V4L/DVB (10715): zoran: clean up some old V4L1 left-overs and remove the MAP_NR macro.
[linux-2.6] / drivers / media / video / saa7185.c
1 /*
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>
28 #include <linux/types.h>
29 #include <linux/ioctl.h>
30 #include <asm/uaccess.h>
31 #include <linux/i2c.h>
32 #include <linux/i2c-id.h>
33 #include <linux/videodev.h>
34 #include <linux/video_encoder.h>
35 #include <media/v4l2-common.h>
36 #include <media/v4l2-i2c-drv-legacy.h>
37
38 MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
39 MODULE_AUTHOR("Dave Perks");
40 MODULE_LICENSE("GPL");
41
42
43 static int debug;
44 module_param(debug, int, 0);
45 MODULE_PARM_DESC(debug, "Debug level (0-1)");
46
47 /* ----------------------------------------------------------------------- */
48
49 struct saa7185 {
50         unsigned char reg[128];
51
52         v4l2_std_id norm;
53         int bright;
54         int contrast;
55         int hue;
56         int sat;
57 };
58
59 /* ----------------------------------------------------------------------- */
60
61 static inline int saa7185_read(struct i2c_client *client)
62 {
63         return i2c_smbus_read_byte(client);
64 }
65
66 static int saa7185_write(struct i2c_client *client, u8 reg, u8 value)
67 {
68         struct saa7185 *encoder = i2c_get_clientdata(client);
69
70         v4l_dbg(1, debug, client, "%02x set to %02x\n", reg, value);
71         encoder->reg[reg] = value;
72         return i2c_smbus_write_byte_data(client, reg, value);
73 }
74
75 static int saa7185_write_block(struct i2c_client *client,
76                 const u8 *data, unsigned int len)
77 {
78         int ret = -1;
79         u8 reg;
80
81         /* the adv7175 has an autoincrement function, use it if
82          * the adapter understands raw I2C */
83         if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
84                 /* do raw I2C, not smbus compatible */
85                 struct saa7185 *encoder = i2c_get_clientdata(client);
86                 u8 block_data[32];
87                 int block_len;
88
89                 while (len >= 2) {
90                         block_len = 0;
91                         block_data[block_len++] = reg = data[0];
92                         do {
93                                 block_data[block_len++] =
94                                     encoder->reg[reg++] = data[1];
95                                 len -= 2;
96                                 data += 2;
97                         } while (len >= 2 && data[0] == reg && block_len < 32);
98                         ret = i2c_master_send(client, block_data, block_len);
99                         if (ret < 0)
100                                 break;
101                 }
102         } else {
103                 /* do some slow I2C emulation kind of thing */
104                 while (len >= 2) {
105                         reg = *data++;
106                         ret = saa7185_write(client, reg, *data++);
107                         if (ret < 0)
108                                 break;
109                         len -= 2;
110                 }
111         }
112
113         return ret;
114 }
115
116 /* ----------------------------------------------------------------------- */
117
118 static const unsigned char init_common[] = {
119         0x3a, 0x0f,             /* CBENB=0, V656=0, VY2C=1,
120                                  * YUV2C=1, MY2C=1, MUV2C=1 */
121
122         0x42, 0x6b,             /* OVLY0=107 */
123         0x43, 0x00,             /* OVLU0=0     white */
124         0x44, 0x00,             /* OVLV0=0   */
125         0x45, 0x22,             /* OVLY1=34  */
126         0x46, 0xac,             /* OVLU1=172   yellow */
127         0x47, 0x0e,             /* OVLV1=14  */
128         0x48, 0x03,             /* OVLY2=3   */
129         0x49, 0x1d,             /* OVLU2=29    cyan */
130         0x4a, 0xac,             /* OVLV2=172 */
131         0x4b, 0xf0,             /* OVLY3=240 */
132         0x4c, 0xc8,             /* OVLU3=200   green */
133         0x4d, 0xb9,             /* OVLV3=185 */
134         0x4e, 0xd4,             /* OVLY4=212 */
135         0x4f, 0x38,             /* OVLU4=56    magenta */
136         0x50, 0x47,             /* OVLV4=71  */
137         0x51, 0xc1,             /* OVLY5=193 */
138         0x52, 0xe3,             /* OVLU5=227   red */
139         0x53, 0x54,             /* OVLV5=84  */
140         0x54, 0xa3,             /* OVLY6=163 */
141         0x55, 0x54,             /* OVLU6=84    blue */
142         0x56, 0xf2,             /* OVLV6=242 */
143         0x57, 0x90,             /* OVLY7=144 */
144         0x58, 0x00,             /* OVLU7=0     black */
145         0x59, 0x00,             /* OVLV7=0   */
146
147         0x5a, 0x00,             /* CHPS=0    */
148         0x5b, 0x76,             /* GAINU=118 */
149         0x5c, 0xa5,             /* GAINV=165 */
150         0x5d, 0x3c,             /* BLCKL=60  */
151         0x5e, 0x3a,             /* BLNNL=58  */
152         0x5f, 0x3a,             /* CCRS=0, BLNVB=58 */
153         0x60, 0x00,             /* NULL      */
154
155         /* 0x61 - 0x66 set according to norm */
156
157         0x67, 0x00,             /* 0 : caption 1st byte odd  field */
158         0x68, 0x00,             /* 0 : caption 2nd byte odd  field */
159         0x69, 0x00,             /* 0 : caption 1st byte even field */
160         0x6a, 0x00,             /* 0 : caption 2nd byte even field */
161
162         0x6b, 0x91,             /* MODIN=2, PCREF=0, SCCLN=17 */
163         0x6c, 0x20,             /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0,
164                                  * CBLF=0, ORCV2=0, PRCV2=0 */
165         0x6d, 0x00,             /* SRCM1=0, CCEN=0 */
166
167         0x6e, 0x0e,             /* HTRIG=0x005, approx. centered, at
168                                  * least for PAL */
169         0x6f, 0x00,             /* HTRIG upper bits */
170         0x70, 0x20,             /* PHRES=0, SBLN=1, VTRIG=0 */
171
172         /* The following should not be needed */
173
174         0x71, 0x15,             /* BMRQ=0x115 */
175         0x72, 0x90,             /* EMRQ=0x690 */
176         0x73, 0x61,             /* EMRQ=0x690, BMRQ=0x115 */
177         0x74, 0x00,             /* NULL       */
178         0x75, 0x00,             /* NULL       */
179         0x76, 0x00,             /* NULL       */
180         0x77, 0x15,             /* BRCV=0x115 */
181         0x78, 0x90,             /* ERCV=0x690 */
182         0x79, 0x61,             /* ERCV=0x690, BRCV=0x115 */
183
184         /* Field length controls */
185
186         0x7a, 0x70,             /* FLC=0 */
187
188         /* The following should not be needed if SBLN = 1 */
189
190         0x7b, 0x16,             /* FAL=22 */
191         0x7c, 0x35,             /* LAL=244 */
192         0x7d, 0x20,             /* LAL=244, FAL=22 */
193 };
194
195 static const unsigned char init_pal[] = {
196         0x61, 0x1e,             /* FISE=0, PAL=1, SCBW=1, RTCE=1,
197                                  * YGS=1, INPI=0, DOWN=0 */
198         0x62, 0xc8,             /* DECTYP=1, BSTA=72 */
199         0x63, 0xcb,             /* FSC0 */
200         0x64, 0x8a,             /* FSC1 */
201         0x65, 0x09,             /* FSC2 */
202         0x66, 0x2a,             /* FSC3 */
203 };
204
205 static const unsigned char init_ntsc[] = {
206         0x61, 0x1d,             /* FISE=1, PAL=0, SCBW=1, RTCE=1,
207                                  * YGS=1, INPI=0, DOWN=0 */
208         0x62, 0xe6,             /* DECTYP=1, BSTA=102 */
209         0x63, 0x1f,             /* FSC0 */
210         0x64, 0x7c,             /* FSC1 */
211         0x65, 0xf0,             /* FSC2 */
212         0x66, 0x21,             /* FSC3 */
213 };
214
215 static int saa7185_command(struct i2c_client *client, unsigned cmd, void *arg)
216 {
217         struct saa7185 *encoder = i2c_get_clientdata(client);
218
219         switch (cmd) {
220         case VIDIOC_INT_INIT:
221                 saa7185_write_block(client, init_common,
222                                     sizeof(init_common));
223                 if (encoder->norm & V4L2_STD_NTSC)
224                         saa7185_write_block(client, init_ntsc,
225                                             sizeof(init_ntsc));
226                 else
227                         saa7185_write_block(client, init_pal,
228                                             sizeof(init_pal));
229                 break;
230
231         case VIDIOC_INT_S_STD_OUTPUT:
232         {
233                 v4l2_std_id *iarg = arg;
234
235                 //saa7185_write_block(client, init_common, sizeof(init_common));
236
237                 if (*iarg & V4L2_STD_NTSC)
238                         saa7185_write_block(client, init_ntsc,
239                                             sizeof(init_ntsc));
240                 else if (*iarg & V4L2_STD_PAL)
241                         saa7185_write_block(client, init_pal,
242                                             sizeof(init_pal));
243                 else
244                         return -EINVAL;
245                 encoder->norm = *iarg;
246                 break;
247         }
248
249         case VIDIOC_INT_S_VIDEO_ROUTING:
250         {
251                 struct v4l2_routing *route = arg;
252
253                 /* RJ: route->input = 0: input is from SA7111
254                  route->input = 1: input is from ZR36060 */
255
256                 switch (route->input) {
257                 case 0:
258                         /* turn off colorbar */
259                         saa7185_write(client, 0x3a, 0x0f);
260                         /* Switch RTCE to 1 */
261                         saa7185_write(client, 0x61,
262                                       (encoder->reg[0x61] & 0xf7) | 0x08);
263                         saa7185_write(client, 0x6e, 0x01);
264                         break;
265
266                 case 1:
267                         /* turn off colorbar */
268                         saa7185_write(client, 0x3a, 0x0f);
269                         /* Switch RTCE to 0 */
270                         saa7185_write(client, 0x61,
271                                       (encoder->reg[0x61] & 0xf7) | 0x00);
272                         /* SW: a slight sync problem... */
273                         saa7185_write(client, 0x6e, 0x00);
274                         break;
275
276                 case 2:
277                         /* turn on colorbar */
278                         saa7185_write(client, 0x3a, 0x8f);
279                         /* Switch RTCE to 0 */
280                         saa7185_write(client, 0x61,
281                                       (encoder->reg[0x61] & 0xf7) | 0x08);
282                         /* SW: a slight sync problem... */
283                         saa7185_write(client, 0x6e, 0x01);
284                         break;
285
286                 default:
287                         return -EINVAL;
288                 }
289                 break;
290         }
291
292         default:
293                 return -EINVAL;
294         }
295
296         return 0;
297 }
298
299 /* ----------------------------------------------------------------------- */
300
301 static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
302
303 I2C_CLIENT_INSMOD;
304
305 static int saa7185_probe(struct i2c_client *client,
306                         const struct i2c_device_id *id)
307 {
308         int i;
309         struct saa7185 *encoder;
310
311         /* Check if the adapter supports the needed features */
312         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
313                 return -ENODEV;
314
315         v4l_info(client, "chip found @ 0x%x (%s)\n",
316                         client->addr << 1, client->adapter->name);
317
318         encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL);
319         if (encoder == NULL)
320                 return -ENOMEM;
321         encoder->norm = V4L2_STD_NTSC;
322         i2c_set_clientdata(client, encoder);
323
324         i = saa7185_write_block(client, init_common, sizeof(init_common));
325         if (i >= 0)
326                 i = saa7185_write_block(client, init_ntsc, sizeof(init_ntsc));
327         if (i < 0)
328                 v4l_dbg(1, debug, client, "init error %d\n", i);
329         else
330                 v4l_dbg(1, debug, client, "revision 0x%x\n",
331                                 saa7185_read(client) >> 5);
332         return 0;
333 }
334
335 static int saa7185_remove(struct i2c_client *client)
336 {
337         struct saa7185 *encoder = i2c_get_clientdata(client);
338
339         saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40);       /* SW: output off is active */
340         //saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */
341
342         kfree(encoder);
343         return 0;
344 }
345
346 /* ----------------------------------------------------------------------- */
347
348 static const struct i2c_device_id saa7185_id[] = {
349         { "saa7185", 0 },
350         { }
351 };
352 MODULE_DEVICE_TABLE(i2c, saa7185_id);
353
354 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
355         .name = "saa7185",
356         .driverid = I2C_DRIVERID_SAA7185B,
357         .command = saa7185_command,
358         .probe = saa7185_probe,
359         .remove = saa7185_remove,
360         .id_table = saa7185_id,
361 };