1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3
4 bttv - Bt848 frame grabber driver
5
6 bttv's *private* header file -- nobody other than bttv itself
7 should ever include this file.
8
9 (c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>
10
11 */
12
13 #ifndef _BTTVP_H_
14 #define _BTTVP_H_
15
16 #include <linux/types.h>
17 #include <linux/wait.h>
18 #include <linux/i2c.h>
19 #include <linux/i2c-algo-bit.h>
20 #include <linux/pci.h>
21 #include <linux/input.h>
22 #include <linux/mutex.h>
23 #include <linux/scatterlist.h>
24 #include <linux/device.h>
25 #include <asm/io.h>
26 #include <media/v4l2-common.h>
27 #include <media/v4l2-ctrls.h>
28 #include <media/v4l2-fh.h>
29 #include <media/videobuf2-dma-sg.h>
30 #include <media/tveeprom.h>
31 #include <media/rc-core.h>
32 #include <media/i2c/ir-kbd-i2c.h>
33 #include <media/drv-intf/tea575x.h>
34
35 #include "bt848.h"
36 #include "bttv.h"
37 #include "btcx-risc.h"
38
39 #ifdef __KERNEL__
40
41 #define FORMAT_FLAGS_DITHER 0x01
42 #define FORMAT_FLAGS_PACKED 0x02
43 #define FORMAT_FLAGS_PLANAR 0x04
44 #define FORMAT_FLAGS_RAW 0x08
45 #define FORMAT_FLAGS_CrCb 0x10
46
47 #define RISC_SLOT_O_VBI 4
48 #define RISC_SLOT_O_FIELD 6
49 #define RISC_SLOT_E_VBI 10
50 #define RISC_SLOT_E_FIELD 12
51 #define RISC_SLOT_LOOP 14
52
53 #define RESOURCE_VIDEO_STREAM 2
54 #define RESOURCE_VBI 4
55 #define RESOURCE_VIDEO_READ 8
56
57 #define RAW_LINES 640
58 #define RAW_BPL 1024
59
60 #define UNSET (-1U)
61
62 /* Min. value in VDELAY register. */
63 #define MIN_VDELAY 2
64 /* Even to get Cb first, odd for Cr. */
65 #define MAX_HDELAY (0x3FF & -2)
66 /* Limits scaled width, which must be a multiple of 4. */
67 #define MAX_HACTIVE (0x3FF & -4)
68
69 #define BTTV_NORMS (\
70 V4L2_STD_PAL | V4L2_STD_PAL_N | \
71 V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
72 V4L2_STD_NTSC | V4L2_STD_PAL_M | \
73 V4L2_STD_PAL_60)
74 /* ---------------------------------------------------------- */
75
76 struct bttv_tvnorm {
77 int v4l2_id;
78 char *name;
79 u32 Fsc;
80 u16 swidth, sheight; /* scaled standard width, height */
81 u16 totalwidth;
82 u8 adelay, bdelay, iform;
83 u32 scaledtwidth;
84 u16 hdelayx1, hactivex1;
85 u16 vdelay;
86 u8 vbipack;
87 u16 vtotal;
88 int sram;
89 /* ITU-R frame line number of the first VBI line we can
90 capture, of the first and second field. The last possible line
91 is determined by cropcap.bounds. */
92 u16 vbistart[2];
93 /* Horizontally this counts fCLKx1 samples following the leading
94 edge of the horizontal sync pulse, vertically ITU-R frame line
95 numbers of the first field times two (2, 4, 6, ... 524 or 624). */
96 struct v4l2_cropcap cropcap;
97 };
98 extern const struct bttv_tvnorm bttv_tvnorms[];
99
100 struct bttv_format {
101 int fourcc; /* video4linux 2 */
102 int btformat; /* BT848_COLOR_FMT_* */
103 int btswap; /* BT848_COLOR_CTL_* */
104 int depth; /* bit/pixel */
105 int flags;
106 int hshift,vshift; /* for planar modes */
107 };
108
109 struct bttv_ir {
110 struct rc_dev *dev;
111 struct bttv *btv;
112 struct timer_list timer;
113
114 char name[32];
115 char phys[32];
116
117 /* Usual gpio signalling */
118 u32 mask_keycode;
119 u32 mask_keydown;
120 u32 mask_keyup;
121 u32 polling;
122 u32 last_gpio;
123 int shift_by;
124 int rc5_remote_gap;
125
126 /* RC5 gpio */
127 bool rc5_gpio; /* Is RC5 legacy GPIO enabled? */
128 u32 last_bit; /* last raw bit seen */
129 u32 code; /* raw code under construction */
130 ktime_t base_time; /* time of last seen code */
131 bool active; /* building raw code */
132 };
133
134
135 /* ---------------------------------------------------------- */
136
137 struct bttv_geometry {
138 u8 vtc,crop,comb;
139 u16 width,hscale,hdelay;
140 u16 sheight,vscale,vdelay,vtotal;
141 };
142
143 struct bttv_buffer {
144 /* common v4l buffer stuff -- must be first */
145 struct vb2_v4l2_buffer vbuf;
146 struct list_head list;
147
148 /* bttv specific */
149 int btformat;
150 int btswap;
151 struct bttv_geometry geo;
152 struct btcx_riscmem top;
153 struct btcx_riscmem bottom;
154 };
155
156 struct bttv_buffer_set {
157 struct bttv_buffer *top; /* top field buffer */
158 struct bttv_buffer *bottom; /* bottom field buffer */
159 unsigned int top_irq;
160 unsigned int frame_irq;
161 };
162
163 struct bttv_vbi_fmt {
164 struct v4l2_vbi_format fmt;
165
166 /* fmt.start[] and count[] refer to this video standard. */
167 const struct bttv_tvnorm *tvnorm;
168
169 /* Earliest possible start of video capturing with this
170 v4l2_vbi_format, in struct bttv_crop.rect units. */
171 __s32 end;
172 };
173
174 /* bttv-vbi.c */
175 extern const struct vb2_ops bttv_vbi_qops;
176
177 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, unsigned int norm);
178
179 struct bttv_crop {
180 /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
181 struct v4l2_rect rect;
182
183 /* Scaled image size limits with this crop rect. Divide
184 max_height, but not min_height, by two when capturing
185 single fields. See also bttv_crop_reset() and
186 bttv_crop_adjust() in bttv-driver.c. */
187 __s32 min_scaled_width;
188 __s32 min_scaled_height;
189 __s32 max_scaled_width;
190 __s32 max_scaled_height;
191 };
192
193 /* ---------------------------------------------------------- */
194 /* bttv-risc.c */
195
196 /* risc code generators - capture */
197 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
198 struct scatterlist *sglist,
199 unsigned int offset, unsigned int bpl,
200 unsigned int pitch, unsigned int skip_lines,
201 unsigned int store_lines);
202
203 /* control dma register + risc main loop */
204 void bttv_set_dma(struct bttv *btv, int override);
205 int bttv_risc_init_main(struct bttv *btv);
206 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
207 int irqflags);
208
209 /* capture buffer handling */
210 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
211 int bttv_buffer_activate_video(struct bttv *btv,
212 struct bttv_buffer_set *set);
213 int bttv_buffer_risc_vbi(struct bttv *btv, struct bttv_buffer *buf);
214 int bttv_buffer_activate_vbi(struct bttv *btv,
215 struct bttv_buffer *vbi);
216
217 /* ---------------------------------------------------------- */
218 /* bttv-vbi.c */
219
220 /*
221 * 2048 for compatibility with earlier driver versions. The driver really
222 * stores 1024 + tvnorm->vbipack * 4 samples per line in the buffer. Note
223 * tvnorm->vbipack is <= 0xFF (limit of VBIPACK_LO + HI is 0x1FF DWORDs) and
224 * VBI read()s store a frame counter in the last four bytes of the VBI image.
225 */
226 #define VBI_BPL 2048
227
228 #define VBI_DEFLINES 16
229
230 int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
231 int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
232 int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
233
234 /* ---------------------------------------------------------- */
235 /* bttv-gpio.c */
236
237 extern const struct bus_type bttv_sub_bus_type;
238 int bttv_sub_add_device(struct bttv_core *core, char *name);
239 int bttv_sub_del_devices(struct bttv_core *core);
240
241 /* ---------------------------------------------------------- */
242 /* bttv-input.c */
243
244 extern void init_bttv_i2c_ir(struct bttv *btv);
245
246 /* ---------------------------------------------------------- */
247 /* bttv-i2c.c */
248 extern int init_bttv_i2c(struct bttv *btv);
249 extern int fini_bttv_i2c(struct bttv *btv);
250
251 /* ---------------------------------------------------------- */
252 /* bttv-driver.c */
253
254 /* insmod options */
255 extern unsigned int bttv_verbose;
256 extern unsigned int bttv_debug;
257 extern unsigned int bttv_gpio;
258 int check_alloc_btres_lock(struct bttv *btv, int bit);
259 void free_btres_lock(struct bttv *btv, int bits);
260 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
261
262 #define dprintk(fmt, ...) \
263 do { \
264 if (bttv_debug >= 1) \
265 pr_debug(fmt, ##__VA_ARGS__); \
266 } while (0)
267 #define dprintk_cont(fmt, ...) \
268 do { \
269 if (bttv_debug >= 1) \
270 pr_cont(fmt, ##__VA_ARGS__); \
271 } while (0)
272 #define d2printk(fmt, ...) \
273 do { \
274 if (bttv_debug >= 2) \
275 printk(fmt, ##__VA_ARGS__); \
276 } while (0)
277
278 #define BTTV_MAX_FBUF 0x208000
279 #define BTTV_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
280 #define BTTV_FREE_IDLE msecs_to_jiffies(1000) /* one second */
281
282
283 struct bttv_pll_info {
284 unsigned int pll_ifreq; /* PLL input frequency */
285 unsigned int pll_ofreq; /* PLL output frequency */
286 unsigned int pll_crystal; /* Crystal used for input */
287 unsigned int pll_current; /* Currently programmed ofreq */
288 };
289
290 /* for gpio-connected remote control */
291 struct bttv_input {
292 struct input_dev *dev;
293 char name[32];
294 char phys[32];
295 u32 mask_keycode;
296 u32 mask_keydown;
297 };
298
299 struct bttv_suspend_state {
300 u32 gpio_enable;
301 u32 gpio_data;
302 int disabled;
303 int loop_irq;
304 struct bttv_buffer_set video;
305 struct bttv_buffer *vbi;
306 };
307
308 struct bttv_tea575x_gpio {
309 u8 data, clk, wren, most;
310 };
311
312 struct bttv {
313 struct bttv_core c;
314
315 /* pci device config */
316 unsigned short id;
317 unsigned char revision;
318 unsigned char __iomem *bt848_mmio; /* pointer to mmio */
319
320 /* card configuration info */
321 unsigned int cardid; /* pci subsystem id (bt878 based ones) */
322 unsigned int tuner_type; /* tuner chip type */
323 unsigned int tda9887_conf;
324 unsigned int svhs, dig;
325 unsigned int has_saa6588:1;
326 struct bttv_pll_info pll;
327 int triton1;
328 int gpioirq;
329
330 int use_i2c_hw;
331
332 /* old gpio interface */
333 int shutdown;
334
335 void (*volume_gpio)(struct bttv *btv, __u16 volume);
336 void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
337
338 /* new gpio interface */
339 spinlock_t gpio_lock;
340
341 /* i2c layer */
342 struct i2c_algo_bit_data i2c_algo;
343 struct i2c_client i2c_client;
344 int i2c_state, i2c_rc;
345 int i2c_done;
346 wait_queue_head_t i2c_queue;
347 struct v4l2_subdev *sd_msp34xx;
348 struct v4l2_subdev *sd_tvaudio;
349 struct v4l2_subdev *sd_tda7432;
350
351 /* video4linux (1) */
352 struct video_device video_dev;
353 struct video_device radio_dev;
354 struct video_device vbi_dev;
355
356 /* controls */
357 struct v4l2_ctrl_handler ctrl_handler;
358 struct v4l2_ctrl_handler radio_ctrl_handler;
359
360 /* infrared remote */
361 int has_remote;
362 struct bttv_ir *remote;
363
364 /* I2C remote data */
365 struct IR_i2c_init_data init_data;
366
367 /* locking */
368 spinlock_t s_lock;
369 struct mutex lock;
370 int resources;
371
372 /* video state */
373 unsigned int input;
374 unsigned int audio_input;
375 unsigned int mute;
376 unsigned long tv_freq;
377 unsigned int tvnorm;
378 v4l2_std_id std;
379 int hue, contrast, bright, saturation;
380 struct v4l2_framebuffer fbuf;
381 __u32 field_count;
382
383 /* various options */
384 int opt_combfilter;
385 int opt_automute;
386 int opt_vcr_hack;
387 int opt_uv_ratio;
388
389 /* radio data/state */
390 int has_radio;
391 int has_radio_tuner;
392 int radio_user;
393 int radio_uses_msp_demodulator;
394 unsigned long radio_freq;
395
396 /* miro/pinnacle + Aimslab VHX
397 philips matchbox (tea5757 radio tuner) support */
398 int has_tea575x;
399 struct bttv_tea575x_gpio tea_gpio;
400 struct snd_tea575x tea;
401
402 /* ISA stuff (Terratec Active Radio Upgrade) */
403 int mbox_ior;
404 int mbox_iow;
405 int mbox_csel;
406
407 /* switch status for multi-controller cards */
408 char sw_status[4];
409
410 /* risc memory management data
411 - must acquire s_lock before changing these
412 - only the irq handler is supported to touch top + bottom + vcurr */
413 struct btcx_riscmem main;
414 struct list_head capture; /* video capture queue */
415 struct list_head vcapture; /* vbi capture queue */
416 struct bttv_buffer_set curr; /* active buffers */
417 struct bttv_buffer *cvbi; /* active vbi buffer */
418 int loop_irq;
419 int new_input;
420
421 unsigned long dma_on;
422 struct timer_list timeout;
423 struct bttv_suspend_state state;
424
425 /* stats */
426 unsigned int errors;
427 unsigned int framedrop;
428 unsigned int irq_total;
429 unsigned int irq_me;
430
431 unsigned int users;
432 struct v4l2_fh fh;
433 enum v4l2_buf_type type;
434
435 enum v4l2_field field;
436 int field_last;
437
438 /* video capture */
439 struct vb2_queue capq;
440 const struct bttv_format *fmt;
441 int width;
442 int height;
443
444 /* vbi capture */
445 struct vb2_queue vbiq;
446 struct bttv_vbi_fmt vbi_fmt;
447 unsigned int vbi_count[2];
448
449 /* Application called VIDIOC_S_SELECTION. */
450 int do_crop;
451
452 /* used to make dvb-bt8xx autoloadable */
453 struct work_struct request_module_wk;
454
455 /* Default (0) and current (1) video capturing
456 cropping parameters in bttv_tvnorm.cropcap units. Protected
457 by bttv.lock. */
458 struct bttv_crop crop[2];
459
460 /* Earliest possible start of video capturing in
461 bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
462 and free_btres(). Protected by bttv.lock. */
463 __s32 vbi_end;
464
465 /* Latest possible end of VBI capturing (= crop[x].rect.top when
466 VIDEO_RESOURCES are locked). Set by check_alloc_btres()
467 and free_btres(). Protected by bttv.lock. */
468 __s32 crop_start;
469 };
470
to_bttv(struct v4l2_device * v4l2_dev)471 static inline struct bttv *to_bttv(struct v4l2_device *v4l2_dev)
472 {
473 return container_of(v4l2_dev, struct bttv, c.v4l2_dev);
474 }
475
476 /* our devices */
477 #define BTTV_MAX 32
478 extern unsigned int bttv_num;
479 extern struct bttv *bttvs[BTTV_MAX];
480
bttv_muxsel(const struct bttv * btv,unsigned int input)481 static inline unsigned int bttv_muxsel(const struct bttv *btv,
482 unsigned int input)
483 {
484 return (bttv_tvcards[btv->c.type].muxsel >> (input * 2)) & 3;
485 }
486
487 #endif
488
489 void init_irqreg(struct bttv *btv);
490
491 #define btwrite(dat,adr) writel((dat), btv->bt848_mmio+(adr))
492 #define btread(adr) readl(btv->bt848_mmio+(adr))
493
494 #define btand(dat,adr) btwrite((dat) & btread(adr), adr)
495 #define btor(dat,adr) btwrite((dat) | btread(adr), adr)
496 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
497
498 #endif /* _BTTVP_H_ */
499