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/tveeprom.h>
46 #include <media/ir-common.h>
51 #include "btcx-risc.h"
55 #define FORMAT_FLAGS_DITHER 0x01
56 #define FORMAT_FLAGS_PACKED 0x02
57 #define FORMAT_FLAGS_PLANAR 0x04
58 #define FORMAT_FLAGS_RAW 0x08
59 #define FORMAT_FLAGS_CrCb 0x10
61 #define RISC_SLOT_O_VBI 4
62 #define RISC_SLOT_O_FIELD 6
63 #define RISC_SLOT_E_VBI 10
64 #define RISC_SLOT_E_FIELD 12
65 #define RISC_SLOT_LOOP 14
67 #define RESOURCE_OVERLAY 1
68 #define RESOURCE_VIDEO_STREAM 2
69 #define RESOURCE_VBI 4
70 #define RESOURCE_VIDEO_READ 8
77 /* Min. value in VDELAY register. */
79 /* Even to get Cb first, odd for Cr. */
80 #define MAX_HDELAY (0x3FF & -2)
81 /* Limits scaled width, which must be a multiple of 4. */
82 #define MAX_HACTIVE (0x3FF & -4)
85 V4L2_STD_PAL | V4L2_STD_PAL_N | \
86 V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
87 V4L2_STD_NTSC | V4L2_STD_PAL_M | \
89 /* ---------------------------------------------------------- */
95 u16 swidth, sheight; /* scaled standard width, height */
97 u8 adelay, bdelay, iform;
99 u16 hdelayx1, hactivex1;
104 /* ITU-R frame line number of the first VBI line we can
105 capture, of the first and second field. The last possible line
106 is determined by cropcap.bounds. */
108 /* Horizontally this counts fCLKx1 samples following the leading
109 edge of the horizontal sync pulse, vertically ITU-R frame line
110 numbers of the first field times two (2, 4, 6, ... 524 or 624). */
111 struct v4l2_cropcap cropcap;
113 extern const struct bttv_tvnorm bttv_tvnorms[];
117 int fourcc; /* video4linux 2 */
118 int btformat; /* BT848_COLOR_FMT_* */
119 int btswap; /* BT848_COLOR_CTL_* */
120 int depth; /* bit/pixel */
122 int hshift,vshift; /* for planar modes */
125 /* ---------------------------------------------------------- */
127 struct bttv_geometry {
129 u16 width,hscale,hdelay;
130 u16 sheight,vscale,vdelay,vtotal;
134 /* common v4l buffer stuff -- must be first */
135 struct videobuf_buffer vb;
138 const struct bttv_format *fmt;
142 struct bttv_geometry geo;
143 struct btcx_riscmem top;
144 struct btcx_riscmem bottom;
145 struct v4l2_rect crop;
146 unsigned int vbi_skip[2];
147 unsigned int vbi_count[2];
150 struct bttv_buffer_set {
151 struct bttv_buffer *top; /* top field buffer */
152 struct bttv_buffer *bottom; /* bottom field buffer */
153 unsigned int top_irq;
154 unsigned int frame_irq;
157 struct bttv_overlay {
160 enum v4l2_field field;
161 struct v4l2_clip *clips;
166 struct bttv_vbi_fmt {
167 struct v4l2_vbi_format fmt;
169 /* fmt.start[] and count[] refer to this video standard. */
170 const struct bttv_tvnorm *tvnorm;
172 /* Earliest possible start of video capturing with this
173 v4l2_vbi_format, in struct bttv_crop.rect units. */
178 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, int norm);
181 /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
182 struct v4l2_rect rect;
184 /* Scaled image size limits with this crop rect. Divide
185 max_height, but not min_height, by two when capturing
186 single fields. See also bttv_crop_reset() and
187 bttv_crop_adjust() in bttv-driver.c. */
188 __s32 min_scaled_width;
189 __s32 min_scaled_height;
190 __s32 max_scaled_width;
191 __s32 max_scaled_height;
197 #ifdef VIDIOC_G_PRIORITY
198 enum v4l2_priority prio;
200 enum v4l2_buf_type type;
203 struct videobuf_queue cap;
204 const struct bttv_format *fmt;
209 const struct bttv_format *ovfmt;
210 struct bttv_overlay ov;
212 /* Application called VIDIOC_S_CROP. */
216 struct videobuf_queue vbi;
217 /* Current VBI capture window as seen through this fh (cannot
218 be global for compatibility with earlier drivers). Protected
219 by struct bttv.lock and struct bttv_fh.vbi.lock. */
220 struct bttv_vbi_fmt vbi_fmt;
223 /* ---------------------------------------------------------- */
226 /* risc code generators - capture */
227 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
228 struct scatterlist *sglist,
229 unsigned int offset, unsigned int bpl,
230 unsigned int pitch, unsigned int skip_lines,
231 unsigned int store_lines);
233 /* control dma register + risc main loop */
234 void bttv_set_dma(struct bttv *btv, int override);
235 int bttv_risc_init_main(struct bttv *btv);
236 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
239 /* capture buffer handling */
240 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
241 int bttv_buffer_activate_video(struct bttv *btv,
242 struct bttv_buffer_set *set);
243 int bttv_buffer_activate_vbi(struct bttv *btv,
244 struct bttv_buffer *vbi);
245 void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
246 struct bttv_buffer *buf);
248 /* overlay handling */
249 int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
250 const struct bttv_format *fmt,
251 struct bttv_buffer *buf);
254 /* ---------------------------------------------------------- */
257 int bttv_try_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
258 int bttv_g_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
259 int bttv_s_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
261 extern struct videobuf_queue_ops bttv_vbi_qops;
263 /* ---------------------------------------------------------- */
267 extern struct bus_type bttv_sub_bus_type;
268 int bttv_sub_add_device(struct bttv_core *core, char *name);
269 int bttv_sub_del_devices(struct bttv_core *core);
272 /* ---------------------------------------------------------- */
276 extern unsigned int bttv_verbose;
277 extern unsigned int bttv_debug;
278 extern unsigned int bttv_gpio;
279 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
280 extern int init_bttv_i2c(struct bttv *btv);
281 extern int fini_bttv_i2c(struct bttv *btv);
283 #define bttv_printk if (bttv_verbose) printk
284 #define dprintk if (bttv_debug >= 1) printk
285 #define d2printk if (bttv_debug >= 2) printk
287 #define BTTV_MAX_FBUF 0x208000
288 #define BTTV_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
289 #define BTTV_FREE_IDLE msecs_to_jiffies(1000) /* one second */
292 struct bttv_pll_info {
293 unsigned int pll_ifreq; /* PLL input frequency */
294 unsigned int pll_ofreq; /* PLL output frequency */
295 unsigned int pll_crystal; /* Crystal used for input */
296 unsigned int pll_current; /* Currently programmed ofreq */
299 /* for gpio-connected remote control */
301 struct input_dev *dev;
302 struct ir_input_state ir;
309 struct bttv_suspend_state {
314 struct bttv_buffer_set video;
315 struct bttv_buffer *vbi;
321 /* pci device config */
323 unsigned char revision;
324 unsigned char __iomem *bt848_mmio; /* pointer to mmio */
326 /* card configuration info */
327 unsigned int cardid; /* pci subsystem id (bt878 based ones) */
328 unsigned int tuner_type; /* tuner chip type */
329 unsigned int tda9887_conf;
331 struct bttv_pll_info pll;
334 int (*custom_irq)(struct bttv *btv);
338 /* old gpio interface */
339 wait_queue_head_t gpioq;
342 void (*volume_gpio)(struct bttv *btv, __u16 volume);
343 void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
345 /* new gpio interface */
346 spinlock_t gpio_lock;
349 struct i2c_algo_bit_data i2c_algo;
350 struct i2c_client i2c_client;
351 int i2c_state, i2c_rc;
353 wait_queue_head_t i2c_queue;
354 struct i2c_client *i2c_msp34xx_client;
355 struct i2c_client *i2c_tvaudio_client;
357 /* video4linux (1) */
358 struct video_device *video_dev;
359 struct video_device *radio_dev;
360 struct video_device *vbi_dev;
362 /* infrared remote */
364 struct card_ir *remote;
370 #ifdef VIDIOC_G_PRIORITY
371 struct v4l2_prio_state prio;
379 int tvnorm,hue,contrast,bright,saturation;
380 struct v4l2_framebuffer fbuf;
381 unsigned int field_count;
383 /* various options */
390 int opt_whitecrush_upper;
391 int opt_whitecrush_lower;
393 int opt_full_luma_range;
396 /* radio data/state */
400 /* miro/pinnacle + Aimslab VHX
401 philips matchbox (tea5757 radio tuner) support */
409 /* ISA stuff (Terratec Active Radio Upgrade) */
414 /* risc memory management data
415 - must acquire s_lock before changing these
416 - only the irq handler is supported to touch top + bottom + vcurr */
417 struct btcx_riscmem main;
418 struct bttv_buffer *screen; /* overlay */
419 struct list_head capture; /* video capture queue */
420 struct list_head vcapture; /* vbi capture queue */
421 struct bttv_buffer_set curr; /* active buffers */
422 struct bttv_buffer *cvbi; /* active vbi buffer */
426 unsigned long cap_ctl;
427 unsigned long dma_on;
428 struct timer_list timeout;
429 struct bttv_suspend_state state;
433 unsigned int framedrop;
434 unsigned int irq_total;
440 /* used to make dvb-bt8xx autoloadable */
441 struct work_struct request_module_wk;
443 /* Default (0) and current (1) video capturing and overlay
444 cropping parameters in bttv_tvnorm.cropcap units. Protected
446 struct bttv_crop crop[2];
448 /* Earliest possible start of video capturing in
449 bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
450 and free_btres(). Protected by bttv.lock. */
453 /* Latest possible end of VBI capturing (= crop[x].rect.top when
454 VIDEO_RESOURCES are locked). Set by check_alloc_btres()
455 and free_btres(). Protected by bttv.lock. */
461 extern unsigned int bttv_num;
462 extern struct bttv bttvs[BTTV_MAX];
466 #define btwrite(dat,adr) writel((dat), btv->bt848_mmio+(adr))
467 #define btread(adr) readl(btv->bt848_mmio+(adr))
469 #define btand(dat,adr) btwrite((dat) & btread(adr), adr)
470 #define btor(dat,adr) btwrite((dat) | btread(adr), adr)
471 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
473 #endif /* _BTTVP_H_ */