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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 | * | |
2154be65 JW |
42 | */ |
43 | ||
4c055a5a | 44 | #include <asm/unaligned.h> |
2154be65 | 45 | #include <linux/device.h> |
bf139726 | 46 | #include <linux/leds.h> |
2154be65 JW |
47 | #include <linux/module.h> |
48 | #include <linux/slab.h> | |
49 | #include <linux/usb.h> | |
50 | #include <linux/usb/input.h> | |
51 | #include <media/rc-core.h> | |
52 | ||
53 | /* Driver Information */ | |
2154be65 JW |
54 | #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>" |
55 | #define DRIVER_AUTHOR2 "The Dweller, Stephen Cox" | |
56 | #define DRIVER_DESC "RedRat3 USB IR Transceiver Driver" | |
57 | #define DRIVER_NAME "redrat3" | |
58 | ||
2154be65 JW |
59 | /* bulk data transfer types */ |
60 | #define RR3_ERROR 0x01 | |
61 | #define RR3_MOD_SIGNAL_IN 0x20 | |
62 | #define RR3_MOD_SIGNAL_OUT 0x21 | |
63 | ||
64 | /* Get the RR firmware version */ | |
65 | #define RR3_FW_VERSION 0xb1 | |
66 | #define RR3_FW_VERSION_LEN 64 | |
67 | /* Send encoded signal bulk-sent earlier*/ | |
68 | #define RR3_TX_SEND_SIGNAL 0xb3 | |
69 | #define RR3_SET_IR_PARAM 0xb7 | |
70 | #define RR3_GET_IR_PARAM 0xb8 | |
71 | /* Blink the red LED on the device */ | |
72 | #define RR3_BLINK_LED 0xb9 | |
73 | /* Read serial number of device */ | |
74 | #define RR3_READ_SER_NO 0xba | |
75 | #define RR3_SER_NO_LEN 4 | |
76 | /* Start capture with the RC receiver */ | |
77 | #define RR3_RC_DET_ENABLE 0xbb | |
78 | /* Stop capture with the RC receiver */ | |
79 | #define RR3_RC_DET_DISABLE 0xbc | |
c49fcdde SY |
80 | /* Start capture with the wideband receiver */ |
81 | #define RR3_MODSIG_CAPTURE 0xb2 | |
2154be65 JW |
82 | /* Return the status of RC detector capture */ |
83 | #define RR3_RC_DET_STATUS 0xbd | |
84 | /* Reset redrat */ | |
85 | #define RR3_RESET 0xa0 | |
86 | ||
87 | /* Max number of lengths in the signal. */ | |
88 | #define RR3_IR_IO_MAX_LENGTHS 0x01 | |
89 | /* Periods to measure mod. freq. */ | |
90 | #define RR3_IR_IO_PERIODS_MF 0x02 | |
91 | /* Size of memory for main signal data */ | |
92 | #define RR3_IR_IO_SIG_MEM_SIZE 0x03 | |
93 | /* Delta value when measuring lengths */ | |
94 | #define RR3_IR_IO_LENGTH_FUZZ 0x04 | |
95 | /* Timeout for end of signal detection */ | |
96 | #define RR3_IR_IO_SIG_TIMEOUT 0x05 | |
39c1cb2b | 97 | /* Minimum value for pause recognition. */ |
2154be65 JW |
98 | #define RR3_IR_IO_MIN_PAUSE 0x06 |
99 | ||
100 | /* Clock freq. of EZ-USB chip */ | |
101 | #define RR3_CLK 24000000 | |
102 | /* Clock periods per timer count */ | |
103 | #define RR3_CLK_PER_COUNT 12 | |
104 | /* (RR3_CLK / RR3_CLK_PER_COUNT) */ | |
105 | #define RR3_CLK_CONV_FACTOR 2000000 | |
c49fcdde SY |
106 | /* USB bulk-in wideband IR data endpoint address */ |
107 | #define RR3_WIDE_IN_EP_ADDR 0x81 | |
108 | /* USB bulk-in narrowband IR data endpoint address */ | |
109 | #define RR3_NARROW_IN_EP_ADDR 0x82 | |
2154be65 | 110 | |
2154be65 | 111 | /* Size of the fixed-length portion of the signal */ |
a48c4bbd | 112 | #define RR3_DRIVER_MAXLENS 255 |
2154be65 | 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 | ||
d6ae162b SY |
127 | |
128 | /* | |
129 | * The redrat3 encodes an IR signal as set of different lengths and a set | |
130 | * of indices into those lengths. This sets how much two lengths must | |
131 | * differ before they are considered distinct, the value is specified | |
132 | * in microseconds. | |
133 | * Default 5, value 0 to 127. | |
134 | */ | |
135 | static int length_fuzz = 5; | |
136 | module_param(length_fuzz, uint, 0644); | |
137 | MODULE_PARM_DESC(length_fuzz, "Length Fuzz (0-127)"); | |
138 | ||
139 | /* | |
140 | * When receiving a continuous ir stream (for example when a user is | |
141 | * holding a button down on a remote), this specifies the minimum size | |
142 | * of a space when the redrat3 sends a irdata packet to the host. Specified | |
143 | * in miliseconds. Default value 18ms. | |
144 | * The value can be between 2 and 30 inclusive. | |
145 | */ | |
146 | static int minimum_pause = 18; | |
147 | module_param(minimum_pause, uint, 0644); | |
148 | MODULE_PARM_DESC(minimum_pause, "Minimum Pause in ms (2-30)"); | |
149 | ||
150 | /* | |
151 | * The carrier frequency is measured during the first pulse of the IR | |
152 | * signal. The larger the number of periods used To measure, the more | |
153 | * accurate the result is likely to be, however some signals have short | |
154 | * initial pulses, so in some case it may be necessary to reduce this value. | |
155 | * Default 8, value 1 to 255. | |
156 | */ | |
157 | static int periods_measure_carrier = 8; | |
158 | module_param(periods_measure_carrier, uint, 0644); | |
159 | MODULE_PARM_DESC(periods_measure_carrier, "Number of Periods to Measure Carrier (1-255)"); | |
160 | ||
161 | ||
4c055a5a SY |
162 | struct redrat3_header { |
163 | __be16 length; | |
164 | __be16 transfer_type; | |
165 | } __packed; | |
166 | ||
167 | /* sending and receiving irdata */ | |
168 | struct redrat3_irdata { | |
169 | struct redrat3_header header; | |
170 | __be32 pause; | |
171 | __be16 mod_freq_count; | |
172 | __be16 num_periods; | |
173 | __u8 max_lengths; | |
174 | __u8 no_lengths; | |
175 | __be16 max_sig_size; | |
176 | __be16 sig_size; | |
177 | __u8 no_repeats; | |
178 | __be16 lens[RR3_DRIVER_MAXLENS]; /* not aligned */ | |
179 | __u8 sigdata[RR3_MAX_SIG_SIZE]; | |
180 | } __packed; | |
181 | ||
182 | /* firmware errors */ | |
183 | struct redrat3_error { | |
184 | struct redrat3_header header; | |
185 | __be16 fw_error; | |
186 | } __packed; | |
187 | ||
2154be65 JW |
188 | /* table of devices that work with this driver */ |
189 | static struct usb_device_id redrat3_dev_table[] = { | |
190 | /* Original version of the RedRat3 */ | |
191 | {USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3USB_PRODUCT_ID)}, | |
192 | /* Second Version/release of the RedRat3 - RetRat3-II */ | |
193 | {USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3IIUSB_PRODUCT_ID)}, | |
194 | {} /* Terminating entry */ | |
195 | }; | |
196 | ||
197 | /* Structure to hold all of our device specific stuff */ | |
198 | struct redrat3_dev { | |
199 | /* core device bits */ | |
200 | struct rc_dev *rc; | |
201 | struct device *dev; | |
202 | ||
bf139726 SY |
203 | /* led control */ |
204 | struct led_classdev led; | |
205 | atomic_t flash; | |
206 | struct usb_ctrlrequest flash_control; | |
207 | struct urb *flash_urb; | |
208 | u8 flash_in_buf; | |
209 | ||
c49fcdde SY |
210 | /* learning */ |
211 | bool wideband; | |
212 | struct usb_ctrlrequest learn_control; | |
213 | struct urb *learn_urb; | |
214 | u8 learn_buf; | |
215 | ||
2154be65 JW |
216 | /* save off the usb device pointer */ |
217 | struct usb_device *udev; | |
218 | ||
219 | /* the receive endpoint */ | |
c49fcdde | 220 | struct usb_endpoint_descriptor *ep_narrow; |
2154be65 | 221 | /* the buffer to receive data */ |
4c055a5a | 222 | void *bulk_in_buf; |
2154be65 | 223 | /* urb used to read ir data */ |
c49fcdde SY |
224 | struct urb *narrow_urb; |
225 | struct urb *wide_urb; | |
2154be65 JW |
226 | |
227 | /* the send endpoint */ | |
228 | struct usb_endpoint_descriptor *ep_out; | |
2154be65 JW |
229 | |
230 | /* usb dma */ | |
231 | dma_addr_t dma_in; | |
2154be65 | 232 | |
2154be65 JW |
233 | /* Is the device currently transmitting?*/ |
234 | bool transmitting; | |
235 | ||
236 | /* store for current packet */ | |
4c055a5a | 237 | struct redrat3_irdata irdata; |
2154be65 | 238 | u16 bytes_read; |
2154be65 JW |
239 | |
240 | u32 carrier; | |
241 | ||
4c055a5a | 242 | char name[64]; |
2154be65 JW |
243 | char phys[64]; |
244 | }; | |
245 | ||
2154be65 JW |
246 | static void redrat3_dump_fw_error(struct redrat3_dev *rr3, int code) |
247 | { | |
248 | if (!rr3->transmitting && (code != 0x40)) | |
249 | dev_info(rr3->dev, "fw error code 0x%02x: ", code); | |
250 | ||
251 | switch (code) { | |
252 | case 0x00: | |
253 | pr_cont("No Error\n"); | |
254 | break; | |
255 | ||
256 | /* Codes 0x20 through 0x2f are IR Firmware Errors */ | |
257 | case 0x20: | |
25ec587c | 258 | pr_cont("Initial signal pulse not long enough to measure carrier frequency\n"); |
2154be65 JW |
259 | break; |
260 | case 0x21: | |
261 | pr_cont("Not enough length values allocated for signal\n"); | |
262 | break; | |
263 | case 0x22: | |
264 | pr_cont("Not enough memory allocated for signal data\n"); | |
265 | break; | |
266 | case 0x23: | |
267 | pr_cont("Too many signal repeats\n"); | |
268 | break; | |
269 | case 0x28: | |
25ec587c | 270 | pr_cont("Insufficient memory available for IR signal data memory allocation\n"); |
2154be65 JW |
271 | break; |
272 | case 0x29: | |
25ec587c | 273 | pr_cont("Insufficient memory available for IrDa signal data memory allocation\n"); |
2154be65 JW |
274 | break; |
275 | ||
276 | /* Codes 0x30 through 0x3f are USB Firmware Errors */ | |
277 | case 0x30: | |
25ec587c | 278 | pr_cont("Insufficient memory available for bulk transfer structure\n"); |
2154be65 JW |
279 | break; |
280 | ||
281 | /* | |
282 | * Other error codes... These are primarily errors that can occur in | |
283 | * the control messages sent to the redrat | |
284 | */ | |
285 | case 0x40: | |
286 | if (!rr3->transmitting) | |
287 | pr_cont("Signal capture has been terminated\n"); | |
288 | break; | |
289 | case 0x41: | |
25ec587c | 290 | pr_cont("Attempt to set/get and unknown signal I/O algorithm parameter\n"); |
2154be65 JW |
291 | break; |
292 | case 0x42: | |
293 | pr_cont("Signal capture already started\n"); | |
294 | break; | |
295 | ||
296 | default: | |
297 | pr_cont("Unknown Error\n"); | |
298 | break; | |
299 | } | |
300 | } | |
301 | ||
4c055a5a | 302 | static u32 redrat3_val_to_mod_freq(struct redrat3_irdata *irdata) |
2154be65 JW |
303 | { |
304 | u32 mod_freq = 0; | |
4c055a5a | 305 | u16 mod_freq_count = be16_to_cpu(irdata->mod_freq_count); |
2154be65 | 306 | |
4c055a5a SY |
307 | if (mod_freq_count != 0) |
308 | mod_freq = (RR3_CLK * be16_to_cpu(irdata->num_periods)) / | |
309 | (mod_freq_count * RR3_CLK_PER_COUNT); | |
2154be65 JW |
310 | |
311 | return mod_freq; | |
312 | } | |
313 | ||
314 | /* this function scales down the figures for the same result... */ | |
315 | static u32 redrat3_len_to_us(u32 length) | |
316 | { | |
317 | u32 biglen = length * 1000; | |
318 | u32 divisor = (RR3_CLK_CONV_FACTOR) / 1000; | |
319 | u32 result = (u32) (biglen / divisor); | |
320 | ||
321 | /* don't allow zero lengths to go back, breaks lirc */ | |
322 | return result ? result : 1; | |
323 | } | |
324 | ||
325 | /* | |
326 | * convert us back into redrat3 lengths | |
327 | * | |
328 | * length * 1000 length * 1000000 | |
329 | * ------------- = ---------------- = micro | |
330 | * rr3clk / 1000 rr3clk | |
331 | ||
332 | * 6 * 2 4 * 3 micro * rr3clk micro * rr3clk / 1000 | |
333 | * ----- = 4 ----- = 6 -------------- = len --------------------- | |
334 | * 3 2 1000000 1000 | |
335 | */ | |
336 | static u32 redrat3_us_to_len(u32 microsec) | |
337 | { | |
338 | u32 result; | |
339 | u32 divisor; | |
340 | ||
95cf60aa | 341 | microsec = (microsec > IR_MAX_DURATION) ? IR_MAX_DURATION : microsec; |
2154be65 JW |
342 | divisor = (RR3_CLK_CONV_FACTOR / 1000); |
343 | result = (u32)(microsec * divisor) / 1000; | |
344 | ||
345 | /* don't allow zero lengths to go back, breaks lirc */ | |
346 | return result ? result : 1; | |
2154be65 JW |
347 | } |
348 | ||
2154be65 JW |
349 | static void redrat3_process_ir_data(struct redrat3_dev *rr3) |
350 | { | |
351 | DEFINE_IR_RAW_EVENT(rawir); | |
2154be65 | 352 | struct device *dev; |
25da661a | 353 | unsigned int i, sig_size, single_len, offset, val; |
4c055a5a | 354 | u32 mod_freq; |
2154be65 | 355 | |
2154be65 | 356 | dev = rr3->dev; |
2154be65 | 357 | |
4c055a5a | 358 | mod_freq = redrat3_val_to_mod_freq(&rr3->irdata); |
3228bf81 | 359 | dev_dbg(dev, "Got mod_freq of %u\n", mod_freq); |
c49fcdde SY |
360 | if (mod_freq && rr3->wideband) { |
361 | DEFINE_IR_RAW_EVENT(ev); | |
362 | ||
363 | ev.carrier_report = 1; | |
364 | ev.carrier = mod_freq; | |
365 | ||
366 | ir_raw_event_store(rr3->rc, &ev); | |
367 | } | |
2154be65 | 368 | |
2154be65 | 369 | /* process each rr3 encoded byte into an int */ |
4c055a5a SY |
370 | sig_size = be16_to_cpu(rr3->irdata.sig_size); |
371 | for (i = 0; i < sig_size; i++) { | |
372 | offset = rr3->irdata.sigdata[i]; | |
373 | val = get_unaligned_be16(&rr3->irdata.lens[offset]); | |
374 | single_len = redrat3_len_to_us(val); | |
2154be65 | 375 | |
2154be65 JW |
376 | /* we should always get pulse/space/pulse/space samples */ |
377 | if (i % 2) | |
378 | rawir.pulse = false; | |
379 | else | |
380 | rawir.pulse = true; | |
381 | ||
382 | rawir.duration = US_TO_NS(single_len); | |
2c594ffa | 383 | /* cap the value to IR_MAX_DURATION */ |
95cf60aa MCC |
384 | rawir.duration = (rawir.duration > IR_MAX_DURATION) ? |
385 | IR_MAX_DURATION : rawir.duration; | |
2c594ffa | 386 | |
3228bf81 | 387 | dev_dbg(dev, "storing %s with duration %d (i: %d)\n", |
2154be65 JW |
388 | rawir.pulse ? "pulse" : "space", rawir.duration, i); |
389 | ir_raw_event_store_with_filter(rr3->rc, &rawir); | |
390 | } | |
391 | ||
25da661a SY |
392 | /* add a trailing space */ |
393 | rawir.pulse = false; | |
394 | rawir.timeout = true; | |
c7470ff2 | 395 | rawir.duration = rr3->rc->timeout; |
25da661a SY |
396 | dev_dbg(dev, "storing trailing timeout with duration %d\n", |
397 | rawir.duration); | |
398 | ir_raw_event_store_with_filter(rr3->rc, &rawir); | |
2154be65 | 399 | |
3228bf81 | 400 | dev_dbg(dev, "calling ir_raw_event_handle\n"); |
2154be65 | 401 | ir_raw_event_handle(rr3->rc); |
2154be65 JW |
402 | } |
403 | ||
404 | /* Util fn to send rr3 cmds */ | |
6948524d | 405 | static int redrat3_send_cmd(int cmd, struct redrat3_dev *rr3) |
2154be65 JW |
406 | { |
407 | struct usb_device *udev; | |
408 | u8 *data; | |
409 | int res; | |
410 | ||
411 | data = kzalloc(sizeof(u8), GFP_KERNEL); | |
412 | if (!data) | |
413 | return -ENOMEM; | |
414 | ||
415 | udev = rr3->udev; | |
416 | res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), cmd, | |
417 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
418 | 0x0000, 0x0000, data, sizeof(u8), HZ * 10); | |
419 | ||
420 | if (res < 0) { | |
421 | dev_err(rr3->dev, "%s: Error sending rr3 cmd res %d, data %d", | |
422 | __func__, res, *data); | |
423 | res = -EIO; | |
424 | } else | |
4c055a5a | 425 | res = data[0]; |
2154be65 JW |
426 | |
427 | kfree(data); | |
428 | ||
429 | return res; | |
430 | } | |
431 | ||
432 | /* Enables the long range detector and starts async receive */ | |
433 | static int redrat3_enable_detector(struct redrat3_dev *rr3) | |
434 | { | |
435 | struct device *dev = rr3->dev; | |
436 | u8 ret; | |
437 | ||
2154be65 JW |
438 | ret = redrat3_send_cmd(RR3_RC_DET_ENABLE, rr3); |
439 | if (ret != 0) | |
440 | dev_dbg(dev, "%s: unexpected ret of %d\n", | |
441 | __func__, ret); | |
442 | ||
443 | ret = redrat3_send_cmd(RR3_RC_DET_STATUS, rr3); | |
444 | if (ret != 1) { | |
445 | dev_err(dev, "%s: detector status: %d, should be 1\n", | |
446 | __func__, ret); | |
447 | return -EIO; | |
448 | } | |
449 | ||
c49fcdde SY |
450 | ret = usb_submit_urb(rr3->narrow_urb, GFP_KERNEL); |
451 | if (ret) { | |
452 | dev_err(rr3->dev, "narrow band urb failed: %d", ret); | |
453 | return ret; | |
454 | } | |
2154be65 | 455 | |
c49fcdde SY |
456 | ret = usb_submit_urb(rr3->wide_urb, GFP_KERNEL); |
457 | if (ret) | |
458 | dev_err(rr3->dev, "wide band urb failed: %d", ret); | |
459 | ||
460 | return ret; | |
2154be65 JW |
461 | } |
462 | ||
2154be65 JW |
463 | static inline void redrat3_delete(struct redrat3_dev *rr3, |
464 | struct usb_device *udev) | |
465 | { | |
c49fcdde SY |
466 | usb_kill_urb(rr3->narrow_urb); |
467 | usb_kill_urb(rr3->wide_urb); | |
bf139726 | 468 | usb_kill_urb(rr3->flash_urb); |
c49fcdde SY |
469 | usb_kill_urb(rr3->learn_urb); |
470 | usb_free_urb(rr3->narrow_urb); | |
471 | usb_free_urb(rr3->wide_urb); | |
bf139726 | 472 | usb_free_urb(rr3->flash_urb); |
c49fcdde SY |
473 | usb_free_urb(rr3->learn_urb); |
474 | usb_free_coherent(udev, le16_to_cpu(rr3->ep_narrow->wMaxPacketSize), | |
2154be65 | 475 | rr3->bulk_in_buf, rr3->dma_in); |
2154be65 JW |
476 | |
477 | kfree(rr3); | |
478 | } | |
479 | ||
c53f9f00 | 480 | static u32 redrat3_get_timeout(struct redrat3_dev *rr3) |
2154be65 | 481 | { |
801b69f2 | 482 | __be32 *tmp; |
c53f9f00 | 483 | u32 timeout = MS_TO_US(150); /* a sane default, if things go haywire */ |
2154be65 JW |
484 | int len, ret, pipe; |
485 | ||
486 | len = sizeof(*tmp); | |
487 | tmp = kzalloc(len, GFP_KERNEL); | |
559f64d4 | 488 | if (!tmp) |
2154be65 | 489 | return timeout; |
2154be65 | 490 | |
c53f9f00 JW |
491 | pipe = usb_rcvctrlpipe(rr3->udev, 0); |
492 | ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM, | |
2154be65 JW |
493 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
494 | RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5); | |
801b69f2 | 495 | if (ret != len) |
c53f9f00 | 496 | dev_warn(rr3->dev, "Failed to read timeout from hardware\n"); |
801b69f2 SY |
497 | else { |
498 | timeout = redrat3_len_to_us(be32_to_cpup(tmp)); | |
499 | ||
3228bf81 | 500 | dev_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000); |
2154be65 JW |
501 | } |
502 | ||
801b69f2 | 503 | kfree(tmp); |
2154be65 | 504 | |
2154be65 JW |
505 | return timeout; |
506 | } | |
507 | ||
4f253cec SY |
508 | static int redrat3_set_timeout(struct rc_dev *rc_dev, unsigned int timeoutns) |
509 | { | |
510 | struct redrat3_dev *rr3 = rc_dev->priv; | |
511 | struct usb_device *udev = rr3->udev; | |
512 | struct device *dev = rr3->dev; | |
b1cb50be | 513 | __be32 *timeout; |
4f253cec SY |
514 | int ret; |
515 | ||
516 | timeout = kmalloc(sizeof(*timeout), GFP_KERNEL); | |
517 | if (!timeout) | |
518 | return -ENOMEM; | |
519 | ||
520 | *timeout = cpu_to_be32(redrat3_us_to_len(timeoutns / 1000)); | |
521 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RR3_SET_IR_PARAM, | |
522 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
523 | RR3_IR_IO_SIG_TIMEOUT, 0, timeout, sizeof(*timeout), | |
524 | HZ * 25); | |
525 | dev_dbg(dev, "set ir parm timeout %d ret 0x%02x\n", | |
526 | be32_to_cpu(*timeout), ret); | |
527 | ||
c7470ff2 | 528 | if (ret == sizeof(*timeout)) |
4f253cec | 529 | ret = 0; |
c7470ff2 | 530 | else if (ret >= 0) |
4f253cec SY |
531 | ret = -EIO; |
532 | ||
533 | kfree(timeout); | |
534 | ||
535 | return ret; | |
536 | } | |
537 | ||
2154be65 JW |
538 | static void redrat3_reset(struct redrat3_dev *rr3) |
539 | { | |
540 | struct usb_device *udev = rr3->udev; | |
541 | struct device *dev = rr3->dev; | |
542 | int rc, rxpipe, txpipe; | |
543 | u8 *val; | |
576df632 | 544 | size_t const len = sizeof(*val); |
2154be65 | 545 | |
2154be65 JW |
546 | rxpipe = usb_rcvctrlpipe(udev, 0); |
547 | txpipe = usb_sndctrlpipe(udev, 0); | |
548 | ||
fa7b9ac2 | 549 | val = kmalloc(len, GFP_KERNEL); |
559f64d4 | 550 | if (!val) |
2154be65 | 551 | return; |
2154be65 JW |
552 | |
553 | *val = 0x01; | |
554 | rc = usb_control_msg(udev, rxpipe, RR3_RESET, | |
555 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
556 | RR3_CPUCS_REG_ADDR, 0, val, len, HZ * 25); | |
3228bf81 | 557 | dev_dbg(dev, "reset returned 0x%02x\n", rc); |
2154be65 | 558 | |
d6ae162b | 559 | *val = length_fuzz; |
2154be65 JW |
560 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, |
561 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
562 | RR3_IR_IO_LENGTH_FUZZ, 0, val, len, HZ * 25); | |
3228bf81 | 563 | dev_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc); |
2154be65 | 564 | |
d6ae162b SY |
565 | *val = (65536 - (minimum_pause * 2000)) / 256; |
566 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, | |
567 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
568 | RR3_IR_IO_MIN_PAUSE, 0, val, len, HZ * 25); | |
569 | dev_dbg(dev, "set ir parm min pause %d rc 0x%02x\n", *val, rc); | |
570 | ||
571 | *val = periods_measure_carrier; | |
572 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, | |
573 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
574 | RR3_IR_IO_PERIODS_MF, 0, val, len, HZ * 25); | |
575 | dev_dbg(dev, "set ir parm periods measure carrier %d rc 0x%02x", *val, | |
576 | rc); | |
577 | ||
2154be65 JW |
578 | *val = RR3_DRIVER_MAXLENS; |
579 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, | |
580 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
581 | RR3_IR_IO_MAX_LENGTHS, 0, val, len, HZ * 25); | |
3228bf81 | 582 | dev_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc); |
2154be65 JW |
583 | |
584 | kfree(val); | |
585 | } | |
586 | ||
587 | static void redrat3_get_firmware_rev(struct redrat3_dev *rr3) | |
588 | { | |
7aa20afe | 589 | int rc; |
2154be65 JW |
590 | char *buffer; |
591 | ||
0bebaa5f | 592 | buffer = kcalloc(RR3_FW_VERSION_LEN + 1, sizeof(*buffer), GFP_KERNEL); |
559f64d4 | 593 | if (!buffer) |
2154be65 | 594 | return; |
2154be65 JW |
595 | |
596 | rc = usb_control_msg(rr3->udev, usb_rcvctrlpipe(rr3->udev, 0), | |
597 | RR3_FW_VERSION, | |
598 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
599 | 0, 0, buffer, RR3_FW_VERSION_LEN, HZ * 5); | |
600 | ||
601 | if (rc >= 0) | |
602 | dev_info(rr3->dev, "Firmware rev: %s", buffer); | |
603 | else | |
604 | dev_err(rr3->dev, "Problem fetching firmware ID\n"); | |
605 | ||
606 | kfree(buffer); | |
2154be65 JW |
607 | } |
608 | ||
fa7b9ac2 | 609 | static void redrat3_read_packet_start(struct redrat3_dev *rr3, unsigned len) |
2154be65 | 610 | { |
4c055a5a SY |
611 | struct redrat3_header *header = rr3->bulk_in_buf; |
612 | unsigned pktlen, pkttype; | |
2154be65 | 613 | |
2154be65 | 614 | /* grab the Length and type of transfer */ |
4c055a5a SY |
615 | pktlen = be16_to_cpu(header->length); |
616 | pkttype = be16_to_cpu(header->transfer_type); | |
2154be65 | 617 | |
4c055a5a SY |
618 | if (pktlen > sizeof(rr3->irdata)) { |
619 | dev_warn(rr3->dev, "packet length %u too large\n", pktlen); | |
620 | return; | |
621 | } | |
2154be65 | 622 | |
4c055a5a | 623 | switch (pkttype) { |
2154be65 | 624 | case RR3_ERROR: |
4c055a5a SY |
625 | if (len >= sizeof(struct redrat3_error)) { |
626 | struct redrat3_error *error = rr3->bulk_in_buf; | |
627 | unsigned fw_error = be16_to_cpu(error->fw_error); | |
628 | redrat3_dump_fw_error(rr3, fw_error); | |
629 | } | |
2154be65 JW |
630 | break; |
631 | ||
632 | case RR3_MOD_SIGNAL_IN: | |
4c055a5a | 633 | memcpy(&rr3->irdata, rr3->bulk_in_buf, len); |
2154be65 | 634 | rr3->bytes_read = len; |
3228bf81 | 635 | dev_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", |
4c055a5a | 636 | rr3->bytes_read, pktlen); |
2154be65 JW |
637 | break; |
638 | ||
639 | default: | |
3228bf81 | 640 | dev_dbg(rr3->dev, "ignoring packet with type 0x%02x, len of %d, 0x%02x\n", |
4c055a5a | 641 | pkttype, len, pktlen); |
2154be65 JW |
642 | break; |
643 | } | |
644 | } | |
645 | ||
fa7b9ac2 | 646 | static void redrat3_read_packet_continue(struct redrat3_dev *rr3, unsigned len) |
2154be65 | 647 | { |
4c055a5a SY |
648 | void *irdata = &rr3->irdata; |
649 | ||
4c055a5a SY |
650 | if (len + rr3->bytes_read > sizeof(rr3->irdata)) { |
651 | dev_warn(rr3->dev, "too much data for packet\n"); | |
652 | rr3->bytes_read = 0; | |
653 | return; | |
654 | } | |
655 | ||
656 | memcpy(irdata + rr3->bytes_read, rr3->bulk_in_buf, len); | |
2154be65 JW |
657 | |
658 | rr3->bytes_read += len; | |
3228bf81 | 659 | dev_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", rr3->bytes_read, |
4c055a5a | 660 | be16_to_cpu(rr3->irdata.header.length)); |
2154be65 JW |
661 | } |
662 | ||
663 | /* gather IR data from incoming urb, process it when we have enough */ | |
fa7b9ac2 | 664 | static int redrat3_get_ir_data(struct redrat3_dev *rr3, unsigned len) |
2154be65 JW |
665 | { |
666 | struct device *dev = rr3->dev; | |
4c055a5a | 667 | unsigned pkttype; |
2154be65 JW |
668 | int ret = 0; |
669 | ||
4c055a5a | 670 | if (rr3->bytes_read == 0 && len >= sizeof(struct redrat3_header)) { |
2154be65 JW |
671 | redrat3_read_packet_start(rr3, len); |
672 | } else if (rr3->bytes_read != 0) { | |
673 | redrat3_read_packet_continue(rr3, len); | |
674 | } else if (rr3->bytes_read == 0) { | |
675 | dev_err(dev, "error: no packet data read\n"); | |
676 | ret = -ENODATA; | |
677 | goto out; | |
678 | } | |
679 | ||
38e35a85 SY |
680 | if (rr3->bytes_read < be16_to_cpu(rr3->irdata.header.length) + |
681 | sizeof(struct redrat3_header)) | |
2154be65 JW |
682 | /* we're still accumulating data */ |
683 | return 0; | |
684 | ||
685 | /* if we get here, we've got IR data to decode */ | |
4c055a5a SY |
686 | pkttype = be16_to_cpu(rr3->irdata.header.transfer_type); |
687 | if (pkttype == RR3_MOD_SIGNAL_IN) | |
2154be65 JW |
688 | redrat3_process_ir_data(rr3); |
689 | else | |
3228bf81 | 690 | dev_dbg(dev, "discarding non-signal data packet (type 0x%02x)\n", |
4c055a5a | 691 | pkttype); |
2154be65 JW |
692 | |
693 | out: | |
694 | rr3->bytes_read = 0; | |
2154be65 JW |
695 | return ret; |
696 | } | |
697 | ||
698 | /* callback function from USB when async USB request has completed */ | |
801b69f2 | 699 | static void redrat3_handle_async(struct urb *urb) |
2154be65 | 700 | { |
d6aca6ea | 701 | struct redrat3_dev *rr3 = urb->context; |
dbea1880 | 702 | int ret; |
2154be65 | 703 | |
2154be65 JW |
704 | switch (urb->status) { |
705 | case 0: | |
dbea1880 | 706 | ret = redrat3_get_ir_data(rr3, urb->actual_length); |
c49fcdde SY |
707 | if (!ret && rr3->wideband && !rr3->learn_urb->hcpriv) { |
708 | ret = usb_submit_urb(rr3->learn_urb, GFP_ATOMIC); | |
709 | if (ret) | |
710 | dev_err(rr3->dev, "Failed to submit learning urb: %d", | |
711 | ret); | |
712 | } | |
713 | ||
dbea1880 AV |
714 | if (!ret) { |
715 | /* no error, prepare to read more */ | |
c49fcdde SY |
716 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
717 | if (ret) | |
718 | dev_err(rr3->dev, "Failed to resubmit urb: %d", | |
719 | ret); | |
dbea1880 | 720 | } |
2154be65 JW |
721 | break; |
722 | ||
723 | case -ECONNRESET: | |
724 | case -ENOENT: | |
725 | case -ESHUTDOWN: | |
726 | usb_unlink_urb(urb); | |
727 | return; | |
728 | ||
729 | case -EPIPE: | |
730 | default: | |
731 | dev_warn(rr3->dev, "Error: urb status = %d\n", urb->status); | |
732 | rr3->bytes_read = 0; | |
2154be65 JW |
733 | break; |
734 | } | |
2154be65 JW |
735 | } |
736 | ||
2154be65 JW |
737 | static u16 mod_freq_to_val(unsigned int mod_freq) |
738 | { | |
739 | int mult = 6000000; | |
740 | ||
741 | /* Clk used in mod. freq. generation is CLK24/4. */ | |
4c055a5a | 742 | return 65536 - (mult / mod_freq); |
2154be65 JW |
743 | } |
744 | ||
dbea1880 | 745 | static int redrat3_set_tx_carrier(struct rc_dev *rcdev, u32 carrier) |
2154be65 | 746 | { |
dbea1880 AV |
747 | struct redrat3_dev *rr3 = rcdev->priv; |
748 | struct device *dev = rr3->dev; | |
2154be65 | 749 | |
3228bf81 | 750 | dev_dbg(dev, "Setting modulation frequency to %u", carrier); |
48cafec9 DC |
751 | if (carrier == 0) |
752 | return -EINVAL; | |
753 | ||
2154be65 JW |
754 | rr3->carrier = carrier; |
755 | ||
14d8188a | 756 | return 0; |
2154be65 JW |
757 | } |
758 | ||
dbea1880 AV |
759 | static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf, |
760 | unsigned count) | |
2154be65 JW |
761 | { |
762 | struct redrat3_dev *rr3 = rcdev->priv; | |
763 | struct device *dev = rr3->dev; | |
4c055a5a | 764 | struct redrat3_irdata *irdata = NULL; |
fa7b9ac2 | 765 | int ret, ret_len; |
2154be65 | 766 | int lencheck, cur_sample_len, pipe; |
2154be65 | 767 | int *sample_lens = NULL; |
2154be65 | 768 | u8 curlencheck = 0; |
fa7b9ac2 | 769 | unsigned i, sendbuf_len; |
2154be65 | 770 | |
2154be65 JW |
771 | if (rr3->transmitting) { |
772 | dev_warn(dev, "%s: transmitter already in use\n", __func__); | |
773 | return -EAGAIN; | |
774 | } | |
775 | ||
671ea670 SY |
776 | if (count > RR3_MAX_SIG_SIZE - RR3_TX_TRAILER_LEN) |
777 | return -EINVAL; | |
2154be65 | 778 | |
dbea1880 | 779 | /* rr3 will disable rc detector on transmit */ |
2154be65 JW |
780 | rr3->transmitting = true; |
781 | ||
0bebaa5f ME |
782 | sample_lens = kcalloc(RR3_DRIVER_MAXLENS, |
783 | sizeof(*sample_lens), | |
784 | GFP_KERNEL); | |
fac59136 ME |
785 | if (!sample_lens) |
786 | return -ENOMEM; | |
2154be65 | 787 | |
4c055a5a SY |
788 | irdata = kzalloc(sizeof(*irdata), GFP_KERNEL); |
789 | if (!irdata) { | |
801b69f2 SY |
790 | ret = -ENOMEM; |
791 | goto out; | |
792 | } | |
793 | ||
2154be65 | 794 | for (i = 0; i < count; i++) { |
06eae25f | 795 | cur_sample_len = redrat3_us_to_len(txbuf[i]); |
801b69f2 SY |
796 | if (cur_sample_len > 0xffff) { |
797 | dev_warn(dev, "transmit period of %uus truncated to %uus\n", | |
798 | txbuf[i], redrat3_len_to_us(0xffff)); | |
799 | cur_sample_len = 0xffff; | |
800 | } | |
2154be65 | 801 | for (lencheck = 0; lencheck < curlencheck; lencheck++) { |
2154be65 JW |
802 | if (sample_lens[lencheck] == cur_sample_len) |
803 | break; | |
804 | } | |
805 | if (lencheck == curlencheck) { | |
3228bf81 | 806 | dev_dbg(dev, "txbuf[%d]=%u, pos %d, enc %u\n", |
2154be65 | 807 | i, txbuf[i], curlencheck, cur_sample_len); |
06eae25f | 808 | if (curlencheck < RR3_DRIVER_MAXLENS) { |
2154be65 JW |
809 | /* now convert the value to a proper |
810 | * rr3 value.. */ | |
811 | sample_lens[curlencheck] = cur_sample_len; | |
4c055a5a SY |
812 | put_unaligned_be16(cur_sample_len, |
813 | &irdata->lens[curlencheck]); | |
2154be65 JW |
814 | curlencheck++; |
815 | } else { | |
671ea670 SY |
816 | ret = -EINVAL; |
817 | goto out; | |
2154be65 JW |
818 | } |
819 | } | |
4c055a5a | 820 | irdata->sigdata[i] = lencheck; |
2154be65 JW |
821 | } |
822 | ||
4c055a5a SY |
823 | irdata->sigdata[count] = RR3_END_OF_SIGNAL; |
824 | irdata->sigdata[count + 1] = RR3_END_OF_SIGNAL; | |
2154be65 | 825 | |
4c055a5a SY |
826 | sendbuf_len = offsetof(struct redrat3_irdata, |
827 | sigdata[count + RR3_TX_TRAILER_LEN]); | |
2154be65 | 828 | /* fill in our packet header */ |
4c055a5a SY |
829 | irdata->header.length = cpu_to_be16(sendbuf_len - |
830 | sizeof(struct redrat3_header)); | |
831 | irdata->header.transfer_type = cpu_to_be16(RR3_MOD_SIGNAL_OUT); | |
832 | irdata->pause = cpu_to_be32(redrat3_len_to_us(100)); | |
833 | irdata->mod_freq_count = cpu_to_be16(mod_freq_to_val(rr3->carrier)); | |
834 | irdata->no_lengths = curlencheck; | |
835 | irdata->sig_size = cpu_to_be16(count + RR3_TX_TRAILER_LEN); | |
2154be65 JW |
836 | |
837 | pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress); | |
4c055a5a | 838 | ret = usb_bulk_msg(rr3->udev, pipe, irdata, |
2154be65 | 839 | sendbuf_len, &ret_len, 10 * HZ); |
3228bf81 | 840 | dev_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret); |
2154be65 JW |
841 | |
842 | /* now tell the hardware to transmit what we sent it */ | |
843 | pipe = usb_rcvctrlpipe(rr3->udev, 0); | |
844 | ret = usb_control_msg(rr3->udev, pipe, RR3_TX_SEND_SIGNAL, | |
845 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
4c055a5a | 846 | 0, 0, irdata, 2, HZ * 10); |
2154be65 JW |
847 | |
848 | if (ret < 0) | |
849 | dev_err(dev, "Error: control msg send failed, rc %d\n", ret); | |
850 | else | |
dbea1880 | 851 | ret = count; |
2154be65 JW |
852 | |
853 | out: | |
4c055a5a | 854 | kfree(irdata); |
fac59136 | 855 | kfree(sample_lens); |
2154be65 JW |
856 | |
857 | rr3->transmitting = false; | |
dbea1880 | 858 | /* rr3 re-enables rc detector because it was enabled before */ |
2154be65 JW |
859 | |
860 | return ret; | |
861 | } | |
862 | ||
bf139726 SY |
863 | static void redrat3_brightness_set(struct led_classdev *led_dev, enum |
864 | led_brightness brightness) | |
865 | { | |
866 | struct redrat3_dev *rr3 = container_of(led_dev, struct redrat3_dev, | |
867 | led); | |
868 | ||
869 | if (brightness != LED_OFF && atomic_cmpxchg(&rr3->flash, 0, 1) == 0) { | |
870 | int ret = usb_submit_urb(rr3->flash_urb, GFP_ATOMIC); | |
871 | if (ret != 0) { | |
872 | dev_dbg(rr3->dev, "%s: unexpected ret of %d\n", | |
873 | __func__, ret); | |
874 | atomic_set(&rr3->flash, 0); | |
875 | } | |
876 | } | |
877 | } | |
878 | ||
c49fcdde SY |
879 | static int redrat3_wideband_receiver(struct rc_dev *rcdev, int enable) |
880 | { | |
881 | struct redrat3_dev *rr3 = rcdev->priv; | |
882 | int ret = 0; | |
883 | ||
884 | rr3->wideband = enable != 0; | |
885 | ||
886 | if (enable) { | |
887 | ret = usb_submit_urb(rr3->learn_urb, GFP_KERNEL); | |
888 | if (ret) | |
889 | dev_err(rr3->dev, "Failed to submit learning urb: %d", | |
890 | ret); | |
891 | } | |
892 | ||
893 | return ret; | |
894 | } | |
895 | ||
896 | static void redrat3_learn_complete(struct urb *urb) | |
897 | { | |
898 | struct redrat3_dev *rr3 = urb->context; | |
899 | ||
900 | switch (urb->status) { | |
901 | case 0: | |
902 | break; | |
903 | case -ECONNRESET: | |
904 | case -ENOENT: | |
905 | case -ESHUTDOWN: | |
906 | usb_unlink_urb(urb); | |
907 | return; | |
908 | case -EPIPE: | |
909 | default: | |
910 | dev_err(rr3->dev, "Error: learn urb status = %d", urb->status); | |
911 | break; | |
912 | } | |
913 | } | |
914 | ||
bf139726 SY |
915 | static void redrat3_led_complete(struct urb *urb) |
916 | { | |
917 | struct redrat3_dev *rr3 = urb->context; | |
918 | ||
919 | switch (urb->status) { | |
920 | case 0: | |
921 | break; | |
922 | case -ECONNRESET: | |
923 | case -ENOENT: | |
924 | case -ESHUTDOWN: | |
925 | usb_unlink_urb(urb); | |
926 | return; | |
927 | case -EPIPE: | |
928 | default: | |
929 | dev_dbg(rr3->dev, "Error: urb status = %d\n", urb->status); | |
930 | break; | |
931 | } | |
932 | ||
933 | rr3->led.brightness = LED_OFF; | |
934 | atomic_dec(&rr3->flash); | |
935 | } | |
936 | ||
2154be65 JW |
937 | static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3) |
938 | { | |
939 | struct device *dev = rr3->dev; | |
940 | struct rc_dev *rc; | |
9d45d5fb | 941 | int ret; |
2154be65 JW |
942 | u16 prod = le16_to_cpu(rr3->udev->descriptor.idProduct); |
943 | ||
0f7499fd | 944 | rc = rc_allocate_device(RC_DRIVER_IR_RAW); |
559f64d4 | 945 | if (!rc) |
3f81678d | 946 | return NULL; |
2154be65 | 947 | |
da500033 SY |
948 | snprintf(rr3->name, sizeof(rr3->name), |
949 | "RedRat3%s Infrared Remote Transceiver", | |
950 | prod == USB_RR3IIUSB_PRODUCT_ID ? "-II" : ""); | |
2154be65 JW |
951 | |
952 | usb_make_path(rr3->udev, rr3->phys, sizeof(rr3->phys)); | |
953 | ||
518f4b26 | 954 | rc->device_name = rr3->name; |
2154be65 JW |
955 | rc->input_phys = rr3->phys; |
956 | usb_to_input_id(rr3->udev, &rc->input_id); | |
957 | rc->dev.parent = dev; | |
958 | rc->priv = rr3; | |
6d741bfe | 959 | rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; |
4f253cec SY |
960 | rc->min_timeout = MS_TO_NS(RR3_RX_MIN_TIMEOUT); |
961 | rc->max_timeout = MS_TO_NS(RR3_RX_MAX_TIMEOUT); | |
c7470ff2 | 962 | rc->timeout = US_TO_NS(redrat3_get_timeout(rr3)); |
4f253cec | 963 | rc->s_timeout = redrat3_set_timeout; |
2154be65 JW |
964 | rc->tx_ir = redrat3_transmit_ir; |
965 | rc->s_tx_carrier = redrat3_set_tx_carrier; | |
c49fcdde | 966 | rc->s_carrier_report = redrat3_wideband_receiver; |
2154be65 | 967 | rc->driver_name = DRIVER_NAME; |
06eae25f | 968 | rc->rx_resolution = US_TO_NS(2); |
2154be65 JW |
969 | rc->map_name = RC_MAP_HAUPPAUGE; |
970 | ||
971 | ret = rc_register_device(rc); | |
972 | if (ret < 0) { | |
973 | dev_err(dev, "remote dev registration failed\n"); | |
974 | goto out; | |
975 | } | |
976 | ||
977 | return rc; | |
978 | ||
979 | out: | |
980 | rc_free_device(rc); | |
981 | return NULL; | |
982 | } | |
983 | ||
4c62e976 GKH |
984 | static int redrat3_dev_probe(struct usb_interface *intf, |
985 | const struct usb_device_id *id) | |
2154be65 JW |
986 | { |
987 | struct usb_device *udev = interface_to_usbdev(intf); | |
988 | struct device *dev = &intf->dev; | |
989 | struct usb_host_interface *uhi; | |
990 | struct redrat3_dev *rr3; | |
991 | struct usb_endpoint_descriptor *ep; | |
c49fcdde SY |
992 | struct usb_endpoint_descriptor *ep_narrow = NULL; |
993 | struct usb_endpoint_descriptor *ep_wide = NULL; | |
2154be65 JW |
994 | struct usb_endpoint_descriptor *ep_out = NULL; |
995 | u8 addr, attrs; | |
996 | int pipe, i; | |
997 | int retval = -ENOMEM; | |
998 | ||
2154be65 JW |
999 | uhi = intf->cur_altsetting; |
1000 | ||
1001 | /* find our bulk-in and bulk-out endpoints */ | |
1002 | for (i = 0; i < uhi->desc.bNumEndpoints; ++i) { | |
1003 | ep = &uhi->endpoint[i].desc; | |
1004 | addr = ep->bEndpointAddress; | |
1005 | attrs = ep->bmAttributes; | |
1006 | ||
c49fcdde | 1007 | if (((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && |
2154be65 JW |
1008 | ((attrs & USB_ENDPOINT_XFERTYPE_MASK) == |
1009 | USB_ENDPOINT_XFER_BULK)) { | |
3228bf81 | 1010 | dev_dbg(dev, "found bulk-in endpoint at 0x%02x\n", |
2154be65 | 1011 | ep->bEndpointAddress); |
c49fcdde SY |
1012 | /* data comes in on 0x82, 0x81 is for learning */ |
1013 | if (ep->bEndpointAddress == RR3_NARROW_IN_EP_ADDR) | |
1014 | ep_narrow = ep; | |
1015 | if (ep->bEndpointAddress == RR3_WIDE_IN_EP_ADDR) | |
1016 | ep_wide = ep; | |
2154be65 JW |
1017 | } |
1018 | ||
1019 | if ((ep_out == NULL) && | |
1020 | ((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) && | |
1021 | ((attrs & USB_ENDPOINT_XFERTYPE_MASK) == | |
1022 | USB_ENDPOINT_XFER_BULK)) { | |
3228bf81 | 1023 | dev_dbg(dev, "found bulk-out endpoint at 0x%02x\n", |
2154be65 JW |
1024 | ep->bEndpointAddress); |
1025 | ep_out = ep; | |
1026 | } | |
1027 | } | |
1028 | ||
c49fcdde SY |
1029 | if (!ep_narrow || !ep_out || !ep_wide) { |
1030 | dev_err(dev, "Couldn't find all endpoints\n"); | |
2154be65 JW |
1031 | retval = -ENODEV; |
1032 | goto no_endpoints; | |
1033 | } | |
1034 | ||
1035 | /* allocate memory for our device state and initialize it */ | |
1036 | rr3 = kzalloc(sizeof(*rr3), GFP_KERNEL); | |
559f64d4 | 1037 | if (!rr3) |
7eb75715 | 1038 | goto no_endpoints; |
2154be65 JW |
1039 | |
1040 | rr3->dev = &intf->dev; | |
c49fcdde | 1041 | rr3->ep_narrow = ep_narrow; |
8a21ec9b SY |
1042 | rr3->ep_out = ep_out; |
1043 | rr3->udev = udev; | |
2154be65 JW |
1044 | |
1045 | /* set up bulk-in endpoint */ | |
c49fcdde SY |
1046 | rr3->narrow_urb = usb_alloc_urb(0, GFP_KERNEL); |
1047 | if (!rr3->narrow_urb) | |
1048 | goto redrat_free; | |
1049 | ||
1050 | rr3->wide_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1051 | if (!rr3->wide_urb) | |
8a21ec9b | 1052 | goto redrat_free; |
2154be65 | 1053 | |
fa7b9ac2 | 1054 | rr3->bulk_in_buf = usb_alloc_coherent(udev, |
c49fcdde SY |
1055 | le16_to_cpu(ep_narrow->wMaxPacketSize), |
1056 | GFP_KERNEL, &rr3->dma_in); | |
559f64d4 | 1057 | if (!rr3->bulk_in_buf) |
8a21ec9b | 1058 | goto redrat_free; |
2154be65 | 1059 | |
c49fcdde SY |
1060 | pipe = usb_rcvbulkpipe(udev, ep_narrow->bEndpointAddress); |
1061 | usb_fill_bulk_urb(rr3->narrow_urb, udev, pipe, rr3->bulk_in_buf, | |
1062 | le16_to_cpu(ep_narrow->wMaxPacketSize), | |
1063 | redrat3_handle_async, rr3); | |
1064 | rr3->narrow_urb->transfer_dma = rr3->dma_in; | |
1065 | rr3->narrow_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1066 | ||
1067 | pipe = usb_rcvbulkpipe(udev, ep_wide->bEndpointAddress); | |
1068 | usb_fill_bulk_urb(rr3->wide_urb, udev, pipe, rr3->bulk_in_buf, | |
1069 | le16_to_cpu(ep_narrow->wMaxPacketSize), | |
1070 | redrat3_handle_async, rr3); | |
1071 | rr3->wide_urb->transfer_dma = rr3->dma_in; | |
1072 | rr3->wide_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
2154be65 | 1073 | |
2154be65 JW |
1074 | redrat3_reset(rr3); |
1075 | redrat3_get_firmware_rev(rr3); | |
1076 | ||
2154be65 JW |
1077 | /* default.. will get overridden by any sends with a freq defined */ |
1078 | rr3->carrier = 38000; | |
1079 | ||
bf139726 SY |
1080 | atomic_set(&rr3->flash, 0); |
1081 | rr3->flash_urb = usb_alloc_urb(0, GFP_KERNEL); | |
8a21ec9b SY |
1082 | if (!rr3->flash_urb) |
1083 | goto redrat_free; | |
bf139726 | 1084 | |
c49fcdde SY |
1085 | /* learn urb */ |
1086 | rr3->learn_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1087 | if (!rr3->learn_urb) | |
1088 | goto redrat_free; | |
1089 | ||
1090 | /* setup packet is 'c0 b2 0000 0000 0001' */ | |
1091 | rr3->learn_control.bRequestType = 0xc0; | |
1092 | rr3->learn_control.bRequest = RR3_MODSIG_CAPTURE; | |
1093 | rr3->learn_control.wLength = cpu_to_le16(1); | |
1094 | ||
1095 | usb_fill_control_urb(rr3->learn_urb, udev, usb_rcvctrlpipe(udev, 0), | |
1096 | (unsigned char *)&rr3->learn_control, | |
1097 | &rr3->learn_buf, sizeof(rr3->learn_buf), | |
1098 | redrat3_learn_complete, rr3); | |
1099 | ||
bf139726 SY |
1100 | /* setup packet is 'c0 b9 0000 0000 0001' */ |
1101 | rr3->flash_control.bRequestType = 0xc0; | |
1102 | rr3->flash_control.bRequest = RR3_BLINK_LED; | |
1103 | rr3->flash_control.wLength = cpu_to_le16(1); | |
1104 | ||
1105 | usb_fill_control_urb(rr3->flash_urb, udev, usb_rcvctrlpipe(udev, 0), | |
1106 | (unsigned char *)&rr3->flash_control, | |
1107 | &rr3->flash_in_buf, sizeof(rr3->flash_in_buf), | |
1108 | redrat3_led_complete, rr3); | |
1109 | ||
8a21ec9b SY |
1110 | /* led control */ |
1111 | rr3->led.name = "redrat3:red:feedback"; | |
1112 | rr3->led.default_trigger = "rc-feedback"; | |
1113 | rr3->led.brightness_set = redrat3_brightness_set; | |
1114 | retval = led_classdev_register(&intf->dev, &rr3->led); | |
1115 | if (retval) | |
1116 | goto redrat_free; | |
1117 | ||
2154be65 | 1118 | rr3->rc = redrat3_init_rc_dev(rr3); |
6ea7cf76 PST |
1119 | if (!rr3->rc) { |
1120 | retval = -ENOMEM; | |
8a21ec9b | 1121 | goto led_free; |
6ea7cf76 | 1122 | } |
2154be65 | 1123 | |
8a21ec9b SY |
1124 | /* might be all we need to do? */ |
1125 | retval = redrat3_enable_detector(rr3); | |
1126 | if (retval < 0) | |
1127 | goto led_free; | |
1128 | ||
2154be65 JW |
1129 | /* we can register the device now, as it is ready */ |
1130 | usb_set_intfdata(intf, rr3); | |
1131 | ||
2154be65 JW |
1132 | return 0; |
1133 | ||
8a21ec9b | 1134 | led_free: |
bf139726 | 1135 | led_classdev_unregister(&rr3->led); |
8a21ec9b | 1136 | redrat_free: |
2154be65 JW |
1137 | redrat3_delete(rr3, rr3->udev); |
1138 | ||
1139 | no_endpoints: | |
2154be65 JW |
1140 | return retval; |
1141 | } | |
1142 | ||
4c62e976 | 1143 | static void redrat3_dev_disconnect(struct usb_interface *intf) |
2154be65 JW |
1144 | { |
1145 | struct usb_device *udev = interface_to_usbdev(intf); | |
1146 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
1147 | ||
2154be65 JW |
1148 | usb_set_intfdata(intf, NULL); |
1149 | rc_unregister_device(rr3->rc); | |
bf139726 | 1150 | led_classdev_unregister(&rr3->led); |
2154be65 | 1151 | redrat3_delete(rr3, udev); |
2154be65 JW |
1152 | } |
1153 | ||
1154 | static int redrat3_dev_suspend(struct usb_interface *intf, pm_message_t message) | |
1155 | { | |
1156 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
a36d5b61 | 1157 | |
bf139726 | 1158 | led_classdev_suspend(&rr3->led); |
c49fcdde SY |
1159 | usb_kill_urb(rr3->narrow_urb); |
1160 | usb_kill_urb(rr3->wide_urb); | |
bf139726 | 1161 | usb_kill_urb(rr3->flash_urb); |
2154be65 JW |
1162 | return 0; |
1163 | } | |
1164 | ||
1165 | static int redrat3_dev_resume(struct usb_interface *intf) | |
1166 | { | |
1167 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
a36d5b61 | 1168 | |
c49fcdde SY |
1169 | if (usb_submit_urb(rr3->narrow_urb, GFP_ATOMIC)) |
1170 | return -EIO; | |
1171 | if (usb_submit_urb(rr3->wide_urb, GFP_ATOMIC)) | |
2154be65 | 1172 | return -EIO; |
bf139726 | 1173 | led_classdev_resume(&rr3->led); |
2154be65 JW |
1174 | return 0; |
1175 | } | |
1176 | ||
1177 | static struct usb_driver redrat3_dev_driver = { | |
1178 | .name = DRIVER_NAME, | |
1179 | .probe = redrat3_dev_probe, | |
4c62e976 | 1180 | .disconnect = redrat3_dev_disconnect, |
2154be65 JW |
1181 | .suspend = redrat3_dev_suspend, |
1182 | .resume = redrat3_dev_resume, | |
1183 | .reset_resume = redrat3_dev_resume, | |
1184 | .id_table = redrat3_dev_table | |
1185 | }; | |
1186 | ||
ecb3b2b3 | 1187 | module_usb_driver(redrat3_dev_driver); |
2154be65 JW |
1188 | |
1189 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1190 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1191 | MODULE_AUTHOR(DRIVER_AUTHOR2); | |
1192 | MODULE_LICENSE("GPL"); | |
1193 | MODULE_DEVICE_TABLE(usb, redrat3_dev_table); |