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)
84 #define clamp(x, low, high) min (max (low, x), high)
87 V4L2_STD_PAL | V4L2_STD_PAL_N | \
88 V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
89 V4L2_STD_NTSC | V4L2_STD_PAL_M | \
91 /* ---------------------------------------------------------- */
97 u16 swidth, sheight; /* scaled standard width, height */
99 u8 adelay, bdelay, iform;
101 u16 hdelayx1, hactivex1;
106 /* ITU-R frame line number of the first VBI line we can
107 capture, of the first and second field. The last possible line
108 is determined by cropcap.bounds. */
110 /* Horizontally this counts fCLKx1 samples following the leading
111 edge of the horizontal sync pulse, vertically ITU-R frame line
112 numbers of the first field times two (2, 4, 6, ... 524 or 624). */
113 struct v4l2_cropcap cropcap;
115 extern const struct bttv_tvnorm bttv_tvnorms[];
119 int fourcc; /* video4linux 2 */
120 int btformat; /* BT848_COLOR_FMT_* */
121 int btswap; /* BT848_COLOR_CTL_* */
122 int depth; /* bit/pixel */
124 int hshift,vshift; /* for planar modes */
127 /* ---------------------------------------------------------- */
129 struct bttv_geometry {
131 u16 width,hscale,hdelay;
132 u16 sheight,vscale,vdelay,vtotal;
136 /* common v4l buffer stuff -- must be first */
137 struct videobuf_buffer vb;
140 const struct bttv_format *fmt;
144 struct bttv_geometry geo;
145 struct btcx_riscmem top;
146 struct btcx_riscmem bottom;
147 struct v4l2_rect crop;
148 unsigned int vbi_skip[2];
149 unsigned int vbi_count[2];
152 struct bttv_buffer_set {
153 struct bttv_buffer *top; /* top field buffer */
154 struct bttv_buffer *bottom; /* bottom field buffer */
155 unsigned int top_irq;
156 unsigned int frame_irq;
159 struct bttv_overlay {
162 enum v4l2_field field;
163 struct v4l2_clip *clips;
168 struct bttv_vbi_fmt {
169 struct v4l2_vbi_format fmt;
171 /* fmt.start[] and count[] refer to this video standard. */
172 const struct bttv_tvnorm *tvnorm;
174 /* Earliest possible start of video capturing with this
175 v4l2_vbi_format, in struct bttv_crop.rect units. */
180 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, int norm);
183 /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
184 struct v4l2_rect rect;
186 /* Scaled image size limits with this crop rect. Divide
187 max_height, but not min_height, by two when capturing
188 single fields. See also bttv_crop_reset() and
189 bttv_crop_adjust() in bttv-driver.c. */
190 __s32 min_scaled_width;
191 __s32 min_scaled_height;
192 __s32 max_scaled_width;
193 __s32 max_scaled_height;
199 #ifdef VIDIOC_G_PRIORITY
200 enum v4l2_priority prio;
202 enum v4l2_buf_type type;
205 struct videobuf_queue cap;
206 const struct bttv_format *fmt;
211 const struct bttv_format *ovfmt;
212 struct bttv_overlay ov;
214 /* Application called VIDIOC_S_CROP. */
218 struct videobuf_queue vbi;
219 /* Current VBI capture window as seen through this fh (cannot
220 be global for compatibility with earlier drivers). Protected
221 by struct bttv.lock and struct bttv_fh.vbi.lock. */
222 struct bttv_vbi_fmt vbi_fmt;
225 /* ---------------------------------------------------------- */
228 /* risc code generators - capture */
229 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
230 struct scatterlist *sglist,
231 unsigned int offset, unsigned int bpl,
232 unsigned int pitch, unsigned int skip_lines,
233 unsigned int store_lines);
235 /* control dma register + risc main loop */
236 void bttv_set_dma(struct bttv *btv, int override);
237 int bttv_risc_init_main(struct bttv *btv);
238 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
241 /* capture buffer handling */
242 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
243 int bttv_buffer_activate_video(struct bttv *btv,
244 struct bttv_buffer_set *set);
245 int bttv_buffer_activate_vbi(struct bttv *btv,
246 struct bttv_buffer *vbi);
247 void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
248 struct bttv_buffer *buf);
250 /* overlay handling */
251 int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
252 const struct bttv_format *fmt,
253 struct bttv_buffer *buf);
256 /* ---------------------------------------------------------- */
259 int bttv_try_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
260 int bttv_g_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
261 int bttv_s_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
263 extern struct videobuf_queue_ops bttv_vbi_qops;
265 /* ---------------------------------------------------------- */
269 extern struct bus_type bttv_sub_bus_type;
270 int bttv_sub_add_device(struct bttv_core *core, char *name);
271 int bttv_sub_del_devices(struct bttv_core *core);
274 /* ---------------------------------------------------------- */
278 extern unsigned int bttv_verbose;
279 extern unsigned int bttv_debug;
280 extern unsigned int bttv_gpio;
281 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
282 extern int init_bttv_i2c(struct bttv *btv);
283 extern int fini_bttv_i2c(struct bttv *btv);
285 #define bttv_printk if (bttv_verbose) printk
286 #define dprintk if (bttv_debug >= 1) printk
287 #define d2printk if (bttv_debug >= 2) printk
289 #define BTTV_MAX_FBUF 0x208000
290 #define BTTV_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
291 #define BTTV_FREE_IDLE msecs_to_jiffies(1000) /* one second */
294 struct bttv_pll_info {
295 unsigned int pll_ifreq; /* PLL input frequency */
296 unsigned int pll_ofreq; /* PLL output frequency */
297 unsigned int pll_crystal; /* Crystal used for input */
298 unsigned int pll_current; /* Currently programmed ofreq */
301 /* for gpio-connected remote control */
303 struct input_dev *dev;
304 struct ir_input_state ir;
311 struct bttv_suspend_state {
316 struct bttv_buffer_set video;
317 struct bttv_buffer *vbi;
323 /* pci device config */
325 unsigned char revision;
326 unsigned char __iomem *bt848_mmio; /* pointer to mmio */
328 /* card configuration info */
329 unsigned int cardid; /* pci subsystem id (bt878 based ones) */
330 unsigned int tuner_type; /* tuner chip type */
331 unsigned int tda9887_conf;
333 struct bttv_pll_info pll;
336 int (*custom_irq)(struct bttv *btv);
340 /* old gpio interface */
341 wait_queue_head_t gpioq;
344 void (*volume_gpio)(struct bttv *btv, __u16 volume);
345 void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
347 /* new gpio interface */
348 spinlock_t gpio_lock;
351 struct i2c_algo_bit_data i2c_algo;
352 struct i2c_client i2c_client;
353 int i2c_state, i2c_rc;
355 wait_queue_head_t i2c_queue;
356 struct i2c_client *i2c_msp34xx_client;
357 struct i2c_client *i2c_tvaudio_client;
359 /* video4linux (1) */
360 struct video_device *video_dev;
361 struct video_device *radio_dev;
362 struct video_device *vbi_dev;
364 /* infrared remote */
366 struct card_ir *remote;
372 #ifdef VIDIOC_G_PRIORITY
373 struct v4l2_prio_state prio;
381 int tvnorm,hue,contrast,bright,saturation;
382 struct v4l2_framebuffer fbuf;
383 unsigned int field_count;
385 /* various options */
392 int opt_whitecrush_upper;
393 int opt_whitecrush_lower;
395 int opt_full_luma_range;
398 /* radio data/state */
402 /* miro/pinnacle + Aimslab VHX
403 philips matchbox (tea5757 radio tuner) support */
411 /* ISA stuff (Terratec Active Radio Upgrade) */
416 /* risc memory management data
417 - must acquire s_lock before changing these
418 - only the irq handler is supported to touch top + bottom + vcurr */
419 struct btcx_riscmem main;
420 struct bttv_buffer *screen; /* overlay */
421 struct list_head capture; /* video capture queue */
422 struct list_head vcapture; /* vbi capture queue */
423 struct bttv_buffer_set curr; /* active buffers */
424 struct bttv_buffer *cvbi; /* active vbi buffer */
428 unsigned long cap_ctl;
429 unsigned long dma_on;
430 struct timer_list timeout;
431 struct bttv_suspend_state state;
435 unsigned int framedrop;
436 unsigned int irq_total;
442 /* used to make dvb-bt8xx autoloadable */
443 struct work_struct request_module_wk;
445 /* Default (0) and current (1) video capturing and overlay
446 cropping parameters in bttv_tvnorm.cropcap units. Protected
448 struct bttv_crop crop[2];
450 /* Earliest possible start of video capturing in
451 bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
452 and free_btres(). Protected by bttv.lock. */
455 /* Latest possible end of VBI capturing (= crop[x].rect.top when
456 VIDEO_RESOURCES are locked). Set by check_alloc_btres()
457 and free_btres(). Protected by bttv.lock. */
463 extern unsigned int bttv_num;
464 extern struct bttv bttvs[BTTV_MAX];
468 #define btwrite(dat,adr) writel((dat), btv->bt848_mmio+(adr))
469 #define btread(adr) readl(btv->bt848_mmio+(adr))
471 #define btand(dat,adr) btwrite((dat) & btread(adr), adr)
472 #define btor(dat,adr) btwrite((dat) | btread(adr), adr)
473 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
475 #endif /* _BTTVP_H_ */