diff options
Diffstat (limited to 'drivers/media/video/cs5345.c')
| -rw-r--r-- | drivers/media/video/cs5345.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/drivers/media/video/cs5345.c b/drivers/media/video/cs5345.c deleted file mode 100644 index c8581e26fa9c..000000000000 --- a/drivers/media/video/cs5345.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * cs5345 Cirrus Logic 24-bit, 192 kHz Stereo Audio ADC - * Copyright (C) 2007 Hans Verkuil - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/i2c.h> -#include <linux/videodev2.h> -#include <linux/slab.h> -#include <media/v4l2-device.h> -#include <media/v4l2-chip-ident.h> -#include <media/v4l2-ctrls.h> - -MODULE_DESCRIPTION("i2c device driver for cs5345 Audio ADC"); -MODULE_AUTHOR("Hans Verkuil"); -MODULE_LICENSE("GPL"); - -static bool debug; - -module_param(debug, bool, 0644); - -MODULE_PARM_DESC(debug, "Debugging messages, 0=Off (default), 1=On"); - -struct cs5345_state { - struct v4l2_subdev sd; - struct v4l2_ctrl_handler hdl; -}; - -static inline struct cs5345_state *to_state(struct v4l2_subdev *sd) -{ - return container_of(sd, struct cs5345_state, sd); -} - -static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) -{ - return &container_of(ctrl->handler, struct cs5345_state, hdl)->sd; -} - -/* ----------------------------------------------------------------------- */ - -static inline int cs5345_write(struct v4l2_subdev *sd, u8 reg, u8 value) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return i2c_smbus_write_byte_data(client, reg, value); -} - -static inline int cs5345_read(struct v4l2_subdev *sd, u8 reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return i2c_smbus_read_byte_data(client, reg); -} - -static int cs5345_s_routing(struct v4l2_subdev *sd, - u32 input, u32 output, u32 config) -{ - if ((input & 0xf) > 6) { - v4l2_err(sd, "Invalid input %d.\n", input); - return -EINVAL; - } - cs5345_write(sd, 0x09, input & 0xf); - cs5345_write(sd, 0x05, input & 0xf0); - return 0; -} - -static int cs5345_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = to_sd(ctrl); - - switch (ctrl->id) { - case V4L2_CID_AUDIO_MUTE: - cs5345_write(sd, 0x04, ctrl->val ? 0x80 : 0); - return 0; - case V4L2_CID_AUDIO_VOLUME: - cs5345_write(sd, 0x07, ((u8)ctrl->val) & 0x3f); - cs5345_write(sd, 0x08, ((u8)ctrl->val) & 0x3f); - return 0; - } - return -EINVAL; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int cs5345_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - if (!v4l2_chip_match_i2c_client(client, ®->match)) - return -EINVAL; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - reg->size = 1; - reg->val = cs5345_read(sd, reg->reg & 0x1f); - return 0; -} - -static int cs5345_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - if (!v4l2_chip_match_i2c_client(client, ®->match)) - return -EINVAL; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - cs5345_write(sd, reg->reg & 0x1f, reg->val & 0xff); - return 0; -} -#endif - -static int cs5345_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_CS5345, 0); -} - -static int cs5345_log_status(struct v4l2_subdev *sd) -{ - u8 v = cs5345_read(sd, 0x09) & 7; - u8 m = cs5345_read(sd, 0x04); - int vol = cs5345_read(sd, 0x08) & 0x3f; - - v4l2_info(sd, "Input: %d%s\n", v, - (m & 0x80) ? " (muted)" : ""); - if (vol >= 32) - vol = vol - 64; - v4l2_info(sd, "Volume: %d dB\n", vol); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static const struct v4l2_ctrl_ops cs5345_ctrl_ops = { - .s_ctrl = cs5345_s_ctrl, -}; - -static const struct v4l2_subdev_core_ops cs5345_core_ops = { - .log_status = cs5345_log_status, - .g_chip_ident = cs5345_g_chip_ident, - .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, - .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, - .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, - .g_ctrl = v4l2_subdev_g_ctrl, - .s_ctrl = v4l2_subdev_s_ctrl, - .queryctrl = v4l2_subdev_queryctrl, - .querymenu = v4l2_subdev_querymenu, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .g_register = cs5345_g_register, - .s_register = cs5345_s_register, -#endif -}; - -static const struct v4l2_subdev_audio_ops cs5345_audio_ops = { - .s_routing = cs5345_s_routing, -}; - -static const struct v4l2_subdev_ops cs5345_ops = { - .core = &cs5345_core_ops, - .audio = &cs5345_audio_ops, -}; - -/* ----------------------------------------------------------------------- */ - -static int cs5345_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct cs5345_state *state; - struct v4l2_subdev *sd; - - /* Check if the adapter supports the needed features */ - if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -EIO; - - v4l_info(client, "chip found @ 0x%x (%s)\n", - client->addr << 1, client->adapter->name); - - state = kzalloc(sizeof(struct cs5345_state), GFP_KERNEL); - if (state == NULL) - return -ENOMEM; - sd = &state->sd; - v4l2_i2c_subdev_init(sd, client, &cs5345_ops); - - v4l2_ctrl_handler_init(&state->hdl, 2); - v4l2_ctrl_new_std(&state->hdl, &cs5345_ctrl_ops, - V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); - v4l2_ctrl_new_std(&state->hdl, &cs5345_ctrl_ops, - V4L2_CID_AUDIO_VOLUME, -24, 24, 1, 0); - sd->ctrl_handler = &state->hdl; - if (state->hdl.error) { - int err = state->hdl.error; - - v4l2_ctrl_handler_free(&state->hdl); - kfree(state); - return err; - } - /* set volume/mute */ - v4l2_ctrl_handler_setup(&state->hdl); - - cs5345_write(sd, 0x02, 0x00); - cs5345_write(sd, 0x04, 0x01); - cs5345_write(sd, 0x09, 0x01); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int cs5345_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct cs5345_state *state = to_state(sd); - - v4l2_device_unregister_subdev(sd); - v4l2_ctrl_handler_free(&state->hdl); - kfree(state); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static const struct i2c_device_id cs5345_id[] = { - { "cs5345", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, cs5345_id); - -static struct i2c_driver cs5345_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "cs5345", - }, - .probe = cs5345_probe, - .remove = cs5345_remove, - .id_table = cs5345_id, -}; - -module_i2c_driver(cs5345_driver); |