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implement pwm enable

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1462 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Mark D. Studebaker committed 2002-07-18 02:56:06 +00:00
1 parent 82acbc1a22
commit 30220d235e
1 file changed
+24 -7
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kernel/chips/vt1211.c
+24 -7
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@@ -19,6 +19,8 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* Supports VIA VT1211 Super I/O sensors via ISA (LPC) accesses only. */
#include <linux/version.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -81,21 +83,21 @@ superio_inb(int reg)
}
static inline void
superio_select()
superio_select(void)
{
outb(DEV, REG);
outb(PME, VAL);
}
static inline void
superio_enter()
superio_enter(void)
{
outb(0x87, REG);
outb(0x87, REG);
}
static inline void
superio_exit()
superio_exit(void)
{
outb(0xAA, REG);
}
@@ -108,6 +110,7 @@ superio_exit()
/* pwm numbered 1-2 */
#define VT1211_REG_PWM(nr) (0x5f + (nr))
#define VT1211_REG_PWM_CTL 0x51
/* The VT1211 registers */
/* We define the sensors as follows. Somewhat convoluted to minimize
@@ -115,14 +118,14 @@ superio_exit()
Sensor Voltage Mode Temp Mode
-------- ------------ ---------
Reading 1 temp3
Reading 3 temp1
Reading 3 temp1 not in vt1211
UCH1/Reading2 in0 temp2
UCH2 in1 temp4
UCH3 in2 temp5
UCH4 in3 temp6
UCH5 in4 temp7
3.3V in5
-12V in6
-12V in6 not in vt1211
*/
/* ins numbered 0-6 */
@@ -213,6 +216,7 @@ struct vt1211_data {
u8 fan_div[2]; /* Register encoding, shifted right */
u16 alarms; /* Register encoding */
u8 pwm[2]; /* Register value */
u8 pwm_ctl; /* Register value */
u8 vid; /* Register encoding */
u8 vrm;
u8 uch_config;
@@ -574,6 +578,7 @@ void vt1211_update_client(struct i2c_client *client)
data->pwm[i - 1] = vt_rdval(client, VT1211_REG_PWM(i));
}
data->pwm_ctl = vt_rdval(client, VT1211_REG_PWM_CTL);
i = vt_rdval(client, VT1211_REG_FANDIV);
data->fan_div[0] = (i >> 4) & 0x03;
data->fan_div[1] = i >> 6;
@@ -726,13 +731,25 @@ void vt1211_pwm(struct i2c_client *client, int operation, int ctl_name,
else if (operation == SENSORS_PROC_REAL_READ) {
vt1211_update_client(client);
results[0] = PWM_FROM_REG(data->pwm[nr - 1]);
results[1] = 1; /* always enabled */
results[1] = (data->pwm_ctl >> (3 + (4 * (nr - 1)))) & 1;
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->pwm[nr - 1] = PWM_TO_REG(results[0]);
if (*nrels_mag >= 2) {
/* ignore enable for now */
if(results[1]) {
data->pwm_ctl |=
(0x08 << (4 * (nr - 1)));
vt1211_write_value(client,
VT1211_REG_PWM_CTL,
data->pwm_ctl);
} else {
data->pwm_ctl &=
~ (0x08 << (4 * (nr - 1)));
vt1211_write_value(client,
VT1211_REG_PWM_CTL,
data->pwm_ctl);
}
}
vt1211_write_value(client, VT1211_REG_PWM(nr),
data->pwm[nr - 1]);