1/*
2 *  Driver for the Conexant CX25821 PCIe bridge
3 *
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
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/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>
34
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>
41
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"
48
49#include <linux/version.h>
50#include <linux/mutex.h>
51
52#define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
53
54#define UNSET (-1U)
55#define NO_SYNC_LINE (-1U)
56
57#define CX25821_MAXBOARDS 2
58
59#define TRUE    1
60#define FALSE   0
61#define LINE_SIZE_D1    1440
62
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
68
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
85
86#define BUFFER_TIMEOUT     (HZ)	/* 0.5 seconds */
87
88#define UNKNOWN_BOARD        0
89#define CX25821_BOARD        1
90
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    | \
96	V4L2_STD_PAL_Nc)
97
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
102
103struct cx25821_fmt {
104	char *name;
105	u32 fourcc;		/* v4l2 format id */
106	int depth;
107	int flags;
108	u32 cxformat;
109};
110
111struct cx25821_ctrl {
112	struct v4l2_queryctrl v;
113	u32 off;
114	u32 reg;
115	u32 mask;
116	u32 shift;
117};
118
119struct cx25821_tvnorm {
120	char *name;
121	v4l2_std_id id;
122	u32 cxiformat;
123	u32 cxoformat;
124};
125
126struct cx25821_fh {
127	struct cx25821_dev *dev;
128	enum v4l2_buf_type type;
129	int radio;
130	u32 resources;
131
132	enum v4l2_priority prio;
133
134	/* video overlay */
135	struct v4l2_window win;
136	struct v4l2_clip *clips;
137	unsigned int nclips;
138
139	/* video capture */
140	struct cx25821_fmt *fmt;
141	unsigned int width, height;
142	int channel_id;
143
144	/* vbi capture */
145	struct videobuf_queue vidq;
146	struct videobuf_queue vbiq;
147
148	/* H264 Encoder specifics ONLY */
149	struct videobuf_queue mpegq;
150	atomic_t v4l_reading;
151};
152
153enum cx25821_itype {
154	CX25821_VMUX_COMPOSITE = 1,
155	CX25821_VMUX_SVIDEO,
156	CX25821_VMUX_DEBUG,
157	CX25821_RADIO,
158};
159
160enum cx25821_src_sel_type {
161	CX25821_SRC_SEL_EXT_656_VIDEO = 0,
162	CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
163};
164
165/* buffer for one video frame */
166struct cx25821_buffer {
167	/* common v4l buffer stuff -- must be first */
168	struct videobuf_buffer vb;
169
170	/* cx25821 specific */
171	unsigned int bpl;
172	struct btcx_riscmem risc;
173	struct cx25821_fmt *fmt;
174	u32 count;
175};
176
177struct cx25821_input {
178	enum cx25821_itype type;
179	unsigned int vmux;
180	u32 gpio0, gpio1, gpio2, gpio3;
181};
182
183enum port {
184	CX25821_UNDEFINED = 0,
185	CX25821_RAW,
186	CX25821_264
187};
188
189struct cx25821_board {
190	char *name;
191	enum port porta;
192	enum port portb;
193	enum port portc;
194	unsigned int tuner_type;
195	unsigned int radio_type;
196	unsigned char tuner_addr;
197	unsigned char radio_addr;
198
199	u32 clk_freq;
200	struct cx25821_input input[CX25821_NR_INPUT];
201};
202
203struct cx25821_subid {
204	u16 subvendor;
205	u16 subdevice;
206	u32 card;
207};
208
209struct cx25821_i2c {
210	struct cx25821_dev *dev;
211
212	int nr;
213
214	/* i2c i/o */
215	struct i2c_adapter i2c_adap;
216	struct i2c_algo_bit_data i2c_algo;
217	struct i2c_client i2c_client;
218	u32 i2c_rc;
219
220	/* cx25821 registers used for raw addess */
221	u32 i2c_period;
222	u32 reg_ctrl;
223	u32 reg_stat;
224	u32 reg_addr;
225	u32 reg_rdata;
226	u32 reg_wdata;
227};
228
229struct cx25821_dmaqueue {
230	struct list_head active;
231	struct list_head queued;
232	struct timer_list timeout;
233	struct btcx_riscmem stopper;
234	u32 count;
235};
236
237struct cx25821_data {
238	struct cx25821_dev *dev;
239	struct sram_channel *channel;
240};
241
242struct cx25821_channel {
243	struct v4l2_prio_state prio;
244
245	int ctl_bright;
246	int ctl_contrast;
247	int ctl_hue;
248	int ctl_saturation;
249	struct cx25821_data timeout_data;
250
251	struct video_device *video_dev;
252	struct cx25821_dmaqueue vidq;
253
254	struct sram_channel *sram_channels;
255
256	struct mutex lock;
257	int resources;
258
259	int pixel_formats;
260	int use_cif_resolution;
261	int cif_width;
262};
263
264struct cx25821_dev {
265	struct list_head devlist;
266	atomic_t refcount;
267	struct v4l2_device v4l2_dev;
268
269	/* pci stuff */
270	struct pci_dev *pci;
271	unsigned char pci_rev, pci_lat;
272	int pci_bus, pci_slot;
273	u32 base_io_addr;
274	u32 __iomem *lmmio;
275	u8 __iomem *bmmio;
276	int pci_irqmask;
277	int hwrevision;
278
279	u32 clk_freq;
280
281	/* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
282	struct cx25821_i2c i2c_bus[3];
283
284	int nr;
285	struct mutex lock;
286
287	struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
288
289	/* board details */
290	unsigned int board;
291	char name[32];
292
293	/* Analog video */
294	u32 resources;
295	unsigned int input;
296	u32 tvaudio;
297	v4l2_std_id tvnorm;
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;
306
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. */
316
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;
322
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;
328
329	/* V4l */
330	u32 freq;
331	struct video_device *vbi_dev;
332	struct video_device *radio_dev;
333	struct video_device *ioctl_dev;
334
335	spinlock_t slock;
336
337	/* Video Upstream */
338	int _line_size;
339	int _prog_cnt;
340	int _pixel_format;
341	int _is_first_frame;
342	int _is_running;
343	int _file_status;
344	int _lines_count;
345	int _frame_count;
346	int _channel_upstream_select;
347	unsigned int _risc_size;
348
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;
353
354	unsigned int _data_buf_size;
355	__le32 *_data_buf_virt_addr;
356	dma_addr_t _data_buf_phys_addr;
357	char *_filename;
358	char *_defaultname;
359
360	int _line_size_ch2;
361	int _prog_cnt_ch2;
362	int _pixel_format_ch2;
363	int _is_first_frame_ch2;
364	int _is_running_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;
370
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;
375
376	unsigned int _data_buf_size_ch2;
377	__le32 *_data_buf_virt_addr_ch2;
378	dma_addr_t _data_buf_phys_addr_ch2;
379	char *_filename_ch2;
380	char *_defaultname_ch2;
381
382	/* MPEG Encoder ONLY settings */
383	u32 cx23417_mailbox;
384	struct cx2341x_mpeg_params mpeg_params;
385	struct video_device *v4l_device;
386	atomic_t v4l_reader_count;
387	struct cx25821_tvnorm encodernorm;
388
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;
395	int _isNTSC;
396	int _frame_index;
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;
407	int _isNTSC_ch2;
408	char *vid_stdname_ch2;
409	int pixel_format_ch2;
410	int channel_select_ch2;
411	int command_ch2;
412	char *input_audiofilename;
413	char *vid_stdname;
414	int pixel_format;
415	int channel_select;
416	int command;
417	int channel_opened;
418};
419
420struct upstream_user_struct {
421	char *input_filename;
422	char *vid_stdname;
423	int pixel_format;
424	int channel_select;
425	int command;
426};
427
428struct downstream_user_struct {
429	char *vid_stdname;
430	int pixel_format;
431	int cif_resolution_enable;
432	int cif_width;
433	int decoder_select;
434	int command;
435	int reg_address;
436	int reg_data;
437};
438
439extern struct upstream_user_struct *up_data;
440
441static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
442{
443	return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
444}
445
446#define cx25821_call_all(dev, o, f, args...) \
447	v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
448
449extern struct list_head cx25821_devlist;
450extern struct mutex cx25821_devlist_mutex;
451
452extern struct cx25821_board cx25821_boards[];
453extern struct cx25821_subid cx25821_subids[];
454
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 */
463
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 */
468
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
473
474struct sram_channel {
475	char *name;
476	u32 i;
477	u32 cmds_start;
478	u32 ctrl_start;
479	u32 cdt;
480	u32 fifo_start;
481	u32 fifo_size;
482	u32 ptr1_reg;
483	u32 ptr2_reg;
484	u32 cnt1_reg;
485	u32 cnt2_reg;
486	u32 int_msk;
487	u32 int_stat;
488	u32 int_mstat;
489	u32 dma_ctl;
490	u32 gpcnt_ctl;
491	u32 gpcnt;
492	u32 aud_length;
493	u32 aud_cfg;
494	u32 fld_aud_fifo_en;
495	u32 fld_aud_risc_en;
496
497	/* For Upstream Video */
498	u32 vid_fmt_ctl;
499	u32 vid_active_ctl1;
500	u32 vid_active_ctl2;
501	u32 vid_cdt_size;
502
503	u32 vip_ctl;
504	u32 pix_frmt;
505	u32 jumponly;
506	u32 irq_bit;
507};
508extern struct sram_channel cx25821_sram_channels[];
509
510#define STATUS_SUCCESS         0
511#define STATUS_UNSUCCESSFUL    -1
512
513#define cx_read(reg)             readl(dev->lmmio + ((reg)>>2))
514#define cx_write(reg, value)     writel((value), dev->lmmio + ((reg)>>2))
515
516#define cx_andor(reg, mask, value) \
517	writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
518	((value) & (mask)), dev->lmmio+((reg)>>2))
519
520#define cx_set(reg, bit)          cx_andor((reg), (bit), (bit))
521#define cx_clear(reg, bit)        cx_andor((reg), (bit), 0)
522
523#define Set_GPIO_Bit(Bit)                       (1 << Bit)
524#define Clear_GPIO_Bit(Bit)                     (~(1 << Bit))
525
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)
532
533extern int cx25821_i2c_register(struct cx25821_i2c *bus);
534extern void cx25821_card_setup(struct cx25821_dev *dev);
535extern int cx25821_ir_init(struct cx25821_dev *dev);
536extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
537extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
538extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
539extern void cx25821_gpio_init(struct cx25821_dev *dev);
540extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
541					  int pin_number, int pin_logic_value);
542
543extern int medusa_video_init(struct cx25821_dev *dev);
544extern int medusa_set_videostandard(struct cx25821_dev *dev);
545extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
546				  int decoder_select);
547extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
548				 int decoder);
549extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
550			       int decoder);
551extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
552extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
553				 int decoder);
554
555extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
556				      struct sram_channel *ch, unsigned int bpl,
557				      u32 risc);
558
559extern 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,
563			       unsigned int bpl,
564			       unsigned int padding, unsigned int lines);
565extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
566					 struct btcx_riscmem *risc,
567					 struct scatterlist *sglist,
568					 unsigned int bpl,
569					 unsigned int lines, unsigned int lpi);
570extern void cx25821_free_buffer(struct videobuf_queue *q,
571				struct cx25821_buffer *buf);
572extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
573				u32 reg, u32 mask, u32 value);
574extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
575				      struct sram_channel *ch);
576extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
577					    struct sram_channel *ch);
578
579extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
580extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
581				  int len, u32 bits, u32 mask);
582extern void cx25821_dev_unregister(struct cx25821_dev *dev);
583extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
584					    struct sram_channel *ch,
585					    unsigned int bpl, u32 risc);
586
587extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev,
588					int channel_select, int pixel_format);
589extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev,
590					int channel_select, int pixel_format);
591extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
592				       int channel_select);
593extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev);
594extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev);
595extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
596extern void cx25821_start_upstream_video_ch1(struct cx25821_dev *dev,
597					     struct upstream_user_struct
598					     *up_data);
599extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev,
600					     struct upstream_user_struct
601					     *up_data);
602extern void cx25821_start_upstream_audio(struct cx25821_dev *dev,
603					 struct upstream_user_struct *up_data);
604extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev);
605extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev);
606extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
607extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
608					       struct sram_channel *ch,
609					       unsigned int bpl, u32 risc);
610extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
611				     u32 format);
612extern void cx25821_videoioctl_unregister(struct cx25821_dev *dev);
613extern struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
614					      struct pci_dev *pci,
615					      struct video_device *template,
616					      char *type);
617#endif
618