| /* |
| 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 <linux/hwmon.h> |
| #include <linux/err.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 class_device *class_dev; |
| 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 (data->lm75[1]) |
| kfree(data->lm75[1]); |
| ERROR_SC_1: |
| if (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 */ |
| data->class_dev = hwmon_device_register(&new_client->dev); |
| if (IS_ERR(data->class_dev)) { |
| err = PTR_ERR(data->class_dev); |
| goto ERROR4; |
| } |
| |
| 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; |
| |
| ERROR4: |
| if (data->lm75[1]) { |
| i2c_detach_client(data->lm75[1]); |
| kfree(data->lm75[1]); |
| } |
| if (data->lm75[0]) { |
| i2c_detach_client(data->lm75[0]); |
| kfree(data->lm75[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) |
| { |
| struct w83781d_data *data = i2c_get_clientdata(client); |
| int err; |
| |
| /* main client */ |
| if (data) |
| hwmon_device_unregister(data->class_dev); |
| |
| 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; |
| } |
| |
| /* main client */ |
| if (data) |
| kfree(data); |
| |
| /* subclient */ |
| else |
| kfree(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); |