76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
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/*
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* saf775x_ioctl.h -- SAF775X Soc Audio driver IO control
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*
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* Copyright (c) 2014-2019 NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHIN
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SAF775X_IOCTL_H__
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#define __SAF775X_IOCTL_H__
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#include <linux/i2c.h>
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#include <linux/spi/spi.h>
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#include <linux/uaccess.h>
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#include <linux/cdev.h>
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#include <linux/fs.h>
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#include <linux/device.h>
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#include <uapi/misc/saf775x_ioctl.h>
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#define BYTEPOS_IN_WORD(i) (BITS_PER_BYTE * i)
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#define CHAR_BIT_MASK(i) (0xFF << BYTEPOS_IN_WORD(i))
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#define SPI 0
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#define I2C 1
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struct saf775x_ioctl_ops {
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int (*codec_write)(void *codec,
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unsigned int reg, unsigned int val,
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unsigned int reg_len, unsigned int val_len);
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int (*codec_reset)(void);
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int (*codec_read)(void *codec,
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unsigned char *val, unsigned int val_len);
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int (*codec_set_ctrl)(void *codec, char *name,
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unsigned int *reg, int val,
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unsigned int num_reg);
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int (*codec_get_ctrl)(void *codec,
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struct saf775x_control_info *info);
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int (*codec_write_keycode)(void *codec,
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unsigned int reg, unsigned char *val,
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unsigned int reg_len, unsigned int val_len);
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#if defined(CONFIG_SPI_MASTER)
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int (*codec_flash)(struct spi_device *codec,
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char *buf, unsigned int size);
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int (*codec_read_status)(struct spi_device *codec,
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char *buf, unsigned int size);
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#endif
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};
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struct saf775x_device_interfaces {
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struct i2c_client *client;
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struct spi_device *spi;
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};
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int saf775x_hwdep_create(void);
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int saf775x_hwdep_cleanup(void);
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struct saf775x_ioctl_ops *saf775x_get_ioctl_ops(void);
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struct saf775x_device_interfaces *saf775x_get_devifs(void);
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unsigned int saf775x_get_active_if(void);
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int saf775x_set_active_if(unsigned int);
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#endif /* __SAF775X_IOCTL_H__ */
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