1 /*
2 * Driver for the Conexant CX25821 PCIe bridge
3 *
4 * Copyright (C) 2009 Conexant Systems Inc.
5 * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
6 * Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 *
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
23
24 #ifndef CX25821_H_
25 #define CX25821_H_
26
27 #include <linux/pci.h>
28 #include <linux/i2c.h>
29 #include <linux/i2c-algo-bit.h>
30 #include <linux/interrupt.h>
31 #include <linux/delay.h>
32 #include <linux/sched.h>
33 #include <linux/kdev_t.h>
34
35 #include <media/v4l2-common.h>
36 #include <media/v4l2-device.h>
37 #include <media/tuner.h>
38 #include <media/tveeprom.h>
39 #include <media/videobuf-dma-sg.h>
40 #include <media/videobuf-dvb.h>
41
42 #include "btcx-risc.h"
43 #include "cx25821-reg.h"
44 #include "cx25821-medusa-reg.h"
45 #include "cx25821-sram.h"
46 #include "cx25821-audio.h"
47 #include "media/cx2341x.h"
48
49 #include <linux/version.h>
50 #include <linux/mutex.h>
51
52 #define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
53
54 #define UNSET (-1U)
55 #define NO_SYNC_LINE (-1U)
56
57 #define CX25821_MAXBOARDS 2
58
59 #define TRUE 1
60 #define FALSE 0
61 #define LINE_SIZE_D1 1440
62
63 /* Number of decoders and encoders */
64 #define MAX_DECODERS 8
65 #define MAX_ENCODERS 2
66 #define QUAD_DECODERS 4
67 #define MAX_CAMERAS 16
68
69 /* Max number of inputs by card */
70 #define MAX_CX25821_INPUT 8
71 #define INPUT(nr) (&cx25821_boards[dev->board].input[nr])
72 #define RESOURCE_VIDEO0 1
73 #define RESOURCE_VIDEO1 2
74 #define RESOURCE_VIDEO2 4
75 #define RESOURCE_VIDEO3 8
76 #define RESOURCE_VIDEO4 16
77 #define RESOURCE_VIDEO5 32
78 #define RESOURCE_VIDEO6 64
79 #define RESOURCE_VIDEO7 128
80 #define RESOURCE_VIDEO8 256
81 #define RESOURCE_VIDEO9 512
82 #define RESOURCE_VIDEO10 1024
83 #define RESOURCE_VIDEO11 2048
84 #define RESOURCE_VIDEO_IOCTL 4096
85
86 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
87
88 #define UNKNOWN_BOARD 0
89 #define CX25821_BOARD 1
90
91 /* Currently supported by the driver */
92 #define CX25821_NORMS (\
93 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \
94 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \
95 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \
96 V4L2_STD_PAL_Nc)
97
98 #define CX25821_BOARD_CONEXANT_ATHENA10 1
99 #define MAX_VID_CHANNEL_NUM 12
100 #define VID_CHANNEL_NUM 8
101
102 struct cx25821_fmt {
103 char *name;
104 u32 fourcc; /* v4l2 format id */
105 int depth;
106 int flags;
107 u32 cxformat;
108 };
109
110 struct cx25821_ctrl {
111 struct v4l2_queryctrl v;
112 u32 off;
113 u32 reg;
114 u32 mask;
115 u32 shift;
116 };
117
118 struct cx25821_tvnorm {
119 char *name;
120 v4l2_std_id id;
121 u32 cxiformat;
122 u32 cxoformat;
123 };
124
125 struct cx25821_fh {
126 struct cx25821_dev *dev;
127 enum v4l2_buf_type type;
128 int radio;
129 u32 resources;
130
131 enum v4l2_priority prio;
132
133 /* video overlay */
134 struct v4l2_window win;
135 struct v4l2_clip *clips;
136 unsigned int nclips;
137
138 /* video capture */
139 struct cx25821_fmt *fmt;
140 unsigned int width, height;
141 int channel_id;
142
143 /* vbi capture */
144 struct videobuf_queue vidq;
145 struct videobuf_queue vbiq;
146
147 /* H264 Encoder specifics ONLY */
148 struct videobuf_queue mpegq;
149 atomic_t v4l_reading;
150 };
151
152 enum cx25821_itype {
153 CX25821_VMUX_COMPOSITE = 1,
154 CX25821_VMUX_SVIDEO,
155 CX25821_VMUX_DEBUG,
156 CX25821_RADIO,
157 };
158
159 enum cx25821_src_sel_type {
160 CX25821_SRC_SEL_EXT_656_VIDEO = 0,
161 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
162 };
163
164 /* buffer for one video frame */
165 struct cx25821_buffer {
166 /* common v4l buffer stuff -- must be first */
167 struct videobuf_buffer vb;
168
169 /* cx25821 specific */
170 unsigned int bpl;
171 struct btcx_riscmem risc;
172 struct cx25821_fmt *fmt;
173 u32 count;
174 };
175
176 struct cx25821_input {
177 enum cx25821_itype type;
178 unsigned int vmux;
179 u32 gpio0, gpio1, gpio2, gpio3;
180 };
181
182 typedef enum {
183 CX25821_UNDEFINED = 0,
184 CX25821_RAW,
185 CX25821_264
186 } port_t;
187
188 struct cx25821_board {
189 char *name;
190 port_t porta, portb, portc;
191 unsigned int tuner_type;
192 unsigned int radio_type;
193 unsigned char tuner_addr;
194 unsigned char radio_addr;
195
196 u32 clk_freq;
197 struct cx25821_input input[2];
198 };
199
200 struct cx25821_subid {
201 u16 subvendor;
202 u16 subdevice;
203 u32 card;
204 };
205
206 struct cx25821_i2c {
207 struct cx25821_dev *dev;
208
209 int nr;
210
211 /* i2c i/o */
212 struct i2c_adapter i2c_adap;
213 struct i2c_algo_bit_data i2c_algo;
214 struct i2c_client i2c_client;
215 u32 i2c_rc;
216
217 /* cx25821 registers used for raw addess */
218 u32 i2c_period;
219 u32 reg_ctrl;
220 u32 reg_stat;
221 u32 reg_addr;
222 u32 reg_rdata;
223 u32 reg_wdata;
224 };
225
226 struct cx25821_dmaqueue {
227 struct list_head active;
228 struct list_head queued;
229 struct timer_list timeout;
230 struct btcx_riscmem stopper;
231 u32 count;
232 };
233
234 struct cx25821_data {
235 struct cx25821_dev *dev;
236 struct sram_channel *channel;
237 };
238
239 struct cx25821_channel {
240 struct v4l2_prio_state prio;
241
242 int ctl_bright;
243 int ctl_contrast;
244 int ctl_hue;
245 int ctl_saturation;
246 struct cx25821_data timeout_data;
247
248 struct video_device *video_dev;
249 struct cx25821_dmaqueue vidq;
250
251 struct sram_channel *sram_channels;
252
253 struct mutex lock;
254 int resources;
255
256 int pixel_formats;
257 int use_cif_resolution;
258 int cif_width;
259 };
260
261 struct cx25821_dev {
262 struct list_head devlist;
263 atomic_t refcount;
264 struct v4l2_device v4l2_dev;
265
266 /* pci stuff */
267 struct pci_dev *pci;
268 unsigned char pci_rev, pci_lat;
269 int pci_bus, pci_slot;
270 u32 base_io_addr;
271 u32 __iomem *lmmio;
272 u8 __iomem *bmmio;
273 int pci_irqmask;
274 int hwrevision;
275
276 u32 clk_freq;
277
278 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
279 struct cx25821_i2c i2c_bus[3];
280
281 int nr;
282 struct mutex lock;
283
284 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
285
286 /* board details */
287 unsigned int board;
288 char name[32];
289
290 /* Analog video */
291 u32 resources;
292 unsigned int input;
293 u32 tvaudio;
294 v4l2_std_id tvnorm;
295 unsigned int tuner_type;
296 unsigned char tuner_addr;
297 unsigned int radio_type;
298 unsigned char radio_addr;
299 unsigned int has_radio;
300 unsigned int videc_type;
301 unsigned char videc_addr;
302 unsigned short _max_num_decoders;
303
304 /* Analog Audio Upstream */
305 int _audio_is_running;
306 int _audiopixel_format;
307 int _is_first_audio_frame;
308 int _audiofile_status;
309 int _audio_lines_count;
310 int _audioframe_count;
311 int _audio_upstream_channel_select;
312 int _last_index_irq; /* The last interrupt index processed. */
313
314 __le32 *_risc_audio_jmp_addr;
315 __le32 *_risc_virt_start_addr;
316 __le32 *_risc_virt_addr;
317 dma_addr_t _risc_phys_addr;
318 dma_addr_t _risc_phys_start_addr;
319
320 unsigned int _audiorisc_size;
321 unsigned int _audiodata_buf_size;
322 __le32 *_audiodata_buf_virt_addr;
323 dma_addr_t _audiodata_buf_phys_addr;
324 char *_audiofilename;
325
326 /* V4l */
327 u32 freq;
328 struct video_device *vbi_dev;
329 struct video_device *radio_dev;
330 struct video_device *ioctl_dev;
331
332 spinlock_t slock;
333
334 /* Video Upstream */
335 int _line_size;
336 int _prog_cnt;
337 int _pixel_format;
338 int _is_first_frame;
339 int _is_running;
340 int _file_status;
341 int _lines_count;
342 int _frame_count;
343 int _channel_upstream_select;
344 unsigned int _risc_size;
345
346 __le32 *_dma_virt_start_addr;
347 __le32 *_dma_virt_addr;
348 dma_addr_t _dma_phys_addr;
349 dma_addr_t _dma_phys_start_addr;
350
351 unsigned int _data_buf_size;
352 __le32 *_data_buf_virt_addr;
353 dma_addr_t _data_buf_phys_addr;
354 char *_filename;
355 char *_defaultname;
356
357 int _line_size_ch2;
358 int _prog_cnt_ch2;
359 int _pixel_format_ch2;
360 int _is_first_frame_ch2;
361 int _is_running_ch2;
362 int _file_status_ch2;
363 int _lines_count_ch2;
364 int _frame_count_ch2;
365 int _channel2_upstream_select;
366 unsigned int _risc_size_ch2;
367
368 __le32 *_dma_virt_start_addr_ch2;
369 __le32 *_dma_virt_addr_ch2;
370 dma_addr_t _dma_phys_addr_ch2;
371 dma_addr_t _dma_phys_start_addr_ch2;
372
373 unsigned int _data_buf_size_ch2;
374 __le32 *_data_buf_virt_addr_ch2;
375 dma_addr_t _data_buf_phys_addr_ch2;
376 char *_filename_ch2;
377 char *_defaultname_ch2;
378
379 /* MPEG Encoder ONLY settings */
380 u32 cx23417_mailbox;
381 struct cx2341x_mpeg_params mpeg_params;
382 struct video_device *v4l_device;
383 atomic_t v4l_reader_count;
384 struct cx25821_tvnorm encodernorm;
385
386 u32 upstream_riscbuf_size;
387 u32 upstream_databuf_size;
388 u32 upstream_riscbuf_size_ch2;
389 u32 upstream_databuf_size_ch2;
390 u32 audio_upstream_riscbuf_size;
391 u32 audio_upstream_databuf_size;
392 int _isNTSC;
393 int _frame_index;
394 int _audioframe_index;
395 struct workqueue_struct *_irq_queues;
396 struct work_struct _irq_work_entry;
397 struct workqueue_struct *_irq_queues_ch2;
398 struct work_struct _irq_work_entry_ch2;
399 struct workqueue_struct *_irq_audio_queues;
400 struct work_struct _audio_work_entry;
401 char *input_filename;
402 char *input_filename_ch2;
403 int _frame_index_ch2;
404 int _isNTSC_ch2;
405 char *vid_stdname_ch2;
406 int pixel_format_ch2;
407 int channel_select_ch2;
408 int command_ch2;
409 char *input_audiofilename;
410 char *vid_stdname;
411 int pixel_format;
412 int channel_select;
413 int command;
414 int channel_opened;
415 };
416
417 struct upstream_user_struct {
418 char *input_filename;
419 char *vid_stdname;
420 int pixel_format;
421 int channel_select;
422 int command;
423 };
424
425 struct downstream_user_struct {
426 char *vid_stdname;
427 int pixel_format;
428 int cif_resolution_enable;
429 int cif_width;
430 int decoder_select;
431 int command;
432 int reg_address;
433 int reg_data;
434 };
435
436 extern struct upstream_user_struct *up_data;
437
get_cx25821(struct v4l2_device * v4l2_dev)438 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
439 {
440 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
441 }
442
443 #define cx25821_call_all(dev, o, f, args...) \
444 v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
445
446 extern struct list_head cx25821_devlist;
447 extern struct mutex cx25821_devlist_mutex;
448
449 extern struct cx25821_board cx25821_boards[];
450 extern struct cx25821_subid cx25821_subids[];
451
452 #define SRAM_CH00 0 /* Video A */
453 #define SRAM_CH01 1 /* Video B */
454 #define SRAM_CH02 2 /* Video C */
455 #define SRAM_CH03 3 /* Video D */
456 #define SRAM_CH04 4 /* Video E */
457 #define SRAM_CH05 5 /* Video F */
458 #define SRAM_CH06 6 /* Video G */
459 #define SRAM_CH07 7 /* Video H */
460
461 #define SRAM_CH08 8 /* Audio A */
462 #define SRAM_CH09 9 /* Video Upstream I */
463 #define SRAM_CH10 10 /* Video Upstream J */
464 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */
465
466 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09
467 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10
468 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11
469 #define VIDEO_IOCTL_CH 11
470
471 struct sram_channel {
472 char *name;
473 u32 i;
474 u32 cmds_start;
475 u32 ctrl_start;
476 u32 cdt;
477 u32 fifo_start;
478 u32 fifo_size;
479 u32 ptr1_reg;
480 u32 ptr2_reg;
481 u32 cnt1_reg;
482 u32 cnt2_reg;
483 u32 int_msk;
484 u32 int_stat;
485 u32 int_mstat;
486 u32 dma_ctl;
487 u32 gpcnt_ctl;
488 u32 gpcnt;
489 u32 aud_length;
490 u32 aud_cfg;
491 u32 fld_aud_fifo_en;
492 u32 fld_aud_risc_en;
493
494 /* For Upstream Video */
495 u32 vid_fmt_ctl;
496 u32 vid_active_ctl1;
497 u32 vid_active_ctl2;
498 u32 vid_cdt_size;
499
500 u32 vip_ctl;
501 u32 pix_frmt;
502 u32 jumponly;
503 u32 irq_bit;
504 };
505 extern struct sram_channel cx25821_sram_channels[];
506
507 #define STATUS_SUCCESS 0
508 #define STATUS_UNSUCCESSFUL -1
509
510 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2))
511 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2))
512
513 #define cx_andor(reg, mask, value) \
514 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
515 ((value) & (mask)), dev->lmmio+((reg)>>2))
516
517 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit))
518 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0)
519
520 #define Set_GPIO_Bit(Bit) (1 << Bit)
521 #define Clear_GPIO_Bit(Bit) (~(1 << Bit))
522
523 #define CX25821_ERR(fmt, args...) \
524 pr_err("(%d): " fmt, dev->board, ##args)
525 #define CX25821_WARN(fmt, args...) \
526 pr_warn("(%d): " fmt, dev->board, ##args)
527 #define CX25821_INFO(fmt, args...) \
528 pr_info("(%d): " fmt, dev->board, ##args)
529
530 extern int cx25821_i2c_register(struct cx25821_i2c *bus);
531 extern void cx25821_card_setup(struct cx25821_dev *dev);
532 extern int cx25821_ir_init(struct cx25821_dev *dev);
533 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
534 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
535 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
536 extern void cx25821_gpio_init(struct cx25821_dev *dev);
537 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
538 int pin_number, int pin_logic_value);
539
540 extern int medusa_video_init(struct cx25821_dev *dev);
541 extern int medusa_set_videostandard(struct cx25821_dev *dev);
542 extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
543 int decoder_select);
544 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
545 int decoder);
546 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
547 int decoder);
548 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
549 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
550 int decoder);
551
552 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
553 struct sram_channel *ch, unsigned int bpl,
554 u32 risc);
555
556 extern int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
557 struct scatterlist *sglist,
558 unsigned int top_offset,
559 unsigned int bottom_offset,
560 unsigned int bpl,
561 unsigned int padding, unsigned int lines);
562 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
563 struct btcx_riscmem *risc,
564 struct scatterlist *sglist,
565 unsigned int bpl,
566 unsigned int lines, unsigned int lpi);
567 extern void cx25821_free_buffer(struct videobuf_queue *q,
568 struct cx25821_buffer *buf);
569 extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
570 u32 reg, u32 mask, u32 value);
571 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
572 struct sram_channel *ch);
573 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
574 struct sram_channel *ch);
575
576 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
577 extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
578 int len, u32 bits, u32 mask);
579 extern void cx25821_dev_unregister(struct cx25821_dev *dev);
580 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
581 struct sram_channel *ch,
582 unsigned int bpl, u32 risc);
583
584 extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev,
585 int channel_select, int pixel_format);
586 extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev,
587 int channel_select, int pixel_format);
588 extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
589 int channel_select);
590 extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev);
591 extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev);
592 extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
593 extern void cx25821_start_upstream_video_ch1(struct cx25821_dev *dev,
594 struct upstream_user_struct
595 *up_data);
596 extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev,
597 struct upstream_user_struct
598 *up_data);
599 extern void cx25821_start_upstream_audio(struct cx25821_dev *dev,
600 struct upstream_user_struct *up_data);
601 extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev);
602 extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev);
603 extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
604 extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
605 struct sram_channel *ch,
606 unsigned int bpl, u32 risc);
607 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
608 u32 format);
609 extern void cx25821_videoioctl_unregister(struct cx25821_dev *dev);
610 extern struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
611 struct pci_dev *pci,
612 struct video_device *template,
613 char *type);
614 #endif
615