![Justin P. Mattock](/assets/img/avatar_default.png)
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
594 lines
19 KiB
C
594 lines
19 KiB
C
/*
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* proc.h
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*
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* DSP-BIOS Bridge driver support functions for TI OMAP processors.
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*
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* This is the DSP API RM module interface.
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*
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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*
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* This package is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef PROC_
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#define PROC_
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#include <dspbridge/cfgdefs.h>
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#include <dspbridge/devdefs.h>
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#include <dspbridge/drv.h>
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extern char *iva_img;
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/*
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* ======== proc_attach ========
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* Purpose:
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* Prepare for communication with a particular DSP processor, and return
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* a handle to the processor object. The PROC Object gets created
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* Parameters:
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* processor_id : The processor index (zero-based).
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* hmgr_obj : Handle to the Manager Object
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* attr_in : Ptr to the dsp_processorattrin structure.
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* A NULL value means use default values.
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* ph_processor : Ptr to location to store processor handle.
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* Returns:
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* 0 : Success.
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* -EPERM : General failure.
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* -EFAULT : Invalid processor handle.
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* 0: Success; Processor already attached.
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* Requires:
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* ph_processor != NULL.
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* PROC Initialized.
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* Ensures:
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* -EPERM, and *ph_processor == NULL, OR
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* Success and *ph_processor is a Valid Processor handle OR
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* 0 and *ph_processor is a Valid Processor.
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* Details:
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* When attr_in is NULL, the default timeout value is 10 seconds.
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*/
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extern int proc_attach(u32 processor_id,
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const struct dsp_processorattrin
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*attr_in, void **ph_processor,
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struct process_context *pr_ctxt);
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/*
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* ======== proc_auto_start =========
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* Purpose:
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* A Particular device gets loaded with the default image
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* if the AutoStart flag is set.
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* Parameters:
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* hdev_obj : Handle to the Device
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* Returns:
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* 0 : On Successful Loading
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* -ENOENT : No DSP exec file found.
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* -EPERM : General Failure
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* Requires:
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* hdev_obj != NULL.
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* dev_node_obj != NULL.
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* PROC Initialized.
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* Ensures:
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*/
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extern int proc_auto_start(struct cfg_devnode *dev_node_obj,
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struct dev_object *hdev_obj);
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/*
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* ======== proc_ctrl ========
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* Purpose:
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* Pass control information to the GPP device driver managing the DSP
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* processor. This will be an OEM-only function, and not part of the
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* 'Bridge application developer's API.
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* Parameters:
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* hprocessor : The processor handle.
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* dw_cmd : Private driver IOCTL cmd ID.
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* pargs : Ptr to an driver defined argument structure.
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* Returns:
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* 0 : SUCCESS
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* -EFAULT : Invalid processor handle.
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* -ETIME: A Timeout Occurred before the Control information
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* could be sent.
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* -EPERM : General Failure.
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* Requires:
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* PROC Initialized.
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* Ensures
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* Details:
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* This function Calls bridge_dev_ctrl.
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*/
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extern int proc_ctrl(void *hprocessor,
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u32 dw_cmd, struct dsp_cbdata *arg);
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/*
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* ======== proc_detach ========
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* Purpose:
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* Close a DSP processor and de-allocate all (GPP) resources reserved
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* for it. The Processor Object is deleted.
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* Parameters:
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* pr_ctxt : The processor handle.
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* Returns:
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* 0 : Success.
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* -EFAULT : InValid Handle.
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* -EPERM : General failure.
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* Requires:
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* PROC Initialized.
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* Ensures:
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* PROC Object is destroyed.
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*/
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extern int proc_detach(struct process_context *pr_ctxt);
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/*
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* ======== proc_enum_nodes ========
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* Purpose:
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* Enumerate the nodes currently allocated on a processor.
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* Parameters:
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* hprocessor : The processor handle.
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* node_tab : The first Location of an array allocated for node
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* handles.
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* node_tab_size: The number of (DSP_HNODE) handles that can be held
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* to the memory the client has allocated for node_tab
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* pu_num_nodes : Location where DSPProcessor_EnumNodes will return
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* the number of valid handles written to node_tab
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* pu_allocated : Location where DSPProcessor_EnumNodes will return
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* the number of nodes that are allocated on the DSP.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EINVAL : The amount of memory allocated for node_tab is
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* insufficent. That is the number of nodes actually
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* allocated on the DSP is greater than the value
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* specified for node_tab_size.
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* -EPERM : Unable to get Resource Information.
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* Details:
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* Requires
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* pu_num_nodes is not NULL.
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* pu_allocated is not NULL.
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* node_tab is not NULL.
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* PROC Initialized.
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* Ensures:
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* Details:
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*/
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extern int proc_enum_nodes(void *hprocessor,
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void **node_tab,
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u32 node_tab_size,
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u32 *pu_num_nodes,
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u32 *pu_allocated);
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/*
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* ======== proc_get_resource_info ========
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* Purpose:
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* Enumerate the resources currently available on a processor.
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* Parameters:
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* hprocessor : The processor handle.
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* resource_type: Type of resource .
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* resource_info: Ptr to the dsp_resourceinfo structure.
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* resource_info_size: Size of the structure.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EBADR: The processor is not in the PROC_RUNNING state.
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* -ETIME: A timeout occurred before the DSP responded to the
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* querry.
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* -EPERM : Unable to get Resource Information
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* Requires:
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* resource_info is not NULL.
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* Parameter resource_type is Valid.[TBD]
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* resource_info_size is >= sizeof dsp_resourceinfo struct.
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* PROC Initialized.
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* Ensures:
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* Details:
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* This function currently returns
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* -ENOSYS, and does not write any data to the resource_info struct.
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*/
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extern int proc_get_resource_info(void *hprocessor,
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u32 resource_type,
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struct dsp_resourceinfo
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*resource_info,
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u32 resource_info_size);
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/*
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* ======== proc_get_dev_object =========
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* Purpose:
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* Returns the DEV Hanlde for a given Processor handle
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* Parameters:
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* hprocessor : Processor Handle
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* device_obj : Location to store the DEV Handle.
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* Returns:
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* 0 : Success; *device_obj has Dev handle
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* -EPERM : Failure; *device_obj is zero.
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* Requires:
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* device_obj is not NULL
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* PROC Initialized.
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* Ensures:
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* 0 : *device_obj is not NULL
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* -EPERM : *device_obj is NULL.
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*/
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extern int proc_get_dev_object(void *hprocessor,
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struct dev_object **device_obj);
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/*
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* ======== proc_get_state ========
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* Purpose:
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* Report the state of the specified DSP processor.
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* Parameters:
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* hprocessor : The processor handle.
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* proc_state_obj : Ptr to location to store the dsp_processorstate
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* structure.
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* state_info_size: Size of dsp_processorstate.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EPERM : General failure while querying processor state.
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* Requires:
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* proc_state_obj is not NULL
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* state_info_size is >= than the size of dsp_processorstate structure.
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* PROC Initialized.
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* Ensures:
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* Details:
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*/
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extern int proc_get_state(void *hprocessor, struct dsp_processorstate
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*proc_state_obj, u32 state_info_size);
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/*
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* ======== PROC_GetProcessorID ========
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* Purpose:
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* Report the state of the specified DSP processor.
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* Parameters:
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* hprocessor : The processor handle.
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* proc_id : Processor ID
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*
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EPERM : General failure while querying processor state.
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* Requires:
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* proc_state_obj is not NULL
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* state_info_size is >= than the size of dsp_processorstate structure.
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* PROC Initialized.
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* Ensures:
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* Details:
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*/
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extern int proc_get_processor_id(void *proc, u32 * proc_id);
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/*
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* ======== proc_get_trace ========
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* Purpose:
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* Retrieve the trace buffer from the specified DSP processor.
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* Parameters:
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* hprocessor : The processor handle.
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* pbuf : Ptr to buffer to hold trace output.
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* max_size : Maximum size of the output buffer.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EPERM : General failure while retrieving processor trace
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* Buffer.
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* Requires:
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* pbuf is not NULL
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* max_size is > 0.
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* PROC Initialized.
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* Ensures:
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* Details:
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*/
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extern int proc_get_trace(void *hprocessor, u8 * pbuf, u32 max_size);
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/*
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* ======== proc_load ========
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* Purpose:
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* Reset a processor and load a new base program image.
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* This will be an OEM-only function.
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* Parameters:
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* hprocessor: The processor handle.
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* argc_index: The number of Arguments(strings)in the aArgV[]
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* user_args: An Array of Arguments(Unicode Strings)
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* user_envp: An Array of Environment settings(Unicode Strings)
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* Returns:
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* 0: Success.
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* -ENOENT: The DSP Execuetable was not found.
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* -EFAULT: Invalid processor handle.
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* -EPERM : Unable to Load the Processor
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* Requires:
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* user_args is not NULL
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* argc_index is > 0
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* PROC Initialized.
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* Ensures:
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* Success and ProcState == PROC_LOADED
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* or DSP_FAILED status.
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* Details:
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* Does not implement access rights to control which GPP application
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* can load the processor.
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*/
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extern int proc_load(void *hprocessor,
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const s32 argc_index, const char **user_args,
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const char **user_envp);
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/*
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* ======== proc_register_notify ========
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* Purpose:
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* Register to be notified of specific processor events
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* Parameters:
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* hprocessor : The processor handle.
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* event_mask : Mask of types of events to be notified about.
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* notify_type : Type of notification to be sent.
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* hnotification: Handle to be used for notification.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle or hnotification.
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* -EINVAL : Parameter event_mask is Invalid
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* DSP_ENOTIMP : The notification type specified in uNotifyMask
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* is not supported.
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* -EPERM : Unable to register for notification.
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* Requires:
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* hnotification is not NULL
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* PROC Initialized.
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* Ensures:
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* Details:
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*/
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extern int proc_register_notify(void *hprocessor,
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u32 event_mask, u32 notify_type,
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struct dsp_notification
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*hnotification);
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/*
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* ======== proc_notify_clients ========
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* Purpose:
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* Notify the Processor Clients
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* Parameters:
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* proc : The processor handle.
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* events : Event to be notified about.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EPERM : Failure to Set or Reset the Event
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* Requires:
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* events is Supported or Valid type of Event
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* proc is a valid handle
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* PROC Initialized.
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* Ensures:
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*/
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extern int proc_notify_clients(void *proc, u32 events);
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/*
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* ======== proc_notify_all_clients ========
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* Purpose:
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* Notify the Processor Clients
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* Parameters:
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* proc : The processor handle.
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* events : Event to be notified about.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EPERM : Failure to Set or Reset the Event
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* Requires:
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* events is Supported or Valid type of Event
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* proc is a valid handle
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* PROC Initialized.
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* Ensures:
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* Details:
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* NODE And STRM would use this function to notify their clients
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* about the state changes in NODE or STRM.
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*/
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extern int proc_notify_all_clients(void *proc, u32 events);
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/*
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* ======== proc_start ========
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* Purpose:
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* Start a processor running.
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* Processor must be in PROC_LOADED state.
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* This will be an OEM-only function, and not part of the 'Bridge
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* application developer's API.
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* Parameters:
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* hprocessor : The processor handle.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EBADR: Processor is not in PROC_LOADED state.
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* -EPERM : Unable to start the processor.
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* Requires:
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* PROC Initialized.
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* Ensures:
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* Success and ProcState == PROC_RUNNING or DSP_FAILED status.
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* Details:
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*/
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extern int proc_start(void *hprocessor);
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/*
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* ======== proc_stop ========
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* Purpose:
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* Start a processor running.
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* Processor must be in PROC_LOADED state.
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* This will be an OEM-only function, and not part of the 'Bridge
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* application developer's API.
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* Parameters:
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* hprocessor : The processor handle.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EBADR: Processor is not in PROC_LOADED state.
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* -EPERM : Unable to start the processor.
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* Requires:
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* PROC Initialized.
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* Ensures:
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* Success and ProcState == PROC_RUNNING or DSP_FAILED status.
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* Details:
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*/
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extern int proc_stop(void *hprocessor);
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/*
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* ======== proc_end_dma ========
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* Purpose:
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* Begin a DMA transfer
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* Parameters:
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* hprocessor : The processor handle.
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* pmpu_addr : Buffer start address
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* ul_size : Buffer size
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* dir : The direction of the transfer
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* Requires:
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* Memory was previously mapped.
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*/
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extern int proc_end_dma(void *hprocessor, void *pmpu_addr, u32 ul_size,
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enum dma_data_direction dir);
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/*
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* ======== proc_begin_dma ========
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* Purpose:
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* Begin a DMA transfer
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* Parameters:
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* hprocessor : The processor handle.
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* pmpu_addr : Buffer start address
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* ul_size : Buffer size
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* dir : The direction of the transfer
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* Requires:
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* Memory was previously mapped.
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*/
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extern int proc_begin_dma(void *hprocessor, void *pmpu_addr, u32 ul_size,
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enum dma_data_direction dir);
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/*
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* ======== proc_flush_memory ========
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* Purpose:
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* Flushes a buffer from the MPU data cache.
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* Parameters:
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* hprocessor : The processor handle.
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* pmpu_addr : Buffer start address
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* ul_size : Buffer size
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* ul_flags : Reserved.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EPERM : General failure.
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* Requires:
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* PROC Initialized.
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* Ensures:
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* Details:
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* All the arguments are currently ignored.
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*/
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extern int proc_flush_memory(void *hprocessor,
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void *pmpu_addr, u32 ul_size, u32 ul_flags);
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/*
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* ======== proc_invalidate_memory ========
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* Purpose:
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* Invalidates a buffer from the MPU data cache.
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* Parameters:
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* hprocessor : The processor handle.
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* pmpu_addr : Buffer start address
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* ul_size : Buffer size
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EPERM : General failure.
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* Requires:
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* PROC Initialized.
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* Ensures:
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* Details:
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* All the arguments are currently ignored.
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*/
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extern int proc_invalidate_memory(void *hprocessor,
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void *pmpu_addr, u32 ul_size);
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/*
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* ======== proc_map ========
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* Purpose:
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* Maps a MPU buffer to DSP address space.
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* Parameters:
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* hprocessor : The processor handle.
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* pmpu_addr : Starting address of the memory region to map.
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* ul_size : Size of the memory region to map.
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* req_addr : Requested DSP start address. Offset-adjusted actual
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* mapped address is in the last argument.
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* pp_map_addr : Ptr to DSP side mapped u8 address.
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* ul_map_attr : Optional endianness attributes, virt to phys flag.
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* Returns:
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* 0 : Success.
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* -EFAULT : Invalid processor handle.
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* -EPERM : General failure.
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* -ENOMEM : MPU side memory allocation error.
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* -ENOENT : Cannot find a reserved region starting with this
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* : address.
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* Requires:
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* pmpu_addr is not NULL
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* ul_size is not zero
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* pp_map_addr is not NULL
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* PROC Initialized.
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* Ensures:
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* Details:
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*/
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extern int proc_map(void *hprocessor,
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void *pmpu_addr,
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u32 ul_size,
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void *req_addr,
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void **pp_map_addr, u32 ul_map_attr,
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struct process_context *pr_ctxt);
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/*
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* ======== proc_reserve_memory ========
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* Purpose:
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* Reserve a virtually contiguous region of DSP address space.
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* Parameters:
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* hprocessor : The processor handle.
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* ul_size : Size of the address space to reserve.
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|
* pp_rsv_addr : Ptr to DSP side reserved u8 address.
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|
* Returns:
|
|
* 0 : Success.
|
|
* -EFAULT : Invalid processor handle.
|
|
* -EPERM : General failure.
|
|
* -ENOMEM : Cannot reserve chunk of this size.
|
|
* Requires:
|
|
* pp_rsv_addr is not NULL
|
|
* PROC Initialized.
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|
* Ensures:
|
|
* Details:
|
|
*/
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|
extern int proc_reserve_memory(void *hprocessor,
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|
u32 ul_size, void **pp_rsv_addr,
|
|
struct process_context *pr_ctxt);
|
|
|
|
/*
|
|
* ======== proc_un_map ========
|
|
* Purpose:
|
|
* Removes a MPU buffer mapping from the DSP address space.
|
|
* Parameters:
|
|
* hprocessor : The processor handle.
|
|
* map_addr : Starting address of the mapped memory region.
|
|
* Returns:
|
|
* 0 : Success.
|
|
* -EFAULT : Invalid processor handle.
|
|
* -EPERM : General failure.
|
|
* -ENOENT : Cannot find a mapped region starting with this
|
|
* : address.
|
|
* Requires:
|
|
* map_addr is not NULL
|
|
* PROC Initialized.
|
|
* Ensures:
|
|
* Details:
|
|
*/
|
|
extern int proc_un_map(void *hprocessor, void *map_addr,
|
|
struct process_context *pr_ctxt);
|
|
|
|
/*
|
|
* ======== proc_un_reserve_memory ========
|
|
* Purpose:
|
|
* Frees a previously reserved region of DSP address space.
|
|
* Parameters:
|
|
* hprocessor : The processor handle.
|
|
* prsv_addr : Ptr to DSP side reservedBYTE address.
|
|
* Returns:
|
|
* 0 : Success.
|
|
* -EFAULT : Invalid processor handle.
|
|
* -EPERM : General failure.
|
|
* -ENOENT : Cannot find a reserved region starting with this
|
|
* : address.
|
|
* Requires:
|
|
* prsv_addr is not NULL
|
|
* PROC Initialized.
|
|
* Ensures:
|
|
* Details:
|
|
*/
|
|
extern int proc_un_reserve_memory(void *hprocessor,
|
|
void *prsv_addr,
|
|
struct process_context *pr_ctxt);
|
|
|
|
#endif /* PROC_ */
|