Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 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 | |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 24 | #include <linux/module.h> |
| 25 | #include <linux/kernel.h> |
| 26 | #include <linux/i2c.h> |
| 27 | #include <linux/videodev2.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 28 | #include <linux/slab.h> |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 29 | #include <media/v4l2-device.h> |
Hans Verkuil | 74cab31 | 2007-04-27 12:31:26 -0300 | [diff] [blame] | 30 | #include <media/v4l2-chip-ident.h> |
Hans Verkuil | f69d419 | 2007-12-12 07:24:27 -0300 | [diff] [blame] | 31 | #include <media/v4l2-i2c-drv.h> |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 32 | #include <media/upd64031a.h> |
| 33 | |
Hans Verkuil | 79f998a | 2007-12-12 07:34:15 -0300 | [diff] [blame] | 34 | /* --------------------- read registers functions define -------------------- */ |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 35 | |
| 36 | /* bit masks */ |
| 37 | #define GR_MODE_MASK 0xc0 |
| 38 | #define DIRECT_3DYCS_CONNECT_MASK 0xc0 |
| 39 | #define SYNC_CIRCUIT_MASK 0xa0 |
| 40 | |
Hans Verkuil | 79f998a | 2007-12-12 07:34:15 -0300 | [diff] [blame] | 41 | /* -------------------------------------------------------------------------- */ |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 42 | |
| 43 | MODULE_DESCRIPTION("uPD64031A driver"); |
| 44 | MODULE_AUTHOR("T. Adachi, Takeru KOMORIYA, Hans Verkuil"); |
| 45 | MODULE_LICENSE("GPL"); |
| 46 | |
Hans Verkuil | 79f998a | 2007-12-12 07:34:15 -0300 | [diff] [blame] | 47 | static int debug; |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 48 | module_param(debug, int, 0644); |
| 49 | |
| 50 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); |
| 51 | |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 52 | |
| 53 | enum { |
| 54 | R00 = 0, R01, R02, R03, R04, |
| 55 | R05, R06, R07, R08, R09, |
| 56 | R0A, R0B, R0C, R0D, R0E, R0F, |
| 57 | /* unused registers |
| 58 | R10, R11, R12, R13, R14, |
| 59 | R15, R16, R17, |
| 60 | */ |
| 61 | TOT_REGS |
| 62 | }; |
| 63 | |
| 64 | struct upd64031a_state { |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 65 | struct v4l2_subdev sd; |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 66 | u8 regs[TOT_REGS]; |
| 67 | u8 gr_mode; |
| 68 | u8 direct_3dycs_connect; |
| 69 | u8 ext_comp_sync; |
| 70 | u8 ext_vert_sync; |
| 71 | }; |
| 72 | |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 73 | static inline struct upd64031a_state *to_state(struct v4l2_subdev *sd) |
| 74 | { |
| 75 | return container_of(sd, struct upd64031a_state, sd); |
| 76 | } |
| 77 | |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 78 | static u8 upd64031a_init[] = { |
| 79 | 0x00, 0xb8, 0x48, 0xd2, 0xe6, |
| 80 | 0x03, 0x10, 0x0b, 0xaf, 0x7f, |
| 81 | 0x00, 0x00, 0x1d, 0x5e, 0x00, |
| 82 | 0xd0 |
| 83 | }; |
| 84 | |
| 85 | /* ------------------------------------------------------------------------ */ |
| 86 | |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 87 | static u8 upd64031a_read(struct v4l2_subdev *sd, u8 reg) |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 88 | { |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 89 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 90 | u8 buf[2]; |
| 91 | |
| 92 | if (reg >= sizeof(buf)) |
| 93 | return 0xff; |
| 94 | i2c_master_recv(client, buf, 2); |
| 95 | return buf[reg]; |
| 96 | } |
| 97 | |
| 98 | /* ------------------------------------------------------------------------ */ |
| 99 | |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 100 | static void upd64031a_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 101 | { |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 102 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 103 | u8 buf[2]; |
| 104 | |
| 105 | buf[0] = reg; |
| 106 | buf[1] = val; |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 107 | v4l2_dbg(1, debug, sd, "write reg: %02X val: %02X\n", reg, val); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 108 | if (i2c_master_send(client, buf, 2) != 2) |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 109 | v4l2_err(sd, "I/O error write 0x%02x/0x%02x\n", reg, val); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 110 | } |
| 111 | |
| 112 | /* ------------------------------------------------------------------------ */ |
| 113 | |
| 114 | /* The input changed due to new input or channel changed */ |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 115 | static int upd64031a_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq) |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 116 | { |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 117 | struct upd64031a_state *state = to_state(sd); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 118 | u8 reg = state->regs[R00]; |
| 119 | |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 120 | v4l2_dbg(1, debug, sd, "changed input or channel\n"); |
| 121 | upd64031a_write(sd, R00, reg | 0x10); |
| 122 | upd64031a_write(sd, R00, reg & ~0x10); |
| 123 | return 0; |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | /* ------------------------------------------------------------------------ */ |
| 127 | |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 128 | static int upd64031a_s_routing(struct v4l2_subdev *sd, |
| 129 | u32 input, u32 output, u32 config) |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 130 | { |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 131 | struct upd64031a_state *state = to_state(sd); |
| 132 | u8 r00, r05, r08; |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 133 | |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 134 | state->gr_mode = (input & 3) << 6; |
| 135 | state->direct_3dycs_connect = (input & 0xc) << 4; |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 136 | state->ext_comp_sync = |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 137 | (input & UPD64031A_COMPOSITE_EXTERNAL) << 1; |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 138 | state->ext_vert_sync = |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 139 | (input & UPD64031A_VERTICAL_EXTERNAL) << 2; |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 140 | r00 = (state->regs[R00] & ~GR_MODE_MASK) | state->gr_mode; |
| 141 | r05 = (state->regs[R00] & ~SYNC_CIRCUIT_MASK) | |
| 142 | state->ext_comp_sync | state->ext_vert_sync; |
| 143 | r08 = (state->regs[R08] & ~DIRECT_3DYCS_CONNECT_MASK) | |
| 144 | state->direct_3dycs_connect; |
| 145 | upd64031a_write(sd, R00, r00); |
| 146 | upd64031a_write(sd, R05, r05); |
| 147 | upd64031a_write(sd, R08, r08); |
| 148 | return upd64031a_s_frequency(sd, NULL); |
| 149 | } |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 150 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 151 | static int upd64031a_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 152 | { |
| 153 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 154 | |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 155 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_UPD64031A, 0); |
| 156 | } |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 157 | |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 158 | static int upd64031a_log_status(struct v4l2_subdev *sd) |
| 159 | { |
| 160 | v4l2_info(sd, "Status: SA00=0x%02x SA01=0x%02x\n", |
| 161 | upd64031a_read(sd, 0), upd64031a_read(sd, 1)); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 162 | return 0; |
| 163 | } |
| 164 | |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 165 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 166 | static int upd64031a_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 167 | { |
| 168 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 169 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 170 | if (!v4l2_chip_match_i2c_client(client, ®->match)) |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 171 | return -EINVAL; |
| 172 | if (!capable(CAP_SYS_ADMIN)) |
| 173 | return -EPERM; |
| 174 | reg->val = upd64031a_read(sd, reg->reg & 0xff); |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 175 | reg->size = 1; |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 176 | return 0; |
| 177 | } |
| 178 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 179 | static int upd64031a_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 180 | { |
| 181 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 182 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 183 | if (!v4l2_chip_match_i2c_client(client, ®->match)) |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 184 | return -EINVAL; |
| 185 | if (!capable(CAP_SYS_ADMIN)) |
| 186 | return -EPERM; |
| 187 | upd64031a_write(sd, reg->reg & 0xff, reg->val & 0xff); |
| 188 | return 0; |
| 189 | } |
| 190 | #endif |
| 191 | |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 192 | /* ----------------------------------------------------------------------- */ |
| 193 | |
| 194 | static const struct v4l2_subdev_core_ops upd64031a_core_ops = { |
| 195 | .log_status = upd64031a_log_status, |
| 196 | .g_chip_ident = upd64031a_g_chip_ident, |
| 197 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 198 | .g_register = upd64031a_g_register, |
| 199 | .s_register = upd64031a_s_register, |
| 200 | #endif |
| 201 | }; |
| 202 | |
| 203 | static const struct v4l2_subdev_tuner_ops upd64031a_tuner_ops = { |
| 204 | .s_frequency = upd64031a_s_frequency, |
| 205 | }; |
| 206 | |
| 207 | static const struct v4l2_subdev_video_ops upd64031a_video_ops = { |
| 208 | .s_routing = upd64031a_s_routing, |
| 209 | }; |
| 210 | |
| 211 | static const struct v4l2_subdev_ops upd64031a_ops = { |
| 212 | .core = &upd64031a_core_ops, |
| 213 | .tuner = &upd64031a_tuner_ops, |
| 214 | .video = &upd64031a_video_ops, |
| 215 | }; |
| 216 | |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 217 | /* ------------------------------------------------------------------------ */ |
| 218 | |
| 219 | /* i2c implementation */ |
| 220 | |
Jean Delvare | d2653e9 | 2008-04-29 23:11:39 +0200 | [diff] [blame] | 221 | static int upd64031a_probe(struct i2c_client *client, |
| 222 | const struct i2c_device_id *id) |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 223 | { |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 224 | struct upd64031a_state *state; |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 225 | struct v4l2_subdev *sd; |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 226 | int i; |
| 227 | |
Hans Verkuil | 2b14e03 | 2007-09-14 04:58:31 -0300 | [diff] [blame] | 228 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
Hans Verkuil | 188f345 | 2007-09-16 10:47:15 -0300 | [diff] [blame] | 229 | return -EIO; |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 230 | |
Hans Verkuil | 79f998a | 2007-12-12 07:34:15 -0300 | [diff] [blame] | 231 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
| 232 | client->addr << 1, client->adapter->name); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 233 | |
| 234 | state = kmalloc(sizeof(struct upd64031a_state), GFP_KERNEL); |
Hans Verkuil | 79f998a | 2007-12-12 07:34:15 -0300 | [diff] [blame] | 235 | if (state == NULL) |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 236 | return -ENOMEM; |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 237 | sd = &state->sd; |
| 238 | v4l2_i2c_subdev_init(sd, client, &upd64031a_ops); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 239 | memcpy(state->regs, upd64031a_init, sizeof(state->regs)); |
| 240 | state->gr_mode = UPD64031A_GR_ON << 6; |
| 241 | state->direct_3dycs_connect = UPD64031A_3DYCS_COMPOSITE << 4; |
| 242 | state->ext_comp_sync = state->ext_vert_sync = 0; |
Hans Verkuil | 79f998a | 2007-12-12 07:34:15 -0300 | [diff] [blame] | 243 | for (i = 0; i < TOT_REGS; i++) |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 244 | upd64031a_write(sd, i, state->regs[i]); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 245 | return 0; |
| 246 | } |
| 247 | |
Hans Verkuil | 2b14e03 | 2007-09-14 04:58:31 -0300 | [diff] [blame] | 248 | static int upd64031a_remove(struct i2c_client *client) |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 249 | { |
Hans Verkuil | 09abd50 | 2008-11-29 12:59:33 -0300 | [diff] [blame] | 250 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
| 251 | |
| 252 | v4l2_device_unregister_subdev(sd); |
| 253 | kfree(to_state(sd)); |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | /* ----------------------------------------------------------------------- */ |
| 258 | |
Jean Delvare | af29486 | 2008-05-18 20:49:40 +0200 | [diff] [blame] | 259 | static const struct i2c_device_id upd64031a_id[] = { |
| 260 | { "upd64031a", 0 }, |
| 261 | { } |
| 262 | }; |
| 263 | MODULE_DEVICE_TABLE(i2c, upd64031a_id); |
Hans Verkuil | 2b14e03 | 2007-09-14 04:58:31 -0300 | [diff] [blame] | 264 | |
| 265 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { |
| 266 | .name = "upd64031a", |
Hans Verkuil | 2b14e03 | 2007-09-14 04:58:31 -0300 | [diff] [blame] | 267 | .probe = upd64031a_probe, |
| 268 | .remove = upd64031a_remove, |
Jean Delvare | af29486 | 2008-05-18 20:49:40 +0200 | [diff] [blame] | 269 | .id_table = upd64031a_id, |
Hans Verkuil | add953c | 2006-03-29 14:56:17 -0300 | [diff] [blame] | 270 | }; |