Thomas Gleixner | c942fdd | 2019-05-27 08:55:06 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 2 | /* |
| 3 | * wm8775 - driver version 0.0.1 |
| 4 | * |
| 5 | * Copyright (C) 2004 Ulf Eklund <ivtv at eklund.to> |
| 6 | * |
| 7 | * Based on saa7115 driver |
| 8 | * |
Hans Verkuil | 1f4b336 | 2005-11-13 16:08:05 -0800 | [diff] [blame] | 9 | * Copyright (C) 2005 Hans Verkuil <hverkuil@xs4all.nl> |
| 10 | * - Cleanup |
| 11 | * - V4L2 API update |
| 12 | * - sound fixes |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 13 | */ |
| 14 | |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 15 | #include <linux/module.h> |
| 16 | #include <linux/types.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 17 | #include <linux/slab.h> |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 18 | #include <linux/ioctl.h> |
Linus Torvalds | 7c0f6ba | 2016-12-24 11:46:01 -0800 | [diff] [blame] | 19 | #include <linux/uaccess.h> |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 20 | #include <linux/i2c.h> |
Hans Verkuil | 33b687c | 2008-07-25 05:32:50 -0300 | [diff] [blame] | 21 | #include <linux/videodev2.h> |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 22 | #include <media/v4l2-device.h> |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 23 | #include <media/v4l2-ctrls.h> |
Mauro Carvalho Chehab | b5dcee22 | 2015-11-10 12:01:44 -0200 | [diff] [blame] | 24 | #include <media/i2c/wm8775.h> |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 25 | |
| 26 | MODULE_DESCRIPTION("wm8775 driver"); |
Hans Verkuil | 1f4b336 | 2005-11-13 16:08:05 -0800 | [diff] [blame] | 27 | MODULE_AUTHOR("Ulf Eklund, Hans Verkuil"); |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 28 | MODULE_LICENSE("GPL"); |
| 29 | |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 30 | |
Hans Verkuil | d9a53aa | 2007-09-13 11:08:25 -0300 | [diff] [blame] | 31 | |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 32 | /* ----------------------------------------------------------------------- */ |
| 33 | |
| 34 | enum { |
| 35 | R7 = 7, R11 = 11, |
| 36 | R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R23 = 23, |
| 37 | TOT_REGS |
| 38 | }; |
| 39 | |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 40 | #define ALC_HOLD 0x85 /* R17: use zero cross detection, ALC hold time 42.6 ms */ |
| 41 | #define ALC_EN 0x100 /* R17: ALC enable */ |
| 42 | |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 43 | struct wm8775_state { |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 44 | struct v4l2_subdev sd; |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 45 | struct v4l2_ctrl_handler hdl; |
| 46 | struct v4l2_ctrl *mute; |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 47 | struct v4l2_ctrl *vol; |
| 48 | struct v4l2_ctrl *bal; |
| 49 | struct v4l2_ctrl *loud; |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 50 | u8 input; /* Last selected input (0-0xf) */ |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 51 | }; |
| 52 | |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 53 | static inline struct wm8775_state *to_state(struct v4l2_subdev *sd) |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 54 | { |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 55 | return container_of(sd, struct wm8775_state, sd); |
| 56 | } |
| 57 | |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 58 | static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) |
| 59 | { |
| 60 | return &container_of(ctrl->handler, struct wm8775_state, hdl)->sd; |
| 61 | } |
| 62 | |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 63 | static int wm8775_write(struct v4l2_subdev *sd, int reg, u16 val) |
| 64 | { |
| 65 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 66 | int i; |
| 67 | |
| 68 | if (reg < 0 || reg >= TOT_REGS) { |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 69 | v4l2_err(sd, "Invalid register R%d\n", reg); |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 70 | return -1; |
| 71 | } |
| 72 | |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 73 | for (i = 0; i < 3; i++) |
| 74 | if (i2c_smbus_write_byte_data(client, |
| 75 | (reg << 1) | (val >> 8), val & 0xff) == 0) |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 76 | return 0; |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 77 | v4l2_err(sd, "I2C: cannot write %03x to register R%d\n", val, reg); |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 78 | return -1; |
| 79 | } |
| 80 | |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 81 | static void wm8775_set_audio(struct v4l2_subdev *sd, int quietly) |
| 82 | { |
| 83 | struct wm8775_state *state = to_state(sd); |
| 84 | u8 vol_l, vol_r; |
| 85 | int muted = 0 != state->mute->val; |
| 86 | u16 volume = (u16)state->vol->val; |
| 87 | u16 balance = (u16)state->bal->val; |
| 88 | |
| 89 | /* normalize ( 65535 to 0 -> 255 to 0 (+24dB to -103dB) ) */ |
| 90 | vol_l = (min(65536 - balance, 32768) * volume) >> 23; |
| 91 | vol_r = (min(balance, (u16)32768) * volume) >> 23; |
| 92 | |
| 93 | /* Mute */ |
| 94 | if (muted || quietly) |
| 95 | wm8775_write(sd, R21, 0x0c0 | state->input); |
| 96 | |
| 97 | wm8775_write(sd, R14, vol_l | 0x100); /* 0x100= Left channel ADC zero cross enable */ |
| 98 | wm8775_write(sd, R15, vol_r | 0x100); /* 0x100= Right channel ADC zero cross enable */ |
| 99 | |
| 100 | /* Un-mute */ |
| 101 | if (!muted) |
| 102 | wm8775_write(sd, R21, state->input); |
| 103 | } |
| 104 | |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 105 | static int wm8775_s_routing(struct v4l2_subdev *sd, |
| 106 | u32 input, u32 output, u32 config) |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 107 | { |
| 108 | struct wm8775_state *state = to_state(sd); |
| 109 | |
| 110 | /* There are 4 inputs and one output. Zero or more inputs |
| 111 | are multiplexed together to the output. Hence there are |
| 112 | 16 combinations. |
| 113 | If only one input is active (the normal case) then the |
| 114 | input values 1, 2, 4 or 8 should be used. */ |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 115 | if (input > 15) { |
| 116 | v4l2_err(sd, "Invalid input %d.\n", input); |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 117 | return -EINVAL; |
| 118 | } |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 119 | state->input = input; |
Hans Verkuil | 3af41a3 | 2013-11-11 11:02:52 -0300 | [diff] [blame] | 120 | if (v4l2_ctrl_g_ctrl(state->mute)) |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 121 | return 0; |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 122 | if (!v4l2_ctrl_g_ctrl(state->vol)) |
| 123 | return 0; |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 124 | wm8775_set_audio(sd, 1); |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 125 | return 0; |
| 126 | } |
| 127 | |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 128 | static int wm8775_s_ctrl(struct v4l2_ctrl *ctrl) |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 129 | { |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 130 | struct v4l2_subdev *sd = to_sd(ctrl); |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 131 | |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 132 | switch (ctrl->id) { |
| 133 | case V4L2_CID_AUDIO_MUTE: |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 134 | case V4L2_CID_AUDIO_VOLUME: |
| 135 | case V4L2_CID_AUDIO_BALANCE: |
| 136 | wm8775_set_audio(sd, 0); |
| 137 | return 0; |
| 138 | case V4L2_CID_AUDIO_LOUDNESS: |
| 139 | wm8775_write(sd, R17, (ctrl->val ? ALC_EN : 0) | ALC_HOLD); |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 140 | return 0; |
| 141 | } |
| 142 | return -EINVAL; |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 143 | } |
| 144 | |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 145 | static int wm8775_log_status(struct v4l2_subdev *sd) |
| 146 | { |
| 147 | struct wm8775_state *state = to_state(sd); |
| 148 | |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 149 | v4l2_info(sd, "Input: %d\n", state->input); |
| 150 | v4l2_ctrl_handler_log_status(&state->hdl, sd->name); |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 151 | return 0; |
| 152 | } |
| 153 | |
Hans Verkuil | b530a44 | 2013-03-19 04:09:26 -0300 | [diff] [blame] | 154 | static int wm8775_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *freq) |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 155 | { |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 156 | wm8775_set_audio(sd, 0); |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 157 | return 0; |
| 158 | } |
| 159 | |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 160 | /* ----------------------------------------------------------------------- */ |
| 161 | |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 162 | static const struct v4l2_ctrl_ops wm8775_ctrl_ops = { |
| 163 | .s_ctrl = wm8775_s_ctrl, |
| 164 | }; |
| 165 | |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 166 | static const struct v4l2_subdev_core_ops wm8775_core_ops = { |
| 167 | .log_status = wm8775_log_status, |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 168 | }; |
| 169 | |
| 170 | static const struct v4l2_subdev_tuner_ops wm8775_tuner_ops = { |
| 171 | .s_frequency = wm8775_s_frequency, |
| 172 | }; |
| 173 | |
| 174 | static const struct v4l2_subdev_audio_ops wm8775_audio_ops = { |
| 175 | .s_routing = wm8775_s_routing, |
| 176 | }; |
| 177 | |
| 178 | static const struct v4l2_subdev_ops wm8775_ops = { |
| 179 | .core = &wm8775_core_ops, |
| 180 | .tuner = &wm8775_tuner_ops, |
| 181 | .audio = &wm8775_audio_ops, |
| 182 | }; |
| 183 | |
| 184 | /* ----------------------------------------------------------------------- */ |
| 185 | |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 186 | /* i2c implementation */ |
| 187 | |
| 188 | /* |
| 189 | * Generic i2c probe |
| 190 | * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' |
| 191 | */ |
| 192 | |
Jean Delvare | d2653e9 | 2008-04-29 23:11:39 +0200 | [diff] [blame] | 193 | static int wm8775_probe(struct i2c_client *client, |
| 194 | const struct i2c_device_id *id) |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 195 | { |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 196 | struct wm8775_state *state; |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 197 | struct v4l2_subdev *sd; |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 198 | int err; |
| 199 | bool is_nova_s = false; |
| 200 | |
| 201 | if (client->dev.platform_data) { |
| 202 | struct wm8775_platform_data *data = client->dev.platform_data; |
| 203 | is_nova_s = data->is_nova_s; |
| 204 | } |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 205 | |
| 206 | /* Check if the adapter supports the needed features */ |
Hans Verkuil | d9a53aa | 2007-09-13 11:08:25 -0300 | [diff] [blame] | 207 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
| 208 | return -EIO; |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 209 | |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 210 | v4l_info(client, "chip found @ 0x%02x (%s)\n", |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 211 | client->addr << 1, client->adapter->name); |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 212 | |
Laurent Pinchart | c02b211 | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 213 | state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL); |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 214 | if (state == NULL) |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 215 | return -ENOMEM; |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 216 | sd = &state->sd; |
| 217 | v4l2_i2c_subdev_init(sd, client, &wm8775_ops); |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 218 | state->input = 2; |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 219 | |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 220 | v4l2_ctrl_handler_init(&state->hdl, 4); |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 221 | state->mute = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops, |
| 222 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 223 | state->vol = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops, |
| 224 | V4L2_CID_AUDIO_VOLUME, 0, 65535, (65535+99)/100, 0xCF00); /* 0dB*/ |
| 225 | state->bal = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops, |
| 226 | V4L2_CID_AUDIO_BALANCE, 0, 65535, (65535+99)/100, 32768); |
| 227 | state->loud = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops, |
| 228 | V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 1); |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 229 | sd->ctrl_handler = &state->hdl; |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 230 | err = state->hdl.error; |
| 231 | if (err) { |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 232 | v4l2_ctrl_handler_free(&state->hdl); |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 233 | return err; |
| 234 | } |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 235 | |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 236 | /* Initialize wm8775 */ |
| 237 | |
| 238 | /* RESET */ |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 239 | wm8775_write(sd, R23, 0x000); |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 240 | /* Disable zero cross detect timeout */ |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 241 | wm8775_write(sd, R7, 0x000); |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 242 | /* HPF enable, left justified, 24-bit (Philips) mode */ |
Mauro Carvalho Chehab | 46e67ac | 2011-01-03 09:09:56 -0200 | [diff] [blame] | 243 | wm8775_write(sd, R11, 0x021); |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 244 | /* Master mode, clock ratio 256fs */ |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 245 | wm8775_write(sd, R12, 0x102); |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 246 | /* Powered up */ |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 247 | wm8775_write(sd, R13, 0x000); |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 248 | |
| 249 | if (!is_nova_s) { |
| 250 | /* ADC gain +2.5dB, enable zero cross */ |
| 251 | wm8775_write(sd, R14, 0x1d4); |
| 252 | /* ADC gain +2.5dB, enable zero cross */ |
| 253 | wm8775_write(sd, R15, 0x1d4); |
| 254 | /* ALC Stereo, ALC target level -1dB FS max gain +8dB */ |
| 255 | wm8775_write(sd, R16, 0x1bf); |
| 256 | /* Enable gain control, use zero cross detection, |
| 257 | ALC hold time 42.6 ms */ |
| 258 | wm8775_write(sd, R17, 0x185); |
| 259 | } else { |
| 260 | /* ALC stereo, ALC target level -5dB FS, ALC max gain +8dB */ |
| 261 | wm8775_write(sd, R16, 0x1bb); |
| 262 | /* Set ALC mode and hold time */ |
| 263 | wm8775_write(sd, R17, (state->loud->val ? ALC_EN : 0) | ALC_HOLD); |
| 264 | } |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 265 | /* ALC gain ramp up delay 34 s, ALC gain ramp down delay 33 ms */ |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 266 | wm8775_write(sd, R18, 0x0a2); |
Hans Verkuil | 842441d | 2007-11-01 07:35:41 -0300 | [diff] [blame] | 267 | /* Enable noise gate, threshold -72dBfs */ |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 268 | wm8775_write(sd, R19, 0x005); |
Lawrence Rust | 6951803 | 2011-02-06 17:46:12 -0300 | [diff] [blame] | 269 | if (!is_nova_s) { |
| 270 | /* Transient window 4ms, lower PGA gain limit -1dB */ |
| 271 | wm8775_write(sd, R20, 0x07a); |
| 272 | /* LRBOTH = 1, use input 2. */ |
| 273 | wm8775_write(sd, R21, 0x102); |
| 274 | } else { |
| 275 | /* Transient window 4ms, ALC min gain -5dB */ |
| 276 | wm8775_write(sd, R20, 0x0fb); |
| 277 | |
| 278 | wm8775_set_audio(sd, 1); /* set volume/mute/mux */ |
| 279 | } |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 280 | return 0; |
| 281 | } |
| 282 | |
Hans Verkuil | d9a53aa | 2007-09-13 11:08:25 -0300 | [diff] [blame] | 283 | static int wm8775_remove(struct i2c_client *client) |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 284 | { |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 285 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 286 | struct wm8775_state *state = to_state(sd); |
Hans Verkuil | ca085fb | 2008-11-29 13:03:22 -0300 | [diff] [blame] | 287 | |
| 288 | v4l2_device_unregister_subdev(sd); |
Hans Verkuil | 5aa9ae5 | 2010-04-24 08:23:53 -0300 | [diff] [blame] | 289 | v4l2_ctrl_handler_free(&state->hdl); |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 290 | return 0; |
| 291 | } |
| 292 | |
Jean Delvare | af29486 | 2008-05-18 20:49:40 +0200 | [diff] [blame] | 293 | static const struct i2c_device_id wm8775_id[] = { |
| 294 | { "wm8775", 0 }, |
| 295 | { } |
| 296 | }; |
| 297 | MODULE_DEVICE_TABLE(i2c, wm8775_id); |
| 298 | |
Hans Verkuil | a5b2c49 | 2010-09-15 15:27:48 -0300 | [diff] [blame] | 299 | static struct i2c_driver wm8775_driver = { |
| 300 | .driver = { |
Hans Verkuil | a5b2c49 | 2010-09-15 15:27:48 -0300 | [diff] [blame] | 301 | .name = "wm8775", |
| 302 | }, |
| 303 | .probe = wm8775_probe, |
| 304 | .remove = wm8775_remove, |
| 305 | .id_table = wm8775_id, |
Hans Verkuil | 0edeea4 | 2005-11-08 21:37:25 -0800 | [diff] [blame] | 306 | }; |
Hans Verkuil | a5b2c49 | 2010-09-15 15:27:48 -0300 | [diff] [blame] | 307 | |
Axel Lin | c6e8d86 | 2012-02-12 06:56:32 -0300 | [diff] [blame] | 308 | module_i2c_driver(wm8775_driver); |