diff options
Diffstat (limited to 'drivers/staging/cx25821/cx25821-audio.h')
-rw-r--r-- | drivers/staging/cx25821/cx25821-audio.h | 117 |
1 files changed, 57 insertions, 60 deletions
diff --git a/drivers/staging/cx25821/cx25821-audio.h b/drivers/staging/cx25821/cx25821-audio.h index 1e1351800ba..503f42f036a 100644 --- a/drivers/staging/cx25821/cx25821-audio.h +++ b/drivers/staging/cx25821/cx25821-audio.h @@ -1,60 +1,57 @@ -/*
- * Driver for the Conexant CX25821 PCIe bridge
- *
- * Copyright (C) 2009 Conexant Systems Inc.
- * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.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, or
- * (at your option) any later version.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __CX25821_AUDIO_H__
-#define __CX25821_AUDIO_H__
-
-
-#define USE_RISC_NOOP 1
-#define LINES_PER_BUFFER 15
-#define AUDIO_LINE_SIZE 128
-
-//Number of buffer programs to use at once.
-#define NUMBER_OF_PROGRAMS 8
-
-//Max size of the RISC program for a buffer. - worst case is 2 writes per line
-// Space is also added for the 4 no-op instructions added on the end.
-
-#ifndef USE_RISC_NOOP
-#define MAX_BUFFER_PROGRAM_SIZE \
- (2*LINES_PER_BUFFER*RISC_WRITE_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE*4)
-#endif
-
-// MAE 12 July 2005 Try to use NOOP RISC instruction instead
-#ifdef USE_RISC_NOOP
-#define MAX_BUFFER_PROGRAM_SIZE \
- (2*LINES_PER_BUFFER*RISC_WRITE_INSTRUCTION_SIZE + RISC_NOOP_INSTRUCTION_SIZE*4)
-#endif
-
-
-//Sizes of various instructions in bytes. Used when adding instructions.
-#define RISC_WRITE_INSTRUCTION_SIZE 12
-#define RISC_JUMP_INSTRUCTION_SIZE 12
-#define RISC_SKIP_INSTRUCTION_SIZE 4
-#define RISC_SYNC_INSTRUCTION_SIZE 4
-#define RISC_WRITECR_INSTRUCTION_SIZE 16
-#define RISC_NOOP_INSTRUCTION_SIZE 4
-
-#define MAX_AUDIO_DMA_BUFFER_SIZE (MAX_BUFFER_PROGRAM_SIZE * NUMBER_OF_PROGRAMS + RISC_SYNC_INSTRUCTION_SIZE)
-
-#endif
-
+/* + * Driver for the Conexant CX25821 PCIe bridge + * + * Copyright (C) 2009 Conexant Systems Inc. + * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.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, or + * (at your option) any later version. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __CX25821_AUDIO_H__ +#define __CX25821_AUDIO_H__ + +#define USE_RISC_NOOP 1 +#define LINES_PER_BUFFER 15 +#define AUDIO_LINE_SIZE 128 + +//Number of buffer programs to use at once. +#define NUMBER_OF_PROGRAMS 8 + +//Max size of the RISC program for a buffer. - worst case is 2 writes per line +// Space is also added for the 4 no-op instructions added on the end. + +#ifndef USE_RISC_NOOP +#define MAX_BUFFER_PROGRAM_SIZE \ + (2*LINES_PER_BUFFER*RISC_WRITE_INSTRUCTION_SIZE + RISC_WRITECR_INSTRUCTION_SIZE*4) +#endif + +// MAE 12 July 2005 Try to use NOOP RISC instruction instead +#ifdef USE_RISC_NOOP +#define MAX_BUFFER_PROGRAM_SIZE \ + (2*LINES_PER_BUFFER*RISC_WRITE_INSTRUCTION_SIZE + RISC_NOOP_INSTRUCTION_SIZE*4) +#endif + +//Sizes of various instructions in bytes. Used when adding instructions. +#define RISC_WRITE_INSTRUCTION_SIZE 12 +#define RISC_JUMP_INSTRUCTION_SIZE 12 +#define RISC_SKIP_INSTRUCTION_SIZE 4 +#define RISC_SYNC_INSTRUCTION_SIZE 4 +#define RISC_WRITECR_INSTRUCTION_SIZE 16 +#define RISC_NOOP_INSTRUCTION_SIZE 4 + +#define MAX_AUDIO_DMA_BUFFER_SIZE (MAX_BUFFER_PROGRAM_SIZE * NUMBER_OF_PROGRAMS + RISC_SYNC_INSTRUCTION_SIZE) + +#endif |