Commit | Line | Data |
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16216333 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
77113892 AP |
2 | /* |
3 | * Realtek RTL2832U SDR driver | |
4 | * | |
5 | * Copyright (C) 2013 Antti Palosaari <crope@iki.fi> | |
6 | * | |
77113892 | 7 | * GNU Radio plugin "gr-kernel" for device usage will be on: |
e6e059a8 | 8 | * https://git.linuxtv.org/anttip/gr-kernel.git |
77113892 AP |
9 | */ |
10 | ||
77113892 AP |
11 | #include "rtl2832_sdr.h" |
12 | #include "dvb_usb.h" | |
13 | ||
14 | #include <media/v4l2-device.h> | |
15 | #include <media/v4l2-ioctl.h> | |
16 | #include <media/v4l2-ctrls.h> | |
17 | #include <media/v4l2-event.h> | |
2d700715 | 18 | #include <media/videobuf2-v4l2.h> |
77113892 AP |
19 | #include <media/videobuf2-vmalloc.h> |
20 | ||
63bdab5d | 21 | #include <linux/platform_device.h> |
77113892 AP |
22 | #include <linux/jiffies.h> |
23 | #include <linux/math64.h> | |
1cf79db2 | 24 | #include <linux/regmap.h> |
77113892 | 25 | |
2970c0d5 AP |
26 | static bool rtl2832_sdr_emulated_fmt; |
27 | module_param_named(emulated_formats, rtl2832_sdr_emulated_fmt, bool, 0644); | |
28 | MODULE_PARM_DESC(emulated_formats, "enable emulated formats (disappears in future)"); | |
29 | ||
fc3a0497 AP |
30 | /* Original macro does not contain enough null pointer checks for our need */ |
31 | #define V4L2_SUBDEV_HAS_OP(sd, o, f) \ | |
32 | ((sd) && (sd)->ops && (sd)->ops->o && (sd)->ops->o->f) | |
33 | ||
77113892 AP |
34 | #define MAX_BULK_BUFS (10) |
35 | #define BULK_BUFFER_SIZE (128 * 512) | |
36 | ||
37 | static const struct v4l2_frequency_band bands_adc[] = { | |
38 | { | |
39 | .tuner = 0, | |
40 | .type = V4L2_TUNER_ADC, | |
41 | .index = 0, | |
42 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
43 | .rangelow = 300000, | |
44 | .rangehigh = 300000, | |
45 | }, | |
46 | { | |
47 | .tuner = 0, | |
48 | .type = V4L2_TUNER_ADC, | |
49 | .index = 1, | |
50 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
51 | .rangelow = 900001, | |
52 | .rangehigh = 2800000, | |
53 | }, | |
54 | { | |
55 | .tuner = 0, | |
56 | .type = V4L2_TUNER_ADC, | |
57 | .index = 2, | |
58 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
59 | .rangelow = 3200000, | |
60 | .rangehigh = 3200000, | |
61 | }, | |
62 | }; | |
63 | ||
64 | static const struct v4l2_frequency_band bands_fm[] = { | |
65 | { | |
66 | .tuner = 1, | |
67 | .type = V4L2_TUNER_RF, | |
68 | .index = 0, | |
69 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
70 | .rangelow = 50000000, | |
71 | .rangehigh = 2000000000, | |
72 | }, | |
73 | }; | |
74 | ||
75 | /* stream formats */ | |
76 | struct rtl2832_sdr_format { | |
77 | char *name; | |
78 | u32 pixelformat; | |
d57fe404 | 79 | u32 buffersize; |
77113892 AP |
80 | }; |
81 | ||
82 | static struct rtl2832_sdr_format formats[] = { | |
83 | { | |
d57fe404 AP |
84 | .pixelformat = V4L2_SDR_FMT_CU8, |
85 | .buffersize = BULK_BUFFER_SIZE, | |
77113892 | 86 | }, { |
77113892 | 87 | .pixelformat = V4L2_SDR_FMT_CU16LE, |
d57fe404 | 88 | .buffersize = BULK_BUFFER_SIZE * 2, |
77113892 AP |
89 | }, |
90 | }; | |
91 | ||
92 | static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); | |
93 | ||
94 | /* intermediate buffers with raw data from the USB device */ | |
95 | struct rtl2832_sdr_frame_buf { | |
2d700715 JS |
96 | /* common v4l buffer stuff -- must be first */ |
97 | struct vb2_v4l2_buffer vb; | |
77113892 AP |
98 | struct list_head list; |
99 | }; | |
100 | ||
725b7f30 | 101 | struct rtl2832_sdr_dev { |
e4d131d3 DC |
102 | #define POWER_ON 0 /* BIT(0) */ |
103 | #define URB_BUF 1 /* BIT(1) */ | |
77113892 AP |
104 | unsigned long flags; |
105 | ||
63bdab5d | 106 | struct platform_device *pdev; |
e01fc42d | 107 | struct regmap *regmap; |
77113892 AP |
108 | |
109 | struct video_device vdev; | |
110 | struct v4l2_device v4l2_dev; | |
fc3a0497 | 111 | struct v4l2_subdev *v4l2_subdev; |
77113892 AP |
112 | |
113 | /* videobuf2 queue and queued buffers list */ | |
114 | struct vb2_queue vb_queue; | |
115 | struct list_head queued_bufs; | |
116 | spinlock_t queued_bufs_lock; /* Protects queued_bufs */ | |
bc908754 | 117 | unsigned sequence; /* buffer sequence counter */ |
77113892 AP |
118 | |
119 | /* Note if taking both locks v4l2_lock must always be locked first! */ | |
120 | struct mutex v4l2_lock; /* Protects everything else */ | |
121 | struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ | |
122 | ||
123 | /* Pointer to our usb_device, will be NULL after unplug */ | |
124 | struct usb_device *udev; /* Both mutexes most be hold when setting! */ | |
125 | ||
126 | unsigned int vb_full; /* vb is full and packets dropped */ | |
127 | ||
128 | struct urb *urb_list[MAX_BULK_BUFS]; | |
129 | int buf_num; | |
130 | unsigned long buf_size; | |
131 | u8 *buf_list[MAX_BULK_BUFS]; | |
132 | dma_addr_t dma_addr[MAX_BULK_BUFS]; | |
133 | int urbs_initialized; | |
134 | int urbs_submitted; | |
135 | ||
136 | unsigned int f_adc, f_tuner; | |
137 | u32 pixelformat; | |
d57fe404 | 138 | u32 buffersize; |
2970c0d5 | 139 | unsigned int num_formats; |
77113892 AP |
140 | |
141 | /* Controls */ | |
142 | struct v4l2_ctrl_handler hdl; | |
143 | struct v4l2_ctrl *bandwidth_auto; | |
144 | struct v4l2_ctrl *bandwidth; | |
145 | ||
146 | /* for sample rate calc */ | |
147 | unsigned int sample; | |
148 | unsigned int sample_measured; | |
149 | unsigned long jiffies_next; | |
150 | }; | |
151 | ||
77113892 AP |
152 | /* Private functions */ |
153 | static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf( | |
725b7f30 | 154 | struct rtl2832_sdr_dev *dev) |
77113892 | 155 | { |
abfc8d66 | 156 | unsigned long flags; |
77113892 AP |
157 | struct rtl2832_sdr_frame_buf *buf = NULL; |
158 | ||
725b7f30 AP |
159 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
160 | if (list_empty(&dev->queued_bufs)) | |
77113892 AP |
161 | goto leave; |
162 | ||
725b7f30 | 163 | buf = list_entry(dev->queued_bufs.next, |
77113892 AP |
164 | struct rtl2832_sdr_frame_buf, list); |
165 | list_del(&buf->list); | |
166 | leave: | |
725b7f30 | 167 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); |
77113892 AP |
168 | return buf; |
169 | } | |
170 | ||
725b7f30 | 171 | static unsigned int rtl2832_sdr_convert_stream(struct rtl2832_sdr_dev *dev, |
77113892 AP |
172 | void *dst, const u8 *src, unsigned int src_len) |
173 | { | |
e4e78693 | 174 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
175 | unsigned int dst_len; |
176 | ||
725b7f30 | 177 | if (dev->pixelformat == V4L2_SDR_FMT_CU8) { |
77113892 AP |
178 | /* native stream, no need to convert */ |
179 | memcpy(dst, src, src_len); | |
180 | dst_len = src_len; | |
725b7f30 | 181 | } else if (dev->pixelformat == V4L2_SDR_FMT_CU16LE) { |
77113892 AP |
182 | /* convert u8 to u16 */ |
183 | unsigned int i; | |
184 | u16 *u16dst = dst; | |
941a8204 | 185 | |
77113892 AP |
186 | for (i = 0; i < src_len; i++) |
187 | *u16dst++ = (src[i] << 8) | (src[i] >> 0); | |
188 | dst_len = 2 * src_len; | |
189 | } else { | |
190 | dst_len = 0; | |
191 | } | |
192 | ||
b538a8e8 | 193 | /* calculate sample rate and output it in 10 seconds intervals */ |
725b7f30 | 194 | if (unlikely(time_is_before_jiffies(dev->jiffies_next))) { |
b538a8e8 AP |
195 | #define MSECS 10000UL |
196 | unsigned int msecs = jiffies_to_msecs(jiffies - | |
725b7f30 AP |
197 | dev->jiffies_next + msecs_to_jiffies(MSECS)); |
198 | unsigned int samples = dev->sample - dev->sample_measured; | |
941a8204 | 199 | |
725b7f30 AP |
200 | dev->jiffies_next = jiffies + msecs_to_jiffies(MSECS); |
201 | dev->sample_measured = dev->sample; | |
e4e78693 AP |
202 | dev_dbg(&pdev->dev, |
203 | "slen=%u samples=%u msecs=%u sample rate=%lu\n", | |
204 | src_len, samples, msecs, samples * 1000UL / msecs); | |
77113892 AP |
205 | } |
206 | ||
207 | /* total number of I+Q pairs */ | |
725b7f30 | 208 | dev->sample += src_len / 2; |
77113892 AP |
209 | |
210 | return dst_len; | |
211 | } | |
212 | ||
213 | /* | |
214 | * This gets called for the bulk stream pipe. This is done in interrupt | |
215 | * time, so it has to be fast, not crash, and not stall. Neat. | |
216 | */ | |
217 | static void rtl2832_sdr_urb_complete(struct urb *urb) | |
218 | { | |
725b7f30 | 219 | struct rtl2832_sdr_dev *dev = urb->context; |
e4e78693 | 220 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
221 | struct rtl2832_sdr_frame_buf *fbuf; |
222 | ||
e4e78693 AP |
223 | dev_dbg_ratelimited(&pdev->dev, "status=%d length=%d/%d errors=%d\n", |
224 | urb->status, urb->actual_length, | |
225 | urb->transfer_buffer_length, urb->error_count); | |
77113892 AP |
226 | |
227 | switch (urb->status) { | |
228 | case 0: /* success */ | |
229 | case -ETIMEDOUT: /* NAK */ | |
230 | break; | |
231 | case -ECONNRESET: /* kill */ | |
232 | case -ENOENT: | |
233 | case -ESHUTDOWN: | |
234 | return; | |
235 | default: /* error */ | |
e4e78693 | 236 | dev_err_ratelimited(&pdev->dev, "urb failed=%d\n", urb->status); |
77113892 AP |
237 | break; |
238 | } | |
239 | ||
240 | if (likely(urb->actual_length > 0)) { | |
241 | void *ptr; | |
242 | unsigned int len; | |
243 | /* get free framebuffer */ | |
725b7f30 | 244 | fbuf = rtl2832_sdr_get_next_fill_buf(dev); |
77113892 | 245 | if (unlikely(fbuf == NULL)) { |
725b7f30 | 246 | dev->vb_full++; |
e4e78693 | 247 | dev_notice_ratelimited(&pdev->dev, |
f068a6ce | 248 | "video buffer is full, %d packets dropped\n", |
e4e78693 | 249 | dev->vb_full); |
77113892 AP |
250 | goto skip; |
251 | } | |
252 | ||
253 | /* fill framebuffer */ | |
2d700715 | 254 | ptr = vb2_plane_vaddr(&fbuf->vb.vb2_buf, 0); |
725b7f30 | 255 | len = rtl2832_sdr_convert_stream(dev, ptr, urb->transfer_buffer, |
77113892 | 256 | urb->actual_length); |
2d700715 | 257 | vb2_set_plane_payload(&fbuf->vb.vb2_buf, 0, len); |
d6dd645e | 258 | fbuf->vb.vb2_buf.timestamp = ktime_get_ns(); |
2d700715 JS |
259 | fbuf->vb.sequence = dev->sequence++; |
260 | vb2_buffer_done(&fbuf->vb.vb2_buf, VB2_BUF_STATE_DONE); | |
77113892 AP |
261 | } |
262 | skip: | |
263 | usb_submit_urb(urb, GFP_ATOMIC); | |
264 | } | |
265 | ||
725b7f30 | 266 | static int rtl2832_sdr_kill_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 267 | { |
e4e78693 | 268 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
269 | int i; |
270 | ||
725b7f30 | 271 | for (i = dev->urbs_submitted - 1; i >= 0; i--) { |
e4e78693 | 272 | dev_dbg(&pdev->dev, "kill urb=%d\n", i); |
77113892 | 273 | /* stop the URB */ |
725b7f30 | 274 | usb_kill_urb(dev->urb_list[i]); |
77113892 | 275 | } |
725b7f30 | 276 | dev->urbs_submitted = 0; |
77113892 AP |
277 | |
278 | return 0; | |
279 | } | |
280 | ||
725b7f30 | 281 | static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 282 | { |
e4e78693 | 283 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
284 | int i, ret; |
285 | ||
725b7f30 | 286 | for (i = 0; i < dev->urbs_initialized; i++) { |
e4e78693 | 287 | dev_dbg(&pdev->dev, "submit urb=%d\n", i); |
730129e9 | 288 | ret = usb_submit_urb(dev->urb_list[i], GFP_KERNEL); |
77113892 | 289 | if (ret) { |
e4e78693 AP |
290 | dev_err(&pdev->dev, |
291 | "Could not submit urb no. %d - get them all back\n", | |
292 | i); | |
725b7f30 | 293 | rtl2832_sdr_kill_urbs(dev); |
77113892 AP |
294 | return ret; |
295 | } | |
725b7f30 | 296 | dev->urbs_submitted++; |
77113892 AP |
297 | } |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
725b7f30 | 302 | static int rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 303 | { |
e4e78693 | 304 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 | 305 | |
e4d131d3 | 306 | if (test_bit(URB_BUF, &dev->flags)) { |
725b7f30 AP |
307 | while (dev->buf_num) { |
308 | dev->buf_num--; | |
e4e78693 | 309 | dev_dbg(&pdev->dev, "free buf=%d\n", dev->buf_num); |
725b7f30 AP |
310 | usb_free_coherent(dev->udev, dev->buf_size, |
311 | dev->buf_list[dev->buf_num], | |
312 | dev->dma_addr[dev->buf_num]); | |
77113892 AP |
313 | } |
314 | } | |
e4d131d3 | 315 | clear_bit(URB_BUF, &dev->flags); |
77113892 AP |
316 | |
317 | return 0; | |
318 | } | |
319 | ||
725b7f30 | 320 | static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 321 | { |
e4e78693 | 322 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 | 323 | |
725b7f30 AP |
324 | dev->buf_num = 0; |
325 | dev->buf_size = BULK_BUFFER_SIZE; | |
77113892 | 326 | |
e4e78693 AP |
327 | dev_dbg(&pdev->dev, "all in all I will use %u bytes for streaming\n", |
328 | MAX_BULK_BUFS * BULK_BUFFER_SIZE); | |
77113892 | 329 | |
725b7f30 AP |
330 | for (dev->buf_num = 0; dev->buf_num < MAX_BULK_BUFS; dev->buf_num++) { |
331 | dev->buf_list[dev->buf_num] = usb_alloc_coherent(dev->udev, | |
730129e9 | 332 | BULK_BUFFER_SIZE, GFP_KERNEL, |
725b7f30 AP |
333 | &dev->dma_addr[dev->buf_num]); |
334 | if (!dev->buf_list[dev->buf_num]) { | |
e4e78693 AP |
335 | dev_dbg(&pdev->dev, "alloc buf=%d failed\n", |
336 | dev->buf_num); | |
725b7f30 | 337 | rtl2832_sdr_free_stream_bufs(dev); |
77113892 AP |
338 | return -ENOMEM; |
339 | } | |
340 | ||
e4e78693 AP |
341 | dev_dbg(&pdev->dev, "alloc buf=%d %p (dma %llu)\n", |
342 | dev->buf_num, dev->buf_list[dev->buf_num], | |
343 | (long long)dev->dma_addr[dev->buf_num]); | |
e4d131d3 | 344 | set_bit(URB_BUF, &dev->flags); |
77113892 AP |
345 | } |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
725b7f30 | 350 | static int rtl2832_sdr_free_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 351 | { |
e4e78693 | 352 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
353 | int i; |
354 | ||
725b7f30 | 355 | rtl2832_sdr_kill_urbs(dev); |
77113892 | 356 | |
725b7f30 AP |
357 | for (i = dev->urbs_initialized - 1; i >= 0; i--) { |
358 | if (dev->urb_list[i]) { | |
e4e78693 | 359 | dev_dbg(&pdev->dev, "free urb=%d\n", i); |
77113892 | 360 | /* free the URBs */ |
725b7f30 | 361 | usb_free_urb(dev->urb_list[i]); |
77113892 AP |
362 | } |
363 | } | |
725b7f30 | 364 | dev->urbs_initialized = 0; |
77113892 AP |
365 | |
366 | return 0; | |
367 | } | |
368 | ||
725b7f30 | 369 | static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 370 | { |
e4e78693 | 371 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
372 | int i, j; |
373 | ||
374 | /* allocate the URBs */ | |
375 | for (i = 0; i < MAX_BULK_BUFS; i++) { | |
e4e78693 | 376 | dev_dbg(&pdev->dev, "alloc urb=%d\n", i); |
730129e9 | 377 | dev->urb_list[i] = usb_alloc_urb(0, GFP_KERNEL); |
725b7f30 | 378 | if (!dev->urb_list[i]) { |
cefdc951 | 379 | for (j = 0; j < i; j++) { |
725b7f30 | 380 | usb_free_urb(dev->urb_list[j]); |
cefdc951 NY |
381 | dev->urb_list[j] = NULL; |
382 | } | |
383 | dev->urbs_initialized = 0; | |
77113892 AP |
384 | return -ENOMEM; |
385 | } | |
725b7f30 AP |
386 | usb_fill_bulk_urb(dev->urb_list[i], |
387 | dev->udev, | |
388 | usb_rcvbulkpipe(dev->udev, 0x81), | |
389 | dev->buf_list[i], | |
77113892 | 390 | BULK_BUFFER_SIZE, |
725b7f30 | 391 | rtl2832_sdr_urb_complete, dev); |
77113892 | 392 | |
725b7f30 AP |
393 | dev->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; |
394 | dev->urb_list[i]->transfer_dma = dev->dma_addr[i]; | |
395 | dev->urbs_initialized++; | |
77113892 AP |
396 | } |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
401 | /* Must be called with vb_queue_lock hold */ | |
725b7f30 | 402 | static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 403 | { |
e4e78693 | 404 | struct platform_device *pdev = dev->pdev; |
abfc8d66 | 405 | unsigned long flags; |
941a8204 | 406 | |
e4e78693 | 407 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 408 | |
725b7f30 AP |
409 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
410 | while (!list_empty(&dev->queued_bufs)) { | |
77113892 | 411 | struct rtl2832_sdr_frame_buf *buf; |
941a8204 | 412 | |
725b7f30 | 413 | buf = list_entry(dev->queued_bufs.next, |
77113892 AP |
414 | struct rtl2832_sdr_frame_buf, list); |
415 | list_del(&buf->list); | |
2d700715 | 416 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
77113892 | 417 | } |
725b7f30 | 418 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); |
77113892 AP |
419 | } |
420 | ||
77113892 AP |
421 | static int rtl2832_sdr_querycap(struct file *file, void *fh, |
422 | struct v4l2_capability *cap) | |
423 | { | |
725b7f30 | 424 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 425 | struct platform_device *pdev = dev->pdev; |
941a8204 | 426 | |
e4e78693 | 427 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 428 | |
c0decac1 MCC |
429 | strscpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); |
430 | strscpy(cap->card, dev->vdev.name, sizeof(cap->card)); | |
725b7f30 | 431 | usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); |
77113892 AP |
432 | return 0; |
433 | } | |
434 | ||
435 | /* Videobuf2 operations */ | |
436 | static int rtl2832_sdr_queue_setup(struct vb2_queue *vq, | |
df9ecb0c | 437 | unsigned int *nbuffers, |
36c0f8b3 | 438 | unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) |
77113892 | 439 | { |
725b7f30 | 440 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 441 | struct platform_device *pdev = dev->pdev; |
595f445b | 442 | unsigned int q_num_bufs = vb2_get_num_buffers(vq); |
941a8204 | 443 | |
e4e78693 | 444 | dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers); |
77113892 | 445 | |
bc908754 | 446 | /* Need at least 8 buffers */ |
595f445b BG |
447 | if (q_num_bufs + *nbuffers < 8) |
448 | *nbuffers = 8 - q_num_bufs; | |
77113892 | 449 | *nplanes = 1; |
725b7f30 | 450 | sizes[0] = PAGE_ALIGN(dev->buffersize); |
e4e78693 | 451 | dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); |
77113892 AP |
452 | return 0; |
453 | } | |
454 | ||
455 | static int rtl2832_sdr_buf_prepare(struct vb2_buffer *vb) | |
456 | { | |
725b7f30 | 457 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
77113892 | 458 | |
868c9a17 | 459 | /* Don't allow queueing new buffers after device disconnection */ |
725b7f30 | 460 | if (!dev->udev) |
77113892 AP |
461 | return -ENODEV; |
462 | ||
463 | return 0; | |
464 | } | |
465 | ||
466 | static void rtl2832_sdr_buf_queue(struct vb2_buffer *vb) | |
467 | { | |
2d700715 | 468 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
725b7f30 | 469 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
77113892 | 470 | struct rtl2832_sdr_frame_buf *buf = |
2d700715 | 471 | container_of(vbuf, struct rtl2832_sdr_frame_buf, vb); |
abfc8d66 | 472 | unsigned long flags; |
77113892 AP |
473 | |
474 | /* Check the device has not disconnected between prep and queuing */ | |
725b7f30 | 475 | if (!dev->udev) { |
2d700715 | 476 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
77113892 AP |
477 | return; |
478 | } | |
479 | ||
725b7f30 AP |
480 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
481 | list_add_tail(&buf->list, &dev->queued_bufs); | |
482 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); | |
77113892 AP |
483 | } |
484 | ||
725b7f30 | 485 | static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev) |
77113892 | 486 | { |
63bdab5d AP |
487 | struct platform_device *pdev = dev->pdev; |
488 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
3bda2bf1 | 489 | struct dvb_frontend *fe = pdata->dvb_frontend; |
77113892 AP |
490 | int ret; |
491 | unsigned int f_sr, f_if; | |
492 | u8 buf[4], u8tmp1, u8tmp2; | |
493 | u64 u64tmp; | |
494 | u32 u32tmp; | |
941a8204 | 495 | |
e4e78693 | 496 | dev_dbg(&pdev->dev, "f_adc=%u\n", dev->f_adc); |
77113892 | 497 | |
725b7f30 | 498 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
499 | return 0; |
500 | ||
725b7f30 | 501 | if (dev->f_adc == 0) |
77113892 AP |
502 | return 0; |
503 | ||
725b7f30 | 504 | f_sr = dev->f_adc; |
77113892 | 505 | |
e01fc42d | 506 | ret = regmap_bulk_write(dev->regmap, 0x13e, "\x00\x00", 2); |
77113892 AP |
507 | if (ret) |
508 | goto err; | |
509 | ||
e01fc42d | 510 | ret = regmap_bulk_write(dev->regmap, 0x115, "\x00\x00\x00\x00", 4); |
77113892 AP |
511 | if (ret) |
512 | goto err; | |
513 | ||
514 | /* get IF from tuner */ | |
515 | if (fe->ops.tuner_ops.get_if_frequency) | |
516 | ret = fe->ops.tuner_ops.get_if_frequency(fe, &f_if); | |
517 | else | |
518 | ret = -EINVAL; | |
519 | ||
520 | if (ret) | |
521 | goto err; | |
522 | ||
523 | /* program IF */ | |
63bdab5d | 524 | u64tmp = f_if % pdata->clk; |
77113892 | 525 | u64tmp *= 0x400000; |
63bdab5d | 526 | u64tmp = div_u64(u64tmp, pdata->clk); |
77113892 AP |
527 | u64tmp = -u64tmp; |
528 | u32tmp = u64tmp & 0x3fffff; | |
529 | ||
e4e78693 | 530 | dev_dbg(&pdev->dev, "f_if=%u if_ctl=%08x\n", f_if, u32tmp); |
77113892 AP |
531 | |
532 | buf[0] = (u32tmp >> 16) & 0xff; | |
533 | buf[1] = (u32tmp >> 8) & 0xff; | |
534 | buf[2] = (u32tmp >> 0) & 0xff; | |
535 | ||
e01fc42d | 536 | ret = regmap_bulk_write(dev->regmap, 0x119, buf, 3); |
77113892 AP |
537 | if (ret) |
538 | goto err; | |
539 | ||
540 | /* BB / IF mode */ | |
541 | /* POR: 0x1b1=0x1f, 0x008=0x0d, 0x006=0x80 */ | |
542 | if (f_if) { | |
543 | u8tmp1 = 0x1a; /* disable Zero-IF */ | |
544 | u8tmp2 = 0x8d; /* enable ADC I */ | |
545 | } else { | |
546 | u8tmp1 = 0x1b; /* enable Zero-IF, DC, IQ */ | |
547 | u8tmp2 = 0xcd; /* enable ADC I, ADC Q */ | |
548 | } | |
549 | ||
e01fc42d | 550 | ret = regmap_write(dev->regmap, 0x1b1, u8tmp1); |
77113892 AP |
551 | if (ret) |
552 | goto err; | |
553 | ||
e01fc42d | 554 | ret = regmap_write(dev->regmap, 0x008, u8tmp2); |
77113892 AP |
555 | if (ret) |
556 | goto err; | |
557 | ||
e01fc42d | 558 | ret = regmap_write(dev->regmap, 0x006, 0x80); |
77113892 AP |
559 | if (ret) |
560 | goto err; | |
561 | ||
562 | /* program sampling rate (resampling down) */ | |
63bdab5d | 563 | u32tmp = div_u64(pdata->clk * 0x400000ULL, f_sr * 4U); |
77113892 AP |
564 | u32tmp <<= 2; |
565 | buf[0] = (u32tmp >> 24) & 0xff; | |
566 | buf[1] = (u32tmp >> 16) & 0xff; | |
567 | buf[2] = (u32tmp >> 8) & 0xff; | |
568 | buf[3] = (u32tmp >> 0) & 0xff; | |
e01fc42d | 569 | ret = regmap_bulk_write(dev->regmap, 0x19f, buf, 4); |
77113892 AP |
570 | if (ret) |
571 | goto err; | |
572 | ||
573 | /* low-pass filter */ | |
e01fc42d PR |
574 | ret = regmap_bulk_write(dev->regmap, 0x11c, |
575 | "\xca\xdc\xd7\xd8\xe0\xf2\x0e\x35\x06\x50\x9c\x0d\x71\x11\x14\x71\x74\x19\x41\xa5", | |
576 | 20); | |
77113892 AP |
577 | if (ret) |
578 | goto err; | |
579 | ||
e01fc42d | 580 | ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2); |
77113892 AP |
581 | if (ret) |
582 | goto err; | |
583 | ||
584 | /* mode */ | |
e01fc42d | 585 | ret = regmap_write(dev->regmap, 0x019, 0x05); |
77113892 AP |
586 | if (ret) |
587 | goto err; | |
588 | ||
e01fc42d PR |
589 | ret = regmap_bulk_write(dev->regmap, 0x01a, |
590 | "\x1b\x16\x0d\x06\x01\xff", 6); | |
77113892 AP |
591 | if (ret) |
592 | goto err; | |
593 | ||
594 | /* FSM */ | |
e01fc42d | 595 | ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\xf0\x0f", 3); |
77113892 AP |
596 | if (ret) |
597 | goto err; | |
598 | ||
599 | /* PID filter */ | |
e01fc42d | 600 | ret = regmap_write(dev->regmap, 0x061, 0x60); |
77113892 AP |
601 | if (ret) |
602 | goto err; | |
603 | ||
604 | /* used RF tuner based settings */ | |
63bdab5d AP |
605 | switch (pdata->tuner) { |
606 | case RTL2832_SDR_TUNER_E4000: | |
e01fc42d PR |
607 | ret = regmap_write(dev->regmap, 0x112, 0x5a); |
608 | ret = regmap_write(dev->regmap, 0x102, 0x40); | |
609 | ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
610 | ret = regmap_write(dev->regmap, 0x1c7, 0x30); | |
611 | ret = regmap_write(dev->regmap, 0x104, 0xd0); | |
612 | ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
613 | ret = regmap_write(dev->regmap, 0x1c8, 0x18); | |
614 | ret = regmap_write(dev->regmap, 0x106, 0x35); | |
615 | ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
616 | ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
617 | ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
618 | ret = regmap_write(dev->regmap, 0x107, 0x40); | |
619 | ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
620 | ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
621 | ret = regmap_write(dev->regmap, 0x108, 0x80); | |
622 | ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
623 | ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
624 | ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
625 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
626 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
627 | ret = regmap_write(dev->regmap, 0x011, 0xd4); | |
628 | ret = regmap_write(dev->regmap, 0x1e5, 0xf0); | |
629 | ret = regmap_write(dev->regmap, 0x1d9, 0x00); | |
630 | ret = regmap_write(dev->regmap, 0x1db, 0x00); | |
631 | ret = regmap_write(dev->regmap, 0x1dd, 0x14); | |
632 | ret = regmap_write(dev->regmap, 0x1de, 0xec); | |
633 | ret = regmap_write(dev->regmap, 0x1d8, 0x0c); | |
634 | ret = regmap_write(dev->regmap, 0x1e6, 0x02); | |
635 | ret = regmap_write(dev->regmap, 0x1d7, 0x09); | |
636 | ret = regmap_write(dev->regmap, 0x00d, 0x83); | |
637 | ret = regmap_write(dev->regmap, 0x010, 0x49); | |
638 | ret = regmap_write(dev->regmap, 0x00d, 0x87); | |
639 | ret = regmap_write(dev->regmap, 0x00d, 0x85); | |
640 | ret = regmap_write(dev->regmap, 0x013, 0x02); | |
77113892 | 641 | break; |
63bdab5d AP |
642 | case RTL2832_SDR_TUNER_FC0012: |
643 | case RTL2832_SDR_TUNER_FC0013: | |
e01fc42d PR |
644 | ret = regmap_write(dev->regmap, 0x112, 0x5a); |
645 | ret = regmap_write(dev->regmap, 0x102, 0x40); | |
646 | ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
647 | ret = regmap_write(dev->regmap, 0x1c7, 0x2c); | |
648 | ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
649 | ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
650 | ret = regmap_write(dev->regmap, 0x1c8, 0x16); | |
651 | ret = regmap_write(dev->regmap, 0x106, 0x35); | |
652 | ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
653 | ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
654 | ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
655 | ret = regmap_write(dev->regmap, 0x107, 0x40); | |
656 | ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
657 | ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
658 | ret = regmap_write(dev->regmap, 0x108, 0x80); | |
659 | ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
660 | ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
661 | ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
662 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
663 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
664 | ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xbf", 2); | |
665 | ret = regmap_write(dev->regmap, 0x1e5, 0xf0); | |
666 | ret = regmap_write(dev->regmap, 0x1d9, 0x00); | |
667 | ret = regmap_write(dev->regmap, 0x1db, 0x00); | |
668 | ret = regmap_write(dev->regmap, 0x1dd, 0x11); | |
669 | ret = regmap_write(dev->regmap, 0x1de, 0xef); | |
670 | ret = regmap_write(dev->regmap, 0x1d8, 0x0c); | |
671 | ret = regmap_write(dev->regmap, 0x1e6, 0x02); | |
672 | ret = regmap_write(dev->regmap, 0x1d7, 0x09); | |
77113892 | 673 | break; |
63bdab5d AP |
674 | case RTL2832_SDR_TUNER_R820T: |
675 | case RTL2832_SDR_TUNER_R828D: | |
e01fc42d PR |
676 | ret = regmap_write(dev->regmap, 0x112, 0x5a); |
677 | ret = regmap_write(dev->regmap, 0x102, 0x40); | |
678 | ret = regmap_write(dev->regmap, 0x115, 0x01); | |
679 | ret = regmap_write(dev->regmap, 0x103, 0x80); | |
680 | ret = regmap_write(dev->regmap, 0x1c7, 0x24); | |
681 | ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
682 | ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
683 | ret = regmap_write(dev->regmap, 0x1c8, 0x14); | |
684 | ret = regmap_write(dev->regmap, 0x106, 0x35); | |
685 | ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
686 | ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
687 | ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
688 | ret = regmap_write(dev->regmap, 0x107, 0x40); | |
689 | ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
690 | ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
691 | ret = regmap_write(dev->regmap, 0x108, 0x80); | |
692 | ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
693 | ret = regmap_write(dev->regmap, 0x10a, 0x80); | |
694 | ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
695 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
696 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
697 | ret = regmap_write(dev->regmap, 0x011, 0xf4); | |
77113892 | 698 | break; |
fc3a0497 | 699 | case RTL2832_SDR_TUNER_FC2580: |
e01fc42d PR |
700 | ret = regmap_write(dev->regmap, 0x112, 0x39); |
701 | ret = regmap_write(dev->regmap, 0x102, 0x40); | |
702 | ret = regmap_write(dev->regmap, 0x103, 0x5a); | |
703 | ret = regmap_write(dev->regmap, 0x1c7, 0x2c); | |
704 | ret = regmap_write(dev->regmap, 0x104, 0xcc); | |
705 | ret = regmap_write(dev->regmap, 0x105, 0xbe); | |
706 | ret = regmap_write(dev->regmap, 0x1c8, 0x16); | |
707 | ret = regmap_write(dev->regmap, 0x106, 0x35); | |
708 | ret = regmap_write(dev->regmap, 0x1c9, 0x21); | |
709 | ret = regmap_write(dev->regmap, 0x1ca, 0x21); | |
710 | ret = regmap_write(dev->regmap, 0x1cb, 0x00); | |
711 | ret = regmap_write(dev->regmap, 0x107, 0x40); | |
712 | ret = regmap_write(dev->regmap, 0x1cd, 0x10); | |
713 | ret = regmap_write(dev->regmap, 0x1ce, 0x10); | |
714 | ret = regmap_write(dev->regmap, 0x108, 0x80); | |
715 | ret = regmap_write(dev->regmap, 0x109, 0x7f); | |
716 | ret = regmap_write(dev->regmap, 0x10a, 0x9c); | |
717 | ret = regmap_write(dev->regmap, 0x10b, 0x7f); | |
718 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
719 | ret = regmap_write(dev->regmap, 0x00e, 0xfc); | |
720 | ret = regmap_bulk_write(dev->regmap, 0x011, "\xe9\xf4", 2); | |
fc3a0497 | 721 | break; |
77113892 | 722 | default: |
e4e78693 | 723 | dev_notice(&pdev->dev, "Unsupported tuner\n"); |
77113892 AP |
724 | } |
725 | ||
726 | /* software reset */ | |
e01fc42d | 727 | ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x04); |
77113892 AP |
728 | if (ret) |
729 | goto err; | |
730 | ||
e01fc42d | 731 | ret = regmap_update_bits(dev->regmap, 0x101, 0x04, 0x00); |
77113892 AP |
732 | if (ret) |
733 | goto err; | |
734 | err: | |
735 | return ret; | |
736 | }; | |
737 | ||
725b7f30 | 738 | static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_dev *dev) |
77113892 | 739 | { |
e4e78693 | 740 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
741 | int ret; |
742 | ||
e4e78693 | 743 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
744 | |
745 | /* PID filter */ | |
e01fc42d | 746 | ret = regmap_write(dev->regmap, 0x061, 0xe0); |
77113892 AP |
747 | if (ret) |
748 | goto err; | |
749 | ||
750 | /* mode */ | |
e01fc42d | 751 | ret = regmap_write(dev->regmap, 0x019, 0x20); |
77113892 AP |
752 | if (ret) |
753 | goto err; | |
754 | ||
e01fc42d | 755 | ret = regmap_bulk_write(dev->regmap, 0x017, "\x11\x10", 2); |
77113892 AP |
756 | if (ret) |
757 | goto err; | |
758 | ||
759 | /* FSM */ | |
e01fc42d | 760 | ret = regmap_bulk_write(dev->regmap, 0x192, "\x00\x0f\xff", 3); |
77113892 AP |
761 | if (ret) |
762 | goto err; | |
763 | ||
e01fc42d | 764 | ret = regmap_bulk_write(dev->regmap, 0x13e, "\x40\x00", 2); |
77113892 AP |
765 | if (ret) |
766 | goto err; | |
767 | ||
e01fc42d | 768 | ret = regmap_bulk_write(dev->regmap, 0x115, "\x06\x3f\xce\xcc", 4); |
77113892 AP |
769 | if (ret) |
770 | goto err; | |
771 | err: | |
772 | return; | |
773 | }; | |
774 | ||
725b7f30 | 775 | static int rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_dev *dev) |
77113892 | 776 | { |
e4e78693 | 777 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
778 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
779 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 AP |
780 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
781 | struct v4l2_ctrl *bandwidth_auto; | |
782 | struct v4l2_ctrl *bandwidth; | |
783 | ||
784 | /* | |
785 | * tuner RF (Hz) | |
786 | */ | |
725b7f30 | 787 | if (dev->f_tuner == 0) |
77113892 AP |
788 | return 0; |
789 | ||
790 | /* | |
791 | * bandwidth (Hz) | |
792 | */ | |
725b7f30 | 793 | bandwidth_auto = v4l2_ctrl_find(&dev->hdl, |
85594960 | 794 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); |
725b7f30 | 795 | bandwidth = v4l2_ctrl_find(&dev->hdl, V4L2_CID_RF_TUNER_BANDWIDTH); |
77113892 | 796 | if (v4l2_ctrl_g_ctrl(bandwidth_auto)) { |
725b7f30 AP |
797 | c->bandwidth_hz = dev->f_adc; |
798 | v4l2_ctrl_s_ctrl(bandwidth, dev->f_adc); | |
77113892 AP |
799 | } else { |
800 | c->bandwidth_hz = v4l2_ctrl_g_ctrl(bandwidth); | |
801 | } | |
802 | ||
725b7f30 | 803 | c->frequency = dev->f_tuner; |
77113892 AP |
804 | c->delivery_system = SYS_DVBT; |
805 | ||
e4e78693 AP |
806 | dev_dbg(&pdev->dev, "frequency=%u bandwidth=%d\n", |
807 | c->frequency, c->bandwidth_hz); | |
77113892 | 808 | |
725b7f30 | 809 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
810 | return 0; |
811 | ||
fc3a0497 AP |
812 | if (!V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) { |
813 | if (fe->ops.tuner_ops.set_params) | |
814 | fe->ops.tuner_ops.set_params(fe); | |
815 | } | |
77113892 AP |
816 | |
817 | return 0; | |
818 | }; | |
819 | ||
725b7f30 | 820 | static int rtl2832_sdr_set_tuner(struct rtl2832_sdr_dev *dev) |
77113892 | 821 | { |
e4e78693 | 822 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
823 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
824 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 | 825 | |
e4e78693 | 826 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
827 | |
828 | if (fe->ops.tuner_ops.init) | |
829 | fe->ops.tuner_ops.init(fe); | |
830 | ||
831 | return 0; | |
832 | }; | |
833 | ||
725b7f30 | 834 | static void rtl2832_sdr_unset_tuner(struct rtl2832_sdr_dev *dev) |
77113892 | 835 | { |
e4e78693 | 836 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
837 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
838 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 | 839 | |
e4e78693 | 840 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
841 | |
842 | if (fe->ops.tuner_ops.sleep) | |
843 | fe->ops.tuner_ops.sleep(fe); | |
844 | ||
845 | return; | |
846 | }; | |
847 | ||
848 | static int rtl2832_sdr_start_streaming(struct vb2_queue *vq, unsigned int count) | |
849 | { | |
725b7f30 | 850 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 851 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
852 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
853 | struct dvb_usb_device *d = pdata->dvb_usb_device; | |
77113892 | 854 | int ret; |
941a8204 | 855 | |
e4e78693 | 856 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 857 | |
725b7f30 | 858 | if (!dev->udev) |
77113892 AP |
859 | return -ENODEV; |
860 | ||
725b7f30 | 861 | if (mutex_lock_interruptible(&dev->v4l2_lock)) |
77113892 AP |
862 | return -ERESTARTSYS; |
863 | ||
3bda2bf1 AP |
864 | if (d->props->power_ctrl) |
865 | d->props->power_ctrl(d, 1); | |
77113892 | 866 | |
2281c824 | 867 | /* enable ADC */ |
3bda2bf1 AP |
868 | if (d->props->frontend_ctrl) |
869 | d->props->frontend_ctrl(pdata->dvb_frontend, 1); | |
2281c824 | 870 | |
725b7f30 | 871 | set_bit(POWER_ON, &dev->flags); |
77113892 | 872 | |
fc3a0497 AP |
873 | /* wake-up tuner */ |
874 | if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power)) | |
875 | ret = v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 1); | |
876 | else | |
877 | ret = rtl2832_sdr_set_tuner(dev); | |
77113892 AP |
878 | if (ret) |
879 | goto err; | |
880 | ||
725b7f30 | 881 | ret = rtl2832_sdr_set_tuner_freq(dev); |
77113892 AP |
882 | if (ret) |
883 | goto err; | |
884 | ||
725b7f30 | 885 | ret = rtl2832_sdr_set_adc(dev); |
77113892 AP |
886 | if (ret) |
887 | goto err; | |
888 | ||
725b7f30 | 889 | ret = rtl2832_sdr_alloc_stream_bufs(dev); |
77113892 AP |
890 | if (ret) |
891 | goto err; | |
892 | ||
725b7f30 | 893 | ret = rtl2832_sdr_alloc_urbs(dev); |
77113892 AP |
894 | if (ret) |
895 | goto err; | |
896 | ||
725b7f30 | 897 | dev->sequence = 0; |
bc908754 | 898 | |
725b7f30 | 899 | ret = rtl2832_sdr_submit_urbs(dev); |
77113892 AP |
900 | if (ret) |
901 | goto err; | |
902 | ||
903 | err: | |
725b7f30 | 904 | mutex_unlock(&dev->v4l2_lock); |
77113892 AP |
905 | |
906 | return ret; | |
907 | } | |
908 | ||
e37559b2 | 909 | static void rtl2832_sdr_stop_streaming(struct vb2_queue *vq) |
77113892 | 910 | { |
725b7f30 | 911 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 912 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
913 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
914 | struct dvb_usb_device *d = pdata->dvb_usb_device; | |
941a8204 | 915 | |
e4e78693 | 916 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 917 | |
725b7f30 | 918 | mutex_lock(&dev->v4l2_lock); |
77113892 | 919 | |
725b7f30 AP |
920 | rtl2832_sdr_kill_urbs(dev); |
921 | rtl2832_sdr_free_urbs(dev); | |
922 | rtl2832_sdr_free_stream_bufs(dev); | |
923 | rtl2832_sdr_cleanup_queued_bufs(dev); | |
924 | rtl2832_sdr_unset_adc(dev); | |
fc3a0497 AP |
925 | |
926 | /* sleep tuner */ | |
927 | if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power)) | |
928 | v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 0); | |
929 | else | |
930 | rtl2832_sdr_unset_tuner(dev); | |
77113892 | 931 | |
725b7f30 | 932 | clear_bit(POWER_ON, &dev->flags); |
2281c824 AP |
933 | |
934 | /* disable ADC */ | |
3bda2bf1 AP |
935 | if (d->props->frontend_ctrl) |
936 | d->props->frontend_ctrl(pdata->dvb_frontend, 0); | |
77113892 | 937 | |
3bda2bf1 AP |
938 | if (d->props->power_ctrl) |
939 | d->props->power_ctrl(d, 0); | |
77113892 | 940 | |
725b7f30 | 941 | mutex_unlock(&dev->v4l2_lock); |
77113892 AP |
942 | } |
943 | ||
dd93e79c | 944 | static const struct vb2_ops rtl2832_sdr_vb2_ops = { |
77113892 AP |
945 | .queue_setup = rtl2832_sdr_queue_setup, |
946 | .buf_prepare = rtl2832_sdr_buf_prepare, | |
947 | .buf_queue = rtl2832_sdr_buf_queue, | |
948 | .start_streaming = rtl2832_sdr_start_streaming, | |
949 | .stop_streaming = rtl2832_sdr_stop_streaming, | |
950 | .wait_prepare = vb2_ops_wait_prepare, | |
951 | .wait_finish = vb2_ops_wait_finish, | |
952 | }; | |
953 | ||
954 | static int rtl2832_sdr_g_tuner(struct file *file, void *priv, | |
955 | struct v4l2_tuner *v) | |
956 | { | |
725b7f30 | 957 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 958 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 959 | int ret; |
941a8204 | 960 | |
e4e78693 | 961 | dev_dbg(&pdev->dev, "index=%d type=%d\n", v->index, v->type); |
77113892 AP |
962 | |
963 | if (v->index == 0) { | |
c0decac1 | 964 | strscpy(v->name, "ADC: Realtek RTL2832", sizeof(v->name)); |
77113892 AP |
965 | v->type = V4L2_TUNER_ADC; |
966 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
967 | v->rangelow = 300000; | |
968 | v->rangehigh = 3200000; | |
fc3a0497 AP |
969 | ret = 0; |
970 | } else if (v->index == 1 && | |
971 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_tuner)) { | |
972 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_tuner, v); | |
77113892 | 973 | } else if (v->index == 1) { |
c0decac1 | 974 | strscpy(v->name, "RF: <unknown>", sizeof(v->name)); |
77113892 AP |
975 | v->type = V4L2_TUNER_RF; |
976 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
977 | v->rangelow = 50000000; | |
978 | v->rangehigh = 2000000000; | |
fc3a0497 | 979 | ret = 0; |
77113892 | 980 | } else { |
fc3a0497 | 981 | ret = -EINVAL; |
77113892 | 982 | } |
fc3a0497 | 983 | return ret; |
77113892 AP |
984 | } |
985 | ||
986 | static int rtl2832_sdr_s_tuner(struct file *file, void *priv, | |
987 | const struct v4l2_tuner *v) | |
988 | { | |
725b7f30 | 989 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 990 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 991 | int ret; |
941a8204 | 992 | |
e4e78693 | 993 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 994 | |
fc3a0497 AP |
995 | if (v->index == 0) { |
996 | ret = 0; | |
997 | } else if (v->index == 1 && | |
998 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_tuner)) { | |
999 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_tuner, v); | |
1000 | } else if (v->index == 1) { | |
1001 | ret = 0; | |
1002 | } else { | |
1003 | ret = -EINVAL; | |
1004 | } | |
1005 | return ret; | |
77113892 AP |
1006 | } |
1007 | ||
1008 | static int rtl2832_sdr_enum_freq_bands(struct file *file, void *priv, | |
1009 | struct v4l2_frequency_band *band) | |
1010 | { | |
725b7f30 | 1011 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1012 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 1013 | int ret; |
941a8204 | 1014 | |
e4e78693 AP |
1015 | dev_dbg(&pdev->dev, "tuner=%d type=%d index=%d\n", |
1016 | band->tuner, band->type, band->index); | |
77113892 AP |
1017 | |
1018 | if (band->tuner == 0) { | |
1019 | if (band->index >= ARRAY_SIZE(bands_adc)) | |
1020 | return -EINVAL; | |
1021 | ||
1022 | *band = bands_adc[band->index]; | |
fc3a0497 AP |
1023 | ret = 0; |
1024 | } else if (band->tuner == 1 && | |
1025 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, enum_freq_bands)) { | |
1026 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, enum_freq_bands, band); | |
77113892 AP |
1027 | } else if (band->tuner == 1) { |
1028 | if (band->index >= ARRAY_SIZE(bands_fm)) | |
1029 | return -EINVAL; | |
1030 | ||
1031 | *band = bands_fm[band->index]; | |
fc3a0497 | 1032 | ret = 0; |
77113892 | 1033 | } else { |
fc3a0497 | 1034 | ret = -EINVAL; |
77113892 | 1035 | } |
fc3a0497 | 1036 | return ret; |
77113892 AP |
1037 | } |
1038 | ||
1039 | static int rtl2832_sdr_g_frequency(struct file *file, void *priv, | |
1040 | struct v4l2_frequency *f) | |
1041 | { | |
725b7f30 | 1042 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1043 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 1044 | int ret; |
941a8204 | 1045 | |
e4e78693 | 1046 | dev_dbg(&pdev->dev, "tuner=%d type=%d\n", f->tuner, f->type); |
77113892 | 1047 | |
bc908754 | 1048 | if (f->tuner == 0) { |
725b7f30 | 1049 | f->frequency = dev->f_adc; |
bc908754 | 1050 | f->type = V4L2_TUNER_ADC; |
fc3a0497 AP |
1051 | ret = 0; |
1052 | } else if (f->tuner == 1 && | |
1053 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_frequency)) { | |
1054 | f->type = V4L2_TUNER_RF; | |
1055 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_frequency, f); | |
bc908754 | 1056 | } else if (f->tuner == 1) { |
725b7f30 | 1057 | f->frequency = dev->f_tuner; |
bc908754 | 1058 | f->type = V4L2_TUNER_RF; |
fc3a0497 | 1059 | ret = 0; |
bc908754 | 1060 | } else { |
fc3a0497 | 1061 | ret = -EINVAL; |
bc908754 | 1062 | } |
77113892 AP |
1063 | return ret; |
1064 | } | |
1065 | ||
1066 | static int rtl2832_sdr_s_frequency(struct file *file, void *priv, | |
1067 | const struct v4l2_frequency *f) | |
1068 | { | |
725b7f30 | 1069 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1070 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
1071 | int ret, band; |
1072 | ||
e4e78693 AP |
1073 | dev_dbg(&pdev->dev, "tuner=%d type=%d frequency=%u\n", |
1074 | f->tuner, f->type, f->frequency); | |
77113892 AP |
1075 | |
1076 | /* ADC band midpoints */ | |
1077 | #define BAND_ADC_0 ((bands_adc[0].rangehigh + bands_adc[1].rangelow) / 2) | |
1078 | #define BAND_ADC_1 ((bands_adc[1].rangehigh + bands_adc[2].rangelow) / 2) | |
1079 | ||
1080 | if (f->tuner == 0 && f->type == V4L2_TUNER_ADC) { | |
1081 | if (f->frequency < BAND_ADC_0) | |
1082 | band = 0; | |
1083 | else if (f->frequency < BAND_ADC_1) | |
1084 | band = 1; | |
1085 | else | |
1086 | band = 2; | |
1087 | ||
725b7f30 | 1088 | dev->f_adc = clamp_t(unsigned int, f->frequency, |
fc3a0497 AP |
1089 | bands_adc[band].rangelow, |
1090 | bands_adc[band].rangehigh); | |
77113892 | 1091 | |
e4e78693 | 1092 | dev_dbg(&pdev->dev, "ADC frequency=%u Hz\n", dev->f_adc); |
725b7f30 | 1093 | ret = rtl2832_sdr_set_adc(dev); |
fc3a0497 AP |
1094 | } else if (f->tuner == 1 && |
1095 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) { | |
1096 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_frequency, f); | |
77113892 | 1097 | } else if (f->tuner == 1) { |
725b7f30 | 1098 | dev->f_tuner = clamp_t(unsigned int, f->frequency, |
bc908754 HV |
1099 | bands_fm[0].rangelow, |
1100 | bands_fm[0].rangehigh); | |
e4e78693 | 1101 | dev_dbg(&pdev->dev, "RF frequency=%u Hz\n", f->frequency); |
77113892 | 1102 | |
725b7f30 | 1103 | ret = rtl2832_sdr_set_tuner_freq(dev); |
77113892 AP |
1104 | } else { |
1105 | ret = -EINVAL; | |
1106 | } | |
77113892 AP |
1107 | return ret; |
1108 | } | |
1109 | ||
1110 | static int rtl2832_sdr_enum_fmt_sdr_cap(struct file *file, void *priv, | |
1111 | struct v4l2_fmtdesc *f) | |
1112 | { | |
725b7f30 | 1113 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1114 | struct platform_device *pdev = dev->pdev; |
941a8204 | 1115 | |
e4e78693 | 1116 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 1117 | |
725b7f30 | 1118 | if (f->index >= dev->num_formats) |
77113892 AP |
1119 | return -EINVAL; |
1120 | ||
77113892 AP |
1121 | f->pixelformat = formats[f->index].pixelformat; |
1122 | ||
1123 | return 0; | |
1124 | } | |
1125 | ||
1126 | static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv, | |
1127 | struct v4l2_format *f) | |
1128 | { | |
725b7f30 | 1129 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1130 | struct platform_device *pdev = dev->pdev; |
941a8204 | 1131 | |
e4e78693 | 1132 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 1133 | |
725b7f30 AP |
1134 | f->fmt.sdr.pixelformat = dev->pixelformat; |
1135 | f->fmt.sdr.buffersize = dev->buffersize; | |
d57fe404 | 1136 | |
77113892 AP |
1137 | return 0; |
1138 | } | |
1139 | ||
1140 | static int rtl2832_sdr_s_fmt_sdr_cap(struct file *file, void *priv, | |
1141 | struct v4l2_format *f) | |
1142 | { | |
725b7f30 | 1143 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1144 | struct platform_device *pdev = dev->pdev; |
725b7f30 | 1145 | struct vb2_queue *q = &dev->vb_queue; |
77113892 | 1146 | int i; |
941a8204 | 1147 | |
e4e78693 AP |
1148 | dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n", |
1149 | (char *)&f->fmt.sdr.pixelformat); | |
77113892 AP |
1150 | |
1151 | if (vb2_is_busy(q)) | |
1152 | return -EBUSY; | |
1153 | ||
725b7f30 | 1154 | for (i = 0; i < dev->num_formats; i++) { |
77113892 | 1155 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
725b7f30 AP |
1156 | dev->pixelformat = formats[i].pixelformat; |
1157 | dev->buffersize = formats[i].buffersize; | |
d57fe404 | 1158 | f->fmt.sdr.buffersize = formats[i].buffersize; |
77113892 AP |
1159 | return 0; |
1160 | } | |
1161 | } | |
1162 | ||
725b7f30 AP |
1163 | dev->pixelformat = formats[0].pixelformat; |
1164 | dev->buffersize = formats[0].buffersize; | |
d57fe404 AP |
1165 | f->fmt.sdr.pixelformat = formats[0].pixelformat; |
1166 | f->fmt.sdr.buffersize = formats[0].buffersize; | |
77113892 AP |
1167 | |
1168 | return 0; | |
1169 | } | |
1170 | ||
1171 | static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv, | |
1172 | struct v4l2_format *f) | |
1173 | { | |
725b7f30 | 1174 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1175 | struct platform_device *pdev = dev->pdev; |
77113892 | 1176 | int i; |
941a8204 | 1177 | |
e4e78693 AP |
1178 | dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n", |
1179 | (char *)&f->fmt.sdr.pixelformat); | |
77113892 | 1180 | |
725b7f30 | 1181 | for (i = 0; i < dev->num_formats; i++) { |
d57fe404 AP |
1182 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
1183 | f->fmt.sdr.buffersize = formats[i].buffersize; | |
77113892 | 1184 | return 0; |
d57fe404 | 1185 | } |
77113892 AP |
1186 | } |
1187 | ||
1188 | f->fmt.sdr.pixelformat = formats[0].pixelformat; | |
d57fe404 | 1189 | f->fmt.sdr.buffersize = formats[0].buffersize; |
77113892 AP |
1190 | |
1191 | return 0; | |
1192 | } | |
1193 | ||
1194 | static const struct v4l2_ioctl_ops rtl2832_sdr_ioctl_ops = { | |
1195 | .vidioc_querycap = rtl2832_sdr_querycap, | |
1196 | ||
1197 | .vidioc_enum_fmt_sdr_cap = rtl2832_sdr_enum_fmt_sdr_cap, | |
1198 | .vidioc_g_fmt_sdr_cap = rtl2832_sdr_g_fmt_sdr_cap, | |
1199 | .vidioc_s_fmt_sdr_cap = rtl2832_sdr_s_fmt_sdr_cap, | |
1200 | .vidioc_try_fmt_sdr_cap = rtl2832_sdr_try_fmt_sdr_cap, | |
1201 | ||
1202 | .vidioc_reqbufs = vb2_ioctl_reqbufs, | |
1203 | .vidioc_create_bufs = vb2_ioctl_create_bufs, | |
1204 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
1205 | .vidioc_querybuf = vb2_ioctl_querybuf, | |
1206 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
1207 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
1208 | ||
1209 | .vidioc_streamon = vb2_ioctl_streamon, | |
1210 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
1211 | ||
1212 | .vidioc_g_tuner = rtl2832_sdr_g_tuner, | |
1213 | .vidioc_s_tuner = rtl2832_sdr_s_tuner, | |
1214 | ||
1215 | .vidioc_enum_freq_bands = rtl2832_sdr_enum_freq_bands, | |
1216 | .vidioc_g_frequency = rtl2832_sdr_g_frequency, | |
1217 | .vidioc_s_frequency = rtl2832_sdr_s_frequency, | |
1218 | ||
1219 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1220 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
1221 | .vidioc_log_status = v4l2_ctrl_log_status, | |
1222 | }; | |
1223 | ||
1224 | static const struct v4l2_file_operations rtl2832_sdr_fops = { | |
1225 | .owner = THIS_MODULE, | |
1226 | .open = v4l2_fh_open, | |
1227 | .release = vb2_fop_release, | |
1228 | .read = vb2_fop_read, | |
1229 | .poll = vb2_fop_poll, | |
1230 | .mmap = vb2_fop_mmap, | |
1231 | .unlocked_ioctl = video_ioctl2, | |
1232 | }; | |
1233 | ||
1234 | static struct video_device rtl2832_sdr_template = { | |
1235 | .name = "Realtek RTL2832 SDR", | |
1236 | .release = video_device_release_empty, | |
1237 | .fops = &rtl2832_sdr_fops, | |
1238 | .ioctl_ops = &rtl2832_sdr_ioctl_ops, | |
372332b1 HV |
1239 | .device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | |
1240 | V4L2_CAP_READWRITE | V4L2_CAP_TUNER, | |
77113892 AP |
1241 | }; |
1242 | ||
1243 | static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl) | |
1244 | { | |
725b7f30 AP |
1245 | struct rtl2832_sdr_dev *dev = |
1246 | container_of(ctrl->handler, struct rtl2832_sdr_dev, | |
77113892 | 1247 | hdl); |
e4e78693 | 1248 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
1249 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
1250 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 AP |
1251 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1252 | int ret; | |
941a8204 | 1253 | |
e4e78693 AP |
1254 | dev_dbg(&pdev->dev, "id=%d name=%s val=%d min=%lld max=%lld step=%lld\n", |
1255 | ctrl->id, ctrl->name, ctrl->val, ctrl->minimum, ctrl->maximum, | |
1256 | ctrl->step); | |
77113892 AP |
1257 | |
1258 | switch (ctrl->id) { | |
1259 | case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: | |
1260 | case V4L2_CID_RF_TUNER_BANDWIDTH: | |
ea4d04f9 | 1261 | /* TODO: these controls should be moved to tuner drivers */ |
725b7f30 | 1262 | if (dev->bandwidth_auto->val) { |
ea4d04f9 | 1263 | /* Round towards the closest legal value */ |
725b7f30 | 1264 | s32 val = dev->f_adc + div_u64(dev->bandwidth->step, 2); |
ea4d04f9 | 1265 | u32 offset; |
941a8204 | 1266 | |
725b7f30 AP |
1267 | val = clamp_t(s32, val, dev->bandwidth->minimum, |
1268 | dev->bandwidth->maximum); | |
1269 | offset = val - dev->bandwidth->minimum; | |
1270 | offset = dev->bandwidth->step * | |
1271 | div_u64(offset, dev->bandwidth->step); | |
1272 | dev->bandwidth->val = dev->bandwidth->minimum + offset; | |
ea4d04f9 | 1273 | } |
725b7f30 | 1274 | c->bandwidth_hz = dev->bandwidth->val; |
77113892 | 1275 | |
725b7f30 | 1276 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
1277 | return 0; |
1278 | ||
1279 | if (fe->ops.tuner_ops.set_params) | |
1280 | ret = fe->ops.tuner_ops.set_params(fe); | |
1281 | else | |
1282 | ret = 0; | |
1283 | break; | |
1284 | default: | |
1285 | ret = -EINVAL; | |
1286 | } | |
1287 | ||
1288 | return ret; | |
1289 | } | |
1290 | ||
1291 | static const struct v4l2_ctrl_ops rtl2832_sdr_ctrl_ops = { | |
1292 | .s_ctrl = rtl2832_sdr_s_ctrl, | |
1293 | }; | |
1294 | ||
1295 | static void rtl2832_sdr_video_release(struct v4l2_device *v) | |
1296 | { | |
725b7f30 AP |
1297 | struct rtl2832_sdr_dev *dev = |
1298 | container_of(v, struct rtl2832_sdr_dev, v4l2_dev); | |
63bdab5d AP |
1299 | struct platform_device *pdev = dev->pdev; |
1300 | ||
1301 | dev_dbg(&pdev->dev, "\n"); | |
77113892 | 1302 | |
725b7f30 AP |
1303 | v4l2_ctrl_handler_free(&dev->hdl); |
1304 | v4l2_device_unregister(&dev->v4l2_dev); | |
1305 | kfree(dev); | |
77113892 AP |
1306 | } |
1307 | ||
63bdab5d AP |
1308 | /* Platform driver interface */ |
1309 | static int rtl2832_sdr_probe(struct platform_device *pdev) | |
77113892 | 1310 | { |
725b7f30 | 1311 | struct rtl2832_sdr_dev *dev; |
63bdab5d | 1312 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
77113892 | 1313 | const struct v4l2_ctrl_ops *ops = &rtl2832_sdr_ctrl_ops; |
63bdab5d AP |
1314 | struct v4l2_subdev *subdev; |
1315 | int ret; | |
77113892 | 1316 | |
63bdab5d AP |
1317 | dev_dbg(&pdev->dev, "\n"); |
1318 | ||
1319 | if (!pdata) { | |
1320 | dev_err(&pdev->dev, "Cannot proceed without platform data\n"); | |
1321 | ret = -EINVAL; | |
1322 | goto err; | |
1323 | } | |
d5eec231 AP |
1324 | if (!pdev->dev.parent->driver) { |
1325 | dev_dbg(&pdev->dev, "No parent device\n"); | |
1326 | ret = -EINVAL; | |
1327 | goto err; | |
1328 | } | |
1329 | /* try to refcount host drv since we are the consumer */ | |
1330 | if (!try_module_get(pdev->dev.parent->driver->owner)) { | |
1331 | dev_err(&pdev->dev, "Refcount fail"); | |
1332 | ret = -EINVAL; | |
1333 | goto err; | |
1334 | } | |
63bdab5d | 1335 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
725b7f30 | 1336 | if (dev == NULL) { |
63bdab5d | 1337 | ret = -ENOMEM; |
d5eec231 | 1338 | goto err_module_put; |
77113892 AP |
1339 | } |
1340 | ||
1341 | /* setup the state */ | |
63bdab5d | 1342 | subdev = pdata->v4l2_subdev; |
fc3a0497 | 1343 | dev->v4l2_subdev = pdata->v4l2_subdev; |
63bdab5d | 1344 | dev->pdev = pdev; |
e01fc42d | 1345 | dev->regmap = pdata->regmap; |
63bdab5d | 1346 | dev->udev = pdata->dvb_usb_device->udev; |
725b7f30 AP |
1347 | dev->f_adc = bands_adc[0].rangelow; |
1348 | dev->f_tuner = bands_fm[0].rangelow; | |
1349 | dev->pixelformat = formats[0].pixelformat; | |
1350 | dev->buffersize = formats[0].buffersize; | |
1351 | dev->num_formats = NUM_FORMATS; | |
2fe15e20 | 1352 | if (!rtl2832_sdr_emulated_fmt) |
725b7f30 | 1353 | dev->num_formats -= 1; |
77113892 | 1354 | |
725b7f30 AP |
1355 | mutex_init(&dev->v4l2_lock); |
1356 | mutex_init(&dev->vb_queue_lock); | |
1357 | spin_lock_init(&dev->queued_bufs_lock); | |
1358 | INIT_LIST_HEAD(&dev->queued_bufs); | |
77113892 AP |
1359 | |
1360 | /* Init videobuf2 queue structure */ | |
725b7f30 AP |
1361 | dev->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; |
1362 | dev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; | |
1363 | dev->vb_queue.drv_priv = dev; | |
1364 | dev->vb_queue.buf_struct_size = sizeof(struct rtl2832_sdr_frame_buf); | |
1365 | dev->vb_queue.ops = &rtl2832_sdr_vb2_ops; | |
1366 | dev->vb_queue.mem_ops = &vb2_vmalloc_memops; | |
1367 | dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
1368 | ret = vb2_queue_init(&dev->vb_queue); | |
77113892 | 1369 | if (ret) { |
63bdab5d AP |
1370 | dev_err(&pdev->dev, "Could not initialize vb2 queue\n"); |
1371 | goto err_kfree; | |
77113892 AP |
1372 | } |
1373 | ||
1374 | /* Register controls */ | |
63bdab5d AP |
1375 | switch (pdata->tuner) { |
1376 | case RTL2832_SDR_TUNER_E4000: | |
725b7f30 | 1377 | v4l2_ctrl_handler_init(&dev->hdl, 9); |
63bdab5d | 1378 | if (subdev) |
da1b1aea HV |
1379 | v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler, |
1380 | NULL, true); | |
77113892 | 1381 | break; |
63bdab5d AP |
1382 | case RTL2832_SDR_TUNER_R820T: |
1383 | case RTL2832_SDR_TUNER_R828D: | |
725b7f30 AP |
1384 | v4l2_ctrl_handler_init(&dev->hdl, 2); |
1385 | dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops, | |
63bdab5d AP |
1386 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
1387 | 0, 1, 1, 1); | |
725b7f30 | 1388 | dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops, |
63bdab5d AP |
1389 | V4L2_CID_RF_TUNER_BANDWIDTH, |
1390 | 0, 8000000, 100000, 0); | |
725b7f30 | 1391 | v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); |
77113892 | 1392 | break; |
63bdab5d AP |
1393 | case RTL2832_SDR_TUNER_FC0012: |
1394 | case RTL2832_SDR_TUNER_FC0013: | |
725b7f30 AP |
1395 | v4l2_ctrl_handler_init(&dev->hdl, 2); |
1396 | dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops, | |
63bdab5d AP |
1397 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
1398 | 0, 1, 1, 1); | |
725b7f30 | 1399 | dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops, |
63bdab5d AP |
1400 | V4L2_CID_RF_TUNER_BANDWIDTH, |
1401 | 6000000, 8000000, 1000000, | |
1402 | 6000000); | |
725b7f30 | 1403 | v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); |
77113892 | 1404 | break; |
fc3a0497 AP |
1405 | case RTL2832_SDR_TUNER_FC2580: |
1406 | v4l2_ctrl_handler_init(&dev->hdl, 2); | |
1407 | if (subdev) | |
1408 | v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler, | |
da1b1aea | 1409 | NULL, true); |
fc3a0497 | 1410 | break; |
77113892 | 1411 | default: |
725b7f30 | 1412 | v4l2_ctrl_handler_init(&dev->hdl, 0); |
63bdab5d | 1413 | dev_err(&pdev->dev, "Unsupported tuner\n"); |
ce5d72b6 | 1414 | ret = -ENODEV; |
63bdab5d | 1415 | goto err_v4l2_ctrl_handler_free; |
77113892 | 1416 | } |
725b7f30 AP |
1417 | if (dev->hdl.error) { |
1418 | ret = dev->hdl.error; | |
63bdab5d AP |
1419 | dev_err(&pdev->dev, "Could not initialize controls\n"); |
1420 | goto err_v4l2_ctrl_handler_free; | |
77113892 AP |
1421 | } |
1422 | ||
1423 | /* Init video_device structure */ | |
725b7f30 AP |
1424 | dev->vdev = rtl2832_sdr_template; |
1425 | dev->vdev.queue = &dev->vb_queue; | |
1426 | dev->vdev.queue->lock = &dev->vb_queue_lock; | |
1427 | video_set_drvdata(&dev->vdev, dev); | |
77113892 AP |
1428 | |
1429 | /* Register the v4l2_device structure */ | |
725b7f30 | 1430 | dev->v4l2_dev.release = rtl2832_sdr_video_release; |
e4e78693 | 1431 | ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); |
77113892 | 1432 | if (ret) { |
63bdab5d AP |
1433 | dev_err(&pdev->dev, "Failed to register v4l2-device %d\n", ret); |
1434 | goto err_v4l2_ctrl_handler_free; | |
77113892 AP |
1435 | } |
1436 | ||
725b7f30 AP |
1437 | dev->v4l2_dev.ctrl_handler = &dev->hdl; |
1438 | dev->vdev.v4l2_dev = &dev->v4l2_dev; | |
1439 | dev->vdev.lock = &dev->v4l2_lock; | |
1440 | dev->vdev.vfl_dir = VFL_DIR_RX; | |
77113892 | 1441 | |
725b7f30 | 1442 | ret = video_register_device(&dev->vdev, VFL_TYPE_SDR, -1); |
77113892 | 1443 | if (ret) { |
63bdab5d AP |
1444 | dev_err(&pdev->dev, "Failed to register as video device %d\n", |
1445 | ret); | |
1446 | goto err_v4l2_device_unregister; | |
77113892 | 1447 | } |
63bdab5d AP |
1448 | dev_info(&pdev->dev, "Registered as %s\n", |
1449 | video_device_node_name(&dev->vdev)); | |
1450 | dev_info(&pdev->dev, "Realtek RTL2832 SDR attached\n"); | |
1451 | dev_notice(&pdev->dev, | |
1452 | "SDR API is still slightly experimental and functionality changes may follow\n"); | |
1453 | platform_set_drvdata(pdev, dev); | |
1454 | return 0; | |
1455 | err_v4l2_device_unregister: | |
725b7f30 | 1456 | v4l2_device_unregister(&dev->v4l2_dev); |
63bdab5d | 1457 | err_v4l2_ctrl_handler_free: |
725b7f30 | 1458 | v4l2_ctrl_handler_free(&dev->hdl); |
63bdab5d | 1459 | err_kfree: |
725b7f30 | 1460 | kfree(dev); |
d5eec231 AP |
1461 | err_module_put: |
1462 | module_put(pdev->dev.parent->driver->owner); | |
63bdab5d AP |
1463 | err: |
1464 | return ret; | |
77113892 | 1465 | } |
63bdab5d | 1466 | |
297bb597 | 1467 | static void rtl2832_sdr_remove(struct platform_device *pdev) |
63bdab5d AP |
1468 | { |
1469 | struct rtl2832_sdr_dev *dev = platform_get_drvdata(pdev); | |
1470 | ||
1471 | dev_dbg(&pdev->dev, "\n"); | |
1472 | ||
1473 | mutex_lock(&dev->vb_queue_lock); | |
1474 | mutex_lock(&dev->v4l2_lock); | |
1475 | /* No need to keep the urbs around after disconnection */ | |
1476 | dev->udev = NULL; | |
1477 | v4l2_device_disconnect(&dev->v4l2_dev); | |
1478 | video_unregister_device(&dev->vdev); | |
1479 | mutex_unlock(&dev->v4l2_lock); | |
1480 | mutex_unlock(&dev->vb_queue_lock); | |
63bdab5d | 1481 | v4l2_device_put(&dev->v4l2_dev); |
d5eec231 | 1482 | module_put(pdev->dev.parent->driver->owner); |
63bdab5d AP |
1483 | } |
1484 | ||
1485 | static struct platform_driver rtl2832_sdr_driver = { | |
1486 | .driver = { | |
1487 | .name = "rtl2832_sdr", | |
63bdab5d AP |
1488 | }, |
1489 | .probe = rtl2832_sdr_probe, | |
297bb597 | 1490 | .remove_new = rtl2832_sdr_remove, |
63bdab5d AP |
1491 | }; |
1492 | module_platform_driver(rtl2832_sdr_driver); | |
77113892 AP |
1493 | |
1494 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
1495 | MODULE_DESCRIPTION("Realtek RTL2832 SDR driver"); | |
1496 | MODULE_LICENSE("GPL"); |