Thomas Gleixner | 1a59d1b8 | 2019-05-27 08:55:05 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 2 | /*************************************************************************** |
Hans de Goede | 312869e | 2012-03-18 13:05:08 +0100 | [diff] [blame] | 3 | * Copyright (C) 2010-2012 Hans de Goede <hdegoede@redhat.com> * |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 4 | * * |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 5 | ***************************************************************************/ |
| 6 | |
| 7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 8 | |
| 9 | #include <linux/module.h> |
| 10 | #include <linux/init.h> |
| 11 | #include <linux/slab.h> |
| 12 | #include <linux/jiffies.h> |
| 13 | #include <linux/platform_device.h> |
| 14 | #include <linux/hwmon.h> |
| 15 | #include <linux/hwmon-sysfs.h> |
| 16 | #include <linux/err.h> |
| 17 | #include <linux/mutex.h> |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 18 | #include "sch56xx-common.h" |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 19 | |
| 20 | #define DRVNAME "sch5627" |
| 21 | #define DEVNAME DRVNAME /* We only support one model */ |
| 22 | |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 23 | #define SCH5627_HWMON_ID 0xa5 |
| 24 | #define SCH5627_COMPANY_ID 0x5c |
| 25 | #define SCH5627_PRIMARY_ID 0xa0 |
| 26 | |
| 27 | #define SCH5627_REG_BUILD_CODE 0x39 |
| 28 | #define SCH5627_REG_BUILD_ID 0x3a |
| 29 | #define SCH5627_REG_HWMON_ID 0x3c |
| 30 | #define SCH5627_REG_HWMON_REV 0x3d |
| 31 | #define SCH5627_REG_COMPANY_ID 0x3e |
| 32 | #define SCH5627_REG_PRIMARY_ID 0x3f |
| 33 | #define SCH5627_REG_CTRL 0x40 |
| 34 | |
| 35 | #define SCH5627_NO_TEMPS 8 |
| 36 | #define SCH5627_NO_FANS 4 |
| 37 | #define SCH5627_NO_IN 5 |
| 38 | |
| 39 | static const u16 SCH5627_REG_TEMP_MSB[SCH5627_NO_TEMPS] = { |
| 40 | 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181 }; |
| 41 | static const u16 SCH5627_REG_TEMP_LSN[SCH5627_NO_TEMPS] = { |
| 42 | 0xE2, 0xE1, 0xE1, 0xE5, 0xE5, 0xE6, 0x182, 0x182 }; |
| 43 | static const u16 SCH5627_REG_TEMP_HIGH_NIBBLE[SCH5627_NO_TEMPS] = { |
| 44 | 0, 0, 1, 1, 0, 0, 0, 1 }; |
| 45 | static const u16 SCH5627_REG_TEMP_HIGH[SCH5627_NO_TEMPS] = { |
| 46 | 0x61, 0x57, 0x59, 0x5B, 0x5D, 0x5F, 0x184, 0x186 }; |
| 47 | static const u16 SCH5627_REG_TEMP_ABS[SCH5627_NO_TEMPS] = { |
| 48 | 0x9B, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x1A8, 0x1A9 }; |
| 49 | |
| 50 | static const u16 SCH5627_REG_FAN[SCH5627_NO_FANS] = { |
| 51 | 0x2C, 0x2E, 0x30, 0x32 }; |
| 52 | static const u16 SCH5627_REG_FAN_MIN[SCH5627_NO_FANS] = { |
| 53 | 0x62, 0x64, 0x66, 0x68 }; |
| 54 | |
| 55 | static const u16 SCH5627_REG_IN_MSB[SCH5627_NO_IN] = { |
| 56 | 0x22, 0x23, 0x24, 0x25, 0x189 }; |
| 57 | static const u16 SCH5627_REG_IN_LSN[SCH5627_NO_IN] = { |
| 58 | 0xE4, 0xE4, 0xE3, 0xE3, 0x18A }; |
| 59 | static const u16 SCH5627_REG_IN_HIGH_NIBBLE[SCH5627_NO_IN] = { |
| 60 | 1, 0, 1, 0, 1 }; |
| 61 | static const u16 SCH5627_REG_IN_FACTOR[SCH5627_NO_IN] = { |
| 62 | 10745, 3660, 9765, 10745, 3660 }; |
| 63 | static const char * const SCH5627_IN_LABELS[SCH5627_NO_IN] = { |
| 64 | "VCC", "VTT", "VBAT", "VTR", "V_IN" }; |
| 65 | |
| 66 | struct sch5627_data { |
| 67 | unsigned short addr; |
| 68 | struct device *hwmon_dev; |
Hans de Goede | 312869e | 2012-03-18 13:05:08 +0100 | [diff] [blame] | 69 | struct sch56xx_watchdog_data *watchdog; |
Hans de Goede | 357b9dc | 2011-05-25 20:43:33 +0200 | [diff] [blame] | 70 | u8 control; |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 71 | u8 temp_max[SCH5627_NO_TEMPS]; |
| 72 | u8 temp_crit[SCH5627_NO_TEMPS]; |
| 73 | u16 fan_min[SCH5627_NO_FANS]; |
| 74 | |
| 75 | struct mutex update_lock; |
Hans de Goede | 357b9dc | 2011-05-25 20:43:33 +0200 | [diff] [blame] | 76 | unsigned long last_battery; /* In jiffies */ |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 77 | char valid; /* !=0 if following fields are valid */ |
| 78 | unsigned long last_updated; /* In jiffies */ |
| 79 | u16 temp[SCH5627_NO_TEMPS]; |
| 80 | u16 fan[SCH5627_NO_FANS]; |
| 81 | u16 in[SCH5627_NO_IN]; |
| 82 | }; |
| 83 | |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 84 | static struct sch5627_data *sch5627_update_device(struct device *dev) |
| 85 | { |
| 86 | struct sch5627_data *data = dev_get_drvdata(dev); |
| 87 | struct sch5627_data *ret = data; |
| 88 | int i, val; |
| 89 | |
| 90 | mutex_lock(&data->update_lock); |
| 91 | |
Hans de Goede | 357b9dc | 2011-05-25 20:43:33 +0200 | [diff] [blame] | 92 | /* Trigger a Vbat voltage measurement every 5 minutes */ |
| 93 | if (time_after(jiffies, data->last_battery + 300 * HZ)) { |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 94 | sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL, |
Hans de Goede | 357b9dc | 2011-05-25 20:43:33 +0200 | [diff] [blame] | 95 | data->control | 0x10); |
| 96 | data->last_battery = jiffies; |
| 97 | } |
| 98 | |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 99 | /* Cache the values for 1 second */ |
| 100 | if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { |
| 101 | for (i = 0; i < SCH5627_NO_TEMPS; i++) { |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 102 | val = sch56xx_read_virtual_reg12(data->addr, |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 103 | SCH5627_REG_TEMP_MSB[i], |
| 104 | SCH5627_REG_TEMP_LSN[i], |
| 105 | SCH5627_REG_TEMP_HIGH_NIBBLE[i]); |
| 106 | if (unlikely(val < 0)) { |
| 107 | ret = ERR_PTR(val); |
| 108 | goto abort; |
| 109 | } |
| 110 | data->temp[i] = val; |
| 111 | } |
| 112 | |
| 113 | for (i = 0; i < SCH5627_NO_FANS; i++) { |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 114 | val = sch56xx_read_virtual_reg16(data->addr, |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 115 | SCH5627_REG_FAN[i]); |
| 116 | if (unlikely(val < 0)) { |
| 117 | ret = ERR_PTR(val); |
| 118 | goto abort; |
| 119 | } |
| 120 | data->fan[i] = val; |
| 121 | } |
| 122 | |
| 123 | for (i = 0; i < SCH5627_NO_IN; i++) { |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 124 | val = sch56xx_read_virtual_reg12(data->addr, |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 125 | SCH5627_REG_IN_MSB[i], |
| 126 | SCH5627_REG_IN_LSN[i], |
| 127 | SCH5627_REG_IN_HIGH_NIBBLE[i]); |
| 128 | if (unlikely(val < 0)) { |
| 129 | ret = ERR_PTR(val); |
| 130 | goto abort; |
| 131 | } |
| 132 | data->in[i] = val; |
| 133 | } |
| 134 | |
| 135 | data->last_updated = jiffies; |
| 136 | data->valid = 1; |
| 137 | } |
| 138 | abort: |
| 139 | mutex_unlock(&data->update_lock); |
| 140 | return ret; |
| 141 | } |
| 142 | |
Bill Pemberton | 6c931ae | 2012-11-19 13:22:35 -0500 | [diff] [blame] | 143 | static int sch5627_read_limits(struct sch5627_data *data) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 144 | { |
| 145 | int i, val; |
| 146 | |
| 147 | for (i = 0; i < SCH5627_NO_TEMPS; i++) { |
| 148 | /* |
| 149 | * Note what SMSC calls ABS, is what lm_sensors calls max |
| 150 | * (aka high), and HIGH is what lm_sensors calls crit. |
| 151 | */ |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 152 | val = sch56xx_read_virtual_reg(data->addr, |
| 153 | SCH5627_REG_TEMP_ABS[i]); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 154 | if (val < 0) |
| 155 | return val; |
| 156 | data->temp_max[i] = val; |
| 157 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 158 | val = sch56xx_read_virtual_reg(data->addr, |
| 159 | SCH5627_REG_TEMP_HIGH[i]); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 160 | if (val < 0) |
| 161 | return val; |
| 162 | data->temp_crit[i] = val; |
| 163 | } |
| 164 | for (i = 0; i < SCH5627_NO_FANS; i++) { |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 165 | val = sch56xx_read_virtual_reg16(data->addr, |
| 166 | SCH5627_REG_FAN_MIN[i]); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 167 | if (val < 0) |
| 168 | return val; |
| 169 | data->fan_min[i] = val; |
| 170 | } |
| 171 | |
| 172 | return 0; |
| 173 | } |
| 174 | |
| 175 | static int reg_to_temp(u16 reg) |
| 176 | { |
| 177 | return (reg * 625) / 10 - 64000; |
| 178 | } |
| 179 | |
| 180 | static int reg_to_temp_limit(u8 reg) |
| 181 | { |
| 182 | return (reg - 64) * 1000; |
| 183 | } |
| 184 | |
| 185 | static int reg_to_rpm(u16 reg) |
| 186 | { |
| 187 | if (reg == 0) |
| 188 | return -EIO; |
| 189 | if (reg == 0xffff) |
| 190 | return 0; |
| 191 | |
| 192 | return 5400540 / reg; |
| 193 | } |
| 194 | |
Julia Lawall | 3776c83 | 2016-12-22 13:05:26 +0100 | [diff] [blame] | 195 | static ssize_t name_show(struct device *dev, struct device_attribute *devattr, |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 196 | char *buf) |
| 197 | { |
| 198 | return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME); |
| 199 | } |
| 200 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 201 | static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, |
| 202 | char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 203 | { |
| 204 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 205 | struct sch5627_data *data = sch5627_update_device(dev); |
| 206 | int val; |
| 207 | |
| 208 | if (IS_ERR(data)) |
| 209 | return PTR_ERR(data); |
| 210 | |
| 211 | val = reg_to_temp(data->temp[attr->index]); |
| 212 | return snprintf(buf, PAGE_SIZE, "%d\n", val); |
| 213 | } |
| 214 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 215 | static ssize_t temp_fault_show(struct device *dev, |
| 216 | struct device_attribute *devattr, char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 217 | { |
| 218 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 219 | struct sch5627_data *data = sch5627_update_device(dev); |
| 220 | |
| 221 | if (IS_ERR(data)) |
| 222 | return PTR_ERR(data); |
| 223 | |
| 224 | return snprintf(buf, PAGE_SIZE, "%d\n", data->temp[attr->index] == 0); |
| 225 | } |
| 226 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 227 | static ssize_t temp_max_show(struct device *dev, |
| 228 | struct device_attribute *devattr, char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 229 | { |
| 230 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 231 | struct sch5627_data *data = dev_get_drvdata(dev); |
| 232 | int val; |
| 233 | |
| 234 | val = reg_to_temp_limit(data->temp_max[attr->index]); |
| 235 | return snprintf(buf, PAGE_SIZE, "%d\n", val); |
| 236 | } |
| 237 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 238 | static ssize_t temp_crit_show(struct device *dev, |
| 239 | struct device_attribute *devattr, char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 240 | { |
| 241 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 242 | struct sch5627_data *data = dev_get_drvdata(dev); |
| 243 | int val; |
| 244 | |
| 245 | val = reg_to_temp_limit(data->temp_crit[attr->index]); |
| 246 | return snprintf(buf, PAGE_SIZE, "%d\n", val); |
| 247 | } |
| 248 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 249 | static ssize_t fan_show(struct device *dev, struct device_attribute *devattr, |
| 250 | char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 251 | { |
| 252 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 253 | struct sch5627_data *data = sch5627_update_device(dev); |
| 254 | int val; |
| 255 | |
| 256 | if (IS_ERR(data)) |
| 257 | return PTR_ERR(data); |
| 258 | |
| 259 | val = reg_to_rpm(data->fan[attr->index]); |
| 260 | if (val < 0) |
| 261 | return val; |
| 262 | |
| 263 | return snprintf(buf, PAGE_SIZE, "%d\n", val); |
| 264 | } |
| 265 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 266 | static ssize_t fan_fault_show(struct device *dev, |
| 267 | struct device_attribute *devattr, char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 268 | { |
| 269 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 270 | struct sch5627_data *data = sch5627_update_device(dev); |
| 271 | |
| 272 | if (IS_ERR(data)) |
| 273 | return PTR_ERR(data); |
| 274 | |
| 275 | return snprintf(buf, PAGE_SIZE, "%d\n", |
| 276 | data->fan[attr->index] == 0xffff); |
| 277 | } |
| 278 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 279 | static ssize_t fan_min_show(struct device *dev, |
| 280 | struct device_attribute *devattr, char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 281 | { |
| 282 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 283 | struct sch5627_data *data = dev_get_drvdata(dev); |
| 284 | int val = reg_to_rpm(data->fan_min[attr->index]); |
| 285 | if (val < 0) |
| 286 | return val; |
| 287 | |
| 288 | return snprintf(buf, PAGE_SIZE, "%d\n", val); |
| 289 | } |
| 290 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 291 | static ssize_t in_show(struct device *dev, struct device_attribute *devattr, |
| 292 | char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 293 | { |
| 294 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 295 | struct sch5627_data *data = sch5627_update_device(dev); |
| 296 | int val; |
| 297 | |
| 298 | if (IS_ERR(data)) |
| 299 | return PTR_ERR(data); |
| 300 | |
| 301 | val = DIV_ROUND_CLOSEST( |
| 302 | data->in[attr->index] * SCH5627_REG_IN_FACTOR[attr->index], |
| 303 | 10000); |
| 304 | return snprintf(buf, PAGE_SIZE, "%d\n", val); |
| 305 | } |
| 306 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 307 | static ssize_t in_label_show(struct device *dev, |
| 308 | struct device_attribute *devattr, char *buf) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 309 | { |
| 310 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 311 | |
| 312 | return snprintf(buf, PAGE_SIZE, "%s\n", |
| 313 | SCH5627_IN_LABELS[attr->index]); |
| 314 | } |
| 315 | |
Julia Lawall | 3776c83 | 2016-12-22 13:05:26 +0100 | [diff] [blame] | 316 | static DEVICE_ATTR_RO(name); |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 317 | static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); |
| 318 | static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); |
| 319 | static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); |
| 320 | static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 3); |
| 321 | static SENSOR_DEVICE_ATTR_RO(temp5_input, temp, 4); |
| 322 | static SENSOR_DEVICE_ATTR_RO(temp6_input, temp, 5); |
| 323 | static SENSOR_DEVICE_ATTR_RO(temp7_input, temp, 6); |
| 324 | static SENSOR_DEVICE_ATTR_RO(temp8_input, temp, 7); |
| 325 | static SENSOR_DEVICE_ATTR_RO(temp1_fault, temp_fault, 0); |
| 326 | static SENSOR_DEVICE_ATTR_RO(temp2_fault, temp_fault, 1); |
| 327 | static SENSOR_DEVICE_ATTR_RO(temp3_fault, temp_fault, 2); |
| 328 | static SENSOR_DEVICE_ATTR_RO(temp4_fault, temp_fault, 3); |
| 329 | static SENSOR_DEVICE_ATTR_RO(temp5_fault, temp_fault, 4); |
| 330 | static SENSOR_DEVICE_ATTR_RO(temp6_fault, temp_fault, 5); |
| 331 | static SENSOR_DEVICE_ATTR_RO(temp7_fault, temp_fault, 6); |
| 332 | static SENSOR_DEVICE_ATTR_RO(temp8_fault, temp_fault, 7); |
| 333 | static SENSOR_DEVICE_ATTR_RO(temp1_max, temp_max, 0); |
| 334 | static SENSOR_DEVICE_ATTR_RO(temp2_max, temp_max, 1); |
| 335 | static SENSOR_DEVICE_ATTR_RO(temp3_max, temp_max, 2); |
| 336 | static SENSOR_DEVICE_ATTR_RO(temp4_max, temp_max, 3); |
| 337 | static SENSOR_DEVICE_ATTR_RO(temp5_max, temp_max, 4); |
| 338 | static SENSOR_DEVICE_ATTR_RO(temp6_max, temp_max, 5); |
| 339 | static SENSOR_DEVICE_ATTR_RO(temp7_max, temp_max, 6); |
| 340 | static SENSOR_DEVICE_ATTR_RO(temp8_max, temp_max, 7); |
| 341 | static SENSOR_DEVICE_ATTR_RO(temp1_crit, temp_crit, 0); |
| 342 | static SENSOR_DEVICE_ATTR_RO(temp2_crit, temp_crit, 1); |
| 343 | static SENSOR_DEVICE_ATTR_RO(temp3_crit, temp_crit, 2); |
| 344 | static SENSOR_DEVICE_ATTR_RO(temp4_crit, temp_crit, 3); |
| 345 | static SENSOR_DEVICE_ATTR_RO(temp5_crit, temp_crit, 4); |
| 346 | static SENSOR_DEVICE_ATTR_RO(temp6_crit, temp_crit, 5); |
| 347 | static SENSOR_DEVICE_ATTR_RO(temp7_crit, temp_crit, 6); |
| 348 | static SENSOR_DEVICE_ATTR_RO(temp8_crit, temp_crit, 7); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 349 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 350 | static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
| 351 | static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); |
| 352 | static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2); |
| 353 | static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3); |
| 354 | static SENSOR_DEVICE_ATTR_RO(fan1_fault, fan_fault, 0); |
| 355 | static SENSOR_DEVICE_ATTR_RO(fan2_fault, fan_fault, 1); |
| 356 | static SENSOR_DEVICE_ATTR_RO(fan3_fault, fan_fault, 2); |
| 357 | static SENSOR_DEVICE_ATTR_RO(fan4_fault, fan_fault, 3); |
| 358 | static SENSOR_DEVICE_ATTR_RO(fan1_min, fan_min, 0); |
| 359 | static SENSOR_DEVICE_ATTR_RO(fan2_min, fan_min, 1); |
| 360 | static SENSOR_DEVICE_ATTR_RO(fan3_min, fan_min, 2); |
| 361 | static SENSOR_DEVICE_ATTR_RO(fan4_min, fan_min, 3); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 362 | |
Guenter Roeck | 290dbb8 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 363 | static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); |
| 364 | static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); |
| 365 | static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); |
| 366 | static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); |
| 367 | static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); |
| 368 | static SENSOR_DEVICE_ATTR_RO(in0_label, in_label, 0); |
| 369 | static SENSOR_DEVICE_ATTR_RO(in1_label, in_label, 1); |
| 370 | static SENSOR_DEVICE_ATTR_RO(in2_label, in_label, 2); |
| 371 | static SENSOR_DEVICE_ATTR_RO(in3_label, in_label, 3); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 372 | |
| 373 | static struct attribute *sch5627_attributes[] = { |
| 374 | &dev_attr_name.attr, |
| 375 | |
| 376 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
| 377 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
| 378 | &sensor_dev_attr_temp3_input.dev_attr.attr, |
| 379 | &sensor_dev_attr_temp4_input.dev_attr.attr, |
| 380 | &sensor_dev_attr_temp5_input.dev_attr.attr, |
| 381 | &sensor_dev_attr_temp6_input.dev_attr.attr, |
| 382 | &sensor_dev_attr_temp7_input.dev_attr.attr, |
| 383 | &sensor_dev_attr_temp8_input.dev_attr.attr, |
| 384 | &sensor_dev_attr_temp1_fault.dev_attr.attr, |
| 385 | &sensor_dev_attr_temp2_fault.dev_attr.attr, |
| 386 | &sensor_dev_attr_temp3_fault.dev_attr.attr, |
| 387 | &sensor_dev_attr_temp4_fault.dev_attr.attr, |
| 388 | &sensor_dev_attr_temp5_fault.dev_attr.attr, |
| 389 | &sensor_dev_attr_temp6_fault.dev_attr.attr, |
| 390 | &sensor_dev_attr_temp7_fault.dev_attr.attr, |
| 391 | &sensor_dev_attr_temp8_fault.dev_attr.attr, |
| 392 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
| 393 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
| 394 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
| 395 | &sensor_dev_attr_temp4_max.dev_attr.attr, |
| 396 | &sensor_dev_attr_temp5_max.dev_attr.attr, |
| 397 | &sensor_dev_attr_temp6_max.dev_attr.attr, |
| 398 | &sensor_dev_attr_temp7_max.dev_attr.attr, |
| 399 | &sensor_dev_attr_temp8_max.dev_attr.attr, |
| 400 | &sensor_dev_attr_temp1_crit.dev_attr.attr, |
| 401 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
| 402 | &sensor_dev_attr_temp3_crit.dev_attr.attr, |
| 403 | &sensor_dev_attr_temp4_crit.dev_attr.attr, |
| 404 | &sensor_dev_attr_temp5_crit.dev_attr.attr, |
| 405 | &sensor_dev_attr_temp6_crit.dev_attr.attr, |
| 406 | &sensor_dev_attr_temp7_crit.dev_attr.attr, |
| 407 | &sensor_dev_attr_temp8_crit.dev_attr.attr, |
| 408 | |
| 409 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
| 410 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
| 411 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
| 412 | &sensor_dev_attr_fan4_input.dev_attr.attr, |
| 413 | &sensor_dev_attr_fan1_fault.dev_attr.attr, |
| 414 | &sensor_dev_attr_fan2_fault.dev_attr.attr, |
| 415 | &sensor_dev_attr_fan3_fault.dev_attr.attr, |
| 416 | &sensor_dev_attr_fan4_fault.dev_attr.attr, |
| 417 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
| 418 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
| 419 | &sensor_dev_attr_fan3_min.dev_attr.attr, |
| 420 | &sensor_dev_attr_fan4_min.dev_attr.attr, |
| 421 | |
| 422 | &sensor_dev_attr_in0_input.dev_attr.attr, |
| 423 | &sensor_dev_attr_in1_input.dev_attr.attr, |
| 424 | &sensor_dev_attr_in2_input.dev_attr.attr, |
| 425 | &sensor_dev_attr_in3_input.dev_attr.attr, |
| 426 | &sensor_dev_attr_in4_input.dev_attr.attr, |
| 427 | &sensor_dev_attr_in0_label.dev_attr.attr, |
| 428 | &sensor_dev_attr_in1_label.dev_attr.attr, |
| 429 | &sensor_dev_attr_in2_label.dev_attr.attr, |
| 430 | &sensor_dev_attr_in3_label.dev_attr.attr, |
| 431 | /* No in4_label as in4 is a generic input pin */ |
| 432 | |
| 433 | NULL |
| 434 | }; |
| 435 | |
| 436 | static const struct attribute_group sch5627_group = { |
| 437 | .attrs = sch5627_attributes, |
| 438 | }; |
| 439 | |
| 440 | static int sch5627_remove(struct platform_device *pdev) |
| 441 | { |
| 442 | struct sch5627_data *data = platform_get_drvdata(pdev); |
| 443 | |
Hans de Goede | 312869e | 2012-03-18 13:05:08 +0100 | [diff] [blame] | 444 | if (data->watchdog) |
| 445 | sch56xx_watchdog_unregister(data->watchdog); |
| 446 | |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 447 | if (data->hwmon_dev) |
| 448 | hwmon_device_unregister(data->hwmon_dev); |
| 449 | |
| 450 | sysfs_remove_group(&pdev->dev.kobj, &sch5627_group); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 451 | |
| 452 | return 0; |
| 453 | } |
| 454 | |
Bill Pemberton | 6c931ae | 2012-11-19 13:22:35 -0500 | [diff] [blame] | 455 | static int sch5627_probe(struct platform_device *pdev) |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 456 | { |
| 457 | struct sch5627_data *data; |
| 458 | int err, build_code, build_id, hwmon_rev, val; |
| 459 | |
Guenter Roeck | bd8d8e0 | 2012-06-02 11:20:21 -0700 | [diff] [blame] | 460 | data = devm_kzalloc(&pdev->dev, sizeof(struct sch5627_data), |
| 461 | GFP_KERNEL); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 462 | if (!data) |
| 463 | return -ENOMEM; |
| 464 | |
| 465 | data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; |
| 466 | mutex_init(&data->update_lock); |
| 467 | platform_set_drvdata(pdev, data); |
| 468 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 469 | val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_HWMON_ID); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 470 | if (val < 0) { |
| 471 | err = val; |
| 472 | goto error; |
| 473 | } |
| 474 | if (val != SCH5627_HWMON_ID) { |
| 475 | pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "hwmon", |
| 476 | val, SCH5627_HWMON_ID); |
| 477 | err = -ENODEV; |
| 478 | goto error; |
| 479 | } |
| 480 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 481 | val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_COMPANY_ID); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 482 | if (val < 0) { |
| 483 | err = val; |
| 484 | goto error; |
| 485 | } |
| 486 | if (val != SCH5627_COMPANY_ID) { |
| 487 | pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "company", |
| 488 | val, SCH5627_COMPANY_ID); |
| 489 | err = -ENODEV; |
| 490 | goto error; |
| 491 | } |
| 492 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 493 | val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_PRIMARY_ID); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 494 | if (val < 0) { |
| 495 | err = val; |
| 496 | goto error; |
| 497 | } |
| 498 | if (val != SCH5627_PRIMARY_ID) { |
| 499 | pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "primary", |
| 500 | val, SCH5627_PRIMARY_ID); |
| 501 | err = -ENODEV; |
| 502 | goto error; |
| 503 | } |
| 504 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 505 | build_code = sch56xx_read_virtual_reg(data->addr, |
| 506 | SCH5627_REG_BUILD_CODE); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 507 | if (build_code < 0) { |
| 508 | err = build_code; |
| 509 | goto error; |
| 510 | } |
| 511 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 512 | build_id = sch56xx_read_virtual_reg16(data->addr, |
| 513 | SCH5627_REG_BUILD_ID); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 514 | if (build_id < 0) { |
| 515 | err = build_id; |
| 516 | goto error; |
| 517 | } |
| 518 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 519 | hwmon_rev = sch56xx_read_virtual_reg(data->addr, |
| 520 | SCH5627_REG_HWMON_REV); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 521 | if (hwmon_rev < 0) { |
| 522 | err = hwmon_rev; |
| 523 | goto error; |
| 524 | } |
| 525 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 526 | val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_CTRL); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 527 | if (val < 0) { |
| 528 | err = val; |
| 529 | goto error; |
| 530 | } |
Hans de Goede | 357b9dc | 2011-05-25 20:43:33 +0200 | [diff] [blame] | 531 | data->control = val; |
| 532 | if (!(data->control & 0x01)) { |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 533 | pr_err("hardware monitoring not enabled\n"); |
| 534 | err = -ENODEV; |
| 535 | goto error; |
| 536 | } |
Hans de Goede | 357b9dc | 2011-05-25 20:43:33 +0200 | [diff] [blame] | 537 | /* Trigger a Vbat voltage measurement, so that we get a valid reading |
| 538 | the first time we read Vbat */ |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 539 | sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL, |
Hans de Goede | 357b9dc | 2011-05-25 20:43:33 +0200 | [diff] [blame] | 540 | data->control | 0x10); |
| 541 | data->last_battery = jiffies; |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 542 | |
| 543 | /* |
| 544 | * Read limits, we do this only once as reading a register on |
| 545 | * the sch5627 is quite expensive (and they don't change). |
| 546 | */ |
| 547 | err = sch5627_read_limits(data); |
| 548 | if (err) |
| 549 | goto error; |
| 550 | |
Hans de Goede | 28ff2f7 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 551 | pr_info("found %s chip at %#hx\n", DEVNAME, data->addr); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 552 | pr_info("firmware build: code 0x%02X, id 0x%04X, hwmon: rev 0x%02X\n", |
| 553 | build_code, build_id, hwmon_rev); |
| 554 | |
| 555 | /* Register sysfs interface files */ |
| 556 | err = sysfs_create_group(&pdev->dev.kobj, &sch5627_group); |
| 557 | if (err) |
| 558 | goto error; |
| 559 | |
| 560 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
| 561 | if (IS_ERR(data->hwmon_dev)) { |
| 562 | err = PTR_ERR(data->hwmon_dev); |
| 563 | data->hwmon_dev = NULL; |
| 564 | goto error; |
| 565 | } |
| 566 | |
Hans de Goede | 312869e | 2012-03-18 13:05:08 +0100 | [diff] [blame] | 567 | /* Note failing to register the watchdog is not a fatal error */ |
Hans de Goede | fb55140 | 2012-05-22 11:40:24 +0200 | [diff] [blame] | 568 | data->watchdog = sch56xx_watchdog_register(&pdev->dev, data->addr, |
Hans de Goede | 312869e | 2012-03-18 13:05:08 +0100 | [diff] [blame] | 569 | (build_code << 24) | (build_id << 8) | hwmon_rev, |
| 570 | &data->update_lock, 1); |
| 571 | |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 572 | return 0; |
| 573 | |
| 574 | error: |
| 575 | sch5627_remove(pdev); |
| 576 | return err; |
| 577 | } |
| 578 | |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 579 | static struct platform_driver sch5627_driver = { |
| 580 | .driver = { |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 581 | .name = DRVNAME, |
| 582 | }, |
| 583 | .probe = sch5627_probe, |
| 584 | .remove = sch5627_remove, |
| 585 | }; |
| 586 | |
Axel Lin | 25a236a | 2011-11-25 02:31:00 -0500 | [diff] [blame] | 587 | module_platform_driver(sch5627_driver); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 588 | |
| 589 | MODULE_DESCRIPTION("SMSC SCH5627 Hardware Monitoring Driver"); |
Hans de Goede | 7958e3b | 2011-07-03 13:32:53 +0200 | [diff] [blame] | 590 | MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); |
Hans de Goede | a98d506 | 2011-03-21 17:59:36 +0100 | [diff] [blame] | 591 | MODULE_LICENSE("GPL"); |