#include <linux/of.h>
#include <linux/seq_file.h>
#include <drm/drm_print.h>
#include "komeda_dev.h"
#include "komeda_kms.h"
#include "komeda_pipeline.h"
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;
unsigned long avail_comps = pipe->avail_comps;
for_each_set_bit(i, &avail_comps, 32) {
c = komeda_pipeline_get_component(pipe, i);
komeda_component_destroy(mdev, c);
}
clk_put(pipe->pxlclk);
of_node_put(pipe->of_output_links[0]);
of_node_put(pipe->of_output_links[1]);
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_SPLITTER:
pos = to_cpos(pipe->splitter);
break;
case KOMEDA_COMPONENT_MERGER:
pos = to_cpos(pipe->merger);
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;
}
struct komeda_component *
komeda_pipeline_get_first_component(struct komeda_pipeline *pipe,
u32 comp_mask)
{
struct komeda_component *c = NULL;
unsigned long comp_mask_local = (unsigned long)comp_mask;
int id;
id = find_first_bit(&comp_mask_local, 32);
if (id < 32)
c = komeda_pipeline_get_component(pipe, id);
return c;
}
static struct komeda_component *
komeda_component_pickup_input(struct komeda_component *c, u32 avail_comps)
{
u32 avail_inputs = c->supported_inputs & (avail_comps);
return komeda_pipeline_get_first_component(c->pipeline, avail_inputs);
}
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);
}
void komeda_pipeline_dump(struct komeda_pipeline *pipe)
{
struct komeda_component *c;
int id;
unsigned long avail_comps = pipe->avail_comps;
DRM_INFO("Pipeline-%d: n_layers: %d, n_scalers: %d, output: %s.\n",
pipe->id, pipe->n_layers, pipe->n_scalers,
pipe->dual_link ? "dual-link" : "single-link");
DRM_INFO(" output_link[0]: %s.\n",
pipe->of_output_links[0] ?
pipe->of_output_links[0]->full_name : "none");
DRM_INFO(" output_link[1]: %s.\n",
pipe->of_output_links[1] ?
pipe->of_output_links[1]->full_name : "none");
for_each_set_bit(id, &avail_comps, 32) {
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;
unsigned long supported_inputs = c->supported_inputs;
for_each_set_bit(id, &supported_inputs, 32) {
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 struct komeda_layer *
komeda_get_layer_split_right_layer(struct komeda_pipeline *pipe,
struct komeda_layer *left)
{
int index = left->base.id - KOMEDA_COMPONENT_LAYER0;
int i;
for (i = index + 1; i < pipe->n_layers; i++)
if (left->layer_type == pipe->layers[i]->layer_type)
return pipe->layers[i];
return NULL;
}
static void komeda_pipeline_assemble(struct komeda_pipeline *pipe)
{
struct komeda_component *c;
struct komeda_layer *layer;
int i, id;
unsigned long avail_comps = pipe->avail_comps;
for_each_set_bit(id, &avail_comps, 32) {
c = komeda_pipeline_get_component(pipe, id);
komeda_component_verify_inputs(c);
}
for (i = 0; i < pipe->n_layers; i++) {
layer = pipe->layers[i];
layer->right = komeda_get_layer_split_right_layer(pipe, layer);
}
if (pipe->dual_link && !pipe->ctrlr->supports_dual_link) {
pipe->dual_link = false;
DRM_WARN("PIPE-%d doesn't support dual-link, ignore DT dual-link configuration.\n",
pipe->id);
}
}
struct komeda_pipeline *
komeda_pipeline_get_slave(struct komeda_pipeline *master)
{
struct komeda_component *slave;
slave = komeda_component_pickup_input(&master->compiz->base,
KOMEDA_PIPELINE_COMPIZS);
return slave ? slave->pipeline : NULL;
}
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);
}
return 0;
}
void komeda_pipeline_dump_register(struct komeda_pipeline *pipe,
struct seq_file *sf)
{
struct komeda_component *c;
u32 id;
unsigned long avail_comps;
seq_printf(sf, "\n======== Pipeline-%d ==========\n", pipe->id);
if (pipe->funcs && pipe->funcs->dump_register)
pipe->funcs->dump_register(pipe, sf);
avail_comps = pipe->avail_comps;
for_each_set_bit(id, &avail_comps, 32) {
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);
}
}
