3 bttv - Bt848 frame grabber driver
5 bttv's *private* header file -- nobody other than bttv itself
6 should ever include this file.
8 (c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>
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.
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.
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.
28 #include <linux/version.h>
29 #define BTTV_VERSION_CODE KERNEL_VERSION(0,9,17)
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>
41 #include <media/v4l2-common.h>
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>
52 #include "btcx-risc.h"
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
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
68 #define RESOURCE_OVERLAY 1
69 #define RESOURCE_VIDEO_STREAM 2
70 #define RESOURCE_VBI 4
71 #define RESOURCE_VIDEO_READ 8
78 /* Min. value in VDELAY register. */
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)
85 #define clamp(x, low, high) min (max (low, x), high)
88 V4L2_STD_PAL | V4L2_STD_PAL_N | \
89 V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
90 V4L2_STD_NTSC | V4L2_STD_PAL_M | \
92 /* ---------------------------------------------------------- */
98 u16 swidth, sheight; /* scaled standard width, height */
100 u8 adelay, bdelay, iform;
102 u16 hdelayx1, hactivex1;
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. */
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;
116 extern const struct bttv_tvnorm bttv_tvnorms[];
120 int fourcc; /* video4linux 2 */
121 int btformat; /* BT848_COLOR_FMT_* */
122 int btswap; /* BT848_COLOR_CTL_* */
123 int depth; /* bit/pixel */
125 int hshift,vshift; /* for planar modes */
128 /* ---------------------------------------------------------- */
130 struct bttv_geometry {
132 u16 width,hscale,hdelay;
133 u16 sheight,vscale,vdelay,vtotal;
137 /* common v4l buffer stuff -- must be first */
138 struct videobuf_buffer vb;
141 const struct bttv_format *fmt;
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];
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;
160 struct bttv_overlay {
163 enum v4l2_field field;
164 struct v4l2_clip *clips;
169 struct bttv_vbi_fmt {
170 struct v4l2_vbi_format fmt;
172 /* fmt.start[] and count[] refer to this video standard. */
173 const struct bttv_tvnorm *tvnorm;
175 /* Earliest possible start of video capturing with this
176 v4l2_vbi_format, in struct bttv_crop.rect units. */
181 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, int norm);
184 /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
185 struct v4l2_rect rect;
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;
200 #ifdef VIDIOC_G_PRIORITY
201 enum v4l2_priority prio;
203 enum v4l2_buf_type type;
206 struct videobuf_queue cap;
207 const struct bttv_format *fmt;
212 const struct bttv_format *ovfmt;
213 struct bttv_overlay ov;
215 /* Application called VIDIOC_S_CROP. */
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;
226 /* ---------------------------------------------------------- */
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);
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,
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);
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);
257 /* ---------------------------------------------------------- */
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);
264 extern struct videobuf_queue_ops bttv_vbi_qops;
266 /* ---------------------------------------------------------- */
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);
275 /* ---------------------------------------------------------- */
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);
286 #define bttv_printk if (bttv_verbose) printk
287 #define dprintk if (bttv_debug >= 1) printk
288 #define d2printk if (bttv_debug >= 2) printk
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 */
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 */
302 /* for gpio-connected remote control */
304 struct input_dev *dev;
305 struct ir_input_state ir;
312 struct bttv_suspend_state {
317 struct bttv_buffer_set video;
318 struct bttv_buffer *vbi;
324 /* pci device config */
326 unsigned char revision;
327 unsigned char __iomem *bt848_mmio; /* pointer to mmio */
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;
334 struct bttv_pll_info pll;
337 int (*custom_irq)(struct bttv *btv);
341 /* old gpio interface */
342 wait_queue_head_t gpioq;
345 void (*volume_gpio)(struct bttv *btv, __u16 volume);
346 void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
348 /* new gpio interface */
349 spinlock_t gpio_lock;
352 struct i2c_algo_bit_data i2c_algo;
353 struct i2c_client i2c_client;
354 int i2c_state, i2c_rc;
356 wait_queue_head_t i2c_queue;
357 struct i2c_client *i2c_msp34xx_client;
358 struct i2c_client *i2c_tvaudio_client;
360 /* video4linux (1) */
361 struct video_device *video_dev;
362 struct video_device *radio_dev;
363 struct video_device *vbi_dev;
365 /* infrared remote */
367 struct card_ir *remote;
373 #ifdef VIDIOC_G_PRIORITY
374 struct v4l2_prio_state prio;
382 int tvnorm,hue,contrast,bright,saturation;
383 struct v4l2_framebuffer fbuf;
384 unsigned int field_count;
386 /* various options */
393 int opt_whitecrush_upper;
394 int opt_whitecrush_lower;
396 int opt_full_luma_range;
399 /* radio data/state */
403 /* miro/pinnacle + Aimslab VHX
404 philips matchbox (tea5757 radio tuner) support */
412 /* ISA stuff (Terratec Active Radio Upgrade) */
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 */
429 unsigned long cap_ctl;
430 unsigned long dma_on;
431 struct timer_list timeout;
432 struct bttv_suspend_state state;
436 unsigned int framedrop;
437 unsigned int irq_total;
443 /* used to make dvb-bt8xx autoloadable */
444 struct work_struct request_module_wk;
446 /* Default (0) and current (1) video capturing and overlay
447 cropping parameters in bttv_tvnorm.cropcap units. Protected
449 struct bttv_crop crop[2];
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. */
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. */
464 extern unsigned int bttv_num;
465 extern struct bttv bttvs[BTTV_MAX];
469 #define btwrite(dat,adr) writel((dat), btv->bt848_mmio+(adr))
470 #define btread(adr) readl(btv->bt848_mmio+(adr))
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)
476 #endif /* _BTTVP_H_ */