* Copyright (C) 2009 Rudolf Marek <r.marek@assembler.cz>
*
* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License v2 as published by
- * the Free Software Foundation.
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
char *len_stack[ACPIGEN_LENSTACK_SIZE];
int ltop = 0;
-static int acpigen_write_len_f()
+static int acpigen_write_len_f(void)
{
ASSERT(ltop < (ACPIGEN_LENSTACK_SIZE - 1))
- len_stack[ltop++] = gencurrent;
+ len_stack[ltop++] = gencurrent;
acpigen_emit_byte(0);
acpigen_emit_byte(0);
return 2;
void acpigen_patch_len(int len)
{
ASSERT(len <= ACPIGEN_MAXLEN)
- ASSERT(ltop > 0)
+ ASSERT(ltop > 0)
char *p = len_stack[--ltop];
/* generate store length for 0xfff max */
p[0] = (0x40 | (len & 0xf));
}
-void acpigen_set_current(char *curr) {
- gencurrent = curr;
+void acpigen_set_current(char *curr)
+{
+ gencurrent = curr;
}
-char *acpigen_get_current(void) {
- return gencurrent;
+char *acpigen_get_current(void)
+{
+ return gencurrent;
}
int acpigen_emit_byte(unsigned char b)
return 5;
}
-int acpigen_write_name_byte(char *name, uint8_t val) {
+int acpigen_write_qword(uint64_t data)
+{
+ /* qword op */
+ acpigen_emit_byte(0xe);
+ acpigen_emit_byte(data & 0xff);
+ acpigen_emit_byte((data >> 8) & 0xff);
+ acpigen_emit_byte((data >> 16) & 0xff);
+ acpigen_emit_byte((data >> 24) & 0xff);
+ acpigen_emit_byte((data >> 32) & 0xff);
+ acpigen_emit_byte((data >> 40) & 0xff);
+ acpigen_emit_byte((data >> 48) & 0xff);
+ acpigen_emit_byte((data >> 56) & 0xff);
+ return 9;
+}
+
+int acpigen_write_name_byte(const char *name, uint8_t val)
+{
int len;
len = acpigen_write_name(name);
len += acpigen_write_byte(val);
return len;
}
-int acpigen_write_name_dword(char *name, uint32_t val) {
+int acpigen_write_name_dword(const char *name, uint32_t val)
+{
int len;
len = acpigen_write_name(name);
len += acpigen_write_dword(val);
return len;
}
-int acpigen_emit_stream(char *data, int size) {
+int acpigen_write_name_qword(const char *name, uint64_t val)
+{
+ int len;
+ len = acpigen_write_name(name);
+ len += acpigen_write_qword(val);
+ return len;
+}
+
+int acpigen_emit_stream(const char *data, int size)
+{
int i;
for (i = 0; i < size; i++) {
acpigen_emit_byte(data[i]);
return size;
}
-int acpigen_write_name(char *name)
+/* The NameString are bit tricky, each element can be 4 chars, if
+ less its padded with underscore. Check 18.2.2 and 18.4
+ and 5.3 of ACPI specs 3.0 for details
+*/
+
+static int acpigen_emit_simple_namestring(const char *name) {
+ int i, len = 0;
+ char ud[] = "____";
+ for (i = 0; i < 4; i++) {
+ if ((name[i] == '\0') || (name[i] == '.')) {
+ len += acpigen_emit_stream(ud, 4 - i);
+ break;
+ } else {
+ len += acpigen_emit_byte(name[i]);
+ }
+ }
+ return len;
+}
+
+static int acpigen_emit_double_namestring(const char *name, int dotpos) {
+ int len = 0;
+ /* mark dual name prefix */
+ len += acpigen_emit_byte(0x2e);
+ len += acpigen_emit_simple_namestring(name);
+ len += acpigen_emit_simple_namestring(&name[dotpos + 1]);
+ return len;
+}
+
+static int acpigen_emit_multi_namestring(const char *name) {
+ int len = 0, count = 0;
+ unsigned char *pathlen;
+ /* mark multi name prefix */
+ len += acpigen_emit_byte(0x2f);
+ len += acpigen_emit_byte(0x0);
+ pathlen = ((unsigned char *) acpigen_get_current()) - 1;
+
+ while (name[0] != '\0') {
+ len += acpigen_emit_simple_namestring(name);
+ /* find end or next entity */
+ while ((name[0] != '.') && (name[0] != '\0'))
+ name++;
+ /* forward to next */
+ if (name[0] == '.')
+ name++;
+ count++;
+ }
+
+ pathlen[0] = count;
+ return len;
+}
+
+
+int acpigen_emit_namestring(const char *namepath) {
+ int dotcount = 0, i;
+ int dotpos = 0;
+ int len = 0;
+
+ /* we can start with a \ */
+ if (namepath[0] == '\\') {
+ len += acpigen_emit_byte('\\');
+ namepath++;
+ }
+
+ /* and there can be any number of ^ */
+ while (namepath[0] == '^') {
+ len += acpigen_emit_byte('^');
+ namepath++;
+ }
+
+ ASSERT(namepath[0] != '\0');
+
+ i = 0;
+ while (namepath[i] != '\0') {
+ if (namepath[i] == '.') {
+ dotcount++;
+ dotpos = i;
+ }
+ i++;
+ }
+
+ if (dotcount == 0) {
+ len += acpigen_emit_simple_namestring(namepath);
+ } else if (dotcount == 1) {
+ len += acpigen_emit_double_namestring(namepath, dotpos);
+ } else {
+ len += acpigen_emit_multi_namestring(namepath);
+ }
+ return len;
+}
+
+int acpigen_write_name(const char *name)
{
- int len = strlen(name);
+ int len;
/* name op */
- acpigen_emit_byte(0x8);
- acpigen_emit_stream(name, len);
- return len + 1;
+ len = acpigen_emit_byte(0x8);
+ return len + acpigen_emit_namestring(name);
}
-int acpigen_write_scope(char *name)
+int acpigen_write_scope(const char *name)
{
int len;
/* scope op */
- acpigen_emit_byte(0x10);
- len = acpigen_write_len_f();
- return len + acpigen_emit_stream(name, strlen(name)) + 1;
+ len = acpigen_emit_byte(0x10);
+ len += acpigen_write_len_f();
+ return len + acpigen_emit_namestring(name);
}
int acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len)
{
*/
char pscope[16];
- int len;
+ int len;
/* processor op */
acpigen_emit_byte(0x5b);
acpigen_emit_byte(0x83);
len = acpigen_write_len_f();
- sprintf(pscope, "\\._PR_CPU%x", (unsigned int) cpuindex);
- len += acpigen_emit_stream(pscope, strlen(pscope));
+ sprintf(pscope, "\\_PR.CPU%x", (unsigned int) cpuindex);
+ len += acpigen_emit_namestring(pscope);
acpigen_emit_byte(cpuindex);
acpigen_emit_byte(pblock_addr & 0xff);
acpigen_emit_byte((pblock_addr >> 8) & 0xff);
acpigen_emit_byte((pblock_addr >> 16) & 0xff);
acpigen_emit_byte((pblock_addr >> 24) & 0xff);
acpigen_emit_byte(pblock_len);
- return 6 + 2 + len;
+ return 6 + 2 + len;
}
int acpigen_write_empty_PCT(void)
/* method op */
acpigen_emit_byte(0x14);
len = acpigen_write_len_f();
- len += acpigen_emit_stream("_PPC", 4);
+ len += acpigen_emit_namestring("_PPC");
/* no fnarg */
acpigen_emit_byte(0x00);
/* return */
acpigen_emit_byte(0xa4);
/* arg */
len += acpigen_write_byte(nr);
+ /* add all single bytes */
+ len += 3;
acpigen_patch_len(len - 1);
- return len + 3;
+ return len;
}
-int acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat,
- u32 control, u32 status)
+int acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat,
+ u32 busmLat, u32 control, u32 status)
{
int len;
len = acpigen_write_package(6);
acpigen_patch_len(len - 1);
return len;
}
+
+int acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype)
+{
+ int len, lenh, lenp;
+ lenh = acpigen_write_name("_PSD");
+ lenp = acpigen_write_package(1);
+ len = acpigen_write_package(5);
+ len += acpigen_write_byte(5); // 5 values
+ len += acpigen_write_byte(0); // revision 0
+ len += acpigen_write_dword(domain);
+ len += acpigen_write_dword(coordtype);
+ len += acpigen_write_dword(numprocs);
+ acpigen_patch_len(len - 1);
+ len += lenp;
+ acpigen_patch_len(len - 1);
+ return len + lenh;
+}
projects / coreboot.git / blobdiff