diff options
Diffstat (limited to 'drivers/media/video/cs5345.c')
| -rw-r--r-- | drivers/media/video/cs5345.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/drivers/media/video/cs5345.c b/drivers/media/video/cs5345.c deleted file mode 100644 index 61d14d26686..00000000000 --- a/drivers/media/video/cs5345.c +++ /dev/null @@ -1,175 +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/version.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/i2c.h> -#include <linux/videodev2.h> -#include <media/v4l2-i2c-drv.h> -#include <media/v4l2-common.h> -#include <media/v4l2-chip-ident.h> - -MODULE_DESCRIPTION("i2c device driver for cs5345 Audio ADC"); -MODULE_AUTHOR("Hans Verkuil"); -MODULE_LICENSE("GPL"); - -static int debug; - -module_param(debug, bool, 0644); - -MODULE_PARM_DESC(debug, "Debugging messages\n\t\t\t0=Off (default), 1=On"); - - -/* ----------------------------------------------------------------------- */ - -static inline int cs5345_write(struct i2c_client *client, u8 reg, u8 value) -{ - return i2c_smbus_write_byte_data(client, reg, value); -} - -static inline int cs5345_read(struct i2c_client *client, u8 reg) -{ - return i2c_smbus_read_byte_data(client, reg); -} - -static int cs5345_command(struct i2c_client *client, unsigned cmd, void *arg) -{ - struct v4l2_routing *route = arg; - struct v4l2_control *ctrl = arg; - - switch (cmd) { - case VIDIOC_INT_G_AUDIO_ROUTING: - route->input = cs5345_read(client, 0x09) & 7; - route->input |= cs5345_read(client, 0x05) & 0x70; - route->output = 0; - break; - - case VIDIOC_INT_S_AUDIO_ROUTING: - if ((route->input & 0xf) > 6) { - v4l_err(client, "Invalid input %d.\n", route->input); - return -EINVAL; - } - cs5345_write(client, 0x09, route->input & 0xf); - cs5345_write(client, 0x05, route->input & 0xf0); - break; - - case VIDIOC_G_CTRL: - if (ctrl->id == V4L2_CID_AUDIO_MUTE) { - ctrl->value = (cs5345_read(client, 0x04) & 0x08) != 0; - break; - } - if (ctrl->id != V4L2_CID_AUDIO_VOLUME) - return -EINVAL; - ctrl->value = cs5345_read(client, 0x07) & 0x3f; - if (ctrl->value >= 32) - ctrl->value = ctrl->value - 64; - break; - - case VIDIOC_S_CTRL: - break; - if (ctrl->id == V4L2_CID_AUDIO_MUTE) { - cs5345_write(client, 0x04, ctrl->value ? 0x80 : 0); - break; - } - if (ctrl->id != V4L2_CID_AUDIO_VOLUME) - return -EINVAL; - if (ctrl->value > 24 || ctrl->value < -24) - return -EINVAL; - cs5345_write(client, 0x07, ((u8)ctrl->value) & 0x3f); - cs5345_write(client, 0x08, ((u8)ctrl->value) & 0x3f); - break; - -#ifdef CONFIG_VIDEO_ADV_DEBUG - case VIDIOC_DBG_G_REGISTER: - case VIDIOC_DBG_S_REGISTER: - { - struct v4l2_register *reg = arg; - - if (!v4l2_chip_match_i2c_client(client, - reg->match_type, reg->match_chip)) - return -EINVAL; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - if (cmd == VIDIOC_DBG_G_REGISTER) - reg->val = cs5345_read(client, reg->reg & 0x1f); - else - cs5345_write(client, reg->reg & 0x1f, reg->val & 0xff); - break; - } -#endif - - case VIDIOC_G_CHIP_IDENT: - return v4l2_chip_ident_i2c_client(client, - arg, V4L2_IDENT_CS5345, 0); - - case VIDIOC_LOG_STATUS: - { - u8 v = cs5345_read(client, 0x09) & 7; - u8 m = cs5345_read(client, 0x04); - int vol = cs5345_read(client, 0x08) & 0x3f; - - v4l_info(client, "Input: %d%s\n", v, - (m & 0x80) ? " (muted)" : ""); - if (vol >= 32) - vol = vol - 64; - v4l_info(client, "Volume: %d dB\n", vol); - break; - } - - default: - return -EINVAL; - } - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int cs5345_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - /* 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); - - cs5345_write(client, 0x02, 0x00); - cs5345_write(client, 0x04, 0x01); - cs5345_write(client, 0x09, 0x01); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static const struct i2c_device_id cs5345_id[] = { - { "cs5345", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, cs5345_id); - -static struct v4l2_i2c_driver_data v4l2_i2c_data = { - .name = "cs5345", - .driverid = I2C_DRIVERID_CS5345, - .command = cs5345_command, - .probe = cs5345_probe, - .id_table = cs5345_id, -}; |