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1da177e4 LT |
1 | /* |
2 | w83781d.c - Part of lm_sensors, Linux kernel modules for hardware | |
3 | monitoring | |
4 | Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>, | |
7666c13c JD |
5 | Philip Edelbrock <phil@netroedge.com>, |
6 | and Mark Studebaker <mdsxyz123@yahoo.com> | |
7 | Copyright (c) 2007 Jean Delvare <khali@linux-fr.org> | |
1da177e4 LT |
8 | |
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
24 | /* | |
25 | Supports following chips: | |
26 | ||
27 | Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA | |
28 | as99127f 7 3 0 3 0x31 0x12c3 yes no | |
29 | as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no | |
30 | w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes | |
31 | w83627hf 9 3 2 3 0x21 0x5ca3 yes yes(LPC) | |
1da177e4 LT |
32 | w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes |
33 | w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no | |
1da177e4 LT |
34 | |
35 | */ | |
36 | ||
1da177e4 LT |
37 | #include <linux/module.h> |
38 | #include <linux/init.h> | |
39 | #include <linux/slab.h> | |
40 | #include <linux/jiffies.h> | |
41 | #include <linux/i2c.h> | |
7666c13c JD |
42 | #include <linux/platform_device.h> |
43 | #include <linux/ioport.h> | |
943b0830 | 44 | #include <linux/hwmon.h> |
303760b4 | 45 | #include <linux/hwmon-vid.h> |
311ce2ef | 46 | #include <linux/sysfs.h> |
943b0830 | 47 | #include <linux/err.h> |
9a61bf63 | 48 | #include <linux/mutex.h> |
1da177e4 LT |
49 | #include <asm/io.h> |
50 | #include "lm75.h" | |
51 | ||
7666c13c JD |
52 | /* ISA device, if found */ |
53 | static struct platform_device *pdev; | |
54 | ||
1da177e4 LT |
55 | /* Addresses to scan */ |
56 | static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, | |
57 | 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, | |
58 | 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; | |
2d8672c5 | 59 | static unsigned short isa_address = 0x290; |
1da177e4 LT |
60 | |
61 | /* Insmod parameters */ | |
f4b50261 | 62 | I2C_CLIENT_INSMOD_5(w83781d, w83782d, w83783s, w83627hf, as99127f); |
1da177e4 LT |
63 | I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " |
64 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); | |
65 | ||
fabddcd4 JD |
66 | static int reset; |
67 | module_param(reset, bool, 0); | |
68 | MODULE_PARM_DESC(reset, "Set to one to reset chip on load"); | |
69 | ||
1da177e4 LT |
70 | static int init = 1; |
71 | module_param(init, bool, 0); | |
72 | MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization"); | |
73 | ||
74 | /* Constants specified below */ | |
75 | ||
76 | /* Length of ISA address segment */ | |
77 | #define W83781D_EXTENT 8 | |
78 | ||
79 | /* Where are the ISA address/data registers relative to the base address */ | |
80 | #define W83781D_ADDR_REG_OFFSET 5 | |
81 | #define W83781D_DATA_REG_OFFSET 6 | |
82 | ||
83 | /* The W83781D registers */ | |
84 | /* The W83782D registers for nr=7,8 are in bank 5 */ | |
85 | #define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \ | |
86 | (0x554 + (((nr) - 7) * 2))) | |
87 | #define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \ | |
88 | (0x555 + (((nr) - 7) * 2))) | |
89 | #define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \ | |
90 | (0x550 + (nr) - 7)) | |
91 | ||
92 | #define W83781D_REG_FAN_MIN(nr) (0x3a + (nr)) | |
93 | #define W83781D_REG_FAN(nr) (0x27 + (nr)) | |
94 | ||
95 | #define W83781D_REG_BANK 0x4E | |
96 | #define W83781D_REG_TEMP2_CONFIG 0x152 | |
97 | #define W83781D_REG_TEMP3_CONFIG 0x252 | |
98 | #define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \ | |
99 | ((nr == 2) ? (0x0150) : \ | |
100 | (0x27))) | |
101 | #define W83781D_REG_TEMP_HYST(nr) ((nr == 3) ? (0x253) : \ | |
102 | ((nr == 2) ? (0x153) : \ | |
103 | (0x3A))) | |
104 | #define W83781D_REG_TEMP_OVER(nr) ((nr == 3) ? (0x255) : \ | |
105 | ((nr == 2) ? (0x155) : \ | |
106 | (0x39))) | |
107 | ||
108 | #define W83781D_REG_CONFIG 0x40 | |
c7f5d7ed JD |
109 | |
110 | /* Interrupt status (W83781D, AS99127F) */ | |
1da177e4 LT |
111 | #define W83781D_REG_ALARM1 0x41 |
112 | #define W83781D_REG_ALARM2 0x42 | |
1da177e4 | 113 | |
c7f5d7ed JD |
114 | /* Real-time status (W83782D, W83783S, W83627HF) */ |
115 | #define W83782D_REG_ALARM1 0x459 | |
116 | #define W83782D_REG_ALARM2 0x45A | |
117 | #define W83782D_REG_ALARM3 0x45B | |
118 | ||
1da177e4 LT |
119 | #define W83781D_REG_BEEP_CONFIG 0x4D |
120 | #define W83781D_REG_BEEP_INTS1 0x56 | |
121 | #define W83781D_REG_BEEP_INTS2 0x57 | |
122 | #define W83781D_REG_BEEP_INTS3 0x453 /* not on W83781D */ | |
123 | ||
124 | #define W83781D_REG_VID_FANDIV 0x47 | |
125 | ||
126 | #define W83781D_REG_CHIPID 0x49 | |
127 | #define W83781D_REG_WCHIPID 0x58 | |
128 | #define W83781D_REG_CHIPMAN 0x4F | |
129 | #define W83781D_REG_PIN 0x4B | |
130 | ||
131 | /* 782D/783S only */ | |
132 | #define W83781D_REG_VBAT 0x5D | |
133 | ||
134 | /* PWM 782D (1-4) and 783S (1-2) only */ | |
135 | #define W83781D_REG_PWM1 0x5B /* 782d and 783s/627hf datasheets disagree */ | |
136 | /* on which is which; */ | |
137 | #define W83781D_REG_PWM2 0x5A /* We follow the 782d convention here, */ | |
138 | /* However 782d is probably wrong. */ | |
139 | #define W83781D_REG_PWM3 0x5E | |
140 | #define W83781D_REG_PWM4 0x5F | |
141 | #define W83781D_REG_PWMCLK12 0x5C | |
142 | #define W83781D_REG_PWMCLK34 0x45C | |
143 | static const u8 regpwm[] = { W83781D_REG_PWM1, W83781D_REG_PWM2, | |
144 | W83781D_REG_PWM3, W83781D_REG_PWM4 | |
145 | }; | |
146 | ||
147 | #define W83781D_REG_PWM(nr) (regpwm[(nr) - 1]) | |
148 | ||
149 | #define W83781D_REG_I2C_ADDR 0x48 | |
150 | #define W83781D_REG_I2C_SUBADDR 0x4A | |
151 | ||
152 | /* The following are undocumented in the data sheets however we | |
153 | received the information in an email from Winbond tech support */ | |
154 | /* Sensor selection - not on 781d */ | |
155 | #define W83781D_REG_SCFG1 0x5D | |
156 | static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 }; | |
157 | ||
158 | #define W83781D_REG_SCFG2 0x59 | |
159 | static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 }; | |
160 | ||
161 | #define W83781D_DEFAULT_BETA 3435 | |
162 | ||
163 | /* RT Table registers */ | |
164 | #define W83781D_REG_RT_IDX 0x50 | |
165 | #define W83781D_REG_RT_VAL 0x51 | |
166 | ||
474d00a8 JD |
167 | /* Conversions */ |
168 | #define IN_TO_REG(val) SENSORS_LIMIT(((val) + 8) / 16, 0, 255) | |
169 | #define IN_FROM_REG(val) ((val) * 16) | |
1da177e4 LT |
170 | |
171 | static inline u8 | |
172 | FAN_TO_REG(long rpm, int div) | |
173 | { | |
174 | if (rpm == 0) | |
175 | return 255; | |
176 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
177 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
178 | } | |
179 | ||
474d00a8 JD |
180 | static inline long |
181 | FAN_FROM_REG(u8 val, int div) | |
182 | { | |
183 | if (val == 0) | |
184 | return -1; | |
185 | if (val == 255) | |
186 | return 0; | |
187 | return 1350000 / (val * div); | |
188 | } | |
1da177e4 | 189 | |
474d00a8 JD |
190 | #define TEMP_TO_REG(val) SENSORS_LIMIT((val) / 1000, -127, 128) |
191 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 192 | |
1da177e4 LT |
193 | #define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \ |
194 | (val) ^ 0x7fff : (val)) | |
195 | #define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \ | |
196 | (~(val)) & 0x7fff : (val) & 0xffffff) | |
197 | ||
1da177e4 LT |
198 | #define DIV_FROM_REG(val) (1 << (val)) |
199 | ||
200 | static inline u8 | |
201 | DIV_TO_REG(long val, enum chips type) | |
202 | { | |
203 | int i; | |
204 | val = SENSORS_LIMIT(val, 1, | |
205 | ((type == w83781d | |
206 | || type == as99127f) ? 8 : 128)) >> 1; | |
abc01922 | 207 | for (i = 0; i < 7; i++) { |
1da177e4 LT |
208 | if (val == 0) |
209 | break; | |
210 | val >>= 1; | |
211 | } | |
474d00a8 | 212 | return i; |
1da177e4 LT |
213 | } |
214 | ||
215 | /* There are some complications in a module like this. First off, W83781D chips | |
216 | may be both present on the SMBus and the ISA bus, and we have to handle | |
217 | those cases separately at some places. Second, there might be several | |
218 | W83781D chips available (well, actually, that is probably never done; but | |
219 | it is a clean illustration of how to handle a case like that). Finally, | |
220 | a specific chip may be attached to *both* ISA and SMBus, and we would | |
221 | not like to detect it double. Fortunately, in the case of the W83781D at | |
222 | least, a register tells us what SMBus address we are on, so that helps | |
223 | a bit - except if there could be more than one SMBus. Groan. No solution | |
224 | for this yet. */ | |
225 | ||
7666c13c JD |
226 | /* For ISA chips, we abuse the i2c_client addr and name fields. We also use |
227 | the driver field to differentiate between I2C and ISA chips. */ | |
1da177e4 LT |
228 | struct w83781d_data { |
229 | struct i2c_client client; | |
943b0830 | 230 | struct class_device *class_dev; |
9a61bf63 | 231 | struct mutex lock; |
1da177e4 LT |
232 | enum chips type; |
233 | ||
9a61bf63 | 234 | struct mutex update_lock; |
1da177e4 LT |
235 | char valid; /* !=0 if following fields are valid */ |
236 | unsigned long last_updated; /* In jiffies */ | |
237 | ||
238 | struct i2c_client *lm75[2]; /* for secondary I2C addresses */ | |
239 | /* array of 2 pointers to subclients */ | |
240 | ||
241 | u8 in[9]; /* Register value - 8 & 9 for 782D only */ | |
242 | u8 in_max[9]; /* Register value - 8 & 9 for 782D only */ | |
243 | u8 in_min[9]; /* Register value - 8 & 9 for 782D only */ | |
244 | u8 fan[3]; /* Register value */ | |
245 | u8 fan_min[3]; /* Register value */ | |
474d00a8 JD |
246 | s8 temp; /* Register value */ |
247 | s8 temp_max; /* Register value */ | |
248 | s8 temp_max_hyst; /* Register value */ | |
1da177e4 LT |
249 | u16 temp_add[2]; /* Register value */ |
250 | u16 temp_max_add[2]; /* Register value */ | |
251 | u16 temp_max_hyst_add[2]; /* Register value */ | |
252 | u8 fan_div[3]; /* Register encoding, shifted right */ | |
253 | u8 vid; /* Register encoding, combined */ | |
254 | u32 alarms; /* Register encoding, combined */ | |
255 | u32 beep_mask; /* Register encoding, combined */ | |
256 | u8 beep_enable; /* Boolean */ | |
257 | u8 pwm[4]; /* Register value */ | |
258 | u8 pwmenable[4]; /* Boolean */ | |
259 | u16 sens[3]; /* 782D/783S only. | |
260 | 1 = pentium diode; 2 = 3904 diode; | |
261 | 3000-5000 = thermistor beta. | |
262 | Default = 3435. | |
263 | Other Betas unimplemented */ | |
264 | u8 vrm; | |
265 | }; | |
266 | ||
267 | static int w83781d_attach_adapter(struct i2c_adapter *adapter); | |
268 | static int w83781d_detect(struct i2c_adapter *adapter, int address, int kind); | |
269 | static int w83781d_detach_client(struct i2c_client *client); | |
270 | ||
7666c13c JD |
271 | static int __devinit w83781d_isa_probe(struct platform_device *pdev); |
272 | static int __devexit w83781d_isa_remove(struct platform_device *pdev); | |
273 | ||
f6c27fc1 DJ |
274 | static int w83781d_read_value(struct i2c_client *client, u16 reg); |
275 | static int w83781d_write_value(struct i2c_client *client, u16 reg, u16 value); | |
1da177e4 | 276 | static struct w83781d_data *w83781d_update_device(struct device *dev); |
7666c13c | 277 | static void w83781d_init_device(struct device *dev); |
1da177e4 LT |
278 | |
279 | static struct i2c_driver w83781d_driver = { | |
cdaf7934 | 280 | .driver = { |
cdaf7934 LR |
281 | .name = "w83781d", |
282 | }, | |
1da177e4 | 283 | .id = I2C_DRIVERID_W83781D, |
1da177e4 LT |
284 | .attach_adapter = w83781d_attach_adapter, |
285 | .detach_client = w83781d_detach_client, | |
286 | }; | |
287 | ||
7666c13c | 288 | static struct platform_driver w83781d_isa_driver = { |
cdaf7934 | 289 | .driver = { |
87218842 | 290 | .owner = THIS_MODULE, |
7666c13c | 291 | .name = "w83781d", |
cdaf7934 | 292 | }, |
7666c13c JD |
293 | .probe = w83781d_isa_probe, |
294 | .remove = w83781d_isa_remove, | |
fde09509 JD |
295 | }; |
296 | ||
297 | ||
1da177e4 LT |
298 | /* following are the sysfs callback functions */ |
299 | #define show_in_reg(reg) \ | |
300 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
301 | { \ | |
302 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
474d00a8 | 303 | return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->reg[nr])); \ |
1da177e4 LT |
304 | } |
305 | show_in_reg(in); | |
306 | show_in_reg(in_min); | |
307 | show_in_reg(in_max); | |
308 | ||
309 | #define store_in_reg(REG, reg) \ | |
310 | static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \ | |
311 | { \ | |
7666c13c JD |
312 | struct w83781d_data *data = dev_get_drvdata(dev); \ |
313 | struct i2c_client *client = &data->client; \ | |
1da177e4 LT |
314 | u32 val; \ |
315 | \ | |
474d00a8 | 316 | val = simple_strtoul(buf, NULL, 10); \ |
1da177e4 | 317 | \ |
9a61bf63 | 318 | mutex_lock(&data->update_lock); \ |
1da177e4 LT |
319 | data->in_##reg[nr] = IN_TO_REG(val); \ |
320 | w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \ | |
321 | \ | |
9a61bf63 | 322 | mutex_unlock(&data->update_lock); \ |
1da177e4 LT |
323 | return count; \ |
324 | } | |
325 | store_in_reg(MIN, min); | |
326 | store_in_reg(MAX, max); | |
327 | ||
328 | #define sysfs_in_offset(offset) \ | |
329 | static ssize_t \ | |
e404e274 | 330 | show_regs_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
331 | { \ |
332 | return show_in(dev, buf, offset); \ | |
333 | } \ | |
334 | static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL); | |
335 | ||
336 | #define sysfs_in_reg_offset(reg, offset) \ | |
e404e274 | 337 | static ssize_t show_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
338 | { \ |
339 | return show_in_##reg (dev, buf, offset); \ | |
340 | } \ | |
e404e274 | 341 | static ssize_t store_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
342 | { \ |
343 | return store_in_##reg (dev, buf, count, offset); \ | |
344 | } \ | |
345 | static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_in_##reg##offset, store_regs_in_##reg##offset); | |
346 | ||
347 | #define sysfs_in_offsets(offset) \ | |
348 | sysfs_in_offset(offset); \ | |
349 | sysfs_in_reg_offset(min, offset); \ | |
350 | sysfs_in_reg_offset(max, offset); | |
351 | ||
352 | sysfs_in_offsets(0); | |
353 | sysfs_in_offsets(1); | |
354 | sysfs_in_offsets(2); | |
355 | sysfs_in_offsets(3); | |
356 | sysfs_in_offsets(4); | |
357 | sysfs_in_offsets(5); | |
358 | sysfs_in_offsets(6); | |
359 | sysfs_in_offsets(7); | |
360 | sysfs_in_offsets(8); | |
361 | ||
1da177e4 LT |
362 | #define show_fan_reg(reg) \ |
363 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
364 | { \ | |
365 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
366 | return sprintf(buf,"%ld\n", \ | |
367 | FAN_FROM_REG(data->reg[nr-1], (long)DIV_FROM_REG(data->fan_div[nr-1]))); \ | |
368 | } | |
369 | show_fan_reg(fan); | |
370 | show_fan_reg(fan_min); | |
371 | ||
372 | static ssize_t | |
373 | store_fan_min(struct device *dev, const char *buf, size_t count, int nr) | |
374 | { | |
7666c13c JD |
375 | struct w83781d_data *data = dev_get_drvdata(dev); |
376 | struct i2c_client *client = &data->client; | |
1da177e4 LT |
377 | u32 val; |
378 | ||
379 | val = simple_strtoul(buf, NULL, 10); | |
380 | ||
9a61bf63 | 381 | mutex_lock(&data->update_lock); |
1da177e4 LT |
382 | data->fan_min[nr - 1] = |
383 | FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1])); | |
384 | w83781d_write_value(client, W83781D_REG_FAN_MIN(nr), | |
385 | data->fan_min[nr - 1]); | |
386 | ||
9a61bf63 | 387 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
388 | return count; |
389 | } | |
390 | ||
391 | #define sysfs_fan_offset(offset) \ | |
e404e274 | 392 | static ssize_t show_regs_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
393 | { \ |
394 | return show_fan(dev, buf, offset); \ | |
395 | } \ | |
396 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL); | |
397 | ||
398 | #define sysfs_fan_min_offset(offset) \ | |
e404e274 | 399 | static ssize_t show_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
400 | { \ |
401 | return show_fan_min(dev, buf, offset); \ | |
402 | } \ | |
e404e274 | 403 | static ssize_t store_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
404 | { \ |
405 | return store_fan_min(dev, buf, count, offset); \ | |
406 | } \ | |
407 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, show_regs_fan_min##offset, store_regs_fan_min##offset); | |
408 | ||
409 | sysfs_fan_offset(1); | |
410 | sysfs_fan_min_offset(1); | |
411 | sysfs_fan_offset(2); | |
412 | sysfs_fan_min_offset(2); | |
413 | sysfs_fan_offset(3); | |
414 | sysfs_fan_min_offset(3); | |
415 | ||
1da177e4 LT |
416 | #define show_temp_reg(reg) \ |
417 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
418 | { \ | |
419 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
420 | if (nr >= 2) { /* TEMP2 and TEMP3 */ \ | |
421 | return sprintf(buf,"%d\n", \ | |
422 | LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \ | |
423 | } else { /* TEMP1 */ \ | |
424 | return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \ | |
425 | } \ | |
426 | } | |
427 | show_temp_reg(temp); | |
428 | show_temp_reg(temp_max); | |
429 | show_temp_reg(temp_max_hyst); | |
430 | ||
431 | #define store_temp_reg(REG, reg) \ | |
432 | static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \ | |
433 | { \ | |
7666c13c JD |
434 | struct w83781d_data *data = dev_get_drvdata(dev); \ |
435 | struct i2c_client *client = &data->client; \ | |
1da177e4 LT |
436 | s32 val; \ |
437 | \ | |
438 | val = simple_strtol(buf, NULL, 10); \ | |
439 | \ | |
9a61bf63 | 440 | mutex_lock(&data->update_lock); \ |
1da177e4 LT |
441 | \ |
442 | if (nr >= 2) { /* TEMP2 and TEMP3 */ \ | |
443 | data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \ | |
444 | w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \ | |
445 | data->temp_##reg##_add[nr-2]); \ | |
446 | } else { /* TEMP1 */ \ | |
447 | data->temp_##reg = TEMP_TO_REG(val); \ | |
448 | w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \ | |
449 | data->temp_##reg); \ | |
450 | } \ | |
451 | \ | |
9a61bf63 | 452 | mutex_unlock(&data->update_lock); \ |
1da177e4 LT |
453 | return count; \ |
454 | } | |
455 | store_temp_reg(OVER, max); | |
456 | store_temp_reg(HYST, max_hyst); | |
457 | ||
458 | #define sysfs_temp_offset(offset) \ | |
459 | static ssize_t \ | |
e404e274 | 460 | show_regs_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
461 | { \ |
462 | return show_temp(dev, buf, offset); \ | |
463 | } \ | |
464 | static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL); | |
465 | ||
466 | #define sysfs_temp_reg_offset(reg, offset) \ | |
e404e274 | 467 | static ssize_t show_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
468 | { \ |
469 | return show_temp_##reg (dev, buf, offset); \ | |
470 | } \ | |
e404e274 | 471 | static ssize_t store_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
472 | { \ |
473 | return store_temp_##reg (dev, buf, count, offset); \ | |
474 | } \ | |
475 | static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_temp_##reg##offset, store_regs_temp_##reg##offset); | |
476 | ||
477 | #define sysfs_temp_offsets(offset) \ | |
478 | sysfs_temp_offset(offset); \ | |
479 | sysfs_temp_reg_offset(max, offset); \ | |
480 | sysfs_temp_reg_offset(max_hyst, offset); | |
481 | ||
482 | sysfs_temp_offsets(1); | |
483 | sysfs_temp_offsets(2); | |
484 | sysfs_temp_offsets(3); | |
485 | ||
1da177e4 | 486 | static ssize_t |
e404e274 | 487 | show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
488 | { |
489 | struct w83781d_data *data = w83781d_update_device(dev); | |
490 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
491 | } | |
492 | ||
311ce2ef JC |
493 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); |
494 | ||
1da177e4 | 495 | static ssize_t |
e404e274 | 496 | show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
497 | { |
498 | struct w83781d_data *data = w83781d_update_device(dev); | |
499 | return sprintf(buf, "%ld\n", (long) data->vrm); | |
500 | } | |
501 | ||
502 | static ssize_t | |
e404e274 | 503 | store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 504 | { |
7666c13c | 505 | struct w83781d_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
506 | u32 val; |
507 | ||
508 | val = simple_strtoul(buf, NULL, 10); | |
509 | data->vrm = val; | |
510 | ||
511 | return count; | |
512 | } | |
513 | ||
311ce2ef JC |
514 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); |
515 | ||
1da177e4 | 516 | static ssize_t |
e404e274 | 517 | show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
518 | { |
519 | struct w83781d_data *data = w83781d_update_device(dev); | |
68188ba7 | 520 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
521 | } |
522 | ||
311ce2ef JC |
523 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); |
524 | ||
e404e274 | 525 | static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
526 | { |
527 | struct w83781d_data *data = w83781d_update_device(dev); | |
528 | return sprintf(buf, "%ld\n", | |
529 | (long)BEEP_MASK_FROM_REG(data->beep_mask, data->type)); | |
530 | } | |
e404e274 | 531 | static ssize_t show_beep_enable (struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
532 | { |
533 | struct w83781d_data *data = w83781d_update_device(dev); | |
474d00a8 | 534 | return sprintf(buf, "%ld\n", (long)data->beep_enable); |
1da177e4 LT |
535 | } |
536 | ||
537 | #define BEEP_ENABLE 0 /* Store beep_enable */ | |
538 | #define BEEP_MASK 1 /* Store beep_mask */ | |
539 | ||
540 | static ssize_t | |
541 | store_beep_reg(struct device *dev, const char *buf, size_t count, | |
542 | int update_mask) | |
543 | { | |
7666c13c JD |
544 | struct w83781d_data *data = dev_get_drvdata(dev); |
545 | struct i2c_client *client = &data->client; | |
1da177e4 LT |
546 | u32 val, val2; |
547 | ||
548 | val = simple_strtoul(buf, NULL, 10); | |
549 | ||
9a61bf63 | 550 | mutex_lock(&data->update_lock); |
1da177e4 LT |
551 | |
552 | if (update_mask == BEEP_MASK) { /* We are storing beep_mask */ | |
553 | data->beep_mask = BEEP_MASK_TO_REG(val, data->type); | |
554 | w83781d_write_value(client, W83781D_REG_BEEP_INTS1, | |
555 | data->beep_mask & 0xff); | |
556 | ||
557 | if ((data->type != w83781d) && (data->type != as99127f)) { | |
558 | w83781d_write_value(client, W83781D_REG_BEEP_INTS3, | |
559 | ((data->beep_mask) >> 16) & 0xff); | |
560 | } | |
561 | ||
562 | val2 = (data->beep_mask >> 8) & 0x7f; | |
563 | } else { /* We are storing beep_enable */ | |
564 | val2 = w83781d_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f; | |
474d00a8 | 565 | data->beep_enable = !!val; |
1da177e4 LT |
566 | } |
567 | ||
568 | w83781d_write_value(client, W83781D_REG_BEEP_INTS2, | |
569 | val2 | data->beep_enable << 7); | |
570 | ||
9a61bf63 | 571 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
572 | return count; |
573 | } | |
574 | ||
575 | #define sysfs_beep(REG, reg) \ | |
e404e274 | 576 | static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 | 577 | { \ |
e404e274 | 578 | return show_beep_##reg(dev, attr, buf); \ |
1da177e4 | 579 | } \ |
e404e274 | 580 | static ssize_t store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
581 | { \ |
582 | return store_beep_reg(dev, buf, count, BEEP_##REG); \ | |
583 | } \ | |
584 | static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, show_regs_beep_##reg, store_regs_beep_##reg); | |
585 | ||
586 | sysfs_beep(ENABLE, enable); | |
587 | sysfs_beep(MASK, mask); | |
588 | ||
1da177e4 LT |
589 | static ssize_t |
590 | show_fan_div_reg(struct device *dev, char *buf, int nr) | |
591 | { | |
592 | struct w83781d_data *data = w83781d_update_device(dev); | |
593 | return sprintf(buf, "%ld\n", | |
594 | (long) DIV_FROM_REG(data->fan_div[nr - 1])); | |
595 | } | |
596 | ||
597 | /* Note: we save and restore the fan minimum here, because its value is | |
598 | determined in part by the fan divisor. This follows the principle of | |
d6e05edc | 599 | least surprise; the user doesn't expect the fan minimum to change just |
1da177e4 LT |
600 | because the divisor changed. */ |
601 | static ssize_t | |
602 | store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr) | |
603 | { | |
7666c13c JD |
604 | struct w83781d_data *data = dev_get_drvdata(dev); |
605 | struct i2c_client *client = &data->client; | |
1da177e4 LT |
606 | unsigned long min; |
607 | u8 reg; | |
608 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
609 | ||
9a61bf63 | 610 | mutex_lock(&data->update_lock); |
1da177e4 LT |
611 | |
612 | /* Save fan_min */ | |
613 | min = FAN_FROM_REG(data->fan_min[nr], | |
614 | DIV_FROM_REG(data->fan_div[nr])); | |
615 | ||
616 | data->fan_div[nr] = DIV_TO_REG(val, data->type); | |
617 | ||
618 | reg = (w83781d_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV) | |
619 | & (nr==0 ? 0xcf : 0x3f)) | |
620 | | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6)); | |
621 | w83781d_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg); | |
622 | ||
623 | /* w83781d and as99127f don't have extended divisor bits */ | |
624 | if (data->type != w83781d && data->type != as99127f) { | |
625 | reg = (w83781d_read_value(client, W83781D_REG_VBAT) | |
626 | & ~(1 << (5 + nr))) | |
627 | | ((data->fan_div[nr] & 0x04) << (3 + nr)); | |
628 | w83781d_write_value(client, W83781D_REG_VBAT, reg); | |
629 | } | |
630 | ||
631 | /* Restore fan_min */ | |
632 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
633 | w83781d_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]); | |
634 | ||
9a61bf63 | 635 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
636 | return count; |
637 | } | |
638 | ||
639 | #define sysfs_fan_div(offset) \ | |
e404e274 | 640 | static ssize_t show_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
641 | { \ |
642 | return show_fan_div_reg(dev, buf, offset); \ | |
643 | } \ | |
e404e274 | 644 | static ssize_t store_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
645 | { \ |
646 | return store_fan_div_reg(dev, buf, count, offset - 1); \ | |
647 | } \ | |
648 | static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, show_regs_fan_div_##offset, store_regs_fan_div_##offset); | |
649 | ||
650 | sysfs_fan_div(1); | |
651 | sysfs_fan_div(2); | |
652 | sysfs_fan_div(3); | |
653 | ||
1da177e4 LT |
654 | static ssize_t |
655 | show_pwm_reg(struct device *dev, char *buf, int nr) | |
656 | { | |
657 | struct w83781d_data *data = w83781d_update_device(dev); | |
474d00a8 | 658 | return sprintf(buf, "%ld\n", (long)data->pwm[nr - 1]); |
1da177e4 LT |
659 | } |
660 | ||
661 | static ssize_t | |
662 | show_pwmenable_reg(struct device *dev, char *buf, int nr) | |
663 | { | |
664 | struct w83781d_data *data = w83781d_update_device(dev); | |
665 | return sprintf(buf, "%ld\n", (long) data->pwmenable[nr - 1]); | |
666 | } | |
667 | ||
668 | static ssize_t | |
669 | store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr) | |
670 | { | |
7666c13c JD |
671 | struct w83781d_data *data = dev_get_drvdata(dev); |
672 | struct i2c_client *client = &data->client; | |
1da177e4 LT |
673 | u32 val; |
674 | ||
675 | val = simple_strtoul(buf, NULL, 10); | |
676 | ||
9a61bf63 | 677 | mutex_lock(&data->update_lock); |
474d00a8 | 678 | data->pwm[nr - 1] = SENSORS_LIMIT(val, 0, 255); |
1da177e4 | 679 | w83781d_write_value(client, W83781D_REG_PWM(nr), data->pwm[nr - 1]); |
9a61bf63 | 680 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
681 | return count; |
682 | } | |
683 | ||
684 | static ssize_t | |
685 | store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr) | |
686 | { | |
7666c13c JD |
687 | struct w83781d_data *data = dev_get_drvdata(dev); |
688 | struct i2c_client *client = &data->client; | |
1da177e4 LT |
689 | u32 val, reg; |
690 | ||
691 | val = simple_strtoul(buf, NULL, 10); | |
692 | ||
9a61bf63 | 693 | mutex_lock(&data->update_lock); |
1da177e4 LT |
694 | |
695 | switch (val) { | |
696 | case 0: | |
697 | case 1: | |
698 | reg = w83781d_read_value(client, W83781D_REG_PWMCLK12); | |
699 | w83781d_write_value(client, W83781D_REG_PWMCLK12, | |
700 | (reg & 0xf7) | (val << 3)); | |
701 | ||
702 | reg = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); | |
703 | w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, | |
704 | (reg & 0xef) | (!val << 4)); | |
705 | ||
706 | data->pwmenable[nr - 1] = val; | |
707 | break; | |
708 | ||
709 | default: | |
9a61bf63 | 710 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
711 | return -EINVAL; |
712 | } | |
713 | ||
9a61bf63 | 714 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
715 | return count; |
716 | } | |
717 | ||
718 | #define sysfs_pwm(offset) \ | |
e404e274 | 719 | static ssize_t show_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
720 | { \ |
721 | return show_pwm_reg(dev, buf, offset); \ | |
722 | } \ | |
e404e274 | 723 | static ssize_t store_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
724 | const char *buf, size_t count) \ |
725 | { \ | |
726 | return store_pwm_reg(dev, buf, count, offset); \ | |
727 | } \ | |
728 | static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
729 | show_regs_pwm_##offset, store_regs_pwm_##offset); | |
730 | ||
731 | #define sysfs_pwmenable(offset) \ | |
e404e274 | 732 | static ssize_t show_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
733 | { \ |
734 | return show_pwmenable_reg(dev, buf, offset); \ | |
735 | } \ | |
e404e274 | 736 | static ssize_t store_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
737 | const char *buf, size_t count) \ |
738 | { \ | |
739 | return store_pwmenable_reg(dev, buf, count, offset); \ | |
740 | } \ | |
741 | static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ | |
742 | show_regs_pwmenable_##offset, store_regs_pwmenable_##offset); | |
743 | ||
744 | sysfs_pwm(1); | |
745 | sysfs_pwm(2); | |
746 | sysfs_pwmenable(2); /* only PWM2 can be enabled/disabled */ | |
747 | sysfs_pwm(3); | |
748 | sysfs_pwm(4); | |
749 | ||
1da177e4 LT |
750 | static ssize_t |
751 | show_sensor_reg(struct device *dev, char *buf, int nr) | |
752 | { | |
753 | struct w83781d_data *data = w83781d_update_device(dev); | |
754 | return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]); | |
755 | } | |
756 | ||
757 | static ssize_t | |
758 | store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr) | |
759 | { | |
7666c13c JD |
760 | struct w83781d_data *data = dev_get_drvdata(dev); |
761 | struct i2c_client *client = &data->client; | |
1da177e4 LT |
762 | u32 val, tmp; |
763 | ||
764 | val = simple_strtoul(buf, NULL, 10); | |
765 | ||
9a61bf63 | 766 | mutex_lock(&data->update_lock); |
1da177e4 LT |
767 | |
768 | switch (val) { | |
769 | case 1: /* PII/Celeron diode */ | |
770 | tmp = w83781d_read_value(client, W83781D_REG_SCFG1); | |
771 | w83781d_write_value(client, W83781D_REG_SCFG1, | |
772 | tmp | BIT_SCFG1[nr - 1]); | |
773 | tmp = w83781d_read_value(client, W83781D_REG_SCFG2); | |
774 | w83781d_write_value(client, W83781D_REG_SCFG2, | |
775 | tmp | BIT_SCFG2[nr - 1]); | |
776 | data->sens[nr - 1] = val; | |
777 | break; | |
778 | case 2: /* 3904 */ | |
779 | tmp = w83781d_read_value(client, W83781D_REG_SCFG1); | |
780 | w83781d_write_value(client, W83781D_REG_SCFG1, | |
781 | tmp | BIT_SCFG1[nr - 1]); | |
782 | tmp = w83781d_read_value(client, W83781D_REG_SCFG2); | |
783 | w83781d_write_value(client, W83781D_REG_SCFG2, | |
784 | tmp & ~BIT_SCFG2[nr - 1]); | |
785 | data->sens[nr - 1] = val; | |
786 | break; | |
787 | case W83781D_DEFAULT_BETA: /* thermistor */ | |
788 | tmp = w83781d_read_value(client, W83781D_REG_SCFG1); | |
789 | w83781d_write_value(client, W83781D_REG_SCFG1, | |
790 | tmp & ~BIT_SCFG1[nr - 1]); | |
791 | data->sens[nr - 1] = val; | |
792 | break; | |
793 | default: | |
794 | dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or %d\n", | |
795 | (long) val, W83781D_DEFAULT_BETA); | |
796 | break; | |
797 | } | |
798 | ||
9a61bf63 | 799 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
800 | return count; |
801 | } | |
802 | ||
803 | #define sysfs_sensor(offset) \ | |
e404e274 | 804 | static ssize_t show_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
805 | { \ |
806 | return show_sensor_reg(dev, buf, offset); \ | |
807 | } \ | |
e404e274 | 808 | static ssize_t store_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
809 | { \ |
810 | return store_sensor_reg(dev, buf, count, offset); \ | |
811 | } \ | |
812 | static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, show_regs_sensor_##offset, store_regs_sensor_##offset); | |
813 | ||
814 | sysfs_sensor(1); | |
815 | sysfs_sensor(2); | |
816 | sysfs_sensor(3); | |
817 | ||
7666c13c JD |
818 | /* I2C devices get this name attribute automatically, but for ISA devices |
819 | we must create it by ourselves. */ | |
820 | static ssize_t | |
821 | show_name(struct device *dev, struct device_attribute *devattr, char *buf) | |
822 | { | |
823 | struct w83781d_data *data = dev_get_drvdata(dev); | |
824 | return sprintf(buf, "%s\n", data->client.name); | |
825 | } | |
826 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
827 | ||
1da177e4 LT |
828 | /* This function is called when: |
829 | * w83781d_driver is inserted (when this module is loaded), for each | |
830 | available adapter | |
831 | * when a new adapter is inserted (and w83781d_driver is still present) */ | |
832 | static int | |
833 | w83781d_attach_adapter(struct i2c_adapter *adapter) | |
834 | { | |
835 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
836 | return 0; | |
2ed2dc3c | 837 | return i2c_probe(adapter, &addr_data, w83781d_detect); |
1da177e4 LT |
838 | } |
839 | ||
840 | /* Assumes that adapter is of I2C, not ISA variety. | |
841 | * OTHERWISE DON'T CALL THIS | |
842 | */ | |
843 | static int | |
844 | w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind, | |
845 | struct i2c_client *new_client) | |
846 | { | |
847 | int i, val1 = 0, id; | |
848 | int err; | |
849 | const char *client_name = ""; | |
850 | struct w83781d_data *data = i2c_get_clientdata(new_client); | |
851 | ||
ba9c2e8d | 852 | data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
853 | if (!(data->lm75[0])) { |
854 | err = -ENOMEM; | |
855 | goto ERROR_SC_0; | |
856 | } | |
1da177e4 LT |
857 | |
858 | id = i2c_adapter_id(adapter); | |
859 | ||
860 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
861 | for (i = 2; i <= 3; i++) { | |
862 | if (force_subclients[i] < 0x48 || | |
863 | force_subclients[i] > 0x4f) { | |
864 | dev_err(&new_client->dev, "Invalid subclient " | |
865 | "address %d; must be 0x48-0x4f\n", | |
866 | force_subclients[i]); | |
867 | err = -EINVAL; | |
868 | goto ERROR_SC_1; | |
869 | } | |
870 | } | |
871 | w83781d_write_value(new_client, W83781D_REG_I2C_SUBADDR, | |
872 | (force_subclients[2] & 0x07) | | |
873 | ((force_subclients[3] & 0x07) << 4)); | |
874 | data->lm75[0]->addr = force_subclients[2]; | |
875 | } else { | |
876 | val1 = w83781d_read_value(new_client, W83781D_REG_I2C_SUBADDR); | |
877 | data->lm75[0]->addr = 0x48 + (val1 & 0x07); | |
878 | } | |
879 | ||
880 | if (kind != w83783s) { | |
ba9c2e8d | 881 | data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
882 | if (!(data->lm75[1])) { |
883 | err = -ENOMEM; | |
884 | goto ERROR_SC_1; | |
885 | } | |
1da177e4 LT |
886 | |
887 | if (force_subclients[0] == id && | |
888 | force_subclients[1] == address) { | |
889 | data->lm75[1]->addr = force_subclients[3]; | |
890 | } else { | |
891 | data->lm75[1]->addr = 0x48 + ((val1 >> 4) & 0x07); | |
892 | } | |
893 | if (data->lm75[0]->addr == data->lm75[1]->addr) { | |
894 | dev_err(&new_client->dev, | |
895 | "Duplicate addresses 0x%x for subclients.\n", | |
896 | data->lm75[0]->addr); | |
897 | err = -EBUSY; | |
898 | goto ERROR_SC_2; | |
899 | } | |
900 | } | |
901 | ||
902 | if (kind == w83781d) | |
903 | client_name = "w83781d subclient"; | |
904 | else if (kind == w83782d) | |
905 | client_name = "w83782d subclient"; | |
906 | else if (kind == w83783s) | |
907 | client_name = "w83783s subclient"; | |
908 | else if (kind == w83627hf) | |
909 | client_name = "w83627hf subclient"; | |
910 | else if (kind == as99127f) | |
911 | client_name = "as99127f subclient"; | |
912 | ||
913 | for (i = 0; i <= 1; i++) { | |
914 | /* store all data in w83781d */ | |
915 | i2c_set_clientdata(data->lm75[i], NULL); | |
916 | data->lm75[i]->adapter = adapter; | |
917 | data->lm75[i]->driver = &w83781d_driver; | |
918 | data->lm75[i]->flags = 0; | |
919 | strlcpy(data->lm75[i]->name, client_name, | |
920 | I2C_NAME_SIZE); | |
921 | if ((err = i2c_attach_client(data->lm75[i]))) { | |
922 | dev_err(&new_client->dev, "Subclient %d " | |
923 | "registration at address 0x%x " | |
924 | "failed.\n", i, data->lm75[i]->addr); | |
925 | if (i == 1) | |
926 | goto ERROR_SC_3; | |
927 | goto ERROR_SC_2; | |
928 | } | |
929 | if (kind == w83783s) | |
930 | break; | |
931 | } | |
932 | ||
933 | return 0; | |
934 | ||
935 | /* Undo inits in case of errors */ | |
936 | ERROR_SC_3: | |
937 | i2c_detach_client(data->lm75[0]); | |
938 | ERROR_SC_2: | |
6044ec88 | 939 | kfree(data->lm75[1]); |
1da177e4 | 940 | ERROR_SC_1: |
6044ec88 | 941 | kfree(data->lm75[0]); |
1da177e4 LT |
942 | ERROR_SC_0: |
943 | return err; | |
944 | } | |
945 | ||
311ce2ef JC |
946 | #define IN_UNIT_ATTRS(X) \ |
947 | &dev_attr_in##X##_input.attr, \ | |
948 | &dev_attr_in##X##_min.attr, \ | |
949 | &dev_attr_in##X##_max.attr | |
950 | ||
951 | #define FAN_UNIT_ATTRS(X) \ | |
952 | &dev_attr_fan##X##_input.attr, \ | |
953 | &dev_attr_fan##X##_min.attr, \ | |
954 | &dev_attr_fan##X##_div.attr | |
955 | ||
956 | #define TEMP_UNIT_ATTRS(X) \ | |
957 | &dev_attr_temp##X##_input.attr, \ | |
958 | &dev_attr_temp##X##_max.attr, \ | |
959 | &dev_attr_temp##X##_max_hyst.attr | |
960 | ||
961 | static struct attribute* w83781d_attributes[] = { | |
962 | IN_UNIT_ATTRS(0), | |
963 | IN_UNIT_ATTRS(2), | |
964 | IN_UNIT_ATTRS(3), | |
965 | IN_UNIT_ATTRS(4), | |
966 | IN_UNIT_ATTRS(5), | |
967 | IN_UNIT_ATTRS(6), | |
968 | FAN_UNIT_ATTRS(1), | |
969 | FAN_UNIT_ATTRS(2), | |
970 | FAN_UNIT_ATTRS(3), | |
971 | TEMP_UNIT_ATTRS(1), | |
972 | TEMP_UNIT_ATTRS(2), | |
973 | &dev_attr_cpu0_vid.attr, | |
974 | &dev_attr_vrm.attr, | |
975 | &dev_attr_alarms.attr, | |
976 | &dev_attr_beep_mask.attr, | |
977 | &dev_attr_beep_enable.attr, | |
978 | NULL | |
979 | }; | |
980 | static const struct attribute_group w83781d_group = { | |
981 | .attrs = w83781d_attributes, | |
982 | }; | |
983 | ||
984 | static struct attribute *w83781d_attributes_opt[] = { | |
985 | IN_UNIT_ATTRS(1), | |
986 | IN_UNIT_ATTRS(7), | |
987 | IN_UNIT_ATTRS(8), | |
988 | TEMP_UNIT_ATTRS(3), | |
989 | &dev_attr_pwm1.attr, | |
990 | &dev_attr_pwm2.attr, | |
991 | &dev_attr_pwm2_enable.attr, | |
992 | &dev_attr_pwm3.attr, | |
993 | &dev_attr_pwm4.attr, | |
994 | &dev_attr_temp1_type.attr, | |
995 | &dev_attr_temp2_type.attr, | |
996 | &dev_attr_temp3_type.attr, | |
997 | NULL | |
998 | }; | |
999 | static const struct attribute_group w83781d_group_opt = { | |
1000 | .attrs = w83781d_attributes_opt, | |
1001 | }; | |
1002 | ||
7666c13c | 1003 | /* No clean up is done on error, it's up to the caller */ |
1da177e4 | 1004 | static int |
7666c13c | 1005 | w83781d_create_files(struct device *dev, int kind, int is_isa) |
1da177e4 | 1006 | { |
1da177e4 | 1007 | int err; |
1da177e4 | 1008 | |
7666c13c JD |
1009 | if ((err = sysfs_create_group(&dev->kobj, &w83781d_group))) |
1010 | return err; | |
1011 | ||
1012 | if (kind != w83783s) { | |
1013 | if ((err = device_create_file(dev, &dev_attr_in1_input)) | |
1014 | || (err = device_create_file(dev, &dev_attr_in1_min)) | |
1015 | || (err = device_create_file(dev, &dev_attr_in1_max))) | |
1016 | return err; | |
1017 | } | |
1018 | if (kind != as99127f && kind != w83781d && kind != w83783s) { | |
1019 | if ((err = device_create_file(dev, &dev_attr_in7_input)) | |
1020 | || (err = device_create_file(dev, &dev_attr_in7_min)) | |
1021 | || (err = device_create_file(dev, &dev_attr_in7_max)) | |
1022 | || (err = device_create_file(dev, &dev_attr_in8_input)) | |
1023 | || (err = device_create_file(dev, &dev_attr_in8_min)) | |
1024 | || (err = device_create_file(dev, &dev_attr_in8_max))) | |
1025 | return err; | |
1026 | } | |
1027 | if (kind != w83783s) { | |
1028 | if ((err = device_create_file(dev, &dev_attr_temp3_input)) | |
1029 | || (err = device_create_file(dev, &dev_attr_temp3_max)) | |
1030 | || (err = device_create_file(dev, | |
1031 | &dev_attr_temp3_max_hyst))) | |
1032 | return err; | |
1da177e4 LT |
1033 | } |
1034 | ||
7666c13c JD |
1035 | if (kind != w83781d && kind != as99127f) { |
1036 | if ((err = device_create_file(dev, &dev_attr_pwm1)) | |
1037 | || (err = device_create_file(dev, &dev_attr_pwm2)) | |
1038 | || (err = device_create_file(dev, &dev_attr_pwm2_enable))) | |
1039 | return err; | |
1da177e4 | 1040 | } |
7666c13c JD |
1041 | if (kind == w83782d && !is_isa) { |
1042 | if ((err = device_create_file(dev, &dev_attr_pwm3)) | |
1043 | || (err = device_create_file(dev, &dev_attr_pwm4))) | |
1044 | return err; | |
1045 | } | |
1046 | ||
1047 | if (kind != as99127f && kind != w83781d) { | |
1048 | if ((err = device_create_file(dev, &dev_attr_temp1_type)) | |
1049 | || (err = device_create_file(dev, | |
1050 | &dev_attr_temp2_type))) | |
1051 | return err; | |
1052 | if (kind != w83783s) { | |
1053 | if ((err = device_create_file(dev, | |
1054 | &dev_attr_temp3_type))) | |
1055 | return err; | |
1da177e4 | 1056 | } |
7666c13c | 1057 | } |
1da177e4 | 1058 | |
7666c13c JD |
1059 | if (is_isa) { |
1060 | err = device_create_file(&pdev->dev, &dev_attr_name); | |
1061 | if (err) | |
1062 | return err; | |
1063 | } | |
1da177e4 | 1064 | |
7666c13c JD |
1065 | return 0; |
1066 | } | |
1da177e4 | 1067 | |
7666c13c JD |
1068 | static int |
1069 | w83781d_detect(struct i2c_adapter *adapter, int address, int kind) | |
1070 | { | |
1071 | int val1 = 0, val2; | |
1072 | struct i2c_client *client; | |
1073 | struct device *dev; | |
1074 | struct w83781d_data *data; | |
1075 | int err; | |
1076 | const char *client_name = ""; | |
1077 | enum vendor { winbond, asus } vendid; | |
1078 | ||
1079 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1080 | err = -EINVAL; | |
1081 | goto ERROR1; | |
1da177e4 LT |
1082 | } |
1083 | ||
1084 | /* OK. For now, we presume we have a valid client. We now create the | |
1085 | client structure, even though we cannot fill it completely yet. | |
1086 | But it allows us to access w83781d_{read,write}_value. */ | |
1087 | ||
ba9c2e8d | 1088 | if (!(data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL))) { |
1da177e4 LT |
1089 | err = -ENOMEM; |
1090 | goto ERROR1; | |
1091 | } | |
1da177e4 | 1092 | |
311ce2ef JC |
1093 | client = &data->client; |
1094 | i2c_set_clientdata(client, data); | |
1095 | client->addr = address; | |
9a61bf63 | 1096 | mutex_init(&data->lock); |
311ce2ef | 1097 | client->adapter = adapter; |
7666c13c | 1098 | client->driver = &w83781d_driver; |
311ce2ef | 1099 | dev = &client->dev; |
1da177e4 LT |
1100 | |
1101 | /* Now, we do the remaining detection. */ | |
1102 | ||
1103 | /* The w8378?d may be stuck in some other bank than bank 0. This may | |
1104 | make reading other information impossible. Specify a force=... or | |
1105 | force_*=... parameter, and the Winbond will be reset to the right | |
1106 | bank. */ | |
1107 | if (kind < 0) { | |
311ce2ef | 1108 | if (w83781d_read_value(client, W83781D_REG_CONFIG) & 0x80) { |
bd452e6f JD |
1109 | dev_dbg(&adapter->dev, "Detection of w83781d chip " |
1110 | "failed at step 3\n"); | |
1da177e4 LT |
1111 | err = -ENODEV; |
1112 | goto ERROR2; | |
1113 | } | |
311ce2ef JC |
1114 | val1 = w83781d_read_value(client, W83781D_REG_BANK); |
1115 | val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN); | |
1da177e4 LT |
1116 | /* Check for Winbond or Asus ID if in bank 0 */ |
1117 | if ((!(val1 & 0x07)) && | |
1118 | (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3)) | |
1119 | || ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) { | |
bd452e6f JD |
1120 | dev_dbg(&adapter->dev, "Detection of w83781d chip " |
1121 | "failed at step 4\n"); | |
1da177e4 LT |
1122 | err = -ENODEV; |
1123 | goto ERROR2; | |
1124 | } | |
1125 | /* If Winbond SMBus, check address at 0x48. | |
1126 | Asus doesn't support, except for as99127f rev.2 */ | |
7666c13c JD |
1127 | if ((!(val1 & 0x80) && (val2 == 0xa3)) || |
1128 | ((val1 & 0x80) && (val2 == 0x5c))) { | |
1da177e4 | 1129 | if (w83781d_read_value |
311ce2ef | 1130 | (client, W83781D_REG_I2C_ADDR) != address) { |
bd452e6f JD |
1131 | dev_dbg(&adapter->dev, "Detection of w83781d " |
1132 | "chip failed at step 5\n"); | |
1da177e4 LT |
1133 | err = -ENODEV; |
1134 | goto ERROR2; | |
1135 | } | |
1136 | } | |
1137 | } | |
1138 | ||
1139 | /* We have either had a force parameter, or we have already detected the | |
1140 | Winbond. Put it now into bank 0 and Vendor ID High Byte */ | |
311ce2ef JC |
1141 | w83781d_write_value(client, W83781D_REG_BANK, |
1142 | (w83781d_read_value(client, W83781D_REG_BANK) | |
1143 | & 0x78) | 0x80); | |
1da177e4 LT |
1144 | |
1145 | /* Determine the chip type. */ | |
1146 | if (kind <= 0) { | |
1147 | /* get vendor ID */ | |
311ce2ef | 1148 | val2 = w83781d_read_value(client, W83781D_REG_CHIPMAN); |
1da177e4 LT |
1149 | if (val2 == 0x5c) |
1150 | vendid = winbond; | |
1151 | else if (val2 == 0x12) | |
1152 | vendid = asus; | |
1153 | else { | |
bd452e6f JD |
1154 | dev_dbg(&adapter->dev, "w83781d chip vendor is " |
1155 | "neither Winbond nor Asus\n"); | |
1da177e4 LT |
1156 | err = -ENODEV; |
1157 | goto ERROR2; | |
1158 | } | |
1159 | ||
311ce2ef | 1160 | val1 = w83781d_read_value(client, W83781D_REG_WCHIPID); |
1da177e4 LT |
1161 | if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond) |
1162 | kind = w83781d; | |
1163 | else if (val1 == 0x30 && vendid == winbond) | |
1164 | kind = w83782d; | |
7666c13c | 1165 | else if (val1 == 0x40 && vendid == winbond && address == 0x2d) |
1da177e4 | 1166 | kind = w83783s; |
7c7a5304 | 1167 | else if (val1 == 0x21 && vendid == winbond) |
1da177e4 | 1168 | kind = w83627hf; |
7666c13c | 1169 | else if (val1 == 0x31 && address >= 0x28) |
1da177e4 | 1170 | kind = as99127f; |
1da177e4 LT |
1171 | else { |
1172 | if (kind == 0) | |
bd452e6f | 1173 | dev_warn(&adapter->dev, "Ignoring 'force' " |
1da177e4 | 1174 | "parameter for unknown chip at " |
bd452e6f | 1175 | "address 0x%02x\n", address); |
1da177e4 LT |
1176 | err = -EINVAL; |
1177 | goto ERROR2; | |
1178 | } | |
1179 | } | |
1180 | ||
1181 | if (kind == w83781d) { | |
1182 | client_name = "w83781d"; | |
1183 | } else if (kind == w83782d) { | |
1184 | client_name = "w83782d"; | |
1185 | } else if (kind == w83783s) { | |
1186 | client_name = "w83783s"; | |
1187 | } else if (kind == w83627hf) { | |
7c7a5304 | 1188 | client_name = "w83627hf"; |
1da177e4 LT |
1189 | } else if (kind == as99127f) { |
1190 | client_name = "as99127f"; | |
1da177e4 LT |
1191 | } |
1192 | ||
1193 | /* Fill in the remaining client fields and put into the global list */ | |
311ce2ef | 1194 | strlcpy(client->name, client_name, I2C_NAME_SIZE); |
1da177e4 LT |
1195 | data->type = kind; |
1196 | ||
1da177e4 | 1197 | /* Tell the I2C layer a new client has arrived */ |
311ce2ef | 1198 | if ((err = i2c_attach_client(client))) |
1da177e4 LT |
1199 | goto ERROR2; |
1200 | ||
1201 | /* attach secondary i2c lm75-like clients */ | |
7666c13c JD |
1202 | if ((err = w83781d_detect_subclients(adapter, address, |
1203 | kind, client))) | |
1204 | goto ERROR3; | |
1da177e4 LT |
1205 | |
1206 | /* Initialize the chip */ | |
7666c13c | 1207 | w83781d_init_device(dev); |
1da177e4 LT |
1208 | |
1209 | /* Register sysfs hooks */ | |
7666c13c JD |
1210 | err = w83781d_create_files(dev, kind, 0); |
1211 | if (err) | |
943b0830 | 1212 | goto ERROR4; |
943b0830 | 1213 | |
311ce2ef JC |
1214 | data->class_dev = hwmon_device_register(dev); |
1215 | if (IS_ERR(data->class_dev)) { | |
1216 | err = PTR_ERR(data->class_dev); | |
1217 | goto ERROR4; | |
1da177e4 LT |
1218 | } |
1219 | ||
1220 | return 0; | |
1221 | ||
943b0830 | 1222 | ERROR4: |
311ce2ef JC |
1223 | sysfs_remove_group(&dev->kobj, &w83781d_group); |
1224 | sysfs_remove_group(&dev->kobj, &w83781d_group_opt); | |
1225 | ||
943b0830 MH |
1226 | if (data->lm75[1]) { |
1227 | i2c_detach_client(data->lm75[1]); | |
1228 | kfree(data->lm75[1]); | |
1229 | } | |
1230 | if (data->lm75[0]) { | |
1231 | i2c_detach_client(data->lm75[0]); | |
1232 | kfree(data->lm75[0]); | |
1233 | } | |
1da177e4 | 1234 | ERROR3: |
311ce2ef | 1235 | i2c_detach_client(client); |
1da177e4 LT |
1236 | ERROR2: |
1237 | kfree(data); | |
1238 | ERROR1: | |
1da177e4 LT |
1239 | return err; |
1240 | } | |
1241 | ||
1242 | static int | |
1243 | w83781d_detach_client(struct i2c_client *client) | |
1244 | { | |
943b0830 | 1245 | struct w83781d_data *data = i2c_get_clientdata(client); |
1da177e4 LT |
1246 | int err; |
1247 | ||
943b0830 | 1248 | /* main client */ |
311ce2ef | 1249 | if (data) { |
943b0830 | 1250 | hwmon_device_unregister(data->class_dev); |
311ce2ef JC |
1251 | sysfs_remove_group(&client->dev.kobj, &w83781d_group); |
1252 | sysfs_remove_group(&client->dev.kobj, &w83781d_group_opt); | |
1253 | } | |
1da177e4 | 1254 | |
7bef5594 | 1255 | if ((err = i2c_detach_client(client))) |
1da177e4 | 1256 | return err; |
1da177e4 | 1257 | |
943b0830 MH |
1258 | /* main client */ |
1259 | if (data) | |
1260 | kfree(data); | |
1261 | ||
1262 | /* subclient */ | |
1263 | else | |
1da177e4 | 1264 | kfree(client); |
1da177e4 LT |
1265 | |
1266 | return 0; | |
1267 | } | |
1268 | ||
7666c13c JD |
1269 | static int __devinit |
1270 | w83781d_isa_probe(struct platform_device *pdev) | |
1271 | { | |
1272 | int err, reg; | |
1273 | struct w83781d_data *data; | |
1274 | struct resource *res; | |
1275 | const char *name; | |
1276 | ||
1277 | /* Reserve the ISA region */ | |
1278 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
1279 | if (!request_region(res->start, W83781D_EXTENT, "w83781d")) { | |
1280 | err = -EBUSY; | |
1281 | goto exit; | |
1282 | } | |
1283 | ||
1284 | if (!(data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL))) { | |
1285 | err = -ENOMEM; | |
1286 | goto exit_release_region; | |
1287 | } | |
1288 | mutex_init(&data->lock); | |
1289 | data->client.addr = res->start; | |
1290 | i2c_set_clientdata(&data->client, data); | |
1291 | platform_set_drvdata(pdev, data); | |
1292 | ||
1293 | reg = w83781d_read_value(&data->client, W83781D_REG_WCHIPID); | |
1294 | switch (reg) { | |
1295 | case 0x21: | |
1296 | data->type = w83627hf; | |
1297 | name = "w83627hf"; | |
1298 | break; | |
1299 | case 0x30: | |
1300 | data->type = w83782d; | |
1301 | name = "w83782d"; | |
1302 | break; | |
1303 | default: | |
1304 | data->type = w83781d; | |
1305 | name = "w83781d"; | |
1306 | } | |
1307 | strlcpy(data->client.name, name, I2C_NAME_SIZE); | |
1308 | ||
1309 | /* Initialize the W83781D chip */ | |
1310 | w83781d_init_device(&pdev->dev); | |
1311 | ||
1312 | /* Register sysfs hooks */ | |
1313 | err = w83781d_create_files(&pdev->dev, data->type, 1); | |
1314 | if (err) | |
1315 | goto exit_remove_files; | |
1316 | ||
1317 | data->class_dev = hwmon_device_register(&pdev->dev); | |
1318 | if (IS_ERR(data->class_dev)) { | |
1319 | err = PTR_ERR(data->class_dev); | |
1320 | goto exit_remove_files; | |
1321 | } | |
1322 | ||
1323 | return 0; | |
1324 | ||
1325 | exit_remove_files: | |
1326 | sysfs_remove_group(&pdev->dev.kobj, &w83781d_group); | |
1327 | sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt); | |
1328 | device_remove_file(&pdev->dev, &dev_attr_name); | |
1329 | kfree(data); | |
1330 | exit_release_region: | |
1331 | release_region(res->start, W83781D_EXTENT); | |
1332 | exit: | |
1333 | return err; | |
1334 | } | |
1335 | ||
1336 | static int __devexit | |
1337 | w83781d_isa_remove(struct platform_device *pdev) | |
1338 | { | |
1339 | struct w83781d_data *data = platform_get_drvdata(pdev); | |
1340 | ||
1341 | hwmon_device_unregister(data->class_dev); | |
1342 | sysfs_remove_group(&pdev->dev.kobj, &w83781d_group); | |
1343 | sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt); | |
1344 | device_remove_file(&pdev->dev, &dev_attr_name); | |
1345 | release_region(data->client.addr, W83781D_EXTENT); | |
1346 | kfree(data); | |
1347 | ||
1348 | return 0; | |
1349 | } | |
1350 | ||
1da177e4 LT |
1351 | /* The SMBus locks itself, usually, but nothing may access the Winbond between |
1352 | bank switches. ISA access must always be locked explicitly! | |
1353 | We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks, | |
1354 | would slow down the W83781D access and should not be necessary. | |
1355 | There are some ugly typecasts here, but the good news is - they should | |
1356 | nowhere else be necessary! */ | |
1357 | static int | |
1358 | w83781d_read_value(struct i2c_client *client, u16 reg) | |
1359 | { | |
1360 | struct w83781d_data *data = i2c_get_clientdata(client); | |
1361 | int res, word_sized, bank; | |
1362 | struct i2c_client *cl; | |
1363 | ||
9a61bf63 | 1364 | mutex_lock(&data->lock); |
7666c13c | 1365 | if (!client->driver) { /* ISA device */ |
1da177e4 LT |
1366 | word_sized = (((reg & 0xff00) == 0x100) |
1367 | || ((reg & 0xff00) == 0x200)) | |
1368 | && (((reg & 0x00ff) == 0x50) | |
1369 | || ((reg & 0x00ff) == 0x53) | |
1370 | || ((reg & 0x00ff) == 0x55)); | |
1371 | if (reg & 0xff00) { | |
1372 | outb_p(W83781D_REG_BANK, | |
1373 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1374 | outb_p(reg >> 8, | |
1375 | client->addr + W83781D_DATA_REG_OFFSET); | |
1376 | } | |
1377 | outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET); | |
1378 | res = inb_p(client->addr + W83781D_DATA_REG_OFFSET); | |
1379 | if (word_sized) { | |
1380 | outb_p((reg & 0xff) + 1, | |
1381 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1382 | res = | |
1383 | (res << 8) + inb_p(client->addr + | |
1384 | W83781D_DATA_REG_OFFSET); | |
1385 | } | |
1386 | if (reg & 0xff00) { | |
1387 | outb_p(W83781D_REG_BANK, | |
1388 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1389 | outb_p(0, client->addr + W83781D_DATA_REG_OFFSET); | |
1390 | } | |
1391 | } else { | |
1392 | bank = (reg >> 8) & 0x0f; | |
1393 | if (bank > 2) | |
1394 | /* switch banks */ | |
1395 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, | |
1396 | bank); | |
1397 | if (bank == 0 || bank > 2) { | |
1398 | res = i2c_smbus_read_byte_data(client, reg & 0xff); | |
1399 | } else { | |
1400 | /* switch to subclient */ | |
1401 | cl = data->lm75[bank - 1]; | |
1402 | /* convert from ISA to LM75 I2C addresses */ | |
1403 | switch (reg & 0xff) { | |
1404 | case 0x50: /* TEMP */ | |
1405 | res = swab16(i2c_smbus_read_word_data(cl, 0)); | |
1406 | break; | |
1407 | case 0x52: /* CONFIG */ | |
1408 | res = i2c_smbus_read_byte_data(cl, 1); | |
1409 | break; | |
1410 | case 0x53: /* HYST */ | |
1411 | res = swab16(i2c_smbus_read_word_data(cl, 2)); | |
1412 | break; | |
1413 | case 0x55: /* OVER */ | |
1414 | default: | |
1415 | res = swab16(i2c_smbus_read_word_data(cl, 3)); | |
1416 | break; | |
1417 | } | |
1418 | } | |
1419 | if (bank > 2) | |
1420 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0); | |
1421 | } | |
9a61bf63 | 1422 | mutex_unlock(&data->lock); |
1da177e4 LT |
1423 | return res; |
1424 | } | |
1425 | ||
1426 | static int | |
1427 | w83781d_write_value(struct i2c_client *client, u16 reg, u16 value) | |
1428 | { | |
1429 | struct w83781d_data *data = i2c_get_clientdata(client); | |
1430 | int word_sized, bank; | |
1431 | struct i2c_client *cl; | |
1432 | ||
9a61bf63 | 1433 | mutex_lock(&data->lock); |
7666c13c | 1434 | if (!client->driver) { /* ISA device */ |
1da177e4 LT |
1435 | word_sized = (((reg & 0xff00) == 0x100) |
1436 | || ((reg & 0xff00) == 0x200)) | |
1437 | && (((reg & 0x00ff) == 0x53) | |
1438 | || ((reg & 0x00ff) == 0x55)); | |
1439 | if (reg & 0xff00) { | |
1440 | outb_p(W83781D_REG_BANK, | |
1441 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1442 | outb_p(reg >> 8, | |
1443 | client->addr + W83781D_DATA_REG_OFFSET); | |
1444 | } | |
1445 | outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET); | |
1446 | if (word_sized) { | |
1447 | outb_p(value >> 8, | |
1448 | client->addr + W83781D_DATA_REG_OFFSET); | |
1449 | outb_p((reg & 0xff) + 1, | |
1450 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1451 | } | |
1452 | outb_p(value & 0xff, client->addr + W83781D_DATA_REG_OFFSET); | |
1453 | if (reg & 0xff00) { | |
1454 | outb_p(W83781D_REG_BANK, | |
1455 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1456 | outb_p(0, client->addr + W83781D_DATA_REG_OFFSET); | |
1457 | } | |
1458 | } else { | |
1459 | bank = (reg >> 8) & 0x0f; | |
1460 | if (bank > 2) | |
1461 | /* switch banks */ | |
1462 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, | |
1463 | bank); | |
1464 | if (bank == 0 || bank > 2) { | |
1465 | i2c_smbus_write_byte_data(client, reg & 0xff, | |
1466 | value & 0xff); | |
1467 | } else { | |
1468 | /* switch to subclient */ | |
1469 | cl = data->lm75[bank - 1]; | |
1470 | /* convert from ISA to LM75 I2C addresses */ | |
1471 | switch (reg & 0xff) { | |
1472 | case 0x52: /* CONFIG */ | |
1473 | i2c_smbus_write_byte_data(cl, 1, value & 0xff); | |
1474 | break; | |
1475 | case 0x53: /* HYST */ | |
1476 | i2c_smbus_write_word_data(cl, 2, swab16(value)); | |
1477 | break; | |
1478 | case 0x55: /* OVER */ | |
1479 | i2c_smbus_write_word_data(cl, 3, swab16(value)); | |
1480 | break; | |
1481 | } | |
1482 | } | |
1483 | if (bank > 2) | |
1484 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0); | |
1485 | } | |
9a61bf63 | 1486 | mutex_unlock(&data->lock); |
1da177e4 LT |
1487 | return 0; |
1488 | } | |
1489 | ||
1da177e4 | 1490 | static void |
7666c13c | 1491 | w83781d_init_device(struct device *dev) |
1da177e4 | 1492 | { |
7666c13c JD |
1493 | struct w83781d_data *data = dev_get_drvdata(dev); |
1494 | struct i2c_client *client = &data->client; | |
1da177e4 LT |
1495 | int i, p; |
1496 | int type = data->type; | |
1497 | u8 tmp; | |
1498 | ||
fabddcd4 | 1499 | if (reset && type != as99127f) { /* this resets registers we don't have |
1da177e4 | 1500 | documentation for on the as99127f */ |
fabddcd4 JD |
1501 | /* Resetting the chip has been the default for a long time, |
1502 | but it causes the BIOS initializations (fan clock dividers, | |
1503 | thermal sensor types...) to be lost, so it is now optional. | |
1504 | It might even go away if nobody reports it as being useful, | |
1505 | as I see very little reason why this would be needed at | |
1506 | all. */ | |
7666c13c | 1507 | dev_info(dev, "If reset=1 solved a problem you were " |
fabddcd4 JD |
1508 | "having, please report!\n"); |
1509 | ||
1da177e4 LT |
1510 | /* save these registers */ |
1511 | i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); | |
1512 | p = w83781d_read_value(client, W83781D_REG_PWMCLK12); | |
1513 | /* Reset all except Watchdog values and last conversion values | |
1514 | This sets fan-divs to 2, among others */ | |
1515 | w83781d_write_value(client, W83781D_REG_CONFIG, 0x80); | |
1516 | /* Restore the registers and disable power-on abnormal beep. | |
1517 | This saves FAN 1/2/3 input/output values set by BIOS. */ | |
1518 | w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80); | |
1519 | w83781d_write_value(client, W83781D_REG_PWMCLK12, p); | |
1520 | /* Disable master beep-enable (reset turns it on). | |
1521 | Individual beep_mask should be reset to off but for some reason | |
1522 | disabling this bit helps some people not get beeped */ | |
1523 | w83781d_write_value(client, W83781D_REG_BEEP_INTS2, 0); | |
1524 | } | |
1525 | ||
fabddcd4 JD |
1526 | /* Disable power-on abnormal beep, as advised by the datasheet. |
1527 | Already done if reset=1. */ | |
1528 | if (init && !reset && type != as99127f) { | |
1529 | i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); | |
1530 | w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80); | |
1531 | } | |
1532 | ||
303760b4 | 1533 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1534 | |
1535 | if ((type != w83781d) && (type != as99127f)) { | |
1536 | tmp = w83781d_read_value(client, W83781D_REG_SCFG1); | |
1537 | for (i = 1; i <= 3; i++) { | |
1538 | if (!(tmp & BIT_SCFG1[i - 1])) { | |
1539 | data->sens[i - 1] = W83781D_DEFAULT_BETA; | |
1540 | } else { | |
1541 | if (w83781d_read_value | |
1542 | (client, | |
1543 | W83781D_REG_SCFG2) & BIT_SCFG2[i - 1]) | |
1544 | data->sens[i - 1] = 1; | |
1545 | else | |
1546 | data->sens[i - 1] = 2; | |
1547 | } | |
7c7a5304 | 1548 | if (type == w83783s && i == 2) |
1da177e4 LT |
1549 | break; |
1550 | } | |
1551 | } | |
1552 | ||
1553 | if (init && type != as99127f) { | |
1554 | /* Enable temp2 */ | |
1555 | tmp = w83781d_read_value(client, W83781D_REG_TEMP2_CONFIG); | |
1556 | if (tmp & 0x01) { | |
7666c13c | 1557 | dev_warn(dev, "Enabling temp2, readings " |
1da177e4 LT |
1558 | "might not make sense\n"); |
1559 | w83781d_write_value(client, W83781D_REG_TEMP2_CONFIG, | |
1560 | tmp & 0xfe); | |
1561 | } | |
1562 | ||
1563 | /* Enable temp3 */ | |
7c7a5304 | 1564 | if (type != w83783s) { |
1da177e4 LT |
1565 | tmp = w83781d_read_value(client, |
1566 | W83781D_REG_TEMP3_CONFIG); | |
1567 | if (tmp & 0x01) { | |
7666c13c | 1568 | dev_warn(dev, "Enabling temp3, " |
1da177e4 LT |
1569 | "readings might not make sense\n"); |
1570 | w83781d_write_value(client, | |
1571 | W83781D_REG_TEMP3_CONFIG, tmp & 0xfe); | |
1572 | } | |
1573 | } | |
1da177e4 LT |
1574 | } |
1575 | ||
1576 | /* Start monitoring */ | |
1577 | w83781d_write_value(client, W83781D_REG_CONFIG, | |
1578 | (w83781d_read_value(client, | |
1579 | W83781D_REG_CONFIG) & 0xf7) | |
1580 | | 0x01); | |
7666c13c JD |
1581 | |
1582 | /* A few vars need to be filled upon startup */ | |
1583 | for (i = 1; i <= 3; i++) { | |
1584 | data->fan_min[i - 1] = w83781d_read_value(client, | |
1585 | W83781D_REG_FAN_MIN(i)); | |
1586 | } | |
1587 | if (type != w83781d && type != as99127f) | |
1588 | for (i = 0; i < 4; i++) | |
1589 | data->pwmenable[i] = 1; | |
1590 | ||
1591 | mutex_init(&data->update_lock); | |
1da177e4 LT |
1592 | } |
1593 | ||
1594 | static struct w83781d_data *w83781d_update_device(struct device *dev) | |
1595 | { | |
7666c13c JD |
1596 | struct w83781d_data *data = dev_get_drvdata(dev); |
1597 | struct i2c_client *client = &data->client; | |
1da177e4 LT |
1598 | int i; |
1599 | ||
9a61bf63 | 1600 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1601 | |
1602 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
1603 | || !data->valid) { | |
1604 | dev_dbg(dev, "Starting device update\n"); | |
1605 | ||
1606 | for (i = 0; i <= 8; i++) { | |
7c7a5304 | 1607 | if (data->type == w83783s && i == 1) |
1da177e4 LT |
1608 | continue; /* 783S has no in1 */ |
1609 | data->in[i] = | |
1610 | w83781d_read_value(client, W83781D_REG_IN(i)); | |
1611 | data->in_min[i] = | |
1612 | w83781d_read_value(client, W83781D_REG_IN_MIN(i)); | |
1613 | data->in_max[i] = | |
1614 | w83781d_read_value(client, W83781D_REG_IN_MAX(i)); | |
7c7a5304 | 1615 | if ((data->type != w83782d) |
1da177e4 LT |
1616 | && (data->type != w83627hf) && (i == 6)) |
1617 | break; | |
1618 | } | |
1619 | for (i = 1; i <= 3; i++) { | |
1620 | data->fan[i - 1] = | |
1621 | w83781d_read_value(client, W83781D_REG_FAN(i)); | |
1622 | data->fan_min[i - 1] = | |
1623 | w83781d_read_value(client, W83781D_REG_FAN_MIN(i)); | |
1624 | } | |
1625 | if (data->type != w83781d && data->type != as99127f) { | |
1626 | for (i = 1; i <= 4; i++) { | |
1627 | data->pwm[i - 1] = | |
1628 | w83781d_read_value(client, | |
1629 | W83781D_REG_PWM(i)); | |
7666c13c | 1630 | if ((data->type != w83782d || !client->driver) |
1da177e4 LT |
1631 | && i == 2) |
1632 | break; | |
1633 | } | |
1634 | /* Only PWM2 can be disabled */ | |
1635 | data->pwmenable[1] = (w83781d_read_value(client, | |
1636 | W83781D_REG_PWMCLK12) & 0x08) >> 3; | |
1637 | } | |
1638 | ||
1639 | data->temp = w83781d_read_value(client, W83781D_REG_TEMP(1)); | |
1640 | data->temp_max = | |
1641 | w83781d_read_value(client, W83781D_REG_TEMP_OVER(1)); | |
1642 | data->temp_max_hyst = | |
1643 | w83781d_read_value(client, W83781D_REG_TEMP_HYST(1)); | |
1644 | data->temp_add[0] = | |
1645 | w83781d_read_value(client, W83781D_REG_TEMP(2)); | |
1646 | data->temp_max_add[0] = | |
1647 | w83781d_read_value(client, W83781D_REG_TEMP_OVER(2)); | |
1648 | data->temp_max_hyst_add[0] = | |
1649 | w83781d_read_value(client, W83781D_REG_TEMP_HYST(2)); | |
7c7a5304 | 1650 | if (data->type != w83783s) { |
1da177e4 LT |
1651 | data->temp_add[1] = |
1652 | w83781d_read_value(client, W83781D_REG_TEMP(3)); | |
1653 | data->temp_max_add[1] = | |
1654 | w83781d_read_value(client, | |
1655 | W83781D_REG_TEMP_OVER(3)); | |
1656 | data->temp_max_hyst_add[1] = | |
1657 | w83781d_read_value(client, | |
1658 | W83781D_REG_TEMP_HYST(3)); | |
1659 | } | |
1660 | i = w83781d_read_value(client, W83781D_REG_VID_FANDIV); | |
7c7a5304 JD |
1661 | data->vid = i & 0x0f; |
1662 | data->vid |= (w83781d_read_value(client, | |
1663 | W83781D_REG_CHIPID) & 0x01) << 4; | |
1da177e4 LT |
1664 | data->fan_div[0] = (i >> 4) & 0x03; |
1665 | data->fan_div[1] = (i >> 6) & 0x03; | |
7c7a5304 JD |
1666 | data->fan_div[2] = (w83781d_read_value(client, |
1667 | W83781D_REG_PIN) >> 6) & 0x03; | |
1da177e4 LT |
1668 | if ((data->type != w83781d) && (data->type != as99127f)) { |
1669 | i = w83781d_read_value(client, W83781D_REG_VBAT); | |
1670 | data->fan_div[0] |= (i >> 3) & 0x04; | |
1671 | data->fan_div[1] |= (i >> 4) & 0x04; | |
7c7a5304 | 1672 | data->fan_div[2] |= (i >> 5) & 0x04; |
1da177e4 | 1673 | } |
1da177e4 | 1674 | if ((data->type == w83782d) || (data->type == w83627hf)) { |
c7f5d7ed JD |
1675 | data->alarms = w83781d_read_value(client, |
1676 | W83782D_REG_ALARM1) | |
1677 | | (w83781d_read_value(client, | |
1678 | W83782D_REG_ALARM2) << 8) | |
1679 | | (w83781d_read_value(client, | |
1680 | W83782D_REG_ALARM3) << 16); | |
1681 | } else if (data->type == w83783s) { | |
1682 | data->alarms = w83781d_read_value(client, | |
1683 | W83782D_REG_ALARM1) | |
1684 | | (w83781d_read_value(client, | |
1685 | W83782D_REG_ALARM2) << 8); | |
1686 | } else { | |
1687 | /* No real-time status registers, fall back to | |
1688 | interrupt status registers */ | |
1689 | data->alarms = w83781d_read_value(client, | |
1690 | W83781D_REG_ALARM1) | |
1691 | | (w83781d_read_value(client, | |
1692 | W83781D_REG_ALARM2) << 8); | |
1da177e4 LT |
1693 | } |
1694 | i = w83781d_read_value(client, W83781D_REG_BEEP_INTS2); | |
1695 | data->beep_enable = i >> 7; | |
1696 | data->beep_mask = ((i & 0x7f) << 8) + | |
1697 | w83781d_read_value(client, W83781D_REG_BEEP_INTS1); | |
1698 | if ((data->type != w83781d) && (data->type != as99127f)) { | |
1699 | data->beep_mask |= | |
1700 | w83781d_read_value(client, | |
1701 | W83781D_REG_BEEP_INTS3) << 16; | |
1702 | } | |
1703 | data->last_updated = jiffies; | |
1704 | data->valid = 1; | |
1705 | } | |
1706 | ||
9a61bf63 | 1707 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1708 | |
1709 | return data; | |
1710 | } | |
1711 | ||
7666c13c JD |
1712 | /* return 1 if a supported chip is found, 0 otherwise */ |
1713 | static int __init | |
1714 | w83781d_isa_found(unsigned short address) | |
1715 | { | |
1716 | int val, save, found = 0; | |
1717 | ||
1718 | if (!request_region(address, W83781D_EXTENT, "w83781d")) | |
1719 | return 0; | |
1720 | ||
1721 | #define REALLY_SLOW_IO | |
1722 | /* We need the timeouts for at least some W83781D-like | |
1723 | chips. But only if we read 'undefined' registers. */ | |
1724 | val = inb_p(address + 1); | |
1725 | if (inb_p(address + 2) != val | |
1726 | || inb_p(address + 3) != val | |
1727 | || inb_p(address + 7) != val) { | |
1728 | pr_debug("w83781d: Detection failed at step 1\n"); | |
1729 | goto release; | |
1730 | } | |
1731 | #undef REALLY_SLOW_IO | |
1732 | ||
1733 | /* We should be able to change the 7 LSB of the address port. The | |
1734 | MSB (busy flag) should be clear initially, set after the write. */ | |
1735 | save = inb_p(address + W83781D_ADDR_REG_OFFSET); | |
1736 | if (save & 0x80) { | |
1737 | pr_debug("w83781d: Detection failed at step 2\n"); | |
1738 | goto release; | |
1739 | } | |
1740 | val = ~save & 0x7f; | |
1741 | outb_p(val, address + W83781D_ADDR_REG_OFFSET); | |
1742 | if (inb_p(address + W83781D_ADDR_REG_OFFSET) != (val | 0x80)) { | |
1743 | outb_p(save, address + W83781D_ADDR_REG_OFFSET); | |
1744 | pr_debug("w83781d: Detection failed at step 3\n"); | |
1745 | goto release; | |
1746 | } | |
1747 | ||
1748 | /* We found a device, now see if it could be a W83781D */ | |
1749 | outb_p(W83781D_REG_CONFIG, address + W83781D_ADDR_REG_OFFSET); | |
1750 | val = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1751 | if (val & 0x80) { | |
1752 | pr_debug("w83781d: Detection failed at step 4\n"); | |
1753 | goto release; | |
1754 | } | |
1755 | outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET); | |
1756 | save = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1757 | outb_p(W83781D_REG_CHIPMAN, address + W83781D_ADDR_REG_OFFSET); | |
1758 | val = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1759 | if ((!(save & 0x80) && (val != 0xa3)) | |
1760 | || ((save & 0x80) && (val != 0x5c))) { | |
1761 | pr_debug("w83781d: Detection failed at step 5\n"); | |
1762 | goto release; | |
1763 | } | |
1764 | outb_p(W83781D_REG_I2C_ADDR, address + W83781D_ADDR_REG_OFFSET); | |
1765 | val = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1766 | if (val < 0x03 || val > 0x77) { /* Not a valid I2C address */ | |
1767 | pr_debug("w83781d: Detection failed at step 6\n"); | |
1768 | goto release; | |
1769 | } | |
1770 | ||
1771 | /* The busy flag should be clear again */ | |
1772 | if (inb_p(address + W83781D_ADDR_REG_OFFSET) & 0x80) { | |
1773 | pr_debug("w83781d: Detection failed at step 7\n"); | |
1774 | goto release; | |
1775 | } | |
1776 | ||
1777 | /* Determine the chip type */ | |
1778 | outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET); | |
1779 | save = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1780 | outb_p(save & 0xf8, address + W83781D_DATA_REG_OFFSET); | |
1781 | outb_p(W83781D_REG_WCHIPID, address + W83781D_ADDR_REG_OFFSET); | |
1782 | val = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1783 | if ((val & 0xfe) == 0x10 /* W83781D */ | |
1784 | || val == 0x30 /* W83782D */ | |
1785 | || val == 0x21) /* W83627HF */ | |
1786 | found = 1; | |
1787 | ||
1788 | if (found) | |
1789 | pr_info("w83781d: Found a %s chip at %#x\n", | |
1790 | val == 0x21 ? "W83627HF" : | |
1791 | val == 0x30 ? "W83782D" : "W83781D", (int)address); | |
1792 | ||
1793 | release: | |
1794 | release_region(address, W83781D_EXTENT); | |
1795 | return found; | |
1796 | } | |
1797 | ||
1798 | static int __init | |
1799 | w83781d_isa_device_add(unsigned short address) | |
1800 | { | |
1801 | struct resource res = { | |
1802 | .start = address, | |
1803 | .end = address + W83781D_EXTENT, | |
1804 | .name = "w83781d", | |
1805 | .flags = IORESOURCE_IO, | |
1806 | }; | |
1807 | int err; | |
1808 | ||
1809 | pdev = platform_device_alloc("w83781d", address); | |
1810 | if (!pdev) { | |
1811 | err = -ENOMEM; | |
1812 | printk(KERN_ERR "w83781d: Device allocation failed\n"); | |
1813 | goto exit; | |
1814 | } | |
1815 | ||
1816 | err = platform_device_add_resources(pdev, &res, 1); | |
1817 | if (err) { | |
1818 | printk(KERN_ERR "w83781d: Device resource addition failed " | |
1819 | "(%d)\n", err); | |
1820 | goto exit_device_put; | |
1821 | } | |
1822 | ||
1823 | err = platform_device_add(pdev); | |
1824 | if (err) { | |
1825 | printk(KERN_ERR "w83781d: Device addition failed (%d)\n", | |
1826 | err); | |
1827 | goto exit_device_put; | |
1828 | } | |
1829 | ||
1830 | return 0; | |
1831 | ||
1832 | exit_device_put: | |
1833 | platform_device_put(pdev); | |
1834 | exit: | |
1835 | pdev = NULL; | |
1836 | return err; | |
1837 | } | |
1838 | ||
1da177e4 LT |
1839 | static int __init |
1840 | sensors_w83781d_init(void) | |
1841 | { | |
fde09509 JD |
1842 | int res; |
1843 | ||
1844 | res = i2c_add_driver(&w83781d_driver); | |
1845 | if (res) | |
7666c13c JD |
1846 | goto exit; |
1847 | ||
1848 | if (w83781d_isa_found(isa_address)) { | |
1849 | res = platform_driver_register(&w83781d_isa_driver); | |
1850 | if (res) | |
1851 | goto exit_unreg_i2c_driver; | |
fde09509 | 1852 | |
7666c13c JD |
1853 | /* Sets global pdev as a side effect */ |
1854 | res = w83781d_isa_device_add(isa_address); | |
1855 | if (res) | |
1856 | goto exit_unreg_isa_driver; | |
1857 | } | |
fde09509 JD |
1858 | |
1859 | return 0; | |
7666c13c JD |
1860 | |
1861 | exit_unreg_isa_driver: | |
1862 | platform_driver_unregister(&w83781d_isa_driver); | |
1863 | exit_unreg_i2c_driver: | |
1864 | i2c_del_driver(&w83781d_driver); | |
1865 | exit: | |
1866 | return res; | |
1da177e4 LT |
1867 | } |
1868 | ||
1869 | static void __exit | |
1870 | sensors_w83781d_exit(void) | |
1871 | { | |
7666c13c JD |
1872 | if (pdev) { |
1873 | platform_device_unregister(pdev); | |
1874 | platform_driver_unregister(&w83781d_isa_driver); | |
1875 | } | |
1da177e4 LT |
1876 | i2c_del_driver(&w83781d_driver); |
1877 | } | |
1878 | ||
1879 | MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " | |
1880 | "Philip Edelbrock <phil@netroedge.com>, " | |
1881 | "and Mark Studebaker <mdsxyz123@yahoo.com>"); | |
1882 | MODULE_DESCRIPTION("W83781D driver"); | |
1883 | MODULE_LICENSE("GPL"); | |
1884 | ||
1885 | module_init(sensors_w83781d_init); | |
1886 | module_exit(sensors_w83781d_exit); |