Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | gl520sm.c - Part of lm_sensors, Linux kernel modules for hardware |
| 3 | monitoring |
| 4 | Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>, |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 5 | Kyösti Mälkki <kmalkki@cc.hut.fi> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | Copyright (c) 2005 Maarten Deprez <maartendeprez@users.sourceforge.net> |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 | |
| 22 | */ |
| 23 | |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/slab.h> |
Jean Delvare | 0cacdf2 | 2005-07-29 12:15:12 -0700 | [diff] [blame] | 27 | #include <linux/jiffies.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include <linux/i2c.h> |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 29 | #include <linux/hwmon.h> |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 30 | #include <linux/hwmon-sysfs.h> |
Jean Delvare | 303760b | 2005-07-31 21:52:01 +0200 | [diff] [blame] | 31 | #include <linux/hwmon-vid.h> |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 32 | #include <linux/err.h> |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 33 | #include <linux/mutex.h> |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 34 | #include <linux/sysfs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
| 36 | /* Type of the extra sensor */ |
| 37 | static unsigned short extra_sensor_type; |
| 38 | module_param(extra_sensor_type, ushort, 0); |
| 39 | MODULE_PARM_DESC(extra_sensor_type, "Type of extra sensor (0=autodetect, 1=temperature, 2=voltage)"); |
| 40 | |
| 41 | /* Addresses to scan */ |
Mark M. Hoffman | 25e9c86 | 2008-02-17 22:28:03 -0500 | [diff] [blame] | 42 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
| 44 | /* Insmod parameters */ |
Jean Delvare | f4b5026 | 2005-07-31 21:49:03 +0200 | [diff] [blame] | 45 | I2C_CLIENT_INSMOD_1(gl520sm); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 47 | /* Many GL520 constants specified below |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | One of the inputs can be configured as either temp or voltage. |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 49 | That's why _TEMP2 and _IN4 access the same register |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | */ |
| 51 | |
| 52 | /* The GL520 registers */ |
| 53 | #define GL520_REG_CHIP_ID 0x00 |
| 54 | #define GL520_REG_REVISION 0x01 |
| 55 | #define GL520_REG_CONF 0x03 |
| 56 | #define GL520_REG_MASK 0x11 |
| 57 | |
| 58 | #define GL520_REG_VID_INPUT 0x02 |
| 59 | |
Jean Delvare | 8b4b0ab | 2007-11-04 23:44:52 +0100 | [diff] [blame] | 60 | static const u8 GL520_REG_IN_INPUT[] = { 0x15, 0x14, 0x13, 0x0d, 0x0e }; |
| 61 | static const u8 GL520_REG_IN_LIMIT[] = { 0x0c, 0x09, 0x0a, 0x0b }; |
| 62 | static const u8 GL520_REG_IN_MIN[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x18 }; |
| 63 | static const u8 GL520_REG_IN_MAX[] = { 0x0c, 0x09, 0x0a, 0x0b, 0x17 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | |
Jean Delvare | 8b4b0ab | 2007-11-04 23:44:52 +0100 | [diff] [blame] | 65 | static const u8 GL520_REG_TEMP_INPUT[] = { 0x04, 0x0e }; |
| 66 | static const u8 GL520_REG_TEMP_MAX[] = { 0x05, 0x17 }; |
| 67 | static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
| 69 | #define GL520_REG_FAN_INPUT 0x07 |
| 70 | #define GL520_REG_FAN_MIN 0x08 |
| 71 | #define GL520_REG_FAN_DIV 0x0f |
| 72 | #define GL520_REG_FAN_OFF GL520_REG_FAN_DIV |
| 73 | |
| 74 | #define GL520_REG_ALARMS 0x12 |
| 75 | #define GL520_REG_BEEP_MASK 0x10 |
| 76 | #define GL520_REG_BEEP_ENABLE GL520_REG_CONF |
| 77 | |
| 78 | /* |
| 79 | * Function declarations |
| 80 | */ |
| 81 | |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 82 | static int gl520_probe(struct i2c_client *client, |
| 83 | const struct i2c_device_id *id); |
Jean Delvare | 310ec79 | 2009-12-14 21:17:23 +0100 | [diff] [blame] | 84 | static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | static void gl520_init_client(struct i2c_client *client); |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 86 | static int gl520_remove(struct i2c_client *client); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | static int gl520_read_value(struct i2c_client *client, u8 reg); |
| 88 | static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value); |
| 89 | static struct gl520_data *gl520_update_device(struct device *dev); |
| 90 | |
| 91 | /* Driver data */ |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 92 | static const struct i2c_device_id gl520_id[] = { |
| 93 | { "gl520sm", gl520sm }, |
| 94 | { } |
| 95 | }; |
| 96 | MODULE_DEVICE_TABLE(i2c, gl520_id); |
| 97 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | static struct i2c_driver gl520_driver = { |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 99 | .class = I2C_CLASS_HWMON, |
Laurent Riffard | cdaf793 | 2005-11-26 20:37:41 +0100 | [diff] [blame] | 100 | .driver = { |
Laurent Riffard | cdaf793 | 2005-11-26 20:37:41 +0100 | [diff] [blame] | 101 | .name = "gl520sm", |
| 102 | }, |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 103 | .probe = gl520_probe, |
| 104 | .remove = gl520_remove, |
| 105 | .id_table = gl520_id, |
| 106 | .detect = gl520_detect, |
Jean Delvare | c3813d6 | 2009-12-14 21:17:25 +0100 | [diff] [blame^] | 107 | .address_list = normal_i2c, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | }; |
| 109 | |
| 110 | /* Client data */ |
| 111 | struct gl520_data { |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 112 | struct device *hwmon_dev; |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 113 | struct mutex update_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | char valid; /* zero until the following fields are valid */ |
| 115 | unsigned long last_updated; /* in jiffies */ |
| 116 | |
| 117 | u8 vid; |
| 118 | u8 vrm; |
| 119 | u8 in_input[5]; /* [0] = VVD */ |
| 120 | u8 in_min[5]; /* [0] = VDD */ |
| 121 | u8 in_max[5]; /* [0] = VDD */ |
| 122 | u8 fan_input[2]; |
| 123 | u8 fan_min[2]; |
| 124 | u8 fan_div[2]; |
| 125 | u8 fan_off; |
| 126 | u8 temp_input[2]; |
| 127 | u8 temp_max[2]; |
| 128 | u8 temp_max_hyst[2]; |
| 129 | u8 alarms; |
| 130 | u8 beep_enable; |
| 131 | u8 beep_mask; |
| 132 | u8 alarm_mask; |
| 133 | u8 two_temps; |
| 134 | }; |
| 135 | |
| 136 | /* |
| 137 | * Sysfs stuff |
| 138 | */ |
| 139 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 140 | static ssize_t get_cpu_vid(struct device *dev, struct device_attribute *attr, |
| 141 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 143 | struct gl520_data *data = gl520_update_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); |
| 145 | } |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 146 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, get_cpu_vid, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
| 148 | #define VDD_FROM_REG(val) (((val)*95+2)/4) |
| 149 | #define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255)) |
| 150 | |
| 151 | #define IN_FROM_REG(val) ((val)*19) |
| 152 | #define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255)) |
| 153 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 154 | static ssize_t get_in_input(struct device *dev, struct device_attribute *attr, |
| 155 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 157 | int n = to_sensor_dev_attr(attr)->index; |
| 158 | struct gl520_data *data = gl520_update_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | u8 r = data->in_input[n]; |
| 160 | |
| 161 | if (n == 0) |
| 162 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); |
| 163 | else |
| 164 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); |
| 165 | } |
| 166 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 167 | static ssize_t get_in_min(struct device *dev, struct device_attribute *attr, |
| 168 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 170 | int n = to_sensor_dev_attr(attr)->index; |
| 171 | struct gl520_data *data = gl520_update_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | u8 r = data->in_min[n]; |
| 173 | |
| 174 | if (n == 0) |
| 175 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); |
| 176 | else |
| 177 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); |
| 178 | } |
| 179 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 180 | static ssize_t get_in_max(struct device *dev, struct device_attribute *attr, |
| 181 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 183 | int n = to_sensor_dev_attr(attr)->index; |
| 184 | struct gl520_data *data = gl520_update_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | u8 r = data->in_max[n]; |
| 186 | |
| 187 | if (n == 0) |
| 188 | return sprintf(buf, "%d\n", VDD_FROM_REG(r)); |
| 189 | else |
| 190 | return sprintf(buf, "%d\n", IN_FROM_REG(r)); |
| 191 | } |
| 192 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 193 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
| 194 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 196 | struct i2c_client *client = to_i2c_client(dev); |
| 197 | struct gl520_data *data = i2c_get_clientdata(client); |
| 198 | int n = to_sensor_dev_attr(attr)->index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | long v = simple_strtol(buf, NULL, 10); |
| 200 | u8 r; |
| 201 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 202 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | |
| 204 | if (n == 0) |
| 205 | r = VDD_TO_REG(v); |
| 206 | else |
| 207 | r = IN_TO_REG(v); |
| 208 | |
| 209 | data->in_min[n] = r; |
| 210 | |
| 211 | if (n < 4) |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 212 | gl520_write_value(client, GL520_REG_IN_MIN[n], |
| 213 | (gl520_read_value(client, GL520_REG_IN_MIN[n]) |
| 214 | & ~0xff) | r); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | else |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 216 | gl520_write_value(client, GL520_REG_IN_MIN[n], r); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 218 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | return count; |
| 220 | } |
| 221 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 222 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
| 223 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 225 | struct i2c_client *client = to_i2c_client(dev); |
| 226 | struct gl520_data *data = i2c_get_clientdata(client); |
| 227 | int n = to_sensor_dev_attr(attr)->index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | long v = simple_strtol(buf, NULL, 10); |
| 229 | u8 r; |
| 230 | |
| 231 | if (n == 0) |
| 232 | r = VDD_TO_REG(v); |
| 233 | else |
| 234 | r = IN_TO_REG(v); |
| 235 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 236 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | |
| 238 | data->in_max[n] = r; |
| 239 | |
| 240 | if (n < 4) |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 241 | gl520_write_value(client, GL520_REG_IN_MAX[n], |
| 242 | (gl520_read_value(client, GL520_REG_IN_MAX[n]) |
| 243 | & ~0xff00) | (r << 8)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | else |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 245 | gl520_write_value(client, GL520_REG_IN_MAX[n], r); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 247 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | return count; |
| 249 | } |
| 250 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 251 | static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, get_in_input, NULL, 0); |
| 252 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, get_in_input, NULL, 1); |
| 253 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, get_in_input, NULL, 2); |
| 254 | static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, get_in_input, NULL, 3); |
| 255 | static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, get_in_input, NULL, 4); |
| 256 | static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR, |
| 257 | get_in_min, set_in_min, 0); |
| 258 | static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR, |
| 259 | get_in_min, set_in_min, 1); |
| 260 | static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR, |
| 261 | get_in_min, set_in_min, 2); |
| 262 | static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR, |
| 263 | get_in_min, set_in_min, 3); |
| 264 | static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR, |
| 265 | get_in_min, set_in_min, 4); |
| 266 | static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR, |
| 267 | get_in_max, set_in_max, 0); |
| 268 | static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR, |
| 269 | get_in_max, set_in_max, 1); |
| 270 | static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR, |
| 271 | get_in_max, set_in_max, 2); |
| 272 | static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR, |
| 273 | get_in_max, set_in_max, 3); |
| 274 | static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR, |
| 275 | get_in_max, set_in_max, 4); |
| 276 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | #define DIV_FROM_REG(val) (1 << (val)) |
| 278 | #define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val) << (div)))) |
| 279 | #define FAN_TO_REG(val,div) ((val)<=0?0:SENSORS_LIMIT((480000 + ((val) << ((div)-1))) / ((val) << (div)), 1, 255)); |
| 280 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 281 | static ssize_t get_fan_input(struct device *dev, struct device_attribute *attr, |
| 282 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 284 | int n = to_sensor_dev_attr(attr)->index; |
| 285 | struct gl520_data *data = gl520_update_device(dev); |
| 286 | |
| 287 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_input[n], |
| 288 | data->fan_div[n])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | } |
| 290 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 291 | static ssize_t get_fan_min(struct device *dev, struct device_attribute *attr, |
| 292 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 294 | int n = to_sensor_dev_attr(attr)->index; |
| 295 | struct gl520_data *data = gl520_update_device(dev); |
| 296 | |
| 297 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[n], |
| 298 | data->fan_div[n])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | } |
| 300 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 301 | static ssize_t get_fan_div(struct device *dev, struct device_attribute *attr, |
| 302 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 304 | int n = to_sensor_dev_attr(attr)->index; |
| 305 | struct gl520_data *data = gl520_update_device(dev); |
| 306 | |
| 307 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[n])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | } |
| 309 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 310 | static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr, |
| 311 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 313 | struct gl520_data *data = gl520_update_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | return sprintf(buf, "%d\n", data->fan_off); |
| 315 | } |
| 316 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 317 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
| 318 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 320 | struct i2c_client *client = to_i2c_client(dev); |
| 321 | struct gl520_data *data = i2c_get_clientdata(client); |
| 322 | int n = to_sensor_dev_attr(attr)->index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | unsigned long v = simple_strtoul(buf, NULL, 10); |
| 324 | u8 r; |
| 325 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 326 | mutex_lock(&data->update_lock); |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 327 | r = FAN_TO_REG(v, data->fan_div[n]); |
| 328 | data->fan_min[n] = r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 330 | if (n == 0) |
| 331 | gl520_write_value(client, GL520_REG_FAN_MIN, |
| 332 | (gl520_read_value(client, GL520_REG_FAN_MIN) |
| 333 | & ~0xff00) | (r << 8)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | else |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 335 | gl520_write_value(client, GL520_REG_FAN_MIN, |
| 336 | (gl520_read_value(client, GL520_REG_FAN_MIN) |
| 337 | & ~0xff) | r); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
| 339 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 340 | if (data->fan_min[n] == 0) |
| 341 | data->alarm_mask &= (n == 0) ? ~0x20 : ~0x40; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | else |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 343 | data->alarm_mask |= (n == 0) ? 0x20 : 0x40; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | data->beep_mask &= data->alarm_mask; |
| 345 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); |
| 346 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 347 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | return count; |
| 349 | } |
| 350 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 351 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
| 352 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 354 | struct i2c_client *client = to_i2c_client(dev); |
| 355 | struct gl520_data *data = i2c_get_clientdata(client); |
| 356 | int n = to_sensor_dev_attr(attr)->index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | unsigned long v = simple_strtoul(buf, NULL, 10); |
| 358 | u8 r; |
| 359 | |
| 360 | switch (v) { |
| 361 | case 1: r = 0; break; |
| 362 | case 2: r = 1; break; |
| 363 | case 4: r = 2; break; |
| 364 | case 8: r = 3; break; |
| 365 | default: |
| 366 | dev_err(&client->dev, "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", v); |
| 367 | return -EINVAL; |
| 368 | } |
| 369 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 370 | mutex_lock(&data->update_lock); |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 371 | data->fan_div[n] = r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 373 | if (n == 0) |
| 374 | gl520_write_value(client, GL520_REG_FAN_DIV, |
| 375 | (gl520_read_value(client, GL520_REG_FAN_DIV) |
| 376 | & ~0xc0) | (r << 6)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | else |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 378 | gl520_write_value(client, GL520_REG_FAN_DIV, |
| 379 | (gl520_read_value(client, GL520_REG_FAN_DIV) |
| 380 | & ~0x30) | (r << 4)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 382 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | return count; |
| 384 | } |
| 385 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 386 | static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr, |
| 387 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 389 | struct i2c_client *client = to_i2c_client(dev); |
| 390 | struct gl520_data *data = i2c_get_clientdata(client); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | u8 r = simple_strtoul(buf, NULL, 10)?1:0; |
| 392 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 393 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | data->fan_off = r; |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 395 | gl520_write_value(client, GL520_REG_FAN_OFF, |
| 396 | (gl520_read_value(client, GL520_REG_FAN_OFF) |
| 397 | & ~0x0c) | (r << 2)); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 398 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | return count; |
| 400 | } |
| 401 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 402 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan_input, NULL, 0); |
| 403 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan_input, NULL, 1); |
| 404 | static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR, |
| 405 | get_fan_min, set_fan_min, 0); |
| 406 | static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR, |
| 407 | get_fan_min, set_fan_min, 1); |
| 408 | static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, |
| 409 | get_fan_div, set_fan_div, 0); |
| 410 | static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, |
| 411 | get_fan_div, set_fan_div, 1); |
| 412 | static DEVICE_ATTR(fan1_off, S_IRUGO | S_IWUSR, |
| 413 | get_fan_off, set_fan_off); |
| 414 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | #define TEMP_FROM_REG(val) (((val) - 130) * 1000) |
| 416 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0?(val)-500:(val)+500) / 1000)+130),0,255)) |
| 417 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 418 | static ssize_t get_temp_input(struct device *dev, struct device_attribute *attr, |
| 419 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 421 | int n = to_sensor_dev_attr(attr)->index; |
| 422 | struct gl520_data *data = gl520_update_device(dev); |
| 423 | |
| 424 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_input[n])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | } |
| 426 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 427 | static ssize_t get_temp_max(struct device *dev, struct device_attribute *attr, |
| 428 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 430 | int n = to_sensor_dev_attr(attr)->index; |
| 431 | struct gl520_data *data = gl520_update_device(dev); |
| 432 | |
| 433 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[n])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | } |
| 435 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 436 | static ssize_t get_temp_max_hyst(struct device *dev, struct device_attribute |
| 437 | *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 439 | int n = to_sensor_dev_attr(attr)->index; |
| 440 | struct gl520_data *data = gl520_update_device(dev); |
| 441 | |
| 442 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[n])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | } |
| 444 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 445 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
| 446 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 448 | struct i2c_client *client = to_i2c_client(dev); |
| 449 | struct gl520_data *data = i2c_get_clientdata(client); |
| 450 | int n = to_sensor_dev_attr(attr)->index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | long v = simple_strtol(buf, NULL, 10); |
| 452 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 453 | mutex_lock(&data->update_lock); |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 454 | data->temp_max[n] = TEMP_TO_REG(v); |
| 455 | gl520_write_value(client, GL520_REG_TEMP_MAX[n], data->temp_max[n]); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 456 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | return count; |
| 458 | } |
| 459 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 460 | static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute |
| 461 | *attr, const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 463 | struct i2c_client *client = to_i2c_client(dev); |
| 464 | struct gl520_data *data = i2c_get_clientdata(client); |
| 465 | int n = to_sensor_dev_attr(attr)->index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | long v = simple_strtol(buf, NULL, 10); |
| 467 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 468 | mutex_lock(&data->update_lock); |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 469 | data->temp_max_hyst[n] = TEMP_TO_REG(v); |
| 470 | gl520_write_value(client, GL520_REG_TEMP_MAX_HYST[n], |
| 471 | data->temp_max_hyst[n]); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 472 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | return count; |
| 474 | } |
| 475 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 476 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_temp_input, NULL, 0); |
| 477 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_temp_input, NULL, 1); |
| 478 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, |
| 479 | get_temp_max, set_temp_max, 0); |
| 480 | static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR, |
| 481 | get_temp_max, set_temp_max, 1); |
| 482 | static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, |
| 483 | get_temp_max_hyst, set_temp_max_hyst, 0); |
| 484 | static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, |
| 485 | get_temp_max_hyst, set_temp_max_hyst, 1); |
| 486 | |
| 487 | static ssize_t get_alarms(struct device *dev, struct device_attribute *attr, |
| 488 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 490 | struct gl520_data *data = gl520_update_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | return sprintf(buf, "%d\n", data->alarms); |
| 492 | } |
| 493 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 494 | static ssize_t get_beep_enable(struct device *dev, struct device_attribute |
| 495 | *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 497 | struct gl520_data *data = gl520_update_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | return sprintf(buf, "%d\n", data->beep_enable); |
| 499 | } |
| 500 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 501 | static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr, |
| 502 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 504 | struct gl520_data *data = gl520_update_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | return sprintf(buf, "%d\n", data->beep_mask); |
| 506 | } |
| 507 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 508 | static ssize_t set_beep_enable(struct device *dev, struct device_attribute |
| 509 | *attr, const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 511 | struct i2c_client *client = to_i2c_client(dev); |
| 512 | struct gl520_data *data = i2c_get_clientdata(client); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | u8 r = simple_strtoul(buf, NULL, 10)?0:1; |
| 514 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 515 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | data->beep_enable = !r; |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 517 | gl520_write_value(client, GL520_REG_BEEP_ENABLE, |
| 518 | (gl520_read_value(client, GL520_REG_BEEP_ENABLE) |
| 519 | & ~0x04) | (r << 2)); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 520 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | return count; |
| 522 | } |
| 523 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 524 | static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr, |
| 525 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 527 | struct i2c_client *client = to_i2c_client(dev); |
| 528 | struct gl520_data *data = i2c_get_clientdata(client); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | u8 r = simple_strtoul(buf, NULL, 10); |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 530 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 531 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | r &= data->alarm_mask; |
| 533 | data->beep_mask = r; |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 534 | gl520_write_value(client, GL520_REG_BEEP_MASK, r); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 535 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | return count; |
| 537 | } |
| 538 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 539 | static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL); |
| 540 | static DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR, |
| 541 | get_beep_enable, set_beep_enable); |
| 542 | static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR, |
| 543 | get_beep_mask, set_beep_mask); |
| 544 | |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 545 | static ssize_t get_alarm(struct device *dev, struct device_attribute *attr, |
| 546 | char *buf) |
| 547 | { |
| 548 | int bit_nr = to_sensor_dev_attr(attr)->index; |
| 549 | struct gl520_data *data = gl520_update_device(dev); |
| 550 | |
| 551 | return sprintf(buf, "%d\n", (data->alarms >> bit_nr) & 1); |
| 552 | } |
| 553 | |
| 554 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, get_alarm, NULL, 0); |
| 555 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, get_alarm, NULL, 1); |
| 556 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, get_alarm, NULL, 2); |
| 557 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, get_alarm, NULL, 3); |
| 558 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, get_alarm, NULL, 4); |
| 559 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, get_alarm, NULL, 5); |
| 560 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, get_alarm, NULL, 6); |
| 561 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, get_alarm, NULL, 7); |
| 562 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, get_alarm, NULL, 7); |
| 563 | |
| 564 | static ssize_t get_beep(struct device *dev, struct device_attribute *attr, |
| 565 | char *buf) |
| 566 | { |
| 567 | int bitnr = to_sensor_dev_attr(attr)->index; |
| 568 | struct gl520_data *data = gl520_update_device(dev); |
| 569 | |
| 570 | return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1); |
| 571 | } |
| 572 | |
| 573 | static ssize_t set_beep(struct device *dev, struct device_attribute *attr, |
| 574 | const char *buf, size_t count) |
| 575 | { |
| 576 | struct i2c_client *client = to_i2c_client(dev); |
| 577 | struct gl520_data *data = i2c_get_clientdata(client); |
| 578 | int bitnr = to_sensor_dev_attr(attr)->index; |
| 579 | unsigned long bit; |
| 580 | |
| 581 | bit = simple_strtoul(buf, NULL, 10); |
| 582 | if (bit & ~1) |
| 583 | return -EINVAL; |
| 584 | |
| 585 | mutex_lock(&data->update_lock); |
| 586 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); |
| 587 | if (bit) |
| 588 | data->beep_mask |= (1 << bitnr); |
| 589 | else |
| 590 | data->beep_mask &= ~(1 << bitnr); |
| 591 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); |
| 592 | mutex_unlock(&data->update_lock); |
| 593 | return count; |
| 594 | } |
| 595 | |
| 596 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 0); |
| 597 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 1); |
| 598 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 2); |
| 599 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 3); |
| 600 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 4); |
| 601 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 5); |
| 602 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 6); |
| 603 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7); |
| 604 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7); |
| 605 | |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 606 | static struct attribute *gl520_attributes[] = { |
| 607 | &dev_attr_cpu0_vid.attr, |
| 608 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 609 | &sensor_dev_attr_in0_input.dev_attr.attr, |
| 610 | &sensor_dev_attr_in0_min.dev_attr.attr, |
| 611 | &sensor_dev_attr_in0_max.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 612 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
| 613 | &sensor_dev_attr_in0_beep.dev_attr.attr, |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 614 | &sensor_dev_attr_in1_input.dev_attr.attr, |
| 615 | &sensor_dev_attr_in1_min.dev_attr.attr, |
| 616 | &sensor_dev_attr_in1_max.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 617 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
| 618 | &sensor_dev_attr_in1_beep.dev_attr.attr, |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 619 | &sensor_dev_attr_in2_input.dev_attr.attr, |
| 620 | &sensor_dev_attr_in2_min.dev_attr.attr, |
| 621 | &sensor_dev_attr_in2_max.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 622 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
| 623 | &sensor_dev_attr_in2_beep.dev_attr.attr, |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 624 | &sensor_dev_attr_in3_input.dev_attr.attr, |
| 625 | &sensor_dev_attr_in3_min.dev_attr.attr, |
| 626 | &sensor_dev_attr_in3_max.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 627 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
| 628 | &sensor_dev_attr_in3_beep.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 629 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 630 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
| 631 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
| 632 | &sensor_dev_attr_fan1_div.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 633 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
| 634 | &sensor_dev_attr_fan1_beep.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 635 | &dev_attr_fan1_off.attr, |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 636 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
| 637 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
| 638 | &sensor_dev_attr_fan2_div.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 639 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
| 640 | &sensor_dev_attr_fan2_beep.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 641 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 642 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
| 643 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
| 644 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 645 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
| 646 | &sensor_dev_attr_temp1_beep.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 647 | |
| 648 | &dev_attr_alarms.attr, |
| 649 | &dev_attr_beep_enable.attr, |
| 650 | &dev_attr_beep_mask.attr, |
| 651 | NULL |
| 652 | }; |
| 653 | |
| 654 | static const struct attribute_group gl520_group = { |
| 655 | .attrs = gl520_attributes, |
| 656 | }; |
| 657 | |
| 658 | static struct attribute *gl520_attributes_opt[] = { |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 659 | &sensor_dev_attr_in4_input.dev_attr.attr, |
| 660 | &sensor_dev_attr_in4_min.dev_attr.attr, |
| 661 | &sensor_dev_attr_in4_max.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 662 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
| 663 | &sensor_dev_attr_in4_beep.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 664 | |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 665 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
| 666 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
| 667 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 668 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
| 669 | &sensor_dev_attr_temp2_beep.dev_attr.attr, |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 670 | NULL |
| 671 | }; |
| 672 | |
| 673 | static const struct attribute_group gl520_group_opt = { |
| 674 | .attrs = gl520_attributes_opt, |
| 675 | }; |
| 676 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | |
| 678 | /* |
| 679 | * Real code |
| 680 | */ |
| 681 | |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 682 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
Jean Delvare | 310ec79 | 2009-12-14 21:17:23 +0100 | [diff] [blame] | 683 | static int gl520_detect(struct i2c_client *client, struct i2c_board_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | { |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 685 | struct i2c_adapter *adapter = client->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | |
| 687 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | |
| 688 | I2C_FUNC_SMBUS_WORD_DATA)) |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 689 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | |
| 691 | /* Determine the chip type. */ |
Jean Delvare | 52df644 | 2009-12-09 20:35:57 +0100 | [diff] [blame] | 692 | if ((gl520_read_value(client, GL520_REG_CHIP_ID) != 0x20) || |
| 693 | ((gl520_read_value(client, GL520_REG_REVISION) & 0x7f) != 0x00) || |
| 694 | ((gl520_read_value(client, GL520_REG_CONF) & 0x80) != 0x00)) { |
| 695 | dev_dbg(&client->dev, "Unknown chip type, skipping\n"); |
| 696 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | } |
| 698 | |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 699 | strlcpy(info->type, "gl520sm", I2C_NAME_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 701 | return 0; |
| 702 | } |
| 703 | |
| 704 | static int gl520_probe(struct i2c_client *client, |
| 705 | const struct i2c_device_id *id) |
| 706 | { |
| 707 | struct gl520_data *data; |
| 708 | int err; |
| 709 | |
| 710 | data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL); |
| 711 | if (!data) { |
| 712 | err = -ENOMEM; |
| 713 | goto exit; |
| 714 | } |
| 715 | |
| 716 | i2c_set_clientdata(client, data); |
| 717 | mutex_init(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | |
| 719 | /* Initialize the GL520SM chip */ |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 720 | gl520_init_client(client); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | |
| 722 | /* Register sysfs hooks */ |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 723 | if ((err = sysfs_create_group(&client->dev.kobj, &gl520_group))) |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 724 | goto exit_free; |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 725 | |
| 726 | if (data->two_temps) { |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 727 | if ((err = device_create_file(&client->dev, |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 728 | &sensor_dev_attr_temp2_input.dev_attr)) |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 729 | || (err = device_create_file(&client->dev, |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 730 | &sensor_dev_attr_temp2_max.dev_attr)) |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 731 | || (err = device_create_file(&client->dev, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 732 | &sensor_dev_attr_temp2_max_hyst.dev_attr)) |
| 733 | || (err = device_create_file(&client->dev, |
| 734 | &sensor_dev_attr_temp2_alarm.dev_attr)) |
| 735 | || (err = device_create_file(&client->dev, |
| 736 | &sensor_dev_attr_temp2_beep.dev_attr))) |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 737 | goto exit_remove_files; |
| 738 | } else { |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 739 | if ((err = device_create_file(&client->dev, |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 740 | &sensor_dev_attr_in4_input.dev_attr)) |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 741 | || (err = device_create_file(&client->dev, |
Jean Delvare | 86d47f1 | 2007-11-04 23:45:14 +0100 | [diff] [blame] | 742 | &sensor_dev_attr_in4_min.dev_attr)) |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 743 | || (err = device_create_file(&client->dev, |
Jean Delvare | e86a776 | 2007-11-04 23:45:41 +0100 | [diff] [blame] | 744 | &sensor_dev_attr_in4_max.dev_attr)) |
| 745 | || (err = device_create_file(&client->dev, |
| 746 | &sensor_dev_attr_in4_alarm.dev_attr)) |
| 747 | || (err = device_create_file(&client->dev, |
| 748 | &sensor_dev_attr_in4_beep.dev_attr))) |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 749 | goto exit_remove_files; |
| 750 | } |
| 751 | |
| 752 | |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 753 | data->hwmon_dev = hwmon_device_register(&client->dev); |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 754 | if (IS_ERR(data->hwmon_dev)) { |
| 755 | err = PTR_ERR(data->hwmon_dev); |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 756 | goto exit_remove_files; |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 757 | } |
| 758 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | return 0; |
| 760 | |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 761 | exit_remove_files: |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 762 | sysfs_remove_group(&client->dev.kobj, &gl520_group); |
| 763 | sysfs_remove_group(&client->dev.kobj, &gl520_group_opt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | exit_free: |
| 765 | kfree(data); |
| 766 | exit: |
| 767 | return err; |
| 768 | } |
| 769 | |
| 770 | |
| 771 | /* Called when we have found a new GL520SM. */ |
| 772 | static void gl520_init_client(struct i2c_client *client) |
| 773 | { |
| 774 | struct gl520_data *data = i2c_get_clientdata(client); |
| 775 | u8 oldconf, conf; |
| 776 | |
| 777 | conf = oldconf = gl520_read_value(client, GL520_REG_CONF); |
| 778 | |
| 779 | data->alarm_mask = 0xff; |
Jean Delvare | 303760b | 2005-07-31 21:52:01 +0200 | [diff] [blame] | 780 | data->vrm = vid_which_vrm(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | |
| 782 | if (extra_sensor_type == 1) |
| 783 | conf &= ~0x10; |
| 784 | else if (extra_sensor_type == 2) |
| 785 | conf |= 0x10; |
| 786 | data->two_temps = !(conf & 0x10); |
| 787 | |
| 788 | /* If IRQ# is disabled, we can safely force comparator mode */ |
| 789 | if (!(conf & 0x20)) |
| 790 | conf &= 0xf7; |
| 791 | |
| 792 | /* Enable monitoring if needed */ |
| 793 | conf |= 0x40; |
| 794 | |
| 795 | if (conf != oldconf) |
| 796 | gl520_write_value(client, GL520_REG_CONF, conf); |
| 797 | |
| 798 | gl520_update_device(&(client->dev)); |
| 799 | |
| 800 | if (data->fan_min[0] == 0) |
| 801 | data->alarm_mask &= ~0x20; |
| 802 | if (data->fan_min[1] == 0) |
| 803 | data->alarm_mask &= ~0x40; |
| 804 | |
| 805 | data->beep_mask &= data->alarm_mask; |
| 806 | gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); |
| 807 | } |
| 808 | |
Jean Delvare | a23a9fe | 2008-07-16 19:30:13 +0200 | [diff] [blame] | 809 | static int gl520_remove(struct i2c_client *client) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | { |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 811 | struct gl520_data *data = i2c_get_clientdata(client); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 812 | |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 813 | hwmon_device_unregister(data->hwmon_dev); |
Jean Delvare | 87808be | 2006-09-24 21:17:13 +0200 | [diff] [blame] | 814 | sysfs_remove_group(&client->dev.kobj, &gl520_group); |
| 815 | sysfs_remove_group(&client->dev.kobj, &gl520_group_opt); |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 816 | |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 817 | kfree(data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | return 0; |
| 819 | } |
| 820 | |
| 821 | |
Jean Delvare | f28dc2f | 2007-11-04 23:44:23 +0100 | [diff] [blame] | 822 | /* Registers 0x07 to 0x0c are word-sized, others are byte-sized |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | GL520 uses a high-byte first convention */ |
| 824 | static int gl520_read_value(struct i2c_client *client, u8 reg) |
| 825 | { |
| 826 | if ((reg >= 0x07) && (reg <= 0x0c)) |
| 827 | return swab16(i2c_smbus_read_word_data(client, reg)); |
| 828 | else |
| 829 | return i2c_smbus_read_byte_data(client, reg); |
| 830 | } |
| 831 | |
| 832 | static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) |
| 833 | { |
| 834 | if ((reg >= 0x07) && (reg <= 0x0c)) |
| 835 | return i2c_smbus_write_word_data(client, reg, swab16(value)); |
| 836 | else |
| 837 | return i2c_smbus_write_byte_data(client, reg, value); |
| 838 | } |
| 839 | |
| 840 | |
| 841 | static struct gl520_data *gl520_update_device(struct device *dev) |
| 842 | { |
| 843 | struct i2c_client *client = to_i2c_client(dev); |
| 844 | struct gl520_data *data = i2c_get_clientdata(client); |
Jean Delvare | 8b4b0ab | 2007-11-04 23:44:52 +0100 | [diff] [blame] | 845 | int val, i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 847 | mutex_lock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | |
Jean Delvare | 0cacdf2 | 2005-07-29 12:15:12 -0700 | [diff] [blame] | 849 | if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | |
| 851 | dev_dbg(&client->dev, "Starting gl520sm update\n"); |
| 852 | |
| 853 | data->alarms = gl520_read_value(client, GL520_REG_ALARMS); |
| 854 | data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK); |
| 855 | data->vid = gl520_read_value(client, GL520_REG_VID_INPUT) & 0x1f; |
| 856 | |
Jean Delvare | 8b4b0ab | 2007-11-04 23:44:52 +0100 | [diff] [blame] | 857 | for (i = 0; i < 4; i++) { |
| 858 | data->in_input[i] = gl520_read_value(client, |
| 859 | GL520_REG_IN_INPUT[i]); |
| 860 | val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]); |
| 861 | data->in_min[i] = val & 0xff; |
| 862 | data->in_max[i] = (val >> 8) & 0xff; |
| 863 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | |
| 865 | val = gl520_read_value(client, GL520_REG_FAN_INPUT); |
| 866 | data->fan_input[0] = (val >> 8) & 0xff; |
| 867 | data->fan_input[1] = val & 0xff; |
| 868 | |
| 869 | val = gl520_read_value(client, GL520_REG_FAN_MIN); |
| 870 | data->fan_min[0] = (val >> 8) & 0xff; |
| 871 | data->fan_min[1] = val & 0xff; |
| 872 | |
Jean Delvare | 8b4b0ab | 2007-11-04 23:44:52 +0100 | [diff] [blame] | 873 | data->temp_input[0] = gl520_read_value(client, |
| 874 | GL520_REG_TEMP_INPUT[0]); |
| 875 | data->temp_max[0] = gl520_read_value(client, |
| 876 | GL520_REG_TEMP_MAX[0]); |
| 877 | data->temp_max_hyst[0] = gl520_read_value(client, |
| 878 | GL520_REG_TEMP_MAX_HYST[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | |
| 880 | val = gl520_read_value(client, GL520_REG_FAN_DIV); |
| 881 | data->fan_div[0] = (val >> 6) & 0x03; |
| 882 | data->fan_div[1] = (val >> 4) & 0x03; |
| 883 | data->fan_off = (val >> 2) & 0x01; |
| 884 | |
| 885 | data->alarms &= data->alarm_mask; |
| 886 | |
| 887 | val = gl520_read_value(client, GL520_REG_CONF); |
| 888 | data->beep_enable = !((val >> 2) & 1); |
| 889 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | /* Temp1 and Vin4 are the same input */ |
| 891 | if (data->two_temps) { |
Jean Delvare | 8b4b0ab | 2007-11-04 23:44:52 +0100 | [diff] [blame] | 892 | data->temp_input[1] = gl520_read_value(client, |
| 893 | GL520_REG_TEMP_INPUT[1]); |
| 894 | data->temp_max[1] = gl520_read_value(client, |
| 895 | GL520_REG_TEMP_MAX[1]); |
| 896 | data->temp_max_hyst[1] = gl520_read_value(client, |
| 897 | GL520_REG_TEMP_MAX_HYST[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | } else { |
Jean Delvare | 8b4b0ab | 2007-11-04 23:44:52 +0100 | [diff] [blame] | 899 | data->in_input[4] = gl520_read_value(client, |
| 900 | GL520_REG_IN_INPUT[4]); |
| 901 | data->in_min[4] = gl520_read_value(client, |
| 902 | GL520_REG_IN_MIN[4]); |
| 903 | data->in_max[4] = gl520_read_value(client, |
| 904 | GL520_REG_IN_MAX[4]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | } |
| 906 | |
| 907 | data->last_updated = jiffies; |
| 908 | data->valid = 1; |
| 909 | } |
| 910 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 911 | mutex_unlock(&data->update_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | |
| 913 | return data; |
| 914 | } |
| 915 | |
| 916 | |
| 917 | static int __init sensors_gl520sm_init(void) |
| 918 | { |
| 919 | return i2c_add_driver(&gl520_driver); |
| 920 | } |
| 921 | |
| 922 | static void __exit sensors_gl520sm_exit(void) |
| 923 | { |
| 924 | i2c_del_driver(&gl520_driver); |
| 925 | } |
| 926 | |
| 927 | |
| 928 | MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 929 | "Kyösti Mälkki <kmalkki@cc.hut.fi>, " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 930 | "Maarten Deprez <maartendeprez@users.sourceforge.net>"); |
| 931 | MODULE_DESCRIPTION("GL520SM driver"); |
| 932 | MODULE_LICENSE("GPL"); |
| 933 | |
| 934 | module_init(sensors_gl520sm_init); |
| 935 | module_exit(sensors_gl520sm_exit); |