Commit | Line | Data |
---|---|---|
add953ce HV |
1 | /* |
2 | * upd64031A - NEC Electronics Ghost Reduction for NTSC in Japan | |
3 | * | |
4 | * 2003 by T.Adachi <tadachi@tadachi-net.com> | |
5 | * 2003 by Takeru KOMORIYA <komoriya@paken.org> | |
6 | * 2006 by Hans Verkuil <hverkuil@xs4all.nl> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | */ | |
22 | ||
23 | ||
add953ce HV |
24 | #include <linux/module.h> |
25 | #include <linux/kernel.h> | |
26 | #include <linux/i2c.h> | |
27 | #include <linux/videodev2.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
09abd506 | 29 | #include <media/v4l2-device.h> |
add953ce HV |
30 | #include <media/upd64031a.h> |
31 | ||
79f998a7 | 32 | /* --------------------- read registers functions define -------------------- */ |
add953ce HV |
33 | |
34 | /* bit masks */ | |
35 | #define GR_MODE_MASK 0xc0 | |
36 | #define DIRECT_3DYCS_CONNECT_MASK 0xc0 | |
37 | #define SYNC_CIRCUIT_MASK 0xa0 | |
38 | ||
79f998a7 | 39 | /* -------------------------------------------------------------------------- */ |
add953ce HV |
40 | |
41 | MODULE_DESCRIPTION("uPD64031A driver"); | |
42 | MODULE_AUTHOR("T. Adachi, Takeru KOMORIYA, Hans Verkuil"); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
79f998a7 | 45 | static int debug; |
add953ce HV |
46 | module_param(debug, int, 0644); |
47 | ||
48 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
49 | ||
add953ce HV |
50 | |
51 | enum { | |
52 | R00 = 0, R01, R02, R03, R04, | |
53 | R05, R06, R07, R08, R09, | |
54 | R0A, R0B, R0C, R0D, R0E, R0F, | |
55 | /* unused registers | |
56 | R10, R11, R12, R13, R14, | |
57 | R15, R16, R17, | |
58 | */ | |
59 | TOT_REGS | |
60 | }; | |
61 | ||
62 | struct upd64031a_state { | |
09abd506 | 63 | struct v4l2_subdev sd; |
add953ce HV |
64 | u8 regs[TOT_REGS]; |
65 | u8 gr_mode; | |
66 | u8 direct_3dycs_connect; | |
67 | u8 ext_comp_sync; | |
68 | u8 ext_vert_sync; | |
69 | }; | |
70 | ||
09abd506 HV |
71 | static inline struct upd64031a_state *to_state(struct v4l2_subdev *sd) |
72 | { | |
73 | return container_of(sd, struct upd64031a_state, sd); | |
74 | } | |
75 | ||
add953ce HV |
76 | static u8 upd64031a_init[] = { |
77 | 0x00, 0xb8, 0x48, 0xd2, 0xe6, | |
78 | 0x03, 0x10, 0x0b, 0xaf, 0x7f, | |
79 | 0x00, 0x00, 0x1d, 0x5e, 0x00, | |
80 | 0xd0 | |
81 | }; | |
82 | ||
83 | /* ------------------------------------------------------------------------ */ | |
84 | ||
09abd506 | 85 | static u8 upd64031a_read(struct v4l2_subdev *sd, u8 reg) |
add953ce | 86 | { |
09abd506 | 87 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
add953ce HV |
88 | u8 buf[2]; |
89 | ||
90 | if (reg >= sizeof(buf)) | |
91 | return 0xff; | |
92 | i2c_master_recv(client, buf, 2); | |
93 | return buf[reg]; | |
94 | } | |
95 | ||
96 | /* ------------------------------------------------------------------------ */ | |
97 | ||
09abd506 | 98 | static void upd64031a_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
add953ce | 99 | { |
09abd506 | 100 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
add953ce HV |
101 | u8 buf[2]; |
102 | ||
103 | buf[0] = reg; | |
104 | buf[1] = val; | |
09abd506 | 105 | v4l2_dbg(1, debug, sd, "write reg: %02X val: %02X\n", reg, val); |
add953ce | 106 | if (i2c_master_send(client, buf, 2) != 2) |
09abd506 | 107 | v4l2_err(sd, "I/O error write 0x%02x/0x%02x\n", reg, val); |
add953ce HV |
108 | } |
109 | ||
110 | /* ------------------------------------------------------------------------ */ | |
111 | ||
112 | /* The input changed due to new input or channel changed */ | |
b530a447 | 113 | static int upd64031a_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq) |
add953ce | 114 | { |
09abd506 | 115 | struct upd64031a_state *state = to_state(sd); |
add953ce HV |
116 | u8 reg = state->regs[R00]; |
117 | ||
09abd506 HV |
118 | v4l2_dbg(1, debug, sd, "changed input or channel\n"); |
119 | upd64031a_write(sd, R00, reg | 0x10); | |
120 | upd64031a_write(sd, R00, reg & ~0x10); | |
121 | return 0; | |
add953ce HV |
122 | } |
123 | ||
124 | /* ------------------------------------------------------------------------ */ | |
125 | ||
5325b427 HV |
126 | static int upd64031a_s_routing(struct v4l2_subdev *sd, |
127 | u32 input, u32 output, u32 config) | |
09abd506 HV |
128 | { |
129 | struct upd64031a_state *state = to_state(sd); | |
130 | u8 r00, r05, r08; | |
131 | ||
5325b427 HV |
132 | state->gr_mode = (input & 3) << 6; |
133 | state->direct_3dycs_connect = (input & 0xc) << 4; | |
09abd506 | 134 | state->ext_comp_sync = |
5325b427 | 135 | (input & UPD64031A_COMPOSITE_EXTERNAL) << 1; |
09abd506 | 136 | state->ext_vert_sync = |
5325b427 | 137 | (input & UPD64031A_VERTICAL_EXTERNAL) << 2; |
09abd506 HV |
138 | r00 = (state->regs[R00] & ~GR_MODE_MASK) | state->gr_mode; |
139 | r05 = (state->regs[R00] & ~SYNC_CIRCUIT_MASK) | | |
140 | state->ext_comp_sync | state->ext_vert_sync; | |
141 | r08 = (state->regs[R08] & ~DIRECT_3DYCS_CONNECT_MASK) | | |
142 | state->direct_3dycs_connect; | |
143 | upd64031a_write(sd, R00, r00); | |
144 | upd64031a_write(sd, R05, r05); | |
145 | upd64031a_write(sd, R08, r08); | |
146 | return upd64031a_s_frequency(sd, NULL); | |
147 | } | |
148 | ||
09abd506 HV |
149 | static int upd64031a_log_status(struct v4l2_subdev *sd) |
150 | { | |
151 | v4l2_info(sd, "Status: SA00=0x%02x SA01=0x%02x\n", | |
152 | upd64031a_read(sd, 0), upd64031a_read(sd, 1)); | |
153 | return 0; | |
154 | } | |
155 | ||
156 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
aecde8b5 | 157 | static int upd64031a_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) |
09abd506 | 158 | { |
09abd506 | 159 | reg->val = upd64031a_read(sd, reg->reg & 0xff); |
aecde8b5 | 160 | reg->size = 1; |
09abd506 HV |
161 | return 0; |
162 | } | |
163 | ||
977ba3b1 | 164 | static int upd64031a_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) |
09abd506 | 165 | { |
09abd506 HV |
166 | upd64031a_write(sd, reg->reg & 0xff, reg->val & 0xff); |
167 | return 0; | |
168 | } | |
169 | #endif | |
170 | ||
09abd506 | 171 | /* ----------------------------------------------------------------------- */ |
add953ce | 172 | |
09abd506 HV |
173 | static const struct v4l2_subdev_core_ops upd64031a_core_ops = { |
174 | .log_status = upd64031a_log_status, | |
add953ce | 175 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
09abd506 HV |
176 | .g_register = upd64031a_g_register, |
177 | .s_register = upd64031a_s_register, | |
add953ce | 178 | #endif |
09abd506 | 179 | }; |
add953ce | 180 | |
09abd506 HV |
181 | static const struct v4l2_subdev_tuner_ops upd64031a_tuner_ops = { |
182 | .s_frequency = upd64031a_s_frequency, | |
183 | }; | |
74cab31c | 184 | |
09abd506 HV |
185 | static const struct v4l2_subdev_video_ops upd64031a_video_ops = { |
186 | .s_routing = upd64031a_s_routing, | |
187 | }; | |
188 | ||
189 | static const struct v4l2_subdev_ops upd64031a_ops = { | |
190 | .core = &upd64031a_core_ops, | |
191 | .tuner = &upd64031a_tuner_ops, | |
192 | .video = &upd64031a_video_ops, | |
193 | }; | |
add953ce HV |
194 | |
195 | /* ------------------------------------------------------------------------ */ | |
196 | ||
197 | /* i2c implementation */ | |
198 | ||
d2653e92 JD |
199 | static int upd64031a_probe(struct i2c_client *client, |
200 | const struct i2c_device_id *id) | |
add953ce | 201 | { |
add953ce | 202 | struct upd64031a_state *state; |
09abd506 | 203 | struct v4l2_subdev *sd; |
add953ce HV |
204 | int i; |
205 | ||
2b14e031 | 206 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
188f3457 | 207 | return -EIO; |
add953ce | 208 | |
79f998a7 HV |
209 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
210 | client->addr << 1, client->adapter->name); | |
add953ce | 211 | |
c02b211d | 212 | state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL); |
79f998a7 | 213 | if (state == NULL) |
add953ce | 214 | return -ENOMEM; |
09abd506 HV |
215 | sd = &state->sd; |
216 | v4l2_i2c_subdev_init(sd, client, &upd64031a_ops); | |
add953ce HV |
217 | memcpy(state->regs, upd64031a_init, sizeof(state->regs)); |
218 | state->gr_mode = UPD64031A_GR_ON << 6; | |
219 | state->direct_3dycs_connect = UPD64031A_3DYCS_COMPOSITE << 4; | |
220 | state->ext_comp_sync = state->ext_vert_sync = 0; | |
79f998a7 | 221 | for (i = 0; i < TOT_REGS; i++) |
09abd506 | 222 | upd64031a_write(sd, i, state->regs[i]); |
add953ce HV |
223 | return 0; |
224 | } | |
225 | ||
2b14e031 | 226 | static int upd64031a_remove(struct i2c_client *client) |
add953ce | 227 | { |
09abd506 HV |
228 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
229 | ||
230 | v4l2_device_unregister_subdev(sd); | |
add953ce HV |
231 | return 0; |
232 | } | |
233 | ||
234 | /* ----------------------------------------------------------------------- */ | |
235 | ||
af294867 JD |
236 | static const struct i2c_device_id upd64031a_id[] = { |
237 | { "upd64031a", 0 }, | |
238 | { } | |
239 | }; | |
240 | MODULE_DEVICE_TABLE(i2c, upd64031a_id); | |
2b14e031 | 241 | |
962961ef HV |
242 | static struct i2c_driver upd64031a_driver = { |
243 | .driver = { | |
244 | .owner = THIS_MODULE, | |
245 | .name = "upd64031a", | |
246 | }, | |
247 | .probe = upd64031a_probe, | |
248 | .remove = upd64031a_remove, | |
249 | .id_table = upd64031a_id, | |
add953ce | 250 | }; |
962961ef | 251 | |
c6e8d86f | 252 | module_i2c_driver(upd64031a_driver); |