2010-07-02 09:24:49

by Guenter Roeck

[permalink] [raw]
Subject: [PATCH/RFC v2] hwmon: Add support for W83667HG-B and W83667HG-I to w83627ehf driver.

Signed-off-by: Guenter Roeck <[email protected]>
---
Key relevant difference between W83667HG and W83667HG-B are the Chip ID as well
as the fan output and step output register addresses. Those differences are
addressed with this patch.

There are other relevant changes in the mapping of input sensors to fan
control (W83667HG datasheet chapter 8.7, W83667HG-B datasheet chapter 8.5).
However, control of those mappings is not implemented in the driver, thus the
respective changes should not have an impact on driver operation.

Changes made in this patch are based on information from datasheets only. The
patch has not yet been tested with real hardware. The patch will have to be
tested with real hardware before it is integrated, and is thus submitted as RFC.

Changes in v2:
- Removed dash from hwmon device name.
- Moved global array pointers to per-device data.
- Added chip detection for W83667HG-I
(assumed to be identical to W83667HG; needs to be validated).
---
drivers/hwmon/w83627ehf.c | 57 ++++++++++++++++++++++++++++++++++++++------
1 files changed, 49 insertions(+), 8 deletions(-)

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 0dcaba9..099454b 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -39,6 +39,8 @@
w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
+ w83667hg-i 9 5 3 3 0xb340 0xc1 0x5ca3
+ w83667hg-b 9 5 3 3 0xb350 0xc1 0x5ca3
*/

#include <linux/module.h>
@@ -55,7 +57,7 @@
#include <linux/io.h>
#include "lm75.h"

-enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg };
+enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg, w83667hg_b };

/* used to set data->name = w83627ehf_device_names[data->sio_kind] */
static const char * w83627ehf_device_names[] = {
@@ -63,6 +65,7 @@ static const char * w83627ehf_device_names[] = {
"w83627dhg",
"w83627dhg",
"w83667hg",
+ "w83667hg",
};

static unsigned short force_id;
@@ -91,6 +94,8 @@ MODULE_PARM_DESC(force_id, "Override the detected device ID");
#define SIO_W83627DHG_ID 0xa020
#define SIO_W83627DHG_P_ID 0xb070
#define SIO_W83667HG_ID 0xa510
+#define SIO_W83667HG_I_ID 0xb340
+#define SIO_W83667HG_B_ID 0xb350
#define SIO_ID_MASK 0xFFF0

static inline void
@@ -201,8 +206,14 @@ static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 };
static const u8 W83627EHF_REG_FAN_START_OUTPUT[] = { 0x0a, 0x0b, 0x16, 0x65 };
static const u8 W83627EHF_REG_FAN_STOP_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 };
static const u8 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0c, 0x0d, 0x17, 0x66 };
-static const u8 W83627EHF_REG_FAN_MAX_OUTPUT[] = { 0xff, 0x67, 0xff, 0x69 };
-static const u8 W83627EHF_REG_FAN_STEP_OUTPUT[] = { 0xff, 0x68, 0xff, 0x6a };
+
+static const u8 W83627EHF_REG_FAN_MAX_OUTPUT_COMMON[]
+ = { 0xff, 0x67, 0xff, 0x69 };
+static const u8 W83627EHF_REG_FAN_STEP_OUTPUT_COMMON[]
+ = { 0xff, 0x68, 0xff, 0x6a };
+
+static const u8 W83627EHF_REG_FAN_MAX_OUTPUT_W83667_B[] = { 0x67, 0x69, 0x6b };
+static const u8 W83627EHF_REG_FAN_STEP_OUTPUT_W83667_B[] = { 0x68, 0x6a, 0x6c };

/*
* Conversions
@@ -277,6 +288,11 @@ struct w83627ehf_data {
struct device *hwmon_dev;
struct mutex lock;

+ const u8 *REG_FAN_START_OUTPUT;
+ const u8 *REG_FAN_STOP_OUTPUT;
+ const u8 *REG_FAN_MAX_OUTPUT;
+ const u8 *REG_FAN_STEP_OUTPUT;
+
struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
@@ -1126,7 +1142,7 @@ store_##reg(struct device *dev, struct device_attribute *attr, \
u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \
mutex_lock(&data->update_lock); \
data->reg[nr] = val; \
- w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
+ w83627ehf_write_value(data, data->REG_##REG[nr], val); \
mutex_unlock(&data->update_lock); \
return count; \
}
@@ -1343,22 +1359,37 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
/* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9;
/* 667HG has 3 pwms */
- data->pwm_num = (sio_data->kind == w83667hg) ? 3 : 4;
+ data->pwm_num = (sio_data->kind == w83667hg
+ || sio_data->kind == w83667hg_b) ? 3 : 4;

/* Check temp3 configuration bit for 667HG */
- if (sio_data->kind == w83667hg) {
+ if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) {
data->temp3_disable = w83627ehf_read_value(data,
W83627EHF_REG_TEMP_CONFIG[1]) & 0x01;
data->in6_skip = !data->temp3_disable;
}

+ data->REG_FAN_START_OUTPUT = W83627EHF_REG_FAN_START_OUTPUT;
+ data->REG_FAN_STOP_OUTPUT = W83627EHF_REG_FAN_STOP_OUTPUT;
+ if (sio_data->kind == w83667hg_b) {
+ data->REG_FAN_MAX_OUTPUT
+ = W83627EHF_REG_FAN_MAX_OUTPUT_W83667_B;
+ data->REG_FAN_STEP_OUTPUT
+ = W83627EHF_REG_FAN_STEP_OUTPUT_W83667_B;
+ } else {
+ data->REG_FAN_MAX_OUTPUT
+ = W83627EHF_REG_FAN_MAX_OUTPUT_COMMON;
+ data->REG_FAN_STEP_OUTPUT
+ = W83627EHF_REG_FAN_STEP_OUTPUT_COMMON;
+ }
+
/* Initialize the chip */
w83627ehf_init_device(data);

data->vrm = vid_which_vrm();
superio_enter(sio_data->sioreg);
/* Read VID value */
- if (sio_data->kind == w83667hg) {
+ if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) {
/* W83667HG has different pins for VID input and output, so
we can get the VID input values directly at logical device D
0xe3. */
@@ -1409,7 +1440,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
}

/* fan4 and fan5 share some pins with the GPIO and serial flash */
- if (sio_data->kind == w83667hg) {
+ if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) {
fan5pin = superio_inb(sio_data->sioreg, 0x27) & 0x20;
fan4pin = superio_inb(sio_data->sioreg, 0x27) & 0x40;
} else {
@@ -1556,6 +1587,8 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
static const char __initdata sio_name_W83627DHG_P[] = "W83627DHG-P";
static const char __initdata sio_name_W83667HG[] = "W83667HG";
+ static const char __initdata sio_name_W83667HG_I[] = "W83667HG-I";
+ static const char __initdata sio_name_W83667HG_B[] = "W83667HG-B";

u16 val;
const char *sio_name;
@@ -1588,6 +1621,14 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
sio_data->kind = w83667hg;
sio_name = sio_name_W83667HG;
break;
+ case SIO_W83667HG_I_ID:
+ sio_data->kind = w83667hg;
+ sio_name = sio_name_W83667HG_I;
+ break;
+ case SIO_W83667HG_B_ID:
+ sio_data->kind = w83667hg_b;
+ sio_name = sio_name_W83667HG_B;
+ break;
default:
if (val != 0xffff)
pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n",
--
1.7.0.87.g0901d


2010-07-03 08:35:42

by Jean Delvare

[permalink] [raw]
Subject: Re: [PATCH/RFC v2] hwmon: Add support for W83667HG-B and W83667HG-I to w83627ehf driver.

Hi Guenter,

On Fri, 2 Jul 2010 02:23:26 -0700, Guenter Roeck wrote:
> Signed-off-by: Guenter Roeck <[email protected]>
> ---
> Key relevant difference between W83667HG and W83667HG-B are the Chip ID as well
> as the fan output and step output register addresses. Those differences are
> addressed with this patch.
>
> There are other relevant changes in the mapping of input sensors to fan
> control (W83667HG datasheet chapter 8.7, W83667HG-B datasheet chapter 8.5).
> However, control of those mappings is not implemented in the driver, thus the
> respective changes should not have an impact on driver operation.
>
> Changes made in this patch are based on information from datasheets only. The
> patch has not yet been tested with real hardware. The patch will have to be
> tested with real hardware before it is integrated, and is thus submitted as RFC.
>
> Changes in v2:
> - Removed dash from hwmon device name.
> - Moved global array pointers to per-device data.
> - Added chip detection for W83667HG-I
> (assumed to be identical to W83667HG; needs to be validated).
> ---
> drivers/hwmon/w83627ehf.c | 57 ++++++++++++++++++++++++++++++++++++++------
> 1 files changed, 49 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
> index 0dcaba9..099454b 100644
> --- a/drivers/hwmon/w83627ehf.c
> +++ b/drivers/hwmon/w83627ehf.c
> @@ -39,6 +39,8 @@
> w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
> w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
> w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
> + w83667hg-i 9 5 3 3 0xb340 0xc1 0x5ca3

As discussed before, this one is a 677 series, not 667. That being
said, I admit that the device ID proximity between the 667HG-B and the
677HG-I is troubling, and invites to optimism as far as compatibility
between these two chips is concerned.

> + w83667hg-b 9 5 3 3 0xb350 0xc1 0x5ca3
> */
>
> #include <linux/module.h>
> @@ -55,7 +57,7 @@
> #include <linux/io.h>
> #include "lm75.h"
>
> -enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg };
> +enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg, w83667hg_b };
>
> /* used to set data->name = w83627ehf_device_names[data->sio_kind] */
> static const char * w83627ehf_device_names[] = {
> @@ -63,6 +65,7 @@ static const char * w83627ehf_device_names[] = {
> "w83627dhg",
> "w83627dhg",
> "w83667hg",
> + "w83667hg",
> };
>
> static unsigned short force_id;
> @@ -91,6 +94,8 @@ MODULE_PARM_DESC(force_id, "Override the detected device ID");
> #define SIO_W83627DHG_ID 0xa020
> #define SIO_W83627DHG_P_ID 0xb070
> #define SIO_W83667HG_ID 0xa510
> +#define SIO_W83667HG_I_ID 0xb340
> +#define SIO_W83667HG_B_ID 0xb350
> #define SIO_ID_MASK 0xFFF0
>
> static inline void
> @@ -201,8 +206,14 @@ static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 };
> static const u8 W83627EHF_REG_FAN_START_OUTPUT[] = { 0x0a, 0x0b, 0x16, 0x65 };
> static const u8 W83627EHF_REG_FAN_STOP_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 };
> static const u8 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0c, 0x0d, 0x17, 0x66 };
> -static const u8 W83627EHF_REG_FAN_MAX_OUTPUT[] = { 0xff, 0x67, 0xff, 0x69 };
> -static const u8 W83627EHF_REG_FAN_STEP_OUTPUT[] = { 0xff, 0x68, 0xff, 0x6a };
> +
> +static const u8 W83627EHF_REG_FAN_MAX_OUTPUT_COMMON[]
> + = { 0xff, 0x67, 0xff, 0x69 };
> +static const u8 W83627EHF_REG_FAN_STEP_OUTPUT_COMMON[]
> + = { 0xff, 0x68, 0xff, 0x6a };
> +
> +static const u8 W83627EHF_REG_FAN_MAX_OUTPUT_W83667_B[] = { 0x67, 0x69, 0x6b };
> +static const u8 W83627EHF_REG_FAN_STEP_OUTPUT_W83667_B[] = { 0x68, 0x6a, 0x6c };
>
> /*
> * Conversions
> @@ -277,6 +288,11 @@ struct w83627ehf_data {
> struct device *hwmon_dev;
> struct mutex lock;
>
> + const u8 *REG_FAN_START_OUTPUT;
> + const u8 *REG_FAN_STOP_OUTPUT;
> + const u8 *REG_FAN_MAX_OUTPUT;
> + const u8 *REG_FAN_STEP_OUTPUT;
> +
> struct mutex update_lock;
> char valid; /* !=0 if following fields are valid */
> unsigned long last_updated; /* In jiffies */
> @@ -1126,7 +1142,7 @@ store_##reg(struct device *dev, struct device_attribute *attr, \
> u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \
> mutex_lock(&data->update_lock); \
> data->reg[nr] = val; \
> - w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
> + w83627ehf_write_value(data, data->REG_##REG[nr], val); \
> mutex_unlock(&data->update_lock); \
> return count; \
> }
> @@ -1343,22 +1359,37 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
> /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
> data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9;
> /* 667HG has 3 pwms */
> - data->pwm_num = (sio_data->kind == w83667hg) ? 3 : 4;
> + data->pwm_num = (sio_data->kind == w83667hg
> + || sio_data->kind == w83667hg_b) ? 3 : 4;
>
> /* Check temp3 configuration bit for 667HG */
> - if (sio_data->kind == w83667hg) {
> + if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) {
> data->temp3_disable = w83627ehf_read_value(data,
> W83627EHF_REG_TEMP_CONFIG[1]) & 0x01;
> data->in6_skip = !data->temp3_disable;
> }
>
> + data->REG_FAN_START_OUTPUT = W83627EHF_REG_FAN_START_OUTPUT;
> + data->REG_FAN_STOP_OUTPUT = W83627EHF_REG_FAN_STOP_OUTPUT;
> + if (sio_data->kind == w83667hg_b) {
> + data->REG_FAN_MAX_OUTPUT
> + = W83627EHF_REG_FAN_MAX_OUTPUT_W83667_B;
> + data->REG_FAN_STEP_OUTPUT
> + = W83627EHF_REG_FAN_STEP_OUTPUT_W83667_B;
> + } else {
> + data->REG_FAN_MAX_OUTPUT
> + = W83627EHF_REG_FAN_MAX_OUTPUT_COMMON;
> + data->REG_FAN_STEP_OUTPUT
> + = W83627EHF_REG_FAN_STEP_OUTPUT_COMMON;
> + }
> +
> /* Initialize the chip */
> w83627ehf_init_device(data);
>
> data->vrm = vid_which_vrm();
> superio_enter(sio_data->sioreg);
> /* Read VID value */
> - if (sio_data->kind == w83667hg) {
> + if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) {
> /* W83667HG has different pins for VID input and output, so
> we can get the VID input values directly at logical device D
> 0xe3. */
> @@ -1409,7 +1440,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
> }
>
> /* fan4 and fan5 share some pins with the GPIO and serial flash */
> - if (sio_data->kind == w83667hg) {
> + if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) {
> fan5pin = superio_inb(sio_data->sioreg, 0x27) & 0x20;
> fan4pin = superio_inb(sio_data->sioreg, 0x27) & 0x40;
> } else {
> @@ -1556,6 +1587,8 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
> static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
> static const char __initdata sio_name_W83627DHG_P[] = "W83627DHG-P";
> static const char __initdata sio_name_W83667HG[] = "W83667HG";
> + static const char __initdata sio_name_W83667HG_I[] = "W83667HG-I";
> + static const char __initdata sio_name_W83667HG_B[] = "W83667HG-B";
>
> u16 val;
> const char *sio_name;
> @@ -1588,6 +1621,14 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
> sio_data->kind = w83667hg;
> sio_name = sio_name_W83667HG;
> break;
> + case SIO_W83667HG_I_ID:
> + sio_data->kind = w83667hg;
> + sio_name = sio_name_W83667HG_I;
> + break;
> + case SIO_W83667HG_B_ID:
> + sio_data->kind = w83667hg_b;
> + sio_name = sio_name_W83667HG_B;
> + break;
> default:
> if (val != 0xffff)
> pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n",

Other than this, I have no objection, your patch looks sane.

After your next iteration, I'll publish a standalone driver with your
patch, for easier testing.

--
Jean Delvare

2010-07-03 10:15:00

by 宾西蒙

[permalink] [raw]
Subject: Re: [PATCH/RFC v2] hwmon: Add support for W83667HG-B and W83667HG-I to w83627ehf driver.

在 2010-07-03六的 10:35 +0200,Jean Delvare写道:
> Hi Guenter,
>
> On Fri, 2 Jul 2010 02:23:26 -0700, Guenter Roeck wrote:
> > + w83667hg-i 9 5 3 3 0xb340 0xc1 0x5ca3
>
> As discussed before, this one is a 677 series, not 667. That being
> said, I admit that the device ID proximity between the 667HG-B and the
> 677HG-I is troubling, and invites to optimism as far as compatibility
> between these two chips is concerned.

I think we got something confused here, I was looking for the W836
*seven* 7 HG-I driver (which has ID 0xb470) and not the W836 *six* 7
HG-I one, although maybe someone else might benefit from that one.

It has at least 5 fans, with 3 pwm and 1 voltage regulatory. Using the
w83667hg driver, I can only see the speed of fan2 and fan3 in sensors
output. the w83627dhg-p already seems to read out 3 of the 5 fan speeds.
The temperatures seem rather wonky, I might need to compare with the
bios readings some more.

2010-07-03 15:12:47

by Guenter Roeck

[permalink] [raw]
Subject: Re: [PATCH/RFC v2] hwmon: Add support for W83667HG-B and W83667HG-I to w83627ehf driver.

On Sat, Jul 03, 2010 at 04:35:36AM -0400, Jean Delvare wrote:
[...]
>
> Other than this, I have no objection, your patch looks sane.
>
> After your next iteration, I'll publish a standalone driver with your
> patch, for easier testing.
>
I submitted v3 a minute ago. I had to make a couple of additional changes,
so you'll have to at least browse through it again. This is still a single
patch. There are some generic changes, though, so I plan to split it into
a generic patch and a -B specific patch next time around. Would be great
to get some test feedback first, though.

Guenter

2010-07-03 20:56:18

by Jean Delvare

[permalink] [raw]
Subject: Re: [PATCH/RFC v2] hwmon: Add support for W83667HG-B and W83667HG-I to w83627ehf driver.

Hi 宾西蒙,

On Sat, 03 Jul 2010 12:15:48 +0200, 宾西蒙 wrote:
> 在 2010-07-03六的 10:35 +0200,Jean Delvare写道:
> > Hi Guenter,
> >
> > On Fri, 2 Jul 2010 02:23:26 -0700, Guenter Roeck wrote:
> > > + w83667hg-i 9 5 3 3 0xb340 0xc1 0x5ca3
> >
> > As discussed before, this one is a 677 series, not 667. That being
> > said, I admit that the device ID proximity between the 667HG-B and the
> > 677HG-I is troubling, and invites to optimism as far as compatibility
> > between these two chips is concerned.
>
> I think we got something confused here, I was looking for the W836
> *seven* 7 HG-I driver (which has ID 0xb470) and not the W836 *six* 7
> HG-I one, although maybe someone else might benefit from that one.

Yes, there was some confusion. For one thing, the W83667HG-I does not
exist. And for another, I have no idea where Guenter found the device
id 0xb340. None of the Nuvoton W836x7HG datasheets I have mention this
ID. All I know of is 0xb350 for the W83667HG-B and 0xb470 for the
W83677HG-I (which apparently was renamed to something different
meanwhile.)

--
Jean Delvare

2010-07-03 21:29:38

by Guenter Roeck

[permalink] [raw]
Subject: Re: [PATCH/RFC v2] hwmon: Add support for W83667HG-B and W83667HG-I to w83627ehf driver.

On Sat, Jul 03, 2010 at 04:56:13PM -0400, Jean Delvare wrote:
> Hi 宾西蒙,
>
> On Sat, 03 Jul 2010 12:15:48 +0200, 宾西蒙 wrote:
> > 在 2010-07-03六的 10:35 +0200,Jean Delvare写道:
> > > Hi Guenter,
> > >
> > > On Fri, 2 Jul 2010 02:23:26 -0700, Guenter Roeck wrote:
> > > > + w83667hg-i 9 5 3 3 0xb340 0xc1 0x5ca3
> > >
> > > As discussed before, this one is a 677 series, not 667. That being
> > > said, I admit that the device ID proximity between the 667HG-B and the
> > > 677HG-I is troubling, and invites to optimism as far as compatibility
> > > between these two chips is concerned.
> >
> > I think we got something confused here, I was looking for the W836
> > *seven* 7 HG-I driver (which has ID 0xb470) and not the W836 *six* 7
> > HG-I one, although maybe someone else might benefit from that one.
>
> Yes, there was some confusion. For one thing, the W83667HG-I does not
> exist. And for another, I have no idea where Guenter found the device
> id 0xb340. None of the Nuvoton W836x7HG datasheets I have mention this
> ID. All I know of is 0xb350 for the W83667HG-B and 0xb470 for the
> W83677HG-I (which apparently was renamed to something different
> meanwhile.)
>
> --
> Jean Delvare

Most likely I just got it wrong.

Guenter