Lines Matching +full:ir +full:- +full:receiver
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * IguanaWorks USB IR Transceiver support
15 #include <media/rc-core.h>
29 /* receiver support */
79 static void process_ir_data(struct iguanair *ir, unsigned len) in process_ir_data() argument
81 if (len >= 4 && ir->buf_in[0] == 0 && ir->buf_in[1] == 0) { in process_ir_data()
82 switch (ir->buf_in[3]) { in process_ir_data()
85 ir->version = (ir->buf_in[5] << 8) | in process_ir_data()
86 ir->buf_in[4]; in process_ir_data()
87 complete(&ir->completion); in process_ir_data()
92 ir->bufsize = ir->buf_in[4]; in process_ir_data()
93 complete(&ir->completion); in process_ir_data()
98 ir->cycle_overhead = ir->buf_in[5]; in process_ir_data()
99 complete(&ir->completion); in process_ir_data()
103 ir->tx_overflow = true; in process_ir_data()
108 complete(&ir->completion); in process_ir_data()
111 dev_warn(ir->dev, "receive overflow\n"); in process_ir_data()
112 ir_raw_event_overflow(ir->rc); in process_ir_data()
115 dev_warn(ir->dev, "control code %02x received\n", in process_ir_data()
116 ir->buf_in[3]); in process_ir_data()
125 if (ir->buf_in[i] == 0x80) { in process_ir_data()
129 rawir.pulse = (ir->buf_in[i] & 0x80) == 0; in process_ir_data()
130 rawir.duration = ((ir->buf_in[i] & 0x7f) + 1) * in process_ir_data()
134 if (ir_raw_event_store_with_filter(ir->rc, &rawir)) in process_ir_data()
139 ir_raw_event_handle(ir->rc); in process_ir_data()
145 struct iguanair *ir; in iguanair_rx() local
151 ir = urb->context; in iguanair_rx()
152 if (!ir) in iguanair_rx()
155 switch (urb->status) { in iguanair_rx()
157 process_ir_data(ir, urb->actual_length); in iguanair_rx()
159 case -ECONNRESET: in iguanair_rx()
160 case -ENOENT: in iguanair_rx()
161 case -ESHUTDOWN: in iguanair_rx()
163 case -EPIPE: in iguanair_rx()
165 dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status); in iguanair_rx()
170 if (rc && rc != -ENODEV) in iguanair_rx()
171 dev_warn(ir->dev, "failed to resubmit urb: %d\n", rc); in iguanair_rx()
176 struct iguanair *ir = urb->context; in iguanair_irq_out() local
178 if (urb->status) in iguanair_irq_out()
179 dev_dbg(ir->dev, "Error: out urb status = %d\n", urb->status); in iguanair_irq_out()
182 if (urb->status == 0 && ir->packet->header.cmd == CMD_NOP) in iguanair_irq_out()
183 complete(&ir->completion); in iguanair_irq_out()
186 static int iguanair_send(struct iguanair *ir, unsigned size) in iguanair_send() argument
190 reinit_completion(&ir->completion); in iguanair_send()
192 ir->urb_out->transfer_buffer_length = size; in iguanair_send()
193 rc = usb_submit_urb(ir->urb_out, GFP_KERNEL); in iguanair_send()
197 if (wait_for_completion_timeout(&ir->completion, TIMEOUT) == 0) { in iguanair_send()
198 usb_kill_urb(ir->urb_out); in iguanair_send()
199 return -ETIMEDOUT; in iguanair_send()
205 static int iguanair_get_features(struct iguanair *ir) in iguanair_get_features() argument
214 ir->packet->header.start = 0; in iguanair_get_features()
215 ir->packet->header.direction = DIR_OUT; in iguanair_get_features()
216 ir->packet->header.cmd = CMD_NOP; in iguanair_get_features()
217 iguanair_send(ir, sizeof(ir->packet->header)); in iguanair_get_features()
219 ir->packet->header.cmd = CMD_GET_VERSION; in iguanair_get_features()
220 rc = iguanair_send(ir, sizeof(ir->packet->header)); in iguanair_get_features()
222 dev_info(ir->dev, "failed to get version\n"); in iguanair_get_features()
226 if (ir->version < 0x205) { in iguanair_get_features()
227 dev_err(ir->dev, "firmware 0x%04x is too old\n", ir->version); in iguanair_get_features()
228 rc = -ENODEV; in iguanair_get_features()
232 ir->bufsize = 150; in iguanair_get_features()
233 ir->cycle_overhead = 65; in iguanair_get_features()
235 ir->packet->header.cmd = CMD_GET_BUFSIZE; in iguanair_get_features()
237 rc = iguanair_send(ir, sizeof(ir->packet->header)); in iguanair_get_features()
239 dev_info(ir->dev, "failed to get buffer size\n"); in iguanair_get_features()
243 if (ir->bufsize > BUF_SIZE) { in iguanair_get_features()
244 dev_info(ir->dev, "buffer size %u larger than expected\n", in iguanair_get_features()
245 ir->bufsize); in iguanair_get_features()
246 ir->bufsize = BUF_SIZE; in iguanair_get_features()
249 ir->packet->header.cmd = CMD_GET_FEATURES; in iguanair_get_features()
251 rc = iguanair_send(ir, sizeof(ir->packet->header)); in iguanair_get_features()
253 dev_info(ir->dev, "failed to get features\n"); in iguanair_get_features()
258 static int iguanair_receiver(struct iguanair *ir, bool enable) in iguanair_receiver() argument
260 ir->packet->header.start = 0; in iguanair_receiver()
261 ir->packet->header.direction = DIR_OUT; in iguanair_receiver()
262 ir->packet->header.cmd = enable ? CMD_RECEIVER_ON : CMD_RECEIVER_OFF; in iguanair_receiver()
264 return iguanair_send(ir, sizeof(ir->packet->header)); in iguanair_receiver()
270 * broken down into 7-cycles and 4-cyles delays, with a preference for
271 * 4-cycle delays, minus the overhead of the loop itself (cycle_overhead).
275 struct iguanair *ir = dev->priv; in iguanair_set_tx_carrier() local
278 return -EINVAL; in iguanair_set_tx_carrier()
280 if (carrier != ir->carrier) { in iguanair_set_tx_carrier()
283 ir->carrier = carrier; in iguanair_set_tx_carrier()
285 cycles = DIV_ROUND_CLOSEST(24000000, carrier * 2) - in iguanair_set_tx_carrier()
286 ir->cycle_overhead; in iguanair_set_tx_carrier()
293 sevens = (4 - cycles) & 3; in iguanair_set_tx_carrier()
294 fours = (cycles - sevens * 7) / 4; in iguanair_set_tx_carrier()
304 ir->packet->busy7 = (4 - sevens) * 2; in iguanair_set_tx_carrier()
305 ir->packet->busy4 = 110 - fours; in iguanair_set_tx_carrier()
313 struct iguanair *ir = dev->priv; in iguanair_set_tx_mask() local
318 ir->packet->channels = mask << 4; in iguanair_set_tx_mask()
325 struct iguanair *ir = dev->priv; in iguanair_tx() local
331 periods = DIV_ROUND_CLOSEST(txbuf[i] * ir->carrier, 1000000); in iguanair_tx()
334 if (size >= ir->bufsize) { in iguanair_tx()
335 rc = -EINVAL; in iguanair_tx()
338 ir->packet->payload[size++] = p | ((i & 1) ? 0x80 : 0); in iguanair_tx()
339 periods -= p; in iguanair_tx()
343 ir->packet->header.start = 0; in iguanair_tx()
344 ir->packet->header.direction = DIR_OUT; in iguanair_tx()
345 ir->packet->header.cmd = CMD_SEND; in iguanair_tx()
346 ir->packet->length = size; in iguanair_tx()
348 ir->tx_overflow = false; in iguanair_tx()
350 rc = iguanair_send(ir, sizeof(*ir->packet) + size); in iguanair_tx()
352 if (rc == 0 && ir->tx_overflow) in iguanair_tx()
353 rc = -EOVERFLOW; in iguanair_tx()
361 struct iguanair *ir = rdev->priv; in iguanair_open() local
364 rc = iguanair_receiver(ir, true); in iguanair_open()
366 ir->receiver_on = true; in iguanair_open()
373 struct iguanair *ir = rdev->priv; in iguanair_close() local
376 rc = iguanair_receiver(ir, false); in iguanair_close()
377 ir->receiver_on = false; in iguanair_close()
378 if (rc && rc != -ENODEV) in iguanair_close()
379 dev_warn(ir->dev, "failed to disable receiver: %d\n", rc); in iguanair_close()
386 struct iguanair *ir; in iguanair_probe() local
391 idesc = intf->cur_altsetting; in iguanair_probe()
392 if (idesc->desc.bNumEndpoints < 2) in iguanair_probe()
393 return -ENODEV; in iguanair_probe()
395 ir = kzalloc(sizeof(*ir), GFP_KERNEL); in iguanair_probe()
397 if (!ir || !rc) { in iguanair_probe()
398 ret = -ENOMEM; in iguanair_probe()
402 ir->buf_in = usb_alloc_coherent(udev, MAX_IN_PACKET, GFP_KERNEL, in iguanair_probe()
403 &ir->dma_in); in iguanair_probe()
404 ir->packet = usb_alloc_coherent(udev, MAX_OUT_PACKET, GFP_KERNEL, in iguanair_probe()
405 &ir->dma_out); in iguanair_probe()
406 ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); in iguanair_probe()
407 ir->urb_out = usb_alloc_urb(0, GFP_KERNEL); in iguanair_probe()
409 if (!ir->buf_in || !ir->packet || !ir->urb_in || !ir->urb_out || in iguanair_probe()
410 !usb_endpoint_is_int_in(&idesc->endpoint[0].desc) || in iguanair_probe()
411 !usb_endpoint_is_int_out(&idesc->endpoint[1].desc)) { in iguanair_probe()
412 ret = -ENOMEM; in iguanair_probe()
416 ir->rc = rc; in iguanair_probe()
417 ir->dev = &intf->dev; in iguanair_probe()
418 ir->udev = udev; in iguanair_probe()
420 init_completion(&ir->completion); in iguanair_probe()
422 idesc->endpoint[1].desc.bEndpointAddress); in iguanair_probe()
423 usb_fill_int_urb(ir->urb_out, udev, pipeout, ir->packet, MAX_OUT_PACKET, in iguanair_probe()
424 iguanair_irq_out, ir, 1); in iguanair_probe()
425 ir->urb_out->transfer_dma = ir->dma_out; in iguanair_probe()
426 ir->urb_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; in iguanair_probe()
428 pipein = usb_rcvintpipe(udev, idesc->endpoint[0].desc.bEndpointAddress); in iguanair_probe()
429 usb_fill_int_urb(ir->urb_in, udev, pipein, ir->buf_in, MAX_IN_PACKET, in iguanair_probe()
430 iguanair_rx, ir, 1); in iguanair_probe()
431 ir->urb_in->transfer_dma = ir->dma_in; in iguanair_probe()
432 ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; in iguanair_probe()
434 ret = usb_submit_urb(ir->urb_in, GFP_KERNEL); in iguanair_probe()
436 dev_warn(&intf->dev, "failed to submit urb: %d\n", ret); in iguanair_probe()
440 ret = iguanair_get_features(ir); in iguanair_probe()
444 snprintf(ir->name, sizeof(ir->name), in iguanair_probe()
445 "IguanaWorks USB IR Transceiver version 0x%04x", ir->version); in iguanair_probe()
447 usb_make_path(ir->udev, ir->phys, sizeof(ir->phys)); in iguanair_probe()
449 rc->device_name = ir->name; in iguanair_probe()
450 rc->input_phys = ir->phys; in iguanair_probe()
451 usb_to_input_id(ir->udev, &rc->input_id); in iguanair_probe()
452 rc->dev.parent = &intf->dev; in iguanair_probe()
453 rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; in iguanair_probe()
454 rc->priv = ir; in iguanair_probe()
455 rc->open = iguanair_open; in iguanair_probe()
456 rc->close = iguanair_close; in iguanair_probe()
457 rc->s_tx_mask = iguanair_set_tx_mask; in iguanair_probe()
458 rc->s_tx_carrier = iguanair_set_tx_carrier; in iguanair_probe()
459 rc->tx_ir = iguanair_tx; in iguanair_probe()
460 rc->driver_name = KBUILD_MODNAME; in iguanair_probe()
461 rc->map_name = RC_MAP_RC6_MCE; in iguanair_probe()
462 rc->min_timeout = 1; in iguanair_probe()
463 rc->timeout = IR_DEFAULT_TIMEOUT; in iguanair_probe()
464 rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT; in iguanair_probe()
465 rc->rx_resolution = RX_RESOLUTION; in iguanair_probe()
472 dev_err(&intf->dev, "failed to register rc device %d", ret); in iguanair_probe()
476 usb_set_intfdata(intf, ir); in iguanair_probe()
480 usb_kill_urb(ir->urb_in); in iguanair_probe()
481 usb_kill_urb(ir->urb_out); in iguanair_probe()
483 if (ir) { in iguanair_probe()
484 usb_free_urb(ir->urb_in); in iguanair_probe()
485 usb_free_urb(ir->urb_out); in iguanair_probe()
486 usb_free_coherent(udev, MAX_IN_PACKET, ir->buf_in, ir->dma_in); in iguanair_probe()
487 usb_free_coherent(udev, MAX_OUT_PACKET, ir->packet, in iguanair_probe()
488 ir->dma_out); in iguanair_probe()
491 kfree(ir); in iguanair_probe()
497 struct iguanair *ir = usb_get_intfdata(intf); in iguanair_disconnect() local
499 rc_unregister_device(ir->rc); in iguanair_disconnect()
501 usb_kill_urb(ir->urb_in); in iguanair_disconnect()
502 usb_kill_urb(ir->urb_out); in iguanair_disconnect()
503 usb_free_urb(ir->urb_in); in iguanair_disconnect()
504 usb_free_urb(ir->urb_out); in iguanair_disconnect()
505 usb_free_coherent(ir->udev, MAX_IN_PACKET, ir->buf_in, ir->dma_in); in iguanair_disconnect()
506 usb_free_coherent(ir->udev, MAX_OUT_PACKET, ir->packet, ir->dma_out); in iguanair_disconnect()
507 kfree(ir); in iguanair_disconnect()
512 struct iguanair *ir = usb_get_intfdata(intf); in iguanair_suspend() local
515 if (ir->receiver_on) { in iguanair_suspend()
516 rc = iguanair_receiver(ir, false); in iguanair_suspend()
518 dev_warn(ir->dev, "failed to disable receiver for suspend\n"); in iguanair_suspend()
521 usb_kill_urb(ir->urb_in); in iguanair_suspend()
522 usb_kill_urb(ir->urb_out); in iguanair_suspend()
529 struct iguanair *ir = usb_get_intfdata(intf); in iguanair_resume() local
532 rc = usb_submit_urb(ir->urb_in, GFP_KERNEL); in iguanair_resume()
534 dev_warn(&intf->dev, "failed to submit urb: %d\n", rc); in iguanair_resume()
536 if (ir->receiver_on) { in iguanair_resume()
537 rc = iguanair_receiver(ir, true); in iguanair_resume()
539 dev_warn(ir->dev, "failed to enable receiver after resume\n"); in iguanair_resume()
558 .soft_unbind = 1 /* we want to disable receiver on unbind */
563 MODULE_DESCRIPTION("IguanaWorks USB IR Transceiver");