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hwmon/smsc47m1: Add support for the LPC47M292
The new SMSC LPC47M292 Super-I/O chip is a bit different from the previous ones, it supports a 3rd fan, but unfortunately the pin configuration registers are different. Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Jean Delvare
Jean Delvare
parent
ce7ee4e80a
commit
8eccbb6fb9
3 changed files with 139 additions and 41 deletions
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@ -14,6 +14,10 @@ Supported chips:
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http://www.smsc.com/main/datasheets/47m14x.pdf
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http://www.smsc.com/main/tools/discontinued/47m15x.pdf
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http://www.smsc.com/main/datasheets/47m192.pdf
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* SMSC LPC47M292
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Addresses scanned: none, address read from Super I/O config space
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Prefix: 'smsc47m2'
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Datasheet: Not public
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* SMSC LPC47M997
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Addresses scanned: none, address read from Super I/O config space
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Prefix: 'smsc47m1'
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@ -32,9 +36,10 @@ Description
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The Standard Microsystems Corporation (SMSC) 47M1xx Super I/O chips
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contain monitoring and PWM control circuitry for two fans.
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The 47M15x and 47M192 chips contain a full 'hardware monitoring block'
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in addition to the fan monitoring and control. The hardware monitoring
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block is not supported by the driver.
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The LPC47M15x, LPC47M192 and LPC47M292 chips contain a full 'hardware
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monitoring block' in addition to the fan monitoring and control. The
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hardware monitoring block is not supported by this driver, use the
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smsc47m192 driver for that.
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No documentation is available for the 47M997, but it has the same device
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ID as the 47M15x and 47M192 chips and seems to be compatible.
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@ -422,11 +422,12 @@ config SENSORS_SMSC47M1
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If you say yes here you get support for the integrated fan
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monitoring and control capabilities of the SMSC LPC47B27x,
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LPC47M10x, LPC47M112, LPC47M13x, LPC47M14x, LPC47M15x,
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LPC47M192 and LPC47M997 chips.
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LPC47M192, LPC47M292 and LPC47M997 chips.
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The temperature and voltage sensor features of the LPC47M192
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and LPC47M997 are supported by another driver, select also
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"SMSC LPC47M192 and compatibles" below for those.
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The temperature and voltage sensor features of the LPC47M15x,
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LPC47M192, LPC47M292 and LPC47M997 are supported by another
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driver, select also "SMSC LPC47M192 and compatibles" below for
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those.
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This driver can also be built as a module. If so, the module
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will be called smsc47m1.
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@ -3,10 +3,11 @@
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for hardware monitoring
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Supports the SMSC LPC47B27x, LPC47M10x, LPC47M112, LPC47M13x,
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LPC47M14x, LPC47M15x, LPC47M192 and LPC47M997 Super-I/O chips.
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LPC47M14x, LPC47M15x, LPC47M192, LPC47M292 and LPC47M997
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Super-I/O chips.
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Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
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Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
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Copyright (C) 2004-2007 Jean Delvare <khali@linux-fr.org>
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Ported to Linux 2.6 by Gabriele Gorla <gorlik@yahoo.com>
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and Jean Delvare
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@ -40,6 +41,8 @@
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/* Address is autodetected, there is no default value */
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static unsigned short address;
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static u8 devid;
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enum chips { smsc47m1, smsc47m2 };
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/* Super-I/0 registers and commands */
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@ -87,10 +90,18 @@ superio_exit(void)
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#define SMSC47M1_REG_ALARM 0x04
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#define SMSC47M1_REG_TPIN(nr) (0x34 - (nr))
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#define SMSC47M1_REG_PPIN(nr) (0x36 - (nr))
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#define SMSC47M1_REG_PWM(nr) (0x56 + (nr))
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#define SMSC47M1_REG_FANDIV 0x58
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#define SMSC47M1_REG_FAN(nr) (0x59 + (nr))
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#define SMSC47M1_REG_FAN_PRELOAD(nr) (0x5B + (nr))
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static const u8 SMSC47M1_REG_FAN[3] = { 0x59, 0x5a, 0x6b };
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static const u8 SMSC47M1_REG_FAN_PRELOAD[3] = { 0x5b, 0x5c, 0x6c };
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static const u8 SMSC47M1_REG_PWM[3] = { 0x56, 0x57, 0x69 };
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#define SMSC47M2_REG_ALARM6 0x09
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#define SMSC47M2_REG_TPIN1 0x38
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#define SMSC47M2_REG_TPIN2 0x37
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#define SMSC47M2_REG_TPIN3 0x2d
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#define SMSC47M2_REG_PPIN3 0x2c
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#define SMSC47M2_REG_FANDIV3 0x6a
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#define MIN_FROM_REG(reg,div) ((reg)>=192 ? 0 : \
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983040/((192-(reg))*(div)))
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@ -103,17 +114,18 @@ superio_exit(void)
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struct smsc47m1_data {
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struct i2c_client client;
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enum chips type;
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struct class_device *class_dev;
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struct mutex lock;
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struct mutex update_lock;
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unsigned long last_updated; /* In jiffies */
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u8 fan[2]; /* Register value */
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u8 fan_preload[2]; /* Register value */
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u8 fan_div[2]; /* Register encoding, shifted right */
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u8 fan[3]; /* Register value */
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u8 fan_preload[3]; /* Register value */
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u8 fan_div[3]; /* Register encoding, shifted right */
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u8 alarms; /* Register encoding */
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u8 pwm[2]; /* Register value (bit 7 is enable) */
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u8 pwm[3]; /* Register value (bit 0 is disable) */
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};
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@ -200,7 +212,7 @@ static ssize_t set_fan_min(struct device *dev, const char *buf,
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}
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data->fan_preload[nr] = 192 - ((983040 + rpmdiv / 2) / rpmdiv);
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smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
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smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD[nr],
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data->fan_preload[nr]);
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mutex_unlock(&data->update_lock);
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@ -234,15 +246,26 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
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return -EINVAL;
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}
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tmp = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV) & 0x0F;
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tmp |= (data->fan_div[0] << 4) | (data->fan_div[1] << 6);
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smsc47m1_write_value(client, SMSC47M1_REG_FANDIV, tmp);
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switch (nr) {
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case 0:
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case 1:
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tmp = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV)
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& ~(0x03 << (4 + 2 * nr));
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tmp |= data->fan_div[nr] << (4 + 2 * nr);
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smsc47m1_write_value(client, SMSC47M1_REG_FANDIV, tmp);
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break;
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case 2:
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tmp = smsc47m1_read_value(client, SMSC47M2_REG_FANDIV3) & 0xCF;
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tmp |= data->fan_div[2] << 4;
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smsc47m1_write_value(client, SMSC47M2_REG_FANDIV3, tmp);
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break;
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}
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/* Preserve fan min */
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tmp = 192 - (old_div * (192 - data->fan_preload[nr])
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+ new_div / 2) / new_div;
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data->fan_preload[nr] = SENSORS_LIMIT(tmp, 0, 191);
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smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
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smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD[nr],
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data->fan_preload[nr]);
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mutex_unlock(&data->update_lock);
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@ -263,7 +286,7 @@ static ssize_t set_pwm(struct device *dev, const char *buf,
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mutex_lock(&data->update_lock);
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data->pwm[nr] &= 0x81; /* Preserve additional bits */
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data->pwm[nr] |= PWM_TO_REG(val);
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smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
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smsc47m1_write_value(client, SMSC47M1_REG_PWM[nr],
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data->pwm[nr]);
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mutex_unlock(&data->update_lock);
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@ -284,7 +307,7 @@ static ssize_t set_pwm_en(struct device *dev, const char *buf,
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mutex_lock(&data->update_lock);
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data->pwm[nr] &= 0xFE; /* preserve the other bits */
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data->pwm[nr] |= !val;
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smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
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smsc47m1_write_value(client, SMSC47M1_REG_PWM[nr],
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data->pwm[nr]);
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mutex_unlock(&data->update_lock);
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@ -345,6 +368,7 @@ static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
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fan_present(1);
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fan_present(2);
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fan_present(3);
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static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
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@ -358,11 +382,16 @@ static struct attribute *smsc47m1_attributes[] = {
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&dev_attr_fan2_input.attr,
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&dev_attr_fan2_min.attr,
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&dev_attr_fan2_div.attr,
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&dev_attr_fan3_input.attr,
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&dev_attr_fan3_min.attr,
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&dev_attr_fan3_div.attr,
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&dev_attr_pwm1.attr,
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&dev_attr_pwm1_enable.attr,
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&dev_attr_pwm2.attr,
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&dev_attr_pwm2_enable.attr,
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&dev_attr_pwm3.attr,
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&dev_attr_pwm3_enable.attr,
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&dev_attr_alarms.attr,
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NULL
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@ -377,7 +406,7 @@ static int __init smsc47m1_find(unsigned short *addr)
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u8 val;
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superio_enter();
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val = superio_inb(SUPERIO_REG_DEVID);
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devid = superio_inb(SUPERIO_REG_DEVID);
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/*
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* SMSC LPC47M10x/LPC47M112/LPC47M13x (device id 0x59), LPC47M14x
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@ -386,18 +415,29 @@ static int __init smsc47m1_find(unsigned short *addr)
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* can do much more besides (device id 0x60).
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* The LPC47M997 is undocumented, but seems to be compatible with
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* the LPC47M192, and has the same device id.
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* The LPC47M292 (device id 0x6B) is somewhat compatible, but it
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* supports a 3rd fan, and the pin configuration registers are
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* unfortunately different.
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*/
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if (val == 0x51)
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switch (devid) {
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case 0x51:
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printk(KERN_INFO "smsc47m1: Found SMSC LPC47B27x\n");
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else if (val == 0x59)
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break;
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case 0x59:
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printk(KERN_INFO "smsc47m1: Found SMSC "
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"LPC47M10x/LPC47M112/LPC47M13x\n");
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else if (val == 0x5F)
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break;
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case 0x5F:
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printk(KERN_INFO "smsc47m1: Found SMSC LPC47M14x\n");
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else if (val == 0x60)
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break;
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case 0x60:
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printk(KERN_INFO "smsc47m1: Found SMSC "
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"LPC47M15x/LPC47M192/LPC47M997\n");
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else {
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break;
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case 0x6B:
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printk(KERN_INFO "smsc47m1: Found SMSC LPC47M292\n");
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break;
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default:
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superio_exit();
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return -ENODEV;
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}
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@ -421,7 +461,7 @@ static int smsc47m1_detect(struct i2c_adapter *adapter)
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struct i2c_client *new_client;
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struct smsc47m1_data *data;
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int err = 0;
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int fan1, fan2, pwm1, pwm2;
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int fan1, fan2, fan3, pwm1, pwm2, pwm3;
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if (!request_region(address, SMSC_EXTENT, smsc47m1_driver.driver.name)) {
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dev_err(&adapter->dev, "Region 0x%x already in use!\n", address);
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@ -433,6 +473,7 @@ static int smsc47m1_detect(struct i2c_adapter *adapter)
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goto error_release;
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}
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data->type = devid == 0x6B ? smsc47m2 : smsc47m1;
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new_client = &data->client;
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i2c_set_clientdata(new_client, data);
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new_client->addr = address;
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@ -441,20 +482,35 @@ static int smsc47m1_detect(struct i2c_adapter *adapter)
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new_client->driver = &smsc47m1_driver;
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new_client->flags = 0;
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strlcpy(new_client->name, "smsc47m1", I2C_NAME_SIZE);
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strlcpy(new_client->name,
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data->type == smsc47m2 ? "smsc47m2" : "smsc47m1",
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I2C_NAME_SIZE);
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mutex_init(&data->update_lock);
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/* If no function is properly configured, there's no point in
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actually registering the chip. */
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fan1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(0)) & 0x05)
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== 0x05;
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fan2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(1)) & 0x05)
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== 0x05;
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pwm1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_PPIN(0)) & 0x05)
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== 0x04;
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pwm2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_PPIN(1)) & 0x05)
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== 0x04;
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if (!(fan1 || fan2 || pwm1 || pwm2)) {
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if (data->type == smsc47m2) {
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fan1 = (smsc47m1_read_value(new_client, SMSC47M2_REG_TPIN1)
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& 0x0d) == 0x09;
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fan2 = (smsc47m1_read_value(new_client, SMSC47M2_REG_TPIN2)
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& 0x0d) == 0x09;
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fan3 = (smsc47m1_read_value(new_client, SMSC47M2_REG_TPIN3)
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& 0x0d) == 0x0d;
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pwm3 = (smsc47m1_read_value(new_client, SMSC47M2_REG_PPIN3)
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& 0x0d) == 0x08;
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} else {
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fan1 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(0))
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& 0x05) == 0x05;
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fan2 = (smsc47m1_read_value(new_client, SMSC47M1_REG_TPIN(1))
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& 0x05) == 0x05;
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fan3 = 0;
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pwm3 = 0;
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}
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if (!(fan1 || fan2 || fan3 || pwm1 || pwm2 || pwm3)) {
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dev_warn(&adapter->dev, "Device at 0x%x is not configured, "
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"will not use\n", new_client->addr);
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err = -ENODEV;
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@ -497,6 +553,18 @@ static int smsc47m1_detect(struct i2c_adapter *adapter)
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dev_dbg(&new_client->dev, "Fan 2 not enabled by hardware, "
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"skipping\n");
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if (fan3) {
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if ((err = device_create_file(&new_client->dev,
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&dev_attr_fan3_input))
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|| (err = device_create_file(&new_client->dev,
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&dev_attr_fan3_min))
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|| (err = device_create_file(&new_client->dev,
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&dev_attr_fan3_div)))
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goto error_remove_files;
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} else
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dev_dbg(&new_client->dev, "Fan 3 not enabled by hardware, "
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"skipping\n");
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if (pwm1) {
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if ((err = device_create_file(&new_client->dev,
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&dev_attr_pwm1))
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@ -506,6 +574,7 @@ static int smsc47m1_detect(struct i2c_adapter *adapter)
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} else
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dev_dbg(&new_client->dev, "PWM 1 not enabled by hardware, "
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"skipping\n");
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if (pwm2) {
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if ((err = device_create_file(&new_client->dev,
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&dev_attr_pwm2))
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@ -516,6 +585,16 @@ static int smsc47m1_detect(struct i2c_adapter *adapter)
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dev_dbg(&new_client->dev, "PWM 2 not enabled by hardware, "
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"skipping\n");
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if (pwm3) {
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if ((err = device_create_file(&new_client->dev,
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&dev_attr_pwm3))
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|| (err = device_create_file(&new_client->dev,
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&dev_attr_pwm3_enable)))
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goto error_remove_files;
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} else
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dev_dbg(&new_client->dev, "PWM 3 not enabled by hardware, "
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"skipping\n");
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if ((err = device_create_file(&new_client->dev, &dev_attr_alarms)))
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goto error_remove_files;
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@ -580,15 +659,16 @@ static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
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mutex_lock(&data->update_lock);
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if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) {
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int i;
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int i, fan_nr;
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fan_nr = data->type == smsc47m2 ? 3 : 2;
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for (i = 0; i < 2; i++) {
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for (i = 0; i < fan_nr; i++) {
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data->fan[i] = smsc47m1_read_value(client,
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SMSC47M1_REG_FAN(i));
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SMSC47M1_REG_FAN[i]);
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data->fan_preload[i] = smsc47m1_read_value(client,
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SMSC47M1_REG_FAN_PRELOAD(i));
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SMSC47M1_REG_FAN_PRELOAD[i]);
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data->pwm[i] = smsc47m1_read_value(client,
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SMSC47M1_REG_PWM(i));
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SMSC47M1_REG_PWM[i]);
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}
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i = smsc47m1_read_value(client, SMSC47M1_REG_FANDIV);
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||||
|
|
@ -601,6 +681,18 @@ static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
|
|||
if (data->alarms)
|
||||
smsc47m1_write_value(client, SMSC47M1_REG_ALARM, 0xC0);
|
||||
|
||||
if (fan_nr >= 3) {
|
||||
data->fan_div[2] = (smsc47m1_read_value(client,
|
||||
SMSC47M2_REG_FANDIV3) >> 4) & 0x03;
|
||||
data->alarms |= (smsc47m1_read_value(client,
|
||||
SMSC47M2_REG_ALARM6) & 0x40) >> 4;
|
||||
/* Clear alarm if needed */
|
||||
if (data->alarms & 0x04)
|
||||
smsc47m1_write_value(client,
|
||||
SMSC47M2_REG_ALARM6,
|
||||
0x40);
|
||||
}
|
||||
|
||||
data->last_updated = jiffies;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue