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)
87 /* ---------------------------------------------------------- */
93 u16 swidth, sheight; /* scaled standard width, height */
95 u8 adelay, bdelay, iform;
97 u16 hdelayx1, hactivex1;
102 /* ITU-R frame line number of the first VBI line we can
103 capture, of the first and second field. The last possible line
104 is determined by cropcap.bounds. */
106 /* Horizontally this counts fCLKx1 samples following the leading
107 edge of the horizontal sync pulse, vertically ITU-R frame line
108 numbers of the first field times two (2, 4, 6, ... 524 or 624). */
109 struct v4l2_cropcap cropcap;
111 extern const struct bttv_tvnorm bttv_tvnorms[];
115 int fourcc; /* video4linux 2 */
116 int btformat; /* BT848_COLOR_FMT_* */
117 int btswap; /* BT848_COLOR_CTL_* */
118 int depth; /* bit/pixel */
120 int hshift,vshift; /* for planar modes */
123 /* ---------------------------------------------------------- */
125 struct bttv_geometry {
127 u16 width,hscale,hdelay;
128 u16 sheight,vscale,vdelay,vtotal;
132 /* common v4l buffer stuff -- must be first */
133 struct videobuf_buffer vb;
136 const struct bttv_format *fmt;
140 struct bttv_geometry geo;
141 struct btcx_riscmem top;
142 struct btcx_riscmem bottom;
143 struct v4l2_rect crop;
144 unsigned int vbi_skip[2];
145 unsigned int vbi_count[2];
148 struct bttv_buffer_set {
149 struct bttv_buffer *top; /* top field buffer */
150 struct bttv_buffer *bottom; /* bottom field buffer */
151 unsigned int top_irq;
152 unsigned int frame_irq;
155 struct bttv_overlay {
158 enum v4l2_field field;
159 struct v4l2_clip *clips;
164 struct bttv_vbi_fmt {
165 struct v4l2_vbi_format fmt;
167 /* fmt.start[] and count[] refer to this video standard. */
168 const struct bttv_tvnorm *tvnorm;
170 /* Earliest possible start of video capturing with this
171 v4l2_vbi_format, in struct bttv_crop.rect units. */
176 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, int norm);
179 /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
180 struct v4l2_rect rect;
182 /* Scaled image size limits with this crop rect. Divide
183 max_height, but not min_height, by two when capturing
184 single fields. See also bttv_crop_reset() and
185 bttv_crop_adjust() in bttv-driver.c. */
186 __s32 min_scaled_width;
187 __s32 min_scaled_height;
188 __s32 max_scaled_width;
189 __s32 max_scaled_height;
195 #ifdef VIDIOC_G_PRIORITY
196 enum v4l2_priority prio;
198 enum v4l2_buf_type type;
201 struct videobuf_queue cap;
202 const struct bttv_format *fmt;
207 const struct bttv_format *ovfmt;
208 struct bttv_overlay ov;
210 /* Application called VIDIOC_S_CROP. */
214 struct videobuf_queue vbi;
215 /* Current VBI capture window as seen through this fh (cannot
216 be global for compatibility with earlier drivers). Protected
217 by struct bttv.lock and struct bttv_fh.vbi.lock. */
218 struct bttv_vbi_fmt vbi_fmt;
221 /* ---------------------------------------------------------- */
224 /* risc code generators - capture */
225 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
226 struct scatterlist *sglist,
227 unsigned int offset, unsigned int bpl,
228 unsigned int pitch, unsigned int skip_lines,
229 unsigned int store_lines);
231 /* control dma register + risc main loop */
232 void bttv_set_dma(struct bttv *btv, int override);
233 int bttv_risc_init_main(struct bttv *btv);
234 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
237 /* capture buffer handling */
238 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
239 int bttv_buffer_activate_video(struct bttv *btv,
240 struct bttv_buffer_set *set);
241 int bttv_buffer_activate_vbi(struct bttv *btv,
242 struct bttv_buffer *vbi);
243 void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
244 struct bttv_buffer *buf);
246 /* overlay handling */
247 int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
248 const struct bttv_format *fmt,
249 struct bttv_buffer *buf);
252 /* ---------------------------------------------------------- */
255 int bttv_vbi_try_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f);
256 void bttv_vbi_get_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f);
257 int bttv_vbi_set_fmt(struct bttv_fh *fh, struct v4l2_vbi_format *f);
259 extern struct videobuf_queue_ops bttv_vbi_qops;
261 /* ---------------------------------------------------------- */
265 extern struct bus_type bttv_sub_bus_type;
266 int bttv_sub_add_device(struct bttv_core *core, char *name);
267 int bttv_sub_del_devices(struct bttv_core *core);
270 /* ---------------------------------------------------------- */
274 extern unsigned int bttv_verbose;
275 extern unsigned int bttv_debug;
276 extern unsigned int bttv_gpio;
277 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
278 extern int init_bttv_i2c(struct bttv *btv);
279 extern int fini_bttv_i2c(struct bttv *btv);
281 #define bttv_printk if (bttv_verbose) printk
282 #define dprintk if (bttv_debug >= 1) printk
283 #define d2printk if (bttv_debug >= 2) printk
285 #define BTTV_MAX_FBUF 0x208000
286 #define BTTV_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
287 #define BTTV_FREE_IDLE msecs_to_jiffies(1000) /* one second */
290 struct bttv_pll_info {
291 unsigned int pll_ifreq; /* PLL input frequency */
292 unsigned int pll_ofreq; /* PLL output frequency */
293 unsigned int pll_crystal; /* Crystal used for input */
294 unsigned int pll_current; /* Currently programmed ofreq */
297 /* for gpio-connected remote control */
299 struct input_dev *dev;
300 struct ir_input_state ir;
307 struct bttv_suspend_state {
312 struct bttv_buffer_set video;
313 struct bttv_buffer *vbi;
319 /* pci device config */
321 unsigned char revision;
322 unsigned char __iomem *bt848_mmio; /* pointer to mmio */
324 /* card configuration info */
325 unsigned int cardid; /* pci subsystem id (bt878 based ones) */
326 unsigned int tuner_type; /* tuner chip type */
327 unsigned int tda9887_conf;
329 struct bttv_pll_info pll;
332 int (*custom_irq)(struct bttv *btv);
336 /* old gpio interface */
337 wait_queue_head_t gpioq;
340 void (*volume_gpio)(struct bttv *btv, __u16 volume);
341 void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
343 /* new gpio interface */
344 spinlock_t gpio_lock;
347 struct i2c_algo_bit_data i2c_algo;
348 struct i2c_client i2c_client;
349 int i2c_state, i2c_rc;
351 wait_queue_head_t i2c_queue;
352 struct i2c_client *i2c_msp34xx_client;
353 struct i2c_client *i2c_tvaudio_client;
355 /* video4linux (1) */
356 struct video_device *video_dev;
357 struct video_device *radio_dev;
358 struct video_device *vbi_dev;
360 /* infrared remote */
362 struct card_ir *remote;
368 #ifdef VIDIOC_G_PRIORITY
369 struct v4l2_prio_state prio;
377 int tvnorm,hue,contrast,bright,saturation;
378 struct v4l2_framebuffer fbuf;
379 unsigned int field_count;
381 /* various options */
388 int opt_whitecrush_upper;
389 int opt_whitecrush_lower;
391 int opt_full_luma_range;
394 /* radio data/state */
398 /* miro/pinnacle + Aimslab VHX
399 philips matchbox (tea5757 radio tuner) support */
407 /* ISA stuff (Terratec Active Radio Upgrade) */
412 /* risc memory management data
413 - must acquire s_lock before changing these
414 - only the irq handler is supported to touch top + bottom + vcurr */
415 struct btcx_riscmem main;
416 struct bttv_buffer *screen; /* overlay */
417 struct list_head capture; /* video capture queue */
418 struct list_head vcapture; /* vbi capture queue */
419 struct bttv_buffer_set curr; /* active buffers */
420 struct bttv_buffer *cvbi; /* active vbi buffer */
424 unsigned long cap_ctl;
425 unsigned long dma_on;
426 struct timer_list timeout;
427 struct bttv_suspend_state state;
431 unsigned int framedrop;
432 unsigned int irq_total;
438 /* used to make dvb-bt8xx autoloadable */
439 struct work_struct request_module_wk;
441 /* Default (0) and current (1) video capturing and overlay
442 cropping parameters in bttv_tvnorm.cropcap units. Protected
444 struct bttv_crop crop[2];
446 /* Earliest possible start of video capturing in
447 bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
448 and free_btres(). Protected by bttv.lock. */
451 /* Latest possible end of VBI capturing (= crop[x].rect.top when
452 VIDEO_RESOURCES are locked). Set by check_alloc_btres()
453 and free_btres(). Protected by bttv.lock. */
459 extern unsigned int bttv_num;
460 extern struct bttv bttvs[BTTV_MAX];
464 #define btwrite(dat,adr) writel((dat), btv->bt848_mmio+(adr))
465 #define btread(adr) readl(btv->bt848_mmio+(adr))
467 #define btand(dat,adr) btwrite((dat) & btread(adr), adr)
468 #define btor(dat,adr) btwrite((dat) | btread(adr), adr)
469 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
471 #endif /* _BTTVP_H_ */