diff options
Diffstat (limited to 'drivers/media/usb/pvrusb2/pvrusb2-context.h')
| -rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-context.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-context.h b/drivers/media/usb/pvrusb2/pvrusb2-context.h new file mode 100644 index 0000000000..5840b2ce8f --- /dev/null +++ b/drivers/media/usb/pvrusb2/pvrusb2-context.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * + * Copyright (C) 2005 Mike Isely <isely@pobox.com> + */ +#ifndef __PVRUSB2_CONTEXT_H +#define __PVRUSB2_CONTEXT_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_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_context *exist_next; + struct pvr2_context *exist_prev; + struct pvr2_context *notify_next; + struct pvr2_context *notify_prev; + struct pvr2_hdw *hdw; + struct pvr2_context_stream video_stream; + struct mutex mutex; + int notify_flag; + int initialized_flag; + int disconnect_flag; + + /* Called after pvr2_context initialization is complete */ + void (*setup_func)(struct pvr2_context *); + +}; + +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; + unsigned int input_mask; + void (*check_func)(struct pvr2_channel *); +}; + +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_limit_inputs(struct pvr2_channel *,unsigned int); +unsigned int pvr2_channel_get_limited_inputs(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 *); + +int pvr2_context_global_init(void); +void pvr2_context_global_done(void); + +#endif /* __PVRUSB2_CONTEXT_H */ |