1 /*
2 * cx18 driver internal defines and structures
3 *
4 * Derived from ivtv-driver.h
5 *
6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
7 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 * 02111-1307 USA
23 */
24
25 #ifndef CX18_DRIVER_H
26 #define CX18_DRIVER_H
27
28 #include <linux/version.h>
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31 #include <linux/init.h>
32 #include <linux/delay.h>
33 #include <linux/sched.h>
34 #include <linux/fs.h>
35 #include <linux/pci.h>
36 #include <linux/interrupt.h>
37 #include <linux/spinlock.h>
38 #include <linux/i2c.h>
39 #include <linux/i2c-algo-bit.h>
40 #include <linux/list.h>
41 #include <linux/unistd.h>
42 #include <linux/pagemap.h>
43 #include <linux/workqueue.h>
44 #include <linux/mutex.h>
45 #include <linux/slab.h>
46 #include <asm/byteorder.h>
47
48 #include <linux/dvb/video.h>
49 #include <linux/dvb/audio.h>
50 #include <media/v4l2-common.h>
51 #include <media/v4l2-ioctl.h>
52 #include <media/v4l2-device.h>
53 #include <media/v4l2-fh.h>
54 #include <media/tuner.h>
55 #include <media/ir-kbd-i2c.h>
56 #include "cx18-mailbox.h"
57 #include "cx18-av-core.h"
58 #include "cx23418.h"
59
60 /* DVB */
61 #include "demux.h"
62 #include "dmxdev.h"
63 #include "dvb_demux.h"
64 #include "dvb_frontend.h"
65 #include "dvb_net.h"
66 #include "dvbdev.h"
67
68 #ifndef CONFIG_PCI
69 # error "This driver requires kernel PCI support."
70 #endif
71
72 #define CX18_MEM_OFFSET 0x00000000
73 #define CX18_MEM_SIZE 0x04000000
74 #define CX18_REG_OFFSET 0x02000000
75
76 /* Maximum cx18 driver instances. */
77 #define CX18_MAX_CARDS 32
78
79 /* Supported cards */
80 #define CX18_CARD_HVR_1600_ESMT 0 /* Hauppauge HVR 1600 (ESMT memory) */
81 #define CX18_CARD_HVR_1600_SAMSUNG 1 /* Hauppauge HVR 1600 (Samsung memory) */
82 #define CX18_CARD_COMPRO_H900 2 /* Compro VideoMate H900 */
83 #define CX18_CARD_YUAN_MPC718 3 /* Yuan MPC718 */
84 #define CX18_CARD_CNXT_RAPTOR_PAL 4 /* Conexant Raptor PAL */
85 #define CX18_CARD_TOSHIBA_QOSMIO_DVBT 5 /* Toshiba Qosmio Interal DVB-T/Analog*/
86 #define CX18_CARD_LEADTEK_PVR2100 6 /* Leadtek WinFast PVR2100 */
87 #define CX18_CARD_LEADTEK_DVR3100H 7 /* Leadtek WinFast DVR3100 H */
88 #define CX18_CARD_GOTVIEW_PCI_DVD3 8 /* GoTView PCI DVD3 Hybrid */
89 #define CX18_CARD_HVR_1600_S5H1411 9 /* Hauppauge HVR 1600 s5h1411/tda18271*/
90 #define CX18_CARD_LAST 9
91
92 #define CX18_ENC_STREAM_TYPE_MPG 0
93 #define CX18_ENC_STREAM_TYPE_TS 1
94 #define CX18_ENC_STREAM_TYPE_YUV 2
95 #define CX18_ENC_STREAM_TYPE_VBI 3
96 #define CX18_ENC_STREAM_TYPE_PCM 4
97 #define CX18_ENC_STREAM_TYPE_IDX 5
98 #define CX18_ENC_STREAM_TYPE_RAD 6
99 #define CX18_MAX_STREAMS 7
100
101 /* system vendor and device IDs */
102 #define PCI_VENDOR_ID_CX 0x14f1
103 #define PCI_DEVICE_ID_CX23418 0x5b7a
104
105 /* subsystem vendor ID */
106 #define CX18_PCI_ID_HAUPPAUGE 0x0070
107 #define CX18_PCI_ID_COMPRO 0x185b
108 #define CX18_PCI_ID_YUAN 0x12ab
109 #define CX18_PCI_ID_CONEXANT 0x14f1
110 #define CX18_PCI_ID_TOSHIBA 0x1179
111 #define CX18_PCI_ID_LEADTEK 0x107D
112 #define CX18_PCI_ID_GOTVIEW 0x5854
113
114 /* ======================================================================== */
115 /* ========================== START USER SETTABLE DMA VARIABLES =========== */
116 /* ======================================================================== */
117
118 /* DMA Buffers, Default size in MB allocated */
119 #define CX18_DEFAULT_ENC_TS_BUFFERS 1
120 #define CX18_DEFAULT_ENC_MPG_BUFFERS 2
121 #define CX18_DEFAULT_ENC_IDX_BUFFERS 1
122 #define CX18_DEFAULT_ENC_YUV_BUFFERS 2
123 #define CX18_DEFAULT_ENC_VBI_BUFFERS 1
124 #define CX18_DEFAULT_ENC_PCM_BUFFERS 1
125
126 /* Maximum firmware DMA buffers per stream */
127 #define CX18_MAX_FW_MDLS_PER_STREAM 63
128
129 /* YUV buffer sizes in bytes to ensure integer # of frames per buffer */
130 #define CX18_UNIT_ENC_YUV_BUFSIZE (720 * 32 * 3 / 2) /* bytes */
131 #define CX18_625_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32)
132 #define CX18_525_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32)
133
134 /* IDX buffer size should be a multiple of the index entry size from the chip */
135 struct cx18_enc_idx_entry {
136 __le32 length;
137 __le32 offset_low;
138 __le32 offset_high;
139 __le32 flags;
140 __le32 pts_low;
141 __le32 pts_high;
142 } __attribute__ ((packed));
143 #define CX18_UNIT_ENC_IDX_BUFSIZE \
144 (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES)
145
146 /* DMA buffer, default size in kB allocated */
147 #define CX18_DEFAULT_ENC_TS_BUFSIZE 32
148 #define CX18_DEFAULT_ENC_MPG_BUFSIZE 32
149 #define CX18_DEFAULT_ENC_IDX_BUFSIZE (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1)
150 #define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1)
151 #define CX18_DEFAULT_ENC_PCM_BUFSIZE 4
152
153 /* i2c stuff */
154 #define I2C_CLIENTS_MAX 16
155
156 /* debugging */
157
158 /* Flag to turn on high volume debugging */
159 #define CX18_DBGFLG_WARN (1 << 0)
160 #define CX18_DBGFLG_INFO (1 << 1)
161 #define CX18_DBGFLG_API (1 << 2)
162 #define CX18_DBGFLG_DMA (1 << 3)
163 #define CX18_DBGFLG_IOCTL (1 << 4)
164 #define CX18_DBGFLG_FILE (1 << 5)
165 #define CX18_DBGFLG_I2C (1 << 6)
166 #define CX18_DBGFLG_IRQ (1 << 7)
167 /* Flag to turn on high volume debugging */
168 #define CX18_DBGFLG_HIGHVOL (1 << 8)
169
170 /* NOTE: extra space before comma in 'fmt , ## args' is required for
171 gcc-2.95, otherwise it won't compile. */
172 #define CX18_DEBUG(x, type, fmt, args...) \
173 do { \
174 if ((x) & cx18_debug) \
175 v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \
176 } while (0)
177 #define CX18_DEBUG_WARN(fmt, args...) CX18_DEBUG(CX18_DBGFLG_WARN, "warning", fmt , ## args)
178 #define CX18_DEBUG_INFO(fmt, args...) CX18_DEBUG(CX18_DBGFLG_INFO, "info", fmt , ## args)
179 #define CX18_DEBUG_API(fmt, args...) CX18_DEBUG(CX18_DBGFLG_API, "api", fmt , ## args)
180 #define CX18_DEBUG_DMA(fmt, args...) CX18_DEBUG(CX18_DBGFLG_DMA, "dma", fmt , ## args)
181 #define CX18_DEBUG_IOCTL(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args)
182 #define CX18_DEBUG_FILE(fmt, args...) CX18_DEBUG(CX18_DBGFLG_FILE, "file", fmt , ## args)
183 #define CX18_DEBUG_I2C(fmt, args...) CX18_DEBUG(CX18_DBGFLG_I2C, "i2c", fmt , ## args)
184 #define CX18_DEBUG_IRQ(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IRQ, "irq", fmt , ## args)
185
186 #define CX18_DEBUG_HIGH_VOL(x, type, fmt, args...) \
187 do { \
188 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \
189 v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \
190 } while (0)
191 #define CX18_DEBUG_HI_WARN(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_WARN, "warning", fmt , ## args)
192 #define CX18_DEBUG_HI_INFO(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_INFO, "info", fmt , ## args)
193 #define CX18_DEBUG_HI_API(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_API, "api", fmt , ## args)
194 #define CX18_DEBUG_HI_DMA(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_DMA, "dma", fmt , ## args)
195 #define CX18_DEBUG_HI_IOCTL(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args)
196 #define CX18_DEBUG_HI_FILE(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_FILE, "file", fmt , ## args)
197 #define CX18_DEBUG_HI_I2C(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_I2C, "i2c", fmt , ## args)
198 #define CX18_DEBUG_HI_IRQ(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IRQ, "irq", fmt , ## args)
199
200 /* Standard kernel messages */
201 #define CX18_ERR(fmt, args...) v4l2_err(&cx->v4l2_dev, fmt , ## args)
202 #define CX18_WARN(fmt, args...) v4l2_warn(&cx->v4l2_dev, fmt , ## args)
203 #define CX18_INFO(fmt, args...) v4l2_info(&cx->v4l2_dev, fmt , ## args)
204
205 /* Messages for internal subdevs to use */
206 #define CX18_DEBUG_DEV(x, dev, type, fmt, args...) \
207 do { \
208 if ((x) & cx18_debug) \
209 v4l2_info(dev, " " type ": " fmt , ## args); \
210 } while (0)
211 #define CX18_DEBUG_WARN_DEV(dev, fmt, args...) \
212 CX18_DEBUG_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args)
213 #define CX18_DEBUG_INFO_DEV(dev, fmt, args...) \
214 CX18_DEBUG_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args)
215 #define CX18_DEBUG_API_DEV(dev, fmt, args...) \
216 CX18_DEBUG_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args)
217 #define CX18_DEBUG_DMA_DEV(dev, fmt, args...) \
218 CX18_DEBUG_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args)
219 #define CX18_DEBUG_IOCTL_DEV(dev, fmt, args...) \
220 CX18_DEBUG_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args)
221 #define CX18_DEBUG_FILE_DEV(dev, fmt, args...) \
222 CX18_DEBUG_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args)
223 #define CX18_DEBUG_I2C_DEV(dev, fmt, args...) \
224 CX18_DEBUG_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args)
225 #define CX18_DEBUG_IRQ_DEV(dev, fmt, args...) \
226 CX18_DEBUG_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args)
227
228 #define CX18_DEBUG_HIGH_VOL_DEV(x, dev, type, fmt, args...) \
229 do { \
230 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \
231 v4l2_info(dev, " " type ": " fmt , ## args); \
232 } while (0)
233 #define CX18_DEBUG_HI_WARN_DEV(dev, fmt, args...) \
234 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args)
235 #define CX18_DEBUG_HI_INFO_DEV(dev, fmt, args...) \
236 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args)
237 #define CX18_DEBUG_HI_API_DEV(dev, fmt, args...) \
238 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args)
239 #define CX18_DEBUG_HI_DMA_DEV(dev, fmt, args...) \
240 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args)
241 #define CX18_DEBUG_HI_IOCTL_DEV(dev, fmt, args...) \
242 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args)
243 #define CX18_DEBUG_HI_FILE_DEV(dev, fmt, args...) \
244 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args)
245 #define CX18_DEBUG_HI_I2C_DEV(dev, fmt, args...) \
246 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args)
247 #define CX18_DEBUG_HI_IRQ_DEV(dev, fmt, args...) \
248 CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args)
249
250 #define CX18_ERR_DEV(dev, fmt, args...) v4l2_err(dev, fmt , ## args)
251 #define CX18_WARN_DEV(dev, fmt, args...) v4l2_warn(dev, fmt , ## args)
252 #define CX18_INFO_DEV(dev, fmt, args...) v4l2_info(dev, fmt , ## args)
253
254 extern int cx18_debug;
255
256 struct cx18_options {
257 int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */
258 int cardtype; /* force card type on load */
259 int tuner; /* set tuner on load */
260 int radio; /* enable/disable radio */
261 };
262
263 /* per-mdl bit flags */
264 #define CX18_F_M_NEED_SWAP 0 /* mdl buffer data must be endianess swapped */
265
266 /* per-stream, s_flags */
267 #define CX18_F_S_CLAIMED 3 /* this stream is claimed */
268 #define CX18_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */
269 #define CX18_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */
270 #define CX18_F_S_STREAMOFF 7 /* signal end of stream EOS */
271 #define CX18_F_S_APPL_IO 8 /* this stream is used read/written by an application */
272 #define CX18_F_S_STOPPING 9 /* telling the fw to stop capturing */
273
274 /* per-cx18, i_flags */
275 #define CX18_F_I_LOADED_FW 0 /* Loaded firmware 1st time */
276 #define CX18_F_I_EOS 4 /* End of encoder stream */
277 #define CX18_F_I_RADIO_USER 5 /* radio tuner is selected */
278 #define CX18_F_I_ENC_PAUSED 13 /* the encoder is paused */
279 #define CX18_F_I_INITED 21 /* set after first open */
280 #define CX18_F_I_FAILED 22 /* set if first open failed */
281
282 /* These are the VBI types as they appear in the embedded VBI private packets. */
283 #define CX18_SLICED_TYPE_TELETEXT_B (1)
284 #define CX18_SLICED_TYPE_CAPTION_525 (4)
285 #define CX18_SLICED_TYPE_WSS_625 (5)
286 #define CX18_SLICED_TYPE_VPS (7)
287
288 /**
289 * list_entry_is_past_end - check if a previous loop cursor is off list end
290 * @pos: the type * previously used as a loop cursor.
291 * @head: the head for your list.
292 * @member: the name of the list_struct within the struct.
293 *
294 * Check if the entry's list_head is the head of the list, thus it's not a
295 * real entry but was the loop cursor that walked past the end
296 */
297 #define list_entry_is_past_end(pos, head, member) \
298 (&pos->member == (head))
299
300 struct cx18_buffer {
301 struct list_head list;
302 dma_addr_t dma_handle;
303 char *buf;
304
305 u32 bytesused;
306 u32 readpos;
307 };
308
309 struct cx18_mdl {
310 struct list_head list;
311 u32 id; /* index into cx->scb->cpu_mdl[] of 1st cx18_mdl_ent */
312
313 unsigned int skipped;
314 unsigned long m_flags;
315
316 struct list_head buf_list;
317 struct cx18_buffer *curr_buf; /* current buffer in list for reading */
318
319 u32 bytesused;
320 u32 readpos;
321 };
322
323 struct cx18_queue {
324 struct list_head list;
325 atomic_t depth;
326 u32 bytesused;
327 spinlock_t lock;
328 };
329
330 struct cx18_stream; /* forward reference */
331
332 struct cx18_dvb {
333 struct cx18_stream *stream;
334 struct dmx_frontend hw_frontend;
335 struct dmx_frontend mem_frontend;
336 struct dmxdev dmxdev;
337 struct dvb_adapter dvb_adapter;
338 struct dvb_demux demux;
339 struct dvb_frontend *fe;
340 struct dvb_net dvbnet;
341 int enabled;
342 int feeding;
343 struct mutex feedlock;
344 };
345
346 struct cx18; /* forward reference */
347 struct cx18_scb; /* forward reference */
348
349
350 #define CX18_MAX_MDL_ACKS 2
351 #define CX18_MAX_IN_WORK_ORDERS (CX18_MAX_FW_MDLS_PER_STREAM + 7)
352 /* CPU_DE_RELEASE_MDL can burst CX18_MAX_FW_MDLS_PER_STREAM orders in a group */
353
354 #define CX18_F_EWO_MB_STALE_UPON_RECEIPT 0x1
355 #define CX18_F_EWO_MB_STALE_WHILE_PROC 0x2
356 #define CX18_F_EWO_MB_STALE \
357 (CX18_F_EWO_MB_STALE_UPON_RECEIPT | CX18_F_EWO_MB_STALE_WHILE_PROC)
358
359 struct cx18_in_work_order {
360 struct work_struct work;
361 atomic_t pending;
362 struct cx18 *cx;
363 unsigned long flags;
364 int rpu;
365 struct cx18_mailbox mb;
366 struct cx18_mdl_ack mdl_ack[CX18_MAX_MDL_ACKS];
367 char *str;
368 };
369
370 #define CX18_INVALID_TASK_HANDLE 0xffffffff
371
372 struct cx18_stream {
373 /* These first five fields are always set, even if the stream
374 is not actually created. */
375 struct video_device *video_dev; /* NULL when stream not created */
376 struct cx18_dvb *dvb; /* DVB / Digital Transport */
377 struct cx18 *cx; /* for ease of use */
378 const char *name; /* name of the stream */
379 int type; /* stream type */
380 u32 handle; /* task handle */
381 unsigned int mdl_base_idx;
382
383 u32 id;
384 unsigned long s_flags; /* status flags, see above */
385 int dma; /* can be PCI_DMA_TODEVICE,
386 PCI_DMA_FROMDEVICE or
387 PCI_DMA_NONE */
388 wait_queue_head_t waitq;
389
390 /* Buffers */
391 struct list_head buf_pool; /* buffers not attached to an MDL */
392 u32 buffers; /* total buffers owned by this stream */
393 u32 buf_size; /* size in bytes of a single buffer */
394
395 /* MDL sizes - all stream MDLs are the same size */
396 u32 bufs_per_mdl;
397 u32 mdl_size; /* total bytes in all buffers in a mdl */
398
399 /* MDL Queues */
400 struct cx18_queue q_free; /* free - in rotation, not committed */
401 struct cx18_queue q_busy; /* busy - in use by firmware */
402 struct cx18_queue q_full; /* full - data for user apps */
403 struct cx18_queue q_idle; /* idle - not in rotation */
404
405 struct work_struct out_work_order;
406 };
407
408 struct cx18_open_id {
409 struct v4l2_fh fh;
410 u32 open_id;
411 int type;
412 struct cx18 *cx;
413 };
414
fh2id(struct v4l2_fh * fh)415 static inline struct cx18_open_id *fh2id(struct v4l2_fh *fh)
416 {
417 return container_of(fh, struct cx18_open_id, fh);
418 }
419
file2id(struct file * file)420 static inline struct cx18_open_id *file2id(struct file *file)
421 {
422 return fh2id(file->private_data);
423 }
424
425 /* forward declaration of struct defined in cx18-cards.h */
426 struct cx18_card;
427
428 /*
429 * A note about "sliced" VBI data as implemented in this driver:
430 *
431 * Currently we collect the sliced VBI in the form of Ancillary Data
432 * packets, inserted by the AV core decoder/digitizer/slicer in the
433 * horizontal blanking region of the VBI lines, in "raw" mode as far as
434 * the Encoder is concerned. We don't ever tell the Encoder itself
435 * to provide sliced VBI. (AV Core: sliced mode - Encoder: raw mode)
436 *
437 * We then process the ancillary data ourselves to send the sliced data
438 * to the user application directly or build up MPEG-2 private stream 1
439 * packets to splice into (only!) MPEG-2 PS streams for the user app.
440 *
441 * (That's how ivtv essentially does it.)
442 *
443 * The Encoder should be able to extract certain sliced VBI data for
444 * us and provide it in a separate stream or splice it into any type of
445 * MPEG PS or TS stream, but this isn't implemented yet.
446 */
447
448 /*
449 * Number of "raw" VBI samples per horizontal line we tell the Encoder to
450 * grab from the decoder/digitizer/slicer output for raw or sliced VBI.
451 * It depends on the pixel clock and the horiz rate:
452 *
453 * (1/Fh)*(2*Fp) = Samples/line
454 * = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples
455 *
456 * Sliced VBI data is sent as ancillary data during horizontal blanking
457 * Raw VBI is sent as active video samples during vertcal blanking
458 *
459 * We use a BT.656 pxiel clock of 13.5 MHz and a BT.656 active line
460 * length of 720 pixels @ 4:2:2 sampling. Thus...
461 *
462 * For systems that use a 15.734 kHz horizontal rate, such as
463 * NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have:
464 *
465 * (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line =
466 * 4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples
467 *
468 * For systems that use a 15.625 kHz horizontal rate, such as
469 * PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have:
470 *
471 * (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line =
472 * 4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples
473 */
474 static const u32 vbi_active_samples = 1444; /* 4 byte SAV + 720 Y + 720 U/V */
475 static const u32 vbi_hblank_samples_60Hz = 272; /* 4 byte EAV + 268 anc/fill */
476 static const u32 vbi_hblank_samples_50Hz = 284; /* 4 byte EAV + 280 anc/fill */
477
478 #define CX18_VBI_FRAMES 32
479
480 struct vbi_info {
481 /* Current state of v4l2 VBI settings for this device */
482 struct v4l2_format in;
483 struct v4l2_sliced_vbi_format *sliced_in; /* pointer to in.fmt.sliced */
484 u32 count; /* Count of VBI data lines: 60 Hz: 12 or 50 Hz: 18 */
485 u32 start[2]; /* First VBI data line per field: 10 & 273 or 6 & 318 */
486
487 u32 frame; /* Count of VBI buffers/frames received from Encoder */
488
489 /*
490 * Vars for creation and insertion of MPEG Private Stream 1 packets
491 * of sliced VBI data into an MPEG PS
492 */
493
494 /* Boolean: create and insert Private Stream 1 packets into the PS */
495 int insert_mpeg;
496
497 /*
498 * Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines.
499 * Used in cx18-vbi.c only for collecting sliced data, and as a source
500 * during conversion of sliced VBI data into MPEG Priv Stream 1 packets.
501 * We don't need to save state here, but the array may have been a bit
502 * too big (2304 bytes) to alloc from the stack.
503 */
504 struct v4l2_sliced_vbi_data sliced_data[36];
505
506 /*
507 * A ring buffer of driver-generated MPEG-2 PS
508 * Program Pack/Private Stream 1 packets for sliced VBI data insertion
509 * into the MPEG PS stream.
510 *
511 * In each sliced_mpeg_data[] buffer is:
512 * 16 byte MPEG-2 PS Program Pack Header
513 * 16 byte MPEG-2 Private Stream 1 PES Header
514 * 4 byte magic number: "itv0" or "ITV0"
515 * 4 byte first field line mask, if "itv0"
516 * 4 byte second field line mask, if "itv0"
517 * 36 lines, if "ITV0"; or <36 lines, if "itv0"; of sliced VBI data
518 *
519 * Each line in the payload is
520 * 1 byte line header derived from the SDID (WSS, CC, VPS, etc.)
521 * 42 bytes of line data
522 *
523 * That's a maximum 1552 bytes of payload in the Private Stream 1 packet
524 * which is the payload size a PVR-350 (CX23415) MPEG decoder will
525 * accept for VBI data. So, including the headers, it's a maximum 1584
526 * bytes total.
527 */
528 #define CX18_SLICED_MPEG_DATA_MAXSZ 1584
529 /* copy_vbi_buf() needs 8 temp bytes on the end for the worst case */
530 #define CX18_SLICED_MPEG_DATA_BUFSZ (CX18_SLICED_MPEG_DATA_MAXSZ+8)
531 u8 *sliced_mpeg_data[CX18_VBI_FRAMES];
532 u32 sliced_mpeg_size[CX18_VBI_FRAMES];
533
534 /* Count of Program Pack/Program Stream 1 packets inserted into PS */
535 u32 inserted_frame;
536
537 /*
538 * A dummy driver stream transfer mdl & buffer with a copy of the next
539 * sliced_mpeg_data[] buffer for output to userland apps.
540 * Only used in cx18-fileops.c, but its state needs to persist at times.
541 */
542 struct cx18_mdl sliced_mpeg_mdl;
543 struct cx18_buffer sliced_mpeg_buf;
544 };
545
546 /* Per cx23418, per I2C bus private algo callback data */
547 struct cx18_i2c_algo_callback_data {
548 struct cx18 *cx;
549 int bus_index; /* 0 or 1 for the cx23418's 1st or 2nd I2C bus */
550 };
551
552 #define CX18_MAX_MMIO_WR_RETRIES 10
553
554 /* Struct to hold info about cx18 cards */
555 struct cx18 {
556 int instance;
557 struct pci_dev *pci_dev;
558 struct v4l2_device v4l2_dev;
559 struct v4l2_subdev *sd_av; /* A/V decoder/digitizer sub-device */
560 struct v4l2_subdev *sd_extmux; /* External multiplexer sub-dev */
561
562 const struct cx18_card *card; /* card information */
563 const char *card_name; /* full name of the card */
564 const struct cx18_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */
565 u8 is_50hz;
566 u8 is_60hz;
567 u8 nof_inputs; /* number of video inputs */
568 u8 nof_audio_inputs; /* number of audio inputs */
569 u32 v4l2_cap; /* V4L2 capabilities of card */
570 u32 hw_flags; /* Hardware description of the board */
571 unsigned int free_mdl_idx;
572 struct cx18_scb __iomem *scb; /* pointer to SCB */
573 struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/
574 struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/
575
576 struct cx18_av_state av_state;
577
578 /* codec settings */
579 struct cx2341x_handler cxhdl;
580 u32 filter_mode;
581 u32 temporal_strength;
582 u32 spatial_strength;
583
584 /* dualwatch */
585 unsigned long dualwatch_jiffies;
586 u32 dualwatch_stereo_mode;
587
588 struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */
589 struct cx18_options options; /* User options */
590 int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */
591 int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */
592 struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */
593 struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */
594 void (*pcm_announce_callback)(struct snd_cx18_card *card, u8 *pcm_data,
595 size_t num_bytes);
596
597 unsigned long i_flags; /* global cx18 flags */
598 atomic_t ana_capturing; /* count number of active analog capture streams */
599 atomic_t tot_capturing; /* total count number of active capture streams */
600 int search_pack_header;
601
602 int open_id; /* incremented each time an open occurs, used as
603 unique ID. Starts at 1, so 0 can be used as
604 uninitialized value in the stream->id. */
605
606 u32 base_addr;
607
608 u8 card_rev;
609 void __iomem *enc_mem, *reg_mem;
610
611 struct vbi_info vbi;
612
613 u64 mpg_data_received;
614 u64 vbi_data_inserted;
615
616 wait_queue_head_t mb_apu_waitq;
617 wait_queue_head_t mb_cpu_waitq;
618 wait_queue_head_t cap_w;
619 /* when the current DMA is finished this queue is woken up */
620 wait_queue_head_t dma_waitq;
621
622 u32 sw1_irq_mask;
623 u32 sw2_irq_mask;
624 u32 hw2_irq_mask;
625
626 struct workqueue_struct *in_work_queue;
627 char in_workq_name[11]; /* "cx18-NN-in" */
628 struct cx18_in_work_order in_work_order[CX18_MAX_IN_WORK_ORDERS];
629 char epu_debug_str[256]; /* CX18_EPU_DEBUG is rare: use shared space */
630
631 /* i2c */
632 struct i2c_adapter i2c_adap[2];
633 struct i2c_algo_bit_data i2c_algo[2];
634 struct cx18_i2c_algo_callback_data i2c_algo_cb_data[2];
635
636 struct IR_i2c_init_data ir_i2c_init_data;
637
638 /* gpio */
639 u32 gpio_dir;
640 u32 gpio_val;
641 struct mutex gpio_lock;
642 struct v4l2_subdev sd_gpiomux;
643 struct v4l2_subdev sd_resetctrl;
644
645 /* v4l2 and User settings */
646
647 /* codec settings */
648 u32 audio_input;
649 u32 active_input;
650 v4l2_std_id std;
651 v4l2_std_id tuner_std; /* The norm of the tuner (fixed) */
652
653 /* Used for cx18-alsa module loading */
654 struct work_struct request_module_wk;
655 };
656
to_cx18(struct v4l2_device * v4l2_dev)657 static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev)
658 {
659 return container_of(v4l2_dev, struct cx18, v4l2_dev);
660 }
661
662 /* cx18 extensions to be loaded */
663 extern int (*cx18_ext_init)(struct cx18 *);
664
665 /* Globals */
666 extern int cx18_first_minor;
667
668 /*==============Prototypes==================*/
669
670 /* Return non-zero if a signal is pending */
671 int cx18_msleep_timeout(unsigned int msecs, int intr);
672
673 /* Read Hauppauge eeprom */
674 struct tveeprom; /* forward reference */
675 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv);
676
677 /* First-open initialization: load firmware, etc. */
678 int cx18_init_on_first_open(struct cx18 *cx);
679
680 /* Test if the current VBI mode is raw (1) or sliced (0) */
cx18_raw_vbi(const struct cx18 * cx)681 static inline int cx18_raw_vbi(const struct cx18 *cx)
682 {
683 return cx->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE;
684 }
685
686 /* Call the specified callback for all subdevs with a grp_id bit matching the
687 * mask in hw (if 0, then match them all). Ignore any errors. */
688 #define cx18_call_hw(cx, hw, o, f, args...) \
689 do { \
690 struct v4l2_subdev *__sd; \
691 __v4l2_device_call_subdevs_p(&(cx)->v4l2_dev, __sd, \
692 !(hw) || (__sd->grp_id & (hw)), o, f , ##args); \
693 } while (0)
694
695 #define cx18_call_all(cx, o, f, args...) cx18_call_hw(cx, 0, o, f , ##args)
696
697 /* Call the specified callback for all subdevs with a grp_id bit matching the
698 * mask in hw (if 0, then match them all). If the callback returns an error
699 * other than 0 or -ENOIOCTLCMD, then return with that error code. */
700 #define cx18_call_hw_err(cx, hw, o, f, args...) \
701 ({ \
702 struct v4l2_subdev *__sd; \
703 __v4l2_device_call_subdevs_until_err_p(&(cx)->v4l2_dev, \
704 __sd, !(hw) || (__sd->grp_id & (hw)), o, f, \
705 ##args); \
706 })
707
708 #define cx18_call_all_err(cx, o, f, args...) \
709 cx18_call_hw_err(cx, 0, o, f , ##args)
710
711 #endif /* CX18_DRIVER_H */
712