V4L/DVB (6536): Add a hint for boards without unique USB ID
[deliverable/linux.git] / drivers / media / video / em28xx / em28xx.h
CommitLineData
a6c2ba28 1/*
0e7072ef 2 em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
a6c2ba28 3
4 Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
4ac97914 5 Ludovico Cavedon <cavedon@sssup.it>
2e7c6dc3 6 Mauro Carvalho Chehab <mchehab@infradead.org>
a6c2ba28 7
8 Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
9
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.
14
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.
19
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.
23 */
24
3acf2809
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25#ifndef _EM28XX_H
26#define _EM28XX_H
a6c2ba28 27
28#include <linux/videodev.h>
29#include <linux/i2c.h>
3593cab5 30#include <linux/mutex.h>
d5e52653 31#include <media/ir-kbd-i2c.h>
a6c2ba28 32
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33/* Boards supported by driver */
34
35#define EM2800_BOARD_UNKNOWN 0
36#define EM2820_BOARD_UNKNOWN 1
37#define EM2820_BOARD_TERRATEC_CINERGY_250 2
38#define EM2820_BOARD_PINNACLE_USB_2 3
39#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
40#define EM2820_BOARD_MSI_VOX_USB_2 5
41#define EM2800_BOARD_TERRATEC_CINERGY_200 6
42#define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
43#define EM2800_BOARD_KWORLD_USB2800 8
45632c4f 44#define EM2820_BOARD_PINNACLE_DVC_90 9
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45#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
46#define EM2880_BOARD_TERRATEC_HYBRID_XS 11
47#define EM2820_BOARD_KWORLD_PVRTV2800RF 12
282b7cb3 48#define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
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49
50#define UNSET -1
51
52/* maximum number of em28xx boards */
3acf2809 53#define EM28XX_MAXBOARDS 1 /*FIXME: should be bigger */
596d92d5 54
a6c2ba28 55/* maximum number of frames that can be queued */
3acf2809 56#define EM28XX_NUM_FRAMES 5
a6c2ba28 57/* number of frames that get used for v4l2_read() */
3acf2809 58#define EM28XX_NUM_READ_FRAMES 2
a6c2ba28 59
60/* number of buffers for isoc transfers */
3acf2809 61#define EM28XX_NUM_BUFS 5
a6c2ba28 62
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63/* number of packets for each buffer
64 windows requests only 40 packets .. so we better do the same
65 this is what I found out for all alternate numbers there!
66 */
3acf2809 67#define EM28XX_NUM_PACKETS 40
a6c2ba28 68
a6c2ba28 69/* default alternate; 0 means choose the best */
3acf2809 70#define EM28XX_PINOUT 0
a6c2ba28 71
3acf2809 72#define EM28XX_INTERLACED_DEFAULT 1
a6c2ba28 73
74/*
75#define (use usbview if you want to get the other alternate number infos)
76#define
77#define alternate number 2
78#define Endpoint Address: 82
79 Direction: in
80 Attribute: 1
81 Type: Isoc
82 Max Packet Size: 1448
83 Interval: 125us
84
85 alternate number 7
86
87 Endpoint Address: 82
88 Direction: in
89 Attribute: 1
90 Type: Isoc
91 Max Packet Size: 3072
92 Interval: 125us
93*/
94
95/* time to wait when stopping the isoc transfer */
3acf2809 96#define EM28XX_URB_TIMEOUT msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
a6c2ba28 97
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98/* time in msecs to wait for i2c writes to finish */
99#define EM2800_I2C_WRITE_TIMEOUT 20
100
a6c2ba28 101/* the various frame states */
3acf2809 102enum em28xx_frame_state {
a6c2ba28 103 F_UNUSED = 0,
104 F_QUEUED,
105 F_GRABBING,
106 F_DONE,
107 F_ERROR,
108};
109
110/* stream states */
3acf2809 111enum em28xx_stream_state {
a6c2ba28 112 STREAM_OFF,
113 STREAM_INTERRUPT,
114 STREAM_ON,
115};
116
117/* frames */
3acf2809 118struct em28xx_frame_t {
a6c2ba28 119 void *bufmem;
120 struct v4l2_buffer buf;
3acf2809 121 enum em28xx_frame_state state;
a6c2ba28 122 struct list_head frame;
123 unsigned long vma_use_count;
124 int top_field;
125 int fieldbytesused;
126};
127
128/* io methods */
3acf2809 129enum em28xx_io_method {
a6c2ba28 130 IO_NONE,
131 IO_READ,
132 IO_MMAP,
133};
134
135/* inputs */
136
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137#define MAX_EM28XX_INPUT 4
138enum enum28xx_itype {
139 EM28XX_VMUX_COMPOSITE1 = 1,
140 EM28XX_VMUX_COMPOSITE2,
141 EM28XX_VMUX_COMPOSITE3,
142 EM28XX_VMUX_COMPOSITE4,
143 EM28XX_VMUX_SVIDEO,
144 EM28XX_VMUX_TELEVISION,
145 EM28XX_VMUX_CABLE,
146 EM28XX_VMUX_DVB,
147 EM28XX_VMUX_DEBUG,
148 EM28XX_RADIO,
a6c2ba28 149};
150
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151struct em28xx_input {
152 enum enum28xx_itype type;
a6c2ba28 153 unsigned int vmux;
154 unsigned int amux;
155};
156
3acf2809 157#define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
a6c2ba28 158
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159enum em28xx_decoder {
160 EM28XX_TVP5150,
161 EM28XX_SAA7113,
162 EM28XX_SAA7114
a6c2ba28 163};
164
3acf2809 165struct em28xx_board {
a6c2ba28 166 char *name;
a6c2ba28 167 int vchannels;
168 int norm;
169 int tuner_type;
170
171 /* i2c flags */
596d92d5 172 unsigned int is_em2800;
a6c2ba28 173 unsigned int tda9887_conf;
174
175 unsigned int has_tuner:1;
176 unsigned int has_msp34xx:1;
177
3acf2809 178 enum em28xx_decoder decoder;
a6c2ba28 179
3acf2809 180 struct em28xx_input input[MAX_EM28XX_INPUT];
a6c2ba28 181};
182
3acf2809 183struct em28xx_eeprom {
a6c2ba28 184 u32 id; /* 0x9567eb1a */
185 u16 vendor_ID;
186 u16 product_ID;
187
188 u16 chip_conf;
189
190 u16 board_conf;
191
192 u16 string1, string2, string3;
193
194 u8 string_idx_table;
195};
196
197/* device states */
3acf2809 198enum em28xx_dev_state {
a6c2ba28 199 DEV_INITIALIZED = 0x01,
200 DEV_DISCONNECTED = 0x02,
201 DEV_MISCONFIGURED = 0x04,
202};
203
204/* tvnorms */
3acf2809 205struct em28xx_tvnorm {
a6c2ba28 206 char *name;
207 v4l2_std_id id;
208 /* mode for saa7113h */
209 int mode;
210};
211
212/* main device struct */
3acf2809 213struct em28xx {
a6c2ba28 214 /* generic device properties */
215 char name[30]; /* name (including minor) of the device */
216 int model; /* index in the device_data struct */
e5589bef 217 int devno; /* marks the number of this device */
596d92d5 218 unsigned int is_em2800;
a6c2ba28 219 int video_inputs; /* number of video inputs */
9c75541f 220 struct list_head devlist;
a6c2ba28 221 unsigned int has_tuner:1;
222 unsigned int has_msp34xx:1;
223 unsigned int has_tda9887:1;
224
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225 u32 i2s_speed; /* I2S speed for audio digital stream */
226
3acf2809 227 enum em28xx_decoder decoder;
a6c2ba28 228
229 int tuner_type; /* type of the tuner */
230 int tuner_addr; /* tuner address */
231 int tda9887_conf;
232 /* i2c i/o */
233 struct i2c_adapter i2c_adap;
234 struct i2c_client i2c_client;
235 /* video for linux */
236 int users; /* user count for exclusive use */
237 struct video_device *vdev; /* video for linux device struct */
238 struct video_picture vpic; /* picture settings only used to init saa7113h */
3acf2809 239 struct em28xx_tvnorm *tvnorm; /* selected tv norm */
a6c2ba28 240 int ctl_freq; /* selected frequency */
241 unsigned int ctl_input; /* selected input */
242 unsigned int ctl_ainput; /* slected audio input */
243 int mute;
244 int volume;
245 /* frame properties */
3acf2809 246 struct em28xx_frame_t frame[EM28XX_NUM_FRAMES]; /* list of frames */
a6c2ba28 247 int num_frames; /* number of frames currently in use */
248 unsigned int frame_count; /* total number of transfered frames */
3acf2809 249 struct em28xx_frame_t *frame_current; /* the frame that is being filled */
a6c2ba28 250 int width; /* current frame width */
251 int height; /* current frame height */
252 int frame_size; /* current frame size */
253 int field_size; /* current field size */
254 int bytesperline;
255 int hscale; /* horizontal scale factor (see datasheet) */
256 int vscale; /* vertical scale factor (see datasheet) */
257 int interlaced; /* 1=interlace fileds, 0=just top fileds */
258 int type;
259
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260 unsigned long hash; /* eeprom hash - for boards with generic ID */
261
a6c2ba28 262 /* states */
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263 enum em28xx_dev_state state;
264 enum em28xx_stream_state stream;
265 enum em28xx_io_method io;
a6c2ba28 266 /* locks */
3593cab5 267 struct mutex lock, fileop_lock;
a6c2ba28 268 spinlock_t queue_lock;
269 struct list_head inqueue, outqueue;
270 wait_queue_head_t open, wait_frame, wait_stream;
271 struct video_device *vbi_dev;
272
273 unsigned char eedata[256];
274
275 /* usb transfer */
276 struct usb_device *udev; /* the usb device */
277 int alt; /* alternate */
278 int max_pkt_size; /* max packet size of isoc transaction */
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279 int num_alt; /* Number of alternative settings */
280 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
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281 struct urb *urb[EM28XX_NUM_BUFS]; /* urb for isoc transfers */
282 char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */
a6c2ba28 283 /* helper funcs that call usb_control_msg */
3acf2809 284 int (*em28xx_write_regs) (struct em28xx * dev, u16 reg, char *buf,
a6c2ba28 285 int len);
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286 int (*em28xx_read_reg) (struct em28xx * dev, u16 reg);
287 int (*em28xx_read_reg_req_len) (struct em28xx * dev, u8 req, u16 reg,
a6c2ba28 288 char *buf, int len);
3acf2809 289 int (*em28xx_write_regs_req) (struct em28xx * dev, u8 req, u16 reg,
a6c2ba28 290 char *buf, int len);
3acf2809 291 int (*em28xx_read_reg_req) (struct em28xx * dev, u8 req, u16 reg);
a6c2ba28 292};
293
3acf2809 294/* Provided by em28xx-i2c.c */
a6c2ba28 295
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296void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg);
297int em28xx_i2c_register(struct em28xx *dev);
298int em28xx_i2c_unregister(struct em28xx *dev);
a6c2ba28 299
3acf2809 300/* Provided by em28xx-input.c */
d5e52653 301
3acf2809 302void em28xx_set_ir(struct em28xx * dev,struct IR_i2c *ir);
d5e52653 303
3acf2809 304/* Provided by em28xx-core.c */
a6c2ba28 305
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306u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
307void em28xx_queue_unusedframes(struct em28xx *dev);
308void em28xx_release_buffers(struct em28xx *dev);
a6c2ba28 309
3acf2809 310int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
a6c2ba28 311 char *buf, int len);
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312int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
313int em28xx_read_reg(struct em28xx *dev, u16 reg);
314int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
a6c2ba28 315 int len);
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316int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
317int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
a6c2ba28 318 u8 bitmask);
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319int em28xx_write_ac97(struct em28xx *dev, u8 reg, u8 * val);
320int em28xx_audio_analog_set(struct em28xx *dev);
321int em28xx_colorlevels_set_default(struct em28xx *dev);
322int em28xx_capture_start(struct em28xx *dev, int start);
323int em28xx_outfmt_set_yuv422(struct em28xx *dev);
3acf2809 324int em28xx_resolution_set(struct em28xx *dev);
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325int em28xx_init_isoc(struct em28xx *dev);
326void em28xx_uninit_isoc(struct em28xx *dev);
327int em28xx_set_alternate(struct em28xx *dev);
328
329/* Provided by em28xx-cards.c */
596d92d5 330extern int em2800_variant_detect(struct usb_device* udev,int model);
a94e95b4 331extern void em28xx_pre_card_setup(struct em28xx *dev);
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332extern void em28xx_card_setup(struct em28xx *dev);
333extern struct em28xx_board em28xx_boards[];
334extern struct usb_device_id em28xx_id_table[];
335extern const unsigned int em28xx_bcount;
a6c2ba28 336
3acf2809 337/* em28xx registers */
596d92d5 338#define CHIPID_REG 0x0a
a6c2ba28 339#define USBSUSP_REG 0x0c /* */
340
341#define AUDIOSRC_REG 0x0e
342#define XCLK_REG 0x0f
343
344#define VINMODE_REG 0x10
345#define VINCTRL_REG 0x11
346#define VINENABLE_REG 0x12 /* */
347
348#define GAMMA_REG 0x14
349#define RGAIN_REG 0x15
350#define GGAIN_REG 0x16
351#define BGAIN_REG 0x17
352#define ROFFSET_REG 0x18
353#define GOFFSET_REG 0x19
354#define BOFFSET_REG 0x1a
355
356#define OFLOW_REG 0x1b
357#define HSTART_REG 0x1c
358#define VSTART_REG 0x1d
359#define CWIDTH_REG 0x1e
360#define CHEIGHT_REG 0x1f
361
362#define YGAIN_REG 0x20
363#define YOFFSET_REG 0x21
364#define UVGAIN_REG 0x22
365#define UOFFSET_REG 0x23
366#define VOFFSET_REG 0x24
367#define SHARPNESS_REG 0x25
368
369#define COMPR_REG 0x26
370#define OUTFMT_REG 0x27
371
372#define XMIN_REG 0x28
373#define XMAX_REG 0x29
374#define YMIN_REG 0x2a
375#define YMAX_REG 0x2b
376
377#define HSCALELOW_REG 0x30
378#define HSCALEHIGH_REG 0x31
379#define VSCALELOW_REG 0x32
380#define VSCALEHIGH_REG 0x33
381
382#define AC97LSB_REG 0x40
383#define AC97MSB_REG 0x41
384#define AC97ADDR_REG 0x42
385#define AC97BUSY_REG 0x43
386
387/* em202 registers */
388#define MASTER_AC97 0x02
389#define VIDEO_AC97 0x14
390
391/* register settings */
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392#define EM28XX_AUDIO_SRC_TUNER 0xc0
393#define EM28XX_AUDIO_SRC_LINE 0x80
a6c2ba28 394
395/* printk macros */
396
3acf2809 397#define em28xx_err(fmt, arg...) do {\
f85c657f 398 printk(KERN_ERR fmt , ##arg); } while (0)
a6c2ba28 399
3acf2809 400#define em28xx_errdev(fmt, arg...) do {\
4ac97914 401 printk(KERN_ERR "%s: "fmt,\
f85c657f 402 dev->name , ##arg); } while (0)
a6c2ba28 403
3acf2809 404#define em28xx_info(fmt, arg...) do {\
4ac97914 405 printk(KERN_INFO "%s: "fmt,\
f85c657f 406 dev->name , ##arg); } while (0)
3acf2809 407#define em28xx_warn(fmt, arg...) do {\
4ac97914 408 printk(KERN_WARNING "%s: "fmt,\
f85c657f 409 dev->name , ##arg); } while (0)
a6c2ba28 410
3acf2809 411inline static int em28xx_audio_source(struct em28xx *dev, int input)
a6c2ba28 412{
3acf2809 413 return em28xx_write_reg_bits(dev, AUDIOSRC_REG, input, 0xc0);
a6c2ba28 414}
415
3acf2809 416inline static int em28xx_audio_usb_mute(struct em28xx *dev, int mute)
a6c2ba28 417{
3acf2809 418 return em28xx_write_reg_bits(dev, XCLK_REG, mute ? 0x00 : 0x80, 0x80);
a6c2ba28 419}
420
3acf2809 421inline static int em28xx_audio_analog_setup(struct em28xx *dev)
a6c2ba28 422{
423 /* unmute video mixer with default volume level */
3acf2809 424 return em28xx_write_ac97(dev, VIDEO_AC97, "\x08\x08");
a6c2ba28 425}
426
3acf2809 427inline static int em28xx_compression_disable(struct em28xx *dev)
a6c2ba28 428{
429 /* side effect of disabling scaler and mixer */
3acf2809 430 return em28xx_write_regs(dev, COMPR_REG, "\x00", 1);
a6c2ba28 431}
432
3acf2809 433inline static int em28xx_contrast_get(struct em28xx *dev)
a6c2ba28 434{
3acf2809 435 return em28xx_read_reg(dev, YGAIN_REG) & 0x1f;
a6c2ba28 436}
437
3acf2809 438inline static int em28xx_brightness_get(struct em28xx *dev)
a6c2ba28 439{
3acf2809 440 return em28xx_read_reg(dev, YOFFSET_REG);
a6c2ba28 441}
442
3acf2809 443inline static int em28xx_saturation_get(struct em28xx *dev)
a6c2ba28 444{
3acf2809 445 return em28xx_read_reg(dev, UVGAIN_REG) & 0x1f;
a6c2ba28 446}
447
3acf2809 448inline static int em28xx_u_balance_get(struct em28xx *dev)
a6c2ba28 449{
3acf2809 450 return em28xx_read_reg(dev, UOFFSET_REG);
a6c2ba28 451}
452
3acf2809 453inline static int em28xx_v_balance_get(struct em28xx *dev)
a6c2ba28 454{
3acf2809 455 return em28xx_read_reg(dev, VOFFSET_REG);
a6c2ba28 456}
457
3acf2809 458inline static int em28xx_gamma_get(struct em28xx *dev)
a6c2ba28 459{
3acf2809 460 return em28xx_read_reg(dev, GAMMA_REG) & 0x3f;
a6c2ba28 461}
462
3acf2809 463inline static int em28xx_contrast_set(struct em28xx *dev, s32 val)
a6c2ba28 464{
465 u8 tmp = (u8) val;
3acf2809 466 return em28xx_write_regs(dev, YGAIN_REG, &tmp, 1);
a6c2ba28 467}
468
3acf2809 469inline static int em28xx_brightness_set(struct em28xx *dev, s32 val)
a6c2ba28 470{
471 u8 tmp = (u8) val;
3acf2809 472 return em28xx_write_regs(dev, YOFFSET_REG, &tmp, 1);
a6c2ba28 473}
474
3acf2809 475inline static int em28xx_saturation_set(struct em28xx *dev, s32 val)
a6c2ba28 476{
477 u8 tmp = (u8) val;
3acf2809 478 return em28xx_write_regs(dev, UVGAIN_REG, &tmp, 1);
a6c2ba28 479}
480
3acf2809 481inline static int em28xx_u_balance_set(struct em28xx *dev, s32 val)
a6c2ba28 482{
483 u8 tmp = (u8) val;
3acf2809 484 return em28xx_write_regs(dev, UOFFSET_REG, &tmp, 1);
a6c2ba28 485}
486
3acf2809 487inline static int em28xx_v_balance_set(struct em28xx *dev, s32 val)
a6c2ba28 488{
489 u8 tmp = (u8) val;
3acf2809 490 return em28xx_write_regs(dev, VOFFSET_REG, &tmp, 1);
a6c2ba28 491}
492
3acf2809 493inline static int em28xx_gamma_set(struct em28xx *dev, s32 val)
a6c2ba28 494{
495 u8 tmp = (u8) val;
3acf2809 496 return em28xx_write_regs(dev, GAMMA_REG, &tmp, 1);
a6c2ba28 497}
498
499/*FIXME: maxw should be dependent of alt mode */
3acf2809 500inline static unsigned int norm_maxw(struct em28xx *dev)
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501{
502 switch(dev->model){
503 case (EM2820_BOARD_MSI_VOX_USB_2): return(640);
504 default: return(720);
505 }
506}
507
3acf2809 508inline static unsigned int norm_maxh(struct em28xx *dev)
a6c2ba28 509{
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510 switch(dev->model){
511 case (EM2820_BOARD_MSI_VOX_USB_2): return(480);
512 default: return (dev->tvnorm->id & V4L2_STD_625_50) ? 576 : 480;
513 }
a6c2ba28 514}
515
516#endif
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