hwmon: (f71882fg) Add support for the F71858F

Add support for the hwmon part of the Fintek F71858FG superio IC to the
f71882fg driver. Many thanks to Jelle de Jong for lending me a motherboard 
with this superio on it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

2 files changed, 158 insertions, 38 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 79117c3abb4..f8090e137fe 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -306,11 +306,11 @@ config SENSORS_F71805F
           will be called f71805f.
 
 config SENSORS_F71882FG
-        tristate "Fintek F71862FG, F71882FG and F8000"
+        tristate "Fintek F71858FG, F71862FG, F71882FG and F8000"
         depends on EXPERIMENTAL
         help
           If you say yes here you get support for hardware monitoring
-          features of the Fintek F71882FG/F71883FG, F71862FG/71863FG
+          features of the Fintek F71858FG, F71862FG/71863FG, F71882FG/F71883FG
           and F8000 Super-I/O chips.
 
           This driver can also be built as a module.  If so, the module
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 7e5b94c1944..4146105f1a5 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -32,6 +32,7 @@
 
 #define DRVNAME "f71882fg"
 
+#define SIO_F71858FG_LD_HWM     0x02    /* Hardware monitor logical device */
 #define SIO_F71882FG_LD_HWM     0x04    /* Hardware monitor logical device */
 #define SIO_UNLOCK_KEY          0x87    /* Key to enable Super-I/O */
 #define SIO_LOCK_KEY            0xAA    /* Key to diasble Super-I/O */
@@ -44,6 +45,7 @@
 #define SIO_REG_ADDR            0x60    /* Logical device address (2 bytes) */
 
 #define SIO_FINTEK_ID           0x1934  /* Manufacturers ID */
+#define SIO_F71858_ID           0x0507  /* Chipset ID */
 #define SIO_F71862_ID           0x0601  /* Chipset ID */
 #define SIO_F71882_ID           0x0541  /* Chipset ID */
 #define SIO_F8000_ID            0x0581  /* Chipset ID */
@@ -70,6 +72,7 @@
 #define F71882FG_REG_TEMP_HIGH(nr)      (0x81 + 2 * (nr))
 #define F71882FG_REG_TEMP_STATUS        0x62
 #define F71882FG_REG_TEMP_BEEP          0x63
+#define F71882FG_REG_TEMP_CONFIG        0x69
 #define F71882FG_REG_TEMP_HYST(nr)      (0x6C + (nr))
 #define F71882FG_REG_TEMP_TYPE          0x6B
 #define F71882FG_REG_TEMP_DIODE_OPEN    0x6F
@@ -92,9 +95,10 @@ static unsigned short force_id;
 module_param(force_id, ushort, 0);
 MODULE_PARM_DESC(force_id, "Override the detected device ID");
 
-enum chips { f71862fg, f71882fg, f8000 };
+enum chips { f71858fg, f71862fg, f71882fg, f8000 };
 
 static const char *f71882fg_names[] = {
+        "f71858fg",
         "f71862fg",
         "f71882fg",
         "f8000",
@@ -119,6 +123,7 @@ struct f71882fg_data {
         struct device *hwmon_dev;
 
         struct mutex update_lock;
+        int temp_start;                 /* temp numbering start (0 or 1) */
         char valid;                     /* !=0 if following fields are valid */
         unsigned long last_updated;     /* In jiffies */
         unsigned long last_limits;      /* In jiffies */
@@ -136,7 +141,7 @@ struct f71882fg_data {
         /* Note: all models have only 3 temperature channels, but on some
            they are addressed as 0-2 and on others as 1-3, so for coding
            convenience we reserve space for 4 channels */
-        u8      temp[4];
+        u16     temp[4];
         u8      temp_ovt[4];
         u8      temp_high[4];
         u8      temp_hyst[2]; /* 2 hysts stored per reg */
@@ -144,6 +149,7 @@ struct f71882fg_data {
         u8      temp_status;
         u8      temp_beep;
         u8      temp_diode_open;
+        u8      temp_config;
         u8      pwm[4];
         u8      pwm_enable;
         u8      pwm_auto_point_hyst[2];
@@ -252,6 +258,50 @@ static struct platform_driver f71882fg_driver = {
 
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 
+/* Temp and in attr for the f71858fg */
+static struct sensor_device_attribute_2 f71858fg_in_temp_attr[] = {
+        SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
+        SENSOR_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 0, 1),
+        SENSOR_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 0, 2),
+        SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
+        SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
+                store_temp_max, 0, 0),
+        SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+                store_temp_max_hyst, 0, 0),
+        SENSOR_ATTR_2(temp1_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 0),
+        SENSOR_ATTR_2(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+                store_temp_crit, 0, 0),
+        SENSOR_ATTR_2(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
+                0, 0),
+        SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 4),
+        SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 0),
+        SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1),
+        SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
+                store_temp_max, 0, 1),
+        SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+                store_temp_max_hyst, 0, 1),
+        SENSOR_ATTR_2(temp2_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 1),
+        SENSOR_ATTR_2(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+                store_temp_crit, 0, 1),
+        SENSOR_ATTR_2(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
+                0, 1),
+        SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
+        SENSOR_ATTR_2(temp2_type, S_IRUGO, show_temp_type, NULL, 0, 1),
+        SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
+        SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2),
+        SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
+                store_temp_max, 0, 2),
+        SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+                store_temp_max_hyst, 0, 2),
+        SENSOR_ATTR_2(temp3_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 2),
+        SENSOR_ATTR_2(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+                store_temp_crit, 0, 2),
+        SENSOR_ATTR_2(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
+                0, 2),
+        SENSOR_ATTR_2(temp3_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
+        SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
+};
+
 /* Temp and in attr common to both the f71862fg and f71882fg */
 static struct sensor_device_attribute_2 f718x2fg_in_temp_attr[] = {
         SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
@@ -476,22 +526,8 @@ static struct sensor_device_attribute_2 f71862fg_fan_attr[] = {
                       show_pwm_auto_point_temp_hyst, NULL, 3, 2),
 };
 
-/* Fan / PWM attr for the f71882fg */
-static struct sensor_device_attribute_2 f71882fg_fan_attr[] = {
-        SENSOR_ATTR_2(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
-                store_fan_beep, 0, 0),
-        SENSOR_ATTR_2(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
-                store_fan_beep, 0, 1),
-        SENSOR_ATTR_2(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
-                store_fan_beep, 0, 2),
-        SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
-        SENSOR_ATTR_2(fan4_full_speed, S_IRUGO|S_IWUSR,
-                      show_fan_full_speed,
-                      store_fan_full_speed, 0, 3),
-        SENSOR_ATTR_2(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
-                store_fan_beep, 0, 3),
-        SENSOR_ATTR_2(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 3),
-
+/* Fan / PWM attr common to both the f71882fg and f71858fg */
+static struct sensor_device_attribute_2 f71882fg_f71858fg_fan_attr[] = {
         SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO|S_IWUSR,
                       show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
                       0, 0),
@@ -605,6 +641,24 @@ static struct sensor_device_attribute_2 f71882fg_fan_attr[] = {
                       show_pwm_auto_point_temp_hyst, NULL, 2, 2),
         SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IRUGO,
                       show_pwm_auto_point_temp_hyst, NULL, 3, 2),
+};
+
+/* Fan / PWM attr found on the f71882fg but not on the f71858fg */
+static struct sensor_device_attribute_2 f71882fg_fan_attr[] = {
+        SENSOR_ATTR_2(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+                store_fan_beep, 0, 0),
+        SENSOR_ATTR_2(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+                store_fan_beep, 0, 1),
+        SENSOR_ATTR_2(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+                store_fan_beep, 0, 2),
+
+        SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
+        SENSOR_ATTR_2(fan4_full_speed, S_IRUGO|S_IWUSR,
+                      show_fan_full_speed,
+                      store_fan_full_speed, 0, 3),
+        SENSOR_ATTR_2(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+                store_fan_beep, 0, 3),
+        SENSOR_ATTR_2(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 3),
 
         SENSOR_ATTR_2(pwm4, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 3),
         SENSOR_ATTR_2(pwm4_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
@@ -855,13 +909,20 @@ static void f71882fg_write16(struct f71882fg_data *data, u8 reg, u16 val)
         outb(val & 255, data->addr + DATA_REG_OFFSET);
 }
 
+static u16 f71882fg_read_temp(struct f71882fg_data *data, int nr)
+{
+        if (data->type == f71858fg)
+                return f71882fg_read16(data, F71882FG_REG_TEMP(nr));
+        else
+                return f71882fg_read8(data, F71882FG_REG_TEMP(nr));
+}
+
 static struct f71882fg_data *f71882fg_update_device(struct device *dev)
 {
         struct f71882fg_data *data = dev_get_drvdata(dev);
         int nr, reg = 0, reg2;
         int nr_fans = (data->type == f71882fg) ? 4 : 3;
-        int nr_ins = (data->type == f8000) ? 3 : 9;
-        int temp_start = (data->type == f8000) ? 0 : 1;
+        int nr_ins = (data->type == f71858fg || data->type == f8000) ? 3 : 9;
 
         mutex_lock(&data->update_lock);
 
@@ -876,7 +937,7 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
                 }
 
                 /* Get High & boundary temps*/
-                for (nr = temp_start; nr < 3 + temp_start; nr++) {
+                for (nr = data->temp_start; nr < 3 + data->temp_start; nr++) {
                         data->temp_ovt[nr] = f71882fg_read8(data,
                                                 F71882FG_REG_TEMP_OVT(nr));
                         data->temp_high[nr] = f71882fg_read8(data,
@@ -884,14 +945,17 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
                 }
 
                 if (data->type != f8000) {
-                        data->fan_beep = f71882fg_read8(data,
-                                                F71882FG_REG_FAN_BEEP);
-                        data->temp_beep = f71882fg_read8(data,
-                                                F71882FG_REG_TEMP_BEEP);
                         data->temp_hyst[0] = f71882fg_read8(data,
                                                 F71882FG_REG_TEMP_HYST(0));
                         data->temp_hyst[1] = f71882fg_read8(data,
                                                 F71882FG_REG_TEMP_HYST(1));
+                }
+
+                if (data->type == f71862fg || data->type == f71882fg) {
+                        data->fan_beep = f71882fg_read8(data,
+                                                F71882FG_REG_FAN_BEEP);
+                        data->temp_beep = f71882fg_read8(data,
+                                                F71882FG_REG_TEMP_BEEP);
                         /* Have to hardcode type, because temp1 is special */
                         reg  = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
                         data->temp_type[2] = (reg & 0x04) ? 2 : 4;
@@ -902,10 +966,10 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
                         data->temp_type[1] = 6 /* PECI */;
                 else if ((reg2 & 0x03) == 0x02)
                         data->temp_type[1] = 5 /* AMDSI */;
-                else if (data->type != f8000)
+                else if (data->type == f71862fg || data->type == f71882fg)
                         data->temp_type[1] = (reg & 0x02) ? 2 : 4;
                 else
-                        data->temp_type[1] = 2; /* F8000 only supports BJT */
+                        data->temp_type[1] = 2; /* Only supports BJT */
 
                 data->pwm_enable = f71882fg_read8(data,
                                                   F71882FG_REG_PWM_ENABLE);
@@ -961,9 +1025,8 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
                                                 F71882FG_REG_TEMP_STATUS);
                 data->temp_diode_open = f71882fg_read8(data,
                                                 F71882FG_REG_TEMP_DIODE_OPEN);
-                for (nr = temp_start; nr < 3 + temp_start; nr++)
-                        data->temp[nr] = f71882fg_read8(data,
-                                                F71882FG_REG_TEMP(nr));
+                for (nr = data->temp_start; nr < 3 + data->temp_start; nr++)
+                        data->temp[nr] = f71882fg_read_temp(data, nr);
 
                 data->fan_status = f71882fg_read8(data,
                                                 F71882FG_REG_FAN_STATUS);
@@ -1166,8 +1229,24 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
 {
         struct f71882fg_data *data = f71882fg_update_device(dev);
         int nr = to_sensor_dev_attr_2(devattr)->index;
+        int sign, temp;
+
+        if (data->type == f71858fg) {
+                /* TEMP_TABLE_SEL 1 or 3 ? */
+                if (data->temp_config & 1) {
+                        sign = data->temp[nr] & 0x0001;
+                        temp = (data->temp[nr] >> 5) & 0x7ff;
+                } else {
+                        sign = data->temp[nr] & 0x8000;
+                        temp = (data->temp[nr] >> 5) & 0x3ff;
+                }
+                temp *= 125;
+                if (sign)
+                        temp -= 128000;
+        } else
+                temp = data->temp[nr] * 1000;
 
-        return sprintf(buf, "%d\n", data->temp[nr] * 1000);
+        return sprintf(buf, "%d\n", temp);
 }
 
 static ssize_t show_temp_max(struct device *dev, struct device_attribute
@@ -1460,6 +1539,12 @@ static ssize_t store_pwm_enable(struct device *dev, struct device_attribute
         } else {
                 switch (val) {
                 case 1:
+                        /* The f71858fg does not support manual RPM mode */
+                        if (data->type == f71858fg &&
+                            ((data->pwm_enable >> (2 * nr)) & 1)) {
+                                count = -EINVAL;
+                                goto leave;
+                        }
                         data->pwm_enable |= 2 << (2 * nr);
                         break;          /* Manual */
                 case 2:
@@ -1618,9 +1703,9 @@ static ssize_t show_pwm_auto_point_channel(struct device *dev,
         int result;
         struct f71882fg_data *data = f71882fg_update_device(dev);
         int nr = to_sensor_dev_attr_2(devattr)->index;
-        int temp_start = (data->type == f8000) ? 0 : 1;
 
-        result = 1 << ((data->pwm_auto_point_mapping[nr] & 3) - temp_start);
+        result = 1 << ((data->pwm_auto_point_mapping[nr] & 3) -
+                       data->temp_start);
 
         return sprintf(buf, "%d\n", result);
 }
@@ -1631,7 +1716,6 @@ static ssize_t store_pwm_auto_point_channel(struct device *dev,
 {
         struct f71882fg_data *data = dev_get_drvdata(dev);
         int nr = to_sensor_dev_attr_2(devattr)->index;
-        int temp_start = (data->type == f8000) ? 0 : 1;
         long val = simple_strtol(buf, NULL, 10);
 
         switch (val) {
@@ -1647,7 +1731,7 @@ static ssize_t store_pwm_auto_point_channel(struct device *dev,
         default:
                 return -EINVAL;
         }
-        val += temp_start;
+        val += data->temp_start;
         mutex_lock(&data->update_lock);
         data->pwm_auto_point_mapping[nr] =
                 f71882fg_read8(data, F71882FG_REG_POINT_MAPPING(nr));
@@ -1723,6 +1807,8 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 
         data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
         data->type = sio_data->type;
+        data->temp_start =
+            (data->type == f71858fg || data->type == f8000) ? 0 : 1;
         mutex_init(&data->update_lock);
         platform_set_drvdata(pdev, data);
 
@@ -1745,6 +1831,20 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 
         if (start_reg & 0x01) {
                 switch (data->type) {
+                case f71858fg:
+                        data->temp_config =
+                                f71882fg_read8(data, F71882FG_REG_TEMP_CONFIG);
+                        if (data->temp_config & 0x10)
+                                /* The f71858fg temperature alarms behave as
+                                   the f8000 alarms in this mode */
+                                err = f71882fg_create_sysfs_files(pdev,
+                                        f8000_in_temp_attr,
+                                        ARRAY_SIZE(f8000_in_temp_attr));
+                        else
+                                err = f71882fg_create_sysfs_files(pdev,
+                                        f71858fg_in_temp_attr,
+                                        ARRAY_SIZE(f71858fg_in_temp_attr));
+                        break;
                 case f71882fg:
                         err = f71882fg_create_sysfs_files(pdev,
                                         f71882fg_in_temp_attr,
@@ -1773,6 +1873,12 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
 
                 /* Sanity check the pwm settings */
                 switch (data->type) {
+                case f71858fg:
+                        err = 0;
+                        for (i = 0; i < nr_fans; i++)
+                                if (((data->pwm_enable >> (i * 2)) & 3) == 3)
+                                        err = 1;
+                        break;
                 case f71862fg:
                         err = (data->pwm_enable & 0x15) != 0x15;
                         break;
@@ -1806,6 +1912,13 @@ static int __devinit f71882fg_probe(struct platform_device *pdev)
                         err = f71882fg_create_sysfs_files(pdev,
                                         f71882fg_fan_attr,
                                         ARRAY_SIZE(f71882fg_fan_attr));
+                        if (err)
+                                goto exit_unregister_sysfs;
+                        /* fall through! */
+                case f71858fg:
+                        err = f71882fg_create_sysfs_files(pdev,
+                                        f71882fg_f71858fg_fan_attr,
+                                        ARRAY_SIZE(f71882fg_f71858fg_fan_attr));
                         break;
                 case f8000:
                         err = f71882fg_create_sysfs_files(pdev,
@@ -1890,6 +2003,9 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
 
         devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
         switch (devid) {
+        case SIO_F71858_ID:
+                sio_data->type = f71858fg;
+                break;
         case SIO_F71862_ID:
                 sio_data->type = f71862fg;
                 break;
@@ -1904,7 +2020,11 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address,
                 goto exit;
         }
 
-        superio_select(sioaddr, SIO_F71882FG_LD_HWM);
+        if (sio_data->type == f71858fg)
+                superio_select(sioaddr, SIO_F71858FG_LD_HWM);
+        else
+                superio_select(sioaddr, SIO_F71882FG_LD_HWM);
+
         if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
                 printk(KERN_WARNING DRVNAME ": Device not activated\n");
                 goto exit;