blob: f56c1c88b27d6c0de3dc6536ed2191511ec87a57 [file] [log] [blame]
Mauro Carvalho Chehabd56410e2006-03-25 09:19:53 -03001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * 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>
Mauro Carvalho Chehab18f3fa12007-07-02 15:39:57 -030028#include <linux/types.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090029#include <linux/slab.h>
Hans Verkuil0afb3512008-09-07 08:01:20 -030030#include <linux/ioctl.h>
Mauro Carvalho Chehab18f3fa12007-07-02 15:39:57 -030031#include <asm/uaccess.h>
Hans Verkuil0afb3512008-09-07 08:01:20 -030032#include <linux/i2c.h>
Hans Verkuil780d8e12009-02-19 13:24:47 -030033#include <linux/videodev2.h>
34#include <media/v4l2-device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
36MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
37MODULE_AUTHOR("Dave Perks");
38MODULE_LICENSE("GPL");
39
Douglas Schilling Landgrafff699e62008-04-22 14:41:48 -030040static int debug;
Linus Torvalds1da177e2005-04-16 15:20:36 -070041module_param(debug, int, 0);
42MODULE_PARM_DESC(debug, "Debug level (0-1)");
43
Hans Verkuil780d8e12009-02-19 13:24:47 -030044
Linus Torvalds1da177e2005-04-16 15:20:36 -070045/* ----------------------------------------------------------------------- */
46
47struct saa7185 {
Hans Verkuil780d8e12009-02-19 13:24:47 -030048 struct v4l2_subdev sd;
Linus Torvalds1da177e2005-04-16 15:20:36 -070049 unsigned char reg[128];
50
Hans Verkuil107063c2009-02-18 17:26:06 -030051 v4l2_std_id norm;
Linus Torvalds1da177e2005-04-16 15:20:36 -070052};
53
Hans Verkuil780d8e12009-02-19 13:24:47 -030054static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd)
55{
56 return container_of(sd, struct saa7185, sd);
57}
58
Linus Torvalds1da177e2005-04-16 15:20:36 -070059/* ----------------------------------------------------------------------- */
60
Hans Verkuil780d8e12009-02-19 13:24:47 -030061static inline int saa7185_read(struct v4l2_subdev *sd)
Linus Torvalds1da177e2005-04-16 15:20:36 -070062{
Hans Verkuil780d8e12009-02-19 13:24:47 -030063 struct i2c_client *client = v4l2_get_subdevdata(sd);
64
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 return i2c_smbus_read_byte(client);
66}
67
Hans Verkuil780d8e12009-02-19 13:24:47 -030068static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value)
Linus Torvalds1da177e2005-04-16 15:20:36 -070069{
Hans Verkuil780d8e12009-02-19 13:24:47 -030070 struct i2c_client *client = v4l2_get_subdevdata(sd);
71 struct saa7185 *encoder = to_saa7185(sd);
Linus Torvalds1da177e2005-04-16 15:20:36 -070072
Hans Verkuil780d8e12009-02-19 13:24:47 -030073 v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value);
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 encoder->reg[reg] = value;
75 return i2c_smbus_write_byte_data(client, reg, value);
76}
77
Hans Verkuil780d8e12009-02-19 13:24:47 -030078static int saa7185_write_block(struct v4l2_subdev *sd,
Hans Verkuil0afb3512008-09-07 08:01:20 -030079 const u8 *data, unsigned int len)
Linus Torvalds1da177e2005-04-16 15:20:36 -070080{
Hans Verkuil780d8e12009-02-19 13:24:47 -030081 struct i2c_client *client = v4l2_get_subdevdata(sd);
82 struct saa7185 *encoder = to_saa7185(sd);
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 u8 block_data[32];
Jean Delvare9aa45e32006-03-22 03:48:35 -030091 int block_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -070092
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 while (len >= 2) {
Jean Delvare9aa45e32006-03-22 03:48:35 -030094 block_len = 0;
95 block_data[block_len++] = reg = data[0];
Linus Torvalds1da177e2005-04-16 15:20:36 -070096 do {
Jean Delvare9aa45e32006-03-22 03:48:35 -030097 block_data[block_len++] =
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 encoder->reg[reg++] = data[1];
99 len -= 2;
100 data += 2;
Hans Verkuil0afb3512008-09-07 08:01:20 -0300101 } while (len >= 2 && data[0] == reg && block_len < 32);
102 ret = i2c_master_send(client, block_data, block_len);
103 if (ret < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104 break;
105 }
106 } else {
107 /* do some slow I2C emulation kind of thing */
108 while (len >= 2) {
109 reg = *data++;
Hans Verkuil780d8e12009-02-19 13:24:47 -0300110 ret = saa7185_write(sd, reg, *data++);
Hans Verkuil0afb3512008-09-07 08:01:20 -0300111 if (ret < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 break;
113 len -= 2;
114 }
115 }
116
117 return ret;
118}
119
120/* ----------------------------------------------------------------------- */
121
122static 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
199static 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
209static 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
Hans Verkuil780d8e12009-02-19 13:24:47 -0300219
220static int saa7185_init(struct v4l2_subdev *sd, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221{
Hans Verkuil780d8e12009-02-19 13:24:47 -0300222 struct saa7185 *encoder = to_saa7185(sd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223
Hans Verkuil780d8e12009-02-19 13:24:47 -0300224 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
232static 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
Hans Verkuil5325b422009-04-02 11:26:22 -0300246static int saa7185_s_routing(struct v4l2_subdev *sd,
247 u32 input, u32 output, u32 config)
Hans Verkuil780d8e12009-02-19 13:24:47 -0300248{
249 struct saa7185 *encoder = to_saa7185(sd);
250
Hans Verkuil5325b422009-04-02 11:26:22 -0300251 /* RJ: input = 0: input is from SA7111
252 input = 1: input is from ZR36060 */
Hans Verkuil780d8e12009-02-19 13:24:47 -0300253
Hans Verkuil5325b422009-04-02 11:26:22 -0300254 switch (input) {
Hans Verkuil780d8e12009-02-19 13:24:47 -0300255 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 break;
262
Hans Verkuil780d8e12009-02-19 13:24:47 -0300263 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 break;
271
Hans Verkuil780d8e12009-02-19 13:24:47 -0300272 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 break;
280
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281 default:
282 return -EINVAL;
283 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 return 0;
285}
286
287/* ----------------------------------------------------------------------- */
288
Hans Verkuil780d8e12009-02-19 13:24:47 -0300289static const struct v4l2_subdev_core_ops saa7185_core_ops = {
Hans Verkuil780d8e12009-02-19 13:24:47 -0300290 .init = saa7185_init,
291};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
Hans Verkuil780d8e12009-02-19 13:24:47 -0300293static 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
298static const struct v4l2_subdev_ops saa7185_ops = {
299 .core = &saa7185_core_ops,
300 .video = &saa7185_video_ops,
301};
302
303
304/* ----------------------------------------------------------------------- */
Mauro Carvalho Chehabd56410e2006-03-25 09:19:53 -0300305
Hans Verkuil0afb3512008-09-07 08:01:20 -0300306static int saa7185_probe(struct i2c_client *client,
307 const struct i2c_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308{
309 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 struct saa7185 *encoder;
Hans Verkuil780d8e12009-02-19 13:24:47 -0300311 struct v4l2_subdev *sd;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 /* Check if the adapter supports the needed features */
Hans Verkuil0afb3512008-09-07 08:01:20 -0300314 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
315 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
Hans Verkuil0afb3512008-09-07 08:01:20 -0300317 v4l_info(client, "chip found @ 0x%x (%s)\n",
318 client->addr << 1, client->adapter->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319
Laurent Pinchartc02b2112013-05-02 08:29:43 -0300320 encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
Hans Verkuil0afb3512008-09-07 08:01:20 -0300321 if (encoder == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 return -ENOMEM;
Hans Verkuil107063c2009-02-18 17:26:06 -0300323 encoder->norm = V4L2_STD_NTSC;
Hans Verkuil780d8e12009-02-19 13:24:47 -0300324 sd = &encoder->sd;
325 v4l2_i2c_subdev_init(sd, client, &saa7185_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326
Hans Verkuil780d8e12009-02-19 13:24:47 -0300327 i = saa7185_write_block(sd, init_common, sizeof(init_common));
Hans Verkuil0afb3512008-09-07 08:01:20 -0300328 if (i >= 0)
Hans Verkuil780d8e12009-02-19 13:24:47 -0300329 i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
Hans Verkuil0afb3512008-09-07 08:01:20 -0300330 if (i < 0)
Hans Verkuil780d8e12009-02-19 13:24:47 -0300331 v4l2_dbg(1, debug, sd, "init error %d\n", i);
Hans Verkuil0afb3512008-09-07 08:01:20 -0300332 else
Hans Verkuil780d8e12009-02-19 13:24:47 -0300333 v4l2_dbg(1, debug, sd, "revision 0x%x\n",
334 saa7185_read(sd) >> 5);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 return 0;
336}
337
Hans Verkuil0afb3512008-09-07 08:01:20 -0300338static int saa7185_remove(struct i2c_client *client)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339{
Hans Verkuil780d8e12009-02-19 13:24:47 -0300340 struct v4l2_subdev *sd = i2c_get_clientdata(client);
341 struct saa7185 *encoder = to_saa7185(sd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
Hans Verkuil780d8e12009-02-19 13:24:47 -0300343 v4l2_device_unregister_subdev(sd);
344 /* SW: output off is active */
345 saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 return 0;
347}
348
349/* ----------------------------------------------------------------------- */
350
Hans Verkuil0afb3512008-09-07 08:01:20 -0300351static const struct i2c_device_id saa7185_id[] = {
352 { "saa7185", 0 },
353 { }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354};
Hans Verkuil0afb3512008-09-07 08:01:20 -0300355MODULE_DEVICE_TABLE(i2c, saa7185_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
Hans Verkuildfc5a012010-09-15 15:19:42 -0300357static 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,
Hans Verkuil0afb3512008-09-07 08:01:20 -0300365};
Hans Verkuildfc5a012010-09-15 15:19:42 -0300366
Axel Linc6e8d862012-02-12 06:56:32 -0300367module_i2c_driver(saa7185_driver);