Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...
[linux-2.6] / drivers / media / video / cx18 / cx18-av-core.c
1 /*
2  *  cx18 ADEC audio functions
3  *
4  *  Derived from cx25840-core.c
5  *
6  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
7  *  Copyright (C) 2008  Andy Walls <awalls@radix.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., 51 Franklin Street, Fifth Floor, Boston, MA
22  *  02110-1301, USA.
23  */
24
25 #include "cx18-driver.h"
26 #include "cx18-io.h"
27
28 int cx18_av_write(struct cx18 *cx, u16 addr, u8 value)
29 {
30         u32 reg = 0xc40000 + (addr & ~3);
31         u32 mask = 0xff;
32         int shift = (addr & 3) * 8;
33         u32 x = cx18_read_reg(cx, reg);
34
35         x = (x & ~(mask << shift)) | ((u32)value << shift);
36         cx18_write_reg(cx, x, reg);
37         return 0;
38 }
39
40 int cx18_av_write_expect(struct cx18 *cx, u16 addr, u8 value, u8 eval, u8 mask)
41 {
42         u32 reg = 0xc40000 + (addr & ~3);
43         int shift = (addr & 3) * 8;
44         u32 x = cx18_read_reg(cx, reg);
45
46         x = (x & ~((u32)0xff << shift)) | ((u32)value << shift);
47         cx18_write_reg_expect(cx, x, reg,
48                                 ((u32)eval << shift), ((u32)mask << shift));
49         return 0;
50 }
51
52 int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value)
53 {
54         cx18_write_reg(cx, value, 0xc40000 + addr);
55         return 0;
56 }
57
58 int
59 cx18_av_write4_expect(struct cx18 *cx, u16 addr, u32 value, u32 eval, u32 mask)
60 {
61         cx18_write_reg_expect(cx, value, 0xc40000 + addr, eval, mask);
62         return 0;
63 }
64
65 int cx18_av_write4_noretry(struct cx18 *cx, u16 addr, u32 value)
66 {
67         cx18_write_reg_noretry(cx, value, 0xc40000 + addr);
68         return 0;
69 }
70
71 u8 cx18_av_read(struct cx18 *cx, u16 addr)
72 {
73         u32 x = cx18_read_reg(cx, 0xc40000 + (addr & ~3));
74         int shift = (addr & 3) * 8;
75
76         return (x >> shift) & 0xff;
77 }
78
79 u32 cx18_av_read4(struct cx18 *cx, u16 addr)
80 {
81         return cx18_read_reg(cx, 0xc40000 + addr);
82 }
83
84 int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned and_mask,
85                    u8 or_value)
86 {
87         return cx18_av_write(cx, addr,
88                              (cx18_av_read(cx, addr) & and_mask) |
89                              or_value);
90 }
91
92 int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 and_mask,
93                    u32 or_value)
94 {
95         return cx18_av_write4(cx, addr,
96                              (cx18_av_read4(cx, addr) & and_mask) |
97                              or_value);
98 }
99
100 /* ----------------------------------------------------------------------- */
101
102 static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
103                                         enum cx18_av_audio_input aud_input);
104 static void log_audio_status(struct cx18 *cx);
105 static void log_video_status(struct cx18 *cx);
106
107 /* ----------------------------------------------------------------------- */
108
109 static void cx18_av_initialize(struct cx18 *cx)
110 {
111         struct cx18_av_state *state = &cx->av_state;
112         u32 v;
113
114         cx18_av_loadfw(cx);
115         /* Stop 8051 code execution */
116         cx18_av_write4_expect(cx, CXADEC_DL_CTL, 0x03000000,
117                                                  0x03000000, 0x13000000);
118
119         /* initallize the PLL by toggling sleep bit */
120         v = cx18_av_read4(cx, CXADEC_HOST_REG1);
121         /* enable sleep mode - register appears to be read only... */
122         cx18_av_write4_expect(cx, CXADEC_HOST_REG1, v | 1, v, 0xfffe);
123         /* disable sleep mode */
124         cx18_av_write4_expect(cx, CXADEC_HOST_REG1, v & 0xfffe,
125                                                     v & 0xfffe, 0xffff);
126
127         /* initialize DLLs */
128         v = cx18_av_read4(cx, CXADEC_DLL1_DIAG_CTRL) & 0xE1FFFEFF;
129         /* disable FLD */
130         cx18_av_write4(cx, CXADEC_DLL1_DIAG_CTRL, v);
131         /* enable FLD */
132         cx18_av_write4(cx, CXADEC_DLL1_DIAG_CTRL, v | 0x10000100);
133
134         v = cx18_av_read4(cx, CXADEC_DLL2_DIAG_CTRL) & 0xE1FFFEFF;
135         /* disable FLD */
136         cx18_av_write4(cx, CXADEC_DLL2_DIAG_CTRL, v);
137         /* enable FLD */
138         cx18_av_write4(cx, CXADEC_DLL2_DIAG_CTRL, v | 0x06000100);
139
140         /* set analog bias currents. Set Vreg to 1.20V. */
141         cx18_av_write4(cx, CXADEC_AFE_DIAG_CTRL1, 0x000A1802);
142
143         v = cx18_av_read4(cx, CXADEC_AFE_DIAG_CTRL3) | 1;
144         /* enable TUNE_FIL_RST */
145         cx18_av_write4_expect(cx, CXADEC_AFE_DIAG_CTRL3, v, v, 0x03009F0F);
146         /* disable TUNE_FIL_RST */
147         cx18_av_write4_expect(cx, CXADEC_AFE_DIAG_CTRL3,
148                               v & 0xFFFFFFFE, v & 0xFFFFFFFE, 0x03009F0F);
149
150         /* enable 656 output */
151         cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x040C00);
152
153         /* video output drive strength */
154         cx18_av_and_or4(cx, CXADEC_PIN_CTRL2, ~0, 0x2);
155
156         /* reset video */
157         cx18_av_write4(cx, CXADEC_SOFT_RST_CTRL, 0x8000);
158         cx18_av_write4(cx, CXADEC_SOFT_RST_CTRL, 0);
159
160         /* set video to auto-detect */
161         /* Clear bits 11-12 to enable slow locking mode.  Set autodetect mode */
162         /* set the comb notch = 1 */
163         cx18_av_and_or4(cx, CXADEC_MODE_CTRL, 0xFFF7E7F0, 0x02040800);
164
165         /* Enable wtw_en in CRUSH_CTRL (Set bit 22) */
166         /* Enable maj_sel in CRUSH_CTRL (Set bit 20) */
167         cx18_av_and_or4(cx, CXADEC_CRUSH_CTRL, ~0, 0x00500000);
168
169         /* Set VGA_TRACK_RANGE to 0x20 */
170         cx18_av_and_or4(cx, CXADEC_DFE_CTRL2, 0xFFFF00FF, 0x00002000);
171
172         /* Enable VBI capture */
173         cx18_av_write4(cx, CXADEC_OUT_CTRL1, 0x4010253F);
174         /* cx18_av_write4(cx, CXADEC_OUT_CTRL1, 0x4010253E); */
175
176         /* Set the video input.
177            The setting in MODE_CTRL gets lost when we do the above setup */
178         /* EncSetSignalStd(dwDevNum, pEnc->dwSigStd); */
179         /* EncSetVideoInput(dwDevNum, pEnc->VidIndSelection); */
180
181         v = cx18_av_read4(cx, CXADEC_AFE_CTRL);
182         v &= 0xFFFBFFFF;            /* turn OFF bit 18 for droop_comp_ch1 */
183         v &= 0xFFFF7FFF;            /* turn OFF bit 9 for clamp_sel_ch1 */
184         v &= 0xFFFFFFFE;            /* turn OFF bit 0 for 12db_ch1 */
185         /* v |= 0x00000001;*/            /* turn ON bit 0 for 12db_ch1 */
186         cx18_av_write4(cx, CXADEC_AFE_CTRL, v);
187
188 /*      if(dwEnable && dw3DCombAvailable) { */
189 /*              CxDevWrReg(CXADEC_SRC_COMB_CFG, 0x7728021F); */
190 /*    } else { */
191 /*              CxDevWrReg(CXADEC_SRC_COMB_CFG, 0x6628021F); */
192 /*    } */
193         cx18_av_write4(cx, CXADEC_SRC_COMB_CFG, 0x6628021F);
194         state->default_volume = 228 - cx18_av_read(cx, 0x8d4);
195         state->default_volume = ((state->default_volume / 2) + 23) << 9;
196 }
197
198 /* ----------------------------------------------------------------------- */
199
200 void cx18_av_std_setup(struct cx18 *cx)
201 {
202         struct cx18_av_state *state = &cx->av_state;
203         v4l2_std_id std = state->std;
204         int hblank, hactive, burst, vblank, vactive, sc;
205         int vblank656, src_decimation;
206         int luma_lpf, uv_lpf, comb;
207         u32 pll_int, pll_frac, pll_post;
208
209         /* datasheet startup, step 8d */
210         if (std & ~V4L2_STD_NTSC)
211                 cx18_av_write(cx, 0x49f, 0x11);
212         else
213                 cx18_av_write(cx, 0x49f, 0x14);
214
215         if (std & V4L2_STD_625_50) {
216                 hblank = 132;
217                 hactive = 720;
218                 burst = 93;
219                 vblank = 36;
220                 vactive = 580;
221                 vblank656 = 40;
222                 src_decimation = 0x21f;
223
224                 luma_lpf = 2;
225                 if (std & V4L2_STD_PAL) {
226                         uv_lpf = 1;
227                         comb = 0x20;
228                         sc = 688739;
229                 } else if (std == V4L2_STD_PAL_Nc) {
230                         uv_lpf = 1;
231                         comb = 0x20;
232                         sc = 556453;
233                 } else { /* SECAM */
234                         uv_lpf = 0;
235                         comb = 0;
236                         sc = 672351;
237                 }
238         } else {
239                 hactive = 720;
240                 hblank = 122;
241                 vactive = 487;
242                 luma_lpf = 1;
243                 uv_lpf = 1;
244                 vblank = 26;
245                 vblank656 = 26;
246
247                 src_decimation = 0x21f;
248                 if (std == V4L2_STD_PAL_60) {
249                         burst = 0x5b;
250                         luma_lpf = 2;
251                         comb = 0x20;
252                         sc = 688739;
253                 } else if (std == V4L2_STD_PAL_M) {
254                         burst = 0x61;
255                         comb = 0x20;
256                         sc = 555452;
257                 } else {
258                         burst = 0x5b;
259                         comb = 0x66;
260                         sc = 556063;
261                 }
262         }
263
264         /* DEBUG: Displays configured PLL frequency */
265         pll_int = cx18_av_read(cx, 0x108);
266         pll_frac = cx18_av_read4(cx, 0x10c) & 0x1ffffff;
267         pll_post = cx18_av_read(cx, 0x109);
268         CX18_DEBUG_INFO("PLL regs = int: %u, frac: %u, post: %u\n",
269                         pll_int, pll_frac, pll_post);
270
271         if (pll_post) {
272                 int fin, fsc, pll;
273
274                 pll = (28636360L * ((((u64)pll_int) << 25) + pll_frac)) >> 25;
275                 pll /= pll_post;
276                 CX18_DEBUG_INFO("PLL = %d.%06d MHz\n",
277                                         pll / 1000000, pll % 1000000);
278                 CX18_DEBUG_INFO("PLL/8 = %d.%06d MHz\n",
279                                         pll / 8000000, (pll / 8) % 1000000);
280
281                 fin = ((u64)src_decimation * pll) >> 12;
282                 CX18_DEBUG_INFO("ADC Sampling freq = %d.%06d MHz\n",
283                                         fin / 1000000, fin % 1000000);
284
285                 fsc = (((u64)sc) * pll) >> 24L;
286                 CX18_DEBUG_INFO("Chroma sub-carrier freq = %d.%06d MHz\n",
287                                         fsc / 1000000, fsc % 1000000);
288
289                 CX18_DEBUG_INFO("hblank %i, hactive %i, "
290                         "vblank %i , vactive %i, vblank656 %i, src_dec %i,"
291                         "burst 0x%02x, luma_lpf %i, uv_lpf %i, comb 0x%02x,"
292                         " sc 0x%06x\n",
293                         hblank, hactive, vblank, vactive, vblank656,
294                         src_decimation, burst, luma_lpf, uv_lpf, comb, sc);
295         }
296
297         /* Sets horizontal blanking delay and active lines */
298         cx18_av_write(cx, 0x470, hblank);
299         cx18_av_write(cx, 0x471, 0xff & (((hblank >> 8) & 0x3) |
300                                                 (hactive << 4)));
301         cx18_av_write(cx, 0x472, hactive >> 4);
302
303         /* Sets burst gate delay */
304         cx18_av_write(cx, 0x473, burst);
305
306         /* Sets vertical blanking delay and active duration */
307         cx18_av_write(cx, 0x474, vblank);
308         cx18_av_write(cx, 0x475, 0xff & (((vblank >> 8) & 0x3) |
309                                                 (vactive << 4)));
310         cx18_av_write(cx, 0x476, vactive >> 4);
311         cx18_av_write(cx, 0x477, vblank656);
312
313         /* Sets src decimation rate */
314         cx18_av_write(cx, 0x478, 0xff & src_decimation);
315         cx18_av_write(cx, 0x479, 0xff & (src_decimation >> 8));
316
317         /* Sets Luma and UV Low pass filters */
318         cx18_av_write(cx, 0x47a, luma_lpf << 6 | ((uv_lpf << 4) & 0x30));
319
320         /* Enables comb filters */
321         cx18_av_write(cx, 0x47b, comb);
322
323         /* Sets SC Step*/
324         cx18_av_write(cx, 0x47c, sc);
325         cx18_av_write(cx, 0x47d, 0xff & sc >> 8);
326         cx18_av_write(cx, 0x47e, 0xff & sc >> 16);
327
328         /* Sets VBI parameters */
329         if (std & V4L2_STD_625_50) {
330                 cx18_av_write(cx, 0x47f, 0x01);
331                 state->vbi_line_offset = 5;
332         } else {
333                 cx18_av_write(cx, 0x47f, 0x00);
334                 state->vbi_line_offset = 8;
335         }
336 }
337
338 /* ----------------------------------------------------------------------- */
339
340 static void input_change(struct cx18 *cx)
341 {
342         struct cx18_av_state *state = &cx->av_state;
343         v4l2_std_id std = state->std;
344         u8 v;
345
346         /* Follow step 8c and 8d of section 3.16 in the cx18_av datasheet */
347         cx18_av_write(cx, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
348         cx18_av_and_or(cx, 0x401, ~0x60, 0);
349         cx18_av_and_or(cx, 0x401, ~0x60, 0x60);
350
351         if (std & V4L2_STD_525_60) {
352                 if (std == V4L2_STD_NTSC_M_JP) {
353                         /* Japan uses EIAJ audio standard */
354                         cx18_av_write_expect(cx, 0x808, 0xf7, 0xf7, 0xff);
355                         cx18_av_write_expect(cx, 0x80b, 0x02, 0x02, 0x3f);
356                 } else if (std == V4L2_STD_NTSC_M_KR) {
357                         /* South Korea uses A2 audio standard */
358                         cx18_av_write_expect(cx, 0x808, 0xf8, 0xf8, 0xff);
359                         cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
360                 } else {
361                         /* Others use the BTSC audio standard */
362                         cx18_av_write_expect(cx, 0x808, 0xf6, 0xf6, 0xff);
363                         cx18_av_write_expect(cx, 0x80b, 0x01, 0x01, 0x3f);
364                 }
365         } else if (std & V4L2_STD_PAL) {
366                 /* Follow tuner change procedure for PAL */
367                 cx18_av_write_expect(cx, 0x808, 0xff, 0xff, 0xff);
368                 cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
369         } else if (std & V4L2_STD_SECAM) {
370                 /* Select autodetect for SECAM */
371                 cx18_av_write_expect(cx, 0x808, 0xff, 0xff, 0xff);
372                 cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
373         }
374
375         v = cx18_av_read(cx, 0x803);
376         if (v & 0x10) {
377                 /* restart audio decoder microcontroller */
378                 v &= ~0x10;
379                 cx18_av_write_expect(cx, 0x803, v, v, 0x1f);
380                 v |= 0x10;
381                 cx18_av_write_expect(cx, 0x803, v, v, 0x1f);
382         }
383 }
384
385 static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
386                                         enum cx18_av_audio_input aud_input)
387 {
388         struct cx18_av_state *state = &cx->av_state;
389         u8 is_composite = (vid_input >= CX18_AV_COMPOSITE1 &&
390                            vid_input <= CX18_AV_COMPOSITE8);
391         u8 reg;
392         u8 v;
393
394         CX18_DEBUG_INFO("decoder set video input %d, audio input %d\n",
395                         vid_input, aud_input);
396
397         if (is_composite) {
398                 reg = 0xf0 + (vid_input - CX18_AV_COMPOSITE1);
399         } else {
400                 int luma = vid_input & 0xf0;
401                 int chroma = vid_input & 0xf00;
402
403                 if ((vid_input & ~0xff0) ||
404                     luma < CX18_AV_SVIDEO_LUMA1 ||
405                     luma > CX18_AV_SVIDEO_LUMA8 ||
406                     chroma < CX18_AV_SVIDEO_CHROMA4 ||
407                     chroma > CX18_AV_SVIDEO_CHROMA8) {
408                         CX18_ERR("0x%04x is not a valid video input!\n",
409                                         vid_input);
410                         return -EINVAL;
411                 }
412                 reg = 0xf0 + ((luma - CX18_AV_SVIDEO_LUMA1) >> 4);
413                 if (chroma >= CX18_AV_SVIDEO_CHROMA7) {
414                         reg &= 0x3f;
415                         reg |= (chroma - CX18_AV_SVIDEO_CHROMA7) >> 2;
416                 } else {
417                         reg &= 0xcf;
418                         reg |= (chroma - CX18_AV_SVIDEO_CHROMA4) >> 4;
419                 }
420         }
421
422         switch (aud_input) {
423         case CX18_AV_AUDIO_SERIAL1:
424         case CX18_AV_AUDIO_SERIAL2:
425                 /* do nothing, use serial audio input */
426                 break;
427         case CX18_AV_AUDIO4: reg &= ~0x30; break;
428         case CX18_AV_AUDIO5: reg &= ~0x30; reg |= 0x10; break;
429         case CX18_AV_AUDIO6: reg &= ~0x30; reg |= 0x20; break;
430         case CX18_AV_AUDIO7: reg &= ~0xc0; break;
431         case CX18_AV_AUDIO8: reg &= ~0xc0; reg |= 0x40; break;
432
433         default:
434                 CX18_ERR("0x%04x is not a valid audio input!\n", aud_input);
435                 return -EINVAL;
436         }
437
438         cx18_av_write_expect(cx, 0x103, reg, reg, 0xf7);
439         /* Set INPUT_MODE to Composite (0) or S-Video (1) */
440         cx18_av_and_or(cx, 0x401, ~0x6, is_composite ? 0 : 0x02);
441
442         /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
443         v = cx18_av_read(cx, 0x102);
444         if (reg & 0x80)
445                 v &= ~0x2;
446         else
447                 v |= 0x2;
448         /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
449         if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30)
450                 v |= 0x4;
451         else
452                 v &= ~0x4;
453         cx18_av_write_expect(cx, 0x102, v, v, 0x17);
454
455         /*cx18_av_and_or4(cx, 0x104, ~0x001b4180, 0x00004180);*/
456
457         state->vid_input = vid_input;
458         state->aud_input = aud_input;
459         cx18_av_audio_set_path(cx);
460         input_change(cx);
461         return 0;
462 }
463
464 /* ----------------------------------------------------------------------- */
465
466 static int set_v4lstd(struct cx18 *cx)
467 {
468         struct cx18_av_state *state = &cx->av_state;
469         u8 fmt = 0;     /* zero is autodetect */
470         u8 pal_m = 0;
471
472         /* First tests should be against specific std */
473         if (state->std == V4L2_STD_NTSC_M_JP) {
474                 fmt = 0x2;
475         } else if (state->std == V4L2_STD_NTSC_443) {
476                 fmt = 0x3;
477         } else if (state->std == V4L2_STD_PAL_M) {
478                 pal_m = 1;
479                 fmt = 0x5;
480         } else if (state->std == V4L2_STD_PAL_N) {
481                 fmt = 0x6;
482         } else if (state->std == V4L2_STD_PAL_Nc) {
483                 fmt = 0x7;
484         } else if (state->std == V4L2_STD_PAL_60) {
485                 fmt = 0x8;
486         } else {
487                 /* Then, test against generic ones */
488                 if (state->std & V4L2_STD_NTSC)
489                         fmt = 0x1;
490                 else if (state->std & V4L2_STD_PAL)
491                         fmt = 0x4;
492                 else if (state->std & V4L2_STD_SECAM)
493                         fmt = 0xc;
494         }
495
496         CX18_DEBUG_INFO("changing video std to fmt %i\n", fmt);
497
498         /* Follow step 9 of section 3.16 in the cx18_av datasheet.
499            Without this PAL may display a vertical ghosting effect.
500            This happens for example with the Yuan MPC622. */
501         if (fmt >= 4 && fmt < 8) {
502                 /* Set format to NTSC-M */
503                 cx18_av_and_or(cx, 0x400, ~0xf, 1);
504                 /* Turn off LCOMB */
505                 cx18_av_and_or(cx, 0x47b, ~6, 0);
506         }
507         cx18_av_and_or(cx, 0x400, ~0x2f, fmt | 0x20);
508         cx18_av_and_or(cx, 0x403, ~0x3, pal_m);
509         cx18_av_std_setup(cx);
510         input_change(cx);
511         return 0;
512 }
513
514 /* ----------------------------------------------------------------------- */
515
516 static int set_v4lctrl(struct cx18 *cx, struct v4l2_control *ctrl)
517 {
518         switch (ctrl->id) {
519         case V4L2_CID_BRIGHTNESS:
520                 if (ctrl->value < 0 || ctrl->value > 255) {
521                         CX18_ERR("invalid brightness setting %d\n",
522                                     ctrl->value);
523                         return -ERANGE;
524                 }
525
526                 cx18_av_write(cx, 0x414, ctrl->value - 128);
527                 break;
528
529         case V4L2_CID_CONTRAST:
530                 if (ctrl->value < 0 || ctrl->value > 127) {
531                         CX18_ERR("invalid contrast setting %d\n",
532                                     ctrl->value);
533                         return -ERANGE;
534                 }
535
536                 cx18_av_write(cx, 0x415, ctrl->value << 1);
537                 break;
538
539         case V4L2_CID_SATURATION:
540                 if (ctrl->value < 0 || ctrl->value > 127) {
541                         CX18_ERR("invalid saturation setting %d\n",
542                                     ctrl->value);
543                         return -ERANGE;
544                 }
545
546                 cx18_av_write(cx, 0x420, ctrl->value << 1);
547                 cx18_av_write(cx, 0x421, ctrl->value << 1);
548                 break;
549
550         case V4L2_CID_HUE:
551                 if (ctrl->value < -127 || ctrl->value > 127) {
552                         CX18_ERR("invalid hue setting %d\n", ctrl->value);
553                         return -ERANGE;
554                 }
555
556                 cx18_av_write(cx, 0x422, ctrl->value);
557                 break;
558
559         case V4L2_CID_AUDIO_VOLUME:
560         case V4L2_CID_AUDIO_BASS:
561         case V4L2_CID_AUDIO_TREBLE:
562         case V4L2_CID_AUDIO_BALANCE:
563         case V4L2_CID_AUDIO_MUTE:
564                 return cx18_av_audio(cx, VIDIOC_S_CTRL, ctrl);
565
566         default:
567                 return -EINVAL;
568         }
569
570         return 0;
571 }
572
573 static int get_v4lctrl(struct cx18 *cx, struct v4l2_control *ctrl)
574 {
575         switch (ctrl->id) {
576         case V4L2_CID_BRIGHTNESS:
577                 ctrl->value = (s8)cx18_av_read(cx, 0x414) + 128;
578                 break;
579         case V4L2_CID_CONTRAST:
580                 ctrl->value = cx18_av_read(cx, 0x415) >> 1;
581                 break;
582         case V4L2_CID_SATURATION:
583                 ctrl->value = cx18_av_read(cx, 0x420) >> 1;
584                 break;
585         case V4L2_CID_HUE:
586                 ctrl->value = (s8)cx18_av_read(cx, 0x422);
587                 break;
588         case V4L2_CID_AUDIO_VOLUME:
589         case V4L2_CID_AUDIO_BASS:
590         case V4L2_CID_AUDIO_TREBLE:
591         case V4L2_CID_AUDIO_BALANCE:
592         case V4L2_CID_AUDIO_MUTE:
593                 return cx18_av_audio(cx, VIDIOC_G_CTRL, ctrl);
594         default:
595                 return -EINVAL;
596         }
597
598         return 0;
599 }
600
601 /* ----------------------------------------------------------------------- */
602
603 static int get_v4lfmt(struct cx18 *cx, struct v4l2_format *fmt)
604 {
605         switch (fmt->type) {
606         case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
607                 return cx18_av_vbi(cx, VIDIOC_G_FMT, fmt);
608         default:
609                 return -EINVAL;
610         }
611
612         return 0;
613 }
614
615 static int set_v4lfmt(struct cx18 *cx, struct v4l2_format *fmt)
616 {
617         struct cx18_av_state *state = &cx->av_state;
618         struct v4l2_pix_format *pix;
619         int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
620         int is_50Hz = !(state->std & V4L2_STD_525_60);
621
622         switch (fmt->type) {
623         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
624                 pix = &(fmt->fmt.pix);
625
626                 Vsrc = (cx18_av_read(cx, 0x476) & 0x3f) << 4;
627                 Vsrc |= (cx18_av_read(cx, 0x475) & 0xf0) >> 4;
628
629                 Hsrc = (cx18_av_read(cx, 0x472) & 0x3f) << 4;
630                 Hsrc |= (cx18_av_read(cx, 0x471) & 0xf0) >> 4;
631
632                 Vlines = pix->height + (is_50Hz ? 4 : 7);
633
634                 if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
635                     (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
636                         CX18_ERR("%dx%d is not a valid size!\n",
637                                     pix->width, pix->height);
638                         return -ERANGE;
639                 }
640
641                 HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
642                 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
643                 VSC &= 0x1fff;
644
645                 if (pix->width >= 385)
646                         filter = 0;
647                 else if (pix->width > 192)
648                         filter = 1;
649                 else if (pix->width > 96)
650                         filter = 2;
651                 else
652                         filter = 3;
653
654                 CX18_DEBUG_INFO("decoder set size %dx%d -> scale  %ux%u\n",
655                             pix->width, pix->height, HSC, VSC);
656
657                 /* HSCALE=HSC */
658                 cx18_av_write(cx, 0x418, HSC & 0xff);
659                 cx18_av_write(cx, 0x419, (HSC >> 8) & 0xff);
660                 cx18_av_write(cx, 0x41a, HSC >> 16);
661                 /* VSCALE=VSC */
662                 cx18_av_write(cx, 0x41c, VSC & 0xff);
663                 cx18_av_write(cx, 0x41d, VSC >> 8);
664                 /* VS_INTRLACE=1 VFILT=filter */
665                 cx18_av_write(cx, 0x41e, 0x8 | filter);
666                 break;
667
668         case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
669                 return cx18_av_vbi(cx, VIDIOC_S_FMT, fmt);
670
671         case V4L2_BUF_TYPE_VBI_CAPTURE:
672                 return cx18_av_vbi(cx, VIDIOC_S_FMT, fmt);
673
674         default:
675                 return -EINVAL;
676         }
677
678         return 0;
679 }
680
681 /* ----------------------------------------------------------------------- */
682
683 int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg)
684 {
685         struct cx18_av_state *state = &cx->av_state;
686         struct v4l2_tuner *vt = arg;
687         struct v4l2_routing *route = arg;
688
689         /* ignore these commands */
690         switch (cmd) {
691         case TUNER_SET_TYPE_ADDR:
692                 return 0;
693         }
694
695         if (!state->is_initialized) {
696                 CX18_DEBUG_INFO("cmd %08x triggered fw load\n", cmd);
697                 /* initialize on first use */
698                 state->is_initialized = 1;
699                 cx18_av_initialize(cx);
700         }
701
702         switch (cmd) {
703         case VIDIOC_INT_DECODE_VBI_LINE:
704                 return cx18_av_vbi(cx, cmd, arg);
705
706         case VIDIOC_INT_AUDIO_CLOCK_FREQ:
707                 return cx18_av_audio(cx, cmd, arg);
708
709         case VIDIOC_STREAMON:
710                 CX18_DEBUG_INFO("enable output\n");
711                 cx18_av_write(cx, 0x115, 0x8c);
712                 cx18_av_write(cx, 0x116, 0x07);
713                 break;
714
715         case VIDIOC_STREAMOFF:
716                 CX18_DEBUG_INFO("disable output\n");
717                 cx18_av_write(cx, 0x115, 0x00);
718                 cx18_av_write(cx, 0x116, 0x00);
719                 break;
720
721         case VIDIOC_LOG_STATUS:
722                 log_video_status(cx);
723                 log_audio_status(cx);
724                 break;
725
726         case VIDIOC_G_CTRL:
727                 return get_v4lctrl(cx, (struct v4l2_control *)arg);
728
729         case VIDIOC_S_CTRL:
730                 return set_v4lctrl(cx, (struct v4l2_control *)arg);
731
732         case VIDIOC_QUERYCTRL:
733         {
734                 struct v4l2_queryctrl *qc = arg;
735
736                 switch (qc->id) {
737                 case V4L2_CID_BRIGHTNESS:
738                 case V4L2_CID_CONTRAST:
739                 case V4L2_CID_SATURATION:
740                 case V4L2_CID_HUE:
741                         return v4l2_ctrl_query_fill_std(qc);
742                 default:
743                         break;
744                 }
745
746                 switch (qc->id) {
747                 case V4L2_CID_AUDIO_VOLUME:
748                         return v4l2_ctrl_query_fill(qc, 0, 65535,
749                                 65535 / 100, state->default_volume);
750                 case V4L2_CID_AUDIO_MUTE:
751                 case V4L2_CID_AUDIO_BALANCE:
752                 case V4L2_CID_AUDIO_BASS:
753                 case V4L2_CID_AUDIO_TREBLE:
754                         return v4l2_ctrl_query_fill_std(qc);
755                 default:
756                         return -EINVAL;
757                 }
758                 return -EINVAL;
759         }
760
761         case VIDIOC_G_STD:
762                 *(v4l2_std_id *)arg = state->std;
763                 break;
764
765         case VIDIOC_S_STD:
766                 if (state->radio == 0 && state->std == *(v4l2_std_id *)arg)
767                         return 0;
768                 state->radio = 0;
769                 state->std = *(v4l2_std_id *)arg;
770                 return set_v4lstd(cx);
771
772         case AUDC_SET_RADIO:
773                 state->radio = 1;
774                 break;
775
776         case VIDIOC_INT_G_VIDEO_ROUTING:
777                 route->input = state->vid_input;
778                 route->output = 0;
779                 break;
780
781         case VIDIOC_INT_S_VIDEO_ROUTING:
782                 return set_input(cx, route->input, state->aud_input);
783
784         case VIDIOC_INT_G_AUDIO_ROUTING:
785                 route->input = state->aud_input;
786                 route->output = 0;
787                 break;
788
789         case VIDIOC_INT_S_AUDIO_ROUTING:
790                 return set_input(cx, state->vid_input, route->input);
791
792         case VIDIOC_S_FREQUENCY:
793                 input_change(cx);
794                 break;
795
796         case VIDIOC_G_TUNER:
797         {
798                 u8 vpres = cx18_av_read(cx, 0x40e) & 0x20;
799                 u8 mode;
800                 int val = 0;
801
802                 if (state->radio)
803                         break;
804
805                 vt->signal = vpres ? 0xffff : 0x0;
806
807                 vt->capability |=
808                     V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
809                     V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
810
811                 mode = cx18_av_read(cx, 0x804);
812
813                 /* get rxsubchans and audmode */
814                 if ((mode & 0xf) == 1)
815                         val |= V4L2_TUNER_SUB_STEREO;
816                 else
817                         val |= V4L2_TUNER_SUB_MONO;
818
819                 if (mode == 2 || mode == 4)
820                         val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
821
822                 if (mode & 0x10)
823                         val |= V4L2_TUNER_SUB_SAP;
824
825                 vt->rxsubchans = val;
826                 vt->audmode = state->audmode;
827                 break;
828         }
829
830         case VIDIOC_S_TUNER:
831         {
832                 u8 v;
833
834                 if (state->radio)
835                         break;
836
837                 v = cx18_av_read(cx, 0x809);
838                 v &= ~0xf;
839
840                 switch (vt->audmode) {
841                 case V4L2_TUNER_MODE_MONO:
842                         /* mono      -> mono
843                            stereo    -> mono
844                            bilingual -> lang1 */
845                         break;
846                 case V4L2_TUNER_MODE_STEREO:
847                 case V4L2_TUNER_MODE_LANG1:
848                         /* mono      -> mono
849                            stereo    -> stereo
850                            bilingual -> lang1 */
851                         v |= 0x4;
852                         break;
853                 case V4L2_TUNER_MODE_LANG1_LANG2:
854                         /* mono      -> mono
855                            stereo    -> stereo
856                            bilingual -> lang1/lang2 */
857                         v |= 0x7;
858                         break;
859                 case V4L2_TUNER_MODE_LANG2:
860                         /* mono      -> mono
861                            stereo    -> stereo
862                            bilingual -> lang2 */
863                         v |= 0x1;
864                         break;
865                 default:
866                         return -EINVAL;
867                 }
868                 cx18_av_write_expect(cx, 0x809, v, v, 0xff);
869                 state->audmode = vt->audmode;
870                 break;
871         }
872
873         case VIDIOC_G_FMT:
874                 return get_v4lfmt(cx, (struct v4l2_format *)arg);
875
876         case VIDIOC_S_FMT:
877                 return set_v4lfmt(cx, (struct v4l2_format *)arg);
878
879         case VIDIOC_INT_RESET:
880                 cx18_av_initialize(cx);
881                 break;
882
883         default:
884                 return -EINVAL;
885         }
886
887         return 0;
888 }
889
890 /* ----------------------------------------------------------------------- */
891
892 /* ----------------------------------------------------------------------- */
893
894 static void log_video_status(struct cx18 *cx)
895 {
896         static const char *const fmt_strs[] = {
897                 "0x0",
898                 "NTSC-M", "NTSC-J", "NTSC-4.43",
899                 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
900                 "0x9", "0xA", "0xB",
901                 "SECAM",
902                 "0xD", "0xE", "0xF"
903         };
904
905         struct cx18_av_state *state = &cx->av_state;
906         u8 vidfmt_sel = cx18_av_read(cx, 0x400) & 0xf;
907         u8 gen_stat1 = cx18_av_read(cx, 0x40d);
908         u8 gen_stat2 = cx18_av_read(cx, 0x40e);
909         int vid_input = state->vid_input;
910
911         CX18_INFO("Video signal:              %spresent\n",
912                     (gen_stat2 & 0x20) ? "" : "not ");
913         CX18_INFO("Detected format:           %s\n",
914                     fmt_strs[gen_stat1 & 0xf]);
915
916         CX18_INFO("Specified standard:        %s\n",
917                     vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
918
919         if (vid_input >= CX18_AV_COMPOSITE1 &&
920             vid_input <= CX18_AV_COMPOSITE8) {
921                 CX18_INFO("Specified video input:     Composite %d\n",
922                         vid_input - CX18_AV_COMPOSITE1 + 1);
923         } else {
924                 CX18_INFO("Specified video input:     S-Video (Luma In%d, Chroma In%d)\n",
925                         (vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
926         }
927
928         CX18_INFO("Specified audioclock freq: %d Hz\n", state->audclk_freq);
929 }
930
931 /* ----------------------------------------------------------------------- */
932
933 static void log_audio_status(struct cx18 *cx)
934 {
935         struct cx18_av_state *state = &cx->av_state;
936         u8 download_ctl = cx18_av_read(cx, 0x803);
937         u8 mod_det_stat0 = cx18_av_read(cx, 0x804);
938         u8 mod_det_stat1 = cx18_av_read(cx, 0x805);
939         u8 audio_config = cx18_av_read(cx, 0x808);
940         u8 pref_mode = cx18_av_read(cx, 0x809);
941         u8 afc0 = cx18_av_read(cx, 0x80b);
942         u8 mute_ctl = cx18_av_read(cx, 0x8d3);
943         int aud_input = state->aud_input;
944         char *p;
945
946         switch (mod_det_stat0) {
947         case 0x00: p = "mono"; break;
948         case 0x01: p = "stereo"; break;
949         case 0x02: p = "dual"; break;
950         case 0x04: p = "tri"; break;
951         case 0x10: p = "mono with SAP"; break;
952         case 0x11: p = "stereo with SAP"; break;
953         case 0x12: p = "dual with SAP"; break;
954         case 0x14: p = "tri with SAP"; break;
955         case 0xfe: p = "forced mode"; break;
956         default: p = "not defined"; break;
957         }
958         CX18_INFO("Detected audio mode:       %s\n", p);
959
960         switch (mod_det_stat1) {
961         case 0x00: p = "not defined"; break;
962         case 0x01: p = "EIAJ"; break;
963         case 0x02: p = "A2-M"; break;
964         case 0x03: p = "A2-BG"; break;
965         case 0x04: p = "A2-DK1"; break;
966         case 0x05: p = "A2-DK2"; break;
967         case 0x06: p = "A2-DK3"; break;
968         case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
969         case 0x08: p = "AM-L"; break;
970         case 0x09: p = "NICAM-BG"; break;
971         case 0x0a: p = "NICAM-DK"; break;
972         case 0x0b: p = "NICAM-I"; break;
973         case 0x0c: p = "NICAM-L"; break;
974         case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
975         case 0x0e: p = "IF FM Radio"; break;
976         case 0x0f: p = "BTSC"; break;
977         case 0x10: p = "detected chrominance"; break;
978         case 0xfd: p = "unknown audio standard"; break;
979         case 0xfe: p = "forced audio standard"; break;
980         case 0xff: p = "no detected audio standard"; break;
981         default: p = "not defined"; break;
982         }
983         CX18_INFO("Detected audio standard:   %s\n", p);
984         CX18_INFO("Audio muted:               %s\n",
985                     (mute_ctl & 0x2) ? "yes" : "no");
986         CX18_INFO("Audio microcontroller:     %s\n",
987                     (download_ctl & 0x10) ? "running" : "stopped");
988
989         switch (audio_config >> 4) {
990         case 0x00: p = "undefined"; break;
991         case 0x01: p = "BTSC"; break;
992         case 0x02: p = "EIAJ"; break;
993         case 0x03: p = "A2-M"; break;
994         case 0x04: p = "A2-BG"; break;
995         case 0x05: p = "A2-DK1"; break;
996         case 0x06: p = "A2-DK2"; break;
997         case 0x07: p = "A2-DK3"; break;
998         case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
999         case 0x09: p = "AM-L"; break;
1000         case 0x0a: p = "NICAM-BG"; break;
1001         case 0x0b: p = "NICAM-DK"; break;
1002         case 0x0c: p = "NICAM-I"; break;
1003         case 0x0d: p = "NICAM-L"; break;
1004         case 0x0e: p = "FM radio"; break;
1005         case 0x0f: p = "automatic detection"; break;
1006         default: p = "undefined"; break;
1007         }
1008         CX18_INFO("Configured audio standard: %s\n", p);
1009
1010         if ((audio_config >> 4) < 0xF) {
1011                 switch (audio_config & 0xF) {
1012                 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
1013                 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
1014                 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
1015                 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
1016                 case 0x04: p = "STEREO"; break;
1017                 case 0x05: p = "DUAL1 (AC)"; break;
1018                 case 0x06: p = "DUAL2 (BC)"; break;
1019                 case 0x07: p = "DUAL3 (AB)"; break;
1020                 default: p = "undefined";
1021                 }
1022                 CX18_INFO("Configured audio mode:     %s\n", p);
1023         } else {
1024                 switch (audio_config & 0xF) {
1025                 case 0x00: p = "BG"; break;
1026                 case 0x01: p = "DK1"; break;
1027                 case 0x02: p = "DK2"; break;
1028                 case 0x03: p = "DK3"; break;
1029                 case 0x04: p = "I"; break;
1030                 case 0x05: p = "L"; break;
1031                 case 0x06: p = "BTSC"; break;
1032                 case 0x07: p = "EIAJ"; break;
1033                 case 0x08: p = "A2-M"; break;
1034                 case 0x09: p = "FM Radio (4.5 MHz)"; break;
1035                 case 0x0a: p = "FM Radio (5.5 MHz)"; break;
1036                 case 0x0b: p = "S-Video"; break;
1037                 case 0x0f: p = "automatic standard and mode detection"; break;
1038                 default: p = "undefined"; break;
1039                 }
1040                 CX18_INFO("Configured audio system:   %s\n", p);
1041         }
1042
1043         if (aud_input)
1044                 CX18_INFO("Specified audio input:     Tuner (In%d)\n",
1045                                 aud_input);
1046         else
1047                 CX18_INFO("Specified audio input:     External\n");
1048
1049         switch (pref_mode & 0xf) {
1050         case 0: p = "mono/language A"; break;
1051         case 1: p = "language B"; break;
1052         case 2: p = "language C"; break;
1053         case 3: p = "analog fallback"; break;
1054         case 4: p = "stereo"; break;
1055         case 5: p = "language AC"; break;
1056         case 6: p = "language BC"; break;
1057         case 7: p = "language AB"; break;
1058         default: p = "undefined"; break;
1059         }
1060         CX18_INFO("Preferred audio mode:      %s\n", p);
1061
1062         if ((audio_config & 0xf) == 0xf) {
1063                 switch ((afc0 >> 3) & 0x1) {
1064                 case 0: p = "system DK"; break;
1065                 case 1: p = "system L"; break;
1066                 }
1067                 CX18_INFO("Selected 65 MHz format:    %s\n", p);
1068
1069                 switch (afc0 & 0x7) {
1070                 case 0: p = "Chroma"; break;
1071                 case 1: p = "BTSC"; break;
1072                 case 2: p = "EIAJ"; break;
1073                 case 3: p = "A2-M"; break;
1074                 case 4: p = "autodetect"; break;
1075                 default: p = "undefined"; break;
1076                 }
1077                 CX18_INFO("Selected 45 MHz format:    %s\n", p);
1078         }
1079 }