1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Auvitek AU8522 QAM/8VSB demodulator driver and video decoder
4 *
5 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
6 * Copyright (C) 2005-2008 Auvitek International, Ltd.
7 */
8
9 /* Developer notes:
10 *
11 * Enough is implemented here for CVBS and S-Video inputs, but the actual
12 * analog demodulator code isn't implemented (not needed for xc5000 since it
13 * has its own demodulator and outputs CVBS)
14 *
15 */
16
17 #include <linux/kernel.h>
18 #include <linux/slab.h>
19 #include <linux/videodev2.h>
20 #include <linux/i2c.h>
21 #include <linux/delay.h>
22 #include <media/v4l2-common.h>
23 #include <media/v4l2-device.h>
24 #include "au8522.h"
25 #include "au8522_priv.h"
26
27 MODULE_AUTHOR("Devin Heitmueller");
28 MODULE_LICENSE("GPL");
29
30 static int au8522_analog_debug;
31
32
33 module_param_named(analog_debug, au8522_analog_debug, int, 0644);
34
35 MODULE_PARM_DESC(analog_debug,
36 "Analog debugging messages [0=Off (default) 1=On]");
37
38 struct au8522_register_config {
39 u16 reg_name;
40 u8 reg_val[8];
41 };
42
43
44 /* Video Decoder Filter Coefficients
45 The values are as follows from left to right
46 0="ATV RF" 1="ATV RF13" 2="CVBS" 3="S-Video" 4="PAL" 5=CVBS13" 6="SVideo13"
47 */
48 static const struct au8522_register_config filter_coef[] = {
49 {AU8522_FILTER_COEF_R410, {0x25, 0x00, 0x25, 0x25, 0x00, 0x00, 0x00} },
50 {AU8522_FILTER_COEF_R411, {0x20, 0x00, 0x20, 0x20, 0x00, 0x00, 0x00} },
51 {AU8522_FILTER_COEF_R412, {0x03, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00} },
52 {AU8522_FILTER_COEF_R413, {0xe6, 0x00, 0xe6, 0xe6, 0x00, 0x00, 0x00} },
53 {AU8522_FILTER_COEF_R414, {0x40, 0x00, 0x40, 0x40, 0x00, 0x00, 0x00} },
54 {AU8522_FILTER_COEF_R415, {0x1b, 0x00, 0x1b, 0x1b, 0x00, 0x00, 0x00} },
55 {AU8522_FILTER_COEF_R416, {0xc0, 0x00, 0xc0, 0x04, 0x00, 0x00, 0x00} },
56 {AU8522_FILTER_COEF_R417, {0x04, 0x00, 0x04, 0x04, 0x00, 0x00, 0x00} },
57 {AU8522_FILTER_COEF_R418, {0x8c, 0x00, 0x8c, 0x8c, 0x00, 0x00, 0x00} },
58 {AU8522_FILTER_COEF_R419, {0xa0, 0x40, 0xa0, 0xa0, 0x40, 0x40, 0x40} },
59 {AU8522_FILTER_COEF_R41A, {0x21, 0x09, 0x21, 0x21, 0x09, 0x09, 0x09} },
60 {AU8522_FILTER_COEF_R41B, {0x6c, 0x38, 0x6c, 0x6c, 0x38, 0x38, 0x38} },
61 {AU8522_FILTER_COEF_R41C, {0x03, 0xff, 0x03, 0x03, 0xff, 0xff, 0xff} },
62 {AU8522_FILTER_COEF_R41D, {0xbf, 0xc7, 0xbf, 0xbf, 0xc7, 0xc7, 0xc7} },
63 {AU8522_FILTER_COEF_R41E, {0xa0, 0xdf, 0xa0, 0xa0, 0xdf, 0xdf, 0xdf} },
64 {AU8522_FILTER_COEF_R41F, {0x10, 0x06, 0x10, 0x10, 0x06, 0x06, 0x06} },
65 {AU8522_FILTER_COEF_R420, {0xae, 0x30, 0xae, 0xae, 0x30, 0x30, 0x30} },
66 {AU8522_FILTER_COEF_R421, {0xc4, 0x01, 0xc4, 0xc4, 0x01, 0x01, 0x01} },
67 {AU8522_FILTER_COEF_R422, {0x54, 0xdd, 0x54, 0x54, 0xdd, 0xdd, 0xdd} },
68 {AU8522_FILTER_COEF_R423, {0xd0, 0xaf, 0xd0, 0xd0, 0xaf, 0xaf, 0xaf} },
69 {AU8522_FILTER_COEF_R424, {0x1c, 0xf7, 0x1c, 0x1c, 0xf7, 0xf7, 0xf7} },
70 {AU8522_FILTER_COEF_R425, {0x76, 0xdb, 0x76, 0x76, 0xdb, 0xdb, 0xdb} },
71 {AU8522_FILTER_COEF_R426, {0x61, 0xc0, 0x61, 0x61, 0xc0, 0xc0, 0xc0} },
72 {AU8522_FILTER_COEF_R427, {0xd1, 0x2f, 0xd1, 0xd1, 0x2f, 0x2f, 0x2f} },
73 {AU8522_FILTER_COEF_R428, {0x84, 0xd8, 0x84, 0x84, 0xd8, 0xd8, 0xd8} },
74 {AU8522_FILTER_COEF_R429, {0x06, 0xfb, 0x06, 0x06, 0xfb, 0xfb, 0xfb} },
75 {AU8522_FILTER_COEF_R42A, {0x21, 0xd5, 0x21, 0x21, 0xd5, 0xd5, 0xd5} },
76 {AU8522_FILTER_COEF_R42B, {0x0a, 0x3e, 0x0a, 0x0a, 0x3e, 0x3e, 0x3e} },
77 {AU8522_FILTER_COEF_R42C, {0xe6, 0x15, 0xe6, 0xe6, 0x15, 0x15, 0x15} },
78 {AU8522_FILTER_COEF_R42D, {0x01, 0x34, 0x01, 0x01, 0x34, 0x34, 0x34} },
79
80 };
81 #define NUM_FILTER_COEF (sizeof(filter_coef)\
82 / sizeof(struct au8522_register_config))
83
84
85 /* Registers 0x060b through 0x0652 are the LP Filter coefficients
86 The values are as follows from left to right
87 0="SIF" 1="ATVRF/ATVRF13"
88 Note: the "ATVRF/ATVRF13" mode has never been tested
89 */
90 static const struct au8522_register_config lpfilter_coef[] = {
91 {0x060b, {0x21, 0x0b} },
92 {0x060c, {0xad, 0xad} },
93 {0x060d, {0x70, 0xf0} },
94 {0x060e, {0xea, 0xe9} },
95 {0x060f, {0xdd, 0xdd} },
96 {0x0610, {0x08, 0x64} },
97 {0x0611, {0x60, 0x60} },
98 {0x0612, {0xf8, 0xb2} },
99 {0x0613, {0x01, 0x02} },
100 {0x0614, {0xe4, 0xb4} },
101 {0x0615, {0x19, 0x02} },
102 {0x0616, {0xae, 0x2e} },
103 {0x0617, {0xee, 0xc5} },
104 {0x0618, {0x56, 0x56} },
105 {0x0619, {0x30, 0x58} },
106 {0x061a, {0xf9, 0xf8} },
107 {0x061b, {0x24, 0x64} },
108 {0x061c, {0x07, 0x07} },
109 {0x061d, {0x30, 0x30} },
110 {0x061e, {0xa9, 0xed} },
111 {0x061f, {0x09, 0x0b} },
112 {0x0620, {0x42, 0xc2} },
113 {0x0621, {0x1d, 0x2a} },
114 {0x0622, {0xd6, 0x56} },
115 {0x0623, {0x95, 0x8b} },
116 {0x0624, {0x2b, 0x2b} },
117 {0x0625, {0x30, 0x24} },
118 {0x0626, {0x3e, 0x3e} },
119 {0x0627, {0x62, 0xe2} },
120 {0x0628, {0xe9, 0xf5} },
121 {0x0629, {0x99, 0x19} },
122 {0x062a, {0xd4, 0x11} },
123 {0x062b, {0x03, 0x04} },
124 {0x062c, {0xb5, 0x85} },
125 {0x062d, {0x1e, 0x20} },
126 {0x062e, {0x2a, 0xea} },
127 {0x062f, {0xd7, 0xd2} },
128 {0x0630, {0x15, 0x15} },
129 {0x0631, {0xa3, 0xa9} },
130 {0x0632, {0x1f, 0x1f} },
131 {0x0633, {0xf9, 0xd1} },
132 {0x0634, {0xc0, 0xc3} },
133 {0x0635, {0x4d, 0x8d} },
134 {0x0636, {0x21, 0x31} },
135 {0x0637, {0x83, 0x83} },
136 {0x0638, {0x08, 0x8c} },
137 {0x0639, {0x19, 0x19} },
138 {0x063a, {0x45, 0xa5} },
139 {0x063b, {0xef, 0xec} },
140 {0x063c, {0x8a, 0x8a} },
141 {0x063d, {0xf4, 0xf6} },
142 {0x063e, {0x8f, 0x8f} },
143 {0x063f, {0x44, 0x0c} },
144 {0x0640, {0xef, 0xf0} },
145 {0x0641, {0x66, 0x66} },
146 {0x0642, {0xcc, 0xd2} },
147 {0x0643, {0x41, 0x41} },
148 {0x0644, {0x63, 0x93} },
149 {0x0645, {0x8e, 0x8e} },
150 {0x0646, {0xa2, 0x42} },
151 {0x0647, {0x7b, 0x7b} },
152 {0x0648, {0x04, 0x04} },
153 {0x0649, {0x00, 0x00} },
154 {0x064a, {0x40, 0x40} },
155 {0x064b, {0x8c, 0x98} },
156 {0x064c, {0x00, 0x00} },
157 {0x064d, {0x63, 0xc3} },
158 {0x064e, {0x04, 0x04} },
159 {0x064f, {0x20, 0x20} },
160 {0x0650, {0x00, 0x00} },
161 {0x0651, {0x40, 0x40} },
162 {0x0652, {0x01, 0x01} },
163 };
164 #define NUM_LPFILTER_COEF (sizeof(lpfilter_coef)\
165 / sizeof(struct au8522_register_config))
166
to_state(struct v4l2_subdev * sd)167 static inline struct au8522_state *to_state(struct v4l2_subdev *sd)
168 {
169 return container_of(sd, struct au8522_state, sd);
170 }
171
setup_decoder_defaults(struct au8522_state * state,bool is_svideo)172 static void setup_decoder_defaults(struct au8522_state *state, bool is_svideo)
173 {
174 int i;
175 int filter_coef_type;
176
177 /* Provide reasonable defaults for picture tuning values */
178 au8522_writereg(state, AU8522_TVDEC_SHARPNESSREG009H, 0x07);
179 au8522_writereg(state, AU8522_TVDEC_BRIGHTNESS_REG00AH, 0xed);
180 au8522_writereg(state, AU8522_TVDEC_CONTRAST_REG00BH, 0x79);
181 au8522_writereg(state, AU8522_TVDEC_SATURATION_CB_REG00CH, 0x80);
182 au8522_writereg(state, AU8522_TVDEC_SATURATION_CR_REG00DH, 0x80);
183 au8522_writereg(state, AU8522_TVDEC_HUE_H_REG00EH, 0x00);
184 au8522_writereg(state, AU8522_TVDEC_HUE_L_REG00FH, 0x00);
185
186 /* Other decoder registers */
187 au8522_writereg(state, AU8522_TVDEC_INT_MASK_REG010H, 0x00);
188
189 if (is_svideo)
190 au8522_writereg(state, AU8522_VIDEO_MODE_REG011H, 0x04);
191 else
192 au8522_writereg(state, AU8522_VIDEO_MODE_REG011H, 0x00);
193
194 au8522_writereg(state, AU8522_TVDEC_PGA_REG012H,
195 AU8522_TVDEC_PGA_REG012H_CVBS);
196 au8522_writereg(state, AU8522_TVDEC_COMB_MODE_REG015H,
197 AU8522_TVDEC_COMB_MODE_REG015H_CVBS);
198 au8522_writereg(state, AU8522_TVDED_DBG_MODE_REG060H,
199 AU8522_TVDED_DBG_MODE_REG060H_CVBS);
200
201 if (state->std == V4L2_STD_PAL_M) {
202 au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL1_REG061H,
203 AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_525 |
204 AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_492 |
205 AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_AUTO);
206 au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL2_REG062H,
207 AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_PAL_M);
208 } else {
209 /* NTSC */
210 au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL1_REG061H,
211 AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_525 |
212 AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_492 |
213 AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_MN);
214 au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL2_REG062H,
215 AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_NTSC);
216 }
217 au8522_writereg(state, AU8522_TVDEC_VCR_DET_LLIM_REG063H,
218 AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS);
219 au8522_writereg(state, AU8522_TVDEC_VCR_DET_HLIM_REG064H,
220 AU8522_TVDEC_VCR_DET_HLIM_REG064H_CVBS);
221 au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR1_REG065H,
222 AU8522_TVDEC_COMB_VDIF_THR1_REG065H_CVBS);
223 au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR2_REG066H,
224 AU8522_TVDEC_COMB_VDIF_THR2_REG066H_CVBS);
225 au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR3_REG067H,
226 AU8522_TVDEC_COMB_VDIF_THR3_REG067H_CVBS);
227 au8522_writereg(state, AU8522_TVDEC_COMB_NOTCH_THR_REG068H,
228 AU8522_TVDEC_COMB_NOTCH_THR_REG068H_CVBS);
229 au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR1_REG069H,
230 AU8522_TVDEC_COMB_HDIF_THR1_REG069H_CVBS);
231 au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR2_REG06AH,
232 AU8522_TVDEC_COMB_HDIF_THR2_REG06AH_CVBS);
233 au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR3_REG06BH,
234 AU8522_TVDEC_COMB_HDIF_THR3_REG06BH_CVBS);
235 if (is_svideo) {
236 au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH,
237 AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH_SVIDEO);
238 au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH,
239 AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH_SVIDEO);
240 } else {
241 au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH,
242 AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH_CVBS);
243 au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH,
244 AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH_CVBS);
245 }
246 au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH,
247 AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH_CVBS);
248 au8522_writereg(state, AU8522_TVDEC_UV_SEP_THR_REG06FH,
249 AU8522_TVDEC_UV_SEP_THR_REG06FH_CVBS);
250 au8522_writereg(state, AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H,
251 AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H_CVBS);
252 au8522_writereg(state, AU8522_REG071H, AU8522_REG071H_CVBS);
253 au8522_writereg(state, AU8522_REG072H, AU8522_REG072H_CVBS);
254 au8522_writereg(state, AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H,
255 AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H_CVBS);
256 au8522_writereg(state, AU8522_REG074H, AU8522_REG074H_CVBS);
257 au8522_writereg(state, AU8522_REG075H, AU8522_REG075H_CVBS);
258 au8522_writereg(state, AU8522_TVDEC_DCAGC_CTRL_REG077H,
259 AU8522_TVDEC_DCAGC_CTRL_REG077H_CVBS);
260 au8522_writereg(state, AU8522_TVDEC_PIC_START_ADJ_REG078H,
261 AU8522_TVDEC_PIC_START_ADJ_REG078H_CVBS);
262 au8522_writereg(state, AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H,
263 AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H_CVBS);
264 au8522_writereg(state, AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH,
265 AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH_CVBS);
266 au8522_writereg(state, AU8522_TVDEC_INTRP_CTRL_REG07BH,
267 AU8522_TVDEC_INTRP_CTRL_REG07BH_CVBS);
268 au8522_writereg(state, AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H,
269 AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H_CVBS);
270 au8522_writereg(state, AU8522_TOREGAAGC_REG0E5H,
271 AU8522_TOREGAAGC_REG0E5H_CVBS);
272 au8522_writereg(state, AU8522_REG016H, AU8522_REG016H_CVBS);
273
274 /*
275 * Despite what the table says, for the HVR-950q we still need
276 * to be in CVBS mode for the S-Video input (reason unknown).
277 */
278 /* filter_coef_type = 3; */
279 filter_coef_type = 5;
280
281 /* Load the Video Decoder Filter Coefficients */
282 for (i = 0; i < NUM_FILTER_COEF; i++) {
283 au8522_writereg(state, filter_coef[i].reg_name,
284 filter_coef[i].reg_val[filter_coef_type]);
285 }
286
287 /* It's not clear what these registers are for, but they are always
288 set to the same value regardless of what mode we're in */
289 au8522_writereg(state, AU8522_REG42EH, 0x87);
290 au8522_writereg(state, AU8522_REG42FH, 0xa2);
291 au8522_writereg(state, AU8522_REG430H, 0xbf);
292 au8522_writereg(state, AU8522_REG431H, 0xcb);
293 au8522_writereg(state, AU8522_REG432H, 0xa1);
294 au8522_writereg(state, AU8522_REG433H, 0x41);
295 au8522_writereg(state, AU8522_REG434H, 0x88);
296 au8522_writereg(state, AU8522_REG435H, 0xc2);
297 au8522_writereg(state, AU8522_REG436H, 0x3c);
298 }
299
au8522_setup_cvbs_mode(struct au8522_state * state,u8 input_mode)300 static void au8522_setup_cvbs_mode(struct au8522_state *state, u8 input_mode)
301 {
302 /* here we're going to try the pre-programmed route */
303 au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
304 AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS);
305
306 /* PGA in automatic mode */
307 au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00);
308
309 /* Enable clamping control */
310 au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x00);
311
312 au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H, input_mode);
313
314 setup_decoder_defaults(state, false);
315
316 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
317 AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
318 }
319
au8522_setup_cvbs_tuner_mode(struct au8522_state * state,u8 input_mode)320 static void au8522_setup_cvbs_tuner_mode(struct au8522_state *state,
321 u8 input_mode)
322 {
323 /* here we're going to try the pre-programmed route */
324 au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
325 AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS);
326
327 /* It's not clear why we have to have the PGA in automatic mode while
328 enabling clamp control, but it's what Windows does */
329 au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00);
330
331 /* Enable clamping control */
332 au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x0e);
333
334 /* Disable automatic PGA (since the CVBS is coming from the tuner) */
335 au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x10);
336
337 /* Set input mode to CVBS on channel 4 with SIF audio input enabled */
338 au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H, input_mode);
339
340 setup_decoder_defaults(state, false);
341
342 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
343 AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
344 }
345
au8522_setup_svideo_mode(struct au8522_state * state,u8 input_mode)346 static void au8522_setup_svideo_mode(struct au8522_state *state,
347 u8 input_mode)
348 {
349 au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H,
350 AU8522_MODULE_CLOCK_CONTROL_REG0A3H_SVIDEO);
351
352 /* Set input to Y on Channe1, C on Channel 3 */
353 au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H, input_mode);
354
355 /* PGA in automatic mode */
356 au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00);
357
358 /* Enable clamping control */
359 au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x00);
360
361 setup_decoder_defaults(state, true);
362
363 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
364 AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS);
365 }
366
367 /* ----------------------------------------------------------------------- */
368
disable_audio_input(struct au8522_state * state)369 static void disable_audio_input(struct au8522_state *state)
370 {
371 au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x00);
372 au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x00);
373 au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0x00);
374
375 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H, 0x04);
376 au8522_writereg(state, AU8522_I2S_CTRL_2_REG112H, 0x02);
377
378 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
379 AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_SVIDEO);
380 }
381
382 /* 0=disable, 1=SIF */
set_audio_input(struct au8522_state * state)383 static void set_audio_input(struct au8522_state *state)
384 {
385 int aud_input = state->aud_input;
386 int i;
387
388 /* Note that this function needs to be used in conjunction with setting
389 the input routing via register 0x81 */
390
391 if (aud_input == AU8522_AUDIO_NONE) {
392 disable_audio_input(state);
393 return;
394 }
395
396 if (aud_input != AU8522_AUDIO_SIF) {
397 /* The caller asked for a mode we don't currently support */
398 printk(KERN_ERR "Unsupported audio mode requested! mode=%d\n",
399 aud_input);
400 return;
401 }
402
403 /* Load the Audio Decoder Filter Coefficients */
404 for (i = 0; i < NUM_LPFILTER_COEF; i++) {
405 au8522_writereg(state, lpfilter_coef[i].reg_name,
406 lpfilter_coef[i].reg_val[0]);
407 }
408
409 /* Set the volume */
410 au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x7F);
411 au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x7F);
412 au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0xff);
413
414 /* Not sure what this does */
415 au8522_writereg(state, AU8522_REG0F9H, AU8522_REG0F9H_AUDIO);
416
417 /* Setup the audio mode to stereo DBX */
418 au8522_writereg(state, AU8522_AUDIO_MODE_REG0F1H, 0x82);
419 msleep(70);
420
421 /* Start the audio processing module */
422 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, 0x9d);
423
424 /* Set the audio frequency to 48 KHz */
425 au8522_writereg(state, AU8522_AUDIOFREQ_REG606H, 0x03);
426
427 /* Set the I2S parameters (WS, LSB, mode, sample rate */
428 au8522_writereg(state, AU8522_I2S_CTRL_2_REG112H, 0xc2);
429
430 /* Enable the I2S output */
431 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H, 0x09);
432 }
433
434 /* ----------------------------------------------------------------------- */
435
au8522_s_ctrl(struct v4l2_ctrl * ctrl)436 static int au8522_s_ctrl(struct v4l2_ctrl *ctrl)
437 {
438 struct au8522_state *state =
439 container_of(ctrl->handler, struct au8522_state, hdl);
440
441 switch (ctrl->id) {
442 case V4L2_CID_BRIGHTNESS:
443 au8522_writereg(state, AU8522_TVDEC_BRIGHTNESS_REG00AH,
444 ctrl->val - 128);
445 break;
446 case V4L2_CID_CONTRAST:
447 au8522_writereg(state, AU8522_TVDEC_CONTRAST_REG00BH,
448 ctrl->val);
449 break;
450 case V4L2_CID_SATURATION:
451 au8522_writereg(state, AU8522_TVDEC_SATURATION_CB_REG00CH,
452 ctrl->val);
453 au8522_writereg(state, AU8522_TVDEC_SATURATION_CR_REG00DH,
454 ctrl->val);
455 break;
456 case V4L2_CID_HUE:
457 au8522_writereg(state, AU8522_TVDEC_HUE_H_REG00EH,
458 ctrl->val >> 8);
459 au8522_writereg(state, AU8522_TVDEC_HUE_L_REG00FH,
460 ctrl->val & 0xFF);
461 break;
462 default:
463 return -EINVAL;
464 }
465
466 return 0;
467 }
468
469 /* ----------------------------------------------------------------------- */
470
471 #ifdef CONFIG_VIDEO_ADV_DEBUG
au8522_g_register(struct v4l2_subdev * sd,struct v4l2_dbg_register * reg)472 static int au8522_g_register(struct v4l2_subdev *sd,
473 struct v4l2_dbg_register *reg)
474 {
475 struct au8522_state *state = to_state(sd);
476
477 reg->val = au8522_readreg(state, reg->reg & 0xffff);
478 return 0;
479 }
480
au8522_s_register(struct v4l2_subdev * sd,const struct v4l2_dbg_register * reg)481 static int au8522_s_register(struct v4l2_subdev *sd,
482 const struct v4l2_dbg_register *reg)
483 {
484 struct au8522_state *state = to_state(sd);
485
486 au8522_writereg(state, reg->reg, reg->val & 0xff);
487 return 0;
488 }
489 #endif
490
au8522_video_set(struct au8522_state * state)491 static void au8522_video_set(struct au8522_state *state)
492 {
493 u8 input_mode;
494
495 au8522_writereg(state, 0xa4, 1 << 5);
496
497 switch (state->vid_input) {
498 case AU8522_COMPOSITE_CH1:
499 input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH1;
500 au8522_setup_cvbs_mode(state, input_mode);
501 break;
502 case AU8522_COMPOSITE_CH2:
503 input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH2;
504 au8522_setup_cvbs_mode(state, input_mode);
505 break;
506 case AU8522_COMPOSITE_CH3:
507 input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH3;
508 au8522_setup_cvbs_mode(state, input_mode);
509 break;
510 case AU8522_COMPOSITE_CH4:
511 input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH4;
512 au8522_setup_cvbs_mode(state, input_mode);
513 break;
514 case AU8522_SVIDEO_CH13:
515 input_mode = AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13;
516 au8522_setup_svideo_mode(state, input_mode);
517 break;
518 case AU8522_SVIDEO_CH24:
519 input_mode = AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH24;
520 au8522_setup_svideo_mode(state, input_mode);
521 break;
522 default:
523 case AU8522_COMPOSITE_CH4_SIF:
524 input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH4_SIF;
525 au8522_setup_cvbs_tuner_mode(state, input_mode);
526 break;
527 }
528 }
529
au8522_s_stream(struct v4l2_subdev * sd,int enable)530 static int au8522_s_stream(struct v4l2_subdev *sd, int enable)
531 {
532 struct au8522_state *state = to_state(sd);
533
534 if (enable) {
535 /*
536 * Clear out any state associated with the digital side of the
537 * chip, so that when it gets powered back up it won't think
538 * that it is already tuned
539 */
540 state->current_frequency = 0;
541
542 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
543 0x01);
544 msleep(10);
545
546 au8522_video_set(state);
547 set_audio_input(state);
548
549 state->operational_mode = AU8522_ANALOG_MODE;
550 } else {
551 /* This does not completely power down the device
552 (it only reduces it from around 140ma to 80ma) */
553 au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H,
554 1 << 5);
555 state->operational_mode = AU8522_SUSPEND_MODE;
556 }
557 return 0;
558 }
559
au8522_s_video_routing(struct v4l2_subdev * sd,u32 input,u32 output,u32 config)560 static int au8522_s_video_routing(struct v4l2_subdev *sd,
561 u32 input, u32 output, u32 config)
562 {
563 struct au8522_state *state = to_state(sd);
564
565 switch(input) {
566 case AU8522_COMPOSITE_CH1:
567 case AU8522_SVIDEO_CH13:
568 case AU8522_COMPOSITE_CH4_SIF:
569 state->vid_input = input;
570 break;
571 default:
572 printk(KERN_ERR "au8522 mode not currently supported\n");
573 return -EINVAL;
574 }
575
576 if (state->operational_mode == AU8522_ANALOG_MODE)
577 au8522_video_set(state);
578
579 return 0;
580 }
581
au8522_s_std(struct v4l2_subdev * sd,v4l2_std_id std)582 static int au8522_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
583 {
584 struct au8522_state *state = to_state(sd);
585
586 if ((std & (V4L2_STD_PAL_M | V4L2_STD_NTSC_M)) == 0)
587 return -EINVAL;
588
589 state->std = std;
590
591 if (state->operational_mode == AU8522_ANALOG_MODE)
592 au8522_video_set(state);
593
594 return 0;
595 }
596
au8522_s_audio_routing(struct v4l2_subdev * sd,u32 input,u32 output,u32 config)597 static int au8522_s_audio_routing(struct v4l2_subdev *sd,
598 u32 input, u32 output, u32 config)
599 {
600 struct au8522_state *state = to_state(sd);
601
602 state->aud_input = input;
603
604 if (state->operational_mode == AU8522_ANALOG_MODE)
605 set_audio_input(state);
606
607 return 0;
608 }
609
au8522_g_tuner(struct v4l2_subdev * sd,struct v4l2_tuner * vt)610 static int au8522_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
611 {
612 int val = 0;
613 struct au8522_state *state = to_state(sd);
614 u8 lock_status;
615 u8 pll_status;
616
617 /* Interrogate the decoder to see if we are getting a real signal */
618 lock_status = au8522_readreg(state, 0x00);
619 pll_status = au8522_readreg(state, 0x7e);
620 if ((lock_status == 0xa2) && (pll_status & 0x10))
621 vt->signal = 0xffff;
622 else
623 vt->signal = 0x00;
624
625 vt->capability |=
626 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
627 V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
628
629 val = V4L2_TUNER_SUB_MONO;
630 vt->rxsubchans = val;
631 vt->audmode = V4L2_TUNER_MODE_STEREO;
632 return 0;
633 }
634
635 /* ----------------------------------------------------------------------- */
636
637 static const struct v4l2_subdev_core_ops au8522_core_ops = {
638 .log_status = v4l2_ctrl_subdev_log_status,
639 #ifdef CONFIG_VIDEO_ADV_DEBUG
640 .g_register = au8522_g_register,
641 .s_register = au8522_s_register,
642 #endif
643 };
644
645 static const struct v4l2_subdev_tuner_ops au8522_tuner_ops = {
646 .g_tuner = au8522_g_tuner,
647 };
648
649 static const struct v4l2_subdev_audio_ops au8522_audio_ops = {
650 .s_routing = au8522_s_audio_routing,
651 };
652
653 static const struct v4l2_subdev_video_ops au8522_video_ops = {
654 .s_routing = au8522_s_video_routing,
655 .s_stream = au8522_s_stream,
656 .s_std = au8522_s_std,
657 };
658
659 static const struct v4l2_subdev_ops au8522_ops = {
660 .core = &au8522_core_ops,
661 .tuner = &au8522_tuner_ops,
662 .audio = &au8522_audio_ops,
663 .video = &au8522_video_ops,
664 };
665
666 static const struct v4l2_ctrl_ops au8522_ctrl_ops = {
667 .s_ctrl = au8522_s_ctrl,
668 };
669
670 /* ----------------------------------------------------------------------- */
671
au8522_probe(struct i2c_client * client,const struct i2c_device_id * did)672 static int au8522_probe(struct i2c_client *client,
673 const struct i2c_device_id *did)
674 {
675 struct au8522_state *state;
676 struct v4l2_ctrl_handler *hdl;
677 struct v4l2_subdev *sd;
678 int instance;
679 #ifdef CONFIG_MEDIA_CONTROLLER
680 int ret;
681 #endif
682
683 /* Check if the adapter supports the needed features */
684 if (!i2c_check_functionality(client->adapter,
685 I2C_FUNC_SMBUS_BYTE_DATA)) {
686 return -EIO;
687 }
688
689 /* allocate memory for the internal state */
690 instance = au8522_get_state(&state, client->adapter, client->addr);
691 switch (instance) {
692 case 0:
693 printk(KERN_ERR "au8522_decoder allocation failed\n");
694 return -EIO;
695 case 1:
696 /* new demod instance */
697 printk(KERN_INFO "au8522_decoder creating new instance...\n");
698 break;
699 default:
700 /* existing demod instance */
701 printk(KERN_INFO "au8522_decoder attach existing instance.\n");
702 break;
703 }
704
705 state->config.demod_address = 0x8e >> 1;
706 state->i2c = client->adapter;
707
708 sd = &state->sd;
709 v4l2_i2c_subdev_init(sd, client, &au8522_ops);
710 #if defined(CONFIG_MEDIA_CONTROLLER)
711
712 state->pads[AU8522_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
713 state->pads[AU8522_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
714 state->pads[AU8522_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
715 state->pads[AU8522_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
716 state->pads[AU8522_PAD_AUDIO_OUT].flags = MEDIA_PAD_FL_SOURCE;
717 state->pads[AU8522_PAD_AUDIO_OUT].sig_type = PAD_SIGNAL_AUDIO;
718 sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
719
720 ret = media_entity_pads_init(&sd->entity, ARRAY_SIZE(state->pads),
721 state->pads);
722 if (ret < 0) {
723 v4l_info(client, "failed to initialize media entity!\n");
724 return ret;
725 }
726 #endif
727
728 hdl = &state->hdl;
729 v4l2_ctrl_handler_init(hdl, 4);
730 v4l2_ctrl_new_std(hdl, &au8522_ctrl_ops,
731 V4L2_CID_BRIGHTNESS, 0, 255, 1, 109);
732 v4l2_ctrl_new_std(hdl, &au8522_ctrl_ops,
733 V4L2_CID_CONTRAST, 0, 255, 1,
734 AU8522_TVDEC_CONTRAST_REG00BH_CVBS);
735 v4l2_ctrl_new_std(hdl, &au8522_ctrl_ops,
736 V4L2_CID_SATURATION, 0, 255, 1, 128);
737 v4l2_ctrl_new_std(hdl, &au8522_ctrl_ops,
738 V4L2_CID_HUE, -32768, 32767, 1, 0);
739 sd->ctrl_handler = hdl;
740 if (hdl->error) {
741 int err = hdl->error;
742
743 v4l2_ctrl_handler_free(hdl);
744 au8522_release_state(state);
745 return err;
746 }
747
748 state->c = client;
749 state->std = V4L2_STD_NTSC_M;
750 state->vid_input = AU8522_COMPOSITE_CH1;
751 state->aud_input = AU8522_AUDIO_NONE;
752 state->id = 8522;
753 state->rev = 0;
754
755 /* Jam open the i2c gate to the tuner */
756 au8522_writereg(state, 0x106, 1);
757
758 return 0;
759 }
760
au8522_remove(struct i2c_client * client)761 static int au8522_remove(struct i2c_client *client)
762 {
763 struct v4l2_subdev *sd = i2c_get_clientdata(client);
764 v4l2_device_unregister_subdev(sd);
765 v4l2_ctrl_handler_free(sd->ctrl_handler);
766 au8522_release_state(to_state(sd));
767 return 0;
768 }
769
770 static const struct i2c_device_id au8522_id[] = {
771 {"au8522", 0},
772 {}
773 };
774
775 MODULE_DEVICE_TABLE(i2c, au8522_id);
776
777 static struct i2c_driver au8522_driver = {
778 .driver = {
779 .name = "au8522",
780 },
781 .probe = au8522_probe,
782 .remove = au8522_remove,
783 .id_table = au8522_id,
784 };
785
786 module_i2c_driver(au8522_driver);
787
