Commit 6fb377f8 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (6869): cs5345: new i2c driver


Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 0b394def
......@@ -109,6 +109,16 @@ config VIDEO_MSP3400
To compile this driver as a module, choose M here: the
module will be called msp3400.
config VIDEO_CS5345
tristate "Cirrus Logic CS5345 audio ADC"
depends on VIDEO_V4L2 && I2C && EXPERIMENTAL
---help---
Support for the Cirrus Logic CS5345 24-bit, 192 kHz
stereo A/D converter.
To compile this driver as a module, choose M here: the
module will be called cs5345.
config VIDEO_CS53L32A
tristate "Cirrus Logic CS53L32A audio ADC"
depends on VIDEO_V4L2 && I2C
......
......@@ -66,6 +66,7 @@ obj-$(CONFIG_VIDEO_USBVISION) += usbvision/
obj-$(CONFIG_VIDEO_TVP5150) += tvp5150.o
obj-$(CONFIG_VIDEO_PVRUSB2) += pvrusb2/
obj-$(CONFIG_VIDEO_MSP3400) += msp3400.o
obj-$(CONFIG_VIDEO_CS5345) += cs5345.o
obj-$(CONFIG_VIDEO_CS53L32A) += cs53l32a.o
obj-$(CONFIG_VIDEO_M52790) += m52790.o
obj-$(CONFIG_VIDEO_TLV320AIC23B) += tlv320aic23b.o
......
/*
* 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 & 0x1f);
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)
{
/* 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 struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "cs5345",
.driverid = I2C_DRIVERID_CS5345,
.command = cs5345_command,
.probe = cs5345_probe,
};
/*
cs5345.h - definition for cs5345 inputs and outputs
Copyright (C) 2007 Hans Verkuil (hverkuil@xs4all.nl)
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.
*/
#ifndef _CS5345_H_
#define _CS5345_H_
/* CS5345 HW inputs */
#define CS5345_IN_MIC 0
#define CS5345_IN_1 1
#define CS5345_IN_2 2
#define CS5345_IN_3 3
#define CS5345_IN_4 4
#define CS5345_IN_5 5
#define CS5345_IN_6 6
#define CS5345_MCLK_1 0x00
#define CS5345_MCLK_1_5 0x10
#define CS5345_MCLK_2 0x20
#define CS5345_MCLK_3 0x30
#define CS5345_MCLK_4 0x40
#endif
......@@ -68,6 +68,9 @@ enum {
/* module vp27smpx: just ident 2700 */
V4L2_IDENT_VP27SMPX = 2700,
/* module cs5345: just ident 5345 */
V4L2_IDENT_CS5345 = 5345,
/* module wm8739: just ident 8739 */
V4L2_IDENT_WM8739 = 8739,
......
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