| Mike Isely | d855497 | 2006-06-26 20:58:46 -0300 | [diff] [blame] | 1 | /* |
| 2 | * $Id$ |
| 3 | * |
| 4 | * Copyright (C) 2005 Mike Isely <isely@pobox.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | */ |
| 20 | #ifndef __PVRUSB2_BASE_H |
| 21 | #define __PVRUSB2_BASE_H |
| 22 | |
| 23 | #include <linux/mutex.h> |
| 24 | #include <linux/usb.h> |
| 25 | #include <linux/workqueue.h> |
| 26 | |
| 27 | struct pvr2_hdw; /* hardware interface - defined elsewhere */ |
| 28 | struct pvr2_stream; /* stream interface - defined elsewhere */ |
| 29 | |
| 30 | struct pvr2_context; /* All central state */ |
| 31 | struct pvr2_channel; /* One I/O pathway to a user */ |
| 32 | struct pvr2_context_stream; /* Wrapper for a stream */ |
| 33 | struct pvr2_crit_reg; /* Critical region pointer */ |
| 34 | struct pvr2_ioread; /* Low level stream structure */ |
| 35 | |
| 36 | struct pvr2_context_stream { |
| 37 | struct pvr2_channel *user; |
| 38 | struct pvr2_stream *stream; |
| 39 | }; |
| 40 | |
| 41 | struct pvr2_context { |
| 42 | struct pvr2_channel *mc_first; |
| 43 | struct pvr2_channel *mc_last; |
| 44 | struct pvr2_hdw *hdw; |
| 45 | struct pvr2_context_stream video_stream; |
| 46 | struct mutex mutex; |
| 47 | int disconnect_flag; |
| 48 | |
| 49 | /* Called after pvr2_context initialization is complete */ |
| 50 | void (*setup_func)(struct pvr2_context *); |
| 51 | |
| 52 | /* Work queue overhead for out-of-line processing */ |
| 53 | struct workqueue_struct *workqueue; |
| 54 | struct work_struct workinit; |
| 55 | struct work_struct workpoll; |
| 56 | }; |
| 57 | |
| 58 | struct pvr2_channel { |
| 59 | struct pvr2_context *mc_head; |
| 60 | struct pvr2_channel *mc_next; |
| 61 | struct pvr2_channel *mc_prev; |
| 62 | struct pvr2_context_stream *stream; |
| 63 | struct pvr2_hdw *hdw; |
| 64 | void (*check_func)(struct pvr2_channel *); |
| 65 | }; |
| 66 | |
| 67 | void pvr2_context_enter(struct pvr2_context *); |
| 68 | void pvr2_context_exit(struct pvr2_context *); |
| 69 | |
| 70 | struct pvr2_context *pvr2_context_create(struct usb_interface *intf, |
| 71 | const struct usb_device_id *devid, |
| 72 | void (*setup_func)(struct pvr2_context *)); |
| 73 | void pvr2_context_disconnect(struct pvr2_context *); |
| 74 | |
| 75 | void pvr2_channel_init(struct pvr2_channel *,struct pvr2_context *); |
| 76 | void pvr2_channel_done(struct pvr2_channel *); |
| 77 | int pvr2_channel_claim_stream(struct pvr2_channel *, |
| 78 | struct pvr2_context_stream *); |
| 79 | struct pvr2_ioread *pvr2_channel_create_mpeg_stream( |
| 80 | struct pvr2_context_stream *); |
| 81 | |
| 82 | |
| 83 | #endif /* __PVRUSB2_CONTEXT_H */ |
| 84 | /* |
| 85 | Stuff for Emacs to see, in order to encourage consistent editing style: |
| 86 | *** Local Variables: *** |
| 87 | *** mode: c *** |
| 88 | *** fill-column: 75 *** |
| 89 | *** tab-width: 8 *** |
| 90 | *** c-basic-offset: 8 *** |
| 91 | *** End: *** |
| 92 | */ |