOTIFY_DROP;
-}
-
-static int
-nvkm_output_dp_irq(struct nvkm_notify *notify)
-{
- struct nvkm_output_dp *outp = container_of(notify, typeof(*outp), irq);
- struct nouveau_disp *disp = nouveau_disp(outp);
- const struct nvkm_i2c_ntfy_rep *line = notify->data;
- struct nvif_notify_conn_rep_v0 rep = {
- .mask = NVIF_NOTIFY_CONN_V0_IRQ,
- };
- int index = outp->base.info.connector;
-
- DBG("IRQ: %d\n", line->mask);
- nvkm_output_dp_train(&outp->base, 0, true);
-
- nvkm_event_send(&disp->hpd, rep.mask, index, &rep, sizeof(rep));
- return NVKM_NOTIFY_DROP;
-}
-
-int
-_nvkm_output_dp_fini(struct nouveau_object *object, bool suspend)
-{
- struct nvkm_output_dp *outp = (void *)object;
- nvkm_notify_put(&outp->irq);
- nvkm_output_dp_enable(outp, false);
- return nvkm_output_fini(&outp->base, suspend);
-}
-
-int
-_nvkm_output_dp_init(struct nouveau_object *object)
-{
- struct nvkm_output_dp *outp = (void *)object;
- nvkm_output_dp_detect(outp);
- return nvkm_output_init(&outp->base);
-}
-
-void
-_nvkm_output_dp_dtor(struct nouveau_object *object)
-{
- struct nvkm_output_dp *outp = (void *)object;
- nvkm_notify_fini(&outp->irq);
- nvkm_output_destroy(&outp->base);
-}
-
-int
-nvkm_output_dp_create_(struct nouveau_object *parent,
- struct nouveau_object *engine,
- struct nouveau_oclass *oclass,
- struct dcb_output *info, int index,
- int length, void **pobject)
-{
- struct nouveau_bios *bios = nouveau_bios(parent);
- struct nouveau_i2c *i2c = nouveau_i2c(parent);
- struct nvkm_output_dp *outp;
- u8 hdr, cnt, len;
- u32 data;
- int ret;
-
- ret = nvkm_output_create_(parent, engine, oclass, info, index,
- length, pobject);
- outp = *pobject;
- if (ret)
- return ret;
-
- nvkm_notify_fini(&outp->base.conn->hpd);
-
- /* access to the aux channel is not optional... */
- if (!outp->base.edid) {
- ERR("aux channel not found\n");
- return -ENODEV;
- }
-
- /* nor is the bios data for this output... */
- data = nvbios_dpout_match(bios, outp->base.info.hasht,
- outp->base.info.hashm, &outp->version,
- &hdr, &cnt, &len, &outp->info);
- if (!data) {
- ERR("no bios dp data\n");
- return -ENODEV;
- }
-
- DBG("bios dp %02x %02x %02x %02x\n", outp->version, hdr, cnt, len);
-
- /* link training */
- INIT_WORK(&outp->lt.work, nouveau_dp_train);
- init_waitqueue_head(&outp->lt.wait);
- atomic_set(&outp->lt.done, 0);
-
- /* link maintenance */
- ret = nvkm_notify_init(NULL, &i2c->event, nvkm_output_dp_irq, true,
- &(struct nvkm_i2c_ntfy_req) {
- .mask = NVKM_I2C_IRQ,
- .port = outp->base.edid->index,
- },
- sizeof(struct nvkm_i2c_ntfy_req),
- sizeof(struct nvkm_i2c_ntfy_rep),
- &outp->irq);
- if (ret) {
- ERR("error monitoring aux irq event: %d\n", ret);
- return ret;
- }
-
- /* hotplug detect, replaces gpio-based mechanism with aux events */
- ret = nvkm_notify_init(NULL, &i2c->event, nvkm_output_dp_hpd, true,
- &(struct nvkm_i2c_ntfy_req) {
- .mask = NVKM_I2C_PLUG | NVKM_I2C_UNPLUG,
- .port = outp->base.edid->index,
- },
- sizeof(struct nvkm_i2c_ntfy_req),
- sizeof(struct nvkm_i2c_ntfy_rep),
- &outp->base.conn->hpd);
- if (ret) {
- ERR("error monitoring aux hpd events: %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-int
-_nvkm_output_dp_ctor(struct nouveau_object *parent,
- struct nouveau_object *engine,
- struct nouveau_oclass *oclass, void *info, u32 index,
- struct nouveau_object **pobject)
-{
- struct nvkm_output_dp *outp;
- int ret;
-
- ret = nvkm_output_dp_create(parent, engine, oclass, info, index, &outp);
- *pobject = nv_object(outp);
- if (ret)
- return ret;
-
- return 0;
-}
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