From d89505998e007f88e08e84381dcc720a8990507d Mon Sep 17 00:00:00 2001 From: Karl Relton Date: Wed, 19 Aug 2009 08:06:39 +0100 Subject: [PATCH] Staging: wlan-ng: Convert firmware loading to load binary ihex format Convert prism2_usb firmware loading to load firmware in pre-compiled binary 'ihex' format rather than ascii 'srec' format. This moves the srec processing and sorting of records out of kernel space into a pre-compiler. The driver now just works with the binary image, but still does the 'pda plugging' of that image at runtime, as required by the prism hardware. Some Notes: - The firmware is now expected to be in the same 'ihex' (.fw) format used by other drivers. - The now driver assumes the data records are already sorted into ascending address order. - Plug and crc records are still recognised by special address locations as in original srec processing. - The srec S7 start address record is assumed to have been converted into a data record with another special address location (0xff400000), with the original start address being stored as a 4 byte data word (little endian). Signed-off-by: Karl Relton Signed-off-by: Greg Kroah-Hartman --- drivers/staging/wlan-ng/prism2fw.c | 465 ++++++++--------------------- 1 file changed, 131 insertions(+), 334 deletions(-) diff --git a/drivers/staging/wlan-ng/prism2fw.c b/drivers/staging/wlan-ng/prism2fw.c index c62b4759b3da..7d76a7f92a33 100644 --- a/drivers/staging/wlan-ng/prism2fw.c +++ b/drivers/staging/wlan-ng/prism2fw.c @@ -47,83 +47,27 @@ /*================================================================*/ /* System Includes */ -#include -#include +#include /*================================================================*/ /* Local Constants */ -#define PRISM2_USB_FWFILE "prism2_ru.hex" +#define PRISM2_USB_FWFILE "prism2_ru.fw" #define S3DATA_MAX 5000 #define S3PLUG_MAX 200 #define S3CRC_MAX 200 #define S3INFO_MAX 50 -#define SREC_LINE_MAX 264 -#define S3LEN_TXTOFFSET 2 -#define S3LEN_TXTLEN 2 -#define S3ADDR_TXTOFFSET 4 -#define S3ADDR_TXTLEN 8 -#define S3DATA_TXTOFFSET 12 -/*S3DATA_TXTLEN variable, depends on len field */ -/*S3CKSUM_TXTOFFSET variable, depends on len field */ -#define S3CKSUM_TXTLEN 2 -#define SERNUM_LEN_MAX 12 - -#define S3PLUG_ITEMCODE_TXTOFFSET (S3DATA_TXTOFFSET) -#define S3PLUG_ITEMCODE_TXTLEN 8 -#define S3PLUG_ADDR_TXTOFFSET (S3DATA_TXTOFFSET+8) -#define S3PLUG_ADDR_TXTLEN 8 -#define S3PLUG_LEN_TXTOFFSET (S3DATA_TXTOFFSET+16) -#define S3PLUG_LEN_TXTLEN 8 - -#define S3CRC_ADDR_TXTOFFSET (S3DATA_TXTOFFSET) -#define S3CRC_ADDR_TXTLEN 8 -#define S3CRC_LEN_TXTOFFSET (S3DATA_TXTOFFSET+8) -#define S3CRC_LEN_TXTLEN 8 -#define S3CRC_DOWRITE_TXTOFFSET (S3DATA_TXTOFFSET+16) -#define S3CRC_DOWRITE_TXTLEN 8 - -#define S3INFO_LEN_TXTOFFSET (S3DATA_TXTOFFSET) -#define S3INFO_LEN_TXTLEN 4 -#define S3INFO_TYPE_TXTOFFSET (S3DATA_TXTOFFSET+4) -#define S3INFO_TYPE_TXTLEN 4 -#define S3INFO_DATA_TXTOFFSET (S3DATA_TXTOFFSET+8) -/* S3INFO_DATA_TXTLEN variable, depends on INFO_LEN field */ #define S3ADDR_PLUG (0xff000000UL) #define S3ADDR_CRC (0xff100000UL) #define S3ADDR_INFO (0xff200000UL) - -#define PDAFILE_LINE_MAX 1024 +#define S3ADDR_START (0xff400000UL) #define CHUNKS_MAX 100 #define WRITESIZE_MAX 4096 -/*================================================================*/ -/* Local Macros */ - -#define bswap_16(x) \ - (__extension__ \ - ({ register unsigned short int __v, __x = (x); \ - __asm__ ("rorw $8, %w0" \ - : "=r" (__v) \ - : "0" (__x) \ - : "cc"); \ - __v; })) - -#define bswap_32(x) \ - (__extension__ \ - ({ register unsigned int __v, __x = (x); \ - __asm__ ("rorw $8, %w0;" \ - "rorl $16, %0;" \ - "rorw $8, %w0" \ - : "=r" (__v) \ - : "0" (__x) \ - : "cc"); \ - __v; })) - /*================================================================*/ /* Local Types */ @@ -214,12 +158,11 @@ hfa384x_caplevel_t priid; /*================================================================*/ /* Local Function Declarations */ -int prism2_fwapply(char *rfptr, int rfsize, wlandevice_t * wlandev); -int read_srecfile(char *rfptr, int rfsize); +int prism2_fwapply(const struct ihex_binrec *rfptr, wlandevice_t *wlandev); +int read_fwfile(const struct ihex_binrec *rfptr); int mkimage(imgchunk_t *clist, unsigned int *ccnt); int read_cardpda(pda_t *pda, wlandevice_t *wlandev); int mkpdrlist(pda_t *pda); -int s3datarec_compare(const void *p1, const void *p2); int plugimage(imgchunk_t *fchunk, unsigned int nfchunks, s3plugrec_t *s3plug, unsigned int ns3plug, pda_t * pda); int crcimage(imgchunk_t *fchunk, unsigned int nfchunks, @@ -253,7 +196,7 @@ int prism2_fwtry(struct usb_device *udev, wlandevice_t *wlandev) printk(KERN_INFO "prism2_usb: Checking for firmware %s\n", PRISM2_USB_FWFILE); - if (request_firmware(&fw_entry, PRISM2_USB_FWFILE, &udev->dev) != 0) { + if (request_ihex_firmware(&fw_entry, PRISM2_USB_FWFILE, &udev->dev) != 0) { printk(KERN_INFO "prism2_usb: Firmware not available, but not essential\n"); printk(KERN_INFO @@ -263,7 +206,7 @@ int prism2_fwtry(struct usb_device *udev, wlandevice_t *wlandev) printk(KERN_INFO "prism2_usb: %s will be processed, size %d\n", PRISM2_USB_FWFILE, fw_entry->size); - prism2_fwapply((char *)fw_entry->data, fw_entry->size, wlandev); + prism2_fwapply((const struct ihex_binrec *)fw_entry->data, wlandev); release_firmware(fw_entry); return 0; @@ -276,14 +219,13 @@ int prism2_fwtry(struct usb_device *udev, wlandevice_t *wlandev) * * Arguments: * rfptr firmware image in kernel memory -* rfsize firmware size in kernel memory * wlandev device * * Returns: * 0 - success * ~0 - failure ----------------------------------------------------------------*/ -int prism2_fwapply(char *rfptr, int rfsize, wlandevice_t *wlandev) +int prism2_fwapply(const struct ihex_binrec *rfptr, wlandevice_t *wlandev) { signed int result = 0; p80211msg_dot11req_mibget_t getmsg; @@ -356,13 +298,11 @@ int prism2_fwapply(char *rfptr, int rfsize, wlandevice_t *wlandev) priid.top = *data++; /* Read the S3 file */ - result = read_srecfile(rfptr, rfsize); + result = read_fwfile(rfptr); if (result) { printk(KERN_ERR "Failed to read the data exiting.\n"); return (1); } - /* Sort the S3 data records */ - sort(s3data, ns3data, sizeof(s3datarec_t), s3datarec_compare, NULL); result = validate_identity(); @@ -516,10 +456,6 @@ void free_chunks(imgchunk_t *fchunk, unsigned int *nfchunks) ----------------------------------------------------------------*/ void free_srecs(void) { - int i; - for (i = 0; i < ns3data; i++) { - kfree(s3data[i].data); - } ns3data = 0; memset(s3data, 0, sizeof(s3data)); ns3plug = 0; @@ -598,10 +534,6 @@ int mkimage(imgchunk_t *clist, unsigned int *ccnt) return (1); } memset(clist[i].data, 0, clist[i].len); - } - - /* Display chunks */ - for (i = 0; i < *ccnt; i++) { pr_debug("chunk[%d]: addr=0x%06x len=%d\n", i, clist[i].addr, clist[i].len); } @@ -856,44 +788,20 @@ int read_cardpda(pda_t *pda, wlandevice_t *wlandev) } /*---------------------------------------------------------------- -* copy_line +* read_fwfile * -* Copies a line of text, up to \n, \0, or SREC_LINE_MAX, or limit of -* From array +* 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. * -* Arguments: -* from From addr -* to To addr -* limit Addr of last character in From array that can be copied -* -* Returns: -* Num characters copied -----------------------------------------------------------------*/ -int copyline(char *from, char *to, char *limit) -{ - int c = 0; - - while ((c < SREC_LINE_MAX - 1) && (from + c <= limit) && - (from[c] != '\n') && (from[c] != '\0')) { - to[c] = from[c]; - c++; - } - - to[c] = '\0'; - return (c < SREC_LINE_MAX - 1) ? c + 1 : c; -} - -/*---------------------------------------------------------------- -* read_srecfile +* Note that data records are expected to be sorted into +* ascending address order in the fw file. * -* Reads the given srecord file and loads the records into the -* s3xxx arrays. This function can be called repeatedly (once for -* each of a set of files), if necessary. This function performs -* no validation of the data except for the grossest of S-record -* line format checks. Don't forget that these will be DOS files... -* CR/LF at the end of each line. +* 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 identiable. * -* Here's the SREC format we're dealing with: +* 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 @@ -902,8 +810,9 @@ int copyline(char *from, char *to, char *limit) * cc - checksum * * The S7 record's (there should be only one) address value gets -* saved in startaddr. It's the start execution address used -* for RAM downloads. +* 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: @@ -927,237 +836,124 @@ int copyline(char *from, char *to, char *limit) * 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: -* rfptr firmware image (s-record structure) in kernel memory -* rfsize firmware size in kernel memory +* record firmware image (ihex record structure) in kernel memory * * Returns: * 0 - success * ~0 - failure (probably an errno) ----------------------------------------------------------------*/ -int read_srecfile(char *rfptr, int rfsize) +int read_fwfile(const struct ihex_binrec *record) { - int result = 0; - char buf[SREC_LINE_MAX]; - char tmpbuf[30]; - s3datarec_t tmprec; - int i, c; - int line = 0; - u16 *tmpinfo; - char *endptr = rfptr + rfsize; - - pr_debug("Reading S-record file ...\n"); - - while ((c = copyline(rfptr, buf, endptr)) >= 12) { - rfptr = rfptr + c; - line++; - if (buf[0] != 'S') { - printk(KERN_ERR "%d warning: No initial \'S\'\n", line); - return 1; - } - if (buf[1] == '7') { /* S7 record, start address */ - buf[12] = '\0'; - startaddr = simple_strtoul(buf + 4, NULL, 16); - pr_debug(" S7 start addr, line=%d " - " addr=0x%08x\n", line, startaddr); - continue; - } else if (buf[1] == '3') { - /* Ok, it's an S3, parse and put it in the right array */ - /* Record Length field (we only want datalen) */ - memcpy(tmpbuf, buf + S3LEN_TXTOFFSET, S3LEN_TXTLEN); - tmpbuf[S3LEN_TXTLEN] = '\0'; - tmprec.len = simple_strtoul(tmpbuf, NULL, 16) - 4 - 1; /* 4=addr, 1=cksum */ - /* Address field */ - memcpy(tmpbuf, buf + S3ADDR_TXTOFFSET, S3ADDR_TXTLEN); - tmpbuf[S3ADDR_TXTLEN] = '\0'; - tmprec.addr = simple_strtoul(tmpbuf, NULL, 16); - /* Checksum field */ - tmprec.checksum = - simple_strtoul(buf + strlen(buf) - 2, NULL, 16); - - switch (tmprec.addr) { - case S3ADDR_PLUG: - memcpy(tmpbuf, buf + S3PLUG_ITEMCODE_TXTOFFSET, - S3PLUG_ITEMCODE_TXTLEN); - tmpbuf[S3PLUG_ITEMCODE_TXTLEN] = '\0'; - s3plug[ns3plug].itemcode = - simple_strtoul(tmpbuf, NULL, 16); - s3plug[ns3plug].itemcode = - bswap_32(s3plug[ns3plug].itemcode); - - memcpy(tmpbuf, buf + S3PLUG_ADDR_TXTOFFSET, - S3PLUG_ADDR_TXTLEN); - tmpbuf[S3PLUG_ADDR_TXTLEN] = '\0'; - s3plug[ns3plug].addr = - simple_strtoul(tmpbuf, NULL, 16); - s3plug[ns3plug].addr = - bswap_32(s3plug[ns3plug].addr); - - memcpy(tmpbuf, buf + S3PLUG_LEN_TXTOFFSET, - S3PLUG_LEN_TXTLEN); - tmpbuf[S3PLUG_LEN_TXTLEN] = '\0'; - s3plug[ns3plug].len = - simple_strtoul(tmpbuf, NULL, 16); - s3plug[ns3plug].len = - bswap_32(s3plug[ns3plug].len); - - pr_debug(" S3 plugrec, line=%d " - "itemcode=0x%04x addr=0x%08x len=%d\n", - line, - s3plug[ns3plug].itemcode, - s3plug[ns3plug].addr, - s3plug[ns3plug].len); - - ns3plug++; - if (ns3plug == S3PLUG_MAX) { - printk(KERN_ERR - "S3 plugrec limit reached - aborting\n"); - return 1; - } - break; - case S3ADDR_CRC: - memcpy(tmpbuf, buf + S3CRC_ADDR_TXTOFFSET, - S3CRC_ADDR_TXTLEN); - tmpbuf[S3CRC_ADDR_TXTLEN] = '\0'; - s3crc[ns3crc].addr = - simple_strtoul(tmpbuf, NULL, 16); - s3crc[ns3crc].addr = - bswap_32(s3crc[ns3crc].addr); - - memcpy(tmpbuf, buf + S3CRC_LEN_TXTOFFSET, - S3CRC_LEN_TXTLEN); - tmpbuf[S3CRC_LEN_TXTLEN] = '\0'; - s3crc[ns3crc].len = - simple_strtoul(tmpbuf, NULL, 16); - s3crc[ns3crc].len = bswap_32(s3crc[ns3crc].len); - - memcpy(tmpbuf, buf + S3CRC_DOWRITE_TXTOFFSET, - S3CRC_DOWRITE_TXTLEN); - tmpbuf[S3CRC_DOWRITE_TXTLEN] = '\0'; - s3crc[ns3crc].dowrite = - simple_strtoul(tmpbuf, NULL, 16); - s3crc[ns3crc].dowrite = - bswap_32(s3crc[ns3crc].dowrite); - - pr_debug(" S3 crcrec, line=%d " - "addr=0x%08x len=%d write=0x%08x\n", - line, - s3crc[ns3crc].addr, - s3crc[ns3crc].len, - s3crc[ns3crc].dowrite); - ns3crc++; - if (ns3crc == S3CRC_MAX) { - printk(KERN_ERR - "S3 crcrec limit reached - aborting\n"); - return 1; - } - break; - case S3ADDR_INFO: - memcpy(tmpbuf, buf + S3INFO_LEN_TXTOFFSET, - S3INFO_LEN_TXTLEN); - tmpbuf[S3INFO_LEN_TXTLEN] = '\0'; - s3info[ns3info].len = - simple_strtoul(tmpbuf, NULL, 16); - s3info[ns3info].len = - bswap_16(s3info[ns3info].len); - - memcpy(tmpbuf, buf + S3INFO_TYPE_TXTOFFSET, - S3INFO_TYPE_TXTLEN); - tmpbuf[S3INFO_TYPE_TXTLEN] = '\0'; - s3info[ns3info].type = - simple_strtoul(tmpbuf, NULL, 16); - s3info[ns3info].type = - bswap_16(s3info[ns3info].type); - - pr_debug(" S3 inforec, line=%d " - "len=0x%04x type=0x%04x\n", - line, - s3info[ns3info].len, - s3info[ns3info].type); - if (((s3info[ns3info].len - 1) * sizeof(u16)) > - sizeof(s3info[ns3info].info)) { - printk(KERN_ERR - " S3 inforec length too long - aborting\n"); - return 1; - } + int i; + int rcnt = 0; + u16 *tmpinfo; + u16 *ptr16; + u32 *ptr32, len, addr; - tmpinfo = - (u16 *) & (s3info[ns3info].info.version); - for (i = 0; i < s3info[ns3info].len - 1; i++) { - memcpy(tmpbuf, - buf + S3INFO_DATA_TXTOFFSET + - (i * 4), 4); - tmpbuf[4] = '\0'; - tmpinfo[i] = - simple_strtoul(tmpbuf, NULL, 16); - tmpinfo[i] = bswap_16(tmpinfo[i]); - } - pr_debug(" info="); - for (i = 0; i < s3info[ns3info].len - 1; i++) { - pr_debug("%04x ", tmpinfo[i]); - } - pr_debug("\n"); + pr_debug("Reading fw file ...\n"); - ns3info++; - if (ns3info == S3INFO_MAX) { - printk(KERN_ERR - "S3 inforec limit reached - aborting\n"); - return 1; - } - break; - default: /* Data record */ - s3data[ns3data].addr = tmprec.addr; - s3data[ns3data].len = tmprec.len; - s3data[ns3data].checksum = tmprec.checksum; - s3data[ns3data].data = - kmalloc(tmprec.len, GFP_KERNEL); - for (i = 0; i < tmprec.len; i++) { - memcpy(tmpbuf, - buf + S3DATA_TXTOFFSET + (i * 2), - 2); - tmpbuf[2] = '\0'; - s3data[ns3data].data[i] = - simple_strtoul(tmpbuf, NULL, 16); - } - ns3data++; - if (ns3data == S3DATA_MAX) { - printk(KERN_ERR - "S3 datarec limit reached - aborting\n"); - return 1; - } - break; + 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 ) { + printk(KERN_ERR "S3 plugrec limit reached - aborting\n"); + return 1; } - } else { - printk(KERN_WARNING - "%d warning: Unknown S-record detected.\n", - line); + 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 ) { + printk(KERN_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) ) { + printk(KERN_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 ) { + printk(KERN_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 ) { + printk(KERN_ERR "S3 datarec limit reached - aborting\n"); + return 1; + } + break; } + record = ihex_next_binrec(record); } - return result; -} - -/*---------------------------------------------------------------- -* s3datarec_compare -* -* Comparison function for sort(). -* -* Arguments: -* p1 ptr to the first item -* p2 ptr to the second item -* Returns: -* 0 items are equal -* <0 p1 < p2 -* >0 p1 > p2 -----------------------------------------------------------------*/ -int s3datarec_compare(const void *p1, const void *p2) -{ - const s3datarec_t *s1 = p1; - const s3datarec_t *s2 = p2; - if (s1->addr == s2->addr) - return 0; - if (s1->addr < s2->addr) - return -1; - return 1; + return 0; } /*---------------------------------------------------------------- @@ -1316,6 +1112,7 @@ 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); @@ -1389,8 +1186,7 @@ int validate_identity(void) (nicid.id != 0x8008)) continue; - if (result != 2) - result = 0; + trump = 1; break; case 0x8001: pr_debug("name inforec len %d\n", s3info[i].len); @@ -1402,5 +1198,6 @@ int validate_identity(void) } // walk through + if (trump && (result != 2)) result = 0; return result; } -- 2.30.2