2 * Copyright (C) Paul Mackerras 1997.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
10 #include <linux/types.h>
11 #include <linux/string.h>
12 #include <linux/ctype.h>
22 void *finddevice(const char *name);
23 int getprop(void *phandle, const char *name, void *buf, int buflen);
24 void chrpboot(int a1, int a2, void *prom); /* in main.c */
26 void printk(char *fmt, ...);
28 /* there is no convenient header to get this from... -- paulus */
29 extern unsigned long strlen(const char *);
32 write(void *handle, void *ptr, int nb)
44 args.service = "write";
47 args.ihandle = handle;
56 read(void *handle, void *ptr, int nb)
68 args.service = "read";
71 args.ihandle = handle;
87 args.service = "exit";
99 args.service = "enter";
104 finddevice(const char *name)
114 args.service = "finddevice";
118 args.phandle = (void *) -1;
124 claim(unsigned long virt, unsigned long size, unsigned long align)
136 args.service = "claim";
147 getprop(void *phandle, const char *name, void *buf, int buflen)
160 args.service = "getprop";
163 args.phandle = phandle;
166 args.buflen = buflen;
179 return write(f, &ch, 1) == 1? c: -1;
185 return putc(c, stdout);
189 fputs(char *str, void *f)
193 return write(f, str, n) == n? 0: -1;
202 switch (read(stdin, &ch, 1)) {
206 printk("read(stdin) returned -1\r\n");
212 static char line[256];
213 static char *lineptr;
225 if (c == -1 || c == 4)
227 if (c == '\r' || c == '\n') {
235 if (lineptr > line) {
243 while (lineptr > line) {
251 if (lineptr >= &line[sizeof(line) - 1])
259 lineleft = lineptr - line;
270 /* String functions lifted from lib/vsprintf.c and lib/ctype.c */
271 unsigned char _ctype[] = {
272 _C,_C,_C,_C,_C,_C,_C,_C, /* 0-7 */
273 _C,_C|_S,_C|_S,_C|_S,_C|_S,_C|_S,_C,_C, /* 8-15 */
274 _C,_C,_C,_C,_C,_C,_C,_C, /* 16-23 */
275 _C,_C,_C,_C,_C,_C,_C,_C, /* 24-31 */
276 _S|_SP,_P,_P,_P,_P,_P,_P,_P, /* 32-39 */
277 _P,_P,_P,_P,_P,_P,_P,_P, /* 40-47 */
278 _D,_D,_D,_D,_D,_D,_D,_D, /* 48-55 */
279 _D,_D,_P,_P,_P,_P,_P,_P, /* 56-63 */
280 _P,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U, /* 64-71 */
281 _U,_U,_U,_U,_U,_U,_U,_U, /* 72-79 */
282 _U,_U,_U,_U,_U,_U,_U,_U, /* 80-87 */
283 _U,_U,_U,_P,_P,_P,_P,_P, /* 88-95 */
284 _P,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L, /* 96-103 */
285 _L,_L,_L,_L,_L,_L,_L,_L, /* 104-111 */
286 _L,_L,_L,_L,_L,_L,_L,_L, /* 112-119 */
287 _L,_L,_L,_P,_P,_P,_P,_C, /* 120-127 */
288 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 128-143 */
289 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 144-159 */
290 _S|_SP,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P, /* 160-175 */
291 _P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P, /* 176-191 */
292 _U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U, /* 192-207 */
293 _U,_U,_U,_U,_U,_U,_U,_P,_U,_U,_U,_U,_U,_U,_U,_L, /* 208-223 */
294 _L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L, /* 224-239 */
295 _L,_L,_L,_L,_L,_L,_L,_P,_L,_L,_L,_L,_L,_L,_L,_L}; /* 240-255 */
297 size_t strnlen(const char * s, size_t count)
301 for (sc = s; count-- && *sc != '\0'; ++sc)
306 unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
308 unsigned long result = 0,value;
315 if ((*cp == 'x') && isxdigit(cp[1])) {
321 while (isxdigit(*cp) &&
322 (value = isdigit(*cp) ? *cp-'0' : toupper(*cp)-'A'+10) < base) {
323 result = result*base + value;
331 long simple_strtol(const char *cp,char **endp,unsigned int base)
334 return -simple_strtoul(cp+1,endp,base);
335 return simple_strtoul(cp,endp,base);
338 static int skip_atoi(const char **s)
343 i = i*10 + *((*s)++) - '0';
347 #define ZEROPAD 1 /* pad with zero */
348 #define SIGN 2 /* unsigned/signed long */
349 #define PLUS 4 /* show plus */
350 #define SPACE 8 /* space if plus */
351 #define LEFT 16 /* left justified */
352 #define SPECIAL 32 /* 0x */
353 #define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */
355 static char * number(char * str, long num, int base, int size, int precision, int type)
358 const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
362 digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
365 if (base < 2 || base > 36)
367 c = (type & ZEROPAD) ? '0' : ' ';
374 } else if (type & PLUS) {
377 } else if (type & SPACE) {
382 if (type & SPECIAL) {
391 else while (num != 0) {
392 tmp[i++] = digits[num % base];
398 if (!(type&(ZEROPAD+LEFT)))
403 if (type & SPECIAL) {
414 while (i < precision--)
423 /* Forward decl. needed for IP address printing stuff... */
424 int sprintf(char * buf, const char *fmt, ...);
426 int vsprintf(char *buf, const char *fmt, va_list args)
434 int flags; /* flags to number() */
436 int field_width; /* width of output field */
437 int precision; /* min. # of digits for integers; max
438 number of chars for from string */
439 int qualifier; /* 'h', 'l', or 'L' for integer fields */
440 /* 'z' support added 23/7/1999 S.H. */
441 /* 'z' changed to 'Z' --davidm 1/25/99 */
444 for (str=buf ; *fmt ; ++fmt) {
453 ++fmt; /* this also skips first '%' */
455 case '-': flags |= LEFT; goto repeat;
456 case '+': flags |= PLUS; goto repeat;
457 case ' ': flags |= SPACE; goto repeat;
458 case '#': flags |= SPECIAL; goto repeat;
459 case '0': flags |= ZEROPAD; goto repeat;
462 /* get field width */
465 field_width = skip_atoi(&fmt);
466 else if (*fmt == '*') {
468 /* it's the next argument */
469 field_width = va_arg(args, int);
470 if (field_width < 0) {
471 field_width = -field_width;
476 /* get the precision */
481 precision = skip_atoi(&fmt);
482 else if (*fmt == '*') {
484 /* it's the next argument */
485 precision = va_arg(args, int);
491 /* get the conversion qualifier */
493 if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || *fmt =='Z') {
504 while (--field_width > 0)
506 *str++ = (unsigned char) va_arg(args, int);
507 while (--field_width > 0)
512 s = va_arg(args, char *);
516 len = strnlen(s, precision);
519 while (len < field_width--)
521 for (i = 0; i < len; ++i)
523 while (len < field_width--)
528 if (field_width == -1) {
529 field_width = 2*sizeof(void *);
533 (unsigned long) va_arg(args, void *), 16,
534 field_width, precision, flags);
539 if (qualifier == 'l') {
540 long * ip = va_arg(args, long *);
542 } else if (qualifier == 'Z') {
543 size_t * ip = va_arg(args, size_t *);
546 int * ip = va_arg(args, int *);
555 /* integer number formats - set up the flags and "break" */
580 if (qualifier == 'l') {
581 num = va_arg(args, unsigned long);
583 num = (signed long) num;
584 } else if (qualifier == 'Z') {
585 num = va_arg(args, size_t);
586 } else if (qualifier == 'h') {
587 num = (unsigned short) va_arg(args, int);
589 num = (signed short) num;
591 num = va_arg(args, unsigned int);
593 num = (signed int) num;
595 str = number(str, num, base, field_width, precision, flags);
601 int sprintf(char * buf, const char *fmt, ...)
607 i=vsprintf(buf,fmt,args);
612 static char sprint_buf[1024];
615 printk(char *fmt, ...)
621 n = vsprintf(sprint_buf, fmt, args);
623 write(stdout, sprint_buf, n);
627 printf(char *fmt, ...)
633 n = vsprintf(sprint_buf, fmt, args);
635 write(stdout, sprint_buf, n);