/*
* dspapi.c
*
* DSP-BIOS Bridge driver support functions for TI OMAP processors.
*
* Common DSP API functions, also includes the wrapper
* functions called directly by the DeviceIOControl interface.
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <linux/types.h>
/* ----------------------------------- Host OS */
#include <dspbridge/host_os.h>
/* ----------------------------------- DSP/BIOS Bridge */
#include <dspbridge/dbdefs.h>
/* ----------------------------------- Trace & Debug */
#include <dspbridge/dbc.h>
/* ----------------------------------- OS Adaptation Layer */
#include <dspbridge/ntfy.h>
/* ----------------------------------- Platform Manager */
#include <dspbridge/chnl.h>
#include <dspbridge/dev.h>
#include <dspbridge/drv.h>
#include <dspbridge/proc.h>
#include <dspbridge/strm.h>
/* ----------------------------------- Resource Manager */
#include <dspbridge/disp.h>
#include <dspbridge/mgr.h>
#include <dspbridge/node.h>
#include <dspbridge/rmm.h>
/* ----------------------------------- Others */
#include <dspbridge/msg.h>
#include <dspbridge/cmm.h>
#include <dspbridge/io.h>
/* ----------------------------------- This */
#include <dspbridge/dspapi.h>
#include <dspbridge/dbdcd.h>
#include <dspbridge/resourcecleanup.h>
/* ----------------------------------- Defines, Data Structures, Typedefs */
#define MAX_TRACEBUFLEN 255
#define MAX_LOADARGS 16
#define MAX_NODES 64
#define MAX_STREAMS 16
#define MAX_BUFS 64
/* Used to get dspbridge ioctl table */
#define DB_GET_IOC_TABLE(cmd) (DB_GET_MODULE(cmd) >> DB_MODULE_SHIFT)
/* Device IOCtl function pointer */
struct api_cmd {
u32(*fxn) (union trapped_args *args, void *pr_ctxt);
u32 index;
};
/* ----------------------------------- Globals */
static u32 api_c_refs;
/*
* Function tables.
* The order of these functions MUST be the same as the order of the command
* numbers defined in dspapi-ioctl.h This is how an IOCTL number in user mode
* turns into a function call in kernel mode.
*/
/* MGR wrapper functions */
static struct api_cmd mgr_cmd[] = {
{mgrwrap_enum_node_info}, /* MGR_ENUMNODE_INFO */
{mgrwrap_enum_proc_info}, /* MGR_ENUMPROC_INFO */
{mgrwrap_register_object}, /* MGR_REGISTEROBJECT */
{mgrwrap_unregister_object}, /* MGR_UNREGISTEROBJECT */
{mgrwrap_wait_for_bridge_events}, /* MGR_WAIT */
{mgrwrap_get_process_resources_info}, /* MGR_GET_PROC_RES */
};
/* PROC wrapper functions */
static struct api_cmd proc_cmd[] = {
{procwrap_attach}, /* PROC_ATTACH */
{procwrap_ctrl}, /* PROC_CTRL */
{procwrap_detach}, /* PROC_DETACH */
{procwrap_enum_node_info}, /* PROC_ENUMNODE */
{procwrap_enum_resources}, /* PROC_ENUMRESOURCES */
{procwrap_get_state}, /* PROC_GET_STATE */
{procwrap_get_trace}, /* PROC_GET_TRACE */
{procwrap_load}, /* PROC_LOAD */
{procwrap_register_notify}, /* PROC_REGISTERNOTIFY */
{procwrap_start}, /* PROC_START */
{procwrap_reserve_memory}, /* PROC_RSVMEM */
{procwrap_un_reserve_memory}, /* PROC_UNRSVMEM */
{procwrap_map}, /* PROC_MAPMEM */
{procwrap_un_map}, /* PROC_UNMAPMEM */
{procwrap_flush_memory}, /* PROC_FLUSHMEMORY */
{procwrap_stop}, /* PROC_STOP */
{procwrap_invalidate_memory}, /* PROC_INVALIDATEMEMORY */
{procwrap_begin_dma}, /* PROC_BEGINDMA */
{procwrap_end_dma}, /* PROC_ENDDMA */
};
/* NODE wrapper functions */
static struct api_cmd node_cmd[] = {
{nodewrap_allocate}, /* NODE_ALLOCATE */
{nodewrap_alloc_msg_buf}, /* NODE_ALLOCMSGBUF */
{nodewrap_change_priority}, /* NODE_CHANGEPRIORITY */
{nodewrap_connect}, /* NODE_CONNECT */
{nodewrap_create}, /* NODE_CREATE */
{nodewrap_delete}, /* NODE_DELETE */
{nodewrap_free_msg_buf}, /* NODE_FREEMSGBUF */
{nodewrap_get_attr}, /* NODE_GETATTR */
{nodewrap_get_message}, /* NODE_GETMESSAGE */
{nodewrap_pause}, /* NODE_PAUSE */
{nodewrap_put_message}, /* NODE_PUTMESSAGE */
{nodewrap_register_notify}, /* NODE_REGISTERNOTIFY */
{nodewrap_run}, /* NODE_RUN */
{nodewrap_terminate}, /* NODE_TERMINATE */
{nodewrap_get_uuid_props}, /* NODE_GETUUIDPROPS */
};
/* STRM wrapper functions */
static struct api_cmd strm_cmd[] = {
{strmwrap_allocate_buffer}, /* STRM_ALLOCATEBUFFER */
{strmwrap_close}, /* STRM_CLOSE */
{strmwrap_free_buffer}, /* STRM_FREEBUFFER */
{strmwrap_get_event_handle}, /* STRM_GETEVENTHANDLE */
{strmwrap_get_info}, /* STRM_GETINFO */
{strmwrap_idle}, /* STRM_IDLE */
{strmwrap_issue}, /* STRM_ISSUE */
{strmwrap_open}, /* STRM_OPEN */
{strmwrap_reclaim}, /* STRM_RECLAIM */
{strmwrap_register_notify}, /* STRM_REGISTERNOTIFY */
{strmwrap_select}, /* STRM_SELECT */
};
/* CMM wrapper functions */
static struct api_cmd cmm_cmd[] = {
{cmmwrap_calloc_buf}, /* CMM_ALLOCBUF */
{cmmwrap_free_buf}, /* CMM_FREEBUF */
{cmmwrap_get_handle}, /* CMM_GETHANDLE */
{cmmwrap_get_info}, /* CMM_GETINFO */
};
/* Array used to store ioctl table sizes. It can hold up to 8 entries */
static u8 size_cmd[] = {
ARRAY_SIZE(mgr_cmd),
ARRAY_SIZE(proc_cmd),
ARRAY_SIZE(node_cmd),
ARRAY_SIZE(strm_cmd),
ARRAY_SIZE(cmm_cmd),
};
static inline void _cp_fm_usr(void *to, const void __user * from,
int *err, unsigned long bytes)
{
if (*err)
return;
if (unlikely(!from)) {
*err = -EFAULT;
return;
}
if (unlikely(copy_from_user(to, from, bytes)))
*err = -EFAULT;
}
#define CP_FM_USR(to, from, err, n) \
_cp_fm_usr(to, from, &(err), (n) * sizeof(*(to)))
static inline void _cp_to_usr(void __user *to, const void *from,
int *err, unsigned long bytes)
{
if (*err)
return;
if (unlikely(!to)) {
*err = -EFAULT;
return;
}
if (unlikely(copy_to_user(to, from, bytes)))
*err = -EFAULT;
}
#define CP_TO_USR(to, from, err, n) \
_cp_to_usr(to, from, &(err), (n) * sizeof(*(from)))
/*
* ======== api_call_dev_ioctl ========
* Purpose:
* Call the (wrapper) function for the corresponding API IOCTL.
*/
inline int api_call_dev_ioctl(u32 cmd, union trapped_args *args,
u32 *result, void *pr_ctxt)
{
u32(*ioctl_cmd) (union trapped_args *args, void *pr_ctxt) = NULL;
int i;
if (_IOC_TYPE(cmd) != DB) {
pr_err("%s: Incompatible dspbridge ioctl number\n", __func__);
goto err;
}
if (DB_GET_IOC_TABLE(cmd) > ARRAY_SIZE(size_cmd)) {
pr_err("%s: undefined ioctl module\n", __func__);
goto err;
}
/* Check the size of the required cmd table */
i = DB_GET_IOC(cmd);
if (i > size_cmd[DB_GET_IOC_TABLE(cmd)]) {
pr_err("%s: requested ioctl %d out of bounds for table %d\n",
__func__, i, DB_GET_IOC_TABLE(cmd));
goto err;
}
switch (DB_GET_MODULE(cmd)) {
case DB_MGR:
ioctl_cmd = mgr_cmd[i].fxn;
break;
case DB_PROC:
ioctl_cmd = proc_cmd[i].fxn;
break;
case DB_NODE:
ioctl_cmd = node_cmd[i].fxn;
break;
case DB_STRM:
ioctl_cmd = strm_cmd[i].fxn;
break;
case DB_CMM:
ioctl_cmd = cmm_cmd[i].fxn;
break;
}
if (!ioctl_cmd) {
pr_err("%s: requested ioctl not defined\n", __func__);
goto err;
} else {
*result = (*ioctl_cmd) (args, pr_ctxt);
}
return 0;
err:
return -EINVAL;
}
/*
* ======== api_exit ========
*/
void api_exit(void)
{
DBC_REQUIRE(api_c_refs > 0);
api_c_refs--;
if (api_c_refs == 0) {
/* Release all modules initialized in api_init(). */
cod_exit();
dev_exit();
chnl_exit();
msg_exit();
io_exit();
strm_exit();
disp_exit();
node_exit();
proc_exit();
mgr_exit();
rmm_exit();
drv_exit();
}
DBC_ENSURE(api_c_refs >= 0);
}
/*
* ======== api_init ========
* Purpose:
* Module initialization used by Bridge API.
*/
bool api_init(void)
{
bool ret = true;
bool fdrv, fdev, fcod, fchnl, fmsg, fio;
bool fmgr, fproc, fnode, fdisp, fstrm, frmm;
if (api_c_refs == 0) {
/* initialize driver and other modules */
fdrv = drv_init();
fmgr = mgr_init();
fproc = proc_init();
fnode = node_init();
fdisp = disp_init();
fstrm = strm_init();
frmm = rmm_init();
fchnl = chnl_init();
fmsg = msg_mod_init();
fio = io_init();
fdev = dev_init();
fcod = cod_init();
ret = fdrv && fdev && fchnl && fcod && fmsg && fio;
ret = ret && fmgr && fproc && frmm;
if (!ret) {
if (fdrv)
drv_exit();
if (fmgr)
mgr_exit();
if (fstrm)
strm_exit();
if (fproc)
proc_exit();
if (fnode)
node_exit();
if (fdisp)
disp_exit();
if (fchnl)
chnl_exit();
if (fmsg)
msg_exit();
if (fio)
io_exit();
if (fdev)
dev_exit();
if (fcod)
cod_exit();
if (frmm)
rmm_exit();
}
}
if (ret)
api_c_refs++;
return ret;
}
/*
* ======== api_init_complete2 ========
* Purpose:
* Perform any required bridge initialization which cannot
* be performed in api_init() or dev_start_device() due
* to the fact that some services are not yet
* completely initialized.
* Parameters:
* Returns:
* 0: Allow this device to load
* -EPERM: Failure.
* Requires:
* Bridge API initialized.
* Ensures:
*/
int api_init_complete2(void)
{
int status = 0;
struct cfg_devnode *dev_node;
struct dev_object *hdev_obj;
struct drv_data *drv_datap;
u8 dev_type;
DBC_REQUIRE(api_c_refs > 0);
/* Walk the list of DevObjects, get each devnode, and attempting to
* autostart the board. Note that this requires COF loading, which
* requires KFILE. */
for (hdev_obj = dev_get_first(); hdev_obj != NULL;
hdev_obj = dev_get_next(hdev_obj)) {
if (dev_get_dev_node(hdev_obj, &dev_node))
continue;
if (dev_get_dev_type(hdev_obj, &dev_type))
continue;
if ((dev_type == DSP_UNIT) || (dev_type == IVA_UNIT)) {
drv_datap = dev_get_drvdata(bridge);
if (drv_datap && drv_datap->base_img)
proc_auto_start(dev_node, hdev_obj);
}
}
return status;
}
/* TODO: Remove deprecated and not implemented ioctl wrappers */
/*
* ======== mgrwrap_enum_node_info ========
*/
u32 mgrwrap_enum_node_info(union trapped_args *args, void *pr_ctxt)
{
u8 *pndb_props;
u32 num_nodes;
int status = 0;
u32 size = args->args_mgr_enumnode_info.ndb_props_size;
if (size < sizeof(struct dsp_ndbprops))
return -EINVAL;
pndb_props = kmalloc(size, GFP_KERNEL);
if (pndb_props == NULL)
status = -ENOMEM;
if (!status) {
status =
mgr_enum_node_info(args->args_mgr_enumnode_info.node_id,
(struct dsp_ndbprops *)pndb_props, size,
&num_nodes);
}
CP_TO_USR(args->args_mgr_enumnode_info.ndb_props, pndb_props, status,
size);
CP_TO_USR(args->args_mgr_enumnode_info.num_nodes, &num_nodes, status,
1);
kfree(pndb_props);
return status;
}
/*
* ======== mgrwrap_enum_proc_info ========
*/
u32 mgrwrap_enum_proc_info(union trapped_args *args, void *pr_ctxt)
{
u8 *processor_info;
u8 num_procs;
int status = 0;
u32 size = args->args_mgr_enumproc_info.processor_info_size;
if (size < sizeof(struct dsp_processorinfo))
return -EINVAL;
processor_info = kmalloc(size, GFP_KERNEL);
if (processor_info == NULL)
status = -ENOMEM;
if (!status) {
status =
mgr_enum_processor_info(args->args_mgr_enumproc_info.
processor_id,
(struct dsp_processorinfo *)
processor_info, size, &num_procs);
}
CP_TO_USR(args->args_mgr_enumproc_info.processor_info, processor_info,
status, size);
CP_TO_USR(args->args_mgr_enumproc_info.num_procs, &num_procs,
status, 1);
kfree(processor_info);
return status;
}
#define WRAP_MAP2CALLER(x) x
/*
* ======== mgrwrap_register_object ========
*/
u32 mgrwrap_register_object(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
struct dsp_uuid uuid_obj;
u32 path_size = 0;
char *psz_path_name = NULL;
int status = 0;
CP_FM_USR(&uuid_obj, args->args_mgr_registerobject.uuid_obj, status, 1);
if (status)
goto func_end;
/* path_size is increased by 1 to accommodate NULL */
path_size = strlen_user((char *)
args->args_mgr_registerobject.sz_path_name) +
1;
psz_path_name = kmalloc(path_size, GFP_KERNEL);
if (!psz_path_name) {
status = -ENOMEM;
goto func_end;
}
ret = strncpy_from_user(psz_path_name,
(char *)args->args_mgr_registerobject.
sz_path_name, path_size);
if (!ret) {
status = -EFAULT;
goto func_end;
}
if (args->args_mgr_registerobject.obj_type >= DSP_DCDMAXOBJTYPE) {
status = -EINVAL;
goto func_end;
}
status = dcd_register_object(&uuid_obj,
args->args_mgr_registerobject.obj_type,
(char *)psz_path_name);
func_end:
kfree(psz_path_name);
return status;
}
/*
* ======== mgrwrap_unregister_object ========
*/
u32 mgrwrap_unregister_object(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_uuid uuid_obj;
CP_FM_USR(&uuid_obj, args->args_mgr_registerobject.uuid_obj, status, 1);
if (status)
goto func_end;
status = dcd_unregister_object(&uuid_obj,
args->args_mgr_unregisterobject.
obj_type);
func_end:
return status;
}
/*
* ======== mgrwrap_wait_for_bridge_events ========
*/
u32 mgrwrap_wait_for_bridge_events(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_notification *anotifications[MAX_EVENTS];
struct dsp_notification notifications[MAX_EVENTS];
u32 index, i;
u32 count = args->args_mgr_wait.count;
if (count > MAX_EVENTS)
status = -EINVAL;
/* get the array of pointers to user structures */
CP_FM_USR(anotifications, args->args_mgr_wait.anotifications,
status, count);
/* get the events */
for (i = 0; i < count; i++) {
CP_FM_USR(¬ifications[i], anotifications[i], status, 1);
if (status || !notifications[i].handle) {
status = -EINVAL;
break;
}
/* set the array of pointers to kernel structures */
anotifications[i] = ¬ifications[i];
}
if (!status) {
status = mgr_wait_for_bridge_events(anotifications, count,
&index,
args->args_mgr_wait.
timeout);
}
CP_TO_USR(args->args_mgr_wait.index, &index, status, 1);
return status;
}
/*
* ======== MGRWRAP_GetProcessResourceInfo ========
*/
u32 __deprecated mgrwrap_get_process_resources_info(union trapped_args * args,
void *pr_ctxt)
{
pr_err("%s: deprecated dspbridge ioctl\n", __func__);
return 0;
}
/*
* ======== procwrap_attach ========
*/
u32 procwrap_attach(union trapped_args *args, void *pr_ctxt)
{
void *processor;
int status = 0;
struct dsp_processorattrin proc_attr_in, *attr_in = NULL;
/* Optional argument */
if (args->args_proc_attach.attr_in) {
CP_FM_USR(&proc_attr_in, args->args_proc_attach.attr_in, status,
1);
if (!status)
attr_in = &proc_attr_in;
else
goto func_end;
}
status = proc_attach(args->args_proc_attach.processor_id, attr_in,
&processor, pr_ctxt);
CP_TO_USR(args->args_proc_attach.ph_processor, &processor, status, 1);
func_end:
return status;
}
/*
* ======== procwrap_ctrl ========
*/
u32 procwrap_ctrl(union trapped_args *args, void *pr_ctxt)
{
u32 cb_data_size, __user * psize = (u32 __user *)
args->args_proc_ctrl.args;
u8 *pargs = NULL;
int status = 0;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
if (psize) {
if (get_user(cb_data_size, psize)) {
status = -EPERM;
goto func_end;
}
cb_data_size += sizeof(u32);
pargs = kmalloc(cb_data_size, GFP_KERNEL);
if (pargs == NULL) {
status = -ENOMEM;
goto func_end;
}
CP_FM_USR(pargs, args->args_proc_ctrl.args, status,
cb_data_size);
}
if (!status) {
status = proc_ctrl(hprocessor,
args->args_proc_ctrl.cmd,
(struct dsp_cbdata *)pargs);
}
/* CP_TO_USR(args->args_proc_ctrl.args, pargs, status, 1); */
kfree(pargs);
func_end:
return status;
}
/*
* ======== procwrap_detach ========
*/
u32 __deprecated procwrap_detach(union trapped_args * args, void *pr_ctxt)
{
/* proc_detach called at bridge_release only */
pr_err("%s: deprecated dspbridge ioctl\n", __func__);
return 0;
}
/*
* ======== procwrap_enum_node_info ========
*/
u32 procwrap_enum_node_info(union trapped_args *args, void *pr_ctxt)
{
int status;
void *node_tab[MAX_NODES];
u32 num_nodes;
u32 alloc_cnt;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
if (!args->args_proc_enumnode_info.node_tab_size)
return -EINVAL;
status = proc_enum_nodes(hprocessor,
node_tab,
args->args_proc_enumnode_info.node_tab_size,
&num_nodes, &alloc_cnt);
CP_TO_USR(args->args_proc_enumnode_info.node_tab, node_tab, status,
num_nodes);
CP_TO_USR(args->args_proc_enumnode_info.num_nodes, &num_nodes,
status, 1);
CP_TO_USR(args->args_proc_enumnode_info.allocated, &alloc_cnt,
status, 1);
return status;
}
u32 procwrap_end_dma(union trapped_args *args, void *pr_ctxt)
{
int status;
if (args->args_proc_dma.dir >= DMA_NONE)
return -EINVAL;
status = proc_end_dma(pr_ctxt,
args->args_proc_dma.mpu_addr,
args->args_proc_dma.size,
args->args_proc_dma.dir);
return status;
}
u32 procwrap_begin_dma(union trapped_args *args, void *pr_ctxt)
{
int status;
if (args->args_proc_dma.dir >= DMA_NONE)
return -EINVAL;
status = proc_begin_dma(pr_ctxt,
args->args_proc_dma.mpu_addr,
args->args_proc_dma.size,
args->args_proc_dma.dir);
return status;
}
/*
* ======== procwrap_flush_memory ========
*/
u32 procwrap_flush_memory(union trapped_args *args, void *pr_ctxt)
{
int status;
if (args->args_proc_flushmemory.flags >
PROC_WRITEBACK_INVALIDATE_MEM)
return -EINVAL;
status = proc_flush_memory(pr_ctxt,
args->args_proc_flushmemory.mpu_addr,
args->args_proc_flushmemory.size,
args->args_proc_flushmemory.flags);
return status;
}
/*
* ======== procwrap_invalidate_memory ========
*/
u32 procwrap_invalidate_memory(union trapped_args *args, void *pr_ctxt)
{
int status;
status =
proc_invalidate_memory(pr_ctxt,
args->args_proc_invalidatememory.mpu_addr,
args->args_proc_invalidatememory.size);
return status;
}
/*
* ======== procwrap_enum_resources ========
*/
u32 procwrap_enum_resources(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_resourceinfo resource_info;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
if (args->args_proc_enumresources.resource_info_size <
sizeof(struct dsp_resourceinfo))
return -EINVAL;
status =
proc_get_resource_info(hprocessor,
args->args_proc_enumresources.resource_type,
&resource_info,
args->args_proc_enumresources.
resource_info_size);
CP_TO_USR(args->args_proc_enumresources.resource_info, &resource_info,
status, 1);
return status;
}
/*
* ======== procwrap_get_state ========
*/
u32 procwrap_get_state(union trapped_args *args, void *pr_ctxt)
{
int status;
struct dsp_processorstate proc_state;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
if (args->args_proc_getstate.state_info_size <
sizeof(struct dsp_processorstate))
return -EINVAL;
status = proc_get_state(hprocessor, &proc_state,
args->args_proc_getstate.state_info_size);
CP_TO_USR(args->args_proc_getstate.proc_state_obj, &proc_state, status,
1);
return status;
}
/*
* ======== procwrap_get_trace ========
*/
u32 procwrap_get_trace(union trapped_args *args, void *pr_ctxt)
{
int status;
u8 *pbuf;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
if (args->args_proc_gettrace.max_size > MAX_TRACEBUFLEN)
return -EINVAL;
pbuf = kzalloc(args->args_proc_gettrace.max_size, GFP_KERNEL);
if (pbuf != NULL) {
status = proc_get_trace(hprocessor, pbuf,
args->args_proc_gettrace.max_size);
} else {
status = -ENOMEM;
}
CP_TO_USR(args->args_proc_gettrace.buf, pbuf, status,
args->args_proc_gettrace.max_size);
kfree(pbuf);
return status;
}
/*
* ======== procwrap_load ========
*/
u32 procwrap_load(union trapped_args *args, void *pr_ctxt)
{
s32 i, len;
int status = 0;
char *temp;
s32 count = args->args_proc_load.argc_index;
u8 **argv = NULL, **envp = NULL;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
if (count <= 0 || count > MAX_LOADARGS) {
status = -EINVAL;
goto func_cont;
}
argv = kmalloc(count * sizeof(u8 *), GFP_KERNEL);
if (!argv) {
status = -ENOMEM;
goto func_cont;
}
CP_FM_USR(argv, args->args_proc_load.user_args, status, count);
if (status) {
kfree(argv);
argv = NULL;
goto func_cont;
}
for (i = 0; i < count; i++) {
if (argv[i]) {
/* User space pointer to argument */
temp = (char *)argv[i];
/* len is increased by 1 to accommodate NULL */
len = strlen_user((char *)temp) + 1;
/* Kernel space pointer to argument */
argv[i] = kmalloc(len, GFP_KERNEL);
if (argv[i]) {
CP_FM_USR(argv[i], temp, status, len);
if (status) {
kfree(argv[i]);
argv[i] = NULL;
goto func_cont;
}
} else {
status = -ENOMEM;
goto func_cont;
}
}
}
/* TODO: validate this */
if (args->args_proc_load.user_envp) {
/* number of elements in the envp array including NULL */
count = 0;
do {
if (get_user(temp,
args->args_proc_load.user_envp + count)) {
status = -EFAULT;
goto func_cont;
}
count++;
} while (temp);
envp = kmalloc(count * sizeof(u8 *), GFP_KERNEL);
if (!envp) {
status = -ENOMEM;
goto func_cont;
}
CP_FM_USR(envp, args->args_proc_load.user_envp, status, count);
if (status) {
kfree(envp);
envp = NULL;
goto func_cont;
}
for (i = 0; envp[i]; i++) {
/* User space pointer to argument */
temp = (char *)envp[i];
/* len is increased by 1 to accommodate NULL */
len = strlen_user((char *)temp) + 1;
/* Kernel space pointer to argument */
envp[i] = kmalloc(len, GFP_KERNEL);
if (envp[i]) {
CP_FM_USR(envp[i], temp, status, len);
if (status) {
kfree(envp[i]);
envp[i] = NULL;
goto func_cont;
}
} else {
status = -ENOMEM;
goto func_cont;
}
}
}
if (!status) {
status = proc_load(hprocessor,
args->args_proc_load.argc_index,
(const char **)argv, (const char **)envp);
}
func_cont:
if (envp) {
i = 0;
while (envp[i])
kfree(envp[i++]);
kfree(envp);
}
if (argv) {
count = args->args_proc_load.argc_index;
for (i = 0; (i < count) && argv[i]; i++)
kfree(argv[i]);
kfree(argv);
}
return status;
}
/*
* ======== procwrap_map ========
*/
u32 procwrap_map(union trapped_args *args, void *pr_ctxt)
{
int status;
void *map_addr;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
if (!args->args_proc_mapmem.size)
return -EINVAL;
status = proc_map(args->args_proc_mapmem.processor,
args->args_proc_mapmem.mpu_addr,
args->args_proc_mapmem.size,
args->args_proc_mapmem.req_addr, &map_addr,
args->args_proc_mapmem.map_attr, pr_ctxt);
if (!status) {
if (put_user(map_addr, args->args_proc_mapmem.map_addr)) {
status = -EINVAL;
proc_un_map(hprocessor, map_addr, pr_ctxt);
}
}
return status;
}
/*
* ======== procwrap_register_notify ========
*/
u32 procwrap_register_notify(union trapped_args *args, void *pr_ctxt)
{
int status;
struct dsp_notification notification;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
/* Initialize the notification data structure */
notification.name = NULL;
notification.handle = NULL;
status = proc_register_notify(hprocessor,
args->args_proc_register_notify.event_mask,
args->args_proc_register_notify.notify_type,
¬ification);
CP_TO_USR(args->args_proc_register_notify.notification, ¬ification,
status, 1);
return status;
}
/*
* ======== procwrap_reserve_memory ========
*/
u32 procwrap_reserve_memory(union trapped_args *args, void *pr_ctxt)
{
int status;
void *prsv_addr;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
if ((args->args_proc_rsvmem.size <= 0) ||
(args->args_proc_rsvmem.size & (PG_SIZE4K - 1)) != 0)
return -EINVAL;
status = proc_reserve_memory(hprocessor,
args->args_proc_rsvmem.size, &prsv_addr,
pr_ctxt);
if (!status) {
if (put_user(prsv_addr, args->args_proc_rsvmem.rsv_addr)) {
status = -EINVAL;
proc_un_reserve_memory(args->args_proc_rsvmem.
processor, prsv_addr, pr_ctxt);
}
}
return status;
}
/*
* ======== procwrap_start ========
*/
u32 procwrap_start(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
ret = proc_start(((struct process_context *)pr_ctxt)->processor);
return ret;
}
/*
* ======== procwrap_un_map ========
*/
u32 procwrap_un_map(union trapped_args *args, void *pr_ctxt)
{
int status;
status = proc_un_map(((struct process_context *)pr_ctxt)->processor,
args->args_proc_unmapmem.map_addr, pr_ctxt);
return status;
}
/*
* ======== procwrap_un_reserve_memory ========
*/
u32 procwrap_un_reserve_memory(union trapped_args *args, void *pr_ctxt)
{
int status;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
status = proc_un_reserve_memory(hprocessor,
args->args_proc_unrsvmem.rsv_addr,
pr_ctxt);
return status;
}
/*
* ======== procwrap_stop ========
*/
u32 procwrap_stop(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
ret = proc_stop(((struct process_context *)pr_ctxt)->processor);
return ret;
}
/*
* ======== find_handle =========
*/
inline void find_node_handle(struct node_res_object **noderes,
void *pr_ctxt, void *hnode)
{
rcu_read_lock();
*noderes = idr_find(((struct process_context *)pr_ctxt)->node_id,
(int)hnode - 1);
rcu_read_unlock();
return;
}
/*
* ======== nodewrap_allocate ========
*/
u32 nodewrap_allocate(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_uuid node_uuid;
u32 cb_data_size = 0;
u32 __user *psize = (u32 __user *) args->args_node_allocate.args;
u8 *pargs = NULL;
struct dsp_nodeattrin proc_attr_in, *attr_in = NULL;
struct node_res_object *node_res;
int nodeid;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
/* Optional argument */
if (psize) {
if (get_user(cb_data_size, psize))
status = -EPERM;
cb_data_size += sizeof(u32);
if (!status) {
pargs = kmalloc(cb_data_size, GFP_KERNEL);
if (pargs == NULL)
status = -ENOMEM;
}
CP_FM_USR(pargs, args->args_node_allocate.args, status,
cb_data_size);
}
CP_FM_USR(&node_uuid, args->args_node_allocate.node_id_ptr, status, 1);
if (status)
goto func_cont;
/* Optional argument */
if (args->args_node_allocate.attr_in) {
CP_FM_USR(&proc_attr_in, args->args_node_allocate.attr_in,
status, 1);
if (!status)
attr_in = &proc_attr_in;
else
status = -ENOMEM;
}
if (!status) {
status = node_allocate(hprocessor,
&node_uuid, (struct dsp_cbdata *)pargs,
attr_in, &node_res, pr_ctxt);
}
if (!status) {
nodeid = node_res->id + 1;
CP_TO_USR(args->args_node_allocate.node, &nodeid,
status, 1);
if (status) {
status = -EFAULT;
node_delete(node_res, pr_ctxt);
}
}
func_cont:
kfree(pargs);
return status;
}
/*
* ======== nodewrap_alloc_msg_buf ========
*/
u32 nodewrap_alloc_msg_buf(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_bufferattr *pattr = NULL;
struct dsp_bufferattr attr;
u8 *pbuffer = NULL;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt,
args->args_node_allocmsgbuf.node);
if (!node_res)
return -EFAULT;
if (!args->args_node_allocmsgbuf.size)
return -EINVAL;
if (args->args_node_allocmsgbuf.attr) { /* Optional argument */
CP_FM_USR(&attr, args->args_node_allocmsgbuf.attr, status, 1);
if (!status)
pattr = &attr;
}
/* argument */
CP_FM_USR(&pbuffer, args->args_node_allocmsgbuf.buffer, status, 1);
if (!status) {
status = node_alloc_msg_buf(node_res->node,
args->args_node_allocmsgbuf.size,
pattr, &pbuffer);
}
CP_TO_USR(args->args_node_allocmsgbuf.buffer, &pbuffer, status, 1);
return status;
}
/*
* ======== nodewrap_change_priority ========
*/
u32 nodewrap_change_priority(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt,
args->args_node_changepriority.node);
if (!node_res)
return -EFAULT;
ret = node_change_priority(node_res->node,
args->args_node_changepriority.prio);
return ret;
}
/*
* ======== nodewrap_connect ========
*/
u32 nodewrap_connect(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_strmattr attrs;
struct dsp_strmattr *pattrs = NULL;
u32 cb_data_size;
u32 __user *psize = (u32 __user *) args->args_node_connect.conn_param;
u8 *pargs = NULL;
struct node_res_object *node_res1, *node_res2;
struct node_object *node1 = NULL, *node2 = NULL;
if ((int)args->args_node_connect.node != DSP_HGPPNODE) {
find_node_handle(&node_res1, pr_ctxt,
args->args_node_connect.node);
if (node_res1)
node1 = node_res1->node;
} else {
node1 = args->args_node_connect.node;
}
if ((int)args->args_node_connect.other_node != DSP_HGPPNODE) {
find_node_handle(&node_res2, pr_ctxt,
args->args_node_connect.other_node);
if (node_res2)
node2 = node_res2->node;
} else {
node2 = args->args_node_connect.other_node;
}
if (!node1 || !node2)
return -EFAULT;
/* Optional argument */
if (psize) {
if (get_user(cb_data_size, psize))
status = -EPERM;
cb_data_size += sizeof(u32);
if (!status) {
pargs = kmalloc(cb_data_size, GFP_KERNEL);
if (pargs == NULL) {
status = -ENOMEM;
goto func_cont;
}
}
CP_FM_USR(pargs, args->args_node_connect.conn_param, status,
cb_data_size);
if (status)
goto func_cont;
}
if (args->args_node_connect.attrs) { /* Optional argument */
CP_FM_USR(&attrs, args->args_node_connect.attrs, status, 1);
if (!status)
pattrs = &attrs;
}
if (!status) {
status = node_connect(node1,
args->args_node_connect.stream_id,
node2,
args->args_node_connect.other_stream,
pattrs, (struct dsp_cbdata *)pargs);
}
func_cont:
kfree(pargs);
return status;
}
/*
* ======== nodewrap_create ========
*/
u32 nodewrap_create(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_create.node);
if (!node_res)
return -EFAULT;
ret = node_create(node_res->node);
return ret;
}
/*
* ======== nodewrap_delete ========
*/
u32 nodewrap_delete(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_delete.node);
if (!node_res)
return -EFAULT;
ret = node_delete(node_res, pr_ctxt);
return ret;
}
/*
* ======== nodewrap_free_msg_buf ========
*/
u32 nodewrap_free_msg_buf(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_bufferattr *pattr = NULL;
struct dsp_bufferattr attr;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_freemsgbuf.node);
if (!node_res)
return -EFAULT;
if (args->args_node_freemsgbuf.attr) { /* Optional argument */
CP_FM_USR(&attr, args->args_node_freemsgbuf.attr, status, 1);
if (!status)
pattr = &attr;
}
if (!args->args_node_freemsgbuf.buffer)
return -EFAULT;
if (!status) {
status = node_free_msg_buf(node_res->node,
args->args_node_freemsgbuf.buffer,
pattr);
}
return status;
}
/*
* ======== nodewrap_get_attr ========
*/
u32 nodewrap_get_attr(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_nodeattr attr;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_getattr.node);
if (!node_res)
return -EFAULT;
status = node_get_attr(node_res->node, &attr,
args->args_node_getattr.attr_size);
CP_TO_USR(args->args_node_getattr.attr, &attr, status, 1);
return status;
}
/*
* ======== nodewrap_get_message ========
*/
u32 nodewrap_get_message(union trapped_args *args, void *pr_ctxt)
{
int status;
struct dsp_msg msg;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_getmessage.node);
if (!node_res)
return -EFAULT;
status = node_get_message(node_res->node, &msg,
args->args_node_getmessage.timeout);
CP_TO_USR(args->args_node_getmessage.message, &msg, status, 1);
return status;
}
/*
* ======== nodewrap_pause ========
*/
u32 nodewrap_pause(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_pause.node);
if (!node_res)
return -EFAULT;
ret = node_pause(node_res->node);
return ret;
}
/*
* ======== nodewrap_put_message ========
*/
u32 nodewrap_put_message(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_msg msg;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_putmessage.node);
if (!node_res)
return -EFAULT;
CP_FM_USR(&msg, args->args_node_putmessage.message, status, 1);
if (!status) {
status =
node_put_message(node_res->node, &msg,
args->args_node_putmessage.timeout);
}
return status;
}
/*
* ======== nodewrap_register_notify ========
*/
u32 nodewrap_register_notify(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_notification notification;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt,
args->args_node_registernotify.node);
if (!node_res)
return -EFAULT;
/* Initialize the notification data structure */
notification.name = NULL;
notification.handle = NULL;
if (!args->args_proc_register_notify.event_mask)
CP_FM_USR(¬ification,
args->args_proc_register_notify.notification,
status, 1);
status = node_register_notify(node_res->node,
args->args_node_registernotify.event_mask,
args->args_node_registernotify.
notify_type, ¬ification);
CP_TO_USR(args->args_node_registernotify.notification, ¬ification,
status, 1);
return status;
}
/*
* ======== nodewrap_run ========
*/
u32 nodewrap_run(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_run.node);
if (!node_res)
return -EFAULT;
ret = node_run(node_res->node);
return ret;
}
/*
* ======== nodewrap_terminate ========
*/
u32 nodewrap_terminate(union trapped_args *args, void *pr_ctxt)
{
int status;
int tempstatus;
struct node_res_object *node_res;
find_node_handle(&node_res, pr_ctxt, args->args_node_terminate.node);
if (!node_res)
return -EFAULT;
status = node_terminate(node_res->node, &tempstatus);
CP_TO_USR(args->args_node_terminate.status, &tempstatus, status, 1);
return status;
}
/*
* ======== nodewrap_get_uuid_props ========
*/
u32 nodewrap_get_uuid_props(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_uuid node_uuid;
struct dsp_ndbprops *pnode_props = NULL;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
CP_FM_USR(&node_uuid, args->args_node_getuuidprops.node_id_ptr, status,
1);
if (status)
goto func_cont;
pnode_props = kmalloc(sizeof(struct dsp_ndbprops), GFP_KERNEL);
if (pnode_props != NULL) {
status =
node_get_uuid_props(hprocessor, &node_uuid, pnode_props);
CP_TO_USR(args->args_node_getuuidprops.node_props, pnode_props,
status, 1);
} else
status = -ENOMEM;
func_cont:
kfree(pnode_props);
return status;
}
/*
* ======== find_strm_handle =========
*/
inline void find_strm_handle(struct strm_res_object **strmres,
void *pr_ctxt, void *hstream)
{
rcu_read_lock();
*strmres = idr_find(((struct process_context *)pr_ctxt)->stream_id,
(int)hstream - 1);
rcu_read_unlock();
return;
}
/*
* ======== strmwrap_allocate_buffer ========
*/
u32 strmwrap_allocate_buffer(union trapped_args *args, void *pr_ctxt)
{
int status;
u8 **ap_buffer = NULL;
u32 num_bufs = args->args_strm_allocatebuffer.num_bufs;
struct strm_res_object *strm_res;
find_strm_handle(&strm_res, pr_ctxt,
args->args_strm_allocatebuffer.stream);
if (!strm_res)
return -EFAULT;
if (num_bufs > MAX_BUFS)
return -EINVAL;
ap_buffer = kmalloc((num_bufs * sizeof(u8 *)), GFP_KERNEL);
if (ap_buffer == NULL)
return -ENOMEM;
status = strm_allocate_buffer(strm_res,
args->args_strm_allocatebuffer.size,
ap_buffer, num_bufs, pr_ctxt);
if (!status) {
CP_TO_USR(args->args_strm_allocatebuffer.ap_buffer, ap_buffer,
status, num_bufs);
if (status) {
status = -EFAULT;
strm_free_buffer(strm_res,
ap_buffer, num_bufs, pr_ctxt);
}
}
kfree(ap_buffer);
return status;
}
/*
* ======== strmwrap_close ========
*/
u32 strmwrap_close(union trapped_args *args, void *pr_ctxt)
{
struct strm_res_object *strm_res;
find_strm_handle(&strm_res, pr_ctxt, args->args_strm_close.stream);
if (!strm_res)
return -EFAULT;
return strm_close(strm_res, pr_ctxt);
}
/*
* ======== strmwrap_free_buffer ========
*/
u32 strmwrap_free_buffer(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
u8 **ap_buffer = NULL;
u32 num_bufs = args->args_strm_freebuffer.num_bufs;
struct strm_res_object *strm_res;
find_strm_handle(&strm_res, pr_ctxt,
args->args_strm_freebuffer.stream);
if (!strm_res)
return -EFAULT;
if (num_bufs > MAX_BUFS)
return -EINVAL;
ap_buffer = kmalloc((num_bufs * sizeof(u8 *)), GFP_KERNEL);
if (ap_buffer == NULL)
return -ENOMEM;
CP_FM_USR(ap_buffer, args->args_strm_freebuffer.ap_buffer, status,
num_bufs);
if (!status)
status = strm_free_buffer(strm_res,
ap_buffer, num_bufs, pr_ctxt);
CP_TO_USR(args->args_strm_freebuffer.ap_buffer, ap_buffer, status,
num_bufs);
kfree(ap_buffer);
return status;
}
/*
* ======== strmwrap_get_event_handle ========
*/
u32 __deprecated strmwrap_get_event_handle(union trapped_args * args,
void *pr_ctxt)
{
pr_err("%s: deprecated dspbridge ioctl\n", __func__);
return -ENOSYS;
}
/*
* ======== strmwrap_get_info ========
*/
u32 strmwrap_get_info(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct stream_info strm_info;
struct dsp_streaminfo user;
struct dsp_streaminfo *temp;
struct strm_res_object *strm_res;
find_strm_handle(&strm_res, pr_ctxt,
args->args_strm_getinfo.stream);
if (!strm_res)
return -EFAULT;
CP_FM_USR(&strm_info, args->args_strm_getinfo.stream_info, status, 1);
temp = strm_info.user_strm;
strm_info.user_strm = &user;
if (!status) {
status = strm_get_info(strm_res->stream,
&strm_info,
args->args_strm_getinfo.
stream_info_size);
}
CP_TO_USR(temp, strm_info.user_strm, status, 1);
strm_info.user_strm = temp;
CP_TO_USR(args->args_strm_getinfo.stream_info, &strm_info, status, 1);
return status;
}
/*
* ======== strmwrap_idle ========
*/
u32 strmwrap_idle(union trapped_args *args, void *pr_ctxt)
{
u32 ret;
struct strm_res_object *strm_res;
find_strm_handle(&strm_res, pr_ctxt, args->args_strm_idle.stream);
if (!strm_res)
return -EFAULT;
ret = strm_idle(strm_res->stream, args->args_strm_idle.flush_flag);
return ret;
}
/*
* ======== strmwrap_issue ========
*/
u32 strmwrap_issue(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct strm_res_object *strm_res;
find_strm_handle(&strm_res, pr_ctxt, args->args_strm_issue.stream);
if (!strm_res)
return -EFAULT;
if (!args->args_strm_issue.buffer)
return -EFAULT;
/* No need of doing CP_FM_USR for the user buffer (pbuffer)
as this is done in Bridge internal function bridge_chnl_add_io_req
in chnl_sm.c */
status = strm_issue(strm_res->stream,
args->args_strm_issue.buffer,
args->args_strm_issue.bytes,
args->args_strm_issue.buf_size,
args->args_strm_issue.arg);
return status;
}
/*
* ======== strmwrap_open ========
*/
u32 strmwrap_open(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct strm_attr attr;
struct strm_res_object *strm_res_obj;
struct dsp_streamattrin strm_attr_in;
struct node_res_object *node_res;
int strmid;
find_node_handle(&node_res, pr_ctxt, args->args_strm_open.node);
if (!node_res)
return -EFAULT;
CP_FM_USR(&attr, args->args_strm_open.attr_in, status, 1);
if (attr.stream_attr_in != NULL) { /* Optional argument */
CP_FM_USR(&strm_attr_in, attr.stream_attr_in, status, 1);
if (!status) {
attr.stream_attr_in = &strm_attr_in;
if (attr.stream_attr_in->strm_mode == STRMMODE_LDMA)
return -ENOSYS;
}
}
status = strm_open(node_res->node,
args->args_strm_open.direction,
args->args_strm_open.index, &attr, &strm_res_obj,
pr_ctxt);
if (!status) {
strmid = strm_res_obj->id + 1;
CP_TO_USR(args->args_strm_open.stream, &strmid, status, 1);
}
return status;
}
/*
* ======== strmwrap_reclaim ========
*/
u32 strmwrap_reclaim(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
u8 *buf_ptr;
u32 ul_bytes;
u32 dw_arg;
u32 ul_buf_size;
struct strm_res_object *strm_res;
find_strm_handle(&strm_res, pr_ctxt, args->args_strm_reclaim.stream);
if (!strm_res)
return -EFAULT;
status = strm_reclaim(strm_res->stream, &buf_ptr,
&ul_bytes, &ul_buf_size, &dw_arg);
CP_TO_USR(args->args_strm_reclaim.buf_ptr, &buf_ptr, status, 1);
CP_TO_USR(args->args_strm_reclaim.bytes, &ul_bytes, status, 1);
CP_TO_USR(args->args_strm_reclaim.arg, &dw_arg, status, 1);
if (args->args_strm_reclaim.buf_size_ptr != NULL) {
CP_TO_USR(args->args_strm_reclaim.buf_size_ptr, &ul_buf_size,
status, 1);
}
return status;
}
/*
* ======== strmwrap_register_notify ========
*/
u32 strmwrap_register_notify(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct dsp_notification notification;
struct strm_res_object *strm_res;
find_strm_handle(&strm_res, pr_ctxt,
args->args_strm_registernotify.stream);
if (!strm_res)
return -EFAULT;
/* Initialize the notification data structure */
notification.name = NULL;
notification.handle = NULL;
status = strm_register_notify(strm_res->stream,
args->args_strm_registernotify.event_mask,
args->args_strm_registernotify.
notify_type, ¬ification);
CP_TO_USR(args->args_strm_registernotify.notification, ¬ification,
status, 1);
return status;
}
/*
* ======== strmwrap_select ========
*/
u32 strmwrap_select(union trapped_args *args, void *pr_ctxt)
{
u32 mask;
struct strm_object *strm_tab[MAX_STREAMS];
int status = 0;
struct strm_res_object *strm_res;
int *ids[MAX_STREAMS];
int i;
if (args->args_strm_select.strm_num > MAX_STREAMS)
return -EINVAL;
CP_FM_USR(ids, args->args_strm_select.stream_tab, status,
args->args_strm_select.strm_num);
if (status)
return status;
for (i = 0; i < args->args_strm_select.strm_num; i++) {
find_strm_handle(&strm_res, pr_ctxt, ids[i]);
if (!strm_res)
return -EFAULT;
strm_tab[i] = strm_res->stream;
}
if (!status) {
status = strm_select(strm_tab, args->args_strm_select.strm_num,
&mask, args->args_strm_select.timeout);
}
CP_TO_USR(args->args_strm_select.mask, &mask, status, 1);
return status;
}
/* CMM */
/*
* ======== cmmwrap_calloc_buf ========
*/
u32 __deprecated cmmwrap_calloc_buf(union trapped_args * args, void *pr_ctxt)
{
/* This operation is done in kernel */
pr_err("%s: deprecated dspbridge ioctl\n", __func__);
return -ENOSYS;
}
/*
* ======== cmmwrap_free_buf ========
*/
u32 __deprecated cmmwrap_free_buf(union trapped_args * args, void *pr_ctxt)
{
/* This operation is done in kernel */
pr_err("%s: deprecated dspbridge ioctl\n", __func__);
return -ENOSYS;
}
/*
* ======== cmmwrap_get_handle ========
*/
u32 cmmwrap_get_handle(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct cmm_object *hcmm_mgr;
void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
status = cmm_get_handle(hprocessor, &hcmm_mgr);
CP_TO_USR(args->args_cmm_gethandle.cmm_mgr, &hcmm_mgr, status, 1);
return status;
}
/*
* ======== cmmwrap_get_info ========
*/
u32 cmmwrap_get_info(union trapped_args *args, void *pr_ctxt)
{
int status = 0;
struct cmm_info cmm_info_obj;
status = cmm_get_info(args->args_cmm_getinfo.cmm_mgr, &cmm_info_obj);
CP_TO_USR(args->args_cmm_getinfo.cmm_info_obj, &cmm_info_obj, status,
1);
return status;
}