Commit | Line | Data |
---|---|---|
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> | |
35 | #include <media/v4l2-chip-ident.h> | |
1da177e4 LT |
36 | |
37 | MODULE_DESCRIPTION("Philips SAA7185 video encoder driver"); | |
38 | MODULE_AUTHOR("Dave Perks"); | |
39 | MODULE_LICENSE("GPL"); | |
40 | ||
ff699e6b | 41 | static int debug; |
1da177e4 LT |
42 | module_param(debug, int, 0); |
43 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
44 | ||
780d8e15 | 45 | |
1da177e4 LT |
46 | /* ----------------------------------------------------------------------- */ |
47 | ||
48 | struct saa7185 { | |
780d8e15 | 49 | struct v4l2_subdev sd; |
1da177e4 LT |
50 | unsigned char reg[128]; |
51 | ||
107063c6 | 52 | v4l2_std_id norm; |
1da177e4 LT |
53 | }; |
54 | ||
780d8e15 HV |
55 | static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd) |
56 | { | |
57 | return container_of(sd, struct saa7185, sd); | |
58 | } | |
59 | ||
1da177e4 LT |
60 | /* ----------------------------------------------------------------------- */ |
61 | ||
780d8e15 | 62 | static inline int saa7185_read(struct v4l2_subdev *sd) |
1da177e4 | 63 | { |
780d8e15 HV |
64 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
65 | ||
1da177e4 LT |
66 | return i2c_smbus_read_byte(client); |
67 | } | |
68 | ||
780d8e15 | 69 | static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value) |
1da177e4 | 70 | { |
780d8e15 HV |
71 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
72 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 | 73 | |
780d8e15 | 74 | v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value); |
1da177e4 LT |
75 | encoder->reg[reg] = value; |
76 | return i2c_smbus_write_byte_data(client, reg, value); | |
77 | } | |
78 | ||
780d8e15 | 79 | static int saa7185_write_block(struct v4l2_subdev *sd, |
0afb351e | 80 | const u8 *data, unsigned int len) |
1da177e4 | 81 | { |
780d8e15 HV |
82 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
83 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 LT |
84 | int ret = -1; |
85 | u8 reg; | |
86 | ||
87 | /* the adv7175 has an autoincrement function, use it if | |
88 | * the adapter understands raw I2C */ | |
89 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
90 | /* do raw I2C, not smbus compatible */ | |
1da177e4 | 91 | u8 block_data[32]; |
9aa45e34 | 92 | int block_len; |
1da177e4 | 93 | |
1da177e4 | 94 | while (len >= 2) { |
9aa45e34 JD |
95 | block_len = 0; |
96 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 97 | do { |
9aa45e34 | 98 | block_data[block_len++] = |
1da177e4 LT |
99 | encoder->reg[reg++] = data[1]; |
100 | len -= 2; | |
101 | data += 2; | |
0afb351e HV |
102 | } while (len >= 2 && data[0] == reg && block_len < 32); |
103 | ret = i2c_master_send(client, block_data, block_len); | |
104 | if (ret < 0) | |
1da177e4 LT |
105 | break; |
106 | } | |
107 | } else { | |
108 | /* do some slow I2C emulation kind of thing */ | |
109 | while (len >= 2) { | |
110 | reg = *data++; | |
780d8e15 | 111 | ret = saa7185_write(sd, reg, *data++); |
0afb351e | 112 | if (ret < 0) |
1da177e4 LT |
113 | break; |
114 | len -= 2; | |
115 | } | |
116 | } | |
117 | ||
118 | return ret; | |
119 | } | |
120 | ||
121 | /* ----------------------------------------------------------------------- */ | |
122 | ||
123 | static const unsigned char init_common[] = { | |
124 | 0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1, | |
125 | * YUV2C=1, MY2C=1, MUV2C=1 */ | |
126 | ||
127 | 0x42, 0x6b, /* OVLY0=107 */ | |
128 | 0x43, 0x00, /* OVLU0=0 white */ | |
129 | 0x44, 0x00, /* OVLV0=0 */ | |
130 | 0x45, 0x22, /* OVLY1=34 */ | |
131 | 0x46, 0xac, /* OVLU1=172 yellow */ | |
132 | 0x47, 0x0e, /* OVLV1=14 */ | |
133 | 0x48, 0x03, /* OVLY2=3 */ | |
134 | 0x49, 0x1d, /* OVLU2=29 cyan */ | |
135 | 0x4a, 0xac, /* OVLV2=172 */ | |
136 | 0x4b, 0xf0, /* OVLY3=240 */ | |
137 | 0x4c, 0xc8, /* OVLU3=200 green */ | |
138 | 0x4d, 0xb9, /* OVLV3=185 */ | |
139 | 0x4e, 0xd4, /* OVLY4=212 */ | |
140 | 0x4f, 0x38, /* OVLU4=56 magenta */ | |
141 | 0x50, 0x47, /* OVLV4=71 */ | |
142 | 0x51, 0xc1, /* OVLY5=193 */ | |
143 | 0x52, 0xe3, /* OVLU5=227 red */ | |
144 | 0x53, 0x54, /* OVLV5=84 */ | |
145 | 0x54, 0xa3, /* OVLY6=163 */ | |
146 | 0x55, 0x54, /* OVLU6=84 blue */ | |
147 | 0x56, 0xf2, /* OVLV6=242 */ | |
148 | 0x57, 0x90, /* OVLY7=144 */ | |
149 | 0x58, 0x00, /* OVLU7=0 black */ | |
150 | 0x59, 0x00, /* OVLV7=0 */ | |
151 | ||
152 | 0x5a, 0x00, /* CHPS=0 */ | |
153 | 0x5b, 0x76, /* GAINU=118 */ | |
154 | 0x5c, 0xa5, /* GAINV=165 */ | |
155 | 0x5d, 0x3c, /* BLCKL=60 */ | |
156 | 0x5e, 0x3a, /* BLNNL=58 */ | |
157 | 0x5f, 0x3a, /* CCRS=0, BLNVB=58 */ | |
158 | 0x60, 0x00, /* NULL */ | |
159 | ||
160 | /* 0x61 - 0x66 set according to norm */ | |
161 | ||
162 | 0x67, 0x00, /* 0 : caption 1st byte odd field */ | |
163 | 0x68, 0x00, /* 0 : caption 2nd byte odd field */ | |
164 | 0x69, 0x00, /* 0 : caption 1st byte even field */ | |
165 | 0x6a, 0x00, /* 0 : caption 2nd byte even field */ | |
166 | ||
167 | 0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */ | |
168 | 0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0, | |
169 | * CBLF=0, ORCV2=0, PRCV2=0 */ | |
170 | 0x6d, 0x00, /* SRCM1=0, CCEN=0 */ | |
171 | ||
172 | 0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at | |
173 | * least for PAL */ | |
174 | 0x6f, 0x00, /* HTRIG upper bits */ | |
175 | 0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */ | |
176 | ||
177 | /* The following should not be needed */ | |
178 | ||
179 | 0x71, 0x15, /* BMRQ=0x115 */ | |
180 | 0x72, 0x90, /* EMRQ=0x690 */ | |
181 | 0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */ | |
182 | 0x74, 0x00, /* NULL */ | |
183 | 0x75, 0x00, /* NULL */ | |
184 | 0x76, 0x00, /* NULL */ | |
185 | 0x77, 0x15, /* BRCV=0x115 */ | |
186 | 0x78, 0x90, /* ERCV=0x690 */ | |
187 | 0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */ | |
188 | ||
189 | /* Field length controls */ | |
190 | ||
191 | 0x7a, 0x70, /* FLC=0 */ | |
192 | ||
193 | /* The following should not be needed if SBLN = 1 */ | |
194 | ||
195 | 0x7b, 0x16, /* FAL=22 */ | |
196 | 0x7c, 0x35, /* LAL=244 */ | |
197 | 0x7d, 0x20, /* LAL=244, FAL=22 */ | |
198 | }; | |
199 | ||
200 | static const unsigned char init_pal[] = { | |
201 | 0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1, | |
202 | * YGS=1, INPI=0, DOWN=0 */ | |
203 | 0x62, 0xc8, /* DECTYP=1, BSTA=72 */ | |
204 | 0x63, 0xcb, /* FSC0 */ | |
205 | 0x64, 0x8a, /* FSC1 */ | |
206 | 0x65, 0x09, /* FSC2 */ | |
207 | 0x66, 0x2a, /* FSC3 */ | |
208 | }; | |
209 | ||
210 | static const unsigned char init_ntsc[] = { | |
211 | 0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1, | |
212 | * YGS=1, INPI=0, DOWN=0 */ | |
213 | 0x62, 0xe6, /* DECTYP=1, BSTA=102 */ | |
214 | 0x63, 0x1f, /* FSC0 */ | |
215 | 0x64, 0x7c, /* FSC1 */ | |
216 | 0x65, 0xf0, /* FSC2 */ | |
217 | 0x66, 0x21, /* FSC3 */ | |
218 | }; | |
219 | ||
780d8e15 HV |
220 | |
221 | static int saa7185_init(struct v4l2_subdev *sd, u32 val) | |
222 | { | |
223 | struct saa7185 *encoder = to_saa7185(sd); | |
224 | ||
225 | saa7185_write_block(sd, init_common, sizeof(init_common)); | |
226 | if (encoder->norm & V4L2_STD_NTSC) | |
227 | saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); | |
228 | else | |
229 | saa7185_write_block(sd, init_pal, sizeof(init_pal)); | |
230 | return 0; | |
231 | } | |
232 | ||
233 | static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std) | |
234 | { | |
235 | struct saa7185 *encoder = to_saa7185(sd); | |
236 | ||
237 | if (std & V4L2_STD_NTSC) | |
238 | saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); | |
239 | else if (std & V4L2_STD_PAL) | |
240 | saa7185_write_block(sd, init_pal, sizeof(init_pal)); | |
241 | else | |
242 | return -EINVAL; | |
243 | encoder->norm = std; | |
244 | return 0; | |
245 | } | |
246 | ||
5325b427 HV |
247 | static int saa7185_s_routing(struct v4l2_subdev *sd, |
248 | u32 input, u32 output, u32 config) | |
1da177e4 | 249 | { |
780d8e15 HV |
250 | struct saa7185 *encoder = to_saa7185(sd); |
251 | ||
5325b427 HV |
252 | /* RJ: input = 0: input is from SA7111 |
253 | input = 1: input is from ZR36060 */ | |
780d8e15 | 254 | |
5325b427 | 255 | switch (input) { |
780d8e15 HV |
256 | case 0: |
257 | /* turn off colorbar */ | |
258 | saa7185_write(sd, 0x3a, 0x0f); | |
259 | /* Switch RTCE to 1 */ | |
260 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); | |
261 | saa7185_write(sd, 0x6e, 0x01); | |
1da177e4 LT |
262 | break; |
263 | ||
780d8e15 HV |
264 | case 1: |
265 | /* turn off colorbar */ | |
266 | saa7185_write(sd, 0x3a, 0x0f); | |
267 | /* Switch RTCE to 0 */ | |
268 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00); | |
269 | /* SW: a slight sync problem... */ | |
270 | saa7185_write(sd, 0x6e, 0x00); | |
1da177e4 LT |
271 | break; |
272 | ||
780d8e15 HV |
273 | case 2: |
274 | /* turn on colorbar */ | |
275 | saa7185_write(sd, 0x3a, 0x8f); | |
276 | /* Switch RTCE to 0 */ | |
277 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); | |
278 | /* SW: a slight sync problem... */ | |
279 | saa7185_write(sd, 0x6e, 0x01); | |
1da177e4 LT |
280 | break; |
281 | ||
1da177e4 LT |
282 | default: |
283 | return -EINVAL; | |
284 | } | |
1da177e4 LT |
285 | return 0; |
286 | } | |
287 | ||
780d8e15 HV |
288 | static int saa7185_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) |
289 | { | |
290 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
291 | ||
292 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7185, 0); | |
293 | } | |
294 | ||
1da177e4 LT |
295 | /* ----------------------------------------------------------------------- */ |
296 | ||
780d8e15 HV |
297 | static const struct v4l2_subdev_core_ops saa7185_core_ops = { |
298 | .g_chip_ident = saa7185_g_chip_ident, | |
299 | .init = saa7185_init, | |
300 | }; | |
1da177e4 | 301 | |
780d8e15 HV |
302 | static const struct v4l2_subdev_video_ops saa7185_video_ops = { |
303 | .s_std_output = saa7185_s_std_output, | |
304 | .s_routing = saa7185_s_routing, | |
305 | }; | |
306 | ||
307 | static const struct v4l2_subdev_ops saa7185_ops = { | |
308 | .core = &saa7185_core_ops, | |
309 | .video = &saa7185_video_ops, | |
310 | }; | |
311 | ||
312 | ||
313 | /* ----------------------------------------------------------------------- */ | |
d56410e0 | 314 | |
0afb351e HV |
315 | static int saa7185_probe(struct i2c_client *client, |
316 | const struct i2c_device_id *id) | |
1da177e4 LT |
317 | { |
318 | int i; | |
1da177e4 | 319 | struct saa7185 *encoder; |
780d8e15 | 320 | struct v4l2_subdev *sd; |
1da177e4 | 321 | |
1da177e4 | 322 | /* Check if the adapter supports the needed features */ |
0afb351e HV |
323 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
324 | return -ENODEV; | |
1da177e4 | 325 | |
0afb351e HV |
326 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
327 | client->addr << 1, client->adapter->name); | |
1da177e4 | 328 | |
7408187d | 329 | encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL); |
0afb351e | 330 | if (encoder == NULL) |
1da177e4 | 331 | return -ENOMEM; |
107063c6 | 332 | encoder->norm = V4L2_STD_NTSC; |
780d8e15 HV |
333 | sd = &encoder->sd; |
334 | v4l2_i2c_subdev_init(sd, client, &saa7185_ops); | |
1da177e4 | 335 | |
780d8e15 | 336 | i = saa7185_write_block(sd, init_common, sizeof(init_common)); |
0afb351e | 337 | if (i >= 0) |
780d8e15 | 338 | i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); |
0afb351e | 339 | if (i < 0) |
780d8e15 | 340 | v4l2_dbg(1, debug, sd, "init error %d\n", i); |
0afb351e | 341 | else |
780d8e15 HV |
342 | v4l2_dbg(1, debug, sd, "revision 0x%x\n", |
343 | saa7185_read(sd) >> 5); | |
1da177e4 LT |
344 | return 0; |
345 | } | |
346 | ||
0afb351e | 347 | static int saa7185_remove(struct i2c_client *client) |
1da177e4 | 348 | { |
780d8e15 HV |
349 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
350 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 | 351 | |
780d8e15 HV |
352 | v4l2_device_unregister_subdev(sd); |
353 | /* SW: output off is active */ | |
354 | saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40); | |
1da177e4 | 355 | kfree(encoder); |
1da177e4 LT |
356 | return 0; |
357 | } | |
358 | ||
359 | /* ----------------------------------------------------------------------- */ | |
360 | ||
0afb351e HV |
361 | static const struct i2c_device_id saa7185_id[] = { |
362 | { "saa7185", 0 }, | |
363 | { } | |
364 | }; | |
365 | MODULE_DEVICE_TABLE(i2c, saa7185_id); | |
1da177e4 | 366 | |
dfc5a016 HV |
367 | static struct i2c_driver saa7185_driver = { |
368 | .driver = { | |
369 | .owner = THIS_MODULE, | |
370 | .name = "saa7185", | |
371 | }, | |
372 | .probe = saa7185_probe, | |
373 | .remove = saa7185_remove, | |
374 | .id_table = saa7185_id, | |
1da177e4 | 375 | }; |
dfc5a016 HV |
376 | |
377 | static __init int init_saa7185(void) | |
378 | { | |
379 | return i2c_add_driver(&saa7185_driver); | |
380 | } | |
381 | ||
382 | static __exit void exit_saa7185(void) | |
383 | { | |
384 | i2c_del_driver(&saa7185_driver); | |
385 | } | |
386 | ||
387 | module_init(init_saa7185); | |
388 | module_exit(exit_saa7185); |