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cx25821.h
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1 /*
2  * Driver for the Conexant CX25821 PCIe bridge
3  *
4  * Copyright (C) 2009 Conexant Systems Inc.
5  * Authors <[email protected]>, <[email protected]>
6  * Based on Steven Toth <[email protected]> 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/interrupt.h>
30 #include <linux/delay.h>
31 #include <linux/sched.h>
32 #include <linux/kdev_t.h>
33 
34 #include <media/v4l2-common.h>
35 #include <media/v4l2-device.h>
36 #include <media/tuner.h>
37 #include <media/tveeprom.h>
38 #include <media/videobuf-dma-sg.h>
39 #include <media/videobuf-dvb.h>
40 
41 #include "btcx-risc.h"
42 #include "cx25821-reg.h"
43 #include "cx25821-medusa-reg.h"
44 #include "cx25821-sram.h"
45 #include "cx25821-audio.h"
46 #include "media/cx2341x.h"
47 
48 #include <linux/version.h>
49 #include <linux/mutex.h>
50 
51 #define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
52 
53 #define UNSET (-1U)
54 #define NO_SYNC_LINE (-1U)
55 
56 #define CX25821_MAXBOARDS 2
57 
58 #define TRUE 1
59 #define FALSE 0
60 #define LINE_SIZE_D1 1440
61 
62 /* Number of decoders and encoders */
63 #define MAX_DECODERS 8
64 #define MAX_ENCODERS 2
65 #define QUAD_DECODERS 4
66 #define MAX_CAMERAS 16
67 
68 /* Max number of inputs by card */
69 #define MAX_CX25821_INPUT 8
70 #define INPUT(nr) (&cx25821_boards[dev->board].input[nr])
71 #define RESOURCE_VIDEO0 1
72 #define RESOURCE_VIDEO1 2
73 #define RESOURCE_VIDEO2 4
74 #define RESOURCE_VIDEO3 8
75 #define RESOURCE_VIDEO4 16
76 #define RESOURCE_VIDEO5 32
77 #define RESOURCE_VIDEO6 64
78 #define RESOURCE_VIDEO7 128
79 #define RESOURCE_VIDEO8 256
80 #define RESOURCE_VIDEO9 512
81 #define RESOURCE_VIDEO10 1024
82 #define RESOURCE_VIDEO11 2048
83 #define RESOURCE_VIDEO_IOCTL 4096
84 
85 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
86 
87 #define UNKNOWN_BOARD 0
88 #define CX25821_BOARD 1
89 
90 /* Currently supported by the driver */
91 #define CX25821_NORMS (\
92  V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \
93  V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \
94  V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \
95  V4L2_STD_PAL_Nc)
96 
97 #define CX25821_BOARD_CONEXANT_ATHENA10 1
98 #define MAX_VID_CHANNEL_NUM 12
99 #define VID_CHANNEL_NUM 8
100 #define CX25821_NR_INPUT 2
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 enum port {
183  CX25821_UNDEFINED = 0,
184  CX25821_RAW,
185  CX25821_264
186 };
187 
188 struct cx25821_board {
189  const char *name;
190  enum port porta;
191  enum port portb;
192  enum port portc;
193  unsigned int tuner_type;
194  unsigned int radio_type;
195  unsigned char tuner_addr;
196  unsigned char radio_addr;
197 
198  u32 clk_freq;
199  struct cx25821_input input[CX25821_NR_INPUT];
200 };
201 
202 struct cx25821_subid {
203  u16 subvendor;
204  u16 subdevice;
205  u32 card;
206 };
207 
208 struct cx25821_i2c {
209  struct cx25821_dev *dev;
210 
211  int nr;
212 
213  /* i2c i/o */
214  struct i2c_adapter i2c_adap;
215  struct i2c_client i2c_client;
216  u32 i2c_rc;
217 
218  /* cx25821 registers used for raw addess */
219  u32 i2c_period;
220  u32 reg_ctrl;
221  u32 reg_stat;
222  u32 reg_addr;
223  u32 reg_rdata;
224  u32 reg_wdata;
225 };
226 
227 struct cx25821_dmaqueue {
228  struct list_head active;
229  struct list_head queued;
230  struct timer_list timeout;
231  struct btcx_riscmem stopper;
232  u32 count;
233 };
234 
235 struct cx25821_data {
236  struct cx25821_dev *dev;
237  struct sram_channel *channel;
238 };
239 
240 struct cx25821_channel {
241  struct v4l2_prio_state prio;
242 
243  int ctl_bright;
244  int ctl_contrast;
245  int ctl_hue;
246  int ctl_saturation;
247  struct cx25821_data timeout_data;
248 
249  struct video_device *video_dev;
250  struct cx25821_dmaqueue vidq;
251 
252  struct sram_channel *sram_channels;
253 
254  struct mutex lock;
255  int resources;
256 
257  int pixel_formats;
258  int use_cif_resolution;
259  int cif_width;
260 };
261 
262 struct cx25821_dev {
263  struct list_head devlist;
264  atomic_t refcount;
265  struct v4l2_device v4l2_dev;
266 
267  /* pci stuff */
268  struct pci_dev *pci;
269  unsigned char pci_rev, pci_lat;
270  int pci_bus, pci_slot;
271  u32 base_io_addr;
272  u32 __iomem *lmmio;
273  u8 __iomem *bmmio;
274  int pci_irqmask;
275  int hwrevision;
276 
277  u32 clk_freq;
278 
279  /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
280  struct cx25821_i2c i2c_bus[3];
281 
282  int nr;
283  struct mutex lock;
284 
285  struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
286 
287  /* board details */
288  unsigned int board;
289  char name[32];
290 
291  /* Analog video */
292  u32 resources;
293  unsigned int input;
294  u32 tvaudio;
295  v4l2_std_id tvnorm;
296  unsigned int tuner_type;
297  unsigned char tuner_addr;
298  unsigned int radio_type;
299  unsigned char radio_addr;
300  unsigned int has_radio;
301  unsigned int videc_type;
302  unsigned char videc_addr;
303  unsigned short _max_num_decoders;
304 
305  /* Analog Audio Upstream */
306  int _audio_is_running;
307  int _audiopixel_format;
308  int _is_first_audio_frame;
309  int _audiofile_status;
310  int _audio_lines_count;
311  int _audioframe_count;
312  int _audio_upstream_channel;
313  int _last_index_irq; /* The last interrupt index processed. */
314 
315  __le32 *_risc_audio_jmp_addr;
316  __le32 *_risc_virt_start_addr;
317  __le32 *_risc_virt_addr;
318  dma_addr_t _risc_phys_addr;
319  dma_addr_t _risc_phys_start_addr;
320 
321  unsigned int _audiorisc_size;
322  unsigned int _audiodata_buf_size;
323  __le32 *_audiodata_buf_virt_addr;
324  dma_addr_t _audiodata_buf_phys_addr;
325  char *_audiofilename;
326 
327  /* V4l */
328  u32 freq;
329  struct video_device *vbi_dev;
330  struct video_device *radio_dev;
331  struct video_device *ioctl_dev;
332 
333  spinlock_t slock;
334 
335  /* Video Upstream */
336  int _line_size;
337  int _prog_cnt;
338  int _pixel_format;
339  int _is_first_frame;
340  int _is_running;
341  int _file_status;
342  int _lines_count;
343  int _frame_count;
344  int _channel_upstream_select;
345  unsigned int _risc_size;
346 
347  __le32 *_dma_virt_start_addr;
348  __le32 *_dma_virt_addr;
349  dma_addr_t _dma_phys_addr;
350  dma_addr_t _dma_phys_start_addr;
351 
352  unsigned int _data_buf_size;
353  __le32 *_data_buf_virt_addr;
354  dma_addr_t _data_buf_phys_addr;
355  char *_filename;
356  char *_defaultname;
357 
358  int _line_size_ch2;
359  int _prog_cnt_ch2;
360  int _pixel_format_ch2;
361  int _is_first_frame_ch2;
362  int _is_running_ch2;
363  int _file_status_ch2;
364  int _lines_count_ch2;
365  int _frame_count_ch2;
366  int _channel2_upstream_select;
367  unsigned int _risc_size_ch2;
368 
369  __le32 *_dma_virt_start_addr_ch2;
370  __le32 *_dma_virt_addr_ch2;
371  dma_addr_t _dma_phys_addr_ch2;
372  dma_addr_t _dma_phys_start_addr_ch2;
373 
374  unsigned int _data_buf_size_ch2;
375  __le32 *_data_buf_virt_addr_ch2;
376  dma_addr_t _data_buf_phys_addr_ch2;
377  char *_filename_ch2;
378  char *_defaultname_ch2;
379 
380  /* MPEG Encoder ONLY settings */
381  u32 cx23417_mailbox;
382  struct cx2341x_mpeg_params mpeg_params;
383  struct video_device *v4l_device;
384  atomic_t v4l_reader_count;
385  struct cx25821_tvnorm encodernorm;
386 
387  u32 upstream_riscbuf_size;
388  u32 upstream_databuf_size;
389  u32 upstream_riscbuf_size_ch2;
390  u32 upstream_databuf_size_ch2;
391  u32 audio_upstream_riscbuf_size;
392  u32 audio_upstream_databuf_size;
393  int _isNTSC;
394  int _frame_index;
395  int _audioframe_index;
396  struct workqueue_struct *_irq_queues;
397  struct work_struct _irq_work_entry;
398  struct workqueue_struct *_irq_queues_ch2;
399  struct work_struct _irq_work_entry_ch2;
400  struct workqueue_struct *_irq_audio_queues;
401  struct work_struct _audio_work_entry;
402  char *input_filename;
403  char *input_filename_ch2;
404  int _frame_index_ch2;
405  int _isNTSC_ch2;
406  char *vid_stdname_ch2;
407  int pixel_format_ch2;
408  int channel_select_ch2;
409  int command_ch2;
410  char *input_audiofilename;
411  char *vid_stdname;
412  int pixel_format;
413  int channel_select;
414  int command;
415  int channel_opened;
416 };
417 
418 struct upstream_user_struct {
419  char *input_filename;
420  char *vid_stdname;
421  int pixel_format;
422  int channel_select;
423  int command;
424 };
425 
426 struct downstream_user_struct {
427  char *vid_stdname;
428  int pixel_format;
429  int cif_resolution_enable;
430  int cif_width;
431  int decoder_select;
432  int command;
433  int reg_address;
434  int reg_data;
435 };
436 
437 extern struct upstream_user_struct *up_data;
438 
439 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
440 {
441  return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
442 }
443 
444 #define cx25821_call_all(dev, o, f, args...) \
445  v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
446 
447 extern struct list_head cx25821_devlist;
448 extern struct mutex cx25821_devlist_mutex;
449 
450 extern struct cx25821_board cx25821_boards[];
451 extern struct cx25821_subid cx25821_subids[];
452 
453 #define SRAM_CH00 0 /* Video A */
454 #define SRAM_CH01 1 /* Video B */
455 #define SRAM_CH02 2 /* Video C */
456 #define SRAM_CH03 3 /* Video D */
457 #define SRAM_CH04 4 /* Video E */
458 #define SRAM_CH05 5 /* Video F */
459 #define SRAM_CH06 6 /* Video G */
460 #define SRAM_CH07 7 /* Video H */
461 
462 #define SRAM_CH08 8 /* Audio A */
463 #define SRAM_CH09 9 /* Video Upstream I */
464 #define SRAM_CH10 10 /* Video Upstream J */
465 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */
466 
467 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09
468 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10
469 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11
470 #define VIDEO_IOCTL_CH 11
471 
472 struct sram_channel {
473  char *name;
474  u32 i;
475  u32 cmds_start;
476  u32 ctrl_start;
477  u32 cdt;
478  u32 fifo_start;
479  u32 fifo_size;
480  u32 ptr1_reg;
481  u32 ptr2_reg;
482  u32 cnt1_reg;
483  u32 cnt2_reg;
484  u32 int_msk;
485  u32 int_stat;
486  u32 int_mstat;
487  u32 dma_ctl;
488  u32 gpcnt_ctl;
489  u32 gpcnt;
490  u32 aud_length;
491  u32 aud_cfg;
492  u32 fld_aud_fifo_en;
493  u32 fld_aud_risc_en;
494 
495  /* For Upstream Video */
496  u32 vid_fmt_ctl;
497  u32 vid_active_ctl1;
498  u32 vid_active_ctl2;
499  u32 vid_cdt_size;
500 
501  u32 vip_ctl;
502  u32 pix_frmt;
503  u32 jumponly;
504  u32 irq_bit;
505 };
506 extern struct sram_channel cx25821_sram_channels[];
507 
508 #define STATUS_SUCCESS 0
509 #define STATUS_UNSUCCESSFUL -1
510 
511 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2))
512 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2))
513 
514 #define cx_andor(reg, mask, value) \
515  writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
516  ((value) & (mask)), dev->lmmio+((reg)>>2))
517 
518 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit))
519 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0)
520 
521 #define Set_GPIO_Bit(Bit) (1 << Bit)
522 #define Clear_GPIO_Bit(Bit) (~(1 << Bit))
523 
524 #define CX25821_ERR(fmt, args...) \
525  pr_err("(%d): " fmt, dev->board, ##args)
526 #define CX25821_WARN(fmt, args...) \
527  pr_warn("(%d): " fmt, dev->board, ##args)
528 #define CX25821_INFO(fmt, args...) \
529  pr_info("(%d): " fmt, dev->board, ##args)
530 
531 extern int cx25821_i2c_register(struct cx25821_i2c *bus);
532 extern void cx25821_card_setup(struct cx25821_dev *dev);
533 extern int cx25821_ir_init(struct cx25821_dev *dev);
534 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
535 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
536 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
537 extern void cx25821_gpio_init(struct cx25821_dev *dev);
538 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
539  int pin_number, int pin_logic_value);
540 
541 extern int medusa_video_init(struct cx25821_dev *dev);
542 extern int medusa_set_videostandard(struct cx25821_dev *dev);
543 extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
544  int decoder_select);
545 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
546  int decoder);
547 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
548  int decoder);
549 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
550 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
551  int decoder);
552 
553 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
554  struct sram_channel *ch, unsigned int bpl,
555  u32 risc);
556 
557 extern int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
558  struct scatterlist *sglist,
559  unsigned int top_offset,
560  unsigned int bottom_offset,
561  unsigned int bpl,
562  unsigned int padding, unsigned int lines);
563 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
564  struct btcx_riscmem *risc,
565  struct scatterlist *sglist,
566  unsigned int bpl,
567  unsigned int lines, unsigned int lpi);
568 extern void cx25821_free_buffer(struct videobuf_queue *q,
569  struct cx25821_buffer *buf);
570 extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
571  u32 reg, u32 mask, u32 value);
572 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
573  struct sram_channel *ch);
574 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
575  struct sram_channel *ch);
576 
577 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
578 extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
579  int len, u32 bits, u32 mask);
580 extern void cx25821_dev_unregister(struct cx25821_dev *dev);
581 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
582  struct sram_channel *ch,
583  unsigned int bpl, u32 risc);
584 
585 extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev,
586  int channel_select, int pixel_format);
587 extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev,
588  int channel_select, int pixel_format);
589 extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
590  int channel_select);
591 extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev);
592 extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev);
593 extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
594 extern void cx25821_start_upstream_video_ch1(struct cx25821_dev *dev,
595  struct upstream_user_struct
596  *up_data);
597 extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev,
598  struct upstream_user_struct
599  *up_data);
600 extern void cx25821_start_upstream_audio(struct cx25821_dev *dev,
601  struct upstream_user_struct *up_data);
602 extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev);
603 extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev);
604 extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
605 extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
606  struct sram_channel *ch,
607  unsigned int bpl, u32 risc);
608 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
609  u32 format);
610 extern void cx25821_videoioctl_unregister(struct cx25821_dev *dev);
611 extern struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
612  struct pci_dev *pci,
613  struct video_device *template,
614  char *type);
615 #endif
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