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Attempt to use nvclock code for reading GPU temperature, since running

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nvidia-settings couple of times for a second is highly inefficient.
This commit is contained in:
gryf
2012-05-30 11:01:21 +02:00
parent d256a01f46
commit 28d2a7fd2e
54 changed files with 9003 additions and 5 deletions
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81
nvclock/w83781d.c Normal file
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/* NVClock Winbond W83781D hardware monitoring
*/
#include <unistd.h>
#include <stdarg.h>
#include <string.h>
#include "i2c.h"
#include "nvclock.h"
/* various defines for register offsets and such are needed */
#define W83781D_REG_LOCAL_TEMP 0x27
#define W83781D_REG_REMOTE_TEMP 0x27
#define W83781D_REG_FAN1_COUNT 0x28
#define W83781D_REG_MAN_ID 0x4f
#define ASUS_MAN_ID 0x12
#define W83781D_MAN_ID 0x5c
#define W83781D_REG_CHIP_ID 0x58
#define W83781D_REG_FAN_DIVISOR 0x47
/* This function should return the chip type .. */
int w83781d_detect(I2CDevPtr dev)
{
I2CByte man_id, chip_id;
xf86I2CReadByte (dev, W83781D_REG_MAN_ID, &man_id);
xf86I2CReadByte (dev, W83781D_REG_CHIP_ID, &chip_id);
switch(man_id)
{
case ASUS_MAN_ID:
case W83781D_MAN_ID:
/* We still need a chip_id check (0x11 for w83781d) */
dev->chip_id = W83781D;
dev->chip_name = (char*)strdup("Winbond W83781D");
break;
default:
printf("Uknown Winbond vendor: %x\n", man_id);
return 0;
}
return 1;
}
int w83781d_get_board_temp(I2CDevPtr dev)
{
I2CByte temp;
xf86I2CReadByte(dev, W83781D_REG_LOCAL_TEMP, &temp);
return temp;
}
/* only one temperature exists ... */
int w83781d_get_gpu_temp(I2CDevPtr dev)
{
I2CByte temp;
xf86I2CReadByte(dev, W83781D_REG_REMOTE_TEMP, &temp);
return temp;
}
int w83781d_get_fanspeed_rpm(I2CDevPtr dev)
{
I2CByte count, divisor;
xf86I2CReadByte(dev, W83781D_REG_FAN1_COUNT, &count);
xf86I2CReadByte(dev, W83781D_REG_FAN_DIVISOR, &divisor);
divisor = 1 << ((divisor >> 4) & 0x3); /* bit 5:4 are for fan1; a value of 0 means a divider of 1, while 2 means 2^3 = 8 */
/* A count of 0xff indicates that something is wrong i.e. no fan is connected */
if(count == 0xff)
return 0;
return 1350000/(count * divisor);
}
float w83781d_get_fanspeed_pwm(I2CDevPtr dev)
{
}
int w83781d_set_fanspeed_pwm(I2CDevPtr dev, float speed)
{
}