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author | Mike Isely <isely@isely.net> | 2006-06-26 20:58:46 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-06-27 00:17:15 -0300 |
commit | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba (patch) | |
tree | b39bef23fc00c91dac73ae171ad6ba7261170918 /drivers/media/video/pvrusb2/pvrusb2-context.h | |
parent | eb99adde31b7d85c67a5e1c2fa5e098e1056dd79 (diff) | |
download | op-kernel-dev-d855497edbfbf9e19a17f4a1154bca69cb4bd9ba.zip op-kernel-dev-d855497edbfbf9e19a17f4a1154bca69cb4bd9ba.tar.gz |
V4L/DVB (4228a): pvrusb2 to kernel 2.6.18
Implement V4L2 driver for the Hauppauge PVR USB2 TV tuner.
The Hauppauge PVR USB2 is a USB connected TV tuner with an embedded
cx23416 hardware MPEG2 encoder. There are two major variants of this
device; this driver handles both. Any V4L2 application which
understands MPEG2 video stream data should be able to work with this
device.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-context.h')
-rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-context.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-context.h b/drivers/media/video/pvrusb2/pvrusb2-context.h new file mode 100644 index 0000000..6327fa1 --- /dev/null +++ b/drivers/media/video/pvrusb2/pvrusb2-context.h @@ -0,0 +1,92 @@ +/* + * $Id$ + * + * Copyright (C) 2005 Mike Isely <isely@pobox.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#ifndef __PVRUSB2_BASE_H +#define __PVRUSB2_BASE_H + +#include <linux/mutex.h> +#include <linux/usb.h> +#include <linux/workqueue.h> + +struct pvr2_hdw; /* hardware interface - defined elsewhere */ +struct pvr2_stream; /* stream interface - defined elsewhere */ + +struct pvr2_context; /* All central state */ +struct pvr2_channel; /* One I/O pathway to a user */ +struct pvr2_context_stream; /* Wrapper for a stream */ +struct pvr2_crit_reg; /* Critical region pointer */ +struct pvr2_ioread; /* Low level stream structure */ + +struct pvr2_context_stream { + struct pvr2_channel *user; + struct pvr2_stream *stream; +}; + +struct pvr2_context { + struct pvr2_channel *mc_first; + struct pvr2_channel *mc_last; + struct pvr2_hdw *hdw; + struct pvr2_context_stream video_stream; + struct mutex mutex; + int disconnect_flag; + + /* Called after pvr2_context initialization is complete */ + void (*setup_func)(struct pvr2_context *); + + /* Work queue overhead for out-of-line processing */ + struct workqueue_struct *workqueue; + struct work_struct workinit; + struct work_struct workpoll; +}; + +struct pvr2_channel { + struct pvr2_context *mc_head; + struct pvr2_channel *mc_next; + struct pvr2_channel *mc_prev; + struct pvr2_context_stream *stream; + struct pvr2_hdw *hdw; + void (*check_func)(struct pvr2_channel *); +}; + +void pvr2_context_enter(struct pvr2_context *); +void pvr2_context_exit(struct pvr2_context *); + +struct pvr2_context *pvr2_context_create(struct usb_interface *intf, + const struct usb_device_id *devid, + void (*setup_func)(struct pvr2_context *)); +void pvr2_context_disconnect(struct pvr2_context *); + +void pvr2_channel_init(struct pvr2_channel *,struct pvr2_context *); +void pvr2_channel_done(struct pvr2_channel *); +int pvr2_channel_claim_stream(struct pvr2_channel *, + struct pvr2_context_stream *); +struct pvr2_ioread *pvr2_channel_create_mpeg_stream( + struct pvr2_context_stream *); + + +#endif /* __PVRUSB2_CONTEXT_H */ +/* + Stuff for Emacs to see, in order to encourage consistent editing style: + *** Local Variables: *** + *** mode: c *** + *** fill-column: 75 *** + *** tab-width: 8 *** + *** c-basic-offset: 8 *** + *** End: *** + */ |