Commit | Line | Data |
---|---|---|
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> | |
7d9ef21c HV |
37 | #include <linux/videodev2.h> |
38 | #include <media/v4l2-device.h> | |
39 | #include <media/v4l2-chip-ident.h> | |
2d26698e | 40 | #include <media/v4l2-i2c-drv.h> |
1da177e4 LT |
41 | |
42 | MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver"); | |
43 | MODULE_AUTHOR("Maxim Yevtyushkin"); | |
44 | MODULE_LICENSE("GPL"); | |
45 | ||
7d9ef21c | 46 | |
ff699e6b | 47 | static int debug; |
1da177e4 LT |
48 | module_param(debug, int, 0); |
49 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
50 | ||
1da177e4 LT |
51 | /* ----------------------------------------------------------------------- */ |
52 | ||
53 | struct adv7170 { | |
7d9ef21c | 54 | struct v4l2_subdev sd; |
1da177e4 LT |
55 | unsigned char reg[128]; |
56 | ||
107063c6 | 57 | v4l2_std_id norm; |
1da177e4 | 58 | int input; |
1da177e4 LT |
59 | }; |
60 | ||
7d9ef21c HV |
61 | static inline struct adv7170 *to_adv7170(struct v4l2_subdev *sd) |
62 | { | |
63 | return container_of(sd, struct adv7170, sd); | |
64 | } | |
65 | ||
1da177e4 | 66 | static char *inputs[] = { "pass_through", "play_back" }; |
1da177e4 LT |
67 | |
68 | /* ----------------------------------------------------------------------- */ | |
69 | ||
7d9ef21c | 70 | static inline int adv7170_write(struct v4l2_subdev *sd, u8 reg, u8 value) |
1da177e4 | 71 | { |
7d9ef21c HV |
72 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
73 | struct adv7170 *encoder = to_adv7170(sd); | |
1da177e4 LT |
74 | |
75 | encoder->reg[reg] = value; | |
76 | return i2c_smbus_write_byte_data(client, reg, value); | |
77 | } | |
78 | ||
7d9ef21c | 79 | static inline int adv7170_read(struct v4l2_subdev *sd, u8 reg) |
1da177e4 | 80 | { |
7d9ef21c HV |
81 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
82 | ||
1da177e4 LT |
83 | return i2c_smbus_read_byte_data(client, reg); |
84 | } | |
85 | ||
7d9ef21c | 86 | static int adv7170_write_block(struct v4l2_subdev *sd, |
b9a21f84 | 87 | const u8 *data, unsigned int len) |
1da177e4 | 88 | { |
7d9ef21c HV |
89 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
90 | struct adv7170 *encoder = to_adv7170(sd); | |
1da177e4 LT |
91 | int ret = -1; |
92 | u8 reg; | |
93 | ||
94 | /* the adv7170 has an autoincrement function, use it if | |
95 | * the adapter understands raw I2C */ | |
96 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
97 | /* do raw I2C, not smbus compatible */ | |
1da177e4 | 98 | u8 block_data[32]; |
9aa45e34 | 99 | int block_len; |
1da177e4 | 100 | |
1da177e4 | 101 | while (len >= 2) { |
9aa45e34 JD |
102 | block_len = 0; |
103 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 104 | do { |
9aa45e34 | 105 | block_data[block_len++] = |
1da177e4 LT |
106 | encoder->reg[reg++] = data[1]; |
107 | len -= 2; | |
108 | data += 2; | |
b9a21f84 HV |
109 | } while (len >= 2 && data[0] == reg && block_len < 32); |
110 | ret = i2c_master_send(client, block_data, block_len); | |
111 | if (ret < 0) | |
1da177e4 LT |
112 | break; |
113 | } | |
114 | } else { | |
115 | /* do some slow I2C emulation kind of thing */ | |
116 | while (len >= 2) { | |
117 | reg = *data++; | |
7d9ef21c | 118 | ret = adv7170_write(sd, reg, *data++); |
b9a21f84 | 119 | if (ret < 0) |
1da177e4 LT |
120 | break; |
121 | len -= 2; | |
122 | } | |
123 | } | |
1da177e4 LT |
124 | return ret; |
125 | } | |
126 | ||
127 | /* ----------------------------------------------------------------------- */ | |
1da177e4 LT |
128 | |
129 | #define TR0MODE 0x4c | |
130 | #define TR0RST 0x80 | |
131 | ||
132 | #define TR1CAPT 0x00 | |
133 | #define TR1PLAY 0x00 | |
134 | ||
1da177e4 | 135 | static const unsigned char init_NTSC[] = { |
7d9ef21c HV |
136 | 0x00, 0x10, /* MR0 */ |
137 | 0x01, 0x20, /* MR1 */ | |
138 | 0x02, 0x0e, /* MR2 RTC control: bits 2 and 1 */ | |
139 | 0x03, 0x80, /* MR3 */ | |
140 | 0x04, 0x30, /* MR4 */ | |
141 | 0x05, 0x00, /* Reserved */ | |
142 | 0x06, 0x00, /* Reserved */ | |
143 | 0x07, TR0MODE, /* TM0 */ | |
144 | 0x08, TR1CAPT, /* TM1 */ | |
145 | 0x09, 0x16, /* Fsc0 */ | |
146 | 0x0a, 0x7c, /* Fsc1 */ | |
147 | 0x0b, 0xf0, /* Fsc2 */ | |
148 | 0x0c, 0x21, /* Fsc3 */ | |
149 | 0x0d, 0x00, /* Subcarrier Phase */ | |
150 | 0x0e, 0x00, /* Closed Capt. Ext 0 */ | |
151 | 0x0f, 0x00, /* Closed Capt. Ext 1 */ | |
152 | 0x10, 0x00, /* Closed Capt. 0 */ | |
153 | 0x11, 0x00, /* Closed Capt. 1 */ | |
154 | 0x12, 0x00, /* Pedestal Ctl 0 */ | |
155 | 0x13, 0x00, /* Pedestal Ctl 1 */ | |
156 | 0x14, 0x00, /* Pedestal Ctl 2 */ | |
157 | 0x15, 0x00, /* Pedestal Ctl 3 */ | |
158 | 0x16, 0x00, /* CGMS_WSS_0 */ | |
159 | 0x17, 0x00, /* CGMS_WSS_1 */ | |
160 | 0x18, 0x00, /* CGMS_WSS_2 */ | |
161 | 0x19, 0x00, /* Teletext Ctl */ | |
1da177e4 LT |
162 | }; |
163 | ||
164 | static const unsigned char init_PAL[] = { | |
7d9ef21c HV |
165 | 0x00, 0x71, /* MR0 */ |
166 | 0x01, 0x20, /* MR1 */ | |
167 | 0x02, 0x0e, /* MR2 RTC control: bits 2 and 1 */ | |
168 | 0x03, 0x80, /* MR3 */ | |
169 | 0x04, 0x30, /* MR4 */ | |
170 | 0x05, 0x00, /* Reserved */ | |
171 | 0x06, 0x00, /* Reserved */ | |
172 | 0x07, TR0MODE, /* TM0 */ | |
173 | 0x08, TR1CAPT, /* TM1 */ | |
174 | 0x09, 0xcb, /* Fsc0 */ | |
175 | 0x0a, 0x8a, /* Fsc1 */ | |
176 | 0x0b, 0x09, /* Fsc2 */ | |
177 | 0x0c, 0x2a, /* Fsc3 */ | |
178 | 0x0d, 0x00, /* Subcarrier Phase */ | |
179 | 0x0e, 0x00, /* Closed Capt. Ext 0 */ | |
180 | 0x0f, 0x00, /* Closed Capt. Ext 1 */ | |
181 | 0x10, 0x00, /* Closed Capt. 0 */ | |
182 | 0x11, 0x00, /* Closed Capt. 1 */ | |
183 | 0x12, 0x00, /* Pedestal Ctl 0 */ | |
184 | 0x13, 0x00, /* Pedestal Ctl 1 */ | |
185 | 0x14, 0x00, /* Pedestal Ctl 2 */ | |
186 | 0x15, 0x00, /* Pedestal Ctl 3 */ | |
187 | 0x16, 0x00, /* CGMS_WSS_0 */ | |
188 | 0x17, 0x00, /* CGMS_WSS_1 */ | |
189 | 0x18, 0x00, /* CGMS_WSS_2 */ | |
190 | 0x19, 0x00, /* Teletext Ctl */ | |
1da177e4 LT |
191 | }; |
192 | ||
193 | ||
7d9ef21c | 194 | static int adv7170_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std) |
1da177e4 | 195 | { |
7d9ef21c HV |
196 | struct adv7170 *encoder = to_adv7170(sd); |
197 | ||
cc5cef8e | 198 | v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std); |
7d9ef21c HV |
199 | |
200 | if (std & V4L2_STD_NTSC) { | |
201 | adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC)); | |
202 | if (encoder->input == 0) | |
203 | adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */ | |
204 | adv7170_write(sd, 0x07, TR0MODE | TR0RST); | |
205 | adv7170_write(sd, 0x07, TR0MODE); | |
206 | } else if (std & V4L2_STD_PAL) { | |
207 | adv7170_write_block(sd, init_PAL, sizeof(init_PAL)); | |
208 | if (encoder->input == 0) | |
209 | adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */ | |
210 | adv7170_write(sd, 0x07, TR0MODE | TR0RST); | |
211 | adv7170_write(sd, 0x07, TR0MODE); | |
212 | } else { | |
cc5cef8e HV |
213 | v4l2_dbg(1, debug, sd, "illegal norm: %llx\n", |
214 | (unsigned long long)std); | |
7d9ef21c | 215 | return -EINVAL; |
b9a21f84 | 216 | } |
cc5cef8e | 217 | v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std); |
7d9ef21c HV |
218 | encoder->norm = std; |
219 | return 0; | |
220 | } | |
1da177e4 | 221 | |
5325b427 HV |
222 | static int adv7170_s_routing(struct v4l2_subdev *sd, |
223 | u32 input, u32 output, u32 config) | |
7d9ef21c HV |
224 | { |
225 | struct adv7170 *encoder = to_adv7170(sd); | |
1da177e4 | 226 | |
5325b427 HV |
227 | /* RJ: input = 0: input is from decoder |
228 | input = 1: input is from ZR36060 | |
229 | input = 2: color bar */ | |
1da177e4 | 230 | |
7d9ef21c | 231 | v4l2_dbg(1, debug, sd, "set input from %s\n", |
5325b427 | 232 | input == 0 ? "decoder" : "ZR36060"); |
1da177e4 | 233 | |
5325b427 | 234 | switch (input) { |
7d9ef21c HV |
235 | case 0: |
236 | adv7170_write(sd, 0x01, 0x20); | |
237 | adv7170_write(sd, 0x08, TR1CAPT); /* TR1 */ | |
238 | adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */ | |
239 | adv7170_write(sd, 0x07, TR0MODE | TR0RST); | |
240 | adv7170_write(sd, 0x07, TR0MODE); | |
241 | /* udelay(10); */ | |
242 | break; | |
243 | ||
244 | case 1: | |
245 | adv7170_write(sd, 0x01, 0x00); | |
246 | adv7170_write(sd, 0x08, TR1PLAY); /* TR1 */ | |
247 | adv7170_write(sd, 0x02, 0x08); | |
248 | adv7170_write(sd, 0x07, TR0MODE | TR0RST); | |
249 | adv7170_write(sd, 0x07, TR0MODE); | |
250 | /* udelay(10); */ | |
1da177e4 LT |
251 | break; |
252 | ||
253 | default: | |
5325b427 | 254 | v4l2_dbg(1, debug, sd, "illegal input: %d\n", input); |
1da177e4 LT |
255 | return -EINVAL; |
256 | } | |
5325b427 HV |
257 | v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]); |
258 | encoder->input = input; | |
1da177e4 LT |
259 | return 0; |
260 | } | |
261 | ||
7d9ef21c HV |
262 | static int adv7170_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) |
263 | { | |
264 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
265 | ||
35631dcc | 266 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7170, 0); |
7d9ef21c HV |
267 | } |
268 | ||
1da177e4 LT |
269 | /* ----------------------------------------------------------------------- */ |
270 | ||
7d9ef21c HV |
271 | static const struct v4l2_subdev_core_ops adv7170_core_ops = { |
272 | .g_chip_ident = adv7170_g_chip_ident, | |
1da177e4 | 273 | }; |
1da177e4 | 274 | |
7d9ef21c HV |
275 | static const struct v4l2_subdev_video_ops adv7170_video_ops = { |
276 | .s_std_output = adv7170_s_std_output, | |
277 | .s_routing = adv7170_s_routing, | |
278 | }; | |
279 | ||
280 | static const struct v4l2_subdev_ops adv7170_ops = { | |
281 | .core = &adv7170_core_ops, | |
282 | .video = &adv7170_video_ops, | |
283 | }; | |
284 | ||
285 | /* ----------------------------------------------------------------------- */ | |
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; |
7d9ef21c | 291 | struct v4l2_subdev *sd; |
b9a21f84 | 292 | int i; |
1da177e4 LT |
293 | |
294 | /* Check if the adapter supports the needed features */ | |
b9a21f84 HV |
295 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
296 | return -ENODEV; | |
1da177e4 | 297 | |
b9a21f84 HV |
298 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
299 | client->addr << 1, client->adapter->name); | |
1da177e4 | 300 | |
7408187d | 301 | encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL); |
b9a21f84 | 302 | if (encoder == NULL) |
1da177e4 | 303 | return -ENOMEM; |
7d9ef21c HV |
304 | sd = &encoder->sd; |
305 | v4l2_i2c_subdev_init(sd, client, &adv7170_ops); | |
107063c6 | 306 | encoder->norm = V4L2_STD_NTSC; |
1da177e4 | 307 | encoder->input = 0; |
1da177e4 | 308 | |
7d9ef21c | 309 | i = adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC)); |
1da177e4 | 310 | if (i >= 0) { |
7d9ef21c HV |
311 | i = adv7170_write(sd, 0x07, TR0MODE | TR0RST); |
312 | i = adv7170_write(sd, 0x07, TR0MODE); | |
313 | i = adv7170_read(sd, 0x12); | |
314 | v4l2_dbg(1, debug, sd, "revision %d\n", i & 1); | |
1da177e4 | 315 | } |
b9a21f84 | 316 | if (i < 0) |
7d9ef21c | 317 | v4l2_dbg(1, debug, sd, "init error 0x%x\n", i); |
1da177e4 LT |
318 | return 0; |
319 | } | |
320 | ||
b9a21f84 | 321 | static int adv7170_remove(struct i2c_client *client) |
1da177e4 | 322 | { |
7d9ef21c HV |
323 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
324 | ||
325 | v4l2_device_unregister_subdev(sd); | |
326 | kfree(to_adv7170(sd)); | |
1da177e4 LT |
327 | return 0; |
328 | } | |
329 | ||
330 | /* ----------------------------------------------------------------------- */ | |
331 | ||
b9a21f84 HV |
332 | static const struct i2c_device_id adv7170_id[] = { |
333 | { "adv7170", 0 }, | |
334 | { "adv7171", 0 }, | |
335 | { } | |
336 | }; | |
337 | MODULE_DEVICE_TABLE(i2c, adv7170_id); | |
1da177e4 | 338 | |
b9a21f84 HV |
339 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { |
340 | .name = "adv7170", | |
b9a21f84 HV |
341 | .probe = adv7170_probe, |
342 | .remove = adv7170_remove, | |
343 | .id_table = adv7170_id, | |
1da177e4 | 344 | }; |