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- /* 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 */
- static unsigned int ns3data;
- static struct s3datarec s3data[S3DATA_MAX];
- /* Plug records */
- static unsigned int ns3plug;
- static struct s3plugrec s3plug[S3PLUG_MAX];
- /* CRC records */
- static unsigned int ns3crc;
- static struct s3crcrec s3crc[S3CRC_MAX];
- /* Info records */
- static unsigned int ns3info;
- static struct s3inforec s3info[S3INFO_MAX];
- /* S7 record (there _better_ be only one) */
- static u32 startaddr;
- /* Load image chunks */
- static unsigned int nfchunks;
- static 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...] */
- static struct pda pda;
- static hfa384x_compident_t nicid;
- static hfa384x_caplevel_t rfid;
- static hfa384x_caplevel_t macid;
- static 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 s3plugrec *s3plug, unsigned int ns3plug, struct pda *pda);
- static int crcimage(struct imgchunk *fchunk, unsigned int nfchunks,
- struct s3crcrec *s3crc, unsigned int ns3crc);
- static int writeimage(wlandevice_t *wlandev, struct imgchunk *fchunk,
- unsigned int nfchunks);
- static void free_chunks(struct imgchunk *fchunk, unsigned int *nfchunks);
- static void free_srecs(void);
- static int validate_identity(void);
- /*================================================================*/
- /* Function Definitions */
- /*----------------------------------------------------------------
- * prism2_fwtry
- *
- * Try and get firmware into memory
- *
- * Arguments:
- * udev usb device structure
- * wlandev wlan device structure
- *
- * Returns:
- * 0 - success
- * ~0 - failure
- ----------------------------------------------------------------*/
- static int prism2_fwtry(struct usb_device *udev, wlandevice_t *wlandev)
- {
- const struct firmware *fw_entry = NULL;
- netdev_info(wlandev->netdev, "prism2_usb: Checking for firmware %s\n",
- PRISM2_USB_FWFILE);
- if (request_ihex_firmware(&fw_entry,
- PRISM2_USB_FWFILE, &udev->dev) != 0) {
- netdev_info(wlandev->netdev,
- "prism2_usb: Firmware not available, but not essential\n");
- netdev_info(wlandev->netdev,
- "prism2_usb: can continue to use card anyway.\n");
- return 1;
- }
- netdev_info(wlandev->netdev,
- "prism2_usb: %s will be processed, size %zu\n",
- PRISM2_USB_FWFILE, fw_entry->size);
- prism2_fwapply((const struct ihex_binrec *)fw_entry->data, wlandev);
- release_firmware(fw_entry);
- return 0;
- }
- /*----------------------------------------------------------------
- * prism2_fwapply
- *
- * Apply the firmware loaded into memory
- *
- * Arguments:
- * rfptr firmware image in kernel memory
- * wlandev device
- *
- * Returns:
- * 0 - success
- * ~0 - failure
- ----------------------------------------------------------------*/
- static int prism2_fwapply(const struct ihex_binrec *rfptr,
- wlandevice_t *wlandev)
- {
- signed int result = 0;
- struct p80211msg_dot11req_mibget getmsg;
- p80211itemd_t *item;
- u32 *data;
- /* Initialize the data structures */
- ns3data = 0;
- memset(s3data, 0, sizeof(s3data));
- ns3plug = 0;
- memset(s3plug, 0, sizeof(s3plug));
- ns3crc = 0;
- memset(s3crc, 0, sizeof(s3crc));
- ns3info = 0;
- memset(s3info, 0, sizeof(s3info));
- startaddr = 0;
- nfchunks = 0;
- memset(fchunk, 0, sizeof(fchunk));
- memset(&nicid, 0, sizeof(nicid));
- memset(&rfid, 0, sizeof(rfid));
- memset(&macid, 0, sizeof(macid));
- memset(&priid, 0, sizeof(priid));
- /* clear the pda and add an initial END record */
- memset(&pda, 0, sizeof(pda));
- pda.rec[0] = (hfa384x_pdrec_t *) pda.buf;
- pda.rec[0]->len = cpu_to_le16(2); /* len in words */
- pda.rec[0]->code = cpu_to_le16(HFA384x_PDR_END_OF_PDA);
- pda.nrec = 1;
- /*-----------------------------------------------------*/
- /* Put card into fwload state */
- prism2sta_ifstate(wlandev, P80211ENUM_ifstate_fwload);
- /* Build the PDA we're going to use. */
- if (read_cardpda(&pda, wlandev)) {
- netdev_err(wlandev->netdev, "load_cardpda failed, exiting.\n");
- return 1;
- }
- /* read the card's PRI-SUP */
- memset(&getmsg, 0, sizeof(getmsg));
- getmsg.msgcode = DIDmsg_dot11req_mibget;
- getmsg.msglen = sizeof(getmsg);
- strcpy(getmsg.devname, wlandev->name);
- getmsg.mibattribute.did = DIDmsg_dot11req_mibget_mibattribute;
- getmsg.mibattribute.status = P80211ENUM_msgitem_status_data_ok;
- getmsg.resultcode.did = DIDmsg_dot11req_mibget_resultcode;
- getmsg.resultcode.status = P80211ENUM_msgitem_status_no_value;
- item = (p80211itemd_t *) getmsg.mibattribute.data;
- item->did = DIDmib_p2_p2NIC_p2PRISupRange;
- item->status = P80211ENUM_msgitem_status_no_value;
- data = (u32 *) item->data;
- /* DIDmsg_dot11req_mibget */
- prism2mgmt_mibset_mibget(wlandev, &getmsg);
- if (getmsg.resultcode.data != P80211ENUM_resultcode_success)
- netdev_err(wlandev->netdev, "Couldn't fetch PRI-SUP info\n");
- /* Already in host order */
- priid.role = *data++;
- priid.id = *data++;
- priid.variant = *data++;
- priid.bottom = *data++;
- priid.top = *data++;
- /* Read the S3 file */
- result = read_fwfile(rfptr);
- if (result) {
- netdev_err(wlandev->netdev,
- "Failed to read the data exiting.\n");
- return 1;
- }
- result = validate_identity();
- if (result) {
- netdev_err(wlandev->netdev, "Incompatible firmware image.\n");
- return 1;
- }
- if (startaddr == 0x00000000) {
- netdev_err(wlandev->netdev,
- "Can't RAM download a Flash image!\n");
- return 1;
- }
- /* Make the image chunks */
- result = mkimage(fchunk, &nfchunks);
- /* Do any plugging */
- result = plugimage(fchunk, nfchunks, s3plug, ns3plug, &pda);
- if (result) {
- netdev_err(wlandev->netdev, "Failed to plug data.\n");
- return 1;
- }
- /* Insert any CRCs */
- if (crcimage(fchunk, nfchunks, s3crc, ns3crc)) {
- netdev_err(wlandev->netdev, "Failed to insert all CRCs\n");
- return 1;
- }
- /* Write the image */
- result = writeimage(wlandev, fchunk, nfchunks);
- if (result) {
- netdev_err(wlandev->netdev, "Failed to ramwrite image data.\n");
- return 1;
- }
- /* clear any allocated memory */
- free_chunks(fchunk, &nfchunks);
- free_srecs();
- netdev_info(wlandev->netdev, "prism2_usb: firmware loading finished.\n");
- return result;
- }
- /*----------------------------------------------------------------
- * crcimage
- *
- * Adds a CRC16 in the two bytes prior to each block identified by
- * an S3 CRC record. Currently, we don't actually do a CRC we just
- * insert the value 0xC0DE in hfa384x order.
- *
- * Arguments:
- * fchunk Array of image chunks
- * nfchunks Number of image chunks
- * s3crc Array of crc records
- * ns3crc Number of crc records
- *
- * Returns:
- * 0 success
- * ~0 failure
- ----------------------------------------------------------------*/
- static int crcimage(struct imgchunk *fchunk, unsigned int nfchunks,
- struct s3crcrec *s3crc, unsigned int ns3crc)
- {
- int result = 0;
- int i;
- int c;
- u32 crcstart;
- u32 crcend;
- u32 cstart = 0;
- u32 cend;
- u8 *dest;
- u32 chunkoff;
- for (i = 0; i < ns3crc; i++) {
- if (!s3crc[i].dowrite)
- continue;
- crcstart = s3crc[i].addr;
- crcend = s3crc[i].addr + s3crc[i].len;
- /* Find chunk */
- for (c = 0; c < nfchunks; c++) {
- cstart = fchunk[c].addr;
- cend = fchunk[c].addr + fchunk[c].len;
- /* the line below does an address & len match search */
- /* unfortunately, I've found that the len fields of */
- /* some crc records don't match with the length of */
- /* the actual data, so we're not checking right now */
- /* if (crcstart-2 >= cstart && crcend <= cend) break; */
- /* note the -2 below, it's to make sure the chunk has */
- /* space for the CRC value */
- if (crcstart - 2 >= cstart && crcstart < cend)
- break;
- }
- if (c >= nfchunks) {
- pr_err("Failed to find chunk for crcrec[%d], addr=0x%06x len=%d , aborting crc.\n",
- i, s3crc[i].addr, s3crc[i].len);
- return 1;
- }
- /* Insert crc */
- pr_debug("Adding crc @ 0x%06x\n", s3crc[i].addr - 2);
- chunkoff = crcstart - cstart - 2;
- dest = fchunk[c].data + chunkoff;
- *dest = 0xde;
- *(dest + 1) = 0xc0;
- }
- return result;
- }
- /*----------------------------------------------------------------
- * free_chunks
- *
- * Clears the chunklist data structures in preparation for a new file.
- *
- * Arguments:
- * none
- *
- * Returns:
- * nothing
- ----------------------------------------------------------------*/
- static void free_chunks(struct imgchunk *fchunk, unsigned int *nfchunks)
- {
- int i;
- for (i = 0; i < *nfchunks; i++)
- kfree(fchunk[i].data);
- *nfchunks = 0;
- memset(fchunk, 0, sizeof(*fchunk));
- }
- /*----------------------------------------------------------------
- * free_srecs
- *
- * Clears the srec data structures in preparation for a new file.
- *
- * Arguments:
- * none
- *
- * Returns:
- * nothing
- ----------------------------------------------------------------*/
- static void free_srecs(void)
- {
- ns3data = 0;
- memset(s3data, 0, sizeof(s3data));
- ns3plug = 0;
- memset(s3plug, 0, sizeof(s3plug));
- ns3crc = 0;
- memset(s3crc, 0, sizeof(s3crc));
- ns3info = 0;
- memset(s3info, 0, sizeof(s3info));
- startaddr = 0;
- }
- /*----------------------------------------------------------------
- * mkimage
- *
- * Scans the currently loaded set of S records for data residing
- * in contiguous memory regions. Each contiguous region is then
- * made into a 'chunk'. This function assumes that we're building
- * a new chunk list. Assumes the s3data items are in sorted order.
- *
- * Arguments: none
- *
- * Returns:
- * 0 - success
- * ~0 - failure (probably an errno)
- ----------------------------------------------------------------*/
- static int mkimage(struct imgchunk *clist, unsigned int *ccnt)
- {
- int result = 0;
- int i;
- int j;
- int currchunk = 0;
- u32 nextaddr = 0;
- u32 s3start;
- u32 s3end;
- u32 cstart = 0;
- u32 cend;
- u32 coffset;
- /* There may already be data in the chunklist */
- *ccnt = 0;
- /* Establish the location and size of each chunk */
- for (i = 0; i < ns3data; i++) {
- if (s3data[i].addr == nextaddr) {
- /* existing chunk, grow it */
- clist[currchunk].len += s3data[i].len;
- nextaddr += s3data[i].len;
- } else {
- /* New chunk */
- (*ccnt)++;
- currchunk = *ccnt - 1;
- clist[currchunk].addr = s3data[i].addr;
- clist[currchunk].len = s3data[i].len;
- nextaddr = s3data[i].addr + s3data[i].len;
- /* Expand the chunk if there is a CRC record at */
- /* their beginning bound */
- for (j = 0; j < ns3crc; j++) {
- if (s3crc[j].dowrite &&
- s3crc[j].addr == clist[currchunk].addr) {
- clist[currchunk].addr -= 2;
- clist[currchunk].len += 2;
- }
- }
- }
- }
- /* We're currently assuming there aren't any overlapping chunks */
- /* if this proves false, we'll need to add code to coalesce. */
- /* Allocate buffer space for chunks */
- for (i = 0; i < *ccnt; i++) {
- clist[i].data = kzalloc(clist[i].len, GFP_KERNEL);
- if (clist[i].data == NULL) {
- pr_err("failed to allocate image space, exitting.\n");
- return 1;
- }
- pr_debug("chunk[%d]: addr=0x%06x len=%d\n",
- i, clist[i].addr, clist[i].len);
- }
- /* Copy srec data to chunks */
- for (i = 0; i < ns3data; i++) {
- s3start = s3data[i].addr;
- s3end = s3start + s3data[i].len - 1;
- for (j = 0; j < *ccnt; j++) {
- cstart = clist[j].addr;
- cend = cstart + clist[j].len - 1;
- if (s3start >= cstart && s3end <= cend)
- break;
- }
- if (((unsigned int)j) >= (*ccnt)) {
- pr_err("s3rec(a=0x%06x,l=%d), no chunk match, exiting.\n",
- s3start, s3data[i].len);
- return 1;
- }
- coffset = s3start - cstart;
- memcpy(clist[j].data + coffset, s3data[i].data, s3data[i].len);
- }
- return result;
- }
- /*----------------------------------------------------------------
- * mkpdrlist
- *
- * Reads a raw PDA and builds an array of pdrec_t structures.
- *
- * Arguments:
- * pda buffer containing raw PDA bytes
- * pdrec ptr to an array of pdrec_t's. Will be filled on exit.
- * nrec ptr to a variable that will contain the count of PDRs
- *
- * Returns:
- * 0 - success
- * ~0 - failure (probably an errno)
- ----------------------------------------------------------------*/
- static int mkpdrlist(struct pda *pda)
- {
- u16 *pda16 = (u16 *) pda->buf;
- int curroff; /* in 'words' */
- pda->nrec = 0;
- curroff = 0;
- while (curroff < (HFA384x_PDA_LEN_MAX / 2 - 1) &&
- le16_to_cpu(pda16[curroff + 1]) != HFA384x_PDR_END_OF_PDA) {
- pda->rec[pda->nrec] = (hfa384x_pdrec_t *) &(pda16[curroff]);
- if (le16_to_cpu(pda->rec[pda->nrec]->code) ==
- HFA384x_PDR_NICID) {
- memcpy(&nicid, &pda->rec[pda->nrec]->data.nicid,
- sizeof(nicid));
- nicid.id = le16_to_cpu(nicid.id);
- nicid.variant = le16_to_cpu(nicid.variant);
- nicid.major = le16_to_cpu(nicid.major);
- nicid.minor = le16_to_cpu(nicid.minor);
- }
- if (le16_to_cpu(pda->rec[pda->nrec]->code) ==
- HFA384x_PDR_MFISUPRANGE) {
- memcpy(&rfid, &pda->rec[pda->nrec]->data.mfisuprange,
- sizeof(rfid));
- rfid.id = le16_to_cpu(rfid.id);
- rfid.variant = le16_to_cpu(rfid.variant);
- rfid.bottom = le16_to_cpu(rfid.bottom);
- rfid.top = le16_to_cpu(rfid.top);
- }
- if (le16_to_cpu(pda->rec[pda->nrec]->code) ==
- HFA384x_PDR_CFISUPRANGE) {
- memcpy(&macid, &pda->rec[pda->nrec]->data.cfisuprange,
- sizeof(macid));
- macid.id = le16_to_cpu(macid.id);
- macid.variant = le16_to_cpu(macid.variant);
- macid.bottom = le16_to_cpu(macid.bottom);
- macid.top = le16_to_cpu(macid.top);
- }
- (pda->nrec)++;
- curroff += le16_to_cpu(pda16[curroff]) + 1;
- }
- if (curroff >= (HFA384x_PDA_LEN_MAX / 2 - 1)) {
- pr_err("no end record found or invalid lengths in PDR data, exiting. %x %d\n",
- curroff, pda->nrec);
- return 1;
- }
- pda->rec[pda->nrec] = (hfa384x_pdrec_t *) &(pda16[curroff]);
- (pda->nrec)++;
- return 0;
- }
- /*----------------------------------------------------------------
- * plugimage
- *
- * Plugs the given image using the given plug records from the given
- * PDA and filename.
- *
- * Arguments:
- * fchunk Array of image chunks
- * nfchunks Number of image chunks
- * s3plug Array of plug records
- * ns3plug Number of plug records
- * pda Current pda data
- *
- * Returns:
- * 0 success
- * ~0 failure
- ----------------------------------------------------------------*/
- static int plugimage(struct imgchunk *fchunk, unsigned int nfchunks,
- struct s3plugrec *s3plug, unsigned int ns3plug, struct pda *pda)
- {
- int result = 0;
- int i; /* plug index */
- int j; /* index of PDR or -1 if fname plug */
- int c; /* chunk index */
- u32 pstart;
- u32 pend;
- u32 cstart = 0;
- u32 cend;
- u32 chunkoff;
- u8 *dest;
- /* for each plug record */
- for (i = 0; i < ns3plug; i++) {
- pstart = s3plug[i].addr;
- pend = s3plug[i].addr + s3plug[i].len;
- /* find the matching PDR (or filename) */
- if (s3plug[i].itemcode != 0xffffffffUL) { /* not filename */
- for (j = 0; j < pda->nrec; j++) {
- if (s3plug[i].itemcode ==
- le16_to_cpu(pda->rec[j]->code))
- break;
- }
- } else {
- j = -1;
- }
- if (j >= pda->nrec && j != -1) { /* if no matching PDR, fail */
- pr_warn("warning: Failed to find PDR for plugrec 0x%04x.\n",
- s3plug[i].itemcode);
- continue; /* and move on to the next PDR */
- #if 0
- /* MSM: They swear that unless it's the MAC address,
- * the serial number, or the TX calibration records,
- * then there's reasonable defaults in the f/w
- * image. Therefore, missing PDRs in the card
- * should only be a warning, not fatal.
- * TODO: add fatals for the PDRs mentioned above.
- */
- result = 1;
- continue;
- #endif
- }
- /* Validate plug len against PDR len */
- if (j != -1 && s3plug[i].len < le16_to_cpu(pda->rec[j]->len)) {
- pr_err("error: Plug vs. PDR len mismatch for plugrec 0x%04x, abort plugging.\n",
- s3plug[i].itemcode);
- result = 1;
- continue;
- }
- /*
- * Validate plug address against
- * chunk data and identify chunk
- */
- for (c = 0; c < nfchunks; c++) {
- cstart = fchunk[c].addr;
- cend = fchunk[c].addr + fchunk[c].len;
- if (pstart >= cstart && pend <= cend)
- break;
- }
- if (c >= nfchunks) {
- pr_err("error: Failed to find image chunk for plugrec 0x%04x.\n",
- s3plug[i].itemcode);
- result = 1;
- continue;
- }
- /* Plug data */
- chunkoff = pstart - cstart;
- dest = fchunk[c].data + chunkoff;
- pr_debug("Plugging item 0x%04x @ 0x%06x, len=%d, cnum=%d coff=0x%06x\n",
- s3plug[i].itemcode, pstart, s3plug[i].len,
- c, chunkoff);
- if (j == -1) { /* plug the filename */
- memset(dest, 0, s3plug[i].len);
- strncpy(dest, PRISM2_USB_FWFILE, s3plug[i].len - 1);
- } else { /* plug a PDR */
- memcpy(dest, &(pda->rec[j]->data), s3plug[i].len);
- }
- }
- return result;
- }
- /*----------------------------------------------------------------
- * read_cardpda
- *
- * Sends the command for the driver to read the pda from the card
- * named in the device variable. Upon success, the card pda is
- * stored in the "cardpda" variables. Note that the pda structure
- * is considered 'well formed' after this function. That means
- * that the nrecs is valid, the rec array has been set up, and there's
- * a valid PDAEND record in the raw PDA data.
- *
- * Arguments:
- * pda pda structure
- * wlandev device
- *
- * Returns:
- * 0 - success
- * ~0 - failure (probably an errno)
- ----------------------------------------------------------------*/
- static int read_cardpda(struct pda *pda, wlandevice_t *wlandev)
- {
- int result = 0;
- struct p80211msg_p2req_readpda *msg;
- msg = kzalloc(sizeof(*msg), GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
- /* set up the msg */
- msg->msgcode = DIDmsg_p2req_readpda;
- msg->msglen = sizeof(msg);
- strcpy(msg->devname, wlandev->name);
- msg->pda.did = DIDmsg_p2req_readpda_pda;
- msg->pda.len = HFA384x_PDA_LEN_MAX;
- msg->pda.status = P80211ENUM_msgitem_status_no_value;
- msg->resultcode.did = DIDmsg_p2req_readpda_resultcode;
- msg->resultcode.len = sizeof(u32);
- msg->resultcode.status = P80211ENUM_msgitem_status_no_value;
- if (prism2mgmt_readpda(wlandev, msg) != 0) {
- /* prism2mgmt_readpda prints an errno if appropriate */
- result = -1;
- } else if (msg->resultcode.data == P80211ENUM_resultcode_success) {
- memcpy(pda->buf, msg->pda.data, HFA384x_PDA_LEN_MAX);
- result = mkpdrlist(pda);
- } else {
- /* resultcode must've been something other than success */
- result = -1;
- }
- kfree(msg);
- return result;
- }
- /*----------------------------------------------------------------
- * read_fwfile
- *
- * Reads the given fw file which should have been compiled from an srec
- * file. Each record in the fw file will either be a plain data record,
- * a start address record, or other records used for plugging.
- *
- * Note that data records are expected to be sorted into
- * ascending address order in the fw file.
- *
- * Note also that the start address record, originally an S7 record in
- * the srec file, is expected in the fw file to be like a data record but
- * with a certain address to make it identifiable.
- *
- * Here's the SREC format that the fw should have come from:
- * S[37]nnaaaaaaaaddd...dddcc
- *
- * nn - number of bytes starting with the address field
- * aaaaaaaa - address in readable (or big endian) format
- * dd....dd - 0-245 data bytes (two chars per byte)
- * cc - checksum
- *
- * The S7 record's (there should be only one) address value gets
- * converted to an S3 record with address of 0xff400000, with the
- * start address being stored as a 4 byte data word. That address is
- * the start execution address used for RAM downloads.
- *
- * The S3 records have a collection of subformats indicated by the
- * value of aaaaaaaa:
- * 0xff000000 - Plug record, data field format:
- * xxxxxxxxaaaaaaaassssssss
- * x - PDR code number (little endian)
- * a - Address in load image to plug (little endian)
- * s - Length of plug data area (little endian)
- *
- * 0xff100000 - CRC16 generation record, data field format:
- * aaaaaaaassssssssbbbbbbbb
- * a - Start address for CRC calculation (little endian)
- * s - Length of data to calculate over (little endian)
- * b - Boolean, true=write crc, false=don't write
- *
- * 0xff200000 - Info record, data field format:
- * ssssttttdd..dd
- * s - Size in words (little endian)
- * t - Info type (little endian), see #defines and
- * struct s3inforec for details about types.
- * d - (s - 1) little endian words giving the contents of
- * the given info type.
- *
- * 0xff400000 - Start address record, data field format:
- * aaaaaaaa
- * a - Address in load image to plug (little endian)
- *
- * Arguments:
- * record firmware image (ihex record structure) in kernel memory
- *
- * Returns:
- * 0 - success
- * ~0 - failure (probably an errno)
- ----------------------------------------------------------------*/
- static int read_fwfile(const struct ihex_binrec *record)
- {
- int i;
- int rcnt = 0;
- u16 *tmpinfo;
- u16 *ptr16;
- u32 *ptr32, len, addr;
- pr_debug("Reading fw file ...\n");
- while (record) {
- rcnt++;
- len = be16_to_cpu(record->len);
- addr = be32_to_cpu(record->addr);
- /* Point into data for different word lengths */
- ptr32 = (u32 *) record->data;
- ptr16 = (u16 *) record->data;
- /* parse what was an S3 srec and put it in the right array */
- switch (addr) {
- case S3ADDR_START:
- startaddr = *ptr32;
- pr_debug(" S7 start addr, record=%d addr=0x%08x\n",
- rcnt,
- startaddr);
- break;
- case S3ADDR_PLUG:
- s3plug[ns3plug].itemcode = *ptr32;
- s3plug[ns3plug].addr = *(ptr32 + 1);
- s3plug[ns3plug].len = *(ptr32 + 2);
- pr_debug(" S3 plugrec, record=%d itemcode=0x%08x addr=0x%08x len=%d\n",
- rcnt,
- s3plug[ns3plug].itemcode,
- s3plug[ns3plug].addr,
- s3plug[ns3plug].len);
- ns3plug++;
- if (ns3plug == S3PLUG_MAX) {
- pr_err("S3 plugrec limit reached - aborting\n");
- return 1;
- }
- break;
- case S3ADDR_CRC:
- s3crc[ns3crc].addr = *ptr32;
- s3crc[ns3crc].len = *(ptr32 + 1);
- s3crc[ns3crc].dowrite = *(ptr32 + 2);
- pr_debug(" S3 crcrec, record=%d addr=0x%08x len=%d write=0x%08x\n",
- rcnt,
- s3crc[ns3crc].addr,
- s3crc[ns3crc].len,
- s3crc[ns3crc].dowrite);
- ns3crc++;
- if (ns3crc == S3CRC_MAX) {
- pr_err("S3 crcrec limit reached - aborting\n");
- return 1;
- }
- break;
- case S3ADDR_INFO:
- s3info[ns3info].len = *ptr16;
- s3info[ns3info].type = *(ptr16 + 1);
- pr_debug(" S3 inforec, record=%d len=0x%04x type=0x%04x\n",
- rcnt,
- s3info[ns3info].len,
- s3info[ns3info].type);
- if (((s3info[ns3info].len - 1) * sizeof(u16)) >
- sizeof(s3info[ns3info].info)) {
- pr_err("S3 inforec length too long - aborting\n");
- return 1;
- }
- tmpinfo = (u16 *)&(s3info[ns3info].info.version);
- pr_debug(" info=");
- for (i = 0; i < s3info[ns3info].len - 1; i++) {
- tmpinfo[i] = *(ptr16 + 2 + i);
- pr_debug("%04x ", tmpinfo[i]);
- }
- pr_debug("\n");
- ns3info++;
- if (ns3info == S3INFO_MAX) {
- pr_err("S3 inforec limit reached - aborting\n");
- return 1;
- }
- break;
- default: /* Data record */
- s3data[ns3data].addr = addr;
- s3data[ns3data].len = len;
- s3data[ns3data].data = (uint8_t *) record->data;
- ns3data++;
- if (ns3data == S3DATA_MAX) {
- pr_err("S3 datarec limit reached - aborting\n");
- return 1;
- }
- break;
- }
- record = ihex_next_binrec(record);
- }
- return 0;
- }
- /*----------------------------------------------------------------
- * writeimage
- *
- * Takes the chunks, builds p80211 messages and sends them down
- * to the driver for writing to the card.
- *
- * Arguments:
- * wlandev device
- * fchunk Array of image chunks
- * nfchunks Number of image chunks
- *
- * Returns:
- * 0 success
- * ~0 failure
- ----------------------------------------------------------------*/
- static int writeimage(wlandevice_t *wlandev, struct imgchunk *fchunk,
- unsigned int nfchunks)
- {
- int result = 0;
- struct p80211msg_p2req_ramdl_state *rstmsg;
- struct p80211msg_p2req_ramdl_write *rwrmsg;
- u32 resultcode;
- int i;
- int j;
- unsigned int nwrites;
- u32 curroff;
- u32 currlen;
- u32 currdaddr;
- rstmsg = kzalloc(sizeof(*rstmsg), GFP_KERNEL);
- rwrmsg = kzalloc(sizeof(*rwrmsg), GFP_KERNEL);
- if (!rstmsg || !rwrmsg) {
- kfree(rstmsg);
- kfree(rwrmsg);
- netdev_err(wlandev->netdev,
- "writeimage: no memory for firmware download, aborting download\n");
- return -ENOMEM;
- }
- /* Initialize the messages */
- strcpy(rstmsg->devname, wlandev->name);
- rstmsg->msgcode = DIDmsg_p2req_ramdl_state;
- rstmsg->msglen = sizeof(*rstmsg);
- rstmsg->enable.did = DIDmsg_p2req_ramdl_state_enable;
- rstmsg->exeaddr.did = DIDmsg_p2req_ramdl_state_exeaddr;
- rstmsg->resultcode.did = DIDmsg_p2req_ramdl_state_resultcode;
- rstmsg->enable.status = P80211ENUM_msgitem_status_data_ok;
- rstmsg->exeaddr.status = P80211ENUM_msgitem_status_data_ok;
- rstmsg->resultcode.status = P80211ENUM_msgitem_status_no_value;
- rstmsg->enable.len = sizeof(u32);
- rstmsg->exeaddr.len = sizeof(u32);
- rstmsg->resultcode.len = sizeof(u32);
- strcpy(rwrmsg->devname, wlandev->name);
- rwrmsg->msgcode = DIDmsg_p2req_ramdl_write;
- rwrmsg->msglen = sizeof(*rwrmsg);
- rwrmsg->addr.did = DIDmsg_p2req_ramdl_write_addr;
- rwrmsg->len.did = DIDmsg_p2req_ramdl_write_len;
- rwrmsg->data.did = DIDmsg_p2req_ramdl_write_data;
- rwrmsg->resultcode.did = DIDmsg_p2req_ramdl_write_resultcode;
- rwrmsg->addr.status = P80211ENUM_msgitem_status_data_ok;
- rwrmsg->len.status = P80211ENUM_msgitem_status_data_ok;
- rwrmsg->data.status = P80211ENUM_msgitem_status_data_ok;
- rwrmsg->resultcode.status = P80211ENUM_msgitem_status_no_value;
- rwrmsg->addr.len = sizeof(u32);
- rwrmsg->len.len = sizeof(u32);
- rwrmsg->data.len = WRITESIZE_MAX;
- rwrmsg->resultcode.len = sizeof(u32);
- /* Send xxx_state(enable) */
- pr_debug("Sending dl_state(enable) message.\n");
- rstmsg->enable.data = P80211ENUM_truth_true;
- rstmsg->exeaddr.data = startaddr;
- result = prism2mgmt_ramdl_state(wlandev, rstmsg);
- if (result) {
- netdev_err(wlandev->netdev,
- "writeimage state enable failed w/ result=%d, aborting download\n",
- result);
- goto free_result;
- }
- resultcode = rstmsg->resultcode.data;
- if (resultcode != P80211ENUM_resultcode_success) {
- netdev_err(wlandev->netdev,
- "writeimage()->xxxdl_state msg indicates failure, w/ resultcode=%d, aborting download.\n",
- resultcode);
- result = 1;
- goto free_result;
- }
- /* Now, loop through the data chunks and send WRITESIZE_MAX data */
- for (i = 0; i < nfchunks; i++) {
- nwrites = fchunk[i].len / WRITESIZE_MAX;
- nwrites += (fchunk[i].len % WRITESIZE_MAX) ? 1 : 0;
- curroff = 0;
- for (j = 0; j < nwrites; j++) {
- /* TODO Move this to a separate function */
- int lenleft = fchunk[i].len - (WRITESIZE_MAX * j);
- if (fchunk[i].len > WRITESIZE_MAX)
- currlen = WRITESIZE_MAX;
- else
- currlen = lenleft;
- curroff = j * WRITESIZE_MAX;
- currdaddr = fchunk[i].addr + curroff;
- /* Setup the message */
- rwrmsg->addr.data = currdaddr;
- rwrmsg->len.data = currlen;
- memcpy(rwrmsg->data.data,
- fchunk[i].data + curroff, currlen);
- /* Send flashdl_write(pda) */
- pr_debug
- ("Sending xxxdl_write message addr=%06x len=%d.\n",
- currdaddr, currlen);
- result = prism2mgmt_ramdl_write(wlandev, rwrmsg);
- /* Check the results */
- if (result) {
- netdev_err(wlandev->netdev,
- "writeimage chunk write failed w/ result=%d, aborting download\n",
- result);
- goto free_result;
- }
- resultcode = rstmsg->resultcode.data;
- if (resultcode != P80211ENUM_resultcode_success) {
- pr_err("writeimage()->xxxdl_write msg indicates failure, w/ resultcode=%d, aborting download.\n",
- resultcode);
- result = 1;
- goto free_result;
- }
- }
- }
- /* Send xxx_state(disable) */
- pr_debug("Sending dl_state(disable) message.\n");
- rstmsg->enable.data = P80211ENUM_truth_false;
- rstmsg->exeaddr.data = 0;
- result = prism2mgmt_ramdl_state(wlandev, rstmsg);
- if (result) {
- netdev_err(wlandev->netdev,
- "writeimage state disable failed w/ result=%d, aborting download\n",
- result);
- goto free_result;
- }
- resultcode = rstmsg->resultcode.data;
- if (resultcode != P80211ENUM_resultcode_success) {
- netdev_err(wlandev->netdev,
- "writeimage()->xxxdl_state msg indicates failure, w/ resultcode=%d, aborting download.\n",
- resultcode);
- result = 1;
- goto free_result;
- }
- free_result:
- kfree(rstmsg);
- kfree(rwrmsg);
- return result;
- }
- static int validate_identity(void)
- {
- int i;
- int result = 1;
- int trump = 0;
- pr_debug("NIC ID: %#x v%d.%d.%d\n",
- nicid.id, nicid.major, nicid.minor, nicid.variant);
- pr_debug("MFI ID: %#x v%d %d->%d\n",
- rfid.id, rfid.variant, rfid.bottom, rfid.top);
- pr_debug("CFI ID: %#x v%d %d->%d\n",
- macid.id, macid.variant, macid.bottom, macid.top);
- pr_debug("PRI ID: %#x v%d %d->%d\n",
- priid.id, priid.variant, priid.bottom, priid.top);
- for (i = 0; i < ns3info; i++) {
- switch (s3info[i].type) {
- case 1:
- pr_debug("Version: ID %#x %d.%d.%d\n",
- s3info[i].info.version.id,
- s3info[i].info.version.major,
- s3info[i].info.version.minor,
- s3info[i].info.version.variant);
- break;
- case 2:
- pr_debug("Compat: Role %#x Id %#x v%d %d->%d\n",
- s3info[i].info.compat.role,
- s3info[i].info.compat.id,
- s3info[i].info.compat.variant,
- s3info[i].info.compat.bottom,
- s3info[i].info.compat.top);
- /* MAC compat range */
- if ((s3info[i].info.compat.role == 1) &&
- (s3info[i].info.compat.id == 2)) {
- if (s3info[i].info.compat.variant !=
- macid.variant) {
- result = 2;
- }
- }
- /* PRI compat range */
- if ((s3info[i].info.compat.role == 1) &&
- (s3info[i].info.compat.id == 3)) {
- if ((s3info[i].info.compat.bottom > priid.top)
- || (s3info[i].info.compat.top <
- priid.bottom)) {
- result = 3;
- }
- }
- /* SEC compat range */
- if ((s3info[i].info.compat.role == 1) &&
- (s3info[i].info.compat.id == 4)) {
- /* FIXME: isn't something missing here? */
- }
- break;
- case 3:
- pr_debug("Seq: %#x\n", s3info[i].info.buildseq);
- break;
- case 4:
- pr_debug("Platform: ID %#x %d.%d.%d\n",
- s3info[i].info.version.id,
- s3info[i].info.version.major,
- s3info[i].info.version.minor,
- s3info[i].info.version.variant);
- if (nicid.id != s3info[i].info.version.id)
- continue;
- if (nicid.major != s3info[i].info.version.major)
- continue;
- if (nicid.minor != s3info[i].info.version.minor)
- continue;
- if ((nicid.variant != s3info[i].info.version.variant) &&
- (nicid.id != 0x8008))
- continue;
- trump = 1;
- break;
- case 0x8001:
- pr_debug("name inforec len %d\n", s3info[i].len);
- break;
- default:
- pr_debug("Unknown inforec type %d\n", s3info[i].type);
- }
- }
- /* walk through */
- if (trump && (result != 2))
- result = 0;
- return result;
- }
|