Something went wrong. Try again.
(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note *//* * cmt-speech interface definitions * * Copyright (C) 2008,2009,2010 Nokia Corporation. All rights reserved. * * Contact: Kai Vehmanen <kai.vehmanen@nokia.com> * Original author: Peter Ujfalusi <peter.ujfalusi@nokia.com> */
#ifndef _CS_PROTOCOL_H#define _CS_PROTOCOL_H
#include <linux/types.h>#include <linux/ioctl.h>
/* chardev parameters */#define CS_DEV_FILE_NAME "/dev/cmt_speech"
/* user-space API versioning */#define CS_IF_VERSION 2
/* APE kernel <-> user space messages */#define CS_CMD_SHIFT 28#define CS_DOMAIN_SHIFT 24
#define CS_CMD_MASK 0xff000000#define CS_PARAM_MASK 0xffffff
#define CS_CMD(id, dom) \ (((id) << CS_CMD_SHIFT) | ((dom) << CS_DOMAIN_SHIFT))
#define CS_ERROR CS_CMD(1, 0)#define CS_RX_DATA_RECEIVED CS_CMD(2, 0)#define CS_TX_DATA_READY CS_CMD(3, 0)#define CS_TX_DATA_SENT CS_CMD(4, 0)
/* params to CS_ERROR indication */#define CS_ERR_PEER_RESET 0
/* ioctl interface */
/* parameters to CS_CONFIG_BUFS ioctl */#define CS_FEAT_TSTAMP_RX_CTRL (1 << 0)#define CS_FEAT_ROLLING_RX_COUNTER (2 << 0)
/* parameters to CS_GET_STATE ioctl */#define CS_STATE_CLOSED 0#define CS_STATE_OPENED 1 /* resource allocated */#define CS_STATE_CONFIGURED 2 /* data path active */
/* maximum number of TX/RX buffers */#define CS_MAX_BUFFERS_SHIFT 4#define CS_MAX_BUFFERS (1 << CS_MAX_BUFFERS_SHIFT)
/* Parameters for setting up the data buffers */struct cs_buffer_config { __u32 rx_bufs; /* number of RX buffer slots */ __u32 tx_bufs; /* number of TX buffer slots */ __u32 buf_size; /* bytes */ __u32 flags; /* see CS_FEAT_* */ __u32 reserved[4];};
/* * struct for monotonic timestamp taken when the * last control command was received */struct cs_timestamp { __u32 tv_sec; /* seconds */ __u32 tv_nsec; /* nanoseconds */};
/* * Struct describing the layout and contents of the driver mmap area. * This information is meant as read-only information for the application. */struct cs_mmap_config_block { __u32 reserved1; __u32 buf_size; /* 0=disabled, otherwise the transfer size */ __u32 rx_bufs; /* # of RX buffers */ __u32 tx_bufs; /* # of TX buffers */ __u32 reserved2; /* array of offsets within the mmap area for each RX and TX buffer */ __u32 rx_offsets[CS_MAX_BUFFERS]; __u32 tx_offsets[CS_MAX_BUFFERS]; __u32 rx_ptr; __u32 rx_ptr_boundary; __u32 reserved3[2]; /* enabled with CS_FEAT_TSTAMP_RX_CTRL */ struct cs_timestamp tstamp_rx_ctrl;};
#define CS_IO_MAGIC 'C'
#define CS_IOW(num, dtype) _IOW(CS_IO_MAGIC, num, dtype)#define CS_IOR(num, dtype) _IOR(CS_IO_MAGIC, num, dtype)#define CS_IOWR(num, dtype) _IOWR(CS_IO_MAGIC, num, dtype)#define CS_IO(num) _IO(CS_IO_MAGIC, num)
#define CS_GET_STATE CS_IOR(21, unsigned int)#define CS_SET_WAKELINE CS_IOW(23, unsigned int)#define CS_GET_IF_VERSION CS_IOR(30, unsigned int)#define CS_CONFIG_BUFS CS_IOW(31, struct cs_buffer_config)
#endif /* _CS_PROTOCOL_H */