Lines Matching +full:south +full:- +full:field
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * vt8231.c - Part of lm_sensors, Linux kernel modules
12 * Supports VIA VT8231 South Bridge embedded sensors
24 #include <linux/hwmon-sysfs.h>
25 #include <linux/hwmon-vid.h>
50 * -------- -------- -------- ------
63 /* fans numbered 0-1 */
67 /* Voltage inputs numbered 0-5 */
74 * Temperatures are numbered 1-6 according to the Linux kernel specification.
89 #define TEMP_FROM_REG(reg) (((253 * 4 - (reg)) * 550 + 105) / 210)
90 #define TEMP_MAXMIN_FROM_REG(reg) (((253 - (reg)) * 2200 + 105) / 210)
91 #define TEMP_MAXMIN_TO_REG(val) (253 - ((val) * 210 + 1100) / 2200)
102 * temps 0-5 as numbered in VIA datasheet - see later for mapping to Linux
107 /* voltages 0-5 */
115 * for the thermistor curves are board-specific and must go in the
122 * All the on-chip hardware temperature comparisons for the alarms are only
123 * 8-bits wide, and compare against the 8 MSBs of the temperature. The bits
172 return inb_p(data->addr + reg); in vt8231_read_value()
178 outb_p(value, data->addr + reg); in vt8231_write_value()
186 int nr = sensor_attr->index; in in_show()
189 return sprintf(buf, "%d\n", ((data->in[nr] - 3) * 10000) / 958); in in_show()
196 int nr = sensor_attr->index; in in_min_show()
199 return sprintf(buf, "%d\n", ((data->in_min[nr] - 3) * 10000) / 958); in in_min_show()
206 int nr = sensor_attr->index; in in_max_show()
209 return sprintf(buf, "%d\n", (((data->in_max[nr] - 3) * 10000) / 958)); in in_max_show()
216 int nr = sensor_attr->index; in in_min_store()
225 mutex_lock(&data->update_lock); in in_min_store()
226 data->in_min[nr] = clamp_val(((val * 958) / 10000) + 3, 0, 255); in in_min_store()
227 vt8231_write_value(data, regvoltmin[nr], data->in_min[nr]); in in_min_store()
228 mutex_unlock(&data->update_lock); in in_min_store()
236 int nr = sensor_attr->index; in in_max_store()
245 mutex_lock(&data->update_lock); in in_max_store()
246 data->in_max[nr] = clamp_val(((val * 958) / 10000) + 3, 0, 255); in in_max_store()
247 vt8231_write_value(data, regvoltmax[nr], data->in_max[nr]); in in_max_store()
248 mutex_unlock(&data->update_lock); in in_max_store()
259 (((data->in[5] - 3) * 10000 * 54) / (958 * 34))); in in5_input_show()
268 (((data->in_min[5] - 3) * 10000 * 54) / (958 * 34))); in in5_min_show()
277 (((data->in_max[5] - 3) * 10000 * 54) / (958 * 34))); in in5_max_show()
292 mutex_lock(&data->update_lock); in in5_min_store()
293 data->in_min[5] = clamp_val(((val * 958 * 34) / (10000 * 54)) + 3, in in5_min_store()
295 vt8231_write_value(data, regvoltmin[5], data->in_min[5]); in in5_min_store()
296 mutex_unlock(&data->update_lock); in in5_min_store()
312 mutex_lock(&data->update_lock); in in5_max_store()
313 data->in_max[5] = clamp_val(((val * 958 * 34) / (10000 * 54)) + 3, in in5_max_store()
315 vt8231_write_value(data, regvoltmax[5], data->in_max[5]); in in5_max_store()
316 mutex_unlock(&data->update_lock); in in5_max_store()
345 return sprintf(buf, "%d\n", data->temp[0] * 250); in temp1_input_show()
352 return sprintf(buf, "%d\n", data->temp_max[0] * 1000); in temp1_max_show()
359 return sprintf(buf, "%d\n", data->temp_min[0] * 1000); in temp1_max_hyst_show()
374 mutex_lock(&data->update_lock); in temp1_max_store()
375 data->temp_max[0] = clamp_val((val + 500) / 1000, 0, 255); in temp1_max_store()
376 vt8231_write_value(data, regtempmax[0], data->temp_max[0]); in temp1_max_store()
377 mutex_unlock(&data->update_lock); in temp1_max_store()
392 mutex_lock(&data->update_lock); in temp1_max_hyst_store()
393 data->temp_min[0] = clamp_val((val + 500) / 1000, 0, 255); in temp1_max_hyst_store()
394 vt8231_write_value(data, regtempmin[0], data->temp_min[0]); in temp1_max_hyst_store()
395 mutex_unlock(&data->update_lock); in temp1_max_hyst_store()
403 int nr = sensor_attr->index; in temp_show()
405 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); in temp_show()
412 int nr = sensor_attr->index; in temp_max_show()
414 return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_max[nr])); in temp_max_show()
421 int nr = sensor_attr->index; in temp_min_show()
423 return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_min[nr])); in temp_min_show()
431 int nr = sensor_attr->index; in temp_max_store()
440 mutex_lock(&data->update_lock); in temp_max_store()
441 data->temp_max[nr] = clamp_val(TEMP_MAXMIN_TO_REG(val), 0, 255); in temp_max_store()
442 vt8231_write_value(data, regtempmax[nr], data->temp_max[nr]); in temp_max_store()
443 mutex_unlock(&data->update_lock); in temp_max_store()
451 int nr = sensor_attr->index; in temp_min_store()
460 mutex_lock(&data->update_lock); in temp_min_store()
461 data->temp_min[nr] = clamp_val(TEMP_MAXMIN_TO_REG(val), 0, 255); in temp_min_store()
462 vt8231_write_value(data, regtempmin[nr], data->temp_min[nr]); in temp_min_store()
463 mutex_unlock(&data->update_lock); in temp_min_store()
468 * Note that these map the Linux temperature sensor numbering (1-6) to the VIA
469 * temperature sensor numbering (0-5)
497 int nr = sensor_attr->index; in fan_show()
499 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], in fan_show()
500 DIV_FROM_REG(data->fan_div[nr]))); in fan_show()
507 int nr = sensor_attr->index; in fan_min_show()
509 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], in fan_min_show()
510 DIV_FROM_REG(data->fan_div[nr]))); in fan_min_show()
517 int nr = sensor_attr->index; in fan_div_show()
519 return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); in fan_div_show()
527 int nr = sensor_attr->index; in fan_min_store()
536 mutex_lock(&data->update_lock); in fan_min_store()
537 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); in fan_min_store()
538 vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]); in fan_min_store()
539 mutex_unlock(&data->update_lock); in fan_min_store()
550 int nr = sensor_attr->index; in fan_div_store()
552 long min = FAN_FROM_REG(data->fan_min[nr], in fan_div_store()
553 DIV_FROM_REG(data->fan_div[nr])); in fan_div_store()
560 mutex_lock(&data->update_lock); in fan_div_store()
563 data->fan_div[nr] = 0; in fan_div_store()
566 data->fan_div[nr] = 1; in fan_div_store()
569 data->fan_div[nr] = 2; in fan_div_store()
572 data->fan_div[nr] = 3; in fan_div_store()
578 mutex_unlock(&data->update_lock); in fan_div_store()
579 return -EINVAL; in fan_div_store()
583 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); in fan_div_store()
584 vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]); in fan_div_store()
586 old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4); in fan_div_store()
588 mutex_unlock(&data->update_lock); in fan_div_store()
604 return sprintf(buf, "%d\n", data->alarms); in alarms_show()
611 int bitnr = to_sensor_dev_attr(attr)->index; in alarm_show()
613 return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); in alarm_show()
634 return sprintf(buf, "%s\n", data->name); in name_show()
786 if (!devm_request_region(&pdev->dev, res->start, VT8231_EXTENT, in vt8231_probe()
788 dev_err(&pdev->dev, "Region 0x%lx-0x%lx already in use!\n", in vt8231_probe()
789 (unsigned long)res->start, (unsigned long)res->end); in vt8231_probe()
790 return -ENODEV; in vt8231_probe()
793 data = devm_kzalloc(&pdev->dev, sizeof(struct vt8231_data), GFP_KERNEL); in vt8231_probe()
795 return -ENOMEM; in vt8231_probe()
798 data->addr = res->start; in vt8231_probe()
799 data->name = "vt8231"; in vt8231_probe()
801 mutex_init(&data->update_lock); in vt8231_probe()
805 err = sysfs_create_group(&pdev->dev.kobj, &vt8231_group); in vt8231_probe()
809 /* Must update device information to find out the config field */ in vt8231_probe()
810 data->uch_config = vt8231_read_value(data, VT8231_REG_UCH_CONFIG); in vt8231_probe()
813 if (ISTEMP(i, data->uch_config)) { in vt8231_probe()
814 err = sysfs_create_group(&pdev->dev.kobj, in vt8231_probe()
822 if (ISVOLT(i, data->uch_config)) { in vt8231_probe()
823 err = sysfs_create_group(&pdev->dev.kobj, in vt8231_probe()
830 data->hwmon_dev = hwmon_device_register(&pdev->dev); in vt8231_probe()
831 if (IS_ERR(data->hwmon_dev)) { in vt8231_probe()
832 err = PTR_ERR(data->hwmon_dev); in vt8231_probe()
839 sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]); in vt8231_probe()
842 sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]); in vt8231_probe()
844 sysfs_remove_group(&pdev->dev.kobj, &vt8231_group); in vt8231_probe()
853 hwmon_device_unregister(data->hwmon_dev); in vt8231_remove()
856 sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]); in vt8231_remove()
859 sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]); in vt8231_remove()
861 sysfs_remove_group(&pdev->dev.kobj, &vt8231_group); in vt8231_remove()
878 mutex_lock(&data->update_lock); in vt8231_update_device()
880 if (time_after(jiffies, data->last_updated + HZ + HZ / 2) in vt8231_update_device()
881 || !data->valid) { in vt8231_update_device()
883 if (ISVOLT(i, data->uch_config)) { in vt8231_update_device()
884 data->in[i] = vt8231_read_value(data, in vt8231_update_device()
886 data->in_min[i] = vt8231_read_value(data, in vt8231_update_device()
888 data->in_max[i] = vt8231_read_value(data, in vt8231_update_device()
893 data->fan[i] = vt8231_read_value(data, in vt8231_update_device()
895 data->fan_min[i] = vt8231_read_value(data, in vt8231_update_device()
903 if (ISTEMP(i, data->uch_config)) { in vt8231_update_device()
904 data->temp[i] = (vt8231_read_value(data, in vt8231_update_device()
907 data->temp_max[i] = vt8231_read_value(data, in vt8231_update_device()
909 data->temp_min[i] = vt8231_read_value(data, in vt8231_update_device()
915 data->fan_div[0] = (i >> 4) & 0x03; in vt8231_update_device()
916 data->fan_div[1] = i >> 6; in vt8231_update_device()
917 data->alarms = vt8231_read_value(data, VT8231_REG_ALARM1) | in vt8231_update_device()
921 if (!data->fan[0] && data->fan_min[0]) in vt8231_update_device()
922 data->alarms |= 0x40; in vt8231_update_device()
923 else if (data->fan[0] && !data->fan_min[0]) in vt8231_update_device()
924 data->alarms &= ~0x40; in vt8231_update_device()
926 if (!data->fan[1] && data->fan_min[1]) in vt8231_update_device()
927 data->alarms |= 0x80; in vt8231_update_device()
928 else if (data->fan[1] && !data->fan_min[1]) in vt8231_update_device()
929 data->alarms &= ~0x80; in vt8231_update_device()
931 data->last_updated = jiffies; in vt8231_update_device()
932 data->valid = 1; in vt8231_update_device()
935 mutex_unlock(&data->update_lock); in vt8231_update_device()
944 .end = address + VT8231_EXTENT - 1, in vt8231_device_add()
956 err = -ENOMEM; in vt8231_device_add()
987 dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", in vt8231_pci_probe()
992 return -ENODEV; in vt8231_pci_probe()
997 return -ENODEV; in vt8231_pci_probe()
999 address = val & ~(VT8231_EXTENT - 1); in vt8231_pci_probe()
1001 dev_err(&dev->dev, "base address not set - upgrade BIOS or use force_addr=0xaddr\n"); in vt8231_pci_probe()
1002 return -ENODEV; in vt8231_pci_probe()
1007 return -ENODEV; in vt8231_pci_probe()
1010 dev_warn(&dev->dev, "enabling sensors\n"); in vt8231_pci_probe()
1014 return -ENODEV; in vt8231_pci_probe()
1035 return -ENODEV; in vt8231_pci_probe()
1040 return -ENODEV; in vt8231_pci_probe()