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fbe60daa MS |
1 | /* |
2 | bt866 - BT866 Digital Video Encoder (Rockwell Part) | |
3 | ||
4 | Copyright (C) 1999 Mike Bernson <mike@mlb.org> | |
5 | Copyright (C) 1998 Dave Perks <dperks@ibm.net> | |
6 | ||
7 | Modifications for LML33/DC10plus unified driver | |
8 | Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> | |
9 | ||
10 | This code was modify/ported from the saa7111 driver written | |
11 | by Dave Perks. | |
12 | ||
13 | This code was adapted for the bt866 by Christer Weinigel and ported | |
14 | to 2.6 by Martin Samuelsson. | |
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> | |
fbe60daa | 32 | #include <linux/types.h> |
c18fdcf6 HV |
33 | #include <linux/ioctl.h> |
34 | #include <asm/uaccess.h> | |
fbe60daa | 35 | #include <linux/i2c.h> |
c18fdcf6 | 36 | #include <linux/i2c-id.h> |
fbe60daa | 37 | #include <linux/videodev.h> |
fbe60daa | 38 | #include <linux/video_encoder.h> |
c18fdcf6 HV |
39 | #include <media/v4l2-common.h> |
40 | #include <media/v4l2-i2c-drv-legacy.h> | |
fbe60daa | 41 | |
c18fdcf6 HV |
42 | MODULE_DESCRIPTION("Brooktree-866 video encoder driver"); |
43 | MODULE_AUTHOR("Mike Bernson & Dave Perks"); | |
fbe60daa MS |
44 | MODULE_LICENSE("GPL"); |
45 | ||
c18fdcf6 HV |
46 | static int debug; |
47 | module_param(debug, int, 0); | |
48 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
fbe60daa MS |
49 | |
50 | /* ----------------------------------------------------------------------- */ | |
51 | ||
52 | struct bt866 { | |
c18fdcf6 | 53 | u8 reg[256]; |
fbe60daa MS |
54 | |
55 | int norm; | |
56 | int enable; | |
57 | int bright; | |
58 | int contrast; | |
59 | int hue; | |
60 | int sat; | |
61 | }; | |
62 | ||
c18fdcf6 HV |
63 | static int bt866_write(struct i2c_client *client, u8 subaddr, u8 data) |
64 | { | |
65 | struct bt866 *encoder = i2c_get_clientdata(client); | |
66 | u8 buffer[2]; | |
67 | int err; | |
68 | ||
69 | buffer[0] = subaddr; | |
70 | buffer[1] = data; | |
71 | ||
72 | encoder->reg[subaddr] = data; | |
73 | ||
74 | v4l_dbg(1, debug, client, "write 0x%02x = 0x%02x\n", subaddr, data); | |
75 | ||
76 | for (err = 0; err < 3;) { | |
77 | if (i2c_master_send(client, buffer, 2) == 2) | |
78 | break; | |
79 | err++; | |
80 | v4l_warn(client, "error #%d writing to 0x%02x\n", | |
81 | err, subaddr); | |
82 | schedule_timeout_interruptible(msecs_to_jiffies(100)); | |
83 | } | |
84 | if (err == 3) { | |
85 | v4l_warn(client, "giving up\n"); | |
86 | return -1; | |
87 | } | |
88 | ||
89 | return 0; | |
90 | } | |
fbe60daa | 91 | |
c18fdcf6 | 92 | static int bt866_command(struct i2c_client *client, unsigned cmd, void *arg) |
fbe60daa | 93 | { |
c18fdcf6 HV |
94 | struct bt866 *encoder = i2c_get_clientdata(client); |
95 | ||
fbe60daa MS |
96 | switch (cmd) { |
97 | case ENCODER_GET_CAPABILITIES: | |
98 | { | |
99 | struct video_encoder_capability *cap = arg; | |
100 | ||
c18fdcf6 | 101 | v4l_dbg(1, debug, client, "get capabilities\n"); |
fbe60daa MS |
102 | |
103 | cap->flags | |
104 | = VIDEO_ENCODER_PAL | |
105 | | VIDEO_ENCODER_NTSC | |
106 | | VIDEO_ENCODER_CCIR; | |
107 | cap->inputs = 2; | |
108 | cap->outputs = 1; | |
c18fdcf6 | 109 | break; |
fbe60daa | 110 | } |
fbe60daa MS |
111 | |
112 | case ENCODER_SET_NORM: | |
113 | { | |
114 | int *iarg = arg; | |
115 | ||
c18fdcf6 | 116 | v4l_dbg(1, debug, client, "set norm %d\n", *iarg); |
fbe60daa MS |
117 | |
118 | switch (*iarg) { | |
fbe60daa MS |
119 | case VIDEO_MODE_NTSC: |
120 | break; | |
121 | ||
122 | case VIDEO_MODE_PAL: | |
123 | break; | |
124 | ||
125 | default: | |
126 | return -EINVAL; | |
fbe60daa MS |
127 | } |
128 | encoder->norm = *iarg; | |
c18fdcf6 | 129 | break; |
fbe60daa | 130 | } |
fbe60daa MS |
131 | |
132 | case ENCODER_SET_INPUT: | |
133 | { | |
134 | int *iarg = arg; | |
135 | static const __u8 init[] = { | |
136 | 0xc8, 0xcc, /* CRSCALE */ | |
137 | 0xca, 0x91, /* CBSCALE */ | |
138 | 0xcc, 0x24, /* YC16 | OSDNUM */ | |
139 | 0xda, 0x00, /* */ | |
140 | 0xdc, 0x24, /* SETMODE | PAL */ | |
141 | 0xde, 0x02, /* EACTIVE */ | |
142 | ||
143 | /* overlay colors */ | |
144 | 0x70, 0xEB, 0x90, 0x80, 0xB0, 0x80, /* white */ | |
145 | 0x72, 0xA2, 0x92, 0x8E, 0xB2, 0x2C, /* yellow */ | |
146 | 0x74, 0x83, 0x94, 0x2C, 0xB4, 0x9C, /* cyan */ | |
147 | 0x76, 0x70, 0x96, 0x3A, 0xB6, 0x48, /* green */ | |
148 | 0x78, 0x54, 0x98, 0xC6, 0xB8, 0xB8, /* magenta */ | |
149 | 0x7A, 0x41, 0x9A, 0xD4, 0xBA, 0x64, /* red */ | |
150 | 0x7C, 0x23, 0x9C, 0x72, 0xBC, 0xD4, /* blue */ | |
151 | 0x7E, 0x10, 0x9E, 0x80, 0xBE, 0x80, /* black */ | |
152 | ||
153 | 0x60, 0xEB, 0x80, 0x80, 0xc0, 0x80, /* white */ | |
154 | 0x62, 0xA2, 0x82, 0x8E, 0xc2, 0x2C, /* yellow */ | |
155 | 0x64, 0x83, 0x84, 0x2C, 0xc4, 0x9C, /* cyan */ | |
156 | 0x66, 0x70, 0x86, 0x3A, 0xc6, 0x48, /* green */ | |
157 | 0x68, 0x54, 0x88, 0xC6, 0xc8, 0xB8, /* magenta */ | |
158 | 0x6A, 0x41, 0x8A, 0xD4, 0xcA, 0x64, /* red */ | |
159 | 0x6C, 0x23, 0x8C, 0x72, 0xcC, 0xD4, /* blue */ | |
160 | 0x6E, 0x10, 0x8E, 0x80, 0xcE, 0x80, /* black */ | |
161 | }; | |
162 | int i; | |
163 | u8 val; | |
164 | ||
165 | for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2) | |
c18fdcf6 | 166 | bt866_write(client, init[i], init[i+1]); |
fbe60daa MS |
167 | |
168 | val = encoder->reg[0xdc]; | |
169 | ||
170 | if (*iarg == 0) | |
171 | val |= 0x40; /* CBSWAP */ | |
172 | else | |
173 | val &= ~0x40; /* !CBSWAP */ | |
174 | ||
c18fdcf6 | 175 | bt866_write(client, 0xdc, val); |
fbe60daa MS |
176 | |
177 | val = encoder->reg[0xcc]; | |
178 | if (*iarg == 2) | |
179 | val |= 0x01; /* OSDBAR */ | |
180 | else | |
181 | val &= ~0x01; /* !OSDBAR */ | |
c18fdcf6 | 182 | bt866_write(client, 0xcc, val); |
fbe60daa | 183 | |
c18fdcf6 | 184 | v4l_dbg(1, debug, client, "set input %d\n", *iarg); |
fbe60daa MS |
185 | |
186 | switch (*iarg) { | |
187 | case 0: | |
188 | break; | |
189 | case 1: | |
190 | break; | |
191 | default: | |
192 | return -EINVAL; | |
fbe60daa | 193 | } |
c18fdcf6 | 194 | break; |
fbe60daa | 195 | } |
fbe60daa MS |
196 | |
197 | case ENCODER_SET_OUTPUT: | |
198 | { | |
199 | int *iarg = arg; | |
200 | ||
c18fdcf6 | 201 | v4l_dbg(1, debug, client, "set output %d\n", *iarg); |
fbe60daa MS |
202 | |
203 | /* not much choice of outputs */ | |
204 | if (*iarg != 0) | |
205 | return -EINVAL; | |
c18fdcf6 | 206 | break; |
fbe60daa | 207 | } |
fbe60daa MS |
208 | |
209 | case ENCODER_ENABLE_OUTPUT: | |
210 | { | |
211 | int *iarg = arg; | |
212 | encoder->enable = !!*iarg; | |
213 | ||
c18fdcf6 HV |
214 | v4l_dbg(1, debug, client, "enable output %d\n", encoder->enable); |
215 | break; | |
fbe60daa | 216 | } |
fbe60daa MS |
217 | |
218 | case 4711: | |
219 | { | |
220 | int *iarg = arg; | |
221 | __u8 val; | |
222 | ||
c18fdcf6 | 223 | v4l_dbg(1, debug, client, "square %d\n", *iarg); |
fbe60daa MS |
224 | |
225 | val = encoder->reg[0xdc]; | |
226 | if (*iarg) | |
227 | val |= 1; /* SQUARE */ | |
228 | else | |
229 | val &= ~1; /* !SQUARE */ | |
c18fdcf6 | 230 | bt866_write(client, 0xdc, val); |
fbe60daa MS |
231 | break; |
232 | } | |
233 | ||
234 | default: | |
235 | return -EINVAL; | |
236 | } | |
237 | ||
238 | return 0; | |
239 | } | |
240 | ||
c18fdcf6 | 241 | static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END }; |
fbe60daa | 242 | |
c18fdcf6 | 243 | I2C_CLIENT_INSMOD; |
fbe60daa | 244 | |
c18fdcf6 HV |
245 | static int bt866_probe(struct i2c_client *client, |
246 | const struct i2c_device_id *id) | |
fbe60daa MS |
247 | { |
248 | struct bt866 *encoder; | |
fbe60daa | 249 | |
c18fdcf6 HV |
250 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
251 | client->addr << 1, client->adapter->name); | |
fbe60daa MS |
252 | |
253 | encoder = kzalloc(sizeof(*encoder), GFP_KERNEL); | |
c18fdcf6 | 254 | if (encoder == NULL) |
fbe60daa | 255 | return -ENOMEM; |
fbe60daa MS |
256 | |
257 | i2c_set_clientdata(client, encoder); | |
fbe60daa MS |
258 | return 0; |
259 | } | |
260 | ||
c18fdcf6 | 261 | static int bt866_remove(struct i2c_client *client) |
fbe60daa | 262 | { |
c18fdcf6 | 263 | kfree(i2c_get_clientdata(client)); |
fbe60daa MS |
264 | return 0; |
265 | } | |
266 | ||
c18fdcf6 | 267 | static int bt866_legacy_probe(struct i2c_adapter *adapter) |
fbe60daa | 268 | { |
c18fdcf6 | 269 | return adapter->id == I2C_HW_B_ZR36067; |
fbe60daa MS |
270 | } |
271 | ||
c18fdcf6 HV |
272 | static const struct i2c_device_id bt866_id[] = { |
273 | { "bt866", 0 }, | |
274 | { } | |
275 | }; | |
276 | MODULE_DEVICE_TABLE(i2c, bt866_id); | |
277 | ||
278 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { | |
279 | .name = "bt866", | |
280 | .driverid = I2C_DRIVERID_BT866, | |
281 | .command = bt866_command, | |
282 | .probe = bt866_probe, | |
283 | .remove = bt866_remove, | |
284 | .legacy_probe = bt866_legacy_probe, | |
285 | .id_table = bt866_id, | |
286 | }; |