1 /*
2 ivtv driver internal defines and structures
3 Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
4 Copyright (C) 2004 Chris Kennedy <c@groovy.org>
5 Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 #ifndef IVTV_DRIVER_H
23 #define IVTV_DRIVER_H
24
25 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26
27 /* Internal header for ivtv project:
28 * Driver for the cx23415/6 chip.
29 * Author: Kevin Thayer (nufan_wfk at yahoo.com)
30 * License: GPL
31 *
32 * -----
33 * MPG600/MPG160 support by T.Adachi <tadachi@tadachi-net.com>
34 * and Takeru KOMORIYA<komoriya@paken.org>
35 *
36 * AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org>
37 * using information provided by Jiun-Kuei Jung @ AVerMedia.
38 */
39
40 #include <linux/module.h>
41 #include <linux/init.h>
42 #include <linux/delay.h>
43 #include <linux/sched/signal.h>
44 #include <linux/fs.h>
45 #include <linux/pci.h>
46 #include <linux/interrupt.h>
47 #include <linux/spinlock.h>
48 #include <linux/i2c.h>
49 #include <linux/i2c-algo-bit.h>
50 #include <linux/list.h>
51 #include <linux/unistd.h>
52 #include <linux/pagemap.h>
53 #include <linux/scatterlist.h>
54 #include <linux/kthread.h>
55 #include <linux/mutex.h>
56 #include <linux/slab.h>
57 #include <linux/uaccess.h>
58 #include <asm/byteorder.h>
59
60 #include <linux/dvb/video.h>
61 #include <linux/dvb/audio.h>
62 #include <media/v4l2-common.h>
63 #include <media/v4l2-ioctl.h>
64 #include <media/v4l2-ctrls.h>
65 #include <media/v4l2-device.h>
66 #include <media/v4l2-fh.h>
67 #include <media/tuner.h>
68 #include <media/drv-intf/cx2341x.h>
69 #include <media/i2c/ir-kbd-i2c.h>
70
71 #include <linux/ivtv.h>
72
73 /* Memory layout */
74 #define IVTV_ENCODER_OFFSET 0x00000000
75 #define IVTV_ENCODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */
76 #define IVTV_DECODER_OFFSET 0x01000000
77 #define IVTV_DECODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */
78 #define IVTV_REG_OFFSET 0x02000000
79 #define IVTV_REG_SIZE 0x00010000
80
81 /* Maximum ivtv driver instances. Some people have a huge number of
82 capture cards, so set this to a high value. */
83 #define IVTV_MAX_CARDS 32
84
85 #define IVTV_ENC_STREAM_TYPE_MPG 0
86 #define IVTV_ENC_STREAM_TYPE_YUV 1
87 #define IVTV_ENC_STREAM_TYPE_VBI 2
88 #define IVTV_ENC_STREAM_TYPE_PCM 3
89 #define IVTV_ENC_STREAM_TYPE_RAD 4
90 #define IVTV_DEC_STREAM_TYPE_MPG 5
91 #define IVTV_DEC_STREAM_TYPE_VBI 6
92 #define IVTV_DEC_STREAM_TYPE_VOUT 7
93 #define IVTV_DEC_STREAM_TYPE_YUV 8
94 #define IVTV_MAX_STREAMS 9
95
96 #define IVTV_DMA_SG_OSD_ENT (2883584/PAGE_SIZE) /* sg entities */
97
98 /* DMA Registers */
99 #define IVTV_REG_DMAXFER (0x0000)
100 #define IVTV_REG_DMASTATUS (0x0004)
101 #define IVTV_REG_DECDMAADDR (0x0008)
102 #define IVTV_REG_ENCDMAADDR (0x000c)
103 #define IVTV_REG_DMACONTROL (0x0010)
104 #define IVTV_REG_IRQSTATUS (0x0040)
105 #define IVTV_REG_IRQMASK (0x0048)
106
107 /* Setup Registers */
108 #define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8)
109 #define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC)
110 #define IVTV_REG_DEC_SDRAM_REFRESH (0x08F8)
111 #define IVTV_REG_DEC_SDRAM_PRECHARGE (0x08FC)
112 #define IVTV_REG_VDM (0x2800)
113 #define IVTV_REG_AO (0x2D00)
114 #define IVTV_REG_BYTEFLUSH (0x2D24)
115 #define IVTV_REG_SPU (0x9050)
116 #define IVTV_REG_HW_BLOCKS (0x9054)
117 #define IVTV_REG_VPU (0x9058)
118 #define IVTV_REG_APU (0xA064)
119
120 /* Other registers */
121 #define IVTV_REG_DEC_LINE_FIELD (0x28C0)
122
123 /* debugging */
124 extern int ivtv_debug;
125 #ifdef CONFIG_VIDEO_ADV_DEBUG
126 extern int ivtv_fw_debug;
127 #endif
128
129 #define IVTV_DBGFLG_WARN (1 << 0)
130 #define IVTV_DBGFLG_INFO (1 << 1)
131 #define IVTV_DBGFLG_MB (1 << 2)
132 #define IVTV_DBGFLG_IOCTL (1 << 3)
133 #define IVTV_DBGFLG_FILE (1 << 4)
134 #define IVTV_DBGFLG_DMA (1 << 5)
135 #define IVTV_DBGFLG_IRQ (1 << 6)
136 #define IVTV_DBGFLG_DEC (1 << 7)
137 #define IVTV_DBGFLG_YUV (1 << 8)
138 #define IVTV_DBGFLG_I2C (1 << 9)
139 /* Flag to turn on high volume debugging */
140 #define IVTV_DBGFLG_HIGHVOL (1 << 10)
141
142 #define IVTV_DEBUG(x, type, fmt, args...) \
143 do { \
144 if ((x) & ivtv_debug) \
145 v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \
146 } while (0)
147 #define IVTV_DEBUG_WARN(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_WARN, "warn", fmt , ## args)
148 #define IVTV_DEBUG_INFO(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_INFO, "info", fmt , ## args)
149 #define IVTV_DEBUG_MB(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_MB, "mb", fmt , ## args)
150 #define IVTV_DEBUG_DMA(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
151 #define IVTV_DEBUG_IOCTL(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
152 #define IVTV_DEBUG_FILE(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_FILE, "file", fmt , ## args)
153 #define IVTV_DEBUG_I2C(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
154 #define IVTV_DEBUG_IRQ(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
155 #define IVTV_DEBUG_DEC(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
156 #define IVTV_DEBUG_YUV(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
157
158 #define IVTV_DEBUG_HIGH_VOL(x, type, fmt, args...) \
159 do { \
160 if (((x) & ivtv_debug) && (ivtv_debug & IVTV_DBGFLG_HIGHVOL)) \
161 v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \
162 } while (0)
163 #define IVTV_DEBUG_HI_WARN(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_WARN, "warn", fmt , ## args)
164 #define IVTV_DEBUG_HI_INFO(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_INFO, "info", fmt , ## args)
165 #define IVTV_DEBUG_HI_MB(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_MB, "mb", fmt , ## args)
166 #define IVTV_DEBUG_HI_DMA(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
167 #define IVTV_DEBUG_HI_IOCTL(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
168 #define IVTV_DEBUG_HI_FILE(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_FILE, "file", fmt , ## args)
169 #define IVTV_DEBUG_HI_I2C(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
170 #define IVTV_DEBUG_HI_IRQ(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
171 #define IVTV_DEBUG_HI_DEC(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
172 #define IVTV_DEBUG_HI_YUV(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
173
174 /* Standard kernel messages */
175 #define IVTV_ERR(fmt, args...) v4l2_err(&itv->v4l2_dev, fmt , ## args)
176 #define IVTV_WARN(fmt, args...) v4l2_warn(&itv->v4l2_dev, fmt , ## args)
177 #define IVTV_INFO(fmt, args...) v4l2_info(&itv->v4l2_dev, fmt , ## args)
178
179 /* output modes (cx23415 only) */
180 #define OUT_NONE 0
181 #define OUT_MPG 1
182 #define OUT_YUV 2
183 #define OUT_UDMA_YUV 3
184 #define OUT_PASSTHROUGH 4
185
186 #define IVTV_MAX_PGM_INDEX (400)
187
188 /* Default I2C SCL period in microseconds */
189 #define IVTV_DEFAULT_I2C_CLOCK_PERIOD 20
190
191 struct ivtv_options {
192 int kilobytes[IVTV_MAX_STREAMS]; /* size in kilobytes of each stream */
193 int cardtype; /* force card type on load */
194 int tuner; /* set tuner on load */
195 int radio; /* enable/disable radio */
196 int newi2c; /* new I2C algorithm */
197 int i2c_clock_period; /* period of SCL for I2C bus */
198 };
199
200 /* ivtv-specific mailbox template */
201 struct ivtv_mailbox {
202 u32 flags;
203 u32 cmd;
204 u32 retval;
205 u32 timeout;
206 u32 data[CX2341X_MBOX_MAX_DATA];
207 };
208
209 struct ivtv_api_cache {
210 unsigned long last_jiffies; /* when last command was issued */
211 u32 data[CX2341X_MBOX_MAX_DATA]; /* last sent api data */
212 };
213
214 struct ivtv_mailbox_data {
215 volatile struct ivtv_mailbox __iomem *mbox;
216 /* Bits 0-2 are for the encoder mailboxes, 0-1 are for the decoder mailboxes.
217 If the bit is set, then the corresponding mailbox is in use by the driver. */
218 unsigned long busy;
219 u8 max_mbox;
220 };
221
222 /* per-buffer bit flags */
223 #define IVTV_F_B_NEED_BUF_SWAP (1 << 0) /* this buffer should be byte swapped */
224
225 /* per-stream, s_flags */
226 #define IVTV_F_S_DMA_PENDING 0 /* this stream has pending DMA */
227 #define IVTV_F_S_DMA_HAS_VBI 1 /* the current DMA request also requests VBI data */
228 #define IVTV_F_S_NEEDS_DATA 2 /* this decoding stream needs more data */
229
230 #define IVTV_F_S_CLAIMED 3 /* this stream is claimed */
231 #define IVTV_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */
232 #define IVTV_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */
233 #define IVTV_F_S_PASSTHROUGH 6 /* this stream is in passthrough mode */
234 #define IVTV_F_S_STREAMOFF 7 /* signal end of stream EOS */
235 #define IVTV_F_S_APPL_IO 8 /* this stream is used read/written by an application */
236
237 #define IVTV_F_S_PIO_PENDING 9 /* this stream has pending PIO */
238 #define IVTV_F_S_PIO_HAS_VBI 1 /* the current PIO request also requests VBI data */
239
240 /* per-ivtv, i_flags */
241 #define IVTV_F_I_DMA 0 /* DMA in progress */
242 #define IVTV_F_I_UDMA 1 /* UDMA in progress */
243 #define IVTV_F_I_UDMA_PENDING 2 /* UDMA pending */
244 #define IVTV_F_I_SPEED_CHANGE 3 /* a speed change is in progress */
245 #define IVTV_F_I_EOS 4 /* end of encoder stream reached */
246 #define IVTV_F_I_RADIO_USER 5 /* the radio tuner is selected */
247 #define IVTV_F_I_DIG_RST 6 /* reset digitizer */
248 #define IVTV_F_I_DEC_YUV 7 /* YUV instead of MPG is being decoded */
249 #define IVTV_F_I_UPDATE_CC 9 /* CC should be updated */
250 #define IVTV_F_I_UPDATE_WSS 10 /* WSS should be updated */
251 #define IVTV_F_I_UPDATE_VPS 11 /* VPS should be updated */
252 #define IVTV_F_I_DECODING_YUV 12 /* this stream is YUV frame decoding */
253 #define IVTV_F_I_ENC_PAUSED 13 /* the encoder is paused */
254 #define IVTV_F_I_VALID_DEC_TIMINGS 14 /* last_dec_timing is valid */
255 #define IVTV_F_I_HAVE_WORK 15 /* used in the interrupt handler: there is work to be done */
256 #define IVTV_F_I_WORK_HANDLER_VBI 16 /* there is work to be done for VBI */
257 #define IVTV_F_I_WORK_HANDLER_YUV 17 /* there is work to be done for YUV */
258 #define IVTV_F_I_WORK_HANDLER_PIO 18 /* there is work to be done for PIO */
259 #define IVTV_F_I_PIO 19 /* PIO in progress */
260 #define IVTV_F_I_DEC_PAUSED 20 /* the decoder is paused */
261 #define IVTV_F_I_INITED 21 /* set after first open */
262 #define IVTV_F_I_FAILED 22 /* set if first open failed */
263 #define IVTV_F_I_WORK_HANDLER_PCM 23 /* there is work to be done for PCM */
264
265 /* Event notifications */
266 #define IVTV_F_I_EV_DEC_STOPPED 28 /* decoder stopped event */
267 #define IVTV_F_I_EV_VSYNC 29 /* VSYNC event */
268 #define IVTV_F_I_EV_VSYNC_FIELD 30 /* VSYNC event field (0 = first, 1 = second field) */
269 #define IVTV_F_I_EV_VSYNC_ENABLED 31 /* VSYNC event enabled */
270
271 /* Scatter-Gather array element, used in DMA transfers */
272 struct ivtv_sg_element {
273 __le32 src;
274 __le32 dst;
275 __le32 size;
276 };
277
278 struct ivtv_sg_host_element {
279 u32 src;
280 u32 dst;
281 u32 size;
282 };
283
284 struct ivtv_user_dma {
285 struct mutex lock;
286 int page_count;
287 struct page *map[IVTV_DMA_SG_OSD_ENT];
288 /* Needed when dealing with highmem userspace buffers */
289 struct page *bouncemap[IVTV_DMA_SG_OSD_ENT];
290
291 /* Base Dev SG Array for cx23415/6 */
292 struct ivtv_sg_element SGarray[IVTV_DMA_SG_OSD_ENT];
293 dma_addr_t SG_handle;
294 int SG_length;
295
296 /* SG List of Buffers */
297 struct scatterlist SGlist[IVTV_DMA_SG_OSD_ENT];
298 };
299
300 struct ivtv_dma_page_info {
301 unsigned long uaddr;
302 unsigned long first;
303 unsigned long last;
304 unsigned int offset;
305 unsigned int tail;
306 int page_count;
307 };
308
309 struct ivtv_buffer {
310 struct list_head list;
311 dma_addr_t dma_handle;
312 unsigned short b_flags;
313 unsigned short dma_xfer_cnt;
314 char *buf;
315 u32 bytesused;
316 u32 readpos;
317 };
318
319 struct ivtv_queue {
320 struct list_head list; /* the list of buffers in this queue */
321 u32 buffers; /* number of buffers in this queue */
322 u32 length; /* total number of bytes of available buffer space */
323 u32 bytesused; /* total number of bytes used in this queue */
324 };
325
326 struct ivtv; /* forward reference */
327
328 struct ivtv_stream {
329 /* These first four fields are always set, even if the stream
330 is not actually created. */
331 struct video_device vdev; /* vdev.v4l2_dev is NULL if there is no device */
332 struct ivtv *itv; /* for ease of use */
333 const char *name; /* name of the stream */
334 int type; /* stream type */
335 u32 caps; /* V4L2 capabilities */
336
337 struct v4l2_fh *fh; /* pointer to the streaming filehandle */
338 spinlock_t qlock; /* locks access to the queues */
339 unsigned long s_flags; /* status flags, see above */
340 int dma; /* can be PCI_DMA_TODEVICE, PCI_DMA_FROMDEVICE or PCI_DMA_NONE */
341 u32 pending_offset;
342 u32 pending_backup;
343 u64 pending_pts;
344
345 u32 dma_offset;
346 u32 dma_backup;
347 u64 dma_pts;
348
349 int subtype;
350 wait_queue_head_t waitq;
351 u32 dma_last_offset;
352
353 /* Buffer Stats */
354 u32 buffers;
355 u32 buf_size;
356 u32 buffers_stolen;
357
358 /* Buffer Queues */
359 struct ivtv_queue q_free; /* free buffers */
360 struct ivtv_queue q_full; /* full buffers */
361 struct ivtv_queue q_io; /* waiting for I/O */
362 struct ivtv_queue q_dma; /* waiting for DMA */
363 struct ivtv_queue q_predma; /* waiting for DMA */
364
365 /* DMA xfer counter, buffers belonging to the same DMA
366 xfer will have the same dma_xfer_cnt. */
367 u16 dma_xfer_cnt;
368
369 /* Base Dev SG Array for cx23415/6 */
370 struct ivtv_sg_host_element *sg_pending;
371 struct ivtv_sg_host_element *sg_processing;
372 struct ivtv_sg_element *sg_dma;
373 dma_addr_t sg_handle;
374 int sg_pending_size;
375 int sg_processing_size;
376 int sg_processed;
377
378 /* SG List of Buffers */
379 struct scatterlist *SGlist;
380 };
381
382 struct ivtv_open_id {
383 struct v4l2_fh fh;
384 int type; /* stream type */
385 int yuv_frames; /* 1: started OUT_UDMA_YUV output mode */
386 struct ivtv *itv;
387 };
388
fh2id(struct v4l2_fh * fh)389 static inline struct ivtv_open_id *fh2id(struct v4l2_fh *fh)
390 {
391 return container_of(fh, struct ivtv_open_id, fh);
392 }
393
394 struct yuv_frame_info
395 {
396 u32 update;
397 s32 src_x;
398 s32 src_y;
399 u32 src_w;
400 u32 src_h;
401 s32 dst_x;
402 s32 dst_y;
403 u32 dst_w;
404 u32 dst_h;
405 s32 pan_x;
406 s32 pan_y;
407 u32 vis_w;
408 u32 vis_h;
409 u32 interlaced_y;
410 u32 interlaced_uv;
411 s32 tru_x;
412 u32 tru_w;
413 u32 tru_h;
414 u32 offset_y;
415 s32 lace_mode;
416 u32 sync_field;
417 u32 delay;
418 u32 interlaced;
419 };
420
421 #define IVTV_YUV_MODE_INTERLACED 0x00
422 #define IVTV_YUV_MODE_PROGRESSIVE 0x01
423 #define IVTV_YUV_MODE_AUTO 0x02
424 #define IVTV_YUV_MODE_MASK 0x03
425
426 #define IVTV_YUV_SYNC_EVEN 0x00
427 #define IVTV_YUV_SYNC_ODD 0x04
428 #define IVTV_YUV_SYNC_MASK 0x04
429
430 #define IVTV_YUV_BUFFERS 8
431
432 struct yuv_playback_info
433 {
434 u32 reg_2834;
435 u32 reg_2838;
436 u32 reg_283c;
437 u32 reg_2840;
438 u32 reg_2844;
439 u32 reg_2848;
440 u32 reg_2854;
441 u32 reg_285c;
442 u32 reg_2864;
443
444 u32 reg_2870;
445 u32 reg_2874;
446 u32 reg_2890;
447 u32 reg_2898;
448 u32 reg_289c;
449
450 u32 reg_2918;
451 u32 reg_291c;
452 u32 reg_2920;
453 u32 reg_2924;
454 u32 reg_2928;
455 u32 reg_292c;
456 u32 reg_2930;
457
458 u32 reg_2934;
459
460 u32 reg_2938;
461 u32 reg_293c;
462 u32 reg_2940;
463 u32 reg_2944;
464 u32 reg_2948;
465 u32 reg_294c;
466 u32 reg_2950;
467 u32 reg_2954;
468 u32 reg_2958;
469 u32 reg_295c;
470 u32 reg_2960;
471 u32 reg_2964;
472 u32 reg_2968;
473 u32 reg_296c;
474
475 u32 reg_2970;
476
477 int v_filter_1;
478 int v_filter_2;
479 int h_filter;
480
481 u8 track_osd; /* Should yuv output track the OSD size & position */
482
483 u32 osd_x_offset;
484 u32 osd_y_offset;
485
486 u32 osd_x_pan;
487 u32 osd_y_pan;
488
489 u32 osd_vis_w;
490 u32 osd_vis_h;
491
492 u32 osd_full_w;
493 u32 osd_full_h;
494
495 int decode_height;
496
497 int lace_mode;
498 int lace_threshold;
499 int lace_sync_field;
500
501 atomic_t next_dma_frame;
502 atomic_t next_fill_frame;
503
504 u32 yuv_forced_update;
505 int update_frame;
506
507 u8 fields_lapsed; /* Counter used when delaying a frame */
508
509 struct yuv_frame_info new_frame_info[IVTV_YUV_BUFFERS];
510 struct yuv_frame_info old_frame_info;
511 struct yuv_frame_info old_frame_info_args;
512
513 void *blanking_ptr;
514 dma_addr_t blanking_dmaptr;
515
516 int stream_size;
517
518 u8 draw_frame; /* PVR350 buffer to draw into */
519 u8 max_frames_buffered; /* Maximum number of frames to buffer */
520
521 struct v4l2_rect main_rect;
522 u32 v4l2_src_w;
523 u32 v4l2_src_h;
524
525 u8 running; /* Have any frames been displayed */
526 };
527
528 #define IVTV_VBI_FRAMES 32
529
530 /* VBI data */
531 struct vbi_cc {
532 u8 odd[2]; /* two-byte payload of odd field */
533 u8 even[2]; /* two-byte payload of even field */;
534 };
535
536 struct vbi_vps {
537 u8 data[5]; /* five-byte VPS payload */
538 };
539
540 struct vbi_info {
541 /* VBI general data, does not change during streaming */
542
543 u32 raw_decoder_line_size; /* raw VBI line size from digitizer */
544 u8 raw_decoder_sav_odd_field; /* raw VBI Start Active Video digitizer code of odd field */
545 u8 raw_decoder_sav_even_field; /* raw VBI Start Active Video digitizer code of even field */
546 u32 sliced_decoder_line_size; /* sliced VBI line size from digitizer */
547 u8 sliced_decoder_sav_odd_field; /* sliced VBI Start Active Video digitizer code of odd field */
548 u8 sliced_decoder_sav_even_field; /* sliced VBI Start Active Video digitizer code of even field */
549
550 u32 start[2]; /* start of first VBI line in the odd/even fields */
551 u32 count; /* number of VBI lines per field */
552 u32 raw_size; /* size of raw VBI line from the digitizer */
553 u32 sliced_size; /* size of sliced VBI line from the digitizer */
554
555 u32 dec_start; /* start in decoder memory of VBI re-insertion buffers */
556 u32 enc_start; /* start in encoder memory of VBI capture buffers */
557 u32 enc_size; /* size of VBI capture area */
558 int fpi; /* number of VBI frames per interrupt */
559
560 struct v4l2_format in; /* current VBI capture format */
561 struct v4l2_sliced_vbi_format *sliced_in; /* convenience pointer to sliced struct in vbi.in union */
562 int insert_mpeg; /* if non-zero, then embed VBI data in MPEG stream */
563
564 /* Raw VBI compatibility hack */
565
566 u32 frame; /* frame counter hack needed for backwards compatibility
567 of old VBI software */
568
569 /* Sliced VBI output data */
570
571 struct vbi_cc cc_payload[256]; /* sliced VBI CC payload array: it is an array to
572 prevent dropping CC data if they couldn't be
573 processed fast enough */
574 int cc_payload_idx; /* index in cc_payload */
575 u8 cc_missing_cnt; /* counts number of frames without CC for passthrough mode */
576 int wss_payload; /* sliced VBI WSS payload */
577 u8 wss_missing_cnt; /* counts number of frames without WSS for passthrough mode */
578 struct vbi_vps vps_payload; /* sliced VBI VPS payload */
579
580 /* Sliced VBI capture data */
581
582 struct v4l2_sliced_vbi_data sliced_data[36]; /* sliced VBI storage for VBI encoder stream */
583 struct v4l2_sliced_vbi_data sliced_dec_data[36];/* sliced VBI storage for VBI decoder stream */
584
585 /* VBI Embedding data */
586
587 /* Buffer for VBI data inserted into MPEG stream.
588 The first byte is a dummy byte that's never used.
589 The next 16 bytes contain the MPEG header for the VBI data,
590 the remainder is the actual VBI data.
591 The max size accepted by the MPEG VBI reinsertion turns out
592 to be 1552 bytes, which happens to be 4 + (1 + 42) * (2 * 18) bytes,
593 where 4 is a four byte header, 42 is the max sliced VBI payload, 1 is
594 a single line header byte and 2 * 18 is the number of VBI lines per frame.
595
596 However, it seems that the data must be 1K aligned, so we have to
597 pad the data until the 1 or 2 K boundary.
598
599 This pointer array will allocate 2049 bytes to store each VBI frame. */
600 u8 *sliced_mpeg_data[IVTV_VBI_FRAMES];
601 u32 sliced_mpeg_size[IVTV_VBI_FRAMES];
602 struct ivtv_buffer sliced_mpeg_buf; /* temporary buffer holding data from sliced_mpeg_data */
603 u32 inserted_frame; /* index in sliced_mpeg_size of next sliced data
604 to be inserted in the MPEG stream */
605 };
606
607 /* forward declaration of struct defined in ivtv-cards.h */
608 struct ivtv_card;
609
610 /* Struct to hold info about ivtv cards */
611 struct ivtv {
612 /* General fixed card data */
613 struct pci_dev *pdev; /* PCI device */
614 const struct ivtv_card *card; /* card information */
615 const char *card_name; /* full name of the card */
616 const struct ivtv_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */
617 u8 has_cx23415; /* 1 if it is a cx23415 based card, 0 for cx23416 */
618 u8 pvr150_workaround; /* 1 if the cx25840 needs to workaround a PVR150 bug */
619 u8 nof_inputs; /* number of video inputs */
620 u8 nof_audio_inputs; /* number of audio inputs */
621 u32 v4l2_cap; /* V4L2 capabilities of card */
622 u32 hw_flags; /* hardware description of the board */
623 v4l2_std_id tuner_std; /* the norm of the card's tuner (fixed) */
624 struct v4l2_subdev *sd_video; /* controlling video decoder subdev */
625 struct v4l2_subdev *sd_audio; /* controlling audio subdev */
626 struct v4l2_subdev *sd_muxer; /* controlling audio muxer subdev */
627 resource_size_t base_addr; /* PCI resource base address */
628 volatile void __iomem *enc_mem; /* pointer to mapped encoder memory */
629 volatile void __iomem *dec_mem; /* pointer to mapped decoder memory */
630 volatile void __iomem *reg_mem; /* pointer to mapped registers */
631 struct ivtv_options options; /* user options */
632
633 struct v4l2_device v4l2_dev;
634 struct cx2341x_handler cxhdl;
635 struct {
636 /* PTS/Frame count control cluster */
637 struct v4l2_ctrl *ctrl_pts;
638 struct v4l2_ctrl *ctrl_frame;
639 };
640 struct {
641 /* Audio Playback control cluster */
642 struct v4l2_ctrl *ctrl_audio_playback;
643 struct v4l2_ctrl *ctrl_audio_multilingual_playback;
644 };
645 struct v4l2_ctrl_handler hdl_gpio;
646 struct v4l2_subdev sd_gpio; /* GPIO sub-device */
647 u16 instance;
648
649 /* High-level state info */
650 unsigned long i_flags; /* global ivtv flags */
651 u8 is_50hz; /* 1 if the current capture standard is 50 Hz */
652 u8 is_60hz /* 1 if the current capture standard is 60 Hz */;
653 u8 is_out_50hz /* 1 if the current TV output standard is 50 Hz */;
654 u8 is_out_60hz /* 1 if the current TV output standard is 60 Hz */;
655 int output_mode; /* decoder output mode: NONE, MPG, YUV, UDMA YUV, passthrough */
656 u32 audio_input; /* current audio input */
657 u32 active_input; /* current video input */
658 u32 active_output; /* current video output */
659 v4l2_std_id std; /* current capture TV standard */
660 v4l2_std_id std_out; /* current TV output standard */
661 u8 audio_stereo_mode; /* decoder setting how to handle stereo MPEG audio */
662 u8 audio_bilingual_mode; /* decoder setting how to handle bilingual MPEG audio */
663
664 /* Locking */
665 spinlock_t lock; /* lock access to this struct */
666 struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */
667
668 /* Streams */
669 int stream_buf_size[IVTV_MAX_STREAMS]; /* stream buffer size */
670 struct ivtv_stream streams[IVTV_MAX_STREAMS]; /* stream data */
671 atomic_t capturing; /* count number of active capture streams */
672 atomic_t decoding; /* count number of active decoding streams */
673
674 /* ALSA interface for PCM capture stream */
675 struct snd_ivtv_card *alsa;
676 void (*pcm_announce_callback)(struct snd_ivtv_card *card, u8 *pcm_data,
677 size_t num_bytes);
678
679 /* Used for ivtv-alsa module loading */
680 struct work_struct request_module_wk;
681
682 /* Interrupts & DMA */
683 u32 irqmask; /* active interrupts */
684 u32 irq_rr_idx; /* round-robin stream index */
685 struct kthread_worker irq_worker; /* kthread worker for PIO/YUV/VBI actions */
686 struct task_struct *irq_worker_task; /* task for irq_worker */
687 struct kthread_work irq_work; /* kthread work entry */
688 spinlock_t dma_reg_lock; /* lock access to DMA engine registers */
689 int cur_dma_stream; /* index of current stream doing DMA (-1 if none) */
690 int cur_pio_stream; /* index of current stream doing PIO (-1 if none) */
691 u32 dma_data_req_offset; /* store offset in decoder memory of current DMA request */
692 u32 dma_data_req_size; /* store size of current DMA request */
693 int dma_retries; /* current DMA retry attempt */
694 struct ivtv_user_dma udma; /* user based DMA for OSD */
695 struct timer_list dma_timer; /* timer used to catch unfinished DMAs */
696 u32 last_vsync_field; /* last seen vsync field */
697 wait_queue_head_t dma_waitq; /* wake up when the current DMA is finished */
698 wait_queue_head_t eos_waitq; /* wake up when EOS arrives */
699 wait_queue_head_t event_waitq; /* wake up when the next decoder event arrives */
700 wait_queue_head_t vsync_waitq; /* wake up when the next decoder vsync arrives */
701
702
703 /* Mailbox */
704 struct ivtv_mailbox_data enc_mbox; /* encoder mailboxes */
705 struct ivtv_mailbox_data dec_mbox; /* decoder mailboxes */
706 struct ivtv_api_cache api_cache[256]; /* cached API commands */
707
708
709 /* I2C */
710 struct i2c_adapter i2c_adap;
711 struct i2c_algo_bit_data i2c_algo;
712 struct i2c_client i2c_client;
713 int i2c_state; /* i2c bit state */
714 struct mutex i2c_bus_lock; /* lock i2c bus */
715
716 struct IR_i2c_init_data ir_i2c_init_data;
717
718 /* Program Index information */
719 u32 pgm_info_offset; /* start of pgm info in encoder memory */
720 u32 pgm_info_num; /* number of elements in the pgm cyclic buffer in encoder memory */
721 u32 pgm_info_write_idx; /* last index written by the card that was transferred to pgm_info[] */
722 u32 pgm_info_read_idx; /* last index in pgm_info read by the application */
723 struct v4l2_enc_idx_entry pgm_info[IVTV_MAX_PGM_INDEX]; /* filled from the pgm cyclic buffer on the card */
724
725
726 /* Miscellaneous */
727 u32 open_id; /* incremented each time an open occurs, is >= 1 */
728 int search_pack_header; /* 1 if ivtv_copy_buf_to_user() is scanning for a pack header (0xba) */
729 int speed; /* current playback speed setting */
730 u8 speed_mute_audio; /* 1 if audio should be muted when fast forward */
731 u64 mpg_data_received; /* number of bytes received from the MPEG stream */
732 u64 vbi_data_inserted; /* number of VBI bytes inserted into the MPEG stream */
733 u32 last_dec_timing[3]; /* cache last retrieved pts/scr/frame values */
734 unsigned long dualwatch_jiffies;/* jiffies value of the previous dualwatch check */
735 u32 dualwatch_stereo_mode; /* current detected dualwatch stereo mode */
736
737
738 /* VBI state info */
739 struct vbi_info vbi; /* VBI-specific data */
740
741
742 /* YUV playback */
743 struct yuv_playback_info yuv_info; /* YUV playback data */
744
745
746 /* OSD support */
747 unsigned long osd_video_pbase;
748 int osd_global_alpha_state; /* 1 = global alpha is on */
749 int osd_local_alpha_state; /* 1 = local alpha is on */
750 int osd_chroma_key_state; /* 1 = chroma-keying is on */
751 u8 osd_global_alpha; /* current global alpha */
752 u32 osd_chroma_key; /* current chroma key */
753 struct v4l2_rect osd_rect; /* current OSD position and size */
754 struct v4l2_rect main_rect; /* current Main window position and size */
755 struct osd_info *osd_info; /* ivtvfb private OSD info */
756 void (*ivtvfb_restore)(struct ivtv *itv); /* Used for a warm start */
757 };
758
to_ivtv(struct v4l2_device * v4l2_dev)759 static inline struct ivtv *to_ivtv(struct v4l2_device *v4l2_dev)
760 {
761 return container_of(v4l2_dev, struct ivtv, v4l2_dev);
762 }
763
764 /* ivtv extensions to be loaded */
765 extern int (*ivtv_ext_init)(struct ivtv *);
766
767 /* Globals */
768 extern int ivtv_first_minor;
769
770 /*==============Prototypes==================*/
771
772 /* Hardware/IRQ */
773 void ivtv_set_irq_mask(struct ivtv *itv, u32 mask);
774 void ivtv_clear_irq_mask(struct ivtv *itv, u32 mask);
775
776 /* try to set output mode, return current mode. */
777 int ivtv_set_output_mode(struct ivtv *itv, int mode);
778
779 /* return current output stream based on current mode */
780 struct ivtv_stream *ivtv_get_output_stream(struct ivtv *itv);
781
782 /* Return non-zero if a signal is pending */
783 int ivtv_msleep_timeout(unsigned int msecs, int intr);
784
785 /* Wait on queue, returns -EINTR if interrupted */
786 int ivtv_waitq(wait_queue_head_t *waitq);
787
788 /* Read Hauppauge eeprom */
789 struct tveeprom; /* forward reference */
790 void ivtv_read_eeprom(struct ivtv *itv, struct tveeprom *tv);
791
792 /* First-open initialization: load firmware, init cx25840, etc. */
793 int ivtv_init_on_first_open(struct ivtv *itv);
794
795 /* Test if the current VBI mode is raw (1) or sliced (0) */
ivtv_raw_vbi(const struct ivtv * itv)796 static inline int ivtv_raw_vbi(const struct ivtv *itv)
797 {
798 return itv->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE;
799 }
800
801 /* This is a PCI post thing, where if the pci register is not read, then
802 the write doesn't always take effect right away. By reading back the
803 register any pending PCI writes will be performed (in order), and so
804 you can be sure that the writes are guaranteed to be done.
805
806 Rarely needed, only in some timing sensitive cases.
807 Apparently if this is not done some motherboards seem
808 to kill the firmware and get into the broken state until computer is
809 rebooted. */
810 #define write_sync(val, reg) \
811 do { writel(val, reg); readl(reg); } while (0)
812
813 #define read_reg(reg) readl(itv->reg_mem + (reg))
814 #define write_reg(val, reg) writel(val, itv->reg_mem + (reg))
815 #define write_reg_sync(val, reg) \
816 do { write_reg(val, reg); read_reg(reg); } while (0)
817
818 #define read_enc(addr) readl(itv->enc_mem + (u32)(addr))
819 #define write_enc(val, addr) writel(val, itv->enc_mem + (u32)(addr))
820 #define write_enc_sync(val, addr) \
821 do { write_enc(val, addr); read_enc(addr); } while (0)
822
823 #define read_dec(addr) readl(itv->dec_mem + (u32)(addr))
824 #define write_dec(val, addr) writel(val, itv->dec_mem + (u32)(addr))
825 #define write_dec_sync(val, addr) \
826 do { write_dec(val, addr); read_dec(addr); } while (0)
827
828 /* Call the specified callback for all subdevs matching hw (if 0, then
829 match them all). Ignore any errors. */
830 #define ivtv_call_hw(itv, hw, o, f, args...) \
831 v4l2_device_mask_call_all(&(itv)->v4l2_dev, hw, o, f, ##args)
832
833 #define ivtv_call_all(itv, o, f, args...) ivtv_call_hw(itv, 0, o, f , ##args)
834
835 /* Call the specified callback for all subdevs matching hw (if 0, then
836 match them all). If the callback returns an error other than 0 or
837 -ENOIOCTLCMD, then return with that error code. */
838 #define ivtv_call_hw_err(itv, hw, o, f, args...) \
839 v4l2_device_mask_call_until_err(&(itv)->v4l2_dev, hw, o, f, ##args)
840
841 #define ivtv_call_all_err(itv, o, f, args...) ivtv_call_hw_err(itv, 0, o, f , ##args)
842
843 #endif
844
