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// SPDX-License-Identifier: GPL-2.0+
/*
* Implementation of a expo, a collection of scenes providing menu options
*
* Copyright 2022 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#define LOG_CATEGORY LOGC_EXPO
#include <common.h>
#include <dm.h>
#include <expo.h>
#include <malloc.h>
#include <video.h>
#include "scene_internal.h"
int expo_new(const char *name, void *priv, struct expo **expp)
{
struct expo *exp;
exp = calloc(1, sizeof(struct expo));
if (!exp)
return log_msg_ret("expo", -ENOMEM);
exp->name = strdup(name);
if (!exp->name) {
free(exp);
return log_msg_ret("name", -ENOMEM);
}
exp->priv = priv;
INIT_LIST_HEAD(&exp->scene_head);
INIT_LIST_HEAD(&exp->str_head);
*expp = exp;
return 0;
}
static void estr_destroy(struct expo_string *estr)
{
free(estr);
}
void expo_destroy(struct expo *exp)
{
struct scene *scn, *next;
struct expo_string *estr, *enext;
list_for_each_entry_safe(scn, next, &exp->scene_head, sibling)
scene_destroy(scn);
list_for_each_entry_safe(estr, enext, &exp->str_head, sibling)
estr_destroy(estr);
free(exp->name);
free(exp);
}
uint resolve_id(struct expo *exp, uint id)
{
if (!id)
id = exp->next_id++;
else if (id >= exp->next_id)
exp->next_id = id + 1;
return id;
}
void expo_set_dynamic_start(struct expo *exp, uint dyn_start)
{
exp->next_id = dyn_start;
}
int expo_str(struct expo *exp, const char *name, uint id, const char *str)
{
struct expo_string *estr;
estr = calloc(1, sizeof(struct expo_string));
if (!estr)
return log_msg_ret("obj", -ENOMEM);
estr->id = resolve_id(exp, id);
estr->str = str;
list_add_tail(&estr->sibling, &exp->str_head);
return estr->id;
}
const char *expo_get_str(struct expo *exp, uint id)
{
struct expo_string *estr;
list_for_each_entry(estr, &exp->str_head, sibling) {
if (estr->id == id)
return estr->str;
}
return NULL;
}
int expo_set_display(struct expo *exp, struct udevice *dev)
{
struct udevice *cons;
int ret;
ret = device_find_first_child_by_uclass(dev, UCLASS_VIDEO_CONSOLE,
&cons);
if (ret)
return log_msg_ret("con", ret);
exp->display = dev;
exp->cons = cons;
return 0;
}
void expo_set_text_mode(struct expo *exp, bool text_mode)
{
exp->text_mode = text_mode;
}
struct scene *expo_lookup_scene_id(struct expo *exp, uint scene_id)
{
struct scene *scn;
list_for_each_entry(scn, &exp->scene_head, sibling) {
if (scn->id == scene_id)
return scn;
}
return NULL;
}
int expo_set_scene_id(struct expo *exp, uint scene_id)
{
struct scene *scn;
int ret;
scn = expo_lookup_scene_id(exp, scene_id);
if (!scn)
return log_msg_ret("id", -ENOENT);
ret = scene_arrange(scn);
if (ret)
return log_msg_ret("arr", ret);
exp->scene_id = scene_id;
return 0;
}
int expo_render(struct expo *exp)
{
struct udevice *dev = exp->display;
struct video_priv *vid_priv = dev_get_uclass_priv(dev);
struct scene *scn = NULL;
u32 colour;
int ret;
colour = video_index_to_colour(vid_priv, VID_WHITE);
ret = video_fill(dev, colour);
if (ret)
return log_msg_ret("fill", ret);
if (exp->scene_id) {
scn = expo_lookup_scene_id(exp, exp->scene_id);
if (!scn)
return log_msg_ret("scn", -ENOENT);
ret = scene_render(scn);
if (ret)
return log_msg_ret("ren", ret);
}
video_sync(dev, true);
return scn ? 0 : -ECHILD;
}
int expo_send_key(struct expo *exp, int key)
{
struct scene *scn = NULL;
if (exp->scene_id) {
int ret;
scn = expo_lookup_scene_id(exp, exp->scene_id);
if (!scn)
return log_msg_ret("scn", -ENOENT);
ret = scene_send_key(scn, key, &exp->action);
if (ret)
return log_msg_ret("key", ret);
/* arrange it to get any changes */
ret = scene_arrange(scn);
if (ret)
return log_msg_ret("arr", ret);
}
return scn ? 0 : -ECHILD;
}
int expo_action_get(struct expo *exp, struct expo_action *act)
{
*act = exp->action;
exp->action.type = EXPOACT_NONE;
return act->type == EXPOACT_NONE ? -EAGAIN : 0;
}
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