2 * Driver for the Conexant CX25821 PCIe bridge
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
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.
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
17 * GNU General Public License for more details.
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.
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>
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>
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"
48 #include <linux/version.h>
49 #include <linux/mutex.h>
51 #define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
54 #define NO_SYNC_LINE (-1U)
56 #define CX25821_MAXBOARDS 2
60 #define LINE_SIZE_D1 1440
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
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
85 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
87 #define UNKNOWN_BOARD 0
88 #define CX25821_BOARD 1
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 | \
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
104 u32 fourcc; /* v4l2 format id */
110 struct cx25821_ctrl {
111 struct v4l2_queryctrl v;
118 struct cx25821_tvnorm {
126 struct cx25821_dev *dev;
127 enum v4l2_buf_type type;
131 enum v4l2_priority prio;
134 struct v4l2_window win;
135 struct v4l2_clip *clips;
139 struct cx25821_fmt *fmt;
140 unsigned int width, height;
144 struct videobuf_queue vidq;
145 struct videobuf_queue vbiq;
147 /* H264 Encoder specifics ONLY */
148 struct videobuf_queue mpegq;
149 atomic_t v4l_reading;
153 CX25821_VMUX_COMPOSITE = 1,
159 enum cx25821_src_sel_type {
160 CX25821_SRC_SEL_EXT_656_VIDEO = 0,
161 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
164 /* buffer for one video frame */
165 struct cx25821_buffer {
166 /* common v4l buffer stuff -- must be first */
167 struct videobuf_buffer vb;
169 /* cx25821 specific */
171 struct btcx_riscmem risc;
172 struct cx25821_fmt *fmt;
176 struct cx25821_input {
177 enum cx25821_itype type;
179 u32 gpio0, gpio1, gpio2, gpio3;
183 CX25821_UNDEFINED = 0,
188 struct cx25821_board {
193 unsigned int tuner_type;
194 unsigned int radio_type;
195 unsigned char tuner_addr;
196 unsigned char radio_addr;
199 struct cx25821_input input[CX25821_NR_INPUT];
202 struct cx25821_subid {
209 struct cx25821_dev *dev;
214 struct i2c_adapter i2c_adap;
215 struct i2c_client i2c_client;
218 /* cx25821 registers used for raw addess */
227 struct cx25821_dmaqueue {
228 struct list_head active;
229 struct list_head queued;
230 struct timer_list timeout;
231 struct btcx_riscmem stopper;
235 struct cx25821_data {
236 struct cx25821_dev *dev;
237 struct sram_channel *channel;
240 struct cx25821_channel {
241 struct v4l2_prio_state prio;
247 struct cx25821_data timeout_data;
249 struct video_device *video_dev;
250 struct cx25821_dmaqueue vidq;
252 struct sram_channel *sram_channels;
258 int use_cif_resolution;
263 struct list_head devlist;
265 struct v4l2_device v4l2_dev;
269 unsigned char pci_rev, pci_lat;
270 int pci_bus, pci_slot;
279 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
280 struct cx25821_i2c i2c_bus[3];
285 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
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;
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. */
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;
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;
329 struct video_device *vbi_dev;
330 struct video_device *radio_dev;
331 struct video_device *ioctl_dev;
344 int _channel_upstream_select;
345 unsigned int _risc_size;
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;
352 unsigned int _data_buf_size;
353 __le32 *_data_buf_virt_addr;
354 dma_addr_t _data_buf_phys_addr;
360 int _pixel_format_ch2;
361 int _is_first_frame_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;
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;
374 unsigned int _data_buf_size_ch2;
375 __le32 *_data_buf_virt_addr_ch2;
376 dma_addr_t _data_buf_phys_addr_ch2;
378 char *_defaultname_ch2;
380 /* MPEG Encoder ONLY settings */
382 struct cx2341x_mpeg_params mpeg_params;
383 struct video_device *v4l_device;
384 atomic_t v4l_reader_count;
385 struct cx25821_tvnorm encodernorm;
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;
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;
406 char *vid_stdname_ch2;
407 int pixel_format_ch2;
408 int channel_select_ch2;
410 char *input_audiofilename;
418 struct upstream_user_struct {
419 char *input_filename;
426 struct downstream_user_struct {
429 int cif_resolution_enable;
437 extern struct upstream_user_struct *up_data;
439 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
441 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
444 #define cx25821_call_all(dev, o, f, args...) \
445 v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
447 extern struct list_head cx25821_devlist;
448 extern struct mutex cx25821_devlist_mutex;
450 extern struct cx25821_board cx25821_boards[];
451 extern struct cx25821_subid cx25821_subids[];
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 */
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 */
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
472 struct sram_channel {
495 /* For Upstream Video */
506 extern struct sram_channel cx25821_sram_channels[];
508 #define STATUS_SUCCESS 0
509 #define STATUS_UNSUCCESSFUL -1
511 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2))
512 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2))
514 #define cx_andor(reg, mask, value) \
515 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
516 ((value) & (mask)), dev->lmmio+((reg)>>2))
518 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit))
519 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0)
521 #define Set_GPIO_Bit(Bit) (1 << Bit)
522 #define Clear_GPIO_Bit(Bit) (~(1 << Bit))
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)
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);
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,
545 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
547 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
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,
553 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
554 struct sram_channel *ch, unsigned int bpl,
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,
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,
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);
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);
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,
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
597 extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev,
598 struct upstream_user_struct
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,
610 extern void cx25821_videoioctl_unregister(struct cx25821_dev *dev);
611 extern struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
613 struct video_device *template,