2 em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
4 Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
5 Ludovico Cavedon <cavedon@sssup.it>
6 Mauro Carvalho Chehab <mchehab@infradead.org>
8 Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <linux/videodev2.h>
29 #include <media/videobuf-vmalloc.h>
31 #include <linux/i2c.h>
32 #include <linux/mutex.h>
33 #include <media/ir-kbd-i2c.h>
34 #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
35 #include <media/videobuf-dvb.h>
37 #include "tuner-xc2028.h"
38 #include "em28xx-reg.h"
40 /* Boards supported by driver */
41 #define EM2800_BOARD_UNKNOWN 0
42 #define EM2820_BOARD_UNKNOWN 1
43 #define EM2820_BOARD_TERRATEC_CINERGY_250 2
44 #define EM2820_BOARD_PINNACLE_USB_2 3
45 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
46 #define EM2820_BOARD_MSI_VOX_USB_2 5
47 #define EM2800_BOARD_TERRATEC_CINERGY_200 6
48 #define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
49 #define EM2800_BOARD_KWORLD_USB2800 8
50 #define EM2820_BOARD_PINNACLE_DVC_90 9
51 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
52 #define EM2880_BOARD_TERRATEC_HYBRID_XS 11
53 #define EM2820_BOARD_KWORLD_PVRTV2800RF 12
54 #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
55 #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
56 #define EM2800_BOARD_VGEAR_POCKETTV 15
57 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16
58 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17
59 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
60 #define EM2860_BOARD_POINTNIX_INTRAORAL_CAMERA 19
61 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20
62 #define EM2800_BOARD_GRABBEEX_USB2800 21
63 #define EM2750_BOARD_UNKNOWN 22
64 #define EM2750_BOARD_DLCW_130 23
65 #define EM2820_BOARD_DLINK_USB_TV 24
66 #define EM2820_BOARD_GADMEI_UTV310 25
67 #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26
68 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27
69 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
70 #define EM2820_BOARD_PINNACLE_DVC_100 29
71 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30
72 #define EM2821_BOARD_USBGEAR_VD204 31
73 #define EM2821_BOARD_SUPERCOMP_USB_2 32
74 #define EM2821_BOARD_PROLINK_PLAYTV_USB2 33
75 #define EM2860_BOARD_TERRATEC_HYBRID_XS 34
76 #define EM2860_BOARD_TYPHOON_DVD_MAKER 35
77 #define EM2860_BOARD_NETGMBH_CAM 36
78 #define EM2860_BOARD_GADMEI_UTV330 37
79 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38
80 #define EM2861_BOARD_KWORLD_PVRTV_300U 39
81 #define EM2861_BOARD_PLEXTOR_PX_TV100U 40
82 #define EM2870_BOARD_KWORLD_350U 41
83 #define EM2870_BOARD_KWORLD_355U 42
84 #define EM2870_BOARD_TERRATEC_XS 43
85 #define EM2870_BOARD_TERRATEC_XS_MT2060 44
86 #define EM2870_BOARD_PINNACLE_PCTV_DVB 45
87 #define EM2870_BOARD_COMPRO_VIDEOMATE 46
88 #define EM2880_BOARD_KWORLD_DVB_305U 47
89 #define EM2880_BOARD_KWORLD_DVB_310U 48
90 #define EM2880_BOARD_MSI_DIGIVOX_AD 49
91 #define EM2880_BOARD_MSI_DIGIVOX_AD_II 50
92 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51
93 #define EM2881_BOARD_DNT_DA2_HYBRID 52
94 #define EM2881_BOARD_PINNACLE_HYBRID_PRO 53
95 #define EM2882_BOARD_KWORLD_VS_DVBT 54
96 #define EM2882_BOARD_TERRATEC_HYBRID_XS 55
97 #define EM2882_BOARD_PINNACLE_HYBRID_PRO 56
98 #define EM2883_BOARD_KWORLD_HYBRID_A316 57
99 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58
100 #define EM2874_BOARD_PINNACLE_PCTV_80E 59
102 /* Limits minimum and default number of buffers */
103 #define EM28XX_MIN_BUF 4
104 #define EM28XX_DEF_BUF 8
106 /*Limits the max URB message size */
107 #define URB_MAX_CTRL_SIZE 80
109 /* Params for validated field */
110 #define EM28XX_BOARD_NOT_VALIDATED 1
111 #define EM28XX_BOARD_VALIDATED 0
113 /* maximum number of em28xx boards */
114 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
116 /* maximum number of frames that can be queued */
117 #define EM28XX_NUM_FRAMES 5
118 /* number of frames that get used for v4l2_read() */
119 #define EM28XX_NUM_READ_FRAMES 2
121 /* number of buffers for isoc transfers */
122 #define EM28XX_NUM_BUFS 5
124 /* number of packets for each buffer
125 windows requests only 40 packets .. so we better do the same
126 this is what I found out for all alternate numbers there!
128 #define EM28XX_NUM_PACKETS 40
130 /* default alternate; 0 means choose the best */
131 #define EM28XX_PINOUT 0
133 #define EM28XX_INTERLACED_DEFAULT 1
136 #define (use usbview if you want to get the other alternate number infos)
138 #define alternate number 2
139 #define Endpoint Address: 82
143 Max Packet Size: 1448
152 Max Packet Size: 3072
156 /* time to wait when stopping the isoc transfer */
157 #define EM28XX_URB_TIMEOUT msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
159 /* time in msecs to wait for i2c writes to finish */
160 #define EM2800_I2C_WRITE_TIMEOUT 20
163 EM28XX_MODE_UNDEFINED,
168 enum em28xx_stream_state {
176 struct em28xx_usb_isoc_ctl {
177 /* max packet size of isoc transaction */
180 /* number of allocated urbs */
183 /* urb for isoc transfers */
186 /* transfer buffers for isoc transfer */
187 char **transfer_buffer;
189 /* Last buffer command and region */
191 int pos, size, pktsize;
193 /* Last field: ODD or EVEN? */
196 /* Stores incomplete commands */
200 /* Stores already requested buffers */
201 struct em28xx_buffer *buf;
203 /* Stores the number of received fields */
206 /* isoc urb callback */
207 int (*isoc_copy) (struct em28xx *dev, struct urb *urb);
213 u32 fourcc; /* v4l2 format id */
216 /* buffer for one video frame */
217 struct em28xx_buffer {
218 /* common v4l buffer stuff -- must be first */
219 struct videobuf_buffer vb;
221 struct list_head frame;
226 struct em28xx_dmaqueue {
227 struct list_head active;
228 struct list_head queued;
230 wait_queue_head_t wq;
232 /* Counters to control buffer fill */
237 enum em28xx_io_method {
245 #define MAX_EM28XX_INPUT 4
246 enum enum28xx_itype {
247 EM28XX_VMUX_COMPOSITE1 = 1,
248 EM28XX_VMUX_COMPOSITE2,
249 EM28XX_VMUX_COMPOSITE3,
250 EM28XX_VMUX_COMPOSITE4,
252 EM28XX_VMUX_TELEVISION,
259 enum em28xx_ac97_mode {
262 EM28XX_AC97_SIGMATEL,
266 struct em28xx_audio_mode {
267 enum em28xx_ac97_mode ac97;
272 unsigned int has_audio:1;
274 unsigned int i2s_3rates:1;
275 unsigned int i2s_5rates:1;
278 /* em28xx has two audio inputs: tuner and line in.
279 However, on most devices, an auxiliary AC97 codec device is used.
280 The AC97 device may have several different inputs and outputs,
281 depending on their model. So, it is possible to use AC97 mixer to
282 address more than two different entries.
285 /* This is the only entry for em28xx tuner input */
286 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */
288 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */
290 /* Some less-common mixer setups */
291 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */
300 EM28XX_AOUT_MASTER = 1 << 0,
301 EM28XX_AOUT_LINE = 1 << 1,
302 EM28XX_AOUT_MONO = 1 << 2,
303 EM28XX_AOUT_LFE = 1 << 3,
304 EM28XX_AOUT_SURR = 1 << 4,
307 struct em28xx_input {
308 enum enum28xx_itype type;
310 enum em28xx_amux amux;
311 enum em28xx_aout aout;
314 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
316 enum em28xx_decoder {
323 struct em28xx_reg_seq {
325 unsigned char val, mask;
329 struct em28xx_board {
336 unsigned int tda9887_conf;
338 unsigned int is_em2800:1;
339 unsigned int has_msp34xx:1;
340 unsigned int mts_firmware:1;
341 unsigned int max_range_640_480:1;
342 unsigned int has_dvb:1;
343 unsigned int has_snapshot_button:1;
344 unsigned int valid:1;
346 unsigned char xclk, i2c_speed;
348 enum em28xx_decoder decoder;
350 struct em28xx_input input[MAX_EM28XX_INPUT];
351 struct em28xx_input radio;
352 IR_KEYTAB_TYPE *ir_codes;
355 struct em28xx_eeprom {
356 u32 id; /* 0x9567eb1a */
364 u16 string1, string2, string3;
370 enum em28xx_dev_state {
371 DEV_INITIALIZED = 0x01,
372 DEV_DISCONNECTED = 0x02,
373 DEV_MISCONFIGURED = 0x04,
376 #define EM28XX_AUDIO_BUFS 5
377 #define EM28XX_NUM_AUDIO_PACKETS 64
378 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
379 #define EM28XX_CAPTURE_STREAM_EN 1
381 /* em28xx extensions */
382 #define EM28XX_AUDIO 0x10
383 #define EM28XX_DVB 0x20
385 struct em28xx_audio {
387 char *transfer_buffer[EM28XX_AUDIO_BUFS];
388 struct urb *urb[EM28XX_AUDIO_BUFS];
389 struct usb_device *udev;
390 unsigned int capture_transfer_done;
391 struct snd_pcm_substream *capture_pcm_substream;
393 unsigned int hwptr_done_capture;
394 struct snd_card *sndcard;
397 enum em28xx_stream_state capture_stream;
405 unsigned int stream_on:1; /* Locks streams */
408 struct videobuf_queue vb_vidq;
410 enum v4l2_buf_type type;
413 /* main device struct */
415 /* generic device properties */
416 char name[30]; /* name (including minor) of the device */
417 int model; /* index in the device_data struct */
418 int devno; /* marks the number of this device */
419 enum em28xx_chip_id chip_id;
420 unsigned int is_em2800:1;
421 unsigned int has_msp34xx:1;
422 unsigned int has_tda9887:1;
423 unsigned int stream_on:1; /* Locks streams */
424 unsigned int has_audio_class:1;
425 unsigned int has_alsa_audio:1;
426 unsigned int max_range_640_480:1;
427 unsigned int has_dvb:1;
428 unsigned int has_snapshot_button:1;
429 unsigned int valid:1; /* report for validated boards */
431 unsigned char xclk, i2c_speed;
433 struct em28xx_IR *ir;
435 /* Some older em28xx chips needs a waiting time after writing */
436 unsigned int wait_after_write;
438 /* GPIO sequences for analog and digital mode */
439 struct em28xx_reg_seq *analog_gpio, *digital_gpio;
441 /* GPIO sequences for tuner callbacks */
442 struct em28xx_reg_seq *tun_analog_gpio, *tun_digital_gpio;
444 int video_inputs; /* number of video inputs */
445 struct list_head devlist;
447 u32 i2s_speed; /* I2S speed for audio digital stream */
449 enum em28xx_decoder decoder;
450 struct em28xx_audio_mode audio_mode;
452 int tuner_type; /* type of the tuner */
453 int tuner_addr; /* tuner address */
456 struct i2c_adapter i2c_adap;
457 struct i2c_client i2c_client;
458 /* video for linux */
459 int users; /* user count for exclusive use */
460 struct video_device *vdev; /* video for linux device struct */
461 v4l2_std_id norm; /* selected tv norm */
462 int ctl_freq; /* selected frequency */
463 unsigned int ctl_input; /* selected input */
464 unsigned int ctl_ainput;/* selected audio input */
465 unsigned int ctl_aoutput;/* selected audio output */
468 /* frame properties */
469 int width; /* current frame width */
470 int height; /* current frame height */
471 unsigned hscale; /* horizontal scale factor (see datasheet) */
472 unsigned vscale; /* vertical scale factor (see datasheet) */
473 int interlaced; /* 1=interlace fileds, 0=just top fileds */
474 unsigned int video_bytesread; /* Number of bytes read */
476 unsigned long hash; /* eeprom hash - for boards with generic ID */
477 unsigned long i2c_hash; /* i2c devicelist hash -
478 for boards with generic ID */
480 struct em28xx_audio *adev;
483 enum em28xx_dev_state state;
484 enum em28xx_io_method io;
486 struct work_struct request_module_wk;
490 struct mutex ctrl_urb_lock; /* protects urb_buf */
491 /* spinlock_t queue_lock; */
492 struct list_head inqueue, outqueue;
493 wait_queue_head_t open, wait_frame, wait_stream;
494 struct video_device *vbi_dev;
495 struct video_device *radio_dev;
497 unsigned char eedata[256];
499 /* Isoc control struct */
500 struct em28xx_dmaqueue vidq;
501 struct em28xx_usb_isoc_ctl isoc_ctl;
505 struct usb_device *udev; /* the usb device */
506 int alt; /* alternate */
507 int max_pkt_size; /* max packet size of isoc transaction */
508 int num_alt; /* Number of alternative settings */
509 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
510 struct urb *urb[EM28XX_NUM_BUFS]; /* urb for isoc transfers */
511 char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */
512 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */
514 /* helper funcs that call usb_control_msg */
515 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
517 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
518 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
520 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
522 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
524 enum em28xx_mode mode;
526 /* register numbers for GPO/GPIO registers */
527 u16 reg_gpo_num, reg_gpio_num;
529 /* Caches GPO and GPIO registers */
530 unsigned char reg_gpo, reg_gpio;
532 /* Infrared remote control support */
533 IR_KEYTAB_TYPE *ir_codes;
535 /* Snapshot button */
536 char snapshot_button_path[30]; /* path of the input dev */
537 struct input_dev *sbutton_input_dev;
538 struct delayed_work sbutton_query_work;
540 struct em28xx_dvb *dvb;
544 struct list_head next;
547 int (*init)(struct em28xx *);
548 int (*fini)(struct em28xx *);
551 /* Provided by em28xx-i2c.c */
553 void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg);
554 void em28xx_do_i2c_scan(struct em28xx *dev);
555 int em28xx_i2c_register(struct em28xx *dev);
556 int em28xx_i2c_unregister(struct em28xx *dev);
558 /* Provided by em28xx-core.c */
560 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
561 void em28xx_queue_unusedframes(struct em28xx *dev);
562 void em28xx_release_buffers(struct em28xx *dev);
564 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
566 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
567 int em28xx_read_reg(struct em28xx *dev, u16 reg);
568 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
570 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
571 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
573 int em28xx_audio_analog_set(struct em28xx *dev);
574 int em28xx_audio_setup(struct em28xx *dev);
576 int em28xx_colorlevels_set_default(struct em28xx *dev);
577 int em28xx_capture_start(struct em28xx *dev, int start);
578 int em28xx_outfmt_set_yuv422(struct em28xx *dev);
579 int em28xx_resolution_set(struct em28xx *dev);
580 int em28xx_set_alternate(struct em28xx *dev);
581 int em28xx_init_isoc(struct em28xx *dev, int max_packets,
582 int num_bufs, int max_pkt_size,
583 int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
584 void em28xx_uninit_isoc(struct em28xx *dev);
585 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
586 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
588 /* Provided by em28xx-video.c */
589 int em28xx_register_extension(struct em28xx_ops *dev);
590 void em28xx_unregister_extension(struct em28xx_ops *dev);
592 /* Provided by em28xx-cards.c */
593 extern int em2800_variant_detect(struct usb_device *udev, int model);
594 extern void em28xx_pre_card_setup(struct em28xx *dev);
595 extern void em28xx_card_setup(struct em28xx *dev);
596 extern struct em28xx_board em28xx_boards[];
597 extern struct usb_device_id em28xx_id_table[];
598 extern const unsigned int em28xx_bcount;
599 void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir);
600 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
602 /* Provided by em28xx-input.c */
603 int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
604 int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
605 int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
607 void em28xx_register_snapshot_button(struct em28xx *dev);
608 void em28xx_deregister_snapshot_button(struct em28xx *dev);
610 int em28xx_ir_init(struct em28xx *dev);
611 int em28xx_ir_fini(struct em28xx *dev);
615 #define em28xx_err(fmt, arg...) do {\
616 printk(KERN_ERR fmt , ##arg); } while (0)
618 #define em28xx_errdev(fmt, arg...) do {\
619 printk(KERN_ERR "%s: "fmt,\
620 dev->name , ##arg); } while (0)
622 #define em28xx_info(fmt, arg...) do {\
623 printk(KERN_INFO "%s: "fmt,\
624 dev->name , ##arg); } while (0)
625 #define em28xx_warn(fmt, arg...) do {\
626 printk(KERN_WARNING "%s: "fmt,\
627 dev->name , ##arg); } while (0)
629 static inline int em28xx_compression_disable(struct em28xx *dev)
631 /* side effect of disabling scaler and mixer */
632 return em28xx_write_regs(dev, EM28XX_R26_COMPR, "\x00", 1);
635 static inline int em28xx_contrast_get(struct em28xx *dev)
637 return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
640 static inline int em28xx_brightness_get(struct em28xx *dev)
642 return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
645 static inline int em28xx_saturation_get(struct em28xx *dev)
647 return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
650 static inline int em28xx_u_balance_get(struct em28xx *dev)
652 return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
655 static inline int em28xx_v_balance_get(struct em28xx *dev)
657 return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
660 static inline int em28xx_gamma_get(struct em28xx *dev)
662 return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
665 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
668 return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
671 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
674 return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
677 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
680 return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
683 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
686 return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
689 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
692 return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
695 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
698 return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
701 /*FIXME: maxw should be dependent of alt mode */
702 static inline unsigned int norm_maxw(struct em28xx *dev)
704 if (dev->max_range_640_480)
710 static inline unsigned int norm_maxh(struct em28xx *dev)
712 if (dev->max_range_640_480)
715 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;