ALSA: Add support of AudioScience ASI boards
Added the support of AudioScience ASI boards.
The driver has been tested for years on alsa-driver external tree,
now finally got merged to the kernel.
Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/asihpi/hpidspcd.h b/sound/pci/asihpi/hpidspcd.h
new file mode 100644
index 0000000..d7c2403
--- /dev/null
+++ b/sound/pci/asihpi/hpidspcd.h
@@ -0,0 +1,104 @@
+/***********************************************************************/
+/**
+
+ AudioScience HPI driver
+ Copyright (C) 1997-2010 AudioScience Inc. <support@audioscience.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of version 2 of the GNU General Public License as
+ published by the Free Software Foundation;
+
+ 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+\file
+Functions for reading DSP code to load into DSP
+
+ hpi_dspcode_defines HPI DSP code loading method
+Define exactly one of these to select how the DSP code is supplied to
+the adapter.
+
+End users writing applications that use the HPI interface do not have to
+use any of the below defines; they are only necessary for building drivers
+
+HPI_DSPCODE_FILE:
+DSP code is supplied as a file that is opened and read from by the driver.
+
+HPI_DSPCODE_FIRMWARE:
+DSP code is read using the hotplug firmware loader module.
+ Only valid when compiling the HPI kernel driver under Linux.
+*/
+/***********************************************************************/
+#ifndef _HPIDSPCD_H_
+#define _HPIDSPCD_H_
+
+#include "hpi_internal.h"
+
+#ifndef DISABLE_PRAGMA_PACK1
+#pragma pack(push, 1)
+#endif
+
+/** Descriptor for dspcode from firmware loader */
+struct dsp_code {
+ /** Firmware descriptor */
+ const struct firmware *ps_firmware;
+ struct pci_dev *ps_dev;
+ /** Expected number of words in the whole dsp code,INCL header */
+ long int block_length;
+ /** Number of words read so far */
+ long int word_count;
+ /** Version read from dsp code file */
+ u32 version;
+ /** CRC read from dsp code file */
+ u32 crc;
+};
+
+#ifndef DISABLE_PRAGMA_PACK1
+#pragma pack(pop)
+#endif
+
+/** Prepare *psDspCode to refer to the requuested adapter.
+ Searches the file, or selects the appropriate linked array
+
+\return 0 for success, or error code if requested code is not available
+*/
+short hpi_dsp_code_open(
+ /** Code identifier, usually adapter family */
+ u32 adapter,
+ /** Pointer to DSP code control structure */
+ struct dsp_code *ps_dsp_code,
+ /** Pointer to dword to receive OS specific error code */
+ u32 *pos_error_code);
+
+/** Close the DSP code file */
+void hpi_dsp_code_close(struct dsp_code *ps_dsp_code);
+
+/** Rewind to the beginning of the DSP code file (for verify) */
+void hpi_dsp_code_rewind(struct dsp_code *ps_dsp_code);
+
+/** Read one word from the dsp code file
+ \return 0 for success, or error code if eof, or block length exceeded
+*/
+short hpi_dsp_code_read_word(struct dsp_code *ps_dsp_code,
+ /**< DSP code descriptor */
+ u32 *pword /**< where to store the read word */
+ );
+
+/** Get a block of dsp code into an internal buffer, and provide a pointer to
+that buffer. (If dsp code is already an array in memory, it is referenced,
+not copied.)
+
+\return Error if requested number of words are not available
+*/
+short hpi_dsp_code_read_block(size_t words_requested,
+ struct dsp_code *ps_dsp_code,
+ /* Pointer to store (Pointer to code buffer) */
+ u32 **ppblock);
+
+#endif