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Commit | Line | Data |
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c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
977e444f | 2 | /* |
f7e5a655 | 3 | * Mirics MSi2500 driver |
977e444f AP |
4 | * Mirics MSi3101 SDR Dongle driver |
5 | * | |
6 | * Copyright (C) 2013 Antti Palosaari <crope@iki.fi> | |
7 | * | |
00e049b0 AP |
8 | * That driver is somehow based of pwc driver: |
9 | * (C) 1999-2004 Nemosoft Unv. | |
10 | * (C) 2004-2006 Luc Saillard (luc@saillard.org) | |
11 | * (C) 2011 Hans de Goede <hdegoede@redhat.com> | |
977e444f AP |
12 | */ |
13 | ||
977e444f | 14 | #include <linux/module.h> |
977e444f | 15 | #include <linux/slab.h> |
04e40bdd | 16 | #include <asm/div64.h> |
977e444f AP |
17 | #include <media/v4l2-device.h> |
18 | #include <media/v4l2-ioctl.h> | |
19 | #include <media/v4l2-ctrls.h> | |
20 | #include <media/v4l2-event.h> | |
21 | #include <linux/usb.h> | |
2d700715 | 22 | #include <media/videobuf2-v4l2.h> |
977e444f | 23 | #include <media/videobuf2-vmalloc.h> |
2e68f841 | 24 | #include <linux/spi/spi.h> |
977e444f | 25 | |
06ce32cb AP |
26 | static bool msi2500_emulated_fmt; |
27 | module_param_named(emulated_formats, msi2500_emulated_fmt, bool, 0644); | |
3912eb6d AP |
28 | MODULE_PARM_DESC(emulated_formats, "enable emulated formats (disappears in future)"); |
29 | ||
977e444f AP |
30 | /* |
31 | * iConfiguration 0 | |
32 | * bInterfaceNumber 0 | |
33 | * bAlternateSetting 1 | |
34 | * bNumEndpoints 1 | |
35 | * bEndpointAddress 0x81 EP 1 IN | |
36 | * bmAttributes 1 | |
37 | * Transfer Type Isochronous | |
38 | * wMaxPacketSize 0x1400 3x 1024 bytes | |
39 | * bInterval 1 | |
40 | */ | |
41 | #define MAX_ISO_BUFS (8) | |
42 | #define ISO_FRAMES_PER_DESC (8) | |
43 | #define ISO_MAX_FRAME_SIZE (3 * 1024) | |
44 | #define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE) | |
977e444f AP |
45 | #define MAX_ISOC_ERRORS 20 |
46 | ||
c08de62f AP |
47 | /* |
48 | * TODO: These formats should be moved to V4L2 API. Formats are currently | |
49 | * disabled from formats[] table, not visible to userspace. | |
50 | */ | |
51 | /* signed 12-bit */ | |
52 | #define MSI2500_PIX_FMT_SDR_S12 v4l2_fourcc('D', 'S', '1', '2') | |
53 | /* Mirics MSi2500 format 384 */ | |
54 | #define MSI2500_PIX_FMT_SDR_MSI2500_384 v4l2_fourcc('M', '3', '8', '4') | |
3d0c8fa3 | 55 | |
2e68f841 | 56 | static const struct v4l2_frequency_band bands[] = { |
3d0c8fa3 AP |
57 | { |
58 | .tuner = 0, | |
59 | .type = V4L2_TUNER_ADC, | |
60 | .index = 0, | |
61 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
62 | .rangelow = 1200000, | |
63 | .rangehigh = 15000000, | |
64 | }, | |
65 | }; | |
66 | ||
3d0c8fa3 | 67 | /* stream formats */ |
06ce32cb | 68 | struct msi2500_format { |
3d0c8fa3 | 69 | u32 pixelformat; |
a54e0fee | 70 | u32 buffersize; |
3d0c8fa3 AP |
71 | }; |
72 | ||
73 | /* format descriptions for capture and preview */ | |
06ce32cb | 74 | static struct msi2500_format formats[] = { |
3d0c8fa3 | 75 | { |
3912eb6d | 76 | .pixelformat = V4L2_SDR_FMT_CS8, |
a54e0fee | 77 | .buffersize = 3 * 1008, |
3d0c8fa3 | 78 | #if 0 |
3d0c8fa3 | 79 | }, { |
c08de62f | 80 | .pixelformat = MSI2500_PIX_FMT_SDR_MSI2500_384, |
3d0c8fa3 | 81 | }, { |
c08de62f | 82 | .pixelformat = MSI2500_PIX_FMT_SDR_S12, |
3d0c8fa3 | 83 | #endif |
3912eb6d | 84 | }, { |
3912eb6d | 85 | .pixelformat = V4L2_SDR_FMT_CS14LE, |
a54e0fee | 86 | .buffersize = 3 * 1008, |
3912eb6d | 87 | }, { |
3912eb6d | 88 | .pixelformat = V4L2_SDR_FMT_CU8, |
a54e0fee | 89 | .buffersize = 3 * 1008, |
3912eb6d | 90 | }, { |
3912eb6d | 91 | .pixelformat = V4L2_SDR_FMT_CU16LE, |
a54e0fee | 92 | .buffersize = 3 * 1008, |
3d0c8fa3 AP |
93 | }, |
94 | }; | |
95 | ||
96 | static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); | |
977e444f AP |
97 | |
98 | /* intermediate buffers with raw data from the USB device */ | |
06ce32cb | 99 | struct msi2500_frame_buf { |
2d700715 JS |
100 | /* common v4l buffer stuff -- must be first */ |
101 | struct vb2_v4l2_buffer vb; | |
977e444f | 102 | struct list_head list; |
977e444f AP |
103 | }; |
104 | ||
f7e5a655 | 105 | struct msi2500_dev { |
100b7931 | 106 | struct device *dev; |
977e444f AP |
107 | struct video_device vdev; |
108 | struct v4l2_device v4l2_dev; | |
2e68f841 AP |
109 | struct v4l2_subdev *v4l2_subdev; |
110 | struct spi_master *master; | |
977e444f AP |
111 | |
112 | /* videobuf2 queue and queued buffers list */ | |
113 | struct vb2_queue vb_queue; | |
114 | struct list_head queued_bufs; | |
115 | spinlock_t queued_bufs_lock; /* Protects queued_bufs */ | |
116 | ||
117 | /* Note if taking both locks v4l2_lock must always be locked first! */ | |
118 | struct mutex v4l2_lock; /* Protects everything else */ | |
119 | struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ | |
120 | ||
121 | /* Pointer to our usb_device, will be NULL after unplug */ | |
122 | struct usb_device *udev; /* Both mutexes most be hold when setting! */ | |
123 | ||
2e68f841 | 124 | unsigned int f_adc; |
3d0c8fa3 | 125 | u32 pixelformat; |
a54e0fee | 126 | u32 buffersize; |
3912eb6d | 127 | unsigned int num_formats; |
3d0c8fa3 | 128 | |
977e444f AP |
129 | unsigned int isoc_errors; /* number of contiguous ISOC errors */ |
130 | unsigned int vb_full; /* vb is full and packets dropped */ | |
131 | ||
132 | struct urb *urbs[MAX_ISO_BUFS]; | |
133 | ||
134 | /* Controls */ | |
3d0c8fa3 | 135 | struct v4l2_ctrl_handler hdl; |
977e444f | 136 | |
34599b9b AP |
137 | u32 next_sample; /* for track lost packets */ |
138 | u32 sample; /* for sample rate calc */ | |
3d0c8fa3 | 139 | unsigned long jiffies_next; |
977e444f AP |
140 | }; |
141 | ||
142 | /* Private functions */ | |
06ce32cb | 143 | static struct msi2500_frame_buf *msi2500_get_next_fill_buf( |
f7e5a655 | 144 | struct msi2500_dev *dev) |
977e444f | 145 | { |
b63ab6b0 | 146 | unsigned long flags; |
06ce32cb | 147 | struct msi2500_frame_buf *buf = NULL; |
977e444f | 148 | |
f7e5a655 AP |
149 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
150 | if (list_empty(&dev->queued_bufs)) | |
977e444f AP |
151 | goto leave; |
152 | ||
f7e5a655 | 153 | buf = list_entry(dev->queued_bufs.next, struct msi2500_frame_buf, list); |
977e444f AP |
154 | list_del(&buf->list); |
155 | leave: | |
f7e5a655 | 156 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); |
977e444f AP |
157 | return buf; |
158 | } | |
159 | ||
02004681 AP |
160 | /* |
161 | * +=========================================================================== | |
3d0c8fa3 | 162 | * | 00-1023 | USB packet type '504' |
02004681 AP |
163 | * +=========================================================================== |
164 | * | 00- 03 | sequence number of first sample in that USB packet | |
165 | * +--------------------------------------------------------------------------- | |
166 | * | 04- 15 | garbage | |
167 | * +--------------------------------------------------------------------------- | |
3d0c8fa3 | 168 | * | 16-1023 | samples |
02004681 | 169 | * +--------------------------------------------------------------------------- |
3d0c8fa3 AP |
170 | * signed 8-bit sample |
171 | * 504 * 2 = 1008 samples | |
8591f708 AP |
172 | * |
173 | * | |
3d0c8fa3 AP |
174 | * +=========================================================================== |
175 | * | 00-1023 | USB packet type '384' | |
176 | * +=========================================================================== | |
177 | * | 00- 03 | sequence number of first sample in that USB packet | |
178 | * +--------------------------------------------------------------------------- | |
179 | * | 04- 15 | garbage | |
180 | * +--------------------------------------------------------------------------- | |
181 | * | 16- 175 | samples | |
182 | * +--------------------------------------------------------------------------- | |
183 | * | 176- 179 | control bits for previous samples | |
184 | * +--------------------------------------------------------------------------- | |
185 | * | 180- 339 | samples | |
186 | * +--------------------------------------------------------------------------- | |
187 | * | 340- 343 | control bits for previous samples | |
188 | * +--------------------------------------------------------------------------- | |
189 | * | 344- 503 | samples | |
190 | * +--------------------------------------------------------------------------- | |
191 | * | 504- 507 | control bits for previous samples | |
192 | * +--------------------------------------------------------------------------- | |
193 | * | 508- 667 | samples | |
194 | * +--------------------------------------------------------------------------- | |
195 | * | 668- 671 | control bits for previous samples | |
196 | * +--------------------------------------------------------------------------- | |
197 | * | 672- 831 | samples | |
198 | * +--------------------------------------------------------------------------- | |
199 | * | 832- 835 | control bits for previous samples | |
200 | * +--------------------------------------------------------------------------- | |
201 | * | 836- 995 | samples | |
202 | * +--------------------------------------------------------------------------- | |
203 | * | 996- 999 | control bits for previous samples | |
204 | * +--------------------------------------------------------------------------- | |
205 | * | 1000-1023 | garbage | |
206 | * +--------------------------------------------------------------------------- | |
207 | * | |
208 | * Bytes 4 - 7 could have some meaning? | |
209 | * | |
210 | * Control bits for previous samples is 32-bit field, containing 16 x 2-bit | |
211 | * numbers. This results one 2-bit number for 8 samples. It is likely used for | |
212 | * for bit shifting sample by given bits, increasing actual sampling resolution. | |
213 | * Number 2 (0b10) was never seen. | |
214 | * | |
215 | * 6 * 16 * 2 * 4 = 768 samples. 768 * 4 = 3072 bytes | |
8591f708 AP |
216 | * |
217 | * | |
3d0c8fa3 AP |
218 | * +=========================================================================== |
219 | * | 00-1023 | USB packet type '336' | |
220 | * +=========================================================================== | |
221 | * | 00- 03 | sequence number of first sample in that USB packet | |
222 | * +--------------------------------------------------------------------------- | |
223 | * | 04- 15 | garbage | |
224 | * +--------------------------------------------------------------------------- | |
225 | * | 16-1023 | samples | |
226 | * +--------------------------------------------------------------------------- | |
227 | * signed 12-bit sample | |
8591f708 AP |
228 | * |
229 | * | |
3d0c8fa3 AP |
230 | * +=========================================================================== |
231 | * | 00-1023 | USB packet type '252' | |
232 | * +=========================================================================== | |
233 | * | 00- 03 | sequence number of first sample in that USB packet | |
234 | * +--------------------------------------------------------------------------- | |
235 | * | 04- 15 | garbage | |
236 | * +--------------------------------------------------------------------------- | |
237 | * | 16-1023 | samples | |
238 | * +--------------------------------------------------------------------------- | |
239 | * signed 14-bit sample | |
554cbfbe | 240 | */ |
3d0c8fa3 | 241 | |
f7e5a655 AP |
242 | static int msi2500_convert_stream(struct msi2500_dev *dev, u8 *dst, u8 *src, |
243 | unsigned int src_len) | |
554cbfbe | 244 | { |
8591f708 AP |
245 | unsigned int i, j, transactions, dst_len = 0; |
246 | u32 sample[3]; | |
554cbfbe | 247 | |
8591f708 AP |
248 | /* There could be 1-3 1024 byte transactions per packet */ |
249 | transactions = src_len / 1024; | |
554cbfbe | 250 | |
8591f708 AP |
251 | for (i = 0; i < transactions; i++) { |
252 | sample[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | | |
253 | src[0] << 0; | |
f7e5a655 AP |
254 | if (i == 0 && dev->next_sample != sample[0]) { |
255 | dev_dbg_ratelimited(dev->dev, | |
256 | "%d samples lost, %d %08x:%08x\n", | |
257 | sample[0] - dev->next_sample, | |
258 | src_len, dev->next_sample, | |
259 | sample[0]); | |
554cbfbe AP |
260 | } |
261 | ||
262 | /* | |
263 | * Dump all unknown 'garbage' data - maybe we will discover | |
264 | * someday if there is something rational... | |
265 | */ | |
f7e5a655 | 266 | dev_dbg_ratelimited(dev->dev, "%*ph\n", 12, &src[4]); |
554cbfbe | 267 | |
8591f708 | 268 | src += 16; /* skip header */ |
554cbfbe | 269 | |
f7e5a655 | 270 | switch (dev->pixelformat) { |
8591f708 AP |
271 | case V4L2_SDR_FMT_CU8: /* 504 x IQ samples */ |
272 | { | |
f7e5a655 AP |
273 | s8 *s8src = (s8 *)src; |
274 | u8 *u8dst = (u8 *)dst; | |
554cbfbe | 275 | |
8591f708 AP |
276 | for (j = 0; j < 1008; j++) |
277 | *u8dst++ = *s8src++ + 128; | |
3d0c8fa3 | 278 | |
8591f708 AP |
279 | src += 1008; |
280 | dst += 1008; | |
281 | dst_len += 1008; | |
f7e5a655 | 282 | dev->next_sample = sample[i] + 504; |
8591f708 | 283 | break; |
554cbfbe | 284 | } |
8591f708 AP |
285 | case V4L2_SDR_FMT_CU16LE: /* 252 x IQ samples */ |
286 | { | |
f7e5a655 AP |
287 | s16 *s16src = (s16 *)src; |
288 | u16 *u16dst = (u16 *)dst; | |
8591f708 AP |
289 | struct {signed int x:14; } se; /* sign extension */ |
290 | unsigned int utmp; | |
291 | ||
292 | for (j = 0; j < 1008; j += 2) { | |
293 | /* sign extension from 14-bit to signed int */ | |
294 | se.x = *s16src++; | |
295 | /* from signed int to unsigned int */ | |
296 | utmp = se.x + 8192; | |
297 | /* from 14-bit to 16-bit */ | |
298 | *u16dst++ = utmp << 2 | utmp >> 12; | |
299 | } | |
3d0c8fa3 | 300 | |
8591f708 AP |
301 | src += 1008; |
302 | dst += 1008; | |
303 | dst_len += 1008; | |
f7e5a655 | 304 | dev->next_sample = sample[i] + 252; |
8591f708 AP |
305 | break; |
306 | } | |
307 | case MSI2500_PIX_FMT_SDR_MSI2500_384: /* 384 x IQ samples */ | |
308 | /* Dump unknown 'garbage' data */ | |
f7e5a655 | 309 | dev_dbg_ratelimited(dev->dev, "%*ph\n", 24, &src[1000]); |
8591f708 AP |
310 | memcpy(dst, src, 984); |
311 | src += 984 + 24; | |
312 | dst += 984; | |
313 | dst_len += 984; | |
f7e5a655 | 314 | dev->next_sample = sample[i] + 384; |
8591f708 AP |
315 | break; |
316 | case V4L2_SDR_FMT_CS8: /* 504 x IQ samples */ | |
317 | memcpy(dst, src, 1008); | |
318 | src += 1008; | |
319 | dst += 1008; | |
320 | dst_len += 1008; | |
f7e5a655 | 321 | dev->next_sample = sample[i] + 504; |
8591f708 AP |
322 | break; |
323 | case MSI2500_PIX_FMT_SDR_S12: /* 336 x IQ samples */ | |
324 | memcpy(dst, src, 1008); | |
325 | src += 1008; | |
326 | dst += 1008; | |
327 | dst_len += 1008; | |
f7e5a655 | 328 | dev->next_sample = sample[i] + 336; |
8591f708 AP |
329 | break; |
330 | case V4L2_SDR_FMT_CS14LE: /* 252 x IQ samples */ | |
331 | memcpy(dst, src, 1008); | |
332 | src += 1008; | |
333 | dst += 1008; | |
334 | dst_len += 1008; | |
f7e5a655 | 335 | dev->next_sample = sample[i] + 252; |
8591f708 AP |
336 | break; |
337 | default: | |
338 | break; | |
339 | } | |
554cbfbe AP |
340 | } |
341 | ||
8591f708 | 342 | /* calculate sample rate and output it in 10 seconds intervals */ |
f7e5a655 | 343 | if (unlikely(time_is_before_jiffies(dev->jiffies_next))) { |
8591f708 AP |
344 | #define MSECS 10000UL |
345 | unsigned int msecs = jiffies_to_msecs(jiffies - | |
f7e5a655 AP |
346 | dev->jiffies_next + msecs_to_jiffies(MSECS)); |
347 | unsigned int samples = dev->next_sample - dev->sample; | |
348 | ||
349 | dev->jiffies_next = jiffies + msecs_to_jiffies(MSECS); | |
350 | dev->sample = dev->next_sample; | |
351 | dev_dbg(dev->dev, "size=%u samples=%u msecs=%u sample rate=%lu\n", | |
352 | src_len, samples, msecs, | |
353 | samples * 1000UL / msecs); | |
554cbfbe AP |
354 | } |
355 | ||
554cbfbe AP |
356 | return dst_len; |
357 | } | |
358 | ||
977e444f AP |
359 | /* |
360 | * This gets called for the Isochronous pipe (stream). This is done in interrupt | |
361 | * time, so it has to be fast, not crash, and not stall. Neat. | |
362 | */ | |
06ce32cb | 363 | static void msi2500_isoc_handler(struct urb *urb) |
977e444f | 364 | { |
f7e5a655 | 365 | struct msi2500_dev *dev = (struct msi2500_dev *)urb->context; |
977e444f AP |
366 | int i, flen, fstatus; |
367 | unsigned char *iso_buf = NULL; | |
06ce32cb | 368 | struct msi2500_frame_buf *fbuf; |
977e444f | 369 | |
f7e5a655 AP |
370 | if (unlikely(urb->status == -ENOENT || |
371 | urb->status == -ECONNRESET || | |
372 | urb->status == -ESHUTDOWN)) { | |
b436e26e | 373 | dev_dbg(dev->dev, "URB (%p) unlinked %ssynchronously\n", |
f7e5a655 | 374 | urb, urb->status == -ENOENT ? "" : "a"); |
977e444f AP |
375 | return; |
376 | } | |
377 | ||
3d0c8fa3 | 378 | if (unlikely(urb->status != 0)) { |
f7e5a655 | 379 | dev_dbg(dev->dev, "called with status %d\n", urb->status); |
977e444f | 380 | /* Give up after a number of contiguous errors */ |
f7e5a655 AP |
381 | if (++dev->isoc_errors > MAX_ISOC_ERRORS) |
382 | dev_dbg(dev->dev, "Too many ISOC errors, bailing out\n"); | |
977e444f AP |
383 | goto handler_end; |
384 | } else { | |
385 | /* Reset ISOC error counter. We did get here, after all. */ | |
f7e5a655 | 386 | dev->isoc_errors = 0; |
977e444f AP |
387 | } |
388 | ||
389 | /* Compact data */ | |
390 | for (i = 0; i < urb->number_of_packets; i++) { | |
554cbfbe AP |
391 | void *ptr; |
392 | ||
977e444f AP |
393 | /* Check frame error */ |
394 | fstatus = urb->iso_frame_desc[i].status; | |
3d0c8fa3 | 395 | if (unlikely(fstatus)) { |
f7e5a655 AP |
396 | dev_dbg_ratelimited(dev->dev, |
397 | "frame=%d/%d has error %d skipping\n", | |
398 | i, urb->number_of_packets, fstatus); | |
3d0c8fa3 | 399 | continue; |
977e444f AP |
400 | } |
401 | ||
402 | /* Check if that frame contains data */ | |
403 | flen = urb->iso_frame_desc[i].actual_length; | |
3d0c8fa3 AP |
404 | if (unlikely(flen == 0)) |
405 | continue; | |
977e444f AP |
406 | |
407 | iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
408 | ||
409 | /* Get free framebuffer */ | |
f7e5a655 | 410 | fbuf = msi2500_get_next_fill_buf(dev); |
3d0c8fa3 | 411 | if (unlikely(fbuf == NULL)) { |
f7e5a655 AP |
412 | dev->vb_full++; |
413 | dev_dbg_ratelimited(dev->dev, | |
414 | "videobuf is full, %d packets dropped\n", | |
415 | dev->vb_full); | |
3d0c8fa3 | 416 | continue; |
977e444f AP |
417 | } |
418 | ||
419 | /* fill framebuffer */ | |
2d700715 | 420 | ptr = vb2_plane_vaddr(&fbuf->vb.vb2_buf, 0); |
f7e5a655 | 421 | flen = msi2500_convert_stream(dev, ptr, iso_buf, flen); |
2d700715 JS |
422 | vb2_set_plane_payload(&fbuf->vb.vb2_buf, 0, flen); |
423 | vb2_buffer_done(&fbuf->vb.vb2_buf, VB2_BUF_STATE_DONE); | |
977e444f AP |
424 | } |
425 | ||
426 | handler_end: | |
427 | i = usb_submit_urb(urb, GFP_ATOMIC); | |
3d0c8fa3 | 428 | if (unlikely(i != 0)) |
f7e5a655 | 429 | dev_dbg(dev->dev, "Error (%d) re-submitting urb\n", i); |
977e444f AP |
430 | } |
431 | ||
f7e5a655 | 432 | static void msi2500_iso_stop(struct msi2500_dev *dev) |
977e444f AP |
433 | { |
434 | int i; | |
c08de62f | 435 | |
f7e5a655 | 436 | dev_dbg(dev->dev, "\n"); |
977e444f AP |
437 | |
438 | /* Unlinking ISOC buffers one by one */ | |
439 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
f7e5a655 AP |
440 | if (dev->urbs[i]) { |
441 | dev_dbg(dev->dev, "Unlinking URB %p\n", dev->urbs[i]); | |
442 | usb_kill_urb(dev->urbs[i]); | |
977e444f AP |
443 | } |
444 | } | |
445 | } | |
446 | ||
f7e5a655 | 447 | static void msi2500_iso_free(struct msi2500_dev *dev) |
977e444f AP |
448 | { |
449 | int i; | |
c08de62f | 450 | |
f7e5a655 | 451 | dev_dbg(dev->dev, "\n"); |
977e444f AP |
452 | |
453 | /* Freeing ISOC buffers one by one */ | |
454 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
f7e5a655 AP |
455 | if (dev->urbs[i]) { |
456 | dev_dbg(dev->dev, "Freeing URB\n"); | |
457 | if (dev->urbs[i]->transfer_buffer) { | |
458 | usb_free_coherent(dev->udev, | |
459 | dev->urbs[i]->transfer_buffer_length, | |
460 | dev->urbs[i]->transfer_buffer, | |
461 | dev->urbs[i]->transfer_dma); | |
977e444f | 462 | } |
f7e5a655 AP |
463 | usb_free_urb(dev->urbs[i]); |
464 | dev->urbs[i] = NULL; | |
977e444f AP |
465 | } |
466 | } | |
467 | } | |
468 | ||
469 | /* Both v4l2_lock and vb_queue_lock should be locked when calling this */ | |
f7e5a655 | 470 | static void msi2500_isoc_cleanup(struct msi2500_dev *dev) |
977e444f | 471 | { |
f7e5a655 | 472 | dev_dbg(dev->dev, "\n"); |
977e444f | 473 | |
f7e5a655 AP |
474 | msi2500_iso_stop(dev); |
475 | msi2500_iso_free(dev); | |
977e444f AP |
476 | } |
477 | ||
478 | /* Both v4l2_lock and vb_queue_lock should be locked when calling this */ | |
f7e5a655 | 479 | static int msi2500_isoc_init(struct msi2500_dev *dev) |
977e444f | 480 | { |
977e444f AP |
481 | struct urb *urb; |
482 | int i, j, ret; | |
c08de62f | 483 | |
f7e5a655 | 484 | dev_dbg(dev->dev, "\n"); |
977e444f | 485 | |
f7e5a655 | 486 | dev->isoc_errors = 0; |
977e444f | 487 | |
f7e5a655 | 488 | ret = usb_set_interface(dev->udev, 0, 1); |
3d0c8fa3 | 489 | if (ret) |
977e444f AP |
490 | return ret; |
491 | ||
492 | /* Allocate and init Isochronuous urbs */ | |
493 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
494 | urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); | |
495 | if (urb == NULL) { | |
f7e5a655 | 496 | msi2500_isoc_cleanup(dev); |
977e444f AP |
497 | return -ENOMEM; |
498 | } | |
f7e5a655 AP |
499 | dev->urbs[i] = urb; |
500 | dev_dbg(dev->dev, "Allocated URB at 0x%p\n", urb); | |
977e444f AP |
501 | |
502 | urb->interval = 1; | |
f7e5a655 AP |
503 | urb->dev = dev->udev; |
504 | urb->pipe = usb_rcvisocpipe(dev->udev, 0x81); | |
977e444f | 505 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
f7e5a655 | 506 | urb->transfer_buffer = usb_alloc_coherent(dev->udev, |
de3f2e2e | 507 | ISO_BUFFER_SIZE, |
977e444f AP |
508 | GFP_KERNEL, &urb->transfer_dma); |
509 | if (urb->transfer_buffer == NULL) { | |
f7e5a655 AP |
510 | dev_err(dev->dev, |
511 | "Failed to allocate urb buffer %d\n", i); | |
512 | msi2500_isoc_cleanup(dev); | |
977e444f AP |
513 | return -ENOMEM; |
514 | } | |
515 | urb->transfer_buffer_length = ISO_BUFFER_SIZE; | |
06ce32cb | 516 | urb->complete = msi2500_isoc_handler; |
f7e5a655 | 517 | urb->context = dev; |
977e444f AP |
518 | urb->start_frame = 0; |
519 | urb->number_of_packets = ISO_FRAMES_PER_DESC; | |
520 | for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { | |
521 | urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; | |
522 | urb->iso_frame_desc[j].length = ISO_MAX_FRAME_SIZE; | |
523 | } | |
524 | } | |
525 | ||
526 | /* link */ | |
527 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
f7e5a655 | 528 | ret = usb_submit_urb(dev->urbs[i], GFP_KERNEL); |
977e444f | 529 | if (ret) { |
f7e5a655 AP |
530 | dev_err(dev->dev, |
531 | "usb_submit_urb %d failed with error %d\n", | |
532 | i, ret); | |
533 | msi2500_isoc_cleanup(dev); | |
977e444f AP |
534 | return ret; |
535 | } | |
f7e5a655 | 536 | dev_dbg(dev->dev, "URB 0x%p submitted.\n", dev->urbs[i]); |
977e444f AP |
537 | } |
538 | ||
539 | /* All is done... */ | |
540 | return 0; | |
541 | } | |
542 | ||
543 | /* Must be called with vb_queue_lock hold */ | |
f7e5a655 | 544 | static void msi2500_cleanup_queued_bufs(struct msi2500_dev *dev) |
977e444f | 545 | { |
b63ab6b0 | 546 | unsigned long flags; |
c08de62f | 547 | |
f7e5a655 | 548 | dev_dbg(dev->dev, "\n"); |
977e444f | 549 | |
f7e5a655 AP |
550 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
551 | while (!list_empty(&dev->queued_bufs)) { | |
06ce32cb | 552 | struct msi2500_frame_buf *buf; |
977e444f | 553 | |
f7e5a655 AP |
554 | buf = list_entry(dev->queued_bufs.next, |
555 | struct msi2500_frame_buf, list); | |
977e444f | 556 | list_del(&buf->list); |
2d700715 | 557 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
977e444f | 558 | } |
f7e5a655 | 559 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); |
977e444f AP |
560 | } |
561 | ||
562 | /* The user yanked out the cable... */ | |
06ce32cb | 563 | static void msi2500_disconnect(struct usb_interface *intf) |
977e444f AP |
564 | { |
565 | struct v4l2_device *v = usb_get_intfdata(intf); | |
f7e5a655 AP |
566 | struct msi2500_dev *dev = |
567 | container_of(v, struct msi2500_dev, v4l2_dev); | |
c08de62f | 568 | |
f7e5a655 | 569 | dev_dbg(dev->dev, "\n"); |
977e444f | 570 | |
f7e5a655 AP |
571 | mutex_lock(&dev->vb_queue_lock); |
572 | mutex_lock(&dev->v4l2_lock); | |
977e444f | 573 | /* No need to keep the urbs around after disconnection */ |
f7e5a655 AP |
574 | dev->udev = NULL; |
575 | v4l2_device_disconnect(&dev->v4l2_dev); | |
576 | video_unregister_device(&dev->vdev); | |
577 | spi_unregister_master(dev->master); | |
578 | mutex_unlock(&dev->v4l2_lock); | |
579 | mutex_unlock(&dev->vb_queue_lock); | |
580 | ||
581 | v4l2_device_put(&dev->v4l2_dev); | |
977e444f AP |
582 | } |
583 | ||
06ce32cb | 584 | static int msi2500_querycap(struct file *file, void *fh, |
f7e5a655 | 585 | struct v4l2_capability *cap) |
977e444f | 586 | { |
f7e5a655 | 587 | struct msi2500_dev *dev = video_drvdata(file); |
c08de62f | 588 | |
f7e5a655 | 589 | dev_dbg(dev->dev, "\n"); |
977e444f | 590 | |
c0decac1 MCC |
591 | strscpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); |
592 | strscpy(cap->card, dev->vdev.name, sizeof(cap->card)); | |
f7e5a655 | 593 | usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); |
977e444f AP |
594 | return 0; |
595 | } | |
596 | ||
977e444f | 597 | /* Videobuf2 operations */ |
06ce32cb | 598 | static int msi2500_queue_setup(struct vb2_queue *vq, |
f7e5a655 AP |
599 | unsigned int *nbuffers, |
600 | unsigned int *nplanes, unsigned int sizes[], | |
36c0f8b3 | 601 | struct device *alloc_devs[]) |
977e444f | 602 | { |
f7e5a655 | 603 | struct msi2500_dev *dev = vb2_get_drv_priv(vq); |
c08de62f | 604 | |
f7e5a655 | 605 | dev_dbg(dev->dev, "nbuffers=%d\n", *nbuffers); |
977e444f AP |
606 | |
607 | /* Absolute min and max number of buffers available for mmap() */ | |
d287e4e3 | 608 | *nbuffers = clamp_t(unsigned int, *nbuffers, 8, 32); |
977e444f | 609 | *nplanes = 1; |
f7e5a655 AP |
610 | sizes[0] = PAGE_ALIGN(dev->buffersize); |
611 | dev_dbg(dev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); | |
977e444f AP |
612 | return 0; |
613 | } | |
614 | ||
06ce32cb | 615 | static void msi2500_buf_queue(struct vb2_buffer *vb) |
977e444f | 616 | { |
2d700715 | 617 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
f7e5a655 | 618 | struct msi2500_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
2d700715 | 619 | struct msi2500_frame_buf *buf = container_of(vbuf, |
f7e5a655 AP |
620 | struct msi2500_frame_buf, |
621 | vb); | |
b63ab6b0 | 622 | unsigned long flags; |
977e444f AP |
623 | |
624 | /* Check the device has not disconnected between prep and queuing */ | |
f7e5a655 | 625 | if (unlikely(!dev->udev)) { |
2d700715 | 626 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
977e444f AP |
627 | return; |
628 | } | |
629 | ||
f7e5a655 AP |
630 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
631 | list_add_tail(&buf->list, &dev->queued_bufs); | |
632 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); | |
977e444f AP |
633 | } |
634 | ||
635 | #define CMD_WREG 0x41 | |
636 | #define CMD_START_STREAMING 0x43 | |
637 | #define CMD_STOP_STREAMING 0x45 | |
f7e5a655 | 638 | #define CMD_READ_UNKNOWN 0x48 |
977e444f | 639 | |
100b7931 | 640 | #define msi2500_dbg_usb_control_msg(_dev, _r, _t, _v, _i, _b, _l) { \ |
c08de62f AP |
641 | char *_direction; \ |
642 | if (_t & USB_DIR_IN) \ | |
643 | _direction = "<<<"; \ | |
977e444f | 644 | else \ |
c08de62f | 645 | _direction = ">>>"; \ |
100b7931 AP |
646 | dev_dbg(_dev, "%02x %02x %02x %02x %02x %02x %02x %02x %s %*ph\n", \ |
647 | _t, _r, _v & 0xff, _v >> 8, _i & 0xff, _i >> 8, \ | |
648 | _l & 0xff, _l >> 8, _direction, _l, _b); \ | |
977e444f AP |
649 | } |
650 | ||
f7e5a655 | 651 | static int msi2500_ctrl_msg(struct msi2500_dev *dev, u8 cmd, u32 data) |
977e444f AP |
652 | { |
653 | int ret; | |
654 | u8 request = cmd; | |
655 | u8 requesttype = USB_DIR_OUT | USB_TYPE_VENDOR; | |
656 | u16 value = (data >> 0) & 0xffff; | |
657 | u16 index = (data >> 16) & 0xffff; | |
658 | ||
f7e5a655 AP |
659 | msi2500_dbg_usb_control_msg(dev->dev, request, requesttype, |
660 | value, index, NULL, 0); | |
661 | ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), request, | |
662 | requesttype, value, index, NULL, 0, 2000); | |
977e444f | 663 | if (ret) |
f7e5a655 AP |
664 | dev_err(dev->dev, "failed %d, cmd %02x, data %04x\n", |
665 | ret, cmd, data); | |
977e444f AP |
666 | |
667 | return ret; | |
100b7931 | 668 | } |
977e444f | 669 | |
f7e5a655 | 670 | static int msi2500_set_usb_adc(struct msi2500_dev *dev) |
977e444f | 671 | { |
faf22b13 AP |
672 | int ret; |
673 | unsigned int f_vco, f_sr, div_n, k, k_cw, div_out; | |
554cbfbe | 674 | u32 reg3, reg4, reg7; |
2e68f841 AP |
675 | struct v4l2_ctrl *bandwidth_auto; |
676 | struct v4l2_ctrl *bandwidth; | |
554cbfbe | 677 | |
f7e5a655 | 678 | f_sr = dev->f_adc; |
554cbfbe | 679 | |
2e68f841 | 680 | /* set tuner, subdev, filters according to sampling rate */ |
f7e5a655 | 681 | bandwidth_auto = v4l2_ctrl_find(&dev->hdl, |
c08de62f | 682 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); |
2e68f841 | 683 | if (v4l2_ctrl_g_ctrl(bandwidth_auto)) { |
f7e5a655 | 684 | bandwidth = v4l2_ctrl_find(&dev->hdl, |
c08de62f | 685 | V4L2_CID_RF_TUNER_BANDWIDTH); |
f7e5a655 | 686 | v4l2_ctrl_s_ctrl(bandwidth, dev->f_adc); |
2e68f841 | 687 | } |
554cbfbe AP |
688 | |
689 | /* select stream format */ | |
f7e5a655 | 690 | switch (dev->pixelformat) { |
3d0c8fa3 | 691 | case V4L2_SDR_FMT_CU8: |
8591f708 | 692 | reg7 = 0x000c9407; /* 504 */ |
3d0c8fa3 AP |
693 | break; |
694 | case V4L2_SDR_FMT_CU16LE: | |
8591f708 | 695 | reg7 = 0x00009407; /* 252 */ |
3d0c8fa3 | 696 | break; |
3912eb6d | 697 | case V4L2_SDR_FMT_CS8: |
8591f708 | 698 | reg7 = 0x000c9407; /* 504 */ |
3d0c8fa3 | 699 | break; |
c08de62f | 700 | case MSI2500_PIX_FMT_SDR_MSI2500_384: |
8591f708 | 701 | reg7 = 0x0000a507; /* 384 */ |
3d0c8fa3 | 702 | break; |
c08de62f | 703 | case MSI2500_PIX_FMT_SDR_S12: |
8591f708 | 704 | reg7 = 0x00008507; /* 336 */ |
3d0c8fa3 | 705 | break; |
3912eb6d | 706 | case V4L2_SDR_FMT_CS14LE: |
8591f708 | 707 | reg7 = 0x00009407; /* 252 */ |
3d0c8fa3 AP |
708 | break; |
709 | default: | |
8591f708 | 710 | reg7 = 0x000c9407; /* 504 */ |
3d0c8fa3 | 711 | break; |
554cbfbe AP |
712 | } |
713 | ||
faf22b13 AP |
714 | /* |
715 | * Fractional-N synthesizer | |
716 | * | |
717 | * +----------------------------------------+ | |
718 | * v | | |
719 | * Fref +----+ +-------+ +-----+ +------+ +---+ | |
720 | * ------> | PD | --> | VCO | --> | /2 | ------> | /N.F | <-- | K | | |
721 | * +----+ +-------+ +-----+ +------+ +---+ | |
722 | * | | |
723 | * | | |
724 | * v | |
725 | * +-------+ +-----+ Fout | |
726 | * | /Rout | --> | /12 | ------> | |
727 | * +-------+ +-----+ | |
728 | */ | |
977e444f | 729 | /* |
b1520857 | 730 | * Synthesizer config is just a educated guess... |
977e444f | 731 | * |
977e444f | 732 | * [7:0] 0x03, register address |
3d0c8fa3 AP |
733 | * [8] 1, power control |
734 | * [9] ?, power control | |
977e444f AP |
735 | * [12:10] output divider |
736 | * [13] 0 ? | |
737 | * [14] 0 ? | |
22ca680e | 738 | * [15] fractional MSB, bit 20 |
977e444f AP |
739 | * [16:19] N |
740 | * [23:20] ? | |
741 | * [24:31] 0x01 | |
742 | * | |
743 | * output divider | |
744 | * val div | |
745 | * 0 - (invalid) | |
b1520857 AP |
746 | * 1 4 |
747 | * 2 6 | |
748 | * 3 8 | |
749 | * 4 10 | |
750 | * 5 12 | |
751 | * 6 14 | |
752 | * 7 16 | |
753 | * | |
754 | * VCO 202000000 - 720000000++ | |
977e444f | 755 | */ |
faf22b13 AP |
756 | |
757 | #define F_REF 24000000 | |
758 | #define DIV_PRE_N 2 | |
759 | #define DIV_LO_OUT 12 | |
c5a431d0 | 760 | reg3 = 0x01000303; |
22ca680e | 761 | reg4 = 0x00000004; |
977e444f | 762 | |
faf22b13 | 763 | /* XXX: Filters? AGC? VCO band? */ |
c5a431d0 AP |
764 | if (f_sr < 6000000) |
765 | reg3 |= 0x1 << 20; | |
766 | else if (f_sr < 7000000) | |
767 | reg3 |= 0x5 << 20; | |
768 | else if (f_sr < 8500000) | |
769 | reg3 |= 0x9 << 20; | |
770 | else | |
771 | reg3 |= 0xd << 20; | |
772 | ||
faf22b13 AP |
773 | for (div_out = 4; div_out < 16; div_out += 2) { |
774 | f_vco = f_sr * div_out * DIV_LO_OUT; | |
f7e5a655 | 775 | dev_dbg(dev->dev, "div_out=%u f_vco=%u\n", div_out, f_vco); |
b1520857 | 776 | if (f_vco >= 202000000) |
977e444f AP |
777 | break; |
778 | } | |
779 | ||
faf22b13 AP |
780 | /* Calculate PLL integer and fractional control word. */ |
781 | div_n = div_u64_rem(f_vco, DIV_PRE_N * F_REF, &k); | |
782 | k_cw = div_u64((u64) k * 0x200000, DIV_PRE_N * F_REF); | |
977e444f | 783 | |
b1520857 | 784 | reg3 |= div_n << 16; |
faf22b13 AP |
785 | reg3 |= (div_out / 2 - 1) << 10; |
786 | reg3 |= ((k_cw >> 20) & 0x000001) << 15; /* [20] */ | |
787 | reg4 |= ((k_cw >> 0) & 0x0fffff) << 8; /* [19:0] */ | |
977e444f | 788 | |
f7e5a655 | 789 | dev_dbg(dev->dev, |
faf22b13 AP |
790 | "f_sr=%u f_vco=%u div_n=%u k=%u div_out=%u reg3=%08x reg4=%08x\n", |
791 | f_sr, f_vco, div_n, k, div_out, reg3, reg4); | |
977e444f | 792 | |
f7e5a655 | 793 | ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00608008); |
977e444f AP |
794 | if (ret) |
795 | goto err; | |
796 | ||
f7e5a655 | 797 | ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00000c05); |
977e444f AP |
798 | if (ret) |
799 | goto err; | |
800 | ||
f7e5a655 | 801 | ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00020000); |
977e444f AP |
802 | if (ret) |
803 | goto err; | |
804 | ||
f7e5a655 | 805 | ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00480102); |
977e444f AP |
806 | if (ret) |
807 | goto err; | |
808 | ||
f7e5a655 | 809 | ret = msi2500_ctrl_msg(dev, CMD_WREG, 0x00f38008); |
977e444f AP |
810 | if (ret) |
811 | goto err; | |
812 | ||
f7e5a655 | 813 | ret = msi2500_ctrl_msg(dev, CMD_WREG, reg7); |
977e444f AP |
814 | if (ret) |
815 | goto err; | |
816 | ||
f7e5a655 | 817 | ret = msi2500_ctrl_msg(dev, CMD_WREG, reg4); |
977e444f AP |
818 | if (ret) |
819 | goto err; | |
820 | ||
f7e5a655 | 821 | ret = msi2500_ctrl_msg(dev, CMD_WREG, reg3); |
977e444f AP |
822 | err: |
823 | return ret; | |
100b7931 | 824 | } |
977e444f | 825 | |
06ce32cb | 826 | static int msi2500_start_streaming(struct vb2_queue *vq, unsigned int count) |
977e444f | 827 | { |
f7e5a655 | 828 | struct msi2500_dev *dev = vb2_get_drv_priv(vq); |
977e444f | 829 | int ret; |
c08de62f | 830 | |
f7e5a655 | 831 | dev_dbg(dev->dev, "\n"); |
977e444f | 832 | |
f7e5a655 | 833 | if (!dev->udev) |
977e444f AP |
834 | return -ENODEV; |
835 | ||
f7e5a655 | 836 | if (mutex_lock_interruptible(&dev->v4l2_lock)) |
977e444f AP |
837 | return -ERESTARTSYS; |
838 | ||
2e68f841 | 839 | /* wake-up tuner */ |
f7e5a655 | 840 | v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 1); |
2e68f841 | 841 | |
f7e5a655 | 842 | ret = msi2500_set_usb_adc(dev); |
977e444f | 843 | |
f7e5a655 | 844 | ret = msi2500_isoc_init(dev); |
977e444f | 845 | if (ret) |
f7e5a655 | 846 | msi2500_cleanup_queued_bufs(dev); |
977e444f | 847 | |
f7e5a655 | 848 | ret = msi2500_ctrl_msg(dev, CMD_START_STREAMING, 0); |
977e444f | 849 | |
f7e5a655 | 850 | mutex_unlock(&dev->v4l2_lock); |
977e444f AP |
851 | |
852 | return ret; | |
853 | } | |
854 | ||
06ce32cb | 855 | static void msi2500_stop_streaming(struct vb2_queue *vq) |
977e444f | 856 | { |
f7e5a655 | 857 | struct msi2500_dev *dev = vb2_get_drv_priv(vq); |
e37559b2 | 858 | |
f7e5a655 | 859 | dev_dbg(dev->dev, "\n"); |
977e444f | 860 | |
f7e5a655 | 861 | mutex_lock(&dev->v4l2_lock); |
977e444f | 862 | |
f7e5a655 AP |
863 | if (dev->udev) |
864 | msi2500_isoc_cleanup(dev); | |
977e444f | 865 | |
f7e5a655 | 866 | msi2500_cleanup_queued_bufs(dev); |
d0fadf40 AP |
867 | |
868 | /* according to tests, at least 700us delay is required */ | |
869 | msleep(20); | |
3ec7fdc5 | 870 | if (dev->udev && !msi2500_ctrl_msg(dev, CMD_STOP_STREAMING, 0)) { |
e37559b2 | 871 | /* sleep USB IF / ADC */ |
f7e5a655 | 872 | msi2500_ctrl_msg(dev, CMD_WREG, 0x01000003); |
e37559b2 | 873 | } |
3d0c8fa3 AP |
874 | |
875 | /* sleep tuner */ | |
f7e5a655 | 876 | v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 0); |
3d0c8fa3 | 877 | |
f7e5a655 | 878 | mutex_unlock(&dev->v4l2_lock); |
977e444f AP |
879 | } |
880 | ||
1bc17717 | 881 | static const struct vb2_ops msi2500_vb2_ops = { |
06ce32cb AP |
882 | .queue_setup = msi2500_queue_setup, |
883 | .buf_queue = msi2500_buf_queue, | |
884 | .start_streaming = msi2500_start_streaming, | |
885 | .stop_streaming = msi2500_stop_streaming, | |
977e444f AP |
886 | .wait_prepare = vb2_ops_wait_prepare, |
887 | .wait_finish = vb2_ops_wait_finish, | |
888 | }; | |
889 | ||
06ce32cb | 890 | static int msi2500_enum_fmt_sdr_cap(struct file *file, void *priv, |
f7e5a655 | 891 | struct v4l2_fmtdesc *f) |
977e444f | 892 | { |
f7e5a655 | 893 | struct msi2500_dev *dev = video_drvdata(file); |
c08de62f | 894 | |
f7e5a655 | 895 | dev_dbg(dev->dev, "index=%d\n", f->index); |
3d0c8fa3 | 896 | |
f7e5a655 | 897 | if (f->index >= dev->num_formats) |
977e444f AP |
898 | return -EINVAL; |
899 | ||
3d0c8fa3 AP |
900 | f->pixelformat = formats[f->index].pixelformat; |
901 | ||
902 | return 0; | |
903 | } | |
904 | ||
06ce32cb | 905 | static int msi2500_g_fmt_sdr_cap(struct file *file, void *priv, |
f7e5a655 | 906 | struct v4l2_format *f) |
3d0c8fa3 | 907 | { |
f7e5a655 | 908 | struct msi2500_dev *dev = video_drvdata(file); |
c08de62f | 909 | |
f7e5a655 AP |
910 | dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", |
911 | (char *)&dev->pixelformat); | |
3d0c8fa3 | 912 | |
f7e5a655 AP |
913 | f->fmt.sdr.pixelformat = dev->pixelformat; |
914 | f->fmt.sdr.buffersize = dev->buffersize; | |
977e444f AP |
915 | |
916 | return 0; | |
917 | } | |
918 | ||
06ce32cb | 919 | static int msi2500_s_fmt_sdr_cap(struct file *file, void *priv, |
f7e5a655 | 920 | struct v4l2_format *f) |
977e444f | 921 | { |
f7e5a655 AP |
922 | struct msi2500_dev *dev = video_drvdata(file); |
923 | struct vb2_queue *q = &dev->vb_queue; | |
3d0c8fa3 | 924 | int i; |
c08de62f | 925 | |
f7e5a655 AP |
926 | dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", |
927 | (char *)&f->fmt.sdr.pixelformat); | |
3d0c8fa3 AP |
928 | |
929 | if (vb2_is_busy(q)) | |
930 | return -EBUSY; | |
931 | ||
f7e5a655 | 932 | for (i = 0; i < dev->num_formats; i++) { |
3d0c8fa3 | 933 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
f7e5a655 AP |
934 | dev->pixelformat = formats[i].pixelformat; |
935 | dev->buffersize = formats[i].buffersize; | |
a54e0fee | 936 | f->fmt.sdr.buffersize = formats[i].buffersize; |
3d0c8fa3 AP |
937 | return 0; |
938 | } | |
939 | } | |
940 | ||
f7e5a655 AP |
941 | dev->pixelformat = formats[0].pixelformat; |
942 | dev->buffersize = formats[0].buffersize; | |
a54e0fee AP |
943 | f->fmt.sdr.pixelformat = formats[0].pixelformat; |
944 | f->fmt.sdr.buffersize = formats[0].buffersize; | |
977e444f AP |
945 | |
946 | return 0; | |
947 | } | |
948 | ||
06ce32cb | 949 | static int msi2500_try_fmt_sdr_cap(struct file *file, void *priv, |
f7e5a655 | 950 | struct v4l2_format *f) |
977e444f | 951 | { |
f7e5a655 | 952 | struct msi2500_dev *dev = video_drvdata(file); |
3d0c8fa3 | 953 | int i; |
c08de62f | 954 | |
f7e5a655 AP |
955 | dev_dbg(dev->dev, "pixelformat fourcc %4.4s\n", |
956 | (char *)&f->fmt.sdr.pixelformat); | |
3d0c8fa3 | 957 | |
f7e5a655 | 958 | for (i = 0; i < dev->num_formats; i++) { |
a54e0fee AP |
959 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
960 | f->fmt.sdr.buffersize = formats[i].buffersize; | |
3d0c8fa3 | 961 | return 0; |
a54e0fee | 962 | } |
3d0c8fa3 AP |
963 | } |
964 | ||
965 | f->fmt.sdr.pixelformat = formats[0].pixelformat; | |
a54e0fee | 966 | f->fmt.sdr.buffersize = formats[0].buffersize; |
3d0c8fa3 AP |
967 | |
968 | return 0; | |
977e444f AP |
969 | } |
970 | ||
06ce32cb | 971 | static int msi2500_s_tuner(struct file *file, void *priv, |
f7e5a655 | 972 | const struct v4l2_tuner *v) |
977e444f | 973 | { |
f7e5a655 | 974 | struct msi2500_dev *dev = video_drvdata(file); |
2e68f841 | 975 | int ret; |
c08de62f | 976 | |
f7e5a655 | 977 | dev_dbg(dev->dev, "index=%d\n", v->index); |
977e444f | 978 | |
2e68f841 AP |
979 | if (v->index == 0) |
980 | ret = 0; | |
981 | else if (v->index == 1) | |
f7e5a655 | 982 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_tuner, v); |
2e68f841 AP |
983 | else |
984 | ret = -EINVAL; | |
985 | ||
986 | return ret; | |
977e444f AP |
987 | } |
988 | ||
06ce32cb | 989 | static int msi2500_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) |
977e444f | 990 | { |
f7e5a655 | 991 | struct msi2500_dev *dev = video_drvdata(file); |
2e68f841 | 992 | int ret; |
c08de62f | 993 | |
f7e5a655 | 994 | dev_dbg(dev->dev, "index=%d\n", v->index); |
977e444f | 995 | |
3d0c8fa3 | 996 | if (v->index == 0) { |
c0decac1 | 997 | strscpy(v->name, "Mirics MSi2500", sizeof(v->name)); |
3d0c8fa3 AP |
998 | v->type = V4L2_TUNER_ADC; |
999 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
1000 | v->rangelow = 1200000; | |
1001 | v->rangehigh = 15000000; | |
2e68f841 | 1002 | ret = 0; |
3d0c8fa3 | 1003 | } else if (v->index == 1) { |
f7e5a655 | 1004 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_tuner, v); |
3d0c8fa3 | 1005 | } else { |
2e68f841 | 1006 | ret = -EINVAL; |
3d0c8fa3 | 1007 | } |
977e444f | 1008 | |
2e68f841 | 1009 | return ret; |
977e444f | 1010 | } |
977e444f | 1011 | |
06ce32cb | 1012 | static int msi2500_g_frequency(struct file *file, void *priv, |
f7e5a655 | 1013 | struct v4l2_frequency *f) |
3d0c8fa3 | 1014 | { |
f7e5a655 | 1015 | struct msi2500_dev *dev = video_drvdata(file); |
3d0c8fa3 | 1016 | int ret = 0; |
c08de62f | 1017 | |
f7e5a655 | 1018 | dev_dbg(dev->dev, "tuner=%d type=%d\n", f->tuner, f->type); |
3d0c8fa3 | 1019 | |
2e68f841 | 1020 | if (f->tuner == 0) { |
f7e5a655 | 1021 | f->frequency = dev->f_adc; |
2e68f841 AP |
1022 | ret = 0; |
1023 | } else if (f->tuner == 1) { | |
c350912c | 1024 | f->type = V4L2_TUNER_RF; |
f7e5a655 | 1025 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_frequency, f); |
2e68f841 AP |
1026 | } else { |
1027 | ret = -EINVAL; | |
1028 | } | |
3d0c8fa3 AP |
1029 | |
1030 | return ret; | |
977e444f AP |
1031 | } |
1032 | ||
06ce32cb | 1033 | static int msi2500_s_frequency(struct file *file, void *priv, |
f7e5a655 | 1034 | const struct v4l2_frequency *f) |
977e444f | 1035 | { |
f7e5a655 | 1036 | struct msi2500_dev *dev = video_drvdata(file); |
2e68f841 | 1037 | int ret; |
c08de62f | 1038 | |
f7e5a655 AP |
1039 | dev_dbg(dev->dev, "tuner=%d type=%d frequency=%u\n", |
1040 | f->tuner, f->type, f->frequency); | |
3d0c8fa3 AP |
1041 | |
1042 | if (f->tuner == 0) { | |
f7e5a655 AP |
1043 | dev->f_adc = clamp_t(unsigned int, f->frequency, |
1044 | bands[0].rangelow, | |
1045 | bands[0].rangehigh); | |
1046 | dev_dbg(dev->dev, "ADC frequency=%u Hz\n", dev->f_adc); | |
1047 | ret = msi2500_set_usb_adc(dev); | |
3d0c8fa3 | 1048 | } else if (f->tuner == 1) { |
f7e5a655 | 1049 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_frequency, f); |
3d0c8fa3 | 1050 | } else { |
2e68f841 | 1051 | ret = -EINVAL; |
3d0c8fa3 | 1052 | } |
977e444f | 1053 | |
3d0c8fa3 AP |
1054 | return ret; |
1055 | } | |
1056 | ||
06ce32cb | 1057 | static int msi2500_enum_freq_bands(struct file *file, void *priv, |
f7e5a655 | 1058 | struct v4l2_frequency_band *band) |
3d0c8fa3 | 1059 | { |
f7e5a655 | 1060 | struct msi2500_dev *dev = video_drvdata(file); |
2e68f841 | 1061 | int ret; |
c08de62f | 1062 | |
f7e5a655 AP |
1063 | dev_dbg(dev->dev, "tuner=%d type=%d index=%d\n", |
1064 | band->tuner, band->type, band->index); | |
3d0c8fa3 AP |
1065 | |
1066 | if (band->tuner == 0) { | |
2e68f841 AP |
1067 | if (band->index >= ARRAY_SIZE(bands)) { |
1068 | ret = -EINVAL; | |
1069 | } else { | |
1070 | *band = bands[band->index]; | |
1071 | ret = 0; | |
1072 | } | |
3d0c8fa3 | 1073 | } else if (band->tuner == 1) { |
f7e5a655 AP |
1074 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, |
1075 | enum_freq_bands, band); | |
3d0c8fa3 | 1076 | } else { |
2e68f841 | 1077 | ret = -EINVAL; |
3d0c8fa3 AP |
1078 | } |
1079 | ||
2e68f841 | 1080 | return ret; |
977e444f AP |
1081 | } |
1082 | ||
06ce32cb AP |
1083 | static const struct v4l2_ioctl_ops msi2500_ioctl_ops = { |
1084 | .vidioc_querycap = msi2500_querycap, | |
977e444f | 1085 | |
06ce32cb AP |
1086 | .vidioc_enum_fmt_sdr_cap = msi2500_enum_fmt_sdr_cap, |
1087 | .vidioc_g_fmt_sdr_cap = msi2500_g_fmt_sdr_cap, | |
1088 | .vidioc_s_fmt_sdr_cap = msi2500_s_fmt_sdr_cap, | |
1089 | .vidioc_try_fmt_sdr_cap = msi2500_try_fmt_sdr_cap, | |
977e444f AP |
1090 | |
1091 | .vidioc_reqbufs = vb2_ioctl_reqbufs, | |
1092 | .vidioc_create_bufs = vb2_ioctl_create_bufs, | |
1093 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
1094 | .vidioc_querybuf = vb2_ioctl_querybuf, | |
1095 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
1096 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
1097 | ||
1098 | .vidioc_streamon = vb2_ioctl_streamon, | |
1099 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
1100 | ||
06ce32cb AP |
1101 | .vidioc_g_tuner = msi2500_g_tuner, |
1102 | .vidioc_s_tuner = msi2500_s_tuner, | |
3d0c8fa3 | 1103 | |
06ce32cb AP |
1104 | .vidioc_g_frequency = msi2500_g_frequency, |
1105 | .vidioc_s_frequency = msi2500_s_frequency, | |
1106 | .vidioc_enum_freq_bands = msi2500_enum_freq_bands, | |
977e444f AP |
1107 | |
1108 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1109 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
1110 | .vidioc_log_status = v4l2_ctrl_log_status, | |
1111 | }; | |
1112 | ||
06ce32cb | 1113 | static const struct v4l2_file_operations msi2500_fops = { |
977e444f AP |
1114 | .owner = THIS_MODULE, |
1115 | .open = v4l2_fh_open, | |
1116 | .release = vb2_fop_release, | |
1117 | .read = vb2_fop_read, | |
1118 | .poll = vb2_fop_poll, | |
1119 | .mmap = vb2_fop_mmap, | |
1120 | .unlocked_ioctl = video_ioctl2, | |
1121 | }; | |
1122 | ||
86844942 | 1123 | static const struct video_device msi2500_template = { |
977e444f AP |
1124 | .name = "Mirics MSi3101 SDR Dongle", |
1125 | .release = video_device_release_empty, | |
06ce32cb AP |
1126 | .fops = &msi2500_fops, |
1127 | .ioctl_ops = &msi2500_ioctl_ops, | |
977e444f AP |
1128 | }; |
1129 | ||
06ce32cb | 1130 | static void msi2500_video_release(struct v4l2_device *v) |
977e444f | 1131 | { |
f7e5a655 | 1132 | struct msi2500_dev *dev = container_of(v, struct msi2500_dev, v4l2_dev); |
977e444f | 1133 | |
f7e5a655 AP |
1134 | v4l2_ctrl_handler_free(&dev->hdl); |
1135 | v4l2_device_unregister(&dev->v4l2_dev); | |
1136 | kfree(dev); | |
977e444f AP |
1137 | } |
1138 | ||
06ce32cb | 1139 | static int msi2500_transfer_one_message(struct spi_master *master, |
f7e5a655 | 1140 | struct spi_message *m) |
2e68f841 | 1141 | { |
f7e5a655 | 1142 | struct msi2500_dev *dev = spi_master_get_devdata(master); |
2e68f841 AP |
1143 | struct spi_transfer *t; |
1144 | int ret = 0; | |
1145 | u32 data; | |
1146 | ||
1147 | list_for_each_entry(t, &m->transfers, transfer_list) { | |
f7e5a655 | 1148 | dev_dbg(dev->dev, "msg=%*ph\n", t->len, t->tx_buf); |
2e68f841 AP |
1149 | data = 0x09; /* reg 9 is SPI adapter */ |
1150 | data |= ((u8 *)t->tx_buf)[0] << 8; | |
1151 | data |= ((u8 *)t->tx_buf)[1] << 16; | |
1152 | data |= ((u8 *)t->tx_buf)[2] << 24; | |
f7e5a655 | 1153 | ret = msi2500_ctrl_msg(dev, CMD_WREG, data); |
2e68f841 AP |
1154 | } |
1155 | ||
1156 | m->status = ret; | |
1157 | spi_finalize_current_message(master); | |
1158 | return ret; | |
1159 | } | |
1160 | ||
06ce32cb | 1161 | static int msi2500_probe(struct usb_interface *intf, |
f7e5a655 | 1162 | const struct usb_device_id *id) |
977e444f | 1163 | { |
f7e5a655 | 1164 | struct msi2500_dev *dev; |
2e68f841 AP |
1165 | struct v4l2_subdev *sd; |
1166 | struct spi_master *master; | |
977e444f | 1167 | int ret; |
2e68f841 AP |
1168 | static struct spi_board_info board_info = { |
1169 | .modalias = "msi001", | |
1170 | .bus_num = 0, | |
1171 | .chip_select = 0, | |
1172 | .max_speed_hz = 12000000, | |
977e444f AP |
1173 | }; |
1174 | ||
f7e5a655 AP |
1175 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
1176 | if (!dev) { | |
1177 | ret = -ENOMEM; | |
1178 | goto err; | |
977e444f AP |
1179 | } |
1180 | ||
f7e5a655 AP |
1181 | mutex_init(&dev->v4l2_lock); |
1182 | mutex_init(&dev->vb_queue_lock); | |
1183 | spin_lock_init(&dev->queued_bufs_lock); | |
1184 | INIT_LIST_HEAD(&dev->queued_bufs); | |
1185 | dev->dev = &intf->dev; | |
1186 | dev->udev = interface_to_usbdev(intf); | |
1187 | dev->f_adc = bands[0].rangelow; | |
1188 | dev->pixelformat = formats[0].pixelformat; | |
1189 | dev->buffersize = formats[0].buffersize; | |
1190 | dev->num_formats = NUM_FORMATS; | |
ad7b8c02 | 1191 | if (!msi2500_emulated_fmt) |
f7e5a655 | 1192 | dev->num_formats -= 2; |
977e444f AP |
1193 | |
1194 | /* Init videobuf2 queue structure */ | |
f7e5a655 AP |
1195 | dev->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; |
1196 | dev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; | |
1197 | dev->vb_queue.drv_priv = dev; | |
1198 | dev->vb_queue.buf_struct_size = sizeof(struct msi2500_frame_buf); | |
1199 | dev->vb_queue.ops = &msi2500_vb2_ops; | |
1200 | dev->vb_queue.mem_ops = &vb2_vmalloc_memops; | |
1201 | dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
1202 | ret = vb2_queue_init(&dev->vb_queue); | |
3d0c8fa3 | 1203 | if (ret) { |
f7e5a655 | 1204 | dev_err(dev->dev, "Could not initialize vb2 queue\n"); |
977e444f AP |
1205 | goto err_free_mem; |
1206 | } | |
1207 | ||
1208 | /* Init video_device structure */ | |
f7e5a655 AP |
1209 | dev->vdev = msi2500_template; |
1210 | dev->vdev.queue = &dev->vb_queue; | |
1211 | dev->vdev.queue->lock = &dev->vb_queue_lock; | |
1212 | video_set_drvdata(&dev->vdev, dev); | |
977e444f | 1213 | |
977e444f | 1214 | /* Register the v4l2_device structure */ |
f7e5a655 AP |
1215 | dev->v4l2_dev.release = msi2500_video_release; |
1216 | ret = v4l2_device_register(&intf->dev, &dev->v4l2_dev); | |
977e444f | 1217 | if (ret) { |
f7e5a655 | 1218 | dev_err(dev->dev, "Failed to register v4l2-device (%d)\n", ret); |
2e68f841 AP |
1219 | goto err_free_mem; |
1220 | } | |
1221 | ||
1222 | /* SPI master adapter */ | |
f7e5a655 | 1223 | master = spi_alloc_master(dev->dev, 0); |
2e68f841 AP |
1224 | if (master == NULL) { |
1225 | ret = -ENOMEM; | |
1226 | goto err_unregister_v4l2_dev; | |
1227 | } | |
1228 | ||
f7e5a655 | 1229 | dev->master = master; |
9c60cc79 | 1230 | master->bus_num = -1; |
2e68f841 | 1231 | master->num_chipselect = 1; |
06ce32cb | 1232 | master->transfer_one_message = msi2500_transfer_one_message; |
f7e5a655 | 1233 | spi_master_set_devdata(master, dev); |
2e68f841 AP |
1234 | ret = spi_register_master(master); |
1235 | if (ret) { | |
1236 | spi_master_put(master); | |
1237 | goto err_unregister_v4l2_dev; | |
1238 | } | |
1239 | ||
1240 | /* load v4l2 subdevice */ | |
f7e5a655 AP |
1241 | sd = v4l2_spi_new_subdev(&dev->v4l2_dev, master, &board_info); |
1242 | dev->v4l2_subdev = sd; | |
2e68f841 | 1243 | if (sd == NULL) { |
f7e5a655 | 1244 | dev_err(dev->dev, "cannot get v4l2 subdevice\n"); |
2e68f841 AP |
1245 | ret = -ENODEV; |
1246 | goto err_unregister_master; | |
1247 | } | |
1248 | ||
1249 | /* Register controls */ | |
f7e5a655 AP |
1250 | v4l2_ctrl_handler_init(&dev->hdl, 0); |
1251 | if (dev->hdl.error) { | |
1252 | ret = dev->hdl.error; | |
1253 | dev_err(dev->dev, "Could not initialize controls\n"); | |
977e444f AP |
1254 | goto err_free_controls; |
1255 | } | |
1256 | ||
2e68f841 | 1257 | /* currently all controls are from subdev */ |
da1b1aea | 1258 | v4l2_ctrl_add_handler(&dev->hdl, sd->ctrl_handler, NULL, true); |
2e68f841 | 1259 | |
f7e5a655 AP |
1260 | dev->v4l2_dev.ctrl_handler = &dev->hdl; |
1261 | dev->vdev.v4l2_dev = &dev->v4l2_dev; | |
1262 | dev->vdev.lock = &dev->v4l2_lock; | |
8c3854d0 HV |
1263 | dev->vdev.device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | |
1264 | V4L2_CAP_READWRITE | V4L2_CAP_TUNER; | |
977e444f | 1265 | |
f7e5a655 | 1266 | ret = video_register_device(&dev->vdev, VFL_TYPE_SDR, -1); |
3d0c8fa3 | 1267 | if (ret) { |
f7e5a655 AP |
1268 | dev_err(dev->dev, |
1269 | "Failed to register as video device (%d)\n", ret); | |
977e444f AP |
1270 | goto err_unregister_v4l2_dev; |
1271 | } | |
f7e5a655 AP |
1272 | dev_info(dev->dev, "Registered as %s\n", |
1273 | video_device_node_name(&dev->vdev)); | |
1274 | dev_notice(dev->dev, | |
1275 | "SDR API is still slightly experimental and functionality changes may follow\n"); | |
977e444f | 1276 | return 0; |
977e444f | 1277 | err_free_controls: |
f7e5a655 | 1278 | v4l2_ctrl_handler_free(&dev->hdl); |
2e68f841 | 1279 | err_unregister_master: |
f7e5a655 | 1280 | spi_unregister_master(dev->master); |
977e444f | 1281 | err_unregister_v4l2_dev: |
f7e5a655 | 1282 | v4l2_device_unregister(&dev->v4l2_dev); |
977e444f | 1283 | err_free_mem: |
f7e5a655 AP |
1284 | kfree(dev); |
1285 | err: | |
977e444f AP |
1286 | return ret; |
1287 | } | |
1288 | ||
1289 | /* USB device ID list */ | |
7fb2e072 | 1290 | static const struct usb_device_id msi2500_id_table[] = { |
f7e5a655 AP |
1291 | {USB_DEVICE(0x1df7, 0x2500)}, /* Mirics MSi3101 SDR Dongle */ |
1292 | {USB_DEVICE(0x2040, 0xd300)}, /* Hauppauge WinTV 133559 LF */ | |
1293 | {} | |
977e444f | 1294 | }; |
06ce32cb | 1295 | MODULE_DEVICE_TABLE(usb, msi2500_id_table); |
977e444f AP |
1296 | |
1297 | /* USB subsystem interface */ | |
06ce32cb | 1298 | static struct usb_driver msi2500_driver = { |
977e444f | 1299 | .name = KBUILD_MODNAME, |
06ce32cb AP |
1300 | .probe = msi2500_probe, |
1301 | .disconnect = msi2500_disconnect, | |
1302 | .id_table = msi2500_id_table, | |
977e444f AP |
1303 | }; |
1304 | ||
06ce32cb | 1305 | module_usb_driver(msi2500_driver); |
977e444f AP |
1306 | |
1307 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
1308 | MODULE_DESCRIPTION("Mirics MSi3101 SDR Dongle"); | |
1309 | MODULE_LICENSE("GPL"); |