path: root/drivers/staging/wlan-ng/prism2fw.c

/* from src/prism2/download/prism2dl.c
*
* utility for downloading prism2 images moved into kernelspace
*
* Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
* --------------------------------------------------------------------
*
* linux-wlan
*
*   The contents of this file are subject to the Mozilla Public
*   License Version 1.1 (the "License"); you may not use this file
*   except in compliance with the License. You may obtain a copy of
*   the License at http://www.mozilla.org/MPL/
*
*   Software distributed under the License is distributed on an "AS
*   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
*   implied. See the License for the specific language governing
*   rights and limitations under the License.
*
*   Alternatively, the contents of this file may be used under the
*   terms of the GNU Public License version 2 (the "GPL"), in which
*   case the provisions of the GPL are applicable instead of the
*   above.  If you wish to allow the use of your version of this file
*   only under the terms of the GPL and not to allow others to use
*   your version of this file under the MPL, indicate your decision
*   by deleting the provisions above and replace them with the notice
*   and other provisions required by the GPL.  If you do not delete
*   the provisions above, a recipient may use your version of this
*   file under either the MPL or the GPL.
*
* --------------------------------------------------------------------
*
* Inquiries regarding the linux-wlan Open Source project can be
* made directly to:
*
* AbsoluteValue Systems Inc.
* info@linux-wlan.com
* http://www.linux-wlan.com
*
* --------------------------------------------------------------------
*
* Portions of the development of this software were funded by
* Intersil Corporation as part of PRISM(R) chipset product development.
*
* --------------------------------------------------------------------
*/

/*================================================================*/
/* System Includes */
#include <linux/ihex.h>
#include <linux/slab.h>

/*================================================================*/
/* Local Constants */

#define PRISM2_USB_FWFILE	"prism2_ru.fw"
MODULE_FIRMWARE(PRISM2_USB_FWFILE);

#define S3DATA_MAX		5000
#define S3PLUG_MAX		200
#define S3CRC_MAX		200
#define S3INFO_MAX		50

#define S3ADDR_PLUG		(0xff000000UL)
#define S3ADDR_CRC		(0xff100000UL)
#define S3ADDR_INFO		(0xff200000UL)
#define S3ADDR_START		(0xff400000UL)

#define CHUNKS_MAX		100

#define WRITESIZE_MAX		4096

/*================================================================*/
/* Local Types */

struct s3datarec {
	u32 len;
	u32 addr;
	u8 checksum;
	u8 *data;
};

struct s3plugrec {
	u32 itemcode;
	u32 addr;
	u32 len;
};

struct s3crcrec {
	u32 addr;
	u32 len;
	unsigned int dowrite;
};

struct s3inforec {
	u16 len;
	u16 type;
	union {
		hfa384x_compident_t version;
		hfa384x_caplevel_t compat;
		u16 buildseq;
		hfa384x_compident_t platform;
	} info;
};

struct pda {
	u8 buf[HFA384x_PDA_LEN_MAX];
	hfa384x_pdrec_t *rec[HFA384x_PDA_RECS_MAX];
	unsigned int nrec;
};

struct imgchunk {
	u32 addr;	/* start address */
	u32 len;	/* in bytes */
	u16 crc;	/* CRC value (if it falls at a chunk boundary) */
	u8 *data;
};

/*================================================================*/
/* Local Static Definitions */

/*----------------------------------------------------------------*/
/* s-record image processing */

/* Data records */
unsigned int ns3data;
struct s3datarec s3data[S3DATA_MAX];

/* Plug records */
unsigned int ns3plug;
struct s3plugrec s3plug[S3PLUG_MAX];

/* CRC records */
unsigned int ns3crc;
struct s3crcrec s3crc[S3CRC_MAX];

/* Info records */
unsigned int ns3info;
struct s3inforec s3info[S3INFO_MAX];

/* S7 record (there _better_ be only one) */
u32 startaddr;

/* Load image chunks */
unsigned int nfchunks;
struct imgchunk fchunk[CHUNKS_MAX];

/* Note that for the following pdrec_t arrays, the len and code */
/*   fields are stored in HOST byte order. The mkpdrlist() function */
/*   does the conversion.  */
/*----------------------------------------------------------------*/
/* PDA, built from [card|newfile]+[addfile1+addfile2...] */

struct pda pda;
hfa384x_compident_t nicid;
hfa384x_caplevel_t rfid;
hfa384x_caplevel_t macid;
hfa384x_caplevel_t priid;

/*================================================================*/
/* Local Function Declarations */

static int prism2_fwapply(const struct ihex_binrec *rfptr,
wlandevice_t *wlandev);

static int read_fwfile(const struct ihex_binrec *rfptr);

static int mkimage(struct imgchunk *clist, unsigned int *ccnt);

static int read_cardpda(struct pda *pda, wlandevice_t *wlandev);

static int mkpdrlist(struct pda *pda);

static int plugimage(struct imgchunk *fchunk, unsigned int nfchunks,
	      struct