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(Phil) Slight timing adjustments.

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@577 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Philip Edelbrock committed 1999-09-24 05:38:30 +00:00
1 parent a69c029ece
commit 5decf6a577
1 file changed
+10 -14
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kernel/busses/i2c-voodoo3.c
+10 -14
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@@ -165,11 +165,13 @@ void Voodoo3_I2CStart(void)
{
clkon(); /* in theory, clk is already on */
out();
out();
out();
out();
dat(0);
out();
clkoff();
out();
clkon();
}
void Voodoo3_I2CStop(void)
@@ -182,6 +184,7 @@ void Voodoo3_I2CStop(void)
out();
clkoff();
out();
out();
clkon();
out();
}
@@ -190,14 +193,13 @@ int Voodoo3_I2CAck(void)
{
int ack;
dat(1); /* put data line in tristate/hi */
clkon();
out();
clkon();
ack=rdat();
out();
clkoff();
out();
return ack;
}
int Voodoo3_I2CReadByte(void)
@@ -205,16 +207,13 @@ int Voodoo3_I2CReadByte(void)
int i,temp;
unsigned char data=0;
clkoff();
out();
for (i=7; i>=0; i--) {
out();
out();
clkon();
data|=(rdat()<<i);
out();
out();
clkoff();
out();
}
temp=Voodoo3_I2CAck();
#ifdef DEBUG
@@ -231,14 +230,12 @@ int Voodoo3_I2CSendByte(unsigned char data)
{
int i,temp;
clkoff();
out();
for (i=7; i>=0; i--) {
dat(temp=data&(1<<i));
out();
clkon();
out();
dat(temp);
// dat(temp);
out();
clkoff();
out();
@@ -293,7 +290,7 @@ int Voodoo3_I2CRead_byte_data(int addr,int command)
goto ENDREAD2; }
if (Voodoo3_I2CSendByte(command)) {
#ifdef DEBUG
printk("i2c-voodoo3: No Ack on addr WriteByte to addr 0x%X\n",addr);
printk("i2c-voodoo3: No Ack on cmd WriteByte to addr 0x%X\n",addr);
#endif
this_dat=-1;
goto ENDREAD2; }
@@ -403,7 +400,7 @@ int result=0;
goto ENDWRITE3; }
if (Voodoo3_I2CSendByte((data &0x0FF00)>>8)) {
#ifdef DEBUG
printk("i2c-voodoo3: No Ack on data WriteByte to addr 0x%X\n",addr);
printk("i2c-voodoo3: No Ack on data byte 2 WriteByte to addr 0x%X\n",addr);
#endif
result=-1; }
ENDWRITE3: Voodoo3_I2CStop();
@@ -429,7 +426,6 @@ void config_v3(struct pci_dev *dev, int num)
cadr&=PCI_BASE_ADDRESS_MEM_MASK;
mem=ioremap(cadr, 0x1000);
/* Enable TV out mode, Voodoo3_I2C bus, etc. */
*((unsigned int *)(mem+0x70))=0x8160;
*((unsigned int *)(mem+0x78))=0xcf980020;
printk("i2c-voodoo3: Using Banshee/Voodoo3 at 0x%p\n",mem);