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// SPDX-License-Identifier: GPL-2.0
/*
* (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
* Author: James.Qian.Wang <james.qian.wang@arm.com>
*
*/
#include <drm/drm_print.h>
#include "komeda_dev.h"
#include "komeda_pipeline.h"
/** komeda_pipeline_add - Add a pipeline to &komeda_dev */
struct komeda_pipeline *
komeda_pipeline_add(struct komeda_dev *mdev, size_t size,
const struct komeda_pipeline_funcs *funcs)
{
struct komeda_pipeline *pipe;
if (mdev->n_pipelines + 1 > KOMEDA_MAX_PIPELINES) {
DRM_ERROR("Exceed max support %d pipelines.\n",
KOMEDA_MAX_PIPELINES);
return ERR_PTR(-ENOSPC);
}
if (size < sizeof(*pipe)) {
DRM_ERROR("Request pipeline size too small.\n");
return ERR_PTR(-EINVAL);
}
pipe = devm_kzalloc(mdev->dev, size, GFP_KERNEL);
if (!pipe)
return ERR_PTR(-ENOMEM);
pipe->mdev = mdev;
pipe->id = mdev->n_pipelines;
pipe->funcs = funcs;
mdev->pipelines[mdev->n_pipelines] = pipe;
mdev->n_pipelines++;
return pipe;
}
void komeda_pipeline_destroy(struct komeda_dev *mdev,
struct komeda_pipeline *pipe)
{
struct komeda_component *c;
int i;
dp_for_each_set_bit(i, pipe->avail_comps) {
c = komeda_pipeline_get_component(pipe, i);
komeda_component_destroy(mdev, c);
}
clk_put(pipe->pxlclk);
clk_put(pipe->aclk);
of_node_put(pipe->of_output_dev);
of_node_put(pipe->of_output_port);
of_node_put(pipe->of_node);
devm_kfree(mdev->dev, pipe);
}
static struct komeda_component **
komeda_pipeline_get_component_pos(struct komeda_pipeline *pipe, int id)
{
struct komeda_dev *mdev = pipe->mdev;
struct komeda_pipeline *temp = NULL;
struct komeda_component **pos = NULL;
switch (id) {
case KOMEDA_COMPONENT_LAYER0:
case KOMEDA_COMPONENT_LAYER1:
case KOMEDA_COMPONENT_LAYER2:
case KOMEDA_COMPONENT_LAYER3:
pos = to_cpos(pipe->layers[id - KOMEDA_COMPONENT_LAYER0]);
break;
case KOMEDA_COMPONENT_WB_LAYER:
pos = to_cpos(pipe->wb_layer);
break;
case KOMEDA_COMPONENT_COMPIZ0:
case KOMEDA_COMPONENT_COMPIZ1:
temp = mdev->pipelines[id - KOMEDA_COMPONENT_COMPIZ0];
if (!temp) {
DRM_ERROR("compiz-%d doesn't exist.\n", id);
return NULL;
}
pos = to_cpos(temp->compiz);
break;
case KOMEDA_COMPONENT_SCALER0:
case KOMEDA_COMPONENT_SCALER1:
pos = to_cpos(pipe->scalers[id - KOMEDA_COMPONENT_SCALER0]);
break;
case KOMEDA_COMPONENT_IPS0:
case KOMEDA_COMPONENT_IPS1:
temp = mdev->pipelines[id - KOMEDA_COMPONENT_IPS0];
if (!temp) {
DRM_ERROR("ips-%d doesn't exist.\n", id);
return NULL;
}
pos = to_cpos(temp->improc);
break;
case KOMEDA_COMPONENT_TIMING_CTRLR:
pos = to_cpos(pipe->ctrlr);
break;
default:
pos = NULL;
DRM_ERROR("Unknown pipeline resource ID: %d.\n", id);
break;
}
return pos;
}
struct komeda_component *
komeda_pipeline_get_component(struct komeda_pipeline *pipe, int id)
{
struct komeda_component **pos = NULL;
struct komeda_component *c = NULL;
pos = komeda_pipeline_get_component_pos(pipe, id);
if (pos)
c = *pos;
return c;
}
/** komeda_component_add - Add a component to &komeda_pipeline */
struct komeda_component *
komeda_component_add(struct komeda_pipeline *pipe,
size_t comp_sz, u32 id, u32 hw_id,
const struct komeda_component_funcs *funcs,
u8 max_active_inputs, u32 supported_inputs,
u8 max_active_outputs, u32 __iomem *reg,
const char *name_fmt, ...)
{
struct komeda_component **pos;
struct komeda_component *c;
int idx, *num = NULL;
if (max_active_inputs > KOMEDA_COMPONENT_N_INPUTS) {
WARN(1, "please large KOMEDA_COMPONENT_N_INPUTS to %d.\n",
max_active_inputs);
return ERR_PTR(-ENOSPC);
}
pos = komeda_pipeline_get_component_pos(pipe, id);
if (!pos || (*pos))
return ERR_PTR(-EINVAL);
if (has_bit(id, KOMEDA_PIPELINE_LAYERS)) {
idx = id - KOMEDA_COMPONENT_LAYER0;
num = &pipe->n_layers;
if (idx != pipe->n_layers) {
DRM_ERROR("please add Layer by id sequence.\n");
return ERR_PTR(-EINVAL);
}
} else if (has_bit(id, KOMEDA_PIPELINE_SCALERS)) {
idx = id - KOMEDA_COMPONENT_SCALER0;
num = &pipe->n_scalers;
if (idx != pipe->n_scalers) {
DRM_ERROR("please add Scaler by id sequence.\n");
return ERR_PTR(-EINVAL);
}
}
c = devm_kzalloc(pipe->mdev->dev, comp_sz, GFP_KERNEL);
if (!c)
return ERR_PTR(-ENOMEM);
c->id = id;
c->hw_id = hw_id;
c->reg = reg;
c->pipeline = pipe;
c->max_active_inputs = max_active_inputs;
c->max_active_outputs = max_active_outputs;
c->supported_inputs = supported_inputs;
c->funcs = funcs;
if (name_fmt) {
va_list args;
va_start(args, name_fmt);
vsnprintf(c->name, sizeof(c->name), name_fmt, args);
va_end(args);
}
if (num)
*num = *num + 1;
pipe->avail_comps |= BIT(c->id);
*pos = c;
return c;
}
void komeda_component_destroy(struct komeda_dev *mdev,
struct komeda_component *c)
{
devm_kfree(mdev->dev, c);
}
static void komeda_component_dump(struct komeda_component *c)
{
if (!c)
return;
DRM_DEBUG(" %s: ID %d-0x%08lx.\n",
c->name, c->id, BIT(c->id));
DRM_DEBUG(" max_active_inputs:%d, supported_inputs: 0x%08x.\n",
c->max_active_inputs, c->supported_inputs);
DRM_DEBUG(" max_active_outputs:%d, supported_outputs: 0x%08x.\n",
c->max_active_outputs, c->supported_outputs);
}
static void komeda_pipeline_dump(struct komeda_pipeline *pipe)
{
struct komeda_component *c;
int id;
DRM_INFO("Pipeline-%d: n_layers: %d, n_scalers: %d, output: %s\n",
pipe->id, pipe->n_layers, pipe->n_scalers,
pipe->of_output_dev ? pipe->of_output_dev->full_name : "none");
dp_for_each_set_bit(id, pipe->avail_comps) {
c = komeda_pipeline_get_component(pipe, id);
komeda_component_dump(c);
}
}
static void komeda_component_verify_inputs(struct komeda_component *c)
{
struct komeda_pipeline *pipe = c->pipeline;
struct komeda_component *input;
int id;
dp_for_each_set_bit(id, c->supported_inputs) {
input = komeda_pipeline_get_component(pipe, id);
if (!input) {
c->supported_inputs &= ~(BIT(id));
DRM_WARN("Can not find input(ID-%d) for component: %s.\n",
id, c->name);
continue;
}
input->supported_outputs |= BIT(c->id);
}
}
static void komeda_pipeline_assemble(struct komeda_pipeline *pipe)
{
struct komeda_component *c;
int id;
dp_for_each_set_bit(id, pipe->avail_comps) {
c = komeda_pipeline_get_component(pipe, id);
komeda_component_verify_inputs(c);
}
}
int komeda_assemble_pipelines(struct komeda_dev *mdev)
{
struct komeda_pipeline *pipe;
int i;
for (i = 0; i < mdev->n_pipelines; i++) {
pipe = mdev->pipelines[i];
komeda_pipeline_assemble(pipe);
komeda_pipeline_dump(pipe);
}
return 0;
}
void komeda_pipeline_dump_register(struct komeda_pipeline *pipe,
struct seq_file *sf)
{
struct komeda_component *c;
u32 id;
seq_printf(sf, "\n======== Pipeline-%d ==========\n", pipe->id);
if (pipe->funcs && pipe->funcs->dump_register)
pipe->funcs->dump_register(pipe, sf);
dp_for_each_set_bit(id, pipe->avail_comps) {
c = komeda_pipeline_get_component(pipe, id);
seq_printf(sf, "\n------%s------\n", c->name);
if (c->funcs->dump_register)
c->funcs->dump_register(c, sf);
}
}
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