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path: root/drivers/acpi/ec.c
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-rw-r--r--drivers/acpi/ec.c869
1 files changed, 389 insertions, 480 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 31067a0a3671..7e1a445955bc 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -38,130 +38,112 @@
38#include <acpi/actypes.h> 38#include <acpi/actypes.h>
39 39
40#define _COMPONENT ACPI_EC_COMPONENT 40#define _COMPONENT ACPI_EC_COMPONENT
41ACPI_MODULE_NAME ("acpi_ec") 41ACPI_MODULE_NAME("acpi_ec")
42
43#define ACPI_EC_COMPONENT 0x00100000 42#define ACPI_EC_COMPONENT 0x00100000
44#define ACPI_EC_CLASS "embedded_controller" 43#define ACPI_EC_CLASS "embedded_controller"
45#define ACPI_EC_HID "PNP0C09" 44#define ACPI_EC_HID "PNP0C09"
46#define ACPI_EC_DRIVER_NAME "ACPI Embedded Controller Driver" 45#define ACPI_EC_DRIVER_NAME "ACPI Embedded Controller Driver"
47#define ACPI_EC_DEVICE_NAME "Embedded Controller" 46#define ACPI_EC_DEVICE_NAME "Embedded Controller"
48#define ACPI_EC_FILE_INFO "info" 47#define ACPI_EC_FILE_INFO "info"
49
50
51#define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */ 48#define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */
52#define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */ 49#define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */
53#define ACPI_EC_FLAG_BURST 0x10 /* burst mode */ 50#define ACPI_EC_FLAG_BURST 0x10 /* burst mode */
54#define ACPI_EC_FLAG_SCI 0x20 /* EC-SCI occurred */ 51#define ACPI_EC_FLAG_SCI 0x20 /* EC-SCI occurred */
55
56#define ACPI_EC_EVENT_OBF 0x01 /* Output buffer full */ 52#define ACPI_EC_EVENT_OBF 0x01 /* Output buffer full */
57#define ACPI_EC_EVENT_IBE 0x02 /* Input buffer empty */ 53#define ACPI_EC_EVENT_IBE 0x02 /* Input buffer empty */
58
59#define ACPI_EC_DELAY 50 /* Wait 50ms max. during EC ops */ 54#define ACPI_EC_DELAY 50 /* Wait 50ms max. during EC ops */
60#define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */ 55#define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */
61 56#define ACPI_EC_UDELAY 100 /* Poll @ 100us increments */
62#define ACPI_EC_UDELAY 100 /* Poll @ 100us increments */ 57#define ACPI_EC_UDELAY_COUNT 1000 /* Wait 10ms max. during EC ops */
63#define ACPI_EC_UDELAY_COUNT 1000 /* Wait 10ms max. during EC ops */
64
65#define ACPI_EC_COMMAND_READ 0x80 58#define ACPI_EC_COMMAND_READ 0x80
66#define ACPI_EC_COMMAND_WRITE 0x81 59#define ACPI_EC_COMMAND_WRITE 0x81
67#define ACPI_EC_BURST_ENABLE 0x82 60#define ACPI_EC_BURST_ENABLE 0x82
68#define ACPI_EC_BURST_DISABLE 0x83 61#define ACPI_EC_BURST_DISABLE 0x83
69#define ACPI_EC_COMMAND_QUERY 0x84 62#define ACPI_EC_COMMAND_QUERY 0x84
70
71#define EC_POLLING 0xFF 63#define EC_POLLING 0xFF
72#define EC_BURST 0x00 64#define EC_BURST 0x00
73 65static int acpi_ec_remove(struct acpi_device *device, int type);
74 66static int acpi_ec_start(struct acpi_device *device);
75static int acpi_ec_remove (struct acpi_device *device, int type); 67static int acpi_ec_stop(struct acpi_device *device, int type);
76static int acpi_ec_start (struct acpi_device *device); 68static int acpi_ec_burst_add(struct acpi_device *device);
77static int acpi_ec_stop (struct acpi_device *device, int type); 69static int acpi_ec_polling_add(struct acpi_device *device);
78static int acpi_ec_burst_add ( struct acpi_device *device);
79static int acpi_ec_polling_add ( struct acpi_device *device);
80 70
81static struct acpi_driver acpi_ec_driver = { 71static struct acpi_driver acpi_ec_driver = {
82 .name = ACPI_EC_DRIVER_NAME, 72 .name = ACPI_EC_DRIVER_NAME,
83 .class = ACPI_EC_CLASS, 73 .class = ACPI_EC_CLASS,
84 .ids = ACPI_EC_HID, 74 .ids = ACPI_EC_HID,
85 .ops = { 75 .ops = {
86 .add = acpi_ec_polling_add, 76 .add = acpi_ec_polling_add,
87 .remove = acpi_ec_remove, 77 .remove = acpi_ec_remove,
88 .start = acpi_ec_start, 78 .start = acpi_ec_start,
89 .stop = acpi_ec_stop, 79 .stop = acpi_ec_stop,
90 }, 80 },
91}; 81};
92union acpi_ec { 82union acpi_ec {
93 struct { 83 struct {
94 u32 mode; 84 u32 mode;
95 acpi_handle handle; 85 acpi_handle handle;
96 unsigned long uid; 86 unsigned long uid;
97 unsigned long gpe_bit; 87 unsigned long gpe_bit;
98 struct acpi_generic_address status_addr; 88 struct acpi_generic_address status_addr;
99 struct acpi_generic_address command_addr; 89 struct acpi_generic_address command_addr;
100 struct acpi_generic_address data_addr; 90 struct acpi_generic_address data_addr;
101 unsigned long global_lock; 91 unsigned long global_lock;
102 } common; 92 } common;
103 93
104 struct { 94 struct {
105 u32 mode; 95 u32 mode;
106 acpi_handle handle; 96 acpi_handle handle;
107 unsigned long uid; 97 unsigned long uid;
108 unsigned long gpe_bit; 98 unsigned long gpe_bit;
109 struct acpi_generic_address status_addr; 99 struct acpi_generic_address status_addr;
110 struct acpi_generic_address command_addr; 100 struct acpi_generic_address command_addr;
111 struct acpi_generic_address data_addr; 101 struct acpi_generic_address data_addr;
112 unsigned long global_lock; 102 unsigned long global_lock;
113 unsigned int expect_event; 103 unsigned int expect_event;
114 atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort*/ 104 atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort */
115 atomic_t pending_gpe; 105 atomic_t pending_gpe;
116 struct semaphore sem; 106 struct semaphore sem;
117 wait_queue_head_t wait; 107 wait_queue_head_t wait;
118 }burst; 108 } burst;
119 109
120 struct { 110 struct {
121 u32 mode; 111 u32 mode;
122 acpi_handle handle; 112 acpi_handle handle;
123 unsigned long uid; 113 unsigned long uid;
124 unsigned long gpe_bit; 114 unsigned long gpe_bit;
125 struct acpi_generic_address status_addr; 115 struct acpi_generic_address status_addr;
126 struct acpi_generic_address command_addr; 116 struct acpi_generic_address command_addr;
127 struct acpi_generic_address data_addr; 117 struct acpi_generic_address data_addr;
128 unsigned long global_lock; 118 unsigned long global_lock;
129 spinlock_t lock; 119 spinlock_t lock;
130 }polling; 120 } polling;
131}; 121};
132 122
133static int acpi_ec_polling_wait ( union acpi_ec *ec, u8 event); 123static int acpi_ec_polling_wait(union acpi_ec *ec, u8 event);
134static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event); 124static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event);
135static int acpi_ec_polling_read ( union acpi_ec *ec, u8 address, u32 *data); 125static int acpi_ec_polling_read(union acpi_ec *ec, u8 address, u32 * data);
136static int acpi_ec_burst_read( union acpi_ec *ec, u8 address, u32 *data); 126static int acpi_ec_burst_read(union acpi_ec *ec, u8 address, u32 * data);
137static int acpi_ec_polling_write ( union acpi_ec *ec, u8 address, u8 data); 127static int acpi_ec_polling_write(union acpi_ec *ec, u8 address, u8 data);
138static int acpi_ec_burst_write ( union acpi_ec *ec, u8 address, u8 data); 128static int acpi_ec_burst_write(union acpi_ec *ec, u8 address, u8 data);
139static int acpi_ec_polling_query ( union acpi_ec *ec, u32 *data); 129static int acpi_ec_polling_query(union acpi_ec *ec, u32 * data);
140static int acpi_ec_burst_query ( union acpi_ec *ec, u32 *data); 130static int acpi_ec_burst_query(union acpi_ec *ec, u32 * data);
141static void acpi_ec_gpe_polling_query ( void *ec_cxt); 131static void acpi_ec_gpe_polling_query(void *ec_cxt);
142static void acpi_ec_gpe_burst_query ( void *ec_cxt); 132static void acpi_ec_gpe_burst_query(void *ec_cxt);
143static u32 acpi_ec_gpe_polling_handler ( void *data); 133static u32 acpi_ec_gpe_polling_handler(void *data);
144static u32 acpi_ec_gpe_burst_handler ( void *data); 134static u32 acpi_ec_gpe_burst_handler(void *data);
145static acpi_status __init 135static acpi_status __init
146acpi_fake_ecdt_polling_callback ( 136acpi_fake_ecdt_polling_callback(acpi_handle handle,
147 acpi_handle handle, 137 u32 Level, void *context, void **retval);
148 u32 Level,
149 void *context,
150 void **retval);
151 138
152static acpi_status __init 139static acpi_status __init
153acpi_fake_ecdt_burst_callback ( 140acpi_fake_ecdt_burst_callback(acpi_handle handle,
154 acpi_handle handle, 141 u32 Level, void *context, void **retval);
155 u32 Level, 142
156 void *context, 143static int __init acpi_ec_polling_get_real_ecdt(void);
157 void **retval); 144static int __init acpi_ec_burst_get_real_ecdt(void);
158
159static int __init
160acpi_ec_polling_get_real_ecdt(void);
161static int __init
162acpi_ec_burst_get_real_ecdt(void);
163/* If we find an EC via the ECDT, we need to keep a ptr to its context */ 145/* If we find an EC via the ECDT, we need to keep a ptr to its context */
164static union acpi_ec *ec_ecdt; 146static union acpi_ec *ec_ecdt;
165 147
166/* External interfaces use first EC only, so remember */ 148/* External interfaces use first EC only, so remember */
167static struct acpi_device *first_ec; 149static struct acpi_device *first_ec;
@@ -173,30 +155,24 @@ static int acpi_ec_polling_mode = EC_POLLING;
173 155
174static inline u32 acpi_ec_read_status(union acpi_ec *ec) 156static inline u32 acpi_ec_read_status(union acpi_ec *ec)
175{ 157{
176 u32 status = 0; 158 u32 status = 0;
177 159
178 acpi_hw_low_level_read(8, &status, &ec->common.status_addr); 160 acpi_hw_low_level_read(8, &status, &ec->common.status_addr);
179 return status; 161 return status;
180} 162}
181 163
182static int 164static int acpi_ec_wait(union acpi_ec *ec, u8 event)
183acpi_ec_wait (
184 union acpi_ec *ec,
185 u8 event)
186{ 165{
187 if (acpi_ec_polling_mode) 166 if (acpi_ec_polling_mode)
188 return acpi_ec_polling_wait (ec, event); 167 return acpi_ec_polling_wait(ec, event);
189 else 168 else
190 return acpi_ec_burst_wait (ec, event); 169 return acpi_ec_burst_wait(ec, event);
191} 170}
192 171
193static int 172static int acpi_ec_polling_wait(union acpi_ec *ec, u8 event)
194acpi_ec_polling_wait (
195 union acpi_ec *ec,
196 u8 event)
197{ 173{
198 u32 acpi_ec_status = 0; 174 u32 acpi_ec_status = 0;
199 u32 i = ACPI_EC_UDELAY_COUNT; 175 u32 i = ACPI_EC_UDELAY_COUNT;
200 176
201 if (!ec) 177 if (!ec)
202 return -EINVAL; 178 return -EINVAL;
@@ -205,19 +181,21 @@ acpi_ec_polling_wait (
205 switch (event) { 181 switch (event) {
206 case ACPI_EC_EVENT_OBF: 182 case ACPI_EC_EVENT_OBF:
207 do { 183 do {
208 acpi_hw_low_level_read(8, &acpi_ec_status, &ec->common.status_addr); 184 acpi_hw_low_level_read(8, &acpi_ec_status,
185 &ec->common.status_addr);
209 if (acpi_ec_status & ACPI_EC_FLAG_OBF) 186 if (acpi_ec_status & ACPI_EC_FLAG_OBF)
210 return 0; 187 return 0;
211 udelay(ACPI_EC_UDELAY); 188 udelay(ACPI_EC_UDELAY);
212 } while (--i>0); 189 } while (--i > 0);
213 break; 190 break;
214 case ACPI_EC_EVENT_IBE: 191 case ACPI_EC_EVENT_IBE:
215 do { 192 do {
216 acpi_hw_low_level_read(8, &acpi_ec_status, &ec->common.status_addr); 193 acpi_hw_low_level_read(8, &acpi_ec_status,
194 &ec->common.status_addr);
217 if (!(acpi_ec_status & ACPI_EC_FLAG_IBF)) 195 if (!(acpi_ec_status & ACPI_EC_FLAG_IBF))
218 return 0; 196 return 0;
219 udelay(ACPI_EC_UDELAY); 197 udelay(ACPI_EC_UDELAY);
220 } while (--i>0); 198 } while (--i > 0);
221 break; 199 break;
222 default: 200 default:
223 return -EINVAL; 201 return -EINVAL;
@@ -227,7 +205,7 @@ acpi_ec_polling_wait (
227} 205}
228static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event) 206static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)
229{ 207{
230 int result = 0; 208 int result = 0;
231 209
232 ACPI_FUNCTION_TRACE("acpi_ec_wait"); 210 ACPI_FUNCTION_TRACE("acpi_ec_wait");
233 211
@@ -251,9 +229,9 @@ static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)
251 } 229 }
252 230
253 result = wait_event_timeout(ec->burst.wait, 231 result = wait_event_timeout(ec->burst.wait,
254 !ec->burst.expect_event, 232 !ec->burst.expect_event,
255 msecs_to_jiffies(ACPI_EC_DELAY)); 233 msecs_to_jiffies(ACPI_EC_DELAY));
256 234
257 ec->burst.expect_event = 0; 235 ec->burst.expect_event = 0;
258 smp_mb(); 236 smp_mb();
259 237
@@ -277,43 +255,37 @@ static int acpi_ec_burst_wait(union acpi_ec *ec, unsigned int event)
277 return_VALUE(-ETIME); 255 return_VALUE(-ETIME);
278} 256}
279 257
280 258static int acpi_ec_enter_burst_mode(union acpi_ec *ec)
281
282static int
283acpi_ec_enter_burst_mode (
284 union acpi_ec *ec)
285{ 259{
286 u32 tmp = 0; 260 u32 tmp = 0;
287 int status = 0; 261 int status = 0;
288 262
289 ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode"); 263 ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode");
290 264
291 status = acpi_ec_read_status(ec); 265 status = acpi_ec_read_status(ec);
292 if (status != -EINVAL && 266 if (status != -EINVAL && !(status & ACPI_EC_FLAG_BURST)) {
293 !(status & ACPI_EC_FLAG_BURST)){
294 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); 267 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
295 if(status) 268 if (status)
296 goto end; 269 goto end;
297 acpi_hw_low_level_write(8, ACPI_EC_BURST_ENABLE, &ec->common.command_addr); 270 acpi_hw_low_level_write(8, ACPI_EC_BURST_ENABLE,
271 &ec->common.command_addr);
298 status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF); 272 status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
299 if (status) 273 if (status)
300 return_VALUE(-EINVAL); 274 return_VALUE(-EINVAL);
301 acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr); 275 acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr);
302 if(tmp != 0x90 ) {/* Burst ACK byte*/ 276 if (tmp != 0x90) { /* Burst ACK byte */
303 return_VALUE(-EINVAL); 277 return_VALUE(-EINVAL);
304 } 278 }
305 } 279 }
306 280
307 atomic_set(&ec->burst.leaving_burst , 0); 281 atomic_set(&ec->burst.leaving_burst, 0);
308 return_VALUE(0); 282 return_VALUE(0);
309end: 283 end:
310 printk("Error in acpi_ec_wait\n"); 284 printk("Error in acpi_ec_wait\n");
311 return_VALUE(-1); 285 return_VALUE(-1);
312} 286}
313 287
314static int 288static int acpi_ec_leave_burst_mode(union acpi_ec *ec)
315acpi_ec_leave_burst_mode (
316 union acpi_ec *ec)
317{ 289{
318 290
319 ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode"); 291 ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode");
@@ -322,38 +294,26 @@ acpi_ec_leave_burst_mode (
322 return_VALUE(0); 294 return_VALUE(0);
323} 295}
324 296
325static int 297static int acpi_ec_read(union acpi_ec *ec, u8 address, u32 * data)
326acpi_ec_read (
327 union acpi_ec *ec,
328 u8 address,
329 u32 *data)
330{ 298{
331 if (acpi_ec_polling_mode) 299 if (acpi_ec_polling_mode)
332 return acpi_ec_polling_read(ec, address, data); 300 return acpi_ec_polling_read(ec, address, data);
333 else 301 else
334 return acpi_ec_burst_read(ec, address, data); 302 return acpi_ec_burst_read(ec, address, data);
335} 303}
336static int 304static int acpi_ec_write(union acpi_ec *ec, u8 address, u8 data)
337acpi_ec_write (
338 union acpi_ec *ec,
339 u8 address,
340 u8 data)
341{ 305{
342 if (acpi_ec_polling_mode) 306 if (acpi_ec_polling_mode)
343 return acpi_ec_polling_write(ec, address, data); 307 return acpi_ec_polling_write(ec, address, data);
344 else 308 else
345 return acpi_ec_burst_write(ec, address, data); 309 return acpi_ec_burst_write(ec, address, data);
346} 310}
347static int 311static int acpi_ec_polling_read(union acpi_ec *ec, u8 address, u32 * data)
348acpi_ec_polling_read (
349 union acpi_ec *ec,
350 u8 address,
351 u32 *data)
352{ 312{
353 acpi_status status = AE_OK; 313 acpi_status status = AE_OK;
354 int result = 0; 314 int result = 0;
355 unsigned long flags = 0; 315 unsigned long flags = 0;
356 u32 glk = 0; 316 u32 glk = 0;
357 317
358 ACPI_FUNCTION_TRACE("acpi_ec_read"); 318 ACPI_FUNCTION_TRACE("acpi_ec_read");
359 319
@@ -370,7 +330,8 @@ acpi_ec_polling_read (
370 330
371 spin_lock_irqsave(&ec->polling.lock, flags); 331 spin_lock_irqsave(&ec->polling.lock, flags);
372 332
373 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ, &ec->common.command_addr); 333 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ,
334 &ec->common.command_addr);
374 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); 335 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
375 if (result) 336 if (result)
376 goto end; 337 goto end;
@@ -383,9 +344,9 @@ acpi_ec_polling_read (
383 acpi_hw_low_level_read(8, data, &ec->common.data_addr); 344 acpi_hw_low_level_read(8, data, &ec->common.data_addr);
384 345
385 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n", 346 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n",
386 *data, address)); 347 *data, address));
387 348
388end: 349 end:
389 spin_unlock_irqrestore(&ec->polling.lock, flags); 350 spin_unlock_irqrestore(&ec->polling.lock, flags);
390 351
391 if (ec->common.global_lock) 352 if (ec->common.global_lock)
@@ -394,17 +355,12 @@ end:
394 return_VALUE(result); 355 return_VALUE(result);
395} 356}
396 357
397 358static int acpi_ec_polling_write(union acpi_ec *ec, u8 address, u8 data)
398static int
399acpi_ec_polling_write (
400 union acpi_ec *ec,
401 u8 address,
402 u8 data)
403{ 359{
404 int result = 0; 360 int result = 0;
405 acpi_status status = AE_OK; 361 acpi_status status = AE_OK;
406 unsigned long flags = 0; 362 unsigned long flags = 0;
407 u32 glk = 0; 363 u32 glk = 0;
408 364
409 ACPI_FUNCTION_TRACE("acpi_ec_write"); 365 ACPI_FUNCTION_TRACE("acpi_ec_write");
410 366
@@ -419,7 +375,8 @@ acpi_ec_polling_write (
419 375
420 spin_lock_irqsave(&ec->polling.lock, flags); 376 spin_lock_irqsave(&ec->polling.lock, flags);
421 377
422 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE, &ec->common.command_addr); 378 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE,
379 &ec->common.command_addr);
423 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); 380 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
424 if (result) 381 if (result)
425 goto end; 382 goto end;
@@ -435,9 +392,9 @@ acpi_ec_polling_write (
435 goto end; 392 goto end;
436 393
437 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n", 394 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n",
438 data, address)); 395 data, address));
439 396
440end: 397 end:
441 spin_unlock_irqrestore(&ec->polling.lock, flags); 398 spin_unlock_irqrestore(&ec->polling.lock, flags);
442 399
443 if (ec->common.global_lock) 400 if (ec->common.global_lock)
@@ -446,14 +403,10 @@ end:
446 return_VALUE(result); 403 return_VALUE(result);
447} 404}
448 405
449static int 406static int acpi_ec_burst_read(union acpi_ec *ec, u8 address, u32 * data)
450acpi_ec_burst_read (
451 union acpi_ec *ec,
452 u8 address,
453 u32 *data)
454{ 407{
455 int status = 0; 408 int status = 0;
456 u32 glk; 409 u32 glk;
457 410
458 ACPI_FUNCTION_TRACE("acpi_ec_read"); 411 ACPI_FUNCTION_TRACE("acpi_ec_read");
459 412
@@ -477,23 +430,24 @@ acpi_ec_burst_read (
477 printk("read EC, IB not empty\n"); 430 printk("read EC, IB not empty\n");
478 goto end; 431 goto end;
479 } 432 }
480 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ, &ec->common.command_addr); 433 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ,
434 &ec->common.command_addr);
481 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); 435 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
482 if (status) { 436 if (status) {
483 printk("read EC, IB not empty\n"); 437 printk("read EC, IB not empty\n");
484 } 438 }
485 439
486 acpi_hw_low_level_write(8, address, &ec->common.data_addr); 440 acpi_hw_low_level_write(8, address, &ec->common.data_addr);
487 status= acpi_ec_wait(ec, ACPI_EC_EVENT_OBF); 441 status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
488 if (status){ 442 if (status) {
489 printk("read EC, OB not full\n"); 443 printk("read EC, OB not full\n");
490 goto end; 444 goto end;
491 } 445 }
492 acpi_hw_low_level_read(8, data, &ec->common.data_addr); 446 acpi_hw_low_level_read(8, data, &ec->common.data_addr);
493 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n", 447 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Read [%02x] from address [%02x]\n",
494 *data, address)); 448 *data, address));
495 449
496end: 450 end:
497 acpi_ec_leave_burst_mode(ec); 451 acpi_ec_leave_burst_mode(ec);
498 up(&ec->burst.sem); 452 up(&ec->burst.sem);
499 453
@@ -503,15 +457,10 @@ end:
503 return_VALUE(status); 457 return_VALUE(status);
504} 458}
505 459
506 460static int acpi_ec_burst_write(union acpi_ec *ec, u8 address, u8 data)
507static int
508acpi_ec_burst_write (
509 union acpi_ec *ec,
510 u8 address,
511 u8 data)
512{ 461{
513 int status = 0; 462 int status = 0;
514 u32 glk; 463 u32 glk;
515 464
516 ACPI_FUNCTION_TRACE("acpi_ec_write"); 465 ACPI_FUNCTION_TRACE("acpi_ec_write");
517 466
@@ -530,25 +479,26 @@ acpi_ec_burst_write (
530 acpi_ec_enter_burst_mode(ec); 479 acpi_ec_enter_burst_mode(ec);
531 480
532 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); 481 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
533 if ( status) { 482 if (status) {
534 printk("write EC, IB not empty\n"); 483 printk("write EC, IB not empty\n");
535 } 484 }
536 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE, &ec->common.command_addr); 485 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE,
486 &ec->common.command_addr);
537 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); 487 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
538 if (status) { 488 if (status) {
539 printk ("write EC, IB not empty\n"); 489 printk("write EC, IB not empty\n");
540 } 490 }
541 491
542 acpi_hw_low_level_write(8, address, &ec->common.data_addr); 492 acpi_hw_low_level_write(8, address, &ec->common.data_addr);
543 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); 493 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE);
544 if (status){ 494 if (status) {
545 printk("write EC, IB not empty\n"); 495 printk("write EC, IB not empty\n");
546 } 496 }
547 497
548 acpi_hw_low_level_write(8, data, &ec->common.data_addr); 498 acpi_hw_low_level_write(8, data, &ec->common.data_addr);
549 499
550 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n", 500 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Wrote [%02x] to address [%02x]\n",
551 data, address)); 501 data, address));
552 502
553 acpi_ec_leave_burst_mode(ec); 503 acpi_ec_leave_burst_mode(ec);
554 up(&ec->burst.sem); 504 up(&ec->burst.sem);
@@ -562,8 +512,7 @@ acpi_ec_burst_write (
562/* 512/*
563 * Externally callable EC access functions. For now, assume 1 EC only 513 * Externally callable EC access functions. For now, assume 1 EC only
564 */ 514 */
565int 515int ec_read(u8 addr, u8 * val)
566ec_read(u8 addr, u8 *val)
567{ 516{
568 union acpi_ec *ec; 517 union acpi_ec *ec;
569 int err; 518 int err;
@@ -579,14 +528,13 @@ ec_read(u8 addr, u8 *val)
579 if (!err) { 528 if (!err) {
580 *val = temp_data; 529 *val = temp_data;
581 return 0; 530 return 0;
582 } 531 } else
583 else
584 return err; 532 return err;
585} 533}
534
586EXPORT_SYMBOL(ec_read); 535EXPORT_SYMBOL(ec_read);
587 536
588int 537int ec_write(u8 addr, u8 val)
589ec_write(u8 addr, u8 val)
590{ 538{
591 union acpi_ec *ec; 539 union acpi_ec *ec;
592 int err; 540 int err;
@@ -600,27 +548,22 @@ ec_write(u8 addr, u8 val)
600 548
601 return err; 549 return err;
602} 550}
551
603EXPORT_SYMBOL(ec_write); 552EXPORT_SYMBOL(ec_write);
604 553
605static int 554static int acpi_ec_query(union acpi_ec *ec, u32 * data)
606acpi_ec_query (
607 union acpi_ec *ec,
608 u32 *data)
609{ 555{
610 if (acpi_ec_polling_mode) 556 if (acpi_ec_polling_mode)
611 return acpi_ec_polling_query(ec, data); 557 return acpi_ec_polling_query(ec, data);
612 else 558 else
613 return acpi_ec_burst_query(ec, data); 559 return acpi_ec_burst_query(ec, data);
614} 560}
615static int 561static int acpi_ec_polling_query(union acpi_ec *ec, u32 * data)
616acpi_ec_polling_query (
617 union acpi_ec *ec,
618 u32 *data)
619{ 562{
620 int result = 0; 563 int result = 0;
621 acpi_status status = AE_OK; 564 acpi_status status = AE_OK;
622 unsigned long flags = 0; 565 unsigned long flags = 0;
623 u32 glk = 0; 566 u32 glk = 0;
624 567
625 ACPI_FUNCTION_TRACE("acpi_ec_query"); 568 ACPI_FUNCTION_TRACE("acpi_ec_query");
626 569
@@ -642,7 +585,8 @@ acpi_ec_polling_query (
642 */ 585 */
643 spin_lock_irqsave(&ec->polling.lock, flags); 586 spin_lock_irqsave(&ec->polling.lock, flags);
644 587
645 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY, &ec->common.command_addr); 588 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY,
589 &ec->common.command_addr);
646 result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF); 590 result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
647 if (result) 591 if (result)
648 goto end; 592 goto end;
@@ -651,7 +595,7 @@ acpi_ec_polling_query (
651 if (!*data) 595 if (!*data)
652 result = -ENODATA; 596 result = -ENODATA;
653 597
654end: 598 end:
655 spin_unlock_irqrestore(&ec->polling.lock, flags); 599 spin_unlock_irqrestore(&ec->polling.lock, flags);
656 600
657 if (ec->common.global_lock) 601 if (ec->common.global_lock)
@@ -659,13 +603,10 @@ end:
659 603
660 return_VALUE(result); 604 return_VALUE(result);
661} 605}
662static int 606static int acpi_ec_burst_query(union acpi_ec *ec, u32 * data)
663acpi_ec_burst_query (
664 union acpi_ec *ec,
665 u32 *data)
666{ 607{
667 int status = 0; 608 int status = 0;
668 u32 glk; 609 u32 glk;
669 610
670 ACPI_FUNCTION_TRACE("acpi_ec_query"); 611 ACPI_FUNCTION_TRACE("acpi_ec_query");
671 612
@@ -691,9 +632,10 @@ acpi_ec_burst_query (
691 * Note that successful completion of the query causes the ACPI_EC_SCI 632 * Note that successful completion of the query causes the ACPI_EC_SCI
692 * bit to be cleared (and thus clearing the interrupt source). 633 * bit to be cleared (and thus clearing the interrupt source).
693 */ 634 */
694 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY, &ec->common.command_addr); 635 acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY,
636 &ec->common.command_addr);
695 status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF); 637 status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
696 if (status){ 638 if (status) {
697 printk("query EC, OB not full\n"); 639 printk("query EC, OB not full\n");
698 goto end; 640 goto end;
699 } 641 }
@@ -702,7 +644,7 @@ acpi_ec_burst_query (
702 if (!*data) 644 if (!*data)
703 status = -ENODATA; 645 status = -ENODATA;
704 646
705end: 647 end:
706 up(&ec->burst.sem); 648 up(&ec->burst.sem);
707 649
708 if (ec->common.global_lock) 650 if (ec->common.global_lock)
@@ -711,36 +653,32 @@ end:
711 return_VALUE(status); 653 return_VALUE(status);
712} 654}
713 655
714
715/* -------------------------------------------------------------------------- 656/* --------------------------------------------------------------------------
716 Event Management 657 Event Management
717 -------------------------------------------------------------------------- */ 658 -------------------------------------------------------------------------- */
718 659
719union acpi_ec_query_data { 660union acpi_ec_query_data {
720 acpi_handle handle; 661 acpi_handle handle;
721 u8 data; 662 u8 data;
722}; 663};
723 664
724static void 665static void acpi_ec_gpe_query(void *ec_cxt)
725acpi_ec_gpe_query (
726 void *ec_cxt)
727{ 666{
728 if (acpi_ec_polling_mode) 667 if (acpi_ec_polling_mode)
729 acpi_ec_gpe_polling_query(ec_cxt); 668 acpi_ec_gpe_polling_query(ec_cxt);
730 else 669 else
731 acpi_ec_gpe_burst_query(ec_cxt); 670 acpi_ec_gpe_burst_query(ec_cxt);
732} 671}
733 672
734static void 673static void acpi_ec_gpe_polling_query(void *ec_cxt)
735acpi_ec_gpe_polling_query (
736 void *ec_cxt)
737{ 674{
738 union acpi_ec *ec = (union acpi_ec *) ec_cxt; 675 union acpi_ec *ec = (union acpi_ec *)ec_cxt;
739 u32 value = 0; 676 u32 value = 0;
740 unsigned long flags = 0; 677 unsigned long flags = 0;
741 static char object_name[5] = {'_','Q','0','0','\0'}; 678 static char object_name[5] = { '_', 'Q', '0', '0', '\0' };
742 const char hex[] = {'0','1','2','3','4','5','6','7', 679 const char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7',
743 '8','9','A','B','C','D','E','F'}; 680 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
681 };
744 682
745 ACPI_FUNCTION_TRACE("acpi_ec_gpe_query"); 683 ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
746 684
@@ -770,19 +708,18 @@ acpi_ec_gpe_polling_query (
770 708
771 acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL); 709 acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);
772 710
773end: 711 end:
774 acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR); 712 acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
775} 713}
776static void 714static void acpi_ec_gpe_burst_query(void *ec_cxt)
777acpi_ec_gpe_burst_query (
778 void *ec_cxt)
779{ 715{
780 union acpi_ec *ec = (union acpi_ec *) ec_cxt; 716 union acpi_ec *ec = (union acpi_ec *)ec_cxt;
781 u32 value; 717 u32 value;
782 int result = -ENODATA; 718 int result = -ENODATA;
783 static char object_name[5] = {'_','Q','0','0','\0'}; 719 static char object_name[5] = { '_', 'Q', '0', '0', '\0' };
784 const char hex[] = {'0','1','2','3','4','5','6','7', 720 const char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7',
785 '8','9','A','B','C','D','E','F'}; 721 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
722 };
786 723
787 ACPI_FUNCTION_TRACE("acpi_ec_gpe_query"); 724 ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
788 725
@@ -798,26 +735,22 @@ acpi_ec_gpe_burst_query (
798 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluating %s\n", object_name)); 735 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluating %s\n", object_name));
799 736
800 acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL); 737 acpi_evaluate_object(ec->common.handle, object_name, NULL, NULL);
801end: 738 end:
802 atomic_dec(&ec->burst.pending_gpe); 739 atomic_dec(&ec->burst.pending_gpe);
803 return; 740 return;
804} 741}
805 742
806static u32 743static u32 acpi_ec_gpe_handler(void *data)
807acpi_ec_gpe_handler (
808 void *data)
809{ 744{
810 if (acpi_ec_polling_mode) 745 if (acpi_ec_polling_mode)
811 return acpi_ec_gpe_polling_handler(data); 746 return acpi_ec_gpe_polling_handler(data);
812 else 747 else
813 return acpi_ec_gpe_burst_handler(data); 748 return acpi_ec_gpe_burst_handler(data);
814} 749}
815static u32 750static u32 acpi_ec_gpe_polling_handler(void *data)
816acpi_ec_gpe_polling_handler (
817 void *data)
818{ 751{
819 acpi_status status = AE_OK; 752 acpi_status status = AE_OK;
820 union acpi_ec *ec = (union acpi_ec *) data; 753 union acpi_ec *ec = (union acpi_ec *)data;
821 754
822 if (!ec) 755 if (!ec)
823 return ACPI_INTERRUPT_NOT_HANDLED; 756 return ACPI_INTERRUPT_NOT_HANDLED;
@@ -825,20 +758,18 @@ acpi_ec_gpe_polling_handler (
825 acpi_disable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR); 758 acpi_disable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
826 759
827 status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE, 760 status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
828 acpi_ec_gpe_query, ec); 761 acpi_ec_gpe_query, ec);
829 762
830 if (status == AE_OK) 763 if (status == AE_OK)
831 return ACPI_INTERRUPT_HANDLED; 764 return ACPI_INTERRUPT_HANDLED;
832 else 765 else
833 return ACPI_INTERRUPT_NOT_HANDLED; 766 return ACPI_INTERRUPT_NOT_HANDLED;
834} 767}
835static u32 768static u32 acpi_ec_gpe_burst_handler(void *data)
836acpi_ec_gpe_burst_handler (
837 void *data)
838{ 769{
839 acpi_status status = AE_OK; 770 acpi_status status = AE_OK;
840 u32 value; 771 u32 value;
841 union acpi_ec *ec = (union acpi_ec *) data; 772 union acpi_ec *ec = (union acpi_ec *)data;
842 773
843 if (!ec) 774 if (!ec)
844 return ACPI_INTERRUPT_NOT_HANDLED; 775 return ACPI_INTERRUPT_NOT_HANDLED;
@@ -846,7 +777,7 @@ acpi_ec_gpe_burst_handler (
846 acpi_clear_gpe(NULL, ec->common.gpe_bit, ACPI_ISR); 777 acpi_clear_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
847 value = acpi_ec_read_status(ec); 778 value = acpi_ec_read_status(ec);
848 779
849 switch ( ec->burst.expect_event) { 780 switch (ec->burst.expect_event) {
850 case ACPI_EC_EVENT_OBF: 781 case ACPI_EC_EVENT_OBF:
851 if (!(value & ACPI_EC_FLAG_OBF)) 782 if (!(value & ACPI_EC_FLAG_OBF))
852 break; 783 break;
@@ -860,16 +791,16 @@ acpi_ec_gpe_burst_handler (
860 break; 791 break;
861 } 792 }
862 793
863 if (value & ACPI_EC_FLAG_SCI){ 794 if (value & ACPI_EC_FLAG_SCI) {
864 atomic_add(1, &ec->burst.pending_gpe) ; 795 atomic_add(1, &ec->burst.pending_gpe);
865 status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE, 796 status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
866 acpi_ec_gpe_query, ec); 797 acpi_ec_gpe_query, ec);
867 return status == AE_OK ? 798 return status == AE_OK ?
868 ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED; 799 ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
869 } 800 }
870 acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR); 801 acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR);
871 return status == AE_OK ? 802 return status == AE_OK ?
872 ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED; 803 ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
873} 804}
874 805
875/* -------------------------------------------------------------------------- 806/* --------------------------------------------------------------------------
@@ -877,37 +808,31 @@ acpi_ec_gpe_burst_handler (
877 -------------------------------------------------------------------------- */ 808 -------------------------------------------------------------------------- */
878 809
879static acpi_status 810static acpi_status
880acpi_ec_space_setup ( 811acpi_ec_space_setup(acpi_handle region_handle,
881 acpi_handle region_handle, 812 u32 function, void *handler_context, void **return_context)
882 u32 function,
883 void *handler_context,
884 void **return_context)
885{ 813{
886 /* 814 /*
887 * The EC object is in the handler context and is needed 815 * The EC object is in the handler context and is needed
888 * when calling the acpi_ec_space_handler. 816 * when calling the acpi_ec_space_handler.
889 */ 817 */
890 *return_context = (function != ACPI_REGION_DEACTIVATE) ? 818 *return_context = (function != ACPI_REGION_DEACTIVATE) ?
891 handler_context : NULL; 819 handler_context : NULL;
892 820
893 return AE_OK; 821 return AE_OK;
894} 822}
895 823
896
897static acpi_status 824static acpi_status
898acpi_ec_space_handler ( 825acpi_ec_space_handler(u32 function,
899 u32 function, 826 acpi_physical_address address,
900 acpi_physical_address address, 827 u32 bit_width,
901 u32 bit_width, 828 acpi_integer * value,
902 acpi_integer *value, 829 void *handler_context, void *region_context)
903 void *handler_context,
904 void *region_context)
905{ 830{
906 int result = 0; 831 int result = 0;
907 union acpi_ec *ec = NULL; 832 union acpi_ec *ec = NULL;
908 u64 temp = *value; 833 u64 temp = *value;
909 acpi_integer f_v = 0; 834 acpi_integer f_v = 0;
910 int i = 0; 835 int i = 0;
911 836
912 ACPI_FUNCTION_TRACE("acpi_ec_space_handler"); 837 ACPI_FUNCTION_TRACE("acpi_ec_space_handler");
913 838
@@ -915,17 +840,18 @@ acpi_ec_space_handler (
915 return_VALUE(AE_BAD_PARAMETER); 840 return_VALUE(AE_BAD_PARAMETER);
916 841
917 if (bit_width != 8 && acpi_strict) { 842 if (bit_width != 8 && acpi_strict) {
918 printk(KERN_WARNING PREFIX "acpi_ec_space_handler: bit_width should be 8\n"); 843 printk(KERN_WARNING PREFIX
844 "acpi_ec_space_handler: bit_width should be 8\n");
919 return_VALUE(AE_BAD_PARAMETER); 845 return_VALUE(AE_BAD_PARAMETER);
920 } 846 }
921 847
922 ec = (union acpi_ec *) handler_context; 848 ec = (union acpi_ec *)handler_context;
923 849
924next_byte: 850 next_byte:
925 switch (function) { 851 switch (function) {
926 case ACPI_READ: 852 case ACPI_READ:
927 temp = 0; 853 temp = 0;
928 result = acpi_ec_read(ec, (u8) address, (u32 *)&temp); 854 result = acpi_ec_read(ec, (u8) address, (u32 *) & temp);
929 break; 855 break;
930 case ACPI_WRITE: 856 case ACPI_WRITE:
931 result = acpi_ec_write(ec, (u8) address, (u8) temp); 857 result = acpi_ec_write(ec, (u8) address, (u8) temp);
@@ -952,8 +878,7 @@ next_byte:
952 *value = f_v; 878 *value = f_v;
953 } 879 }
954 880
955 881 out:
956out:
957 switch (result) { 882 switch (result) {
958 case -EINVAL: 883 case -EINVAL:
959 return_VALUE(AE_BAD_PARAMETER); 884 return_VALUE(AE_BAD_PARAMETER);
@@ -969,18 +894,15 @@ out:
969 } 894 }
970} 895}
971 896
972
973/* -------------------------------------------------------------------------- 897/* --------------------------------------------------------------------------
974 FS Interface (/proc) 898 FS Interface (/proc)
975 -------------------------------------------------------------------------- */ 899 -------------------------------------------------------------------------- */
976 900
977static struct proc_dir_entry *acpi_ec_dir; 901static struct proc_dir_entry *acpi_ec_dir;
978 902
979 903static int acpi_ec_read_info(struct seq_file *seq, void *offset)
980static int
981acpi_ec_read_info (struct seq_file *seq, void *offset)
982{ 904{
983 union acpi_ec *ec = (union acpi_ec *) seq->private; 905 union acpi_ec *ec = (union acpi_ec *)seq->private;
984 906
985 ACPI_FUNCTION_TRACE("acpi_ec_read_info"); 907 ACPI_FUNCTION_TRACE("acpi_ec_read_info");
986 908
@@ -988,14 +910,15 @@ acpi_ec_read_info (struct seq_file *seq, void *offset)
988 goto end; 910 goto end;
989 911
990 seq_printf(seq, "gpe bit: 0x%02x\n", 912 seq_printf(seq, "gpe bit: 0x%02x\n",
991 (u32) ec->common.gpe_bit); 913 (u32) ec->common.gpe_bit);
992 seq_printf(seq, "ports: 0x%02x, 0x%02x\n", 914 seq_printf(seq, "ports: 0x%02x, 0x%02x\n",
993 (u32) ec->common.status_addr.address, (u32) ec->common.data_addr.address); 915 (u32) ec->common.status_addr.address,
916 (u32) ec->common.data_addr.address);
994 seq_printf(seq, "use global lock: %s\n", 917 seq_printf(seq, "use global lock: %s\n",
995 ec->common.global_lock?"yes":"no"); 918 ec->common.global_lock ? "yes" : "no");
996 acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR); 919 acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
997 920
998end: 921 end:
999 return_VALUE(0); 922 return_VALUE(0);
1000} 923}
1001 924
@@ -1005,34 +928,32 @@ static int acpi_ec_info_open_fs(struct inode *inode, struct file *file)
1005} 928}
1006 929
1007static struct file_operations acpi_ec_info_ops = { 930static struct file_operations acpi_ec_info_ops = {
1008 .open = acpi_ec_info_open_fs, 931 .open = acpi_ec_info_open_fs,
1009 .read = seq_read, 932 .read = seq_read,
1010 .llseek = seq_lseek, 933 .llseek = seq_lseek,
1011 .release = single_release, 934 .release = single_release,
1012 .owner = THIS_MODULE, 935 .owner = THIS_MODULE,
1013}; 936};
1014 937
1015static int 938static int acpi_ec_add_fs(struct acpi_device *device)
1016acpi_ec_add_fs (
1017 struct acpi_device *device)
1018{ 939{
1019 struct proc_dir_entry *entry = NULL; 940 struct proc_dir_entry *entry = NULL;
1020 941
1021 ACPI_FUNCTION_TRACE("acpi_ec_add_fs"); 942 ACPI_FUNCTION_TRACE("acpi_ec_add_fs");
1022 943
1023 if (!acpi_device_dir(device)) { 944 if (!acpi_device_dir(device)) {
1024 acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), 945 acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
1025 acpi_ec_dir); 946 acpi_ec_dir);
1026 if (!acpi_device_dir(device)) 947 if (!acpi_device_dir(device))
1027 return_VALUE(-ENODEV); 948 return_VALUE(-ENODEV);
1028 } 949 }
1029 950
1030 entry = create_proc_entry(ACPI_EC_FILE_INFO, S_IRUGO, 951 entry = create_proc_entry(ACPI_EC_FILE_INFO, S_IRUGO,
1031 acpi_device_dir(device)); 952 acpi_device_dir(device));
1032 if (!entry) 953 if (!entry)
1033 ACPI_DEBUG_PRINT((ACPI_DB_WARN, 954 ACPI_DEBUG_PRINT((ACPI_DB_WARN,
1034 "Unable to create '%s' fs entry\n", 955 "Unable to create '%s' fs entry\n",
1035 ACPI_EC_FILE_INFO)); 956 ACPI_EC_FILE_INFO));
1036 else { 957 else {
1037 entry->proc_fops = &acpi_ec_info_ops; 958 entry->proc_fops = &acpi_ec_info_ops;
1038 entry->data = acpi_driver_data(device); 959 entry->data = acpi_driver_data(device);
@@ -1042,10 +963,7 @@ acpi_ec_add_fs (
1042 return_VALUE(0); 963 return_VALUE(0);
1043} 964}
1044 965
1045 966static int acpi_ec_remove_fs(struct acpi_device *device)
1046static int
1047acpi_ec_remove_fs (
1048 struct acpi_device *device)
1049{ 967{
1050 ACPI_FUNCTION_TRACE("acpi_ec_remove_fs"); 968 ACPI_FUNCTION_TRACE("acpi_ec_remove_fs");
1051 969
@@ -1058,20 +976,16 @@ acpi_ec_remove_fs (
1058 return_VALUE(0); 976 return_VALUE(0);
1059} 977}
1060 978
1061
1062/* -------------------------------------------------------------------------- 979/* --------------------------------------------------------------------------
1063 Driver Interface 980 Driver Interface
1064 -------------------------------------------------------------------------- */ 981 -------------------------------------------------------------------------- */
1065 982
1066 983static int acpi_ec_polling_add(struct acpi_device *device)
1067static int
1068acpi_ec_polling_add (
1069 struct acpi_device *device)
1070{ 984{
1071 int result = 0; 985 int result = 0;
1072 acpi_status status = AE_OK; 986 acpi_status status = AE_OK;
1073 union acpi_ec *ec = NULL; 987 union acpi_ec *ec = NULL;
1074 unsigned long uid; 988 unsigned long uid;
1075 989
1076 ACPI_FUNCTION_TRACE("acpi_ec_add"); 990 ACPI_FUNCTION_TRACE("acpi_ec_add");
1077 991
@@ -1091,26 +1005,31 @@ acpi_ec_polling_add (
1091 acpi_driver_data(device) = ec; 1005 acpi_driver_data(device) = ec;
1092 1006
1093 /* Use the global lock for all EC transactions? */ 1007 /* Use the global lock for all EC transactions? */
1094 acpi_evaluate_integer(ec->common.handle, "_GLK", NULL, &ec->common.global_lock); 1008 acpi_evaluate_integer(ec->common.handle, "_GLK", NULL,
1009 &ec->common.global_lock);
1095 1010
1096 /* If our UID matches the UID for the ECDT-enumerated EC, 1011 /* If our UID matches the UID for the ECDT-enumerated EC,
1097 we now have the *real* EC info, so kill the makeshift one.*/ 1012 we now have the *real* EC info, so kill the makeshift one. */
1098 acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid); 1013 acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid);
1099 if (ec_ecdt && ec_ecdt->common.uid == uid) { 1014 if (ec_ecdt && ec_ecdt->common.uid == uid) {
1100 acpi_remove_address_space_handler(ACPI_ROOT_OBJECT, 1015 acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
1101 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler); 1016 ACPI_ADR_SPACE_EC,
1102 1017 &acpi_ec_space_handler);
1103 acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit, &acpi_ec_gpe_handler); 1018
1019 acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
1020 &acpi_ec_gpe_handler);
1104 1021
1105 kfree(ec_ecdt); 1022 kfree(ec_ecdt);
1106 } 1023 }
1107 1024
1108 /* Get GPE bit assignment (EC events). */ 1025 /* Get GPE bit assignment (EC events). */
1109 /* TODO: Add support for _GPE returning a package */ 1026 /* TODO: Add support for _GPE returning a package */
1110 status = acpi_evaluate_integer(ec->common.handle, "_GPE", NULL, &ec->common.gpe_bit); 1027 status =
1028 acpi_evaluate_integer(ec->common.handle, "_GPE", NULL,
1029 &ec->common.gpe_bit);
1111 if (ACPI_FAILURE(status)) { 1030 if (ACPI_FAILURE(status)) {
1112 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 1031 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1113 "Error obtaining GPE bit assignment\n")); 1032 "Error obtaining GPE bit assignment\n"));
1114 result = -ENODEV; 1033 result = -ENODEV;
1115 goto end; 1034 goto end;
1116 } 1035 }
@@ -1120,26 +1039,24 @@ acpi_ec_polling_add (
1120 goto end; 1039 goto end;
1121 1040
1122 printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n", 1041 printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n",
1123 acpi_device_name(device), acpi_device_bid(device), 1042 acpi_device_name(device), acpi_device_bid(device),
1124 (u32) ec->common.gpe_bit); 1043 (u32) ec->common.gpe_bit);
1125 1044
1126 if (!first_ec) 1045 if (!first_ec)
1127 first_ec = device; 1046 first_ec = device;
1128 1047
1129end: 1048 end:
1130 if (result) 1049 if (result)
1131 kfree(ec); 1050 kfree(ec);
1132 1051
1133 return_VALUE(result); 1052 return_VALUE(result);
1134} 1053}
1135static int 1054static int acpi_ec_burst_add(struct acpi_device *device)
1136acpi_ec_burst_add (
1137 struct acpi_device *device)
1138{ 1055{
1139 int result = 0; 1056 int result = 0;
1140 acpi_status status = AE_OK; 1057 acpi_status status = AE_OK;
1141 union acpi_ec *ec = NULL; 1058 union acpi_ec *ec = NULL;
1142 unsigned long uid; 1059 unsigned long uid;
1143 1060
1144 ACPI_FUNCTION_TRACE("acpi_ec_add"); 1061 ACPI_FUNCTION_TRACE("acpi_ec_add");
1145 1062
@@ -1153,35 +1070,40 @@ acpi_ec_burst_add (
1153 1070
1154 ec->common.handle = device->handle; 1071 ec->common.handle = device->handle;
1155 ec->common.uid = -1; 1072 ec->common.uid = -1;
1156 atomic_set(&ec->burst.pending_gpe, 0); 1073 atomic_set(&ec->burst.pending_gpe, 0);
1157 atomic_set(&ec->burst.leaving_burst , 1); 1074 atomic_set(&ec->burst.leaving_burst, 1);
1158 init_MUTEX(&ec->burst.sem); 1075 init_MUTEX(&ec->burst.sem);
1159 init_waitqueue_head(&ec->burst.wait); 1076 init_waitqueue_head(&ec->burst.wait);
1160 strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME); 1077 strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);
1161 strcpy(acpi_device_class(device), ACPI_EC_CLASS); 1078 strcpy(acpi_device_class(device), ACPI_EC_CLASS);
1162 acpi_driver_data(device) = ec; 1079 acpi_driver_data(device) = ec;
1163 1080
1164 /* Use the global lock for all EC transactions? */ 1081 /* Use the global lock for all EC transactions? */
1165 acpi_evaluate_integer(ec->common.handle, "_GLK", NULL, &ec->common.global_lock); 1082 acpi_evaluate_integer(ec->common.handle, "_GLK", NULL,
1083 &ec->common.global_lock);
1166 1084
1167 /* If our UID matches the UID for the ECDT-enumerated EC, 1085 /* If our UID matches the UID for the ECDT-enumerated EC,
1168 we now have the *real* EC info, so kill the makeshift one.*/ 1086 we now have the *real* EC info, so kill the makeshift one. */
1169 acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid); 1087 acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid);
1170 if (ec_ecdt && ec_ecdt->common.uid == uid) { 1088 if (ec_ecdt && ec_ecdt->common.uid == uid) {
1171 acpi_remove_address_space_handler(ACPI_ROOT_OBJECT, 1089 acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
1172 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler); 1090 ACPI_ADR_SPACE_EC,
1091 &acpi_ec_space_handler);
1173 1092
1174 acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit, &acpi_ec_gpe_handler); 1093 acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
1094 &acpi_ec_gpe_handler);
1175 1095
1176 kfree(ec_ecdt); 1096 kfree(ec_ecdt);
1177 } 1097 }
1178 1098
1179 /* Get GPE bit assignment (EC events). */ 1099 /* Get GPE bit assignment (EC events). */
1180 /* TODO: Add support for _GPE returning a package */ 1100 /* TODO: Add support for _GPE returning a package */
1181 status = acpi_evaluate_integer(ec->common.handle, "_GPE", NULL, &ec->common.gpe_bit); 1101 status =
1102 acpi_evaluate_integer(ec->common.handle, "_GPE", NULL,
1103 &ec->common.gpe_bit);
1182 if (ACPI_FAILURE(status)) { 1104 if (ACPI_FAILURE(status)) {
1183 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 1105 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1184 "Error obtaining GPE bit assignment\n")); 1106 "Error obtaining GPE bit assignment\n"));
1185 result = -ENODEV; 1107 result = -ENODEV;
1186 goto end; 1108 goto end;
1187 } 1109 }
@@ -1192,26 +1114,22 @@ acpi_ec_burst_add (
1192 1114
1193 printk("burst-mode-ec-10-Aug\n"); 1115 printk("burst-mode-ec-10-Aug\n");
1194 printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n", 1116 printk(KERN_INFO PREFIX "%s [%s] (gpe %d)\n",
1195 acpi_device_name(device), acpi_device_bid(device), 1117 acpi_device_name(device), acpi_device_bid(device),
1196 (u32) ec->common.gpe_bit); 1118 (u32) ec->common.gpe_bit);
1197 1119
1198 if (!first_ec) 1120 if (!first_ec)
1199 first_ec = device; 1121 first_ec = device;
1200 1122
1201end: 1123 end:
1202 if (result) 1124 if (result)
1203 kfree(ec); 1125 kfree(ec);
1204 1126
1205 return_VALUE(result); 1127 return_VALUE(result);
1206} 1128}
1207 1129
1208 1130static int acpi_ec_remove(struct acpi_device *device, int type)
1209static int
1210acpi_ec_remove (
1211 struct acpi_device *device,
1212 int type)
1213{ 1131{
1214 union acpi_ec *ec = NULL; 1132 union acpi_ec *ec = NULL;
1215 1133
1216 ACPI_FUNCTION_TRACE("acpi_ec_remove"); 1134 ACPI_FUNCTION_TRACE("acpi_ec_remove");
1217 1135
@@ -1227,13 +1145,10 @@ acpi_ec_remove (
1227 return_VALUE(0); 1145 return_VALUE(0);
1228} 1146}
1229 1147
1230
1231static acpi_status 1148static acpi_status
1232acpi_ec_io_ports ( 1149acpi_ec_io_ports(struct acpi_resource *resource, void *context)
1233 struct acpi_resource *resource,
1234 void *context)
1235{ 1150{
1236 union acpi_ec *ec = (union acpi_ec *) context; 1151 union acpi_ec *ec = (union acpi_ec *)context;
1237 struct acpi_generic_address *addr; 1152 struct acpi_generic_address *addr;
1238 1153
1239 if (resource->id != ACPI_RSTYPE_IO) { 1154 if (resource->id != ACPI_RSTYPE_IO) {
@@ -1261,13 +1176,10 @@ acpi_ec_io_ports (
1261 return AE_OK; 1176 return AE_OK;
1262} 1177}
1263 1178
1264 1179static int acpi_ec_start(struct acpi_device *device)
1265static int
1266acpi_ec_start (
1267 struct acpi_device *device)
1268{ 1180{
1269 acpi_status status = AE_OK; 1181 acpi_status status = AE_OK;
1270 union acpi_ec *ec = NULL; 1182 union acpi_ec *ec = NULL;
1271 1183
1272 ACPI_FUNCTION_TRACE("acpi_ec_start"); 1184 ACPI_FUNCTION_TRACE("acpi_ec_start");
1273 1185
@@ -1283,49 +1195,50 @@ acpi_ec_start (
1283 * Get I/O port addresses. Convert to GAS format. 1195 * Get I/O port addresses. Convert to GAS format.
1284 */ 1196 */
1285 status = acpi_walk_resources(ec->common.handle, METHOD_NAME__CRS, 1197 status = acpi_walk_resources(ec->common.handle, METHOD_NAME__CRS,
1286 acpi_ec_io_ports, ec); 1198 acpi_ec_io_ports, ec);
1287 if (ACPI_FAILURE(status) || ec->common.command_addr.register_bit_width == 0) { 1199 if (ACPI_FAILURE(status)
1288 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error getting I/O port addresses")); 1200 || ec->common.command_addr.register_bit_width == 0) {
1201 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1202 "Error getting I/O port addresses"));
1289 return_VALUE(-ENODEV); 1203 return_VALUE(-ENODEV);
1290 } 1204 }
1291 1205
1292 ec->common.status_addr = ec->common.command_addr; 1206 ec->common.status_addr = ec->common.command_addr;
1293 1207
1294 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "gpe=0x%02x, ports=0x%2x,0x%2x\n", 1208 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "gpe=0x%02x, ports=0x%2x,0x%2x\n",
1295 (u32) ec->common.gpe_bit, (u32) ec->common.command_addr.address, 1209 (u32) ec->common.gpe_bit,
1296 (u32) ec->common.data_addr.address)); 1210 (u32) ec->common.command_addr.address,
1297 1211 (u32) ec->common.data_addr.address));
1298 1212
1299 /* 1213 /*
1300 * Install GPE handler 1214 * Install GPE handler
1301 */ 1215 */
1302 status = acpi_install_gpe_handler(NULL, ec->common.gpe_bit, 1216 status = acpi_install_gpe_handler(NULL, ec->common.gpe_bit,
1303 ACPI_GPE_EDGE_TRIGGERED, &acpi_ec_gpe_handler, ec); 1217 ACPI_GPE_EDGE_TRIGGERED,
1218 &acpi_ec_gpe_handler, ec);
1304 if (ACPI_FAILURE(status)) { 1219 if (ACPI_FAILURE(status)) {
1305 return_VALUE(-ENODEV); 1220 return_VALUE(-ENODEV);
1306 } 1221 }
1307 acpi_set_gpe_type (NULL, ec->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME); 1222 acpi_set_gpe_type(NULL, ec->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME);
1308 acpi_enable_gpe (NULL, ec->common.gpe_bit, ACPI_NOT_ISR); 1223 acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
1309 1224
1310 status = acpi_install_address_space_handler (ec->common.handle, 1225 status = acpi_install_address_space_handler(ec->common.handle,
1311 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler, 1226 ACPI_ADR_SPACE_EC,
1312 &acpi_ec_space_setup, ec); 1227 &acpi_ec_space_handler,
1228 &acpi_ec_space_setup, ec);
1313 if (ACPI_FAILURE(status)) { 1229 if (ACPI_FAILURE(status)) {
1314 acpi_remove_gpe_handler(NULL, ec->common.gpe_bit, &acpi_ec_gpe_handler); 1230 acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
1231 &acpi_ec_gpe_handler);
1315 return_VALUE(-ENODEV); 1232 return_VALUE(-ENODEV);
1316 } 1233 }
1317 1234
1318 return_VALUE(AE_OK); 1235 return_VALUE(AE_OK);
1319} 1236}
1320 1237
1321 1238static int acpi_ec_stop(struct acpi_device *device, int type)
1322static int
1323acpi_ec_stop (
1324 struct acpi_device *device,
1325 int type)
1326{ 1239{
1327 acpi_status status = AE_OK; 1240 acpi_status status = AE_OK;
1328 union acpi_ec *ec = NULL; 1241 union acpi_ec *ec = NULL;
1329 1242
1330 ACPI_FUNCTION_TRACE("acpi_ec_stop"); 1243 ACPI_FUNCTION_TRACE("acpi_ec_stop");
1331 1244
@@ -1335,11 +1248,14 @@ acpi_ec_stop (
1335 ec = acpi_driver_data(device); 1248 ec = acpi_driver_data(device);
1336 1249
1337 status = acpi_remove_address_space_handler(ec->common.handle, 1250 status = acpi_remove_address_space_handler(ec->common.handle,
1338 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler); 1251 ACPI_ADR_SPACE_EC,
1252 &acpi_ec_space_handler);
1339 if (ACPI_FAILURE(status)) 1253 if (ACPI_FAILURE(status))
1340 return_VALUE(-ENODEV); 1254 return_VALUE(-ENODEV);
1341 1255
1342 status = acpi_remove_gpe_handler(NULL, ec->common.gpe_bit, &acpi_ec_gpe_handler); 1256 status =
1257 acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
1258 &acpi_ec_gpe_handler);
1343 if (ACPI_FAILURE(status)) 1259 if (ACPI_FAILURE(status))
1344 return_VALUE(-ENODEV); 1260 return_VALUE(-ENODEV);
1345 1261
@@ -1347,32 +1263,26 @@ acpi_ec_stop (
1347} 1263}
1348 1264
1349static acpi_status __init 1265static acpi_status __init
1350acpi_fake_ecdt_callback ( 1266acpi_fake_ecdt_callback(acpi_handle handle,
1351 acpi_handle handle, 1267 u32 Level, void *context, void **retval)
1352 u32 Level,
1353 void *context,
1354 void **retval)
1355{ 1268{
1356 1269
1357 if (acpi_ec_polling_mode) 1270 if (acpi_ec_polling_mode)
1358 return acpi_fake_ecdt_polling_callback(handle, 1271 return acpi_fake_ecdt_polling_callback(handle,
1359 Level, context, retval); 1272 Level, context, retval);
1360 else 1273 else
1361 return acpi_fake_ecdt_burst_callback(handle, 1274 return acpi_fake_ecdt_burst_callback(handle,
1362 Level, context, retval); 1275 Level, context, retval);
1363} 1276}
1364 1277
1365static acpi_status __init 1278static acpi_status __init
1366acpi_fake_ecdt_polling_callback ( 1279acpi_fake_ecdt_polling_callback(acpi_handle handle,
1367 acpi_handle handle, 1280 u32 Level, void *context, void **retval)
1368 u32 Level,
1369 void *context,
1370 void **retval)
1371{ 1281{
1372 acpi_status status; 1282 acpi_status status;
1373 1283
1374 status = acpi_walk_resources(handle, METHOD_NAME__CRS, 1284 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
1375 acpi_ec_io_ports, ec_ecdt); 1285 acpi_ec_io_ports, ec_ecdt);
1376 if (ACPI_FAILURE(status)) 1286 if (ACPI_FAILURE(status))
1377 return status; 1287 return status;
1378 ec_ecdt->common.status_addr = ec_ecdt->common.command_addr; 1288 ec_ecdt->common.status_addr = ec_ecdt->common.command_addr;
@@ -1380,33 +1290,33 @@ acpi_fake_ecdt_polling_callback (
1380 ec_ecdt->common.uid = -1; 1290 ec_ecdt->common.uid = -1;
1381 acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->common.uid); 1291 acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->common.uid);
1382 1292
1383 status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec_ecdt->common.gpe_bit); 1293 status =
1294 acpi_evaluate_integer(handle, "_GPE", NULL,
1295 &ec_ecdt->common.gpe_bit);
1384 if (ACPI_FAILURE(status)) 1296 if (ACPI_FAILURE(status))
1385 return status; 1297 return status;
1386 spin_lock_init(&ec_ecdt->polling.lock); 1298 spin_lock_init(&ec_ecdt->polling.lock);
1387 ec_ecdt->common.global_lock = TRUE; 1299 ec_ecdt->common.global_lock = TRUE;
1388 ec_ecdt->common.handle = handle; 1300 ec_ecdt->common.handle = handle;
1389 1301
1390 printk(KERN_INFO PREFIX "GPE=0x%02x, ports=0x%2x, 0x%2x\n", 1302 printk(KERN_INFO PREFIX "GPE=0x%02x, ports=0x%2x, 0x%2x\n",
1391 (u32) ec_ecdt->common.gpe_bit, (u32) ec_ecdt->common.command_addr.address, 1303 (u32) ec_ecdt->common.gpe_bit,
1392 (u32) ec_ecdt->common.data_addr.address); 1304 (u32) ec_ecdt->common.command_addr.address,
1305 (u32) ec_ecdt->common.data_addr.address);
1393 1306
1394 return AE_CTRL_TERMINATE; 1307 return AE_CTRL_TERMINATE;
1395} 1308}
1396 1309
1397static acpi_status __init 1310static acpi_status __init
1398acpi_fake_ecdt_burst_callback ( 1311acpi_fake_ecdt_burst_callback(acpi_handle handle,
1399 acpi_handle handle, 1312 u32 Level, void *context, void **retval)
1400 u32 Level,
1401 void *context,
1402 void **retval)
1403{ 1313{
1404 acpi_status status; 1314 acpi_status status;
1405 1315
1406 init_MUTEX(&ec_ecdt->burst.sem); 1316 init_MUTEX(&ec_ecdt->burst.sem);
1407 init_waitqueue_head(&ec_ecdt->burst.wait); 1317 init_waitqueue_head(&ec_ecdt->burst.wait);
1408 status = acpi_walk_resources(handle, METHOD_NAME__CRS, 1318 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
1409 acpi_ec_io_ports, ec_ecdt); 1319 acpi_ec_io_ports, ec_ecdt);
1410 if (ACPI_FAILURE(status)) 1320 if (ACPI_FAILURE(status))
1411 return status; 1321 return status;
1412 ec_ecdt->common.status_addr = ec_ecdt->common.command_addr; 1322 ec_ecdt->common.status_addr = ec_ecdt->common.command_addr;
@@ -1414,15 +1324,18 @@ acpi_fake_ecdt_burst_callback (
1414 ec_ecdt->common.uid = -1; 1324 ec_ecdt->common.uid = -1;
1415 acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->common.uid); 1325 acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->common.uid);
1416 1326
1417 status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec_ecdt->common.gpe_bit); 1327 status =
1328 acpi_evaluate_integer(handle, "_GPE", NULL,
1329 &ec_ecdt->common.gpe_bit);
1418 if (ACPI_FAILURE(status)) 1330 if (ACPI_FAILURE(status))
1419 return status; 1331 return status;
1420 ec_ecdt->common.global_lock = TRUE; 1332 ec_ecdt->common.global_lock = TRUE;
1421 ec_ecdt->common.handle = handle; 1333 ec_ecdt->common.handle = handle;
1422 1334
1423 printk(KERN_INFO PREFIX "GPE=0x%02x, ports=0x%2x, 0x%2x\n", 1335 printk(KERN_INFO PREFIX "GPE=0x%02x, ports=0x%2x, 0x%2x\n",
1424 (u32) ec_ecdt->common.gpe_bit, (u32) ec_ecdt->common.command_addr.address, 1336 (u32) ec_ecdt->common.gpe_bit,
1425 (u32) ec_ecdt->common.data_addr.address); 1337 (u32) ec_ecdt->common.command_addr.address,
1338 (u32) ec_ecdt->common.data_addr.address);
1426 1339
1427 return AE_CTRL_TERMINATE; 1340 return AE_CTRL_TERMINATE;
1428} 1341}
@@ -1437,11 +1350,10 @@ acpi_fake_ecdt_burst_callback (
1437 * op region (since _REG isn't invoked yet). The assumption is true for 1350 * op region (since _REG isn't invoked yet). The assumption is true for
1438 * all systems found. 1351 * all systems found.
1439 */ 1352 */
1440static int __init 1353static int __init acpi_ec_fake_ecdt(void)
1441acpi_ec_fake_ecdt(void)
1442{ 1354{
1443 acpi_status status; 1355 acpi_status status;
1444 int ret = 0; 1356 int ret = 0;
1445 1357
1446 printk(KERN_INFO PREFIX "Try to make an fake ECDT\n"); 1358 printk(KERN_INFO PREFIX "Try to make an fake ECDT\n");
1447 1359
@@ -1452,10 +1364,8 @@ acpi_ec_fake_ecdt(void)
1452 } 1364 }
1453 memset(ec_ecdt, 0, sizeof(union acpi_ec)); 1365 memset(ec_ecdt, 0, sizeof(union acpi_ec));
1454 1366
1455 status = acpi_get_devices (ACPI_EC_HID, 1367 status = acpi_get_devices(ACPI_EC_HID,
1456 acpi_fake_ecdt_callback, 1368 acpi_fake_ecdt_callback, NULL, NULL);
1457 NULL,
1458 NULL);
1459 if (ACPI_FAILURE(status)) { 1369 if (ACPI_FAILURE(status)) {
1460 kfree(ec_ecdt); 1370 kfree(ec_ecdt);
1461 ec_ecdt = NULL; 1371 ec_ecdt = NULL;
@@ -1463,13 +1373,12 @@ acpi_ec_fake_ecdt(void)
1463 goto error; 1373 goto error;
1464 } 1374 }
1465 return 0; 1375 return 0;
1466error: 1376 error:
1467 printk(KERN_ERR PREFIX "Can't make an fake ECDT\n"); 1377 printk(KERN_ERR PREFIX "Can't make an fake ECDT\n");
1468 return ret; 1378 return ret;
1469} 1379}
1470 1380
1471static int __init 1381static int __init acpi_ec_get_real_ecdt(void)
1472acpi_ec_get_real_ecdt(void)
1473{ 1382{
1474 if (acpi_ec_polling_mode) 1383 if (acpi_ec_polling_mode)
1475 return acpi_ec_polling_get_real_ecdt(); 1384 return acpi_ec_polling_get_real_ecdt();
@@ -1477,14 +1386,14 @@ acpi_ec_get_real_ecdt(void)
1477 return acpi_ec_burst_get_real_ecdt(); 1386 return acpi_ec_burst_get_real_ecdt();
1478} 1387}
1479 1388
1480static int __init 1389static int __init acpi_ec_polling_get_real_ecdt(void)
1481acpi_ec_polling_get_real_ecdt(void)
1482{ 1390{
1483 acpi_status status; 1391 acpi_status status;
1484 struct acpi_table_ecdt *ecdt_ptr; 1392 struct acpi_table_ecdt *ecdt_ptr;
1485 1393
1486 status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING, 1394 status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING,
1487 (struct acpi_table_header **) &ecdt_ptr); 1395 (struct acpi_table_header **)
1396 &ecdt_ptr);
1488 if (ACPI_FAILURE(status)) 1397 if (ACPI_FAILURE(status))
1489 return -ENODEV; 1398 return -ENODEV;
1490 1399
@@ -1507,13 +1416,14 @@ acpi_ec_polling_get_real_ecdt(void)
1507 ec_ecdt->common.global_lock = TRUE; 1416 ec_ecdt->common.global_lock = TRUE;
1508 ec_ecdt->common.uid = ecdt_ptr->uid; 1417 ec_ecdt->common.uid = ecdt_ptr->uid;
1509 1418
1510 status = acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->common.handle); 1419 status =
1420 acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->common.handle);
1511 if (ACPI_FAILURE(status)) { 1421 if (ACPI_FAILURE(status)) {
1512 goto error; 1422 goto error;
1513 } 1423 }
1514 1424
1515 return 0; 1425 return 0;
1516error: 1426 error:
1517 printk(KERN_ERR PREFIX "Could not use ECDT\n"); 1427 printk(KERN_ERR PREFIX "Could not use ECDT\n");
1518 kfree(ec_ecdt); 1428 kfree(ec_ecdt);
1519 ec_ecdt = NULL; 1429 ec_ecdt = NULL;
@@ -1521,15 +1431,14 @@ error:
1521 return -ENODEV; 1431 return -ENODEV;
1522} 1432}
1523 1433
1524 1434static int __init acpi_ec_burst_get_real_ecdt(void)
1525static int __init
1526acpi_ec_burst_get_real_ecdt(void)
1527{ 1435{
1528 acpi_status status; 1436 acpi_status status;
1529 struct acpi_table_ecdt *ecdt_ptr; 1437 struct acpi_table_ecdt *ecdt_ptr;
1530 1438
1531 status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING, 1439 status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING,
1532 (struct acpi_table_header **) &ecdt_ptr); 1440 (struct acpi_table_header **)
1441 &ecdt_ptr);
1533 if (ACPI_FAILURE(status)) 1442 if (ACPI_FAILURE(status))
1534 return -ENODEV; 1443 return -ENODEV;
1535 1444
@@ -1543,8 +1452,8 @@ acpi_ec_burst_get_real_ecdt(void)
1543 return -ENOMEM; 1452 return -ENOMEM;
1544 memset(ec_ecdt, 0, sizeof(union acpi_ec)); 1453 memset(ec_ecdt, 0, sizeof(union acpi_ec));
1545 1454
1546 init_MUTEX(&ec_ecdt->burst.sem); 1455 init_MUTEX(&ec_ecdt->burst.sem);
1547 init_waitqueue_head(&ec_ecdt->burst.wait); 1456 init_waitqueue_head(&ec_ecdt->burst.wait);
1548 ec_ecdt->common.command_addr = ecdt_ptr->ec_control; 1457 ec_ecdt->common.command_addr = ecdt_ptr->ec_control;
1549 ec_ecdt->common.status_addr = ecdt_ptr->ec_control; 1458 ec_ecdt->common.status_addr = ecdt_ptr->ec_control;
1550 ec_ecdt->common.data_addr = ecdt_ptr->ec_data; 1459 ec_ecdt->common.data_addr = ecdt_ptr->ec_data;
@@ -1553,13 +1462,14 @@ acpi_ec_burst_get_real_ecdt(void)
1553 ec_ecdt->common.global_lock = TRUE; 1462 ec_ecdt->common.global_lock = TRUE;
1554 ec_ecdt->common.uid = ecdt_ptr->uid; 1463 ec_ecdt->common.uid = ecdt_ptr->uid;
1555 1464
1556 status = acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->common.handle); 1465 status =
1466 acpi_get_handle(NULL, ecdt_ptr->ec_id, &ec_ecdt->common.handle);
1557 if (ACPI_FAILURE(status)) { 1467 if (ACPI_FAILURE(status)) {
1558 goto error; 1468 goto error;
1559 } 1469 }
1560 1470
1561 return 0; 1471 return 0;
1562error: 1472 error:
1563 printk(KERN_ERR PREFIX "Could not use ECDT\n"); 1473 printk(KERN_ERR PREFIX "Could not use ECDT\n");
1564 kfree(ec_ecdt); 1474 kfree(ec_ecdt);
1565 ec_ecdt = NULL; 1475 ec_ecdt = NULL;
@@ -1568,11 +1478,10 @@ error:
1568} 1478}
1569 1479
1570static int __initdata acpi_fake_ecdt_enabled; 1480static int __initdata acpi_fake_ecdt_enabled;
1571int __init 1481int __init acpi_ec_ecdt_probe(void)
1572acpi_ec_ecdt_probe (void)
1573{ 1482{
1574 acpi_status status; 1483 acpi_status status;
1575 int ret; 1484 int ret;
1576 1485
1577 ret = acpi_ec_get_real_ecdt(); 1486 ret = acpi_ec_get_real_ecdt();
1578 /* Try to make a fake ECDT */ 1487 /* Try to make a fake ECDT */
@@ -1587,26 +1496,28 @@ acpi_ec_ecdt_probe (void)
1587 * Install GPE handler 1496 * Install GPE handler
1588 */ 1497 */
1589 status = acpi_install_gpe_handler(NULL, ec_ecdt->common.gpe_bit, 1498 status = acpi_install_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
1590 ACPI_GPE_EDGE_TRIGGERED, &acpi_ec_gpe_handler, 1499 ACPI_GPE_EDGE_TRIGGERED,
1591 ec_ecdt); 1500 &acpi_ec_gpe_handler, ec_ecdt);
1592 if (ACPI_FAILURE(status)) { 1501 if (ACPI_FAILURE(status)) {
1593 goto error; 1502 goto error;
1594 } 1503 }
1595 acpi_set_gpe_type (NULL, ec_ecdt->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME); 1504 acpi_set_gpe_type(NULL, ec_ecdt->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME);
1596 acpi_enable_gpe (NULL, ec_ecdt->common.gpe_bit, ACPI_NOT_ISR); 1505 acpi_enable_gpe(NULL, ec_ecdt->common.gpe_bit, ACPI_NOT_ISR);
1597 1506
1598 status = acpi_install_address_space_handler (ACPI_ROOT_OBJECT, 1507 status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
1599 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler, 1508 ACPI_ADR_SPACE_EC,
1600 &acpi_ec_space_setup, ec_ecdt); 1509 &acpi_ec_space_handler,
1510 &acpi_ec_space_setup,
1511 ec_ecdt);
1601 if (ACPI_FAILURE(status)) { 1512 if (ACPI_FAILURE(status)) {
1602 acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit, 1513 acpi_remove_gpe_handler(NULL, ec_ecdt->common.gpe_bit,
1603 &acpi_ec_gpe_handler); 1514 &acpi_ec_gpe_handler);
1604 goto error; 1515 goto error;
1605 } 1516 }
1606 1517
1607 return 0; 1518 return 0;
1608 1519
1609error: 1520 error:
1610 printk(KERN_ERR PREFIX "Could not use ECDT\n"); 1521 printk(KERN_ERR PREFIX "Could not use ECDT\n");
1611 kfree(ec_ecdt); 1522 kfree(ec_ecdt);
1612 ec_ecdt = NULL; 1523 ec_ecdt = NULL;
@@ -1614,10 +1525,9 @@ error:
1614 return -ENODEV; 1525 return -ENODEV;
1615} 1526}
1616 1527
1617 1528static int __init acpi_ec_init(void)
1618static int __init acpi_ec_init (void)
1619{ 1529{
1620 int result = 0; 1530 int result = 0;
1621 1531
1622 ACPI_FUNCTION_TRACE("acpi_ec_init"); 1532 ACPI_FUNCTION_TRACE("acpi_ec_init");
1623 1533
@@ -1642,8 +1552,7 @@ subsys_initcall(acpi_ec_init);
1642 1552
1643/* EC driver currently not unloadable */ 1553/* EC driver currently not unloadable */
1644#if 0 1554#if 0
1645static void __exit 1555static void __exit acpi_ec_exit(void)
1646acpi_ec_exit (void)
1647{ 1556{
1648 ACPI_FUNCTION_TRACE("acpi_ec_exit"); 1557 ACPI_FUNCTION_TRACE("acpi_ec_exit");
1649 1558
@@ -1653,7 +1562,7 @@ acpi_ec_exit (void)
1653 1562
1654 return_VOID; 1563 return_VOID;
1655} 1564}
1656#endif /* 0 */ 1565#endif /* 0 */
1657 1566
1658static int __init acpi_fake_ecdt_setup(char *str) 1567static int __init acpi_fake_ecdt_setup(char *str)
1659{ 1568{
@@ -1676,8 +1585,8 @@ static int __init acpi_ec_set_polling_mode(char *str)
1676 acpi_ec_polling_mode = EC_POLLING; 1585 acpi_ec_polling_mode = EC_POLLING;
1677 acpi_ec_driver.ops.add = acpi_ec_polling_add; 1586 acpi_ec_driver.ops.add = acpi_ec_polling_add;
1678 } 1587 }
1679 printk(KERN_INFO PREFIX "EC %s mode.\n", 1588 printk(KERN_INFO PREFIX "EC %s mode.\n", burst ? "burst" : "polling");
1680 burst ? "burst": "polling");
1681 return 0; 1589 return 0;
1682} 1590}
1591
1683__setup("ec_burst=", acpi_ec_set_polling_mode); 1592__setup("ec_burst=", acpi_ec_set_polling_mode);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-28 05:39:36 -0500