Commit | Line | Data |
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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> | |
38 | ||
2970c0d5 AP |
39 | static bool rtl2832_sdr_emulated_fmt; |
40 | module_param_named(emulated_formats, rtl2832_sdr_emulated_fmt, bool, 0644); | |
41 | MODULE_PARM_DESC(emulated_formats, "enable emulated formats (disappears in future)"); | |
42 | ||
fc3a0497 AP |
43 | /* Original macro does not contain enough null pointer checks for our need */ |
44 | #define V4L2_SUBDEV_HAS_OP(sd, o, f) \ | |
45 | ((sd) && (sd)->ops && (sd)->ops->o && (sd)->ops->o->f) | |
46 | ||
77113892 AP |
47 | #define MAX_BULK_BUFS (10) |
48 | #define BULK_BUFFER_SIZE (128 * 512) | |
49 | ||
50 | static const struct v4l2_frequency_band bands_adc[] = { | |
51 | { | |
52 | .tuner = 0, | |
53 | .type = V4L2_TUNER_ADC, | |
54 | .index = 0, | |
55 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
56 | .rangelow = 300000, | |
57 | .rangehigh = 300000, | |
58 | }, | |
59 | { | |
60 | .tuner = 0, | |
61 | .type = V4L2_TUNER_ADC, | |
62 | .index = 1, | |
63 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
64 | .rangelow = 900001, | |
65 | .rangehigh = 2800000, | |
66 | }, | |
67 | { | |
68 | .tuner = 0, | |
69 | .type = V4L2_TUNER_ADC, | |
70 | .index = 2, | |
71 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
72 | .rangelow = 3200000, | |
73 | .rangehigh = 3200000, | |
74 | }, | |
75 | }; | |
76 | ||
77 | static const struct v4l2_frequency_band bands_fm[] = { | |
78 | { | |
79 | .tuner = 1, | |
80 | .type = V4L2_TUNER_RF, | |
81 | .index = 0, | |
82 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, | |
83 | .rangelow = 50000000, | |
84 | .rangehigh = 2000000000, | |
85 | }, | |
86 | }; | |
87 | ||
88 | /* stream formats */ | |
89 | struct rtl2832_sdr_format { | |
90 | char *name; | |
91 | u32 pixelformat; | |
d57fe404 | 92 | u32 buffersize; |
77113892 AP |
93 | }; |
94 | ||
95 | static struct rtl2832_sdr_format formats[] = { | |
96 | { | |
2970c0d5 | 97 | .name = "Complex U8", |
d57fe404 AP |
98 | .pixelformat = V4L2_SDR_FMT_CU8, |
99 | .buffersize = BULK_BUFFER_SIZE, | |
77113892 | 100 | }, { |
2970c0d5 | 101 | .name = "Complex U16LE (emulated)", |
77113892 | 102 | .pixelformat = V4L2_SDR_FMT_CU16LE, |
d57fe404 | 103 | .buffersize = BULK_BUFFER_SIZE * 2, |
77113892 AP |
104 | }, |
105 | }; | |
106 | ||
107 | static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); | |
108 | ||
109 | /* intermediate buffers with raw data from the USB device */ | |
110 | struct rtl2832_sdr_frame_buf { | |
2d700715 JS |
111 | /* common v4l buffer stuff -- must be first */ |
112 | struct vb2_v4l2_buffer vb; | |
77113892 AP |
113 | struct list_head list; |
114 | }; | |
115 | ||
725b7f30 | 116 | struct rtl2832_sdr_dev { |
e4d131d3 DC |
117 | #define POWER_ON 0 /* BIT(0) */ |
118 | #define URB_BUF 1 /* BIT(1) */ | |
77113892 AP |
119 | unsigned long flags; |
120 | ||
63bdab5d | 121 | struct platform_device *pdev; |
77113892 AP |
122 | |
123 | struct video_device vdev; | |
124 | struct v4l2_device v4l2_dev; | |
fc3a0497 | 125 | struct v4l2_subdev *v4l2_subdev; |
77113892 AP |
126 | |
127 | /* videobuf2 queue and queued buffers list */ | |
128 | struct vb2_queue vb_queue; | |
129 | struct list_head queued_bufs; | |
130 | spinlock_t queued_bufs_lock; /* Protects queued_bufs */ | |
bc908754 | 131 | unsigned sequence; /* buffer sequence counter */ |
77113892 AP |
132 | |
133 | /* Note if taking both locks v4l2_lock must always be locked first! */ | |
134 | struct mutex v4l2_lock; /* Protects everything else */ | |
135 | struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */ | |
136 | ||
137 | /* Pointer to our usb_device, will be NULL after unplug */ | |
138 | struct usb_device *udev; /* Both mutexes most be hold when setting! */ | |
139 | ||
140 | unsigned int vb_full; /* vb is full and packets dropped */ | |
141 | ||
142 | struct urb *urb_list[MAX_BULK_BUFS]; | |
143 | int buf_num; | |
144 | unsigned long buf_size; | |
145 | u8 *buf_list[MAX_BULK_BUFS]; | |
146 | dma_addr_t dma_addr[MAX_BULK_BUFS]; | |
147 | int urbs_initialized; | |
148 | int urbs_submitted; | |
149 | ||
150 | unsigned int f_adc, f_tuner; | |
151 | u32 pixelformat; | |
d57fe404 | 152 | u32 buffersize; |
2970c0d5 | 153 | unsigned int num_formats; |
77113892 AP |
154 | |
155 | /* Controls */ | |
156 | struct v4l2_ctrl_handler hdl; | |
157 | struct v4l2_ctrl *bandwidth_auto; | |
158 | struct v4l2_ctrl *bandwidth; | |
159 | ||
160 | /* for sample rate calc */ | |
161 | unsigned int sample; | |
162 | unsigned int sample_measured; | |
163 | unsigned long jiffies_next; | |
164 | }; | |
165 | ||
77113892 | 166 | /* write multiple registers */ |
725b7f30 | 167 | static int rtl2832_sdr_wr_regs(struct rtl2832_sdr_dev *dev, u16 reg, |
77113892 AP |
168 | const u8 *val, int len) |
169 | { | |
63bdab5d AP |
170 | struct platform_device *pdev = dev->pdev; |
171 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
172 | struct i2c_client *client = pdata->i2c_client; | |
77113892 | 173 | |
63bdab5d | 174 | return pdata->bulk_write(client, reg, val, len); |
77113892 AP |
175 | } |
176 | ||
63bdab5d | 177 | #if 0 |
77113892 | 178 | /* read multiple registers */ |
725b7f30 | 179 | static int rtl2832_sdr_rd_regs(struct rtl2832_sdr_dev *dev, u16 reg, u8 *val, |
77113892 AP |
180 | int len) |
181 | { | |
63bdab5d AP |
182 | struct platform_device *pdev = dev->pdev; |
183 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
184 | struct i2c_client *client = pdata->i2c_client; | |
77113892 | 185 | |
63bdab5d | 186 | return pdata->bulk_read(client, reg, val, len); |
77113892 | 187 | } |
63bdab5d | 188 | #endif |
77113892 AP |
189 | |
190 | /* write single register */ | |
725b7f30 | 191 | static int rtl2832_sdr_wr_reg(struct rtl2832_sdr_dev *dev, u16 reg, u8 val) |
77113892 | 192 | { |
725b7f30 | 193 | return rtl2832_sdr_wr_regs(dev, reg, &val, 1); |
77113892 AP |
194 | } |
195 | ||
77113892 | 196 | /* write single register with mask */ |
725b7f30 | 197 | static int rtl2832_sdr_wr_reg_mask(struct rtl2832_sdr_dev *dev, u16 reg, |
77113892 AP |
198 | u8 val, u8 mask) |
199 | { | |
63bdab5d AP |
200 | struct platform_device *pdev = dev->pdev; |
201 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
202 | struct i2c_client *client = pdata->i2c_client; | |
77113892 | 203 | |
63bdab5d | 204 | return pdata->update_bits(client, reg, mask, val); |
77113892 | 205 | } |
77113892 AP |
206 | |
207 | /* Private functions */ | |
208 | static struct rtl2832_sdr_frame_buf *rtl2832_sdr_get_next_fill_buf( | |
725b7f30 | 209 | struct rtl2832_sdr_dev *dev) |
77113892 | 210 | { |
abfc8d66 | 211 | unsigned long flags; |
77113892 AP |
212 | struct rtl2832_sdr_frame_buf *buf = NULL; |
213 | ||
725b7f30 AP |
214 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
215 | if (list_empty(&dev->queued_bufs)) | |
77113892 AP |
216 | goto leave; |
217 | ||
725b7f30 | 218 | buf = list_entry(dev->queued_bufs.next, |
77113892 AP |
219 | struct rtl2832_sdr_frame_buf, list); |
220 | list_del(&buf->list); | |
221 | leave: | |
725b7f30 | 222 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); |
77113892 AP |
223 | return buf; |
224 | } | |
225 | ||
725b7f30 | 226 | static unsigned int rtl2832_sdr_convert_stream(struct rtl2832_sdr_dev *dev, |
77113892 AP |
227 | void *dst, const u8 *src, unsigned int src_len) |
228 | { | |
e4e78693 | 229 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
230 | unsigned int dst_len; |
231 | ||
725b7f30 | 232 | if (dev->pixelformat == V4L2_SDR_FMT_CU8) { |
77113892 AP |
233 | /* native stream, no need to convert */ |
234 | memcpy(dst, src, src_len); | |
235 | dst_len = src_len; | |
725b7f30 | 236 | } else if (dev->pixelformat == V4L2_SDR_FMT_CU16LE) { |
77113892 AP |
237 | /* convert u8 to u16 */ |
238 | unsigned int i; | |
239 | u16 *u16dst = dst; | |
941a8204 | 240 | |
77113892 AP |
241 | for (i = 0; i < src_len; i++) |
242 | *u16dst++ = (src[i] << 8) | (src[i] >> 0); | |
243 | dst_len = 2 * src_len; | |
244 | } else { | |
245 | dst_len = 0; | |
246 | } | |
247 | ||
b538a8e8 | 248 | /* calculate sample rate and output it in 10 seconds intervals */ |
725b7f30 | 249 | if (unlikely(time_is_before_jiffies(dev->jiffies_next))) { |
b538a8e8 AP |
250 | #define MSECS 10000UL |
251 | unsigned int msecs = jiffies_to_msecs(jiffies - | |
725b7f30 AP |
252 | dev->jiffies_next + msecs_to_jiffies(MSECS)); |
253 | unsigned int samples = dev->sample - dev->sample_measured; | |
941a8204 | 254 | |
725b7f30 AP |
255 | dev->jiffies_next = jiffies + msecs_to_jiffies(MSECS); |
256 | dev->sample_measured = dev->sample; | |
e4e78693 AP |
257 | dev_dbg(&pdev->dev, |
258 | "slen=%u samples=%u msecs=%u sample rate=%lu\n", | |
259 | src_len, samples, msecs, samples * 1000UL / msecs); | |
77113892 AP |
260 | } |
261 | ||
262 | /* total number of I+Q pairs */ | |
725b7f30 | 263 | dev->sample += src_len / 2; |
77113892 AP |
264 | |
265 | return dst_len; | |
266 | } | |
267 | ||
268 | /* | |
269 | * This gets called for the bulk stream pipe. This is done in interrupt | |
270 | * time, so it has to be fast, not crash, and not stall. Neat. | |
271 | */ | |
272 | static void rtl2832_sdr_urb_complete(struct urb *urb) | |
273 | { | |
725b7f30 | 274 | struct rtl2832_sdr_dev *dev = urb->context; |
e4e78693 | 275 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
276 | struct rtl2832_sdr_frame_buf *fbuf; |
277 | ||
e4e78693 AP |
278 | dev_dbg_ratelimited(&pdev->dev, "status=%d length=%d/%d errors=%d\n", |
279 | urb->status, urb->actual_length, | |
280 | urb->transfer_buffer_length, urb->error_count); | |
77113892 AP |
281 | |
282 | switch (urb->status) { | |
283 | case 0: /* success */ | |
284 | case -ETIMEDOUT: /* NAK */ | |
285 | break; | |
286 | case -ECONNRESET: /* kill */ | |
287 | case -ENOENT: | |
288 | case -ESHUTDOWN: | |
289 | return; | |
290 | default: /* error */ | |
e4e78693 | 291 | dev_err_ratelimited(&pdev->dev, "urb failed=%d\n", urb->status); |
77113892 AP |
292 | break; |
293 | } | |
294 | ||
295 | if (likely(urb->actual_length > 0)) { | |
296 | void *ptr; | |
297 | unsigned int len; | |
298 | /* get free framebuffer */ | |
725b7f30 | 299 | fbuf = rtl2832_sdr_get_next_fill_buf(dev); |
77113892 | 300 | if (unlikely(fbuf == NULL)) { |
725b7f30 | 301 | dev->vb_full++; |
e4e78693 AP |
302 | dev_notice_ratelimited(&pdev->dev, |
303 | "videobuf is full, %d packets dropped\n", | |
304 | dev->vb_full); | |
77113892 AP |
305 | goto skip; |
306 | } | |
307 | ||
308 | /* fill framebuffer */ | |
2d700715 | 309 | ptr = vb2_plane_vaddr(&fbuf->vb.vb2_buf, 0); |
725b7f30 | 310 | len = rtl2832_sdr_convert_stream(dev, ptr, urb->transfer_buffer, |
77113892 | 311 | urb->actual_length); |
2d700715 JS |
312 | vb2_set_plane_payload(&fbuf->vb.vb2_buf, 0, len); |
313 | v4l2_get_timestamp(&fbuf->vb.timestamp); | |
314 | fbuf->vb.sequence = dev->sequence++; | |
315 | vb2_buffer_done(&fbuf->vb.vb2_buf, VB2_BUF_STATE_DONE); | |
77113892 AP |
316 | } |
317 | skip: | |
318 | usb_submit_urb(urb, GFP_ATOMIC); | |
319 | } | |
320 | ||
725b7f30 | 321 | static int rtl2832_sdr_kill_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 322 | { |
e4e78693 | 323 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
324 | int i; |
325 | ||
725b7f30 | 326 | for (i = dev->urbs_submitted - 1; i >= 0; i--) { |
e4e78693 | 327 | dev_dbg(&pdev->dev, "kill urb=%d\n", i); |
77113892 | 328 | /* stop the URB */ |
725b7f30 | 329 | usb_kill_urb(dev->urb_list[i]); |
77113892 | 330 | } |
725b7f30 | 331 | dev->urbs_submitted = 0; |
77113892 AP |
332 | |
333 | return 0; | |
334 | } | |
335 | ||
725b7f30 | 336 | static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 337 | { |
e4e78693 | 338 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
339 | int i, ret; |
340 | ||
725b7f30 | 341 | for (i = 0; i < dev->urbs_initialized; i++) { |
e4e78693 | 342 | dev_dbg(&pdev->dev, "submit urb=%d\n", i); |
725b7f30 | 343 | ret = usb_submit_urb(dev->urb_list[i], GFP_ATOMIC); |
77113892 | 344 | if (ret) { |
e4e78693 AP |
345 | dev_err(&pdev->dev, |
346 | "Could not submit urb no. %d - get them all back\n", | |
347 | i); | |
725b7f30 | 348 | rtl2832_sdr_kill_urbs(dev); |
77113892 AP |
349 | return ret; |
350 | } | |
725b7f30 | 351 | dev->urbs_submitted++; |
77113892 AP |
352 | } |
353 | ||
354 | return 0; | |
355 | } | |
356 | ||
725b7f30 | 357 | static int rtl2832_sdr_free_stream_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 358 | { |
e4e78693 | 359 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 | 360 | |
e4d131d3 | 361 | if (test_bit(URB_BUF, &dev->flags)) { |
725b7f30 AP |
362 | while (dev->buf_num) { |
363 | dev->buf_num--; | |
e4e78693 | 364 | dev_dbg(&pdev->dev, "free buf=%d\n", dev->buf_num); |
725b7f30 AP |
365 | usb_free_coherent(dev->udev, dev->buf_size, |
366 | dev->buf_list[dev->buf_num], | |
367 | dev->dma_addr[dev->buf_num]); | |
77113892 AP |
368 | } |
369 | } | |
e4d131d3 | 370 | clear_bit(URB_BUF, &dev->flags); |
77113892 AP |
371 | |
372 | return 0; | |
373 | } | |
374 | ||
725b7f30 | 375 | static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 376 | { |
e4e78693 | 377 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 | 378 | |
725b7f30 AP |
379 | dev->buf_num = 0; |
380 | dev->buf_size = BULK_BUFFER_SIZE; | |
77113892 | 381 | |
e4e78693 AP |
382 | dev_dbg(&pdev->dev, "all in all I will use %u bytes for streaming\n", |
383 | MAX_BULK_BUFS * BULK_BUFFER_SIZE); | |
77113892 | 384 | |
725b7f30 AP |
385 | for (dev->buf_num = 0; dev->buf_num < MAX_BULK_BUFS; dev->buf_num++) { |
386 | dev->buf_list[dev->buf_num] = usb_alloc_coherent(dev->udev, | |
77113892 | 387 | BULK_BUFFER_SIZE, GFP_ATOMIC, |
725b7f30 AP |
388 | &dev->dma_addr[dev->buf_num]); |
389 | if (!dev->buf_list[dev->buf_num]) { | |
e4e78693 AP |
390 | dev_dbg(&pdev->dev, "alloc buf=%d failed\n", |
391 | dev->buf_num); | |
725b7f30 | 392 | rtl2832_sdr_free_stream_bufs(dev); |
77113892 AP |
393 | return -ENOMEM; |
394 | } | |
395 | ||
e4e78693 AP |
396 | dev_dbg(&pdev->dev, "alloc buf=%d %p (dma %llu)\n", |
397 | dev->buf_num, dev->buf_list[dev->buf_num], | |
398 | (long long)dev->dma_addr[dev->buf_num]); | |
e4d131d3 | 399 | set_bit(URB_BUF, &dev->flags); |
77113892 AP |
400 | } |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
725b7f30 | 405 | static int rtl2832_sdr_free_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 406 | { |
e4e78693 | 407 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
408 | int i; |
409 | ||
725b7f30 | 410 | rtl2832_sdr_kill_urbs(dev); |
77113892 | 411 | |
725b7f30 AP |
412 | for (i = dev->urbs_initialized - 1; i >= 0; i--) { |
413 | if (dev->urb_list[i]) { | |
e4e78693 | 414 | dev_dbg(&pdev->dev, "free urb=%d\n", i); |
77113892 | 415 | /* free the URBs */ |
725b7f30 | 416 | usb_free_urb(dev->urb_list[i]); |
77113892 AP |
417 | } |
418 | } | |
725b7f30 | 419 | dev->urbs_initialized = 0; |
77113892 AP |
420 | |
421 | return 0; | |
422 | } | |
423 | ||
725b7f30 | 424 | static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_dev *dev) |
77113892 | 425 | { |
e4e78693 | 426 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
427 | int i, j; |
428 | ||
429 | /* allocate the URBs */ | |
430 | for (i = 0; i < MAX_BULK_BUFS; i++) { | |
e4e78693 | 431 | dev_dbg(&pdev->dev, "alloc urb=%d\n", i); |
725b7f30 AP |
432 | dev->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC); |
433 | if (!dev->urb_list[i]) { | |
e4e78693 | 434 | dev_dbg(&pdev->dev, "failed\n"); |
77113892 | 435 | for (j = 0; j < i; j++) |
725b7f30 | 436 | usb_free_urb(dev->urb_list[j]); |
77113892 AP |
437 | return -ENOMEM; |
438 | } | |
725b7f30 AP |
439 | usb_fill_bulk_urb(dev->urb_list[i], |
440 | dev->udev, | |
441 | usb_rcvbulkpipe(dev->udev, 0x81), | |
442 | dev->buf_list[i], | |
77113892 | 443 | BULK_BUFFER_SIZE, |
725b7f30 | 444 | rtl2832_sdr_urb_complete, dev); |
77113892 | 445 | |
725b7f30 AP |
446 | dev->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; |
447 | dev->urb_list[i]->transfer_dma = dev->dma_addr[i]; | |
448 | dev->urbs_initialized++; | |
77113892 AP |
449 | } |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | /* Must be called with vb_queue_lock hold */ | |
725b7f30 | 455 | static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev) |
77113892 | 456 | { |
e4e78693 | 457 | struct platform_device *pdev = dev->pdev; |
abfc8d66 | 458 | unsigned long flags; |
941a8204 | 459 | |
e4e78693 | 460 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 461 | |
725b7f30 AP |
462 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
463 | while (!list_empty(&dev->queued_bufs)) { | |
77113892 | 464 | struct rtl2832_sdr_frame_buf *buf; |
941a8204 | 465 | |
725b7f30 | 466 | buf = list_entry(dev->queued_bufs.next, |
77113892 AP |
467 | struct rtl2832_sdr_frame_buf, list); |
468 | list_del(&buf->list); | |
2d700715 | 469 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
77113892 | 470 | } |
725b7f30 | 471 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); |
77113892 AP |
472 | } |
473 | ||
77113892 AP |
474 | static int rtl2832_sdr_querycap(struct file *file, void *fh, |
475 | struct v4l2_capability *cap) | |
476 | { | |
725b7f30 | 477 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 478 | struct platform_device *pdev = dev->pdev; |
941a8204 | 479 | |
e4e78693 | 480 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
481 | |
482 | strlcpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver)); | |
725b7f30 AP |
483 | strlcpy(cap->card, dev->vdev.name, sizeof(cap->card)); |
484 | usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); | |
77113892 AP |
485 | cap->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_STREAMING | |
486 | V4L2_CAP_READWRITE | V4L2_CAP_TUNER; | |
487 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
488 | return 0; | |
489 | } | |
490 | ||
491 | /* Videobuf2 operations */ | |
492 | static int rtl2832_sdr_queue_setup(struct vb2_queue *vq, | |
493 | const struct v4l2_format *fmt, unsigned int *nbuffers, | |
494 | unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) | |
495 | { | |
725b7f30 | 496 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 497 | struct platform_device *pdev = dev->pdev; |
941a8204 | 498 | |
e4e78693 | 499 | dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers); |
77113892 | 500 | |
bc908754 HV |
501 | /* Need at least 8 buffers */ |
502 | if (vq->num_buffers + *nbuffers < 8) | |
503 | *nbuffers = 8 - vq->num_buffers; | |
77113892 | 504 | *nplanes = 1; |
725b7f30 | 505 | sizes[0] = PAGE_ALIGN(dev->buffersize); |
e4e78693 | 506 | dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]); |
77113892 AP |
507 | return 0; |
508 | } | |
509 | ||
510 | static int rtl2832_sdr_buf_prepare(struct vb2_buffer *vb) | |
511 | { | |
725b7f30 | 512 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
77113892 AP |
513 | |
514 | /* Don't allow queing new buffers after device disconnection */ | |
725b7f30 | 515 | if (!dev->udev) |
77113892 AP |
516 | return -ENODEV; |
517 | ||
518 | return 0; | |
519 | } | |
520 | ||
521 | static void rtl2832_sdr_buf_queue(struct vb2_buffer *vb) | |
522 | { | |
2d700715 | 523 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
725b7f30 | 524 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
77113892 | 525 | struct rtl2832_sdr_frame_buf *buf = |
2d700715 | 526 | container_of(vbuf, struct rtl2832_sdr_frame_buf, vb); |
abfc8d66 | 527 | unsigned long flags; |
77113892 AP |
528 | |
529 | /* Check the device has not disconnected between prep and queuing */ | |
725b7f30 | 530 | if (!dev->udev) { |
2d700715 | 531 | vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
77113892 AP |
532 | return; |
533 | } | |
534 | ||
725b7f30 AP |
535 | spin_lock_irqsave(&dev->queued_bufs_lock, flags); |
536 | list_add_tail(&buf->list, &dev->queued_bufs); | |
537 | spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); | |
77113892 AP |
538 | } |
539 | ||
725b7f30 | 540 | static int rtl2832_sdr_set_adc(struct rtl2832_sdr_dev *dev) |
77113892 | 541 | { |
63bdab5d AP |
542 | struct platform_device *pdev = dev->pdev; |
543 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; | |
3bda2bf1 | 544 | struct dvb_frontend *fe = pdata->dvb_frontend; |
77113892 AP |
545 | int ret; |
546 | unsigned int f_sr, f_if; | |
547 | u8 buf[4], u8tmp1, u8tmp2; | |
548 | u64 u64tmp; | |
549 | u32 u32tmp; | |
941a8204 | 550 | |
e4e78693 | 551 | dev_dbg(&pdev->dev, "f_adc=%u\n", dev->f_adc); |
77113892 | 552 | |
725b7f30 | 553 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
554 | return 0; |
555 | ||
725b7f30 | 556 | if (dev->f_adc == 0) |
77113892 AP |
557 | return 0; |
558 | ||
725b7f30 | 559 | f_sr = dev->f_adc; |
77113892 | 560 | |
725b7f30 | 561 | ret = rtl2832_sdr_wr_regs(dev, 0x13e, "\x00\x00", 2); |
77113892 AP |
562 | if (ret) |
563 | goto err; | |
564 | ||
725b7f30 | 565 | ret = rtl2832_sdr_wr_regs(dev, 0x115, "\x00\x00\x00\x00", 4); |
77113892 AP |
566 | if (ret) |
567 | goto err; | |
568 | ||
569 | /* get IF from tuner */ | |
570 | if (fe->ops.tuner_ops.get_if_frequency) | |
571 | ret = fe->ops.tuner_ops.get_if_frequency(fe, &f_if); | |
572 | else | |
573 | ret = -EINVAL; | |
574 | ||
575 | if (ret) | |
576 | goto err; | |
577 | ||
578 | /* program IF */ | |
63bdab5d | 579 | u64tmp = f_if % pdata->clk; |
77113892 | 580 | u64tmp *= 0x400000; |
63bdab5d | 581 | u64tmp = div_u64(u64tmp, pdata->clk); |
77113892 AP |
582 | u64tmp = -u64tmp; |
583 | u32tmp = u64tmp & 0x3fffff; | |
584 | ||
e4e78693 | 585 | dev_dbg(&pdev->dev, "f_if=%u if_ctl=%08x\n", f_if, u32tmp); |
77113892 AP |
586 | |
587 | buf[0] = (u32tmp >> 16) & 0xff; | |
588 | buf[1] = (u32tmp >> 8) & 0xff; | |
589 | buf[2] = (u32tmp >> 0) & 0xff; | |
590 | ||
725b7f30 | 591 | ret = rtl2832_sdr_wr_regs(dev, 0x119, buf, 3); |
77113892 AP |
592 | if (ret) |
593 | goto err; | |
594 | ||
595 | /* BB / IF mode */ | |
596 | /* POR: 0x1b1=0x1f, 0x008=0x0d, 0x006=0x80 */ | |
597 | if (f_if) { | |
598 | u8tmp1 = 0x1a; /* disable Zero-IF */ | |
599 | u8tmp2 = 0x8d; /* enable ADC I */ | |
600 | } else { | |
601 | u8tmp1 = 0x1b; /* enable Zero-IF, DC, IQ */ | |
602 | u8tmp2 = 0xcd; /* enable ADC I, ADC Q */ | |
603 | } | |
604 | ||
725b7f30 | 605 | ret = rtl2832_sdr_wr_reg(dev, 0x1b1, u8tmp1); |
77113892 AP |
606 | if (ret) |
607 | goto err; | |
608 | ||
725b7f30 | 609 | ret = rtl2832_sdr_wr_reg(dev, 0x008, u8tmp2); |
77113892 AP |
610 | if (ret) |
611 | goto err; | |
612 | ||
725b7f30 | 613 | ret = rtl2832_sdr_wr_reg(dev, 0x006, 0x80); |
77113892 AP |
614 | if (ret) |
615 | goto err; | |
616 | ||
617 | /* program sampling rate (resampling down) */ | |
63bdab5d | 618 | u32tmp = div_u64(pdata->clk * 0x400000ULL, f_sr * 4U); |
77113892 AP |
619 | u32tmp <<= 2; |
620 | buf[0] = (u32tmp >> 24) & 0xff; | |
621 | buf[1] = (u32tmp >> 16) & 0xff; | |
622 | buf[2] = (u32tmp >> 8) & 0xff; | |
623 | buf[3] = (u32tmp >> 0) & 0xff; | |
725b7f30 | 624 | ret = rtl2832_sdr_wr_regs(dev, 0x19f, buf, 4); |
77113892 AP |
625 | if (ret) |
626 | goto err; | |
627 | ||
628 | /* low-pass filter */ | |
725b7f30 | 629 | ret = rtl2832_sdr_wr_regs(dev, 0x11c, |
77113892 AP |
630 | "\xca\xdc\xd7\xd8\xe0\xf2\x0e\x35\x06\x50\x9c\x0d\x71\x11\x14\x71\x74\x19\x41\xa5", |
631 | 20); | |
632 | if (ret) | |
633 | goto err; | |
634 | ||
725b7f30 | 635 | ret = rtl2832_sdr_wr_regs(dev, 0x017, "\x11\x10", 2); |
77113892 AP |
636 | if (ret) |
637 | goto err; | |
638 | ||
639 | /* mode */ | |
725b7f30 | 640 | ret = rtl2832_sdr_wr_regs(dev, 0x019, "\x05", 1); |
77113892 AP |
641 | if (ret) |
642 | goto err; | |
643 | ||
725b7f30 | 644 | ret = rtl2832_sdr_wr_regs(dev, 0x01a, "\x1b\x16\x0d\x06\x01\xff", 6); |
77113892 AP |
645 | if (ret) |
646 | goto err; | |
647 | ||
648 | /* FSM */ | |
725b7f30 | 649 | ret = rtl2832_sdr_wr_regs(dev, 0x192, "\x00\xf0\x0f", 3); |
77113892 AP |
650 | if (ret) |
651 | goto err; | |
652 | ||
653 | /* PID filter */ | |
725b7f30 | 654 | ret = rtl2832_sdr_wr_regs(dev, 0x061, "\x60", 1); |
77113892 AP |
655 | if (ret) |
656 | goto err; | |
657 | ||
658 | /* used RF tuner based settings */ | |
63bdab5d AP |
659 | switch (pdata->tuner) { |
660 | case RTL2832_SDR_TUNER_E4000: | |
725b7f30 AP |
661 | ret = rtl2832_sdr_wr_regs(dev, 0x112, "\x5a", 1); |
662 | ret = rtl2832_sdr_wr_regs(dev, 0x102, "\x40", 1); | |
663 | ret = rtl2832_sdr_wr_regs(dev, 0x103, "\x5a", 1); | |
664 | ret = rtl2832_sdr_wr_regs(dev, 0x1c7, "\x30", 1); | |
665 | ret = rtl2832_sdr_wr_regs(dev, 0x104, "\xd0", 1); | |
666 | ret = rtl2832_sdr_wr_regs(dev, 0x105, "\xbe", 1); | |
667 | ret = rtl2832_sdr_wr_regs(dev, 0x1c8, "\x18", 1); | |
668 | ret = rtl2832_sdr_wr_regs(dev, 0x106, "\x35", 1); | |
669 | ret = rtl2832_sdr_wr_regs(dev, 0x1c9, "\x21", 1); | |
670 | ret = rtl2832_sdr_wr_regs(dev, 0x1ca, "\x21", 1); | |
671 | ret = rtl2832_sdr_wr_regs(dev, 0x1cb, "\x00", 1); | |
672 | ret = rtl2832_sdr_wr_regs(dev, 0x107, "\x40", 1); | |
673 | ret = rtl2832_sdr_wr_regs(dev, 0x1cd, "\x10", 1); | |
674 | ret = rtl2832_sdr_wr_regs(dev, 0x1ce, "\x10", 1); | |
675 | ret = rtl2832_sdr_wr_regs(dev, 0x108, "\x80", 1); | |
676 | ret = rtl2832_sdr_wr_regs(dev, 0x109, "\x7f", 1); | |
677 | ret = rtl2832_sdr_wr_regs(dev, 0x10a, "\x80", 1); | |
678 | ret = rtl2832_sdr_wr_regs(dev, 0x10b, "\x7f", 1); | |
679 | ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1); | |
680 | ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1); | |
681 | ret = rtl2832_sdr_wr_regs(dev, 0x011, "\xd4", 1); | |
682 | ret = rtl2832_sdr_wr_regs(dev, 0x1e5, "\xf0", 1); | |
683 | ret = rtl2832_sdr_wr_regs(dev, 0x1d9, "\x00", 1); | |
684 | ret = rtl2832_sdr_wr_regs(dev, 0x1db, "\x00", 1); | |
685 | ret = rtl2832_sdr_wr_regs(dev, 0x1dd, "\x14", 1); | |
686 | ret = rtl2832_sdr_wr_regs(dev, 0x1de, "\xec", 1); | |
687 | ret = rtl2832_sdr_wr_regs(dev, 0x1d8, "\x0c", 1); | |
688 | ret = rtl2832_sdr_wr_regs(dev, 0x1e6, "\x02", 1); | |
689 | ret = rtl2832_sdr_wr_regs(dev, 0x1d7, "\x09", 1); | |
690 | ret = rtl2832_sdr_wr_regs(dev, 0x00d, "\x83", 1); | |
691 | ret = rtl2832_sdr_wr_regs(dev, 0x010, "\x49", 1); | |
692 | ret = rtl2832_sdr_wr_regs(dev, 0x00d, "\x87", 1); | |
693 | ret = rtl2832_sdr_wr_regs(dev, 0x00d, "\x85", 1); | |
694 | ret = rtl2832_sdr_wr_regs(dev, 0x013, "\x02", 1); | |
77113892 | 695 | break; |
63bdab5d AP |
696 | case RTL2832_SDR_TUNER_FC0012: |
697 | case RTL2832_SDR_TUNER_FC0013: | |
725b7f30 AP |
698 | ret = rtl2832_sdr_wr_regs(dev, 0x112, "\x5a", 1); |
699 | ret = rtl2832_sdr_wr_regs(dev, 0x102, "\x40", 1); | |
700 | ret = rtl2832_sdr_wr_regs(dev, 0x103, "\x5a", 1); | |
701 | ret = rtl2832_sdr_wr_regs(dev, 0x1c7, "\x2c", 1); | |
702 | ret = rtl2832_sdr_wr_regs(dev, 0x104, "\xcc", 1); | |
703 | ret = rtl2832_sdr_wr_regs(dev, 0x105, "\xbe", 1); | |
704 | ret = rtl2832_sdr_wr_regs(dev, 0x1c8, "\x16", 1); | |
705 | ret = rtl2832_sdr_wr_regs(dev, 0x106, "\x35", 1); | |
706 | ret = rtl2832_sdr_wr_regs(dev, 0x1c9, "\x21", 1); | |
707 | ret = rtl2832_sdr_wr_regs(dev, 0x1ca, "\x21", 1); | |
708 | ret = rtl2832_sdr_wr_regs(dev, 0x1cb, "\x00", 1); | |
709 | ret = rtl2832_sdr_wr_regs(dev, 0x107, "\x40", 1); | |
710 | ret = rtl2832_sdr_wr_regs(dev, 0x1cd, "\x10", 1); | |
711 | ret = rtl2832_sdr_wr_regs(dev, 0x1ce, "\x10", 1); | |
712 | ret = rtl2832_sdr_wr_regs(dev, 0x108, "\x80", 1); | |
713 | ret = rtl2832_sdr_wr_regs(dev, 0x109, "\x7f", 1); | |
714 | ret = rtl2832_sdr_wr_regs(dev, 0x10a, "\x80", 1); | |
715 | ret = rtl2832_sdr_wr_regs(dev, 0x10b, "\x7f", 1); | |
716 | ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1); | |
717 | ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1); | |
718 | ret = rtl2832_sdr_wr_regs(dev, 0x011, "\xe9\xbf", 2); | |
719 | ret = rtl2832_sdr_wr_regs(dev, 0x1e5, "\xf0", 1); | |
720 | ret = rtl2832_sdr_wr_regs(dev, 0x1d9, "\x00", 1); | |
721 | ret = rtl2832_sdr_wr_regs(dev, 0x1db, "\x00", 1); | |
722 | ret = rtl2832_sdr_wr_regs(dev, 0x1dd, "\x11", 1); | |
723 | ret = rtl2832_sdr_wr_regs(dev, 0x1de, "\xef", 1); | |
724 | ret = rtl2832_sdr_wr_regs(dev, 0x1d8, "\x0c", 1); | |
725 | ret = rtl2832_sdr_wr_regs(dev, 0x1e6, "\x02", 1); | |
726 | ret = rtl2832_sdr_wr_regs(dev, 0x1d7, "\x09", 1); | |
77113892 | 727 | break; |
63bdab5d AP |
728 | case RTL2832_SDR_TUNER_R820T: |
729 | case RTL2832_SDR_TUNER_R828D: | |
725b7f30 AP |
730 | ret = rtl2832_sdr_wr_regs(dev, 0x112, "\x5a", 1); |
731 | ret = rtl2832_sdr_wr_regs(dev, 0x102, "\x40", 1); | |
732 | ret = rtl2832_sdr_wr_regs(dev, 0x115, "\x01", 1); | |
733 | ret = rtl2832_sdr_wr_regs(dev, 0x103, "\x80", 1); | |
734 | ret = rtl2832_sdr_wr_regs(dev, 0x1c7, "\x24", 1); | |
735 | ret = rtl2832_sdr_wr_regs(dev, 0x104, "\xcc", 1); | |
736 | ret = rtl2832_sdr_wr_regs(dev, 0x105, "\xbe", 1); | |
737 | ret = rtl2832_sdr_wr_regs(dev, 0x1c8, "\x14", 1); | |
738 | ret = rtl2832_sdr_wr_regs(dev, 0x106, "\x35", 1); | |
739 | ret = rtl2832_sdr_wr_regs(dev, 0x1c9, "\x21", 1); | |
740 | ret = rtl2832_sdr_wr_regs(dev, 0x1ca, "\x21", 1); | |
741 | ret = rtl2832_sdr_wr_regs(dev, 0x1cb, "\x00", 1); | |
742 | ret = rtl2832_sdr_wr_regs(dev, 0x107, "\x40", 1); | |
743 | ret = rtl2832_sdr_wr_regs(dev, 0x1cd, "\x10", 1); | |
744 | ret = rtl2832_sdr_wr_regs(dev, 0x1ce, "\x10", 1); | |
745 | ret = rtl2832_sdr_wr_regs(dev, 0x108, "\x80", 1); | |
746 | ret = rtl2832_sdr_wr_regs(dev, 0x109, "\x7f", 1); | |
747 | ret = rtl2832_sdr_wr_regs(dev, 0x10a, "\x80", 1); | |
748 | ret = rtl2832_sdr_wr_regs(dev, 0x10b, "\x7f", 1); | |
749 | ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1); | |
750 | ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1); | |
751 | ret = rtl2832_sdr_wr_regs(dev, 0x011, "\xf4", 1); | |
77113892 | 752 | break; |
fc3a0497 AP |
753 | case RTL2832_SDR_TUNER_FC2580: |
754 | ret = rtl2832_sdr_wr_regs(dev, 0x112, "\x39", 1); | |
755 | ret = rtl2832_sdr_wr_regs(dev, 0x102, "\x40", 1); | |
756 | ret = rtl2832_sdr_wr_regs(dev, 0x103, "\x5a", 1); | |
757 | ret = rtl2832_sdr_wr_regs(dev, 0x1c7, "\x2c", 1); | |
758 | ret = rtl2832_sdr_wr_regs(dev, 0x104, "\xcc", 1); | |
759 | ret = rtl2832_sdr_wr_regs(dev, 0x105, "\xbe", 1); | |
760 | ret = rtl2832_sdr_wr_regs(dev, 0x1c8, "\x16", 1); | |
761 | ret = rtl2832_sdr_wr_regs(dev, 0x106, "\x35", 1); | |
762 | ret = rtl2832_sdr_wr_regs(dev, 0x1c9, "\x21", 1); | |
763 | ret = rtl2832_sdr_wr_regs(dev, 0x1ca, "\x21", 1); | |
764 | ret = rtl2832_sdr_wr_regs(dev, 0x1cb, "\x00", 1); | |
765 | ret = rtl2832_sdr_wr_regs(dev, 0x107, "\x40", 1); | |
766 | ret = rtl2832_sdr_wr_regs(dev, 0x1cd, "\x10", 1); | |
767 | ret = rtl2832_sdr_wr_regs(dev, 0x1ce, "\x10", 1); | |
768 | ret = rtl2832_sdr_wr_regs(dev, 0x108, "\x80", 1); | |
769 | ret = rtl2832_sdr_wr_regs(dev, 0x109, "\x7f", 1); | |
770 | ret = rtl2832_sdr_wr_regs(dev, 0x10a, "\x9c", 1); | |
771 | ret = rtl2832_sdr_wr_regs(dev, 0x10b, "\x7f", 1); | |
772 | ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1); | |
773 | ret = rtl2832_sdr_wr_regs(dev, 0x00e, "\xfc", 1); | |
774 | ret = rtl2832_sdr_wr_regs(dev, 0x011, "\xe9\xf4", 2); | |
775 | break; | |
77113892 | 776 | default: |
e4e78693 | 777 | dev_notice(&pdev->dev, "Unsupported tuner\n"); |
77113892 AP |
778 | } |
779 | ||
780 | /* software reset */ | |
725b7f30 | 781 | ret = rtl2832_sdr_wr_reg_mask(dev, 0x101, 0x04, 0x04); |
77113892 AP |
782 | if (ret) |
783 | goto err; | |
784 | ||
725b7f30 | 785 | ret = rtl2832_sdr_wr_reg_mask(dev, 0x101, 0x00, 0x04); |
77113892 AP |
786 | if (ret) |
787 | goto err; | |
788 | err: | |
789 | return ret; | |
790 | }; | |
791 | ||
725b7f30 | 792 | static void rtl2832_sdr_unset_adc(struct rtl2832_sdr_dev *dev) |
77113892 | 793 | { |
e4e78693 | 794 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
795 | int ret; |
796 | ||
e4e78693 | 797 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
798 | |
799 | /* PID filter */ | |
725b7f30 | 800 | ret = rtl2832_sdr_wr_regs(dev, 0x061, "\xe0", 1); |
77113892 AP |
801 | if (ret) |
802 | goto err; | |
803 | ||
804 | /* mode */ | |
725b7f30 | 805 | ret = rtl2832_sdr_wr_regs(dev, 0x019, "\x20", 1); |
77113892 AP |
806 | if (ret) |
807 | goto err; | |
808 | ||
725b7f30 | 809 | ret = rtl2832_sdr_wr_regs(dev, 0x017, "\x11\x10", 2); |
77113892 AP |
810 | if (ret) |
811 | goto err; | |
812 | ||
813 | /* FSM */ | |
725b7f30 | 814 | ret = rtl2832_sdr_wr_regs(dev, 0x192, "\x00\x0f\xff", 3); |
77113892 AP |
815 | if (ret) |
816 | goto err; | |
817 | ||
725b7f30 | 818 | ret = rtl2832_sdr_wr_regs(dev, 0x13e, "\x40\x00", 2); |
77113892 AP |
819 | if (ret) |
820 | goto err; | |
821 | ||
725b7f30 | 822 | ret = rtl2832_sdr_wr_regs(dev, 0x115, "\x06\x3f\xce\xcc", 4); |
77113892 AP |
823 | if (ret) |
824 | goto err; | |
825 | err: | |
826 | return; | |
827 | }; | |
828 | ||
725b7f30 | 829 | static int rtl2832_sdr_set_tuner_freq(struct rtl2832_sdr_dev *dev) |
77113892 | 830 | { |
e4e78693 | 831 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
832 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
833 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 AP |
834 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
835 | struct v4l2_ctrl *bandwidth_auto; | |
836 | struct v4l2_ctrl *bandwidth; | |
837 | ||
838 | /* | |
839 | * tuner RF (Hz) | |
840 | */ | |
725b7f30 | 841 | if (dev->f_tuner == 0) |
77113892 AP |
842 | return 0; |
843 | ||
844 | /* | |
845 | * bandwidth (Hz) | |
846 | */ | |
725b7f30 | 847 | bandwidth_auto = v4l2_ctrl_find(&dev->hdl, |
85594960 | 848 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO); |
725b7f30 | 849 | bandwidth = v4l2_ctrl_find(&dev->hdl, V4L2_CID_RF_TUNER_BANDWIDTH); |
77113892 | 850 | if (v4l2_ctrl_g_ctrl(bandwidth_auto)) { |
725b7f30 AP |
851 | c->bandwidth_hz = dev->f_adc; |
852 | v4l2_ctrl_s_ctrl(bandwidth, dev->f_adc); | |
77113892 AP |
853 | } else { |
854 | c->bandwidth_hz = v4l2_ctrl_g_ctrl(bandwidth); | |
855 | } | |
856 | ||
725b7f30 | 857 | c->frequency = dev->f_tuner; |
77113892 AP |
858 | c->delivery_system = SYS_DVBT; |
859 | ||
e4e78693 AP |
860 | dev_dbg(&pdev->dev, "frequency=%u bandwidth=%d\n", |
861 | c->frequency, c->bandwidth_hz); | |
77113892 | 862 | |
725b7f30 | 863 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
864 | return 0; |
865 | ||
fc3a0497 AP |
866 | if (!V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) { |
867 | if (fe->ops.tuner_ops.set_params) | |
868 | fe->ops.tuner_ops.set_params(fe); | |
869 | } | |
77113892 AP |
870 | |
871 | return 0; | |
872 | }; | |
873 | ||
725b7f30 | 874 | static int rtl2832_sdr_set_tuner(struct rtl2832_sdr_dev *dev) |
77113892 | 875 | { |
e4e78693 | 876 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
877 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
878 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 | 879 | |
e4e78693 | 880 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
881 | |
882 | if (fe->ops.tuner_ops.init) | |
883 | fe->ops.tuner_ops.init(fe); | |
884 | ||
885 | return 0; | |
886 | }; | |
887 | ||
725b7f30 | 888 | static void rtl2832_sdr_unset_tuner(struct rtl2832_sdr_dev *dev) |
77113892 | 889 | { |
e4e78693 | 890 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
891 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
892 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 | 893 | |
e4e78693 | 894 | dev_dbg(&pdev->dev, "\n"); |
77113892 AP |
895 | |
896 | if (fe->ops.tuner_ops.sleep) | |
897 | fe->ops.tuner_ops.sleep(fe); | |
898 | ||
899 | return; | |
900 | }; | |
901 | ||
902 | static int rtl2832_sdr_start_streaming(struct vb2_queue *vq, unsigned int count) | |
903 | { | |
725b7f30 | 904 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 905 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
906 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
907 | struct dvb_usb_device *d = pdata->dvb_usb_device; | |
77113892 | 908 | int ret; |
941a8204 | 909 | |
e4e78693 | 910 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 911 | |
725b7f30 | 912 | if (!dev->udev) |
77113892 AP |
913 | return -ENODEV; |
914 | ||
725b7f30 | 915 | if (mutex_lock_interruptible(&dev->v4l2_lock)) |
77113892 AP |
916 | return -ERESTARTSYS; |
917 | ||
3bda2bf1 AP |
918 | if (d->props->power_ctrl) |
919 | d->props->power_ctrl(d, 1); | |
77113892 | 920 | |
2281c824 | 921 | /* enable ADC */ |
3bda2bf1 AP |
922 | if (d->props->frontend_ctrl) |
923 | d->props->frontend_ctrl(pdata->dvb_frontend, 1); | |
2281c824 | 924 | |
725b7f30 | 925 | set_bit(POWER_ON, &dev->flags); |
77113892 | 926 | |
fc3a0497 AP |
927 | /* wake-up tuner */ |
928 | if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power)) | |
929 | ret = v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 1); | |
930 | else | |
931 | ret = rtl2832_sdr_set_tuner(dev); | |
77113892 AP |
932 | if (ret) |
933 | goto err; | |
934 | ||
725b7f30 | 935 | ret = rtl2832_sdr_set_tuner_freq(dev); |
77113892 AP |
936 | if (ret) |
937 | goto err; | |
938 | ||
725b7f30 | 939 | ret = rtl2832_sdr_set_adc(dev); |
77113892 AP |
940 | if (ret) |
941 | goto err; | |
942 | ||
725b7f30 | 943 | ret = rtl2832_sdr_alloc_stream_bufs(dev); |
77113892 AP |
944 | if (ret) |
945 | goto err; | |
946 | ||
725b7f30 | 947 | ret = rtl2832_sdr_alloc_urbs(dev); |
77113892 AP |
948 | if (ret) |
949 | goto err; | |
950 | ||
725b7f30 | 951 | dev->sequence = 0; |
bc908754 | 952 | |
725b7f30 | 953 | ret = rtl2832_sdr_submit_urbs(dev); |
77113892 AP |
954 | if (ret) |
955 | goto err; | |
956 | ||
957 | err: | |
725b7f30 | 958 | mutex_unlock(&dev->v4l2_lock); |
77113892 AP |
959 | |
960 | return ret; | |
961 | } | |
962 | ||
e37559b2 | 963 | static void rtl2832_sdr_stop_streaming(struct vb2_queue *vq) |
77113892 | 964 | { |
725b7f30 | 965 | struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq); |
e4e78693 | 966 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
967 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
968 | struct dvb_usb_device *d = pdata->dvb_usb_device; | |
941a8204 | 969 | |
e4e78693 | 970 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 971 | |
725b7f30 | 972 | mutex_lock(&dev->v4l2_lock); |
77113892 | 973 | |
725b7f30 AP |
974 | rtl2832_sdr_kill_urbs(dev); |
975 | rtl2832_sdr_free_urbs(dev); | |
976 | rtl2832_sdr_free_stream_bufs(dev); | |
977 | rtl2832_sdr_cleanup_queued_bufs(dev); | |
978 | rtl2832_sdr_unset_adc(dev); | |
fc3a0497 AP |
979 | |
980 | /* sleep tuner */ | |
981 | if (V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, core, s_power)) | |
982 | v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 0); | |
983 | else | |
984 | rtl2832_sdr_unset_tuner(dev); | |
77113892 | 985 | |
725b7f30 | 986 | clear_bit(POWER_ON, &dev->flags); |
2281c824 AP |
987 | |
988 | /* disable ADC */ | |
3bda2bf1 AP |
989 | if (d->props->frontend_ctrl) |
990 | d->props->frontend_ctrl(pdata->dvb_frontend, 0); | |
77113892 | 991 | |
3bda2bf1 AP |
992 | if (d->props->power_ctrl) |
993 | d->props->power_ctrl(d, 0); | |
77113892 | 994 | |
725b7f30 | 995 | mutex_unlock(&dev->v4l2_lock); |
77113892 AP |
996 | } |
997 | ||
998 | static struct vb2_ops rtl2832_sdr_vb2_ops = { | |
999 | .queue_setup = rtl2832_sdr_queue_setup, | |
1000 | .buf_prepare = rtl2832_sdr_buf_prepare, | |
1001 | .buf_queue = rtl2832_sdr_buf_queue, | |
1002 | .start_streaming = rtl2832_sdr_start_streaming, | |
1003 | .stop_streaming = rtl2832_sdr_stop_streaming, | |
1004 | .wait_prepare = vb2_ops_wait_prepare, | |
1005 | .wait_finish = vb2_ops_wait_finish, | |
1006 | }; | |
1007 | ||
1008 | static int rtl2832_sdr_g_tuner(struct file *file, void *priv, | |
1009 | struct v4l2_tuner *v) | |
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 | 1015 | dev_dbg(&pdev->dev, "index=%d type=%d\n", v->index, v->type); |
77113892 AP |
1016 | |
1017 | if (v->index == 0) { | |
1018 | strlcpy(v->name, "ADC: Realtek RTL2832", sizeof(v->name)); | |
1019 | v->type = V4L2_TUNER_ADC; | |
1020 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
1021 | v->rangelow = 300000; | |
1022 | v->rangehigh = 3200000; | |
fc3a0497 AP |
1023 | ret = 0; |
1024 | } else if (v->index == 1 && | |
1025 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_tuner)) { | |
1026 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_tuner, v); | |
77113892 AP |
1027 | } else if (v->index == 1) { |
1028 | strlcpy(v->name, "RF: <unknown>", sizeof(v->name)); | |
1029 | v->type = V4L2_TUNER_RF; | |
1030 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; | |
1031 | v->rangelow = 50000000; | |
1032 | v->rangehigh = 2000000000; | |
fc3a0497 | 1033 | ret = 0; |
77113892 | 1034 | } else { |
fc3a0497 | 1035 | ret = -EINVAL; |
77113892 | 1036 | } |
fc3a0497 | 1037 | return ret; |
77113892 AP |
1038 | } |
1039 | ||
1040 | static int rtl2832_sdr_s_tuner(struct file *file, void *priv, | |
1041 | const struct v4l2_tuner *v) | |
1042 | { | |
725b7f30 | 1043 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1044 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 1045 | int ret; |
941a8204 | 1046 | |
e4e78693 | 1047 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 1048 | |
fc3a0497 AP |
1049 | if (v->index == 0) { |
1050 | ret = 0; | |
1051 | } else if (v->index == 1 && | |
1052 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_tuner)) { | |
1053 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_tuner, v); | |
1054 | } else if (v->index == 1) { | |
1055 | ret = 0; | |
1056 | } else { | |
1057 | ret = -EINVAL; | |
1058 | } | |
1059 | return ret; | |
77113892 AP |
1060 | } |
1061 | ||
1062 | static int rtl2832_sdr_enum_freq_bands(struct file *file, void *priv, | |
1063 | struct v4l2_frequency_band *band) | |
1064 | { | |
725b7f30 | 1065 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1066 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 1067 | int ret; |
941a8204 | 1068 | |
e4e78693 AP |
1069 | dev_dbg(&pdev->dev, "tuner=%d type=%d index=%d\n", |
1070 | band->tuner, band->type, band->index); | |
77113892 AP |
1071 | |
1072 | if (band->tuner == 0) { | |
1073 | if (band->index >= ARRAY_SIZE(bands_adc)) | |
1074 | return -EINVAL; | |
1075 | ||
1076 | *band = bands_adc[band->index]; | |
fc3a0497 AP |
1077 | ret = 0; |
1078 | } else if (band->tuner == 1 && | |
1079 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, enum_freq_bands)) { | |
1080 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, enum_freq_bands, band); | |
77113892 AP |
1081 | } else if (band->tuner == 1) { |
1082 | if (band->index >= ARRAY_SIZE(bands_fm)) | |
1083 | return -EINVAL; | |
1084 | ||
1085 | *band = bands_fm[band->index]; | |
fc3a0497 | 1086 | ret = 0; |
77113892 | 1087 | } else { |
fc3a0497 | 1088 | ret = -EINVAL; |
77113892 | 1089 | } |
fc3a0497 | 1090 | return ret; |
77113892 AP |
1091 | } |
1092 | ||
1093 | static int rtl2832_sdr_g_frequency(struct file *file, void *priv, | |
1094 | struct v4l2_frequency *f) | |
1095 | { | |
725b7f30 | 1096 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1097 | struct platform_device *pdev = dev->pdev; |
fc3a0497 | 1098 | int ret; |
941a8204 | 1099 | |
e4e78693 | 1100 | dev_dbg(&pdev->dev, "tuner=%d type=%d\n", f->tuner, f->type); |
77113892 | 1101 | |
bc908754 | 1102 | if (f->tuner == 0) { |
725b7f30 | 1103 | f->frequency = dev->f_adc; |
bc908754 | 1104 | f->type = V4L2_TUNER_ADC; |
fc3a0497 AP |
1105 | ret = 0; |
1106 | } else if (f->tuner == 1 && | |
1107 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, g_frequency)) { | |
1108 | f->type = V4L2_TUNER_RF; | |
1109 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, g_frequency, f); | |
bc908754 | 1110 | } else if (f->tuner == 1) { |
725b7f30 | 1111 | f->frequency = dev->f_tuner; |
bc908754 | 1112 | f->type = V4L2_TUNER_RF; |
fc3a0497 | 1113 | ret = 0; |
bc908754 | 1114 | } else { |
fc3a0497 | 1115 | ret = -EINVAL; |
bc908754 | 1116 | } |
77113892 AP |
1117 | return ret; |
1118 | } | |
1119 | ||
1120 | static int rtl2832_sdr_s_frequency(struct file *file, void *priv, | |
1121 | const struct v4l2_frequency *f) | |
1122 | { | |
725b7f30 | 1123 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1124 | struct platform_device *pdev = dev->pdev; |
77113892 AP |
1125 | int ret, band; |
1126 | ||
e4e78693 AP |
1127 | dev_dbg(&pdev->dev, "tuner=%d type=%d frequency=%u\n", |
1128 | f->tuner, f->type, f->frequency); | |
77113892 AP |
1129 | |
1130 | /* ADC band midpoints */ | |
1131 | #define BAND_ADC_0 ((bands_adc[0].rangehigh + bands_adc[1].rangelow) / 2) | |
1132 | #define BAND_ADC_1 ((bands_adc[1].rangehigh + bands_adc[2].rangelow) / 2) | |
1133 | ||
1134 | if (f->tuner == 0 && f->type == V4L2_TUNER_ADC) { | |
1135 | if (f->frequency < BAND_ADC_0) | |
1136 | band = 0; | |
1137 | else if (f->frequency < BAND_ADC_1) | |
1138 | band = 1; | |
1139 | else | |
1140 | band = 2; | |
1141 | ||
725b7f30 | 1142 | dev->f_adc = clamp_t(unsigned int, f->frequency, |
fc3a0497 AP |
1143 | bands_adc[band].rangelow, |
1144 | bands_adc[band].rangehigh); | |
77113892 | 1145 | |
e4e78693 | 1146 | dev_dbg(&pdev->dev, "ADC frequency=%u Hz\n", dev->f_adc); |
725b7f30 | 1147 | ret = rtl2832_sdr_set_adc(dev); |
fc3a0497 AP |
1148 | } else if (f->tuner == 1 && |
1149 | V4L2_SUBDEV_HAS_OP(dev->v4l2_subdev, tuner, s_frequency)) { | |
1150 | ret = v4l2_subdev_call(dev->v4l2_subdev, tuner, s_frequency, f); | |
77113892 | 1151 | } else if (f->tuner == 1) { |
725b7f30 | 1152 | dev->f_tuner = clamp_t(unsigned int, f->frequency, |
bc908754 HV |
1153 | bands_fm[0].rangelow, |
1154 | bands_fm[0].rangehigh); | |
e4e78693 | 1155 | dev_dbg(&pdev->dev, "RF frequency=%u Hz\n", f->frequency); |
77113892 | 1156 | |
725b7f30 | 1157 | ret = rtl2832_sdr_set_tuner_freq(dev); |
77113892 AP |
1158 | } else { |
1159 | ret = -EINVAL; | |
1160 | } | |
77113892 AP |
1161 | return ret; |
1162 | } | |
1163 | ||
1164 | static int rtl2832_sdr_enum_fmt_sdr_cap(struct file *file, void *priv, | |
1165 | struct v4l2_fmtdesc *f) | |
1166 | { | |
725b7f30 | 1167 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1168 | struct platform_device *pdev = dev->pdev; |
941a8204 | 1169 | |
e4e78693 | 1170 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 1171 | |
725b7f30 | 1172 | if (f->index >= dev->num_formats) |
77113892 AP |
1173 | return -EINVAL; |
1174 | ||
1175 | strlcpy(f->description, formats[f->index].name, sizeof(f->description)); | |
1176 | f->pixelformat = formats[f->index].pixelformat; | |
1177 | ||
1178 | return 0; | |
1179 | } | |
1180 | ||
1181 | static int rtl2832_sdr_g_fmt_sdr_cap(struct file *file, void *priv, | |
1182 | struct v4l2_format *f) | |
1183 | { | |
725b7f30 | 1184 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1185 | struct platform_device *pdev = dev->pdev; |
941a8204 | 1186 | |
e4e78693 | 1187 | dev_dbg(&pdev->dev, "\n"); |
77113892 | 1188 | |
725b7f30 AP |
1189 | f->fmt.sdr.pixelformat = dev->pixelformat; |
1190 | f->fmt.sdr.buffersize = dev->buffersize; | |
d57fe404 | 1191 | |
bc908754 | 1192 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
77113892 AP |
1193 | |
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | static int rtl2832_sdr_s_fmt_sdr_cap(struct file *file, void *priv, | |
1198 | struct v4l2_format *f) | |
1199 | { | |
725b7f30 | 1200 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1201 | struct platform_device *pdev = dev->pdev; |
725b7f30 | 1202 | struct vb2_queue *q = &dev->vb_queue; |
77113892 | 1203 | int i; |
941a8204 | 1204 | |
e4e78693 AP |
1205 | dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n", |
1206 | (char *)&f->fmt.sdr.pixelformat); | |
77113892 AP |
1207 | |
1208 | if (vb2_is_busy(q)) | |
1209 | return -EBUSY; | |
1210 | ||
bc908754 | 1211 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
725b7f30 | 1212 | for (i = 0; i < dev->num_formats; i++) { |
77113892 | 1213 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
725b7f30 AP |
1214 | dev->pixelformat = formats[i].pixelformat; |
1215 | dev->buffersize = formats[i].buffersize; | |
d57fe404 | 1216 | f->fmt.sdr.buffersize = formats[i].buffersize; |
77113892 AP |
1217 | return 0; |
1218 | } | |
1219 | } | |
1220 | ||
725b7f30 AP |
1221 | dev->pixelformat = formats[0].pixelformat; |
1222 | dev->buffersize = formats[0].buffersize; | |
d57fe404 AP |
1223 | f->fmt.sdr.pixelformat = formats[0].pixelformat; |
1224 | f->fmt.sdr.buffersize = formats[0].buffersize; | |
77113892 AP |
1225 | |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | static int rtl2832_sdr_try_fmt_sdr_cap(struct file *file, void *priv, | |
1230 | struct v4l2_format *f) | |
1231 | { | |
725b7f30 | 1232 | struct rtl2832_sdr_dev *dev = video_drvdata(file); |
e4e78693 | 1233 | struct platform_device *pdev = dev->pdev; |
77113892 | 1234 | int i; |
941a8204 | 1235 | |
e4e78693 AP |
1236 | dev_dbg(&pdev->dev, "pixelformat fourcc %4.4s\n", |
1237 | (char *)&f->fmt.sdr.pixelformat); | |
77113892 | 1238 | |
bc908754 | 1239 | memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); |
725b7f30 | 1240 | for (i = 0; i < dev->num_formats; i++) { |
d57fe404 AP |
1241 | if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { |
1242 | f->fmt.sdr.buffersize = formats[i].buffersize; | |
77113892 | 1243 | return 0; |
d57fe404 | 1244 | } |
77113892 AP |
1245 | } |
1246 | ||
1247 | f->fmt.sdr.pixelformat = formats[0].pixelformat; | |
d57fe404 | 1248 | f->fmt.sdr.buffersize = formats[0].buffersize; |
77113892 AP |
1249 | |
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | static const struct v4l2_ioctl_ops rtl2832_sdr_ioctl_ops = { | |
1254 | .vidioc_querycap = rtl2832_sdr_querycap, | |
1255 | ||
1256 | .vidioc_enum_fmt_sdr_cap = rtl2832_sdr_enum_fmt_sdr_cap, | |
1257 | .vidioc_g_fmt_sdr_cap = rtl2832_sdr_g_fmt_sdr_cap, | |
1258 | .vidioc_s_fmt_sdr_cap = rtl2832_sdr_s_fmt_sdr_cap, | |
1259 | .vidioc_try_fmt_sdr_cap = rtl2832_sdr_try_fmt_sdr_cap, | |
1260 | ||
1261 | .vidioc_reqbufs = vb2_ioctl_reqbufs, | |
1262 | .vidioc_create_bufs = vb2_ioctl_create_bufs, | |
1263 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
1264 | .vidioc_querybuf = vb2_ioctl_querybuf, | |
1265 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
1266 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
1267 | ||
1268 | .vidioc_streamon = vb2_ioctl_streamon, | |
1269 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
1270 | ||
1271 | .vidioc_g_tuner = rtl2832_sdr_g_tuner, | |
1272 | .vidioc_s_tuner = rtl2832_sdr_s_tuner, | |
1273 | ||
1274 | .vidioc_enum_freq_bands = rtl2832_sdr_enum_freq_bands, | |
1275 | .vidioc_g_frequency = rtl2832_sdr_g_frequency, | |
1276 | .vidioc_s_frequency = rtl2832_sdr_s_frequency, | |
1277 | ||
1278 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1279 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
1280 | .vidioc_log_status = v4l2_ctrl_log_status, | |
1281 | }; | |
1282 | ||
1283 | static const struct v4l2_file_operations rtl2832_sdr_fops = { | |
1284 | .owner = THIS_MODULE, | |
1285 | .open = v4l2_fh_open, | |
1286 | .release = vb2_fop_release, | |
1287 | .read = vb2_fop_read, | |
1288 | .poll = vb2_fop_poll, | |
1289 | .mmap = vb2_fop_mmap, | |
1290 | .unlocked_ioctl = video_ioctl2, | |
1291 | }; | |
1292 | ||
1293 | static struct video_device rtl2832_sdr_template = { | |
1294 | .name = "Realtek RTL2832 SDR", | |
1295 | .release = video_device_release_empty, | |
1296 | .fops = &rtl2832_sdr_fops, | |
1297 | .ioctl_ops = &rtl2832_sdr_ioctl_ops, | |
1298 | }; | |
1299 | ||
1300 | static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl) | |
1301 | { | |
725b7f30 AP |
1302 | struct rtl2832_sdr_dev *dev = |
1303 | container_of(ctrl->handler, struct rtl2832_sdr_dev, | |
77113892 | 1304 | hdl); |
e4e78693 | 1305 | struct platform_device *pdev = dev->pdev; |
3bda2bf1 AP |
1306 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
1307 | struct dvb_frontend *fe = pdata->dvb_frontend; | |
77113892 AP |
1308 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1309 | int ret; | |
941a8204 | 1310 | |
e4e78693 AP |
1311 | dev_dbg(&pdev->dev, "id=%d name=%s val=%d min=%lld max=%lld step=%lld\n", |
1312 | ctrl->id, ctrl->name, ctrl->val, ctrl->minimum, ctrl->maximum, | |
1313 | ctrl->step); | |
77113892 AP |
1314 | |
1315 | switch (ctrl->id) { | |
1316 | case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: | |
1317 | case V4L2_CID_RF_TUNER_BANDWIDTH: | |
ea4d04f9 | 1318 | /* TODO: these controls should be moved to tuner drivers */ |
725b7f30 | 1319 | if (dev->bandwidth_auto->val) { |
ea4d04f9 | 1320 | /* Round towards the closest legal value */ |
725b7f30 | 1321 | s32 val = dev->f_adc + div_u64(dev->bandwidth->step, 2); |
ea4d04f9 | 1322 | u32 offset; |
941a8204 | 1323 | |
725b7f30 AP |
1324 | val = clamp_t(s32, val, dev->bandwidth->minimum, |
1325 | dev->bandwidth->maximum); | |
1326 | offset = val - dev->bandwidth->minimum; | |
1327 | offset = dev->bandwidth->step * | |
1328 | div_u64(offset, dev->bandwidth->step); | |
1329 | dev->bandwidth->val = dev->bandwidth->minimum + offset; | |
ea4d04f9 | 1330 | } |
725b7f30 | 1331 | c->bandwidth_hz = dev->bandwidth->val; |
77113892 | 1332 | |
725b7f30 | 1333 | if (!test_bit(POWER_ON, &dev->flags)) |
77113892 AP |
1334 | return 0; |
1335 | ||
1336 | if (fe->ops.tuner_ops.set_params) | |
1337 | ret = fe->ops.tuner_ops.set_params(fe); | |
1338 | else | |
1339 | ret = 0; | |
1340 | break; | |
1341 | default: | |
1342 | ret = -EINVAL; | |
1343 | } | |
1344 | ||
1345 | return ret; | |
1346 | } | |
1347 | ||
1348 | static const struct v4l2_ctrl_ops rtl2832_sdr_ctrl_ops = { | |
1349 | .s_ctrl = rtl2832_sdr_s_ctrl, | |
1350 | }; | |
1351 | ||
1352 | static void rtl2832_sdr_video_release(struct v4l2_device *v) | |
1353 | { | |
725b7f30 AP |
1354 | struct rtl2832_sdr_dev *dev = |
1355 | container_of(v, struct rtl2832_sdr_dev, v4l2_dev); | |
63bdab5d AP |
1356 | struct platform_device *pdev = dev->pdev; |
1357 | ||
1358 | dev_dbg(&pdev->dev, "\n"); | |
77113892 | 1359 | |
725b7f30 AP |
1360 | v4l2_ctrl_handler_free(&dev->hdl); |
1361 | v4l2_device_unregister(&dev->v4l2_dev); | |
1362 | kfree(dev); | |
77113892 AP |
1363 | } |
1364 | ||
63bdab5d AP |
1365 | /* Platform driver interface */ |
1366 | static int rtl2832_sdr_probe(struct platform_device *pdev) | |
77113892 | 1367 | { |
725b7f30 | 1368 | struct rtl2832_sdr_dev *dev; |
63bdab5d | 1369 | struct rtl2832_sdr_platform_data *pdata = pdev->dev.platform_data; |
77113892 | 1370 | const struct v4l2_ctrl_ops *ops = &rtl2832_sdr_ctrl_ops; |
63bdab5d AP |
1371 | struct v4l2_subdev *subdev; |
1372 | int ret; | |
77113892 | 1373 | |
63bdab5d AP |
1374 | dev_dbg(&pdev->dev, "\n"); |
1375 | ||
1376 | if (!pdata) { | |
1377 | dev_err(&pdev->dev, "Cannot proceed without platform data\n"); | |
1378 | ret = -EINVAL; | |
1379 | goto err; | |
1380 | } | |
d5eec231 AP |
1381 | if (!pdev->dev.parent->driver) { |
1382 | dev_dbg(&pdev->dev, "No parent device\n"); | |
1383 | ret = -EINVAL; | |
1384 | goto err; | |
1385 | } | |
1386 | /* try to refcount host drv since we are the consumer */ | |
1387 | if (!try_module_get(pdev->dev.parent->driver->owner)) { | |
1388 | dev_err(&pdev->dev, "Refcount fail"); | |
1389 | ret = -EINVAL; | |
1390 | goto err; | |
1391 | } | |
63bdab5d | 1392 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
725b7f30 | 1393 | if (dev == NULL) { |
63bdab5d | 1394 | ret = -ENOMEM; |
d5eec231 | 1395 | goto err_module_put; |
77113892 AP |
1396 | } |
1397 | ||
1398 | /* setup the state */ | |
63bdab5d | 1399 | subdev = pdata->v4l2_subdev; |
fc3a0497 | 1400 | dev->v4l2_subdev = pdata->v4l2_subdev; |
63bdab5d | 1401 | dev->pdev = pdev; |
63bdab5d | 1402 | dev->udev = pdata->dvb_usb_device->udev; |
725b7f30 AP |
1403 | dev->f_adc = bands_adc[0].rangelow; |
1404 | dev->f_tuner = bands_fm[0].rangelow; | |
1405 | dev->pixelformat = formats[0].pixelformat; | |
1406 | dev->buffersize = formats[0].buffersize; | |
1407 | dev->num_formats = NUM_FORMATS; | |
2fe15e20 | 1408 | if (!rtl2832_sdr_emulated_fmt) |
725b7f30 | 1409 | dev->num_formats -= 1; |
77113892 | 1410 | |
725b7f30 AP |
1411 | mutex_init(&dev->v4l2_lock); |
1412 | mutex_init(&dev->vb_queue_lock); | |
1413 | spin_lock_init(&dev->queued_bufs_lock); | |
1414 | INIT_LIST_HEAD(&dev->queued_bufs); | |
77113892 AP |
1415 | |
1416 | /* Init videobuf2 queue structure */ | |
725b7f30 AP |
1417 | dev->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE; |
1418 | dev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; | |
1419 | dev->vb_queue.drv_priv = dev; | |
1420 | dev->vb_queue.buf_struct_size = sizeof(struct rtl2832_sdr_frame_buf); | |
1421 | dev->vb_queue.ops = &rtl2832_sdr_vb2_ops; | |
1422 | dev->vb_queue.mem_ops = &vb2_vmalloc_memops; | |
1423 | dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; | |
1424 | ret = vb2_queue_init(&dev->vb_queue); | |
77113892 | 1425 | if (ret) { |
63bdab5d AP |
1426 | dev_err(&pdev->dev, "Could not initialize vb2 queue\n"); |
1427 | goto err_kfree; | |
77113892 AP |
1428 | } |
1429 | ||
1430 | /* Register controls */ | |
63bdab5d AP |
1431 | switch (pdata->tuner) { |
1432 | case RTL2832_SDR_TUNER_E4000: | |
725b7f30 | 1433 | v4l2_ctrl_handler_init(&dev->hdl, 9); |
63bdab5d AP |
1434 | if (subdev) |
1435 | v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler, NULL); | |
77113892 | 1436 | break; |
63bdab5d AP |
1437 | case RTL2832_SDR_TUNER_R820T: |
1438 | case RTL2832_SDR_TUNER_R828D: | |
725b7f30 AP |
1439 | v4l2_ctrl_handler_init(&dev->hdl, 2); |
1440 | dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops, | |
63bdab5d AP |
1441 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
1442 | 0, 1, 1, 1); | |
725b7f30 | 1443 | dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops, |
63bdab5d AP |
1444 | V4L2_CID_RF_TUNER_BANDWIDTH, |
1445 | 0, 8000000, 100000, 0); | |
725b7f30 | 1446 | v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); |
77113892 | 1447 | break; |
63bdab5d AP |
1448 | case RTL2832_SDR_TUNER_FC0012: |
1449 | case RTL2832_SDR_TUNER_FC0013: | |
725b7f30 AP |
1450 | v4l2_ctrl_handler_init(&dev->hdl, 2); |
1451 | dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, ops, | |
63bdab5d AP |
1452 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
1453 | 0, 1, 1, 1); | |
725b7f30 | 1454 | dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, ops, |
63bdab5d AP |
1455 | V4L2_CID_RF_TUNER_BANDWIDTH, |
1456 | 6000000, 8000000, 1000000, | |
1457 | 6000000); | |
725b7f30 | 1458 | v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false); |
77113892 | 1459 | break; |
fc3a0497 AP |
1460 | case RTL2832_SDR_TUNER_FC2580: |
1461 | v4l2_ctrl_handler_init(&dev->hdl, 2); | |
1462 | if (subdev) | |
1463 | v4l2_ctrl_add_handler(&dev->hdl, subdev->ctrl_handler, | |
1464 | NULL); | |
1465 | break; | |
77113892 | 1466 | default: |
725b7f30 | 1467 | v4l2_ctrl_handler_init(&dev->hdl, 0); |
63bdab5d AP |
1468 | dev_err(&pdev->dev, "Unsupported tuner\n"); |
1469 | goto err_v4l2_ctrl_handler_free; | |
77113892 | 1470 | } |
725b7f30 AP |
1471 | if (dev->hdl.error) { |
1472 | ret = dev->hdl.error; | |
63bdab5d AP |
1473 | dev_err(&pdev->dev, "Could not initialize controls\n"); |
1474 | goto err_v4l2_ctrl_handler_free; | |
77113892 AP |
1475 | } |
1476 | ||
1477 | /* Init video_device structure */ | |
725b7f30 AP |
1478 | dev->vdev = rtl2832_sdr_template; |
1479 | dev->vdev.queue = &dev->vb_queue; | |
1480 | dev->vdev.queue->lock = &dev->vb_queue_lock; | |
1481 | video_set_drvdata(&dev->vdev, dev); | |
77113892 AP |
1482 | |
1483 | /* Register the v4l2_device structure */ | |
725b7f30 | 1484 | dev->v4l2_dev.release = rtl2832_sdr_video_release; |
e4e78693 | 1485 | ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); |
77113892 | 1486 | if (ret) { |
63bdab5d AP |
1487 | dev_err(&pdev->dev, "Failed to register v4l2-device %d\n", ret); |
1488 | goto err_v4l2_ctrl_handler_free; | |
77113892 AP |
1489 | } |
1490 | ||
725b7f30 AP |
1491 | dev->v4l2_dev.ctrl_handler = &dev->hdl; |
1492 | dev->vdev.v4l2_dev = &dev->v4l2_dev; | |
1493 | dev->vdev.lock = &dev->v4l2_lock; | |
1494 | dev->vdev.vfl_dir = VFL_DIR_RX; | |
77113892 | 1495 | |
725b7f30 | 1496 | ret = video_register_device(&dev->vdev, VFL_TYPE_SDR, -1); |
77113892 | 1497 | if (ret) { |
63bdab5d AP |
1498 | dev_err(&pdev->dev, "Failed to register as video device %d\n", |
1499 | ret); | |
1500 | goto err_v4l2_device_unregister; | |
77113892 | 1501 | } |
63bdab5d AP |
1502 | dev_info(&pdev->dev, "Registered as %s\n", |
1503 | video_device_node_name(&dev->vdev)); | |
1504 | dev_info(&pdev->dev, "Realtek RTL2832 SDR attached\n"); | |
1505 | dev_notice(&pdev->dev, | |
1506 | "SDR API is still slightly experimental and functionality changes may follow\n"); | |
1507 | platform_set_drvdata(pdev, dev); | |
1508 | return 0; | |
1509 | err_v4l2_device_unregister: | |
725b7f30 | 1510 | v4l2_device_unregister(&dev->v4l2_dev); |
63bdab5d | 1511 | err_v4l2_ctrl_handler_free: |
725b7f30 | 1512 | v4l2_ctrl_handler_free(&dev->hdl); |
63bdab5d | 1513 | err_kfree: |
725b7f30 | 1514 | kfree(dev); |
d5eec231 AP |
1515 | err_module_put: |
1516 | module_put(pdev->dev.parent->driver->owner); | |
63bdab5d AP |
1517 | err: |
1518 | return ret; | |
77113892 | 1519 | } |
63bdab5d AP |
1520 | |
1521 | static int rtl2832_sdr_remove(struct platform_device *pdev) | |
1522 | { | |
1523 | struct rtl2832_sdr_dev *dev = platform_get_drvdata(pdev); | |
1524 | ||
1525 | dev_dbg(&pdev->dev, "\n"); | |
1526 | ||
1527 | mutex_lock(&dev->vb_queue_lock); | |
1528 | mutex_lock(&dev->v4l2_lock); | |
1529 | /* No need to keep the urbs around after disconnection */ | |
1530 | dev->udev = NULL; | |
1531 | v4l2_device_disconnect(&dev->v4l2_dev); | |
1532 | video_unregister_device(&dev->vdev); | |
1533 | mutex_unlock(&dev->v4l2_lock); | |
1534 | mutex_unlock(&dev->vb_queue_lock); | |
63bdab5d | 1535 | v4l2_device_put(&dev->v4l2_dev); |
d5eec231 | 1536 | module_put(pdev->dev.parent->driver->owner); |
63bdab5d AP |
1537 | |
1538 | return 0; | |
1539 | } | |
1540 | ||
1541 | static struct platform_driver rtl2832_sdr_driver = { | |
1542 | .driver = { | |
1543 | .name = "rtl2832_sdr", | |
63bdab5d AP |
1544 | }, |
1545 | .probe = rtl2832_sdr_probe, | |
1546 | .remove = rtl2832_sdr_remove, | |
1547 | }; | |
1548 | module_platform_driver(rtl2832_sdr_driver); | |
77113892 AP |
1549 | |
1550 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | |
1551 | MODULE_DESCRIPTION("Realtek RTL2832 SDR driver"); | |
1552 | MODULE_LICENSE("GPL"); |