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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 12:13:30 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:36:22 -0300
commitb285192a43f0432d82c2c10974204e78af0da596 (patch)
tree618aa87e760c9c949eca9e4df6ae0eeffa11dcfc /drivers/media/pci/cx25821/cx25821-audio.h
parent68de959f773a1d49096835c411390bceff5d1549 (diff)
[media] rename most media/video pci drivers to media/pci
Rename all PCI drivers with their own directory under drivers/media/video into drivers/media/pci and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/cx25821/cx25821-audio.h')
-rw-r--r--drivers/media/pci/cx25821/cx25821-audio.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-audio.h b/drivers/media/pci/cx25821/cx25821-audio.h
new file mode 100644
index 000000000000..1fc2d24f5110
--- /dev/null
+++ b/drivers/media/pci/cx25821/cx25821-audio.h
@@ -0,0 +1,62 @@
+/*
+ * 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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