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.
28 #include <linux/pci.h>
29 #include <linux/i2c.h>
30 #include <linux/i2c-algo-bit.h>
31 #include <linux/interrupt.h>
32 #include <linux/delay.h>
33 #include <linux/sched.h>
34 #include <linux/kdev_t.h>
35 #include <linux/smp_lock.h>
37 #include <media/v4l2-common.h>
38 #include <media/v4l2-device.h>
39 #include <media/tuner.h>
40 #include <media/tveeprom.h>
41 #include <media/videobuf-dma-sg.h>
42 #include <media/videobuf-dvb.h>
44 #include "btcx-risc.h"
45 #include "cx25821-reg.h"
46 #include "cx25821-medusa-reg.h"
47 #include "cx25821-sram.h"
48 #include "cx25821-audio.h"
49 #include "media/cx2341x.h"
51 #include <linux/version.h>
52 #include <linux/mutex.h>
54 #define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
57 #define NO_SYNC_LINE (-1U)
59 #define CX25821_MAXBOARDS 2
63 #define LINE_SIZE_D1 1440
65 // Number of decoders and encoders
66 #define MAX_DECODERS 8
67 #define MAX_ENCODERS 2
68 #define QUAD_DECODERS 4
69 #define MAX_CAMERAS 16
71 /* Max number of inputs by card */
72 #define MAX_CX25821_INPUT 8
73 #define INPUT(nr) (&cx25821_boards[dev->board].input[nr])
74 #define RESOURCE_VIDEO0 1
75 #define RESOURCE_VIDEO1 2
76 #define RESOURCE_VIDEO2 4
77 #define RESOURCE_VIDEO3 8
78 #define RESOURCE_VIDEO4 16
79 #define RESOURCE_VIDEO5 32
80 #define RESOURCE_VIDEO6 64
81 #define RESOURCE_VIDEO7 128
82 #define RESOURCE_VIDEO8 256
83 #define RESOURCE_VIDEO9 512
84 #define RESOURCE_VIDEO10 1024
85 #define RESOURCE_VIDEO11 2048
86 #define RESOURCE_VIDEO_IOCTL 4096
89 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
91 #define UNKNOWN_BOARD 0
92 #define CX25821_BOARD 1
94 /* Currently supported by the driver */
95 #define CX25821_NORMS (\
96 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \
97 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \
98 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \
101 #define CX25821_BOARD_CONEXANT_ATHENA10 1
102 #define MAX_VID_CHANNEL_NUM 12
103 #define VID_CHANNEL_NUM 8
107 u32 fourcc; /* v4l2 format id */
113 struct cx25821_ctrl {
114 struct v4l2_queryctrl v;
121 struct cx25821_tvnorm {
129 struct cx25821_dev *dev;
130 enum v4l2_buf_type type;
134 enum v4l2_priority prio;
137 struct v4l2_window win;
138 struct v4l2_clip *clips;
142 struct cx25821_fmt *fmt;
143 unsigned int width, height;
146 struct videobuf_queue vidq;
147 struct videobuf_queue vbiq;
149 /* H264 Encoder specifics ONLY */
150 struct videobuf_queue mpegq;
151 atomic_t v4l_reading;
155 CX25821_VMUX_COMPOSITE = 1,
161 enum cx25821_src_sel_type {
162 CX25821_SRC_SEL_EXT_656_VIDEO = 0,
163 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
166 /* buffer for one video frame */
167 struct cx25821_buffer {
168 /* common v4l buffer stuff -- must be first */
169 struct videobuf_buffer vb;
171 /* cx25821 specific */
173 struct btcx_riscmem risc;
174 struct cx25821_fmt *fmt;
178 struct cx25821_input {
179 enum cx25821_itype type;
181 u32 gpio0, gpio1, gpio2, gpio3;
185 CX25821_UNDEFINED = 0,
190 struct cx25821_board {
192 port_t porta, portb, portc;
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[2];
202 struct cx25821_subid {
209 struct cx25821_dev *dev;
214 struct i2c_adapter i2c_adap;
215 struct i2c_algo_bit_data i2c_algo;
216 struct i2c_client i2c_client;
219 /* cx25821 registers used for raw addess */
228 struct cx25821_dmaqueue {
229 struct list_head active;
230 struct list_head queued;
231 struct timer_list timeout;
232 struct btcx_riscmem stopper;
236 struct cx25821_data {
237 struct cx25821_dev *dev;
238 struct sram_channel *channel;
242 struct list_head devlist;
244 struct v4l2_device v4l2_dev;
246 struct v4l2_prio_state prio;
250 unsigned char pci_rev, pci_lat;
251 int pci_bus, pci_slot;
260 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
261 struct cx25821_i2c i2c_bus[3];
270 /* sram configuration */
271 struct sram_channel *sram_channels;
278 unsigned int tuner_type;
279 unsigned char tuner_addr;
280 unsigned int radio_type;
281 unsigned char radio_addr;
282 unsigned int has_radio;
283 unsigned int videc_type;
284 unsigned char videc_addr;
285 unsigned short _max_num_decoders;
292 struct cx25821_data timeout_data[MAX_VID_CHANNEL_NUM];
294 /* Analog Audio Upstream */
295 int _audio_is_running;
296 int _audiopixel_format;
297 int _is_first_audio_frame;
298 int _audiofile_status;
299 int _audio_lines_count;
300 int _audioframe_count;
301 int _audio_upstream_channel_select;
302 int _last_index_irq; //The last interrupt index processed.
304 __le32 * _risc_audio_jmp_addr;
305 __le32 * _risc_virt_start_addr;
306 __le32 * _risc_virt_addr;
307 dma_addr_t _risc_phys_addr;
308 dma_addr_t _risc_phys_start_addr;
310 unsigned int _audiorisc_size;
311 unsigned int _audiodata_buf_size;
312 __le32 * _audiodata_buf_virt_addr;
313 dma_addr_t _audiodata_buf_phys_addr;
314 char *_audiofilename;
318 struct video_device *video_dev[MAX_VID_CHANNEL_NUM];
319 struct video_device *vbi_dev;
320 struct video_device *radio_dev;
321 struct video_device *ioctl_dev;
323 struct cx25821_dmaqueue vidq[MAX_VID_CHANNEL_NUM];
335 int _channel_upstream_select;
336 unsigned int _risc_size;
338 __le32 * _dma_virt_start_addr;
339 __le32 * _dma_virt_addr;
340 dma_addr_t _dma_phys_addr;
341 dma_addr_t _dma_phys_start_addr;
343 unsigned int _data_buf_size;
344 __le32 * _data_buf_virt_addr;
345 dma_addr_t _data_buf_phys_addr;
352 int _pixel_format_ch2;
353 int _is_first_frame_ch2;
355 int _file_status_ch2;
356 int _lines_count_ch2;
357 int _frame_count_ch2;
358 int _channel2_upstream_select;
359 unsigned int _risc_size_ch2;
361 __le32 * _dma_virt_start_addr_ch2;
362 __le32 * _dma_virt_addr_ch2;
363 dma_addr_t _dma_phys_addr_ch2;
364 dma_addr_t _dma_phys_start_addr_ch2;
366 unsigned int _data_buf_size_ch2;
367 __le32 * _data_buf_virt_addr_ch2;
368 dma_addr_t _data_buf_phys_addr_ch2;
369 char * _filename_ch2;
370 char * _defaultname_ch2;
372 /* MPEG Encoder ONLY settings */
374 struct cx2341x_mpeg_params mpeg_params;
375 struct video_device *v4l_device;
376 atomic_t v4l_reader_count;
377 struct cx25821_tvnorm encodernorm;
379 u32 upstream_riscbuf_size;
380 u32 upstream_databuf_size;
381 u32 upstream_riscbuf_size_ch2;
382 u32 upstream_databuf_size_ch2;
383 u32 audio_upstream_riscbuf_size;
384 u32 audio_upstream_databuf_size;
387 int _audioframe_index;
388 struct workqueue_struct * _irq_queues;
389 struct work_struct _irq_work_entry;
390 struct workqueue_struct * _irq_queues_ch2;
391 struct work_struct _irq_work_entry_ch2;
392 struct workqueue_struct * _irq_audio_queues;
393 struct work_struct _audio_work_entry;
394 char *input_filename;
395 char *input_filename_ch2;
396 int _frame_index_ch2;
398 char *vid_stdname_ch2;
399 int pixel_format_ch2;
400 int channel_select_ch2;
402 char *input_audiofilename;
407 int pixel_formats[VID_CHANNEL_NUM];
408 int use_cif_resolution[VID_CHANNEL_NUM];
409 int cif_width[VID_CHANNEL_NUM];
414 struct upstream_user_struct {
415 char *input_filename;
422 struct downstream_user_struct {
425 int cif_resolution_enable;
433 extern struct upstream_user_struct *up_data;
435 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
437 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
440 #define cx25821_call_all(dev, o, f, args...) \
441 v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
443 extern struct list_head cx25821_devlist;
444 extern struct cx25821_board cx25821_boards[];
445 extern struct cx25821_subid cx25821_subids[];
447 #define SRAM_CH00 0 /* Video A */
448 #define SRAM_CH01 1 /* Video B */
449 #define SRAM_CH02 2 /* Video C */
450 #define SRAM_CH03 3 /* Video D */
451 #define SRAM_CH04 4 /* Video E */
452 #define SRAM_CH05 5 /* Video F */
453 #define SRAM_CH06 6 /* Video G */
454 #define SRAM_CH07 7 /* Video H */
456 #define SRAM_CH08 8 /* Audio A */
457 #define SRAM_CH09 9 /* Video Upstream I */
458 #define SRAM_CH10 10 /* Video Upstream J */
459 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */
463 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09
464 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10
465 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11
466 #define VIDEO_IOCTL_CH 11
468 struct sram_channel {
502 extern struct sram_channel cx25821_sram_channels[];
504 #define STATUS_SUCCESS 0
505 #define STATUS_UNSUCCESSFUL -1
507 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2))
508 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2))
510 #define cx_andor(reg, mask, value) \
511 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
512 ((value) & (mask)), dev->lmmio+((reg)>>2))
514 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit))
515 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0)
517 #define Set_GPIO_Bit(Bit) (1 << Bit)
518 #define Clear_GPIO_Bit(Bit) (~(1 << Bit))
520 #define CX25821_ERR(fmt, args...) printk(KERN_ERR "cx25821(%d): " fmt, dev->board, ## args)
521 #define CX25821_WARN(fmt, args...) printk(KERN_WARNING "cx25821(%d): " fmt, dev->board , ## args)
522 #define CX25821_INFO(fmt, args...) printk(KERN_INFO "cx25821(%d): " fmt, dev->board , ## args)
524 extern int cx25821_i2c_register(struct cx25821_i2c *bus);
525 extern void cx25821_card_setup(struct cx25821_dev *dev);
526 extern int cx25821_ir_init(struct cx25821_dev *dev);
527 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
528 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
529 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
530 extern void cx25821_gpio_init(struct cx25821_dev *dev);
531 extern void cx25821_set_gpiopin_direction( struct cx25821_dev *dev,
533 int pin_logic_value);
535 extern int medusa_video_init(struct cx25821_dev *dev);
536 extern int medusa_set_videostandard(struct cx25821_dev *dev);
537 extern void medusa_set_resolution(struct cx25821_dev *dev, int width, int decoder_select);
538 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness, int decoder);
539 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast, int decoder);
540 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
541 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation, int decoder);
543 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev, struct sram_channel *ch, unsigned int bpl, u32 risc);
545 extern int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
546 struct scatterlist *sglist,
547 unsigned int top_offset,
548 unsigned int bottom_offset,
550 unsigned int padding,
552 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
553 struct btcx_riscmem *risc,
554 struct scatterlist *sglist,
558 extern void cx25821_free_buffer(struct videobuf_queue *q, struct cx25821_buffer *buf);
559 extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,u32 reg, u32 mask, u32 value);
560 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev, struct sram_channel *ch);
561 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev, struct sram_channel *ch);
564 extern struct cx25821_dev* cx25821_dev_get(struct pci_dev *pci);
565 extern void cx25821_print_irqbits(char *name, char *tag, char **strings, int len, u32 bits, u32 mask);
566 extern void cx25821_dev_unregister(struct cx25821_dev *dev);
567 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
568 struct sram_channel *ch,
569 unsigned int bpl, u32 risc);
571 extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select, int pixel_format);
572 extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select, int pixel_format);
573 extern int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select);
574 extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev);
575 extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev);
576 extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
577 extern void cx25821_start_upstream_video_ch1(struct cx25821_dev *dev, struct upstream_user_struct *up_data);
578 extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev, struct upstream_user_struct *up_data);
579 extern void cx25821_start_upstream_audio(struct cx25821_dev *dev, struct upstream_user_struct *up_data);
580 extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev);
581 extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev);
582 extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
583 extern int cx25821_sram_channel_setup_upstream( struct cx25821_dev *dev, struct sram_channel *ch, unsigned int bpl, u32 risc);
584 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel, u32 format);
585 extern void cx25821_videoioctl_unregister(struct cx25821_dev *dev);
586 extern struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
588 struct video_device *template,