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fscscy.c @ 1224

Revision 1224, 29.4 KB (checked in by knobi, 12 years ago)
(MKN) Add workaround for kernels that don't have I2C_DRIVERID_FSCSCY defined
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1	/*
2	fscscy.c - Part of lm_sensors, Linux kernel modules for hardware
3	monitoring
4	Copyright (c) 2001 Hermann Jung <hej@odn.de>
5
6	This program is free software; you can redistribute it and/or modify
7	it under the terms of the GNU General Public License as published by
8	the Free Software Foundation; either version 2 of the License, or
9	(at your option) any later version.
10
11	This program is distributed in the hope that it will be useful,
12	but WITHOUT ANY WARRANTY; without even the implied warranty of
13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	GNU General Public License for more details.
15
16	You should have received a copy of the GNU General Public License
17	along with this program; if not, write to the Free Software
18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19	*/
20
21	/*
22	fujitsu siemens scylla chip,
23	module based on lm80.c, fscpos.c
24	Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
25	and Philip Edelbrock <phil@netroedge.com>
26	*/
27
28	#include <linux/version.h>
29	#include <linux/module.h>
30	#include <linux/slab.h>
31	#include <linux/proc_fs.h>
32	#include <linux/ioport.h>
33	#include <linux/sysctl.h>
34	#include <asm/errno.h>
35	#include <asm/io.h>
36	#include <linux/types.h>
37	#include <linux/i2c.h>
38	#include "version.h"
39	#include "sensors.h"
40	#include <linux/init.h>
41
42	/* temp. because wasn't in kernel 2.4.13 patch */
43	#ifndef I2C_DRIVERID_FSCSCY
44	#define I2C_DRIVERID_FSCSCY 1029
45	#endif
46
47	#ifdef MODULE_LICENSE
48	MODULE_LICENSE("GPL");
49	#endif
50
51	#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18)) \|\| \
52	(LINUX_VERSION_CODE == KERNEL_VERSION(2,3,0))
53	#define init_MUTEX(s) do { *(s) = MUTEX; } while(0)
54	#endif
55
56	#ifndef THIS_MODULE
57	#define THIS_MODULE NULL
58	#endif
59
60
61	/* Addresses to scan */
62	static unsigned short normal_i2c[] = { 0x73, SENSORS_I2C_END };
63	static unsigned short normal_i2c_range[] = { SENSORS_I2C_END };
64	static unsigned int normal_isa[] = { SENSORS_ISA_END };
65	static unsigned int normal_isa_range[] = { SENSORS_ISA_END };
66
67	/* Insmod parameters */
68	SENSORS_INSMOD_1(fscscy);
69
70	/* The FSCSCY registers */
71
72	/* chip identification */
73	#define FSCSCY_REG_IDENT_0 0x00
74	#define FSCSCY_REG_IDENT_1 0x01
75	#define FSCSCY_REG_IDENT_2 0x02
76	#define FSCSCY_REG_REVISION 0x03
77
78	/* global control and status */
79	#define FSCSCY_REG_EVENT_STATE 0x04
80	#define FSCSCY_REG_CONTROL 0x05
81
82	/* watchdog */
83	#define FSCSCY_REG_WDOG_PRESET 0x28
84	#define FSCSCY_REG_WDOG_STATE 0x23
85	#define FSCSCY_REG_WDOG_CONTROL 0x21
86
87	/* fan 0 */
88	#define FSCSCY_REG_FAN0_MIN 0x65
89	#define FSCSCY_REG_FAN0_ACT 0x6b
90	#define FSCSCY_REG_FAN0_STATE 0x62
91	#define FSCSCY_REG_FAN0_RIPPLE 0x6f
92
93	/* fan 1 */
94	#define FSCSCY_REG_FAN1_MIN FSCSCY_REG_FAN0_MIN
95	#define FSCSCY_REG_FAN1_ACT 0x6c
96	#define FSCSCY_REG_FAN1_STATE 0x61
97	#define FSCSCY_REG_FAN1_RIPPLE 0x6f
98
99	/* fan 2 */
100	#define FSCSCY_REG_FAN2_MIN 0x55
101	#define FSCSCY_REG_FAN2_ACT 0x0e
102	#define FSCSCY_REG_FAN2_STATE 0x0d
103	#define FSCSCY_REG_FAN2_RIPPLE 0x0f
104
105	/* fan 3 */
106	#define FSCSCY_REG_FAN3_MIN 0xa5
107	#define FSCSCY_REG_FAN3_ACT 0xab
108	#define FSCSCY_REG_FAN3_STATE 0xa2
109	#define FSCSCY_REG_FAN3_RIPPLE 0xaf
110
111	/* fan 4 */
112	#define FSCSCY_REG_FAN4_MIN FSCSCY_REG_FAN2_MIN
113	#define FSCSCY_REG_FAN4_ACT 0x5c
114	#define FSCSCY_REG_FAN4_STATE 0x52
115	#define FSCSCY_REG_FAN4_RIPPLE 0x0f
116
117	/* fan 5 */
118	#define FSCSCY_REG_FAN5_MIN FSCSCY_REG_FAN3_MIN
119	#define FSCSCY_REG_FAN5_ACT 0xbb
120	#define FSCSCY_REG_FAN5_STATE 0xb2
121	#define FSCSCY_REG_FAN5_RIPPLE 0xbf
122
123	/* voltage supervision */
124	#define FSCSCY_REG_VOLT_12 0x45
125	#define FSCSCY_REG_VOLT_5 0x42
126	#define FSCSCY_REG_VOLT_BATT 0x48
127
128	/* temperatures */
129	/* sensor 0 */
130	#define FSCSCY_REG_TEMP0_ACT 0x64
131	#define FSCSCY_REG_TEMP0_STATE 0x71
132	#define FSCSCY_REG_TEMP0_MAX 0x76
133
134	/* sensor 1 */
135	#define FSCSCY_REG_TEMP1_ACT 0xD0
136	#define FSCSCY_REG_TEMP1_STATE 0xD1
137	#define FSCSCY_REG_TEMP1_MAX 0xD6
138
139	/* sensor 2 */
140	#define FSCSCY_REG_TEMP2_ACT 0x32
141	#define FSCSCY_REG_TEMP2_STATE 0x81
142	#define FSCSCY_REG_TEMP2_MAX 0x86
143
144	/* sensor3 */
145	#define FSCSCY_REG_TEMP3_ACT 0x35
146	#define FSCSCY_REG_TEMP3_STATE 0x91
147	#define FSCSCY_REG_TEMP3_MAX 0x96
148
149	/* PCI Load */
150	#define FSCSCY_REG_PCILOAD 0x1a
151
152	/* Intrusion Sensor */
153	#define FSCSCY_REG_INTR_STATE 0x13
154	#define FSCSCY_REG_INTR_CTRL 0x12
155
156	/* Conversions. Rounding and limit checking is only done on the TO_REG
157	variants. Note that you should be a bit careful with which arguments
158	these macros are called: arguments may be evaluated more than once.
159	Fixing this is just not worth it. */
160
161	#define IN_TO_REG(val,nr) (SENSORS_LIMIT((val),0,255))
162	#define IN_FROM_REG(val,nr) (val)
163
164	/* Initial limits */
165
166	#ifdef MODULE
167	extern int init_module(void);
168	extern int cleanup_module(void);
169	#endif /* MODULE */
170
171	/* For each registered FSCSCY, we need to keep some data in memory. That
172	data is pointed to by fscscy_list[NR]->data. The structure itself is
173	dynamically allocated, at the same time when a new fscscy client is
174	allocated. */
175	struct fscscy_data {
176	int sysctl_id;
177
178	struct semaphore update_lock;
179	char valid; /* !=0 if following fields are valid */
180	unsigned long last_updated; /* In jiffies */
181
182	u8 revision; /* revision of chip */
183	u8 global_event; /* global event status */
184	u8 global_control; /* global control register */
185	u8 watchdog[3]; /* watchdog */
186	u8 volt[3]; /* 12, 5, battery current */
187	u8 temp_act[4]; /* temperature */
188	u8 temp_status[4]; /* status of sensor */
189	u8 temp_max[4]; /* maximum of sensor */
190	u8 fan_act[6]; /* fans revolutions per second */
191	u8 fan_status[6]; /* fan status */
192	u8 fan_min[6]; /* fan min value for rps */
193	u8 fan_ripple[6]; /* divider for rps */
194	u8 pciload; /* PCILoad value */
195	u8 intr_status; /* Intrusion Status */
196	u8 intr_control; /* Intrusion Control */
197	};
198
199
200	#ifdef MODULE
201	static
202	#else
203	extern
204	#endif
205	int __init sensors_fscscy_init(void);
206	static int __init fscscy_cleanup(void);
207
208	static int fscscy_attach_adapter(struct i2c_adapter *adapter);
209	static int fscscy_detect(struct i2c_adapter *adapter, int address,
210	unsigned short flags, int kind);
211	static int fscscy_detach_client(struct i2c_client *client);
212	static int fscscy_command(struct i2c_client *client, unsigned int cmd,
213	void *arg);
214	static void fscscy_inc_use(struct i2c_client *client);
215	static void fscscy_dec_use(struct i2c_client *client);
216
217	static int fscscy_read_value(struct i2c_client *client, u8 register);
218	static int fscscy_write_value(struct i2c_client *client, u8 register,
219	u8 value);
220	static void fscscy_update_client(struct i2c_client *client);
221	static void fscscy_init_client(struct i2c_client *client);
222
223
224	static void fscscy_in(struct i2c_client *client, int operation, int ctl_name,
225	int nrels_mag, long results);
226	static void fscscy_fan(struct i2c_client *client, int operation,
227	int ctl_name, int nrels_mag, long results);
228	static void fscscy_fan_internal(struct i2c_client *client, int operation,
229	int ctl_name, int nrels_mag, long results,
230	int nr, int reg_state, int reg_min, int res_ripple);
231	static void fscscy_temp(struct i2c_client *client, int operation,
232	int ctl_name, int nrels_mag, long results);
233	static void fscscy_volt(struct i2c_client *client, int operation,
234	int ctl_name, int nrels_mag, long results);
235	static void fscscy_wdog(struct i2c_client *client, int operation,
236	int ctl_name, int nrels_mag, long results);
237	static void fscscy_pciload(struct i2c_client *client, int operation,
238	int ctl_name, int nrels_mag, long results);
239	static void fscscy_intrusion(struct i2c_client *client, int operation,
240	int ctl_name, int nrels_mag, long results);
241
242	static int fscscy_id = 0;
243
244	static struct i2c_driver fscscy_driver = {
245	/* name */ "FSCSCY sensor driver",
246	/* id */ I2C_DRIVERID_FSCSCY,
247	/* flags */ I2C_DF_NOTIFY,
248	/* attach_adapter */ &fscscy_attach_adapter,
249	/* detach_client */ &fscscy_detach_client,
250	/* command */ &fscscy_command,
251	/* inc_use */ &fscscy_inc_use,
252	/* dec_use */ &fscscy_dec_use
253	};
254
255	/* Used by fscscy_init/cleanup */
256	static int __initdata fscscy_initialized = 0;
257
258	/* The /proc/sys entries */
259	/* These files are created for each detected FSCSCY. This is just a template;
260	though at first sight, you might think we could use a statically
261	allocated list, we need some way to get back to the parent - which
262	is done through one of the 'extra' fields which are initialized
263	when a new copy is allocated. */
264	static ctl_table fscscy_dir_table_template[] = {
265	{FSCSCY_SYSCTL_REV, "rev", NULL, 0, 0444, NULL, &i2c_proc_real,
266	&i2c_sysctl_real, NULL, &fscscy_in},
267	{FSCSCY_SYSCTL_EVENT, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
268	&i2c_sysctl_real, NULL, &fscscy_in},
269	{FSCSCY_SYSCTL_CONTROL, "control", NULL, 0, 0644, NULL, &i2c_proc_real,
270	&i2c_sysctl_real, NULL, &fscscy_in},
271	{FSCSCY_SYSCTL_TEMP0, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
272	&i2c_sysctl_real, NULL, &fscscy_temp},
273	{FSCSCY_SYSCTL_TEMP1, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real,
274	&i2c_sysctl_real, NULL, &fscscy_temp},
275	{FSCSCY_SYSCTL_TEMP2, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real,
276	&i2c_sysctl_real, NULL, &fscscy_temp},
277	{FSCSCY_SYSCTL_TEMP3, "temp4", NULL, 0, 0644, NULL, &i2c_proc_real,
278	&i2c_sysctl_real, NULL, &fscscy_temp},
279	{FSCSCY_SYSCTL_VOLT0, "in0", NULL, 0, 0444, NULL, &i2c_proc_real,
280	&i2c_sysctl_real, NULL, &fscscy_volt},
281	{FSCSCY_SYSCTL_VOLT1, "in1", NULL, 0, 0444, NULL, &i2c_proc_real,
282	&i2c_sysctl_real, NULL, &fscscy_volt},
283	{FSCSCY_SYSCTL_VOLT2, "in2", NULL, 0, 0444, NULL, &i2c_proc_real,
284	&i2c_sysctl_real, NULL, &fscscy_volt},
285	{FSCSCY_SYSCTL_FAN0, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
286	&i2c_sysctl_real, NULL, &fscscy_fan},
287	{FSCSCY_SYSCTL_FAN1, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
288	&i2c_sysctl_real, NULL, &fscscy_fan},
289	{FSCSCY_SYSCTL_FAN2, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real,
290	&i2c_sysctl_real, NULL, &fscscy_fan},
291	{FSCSCY_SYSCTL_FAN3, "fan4", NULL, 0, 0644, NULL, &i2c_proc_real,
292	&i2c_sysctl_real, NULL, &fscscy_fan},
293	{FSCSCY_SYSCTL_FAN4, "fan5", NULL, 0, 0644, NULL, &i2c_proc_real,
294	&i2c_sysctl_real, NULL, &fscscy_fan},
295	{FSCSCY_SYSCTL_FAN5, "fan6", NULL, 0, 0644, NULL, &i2c_proc_real,
296	&i2c_sysctl_real, NULL, &fscscy_fan},
297	{FSCSCY_SYSCTL_WDOG, "wdog", NULL, 0, 0644, NULL, &i2c_proc_real,
298	&i2c_sysctl_real, NULL, &fscscy_wdog},
299	{FSCSCY_SYSCTL_PCILOAD, "pciload", NULL, 0, 0444, NULL, &i2c_proc_real,
300	&i2c_sysctl_real, NULL, &fscscy_pciload},
301	{FSCSCY_SYSCTL_INTRUSION, "intrusion", NULL, 0, 0644, NULL, &i2c_proc_real,
302	&i2c_sysctl_real, NULL, &fscscy_intrusion},
303	{0}
304	};
305
306	int fscscy_attach_adapter(struct i2c_adapter *adapter)
307	{
308	return i2c_detect(adapter, &addr_data, fscscy_detect);
309	}
310
311	int fscscy_detect(struct i2c_adapter *adapter, int address,
312	unsigned short flags, int kind)
313	{
314	int i;
315	struct i2c_client *new_client;
316	struct fscscy_data *data;
317	int err = 0;
318	const char type_name, client_name;
319
320	/* Make sure we aren't probing the ISA bus!! This is just a safety check
321	at this moment; i2c_detect really won't call us. */
322	#ifdef DEBUG
323	if (i2c_is_isa_adapter(adapter)) {
324	printk
325	("fscscy.o: fscscy_detect called for an ISA bus adapter?!?\n");
326	return 0;
327	}
328	#endif
329
330	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
331	goto ERROR0;
332
333	/* OK. For now, we presume we have a valid client. We now create the
334	client structure, even though we cannot fill it completely yet.
335	But it allows us to access fscscy_{read,write}_value. */
336	if (!(new_client = kmalloc(sizeof(struct i2c_client) +
337	sizeof(struct fscscy_data),
338	GFP_KERNEL))) {
339	err = -ENOMEM;
340	goto ERROR0;
341	}
342
343	data = (struct fscscy_data *) (new_client + 1);
344	new_client->addr = address;
345	new_client->data = data;
346	new_client->adapter = adapter;
347	new_client->driver = &fscscy_driver;
348	new_client->flags = 0;
349
350	/* Do the remaining detection unless force or force_fscscy parameter */
351	if (kind < 0) {
352	if (fscscy_read_value(new_client, FSCSCY_REG_IDENT_0) != 0x53)
353	goto ERROR1;
354	if (fscscy_read_value(new_client, FSCSCY_REG_IDENT_1) != 0x43)
355	goto ERROR1;
356	if (fscscy_read_value(new_client, FSCSCY_REG_IDENT_2) != 0x59)
357	goto ERROR1;
358	}
359
360	kind = fscscy;
361
362	type_name = "fscscy";
363	client_name = "fsc scylla chip";
364
365	/* Fill in the remaining client fields and put it into the global list */
366	strcpy(new_client->name, client_name);
367
368	new_client->id = fscscy_id++;
369	data->valid = 0;
370	init_MUTEX(&data->update_lock);
371
372	/* Tell the I2C layer a new client has arrived */
373	if ((err = i2c_attach_client(new_client)))
374	goto ERROR3;
375
376	/* Register a new directory entry with module sensors */
377	if ((i = i2c_register_entry(new_client, type_name,
378	fscscy_dir_table_template,
379	THIS_MODULE)) < 0) {
380	err = i;
381	goto ERROR4;
382	}
383	data->sysctl_id = i;
384
385	fscscy_init_client(new_client);
386	return 0;
387
388	/* OK, this is not exactly good programming practice, usually. But it is
389	very code-efficient in this case. */
390	ERROR4:
391	i2c_detach_client(new_client);
392	ERROR3:
393	ERROR1:
394	kfree(new_client);
395	ERROR0:
396	return err;
397	}
398
399	int fscscy_detach_client(struct i2c_client *client)
400	{
401	int err;
402
403	i2c_deregister_entry(((struct fscscy_data *) (client->data))->
404	sysctl_id);
405
406	if ((err = i2c_detach_client(client))) {
407	printk
408	("fscscy.o: Client deregistration failed, client not detached.\n");
409	return err;
410	}
411
412	kfree(client);
413
414	return 0;
415	}
416
417	/* No commands defined yet */
418	int fscscy_command(struct i2c_client client, unsigned int cmd, void arg)
419	{
420	return 0;
421	}
422
423	void fscscy_inc_use(struct i2c_client *client)
424	{
425	#ifdef MODULE
426	MOD_INC_USE_COUNT;
427	#endif
428	}
429
430	void fscscy_dec_use(struct i2c_client *client)
431	{
432	#ifdef MODULE
433	MOD_DEC_USE_COUNT;
434	#endif
435	}
436
437
438	int fscscy_read_value(struct i2c_client *client, u8 reg)
439	{
440	#ifdef DEBUG
441	printk("fscscy: read reg 0x%02x\n",reg);
442	#endif
443	return i2c_smbus_read_byte_data(client, reg);
444	}
445
446	int fscscy_write_value(struct i2c_client *client, u8 reg, u8 value)
447	{
448	#ifdef DEBUG
449	printk("fscscy: write reg 0x%02x, val 0x%02x\n",reg, value);
450	#endif
451	return i2c_smbus_write_byte_data(client, reg, value);
452	}
453
454	/* Called when we have found a new FSCSCY. It should set limits, etc. */
455	void fscscy_init_client(struct i2c_client *client)
456	{
457	struct fscscy_data *data = client->data;
458
459	/* read revision from chip */
460	data->revision = fscscy_read_value(client,FSCSCY_REG_REVISION);
461	/* setup missing fan2_min value */
462	/* data->fan_min[2] = 0xff; */
463	}
464
465	void fscscy_update_client(struct i2c_client *client)
466	{
467	struct fscscy_data *data = client->data;
468
469	down(&data->update_lock);
470
471	if ((jiffies - data->last_updated > 2 * HZ) \|\|
472	(jiffies < data->last_updated) \|\| !data->valid) {
473
474	#ifdef DEBUG
475	printk("Starting fscscy update\n");
476	#endif
477	data->temp_act[0] = fscscy_read_value(client, FSCSCY_REG_TEMP0_ACT);
478	data->temp_act[1] = fscscy_read_value(client, FSCSCY_REG_TEMP1_ACT);
479	data->temp_act[2] = fscscy_read_value(client, FSCSCY_REG_TEMP2_ACT);
480	data->temp_act[3] = fscscy_read_value(client, FSCSCY_REG_TEMP3_ACT);
481	data->temp_status[0] = fscscy_read_value(client, FSCSCY_REG_TEMP0_STATE);
482	data->temp_status[1] = fscscy_read_value(client, FSCSCY_REG_TEMP1_STATE);
483	data->temp_status[2] = fscscy_read_value(client, FSCSCY_REG_TEMP2_STATE);
484	data->temp_status[3] = fscscy_read_value(client, FSCSCY_REG_TEMP3_STATE);
485	data->temp_max[0] = fscscy_read_value(client, FSCSCY_REG_TEMP0_MAX);
486	data->temp_max[1] = fscscy_read_value(client, FSCSCY_REG_TEMP1_MAX);
487	data->temp_max[2] = fscscy_read_value(client, FSCSCY_REG_TEMP2_MAX);
488	data->temp_max[3] = fscscy_read_value(client, FSCSCY_REG_TEMP3_MAX);
489
490	data->volt[0] = fscscy_read_value(client, FSCSCY_REG_VOLT_12);
491	data->volt[1] = fscscy_read_value(client, FSCSCY_REG_VOLT_5);
492	data->volt[2] = fscscy_read_value(client, FSCSCY_REG_VOLT_BATT);
493
494	data->fan_act[0] = fscscy_read_value(client, FSCSCY_REG_FAN0_ACT);
495	data->fan_act[1] = fscscy_read_value(client, FSCSCY_REG_FAN1_ACT);
496	data->fan_act[2] = fscscy_read_value(client, FSCSCY_REG_FAN2_ACT);
497	data->fan_act[3] = fscscy_read_value(client, FSCSCY_REG_FAN3_ACT);
498	data->fan_act[4] = fscscy_read_value(client, FSCSCY_REG_FAN4_ACT);
499	data->fan_act[5] = fscscy_read_value(client, FSCSCY_REG_FAN5_ACT);
500	data->fan_status[0] = fscscy_read_value(client, FSCSCY_REG_FAN0_STATE);
501	data->fan_status[1] = fscscy_read_value(client, FSCSCY_REG_FAN1_STATE);
502	data->fan_status[2] = fscscy_read_value(client, FSCSCY_REG_FAN2_STATE);
503	data->fan_status[3] = fscscy_read_value(client, FSCSCY_REG_FAN3_STATE);
504	data->fan_status[4] = fscscy_read_value(client, FSCSCY_REG_FAN4_STATE);
505	data->fan_status[5] = fscscy_read_value(client, FSCSCY_REG_FAN5_STATE);
506	data->fan_min[0] = fscscy_read_value(client, FSCSCY_REG_FAN0_MIN);
507	data->fan_min[1] = fscscy_read_value(client, FSCSCY_REG_FAN1_MIN);
508	data->fan_min[2] = fscscy_read_value(client, FSCSCY_REG_FAN2_MIN);
509	data->fan_min[3] = fscscy_read_value(client, FSCSCY_REG_FAN3_MIN);
510	data->fan_min[4] = fscscy_read_value(client, FSCSCY_REG_FAN4_MIN);
511	data->fan_min[5] = fscscy_read_value(client, FSCSCY_REG_FAN5_MIN);
512	data->fan_ripple[0] = fscscy_read_value(client, FSCSCY_REG_FAN0_RIPPLE);
513	data->fan_ripple[1] = fscscy_read_value(client, FSCSCY_REG_FAN1_RIPPLE);
514	data->fan_ripple[2] = fscscy_read_value(client, FSCSCY_REG_FAN2_RIPPLE);
515	data->fan_ripple[3] = fscscy_read_value(client, FSCSCY_REG_FAN3_RIPPLE);
516	data->fan_ripple[4] = fscscy_read_value(client, FSCSCY_REG_FAN4_RIPPLE);
517	data->fan_ripple[5] = fscscy_read_value(client, FSCSCY_REG_FAN5_RIPPLE);
518
519	data->watchdog[0] = fscscy_read_value(client, FSCSCY_REG_WDOG_PRESET);
520	data->watchdog[1] = fscscy_read_value(client, FSCSCY_REG_WDOG_STATE);
521	data->watchdog[2] = fscscy_read_value(client, FSCSCY_REG_WDOG_CONTROL);
522
523	data->global_event = fscscy_read_value(client, FSCSCY_REG_EVENT_STATE);
524	data->global_control = fscscy_read_value(client, FSCSCY_REG_CONTROL);
525	data->pciload = fscscy_read_value(client, FSCSCY_REG_PCILOAD);
526	data->intr_status = fscscy_read_value(client, FSCSCY_REG_INTR_STATE);
527	data->intr_control = fscscy_read_value(client, FSCSCY_REG_INTR_CTRL);
528
529	data->last_updated = jiffies;
530	data->valid = 1;
531	}
532
533	up(&data->update_lock);
534	}
535
536
537	/* The next few functions are the call-back functions of the /proc/sys and
538	sysctl files. Which function is used is defined in the ctl_table in
539	the extra1 field.
540	Each function must return the magnitude (power of 10 to divide the date
541	with) if it is called with operation==SENSORS_PROC_REAL_INFO. It must
542	put a maximum of *nrels elements in results reflecting the data of this
543	file, and set *nrels to the number it actually put in it, if operation==
544	SENSORS_PROC_REAL_READ. Finally, it must get upto *nrels elements from
545	results and write them to the chip, if operations==SENSORS_PROC_REAL_WRITE.
546	Note that on SENSORS_PROC_REAL_READ, I do not check whether results is
547	large enough (by checking the incoming value of *nrels). This is not very
548	good practice, but as long as you put less than about 5 values in results,
549	you can assume it is large enough. */
550	void fscscy_in(struct i2c_client *client, int operation, int ctl_name,
551	int nrels_mag, long results)
552	{
553	struct fscscy_data *data = client->data;
554
555	if (operation == SENSORS_PROC_REAL_INFO)
556	*nrels_mag = 0;
557	else if (operation == SENSORS_PROC_REAL_READ) {
558	fscscy_update_client(client);
559	switch(ctl_name) {
560	case FSCSCY_SYSCTL_REV:
561	results[0] = data->revision ;
562	break;
563	case FSCSCY_SYSCTL_EVENT:
564	results[0] = data->global_event & 0x9f; /* MKN */
565	break;
566	case FSCSCY_SYSCTL_CONTROL:
567	results[0] = data->global_control & 0x19; /* MKN */
568	break;
569	default:
570	printk("fscscy: ctl_name %d not supported\n",
571	ctl_name);
572	*nrels_mag = 0;
573	return;
574	}
575	*nrels_mag = 1;
576	} else if (operation == SENSORS_PROC_REAL_WRITE) {
577	if((ctl_name == FSCSCY_SYSCTL_CONTROL) && (*nrels_mag >= 1)) {
578	data->global_control = (data->global_control & 0x18) \| (results[0] & 0x01); /* MKN */
579	printk("fscscy: writing 0x%02x to global_control\n",
580	data->global_control);
581	fscscy_write_value(client,FSCSCY_REG_CONTROL,
582	data->global_control);
583	}
584	else
585	printk("fscscy: writing to chip not supported\n");
586	}
587	}
588
589	#define TEMP_FROM_REG(val) (val-128)
590
591
592	void fscscy_temp(struct i2c_client *client, int operation, int ctl_name,
593	int nrels_mag, long results)
594	{
595	struct fscscy_data *data = client->data;
596
597	if (operation == SENSORS_PROC_REAL_INFO)
598	*nrels_mag = 0;
599	else if (operation == SENSORS_PROC_REAL_READ) {
600	fscscy_update_client(client);
601	switch(ctl_name) {
602	case FSCSCY_SYSCTL_TEMP0:
603	results[0] = data->temp_status[0] & 0x03;
604	results[1] = TEMP_FROM_REG(data->temp_act[0]);
605	results[2] = TEMP_FROM_REG(data->temp_max[0]);
606	break;
607	case FSCSCY_SYSCTL_TEMP1:
608	results[0] = data->temp_status[1] & 0x03;
609	results[1] = TEMP_FROM_REG(data->temp_act[1]);
610	results[2] = TEMP_FROM_REG(data->temp_max[1]);
611	break;
612	case FSCSCY_SYSCTL_TEMP2:
613	results[0] = data->temp_status[2] & 0x03;
614	results[1] = TEMP_FROM_REG(data->temp_act[2]);
615	results[2] = TEMP_FROM_REG(data->temp_max[2]);
616	break;
617	case FSCSCY_SYSCTL_TEMP3:
618	results[0] = data->temp_status[3] & 0x03;
619	results[1] = TEMP_FROM_REG(data->temp_act[3]);
620	results[2] = TEMP_FROM_REG(data->temp_max[3]);
621	break;
622	default:
623	printk("fscscy: ctl_name %d not supported\n",
624	ctl_name);
625	*nrels_mag = 0;
626	return;
627	}
628	*nrels_mag = 3;
629	} else if (operation == SENSORS_PROC_REAL_WRITE) {
630	if(*nrels_mag >= 1) {
631	switch(ctl_name) {
632	case FSCSCY_SYSCTL_TEMP0:
633	data->temp_status[0] =
634	(data->temp_status[0] & ~0x02)
635	\| (results[0] & 0x02);
636	printk("fscscy: writing value 0x%02x "
637	"to temp0_status\n",
638	data->temp_status[0]);
639	fscscy_write_value(client,
640	FSCSCY_REG_TEMP0_STATE,
641	data->temp_status[0] & 0x02);
642	break;
643	case FSCSCY_SYSCTL_TEMP1:
644	data->temp_status[1] = (data->temp_status[1] & ~0x02) \| (results[0] & 0x02);
645	printk("fscscy: writing value 0x%02x to temp1_status\n", data->temp_status[1]);
646	fscscy_write_value(client,FSCSCY_REG_TEMP1_STATE,
647	data->temp_status[1] & 0x02);
648	break;
649	case FSCSCY_SYSCTL_TEMP2:
650	data->temp_status[2] = (data->temp_status[2] & ~0x02) \| (results[0] & 0x02);
651	printk("fscscy: writing value 0x%02x to temp2_status\n", data->temp_status[2]);
652	fscscy_write_value(client,FSCSCY_REG_TEMP2_STATE,
653	data->temp_status[2] & 0x02);
654	break;
655	case FSCSCY_SYSCTL_TEMP3:
656	data->temp_status[3] = (data->temp_status[3] & ~0x02) \| (results[0] & 0x02);
657	printk("fscscy: writing value 0x%02x to temp3_status\n", data->temp_status[3]);
658	fscscy_write_value(client,FSCSCY_REG_TEMP3_STATE,
659	data->temp_status[3] & 0x02);
660	break;
661	default:
662	printk("fscscy: ctl_name %d not supported\n",ctl_name);
663	}
664	}
665	else
666	printk("fscscy: writing to chip not supported\n");
667	}
668	}
669
670	#define VOLT_FROM_REG(val,mult) (val*mult/255)
671
672	void fscscy_volt(struct i2c_client *client, int operation, int ctl_name,
673	int nrels_mag, long results)
674	{
675	struct fscscy_data *data = client->data;
676	if (operation == SENSORS_PROC_REAL_INFO)
677	*nrels_mag = 2;
678	else if (operation == SENSORS_PROC_REAL_READ) {
679	fscscy_update_client(client);
680	switch(ctl_name) {
681	case FSCSCY_SYSCTL_VOLT0:
682	results[0] = VOLT_FROM_REG(data->volt[0],1420);
683	break;
684	case FSCSCY_SYSCTL_VOLT1:
685	results[0] = VOLT_FROM_REG(data->volt[1],660);
686	break;
687	case FSCSCY_SYSCTL_VOLT2:
688	results[0] = VOLT_FROM_REG(data->volt[2],330);
689	break;
690	default:
691	printk("fscscy: ctl_name %d not supported\n",
692	ctl_name);
693	*nrels_mag = 0;
694	return;
695	}
696	*nrels_mag = 1;
697	} else if (operation == SENSORS_PROC_REAL_WRITE) {
698	printk("fscscy: writing to chip not supported\n");
699	}
700	}
701
702	void fscscy_fan(struct i2c_client *client, int operation, int ctl_name,
703	int nrels_mag, long results)
704	{
705
706	switch(ctl_name) {
707	case FSCSCY_SYSCTL_FAN0:
708	fscscy_fan_internal(client,operation,ctl_name,nrels_mag,results,
709	0,FSCSCY_REG_FAN0_STATE,FSCSCY_REG_FAN0_MIN,
710	FSCSCY_REG_FAN0_RIPPLE);
711	break;
712	case FSCSCY_SYSCTL_FAN1:
713	fscscy_fan_internal(client,operation,ctl_name,nrels_mag,results,
714	1,FSCSCY_REG_FAN1_STATE,FSCSCY_REG_FAN1_MIN,
715	FSCSCY_REG_FAN1_RIPPLE);
716	break;
717	case FSCSCY_SYSCTL_FAN2:
718	fscscy_fan_internal(client,operation,ctl_name,nrels_mag,results,
719	2,FSCSCY_REG_FAN2_STATE,FSCSCY_REG_FAN2_MIN,
720	FSCSCY_REG_FAN2_RIPPLE);
721	break;
722	case FSCSCY_SYSCTL_FAN3:
723	fscscy_fan_internal(client,operation,ctl_name,nrels_mag,results,
724	3,FSCSCY_REG_FAN3_STATE,FSCSCY_REG_FAN3_MIN,
725	FSCSCY_REG_FAN3_RIPPLE);
726	break;
727	case FSCSCY_SYSCTL_FAN4:
728	fscscy_fan_internal(client,operation,ctl_name,nrels_mag,results,
729	4,FSCSCY_REG_FAN4_STATE,FSCSCY_REG_FAN4_MIN,
730	FSCSCY_REG_FAN4_RIPPLE);
731	break;
732	case FSCSCY_SYSCTL_FAN5:
733	fscscy_fan_internal(client,operation,ctl_name,nrels_mag,results,
734	5,FSCSCY_REG_FAN5_STATE,FSCSCY_REG_FAN5_MIN,
735	FSCSCY_REG_FAN5_RIPPLE);
736	break;
737	default:
738	printk("fscscy: illegal fan nr %d\n",ctl_name);
739	}
740	}
741
742	#define RPM_FROM_REG(val) (val*60)
743
744	void fscscy_fan_internal(struct i2c_client *client, int operation, int ctl_name,
745	int nrels_mag, long results, int nr,
746	int reg_state, int reg_min, int reg_ripple )
747	{
748	struct fscscy_data *data = client->data;
749
750	if (operation == SENSORS_PROC_REAL_INFO)
751	*nrels_mag = 0;
752	else if (operation == SENSORS_PROC_REAL_READ) {
753	fscscy_update_client(client);
754	results[0] = data->fan_status[nr] & 0x0f; /* MKN */
755	results[1] = data->fan_min[nr];
756	results[2] = data->fan_ripple[nr] & 0x03;
757	results[3] = RPM_FROM_REG(data->fan_act[nr]);
758	*nrels_mag = 4;
759	} else if (operation == SENSORS_PROC_REAL_WRITE) {
760	if(*nrels_mag >= 1) {
761	data->fan_status[nr] = (data->fan_status[nr] & 0x0b) \| results[0] & 0x04; /* MKN */
762	printk("fscscy: writing value 0x%02x to fan%d_status\n",
763	data->fan_status[nr],nr);
764	fscscy_write_value(client,reg_state,
765	data->fan_status[nr]);
766	}
767	if((nrels_mag >= 2) && (nr != 2) && (nr != 4)) { / MIN Speed for Fan 2/4 is not supported */
768	data->fan_min[nr] = results[1];
769	printk("fscscy: writing value 0x%02x to fan%d_min\n",
770	data->fan_min[nr],nr);
771	fscscy_write_value(client,reg_min,
772	data->fan_min[nr]);
773	}
774	if(*nrels_mag >= 3) {
775	if((results[2] & 0x03) == 0) {
776	printk("fscscy: fan%d ripple 0 not allowed\n",nr);
777	return;
778	}
779	data->fan_ripple[nr] = results[2] & 0x03;
780	printk("fscscy: writing value 0x%02x to fan%d_ripple\n",
781	data->fan_ripple[nr],nr);
782	fscscy_write_value(client,reg_ripple,
783	data->fan_ripple[nr]);
784	}
785	}
786	}
787
788	void fscscy_wdog(struct i2c_client *client, int operation, int ctl_name,
789	int nrels_mag, long results)
790	{
791	struct fscscy_data *data = client->data;
792
793	if (operation == SENSORS_PROC_REAL_INFO)
794	*nrels_mag = 0;
795	else if (operation == SENSORS_PROC_REAL_READ) {
796	fscscy_update_client(client);
797	results[0] = data->watchdog[0] ;
798	results[1] = data->watchdog[1] & 0x02;
799	results[2] = data->watchdog[2] & 0xb0;
800	*nrels_mag = 3;
801	} else if (operation == SENSORS_PROC_REAL_WRITE) {
802	if (*nrels_mag >= 1) {
803	data->watchdog[0] = results[0] & 0xff;
804	printk("fscscy: writing value 0x%02x to wdog_preset\n",
805	data->watchdog[0]);
806	fscscy_write_value(client,FSCSCY_REG_WDOG_PRESET,
807	data->watchdog[0]);
808	}
809	if (*nrels_mag >= 2) {
810	data->watchdog[1] = results[1] & 0x02;
811	printk("fscscy: writing value 0x%02x to wdog_state\n",
812	data->watchdog[1]);
813	fscscy_write_value(client,FSCSCY_REG_WDOG_STATE,
814	data->watchdog[1]);
815	}
816	if (*nrels_mag >= 3) {
817	data->watchdog[2] = results[2] & 0xb0;
818	printk("fscscy: writing value 0x%02x to wdog_control\n",
819	data->watchdog[2]);
820	fscscy_write_value(client,FSCSCY_REG_WDOG_CONTROL,
821	data->watchdog[2]);
822	}
823	}
824	}
825
826	void fscscy_pciload(struct i2c_client *client, int operation, int ctl_name,
827	int nrels_mag, long results)
828	{
829	struct fscscy_data *data = client->data;
830	if (operation == SENSORS_PROC_REAL_INFO)
831	*nrels_mag = 0;
832	else if (operation == SENSORS_PROC_REAL_READ) {
833	fscscy_update_client(client);
834	results[0] = data->pciload;
835	*nrels_mag = 1;
836	} else if (operation == SENSORS_PROC_REAL_WRITE) {
837	printk("fscscy: writing to chip not supported\n");
838	}
839	}
840
841	void fscscy_intrusion(struct i2c_client *client, int operation, int ctl_name,
842	int nrels_mag, long results)
843	{
844	struct fscscy_data *data = client->data;
845
846	if (operation == SENSORS_PROC_REAL_INFO)
847	*nrels_mag = 0;
848	else if (operation == SENSORS_PROC_REAL_READ) {
849	fscscy_update_client(client);
850	results[0] = data->intr_control & 0x80;
851	results[1] = data->intr_status & 0xc0;
852	*nrels_mag = 2;
853	} else if (operation == SENSORS_PROC_REAL_WRITE) {
854	if (*nrels_mag >= 1) {
855	data->intr_control = results[0] & 0x80;
856	printk("fscscy: writing value 0x%02x to intr_control\n",
857	data->intr_control);
858	fscscy_write_value(client,FSCSCY_REG_INTR_CTRL,
859	data->intr_control);
860	}
861	}
862	}
863
864	int __init sensors_fscscy_init(void)
865	{
866	int res;
867
868	printk("fscscy.o version %s (%s)\n", LM_VERSION, LM_DATE);
869	fscscy_initialized = 0;
870
871	if ((res = i2c_add_driver(&fscscy_driver))) {
872	printk
873	("fscscy.o: Driver registration failed, module not inserted.\n");
874	fscscy_cleanup();
875	return res;
876	}
877	fscscy_initialized++;
878	return 0;
879	}
880
881	int __init fscscy_cleanup(void)
882	{
883	int res;
884
885	if (fscscy_initialized >= 1) {
886	if ((res = i2c_del_driver(&fscscy_driver))) {
887	printk
888	("fscscy.o: Driver deregistration failed, module not removed.\n");
889	return res;
890	}
891	fscscy_initialized--;
892	}
893	return 0;
894	}
895
896	EXPORT_NO_SYMBOLS;
897
898	#ifdef MODULE
899
900	MODULE_AUTHOR
901	("Hermann Jung <hej@odn.de> based on work from Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock <phil@netroedge.com>");
902	MODULE_DESCRIPTION("fujitsu siemens scylla chip driver");
903
904	int init_module(void)
905	{
906	return sensors_fscscy_init();
907	}
908
909	int cleanup_module(void)
910	{
911	return fscscy_cleanup();
912	}
913
914	#endif /* MODULE */

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