2 * Copyright (c) 2013 Google, Inc
4 * SPDX-License-Identifier: GPL-2.0+
15 DECLARE_GLOBAL_DATA_PTR;
22 int num_chars; /* Number of non-space characters output so far */
25 /* Crazy little function to draw shapes on the console */
26 static int shape_hello(struct udevice *dev, int ch)
28 const struct dm_demo_pdata *pdata = dev_get_platdata(dev);
29 struct shape_data *data = dev_get_priv(dev);
30 static const struct shape {
38 { HEIGHT / 2 - 1, WIDTH - HEIGHT / 2 + 1, -1, 1},
42 int line, pos, inside;
43 const char *colour = pdata->colour;
47 ch = pdata->default_char;
51 index = (pdata->sides / 2) - 1;
52 if (index >= ARRAY_SIZE(shapes))
54 shape = shapes[index];
56 for (line = 0; line < HEIGHT; line++) {
58 for (pos = 0; pos < WIDTH; pos++) {
59 inside = pos >= shape.start && pos < shape.end;
61 putc(first ? *colour++ : ch);
65 colour = pdata->colour;
71 shape.start += shape.dstart;
72 shape.end += shape.dend;
73 if (shape.start < 0) {
74 shape.dstart = -shape.dstart;
75 shape.dend = -shape.dend;
76 shape.start += shape.dstart;
77 shape.end += shape.dend;
84 static int shape_status(struct udevice *dev, int *status)
86 struct shape_data *data = dev_get_priv(dev);
88 *status = data->num_chars;
92 static const struct demo_ops shape_ops = {
94 .status = shape_status,
97 static int shape_ofdata_to_platdata(struct udevice *dev)
99 struct dm_demo_pdata *pdata = dev_get_platdata(dev);
102 /* Parse the data that is common with all demo devices */
103 ret = demo_parse_dt(dev);
107 /* Parse the data that only we need */
108 pdata->default_char = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
114 static const struct udevice_id demo_shape_id[] = {
119 U_BOOT_DRIVER(demo_shape_drv) = {
120 .name = "demo_shape_drv",
121 .of_match = demo_shape_id,
123 .ofdata_to_platdata = shape_ofdata_to_platdata,
125 .priv_auto_alloc_size = sizeof(struct shape_data),
126 .platdata_auto_alloc_size = sizeof(struct dm_demo_pdata),