diff options
Diffstat (limited to 'drivers/hwmon/w83781d.c')
| -rw-r--r-- | drivers/hwmon/w83781d.c | 1205 |
1 files changed, 665 insertions, 540 deletions
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index a47da3ec5472..f85b48fea1c4 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c @@ -2,8 +2,9 @@ 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> + Philip Edelbrock <phil@netroedge.com>, + and Mark Studebaker <mdsxyz123@yahoo.com> + Copyright (c) 2007 Jean Delvare <khali@linux-fr.org> 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 @@ -38,15 +39,20 @@ #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> -#include <linux/i2c-isa.h> +#include <linux/platform_device.h> +#include <linux/ioport.h> #include <linux/hwmon.h> #include <linux/hwmon-vid.h> +#include <linux/hwmon-sysfs.h> #include <linux/sysfs.h> #include <linux/err.h> #include <linux/mutex.h> #include <asm/io.h> #include "lm75.h" +/* ISA device, if found */ +static struct platform_device *pdev; + /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, @@ -75,8 +81,8 @@ MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization"); #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 */ +/* The device registers */ +/* in nr from 0 to 8 */ #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) : \ @@ -84,12 +90,14 @@ MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization"); #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)) +/* fan nr from 0 to 2 */ +#define W83781D_REG_FAN_MIN(nr) (0x3b + (nr)) +#define W83781D_REG_FAN(nr) (0x28 + (nr)) #define W83781D_REG_BANK 0x4E #define W83781D_REG_TEMP2_CONFIG 0x152 #define W83781D_REG_TEMP3_CONFIG 0x252 +/* temp nr from 1 to 3 */ #define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \ ((nr == 2) ? (0x0150) : \ (0x27))) @@ -127,19 +135,9 @@ MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization"); #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 +static const u8 W83781D_REG_PWM[] = { 0x5B, 0x5A, 0x5E, 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 @@ -159,12 +157,9 @@ static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 }; #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) +/* Conversions */ +#define IN_TO_REG(val) SENSORS_LIMIT(((val) + 8) / 16, 0, 255) +#define IN_FROM_REG(val) ((val) * 16) static inline u8 FAN_TO_REG(long rpm, int div) @@ -175,24 +170,24 @@ FAN_TO_REG(long rpm, int div) 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)))) +static inline long +FAN_FROM_REG(u8 val, int div) +{ + if (val == 0) + return -1; + if (val == 255) + return 0; + return 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 TEMP_TO_REG(val) SENSORS_LIMIT((val) / 1000, -127, 128) +#define TEMP_FROM_REG(val) ((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 @@ -207,7 +202,7 @@ DIV_TO_REG(long val, enum chips type) break; val >>= 1; } - return ((u8) i); + return i; } /* There are some complications in a module like this. First off, W83781D chips @@ -221,8 +216,8 @@ DIV_TO_REG(long val, enum chips type) a bit - except if there could be more than one SMBus. Groan. No solution for this yet. */ -/* For each registered chip, we need to keep some data in memory. - The structure is dynamically allocated. */ +/* For ISA chips, we abuse the i2c_client addr and name fields. We also use + the driver field to differentiate between I2C and ISA chips. */ struct w83781d_data { struct i2c_client client; struct class_device *class_dev; @@ -241,9 +236,9 @@ struct w83781d_data { 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 */ + s8 temp; /* Register value */ + s8 temp_max; /* Register value */ + s8 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 */ @@ -253,7 +248,7 @@ struct w83781d_data { u32 beep_mask; /* Register encoding, combined */ u8 beep_enable; /* Boolean */ u8 pwm[4]; /* Register value */ - u8 pwmenable[4]; /* Boolean */ + u8 pwm2_enable; /* Boolean */ u16 sens[3]; /* 782D/783S only. 1 = pentium diode; 2 = 3904 diode; 3000-5000 = thermistor beta. @@ -263,14 +258,16 @@ struct w83781d_data { }; static int w83781d_attach_adapter(struct i2c_adapter *adapter); -static int w83781d_isa_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 reg); -static int w83781d_write_value(struct i2c_client *client, u16 reg, u16 value); +static int __devinit w83781d_isa_probe(struct platform_device *pdev); +static int __devexit w83781d_isa_remove(struct platform_device *pdev); + +static int w83781d_read_value(struct w83781d_data *data, u16 reg); +static int w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value); static struct w83781d_data *w83781d_update_device(struct device *dev); -static void w83781d_init_client(struct i2c_client *client); +static void w83781d_init_device(struct device *dev); static struct i2c_driver w83781d_driver = { .driver = { @@ -281,39 +278,44 @@ static struct i2c_driver w83781d_driver = { .detach_client = w83781d_detach_client, }; -static struct i2c_driver w83781d_isa_driver = { +static struct platform_driver w83781d_isa_driver = { .driver = { .owner = THIS_MODULE, - .name = "w83781d-isa", + .name = "w83781d", }, - .attach_adapter = w83781d_isa_attach_adapter, - .detach_client = w83781d_detach_client, + .probe = w83781d_isa_probe, + .remove = w83781d_isa_remove, }; /* following are the sysfs callback functions */ #define show_in_reg(reg) \ -static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ +static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \ + char *buf) \ { \ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ struct w83781d_data *data = w83781d_update_device(dev); \ - return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr] * 10)); \ + return sprintf(buf, "%ld\n", \ + (long)IN_FROM_REG(data->reg[attr->index])); \ } 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) \ +static ssize_t store_in_##reg (struct device *dev, struct device_attribute \ + *da, const char *buf, size_t count) \ { \ - struct i2c_client *client = to_i2c_client(dev); \ - struct w83781d_data *data = i2c_get_clientdata(client); \ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ + struct w83781d_data *data = dev_get_drvdata(dev); \ + int nr = attr->index; \ u32 val; \ \ - val = simple_strtoul(buf, NULL, 10) / 10; \ + val = simple_strtoul(buf, NULL, 10); \ \ mutex_lock(&data->update_lock); \ data->in_##reg[nr] = IN_TO_REG(val); \ - w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \ + w83781d_write_value(data, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \ \ mutex_unlock(&data->update_lock); \ return count; \ @@ -321,29 +323,13 @@ static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t 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); +static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ + show_in, NULL, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ + show_in_min, store_in_min, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ + show_in_max, store_in_max, offset) sysfs_in_offsets(0); sysfs_in_offsets(1); @@ -356,63 +342,56 @@ sysfs_in_offsets(7); sysfs_in_offsets(8); #define show_fan_reg(reg) \ -static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ +static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \ + char *buf) \ { \ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ 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]))); \ + FAN_FROM_REG(data->reg[attr->index], \ + DIV_FROM_REG(data->fan_div[attr->index]))); \ } 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) +store_fan_min(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct w83781d_data *data = i2c_get_clientdata(client); + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct w83781d_data *data = dev_get_drvdata(dev); + int nr = attr->index; u32 val; val = simple_strtoul(buf, NULL, 10); mutex_lock(&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]); + data->fan_min[nr] = + FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); + w83781d_write_value(data, W83781D_REG_FAN_MIN(nr), + data->fan_min[nr]); mutex_unlock(&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); +static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); +static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR, + show_fan_min, store_fan_min, 0); +static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); +static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR, + show_fan_min, store_fan_min, 1); +static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); +static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR, + show_fan_min, store_fan_min, 2); #define show_temp_reg(reg) \ -static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ +static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \ + char *buf) \ { \ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ struct w83781d_data *data = w83781d_update_device(dev); \ + int nr = attr->index; \ if (nr >= 2) { /* TEMP2 and TEMP3 */ \ return sprintf(buf,"%d\n", \ LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \ @@ -425,10 +404,12 @@ 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) \ +static ssize_t store_temp_##reg (struct device *dev, \ + struct device_attribute *da, const char *buf, size_t count) \ { \ - struct i2c_client *client = to_i2c_client(dev); \ - struct w83781d_data *data = i2c_get_clientdata(client); \ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ + struct w83781d_data *data = dev_get_drvdata(dev); \ + int nr = attr->index; \ s32 val; \ \ val = simple_strtol(buf, NULL, 10); \ @@ -437,11 +418,11 @@ static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t cou \ 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), \ + w83781d_write_value(data, 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), \ + w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \ data->temp_##reg); \ } \ \ @@ -451,29 +432,13 @@ static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t cou 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); +static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ + show_temp, NULL, offset); \ +static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ + show_temp_max, store_temp_max, offset); \ +static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \ + show_temp_max_hyst, store_temp_max_hyst, offset); sysfs_temp_offsets(1); sysfs_temp_offsets(2); @@ -498,8 +463,7 @@ show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) 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); + struct w83781d_data *data = dev_get_drvdata(dev); u32 val; val = simple_strtoul(buf, NULL, 10); @@ -528,68 +492,67 @@ static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr 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)); + return sprintf(buf, "%ld\n", (long)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) +store_beep_mask(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, val2; + struct w83781d_data *data = dev_get_drvdata(dev); + u32 val; val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); + data->beep_mask = BEEP_MASK_TO_REG(val, data->type); + w83781d_write_value(data, W83781D_REG_BEEP_INTS1, + data->beep_mask & 0xff); + w83781d_write_value(data, W83781D_REG_BEEP_INTS2, + ((data->beep_mask >> 8) & 0x7f) + | data->beep_enable << 7); + if (data->type != w83781d && data->type != as99127f) { + w83781d_write_value(data, W83781D_REG_BEEP_INTS3, + ((data->beep_mask) >> 16) & 0xff); + } + mutex_unlock(&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); - } + return count; +} - 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); - } +static ssize_t +store_beep_enable(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct w83781d_data *data = dev_get_drvdata(dev); + u32 val; - w83781d_write_value(client, W83781D_REG_BEEP_INTS2, - val2 | data->beep_enable << 7); + val = simple_strtoul(buf, NULL, 10); + if (val != 0 && val != 1) + return -EINVAL; + mutex_lock(&data->update_lock); + data->beep_enable = val; + val = w83781d_read_value(data, W83781D_REG_BEEP_INTS2) & 0x7f; + val |= data->beep_enable << 7; + w83781d_write_value(data, W83781D_REG_BEEP_INTS2, val); mutex_unlock(&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); +static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR, + show_beep_mask, store_beep_mask); +static DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR, + show_beep_enable, store_beep_enable); static ssize_t -show_fan_div_reg(struct device *dev, char *buf, int nr) +show_fan_div(struct device *dev, struct device_attribute *da, char *buf) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct w83781d_data *data = w83781d_update_device(dev); return sprintf(buf, "%ld\n", - (long) DIV_FROM_REG(data->fan_div[nr - 1])); + (long) DIV_FROM_REG(data->fan_div[attr->index])); } /* Note: we save and restore the fan minimum here, because its value is @@ -597,11 +560,13 @@ show_fan_div_reg(struct device *dev, char *buf, int nr) least surprise; 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) +store_fan_div(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct w83781d_data *data = i2c_get_clientdata(client); + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct w83781d_data *data = dev_get_drvdata(dev); unsigned long min; + int nr = attr->index; u8 reg; unsigned long val = simple_strtoul(buf, NULL, 10); @@ -613,77 +578,72 @@ store_fan_div_reg(struct device *dev, const char *buf, size_t count, int 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) + reg = (w83781d_read_value(data, 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_write_value(data, 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) + reg = (w83781d_read_value(data, W83781D_REG_VBAT) & ~(1 << (5 + nr))) | ((data->fan_div[nr] & 0x04) << (3 + nr)); - w83781d_write_value(client, W83781D_REG_VBAT, reg); + w83781d_write_value(data, 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]); + w83781d_write_value(data, W83781D_REG_FAN_MIN(nr), data->fan_min[nr]); mutex_unlock(&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); +static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, + show_fan_div, store_fan_div, 0); +static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, + show_fan_div, store_fan_div, 1); +static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, + show_fan_div, store_fan_div, 2); static ssize_t -show_pwm_reg(struct device *dev, char *buf, int nr) +show_pwm(struct device *dev, struct device_attribute *da, char *buf) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct w83781d_data *data = w83781d_update_device(dev); - return sprintf(buf, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr - 1])); + return sprintf(buf, "%d\n", (int)data->pwm[attr->index]); } static ssize_t -show_pwmenable_reg(struct device *dev, char *buf, int nr) +show_pwm2_enable(struct device *dev, struct device_attribute *da, char *buf) { struct w83781d_data *data = w83781d_update_device(dev); - return sprintf(buf, "%ld\n", (long) data->pwmenable[nr - 1]); + return sprintf(buf, "%d\n", (int)data->pwm2_enable); } static ssize_t -store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr) +store_pwm(struct device *dev, struct device_attribute *da, const char *buf, + size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct w83781d_data *data = i2c_get_clientdata(client); + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct w83781d_data *data = dev_get_drvdata(dev); + int nr = attr->index; u32 val; val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); - data->pwm[nr - 1] = PWM_TO_REG(val); - w83781d_write_value(client, W83781D_REG_PWM(nr), data->pwm[nr - 1]); + data->pwm[nr] = SENSORS_LIMIT(val, 0, 255); + w83781d_write_value(data, W83781D_REG_PWM[nr], data->pwm[nr]); mutex_unlock(&data->update_lock); return count; } static ssize_t -store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr) +store_pwm2_enable(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct w83781d_data *data = i2c_get_clientdata(client); + struct w83781d_data *data = dev_get_drvdata(dev); u32 val, reg; val = simple_strtoul(buf, NULL, 10); @@ -693,15 +653,15 @@ store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr) switch (val) { case 0: case 1: - reg = w83781d_read_value(client, W83781D_REG_PWMCLK12); - w83781d_write_value(client, W83781D_REG_PWMCLK12, + reg = w83781d_read_value(data, W83781D_REG_PWMCLK12); + w83781d_write_value(data, 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 = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG); + w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, (reg & 0xef) | (!val << 4)); - data->pwmenable[nr - 1] = val; + data->pwm2_enable = val; break; default: @@ -713,50 +673,29 @@ store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr) 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); +static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0); +static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 1); +static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 2); +static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 3); +/* only PWM2 can be enabled/disabled */ +static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, + show_pwm2_enable, store_pwm2_enable); static ssize_t -show_sensor_reg(struct device *dev, char *buf, int nr) +show_sensor(struct device *dev, struct device_attribute *da, char *buf) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct w83781d_data *data = w83781d_update_device(dev); - return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]); + return sprintf(buf, "%d\n", (int)data->sens[attr->index]); } static ssize_t -store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr) +store_sensor(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct w83781d_data *data = i2c_get_clientdata(client); + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct w83781d_data *data = dev_get_drvdata(dev); + int nr = attr->index; u32 val, tmp; val = simple_strtoul(buf, NULL, 10); @@ -765,28 +704,28 @@ store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr) 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; + tmp = w83781d_read_value(data, W83781D_REG_SCFG1); + w83781d_write_value(data, W83781D_REG_SCFG1, + tmp | BIT_SCFG1[nr]); + tmp = w83781d_read_value(data, W83781D_REG_SCFG2); + w83781d_write_value(data, W83781D_REG_SCFG2, + tmp | BIT_SCFG2[nr]); + data->sens[nr] = 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; + tmp = w83781d_read_value(data, W83781D_REG_SCFG1); + w83781d_write_value(data, W83781D_REG_SCFG1, + tmp | BIT_SCFG1[nr]); + tmp = w83781d_read_value(data, W83781D_REG_SCFG2); + w83781d_write_value(data, W83781D_REG_SCFG2, + tmp & ~BIT_SCFG2[nr]); + data->sens[nr] = 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; + tmp = w83781d_read_value(data, W83781D_REG_SCFG1); + w83781d_write_value(data, W83781D_REG_SCFG1, + tmp & ~BIT_SCFG1[nr]); + data->sens[nr] = val; break; default: dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or %d\n", @@ -798,20 +737,22 @@ store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr) 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); +static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, + show_sensor, store_sensor, 0); +static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, + show_sensor, store_sensor, 0); +static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, + show_sensor, store_sensor, 0); -sysfs_sensor(1); -sysfs_sensor(2); -sysfs_sensor(3); +/* I2C devices get this name attribute automatically, but for ISA devices + we must create it by ourselves. */ +static ssize_t +show_name(struct device *dev, struct device_attribute *devattr, char *buf) +{ + struct w83781d_data *data = dev_get_drvdata(dev); + return sprintf(buf, "%s\n", data->client.name); +} +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); /* This function is called when: * w83781d_driver is inserted (when this module is loaded), for each @@ -825,12 +766,6 @@ w83781d_attach_adapter(struct i2c_adapter *adapter) return i2c_probe(adapter, &addr_data, w83781d_detect); } -static int -w83781d_isa_attach_adapter(struct i2c_adapter *adapter) -{ - return w83781d_detect(adapter, isa_address, -1); -} - /* Assumes that adapter is of I2C, not ISA variety. * OTHERWISE DON'T CALL THIS */ @@ -862,12 +797,12 @@ w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind, goto ERROR_SC_1; } } - w83781d_write_value(new_client, W83781D_REG_I2C_SUBADDR, + w83781d_write_value(data, 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); + val1 = w83781d_read_value(data, W83781D_REG_I2C_SUBADDR); data->lm75[0]->addr = 0x48 + (val1 & 0x07); } @@ -937,20 +872,20 @@ ERROR_SC_0: return err; } -#define IN_UNIT_ATTRS(X) \ - &dev_attr_in##X##_input.attr, \ - &dev_attr_in##X##_min.attr, \ - &dev_attr_in##X##_max.attr +#define IN_UNIT_ATTRS(X) \ + &sensor_dev_attr_in##X##_input.dev_attr.attr, \ + &sensor_dev_attr_in##X##_min.dev_attr.attr, \ + &sensor_dev_attr_in##X##_max.dev_attr.attr -#define FAN_UNIT_ATTRS(X) \ - &dev_attr_fan##X##_input.attr, \ - &dev_attr_fan##X##_min.attr, \ - &dev_attr_fan##X##_div.attr +#define FAN_UNIT_ATTRS(X) \ + &sensor_dev_attr_fan##X##_input.dev_attr.attr, \ + &sensor_dev_attr_fan##X##_min.dev_attr.attr, \ + &sensor_dev_attr_fan##X##_div.dev_attr.attr -#define TEMP_UNIT_ATTRS(X) \ - &dev_attr_temp##X##_input.attr, \ - &dev_attr_temp##X##_max.attr, \ - &dev_attr_temp##X##_max_hyst.attr +#define TEMP_UNIT_ATTRS(X) \ + &sensor_dev_attr_temp##X##_input.dev_attr.attr, \ + &sensor_dev_attr_temp##X##_max.dev_attr.attr, \ + &sensor_dev_attr_temp##X##_max_hyst.dev_attr.attr static struct attribute* w83781d_attributes[] = { IN_UNIT_ATTRS(0), @@ -980,91 +915,115 @@ static struct attribute *w83781d_attributes_opt[] = { IN_UNIT_ATTRS(7), IN_UNIT_ATTRS(8), TEMP_UNIT_ATTRS(3), - &dev_attr_pwm1.attr, - &dev_attr_pwm2.attr, + &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + &sensor_dev_attr_pwm4.dev_attr.attr, &dev_attr_pwm2_enable.attr, - &dev_attr_pwm3.attr, - &dev_attr_pwm4.attr, - &dev_attr_temp1_type.attr, - &dev_attr_temp2_type.attr, - &dev_attr_temp3_type.attr, + &sensor_dev_attr_temp1_type.dev_attr.attr, + &sensor_dev_attr_temp2_type.dev_attr.attr, + &sensor_dev_attr_temp3_type.dev_attr.attr, NULL }; static const struct attribute_group w83781d_group_opt = { .attrs = w83781d_attributes_opt, }; +/* No clean up is done on error, it's up to the caller */ static int -w83781d_detect(struct i2c_adapter *adapter, int address, int kind) +w83781d_create_files(struct device *dev, int kind, int is_isa) { - int i = 0, val1 = 0, val2; - struct i2c_client *client; - struct device *dev; - 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; + if ((err = sysfs_create_group(&dev->kobj, &w83781d_group))) + return err; + + if (kind != w83783s) { + if ((err = device_create_file(dev, + &sensor_dev_attr_in1_input.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_in1_min.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_in1_max.dev_attr))) + return err; + } + if (kind != as99127f && kind != w83781d && kind != w83783s) { + if ((err = device_create_file(dev, + &sensor_dev_attr_in7_input.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_in7_min.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_in7_max.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_in8_input.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_in8_min.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_in8_max.dev_attr))) + return err; + } + if (kind != w83783s) { + if ((err = device_create_file(dev, + &sensor_dev_attr_temp3_input.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_temp3_max.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_temp3_max_hyst.dev_attr))) + return err; } - /* 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 (kind != w83781d && kind != as99127f) { + if ((err = device_create_file(dev, + &sensor_dev_attr_pwm1.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_pwm2.dev_attr)) + || (err = device_create_file(dev, &dev_attr_pwm2_enable))) + return err; } - - if (is_isa) - if (!request_region(address, W83781D_EXTENT, - w83781d_isa_driver.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; + if (kind == w83782d && !is_isa) { + if ((err = device_create_file(dev, + &sensor_dev_attr_pwm3.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_pwm4.dev_attr))) + return err; + } + + if (kind != as99127f && kind != w83781d) { + if ((err = device_create_file(dev, + &sensor_dev_attr_temp1_type.dev_attr)) + || (err = device_create_file(dev, + &sensor_dev_attr_temp2_type.dev_attr))) + return err; + if (kind != w83783s) { + if ((err = device_create_file(dev, + &sensor_dev_attr_temp3_type.dev_attr))) + return err; } + } - /* Probe whether there is anything available on this address. Already - done for SMBus clients */ - if (kind < 0) { - if (is_isa) { + if (is_isa) { + err = device_create_file(&pdev->dev, &dev_attr_name); + if (err) + return err; + } -#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 + return 0; +} - /* 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; - } - } +static int +w83781d_detect(struct i2c_adapter *adapter, int address, int kind) +{ + int val1 = 0, val2; + struct i2c_client *client; + struct device *dev; + struct w83781d_data *data; + int err; + const char *client_name = ""; + enum vendor { winbond, asus } vendid; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { + err = -EINVAL; + goto ERROR1; } /* OK. For now, we presume we have a valid client. We now create the @@ -1081,8 +1040,7 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind) client->addr = address; mutex_init(&data->lock); client->adapter = adapter; - client->driver = is_isa ? &w83781d_isa_driver : &w83781d_driver; - client->flags = 0; + client->driver = &w83781d_driver; dev = &client->dev; /* Now, we do the remaining detection. */ @@ -1092,14 +1050,14 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind) force_*=... parameter, and the Winbond will be reset to the right bank. */ if (kind < 0) { - if (w83781d_read_value(client, W83781D_REG_CONFIG) & 0x80) { + if (w83781d_read_value(data, W83781D_REG_CONFIG) & 0x80) { dev_dbg(&adapter->dev, "Detection of w83781d chip " "failed at step 3\n"); err = -ENODEV; goto ERROR2; } - val1 = w83781d_read_value(client, W83781D_REG_BANK); - val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN); + val1 = w83781d_read_value(data, W83781D_REG_BANK); + val2 = w83781d_read_value(data, W83781D_REG_CHIPMAN); /* Check for Winbond or Asus ID if in bank 0 */ if ((!(val1 & 0x07)) && (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3)) @@ -1111,10 +1069,10 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind) } /* 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 ((!(val1 & 0x80) && (val2 == 0xa3)) || + ((val1 & 0x80) && (val2 == 0x5c))) { if (w83781d_read_value - (client, W83781D_REG_I2C_ADDR) != address) { + (data, W83781D_REG_I2C_ADDR) != address) { dev_dbg(&adapter->dev, "Detection of w83781d " "chip failed at step 5\n"); err = -ENODEV; @@ -1125,14 +1083,14 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind) /* 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(client, W83781D_REG_BANK, - (w83781d_read_value(client, W83781D_REG_BANK) + w83781d_write_value(data, W83781D_REG_BANK, + (w83781d_read_value(data, W83781D_REG_BANK) & 0x78) | 0x80); /* Determine the chip type. */ if (kind <= 0) { /* get vendor ID */ - val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN); + val2 = w83781d_read_value(data, W83781D_REG_CHIPMAN); if (val2 == 0x5c) vendid = winbond; else if (val2 == 0x12) @@ -1144,17 +1102,16 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind) goto ERROR2; } - val1 = w83781d_read_value(client, W83781D_REG_WCHIPID); + val1 = w83781d_read_value(data, 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) + else if (val1 == 0x40 && vendid == winbond && address == 0x2d) kind = w83783s; else if (val1 == 0x21 && vendid == winbond) kind = w83627hf; - else if (val1 == 0x31 && !is_isa && address >= 0x28) + else if (val1 == 0x31 && address >= 0x28) kind = as99127f; else { if (kind == 0) @@ -1182,86 +1139,23 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind) strlcpy(client->name, client_name, I2C_NAME_SIZE); data->type = kind; - data->valid = 0; - mutex_init(&data->update_lock); - /* Tell the I2C layer a new client has arrived */ if ((err = i2c_attach_client(client))) goto ERROR2; /* attach secondary i2c lm75-like clients */ - if (!is_isa) { - if ((err = w83781d_detect_subclients(adapter, address, - kind, client))) - goto ERROR3; - } else { - data->lm75[0] = NULL; - data->lm75[1] = NULL; - } + if ((err = w83781d_detect_subclients(adapter, address, + kind, client))) + goto ERROR3; /* Initialize the chip */ - w83781d_init_client(client); - - /* A few vars need to be filled upon startup */ - for (i = 1; i <= 3; i++) { - data->fan_min[i - 1] = w83781d_read_value(client, - W83781D_REG_FAN_MIN(i)); - } - if (kind != w83781d && kind != as99127f) - for (i = 0; i < 4; i++) - data->pwmenable[i] = 1; + w83781d_init_device(dev); /* Register sysfs hooks */ - if ((err = sysfs_create_group(&dev->kobj, &w83781d_group))) + err = w83781d_create_files(dev, kind, 0); + if (err) goto ERROR4; - if (kind != w83783s) { - if ((err = device_create_file(dev, &dev_attr_in1_input)) - || (err = device_create_file(dev, &dev_attr_in1_min)) - || (err = device_create_file(dev, &dev_attr_in1_max))) - goto ERROR4; - } - if (kind != as99127f && kind != w83781d && kind != w83783s) { - if ((err = device_create_file(dev, &dev_attr_in7_input)) - || (err = device_create_file(dev, &dev_attr_in7_min)) - || (err = device_create_file(dev, &dev_attr_in7_max)) - || (err = device_create_file(dev, &dev_attr_in8_input)) - || (err = device_create_file(dev, &dev_attr_in8_min)) - || (err = device_create_file(dev, &dev_attr_in8_max))) - goto ERROR4; - } - if (kind != w83783s) { - if ((err = device_create_file(dev, &dev_attr_temp3_input)) - || (err = device_create_file(dev, &dev_attr_temp3_max)) - || (err = device_create_file(dev, - &dev_attr_temp3_max_hyst))) - goto ERROR4; - } - - if (kind != w83781d && kind != as99127f) { - if ((err = device_create_file(dev, &dev_attr_pwm1)) - || (err = device_create_file(dev, &dev_attr_pwm2)) - || (err = device_create_file(dev, &dev_attr_pwm2_enable))) - goto ERROR4; - } - if (kind == w83782d && !is_isa) { - if ((err = device_create_file(dev, &dev_attr_pwm3)) - || (err = device_create_file(dev, &dev_attr_pwm4))) - goto ERROR4; - } - - if (kind != as99127f && kind != w83781d) { - if ((err = device_create_file(dev, &dev_attr_temp1_type)) - || (err = device_create_file(dev, - &dev_attr_temp2_type))) - goto ERROR4; - if (kind != w83783s) { - if ((err = device_create_file(dev, - &dev_attr_temp3_type))) - goto ERROR4; - } - } - data->class_dev = hwmon_device_register(dev); if (IS_ERR(data->class_dev)) { err = PTR_ERR(data->class_dev); @@ -1287,9 +1181,6 @@ ERROR3: ERROR2: kfree(data); ERROR1: - if (is_isa) - release_region(address, W83781D_EXTENT); -ERROR0: return err; } @@ -1305,8 +1196,6 @@ w83781d_detach_client(struct i2c_client *client) sysfs_remove_group(&client->dev.kobj, &w83781d_group); sysfs_remove_group(&client->dev.kobj, &w83781d_group_opt); } - if (i2c_is_isa_client(client)) - release_region(client->addr, W83781D_EXTENT); if ((err = i2c_detach_client(client))) return err; @@ -1322,6 +1211,88 @@ w83781d_detach_client(struct i2c_client *client) return 0; } +static int __devinit +w83781d_isa_probe(struct platform_device *pdev) +{ + int err, reg; + struct w83781d_data *data; + struct resource *res; + const char *name; + + /* Reserve the ISA region */ + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!request_region(res->start, W83781D_EXTENT, "w83781d")) { + err = -EBUSY; + goto exit; + } + + if (!(data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL))) { + err = -ENOMEM; + goto exit_release_region; + } + mutex_init(&data->lock); + data->client.addr = res->start; + i2c_set_clientdata(&data->client, data); + platform_set_drvdata(pdev, data); + + reg = w83781d_read_value(data, W83781D_REG_WCHIPID); + switch (reg) { + case 0x21: + data->type = w83627hf; + name = "w83627hf"; + break; + case 0x30: + data->type = w83782d; + name = "w83782d"; + break; + default: + data->type = w83781d; + name = "w83781d"; + } + strlcpy(data->client.name, name, I2C_NAME_SIZE); + + /* Initialize the W83781D chip */ + w83781d_init_device(&pdev->dev); + + /* Register sysfs hooks */ + err = w83781d_create_files(&pdev->dev, data->type, 1); + if (err) + goto exit_remove_files; + + data->class_dev = hwmon_device_register(&pdev->dev); + if (IS_ERR(data->class_dev)) { + err = PTR_ERR(data->class_dev); + goto exit_remove_files; + } + + return 0; + + exit_remove_files: + sysfs_remove_group(&pdev->dev.kobj, &w83781d_group); + sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt); + device_remove_file(&pdev->dev, &dev_attr_name); + kfree(data); + exit_release_region: + release_region(res->start, W83781D_EXTENT); + exit: + return err; +} + +static int __devexit +w83781d_isa_remove(struct platform_device *pdev) +{ + struct w83781d_data *data = platform_get_drvdata(pdev); + + hwmon_device_unregister(data->class_dev); + sysfs_remove_group(&pdev->dev.kobj, &w83781d_group); + sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt); + device_remove_file(&pdev->dev, &dev_attr_name); + release_region(data->client.addr, W83781D_EXTENT); + kfree(data); + + 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, @@ -1329,14 +1300,14 @@ w83781d_detach_client(struct i2c_client *client) 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) +w83781d_read_value(struct w83781d_data *data, u16 reg) { - struct w83781d_data *data = i2c_get_clientdata(client); + struct i2c_client *client = &data->client; int res, word_sized, bank; struct i2c_client *cl; mutex_lock(&data->lock); - if (i2c_is_isa_client(client)) { + if (!client->driver) { /* ISA device */ word_sized = (((reg & 0xff00) == 0x100) || ((reg & 0xff00) == 0x200)) && (((reg & 0x00ff) == 0x50) @@ -1398,14 +1369,14 @@ w83781d_read_value(struct i2c_client *client, u16 reg) } static int -w83781d_write_value(struct i2c_client *client, u16 reg, u16 value) +w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value) { - struct w83781d_data *data = i2c_get_clientdata(client); + struct i2c_client *client = &data->client; int word_sized, bank; struct i2c_client *cl; mutex_lock(&data->lock); - if (i2c_is_isa_client(client)) { + if (!client->driver) { /* ISA device */ word_sized = (((reg & 0xff00) == 0x100) || ((reg & 0xff00) == 0x200)) && (((reg & 0x00ff) == 0x53) @@ -1462,13 +1433,18 @@ w83781d_write_value(struct i2c_client *client, u16 reg, u16 value) } static void -w83781d_init_client(struct i2c_client *client) +w83781d_init_device(struct device *dev) { - struct w83781d_data *data = i2c_get_clientdata(client); + struct w83781d_data *data = dev_get_drvdata(dev); int i, p; int type = data->type; u8 tmp; + if (type == w83627hf) + dev_info(dev, "The W83627HF chip is better supported by the " + "w83627hf driver, support will be dropped from the " + "w83781d driver soon\n"); + if (reset && type != as99127f) { /* this resets registers we don't have documentation for on the as99127f */ /* Resetting the chip has been the default for a long time, @@ -1477,42 +1453,42 @@ w83781d_init_client(struct i2c_client *client) It might even go away if nobody reports it as being useful, as I see very little reason why this would be needed at all. */ - dev_info(&client->dev, "If reset=1 solved a problem you were " + dev_info(dev, "If reset=1 solved a problem you were " "having, please report!\n"); /* save these registers */ - i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); - p = w83781d_read_value(client, W83781D_REG_PWMCLK12); + i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG); + p = w83781d_read_value(data, 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); + w83781d_write_value(data, 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); + w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80); + w83781d_write_value(data, 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); + w83781d_write_value(data, W83781D_REG_BEEP_INTS2, 0); } /* Disable power-on abnormal beep, as advised by the datasheet. Already done if reset=1. */ if (init && !reset && type != as99127f) { - i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); - w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80); + i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG); + w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80); } data->vrm = vid_which_vrm(); if ((type != w83781d) && (type != as99127f)) { - tmp = w83781d_read_value(client, W83781D_REG_SCFG1); + tmp = w83781d_read_value(data, 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, + (data, W83781D_REG_SCFG2) & BIT_SCFG2[i - 1]) data->sens[i - 1] = 1; else @@ -1525,38 +1501,46 @@ w83781d_init_client(struct i2c_client *client) if (init && type != as99127f) { /* Enable temp2 */ - tmp = w83781d_read_value(client, W83781D_REG_TEMP2_CONFIG); + tmp = w83781d_read_value(data, W83781D_REG_TEMP2_CONFIG); if (tmp & 0x01) { - dev_warn(&client->dev, "Enabling temp2, readings " + dev_warn(dev, "Enabling temp2, readings " "might not make sense\n"); - w83781d_write_value(client, W83781D_REG_TEMP2_CONFIG, + w83781d_write_value(data, W83781D_REG_TEMP2_CONFIG, tmp & 0xfe); } /* Enable temp3 */ if (type != w83783s) { - tmp = w83781d_read_value(client, + tmp = w83781d_read_value(data, W83781D_REG_TEMP3_CONFIG); if (tmp & 0x01) { - dev_warn(&client->dev, "Enabling temp3, " + dev_warn(dev, "Enabling temp3, " "readings might not make sense\n"); - w83781d_write_value(client, + w83781d_write_value(data, W83781D_REG_TEMP3_CONFIG, tmp & 0xfe); } } } /* Start monitoring */ - w83781d_write_value(client, W83781D_REG_CONFIG, - (w83781d_read_value(client, + w83781d_write_value(data, W83781D_REG_CONFIG, + (w83781d_read_value(data, W83781D_REG_CONFIG) & 0xf7) | 0x01); + + /* A few vars need to be filled upon startup */ + for (i = 0; i < 3; i++) { + data->fan_min[i] = w83781d_read_value(data, + W83781D_REG_FAN_MIN(i)); + } + + mutex_init(&data->update_lock); } 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); + struct w83781d_data *data = dev_get_drvdata(dev); + struct i2c_client *client = &data->client; int i; mutex_lock(&data->update_lock); @@ -1569,98 +1553,97 @@ static struct w83781d_data *w83781d_update_device(struct device *dev) if (data->type == w83783s && i == 1) continue; /* 783S has no in1 */ data->in[i] = - w83781d_read_value(client, W83781D_REG_IN(i)); + w83781d_read_value(data, W83781D_REG_IN(i)); data->in_min[i] = - w83781d_read_value(client, W83781D_REG_IN_MIN(i)); + w83781d_read_value(data, W83781D_REG_IN_MIN(i)); data->in_max[i] = - w83781d_read_value(client, W83781D_REG_IN_MAX(i)); + w83781d_read_value(data, 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)); + for (i = 0; i < 3; i++) { + data->fan[i] = + w83781d_read_value(data, W83781D_REG_FAN(i)); + data->fan_min[i] = + w83781d_read_value(data, 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) + for (i = 0; i < 4; i++) { + data->pwm[i] = + w83781d_read_value(data, + W83781D_REG_PWM[i]); + if ((data->type != w83782d || !client->driver) + && i == 1) break; } /* Only PWM2 can be disabled */ - data->pwmenable[1] = (w83781d_read_value(client, + data->pwm2_enable = (w83781d_read_value(data, W83781D_REG_PWMCLK12) & 0x08) >> 3; } - data->temp = w83781d_read_value(client, W83781D_REG_TEMP(1)); + data->temp = w83781d_read_value(data, W83781D_REG_TEMP(1)); data->temp_max = - w83781d_read_value(client, W83781D_REG_TEMP_OVER(1)); + w83781d_read_value(data, W83781D_REG_TEMP_OVER(1)); data->temp_max_hyst = - w83781d_read_value(client, W83781D_REG_TEMP_HYST(1)); + w83781d_read_value(data, W83781D_REG_TEMP_HYST(1)); data->temp_add[0] = - w83781d_read_value(client, W83781D_REG_TEMP(2)); + w83781d_read_value(data, W83781D_REG_TEMP(2)); data->temp_max_add[0] = - w83781d_read_value(client, W83781D_REG_TEMP_OVER(2)); + w83781d_read_value(data, W83781D_REG_TEMP_OVER(2)); data->temp_max_hyst_add[0] = - w83781d_read_value(client, W83781D_REG_TEMP_HYST(2)); + w83781d_read_value(data, W83781D_REG_TEMP_HYST(2)); if (data->type != w83783s) { data->temp_add[1] = - w83781d_read_value(client, W83781D_REG_TEMP(3)); + w83781d_read_value(data, W83781D_REG_TEMP(3)); data->temp_max_add[1] = - w83781d_read_value(client, + w83781d_read_value(data, W83781D_REG_TEMP_OVER(3)); data->temp_max_hyst_add[1] = - w83781d_read_value(client, + w83781d_read_value(data, W83781D_REG_TEMP_HYST(3)); } - i = w83781d_read_value(client, W83781D_REG_VID_FANDIV); + i = w83781d_read_value(data, W83781D_REG_VID_FANDIV); data->vid = i & 0x0f; - data->vid |= (w83781d_read_value(client, + data->vid |= (w83781d_read_value(data, 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, + data->fan_div[2] = (w83781d_read_value(data, W83781D_REG_PIN) >> 6) & 0x03; if ((data->type != w83781d) && (data->type != as99127f)) { - i = w83781d_read_value(client, W83781D_REG_VBAT); + i = w83781d_read_value(data, W83781D_REG_VBAT); data->fan_div[0] |= (i >> 3) & 0x04; data->fan_div[1] |= (i >> 4) & 0x04; data->fan_div[2] |= (i >> 5) & 0x04; } if ((data->type == w83782d) || (data->type == w83627hf)) { - data->alarms = w83781d_read_value(client, + data->alarms = w83781d_read_value(data, W83782D_REG_ALARM1) - | (w83781d_read_value(client, + | (w83781d_read_value(data, W83782D_REG_ALARM2) << 8) - | (w83781d_read_value(client, + | (w83781d_read_value(data, W83782D_REG_ALARM3) << 16); } else if (data->type == w83783s) { - data->alarms = w83781d_read_value(client, + data->alarms = w83781d_read_value(data, W83782D_REG_ALARM1) - | (w83781d_read_value(client, + | (w83781d_read_value(data, W83782D_REG_ALARM2) << 8); } else { /* No real-time status registers, fall back to interrupt status registers */ - data->alarms = w83781d_read_value(client, + data->alarms = w83781d_read_value(data, W83781D_REG_ALARM1) - | (w83781d_read_value(client, + | (w83781d_read_value(data, W83781D_REG_ALARM2) << 8); } - i = w83781d_read_value(client, W83781D_REG_BEEP_INTS2); + i = w83781d_read_value(data, W83781D_REG_BEEP_INTS2); data->beep_enable = i >> 7; data->beep_mask = ((i & 0x7f) << 8) + - w83781d_read_value(client, W83781D_REG_BEEP_INTS1); + w83781d_read_value(data, W83781D_REG_BEEP_INTS1); if ((data->type != w83781d) && (data->type != as99127f)) { data->beep_mask |= - w83781d_read_value(client, + w83781d_read_value(data, W83781D_REG_BEEP_INTS3) << 16; } data->last_updated = jiffies; @@ -1672,6 +1655,133 @@ static struct w83781d_data *w83781d_update_device(struct device *dev) return data; } +/* return 1 if a supported chip is found, 0 otherwise */ +static int __init +w83781d_isa_found(unsigned short address) +{ + int val, save, found = 0; + + if (!request_region(address, W83781D_EXTENT, "w83781d")) + return 0; + +#define REALLY_SLOW_IO + /* We need the timeouts for at least some W83781D-like + chips. But only if we read 'undefined' registers. */ + val = inb_p(address + 1); + if (inb_p(address + 2) != val + || inb_p(address + 3) != val + || inb_p(address + 7) != val) { + pr_debug("w83781d: Detection failed at step 1\n"); + goto release; + } +#undef REALLY_SLOW_IO + + /* We should be able to change the 7 LSB of the address port. The + MSB (busy flag) should be clear initially, set after the write. */ + save = inb_p(address + W83781D_ADDR_REG_OFFSET); + if (save & 0x80) { + pr_debug("w83781d: Detection failed at step 2\n"); + goto release; + } + val = ~save & 0x7f; + outb_p(val, address + W83781D_ADDR_REG_OFFSET); + if (inb_p(address + W83781D_ADDR_REG_OFFSET) != (val | 0x80)) { + outb_p(save, address + W83781D_ADDR_REG_OFFSET); + pr_debug("w83781d: Detection failed at step 3\n"); + goto release; + } + + /* We found a device, now see if it could be a W83781D */ + outb_p(W83781D_REG_CONFIG, address + W83781D_ADDR_REG_OFFSET); + val = inb_p(address + W83781D_DATA_REG_OFFSET); + if (val & 0x80) { + pr_debug("w83781d: Detection failed at step 4\n"); + goto release; + } + outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET); + save = inb_p(address + W83781D_DATA_REG_OFFSET); + outb_p(W83781D_REG_CHIPMAN, address + W83781D_ADDR_REG_OFFSET); + val = inb_p(address + W83781D_DATA_REG_OFFSET); + if ((!(save & 0x80) && (val != 0xa3)) + || ((save & 0x80) && (val != 0x5c))) { + pr_debug("w83781d: Detection failed at step 5\n"); + goto release; + } + outb_p(W83781D_REG_I2C_ADDR, address + W83781D_ADDR_REG_OFFSET); + val = inb_p(address + W83781D_DATA_REG_OFFSET); + if (val < 0x03 || val > 0x77) { /* Not a valid I2C address */ + pr_debug("w83781d: Detection failed at step 6\n"); + goto release; + } + + /* The busy flag should be clear again */ + if (inb_p(address + W83781D_ADDR_REG_OFFSET) & 0x80) { + pr_debug("w83781d: Detection failed at step 7\n"); + goto release; + } + + /* Determine the chip type */ + outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET); + save = inb_p(address + W83781D_DATA_REG_OFFSET); + outb_p(save & 0xf8, address + W83781D_DATA_REG_OFFSET); + outb_p(W83781D_REG_WCHIPID, address + W83781D_ADDR_REG_OFFSET); + val = inb_p(address + W83781D_DATA_REG_OFFSET); + if ((val & 0xfe) == 0x10 /* W83781D */ + || val == 0x30 /* W83782D */ + || val == 0x21) /* W83627HF */ + found = 1; + + if (found) + pr_info("w83781d: Found a %s chip at %#x\n", + val == 0x21 ? "W83627HF" : + val == 0x30 ? "W83782D" : "W83781D", (int)address); + + release: + release_region(address, W83781D_EXTENT); + return found; +} + +static int __init +w83781d_isa_device_add(unsigned short address) +{ + struct resource res = { + .start = address, + .end = address + W83781D_EXTENT, + .name = "w83781d", + .flags = IORESOURCE_IO, + }; + int err; + + pdev = platform_device_alloc("w83781d", address); + if (!pdev) { + err = -ENOMEM; + printk(KERN_ERR "w83781d: Device allocation failed\n"); + goto exit; + } + + err = platform_device_add_resources(pdev, &res, 1); + if (err) { + printk(KERN_ERR "w83781d: Device resource addition failed " + "(%d)\n", err); + goto exit_device_put; + } + + err = platform_device_add(pdev); + if (err) { + printk(KERN_ERR "w83781d: Device addition failed (%d)\n", + err); + goto exit_device_put; + } + + return 0; + + exit_device_put: + platform_device_put(pdev); + exit: + pdev = NULL; + return err; +} + static int __init sensors_w83781d_init(void) { @@ -1679,21 +1789,36 @@ sensors_w83781d_init(void) res = i2c_add_driver(&w83781d_driver); if (res) - return res; + goto exit; + + if (w83781d_isa_found(isa_address)) { + res = platform_driver_register(&w83781d_isa_driver); + if (res) + goto exit_unreg_i2c_driver; - /* Don't exit if this one fails, we still want the I2C variants - to work! */ - if (i2c_isa_add_driver(&w83781d_isa_driver)) - isa_address = 0; + /* Sets global pdev as a side effect */ + res = w83781d_isa_device_add(isa_address); + if (res) + goto exit_unreg_isa_driver; + } return 0; + + exit_unreg_isa_driver: + platform_driver_unregister(&w83781d_isa_driver); + exit_unreg_i2c_driver: + i2c_del_driver(&w83781d_driver); + exit: + return res; } static void __exit sensors_w83781d_exit(void) { - if (isa_address) - i2c_isa_del_driver(&w83781d_isa_driver); + if (pdev) { + platform_device_unregister(pdev); + platform_driver_unregister(&w83781d_isa_driver); + } i2c_del_driver(&w83781d_driver); } |