/* sis5595.c - Part of lm_sensors, Linux kernel modules for hardware monitoring Copyright (c) 1998, 1999 Frodo Looijaard , Kyösti Mälkki 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. */ #include #include #include #include #include #include #if LINUX_VERSION_CODE < 0x020136 /* 2.1.54 */ #include #endif #include #include #include #include "smbus.h" #include "version.h" #include "i2c-isa.h" #include "sensors.h" #include "i2c.h" #include "compat.h" /* SiS southbridge has lm78 integrated on the same IC, This drives is a customized copy of lm78.c */ /* Many LM78 constants specified below */ /* Length of ISA address segment */ #define LM78_EXTENT 8 #define LM78_BASE_REG 0x68 /* Where are the ISA address/data registers relative to the base address */ #define LM78_ADDR_REG_OFFSET 5 #define LM78_DATA_REG_OFFSET 6 /* The LM78 registers */ #define LM78_REG_IN_MAX(nr) (0x2b + (nr) * 2) #define LM78_REG_IN_MIN(nr) (0x2c + (nr) * 2) #define LM78_REG_IN(nr) (0x20 + (nr)) #define LM78_REG_FAN_MIN(nr) (0x3a + (nr)) #define LM78_REG_FAN(nr) (0x27 + (nr)) #define LM78_REG_TEMP 0x27 #define LM78_REG_TEMP_OVER 0x39 #define LM78_REG_TEMP_HYST 0x3a #define LM78_REG_ALARM1 0x41 /* Not available in SiS 5595 #define LM78_REG_ALARM2 0x42 */ #define LM78_REG_VID_FANDIV 0x47 #define LM78_REG_CONFIG 0x40 /* Conversions. Rounding is only done on the TO_REG variants. */ #define IN_TO_REG(val) (((val) * 10 + 8)/16) #define IN_FROM_REG(val) (((val) * 16) / 10) #define FAN_TO_REG(val,div) ((val)==0?255:((1350000+(val)*(div)/2)/\ ((val)*(div))) & 0xff) #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div))) #define TEMP_TO_REG(val) (((val)<0?(((val)-5)/10)&0xff:((val)+5)/10) & 0xff) #define TEMP_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*10) #define VID_FROM_REG(val) ((val)==0x1f?0:(val)>=0x10?510-(val)*10:\ (val)>=0x06?0:205-(val)*5) #define ALARMS_FROM_REG(val) (val) #define DIV_FROM_REG(val) (1 << (val)) #define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1) /* Initial limits. To keep them sane, we use the 'standard' translation as specified in the LM78 sheet. Use the config file to set better limits. */ #define LM78_INIT_IN_0 (vid==350?280:vid) #define LM78_INIT_IN_1 (vid==350?280:vid) #define LM78_INIT_IN_2 330 #define LM78_INIT_IN_3 (((500) * 100)/168) #define LM78_INIT_IN_4 (((1200) * 10)/38) #define LM78_INIT_IN_5 (((-1200) * -604)/2100) #define LM78_INIT_IN_6 (((-500) * -604)/909) #define LM78_INIT_IN_PERCENTAGE 10 #define LM78_INIT_IN_MIN_0 \ (LM78_INIT_IN_0 - LM78_INIT_IN_0 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MAX_0 \ (LM78_INIT_IN_0 + LM78_INIT_IN_0 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MIN_1 \ (LM78_INIT_IN_1 - LM78_INIT_IN_1 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MAX_1 \ (LM78_INIT_IN_1 + LM78_INIT_IN_1 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MIN_2 \ (LM78_INIT_IN_2 - LM78_INIT_IN_2 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MAX_2 \ (LM78_INIT_IN_2 + LM78_INIT_IN_2 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MIN_3 \ (LM78_INIT_IN_3 - LM78_INIT_IN_3 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MAX_3 \ (LM78_INIT_IN_3 + LM78_INIT_IN_3 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MIN_4 \ (LM78_INIT_IN_4 - LM78_INIT_IN_4 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MAX_4 \ (LM78_INIT_IN_4 + LM78_INIT_IN_4 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MIN_5 \ (LM78_INIT_IN_5 - LM78_INIT_IN_5 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MAX_5 \ (LM78_INIT_IN_5 + LM78_INIT_IN_5 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MIN_6 \ (LM78_INIT_IN_6 - LM78_INIT_IN_6 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_IN_MAX_6 \ (LM78_INIT_IN_6 + LM78_INIT_IN_6 * LM78_INIT_IN_PERCENTAGE / 100) #define LM78_INIT_FAN_MIN_1 3000 #define LM78_INIT_FAN_MIN_2 3000 #define LM78_INIT_FAN_MIN_3 3000 #define LM78_INIT_TEMP_OVER 600 #define LM78_INIT_TEMP_HYST 500 #ifdef MODULE extern int init_module(void); extern int cleanup_module(void); #endif /* MODULE */ /* 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. */ /* Types of chips supported */ enum lm78_type { lm78 }; /* For each registered LM78, we need to keep some data in memory. That data is pointed to by lm78_list[NR]->data. The structure itself is dynamically allocated, at the same time when a new lm78 client is allocated. */ struct lm78_data { struct semaphore lock; int sysctl_id; enum lm78_type type; struct semaphore update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ u8 in[7]; /* Register value */ u8 in_max[7]; /* Register value */ u8 in_min[7]; /* Register value */ u8 fan[3]; /* Register value */ u8 fan_min[3]; /* Register value */ u8 temp; /* Register value */ u8 temp_over; /* Register value */ u8 temp_hyst; /* Register value */ u8 fan_div[3]; /* Register encoding, shifted right */ u8 vid; /* Register encoding, combined */ u16 alarms; /* Register encoding, combined */ }; static int lm78_init(void); static int lm78_cleanup(void); static int lm78_attach_adapter(struct i2c_adapter *adapter); static int lm78_detect_isa(struct isa_adapter *adapter); static int lm78_detach_client(struct i2c_client *client); static int lm78_detach_isa(struct isa_client *client); static int lm78_new_client(struct i2c_adapter *adapter, struct i2c_client *new_client); static void lm78_remove_client(struct i2c_client *client); static int lm78_command(struct i2c_client *client, unsigned int cmd, void *arg); static void lm78_inc_use (struct i2c_client *client); static void lm78_dec_use (struct i2c_client *client); static int lm78_read_value(struct i2c_client *client, u8 register); static int lm78_write_value(struct i2c_client *client, u8 register, u8 value); static void lm78_update_client(struct i2c_client *client); static void lm78_init_client(struct i2c_client *client); static void lm78_in(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void lm78_fan(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void lm78_temp(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void lm78_vid(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void lm78_alarms(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void lm78_fan_div(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); /* I choose here for semi-static LM78 allocation. Complete dynamic allocation could also be used; the code needed for this would probably take more memory than the datastructure takes now. */ #define MAX_LM78_NR 4 static struct i2c_client *lm78_list[MAX_LM78_NR]; /* The driver. I choose to use type i2c_driver, as at is identical to both smbus_driver and isa_driver, and clients could be of either kind */ static struct i2c_driver lm78_driver = { /* name */ "SiS 5595", /* id */ I2C_DRIVERID_SIS5595, /* flags */ DF_NOTIFY, /* attach_adapter */ &lm78_attach_adapter, /* detach_client */ &lm78_detach_client, /* command */ &lm78_command, /* inc_use */ &lm78_inc_use, /* dec_use */ &lm78_dec_use }; /* Used by lm78_init/cleanup */ static int lm78_initialized = 0; /* The /proc/sys entries */ /* These files are created for each detected LM78. This is just a template; though at first sight, you might think we could use a statically allocated list, we need some way to get back to the parent - which is done through one of the 'extra' fields which are initialized when a new copy is allocated. */ static ctl_table lm78_dir_table_template[] = { { LM78_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_in }, { LM78_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_in }, { LM78_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_in }, { LM78_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_in }, { LM78_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_in }, { LM78_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_in }, { LM78_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_in }, { LM78_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_fan }, { LM78_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_fan }, { LM78_SYSCTL_FAN3, "fan3", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_fan }, { LM78_SYSCTL_TEMP, "temp", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_temp }, { LM78_SYSCTL_VID, "vid", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_vid }, { LM78_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_fan_div }, { LM78_SYSCTL_ALARMS, "alarms", NULL, 0, 0644, NULL, &sensors_proc_real, &sensors_sysctl_real, NULL, &lm78_alarms }, { 0 } }; /* This is called when the module is loaded */ int lm78_attach_adapter(struct i2c_adapter *adapter) { return lm78_detect_isa((struct isa_adapter *) adapter); } /* This is called when the module is loaded */ int lm78_detach_client(struct i2c_client *client) { return lm78_detach_isa((struct isa_client *) client); } /* Locate SiS bridge and correct base address for LM78 */ #if LINUX_VERSION_CODE >= 0x020136 /* 2.1.54 */ static int find_sis(int *address) { struct pci_dev *s_bridge; u16 val; if (! pci_present()) return -ENODEV; s_bridge = pci_find_device( PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, NULL); if (! s_bridge) return -ENODEV; if ( PCIBIOS_SUCCESSFUL != pci_read_config_word(s_bridge, LM78_BASE_REG, &val)) return -ENODEV; *address = (val & 0xfff8); return 0; } #else static int find_sis(int *address) { unsigned char SIS_bus, SIS_devfn; u16 val; if (! pcibios_present()) return -ENODEV; if(pcibios_find_device( PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, 0, &SIS_bus, &SIS_devfn)) return -ENODEV; if ( PCIBIOS_SUCCESSFUL != pcibios_read_config_word(SIS_bus, SIS_devfn, LM78_BASE_REG, &val)) return -ENODEV; *address = (val & 0xfff8); return 0; } #endif /* Register and initialize lm78 it. */ int lm78_detect_isa(struct isa_adapter *adapter) { int address = 0, err = 0; struct isa_client *new_client; enum lm78_type type; const char *type_name; const char *client_name; /* OK, this is detection. */ if (err=find_sis(&address)) { printk("SiS 5595 southbridge not found\n"); return err; } if ( (err = check_region(address, LM78_EXTENT)) < 0 ) { printk("sis5595.o: IO 0x%x-0x%x already in use\n", address, address + LM78_EXTENT); return err; } /* printk("sis5595.o: lm78 io base at 0x%4x\n", address); */ type = lm78; type_name = "sis5595"; client_name = "SiS 5595 Sensor"; request_region(address, LM78_EXTENT, type_name); /* Allocate space for a new client structure */ if (! (new_client = kmalloc(sizeof(struct isa_client) + sizeof(struct lm78_data), GFP_KERNEL))) { err=-ENOMEM; goto ERROR1; } /* Fill the new client structure with data */ new_client->data = (struct lm78_data *) (new_client + 1); new_client->addr = 0; strcpy(new_client->name,client_name); ((struct lm78_data *) (new_client->data))->type = type; new_client->isa_addr = address; if ((err = lm78_new_client((struct i2c_adapter *) adapter, (struct i2c_client *) new_client))) goto ERROR2; /* Tell i2c-core a new client has arrived */ if ((err = isa_attach_client(new_client))) goto ERROR3; /* Register a new directory entry with module sensors */ if ((err = sensors_register_entry((struct i2c_client *) new_client, type_name, lm78_dir_table_template)) < 0) goto ERROR4; ((struct lm78_data *) (new_client->data)) -> sysctl_id = err; err = 0; /* Initialize the LM78 chip */ lm78_init_client((struct i2c_client *) new_client); return err; /* OK, this is not exactly good programming practice, usually. But it is very code-efficient in this case. */ ERROR4: isa_detach_client(new_client); ERROR3: lm78_remove_client((struct i2c_client *) new_client); ERROR2: kfree(new_client); ERROR1: release_region(address, LM78_EXTENT); return err; } /* Deregister and remove a LM78 client */ int lm78_detach_isa(struct isa_client *client) { int err,i; for (i = 0; i < MAX_LM78_NR; i++) if ((client == (struct isa_client *) (lm78_list[i]))) break; if (i == MAX_LM78_NR) { printk("sis5595.o: Client to detach not found.\n"); return -ENOENT; } sensors_deregister_entry(((struct lm78_data *)(client->data))->sysctl_id); if ((err = isa_detach_client(client))) { printk("sis5595.o: Client deregistration failed, client not detached.\n"); return err; } lm78_remove_client((struct i2c_client *) client); release_region(client->isa_addr,LM78_EXTENT); kfree(client); return 0; } /* Find a free slot, and initialize most of the fields */ int lm78_new_client(struct i2c_adapter *adapter, struct i2c_client *new_client) { int i; struct lm78_data *data; /* First, seek out an empty slot */ for(i = 0; i < MAX_LM78_NR; i++) if (! lm78_list[i]) break; if (i == MAX_LM78_NR) { printk("sis5595.o: No empty slots left, recompile and heighten " "MAX_LM78_NR!\n"); return -ENOMEM; } lm78_list[i] = new_client; new_client->id = i; new_client->adapter = adapter; new_client->driver = &lm78_driver; data = new_client->data; data->valid = 0; data->lock = MUTEX; data->update_lock = MUTEX; return 0; } /* Inverse of lm78_new_client */ void lm78_remove_client(struct i2c_client *client) { int i; for (i = 0; i < MAX_LM78_NR; i++) if (client == lm78_list[i]) lm78_list[i] = NULL; } /* No commands defined yet */ int lm78_command(struct i2c_client *client, unsigned int cmd, void *arg) { return 0; } /* Nothing here yet */ void lm78_inc_use (struct i2c_client *client) { #ifdef MODULE MOD_INC_USE_COUNT; #endif } /* Nothing here yet */ void lm78_dec_use (struct i2c_client *client) { #ifdef MODULE MOD_DEC_USE_COUNT; #endif } /* The SMBus locks itself, but ISA access must be locked explicitely! There are some ugly typecasts here, but the good new is - they should nowhere else be necessary! */ int lm78_read_value(struct i2c_client *client, u8 reg) { int res; down((struct semaphore *) (client->data)); outb_p(reg,(((struct isa_client *) client)->isa_addr) + LM78_ADDR_REG_OFFSET); res = inb_p((((struct isa_client *) client)->isa_addr) + LM78_DATA_REG_OFFSET); up((struct semaphore *) (client->data)); return res; } /* The SMBus locks itself, but ISA access muse be locked explicitely! There are some ugly typecasts here, but the good new is - they should nowhere else be necessary! */ int lm78_write_value(struct i2c_client *client, u8 reg, u8 value) { down((struct semaphore *) (client->data)); outb_p(reg,((struct isa_client *) client)->isa_addr + LM78_ADDR_REG_OFFSET); outb_p(value,((struct isa_client *) client)->isa_addr + LM78_DATA_REG_OFFSET); up((struct semaphore *) (client->data)); return 0; } /* Called when we have found a new LM78. It should set limits, etc. */ void lm78_init_client(struct i2c_client *client) { int vid; /* Reset all except Watchdog values and last conversion values This sets fan-divs to 2, among others */ lm78_write_value(client,LM78_REG_CONFIG,0x80); vid = lm78_read_value(client,LM78_REG_VID_FANDIV) & 0x0f; vid |= 0x10; vid = VID_FROM_REG(vid); lm78_write_value(client,LM78_REG_IN_MIN(0),IN_TO_REG(LM78_INIT_IN_MIN_0)); lm78_write_value(client,LM78_REG_IN_MAX(0),IN_TO_REG(LM78_INIT_IN_MAX_0)); lm78_write_value(client,LM78_REG_IN_MIN(1),IN_TO_REG(LM78_INIT_IN_MIN_1)); lm78_write_value(client,LM78_REG_IN_MAX(1),IN_TO_REG(LM78_INIT_IN_MAX_1)); lm78_write_value(client,LM78_REG_IN_MIN(2),IN_TO_REG(LM78_INIT_IN_MIN_2)); lm78_write_value(client,LM78_REG_IN_MAX(2),IN_TO_REG(LM78_INIT_IN_MAX_2)); lm78_write_value(client,LM78_REG_IN_MIN(3),IN_TO_REG(LM78_INIT_IN_MIN_3)); lm78_write_value(client,LM78_REG_IN_MAX(3),IN_TO_REG(LM78_INIT_IN_MAX_3)); lm78_write_value(client,LM78_REG_IN_MIN(4),IN_TO_REG(LM78_INIT_IN_MIN_4)); lm78_write_value(client,LM78_REG_IN_MAX(4),IN_TO_REG(LM78_INIT_IN_MAX_4)); lm78_write_value(client,LM78_REG_IN_MIN(5),IN_TO_REG(LM78_INIT_IN_MIN_5)); lm78_write_value(client,LM78_REG_IN_MAX(5),IN_TO_REG(LM78_INIT_IN_MAX_5)); lm78_write_value(client,LM78_REG_IN_MIN(6),IN_TO_REG(LM78_INIT_IN_MIN_6)); lm78_write_value(client,LM78_REG_IN_MAX(6),IN_TO_REG(LM78_INIT_IN_MAX_6)); lm78_write_value(client,LM78_REG_FAN_MIN(1), FAN_TO_REG(LM78_INIT_FAN_MIN_1,2)); lm78_write_value(client,LM78_REG_FAN_MIN(2), FAN_TO_REG(LM78_INIT_FAN_MIN_2,2)); lm78_write_value(client,LM78_REG_FAN_MIN(3), FAN_TO_REG(LM78_INIT_FAN_MIN_3,2)); lm78_write_value(client,LM78_REG_TEMP_OVER,TEMP_TO_REG(LM78_INIT_TEMP_OVER)); lm78_write_value(client,LM78_REG_TEMP_HYST,TEMP_TO_REG(LM78_INIT_TEMP_HYST)); /* Start monitoring */ lm78_write_value(client,LM78_REG_CONFIG, (lm78_read_value(client,LM78_REG_CONFIG) & 0xf7) | 0x01); } void lm78_update_client(struct i2c_client *client) { struct lm78_data *data = client->data; int i; down(&data->update_lock); if ((jiffies - data->last_updated > HZ+HZ/2 ) || (jiffies < data->last_updated) || ! data->valid) { #ifdef DEBUG printk("Starting lm78 update\n"); #endif for (i = 0; i <= 6; i++) { data->in[i] = lm78_read_value(client,LM78_REG_IN(i)); data->in_min[i] = lm78_read_value(client,LM78_REG_IN_MIN(i)); data->in_max[i] = lm78_read_value(client,LM78_REG_IN_MAX(i)); } for (i = 1; i <= 3; i++) { data->fan[i-1] = lm78_read_value(client,LM78_REG_FAN(i)); data->fan_min[i-1] = lm78_read_value(client,LM78_REG_FAN_MIN(i)); } data->temp = lm78_read_value(client,LM78_REG_TEMP); data->temp_over = lm78_read_value(client,LM78_REG_TEMP_OVER); data->temp_hyst = lm78_read_value(client,LM78_REG_TEMP_HYST); i = lm78_read_value(client,LM78_REG_VID_FANDIV); data->vid = i & 0x0f; data->vid |= 0x10; data->fan_div[0] = (i >> 4) & 0x03; data->fan_div[1] = i >> 6; data->alarms = lm78_read_value(client,LM78_REG_ALARM1); /* Not available in SiS 5595 + (lm78_read_value(client,LM78_REG_ALARM2) << 8); */ data->last_updated = jiffies; data->valid = 1; data->fan_div[2] = 1; } up(&data->update_lock); } /* The next few functions are the call-back functions of the /proc/sys and sysctl files. Which function is used is defined in the ctl_table in the extra1 field. Each function must return the magnitude (power of 10 to divide the date with) if it is called with operation==SENSORS_PROC_REAL_INFO. It must put a maximum of *nrels elements in results reflecting the data of this file, and set *nrels to the number it actually put in it, if operation== SENSORS_PROC_REAL_READ. Finally, it must get upto *nrels elements from results and write them to the chip, if operations==SENSORS_PROC_REAL_WRITE. Note that on SENSORS_PROC_REAL_READ, I do not check whether results is large enough (by checking the incoming value of *nrels). This is not very good practice, but as long as you put less than about 5 values in results, you can assume it is large enough. */ void lm78_in(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct lm78_data *data = client->data; int nr = ctl_name - LM78_SYSCTL_IN0; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 2; else if (operation == SENSORS_PROC_REAL_READ) { lm78_update_client(client); results[0] = IN_FROM_REG(data->in_min[nr]); results[1] = IN_FROM_REG(data->in_max[nr]); results[2] = IN_FROM_REG(data->in[nr]); *nrels_mag = 3; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->in_min[nr] = IN_TO_REG(results[0]); lm78_write_value(client,LM78_REG_IN_MIN(nr),data->in_min[nr]); } if (*nrels_mag >= 2) { data->in_max[nr] = IN_TO_REG(results[1]); lm78_write_value(client,LM78_REG_IN_MAX(nr),data->in_max[nr]); } } } void lm78_fan(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct lm78_data *data = client->data; int nr = ctl_name - LM78_SYSCTL_FAN1 + 1; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { lm78_update_client(client); results[0] = FAN_FROM_REG(data->fan_min[nr-1], DIV_FROM_REG(data->fan_div[nr-1])); results[1] = FAN_FROM_REG(data->fan[nr-1], DIV_FROM_REG(data->fan_div[nr-1])); *nrels_mag = 2; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->fan_min[nr-1] = FAN_TO_REG(results[0], DIV_FROM_REG(data->fan_div[nr-1])); lm78_write_value(client,LM78_REG_FAN_MIN(nr),data->fan_min[nr-1]); } } } void lm78_temp(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct lm78_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 1; else if (operation == SENSORS_PROC_REAL_READ) { lm78_update_client(client); results[0] = TEMP_FROM_REG(data->temp_over); results[1] = TEMP_FROM_REG(data->temp_hyst); results[2] = TEMP_FROM_REG(data->temp); *nrels_mag = 3; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->temp_over = TEMP_TO_REG(results[0]); lm78_write_value(client,LM78_REG_TEMP_OVER,data->temp_over); } if (*nrels_mag >= 2) { data->temp_hyst = TEMP_TO_REG(results[1]); lm78_write_value(client,LM78_REG_TEMP_HYST,data->temp_hyst); } } } void lm78_vid(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct lm78_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 2; else if (operation == SENSORS_PROC_REAL_READ) { lm78_update_client(client); results[0] = VID_FROM_REG(data->vid); *nrels_mag = 1; } } void lm78_alarms(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct lm78_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { lm78_update_client(client); results[0] = ALARMS_FROM_REG(data->alarms); *nrels_mag = 1; } } void lm78_fan_div(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct lm78_data *data = client->data; int old; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { lm78_update_client(client); results[0] = DIV_FROM_REG(data->fan_div[0]); results[1] = DIV_FROM_REG(data->fan_div[1]); results[2] = 2; *nrels_mag = 3; } else if (operation == SENSORS_PROC_REAL_WRITE) { old = lm78_read_value(client,LM78_REG_VID_FANDIV); if (*nrels_mag >= 2) { data->fan_div[1] = DIV_TO_REG(results[1]); old = (old & 0x3f) | (data->fan_div[1] << 6); } if (*nrels_mag >= 1) { data->fan_div[0] = DIV_TO_REG(results[0]); old = (old & 0xcf) | (data->fan_div[0] << 4); lm78_write_value(client,LM78_REG_VID_FANDIV,old); } } } int lm78_init(void) { int res; printk("sis5595.o version %s (%s)\n",LM_VERSION,LM_DATE); lm78_initialized = 0; if ((res =i2c_add_driver(&lm78_driver))) { printk("sis5595.o: Driver registration failed, module not inserted.\n"); lm78_cleanup(); return res; } lm78_initialized ++; return 0; } int lm78_cleanup(void) { int res; if (lm78_initialized >= 1) { if ((res = i2c_del_driver(&lm78_driver))) { printk("sis5595.o: Driver deregistration failed, module not removed.\n"); return res; } lm78_initialized --; } return 0; } #ifdef MODULE MODULE_AUTHOR("Kyösti Mälkki "); MODULE_DESCRIPTION("SiS 5595 Sensor device"); int init_module(void) { return lm78_init(); } int cleanup_module(void) { return lm78_cleanup(); } #endif /* MODULE */