1 /*
2 * zoran - Iomega Buz driver
3 *
4 * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
5 *
6 * based on
7 *
8 * zoran.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net>
9 *
10 * and
11 *
12 * bttv - Bt848 frame grabber driver
13 * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
14 * & Marcus Metzler (mocm@thp.uni-koeln.de)
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 */
26
27 #ifndef _BUZ_H_
28 #define _BUZ_H_
29
30 #include <media/v4l2-device.h>
31 #include <media/v4l2-ctrls.h>
32 #include <media/v4l2-fh.h>
33
34 struct zoran_sync {
35 unsigned long frame; /* number of buffer that has been free'd */
36 unsigned long length; /* number of code bytes in buffer (capture only) */
37 unsigned long seq; /* frame sequence number */
38 struct timeval timestamp; /* timestamp */
39 };
40
41
42 #define ZORAN_NAME "ZORAN" /* name of the device */
43
44 #define ZR_DEVNAME(zr) ((zr)->name)
45
46 #define BUZ_MAX_WIDTH (zr->timing->Wa)
47 #define BUZ_MAX_HEIGHT (zr->timing->Ha)
48 #define BUZ_MIN_WIDTH 32 /* never display less than 32 pixels */
49 #define BUZ_MIN_HEIGHT 24 /* never display less than 24 rows */
50
51 #define BUZ_NUM_STAT_COM 4
52 #define BUZ_MASK_STAT_COM 3
53
54 #define BUZ_MAX_FRAME 256 /* Must be a power of 2 */
55 #define BUZ_MASK_FRAME 255 /* Must be BUZ_MAX_FRAME-1 */
56
57 #define BUZ_MAX_INPUT 16
58
59 #if VIDEO_MAX_FRAME <= 32
60 # define V4L_MAX_FRAME 32
61 #elif VIDEO_MAX_FRAME <= 64
62 # define V4L_MAX_FRAME 64
63 #else
64 # error "Too many video frame buffers to handle"
65 #endif
66 #define V4L_MASK_FRAME (V4L_MAX_FRAME - 1)
67
68 #define MAX_FRAME (BUZ_MAX_FRAME > VIDEO_MAX_FRAME ? BUZ_MAX_FRAME : VIDEO_MAX_FRAME)
69
70 #include "zr36057.h"
71
72 enum card_type {
73 UNKNOWN = -1,
74
75 /* Pinnacle/Miro */
76 DC10_old, /* DC30 like */
77 DC10_new, /* DC10plus like */
78 DC10plus,
79 DC30,
80 DC30plus,
81
82 /* Linux Media Labs */
83 LML33,
84 LML33R10,
85
86 /* Iomega */
87 BUZ,
88
89 /* AverMedia */
90 AVS6EYES,
91
92 /* total number of cards */
93 NUM_CARDS
94 };
95
96 enum zoran_codec_mode {
97 BUZ_MODE_IDLE, /* nothing going on */
98 BUZ_MODE_MOTION_COMPRESS, /* grabbing frames */
99 BUZ_MODE_MOTION_DECOMPRESS, /* playing frames */
100 BUZ_MODE_STILL_COMPRESS, /* still frame conversion */
101 BUZ_MODE_STILL_DECOMPRESS /* still frame conversion */
102 };
103
104 enum zoran_buffer_state {
105 BUZ_STATE_USER, /* buffer is owned by application */
106 BUZ_STATE_PEND, /* buffer is queued in pend[] ready to feed to I/O */
107 BUZ_STATE_DMA, /* buffer is queued in dma[] for I/O */
108 BUZ_STATE_DONE /* buffer is ready to return to application */
109 };
110
111 enum zoran_map_mode {
112 ZORAN_MAP_MODE_RAW,
113 ZORAN_MAP_MODE_JPG_REC,
114 #define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC
115 ZORAN_MAP_MODE_JPG_PLAY,
116 };
117
118 enum gpio_type {
119 ZR_GPIO_JPEG_SLEEP = 0,
120 ZR_GPIO_JPEG_RESET,
121 ZR_GPIO_JPEG_FRAME,
122 ZR_GPIO_VID_DIR,
123 ZR_GPIO_VID_EN,
124 ZR_GPIO_VID_RESET,
125 ZR_GPIO_CLK_SEL1,
126 ZR_GPIO_CLK_SEL2,
127 ZR_GPIO_MAX,
128 };
129
130 enum gpcs_type {
131 GPCS_JPEG_RESET = 0,
132 GPCS_JPEG_START,
133 GPCS_MAX,
134 };
135
136 struct zoran_format {
137 char *name;
138 __u32 fourcc;
139 int colorspace;
140 int depth;
141 __u32 flags;
142 __u32 vfespfr;
143 };
144 /* flags */
145 #define ZORAN_FORMAT_COMPRESSED 1<<0
146 #define ZORAN_FORMAT_OVERLAY 1<<1
147 #define ZORAN_FORMAT_CAPTURE 1<<2
148 #define ZORAN_FORMAT_PLAYBACK 1<<3
149
150 /* overlay-settings */
151 struct zoran_overlay_settings {
152 int is_set;
153 int x, y, width, height; /* position */
154 int clipcount; /* position and number of clips */
155 const struct zoran_format *format; /* overlay format */
156 };
157
158 /* v4l-capture settings */
159 struct zoran_v4l_settings {
160 int width, height, bytesperline; /* capture size */
161 const struct zoran_format *format; /* capture format */
162 };
163
164 /* jpg-capture/-playback settings */
165 struct zoran_jpg_settings {
166 int decimation; /* this bit is used to set everything to default */
167 int HorDcm, VerDcm, TmpDcm; /* capture decimation settings (TmpDcm=1 means both fields) */
168 int field_per_buff, odd_even; /* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */
169 int img_x, img_y, img_width, img_height; /* crop settings (subframe capture) */
170 struct v4l2_jpegcompression jpg_comp; /* JPEG-specific capture settings */
171 };
172
173 struct zoran_fh;
174
175 struct zoran_mapping {
176 struct zoran_fh *fh;
177 atomic_t count;
178 };
179
180 struct zoran_buffer {
181 struct zoran_mapping *map;
182 enum zoran_buffer_state state; /* state: unused/pending/dma/done */
183 struct zoran_sync bs; /* DONE: info to return to application */
184 union {
185 struct {
186 __le32 *frag_tab; /* addresses of frag table */
187 u32 frag_tab_bus; /* same value cached to save time in ISR */
188 } jpg;
189 struct {
190 char *fbuffer; /* virtual address of frame buffer */
191 unsigned long fbuffer_phys;/* physical address of frame buffer */
192 unsigned long fbuffer_bus;/* bus address of frame buffer */
193 } v4l;
194 };
195 };
196
197 enum zoran_lock_activity {
198 ZORAN_FREE, /* free for use */
199 ZORAN_ACTIVE, /* active but unlocked */
200 ZORAN_LOCKED, /* locked */
201 };
202
203 /* buffer collections */
204 struct zoran_buffer_col {
205 enum zoran_lock_activity active; /* feature currently in use? */
206 unsigned int num_buffers, buffer_size;
207 struct zoran_buffer buffer[MAX_FRAME]; /* buffers */
208 u8 allocated; /* Flag if buffers are allocated */
209 u8 need_contiguous; /* Flag if contiguous buffers are needed */
210 /* only applies to jpg buffers, raw buffers are always contiguous */
211 };
212
213 struct zoran;
214
215 /* zoran_fh contains per-open() settings */
216 struct zoran_fh {
217 struct v4l2_fh fh;
218 struct zoran *zr;
219
220 enum zoran_map_mode map_mode; /* Flag which bufferset will map by next mmap() */
221
222 struct zoran_overlay_settings overlay_settings;
223 u32 *overlay_mask; /* overlay mask */
224 enum zoran_lock_activity overlay_active;/* feature currently in use? */
225
226 struct zoran_buffer_col buffers; /* buffers' info */
227
228 struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
229 struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
230 };
231
232 struct card_info {
233 enum card_type type;
234 char name[32];
235 const char *i2c_decoder; /* i2c decoder device */
236 const unsigned short *addrs_decoder;
237 const char *i2c_encoder; /* i2c encoder device */
238 const unsigned short *addrs_encoder;
239 u16 video_vfe, video_codec; /* videocodec types */
240 u16 audio_chip; /* audio type */
241
242 int inputs; /* number of video inputs */
243 struct input {
244 int muxsel;
245 char name[32];
246 } input[BUZ_MAX_INPUT];
247
248 v4l2_std_id norms;
249 struct tvnorm *tvn[3]; /* supported TV norms */
250
251 u32 jpeg_int; /* JPEG interrupt */
252 u32 vsync_int; /* VSYNC interrupt */
253 s8 gpio[ZR_GPIO_MAX];
254 u8 gpcs[GPCS_MAX];
255
256 struct vfe_polarity vfe_pol;
257 u8 gpio_pol[ZR_GPIO_MAX];
258
259 /* is the /GWS line connected? */
260 u8 gws_not_connected;
261
262 /* avs6eyes mux setting */
263 u8 input_mux;
264
265 void (*init) (struct zoran * zr);
266 };
267
268 struct zoran {
269 struct v4l2_device v4l2_dev;
270 struct v4l2_ctrl_handler hdl;
271 struct video_device *video_dev;
272
273 struct i2c_adapter i2c_adapter; /* */
274 struct i2c_algo_bit_data i2c_algo; /* */
275 u32 i2cbr;
276
277 struct v4l2_subdev *decoder; /* video decoder sub-device */
278 struct v4l2_subdev *encoder; /* video encoder sub-device */
279
280 struct videocodec *codec; /* video codec */
281 struct videocodec *vfe; /* video front end */
282
283 struct mutex lock; /* file ops serialize lock */
284
285 u8 initialized; /* flag if zoran has been correctly initialized */
286 int user; /* number of current users */
287 struct card_info card;
288 struct tvnorm *timing;
289
290 unsigned short id; /* number of this device */
291 char name[32]; /* name of this device */
292 struct pci_dev *pci_dev; /* PCI device */
293 unsigned char revision; /* revision of zr36057 */
294 unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */
295
296 spinlock_t spinlock; /* Spinlock */
297
298 /* Video for Linux parameters */
299 int input; /* card's norm and input */
300 v4l2_std_id norm;
301
302 /* Current buffer params */
303 void *vbuf_base;
304 int vbuf_height, vbuf_width;
305 int vbuf_depth;
306 int vbuf_bytesperline;
307
308 struct zoran_overlay_settings overlay_settings;
309 u32 *overlay_mask; /* overlay mask */
310 enum zoran_lock_activity overlay_active; /* feature currently in use? */
311
312 wait_queue_head_t v4l_capq;
313
314 int v4l_overlay_active; /* Overlay grab is activated */
315 int v4l_memgrab_active; /* Memory grab is activated */
316
317 int v4l_grab_frame; /* Frame number being currently grabbed */
318 #define NO_GRAB_ACTIVE (-1)
319 unsigned long v4l_grab_seq; /* Number of frames grabbed */
320 struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
321
322 /* V4L grab queue of frames pending */
323 unsigned long v4l_pend_head;
324 unsigned long v4l_pend_tail;
325 unsigned long v4l_sync_tail;
326 int v4l_pend[V4L_MAX_FRAME];
327 struct zoran_buffer_col v4l_buffers; /* V4L buffers' info */
328
329 /* Buz MJPEG parameters */
330 enum zoran_codec_mode codec_mode; /* status of codec */
331 struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
332
333 wait_queue_head_t jpg_capq; /* wait here for grab to finish */
334
335 /* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
336 /* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
337 /* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
338 unsigned long jpg_que_head; /* Index where to put next buffer which is queued */
339 unsigned long jpg_dma_head; /* Index of next buffer which goes into stat_com */
340 unsigned long jpg_dma_tail; /* Index of last buffer in stat_com */
341 unsigned long jpg_que_tail; /* Index of last buffer in queue */
342 unsigned long jpg_seq_num; /* count of frames since grab/play started */
343 unsigned long jpg_err_seq; /* last seq_num before error */
344 unsigned long jpg_err_shift;
345 unsigned long jpg_queued_num; /* count of frames queued since grab/play started */
346
347 /* zr36057's code buffer table */
348 __le32 *stat_com; /* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */
349
350 /* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */
351 int jpg_pend[BUZ_MAX_FRAME];
352
353 /* array indexed by frame number */
354 struct zoran_buffer_col jpg_buffers; /* MJPEG buffers' info */
355
356 /* Additional stuff for testing */
357 #ifdef CONFIG_PROC_FS
358 struct proc_dir_entry *zoran_proc;
359 #else
360 void *zoran_proc;
361 #endif
362 int testing;
363 int jpeg_error;
364 int intr_counter_GIRQ1;
365 int intr_counter_GIRQ0;
366 int intr_counter_CodRepIRQ;
367 int intr_counter_JPEGRepIRQ;
368 int field_counter;
369 int IRQ1_in;
370 int IRQ1_out;
371 int JPEG_in;
372 int JPEG_out;
373 int JPEG_0;
374 int JPEG_1;
375 int END_event_missed;
376 int JPEG_missed;
377 int JPEG_error;
378 int num_errors;
379 int JPEG_max_missed;
380 int JPEG_min_missed;
381
382 u32 last_isr;
383 unsigned long frame_num;
384
385 wait_queue_head_t test_q;
386 };
387
to_zoran(struct v4l2_device * v4l2_dev)388 static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
389 {
390 return container_of(v4l2_dev, struct zoran, v4l2_dev);
391 }
392
393 /* There was something called _ALPHA_BUZ that used the PCI address instead of
394 * the kernel iomapped address for btread/btwrite. */
395 #define btwrite(dat,adr) writel((dat), zr->zr36057_mem+(adr))
396 #define btread(adr) readl(zr->zr36057_mem+(adr))
397
398 #define btand(dat,adr) btwrite((dat) & btread(adr), adr)
399 #define btor(dat,adr) btwrite((dat) | btread(adr), adr)
400 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
401
402 #endif
403
