V4L/DVB (6869): cs5345: new i2c driver
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
0b394def21
commit
6fb377f85c
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@ -109,6 +109,16 @@ config VIDEO_MSP3400
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To compile this driver as a module, choose M here: the
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module will be called msp3400.
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config VIDEO_CS5345
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tristate "Cirrus Logic CS5345 audio ADC"
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depends on VIDEO_V4L2 && I2C && EXPERIMENTAL
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---help---
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Support for the Cirrus Logic CS5345 24-bit, 192 kHz
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stereo A/D converter.
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To compile this driver as a module, choose M here: the
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module will be called cs5345.
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config VIDEO_CS53L32A
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tristate "Cirrus Logic CS53L32A audio ADC"
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depends on VIDEO_V4L2 && I2C
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@ -66,6 +66,7 @@ obj-$(CONFIG_VIDEO_USBVISION) += usbvision/
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obj-$(CONFIG_VIDEO_TVP5150) += tvp5150.o
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obj-$(CONFIG_VIDEO_PVRUSB2) += pvrusb2/
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obj-$(CONFIG_VIDEO_MSP3400) += msp3400.o
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obj-$(CONFIG_VIDEO_CS5345) += cs5345.o
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obj-$(CONFIG_VIDEO_CS53L32A) += cs53l32a.o
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obj-$(CONFIG_VIDEO_M52790) += m52790.o
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obj-$(CONFIG_VIDEO_TLV320AIC23B) += tlv320aic23b.o
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@ -0,0 +1,168 @@
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/*
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* cs5345 Cirrus Logic 24-bit, 192 kHz Stereo Audio ADC
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* Copyright (C) 2007 Hans Verkuil
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/version.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/i2c.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-i2c-drv.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-chip-ident.h>
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MODULE_DESCRIPTION("i2c device driver for cs5345 Audio ADC");
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MODULE_AUTHOR("Hans Verkuil");
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MODULE_LICENSE("GPL");
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static int debug;
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module_param(debug, bool, 0644);
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MODULE_PARM_DESC(debug, "Debugging messages\n\t\t\t0=Off (default), 1=On");
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/* ----------------------------------------------------------------------- */
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static inline int cs5345_write(struct i2c_client *client, u8 reg, u8 value)
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{
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return i2c_smbus_write_byte_data(client, reg, value);
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}
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static inline int cs5345_read(struct i2c_client *client, u8 reg)
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{
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return i2c_smbus_read_byte_data(client, reg);
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}
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static int cs5345_command(struct i2c_client *client, unsigned cmd, void *arg)
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{
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struct v4l2_routing *route = arg;
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struct v4l2_control *ctrl = arg;
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switch (cmd) {
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case VIDIOC_INT_G_AUDIO_ROUTING:
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route->input = cs5345_read(client, 0x09) & 7;
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route->input |= cs5345_read(client, 0x05) & 0x70;
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route->output = 0;
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break;
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case VIDIOC_INT_S_AUDIO_ROUTING:
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if ((route->input & 0xf) > 6) {
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v4l_err(client, "Invalid input %d.\n", route->input);
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return -EINVAL;
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}
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cs5345_write(client, 0x09, route->input & 0xf);
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cs5345_write(client, 0x05, route->input & 0xf0);
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break;
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case VIDIOC_G_CTRL:
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if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
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ctrl->value = (cs5345_read(client, 0x04) & 0x08) != 0;
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break;
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}
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if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
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return -EINVAL;
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ctrl->value = cs5345_read(client, 0x07) & 0x3f;
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if (ctrl->value >= 32)
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ctrl->value = ctrl->value - 64;
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break;
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case VIDIOC_S_CTRL:
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break;
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if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
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cs5345_write(client, 0x04, ctrl->value ? 0x80 : 0);
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break;
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}
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if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
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return -EINVAL;
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if (ctrl->value > 24 || ctrl->value < -24)
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return -EINVAL;
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cs5345_write(client, 0x07, ((u8)ctrl->value) & 0x3f);
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cs5345_write(client, 0x08, ((u8)ctrl->value) & 0x3f);
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break;
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#ifdef CONFIG_VIDEO_ADV_DEBUG
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case VIDIOC_DBG_G_REGISTER:
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case VIDIOC_DBG_S_REGISTER:
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{
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struct v4l2_register *reg = arg;
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if (!v4l2_chip_match_i2c_client(client,
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reg->match_type, reg->match_chip))
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return -EINVAL;
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if (!capable(CAP_SYS_ADMIN))
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return -EPERM;
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if (cmd == VIDIOC_DBG_G_REGISTER)
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reg->val = cs5345_read(client, reg->reg & 0x1f);
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else
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cs5345_write(client, reg->reg & 0x1f, reg->val & 0x1f);
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break;
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}
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#endif
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case VIDIOC_G_CHIP_IDENT:
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return v4l2_chip_ident_i2c_client(client,
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arg, V4L2_IDENT_CS5345, 0);
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case VIDIOC_LOG_STATUS:
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{
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u8 v = cs5345_read(client, 0x09) & 7;
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u8 m = cs5345_read(client, 0x04);
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int vol = cs5345_read(client, 0x08) & 0x3f;
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v4l_info(client, "Input: %d%s\n", v,
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(m & 0x80) ? " (muted)" : "");
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if (vol >= 32)
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vol = vol - 64;
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v4l_info(client, "Volume: %d dB\n", vol);
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break;
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}
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default:
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return -EINVAL;
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}
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return 0;
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}
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/* ----------------------------------------------------------------------- */
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static int cs5345_probe(struct i2c_client *client)
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{
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/* Check if the adapter supports the needed features */
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
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return -EIO;
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v4l_info(client, "chip found @ 0x%x (%s)\n",
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client->addr << 1, client->adapter->name);
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cs5345_write(client, 0x02, 0x00);
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cs5345_write(client, 0x04, 0x01);
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cs5345_write(client, 0x09, 0x01);
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return 0;
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}
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/* ----------------------------------------------------------------------- */
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static struct v4l2_i2c_driver_data v4l2_i2c_data = {
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.name = "cs5345",
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.driverid = I2C_DRIVERID_CS5345,
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.command = cs5345_command,
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.probe = cs5345_probe,
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};
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@ -0,0 +1,39 @@
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/*
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cs5345.h - definition for cs5345 inputs and outputs
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Copyright (C) 2007 Hans Verkuil (hverkuil@xs4all.nl)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _CS5345_H_
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#define _CS5345_H_
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/* CS5345 HW inputs */
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#define CS5345_IN_MIC 0
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#define CS5345_IN_1 1
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#define CS5345_IN_2 2
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#define CS5345_IN_3 3
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#define CS5345_IN_4 4
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#define CS5345_IN_5 5
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#define CS5345_IN_6 6
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#define CS5345_MCLK_1 0x00
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#define CS5345_MCLK_1_5 0x10
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#define CS5345_MCLK_2 0x20
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#define CS5345_MCLK_3 0x30
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#define CS5345_MCLK_4 0x40
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#endif
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@ -68,6 +68,9 @@ enum {
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/* module vp27smpx: just ident 2700 */
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V4L2_IDENT_VP27SMPX = 2700,
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/* module cs5345: just ident 5345 */
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V4L2_IDENT_CS5345 = 5345,
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/* module wm8739: just ident 8739 */
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V4L2_IDENT_WM8739 = 8739,
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