2 * adv7170 - adv7170, adv7171 video encoder driver version 0.0.1
4 * Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
6 * Based on adv7176 driver by:
8 * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
9 * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
10 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
11 * - some corrections for Pinnacle Systems Inc. DC10plus card.
13 * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
14 * - moved over to linux>=2.4.x i2c protocol (1/1/2003)
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/delay.h>
34 #include <linux/errno.h>
36 #include <linux/kernel.h>
37 #include <linux/major.h>
38 #include <linux/slab.h>
40 #include <linux/pci.h>
41 #include <linux/signal.h>
43 #include <asm/pgtable.h>
45 #include <linux/sched.h>
46 #include <linux/types.h>
48 #include <linux/videodev.h>
49 #include <asm/uaccess.h>
51 MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
52 MODULE_AUTHOR("Maxim Yevtyushkin");
53 MODULE_LICENSE("GPL");
55 #include <linux/i2c.h>
57 #define I2C_NAME(x) (x)->name
59 #include <linux/video_encoder.h>
62 module_param(debug, int, 0);
63 MODULE_PARM_DESC(debug, "Debug level (0-1)");
65 #define dprintk(num, format, args...) \
68 printk(format, ##args); \
71 /* ----------------------------------------------------------------------- */
74 unsigned char reg[128];
85 #define I2C_ADV7170 0xd4
86 #define I2C_ADV7171 0x54
88 static char adv7170_name[] = "adv7170";
89 static char adv7171_name[] = "adv7171";
91 static char *inputs[] = { "pass_through", "play_back" };
92 static char *norms[] = { "PAL", "NTSC" };
94 /* ----------------------------------------------------------------------- */
97 adv7170_write (struct i2c_client *client,
101 struct adv7170 *encoder = i2c_get_clientdata(client);
103 encoder->reg[reg] = value;
104 return i2c_smbus_write_byte_data(client, reg, value);
108 adv7170_read (struct i2c_client *client,
111 return i2c_smbus_read_byte_data(client, reg);
115 adv7170_write_block (struct i2c_client *client,
122 /* the adv7170 has an autoincrement function, use it if
123 * the adapter understands raw I2C */
124 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
125 /* do raw I2C, not smbus compatible */
126 struct adv7170 *encoder = i2c_get_clientdata(client);
130 msg.addr = client->addr;
133 msg.buf = (char *) block_data;
135 block_data[msg.len++] = reg = data[0];
137 block_data[msg.len++] =
138 encoder->reg[reg++] = data[1];
141 } while (len >= 2 && data[0] == reg &&
143 if ((ret = i2c_transfer(client->adapter,
148 /* do some slow I2C emulation kind of thing */
151 if ((ret = adv7170_write(client, reg,
161 /* ----------------------------------------------------------------------- */
162 // Output filter: S-Video Composite
164 #define MR050 0x11 //0x09
165 #define MR060 0x14 //0x0c
167 //---------------------------------------------------------------------------
176 static const unsigned char init_NTSC[] = {
179 0x02, 0x0e, // MR2 RTC control: bits 2 and 1
182 0x05, 0x00, // Reserved
183 0x06, 0x00, // Reserved
184 0x07, TR0MODE, // TM0
185 0x08, TR1CAPT, // TM1
190 0x0d, 0x00, // Subcarrier Phase
191 0x0e, 0x00, // Closed Capt. Ext 0
192 0x0f, 0x00, // Closed Capt. Ext 1
193 0x10, 0x00, // Closed Capt. 0
194 0x11, 0x00, // Closed Capt. 1
195 0x12, 0x00, // Pedestal Ctl 0
196 0x13, 0x00, // Pedestal Ctl 1
197 0x14, 0x00, // Pedestal Ctl 2
198 0x15, 0x00, // Pedestal Ctl 3
199 0x16, 0x00, // CGMS_WSS_0
200 0x17, 0x00, // CGMS_WSS_1
201 0x18, 0x00, // CGMS_WSS_2
202 0x19, 0x00, // Teletext Ctl
205 static const unsigned char init_PAL[] = {
208 0x02, 0x0e, // MR2 RTC control: bits 2 and 1
211 0x05, 0x00, // Reserved
212 0x06, 0x00, // Reserved
213 0x07, TR0MODE, // TM0
214 0x08, TR1CAPT, // TM1
219 0x0d, 0x00, // Subcarrier Phase
220 0x0e, 0x00, // Closed Capt. Ext 0
221 0x0f, 0x00, // Closed Capt. Ext 1
222 0x10, 0x00, // Closed Capt. 0
223 0x11, 0x00, // Closed Capt. 1
224 0x12, 0x00, // Pedestal Ctl 0
225 0x13, 0x00, // Pedestal Ctl 1
226 0x14, 0x00, // Pedestal Ctl 2
227 0x15, 0x00, // Pedestal Ctl 3
228 0x16, 0x00, // CGMS_WSS_0
229 0x17, 0x00, // CGMS_WSS_1
230 0x18, 0x00, // CGMS_WSS_2
231 0x19, 0x00, // Teletext Ctl
236 adv7170_command (struct i2c_client *client,
240 struct adv7170 *encoder = i2c_get_clientdata(client);
246 /* This is just for testing!!! */
247 adv7170_write_block(client, init_common,
248 sizeof(init_common));
249 adv7170_write(client, 0x07, TR0MODE | TR0RST);
250 adv7170_write(client, 0x07, TR0MODE);
254 case ENCODER_GET_CAPABILITIES:
256 struct video_encoder_capability *cap = arg;
258 cap->flags = VIDEO_ENCODER_PAL |
265 case ENCODER_SET_NORM:
267 int iarg = *(int *) arg;
269 dprintk(1, KERN_DEBUG "%s_command: set norm %d",
270 I2C_NAME(client), iarg);
274 case VIDEO_MODE_NTSC:
275 adv7170_write_block(client, init_NTSC,
277 if (encoder->input == 0)
278 adv7170_write(client, 0x02, 0x0e); // Enable genlock
279 adv7170_write(client, 0x07, TR0MODE | TR0RST);
280 adv7170_write(client, 0x07, TR0MODE);
284 adv7170_write_block(client, init_PAL,
286 if (encoder->input == 0)
287 adv7170_write(client, 0x02, 0x0e); // Enable genlock
288 adv7170_write(client, 0x07, TR0MODE | TR0RST);
289 adv7170_write(client, 0x07, TR0MODE);
293 dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
294 I2C_NAME(client), iarg);
298 dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
300 encoder->norm = iarg;
304 case ENCODER_SET_INPUT:
306 int iarg = *(int *) arg;
308 /* RJ: *iarg = 0: input is from decoder
309 *iarg = 1: input is from ZR36060
310 *iarg = 2: color bar */
312 dprintk(1, KERN_DEBUG "%s_command: set input from %s\n",
314 iarg == 0 ? "decoder" : "ZR36060");
319 adv7170_write(client, 0x01, 0x20);
320 adv7170_write(client, 0x08, TR1CAPT); /* TR1 */
321 adv7170_write(client, 0x02, 0x0e); // Enable genlock
322 adv7170_write(client, 0x07, TR0MODE | TR0RST);
323 adv7170_write(client, 0x07, TR0MODE);
328 adv7170_write(client, 0x01, 0x00);
329 adv7170_write(client, 0x08, TR1PLAY); /* TR1 */
330 adv7170_write(client, 0x02, 0x08);
331 adv7170_write(client, 0x07, TR0MODE | TR0RST);
332 adv7170_write(client, 0x07, TR0MODE);
337 dprintk(1, KERN_ERR "%s: illegal input: %d\n",
338 I2C_NAME(client), iarg);
342 dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
344 encoder->input = iarg;
348 case ENCODER_SET_OUTPUT:
352 /* not much choice of outputs */
359 case ENCODER_ENABLE_OUTPUT:
363 encoder->enable = !!*iarg;
374 /* ----------------------------------------------------------------------- */
378 * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
380 static unsigned short normal_i2c[] =
381 { I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1,
382 I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1,
386 static unsigned short ignore = I2C_CLIENT_END;
388 static struct i2c_client_address_data addr_data = {
389 .normal_i2c = normal_i2c,
394 static struct i2c_driver i2c_driver_adv7170;
397 adv7170_detect_client (struct i2c_adapter *adapter,
402 struct i2c_client *client;
403 struct adv7170 *encoder;
408 "adv7170.c: detecting adv7170 client on address 0x%x\n",
411 /* Check if the adapter supports the needed features */
412 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
415 client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
418 client->addr = address;
419 client->adapter = adapter;
420 client->driver = &i2c_driver_adv7170;
421 if ((client->addr == I2C_ADV7170 >> 1) ||
422 (client->addr == (I2C_ADV7170 >> 1) + 1)) {
423 dname = adv7170_name;
424 } else if ((client->addr == I2C_ADV7171 >> 1) ||
425 (client->addr == (I2C_ADV7171 >> 1) + 1)) {
426 dname = adv7171_name;
428 /* We should never get here!!! */
432 strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));
434 encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL);
435 if (encoder == NULL) {
439 encoder->norm = VIDEO_MODE_NTSC;
442 i2c_set_clientdata(client, encoder);
444 i = i2c_attach_client(client);
451 i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
453 i = adv7170_write(client, 0x07, TR0MODE | TR0RST);
454 i = adv7170_write(client, 0x07, TR0MODE);
455 i = adv7170_read(client, 0x12);
456 dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n",
457 I2C_NAME(client), i & 1, client->addr << 1);
460 dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
461 I2C_NAME(client), i);
468 adv7170_attach_adapter (struct i2c_adapter *adapter)
472 "adv7170.c: starting probe for adapter %s (0x%x)\n",
473 I2C_NAME(adapter), adapter->id);
474 return i2c_probe(adapter, &addr_data, &adv7170_detect_client);
478 adv7170_detach_client (struct i2c_client *client)
480 struct adv7170 *encoder = i2c_get_clientdata(client);
483 err = i2c_detach_client(client);
494 /* ----------------------------------------------------------------------- */
496 static struct i2c_driver i2c_driver_adv7170 = {
498 .name = "adv7170", /* name */
501 .id = I2C_DRIVERID_ADV7170,
503 .attach_adapter = adv7170_attach_adapter,
504 .detach_client = adv7170_detach_client,
505 .command = adv7170_command,
511 return i2c_add_driver(&i2c_driver_adv7170);
517 i2c_del_driver(&i2c_driver_adv7170);
520 module_init(adv7170_init);
521 module_exit(adv7170_exit);