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 <asm/segment.h>
47 #include <linux/types.h>
49 #include <linux/videodev.h>
50 #include <asm/uaccess.h>
52 MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
53 MODULE_AUTHOR("Maxim Yevtyushkin");
54 MODULE_LICENSE("GPL");
56 #include <linux/i2c.h>
57 #include <linux/i2c-dev.h>
59 #define I2C_NAME(x) (x)->name
61 #include <linux/video_encoder.h>
64 module_param(debug, int, 0);
65 MODULE_PARM_DESC(debug, "Debug level (0-1)");
67 #define dprintk(num, format, args...) \
70 printk(format, ##args); \
73 /* ----------------------------------------------------------------------- */
76 unsigned char reg[128];
87 #define I2C_ADV7170 0xd4
88 #define I2C_ADV7171 0x54
90 static char adv7170_name[] = "adv7170";
91 static char adv7171_name[] = "adv7171";
93 static char *inputs[] = { "pass_through", "play_back" };
94 static char *norms[] = { "PAL", "NTSC" };
96 /* ----------------------------------------------------------------------- */
99 adv7170_write (struct i2c_client *client,
103 struct adv7170 *encoder = i2c_get_clientdata(client);
105 encoder->reg[reg] = value;
106 return i2c_smbus_write_byte_data(client, reg, value);
110 adv7170_read (struct i2c_client *client,
113 return i2c_smbus_read_byte_data(client, reg);
117 adv7170_write_block (struct i2c_client *client,
124 /* the adv7170 has an autoincrement function, use it if
125 * the adapter understands raw I2C */
126 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
127 /* do raw I2C, not smbus compatible */
128 struct adv7170 *encoder = i2c_get_clientdata(client);
132 msg.addr = client->addr;
135 msg.buf = (char *) block_data;
137 block_data[msg.len++] = reg = data[0];
139 block_data[msg.len++] =
140 encoder->reg[reg++] = data[1];
143 } while (len >= 2 && data[0] == reg &&
145 if ((ret = i2c_transfer(client->adapter,
150 /* do some slow I2C emulation kind of thing */
153 if ((ret = adv7170_write(client, reg,
163 /* ----------------------------------------------------------------------- */
164 // Output filter: S-Video Composite
166 #define MR050 0x11 //0x09
167 #define MR060 0x14 //0x0c
169 //---------------------------------------------------------------------------
178 static const unsigned char init_NTSC[] = {
181 0x02, 0x0e, // MR2 RTC control: bits 2 and 1
184 0x05, 0x00, // Reserved
185 0x06, 0x00, // Reserved
186 0x07, TR0MODE, // TM0
187 0x08, TR1CAPT, // TM1
192 0x0d, 0x00, // Subcarrier Phase
193 0x0e, 0x00, // Closed Capt. Ext 0
194 0x0f, 0x00, // Closed Capt. Ext 1
195 0x10, 0x00, // Closed Capt. 0
196 0x11, 0x00, // Closed Capt. 1
197 0x12, 0x00, // Pedestal Ctl 0
198 0x13, 0x00, // Pedestal Ctl 1
199 0x14, 0x00, // Pedestal Ctl 2
200 0x15, 0x00, // Pedestal Ctl 3
201 0x16, 0x00, // CGMS_WSS_0
202 0x17, 0x00, // CGMS_WSS_1
203 0x18, 0x00, // CGMS_WSS_2
204 0x19, 0x00, // Teletext Ctl
207 static const unsigned char init_PAL[] = {
210 0x02, 0x0e, // MR2 RTC control: bits 2 and 1
213 0x05, 0x00, // Reserved
214 0x06, 0x00, // Reserved
215 0x07, TR0MODE, // TM0
216 0x08, TR1CAPT, // TM1
221 0x0d, 0x00, // Subcarrier Phase
222 0x0e, 0x00, // Closed Capt. Ext 0
223 0x0f, 0x00, // Closed Capt. Ext 1
224 0x10, 0x00, // Closed Capt. 0
225 0x11, 0x00, // Closed Capt. 1
226 0x12, 0x00, // Pedestal Ctl 0
227 0x13, 0x00, // Pedestal Ctl 1
228 0x14, 0x00, // Pedestal Ctl 2
229 0x15, 0x00, // Pedestal Ctl 3
230 0x16, 0x00, // CGMS_WSS_0
231 0x17, 0x00, // CGMS_WSS_1
232 0x18, 0x00, // CGMS_WSS_2
233 0x19, 0x00, // Teletext Ctl
238 adv7170_command (struct i2c_client *client,
242 struct adv7170 *encoder = i2c_get_clientdata(client);
248 /* This is just for testing!!! */
249 adv7170_write_block(client, init_common,
250 sizeof(init_common));
251 adv7170_write(client, 0x07, TR0MODE | TR0RST);
252 adv7170_write(client, 0x07, TR0MODE);
256 case ENCODER_GET_CAPABILITIES:
258 struct video_encoder_capability *cap = arg;
260 cap->flags = VIDEO_ENCODER_PAL |
267 case ENCODER_SET_NORM:
269 int iarg = *(int *) arg;
271 dprintk(1, KERN_DEBUG "%s_command: set norm %d",
272 I2C_NAME(client), iarg);
276 case VIDEO_MODE_NTSC:
277 adv7170_write_block(client, init_NTSC,
279 if (encoder->input == 0)
280 adv7170_write(client, 0x02, 0x0e); // Enable genlock
281 adv7170_write(client, 0x07, TR0MODE | TR0RST);
282 adv7170_write(client, 0x07, TR0MODE);
286 adv7170_write_block(client, init_PAL,
288 if (encoder->input == 0)
289 adv7170_write(client, 0x02, 0x0e); // Enable genlock
290 adv7170_write(client, 0x07, TR0MODE | TR0RST);
291 adv7170_write(client, 0x07, TR0MODE);
295 dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
296 I2C_NAME(client), iarg);
300 dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
302 encoder->norm = iarg;
306 case ENCODER_SET_INPUT:
308 int iarg = *(int *) arg;
310 /* RJ: *iarg = 0: input is from decoder
311 *iarg = 1: input is from ZR36060
312 *iarg = 2: color bar */
314 dprintk(1, KERN_DEBUG "%s_command: set input from %s\n",
316 iarg == 0 ? "decoder" : "ZR36060");
321 adv7170_write(client, 0x01, 0x20);
322 adv7170_write(client, 0x08, TR1CAPT); /* TR1 */
323 adv7170_write(client, 0x02, 0x0e); // Enable genlock
324 adv7170_write(client, 0x07, TR0MODE | TR0RST);
325 adv7170_write(client, 0x07, TR0MODE);
330 adv7170_write(client, 0x01, 0x00);
331 adv7170_write(client, 0x08, TR1PLAY); /* TR1 */
332 adv7170_write(client, 0x02, 0x08);
333 adv7170_write(client, 0x07, TR0MODE | TR0RST);
334 adv7170_write(client, 0x07, TR0MODE);
339 dprintk(1, KERN_ERR "%s: illegal input: %d\n",
340 I2C_NAME(client), iarg);
344 dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
346 encoder->input = iarg;
350 case ENCODER_SET_OUTPUT:
354 /* not much choice of outputs */
361 case ENCODER_ENABLE_OUTPUT:
365 encoder->enable = !!*iarg;
376 /* ----------------------------------------------------------------------- */
380 * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
382 static unsigned short normal_i2c[] =
383 { I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1,
384 I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1,
387 static unsigned short normal_i2c_range[] = { I2C_CLIENT_END };
389 static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
390 static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
391 static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
392 static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
393 static unsigned short force[2] = { I2C_CLIENT_END , I2C_CLIENT_END };
395 static struct i2c_client_address_data addr_data = {
396 .normal_i2c = normal_i2c,
397 .normal_i2c_range = normal_i2c_range,
399 .probe_range = probe_range,
401 .ignore_range = ignore_range,
405 static struct i2c_driver i2c_driver_adv7170;
408 adv7170_detect_client (struct i2c_adapter *adapter,
413 struct i2c_client *client;
414 struct adv7170 *encoder;
419 "adv7170.c: detecting adv7170 client on address 0x%x\n",
422 /* Check if the adapter supports the needed features */
423 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
426 client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
429 memset(client, 0, sizeof(struct i2c_client));
430 client->addr = address;
431 client->adapter = adapter;
432 client->driver = &i2c_driver_adv7170;
433 client->flags = I2C_CLIENT_ALLOW_USE;
434 if ((client->addr == I2C_ADV7170 >> 1) ||
435 (client->addr == (I2C_ADV7170 >> 1) + 1)) {
436 dname = adv7170_name;
437 } else if ((client->addr == I2C_ADV7171 >> 1) ||
438 (client->addr == (I2C_ADV7171 >> 1) + 1)) {
439 dname = adv7171_name;
441 /* We should never get here!!! */
445 strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));
447 encoder = kmalloc(sizeof(struct adv7170), GFP_KERNEL);
448 if (encoder == NULL) {
452 memset(encoder, 0, sizeof(struct adv7170));
453 encoder->norm = VIDEO_MODE_NTSC;
456 i2c_set_clientdata(client, encoder);
458 i = i2c_attach_client(client);
465 i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
467 i = adv7170_write(client, 0x07, TR0MODE | TR0RST);
468 i = adv7170_write(client, 0x07, TR0MODE);
469 i = adv7170_read(client, 0x12);
470 dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n",
471 I2C_NAME(client), i & 1, client->addr << 1);
474 dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
475 I2C_NAME(client), i);
482 adv7170_attach_adapter (struct i2c_adapter *adapter)
486 "adv7170.c: starting probe for adapter %s (0x%x)\n",
487 I2C_NAME(adapter), adapter->id);
488 return i2c_probe(adapter, &addr_data, &adv7170_detect_client);
492 adv7170_detach_client (struct i2c_client *client)
494 struct adv7170 *encoder = i2c_get_clientdata(client);
497 err = i2c_detach_client(client);
508 /* ----------------------------------------------------------------------- */
510 static struct i2c_driver i2c_driver_adv7170 = {
511 .owner = THIS_MODULE,
512 .name = "adv7170", /* name */
514 .id = I2C_DRIVERID_ADV7170,
515 .flags = I2C_DF_NOTIFY,
517 .attach_adapter = adv7170_attach_adapter,
518 .detach_client = adv7170_detach_client,
519 .command = adv7170_command,
525 return i2c_add_driver(&i2c_driver_adv7170);
531 i2c_del_driver(&i2c_driver_adv7170);
534 module_init(adv7170_init);
535 module_exit(adv7170_exit);