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Diffstat (limited to 'src/southbridge/nvidia/ck804/ck804_smbus.h')
-rw-r--r--src/southbridge/nvidia/ck804/ck804_smbus.h150
1 files changed, 75 insertions, 75 deletions
diff --git a/src/southbridge/nvidia/ck804/ck804_smbus.h b/src/southbridge/nvidia/ck804/ck804_smbus.h
index 88843585aa..038b602455 100644
--- a/src/southbridge/nvidia/ck804/ck804_smbus.h
+++ b/src/southbridge/nvidia/ck804/ck804_smbus.h
@@ -11,7 +11,7 @@
#define SMBHSTDAT0 0x4
#define SMBHSTDAT1 0x5
-/* Between 1-10 seconds, We should never timeout normally
+/* Between 1-10 seconds, We should never timeout normally
* Longer than this is just painful when a timeout condition occurs.
*/
#define SMBUS_TIMEOUT (100*1000*10)
@@ -45,7 +45,7 @@ static int smbus_wait_until_done(unsigned smbus_io_base)
do {
unsigned char val;
smbus_delay();
-
+
val = inb(smbus_io_base + SMBHSTSTAT);
if ( (val & 0xff) != 0) {
return 0;
@@ -55,87 +55,87 @@ static int smbus_wait_until_done(unsigned smbus_io_base)
}
static int do_smbus_recv_byte(unsigned smbus_io_base, unsigned device)
{
- unsigned char global_status_register;
- unsigned char byte;
-#if 0
+ unsigned char global_status_register;
+ unsigned char byte;
+#if 0
// Don't need, when you write to PRTCL, the status will be cleared automatically
- if (smbus_wait_until_ready(smbus_io_base) < 0) {
- return -2;
- }
+ if (smbus_wait_until_ready(smbus_io_base) < 0) {
+ return -2;
+ }
#endif
- /* set the device I'm talking too */
- outb(((device & 0x7f) << 1)|1 , smbus_io_base + SMBXMITADD);
- smbus_delay();
- /* set the command/address... */
- outb(0, smbus_io_base + SMBHSTCMD);
- smbus_delay();
- /* byte data recv */
- outb(0x05, smbus_io_base + SMBHSTPRTCL);
- smbus_delay();
-
- /* poll for transaction completion */
- if (smbus_wait_until_done(smbus_io_base) < 0) {
- return -3;
- }
-
- global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */
-
- /* read results of transaction */
- byte = inb(smbus_io_base + SMBHSTDAT0);
-
- if (global_status_register != 0x80) { // lose check, otherwise it should be 0
- return -1;
- }
- return byte;
+ /* set the device I'm talking too */
+ outb(((device & 0x7f) << 1)|1 , smbus_io_base + SMBXMITADD);
+ smbus_delay();
+ /* set the command/address... */
+ outb(0, smbus_io_base + SMBHSTCMD);
+ smbus_delay();
+ /* byte data recv */
+ outb(0x05, smbus_io_base + SMBHSTPRTCL);
+ smbus_delay();
+
+ /* poll for transaction completion */
+ if (smbus_wait_until_done(smbus_io_base) < 0) {
+ return -3;
+ }
+
+ global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */
+
+ /* read results of transaction */
+ byte = inb(smbus_io_base + SMBHSTDAT0);
+
+ if (global_status_register != 0x80) { // lose check, otherwise it should be 0
+ return -1;
+ }
+ return byte;
}
static int do_smbus_send_byte(unsigned smbus_io_base, unsigned device, unsigned char val)
{
- unsigned global_status_register;
+ unsigned global_status_register;
#if 0
// Don't need, when you write to PRTCL, the status will be cleared automatically
- if (smbus_wait_until_ready(smbus_io_base) < 0) {
- return -2;
- }
+ if (smbus_wait_until_ready(smbus_io_base) < 0) {
+ return -2;
+ }
#endif
- outb(val, smbus_io_base + SMBHSTDAT0);
- smbus_delay();
+ outb(val, smbus_io_base + SMBHSTDAT0);
+ smbus_delay();
- /* set the device I'm talking too */
- outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBXMITADD);
- smbus_delay();
+ /* set the device I'm talking too */
+ outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBXMITADD);
+ smbus_delay();
- outb(0, smbus_io_base + SMBHSTCMD);
- smbus_delay();
+ outb(0, smbus_io_base + SMBHSTCMD);
+ smbus_delay();
- /* set up for a byte data write */
- outb(0x04, smbus_io_base + SMBHSTPRTCL);
- smbus_delay();
+ /* set up for a byte data write */
+ outb(0x04, smbus_io_base + SMBHSTPRTCL);
+ smbus_delay();
- /* poll for transaction completion */
- if (smbus_wait_until_done(smbus_io_base) < 0) {
- return -3;
- }
- global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */;
+ /* poll for transaction completion */
+ if (smbus_wait_until_done(smbus_io_base) < 0) {
+ return -3;
+ }
+ global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */;
- if (global_status_register != 0x80) {
- return -1;
- }
- return 0;
+ if (global_status_register != 0x80) {
+ return -1;
+ }
+ return 0;
}
static int do_smbus_read_byte(unsigned smbus_io_base, unsigned device, unsigned address)
{
unsigned char global_status_register;
unsigned char byte;
-#if 0
+#if 0
// Don't need, when you write to PRTCL, the status will be cleared automatically
if (smbus_wait_until_ready(smbus_io_base) < 0) {
return -2;
}
#endif
-
+
/* set the device I'm talking too */
outb(((device & 0x7f) << 1)|1 , smbus_io_base + SMBXMITADD);
smbus_delay();
@@ -165,38 +165,38 @@ static int do_smbus_read_byte(unsigned smbus_io_base, unsigned device, unsigned
static int do_smbus_write_byte(unsigned smbus_io_base, unsigned device, unsigned address, unsigned char val)
{
- unsigned global_status_register;
+ unsigned global_status_register;
#if 0
// Don't need, when you write to PRTCL, the status will be cleared automatically
- if (smbus_wait_until_ready(smbus_io_base) < 0) {
- return -2;
- }
+ if (smbus_wait_until_ready(smbus_io_base) < 0) {
+ return -2;
+ }
#endif
outb(val, smbus_io_base + SMBHSTDAT0);
smbus_delay();
- /* set the device I'm talking too */
- outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBXMITADD);
+ /* set the device I'm talking too */
+ outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBXMITADD);
smbus_delay();
- outb(address & 0xff, smbus_io_base + SMBHSTCMD);
+ outb(address & 0xff, smbus_io_base + SMBHSTCMD);
smbus_delay();
- /* set up for a byte data write */
- outb(0x06, smbus_io_base + SMBHSTPRTCL);
+ /* set up for a byte data write */
+ outb(0x06, smbus_io_base + SMBHSTPRTCL);
smbus_delay();
- /* poll for transaction completion */
- if (smbus_wait_until_done(smbus_io_base) < 0) {
- return -3;
- }
- global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */;
+ /* poll for transaction completion */
+ if (smbus_wait_until_done(smbus_io_base) < 0) {
+ return -3;
+ }
+ global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */;
- if (global_status_register != 0x80) {
- return -1;
- }
- return 0;
+ if (global_status_register != 0x80) {
+ return -1;
+ }
+ return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 08:18:23 +0000