projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| c4ca3d5a ORL |
1 | /* |
| 2 | * msg.c | |
| 3 | * | |
| 4 | * DSP-BIOS Bridge driver support functions for TI OMAP processors. | |
| 5 | * | |
| 6 | * DSP/BIOS Bridge msg_ctrl Module. | |
| 7 | * | |
| 8 | * Copyright (C) 2005-2006 Texas Instruments, Inc. | |
| 9 | * | |
| 10 | * This package is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License version 2 as | |
| 12 | * published by the Free Software Foundation. | |
| 13 | * | |
| 14 | * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 15 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 16 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 17 | */ | |
| 2094f12d | 18 | #include <linux/types.h> |
| c4ca3d5a ORL |
19 | |
| 20 | /* ----------------------------------- Host OS */ | |
| 21 | #include <dspbridge/host_os.h> | |
| 22 | ||
| 23 | /* ----------------------------------- DSP/BIOS Bridge */ | |
| c4ca3d5a ORL |
24 | #include <dspbridge/dbdefs.h> |
| 25 | ||
| c4ca3d5a ORL |
26 | /* ----------------------------------- Bridge Driver */ |
| 27 | #include <dspbridge/dspdefs.h> | |
| 28 | ||
| 29 | /* ----------------------------------- Platform Manager */ | |
| 30 | #include <dspbridge/dev.h> | |
| 31 | ||
| 32 | /* ----------------------------------- This */ | |
| 33 | #include <msgobj.h> | |
| 34 | #include <dspbridge/msg.h> | |
| 35 | ||
| c4ca3d5a ORL |
36 | /* |
| 37 | * ======== msg_create ======== | |
| 38 | * Purpose: | |
| 39 | * Create an object to manage message queues. Only one of these objects | |
| 40 | * can exist per device object. | |
| 41 | */ | |
| e6bf74f0 | 42 | int msg_create(struct msg_mgr **msg_man, |
| 95870a88 | 43 | struct dev_object *hdev_obj, msg_onexit msg_callback) |
| c4ca3d5a ORL |
44 | { |
| 45 | struct bridge_drv_interface *intf_fxns; | |
| 46 | struct msg_mgr_ *msg_mgr_obj; | |
| 47 | struct msg_mgr *hmsg_mgr; | |
| 48 | int status = 0; | |
| 49 | ||
| e436d07d | 50 | *msg_man = NULL; |
| c4ca3d5a ORL |
51 | |
| 52 | dev_get_intf_fxns(hdev_obj, &intf_fxns); | |
| 53 | ||
| 54 | /* Let Bridge message module finish the create: */ | |
| 55 | status = | |
| 09f13304 | 56 | (*intf_fxns->msg_create) (&hmsg_mgr, hdev_obj, msg_callback); |
| c4ca3d5a | 57 | |
| 157990f0 | 58 | if (!status) { |
| c4ca3d5a ORL |
59 | /* Fill in DSP API message module's fields of the msg_mgr |
| 60 | * structure */ | |
| 61 | msg_mgr_obj = (struct msg_mgr_ *)hmsg_mgr; | |
| 62 | msg_mgr_obj->intf_fxns = intf_fxns; | |
| 63 | ||
| 64 | /* Finally, return the new message manager handle: */ | |
| e436d07d | 65 | *msg_man = hmsg_mgr; |
| c4ca3d5a ORL |
66 | } else { |
| 67 | status = -EPERM; | |
| 68 | } | |
| 69 | return status; | |
| 70 | } | |
| 71 | ||
| 72 | /* | |
| 73 | * ======== msg_delete ======== | |
| 74 | * Purpose: | |
| 75 | * Delete a msg_ctrl manager allocated in msg_create(). | |
| 76 | */ | |
| 77 | void msg_delete(struct msg_mgr *hmsg_mgr) | |
| 78 | { | |
| 79 | struct msg_mgr_ *msg_mgr_obj = (struct msg_mgr_ *)hmsg_mgr; | |
| 80 | struct bridge_drv_interface *intf_fxns; | |
| 81 | ||
| c4ca3d5a ORL |
82 | if (msg_mgr_obj) { |
| 83 | intf_fxns = msg_mgr_obj->intf_fxns; | |
| 84 | ||
| 85 | /* Let Bridge message module destroy the msg_mgr: */ | |
| 09f13304 | 86 | (*intf_fxns->msg_delete) (hmsg_mgr); |
| c4ca3d5a ORL |
87 | } else { |
| 88 | dev_dbg(bridge, "%s: Error hmsg_mgr handle: %p\n", | |
| 89 | __func__, hmsg_mgr); | |
| 90 | } | |
| 91 | } |