diff options
Diffstat (limited to 'kernel/drivers/staging/wlan-ng/prism2fw.c')
| -rw-r--r-- | kernel/drivers/staging/wlan-ng/prism2fw.c | 1217 |
1 files changed, 1217 insertions, 0 deletions
diff --git a/kernel/drivers/staging/wlan-ng/prism2fw.c b/kernel/drivers/staging/wlan-ng/prism2fw.c new file mode 100644 index 000000000..9408644cc --- /dev/null +++ b/kernel/drivers/staging/wlan-ng/prism2fw.c @@ -0,0 +1,1217 @@ +/* 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) +{ + int result = 0; + u16 *pda16 = (u16 *) pda->buf; + int curroff; /* in 'words' */ + + pda->nrec = 0; + curroff = 0; + while (curroff < (HFA384x_PDA_LEN_MAX / 2) && + 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)) { + pr_err("no end record found or invalid lengths in PDR data, exiting. %x %d\n", + curroff, pda->nrec); + return 1; + } + if (le16_to_cpu(pda16[curroff + 1]) == HFA384x_PDR_END_OF_PDA) { + pda->rec[pda->nrec] = (hfa384x_pdrec_t *) &(pda16[curroff]); + (pda->nrec)++; + } + return result; +} + +/*---------------------------------------------------------------- +* 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; +} |