V4L/DVB (5052): Pvrusb2: Remove stream claiming hack from /dev/radio
[linux-2.6] / drivers / media / video / ks0127.c
1 /*
2  * Video Capture Driver (Video for Linux 1/2)
3  * for the Matrox Marvel G200,G400 and Rainbow Runner-G series
4  *
5  * This module is an interface to the KS0127 video decoder chip.
6  *
7  * Copyright (C) 1999  Ryan Drake <stiletto@mediaone.net>
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version 2
12  * of the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
22  *
23  *****************************************************************************
24  *
25  * Modified and extended by
26  *      Mike Bernson <mike@mlb.org>
27  *      Gerard v.d. Horst
28  *      Leon van Stuivenberg <l.vanstuivenberg@chello.nl>
29  *      Gernot Ziegler <gz@lysator.liu.se>
30  *
31  * Version History:
32  * V1.0 Ryan Drake         Initial version by Ryan Drake
33  * V1.1 Gerard v.d. Horst  Added some debugoutput, reset the video-standard
34  */
35
36 #ifndef __KERNEL__
37 #define __KERNEL__
38 #endif
39
40 #include <linux/init.h>
41 #include <linux/module.h>
42 #include <linux/delay.h>
43 #include <linux/errno.h>
44 #include <linux/kernel.h>
45 #include <linux/slab.h>
46 #include <linux/proc_fs.h>
47 #include "ks0127.h"
48
49 #include <linux/i2c.h>
50 #include <linux/video_decoder.h>
51
52 #define dprintk     if (debug) printk
53
54 /* i2c identification */
55 #define I2C_KS0127_ADDON   0xD8
56 #define I2C_KS0127_ONBOARD 0xDA
57
58 #define KS_TYPE_UNKNOWN 0
59 #define KS_TYPE_0122S   1
60 #define KS_TYPE_0127    2
61 #define KS_TYPE_0127B   3
62
63 /* ks0127 control registers */
64 #define KS_STAT     0x00
65 #define KS_CMDA     0x01
66 #define KS_CMDB     0x02
67 #define KS_CMDC     0x03
68 #define KS_CMDD     0x04
69 #define KS_HAVB     0x05
70 #define KS_HAVE     0x06
71 #define KS_HS1B     0x07
72 #define KS_HS1E     0x08
73 #define KS_HS2B     0x09
74 #define KS_HS2E     0x0a
75 #define KS_AGC      0x0b
76 #define KS_HXTRA    0x0c
77 #define KS_CDEM     0x0d
78 #define KS_PORTAB   0x0e
79 #define KS_LUMA     0x0f
80 #define KS_CON      0x10
81 #define KS_BRT      0x11
82 #define KS_CHROMA   0x12
83 #define KS_CHROMB   0x13
84 #define KS_DEMOD    0x14
85 #define KS_SAT      0x15
86 #define KS_HUE      0x16
87 #define KS_VERTIA   0x17
88 #define KS_VERTIB   0x18
89 #define KS_VERTIC   0x19
90 #define KS_HSCLL    0x1a
91 #define KS_HSCLH    0x1b
92 #define KS_VSCLL    0x1c
93 #define KS_VSCLH    0x1d
94 #define KS_OFMTA    0x1e
95 #define KS_OFMTB    0x1f
96 #define KS_VBICTL   0x20
97 #define KS_CCDAT2   0x21
98 #define KS_CCDAT1   0x22
99 #define KS_VBIL30   0x23
100 #define KS_VBIL74   0x24
101 #define KS_VBIL118  0x25
102 #define KS_VBIL1512 0x26
103 #define KS_TTFRAM   0x27
104 #define KS_TESTA    0x28
105 #define KS_UVOFFH   0x29
106 #define KS_UVOFFL   0x2a
107 #define KS_UGAIN    0x2b
108 #define KS_VGAIN    0x2c
109 #define KS_VAVB     0x2d
110 #define KS_VAVE     0x2e
111 #define KS_CTRACK   0x2f
112 #define KS_POLCTL   0x30
113 #define KS_REFCOD   0x31
114 #define KS_INVALY   0x32
115 #define KS_INVALU   0x33
116 #define KS_INVALV   0x34
117 #define KS_UNUSEY   0x35
118 #define KS_UNUSEU   0x36
119 #define KS_UNUSEV   0x37
120 #define KS_USRSAV   0x38
121 #define KS_USREAV   0x39
122 #define KS_SHS1A    0x3a
123 #define KS_SHS1B    0x3b
124 #define KS_SHS1C    0x3c
125 #define KS_CMDE     0x3d
126 #define KS_VSDEL    0x3e
127 #define KS_CMDF     0x3f
128 #define KS_GAMMA0   0x40
129 #define KS_GAMMA1   0x41
130 #define KS_GAMMA2   0x42
131 #define KS_GAMMA3   0x43
132 #define KS_GAMMA4   0x44
133 #define KS_GAMMA5   0x45
134 #define KS_GAMMA6   0x46
135 #define KS_GAMMA7   0x47
136 #define KS_GAMMA8   0x48
137 #define KS_GAMMA9   0x49
138 #define KS_GAMMA10  0x4a
139 #define KS_GAMMA11  0x4b
140 #define KS_GAMMA12  0x4c
141 #define KS_GAMMA13  0x4d
142 #define KS_GAMMA14  0x4e
143 #define KS_GAMMA15  0x4f
144 #define KS_GAMMA16  0x50
145 #define KS_GAMMA17  0x51
146 #define KS_GAMMA18  0x52
147 #define KS_GAMMA19  0x53
148 #define KS_GAMMA20  0x54
149 #define KS_GAMMA21  0x55
150 #define KS_GAMMA22  0x56
151 #define KS_GAMMA23  0x57
152 #define KS_GAMMA24  0x58
153 #define KS_GAMMA25  0x59
154 #define KS_GAMMA26  0x5a
155 #define KS_GAMMA27  0x5b
156 #define KS_GAMMA28  0x5c
157 #define KS_GAMMA29  0x5d
158 #define KS_GAMMA30  0x5e
159 #define KS_GAMMA31  0x5f
160 #define KS_GAMMAD0  0x60
161 #define KS_GAMMAD1  0x61
162 #define KS_GAMMAD2  0x62
163 #define KS_GAMMAD3  0x63
164 #define KS_GAMMAD4  0x64
165 #define KS_GAMMAD5  0x65
166 #define KS_GAMMAD6  0x66
167 #define KS_GAMMAD7  0x67
168 #define KS_GAMMAD8  0x68
169 #define KS_GAMMAD9  0x69
170 #define KS_GAMMAD10 0x6a
171 #define KS_GAMMAD11 0x6b
172 #define KS_GAMMAD12 0x6c
173 #define KS_GAMMAD13 0x6d
174 #define KS_GAMMAD14 0x6e
175 #define KS_GAMMAD15 0x6f
176 #define KS_GAMMAD16 0x70
177 #define KS_GAMMAD17 0x71
178 #define KS_GAMMAD18 0x72
179 #define KS_GAMMAD19 0x73
180 #define KS_GAMMAD20 0x74
181 #define KS_GAMMAD21 0x75
182 #define KS_GAMMAD22 0x76
183 #define KS_GAMMAD23 0x77
184 #define KS_GAMMAD24 0x78
185 #define KS_GAMMAD25 0x79
186 #define KS_GAMMAD26 0x7a
187 #define KS_GAMMAD27 0x7b
188 #define KS_GAMMAD28 0x7c
189 #define KS_GAMMAD29 0x7d
190 #define KS_GAMMAD30 0x7e
191 #define KS_GAMMAD31 0x7f
192
193
194 /****************************************************************************
195 * mga_dev : represents one ks0127 chip.
196 ****************************************************************************/
197
198 struct adjust {
199         int     contrast;
200         int     bright;
201         int     hue;
202         int     ugain;
203         int     vgain;
204 };
205
206 struct ks0127 {
207         struct i2c_client *client;
208         unsigned char   addr;
209         int             format_width;
210         int             format_height;
211         int             cap_width;
212         int             cap_height;
213         int             norm;
214         int             ks_type;
215         u8              regs[256];
216 };
217
218
219 static int debug; /* insmod parameter */
220
221 module_param(debug, int, 0);
222 MODULE_PARM_DESC(debug, "Debug output");
223 MODULE_LICENSE("GPL");
224
225 static u8 reg_defaults[64];
226
227
228
229 static void init_reg_defaults(void)
230 {
231         u8 *table = reg_defaults;
232
233         table[KS_CMDA]     = 0x2c;  /* VSE=0, CCIR 601, autodetect standard */
234         table[KS_CMDB]     = 0x12;  /* VALIGN=0, AGC control and input */
235         table[KS_CMDC]     = 0x00;  /* Test options */
236         /* clock & input select, write 1 to PORTA */
237         table[KS_CMDD]     = 0x01;
238         table[KS_HAVB]     = 0x00;  /* HAV Start Control */
239         table[KS_HAVE]     = 0x00;  /* HAV End Control */
240         table[KS_HS1B]     = 0x10;  /* HS1 Start Control */
241         table[KS_HS1E]     = 0x00;  /* HS1 End Control */
242         table[KS_HS2B]     = 0x00;  /* HS2 Start Control */
243         table[KS_HS2E]     = 0x00;  /* HS2 End Control */
244         table[KS_AGC]      = 0x53;  /* Manual setting for AGC */
245         table[KS_HXTRA]    = 0x00;  /* Extra Bits for HAV and HS1/2 */
246         table[KS_CDEM]     = 0x00;  /* Chroma Demodulation Control */
247         table[KS_PORTAB]   = 0x0f;  /* port B is input, port A output GPPORT */
248         table[KS_LUMA]     = 0x01;  /* Luma control */
249         table[KS_CON]      = 0x00;  /* Contrast Control */
250         table[KS_BRT]      = 0x00;  /* Brightness Control */
251         table[KS_CHROMA]   = 0x2a;  /* Chroma control A */
252         table[KS_CHROMB]   = 0x90;  /* Chroma control B */
253         table[KS_DEMOD]    = 0x00;  /* Chroma Demodulation Control & Status */
254         table[KS_SAT]      = 0x00;  /* Color Saturation Control*/
255         table[KS_HUE]      = 0x00;  /* Hue Control */
256         table[KS_VERTIA]   = 0x00;  /* Vertical Processing Control A */
257         /* Vertical Processing Control B, luma 1 line delayed */
258         table[KS_VERTIB]   = 0x12;
259         table[KS_VERTIC]   = 0x0b;  /* Vertical Processing Control C */
260         table[KS_HSCLL]    = 0x00;  /* Horizontal Scaling Ratio Low */
261         table[KS_HSCLH]    = 0x00;  /* Horizontal Scaling Ratio High */
262         table[KS_VSCLL]    = 0x00;  /* Vertical Scaling Ratio Low */
263         table[KS_VSCLH]    = 0x00;  /* Vertical Scaling Ratio High */
264         /* 16 bit YCbCr 4:2:2 output; I can't make the bt866 like 8 bit /Sam */
265         table[KS_OFMTA]    = 0x30;
266         table[KS_OFMTB]    = 0x00;  /* Output Control B */
267         /* VBI Decoder Control; 4bit fmt: avoid Y overflow */
268         table[KS_VBICTL]   = 0x5d;
269         table[KS_CCDAT2]   = 0x00;  /* Read Only register */
270         table[KS_CCDAT1]   = 0x00;  /* Read Only register */
271         table[KS_VBIL30]   = 0xa8;  /* VBI data decoding options */
272         table[KS_VBIL74]   = 0xaa;  /* VBI data decoding options */
273         table[KS_VBIL118]  = 0x2a;  /* VBI data decoding options */
274         table[KS_VBIL1512] = 0x00;  /* VBI data decoding options */
275         table[KS_TTFRAM]   = 0x00;  /* Teletext frame alignment pattern */
276         table[KS_TESTA]    = 0x00;  /* test register, shouldn't be written */
277         table[KS_UVOFFH]   = 0x00;  /* UV Offset Adjustment High */
278         table[KS_UVOFFL]   = 0x00;  /* UV Offset Adjustment Low */
279         table[KS_UGAIN]    = 0x00;  /* U Component Gain Adjustment */
280         table[KS_VGAIN]    = 0x00;  /* V Component Gain Adjustment */
281         table[KS_VAVB]     = 0x07;  /* VAV Begin */
282         table[KS_VAVE]     = 0x00;  /* VAV End */
283         table[KS_CTRACK]   = 0x00;  /* Chroma Tracking Control */
284         table[KS_POLCTL]   = 0x41;  /* Timing Signal Polarity Control */
285         table[KS_REFCOD]   = 0x80;  /* Reference Code Insertion Control */
286         table[KS_INVALY]   = 0x10;  /* Invalid Y Code */
287         table[KS_INVALU]   = 0x80;  /* Invalid U Code */
288         table[KS_INVALV]   = 0x80;  /* Invalid V Code */
289         table[KS_UNUSEY]   = 0x10;  /* Unused Y Code */
290         table[KS_UNUSEU]   = 0x80;  /* Unused U Code */
291         table[KS_UNUSEV]   = 0x80;  /* Unused V Code */
292         table[KS_USRSAV]   = 0x00;  /* reserved */
293         table[KS_USREAV]   = 0x00;  /* reserved */
294         table[KS_SHS1A]    = 0x00;  /* User Defined SHS1 A */
295         /* User Defined SHS1 B, ALT656=1 on 0127B */
296         table[KS_SHS1B]    = 0x80;
297         table[KS_SHS1C]    = 0x00;  /* User Defined SHS1 C */
298         table[KS_CMDE]     = 0x00;  /* Command Register E */
299         table[KS_VSDEL]    = 0x00;  /* VS Delay Control */
300         /* Command Register F, update -immediately- */
301         /* (there might come no vsync)*/
302         table[KS_CMDF]     = 0x02;
303 }
304
305
306 /* We need to manually read because of a bug in the KS0127 chip.
307  *
308  * An explanation from kayork@mail.utexas.edu:
309  *
310  * During I2C reads, the KS0127 only samples for a stop condition
311  * during the place where the acknoledge bit should be. Any standard
312  * I2C implementation (correctly) throws in another clock transition
313  * at the 9th bit, and the KS0127 will not recognize the stop condition
314  * and will continue to clock out data.
315  *
316  * So we have to do the read ourself.  Big deal.
317            workaround in i2c-algo-bit
318  */
319
320
321 static u8 ks0127_read(struct ks0127 *ks, u8 reg)
322 {
323         struct i2c_client *c = ks->client;
324         char val = 0;
325         struct i2c_msg msgs[] = {
326                 {c->addr, 0, sizeof(reg), &reg},
327                 {c->addr, I2C_M_RD | I2C_M_NO_RD_ACK, sizeof(val), &val}};
328         int ret;
329
330         ret = i2c_transfer(c->adapter, msgs, ARRAY_SIZE(msgs));
331         if (ret != ARRAY_SIZE(msgs))
332                 dprintk("ks0127_write error\n");
333
334         return val;
335 }
336
337
338 static void ks0127_write(struct ks0127 *ks, u8 reg, u8 val)
339 {
340         char msg[] = {reg, val};
341
342         if (i2c_master_send(ks->client, msg, sizeof(msg)) != sizeof(msg))
343                 dprintk("ks0127_write error\n");
344
345         ks->regs[reg] = val;
346 }
347
348
349 /* generic bit-twiddling */
350 static void ks0127_and_or(struct ks0127 *ks, u8 reg, u8 and_v, u8 or_v)
351 {
352         u8 val = ks->regs[reg];
353         val = (val & and_v) | or_v;
354         ks0127_write(ks, reg, val);
355 }
356
357
358
359 /****************************************************************************
360 * ks0127 private api
361 ****************************************************************************/
362 static void ks0127_reset(struct ks0127* ks)
363 {
364         int i;
365         u8 *table = reg_defaults;
366
367         ks->ks_type = KS_TYPE_UNKNOWN;
368
369         dprintk("ks0127: reset\n");
370         msleep(1);
371
372         /* initialize all registers to known values */
373         /* (except STAT, 0x21, 0x22, TEST and 0x38,0x39) */
374
375         for(i = 1; i < 33; i++)
376                 ks0127_write(ks, i, table[i]);
377
378         for(i = 35; i < 40; i++)
379                 ks0127_write(ks, i, table[i]);
380
381         for(i = 41; i < 56; i++)
382                 ks0127_write(ks, i, table[i]);
383
384         for(i = 58; i < 64; i++)
385                 ks0127_write(ks, i, table[i]);
386
387
388         if ((ks0127_read(ks, KS_STAT) & 0x80) == 0) {
389                 ks->ks_type = KS_TYPE_0122S;
390                 dprintk("ks0127: ks0122s Found\n");
391                 return;
392         }
393
394         switch(ks0127_read(ks, KS_CMDE) & 0x0f) {
395
396         case 0:
397                 ks->ks_type = KS_TYPE_0127;
398                 dprintk("ks0127: ks0127 found\n");
399                 break;
400
401         case 9:
402                 ks->ks_type = KS_TYPE_0127B;
403                 dprintk("ks0127: ks0127B Revision A found\n");
404                 break;
405
406         default:
407                 dprintk("ks0127: unknown revision\n");
408                 break;
409         }
410 }
411
412 static int ks0127_command(struct i2c_client *client,
413                           unsigned int cmd, void *arg)
414 {
415         struct ks0127 *ks = i2c_get_clientdata(client);
416
417         int             *iarg = (int*)arg;
418
419         int             status;
420
421         if (!ks)
422                 return -ENODEV;
423
424         switch (cmd) {
425
426         case DECODER_INIT:
427                 dprintk("ks0127: command DECODER_INIT\n");
428                 ks0127_reset(ks);
429                 break;
430
431         case DECODER_SET_INPUT:
432                 switch(*iarg) {
433                 case KS_INPUT_COMPOSITE_1:
434                 case KS_INPUT_COMPOSITE_2:
435                 case KS_INPUT_COMPOSITE_3:
436                 case KS_INPUT_COMPOSITE_4:
437                 case KS_INPUT_COMPOSITE_5:
438                 case KS_INPUT_COMPOSITE_6:
439                         dprintk("ks0127: command DECODER_SET_INPUT %d: "
440                                 "Composite\n", *iarg);
441                         /* autodetect 50/60 Hz */
442                         ks0127_and_or(ks, KS_CMDA,   0xfc, 0x00);
443                         /* VSE=0 */
444                         ks0127_and_or(ks, KS_CMDA,   ~0x40, 0x00);
445                         /* set input line */
446                         ks0127_and_or(ks, KS_CMDB,   0xb0, *iarg);
447                         /* non-freerunning mode */
448                         ks0127_and_or(ks, KS_CMDC,   0x70, 0x0a);
449                         /* analog input */
450                         ks0127_and_or(ks, KS_CMDD,   0x03, 0x00);
451                         /* enable chroma demodulation */
452                         ks0127_and_or(ks, KS_CTRACK, 0xcf, 0x00);
453                         /* chroma trap, HYBWR=1 */
454                         ks0127_and_or(ks, KS_LUMA,   0x00,
455                                        (reg_defaults[KS_LUMA])|0x0c);
456                         /* scaler fullbw, luma comb off */
457                         ks0127_and_or(ks, KS_VERTIA, 0x08, 0x81);
458                         /* manual chroma comb .25 .5 .25 */
459                         ks0127_and_or(ks, KS_VERTIC, 0x0f, 0x90);
460
461                         /* chroma path delay */
462                         ks0127_and_or(ks, KS_CHROMB, 0x0f, 0x90);
463
464                         ks0127_write(ks, KS_UGAIN, reg_defaults[KS_UGAIN]);
465                         ks0127_write(ks, KS_VGAIN, reg_defaults[KS_VGAIN]);
466                         ks0127_write(ks, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
467                         ks0127_write(ks, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
468                         break;
469
470                 case KS_INPUT_SVIDEO_1:
471                 case KS_INPUT_SVIDEO_2:
472                 case KS_INPUT_SVIDEO_3:
473                         dprintk("ks0127: command DECODER_SET_INPUT %d: "
474                                 "S-Video\n", *iarg);
475                         /* autodetect 50/60 Hz */
476                         ks0127_and_or(ks, KS_CMDA,   0xfc, 0x00);
477                         /* VSE=0 */
478                         ks0127_and_or(ks, KS_CMDA,   ~0x40, 0x00);
479                         /* set input line */
480                         ks0127_and_or(ks, KS_CMDB,   0xb0, *iarg);
481                         /* non-freerunning mode */
482                         ks0127_and_or(ks, KS_CMDC,   0x70, 0x0a);
483                         /* analog input */
484                         ks0127_and_or(ks, KS_CMDD,   0x03, 0x00);
485                         /* enable chroma demodulation */
486                         ks0127_and_or(ks, KS_CTRACK, 0xcf, 0x00);
487                         ks0127_and_or(ks, KS_LUMA, 0x00,
488                                        reg_defaults[KS_LUMA]);
489                         /* disable luma comb */
490                         ks0127_and_or(ks, KS_VERTIA, 0x08,
491                                        (reg_defaults[KS_VERTIA]&0xf0)|0x01);
492                         ks0127_and_or(ks, KS_VERTIC, 0x0f,
493                                        reg_defaults[KS_VERTIC]&0xf0);
494
495                         ks0127_and_or(ks, KS_CHROMB, 0x0f,
496                                        reg_defaults[KS_CHROMB]&0xf0);
497
498                         ks0127_write(ks, KS_UGAIN, reg_defaults[KS_UGAIN]);
499                         ks0127_write(ks, KS_VGAIN, reg_defaults[KS_VGAIN]);
500                         ks0127_write(ks, KS_UVOFFH, reg_defaults[KS_UVOFFH]);
501                         ks0127_write(ks, KS_UVOFFL, reg_defaults[KS_UVOFFL]);
502                         break;
503
504                 case KS_INPUT_YUV656:
505                         dprintk("ks0127: command DECODER_SET_INPUT 15: "
506                                 "YUV656\n");
507                         if (ks->norm == VIDEO_MODE_NTSC ||
508                             ks->norm == KS_STD_PAL_M)
509                                 /* force 60 Hz */
510                                 ks0127_and_or(ks, KS_CMDA,   0xfc, 0x03);
511                         else
512                                 /* force 50 Hz */
513                                 ks0127_and_or(ks, KS_CMDA,   0xfc, 0x02);
514
515                         ks0127_and_or(ks, KS_CMDA,   0xff, 0x40); /* VSE=1 */
516                         /* set input line and VALIGN */
517                         ks0127_and_or(ks, KS_CMDB,   0xb0, (*iarg | 0x40));
518                         /* freerunning mode, */
519                         /* TSTGEN = 1 TSTGFR=11 TSTGPH=0 TSTGPK=0  VMEM=1*/
520                         ks0127_and_or(ks, KS_CMDC,   0x70, 0x87);
521                         /* digital input, SYNDIR = 0 INPSL=01 CLKDIR=0 EAV=0 */
522                         ks0127_and_or(ks, KS_CMDD,   0x03, 0x08);
523                         /* disable chroma demodulation */
524                         ks0127_and_or(ks, KS_CTRACK, 0xcf, 0x30);
525                         /* HYPK =01 CTRAP = 0 HYBWR=0 PED=1 RGBH=1 UNIT=1 */
526                         ks0127_and_or(ks, KS_LUMA,   0x00, 0x71);
527                         ks0127_and_or(ks, KS_VERTIC, 0x0f,
528                                        reg_defaults[KS_VERTIC]&0xf0);
529
530                         /* scaler fullbw, luma comb off */
531                         ks0127_and_or(ks, KS_VERTIA, 0x08, 0x81);
532
533                         ks0127_and_or(ks, KS_CHROMB, 0x0f,
534                                        reg_defaults[KS_CHROMB]&0xf0);
535
536                         ks0127_and_or(ks, KS_CON, 0x00, 0x00);
537                         ks0127_and_or(ks, KS_BRT, 0x00, 32);    /* spec: 34 */
538                                 /* spec: 229 (e5) */
539                         ks0127_and_or(ks, KS_SAT, 0x00, 0xe8);
540                         ks0127_and_or(ks, KS_HUE, 0x00, 0);
541
542                         ks0127_and_or(ks, KS_UGAIN, 0x00, 238);
543                         ks0127_and_or(ks, KS_VGAIN, 0x00, 0x00);
544
545                         /*UOFF:0x30, VOFF:0x30, TSTCGN=1 */
546                         ks0127_and_or(ks, KS_UVOFFH, 0x00, 0x4f);
547                         ks0127_and_or(ks, KS_UVOFFL, 0x00, 0x00);
548                         break;
549
550                 default:
551                         dprintk("ks0127: command DECODER_SET_INPUT: "
552                                 "Unknown input %d\n", *iarg);
553                         break;
554                 }
555
556                 /* hack: CDMLPF sometimes spontaneously switches on; */
557                 /* force back off */
558                 ks0127_write(ks, KS_DEMOD, reg_defaults[KS_DEMOD]);
559                 break;
560
561         case DECODER_SET_OUTPUT:
562                 switch(*iarg) {
563                 case KS_OUTPUT_YUV656E:
564                         dprintk("ks0127: command DECODER_SET_OUTPUT: "
565                                 "OUTPUT_YUV656E (Missing)\n");
566                         return -EINVAL;
567                         break;
568
569                 case KS_OUTPUT_EXV:
570                         dprintk("ks0127: command DECODER_SET_OUTPUT: "
571                                 "OUTPUT_EXV\n");
572                         ks0127_and_or(ks, KS_OFMTA, 0xf0, 0x09);
573                         break;
574                 }
575                 break;
576
577         case DECODER_SET_NORM: //sam This block mixes old and new norm names...
578                 /* Set to automatic SECAM/Fsc mode */
579                 ks0127_and_or(ks, KS_DEMOD, 0xf0, 0x00);
580
581                 ks->norm = *iarg;
582                 switch(*iarg)
583                 {
584                 /* this is untested !! */
585                 /* It just detects PAL_N/NTSC_M (no special frequencies) */
586                 /* And you have to set the standard a second time afterwards */
587                 case VIDEO_MODE_AUTO:
588                         dprintk("ks0127: command DECODER_SET_NORM: AUTO\n");
589
590                         /* The chip determines the format */
591                         /* based on the current field rate */
592                         ks0127_and_or(ks, KS_CMDA,   0xfc, 0x00);
593                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x20);
594                         /* This is wrong for PAL ! As I said, */
595                         /* you need to set the standard once again !! */
596                         ks->format_height = 240;
597                         ks->format_width = 704;
598                         break;
599
600                 case VIDEO_MODE_NTSC:
601                         dprintk("ks0127: command DECODER_SET_NORM: NTSC_M\n");
602                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x20);
603                         ks->format_height = 240;
604                         ks->format_width = 704;
605                         break;
606
607                 case KS_STD_NTSC_N:
608                         dprintk("ks0127: command KS0127_SET_STANDARD: "
609                                 "NTSC_N (fixme)\n");
610                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x40);
611                         ks->format_height = 240;
612                         ks->format_width = 704;
613                         break;
614
615                 case VIDEO_MODE_PAL:
616                         dprintk("ks0127: command DECODER_SET_NORM: PAL_N\n");
617                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x20);
618                         ks->format_height = 290;
619                         ks->format_width = 704;
620                         break;
621
622                 case KS_STD_PAL_M:
623                         dprintk("ks0127: command KS0127_SET_STANDARD: "
624                                 "PAL_M (fixme)\n");
625                         ks0127_and_or(ks, KS_CHROMA, 0x9f, 0x40);
626                         ks->format_height = 290;
627                         ks->format_width = 704;
628                         break;
629
630                 case VIDEO_MODE_SECAM:
631                         dprintk("ks0127: command KS0127_SET_STANDARD: "
632                                 "SECAM\n");
633                         ks->format_height = 290;
634                         ks->format_width = 704;
635
636                         /* set to secam autodetection */
637                         ks0127_and_or(ks, KS_CHROMA, 0xdf, 0x20);
638                         ks0127_and_or(ks, KS_DEMOD, 0xf0, 0x00);
639                         schedule_timeout_interruptible(HZ/10+1);
640
641                         /* did it autodetect? */
642                         if (ks0127_read(ks, KS_DEMOD) & 0x40)
643                                 break;
644
645                         /* force to secam mode */
646                         ks0127_and_or(ks, KS_DEMOD, 0xf0, 0x0f);
647                         break;
648
649                 default:
650                         dprintk("ks0127: command DECODER_SET_NORM: "
651                                 "Unknown norm %d\n", *iarg);
652                         break;
653                 }
654                 break;
655
656         case DECODER_SET_PICTURE:
657                 dprintk("ks0127: command DECODER_SET_PICTURE "
658                         "not yet supported (fixme)\n");
659                 return -EINVAL;
660
661         //sam todo: KS0127_SET_BRIGHTNESS: Merge into DECODER_SET_PICTURE
662         //sam todo: KS0127_SET_CONTRAST: Merge into DECODER_SET_PICTURE
663         //sam todo: KS0127_SET_HUE: Merge into DECODER_SET_PICTURE?
664         //sam todo: KS0127_SET_SATURATION: Merge into DECODER_SET_PICTURE
665         //sam todo: KS0127_SET_AGC_MODE:
666         //sam todo: KS0127_SET_AGC:
667         //sam todo: KS0127_SET_CHROMA_MODE:
668         //sam todo: KS0127_SET_PIXCLK_MODE:
669         //sam todo: KS0127_SET_GAMMA_MODE:
670         //sam todo: KS0127_SET_UGAIN:
671         //sam todo: KS0127_SET_VGAIN:
672         //sam todo: KS0127_SET_INVALY:
673         //sam todo: KS0127_SET_INVALU:
674         //sam todo: KS0127_SET_INVALV:
675         //sam todo: KS0127_SET_UNUSEY:
676         //sam todo: KS0127_SET_UNUSEU:
677         //sam todo: KS0127_SET_UNUSEV:
678         //sam todo: KS0127_SET_VSALIGN_MODE:
679
680         case DECODER_ENABLE_OUTPUT:
681         {
682
683                 int *iarg = arg;
684                 int enable = (*iarg != 0);
685                         if (enable) {
686                                 dprintk("ks0127: command "
687                                         "DECODER_ENABLE_OUTPUT on "
688                                         "(%d)\n", enable);
689                                 /* All output pins on */
690                                 ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x30);
691                                 /* Obey the OEN pin */
692                                 ks0127_and_or(ks, KS_CDEM, 0x7f, 0x00);
693                         } else {
694                                 dprintk("ks0127: command "
695                                         "DECODER_ENABLE_OUTPUT off "
696                                         "(%d)\n", enable);
697                                 /* Video output pins off */
698                                 ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x00);
699                                 /* Ignore the OEN pin */
700                                 ks0127_and_or(ks, KS_CDEM, 0x7f, 0x80);
701                         }
702         }
703                 break;
704
705         //sam todo: KS0127_SET_OUTPUT_MODE:
706         //sam todo: KS0127_SET_WIDTH:
707         //sam todo: KS0127_SET_HEIGHT:
708         //sam todo: KS0127_SET_HSCALE:
709
710         case DECODER_GET_STATUS:
711                 dprintk("ks0127: command DECODER_GET_STATUS\n");
712                 *iarg = 0;
713                 status = ks0127_read(ks, KS_STAT);
714                 if (!(status & 0x20))            /* NOVID not set */
715                         *iarg = (*iarg | DECODER_STATUS_GOOD);
716                 if ((status & 0x01))                  /* CLOCK set */
717                         *iarg = (*iarg | DECODER_STATUS_COLOR);
718                 if ((status & 0x08))               /* PALDET set */
719                         *iarg = (*iarg | DECODER_STATUS_PAL);
720                 else
721                         *iarg = (*iarg | DECODER_STATUS_NTSC);
722                 break;
723
724         //Catch any unknown command
725         default:
726                 dprintk("ks0127: command unknown: %04X\n", cmd);
727                 return -EINVAL;
728         }
729         return 0;
730 }
731
732
733
734
735 static int ks0127_probe(struct i2c_adapter *adapter);
736 static int ks0127_detach(struct i2c_client *client);
737 static int ks0127_command(struct i2c_client *client,
738                           unsigned int cmd, void *arg);
739
740
741
742 /* Addresses to scan */
743 static unsigned short normal_i2c[] = {I2C_KS0127_ADDON>>1,
744                                        I2C_KS0127_ONBOARD>>1, I2C_CLIENT_END};
745 static unsigned short probe[2] =        {I2C_CLIENT_END, I2C_CLIENT_END};
746 static unsigned short ignore[2] =       {I2C_CLIENT_END, I2C_CLIENT_END};
747 static struct i2c_client_address_data addr_data = {
748         normal_i2c,
749         probe,
750         ignore,
751 };
752
753 static struct i2c_driver i2c_driver_ks0127 = {
754         .driver.name = "ks0127",
755         .id             = I2C_DRIVERID_KS0127,
756         .attach_adapter = ks0127_probe,
757         .detach_client  = ks0127_detach,
758         .command        = ks0127_command
759 };
760
761 static struct i2c_client ks0127_client_tmpl =
762 {
763         .name = "(ks0127 unset)",
764         .addr = 0,
765         .adapter = NULL,
766         .driver = &i2c_driver_ks0127,
767         .usage_count = 0
768 };
769
770 static int ks0127_found_proc(struct i2c_adapter *adapter, int addr, int kind)
771 {
772         struct ks0127 *ks;
773         struct i2c_client *client;
774
775         client = kzalloc(sizeof(*client), GFP_KERNEL);
776         if (client == NULL)
777                 return -ENOMEM;
778         memcpy(client, &ks0127_client_tmpl, sizeof(*client));
779
780         ks = kzalloc(sizeof(*ks), GFP_KERNEL);
781         if (ks == NULL) {
782                 kfree(client);
783                 return -ENOMEM;
784         }
785
786         i2c_set_clientdata(client, ks);
787         client->adapter = adapter;
788         client->addr = addr;
789         sprintf(client->name, "ks0127-%02x", adapter->id);
790
791         ks->client = client;
792         ks->addr = addr;
793         ks->ks_type = KS_TYPE_UNKNOWN;
794
795         /* power up */
796         ks0127_write(ks, KS_CMDA, 0x2c);
797         mdelay(10);
798
799         /* reset the device */
800         ks0127_reset(ks);
801         printk(KERN_INFO "ks0127: attach: %s video decoder\n",
802                ks->addr==(I2C_KS0127_ADDON>>1) ? "addon" : "on-board");
803
804         i2c_attach_client(client);
805         return 0;
806 }
807
808
809 static int ks0127_probe(struct i2c_adapter *adapter)
810 {
811         if (adapter->id == I2C_HW_B_ZR36067)
812                 return i2c_probe(adapter, &addr_data, ks0127_found_proc);
813         return 0;
814 }
815
816 static int ks0127_detach(struct i2c_client *client)
817 {
818         struct ks0127 *ks = i2c_get_clientdata(client);
819
820         ks0127_write(ks, KS_OFMTA, 0x20); /*tristate*/
821         ks0127_write(ks, KS_CMDA, 0x2c | 0x80); /* power down */
822
823         i2c_detach_client(client);
824         kfree(ks);
825         kfree(client);
826
827         dprintk("ks0127: detach\n");
828         return 0;
829 }
830
831
832 static int __devinit ks0127_init_module(void)
833 {
834         init_reg_defaults();
835         return i2c_add_driver(&i2c_driver_ks0127);
836 }
837
838 static void __devexit ks0127_cleanup_module(void)
839 {
840         i2c_del_driver(&i2c_driver_ks0127);
841 }
842
843
844 module_init(ks0127_init_module);
845 module_exit(ks0127_cleanup_module);