Commit | Line | Data |
---|---|---|
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>, | |
5 | Philip Edelbrock <phil@netroedge.com>, | |
6 | and Mark Studebaker <mdsxyz123@yahoo.com> | |
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 | Supports following chips: | |
25 | ||
26 | Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA | |
27 | as99127f 7 3 0 3 0x31 0x12c3 yes no | |
28 | as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no | |
29 | w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes | |
30 | w83627hf 9 3 2 3 0x21 0x5ca3 yes yes(LPC) | |
1da177e4 LT |
31 | w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes |
32 | w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no | |
1da177e4 LT |
33 | |
34 | */ | |
35 | ||
1da177e4 LT |
36 | #include <linux/module.h> |
37 | #include <linux/init.h> | |
38 | #include <linux/slab.h> | |
39 | #include <linux/jiffies.h> | |
40 | #include <linux/i2c.h> | |
fde09509 | 41 | #include <linux/i2c-isa.h> |
943b0830 | 42 | #include <linux/hwmon.h> |
303760b4 | 43 | #include <linux/hwmon-vid.h> |
943b0830 | 44 | #include <linux/err.h> |
9a61bf63 | 45 | #include <linux/mutex.h> |
1da177e4 LT |
46 | #include <asm/io.h> |
47 | #include "lm75.h" | |
48 | ||
49 | /* Addresses to scan */ | |
50 | static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, | |
51 | 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, | |
52 | 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; | |
2d8672c5 | 53 | static unsigned short isa_address = 0x290; |
1da177e4 LT |
54 | |
55 | /* Insmod parameters */ | |
f4b50261 | 56 | I2C_CLIENT_INSMOD_5(w83781d, w83782d, w83783s, w83627hf, as99127f); |
1da177e4 LT |
57 | I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " |
58 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); | |
59 | ||
fabddcd4 JD |
60 | static int reset; |
61 | module_param(reset, bool, 0); | |
62 | MODULE_PARM_DESC(reset, "Set to one to reset chip on load"); | |
63 | ||
1da177e4 LT |
64 | static int init = 1; |
65 | module_param(init, bool, 0); | |
66 | MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization"); | |
67 | ||
68 | /* Constants specified below */ | |
69 | ||
70 | /* Length of ISA address segment */ | |
71 | #define W83781D_EXTENT 8 | |
72 | ||
73 | /* Where are the ISA address/data registers relative to the base address */ | |
74 | #define W83781D_ADDR_REG_OFFSET 5 | |
75 | #define W83781D_DATA_REG_OFFSET 6 | |
76 | ||
77 | /* The W83781D registers */ | |
78 | /* The W83782D registers for nr=7,8 are in bank 5 */ | |
79 | #define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \ | |
80 | (0x554 + (((nr) - 7) * 2))) | |
81 | #define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \ | |
82 | (0x555 + (((nr) - 7) * 2))) | |
83 | #define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \ | |
84 | (0x550 + (nr) - 7)) | |
85 | ||
86 | #define W83781D_REG_FAN_MIN(nr) (0x3a + (nr)) | |
87 | #define W83781D_REG_FAN(nr) (0x27 + (nr)) | |
88 | ||
89 | #define W83781D_REG_BANK 0x4E | |
90 | #define W83781D_REG_TEMP2_CONFIG 0x152 | |
91 | #define W83781D_REG_TEMP3_CONFIG 0x252 | |
92 | #define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \ | |
93 | ((nr == 2) ? (0x0150) : \ | |
94 | (0x27))) | |
95 | #define W83781D_REG_TEMP_HYST(nr) ((nr == 3) ? (0x253) : \ | |
96 | ((nr == 2) ? (0x153) : \ | |
97 | (0x3A))) | |
98 | #define W83781D_REG_TEMP_OVER(nr) ((nr == 3) ? (0x255) : \ | |
99 | ((nr == 2) ? (0x155) : \ | |
100 | (0x39))) | |
101 | ||
102 | #define W83781D_REG_CONFIG 0x40 | |
c7f5d7ed JD |
103 | |
104 | /* Interrupt status (W83781D, AS99127F) */ | |
1da177e4 LT |
105 | #define W83781D_REG_ALARM1 0x41 |
106 | #define W83781D_REG_ALARM2 0x42 | |
1da177e4 | 107 | |
c7f5d7ed JD |
108 | /* Real-time status (W83782D, W83783S, W83627HF) */ |
109 | #define W83782D_REG_ALARM1 0x459 | |
110 | #define W83782D_REG_ALARM2 0x45A | |
111 | #define W83782D_REG_ALARM3 0x45B | |
112 | ||
1da177e4 LT |
113 | #define W83781D_REG_BEEP_CONFIG 0x4D |
114 | #define W83781D_REG_BEEP_INTS1 0x56 | |
115 | #define W83781D_REG_BEEP_INTS2 0x57 | |
116 | #define W83781D_REG_BEEP_INTS3 0x453 /* not on W83781D */ | |
117 | ||
118 | #define W83781D_REG_VID_FANDIV 0x47 | |
119 | ||
120 | #define W83781D_REG_CHIPID 0x49 | |
121 | #define W83781D_REG_WCHIPID 0x58 | |
122 | #define W83781D_REG_CHIPMAN 0x4F | |
123 | #define W83781D_REG_PIN 0x4B | |
124 | ||
125 | /* 782D/783S only */ | |
126 | #define W83781D_REG_VBAT 0x5D | |
127 | ||
128 | /* PWM 782D (1-4) and 783S (1-2) only */ | |
129 | #define W83781D_REG_PWM1 0x5B /* 782d and 783s/627hf datasheets disagree */ | |
130 | /* on which is which; */ | |
131 | #define W83781D_REG_PWM2 0x5A /* We follow the 782d convention here, */ | |
132 | /* However 782d is probably wrong. */ | |
133 | #define W83781D_REG_PWM3 0x5E | |
134 | #define W83781D_REG_PWM4 0x5F | |
135 | #define W83781D_REG_PWMCLK12 0x5C | |
136 | #define W83781D_REG_PWMCLK34 0x45C | |
137 | static const u8 regpwm[] = { W83781D_REG_PWM1, W83781D_REG_PWM2, | |
138 | W83781D_REG_PWM3, W83781D_REG_PWM4 | |
139 | }; | |
140 | ||
141 | #define W83781D_REG_PWM(nr) (regpwm[(nr) - 1]) | |
142 | ||
143 | #define W83781D_REG_I2C_ADDR 0x48 | |
144 | #define W83781D_REG_I2C_SUBADDR 0x4A | |
145 | ||
146 | /* The following are undocumented in the data sheets however we | |
147 | received the information in an email from Winbond tech support */ | |
148 | /* Sensor selection - not on 781d */ | |
149 | #define W83781D_REG_SCFG1 0x5D | |
150 | static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 }; | |
151 | ||
152 | #define W83781D_REG_SCFG2 0x59 | |
153 | static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 }; | |
154 | ||
155 | #define W83781D_DEFAULT_BETA 3435 | |
156 | ||
157 | /* RT Table registers */ | |
158 | #define W83781D_REG_RT_IDX 0x50 | |
159 | #define W83781D_REG_RT_VAL 0x51 | |
160 | ||
161 | /* Conversions. Rounding and limit checking is only done on the TO_REG | |
162 | variants. Note that you should be a bit careful with which arguments | |
163 | these macros are called: arguments may be evaluated more than once. | |
164 | Fixing this is just not worth it. */ | |
165 | #define IN_TO_REG(val) (SENSORS_LIMIT((((val) * 10 + 8)/16),0,255)) | |
166 | #define IN_FROM_REG(val) (((val) * 16) / 10) | |
167 | ||
168 | static inline u8 | |
169 | FAN_TO_REG(long rpm, int div) | |
170 | { | |
171 | if (rpm == 0) | |
172 | return 255; | |
173 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
174 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
175 | } | |
176 | ||
177 | #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \ | |
178 | ((val) == 255 ? 0 : \ | |
179 | 1350000 / ((val) * (div)))) | |
180 | ||
181 | #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ | |
182 | : (val)) / 1000, 0, 0xff)) | |
183 | #define TEMP_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) | |
184 | ||
1da177e4 LT |
185 | #define PWM_FROM_REG(val) (val) |
186 | #define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255)) | |
187 | #define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \ | |
188 | (val) ^ 0x7fff : (val)) | |
189 | #define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \ | |
190 | (~(val)) & 0x7fff : (val) & 0xffffff) | |
191 | ||
192 | #define BEEP_ENABLE_TO_REG(val) ((val) ? 1 : 0) | |
193 | #define BEEP_ENABLE_FROM_REG(val) ((val) ? 1 : 0) | |
194 | ||
195 | #define DIV_FROM_REG(val) (1 << (val)) | |
196 | ||
197 | static inline u8 | |
198 | DIV_TO_REG(long val, enum chips type) | |
199 | { | |
200 | int i; | |
201 | val = SENSORS_LIMIT(val, 1, | |
202 | ((type == w83781d | |
203 | || type == as99127f) ? 8 : 128)) >> 1; | |
abc01922 | 204 | for (i = 0; i < 7; i++) { |
1da177e4 LT |
205 | if (val == 0) |
206 | break; | |
207 | val >>= 1; | |
208 | } | |
209 | return ((u8) i); | |
210 | } | |
211 | ||
212 | /* There are some complications in a module like this. First off, W83781D chips | |
213 | may be both present on the SMBus and the ISA bus, and we have to handle | |
214 | those cases separately at some places. Second, there might be several | |
215 | W83781D chips available (well, actually, that is probably never done; but | |
216 | it is a clean illustration of how to handle a case like that). Finally, | |
217 | a specific chip may be attached to *both* ISA and SMBus, and we would | |
218 | not like to detect it double. Fortunately, in the case of the W83781D at | |
219 | least, a register tells us what SMBus address we are on, so that helps | |
220 | a bit - except if there could be more than one SMBus. Groan. No solution | |
221 | for this yet. */ | |
222 | ||
223 | /* This module may seem overly long and complicated. In fact, it is not so | |
224 | bad. Quite a lot of bookkeeping is done. A real driver can often cut | |
225 | some corners. */ | |
226 | ||
227 | /* For each registered W83781D, we need to keep some data in memory. That | |
228 | data is pointed to by w83781d_list[NR]->data. The structure itself is | |
229 | dynamically allocated, at the same time when a new w83781d client is | |
230 | allocated. */ | |
231 | struct w83781d_data { | |
232 | struct i2c_client client; | |
943b0830 | 233 | struct class_device *class_dev; |
9a61bf63 | 234 | struct mutex lock; |
1da177e4 LT |
235 | enum chips type; |
236 | ||
9a61bf63 | 237 | struct mutex update_lock; |
1da177e4 LT |
238 | char valid; /* !=0 if following fields are valid */ |
239 | unsigned long last_updated; /* In jiffies */ | |
240 | ||
241 | struct i2c_client *lm75[2]; /* for secondary I2C addresses */ | |
242 | /* array of 2 pointers to subclients */ | |
243 | ||
244 | u8 in[9]; /* Register value - 8 & 9 for 782D only */ | |
245 | u8 in_max[9]; /* Register value - 8 & 9 for 782D only */ | |
246 | u8 in_min[9]; /* Register value - 8 & 9 for 782D only */ | |
247 | u8 fan[3]; /* Register value */ | |
248 | u8 fan_min[3]; /* Register value */ | |
249 | u8 temp; | |
250 | u8 temp_max; /* Register value */ | |
251 | u8 temp_max_hyst; /* Register value */ | |
252 | u16 temp_add[2]; /* Register value */ | |
253 | u16 temp_max_add[2]; /* Register value */ | |
254 | u16 temp_max_hyst_add[2]; /* Register value */ | |
255 | u8 fan_div[3]; /* Register encoding, shifted right */ | |
256 | u8 vid; /* Register encoding, combined */ | |
257 | u32 alarms; /* Register encoding, combined */ | |
258 | u32 beep_mask; /* Register encoding, combined */ | |
259 | u8 beep_enable; /* Boolean */ | |
260 | u8 pwm[4]; /* Register value */ | |
261 | u8 pwmenable[4]; /* Boolean */ | |
262 | u16 sens[3]; /* 782D/783S only. | |
263 | 1 = pentium diode; 2 = 3904 diode; | |
264 | 3000-5000 = thermistor beta. | |
265 | Default = 3435. | |
266 | Other Betas unimplemented */ | |
267 | u8 vrm; | |
268 | }; | |
269 | ||
270 | static int w83781d_attach_adapter(struct i2c_adapter *adapter); | |
2d8672c5 | 271 | static int w83781d_isa_attach_adapter(struct i2c_adapter *adapter); |
1da177e4 LT |
272 | static int w83781d_detect(struct i2c_adapter *adapter, int address, int kind); |
273 | static int w83781d_detach_client(struct i2c_client *client); | |
274 | ||
f6c27fc1 DJ |
275 | static int w83781d_read_value(struct i2c_client *client, u16 reg); |
276 | static int w83781d_write_value(struct i2c_client *client, u16 reg, u16 value); | |
1da177e4 LT |
277 | static struct w83781d_data *w83781d_update_device(struct device *dev); |
278 | static void w83781d_init_client(struct i2c_client *client); | |
279 | ||
280 | static struct i2c_driver w83781d_driver = { | |
cdaf7934 | 281 | .driver = { |
cdaf7934 LR |
282 | .name = "w83781d", |
283 | }, | |
1da177e4 | 284 | .id = I2C_DRIVERID_W83781D, |
1da177e4 LT |
285 | .attach_adapter = w83781d_attach_adapter, |
286 | .detach_client = w83781d_detach_client, | |
287 | }; | |
288 | ||
fde09509 | 289 | static struct i2c_driver w83781d_isa_driver = { |
cdaf7934 | 290 | .driver = { |
87218842 | 291 | .owner = THIS_MODULE, |
cdaf7934 LR |
292 | .name = "w83781d-isa", |
293 | }, | |
2d8672c5 | 294 | .attach_adapter = w83781d_isa_attach_adapter, |
fde09509 JD |
295 | .detach_client = w83781d_detach_client, |
296 | }; | |
297 | ||
298 | ||
1da177e4 LT |
299 | /* following are the sysfs callback functions */ |
300 | #define show_in_reg(reg) \ | |
301 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
302 | { \ | |
303 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
304 | return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr] * 10)); \ | |
305 | } | |
306 | show_in_reg(in); | |
307 | show_in_reg(in_min); | |
308 | show_in_reg(in_max); | |
309 | ||
310 | #define store_in_reg(REG, reg) \ | |
311 | static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \ | |
312 | { \ | |
313 | struct i2c_client *client = to_i2c_client(dev); \ | |
314 | struct w83781d_data *data = i2c_get_clientdata(client); \ | |
315 | u32 val; \ | |
316 | \ | |
317 | val = simple_strtoul(buf, NULL, 10) / 10; \ | |
318 | \ | |
9a61bf63 | 319 | mutex_lock(&data->update_lock); \ |
1da177e4 LT |
320 | data->in_##reg[nr] = IN_TO_REG(val); \ |
321 | w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \ | |
322 | \ | |
9a61bf63 | 323 | mutex_unlock(&data->update_lock); \ |
1da177e4 LT |
324 | return count; \ |
325 | } | |
326 | store_in_reg(MIN, min); | |
327 | store_in_reg(MAX, max); | |
328 | ||
329 | #define sysfs_in_offset(offset) \ | |
330 | static ssize_t \ | |
e404e274 | 331 | show_regs_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
332 | { \ |
333 | return show_in(dev, buf, offset); \ | |
334 | } \ | |
335 | static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL); | |
336 | ||
337 | #define sysfs_in_reg_offset(reg, offset) \ | |
e404e274 | 338 | static ssize_t show_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
339 | { \ |
340 | return show_in_##reg (dev, buf, offset); \ | |
341 | } \ | |
e404e274 | 342 | static ssize_t store_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
343 | { \ |
344 | return store_in_##reg (dev, buf, count, offset); \ | |
345 | } \ | |
346 | static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_in_##reg##offset, store_regs_in_##reg##offset); | |
347 | ||
348 | #define sysfs_in_offsets(offset) \ | |
349 | sysfs_in_offset(offset); \ | |
350 | sysfs_in_reg_offset(min, offset); \ | |
351 | sysfs_in_reg_offset(max, offset); | |
352 | ||
353 | sysfs_in_offsets(0); | |
354 | sysfs_in_offsets(1); | |
355 | sysfs_in_offsets(2); | |
356 | sysfs_in_offsets(3); | |
357 | sysfs_in_offsets(4); | |
358 | sysfs_in_offsets(5); | |
359 | sysfs_in_offsets(6); | |
360 | sysfs_in_offsets(7); | |
361 | sysfs_in_offsets(8); | |
362 | ||
363 | #define device_create_file_in(client, offset) \ | |
364 | do { \ | |
365 | device_create_file(&client->dev, &dev_attr_in##offset##_input); \ | |
366 | device_create_file(&client->dev, &dev_attr_in##offset##_min); \ | |
367 | device_create_file(&client->dev, &dev_attr_in##offset##_max); \ | |
368 | } while (0) | |
369 | ||
370 | #define show_fan_reg(reg) \ | |
371 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
372 | { \ | |
373 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
374 | return sprintf(buf,"%ld\n", \ | |
375 | FAN_FROM_REG(data->reg[nr-1], (long)DIV_FROM_REG(data->fan_div[nr-1]))); \ | |
376 | } | |
377 | show_fan_reg(fan); | |
378 | show_fan_reg(fan_min); | |
379 | ||
380 | static ssize_t | |
381 | store_fan_min(struct device *dev, const char *buf, size_t count, int nr) | |
382 | { | |
383 | struct i2c_client *client = to_i2c_client(dev); | |
384 | struct w83781d_data *data = i2c_get_clientdata(client); | |
385 | u32 val; | |
386 | ||
387 | val = simple_strtoul(buf, NULL, 10); | |
388 | ||
9a61bf63 | 389 | mutex_lock(&data->update_lock); |
1da177e4 LT |
390 | data->fan_min[nr - 1] = |
391 | FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1])); | |
392 | w83781d_write_value(client, W83781D_REG_FAN_MIN(nr), | |
393 | data->fan_min[nr - 1]); | |
394 | ||
9a61bf63 | 395 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
396 | return count; |
397 | } | |
398 | ||
399 | #define sysfs_fan_offset(offset) \ | |
e404e274 | 400 | static ssize_t show_regs_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
401 | { \ |
402 | return show_fan(dev, buf, offset); \ | |
403 | } \ | |
404 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL); | |
405 | ||
406 | #define sysfs_fan_min_offset(offset) \ | |
e404e274 | 407 | static ssize_t show_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
408 | { \ |
409 | return show_fan_min(dev, buf, offset); \ | |
410 | } \ | |
e404e274 | 411 | static ssize_t store_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
412 | { \ |
413 | return store_fan_min(dev, buf, count, offset); \ | |
414 | } \ | |
415 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, show_regs_fan_min##offset, store_regs_fan_min##offset); | |
416 | ||
417 | sysfs_fan_offset(1); | |
418 | sysfs_fan_min_offset(1); | |
419 | sysfs_fan_offset(2); | |
420 | sysfs_fan_min_offset(2); | |
421 | sysfs_fan_offset(3); | |
422 | sysfs_fan_min_offset(3); | |
423 | ||
424 | #define device_create_file_fan(client, offset) \ | |
425 | do { \ | |
426 | device_create_file(&client->dev, &dev_attr_fan##offset##_input); \ | |
427 | device_create_file(&client->dev, &dev_attr_fan##offset##_min); \ | |
428 | } while (0) | |
429 | ||
430 | #define show_temp_reg(reg) \ | |
431 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
432 | { \ | |
433 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
434 | if (nr >= 2) { /* TEMP2 and TEMP3 */ \ | |
435 | return sprintf(buf,"%d\n", \ | |
436 | LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \ | |
437 | } else { /* TEMP1 */ \ | |
438 | return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \ | |
439 | } \ | |
440 | } | |
441 | show_temp_reg(temp); | |
442 | show_temp_reg(temp_max); | |
443 | show_temp_reg(temp_max_hyst); | |
444 | ||
445 | #define store_temp_reg(REG, reg) \ | |
446 | static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \ | |
447 | { \ | |
448 | struct i2c_client *client = to_i2c_client(dev); \ | |
449 | struct w83781d_data *data = i2c_get_clientdata(client); \ | |
450 | s32 val; \ | |
451 | \ | |
452 | val = simple_strtol(buf, NULL, 10); \ | |
453 | \ | |
9a61bf63 | 454 | mutex_lock(&data->update_lock); \ |
1da177e4 LT |
455 | \ |
456 | if (nr >= 2) { /* TEMP2 and TEMP3 */ \ | |
457 | data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \ | |
458 | w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \ | |
459 | data->temp_##reg##_add[nr-2]); \ | |
460 | } else { /* TEMP1 */ \ | |
461 | data->temp_##reg = TEMP_TO_REG(val); \ | |
462 | w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \ | |
463 | data->temp_##reg); \ | |
464 | } \ | |
465 | \ | |
9a61bf63 | 466 | mutex_unlock(&data->update_lock); \ |
1da177e4 LT |
467 | return count; \ |
468 | } | |
469 | store_temp_reg(OVER, max); | |
470 | store_temp_reg(HYST, max_hyst); | |
471 | ||
472 | #define sysfs_temp_offset(offset) \ | |
473 | static ssize_t \ | |
e404e274 | 474 | show_regs_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
475 | { \ |
476 | return show_temp(dev, buf, offset); \ | |
477 | } \ | |
478 | static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL); | |
479 | ||
480 | #define sysfs_temp_reg_offset(reg, offset) \ | |
e404e274 | 481 | static ssize_t show_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
482 | { \ |
483 | return show_temp_##reg (dev, buf, offset); \ | |
484 | } \ | |
e404e274 | 485 | static ssize_t store_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
486 | { \ |
487 | return store_temp_##reg (dev, buf, count, offset); \ | |
488 | } \ | |
489 | static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_temp_##reg##offset, store_regs_temp_##reg##offset); | |
490 | ||
491 | #define sysfs_temp_offsets(offset) \ | |
492 | sysfs_temp_offset(offset); \ | |
493 | sysfs_temp_reg_offset(max, offset); \ | |
494 | sysfs_temp_reg_offset(max_hyst, offset); | |
495 | ||
496 | sysfs_temp_offsets(1); | |
497 | sysfs_temp_offsets(2); | |
498 | sysfs_temp_offsets(3); | |
499 | ||
500 | #define device_create_file_temp(client, offset) \ | |
501 | do { \ | |
502 | device_create_file(&client->dev, &dev_attr_temp##offset##_input); \ | |
503 | device_create_file(&client->dev, &dev_attr_temp##offset##_max); \ | |
504 | device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \ | |
505 | } while (0) | |
506 | ||
507 | static ssize_t | |
e404e274 | 508 | show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
509 | { |
510 | struct w83781d_data *data = w83781d_update_device(dev); | |
511 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
512 | } | |
513 | ||
514 | static | |
515 | DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
516 | #define device_create_file_vid(client) \ | |
517 | device_create_file(&client->dev, &dev_attr_cpu0_vid); | |
518 | static ssize_t | |
e404e274 | 519 | show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
520 | { |
521 | struct w83781d_data *data = w83781d_update_device(dev); | |
522 | return sprintf(buf, "%ld\n", (long) data->vrm); | |
523 | } | |
524 | ||
525 | static ssize_t | |
e404e274 | 526 | store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
527 | { |
528 | struct i2c_client *client = to_i2c_client(dev); | |
529 | struct w83781d_data *data = i2c_get_clientdata(client); | |
530 | u32 val; | |
531 | ||
532 | val = simple_strtoul(buf, NULL, 10); | |
533 | data->vrm = val; | |
534 | ||
535 | return count; | |
536 | } | |
537 | ||
538 | static | |
539 | DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
540 | #define device_create_file_vrm(client) \ | |
541 | device_create_file(&client->dev, &dev_attr_vrm); | |
542 | static ssize_t | |
e404e274 | 543 | show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
544 | { |
545 | struct w83781d_data *data = w83781d_update_device(dev); | |
68188ba7 | 546 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
547 | } |
548 | ||
549 | static | |
550 | DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
551 | #define device_create_file_alarms(client) \ | |
552 | device_create_file(&client->dev, &dev_attr_alarms); | |
e404e274 | 553 | static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
554 | { |
555 | struct w83781d_data *data = w83781d_update_device(dev); | |
556 | return sprintf(buf, "%ld\n", | |
557 | (long)BEEP_MASK_FROM_REG(data->beep_mask, data->type)); | |
558 | } | |
e404e274 | 559 | static ssize_t show_beep_enable (struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
560 | { |
561 | struct w83781d_data *data = w83781d_update_device(dev); | |
562 | return sprintf(buf, "%ld\n", | |
563 | (long)BEEP_ENABLE_FROM_REG(data->beep_enable)); | |
564 | } | |
565 | ||
566 | #define BEEP_ENABLE 0 /* Store beep_enable */ | |
567 | #define BEEP_MASK 1 /* Store beep_mask */ | |
568 | ||
569 | static ssize_t | |
570 | store_beep_reg(struct device *dev, const char *buf, size_t count, | |
571 | int update_mask) | |
572 | { | |
573 | struct i2c_client *client = to_i2c_client(dev); | |
574 | struct w83781d_data *data = i2c_get_clientdata(client); | |
575 | u32 val, val2; | |
576 | ||
577 | val = simple_strtoul(buf, NULL, 10); | |
578 | ||
9a61bf63 | 579 | mutex_lock(&data->update_lock); |
1da177e4 LT |
580 | |
581 | if (update_mask == BEEP_MASK) { /* We are storing beep_mask */ | |
582 | data->beep_mask = BEEP_MASK_TO_REG(val, data->type); | |
583 | w83781d_write_value(client, W83781D_REG_BEEP_INTS1, | |
584 | data->beep_mask & 0xff); | |
585 | ||
586 | if ((data->type != w83781d) && (data->type != as99127f)) { | |
587 | w83781d_write_value(client, W83781D_REG_BEEP_INTS3, | |
588 | ((data->beep_mask) >> 16) & 0xff); | |
589 | } | |
590 | ||
591 | val2 = (data->beep_mask >> 8) & 0x7f; | |
592 | } else { /* We are storing beep_enable */ | |
593 | val2 = w83781d_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f; | |
594 | data->beep_enable = BEEP_ENABLE_TO_REG(val); | |
595 | } | |
596 | ||
597 | w83781d_write_value(client, W83781D_REG_BEEP_INTS2, | |
598 | val2 | data->beep_enable << 7); | |
599 | ||
9a61bf63 | 600 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
601 | return count; |
602 | } | |
603 | ||
604 | #define sysfs_beep(REG, reg) \ | |
e404e274 | 605 | static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 | 606 | { \ |
e404e274 | 607 | return show_beep_##reg(dev, attr, buf); \ |
1da177e4 | 608 | } \ |
e404e274 | 609 | static ssize_t store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
610 | { \ |
611 | return store_beep_reg(dev, buf, count, BEEP_##REG); \ | |
612 | } \ | |
613 | static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, show_regs_beep_##reg, store_regs_beep_##reg); | |
614 | ||
615 | sysfs_beep(ENABLE, enable); | |
616 | sysfs_beep(MASK, mask); | |
617 | ||
618 | #define device_create_file_beep(client) \ | |
619 | do { \ | |
620 | device_create_file(&client->dev, &dev_attr_beep_enable); \ | |
621 | device_create_file(&client->dev, &dev_attr_beep_mask); \ | |
622 | } while (0) | |
623 | ||
624 | static ssize_t | |
625 | show_fan_div_reg(struct device *dev, char *buf, int nr) | |
626 | { | |
627 | struct w83781d_data *data = w83781d_update_device(dev); | |
628 | return sprintf(buf, "%ld\n", | |
629 | (long) DIV_FROM_REG(data->fan_div[nr - 1])); | |
630 | } | |
631 | ||
632 | /* Note: we save and restore the fan minimum here, because its value is | |
633 | determined in part by the fan divisor. This follows the principle of | |
d6e05edc | 634 | least surprise; the user doesn't expect the fan minimum to change just |
1da177e4 LT |
635 | because the divisor changed. */ |
636 | static ssize_t | |
637 | store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr) | |
638 | { | |
639 | struct i2c_client *client = to_i2c_client(dev); | |
640 | struct w83781d_data *data = i2c_get_clientdata(client); | |
641 | unsigned long min; | |
642 | u8 reg; | |
643 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
644 | ||
9a61bf63 | 645 | mutex_lock(&data->update_lock); |
1da177e4 LT |
646 | |
647 | /* Save fan_min */ | |
648 | min = FAN_FROM_REG(data->fan_min[nr], | |
649 | DIV_FROM_REG(data->fan_div[nr])); | |
650 | ||
651 | data->fan_div[nr] = DIV_TO_REG(val, data->type); | |
652 | ||
653 | reg = (w83781d_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV) | |
654 | & (nr==0 ? 0xcf : 0x3f)) | |
655 | | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6)); | |
656 | w83781d_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg); | |
657 | ||
658 | /* w83781d and as99127f don't have extended divisor bits */ | |
659 | if (data->type != w83781d && data->type != as99127f) { | |
660 | reg = (w83781d_read_value(client, W83781D_REG_VBAT) | |
661 | & ~(1 << (5 + nr))) | |
662 | | ((data->fan_div[nr] & 0x04) << (3 + nr)); | |
663 | w83781d_write_value(client, W83781D_REG_VBAT, reg); | |
664 | } | |
665 | ||
666 | /* Restore fan_min */ | |
667 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
668 | w83781d_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]); | |
669 | ||
9a61bf63 | 670 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
671 | return count; |
672 | } | |
673 | ||
674 | #define sysfs_fan_div(offset) \ | |
e404e274 | 675 | static ssize_t show_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
676 | { \ |
677 | return show_fan_div_reg(dev, buf, offset); \ | |
678 | } \ | |
e404e274 | 679 | static ssize_t store_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
680 | { \ |
681 | return store_fan_div_reg(dev, buf, count, offset - 1); \ | |
682 | } \ | |
683 | static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, show_regs_fan_div_##offset, store_regs_fan_div_##offset); | |
684 | ||
685 | sysfs_fan_div(1); | |
686 | sysfs_fan_div(2); | |
687 | sysfs_fan_div(3); | |
688 | ||
689 | #define device_create_file_fan_div(client, offset) \ | |
690 | do { \ | |
691 | device_create_file(&client->dev, &dev_attr_fan##offset##_div); \ | |
692 | } while (0) | |
693 | ||
694 | static ssize_t | |
695 | show_pwm_reg(struct device *dev, char *buf, int nr) | |
696 | { | |
697 | struct w83781d_data *data = w83781d_update_device(dev); | |
698 | return sprintf(buf, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr - 1])); | |
699 | } | |
700 | ||
701 | static ssize_t | |
702 | show_pwmenable_reg(struct device *dev, char *buf, int nr) | |
703 | { | |
704 | struct w83781d_data *data = w83781d_update_device(dev); | |
705 | return sprintf(buf, "%ld\n", (long) data->pwmenable[nr - 1]); | |
706 | } | |
707 | ||
708 | static ssize_t | |
709 | store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr) | |
710 | { | |
711 | struct i2c_client *client = to_i2c_client(dev); | |
712 | struct w83781d_data *data = i2c_get_clientdata(client); | |
713 | u32 val; | |
714 | ||
715 | val = simple_strtoul(buf, NULL, 10); | |
716 | ||
9a61bf63 | 717 | mutex_lock(&data->update_lock); |
1da177e4 LT |
718 | data->pwm[nr - 1] = PWM_TO_REG(val); |
719 | w83781d_write_value(client, W83781D_REG_PWM(nr), data->pwm[nr - 1]); | |
9a61bf63 | 720 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
721 | return count; |
722 | } | |
723 | ||
724 | static ssize_t | |
725 | store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr) | |
726 | { | |
727 | struct i2c_client *client = to_i2c_client(dev); | |
728 | struct w83781d_data *data = i2c_get_clientdata(client); | |
729 | u32 val, reg; | |
730 | ||
731 | val = simple_strtoul(buf, NULL, 10); | |
732 | ||
9a61bf63 | 733 | mutex_lock(&data->update_lock); |
1da177e4 LT |
734 | |
735 | switch (val) { | |
736 | case 0: | |
737 | case 1: | |
738 | reg = w83781d_read_value(client, W83781D_REG_PWMCLK12); | |
739 | w83781d_write_value(client, W83781D_REG_PWMCLK12, | |
740 | (reg & 0xf7) | (val << 3)); | |
741 | ||
742 | reg = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); | |
743 | w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, | |
744 | (reg & 0xef) | (!val << 4)); | |
745 | ||
746 | data->pwmenable[nr - 1] = val; | |
747 | break; | |
748 | ||
749 | default: | |
9a61bf63 | 750 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
751 | return -EINVAL; |
752 | } | |
753 | ||
9a61bf63 | 754 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
755 | return count; |
756 | } | |
757 | ||
758 | #define sysfs_pwm(offset) \ | |
e404e274 | 759 | static ssize_t show_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
760 | { \ |
761 | return show_pwm_reg(dev, buf, offset); \ | |
762 | } \ | |
e404e274 | 763 | static ssize_t store_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
764 | const char *buf, size_t count) \ |
765 | { \ | |
766 | return store_pwm_reg(dev, buf, count, offset); \ | |
767 | } \ | |
768 | static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
769 | show_regs_pwm_##offset, store_regs_pwm_##offset); | |
770 | ||
771 | #define sysfs_pwmenable(offset) \ | |
e404e274 | 772 | static ssize_t show_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
773 | { \ |
774 | return show_pwmenable_reg(dev, buf, offset); \ | |
775 | } \ | |
e404e274 | 776 | static ssize_t store_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
777 | const char *buf, size_t count) \ |
778 | { \ | |
779 | return store_pwmenable_reg(dev, buf, count, offset); \ | |
780 | } \ | |
781 | static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ | |
782 | show_regs_pwmenable_##offset, store_regs_pwmenable_##offset); | |
783 | ||
784 | sysfs_pwm(1); | |
785 | sysfs_pwm(2); | |
786 | sysfs_pwmenable(2); /* only PWM2 can be enabled/disabled */ | |
787 | sysfs_pwm(3); | |
788 | sysfs_pwm(4); | |
789 | ||
790 | #define device_create_file_pwm(client, offset) \ | |
791 | do { \ | |
792 | device_create_file(&client->dev, &dev_attr_pwm##offset); \ | |
793 | } while (0) | |
794 | ||
795 | #define device_create_file_pwmenable(client, offset) \ | |
796 | do { \ | |
797 | device_create_file(&client->dev, &dev_attr_pwm##offset##_enable); \ | |
798 | } while (0) | |
799 | ||
800 | static ssize_t | |
801 | show_sensor_reg(struct device *dev, char *buf, int nr) | |
802 | { | |
803 | struct w83781d_data *data = w83781d_update_device(dev); | |
804 | return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]); | |
805 | } | |
806 | ||
807 | static ssize_t | |
808 | store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr) | |
809 | { | |
810 | struct i2c_client *client = to_i2c_client(dev); | |
811 | struct w83781d_data *data = i2c_get_clientdata(client); | |
812 | u32 val, tmp; | |
813 | ||
814 | val = simple_strtoul(buf, NULL, 10); | |
815 | ||
9a61bf63 | 816 | mutex_lock(&data->update_lock); |
1da177e4 LT |
817 | |
818 | switch (val) { | |
819 | case 1: /* PII/Celeron diode */ | |
820 | tmp = w83781d_read_value(client, W83781D_REG_SCFG1); | |
821 | w83781d_write_value(client, W83781D_REG_SCFG1, | |
822 | tmp | BIT_SCFG1[nr - 1]); | |
823 | tmp = w83781d_read_value(client, W83781D_REG_SCFG2); | |
824 | w83781d_write_value(client, W83781D_REG_SCFG2, | |
825 | tmp | BIT_SCFG2[nr - 1]); | |
826 | data->sens[nr - 1] = val; | |
827 | break; | |
828 | case 2: /* 3904 */ | |
829 | tmp = w83781d_read_value(client, W83781D_REG_SCFG1); | |
830 | w83781d_write_value(client, W83781D_REG_SCFG1, | |
831 | tmp | BIT_SCFG1[nr - 1]); | |
832 | tmp = w83781d_read_value(client, W83781D_REG_SCFG2); | |
833 | w83781d_write_value(client, W83781D_REG_SCFG2, | |
834 | tmp & ~BIT_SCFG2[nr - 1]); | |
835 | data->sens[nr - 1] = val; | |
836 | break; | |
837 | case W83781D_DEFAULT_BETA: /* thermistor */ | |
838 | tmp = w83781d_read_value(client, W83781D_REG_SCFG1); | |
839 | w83781d_write_value(client, W83781D_REG_SCFG1, | |
840 | tmp & ~BIT_SCFG1[nr - 1]); | |
841 | data->sens[nr - 1] = val; | |
842 | break; | |
843 | default: | |
844 | dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or %d\n", | |
845 | (long) val, W83781D_DEFAULT_BETA); | |
846 | break; | |
847 | } | |
848 | ||
9a61bf63 | 849 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
850 | return count; |
851 | } | |
852 | ||
853 | #define sysfs_sensor(offset) \ | |
e404e274 | 854 | static ssize_t show_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
855 | { \ |
856 | return show_sensor_reg(dev, buf, offset); \ | |
857 | } \ | |
e404e274 | 858 | static ssize_t store_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ |
1da177e4 LT |
859 | { \ |
860 | return store_sensor_reg(dev, buf, count, offset); \ | |
861 | } \ | |
862 | static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, show_regs_sensor_##offset, store_regs_sensor_##offset); | |
863 | ||
864 | sysfs_sensor(1); | |
865 | sysfs_sensor(2); | |
866 | sysfs_sensor(3); | |
867 | ||
868 | #define device_create_file_sensor(client, offset) \ | |
869 | do { \ | |
870 | device_create_file(&client->dev, &dev_attr_temp##offset##_type); \ | |
871 | } while (0) | |
872 | ||
873 | /* This function is called when: | |
874 | * w83781d_driver is inserted (when this module is loaded), for each | |
875 | available adapter | |
876 | * when a new adapter is inserted (and w83781d_driver is still present) */ | |
877 | static int | |
878 | w83781d_attach_adapter(struct i2c_adapter *adapter) | |
879 | { | |
880 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
881 | return 0; | |
2ed2dc3c | 882 | return i2c_probe(adapter, &addr_data, w83781d_detect); |
1da177e4 LT |
883 | } |
884 | ||
2d8672c5 JD |
885 | static int |
886 | w83781d_isa_attach_adapter(struct i2c_adapter *adapter) | |
887 | { | |
888 | return w83781d_detect(adapter, isa_address, -1); | |
889 | } | |
890 | ||
1da177e4 LT |
891 | /* Assumes that adapter is of I2C, not ISA variety. |
892 | * OTHERWISE DON'T CALL THIS | |
893 | */ | |
894 | static int | |
895 | w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind, | |
896 | struct i2c_client *new_client) | |
897 | { | |
898 | int i, val1 = 0, id; | |
899 | int err; | |
900 | const char *client_name = ""; | |
901 | struct w83781d_data *data = i2c_get_clientdata(new_client); | |
902 | ||
ba9c2e8d | 903 | data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
904 | if (!(data->lm75[0])) { |
905 | err = -ENOMEM; | |
906 | goto ERROR_SC_0; | |
907 | } | |
1da177e4 LT |
908 | |
909 | id = i2c_adapter_id(adapter); | |
910 | ||
911 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
912 | for (i = 2; i <= 3; i++) { | |
913 | if (force_subclients[i] < 0x48 || | |
914 | force_subclients[i] > 0x4f) { | |
915 | dev_err(&new_client->dev, "Invalid subclient " | |
916 | "address %d; must be 0x48-0x4f\n", | |
917 | force_subclients[i]); | |
918 | err = -EINVAL; | |
919 | goto ERROR_SC_1; | |
920 | } | |
921 | } | |
922 | w83781d_write_value(new_client, W83781D_REG_I2C_SUBADDR, | |
923 | (force_subclients[2] & 0x07) | | |
924 | ((force_subclients[3] & 0x07) << 4)); | |
925 | data->lm75[0]->addr = force_subclients[2]; | |
926 | } else { | |
927 | val1 = w83781d_read_value(new_client, W83781D_REG_I2C_SUBADDR); | |
928 | data->lm75[0]->addr = 0x48 + (val1 & 0x07); | |
929 | } | |
930 | ||
931 | if (kind != w83783s) { | |
ba9c2e8d | 932 | data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
933 | if (!(data->lm75[1])) { |
934 | err = -ENOMEM; | |
935 | goto ERROR_SC_1; | |
936 | } | |
1da177e4 LT |
937 | |
938 | if (force_subclients[0] == id && | |
939 | force_subclients[1] == address) { | |
940 | data->lm75[1]->addr = force_subclients[3]; | |
941 | } else { | |
942 | data->lm75[1]->addr = 0x48 + ((val1 >> 4) & 0x07); | |
943 | } | |
944 | if (data->lm75[0]->addr == data->lm75[1]->addr) { | |
945 | dev_err(&new_client->dev, | |
946 | "Duplicate addresses 0x%x for subclients.\n", | |
947 | data->lm75[0]->addr); | |
948 | err = -EBUSY; | |
949 | goto ERROR_SC_2; | |
950 | } | |
951 | } | |
952 | ||
953 | if (kind == w83781d) | |
954 | client_name = "w83781d subclient"; | |
955 | else if (kind == w83782d) | |
956 | client_name = "w83782d subclient"; | |
957 | else if (kind == w83783s) | |
958 | client_name = "w83783s subclient"; | |
959 | else if (kind == w83627hf) | |
960 | client_name = "w83627hf subclient"; | |
961 | else if (kind == as99127f) | |
962 | client_name = "as99127f subclient"; | |
963 | ||
964 | for (i = 0; i <= 1; i++) { | |
965 | /* store all data in w83781d */ | |
966 | i2c_set_clientdata(data->lm75[i], NULL); | |
967 | data->lm75[i]->adapter = adapter; | |
968 | data->lm75[i]->driver = &w83781d_driver; | |
969 | data->lm75[i]->flags = 0; | |
970 | strlcpy(data->lm75[i]->name, client_name, | |
971 | I2C_NAME_SIZE); | |
972 | if ((err = i2c_attach_client(data->lm75[i]))) { | |
973 | dev_err(&new_client->dev, "Subclient %d " | |
974 | "registration at address 0x%x " | |
975 | "failed.\n", i, data->lm75[i]->addr); | |
976 | if (i == 1) | |
977 | goto ERROR_SC_3; | |
978 | goto ERROR_SC_2; | |
979 | } | |
980 | if (kind == w83783s) | |
981 | break; | |
982 | } | |
983 | ||
984 | return 0; | |
985 | ||
986 | /* Undo inits in case of errors */ | |
987 | ERROR_SC_3: | |
988 | i2c_detach_client(data->lm75[0]); | |
989 | ERROR_SC_2: | |
6044ec88 | 990 | kfree(data->lm75[1]); |
1da177e4 | 991 | ERROR_SC_1: |
6044ec88 | 992 | kfree(data->lm75[0]); |
1da177e4 LT |
993 | ERROR_SC_0: |
994 | return err; | |
995 | } | |
996 | ||
997 | static int | |
998 | w83781d_detect(struct i2c_adapter *adapter, int address, int kind) | |
999 | { | |
1000 | int i = 0, val1 = 0, val2; | |
1001 | struct i2c_client *new_client; | |
1002 | struct w83781d_data *data; | |
1003 | int err; | |
1004 | const char *client_name = ""; | |
1005 | int is_isa = i2c_is_isa_adapter(adapter); | |
1006 | enum vendor { winbond, asus } vendid; | |
1007 | ||
1008 | if (!is_isa | |
1009 | && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1010 | err = -EINVAL; | |
1011 | goto ERROR0; | |
1012 | } | |
1013 | ||
1014 | /* Prevent users from forcing a kind for a bus it isn't supposed | |
1015 | to possibly be on */ | |
1016 | if (is_isa && (kind == as99127f || kind == w83783s)) { | |
1017 | dev_err(&adapter->dev, | |
1018 | "Cannot force I2C-only chip for ISA address 0x%02x.\n", | |
1019 | address); | |
1020 | err = -EINVAL; | |
1021 | goto ERROR0; | |
1022 | } | |
1da177e4 LT |
1023 | |
1024 | if (is_isa) | |
1025 | if (!request_region(address, W83781D_EXTENT, | |
cdaf7934 | 1026 | w83781d_isa_driver.driver.name)) { |
1da177e4 LT |
1027 | dev_dbg(&adapter->dev, "Request of region " |
1028 | "0x%x-0x%x for w83781d failed\n", address, | |
1029 | address + W83781D_EXTENT - 1); | |
1030 | err = -EBUSY; | |
1031 | goto ERROR0; | |
1032 | } | |
1033 | ||
1034 | /* Probe whether there is anything available on this address. Already | |
1035 | done for SMBus clients */ | |
1036 | if (kind < 0) { | |
1037 | if (is_isa) { | |
1038 | ||
1039 | #define REALLY_SLOW_IO | |
1040 | /* We need the timeouts for at least some LM78-like | |
1041 | chips. But only if we read 'undefined' registers. */ | |
1042 | i = inb_p(address + 1); | |
1043 | if (inb_p(address + 2) != i | |
1044 | || inb_p(address + 3) != i | |
1045 | || inb_p(address + 7) != i) { | |
1046 | dev_dbg(&adapter->dev, "Detection of w83781d " | |
1047 | "chip failed at step 1\n"); | |
1048 | err = -ENODEV; | |
1049 | goto ERROR1; | |
1050 | } | |
1051 | #undef REALLY_SLOW_IO | |
1052 | ||
1053 | /* Let's just hope nothing breaks here */ | |
1054 | i = inb_p(address + 5) & 0x7f; | |
1055 | outb_p(~i & 0x7f, address + 5); | |
1056 | val2 = inb_p(address + 5) & 0x7f; | |
1057 | if (val2 != (~i & 0x7f)) { | |
1058 | outb_p(i, address + 5); | |
1059 | dev_dbg(&adapter->dev, "Detection of w83781d " | |
1060 | "chip failed at step 2 (0x%x != " | |
1061 | "0x%x at 0x%x)\n", val2, ~i & 0x7f, | |
1062 | address + 5); | |
1063 | err = -ENODEV; | |
1064 | goto ERROR1; | |
1065 | } | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | /* OK. For now, we presume we have a valid client. We now create the | |
1070 | client structure, even though we cannot fill it completely yet. | |
1071 | But it allows us to access w83781d_{read,write}_value. */ | |
1072 | ||
ba9c2e8d | 1073 | if (!(data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL))) { |
1da177e4 LT |
1074 | err = -ENOMEM; |
1075 | goto ERROR1; | |
1076 | } | |
1da177e4 LT |
1077 | |
1078 | new_client = &data->client; | |
1079 | i2c_set_clientdata(new_client, data); | |
1080 | new_client->addr = address; | |
9a61bf63 | 1081 | mutex_init(&data->lock); |
1da177e4 | 1082 | new_client->adapter = adapter; |
fde09509 | 1083 | new_client->driver = is_isa ? &w83781d_isa_driver : &w83781d_driver; |
1da177e4 LT |
1084 | new_client->flags = 0; |
1085 | ||
1086 | /* Now, we do the remaining detection. */ | |
1087 | ||
1088 | /* The w8378?d may be stuck in some other bank than bank 0. This may | |
1089 | make reading other information impossible. Specify a force=... or | |
1090 | force_*=... parameter, and the Winbond will be reset to the right | |
1091 | bank. */ | |
1092 | if (kind < 0) { | |
1093 | if (w83781d_read_value(new_client, W83781D_REG_CONFIG) & 0x80) { | |
1094 | dev_dbg(&new_client->dev, "Detection failed at step " | |
1095 | "3\n"); | |
1096 | err = -ENODEV; | |
1097 | goto ERROR2; | |
1098 | } | |
1099 | val1 = w83781d_read_value(new_client, W83781D_REG_BANK); | |
1100 | val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN); | |
1101 | /* Check for Winbond or Asus ID if in bank 0 */ | |
1102 | if ((!(val1 & 0x07)) && | |
1103 | (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3)) | |
1104 | || ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) { | |
1105 | dev_dbg(&new_client->dev, "Detection failed at step " | |
1106 | "4\n"); | |
1107 | err = -ENODEV; | |
1108 | goto ERROR2; | |
1109 | } | |
1110 | /* If Winbond SMBus, check address at 0x48. | |
1111 | Asus doesn't support, except for as99127f rev.2 */ | |
1112 | if ((!is_isa) && (((!(val1 & 0x80)) && (val2 == 0xa3)) || | |
1113 | ((val1 & 0x80) && (val2 == 0x5c)))) { | |
1114 | if (w83781d_read_value | |
1115 | (new_client, W83781D_REG_I2C_ADDR) != address) { | |
1116 | dev_dbg(&new_client->dev, "Detection failed " | |
1117 | "at step 5\n"); | |
1118 | err = -ENODEV; | |
1119 | goto ERROR2; | |
1120 | } | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | /* We have either had a force parameter, or we have already detected the | |
1125 | Winbond. Put it now into bank 0 and Vendor ID High Byte */ | |
1126 | w83781d_write_value(new_client, W83781D_REG_BANK, | |
1127 | (w83781d_read_value(new_client, | |
1128 | W83781D_REG_BANK) & 0x78) | | |
1129 | 0x80); | |
1130 | ||
1131 | /* Determine the chip type. */ | |
1132 | if (kind <= 0) { | |
1133 | /* get vendor ID */ | |
1134 | val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN); | |
1135 | if (val2 == 0x5c) | |
1136 | vendid = winbond; | |
1137 | else if (val2 == 0x12) | |
1138 | vendid = asus; | |
1139 | else { | |
1140 | dev_dbg(&new_client->dev, "Chip was made by neither " | |
1141 | "Winbond nor Asus?\n"); | |
1142 | err = -ENODEV; | |
1143 | goto ERROR2; | |
1144 | } | |
1145 | ||
1146 | val1 = w83781d_read_value(new_client, W83781D_REG_WCHIPID); | |
1147 | if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond) | |
1148 | kind = w83781d; | |
1149 | else if (val1 == 0x30 && vendid == winbond) | |
1150 | kind = w83782d; | |
1151 | else if (val1 == 0x40 && vendid == winbond && !is_isa | |
1152 | && address == 0x2d) | |
1153 | kind = w83783s; | |
7c7a5304 | 1154 | else if (val1 == 0x21 && vendid == winbond) |
1da177e4 LT |
1155 | kind = w83627hf; |
1156 | else if (val1 == 0x31 && !is_isa && address >= 0x28) | |
1157 | kind = as99127f; | |
1da177e4 LT |
1158 | else { |
1159 | if (kind == 0) | |
1160 | dev_warn(&new_client->dev, "Ignoring 'force' " | |
1161 | "parameter for unknown chip at " | |
1162 | "adapter %d, address 0x%02x\n", | |
1163 | i2c_adapter_id(adapter), address); | |
1164 | err = -EINVAL; | |
1165 | goto ERROR2; | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | if (kind == w83781d) { | |
1170 | client_name = "w83781d"; | |
1171 | } else if (kind == w83782d) { | |
1172 | client_name = "w83782d"; | |
1173 | } else if (kind == w83783s) { | |
1174 | client_name = "w83783s"; | |
1175 | } else if (kind == w83627hf) { | |
7c7a5304 | 1176 | client_name = "w83627hf"; |
1da177e4 LT |
1177 | } else if (kind == as99127f) { |
1178 | client_name = "as99127f"; | |
1da177e4 LT |
1179 | } |
1180 | ||
1181 | /* Fill in the remaining client fields and put into the global list */ | |
1182 | strlcpy(new_client->name, client_name, I2C_NAME_SIZE); | |
1183 | data->type = kind; | |
1184 | ||
1185 | data->valid = 0; | |
9a61bf63 | 1186 | mutex_init(&data->update_lock); |
1da177e4 LT |
1187 | |
1188 | /* Tell the I2C layer a new client has arrived */ | |
1189 | if ((err = i2c_attach_client(new_client))) | |
1190 | goto ERROR2; | |
1191 | ||
1192 | /* attach secondary i2c lm75-like clients */ | |
1193 | if (!is_isa) { | |
1194 | if ((err = w83781d_detect_subclients(adapter, address, | |
1195 | kind, new_client))) | |
1196 | goto ERROR3; | |
1197 | } else { | |
1198 | data->lm75[0] = NULL; | |
1199 | data->lm75[1] = NULL; | |
1200 | } | |
1201 | ||
1202 | /* Initialize the chip */ | |
1203 | w83781d_init_client(new_client); | |
1204 | ||
1205 | /* A few vars need to be filled upon startup */ | |
1206 | for (i = 1; i <= 3; i++) { | |
1207 | data->fan_min[i - 1] = w83781d_read_value(new_client, | |
1208 | W83781D_REG_FAN_MIN(i)); | |
1209 | } | |
1210 | if (kind != w83781d && kind != as99127f) | |
1211 | for (i = 0; i < 4; i++) | |
1212 | data->pwmenable[i] = 1; | |
1213 | ||
1214 | /* Register sysfs hooks */ | |
943b0830 MH |
1215 | data->class_dev = hwmon_device_register(&new_client->dev); |
1216 | if (IS_ERR(data->class_dev)) { | |
1217 | err = PTR_ERR(data->class_dev); | |
1218 | goto ERROR4; | |
1219 | } | |
1220 | ||
1da177e4 | 1221 | device_create_file_in(new_client, 0); |
7c7a5304 | 1222 | if (kind != w83783s) |
1da177e4 LT |
1223 | device_create_file_in(new_client, 1); |
1224 | device_create_file_in(new_client, 2); | |
1225 | device_create_file_in(new_client, 3); | |
1226 | device_create_file_in(new_client, 4); | |
1227 | device_create_file_in(new_client, 5); | |
1228 | device_create_file_in(new_client, 6); | |
1229 | if (kind != as99127f && kind != w83781d && kind != w83783s) { | |
1230 | device_create_file_in(new_client, 7); | |
1231 | device_create_file_in(new_client, 8); | |
1232 | } | |
1233 | ||
1234 | device_create_file_fan(new_client, 1); | |
1235 | device_create_file_fan(new_client, 2); | |
7c7a5304 | 1236 | device_create_file_fan(new_client, 3); |
1da177e4 LT |
1237 | |
1238 | device_create_file_temp(new_client, 1); | |
1239 | device_create_file_temp(new_client, 2); | |
7c7a5304 | 1240 | if (kind != w83783s) |
1da177e4 LT |
1241 | device_create_file_temp(new_client, 3); |
1242 | ||
7c7a5304 JD |
1243 | device_create_file_vid(new_client); |
1244 | device_create_file_vrm(new_client); | |
1da177e4 LT |
1245 | |
1246 | device_create_file_fan_div(new_client, 1); | |
1247 | device_create_file_fan_div(new_client, 2); | |
7c7a5304 | 1248 | device_create_file_fan_div(new_client, 3); |
1da177e4 LT |
1249 | |
1250 | device_create_file_alarms(new_client); | |
1251 | ||
1252 | device_create_file_beep(new_client); | |
1253 | ||
1254 | if (kind != w83781d && kind != as99127f) { | |
1255 | device_create_file_pwm(new_client, 1); | |
1256 | device_create_file_pwm(new_client, 2); | |
1257 | device_create_file_pwmenable(new_client, 2); | |
1258 | } | |
1259 | if (kind == w83782d && !is_isa) { | |
1260 | device_create_file_pwm(new_client, 3); | |
1261 | device_create_file_pwm(new_client, 4); | |
1262 | } | |
1263 | ||
1264 | if (kind != as99127f && kind != w83781d) { | |
1265 | device_create_file_sensor(new_client, 1); | |
1266 | device_create_file_sensor(new_client, 2); | |
7c7a5304 | 1267 | if (kind != w83783s) |
1da177e4 LT |
1268 | device_create_file_sensor(new_client, 3); |
1269 | } | |
1270 | ||
1271 | return 0; | |
1272 | ||
943b0830 MH |
1273 | ERROR4: |
1274 | if (data->lm75[1]) { | |
1275 | i2c_detach_client(data->lm75[1]); | |
1276 | kfree(data->lm75[1]); | |
1277 | } | |
1278 | if (data->lm75[0]) { | |
1279 | i2c_detach_client(data->lm75[0]); | |
1280 | kfree(data->lm75[0]); | |
1281 | } | |
1da177e4 LT |
1282 | ERROR3: |
1283 | i2c_detach_client(new_client); | |
1284 | ERROR2: | |
1285 | kfree(data); | |
1286 | ERROR1: | |
1287 | if (is_isa) | |
1288 | release_region(address, W83781D_EXTENT); | |
1289 | ERROR0: | |
1290 | return err; | |
1291 | } | |
1292 | ||
1293 | static int | |
1294 | w83781d_detach_client(struct i2c_client *client) | |
1295 | { | |
943b0830 | 1296 | struct w83781d_data *data = i2c_get_clientdata(client); |
1da177e4 LT |
1297 | int err; |
1298 | ||
943b0830 MH |
1299 | /* main client */ |
1300 | if (data) | |
1301 | hwmon_device_unregister(data->class_dev); | |
1302 | ||
1da177e4 LT |
1303 | if (i2c_is_isa_client(client)) |
1304 | release_region(client->addr, W83781D_EXTENT); | |
1305 | ||
7bef5594 | 1306 | if ((err = i2c_detach_client(client))) |
1da177e4 | 1307 | return err; |
1da177e4 | 1308 | |
943b0830 MH |
1309 | /* main client */ |
1310 | if (data) | |
1311 | kfree(data); | |
1312 | ||
1313 | /* subclient */ | |
1314 | else | |
1da177e4 | 1315 | kfree(client); |
1da177e4 LT |
1316 | |
1317 | return 0; | |
1318 | } | |
1319 | ||
1320 | /* The SMBus locks itself, usually, but nothing may access the Winbond between | |
1321 | bank switches. ISA access must always be locked explicitly! | |
1322 | We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks, | |
1323 | would slow down the W83781D access and should not be necessary. | |
1324 | There are some ugly typecasts here, but the good news is - they should | |
1325 | nowhere else be necessary! */ | |
1326 | static int | |
1327 | w83781d_read_value(struct i2c_client *client, u16 reg) | |
1328 | { | |
1329 | struct w83781d_data *data = i2c_get_clientdata(client); | |
1330 | int res, word_sized, bank; | |
1331 | struct i2c_client *cl; | |
1332 | ||
9a61bf63 | 1333 | mutex_lock(&data->lock); |
1da177e4 LT |
1334 | if (i2c_is_isa_client(client)) { |
1335 | word_sized = (((reg & 0xff00) == 0x100) | |
1336 | || ((reg & 0xff00) == 0x200)) | |
1337 | && (((reg & 0x00ff) == 0x50) | |
1338 | || ((reg & 0x00ff) == 0x53) | |
1339 | || ((reg & 0x00ff) == 0x55)); | |
1340 | if (reg & 0xff00) { | |
1341 | outb_p(W83781D_REG_BANK, | |
1342 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1343 | outb_p(reg >> 8, | |
1344 | client->addr + W83781D_DATA_REG_OFFSET); | |
1345 | } | |
1346 | outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET); | |
1347 | res = inb_p(client->addr + W83781D_DATA_REG_OFFSET); | |
1348 | if (word_sized) { | |
1349 | outb_p((reg & 0xff) + 1, | |
1350 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1351 | res = | |
1352 | (res << 8) + inb_p(client->addr + | |
1353 | W83781D_DATA_REG_OFFSET); | |
1354 | } | |
1355 | if (reg & 0xff00) { | |
1356 | outb_p(W83781D_REG_BANK, | |
1357 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1358 | outb_p(0, client->addr + W83781D_DATA_REG_OFFSET); | |
1359 | } | |
1360 | } else { | |
1361 | bank = (reg >> 8) & 0x0f; | |
1362 | if (bank > 2) | |
1363 | /* switch banks */ | |
1364 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, | |
1365 | bank); | |
1366 | if (bank == 0 || bank > 2) { | |
1367 | res = i2c_smbus_read_byte_data(client, reg & 0xff); | |
1368 | } else { | |
1369 | /* switch to subclient */ | |
1370 | cl = data->lm75[bank - 1]; | |
1371 | /* convert from ISA to LM75 I2C addresses */ | |
1372 | switch (reg & 0xff) { | |
1373 | case 0x50: /* TEMP */ | |
1374 | res = swab16(i2c_smbus_read_word_data(cl, 0)); | |
1375 | break; | |
1376 | case 0x52: /* CONFIG */ | |
1377 | res = i2c_smbus_read_byte_data(cl, 1); | |
1378 | break; | |
1379 | case 0x53: /* HYST */ | |
1380 | res = swab16(i2c_smbus_read_word_data(cl, 2)); | |
1381 | break; | |
1382 | case 0x55: /* OVER */ | |
1383 | default: | |
1384 | res = swab16(i2c_smbus_read_word_data(cl, 3)); | |
1385 | break; | |
1386 | } | |
1387 | } | |
1388 | if (bank > 2) | |
1389 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0); | |
1390 | } | |
9a61bf63 | 1391 | mutex_unlock(&data->lock); |
1da177e4 LT |
1392 | return res; |
1393 | } | |
1394 | ||
1395 | static int | |
1396 | w83781d_write_value(struct i2c_client *client, u16 reg, u16 value) | |
1397 | { | |
1398 | struct w83781d_data *data = i2c_get_clientdata(client); | |
1399 | int word_sized, bank; | |
1400 | struct i2c_client *cl; | |
1401 | ||
9a61bf63 | 1402 | mutex_lock(&data->lock); |
1da177e4 LT |
1403 | if (i2c_is_isa_client(client)) { |
1404 | word_sized = (((reg & 0xff00) == 0x100) | |
1405 | || ((reg & 0xff00) == 0x200)) | |
1406 | && (((reg & 0x00ff) == 0x53) | |
1407 | || ((reg & 0x00ff) == 0x55)); | |
1408 | if (reg & 0xff00) { | |
1409 | outb_p(W83781D_REG_BANK, | |
1410 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1411 | outb_p(reg >> 8, | |
1412 | client->addr + W83781D_DATA_REG_OFFSET); | |
1413 | } | |
1414 | outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET); | |
1415 | if (word_sized) { | |
1416 | outb_p(value >> 8, | |
1417 | client->addr + W83781D_DATA_REG_OFFSET); | |
1418 | outb_p((reg & 0xff) + 1, | |
1419 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1420 | } | |
1421 | outb_p(value & 0xff, client->addr + W83781D_DATA_REG_OFFSET); | |
1422 | if (reg & 0xff00) { | |
1423 | outb_p(W83781D_REG_BANK, | |
1424 | client->addr + W83781D_ADDR_REG_OFFSET); | |
1425 | outb_p(0, client->addr + W83781D_DATA_REG_OFFSET); | |
1426 | } | |
1427 | } else { | |
1428 | bank = (reg >> 8) & 0x0f; | |
1429 | if (bank > 2) | |
1430 | /* switch banks */ | |
1431 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, | |
1432 | bank); | |
1433 | if (bank == 0 || bank > 2) { | |
1434 | i2c_smbus_write_byte_data(client, reg & 0xff, | |
1435 | value & 0xff); | |
1436 | } else { | |
1437 | /* switch to subclient */ | |
1438 | cl = data->lm75[bank - 1]; | |
1439 | /* convert from ISA to LM75 I2C addresses */ | |
1440 | switch (reg & 0xff) { | |
1441 | case 0x52: /* CONFIG */ | |
1442 | i2c_smbus_write_byte_data(cl, 1, value & 0xff); | |
1443 | break; | |
1444 | case 0x53: /* HYST */ | |
1445 | i2c_smbus_write_word_data(cl, 2, swab16(value)); | |
1446 | break; | |
1447 | case 0x55: /* OVER */ | |
1448 | i2c_smbus_write_word_data(cl, 3, swab16(value)); | |
1449 | break; | |
1450 | } | |
1451 | } | |
1452 | if (bank > 2) | |
1453 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0); | |
1454 | } | |
9a61bf63 | 1455 | mutex_unlock(&data->lock); |
1da177e4 LT |
1456 | return 0; |
1457 | } | |
1458 | ||
1da177e4 LT |
1459 | static void |
1460 | w83781d_init_client(struct i2c_client *client) | |
1461 | { | |
1462 | struct w83781d_data *data = i2c_get_clientdata(client); | |
1463 | int i, p; | |
1464 | int type = data->type; | |
1465 | u8 tmp; | |
1466 | ||
fabddcd4 | 1467 | if (reset && type != as99127f) { /* this resets registers we don't have |
1da177e4 | 1468 | documentation for on the as99127f */ |
fabddcd4 JD |
1469 | /* Resetting the chip has been the default for a long time, |
1470 | but it causes the BIOS initializations (fan clock dividers, | |
1471 | thermal sensor types...) to be lost, so it is now optional. | |
1472 | It might even go away if nobody reports it as being useful, | |
1473 | as I see very little reason why this would be needed at | |
1474 | all. */ | |
1475 | dev_info(&client->dev, "If reset=1 solved a problem you were " | |
1476 | "having, please report!\n"); | |
1477 | ||
1da177e4 LT |
1478 | /* save these registers */ |
1479 | i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); | |
1480 | p = w83781d_read_value(client, W83781D_REG_PWMCLK12); | |
1481 | /* Reset all except Watchdog values and last conversion values | |
1482 | This sets fan-divs to 2, among others */ | |
1483 | w83781d_write_value(client, W83781D_REG_CONFIG, 0x80); | |
1484 | /* Restore the registers and disable power-on abnormal beep. | |
1485 | This saves FAN 1/2/3 input/output values set by BIOS. */ | |
1486 | w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80); | |
1487 | w83781d_write_value(client, W83781D_REG_PWMCLK12, p); | |
1488 | /* Disable master beep-enable (reset turns it on). | |
1489 | Individual beep_mask should be reset to off but for some reason | |
1490 | disabling this bit helps some people not get beeped */ | |
1491 | w83781d_write_value(client, W83781D_REG_BEEP_INTS2, 0); | |
1492 | } | |
1493 | ||
fabddcd4 JD |
1494 | /* Disable power-on abnormal beep, as advised by the datasheet. |
1495 | Already done if reset=1. */ | |
1496 | if (init && !reset && type != as99127f) { | |
1497 | i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG); | |
1498 | w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80); | |
1499 | } | |
1500 | ||
303760b4 | 1501 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1502 | |
1503 | if ((type != w83781d) && (type != as99127f)) { | |
1504 | tmp = w83781d_read_value(client, W83781D_REG_SCFG1); | |
1505 | for (i = 1; i <= 3; i++) { | |
1506 | if (!(tmp & BIT_SCFG1[i - 1])) { | |
1507 | data->sens[i - 1] = W83781D_DEFAULT_BETA; | |
1508 | } else { | |
1509 | if (w83781d_read_value | |
1510 | (client, | |
1511 | W83781D_REG_SCFG2) & BIT_SCFG2[i - 1]) | |
1512 | data->sens[i - 1] = 1; | |
1513 | else | |
1514 | data->sens[i - 1] = 2; | |
1515 | } | |
7c7a5304 | 1516 | if (type == w83783s && i == 2) |
1da177e4 LT |
1517 | break; |
1518 | } | |
1519 | } | |
1520 | ||
1521 | if (init && type != as99127f) { | |
1522 | /* Enable temp2 */ | |
1523 | tmp = w83781d_read_value(client, W83781D_REG_TEMP2_CONFIG); | |
1524 | if (tmp & 0x01) { | |
1525 | dev_warn(&client->dev, "Enabling temp2, readings " | |
1526 | "might not make sense\n"); | |
1527 | w83781d_write_value(client, W83781D_REG_TEMP2_CONFIG, | |
1528 | tmp & 0xfe); | |
1529 | } | |
1530 | ||
1531 | /* Enable temp3 */ | |
7c7a5304 | 1532 | if (type != w83783s) { |
1da177e4 LT |
1533 | tmp = w83781d_read_value(client, |
1534 | W83781D_REG_TEMP3_CONFIG); | |
1535 | if (tmp & 0x01) { | |
1536 | dev_warn(&client->dev, "Enabling temp3, " | |
1537 | "readings might not make sense\n"); | |
1538 | w83781d_write_value(client, | |
1539 | W83781D_REG_TEMP3_CONFIG, tmp & 0xfe); | |
1540 | } | |
1541 | } | |
1da177e4 LT |
1542 | } |
1543 | ||
1544 | /* Start monitoring */ | |
1545 | w83781d_write_value(client, W83781D_REG_CONFIG, | |
1546 | (w83781d_read_value(client, | |
1547 | W83781D_REG_CONFIG) & 0xf7) | |
1548 | | 0x01); | |
1549 | } | |
1550 | ||
1551 | static struct w83781d_data *w83781d_update_device(struct device *dev) | |
1552 | { | |
1553 | struct i2c_client *client = to_i2c_client(dev); | |
1554 | struct w83781d_data *data = i2c_get_clientdata(client); | |
1555 | int i; | |
1556 | ||
9a61bf63 | 1557 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1558 | |
1559 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
1560 | || !data->valid) { | |
1561 | dev_dbg(dev, "Starting device update\n"); | |
1562 | ||
1563 | for (i = 0; i <= 8; i++) { | |
7c7a5304 | 1564 | if (data->type == w83783s && i == 1) |
1da177e4 LT |
1565 | continue; /* 783S has no in1 */ |
1566 | data->in[i] = | |
1567 | w83781d_read_value(client, W83781D_REG_IN(i)); | |
1568 | data->in_min[i] = | |
1569 | w83781d_read_value(client, W83781D_REG_IN_MIN(i)); | |
1570 | data->in_max[i] = | |
1571 | w83781d_read_value(client, W83781D_REG_IN_MAX(i)); | |
7c7a5304 | 1572 | if ((data->type != w83782d) |
1da177e4 LT |
1573 | && (data->type != w83627hf) && (i == 6)) |
1574 | break; | |
1575 | } | |
1576 | for (i = 1; i <= 3; i++) { | |
1577 | data->fan[i - 1] = | |
1578 | w83781d_read_value(client, W83781D_REG_FAN(i)); | |
1579 | data->fan_min[i - 1] = | |
1580 | w83781d_read_value(client, W83781D_REG_FAN_MIN(i)); | |
1581 | } | |
1582 | if (data->type != w83781d && data->type != as99127f) { | |
1583 | for (i = 1; i <= 4; i++) { | |
1584 | data->pwm[i - 1] = | |
1585 | w83781d_read_value(client, | |
1586 | W83781D_REG_PWM(i)); | |
1587 | if ((data->type != w83782d | |
1588 | || i2c_is_isa_client(client)) | |
1589 | && i == 2) | |
1590 | break; | |
1591 | } | |
1592 | /* Only PWM2 can be disabled */ | |
1593 | data->pwmenable[1] = (w83781d_read_value(client, | |
1594 | W83781D_REG_PWMCLK12) & 0x08) >> 3; | |
1595 | } | |
1596 | ||
1597 | data->temp = w83781d_read_value(client, W83781D_REG_TEMP(1)); | |
1598 | data->temp_max = | |
1599 | w83781d_read_value(client, W83781D_REG_TEMP_OVER(1)); | |
1600 | data->temp_max_hyst = | |
1601 | w83781d_read_value(client, W83781D_REG_TEMP_HYST(1)); | |
1602 | data->temp_add[0] = | |
1603 | w83781d_read_value(client, W83781D_REG_TEMP(2)); | |
1604 | data->temp_max_add[0] = | |
1605 | w83781d_read_value(client, W83781D_REG_TEMP_OVER(2)); | |
1606 | data->temp_max_hyst_add[0] = | |
1607 | w83781d_read_value(client, W83781D_REG_TEMP_HYST(2)); | |
7c7a5304 | 1608 | if (data->type != w83783s) { |
1da177e4 LT |
1609 | data->temp_add[1] = |
1610 | w83781d_read_value(client, W83781D_REG_TEMP(3)); | |
1611 | data->temp_max_add[1] = | |
1612 | w83781d_read_value(client, | |
1613 | W83781D_REG_TEMP_OVER(3)); | |
1614 | data->temp_max_hyst_add[1] = | |
1615 | w83781d_read_value(client, | |
1616 | W83781D_REG_TEMP_HYST(3)); | |
1617 | } | |
1618 | i = w83781d_read_value(client, W83781D_REG_VID_FANDIV); | |
7c7a5304 JD |
1619 | data->vid = i & 0x0f; |
1620 | data->vid |= (w83781d_read_value(client, | |
1621 | W83781D_REG_CHIPID) & 0x01) << 4; | |
1da177e4 LT |
1622 | data->fan_div[0] = (i >> 4) & 0x03; |
1623 | data->fan_div[1] = (i >> 6) & 0x03; | |
7c7a5304 JD |
1624 | data->fan_div[2] = (w83781d_read_value(client, |
1625 | W83781D_REG_PIN) >> 6) & 0x03; | |
1da177e4 LT |
1626 | if ((data->type != w83781d) && (data->type != as99127f)) { |
1627 | i = w83781d_read_value(client, W83781D_REG_VBAT); | |
1628 | data->fan_div[0] |= (i >> 3) & 0x04; | |
1629 | data->fan_div[1] |= (i >> 4) & 0x04; | |
7c7a5304 | 1630 | data->fan_div[2] |= (i >> 5) & 0x04; |
1da177e4 | 1631 | } |
1da177e4 | 1632 | if ((data->type == w83782d) || (data->type == w83627hf)) { |
c7f5d7ed JD |
1633 | data->alarms = w83781d_read_value(client, |
1634 | W83782D_REG_ALARM1) | |
1635 | | (w83781d_read_value(client, | |
1636 | W83782D_REG_ALARM2) << 8) | |
1637 | | (w83781d_read_value(client, | |
1638 | W83782D_REG_ALARM3) << 16); | |
1639 | } else if (data->type == w83783s) { | |
1640 | data->alarms = w83781d_read_value(client, | |
1641 | W83782D_REG_ALARM1) | |
1642 | | (w83781d_read_value(client, | |
1643 | W83782D_REG_ALARM2) << 8); | |
1644 | } else { | |
1645 | /* No real-time status registers, fall back to | |
1646 | interrupt status registers */ | |
1647 | data->alarms = w83781d_read_value(client, | |
1648 | W83781D_REG_ALARM1) | |
1649 | | (w83781d_read_value(client, | |
1650 | W83781D_REG_ALARM2) << 8); | |
1da177e4 LT |
1651 | } |
1652 | i = w83781d_read_value(client, W83781D_REG_BEEP_INTS2); | |
1653 | data->beep_enable = i >> 7; | |
1654 | data->beep_mask = ((i & 0x7f) << 8) + | |
1655 | w83781d_read_value(client, W83781D_REG_BEEP_INTS1); | |
1656 | if ((data->type != w83781d) && (data->type != as99127f)) { | |
1657 | data->beep_mask |= | |
1658 | w83781d_read_value(client, | |
1659 | W83781D_REG_BEEP_INTS3) << 16; | |
1660 | } | |
1661 | data->last_updated = jiffies; | |
1662 | data->valid = 1; | |
1663 | } | |
1664 | ||
9a61bf63 | 1665 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1666 | |
1667 | return data; | |
1668 | } | |
1669 | ||
1670 | static int __init | |
1671 | sensors_w83781d_init(void) | |
1672 | { | |
fde09509 JD |
1673 | int res; |
1674 | ||
1675 | res = i2c_add_driver(&w83781d_driver); | |
1676 | if (res) | |
1677 | return res; | |
1678 | ||
1679 | res = i2c_isa_add_driver(&w83781d_isa_driver); | |
1680 | if (res) { | |
1681 | i2c_del_driver(&w83781d_driver); | |
1682 | return res; | |
1683 | } | |
1684 | ||
1685 | return 0; | |
1da177e4 LT |
1686 | } |
1687 | ||
1688 | static void __exit | |
1689 | sensors_w83781d_exit(void) | |
1690 | { | |
fde09509 | 1691 | i2c_isa_del_driver(&w83781d_isa_driver); |
1da177e4 LT |
1692 | i2c_del_driver(&w83781d_driver); |
1693 | } | |
1694 | ||
1695 | MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " | |
1696 | "Philip Edelbrock <phil@netroedge.com>, " | |
1697 | "and Mark Studebaker <mdsxyz123@yahoo.com>"); | |
1698 | MODULE_DESCRIPTION("W83781D driver"); | |
1699 | MODULE_LICENSE("GPL"); | |
1700 | ||
1701 | module_init(sensors_w83781d_init); | |
1702 | module_exit(sensors_w83781d_exit); |