[people/ms/u-boot.git] / scripts / dtc / treesource.c

/*
 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
 *
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *                                                                   USA
 */

#include "dtc.h"
#include "srcpos.h"

extern FILE *yyin;
extern int yyparse(void);
extern YYLTYPE yylloc;

struct dt_info *parser_output;
bool treesource_error;

struct dt_info *dt_from_source(const char *fname)
{
	parser_output = NULL;
	treesource_error = false;

	srcfile_push(fname);
	yyin = current_srcfile->f;
	yylloc.file = current_srcfile;

	if (yyparse() != 0)
		die("Unable to parse input tree\n");

	if (treesource_error)
		die("Syntax error parsing input tree\n");

	return parser_output;
}

static void write_prefix(FILE *f, int level)
{
	int i;

	for (i = 0; i < level; i++)
		fputc('\t', f);
}

static bool isstring(char c)
{
	return (isprint((unsigned char)c)
		|| (c == '\0')
		|| strchr("\a\b\t\n\v\f\r", c));
}

static void write_propval_string(FILE *f, struct data val)
{
	const char *str = val.val;
	int i;
	struct marker *m = val.markers;

	assert(str[val.len-1] == '\0');

	while (m && (m->offset == 0)) {
		if (m->type == LABEL)
			fprintf(f, "%s: ", m->ref);
		m = m->next;
	}
	fprintf(f, "\"");

	for (i = 0; i < (val.len-1); i++) {
		char c = str[i];

		switch (c) {
		case '\a':
			fprintf(f, "\\a");
			break;
		case '\b':
			fprintf(f, "\\b");
			break;
		case '\t':
			fprintf(f, "\\t");
			break;
		case '\n':
			fprintf(f, "\\n");
			break;
		case '\v':
			fprintf(f, "\\v");
			break;
		case '\f':
			fprintf(f, "\\f");
			break;
		case '\r':
			fprintf(f, "\\r");
			break;
		case '\\':
			fprintf(f, "\\\\");
			break;
		case '\"':
			fprintf(f, "\\\"");
			break;
		case '\0':
			fprintf(f, "\", ");
			while (m && (m->offset <= (i + 1))) {
				if (m->type == LABEL) {
					assert(m->offset == (i+1));
					fprintf(f, "%s: ", m->ref);
				}
				m = m->next;
			}
			fprintf(f, "\"");
			break;
		default:
			if (isprint((unsigned char)c))
				fprintf(f, "%c", c);
			else
				fprintf(f, "\\x%02hhx", c);
		}
	}
	fprintf(f, "\"");

	/* Wrap up any labels at the end of the value */
	for_each_marker_of_type(m, LABEL) {
		assert (m->offset == val.len);
		fprintf(f, " %s:", m->ref);
	}
}

static void write_propval_cells(FILE *f, struct data val)
{
	void *propend = val.val + val.len;
	fdt32_t *cp = (fdt32_t *)val.val;
	struct marker *m = val.markers;

	fprintf(f, "<");
	for (;;) {
		while (m && (m->offset <= ((char *)cp - val.val))) {
			if (m->type == LABEL) {
				assert(m->offset == ((char *)cp - val.val));
				fprintf(f, "%s: ", m->ref);
			}
			m = m->next;
		}

		fprintf(f, "0x%x", fdt32_to_cpu(*cp++));
		if ((void *)cp >= propend)
			break;
		fprintf(f, " ");
	}

	/* Wrap up any labels at the end of the value */
	for_each_marker_of_type(m, LABEL) {
		assert (m->offset == val.len);
		fprintf(f, " %s:", m->ref);
	}
	fprintf(f, ">");
}

static void write_propval_bytes(FILE *f, struct data val)
{
	void *propend = val.val + val.len;
	const char *bp = val.val;
	struct marker *m = val.markers;

	fprintf(f, "[");
	for (;;) {
		while (m && (m->offset == (bp-val.val))) {
			if (m->type == LABEL)
				fprintf(f, "%s: ", m->ref);
			m = m->next;
		}

		fprintf(f, "%02hhx", (unsigned char)(*bp++));
		if ((const void *)bp >= propend)
			break;
		fprintf(f, " ");
	}

	/* Wrap up any labels at the end of the value */
	for_each_marker_of_type(m, LABEL) {
		assert (m->offset == val.len);
		fprintf(f, " %s:", m->ref);
	}
	fprintf(f, "]");
}

static void write_propval(FILE *f, struct property *prop)
{
	int len = prop->val.len;
	const char *p = prop->val.val;
	struct marker *m = prop->val.markers;
	int nnotstring = 0, nnul = 0;
	int nnotstringlbl = 0, nnotcelllbl = 0;
	int i;

	if (len == 0) {
		fprintf(f, ";\n");
		return;
	}

	for (i = 0; i < len; i++) {
		if (! isstring(p[i]))
			nnotstring++;
		if (p[i] == '\0')
			nnul++;
	}

	for_each_marker_of_type(m, LABEL) {
		if ((m->offset > 0) && (prop->val.val[m->offset - 1] != '\0'))
			nnotstringlbl++;
		if ((m->offset % sizeof(cell_t)) != 0)
			nnotcelllbl++;
	}

	fprintf(f, " = ");
	if ((p[len-1] == '\0') && (nnotstring == 0) && (nnul < (len-nnul))
	    && (nnotstringlbl == 0)) {
		write_propval_string(f, prop->val);
	} else if (((len % sizeof(cell_t)) == 0) && (nnotcelllbl == 0)) {
		write_propval_cells(f, prop->val);
	} else {
		write_propval_bytes(f, prop->val);
	}

	fprintf(f, ";\n");
}

static void write_tree_source_node(FILE *f, struct node *tree, int level)
{
	struct property *prop;
	struct node *child;
	struct label *l;

	write_prefix(f, level);
	for_each_label(tree->labels, l)
		fprintf(f, "%s: ", l->label);
	if (tree->name && (*tree->name))
		fprintf(f, "%s {\n", tree->name);
	else
		fprintf(f, "/ {\n");

	for_each_property(tree, prop) {
		write_prefix(f, level+1);
		for_each_label(prop->labels, l)
			fprintf(f, "%s: ", l->label);
		fprintf(f, "%s", prop->name);
		write_propval(f, prop);
	}
	for_each_child(tree, child) {
		fprintf(f, "\n");
		write_tree_source_node(f, child, level+1);
	}
	write_prefix(f, level);
	fprintf(f, "};\n");
}


void dt_to_source(FILE *f, struct dt_info *dti)
{
	struct reserve_info *re;

	fprintf(f, "/dts-v1/;\n\n");

	for (re = dti->reservelist; re; re = re->next) {
		struct label *l;

		for_each_label(re->labels, l)
			fprintf(f, "%s: ", l->label);
		fprintf(f, "/memreserve/\t0x%016llx 0x%016llx;\n",
			(unsigned long long)re->address,
			(unsigned long long)re->size);
	}

	write_tree_source_node(f, dti->dt, 0);
}
Commit	Line	Data
c0e032e0 TR	1	/*
	2	* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
	3	*
	4	*
	5	* This program is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU General Public License as
	7	* published by the Free Software Foundation; either version 2 of the
	8	* License, or (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
	18	* USA
	19	*/
	20
	21	#include "dtc.h"
	22	#include "srcpos.h"
	23
	24	extern FILE *yyin;
	25	extern int yyparse(void);
	26	extern YYLTYPE yylloc;
	27
	28	struct dt_info *parser_output;
	29	bool treesource_error;
	30
	31	struct dt_info dt_from_source(const char fname)
	32	{
	33	parser_output = NULL;
	34	treesource_error = false;
	35
	36	srcfile_push(fname);
	37	yyin = current_srcfile->f;
	38	yylloc.file = current_srcfile;
	39
	40	if (yyparse() != 0)
	41	die("Unable to parse input tree\n");
	42
	43	if (treesource_error)
	44	die("Syntax error parsing input tree\n");
	45
	46	return parser_output;
	47	}
	48
	49	static void write_prefix(FILE *f, int level)
	50	{
	51	int i;
	52
	53	for (i = 0; i < level; i++)
	54	fputc('\t', f);
	55	}
	56
	57	static bool isstring(char c)
	58	{
	59	return (isprint((unsigned char)c)
	60	\|\| (c == '\0')
	61	\|\| strchr("\a\b\t\n\v\f\r", c));
	62	}
	63
	64	static void write_propval_string(FILE *f, struct data val)
65	{
66	const char *str = val.val;
67	int i;
68	struct marker *m = val.markers;
69
70	assert(str[val.len-1] == '\0');
71
72	while (m && (m->offset == 0)) {
73	if (m->type == LABEL)
74	fprintf(f, "%s: ", m->ref);
75	m = m->next;
76	}
77	fprintf(f, "\"");
78
79	for (i = 0; i < (val.len-1); i++) {
80	char c = str[i];
81
82	switch (c) {
83	case '\a':
84	fprintf(f, "\\a");
85	break;
86	case '\b':
87	fprintf(f, "\\b");
88	break;
89	case '\t':
90	fprintf(f, "\\t");
91	break;
92	case '\n':
93	fprintf(f, "\\n");
94	break;
95	case '\v':
96	fprintf(f, "\\v");
97	break;
98	case '\f':
99	fprintf(f, "\\f");
100	break;
101	case '\r':
102	fprintf(f, "\\r");
103	break;
104	case '\\':
105	fprintf(f, "\\\\");
106	break;
107	case '\"':
108	fprintf(f, "\\\"");
109	break;
110	case '\0':
111	fprintf(f, "\", ");
112	while (m && (m->offset <= (i + 1))) {
113	if (m->type == LABEL) {
114	assert(m->offset == (i+1));
115	fprintf(f, "%s: ", m->ref);
116	}
117	m = m->next;
118	}
119	fprintf(f, "\"");
120	break;
121	default:
122	if (isprint((unsigned char)c))
123	fprintf(f, "%c", c);
124	else
125	fprintf(f, "\\x%02hhx", c);
126	}
127	}
128	fprintf(f, "\"");
129
130	/* Wrap up any labels at the end of the value */
131	for_each_marker_of_type(m, LABEL) {
132	assert (m->offset == val.len);
133	fprintf(f, " %s:", m->ref);
134	}
135	}
136
137	static void write_propval_cells(FILE *f, struct data val)
138	{
139	void *propend = val.val + val.len;
d6fc90ce	140	fdt32_t cp = (fdt32_t )val.val;
c0e032e0 TR	141	struct marker *m = val.markers;
	142
	143	fprintf(f, "<");
	144	for (;;) {
	145	while (m && (m->offset <= ((char *)cp - val.val))) {
	146	if (m->type == LABEL) {
	147	assert(m->offset == ((char *)cp - val.val));
	148	fprintf(f, "%s: ", m->ref);
	149	}
	150	m = m->next;
	151	}
	152
	153	fprintf(f, "0x%x", fdt32_to_cpu(*cp++));
	154	if ((void *)cp >= propend)
	155	break;
	156	fprintf(f, " ");
	157	}
	158
	159	/* Wrap up any labels at the end of the value */
	160	for_each_marker_of_type(m, LABEL) {
	161	assert (m->offset == val.len);
	162	fprintf(f, " %s:", m->ref);
	163	}
	164	fprintf(f, ">");
	165	}
	166
	167	static void write_propval_bytes(FILE *f, struct data val)
	168	{
	169	void *propend = val.val + val.len;
	170	const char *bp = val.val;
	171	struct marker *m = val.markers;
	172
	173	fprintf(f, "[");
	174	for (;;) {
	175	while (m && (m->offset == (bp-val.val))) {
	176	if (m->type == LABEL)
	177	fprintf(f, "%s: ", m->ref);
	178	m = m->next;
	179	}
	180
	181	fprintf(f, "%02hhx", (unsigned char)(*bp++));
	182	if ((const void *)bp >= propend)
	183	break;
	184	fprintf(f, " ");
	185	}
	186
	187	/* Wrap up any labels at the end of the value */
	188	for_each_marker_of_type(m, LABEL) {
	189	assert (m->offset == val.len);
	190	fprintf(f, " %s:", m->ref);
	191	}
	192	fprintf(f, "]");
	193	}
	194
	195	static void write_propval(FILE f, struct property prop)
	196	{
	197	int len = prop->val.len;
	198	const char *p = prop->val.val;
	199	struct marker *m = prop->val.markers;
	200	int nnotstring = 0, nnul = 0;
	201	int nnotstringlbl = 0, nnotcelllbl = 0;
	202	int i;
	203
	204	if (len == 0) {
205	fprintf(f, ";\n");
206	return;
207	}
208
209	for (i = 0; i < len; i++) {
210	if (! isstring(p[i]))
211	nnotstring++;
212	if (p[i] == '\0')
213	nnul++;
214	}
215
216	for_each_marker_of_type(m, LABEL) {
217	if ((m->offset > 0) && (prop->val.val[m->offset - 1] != '\0'))
218	nnotstringlbl++;
219	if ((m->offset % sizeof(cell_t)) != 0)
220	nnotcelllbl++;
221	}
222
223	fprintf(f, " = ");
224	if ((p[len-1] == '\0') && (nnotstring == 0) && (nnul < (len-nnul))
225	&& (nnotstringlbl == 0)) {
226	write_propval_string(f, prop->val);
227	} else if (((len % sizeof(cell_t)) == 0) && (nnotcelllbl == 0)) {
228	write_propval_cells(f, prop->val);
229	} else {
230	write_propval_bytes(f, prop->val);
231	}
232
233	fprintf(f, ";\n");
234	}
235
236	static void write_tree_source_node(FILE f, struct node tree, int level)
237	{
238	struct property *prop;
239	struct node *child;
240	struct label *l;
241
242	write_prefix(f, level);
243	for_each_label(tree->labels, l)
244	fprintf(f, "%s: ", l->label);
245	if (tree->name && (*tree->name))
246	fprintf(f, "%s {\n", tree->name);
247	else
248	fprintf(f, "/ {\n");
249
250	for_each_property(tree, prop) {
251	write_prefix(f, level+1);
252	for_each_label(prop->labels, l)
253	fprintf(f, "%s: ", l->label);
254	fprintf(f, "%s", prop->name);
255	write_propval(f, prop);
256	}
257	for_each_child(tree, child) {
258	fprintf(f, "\n");
259	write_tree_source_node(f, child, level+1);
260	}
261	write_prefix(f, level);
262	fprintf(f, "};\n");
263	}
264
265
266	void dt_to_source(FILE f, struct dt_info dti)
267	{
268	struct reserve_info *re;
269
270	fprintf(f, "/dts-v1/;\n\n");
271
272	for (re = dti->reservelist; re; re = re->next) {
273	struct label *l;
274
275	for_each_label(re->labels, l)
276	fprintf(f, "%s: ", l->label);
277	fprintf(f, "/memreserve/\t0x%016llx 0x%016llx;\n",
d6fc90ce TR	278	(unsigned long long)re->address,
d6fc90ce TR	279	(unsigned long long)re->size);
c0e032e0 TR	280	}
	281
	282	write_tree_source_node(f, dti->dt, 0);
	283	}
	284