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/*
* Copyright (c) 2012, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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.
*
*/
#ifndef ADSPRPC_SHARED_H
#define ADSPRPC_SHARED_H
#ifdef __KERNEL__
#include <linux/types.h>
#endif /*__KERNEL__*/
#define FASTRPC_IOCTL_INVOKE _IOWR('R', 1, struct fastrpc_ioctl_invoke)
#define FASTRPC_SMD_GUID "fastrpcsmd-apps-dsp"
#define DEVICE_NAME "adsprpc-smd"
/* Retrives number of input buffers from the scalars parameter */
#define REMOTE_SCALARS_INBUFS(sc) (((sc) >> 16) & 0x0ff)
/* Retrives number of output buffers from the scalars parameter */
#define REMOTE_SCALARS_OUTBUFS(sc) (((sc) >> 8) & 0x0ff)
/* Retrives number of input handles from the scalars parameter */
#define REMOTE_SCALARS_INHANDLES(sc) (((sc) >> 4) & 0x0f)
/* Retrives number of output handles from the scalars parameter */
#define REMOTE_SCALARS_OUTHANDLES(sc) ((sc) & 0x0f)
#define REMOTE_SCALARS_LENGTH(sc) (REMOTE_SCALARS_INBUFS(sc) +\
REMOTE_SCALARS_OUTBUFS(sc) +\
REMOTE_SCALARS_INHANDLES(sc) +\
REMOTE_SCALARS_OUTHANDLES(sc))
#define REMOTE_SCALARS_MAKEX(attr, method, in, out, oin, oout) \
((((uint32_t) (attr) & 0x7) << 29) | \
(((uint32_t) (method) & 0x1f) << 24) | \
(((uint32_t) (in) & 0xff) << 16) | \
(((uint32_t) (out) & 0xff) << 8) | \
(((uint32_t) (oin) & 0x0f) << 4) | \
((uint32_t) (oout) & 0x0f))
#define REMOTE_SCALARS_MAKE(method, in, out) \
REMOTE_SCALARS_MAKEX(0, method, in, out, 0, 0)
#ifndef VERIFY_PRINT_ERROR
#define VERIFY_EPRINTF(format, args) (void)0
#endif
#ifndef VERIFY_PRINT_INFO
#define VERIFY_IPRINTF(args) (void)0
#endif
#ifndef VERIFY
#define __STR__(x) #x ":"
#define __TOSTR__(x) __STR__(x)
#define __FILE_LINE__ __FILE__ ":" __TOSTR__(__LINE__)
#define VERIFY(err, val) \
do {\
VERIFY_IPRINTF(__FILE_LINE__"info: calling: " #val "\n");\
if (0 == (val)) {\
(err) = (err) == 0 ? -1 : (err);\
VERIFY_EPRINTF(__FILE_LINE__"error: %d: " #val "\n", (err));\
} else {\
VERIFY_IPRINTF(__FILE_LINE__"info: passed: " #val "\n");\
} \
} while (0)
#endif
#define remote_arg_t union remote_arg
struct remote_buf {
void *pv; /* buffer pointer */
int len; /* length of buffer */
};
union remote_arg {
struct remote_buf buf; /* buffer info */
uint32_t h; /* remote handle */
};
struct fastrpc_ioctl_invoke {
uint32_t handle; /* remote handle */
uint32_t sc; /* scalars describing the data */
remote_arg_t *pra; /* remote arguments list */
};
struct smq_null_invoke {
struct smq_invoke_ctx *ctx; /* invoke caller context */
uint32_t handle; /* handle to invoke */
uint32_t sc; /* scalars structure describing the data */
};
struct smq_phy_page {
uint32_t addr; /* physical address */
uint32_t size; /* size of contiguous region */
};
struct smq_invoke_buf {
int num; /* number of contiguous regions */
int pgidx; /* index to start of contiguous region */
};
struct smq_invoke {
struct smq_null_invoke header;
struct smq_phy_page page; /* remote arg and list of pages address */
};
struct smq_msg {
uint32_t pid; /* process group id */
uint32_t tid; /* thread id */
struct smq_invoke invoke;
};
struct smq_invoke_rsp {
struct smq_invoke_ctx *ctx; /* invoke caller context */
int retval; /* invoke return value */
};
static inline struct smq_invoke_buf *smq_invoke_buf_start(remote_arg_t *pra,
uint32_t sc)
{
int len = REMOTE_SCALARS_LENGTH(sc);
return (struct smq_invoke_buf *)(&pra[len]);
}
static inline struct smq_phy_page *smq_phy_page_start(uint32_t sc,
struct smq_invoke_buf *buf)
{
int nTotal = REMOTE_SCALARS_INBUFS(sc) + REMOTE_SCALARS_OUTBUFS(sc);
return (struct smq_phy_page *)(&buf[nTotal]);
}
static inline int smq_invoke_buf_size(uint32_t sc, int nPages)
{
struct smq_phy_page *start = smq_phy_page_start(sc, 0);
return (int)(&(start[nPages]));
}
#endif
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