Commit | Line | Data |
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977e444f AP |
1 | /* |
2 | * Mirics MSi3101 SDR Dongle driver | |
3 | * | |
4 | * Copyright (C) 2013 Antti Palosaari <crope@iki.fi> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
00e049b0 AP |
19 | * |
20 | * That driver is somehow based of pwc driver: | |
21 | * (C) 1999-2004 Nemosoft Unv. | |
22 | * (C) 2004-2006 Luc Saillard (luc@saillard.org) | |
23 | * (C) 2011 Hans de Goede <hdegoede@redhat.com> | |
977e444f AP |
24 | */ |
25 | ||
977e444f | 26 | #include <linux/module.h> |
977e444f | 27 | #include <linux/slab.h> |
04e40bdd | 28 | #include <asm/div64.h> |
977e444f AP |
29 | #include <media/v4l2-device.h> |
30 | #include <media/v4l2-ioctl.h> | |
31 | #include <media/v4l2-ctrls.h> | |
32 | #include <media/v4l2-event.h> | |
33 | #include <linux/usb.h> | |
977e444f | 34 | #include <media/videobuf2-vmalloc.h> |
2e68f841 | 35 | #include <linux/spi/spi.h> |
977e444f | 36 | |
06ce32cb AP |
37 | static bool msi2500_emulated_fmt; |
38 | module_param_named(emulated_formats, msi2500_emulated_fmt, bool, 0644); | |
3912eb6d AP |
39 | MODULE_PARM_DESC(emulated_formats, "enable emulated formats (disappears in future)"); |
40 | ||
977e444f AP |
41 | /* |
42 | * iConfiguration 0 | |
43 | * bInterfaceNumber 0 | |
44 | * bAlternateSetting 1 | |
45 | * bNumEndpoints 1 | |
46 | * bEndpointAddress 0x81 EP 1 IN | |
47 | * bmAttributes 1 | |
48 | * Transfer Type Isochronous | |
49 | * wMaxPacketSize 0x1400 3x 1024 bytes | |
50 | * bInterval 1 | |
51 | */ | |
52 | #define MAX_ISO_BUFS (8) | |
53 | #define ISO_FRAMES_PER_DESC (8) | |
54 | #define ISO_MAX_FRAME_SIZE (3 * 1024) | |
55 | #define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE) | |
977e444f AP |
56 | #define MAX_ISOC_ERRORS 20 |
57 | ||
c08de62f AP |
58 | /* |
59 | * TODO: These formats should be moved to V4L2 API. Formats are currently | |
60 | * disabled from formats[] table, not visible to userspace. | |
61 | */ | |
62 | /* signed 12-bit */ | |
63 | #define MSI2500_PIX_FMT_SDR_S12 v4l2_fourcc('D', 'S', '1', '2') | |
64 | /* Mirics MSi2500 format 384 */ | |
65 | #define MSI2500_PIX_FMT_SDR_MSI2500_384 v4l2_fourcc('M', '3', '8', '4') | |
3d0c8fa3 | 66 | |
2e68f841 | 67 | static const struct v4l2_frequency_band bands[] = { |
3d0c8fa3 AP |
68 | { |
69 | .tuner = 0, | |
70 | .type = V4L2_TUNER_ADC, | |
71 | .index = 0, | |
72 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
73 | .rangelow = 1200000, | |
74 | .rangehigh = 15000000, | |
75 | }, | |
76 | }; | |
77 | ||
3d0c8fa3 | 78 | /* stream formats */ |
06ce32cb | 79 | struct msi2500_format { |
3d0c8fa3 AP |
80 | char *name; |
81 | u32 pixelformat; | |
a54e0fee | 82 | u32 buffersize; |
3d0c8fa3 AP |
83 | }; |
84 | ||
85 | /* format descriptions for capture and preview */ | |
06ce32cb | 86 | static struct msi2500_format formats[] = { |
3d0c8fa3 | 87 | { |
3912eb6d AP |
88 | .name = "Complex S8", |
89 | .pixelformat = V4L2_SDR_FMT_CS8, | |
a54e0fee | 90 | .buffersize = 3 * 1008, |
3d0c8fa3 | 91 | #if 0 |
3d0c8fa3 AP |
92 | }, { |
93 | .name = "10+2-bit signed", | |
c08de62f | 94 | .pixelformat = MSI2500_PIX_FMT_SDR_MSI2500_384, |
3d0c8fa3 AP |
95 | }, { |
96 | .name = "12-bit signed", | |
c08de62f | 97 | .pixelformat = MSI2500_PIX_FMT_SDR_S12, |
3d0c8fa3 | 98 | #endif |
3912eb6d AP |
99 | }, { |
100 | .name = "Complex S14LE", | |
101 | .pixelformat = V4L2_SDR_FMT_CS14LE, | |
a54e0fee | 102 | .buffersize = 3 * 1008, |
3912eb6d AP |
103 | }, { |
104 | .name = "Complex U8 (emulated)", | |
105 | .pixelformat = V4L2_SDR_FMT_CU8, | |
a54e0fee | 106 | .buffersize = 3 * 1008, |
3912eb6d AP |
107 | }, { |
108 | .name = "Complex U16LE (emulated)", | |
109 | .pixelformat = V4L2_SDR_FMT_CU16LE, | |
a54e0fee | 110 | .buffersize = 3 * 1008, |
3d0c8fa3 AP |
111 | }, |
112 | }; | |
113 | ||
114 | static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); | |
977e444f AP |
115 | |
116 | /* intermediate buffers with raw data from the USB device */ | |
06ce32cb | 117 | struct msi2500_frame_buf { |
977e444f AP |
118 | struct vb2_buffer vb; /* common v4l buffer stuff -- must be first */ |
119 | struct list_head list; | |
977e444f AP |
120 | }; |
121 | ||
06ce32cb | 122 | struct msi2500_state { |
977e444f AP |
123 | struct video_device vdev; |
124 | struct v4l2_device v4l2_dev; | |
2e68f841 AP |
125 | struct v4l2_subdev *v4l2_subdev; |
126 | struct spi_master *master; | |
977e444f AP |
127 | |
128 | /* videobuf2 queue and queued buffers list */ | |
129 | struct vb2_queue vb_queue; | |
130 | struct list_head queued_bufs; | |
131 | spinlock_t queued_bufs_lock; /* Protects queued_bufs */ | |
132 | ||
133 | /* Note if taking both locks v4l2_lock must always be locked first! */ | |
134 | struct mutex v4l2_lock; /* Protects everything else */ | |
135 | struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ | |
136 | ||
137 | /* Pointer to our usb_device, will be NULL after unplug */ | |
138 | struct usb_device *udev; /* Both mutexes most be hold when setting! */ | |
139 | ||
2e68f841 | 140 | unsigned int f_adc; |
3d0c8fa3 | 141 | u32 pixelformat; |
a54e0fee | 142 | u32 buffersize; |
3912eb6d | 143 | unsigned int num_formats; |
3d0c8fa3 | 144 | |
977e444f AP |
145 | unsigned int isoc_errors; /* number of contiguous ISOC errors */ |
146 | unsigned int vb_full; /* vb is full and packets dropped */ | |
147 | ||
148 | struct urb *urbs[MAX_ISO_BUFS]; | |
149 | ||
150 | /* Controls */ | |
3d0c8fa3 | 151 | struct v4l2_ctrl_handler hdl; |
977e444f | 152 | |
34599b9b AP |
153 | u32 next_sample; /* for track lost packets */ |
154 | u32 sample; /* for sample rate calc */ | |
3d0c8fa3 | 155 | unsigned long jiffies_next; |
02004681 | 156 | unsigned int sample_ctrl_bit[4]; |
977e444f AP |
157 | }; |
158 | ||
159 | /* Private functions */ | |
06ce32cb AP |
160 | static struct msi2500_frame_buf *msi2500_get_next_fill_buf( |
161 | struct msi2500_state *s) | |
977e444f AP |
162 | { |
163 | unsigned long flags = 0; | |
06ce32cb | 164 | struct msi2500_frame_buf *buf = NULL; |
977e444f AP |
165 | |
166 | spin_lock_irqsave(&s->queued_bufs_lock, flags); | |
167 | if (list_empty(&s->queued_bufs)) | |
168 | goto leave; | |
169 | ||
06ce32cb | 170 | buf = list_entry(s->queued_bufs.next, struct msi2500_frame_buf, list); |
977e444f AP |
171 | list_del(&buf->list); |
172 | leave: | |
173 | spin_unlock_irqrestore(&s->queued_bufs_lock, flags); | |
174 | return buf; | |
175 | } | |
176 | ||
02004681 AP |
177 | /* |
178 | * +=========================================================================== | |
3d0c8fa3 | 179 | * | 00-1023 | USB packet type '504' |
02004681 AP |
180 | * +=========================================================================== |
181 | * | 00- 03 | sequence number of first sample in that USB packet | |
182 | * +--------------------------------------------------------------------------- | |
183 | * | 04- 15 | garbage | |
184 | * +--------------------------------------------------------------------------- | |
3d0c8fa3 | 185 | * | 16-1023 | samples |
02004681 | 186 | * +--------------------------------------------------------------------------- |
3d0c8fa3 AP |
187 | * signed 8-bit sample |
188 | * 504 * 2 = 1008 samples | |
8591f708 AP |
189 | * |
190 | * | |
3d0c8fa3 AP |
191 | * +=========================================================================== |
192 | * | 00-1023 | USB packet type '384' | |
193 | * +=========================================================================== | |
194 | * | 00- 03 | sequence number of first sample in that USB packet | |
195 | * +--------------------------------------------------------------------------- | |
196 | * | 04- 15 | garbage | |
197 | * +--------------------------------------------------------------------------- | |
198 | * | 16- 175 | samples | |
199 | * +--------------------------------------------------------------------------- | |
200 | * | 176- 179 | control bits for previous samples | |
201 | * +--------------------------------------------------------------------------- | |
202 | * | 180- 339 | samples | |
203 | * +--------------------------------------------------------------------------- | |
204 | * | 340- 343 | control bits for previous samples | |
205 | * +--------------------------------------------------------------------------- | |
206 | * | 344- 503 | samples | |
207 | * +--------------------------------------------------------------------------- | |
208 | * | 504- 507 | control bits for previous samples | |
209 | * +--------------------------------------------------------------------------- | |
210 | * | 508- 667 | samples | |
211 | * +--------------------------------------------------------------------------- | |
212 | * | 668- 671 | control bits for previous samples | |
213 | * +--------------------------------------------------------------------------- | |
214 | * | 672- 831 | samples | |
215 | * +--------------------------------------------------------------------------- | |
216 | * | 832- 835 | control bits for previous samples | |
217 | * +--------------------------------------------------------------------------- | |
218 | * | 836- 995 | samples | |
219 | * +--------------------------------------------------------------------------- | |
220 | * | 996- 999 | control bits for previous samples | |
221 | * +--------------------------------------------------------------------------- | |
222 | * | 1000-1023 | garbage | |
223 | * +--------------------------------------------------------------------------- | |
224 | * | |
225 | * Bytes 4 - 7 could have some meaning? | |
226 | * | |
227 | * Control bits for previous samples is 32-bit field, containing 16 x 2-bit | |
228 | * numbers. This results one 2-bit number for 8 samples. It is likely used for | |
229 | * for bit shifting sample by given bits, increasing actual sampling resolution. | |
230 | * Number 2 (0b10) was never seen. | |
231 | * | |
232 | * 6 * 16 * 2 * 4 = 768 samples. 768 * 4 = 3072 bytes | |
8591f708 AP |
233 | * |
234 | * | |
3d0c8fa3 AP |
235 | * +=========================================================================== |
236 | * | 00-1023 | USB packet type '336' | |
237 | * +=========================================================================== | |
238 | * | 00- 03 | sequence number of first sample in that USB packet | |
239 | * +--------------------------------------------------------------------------- | |
240 | * | 04- 15 | garbage | |
241 | * +--------------------------------------------------------------------------- | |
242 | * | 16-1023 | samples | |
243 | * +--------------------------------------------------------------------------- | |
244 | * signed 12-bit sample | |
8591f708 AP |
245 | * |
246 | * | |
3d0c8fa3 AP |
247 | * +=========================================================================== |
248 | * | 00-1023 | USB packet type '252' | |
249 | * +=========================================================================== | |
250 | * | 00- 03 | sequence number of first sample in that USB packet | |
251 | * +--------------------------------------------------------------------------- | |
252 | * | 04- 15 | garbage | |
253 | * +--------------------------------------------------------------------------- | |
254 | * | 16-1023 | samples | |
255 | * +--------------------------------------------------------------------------- | |
256 | * signed 14-bit sample | |
554cbfbe | 257 | */ |
3d0c8fa3 | 258 | |
06ce32cb | 259 | static int msi2500_convert_stream(struct msi2500_state *s, u8 *dst, u8 *src, |
8591f708 | 260 | unsigned int src_len) |
554cbfbe | 261 | { |
8591f708 AP |
262 | unsigned int i, j, transactions, dst_len = 0; |
263 | u32 sample[3]; | |
554cbfbe | 264 | |
8591f708 AP |
265 | /* There could be 1-3 1024 byte transactions per packet */ |
266 | transactions = src_len / 1024; | |
554cbfbe | 267 | |
8591f708 AP |
268 | for (i = 0; i < transactions; i++) { |
269 | sample[i] = src[3] << 24 | src[2] << 16 | src[1] << 8 | | |
270 | src[0] << 0; | |
271 | if (i == 0 && s->next_sample != sample[0]) { | |
554cbfbe AP |
272 | dev_dbg_ratelimited(&s->udev->dev, |
273 | "%d samples lost, %d %08x:%08x\n", | |
8591f708 AP |
274 | sample[0] - s->next_sample, |
275 | src_len, s->next_sample, sample[0]); | |
554cbfbe AP |
276 | } |
277 | ||
278 | /* | |
279 | * Dump all unknown 'garbage' data - maybe we will discover | |
280 | * someday if there is something rational... | |
281 | */ | |
282 | dev_dbg_ratelimited(&s->udev->dev, "%*ph\n", 12, &src[4]); | |
283 | ||
8591f708 | 284 | src += 16; /* skip header */ |
554cbfbe | 285 | |
8591f708 AP |
286 | switch (s->pixelformat) { |
287 | case V4L2_SDR_FMT_CU8: /* 504 x IQ samples */ | |
288 | { | |
289 | s8 *s8src = (s8 *) src; | |
290 | u8 *u8dst = (u8 *) dst; | |
554cbfbe | 291 | |
8591f708 AP |
292 | for (j = 0; j < 1008; j++) |
293 | *u8dst++ = *s8src++ + 128; | |
3d0c8fa3 | 294 | |
8591f708 AP |
295 | src += 1008; |
296 | dst += 1008; | |
297 | dst_len += 1008; | |
298 | s->next_sample = sample[i] + 504; | |
299 | break; | |
554cbfbe | 300 | } |
8591f708 AP |
301 | case V4L2_SDR_FMT_CU16LE: /* 252 x IQ samples */ |
302 | { | |
303 | s16 *s16src = (s16 *) src; | |
304 | u16 *u16dst = (u16 *) dst; | |
305 | struct {signed int x:14; } se; /* sign extension */ | |
306 | unsigned int utmp; | |
307 | ||
308 | for (j = 0; j < 1008; j += 2) { | |
309 | /* sign extension from 14-bit to signed int */ | |
310 | se.x = *s16src++; | |
311 | /* from signed int to unsigned int */ | |
312 | utmp = se.x + 8192; | |
313 | /* from 14-bit to 16-bit */ | |
314 | *u16dst++ = utmp << 2 | utmp >> 12; | |
315 | } | |
3d0c8fa3 | 316 | |
8591f708 AP |
317 | src += 1008; |
318 | dst += 1008; | |
319 | dst_len += 1008; | |
320 | s->next_sample = sample[i] + 252; | |
321 | break; | |
322 | } | |
323 | case MSI2500_PIX_FMT_SDR_MSI2500_384: /* 384 x IQ samples */ | |
324 | /* Dump unknown 'garbage' data */ | |
325 | dev_dbg_ratelimited(&s->udev->dev, | |
326 | "%*ph\n", 24, &src[1000]); | |
327 | memcpy(dst, src, 984); | |
328 | src += 984 + 24; | |
329 | dst += 984; | |
330 | dst_len += 984; | |
331 | s->next_sample = sample[i] + 384; | |
332 | break; | |
333 | case V4L2_SDR_FMT_CS8: /* 504 x IQ samples */ | |
334 | memcpy(dst, src, 1008); | |
335 | src += 1008; | |
336 | dst += 1008; | |
337 | dst_len += 1008; | |
338 | s->next_sample = sample[i] + 504; | |
339 | break; | |
340 | case MSI2500_PIX_FMT_SDR_S12: /* 336 x IQ samples */ | |
341 | memcpy(dst, src, 1008); | |
342 | src += 1008; | |
343 | dst += 1008; | |
344 | dst_len += 1008; | |
345 | s->next_sample = sample[i] + 336; | |
346 | break; | |
347 | case V4L2_SDR_FMT_CS14LE: /* 252 x IQ samples */ | |
348 | memcpy(dst, src, 1008); | |
349 | src += 1008; | |
350 | dst += 1008; | |
351 | dst_len += 1008; | |
352 | s->next_sample = sample[i] + 252; | |
353 | break; | |
354 | default: | |
355 | break; | |
356 | } | |
554cbfbe AP |
357 | } |
358 | ||
8591f708 | 359 | /* calculate sample rate and output it in 10 seconds intervals */ |
3d0c8fa3 | 360 | if (unlikely(time_is_before_jiffies(s->jiffies_next))) { |
8591f708 AP |
361 | #define MSECS 10000UL |
362 | unsigned int msecs = jiffies_to_msecs(jiffies - | |
363 | s->jiffies_next + msecs_to_jiffies(MSECS)); | |
364 | unsigned int samples = s->next_sample - s->sample; | |
c08de62f | 365 | |
3d0c8fa3 | 366 | s->jiffies_next = jiffies + msecs_to_jiffies(MSECS); |
8591f708 | 367 | s->sample = s->next_sample; |
554cbfbe | 368 | dev_dbg(&s->udev->dev, |
8591f708 AP |
369 | "size=%u samples=%u msecs=%u sample rate=%lu\n", |
370 | src_len, samples, msecs, | |
371 | samples * 1000UL / msecs); | |
554cbfbe AP |
372 | } |
373 | ||
554cbfbe AP |
374 | return dst_len; |
375 | } | |
376 | ||
977e444f AP |
377 | /* |
378 | * This gets called for the Isochronous pipe (stream). This is done in interrupt | |
379 | * time, so it has to be fast, not crash, and not stall. Neat. | |
380 | */ | |
06ce32cb | 381 | static void msi2500_isoc_handler(struct urb *urb) |
977e444f | 382 | { |
06ce32cb | 383 | struct msi2500_state *s = (struct msi2500_state *)urb->context; |
977e444f AP |
384 | int i, flen, fstatus; |
385 | unsigned char *iso_buf = NULL; | |
06ce32cb | 386 | struct msi2500_frame_buf *fbuf; |
977e444f | 387 | |
3d0c8fa3 AP |
388 | if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET || |
389 | urb->status == -ESHUTDOWN)) { | |
977e444f AP |
390 | dev_dbg(&s->udev->dev, "URB (%p) unlinked %ssynchronuously\n", |
391 | urb, urb->status == -ENOENT ? "" : "a"); | |
392 | return; | |
393 | } | |
394 | ||
3d0c8fa3 | 395 | if (unlikely(urb->status != 0)) { |
977e444f | 396 | dev_dbg(&s->udev->dev, |
06ce32cb | 397 | "msi2500_isoc_handler() called with status %d\n", |
977e444f AP |
398 | urb->status); |
399 | /* Give up after a number of contiguous errors */ | |
400 | if (++s->isoc_errors > MAX_ISOC_ERRORS) | |
401 | dev_dbg(&s->udev->dev, | |
402 | "Too many ISOC errors, bailing out\n"); | |
403 | goto handler_end; | |
404 | } else { | |
405 | /* Reset ISOC error counter. We did get here, after all. */ | |
406 | s->isoc_errors = 0; | |
407 | } | |
408 | ||
409 | /* Compact data */ | |
410 | for (i = 0; i < urb->number_of_packets; i++) { | |
554cbfbe AP |
411 | void *ptr; |
412 | ||
977e444f AP |
413 | /* Check frame error */ |
414 | fstatus = urb->iso_frame_desc[i].status; | |
3d0c8fa3 | 415 | if (unlikely(fstatus)) { |
00e049b0 | 416 | dev_dbg_ratelimited(&s->udev->dev, |
977e444f AP |
417 | "frame=%d/%d has error %d skipping\n", |
418 | i, urb->number_of_packets, fstatus); | |
3d0c8fa3 | 419 | continue; |
977e444f AP |
420 | } |
421 | ||
422 | /* Check if that frame contains data */ | |
423 | flen = urb->iso_frame_desc[i].actual_length; | |
3d0c8fa3 AP |
424 | if (unlikely(flen == 0)) |
425 | continue; | |
977e444f AP |
426 | |
427 | iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
428 | ||
429 | /* Get free framebuffer */ | |
06ce32cb | 430 | fbuf = msi2500_get_next_fill_buf(s); |
3d0c8fa3 | 431 | if (unlikely(fbuf == NULL)) { |
977e444f AP |
432 | s->vb_full++; |
433 | dev_dbg_ratelimited(&s->udev->dev, | |
434 | "videobuf is full, %d packets dropped\n", | |
435 | s->vb_full); | |
3d0c8fa3 | 436 | continue; |
977e444f AP |
437 | } |
438 | ||
439 | /* fill framebuffer */ | |
554cbfbe | 440 | ptr = vb2_plane_vaddr(&fbuf->vb, 0); |
06ce32cb | 441 | flen = msi2500_convert_stream(s, ptr, iso_buf, flen); |
554cbfbe | 442 | vb2_set_plane_payload(&fbuf->vb, 0, flen); |
977e444f | 443 | vb2_buffer_done(&fbuf->vb, VB2_BUF_STATE_DONE); |
977e444f AP |
444 | } |
445 | ||
446 | handler_end: | |
447 | i = usb_submit_urb(urb, GFP_ATOMIC); | |
3d0c8fa3 | 448 | if (unlikely(i != 0)) |
977e444f | 449 | dev_dbg(&s->udev->dev, |
06ce32cb | 450 | "Error (%d) re-submitting urb in msi2500_isoc_handler\n", |
977e444f AP |
451 | i); |
452 | } | |
453 | ||
06ce32cb | 454 | static void msi2500_iso_stop(struct msi2500_state *s) |
977e444f AP |
455 | { |
456 | int i; | |
c08de62f | 457 | |
977e444f AP |
458 | dev_dbg(&s->udev->dev, "%s:\n", __func__); |
459 | ||
460 | /* Unlinking ISOC buffers one by one */ | |
461 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
462 | if (s->urbs[i]) { | |
463 | dev_dbg(&s->udev->dev, "Unlinking URB %p\n", | |
464 | s->urbs[i]); | |
465 | usb_kill_urb(s->urbs[i]); | |
466 | } | |
467 | } | |
468 | } | |
469 | ||
06ce32cb | 470 | static void msi2500_iso_free(struct msi2500_state *s) |
977e444f AP |
471 | { |
472 | int i; | |
c08de62f | 473 | |
977e444f AP |
474 | dev_dbg(&s->udev->dev, "%s:\n", __func__); |
475 | ||
476 | /* Freeing ISOC buffers one by one */ | |
477 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
478 | if (s->urbs[i]) { | |
479 | dev_dbg(&s->udev->dev, "Freeing URB\n"); | |
480 | if (s->urbs[i]->transfer_buffer) { | |
481 | usb_free_coherent(s->udev, | |
482 | s->urbs[i]->transfer_buffer_length, | |
483 | s->urbs[i]->transfer_buffer, | |
484 | s->urbs[i]->transfer_dma); | |
485 | } | |
486 | usb_free_urb(s->urbs[i]); | |
487 | s->urbs[i] = NULL; | |
488 | } | |
489 | } | |
490 | } | |
491 | ||
492 | /* Both v4l2_lock and vb_queue_lock should be locked when calling this */ | |
06ce32cb | 493 | static void msi2500_isoc_cleanup(struct msi2500_state *s) |
977e444f AP |
494 | { |
495 | dev_dbg(&s->udev->dev, "%s:\n", __func__); | |
496 | ||
06ce32cb AP |
497 | msi2500_iso_stop(s); |
498 | msi2500_iso_free(s); | |
977e444f AP |
499 | } |
500 | ||
501 | /* Both v4l2_lock and vb_queue_lock should be locked when calling this */ | |
06ce32cb | 502 | static int msi2500_isoc_init(struct msi2500_state *s) |
977e444f | 503 | { |
977e444f AP |
504 | struct urb *urb; |
505 | int i, j, ret; | |
c08de62f | 506 | |
977e444f AP |
507 | dev_dbg(&s->udev->dev, "%s:\n", __func__); |
508 | ||
509 | s->isoc_errors = 0; | |
977e444f AP |
510 | |
511 | ret = usb_set_interface(s->udev, 0, 1); | |
3d0c8fa3 | 512 | if (ret) |
977e444f AP |
513 | return ret; |
514 | ||
515 | /* Allocate and init Isochronuous urbs */ | |
516 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
517 | urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); | |
518 | if (urb == NULL) { | |
519 | dev_err(&s->udev->dev, | |
520 | "Failed to allocate urb %d\n", i); | |
06ce32cb | 521 | msi2500_isoc_cleanup(s); |
977e444f AP |
522 | return -ENOMEM; |
523 | } | |
524 | s->urbs[i] = urb; | |
525 | dev_dbg(&s->udev->dev, "Allocated URB at 0x%p\n", urb); | |
526 | ||
527 | urb->interval = 1; | |
de3f2e2e AP |
528 | urb->dev = s->udev; |
529 | urb->pipe = usb_rcvisocpipe(s->udev, 0x81); | |
977e444f | 530 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
de3f2e2e AP |
531 | urb->transfer_buffer = usb_alloc_coherent(s->udev, |
532 | ISO_BUFFER_SIZE, | |
977e444f AP |
533 | GFP_KERNEL, &urb->transfer_dma); |
534 | if (urb->transfer_buffer == NULL) { | |
535 | dev_err(&s->udev->dev, | |
536 | "Failed to allocate urb buffer %d\n", | |
537 | i); | |
06ce32cb | 538 | msi2500_isoc_cleanup(s); |
977e444f AP |
539 | return -ENOMEM; |
540 | } | |
541 | urb->transfer_buffer_length = ISO_BUFFER_SIZE; | |
06ce32cb | 542 | urb->complete = msi2500_isoc_handler; |
977e444f AP |
543 | urb->context = s; |
544 | urb->start_frame = 0; | |
545 | urb->number_of_packets = ISO_FRAMES_PER_DESC; | |
546 | for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { | |
547 | urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; | |
548 | urb->iso_frame_desc[j].length = ISO_MAX_FRAME_SIZE; | |
549 | } | |
550 | } | |
551 | ||
552 | /* link */ | |
553 | for (i = 0; i < MAX_ISO_BUFS; i++) { | |
554 | ret = usb_submit_urb(s->urbs[i], GFP_KERNEL); | |
555 | if (ret) { | |
556 | dev_err(&s->udev->dev, | |
557 | "isoc_init() submit_urb %d failed with error %d\n", | |
558 | i, ret); | |
06ce32cb | 559 | msi2500_isoc_cleanup(s); |
977e444f AP |
560 | return ret; |
561 | } | |
562 | dev_dbg(&s->udev->dev, "URB 0x%p submitted.\n", s->urbs[i]); | |
563 | } | |
564 | ||
565 | /* All is done... */ | |
566 | return 0; | |
567 | } | |
568 | ||
569 | /* Must be called with vb_queue_lock hold */ | |
06ce32cb | 570 | static void msi2500_cleanup_queued_bufs(struct msi2500_state *s) |
977e444f AP |
571 | { |
572 | unsigned long flags = 0; | |
c08de62f | 573 | |
977e444f AP |
574 | dev_dbg(&s->udev->dev, "%s:\n", __func__); |
575 | ||
576 | spin_lock_irqsave(&s->queued_bufs_lock, flags); | |
577 | while (!list_empty(&s->queued_bufs)) { | |
06ce32cb | 578 | struct msi2500_frame_buf *buf; |
977e444f | 579 | |
06ce32cb | 580 | buf = list_entry(s->queued_bufs.next, struct msi2500_frame_buf, |
977e444f AP |
581 | list); |
582 | list_del(&buf->list); | |
583 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
584 | } | |
585 | spin_unlock_irqrestore(&s->queued_bufs_lock, flags); | |
586 | } | |
587 | ||
588 | /* The user yanked out the cable... */ | |
06ce32cb | 589 | static void msi2500_disconnect(struct usb_interface *intf) |
977e444f AP |
590 | { |
591 | struct v4l2_device *v = usb_get_intfdata(intf); | |
06ce32cb AP |
592 | struct msi2500_state *s = |
593 | container_of(v, struct msi2500_state, v4l2_dev); | |
c08de62f | 594 | |
977e444f AP |
595 | dev_dbg(&s->udev->dev, "%s:\n", __func__); |
596 | ||
597 | mutex_lock(&s->vb_queue_lock); | |
598 | mutex_lock(&s->v4l2_lock); | |
599 | /* No need to keep the urbs around after disconnection */ | |
600 | s->udev = NULL; | |
977e444f AP |
601 | v4l2_device_disconnect(&s->v4l2_dev); |
602 | video_unregister_device(&s->vdev); | |
2e68f841 | 603 | spi_unregister_master(s->master); |
977e444f AP |
604 | mutex_unlock(&s->v4l2_lock); |
605 | mutex_unlock(&s->vb_queue_lock); | |
606 | ||
607 | v4l2_device_put(&s->v4l2_dev); | |
608 | } | |
609 | ||
06ce32cb | 610 | static int msi2500_querycap(struct file *file, void *fh, |
977e444f AP |
611 | struct v4l2_capability *cap) |
612 | { | |
06ce32cb | 613 | struct msi2500_state *s = video_drvdata(file); |
c08de62f | 614 | |
977e444f AP |
615 | dev_dbg(&s->udev->dev, "%s:\n", __func__); |
616 | ||
617 | strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); | |
618 | strlcpy(cap->card, s->vdev.name, sizeof(cap->card)); | |
619 | usb_make_path(s->udev, cap->bus_info, sizeof(cap->bus_info)); | |
3d0c8fa3 AP |
620 | cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | |
621 | V4L2_CAP_READWRITE | V4L2_CAP_TUNER; | |
977e444f AP |
622 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; |
623 | return 0; | |
624 | } | |
625 | ||
977e444f | 626 | /* Videobuf2 operations */ |
06ce32cb | 627 | static int msi2500_queue_setup(struct vb2_queue *vq, |
977e444f AP |
628 | const struct v4l2_format *fmt, unsigned int *nbuffers, |
629 | unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) | |
630 | { | |
06ce32cb | 631 | struct msi2500_state *s = vb2_get_drv_priv(vq); |
c08de62f | 632 | |
977e444f AP |
633 | dev_dbg(&s->udev->dev, "%s: *nbuffers=%d\n", __func__, *nbuffers); |
634 | ||
635 | /* Absolute min and max number of buffers available for mmap() */ | |
d287e4e3 | 636 | *nbuffers = clamp_t(unsigned int, *nbuffers, 8, 32); |
977e444f | 637 | *nplanes = 1; |
a54e0fee | 638 | sizes[0] = PAGE_ALIGN(s->buffersize); |
977e444f AP |
639 | dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n", |
640 | __func__, *nbuffers, sizes[0]); | |
641 | return 0; | |
642 | } | |
643 | ||
06ce32cb | 644 | static void msi2500_buf_queue(struct vb2_buffer *vb) |
977e444f | 645 | { |
06ce32cb AP |
646 | struct msi2500_state *s = vb2_get_drv_priv(vb->vb2_queue); |
647 | struct msi2500_frame_buf *buf = | |
648 | container_of(vb, struct msi2500_frame_buf, vb); | |
977e444f AP |
649 | unsigned long flags = 0; |
650 | ||
651 | /* Check the device has not disconnected between prep and queuing */ | |
3d0c8fa3 | 652 | if (unlikely(!s->udev)) { |
977e444f AP |
653 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); |
654 | return; | |
655 | } | |
656 | ||
657 | spin_lock_irqsave(&s->queued_bufs_lock, flags); | |
658 | list_add_tail(&buf->list, &s->queued_bufs); | |
659 | spin_unlock_irqrestore(&s->queued_bufs_lock, flags); | |
660 | } | |
661 | ||
662 | #define CMD_WREG 0x41 | |
663 | #define CMD_START_STREAMING 0x43 | |
664 | #define CMD_STOP_STREAMING 0x45 | |
665 | #define CMD_READ_UNKNOW 0x48 | |
666 | ||
06ce32cb | 667 | #define msi2500_dbg_usb_control_msg(_udev, _r, _t, _v, _i, _b, _l) { \ |
c08de62f AP |
668 | char *_direction; \ |
669 | if (_t & USB_DIR_IN) \ | |
670 | _direction = "<<<"; \ | |
977e444f | 671 | else \ |
c08de62f AP |
672 | _direction = ">>>"; \ |
673 | dev_dbg(&_udev->dev, "%s: %02x %02x %02x %02x %02x %02x %02x %02x " \ | |
674 | "%s %*ph\n", __func__, _t, _r, _v & 0xff, _v >> 8, \ | |
675 | _i & 0xff, _i >> 8, _l & 0xff, _l >> 8, _direction, \ | |
676 | _l, _b); \ | |
977e444f AP |
677 | } |
678 | ||
06ce32cb | 679 | static int msi2500_ctrl_msg(struct msi2500_state *s, u8 cmd, u32 data) |
977e444f AP |
680 | { |
681 | int ret; | |
682 | u8 request = cmd; | |
683 | u8 requesttype = USB_DIR_OUT | USB_TYPE_VENDOR; | |
684 | u16 value = (data >> 0) & 0xffff; | |
685 | u16 index = (data >> 16) & 0xffff; | |
686 | ||
06ce32cb | 687 | msi2500_dbg_usb_control_msg(s->udev, |
977e444f AP |
688 | request, requesttype, value, index, NULL, 0); |
689 | ||
d0fadf40 | 690 | ret = usb_control_msg(s->udev, usb_sndctrlpipe(s->udev, 0), |
977e444f AP |
691 | request, requesttype, value, index, NULL, 0, 2000); |
692 | ||
693 | if (ret) | |
694 | dev_err(&s->udev->dev, "%s: failed %d, cmd %02x, data %04x\n", | |
695 | __func__, ret, cmd, data); | |
696 | ||
697 | return ret; | |
698 | }; | |
699 | ||
977e444f | 700 | #define F_REF 24000000 |
b1520857 | 701 | #define DIV_R_IN 2 |
06ce32cb | 702 | static int msi2500_set_usb_adc(struct msi2500_state *s) |
977e444f | 703 | { |
22ca680e | 704 | int ret, div_n, div_m, div_r_out, f_sr, f_vco, fract; |
554cbfbe | 705 | u32 reg3, reg4, reg7; |
2e68f841 AP |
706 | struct v4l2_ctrl *bandwidth_auto; |
707 | struct v4l2_ctrl *bandwidth; | |
554cbfbe | 708 | |
3d0c8fa3 | 709 | f_sr = s->f_adc; |
554cbfbe | 710 | |
2e68f841 | 711 | /* set tuner, subdev, filters according to sampling rate */ |
c08de62f AP |
712 | bandwidth_auto = v4l2_ctrl_find(&s->hdl, |
713 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); | |
2e68f841 | 714 | if (v4l2_ctrl_g_ctrl(bandwidth_auto)) { |
c08de62f AP |
715 | bandwidth = v4l2_ctrl_find(&s->hdl, |
716 | V4L2_CID_RF_TUNER_BANDWIDTH); | |
2e68f841 AP |
717 | v4l2_ctrl_s_ctrl(bandwidth, s->f_adc); |
718 | } | |
554cbfbe AP |
719 | |
720 | /* select stream format */ | |
3d0c8fa3 AP |
721 | switch (s->pixelformat) { |
722 | case V4L2_SDR_FMT_CU8: | |
8591f708 | 723 | reg7 = 0x000c9407; /* 504 */ |
3d0c8fa3 AP |
724 | break; |
725 | case V4L2_SDR_FMT_CU16LE: | |
8591f708 | 726 | reg7 = 0x00009407; /* 252 */ |
3d0c8fa3 | 727 | break; |
3912eb6d | 728 | case V4L2_SDR_FMT_CS8: |
8591f708 | 729 | reg7 = 0x000c9407; /* 504 */ |
3d0c8fa3 | 730 | break; |
c08de62f | 731 | case MSI2500_PIX_FMT_SDR_MSI2500_384: |
8591f708 | 732 | reg7 = 0x0000a507; /* 384 */ |
3d0c8fa3 | 733 | break; |
c08de62f | 734 | case MSI2500_PIX_FMT_SDR_S12: |
8591f708 | 735 | reg7 = 0x00008507; /* 336 */ |
3d0c8fa3 | 736 | break; |
3912eb6d | 737 | case V4L2_SDR_FMT_CS14LE: |
8591f708 | 738 | reg7 = 0x00009407; /* 252 */ |
3d0c8fa3 AP |
739 | break; |
740 | default: | |
8591f708 | 741 | reg7 = 0x000c9407; /* 504 */ |
3d0c8fa3 | 742 | break; |
554cbfbe AP |
743 | } |
744 | ||
977e444f | 745 | /* |
b1520857 | 746 | * Synthesizer config is just a educated guess... |
977e444f | 747 | * |
977e444f | 748 | * [7:0] 0x03, register address |
3d0c8fa3 AP |
749 | * [8] 1, power control |
750 | * [9] ?, power control | |
977e444f AP |
751 | * [12:10] output divider |
752 | * [13] 0 ? | |
753 | * [14] 0 ? | |
22ca680e | 754 | * [15] fractional MSB, bit 20 |
977e444f AP |
755 | * [16:19] N |
756 | * [23:20] ? | |
757 | * [24:31] 0x01 | |
758 | * | |
759 | * output divider | |
760 | * val div | |
761 | * 0 - (invalid) | |
b1520857 AP |
762 | * 1 4 |
763 | * 2 6 | |
764 | * 3 8 | |
765 | * 4 10 | |
766 | * 5 12 | |
767 | * 6 14 | |
768 | * 7 16 | |
769 | * | |
770 | * VCO 202000000 - 720000000++ | |
977e444f | 771 | */ |
c5a431d0 | 772 | reg3 = 0x01000303; |
22ca680e | 773 | reg4 = 0x00000004; |
977e444f | 774 | |
c5a431d0 AP |
775 | /* XXX: Filters? AGC? */ |
776 | if (f_sr < 6000000) | |
777 | reg3 |= 0x1 << 20; | |
778 | else if (f_sr < 7000000) | |
779 | reg3 |= 0x5 << 20; | |
780 | else if (f_sr < 8500000) | |
781 | reg3 |= 0x9 << 20; | |
782 | else | |
783 | reg3 |= 0xd << 20; | |
784 | ||
b1520857 AP |
785 | for (div_r_out = 4; div_r_out < 16; div_r_out += 2) { |
786 | f_vco = f_sr * div_r_out * 12; | |
787 | dev_dbg(&s->udev->dev, "%s: div_r_out=%d f_vco=%d\n", | |
788 | __func__, div_r_out, f_vco); | |
789 | if (f_vco >= 202000000) | |
977e444f AP |
790 | break; |
791 | } | |
792 | ||
b1520857 AP |
793 | div_n = f_vco / (F_REF * DIV_R_IN); |
794 | div_m = f_vco % (F_REF * DIV_R_IN); | |
22ca680e | 795 | fract = 0x200000ul * div_m / (F_REF * DIV_R_IN); |
977e444f | 796 | |
b1520857 AP |
797 | reg3 |= div_n << 16; |
798 | reg3 |= (div_r_out / 2 - 1) << 10; | |
22ca680e AP |
799 | reg3 |= ((fract >> 20) & 0x000001) << 15; /* [20] */ |
800 | reg4 |= ((fract >> 0) & 0x0fffff) << 8; /* [19:0] */ | |
977e444f | 801 | |
b1520857 | 802 | dev_dbg(&s->udev->dev, |
22ca680e | 803 | "%s: f_sr=%d f_vco=%d div_n=%d div_m=%d div_r_out=%d reg3=%08x reg4=%08x\n", |
c08de62f AP |
804 | __func__, f_sr, f_vco, div_n, div_m, div_r_out, reg3, |
805 | reg4); | |
977e444f | 806 | |
06ce32cb | 807 | ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00608008); |
977e444f AP |
808 | if (ret) |
809 | goto err; | |
810 | ||
06ce32cb | 811 | ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00000c05); |
977e444f AP |
812 | if (ret) |
813 | goto err; | |
814 | ||
06ce32cb | 815 | ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00020000); |
977e444f AP |
816 | if (ret) |
817 | goto err; | |
818 | ||
06ce32cb | 819 | ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00480102); |
977e444f AP |
820 | if (ret) |
821 | goto err; | |
822 | ||
06ce32cb | 823 | ret = msi2500_ctrl_msg(s, CMD_WREG, 0x00f38008); |
977e444f AP |
824 | if (ret) |
825 | goto err; | |
826 | ||
06ce32cb | 827 | ret = msi2500_ctrl_msg(s, CMD_WREG, reg7); |
977e444f AP |
828 | if (ret) |
829 | goto err; | |
830 | ||
06ce32cb | 831 | ret = msi2500_ctrl_msg(s, CMD_WREG, reg4); |
977e444f AP |
832 | if (ret) |
833 | goto err; | |
834 | ||
06ce32cb | 835 | ret = msi2500_ctrl_msg(s, CMD_WREG, reg3); |
977e444f AP |
836 | if (ret) |
837 | goto err; | |
838 | err: | |
839 | return ret; | |
840 | }; | |
841 | ||
06ce32cb | 842 | static int msi2500_start_streaming(struct vb2_queue *vq, unsigned int count) |
977e444f | 843 | { |
06ce32cb | 844 | struct msi2500_state *s = vb2_get_drv_priv(vq); |
977e444f | 845 | int ret; |
c08de62f | 846 | |
977e444f AP |
847 | dev_dbg(&s->udev->dev, "%s:\n", __func__); |
848 | ||
849 | if (!s->udev) | |
850 | return -ENODEV; | |
851 | ||
852 | if (mutex_lock_interruptible(&s->v4l2_lock)) | |
853 | return -ERESTARTSYS; | |
854 | ||
2e68f841 AP |
855 | /* wake-up tuner */ |
856 | v4l2_subdev_call(s->v4l2_subdev, core, s_power, 1); | |
857 | ||
06ce32cb | 858 | ret = msi2500_set_usb_adc(s); |
977e444f | 859 | |
06ce32cb | 860 | ret = msi2500_isoc_init(s); |
977e444f | 861 | if (ret) |
06ce32cb | 862 | msi2500_cleanup_queued_bufs(s); |
977e444f | 863 | |
06ce32cb | 864 | ret = msi2500_ctrl_msg(s, CMD_START_STREAMING, 0); |
977e444f AP |
865 | |
866 | mutex_unlock(&s->v4l2_lock); | |
867 | ||
868 | return ret; | |
869 | } | |
870 | ||
06ce32cb | 871 | static void msi2500_stop_streaming(struct vb2_queue *vq) |
977e444f | 872 | { |
06ce32cb | 873 | struct msi2500_state *s = vb2_get_drv_priv(vq); |
e37559b2 | 874 | |
977e444f AP |
875 | dev_dbg(&s->udev->dev, "%s:\n", __func__); |
876 | ||
e37559b2 | 877 | mutex_lock(&s->v4l2_lock); |
977e444f | 878 | |
977e444f | 879 | if (s->udev) |
06ce32cb | 880 | msi2500_isoc_cleanup(s); |
977e444f | 881 | |
06ce32cb | 882 | msi2500_cleanup_queued_bufs(s); |
d0fadf40 AP |
883 | |
884 | /* according to tests, at least 700us delay is required */ | |
885 | msleep(20); | |
06ce32cb | 886 | if (!msi2500_ctrl_msg(s, CMD_STOP_STREAMING, 0)) { |
e37559b2 | 887 | /* sleep USB IF / ADC */ |
06ce32cb | 888 | msi2500_ctrl_msg(s, CMD_WREG, 0x01000003); |
e37559b2 | 889 | } |
3d0c8fa3 AP |
890 | |
891 | /* sleep tuner */ | |
e37559b2 | 892 | v4l2_subdev_call(s->v4l2_subdev, core, s_power, 0); |
3d0c8fa3 | 893 | |
977e444f | 894 | mutex_unlock(&s->v4l2_lock); |
977e444f AP |
895 | } |
896 | ||
06ce32cb AP |
897 | static struct vb2_ops msi2500_vb2_ops = { |
898 | .queue_setup = msi2500_queue_setup, | |
899 | .buf_queue = msi2500_buf_queue, | |
900 | .start_streaming = msi2500_start_streaming, | |
901 | .stop_streaming = msi2500_stop_streaming, | |
977e444f AP |
902 | .wait_prepare = vb2_ops_wait_prepare, |
903 | .wait_finish = vb2_ops_wait_finish, | |
904 | }; | |
905 | ||
06ce32cb | 906 | static int msi2500_enum_fmt_sdr_cap(struct file *file, void *priv, |
3d0c8fa3 | 907 | struct v4l2_fmtdesc *f) |
977e444f | 908 | { |
06ce32cb | 909 | struct msi2500_state *s = video_drvdata(file); |
c08de62f | 910 | |
3d0c8fa3 AP |
911 | dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, f->index); |
912 | ||
3912eb6d | 913 | if (f->index >= s->num_formats) |
977e444f AP |
914 | return -EINVAL; |
915 | ||
3d0c8fa3 AP |
916 | strlcpy(f->description, formats[f->index].name, sizeof(f->description)); |
917 | f->pixelformat = formats[f->index].pixelformat; | |
918 | ||
919 | return 0; | |
920 | } | |
921 | ||
06ce32cb | 922 | static int msi2500_g_fmt_sdr_cap(struct file *file, void *priv, |
3d0c8fa3 AP |
923 | struct v4l2_format *f) |
924 | { | |
06ce32cb | 925 | struct msi2500_state *s = video_drvdata(file); |
c08de62f | 926 | |
3d0c8fa3 AP |
927 | dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, |
928 | (char *)&s->pixelformat); | |
929 | ||
930 | f->fmt.sdr.pixelformat = s->pixelformat; | |
a54e0fee AP |
931 | f->fmt.sdr.buffersize = s->buffersize; |
932 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); | |
977e444f AP |
933 | |
934 | return 0; | |
935 | } | |
936 | ||
06ce32cb | 937 | static int msi2500_s_fmt_sdr_cap(struct file *file, void *priv, |
3d0c8fa3 | 938 | struct v4l2_format *f) |
977e444f | 939 | { |
06ce32cb | 940 | struct msi2500_state *s = video_drvdata(file); |
3d0c8fa3 AP |
941 | struct vb2_queue *q = &s->vb_queue; |
942 | int i; | |
c08de62f | 943 | |
3d0c8fa3 AP |
944 | dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, |
945 | (char *)&f->fmt.sdr.pixelformat); | |
946 | ||
947 | if (vb2_is_busy(q)) | |
948 | return -EBUSY; | |
949 | ||
c350912c | 950 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
3912eb6d | 951 | for (i = 0; i < s->num_formats; i++) { |
3d0c8fa3 | 952 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
a54e0fee AP |
953 | s->pixelformat = formats[i].pixelformat; |
954 | s->buffersize = formats[i].buffersize; | |
955 | f->fmt.sdr.buffersize = formats[i].buffersize; | |
3d0c8fa3 AP |
956 | return 0; |
957 | } | |
958 | } | |
959 | ||
3d0c8fa3 | 960 | s->pixelformat = formats[0].pixelformat; |
a54e0fee AP |
961 | s->buffersize = formats[0].buffersize; |
962 | f->fmt.sdr.pixelformat = formats[0].pixelformat; | |
963 | f->fmt.sdr.buffersize = formats[0].buffersize; | |
977e444f AP |
964 | |
965 | return 0; | |
966 | } | |
967 | ||
06ce32cb | 968 | static int msi2500_try_fmt_sdr_cap(struct file *file, void *priv, |
3d0c8fa3 | 969 | struct v4l2_format *f) |
977e444f | 970 | { |
06ce32cb | 971 | struct msi2500_state *s = video_drvdata(file); |
3d0c8fa3 | 972 | int i; |
c08de62f | 973 | |
3d0c8fa3 AP |
974 | dev_dbg(&s->udev->dev, "%s: pixelformat fourcc %4.4s\n", __func__, |
975 | (char *)&f->fmt.sdr.pixelformat); | |
976 | ||
c350912c | 977 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
3912eb6d | 978 | for (i = 0; i < s->num_formats; i++) { |
a54e0fee AP |
979 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
980 | f->fmt.sdr.buffersize = formats[i].buffersize; | |
3d0c8fa3 | 981 | return 0; |
a54e0fee | 982 | } |
3d0c8fa3 AP |
983 | } |
984 | ||
985 | f->fmt.sdr.pixelformat = formats[0].pixelformat; | |
a54e0fee | 986 | f->fmt.sdr.buffersize = formats[0].buffersize; |
3d0c8fa3 AP |
987 | |
988 | return 0; | |
977e444f AP |
989 | } |
990 | ||
06ce32cb | 991 | static int msi2500_s_tuner(struct file *file, void *priv, |
977e444f AP |
992 | const struct v4l2_tuner *v) |
993 | { | |
06ce32cb | 994 | struct msi2500_state *s = video_drvdata(file); |
2e68f841 | 995 | int ret; |
c08de62f | 996 | |
2e68f841 | 997 | dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index); |
977e444f | 998 | |
2e68f841 AP |
999 | if (v->index == 0) |
1000 | ret = 0; | |
1001 | else if (v->index == 1) | |
1002 | ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_tuner, v); | |
1003 | else | |
1004 | ret = -EINVAL; | |
1005 | ||
1006 | return ret; | |
977e444f AP |
1007 | } |
1008 | ||
06ce32cb | 1009 | static int msi2500_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) |
977e444f | 1010 | { |
06ce32cb | 1011 | struct msi2500_state *s = video_drvdata(file); |
2e68f841 | 1012 | int ret; |
c08de62f | 1013 | |
2e68f841 | 1014 | dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index); |
977e444f | 1015 | |
3d0c8fa3 | 1016 | if (v->index == 0) { |
2e68f841 | 1017 | strlcpy(v->name, "Mirics MSi2500", sizeof(v->name)); |
3d0c8fa3 AP |
1018 | v->type = V4L2_TUNER_ADC; |
1019 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
1020 | v->rangelow = 1200000; | |
1021 | v->rangehigh = 15000000; | |
2e68f841 | 1022 | ret = 0; |
3d0c8fa3 | 1023 | } else if (v->index == 1) { |
2e68f841 | 1024 | ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_tuner, v); |
3d0c8fa3 | 1025 | } else { |
2e68f841 | 1026 | ret = -EINVAL; |
3d0c8fa3 | 1027 | } |
977e444f | 1028 | |
2e68f841 | 1029 | return ret; |
977e444f | 1030 | } |
977e444f | 1031 | |
06ce32cb | 1032 | static int msi2500_g_frequency(struct file *file, void *priv, |
3d0c8fa3 AP |
1033 | struct v4l2_frequency *f) |
1034 | { | |
06ce32cb | 1035 | struct msi2500_state *s = video_drvdata(file); |
3d0c8fa3 | 1036 | int ret = 0; |
c08de62f | 1037 | |
3d0c8fa3 AP |
1038 | dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d\n", |
1039 | __func__, f->tuner, f->type); | |
1040 | ||
2e68f841 | 1041 | if (f->tuner == 0) { |
3d0c8fa3 | 1042 | f->frequency = s->f_adc; |
2e68f841 AP |
1043 | ret = 0; |
1044 | } else if (f->tuner == 1) { | |
c350912c | 1045 | f->type = V4L2_TUNER_RF; |
2e68f841 AP |
1046 | ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_frequency, f); |
1047 | } else { | |
1048 | ret = -EINVAL; | |
1049 | } | |
3d0c8fa3 AP |
1050 | |
1051 | return ret; | |
977e444f AP |
1052 | } |
1053 | ||
06ce32cb | 1054 | static int msi2500_s_frequency(struct file *file, void *priv, |
977e444f AP |
1055 | const struct v4l2_frequency *f) |
1056 | { | |
06ce32cb | 1057 | struct msi2500_state *s = video_drvdata(file); |
2e68f841 | 1058 | int ret; |
c08de62f | 1059 | |
3d0c8fa3 AP |
1060 | dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d frequency=%u\n", |
1061 | __func__, f->tuner, f->type, f->frequency); | |
1062 | ||
1063 | if (f->tuner == 0) { | |
1064 | s->f_adc = clamp_t(unsigned int, f->frequency, | |
2e68f841 AP |
1065 | bands[0].rangelow, |
1066 | bands[0].rangehigh); | |
3d0c8fa3 AP |
1067 | dev_dbg(&s->udev->dev, "%s: ADC frequency=%u Hz\n", |
1068 | __func__, s->f_adc); | |
06ce32cb | 1069 | ret = msi2500_set_usb_adc(s); |
3d0c8fa3 | 1070 | } else if (f->tuner == 1) { |
2e68f841 | 1071 | ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_frequency, f); |
3d0c8fa3 | 1072 | } else { |
2e68f841 | 1073 | ret = -EINVAL; |
3d0c8fa3 | 1074 | } |
977e444f | 1075 | |
3d0c8fa3 AP |
1076 | return ret; |
1077 | } | |
1078 | ||
06ce32cb | 1079 | static int msi2500_enum_freq_bands(struct file *file, void *priv, |
3d0c8fa3 AP |
1080 | struct v4l2_frequency_band *band) |
1081 | { | |
06ce32cb | 1082 | struct msi2500_state *s = video_drvdata(file); |
2e68f841 | 1083 | int ret; |
c08de62f | 1084 | |
3d0c8fa3 AP |
1085 | dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d index=%d\n", |
1086 | __func__, band->tuner, band->type, band->index); | |
1087 | ||
1088 | if (band->tuner == 0) { | |
2e68f841 AP |
1089 | if (band->index >= ARRAY_SIZE(bands)) { |
1090 | ret = -EINVAL; | |
1091 | } else { | |
1092 | *band = bands[band->index]; | |
1093 | ret = 0; | |
1094 | } | |
3d0c8fa3 | 1095 | } else if (band->tuner == 1) { |
2e68f841 AP |
1096 | ret = v4l2_subdev_call(s->v4l2_subdev, tuner, |
1097 | enum_freq_bands, band); | |
3d0c8fa3 | 1098 | } else { |
2e68f841 | 1099 | ret = -EINVAL; |
3d0c8fa3 AP |
1100 | } |
1101 | ||
2e68f841 | 1102 | return ret; |
977e444f AP |
1103 | } |
1104 | ||
06ce32cb AP |
1105 | static const struct v4l2_ioctl_ops msi2500_ioctl_ops = { |
1106 | .vidioc_querycap = msi2500_querycap, | |
977e444f | 1107 | |
06ce32cb AP |
1108 | .vidioc_enum_fmt_sdr_cap = msi2500_enum_fmt_sdr_cap, |
1109 | .vidioc_g_fmt_sdr_cap = msi2500_g_fmt_sdr_cap, | |
1110 | .vidioc_s_fmt_sdr_cap = msi2500_s_fmt_sdr_cap, | |
1111 | .vidioc_try_fmt_sdr_cap = msi2500_try_fmt_sdr_cap, | |
977e444f AP |
1112 | |
1113 | .vidioc_reqbufs = vb2_ioctl_reqbufs, | |
1114 | .vidioc_create_bufs = vb2_ioctl_create_bufs, | |
1115 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
1116 | .vidioc_querybuf = vb2_ioctl_querybuf, | |
1117 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
1118 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
1119 | ||
1120 | .vidioc_streamon = vb2_ioctl_streamon, | |
1121 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
1122 | ||
06ce32cb AP |
1123 | .vidioc_g_tuner = msi2500_g_tuner, |
1124 | .vidioc_s_tuner = msi2500_s_tuner, | |
3d0c8fa3 | 1125 | |
06ce32cb AP |
1126 | .vidioc_g_frequency = msi2500_g_frequency, |
1127 | .vidioc_s_frequency = msi2500_s_frequency, | |
1128 | .vidioc_enum_freq_bands = msi2500_enum_freq_bands, | |
977e444f AP |
1129 | |
1130 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1131 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
1132 | .vidioc_log_status = v4l2_ctrl_log_status, | |
1133 | }; | |
1134 | ||
06ce32cb | 1135 | static const struct v4l2_file_operations msi2500_fops = { |
977e444f AP |
1136 | .owner = THIS_MODULE, |
1137 | .open = v4l2_fh_open, | |
1138 | .release = vb2_fop_release, | |
1139 | .read = vb2_fop_read, | |
1140 | .poll = vb2_fop_poll, | |
1141 | .mmap = vb2_fop_mmap, | |
1142 | .unlocked_ioctl = video_ioctl2, | |
1143 | }; | |
1144 | ||
06ce32cb | 1145 | static struct video_device msi2500_template = { |
977e444f AP |
1146 | .name = "Mirics MSi3101 SDR Dongle", |
1147 | .release = video_device_release_empty, | |
06ce32cb AP |
1148 | .fops = &msi2500_fops, |
1149 | .ioctl_ops = &msi2500_ioctl_ops, | |
977e444f AP |
1150 | }; |
1151 | ||
06ce32cb | 1152 | static void msi2500_video_release(struct v4l2_device *v) |
977e444f | 1153 | { |
06ce32cb AP |
1154 | struct msi2500_state *s = |
1155 | container_of(v, struct msi2500_state, v4l2_dev); | |
977e444f | 1156 | |
3d0c8fa3 | 1157 | v4l2_ctrl_handler_free(&s->hdl); |
977e444f AP |
1158 | v4l2_device_unregister(&s->v4l2_dev); |
1159 | kfree(s); | |
1160 | } | |
1161 | ||
06ce32cb | 1162 | static int msi2500_transfer_one_message(struct spi_master *master, |
2e68f841 AP |
1163 | struct spi_message *m) |
1164 | { | |
06ce32cb | 1165 | struct msi2500_state *s = spi_master_get_devdata(master); |
2e68f841 AP |
1166 | struct spi_transfer *t; |
1167 | int ret = 0; | |
1168 | u32 data; | |
1169 | ||
1170 | list_for_each_entry(t, &m->transfers, transfer_list) { | |
1171 | dev_dbg(&s->udev->dev, "%s: msg=%*ph\n", | |
1172 | __func__, t->len, t->tx_buf); | |
1173 | data = 0x09; /* reg 9 is SPI adapter */ | |
1174 | data |= ((u8 *)t->tx_buf)[0] << 8; | |
1175 | data |= ((u8 *)t->tx_buf)[1] << 16; | |
1176 | data |= ((u8 *)t->tx_buf)[2] << 24; | |
06ce32cb | 1177 | ret = msi2500_ctrl_msg(s, CMD_WREG, data); |
2e68f841 AP |
1178 | } |
1179 | ||
1180 | m->status = ret; | |
1181 | spi_finalize_current_message(master); | |
1182 | return ret; | |
1183 | } | |
1184 | ||
06ce32cb | 1185 | static int msi2500_probe(struct usb_interface *intf, |
977e444f AP |
1186 | const struct usb_device_id *id) |
1187 | { | |
1188 | struct usb_device *udev = interface_to_usbdev(intf); | |
06ce32cb | 1189 | struct msi2500_state *s = NULL; |
2e68f841 AP |
1190 | struct v4l2_subdev *sd; |
1191 | struct spi_master *master; | |
977e444f | 1192 | int ret; |
2e68f841 AP |
1193 | static struct spi_board_info board_info = { |
1194 | .modalias = "msi001", | |
1195 | .bus_num = 0, | |
1196 | .chip_select = 0, | |
1197 | .max_speed_hz = 12000000, | |
977e444f AP |
1198 | }; |
1199 | ||
06ce32cb | 1200 | s = kzalloc(sizeof(struct msi2500_state), GFP_KERNEL); |
977e444f | 1201 | if (s == NULL) { |
06ce32cb | 1202 | pr_err("Could not allocate memory for msi2500_state\n"); |
977e444f AP |
1203 | return -ENOMEM; |
1204 | } | |
1205 | ||
1206 | mutex_init(&s->v4l2_lock); | |
1207 | mutex_init(&s->vb_queue_lock); | |
1208 | spin_lock_init(&s->queued_bufs_lock); | |
1209 | INIT_LIST_HEAD(&s->queued_bufs); | |
977e444f | 1210 | s->udev = udev; |
2e68f841 | 1211 | s->f_adc = bands[0].rangelow; |
3912eb6d | 1212 | s->pixelformat = formats[0].pixelformat; |
a54e0fee | 1213 | s->buffersize = formats[0].buffersize; |
3912eb6d | 1214 | s->num_formats = NUM_FORMATS; |
06ce32cb | 1215 | if (msi2500_emulated_fmt == false) |
3912eb6d | 1216 | s->num_formats -= 2; |
977e444f AP |
1217 | |
1218 | /* Init videobuf2 queue structure */ | |
3d0c8fa3 | 1219 | s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; |
977e444f AP |
1220 | s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; |
1221 | s->vb_queue.drv_priv = s; | |
06ce32cb AP |
1222 | s->vb_queue.buf_struct_size = sizeof(struct msi2500_frame_buf); |
1223 | s->vb_queue.ops = &msi2500_vb2_ops; | |
977e444f | 1224 | s->vb_queue.mem_ops = &vb2_vmalloc_memops; |
ade48681 | 1225 | s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
977e444f | 1226 | ret = vb2_queue_init(&s->vb_queue); |
3d0c8fa3 | 1227 | if (ret) { |
977e444f AP |
1228 | dev_err(&s->udev->dev, "Could not initialize vb2 queue\n"); |
1229 | goto err_free_mem; | |
1230 | } | |
1231 | ||
1232 | /* Init video_device structure */ | |
06ce32cb | 1233 | s->vdev = msi2500_template; |
977e444f AP |
1234 | s->vdev.queue = &s->vb_queue; |
1235 | s->vdev.queue->lock = &s->vb_queue_lock; | |
977e444f AP |
1236 | video_set_drvdata(&s->vdev, s); |
1237 | ||
977e444f | 1238 | /* Register the v4l2_device structure */ |
06ce32cb | 1239 | s->v4l2_dev.release = msi2500_video_release; |
977e444f AP |
1240 | ret = v4l2_device_register(&intf->dev, &s->v4l2_dev); |
1241 | if (ret) { | |
1242 | dev_err(&s->udev->dev, | |
1243 | "Failed to register v4l2-device (%d)\n", ret); | |
2e68f841 AP |
1244 | goto err_free_mem; |
1245 | } | |
1246 | ||
1247 | /* SPI master adapter */ | |
1248 | master = spi_alloc_master(&s->udev->dev, 0); | |
1249 | if (master == NULL) { | |
1250 | ret = -ENOMEM; | |
1251 | goto err_unregister_v4l2_dev; | |
1252 | } | |
1253 | ||
1254 | s->master = master; | |
1255 | master->bus_num = 0; | |
1256 | master->num_chipselect = 1; | |
06ce32cb | 1257 | master->transfer_one_message = msi2500_transfer_one_message; |
2e68f841 AP |
1258 | spi_master_set_devdata(master, s); |
1259 | ret = spi_register_master(master); | |
1260 | if (ret) { | |
1261 | spi_master_put(master); | |
1262 | goto err_unregister_v4l2_dev; | |
1263 | } | |
1264 | ||
1265 | /* load v4l2 subdevice */ | |
1266 | sd = v4l2_spi_new_subdev(&s->v4l2_dev, master, &board_info); | |
1267 | s->v4l2_subdev = sd; | |
1268 | if (sd == NULL) { | |
1269 | dev_err(&s->udev->dev, "cannot get v4l2 subdevice\n"); | |
1270 | ret = -ENODEV; | |
1271 | goto err_unregister_master; | |
1272 | } | |
1273 | ||
1274 | /* Register controls */ | |
1275 | v4l2_ctrl_handler_init(&s->hdl, 0); | |
1276 | if (s->hdl.error) { | |
1277 | ret = s->hdl.error; | |
1278 | dev_err(&s->udev->dev, "Could not initialize controls\n"); | |
977e444f AP |
1279 | goto err_free_controls; |
1280 | } | |
1281 | ||
2e68f841 AP |
1282 | /* currently all controls are from subdev */ |
1283 | v4l2_ctrl_add_handler(&s->hdl, sd->ctrl_handler, NULL); | |
1284 | ||
3d0c8fa3 | 1285 | s->v4l2_dev.ctrl_handler = &s->hdl; |
977e444f AP |
1286 | s->vdev.v4l2_dev = &s->v4l2_dev; |
1287 | s->vdev.lock = &s->v4l2_lock; | |
1288 | ||
3d0c8fa3 AP |
1289 | ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1); |
1290 | if (ret) { | |
977e444f AP |
1291 | dev_err(&s->udev->dev, |
1292 | "Failed to register as video device (%d)\n", | |
1293 | ret); | |
1294 | goto err_unregister_v4l2_dev; | |
1295 | } | |
1296 | dev_info(&s->udev->dev, "Registered as %s\n", | |
1297 | video_device_node_name(&s->vdev)); | |
c3359077 AP |
1298 | dev_notice(&s->udev->dev, |
1299 | "%s: SDR API is still slightly experimental and functionality changes may follow\n", | |
1300 | KBUILD_MODNAME); | |
977e444f AP |
1301 | |
1302 | return 0; | |
1303 | ||
977e444f | 1304 | err_free_controls: |
3d0c8fa3 | 1305 | v4l2_ctrl_handler_free(&s->hdl); |
2e68f841 AP |
1306 | err_unregister_master: |
1307 | spi_unregister_master(s->master); | |
977e444f AP |
1308 | err_unregister_v4l2_dev: |
1309 | v4l2_device_unregister(&s->v4l2_dev); | |
977e444f AP |
1310 | err_free_mem: |
1311 | kfree(s); | |
1312 | return ret; | |
1313 | } | |
1314 | ||
1315 | /* USB device ID list */ | |
06ce32cb | 1316 | static struct usb_device_id msi2500_id_table[] = { |
00e049b0 | 1317 | { USB_DEVICE(0x1df7, 0x2500) }, /* Mirics MSi3101 SDR Dongle */ |
42fc5b42 | 1318 | { USB_DEVICE(0x2040, 0xd300) }, /* Hauppauge WinTV 133559 LF */ |
977e444f AP |
1319 | { } |
1320 | }; | |
06ce32cb | 1321 | MODULE_DEVICE_TABLE(usb, msi2500_id_table); |
977e444f AP |
1322 | |
1323 | /* USB subsystem interface */ | |
06ce32cb | 1324 | static struct usb_driver msi2500_driver = { |
977e444f | 1325 | .name = KBUILD_MODNAME, |
06ce32cb AP |
1326 | .probe = msi2500_probe, |
1327 | .disconnect = msi2500_disconnect, | |
1328 | .id_table = msi2500_id_table, | |
977e444f AP |
1329 | }; |
1330 | ||
06ce32cb | 1331 | module_usb_driver(msi2500_driver); |
977e444f AP |
1332 | |
1333 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
1334 | MODULE_DESCRIPTION("Mirics MSi3101 SDR Dongle"); | |
1335 | MODULE_LICENSE("GPL"); |