Commit | Line | Data |
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2154be65 JW |
1 | /* |
2 | * USB RedRat3 IR Transceiver rc-core driver | |
3 | * | |
4 | * Copyright (c) 2011 by Jarod Wilson <jarod@redhat.com> | |
5 | * based heavily on the work of Stephen Cox, with additional | |
6 | * help from RedRat Ltd. | |
7 | * | |
8 | * This driver began life based an an old version of the first-generation | |
9 | * lirc_mceusb driver from the lirc 0.7.2 distribution. It was then | |
10 | * significantly rewritten by Stephen Cox with the aid of RedRat Ltd's | |
11 | * Chris Dodge. | |
12 | * | |
13 | * The driver was then ported to rc-core and significantly rewritten again, | |
14 | * by Jarod, using the in-kernel mceusb driver as a guide, after an initial | |
15 | * port effort was started by Stephen. | |
16 | * | |
17 | * TODO LIST: | |
18 | * - fix lirc not showing repeats properly | |
19 | * -- | |
20 | * | |
21 | * The RedRat3 is a USB transceiver with both send & receive, | |
22 | * with 2 separate sensors available for receive to enable | |
23 | * both good long range reception for general use, and good | |
24 | * short range reception when required for learning a signal. | |
25 | * | |
26 | * http://www.redrat.co.uk/ | |
27 | * | |
28 | * It uses its own little protocol to communicate, the required | |
29 | * parts of which are embedded within this driver. | |
30 | * -- | |
31 | * | |
32 | * This program is free software; you can redistribute it and/or modify | |
33 | * it under the terms of the GNU General Public License as published by | |
34 | * the Free Software Foundation; either version 2 of the License, or | |
35 | * (at your option) any later version. | |
36 | * | |
37 | * This program is distributed in the hope that it will be useful, | |
38 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
39 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
40 | * GNU General Public License for more details. | |
41 | * | |
42 | * You should have received a copy of the GNU General Public License | |
43 | * along with this program; if not, write to the Free Software | |
44 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
45 | * | |
46 | */ | |
47 | ||
4c055a5a | 48 | #include <asm/unaligned.h> |
2154be65 | 49 | #include <linux/device.h> |
bf139726 | 50 | #include <linux/leds.h> |
2154be65 JW |
51 | #include <linux/module.h> |
52 | #include <linux/slab.h> | |
53 | #include <linux/usb.h> | |
54 | #include <linux/usb/input.h> | |
55 | #include <media/rc-core.h> | |
56 | ||
57 | /* Driver Information */ | |
2154be65 JW |
58 | #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>" |
59 | #define DRIVER_AUTHOR2 "The Dweller, Stephen Cox" | |
60 | #define DRIVER_DESC "RedRat3 USB IR Transceiver Driver" | |
61 | #define DRIVER_NAME "redrat3" | |
62 | ||
2154be65 JW |
63 | /* bulk data transfer types */ |
64 | #define RR3_ERROR 0x01 | |
65 | #define RR3_MOD_SIGNAL_IN 0x20 | |
66 | #define RR3_MOD_SIGNAL_OUT 0x21 | |
67 | ||
68 | /* Get the RR firmware version */ | |
69 | #define RR3_FW_VERSION 0xb1 | |
70 | #define RR3_FW_VERSION_LEN 64 | |
71 | /* Send encoded signal bulk-sent earlier*/ | |
72 | #define RR3_TX_SEND_SIGNAL 0xb3 | |
73 | #define RR3_SET_IR_PARAM 0xb7 | |
74 | #define RR3_GET_IR_PARAM 0xb8 | |
75 | /* Blink the red LED on the device */ | |
76 | #define RR3_BLINK_LED 0xb9 | |
77 | /* Read serial number of device */ | |
78 | #define RR3_READ_SER_NO 0xba | |
79 | #define RR3_SER_NO_LEN 4 | |
80 | /* Start capture with the RC receiver */ | |
81 | #define RR3_RC_DET_ENABLE 0xbb | |
82 | /* Stop capture with the RC receiver */ | |
83 | #define RR3_RC_DET_DISABLE 0xbc | |
84 | /* Return the status of RC detector capture */ | |
85 | #define RR3_RC_DET_STATUS 0xbd | |
86 | /* Reset redrat */ | |
87 | #define RR3_RESET 0xa0 | |
88 | ||
89 | /* Max number of lengths in the signal. */ | |
90 | #define RR3_IR_IO_MAX_LENGTHS 0x01 | |
91 | /* Periods to measure mod. freq. */ | |
92 | #define RR3_IR_IO_PERIODS_MF 0x02 | |
93 | /* Size of memory for main signal data */ | |
94 | #define RR3_IR_IO_SIG_MEM_SIZE 0x03 | |
95 | /* Delta value when measuring lengths */ | |
96 | #define RR3_IR_IO_LENGTH_FUZZ 0x04 | |
97 | /* Timeout for end of signal detection */ | |
98 | #define RR3_IR_IO_SIG_TIMEOUT 0x05 | |
39c1cb2b | 99 | /* Minimum value for pause recognition. */ |
2154be65 JW |
100 | #define RR3_IR_IO_MIN_PAUSE 0x06 |
101 | ||
102 | /* Clock freq. of EZ-USB chip */ | |
103 | #define RR3_CLK 24000000 | |
104 | /* Clock periods per timer count */ | |
105 | #define RR3_CLK_PER_COUNT 12 | |
106 | /* (RR3_CLK / RR3_CLK_PER_COUNT) */ | |
107 | #define RR3_CLK_CONV_FACTOR 2000000 | |
108 | /* USB bulk-in IR data endpoint address */ | |
109 | #define RR3_BULK_IN_EP_ADDR 0x82 | |
110 | ||
2154be65 | 111 | /* Size of the fixed-length portion of the signal */ |
2154be65 JW |
112 | #define RR3_DRIVER_MAXLENS 128 |
113 | #define RR3_MAX_SIG_SIZE 512 | |
2154be65 JW |
114 | #define RR3_TIME_UNIT 50 |
115 | #define RR3_END_OF_SIGNAL 0x7f | |
2154be65 JW |
116 | #define RR3_TX_TRAILER_LEN 2 |
117 | #define RR3_RX_MIN_TIMEOUT 5 | |
118 | #define RR3_RX_MAX_TIMEOUT 2000 | |
119 | ||
120 | /* The 8051's CPUCS Register address */ | |
121 | #define RR3_CPUCS_REG_ADDR 0x7f92 | |
122 | ||
123 | #define USB_RR3USB_VENDOR_ID 0x112a | |
124 | #define USB_RR3USB_PRODUCT_ID 0x0001 | |
125 | #define USB_RR3IIUSB_PRODUCT_ID 0x0005 | |
126 | ||
4c055a5a SY |
127 | struct redrat3_header { |
128 | __be16 length; | |
129 | __be16 transfer_type; | |
130 | } __packed; | |
131 | ||
132 | /* sending and receiving irdata */ | |
133 | struct redrat3_irdata { | |
134 | struct redrat3_header header; | |
135 | __be32 pause; | |
136 | __be16 mod_freq_count; | |
137 | __be16 num_periods; | |
138 | __u8 max_lengths; | |
139 | __u8 no_lengths; | |
140 | __be16 max_sig_size; | |
141 | __be16 sig_size; | |
142 | __u8 no_repeats; | |
143 | __be16 lens[RR3_DRIVER_MAXLENS]; /* not aligned */ | |
144 | __u8 sigdata[RR3_MAX_SIG_SIZE]; | |
145 | } __packed; | |
146 | ||
147 | /* firmware errors */ | |
148 | struct redrat3_error { | |
149 | struct redrat3_header header; | |
150 | __be16 fw_error; | |
151 | } __packed; | |
152 | ||
2154be65 JW |
153 | /* table of devices that work with this driver */ |
154 | static struct usb_device_id redrat3_dev_table[] = { | |
155 | /* Original version of the RedRat3 */ | |
156 | {USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3USB_PRODUCT_ID)}, | |
157 | /* Second Version/release of the RedRat3 - RetRat3-II */ | |
158 | {USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3IIUSB_PRODUCT_ID)}, | |
159 | {} /* Terminating entry */ | |
160 | }; | |
161 | ||
162 | /* Structure to hold all of our device specific stuff */ | |
163 | struct redrat3_dev { | |
164 | /* core device bits */ | |
165 | struct rc_dev *rc; | |
166 | struct device *dev; | |
167 | ||
bf139726 SY |
168 | /* led control */ |
169 | struct led_classdev led; | |
170 | atomic_t flash; | |
171 | struct usb_ctrlrequest flash_control; | |
172 | struct urb *flash_urb; | |
173 | u8 flash_in_buf; | |
174 | ||
2154be65 JW |
175 | /* save off the usb device pointer */ |
176 | struct usb_device *udev; | |
177 | ||
178 | /* the receive endpoint */ | |
179 | struct usb_endpoint_descriptor *ep_in; | |
180 | /* the buffer to receive data */ | |
4c055a5a | 181 | void *bulk_in_buf; |
2154be65 JW |
182 | /* urb used to read ir data */ |
183 | struct urb *read_urb; | |
184 | ||
185 | /* the send endpoint */ | |
186 | struct usb_endpoint_descriptor *ep_out; | |
2154be65 JW |
187 | |
188 | /* usb dma */ | |
189 | dma_addr_t dma_in; | |
2154be65 | 190 | |
25da661a | 191 | /* rx signal timeout */ |
c53f9f00 | 192 | u32 hw_timeout; |
2154be65 | 193 | |
2154be65 JW |
194 | /* Is the device currently transmitting?*/ |
195 | bool transmitting; | |
196 | ||
197 | /* store for current packet */ | |
4c055a5a | 198 | struct redrat3_irdata irdata; |
2154be65 | 199 | u16 bytes_read; |
2154be65 JW |
200 | |
201 | u32 carrier; | |
202 | ||
4c055a5a | 203 | char name[64]; |
2154be65 JW |
204 | char phys[64]; |
205 | }; | |
206 | ||
2154be65 JW |
207 | /* |
208 | * redrat3_issue_async | |
209 | * | |
210 | * Issues an async read to the ir data in port.. | |
211 | * sets the callback to be redrat3_handle_async | |
212 | */ | |
213 | static void redrat3_issue_async(struct redrat3_dev *rr3) | |
214 | { | |
215 | int res; | |
216 | ||
2154be65 JW |
217 | res = usb_submit_urb(rr3->read_urb, GFP_ATOMIC); |
218 | if (res) | |
3228bf81 GKH |
219 | dev_dbg(rr3->dev, |
220 | "%s: receive request FAILED! (res %d, len %d)\n", | |
221 | __func__, res, rr3->read_urb->transfer_buffer_length); | |
2154be65 JW |
222 | } |
223 | ||
224 | static void redrat3_dump_fw_error(struct redrat3_dev *rr3, int code) | |
225 | { | |
226 | if (!rr3->transmitting && (code != 0x40)) | |
227 | dev_info(rr3->dev, "fw error code 0x%02x: ", code); | |
228 | ||
229 | switch (code) { | |
230 | case 0x00: | |
231 | pr_cont("No Error\n"); | |
232 | break; | |
233 | ||
234 | /* Codes 0x20 through 0x2f are IR Firmware Errors */ | |
235 | case 0x20: | |
236 | pr_cont("Initial signal pulse not long enough " | |
237 | "to measure carrier frequency\n"); | |
238 | break; | |
239 | case 0x21: | |
240 | pr_cont("Not enough length values allocated for signal\n"); | |
241 | break; | |
242 | case 0x22: | |
243 | pr_cont("Not enough memory allocated for signal data\n"); | |
244 | break; | |
245 | case 0x23: | |
246 | pr_cont("Too many signal repeats\n"); | |
247 | break; | |
248 | case 0x28: | |
249 | pr_cont("Insufficient memory available for IR signal " | |
250 | "data memory allocation\n"); | |
251 | break; | |
252 | case 0x29: | |
253 | pr_cont("Insufficient memory available " | |
254 | "for IrDa signal data memory allocation\n"); | |
255 | break; | |
256 | ||
257 | /* Codes 0x30 through 0x3f are USB Firmware Errors */ | |
258 | case 0x30: | |
259 | pr_cont("Insufficient memory available for bulk " | |
260 | "transfer structure\n"); | |
261 | break; | |
262 | ||
263 | /* | |
264 | * Other error codes... These are primarily errors that can occur in | |
265 | * the control messages sent to the redrat | |
266 | */ | |
267 | case 0x40: | |
268 | if (!rr3->transmitting) | |
269 | pr_cont("Signal capture has been terminated\n"); | |
270 | break; | |
271 | case 0x41: | |
272 | pr_cont("Attempt to set/get and unknown signal I/O " | |
273 | "algorithm parameter\n"); | |
274 | break; | |
275 | case 0x42: | |
276 | pr_cont("Signal capture already started\n"); | |
277 | break; | |
278 | ||
279 | default: | |
280 | pr_cont("Unknown Error\n"); | |
281 | break; | |
282 | } | |
283 | } | |
284 | ||
4c055a5a | 285 | static u32 redrat3_val_to_mod_freq(struct redrat3_irdata *irdata) |
2154be65 JW |
286 | { |
287 | u32 mod_freq = 0; | |
4c055a5a | 288 | u16 mod_freq_count = be16_to_cpu(irdata->mod_freq_count); |
2154be65 | 289 | |
4c055a5a SY |
290 | if (mod_freq_count != 0) |
291 | mod_freq = (RR3_CLK * be16_to_cpu(irdata->num_periods)) / | |
292 | (mod_freq_count * RR3_CLK_PER_COUNT); | |
2154be65 JW |
293 | |
294 | return mod_freq; | |
295 | } | |
296 | ||
297 | /* this function scales down the figures for the same result... */ | |
298 | static u32 redrat3_len_to_us(u32 length) | |
299 | { | |
300 | u32 biglen = length * 1000; | |
301 | u32 divisor = (RR3_CLK_CONV_FACTOR) / 1000; | |
302 | u32 result = (u32) (biglen / divisor); | |
303 | ||
304 | /* don't allow zero lengths to go back, breaks lirc */ | |
305 | return result ? result : 1; | |
306 | } | |
307 | ||
308 | /* | |
309 | * convert us back into redrat3 lengths | |
310 | * | |
311 | * length * 1000 length * 1000000 | |
312 | * ------------- = ---------------- = micro | |
313 | * rr3clk / 1000 rr3clk | |
314 | ||
315 | * 6 * 2 4 * 3 micro * rr3clk micro * rr3clk / 1000 | |
316 | * ----- = 4 ----- = 6 -------------- = len --------------------- | |
317 | * 3 2 1000000 1000 | |
318 | */ | |
319 | static u32 redrat3_us_to_len(u32 microsec) | |
320 | { | |
321 | u32 result; | |
322 | u32 divisor; | |
323 | ||
95cf60aa | 324 | microsec = (microsec > IR_MAX_DURATION) ? IR_MAX_DURATION : microsec; |
2154be65 JW |
325 | divisor = (RR3_CLK_CONV_FACTOR / 1000); |
326 | result = (u32)(microsec * divisor) / 1000; | |
327 | ||
328 | /* don't allow zero lengths to go back, breaks lirc */ | |
329 | return result ? result : 1; | |
2154be65 JW |
330 | } |
331 | ||
2154be65 JW |
332 | static void redrat3_process_ir_data(struct redrat3_dev *rr3) |
333 | { | |
334 | DEFINE_IR_RAW_EVENT(rawir); | |
2154be65 | 335 | struct device *dev; |
25da661a | 336 | unsigned int i, sig_size, single_len, offset, val; |
4c055a5a | 337 | u32 mod_freq; |
2154be65 JW |
338 | |
339 | if (!rr3) { | |
340 | pr_err("%s called with no context!\n", __func__); | |
341 | return; | |
342 | } | |
343 | ||
2154be65 | 344 | dev = rr3->dev; |
2154be65 | 345 | |
4c055a5a | 346 | mod_freq = redrat3_val_to_mod_freq(&rr3->irdata); |
3228bf81 | 347 | dev_dbg(dev, "Got mod_freq of %u\n", mod_freq); |
2154be65 | 348 | |
2154be65 | 349 | /* process each rr3 encoded byte into an int */ |
4c055a5a SY |
350 | sig_size = be16_to_cpu(rr3->irdata.sig_size); |
351 | for (i = 0; i < sig_size; i++) { | |
352 | offset = rr3->irdata.sigdata[i]; | |
353 | val = get_unaligned_be16(&rr3->irdata.lens[offset]); | |
354 | single_len = redrat3_len_to_us(val); | |
2154be65 | 355 | |
2154be65 JW |
356 | /* we should always get pulse/space/pulse/space samples */ |
357 | if (i % 2) | |
358 | rawir.pulse = false; | |
359 | else | |
360 | rawir.pulse = true; | |
361 | ||
362 | rawir.duration = US_TO_NS(single_len); | |
2c594ffa | 363 | /* cap the value to IR_MAX_DURATION */ |
95cf60aa MCC |
364 | rawir.duration = (rawir.duration > IR_MAX_DURATION) ? |
365 | IR_MAX_DURATION : rawir.duration; | |
2c594ffa | 366 | |
3228bf81 | 367 | dev_dbg(dev, "storing %s with duration %d (i: %d)\n", |
2154be65 JW |
368 | rawir.pulse ? "pulse" : "space", rawir.duration, i); |
369 | ir_raw_event_store_with_filter(rr3->rc, &rawir); | |
370 | } | |
371 | ||
25da661a SY |
372 | /* add a trailing space */ |
373 | rawir.pulse = false; | |
374 | rawir.timeout = true; | |
375 | rawir.duration = US_TO_NS(rr3->hw_timeout); | |
376 | dev_dbg(dev, "storing trailing timeout with duration %d\n", | |
377 | rawir.duration); | |
378 | ir_raw_event_store_with_filter(rr3->rc, &rawir); | |
2154be65 | 379 | |
3228bf81 | 380 | dev_dbg(dev, "calling ir_raw_event_handle\n"); |
2154be65 | 381 | ir_raw_event_handle(rr3->rc); |
2154be65 JW |
382 | } |
383 | ||
384 | /* Util fn to send rr3 cmds */ | |
6948524d | 385 | static int redrat3_send_cmd(int cmd, struct redrat3_dev *rr3) |
2154be65 JW |
386 | { |
387 | struct usb_device *udev; | |
388 | u8 *data; | |
389 | int res; | |
390 | ||
391 | data = kzalloc(sizeof(u8), GFP_KERNEL); | |
392 | if (!data) | |
393 | return -ENOMEM; | |
394 | ||
395 | udev = rr3->udev; | |
396 | res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), cmd, | |
397 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
398 | 0x0000, 0x0000, data, sizeof(u8), HZ * 10); | |
399 | ||
400 | if (res < 0) { | |
401 | dev_err(rr3->dev, "%s: Error sending rr3 cmd res %d, data %d", | |
402 | __func__, res, *data); | |
403 | res = -EIO; | |
404 | } else | |
4c055a5a | 405 | res = data[0]; |
2154be65 JW |
406 | |
407 | kfree(data); | |
408 | ||
409 | return res; | |
410 | } | |
411 | ||
412 | /* Enables the long range detector and starts async receive */ | |
413 | static int redrat3_enable_detector(struct redrat3_dev *rr3) | |
414 | { | |
415 | struct device *dev = rr3->dev; | |
416 | u8 ret; | |
417 | ||
2154be65 JW |
418 | ret = redrat3_send_cmd(RR3_RC_DET_ENABLE, rr3); |
419 | if (ret != 0) | |
420 | dev_dbg(dev, "%s: unexpected ret of %d\n", | |
421 | __func__, ret); | |
422 | ||
423 | ret = redrat3_send_cmd(RR3_RC_DET_STATUS, rr3); | |
424 | if (ret != 1) { | |
425 | dev_err(dev, "%s: detector status: %d, should be 1\n", | |
426 | __func__, ret); | |
427 | return -EIO; | |
428 | } | |
429 | ||
2154be65 JW |
430 | redrat3_issue_async(rr3); |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
2154be65 JW |
435 | static inline void redrat3_delete(struct redrat3_dev *rr3, |
436 | struct usb_device *udev) | |
437 | { | |
2154be65 | 438 | usb_kill_urb(rr3->read_urb); |
bf139726 | 439 | usb_kill_urb(rr3->flash_urb); |
2154be65 | 440 | usb_free_urb(rr3->read_urb); |
bf139726 | 441 | usb_free_urb(rr3->flash_urb); |
fa7b9ac2 | 442 | usb_free_coherent(udev, le16_to_cpu(rr3->ep_in->wMaxPacketSize), |
2154be65 | 443 | rr3->bulk_in_buf, rr3->dma_in); |
2154be65 JW |
444 | |
445 | kfree(rr3); | |
446 | } | |
447 | ||
c53f9f00 | 448 | static u32 redrat3_get_timeout(struct redrat3_dev *rr3) |
2154be65 | 449 | { |
801b69f2 | 450 | __be32 *tmp; |
c53f9f00 | 451 | u32 timeout = MS_TO_US(150); /* a sane default, if things go haywire */ |
2154be65 JW |
452 | int len, ret, pipe; |
453 | ||
454 | len = sizeof(*tmp); | |
455 | tmp = kzalloc(len, GFP_KERNEL); | |
456 | if (!tmp) { | |
c53f9f00 | 457 | dev_warn(rr3->dev, "Memory allocation faillure\n"); |
2154be65 JW |
458 | return timeout; |
459 | } | |
460 | ||
c53f9f00 JW |
461 | pipe = usb_rcvctrlpipe(rr3->udev, 0); |
462 | ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM, | |
2154be65 JW |
463 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
464 | RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5); | |
801b69f2 | 465 | if (ret != len) |
c53f9f00 | 466 | dev_warn(rr3->dev, "Failed to read timeout from hardware\n"); |
801b69f2 SY |
467 | else { |
468 | timeout = redrat3_len_to_us(be32_to_cpup(tmp)); | |
469 | ||
3228bf81 | 470 | dev_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000); |
2154be65 JW |
471 | } |
472 | ||
801b69f2 | 473 | kfree(tmp); |
2154be65 | 474 | |
2154be65 JW |
475 | return timeout; |
476 | } | |
477 | ||
4f253cec SY |
478 | static int redrat3_set_timeout(struct rc_dev *rc_dev, unsigned int timeoutns) |
479 | { | |
480 | struct redrat3_dev *rr3 = rc_dev->priv; | |
481 | struct usb_device *udev = rr3->udev; | |
482 | struct device *dev = rr3->dev; | |
b1cb50be | 483 | __be32 *timeout; |
4f253cec SY |
484 | int ret; |
485 | ||
486 | timeout = kmalloc(sizeof(*timeout), GFP_KERNEL); | |
487 | if (!timeout) | |
488 | return -ENOMEM; | |
489 | ||
490 | *timeout = cpu_to_be32(redrat3_us_to_len(timeoutns / 1000)); | |
491 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RR3_SET_IR_PARAM, | |
492 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
493 | RR3_IR_IO_SIG_TIMEOUT, 0, timeout, sizeof(*timeout), | |
494 | HZ * 25); | |
495 | dev_dbg(dev, "set ir parm timeout %d ret 0x%02x\n", | |
496 | be32_to_cpu(*timeout), ret); | |
497 | ||
498 | if (ret == sizeof(*timeout)) { | |
499 | rr3->hw_timeout = timeoutns / 1000; | |
500 | ret = 0; | |
501 | } else if (ret >= 0) | |
502 | ret = -EIO; | |
503 | ||
504 | kfree(timeout); | |
505 | ||
506 | return ret; | |
507 | } | |
508 | ||
2154be65 JW |
509 | static void redrat3_reset(struct redrat3_dev *rr3) |
510 | { | |
511 | struct usb_device *udev = rr3->udev; | |
512 | struct device *dev = rr3->dev; | |
513 | int rc, rxpipe, txpipe; | |
514 | u8 *val; | |
515 | int len = sizeof(u8); | |
516 | ||
2154be65 JW |
517 | rxpipe = usb_rcvctrlpipe(udev, 0); |
518 | txpipe = usb_sndctrlpipe(udev, 0); | |
519 | ||
fa7b9ac2 | 520 | val = kmalloc(len, GFP_KERNEL); |
2154be65 JW |
521 | if (!val) { |
522 | dev_err(dev, "Memory allocation failure\n"); | |
523 | return; | |
524 | } | |
525 | ||
526 | *val = 0x01; | |
527 | rc = usb_control_msg(udev, rxpipe, RR3_RESET, | |
528 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
529 | RR3_CPUCS_REG_ADDR, 0, val, len, HZ * 25); | |
3228bf81 | 530 | dev_dbg(dev, "reset returned 0x%02x\n", rc); |
2154be65 JW |
531 | |
532 | *val = 5; | |
533 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, | |
534 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
535 | RR3_IR_IO_LENGTH_FUZZ, 0, val, len, HZ * 25); | |
3228bf81 | 536 | dev_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc); |
2154be65 JW |
537 | |
538 | *val = RR3_DRIVER_MAXLENS; | |
539 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, | |
540 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
541 | RR3_IR_IO_MAX_LENGTHS, 0, val, len, HZ * 25); | |
3228bf81 | 542 | dev_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc); |
2154be65 JW |
543 | |
544 | kfree(val); | |
545 | } | |
546 | ||
547 | static void redrat3_get_firmware_rev(struct redrat3_dev *rr3) | |
548 | { | |
549 | int rc = 0; | |
550 | char *buffer; | |
551 | ||
2154be65 JW |
552 | buffer = kzalloc(sizeof(char) * (RR3_FW_VERSION_LEN + 1), GFP_KERNEL); |
553 | if (!buffer) { | |
554 | dev_err(rr3->dev, "Memory allocation failure\n"); | |
555 | return; | |
556 | } | |
557 | ||
558 | rc = usb_control_msg(rr3->udev, usb_rcvctrlpipe(rr3->udev, 0), | |
559 | RR3_FW_VERSION, | |
560 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
561 | 0, 0, buffer, RR3_FW_VERSION_LEN, HZ * 5); | |
562 | ||
563 | if (rc >= 0) | |
564 | dev_info(rr3->dev, "Firmware rev: %s", buffer); | |
565 | else | |
566 | dev_err(rr3->dev, "Problem fetching firmware ID\n"); | |
567 | ||
568 | kfree(buffer); | |
2154be65 JW |
569 | } |
570 | ||
fa7b9ac2 | 571 | static void redrat3_read_packet_start(struct redrat3_dev *rr3, unsigned len) |
2154be65 | 572 | { |
4c055a5a SY |
573 | struct redrat3_header *header = rr3->bulk_in_buf; |
574 | unsigned pktlen, pkttype; | |
2154be65 | 575 | |
2154be65 | 576 | /* grab the Length and type of transfer */ |
4c055a5a SY |
577 | pktlen = be16_to_cpu(header->length); |
578 | pkttype = be16_to_cpu(header->transfer_type); | |
2154be65 | 579 | |
4c055a5a SY |
580 | if (pktlen > sizeof(rr3->irdata)) { |
581 | dev_warn(rr3->dev, "packet length %u too large\n", pktlen); | |
582 | return; | |
583 | } | |
2154be65 | 584 | |
4c055a5a | 585 | switch (pkttype) { |
2154be65 | 586 | case RR3_ERROR: |
4c055a5a SY |
587 | if (len >= sizeof(struct redrat3_error)) { |
588 | struct redrat3_error *error = rr3->bulk_in_buf; | |
589 | unsigned fw_error = be16_to_cpu(error->fw_error); | |
590 | redrat3_dump_fw_error(rr3, fw_error); | |
591 | } | |
2154be65 JW |
592 | break; |
593 | ||
594 | case RR3_MOD_SIGNAL_IN: | |
4c055a5a | 595 | memcpy(&rr3->irdata, rr3->bulk_in_buf, len); |
2154be65 | 596 | rr3->bytes_read = len; |
3228bf81 | 597 | dev_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", |
4c055a5a | 598 | rr3->bytes_read, pktlen); |
2154be65 JW |
599 | break; |
600 | ||
601 | default: | |
3228bf81 | 602 | dev_dbg(rr3->dev, "ignoring packet with type 0x%02x, len of %d, 0x%02x\n", |
4c055a5a | 603 | pkttype, len, pktlen); |
2154be65 JW |
604 | break; |
605 | } | |
606 | } | |
607 | ||
fa7b9ac2 | 608 | static void redrat3_read_packet_continue(struct redrat3_dev *rr3, unsigned len) |
2154be65 | 609 | { |
4c055a5a SY |
610 | void *irdata = &rr3->irdata; |
611 | ||
4c055a5a SY |
612 | if (len + rr3->bytes_read > sizeof(rr3->irdata)) { |
613 | dev_warn(rr3->dev, "too much data for packet\n"); | |
614 | rr3->bytes_read = 0; | |
615 | return; | |
616 | } | |
617 | ||
618 | memcpy(irdata + rr3->bytes_read, rr3->bulk_in_buf, len); | |
2154be65 JW |
619 | |
620 | rr3->bytes_read += len; | |
3228bf81 | 621 | dev_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", rr3->bytes_read, |
4c055a5a | 622 | be16_to_cpu(rr3->irdata.header.length)); |
2154be65 JW |
623 | } |
624 | ||
625 | /* gather IR data from incoming urb, process it when we have enough */ | |
fa7b9ac2 | 626 | static int redrat3_get_ir_data(struct redrat3_dev *rr3, unsigned len) |
2154be65 JW |
627 | { |
628 | struct device *dev = rr3->dev; | |
4c055a5a | 629 | unsigned pkttype; |
2154be65 JW |
630 | int ret = 0; |
631 | ||
4c055a5a | 632 | if (rr3->bytes_read == 0 && len >= sizeof(struct redrat3_header)) { |
2154be65 JW |
633 | redrat3_read_packet_start(rr3, len); |
634 | } else if (rr3->bytes_read != 0) { | |
635 | redrat3_read_packet_continue(rr3, len); | |
636 | } else if (rr3->bytes_read == 0) { | |
637 | dev_err(dev, "error: no packet data read\n"); | |
638 | ret = -ENODATA; | |
639 | goto out; | |
640 | } | |
641 | ||
38e35a85 SY |
642 | if (rr3->bytes_read < be16_to_cpu(rr3->irdata.header.length) + |
643 | sizeof(struct redrat3_header)) | |
2154be65 JW |
644 | /* we're still accumulating data */ |
645 | return 0; | |
646 | ||
647 | /* if we get here, we've got IR data to decode */ | |
4c055a5a SY |
648 | pkttype = be16_to_cpu(rr3->irdata.header.transfer_type); |
649 | if (pkttype == RR3_MOD_SIGNAL_IN) | |
2154be65 JW |
650 | redrat3_process_ir_data(rr3); |
651 | else | |
3228bf81 | 652 | dev_dbg(dev, "discarding non-signal data packet (type 0x%02x)\n", |
4c055a5a | 653 | pkttype); |
2154be65 JW |
654 | |
655 | out: | |
656 | rr3->bytes_read = 0; | |
2154be65 JW |
657 | return ret; |
658 | } | |
659 | ||
660 | /* callback function from USB when async USB request has completed */ | |
801b69f2 | 661 | static void redrat3_handle_async(struct urb *urb) |
2154be65 JW |
662 | { |
663 | struct redrat3_dev *rr3; | |
dbea1880 | 664 | int ret; |
2154be65 JW |
665 | |
666 | if (!urb) | |
667 | return; | |
668 | ||
669 | rr3 = urb->context; | |
670 | if (!rr3) { | |
671 | pr_err("%s called with invalid context!\n", __func__); | |
672 | usb_unlink_urb(urb); | |
673 | return; | |
674 | } | |
675 | ||
2154be65 JW |
676 | switch (urb->status) { |
677 | case 0: | |
dbea1880 AV |
678 | ret = redrat3_get_ir_data(rr3, urb->actual_length); |
679 | if (!ret) { | |
680 | /* no error, prepare to read more */ | |
681 | redrat3_issue_async(rr3); | |
682 | } | |
2154be65 JW |
683 | break; |
684 | ||
685 | case -ECONNRESET: | |
686 | case -ENOENT: | |
687 | case -ESHUTDOWN: | |
688 | usb_unlink_urb(urb); | |
689 | return; | |
690 | ||
691 | case -EPIPE: | |
692 | default: | |
693 | dev_warn(rr3->dev, "Error: urb status = %d\n", urb->status); | |
694 | rr3->bytes_read = 0; | |
2154be65 JW |
695 | break; |
696 | } | |
2154be65 JW |
697 | } |
698 | ||
2154be65 JW |
699 | static u16 mod_freq_to_val(unsigned int mod_freq) |
700 | { | |
701 | int mult = 6000000; | |
702 | ||
703 | /* Clk used in mod. freq. generation is CLK24/4. */ | |
4c055a5a | 704 | return 65536 - (mult / mod_freq); |
2154be65 JW |
705 | } |
706 | ||
dbea1880 | 707 | static int redrat3_set_tx_carrier(struct rc_dev *rcdev, u32 carrier) |
2154be65 | 708 | { |
dbea1880 AV |
709 | struct redrat3_dev *rr3 = rcdev->priv; |
710 | struct device *dev = rr3->dev; | |
2154be65 | 711 | |
3228bf81 | 712 | dev_dbg(dev, "Setting modulation frequency to %u", carrier); |
48cafec9 DC |
713 | if (carrier == 0) |
714 | return -EINVAL; | |
715 | ||
2154be65 JW |
716 | rr3->carrier = carrier; |
717 | ||
14d8188a | 718 | return 0; |
2154be65 JW |
719 | } |
720 | ||
dbea1880 AV |
721 | static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf, |
722 | unsigned count) | |
2154be65 JW |
723 | { |
724 | struct redrat3_dev *rr3 = rcdev->priv; | |
725 | struct device *dev = rr3->dev; | |
4c055a5a | 726 | struct redrat3_irdata *irdata = NULL; |
fa7b9ac2 | 727 | int ret, ret_len; |
2154be65 | 728 | int lencheck, cur_sample_len, pipe; |
2154be65 | 729 | int *sample_lens = NULL; |
2154be65 | 730 | u8 curlencheck = 0; |
fa7b9ac2 | 731 | unsigned i, sendbuf_len; |
2154be65 | 732 | |
2154be65 JW |
733 | if (rr3->transmitting) { |
734 | dev_warn(dev, "%s: transmitter already in use\n", __func__); | |
735 | return -EAGAIN; | |
736 | } | |
737 | ||
671ea670 SY |
738 | if (count > RR3_MAX_SIG_SIZE - RR3_TX_TRAILER_LEN) |
739 | return -EINVAL; | |
2154be65 | 740 | |
dbea1880 | 741 | /* rr3 will disable rc detector on transmit */ |
2154be65 JW |
742 | rr3->transmitting = true; |
743 | ||
2154be65 JW |
744 | sample_lens = kzalloc(sizeof(int) * RR3_DRIVER_MAXLENS, GFP_KERNEL); |
745 | if (!sample_lens) { | |
746 | ret = -ENOMEM; | |
747 | goto out; | |
748 | } | |
749 | ||
4c055a5a SY |
750 | irdata = kzalloc(sizeof(*irdata), GFP_KERNEL); |
751 | if (!irdata) { | |
801b69f2 SY |
752 | ret = -ENOMEM; |
753 | goto out; | |
754 | } | |
755 | ||
2154be65 | 756 | for (i = 0; i < count; i++) { |
06eae25f | 757 | cur_sample_len = redrat3_us_to_len(txbuf[i]); |
801b69f2 SY |
758 | if (cur_sample_len > 0xffff) { |
759 | dev_warn(dev, "transmit period of %uus truncated to %uus\n", | |
760 | txbuf[i], redrat3_len_to_us(0xffff)); | |
761 | cur_sample_len = 0xffff; | |
762 | } | |
2154be65 | 763 | for (lencheck = 0; lencheck < curlencheck; lencheck++) { |
2154be65 JW |
764 | if (sample_lens[lencheck] == cur_sample_len) |
765 | break; | |
766 | } | |
767 | if (lencheck == curlencheck) { | |
3228bf81 | 768 | dev_dbg(dev, "txbuf[%d]=%u, pos %d, enc %u\n", |
2154be65 | 769 | i, txbuf[i], curlencheck, cur_sample_len); |
06eae25f | 770 | if (curlencheck < RR3_DRIVER_MAXLENS) { |
2154be65 JW |
771 | /* now convert the value to a proper |
772 | * rr3 value.. */ | |
773 | sample_lens[curlencheck] = cur_sample_len; | |
4c055a5a SY |
774 | put_unaligned_be16(cur_sample_len, |
775 | &irdata->lens[curlencheck]); | |
2154be65 JW |
776 | curlencheck++; |
777 | } else { | |
671ea670 SY |
778 | ret = -EINVAL; |
779 | goto out; | |
2154be65 JW |
780 | } |
781 | } | |
4c055a5a | 782 | irdata->sigdata[i] = lencheck; |
2154be65 JW |
783 | } |
784 | ||
4c055a5a SY |
785 | irdata->sigdata[count] = RR3_END_OF_SIGNAL; |
786 | irdata->sigdata[count + 1] = RR3_END_OF_SIGNAL; | |
2154be65 | 787 | |
4c055a5a SY |
788 | sendbuf_len = offsetof(struct redrat3_irdata, |
789 | sigdata[count + RR3_TX_TRAILER_LEN]); | |
2154be65 | 790 | /* fill in our packet header */ |
4c055a5a SY |
791 | irdata->header.length = cpu_to_be16(sendbuf_len - |
792 | sizeof(struct redrat3_header)); | |
793 | irdata->header.transfer_type = cpu_to_be16(RR3_MOD_SIGNAL_OUT); | |
794 | irdata->pause = cpu_to_be32(redrat3_len_to_us(100)); | |
795 | irdata->mod_freq_count = cpu_to_be16(mod_freq_to_val(rr3->carrier)); | |
796 | irdata->no_lengths = curlencheck; | |
797 | irdata->sig_size = cpu_to_be16(count + RR3_TX_TRAILER_LEN); | |
2154be65 JW |
798 | |
799 | pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress); | |
4c055a5a | 800 | ret = usb_bulk_msg(rr3->udev, pipe, irdata, |
2154be65 | 801 | sendbuf_len, &ret_len, 10 * HZ); |
3228bf81 | 802 | dev_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret); |
2154be65 JW |
803 | |
804 | /* now tell the hardware to transmit what we sent it */ | |
805 | pipe = usb_rcvctrlpipe(rr3->udev, 0); | |
806 | ret = usb_control_msg(rr3->udev, pipe, RR3_TX_SEND_SIGNAL, | |
807 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
4c055a5a | 808 | 0, 0, irdata, 2, HZ * 10); |
2154be65 JW |
809 | |
810 | if (ret < 0) | |
811 | dev_err(dev, "Error: control msg send failed, rc %d\n", ret); | |
812 | else | |
dbea1880 | 813 | ret = count; |
2154be65 JW |
814 | |
815 | out: | |
816 | kfree(sample_lens); | |
4c055a5a | 817 | kfree(irdata); |
2154be65 JW |
818 | |
819 | rr3->transmitting = false; | |
dbea1880 | 820 | /* rr3 re-enables rc detector because it was enabled before */ |
2154be65 JW |
821 | |
822 | return ret; | |
823 | } | |
824 | ||
bf139726 SY |
825 | static void redrat3_brightness_set(struct led_classdev *led_dev, enum |
826 | led_brightness brightness) | |
827 | { | |
828 | struct redrat3_dev *rr3 = container_of(led_dev, struct redrat3_dev, | |
829 | led); | |
830 | ||
831 | if (brightness != LED_OFF && atomic_cmpxchg(&rr3->flash, 0, 1) == 0) { | |
832 | int ret = usb_submit_urb(rr3->flash_urb, GFP_ATOMIC); | |
833 | if (ret != 0) { | |
834 | dev_dbg(rr3->dev, "%s: unexpected ret of %d\n", | |
835 | __func__, ret); | |
836 | atomic_set(&rr3->flash, 0); | |
837 | } | |
838 | } | |
839 | } | |
840 | ||
841 | static void redrat3_led_complete(struct urb *urb) | |
842 | { | |
843 | struct redrat3_dev *rr3 = urb->context; | |
844 | ||
845 | switch (urb->status) { | |
846 | case 0: | |
847 | break; | |
848 | case -ECONNRESET: | |
849 | case -ENOENT: | |
850 | case -ESHUTDOWN: | |
851 | usb_unlink_urb(urb); | |
852 | return; | |
853 | case -EPIPE: | |
854 | default: | |
855 | dev_dbg(rr3->dev, "Error: urb status = %d\n", urb->status); | |
856 | break; | |
857 | } | |
858 | ||
859 | rr3->led.brightness = LED_OFF; | |
860 | atomic_dec(&rr3->flash); | |
861 | } | |
862 | ||
2154be65 JW |
863 | static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3) |
864 | { | |
865 | struct device *dev = rr3->dev; | |
866 | struct rc_dev *rc; | |
867 | int ret = -ENODEV; | |
868 | u16 prod = le16_to_cpu(rr3->udev->descriptor.idProduct); | |
869 | ||
870 | rc = rc_allocate_device(); | |
871 | if (!rc) { | |
872 | dev_err(dev, "remote input dev allocation failed\n"); | |
873 | goto out; | |
874 | } | |
875 | ||
876 | snprintf(rr3->name, sizeof(rr3->name), "RedRat3%s " | |
877 | "Infrared Remote Transceiver (%04x:%04x)", | |
878 | prod == USB_RR3IIUSB_PRODUCT_ID ? "-II" : "", | |
879 | le16_to_cpu(rr3->udev->descriptor.idVendor), prod); | |
880 | ||
881 | usb_make_path(rr3->udev, rr3->phys, sizeof(rr3->phys)); | |
882 | ||
883 | rc->input_name = rr3->name; | |
884 | rc->input_phys = rr3->phys; | |
885 | usb_to_input_id(rr3->udev, &rc->input_id); | |
886 | rc->dev.parent = dev; | |
887 | rc->priv = rr3; | |
888 | rc->driver_type = RC_DRIVER_IR_RAW; | |
c5540fbb | 889 | rc->allowed_protocols = RC_BIT_ALL; |
4f253cec SY |
890 | rc->min_timeout = MS_TO_NS(RR3_RX_MIN_TIMEOUT); |
891 | rc->max_timeout = MS_TO_NS(RR3_RX_MAX_TIMEOUT); | |
25da661a | 892 | rc->timeout = US_TO_NS(rr3->hw_timeout); |
4f253cec | 893 | rc->s_timeout = redrat3_set_timeout; |
2154be65 JW |
894 | rc->tx_ir = redrat3_transmit_ir; |
895 | rc->s_tx_carrier = redrat3_set_tx_carrier; | |
896 | rc->driver_name = DRIVER_NAME; | |
06eae25f | 897 | rc->rx_resolution = US_TO_NS(2); |
2154be65 JW |
898 | rc->map_name = RC_MAP_HAUPPAUGE; |
899 | ||
900 | ret = rc_register_device(rc); | |
901 | if (ret < 0) { | |
902 | dev_err(dev, "remote dev registration failed\n"); | |
903 | goto out; | |
904 | } | |
905 | ||
906 | return rc; | |
907 | ||
908 | out: | |
909 | rc_free_device(rc); | |
910 | return NULL; | |
911 | } | |
912 | ||
4c62e976 GKH |
913 | static int redrat3_dev_probe(struct usb_interface *intf, |
914 | const struct usb_device_id *id) | |
2154be65 JW |
915 | { |
916 | struct usb_device *udev = interface_to_usbdev(intf); | |
917 | struct device *dev = &intf->dev; | |
918 | struct usb_host_interface *uhi; | |
919 | struct redrat3_dev *rr3; | |
920 | struct usb_endpoint_descriptor *ep; | |
921 | struct usb_endpoint_descriptor *ep_in = NULL; | |
922 | struct usb_endpoint_descriptor *ep_out = NULL; | |
923 | u8 addr, attrs; | |
924 | int pipe, i; | |
925 | int retval = -ENOMEM; | |
926 | ||
2154be65 JW |
927 | uhi = intf->cur_altsetting; |
928 | ||
929 | /* find our bulk-in and bulk-out endpoints */ | |
930 | for (i = 0; i < uhi->desc.bNumEndpoints; ++i) { | |
931 | ep = &uhi->endpoint[i].desc; | |
932 | addr = ep->bEndpointAddress; | |
933 | attrs = ep->bmAttributes; | |
934 | ||
935 | if ((ep_in == NULL) && | |
936 | ((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && | |
937 | ((attrs & USB_ENDPOINT_XFERTYPE_MASK) == | |
938 | USB_ENDPOINT_XFER_BULK)) { | |
3228bf81 | 939 | dev_dbg(dev, "found bulk-in endpoint at 0x%02x\n", |
2154be65 JW |
940 | ep->bEndpointAddress); |
941 | /* data comes in on 0x82, 0x81 is for other data... */ | |
942 | if (ep->bEndpointAddress == RR3_BULK_IN_EP_ADDR) | |
943 | ep_in = ep; | |
944 | } | |
945 | ||
946 | if ((ep_out == NULL) && | |
947 | ((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) && | |
948 | ((attrs & USB_ENDPOINT_XFERTYPE_MASK) == | |
949 | USB_ENDPOINT_XFER_BULK)) { | |
3228bf81 | 950 | dev_dbg(dev, "found bulk-out endpoint at 0x%02x\n", |
2154be65 JW |
951 | ep->bEndpointAddress); |
952 | ep_out = ep; | |
953 | } | |
954 | } | |
955 | ||
956 | if (!ep_in || !ep_out) { | |
957 | dev_err(dev, "Couldn't find both in and out endpoints\n"); | |
958 | retval = -ENODEV; | |
959 | goto no_endpoints; | |
960 | } | |
961 | ||
962 | /* allocate memory for our device state and initialize it */ | |
963 | rr3 = kzalloc(sizeof(*rr3), GFP_KERNEL); | |
964 | if (rr3 == NULL) { | |
965 | dev_err(dev, "Memory allocation failure\n"); | |
7eb75715 | 966 | goto no_endpoints; |
2154be65 JW |
967 | } |
968 | ||
969 | rr3->dev = &intf->dev; | |
970 | ||
971 | /* set up bulk-in endpoint */ | |
972 | rr3->read_urb = usb_alloc_urb(0, GFP_KERNEL); | |
cd859c19 | 973 | if (!rr3->read_urb) |
2154be65 | 974 | goto error; |
2154be65 JW |
975 | |
976 | rr3->ep_in = ep_in; | |
fa7b9ac2 | 977 | rr3->bulk_in_buf = usb_alloc_coherent(udev, |
d0a0a65e | 978 | le16_to_cpu(ep_in->wMaxPacketSize), GFP_KERNEL, &rr3->dma_in); |
2154be65 JW |
979 | if (!rr3->bulk_in_buf) { |
980 | dev_err(dev, "Read buffer allocation failure\n"); | |
981 | goto error; | |
982 | } | |
983 | ||
984 | pipe = usb_rcvbulkpipe(udev, ep_in->bEndpointAddress); | |
fa7b9ac2 SY |
985 | usb_fill_bulk_urb(rr3->read_urb, udev, pipe, rr3->bulk_in_buf, |
986 | le16_to_cpu(ep_in->wMaxPacketSize), redrat3_handle_async, rr3); | |
d0a0a65e SY |
987 | rr3->read_urb->transfer_dma = rr3->dma_in; |
988 | rr3->read_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
2154be65 JW |
989 | |
990 | rr3->ep_out = ep_out; | |
2154be65 JW |
991 | rr3->udev = udev; |
992 | ||
993 | redrat3_reset(rr3); | |
994 | redrat3_get_firmware_rev(rr3); | |
995 | ||
996 | /* might be all we need to do? */ | |
997 | retval = redrat3_enable_detector(rr3); | |
998 | if (retval < 0) | |
999 | goto error; | |
1000 | ||
25da661a | 1001 | /* store current hardware timeout, in µs */ |
c53f9f00 JW |
1002 | rr3->hw_timeout = redrat3_get_timeout(rr3); |
1003 | ||
2154be65 JW |
1004 | /* default.. will get overridden by any sends with a freq defined */ |
1005 | rr3->carrier = 38000; | |
1006 | ||
bf139726 SY |
1007 | /* led control */ |
1008 | rr3->led.name = "redrat3:red:feedback"; | |
1009 | rr3->led.default_trigger = "rc-feedback"; | |
1010 | rr3->led.brightness_set = redrat3_brightness_set; | |
1011 | retval = led_classdev_register(&intf->dev, &rr3->led); | |
1012 | if (retval) | |
1013 | goto error; | |
1014 | ||
1015 | atomic_set(&rr3->flash, 0); | |
1016 | rr3->flash_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1017 | if (!rr3->flash_urb) { | |
1018 | retval = -ENOMEM; | |
1019 | goto led_free_error; | |
1020 | } | |
1021 | ||
1022 | /* setup packet is 'c0 b9 0000 0000 0001' */ | |
1023 | rr3->flash_control.bRequestType = 0xc0; | |
1024 | rr3->flash_control.bRequest = RR3_BLINK_LED; | |
1025 | rr3->flash_control.wLength = cpu_to_le16(1); | |
1026 | ||
1027 | usb_fill_control_urb(rr3->flash_urb, udev, usb_rcvctrlpipe(udev, 0), | |
1028 | (unsigned char *)&rr3->flash_control, | |
1029 | &rr3->flash_in_buf, sizeof(rr3->flash_in_buf), | |
1030 | redrat3_led_complete, rr3); | |
1031 | ||
2154be65 | 1032 | rr3->rc = redrat3_init_rc_dev(rr3); |
6ea7cf76 PST |
1033 | if (!rr3->rc) { |
1034 | retval = -ENOMEM; | |
bf139726 | 1035 | goto led_free_error; |
6ea7cf76 | 1036 | } |
2154be65 JW |
1037 | |
1038 | /* we can register the device now, as it is ready */ | |
1039 | usb_set_intfdata(intf, rr3); | |
1040 | ||
2154be65 JW |
1041 | return 0; |
1042 | ||
bf139726 SY |
1043 | led_free_error: |
1044 | led_classdev_unregister(&rr3->led); | |
2154be65 JW |
1045 | error: |
1046 | redrat3_delete(rr3, rr3->udev); | |
1047 | ||
1048 | no_endpoints: | |
1049 | dev_err(dev, "%s: retval = %x", __func__, retval); | |
1050 | ||
1051 | return retval; | |
1052 | } | |
1053 | ||
4c62e976 | 1054 | static void redrat3_dev_disconnect(struct usb_interface *intf) |
2154be65 JW |
1055 | { |
1056 | struct usb_device *udev = interface_to_usbdev(intf); | |
1057 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
1058 | ||
2154be65 JW |
1059 | if (!rr3) |
1060 | return; | |
1061 | ||
2154be65 JW |
1062 | usb_set_intfdata(intf, NULL); |
1063 | rc_unregister_device(rr3->rc); | |
bf139726 | 1064 | led_classdev_unregister(&rr3->led); |
2154be65 | 1065 | redrat3_delete(rr3, udev); |
2154be65 JW |
1066 | } |
1067 | ||
1068 | static int redrat3_dev_suspend(struct usb_interface *intf, pm_message_t message) | |
1069 | { | |
1070 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
a36d5b61 | 1071 | |
bf139726 | 1072 | led_classdev_suspend(&rr3->led); |
2154be65 | 1073 | usb_kill_urb(rr3->read_urb); |
bf139726 | 1074 | usb_kill_urb(rr3->flash_urb); |
2154be65 JW |
1075 | return 0; |
1076 | } | |
1077 | ||
1078 | static int redrat3_dev_resume(struct usb_interface *intf) | |
1079 | { | |
1080 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
a36d5b61 | 1081 | |
2154be65 JW |
1082 | if (usb_submit_urb(rr3->read_urb, GFP_ATOMIC)) |
1083 | return -EIO; | |
bf139726 | 1084 | led_classdev_resume(&rr3->led); |
2154be65 JW |
1085 | return 0; |
1086 | } | |
1087 | ||
1088 | static struct usb_driver redrat3_dev_driver = { | |
1089 | .name = DRIVER_NAME, | |
1090 | .probe = redrat3_dev_probe, | |
4c62e976 | 1091 | .disconnect = redrat3_dev_disconnect, |
2154be65 JW |
1092 | .suspend = redrat3_dev_suspend, |
1093 | .resume = redrat3_dev_resume, | |
1094 | .reset_resume = redrat3_dev_resume, | |
1095 | .id_table = redrat3_dev_table | |
1096 | }; | |
1097 | ||
ecb3b2b3 | 1098 | module_usb_driver(redrat3_dev_driver); |
2154be65 JW |
1099 | |
1100 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1101 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1102 | MODULE_AUTHOR(DRIVER_AUTHOR2); | |
1103 | MODULE_LICENSE("GPL"); | |
1104 | MODULE_DEVICE_TABLE(usb, redrat3_dev_table); |