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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> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
b9a21f84 | 34 | #include <linux/ioctl.h> |
18f3fa1e | 35 | #include <asm/uaccess.h> |
b9a21f84 | 36 | #include <linux/i2c.h> |
7d9ef21c HV |
37 | #include <linux/videodev2.h> |
38 | #include <media/v4l2-device.h> | |
39 | #include <media/v4l2-chip-ident.h> | |
1da177e4 LT |
40 | |
41 | MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver"); | |
42 | MODULE_AUTHOR("Maxim Yevtyushkin"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
7d9ef21c | 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 { | |
7d9ef21c | 53 | struct v4l2_subdev sd; |
1da177e4 LT |
54 | unsigned char reg[128]; |
55 | ||
107063c6 | 56 | v4l2_std_id norm; |
1da177e4 | 57 | int input; |
1da177e4 LT |
58 | }; |
59 | ||
7d9ef21c HV |
60 | static inline struct adv7170 *to_adv7170(struct v4l2_subdev *sd) |
61 | { | |
62 | return container_of(sd, struct adv7170, sd); | |
63 | } | |
64 | ||
1da177e4 | 65 | static char *inputs[] = { "pass_through", "play_back" }; |
1da177e4 LT |
66 | |
67 | /* ----------------------------------------------------------------------- */ | |
68 | ||
7d9ef21c | 69 | static inline int adv7170_write(struct v4l2_subdev *sd, u8 reg, u8 value) |
1da177e4 | 70 | { |
7d9ef21c HV |
71 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
72 | struct adv7170 *encoder = to_adv7170(sd); | |
1da177e4 LT |
73 | |
74 | encoder->reg[reg] = value; | |
75 | return i2c_smbus_write_byte_data(client, reg, value); | |
76 | } | |
77 | ||
7d9ef21c | 78 | static inline int adv7170_read(struct v4l2_subdev *sd, u8 reg) |
1da177e4 | 79 | { |
7d9ef21c HV |
80 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
81 | ||
1da177e4 LT |
82 | return i2c_smbus_read_byte_data(client, reg); |
83 | } | |
84 | ||
7d9ef21c | 85 | static int adv7170_write_block(struct v4l2_subdev *sd, |
b9a21f84 | 86 | const u8 *data, unsigned int len) |
1da177e4 | 87 | { |
7d9ef21c HV |
88 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
89 | struct adv7170 *encoder = to_adv7170(sd); | |
1da177e4 LT |
90 | int ret = -1; |
91 | u8 reg; | |
92 | ||
93 | /* the adv7170 has an autoincrement function, use it if | |
94 | * the adapter understands raw I2C */ | |
95 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
96 | /* do raw I2C, not smbus compatible */ | |
1da177e4 | 97 | u8 block_data[32]; |
9aa45e34 | 98 | int block_len; |
1da177e4 | 99 | |
1da177e4 | 100 | while (len >= 2) { |
9aa45e34 JD |
101 | block_len = 0; |
102 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 103 | do { |
9aa45e34 | 104 | block_data[block_len++] = |
1da177e4 LT |
105 | encoder->reg[reg++] = data[1]; |
106 | len -= 2; | |
107 | data += 2; | |
b9a21f84 HV |
108 | } while (len >= 2 && data[0] == reg && block_len < 32); |
109 | ret = i2c_master_send(client, block_data, block_len); | |
110 | if (ret < 0) | |
1da177e4 LT |
111 | break; |
112 | } | |
113 | } else { | |
114 | /* do some slow I2C emulation kind of thing */ | |
115 | while (len >= 2) { | |
116 | reg = *data++; | |
7d9ef21c | 117 | ret = adv7170_write(sd, reg, *data++); |
b9a21f84 | 118 | if (ret < 0) |
1da177e4 LT |
119 | break; |
120 | len -= 2; | |
121 | } | |
122 | } | |
1da177e4 LT |
123 | return ret; |
124 | } | |
125 | ||
126 | /* ----------------------------------------------------------------------- */ | |
1da177e4 LT |
127 | |
128 | #define TR0MODE 0x4c | |
129 | #define TR0RST 0x80 | |
130 | ||
131 | #define TR1CAPT 0x00 | |
132 | #define TR1PLAY 0x00 | |
133 | ||
1da177e4 | 134 | static const unsigned char init_NTSC[] = { |
7d9ef21c HV |
135 | 0x00, 0x10, /* MR0 */ |
136 | 0x01, 0x20, /* MR1 */ | |
137 | 0x02, 0x0e, /* MR2 RTC control: bits 2 and 1 */ | |
138 | 0x03, 0x80, /* MR3 */ | |
139 | 0x04, 0x30, /* MR4 */ | |
140 | 0x05, 0x00, /* Reserved */ | |
141 | 0x06, 0x00, /* Reserved */ | |
142 | 0x07, TR0MODE, /* TM0 */ | |
143 | 0x08, TR1CAPT, /* TM1 */ | |
144 | 0x09, 0x16, /* Fsc0 */ | |
145 | 0x0a, 0x7c, /* Fsc1 */ | |
146 | 0x0b, 0xf0, /* Fsc2 */ | |
147 | 0x0c, 0x21, /* Fsc3 */ | |
148 | 0x0d, 0x00, /* Subcarrier Phase */ | |
149 | 0x0e, 0x00, /* Closed Capt. Ext 0 */ | |
150 | 0x0f, 0x00, /* Closed Capt. Ext 1 */ | |
151 | 0x10, 0x00, /* Closed Capt. 0 */ | |
152 | 0x11, 0x00, /* Closed Capt. 1 */ | |
153 | 0x12, 0x00, /* Pedestal Ctl 0 */ | |
154 | 0x13, 0x00, /* Pedestal Ctl 1 */ | |
155 | 0x14, 0x00, /* Pedestal Ctl 2 */ | |
156 | 0x15, 0x00, /* Pedestal Ctl 3 */ | |
157 | 0x16, 0x00, /* CGMS_WSS_0 */ | |
158 | 0x17, 0x00, /* CGMS_WSS_1 */ | |
159 | 0x18, 0x00, /* CGMS_WSS_2 */ | |
160 | 0x19, 0x00, /* Teletext Ctl */ | |
1da177e4 LT |
161 | }; |
162 | ||
163 | static const unsigned char init_PAL[] = { | |
7d9ef21c HV |
164 | 0x00, 0x71, /* MR0 */ |
165 | 0x01, 0x20, /* MR1 */ | |
166 | 0x02, 0x0e, /* MR2 RTC control: bits 2 and 1 */ | |
167 | 0x03, 0x80, /* MR3 */ | |
168 | 0x04, 0x30, /* MR4 */ | |
169 | 0x05, 0x00, /* Reserved */ | |
170 | 0x06, 0x00, /* Reserved */ | |
171 | 0x07, TR0MODE, /* TM0 */ | |
172 | 0x08, TR1CAPT, /* TM1 */ | |
173 | 0x09, 0xcb, /* Fsc0 */ | |
174 | 0x0a, 0x8a, /* Fsc1 */ | |
175 | 0x0b, 0x09, /* Fsc2 */ | |
176 | 0x0c, 0x2a, /* Fsc3 */ | |
177 | 0x0d, 0x00, /* Subcarrier Phase */ | |
178 | 0x0e, 0x00, /* Closed Capt. Ext 0 */ | |
179 | 0x0f, 0x00, /* Closed Capt. Ext 1 */ | |
180 | 0x10, 0x00, /* Closed Capt. 0 */ | |
181 | 0x11, 0x00, /* Closed Capt. 1 */ | |
182 | 0x12, 0x00, /* Pedestal Ctl 0 */ | |
183 | 0x13, 0x00, /* Pedestal Ctl 1 */ | |
184 | 0x14, 0x00, /* Pedestal Ctl 2 */ | |
185 | 0x15, 0x00, /* Pedestal Ctl 3 */ | |
186 | 0x16, 0x00, /* CGMS_WSS_0 */ | |
187 | 0x17, 0x00, /* CGMS_WSS_1 */ | |
188 | 0x18, 0x00, /* CGMS_WSS_2 */ | |
189 | 0x19, 0x00, /* Teletext Ctl */ | |
1da177e4 LT |
190 | }; |
191 | ||
192 | ||
7d9ef21c | 193 | static int adv7170_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std) |
1da177e4 | 194 | { |
7d9ef21c HV |
195 | struct adv7170 *encoder = to_adv7170(sd); |
196 | ||
cc5cef8e | 197 | v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std); |
7d9ef21c HV |
198 | |
199 | if (std & V4L2_STD_NTSC) { | |
200 | adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC)); | |
201 | if (encoder->input == 0) | |
202 | adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */ | |
203 | adv7170_write(sd, 0x07, TR0MODE | TR0RST); | |
204 | adv7170_write(sd, 0x07, TR0MODE); | |
205 | } else if (std & V4L2_STD_PAL) { | |
206 | adv7170_write_block(sd, init_PAL, sizeof(init_PAL)); | |
207 | if (encoder->input == 0) | |
208 | adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */ | |
209 | adv7170_write(sd, 0x07, TR0MODE | TR0RST); | |
210 | adv7170_write(sd, 0x07, TR0MODE); | |
211 | } else { | |
cc5cef8e HV |
212 | v4l2_dbg(1, debug, sd, "illegal norm: %llx\n", |
213 | (unsigned long long)std); | |
7d9ef21c | 214 | return -EINVAL; |
b9a21f84 | 215 | } |
cc5cef8e | 216 | v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std); |
7d9ef21c HV |
217 | encoder->norm = std; |
218 | return 0; | |
219 | } | |
1da177e4 | 220 | |
5325b427 HV |
221 | static int adv7170_s_routing(struct v4l2_subdev *sd, |
222 | u32 input, u32 output, u32 config) | |
7d9ef21c HV |
223 | { |
224 | struct adv7170 *encoder = to_adv7170(sd); | |
1da177e4 | 225 | |
5325b427 HV |
226 | /* RJ: input = 0: input is from decoder |
227 | input = 1: input is from ZR36060 | |
228 | input = 2: color bar */ | |
1da177e4 | 229 | |
7d9ef21c | 230 | v4l2_dbg(1, debug, sd, "set input from %s\n", |
5325b427 | 231 | input == 0 ? "decoder" : "ZR36060"); |
1da177e4 | 232 | |
5325b427 | 233 | switch (input) { |
7d9ef21c HV |
234 | case 0: |
235 | adv7170_write(sd, 0x01, 0x20); | |
236 | adv7170_write(sd, 0x08, TR1CAPT); /* TR1 */ | |
237 | adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */ | |
238 | adv7170_write(sd, 0x07, TR0MODE | TR0RST); | |
239 | adv7170_write(sd, 0x07, TR0MODE); | |
240 | /* udelay(10); */ | |
241 | break; | |
242 | ||
243 | case 1: | |
244 | adv7170_write(sd, 0x01, 0x00); | |
245 | adv7170_write(sd, 0x08, TR1PLAY); /* TR1 */ | |
246 | adv7170_write(sd, 0x02, 0x08); | |
247 | adv7170_write(sd, 0x07, TR0MODE | TR0RST); | |
248 | adv7170_write(sd, 0x07, TR0MODE); | |
249 | /* udelay(10); */ | |
1da177e4 LT |
250 | break; |
251 | ||
252 | default: | |
5325b427 | 253 | v4l2_dbg(1, debug, sd, "illegal input: %d\n", input); |
1da177e4 LT |
254 | return -EINVAL; |
255 | } | |
5325b427 HV |
256 | v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]); |
257 | encoder->input = input; | |
1da177e4 LT |
258 | return 0; |
259 | } | |
260 | ||
7d9ef21c HV |
261 | static int adv7170_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) |
262 | { | |
263 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
264 | ||
35631dcc | 265 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7170, 0); |
7d9ef21c HV |
266 | } |
267 | ||
1da177e4 LT |
268 | /* ----------------------------------------------------------------------- */ |
269 | ||
7d9ef21c HV |
270 | static const struct v4l2_subdev_core_ops adv7170_core_ops = { |
271 | .g_chip_ident = adv7170_g_chip_ident, | |
1da177e4 | 272 | }; |
1da177e4 | 273 | |
7d9ef21c HV |
274 | static const struct v4l2_subdev_video_ops adv7170_video_ops = { |
275 | .s_std_output = adv7170_s_std_output, | |
276 | .s_routing = adv7170_s_routing, | |
277 | }; | |
278 | ||
279 | static const struct v4l2_subdev_ops adv7170_ops = { | |
280 | .core = &adv7170_core_ops, | |
281 | .video = &adv7170_video_ops, | |
282 | }; | |
283 | ||
284 | /* ----------------------------------------------------------------------- */ | |
d56410e0 | 285 | |
b9a21f84 HV |
286 | static int adv7170_probe(struct i2c_client *client, |
287 | const struct i2c_device_id *id) | |
1da177e4 | 288 | { |
1da177e4 | 289 | struct adv7170 *encoder; |
7d9ef21c | 290 | struct v4l2_subdev *sd; |
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; |
7d9ef21c HV |
303 | sd = &encoder->sd; |
304 | v4l2_i2c_subdev_init(sd, client, &adv7170_ops); | |
107063c6 | 305 | encoder->norm = V4L2_STD_NTSC; |
1da177e4 | 306 | encoder->input = 0; |
1da177e4 | 307 | |
7d9ef21c | 308 | i = adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC)); |
1da177e4 | 309 | if (i >= 0) { |
7d9ef21c HV |
310 | i = adv7170_write(sd, 0x07, TR0MODE | TR0RST); |
311 | i = adv7170_write(sd, 0x07, TR0MODE); | |
312 | i = adv7170_read(sd, 0x12); | |
313 | v4l2_dbg(1, debug, sd, "revision %d\n", i & 1); | |
1da177e4 | 314 | } |
b9a21f84 | 315 | if (i < 0) |
7d9ef21c | 316 | v4l2_dbg(1, debug, sd, "init error 0x%x\n", i); |
1da177e4 LT |
317 | return 0; |
318 | } | |
319 | ||
b9a21f84 | 320 | static int adv7170_remove(struct i2c_client *client) |
1da177e4 | 321 | { |
7d9ef21c HV |
322 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
323 | ||
324 | v4l2_device_unregister_subdev(sd); | |
325 | kfree(to_adv7170(sd)); | |
1da177e4 LT |
326 | return 0; |
327 | } | |
328 | ||
329 | /* ----------------------------------------------------------------------- */ | |
330 | ||
b9a21f84 HV |
331 | static const struct i2c_device_id adv7170_id[] = { |
332 | { "adv7170", 0 }, | |
333 | { "adv7171", 0 }, | |
334 | { } | |
335 | }; | |
336 | MODULE_DEVICE_TABLE(i2c, adv7170_id); | |
1da177e4 | 337 | |
c9611802 HV |
338 | static struct i2c_driver adv7170_driver = { |
339 | .driver = { | |
340 | .owner = THIS_MODULE, | |
341 | .name = "adv7170", | |
342 | }, | |
343 | .probe = adv7170_probe, | |
344 | .remove = adv7170_remove, | |
345 | .id_table = adv7170_id, | |
1da177e4 | 346 | }; |
c9611802 HV |
347 | |
348 | static __init int init_adv7170(void) | |
349 | { | |
350 | return i2c_add_driver(&adv7170_driver); | |
351 | } | |
352 | ||
353 | static __exit void exit_adv7170(void) | |
354 | { | |
355 | i2c_del_driver(&adv7170_driver); | |
356 | } | |
357 | ||
358 | module_init(init_adv7170); | |
359 | module_exit(exit_adv7170); |