diff options
Diffstat (limited to 'drivers/staging/dt3155/dt3155_isr.h')
-rw-r--r-- | drivers/staging/dt3155/dt3155_isr.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/staging/dt3155/dt3155_isr.h b/drivers/staging/dt3155/dt3155_isr.h new file mode 100644 index 00000000000..7595cb16c98 --- /dev/null +++ b/drivers/staging/dt3155/dt3155_isr.h @@ -0,0 +1,77 @@ +/* + +Copyright 1996,2002 Gregory D. Hager, Alfred A. Rizzi, Noah J. Cowan, + Jason Lapenta, Scott Smedley + +This file is part of the DT3155 Device Driver. + +The DT3155 Device Driver 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, or (at your option) any later version. + +The DT3155 Device Driver 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 the DT3155 Device Driver; if not, write to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, +MA 02111-1307 USA + + +-- Changes -- + + Date Programmer Description of changes made + ------------------------------------------------------------------- + 03-Jul-2000 JML n/a + 24-Jul-2002 SS GPL licence. + 26-Oct-2009 SS Porting to 2.6.30 kernel. + +-- notes -- + +*/ + +#ifndef DT3155_ISR_H +#define DT3155_ISR_H + +extern struct dt3155_fbuffer_s *dt3155_fbuffer[MAXBOARDS]; + +/* User functions for buffering */ +/* Initialize the buffering system. This should */ +/* be called prior to enabling interrupts */ + +u32 dt3155_setup_buffers(u32 *allocatorAddr); + +/* Get the next frame of data if it is ready. Returns */ +/* zero if no data is ready. If there is data but */ +/* the user has a locked buffer, it will unlock that */ +/* buffer and return it to the free list. */ + +int dt3155_get_ready_buffer(int minor); + +/* Return a locked buffer to the free list */ + +void dt3155_release_locked_buffer(int minor); + +/* Flush the buffer system */ +int dt3155_flush(int minor); + +/********************************** + * Simple array based que struct + **********************************/ + +bool are_empty_buffers(int minor); +void push_empty(int index, int minor); + +int pop_empty(int minor); + +bool is_ready_buf_empty(int minor); +bool is_ready_buf_full(int minor); + +void push_ready(int minor, int index); +int pop_ready(int minor); + + +#endif |