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85cb01af JW |
1 | /* |
2 | * LIRC driver for ITE8709 CIR port | |
3 | * | |
4 | * Copyright (C) 2008 Grégory Lardière <spmf2004-lirc@yahoo.fr> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation; either version 2 of the | |
9 | * License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
19 | * USA | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/sched.h> | |
25 | #include <linux/delay.h> | |
26 | #include <linux/pnp.h> | |
27 | #include <linux/io.h> | |
28 | ||
29 | #include <media/lirc.h> | |
30 | #include <media/lirc_dev.h> | |
31 | ||
32 | #define LIRC_DRIVER_NAME "lirc_ite8709" | |
33 | ||
34 | #define BUF_CHUNK_SIZE sizeof(int) | |
35 | #define BUF_SIZE (128*BUF_CHUNK_SIZE) | |
36 | ||
37 | /* | |
38 | * The ITE8709 device seems to be the combination of IT8512 superIO chip and | |
39 | * a specific firmware running on the IT8512's embedded micro-controller. | |
40 | * In addition of the embedded micro-controller, the IT8512 chip contains a | |
41 | * CIR module and several other modules. A few modules are directly accessible | |
42 | * by the host CPU, but most of them are only accessible by the | |
43 | * micro-controller. The CIR module is only accessible by the micro-controller. | |
44 | * The battery-backed SRAM module is accessible by the host CPU and the | |
45 | * micro-controller. So one of the MC's firmware role is to act as a bridge | |
46 | * between the host CPU and the CIR module. The firmware implements a kind of | |
47 | * communication protocol using the SRAM module as a shared memory. The IT8512 | |
48 | * specification is publicly available on ITE's web site, but the communication | |
49 | * protocol is not, so it was reverse-engineered. | |
50 | */ | |
51 | ||
52 | /* ITE8709 Registers addresses and values (reverse-engineered) */ | |
53 | #define ITE8709_MODE 0x1a | |
54 | #define ITE8709_REG_ADR 0x1b | |
55 | #define ITE8709_REG_VAL 0x1c | |
56 | #define ITE8709_IIR 0x1e /* Interrupt identification register */ | |
57 | #define ITE8709_RFSR 0x1f /* Receiver FIFO status register */ | |
58 | #define ITE8709_FIFO_START 0x20 | |
59 | ||
60 | #define ITE8709_MODE_READY 0X00 | |
61 | #define ITE8709_MODE_WRITE 0X01 | |
62 | #define ITE8709_MODE_READ 0X02 | |
63 | #define ITE8709_IIR_RDAI 0x02 /* Receiver data available interrupt */ | |
64 | #define ITE8709_IIR_RFOI 0x04 /* Receiver FIFO overrun interrupt */ | |
65 | #define ITE8709_RFSR_MASK 0x3f /* FIFO byte count mask */ | |
66 | ||
67 | /* | |
68 | * IT8512 CIR-module registers addresses and values | |
69 | * (from IT8512 E/F specification v0.4.1) | |
70 | */ | |
71 | #define IT8512_REG_MSTCR 0x01 /* Master control register */ | |
72 | #define IT8512_REG_IER 0x02 /* Interrupt enable register */ | |
73 | #define IT8512_REG_CFR 0x04 /* Carrier frequency register */ | |
74 | #define IT8512_REG_RCR 0x05 /* Receive control register */ | |
75 | #define IT8512_REG_BDLR 0x08 /* Baud rate divisor low byte register */ | |
76 | #define IT8512_REG_BDHR 0x09 /* Baud rate divisor high byte register */ | |
77 | ||
78 | #define IT8512_MSTCR_RESET 0x01 /* Reset registers to default value */ | |
79 | #define IT8512_MSTCR_FIFOCLR 0x02 /* Clear FIFO */ | |
80 | #define IT8512_MSTCR_FIFOTL_7 0x04 /* FIFO threshold level : 7 */ | |
81 | #define IT8512_MSTCR_FIFOTL_25 0x0c /* FIFO threshold level : 25 */ | |
82 | #define IT8512_IER_RDAIE 0x02 /* Enable data interrupt request */ | |
83 | #define IT8512_IER_RFOIE 0x04 /* Enable FIFO overrun interrupt req */ | |
84 | #define IT8512_IER_IEC 0x80 /* Enable interrupt request */ | |
85 | #define IT8512_CFR_CF_36KHZ 0x09 /* Carrier freq : low speed, 36kHz */ | |
86 | #define IT8512_RCR_RXDCR_1 0x01 /* Demodulation carrier range : 1 */ | |
87 | #define IT8512_RCR_RXACT 0x08 /* Receiver active */ | |
88 | #define IT8512_RCR_RXEN 0x80 /* Receiver enable */ | |
89 | #define IT8512_BDR_6 6 /* Baud rate divisor : 6 */ | |
90 | ||
91 | /* Actual values used by this driver */ | |
92 | #define CFG_FIFOTL IT8512_MSTCR_FIFOTL_25 | |
93 | #define CFG_CR_FREQ IT8512_CFR_CF_36KHZ | |
94 | #define CFG_DCR IT8512_RCR_RXDCR_1 | |
95 | #define CFG_BDR IT8512_BDR_6 | |
96 | #define CFG_TIMEOUT 100000 /* Rearm interrupt when a space is > 100 ms */ | |
97 | ||
98 | static int debug; | |
99 | ||
100 | struct ite8709_device { | |
101 | int use_count; | |
102 | int io; | |
103 | int irq; | |
104 | spinlock_t hardware_lock; | |
105 | unsigned long long acc_pulse; | |
106 | unsigned long long acc_space; | |
107 | char lastbit; | |
108 | struct timeval last_tv; | |
109 | struct lirc_driver driver; | |
110 | struct tasklet_struct tasklet; | |
111 | char force_rearm; | |
112 | char rearmed; | |
113 | char device_busy; | |
114 | }; | |
115 | ||
116 | #define dprintk(fmt, args...) \ | |
117 | do { \ | |
118 | if (debug) \ | |
119 | printk(KERN_DEBUG LIRC_DRIVER_NAME ": " \ | |
120 | fmt, ## args); \ | |
121 | } while (0) | |
122 | ||
123 | ||
124 | static unsigned char ite8709_read(struct ite8709_device *dev, | |
125 | unsigned char port) | |
126 | { | |
127 | outb(port, dev->io); | |
128 | return inb(dev->io+1); | |
129 | } | |
130 | ||
131 | static void ite8709_write(struct ite8709_device *dev, unsigned char port, | |
132 | unsigned char data) | |
133 | { | |
134 | outb(port, dev->io); | |
135 | outb(data, dev->io+1); | |
136 | } | |
137 | ||
138 | static void ite8709_wait_device(struct ite8709_device *dev) | |
139 | { | |
140 | int i = 0; | |
141 | /* | |
142 | * loop until device tells it's ready to continue | |
143 | * iterations count is usually ~750 but can sometimes achieve 13000 | |
144 | */ | |
145 | for (i = 0; i < 15000; i++) { | |
146 | udelay(2); | |
147 | if (ite8709_read(dev, ITE8709_MODE) == ITE8709_MODE_READY) | |
148 | break; | |
149 | } | |
150 | } | |
151 | ||
152 | static void ite8709_write_register(struct ite8709_device *dev, | |
153 | unsigned char reg_adr, unsigned char reg_value) | |
154 | { | |
155 | ite8709_wait_device(dev); | |
156 | ||
157 | ite8709_write(dev, ITE8709_REG_VAL, reg_value); | |
158 | ite8709_write(dev, ITE8709_REG_ADR, reg_adr); | |
159 | ite8709_write(dev, ITE8709_MODE, ITE8709_MODE_WRITE); | |
160 | } | |
161 | ||
162 | static void ite8709_init_hardware(struct ite8709_device *dev) | |
163 | { | |
164 | spin_lock_irq(&dev->hardware_lock); | |
165 | dev->device_busy = 1; | |
166 | spin_unlock_irq(&dev->hardware_lock); | |
167 | ||
168 | ite8709_write_register(dev, IT8512_REG_BDHR, (CFG_BDR >> 8) & 0xff); | |
169 | ite8709_write_register(dev, IT8512_REG_BDLR, CFG_BDR & 0xff); | |
170 | ite8709_write_register(dev, IT8512_REG_CFR, CFG_CR_FREQ); | |
171 | ite8709_write_register(dev, IT8512_REG_IER, | |
172 | IT8512_IER_IEC | IT8512_IER_RFOIE | IT8512_IER_RDAIE); | |
173 | ite8709_write_register(dev, IT8512_REG_RCR, CFG_DCR); | |
174 | ite8709_write_register(dev, IT8512_REG_MSTCR, | |
175 | CFG_FIFOTL | IT8512_MSTCR_FIFOCLR); | |
176 | ite8709_write_register(dev, IT8512_REG_RCR, | |
177 | IT8512_RCR_RXEN | IT8512_RCR_RXACT | CFG_DCR); | |
178 | ||
179 | spin_lock_irq(&dev->hardware_lock); | |
180 | dev->device_busy = 0; | |
181 | spin_unlock_irq(&dev->hardware_lock); | |
182 | ||
183 | tasklet_enable(&dev->tasklet); | |
184 | } | |
185 | ||
186 | static void ite8709_drop_hardware(struct ite8709_device *dev) | |
187 | { | |
188 | tasklet_disable(&dev->tasklet); | |
189 | ||
190 | spin_lock_irq(&dev->hardware_lock); | |
191 | dev->device_busy = 1; | |
192 | spin_unlock_irq(&dev->hardware_lock); | |
193 | ||
194 | ite8709_write_register(dev, IT8512_REG_RCR, 0); | |
195 | ite8709_write_register(dev, IT8512_REG_MSTCR, | |
196 | IT8512_MSTCR_RESET | IT8512_MSTCR_FIFOCLR); | |
197 | ||
198 | spin_lock_irq(&dev->hardware_lock); | |
199 | dev->device_busy = 0; | |
200 | spin_unlock_irq(&dev->hardware_lock); | |
201 | } | |
202 | ||
203 | static int ite8709_set_use_inc(void *data) | |
204 | { | |
205 | struct ite8709_device *dev; | |
206 | dev = data; | |
207 | if (dev->use_count == 0) | |
208 | ite8709_init_hardware(dev); | |
209 | dev->use_count++; | |
210 | return 0; | |
211 | } | |
212 | ||
213 | static void ite8709_set_use_dec(void *data) | |
214 | { | |
215 | struct ite8709_device *dev; | |
216 | dev = data; | |
217 | dev->use_count--; | |
218 | if (dev->use_count == 0) | |
219 | ite8709_drop_hardware(dev); | |
220 | } | |
221 | ||
222 | static void ite8709_add_read_queue(struct ite8709_device *dev, int flag, | |
223 | unsigned long long val) | |
224 | { | |
225 | int value; | |
226 | ||
227 | dprintk("add a %llu usec %s\n", val, flag ? "pulse" : "space"); | |
228 | ||
229 | value = (val > PULSE_MASK) ? PULSE_MASK : val; | |
230 | if (flag) | |
231 | value |= PULSE_BIT; | |
232 | ||
233 | if (!lirc_buffer_full(dev->driver.rbuf)) { | |
234 | lirc_buffer_write(dev->driver.rbuf, (void *) &value); | |
235 | wake_up(&dev->driver.rbuf->wait_poll); | |
236 | } | |
237 | } | |
238 | ||
239 | static irqreturn_t ite8709_interrupt(int irq, void *dev_id) | |
240 | { | |
241 | unsigned char data; | |
242 | int iir, rfsr, i; | |
243 | int fifo = 0; | |
244 | char bit; | |
245 | struct timeval curr_tv; | |
246 | ||
247 | /* Bit duration in microseconds */ | |
248 | const unsigned long bit_duration = 1000000ul / (115200 / CFG_BDR); | |
249 | ||
250 | struct ite8709_device *dev; | |
251 | dev = dev_id; | |
252 | ||
253 | /* | |
254 | * If device is busy, we simply discard data because we are in one of | |
255 | * these two cases : shutting down or rearming the device, so this | |
256 | * doesn't really matter and this avoids waiting too long in IRQ ctx | |
257 | */ | |
258 | spin_lock(&dev->hardware_lock); | |
259 | if (dev->device_busy) { | |
260 | spin_unlock(&dev->hardware_lock); | |
261 | return IRQ_RETVAL(IRQ_HANDLED); | |
262 | } | |
263 | ||
264 | iir = ite8709_read(dev, ITE8709_IIR); | |
265 | ||
266 | switch (iir) { | |
267 | case ITE8709_IIR_RFOI: | |
268 | dprintk("fifo overrun, scheduling forced rearm just in case\n"); | |
269 | dev->force_rearm = 1; | |
270 | tasklet_schedule(&dev->tasklet); | |
271 | spin_unlock(&dev->hardware_lock); | |
272 | return IRQ_RETVAL(IRQ_HANDLED); | |
273 | ||
274 | case ITE8709_IIR_RDAI: | |
275 | rfsr = ite8709_read(dev, ITE8709_RFSR); | |
276 | fifo = rfsr & ITE8709_RFSR_MASK; | |
277 | if (fifo > 32) | |
278 | fifo = 32; | |
279 | dprintk("iir: 0x%x rfsr: 0x%x fifo: %d\n", iir, rfsr, fifo); | |
280 | ||
281 | if (dev->rearmed) { | |
282 | do_gettimeofday(&curr_tv); | |
283 | dev->acc_space += 1000000ull | |
284 | * (curr_tv.tv_sec - dev->last_tv.tv_sec) | |
285 | + (curr_tv.tv_usec - dev->last_tv.tv_usec); | |
286 | dev->rearmed = 0; | |
287 | } | |
288 | for (i = 0; i < fifo; i++) { | |
289 | data = ite8709_read(dev, i+ITE8709_FIFO_START); | |
290 | data = ~data; | |
291 | /* Loop through */ | |
292 | for (bit = 0; bit < 8; ++bit) { | |
293 | if ((data >> bit) & 1) { | |
294 | dev->acc_pulse += bit_duration; | |
295 | if (dev->lastbit == 0) { | |
296 | ite8709_add_read_queue(dev, 0, | |
297 | dev->acc_space); | |
298 | dev->acc_space = 0; | |
299 | } | |
300 | } else { | |
301 | dev->acc_space += bit_duration; | |
302 | if (dev->lastbit == 1) { | |
303 | ite8709_add_read_queue(dev, 1, | |
304 | dev->acc_pulse); | |
305 | dev->acc_pulse = 0; | |
306 | } | |
307 | } | |
308 | dev->lastbit = (data >> bit) & 1; | |
309 | } | |
310 | } | |
311 | ite8709_write(dev, ITE8709_RFSR, 0); | |
312 | ||
313 | if (dev->acc_space > CFG_TIMEOUT) { | |
314 | dprintk("scheduling rearm IRQ\n"); | |
315 | do_gettimeofday(&dev->last_tv); | |
316 | dev->force_rearm = 0; | |
317 | tasklet_schedule(&dev->tasklet); | |
318 | } | |
319 | ||
320 | spin_unlock(&dev->hardware_lock); | |
321 | return IRQ_RETVAL(IRQ_HANDLED); | |
322 | ||
323 | default: | |
324 | /* not our irq */ | |
325 | dprintk("unknown IRQ (shouldn't happen) !!\n"); | |
326 | spin_unlock(&dev->hardware_lock); | |
327 | return IRQ_RETVAL(IRQ_NONE); | |
328 | } | |
329 | } | |
330 | ||
331 | static void ite8709_rearm_irq(unsigned long data) | |
332 | { | |
333 | struct ite8709_device *dev; | |
334 | unsigned long flags; | |
335 | dev = (struct ite8709_device *) data; | |
336 | ||
337 | spin_lock_irqsave(&dev->hardware_lock, flags); | |
338 | dev->device_busy = 1; | |
339 | spin_unlock_irqrestore(&dev->hardware_lock, flags); | |
340 | ||
341 | if (dev->force_rearm || dev->acc_space > CFG_TIMEOUT) { | |
342 | dprintk("rearming IRQ\n"); | |
343 | ite8709_write_register(dev, IT8512_REG_RCR, | |
344 | IT8512_RCR_RXACT | CFG_DCR); | |
345 | ite8709_write_register(dev, IT8512_REG_MSTCR, | |
346 | CFG_FIFOTL | IT8512_MSTCR_FIFOCLR); | |
347 | ite8709_write_register(dev, IT8512_REG_RCR, | |
348 | IT8512_RCR_RXEN | IT8512_RCR_RXACT | CFG_DCR); | |
349 | if (!dev->force_rearm) | |
350 | dev->rearmed = 1; | |
351 | dev->force_rearm = 0; | |
352 | } | |
353 | ||
354 | spin_lock_irqsave(&dev->hardware_lock, flags); | |
355 | dev->device_busy = 0; | |
356 | spin_unlock_irqrestore(&dev->hardware_lock, flags); | |
357 | } | |
358 | ||
359 | static int ite8709_cleanup(struct ite8709_device *dev, int stage, int errno, | |
360 | char *msg) | |
361 | { | |
362 | if (msg != NULL) | |
363 | printk(KERN_ERR LIRC_DRIVER_NAME ": %s\n", msg); | |
364 | ||
365 | switch (stage) { | |
366 | case 6: | |
367 | if (dev->use_count > 0) | |
368 | ite8709_drop_hardware(dev); | |
369 | case 5: | |
370 | free_irq(dev->irq, dev); | |
371 | case 4: | |
372 | release_region(dev->io, 2); | |
373 | case 3: | |
374 | lirc_unregister_driver(dev->driver.minor); | |
375 | case 2: | |
376 | lirc_buffer_free(dev->driver.rbuf); | |
377 | kfree(dev->driver.rbuf); | |
378 | case 1: | |
379 | kfree(dev); | |
380 | case 0: | |
381 | ; | |
382 | } | |
383 | ||
384 | return errno; | |
385 | } | |
386 | ||
387 | static int __devinit ite8709_pnp_probe(struct pnp_dev *dev, | |
388 | const struct pnp_device_id *dev_id) | |
389 | { | |
390 | struct lirc_driver *driver; | |
391 | struct ite8709_device *ite8709_dev; | |
392 | int ret; | |
393 | ||
394 | /* Check resources validity */ | |
395 | if (!pnp_irq_valid(dev, 0)) | |
396 | return ite8709_cleanup(NULL, 0, -ENODEV, "invalid IRQ"); | |
397 | if (!pnp_port_valid(dev, 2)) | |
398 | return ite8709_cleanup(NULL, 0, -ENODEV, "invalid IO port"); | |
399 | ||
400 | /* Allocate memory for device struct */ | |
401 | ite8709_dev = kzalloc(sizeof(struct ite8709_device), GFP_KERNEL); | |
402 | if (ite8709_dev == NULL) | |
403 | return ite8709_cleanup(NULL, 0, -ENOMEM, "kzalloc failed"); | |
404 | pnp_set_drvdata(dev, ite8709_dev); | |
405 | ||
406 | /* Initialize device struct */ | |
407 | ite8709_dev->use_count = 0; | |
408 | ite8709_dev->irq = pnp_irq(dev, 0); | |
409 | ite8709_dev->io = pnp_port_start(dev, 2); | |
410 | ite8709_dev->hardware_lock = | |
411 | __SPIN_LOCK_UNLOCKED(ite8709_dev->hardware_lock); | |
412 | ite8709_dev->acc_pulse = 0; | |
413 | ite8709_dev->acc_space = 0; | |
414 | ite8709_dev->lastbit = 0; | |
415 | do_gettimeofday(&ite8709_dev->last_tv); | |
416 | tasklet_init(&ite8709_dev->tasklet, ite8709_rearm_irq, | |
417 | (long) ite8709_dev); | |
418 | ite8709_dev->force_rearm = 0; | |
419 | ite8709_dev->rearmed = 0; | |
420 | ite8709_dev->device_busy = 0; | |
421 | ||
422 | /* Initialize driver struct */ | |
423 | driver = &ite8709_dev->driver; | |
424 | strcpy(driver->name, LIRC_DRIVER_NAME); | |
425 | driver->minor = -1; | |
426 | driver->code_length = sizeof(int) * 8; | |
427 | driver->sample_rate = 0; | |
428 | driver->features = LIRC_CAN_REC_MODE2; | |
429 | driver->data = ite8709_dev; | |
430 | driver->add_to_buf = NULL; | |
431 | driver->set_use_inc = ite8709_set_use_inc; | |
432 | driver->set_use_dec = ite8709_set_use_dec; | |
433 | driver->dev = &dev->dev; | |
434 | driver->owner = THIS_MODULE; | |
435 | ||
436 | /* Initialize LIRC buffer */ | |
437 | driver->rbuf = kmalloc(sizeof(struct lirc_buffer), GFP_KERNEL); | |
438 | if (!driver->rbuf) | |
439 | return ite8709_cleanup(ite8709_dev, 1, -ENOMEM, | |
440 | "can't allocate lirc_buffer"); | |
441 | if (lirc_buffer_init(driver->rbuf, BUF_CHUNK_SIZE, BUF_SIZE)) | |
442 | return ite8709_cleanup(ite8709_dev, 1, -ENOMEM, | |
443 | "lirc_buffer_init() failed"); | |
444 | ||
445 | /* Register LIRC driver */ | |
446 | ret = lirc_register_driver(driver); | |
447 | if (ret < 0) | |
448 | return ite8709_cleanup(ite8709_dev, 2, ret, | |
449 | "lirc_register_driver() failed"); | |
450 | ||
451 | /* Reserve I/O port access */ | |
452 | if (!request_region(ite8709_dev->io, 2, LIRC_DRIVER_NAME)) | |
453 | return ite8709_cleanup(ite8709_dev, 3, -EBUSY, | |
454 | "i/o port already in use"); | |
455 | ||
456 | /* Reserve IRQ line */ | |
457 | ret = request_irq(ite8709_dev->irq, ite8709_interrupt, 0, | |
458 | LIRC_DRIVER_NAME, ite8709_dev); | |
459 | if (ret < 0) | |
460 | return ite8709_cleanup(ite8709_dev, 4, ret, | |
461 | "IRQ already in use"); | |
462 | ||
463 | /* Initialize hardware */ | |
464 | ite8709_drop_hardware(ite8709_dev); /* Shutdown hw until first use */ | |
465 | ||
466 | printk(KERN_INFO LIRC_DRIVER_NAME ": device found : irq=%d io=0x%x\n", | |
467 | ite8709_dev->irq, ite8709_dev->io); | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | static void __devexit ite8709_pnp_remove(struct pnp_dev *dev) | |
473 | { | |
474 | struct ite8709_device *ite8709_dev; | |
475 | ite8709_dev = pnp_get_drvdata(dev); | |
476 | ||
477 | ite8709_cleanup(ite8709_dev, 6, 0, NULL); | |
478 | ||
479 | printk(KERN_INFO LIRC_DRIVER_NAME ": device removed\n"); | |
480 | } | |
481 | ||
482 | #ifdef CONFIG_PM | |
483 | static int ite8709_pnp_suspend(struct pnp_dev *dev, pm_message_t state) | |
484 | { | |
485 | struct ite8709_device *ite8709_dev; | |
486 | ite8709_dev = pnp_get_drvdata(dev); | |
487 | ||
488 | if (ite8709_dev->use_count > 0) | |
489 | ite8709_drop_hardware(ite8709_dev); | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | static int ite8709_pnp_resume(struct pnp_dev *dev) | |
495 | { | |
496 | struct ite8709_device *ite8709_dev; | |
497 | ite8709_dev = pnp_get_drvdata(dev); | |
498 | ||
499 | if (ite8709_dev->use_count > 0) | |
500 | ite8709_init_hardware(ite8709_dev); | |
501 | ||
502 | return 0; | |
503 | } | |
504 | #else | |
505 | #define ite8709_pnp_suspend NULL | |
506 | #define ite8709_pnp_resume NULL | |
507 | #endif | |
508 | ||
509 | static const struct pnp_device_id pnp_dev_table[] = { | |
510 | {"ITE8709", 0}, | |
511 | {} | |
512 | }; | |
513 | ||
514 | MODULE_DEVICE_TABLE(pnp, pnp_dev_table); | |
515 | ||
516 | static struct pnp_driver ite8709_pnp_driver = { | |
517 | .name = LIRC_DRIVER_NAME, | |
518 | .probe = ite8709_pnp_probe, | |
519 | .remove = __devexit_p(ite8709_pnp_remove), | |
520 | .suspend = ite8709_pnp_suspend, | |
521 | .resume = ite8709_pnp_resume, | |
522 | .id_table = pnp_dev_table, | |
523 | }; | |
524 | ||
525 | static int __init ite8709_init_module(void) | |
526 | { | |
527 | return pnp_register_driver(&ite8709_pnp_driver); | |
528 | } | |
529 | module_init(ite8709_init_module); | |
530 | ||
531 | static void __exit ite8709_cleanup_module(void) | |
532 | { | |
533 | pnp_unregister_driver(&ite8709_pnp_driver); | |
534 | } | |
535 | module_exit(ite8709_cleanup_module); | |
536 | ||
537 | MODULE_DESCRIPTION("LIRC driver for ITE8709 CIR port"); | |
538 | MODULE_AUTHOR("Grégory Lardière"); | |
539 | MODULE_LICENSE("GPL"); | |
540 | ||
541 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
542 | MODULE_PARM_DESC(debug, "Enable debugging messages"); |