diff options
Diffstat (limited to 'sound/pci/asihpi/hpidspcd.h')
| -rw-r--r-- | sound/pci/asihpi/hpidspcd.h | 72 |
1 files changed, 39 insertions, 33 deletions
diff --git a/sound/pci/asihpi/hpidspcd.h b/sound/pci/asihpi/hpidspcd.h index 65f0ca732704..b22881122f19 100644 --- a/sound/pci/asihpi/hpidspcd.h +++ b/sound/pci/asihpi/hpidspcd.h @@ -2,7 +2,7 @@ /** AudioScience HPI driver - Copyright (C) 1997-2010 AudioScience Inc. <support@audioscience.com> + Copyright (C) 1997-2011 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 @@ -20,19 +20,6 @@ \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_ @@ -40,37 +27,56 @@ DSP code is read using the hotplug firmware loader module. #include "hpi_internal.h" -#ifndef DISABLE_PRAGMA_PACK1 -#pragma pack(push, 1) -#endif +/** Code header version is decimal encoded e.g. 4.06.10 is 40601 */ +#define HPI_VER_DECIMAL ((int)(HPI_VER_MAJOR(HPI_VER) * 10000 + \ +HPI_VER_MINOR(HPI_VER) * 100 + HPI_VER_RELEASE(HPI_VER))) + +/** Header structure for dsp firmware file + This structure must match that used in s2bin.c for generation of asidsp.bin + */ +/*#ifndef DISABLE_PRAGMA_PACK1 */ +/*#pragma pack(push, 1) */ +/*#endif */ +struct code_header { + /** Size in bytes including header */ + u32 size; + /** File type tag "CODE" == 0x45444F43 */ + u32 type; + /** Adapter model number */ + u32 adapter; + /** Firmware version*/ + u32 version; + /** Data checksum */ + u32 checksum; +}; +/*#ifndef DISABLE_PRAGMA_PACK1 */ +/*#pragma pack(pop) */ +/*#endif */ + +/*? Don't need the pragmas? */ +compile_time_assert((sizeof(struct code_header) == 20), code_header_size); /** Descriptor for dspcode from firmware loader */ struct dsp_code { - /** Firmware descriptor */ - const struct firmware *ps_firmware; - struct pci_dev *ps_dev; + /** copy of file header */ + struct code_header header; /** Expected number of words in the whole dsp code,INCL header */ - long int block_length; + u32 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; -}; + u32 word_count; -#ifndef DISABLE_PRAGMA_PACK1 -#pragma pack(pop) -#endif + /** internal state of DSP code reader */ + struct dsp_code_private *pvt; +}; -/** Prepare *psDspCode to refer to the requuested adapter. - Searches the file, or selects the appropriate linked array +/** Prepare *psDspCode to refer to the requested adapter's firmware. +Code file name is obtained from HpiOs_GetDspCodePath \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, + u32 adapter, void *pci_dev, /** Pointer to DSP code control structure */ struct dsp_code *ps_dsp_code, /** Pointer to dword to receive OS specific error code */ |