diff options
Diffstat (limited to 'boot/expo.c')
| -rw-r--r-- | boot/expo.c | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/boot/expo.c b/boot/expo.c new file mode 100644 index 00000000000..ed01483f1d3 --- /dev/null +++ b/boot/expo.c @@ -0,0 +1,284 @@ +// 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 <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) +{ + log_debug("resolve id %d\n", 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; +} + +int expo_calc_dims(struct expo *exp) +{ + struct scene *scn; + int ret; + + if (!exp->cons) + return log_msg_ret("dim", -ENOTSUPP); + + list_for_each_entry(scn, &exp->scene_head, sibling) { + /* + * Do the menus last so that all the menus' text objects + * are dimensioned + */ + ret = scene_calc_dims(scn, false); + if (ret) + return log_msg_ret("scn", ret); + ret = scene_calc_dims(scn, true); + if (ret) + return log_msg_ret("scn", ret); + } + + 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_first_scene_id(struct expo *exp) +{ + struct scene *scn; + + if (list_empty(&exp->scene_head)) + return -ENOENT; + + scn = list_first_entry(&exp->scene_head, struct scene, sibling); + + return scn->id; +} + +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; + enum colour_idx back; + u32 colour; + int ret; + + back = CONFIG_IS_ENABLED(SYS_WHITE_ON_BLACK) ? VID_BLACK : VID_WHITE; + colour = video_index_to_colour(vid_priv, back); + 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; +} + +int expo_apply_theme(struct expo *exp, ofnode node) +{ + struct scene *scn; + struct expo_theme *theme = &exp->theme; + int ret; + + log_debug("Applying theme %s\n", ofnode_get_name(node)); + + memset(theme, '\0', sizeof(struct expo_theme)); + ofnode_read_u32(node, "font-size", &theme->font_size); + ofnode_read_u32(node, "menu-inset", &theme->menu_inset); + ofnode_read_u32(node, "menuitem-gap-y", &theme->menuitem_gap_y); + + list_for_each_entry(scn, &exp->scene_head, sibling) { + ret = scene_apply_theme(scn, theme); + if (ret) + return log_msg_ret("app", ret); + } + + return 0; +} + +int expo_iter_scene_objs(struct expo *exp, expo_scene_obj_iterator iter, + void *priv) +{ + struct scene *scn; + int ret; + + list_for_each_entry(scn, &exp->scene_head, sibling) { + ret = scene_iter_objs(scn, iter, priv); + if (ret) + return log_msg_ret("wr", ret); + } + + return 0; +} |