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authorEric Biederman <ebiederm@xmission.com>2003-04-22 19:02:15 +0000
committerEric Biederman <ebiederm@xmission.com>2003-04-22 19:02:15 +0000
commit8ca8d7665d671e10d72b8fcb4d69121d75f7906e (patch)
treedaad2699b4e6b6014bce5a76e82dd9c974801777 /util/options/build_opt_tbl.c
parentb138ac83b53da9abf3dc9a87a1cd4b3d3a8150bd (diff)
downloadcoreboot-8ca8d7665d671e10d72b8fcb4d69121d75f7906e.tar.xz
- Initial checkin of the freebios2 tree
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@784 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/options/build_opt_tbl.c')
-rw-r--r--util/options/build_opt_tbl.c443
1 files changed, 443 insertions, 0 deletions
diff --git a/util/options/build_opt_tbl.c b/util/options/build_opt_tbl.c
new file mode 100644
index 0000000000..6a489bdb52
--- /dev/null
+++ b/util/options/build_opt_tbl.c
@@ -0,0 +1,443 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/io.h>
+#include <string.h>
+#include <ctype.h>
+#include "../../src/include/pc80/mc146818rtc.h"
+#include "../../src/include/boot/linuxbios_tables.h"
+
+#define CMOS_IMAGE_BUFFER_SIZE 128
+#define INPUT_LINE_MAX 256
+#define MAX_VALUE_BYTE_LENGTH 64
+
+
+static unsigned char cmos_table[4096];
+
+/* This array is used to isolate bits that are to be changed in a byte */
+static unsigned char clip[9]={0,1,3,7,0x0f,0x1f,0x3f,0x7f,0xff};
+
+
+/* This routine loops through the entried and tests if any of the fields overlap
+ input entry_start = the memory pointer to the start of the entries.
+ entry_end = the byte past the entries.
+ output none
+ if there is an overlap, the routine exits, other wise it returns.
+*/
+void test_for_entry_overlaps(int entry_start,int entry_end)
+{
+ int ptr;
+ int buffer_bit_size;
+ int offset;
+ int byte;
+ int byte_length;
+ struct cmos_entries *ce;
+ unsigned char test[CMOS_IMAGE_BUFFER_SIZE];
+ unsigned char set;
+
+ /* calculate the size of the cmos buffer in bits */
+ buffer_bit_size=(CMOS_IMAGE_BUFFER_SIZE*8);
+ /* clear the temporary test buffer */
+ for(ptr=0;ptr<CMOS_IMAGE_BUFFER_SIZE;ptr++)
+ test[ptr]=0;
+ /* loop through each entry in the table testing for errors */
+ for(ptr=entry_start;ptr<entry_end;ptr+=ce->size) {
+ ce=(struct cmos_entries *)ptr;
+ /* test if entry goes past the end of the buffer */
+ if((ce->bit+ce->length)>buffer_bit_size) {
+ printf("Error - Entry %s start bit + length must be less than %d\n",
+ ce->name,buffer_bit_size);
+ exit(1);
+ }
+ byte=ce->bit/8;
+ offset=ce->bit%8;
+ byte_length=ce->length/8;
+ if(byte_length) { /* entry is 8 bits long or more */
+ if(offset) { /* if 8 bits or more long, it must be byte aligned */
+ printf("Error - Entry %s length over 8 must be byte aligned\n",
+ ce->name);
+ exit(1);
+ }
+ /* test if entries 8 or more in length are even bytes */
+ if(ce->length%8){
+ printf("Error - Entry %s length over 8 must be a multiple of 8\n",
+ ce->name);
+ exit(1);
+ }
+ /* test if any of the bits have been previously used */
+ for(;byte_length;byte_length--,byte++) {
+ if(test[byte]) {
+ printf("Error - Entry %s uses same bits previously used\n",
+ ce->name);
+ exit(1);
+ }
+ test[byte]=clip[8]; /* set the bits defined in test */
+ }
+ } else {
+ /* test if bits overlap byte boundaries */
+ if(ce->length>(8-offset)) {
+ printf("Error - Entry %s length overlaps a byte boundry\n", ce->name);
+ exit(1);
+ }
+ /* test for bits previously used */
+ set=(clip[ce->length]<<offset);
+ if(test[byte]&set) {
+ printf("Error - Entry %s uses same bits previously used\n",
+ ce->name);
+ exit(1);
+ }
+ test[byte]|=set; /* set the bits defined in test */
+ }
+ }
+ return;
+}
+
+/* This routine displays the usage options */
+void display_usage(void)
+{
+ printf("Usage build_opt_table [-b] [--option filename]\n");
+ printf(" [--config filename]\n");
+ printf("b = build option_table.c\n");
+ printf("--option = name of option table output file\n");
+ printf("--config = build the definitions table from the given file\n");
+ exit(1);
+}
+
+
+static void skip_spaces(char *line, char **ptr)
+{
+ if (!isspace(**ptr)) {
+ printf("Error missing whitespace in line\n%s\n", line);
+ exit(1);
+ }
+ while(isspace(**ptr)) {
+ (*ptr)++;
+ }
+ return;
+}
+static unsigned long get_number(char *line, char **ptr, int base)
+{
+ unsigned long value;
+ char *ptr2;
+ value = strtoul(*ptr, &ptr2, base);
+ if (ptr2 == *ptr) {
+ printf("Error missing digits at: \n%s\n in line:\n%s\n",
+ *ptr, line);
+ exit(1);
+ }
+ *ptr = ptr2;
+ return value;
+}
+
+/* This routine builds the cmos definition table from the cmos layout file
+ input The input comes from the configuration file which contains two parts
+ entries and enumerations. Each section is started with the key words
+ entries and enumerations. Records then follow in their respective
+ formats.
+ output The output of this program is the cmos definitions table. It is stored
+ in the cmos_table array. If this module is called, and the global
+ table_file has been implimented by the user, the table is also written
+ to the specified file.
+ This program exits on and error. It returns a 1 on successful
+ completion
+*/
+int main(int argc, char **argv)
+{
+ int i;
+ char *config=0;
+ char *option=0;
+ FILE *fp;
+ struct cmos_option_table *ct;
+ struct cmos_entries *ce;
+ struct cmos_enums *c_enums, *c_enums_start;
+ struct cmos_checksum *cs;
+ unsigned char line[INPUT_LINE_MAX];
+ unsigned char uc;
+ int entry_mode=0;
+ int enum_mode=0;
+ int checksum_mode=0;
+ int ptr,cnt;
+ char *cptr;
+ int offset,entry_start;
+ int entries_length;
+ int enum_length;
+ int len;
+ unsigned char buf[16];
+
+ for(i=1;i<argc;i++) {
+ if(argv[i][0]!='-') {
+ display_usage();
+ }
+ switch(argv[i][1]) {
+ case 'b': /* build the table */
+ break;
+ case '-': /* data is requested from a file */
+ switch(argv[i][2]) {
+ case 'c': /* use a configuration file */
+ if(strcmp(&argv[i][2],"config")) {
+ display_usage();
+ }
+ config=argv[++i];
+ break;
+ case 'o': /* use a cmos definitions table file */
+ if(strcmp(&argv[i][2],"option")) {
+ display_usage();
+ }
+ option=argv[++i];
+ break;
+ default:
+ display_usage();
+ break;
+ }
+ break;
+ default:
+ display_usage();
+ break;
+ }
+ }
+
+
+ /* Has the user specified a configuration file */
+ if(config) { /* if yes, open it */
+ if((fp=fopen(config,"r"))==NULL){
+ printf("Error - Can not open config file %s\n",config);
+ exit(1); /* exit if it can not be opened */
+ }
+ }
+ else { /* no configuration file specified, so try the default */
+ if((fp=fopen("cmos.layout","r"))==NULL){
+ printf("Error - Can not open cmos.layout\n");
+ exit(1); /* end of no configuration file is found */
+ }
+ }
+ /* type cast a pointer, so we can us the structure */
+ ct=(struct cmos_option_table*)cmos_table;
+ /* start the table with the type signature */
+ ct->tag = LB_TAG_CMOS_OPTION_TABLE;
+ /* put in the header length */
+ ct->header_length=sizeof(*ct);
+
+ /* Get the entry records */
+ ce=(struct cmos_entries*)(cmos_table+(ct->header_length));
+ cptr = (char*)ce;
+ for(;;){ /* this section loops through the entry records */
+ if(fgets(line,INPUT_LINE_MAX,fp)==NULL)
+ break; /* end if no more input */
+ if(!entry_mode) { /* skip input until the entries key word */
+ if (strstr(line,"entries") != 0) {
+ entry_mode=1;
+ continue;
+ }
+ }
+ else{ /* Test if we are done with entries and starting enumerations */
+ if (strstr(line,"enumerations") != 0){
+ entry_mode=0;
+ enum_mode=1;
+ break;
+ }
+ if (strstr(line, "checksums") != 0) {
+ enum_mode=0;
+ checksum_mode=1;
+ break;
+ }
+ }
+
+ /* skip commented and blank lines */
+ if(line[0]=='#') continue;
+ if(line[strspn(line," ")]=='\n') continue;
+ /* scan in the input data */
+ sscanf(line,"%d %d %c %d %s",
+ &ce->bit,&ce->length,&uc,&ce->config_id,&ce->name[0]);
+ ce->config=(int)uc;
+ /* check bit and length ranges */
+ if(ce->bit>(CMOS_IMAGE_BUFFER_SIZE*8)) {
+ printf("Error - bit is to big in line \n%s\n",line);
+ exit(1);
+ }
+ if((ce->length>(MAX_VALUE_BYTE_LENGTH*8))&&(uc!='r')) {
+ printf("Error - Length is to long in line \n%s\n",line);
+ exit(1);
+ }
+ /* put in the record type */
+ ce->tag=LB_TAG_OPTION;
+ /* calculate and save the record length */
+ len=strlen(ce->name)+1;
+ /* make the record int aligned */
+ if(len%4)
+ len+=(4-(len%4));
+ ce->size=sizeof(struct cmos_entries)-32+len;
+ cptr = (char*)ce;
+ cptr+=ce->size; /* increment to the next table position */
+ ce = (struct cmos_entries*) cptr;
+ }
+
+ /* put the length of the entries into the header section */
+ entries_length=(int)cptr;
+ entries_length-=(int)(cmos_table+ct->header_length);
+
+ /* compute the start of the enumerations section */
+ entry_start=(int)cmos_table;
+ entry_start+=ct->header_length;
+ offset=entry_start+entries_length;
+ c_enums_start=c_enums=(struct cmos_enums*)offset;
+ /* test for overlaps in the entry records */
+ test_for_entry_overlaps(entry_start,offset);
+
+ for(;enum_mode;){ /* loop to build the enumerations section */
+ if(fgets(line,INPUT_LINE_MAX,fp)==NULL)
+ break; /* go till end of input */
+
+ if (strstr(line, "checksums") != 0) {
+ enum_mode=0;
+ checksum_mode=1;
+ break;
+ }
+
+ /* skip commented and blank lines */
+ if(line[0]=='#') continue;
+ if(line[strspn(line," ")]=='\n') continue;
+
+ /* scan in the data */
+ for(ptr=0;(line[ptr]==' ')||(line[ptr]=='\t');ptr++);
+ c_enums->config_id=strtol(&line[ptr],(char**)NULL,10);
+ for(;(line[ptr]!=' ')&&(line[ptr]!='\t');ptr++);
+ for(;(line[ptr]==' ')||(line[ptr]=='\t');ptr++);
+ c_enums->value=strtol(&line[ptr],(char**)NULL,10);
+ for(;(line[ptr]!=' ')&&(line[ptr]!='\t');ptr++);
+ for(;(line[ptr]==' ')||(line[ptr]=='\t');ptr++);
+ for(cnt=0;(line[ptr]!='\n')&&(cnt<31);ptr++,cnt++)
+ c_enums->text[cnt]=line[ptr];
+ c_enums->text[cnt]=0;
+
+ /* make the record int aligned */
+ cnt++;
+ if(cnt%4)
+ cnt+=4-(cnt%4);
+ /* store the record length */
+ c_enums->size=((int)&c_enums->text[cnt])-(int)c_enums;
+ /* store the record type */
+ c_enums->tag=LB_TAG_OPTION_ENUM;
+ /* increment to the next record */
+ c_enums=(struct cmos_enums*)&c_enums->text[cnt];
+ }
+ /* save the enumerations length */
+ enum_length=(int)c_enums-(int)c_enums_start;
+ ct->size=ct->header_length+enum_length+entries_length;
+
+ /* Get the checksum records */
+ cs=(struct cmos_checksum *)(cmos_table+(ct->size));
+ cptr = (char*)cs;
+ for(;checksum_mode;) { /* This section finds the checksums */
+ char *ptr;
+ if(fgets(line, INPUT_LINE_MAX,fp)==NULL)
+ break; /* end if no more input */
+
+ /* skip commented and blank lines */
+ if (line[0]=='#') continue;
+ if (line[strspn(line, " ")]=='\n') continue;
+ if (memcmp(line, "checksum", 8) != 0) continue;
+
+ /* get the information */
+ ptr = line + 8;
+ skip_spaces(line, &ptr);
+ cs->range_start = get_number(line, &ptr, 10);
+
+ skip_spaces(line, &ptr);
+ cs->range_end = get_number(line, &ptr, 10);
+
+ skip_spaces(line, &ptr);
+ cs->location = get_number(line, &ptr, 10);
+
+ /* Make certain there are spaces until the end of the line */
+ skip_spaces(line, &ptr);
+
+ if ((cs->range_start%8) != 0) {
+ printf("Error - range start is not byte aligned in line\n%s\n", line);
+ exit(1);
+ }
+ if (cs->range_start >= (CMOS_IMAGE_BUFFER_SIZE*8)) {
+ printf("Error - range start is to big in line\n%s\n", line);
+ exit(1);
+ }
+ if ((cs->range_end%8) != 7) {
+ printf("Error - range end is not byte aligned in line\n%s\n", line);
+ exit(1);
+ }
+ if ((cs->range_end) >= (CMOS_IMAGE_BUFFER_SIZE*8)) {
+ printf("Error - range end is to long in line\n%s\n", line);
+ exit(1);
+ }
+ if ((cs->location%8) != 0) {
+ printf("Error - location is not byte aligned in line\n%s\n", line);
+ exit(1);
+ }
+ if ((cs->location >= (CMOS_IMAGE_BUFFER_SIZE*8)) ||
+ ((cs->location + 16) > (CMOS_IMAGE_BUFFER_SIZE*8)))
+ {
+ printf("Error - location is to big in line\n%s\n", line);
+ exit(1);
+ }
+ /* And since we are not ready to be fully general purpose yet.. */
+ if ((cs->range_start/8) != LB_CKS_RANGE_START) {
+ printf("Error - Range start(%d) does not match define(%d) in line\n%s\n",
+ cs->range_start/8, LB_CKS_RANGE_START, line);
+ exit(1);
+ }
+ if ((cs->range_end/8) != LB_CKS_RANGE_END) {
+ printf("Error - Range end does not match define in line\n%s\n", line);
+ exit(1);
+ }
+ if ((cs->location/8) != LB_CKS_LOC) {
+ printf("Error - Location does not match define in line\n%s\n", line);
+ exit(1);
+ }
+
+ cs->tag = LB_TAG_OPTION_CHECKSUM;
+ cs->size = sizeof(*cs);
+ cs->type = CHECKSUM_PCBIOS;
+ cptr = (char *)cs;
+ cptr += cs->size;
+ cs = (struct cmos_checksum *)cptr;
+
+ }
+ ct->size += (cptr - (char *)(cmos_table + ct->size));
+ fclose(fp);
+
+ /* test if an alternate file is to be created */
+ if(option) {
+ if((fp=fopen(option,"w"))==NULL){
+ printf("Error - Can not open %s\n",option);
+ exit(1);
+ }
+ }
+ else { /* no, so use the default option_table.c */
+ if((fp=fopen("option_table.c","w"))==NULL){
+ printf("Error - Can not open option_table.c\n");
+ exit(1);
+ }
+ }
+ /* write the header */
+ if(!fwrite("unsigned char option_table[] = {",1,32,fp)) {
+ printf("Error - Could not write image file\n");
+ fclose(fp);
+ exit(1);
+ }
+ /* write the array values */
+ for(i=0;i<(ct->size-1);i++) {
+ if(!(i%10)) fwrite("\n\t",1,2,fp);
+ sprintf(buf,"0x%02x,",cmos_table[i]);
+ fwrite(buf,1,5,fp);
+ }
+ /* write the end */
+ sprintf(buf,"0x%02x",cmos_table[i]);
+ fwrite(buf,1,4,fp);
+ if(!fwrite("};\n",1,3,fp)) {
+ printf("Error - Could not write image file\n");
+ fclose(fp);
+ exit(1);
+ }
+
+ fclose(fp);
+ return(0);
+}
+
+