#include <stdlib.h>
#include <sys/io.h>
-/* well, they really thought this through, eh? Family is 8 bits!!!! */
-char *familyid[] = {
- [0xf1] = "pc8374 (winbond, was NS)"
+/* Well, they really thought this through, eh? Family is 8 bits! */
+static const char *familyid[] = {
+ [0xf1] = "PC8374 (Winbond/NatSemi)"
};
-/* eventually, if you care, break this out into a file. For now, I don't know
- * if we need this.
- */
-
-unsigned char regval(unsigned short port, unsigned char reg) {
+unsigned char regval(unsigned short port, unsigned char reg)
+{
outb(reg, port);
return inb(port + 1);
}
-void regwrite(unsigned short port, unsigned char reg, unsigned char val) {
+void regwrite(unsigned short port, unsigned char reg, unsigned char val)
+{
outb(reg, port);
outb(val, port + 1);
}
-void
-dump_ns8374(unsigned short port) {
+void dump_ns8374(unsigned short port)
+{
printf("Enables: 21=%02x, 22=%02x, 23=%02x, 24=%02x, 26=%02x\n",
- regval(port, 0x21), regval(port, 0x22), regval(port, 0x23),
- regval(port, 0x24), regval(port, 0x26));
+ regval(port, 0x21), regval(port, 0x22), regval(port, 0x23),
+ regval(port, 0x24), regval(port, 0x26));
printf("SMBUS at %02x\n", regval(port, 0x2a));
- /* check COM1. This is all we care about at present. */
- printf("COM 1 is Globally %s\n", regval(port, 0x26) & 8 ? "disabled" : "enabled");
- /* select com1 */
+
+ /* Check COM1. This is all we care about at present. */
+ printf("COM 1 is globally %s\n",
+ regval(port, 0x26) & 8 ? "disabled" : "enabled");
+
+ /* Select COM1. */
regwrite(port, 0x07, 0x03);
- printf("COM 1 is locally %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
- printf("COM1 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
- regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
- regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
- /* select gpio */
+ printf("COM 1 is locally %s\n",
+ regval(port, 0x30) & 1 ? "enabled" : "disabled");
+ printf
+ ("COM1 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
+ regval(port, 0x60), regval(port, 0x61), regval(port, 0x70),
+ regval(port, 0x71), regval(port, 0x74), regval(port, 0x75),
+ regval(port, 0xf0));
+
+ /* Select GPIO. */
regwrite(port, 0x07, 0x07);
printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
- printf("GPIO 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
- regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
- regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
-
+ printf
+ ("GPIO 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
+ regval(port, 0x60), regval(port, 0x61), regval(port, 0x70),
+ regval(port, 0x71), regval(port, 0x74), regval(port, 0x75),
+ regval(port, 0xf0));
}
-void
-dump_fintek(unsigned short port, unsigned int did)
+void dump_fintek(unsigned short port, unsigned int did)
{
- switch(did) {
+ switch (did) {
case 0x0604:
- printf ("Fintek F71805\n");
+ printf("Fintek F71805\n");
break;
case 0x4103:
- printf ("Fintek F71872\n");
+ printf("Fintek F71872\n");
break;
default:
- printf ("Unknown Fintek SuperI/O: did=0x%04x\n", did);
+ printf("Unknown Fintek Super I/O: did=0x%04x\n", did);
return;
}
- printf("Flash write is %s.\n", regval(port, 0x28) & 0x80 ? "enabled" : "disabled");
+ printf("Flash write is %s.\n",
+ regval(port, 0x28) & 0x80 ? "enabled" : "disabled");
printf("Flash control is 0x%04x.\n", regval(port, 0x28));
printf("27=%02x\n", regval(port, 0x27));
printf("29=%02x\n", regval(port, 0x29));
printf("2a=%02x\n", regval(port, 0x2a));
printf("2b=%02x\n", regval(port, 0x2b));
- /* select UART 1 */
+ /* Select UART 1. */
regwrite(port, 0x07, 0x01);
- printf("UART1 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
- printf("UART1 base=%02x%02x, irq=%02x, mode=%s\n",
- regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f,
- regval(port, 0xf0) & 0x10 ? "RS485":"RS232");
+ printf("UART1 is %s\n",
+ regval(port, 0x30) & 1 ? "enabled" : "disabled");
+ printf("UART1 base=%02x%02x, irq=%02x, mode=%s\n", regval(port, 0x60),
+ regval(port, 0x61), regval(port, 0x70) & 0x0f,
+ regval(port, 0xf0) & 0x10 ? "RS485" : "RS232");
- /* select UART 2 */
+ /* Select UART 2. */
regwrite(port, 0x07, 0x02);
- printf("UART2 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
- printf("UART2 base=%02x%02x, irq=%02x, mode=%s\n",
- regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f,
- regval(port, 0xf0) & 0x10 ? "RS485":"RS232");
+ printf("UART2 is %s\n",
+ regval(port, 0x30) & 1 ? "enabled" : "disabled");
+ printf("UART2 base=%02x%02x, irq=%02x, mode=%s\n", regval(port, 0x60),
+ regval(port, 0x61), regval(port, 0x70) & 0x0f,
+ regval(port, 0xf0) & 0x10 ? "RS485" : "RS232");
- /* select Parport */
+ /* Select parallel port. */
regwrite(port, 0x07, 0x03);
- printf("PARPORT is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
- printf("PARPORT base=%02x%02x, irq=%02x\n",
- regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f);
+ printf("PARPORT is %s\n",
+ regval(port, 0x30) & 1 ? "enabled" : "disabled");
+ printf("PARPORT base=%02x%02x, irq=%02x\n", regval(port, 0x60),
+ regval(port, 0x61), regval(port, 0x70) & 0x0f);
- /* select hw monitor */
+ /* Select HW monitor. */
regwrite(port, 0x07, 0x04);
- printf("HW monitor is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
- printf("HW monitor base=%02x%02x, irq=%02x\n",
- regval(port, 0x60), regval(port, 0x61), regval(port, 0x70) & 0x0f);
+ printf("HW monitor is %s\n",
+ regval(port, 0x30) & 1 ? "enabled" : "disabled");
+ printf("HW monitor base=%02x%02x, irq=%02x\n", regval(port, 0x60),
+ regval(port, 0x61), regval(port, 0x70) & 0x0f);
- /* select gpio */
+ /* Select GPIO. */
regwrite(port, 0x07, 0x05);
printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
- printf("GPIO 70=%02x, e0=%02x, e1=%02x, e2=%02x, e3=%02x, e4=%02x, e5=%02x\n",
- regval(port, 0x70), regval(port, 0xe0), regval(port, 0xe1), regval(port, 0xe2),
- regval(port, 0xe3), regval(port, 0xe4), regval(port, 0xe5));
- printf("GPIO e6=%02x, e7=%02x, e8=%02x, e9=%02x, f0=%02x, f1=%02x, f3=%02x, f4=%02x\n",
- regval(port, 0xe6), regval(port, 0xe7), regval(port, 0xe8), regval(port, 0xe9),
- regval(port, 0xf0), regval(port, 0xf1), regval(port, 0xf3), regval(port, 0xf4));
- printf("GPIO f5=%02x, f6=%02x, f7=%02x, f8=%02x\n",
- regval(port, 0xf5), regval(port, 0xf6), regval(port, 0xf7), regval(port, 0xf8));
-
-
+ printf
+ ("GPIO 70=%02x, e0=%02x, e1=%02x, e2=%02x, e3=%02x, e4=%02x, e5=%02x\n",
+ regval(port, 0x70), regval(port, 0xe0), regval(port, 0xe1),
+ regval(port, 0xe2), regval(port, 0xe3), regval(port, 0xe4),
+ regval(port, 0xe5));
+ printf
+ ("GPIO e6=%02x, e7=%02x, e8=%02x, e9=%02x, f0=%02x, f1=%02x, f3=%02x, f4=%02x\n",
+ regval(port, 0xe6), regval(port, 0xe7), regval(port, 0xe8),
+ regval(port, 0xe9), regval(port, 0xf0), regval(port, 0xf1),
+ regval(port, 0xf3), regval(port, 0xf4));
+ printf("GPIO f5=%02x, f6=%02x, f7=%02x, f8=%02x\n", regval(port, 0xf5),
+ regval(port, 0xf6), regval(port, 0xf7), regval(port, 0xf8));
}
-/* End Of Table */
-#define EOT -1
-/* NO LDN needed */
-#define NOLDN -2
-/* Not Available */
-#define NANA -3
-/* Maximum Name Length */
-#define MAXNAMELEN 20
-/* Biggest LDN */
-#define MAXLDN 0xa
-/* biggestLDN + 0 + NOLDN + EOT */
-#define LDNSIZE MAXLDN + 3
-/* MAXimum NUMber of Indexes */
-#define MAXNUMIDX 70
-#define IDXSIZE MAXNUMIDX + 1
+#define EOT -1 /* End Of Table */
+#define NOLDN -2 /* NO LDN needed */
+#define NANA -3 /* Not Available */
+#define MAXNAMELEN 20 /* Maximum Name Length */
+#define MAXLDN 0xa /* Biggest LDN */
+#define LDNSIZE (MAXLDN + 3) /* Biggest LDN + 0 + NOLDN + EOT */
+#define MAXNUMIDX 70 /* Maximum number of indexes */
+#define IDXSIZE (MAXNUMIDX + 1)
const static struct ite_registers {
- /* yes, superio_id should be unsigned, but EOT has to be negative */
+ /* Yes, superio_id should be unsigned, but EOT has to be negative. */
signed short superio_id;
- char name[MAXNAMELEN];
+ const char name[MAXNAMELEN];
struct ite_ldnidx {
signed short ldn;
signed short idx[IDXSIZE];
{EOT}
};
-void
-dump_ite(unsigned short port, unsigned short id)
+void dump_ite(unsigned short port, unsigned short id)
{
int i, j, k;
signed short *idx;
printf ("ITE ");
-
/* ID Mapping Table
unknown -> IT8711 (no datasheet)
unknown -> IT8722 (no datasheet)
0x8716 -> IT8716
0x8718 -> IT8718
0x8726 -> IT8726 (datasheet wrongly says 0x8716)
- */
- switch(id) {
+ */
+ switch (id) {
case 0x8702:
case 0x8705:
case 0x8708:
case 0x8712:
case 0x8716:
case 0x8718:
- for (i=0;; i++) {
+ for (i = 0;; i++) {
if (ite_reg_table[i].superio_id == EOT)
break;
if ((unsigned short)ite_reg_table[i].superio_id != id)
continue;
- printf ("%s\n", ite_reg_table[i].name);
- for (j=0;; j++) {
+ printf("%s\n", ite_reg_table[i].name);
+ for (j = 0;; j++) {
if (ite_reg_table[i].ldn[j].ldn == EOT)
break;
if (ite_reg_table[i].ldn[j].ldn != NOLDN) {
- printf("switching to LDN 0x%01x\n",
+ printf("Switching to LDN 0x%01x\n",
ite_reg_table[i].ldn[j].ldn);
regwrite(port, 0x07,
- ite_reg_table[i].ldn[j].ldn);
+ ite_reg_table[i].ldn[j].ldn);
}
idx = ite_reg_table[i].ldn[j].idx;
printf("idx ");
- for (k=0;; k++) {
+ for (k = 0;; k++) {
if (idx[k] == EOT)
break;
printf("%02x ", idx[k]);
}
printf("\nval ");
- for (k=0;; k++) {
+ for (k = 0;; k++) {
if (idx[k] == EOT)
break;
printf("%02x ", regval(port, idx[k]));
}
printf("\ndef ");
idx = ite_reg_table[i].ldn[j].def;
- for (k=0;; k++) {
+ for (k = 0;; k++) {
if (idx[k] == EOT)
break;
if (idx[k] == NANA)
}
printf("\n");
}
-
}
break;
default:
- printf ("unknown ITE chip, id=%04x\n", id);
- for (i=0x20; i<=0x24; i++)
+ printf("Unknown ITE chip, id=%04x\n", id);
+ for (i = 0x20; i <= 0x24; i++)
printf("index %02x=%02x\n", i, regval(port, i));
break;
}
}
-void
-probe_idregs_simple(unsigned short port){
+void probe_idregs_simple(unsigned short port)
+{
unsigned char id;
outb(0x20, port);
- if (inb(port) != 0x20) {
- if (inb(port) == 0xff )
- printf ("No SuperI/O chip found at 0x%04x\n", port);
+ if (inb(port) != 0x20) {
+ if (inb(port) == 0xff)
+ printf("No SuperI/O chip found at 0x%04x\n", port);
else
- printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n",
- port, inb(port), inb(port + 1));
+ printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", port, inb(port), inb(port + 1));
return;
}
id = inb(port + 1);
if (id == 0xff)
return;
- if (familyid[id])
+ if (familyid[id])
printf("%s\n", familyid[id]);
else
printf("<unknown>\n");
- switch(id) {
- case 0xf1:
- dump_ns8374(port);
- break;
- default:
- printf("no dump for 0x%02x\n", id);
- break;
+ switch (id) {
+ case 0xf1:
+ dump_ns8374(port);
+ break;
+ default:
+ printf("no dump for 0x%02x\n", id);
+ break;
}
}
-
-void
-probe_idregs_fintek(unsigned short port){
+void probe_idregs_fintek(unsigned short port)
+{
unsigned int vid, did, success = 0;
/* Enable configuration sequence (Fintek uses this for example)
- Older ITE chips have the same enable sequence */
+ * Older ITE chips have the same enable sequence.
+ */
outb(0x87, port);
outb(0x87, port);
outb(0x20, port);
- if (inb(port) != 0x20) {
- if (inb(port) == 0xff )
- printf ("No SuperIO chip found at 0x%04x\n", port);
+ if (inb(port) != 0x20) {
+ if (inb(port) == 0xff)
+ printf("No SuperIO chip found at 0x%04x\n", port);
else
- printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n",
- port, inb(port), inb(port + 1));
+ printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", port, inb(port), inb(port + 1));
return;
}
did = inb(port + 1);
-
- did |= (regval(port, 0x21)<<8);
+ did |= (regval(port, 0x21) << 8);
vid = regval(port, 0x23);
- vid |= (regval(port, 0x24)<<8);
+ vid |= (regval(port, 0x24) << 8);
- printf("SuperIO found at 0x%02x: vid=0x%04x/did=0x%04x\n", port, vid, did);
+ printf("Super I/O found at 0x%02x: vid=0x%04x/did=0x%04x\n",
+ port, vid, did);
if (vid == 0xff || vid == 0xffff)
return;
/* printf("%s\n", familyid[id]); */
- switch(did) {
- case 0x0887: /* pseudoreversed for ITE8708 */
- case 0x1087: /* pseudoreversed for ITE8710 */
- success = 1;
- dump_ite(port, ((did & 0xff) << 8) | ((did & 0xff00) >> 8));
- /* disable configuration */
- regwrite(port, 0x02, 0x02);
- break;
- default:
- break;
+ switch (did) {
+ case 0x0887: /* Pseudoreversed for ITE8708 */
+ case 0x1087: /* Pseudoreversed for ITE8710 */
+ success = 1;
+ dump_ite(port, ((did & 0xff) << 8) | ((did & 0xff00) >> 8));
+ regwrite(port, 0x02, 0x02); /* Exit MB PnP mode. */
+ break;
+ default:
+ break;
}
- switch(vid) {
- case 0x3419:
- success = 1;
- dump_fintek(port, did);
- break;
- default:
- break;
+
+ switch (vid) {
+ case 0x3419:
+ success = 1;
+ dump_fintek(port, did);
+ break;
+ default:
+ break;
}
+
if (!success)
- printf("no dump for vid 0x%04x, did 0x%04x\n", vid, did);
+ printf("No dump for vid 0x%04x, did 0x%04x\n", vid, did);
- /* disable configuration (for Fintek, doesn't hurt ITE) */
+ /* Exit MB PnP mode (for Fintek, doesn't hurt ITE). */
outb(0xaa, port);
}
-void
-probe_idregs_ite(unsigned short port){
+void probe_idregs_ite(unsigned short port)
+{
unsigned int id, chipver;
/* Enable configuration sequence (ITE uses this for newer IT87[012]x)
- IT871[01] uses 0x87, 0x87 -> fintek detection should handle it
- IT8708 uses 0x87, 0x87 -> fintek detection should handle it
- IT8761 uses 0x87, 0x61, 0x55, 0x55/0xaa
- IT86xx series uses different ports
- IT8661 uses 0x86, 0x61, 0x55/0xaa, 0x55/0xaa and 32 more writes
- IT8673 uses 0x86, 0x80, 0x55/0xaa, 0x55/0xaa and 32 more writes */
+ * IT871[01] uses 0x87, 0x87 -> fintek detection should handle it
+ * IT8708 uses 0x87, 0x87 -> fintek detection should handle it
+ * IT8761 uses 0x87, 0x61, 0x55, 0x55/0xaa
+ * IT86xx series uses different ports
+ * IT8661 uses 0x86, 0x61, 0x55/0xaa, 0x55/0xaa and 32 more writes
+ * IT8673 uses 0x86, 0x80, 0x55/0xaa, 0x55/0xaa and 32 more writes
+ */
outb(0x87, port);
outb(0x01, port);
outb(0x55, port);
else
outb(0xAA, port);
- /* Read Chip ID Byte 1 */
+ /* Read Chip ID Byte 1. */
id = regval(port, 0x20);
- if (id != 0x87) {
- if (inb(port) == 0xff )
- printf ("No SuperIO chip found at 0x%04x\n", port);
+ if (id != 0x87) {
+ if (inb(port) == 0xff)
+ printf("No Super-I/O chip found at 0x%04x\n", port);
else
- printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n",
- port, inb(port), inb(port + 1));
+ printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n", port, inb(port), inb(port + 1));
return;
}
id <<= 8;
- /* Read Chip ID Byte 2 */
+ /* Read Chip ID Byte 2. */
id |= regval(port, 0x21);
- /* Read Chip Version, only bit 3..0 for all IT87xx */
+ /* Read chip version, only bits 3..0 for all IT87xx. */
chipver = regval(port, 0x22) & 0x0f;
/* ID Mapping Table
- unknown -> IT8711 (no datasheet)
- unknown -> IT8722 (no datasheet)
- 0x8702 -> IT8702
- 0x8705 -> IT8700 or IT8705
- 0x8708 -> IT8708
- 0x8710 -> IT8710
- 0x8712 -> IT8712
- 0x8716 -> IT8716
- 0x8718 -> IT8718
- 0x8726 -> IT8726 (datasheet wrongly says 0x8716)
- */
- printf("SuperI/O found at 0x%02x: id=0x%04x, chipver=0x%01x\n",
+ * unknown -> IT8711 (no datasheet)
+ * unknown -> IT8722 (no datasheet)
+ * 0x8702 -> IT8702
+ * 0x8705 -> IT8700 or IT8705
+ * 0x8708 -> IT8708
+ * 0x8710 -> IT8710
+ * 0x8712 -> IT8712
+ * 0x8716 -> IT8716
+ * 0x8718 -> IT8718
+ * 0x8726 -> IT8726 (datasheet wrongly says 0x8716)
+ */
+ printf("Super I/O found at 0x%02x: id=0x%04x, chipver=0x%01x\n",
port, id, chipver);
- switch(id) {
- case 0x8702:
- case 0x8705:
- case 0x8708:
- case 0x8712:
- case 0x8716:
- case 0x8718:
- case 0x8726:
- dump_ite(port, id);
- break;
- default:
- printf("no dump for id 0x%04x\n", id);
- break;
+ switch (id) {
+ case 0x8702:
+ case 0x8705:
+ case 0x8708:
+ case 0x8712:
+ case 0x8716:
+ case 0x8718:
+ case 0x8726:
+ dump_ite(port, id);
+ break;
+ default:
+ printf("No dump for id 0x%04x\n", id);
+ break;
}
- /* disable configuration */
- regwrite(port, 0x02, 0x02);
+ regwrite(port, 0x02, 0x02); /* Exit MB PnP mode. */
}
-void
-probe_superio(unsigned short port) {
+void probe_superio(unsigned short port)
+{
probe_idregs_simple(port);
probe_idregs_fintek(port);
probe_idregs_ite(port);
}
-int
-main(int argc, char *argv[])
+int main(int argc, char *argv[])
{
if (iopl(3) < 0) {
perror("iopl");
exit(1);
}
- /* try the 2e */
- probe_superio(0x2e);
- /* now try the 4e */
- probe_superio(0x4e);
+ probe_superio(0x2e); /* Try 0x2e. */
+ probe_superio(0x4e); /* Try 0x4e. */
return 0;
}
projects / coreboot.git / commitdiff