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Commit | Line | Data |
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d56410e0 | 1 | /* |
1da177e4 LT |
2 | * adv7170 - adv7170, adv7171 video encoder driver version 0.0.1 |
3 | * | |
4 | * Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com> | |
5 | * | |
d56410e0 | 6 | * Based on adv7176 driver by: |
1da177e4 LT |
7 | * |
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. | |
12 | * | |
13 | * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> | |
14 | * - moved over to linux>=2.4.x i2c protocol (1/1/2003) | |
15 | * | |
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. | |
20 | * | |
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. | |
25 | * | |
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. | |
29 | */ | |
30 | ||
31 | #include <linux/module.h> | |
18f3fa1e | 32 | #include <linux/types.h> |
b9a21f84 | 33 | #include <linux/ioctl.h> |
18f3fa1e | 34 | #include <asm/uaccess.h> |
b9a21f84 HV |
35 | #include <linux/i2c.h> |
36 | #include <linux/i2c-id.h> | |
1da177e4 | 37 | #include <linux/videodev.h> |
18f3fa1e | 38 | #include <linux/video_encoder.h> |
b9a21f84 HV |
39 | #include <media/v4l2-common.h> |
40 | #include <media/v4l2-i2c-drv-legacy.h> | |
1da177e4 LT |
41 | |
42 | MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver"); | |
43 | MODULE_AUTHOR("Maxim Yevtyushkin"); | |
44 | MODULE_LICENSE("GPL"); | |
45 | ||
ff699e6b | 46 | static int debug; |
1da177e4 LT |
47 | module_param(debug, int, 0); |
48 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
49 | ||
1da177e4 LT |
50 | /* ----------------------------------------------------------------------- */ |
51 | ||
52 | struct adv7170 { | |
53 | unsigned char reg[128]; | |
54 | ||
107063c6 | 55 | v4l2_std_id norm; |
1da177e4 | 56 | int input; |
1da177e4 LT |
57 | int bright; |
58 | int contrast; | |
59 | int hue; | |
60 | int sat; | |
61 | }; | |
62 | ||
1da177e4 | 63 | static char *inputs[] = { "pass_through", "play_back" }; |
1da177e4 LT |
64 | |
65 | /* ----------------------------------------------------------------------- */ | |
66 | ||
b9a21f84 | 67 | static inline int adv7170_write(struct i2c_client *client, u8 reg, u8 value) |
1da177e4 LT |
68 | { |
69 | struct adv7170 *encoder = i2c_get_clientdata(client); | |
70 | ||
71 | encoder->reg[reg] = value; | |
72 | return i2c_smbus_write_byte_data(client, reg, value); | |
73 | } | |
74 | ||
b9a21f84 | 75 | static inline int adv7170_read(struct i2c_client *client, u8 reg) |
1da177e4 LT |
76 | { |
77 | return i2c_smbus_read_byte_data(client, reg); | |
78 | } | |
79 | ||
b9a21f84 HV |
80 | static int adv7170_write_block(struct i2c_client *client, |
81 | const u8 *data, unsigned int len) | |
1da177e4 LT |
82 | { |
83 | int ret = -1; | |
84 | u8 reg; | |
85 | ||
86 | /* the adv7170 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 */ | |
90 | struct adv7170 *encoder = i2c_get_clientdata(client); | |
1da177e4 | 91 | u8 block_data[32]; |
9aa45e34 | 92 | int block_len; |
1da177e4 | 93 | |
1da177e4 | 94 | while (len >= 2) { |
9aa45e34 JD |
95 | block_len = 0; |
96 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 97 | do { |
9aa45e34 | 98 | block_data[block_len++] = |
1da177e4 LT |
99 | encoder->reg[reg++] = data[1]; |
100 | len -= 2; | |
101 | data += 2; | |
b9a21f84 HV |
102 | } while (len >= 2 && data[0] == reg && block_len < 32); |
103 | ret = i2c_master_send(client, block_data, block_len); | |
104 | if (ret < 0) | |
1da177e4 LT |
105 | break; |
106 | } | |
107 | } else { | |
108 | /* do some slow I2C emulation kind of thing */ | |
109 | while (len >= 2) { | |
110 | reg = *data++; | |
b9a21f84 HV |
111 | ret = adv7170_write(client, reg, *data++); |
112 | if (ret < 0) | |
1da177e4 LT |
113 | break; |
114 | len -= 2; | |
115 | } | |
116 | } | |
1da177e4 LT |
117 | return ret; |
118 | } | |
119 | ||
120 | /* ----------------------------------------------------------------------- */ | |
1da177e4 LT |
121 | |
122 | #define TR0MODE 0x4c | |
123 | #define TR0RST 0x80 | |
124 | ||
125 | #define TR1CAPT 0x00 | |
126 | #define TR1PLAY 0x00 | |
127 | ||
1da177e4 LT |
128 | static const unsigned char init_NTSC[] = { |
129 | 0x00, 0x10, // MR0 | |
130 | 0x01, 0x20, // MR1 | |
d56410e0 | 131 | 0x02, 0x0e, // MR2 RTC control: bits 2 and 1 |
1da177e4 LT |
132 | 0x03, 0x80, // MR3 |
133 | 0x04, 0x30, // MR4 | |
134 | 0x05, 0x00, // Reserved | |
135 | 0x06, 0x00, // Reserved | |
136 | 0x07, TR0MODE, // TM0 | |
137 | 0x08, TR1CAPT, // TM1 | |
138 | 0x09, 0x16, // Fsc0 | |
139 | 0x0a, 0x7c, // Fsc1 | |
140 | 0x0b, 0xf0, // Fsc2 | |
141 | 0x0c, 0x21, // Fsc3 | |
142 | 0x0d, 0x00, // Subcarrier Phase | |
143 | 0x0e, 0x00, // Closed Capt. Ext 0 | |
144 | 0x0f, 0x00, // Closed Capt. Ext 1 | |
145 | 0x10, 0x00, // Closed Capt. 0 | |
146 | 0x11, 0x00, // Closed Capt. 1 | |
147 | 0x12, 0x00, // Pedestal Ctl 0 | |
148 | 0x13, 0x00, // Pedestal Ctl 1 | |
149 | 0x14, 0x00, // Pedestal Ctl 2 | |
150 | 0x15, 0x00, // Pedestal Ctl 3 | |
151 | 0x16, 0x00, // CGMS_WSS_0 | |
152 | 0x17, 0x00, // CGMS_WSS_1 | |
153 | 0x18, 0x00, // CGMS_WSS_2 | |
d56410e0 | 154 | 0x19, 0x00, // Teletext Ctl |
1da177e4 LT |
155 | }; |
156 | ||
157 | static const unsigned char init_PAL[] = { | |
158 | 0x00, 0x71, // MR0 | |
159 | 0x01, 0x20, // MR1 | |
160 | 0x02, 0x0e, // MR2 RTC control: bits 2 and 1 | |
161 | 0x03, 0x80, // MR3 | |
162 | 0x04, 0x30, // MR4 | |
163 | 0x05, 0x00, // Reserved | |
164 | 0x06, 0x00, // Reserved | |
165 | 0x07, TR0MODE, // TM0 | |
166 | 0x08, TR1CAPT, // TM1 | |
167 | 0x09, 0xcb, // Fsc0 | |
168 | 0x0a, 0x8a, // Fsc1 | |
169 | 0x0b, 0x09, // Fsc2 | |
170 | 0x0c, 0x2a, // Fsc3 | |
171 | 0x0d, 0x00, // Subcarrier Phase | |
172 | 0x0e, 0x00, // Closed Capt. Ext 0 | |
173 | 0x0f, 0x00, // Closed Capt. Ext 1 | |
174 | 0x10, 0x00, // Closed Capt. 0 | |
175 | 0x11, 0x00, // Closed Capt. 1 | |
176 | 0x12, 0x00, // Pedestal Ctl 0 | |
177 | 0x13, 0x00, // Pedestal Ctl 1 | |
178 | 0x14, 0x00, // Pedestal Ctl 2 | |
179 | 0x15, 0x00, // Pedestal Ctl 3 | |
180 | 0x16, 0x00, // CGMS_WSS_0 | |
181 | 0x17, 0x00, // CGMS_WSS_1 | |
182 | 0x18, 0x00, // CGMS_WSS_2 | |
183 | 0x19, 0x00, // Teletext Ctl | |
184 | }; | |
185 | ||
186 | ||
b9a21f84 | 187 | static int adv7170_command(struct i2c_client *client, unsigned cmd, void *arg) |
1da177e4 LT |
188 | { |
189 | struct adv7170 *encoder = i2c_get_clientdata(client); | |
190 | ||
191 | switch (cmd) { | |
107063c6 | 192 | case VIDIOC_INT_INIT: |
1da177e4 LT |
193 | #if 0 |
194 | /* This is just for testing!!! */ | |
195 | adv7170_write_block(client, init_common, | |
196 | sizeof(init_common)); | |
197 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
198 | adv7170_write(client, 0x07, TR0MODE); | |
199 | #endif | |
200 | break; | |
201 | ||
107063c6 | 202 | case VIDIOC_INT_S_STD_OUTPUT: |
1da177e4 | 203 | { |
107063c6 | 204 | v4l2_std_id iarg = *(v4l2_std_id *) arg; |
1da177e4 | 205 | |
107063c6 | 206 | v4l_dbg(1, debug, client, "set norm %llx\n", iarg); |
1da177e4 | 207 | |
107063c6 | 208 | if (iarg & V4L2_STD_NTSC) { |
1da177e4 LT |
209 | adv7170_write_block(client, init_NTSC, |
210 | sizeof(init_NTSC)); | |
211 | if (encoder->input == 0) | |
212 | adv7170_write(client, 0x02, 0x0e); // Enable genlock | |
213 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
214 | adv7170_write(client, 0x07, TR0MODE); | |
107063c6 | 215 | } else if (iarg & V4L2_STD_PAL) { |
1da177e4 LT |
216 | adv7170_write_block(client, init_PAL, |
217 | sizeof(init_PAL)); | |
218 | if (encoder->input == 0) | |
219 | adv7170_write(client, 0x02, 0x0e); // Enable genlock | |
220 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
221 | adv7170_write(client, 0x07, TR0MODE); | |
107063c6 HV |
222 | } else { |
223 | v4l_dbg(1, debug, client, "illegal norm: %llx\n", iarg); | |
1da177e4 | 224 | return -EINVAL; |
1da177e4 | 225 | } |
107063c6 | 226 | v4l_dbg(1, debug, client, "switched to %llx\n", iarg); |
1da177e4 | 227 | encoder->norm = iarg; |
1da177e4 | 228 | break; |
b9a21f84 | 229 | } |
1da177e4 | 230 | |
107063c6 | 231 | case VIDIOC_INT_S_VIDEO_ROUTING: |
1da177e4 | 232 | { |
107063c6 | 233 | struct v4l2_routing *route = arg; |
1da177e4 LT |
234 | |
235 | /* RJ: *iarg = 0: input is from decoder | |
236 | *iarg = 1: input is from ZR36060 | |
237 | *iarg = 2: color bar */ | |
238 | ||
b9a21f84 | 239 | v4l_dbg(1, debug, client, "set input from %s\n", |
107063c6 | 240 | route->input == 0 ? "decoder" : "ZR36060"); |
1da177e4 | 241 | |
107063c6 | 242 | switch (route->input) { |
1da177e4 LT |
243 | case 0: |
244 | adv7170_write(client, 0x01, 0x20); | |
245 | adv7170_write(client, 0x08, TR1CAPT); /* TR1 */ | |
246 | adv7170_write(client, 0x02, 0x0e); // Enable genlock | |
247 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
248 | adv7170_write(client, 0x07, TR0MODE); | |
b9a21f84 | 249 | /* udelay(10); */ |
1da177e4 LT |
250 | break; |
251 | ||
252 | case 1: | |
253 | adv7170_write(client, 0x01, 0x00); | |
254 | adv7170_write(client, 0x08, TR1PLAY); /* TR1 */ | |
255 | adv7170_write(client, 0x02, 0x08); | |
256 | adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
257 | adv7170_write(client, 0x07, TR0MODE); | |
b9a21f84 | 258 | /* udelay(10); */ |
1da177e4 LT |
259 | break; |
260 | ||
261 | default: | |
107063c6 | 262 | v4l_dbg(1, debug, client, "illegal input: %d\n", route->input); |
1da177e4 LT |
263 | return -EINVAL; |
264 | } | |
107063c6 HV |
265 | v4l_dbg(1, debug, client, "switched to %s\n", inputs[route->input]); |
266 | encoder->input = route->input; | |
1da177e4 | 267 | break; |
b9a21f84 | 268 | } |
1da177e4 LT |
269 | |
270 | default: | |
271 | return -EINVAL; | |
272 | } | |
273 | ||
274 | return 0; | |
275 | } | |
276 | ||
277 | /* ----------------------------------------------------------------------- */ | |
278 | ||
b9a21f84 HV |
279 | static unsigned short normal_i2c[] = { |
280 | 0xd4 >> 1, 0xd6 >> 1, /* adv7170 IDs */ | |
281 | 0x54 >> 1, 0x56 >> 1, /* adv7171 IDs */ | |
1da177e4 LT |
282 | I2C_CLIENT_END |
283 | }; | |
1da177e4 | 284 | |
b9a21f84 | 285 | I2C_CLIENT_INSMOD; |
d56410e0 | 286 | |
b9a21f84 HV |
287 | static int adv7170_probe(struct i2c_client *client, |
288 | const struct i2c_device_id *id) | |
1da177e4 | 289 | { |
1da177e4 | 290 | struct adv7170 *encoder; |
b9a21f84 | 291 | int i; |
1da177e4 LT |
292 | |
293 | /* Check if the adapter supports the needed features */ | |
b9a21f84 HV |
294 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
295 | return -ENODEV; | |
1da177e4 | 296 | |
b9a21f84 HV |
297 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
298 | client->addr << 1, client->adapter->name); | |
1da177e4 | 299 | |
7408187d | 300 | encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL); |
b9a21f84 | 301 | if (encoder == NULL) |
1da177e4 | 302 | return -ENOMEM; |
107063c6 | 303 | encoder->norm = V4L2_STD_NTSC; |
1da177e4 | 304 | encoder->input = 0; |
1da177e4 LT |
305 | i2c_set_clientdata(client, encoder); |
306 | ||
1da177e4 LT |
307 | i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC)); |
308 | if (i >= 0) { | |
309 | i = adv7170_write(client, 0x07, TR0MODE | TR0RST); | |
310 | i = adv7170_write(client, 0x07, TR0MODE); | |
311 | i = adv7170_read(client, 0x12); | |
b9a21f84 | 312 | v4l_dbg(1, debug, client, "revision %d\n", i & 1); |
1da177e4 | 313 | } |
b9a21f84 HV |
314 | if (i < 0) |
315 | v4l_dbg(1, debug, client, "init error 0x%x\n", i); | |
1da177e4 LT |
316 | return 0; |
317 | } | |
318 | ||
b9a21f84 | 319 | static int adv7170_remove(struct i2c_client *client) |
1da177e4 | 320 | { |
b9a21f84 | 321 | kfree(i2c_get_clientdata(client)); |
1da177e4 LT |
322 | return 0; |
323 | } | |
324 | ||
325 | /* ----------------------------------------------------------------------- */ | |
326 | ||
b9a21f84 HV |
327 | static const struct i2c_device_id adv7170_id[] = { |
328 | { "adv7170", 0 }, | |
329 | { "adv7171", 0 }, | |
330 | { } | |
331 | }; | |
332 | MODULE_DEVICE_TABLE(i2c, adv7170_id); | |
1da177e4 | 333 | |
b9a21f84 HV |
334 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { |
335 | .name = "adv7170", | |
336 | .driverid = I2C_DRIVERID_ADV7170, | |
1da177e4 | 337 | .command = adv7170_command, |
b9a21f84 HV |
338 | .probe = adv7170_probe, |
339 | .remove = adv7170_remove, | |
340 | .id_table = adv7170_id, | |
1da177e4 | 341 | }; |