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/v4l2-ctrls.h>
37 #include <media/videobuf-dma-sg.h>
39 #include "btcx-risc.h"
40 #include "cx25821-reg.h"
41 #include "cx25821-medusa-reg.h"
42 #include "cx25821-sram.h"
43 #include "cx25821-audio.h"
45 #include <linux/version.h>
46 #include <linux/mutex.h>
48 #define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
51 #define NO_SYNC_LINE (-1U)
53 #define CX25821_MAXBOARDS 2
55 #define LINE_SIZE_D1 1440
57 /* Number of decoders and encoders */
58 #define MAX_DECODERS 8
59 #define MAX_ENCODERS 2
60 #define QUAD_DECODERS 4
61 #define MAX_CAMERAS 16
63 /* Max number of inputs by card */
64 #define MAX_CX25821_INPUT 8
65 #define RESOURCE_VIDEO0 1
66 #define RESOURCE_VIDEO1 2
67 #define RESOURCE_VIDEO2 4
68 #define RESOURCE_VIDEO3 8
69 #define RESOURCE_VIDEO4 16
70 #define RESOURCE_VIDEO5 32
71 #define RESOURCE_VIDEO6 64
72 #define RESOURCE_VIDEO7 128
73 #define RESOURCE_VIDEO8 256
74 #define RESOURCE_VIDEO9 512
75 #define RESOURCE_VIDEO10 1024
76 #define RESOURCE_VIDEO11 2048
78 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
80 #define UNKNOWN_BOARD 0
81 #define CX25821_BOARD 1
83 /* Currently supported by the driver */
84 #define CX25821_NORMS (\
85 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \
86 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \
87 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \
90 #define CX25821_BOARD_CONEXANT_ATHENA10 1
91 #define MAX_VID_CHANNEL_NUM 12
92 #define VID_CHANNEL_NUM 8
96 u32 fourcc; /* v4l2 format id */
102 struct cx25821_tvnorm {
109 enum cx25821_src_sel_type {
110 CX25821_SRC_SEL_EXT_656_VIDEO = 0,
111 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
114 /* buffer for one video frame */
115 struct cx25821_buffer {
116 /* common v4l buffer stuff -- must be first */
117 struct videobuf_buffer vb;
119 /* cx25821 specific */
121 struct btcx_riscmem risc;
122 const struct cx25821_fmt *fmt;
127 CX25821_UNDEFINED = 0,
132 struct cx25821_board {
142 struct cx25821_dev *dev;
147 struct i2c_adapter i2c_adap;
148 struct i2c_client i2c_client;
151 /* cx25821 registers used for raw addess */
160 struct cx25821_dmaqueue {
161 struct list_head active;
162 struct list_head queued;
163 struct timer_list timeout;
164 struct btcx_riscmem stopper;
168 struct cx25821_data {
169 struct cx25821_dev *dev;
170 const struct sram_channel *channel;
175 struct cx25821_channel {
177 struct cx25821_dev *dev;
178 struct v4l2_fh *streaming_fh;
180 struct v4l2_ctrl_handler hdl;
181 struct cx25821_data timeout_data;
183 struct video_device vdev;
184 struct cx25821_dmaqueue dma_vidq;
185 struct videobuf_queue vidq;
187 const struct sram_channel *sram_channels;
189 const struct cx25821_fmt *fmt;
190 unsigned int width, height;
192 int use_cif_resolution;
199 struct v4l2_device v4l2_dev;
203 unsigned char pci_rev, pci_lat;
204 int pci_bus, pci_slot;
210 /* used by cx25821-alsa */
211 struct snd_card *card;
215 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
216 struct cx25821_i2c i2c_bus[3];
221 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
230 unsigned short _max_num_decoders;
232 /* Analog Audio Upstream */
233 int _audio_is_running;
234 int _audiopixel_format;
235 int _is_first_audio_frame;
236 int _audiofile_status;
237 int _audio_lines_count;
238 int _audioframe_count;
239 int _audio_upstream_channel;
240 int _last_index_irq; /* The last interrupt index processed. */
242 __le32 *_risc_audio_jmp_addr;
243 __le32 *_risc_virt_start_addr;
244 __le32 *_risc_virt_addr;
245 dma_addr_t _risc_phys_addr;
246 dma_addr_t _risc_phys_start_addr;
248 unsigned int _audiorisc_size;
249 unsigned int _audiodata_buf_size;
250 __le32 *_audiodata_buf_virt_addr;
251 dma_addr_t _audiodata_buf_phys_addr;
252 char *_audiofilename;
266 int _channel_upstream_select;
267 unsigned int _risc_size;
269 __le32 *_dma_virt_start_addr;
270 __le32 *_dma_virt_addr;
271 dma_addr_t _dma_phys_addr;
272 dma_addr_t _dma_phys_start_addr;
274 unsigned int _data_buf_size;
275 __le32 *_data_buf_virt_addr;
276 dma_addr_t _data_buf_phys_addr;
282 int _pixel_format_ch2;
283 int _is_first_frame_ch2;
285 int _file_status_ch2;
286 int _lines_count_ch2;
287 int _frame_count_ch2;
288 int _channel2_upstream_select;
289 unsigned int _risc_size_ch2;
291 __le32 *_dma_virt_start_addr_ch2;
292 __le32 *_dma_virt_addr_ch2;
293 dma_addr_t _dma_phys_addr_ch2;
294 dma_addr_t _dma_phys_start_addr_ch2;
296 unsigned int _data_buf_size_ch2;
297 __le32 *_data_buf_virt_addr_ch2;
298 dma_addr_t _data_buf_phys_addr_ch2;
300 char *_defaultname_ch2;
302 u32 upstream_riscbuf_size;
303 u32 upstream_databuf_size;
304 u32 upstream_riscbuf_size_ch2;
305 u32 upstream_databuf_size_ch2;
306 u32 audio_upstream_riscbuf_size;
307 u32 audio_upstream_databuf_size;
310 int _audioframe_index;
311 struct workqueue_struct *_irq_queues;
312 struct work_struct _irq_work_entry;
313 struct workqueue_struct *_irq_queues_ch2;
314 struct work_struct _irq_work_entry_ch2;
315 struct workqueue_struct *_irq_audio_queues;
316 struct work_struct _audio_work_entry;
317 char *input_filename;
318 char *input_filename_ch2;
319 int _frame_index_ch2;
321 char *vid_stdname_ch2;
322 int pixel_format_ch2;
323 int channel_select_ch2;
325 char *input_audiofilename;
332 struct upstream_user_struct {
333 char *input_filename;
340 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
342 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
345 extern struct cx25821_board cx25821_boards[];
347 #define SRAM_CH00 0 /* Video A */
348 #define SRAM_CH01 1 /* Video B */
349 #define SRAM_CH02 2 /* Video C */
350 #define SRAM_CH03 3 /* Video D */
351 #define SRAM_CH04 4 /* Video E */
352 #define SRAM_CH05 5 /* Video F */
353 #define SRAM_CH06 6 /* Video G */
354 #define SRAM_CH07 7 /* Video H */
356 #define SRAM_CH08 8 /* Audio A */
357 #define SRAM_CH09 9 /* Video Upstream I */
358 #define SRAM_CH10 10 /* Video Upstream J */
359 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */
361 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09
362 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10
363 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11
365 struct sram_channel {
388 /* For Upstream Video */
400 extern const struct sram_channel cx25821_sram_channels[];
402 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2))
403 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2))
405 #define cx_andor(reg, mask, value) \
406 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
407 ((value) & (mask)), dev->lmmio+((reg)>>2))
409 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit))
410 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0)
412 #define Set_GPIO_Bit(Bit) (1 << Bit)
413 #define Clear_GPIO_Bit(Bit) (~(1 << Bit))
415 #define CX25821_ERR(fmt, args...) \
416 pr_err("(%d): " fmt, dev->board, ##args)
417 #define CX25821_WARN(fmt, args...) \
418 pr_warn("(%d): " fmt, dev->board, ##args)
419 #define CX25821_INFO(fmt, args...) \
420 pr_info("(%d): " fmt, dev->board, ##args)
422 extern int cx25821_i2c_register(struct cx25821_i2c *bus);
423 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
424 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
425 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
426 extern void cx25821_gpio_init(struct cx25821_dev *dev);
427 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
428 int pin_number, int pin_logic_value);
430 extern int medusa_video_init(struct cx25821_dev *dev);
431 extern int medusa_set_videostandard(struct cx25821_dev *dev);
432 extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
434 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
436 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
438 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
439 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
442 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
443 const struct sram_channel *ch, unsigned int bpl,
446 extern int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
447 struct scatterlist *sglist,
448 unsigned int top_offset,
449 unsigned int bottom_offset,
451 unsigned int padding, unsigned int lines);
452 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
453 struct btcx_riscmem *risc,
454 struct scatterlist *sglist,
456 unsigned int lines, unsigned int lpi);
457 extern void cx25821_free_buffer(struct videobuf_queue *q,
458 struct cx25821_buffer *buf);
459 extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
460 u32 reg, u32 mask, u32 value);
461 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
462 const struct sram_channel *ch);
463 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
464 const struct sram_channel *ch);
466 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
467 extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
468 int len, u32 bits, u32 mask);
469 extern void cx25821_dev_unregister(struct cx25821_dev *dev);
470 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
471 const struct sram_channel *ch,
472 unsigned int bpl, u32 risc);
474 extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev,
475 int channel_select, int pixel_format);
476 extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev,
477 int channel_select, int pixel_format);
478 extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
480 extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev);
481 extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev);
482 extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
483 extern void cx25821_start_upstream_video_ch1(struct cx25821_dev *dev,
484 struct upstream_user_struct
486 extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev,
487 struct upstream_user_struct
489 extern void cx25821_start_upstream_audio(struct cx25821_dev *dev,
490 struct upstream_user_struct *up_data);
491 extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev);
492 extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev);
493 extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
494 extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
495 const struct sram_channel *ch,
496 unsigned int bpl, u32 risc);
497 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,