/*
- w83627ehf - Driver for the hardware monitoring functionality of
- the Winbond W83627EHF Super-I/O chip
- Copyright (C) 2005-2011 Jean Delvare <khali@linux-fr.org>
- Copyright (C) 2006 Yuan Mu (Winbond),
- Rudolf Marek <r.marek@assembler.cz>
- David Hubbard <david.c.hubbard@gmail.com>
- Daniel J Blueman <daniel.blueman@gmail.com>
- Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
-
- Shamelessly ripped from the w83627hf driver
- Copyright (C) 2003 Mark Studebaker
-
- Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help
- in testing and debugging this driver.
-
- This driver also supports the W83627EHG, which is the lead-free
- version of the W83627EHF.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-
- Supports the following chips:
-
- Chip #vin #fan #pwm #temp chip IDs man ID
- w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3
- 0x8860 0xa1
- w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
- w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
- w83627uhg 8 2 2 3 0xa230 0xc1 0x5ca3
- w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
- w83667hg-b 9 5 3 4 0xb350 0xc1 0x5ca3
- nct6775f 9 4 3 9 0xb470 0xc1 0x5ca3
- nct6776f 9 5 3 9 0xC330 0xc1 0x5ca3
-*/
+ * w83627ehf - Driver for the hardware monitoring functionality of
+ * the Winbond W83627EHF Super-I/O chip
+ * Copyright (C) 2005-2011 Jean Delvare <khali@linux-fr.org>
+ * Copyright (C) 2006 Yuan Mu (Winbond),
+ * Rudolf Marek <r.marek@assembler.cz>
+ * David Hubbard <david.c.hubbard@gmail.com>
+ * Daniel J Blueman <daniel.blueman@gmail.com>
+ * Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
+ *
+ * Shamelessly ripped from the w83627hf driver
+ * Copyright (C) 2003 Mark Studebaker
+ *
+ * Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help
+ * in testing and debugging this driver.
+ *
+ * This driver also supports the W83627EHG, which is the lead-free
+ * version of the W83627EHF.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Supports the following chips:
+ *
+ * Chip #vin #fan #pwm #temp chip IDs man ID
+ * w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3
+ * 0x8860 0xa1
+ * w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
+ * w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
+ * w83627uhg 8 2 2 3 0xa230 0xc1 0x5ca3
+ * w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
+ * w83667hg-b 9 5 3 4 0xb350 0xc1 0x5ca3
+ * nct6775f 9 4 3 9 0xb470 0xc1 0x5ca3
+ * nct6776f 9 5 3 9 0xC330 0xc1 0x5ca3
+ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#define W83627EHF_REG_BANK 0x4E
#define W83627EHF_REG_CONFIG 0x40
-/* Not currently used:
+/*
+ * Not currently used:
* REG_MAN_ID has the value 0x5ca3 for all supported chips.
* REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
* REG_MAN_ID is at port 0x4f
- * REG_CHIP_ID is at port 0x58 */
+ * REG_CHIP_ID is at port 0x58
+ */
static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 };
static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c };
return 1 << reg;
}
-/* Some of the voltage inputs have internal scaling, the tables below
- * contain 8 (the ADC LSB in mV) * scaling factor * 100 */
+/*
+ * Some of the voltage inputs have internal scaling, the tables below
+ * contain 8 (the ADC LSB in mV) * scaling factor * 100
+ */
static const u16 scale_in_common[10] = {
800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800
};
u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
u8 pwm_enable[4]; /* 1->manual
- 2->thermal cruise mode (also called SmartFan I)
- 3->fan speed cruise mode
- 4->variable thermal cruise (also called
- SmartFan III)
- 5->enhanced variable thermal cruise (also called
- SmartFan IV) */
+ * 2->thermal cruise mode (also called SmartFan I)
+ * 3->fan speed cruise mode
+ * 4->variable thermal cruise (also called
+ * SmartFan III)
+ * 5->enhanced variable thermal cruise (also called
+ * SmartFan IV)
+ */
u8 pwm_enable_orig[4]; /* original value of pwm_enable */
u8 pwm_num; /* number of pwm */
u8 pwm[4];
data->fan_min[i] = w83627ehf_read_value(data,
data->REG_FAN_MIN[i]);
- /* If we failed to measure the fan speed and clock
- divider can be increased, let's try that for next
- time */
+ /*
+ * If we failed to measure the fan speed and clock
+ * divider can be increased, let's try that for next
+ * time
+ */
if (data->has_fan_div
&& (reg >= 0xff || (sio_data->kind == nct6775
&& reg == 0x00))
new_div = data->fan_div[nr]; /* No change */
dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
} else if ((reg = 1350000U / val) >= 128 * 255) {
- /* Speed below this value cannot possibly be represented,
- even with the highest divider (128) */
+ /*
+ * Speed below this value cannot possibly be represented,
+ * even with the highest divider (128)
+ */
data->fan_min[nr] = 254;
new_div = 7; /* 128 == (1 << 7) */
dev_warn(dev, "fan%u low limit %lu below minimum %u, set to "
"minimum\n", nr + 1, val,
data->fan_from_reg_min(254, 7));
} else if (!reg) {
- /* Speed above this value cannot possibly be represented,
- even with the lowest divider (1) */
+ /*
+ * Speed above this value cannot possibly be represented,
+ * even with the lowest divider (1)
+ */
data->fan_min[nr] = 1;
new_div = 0; /* 1 == (1 << 0) */
dev_warn(dev, "fan%u low limit %lu above maximum %u, set to "
"maximum\n", nr + 1, val,
data->fan_from_reg_min(1, 0));
} else {
- /* Automatically pick the best divider, i.e. the one such
- that the min limit will correspond to a register value
- in the 96..192 range */
+ /*
+ * Automatically pick the best divider, i.e. the one such
+ * that the min limit will correspond to a register value
+ * in the 96..192 range
+ */
new_div = 0;
while (reg > 192 && new_div < 7) {
reg >>= 1;
data->fan_min[nr] = reg;
}
- /* Write both the fan clock divider (if it changed) and the new
- fan min (unconditionally) */
+ /*
+ * Write both the fan clock divider (if it changed) and the new
+ * fan min (unconditionally)
+ */
if (new_div != data->fan_div[nr]) {
dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
nr + 1, div_from_reg(data->fan_div[nr]),
static void w83627ehf_device_remove_files(struct device *dev)
{
- /* some entries in the following arrays may not have been used in
- * device_create_file(), but device_remove_file() will ignore them */
+ /*
+ * some entries in the following arrays may not have been used in
+ * device_create_file(), but device_remove_file() will ignore them
+ */
int i;
struct w83627ehf_data *data = dev_get_drvdata(dev);
/* Read VID value */
if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b ||
sio_data->kind == nct6775 || sio_data->kind == nct6776) {
- /* W83667HG has different pins for VID input and output, so
- we can get the VID input values directly at logical device D
- 0xe3. */
+ /*
+ * W83667HG has different pins for VID input and output, so
+ * we can get the VID input values directly at logical device D
+ * 0xe3.
+ */
superio_select(sio_data->sioreg, W83667HG_LD_VID);
data->vid = superio_inb(sio_data->sioreg, 0xe3);
err = device_create_file(dev, &dev_attr_cpu0_vid);
} else if (sio_data->kind != w83627uhg) {
superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
- /* Set VID input sensibility if needed. In theory the
- BIOS should have set it, but in practice it's not
- always the case. We only do it for the W83627EHF/EHG
- because the W83627DHG is more complex in this
- respect. */
+ /*
+ * Set VID input sensibility if needed. In theory the
+ * BIOS should have set it, but in practice it's not
+ * always the case. We only do it for the W83627EHF/EHG
+ * because the W83627DHG is more complex in this
+ * respect.
+ */
if (sio_data->kind == w83627ehf) {
en_vrm10 = superio_inb(sio_data->sioreg,
SIO_REG_EN_VRM10);
return 0;
}
-/* when Super-I/O functions move to a separate file, the Super-I/O
+/*
+ * when Super-I/O functions move to a separate file, the Super-I/O
* bus will manage the lifetime of the device and this module will only keep
* track of the w83627ehf driver. But since we platform_device_alloc(), we
- * must keep track of the device */
+ * must keep track of the device
+ */
static struct platform_device *pdev;
static int __init sensors_w83627ehf_init(void)
struct resource res;
struct w83627ehf_sio_data sio_data;
- /* initialize sio_data->kind and sio_data->sioreg.
+ /*
+ * initialize sio_data->kind and sio_data->sioreg.
*
* when Super-I/O functions move to a separate file, the Super-I/O
* driver will probe 0x2e and 0x4e and auto-detect the presence of a
- * w83627ehf hardware monitor, and call probe() */
+ * w83627ehf hardware monitor, and call probe()
+ */
if (w83627ehf_find(0x2e, &address, &sio_data) &&
w83627ehf_find(0x4e, &address, &sio_data))
return -ENODEV;
projects / karo-tx-linux.git / commitdiff