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c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2154be65 JW |
2 | /* |
3 | * USB RedRat3 IR Transceiver rc-core driver | |
4 | * | |
5 | * Copyright (c) 2011 by Jarod Wilson <jarod@redhat.com> | |
6 | * based heavily on the work of Stephen Cox, with additional | |
7 | * help from RedRat Ltd. | |
8 | * | |
adb08a09 | 9 | * This driver began life based on an old version of the first-generation |
2154be65 JW |
10 | * lirc_mceusb driver from the lirc 0.7.2 distribution. It was then |
11 | * significantly rewritten by Stephen Cox with the aid of RedRat Ltd's | |
12 | * Chris Dodge. | |
13 | * | |
14 | * The driver was then ported to rc-core and significantly rewritten again, | |
15 | * by Jarod, using the in-kernel mceusb driver as a guide, after an initial | |
16 | * port effort was started by Stephen. | |
17 | * | |
18 | * TODO LIST: | |
19 | * - fix lirc not showing repeats properly | |
20 | * -- | |
21 | * | |
22 | * The RedRat3 is a USB transceiver with both send & receive, | |
23 | * with 2 separate sensors available for receive to enable | |
24 | * both good long range reception for general use, and good | |
25 | * short range reception when required for learning a signal. | |
26 | * | |
27 | * http://www.redrat.co.uk/ | |
28 | * | |
29 | * It uses its own little protocol to communicate, the required | |
30 | * parts of which are embedded within this driver. | |
31 | * -- | |
2154be65 JW |
32 | */ |
33 | ||
4c055a5a | 34 | #include <asm/unaligned.h> |
2154be65 | 35 | #include <linux/device.h> |
bf139726 | 36 | #include <linux/leds.h> |
2154be65 JW |
37 | #include <linux/module.h> |
38 | #include <linux/slab.h> | |
39 | #include <linux/usb.h> | |
40 | #include <linux/usb/input.h> | |
41 | #include <media/rc-core.h> | |
42 | ||
43 | /* Driver Information */ | |
2154be65 JW |
44 | #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>" |
45 | #define DRIVER_AUTHOR2 "The Dweller, Stephen Cox" | |
46 | #define DRIVER_DESC "RedRat3 USB IR Transceiver Driver" | |
47 | #define DRIVER_NAME "redrat3" | |
48 | ||
2154be65 JW |
49 | /* bulk data transfer types */ |
50 | #define RR3_ERROR 0x01 | |
51 | #define RR3_MOD_SIGNAL_IN 0x20 | |
52 | #define RR3_MOD_SIGNAL_OUT 0x21 | |
53 | ||
54 | /* Get the RR firmware version */ | |
55 | #define RR3_FW_VERSION 0xb1 | |
56 | #define RR3_FW_VERSION_LEN 64 | |
57 | /* Send encoded signal bulk-sent earlier*/ | |
58 | #define RR3_TX_SEND_SIGNAL 0xb3 | |
59 | #define RR3_SET_IR_PARAM 0xb7 | |
60 | #define RR3_GET_IR_PARAM 0xb8 | |
61 | /* Blink the red LED on the device */ | |
62 | #define RR3_BLINK_LED 0xb9 | |
63 | /* Read serial number of device */ | |
64 | #define RR3_READ_SER_NO 0xba | |
65 | #define RR3_SER_NO_LEN 4 | |
66 | /* Start capture with the RC receiver */ | |
67 | #define RR3_RC_DET_ENABLE 0xbb | |
68 | /* Stop capture with the RC receiver */ | |
69 | #define RR3_RC_DET_DISABLE 0xbc | |
c49fcdde SY |
70 | /* Start capture with the wideband receiver */ |
71 | #define RR3_MODSIG_CAPTURE 0xb2 | |
2154be65 JW |
72 | /* Return the status of RC detector capture */ |
73 | #define RR3_RC_DET_STATUS 0xbd | |
74 | /* Reset redrat */ | |
75 | #define RR3_RESET 0xa0 | |
76 | ||
77 | /* Max number of lengths in the signal. */ | |
78 | #define RR3_IR_IO_MAX_LENGTHS 0x01 | |
79 | /* Periods to measure mod. freq. */ | |
80 | #define RR3_IR_IO_PERIODS_MF 0x02 | |
81 | /* Size of memory for main signal data */ | |
82 | #define RR3_IR_IO_SIG_MEM_SIZE 0x03 | |
83 | /* Delta value when measuring lengths */ | |
84 | #define RR3_IR_IO_LENGTH_FUZZ 0x04 | |
85 | /* Timeout for end of signal detection */ | |
86 | #define RR3_IR_IO_SIG_TIMEOUT 0x05 | |
39c1cb2b | 87 | /* Minimum value for pause recognition. */ |
2154be65 JW |
88 | #define RR3_IR_IO_MIN_PAUSE 0x06 |
89 | ||
90 | /* Clock freq. of EZ-USB chip */ | |
91 | #define RR3_CLK 24000000 | |
92 | /* Clock periods per timer count */ | |
93 | #define RR3_CLK_PER_COUNT 12 | |
94 | /* (RR3_CLK / RR3_CLK_PER_COUNT) */ | |
95 | #define RR3_CLK_CONV_FACTOR 2000000 | |
c49fcdde SY |
96 | /* USB bulk-in wideband IR data endpoint address */ |
97 | #define RR3_WIDE_IN_EP_ADDR 0x81 | |
98 | /* USB bulk-in narrowband IR data endpoint address */ | |
99 | #define RR3_NARROW_IN_EP_ADDR 0x82 | |
2154be65 | 100 | |
2154be65 | 101 | /* Size of the fixed-length portion of the signal */ |
a48c4bbd | 102 | #define RR3_DRIVER_MAXLENS 255 |
2154be65 | 103 | #define RR3_MAX_SIG_SIZE 512 |
2154be65 JW |
104 | #define RR3_TIME_UNIT 50 |
105 | #define RR3_END_OF_SIGNAL 0x7f | |
2154be65 JW |
106 | #define RR3_TX_TRAILER_LEN 2 |
107 | #define RR3_RX_MIN_TIMEOUT 5 | |
108 | #define RR3_RX_MAX_TIMEOUT 2000 | |
109 | ||
110 | /* The 8051's CPUCS Register address */ | |
111 | #define RR3_CPUCS_REG_ADDR 0x7f92 | |
112 | ||
113 | #define USB_RR3USB_VENDOR_ID 0x112a | |
114 | #define USB_RR3USB_PRODUCT_ID 0x0001 | |
115 | #define USB_RR3IIUSB_PRODUCT_ID 0x0005 | |
116 | ||
d6ae162b SY |
117 | |
118 | /* | |
119 | * The redrat3 encodes an IR signal as set of different lengths and a set | |
120 | * of indices into those lengths. This sets how much two lengths must | |
121 | * differ before they are considered distinct, the value is specified | |
122 | * in microseconds. | |
123 | * Default 5, value 0 to 127. | |
124 | */ | |
125 | static int length_fuzz = 5; | |
126 | module_param(length_fuzz, uint, 0644); | |
127 | MODULE_PARM_DESC(length_fuzz, "Length Fuzz (0-127)"); | |
128 | ||
129 | /* | |
130 | * When receiving a continuous ir stream (for example when a user is | |
131 | * holding a button down on a remote), this specifies the minimum size | |
132 | * of a space when the redrat3 sends a irdata packet to the host. Specified | |
04ad3011 | 133 | * in milliseconds. Default value 18ms. |
d6ae162b SY |
134 | * The value can be between 2 and 30 inclusive. |
135 | */ | |
136 | static int minimum_pause = 18; | |
137 | module_param(minimum_pause, uint, 0644); | |
138 | MODULE_PARM_DESC(minimum_pause, "Minimum Pause in ms (2-30)"); | |
139 | ||
140 | /* | |
141 | * The carrier frequency is measured during the first pulse of the IR | |
142 | * signal. The larger the number of periods used To measure, the more | |
143 | * accurate the result is likely to be, however some signals have short | |
144 | * initial pulses, so in some case it may be necessary to reduce this value. | |
145 | * Default 8, value 1 to 255. | |
146 | */ | |
147 | static int periods_measure_carrier = 8; | |
148 | module_param(periods_measure_carrier, uint, 0644); | |
149 | MODULE_PARM_DESC(periods_measure_carrier, "Number of Periods to Measure Carrier (1-255)"); | |
150 | ||
151 | ||
4c055a5a SY |
152 | struct redrat3_header { |
153 | __be16 length; | |
154 | __be16 transfer_type; | |
155 | } __packed; | |
156 | ||
157 | /* sending and receiving irdata */ | |
158 | struct redrat3_irdata { | |
159 | struct redrat3_header header; | |
160 | __be32 pause; | |
161 | __be16 mod_freq_count; | |
162 | __be16 num_periods; | |
163 | __u8 max_lengths; | |
164 | __u8 no_lengths; | |
165 | __be16 max_sig_size; | |
166 | __be16 sig_size; | |
167 | __u8 no_repeats; | |
168 | __be16 lens[RR3_DRIVER_MAXLENS]; /* not aligned */ | |
169 | __u8 sigdata[RR3_MAX_SIG_SIZE]; | |
170 | } __packed; | |
171 | ||
172 | /* firmware errors */ | |
173 | struct redrat3_error { | |
174 | struct redrat3_header header; | |
175 | __be16 fw_error; | |
176 | } __packed; | |
177 | ||
2154be65 | 178 | /* table of devices that work with this driver */ |
5fad16b5 | 179 | static const struct usb_device_id redrat3_dev_table[] = { |
2154be65 JW |
180 | /* Original version of the RedRat3 */ |
181 | {USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3USB_PRODUCT_ID)}, | |
182 | /* Second Version/release of the RedRat3 - RetRat3-II */ | |
183 | {USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3IIUSB_PRODUCT_ID)}, | |
184 | {} /* Terminating entry */ | |
185 | }; | |
186 | ||
187 | /* Structure to hold all of our device specific stuff */ | |
188 | struct redrat3_dev { | |
189 | /* core device bits */ | |
190 | struct rc_dev *rc; | |
191 | struct device *dev; | |
192 | ||
bf139726 SY |
193 | /* led control */ |
194 | struct led_classdev led; | |
195 | atomic_t flash; | |
196 | struct usb_ctrlrequest flash_control; | |
197 | struct urb *flash_urb; | |
198 | u8 flash_in_buf; | |
199 | ||
c49fcdde SY |
200 | /* learning */ |
201 | bool wideband; | |
202 | struct usb_ctrlrequest learn_control; | |
203 | struct urb *learn_urb; | |
204 | u8 learn_buf; | |
205 | ||
2154be65 JW |
206 | /* save off the usb device pointer */ |
207 | struct usb_device *udev; | |
208 | ||
209 | /* the receive endpoint */ | |
c49fcdde | 210 | struct usb_endpoint_descriptor *ep_narrow; |
2154be65 | 211 | /* the buffer to receive data */ |
4c055a5a | 212 | void *bulk_in_buf; |
2154be65 | 213 | /* urb used to read ir data */ |
c49fcdde SY |
214 | struct urb *narrow_urb; |
215 | struct urb *wide_urb; | |
2154be65 JW |
216 | |
217 | /* the send endpoint */ | |
218 | struct usb_endpoint_descriptor *ep_out; | |
2154be65 JW |
219 | |
220 | /* usb dma */ | |
221 | dma_addr_t dma_in; | |
2154be65 | 222 | |
2154be65 JW |
223 | /* Is the device currently transmitting?*/ |
224 | bool transmitting; | |
225 | ||
226 | /* store for current packet */ | |
4c055a5a | 227 | struct redrat3_irdata irdata; |
2154be65 | 228 | u16 bytes_read; |
2154be65 JW |
229 | |
230 | u32 carrier; | |
231 | ||
4c055a5a | 232 | char name[64]; |
2154be65 JW |
233 | char phys[64]; |
234 | }; | |
235 | ||
2154be65 JW |
236 | static void redrat3_dump_fw_error(struct redrat3_dev *rr3, int code) |
237 | { | |
238 | if (!rr3->transmitting && (code != 0x40)) | |
239 | dev_info(rr3->dev, "fw error code 0x%02x: ", code); | |
240 | ||
241 | switch (code) { | |
242 | case 0x00: | |
243 | pr_cont("No Error\n"); | |
244 | break; | |
245 | ||
246 | /* Codes 0x20 through 0x2f are IR Firmware Errors */ | |
247 | case 0x20: | |
25ec587c | 248 | pr_cont("Initial signal pulse not long enough to measure carrier frequency\n"); |
2154be65 JW |
249 | break; |
250 | case 0x21: | |
251 | pr_cont("Not enough length values allocated for signal\n"); | |
252 | break; | |
253 | case 0x22: | |
254 | pr_cont("Not enough memory allocated for signal data\n"); | |
255 | break; | |
256 | case 0x23: | |
257 | pr_cont("Too many signal repeats\n"); | |
258 | break; | |
259 | case 0x28: | |
25ec587c | 260 | pr_cont("Insufficient memory available for IR signal data memory allocation\n"); |
2154be65 JW |
261 | break; |
262 | case 0x29: | |
25ec587c | 263 | pr_cont("Insufficient memory available for IrDa signal data memory allocation\n"); |
2154be65 JW |
264 | break; |
265 | ||
266 | /* Codes 0x30 through 0x3f are USB Firmware Errors */ | |
267 | case 0x30: | |
25ec587c | 268 | pr_cont("Insufficient memory available for bulk transfer structure\n"); |
2154be65 JW |
269 | break; |
270 | ||
271 | /* | |
272 | * Other error codes... These are primarily errors that can occur in | |
273 | * the control messages sent to the redrat | |
274 | */ | |
275 | case 0x40: | |
276 | if (!rr3->transmitting) | |
277 | pr_cont("Signal capture has been terminated\n"); | |
278 | break; | |
279 | case 0x41: | |
25ec587c | 280 | pr_cont("Attempt to set/get and unknown signal I/O algorithm parameter\n"); |
2154be65 JW |
281 | break; |
282 | case 0x42: | |
283 | pr_cont("Signal capture already started\n"); | |
284 | break; | |
285 | ||
286 | default: | |
287 | pr_cont("Unknown Error\n"); | |
288 | break; | |
289 | } | |
290 | } | |
291 | ||
4c055a5a | 292 | static u32 redrat3_val_to_mod_freq(struct redrat3_irdata *irdata) |
2154be65 JW |
293 | { |
294 | u32 mod_freq = 0; | |
4c055a5a | 295 | u16 mod_freq_count = be16_to_cpu(irdata->mod_freq_count); |
2154be65 | 296 | |
4c055a5a SY |
297 | if (mod_freq_count != 0) |
298 | mod_freq = (RR3_CLK * be16_to_cpu(irdata->num_periods)) / | |
299 | (mod_freq_count * RR3_CLK_PER_COUNT); | |
2154be65 JW |
300 | |
301 | return mod_freq; | |
302 | } | |
303 | ||
304 | /* this function scales down the figures for the same result... */ | |
305 | static u32 redrat3_len_to_us(u32 length) | |
306 | { | |
307 | u32 biglen = length * 1000; | |
308 | u32 divisor = (RR3_CLK_CONV_FACTOR) / 1000; | |
309 | u32 result = (u32) (biglen / divisor); | |
310 | ||
311 | /* don't allow zero lengths to go back, breaks lirc */ | |
312 | return result ? result : 1; | |
313 | } | |
314 | ||
315 | /* | |
316 | * convert us back into redrat3 lengths | |
317 | * | |
318 | * length * 1000 length * 1000000 | |
319 | * ------------- = ---------------- = micro | |
320 | * rr3clk / 1000 rr3clk | |
321 | ||
322 | * 6 * 2 4 * 3 micro * rr3clk micro * rr3clk / 1000 | |
323 | * ----- = 4 ----- = 6 -------------- = len --------------------- | |
324 | * 3 2 1000000 1000 | |
325 | */ | |
326 | static u32 redrat3_us_to_len(u32 microsec) | |
327 | { | |
328 | u32 result; | |
329 | u32 divisor; | |
330 | ||
95cf60aa | 331 | microsec = (microsec > IR_MAX_DURATION) ? IR_MAX_DURATION : microsec; |
2154be65 JW |
332 | divisor = (RR3_CLK_CONV_FACTOR / 1000); |
333 | result = (u32)(microsec * divisor) / 1000; | |
334 | ||
335 | /* don't allow zero lengths to go back, breaks lirc */ | |
336 | return result ? result : 1; | |
2154be65 JW |
337 | } |
338 | ||
2154be65 JW |
339 | static void redrat3_process_ir_data(struct redrat3_dev *rr3) |
340 | { | |
183e19f5 | 341 | struct ir_raw_event rawir = {}; |
2154be65 | 342 | struct device *dev; |
528222d8 | 343 | unsigned int i, sig_size, offset, val; |
4c055a5a | 344 | u32 mod_freq; |
2154be65 | 345 | |
2154be65 | 346 | dev = rr3->dev; |
2154be65 | 347 | |
4c055a5a | 348 | mod_freq = redrat3_val_to_mod_freq(&rr3->irdata); |
3228bf81 | 349 | dev_dbg(dev, "Got mod_freq of %u\n", mod_freq); |
c49fcdde | 350 | if (mod_freq && rr3->wideband) { |
183e19f5 SY |
351 | struct ir_raw_event ev = { |
352 | .carrier_report = 1, | |
353 | .carrier = mod_freq | |
354 | }; | |
c49fcdde SY |
355 | |
356 | ir_raw_event_store(rr3->rc, &ev); | |
357 | } | |
2154be65 | 358 | |
2154be65 | 359 | /* process each rr3 encoded byte into an int */ |
4c055a5a SY |
360 | sig_size = be16_to_cpu(rr3->irdata.sig_size); |
361 | for (i = 0; i < sig_size; i++) { | |
362 | offset = rr3->irdata.sigdata[i]; | |
363 | val = get_unaligned_be16(&rr3->irdata.lens[offset]); | |
2154be65 | 364 | |
2154be65 JW |
365 | /* we should always get pulse/space/pulse/space samples */ |
366 | if (i % 2) | |
367 | rawir.pulse = false; | |
368 | else | |
369 | rawir.pulse = true; | |
370 | ||
528222d8 | 371 | rawir.duration = redrat3_len_to_us(val); |
2c594ffa | 372 | /* cap the value to IR_MAX_DURATION */ |
95cf60aa MCC |
373 | rawir.duration = (rawir.duration > IR_MAX_DURATION) ? |
374 | IR_MAX_DURATION : rawir.duration; | |
2c594ffa | 375 | |
3228bf81 | 376 | dev_dbg(dev, "storing %s with duration %d (i: %d)\n", |
2154be65 JW |
377 | rawir.pulse ? "pulse" : "space", rawir.duration, i); |
378 | ir_raw_event_store_with_filter(rr3->rc, &rawir); | |
379 | } | |
380 | ||
25da661a SY |
381 | /* add a trailing space */ |
382 | rawir.pulse = false; | |
383 | rawir.timeout = true; | |
c7470ff2 | 384 | rawir.duration = rr3->rc->timeout; |
25da661a SY |
385 | dev_dbg(dev, "storing trailing timeout with duration %d\n", |
386 | rawir.duration); | |
387 | ir_raw_event_store_with_filter(rr3->rc, &rawir); | |
2154be65 | 388 | |
3228bf81 | 389 | dev_dbg(dev, "calling ir_raw_event_handle\n"); |
2154be65 | 390 | ir_raw_event_handle(rr3->rc); |
2154be65 JW |
391 | } |
392 | ||
393 | /* Util fn to send rr3 cmds */ | |
6948524d | 394 | static int redrat3_send_cmd(int cmd, struct redrat3_dev *rr3) |
2154be65 JW |
395 | { |
396 | struct usb_device *udev; | |
397 | u8 *data; | |
398 | int res; | |
399 | ||
400 | data = kzalloc(sizeof(u8), GFP_KERNEL); | |
401 | if (!data) | |
402 | return -ENOMEM; | |
403 | ||
404 | udev = rr3->udev; | |
405 | res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), cmd, | |
406 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
baf1d0b8 | 407 | 0x0000, 0x0000, data, sizeof(u8), 10000); |
2154be65 JW |
408 | |
409 | if (res < 0) { | |
410 | dev_err(rr3->dev, "%s: Error sending rr3 cmd res %d, data %d", | |
411 | __func__, res, *data); | |
412 | res = -EIO; | |
413 | } else | |
4c055a5a | 414 | res = data[0]; |
2154be65 JW |
415 | |
416 | kfree(data); | |
417 | ||
418 | return res; | |
419 | } | |
420 | ||
421 | /* Enables the long range detector and starts async receive */ | |
422 | static int redrat3_enable_detector(struct redrat3_dev *rr3) | |
423 | { | |
424 | struct device *dev = rr3->dev; | |
425 | u8 ret; | |
426 | ||
2154be65 JW |
427 | ret = redrat3_send_cmd(RR3_RC_DET_ENABLE, rr3); |
428 | if (ret != 0) | |
429 | dev_dbg(dev, "%s: unexpected ret of %d\n", | |
430 | __func__, ret); | |
431 | ||
432 | ret = redrat3_send_cmd(RR3_RC_DET_STATUS, rr3); | |
433 | if (ret != 1) { | |
434 | dev_err(dev, "%s: detector status: %d, should be 1\n", | |
435 | __func__, ret); | |
436 | return -EIO; | |
437 | } | |
438 | ||
c49fcdde SY |
439 | ret = usb_submit_urb(rr3->narrow_urb, GFP_KERNEL); |
440 | if (ret) { | |
441 | dev_err(rr3->dev, "narrow band urb failed: %d", ret); | |
442 | return ret; | |
443 | } | |
2154be65 | 444 | |
c49fcdde SY |
445 | ret = usb_submit_urb(rr3->wide_urb, GFP_KERNEL); |
446 | if (ret) | |
447 | dev_err(rr3->dev, "wide band urb failed: %d", ret); | |
448 | ||
449 | return ret; | |
2154be65 JW |
450 | } |
451 | ||
2154be65 JW |
452 | static inline void redrat3_delete(struct redrat3_dev *rr3, |
453 | struct usb_device *udev) | |
454 | { | |
c49fcdde SY |
455 | usb_kill_urb(rr3->narrow_urb); |
456 | usb_kill_urb(rr3->wide_urb); | |
bf139726 | 457 | usb_kill_urb(rr3->flash_urb); |
c49fcdde SY |
458 | usb_kill_urb(rr3->learn_urb); |
459 | usb_free_urb(rr3->narrow_urb); | |
460 | usb_free_urb(rr3->wide_urb); | |
bf139726 | 461 | usb_free_urb(rr3->flash_urb); |
c49fcdde SY |
462 | usb_free_urb(rr3->learn_urb); |
463 | usb_free_coherent(udev, le16_to_cpu(rr3->ep_narrow->wMaxPacketSize), | |
2154be65 | 464 | rr3->bulk_in_buf, rr3->dma_in); |
2154be65 JW |
465 | |
466 | kfree(rr3); | |
467 | } | |
468 | ||
c53f9f00 | 469 | static u32 redrat3_get_timeout(struct redrat3_dev *rr3) |
2154be65 | 470 | { |
801b69f2 | 471 | __be32 *tmp; |
c53f9f00 | 472 | u32 timeout = MS_TO_US(150); /* a sane default, if things go haywire */ |
2154be65 JW |
473 | int len, ret, pipe; |
474 | ||
475 | len = sizeof(*tmp); | |
476 | tmp = kzalloc(len, GFP_KERNEL); | |
559f64d4 | 477 | if (!tmp) |
2154be65 | 478 | return timeout; |
2154be65 | 479 | |
c53f9f00 JW |
480 | pipe = usb_rcvctrlpipe(rr3->udev, 0); |
481 | ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM, | |
2154be65 | 482 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
baf1d0b8 | 483 | RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, 5000); |
801b69f2 | 484 | if (ret != len) |
c53f9f00 | 485 | dev_warn(rr3->dev, "Failed to read timeout from hardware\n"); |
801b69f2 SY |
486 | else { |
487 | timeout = redrat3_len_to_us(be32_to_cpup(tmp)); | |
488 | ||
3228bf81 | 489 | dev_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000); |
2154be65 JW |
490 | } |
491 | ||
801b69f2 | 492 | kfree(tmp); |
2154be65 | 493 | |
2154be65 JW |
494 | return timeout; |
495 | } | |
496 | ||
528222d8 | 497 | static int redrat3_set_timeout(struct rc_dev *rc_dev, unsigned int timeoutus) |
4f253cec SY |
498 | { |
499 | struct redrat3_dev *rr3 = rc_dev->priv; | |
500 | struct usb_device *udev = rr3->udev; | |
501 | struct device *dev = rr3->dev; | |
b1cb50be | 502 | __be32 *timeout; |
4f253cec SY |
503 | int ret; |
504 | ||
505 | timeout = kmalloc(sizeof(*timeout), GFP_KERNEL); | |
506 | if (!timeout) | |
507 | return -ENOMEM; | |
508 | ||
528222d8 | 509 | *timeout = cpu_to_be32(redrat3_us_to_len(timeoutus)); |
4f253cec SY |
510 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RR3_SET_IR_PARAM, |
511 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
512 | RR3_IR_IO_SIG_TIMEOUT, 0, timeout, sizeof(*timeout), | |
baf1d0b8 | 513 | 25000); |
4f253cec SY |
514 | dev_dbg(dev, "set ir parm timeout %d ret 0x%02x\n", |
515 | be32_to_cpu(*timeout), ret); | |
516 | ||
c7470ff2 | 517 | if (ret == sizeof(*timeout)) |
4f253cec | 518 | ret = 0; |
c7470ff2 | 519 | else if (ret >= 0) |
4f253cec SY |
520 | ret = -EIO; |
521 | ||
522 | kfree(timeout); | |
523 | ||
524 | return ret; | |
525 | } | |
526 | ||
2154be65 JW |
527 | static void redrat3_reset(struct redrat3_dev *rr3) |
528 | { | |
529 | struct usb_device *udev = rr3->udev; | |
530 | struct device *dev = rr3->dev; | |
531 | int rc, rxpipe, txpipe; | |
532 | u8 *val; | |
576df632 | 533 | size_t const len = sizeof(*val); |
2154be65 | 534 | |
2154be65 JW |
535 | rxpipe = usb_rcvctrlpipe(udev, 0); |
536 | txpipe = usb_sndctrlpipe(udev, 0); | |
537 | ||
fa7b9ac2 | 538 | val = kmalloc(len, GFP_KERNEL); |
559f64d4 | 539 | if (!val) |
2154be65 | 540 | return; |
2154be65 JW |
541 | |
542 | *val = 0x01; | |
543 | rc = usb_control_msg(udev, rxpipe, RR3_RESET, | |
544 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
baf1d0b8 | 545 | RR3_CPUCS_REG_ADDR, 0, val, len, 25000); |
3228bf81 | 546 | dev_dbg(dev, "reset returned 0x%02x\n", rc); |
2154be65 | 547 | |
d6ae162b | 548 | *val = length_fuzz; |
2154be65 JW |
549 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, |
550 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
baf1d0b8 | 551 | RR3_IR_IO_LENGTH_FUZZ, 0, val, len, 25000); |
3228bf81 | 552 | dev_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc); |
2154be65 | 553 | |
d6ae162b SY |
554 | *val = (65536 - (minimum_pause * 2000)) / 256; |
555 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, | |
556 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
baf1d0b8 | 557 | RR3_IR_IO_MIN_PAUSE, 0, val, len, 25000); |
d6ae162b SY |
558 | dev_dbg(dev, "set ir parm min pause %d rc 0x%02x\n", *val, rc); |
559 | ||
560 | *val = periods_measure_carrier; | |
561 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, | |
562 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
baf1d0b8 | 563 | RR3_IR_IO_PERIODS_MF, 0, val, len, 25000); |
d6ae162b SY |
564 | dev_dbg(dev, "set ir parm periods measure carrier %d rc 0x%02x", *val, |
565 | rc); | |
566 | ||
2154be65 JW |
567 | *val = RR3_DRIVER_MAXLENS; |
568 | rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM, | |
569 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
baf1d0b8 | 570 | RR3_IR_IO_MAX_LENGTHS, 0, val, len, 25000); |
3228bf81 | 571 | dev_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc); |
2154be65 JW |
572 | |
573 | kfree(val); | |
574 | } | |
575 | ||
576 | static void redrat3_get_firmware_rev(struct redrat3_dev *rr3) | |
577 | { | |
7aa20afe | 578 | int rc; |
2154be65 JW |
579 | char *buffer; |
580 | ||
0bebaa5f | 581 | buffer = kcalloc(RR3_FW_VERSION_LEN + 1, sizeof(*buffer), GFP_KERNEL); |
559f64d4 | 582 | if (!buffer) |
2154be65 | 583 | return; |
2154be65 JW |
584 | |
585 | rc = usb_control_msg(rr3->udev, usb_rcvctrlpipe(rr3->udev, 0), | |
586 | RR3_FW_VERSION, | |
587 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
baf1d0b8 | 588 | 0, 0, buffer, RR3_FW_VERSION_LEN, 5000); |
2154be65 JW |
589 | |
590 | if (rc >= 0) | |
591 | dev_info(rr3->dev, "Firmware rev: %s", buffer); | |
592 | else | |
593 | dev_err(rr3->dev, "Problem fetching firmware ID\n"); | |
594 | ||
595 | kfree(buffer); | |
2154be65 JW |
596 | } |
597 | ||
fa7b9ac2 | 598 | static void redrat3_read_packet_start(struct redrat3_dev *rr3, unsigned len) |
2154be65 | 599 | { |
4c055a5a SY |
600 | struct redrat3_header *header = rr3->bulk_in_buf; |
601 | unsigned pktlen, pkttype; | |
2154be65 | 602 | |
2154be65 | 603 | /* grab the Length and type of transfer */ |
4c055a5a SY |
604 | pktlen = be16_to_cpu(header->length); |
605 | pkttype = be16_to_cpu(header->transfer_type); | |
2154be65 | 606 | |
4c055a5a SY |
607 | if (pktlen > sizeof(rr3->irdata)) { |
608 | dev_warn(rr3->dev, "packet length %u too large\n", pktlen); | |
609 | return; | |
610 | } | |
2154be65 | 611 | |
4c055a5a | 612 | switch (pkttype) { |
2154be65 | 613 | case RR3_ERROR: |
4c055a5a SY |
614 | if (len >= sizeof(struct redrat3_error)) { |
615 | struct redrat3_error *error = rr3->bulk_in_buf; | |
616 | unsigned fw_error = be16_to_cpu(error->fw_error); | |
617 | redrat3_dump_fw_error(rr3, fw_error); | |
618 | } | |
2154be65 JW |
619 | break; |
620 | ||
621 | case RR3_MOD_SIGNAL_IN: | |
4c055a5a | 622 | memcpy(&rr3->irdata, rr3->bulk_in_buf, len); |
2154be65 | 623 | rr3->bytes_read = len; |
3228bf81 | 624 | dev_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", |
4c055a5a | 625 | rr3->bytes_read, pktlen); |
2154be65 JW |
626 | break; |
627 | ||
628 | default: | |
3228bf81 | 629 | dev_dbg(rr3->dev, "ignoring packet with type 0x%02x, len of %d, 0x%02x\n", |
4c055a5a | 630 | pkttype, len, pktlen); |
2154be65 JW |
631 | break; |
632 | } | |
633 | } | |
634 | ||
fa7b9ac2 | 635 | static void redrat3_read_packet_continue(struct redrat3_dev *rr3, unsigned len) |
2154be65 | 636 | { |
4c055a5a SY |
637 | void *irdata = &rr3->irdata; |
638 | ||
4c055a5a SY |
639 | if (len + rr3->bytes_read > sizeof(rr3->irdata)) { |
640 | dev_warn(rr3->dev, "too much data for packet\n"); | |
641 | rr3->bytes_read = 0; | |
642 | return; | |
643 | } | |
644 | ||
645 | memcpy(irdata + rr3->bytes_read, rr3->bulk_in_buf, len); | |
2154be65 JW |
646 | |
647 | rr3->bytes_read += len; | |
3228bf81 | 648 | dev_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", rr3->bytes_read, |
4c055a5a | 649 | be16_to_cpu(rr3->irdata.header.length)); |
2154be65 JW |
650 | } |
651 | ||
652 | /* gather IR data from incoming urb, process it when we have enough */ | |
fa7b9ac2 | 653 | static int redrat3_get_ir_data(struct redrat3_dev *rr3, unsigned len) |
2154be65 JW |
654 | { |
655 | struct device *dev = rr3->dev; | |
4c055a5a | 656 | unsigned pkttype; |
2154be65 JW |
657 | int ret = 0; |
658 | ||
4c055a5a | 659 | if (rr3->bytes_read == 0 && len >= sizeof(struct redrat3_header)) { |
2154be65 JW |
660 | redrat3_read_packet_start(rr3, len); |
661 | } else if (rr3->bytes_read != 0) { | |
662 | redrat3_read_packet_continue(rr3, len); | |
663 | } else if (rr3->bytes_read == 0) { | |
664 | dev_err(dev, "error: no packet data read\n"); | |
665 | ret = -ENODATA; | |
666 | goto out; | |
667 | } | |
668 | ||
38e35a85 SY |
669 | if (rr3->bytes_read < be16_to_cpu(rr3->irdata.header.length) + |
670 | sizeof(struct redrat3_header)) | |
2154be65 JW |
671 | /* we're still accumulating data */ |
672 | return 0; | |
673 | ||
674 | /* if we get here, we've got IR data to decode */ | |
4c055a5a SY |
675 | pkttype = be16_to_cpu(rr3->irdata.header.transfer_type); |
676 | if (pkttype == RR3_MOD_SIGNAL_IN) | |
2154be65 JW |
677 | redrat3_process_ir_data(rr3); |
678 | else | |
3228bf81 | 679 | dev_dbg(dev, "discarding non-signal data packet (type 0x%02x)\n", |
4c055a5a | 680 | pkttype); |
2154be65 JW |
681 | |
682 | out: | |
683 | rr3->bytes_read = 0; | |
2154be65 JW |
684 | return ret; |
685 | } | |
686 | ||
687 | /* callback function from USB when async USB request has completed */ | |
801b69f2 | 688 | static void redrat3_handle_async(struct urb *urb) |
2154be65 | 689 | { |
d6aca6ea | 690 | struct redrat3_dev *rr3 = urb->context; |
dbea1880 | 691 | int ret; |
2154be65 | 692 | |
2154be65 JW |
693 | switch (urb->status) { |
694 | case 0: | |
dbea1880 | 695 | ret = redrat3_get_ir_data(rr3, urb->actual_length); |
c49fcdde SY |
696 | if (!ret && rr3->wideband && !rr3->learn_urb->hcpriv) { |
697 | ret = usb_submit_urb(rr3->learn_urb, GFP_ATOMIC); | |
698 | if (ret) | |
699 | dev_err(rr3->dev, "Failed to submit learning urb: %d", | |
700 | ret); | |
701 | } | |
702 | ||
dbea1880 AV |
703 | if (!ret) { |
704 | /* no error, prepare to read more */ | |
c49fcdde SY |
705 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
706 | if (ret) | |
707 | dev_err(rr3->dev, "Failed to resubmit urb: %d", | |
708 | ret); | |
dbea1880 | 709 | } |
2154be65 JW |
710 | break; |
711 | ||
712 | case -ECONNRESET: | |
713 | case -ENOENT: | |
714 | case -ESHUTDOWN: | |
715 | usb_unlink_urb(urb); | |
716 | return; | |
717 | ||
718 | case -EPIPE: | |
719 | default: | |
720 | dev_warn(rr3->dev, "Error: urb status = %d\n", urb->status); | |
721 | rr3->bytes_read = 0; | |
2154be65 JW |
722 | break; |
723 | } | |
2154be65 JW |
724 | } |
725 | ||
2154be65 JW |
726 | static u16 mod_freq_to_val(unsigned int mod_freq) |
727 | { | |
728 | int mult = 6000000; | |
729 | ||
730 | /* Clk used in mod. freq. generation is CLK24/4. */ | |
4c055a5a | 731 | return 65536 - (mult / mod_freq); |
2154be65 JW |
732 | } |
733 | ||
dbea1880 | 734 | static int redrat3_set_tx_carrier(struct rc_dev *rcdev, u32 carrier) |
2154be65 | 735 | { |
dbea1880 AV |
736 | struct redrat3_dev *rr3 = rcdev->priv; |
737 | struct device *dev = rr3->dev; | |
2154be65 | 738 | |
3228bf81 | 739 | dev_dbg(dev, "Setting modulation frequency to %u", carrier); |
48cafec9 DC |
740 | if (carrier == 0) |
741 | return -EINVAL; | |
742 | ||
2154be65 JW |
743 | rr3->carrier = carrier; |
744 | ||
14d8188a | 745 | return 0; |
2154be65 JW |
746 | } |
747 | ||
dbea1880 AV |
748 | static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf, |
749 | unsigned count) | |
2154be65 JW |
750 | { |
751 | struct redrat3_dev *rr3 = rcdev->priv; | |
752 | struct device *dev = rr3->dev; | |
4c055a5a | 753 | struct redrat3_irdata *irdata = NULL; |
fa7b9ac2 | 754 | int ret, ret_len; |
2154be65 | 755 | int lencheck, cur_sample_len, pipe; |
2154be65 | 756 | int *sample_lens = NULL; |
2154be65 | 757 | u8 curlencheck = 0; |
fa7b9ac2 | 758 | unsigned i, sendbuf_len; |
2154be65 | 759 | |
2154be65 JW |
760 | if (rr3->transmitting) { |
761 | dev_warn(dev, "%s: transmitter already in use\n", __func__); | |
762 | return -EAGAIN; | |
763 | } | |
764 | ||
671ea670 SY |
765 | if (count > RR3_MAX_SIG_SIZE - RR3_TX_TRAILER_LEN) |
766 | return -EINVAL; | |
2154be65 | 767 | |
dbea1880 | 768 | /* rr3 will disable rc detector on transmit */ |
2154be65 JW |
769 | rr3->transmitting = true; |
770 | ||
0bebaa5f ME |
771 | sample_lens = kcalloc(RR3_DRIVER_MAXLENS, |
772 | sizeof(*sample_lens), | |
773 | GFP_KERNEL); | |
fac59136 ME |
774 | if (!sample_lens) |
775 | return -ENOMEM; | |
2154be65 | 776 | |
4c055a5a SY |
777 | irdata = kzalloc(sizeof(*irdata), GFP_KERNEL); |
778 | if (!irdata) { | |
801b69f2 SY |
779 | ret = -ENOMEM; |
780 | goto out; | |
781 | } | |
782 | ||
2154be65 | 783 | for (i = 0; i < count; i++) { |
06eae25f | 784 | cur_sample_len = redrat3_us_to_len(txbuf[i]); |
801b69f2 SY |
785 | if (cur_sample_len > 0xffff) { |
786 | dev_warn(dev, "transmit period of %uus truncated to %uus\n", | |
787 | txbuf[i], redrat3_len_to_us(0xffff)); | |
788 | cur_sample_len = 0xffff; | |
789 | } | |
2154be65 | 790 | for (lencheck = 0; lencheck < curlencheck; lencheck++) { |
2154be65 JW |
791 | if (sample_lens[lencheck] == cur_sample_len) |
792 | break; | |
793 | } | |
794 | if (lencheck == curlencheck) { | |
3228bf81 | 795 | dev_dbg(dev, "txbuf[%d]=%u, pos %d, enc %u\n", |
2154be65 | 796 | i, txbuf[i], curlencheck, cur_sample_len); |
06eae25f | 797 | if (curlencheck < RR3_DRIVER_MAXLENS) { |
2154be65 JW |
798 | /* now convert the value to a proper |
799 | * rr3 value.. */ | |
800 | sample_lens[curlencheck] = cur_sample_len; | |
4c055a5a SY |
801 | put_unaligned_be16(cur_sample_len, |
802 | &irdata->lens[curlencheck]); | |
2154be65 JW |
803 | curlencheck++; |
804 | } else { | |
671ea670 SY |
805 | ret = -EINVAL; |
806 | goto out; | |
2154be65 JW |
807 | } |
808 | } | |
4c055a5a | 809 | irdata->sigdata[i] = lencheck; |
2154be65 JW |
810 | } |
811 | ||
4c055a5a SY |
812 | irdata->sigdata[count] = RR3_END_OF_SIGNAL; |
813 | irdata->sigdata[count + 1] = RR3_END_OF_SIGNAL; | |
2154be65 | 814 | |
4c055a5a SY |
815 | sendbuf_len = offsetof(struct redrat3_irdata, |
816 | sigdata[count + RR3_TX_TRAILER_LEN]); | |
2154be65 | 817 | /* fill in our packet header */ |
4c055a5a SY |
818 | irdata->header.length = cpu_to_be16(sendbuf_len - |
819 | sizeof(struct redrat3_header)); | |
820 | irdata->header.transfer_type = cpu_to_be16(RR3_MOD_SIGNAL_OUT); | |
821 | irdata->pause = cpu_to_be32(redrat3_len_to_us(100)); | |
822 | irdata->mod_freq_count = cpu_to_be16(mod_freq_to_val(rr3->carrier)); | |
823 | irdata->no_lengths = curlencheck; | |
824 | irdata->sig_size = cpu_to_be16(count + RR3_TX_TRAILER_LEN); | |
2154be65 JW |
825 | |
826 | pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress); | |
4c055a5a | 827 | ret = usb_bulk_msg(rr3->udev, pipe, irdata, |
baf1d0b8 | 828 | sendbuf_len, &ret_len, 10000); |
3228bf81 | 829 | dev_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret); |
2154be65 JW |
830 | |
831 | /* now tell the hardware to transmit what we sent it */ | |
832 | pipe = usb_rcvctrlpipe(rr3->udev, 0); | |
833 | ret = usb_control_msg(rr3->udev, pipe, RR3_TX_SEND_SIGNAL, | |
834 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
baf1d0b8 | 835 | 0, 0, irdata, 2, 10000); |
2154be65 JW |
836 | |
837 | if (ret < 0) | |
838 | dev_err(dev, "Error: control msg send failed, rc %d\n", ret); | |
839 | else | |
dbea1880 | 840 | ret = count; |
2154be65 JW |
841 | |
842 | out: | |
4c055a5a | 843 | kfree(irdata); |
fac59136 | 844 | kfree(sample_lens); |
2154be65 JW |
845 | |
846 | rr3->transmitting = false; | |
dbea1880 | 847 | /* rr3 re-enables rc detector because it was enabled before */ |
2154be65 JW |
848 | |
849 | return ret; | |
850 | } | |
851 | ||
bf139726 SY |
852 | static void redrat3_brightness_set(struct led_classdev *led_dev, enum |
853 | led_brightness brightness) | |
854 | { | |
855 | struct redrat3_dev *rr3 = container_of(led_dev, struct redrat3_dev, | |
856 | led); | |
857 | ||
858 | if (brightness != LED_OFF && atomic_cmpxchg(&rr3->flash, 0, 1) == 0) { | |
859 | int ret = usb_submit_urb(rr3->flash_urb, GFP_ATOMIC); | |
860 | if (ret != 0) { | |
861 | dev_dbg(rr3->dev, "%s: unexpected ret of %d\n", | |
862 | __func__, ret); | |
863 | atomic_set(&rr3->flash, 0); | |
864 | } | |
865 | } | |
866 | } | |
867 | ||
c49fcdde SY |
868 | static int redrat3_wideband_receiver(struct rc_dev *rcdev, int enable) |
869 | { | |
870 | struct redrat3_dev *rr3 = rcdev->priv; | |
871 | int ret = 0; | |
872 | ||
873 | rr3->wideband = enable != 0; | |
874 | ||
875 | if (enable) { | |
876 | ret = usb_submit_urb(rr3->learn_urb, GFP_KERNEL); | |
877 | if (ret) | |
878 | dev_err(rr3->dev, "Failed to submit learning urb: %d", | |
879 | ret); | |
880 | } | |
881 | ||
882 | return ret; | |
883 | } | |
884 | ||
885 | static void redrat3_learn_complete(struct urb *urb) | |
886 | { | |
887 | struct redrat3_dev *rr3 = urb->context; | |
888 | ||
889 | switch (urb->status) { | |
890 | case 0: | |
891 | break; | |
892 | case -ECONNRESET: | |
893 | case -ENOENT: | |
894 | case -ESHUTDOWN: | |
895 | usb_unlink_urb(urb); | |
896 | return; | |
897 | case -EPIPE: | |
898 | default: | |
899 | dev_err(rr3->dev, "Error: learn urb status = %d", urb->status); | |
900 | break; | |
901 | } | |
902 | } | |
903 | ||
bf139726 SY |
904 | static void redrat3_led_complete(struct urb *urb) |
905 | { | |
906 | struct redrat3_dev *rr3 = urb->context; | |
907 | ||
908 | switch (urb->status) { | |
909 | case 0: | |
910 | break; | |
911 | case -ECONNRESET: | |
912 | case -ENOENT: | |
913 | case -ESHUTDOWN: | |
914 | usb_unlink_urb(urb); | |
915 | return; | |
916 | case -EPIPE: | |
917 | default: | |
918 | dev_dbg(rr3->dev, "Error: urb status = %d\n", urb->status); | |
919 | break; | |
920 | } | |
921 | ||
922 | rr3->led.brightness = LED_OFF; | |
923 | atomic_dec(&rr3->flash); | |
924 | } | |
925 | ||
2154be65 JW |
926 | static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3) |
927 | { | |
928 | struct device *dev = rr3->dev; | |
929 | struct rc_dev *rc; | |
9d45d5fb | 930 | int ret; |
2154be65 JW |
931 | u16 prod = le16_to_cpu(rr3->udev->descriptor.idProduct); |
932 | ||
0f7499fd | 933 | rc = rc_allocate_device(RC_DRIVER_IR_RAW); |
559f64d4 | 934 | if (!rc) |
3f81678d | 935 | return NULL; |
2154be65 | 936 | |
da500033 SY |
937 | snprintf(rr3->name, sizeof(rr3->name), |
938 | "RedRat3%s Infrared Remote Transceiver", | |
939 | prod == USB_RR3IIUSB_PRODUCT_ID ? "-II" : ""); | |
2154be65 JW |
940 | |
941 | usb_make_path(rr3->udev, rr3->phys, sizeof(rr3->phys)); | |
942 | ||
518f4b26 | 943 | rc->device_name = rr3->name; |
2154be65 JW |
944 | rc->input_phys = rr3->phys; |
945 | usb_to_input_id(rr3->udev, &rc->input_id); | |
946 | rc->dev.parent = dev; | |
947 | rc->priv = rr3; | |
6d741bfe | 948 | rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; |
528222d8 SY |
949 | rc->min_timeout = MS_TO_US(RR3_RX_MIN_TIMEOUT); |
950 | rc->max_timeout = MS_TO_US(RR3_RX_MAX_TIMEOUT); | |
951 | rc->timeout = redrat3_get_timeout(rr3); | |
4f253cec | 952 | rc->s_timeout = redrat3_set_timeout; |
2154be65 JW |
953 | rc->tx_ir = redrat3_transmit_ir; |
954 | rc->s_tx_carrier = redrat3_set_tx_carrier; | |
c49fcdde | 955 | rc->s_carrier_report = redrat3_wideband_receiver; |
2154be65 | 956 | rc->driver_name = DRIVER_NAME; |
528222d8 | 957 | rc->rx_resolution = 2; |
2154be65 JW |
958 | rc->map_name = RC_MAP_HAUPPAUGE; |
959 | ||
960 | ret = rc_register_device(rc); | |
961 | if (ret < 0) { | |
962 | dev_err(dev, "remote dev registration failed\n"); | |
963 | goto out; | |
964 | } | |
965 | ||
966 | return rc; | |
967 | ||
968 | out: | |
969 | rc_free_device(rc); | |
970 | return NULL; | |
971 | } | |
972 | ||
4c62e976 GKH |
973 | static int redrat3_dev_probe(struct usb_interface *intf, |
974 | const struct usb_device_id *id) | |
2154be65 JW |
975 | { |
976 | struct usb_device *udev = interface_to_usbdev(intf); | |
977 | struct device *dev = &intf->dev; | |
978 | struct usb_host_interface *uhi; | |
979 | struct redrat3_dev *rr3; | |
980 | struct usb_endpoint_descriptor *ep; | |
c49fcdde SY |
981 | struct usb_endpoint_descriptor *ep_narrow = NULL; |
982 | struct usb_endpoint_descriptor *ep_wide = NULL; | |
2154be65 JW |
983 | struct usb_endpoint_descriptor *ep_out = NULL; |
984 | u8 addr, attrs; | |
985 | int pipe, i; | |
986 | int retval = -ENOMEM; | |
987 | ||
2154be65 JW |
988 | uhi = intf->cur_altsetting; |
989 | ||
990 | /* find our bulk-in and bulk-out endpoints */ | |
991 | for (i = 0; i < uhi->desc.bNumEndpoints; ++i) { | |
992 | ep = &uhi->endpoint[i].desc; | |
993 | addr = ep->bEndpointAddress; | |
994 | attrs = ep->bmAttributes; | |
995 | ||
c49fcdde | 996 | if (((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && |
2154be65 JW |
997 | ((attrs & USB_ENDPOINT_XFERTYPE_MASK) == |
998 | USB_ENDPOINT_XFER_BULK)) { | |
3228bf81 | 999 | dev_dbg(dev, "found bulk-in endpoint at 0x%02x\n", |
2154be65 | 1000 | ep->bEndpointAddress); |
c49fcdde SY |
1001 | /* data comes in on 0x82, 0x81 is for learning */ |
1002 | if (ep->bEndpointAddress == RR3_NARROW_IN_EP_ADDR) | |
1003 | ep_narrow = ep; | |
1004 | if (ep->bEndpointAddress == RR3_WIDE_IN_EP_ADDR) | |
1005 | ep_wide = ep; | |
2154be65 JW |
1006 | } |
1007 | ||
1008 | if ((ep_out == NULL) && | |
1009 | ((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) && | |
1010 | ((attrs & USB_ENDPOINT_XFERTYPE_MASK) == | |
1011 | USB_ENDPOINT_XFER_BULK)) { | |
3228bf81 | 1012 | dev_dbg(dev, "found bulk-out endpoint at 0x%02x\n", |
2154be65 JW |
1013 | ep->bEndpointAddress); |
1014 | ep_out = ep; | |
1015 | } | |
1016 | } | |
1017 | ||
c49fcdde SY |
1018 | if (!ep_narrow || !ep_out || !ep_wide) { |
1019 | dev_err(dev, "Couldn't find all endpoints\n"); | |
2154be65 JW |
1020 | retval = -ENODEV; |
1021 | goto no_endpoints; | |
1022 | } | |
1023 | ||
1024 | /* allocate memory for our device state and initialize it */ | |
1025 | rr3 = kzalloc(sizeof(*rr3), GFP_KERNEL); | |
559f64d4 | 1026 | if (!rr3) |
7eb75715 | 1027 | goto no_endpoints; |
2154be65 JW |
1028 | |
1029 | rr3->dev = &intf->dev; | |
c49fcdde | 1030 | rr3->ep_narrow = ep_narrow; |
8a21ec9b SY |
1031 | rr3->ep_out = ep_out; |
1032 | rr3->udev = udev; | |
2154be65 JW |
1033 | |
1034 | /* set up bulk-in endpoint */ | |
c49fcdde SY |
1035 | rr3->narrow_urb = usb_alloc_urb(0, GFP_KERNEL); |
1036 | if (!rr3->narrow_urb) | |
1037 | goto redrat_free; | |
1038 | ||
1039 | rr3->wide_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1040 | if (!rr3->wide_urb) | |
8a21ec9b | 1041 | goto redrat_free; |
2154be65 | 1042 | |
fa7b9ac2 | 1043 | rr3->bulk_in_buf = usb_alloc_coherent(udev, |
c49fcdde SY |
1044 | le16_to_cpu(ep_narrow->wMaxPacketSize), |
1045 | GFP_KERNEL, &rr3->dma_in); | |
559f64d4 | 1046 | if (!rr3->bulk_in_buf) |
8a21ec9b | 1047 | goto redrat_free; |
2154be65 | 1048 | |
c49fcdde SY |
1049 | pipe = usb_rcvbulkpipe(udev, ep_narrow->bEndpointAddress); |
1050 | usb_fill_bulk_urb(rr3->narrow_urb, udev, pipe, rr3->bulk_in_buf, | |
1051 | le16_to_cpu(ep_narrow->wMaxPacketSize), | |
1052 | redrat3_handle_async, rr3); | |
1053 | rr3->narrow_urb->transfer_dma = rr3->dma_in; | |
1054 | rr3->narrow_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1055 | ||
1056 | pipe = usb_rcvbulkpipe(udev, ep_wide->bEndpointAddress); | |
1057 | usb_fill_bulk_urb(rr3->wide_urb, udev, pipe, rr3->bulk_in_buf, | |
1058 | le16_to_cpu(ep_narrow->wMaxPacketSize), | |
1059 | redrat3_handle_async, rr3); | |
1060 | rr3->wide_urb->transfer_dma = rr3->dma_in; | |
1061 | rr3->wide_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
2154be65 | 1062 | |
2154be65 JW |
1063 | redrat3_reset(rr3); |
1064 | redrat3_get_firmware_rev(rr3); | |
1065 | ||
2154be65 JW |
1066 | /* default.. will get overridden by any sends with a freq defined */ |
1067 | rr3->carrier = 38000; | |
1068 | ||
bf139726 SY |
1069 | atomic_set(&rr3->flash, 0); |
1070 | rr3->flash_urb = usb_alloc_urb(0, GFP_KERNEL); | |
8a21ec9b SY |
1071 | if (!rr3->flash_urb) |
1072 | goto redrat_free; | |
bf139726 | 1073 | |
c49fcdde SY |
1074 | /* learn urb */ |
1075 | rr3->learn_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1076 | if (!rr3->learn_urb) | |
1077 | goto redrat_free; | |
1078 | ||
1079 | /* setup packet is 'c0 b2 0000 0000 0001' */ | |
1080 | rr3->learn_control.bRequestType = 0xc0; | |
1081 | rr3->learn_control.bRequest = RR3_MODSIG_CAPTURE; | |
1082 | rr3->learn_control.wLength = cpu_to_le16(1); | |
1083 | ||
1084 | usb_fill_control_urb(rr3->learn_urb, udev, usb_rcvctrlpipe(udev, 0), | |
1085 | (unsigned char *)&rr3->learn_control, | |
1086 | &rr3->learn_buf, sizeof(rr3->learn_buf), | |
1087 | redrat3_learn_complete, rr3); | |
1088 | ||
bf139726 SY |
1089 | /* setup packet is 'c0 b9 0000 0000 0001' */ |
1090 | rr3->flash_control.bRequestType = 0xc0; | |
1091 | rr3->flash_control.bRequest = RR3_BLINK_LED; | |
1092 | rr3->flash_control.wLength = cpu_to_le16(1); | |
1093 | ||
1094 | usb_fill_control_urb(rr3->flash_urb, udev, usb_rcvctrlpipe(udev, 0), | |
1095 | (unsigned char *)&rr3->flash_control, | |
1096 | &rr3->flash_in_buf, sizeof(rr3->flash_in_buf), | |
1097 | redrat3_led_complete, rr3); | |
1098 | ||
8a21ec9b SY |
1099 | /* led control */ |
1100 | rr3->led.name = "redrat3:red:feedback"; | |
1101 | rr3->led.default_trigger = "rc-feedback"; | |
1102 | rr3->led.brightness_set = redrat3_brightness_set; | |
1103 | retval = led_classdev_register(&intf->dev, &rr3->led); | |
1104 | if (retval) | |
1105 | goto redrat_free; | |
1106 | ||
2154be65 | 1107 | rr3->rc = redrat3_init_rc_dev(rr3); |
6ea7cf76 PST |
1108 | if (!rr3->rc) { |
1109 | retval = -ENOMEM; | |
8a21ec9b | 1110 | goto led_free; |
6ea7cf76 | 1111 | } |
2154be65 | 1112 | |
8a21ec9b SY |
1113 | /* might be all we need to do? */ |
1114 | retval = redrat3_enable_detector(rr3); | |
1115 | if (retval < 0) | |
1116 | goto led_free; | |
1117 | ||
2154be65 JW |
1118 | /* we can register the device now, as it is ready */ |
1119 | usb_set_intfdata(intf, rr3); | |
1120 | ||
2154be65 JW |
1121 | return 0; |
1122 | ||
8a21ec9b | 1123 | led_free: |
bf139726 | 1124 | led_classdev_unregister(&rr3->led); |
8a21ec9b | 1125 | redrat_free: |
2154be65 JW |
1126 | redrat3_delete(rr3, rr3->udev); |
1127 | ||
1128 | no_endpoints: | |
2154be65 JW |
1129 | return retval; |
1130 | } | |
1131 | ||
4c62e976 | 1132 | static void redrat3_dev_disconnect(struct usb_interface *intf) |
2154be65 JW |
1133 | { |
1134 | struct usb_device *udev = interface_to_usbdev(intf); | |
1135 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
1136 | ||
2154be65 JW |
1137 | usb_set_intfdata(intf, NULL); |
1138 | rc_unregister_device(rr3->rc); | |
bf139726 | 1139 | led_classdev_unregister(&rr3->led); |
2154be65 | 1140 | redrat3_delete(rr3, udev); |
2154be65 JW |
1141 | } |
1142 | ||
1143 | static int redrat3_dev_suspend(struct usb_interface *intf, pm_message_t message) | |
1144 | { | |
1145 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
a36d5b61 | 1146 | |
bf139726 | 1147 | led_classdev_suspend(&rr3->led); |
c49fcdde SY |
1148 | usb_kill_urb(rr3->narrow_urb); |
1149 | usb_kill_urb(rr3->wide_urb); | |
bf139726 | 1150 | usb_kill_urb(rr3->flash_urb); |
2154be65 JW |
1151 | return 0; |
1152 | } | |
1153 | ||
1154 | static int redrat3_dev_resume(struct usb_interface *intf) | |
1155 | { | |
1156 | struct redrat3_dev *rr3 = usb_get_intfdata(intf); | |
a36d5b61 | 1157 | |
c49fcdde SY |
1158 | if (usb_submit_urb(rr3->narrow_urb, GFP_ATOMIC)) |
1159 | return -EIO; | |
1160 | if (usb_submit_urb(rr3->wide_urb, GFP_ATOMIC)) | |
2154be65 | 1161 | return -EIO; |
bf139726 | 1162 | led_classdev_resume(&rr3->led); |
2154be65 JW |
1163 | return 0; |
1164 | } | |
1165 | ||
1166 | static struct usb_driver redrat3_dev_driver = { | |
1167 | .name = DRIVER_NAME, | |
1168 | .probe = redrat3_dev_probe, | |
4c62e976 | 1169 | .disconnect = redrat3_dev_disconnect, |
2154be65 JW |
1170 | .suspend = redrat3_dev_suspend, |
1171 | .resume = redrat3_dev_resume, | |
1172 | .reset_resume = redrat3_dev_resume, | |
1173 | .id_table = redrat3_dev_table | |
1174 | }; | |
1175 | ||
ecb3b2b3 | 1176 | module_usb_driver(redrat3_dev_driver); |
2154be65 JW |
1177 | |
1178 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1179 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
1180 | MODULE_AUTHOR(DRIVER_AUTHOR2); | |
1181 | MODULE_LICENSE("GPL"); | |
1182 | MODULE_DEVICE_TABLE(usb, redrat3_dev_table); |