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-rw-r--r--drivers/media/video/cx18/cx18-av-core.c1401
1 files changed, 1401 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c
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index 00000000000..f164b7f610a
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+++ b/drivers/media/video/cx18/cx18-av-core.c
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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@md.metrocast.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 <media/v4l2-chip-ident.h>
26#include "cx18-driver.h"
27#include "cx18-io.h"
28#include "cx18-cards.h"
29
30int cx18_av_write(struct cx18 *cx, u16 addr, u8 value)
31{
32 u32 reg = 0xc40000 + (addr & ~3);
33 u32 mask = 0xff;
34 int shift = (addr & 3) * 8;
35 u32 x = cx18_read_reg(cx, reg);
36
37 x = (x & ~(mask << shift)) | ((u32)value << shift);
38 cx18_write_reg(cx, x, reg);
39 return 0;
40}
41
42int cx18_av_write_expect(struct cx18 *cx, u16 addr, u8 value, u8 eval, u8 mask)
43{
44 u32 reg = 0xc40000 + (addr & ~3);
45 int shift = (addr & 3) * 8;
46 u32 x = cx18_read_reg(cx, reg);
47
48 x = (x & ~((u32)0xff << shift)) | ((u32)value << shift);
49 cx18_write_reg_expect(cx, x, reg,
50 ((u32)eval << shift), ((u32)mask << shift));
51 return 0;
52}
53
54int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value)
55{
56 cx18_write_reg(cx, value, 0xc40000 + addr);
57 return 0;
58}
59
60int
61cx18_av_write4_expect(struct cx18 *cx, u16 addr, u32 value, u32 eval, u32 mask)
62{
63 cx18_write_reg_expect(cx, value, 0xc40000 + addr, eval, mask);
64 return 0;
65}
66
67int cx18_av_write4_noretry(struct cx18 *cx, u16 addr, u32 value)
68{
69 cx18_write_reg_noretry(cx, value, 0xc40000 + addr);
70 return 0;
71}
72
73u8 cx18_av_read(struct cx18 *cx, u16 addr)
74{
75 u32 x = cx18_read_reg(cx, 0xc40000 + (addr & ~3));
76 int shift = (addr & 3) * 8;
77
78 return (x >> shift) & 0xff;
79}
80
81u32 cx18_av_read4(struct cx18 *cx, u16 addr)
82{
83 return cx18_read_reg(cx, 0xc40000 + addr);
84}
85
86int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned and_mask,
87 u8 or_value)
88{
89 return cx18_av_write(cx, addr,
90 (cx18_av_read(cx, addr) & and_mask) |
91 or_value);
92}
93
94int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 and_mask,
95 u32 or_value)
96{
97 return cx18_av_write4(cx, addr,
98 (cx18_av_read4(cx, addr) & and_mask) |
99 or_value);
100}
101
102static void cx18_av_init(struct cx18 *cx)
103{
104 /*
105 * The crystal freq used in calculations in this driver will be
106 * 28.636360 MHz.
107 * Aim to run the PLLs' VCOs near 400 MHz to minimze errors.
108 */
109
110 /*
111 * VDCLK Integer = 0x0f, Post Divider = 0x04
112 * AIMCLK Integer = 0x0e, Post Divider = 0x16
113 */
114 cx18_av_write4(cx, CXADEC_PLL_CTRL1, 0x160e040f);
115
116 /* VDCLK Fraction = 0x2be2fe */
117 /* xtal * 0xf.15f17f0/4 = 108 MHz: 432 MHz before post divide */
118 cx18_av_write4(cx, CXADEC_VID_PLL_FRAC, 0x002be2fe);
119
120 /* AIMCLK Fraction = 0x05227ad */
121 /* xtal * 0xe.2913d68/0x16 = 48000 * 384: 406 MHz pre post-div*/
122 cx18_av_write4(cx, CXADEC_AUX_PLL_FRAC, 0x005227ad);
123
124 /* SA_MCLK_SEL=1, SA_MCLK_DIV=0x16 */
125 cx18_av_write(cx, CXADEC_I2S_MCLK, 0x56);
126}
127
128static void cx18_av_initialize(struct v4l2_subdev *sd)
129{
130 struct cx18_av_state *state = to_cx18_av_state(sd);
131 struct cx18 *cx = v4l2_get_subdevdata(sd);
132 int default_volume;
133 u32 v;
134
135 cx18_av_loadfw(cx);
136 /* Stop 8051 code execution */
137 cx18_av_write4_expect(cx, CXADEC_DL_CTL, 0x03000000,
138 0x03000000, 0x13000000);
139
140 /* initallize the PLL by toggling sleep bit */
141 v = cx18_av_read4(cx, CXADEC_HOST_REG1);
142 /* enable sleep mode - register appears to be read only... */
143 cx18_av_write4_expect(cx, CXADEC_HOST_REG1, v | 1, v, 0xfffe);
144 /* disable sleep mode */
145 cx18_av_write4_expect(cx, CXADEC_HOST_REG1, v & 0xfffe,
146 v & 0xfffe, 0xffff);
147
148 /* initialize DLLs */
149 v = cx18_av_read4(cx, CXADEC_DLL1_DIAG_CTRL) & 0xE1FFFEFF;
150 /* disable FLD */
151 cx18_av_write4(cx, CXADEC_DLL1_DIAG_CTRL, v);
152 /* enable FLD */
153 cx18_av_write4(cx, CXADEC_DLL1_DIAG_CTRL, v | 0x10000100);
154
155 v = cx18_av_read4(cx, CXADEC_DLL2_DIAG_CTRL) & 0xE1FFFEFF;
156 /* disable FLD */
157 cx18_av_write4(cx, CXADEC_DLL2_DIAG_CTRL, v);
158 /* enable FLD */
159 cx18_av_write4(cx, CXADEC_DLL2_DIAG_CTRL, v | 0x06000100);
160
161 /* set analog bias currents. Set Vreg to 1.20V. */
162 cx18_av_write4(cx, CXADEC_AFE_DIAG_CTRL1, 0x000A1802);
163
164 v = cx18_av_read4(cx, CXADEC_AFE_DIAG_CTRL3) | 1;
165 /* enable TUNE_FIL_RST */
166 cx18_av_write4_expect(cx, CXADEC_AFE_DIAG_CTRL3, v, v, 0x03009F0F);
167 /* disable TUNE_FIL_RST */
168 cx18_av_write4_expect(cx, CXADEC_AFE_DIAG_CTRL3,
169 v & 0xFFFFFFFE, v & 0xFFFFFFFE, 0x03009F0F);
170
171 /* enable 656 output */
172 cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x040C00);
173
174 /* video output drive strength */
175 cx18_av_and_or4(cx, CXADEC_PIN_CTRL2, ~0, 0x2);
176
177 /* reset video */
178 cx18_av_write4(cx, CXADEC_SOFT_RST_CTRL, 0x8000);
179 cx18_av_write4(cx, CXADEC_SOFT_RST_CTRL, 0);
180
181 /*
182 * Disable Video Auto-config of the Analog Front End and Video PLL.
183 *
184 * Since we only use BT.656 pixel mode, which works for both 525 and 625
185 * line systems, it's just easier for us to set registers
186 * 0x102 (CXADEC_CHIP_CTRL), 0x104-0x106 (CXADEC_AFE_CTRL),
187 * 0x108-0x109 (CXADEC_PLL_CTRL1), and 0x10c-0x10f (CXADEC_VID_PLL_FRAC)
188 * ourselves, than to run around cleaning up after the auto-config.
189 *
190 * (Note: my CX23418 chip doesn't seem to let the ACFG_DIS bit
191 * get set to 1, but OTOH, it doesn't seem to do AFE and VID PLL
192 * autoconfig either.)
193 *
194 * As a default, also turn off Dual mode for ADC2 and set ADC2 to CH3.
195 */
196 cx18_av_and_or4(cx, CXADEC_CHIP_CTRL, 0xFFFBFFFF, 0x00120000);
197
198 /* Setup the Video and and Aux/Audio PLLs */
199 cx18_av_init(cx);
200
201 /* set video to auto-detect */
202 /* Clear bits 11-12 to enable slow locking mode. Set autodetect mode */
203 /* set the comb notch = 1 */
204 cx18_av_and_or4(cx, CXADEC_MODE_CTRL, 0xFFF7E7F0, 0x02040800);
205
206 /* Enable wtw_en in CRUSH_CTRL (Set bit 22) */
207 /* Enable maj_sel in CRUSH_CTRL (Set bit 20) */
208 cx18_av_and_or4(cx, CXADEC_CRUSH_CTRL, ~0, 0x00500000);
209
210 /* Set VGA_TRACK_RANGE to 0x20 */
211 cx18_av_and_or4(cx, CXADEC_DFE_CTRL2, 0xFFFF00FF, 0x00002000);
212
213 /*
214 * Initial VBI setup
215 * VIP-1.1, 10 bit mode, enable Raw, disable sliced,
216 * don't clamp raw samples when codes are in use, 1 byte user D-words,
217 * IDID0 has line #, RP code V bit transition on VBLANK, data during
218 * blanking intervals
219 */
220 cx18_av_write4(cx, CXADEC_OUT_CTRL1, 0x4013252e);
221
222 /* Set the video input.
223 The setting in MODE_CTRL gets lost when we do the above setup */
224 /* EncSetSignalStd(dwDevNum, pEnc->dwSigStd); */
225 /* EncSetVideoInput(dwDevNum, pEnc->VidIndSelection); */
226
227 /*
228 * Analog Front End (AFE)
229 * Default to luma on ch1/ADC1, chroma on ch2/ADC2, SIF on ch3/ADC2
230 * bypass_ch[1-3] use filter
231 * droop_comp_ch[1-3] disable
232 * clamp_en_ch[1-3] disable
233 * aud_in_sel ADC2
234 * luma_in_sel ADC1
235 * chroma_in_sel ADC2
236 * clamp_sel_ch[2-3] midcode
237 * clamp_sel_ch1 video decoder
238 * vga_sel_ch3 audio decoder
239 * vga_sel_ch[1-2] video decoder
240 * half_bw_ch[1-3] disable
241 * +12db_ch[1-3] disable
242 */
243 cx18_av_and_or4(cx, CXADEC_AFE_CTRL, 0xFF000000, 0x00005D00);
244
245/* if(dwEnable && dw3DCombAvailable) { */
246/* CxDevWrReg(CXADEC_SRC_COMB_CFG, 0x7728021F); */
247/* } else { */
248/* CxDevWrReg(CXADEC_SRC_COMB_CFG, 0x6628021F); */
249/* } */
250 cx18_av_write4(cx, CXADEC_SRC_COMB_CFG, 0x6628021F);
251 default_volume = cx18_av_read(cx, 0x8d4);
252 /*
253 * Enforce the legacy volume scale mapping limits to avoid
254 * -ERANGE errors when initializing the volume control
255 */
256 if (default_volume > 228) {
257 /* Bottom out at -96 dB, v4l2 vol range 0x2e00-0x2fff */
258 default_volume = 228;
259 cx18_av_write(cx, 0x8d4, 228);
260 } else if (default_volume < 20) {
261 /* Top out at + 8 dB, v4l2 vol range 0xfe00-0xffff */
262 default_volume = 20;
263 cx18_av_write(cx, 0x8d4, 20);
264 }
265 default_volume = (((228 - default_volume) >> 1) + 23) << 9;
266 state->volume->cur.val = state->volume->default_value = default_volume;
267 v4l2_ctrl_handler_setup(&state->hdl);
268}
269
270static int cx18_av_reset(struct v4l2_subdev *sd, u32 val)
271{
272 cx18_av_initialize(sd);
273 return 0;
274}
275
276static int cx18_av_load_fw(struct v4l2_subdev *sd)
277{
278 struct cx18_av_state *state = to_cx18_av_state(sd);
279
280 if (!state->is_initialized) {
281 /* initialize on first use */
282 state->is_initialized = 1;
283 cx18_av_initialize(sd);
284 }
285 return 0;
286}
287
288void cx18_av_std_setup(struct cx18 *cx)
289{
290 struct cx18_av_state *state = &cx->av_state;
291 struct v4l2_subdev *sd = &state->sd;
292 v4l2_std_id std = state->std;
293
294 /*
295 * Video ADC crystal clock to pixel clock SRC decimation ratio
296 * 28.636360 MHz/13.5 Mpps * 256 = 0x21f.07b
297 */
298 const int src_decimation = 0x21f;
299
300 int hblank, hactive, burst, vblank, vactive, sc;
301 int vblank656;
302 int luma_lpf, uv_lpf, comb;
303 u32 pll_int, pll_frac, pll_post;
304
305 /* datasheet startup, step 8d */
306 if (std & ~V4L2_STD_NTSC)
307 cx18_av_write(cx, 0x49f, 0x11);
308 else
309 cx18_av_write(cx, 0x49f, 0x14);
310
311 /*
312 * Note: At the end of a field, there are 3 sets of half line duration
313 * (double horizontal rate) pulses:
314 *
315 * 5 (625) or 6 (525) half-lines to blank for the vertical retrace
316 * 5 (625) or 6 (525) vertical sync pulses of half line duration
317 * 5 (625) or 6 (525) half-lines of equalization pulses
318 */
319 if (std & V4L2_STD_625_50) {
320 /*
321 * The following relationships of half line counts should hold:
322 * 625 = vblank656 + vactive
323 * 10 = vblank656 - vblank = vsync pulses + equalization pulses
324 *
325 * vblank656: half lines after line 625/mid-313 of blanked video
326 * vblank: half lines, after line 5/317, of blanked video
327 * vactive: half lines of active video +
328 * 5 half lines after the end of active video
329 *
330 * As far as I can tell:
331 * vblank656 starts counting from the falling edge of the first
332 * vsync pulse (start of line 1 or mid-313)
333 * vblank starts counting from the after the 5 vsync pulses and
334 * 5 or 4 equalization pulses (start of line 6 or 318)
335 *
336 * For 625 line systems the driver will extract VBI information
337 * from lines 6-23 and lines 318-335 (but the slicer can only
338 * handle 17 lines, not the 18 in the vblank region).
339 * In addition, we need vblank656 and vblank to be one whole
340 * line longer, to cover line 24 and 336, so the SAV/EAV RP
341 * codes get generated such that the encoder can actually
342 * extract line 23 & 335 (WSS). We'll lose 1 line in each field
343 * at the top of the screen.
344 *
345 * It appears the 5 half lines that happen after active
346 * video must be included in vactive (579 instead of 574),
347 * otherwise the colors get badly displayed in various regions
348 * of the screen. I guess the chroma comb filter gets confused
349 * without them (at least when a PVR-350 is the PAL source).
350 */
351 vblank656 = 48; /* lines 1 - 24 & 313 - 336 */
352 vblank = 38; /* lines 6 - 24 & 318 - 336 */
353 vactive = 579; /* lines 24 - 313 & 337 - 626 */
354
355 /*
356 * For a 13.5 Mpps clock and 15,625 Hz line rate, a line is
357 * is 864 pixels = 720 active + 144 blanking. ITU-R BT.601
358 * specifies 12 luma clock periods or ~ 0.9 * 13.5 Mpps after
359 * the end of active video to start a horizontal line, so that
360 * leaves 132 pixels of hblank to ignore.
361 */
362 hblank = 132;
363 hactive = 720;
364
365 /*
366 * Burst gate delay (for 625 line systems)
367 * Hsync leading edge to color burst rise = 5.6 us
368 * Color burst width = 2.25 us
369 * Gate width = 4 pixel clocks
370 * (5.6 us + 2.25/2 us) * 13.5 Mpps + 4/2 clocks = 92.79 clocks
371 */
372 burst = 93;
373 luma_lpf = 2;
374 if (std & V4L2_STD_PAL) {
375 uv_lpf = 1;
376 comb = 0x20;
377 /* sc = 4433618.75 * src_decimation/28636360 * 2^13 */
378 sc = 688700;
379 } else if (std == V4L2_STD_PAL_Nc) {
380 uv_lpf = 1;
381 comb = 0x20;
382 /* sc = 3582056.25 * src_decimation/28636360 * 2^13 */
383 sc = 556422;
384 } else { /* SECAM */
385 uv_lpf = 0;
386 comb = 0;
387 /* (fr + fb)/2 = (4406260 + 4250000)/2 = 4328130 */
388 /* sc = 4328130 * src_decimation/28636360 * 2^13 */
389 sc = 672314;
390 }
391 } else {
392 /*
393 * The following relationships of half line counts should hold:
394 * 525 = prevsync + vblank656 + vactive
395 * 12 = vblank656 - vblank = vsync pulses + equalization pulses
396 *
397 * prevsync: 6 half-lines before the vsync pulses
398 * vblank656: half lines, after line 3/mid-266, of blanked video
399 * vblank: half lines, after line 9/272, of blanked video
400 * vactive: half lines of active video
401 *
402 * As far as I can tell:
403 * vblank656 starts counting from the falling edge of the first
404 * vsync pulse (start of line 4 or mid-266)
405 * vblank starts counting from the after the 6 vsync pulses and
406 * 6 or 5 equalization pulses (start of line 10 or 272)
407 *
408 * For 525 line systems the driver will extract VBI information
409 * from lines 10-21 and lines 273-284.
410 */
411 vblank656 = 38; /* lines 4 - 22 & 266 - 284 */
412 vblank = 26; /* lines 10 - 22 & 272 - 284 */
413 vactive = 481; /* lines 23 - 263 & 285 - 525 */
414
415 /*
416 * For a 13.5 Mpps clock and 15,734.26 Hz line rate, a line is
417 * is 858 pixels = 720 active + 138 blanking. The Hsync leading
418 * edge should happen 1.2 us * 13.5 Mpps ~= 16 pixels after the
419 * end of active video, leaving 122 pixels of hblank to ignore
420 * before active video starts.
421 */
422 hactive = 720;
423 hblank = 122;
424 luma_lpf = 1;
425 uv_lpf = 1;
426
427 /*
428 * Burst gate delay (for 525 line systems)
429 * Hsync leading edge to color burst rise = 5.3 us
430 * Color burst width = 2.5 us
431 * Gate width = 4 pixel clocks
432 * (5.3 us + 2.5/2 us) * 13.5 Mpps + 4/2 clocks = 90.425 clocks
433 */
434 if (std == V4L2_STD_PAL_60) {
435 burst = 90;
436 luma_lpf = 2;
437 comb = 0x20;
438 /* sc = 4433618.75 * src_decimation/28636360 * 2^13 */
439 sc = 688700;
440 } else if (std == V4L2_STD_PAL_M) {
441 /* The 97 needs to be verified against PAL-M timings */
442 burst = 97;
443 comb = 0x20;
444 /* sc = 3575611.49 * src_decimation/28636360 * 2^13 */
445 sc = 555421;
446 } else {
447 burst = 90;
448 comb = 0x66;
449 /* sc = 3579545.45.. * src_decimation/28636360 * 2^13 */
450 sc = 556032;
451 }
452 }
453
454 /* DEBUG: Displays configured PLL frequency */
455 pll_int = cx18_av_read(cx, 0x108);
456 pll_frac = cx18_av_read4(cx, 0x10c) & 0x1ffffff;
457 pll_post = cx18_av_read(cx, 0x109);
458 CX18_DEBUG_INFO_DEV(sd, "PLL regs = int: %u, frac: %u, post: %u\n",
459 pll_int, pll_frac, pll_post);
460
461 if (pll_post) {
462 int fsc, pll;
463 u64 tmp;
464
465 pll = (28636360L * ((((u64)pll_int) << 25) + pll_frac)) >> 25;
466 pll /= pll_post;
467 CX18_DEBUG_INFO_DEV(sd, "Video PLL = %d.%06d MHz\n",
468 pll / 1000000, pll % 1000000);
469 CX18_DEBUG_INFO_DEV(sd, "Pixel rate = %d.%06d Mpixel/sec\n",
470 pll / 8000000, (pll / 8) % 1000000);
471
472 CX18_DEBUG_INFO_DEV(sd, "ADC XTAL/pixel clock decimation ratio "
473 "= %d.%03d\n", src_decimation / 256,
474 ((src_decimation % 256) * 1000) / 256);
475
476 tmp = 28636360 * (u64) sc;
477 do_div(tmp, src_decimation);
478 fsc = tmp >> 13;
479 CX18_DEBUG_INFO_DEV(sd,
480 "Chroma sub-carrier initial freq = %d.%06d "
481 "MHz\n", fsc / 1000000, fsc % 1000000);
482
483 CX18_DEBUG_INFO_DEV(sd, "hblank %i, hactive %i, vblank %i, "
484 "vactive %i, vblank656 %i, src_dec %i, "
485 "burst 0x%02x, luma_lpf %i, uv_lpf %i, "
486 "comb 0x%02x, sc 0x%06x\n",
487 hblank, hactive, vblank, vactive, vblank656,
488 src_decimation, burst, luma_lpf, uv_lpf,
489 comb, sc);
490 }
491
492 /* Sets horizontal blanking delay and active lines */
493 cx18_av_write(cx, 0x470, hblank);
494 cx18_av_write(cx, 0x471, 0xff & (((hblank >> 8) & 0x3) |
495 (hactive << 4)));
496 cx18_av_write(cx, 0x472, hactive >> 4);
497
498 /* Sets burst gate delay */
499 cx18_av_write(cx, 0x473, burst);
500
501 /* Sets vertical blanking delay and active duration */
502 cx18_av_write(cx, 0x474, vblank);
503 cx18_av_write(cx, 0x475, 0xff & (((vblank >> 8) & 0x3) |
504 (vactive << 4)));
505 cx18_av_write(cx, 0x476, vactive >> 4);
506 cx18_av_write(cx, 0x477, vblank656);
507
508 /* Sets src decimation rate */
509 cx18_av_write(cx, 0x478, 0xff & src_decimation);
510 cx18_av_write(cx, 0x479, 0xff & (src_decimation >> 8));
511
512 /* Sets Luma and UV Low pass filters */
513 cx18_av_write(cx, 0x47a, luma_lpf << 6 | ((uv_lpf << 4) & 0x30));
514
515 /* Enables comb filters */
516 cx18_av_write(cx, 0x47b, comb);
517
518 /* Sets SC Step*/
519 cx18_av_write(cx, 0x47c, sc);
520 cx18_av_write(cx, 0x47d, 0xff & sc >> 8);
521 cx18_av_write(cx, 0x47e, 0xff & sc >> 16);
522
523 if (std & V4L2_STD_625_50) {
524 state->slicer_line_delay = 1;
525 state->slicer_line_offset = (6 + state->slicer_line_delay - 2);
526 } else {
527 state->slicer_line_delay = 0;
528 state->slicer_line_offset = (10 + state->slicer_line_delay - 2);
529 }
530 cx18_av_write(cx, 0x47f, state->slicer_line_delay);
531}
532
533static void input_change(struct cx18 *cx)
534{
535 struct cx18_av_state *state = &cx->av_state;
536 v4l2_std_id std = state->std;
537 u8 v;
538
539 /* Follow step 8c and 8d of section 3.16 in the cx18_av datasheet */
540 cx18_av_write(cx, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11);
541 cx18_av_and_or(cx, 0x401, ~0x60, 0);
542 cx18_av_and_or(cx, 0x401, ~0x60, 0x60);
543
544 if (std & V4L2_STD_525_60) {
545 if (std == V4L2_STD_NTSC_M_JP) {
546 /* Japan uses EIAJ audio standard */
547 cx18_av_write_expect(cx, 0x808, 0xf7, 0xf7, 0xff);
548 cx18_av_write_expect(cx, 0x80b, 0x02, 0x02, 0x3f);
549 } else if (std == V4L2_STD_NTSC_M_KR) {
550 /* South Korea uses A2 audio standard */
551 cx18_av_write_expect(cx, 0x808, 0xf8, 0xf8, 0xff);
552 cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
553 } else {
554 /* Others use the BTSC audio standard */
555 cx18_av_write_expect(cx, 0x808, 0xf6, 0xf6, 0xff);
556 cx18_av_write_expect(cx, 0x80b, 0x01, 0x01, 0x3f);
557 }
558 } else if (std & V4L2_STD_PAL) {
559 /* Follow tuner change procedure for PAL */
560 cx18_av_write_expect(cx, 0x808, 0xff, 0xff, 0xff);
561 cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
562 } else if (std & V4L2_STD_SECAM) {
563 /* Select autodetect for SECAM */
564 cx18_av_write_expect(cx, 0x808, 0xff, 0xff, 0xff);
565 cx18_av_write_expect(cx, 0x80b, 0x03, 0x03, 0x3f);
566 }
567
568 v = cx18_av_read(cx, 0x803);
569 if (v & 0x10) {
570 /* restart audio decoder microcontroller */
571 v &= ~0x10;
572 cx18_av_write_expect(cx, 0x803, v, v, 0x1f);
573 v |= 0x10;
574 cx18_av_write_expect(cx, 0x803, v, v, 0x1f);
575 }
576}
577
578static int cx18_av_s_frequency(struct v4l2_subdev *sd,
579 struct v4l2_frequency *freq)
580{
581 struct cx18 *cx = v4l2_get_subdevdata(sd);
582 input_change(cx);
583 return 0;
584}
585
586static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
587 enum cx18_av_audio_input aud_input)
588{
589 struct cx18_av_state *state = &cx->av_state;
590 struct v4l2_subdev *sd = &state->sd;
591
592 enum analog_signal_type {
593 NONE, CVBS, Y, C, SIF, Pb, Pr
594 } ch[3] = {NONE, NONE, NONE};
595
596 u8 afe_mux_cfg;
597 u8 adc2_cfg;
598 u8 input_mode;
599 u32 afe_cfg;
600 int i;
601
602 CX18_DEBUG_INFO_DEV(sd, "decoder set video input %d, audio input %d\n",
603 vid_input, aud_input);
604
605 if (vid_input >= CX18_AV_COMPOSITE1 &&
606 vid_input <= CX18_AV_COMPOSITE8) {
607 afe_mux_cfg = 0xf0 + (vid_input - CX18_AV_COMPOSITE1);
608 ch[0] = CVBS;
609 input_mode = 0x0;
610 } else if (vid_input >= CX18_AV_COMPONENT_LUMA1) {
611 int luma = vid_input & 0xf000;
612 int r_chroma = vid_input & 0xf0000;
613 int b_chroma = vid_input & 0xf00000;
614
615 if ((vid_input & ~0xfff000) ||
616 luma < CX18_AV_COMPONENT_LUMA1 ||
617 luma > CX18_AV_COMPONENT_LUMA8 ||
618 r_chroma < CX18_AV_COMPONENT_R_CHROMA4 ||
619 r_chroma > CX18_AV_COMPONENT_R_CHROMA6 ||
620 b_chroma < CX18_AV_COMPONENT_B_CHROMA7 ||
621 b_chroma > CX18_AV_COMPONENT_B_CHROMA8) {
622 CX18_ERR_DEV(sd, "0x%06x is not a valid video input!\n",
623 vid_input);
624 return -EINVAL;
625 }
626 afe_mux_cfg = (luma - CX18_AV_COMPONENT_LUMA1) >> 12;
627 ch[0] = Y;
628 afe_mux_cfg |= (r_chroma - CX18_AV_COMPONENT_R_CHROMA4) >> 12;
629 ch[1] = Pr;
630 afe_mux_cfg |= (b_chroma - CX18_AV_COMPONENT_B_CHROMA7) >> 14;
631 ch[2] = Pb;
632 input_mode = 0x6;
633 } else {
634 int luma = vid_input & 0xf0;
635 int chroma = vid_input & 0xf00;
636
637 if ((vid_input & ~0xff0) ||
638 luma < CX18_AV_SVIDEO_LUMA1 ||
639 luma > CX18_AV_SVIDEO_LUMA8 ||
640 chroma < CX18_AV_SVIDEO_CHROMA4 ||
641 chroma > CX18_AV_SVIDEO_CHROMA8) {
642 CX18_ERR_DEV(sd, "0x%06x is not a valid video input!\n",
643 vid_input);
644 return -EINVAL;
645 }
646 afe_mux_cfg = 0xf0 + ((luma - CX18_AV_SVIDEO_LUMA1) >> 4);
647 ch[0] = Y;
648 if (chroma >= CX18_AV_SVIDEO_CHROMA7) {
649 afe_mux_cfg &= 0x3f;
650 afe_mux_cfg |= (chroma - CX18_AV_SVIDEO_CHROMA7) >> 2;
651 ch[2] = C;
652 } else {
653 afe_mux_cfg &= 0xcf;
654 afe_mux_cfg |= (chroma - CX18_AV_SVIDEO_CHROMA4) >> 4;
655 ch[1] = C;
656 }
657 input_mode = 0x2;
658 }
659
660 switch (aud_input) {
661 case CX18_AV_AUDIO_SERIAL1:
662 case CX18_AV_AUDIO_SERIAL2:
663 /* do nothing, use serial audio input */
664 break;
665 case CX18_AV_AUDIO4:
666 afe_mux_cfg &= ~0x30;
667 ch[1] = SIF;
668 break;
669 case CX18_AV_AUDIO5:
670 afe_mux_cfg = (afe_mux_cfg & ~0x30) | 0x10;
671 ch[1] = SIF;
672 break;
673 case CX18_AV_AUDIO6:
674 afe_mux_cfg = (afe_mux_cfg & ~0x30) | 0x20;
675 ch[1] = SIF;
676 break;
677 case CX18_AV_AUDIO7:
678 afe_mux_cfg &= ~0xc0;
679 ch[2] = SIF;
680 break;
681 case CX18_AV_AUDIO8:
682 afe_mux_cfg = (afe_mux_cfg & ~0xc0) | 0x40;
683 ch[2] = SIF;
684 break;
685
686 default:
687 CX18_ERR_DEV(sd, "0x%04x is not a valid audio input!\n",
688 aud_input);
689 return -EINVAL;
690 }
691
692 /* Set up analog front end multiplexers */
693 cx18_av_write_expect(cx, 0x103, afe_mux_cfg, afe_mux_cfg, 0xf7);
694 /* Set INPUT_MODE to Composite, S-Video, or Component */
695 cx18_av_and_or(cx, 0x401, ~0x6, input_mode);
696
697 /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
698 adc2_cfg = cx18_av_read(cx, 0x102);
699 if (ch[2] == NONE)
700 adc2_cfg &= ~0x2; /* No sig on CH3, set ADC2 to CH2 for input */
701 else
702 adc2_cfg |= 0x2; /* Signal on CH3, set ADC2 to CH3 for input */
703
704 /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */
705 if (ch[1] != NONE && ch[2] != NONE)
706 adc2_cfg |= 0x4; /* Set dual mode */
707 else
708 adc2_cfg &= ~0x4; /* Clear dual mode */
709 cx18_av_write_expect(cx, 0x102, adc2_cfg, adc2_cfg, 0x17);
710
711 /* Configure the analog front end */
712 afe_cfg = cx18_av_read4(cx, CXADEC_AFE_CTRL);
713 afe_cfg &= 0xff000000;
714 afe_cfg |= 0x00005000; /* CHROMA_IN, AUD_IN: ADC2; LUMA_IN: ADC1 */
715 if (ch[1] != NONE && ch[2] != NONE)
716 afe_cfg |= 0x00000030; /* half_bw_ch[2-3] since in dual mode */
717
718 for (i = 0; i < 3; i++) {
719 switch (ch[i]) {
720 default:
721 case NONE:
722 /* CLAMP_SEL = Fixed to midcode clamp level */
723 afe_cfg |= (0x00000200 << i);
724 break;
725 case CVBS:
726 case Y:
727 if (i > 0)
728 afe_cfg |= 0x00002000; /* LUMA_IN_SEL: ADC2 */
729 break;
730 case C:
731 case Pb:
732 case Pr:
733 /* CLAMP_SEL = Fixed to midcode clamp level */
734 afe_cfg |= (0x00000200 << i);
735 if (i == 0 && ch[i] == C)
736 afe_cfg &= ~0x00001000; /* CHROMA_IN_SEL ADC1 */
737 break;
738 case SIF:
739 /*
740 * VGA_GAIN_SEL = Audio Decoder
741 * CLAMP_SEL = Fixed to midcode clamp level
742 */
743 afe_cfg |= (0x00000240 << i);
744 if (i == 0)
745 afe_cfg &= ~0x00004000; /* AUD_IN_SEL ADC1 */
746 break;
747 }
748 }
749
750 cx18_av_write4(cx, CXADEC_AFE_CTRL, afe_cfg);
751
752 state->vid_input = vid_input;
753 state->aud_input = aud_input;
754 cx18_av_audio_set_path(cx);
755 input_change(cx);
756 return 0;
757}
758
759static int cx18_av_s_video_routing(struct v4l2_subdev *sd,
760 u32 input, u32 output, u32 config)
761{
762 struct cx18_av_state *state = to_cx18_av_state(sd);
763 struct cx18 *cx = v4l2_get_subdevdata(sd);
764 return set_input(cx, input, state->aud_input);
765}
766
767static int cx18_av_s_audio_routing(struct v4l2_subdev *sd,
768 u32 input, u32 output, u32 config)
769{
770 struct cx18_av_state *state = to_cx18_av_state(sd);
771 struct cx18 *cx = v4l2_get_subdevdata(sd);
772 return set_input(cx, state->vid_input, input);
773}
774
775static int cx18_av_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
776{
777 struct cx18_av_state *state = to_cx18_av_state(sd);
778 struct cx18 *cx = v4l2_get_subdevdata(sd);
779 u8 vpres;
780 u8 mode;
781 int val = 0;
782
783 if (state->radio)
784 return 0;
785
786 vpres = cx18_av_read(cx, 0x40e) & 0x20;
787 vt->signal = vpres ? 0xffff : 0x0;
788
789 vt->capability |=
790 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
791 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
792
793 mode = cx18_av_read(cx, 0x804);
794
795 /* get rxsubchans and audmode */
796 if ((mode & 0xf) == 1)
797 val |= V4L2_TUNER_SUB_STEREO;
798 else
799 val |= V4L2_TUNER_SUB_MONO;
800
801 if (mode == 2 || mode == 4)
802 val = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
803
804 if (mode & 0x10)
805 val |= V4L2_TUNER_SUB_SAP;
806
807 vt->rxsubchans = val;
808 vt->audmode = state->audmode;
809 return 0;
810}
811
812static int cx18_av_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
813{
814 struct cx18_av_state *state = to_cx18_av_state(sd);
815 struct cx18 *cx = v4l2_get_subdevdata(sd);
816 u8 v;
817
818 if (state->radio)
819 return 0;
820
821 v = cx18_av_read(cx, 0x809);
822 v &= ~0xf;
823
824 switch (vt->audmode) {
825 case V4L2_TUNER_MODE_MONO:
826 /* mono -> mono
827 stereo -> mono
828 bilingual -> lang1 */
829 break;
830 case V4L2_TUNER_MODE_STEREO:
831 case V4L2_TUNER_MODE_LANG1:
832 /* mono -> mono
833 stereo -> stereo
834 bilingual -> lang1 */
835 v |= 0x4;
836 break;
837 case V4L2_TUNER_MODE_LANG1_LANG2:
838 /* mono -> mono
839 stereo -> stereo
840 bilingual -> lang1/lang2 */
841 v |= 0x7;
842 break;
843 case V4L2_TUNER_MODE_LANG2:
844 /* mono -> mono
845 stereo -> stereo
846 bilingual -> lang2 */
847 v |= 0x1;
848 break;
849 default:
850 return -EINVAL;
851 }
852 cx18_av_write_expect(cx, 0x809, v, v, 0xff);
853 state->audmode = vt->audmode;
854 return 0;
855}
856
857static int cx18_av_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
858{
859 struct cx18_av_state *state = to_cx18_av_state(sd);
860 struct cx18 *cx = v4l2_get_subdevdata(sd);
861
862 u8 fmt = 0; /* zero is autodetect */
863 u8 pal_m = 0;
864
865 if (state->radio == 0 && state->std == norm)
866 return 0;
867
868 state->radio = 0;
869 state->std = norm;
870
871 /* First tests should be against specific std */
872 if (state->std == V4L2_STD_NTSC_M_JP) {
873 fmt = 0x2;
874 } else if (state->std == V4L2_STD_NTSC_443) {
875 fmt = 0x3;
876 } else if (state->std == V4L2_STD_PAL_M) {
877 pal_m = 1;
878 fmt = 0x5;
879 } else if (state->std == V4L2_STD_PAL_N) {
880 fmt = 0x6;
881 } else if (state->std == V4L2_STD_PAL_Nc) {
882 fmt = 0x7;
883 } else if (state->std == V4L2_STD_PAL_60) {
884 fmt = 0x8;
885 } else {
886 /* Then, test against generic ones */
887 if (state->std & V4L2_STD_NTSC)
888 fmt = 0x1;
889 else if (state->std & V4L2_STD_PAL)
890 fmt = 0x4;
891 else if (state->std & V4L2_STD_SECAM)
892 fmt = 0xc;
893 }
894
895 CX18_DEBUG_INFO_DEV(sd, "changing video std to fmt %i\n", fmt);
896
897 /* Follow step 9 of section 3.16 in the cx18_av datasheet.
898 Without this PAL may display a vertical ghosting effect.
899 This happens for example with the Yuan MPC622. */
900 if (fmt >= 4 && fmt < 8) {
901 /* Set format to NTSC-M */
902 cx18_av_and_or(cx, 0x400, ~0xf, 1);
903 /* Turn off LCOMB */
904 cx18_av_and_or(cx, 0x47b, ~6, 0);
905 }
906 cx18_av_and_or(cx, 0x400, ~0x2f, fmt | 0x20);
907 cx18_av_and_or(cx, 0x403, ~0x3, pal_m);
908 cx18_av_std_setup(cx);
909 input_change(cx);
910 return 0;
911}
912
913static int cx18_av_s_radio(struct v4l2_subdev *sd)
914{
915 struct cx18_av_state *state = to_cx18_av_state(sd);
916 state->radio = 1;
917 return 0;
918}
919
920static int cx18_av_s_ctrl(struct v4l2_ctrl *ctrl)
921{
922 struct v4l2_subdev *sd = to_sd(ctrl);
923 struct cx18 *cx = v4l2_get_subdevdata(sd);
924
925 switch (ctrl->id) {
926 case V4L2_CID_BRIGHTNESS:
927 cx18_av_write(cx, 0x414, ctrl->val - 128);
928 break;
929
930 case V4L2_CID_CONTRAST:
931 cx18_av_write(cx, 0x415, ctrl->val << 1);
932 break;
933
934 case V4L2_CID_SATURATION:
935 cx18_av_write(cx, 0x420, ctrl->val << 1);
936 cx18_av_write(cx, 0x421, ctrl->val << 1);
937 break;
938
939 case V4L2_CID_HUE:
940 cx18_av_write(cx, 0x422, ctrl->val);
941 break;
942
943 default:
944 return -EINVAL;
945 }
946 return 0;
947}
948
949static int cx18_av_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *fmt)
950{
951 struct cx18_av_state *state = to_cx18_av_state(sd);
952 struct cx18 *cx = v4l2_get_subdevdata(sd);
953 int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
954 int is_50Hz = !(state->std & V4L2_STD_525_60);
955
956 if (fmt->code != V4L2_MBUS_FMT_FIXED)
957 return -EINVAL;
958
959 fmt->field = V4L2_FIELD_INTERLACED;
960 fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
961
962 Vsrc = (cx18_av_read(cx, 0x476) & 0x3f) << 4;
963 Vsrc |= (cx18_av_read(cx, 0x475) & 0xf0) >> 4;
964
965 Hsrc = (cx18_av_read(cx, 0x472) & 0x3f) << 4;
966 Hsrc |= (cx18_av_read(cx, 0x471) & 0xf0) >> 4;
967
968 /*
969 * This adjustment reflects the excess of vactive, set in
970 * cx18_av_std_setup(), above standard values:
971 *
972 * 480 + 1 for 60 Hz systems
973 * 576 + 3 for 50 Hz systems
974 */
975 Vlines = fmt->height + (is_50Hz ? 3 : 1);
976
977 /*
978 * Invalid height and width scaling requests are:
979 * 1. width less than 1/16 of the source width
980 * 2. width greater than the source width
981 * 3. height less than 1/8 of the source height
982 * 4. height greater than the source height
983 */
984 if ((fmt->width * 16 < Hsrc) || (Hsrc < fmt->width) ||
985 (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
986 CX18_ERR_DEV(sd, "%dx%d is not a valid size!\n",
987 fmt->width, fmt->height);
988 return -ERANGE;
989 }
990
991 HSC = (Hsrc * (1 << 20)) / fmt->width - (1 << 20);
992 VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
993 VSC &= 0x1fff;
994
995 if (fmt->width >= 385)
996 filter = 0;
997 else if (fmt->width > 192)
998 filter = 1;
999 else if (fmt->width > 96)
1000 filter = 2;
1001 else
1002 filter = 3;
1003
1004 CX18_DEBUG_INFO_DEV(sd,
1005 "decoder set size %dx%d -> scale %ux%u\n",
1006 fmt->width, fmt->height, HSC, VSC);
1007
1008 /* HSCALE=HSC */
1009 cx18_av_write(cx, 0x418, HSC & 0xff);
1010 cx18_av_write(cx, 0x419, (HSC >> 8) & 0xff);
1011 cx18_av_write(cx, 0x41a, HSC >> 16);
1012 /* VSCALE=VSC */
1013 cx18_av_write(cx, 0x41c, VSC & 0xff);
1014 cx18_av_write(cx, 0x41d, VSC >> 8);
1015 /* VS_INTRLACE=1 VFILT=filter */
1016 cx18_av_write(cx, 0x41e, 0x8 | filter);
1017 return 0;
1018}
1019
1020static int cx18_av_s_stream(struct v4l2_subdev *sd, int enable)
1021{
1022 struct cx18 *cx = v4l2_get_subdevdata(sd);
1023
1024 CX18_DEBUG_INFO_DEV(sd, "%s output\n", enable ? "enable" : "disable");
1025 if (enable) {
1026 cx18_av_write(cx, 0x115, 0x8c);
1027 cx18_av_write(cx, 0x116, 0x07);
1028 } else {
1029 cx18_av_write(cx, 0x115, 0x00);
1030 cx18_av_write(cx, 0x116, 0x00);
1031 }
1032 return 0;
1033}
1034
1035static void log_video_status(struct cx18 *cx)
1036{
1037 static const char *const fmt_strs[] = {
1038 "0x0",
1039 "NTSC-M", "NTSC-J", "NTSC-4.43",
1040 "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60",
1041 "0x9", "0xA", "0xB",
1042 "SECAM",
1043 "0xD", "0xE", "0xF"
1044 };
1045
1046 struct cx18_av_state *state = &cx->av_state;
1047 struct v4l2_subdev *sd = &state->sd;
1048 u8 vidfmt_sel = cx18_av_read(cx, 0x400) & 0xf;
1049 u8 gen_stat1 = cx18_av_read(cx, 0x40d);
1050 u8 gen_stat2 = cx18_av_read(cx, 0x40e);
1051 int vid_input = state->vid_input;
1052
1053 CX18_INFO_DEV(sd, "Video signal: %spresent\n",
1054 (gen_stat2 & 0x20) ? "" : "not ");
1055 CX18_INFO_DEV(sd, "Detected format: %s\n",
1056 fmt_strs[gen_stat1 & 0xf]);
1057
1058 CX18_INFO_DEV(sd, "Specified standard: %s\n",
1059 vidfmt_sel ? fmt_strs[vidfmt_sel]
1060 : "automatic detection");
1061
1062 if (vid_input >= CX18_AV_COMPOSITE1 &&
1063 vid_input <= CX18_AV_COMPOSITE8) {
1064 CX18_INFO_DEV(sd, "Specified video input: Composite %d\n",
1065 vid_input - CX18_AV_COMPOSITE1 + 1);
1066 } else {
1067 CX18_INFO_DEV(sd, "Specified video input: "
1068 "S-Video (Luma In%d, Chroma In%d)\n",
1069 (vid_input & 0xf0) >> 4,
1070 (vid_input & 0xf00) >> 8);
1071 }
1072
1073 CX18_INFO_DEV(sd, "Specified audioclock freq: %d Hz\n",
1074 state->audclk_freq);
1075}
1076
1077static void log_audio_status(struct cx18 *cx)
1078{
1079 struct cx18_av_state *state = &cx->av_state;
1080 struct v4l2_subdev *sd = &state->sd;
1081 u8 download_ctl = cx18_av_read(cx, 0x803);
1082 u8 mod_det_stat0 = cx18_av_read(cx, 0x804);
1083 u8 mod_det_stat1 = cx18_av_read(cx, 0x805);
1084 u8 audio_config = cx18_av_read(cx, 0x808);
1085 u8 pref_mode = cx18_av_read(cx, 0x809);
1086 u8 afc0 = cx18_av_read(cx, 0x80b);
1087 u8 mute_ctl = cx18_av_read(cx, 0x8d3);
1088 int aud_input = state->aud_input;
1089 char *p;
1090
1091 switch (mod_det_stat0) {
1092 case 0x00: p = "mono"; break;
1093 case 0x01: p = "stereo"; break;
1094 case 0x02: p = "dual"; break;
1095 case 0x04: p = "tri"; break;
1096 case 0x10: p = "mono with SAP"; break;
1097 case 0x11: p = "stereo with SAP"; break;
1098 case 0x12: p = "dual with SAP"; break;
1099 case 0x14: p = "tri with SAP"; break;
1100 case 0xfe: p = "forced mode"; break;
1101 default: p = "not defined"; break;
1102 }
1103 CX18_INFO_DEV(sd, "Detected audio mode: %s\n", p);
1104
1105 switch (mod_det_stat1) {
1106 case 0x00: p = "not defined"; break;
1107 case 0x01: p = "EIAJ"; break;
1108 case 0x02: p = "A2-M"; break;
1109 case 0x03: p = "A2-BG"; break;
1110 case 0x04: p = "A2-DK1"; break;
1111 case 0x05: p = "A2-DK2"; break;
1112 case 0x06: p = "A2-DK3"; break;
1113 case 0x07: p = "A1 (6.0 MHz FM Mono)"; break;
1114 case 0x08: p = "AM-L"; break;
1115 case 0x09: p = "NICAM-BG"; break;
1116 case 0x0a: p = "NICAM-DK"; break;
1117 case 0x0b: p = "NICAM-I"; break;
1118 case 0x0c: p = "NICAM-L"; break;
1119 case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break;
1120 case 0x0e: p = "IF FM Radio"; break;
1121 case 0x0f: p = "BTSC"; break;
1122 case 0x10: p = "detected chrominance"; break;
1123 case 0xfd: p = "unknown audio standard"; break;
1124 case 0xfe: p = "forced audio standard"; break;
1125 case 0xff: p = "no detected audio standard"; break;
1126 default: p = "not defined"; break;
1127 }
1128 CX18_INFO_DEV(sd, "Detected audio standard: %s\n", p);
1129 CX18_INFO_DEV(sd, "Audio muted: %s\n",
1130 (mute_ctl & 0x2) ? "yes" : "no");
1131 CX18_INFO_DEV(sd, "Audio microcontroller: %s\n",
1132 (download_ctl & 0x10) ? "running" : "stopped");
1133
1134 switch (audio_config >> 4) {
1135 case 0x00: p = "undefined"; break;
1136 case 0x01: p = "BTSC"; break;
1137 case 0x02: p = "EIAJ"; break;
1138 case 0x03: p = "A2-M"; break;
1139 case 0x04: p = "A2-BG"; break;
1140 case 0x05: p = "A2-DK1"; break;
1141 case 0x06: p = "A2-DK2"; break;
1142 case 0x07: p = "A2-DK3"; break;
1143 case 0x08: p = "A1 (6.0 MHz FM Mono)"; break;
1144 case 0x09: p = "AM-L"; break;
1145 case 0x0a: p = "NICAM-BG"; break;
1146 case 0x0b: p = "NICAM-DK"; break;
1147 case 0x0c: p = "NICAM-I"; break;
1148 case 0x0d: p = "NICAM-L"; break;
1149 case 0x0e: p = "FM radio"; break;
1150 case 0x0f: p = "automatic detection"; break;
1151 default: p = "undefined"; break;
1152 }
1153 CX18_INFO_DEV(sd, "Configured audio standard: %s\n", p);
1154
1155 if ((audio_config >> 4) < 0xF) {
1156 switch (audio_config & 0xF) {
1157 case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break;
1158 case 0x01: p = "MONO2 (LANGUAGE B)"; break;
1159 case 0x02: p = "MONO3 (STEREO forced MONO)"; break;
1160 case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break;
1161 case 0x04: p = "STEREO"; break;
1162 case 0x05: p = "DUAL1 (AC)"; break;
1163 case 0x06: p = "DUAL2 (BC)"; break;
1164 case 0x07: p = "DUAL3 (AB)"; break;
1165 default: p = "undefined";
1166 }
1167 CX18_INFO_DEV(sd, "Configured audio mode: %s\n", p);
1168 } else {
1169 switch (audio_config & 0xF) {
1170 case 0x00: p = "BG"; break;
1171 case 0x01: p = "DK1"; break;
1172 case 0x02: p = "DK2"; break;
1173 case 0x03: p = "DK3"; break;
1174 case 0x04: p = "I"; break;
1175 case 0x05: p = "L"; break;
1176 case 0x06: p = "BTSC"; break;
1177 case 0x07: p = "EIAJ"; break;
1178 case 0x08: p = "A2-M"; break;
1179 case 0x09: p = "FM Radio (4.5 MHz)"; break;
1180 case 0x0a: p = "FM Radio (5.5 MHz)"; break;
1181 case 0x0b: p = "S-Video"; break;
1182 case 0x0f: p = "automatic standard and mode detection"; break;
1183 default: p = "undefined"; break;
1184 }
1185 CX18_INFO_DEV(sd, "Configured audio system: %s\n", p);
1186 }
1187
1188 if (aud_input)
1189 CX18_INFO_DEV(sd, "Specified audio input: Tuner (In%d)\n",
1190 aud_input);
1191 else
1192 CX18_INFO_DEV(sd, "Specified audio input: External\n");
1193
1194 switch (pref_mode & 0xf) {
1195 case 0: p = "mono/language A"; break;
1196 case 1: p = "language B"; break;
1197 case 2: p = "language C"; break;
1198 case 3: p = "analog fallback"; break;
1199 case 4: p = "stereo"; break;
1200 case 5: p = "language AC"; break;
1201 case 6: p = "language BC"; break;
1202 case 7: p = "language AB"; break;
1203 default: p = "undefined"; break;
1204 }
1205 CX18_INFO_DEV(sd, "Preferred audio mode: %s\n", p);
1206
1207 if ((audio_config & 0xf) == 0xf) {
1208 switch ((afc0 >> 3) & 0x1) {
1209 case 0: p = "system DK"; break;
1210 case 1: p = "system L"; break;
1211 }
1212 CX18_INFO_DEV(sd, "Selected 65 MHz format: %s\n", p);
1213
1214 switch (afc0 & 0x7) {
1215 case 0: p = "Chroma"; break;
1216 case 1: p = "BTSC"; break;
1217 case 2: p = "EIAJ"; break;
1218 case 3: p = "A2-M"; break;
1219 case 4: p = "autodetect"; break;
1220 default: p = "undefined"; break;
1221 }
1222 CX18_INFO_DEV(sd, "Selected 45 MHz format: %s\n", p);
1223 }
1224}
1225
1226static int cx18_av_log_status(struct v4l2_subdev *sd)
1227{
1228 struct cx18 *cx = v4l2_get_subdevdata(sd);
1229 log_video_status(cx);
1230 log_audio_status(cx);
1231 return 0;
1232}
1233
1234static inline int cx18_av_dbg_match(const struct v4l2_dbg_match *match)
1235{
1236 return match->type == V4L2_CHIP_MATCH_HOST && match->addr == 1;
1237}
1238
1239static int cx18_av_g_chip_ident(struct v4l2_subdev *sd,
1240 struct v4l2_dbg_chip_ident *chip)
1241{
1242 struct cx18_av_state *state = to_cx18_av_state(sd);
1243
1244 if (cx18_av_dbg_match(&chip->match)) {
1245 chip->ident = state->id;
1246 chip->revision = state->rev;
1247 }
1248 return 0;
1249}
1250
1251#ifdef CONFIG_VIDEO_ADV_DEBUG
1252static int cx18_av_g_register(struct v4l2_subdev *sd,
1253 struct v4l2_dbg_register *reg)
1254{
1255 struct cx18 *cx = v4l2_get_subdevdata(sd);
1256
1257 if (!cx18_av_dbg_match(&reg->match))
1258 return -EINVAL;
1259 if ((reg->reg & 0x3) != 0)
1260 return -EINVAL;
1261 if (!capable(CAP_SYS_ADMIN))
1262 return -EPERM;
1263 reg->size = 4;
1264 reg->val = cx18_av_read4(cx, reg->reg & 0x00000ffc);
1265 return 0;
1266}
1267
1268static int cx18_av_s_register(struct v4l2_subdev *sd,
1269 struct v4l2_dbg_register *reg)
1270{
1271 struct cx18 *cx = v4l2_get_subdevdata(sd);
1272
1273 if (!cx18_av_dbg_match(&reg->match))
1274 return -EINVAL;
1275 if ((reg->reg & 0x3) != 0)
1276 return -EINVAL;
1277 if (!capable(CAP_SYS_ADMIN))
1278 return -EPERM;
1279 cx18_av_write4(cx, reg->reg & 0x00000ffc, reg->val);
1280 return 0;
1281}
1282#endif
1283
1284static const struct v4l2_ctrl_ops cx18_av_ctrl_ops = {
1285 .s_ctrl = cx18_av_s_ctrl,
1286};
1287
1288static const struct v4l2_subdev_core_ops cx18_av_general_ops = {
1289 .g_chip_ident = cx18_av_g_chip_ident,
1290 .log_status = cx18_av_log_status,
1291 .load_fw = cx18_av_load_fw,
1292 .reset = cx18_av_reset,
1293 .g_ctrl = v4l2_subdev_g_ctrl,
1294 .s_ctrl = v4l2_subdev_s_ctrl,
1295 .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
1296 .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
1297 .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
1298 .queryctrl = v4l2_subdev_queryctrl,
1299 .querymenu = v4l2_subdev_querymenu,
1300 .s_std = cx18_av_s_std,
1301#ifdef CONFIG_VIDEO_ADV_DEBUG
1302 .g_register = cx18_av_g_register,
1303 .s_register = cx18_av_s_register,
1304#endif
1305};
1306
1307static const struct v4l2_subdev_tuner_ops cx18_av_tuner_ops = {
1308 .s_radio = cx18_av_s_radio,
1309 .s_frequency = cx18_av_s_frequency,
1310 .g_tuner = cx18_av_g_tuner,
1311 .s_tuner = cx18_av_s_tuner,
1312};
1313
1314static const struct v4l2_subdev_audio_ops cx18_av_audio_ops = {
1315 .s_clock_freq = cx18_av_s_clock_freq,
1316 .s_routing = cx18_av_s_audio_routing,
1317};
1318
1319static const struct v4l2_subdev_video_ops cx18_av_video_ops = {
1320 .s_routing = cx18_av_s_video_routing,
1321 .s_stream = cx18_av_s_stream,
1322 .s_mbus_fmt = cx18_av_s_mbus_fmt,
1323};
1324
1325static const struct v4l2_subdev_vbi_ops cx18_av_vbi_ops = {
1326 .decode_vbi_line = cx18_av_decode_vbi_line,
1327 .g_sliced_fmt = cx18_av_g_sliced_fmt,
1328 .s_sliced_fmt = cx18_av_s_sliced_fmt,
1329 .s_raw_fmt = cx18_av_s_raw_fmt,
1330};
1331
1332static const struct v4l2_subdev_ops cx18_av_ops = {
1333 .core = &cx18_av_general_ops,
1334 .tuner = &cx18_av_tuner_ops,
1335 .audio = &cx18_av_audio_ops,
1336 .video = &cx18_av_video_ops,
1337 .vbi = &cx18_av_vbi_ops,
1338};
1339
1340int cx18_av_probe(struct cx18 *cx)
1341{
1342 struct cx18_av_state *state = &cx->av_state;
1343 struct v4l2_subdev *sd;
1344 int err;
1345
1346 state->rev = cx18_av_read4(cx, CXADEC_CHIP_CTRL) & 0xffff;
1347 state->id = ((state->rev >> 4) == CXADEC_CHIP_TYPE_MAKO)
1348 ? V4L2_IDENT_CX23418_843 : V4L2_IDENT_UNKNOWN;
1349
1350 state->vid_input = CX18_AV_COMPOSITE7;
1351 state->aud_input = CX18_AV_AUDIO8;
1352 state->audclk_freq = 48000;
1353 state->audmode = V4L2_TUNER_MODE_LANG1;
1354 state->slicer_line_delay = 0;
1355 state->slicer_line_offset = (10 + state->slicer_line_delay - 2);
1356
1357 sd = &state->sd;
1358 v4l2_subdev_init(sd, &cx18_av_ops);
1359 v4l2_set_subdevdata(sd, cx);
1360 snprintf(sd->name, sizeof(sd->name),
1361 "%s %03x", cx->v4l2_dev.name, (state->rev >> 4));
1362 sd->grp_id = CX18_HW_418_AV;
1363 v4l2_ctrl_handler_init(&state->hdl, 9);
1364 v4l2_ctrl_new_std(&state->hdl, &cx18_av_ctrl_ops,
1365 V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1366 v4l2_ctrl_new_std(&state->hdl, &cx18_av_ctrl_ops,
1367 V4L2_CID_CONTRAST, 0, 127, 1, 64);
1368 v4l2_ctrl_new_std(&state->hdl, &cx18_av_ctrl_ops,
1369 V4L2_CID_SATURATION, 0, 127, 1, 64);
1370 v4l2_ctrl_new_std(&state->hdl, &cx18_av_ctrl_ops,
1371 V4L2_CID_HUE, -128, 127, 1, 0);
1372
1373 state->volume = v4l2_ctrl_new_std(&state->hdl,
1374 &cx18_av_audio_ctrl_ops, V4L2_CID_AUDIO_VOLUME,
1375 0, 65535, 65535 / 100, 0);
1376 v4l2_ctrl_new_std(&state->hdl,
1377 &cx18_av_audio_ctrl_ops, V4L2_CID_AUDIO_MUTE,
1378 0, 1, 1, 0);
1379 v4l2_ctrl_new_std(&state->hdl, &cx18_av_audio_ctrl_ops,
1380 V4L2_CID_AUDIO_BALANCE,
1381 0, 65535, 65535 / 100, 32768);
1382 v4l2_ctrl_new_std(&state->hdl, &cx18_av_audio_ctrl_ops,
1383 V4L2_CID_AUDIO_BASS,
1384 0, 65535, 65535 / 100, 32768);
1385 v4l2_ctrl_new_std(&state->hdl, &cx18_av_audio_ctrl_ops,
1386 V4L2_CID_AUDIO_TREBLE,
1387 0, 65535, 65535 / 100, 32768);
1388 sd->ctrl_handler = &state->hdl;
1389 if (state->hdl.error) {
1390 int err = state->hdl.error;
1391
1392 v4l2_ctrl_handler_free(&state->hdl);
1393 return err;
1394 }
1395 err = v4l2_device_register_subdev(&cx->v4l2_dev, sd);
1396 if (err)
1397 v4l2_ctrl_handler_free(&state->hdl);
1398 else
1399 cx18_av_init(cx);
1400 return err;
1401}
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-20 22:45:20 -0400