/* vt8231.c - Part of lm_sensors, Linux kernel modules for hardware monitoring Copyright (c) 2002 Mark D. Studebaker 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 VIA VT8231 Super I/O embedded sensors */ #include #include #include #include #include #include #include #include #include #include #include #include #include "version.h" #include "sensors_vid.h" static int force_addr = 0; MODULE_PARM(force_addr, "i"); MODULE_PARM_DESC(force_addr, "Initialize the base address of the sensors"); static unsigned short normal_i2c[] = { SENSORS_I2C_END }; static unsigned short normal_i2c_range[] = { SENSORS_I2C_END }; static unsigned int normal_isa[] = { 0x0000, SENSORS_ISA_END }; static unsigned int normal_isa_range[] = { SENSORS_ISA_END }; SENSORS_INSMOD_1(vt8231); #define VIA686A_EXTENT 0x80 #define VIA686A_BASE_REG 0x70 #define VIA686A_ENABLE_REG 0x74 /* pwm numbered 1-2 */ #define VT8231_REG_PWM(nr) (0x5f + (nr)) #define VT8231_REG_PWM_CTL 0x51 /* The VT8231 registers */ /* We define the sensors as follows. Somewhat convoluted to minimize changes from via686a. Sensor Voltage Mode Temp Mode -------- ------------ --------- Reading 1 temp3 Reading 3 temp1 not in vt8231 UCH1/Reading2 in0 temp2 UCH2 in1 temp4 UCH3 in2 temp5 UCH4 in3 temp6 UCH5 in4 temp7 3.3V in5 -12V in6 not in vt8231 */ /* ins numbered 0-6 */ #define VT8231_REG_IN_MAX(nr) ((nr)==0 ? 0x3d : 0x29 + ((nr) * 2)) #define VT8231_REG_IN_MIN(nr) ((nr)==0 ? 0x3e : 0x2a + ((nr) * 2)) #define VT8231_REG_IN(nr) (0x21 + (nr)) /* fans numbered 1-2 */ #define VT8231_REG_FAN_MIN(nr) (0x3a + (nr)) #define VT8231_REG_FAN(nr) (0x28 + (nr)) static const u8 regtemp[] = { 0x20, 0x21, 0x1f, 0x22, 0x23, 0x24, 0x25 }; static const u8 regover[] = { 0x39, 0x3d, 0x1d, 0x2b, 0x2d, 0x2f, 0x31 }; static const u8 reghyst[] = { 0x3a, 0x3e, 0x1e, 0x2c, 0x2e, 0x30, 0x32 }; /* temps numbered 1-7 */ #define VT8231_REG_TEMP(nr) (regtemp[(nr) - 1]) #define VT8231_REG_TEMP_OVER(nr) (regover[(nr) - 1]) #define VT8231_REG_TEMP_HYST(nr) (reghyst[(nr) - 1]) #define VT8231_REG_TEMP_LOW3 0x4b /* bits 7-6 */ #define VT8231_REG_TEMP_LOW2 0x49 /* bits 5-4 */ #define VT8231_REG_TEMP_LOW47 0x4d #define VT8231_REG_CONFIG 0x40 #define VT8231_REG_ALARM1 0x41 #define VT8231_REG_ALARM2 0x42 #define VT8231_REG_VID 0x45 #define VT8231_REG_FANDIV 0x47 #define VT8231_REG_UCH_CONFIG 0x4a #define VT8231_REG_TEMP1_CONFIG 0x4b #define VT8231_REG_TEMP2_CONFIG 0x4c /* temps 1-7; voltages 0-6 */ #define ISTEMP(i, ch_config) ((i) == 1 ? 1 : \ (i) == 3 ? 1 : \ (i) == 2 ? ((ch_config) >> 1) & 0x01 : \ ((ch_config) >> ((i)-1)) & 0x01) #define ISVOLT(i, ch_config) ((i) > 4 ? 1 : !(((ch_config) >> ((i)+2)) & 0x01)) #define DIV_FROM_REG(val) (1 << (val)) #define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1) #define PWM_FROM_REG(val) (val) #define PWM_TO_REG(val) SENSORS_LIMIT((val), 0, 255) #define TEMP_FROM_REG(val) ((val)*10) #define TEMP_FROM_REG10(val) (((val)*10)/4) #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-5)/10):\ ((val)+5)/10),0,255)) #define IN_FROM_REG(val) /*(((val)*10+5)/10)*/ (val) #define IN_TO_REG(val) (SENSORS_LIMIT((((val) * 10 + 5)/10),0,255)) /********* FAN RPM CONVERSIONS ********/ /* But this chip saturates back at 0, not at 255 like all the other chips. So, 0 means 0 RPM */ static inline u8 FAN_TO_REG(long rpm, int div) { if (rpm == 0) return 0; rpm = SENSORS_LIMIT(rpm, 1, 1000000); return SENSORS_LIMIT((1310720 + rpm * div / 2) / (rpm * div), 1, 255); } #define MIN_TO_REG(a,b) FAN_TO_REG(a,b) #define FAN_FROM_REG(val,div) ((val)==0?0:(val)==255?0:1310720/((val)*(div))) struct vt8231_data { struct semaphore lock; int sysctl_id; 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 */ u16 temp[7]; /* Register value 10 bit */ u8 temp_over[7]; /* Register value */ u8 temp_hyst[7]; /* Register value */ u8 fan[2]; /* Register value */ u8 fan_min[2]; /* Register value */ u8 fan_div[2]; /* Register encoding, shifted right */ u16 alarms; /* Register encoding */ u8 pwm[2]; /* Register value */ u8 pwm_ctl; /* Register value */ u8 vid; /* Register encoding */ u8 vrm; u8 uch_config; }; static int vt8231_attach_adapter(struct i2c_adapter *adapter); static int vt8231_detect(struct i2c_adapter *adapter, int address, unsigned short flags, int kind); static int vt8231_detach_client(struct i2c_client *client); static inline int vt_rdval(struct i2c_client *client, u8 register); static inline void vt8231_write_value(struct i2c_client *client, u8 register, u8 value); static void vt8231_update_client(struct i2c_client *client); static void vt8231_init_client(struct i2c_client *client); static int vt8231_find(int *address); static void vt8231_fan(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void vt8231_alarms(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void vt8231_fan_div(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void vt8231_in(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void vt8231_pwm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void vt8231_vid(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void vt8231_vrm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void vt8231_uch(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void vt8231_temp(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static int vt8231_id = 0; static struct i2c_driver vt8231_driver = { .owner = THIS_MODULE, .name = "VT8231 sensors driver", .id = I2C_DRIVERID_VT8231, .flags = I2C_DF_NOTIFY, .attach_adapter = vt8231_attach_adapter, .detach_client = vt8231_detach_client, }; /* -- SENSORS SYSCTL START -- */ #define VT8231_SYSCTL_IN0 1000 #define VT8231_SYSCTL_IN1 1001 #define VT8231_SYSCTL_IN2 1002 #define VT8231_SYSCTL_IN3 1003 #define VT8231_SYSCTL_IN4 1004 #define VT8231_SYSCTL_IN5 1005 #define VT8231_SYSCTL_IN6 1006 #define VT8231_SYSCTL_FAN1 1101 #define VT8231_SYSCTL_FAN2 1102 #define VT8231_SYSCTL_TEMP 1200 #define VT8231_SYSCTL_TEMP2 1201 #define VT8231_SYSCTL_TEMP3 1202 #define VT8231_SYSCTL_TEMP4 1203 #define VT8231_SYSCTL_TEMP5 1204 #define VT8231_SYSCTL_TEMP6 1205 #define VT8231_SYSCTL_TEMP7 1206 #define VT8231_SYSCTL_VID 1300 #define VT8231_SYSCTL_PWM1 1401 #define VT8231_SYSCTL_PWM2 1402 #define VT8231_SYSCTL_VRM 1600 #define VT8231_SYSCTL_UCH 1700 #define VT8231_SYSCTL_FAN_DIV 2000 #define VT8231_SYSCTL_ALARMS 2001 #define VT8231_ALARM_IN1 0x01 #define VT8231_ALARM_IN2 0x02 #define VT8231_ALARM_IN5 0x04 #define VT8231_ALARM_IN3 0x08 #define VT8231_ALARM_TEMP 0x10 #define VT8231_ALARM_FAN1 0x40 #define VT8231_ALARM_FAN2 0x80 #define VT8231_ALARM_IN4 0x100 #define VT8231_ALARM_IN6 0x200 #define VT8231_ALARM_TEMP2 0x800 #define VT8231_ALARM_CHAS 0x1000 #define VT8231_ALARM_TEMP3 0x8000 /* duplicates */ #define VT8231_ALARM_IN0 VT8231_ALARM_TEMP #define VT8231_ALARM_TEMP4 VT8231_ALARM_IN1 #define VT8231_ALARM_TEMP5 VT8231_ALARM_IN2 #define VT8231_ALARM_TEMP6 VT8231_ALARM_IN3 #define VT8231_ALARM_TEMP7 VT8231_ALARM_IN4 /* -- SENSORS SYSCTL END -- */ static ctl_table vt8231_dir_table_template[] = { {VT8231_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_in}, {VT8231_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_in}, {VT8231_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_in}, {VT8231_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_in}, {VT8231_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_in}, {VT8231_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_in}, {VT8231_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_in}, {VT8231_SYSCTL_TEMP, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_temp}, {VT8231_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_temp}, {VT8231_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_temp}, {VT8231_SYSCTL_TEMP4, "temp4", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_temp}, {VT8231_SYSCTL_TEMP5, "temp5", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_temp}, {VT8231_SYSCTL_TEMP6, "temp6", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_temp}, {VT8231_SYSCTL_TEMP7, "temp7", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_temp}, {VT8231_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_fan}, {VT8231_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_fan}, {VT8231_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_fan_div}, {VT8231_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_alarms}, {VT8231_SYSCTL_PWM1, "pwm1", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_pwm}, {VT8231_SYSCTL_PWM2, "pwm2", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_pwm}, {VT8231_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_vid}, {VT8231_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_vrm}, {VT8231_SYSCTL_UCH, "uch_config", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &vt8231_uch}, {0} }; static struct pci_dev *s_bridge; static int vt8231_attach_adapter(struct i2c_adapter *adapter) { return i2c_detect(adapter, &addr_data, vt8231_detect); } /* Locate chip and get correct base address */ static int vt8231_find(int *address) { u16 val; if (!pci_present()) return -ENODEV; if (!(s_bridge = pci_find_device(PCI_VENDOR_ID_VIA, 0x8235, NULL))) return -ENODEV; if (PCIBIOS_SUCCESSFUL != pci_read_config_word(s_bridge, VIA686A_BASE_REG, &val)) return -ENODEV; *address = val & ~(VIA686A_EXTENT - 1); if (*address == 0 && force_addr == 0) { printk("vt8231.o: base address not set - upgrade BIOS or use force_addr=0xaddr\n"); return -ENODEV; } if (force_addr) *address = force_addr; /* so detect will get called */ return 0; } int vt8231_detect(struct i2c_adapter *adapter, int address, unsigned short flags, int kind) { int i; struct i2c_client *new_client; struct vt8231_data *data; int err = 0; const char *type_name = "vt8231"; u16 val; if (!i2c_is_isa_adapter(adapter)) { return 0; } /* 8231 requires multiple of 256 */ if(force_addr) address = force_addr & 0xFF00; if (check_region(address, VIA686A_EXTENT)) { printk("vt8231.o: region 0x%x already in use!\n", address); return -ENODEV; } if(force_addr) { printk("vt8231.o: forcing ISA address 0x%04X\n", address); if (PCIBIOS_SUCCESSFUL != pci_write_config_word(s_bridge, VIA686A_BASE_REG, address)) return -ENODEV; } if (PCIBIOS_SUCCESSFUL != pci_read_config_word(s_bridge, VIA686A_ENABLE_REG, &val)) return -ENODEV; if (!(val & 0x0001)) { printk("vt8231.o: enabling sensors\n"); if (PCIBIOS_SUCCESSFUL != pci_write_config_word(s_bridge, VIA686A_ENABLE_REG, val | 0x0001)) return -ENODEV; } if (!(new_client = kmalloc(sizeof(struct i2c_client) + sizeof(struct vt8231_data), GFP_KERNEL))) { err = -ENOMEM; goto ERROR0; } data = (struct vt8231_data *) (new_client + 1); new_client->addr = address; init_MUTEX(&data->lock); new_client->data = data; new_client->adapter = adapter; new_client->driver = &vt8231_driver; new_client->flags = 0; /* Reserve the ISA region */ request_region(address, VIA686A_EXTENT, "vt8231-sensors"); /* Fill in the remaining client fields and put into the global list */ strcpy(new_client->name, "Via 8231 Integrated Sensors"); new_client->id = vt8231_id++; 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 ERROR3; /* Register a new directory entry with module sensors */ if ((i = i2c_register_entry((struct i2c_client *) new_client, type_name, vt8231_dir_table_template)) < 0) { err = i; goto ERROR4; } data->sysctl_id = i; vt8231_init_client(new_client); return 0; ERROR4: i2c_detach_client(new_client); ERROR3: release_region(address, VIA686A_EXTENT); kfree(new_client); ERROR0: return err; } static int vt8231_detach_client(struct i2c_client *client) { int err; i2c_deregister_entry(((struct vt8231_data *) (client->data))-> sysctl_id); if ((err = i2c_detach_client(client))) { printk ("vt8231.o: Client deregistration failed, client not detached.\n"); return err; } release_region(client->addr, VIA686A_EXTENT); kfree(client); return 0; } static inline int vt_rdval(struct i2c_client *client, u8 reg) { return (inb_p(client->addr + reg)); } static inline void vt8231_write_value(struct i2c_client *client, u8 reg, u8 value) { outb_p(value, client->addr + reg); } static void vt8231_init_client(struct i2c_client *client) { struct vt8231_data *data = client->data; data->vrm = DEFAULT_VRM; /* set "default" interrupt mode for alarms, which isn't the default */ vt8231_write_value(client, VT8231_REG_TEMP1_CONFIG, 0); vt8231_write_value(client, VT8231_REG_TEMP2_CONFIG, 0); } static void vt8231_update_client(struct i2c_client *client) { struct vt8231_data *data = client->data; int i, j; down(&data->update_lock); if ((jiffies - data->last_updated > HZ + HZ / 2) || (jiffies < data->last_updated) || !data->valid) { data->uch_config = vt_rdval(client, VT8231_REG_UCH_CONFIG); for (i = 0; i <= 6; i++) { if(ISVOLT(i, data->uch_config)) { data->in[i] = vt_rdval(client, VT8231_REG_IN(i)); data->in_min[i] = vt_rdval(client, VT8231_REG_IN_MIN(i)); data->in_max[i] = vt_rdval(client, VT8231_REG_IN_MAX(i)); } else { data->in[i] = 0; data->in_min[i] = 0; data->in_max[i] = 0; } } for (i = 1; i <= 2; i++) { data->fan[i - 1] = vt_rdval(client, VT8231_REG_FAN(i)); data->fan_min[i - 1] = vt_rdval(client, VT8231_REG_FAN_MIN(i)); } for (i = 1; i <= 7; i++) { if(ISTEMP(i, data->uch_config)) { data->temp[i - 1] = vt_rdval(client, VT8231_REG_TEMP(i)) << 2; switch(i) { case 1: /* ? */ j = 0; break; case 2: j = (vt_rdval(client, VT8231_REG_TEMP_LOW2) & 0x30) >> 4; break; case 3: j = (vt_rdval(client, VT8231_REG_TEMP_LOW3) & 0xc0) >> 6; break; case 4: case 5: case 6: case 7: default: j = (vt_rdval(client, VT8231_REG_TEMP_LOW47) >> ((i-4)*2)) & 0x03; break; } data->temp[i - 1] |= j; data->temp_over[i - 1] = vt_rdval(client, VT8231_REG_TEMP_OVER(i)); data->temp_hyst[i - 1] = vt_rdval(client, VT8231_REG_TEMP_HYST(i)); } else { data->temp[i - 1] = 0; data->temp_over[i - 1] = 0; data->temp_hyst[i - 1] = 0; } } for (i = 1; i <= 2; i++) { data->fan[i - 1] = vt_rdval(client, VT8231_REG_FAN(i)); data->fan_min[i - 1] = vt_rdval(client, VT8231_REG_FAN_MIN(i)); data->pwm[i - 1] = vt_rdval(client, VT8231_REG_PWM(i)); } data->pwm_ctl = vt_rdval(client, VT8231_REG_PWM_CTL); i = vt_rdval(client, VT8231_REG_FANDIV); data->fan_div[0] = (i >> 4) & 0x03; data->fan_div[1] = i >> 6; data->alarms = vt_rdval(client, VT8231_REG_ALARM1) | (vt_rdval(client, VT8231_REG_ALARM2) << 8); data->vid= vt_rdval(client, VT8231_REG_VID) & 0x1f; data->last_updated = jiffies; data->valid = 1; } up(&data->update_lock); } void vt8231_in(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; int nr = ctl_name - VT8231_SYSCTL_IN0; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 2; else if (operation == SENSORS_PROC_REAL_READ) { vt8231_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]); vt8231_write_value(client, VT8231_REG_IN_MIN(nr), data->in_min[nr]); } if (*nrels_mag >= 2) { data->in_max[nr] = IN_TO_REG(results[1]); vt8231_write_value(client, VT8231_REG_IN_MAX(nr), data->in_max[nr]); } } } void vt8231_fan(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; int nr = ctl_name - VT8231_SYSCTL_FAN1 + 1; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { vt8231_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] = MIN_TO_REG(results[0], DIV_FROM_REG (data-> fan_div[nr-1])); vt8231_write_value(client, VT8231_REG_FAN_MIN(nr), data->fan_min[nr - 1]); } } } void vt8231_temp(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; int nr = ctl_name - VT8231_SYSCTL_TEMP; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 1; else if (operation == SENSORS_PROC_REAL_READ) { vt8231_update_client(client); results[0] = TEMP_FROM_REG(data->temp_over[nr]); results[1] = TEMP_FROM_REG(data->temp_hyst[nr]); results[2] = TEMP_FROM_REG10(data->temp[nr]); *nrels_mag = 3; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->temp_over[nr] = TEMP_TO_REG(results[0]); vt8231_write_value(client, VT8231_REG_TEMP_OVER(nr + 1), data->temp_over[nr]); } if (*nrels_mag >= 2) { data->temp_hyst[nr] = TEMP_TO_REG(results[1]); vt8231_write_value(client, VT8231_REG_TEMP_HYST(nr + 1), data->temp_hyst[nr]); } } } void vt8231_alarms(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { vt8231_update_client(client); results[0] = data->alarms; *nrels_mag = 1; } } void vt8231_fan_div(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; int old; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { vt8231_update_client(client); results[0] = DIV_FROM_REG(data->fan_div[0]); results[1] = DIV_FROM_REG(data->fan_div[1]); *nrels_mag = 2; } else if (operation == SENSORS_PROC_REAL_WRITE) { old = vt_rdval(client, VT8231_REG_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); vt8231_write_value(client, VT8231_REG_FANDIV, old); } } } void vt8231_pwm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; int nr = 1 + ctl_name - VT8231_SYSCTL_PWM1; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { vt8231_update_client(client); results[0] = PWM_FROM_REG(data->pwm[nr - 1]); results[1] = (data->pwm_ctl >> (3 + (4 * (nr - 1)))) & 1; *nrels_mag = 2; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->pwm[nr - 1] = PWM_TO_REG(results[0]); if (*nrels_mag >= 2) { if(results[1]) { data->pwm_ctl |= (0x08 << (4 * (nr - 1))); vt8231_write_value(client, VT8231_REG_PWM_CTL, data->pwm_ctl); } else { data->pwm_ctl &= ~ (0x08 << (4 * (nr - 1))); vt8231_write_value(client, VT8231_REG_PWM_CTL, data->pwm_ctl); } } vt8231_write_value(client, VT8231_REG_PWM(nr), data->pwm[nr - 1]); } } } void vt8231_vid(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 3; else if (operation == SENSORS_PROC_REAL_READ) { vt8231_update_client(client); results[0] = vid_from_reg(data->vid, data->vrm); *nrels_mag = 1; } } void vt8231_vrm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 1; else if (operation == SENSORS_PROC_REAL_READ) { results[0] = data->vrm; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) data->vrm = results[0]; } } void vt8231_uch(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct vt8231_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { results[0] = data->uch_config; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->uch_config = results[0] & 0x7c; vt8231_write_value(client, VT8231_REG_UCH_CONFIG, results[0] & 0x7c); } } } static int __init sm_vt8231_init(void) { int addr; printk("vt8231.o version %s (%s)\n", LM_VERSION, LM_DATE); if (vt8231_find(&addr)) { printk("vt8231.o: VT8231 not detected, module not inserted.\n"); return -ENODEV; } normal_isa[0] = addr; return i2c_add_driver(&vt8231_driver);} static void __exit sm_vt8231_exit(void) { i2c_del_driver(&vt8231_driver); } MODULE_AUTHOR("Mark D. Studebaker "); MODULE_DESCRIPTION("VT8231 sensors"); MODULE_LICENSE("GPL"); module_init(sm_vt8231_init); module_exit(sm_vt8231_exit);