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/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>
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>
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"
49 #include <linux/version.h>
50 #include <linux/mutex.h>
52 #define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
55 #define NO_SYNC_LINE (-1U)
57 #define CX25821_MAXBOARDS 2
61 #define LINE_SIZE_D1 1440
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
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
86 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
88 #define UNKNOWN_BOARD 0
89 #define CX25821_BOARD 1
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 | \
98 #define CX25821_BOARD_CONEXANT_ATHENA10 1
99 #define MAX_VID_CHANNEL_NUM 12
100 #define VID_CHANNEL_NUM 8
101 #define CX25821_NR_INPUT 2
105 u32 fourcc; /* v4l2 format id */
111 struct cx25821_ctrl {
112 struct v4l2_queryctrl v;
119 struct cx25821_tvnorm {
127 struct cx25821_dev *dev;
128 enum v4l2_buf_type type;
132 enum v4l2_priority prio;
135 struct v4l2_window win;
136 struct v4l2_clip *clips;
140 struct cx25821_fmt *fmt;
141 unsigned int width, height;
145 struct videobuf_queue vidq;
146 struct videobuf_queue vbiq;
148 /* H264 Encoder specifics ONLY */
149 struct videobuf_queue mpegq;
150 atomic_t v4l_reading;
154 CX25821_VMUX_COMPOSITE = 1,
160 enum cx25821_src_sel_type {
161 CX25821_SRC_SEL_EXT_656_VIDEO = 0,
162 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
165 /* buffer for one video frame */
166 struct cx25821_buffer {
167 /* common v4l buffer stuff -- must be first */
168 struct videobuf_buffer vb;
170 /* cx25821 specific */
172 struct btcx_riscmem risc;
173 struct cx25821_fmt *fmt;
177 struct cx25821_input {
178 enum cx25821_itype type;
180 u32 gpio0, gpio1, gpio2, gpio3;
184 CX25821_UNDEFINED = 0,
189 struct cx25821_board {
194 unsigned int tuner_type;
195 unsigned int radio_type;
196 unsigned char tuner_addr;
197 unsigned char radio_addr;
200 struct cx25821_input input[CX25821_NR_INPUT];
203 struct cx25821_subid {
210 struct cx25821_dev *dev;
215 struct i2c_adapter i2c_adap;
216 struct i2c_algo_bit_data i2c_algo;
217 struct i2c_client i2c_client;
220 /* cx25821 registers used for raw addess */
229 struct cx25821_dmaqueue {
230 struct list_head active;
231 struct list_head queued;
232 struct timer_list timeout;
233 struct btcx_riscmem stopper;
237 struct cx25821_data {
238 struct cx25821_dev *dev;
239 struct sram_channel *channel;
242 struct cx25821_channel {
243 struct v4l2_prio_state prio;
249 struct cx25821_data timeout_data;
251 struct video_device *video_dev;
252 struct cx25821_dmaqueue vidq;
254 struct sram_channel *sram_channels;
260 int use_cif_resolution;
265 struct list_head devlist;
267 struct v4l2_device v4l2_dev;
271 unsigned char pci_rev, pci_lat;
272 int pci_bus, pci_slot;
281 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
282 struct cx25821_i2c i2c_bus[3];
287 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
298 unsigned int tuner_type;
299 unsigned char tuner_addr;
300 unsigned int radio_type;
301 unsigned char radio_addr;
302 unsigned int has_radio;
303 unsigned int videc_type;
304 unsigned char videc_addr;
305 unsigned short _max_num_decoders;
307 /* Analog Audio Upstream */
308 int _audio_is_running;
309 int _audiopixel_format;
310 int _is_first_audio_frame;
311 int _audiofile_status;
312 int _audio_lines_count;
313 int _audioframe_count;
314 int _audio_upstream_channel;
315 int _last_index_irq; /* The last interrupt index processed. */
317 __le32 *_risc_audio_jmp_addr;
318 __le32 *_risc_virt_start_addr;
319 __le32 *_risc_virt_addr;
320 dma_addr_t _risc_phys_addr;
321 dma_addr_t _risc_phys_start_addr;
323 unsigned int _audiorisc_size;
324 unsigned int _audiodata_buf_size;
325 __le32 *_audiodata_buf_virt_addr;
326 dma_addr_t _audiodata_buf_phys_addr;
327 char *_audiofilename;
331 struct video_device *vbi_dev;
332 struct video_device *radio_dev;
333 struct video_device *ioctl_dev;
346 int _channel_upstream_select;
347 unsigned int _risc_size;
349 __le32 *_dma_virt_start_addr;
350 __le32 *_dma_virt_addr;
351 dma_addr_t _dma_phys_addr;
352 dma_addr_t _dma_phys_start_addr;
354 unsigned int _data_buf_size;
355 __le32 *_data_buf_virt_addr;
356 dma_addr_t _data_buf_phys_addr;
362 int _pixel_format_ch2;
363 int _is_first_frame_ch2;
365 int _file_status_ch2;
366 int _lines_count_ch2;
367 int _frame_count_ch2;
368 int _channel2_upstream_select;
369 unsigned int _risc_size_ch2;
371 __le32 *_dma_virt_start_addr_ch2;
372 __le32 *_dma_virt_addr_ch2;
373 dma_addr_t _dma_phys_addr_ch2;
374 dma_addr_t _dma_phys_start_addr_ch2;
376 unsigned int _data_buf_size_ch2;
377 __le32 *_data_buf_virt_addr_ch2;
378 dma_addr_t _data_buf_phys_addr_ch2;
380 char *_defaultname_ch2;
382 /* MPEG Encoder ONLY settings */
384 struct cx2341x_mpeg_params mpeg_params;
385 struct video_device *v4l_device;
386 atomic_t v4l_reader_count;
387 struct cx25821_tvnorm encodernorm;
389 u32 upstream_riscbuf_size;
390 u32 upstream_databuf_size;
391 u32 upstream_riscbuf_size_ch2;
392 u32 upstream_databuf_size_ch2;
393 u32 audio_upstream_riscbuf_size;
394 u32 audio_upstream_databuf_size;
397 int _audioframe_index;
398 struct workqueue_struct *_irq_queues;
399 struct work_struct _irq_work_entry;
400 struct workqueue_struct *_irq_queues_ch2;
401 struct work_struct _irq_work_entry_ch2;
402 struct workqueue_struct *_irq_audio_queues;
403 struct work_struct _audio_work_entry;
404 char *input_filename;
405 char *input_filename_ch2;
406 int _frame_index_ch2;
408 char *vid_stdname_ch2;
409 int pixel_format_ch2;
410 int channel_select_ch2;
412 char *input_audiofilename;
420 struct upstream_user_struct {
421 char *input_filename;
428 struct downstream_user_struct {
431 int cif_resolution_enable;
439 extern struct upstream_user_struct *up_data;
441 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
443 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
446 #define cx25821_call_all(dev, o, f, args...) \
447 v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
449 extern struct list_head cx25821_devlist;
450 extern struct mutex cx25821_devlist_mutex;
452 extern struct cx25821_board cx25821_boards[];
453 extern struct cx25821_subid cx25821_subids[];
455 #define SRAM_CH00 0 /* Video A */
456 #define SRAM_CH01 1 /* Video B */
457 #define SRAM_CH02 2 /* Video C */
458 #define SRAM_CH03 3 /* Video D */
459 #define SRAM_CH04 4 /* Video E */
460 #define SRAM_CH05 5 /* Video F */
461 #define SRAM_CH06 6 /* Video G */
462 #define SRAM_CH07 7 /* Video H */
464 #define SRAM_CH08 8 /* Audio A */
465 #define SRAM_CH09 9 /* Video Upstream I */
466 #define SRAM_CH10 10 /* Video Upstream J */
467 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */
469 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09
470 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10
471 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11
472 #define VIDEO_IOCTL_CH 11
474 struct sram_channel {
497 /* For Upstream Video */
508 extern struct sram_channel cx25821_sram_channels[];
510 #define STATUS_SUCCESS 0
511 #define STATUS_UNSUCCESSFUL -1
513 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2))
514 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2))
516 #define cx_andor(reg, mask, value) \
517 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
518 ((value) & (mask)), dev->lmmio+((reg)>>2))
520 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit))
521 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0)
523 #define Set_GPIO_Bit(Bit) (1 << Bit)
524 #define Clear_GPIO_Bit(Bit) (~(1 << Bit))
526 #define CX25821_ERR(fmt, args...) \
527 pr_err("(%d): " fmt, dev->board, ##args)
528 #define CX25821_WARN(fmt, args...) \
529 pr_warn("(%d): " fmt, dev->board, ##args)
530 #define CX25821_INFO(fmt, args...) \
531 pr_info("(%d): " fmt, dev->board, ##args)
533 extern int cx25821_i2c_register(struct cx25821_i2c *bus);
534 extern void cx25821_card_setup(struct cx25821_dev *dev);
535 extern int cx25821_ir_init(struct cx25821_dev *dev);
536 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
537 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
538 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
539 extern void cx25821_gpio_init(struct cx25821_dev *dev);
540 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
541 int pin_number, int pin_logic_value);
543 extern int medusa_video_init(struct cx25821_dev *dev);
544 extern int medusa_set_videostandard(struct cx25821_dev *dev);
545 extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
547 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
549 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
551 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
552 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
555 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
556 struct sram_channel *ch, unsigned int bpl,
559 extern int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
560 struct scatterlist *sglist,
561 unsigned int top_offset,
562 unsigned int bottom_offset,
564 unsigned int padding, unsigned int lines);
565 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
566 struct btcx_riscmem *risc,
567 struct scatterlist *sglist,
569 unsigned int lines, unsigned int lpi);
570 extern void cx25821_free_buffer(struct videobuf_queue *q,
571 struct cx25821_buffer *buf);
572 extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
573 u32 reg, u32 mask, u32 value);
574 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
575 struct sram_channel *ch);
576 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
577 struct sram_channel *ch);
579 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
580 extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
581 int len, u32 bits, u32 mask);
582 extern void cx25821_dev_unregister(struct cx25821_dev *dev);
583 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
584 struct sram_channel *ch,
585 unsigned int bpl, u32 risc);
587 extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev,
588 int channel_select, int pixel_format);
589 extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev,
590 int channel_select, int pixel_format);
591 extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
593 extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev);
594 extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev);
595 extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
596 extern void cx25821_start_upstream_video_ch1(struct cx25821_dev *dev,
597 struct upstream_user_struct
599 extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev,
600 struct upstream_user_struct
602 extern void cx25821_start_upstream_audio(struct cx25821_dev *dev,
603 struct upstream_user_struct *up_data);
604 extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev);
605 extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev);
606 extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
607 extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
608 struct sram_channel *ch,
609 unsigned int bpl, u32 risc);
610 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
612 extern void cx25821_videoioctl_unregister(struct cx25821_dev *dev);
613 extern struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
615 struct video_device *template,