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Commit | Line | Data |
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d56410e0 | 1 | /* |
1da177e4 LT |
2 | * saa7185 - Philips SAA7185B video encoder driver version 0.0.3 |
3 | * | |
4 | * Copyright (C) 1998 Dave Perks <dperks@ibm.net> | |
5 | * | |
6 | * Slight changes for video timing and attachment output by | |
7 | * Wolfgang Scherr <scherr@net4you.net> | |
8 | * | |
9 | * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> | |
10 | * - moved over to linux>=2.4.x i2c protocol (1/1/2003) | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
26 | ||
27 | #include <linux/module.h> | |
18f3fa1e | 28 | #include <linux/types.h> |
5a0e3ad6 | 29 | #include <linux/slab.h> |
0afb351e | 30 | #include <linux/ioctl.h> |
18f3fa1e | 31 | #include <asm/uaccess.h> |
0afb351e | 32 | #include <linux/i2c.h> |
780d8e15 HV |
33 | #include <linux/videodev2.h> |
34 | #include <media/v4l2-device.h> | |
1da177e4 LT |
35 | |
36 | MODULE_DESCRIPTION("Philips SAA7185 video encoder driver"); | |
37 | MODULE_AUTHOR("Dave Perks"); | |
38 | MODULE_LICENSE("GPL"); | |
39 | ||
ff699e6b | 40 | static int debug; |
1da177e4 LT |
41 | module_param(debug, int, 0); |
42 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
43 | ||
780d8e15 | 44 | |
1da177e4 LT |
45 | /* ----------------------------------------------------------------------- */ |
46 | ||
47 | struct saa7185 { | |
780d8e15 | 48 | struct v4l2_subdev sd; |
1da177e4 LT |
49 | unsigned char reg[128]; |
50 | ||
107063c6 | 51 | v4l2_std_id norm; |
1da177e4 LT |
52 | }; |
53 | ||
780d8e15 HV |
54 | static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd) |
55 | { | |
56 | return container_of(sd, struct saa7185, sd); | |
57 | } | |
58 | ||
1da177e4 LT |
59 | /* ----------------------------------------------------------------------- */ |
60 | ||
780d8e15 | 61 | static inline int saa7185_read(struct v4l2_subdev *sd) |
1da177e4 | 62 | { |
780d8e15 HV |
63 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
64 | ||
1da177e4 LT |
65 | return i2c_smbus_read_byte(client); |
66 | } | |
67 | ||
780d8e15 | 68 | static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value) |
1da177e4 | 69 | { |
780d8e15 HV |
70 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
71 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 | 72 | |
780d8e15 | 73 | v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value); |
1da177e4 LT |
74 | encoder->reg[reg] = value; |
75 | return i2c_smbus_write_byte_data(client, reg, value); | |
76 | } | |
77 | ||
780d8e15 | 78 | static int saa7185_write_block(struct v4l2_subdev *sd, |
0afb351e | 79 | const u8 *data, unsigned int len) |
1da177e4 | 80 | { |
780d8e15 HV |
81 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
82 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 LT |
83 | int ret = -1; |
84 | u8 reg; | |
85 | ||
86 | /* the adv7175 has an autoincrement function, use it if | |
87 | * the adapter understands raw I2C */ | |
88 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
89 | /* do raw I2C, not smbus compatible */ | |
1da177e4 | 90 | u8 block_data[32]; |
9aa45e34 | 91 | int block_len; |
1da177e4 | 92 | |
1da177e4 | 93 | while (len >= 2) { |
9aa45e34 JD |
94 | block_len = 0; |
95 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 96 | do { |
9aa45e34 | 97 | block_data[block_len++] = |
1da177e4 LT |
98 | encoder->reg[reg++] = data[1]; |
99 | len -= 2; | |
100 | data += 2; | |
0afb351e HV |
101 | } while (len >= 2 && data[0] == reg && block_len < 32); |
102 | ret = i2c_master_send(client, block_data, block_len); | |
103 | if (ret < 0) | |
1da177e4 LT |
104 | break; |
105 | } | |
106 | } else { | |
107 | /* do some slow I2C emulation kind of thing */ | |
108 | while (len >= 2) { | |
109 | reg = *data++; | |
780d8e15 | 110 | ret = saa7185_write(sd, reg, *data++); |
0afb351e | 111 | if (ret < 0) |
1da177e4 LT |
112 | break; |
113 | len -= 2; | |
114 | } | |
115 | } | |
116 | ||
117 | return ret; | |
118 | } | |
119 | ||
120 | /* ----------------------------------------------------------------------- */ | |
121 | ||
122 | static const unsigned char init_common[] = { | |
123 | 0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1, | |
124 | * YUV2C=1, MY2C=1, MUV2C=1 */ | |
125 | ||
126 | 0x42, 0x6b, /* OVLY0=107 */ | |
127 | 0x43, 0x00, /* OVLU0=0 white */ | |
128 | 0x44, 0x00, /* OVLV0=0 */ | |
129 | 0x45, 0x22, /* OVLY1=34 */ | |
130 | 0x46, 0xac, /* OVLU1=172 yellow */ | |
131 | 0x47, 0x0e, /* OVLV1=14 */ | |
132 | 0x48, 0x03, /* OVLY2=3 */ | |
133 | 0x49, 0x1d, /* OVLU2=29 cyan */ | |
134 | 0x4a, 0xac, /* OVLV2=172 */ | |
135 | 0x4b, 0xf0, /* OVLY3=240 */ | |
136 | 0x4c, 0xc8, /* OVLU3=200 green */ | |
137 | 0x4d, 0xb9, /* OVLV3=185 */ | |
138 | 0x4e, 0xd4, /* OVLY4=212 */ | |
139 | 0x4f, 0x38, /* OVLU4=56 magenta */ | |
140 | 0x50, 0x47, /* OVLV4=71 */ | |
141 | 0x51, 0xc1, /* OVLY5=193 */ | |
142 | 0x52, 0xe3, /* OVLU5=227 red */ | |
143 | 0x53, 0x54, /* OVLV5=84 */ | |
144 | 0x54, 0xa3, /* OVLY6=163 */ | |
145 | 0x55, 0x54, /* OVLU6=84 blue */ | |
146 | 0x56, 0xf2, /* OVLV6=242 */ | |
147 | 0x57, 0x90, /* OVLY7=144 */ | |
148 | 0x58, 0x00, /* OVLU7=0 black */ | |
149 | 0x59, 0x00, /* OVLV7=0 */ | |
150 | ||
151 | 0x5a, 0x00, /* CHPS=0 */ | |
152 | 0x5b, 0x76, /* GAINU=118 */ | |
153 | 0x5c, 0xa5, /* GAINV=165 */ | |
154 | 0x5d, 0x3c, /* BLCKL=60 */ | |
155 | 0x5e, 0x3a, /* BLNNL=58 */ | |
156 | 0x5f, 0x3a, /* CCRS=0, BLNVB=58 */ | |
157 | 0x60, 0x00, /* NULL */ | |
158 | ||
159 | /* 0x61 - 0x66 set according to norm */ | |
160 | ||
161 | 0x67, 0x00, /* 0 : caption 1st byte odd field */ | |
162 | 0x68, 0x00, /* 0 : caption 2nd byte odd field */ | |
163 | 0x69, 0x00, /* 0 : caption 1st byte even field */ | |
164 | 0x6a, 0x00, /* 0 : caption 2nd byte even field */ | |
165 | ||
166 | 0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */ | |
167 | 0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0, | |
168 | * CBLF=0, ORCV2=0, PRCV2=0 */ | |
169 | 0x6d, 0x00, /* SRCM1=0, CCEN=0 */ | |
170 | ||
171 | 0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at | |
172 | * least for PAL */ | |
173 | 0x6f, 0x00, /* HTRIG upper bits */ | |
174 | 0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */ | |
175 | ||
176 | /* The following should not be needed */ | |
177 | ||
178 | 0x71, 0x15, /* BMRQ=0x115 */ | |
179 | 0x72, 0x90, /* EMRQ=0x690 */ | |
180 | 0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */ | |
181 | 0x74, 0x00, /* NULL */ | |
182 | 0x75, 0x00, /* NULL */ | |
183 | 0x76, 0x00, /* NULL */ | |
184 | 0x77, 0x15, /* BRCV=0x115 */ | |
185 | 0x78, 0x90, /* ERCV=0x690 */ | |
186 | 0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */ | |
187 | ||
188 | /* Field length controls */ | |
189 | ||
190 | 0x7a, 0x70, /* FLC=0 */ | |
191 | ||
192 | /* The following should not be needed if SBLN = 1 */ | |
193 | ||
194 | 0x7b, 0x16, /* FAL=22 */ | |
195 | 0x7c, 0x35, /* LAL=244 */ | |
196 | 0x7d, 0x20, /* LAL=244, FAL=22 */ | |
197 | }; | |
198 | ||
199 | static const unsigned char init_pal[] = { | |
200 | 0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1, | |
201 | * YGS=1, INPI=0, DOWN=0 */ | |
202 | 0x62, 0xc8, /* DECTYP=1, BSTA=72 */ | |
203 | 0x63, 0xcb, /* FSC0 */ | |
204 | 0x64, 0x8a, /* FSC1 */ | |
205 | 0x65, 0x09, /* FSC2 */ | |
206 | 0x66, 0x2a, /* FSC3 */ | |
207 | }; | |
208 | ||
209 | static const unsigned char init_ntsc[] = { | |
210 | 0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1, | |
211 | * YGS=1, INPI=0, DOWN=0 */ | |
212 | 0x62, 0xe6, /* DECTYP=1, BSTA=102 */ | |
213 | 0x63, 0x1f, /* FSC0 */ | |
214 | 0x64, 0x7c, /* FSC1 */ | |
215 | 0x65, 0xf0, /* FSC2 */ | |
216 | 0x66, 0x21, /* FSC3 */ | |
217 | }; | |
218 | ||
780d8e15 HV |
219 | |
220 | static int saa7185_init(struct v4l2_subdev *sd, u32 val) | |
221 | { | |
222 | struct saa7185 *encoder = to_saa7185(sd); | |
223 | ||
224 | saa7185_write_block(sd, init_common, sizeof(init_common)); | |
225 | if (encoder->norm & V4L2_STD_NTSC) | |
226 | saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); | |
227 | else | |
228 | saa7185_write_block(sd, init_pal, sizeof(init_pal)); | |
229 | return 0; | |
230 | } | |
231 | ||
232 | static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std) | |
233 | { | |
234 | struct saa7185 *encoder = to_saa7185(sd); | |
235 | ||
236 | if (std & V4L2_STD_NTSC) | |
237 | saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); | |
238 | else if (std & V4L2_STD_PAL) | |
239 | saa7185_write_block(sd, init_pal, sizeof(init_pal)); | |
240 | else | |
241 | return -EINVAL; | |
242 | encoder->norm = std; | |
243 | return 0; | |
244 | } | |
245 | ||
5325b427 HV |
246 | static int saa7185_s_routing(struct v4l2_subdev *sd, |
247 | u32 input, u32 output, u32 config) | |
1da177e4 | 248 | { |
780d8e15 HV |
249 | struct saa7185 *encoder = to_saa7185(sd); |
250 | ||
5325b427 HV |
251 | /* RJ: input = 0: input is from SA7111 |
252 | input = 1: input is from ZR36060 */ | |
780d8e15 | 253 | |
5325b427 | 254 | switch (input) { |
780d8e15 HV |
255 | case 0: |
256 | /* turn off colorbar */ | |
257 | saa7185_write(sd, 0x3a, 0x0f); | |
258 | /* Switch RTCE to 1 */ | |
259 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); | |
260 | saa7185_write(sd, 0x6e, 0x01); | |
1da177e4 LT |
261 | break; |
262 | ||
780d8e15 HV |
263 | case 1: |
264 | /* turn off colorbar */ | |
265 | saa7185_write(sd, 0x3a, 0x0f); | |
266 | /* Switch RTCE to 0 */ | |
267 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00); | |
268 | /* SW: a slight sync problem... */ | |
269 | saa7185_write(sd, 0x6e, 0x00); | |
1da177e4 LT |
270 | break; |
271 | ||
780d8e15 HV |
272 | case 2: |
273 | /* turn on colorbar */ | |
274 | saa7185_write(sd, 0x3a, 0x8f); | |
275 | /* Switch RTCE to 0 */ | |
276 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); | |
277 | /* SW: a slight sync problem... */ | |
278 | saa7185_write(sd, 0x6e, 0x01); | |
1da177e4 LT |
279 | break; |
280 | ||
1da177e4 LT |
281 | default: |
282 | return -EINVAL; | |
283 | } | |
1da177e4 LT |
284 | return 0; |
285 | } | |
286 | ||
287 | /* ----------------------------------------------------------------------- */ | |
288 | ||
780d8e15 | 289 | static const struct v4l2_subdev_core_ops saa7185_core_ops = { |
780d8e15 HV |
290 | .init = saa7185_init, |
291 | }; | |
1da177e4 | 292 | |
780d8e15 HV |
293 | static const struct v4l2_subdev_video_ops saa7185_video_ops = { |
294 | .s_std_output = saa7185_s_std_output, | |
295 | .s_routing = saa7185_s_routing, | |
296 | }; | |
297 | ||
298 | static const struct v4l2_subdev_ops saa7185_ops = { | |
299 | .core = &saa7185_core_ops, | |
300 | .video = &saa7185_video_ops, | |
301 | }; | |
302 | ||
303 | ||
304 | /* ----------------------------------------------------------------------- */ | |
d56410e0 | 305 | |
0afb351e HV |
306 | static int saa7185_probe(struct i2c_client *client, |
307 | const struct i2c_device_id *id) | |
1da177e4 LT |
308 | { |
309 | int i; | |
1da177e4 | 310 | struct saa7185 *encoder; |
780d8e15 | 311 | struct v4l2_subdev *sd; |
1da177e4 | 312 | |
1da177e4 | 313 | /* Check if the adapter supports the needed features */ |
0afb351e HV |
314 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
315 | return -ENODEV; | |
1da177e4 | 316 | |
0afb351e HV |
317 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
318 | client->addr << 1, client->adapter->name); | |
1da177e4 | 319 | |
c02b211d | 320 | encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL); |
0afb351e | 321 | if (encoder == NULL) |
1da177e4 | 322 | return -ENOMEM; |
107063c6 | 323 | encoder->norm = V4L2_STD_NTSC; |
780d8e15 HV |
324 | sd = &encoder->sd; |
325 | v4l2_i2c_subdev_init(sd, client, &saa7185_ops); | |
1da177e4 | 326 | |
780d8e15 | 327 | i = saa7185_write_block(sd, init_common, sizeof(init_common)); |
0afb351e | 328 | if (i >= 0) |
780d8e15 | 329 | i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); |
0afb351e | 330 | if (i < 0) |
780d8e15 | 331 | v4l2_dbg(1, debug, sd, "init error %d\n", i); |
0afb351e | 332 | else |
780d8e15 HV |
333 | v4l2_dbg(1, debug, sd, "revision 0x%x\n", |
334 | saa7185_read(sd) >> 5); | |
1da177e4 LT |
335 | return 0; |
336 | } | |
337 | ||
0afb351e | 338 | static int saa7185_remove(struct i2c_client *client) |
1da177e4 | 339 | { |
780d8e15 HV |
340 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
341 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 | 342 | |
780d8e15 HV |
343 | v4l2_device_unregister_subdev(sd); |
344 | /* SW: output off is active */ | |
345 | saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40); | |
1da177e4 LT |
346 | return 0; |
347 | } | |
348 | ||
349 | /* ----------------------------------------------------------------------- */ | |
350 | ||
0afb351e HV |
351 | static const struct i2c_device_id saa7185_id[] = { |
352 | { "saa7185", 0 }, | |
353 | { } | |
354 | }; | |
355 | MODULE_DEVICE_TABLE(i2c, saa7185_id); | |
1da177e4 | 356 | |
dfc5a016 HV |
357 | static struct i2c_driver saa7185_driver = { |
358 | .driver = { | |
359 | .owner = THIS_MODULE, | |
360 | .name = "saa7185", | |
361 | }, | |
362 | .probe = saa7185_probe, | |
363 | .remove = saa7185_remove, | |
364 | .id_table = saa7185_id, | |
1da177e4 | 365 | }; |
dfc5a016 | 366 | |
c6e8d86f | 367 | module_i2c_driver(saa7185_driver); |