1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Provide a menu of available bootflows and related options
4 *
5 * Copyright 2022 Google LLC
6 * Written by Simon Glass <sjg@chromium.org>
7 */
8
9 #define LOG_CATEGORY UCLASS_BOOTSTD
10
11 #include <common.h>
12 #include <bootflow.h>
13 #include <bootstd.h>
14 #include <cli.h>
15 #include <dm.h>
16 #include <expo.h>
17 #include <malloc.h>
18 #include <menu.h>
19 #include <video_console.h>
20 #include <watchdog.h>
21 #include <linux/delay.h>
22 #include "bootflow_internal.h"
23
24 /**
25 * struct menu_priv - information about the menu
26 *
27 * @num_bootflows: Number of bootflows in the menu
28 */
29 struct menu_priv {
30 int num_bootflows;
31 };
32
bootflow_menu_new(struct expo ** expp)33 int bootflow_menu_new(struct expo **expp)
34 {
35 struct udevice *last_bootdev;
36 struct scene_obj_menu *menu;
37 struct menu_priv *priv;
38 struct bootflow *bflow;
39 struct scene *scn;
40 struct expo *exp;
41 void *logo;
42 int ret, i;
43
44 priv = calloc(1, sizeof(*priv));
45 if (!priv)
46 return log_msg_ret("prv", -ENOMEM);
47
48 ret = expo_new("bootflows", priv, &exp);
49 if (ret)
50 return log_msg_ret("exp", ret);
51
52 ret = scene_new(exp, "main", MAIN, &scn);
53 if (ret < 0)
54 return log_msg_ret("scn", ret);
55
56 ret |= scene_txt_str(scn, "prompt", OBJ_PROMPT, STR_PROMPT,
57 "UP and DOWN to choose, ENTER to select", NULL);
58
59 ret = scene_menu(scn, "main", OBJ_MENU, &menu);
60 ret |= scene_obj_set_pos(scn, OBJ_MENU, MARGIN_LEFT, 100);
61 ret |= scene_txt_str(scn, "title", OBJ_MENU_TITLE, STR_MENU_TITLE,
62 "U-Boot - Boot Menu", NULL);
63 ret |= scene_menu_set_title(scn, OBJ_MENU, OBJ_PROMPT);
64
65 logo = video_get_u_boot_logo();
66 if (logo) {
67 ret |= scene_img(scn, "ulogo", OBJ_U_BOOT_LOGO, logo, NULL);
68 ret |= scene_obj_set_pos(scn, OBJ_U_BOOT_LOGO, -4, 4);
69 }
70
71 ret |= scene_txt_str(scn, "cur_item", OBJ_POINTER, STR_POINTER, ">",
72 NULL);
73 ret |= scene_menu_set_pointer(scn, OBJ_MENU, OBJ_POINTER);
74 if (ret < 0)
75 return log_msg_ret("new", -EINVAL);
76
77 last_bootdev = NULL;
78 for (ret = bootflow_first_glob(&bflow), i = 0; !ret && i < 36;
79 ret = bootflow_next_glob(&bflow), i++) {
80 char str[2], *label, *key;
81 uint preview_id;
82 bool add_gap;
83
84 if (bflow->state != BOOTFLOWST_READY)
85 continue;
86
87 *str = i < 10 ? '0' + i : 'A' + i - 10;
88 str[1] = '\0';
89 key = strdup(str);
90 if (!key)
91 return log_msg_ret("key", -ENOMEM);
92 label = strdup(dev_get_parent(bflow->dev)->name);
93 if (!label) {
94 free(key);
95 return log_msg_ret("nam", -ENOMEM);
96 }
97
98 add_gap = last_bootdev != bflow->dev;
99 last_bootdev = bflow->dev;
100
101 ret = expo_str(exp, "prompt", STR_POINTER, ">");
102 ret |= scene_txt_str(scn, "label", ITEM_LABEL + i,
103 STR_LABEL + i, label, NULL);
104 ret |= scene_txt_str(scn, "desc", ITEM_DESC + i, STR_DESC + i,
105 bflow->os_name ? bflow->os_name :
106 bflow->name, NULL);
107 ret |= scene_txt_str(scn, "key", ITEM_KEY + i, STR_KEY + i, key,
108 NULL);
109 preview_id = 0;
110 if (bflow->logo) {
111 preview_id = ITEM_PREVIEW + i;
112 ret |= scene_img(scn, "preview", preview_id,
113 bflow->logo, NULL);
114 }
115 ret |= scene_menuitem(scn, OBJ_MENU, "item", ITEM + i,
116 ITEM_KEY + i, ITEM_LABEL + i,
117 ITEM_DESC + i, preview_id,
118 add_gap ? SCENEMIF_GAP_BEFORE : 0,
119 NULL);
120
121 if (ret < 0)
122 return log_msg_ret("itm", -EINVAL);
123 ret = 0;
124 priv->num_bootflows++;
125 }
126
127 *expp = exp;
128
129 return 0;
130 }
131
bootflow_menu_apply_theme(struct expo * exp,ofnode node)132 int bootflow_menu_apply_theme(struct expo *exp, ofnode node)
133 {
134 struct menu_priv *priv = exp->priv;
135 struct scene *scn;
136 u32 font_size;
137 int ret;
138
139 log_debug("Applying theme %s\n", ofnode_get_name(node));
140 scn = expo_lookup_scene_id(exp, MAIN);
141 if (!scn)
142 return log_msg_ret("scn", -ENOENT);
143
144 /* Avoid error-checking optional items */
145 if (!ofnode_read_u32(node, "font-size", &font_size)) {
146 int i;
147
148 log_debug("font size %d\n", font_size);
149 scene_txt_set_font(scn, OBJ_PROMPT, NULL, font_size);
150 scene_txt_set_font(scn, OBJ_POINTER, NULL, font_size);
151 for (i = 0; i < priv->num_bootflows; i++) {
152 ret = scene_txt_set_font(scn, ITEM_DESC + i, NULL,
153 font_size);
154 if (ret)
155 return log_msg_ret("des", ret);
156 scene_txt_set_font(scn, ITEM_KEY + i, NULL, font_size);
157 scene_txt_set_font(scn, ITEM_LABEL + i, NULL,
158 font_size);
159 }
160 }
161
162 ret = scene_arrange(scn);
163 if (ret)
164 return log_msg_ret("arr", ret);
165
166 return 0;
167 }
168
bootflow_menu_run(struct bootstd_priv * std,bool text_mode,struct bootflow ** bflowp)169 int bootflow_menu_run(struct bootstd_priv *std, bool text_mode,
170 struct bootflow **bflowp)
171 {
172 struct cli_ch_state s_cch, *cch = &s_cch;
173 struct bootflow *sel_bflow;
174 struct udevice *dev;
175 struct expo *exp;
176 uint sel_id;
177 bool done;
178 int ret;
179
180 cli_ch_init(cch);
181
182 sel_bflow = NULL;
183 *bflowp = NULL;
184
185 ret = bootflow_menu_new(&exp);
186 if (ret)
187 return log_msg_ret("exp", ret);
188
189 if (ofnode_valid(std->theme)) {
190 ret = bootflow_menu_apply_theme(exp, std->theme);
191 if (ret)
192 return log_msg_ret("thm", ret);
193 }
194
195 /* For now we only support a video console */
196 ret = uclass_first_device_err(UCLASS_VIDEO, &dev);
197 if (ret)
198 return log_msg_ret("vid", ret);
199 ret = expo_set_display(exp, dev);
200 if (ret)
201 return log_msg_ret("dis", ret);
202
203 ret = expo_set_scene_id(exp, MAIN);
204 if (ret)
205 return log_msg_ret("scn", ret);
206
207 if (text_mode)
208 exp_set_text_mode(exp, text_mode);
209
210 done = false;
211 do {
212 struct expo_action act;
213 int ichar, key;
214
215 ret = expo_render(exp);
216 if (ret)
217 break;
218
219 ichar = cli_ch_process(cch, 0);
220 if (!ichar) {
221 while (!ichar && !tstc()) {
222 schedule();
223 mdelay(2);
224 ichar = cli_ch_process(cch, -ETIMEDOUT);
225 }
226 if (!ichar) {
227 ichar = getchar();
228 ichar = cli_ch_process(cch, ichar);
229 }
230 }
231
232 key = 0;
233 if (ichar) {
234 key = bootmenu_conv_key(ichar);
235 if (key == BKEY_NONE)
236 key = ichar;
237 }
238 if (!key)
239 continue;
240
241 ret = expo_send_key(exp, key);
242 if (ret)
243 break;
244
245 ret = expo_action_get(exp, &act);
246 if (!ret) {
247 switch (act.type) {
248 case EXPOACT_SELECT:
249 sel_id = act.select.id;
250 done = true;
251 break;
252 case EXPOACT_QUIT:
253 done = true;
254 break;
255 default:
256 break;
257 }
258 }
259 } while (!done);
260
261 if (ret)
262 return log_msg_ret("end", ret);
263
264 if (sel_id) {
265 struct bootflow *bflow;
266 int i;
267
268 for (ret = bootflow_first_glob(&bflow), i = 0; !ret && i < 36;
269 ret = bootflow_next_glob(&bflow), i++) {
270 if (i == sel_id - ITEM) {
271 sel_bflow = bflow;
272 break;
273 }
274 }
275 }
276
277 expo_destroy(exp);
278
279 if (!sel_bflow)
280 return -EAGAIN;
281 *bflowp = sel_bflow;
282
283 return 0;
284 }
285