^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * ultra45_env.c: Driver for Ultra45 PIC16F747 environmental monitor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/hwmon.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/hwmon-sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define DRV_MODULE_VERSION "0.1"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) MODULE_DESCRIPTION("Ultra45 environmental monitor driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) MODULE_VERSION(DRV_MODULE_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /* PIC device registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define REG_CMD 0x00UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define REG_CMD_RESET 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define REG_CMD_ESTAR 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define REG_STAT 0x01UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define REG_STAT_FWVER 0xf0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define REG_STAT_TGOOD 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define REG_STAT_STALE 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define REG_STAT_BUSY 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define REG_STAT_FAULT 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define REG_DATA 0x40UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define REG_ADDR 0x41UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define REG_SIZE 0x42UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* Registers accessed indirectly via REG_DATA/REG_ADDR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define IREG_FAN0 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define IREG_FAN1 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define IREG_FAN2 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define IREG_FAN3 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define IREG_FAN4 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define IREG_FAN5 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define IREG_LCL_TEMP 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define IREG_RMT1_TEMP 0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define IREG_RMT2_TEMP 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define IREG_RMT3_TEMP 0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define IREG_LM95221_TEMP 0x0a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define IREG_FIRE_TEMP 0x0b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define IREG_LSI1064_TEMP 0x0c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define IREG_FRONT_TEMP 0x0d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define IREG_FAN_STAT 0x0e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define IREG_VCORE0 0x0f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define IREG_VCORE1 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define IREG_VMEM0 0x11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define IREG_VMEM1 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define IREG_PSU_TEMP 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct env {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) void __iomem *regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct device *hwmon_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static u8 env_read(struct env *p, u8 ireg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) u8 ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) spin_lock(&p->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) writeb(ireg, p->regs + REG_ADDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) ret = readb(p->regs + REG_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) spin_unlock(&p->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static void env_write(struct env *p, u8 ireg, u8 val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) spin_lock(&p->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) writeb(ireg, p->regs + REG_ADDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) writeb(val, p->regs + REG_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) spin_unlock(&p->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * There seems to be a adr7462 providing these values, thus a lot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * of these calculations are borrowed from the adt7470 driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define FAN_PERIOD_INVALID (0xff << 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static ssize_t show_fan_speed(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) int fan_nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct env *p = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int rpm, period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) val = env_read(p, IREG_FAN0 + fan_nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) period = (int) val << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (FAN_DATA_VALID(period))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) rpm = FAN_PERIOD_TO_RPM(period);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) rpm = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return sprintf(buf, "%d\n", rpm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) static ssize_t set_fan_speed(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) int fan_nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) unsigned long rpm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) struct env *p = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) int period;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) err = kstrtoul(buf, 10, &rpm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (!rpm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) period = FAN_RPM_TO_PERIOD(rpm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) val = period >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) env_write(p, IREG_FAN0 + fan_nr, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static ssize_t show_fan_fault(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) int fan_nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) struct env *p = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) u8 val = env_read(p, IREG_FAN_STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return sprintf(buf, "%d\n", (val & (1 << fan_nr)) ? 1 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #define fan(index) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static SENSOR_DEVICE_ATTR(fan##index##_speed, S_IRUGO | S_IWUSR, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) show_fan_speed, set_fan_speed, index); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static SENSOR_DEVICE_ATTR(fan##index##_fault, S_IRUGO, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) show_fan_fault, NULL, index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) fan(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) fan(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) fan(2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) fan(3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) fan(4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) static SENSOR_DEVICE_ATTR(psu_fan_fault, S_IRUGO, show_fan_fault, NULL, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) int temp_nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct env *p = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) s8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) val = env_read(p, IREG_LCL_TEMP + temp_nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) return sprintf(buf, "%d\n", ((int) val) - 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static SENSOR_DEVICE_ATTR(adt7462_local_temp, S_IRUGO, show_temp, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) static SENSOR_DEVICE_ATTR(cpu0_temp, S_IRUGO, show_temp, NULL, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) static SENSOR_DEVICE_ATTR(cpu1_temp, S_IRUGO, show_temp, NULL, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static SENSOR_DEVICE_ATTR(motherboard_temp, S_IRUGO, show_temp, NULL, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static SENSOR_DEVICE_ATTR(lm95221_local_temp, S_IRUGO, show_temp, NULL, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static SENSOR_DEVICE_ATTR(fire_temp, S_IRUGO, show_temp, NULL, 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static SENSOR_DEVICE_ATTR(lsi1064_local_temp, S_IRUGO, show_temp, NULL, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) static SENSOR_DEVICE_ATTR(front_panel_temp, S_IRUGO, show_temp, NULL, 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static SENSOR_DEVICE_ATTR(psu_temp, S_IRUGO, show_temp, NULL, 13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static ssize_t show_stat_bit(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) int index = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) struct env *p = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) val = readb(p->regs + REG_STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) return sprintf(buf, "%d\n", (val & (1 << index)) ? 1 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) static SENSOR_DEVICE_ATTR(fan_failure, S_IRUGO, show_stat_bit, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) static SENSOR_DEVICE_ATTR(env_bus_busy, S_IRUGO, show_stat_bit, NULL, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static SENSOR_DEVICE_ATTR(env_data_stale, S_IRUGO, show_stat_bit, NULL, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) static SENSOR_DEVICE_ATTR(tpm_self_test_passed, S_IRUGO, show_stat_bit, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static ssize_t show_fwver(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct env *p = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) val = readb(p->regs + REG_STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return sprintf(buf, "%d\n", val >> 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) static SENSOR_DEVICE_ATTR(firmware_version, S_IRUGO, show_fwver, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) static ssize_t show_name(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return sprintf(buf, "ultra45\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) static struct attribute *env_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) &sensor_dev_attr_fan0_speed.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) &sensor_dev_attr_fan0_fault.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) &sensor_dev_attr_fan1_speed.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) &sensor_dev_attr_fan1_fault.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) &sensor_dev_attr_fan2_speed.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) &sensor_dev_attr_fan2_fault.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) &sensor_dev_attr_fan3_speed.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) &sensor_dev_attr_fan3_fault.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) &sensor_dev_attr_fan4_speed.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) &sensor_dev_attr_fan4_fault.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) &sensor_dev_attr_psu_fan_fault.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) &sensor_dev_attr_adt7462_local_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) &sensor_dev_attr_cpu0_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) &sensor_dev_attr_cpu1_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) &sensor_dev_attr_motherboard_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) &sensor_dev_attr_lm95221_local_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) &sensor_dev_attr_fire_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) &sensor_dev_attr_lsi1064_local_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) &sensor_dev_attr_front_panel_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) &sensor_dev_attr_psu_temp.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) &sensor_dev_attr_fan_failure.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) &sensor_dev_attr_env_bus_busy.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) &sensor_dev_attr_env_data_stale.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) &sensor_dev_attr_tpm_self_test_passed.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) &sensor_dev_attr_firmware_version.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) &sensor_dev_attr_name.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) static const struct attribute_group env_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) .attrs = env_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) static int env_probe(struct platform_device *op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) struct env *p = devm_kzalloc(&op->dev, sizeof(*p), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) int err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) spin_lock_init(&p->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) p->regs = of_ioremap(&op->resource[0], 0, REG_SIZE, "pic16f747");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if (!p->regs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) err = sysfs_create_group(&op->dev.kobj, &env_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) goto out_iounmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) p->hwmon_dev = hwmon_device_register(&op->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (IS_ERR(p->hwmon_dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) err = PTR_ERR(p->hwmon_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) goto out_sysfs_remove_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) platform_set_drvdata(op, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) out_sysfs_remove_group:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) sysfs_remove_group(&op->dev.kobj, &env_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) out_iounmap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) of_iounmap(&op->resource[0], p->regs, REG_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) static int env_remove(struct platform_device *op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) struct env *p = platform_get_drvdata(op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (p) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) sysfs_remove_group(&op->dev.kobj, &env_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) hwmon_device_unregister(p->hwmon_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) of_iounmap(&op->resource[0], p->regs, REG_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) static const struct of_device_id env_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) .name = "env-monitor",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) .compatible = "SUNW,ebus-pic16f747-env",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) MODULE_DEVICE_TABLE(of, env_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) static struct platform_driver env_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) .name = "ultra45_env",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) .of_match_table = env_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) .probe = env_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) .remove = env_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) module_platform_driver(env_driver);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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