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Diffstat (limited to 'drivers/hwmon/w83781d.c')
| -rw-r--r-- | drivers/hwmon/w83781d.c | 1632 |
1 files changed, 1632 insertions, 0 deletions
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c new file mode 100644 index 000000000000..0bb131ce09eb --- /dev/null +++ b/drivers/hwmon/w83781d.c @@ -0,0 +1,1632 @@ +/* + w83781d.c - Part of lm_sensors, Linux kernel modules for hardware + monitoring + Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>, + Philip Edelbrock <phil@netroedge.com>, + and Mark Studebaker <mdsxyz123@yahoo.com> + + 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 following chips: + + Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA + as99127f 7 3 0 3 0x31 0x12c3 yes no + as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no + w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes + w83627hf 9 3 2 3 0x21 0x5ca3 yes yes(LPC) + w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes + w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no + +*/ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/i2c.h> +#include <linux/i2c-sensor.h> +#include <linux/i2c-vid.h> +#include <asm/io.h> +#include "lm75.h" + +/* Addresses to scan */ +static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, + 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, + 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; +static unsigned int normal_isa[] = { 0x0290, I2C_CLIENT_ISA_END }; + +/* Insmod parameters */ +SENSORS_INSMOD_5(w83781d, w83782d, w83783s, w83627hf, as99127f); +I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " + "{bus, clientaddr, subclientaddr1, subclientaddr2}"); + +static int init = 1; +module_param(init, bool, 0); +MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization"); + +/* Constants specified below */ + +/* Length of ISA address segment */ +#define W83781D_EXTENT 8 + +/* Where are the ISA address/data registers relative to the base address */ +#define W83781D_ADDR_REG_OFFSET 5 +#define W83781D_DATA_REG_OFFSET 6 + +/* The W83781D registers */ +/* The W83782D registers for nr=7,8 are in bank 5 */ +#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \ + (0x554 + (((nr) - 7) * 2))) +#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \ + (0x555 + (((nr) - 7) * 2))) +#define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \ + (0x550 + (nr) - 7)) + +#define W83781D_REG_FAN_MIN(nr) (0x3a + (nr)) +#define W83781D_REG_FAN(nr) (0x27 + (nr)) + +#define W83781D_REG_BANK 0x4E +#define W83781D_REG_TEMP2_CONFIG 0x152 +#define W83781D_REG_TEMP3_CONFIG 0x252 +#define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \ + ((nr == 2) ? (0x0150) : \ + (0x27))) +#define W83781D_REG_TEMP_HYST(nr) ((nr == 3) ? (0x253) : \ + ((nr == 2) ? (0x153) : \ + (0x3A))) +#define W83781D_REG_TEMP_OVER(nr) ((nr == 3) ? (0x255) : \ + ((nr == 2) ? (0x155) : \ + (0x39))) + +#define W83781D_REG_CONFIG 0x40 +#define W83781D_REG_ALARM1 0x41 +#define W83781D_REG_ALARM2 0x42 +#define W83781D_REG_ALARM3 0x450 /* not on W83781D */ + +#define W83781D_REG_IRQ 0x4C +#define W83781D_REG_BEEP_CONFIG 0x4D +#define W83781D_REG_BEEP_INTS1 0x56 +#define W83781D_REG_BEEP_INTS2 0x57 +#define W83781D_REG_BEEP_INTS3 0x453 /* not on W83781D */ + +#define W83781D_REG_VID_FANDIV 0x47 + +#define W83781D_REG_CHIPID 0x49 +#define W83781D_REG_WCHIPID 0x58 +#define W83781D_REG_CHIPMAN 0x4F +#define W83781D_REG_PIN 0x4B + +/* 782D/783S only */ +#define W83781D_REG_VBAT 0x5D + +/* PWM 782D (1-4) and 783S (1-2) only */ +#define W83781D_REG_PWM1 0x5B /* 782d and 783s/627hf datasheets disagree */ + /* on which is which; */ +#define W83781D_REG_PWM2 0x5A /* We follow the 782d convention here, */ + /* However 782d is probably wrong. */ +#define W83781D_REG_PWM3 0x5E +#define W83781D_REG_PWM4 0x5F +#define W83781D_REG_PWMCLK12 0x5C +#define W83781D_REG_PWMCLK34 0x45C +static const u8 regpwm[] = { W83781D_REG_PWM1, W83781D_REG_PWM2, + W83781D_REG_PWM3, W83781D_REG_PWM4 +}; + +#define W83781D_REG_PWM(nr) (regpwm[(nr) - 1]) + +#define W83781D_REG_I2C_ADDR 0x48 +#define W83781D_REG_I2C_SUBADDR 0x4A + +/* The following are undocumented in the data sheets however we + received the information in an email from Winbond tech support */ +/* Sensor selection - not on 781d */ +#define W83781D_REG_SCFG1 0x5D +static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 }; + +#define W83781D_REG_SCFG2 0x59 +static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 }; + +#define W83781D_DEFAULT_BETA 3435 + +/* RT Table registers */ +#define W83781D_REG_RT_IDX 0x50 +#define W83781D_REG_RT_VAL 0x51 + +/* Conversions. Rounding and limit checking is only done on the TO_REG + variants. Note that you should be a bit careful with which arguments + these macros are called: arguments may be evaluated more than once. + Fixing this is just not worth it. */ +#define IN_TO_REG(val) (SENSORS_LIMIT((((val) * 10 + 8)/16),0,255)) +#define IN_FROM_REG(val) (((val) * 16) / 10) + +static inline u8 +FAN_TO_REG(long rpm, int div) +{ + if (rpm == 0) + return 255; + rpm = SENSORS_LIMIT(rpm, 1, 1000000); + return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); +} + +#define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \ + ((val) == 255 ? 0 : \ + 1350000 / ((val) * (div)))) + +#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ + : (val)) / 1000, 0, 0xff)) +#define TEMP_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) + +#define PWM_FROM_REG(val) (val) +#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255)) +#define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \ + (val) ^ 0x7fff : (val)) +#define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \ + (~(val)) & 0x7fff : (val) & 0xffffff) + +#define BEEP_ENABLE_TO_REG(val) ((val) ? 1 : 0) +#define BEEP_ENABLE_FROM_REG(val) ((val) ? 1 : 0) + +#define DIV_FROM_REG(val) (1 << (val)) + +static inline u8 +DIV_TO_REG(long val, enum chips type) +{ + int i; + val = SENSORS_LIMIT(val, 1, + ((type == w83781d + || type == as99127f) ? 8 : 128)) >> 1; + for (i = 0; i < 7; i++) { + if (val == 0) + break; + val >>= 1; + } + return ((u8) i); +} + +/* There are some complications in a module like this. First off, W83781D chips + may be both present on the SMBus and the ISA bus, and we have to handle + those cases separately at some places. Second, there might be several + W83781D chips available (well, actually, that is probably never done; but + it is a clean illustration of how to handle a case like that). Finally, + a specific chip may be attached to *both* ISA and SMBus, and we would + not like to detect it double. Fortunately, in the case of the W83781D at + least, a register tells us what SMBus address we are on, so that helps + a bit - except if there could be more than one SMBus. Groan. No solution + for this yet. */ + +/* This module may seem overly long and complicated. In fact, it is not so + bad. Quite a lot of bookkeeping is done. A real driver can often cut + some corners. */ + +/* For each registered W83781D, we need to keep some data in memory. That + data is pointed to by w83781d_list[NR]->data. The structure itself is + dynamically allocated, at the same time when a new w83781d client is + allocated. */ +struct w83781d_data { + struct i2c_client client; + struct semaphore lock; + enum chips type; + + struct semaphore update_lock; + char valid; /* !=0 if following fields are valid */ + unsigned long last_updated; /* In jiffies */ + + struct i2c_client *lm75[2]; /* for secondary I2C addresses */ + /* array of 2 pointers to subclients */ + + u8 in[9]; /* Register value - 8 & 9 for 782D only */ + u8 in_max[9]; /* Register value - 8 & 9 for 782D only */ + u8 in_min[9]; /* Register value - 8 & 9 for 782D only */ + u8 fan[3]; /* Register value */ + u8 fan_min[3]; /* Register value */ + u8 temp; + u8 temp_max; /* Register value */ + u8 temp_max_hyst; /* Register value */ + u16 temp_add[2]; /* Register value */ + u16 temp_max_add[2]; /* Register value */ + u16 temp_max_hyst_add[2]; /* Register value */ + u8 fan_div[3]; /* Register encoding, shifted right */ + u8 vid; /* Register encoding, combined */ + u32 alarms; /* Register encoding, combined */ + u32 beep_mask; /* Register encoding, combined */ + u8 beep_enable; /* Boolean */ + u8 pwm[4]; /* Register value */ + u8 pwmenable[4]; /* Boolean */ + u16 sens[3]; /* 782D/783S only. + 1 = pentium diode; 2 = 3904 diode; + 3000-5000 = thermistor beta. + Default = 3435. + Other Betas unimplemented */ + u8 vrm; +}; + +static int w83781d_attach_adapter(struct i2c_adapter *adapter); +static int w83781d_detect(struct i2c_adapter *adapter, int address, int kind); +static int w83781d_detach_client(struct i2c_client *client); + +static int w83781d_read_value(struct i2c_client *client, u16 register); +static int w83781d_write_value(struct i2c_client *client, u16 register, + u16 value); +static struct w83781d_data *w83781d_update_device(struct device *dev); +static void w83781d_init_client(struct i2c_client *client); + +static struct i2c_driver w83781d_driver = { + .owner = THIS_MODULE, + .name = "w83781d", + .id = I2C_DRIVERID_W83781D, + .flags = I2C_DF_NOTIFY, + .attach_adapter = w83781d_attach_adapter, + .detach_client = w83781d_detach_client, +}; + +/* following are the sysfs callback functions */ +#define show_in_reg(reg) \ +static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ +{ \ + struct w83781d_data *data = w83781d_update_device(dev); \ + return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr] * 10)); \ +} +show_in_reg(in); +show_in_reg(in_min); +show_in_reg(in_max); + +#define store_in_reg(REG, reg) \ +static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \ +{ \ + struct i2c_client *client = to_i2c_client(dev); \ + struct w83781d_data *data = i2c_get_clientdata(client); \ + u32 val; \ + \ + val = simple_strtoul(buf, NULL, 10) / 10; \ + \ + down(&data->update_lock); \ + data->in_##reg[nr] = IN_TO_REG(val); \ + w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \ + \ + up(&data->update_lock); \ + return count; \ +} +store_in_reg(MIN, min); +store_in_reg(MAX, max); + +#define sysfs_in_offset(offset) \ +static ssize_t \ +show_regs_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_in(dev, buf, offset); \ +} \ +static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL); + +#define sysfs_in_reg_offset(reg, offset) \ +static ssize_t show_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_in_##reg (dev, buf, offset); \ +} \ +static ssize_t store_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + return store_in_##reg (dev, buf, count, offset); \ +} \ +static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_in_##reg##offset, store_regs_in_##reg##offset); + +#define sysfs_in_offsets(offset) \ +sysfs_in_offset(offset); \ +sysfs_in_reg_offset(min, offset); \ +sysfs_in_reg_offset(max, offset); + +sysfs_in_offsets(0); +sysfs_in_offsets(1); +sysfs_in_offsets(2); +sysfs_in_offsets(3); +sysfs_in_offsets(4); +sysfs_in_offsets(5); +sysfs_in_offsets(6); +sysfs_in_offsets(7); +sysfs_in_offsets(8); + +#define device_create_file_in(client, offset) \ +do { \ +device_create_file(&client->dev, &dev_attr_in##offset##_input); \ +device_create_file(&client->dev, &dev_attr_in##offset##_min); \ +device_create_file(&client->dev, &dev_attr_in##offset##_max); \ +} while (0) + +#define show_fan_reg(reg) \ +static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ +{ \ + struct w83781d_data *data = w83781d_update_device(dev); \ + return sprintf(buf,"%ld\n", \ + FAN_FROM_REG(data->reg[nr-1], (long)DIV_FROM_REG(data->fan_div[nr-1]))); \ +} +show_fan_reg(fan); +show_fan_reg(fan_min); + +static ssize_t +store_fan_min(struct device *dev, const char *buf, size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83781d_data *data = i2c_get_clientdata(client); + u32 val; + + val = simple_strtoul(buf, NULL, 10); + + down(&data->update_lock); + data->fan_min[nr - 1] = + FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1])); + w83781d_write_value(client, W83781D_REG_FAN_MIN(nr), + data->fan_min[nr - 1]); + + up(&data->update_lock); + return count; +} + +#define sysfs_fan_offset(offset) \ +static ssize_t show_regs_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_fan(dev, buf, offset); \ +} \ +static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL); + +#define sysfs_fan_min_offset(offset) \ +static ssize_t show_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_fan_min(dev, buf, offset); \ +} \ +static ssize_t store_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + return store_fan_min(dev, buf, count, offset); \ +} \ +static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, show_regs_fan_min##offset, store_regs_fan_min##offset); + +sysfs_fan_offset(1); +sysfs_fan_min_offset(1); +sysfs_fan_offset(2); +sysfs_fan_min_offset(2); +sysfs_fan_offset(3); +sysfs_fan_min_offset(3); + +#define device_create_file_fan(client, offset) \ +do { \ +device_create_file(&client->dev, &dev_attr_fan##offset##_input); \ +device_create_file(&client->dev, &dev_attr_fan##offset##_min); \ +} while (0) + +#define show_temp_reg(reg) \ +static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ +{ \ + struct w83781d_data *data = w83781d_update_device(dev); \ + if (nr >= 2) { /* TEMP2 and TEMP3 */ \ + return sprintf(buf,"%d\n", \ + LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \ + } else { /* TEMP1 */ \ + return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \ + } \ +} +show_temp_reg(temp); +show_temp_reg(temp_max); +show_temp_reg(temp_max_hyst); + +#define store_temp_reg(REG, reg) \ +static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \ +{ \ + struct i2c_client *client = to_i2c_client(dev); \ + struct w83781d_data *data = i2c_get_clientdata(client); \ + s32 val; \ + \ + val = simple_strtol(buf, NULL, 10); \ + \ + down(&data->update_lock); \ + \ + if (nr >= 2) { /* TEMP2 and TEMP3 */ \ + data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \ + w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \ + data->temp_##reg##_add[nr-2]); \ + } else { /* TEMP1 */ \ + data->temp_##reg = TEMP_TO_REG(val); \ + w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \ + data->temp_##reg); \ + } \ + \ + up(&data->update_lock); \ + return count; \ +} +store_temp_reg(OVER, max); +store_temp_reg(HYST, max_hyst); + +#define sysfs_temp_offset(offset) \ +static ssize_t \ +show_regs_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_temp(dev, buf, offset); \ +} \ +static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL); + +#define sysfs_temp_reg_offset(reg, offset) \ +static ssize_t show_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_temp_##reg (dev, buf, offset); \ +} \ +static ssize_t store_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + return store_temp_##reg (dev, buf, count, offset); \ +} \ +static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_temp_##reg##offset, store_regs_temp_##reg##offset); + +#define sysfs_temp_offsets(offset) \ +sysfs_temp_offset(offset); \ +sysfs_temp_reg_offset(max, offset); \ +sysfs_temp_reg_offset(max_hyst, offset); + +sysfs_temp_offsets(1); +sysfs_temp_offsets(2); +sysfs_temp_offsets(3); + +#define device_create_file_temp(client, offset) \ +do { \ +device_create_file(&client->dev, &dev_attr_temp##offset##_input); \ +device_create_file(&client->dev, &dev_attr_temp##offset##_max); \ +device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \ +} while (0) + +static ssize_t +show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); +} + +static +DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); +#define device_create_file_vid(client) \ +device_create_file(&client->dev, &dev_attr_cpu0_vid); +static ssize_t +show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%ld\n", (long) data->vrm); +} + +static ssize_t +store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83781d_data *data = i2c_get_clientdata(client); + u32 val; + + val = simple_strtoul(buf, NULL, 10); + data->vrm = val; + + return count; +} + +static +DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); +#define device_create_file_vrm(client) \ +device_create_file(&client->dev, &dev_attr_vrm); +static ssize_t +show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%u\n", data->alarms); +} + +static +DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); +#define device_create_file_alarms(client) \ +device_create_file(&client->dev, &dev_attr_alarms); +static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%ld\n", + (long)BEEP_MASK_FROM_REG(data->beep_mask, data->type)); +} +static ssize_t show_beep_enable (struct device *dev, struct device_attribute *attr, char *buf) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%ld\n", + (long)BEEP_ENABLE_FROM_REG(data->beep_enable)); +} + +#define BEEP_ENABLE 0 /* Store beep_enable */ +#define BEEP_MASK 1 /* Store beep_mask */ + +static ssize_t +store_beep_reg(struct device *dev, const char *buf, size_t count, + int update_mask) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83781d_data *data = i2c_get_clientdata(client); + u32 val, val2; + + val = simple_strtoul(buf, NULL, 10); + + down(&data->update_lock); + + if (update_mask == BEEP_MASK) { /* We are storing beep_mask */ + data->beep_mask = BEEP_MASK_TO_REG(val, data->type); + w83781d_write_value(client, W83781D_REG_BEEP_INTS1, + data->beep_mask & 0xff); + + if ((data->type != w83781d) && (data->type != as99127f)) { + w83781d_write_value(client, W83781D_REG_BEEP_INTS3, + ((data->beep_mask) >> 16) & 0xff); + } + + val2 = (data->beep_mask >> 8) & 0x7f; + } else { /* We are storing beep_enable */ + val2 = w83781d_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f; + data->beep_enable = BEEP_ENABLE_TO_REG(val); + } + + w83781d_write_value(client, W83781D_REG_BEEP_INTS2, + val2 | data->beep_enable << 7); + + up(&data->update_lock); + return count; +} + +#define sysfs_beep(REG, reg) \ +static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_beep_##reg(dev, attr, buf); \ +} \ +static ssize_t store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + return store_beep_reg(dev, buf, count, BEEP_##REG); \ +} \ +static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, show_regs_beep_##reg, store_regs_beep_##reg); + +sysfs_beep(ENABLE, enable); +sysfs_beep(MASK, mask); + +#define device_create_file_beep(client) \ +do { \ +device_create_file(&client->dev, &dev_attr_beep_enable); \ +device_create_file(&client->dev, &dev_attr_beep_mask); \ +} while (0) + +static ssize_t +show_fan_div_reg(struct device *dev, char *buf, int nr) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%ld\n", + (long) DIV_FROM_REG(data->fan_div[nr - 1])); +} + +/* Note: we save and restore the fan minimum here, because its value is + determined in part by the fan divisor. This follows the principle of + least suprise; the user doesn't expect the fan minimum to change just + because the divisor changed. */ +static ssize_t +store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83781d_data *data = i2c_get_clientdata(client); + unsigned long min; + u8 reg; + unsigned long val = simple_strtoul(buf, NULL, 10); + + down(&data->update_lock); + + /* Save fan_min */ + min = FAN_FROM_REG(data->fan_min[nr], + DIV_FROM_REG(data->fan_div[nr])); + + data->fan_div[nr] = DIV_TO_REG(val, data->type); + + reg = (w83781d_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV) + & (nr==0 ? 0xcf : 0x3f)) + | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6)); + w83781d_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg); + + /* w83781d and as99127f don't have extended divisor bits */ + if (data->type != w83781d && data->type != as99127f) { + reg = (w83781d_read_value(client, W83781D_REG_VBAT) + & ~(1 << (5 + nr))) + | ((data->fan_div[nr] & 0x04) << (3 + nr)); + w83781d_write_value(client, W83781D_REG_VBAT, reg); + } + + /* Restore fan_min */ + data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); + w83781d_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]); + + up(&data->update_lock); + return count; +} + +#define sysfs_fan_div(offset) \ +static ssize_t show_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_fan_div_reg(dev, buf, offset); \ +} \ +static ssize_t store_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + return store_fan_div_reg(dev, buf, count, offset - 1); \ +} \ +static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, show_regs_fan_div_##offset, store_regs_fan_div_##offset); + +sysfs_fan_div(1); +sysfs_fan_div(2); +sysfs_fan_div(3); + +#define device_create_file_fan_div(client, offset) \ +do { \ +device_create_file(&client->dev, &dev_attr_fan##offset##_div); \ +} while (0) + +static ssize_t +show_pwm_reg(struct device *dev, char *buf, int nr) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr - 1])); +} + +static ssize_t +show_pwmenable_reg(struct device *dev, char *buf, int nr) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%ld\n", (long) data->pwmenable[nr - 1]); +} + +static ssize_t +store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83781d_data *data = i2c_get_clientdata(client); + u32 val; + + val = simple_strtoul(buf, NULL, 10); + + down(&data->update_lock); + data->pwm[nr - 1] = PWM_TO_REG(val); + w83781d_write_value(client, W83781D_REG_PWM(nr), data->pwm[nr - 1]); + up(&data->update_lock); + return count; +} + +static ssize_t +store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83781d_data *data = i2c_get_clientdata(client); + u32 val, reg; + + val = simple_strtoul(buf, NULL, 10); + + down(&data->update_lock); + + switch (val) { + case 0: + case 1: + reg = w83781d_read_value(client, W83781D_REG_PWMCLK12); + w83781d_write_value(client, W83781D_REG_PWMCLK12, + (reg & 0xf7) | (val << 3)); + + reg = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); + w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, + (reg & 0xef) | (!val << 4)); + + data->pwmenable[nr - 1] = val; + break; + + default: + up(&data->update_lock); + return -EINVAL; + } + + up(&data->update_lock); + return count; +} + +#define sysfs_pwm(offset) \ +static ssize_t show_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_pwm_reg(dev, buf, offset); \ +} \ +static ssize_t store_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return store_pwm_reg(dev, buf, count, offset); \ +} \ +static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ + show_regs_pwm_##offset, store_regs_pwm_##offset); + +#define sysfs_pwmenable(offset) \ +static ssize_t show_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_pwmenable_reg(dev, buf, offset); \ +} \ +static ssize_t store_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + return store_pwmenable_reg(dev, buf, count, offset); \ +} \ +static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ + show_regs_pwmenable_##offset, store_regs_pwmenable_##offset); + +sysfs_pwm(1); +sysfs_pwm(2); +sysfs_pwmenable(2); /* only PWM2 can be enabled/disabled */ +sysfs_pwm(3); +sysfs_pwm(4); + +#define device_create_file_pwm(client, offset) \ +do { \ +device_create_file(&client->dev, &dev_attr_pwm##offset); \ +} while (0) + +#define device_create_file_pwmenable(client, offset) \ +do { \ +device_create_file(&client->dev, &dev_attr_pwm##offset##_enable); \ +} while (0) + +static ssize_t +show_sensor_reg(struct device *dev, char *buf, int nr) +{ + struct w83781d_data *data = w83781d_update_device(dev); + return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]); +} + +static ssize_t +store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83781d_data *data = i2c_get_clientdata(client); + u32 val, tmp; + + val = simple_strtoul(buf, NULL, 10); + + down(&data->update_lock); + + switch (val) { + case 1: /* PII/Celeron diode */ + tmp = w83781d_read_value(client, W83781D_REG_SCFG1); + w83781d_write_value(client, W83781D_REG_SCFG1, + tmp | BIT_SCFG1[nr - 1]); + tmp = w83781d_read_value(client, W83781D_REG_SCFG2); + w83781d_write_value(client, W83781D_REG_SCFG2, + tmp | BIT_SCFG2[nr - 1]); + data->sens[nr - 1] = val; + break; + case 2: /* 3904 */ + tmp = w83781d_read_value(client, W83781D_REG_SCFG1); + w83781d_write_value(client, W83781D_REG_SCFG1, + tmp | BIT_SCFG1[nr - 1]); + tmp = w83781d_read_value(client, W83781D_REG_SCFG2); + w83781d_write_value(client, W83781D_REG_SCFG2, + tmp & ~BIT_SCFG2[nr - 1]); + data->sens[nr - 1] = val; + break; + case W83781D_DEFAULT_BETA: /* thermistor */ + tmp = w83781d_read_value(client, W83781D_REG_SCFG1); + w83781d_write_value(client, W83781D_REG_SCFG1, + tmp & ~BIT_SCFG1[nr - 1]); + data->sens[nr - 1] = val; + break; + default: + dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or %d\n", + (long) val, W83781D_DEFAULT_BETA); + break; + } + + up(&data->update_lock); + return count; +} + +#define sysfs_sensor(offset) \ +static ssize_t show_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + return show_sensor_reg(dev, buf, offset); \ +} \ +static ssize_t store_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + return store_sensor_reg(dev, buf, count, offset); \ +} \ +static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, show_regs_sensor_##offset, store_regs_sensor_##offset); + +sysfs_sensor(1); +sysfs_sensor(2); +sysfs_sensor(3); + +#define device_create_file_sensor(client, offset) \ +do { \ +device_create_file(&client->dev, &dev_attr_temp##offset##_type); \ +} while (0) + +/* This function is called when: + * w83781d_driver is inserted (when this module is loaded), for each + available adapter + * when a new adapter is inserted (and w83781d_driver is still present) */ +static int +w83781d_attach_adapter(struct i2c_adapter *adapter) +{ + if (!(adapter->class & I2C_CLASS_HWMON)) + return 0; + return i2c_detect(adapter, &addr_data, w83781d_detect); +} + +/* Assumes that adapter is of I2C, not ISA variety. + * OTHERWISE DON'T CALL THIS + */ +static int +w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind, + struct i2c_client *new_client) +{ + int i, val1 = 0, id; + int err; + const char *client_name = ""; + struct w83781d_data *data = i2c_get_clientdata(new_client); + + data->lm75[0] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); + if (!(data->lm75[0])) { + err = -ENOMEM; + goto ERROR_SC_0; + } + memset(data->lm75[0], 0x00, sizeof (struct i2c_client)); + + id = i2c_adapter_id(adapter); + + if (force_subclients[0] == id && force_subclients[1] == address) { + for (i = 2; i <= 3; i++) { + if (force_subclients[i] < 0x48 || + force_subclients[i] > 0x4f) { + dev_err(&new_client->dev, "Invalid subclient " + "address %d; must be 0x48-0x4f\n", + force_subclients[i]); + err = -EINVAL; + goto ERROR_SC_1; + } + } + w83781d_write_value(new_client, W83781D_REG_I2C_SUBADDR, + (force_subclients[2] & 0x07) | + ((force_subclients[3] & 0x07) << 4)); + data->lm75[0]->addr = force_subclients[2]; + } else { + val1 = w83781d_read_value(new_client, W83781D_REG_I2C_SUBADDR); + data->lm75[0]->addr = 0x48 + (val1 & 0x07); + } + + if (kind != w83783s) { + + data->lm75[1] = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); + if (!(data->lm75[1])) { + err = -ENOMEM; + goto ERROR_SC_1; + } + memset(data->lm75[1], 0x0, sizeof(struct i2c_client)); + + if (force_subclients[0] == id && + force_subclients[1] == address) { + data->lm75[1]->addr = force_subclients[3]; + } else { + data->lm75[1]->addr = 0x48 + ((val1 >> 4) & 0x07); + } + if (data->lm75[0]->addr == data->lm75[1]->addr) { + dev_err(&new_client->dev, + "Duplicate addresses 0x%x for subclients.\n", + data->lm75[0]->addr); + err = -EBUSY; + goto ERROR_SC_2; + } + } + + if (kind == w83781d) + client_name = "w83781d subclient"; + else if (kind == w83782d) + client_name = "w83782d subclient"; + else if (kind == w83783s) + client_name = "w83783s subclient"; + else if (kind == w83627hf) + client_name = "w83627hf subclient"; + else if (kind == as99127f) + client_name = "as99127f subclient"; + + for (i = 0; i <= 1; i++) { + /* store all data in w83781d */ + i2c_set_clientdata(data->lm75[i], NULL); + data->lm75[i]->adapter = adapter; + data->lm75[i]->driver = &w83781d_driver; + data->lm75[i]->flags = 0; + strlcpy(data->lm75[i]->name, client_name, + I2C_NAME_SIZE); + if ((err = i2c_attach_client(data->lm75[i]))) { + dev_err(&new_client->dev, "Subclient %d " + "registration at address 0x%x " + "failed.\n", i, data->lm75[i]->addr); + if (i == 1) + goto ERROR_SC_3; + goto ERROR_SC_2; + } + if (kind == w83783s) + break; + } + + return 0; + +/* Undo inits in case of errors */ +ERROR_SC_3: + i2c_detach_client(data->lm75[0]); +ERROR_SC_2: + if (NULL != data->lm75[1]) + kfree(data->lm75[1]); +ERROR_SC_1: + if (NULL != data->lm75[0]) + kfree(data->lm75[0]); +ERROR_SC_0: + return err; +} + +static int +w83781d_detect(struct i2c_adapter *adapter, int address, int kind) +{ + int i = 0, val1 = 0, val2; + struct i2c_client *new_client; + struct w83781d_data *data; + int err; + const char *client_name = ""; + int is_isa = i2c_is_isa_adapter(adapter); + enum vendor { winbond, asus } vendid; + + if (!is_isa + && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { + err = -EINVAL; + goto ERROR0; + } + + /* Prevent users from forcing a kind for a bus it isn't supposed + to possibly be on */ + if (is_isa && (kind == as99127f || kind == w83783s)) { + dev_err(&adapter->dev, + "Cannot force I2C-only chip for ISA address 0x%02x.\n", + address); + err = -EINVAL; + goto ERROR0; + } + + if (is_isa) + if (!request_region(address, W83781D_EXTENT, + w83781d_driver.name)) { + dev_dbg(&adapter->dev, "Request of region " + "0x%x-0x%x for w83781d failed\n", address, + address + W83781D_EXTENT - 1); + err = -EBUSY; + goto ERROR0; + } + + /* Probe whether there is anything available on this address. Already + done for SMBus clients */ + if (kind < 0) { + if (is_isa) { + +#define REALLY_SLOW_IO + /* We need the timeouts for at least some LM78-like + chips. But only if we read 'undefined' registers. */ + i = inb_p(address + 1); + if (inb_p(address + 2) != i + || inb_p(address + 3) != i + || inb_p(address + 7) != i) { + dev_dbg(&adapter->dev, "Detection of w83781d " + "chip failed at step 1\n"); + err = -ENODEV; + goto ERROR1; + } +#undef REALLY_SLOW_IO + + /* Let's just hope nothing breaks here */ + i = inb_p(address + 5) & 0x7f; + outb_p(~i & 0x7f, address + 5); + val2 = inb_p(address + 5) & 0x7f; + if (val2 != (~i & 0x7f)) { + outb_p(i, address + 5); + dev_dbg(&adapter->dev, "Detection of w83781d " + "chip failed at step 2 (0x%x != " + "0x%x at 0x%x)\n", val2, ~i & 0x7f, + address + 5); + err = -ENODEV; + goto ERROR1; + } + } + } + + /* OK. For now, we presume we have a valid client. We now create the + client structure, even though we cannot fill it completely yet. + But it allows us to access w83781d_{read,write}_value. */ + + if (!(data = kmalloc(sizeof(struct w83781d_data), GFP_KERNEL))) { + err = -ENOMEM; + goto ERROR1; + } + memset(data, 0, sizeof(struct w83781d_data)); + + new_client = &data->client; + i2c_set_clientdata(new_client, data); + new_client->addr = address; + init_MUTEX(&data->lock); + new_client->adapter = adapter; + new_client->driver = &w83781d_driver; + new_client->flags = 0; + + /* Now, we do the remaining detection. */ + + /* The w8378?d may be stuck in some other bank than bank 0. This may + make reading other information impossible. Specify a force=... or + force_*=... parameter, and the Winbond will be reset to the right + bank. */ + if (kind < 0) { + if (w83781d_read_value(new_client, W83781D_REG_CONFIG) & 0x80) { + dev_dbg(&new_client->dev, "Detection failed at step " + "3\n"); + err = -ENODEV; + goto ERROR2; + } + val1 = w83781d_read_value(new_client, W83781D_REG_BANK); + val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN); + /* Check for Winbond or Asus ID if in bank 0 */ + if ((!(val1 & 0x07)) && + (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3)) + || ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) { + dev_dbg(&new_client->dev, "Detection failed at step " + "4\n"); + err = -ENODEV; + goto ERROR2; + } + /* If Winbond SMBus, check address at 0x48. + Asus doesn't support, except for as99127f rev.2 */ + if ((!is_isa) && (((!(val1 & 0x80)) && (val2 == 0xa3)) || + ((val1 & 0x80) && (val2 == 0x5c)))) { + if (w83781d_read_value + (new_client, W83781D_REG_I2C_ADDR) != address) { + dev_dbg(&new_client->dev, "Detection failed " + "at step 5\n"); + err = -ENODEV; + goto ERROR2; + } + } + } + + /* We have either had a force parameter, or we have already detected the + Winbond. Put it now into bank 0 and Vendor ID High Byte */ + w83781d_write_value(new_client, W83781D_REG_BANK, + (w83781d_read_value(new_client, + W83781D_REG_BANK) & 0x78) | + 0x80); + + /* Determine the chip type. */ + if (kind <= 0) { + /* get vendor ID */ + val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN); + if (val2 == 0x5c) + vendid = winbond; + else if (val2 == 0x12) + vendid = asus; + else { + dev_dbg(&new_client->dev, "Chip was made by neither " + "Winbond nor Asus?\n"); + err = -ENODEV; + goto ERROR2; + } + + val1 = w83781d_read_value(new_client, W83781D_REG_WCHIPID); + if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond) + kind = w83781d; + else if (val1 == 0x30 && vendid == winbond) + kind = w83782d; + else if (val1 == 0x40 && vendid == winbond && !is_isa + && address == 0x2d) + kind = w83783s; + else if (val1 == 0x21 && vendid == winbond) + kind = w83627hf; + else if (val1 == 0x31 && !is_isa && address >= 0x28) + kind = as99127f; + else { + if (kind == 0) + dev_warn(&new_client->dev, "Ignoring 'force' " + "parameter for unknown chip at " + "adapter %d, address 0x%02x\n", + i2c_adapter_id(adapter), address); + err = -EINVAL; + goto ERROR2; + } + } + + if (kind == w83781d) { + client_name = "w83781d"; + } else if (kind == w83782d) { + client_name = "w83782d"; + } else if (kind == w83783s) { + client_name = "w83783s"; + } else if (kind == w83627hf) { + client_name = "w83627hf"; + } else if (kind == as99127f) { + client_name = "as99127f"; + } + + /* Fill in the remaining client fields and put into the global list */ + strlcpy(new_client->name, client_name, I2C_NAME_SIZE); + data->type = kind; + + data->valid = 0; + init_MUTEX(&data->update_lock); + + /* Tell the I2C layer a new client has arrived */ + if ((err = i2c_attach_client(new_client))) + goto ERROR2; + + /* attach secondary i2c lm75-like clients */ + if (!is_isa) { + if ((err = w83781d_detect_subclients(adapter, address, + kind, new_client))) + goto ERROR3; + } else { + data->lm75[0] = NULL; + data->lm75[1] = NULL; + } + + /* Initialize the chip */ + w83781d_init_client(new_client); + + /* A few vars need to be filled upon startup */ + for (i = 1; i <= 3; i++) { + data->fan_min[i - 1] = w83781d_read_value(new_client, + W83781D_REG_FAN_MIN(i)); + } + if (kind != w83781d && kind != as99127f) + for (i = 0; i < 4; i++) + data->pwmenable[i] = 1; + + /* Register sysfs hooks */ + device_create_file_in(new_client, 0); + if (kind != w83783s) + device_create_file_in(new_client, 1); + device_create_file_in(new_client, 2); + device_create_file_in(new_client, 3); + device_create_file_in(new_client, 4); + device_create_file_in(new_client, 5); + device_create_file_in(new_client, 6); + if (kind != as99127f && kind != w83781d && kind != w83783s) { + device_create_file_in(new_client, 7); + device_create_file_in(new_client, 8); + } + + device_create_file_fan(new_client, 1); + device_create_file_fan(new_client, 2); + device_create_file_fan(new_client, 3); + + device_create_file_temp(new_client, 1); + device_create_file_temp(new_client, 2); + if (kind != w83783s) + device_create_file_temp(new_client, 3); + + device_create_file_vid(new_client); + device_create_file_vrm(new_client); + + device_create_file_fan_div(new_client, 1); + device_create_file_fan_div(new_client, 2); + device_create_file_fan_div(new_client, 3); + + device_create_file_alarms(new_client); + + device_create_file_beep(new_client); + + if (kind != w83781d && kind != as99127f) { + device_create_file_pwm(new_client, 1); + device_create_file_pwm(new_client, 2); + device_create_file_pwmenable(new_client, 2); + } + if (kind == w83782d && !is_isa) { + device_create_file_pwm(new_client, 3); + device_create_file_pwm(new_client, 4); + } + + if (kind != as99127f && kind != w83781d) { + device_create_file_sensor(new_client, 1); + device_create_file_sensor(new_client, 2); + if (kind != w83783s) + device_create_file_sensor(new_client, 3); + } + + return 0; + +ERROR3: + i2c_detach_client(new_client); +ERROR2: + kfree(data); +ERROR1: + if (is_isa) + release_region(address, W83781D_EXTENT); +ERROR0: + return err; +} + +static int +w83781d_detach_client(struct i2c_client *client) +{ + int err; + + if (i2c_is_isa_client(client)) + release_region(client->addr, W83781D_EXTENT); + + if ((err = i2c_detach_client(client))) { + dev_err(&client->dev, + "Client deregistration failed, client not detached.\n"); + return err; + } + + if (i2c_get_clientdata(client)==NULL) { + /* subclients */ + kfree(client); + } else { + /* main client */ + kfree(i2c_get_clientdata(client)); + } + + return 0; +} + +/* The SMBus locks itself, usually, but nothing may access the Winbond between + bank switches. ISA access must always be locked explicitly! + We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks, + would slow down the W83781D access and should not be necessary. + There are some ugly typecasts here, but the good news is - they should + nowhere else be necessary! */ +static int +w83781d_read_value(struct i2c_client *client, u16 reg) +{ + struct w83781d_data *data = i2c_get_clientdata(client); + int res, word_sized, bank; + struct i2c_client *cl; + + down(&data->lock); + if (i2c_is_isa_client(client)) { + word_sized = (((reg & 0xff00) == 0x100) + || ((reg & 0xff00) == 0x200)) + && (((reg & 0x00ff) == 0x50) + || ((reg & 0x00ff) == 0x53) + || ((reg & 0x00ff) == 0x55)); + if (reg & 0xff00) { + outb_p(W83781D_REG_BANK, + client->addr + W83781D_ADDR_REG_OFFSET); + outb_p(reg >> 8, + client->addr + W83781D_DATA_REG_OFFSET); + } + outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET); + res = inb_p(client->addr + W83781D_DATA_REG_OFFSET); + if (word_sized) { + outb_p((reg & 0xff) + 1, + client->addr + W83781D_ADDR_REG_OFFSET); + res = + (res << 8) + inb_p(client->addr + + W83781D_DATA_REG_OFFSET); + } + if (reg & 0xff00) { + outb_p(W83781D_REG_BANK, + client->addr + W83781D_ADDR_REG_OFFSET); + outb_p(0, client->addr + W83781D_DATA_REG_OFFSET); + } + } else { + bank = (reg >> 8) & 0x0f; + if (bank > 2) + /* switch banks */ + i2c_smbus_write_byte_data(client, W83781D_REG_BANK, + bank); + if (bank == 0 || bank > 2) { + res = i2c_smbus_read_byte_data(client, reg & 0xff); + } else { + /* switch to subclient */ + cl = data->lm75[bank - 1]; + /* convert from ISA to LM75 I2C addresses */ + switch (reg & 0xff) { + case 0x50: /* TEMP */ + res = swab16(i2c_smbus_read_word_data(cl, 0)); + break; + case 0x52: /* CONFIG */ + res = i2c_smbus_read_byte_data(cl, 1); + break; + case 0x53: /* HYST */ + res = swab16(i2c_smbus_read_word_data(cl, 2)); + break; + case 0x55: /* OVER */ + default: + res = swab16(i2c_smbus_read_word_data(cl, 3)); + break; + } + } + if (bank > 2) + i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0); + } + up(&data->lock); + return res; +} + +static int +w83781d_write_value(struct i2c_client *client, u16 reg, u16 value) +{ + struct w83781d_data *data = i2c_get_clientdata(client); + int word_sized, bank; + struct i2c_client *cl; + + down(&data->lock); + if (i2c_is_isa_client(client)) { + word_sized = (((reg & 0xff00) == 0x100) + || ((reg & 0xff00) == 0x200)) + && (((reg & 0x00ff) == 0x53) + || ((reg & 0x00ff) == 0x55)); + if (reg & 0xff00) { + outb_p(W83781D_REG_BANK, + client->addr + W83781D_ADDR_REG_OFFSET); + outb_p(reg >> 8, + client->addr + W83781D_DATA_REG_OFFSET); + } + outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET); + if (word_sized) { + outb_p(value >> 8, + client->addr + W83781D_DATA_REG_OFFSET); + outb_p((reg & 0xff) + 1, + client->addr + W83781D_ADDR_REG_OFFSET); + } + outb_p(value & 0xff, client->addr + W83781D_DATA_REG_OFFSET); + if (reg & 0xff00) { + outb_p(W83781D_REG_BANK, + client->addr + W83781D_ADDR_REG_OFFSET); + outb_p(0, client->addr + W83781D_DATA_REG_OFFSET); + } + } else { + bank = (reg >> 8) & 0x0f; + if (bank > 2) + /* switch banks */ + i2c_smbus_write_byte_data(client, W83781D_REG_BANK, + bank); + if (bank == 0 || bank > 2) { + i2c_smbus_write_byte_data(client, reg & 0xff, + value & 0xff); + } else { + /* switch to subclient */ + cl = data->lm75[bank - 1]; + /* convert from ISA to LM75 I2C addresses */ + switch (reg & 0xff) { + case 0x52: /* CONFIG */ + i2c_smbus_write_byte_data(cl, 1, value & 0xff); + break; + case 0x53: /* HYST */ + i2c_smbus_write_word_data(cl, 2, swab16(value)); + break; + case 0x55: /* OVER */ + i2c_smbus_write_word_data(cl, 3, swab16(value)); + break; + } + } + if (bank > 2) + i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0); + } + up(&data->lock); + return 0; +} + +/* Called when we have found a new W83781D. It should set limits, etc. */ +static void +w83781d_init_client(struct i2c_client *client) +{ + struct w83781d_data *data = i2c_get_clientdata(client); + int i, p; + int type = data->type; + u8 tmp; + + if (init && type != as99127f) { /* this resets registers we don't have + documentation for on the as99127f */ + /* save these registers */ + i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); + p = w83781d_read_value(client, W83781D_REG_PWMCLK12); + /* Reset all except Watchdog values and last conversion values + This sets fan-divs to 2, among others */ + w83781d_write_value(client, W83781D_REG_CONFIG, 0x80); + /* Restore the registers and disable power-on abnormal beep. + This saves FAN 1/2/3 input/output values set by BIOS. */ + w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80); + w83781d_write_value(client, W83781D_REG_PWMCLK12, p); + /* Disable master beep-enable (reset turns it on). + Individual beep_mask should be reset to off but for some reason + disabling this bit helps some people not get beeped */ + w83781d_write_value(client, W83781D_REG_BEEP_INTS2, 0); + } + + data->vrm = i2c_which_vrm(); + + if ((type != w83781d) && (type != as99127f)) { + tmp = w83781d_read_value(client, W83781D_REG_SCFG1); + for (i = 1; i <= 3; i++) { + if (!(tmp & BIT_SCFG1[i - 1])) { + data->sens[i - 1] = W83781D_DEFAULT_BETA; + } else { + if (w83781d_read_value + (client, + W83781D_REG_SCFG2) & BIT_SCFG2[i - 1]) + data->sens[i - 1] = 1; + else + data->sens[i - 1] = 2; + } + if (type == w83783s && i == 2) + break; + } + } + + if (init && type != as99127f) { + /* Enable temp2 */ + tmp = w83781d_read_value(client, W83781D_REG_TEMP2_CONFIG); + if (tmp & 0x01) { + dev_warn(&client->dev, "Enabling temp2, readings " + "might not make sense\n"); + w83781d_write_value(client, W83781D_REG_TEMP2_CONFIG, + tmp & 0xfe); + } + + /* Enable temp3 */ + if (type != w83783s) { + tmp = w83781d_read_value(client, + W83781D_REG_TEMP3_CONFIG); + if (tmp & 0x01) { + dev_warn(&client->dev, "Enabling temp3, " + "readings might not make sense\n"); + w83781d_write_value(client, + W83781D_REG_TEMP3_CONFIG, tmp & 0xfe); + } + } + + if (type != w83781d) { + /* enable comparator mode for temp2 and temp3 so + alarm indication will work correctly */ + i = w83781d_read_value(client, W83781D_REG_IRQ); + if (!(i & 0x40)) + w83781d_write_value(client, W83781D_REG_IRQ, + i | 0x40); + } + } + + /* Start monitoring */ + w83781d_write_value(client, W83781D_REG_CONFIG, + (w83781d_read_value(client, + W83781D_REG_CONFIG) & 0xf7) + | 0x01); +} + +static struct w83781d_data *w83781d_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct w83781d_data *data = i2c_get_clientdata(client); + int i; + + down(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + dev_dbg(dev, "Starting device update\n"); + + for (i = 0; i <= 8; i++) { + if (data->type == w83783s && i == 1) + continue; /* 783S has no in1 */ + data->in[i] = + w83781d_read_value(client, W83781D_REG_IN(i)); + data->in_min[i] = + w83781d_read_value(client, W83781D_REG_IN_MIN(i)); + data->in_max[i] = + w83781d_read_value(client, W83781D_REG_IN_MAX(i)); + if ((data->type != w83782d) + && (data->type != w83627hf) && (i == 6)) + break; + } + for (i = 1; i <= 3; i++) { + data->fan[i - 1] = + w83781d_read_value(client, W83781D_REG_FAN(i)); + data->fan_min[i - 1] = + w83781d_read_value(client, W83781D_REG_FAN_MIN(i)); + } + if (data->type != w83781d && data->type != as99127f) { + for (i = 1; i <= 4; i++) { + data->pwm[i - 1] = + w83781d_read_value(client, + W83781D_REG_PWM(i)); + if ((data->type != w83782d + || i2c_is_isa_client(client)) + && i == 2) + break; + } + /* Only PWM2 can be disabled */ + data->pwmenable[1] = (w83781d_read_value(client, + W83781D_REG_PWMCLK12) & 0x08) >> 3; + } + + data->temp = w83781d_read_value(client, W83781D_REG_TEMP(1)); + data->temp_max = + w83781d_read_value(client, W83781D_REG_TEMP_OVER(1)); + data->temp_max_hyst = + w83781d_read_value(client, W83781D_REG_TEMP_HYST(1)); + data->temp_add[0] = + w83781d_read_value(client, W83781D_REG_TEMP(2)); + data->temp_max_add[0] = + w83781d_read_value(client, W83781D_REG_TEMP_OVER(2)); + data->temp_max_hyst_add[0] = + w83781d_read_value(client, W83781D_REG_TEMP_HYST(2)); + if (data->type != w83783s) { + data->temp_add[1] = + w83781d_read_value(client, W83781D_REG_TEMP(3)); + data->temp_max_add[1] = + w83781d_read_value(client, + W83781D_REG_TEMP_OVER(3)); + data->temp_max_hyst_add[1] = + w83781d_read_value(client, + W83781D_REG_TEMP_HYST(3)); + } + i = w83781d_read_value(client, W83781D_REG_VID_FANDIV); + data->vid = i & 0x0f; + data->vid |= (w83781d_read_value(client, + W83781D_REG_CHIPID) & 0x01) << 4; + data->fan_div[0] = (i >> 4) & 0x03; + data->fan_div[1] = (i >> 6) & 0x03; + data->fan_div[2] = (w83781d_read_value(client, + W83781D_REG_PIN) >> 6) & 0x03; + if ((data->type != w83781d) && (data->type != as99127f)) { + i = w83781d_read_value(client, W83781D_REG_VBAT); + data->fan_div[0] |= (i >> 3) & 0x04; + data->fan_div[1] |= (i >> 4) & 0x04; + data->fan_div[2] |= (i >> 5) & 0x04; + } + data->alarms = + w83781d_read_value(client, + W83781D_REG_ALARM1) + + (w83781d_read_value(client, W83781D_REG_ALARM2) << 8); + if ((data->type == w83782d) || (data->type == w83627hf)) { + data->alarms |= + w83781d_read_value(client, + W83781D_REG_ALARM3) << 16; + } + i = w83781d_read_value(client, W83781D_REG_BEEP_INTS2); + data->beep_enable = i >> 7; + data->beep_mask = ((i & 0x7f) << 8) + + w83781d_read_value(client, W83781D_REG_BEEP_INTS1); + if ((data->type != w83781d) && (data->type != as99127f)) { + data->beep_mask |= + w83781d_read_value(client, + W83781D_REG_BEEP_INTS3) << 16; + } + data->last_updated = jiffies; + data->valid = 1; + } + + up(&data->update_lock); + + return data; +} + +static int __init +sensors_w83781d_init(void) +{ + return i2c_add_driver(&w83781d_driver); +} + +static void __exit +sensors_w83781d_exit(void) +{ + i2c_del_driver(&w83781d_driver); +} + +MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " + "Philip Edelbrock <phil@netroedge.com>, " + "and Mark Studebaker <mdsxyz123@yahoo.com>"); +MODULE_DESCRIPTION("W83781D driver"); +MODULE_LICENSE("GPL"); + +module_init(sensors_w83781d_init); +module_exit(sensors_w83781d_exit); |