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- /*
- * 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
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