1 /*
2
3 bttv - Bt848 frame grabber driver
4
5 bttv's *private* header file -- nobody other than bttv itself
6 should ever include this file.
7
8 (c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25 #ifndef _BTTVP_H_
26 #define _BTTVP_H_
27
28 #include <linux/version.h>
29 #define BTTV_VERSION_CODE KERNEL_VERSION(0,9,17)
30
31 #include <linux/types.h>
32 #include <linux/wait.h>
33 #include <linux/i2c.h>
34 #include <linux/i2c-algo-bit.h>
35 #include <linux/videodev.h>
36 #include <linux/pci.h>
37 #include <linux/input.h>
38 #include <linux/mutex.h>
39 #include <linux/scatterlist.h>
40 #include <asm/io.h>
41 #include <media/v4l2-common.h>
42
43 #include <linux/device.h>
44 #include <media/videobuf-dma-sg.h>
45 #include <media/tuner.h>
46 #include <media/tveeprom.h>
47 #include <media/ir-common.h>
48
49
50 #include "bt848.h"
51 #include "bttv.h"
52 #include "btcx-risc.h"
53
54 #ifdef __KERNEL__
55
56 #define FORMAT_FLAGS_DITHER 0x01
57 #define FORMAT_FLAGS_PACKED 0x02
58 #define FORMAT_FLAGS_PLANAR 0x04
59 #define FORMAT_FLAGS_RAW 0x08
60 #define FORMAT_FLAGS_CrCb 0x10
61
62 #define RISC_SLOT_O_VBI 4
63 #define RISC_SLOT_O_FIELD 6
64 #define RISC_SLOT_E_VBI 10
65 #define RISC_SLOT_E_FIELD 12
66 #define RISC_SLOT_LOOP 14
67
68 #define RESOURCE_OVERLAY 1
69 #define RESOURCE_VIDEO_STREAM 2
70 #define RESOURCE_VBI 4
71 #define RESOURCE_VIDEO_READ 8
72
73 #define RAW_LINES 640
74 #define RAW_BPL 1024
75
76 #define UNSET (-1U)
77
78 /* Min. value in VDELAY register. */
79 #define MIN_VDELAY 2
80 /* Even to get Cb first, odd for Cr. */
81 #define MAX_HDELAY (0x3FF & -2)
82 /* Limits scaled width, which must be a multiple of 4. */
83 #define MAX_HACTIVE (0x3FF & -4)
84
85 #define clamp(x, low, high) min (max (low, x), high)
86
87 #define BTTV_NORMS (\
88 V4L2_STD_PAL | V4L2_STD_PAL_N | \
89 V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
90 V4L2_STD_NTSC | V4L2_STD_PAL_M | \
91 V4L2_STD_PAL_60)
92 /* ---------------------------------------------------------- */
93
94 struct bttv_tvnorm {
95 int v4l2_id;
96 char *name;
97 u32 Fsc;
98 u16 swidth, sheight; /* scaled standard width, height */
99 u16 totalwidth;
100 u8 adelay, bdelay, iform;
101 u32 scaledtwidth;
102 u16 hdelayx1, hactivex1;
103 u16 vdelay;
104 u8 vbipack;
105 u16 vtotal;
106 int sram;
107 /* ITU-R frame line number of the first VBI line we can
108 capture, of the first and second field. The last possible line
109 is determined by cropcap.bounds. */
110 u16 vbistart[2];
111 /* Horizontally this counts fCLKx1 samples following the leading
112 edge of the horizontal sync pulse, vertically ITU-R frame line
113 numbers of the first field times two (2, 4, 6, ... 524 or 624). */
114 struct v4l2_cropcap cropcap;
115 };
116 extern const struct bttv_tvnorm bttv_tvnorms[];
117
118 struct bttv_format {
119 char *name;
120 int fourcc; /* video4linux 2 */
121 int btformat; /* BT848_COLOR_FMT_* */
122 int btswap; /* BT848_COLOR_CTL_* */
123 int depth; /* bit/pixel */
124 int flags;
125 int hshift,vshift; /* for planar modes */
126 };
127
128 /* ---------------------------------------------------------- */
129
130 struct bttv_geometry {
131 u8 vtc,crop,comb;
132 u16 width,hscale,hdelay;
133 u16 sheight,vscale,vdelay,vtotal;
134 };
135
136 struct bttv_buffer {
137 /* common v4l buffer stuff -- must be first */
138 struct videobuf_buffer vb;
139
140 /* bttv specific */
141 const struct bttv_format *fmt;
142 int tvnorm;
143 int btformat;
144 int btswap;
145 struct bttv_geometry geo;
146 struct btcx_riscmem top;
147 struct btcx_riscmem bottom;
148 struct v4l2_rect crop;
149 unsigned int vbi_skip[2];
150 unsigned int vbi_count[2];
151 };
152
153 struct bttv_buffer_set {
154 struct bttv_buffer *top; /* top field buffer */
155 struct bttv_buffer *bottom; /* bottom field buffer */
156 unsigned int top_irq;
157 unsigned int frame_irq;
158 };
159
160 struct bttv_overlay {
161 int tvnorm;
162 struct v4l2_rect w;
163 enum v4l2_field field;
164 struct v4l2_clip *clips;
165 int nclips;
166 int setup_ok;
167 };
168
169 struct bttv_vbi_fmt {
170 struct v4l2_vbi_format fmt;
171
172 /* fmt.start[] and count[] refer to this video standard. */
173 const struct bttv_tvnorm *tvnorm;
174
175 /* Earliest possible start of video capturing with this
176 v4l2_vbi_format, in struct bttv_crop.rect units. */
177 __s32 end;
178 };
179
180 /* bttv-vbi.c */
181 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, int norm);
182
183 struct bttv_crop {
184 /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
185 struct v4l2_rect rect;
186
187 /* Scaled image size limits with this crop rect. Divide
188 max_height, but not min_height, by two when capturing
189 single fields. See also bttv_crop_reset() and
190 bttv_crop_adjust() in bttv-driver.c. */
191 __s32 min_scaled_width;
192 __s32 min_scaled_height;
193 __s32 max_scaled_width;
194 __s32 max_scaled_height;
195 };
196
197 struct bttv_fh {
198 struct bttv *btv;
199 int resources;
200 #ifdef VIDIOC_G_PRIORITY
201 enum v4l2_priority prio;
202 #endif
203 enum v4l2_buf_type type;
204
205 /* video capture */
206 struct videobuf_queue cap;
207 const struct bttv_format *fmt;
208 int width;
209 int height;
210
211 /* video overlay */
212 const struct bttv_format *ovfmt;
213 struct bttv_overlay ov;
214
215 /* Application called VIDIOC_S_CROP. */
216 int do_crop;
217
218 /* vbi capture */
219 struct videobuf_queue vbi;
220 /* Current VBI capture window as seen through this fh (cannot
221 be global for compatibility with earlier drivers). Protected
222 by struct bttv.lock and struct bttv_fh.vbi.lock. */
223 struct bttv_vbi_fmt vbi_fmt;
224 };
225
226 /* ---------------------------------------------------------- */
227 /* bttv-risc.c */
228
229 /* risc code generators - capture */
230 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
231 struct scatterlist *sglist,
232 unsigned int offset, unsigned int bpl,
233 unsigned int pitch, unsigned int skip_lines,
234 unsigned int store_lines);
235
236 /* control dma register + risc main loop */
237 void bttv_set_dma(struct bttv *btv, int override);
238 int bttv_risc_init_main(struct bttv *btv);
239 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
240 int irqflags);
241
242 /* capture buffer handling */
243 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
244 int bttv_buffer_activate_video(struct bttv *btv,
245 struct bttv_buffer_set *set);
246 int bttv_buffer_activate_vbi(struct bttv *btv,
247 struct bttv_buffer *vbi);
248 void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
249 struct bttv_buffer *buf);
250
251 /* overlay handling */
252 int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
253 const struct bttv_format *fmt,
254 struct bttv_buffer *buf);
255
256
257 /* ---------------------------------------------------------- */
258 /* bttv-vbi.c */
259
260 int bttv_try_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
261 int bttv_g_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
262 int bttv_s_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
263
264 extern struct videobuf_queue_ops bttv_vbi_qops;
265
266 /* ---------------------------------------------------------- */
267 /* bttv-gpio.c */
268
269
270 extern struct bus_type bttv_sub_bus_type;
271 int bttv_sub_add_device(struct bttv_core *core, char *name);
272 int bttv_sub_del_devices(struct bttv_core *core);
273
274
275 /* ---------------------------------------------------------- */
276 /* bttv-driver.c */
277
278 /* insmod options */
279 extern unsigned int bttv_verbose;
280 extern unsigned int bttv_debug;
281 extern unsigned int bttv_gpio;
282 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
283 extern int init_bttv_i2c(struct bttv *btv);
284 extern int fini_bttv_i2c(struct bttv *btv);
285
286 #define bttv_printk if (bttv_verbose) printk
287 #define dprintk if (bttv_debug >= 1) printk
288 #define d2printk if (bttv_debug >= 2) printk
289
290 #define BTTV_MAX_FBUF 0x208000
291 #define BTTV_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
292 #define BTTV_FREE_IDLE msecs_to_jiffies(1000) /* one second */
293
294
295 struct bttv_pll_info {
296 unsigned int pll_ifreq; /* PLL input frequency */
297 unsigned int pll_ofreq; /* PLL output frequency */
298 unsigned int pll_crystal; /* Crystal used for input */
299 unsigned int pll_current; /* Currently programmed ofreq */
300 };
301
302 /* for gpio-connected remote control */
303 struct bttv_input {
304 struct input_dev *dev;
305 struct ir_input_state ir;
306 char name[32];
307 char phys[32];
308 u32 mask_keycode;
309 u32 mask_keydown;
310 };
311
312 struct bttv_suspend_state {
313 u32 gpio_enable;
314 u32 gpio_data;
315 int disabled;
316 int loop_irq;
317 struct bttv_buffer_set video;
318 struct bttv_buffer *vbi;
319 };
320
321 struct bttv {
322 struct bttv_core c;
323
324 /* pci device config */
325 unsigned short id;
326 unsigned char revision;
327 unsigned char __iomem *bt848_mmio; /* pointer to mmio */
328
329 /* card configuration info */
330 unsigned int cardid; /* pci subsystem id (bt878 based ones) */
331 unsigned int tuner_type; /* tuner chip type */
332 unsigned int tda9887_conf;
333 unsigned int svhs;
334 struct bttv_pll_info pll;
335 int triton1;
336 int gpioirq;
337 int (*custom_irq)(struct bttv *btv);
338
339 int use_i2c_hw;
340
341 /* old gpio interface */
342 wait_queue_head_t gpioq;
343 int shutdown;
344
345 void (*volume_gpio)(struct bttv *btv, __u16 volume);
346 void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
347
348 /* new gpio interface */
349 spinlock_t gpio_lock;
350
351 /* i2c layer */
352 struct i2c_algo_bit_data i2c_algo;
353 struct i2c_client i2c_client;
354 int i2c_state, i2c_rc;
355 int i2c_done;
356 wait_queue_head_t i2c_queue;
357 struct i2c_client *i2c_msp34xx_client;
358 struct i2c_client *i2c_tvaudio_client;
359
360 /* video4linux (1) */
361 struct video_device *video_dev;
362 struct video_device *radio_dev;
363 struct video_device *vbi_dev;
364
365 /* infrared remote */
366 int has_remote;
367 struct card_ir *remote;
368
369 /* locking */
370 spinlock_t s_lock;
371 struct mutex lock;
372 int resources;
373 #ifdef VIDIOC_G_PRIORITY
374 struct v4l2_prio_state prio;
375 #endif
376
377 /* video state */
378 unsigned int input;
379 unsigned int audio;
380 unsigned int mute;
381 unsigned long freq;
382 int tvnorm,hue,contrast,bright,saturation;
383 struct v4l2_framebuffer fbuf;
384 unsigned int field_count;
385
386 /* various options */
387 int opt_combfilter;
388 int opt_lumafilter;
389 int opt_automute;
390 int opt_chroma_agc;
391 int opt_adc_crush;
392 int opt_vcr_hack;
393 int opt_whitecrush_upper;
394 int opt_whitecrush_lower;
395 int opt_uv_ratio;
396 int opt_full_luma_range;
397 int opt_coring;
398
399 /* radio data/state */
400 int has_radio;
401 int radio_user;
402
403 /* miro/pinnacle + Aimslab VHX
404 philips matchbox (tea5757 radio tuner) support */
405 int has_matchbox;
406 int mbox_we;
407 int mbox_data;
408 int mbox_clk;
409 int mbox_most;
410 int mbox_mask;
411
412 /* ISA stuff (Terratec Active Radio Upgrade) */
413 int mbox_ior;
414 int mbox_iow;
415 int mbox_csel;
416
417 /* risc memory management data
418 - must acquire s_lock before changing these
419 - only the irq handler is supported to touch top + bottom + vcurr */
420 struct btcx_riscmem main;
421 struct bttv_buffer *screen; /* overlay */
422 struct list_head capture; /* video capture queue */
423 struct list_head vcapture; /* vbi capture queue */
424 struct bttv_buffer_set curr; /* active buffers */
425 struct bttv_buffer *cvbi; /* active vbi buffer */
426 int loop_irq;
427 int new_input;
428
429 unsigned long cap_ctl;
430 unsigned long dma_on;
431 struct timer_list timeout;
432 struct bttv_suspend_state state;
433
434 /* stats */
435 unsigned int errors;
436 unsigned int framedrop;
437 unsigned int irq_total;
438 unsigned int irq_me;
439
440 unsigned int users;
441 struct bttv_fh init;
442
443 /* used to make dvb-bt8xx autoloadable */
444 struct work_struct request_module_wk;
445
446 /* Default (0) and current (1) video capturing and overlay
447 cropping parameters in bttv_tvnorm.cropcap units. Protected
448 by bttv.lock. */
449 struct bttv_crop crop[2];
450
451 /* Earliest possible start of video capturing in
452 bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
453 and free_btres(). Protected by bttv.lock. */
454 __s32 vbi_end;
455
456 /* Latest possible end of VBI capturing (= crop[x].rect.top when
457 VIDEO_RESOURCES are locked). Set by check_alloc_btres()
458 and free_btres(). Protected by bttv.lock. */
459 __s32 crop_start;
460 };
461
462 /* our devices */
463 #define BTTV_MAX 16
464 extern unsigned int bttv_num;
465 extern struct bttv bttvs[BTTV_MAX];
466
467 #endif
468
469 #define btwrite(dat,adr) writel((dat), btv->bt848_mmio+(adr))
470 #define btread(adr) readl(btv->bt848_mmio+(adr))
471
472 #define btand(dat,adr) btwrite((dat) & btread(adr), adr)
473 #define btor(dat,adr) btwrite((dat) | btread(adr), adr)
474 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
475
476 #endif /* _BTTVP_H_ */
477
478 /*
479 * Local variables:
480 * c-basic-offset: 8
481 * End:
482 */
483
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