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 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 */
30
31 #ifndef _BUZ_H_
32 #define _BUZ_H_
33
34 #include <media/v4l2-device.h>
35
36 struct zoran_sync {
37 unsigned long frame; /* number of buffer that has been free'd */
38 unsigned long length; /* number of code bytes in buffer (capture only) */
39 unsigned long seq; /* frame sequence number */
40 struct timeval timestamp; /* timestamp */
41 };
42
43
44 #define MAJOR_VERSION 0 /* driver major version */
45 #define MINOR_VERSION 10 /* driver minor version */
46 #define RELEASE_VERSION 0 /* release version */
47
48 #define ZORAN_NAME "ZORAN" /* name of the device */
49
50 #define ZR_DEVNAME(zr) ((zr)->name)
51
52 #define BUZ_MAX_WIDTH (zr->timing->Wa)
53 #define BUZ_MAX_HEIGHT (zr->timing->Ha)
54 #define BUZ_MIN_WIDTH 32 /* never display less than 32 pixels */
55 #define BUZ_MIN_HEIGHT 24 /* never display less than 24 rows */
56
57 #define BUZ_NUM_STAT_COM 4
58 #define BUZ_MASK_STAT_COM 3
59
60 #define BUZ_MAX_FRAME 256 /* Must be a power of 2 */
61 #define BUZ_MASK_FRAME 255 /* Must be BUZ_MAX_FRAME-1 */
62
63 #define BUZ_MAX_INPUT 16
64
65 #if VIDEO_MAX_FRAME <= 32
66 # define V4L_MAX_FRAME 32
67 #elif VIDEO_MAX_FRAME <= 64
68 # define V4L_MAX_FRAME 64
69 #else
70 # error "Too many video frame buffers to handle"
71 #endif
72 #define V4L_MASK_FRAME (V4L_MAX_FRAME - 1)
73
74 #define MAX_FRAME (BUZ_MAX_FRAME > VIDEO_MAX_FRAME ? BUZ_MAX_FRAME : VIDEO_MAX_FRAME)
75
76 #include "zr36057.h"
77
78 enum card_type {
79 UNKNOWN = -1,
80
81 /* Pinnacle/Miro */
82 DC10_old, /* DC30 like */
83 DC10_new, /* DC10plus like */
84 DC10plus,
85 DC30,
86 DC30plus,
87
88 /* Linux Media Labs */
89 LML33,
90 LML33R10,
91
92 /* Iomega */
93 BUZ,
94
95 /* AverMedia */
96 AVS6EYES,
97
98 /* total number of cards */
99 NUM_CARDS
100 };
101
102 enum zoran_codec_mode {
103 BUZ_MODE_IDLE, /* nothing going on */
104 BUZ_MODE_MOTION_COMPRESS, /* grabbing frames */
105 BUZ_MODE_MOTION_DECOMPRESS, /* playing frames */
106 BUZ_MODE_STILL_COMPRESS, /* still frame conversion */
107 BUZ_MODE_STILL_DECOMPRESS /* still frame conversion */
108 };
109
110 enum zoran_buffer_state {
111 BUZ_STATE_USER, /* buffer is owned by application */
112 BUZ_STATE_PEND, /* buffer is queued in pend[] ready to feed to I/O */
113 BUZ_STATE_DMA, /* buffer is queued in dma[] for I/O */
114 BUZ_STATE_DONE /* buffer is ready to return to application */
115 };
116
117 enum zoran_map_mode {
118 ZORAN_MAP_MODE_RAW,
119 ZORAN_MAP_MODE_JPG_REC,
120 #define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC
121 ZORAN_MAP_MODE_JPG_PLAY,
122 };
123
124 enum gpio_type {
125 ZR_GPIO_JPEG_SLEEP = 0,
126 ZR_GPIO_JPEG_RESET,
127 ZR_GPIO_JPEG_FRAME,
128 ZR_GPIO_VID_DIR,
129 ZR_GPIO_VID_EN,
130 ZR_GPIO_VID_RESET,
131 ZR_GPIO_CLK_SEL1,
132 ZR_GPIO_CLK_SEL2,
133 ZR_GPIO_MAX,
134 };
135
136 enum gpcs_type {
137 GPCS_JPEG_RESET = 0,
138 GPCS_JPEG_START,
139 GPCS_MAX,
140 };
141
142 struct zoran_format {
143 char *name;
144 __u32 fourcc;
145 int colorspace;
146 int depth;
147 __u32 flags;
148 __u32 vfespfr;
149 };
150 /* flags */
151 #define ZORAN_FORMAT_COMPRESSED 1<<0
152 #define ZORAN_FORMAT_OVERLAY 1<<1
153 #define ZORAN_FORMAT_CAPTURE 1<<2
154 #define ZORAN_FORMAT_PLAYBACK 1<<3
155
156 /* overlay-settings */
157 struct zoran_overlay_settings {
158 int is_set;
159 int x, y, width, height; /* position */
160 int clipcount; /* position and number of clips */
161 const struct zoran_format *format; /* overlay format */
162 };
163
164 /* v4l-capture settings */
165 struct zoran_v4l_settings {
166 int width, height, bytesperline; /* capture size */
167 const struct zoran_format *format; /* capture format */
168 };
169
170 /* jpg-capture/-playback settings */
171 struct zoran_jpg_settings {
172 int decimation; /* this bit is used to set everything to default */
173 int HorDcm, VerDcm, TmpDcm; /* capture decimation settings (TmpDcm=1 means both fields) */
174 int field_per_buff, odd_even; /* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */
175 int img_x, img_y, img_width, img_height; /* crop settings (subframe capture) */
176 struct v4l2_jpegcompression jpg_comp; /* JPEG-specific capture settings */
177 };
178
179 struct zoran_mapping {
180 struct file *file;
181 int count;
182 };
183
184 struct zoran_buffer {
185 struct zoran_mapping *map;
186 enum zoran_buffer_state state; /* state: unused/pending/dma/done */
187 struct zoran_sync bs; /* DONE: info to return to application */
188 union {
189 struct {
190 __le32 *frag_tab; /* addresses of frag table */
191 u32 frag_tab_bus; /* same value cached to save time in ISR */
192 } jpg;
193 struct {
194 char *fbuffer; /* virtual address of frame buffer */
195 unsigned long fbuffer_phys;/* physical address of frame buffer */
196 unsigned long fbuffer_bus;/* bus address of frame buffer */
197 } v4l;
198 };
199 };
200
201 enum zoran_lock_activity {
202 ZORAN_FREE, /* free for use */
203 ZORAN_ACTIVE, /* active but unlocked */
204 ZORAN_LOCKED, /* locked */
205 };
206
207 /* buffer collections */
208 struct zoran_buffer_col {
209 enum zoran_lock_activity active; /* feature currently in use? */
210 unsigned int num_buffers, buffer_size;
211 struct zoran_buffer buffer[MAX_FRAME]; /* buffers */
212 u8 allocated; /* Flag if buffers are allocated */
213 u8 need_contiguous; /* Flag if contiguous buffers are needed */
214 /* only applies to jpg buffers, raw buffers are always contiguous */
215 };
216
217 struct zoran;
218
219 /* zoran_fh contains per-open() settings */
220 struct zoran_fh {
221 struct zoran *zr;
222
223 enum zoran_map_mode map_mode; /* Flag which bufferset will map by next mmap() */
224
225 struct zoran_overlay_settings overlay_settings;
226 u32 *overlay_mask; /* overlay mask */
227 enum zoran_lock_activity overlay_active;/* feature currently in use? */
228
229 struct zoran_buffer_col buffers; /* buffers' info */
230
231 struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
232 struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
233 };
234
235 struct card_info {
236 enum card_type type;
237 char name[32];
238 const char *i2c_decoder; /* i2c decoder device */
239 const unsigned short *addrs_decoder;
240 const char *i2c_encoder; /* i2c encoder device */
241 const unsigned short *addrs_encoder;
242 u16 video_vfe, video_codec; /* videocodec types */
243 u16 audio_chip; /* audio type */
244
245 int inputs; /* number of video inputs */
246 struct input {
247 int muxsel;
248 char name[32];
249 } input[BUZ_MAX_INPUT];
250
251 v4l2_std_id norms;
252 struct tvnorm *tvn[3]; /* supported TV norms */
253
254 u32 jpeg_int; /* JPEG interrupt */
255 u32 vsync_int; /* VSYNC interrupt */
256 s8 gpio[ZR_GPIO_MAX];
257 u8 gpcs[GPCS_MAX];
258
259 struct vfe_polarity vfe_pol;
260 u8 gpio_pol[ZR_GPIO_MAX];
261
262 /* is the /GWS line connected? */
263 u8 gws_not_connected;
264
265 /* avs6eyes mux setting */
266 u8 input_mux;
267
268 void (*init) (struct zoran * zr);
269 };
270
271 struct zoran {
272 struct v4l2_device v4l2_dev;
273 struct video_device *video_dev;
274
275 struct i2c_adapter i2c_adapter; /* */
276 struct i2c_algo_bit_data i2c_algo; /* */
277 u32 i2cbr;
278
279 struct v4l2_subdev *decoder; /* video decoder sub-device */
280 struct v4l2_subdev *encoder; /* video encoder sub-device */
281
282 struct videocodec *codec; /* video codec */
283 struct videocodec *vfe; /* video front end */
284
285 struct mutex resource_lock; /* prevent evil stuff */
286 struct mutex other_lock; /* please merge with above */
287
288 u8 initialized; /* flag if zoran has been correctly initialized */
289 int user; /* number of current users */
290 struct card_info card;
291 struct tvnorm *timing;
292
293 unsigned short id; /* number of this device */
294 char name[32]; /* name of this device */
295 struct pci_dev *pci_dev; /* PCI device */
296 unsigned char revision; /* revision of zr36057 */
297 unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */
298
299 spinlock_t spinlock; /* Spinlock */
300
301 /* Video for Linux parameters */
302 int input; /* card's norm and input */
303 v4l2_std_id norm;
304
305 /* Current buffer params */
306 void *vbuf_base;
307 int vbuf_height, vbuf_width;
308 int vbuf_depth;
309 int vbuf_bytesperline;
310
311 struct zoran_overlay_settings overlay_settings;
312 u32 *overlay_mask; /* overlay mask */
313 enum zoran_lock_activity overlay_active; /* feature currently in use? */
314
315 wait_queue_head_t v4l_capq;
316
317 int v4l_overlay_active; /* Overlay grab is activated */
318 int v4l_memgrab_active; /* Memory grab is activated */
319
320 int v4l_grab_frame; /* Frame number being currently grabbed */
321 #define NO_GRAB_ACTIVE (-1)
322 unsigned long v4l_grab_seq; /* Number of frames grabbed */
323 struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
324
325 /* V4L grab queue of frames pending */
326 unsigned long v4l_pend_head;
327 unsigned long v4l_pend_tail;
328 unsigned long v4l_sync_tail;
329 int v4l_pend[V4L_MAX_FRAME];
330 struct zoran_buffer_col v4l_buffers; /* V4L buffers' info */
331
332 /* Buz MJPEG parameters */
333 enum zoran_codec_mode codec_mode; /* status of codec */
334 struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
335
336 wait_queue_head_t jpg_capq; /* wait here for grab to finish */
337
338 /* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
339 /* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
340 /* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
341 unsigned long jpg_que_head; /* Index where to put next buffer which is queued */
342 unsigned long jpg_dma_head; /* Index of next buffer which goes into stat_com */
343 unsigned long jpg_dma_tail; /* Index of last buffer in stat_com */
344 unsigned long jpg_que_tail; /* Index of last buffer in queue */
345 unsigned long jpg_seq_num; /* count of frames since grab/play started */
346 unsigned long jpg_err_seq; /* last seq_num before error */
347 unsigned long jpg_err_shift;
348 unsigned long jpg_queued_num; /* count of frames queued since grab/play started */
349
350 /* zr36057's code buffer table */
351 __le32 *stat_com; /* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */
352
353 /* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */
354 int jpg_pend[BUZ_MAX_FRAME];
355
356 /* array indexed by frame number */
357 struct zoran_buffer_col jpg_buffers; /* MJPEG buffers' info */
358
359 /* Additional stuff for testing */
360 #ifdef CONFIG_PROC_FS
361 struct proc_dir_entry *zoran_proc;
362 #else
363 void *zoran_proc;
364 #endif
365 int testing;
366 int jpeg_error;
367 int intr_counter_GIRQ1;
368 int intr_counter_GIRQ0;
369 int intr_counter_CodRepIRQ;
370 int intr_counter_JPEGRepIRQ;
371 int field_counter;
372 int IRQ1_in;
373 int IRQ1_out;
374 int JPEG_in;
375 int JPEG_out;
376 int JPEG_0;
377 int JPEG_1;
378 int END_event_missed;
379 int JPEG_missed;
380 int JPEG_error;
381 int num_errors;
382 int JPEG_max_missed;
383 int JPEG_min_missed;
384
385 u32 last_isr;
386 unsigned long frame_num;
387
388 wait_queue_head_t test_q;
389 };
390
to_zoran(struct v4l2_device * v4l2_dev)391 static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
392 {
393 return container_of(v4l2_dev, struct zoran, v4l2_dev);
394 }
395
396 /* There was something called _ALPHA_BUZ that used the PCI address instead of
397 * the kernel iomapped address for btread/btwrite. */
398 #define btwrite(dat,adr) writel((dat), zr->zr36057_mem+(adr))
399 #define btread(adr) readl(zr->zr36057_mem+(adr))
400
401 #define btand(dat,adr) btwrite((dat) & btread(adr), adr)
402 #define btor(dat,adr) btwrite((dat) | btread(adr), adr)
403 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
404
405 #endif
406