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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 HV |
32 | #include <linux/i2c.h> |
33 | #include <linux/i2c-id.h> | |
780d8e15 HV |
34 | #include <linux/videodev2.h> |
35 | #include <media/v4l2-device.h> | |
36 | #include <media/v4l2-chip-ident.h> | |
2d26698e | 37 | #include <media/v4l2-i2c-drv.h> |
1da177e4 LT |
38 | |
39 | MODULE_DESCRIPTION("Philips SAA7185 video encoder driver"); | |
40 | MODULE_AUTHOR("Dave Perks"); | |
41 | MODULE_LICENSE("GPL"); | |
42 | ||
ff699e6b | 43 | static int debug; |
1da177e4 LT |
44 | module_param(debug, int, 0); |
45 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
46 | ||
780d8e15 | 47 | |
1da177e4 LT |
48 | /* ----------------------------------------------------------------------- */ |
49 | ||
50 | struct saa7185 { | |
780d8e15 | 51 | struct v4l2_subdev sd; |
1da177e4 LT |
52 | unsigned char reg[128]; |
53 | ||
107063c6 | 54 | v4l2_std_id norm; |
1da177e4 LT |
55 | }; |
56 | ||
780d8e15 HV |
57 | static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd) |
58 | { | |
59 | return container_of(sd, struct saa7185, sd); | |
60 | } | |
61 | ||
1da177e4 LT |
62 | /* ----------------------------------------------------------------------- */ |
63 | ||
780d8e15 | 64 | static inline int saa7185_read(struct v4l2_subdev *sd) |
1da177e4 | 65 | { |
780d8e15 HV |
66 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
67 | ||
1da177e4 LT |
68 | return i2c_smbus_read_byte(client); |
69 | } | |
70 | ||
780d8e15 | 71 | static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value) |
1da177e4 | 72 | { |
780d8e15 HV |
73 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
74 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 | 75 | |
780d8e15 | 76 | v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value); |
1da177e4 LT |
77 | encoder->reg[reg] = value; |
78 | return i2c_smbus_write_byte_data(client, reg, value); | |
79 | } | |
80 | ||
780d8e15 | 81 | static int saa7185_write_block(struct v4l2_subdev *sd, |
0afb351e | 82 | const u8 *data, unsigned int len) |
1da177e4 | 83 | { |
780d8e15 HV |
84 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
85 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 LT |
86 | int ret = -1; |
87 | u8 reg; | |
88 | ||
89 | /* the adv7175 has an autoincrement function, use it if | |
90 | * the adapter understands raw I2C */ | |
91 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
92 | /* do raw I2C, not smbus compatible */ | |
1da177e4 | 93 | u8 block_data[32]; |
9aa45e34 | 94 | int block_len; |
1da177e4 | 95 | |
1da177e4 | 96 | while (len >= 2) { |
9aa45e34 JD |
97 | block_len = 0; |
98 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 99 | do { |
9aa45e34 | 100 | block_data[block_len++] = |
1da177e4 LT |
101 | encoder->reg[reg++] = data[1]; |
102 | len -= 2; | |
103 | data += 2; | |
0afb351e HV |
104 | } while (len >= 2 && data[0] == reg && block_len < 32); |
105 | ret = i2c_master_send(client, block_data, block_len); | |
106 | if (ret < 0) | |
1da177e4 LT |
107 | break; |
108 | } | |
109 | } else { | |
110 | /* do some slow I2C emulation kind of thing */ | |
111 | while (len >= 2) { | |
112 | reg = *data++; | |
780d8e15 | 113 | ret = saa7185_write(sd, reg, *data++); |
0afb351e | 114 | if (ret < 0) |
1da177e4 LT |
115 | break; |
116 | len -= 2; | |
117 | } | |
118 | } | |
119 | ||
120 | return ret; | |
121 | } | |
122 | ||
123 | /* ----------------------------------------------------------------------- */ | |
124 | ||
125 | static const unsigned char init_common[] = { | |
126 | 0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1, | |
127 | * YUV2C=1, MY2C=1, MUV2C=1 */ | |
128 | ||
129 | 0x42, 0x6b, /* OVLY0=107 */ | |
130 | 0x43, 0x00, /* OVLU0=0 white */ | |
131 | 0x44, 0x00, /* OVLV0=0 */ | |
132 | 0x45, 0x22, /* OVLY1=34 */ | |
133 | 0x46, 0xac, /* OVLU1=172 yellow */ | |
134 | 0x47, 0x0e, /* OVLV1=14 */ | |
135 | 0x48, 0x03, /* OVLY2=3 */ | |
136 | 0x49, 0x1d, /* OVLU2=29 cyan */ | |
137 | 0x4a, 0xac, /* OVLV2=172 */ | |
138 | 0x4b, 0xf0, /* OVLY3=240 */ | |
139 | 0x4c, 0xc8, /* OVLU3=200 green */ | |
140 | 0x4d, 0xb9, /* OVLV3=185 */ | |
141 | 0x4e, 0xd4, /* OVLY4=212 */ | |
142 | 0x4f, 0x38, /* OVLU4=56 magenta */ | |
143 | 0x50, 0x47, /* OVLV4=71 */ | |
144 | 0x51, 0xc1, /* OVLY5=193 */ | |
145 | 0x52, 0xe3, /* OVLU5=227 red */ | |
146 | 0x53, 0x54, /* OVLV5=84 */ | |
147 | 0x54, 0xa3, /* OVLY6=163 */ | |
148 | 0x55, 0x54, /* OVLU6=84 blue */ | |
149 | 0x56, 0xf2, /* OVLV6=242 */ | |
150 | 0x57, 0x90, /* OVLY7=144 */ | |
151 | 0x58, 0x00, /* OVLU7=0 black */ | |
152 | 0x59, 0x00, /* OVLV7=0 */ | |
153 | ||
154 | 0x5a, 0x00, /* CHPS=0 */ | |
155 | 0x5b, 0x76, /* GAINU=118 */ | |
156 | 0x5c, 0xa5, /* GAINV=165 */ | |
157 | 0x5d, 0x3c, /* BLCKL=60 */ | |
158 | 0x5e, 0x3a, /* BLNNL=58 */ | |
159 | 0x5f, 0x3a, /* CCRS=0, BLNVB=58 */ | |
160 | 0x60, 0x00, /* NULL */ | |
161 | ||
162 | /* 0x61 - 0x66 set according to norm */ | |
163 | ||
164 | 0x67, 0x00, /* 0 : caption 1st byte odd field */ | |
165 | 0x68, 0x00, /* 0 : caption 2nd byte odd field */ | |
166 | 0x69, 0x00, /* 0 : caption 1st byte even field */ | |
167 | 0x6a, 0x00, /* 0 : caption 2nd byte even field */ | |
168 | ||
169 | 0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */ | |
170 | 0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0, | |
171 | * CBLF=0, ORCV2=0, PRCV2=0 */ | |
172 | 0x6d, 0x00, /* SRCM1=0, CCEN=0 */ | |
173 | ||
174 | 0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at | |
175 | * least for PAL */ | |
176 | 0x6f, 0x00, /* HTRIG upper bits */ | |
177 | 0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */ | |
178 | ||
179 | /* The following should not be needed */ | |
180 | ||
181 | 0x71, 0x15, /* BMRQ=0x115 */ | |
182 | 0x72, 0x90, /* EMRQ=0x690 */ | |
183 | 0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */ | |
184 | 0x74, 0x00, /* NULL */ | |
185 | 0x75, 0x00, /* NULL */ | |
186 | 0x76, 0x00, /* NULL */ | |
187 | 0x77, 0x15, /* BRCV=0x115 */ | |
188 | 0x78, 0x90, /* ERCV=0x690 */ | |
189 | 0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */ | |
190 | ||
191 | /* Field length controls */ | |
192 | ||
193 | 0x7a, 0x70, /* FLC=0 */ | |
194 | ||
195 | /* The following should not be needed if SBLN = 1 */ | |
196 | ||
197 | 0x7b, 0x16, /* FAL=22 */ | |
198 | 0x7c, 0x35, /* LAL=244 */ | |
199 | 0x7d, 0x20, /* LAL=244, FAL=22 */ | |
200 | }; | |
201 | ||
202 | static const unsigned char init_pal[] = { | |
203 | 0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1, | |
204 | * YGS=1, INPI=0, DOWN=0 */ | |
205 | 0x62, 0xc8, /* DECTYP=1, BSTA=72 */ | |
206 | 0x63, 0xcb, /* FSC0 */ | |
207 | 0x64, 0x8a, /* FSC1 */ | |
208 | 0x65, 0x09, /* FSC2 */ | |
209 | 0x66, 0x2a, /* FSC3 */ | |
210 | }; | |
211 | ||
212 | static const unsigned char init_ntsc[] = { | |
213 | 0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1, | |
214 | * YGS=1, INPI=0, DOWN=0 */ | |
215 | 0x62, 0xe6, /* DECTYP=1, BSTA=102 */ | |
216 | 0x63, 0x1f, /* FSC0 */ | |
217 | 0x64, 0x7c, /* FSC1 */ | |
218 | 0x65, 0xf0, /* FSC2 */ | |
219 | 0x66, 0x21, /* FSC3 */ | |
220 | }; | |
221 | ||
780d8e15 HV |
222 | |
223 | static int saa7185_init(struct v4l2_subdev *sd, u32 val) | |
224 | { | |
225 | struct saa7185 *encoder = to_saa7185(sd); | |
226 | ||
227 | saa7185_write_block(sd, init_common, sizeof(init_common)); | |
228 | if (encoder->norm & V4L2_STD_NTSC) | |
229 | saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); | |
230 | else | |
231 | saa7185_write_block(sd, init_pal, sizeof(init_pal)); | |
232 | return 0; | |
233 | } | |
234 | ||
235 | static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std) | |
236 | { | |
237 | struct saa7185 *encoder = to_saa7185(sd); | |
238 | ||
239 | if (std & V4L2_STD_NTSC) | |
240 | saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); | |
241 | else if (std & V4L2_STD_PAL) | |
242 | saa7185_write_block(sd, init_pal, sizeof(init_pal)); | |
243 | else | |
244 | return -EINVAL; | |
245 | encoder->norm = std; | |
246 | return 0; | |
247 | } | |
248 | ||
5325b427 HV |
249 | static int saa7185_s_routing(struct v4l2_subdev *sd, |
250 | u32 input, u32 output, u32 config) | |
1da177e4 | 251 | { |
780d8e15 HV |
252 | struct saa7185 *encoder = to_saa7185(sd); |
253 | ||
5325b427 HV |
254 | /* RJ: input = 0: input is from SA7111 |
255 | input = 1: input is from ZR36060 */ | |
780d8e15 | 256 | |
5325b427 | 257 | switch (input) { |
780d8e15 HV |
258 | case 0: |
259 | /* turn off colorbar */ | |
260 | saa7185_write(sd, 0x3a, 0x0f); | |
261 | /* Switch RTCE to 1 */ | |
262 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); | |
263 | saa7185_write(sd, 0x6e, 0x01); | |
1da177e4 LT |
264 | break; |
265 | ||
780d8e15 HV |
266 | case 1: |
267 | /* turn off colorbar */ | |
268 | saa7185_write(sd, 0x3a, 0x0f); | |
269 | /* Switch RTCE to 0 */ | |
270 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00); | |
271 | /* SW: a slight sync problem... */ | |
272 | saa7185_write(sd, 0x6e, 0x00); | |
1da177e4 LT |
273 | break; |
274 | ||
780d8e15 HV |
275 | case 2: |
276 | /* turn on colorbar */ | |
277 | saa7185_write(sd, 0x3a, 0x8f); | |
278 | /* Switch RTCE to 0 */ | |
279 | saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08); | |
280 | /* SW: a slight sync problem... */ | |
281 | saa7185_write(sd, 0x6e, 0x01); | |
1da177e4 LT |
282 | break; |
283 | ||
1da177e4 LT |
284 | default: |
285 | return -EINVAL; | |
286 | } | |
1da177e4 LT |
287 | return 0; |
288 | } | |
289 | ||
780d8e15 HV |
290 | static int saa7185_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) |
291 | { | |
292 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
293 | ||
294 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7185, 0); | |
295 | } | |
296 | ||
1da177e4 LT |
297 | /* ----------------------------------------------------------------------- */ |
298 | ||
780d8e15 HV |
299 | static const struct v4l2_subdev_core_ops saa7185_core_ops = { |
300 | .g_chip_ident = saa7185_g_chip_ident, | |
301 | .init = saa7185_init, | |
302 | }; | |
1da177e4 | 303 | |
780d8e15 HV |
304 | static const struct v4l2_subdev_video_ops saa7185_video_ops = { |
305 | .s_std_output = saa7185_s_std_output, | |
306 | .s_routing = saa7185_s_routing, | |
307 | }; | |
308 | ||
309 | static const struct v4l2_subdev_ops saa7185_ops = { | |
310 | .core = &saa7185_core_ops, | |
311 | .video = &saa7185_video_ops, | |
312 | }; | |
313 | ||
314 | ||
315 | /* ----------------------------------------------------------------------- */ | |
d56410e0 | 316 | |
0afb351e HV |
317 | static int saa7185_probe(struct i2c_client *client, |
318 | const struct i2c_device_id *id) | |
1da177e4 LT |
319 | { |
320 | int i; | |
1da177e4 | 321 | struct saa7185 *encoder; |
780d8e15 | 322 | struct v4l2_subdev *sd; |
1da177e4 | 323 | |
1da177e4 | 324 | /* Check if the adapter supports the needed features */ |
0afb351e HV |
325 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
326 | return -ENODEV; | |
1da177e4 | 327 | |
0afb351e HV |
328 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
329 | client->addr << 1, client->adapter->name); | |
1da177e4 | 330 | |
7408187d | 331 | encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL); |
0afb351e | 332 | if (encoder == NULL) |
1da177e4 | 333 | return -ENOMEM; |
107063c6 | 334 | encoder->norm = V4L2_STD_NTSC; |
780d8e15 HV |
335 | sd = &encoder->sd; |
336 | v4l2_i2c_subdev_init(sd, client, &saa7185_ops); | |
1da177e4 | 337 | |
780d8e15 | 338 | i = saa7185_write_block(sd, init_common, sizeof(init_common)); |
0afb351e | 339 | if (i >= 0) |
780d8e15 | 340 | i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc)); |
0afb351e | 341 | if (i < 0) |
780d8e15 | 342 | v4l2_dbg(1, debug, sd, "init error %d\n", i); |
0afb351e | 343 | else |
780d8e15 HV |
344 | v4l2_dbg(1, debug, sd, "revision 0x%x\n", |
345 | saa7185_read(sd) >> 5); | |
1da177e4 LT |
346 | return 0; |
347 | } | |
348 | ||
0afb351e | 349 | static int saa7185_remove(struct i2c_client *client) |
1da177e4 | 350 | { |
780d8e15 HV |
351 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
352 | struct saa7185 *encoder = to_saa7185(sd); | |
1da177e4 | 353 | |
780d8e15 HV |
354 | v4l2_device_unregister_subdev(sd); |
355 | /* SW: output off is active */ | |
356 | saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40); | |
1da177e4 | 357 | kfree(encoder); |
1da177e4 LT |
358 | return 0; |
359 | } | |
360 | ||
361 | /* ----------------------------------------------------------------------- */ | |
362 | ||
0afb351e HV |
363 | static const struct i2c_device_id saa7185_id[] = { |
364 | { "saa7185", 0 }, | |
365 | { } | |
366 | }; | |
367 | MODULE_DEVICE_TABLE(i2c, saa7185_id); | |
1da177e4 | 368 | |
0afb351e HV |
369 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { |
370 | .name = "saa7185", | |
0afb351e HV |
371 | .probe = saa7185_probe, |
372 | .remove = saa7185_remove, | |
373 | .id_table = saa7185_id, | |
1da177e4 | 374 | }; |