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CommitLineData
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1/*
2 * Driver for the NXP SAA7164 PCIe bridge
3 *
9b8b0199 4 * Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
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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 *
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., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22/*
23 Driver architecture
24 *******************
25
26 saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c
27 | : Standard Linux driver framework for creating
28 | : exposing and managing interfaces to the rest
29 | : of the kernel or userland. Also uses _fw.c to load
30 | : firmware direct into the PCIe bus, bypassing layers.
31 V
32 saa7164_api..() : Translate kernel specific functions/features
33 | : into command buffers.
34 V
35 saa7164_cmd..() : Manages the flow of command packets on/off,
36 | : the bus. Deal with bus errors, timeouts etc.
37 V
38 saa7164_bus..() : Manage a read/write memory ring buffer in the
39 | : PCIe Address space.
40 |
41 | saa7164_fw...() : Load any frimware
42 | | : direct into the device
43 V V
44 <- ----------------- PCIe address space -------------------- ->
45*/
46
47#include <linux/pci.h>
48#include <linux/i2c.h>
443c1228 49#include <linux/kdev_t.h>
7615e434 50#include <linux/mutex.h>
12d3203e 51#include <linux/crc32.h>
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52#include <linux/kthread.h>
53#include <linux/freezer.h>
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54
55#include <media/tuner.h>
56#include <media/tveeprom.h>
57#include <media/videobuf-dma-sg.h>
58#include <media/videobuf-dvb.h>
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59#include <dvb_demux.h>
60#include <dvb_frontend.h>
61#include <dvb_net.h>
62#include <dvbdev.h>
63#include <dmxdev.h>
64#include <media/v4l2-common.h>
65#include <media/v4l2-ioctl.h>
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66
67#include "saa7164-reg.h"
68#include "saa7164-types.h"
69
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70#define SAA7164_MAXBOARDS 8
71
72#define UNSET (-1U)
73#define SAA7164_BOARD_NOAUTO UNSET
74#define SAA7164_BOARD_UNKNOWN 0
75#define SAA7164_BOARD_UNKNOWN_REV2 1
76#define SAA7164_BOARD_UNKNOWN_REV3 2
77#define SAA7164_BOARD_HAUPPAUGE_HVR2250 3
78#define SAA7164_BOARD_HAUPPAUGE_HVR2200 4
79#define SAA7164_BOARD_HAUPPAUGE_HVR2200_2 5
80#define SAA7164_BOARD_HAUPPAUGE_HVR2200_3 6
81#define SAA7164_BOARD_HAUPPAUGE_HVR2250_2 7
e3335222 82#define SAA7164_BOARD_HAUPPAUGE_HVR2250_3 8
62dd28d0 83#define SAA7164_BOARD_HAUPPAUGE_HVR2200_4 9
de2fb698 84#define SAA7164_BOARD_HAUPPAUGE_HVR2200_5 10
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85
86#define SAA7164_MAX_UNITS 8
87#define SAA7164_TS_NUMBER_OF_LINES 312
a97781ac 88#define SAA7164_PS_NUMBER_OF_LINES 256
443c1228 89#define SAA7164_PT_ENTRIES 16 /* (312 * 188) / 4096 */
66e1d378 90#define SAA7164_MAX_ENCODER_BUFFERS 64 /* max 5secs of latency at 6Mbps */
e8ce2f21 91#define SAA7164_MAX_VBI_BUFFERS 64
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92
93/* Port related defines */
94#define SAA7164_PORT_TS1 (0)
95#define SAA7164_PORT_TS2 (SAA7164_PORT_TS1 + 1)
96#define SAA7164_PORT_ENC1 (SAA7164_PORT_TS2 + 1)
97#define SAA7164_PORT_ENC2 (SAA7164_PORT_ENC1 + 1)
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98#define SAA7164_PORT_VBI1 (SAA7164_PORT_ENC2 + 1)
99#define SAA7164_PORT_VBI2 (SAA7164_PORT_VBI1 + 1)
100#define SAA7164_MAX_PORTS (SAA7164_PORT_VBI2 + 1)
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101
102#define DBGLVL_FW 4
103#define DBGLVL_DVB 8
104#define DBGLVL_I2C 16
105#define DBGLVL_API 32
106#define DBGLVL_CMD 64
107#define DBGLVL_BUS 128
108#define DBGLVL_IRQ 256
109#define DBGLVL_BUF 512
9b8b0199 110#define DBGLVL_ENC 1024
e8ce2f21 111#define DBGLVL_VBI 2048
0b62ceb0 112#define DBGLVL_THR 4096
1247ff5c 113#define DBGLVL_CPU 8192
443c1228 114
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115#define SAA7164_NORMS \
116 (V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_443)
7615e434 117
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118enum port_t {
119 SAA7164_MPEG_UNDEFINED = 0,
120 SAA7164_MPEG_DVB,
add3f580 121 SAA7164_MPEG_ENCODER,
e8ce2f21 122 SAA7164_MPEG_VBI,
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123};
124
125enum saa7164_i2c_bus_nr {
126 SAA7164_I2C_BUS_0 = 0,
127 SAA7164_I2C_BUS_1,
128 SAA7164_I2C_BUS_2,
129};
130
131enum saa7164_buffer_flags {
132 SAA7164_BUFFER_UNDEFINED = 0,
133 SAA7164_BUFFER_FREE,
134 SAA7164_BUFFER_BUSY,
135 SAA7164_BUFFER_FULL
136};
137
138enum saa7164_unit_type {
139 SAA7164_UNIT_UNDEFINED = 0,
140 SAA7164_UNIT_DIGITAL_DEMODULATOR,
141 SAA7164_UNIT_ANALOG_DEMODULATOR,
142 SAA7164_UNIT_TUNER,
143 SAA7164_UNIT_EEPROM,
144 SAA7164_UNIT_ZILOG_IRBLASTER,
145 SAA7164_UNIT_ENCODER,
146};
147
148/* The PCIe bridge doesn't grant direct access to i2c.
149 * Instead, you address i2c devices using a uniqely
150 * allocated 'unitid' value via a messaging API. This
151 * is a problem. The kernel and existing demod/tuner
152 * drivers expect to talk 'i2c', so we have to maintain
153 * a translation layer, and a series of functions to
154 * convert i2c bus + device address into a unit id.
155 */
156struct saa7164_unit {
157 enum saa7164_unit_type type;
158 u8 id;
159 char *name;
160 enum saa7164_i2c_bus_nr i2c_bus_nr;
161 u8 i2c_bus_addr;
162 u8 i2c_reg_len;
163};
164
165struct saa7164_board {
166 char *name;
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167 enum port_t porta, portb, portc,
168 portd, porte, portf;
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169 enum {
170 SAA7164_CHIP_UNDEFINED = 0,
171 SAA7164_CHIP_REV2,
172 SAA7164_CHIP_REV3,
173 } chiprev;
174 struct saa7164_unit unit[SAA7164_MAX_UNITS];
175};
176
177struct saa7164_subid {
178 u16 subvendor;
179 u16 subdevice;
180 u32 card;
181};
182
96d8420d 183struct saa7164_encoder_fh {
7615e434 184 struct saa7164_port *port;
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185 atomic_t v4l_reading;
186};
187
188struct saa7164_vbi_fh {
189 struct saa7164_port *port;
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190 atomic_t v4l_reading;
191};
192
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193struct saa7164_histogram_bucket {
194 u32 val;
195 u32 count;
196 u64 update_time;
197};
198
199struct saa7164_histogram {
200 char name[32];
201 struct saa7164_histogram_bucket counter1[64];
202};
203
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204struct saa7164_user_buffer {
205 struct list_head list;
206
207 /* Attributes */
208 u8 *data;
209 u32 pos;
210 u32 actual_size;
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211
212 u32 crc;
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213};
214
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215struct saa7164_fw_status {
216
217 /* RISC Core details */
218 u32 status;
219 u32 mode;
220 u32 spec;
221 u32 inst;
222 u32 cpuload;
223 u32 remainheap;
224
225 /* Firmware version */
226 u32 version;
227 u32 major;
228 u32 sub;
229 u32 rel;
230 u32 buildnr;
231};
232
233struct saa7164_dvb {
234 struct mutex lock;
235 struct dvb_adapter adapter;
236 struct dvb_frontend *frontend;
237 struct dvb_demux demux;
238 struct dmxdev dmxdev;
239 struct dmx_frontend fe_hw;
240 struct dmx_frontend fe_mem;
241 struct dvb_net net;
242 int feeding;
243};
244
245struct saa7164_i2c {
246 struct saa7164_dev *dev;
247
248 enum saa7164_i2c_bus_nr nr;
249
250 /* I2C I/O */
251 struct i2c_adapter i2c_adap;
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252 struct i2c_client i2c_client;
253 u32 i2c_rc;
254};
255
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256struct saa7164_ctrl {
257 struct v4l2_queryctrl v;
258};
259
260struct saa7164_tvnorm {
261 char *name;
262 v4l2_std_id id;
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263};
264
265struct saa7164_encoder_params {
266 struct saa7164_tvnorm encodernorm;
267 u32 height;
268 u32 width;
269 u32 is_50hz;
270 u32 bitrate; /* bps */
968b11b2 271 u32 bitrate_peak; /* bps */
2600d71c 272 u32 bitrate_mode;
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273 u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
274
275 u32 audio_sampling_freq;
276 u32 ctl_mute;
277 u32 ctl_aspect;
3ed43cf9 278 u32 refdist;
5fa56ccd 279 u32 gop_size;
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280};
281
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282struct saa7164_vbi_params {
283 struct saa7164_tvnorm encodernorm;
284 u32 height;
285 u32 width;
286 u32 is_50hz;
287 u32 bitrate; /* bps */
288 u32 bitrate_peak; /* bps */
289 u32 bitrate_mode;
290 u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
291
292 u32 audio_sampling_freq;
293 u32 ctl_mute;
294 u32 ctl_aspect;
295 u32 refdist;
296 u32 gop_size;
297};
298
add3f580 299struct saa7164_port;
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300
301struct saa7164_buffer {
302 struct list_head list;
303
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304 /* Note of which h/w buffer list index position we occupy */
305 int idx;
443c1228 306
add3f580 307 struct saa7164_port *port;
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308
309 /* Hardware Specific */
310 /* PCI Memory allocations */
311 enum saa7164_buffer_flags flags; /* Free, Busy, Full */
312
313 /* A block of page align PCI memory */
314 u32 pci_size; /* PCI allocation size in bytes */
12d3203e 315 u64 __iomem *cpu; /* Virtual address */
443c1228 316 dma_addr_t dma; /* Physical address */
12d3203e 317 u32 crc; /* Checksum for the entire buffer data */
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318
319 /* A page table that splits the block into a number of entries */
320 u32 pt_size; /* PCI allocation size in bytes */
12d3203e 321 u64 __iomem *pt_cpu; /* Virtual address */
443c1228 322 dma_addr_t pt_dma; /* Physical address */
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323
324 /* Encoder fops */
325 u32 pos;
326 u32 actual_size;
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327};
328
add3f580 329struct saa7164_port {
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330
331 struct saa7164_dev *dev;
443c1228 332 enum port_t type;
add3f580 333 int nr;
443c1228 334
add3f580 335 /* --- Generic port attributes --- */
443c1228 336
add3f580 337 /* HW stream parameters */
4d270cfb 338 struct tmHWStreamParameters hw_streamingparams;
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339
340 /* DMA configuration values, is seeded during initialization */
4d270cfb 341 struct tmComResDMATermDescrHeader hwcfg;
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342
343 /* hardware specific registers */
344 u32 bufcounter;
345 u32 pitch;
346 u32 bufsize;
347 u32 bufoffset;
348 u32 bufptr32l;
349 u32 bufptr32h;
350 u64 bufptr64;
351
352 u32 numpte; /* Number of entries in array, only valid in head */
add3f580 353
443c1228 354 struct mutex dmaqueue_lock;
443c1228 355 struct saa7164_buffer dmaqueue;
add3f580 356
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357 u64 last_irq_msecs, last_svc_msecs;
358 u64 last_irq_msecs_diff, last_svc_msecs_diff;
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359 u32 last_svc_wp;
360 u32 last_svc_rp;
91d80189 361 u64 last_irq_svc_msecs_diff;
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362 u64 last_read_msecs, last_read_msecs_diff;
363 u64 last_poll_msecs, last_poll_msecs_diff;
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364
365 struct saa7164_histogram irq_interval;
366 struct saa7164_histogram svc_interval;
367 struct saa7164_histogram irq_svc_interval;
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368 struct saa7164_histogram read_interval;
369 struct saa7164_histogram poll_interval;
91d80189 370
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371 /* --- DVB Transport Specific --- */
372 struct saa7164_dvb dvb;
373
374 /* --- Encoder/V4L related attributes --- */
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375 /* Encoder */
376 /* Defaults established in saa7164-encoder.c */
377 struct saa7164_tvnorm encodernorm;
8d2d41e9 378 v4l2_std_id std;
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379 u32 height;
380 u32 width;
381 u32 freq;
382 u32 ts_packet_size;
383 u32 ts_packet_count;
384 u8 mux_input;
385 u8 encoder_profile;
386 u8 video_format;
387 u8 audio_format;
388 u8 video_resolution;
389 u16 ctl_brightness;
390 u16 ctl_contrast;
391 u16 ctl_hue;
392 u16 ctl_saturation;
393 u16 ctl_sharpness;
394 s8 ctl_volume;
395
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396 struct tmComResAFeatureDescrHeader audfeat;
397 struct tmComResEncoderDescrHeader encunit;
398 struct tmComResProcDescrHeader vidproc;
399 struct tmComResExtDevDescrHeader ifunit;
400 struct tmComResTunerDescrHeader tunerunit;
7615e434 401
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402 struct work_struct workenc;
403
e8ce2f21 404 /* V4L Encoder Video */
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405 struct saa7164_encoder_params encoder_params;
406 struct video_device *v4l_device;
407 atomic_t v4l_reader_count;
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408
409 struct saa7164_buffer list_buf_used;
410 struct saa7164_buffer list_buf_free;
411 wait_queue_head_t wait_read;
9230acaa 412
e8ce2f21 413 /* V4L VBI */
4d270cfb 414 struct tmComResVBIFormatDescrHeader vbi_fmt_ntsc;
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415 struct saa7164_vbi_params vbi_params;
416
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417 /* Debug */
418 u32 sync_errors;
419 u32 v_cc_errors;
420 u32 a_cc_errors;
421 u8 last_v_cc;
422 u8 last_a_cc;
1b0e8e46 423 u32 done_first_interrupt;
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424};
425
426struct saa7164_dev {
427 struct list_head devlist;
428 atomic_t refcount;
429
430 /* pci stuff */
431 struct pci_dev *pci;
432 unsigned char pci_rev, pci_lat;
433 int pci_bus, pci_slot;
434 u32 __iomem *lmmio;
435 u8 __iomem *bmmio;
436 u32 __iomem *lmmio2;
437 u8 __iomem *bmmio2;
438 int pci_irqmask;
439
440 /* board details */
441 int nr;
442 int hwrevision;
443 u32 board;
0e72cc8b 444 char name[16];
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445
446 /* firmware status */
447 struct saa7164_fw_status fw_status;
22760ed3 448 u32 firmwareloaded;
443c1228 449
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450 struct tmComResHWDescr hwdesc;
451 struct tmComResInterfaceDescr intfdesc;
452 struct tmComResBusDescr busdesc;
443c1228 453
4d270cfb 454 struct tmComResBusInfo bus;
443c1228 455
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456 /* Interrupt status and ack registers */
457 u32 int_status;
458 u32 int_ack;
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459
460 struct cmd cmds[SAA_CMD_MAX_MSG_UNITS];
461 struct mutex lock;
462
463 /* I2c related */
464 struct saa7164_i2c i2c_bus[3];
465
466 /* Transport related */
c7e242ba 467 struct saa7164_port ports[SAA7164_MAX_PORTS];
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468
469 /* Deferred command/api interrupts handling */
470 struct work_struct workcmd;
471
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472 /* A kernel thread to monitor the firmware log, used
473 * only in debug mode.
474 */
475 struct task_struct *kthread;
476
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477};
478
479extern struct list_head saa7164_devlist;
dd1ee444 480extern unsigned int waitsecs;
66e1d378 481extern unsigned int encoder_buffers;
e8ce2f21 482extern unsigned int vbi_buffers;
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483
484/* ----------------------------------------------------------- */
485/* saa7164-core.c */
486void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
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487void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
488u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
58acca10 489void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val);
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490
491/* ----------------------------------------------------------- */
492/* saa7164-fw.c */
493int saa7164_downloadfirmware(struct saa7164_dev *dev);
494
495/* ----------------------------------------------------------- */
496/* saa7164-i2c.c */
497extern int saa7164_i2c_register(struct saa7164_i2c *bus);
498extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
499extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
500 unsigned int cmd, void *arg);
501
502/* ----------------------------------------------------------- */
503/* saa7164-bus.c */
504int saa7164_bus_setup(struct saa7164_dev *dev);
505void saa7164_bus_dump(struct saa7164_dev *dev);
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506int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg,
507 void *buf);
4d270cfb 508int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg,
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509 void *buf, int peekonly);
510
511/* ----------------------------------------------------------- */
512/* saa7164-cmd.c */
513int saa7164_cmd_send(struct saa7164_dev *dev,
4d270cfb 514 u8 id, enum tmComResCmd command, u16 controlselector,
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515 u16 size, void *buf);
516void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
39e469ab 517int saa7164_irq_dequeue(struct saa7164_dev *dev);
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518
519/* ----------------------------------------------------------- */
520/* saa7164-api.c */
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521int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
522int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
523int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
524 u32 datalen, u8 *data);
525int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
526 u32 datalen, u8 *data);
527int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
528 u32 datalen, u8 *data);
529int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
530int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
531int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
add3f580 532int saa7164_api_transition_port(struct saa7164_port *port, u8 mode);
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533int saa7164_api_initialize_dif(struct saa7164_port *port);
534int saa7164_api_configure_dif(struct saa7164_port *port, u32 std);
535int saa7164_api_set_encoder(struct saa7164_port *port);
536int saa7164_api_get_encoder(struct saa7164_port *port);
537int saa7164_api_set_aspect_ratio(struct saa7164_port *port);
538int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl);
539int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl);
540int saa7164_api_set_videomux(struct saa7164_port *port);
541int saa7164_api_audio_mute(struct saa7164_port *port, int mute);
542int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level);
543int saa7164_api_set_audio_std(struct saa7164_port *port);
544int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect);
545int saa7164_api_get_videomux(struct saa7164_port *port);
e8ce2f21 546int saa7164_api_set_vbi_format(struct saa7164_port *port);
e48836b8 547int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level);
0b62ceb0 548int saa7164_api_collect_debug(struct saa7164_dev *dev);
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549int saa7164_api_get_load_info(struct saa7164_dev *dev,
550 struct tmFwInfoStruct *i);
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551
552/* ----------------------------------------------------------- */
553/* saa7164-cards.c */
554extern struct saa7164_board saa7164_boards[];
555extern const unsigned int saa7164_bcount;
556
557extern struct saa7164_subid saa7164_subids[];
558extern const unsigned int saa7164_idcount;
559
560extern void saa7164_card_list(struct saa7164_dev *dev);
561extern void saa7164_gpio_setup(struct saa7164_dev *dev);
562extern void saa7164_card_setup(struct saa7164_dev *dev);
563
564extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
565extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
566extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
567
568/* ----------------------------------------------------------- */
569/* saa7164-dvb.c */
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570extern int saa7164_dvb_register(struct saa7164_port *port);
571extern int saa7164_dvb_unregister(struct saa7164_port *port);
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572
573/* ----------------------------------------------------------- */
574/* saa7164-buffer.c */
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575extern struct saa7164_buffer *saa7164_buffer_alloc(
576 struct saa7164_port *port, u32 len);
577extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf);
578extern void saa7164_buffer_display(struct saa7164_buffer *buf);
579extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i);
580extern int saa7164_buffer_cfg_port(struct saa7164_port *port);
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581extern struct saa7164_user_buffer *saa7164_buffer_alloc_user(
582 struct saa7164_dev *dev, u32 len);
583extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf);
9230acaa 584extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i);
7615e434 585
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586/* ----------------------------------------------------------- */
587/* saa7164-encoder.c */
588int saa7164_encoder_register(struct saa7164_port *port);
589void saa7164_encoder_unregister(struct saa7164_port *port);
443c1228 590
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591/* ----------------------------------------------------------- */
592/* saa7164-vbi.c */
593int saa7164_vbi_register(struct saa7164_port *port);
594void saa7164_vbi_unregister(struct saa7164_port *port);
595
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596/* ----------------------------------------------------------- */
597
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598extern unsigned int crc_checking;
599
b1912a85 600extern unsigned int saa_debug;
443c1228 601#define dprintk(level, fmt, arg...)\
b1912a85 602 do { if (saa_debug & level)\
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603 printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
604 } while (0)
605
606#define log_warn(fmt, arg...)\
607 do { \
608 printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
609 } while (0)
610
443c1228 611#define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
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612#define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
613
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614#define saa7164_readb(reg) readl(dev->bmmio + (reg))
615#define saa7164_writeb(reg, value) writel((value), dev->bmmio + (reg))
616