]>
Commit | Line | Data |
---|---|---|
77113892 AP |
1 | /* |
2 | * Realtek RTL2832U SDR 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. | |
19 | * | |
20 | * GNU Radio plugin "gr-kernel" for device usage will be on: | |
21 | * http://git.linuxtv.org/anttip/gr-kernel.git | |
22 | * | |
23 | */ | |
24 | ||
77113892 AP |
25 | #include "rtl2832_sdr.h" |
26 | #include "dvb_usb.h" | |
27 | ||
28 | #include <media/v4l2-device.h> | |
29 | #include <media/v4l2-ioctl.h> | |
30 | #include <media/v4l2-ctrls.h> | |
31 | #include <media/v4l2-event.h> | |
2d700715 | 32 | #include <media/videobuf2-v4l2.h> |
77113892 AP |
33 | #include <media/videobuf2-vmalloc.h> |
34 | ||
63bdab5d | 35 | #include <linux/platform_device.h> |
77113892 AP |
36 | #include <linux/jiffies.h> |
37 | #include <linux/math64.h> | |
1cf79db2 | 38 | #include <linux/regmap.h> |
77113892 | 39 | |
2970c0d5 AP |
40 | static bool rtl2832_sdr_emulated_fmt; |
41 | module_param_named(emulated_formats, rtl2832_sdr_emulated_fmt, bool, 0644); | |
42 | MODULE_PARM_DESC(emulated_formats, "enable emulated formats (disappears in future)"); | |
43 | ||
fc3a0497 AP |
44 | /* Original macro does not contain enough null pointer checks for our need */ |
45 | #define V4L2_SUBDEV_HAS_OP(sd, o, f) \ | |
46 | ((sd) && (sd)->ops && (sd)->ops->o && (sd)->ops->o->f) | |
47 | ||
77113892 AP |
48 | #define MAX_BULK_BUFS (10) |
49 | #define BULK_BUFFER_SIZE (128 * 512) | |
50 | ||
51 | static const struct v4l2_frequency_band bands_adc[] = { | |
52 | { | |
53 | .tuner = 0, | |
54 | .type = V4L2_TUNER_ADC, | |
55 | .index = 0, | |
56 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
57 | .rangelow = 300000, | |
58 | .rangehigh = 300000, | |
59 | }, | |
60 | { | |
61 | .tuner = 0, | |
62 | .type = V4L2_TUNER_ADC, | |
63 | .index = 1, | |
64 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
65 | .rangelow = 900001, | |
66 | .rangehigh = 2800000, | |
67 | }, | |
68 | { | |
69 | .tuner = 0, | |
70 | .type = V4L2_TUNER_ADC, | |
71 | .index = 2, | |
72 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
73 | .rangelow = 3200000, | |
74 | .rangehigh = 3200000, | |
75 | }, | |
76 | }; | |
77 | ||
78 | static const struct v4l2_frequency_band bands_fm[] = { | |
79 | { | |
80 | .tuner = 1, | |
81 | .type = V4L2_TUNER_RF, | |
82 | .index = 0, | |
83 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
84 | .rangelow = 50000000, | |
85 | .rangehigh = 2000000000, | |
86 | }, | |
87 | }; | |
88 | ||
89 | /* stream formats */ | |
90 | struct rtl2832_sdr_format { | |
91 | char *name; | |
92 | u32 pixelformat; | |
d57fe404 | 93 | u32 buffersize; |
77113892 AP |
94 | }; |
95 | ||
96 | static struct rtl2832_sdr_format formats[] = { | |
97 | { | |
2970c0d5 | 98 | .name = "Complex U8", |
d57fe404 AP |
99 | .pixelformat = V4L2_SDR_FMT_CU8, |
100 | .buffersize = BULK_BUFFER_SIZE, | |
77113892 | 101 | }, { |
2970c0d5 | 102 | .name = "Complex U16LE (emulated)", |
77113892 | 103 | .pixelformat = V4L2_SDR_FMT_CU16LE, |
d57fe404 | 104 | .buffersize = BULK_BUFFER_SIZE * 2, |
77113892 AP |
105 | }, |
106 | }; | |
107 | ||
108 | static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); | |
109 | ||
110 | /* intermediate buffers with raw data from the USB device */ | |
111 | struct rtl2832_sdr_frame_buf { | |
2d700715 JS |
112 | /* common v4l buffer stuff -- must be first */ |
113 | struct vb2_v4l2_buffer vb; | |
77113892 AP |
114 | struct list_head list; |
115 | }; | |
116 | ||
725b7f30 | 117 | struct rtl2832_sdr_dev { |
e4d131d3 DC |
118 | #define POWER_ON 0 /* BIT(0) */ |
119 | #define URB_BUF 1 /* BIT(1) */ | |
77113892 AP |
120 | unsigned long flags; |
121 | ||
63bdab5d | 122 | struct platform_device *pdev; |
e01fc42d | 123 | struct regmap *regmap; |
77113892 AP |
124 | |
125 | struct video_device vdev; | |
126 | struct v4l2_device v4l2_dev; | |
fc3a0497 | 127 | struct v4l2_subdev *v4l2_subdev; |
77113892 AP |
128 | |
129 | /* videobuf2 queue and queued buffers list */ | |
130 | struct vb2_queue vb_queue; | |
131 | struct list_head queued_bufs; | |
132 | spinlock_t queued_bufs_lock; /* Protects queued_bufs */ | |
bc908754 | 133 | unsigned sequence; /* buffer sequence counter */ |
77113892 AP |
134 | |
135 | /* Note if taking both locks v4l2_lock must always be locked first! */ | |
136 | struct mutex v4l2_lock; /* Protects everything else */ | |
137 | struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ | |
138 | ||
139 | /* Pointer to our usb_device, will be NULL after unplug */ | |
140 | struct usb_device *udev; /* Both mutexes most be hold when setting! */ | |
141 | ||
142 | unsigned int vb_full; /* vb is full and packets dropped */ | |
143 | ||
144 | struct urb *urb_list[MAX_BULK_BUFS]; | |
145 | int buf_num; | |
146 | unsigned long buf_size; | |
147 | u8 *buf_list[MAX_BULK_BUFS]; | |
148 | dma_addr_t dma_addr[MAX_BULK_BUFS]; | |
149 | int urbs_initialized; | |
150 | int urbs_submitted; | |
151 | ||
152 | unsigned int f_adc, f_tuner; | |
153 | u32 pixelformat; | |
d57fe404 | 154 | u32 buffersize; |
2970c0d5 | 155 | unsigned int num_formats; |
77113892 AP |
156 | |
157 | /* Controls */ | |
158 | struct v4l2_ctrl_handler hdl; | |
159 | struct v4l2_ctrl *bandwidth_auto; | |
160 | struct v4l2_ctrl *bandwidth; | |
161 | ||
162 | /* for sample rate calc */ | |
163 | unsigned int sample; | |
164 | unsigned int sample_measured; | |
165 | unsigned long jiffies_next; | |
166 | }; | |
167 | ||
77113892 AP |
168 | /* Private functions */ |
169 | static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf( | |
725b7f30 | 170 | struct rtl2832_sdr_dev *dev) |
77113892 | 171 | { |
abfc8d66 | 172 | unsigned long flags; |
77113892 AP |
173 | struct rtl2832_sdr_frame_buf *buf = NULL; |
174 | ||
725b7f30 AP |
175 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
176 | if (list_empty(&dev->queued_bufs)) | |
77113892 AP |
177 | goto leave; |
178 | ||
725b7f30 | 179 | buf = list_entry(dev->queued_bufs.next, |
77113892 AP |
180 | struct rtl2832_sdr_frame_buf, list); |
181 | list_del(&buf->list); | |
182 | leave: | |
725b7f30 | 183 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); |
77113892 AP |
184 | return buf; |
185 | } | |
186 | ||
725b7f30 | 187 | static unsigned int rtl2832_sdr_convert_stream(struct rtl2832_sdr_dev *dev, |
77113892 AP |
188 | void *dst, const u8 *src, unsigned int src_len) |
189 | { | |
e4e78693 | 190 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
191 | unsigned int dst_len; |
192 | ||
725b7f30 | 193 | if (dev->pixelformat == V4L2_SDR_FMT_CU8) { |
77113892 AP |
194 | /* native stream, no need to convert */ |
195 | memcpy(dst, src, src_len); | |
196 | dst_len = src_len; | |
725b7f30 | 197 | } else if (dev->pixelformat == V4L2_SDR_FMT_CU16LE) { |
77113892 AP |
198 | /* convert u8 to u16 */ |
199 | unsigned int i; | |
200 | u16 *u16dst = dst; | |
941a8204 | 201 | |
77113892 AP |
202 | for (i = 0; i < src_len; i++) |
203 | *u16dst++ = (src[i] << 8) | (src[i] >> 0); | |
204 | dst_len = 2 * src_len; | |
205 | } else { | |
206 | dst_len = 0; | |
207 | } | |
208 | ||
b538a8e8 | 209 | /* calculate sample rate and output it in 10 seconds intervals */ |
725b7f30 | 210 | if (unlikely(time_is_before_jiffies(dev->jiffies_next))) { |
b538a8e8 AP |
211 | #define MSECS 10000UL |
212 | unsigned int msecs = jiffies_to_msecs(jiffies - | |
725b7f30 AP |
213 | dev->jiffies_next + msecs_to_jiffies(MSECS)); |
214 | unsigned int samples = dev->sample - dev->sample_measured; | |
941a8204 | 215 | |
725b7f30 AP |
216 | dev->jiffies_next = jiffies + msecs_to_jiffies(MSECS); |
217 | dev->sample_measured = dev->sample; | |
e4e78693 AP |
218 | dev_dbg(&pdev->dev, |
219 | "slen=%u samples=%u msecs=%u sample rate=%lu\n", | |
220 | src_len, samples, msecs, samples * 1000UL / msecs); | |
77113892 AP |
221 | } |
222 | ||
223 | /* total number of I+Q pairs */ | |
725b7f30 | 224 | dev->sample += src_len / 2; |
77113892 AP |
225 | |
226 | return dst_len; | |
227 | } | |
228 | ||
229 | /* | |
230 | * This gets called for the bulk stream pipe. This is done in interrupt | |
231 | * time, so it has to be fast, not crash, and not stall. Neat. | |
232 | */ | |
233 | static void rtl2832_sdr_urb_complete(struct urb *urb) | |
234 | { | |
725b7f30 | 235 | struct rtl2832_sdr_dev *dev = urb->context; |
e4e78693 | 236 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
237 | struct rtl2832_sdr_frame_buf *fbuf; |
238 | ||
e4e78693 AP |
239 | dev_dbg_ratelimited(&pdev->dev, "status=%d length=%d/%d errors=%d\n", |
240 | urb->status, urb->actual_length, | |
241 | urb->transfer_buffer_length, urb->error_count); | |
77113892 AP |
242 | |
243 | switch (urb->status) { | |
244 | case 0: /* success */ | |
245 | case -ETIMEDOUT: /* NAK */ | |
246 | break; | |
247 | case -ECONNRESET: /* kill */ | |
248 | case -ENOENT: | |
249 | case -ESHUTDOWN: | |
250 | return; | |
251 | default: /* error */ | |
e4e78693 | 252 | dev_err_ratelimited(&pdev->dev, "urb failed=%d\n", urb->status); |
77113892 AP |
253 | break; |
254 | } | |
255 | ||
256 | if (likely(urb->actual_length > 0)) { | |
257 | void *ptr; | |
258 | unsigned int len; | |
259 | /* get free framebuffer */ | |
725b7f30 | 260 | fbuf = rtl2832_sdr_get_next_fill_buf(dev); |
77113892 | 261 | if (unlikely(fbuf == NULL)) { |
725b7f30 | 262 | dev->vb_full++; |
e4e78693 AP |
263 | dev_notice_ratelimited(&pdev->dev, |
264 | "videobuf is full, %d packets dropped\n", | |
265 | dev->vb_full); | |
77113892 AP |
266 | goto skip; |
267 | } | |
268 | ||
269 | /* fill framebuffer */ | |
2d700715 | 270 | ptr = vb2_plane_vaddr(&fbuf->vb.vb2_buf, 0); |
725b7f30 | 271 | len = rtl2832_sdr_convert_stream(dev, ptr, urb->transfer_buffer, |
77113892 | 272 | urb->actual_length); |
2d700715 | 273 | vb2_set_plane_payload(&fbuf->vb.vb2_buf, 0, len); |
d6dd645e | 274 | fbuf->vb.vb2_buf.timestamp = ktime_get_ns(); |
2d700715 JS |
275 | fbuf->vb.sequence = dev->sequence++; |
276 | vb2_buffer_done(&fbuf->vb.vb2_buf, VB2_BUF_STATE_DONE); | |
77113892 AP |
277 | } |
278 | skip: | |
279 | usb_submit_urb(urb, GFP_ATOMIC); | |
280 | } | |
281 | ||
725b7f30 | 282 | static int rtl2832_sdr_kill_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 283 | { |
e4e78693 | 284 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
285 | int i; |
286 | ||
725b7f30 | 287 | for (i = dev->urbs_submitted - 1; i >= 0; i--) { |
e4e78693 | 288 | dev_dbg(&pdev->dev, "kill urb=%d\n", i); |
77113892 | 289 | /* stop the URB */ |
725b7f30 | 290 | usb_kill_urb(dev->urb_list[i]); |
77113892 | 291 | } |
725b7f30 | 292 | dev->urbs_submitted = 0; |
77113892 AP |
293 | |
294 | return 0; | |
295 | } | |
296 | ||
725b7f30 | 297 | static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 298 | { |
e4e78693 | 299 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
300 | int i, ret; |
301 | ||
725b7f30 | 302 | for (i = 0; i < dev->urbs_initialized; i++) { |
e4e78693 | 303 | dev_dbg(&pdev->dev, "submit urb=%d\n", i); |
725b7f30 | 304 | ret = usb_submit_urb(dev->urb_list[i], GFP_ATOMIC); |
77113892 | 305 | if (ret) { |
e4e78693 AP |
306 | dev_err(&pdev->dev, |
307 | "Could not submit urb no. %d - get them all back\n", | |
308 | i); | |
725b7f30 | 309 | rtl2832_sdr_kill_urbs(dev); |
77113892 AP |
310 | return ret; |
311 | } | |
725b7f30 | 312 | dev->urbs_submitted++; |
77113892 AP |
313 | } |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
725b7f30 | 318 | static int rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 319 | { |
e4e78693 | 320 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 | 321 | |
e4d131d3 | 322 | if (test_bit(URB_BUF, &dev->flags)) { |
725b7f30 AP |
323 | while (dev->buf_num) { |
324 | dev->buf_num--; | |
e4e78693 | 325 | dev_dbg(&pdev->dev, "free buf=%d\n", dev->buf_num); |
725b7f30 AP |
326 | usb_free_coherent(dev->udev, dev->buf_size, |
327 | dev->buf_list[dev->buf_num], | |
328 | dev->dma_addr[dev->buf_num]); | |
77113892 AP |
329 | } |
330 | } | |
e4d131d3 | 331 | clear_bit(URB_BUF, &dev->flags); |
77113892 AP |
332 | |
333 | return 0; | |
334 | } | |
335 | ||
725b7f30 | 336 | static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 337 | { |
e4e78693 | 338 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 | 339 | |
725b7f30 AP |
340 | dev->buf_num = 0; |
341 | dev->buf_size = BULK_BUFFER_SIZE; | |
77113892 | 342 | |
e4e78693 AP |
343 | dev_dbg(&pdev->dev, "all in all I will use %u bytes for streaming\n", |
344 | MAX_BULK_BUFS * BULK_BUFFER_SIZE); | |
77113892 | 345 | |
725b7f30 AP |
346 | for (dev->buf_num = 0; dev->buf_num < MAX_BULK_BUFS; dev->buf_num++) { |
347 | dev->buf_list[dev->buf_num] = usb_alloc_coherent(dev->udev, | |
77113892 | 348 | BULK_BUFFER_SIZE, GFP_ATOMIC, |
725b7f30 AP |
349 | &dev->dma_addr[dev->buf_num]); |
350 | if (!dev->buf_list[dev->buf_num]) { | |
e4e78693 AP |
351 | dev_dbg(&pdev->dev, "alloc buf=%d failed\n", |
352 | dev->buf_num); | |
725b7f30 | 353 | rtl2832_sdr_free_stream_bufs(dev); |
77113892 AP |
354 | return -ENOMEM; |
355 | } | |
356 | ||
e4e78693 AP |
357 | dev_dbg(&pdev->dev, "alloc buf=%d %p (dma %llu)\n", |
358 | dev->buf_num, dev->buf_list[dev->buf_num], | |
359 | (long long)dev->dma_addr[dev->buf_num]); | |
e4d131d3 | 360 | set_bit(URB_BUF, &dev->flags); |
77113892 AP |
361 | } |
362 | ||
363 | return 0; | |
364 | } | |
365 | ||
725b7f30 | 366 | static int rtl2832_sdr_free_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 367 | { |
e4e78693 | 368 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
369 | int i; |
370 | ||
725b7f30 | 371 | rtl2832_sdr_kill_urbs(dev); |
77113892 | 372 | |
725b7f30 AP |
373 | for (i = dev->urbs_initialized - 1; i >= 0; i--) { |
374 | if (dev->urb_list[i]) { | |
e4e78693 | 375 | dev_dbg(&pdev->dev, "free urb=%d\n", i); |
77113892 | 376 | /* free the URBs */ |
725b7f30 | 377 | usb_free_urb(dev->urb_list[i]); |
77113892 AP |
378 | } |
379 | } | |
725b7f30 | 380 | dev->urbs_initialized = 0; |
77113892 AP |
381 | |
382 | return 0; | |
383 | } | |
384 | ||
725b7f30 | 385 | static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 386 | { |
e4e78693 | 387 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
388 | int i, j; |
389 | ||
390 | /* allocate the URBs */ | |
391 | for (i = 0; i < MAX_BULK_BUFS; i++) { | |
e4e78693 | 392 | dev_dbg(&pdev->dev, "alloc urb=%d\n", i); |
725b7f30 AP |
393 | dev->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC); |
394 | if (!dev->urb_list[i]) { | |
77113892 | 395 | for (j = 0; j < i; j++) |
725b7f30 | 396 | usb_free_urb(dev->urb_list[j]); |
77113892 AP |
397 | return -ENOMEM; |
398 | } | |
725b7f30 AP |
399 | usb_fill_bulk_urb(dev->urb_list[i], |
400 | dev->udev, | |
401 | usb_rcvbulkpipe(dev->udev, 0x81), | |
402 | dev->buf_list[i], | |
77113892 | 403 | BULK_BUFFER_SIZE, |
725b7f30 | 404 | rtl2832_sdr_urb_complete, dev); |
77113892 | 405 | |
725b7f30 AP |
406 | dev->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; |
407 | dev->urb_list[i]->transfer_dma = dev->dma_addr[i]; | |
408 | dev->urbs_initialized++; | |
77113892 AP |
409 | } |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
414 | /* Must be called with vb_queue_lock hold */ | |
725b7f30 | 415 | static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 416 | { |
e4e78693 | 417 | struct platform_device *pdev = dev->pdev; |
abfc8d66 | 418 | unsigned long flags; |
941a8204 | 419 | |
e4e78693 | 420 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 421 | |
725b7f30 AP |
422 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
423 | while (!list_empty(&dev->queued_bufs)) { | |
77113892 | 424 | struct rtl2832_sdr_frame_buf *buf; |
941a8204 | 425 | |
725b7f30 | 426 | buf = list_entry(dev->queued_bufs.next, |
77113892 AP |
427 | struct rtl2832_sdr_frame_buf, list); |
428 | list_del(&buf->list); | |
2d700715 | 429 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
77113892 | 430 | } |
725b7f30 | 431 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); |
77113892 AP |
432 | } |
433 | ||
77113892 AP |
434 | static int rtl2832_sdr_querycap(struct file *file, void *fh, |
435 | struct v4l2_capability *cap) | |
436 | { | |
725b7f30 | 437 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 438 | struct platform_device *pdev = dev->pdev; |
941a8204 | 439 | |
e4e78693 | 440 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
441 | |
442 | strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); | |
725b7f30 AP |
443 | strlcpy(cap->card, dev->vdev.name, sizeof(cap->card)); |
444 | usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); | |
77113892 AP |
445 | cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | |
446 | V4L2_CAP_READWRITE | V4L2_CAP_TUNER; | |
447 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
448 | return 0; | |
449 | } | |
450 | ||
451 | /* Videobuf2 operations */ | |
452 | static int rtl2832_sdr_queue_setup(struct vb2_queue *vq, | |
df9ecb0c | 453 | unsigned int *nbuffers, |
36c0f8b3 | 454 | unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) |
77113892 | 455 | { |
725b7f30 | 456 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 457 | struct platform_device *pdev = dev->pdev; |
941a8204 | 458 | |
e4e78693 | 459 | dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers); |
77113892 | 460 | |
bc908754 HV |
461 | /* Need at least 8 buffers */ |
462 | if (vq->num_buffers + *nbuffers < 8) | |
463 | *nbuffers = 8 - vq->num_buffers; | |
77113892 | 464 | *nplanes = 1; |
725b7f30 | 465 | sizes[0] = PAGE_ALIGN(dev->buffersize); |
e4e78693 | 466 | dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); |
77113892 AP |
467 | return 0; |
468 | } | |
469 | ||
470 | static int rtl2832_sdr_buf_prepare(struct vb2_buffer *vb) | |
471 | { | |
725b7f30 | 472 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
77113892 AP |
473 | |
474 | /* Don't allow queing new buffers after device disconnection */ | |
725b7f30 | 475 | if (!dev->udev) |
77113892 AP |
476 | return -ENODEV; |
477 | ||
478 | return 0; | |
479 | } | |
480 | ||
481 | static void rtl2832_sdr_buf_queue(struct vb2_buffer *vb) | |
482 | { | |
2d700715 | 483 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
725b7f30 | 484 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
77113892 | 485 | struct rtl2832_sdr_frame_buf *buf = |
2d700715 | 486 | container_of(vbuf, struct rtl2832_sdr_frame_buf, vb); |
abfc8d66 | 487 | unsigned long flags; |
77113892 AP |
488 | |
489 | /* Check the device has not disconnected between prep and queuing */ | |
725b7f30 | 490 | if (!dev->udev) { |
2d700715 | 491 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
77113892 AP |
492 | return; |
493 | } | |
494 | ||
725b7f30 AP |
495 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
496 | list_add_tail(&buf->list, &dev->queued_bufs); | |
497 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); | |
77113892 AP |
498 | } |
499 | ||
725b7f30 | 500 | static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev) |
77113892 | 501 | { |
63bdab5d AP |
502 | struct platform_device *pdev = dev->pdev; |
503 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
3bda2bf1 | 504 | struct dvb_frontend *fe = pdata->dvb_frontend; |
77113892 AP |
505 | int ret; |
506 | unsigned int f_sr, f_if; | |
507 | u8 buf[4], u8tmp1, u8tmp2; | |
508 | u64 u64tmp; | |
509 | u32 u32tmp; | |
941a8204 | 510 | |
e4e78693 | 511 | dev_dbg(&pdev->dev, "f_adc=%u\n", dev->f_adc); |
77113892 | 512 | |
725b7f30 | 513 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
514 | return 0; |
515 | ||
725b7f30 | 516 | if (dev->f_adc == 0) |
77113892 AP |
517 | return 0; |
518 | ||
725b7f30 | 519 | f_sr = dev->f_adc; |
77113892 | 520 | |
e01fc42d | 521 | ret = regmap_bulk_write(dev->regmap, 0x13e, "\x00\x00", 2); |
77113892 AP |
522 | if (ret) |
523 | goto err; | |
524 | ||
e01fc42d | 525 | ret = regmap_bulk_write(dev->regmap, 0x115, "\x00\x00\x00\x00", 4); |
77113892 AP |
526 | if (ret) |
527 | goto err; | |
528 | ||
529 | /* get IF from tuner */ | |
530 | if (fe->ops.tuner_ops.get_if_frequency) | |
531 | ret = fe->ops.tuner_ops.get_if_frequency(fe, &f_if); | |
532 | else | |
533 | ret = -EINVAL; | |
534 | ||
535 | if (ret) | |
536 | goto err; | |
537 | ||
538 | /* program IF */ | |
63bdab5d | 539 | u64tmp = f_if % pdata->clk; |
77113892 | 540 | u64tmp *= 0x400000; |
63bdab5d | 541 | u64tmp = div_u64(u64tmp, pdata->clk); |
77113892 AP |
542 | u64tmp = -u64tmp; |
543 | u32tmp = u64tmp & 0x3fffff; | |
544 | ||
e4e78693 | 545 | dev_dbg(&pdev->dev, "f_if=%u if_ctl=%08x\n", f_if, u32tmp); |
77113892 AP |
546 | |
547 | buf[0] = (u32tmp >> 16) & 0xff; | |
548 | buf[1] = (u32tmp >> 8) & 0xff; | |
549 | buf[2] = (u32tmp >> 0) & 0xff; | |
550 | ||
e01fc42d | 551 | ret = regmap_bulk_write(dev->regmap, 0x119, buf, 3); |
77113892 AP |
552 | if (ret) |
553 | goto err; | |
554 | ||
555 | /* BB / IF mode */ | |
556 | /* POR: 0x1b1=0x1f, 0x008=0x0d, 0x006=0x80 */ | |
557 | if (f_if) { | |
558 | u8tmp1 = 0x1a; /* disable Zero-IF */ | |
559 | u8tmp2 = 0x8d; /* enable ADC I */ | |
560 | } else { | |
561 | u8tmp1 = 0x1b; /* enable Zero-IF, DC, IQ */ | |
562 | u8tmp2 = 0xcd; /* enable ADC I, ADC Q */ | |
563 | } | |
564 | ||
e01fc42d | 565 | ret = regmap_write(dev->regmap, 0x1b1, u8tmp1); |
77113892 AP |
566 | if (ret) |
567 | goto err; | |
568 | ||
e01fc42d | 569 | ret = regmap_write(dev->regmap, 0x008, u8tmp2); |
77113892 AP |
570 | if (ret) |
571 | goto err; | |
572 | ||
e01fc42d | 573 | ret = regmap_write(dev->regmap, 0x006, 0x80); |
77113892 AP |
574 | if (ret) |
575 | goto err; | |
576 | ||
577 | /* program sampling rate (resampling down) */ | |
63bdab5d | 578 | u32tmp = div_u64(pdata->clk * 0x400000ULL, f_sr * 4U); |
77113892 AP |
579 | u32tmp <<= 2; |
580 | buf[0] = (u32tmp >> 24) & 0xff; | |
581 | buf[1] = (u32tmp >> 16) & 0xff; | |
582 | buf[2] = (u32tmp >> 8) & 0xff; | |
583 | buf[3] = (u32tmp >> 0) & 0xff; | |
e01fc42d | 584 | ret = regmap_bulk_write(dev->regmap, 0x19f, buf, 4); |
77113892 AP |
585 | if (ret) |
586 | goto err; | |
587 | ||
588 | /* low-pass filter */ | |
e01fc42d PR |
589 | ret = regmap_bulk_write(dev->regmap, 0x11c, |
590 | "\xca\xdc\xd7\xd8\xe0\xf2\x0e\x35\x06\x50\x9c\x0d\x71\x11\x14\x71\x74\x19\x41\xa5", | |
591 | 20); | |
77113892 AP |
592 | if (ret) |
593 | goto err; | |
594 | ||
e01fc42d | 595 | ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2); |
77113892 AP |
596 | if (ret) |
597 | goto err; | |
598 | ||
599 | /* mode */ | |
e01fc42d | 600 | ret = regmap_write(dev->regmap, 0x019, 0x05); |
77113892 AP |
601 | if (ret) |
602 | goto err; | |
603 | ||
e01fc42d PR |
604 | ret = regmap_bulk_write(dev->regmap, 0x01a, |
605 | "\x1b\x16\x0d\x06\x01\xff", 6); | |
77113892 AP |
606 | if (ret) |
607 | goto err; | |
608 | ||
609 | /* FSM */ | |
e01fc42d | 610 | ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\xf0\x0f", 3); |
77113892 AP |
611 | if (ret) |
612 | goto err; | |
613 | ||
614 | /* PID filter */ | |
e01fc42d | 615 | ret = regmap_write(dev->regmap, 0x061, 0x60); |
77113892 AP |
616 | if (ret) |
617 | goto err; | |
618 | ||
619 | /* used RF tuner based settings */ | |
63bdab5d AP |
620 | switch (pdata->tuner) { |
621 | case RTL2832_SDR_TUNER_E4000: | |
e01fc42d PR |
622 | ret = regmap_write(dev->regmap, 0x112, 0x5a); |
623 | ret = regmap_write(dev->regmap, 0x102, 0x40); | |
624 | ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
625 | ret = regmap_write(dev->regmap, 0x1c7, 0x30); | |
626 | ret = regmap_write(dev->regmap, 0x104, 0xd0); | |
627 | ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
628 | ret = regmap_write(dev->regmap, 0x1c8, 0x18); | |
629 | ret = regmap_write(dev->regmap, 0x106, 0x35); | |
630 | ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
631 | ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
632 | ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
633 | ret = regmap_write(dev->regmap, 0x107, 0x40); | |
634 | ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
635 | ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
636 | ret = regmap_write(dev->regmap, 0x108, 0x80); | |
637 | ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
638 | ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
639 | ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
640 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
641 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
642 | ret = regmap_write(dev->regmap, 0x011, 0xd4); | |
643 | ret = regmap_write(dev->regmap, 0x1e5, 0xf0); | |
644 | ret = regmap_write(dev->regmap, 0x1d9, 0x00); | |
645 | ret = regmap_write(dev->regmap, 0x1db, 0x00); | |
646 | ret = regmap_write(dev->regmap, 0x1dd, 0x14); | |
647 | ret = regmap_write(dev->regmap, 0x1de, 0xec); | |
648 | ret = regmap_write(dev->regmap, 0x1d8, 0x0c); | |
649 | ret = regmap_write(dev->regmap, 0x1e6, 0x02); | |
650 | ret = regmap_write(dev->regmap, 0x1d7, 0x09); | |
651 | ret = regmap_write(dev->regmap, 0x00d, 0x83); | |
652 | ret = regmap_write(dev->regmap, 0x010, 0x49); | |
653 | ret = regmap_write(dev->regmap, 0x00d, 0x87); | |
654 | ret = regmap_write(dev->regmap, 0x00d, 0x85); | |
655 | ret = regmap_write(dev->regmap, 0x013, 0x02); | |
77113892 | 656 | break; |
63bdab5d AP |
657 | case RTL2832_SDR_TUNER_FC0012: |
658 | case RTL2832_SDR_TUNER_FC0013: | |
e01fc42d PR |
659 | ret = regmap_write(dev->regmap, 0x112, 0x5a); |
660 | ret = regmap_write(dev->regmap, 0x102, 0x40); | |
661 | ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
662 | ret = regmap_write(dev->regmap, 0x1c7, 0x2c); | |
663 | ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
664 | ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
665 | ret = regmap_write(dev->regmap, 0x1c8, 0x16); | |
666 | ret = regmap_write(dev->regmap, 0x106, 0x35); | |
667 | ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
668 | ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
669 | ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
670 | ret = regmap_write(dev->regmap, 0x107, 0x40); | |
671 | ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
672 | ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
673 | ret = regmap_write(dev->regmap, 0x108, 0x80); | |
674 | ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
675 | ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
676 | ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
677 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
678 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
679 | ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xbf", 2); | |
680 | ret = regmap_write(dev->regmap, 0x1e5, 0xf0); | |
681 | ret = regmap_write(dev->regmap, 0x1d9, 0x00); | |
682 | ret = regmap_write(dev->regmap, 0x1db, 0x00); | |
683 | ret = regmap_write(dev->regmap, 0x1dd, 0x11); | |
684 | ret = regmap_write(dev->regmap, 0x1de, 0xef); | |
685 | ret = regmap_write(dev->regmap, 0x1d8, 0x0c); | |
686 | ret = regmap_write(dev->regmap, 0x1e6, 0x02); | |
687 | ret = regmap_write(dev->regmap, 0x1d7, 0x09); | |
77113892 | 688 | break; |
63bdab5d AP |
689 | case RTL2832_SDR_TUNER_R820T: |
690 | case RTL2832_SDR_TUNER_R828D: | |
e01fc42d PR |
691 | ret = regmap_write(dev->regmap, 0x112, 0x5a); |
692 | ret = regmap_write(dev->regmap, 0x102, 0x40); | |
693 | ret = regmap_write(dev->regmap, 0x115, 0x01); | |
694 | ret = regmap_write(dev->regmap, 0x103, 0x80); | |
695 | ret = regmap_write(dev->regmap, 0x1c7, 0x24); | |
696 | ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
697 | ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
698 | ret = regmap_write(dev->regmap, 0x1c8, 0x14); | |
699 | ret = regmap_write(dev->regmap, 0x106, 0x35); | |
700 | ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
701 | ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
702 | ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
703 | ret = regmap_write(dev->regmap, 0x107, 0x40); | |
704 | ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
705 | ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
706 | ret = regmap_write(dev->regmap, 0x108, 0x80); | |
707 | ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
708 | ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
709 | ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
710 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
711 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
712 | ret = regmap_write(dev->regmap, 0x011, 0xf4); | |
77113892 | 713 | break; |
fc3a0497 | 714 | case RTL2832_SDR_TUNER_FC2580: |
e01fc42d PR |
715 | ret = regmap_write(dev->regmap, 0x112, 0x39); |
716 | ret = regmap_write(dev->regmap, 0x102, 0x40); | |
717 | ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
718 | ret = regmap_write(dev->regmap, 0x1c7, 0x2c); | |
719 | ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
720 | ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
721 | ret = regmap_write(dev->regmap, 0x1c8, 0x16); | |
722 | ret = regmap_write(dev->regmap, 0x106, 0x35); | |
723 | ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
724 | ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
725 | ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
726 | ret = regmap_write(dev->regmap, 0x107, 0x40); | |
727 | ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
728 | ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
729 | ret = regmap_write(dev->regmap, 0x108, 0x80); | |
730 | ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
731 | ret = regmap_write(dev->regmap, 0x10a, 0x9c); | |
732 | ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
733 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
734 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
735 | ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xf4", 2); | |
fc3a0497 | 736 | break; |
77113892 | 737 | default: |
e4e78693 | 738 | dev_notice(&pdev->dev, "Unsupported tuner\n"); |
77113892 AP |
739 | } |
740 | ||
741 | /* software reset */ | |
e01fc42d | 742 | ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x04); |
77113892 AP |
743 | if (ret) |
744 | goto err; | |
745 | ||
e01fc42d | 746 | ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x00); |
77113892 AP |
747 | if (ret) |
748 | goto err; | |
749 | err: | |
750 | return ret; | |
751 | }; | |
752 | ||
725b7f30 | 753 | static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_dev *dev) |
77113892 | 754 | { |
e4e78693 | 755 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
756 | int ret; |
757 | ||
e4e78693 | 758 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
759 | |
760 | /* PID filter */ | |
e01fc42d | 761 | ret = regmap_write(dev->regmap, 0x061, 0xe0); |
77113892 AP |
762 | if (ret) |
763 | goto err; | |
764 | ||
765 | /* mode */ | |
e01fc42d | 766 | ret = regmap_write(dev->regmap, 0x019, 0x20); |
77113892 AP |
767 | if (ret) |
768 | goto err; | |
769 | ||
e01fc42d | 770 | ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2); |
77113892 AP |
771 | if (ret) |
772 | goto err; | |
773 | ||
774 | /* FSM */ | |
e01fc42d | 775 | ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\x0f\xff", 3); |
77113892 AP |
776 | if (ret) |
777 | goto err; | |
778 | ||
e01fc42d | 779 | ret = regmap_bulk_write(dev->regmap, 0x13e, "\x40\x00", 2); |
77113892 AP |
780 | if (ret) |
781 | goto err; | |
782 | ||
e01fc42d | 783 | ret = regmap_bulk_write(dev->regmap, 0x115, "\x06\x3f\xce\xcc", 4); |
77113892 AP |
784 | if (ret) |
785 | goto err; | |
786 | err: | |
787 | return; | |
788 | }; | |
789 | ||
725b7f30 | 790 | static int rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_dev *dev) |
77113892 | 791 | { |
e4e78693 | 792 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
793 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
794 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 AP |
795 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
796 | struct v4l2_ctrl *bandwidth_auto; | |
797 | struct v4l2_ctrl *bandwidth; | |
798 | ||
799 | /* | |
800 | * tuner RF (Hz) | |
801 | */ | |
725b7f30 | 802 | if (dev->f_tuner == 0) |
77113892 AP |
803 | return 0; |
804 | ||
805 | /* | |
806 | * bandwidth (Hz) | |
807 | */ | |
725b7f30 | 808 | bandwidth_auto = v4l2_ctrl_find(&dev->hdl, |
85594960 | 809 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); |
725b7f30 | 810 | bandwidth = v4l2_ctrl_find(&dev->hdl, V4L2_CID_RF_TUNER_BANDWIDTH); |
77113892 | 811 | if (v4l2_ctrl_g_ctrl(bandwidth_auto)) { |
725b7f30 AP |
812 | c->bandwidth_hz = dev->f_adc; |
813 | v4l2_ctrl_s_ctrl(bandwidth, dev->f_adc); | |
77113892 AP |
814 | } else { |
815 | c->bandwidth_hz = v4l2_ctrl_g_ctrl(bandwidth); | |
816 | } | |
817 | ||
725b7f30 | 818 | c->frequency = dev->f_tuner; |
77113892 AP |
819 | c->delivery_system = SYS_DVBT; |
820 | ||
e4e78693 AP |
821 | dev_dbg(&pdev->dev, "frequency=%u bandwidth=%d\n", |
822 | c->frequency, c->bandwidth_hz); | |
77113892 | 823 | |
725b7f30 | 824 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
825 | return 0; |
826 | ||
fc3a0497 AP |
827 | if (!V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) { |
828 | if (fe->ops.tuner_ops.set_params) | |
829 | fe->ops.tuner_ops.set_params(fe); | |
830 | } | |
77113892 AP |
831 | |
832 | return 0; | |
833 | }; | |
834 | ||
725b7f30 | 835 | static int rtl2832_sdr_set_tuner(struct rtl2832_sdr_dev *dev) |
77113892 | 836 | { |
e4e78693 | 837 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
838 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
839 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 | 840 | |
e4e78693 | 841 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
842 | |
843 | if (fe->ops.tuner_ops.init) | |
844 | fe->ops.tuner_ops.init(fe); | |
845 | ||
846 | return 0; | |
847 | }; | |
848 | ||
725b7f30 | 849 | static void rtl2832_sdr_unset_tuner(struct rtl2832_sdr_dev *dev) |
77113892 | 850 | { |
e4e78693 | 851 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
852 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
853 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 | 854 | |
e4e78693 | 855 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
856 | |
857 | if (fe->ops.tuner_ops.sleep) | |
858 | fe->ops.tuner_ops.sleep(fe); | |
859 | ||
860 | return; | |
861 | }; | |
862 | ||
863 | static int rtl2832_sdr_start_streaming(struct vb2_queue *vq, unsigned int count) | |
864 | { | |
725b7f30 | 865 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 866 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
867 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
868 | struct dvb_usb_device *d = pdata->dvb_usb_device; | |
77113892 | 869 | int ret; |
941a8204 | 870 | |
e4e78693 | 871 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 872 | |
725b7f30 | 873 | if (!dev->udev) |
77113892 AP |
874 | return -ENODEV; |
875 | ||
725b7f30 | 876 | if (mutex_lock_interruptible(&dev->v4l2_lock)) |
77113892 AP |
877 | return -ERESTARTSYS; |
878 | ||
3bda2bf1 AP |
879 | if (d->props->power_ctrl) |
880 | d->props->power_ctrl(d, 1); | |
77113892 | 881 | |
2281c824 | 882 | /* enable ADC */ |
3bda2bf1 AP |
883 | if (d->props->frontend_ctrl) |
884 | d->props->frontend_ctrl(pdata->dvb_frontend, 1); | |
2281c824 | 885 | |
725b7f30 | 886 | set_bit(POWER_ON, &dev->flags); |
77113892 | 887 | |
fc3a0497 AP |
888 | /* wake-up tuner */ |
889 | if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power)) | |
890 | ret = v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 1); | |
891 | else | |
892 | ret = rtl2832_sdr_set_tuner(dev); | |
77113892 AP |
893 | if (ret) |
894 | goto err; | |
895 | ||
725b7f30 | 896 | ret = rtl2832_sdr_set_tuner_freq(dev); |
77113892 AP |
897 | if (ret) |
898 | goto err; | |
899 | ||
725b7f30 | 900 | ret = rtl2832_sdr_set_adc(dev); |
77113892 AP |
901 | if (ret) |
902 | goto err; | |
903 | ||
725b7f30 | 904 | ret = rtl2832_sdr_alloc_stream_bufs(dev); |
77113892 AP |
905 | if (ret) |
906 | goto err; | |
907 | ||
725b7f30 | 908 | ret = rtl2832_sdr_alloc_urbs(dev); |
77113892 AP |
909 | if (ret) |
910 | goto err; | |
911 | ||
725b7f30 | 912 | dev->sequence = 0; |
bc908754 | 913 | |
725b7f30 | 914 | ret = rtl2832_sdr_submit_urbs(dev); |
77113892 AP |
915 | if (ret) |
916 | goto err; | |
917 | ||
918 | err: | |
725b7f30 | 919 | mutex_unlock(&dev->v4l2_lock); |
77113892 AP |
920 | |
921 | return ret; | |
922 | } | |
923 | ||
e37559b2 | 924 | static void rtl2832_sdr_stop_streaming(struct vb2_queue *vq) |
77113892 | 925 | { |
725b7f30 | 926 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 927 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
928 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
929 | struct dvb_usb_device *d = pdata->dvb_usb_device; | |
941a8204 | 930 | |
e4e78693 | 931 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 932 | |
725b7f30 | 933 | mutex_lock(&dev->v4l2_lock); |
77113892 | 934 | |
725b7f30 AP |
935 | rtl2832_sdr_kill_urbs(dev); |
936 | rtl2832_sdr_free_urbs(dev); | |
937 | rtl2832_sdr_free_stream_bufs(dev); | |
938 | rtl2832_sdr_cleanup_queued_bufs(dev); | |
939 | rtl2832_sdr_unset_adc(dev); | |
fc3a0497 AP |
940 | |
941 | /* sleep tuner */ | |
942 | if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power)) | |
943 | v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 0); | |
944 | else | |
945 | rtl2832_sdr_unset_tuner(dev); | |
77113892 | 946 | |
725b7f30 | 947 | clear_bit(POWER_ON, &dev->flags); |
2281c824 AP |
948 | |
949 | /* disable ADC */ | |
3bda2bf1 AP |
950 | if (d->props->frontend_ctrl) |
951 | d->props->frontend_ctrl(pdata->dvb_frontend, 0); | |
77113892 | 952 | |
3bda2bf1 AP |
953 | if (d->props->power_ctrl) |
954 | d->props->power_ctrl(d, 0); | |
77113892 | 955 | |
725b7f30 | 956 | mutex_unlock(&dev->v4l2_lock); |
77113892 AP |
957 | } |
958 | ||
959 | static struct vb2_ops rtl2832_sdr_vb2_ops = { | |
960 | .queue_setup = rtl2832_sdr_queue_setup, | |
961 | .buf_prepare = rtl2832_sdr_buf_prepare, | |
962 | .buf_queue = rtl2832_sdr_buf_queue, | |
963 | .start_streaming = rtl2832_sdr_start_streaming, | |
964 | .stop_streaming = rtl2832_sdr_stop_streaming, | |
965 | .wait_prepare = vb2_ops_wait_prepare, | |
966 | .wait_finish = vb2_ops_wait_finish, | |
967 | }; | |
968 | ||
969 | static int rtl2832_sdr_g_tuner(struct file *file, void *priv, | |
970 | struct v4l2_tuner *v) | |
971 | { | |
725b7f30 | 972 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 973 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 974 | int ret; |
941a8204 | 975 | |
e4e78693 | 976 | dev_dbg(&pdev->dev, "index=%d type=%d\n", v->index, v->type); |
77113892 AP |
977 | |
978 | if (v->index == 0) { | |
979 | strlcpy(v->name, "ADC: Realtek RTL2832", sizeof(v->name)); | |
980 | v->type = V4L2_TUNER_ADC; | |
981 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
982 | v->rangelow = 300000; | |
983 | v->rangehigh = 3200000; | |
fc3a0497 AP |
984 | ret = 0; |
985 | } else if (v->index == 1 && | |
986 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_tuner)) { | |
987 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_tuner, v); | |
77113892 AP |
988 | } else if (v->index == 1) { |
989 | strlcpy(v->name, "RF: <unknown>", sizeof(v->name)); | |
990 | v->type = V4L2_TUNER_RF; | |
991 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
992 | v->rangelow = 50000000; | |
993 | v->rangehigh = 2000000000; | |
fc3a0497 | 994 | ret = 0; |
77113892 | 995 | } else { |
fc3a0497 | 996 | ret = -EINVAL; |
77113892 | 997 | } |
fc3a0497 | 998 | return ret; |
77113892 AP |
999 | } |
1000 | ||
1001 | static int rtl2832_sdr_s_tuner(struct file *file, void *priv, | |
1002 | const struct v4l2_tuner *v) | |
1003 | { | |
725b7f30 | 1004 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1005 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 1006 | int ret; |
941a8204 | 1007 | |
e4e78693 | 1008 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 1009 | |
fc3a0497 AP |
1010 | if (v->index == 0) { |
1011 | ret = 0; | |
1012 | } else if (v->index == 1 && | |
1013 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_tuner)) { | |
1014 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_tuner, v); | |
1015 | } else if (v->index == 1) { | |
1016 | ret = 0; | |
1017 | } else { | |
1018 | ret = -EINVAL; | |
1019 | } | |
1020 | return ret; | |
77113892 AP |
1021 | } |
1022 | ||
1023 | static int rtl2832_sdr_enum_freq_bands(struct file *file, void *priv, | |
1024 | struct v4l2_frequency_band *band) | |
1025 | { | |
725b7f30 | 1026 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1027 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 1028 | int ret; |
941a8204 | 1029 | |
e4e78693 AP |
1030 | dev_dbg(&pdev->dev, "tuner=%d type=%d index=%d\n", |
1031 | band->tuner, band->type, band->index); | |
77113892 AP |
1032 | |
1033 | if (band->tuner == 0) { | |
1034 | if (band->index >= ARRAY_SIZE(bands_adc)) | |
1035 | return -EINVAL; | |
1036 | ||
1037 | *band = bands_adc[band->index]; | |
fc3a0497 AP |
1038 | ret = 0; |
1039 | } else if (band->tuner == 1 && | |
1040 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, enum_freq_bands)) { | |
1041 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, enum_freq_bands, band); | |
77113892 AP |
1042 | } else if (band->tuner == 1) { |
1043 | if (band->index >= ARRAY_SIZE(bands_fm)) | |
1044 | return -EINVAL; | |
1045 | ||
1046 | *band = bands_fm[band->index]; | |
fc3a0497 | 1047 | ret = 0; |
77113892 | 1048 | } else { |
fc3a0497 | 1049 | ret = -EINVAL; |
77113892 | 1050 | } |
fc3a0497 | 1051 | return ret; |
77113892 AP |
1052 | } |
1053 | ||
1054 | static int rtl2832_sdr_g_frequency(struct file *file, void *priv, | |
1055 | struct v4l2_frequency *f) | |
1056 | { | |
725b7f30 | 1057 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1058 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 1059 | int ret; |
941a8204 | 1060 | |
e4e78693 | 1061 | dev_dbg(&pdev->dev, "tuner=%d type=%d\n", f->tuner, f->type); |
77113892 | 1062 | |
bc908754 | 1063 | if (f->tuner == 0) { |
725b7f30 | 1064 | f->frequency = dev->f_adc; |
bc908754 | 1065 | f->type = V4L2_TUNER_ADC; |
fc3a0497 AP |
1066 | ret = 0; |
1067 | } else if (f->tuner == 1 && | |
1068 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_frequency)) { | |
1069 | f->type = V4L2_TUNER_RF; | |
1070 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_frequency, f); | |
bc908754 | 1071 | } else if (f->tuner == 1) { |
725b7f30 | 1072 | f->frequency = dev->f_tuner; |
bc908754 | 1073 | f->type = V4L2_TUNER_RF; |
fc3a0497 | 1074 | ret = 0; |
bc908754 | 1075 | } else { |
fc3a0497 | 1076 | ret = -EINVAL; |
bc908754 | 1077 | } |
77113892 AP |
1078 | return ret; |
1079 | } | |
1080 | ||
1081 | static int rtl2832_sdr_s_frequency(struct file *file, void *priv, | |
1082 | const struct v4l2_frequency *f) | |
1083 | { | |
725b7f30 | 1084 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1085 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
1086 | int ret, band; |
1087 | ||
e4e78693 AP |
1088 | dev_dbg(&pdev->dev, "tuner=%d type=%d frequency=%u\n", |
1089 | f->tuner, f->type, f->frequency); | |
77113892 AP |
1090 | |
1091 | /* ADC band midpoints */ | |
1092 | #define BAND_ADC_0 ((bands_adc[0].rangehigh + bands_adc[1].rangelow) / 2) | |
1093 | #define BAND_ADC_1 ((bands_adc[1].rangehigh + bands_adc[2].rangelow) / 2) | |
1094 | ||
1095 | if (f->tuner == 0 && f->type == V4L2_TUNER_ADC) { | |
1096 | if (f->frequency < BAND_ADC_0) | |
1097 | band = 0; | |
1098 | else if (f->frequency < BAND_ADC_1) | |
1099 | band = 1; | |
1100 | else | |
1101 | band = 2; | |
1102 | ||
725b7f30 | 1103 | dev->f_adc = clamp_t(unsigned int, f->frequency, |
fc3a0497 AP |
1104 | bands_adc[band].rangelow, |
1105 | bands_adc[band].rangehigh); | |
77113892 | 1106 | |
e4e78693 | 1107 | dev_dbg(&pdev->dev, "ADC frequency=%u Hz\n", dev->f_adc); |
725b7f30 | 1108 | ret = rtl2832_sdr_set_adc(dev); |
fc3a0497 AP |
1109 | } else if (f->tuner == 1 && |
1110 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) { | |
1111 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_frequency, f); | |
77113892 | 1112 | } else if (f->tuner == 1) { |
725b7f30 | 1113 | dev->f_tuner = clamp_t(unsigned int, f->frequency, |
bc908754 HV |
1114 | bands_fm[0].rangelow, |
1115 | bands_fm[0].rangehigh); | |
e4e78693 | 1116 | dev_dbg(&pdev->dev, "RF frequency=%u Hz\n", f->frequency); |
77113892 | 1117 | |
725b7f30 | 1118 | ret = rtl2832_sdr_set_tuner_freq(dev); |
77113892 AP |
1119 | } else { |
1120 | ret = -EINVAL; | |
1121 | } | |
77113892 AP |
1122 | return ret; |
1123 | } | |
1124 | ||
1125 | static int rtl2832_sdr_enum_fmt_sdr_cap(struct file *file, void *priv, | |
1126 | struct v4l2_fmtdesc *f) | |
1127 | { | |
725b7f30 | 1128 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1129 | struct platform_device *pdev = dev->pdev; |
941a8204 | 1130 | |
e4e78693 | 1131 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 1132 | |
725b7f30 | 1133 | if (f->index >= dev->num_formats) |
77113892 AP |
1134 | return -EINVAL; |
1135 | ||
1136 | strlcpy(f->description, formats[f->index].name, sizeof(f->description)); | |
1137 | f->pixelformat = formats[f->index].pixelformat; | |
1138 | ||
1139 | return 0; | |
1140 | } | |
1141 | ||
1142 | static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv, | |
1143 | struct v4l2_format *f) | |
1144 | { | |
725b7f30 | 1145 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1146 | struct platform_device *pdev = dev->pdev; |
941a8204 | 1147 | |
e4e78693 | 1148 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 1149 | |
725b7f30 AP |
1150 | f->fmt.sdr.pixelformat = dev->pixelformat; |
1151 | f->fmt.sdr.buffersize = dev->buffersize; | |
d57fe404 | 1152 | |
bc908754 | 1153 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
77113892 AP |
1154 | |
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | static int rtl2832_sdr_s_fmt_sdr_cap(struct file *file, void *priv, | |
1159 | struct v4l2_format *f) | |
1160 | { | |
725b7f30 | 1161 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1162 | struct platform_device *pdev = dev->pdev; |
725b7f30 | 1163 | struct vb2_queue *q = &dev->vb_queue; |
77113892 | 1164 | int i; |
941a8204 | 1165 | |
e4e78693 AP |
1166 | dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n", |
1167 | (char *)&f->fmt.sdr.pixelformat); | |
77113892 AP |
1168 | |
1169 | if (vb2_is_busy(q)) | |
1170 | return -EBUSY; | |
1171 | ||
bc908754 | 1172 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
725b7f30 | 1173 | for (i = 0; i < dev->num_formats; i++) { |
77113892 | 1174 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
725b7f30 AP |
1175 | dev->pixelformat = formats[i].pixelformat; |
1176 | dev->buffersize = formats[i].buffersize; | |
d57fe404 | 1177 | f->fmt.sdr.buffersize = formats[i].buffersize; |
77113892 AP |
1178 | return 0; |
1179 | } | |
1180 | } | |
1181 | ||
725b7f30 AP |
1182 | dev->pixelformat = formats[0].pixelformat; |
1183 | dev->buffersize = formats[0].buffersize; | |
d57fe404 AP |
1184 | f->fmt.sdr.pixelformat = formats[0].pixelformat; |
1185 | f->fmt.sdr.buffersize = formats[0].buffersize; | |
77113892 AP |
1186 | |
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv, | |
1191 | struct v4l2_format *f) | |
1192 | { | |
725b7f30 | 1193 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1194 | struct platform_device *pdev = dev->pdev; |
77113892 | 1195 | int i; |
941a8204 | 1196 | |
e4e78693 AP |
1197 | dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n", |
1198 | (char *)&f->fmt.sdr.pixelformat); | |
77113892 | 1199 | |
bc908754 | 1200 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
725b7f30 | 1201 | for (i = 0; i < dev->num_formats; i++) { |
d57fe404 AP |
1202 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
1203 | f->fmt.sdr.buffersize = formats[i].buffersize; | |
77113892 | 1204 | return 0; |
d57fe404 | 1205 | } |
77113892 AP |
1206 | } |
1207 | ||
1208 | f->fmt.sdr.pixelformat = formats[0].pixelformat; | |
d57fe404 | 1209 | f->fmt.sdr.buffersize = formats[0].buffersize; |
77113892 AP |
1210 | |
1211 | return 0; | |
1212 | } | |
1213 | ||
1214 | static const struct v4l2_ioctl_ops rtl2832_sdr_ioctl_ops = { | |
1215 | .vidioc_querycap = rtl2832_sdr_querycap, | |
1216 | ||
1217 | .vidioc_enum_fmt_sdr_cap = rtl2832_sdr_enum_fmt_sdr_cap, | |
1218 | .vidioc_g_fmt_sdr_cap = rtl2832_sdr_g_fmt_sdr_cap, | |
1219 | .vidioc_s_fmt_sdr_cap = rtl2832_sdr_s_fmt_sdr_cap, | |
1220 | .vidioc_try_fmt_sdr_cap = rtl2832_sdr_try_fmt_sdr_cap, | |
1221 | ||
1222 | .vidioc_reqbufs = vb2_ioctl_reqbufs, | |
1223 | .vidioc_create_bufs = vb2_ioctl_create_bufs, | |
1224 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
1225 | .vidioc_querybuf = vb2_ioctl_querybuf, | |
1226 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
1227 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
1228 | ||
1229 | .vidioc_streamon = vb2_ioctl_streamon, | |
1230 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
1231 | ||
1232 | .vidioc_g_tuner = rtl2832_sdr_g_tuner, | |
1233 | .vidioc_s_tuner = rtl2832_sdr_s_tuner, | |
1234 | ||
1235 | .vidioc_enum_freq_bands = rtl2832_sdr_enum_freq_bands, | |
1236 | .vidioc_g_frequency = rtl2832_sdr_g_frequency, | |
1237 | .vidioc_s_frequency = rtl2832_sdr_s_frequency, | |
1238 | ||
1239 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1240 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
1241 | .vidioc_log_status = v4l2_ctrl_log_status, | |
1242 | }; | |
1243 | ||
1244 | static const struct v4l2_file_operations rtl2832_sdr_fops = { | |
1245 | .owner = THIS_MODULE, | |
1246 | .open = v4l2_fh_open, | |
1247 | .release = vb2_fop_release, | |
1248 | .read = vb2_fop_read, | |
1249 | .poll = vb2_fop_poll, | |
1250 | .mmap = vb2_fop_mmap, | |
1251 | .unlocked_ioctl = video_ioctl2, | |
1252 | }; | |
1253 | ||
1254 | static struct video_device rtl2832_sdr_template = { | |
1255 | .name = "Realtek RTL2832 SDR", | |
1256 | .release = video_device_release_empty, | |
1257 | .fops = &rtl2832_sdr_fops, | |
1258 | .ioctl_ops = &rtl2832_sdr_ioctl_ops, | |
1259 | }; | |
1260 | ||
1261 | static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl) | |
1262 | { | |
725b7f30 AP |
1263 | struct rtl2832_sdr_dev *dev = |
1264 | container_of(ctrl->handler, struct rtl2832_sdr_dev, | |
77113892 | 1265 | hdl); |
e4e78693 | 1266 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
1267 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
1268 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 AP |
1269 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1270 | int ret; | |
941a8204 | 1271 | |
e4e78693 AP |
1272 | dev_dbg(&pdev->dev, "id=%d name=%s val=%d min=%lld max=%lld step=%lld\n", |
1273 | ctrl->id, ctrl->name, ctrl->val, ctrl->minimum, ctrl->maximum, | |
1274 | ctrl->step); | |
77113892 AP |
1275 | |
1276 | switch (ctrl->id) { | |
1277 | case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: | |
1278 | case V4L2_CID_RF_TUNER_BANDWIDTH: | |
ea4d04f9 | 1279 | /* TODO: these controls should be moved to tuner drivers */ |
725b7f30 | 1280 | if (dev->bandwidth_auto->val) { |
ea4d04f9 | 1281 | /* Round towards the closest legal value */ |
725b7f30 | 1282 | s32 val = dev->f_adc + div_u64(dev->bandwidth->step, 2); |
ea4d04f9 | 1283 | u32 offset; |
941a8204 | 1284 | |
725b7f30 AP |
1285 | val = clamp_t(s32, val, dev->bandwidth->minimum, |
1286 | dev->bandwidth->maximum); | |
1287 | offset = val - dev->bandwidth->minimum; | |
1288 | offset = dev->bandwidth->step * | |
1289 | div_u64(offset, dev->bandwidth->step); | |
1290 | dev->bandwidth->val = dev->bandwidth->minimum + offset; | |
ea4d04f9 | 1291 | } |
725b7f30 | 1292 | c->bandwidth_hz = dev->bandwidth->val; |
77113892 | 1293 | |
725b7f30 | 1294 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
1295 | return 0; |
1296 | ||
1297 | if (fe->ops.tuner_ops.set_params) | |
1298 | ret = fe->ops.tuner_ops.set_params(fe); | |
1299 | else | |
1300 | ret = 0; | |
1301 | break; | |
1302 | default: | |
1303 | ret = -EINVAL; | |
1304 | } | |
1305 | ||
1306 | return ret; | |
1307 | } | |
1308 | ||
1309 | static const struct v4l2_ctrl_ops rtl2832_sdr_ctrl_ops = { | |
1310 | .s_ctrl = rtl2832_sdr_s_ctrl, | |
1311 | }; | |
1312 | ||
1313 | static void rtl2832_sdr_video_release(struct v4l2_device *v) | |
1314 | { | |
725b7f30 AP |
1315 | struct rtl2832_sdr_dev *dev = |
1316 | container_of(v, struct rtl2832_sdr_dev, v4l2_dev); | |
63bdab5d AP |
1317 | struct platform_device *pdev = dev->pdev; |
1318 | ||
1319 | dev_dbg(&pdev->dev, "\n"); | |
77113892 | 1320 | |
725b7f30 AP |
1321 | v4l2_ctrl_handler_free(&dev->hdl); |
1322 | v4l2_device_unregister(&dev->v4l2_dev); | |
1323 | kfree(dev); | |
77113892 AP |
1324 | } |
1325 | ||
63bdab5d AP |
1326 | /* Platform driver interface */ |
1327 | static int rtl2832_sdr_probe(struct platform_device *pdev) | |
77113892 | 1328 | { |
725b7f30 | 1329 | struct rtl2832_sdr_dev *dev; |
63bdab5d | 1330 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
77113892 | 1331 | const struct v4l2_ctrl_ops *ops = &rtl2832_sdr_ctrl_ops; |
63bdab5d AP |
1332 | struct v4l2_subdev *subdev; |
1333 | int ret; | |
77113892 | 1334 | |
63bdab5d AP |
1335 | dev_dbg(&pdev->dev, "\n"); |
1336 | ||
1337 | if (!pdata) { | |
1338 | dev_err(&pdev->dev, "Cannot proceed without platform data\n"); | |
1339 | ret = -EINVAL; | |
1340 | goto err; | |
1341 | } | |
d5eec231 AP |
1342 | if (!pdev->dev.parent->driver) { |
1343 | dev_dbg(&pdev->dev, "No parent device\n"); | |
1344 | ret = -EINVAL; | |
1345 | goto err; | |
1346 | } | |
1347 | /* try to refcount host drv since we are the consumer */ | |
1348 | if (!try_module_get(pdev->dev.parent->driver->owner)) { | |
1349 | dev_err(&pdev->dev, "Refcount fail"); | |
1350 | ret = -EINVAL; | |
1351 | goto err; | |
1352 | } | |
63bdab5d | 1353 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
725b7f30 | 1354 | if (dev == NULL) { |
63bdab5d | 1355 | ret = -ENOMEM; |
d5eec231 | 1356 | goto err_module_put; |
77113892 AP |
1357 | } |
1358 | ||
1359 | /* setup the state */ | |
63bdab5d | 1360 | subdev = pdata->v4l2_subdev; |
fc3a0497 | 1361 | dev->v4l2_subdev = pdata->v4l2_subdev; |
63bdab5d | 1362 | dev->pdev = pdev; |
e01fc42d | 1363 | dev->regmap = pdata->regmap; |
63bdab5d | 1364 | dev->udev = pdata->dvb_usb_device->udev; |
725b7f30 AP |
1365 | dev->f_adc = bands_adc[0].rangelow; |
1366 | dev->f_tuner = bands_fm[0].rangelow; | |
1367 | dev->pixelformat = formats[0].pixelformat; | |
1368 | dev->buffersize = formats[0].buffersize; | |
1369 | dev->num_formats = NUM_FORMATS; | |
2fe15e20 | 1370 | if (!rtl2832_sdr_emulated_fmt) |
725b7f30 | 1371 | dev->num_formats -= 1; |
77113892 | 1372 | |
725b7f30 AP |
1373 | mutex_init(&dev->v4l2_lock); |
1374 | mutex_init(&dev->vb_queue_lock); | |
1375 | spin_lock_init(&dev->queued_bufs_lock); | |
1376 | INIT_LIST_HEAD(&dev->queued_bufs); | |
77113892 AP |
1377 | |
1378 | /* Init videobuf2 queue structure */ | |
725b7f30 AP |
1379 | dev->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; |
1380 | dev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; | |
1381 | dev->vb_queue.drv_priv = dev; | |
1382 | dev->vb_queue.buf_struct_size = sizeof(struct rtl2832_sdr_frame_buf); | |
1383 | dev->vb_queue.ops = &rtl2832_sdr_vb2_ops; | |
1384 | dev->vb_queue.mem_ops = &vb2_vmalloc_memops; | |
1385 | dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
1386 | ret = vb2_queue_init(&dev->vb_queue); | |
77113892 | 1387 | if (ret) { |
63bdab5d AP |
1388 | dev_err(&pdev->dev, "Could not initialize vb2 queue\n"); |
1389 | goto err_kfree; | |
77113892 AP |
1390 | } |
1391 | ||
1392 | /* Register controls */ | |
63bdab5d AP |
1393 | switch (pdata->tuner) { |
1394 | case RTL2832_SDR_TUNER_E4000: | |
725b7f30 | 1395 | v4l2_ctrl_handler_init(&dev->hdl, 9); |
63bdab5d AP |
1396 | if (subdev) |
1397 | v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler, NULL); | |
77113892 | 1398 | break; |
63bdab5d AP |
1399 | case RTL2832_SDR_TUNER_R820T: |
1400 | case RTL2832_SDR_TUNER_R828D: | |
725b7f30 AP |
1401 | v4l2_ctrl_handler_init(&dev->hdl, 2); |
1402 | dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops, | |
63bdab5d AP |
1403 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
1404 | 0, 1, 1, 1); | |
725b7f30 | 1405 | dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops, |
63bdab5d AP |
1406 | V4L2_CID_RF_TUNER_BANDWIDTH, |
1407 | 0, 8000000, 100000, 0); | |
725b7f30 | 1408 | v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); |
77113892 | 1409 | break; |
63bdab5d AP |
1410 | case RTL2832_SDR_TUNER_FC0012: |
1411 | case RTL2832_SDR_TUNER_FC0013: | |
725b7f30 AP |
1412 | v4l2_ctrl_handler_init(&dev->hdl, 2); |
1413 | dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops, | |
63bdab5d AP |
1414 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
1415 | 0, 1, 1, 1); | |
725b7f30 | 1416 | dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops, |
63bdab5d AP |
1417 | V4L2_CID_RF_TUNER_BANDWIDTH, |
1418 | 6000000, 8000000, 1000000, | |
1419 | 6000000); | |
725b7f30 | 1420 | v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); |
77113892 | 1421 | break; |
fc3a0497 AP |
1422 | case RTL2832_SDR_TUNER_FC2580: |
1423 | v4l2_ctrl_handler_init(&dev->hdl, 2); | |
1424 | if (subdev) | |
1425 | v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler, | |
1426 | NULL); | |
1427 | break; | |
77113892 | 1428 | default: |
725b7f30 | 1429 | v4l2_ctrl_handler_init(&dev->hdl, 0); |
63bdab5d AP |
1430 | dev_err(&pdev->dev, "Unsupported tuner\n"); |
1431 | goto err_v4l2_ctrl_handler_free; | |
77113892 | 1432 | } |
725b7f30 AP |
1433 | if (dev->hdl.error) { |
1434 | ret = dev->hdl.error; | |
63bdab5d AP |
1435 | dev_err(&pdev->dev, "Could not initialize controls\n"); |
1436 | goto err_v4l2_ctrl_handler_free; | |
77113892 AP |
1437 | } |
1438 | ||
1439 | /* Init video_device structure */ | |
725b7f30 AP |
1440 | dev->vdev = rtl2832_sdr_template; |
1441 | dev->vdev.queue = &dev->vb_queue; | |
1442 | dev->vdev.queue->lock = &dev->vb_queue_lock; | |
1443 | video_set_drvdata(&dev->vdev, dev); | |
77113892 AP |
1444 | |
1445 | /* Register the v4l2_device structure */ | |
725b7f30 | 1446 | dev->v4l2_dev.release = rtl2832_sdr_video_release; |
e4e78693 | 1447 | ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); |
77113892 | 1448 | if (ret) { |
63bdab5d AP |
1449 | dev_err(&pdev->dev, "Failed to register v4l2-device %d\n", ret); |
1450 | goto err_v4l2_ctrl_handler_free; | |
77113892 AP |
1451 | } |
1452 | ||
725b7f30 AP |
1453 | dev->v4l2_dev.ctrl_handler = &dev->hdl; |
1454 | dev->vdev.v4l2_dev = &dev->v4l2_dev; | |
1455 | dev->vdev.lock = &dev->v4l2_lock; | |
1456 | dev->vdev.vfl_dir = VFL_DIR_RX; | |
77113892 | 1457 | |
725b7f30 | 1458 | ret = video_register_device(&dev->vdev, VFL_TYPE_SDR, -1); |
77113892 | 1459 | if (ret) { |
63bdab5d AP |
1460 | dev_err(&pdev->dev, "Failed to register as video device %d\n", |
1461 | ret); | |
1462 | goto err_v4l2_device_unregister; | |
77113892 | 1463 | } |
63bdab5d AP |
1464 | dev_info(&pdev->dev, "Registered as %s\n", |
1465 | video_device_node_name(&dev->vdev)); | |
1466 | dev_info(&pdev->dev, "Realtek RTL2832 SDR attached\n"); | |
1467 | dev_notice(&pdev->dev, | |
1468 | "SDR API is still slightly experimental and functionality changes may follow\n"); | |
1469 | platform_set_drvdata(pdev, dev); | |
1470 | return 0; | |
1471 | err_v4l2_device_unregister: | |
725b7f30 | 1472 | v4l2_device_unregister(&dev->v4l2_dev); |
63bdab5d | 1473 | err_v4l2_ctrl_handler_free: |
725b7f30 | 1474 | v4l2_ctrl_handler_free(&dev->hdl); |
63bdab5d | 1475 | err_kfree: |
725b7f30 | 1476 | kfree(dev); |
d5eec231 AP |
1477 | err_module_put: |
1478 | module_put(pdev->dev.parent->driver->owner); | |
63bdab5d AP |
1479 | err: |
1480 | return ret; | |
77113892 | 1481 | } |
63bdab5d AP |
1482 | |
1483 | static int rtl2832_sdr_remove(struct platform_device *pdev) | |
1484 | { | |
1485 | struct rtl2832_sdr_dev *dev = platform_get_drvdata(pdev); | |
1486 | ||
1487 | dev_dbg(&pdev->dev, "\n"); | |
1488 | ||
1489 | mutex_lock(&dev->vb_queue_lock); | |
1490 | mutex_lock(&dev->v4l2_lock); | |
1491 | /* No need to keep the urbs around after disconnection */ | |
1492 | dev->udev = NULL; | |
1493 | v4l2_device_disconnect(&dev->v4l2_dev); | |
1494 | video_unregister_device(&dev->vdev); | |
1495 | mutex_unlock(&dev->v4l2_lock); | |
1496 | mutex_unlock(&dev->vb_queue_lock); | |
63bdab5d | 1497 | v4l2_device_put(&dev->v4l2_dev); |
d5eec231 | 1498 | module_put(pdev->dev.parent->driver->owner); |
63bdab5d AP |
1499 | |
1500 | return 0; | |
1501 | } | |
1502 | ||
1503 | static struct platform_driver rtl2832_sdr_driver = { | |
1504 | .driver = { | |
1505 | .name = "rtl2832_sdr", | |
63bdab5d AP |
1506 | }, |
1507 | .probe = rtl2832_sdr_probe, | |
1508 | .remove = rtl2832_sdr_remove, | |
1509 | }; | |
1510 | module_platform_driver(rtl2832_sdr_driver); | |
77113892 AP |
1511 | |
1512 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
1513 | MODULE_DESCRIPTION("Realtek RTL2832 SDR driver"); | |
1514 | MODULE_LICENSE("GPL"); |