/*
* Copyright (c) 2010 Broadcom Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/etherdevice.h>
#include <bcmdefs.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <stdarg.h>
#include <bcmutils.h>
#include <hndsoc.h>
#include <sbchipc.h>
#include <bcmdevs.h>
#include <pcicfg.h>
#include <siutils.h>
#include <bcmsrom.h>
#include <bcmsrom_tbl.h>
#ifdef BCMSDIO
#include <bcmsdh.h>
#include <sdio.h>
#endif
#include <bcmnvram.h>
#include <bcmotp.h>
#if defined(BCMSDIO)
#include <sbsdio.h>
#include <sbhnddma.h>
#include <sbsdpcmdev.h>
#endif
#include <linux/if_ether.h>
#define BS_ERROR(args)
#define SROM_OFFSET(sih) ((sih->ccrev > 31) ? \
(((sih->cccaps & CC_CAP_SROM) == 0) ? NULL : \
((u8 *)curmap + PCI_16KB0_CCREGS_OFFSET + CC_SROM_OTP)) : \
((u8 *)curmap + PCI_BAR0_SPROM_OFFSET))
#if defined(BCMDBG)
#define WRITE_ENABLE_DELAY 500 /* 500 ms after write enable/disable toggle */
#define WRITE_WORD_DELAY 20 /* 20 ms between each word write */
#endif
typedef struct varbuf {
char *base; /* pointer to buffer base */
char *buf; /* pointer to current position */
unsigned int size; /* current (residual) size in bytes */
} varbuf_t;
extern char *_vars;
extern uint _varsz;
#define SROM_CIS_SINGLE 1
static int initvars_srom_si(si_t *sih, void *curmap, char **vars, uint *count);
static void _initvars_srom_pci(u8 sromrev, u16 *srom, uint off, varbuf_t *b);
static int initvars_srom_pci(si_t *sih, void *curmap, char **vars, uint *count);
static int initvars_flash_si(si_t *sih, char **vars, uint *count);
#ifdef BCMSDIO
static int initvars_cis_sdio(char **vars, uint *count);
static int sprom_cmd_sdio(u8 cmd);
static int sprom_read_sdio(u16 addr, u16 *data);
#endif /* BCMSDIO */
static int sprom_read_pci(si_t *sih, u16 *sprom,
uint wordoff, u16 *buf, uint nwords, bool check_crc);
#if defined(BCMNVRAMR)
static int otp_read_pci(si_t *sih, u16 *buf, uint bufsz);
#endif
static u16 srom_cc_cmd(si_t *sih, void *ccregs, u32 cmd,
uint wordoff, u16 data);
static int initvars_table(char *start, char *end,
char **vars, uint *count);
static int initvars_flash(si_t *sih, char **vp,
uint len);
/* Initialization of varbuf structure */
static void varbuf_init(varbuf_t *b, char *buf, uint size)
{
b->size = size;
b->base = b->buf = buf;
}
/* append a null terminated var=value string */
static int varbuf_append(varbuf_t *b, const char *fmt, ...)
{
va_list ap;
int r;
size_t len;
char *s;
if (b->size < 2)
return 0;
va_start(ap, fmt);
r = vsnprintf(b->buf, b->size, fmt, ap);
va_end(ap);
/* C99 snprintf behavior returns r >= size on overflow,
* others return -1 on overflow.
* All return -1 on format error.
* We need to leave room for 2 null terminations, one for the current var
* string, and one for final null of the var table. So check that the
* strlen written, r, leaves room for 2 chars.
*/
if ((r == -1) || (r > (int)(b->size - 2))) {
b->size = 0;
return 0;
}
/* Remove any earlier occurrence of the same variable */
s = strchr(b->buf, '=');
if (s != NULL) {
len = (size_t) (s - b->buf);
for (s = b->base; s < b->buf;) {
if ((memcmp(s, b->buf, len) == 0) && s[len] == '=') {
len = strlen(s) + 1;
memmove(s, (s + len),
((b->buf + r + 1) - (s + len)));
b->buf -= len;
b->size += (unsigned int)len;
break;
}
while (*s++)
;
}
}
/* skip over this string's null termination */
r++;
b->size -= r;
b->buf += r;
return r;
}
/*
* Initialize local vars from the right source for this platform.
* Return 0 on success, nonzero on error.
*/
int srom_var_init(si_t *sih, uint bustype, void *curmap,
char **vars, uint *count)
{
uint len;
len = 0;
ASSERT(bustype == bustype);
if (vars == NULL || count == NULL)
return 0;
*vars = NULL;
*count = 0;
switch (bustype) {
case SI_BUS:
case JTAG_BUS:
return initvars_srom_si(sih, curmap, vars, count);
case PCI_BUS:
ASSERT(curmap != NULL);
if (curmap == NULL)
return -1;
return initvars_srom_pci(sih, curmap, vars, count);
#ifdef BCMSDIO
case SDIO_BUS:
return initvars_cis_sdio(vars, count);
#endif /* BCMSDIO */
default:
ASSERT(0);
}
return -1;
}
/* support only 16-bit word read from srom */
int
srom_read(si_t *sih, uint bustype, void *curmap,
uint byteoff, uint nbytes, u16 *buf, bool check_crc)
{
uint off, nw;
#ifdef BCMSDIO
uint i;
#endif /* BCMSDIO */
ASSERT(bustype == bustype);
/* check input - 16-bit access only */
if (byteoff & 1 || nbytes & 1 || (byteoff + nbytes) > SROM_MAX)
return 1;
off = byteoff / 2;
nw = nbytes / 2;
if (bustype == PCI_BUS) {
if (!curmap)
return 1;
if (si_is_sprom_available(sih)) {
u16 *srom;
srom = (u16 *) SROM_OFFSET(sih);
if (srom == NULL)
return 1;
if (sprom_read_pci
(sih, srom, off, buf, nw, check_crc))
return 1;
}
#if defined(BCMNVRAMR)
else {
if (otp_read_pci(sih, buf, SROM_MAX))
return 1;
}
#endif
#ifdef BCMSDIO
} else if (bustype == SDIO_BUS) {
off = byteoff / 2;
nw = nbytes / 2;
for (i = 0; i < nw; i++) {
if (sprom_read_sdio
((u16) (off + i), (u16 *) (buf + i)))
return 1;
}
#endif /* BCMSDIO */
} else if (bustype == SI_BUS) {
return 1;
} else {
return 1;
}
return 0;
}
static const char vstr_manf[] = "manf=%s";
static const char vstr_productname[] = "productname=%s";
static const char vstr_manfid[] = "manfid=0x%x";
static const char vstr_prodid[] = "prodid=0x%x";
#ifdef BCMSDIO
static const char vstr_sdmaxspeed[] = "sdmaxspeed=%d";
static const char vstr_sdmaxblk[][13] = {
"sdmaxblk0=%d", "sdmaxblk1=%d", "sdmaxblk2=%d"};
#endif
static const char vstr_regwindowsz[] = "regwindowsz=%d";
static const char vstr_sromrev[] = "sromrev=%d";
static const char vstr_chiprev[] = "chiprev=%d";
static const char vstr_subvendid[] = "subvendid=0x%x";
static const char vstr_subdevid[] = "subdevid=0x%x";
static const char vstr_boardrev[] = "boardrev=0x%x";
static const char vstr_aa2g[] = "aa2g=0x%x";
static const char vstr_aa5g[] = "aa5g=0x%x";
static const char vstr_ag[] = "ag%d=0x%x";
static const char vstr_cc[] = "cc=%d";
static const char vstr_opo[] = "opo=%d";
static const char vstr_pa0b[][9] = {
"pa0b0=%d", "pa0b1=%d", "pa0b2=%d"};
static const char vstr_pa0itssit[] = "pa0itssit=%d";
static const char vstr_pa0maxpwr[] = "pa0maxpwr=%d";
static const char vstr_pa1b[][9] = {
"pa1b0=%d", "pa1b1=%d", "pa1b2=%d"};
static const char vstr_pa1lob[][11] = {
"pa1lob0=%d", "pa1lob1=%d", "pa1lob2=%d"};
static const char vstr_pa1hib[][11] = {
"pa1hib0=%d", "pa1hib1=%d", "pa1hib2=%d"};
static const char vstr_pa1itssit[] = "pa1itssit=%d";
static const char vstr_pa1maxpwr[] = "pa1maxpwr=%d";
static const char vstr_pa1lomaxpwr[] = "pa1lomaxpwr=%d";
static const char vstr_pa1himaxpwr[] = "pa1himaxpwr=%d";
static const char vstr_oem[] =
"oem=%02x%02x%02x%02x%02x%02x%02x%02x";
static const char vstr_boardflags[] = "boardflags=0x%x";
static const char vstr_boardflags2[] = "boardflags2=0x%x";
static const char vstr_ledbh[] = "ledbh%d=0x%x";
static const char vstr_noccode[] = "ccode=0x0";
static const char vstr_ccode[] = "ccode=%c%c";
static const char vstr_cctl[] = "cctl=0x%x";
static const char vstr_cckpo[] = "cckpo=0x%x";
static const char vstr_ofdmpo[] = "ofdmpo=0x%x";
static const char vstr_rdlid[] = "rdlid=0x%x";
static const char vstr_rdlrndis[] = "rdlrndis=%d";
static const char vstr_rdlrwu[] = "rdlrwu=%d";
static const char vstr_usbfs[] = "usbfs=%d";
static const char vstr_wpsgpio[] = "wpsgpio=%d";
static const char vstr_wpsled[] = "wpsled=%d";
static const char vstr_rdlsn[] = "rdlsn=%d";
static const char vstr_rssismf2g[] = "rssismf2g=%d";
static const char vstr_rssismc2g[] = "rssismc2g=%d";
static const char vstr_rssisav2g[] = "rssisav2g=%d";
static const char vstr_bxa2g[] = "bxa2g=%d";
static const char vstr_rssismf5g[] = "rssismf5g=%d";
static const char vstr_rssismc5g[] = "rssismc5g=%d";
static const char vstr_rssisav5g[] = "rssisav5g=%d";
static const char vstr_bxa5g[] = "bxa5g=%d";
static const char vstr_tri2g[] = "tri2g=%d";
static const char vstr_tri5gl[] = "tri5gl=%d";
static const char vstr_tri5g[] = "tri5g=%d";
static const char vstr_tri5gh[] = "tri5gh=%d";
static const char vstr_rxpo2g[] = "rxpo2g=%d";
static const char vstr_rxpo5g[] = "rxpo5g=%d";
static const char vstr_boardtype[] = "boardtype=0x%x";
static const char vstr_leddc[] = "leddc=0x%04x";
static const char vstr_vendid[] = "vendid=0x%x";
static const char vstr_devid[] = "devid=0x%x";
static const char vstr_xtalfreq[] = "xtalfreq=%d";
static const char vstr_txchain[] = "txchain=0x%x";
static const char vstr_rxchain[] = "rxchain=0x%x";
static const char vstr_antswitch[] = "antswitch=0x%x";
static const char vstr_regrev[] = "regrev=0x%x";
static const char vstr_antswctl2g[] = "antswctl2g=0x%x";
static const char vstr_triso2g[] = "triso2g=0x%x";
static const char vstr_pdetrange2g[] = "pdetrange2g=0x%x";
static const char vstr_extpagain2g[] = "extpagain2g=0x%x";
static const char vstr_tssipos2g[] = "tssipos2g=0x%x";
static const char vstr_antswctl5g[] = "antswctl5g=0x%x";
static const char vstr_triso5g[] = "triso5g=0x%x";
static const char vstr_pdetrange5g[] = "pdetrange5g=0x%x";
static const char vstr_extpagain5g[] = "extpagain5g=0x%x";
static const char vstr_tssipos5g[] = "tssipos5g=0x%x";
static const char vstr_maxp2ga0[] = "maxp2ga0=0x%x";
static const char vstr_itt2ga0[] = "itt2ga0=0x%x";
static const char vstr_pa[] = "pa%dgw%da%d=0x%x";
static const char vstr_pahl[] = "pa%dg%cw%da%d=0x%x";
static const char vstr_maxp5ga0[] = "maxp5ga0=0x%x";
static const char vstr_itt5ga0[] = "itt5ga0=0x%x";
static const char vstr_maxp5gha0[] = "maxp5gha0=0x%x";
static const char vstr_maxp5gla0[] = "maxp5gla0=0x%x";
static const char vstr_maxp2ga1[] = "maxp2ga1=0x%x";
static const char vstr_itt2ga1[] = "itt2ga1=0x%x";
static const char vstr_maxp5ga1[] = "maxp5ga1=0x%x";
static const char vstr_itt5ga1[] = "itt5ga1=0x%x";
static const char vstr_maxp5gha1[] = "maxp5gha1=0x%x";
static const char vstr_maxp5gla1[] = "maxp5gla1=0x%x";
static const char vstr_cck2gpo[] = "cck2gpo=0x%x";
static const char vstr_ofdm2gpo[] = "ofdm2gpo=0x%x";
static const char vstr_ofdm5gpo[] = "ofdm5gpo=0x%x";
static const char vstr_ofdm5glpo[] = "ofdm5glpo=0x%x";
static const char vstr_ofdm5ghpo[] = "ofdm5ghpo=0x%x";
static const char vstr_cddpo[] = "cddpo=0x%x";
static const char vstr_stbcpo[] = "stbcpo=0x%x";
static const char vstr_bw40po[] = "bw40po=0x%x";
static const char vstr_bwduppo[] = "bwduppo=0x%x";
static const char vstr_mcspo[] = "mcs%dgpo%d=0x%x";
static const char vstr_mcspohl[] = "mcs%dg%cpo%d=0x%x";
static const char vstr_custom[] = "customvar%d=0x%x";
static const char vstr_cckdigfilttype[] = "cckdigfilttype=%d";
static const char vstr_boardnum[] = "boardnum=%d";
static const char vstr_macaddr[] = "macaddr=%s";
static const char vstr_usbepnum[] = "usbepnum=0x%x";
static const char vstr_end[] = "END\0";
u8 patch_pair;
/* For dongle HW, accept partial calibration parameters */
#define BCMDONGLECASE(n)
int srom_parsecis(u8 *pcis[], uint ciscnt, char **vars,
uint *count)
{
char eabuf[32];
char *base;
varbuf_t b;
u8 *cis, tup, tlen, sromrev = 1;
int i, j;
bool ag_init = false;
u32 w32;
uint funcid;
uint cisnum;
s32 boardnum;
int err;
bool standard_cis;
ASSERT(vars != NULL);
ASSERT(count != NULL);
boardnum = -1;
base = kmalloc(MAXSZ_NVRAM_VARS, GFP_ATOMIC);
ASSERT(base != NULL);
if (!base)
return -2;
varbuf_init(&b, base, MAXSZ_NVRAM_VARS);
memset(base, 0, MAXSZ_NVRAM_VARS);
eabuf[0] = '\0';
for (cisnum = 0; cisnum < ciscnt; cisnum++) {
cis = *pcis++;
i = 0;
funcid = 0;
standard_cis = true;
do {
if (standard_cis) {
tup = cis[i++];
if (tup == CISTPL_NULL || tup == CISTPL_END)
tlen = 0;
else
tlen = cis[i++];
} else {
if (cis[i] == CISTPL_NULL
|| cis[i] == CISTPL_END) {
tlen = 0;
tup = cis[i];
} else {
tlen = cis[i];
tup = CISTPL_BRCM_HNBU;
}
++i;
}
if ((i + tlen) >= CIS_SIZE)
break;
switch (tup) {
case CISTPL_VERS_1:
/* assume the strings are good if the version field checks out */
if (((cis[i + 1] << 8) + cis[i]) >= 0x0008) {
varbuf_append(&b, vstr_manf,
&cis[i + 2]);
varbuf_append(&b, vstr_productname,
&cis[i + 3 +
strlen((char *)
&cis[i +
2])]);
break;
}
case CISTPL_MANFID:
varbuf_append(&b, vstr_manfid,
(cis[i + 1] << 8) + cis[i]);
varbuf_append(&b, vstr_prodid,
(cis[i + 3] << 8) + cis[i + 2]);
break;
case CISTPL_FUNCID:
funcid = cis[i];
break;
case CISTPL_FUNCE:
switch (funcid) {
case CISTPL_FID_SDIO:
#ifdef BCMSDIO
if (cis[i] == 0) {
u8 spd = cis[i + 3];
static int base[] = {
-1, 10, 12, 13, 15, 20,
25, 30,
35, 40, 45, 50, 55, 60,
70, 80
};
static int mult[] = {
10, 100, 1000, 10000,
-1, -1, -1, -1
};
ASSERT((mult[spd & 0x7] != -1)
&&
(base
[(spd >> 3) & 0x0f]));
varbuf_append(&b,
vstr_sdmaxblk[0],
(cis[i + 2] << 8)
+ cis[i + 1]);
varbuf_append(&b,
vstr_sdmaxspeed,
(mult[spd & 0x7] *
base[(spd >> 3) &
0x0f]));
} else if (cis[i] == 1) {
varbuf_append(&b,
vstr_sdmaxblk
[cisnum],
(cis[i + 13] << 8)
| cis[i + 12]);
}
#endif /* BCMSDIO */
funcid = 0;
break;
default:
/* set macaddr if HNBU_MACADDR not seen yet */
if (eabuf[0] == '\0' &&
cis[i] == LAN_NID &&
!is_zero_ether_addr(&cis[i + 2]) &&
!is_multicast_ether_addr(&cis[i + 2])) {
ASSERT(cis[i + 1] ==
ETH_ALEN);
snprintf(eabuf, sizeof(eabuf),
"%pM", &cis[i + 2]);
/* set boardnum if HNBU_BOARDNUM not seen yet */
if (boardnum == -1)
boardnum =
(cis[i + 6] << 8) +
cis[i + 7];
}
break;
}
break;
case CISTPL_CFTABLE:
varbuf_append(&b, vstr_regwindowsz,
(cis[i + 7] << 8) | cis[i + 6]);
break;
case CISTPL_BRCM_HNBU:
switch (cis[i]) {
case HNBU_SROMREV:
sromrev = cis[i + 1];
varbuf_append(&b, vstr_sromrev,
sromrev);
break;
case HNBU_XTALFREQ:
varbuf_append(&b, vstr_xtalfreq,
(cis[i + 4] << 24) |
(cis[i + 3] << 16) |
(cis[i + 2] << 8) |
cis[i + 1]);
break;
case HNBU_CHIPID:
varbuf_append(&b, vstr_vendid,
(cis[i + 2] << 8) +
cis[i + 1]);
varbuf_append(&b, vstr_devid,
(cis[i + 4] << 8) +
cis[i + 3]);
if (tlen >= 7) {
varbuf_append(&b, vstr_chiprev,
(cis[i + 6] << 8)
+ cis[i + 5]);
}
if (tlen >= 9) {
varbuf_append(&b,
vstr_subvendid,
(cis[i + 8] << 8)
+ cis[i + 7]);
}
if (tlen >= 11) {
varbuf_append(&b, vstr_subdevid,
(cis[i + 10] << 8)
+ cis[i + 9]);
/* subdevid doubles for boardtype */
varbuf_append(&b,
vstr_boardtype,
(cis[i + 10] << 8)
+ cis[i + 9]);
}
break;
case HNBU_BOARDNUM:
boardnum =
(cis[i + 2] << 8) + cis[i + 1];
break;
case HNBU_PATCH:
{
char vstr_paddr[16];
char vstr_pdata[16];
/* retrieve the patch pairs
* from tlen/6; where 6 is
* sizeof(patch addr(2)) +
* sizeof(patch data(4)).
*/
patch_pair = tlen / 6;
for (j = 0; j < patch_pair; j++) {
snprintf(vstr_paddr,
sizeof
(vstr_paddr),
"pa%d=0x%%x",
j);
snprintf(vstr_pdata,
sizeof
(vstr_pdata),
"pd%d=0x%%x",
j);
varbuf_append(&b,
vstr_paddr,
(cis
[i +
(j *
6) +
2] << 8)
| cis[i +
(j *
6)
+
1]);
varbuf_append(&b,
vstr_pdata,
(cis
[i +
(j *
6) +
6] <<
24) |
(cis
[i +
(j *
6) +
5] <<
16) |
(cis
[i +
(j *
6) +
4] << 8)
| cis[i +
(j *
6)
+
3]);
}
}
break;
case HNBU_BOARDREV:
if (tlen == 2)
varbuf_append(&b, vstr_boardrev,
cis[i + 1]);
else
varbuf_append(&b, vstr_boardrev,
(cis[i + 2] << 8)
+ cis[i + 1]);
break;
case HNBU_BOARDFLAGS:
w32 = (cis[i + 2] << 8) + cis[i + 1];
if (tlen >= 5)
w32 |=
((cis[i + 4] << 24) +
(cis[i + 3] << 16));
varbuf_append(&b, vstr_boardflags, w32);
if (tlen >= 7) {
w32 =
(cis[i + 6] << 8) + cis[i +
5];
if (tlen >= 9)
w32 |=
((cis[i + 8] << 24)
+
(cis[i + 7] <<
16));
varbuf_append(&b,
vstr_boardflags2,
w32);
}
break;
case HNBU_USBFS:
varbuf_append(&b, vstr_usbfs,
cis[i + 1]);
break;
case HNBU_BOARDTYPE:
varbuf_append(&b, vstr_boardtype,
(cis[i + 2] << 8) +
cis[i + 1]);
break;
case HNBU_HNBUCIS:
/*
* what follows is a nonstandard HNBU CIS
* that lacks CISTPL_BRCM_HNBU tags
*
* skip 0xff (end of standard CIS)
* after this tuple
*/
tlen++;
standard_cis = false;
break;
case HNBU_USBEPNUM:
varbuf_append(&b, vstr_usbepnum,
(cis[i + 2] << 8) | cis[i
+
1]);
break;
case HNBU_AA:
varbuf_append(&b, vstr_aa2g,
cis[i + 1]);
if (tlen >= 3)
varbuf_append(&b, vstr_aa5g,
cis[i + 2]);
break;
case HNBU_AG:
varbuf_append(&b, vstr_ag, 0,
cis[i + 1]);
if (tlen >= 3)
varbuf_append(&b, vstr_ag, 1,
cis[i + 2]);
if (tlen >= 4)
varbuf_append(&b, vstr_ag, 2,
cis[i + 3]);
if (tlen >= 5)
varbuf_append(&b, vstr_ag, 3,
cis[i + 4]);
ag_init = true;
break;
case HNBU_ANT5G:
varbuf_append(&b, vstr_aa5g,
cis[i + 1]);
varbuf_append(&b, vstr_ag, 1,
cis[i + 2]);
break;
case HNBU_CC:
ASSERT(sromrev == 1);
varbuf_append(&b, vstr_cc, cis[i + 1]);
break;
case HNBU_PAPARMS:
switch (tlen) {
case 2:
ASSERT(sromrev == 1);
varbuf_append(&b,
vstr_pa0maxpwr,
cis[i + 1]);
break;
case 10:
ASSERT(sromrev >= 2);
varbuf_append(&b, vstr_opo,
cis[i + 9]);
/* FALLTHROUGH */
case 9:
varbuf_append(&b,
vstr_pa0maxpwr,
cis[i + 8]);
/* FALLTHROUGH */
BCMDONGLECASE(8)
varbuf_append(&b,
vstr_pa0itssit,
cis[i + 7]);
/* FALLTHROUGH */
BCMDONGLECASE(7)
for (j = 0; j < 3; j++) {
varbuf_append(&b,
vstr_pa0b
[j],
(cis
[i +
(j *
2) +
2] << 8)
+ cis[i +
(j *
2)
+
1]);
}
break;
default:
ASSERT((tlen == 2)
|| (tlen == 9)
|| (tlen == 10));
break;
}
break;
case HNBU_PAPARMS5G:
ASSERT((sromrev == 2)
|| (sromrev == 3));
switch (tlen) {
case 23:
varbuf_append(&b,
vstr_pa1himaxpwr,
cis[i + 22]);
varbuf_append(&b,
vstr_pa1lomaxpwr,
cis[i + 21]);
varbuf_append(&b,
vstr_pa1maxpwr,
cis[i + 20]);
/* FALLTHROUGH */
case 20:
varbuf_append(&b,
vstr_pa1itssit,
cis[i + 19]);
/* FALLTHROUGH */
case 19:
for (j = 0; j < 3; j++) {
varbuf_append(&b,
vstr_pa1b
[j],
(cis
[i +
(j *
2) +
2] << 8)
+ cis[i +
(j *
2)
+
1]);
}
for (j = 3; j < 6; j++) {
varbuf_append(&b,
vstr_pa1lob
[j - 3],
(cis
[i +
(j *
2) +
2] << 8)
+ cis[i +
(j *
2)
+
1]);
}
for (j = 6; j < 9; j++) {
varbuf_append(&b,
vstr_pa1hib
[j - 6],
(cis
[i +
(j *
2) +
2] << 8)
+ cis[i +
(j *
2)
+
1]);
}
break;
default:
ASSERT((tlen == 19) ||
(tlen == 20)
|| (tlen == 23));
break;
}
break;
case HNBU_OEM:
ASSERT(sromrev == 1);
varbuf_append(&b, vstr_oem,
cis[i + 1], cis[i + 2],
cis[i + 3], cis[i + 4],
cis[i + 5], cis[i + 6],
cis[i + 7], cis[i + 8]);
break;
case HNBU_LEDS:
for (j = 1; j <= 4; j++) {
if (cis[i + j] != 0xff) {
varbuf_append(&b,
vstr_ledbh,
j - 1,
cis[i +
j]);
}
}
break;
case HNBU_CCODE:
ASSERT(sromrev > 1);
if ((cis[i + 1] == 0)
|| (cis[i + 2] == 0))
varbuf_append(&b, vstr_noccode);
else
varbuf_append(&b, vstr_ccode,
cis[i + 1],
cis[i + 2]);
varbuf_append(&b, vstr_cctl,
cis[i + 3]);
break;
case HNBU_CCKPO:
ASSERT(sromrev > 2);
varbuf_append(&b, vstr_cckpo,
(cis[i + 2] << 8) | cis[i
+
1]);
break;
case HNBU_OFDMPO:
ASSERT(sromrev > 2);
varbuf_append(&b, vstr_ofdmpo,
(cis[i + 4] << 24) |
(cis[i + 3] << 16) |
(cis[i + 2] << 8) |
cis[i + 1]);
break;
case HNBU_WPS:
varbuf_append(&b, vstr_wpsgpio,
cis[i + 1]);
if (tlen >= 3)
varbuf_append(&b, vstr_wpsled,
cis[i + 2]);
break;
case HNBU_RSSISMBXA2G:
ASSERT(sromrev == 3);
varbuf_append(&b, vstr_rssismf2g,
cis[i + 1] & 0xf);
varbuf_append(&b, vstr_rssismc2g,
(cis[i + 1] >> 4) & 0xf);
varbuf_append(&b, vstr_rssisav2g,
cis[i + 2] & 0x7);
varbuf_append(&b, vstr_bxa2g,
(cis[i + 2] >> 3) & 0x3);
break;
case HNBU_RSSISMBXA5G:
ASSERT(sromrev == 3);
varbuf_append(&b, vstr_rssismf5g,
cis[i + 1] & 0xf);
varbuf_append(&b, vstr_rssismc5g,
(cis[i + 1] >> 4) & 0xf);
varbuf_append(&b, vstr_rssisav5g,
cis[i + 2] & 0x7);
varbuf_append(&b, vstr_bxa5g,
(cis[i + 2] >> 3) & 0x3);
break;
case HNBU_TRI2G:
ASSERT(sromrev == 3);
varbuf_append(&b, vstr_tri2g,
cis[i + 1]);
break;
case HNBU_TRI5G:
ASSERT(sromrev == 3);
varbuf_append(&b, vstr_tri5gl,
cis[i + 1]);
varbuf_append(&b, vstr_tri5g,
cis[i + 2]);
varbuf_append(&b, vstr_tri5gh,
cis[i + 3]);
break;
case HNBU_RXPO2G:
ASSERT(sromrev == 3);
varbuf_append(&b, vstr_rxpo2g,
cis[i + 1]);
break;
case HNBU_RXPO5G:
ASSERT(sromrev == 3);
varbuf_append(&b, vstr_rxpo5g,
cis[i + 1]);
break;
case HNBU_MACADDR:
if (!is_zero_ether_addr(&cis[i + 1]) &&
!is_multicast_ether_addr(&cis[i + 1])) {
snprintf(eabuf, sizeof(eabuf),
"%pM", &cis[i + 1]);
/* set boardnum if HNBU_BOARDNUM not seen yet */
if (boardnum == -1)
boardnum =
(cis[i + 5] << 8) +
cis[i + 6];
}
break;
case HNBU_LEDDC:
/* CIS leddc only has 16bits, convert it to 32bits */
w32 = ((cis[i + 2] << 24) | /* oncount */
(cis[i + 1] << 8)); /* offcount */
varbuf_append(&b, vstr_leddc, w32);
break;
case HNBU_CHAINSWITCH:
varbuf_append(&b, vstr_txchain,
cis[i + 1]);
varbuf_append(&b, vstr_rxchain,
cis[i + 2]);
varbuf_append(&b, vstr_antswitch,
(cis[i + 4] << 8) +
cis[i + 3]);
break;
case HNBU_REGREV:
varbuf_append(&b, vstr_regrev,
cis[i + 1]);
break;
case HNBU_FEM:{
u16 fem =
(cis[i + 2] << 8) + cis[i +
1];
varbuf_append(&b,
vstr_antswctl2g,
(fem &
SROM8_FEM_ANTSWLUT_MASK)
>>
SROM8_FEM_ANTSWLUT_SHIFT);
varbuf_append(&b, vstr_triso2g,
(fem &
SROM8_FEM_TR_ISO_MASK)
>>
SROM8_FEM_TR_ISO_SHIFT);
varbuf_append(&b,
vstr_pdetrange2g,
(fem &
SROM8_FEM_PDET_RANGE_MASK)
>>
SROM8_FEM_PDET_RANGE_SHIFT);
varbuf_append(&b,
vstr_extpagain2g,
(fem &
SROM8_FEM_EXTPA_GAIN_MASK)
>>
SROM8_FEM_EXTPA_GAIN_SHIFT);
varbuf_append(&b,
vstr_tssipos2g,
(fem &
SROM8_FEM_TSSIPOS_MASK)
>>
SROM8_FEM_TSSIPOS_SHIFT);
if (tlen < 5)
break;
fem =
(cis[i + 4] << 8) + cis[i +
3];
varbuf_append(&b,
vstr_antswctl5g,
(fem &
SROM8_FEM_ANTSWLUT_MASK)
>>
SROM8_FEM_ANTSWLUT_SHIFT);
varbuf_append(&b, vstr_triso5g,
(fem &
SROM8_FEM_TR_ISO_MASK)
>>
SROM8_FEM_TR_ISO_SHIFT);
varbuf_append(&b,
vstr_pdetrange5g,
(fem &
SROM8_FEM_PDET_RANGE_MASK)
>>
SROM8_FEM_PDET_RANGE_SHIFT);
varbuf_append(&b,
vstr_extpagain5g,
(fem &
SROM8_FEM_EXTPA_GAIN_MASK)
>>
SROM8_FEM_EXTPA_GAIN_SHIFT);
varbuf_append(&b,
vstr_tssipos5g,
(fem &
SROM8_FEM_TSSIPOS_MASK)
>>
SROM8_FEM_TSSIPOS_SHIFT);
break;
}
case HNBU_PAPARMS_C0:
varbuf_append(&b, vstr_maxp2ga0,
cis[i + 1]);
varbuf_append(&b, vstr_itt2ga0,
cis[i + 2]);
varbuf_append(&b, vstr_pa, 2, 0, 0,
(cis[i + 4] << 8) +
cis[i + 3]);
varbuf_append(&b, vstr_pa, 2, 1, 0,
(cis[i + 6] << 8) +
cis[i + 5]);
varbuf_append(&b, vstr_pa, 2, 2, 0,
(cis[i + 8] << 8) +
cis[i + 7]);
if (tlen < 31)
break;
varbuf_append(&b, vstr_maxp5ga0,
cis[i + 9]);
varbuf_append(&b, vstr_itt5ga0,
cis[i + 10]);
varbuf_append(&b, vstr_maxp5gha0,
cis[i + 11]);
varbuf_append(&b, vstr_maxp5gla0,
cis[i + 12]);
varbuf_append(&b, vstr_pa, 5, 0, 0,
(cis[i + 14] << 8) +
cis[i + 13]);
varbuf_append(&b, vstr_pa, 5, 1, 0,
(cis[i + 16] << 8) +
cis[i + 15]);
varbuf_append(&b, vstr_pa, 5, 2, 0,
(cis[i + 18] << 8) +
cis[i + 17]);
varbuf_append(&b, vstr_pahl, 5, 'l', 0,
0,
(cis[i + 20] << 8) +
cis[i + 19]);
varbuf_append(&b, vstr_pahl, 5, 'l', 1,
0,
(cis[i + 22] << 8) +
cis[i + 21]);
varbuf_append(&b, vstr_pahl, 5, 'l', 2,
0,
(cis[i + 24] << 8) +
cis[i + 23]);
varbuf_append(&b, vstr_pahl, 5, 'h', 0,
0,
(cis[i + 26] << 8) +
cis[i + 25]);
varbuf_append(&b, vstr_pahl, 5, 'h', 1,
0,
(cis[i + 28] << 8) +
cis[i + 27]);
varbuf_append(&b, vstr_pahl, 5, 'h', 2,
0,
(cis[i + 30] << 8) +
cis[i + 29]);
break;
case HNBU_PAPARMS_C1:
varbuf_append(&b, vstr_maxp2ga1,
cis[i + 1]);
varbuf_append(&b, vstr_itt2ga1,
cis[i + 2]);
varbuf_append(&b, vstr_pa, 2, 0, 1,
(cis[i + 4] << 8) +
cis[i + 3]);
varbuf_append(&b, vstr_pa, 2, 1, 1,
(cis[i + 6] << 8) +
cis[i + 5]);
varbuf_append(&b, vstr_pa, 2, 2, 1,
(cis[i + 8] << 8) +
cis[i + 7]);
if (tlen < 31)
break;
varbuf_append(&b, vstr_maxp5ga1,
cis[i + 9]);
varbuf_append(&b, vstr_itt5ga1,
cis[i + 10]);
varbuf_append(&b, vstr_maxp5gha1,
cis[i + 11]);
varbuf_append(&b, vstr_maxp5gla1,
cis[i + 12]);
varbuf_append(&b, vstr_pa, 5, 0, 1,
(cis[i + 14] << 8) +
cis[i + 13]);
varbuf_append(&b, vstr_pa, 5, 1, 1,
(cis[i + 16] << 8) +
cis[i + 15]);
varbuf_append(&b, vstr_pa, 5, 2, 1,
(cis[i + 18] << 8) +
cis[i + 17]);
varbuf_append(&b, vstr_pahl, 5, 'l', 0,
1,
(cis[i + 20] << 8) +
cis[i + 19]);
varbuf_append(&b, vstr_pahl, 5, 'l', 1,
1,
(cis[i + 22] << 8) +
cis[i + 21]);
varbuf_append(&b, vstr_pahl, 5, 'l', 2,
1,
(cis[i + 24] << 8) +
cis[i + 23]);
varbuf_append(&b, vstr_pahl, 5, 'h', 0,
1,
(cis[i + 26] << 8) +
cis[i + 25]);
varbuf_append(&b, vstr_pahl, 5, 'h', 1,
1,
(cis[i + 28] << 8) +
cis[i + 27]);
varbuf_append(&b, vstr_pahl, 5, 'h', 2,
1,
(cis[i + 30] << 8) +
cis[i + 29]);
break;
case HNBU_PO_CCKOFDM:
varbuf_append(&b, vstr_cck2gpo,
(cis[i + 2] << 8) +
cis[i + 1]);
varbuf_append(&b, vstr_ofdm2gpo,
(cis[i + 6] << 24) +
(cis[i + 5] << 16) +
(cis[i + 4] << 8) +
cis[i + 3]);
if (tlen < 19)
break;
varbuf_append(&b, vstr_ofdm5gpo,
(cis[i + 10] << 24) +
(cis[i + 9] << 16) +
(cis[i + 8] << 8) +
cis[i + 7]);
varbuf_append(&b, vstr_ofdm5glpo,
(cis[i + 14] << 24) +
(cis[i + 13] << 16) +
(cis[i + 12] << 8) +
cis[i + 11]);
varbuf_append(&b, vstr_ofdm5ghpo,
(cis[i + 18] << 24) +
(cis[i + 17] << 16) +
(cis[i + 16] << 8) +
cis[i + 15]);
break;
case HNBU_PO_MCS2G:
for (j = 0; j <= (tlen / 2); j++) {
varbuf_append(&b, vstr_mcspo, 2,
j,
(cis
[i + 2 +
2 * j] << 8) +
cis[i + 1 +
2 * j]);
}
break;
case HNBU_PO_MCS5GM:
for (j = 0; j <= (tlen / 2); j++) {
varbuf_append(&b, vstr_mcspo, 5,
j,
(cis
[i + 2 +
2 * j] << 8) +
cis[i + 1 +
2 * j]);
}
break;
case HNBU_PO_MCS5GLH:
for (j = 0; j <= (tlen / 4); j++) {
varbuf_append(&b, vstr_mcspohl,
5, 'l', j,
(cis
[i + 2 +
2 * j] << 8) +
cis[i + 1 +
2 * j]);
}
for (j = 0; j <= (tlen / 4); j++) {
varbuf_append(&b, vstr_mcspohl,
5, 'h', j,
(cis
[i +
((tlen / 2) +
2) +
2 * j] << 8) +
cis[i +
((tlen / 2) +
1) + 2 * j]);
}
break;
case HNBU_PO_CDD:
varbuf_append(&b, vstr_cddpo,
(cis[i + 2] << 8) +
cis[i + 1]);
break;
case HNBU_PO_STBC:
varbuf_append(&b, vstr_stbcpo,
(cis[i + 2] << 8) +
cis[i + 1]);
break;
case HNBU_PO_40M:
varbuf_append(&b, vstr_bw40po,
(cis[i + 2] << 8) +
cis[i + 1]);
break;
case HNBU_PO_40MDUP:
varbuf_append(&b, vstr_bwduppo,
(cis[i + 2] << 8) +
cis[i + 1]);
break;
case HNBU_OFDMPO5G:
varbuf_append(&b, vstr_ofdm5gpo,
(cis[i + 4] << 24) +
(cis[i + 3] << 16) +
(cis[i + 2] << 8) +
cis[i + 1]);
varbuf_append(&b, vstr_ofdm5glpo,
(cis[i + 8] << 24) +
(cis[i + 7] << 16) +
(cis[i + 6] << 8) +
cis[i + 5]);
varbuf_append(&b, vstr_ofdm5ghpo,
(cis[i + 12] << 24) +
(cis[i + 11] << 16) +
(cis[i + 10] << 8) +
cis[i + 9]);
break;
case HNBU_CUSTOM1:
varbuf_append(&b, vstr_custom, 1,
((cis[i + 4] << 24) +
(cis[i + 3] << 16) +
(cis[i + 2] << 8) +
cis[i + 1]));
break;
#if defined(BCMSDIO)
case HNBU_SROM3SWRGN:
if (tlen >= 73) {
u16 srom[35];
u8 srev = cis[i + 1 + 70];
ASSERT(srev == 3);
/* make tuple value 16-bit aligned and parse it */
memcpy(srom, &cis[i + 1],
sizeof(srom));
_initvars_srom_pci(srev, srom,
SROM3_SWRGN_OFF,
&b);
/* 2.4G antenna gain is included in SROM */
ag_init = true;
/* Ethernet MAC address is included in SROM */
eabuf[0] = 0;
boardnum = -1;
}
/* create extra variables */
if (tlen >= 75)
varbuf_append(&b, vstr_vendid,
(cis[i + 1 + 73]
<< 8) + cis[i +
1 +
72]);
if (tlen >= 77)
varbuf_append(&b, vstr_devid,
(cis[i + 1 + 75]
<< 8) + cis[i +
1 +
74]);
if (tlen >= 79)
varbuf_append(&b, vstr_xtalfreq,
(cis[i + 1 + 77]
<< 8) + cis[i +
1 +
76]);
break;
#endif /* defined(BCMSDIO) */
case HNBU_CCKFILTTYPE:
varbuf_append(&b, vstr_cckdigfilttype,
(cis[i + 1]));
break;
}
break;
}
i += tlen;
} while (tup != CISTPL_END);
}
if (boardnum != -1) {
varbuf_append(&b, vstr_boardnum, boardnum);
}
if (eabuf[0]) {
varbuf_append(&b, vstr_macaddr, eabuf);
}
/* if there is no antenna gain field, set default */
if (getvar(NULL, "ag0") == NULL && ag_init == false) {
varbuf_append(&b, vstr_ag, 0, 0xff);
}
/* final nullbyte terminator */
ASSERT(b.size >= 1);
*b.buf++ = '\0';
ASSERT(b.buf - base <= MAXSZ_NVRAM_VARS);
err = initvars_table(base, b.buf, vars, count);
kfree(base);
return err;
}
/* In chips with chipcommon rev 32 and later, the srom is in chipcommon,
* not in the bus cores.
*/
static u16
srom_cc_cmd(si_t *sih, void *ccregs, u32 cmd,
uint wordoff, u16 data)
{
chipcregs_t *cc = (chipcregs_t *) ccregs;
uint wait_cnt = 1000;
if ((cmd == SRC_OP_READ) || (cmd == SRC_OP_WRITE)) {
W_REG(&cc->sromaddress, wordoff * 2);
if (cmd == SRC_OP_WRITE)
W_REG(&cc->sromdata, data);
}
W_REG(&cc->sromcontrol, SRC_START | cmd);
while (wait_cnt--) {
if ((R_REG(&cc->sromcontrol) & SRC_BUSY) == 0)
break;
}
if (!wait_cnt) {
BS_ERROR(("%s: Command 0x%x timed out\n", __func__, cmd));
return 0xffff;
}
if (cmd == SRC_OP_READ)
return (u16) R_REG(&cc->sromdata);
else
return 0xffff;
}
static inline void ltoh16_buf(u16 *buf, unsigned int size)
{
for (size /= 2; size; size--)
*(buf + size) = le16_to_cpu(*(buf + size));
}
static inline void htol16_buf(u16 *buf, unsigned int size)
{
for (size /= 2; size; size--)
*(buf + size) = cpu_to_le16(*(buf + size));
}
/*
* Read in and validate sprom.
* Return 0 on success, nonzero on error.
*/
static int
sprom_read_pci(si_t *sih, u16 *sprom, uint wordoff,
u16 *buf, uint nwords, bool check_crc)
{
int err = 0;
uint i;
void *ccregs = NULL;
/* read the sprom */
for (i = 0; i < nwords; i++) {
if (sih->ccrev > 31 && ISSIM_ENAB(sih)) {
/* use indirect since direct is too slow on QT */
if ((sih->cccaps & CC_CAP_SROM) == 0)
return 1;
ccregs = (void *)((u8 *) sprom - CC_SROM_OTP);
buf[i] =
srom_cc_cmd(sih, ccregs, SRC_OP_READ,
wordoff + i, 0);
} else {
if (ISSIM_ENAB(sih))
buf[i] = R_REG(&sprom[wordoff + i]);
buf[i] = R_REG(&sprom[wordoff + i]);
}
}
/* bypass crc checking for simulation to allow srom hack */
if (ISSIM_ENAB(sih))
return err;
if (check_crc) {
if (buf[0] == 0xffff) {
/* The hardware thinks that an srom that starts with 0xffff
* is blank, regardless of the rest of the content, so declare
* it bad.
*/
BS_ERROR(("%s: buf[0] = 0x%x, returning bad-crc\n",
__func__, buf[0]));
return 1;
}
/* fixup the endianness so crc8 will pass */
htol16_buf(buf, nwords * 2);
if (hndcrc8((u8 *) buf, nwords * 2, CRC8_INIT_VALUE) !=
CRC8_GOOD_VALUE) {
/* DBG only pci always read srom4 first, then srom8/9 */
/* BS_ERROR(("%s: bad crc\n", __func__)); */
err = 1;
}
/* now correct the endianness of the byte array */
ltoh16_buf(buf, nwords * 2);
}
return err;
}
#if defined(BCMNVRAMR)
static int otp_read_pci(si_t *sih, u16 *buf, uint bufsz)
{
u8 *otp;
uint sz = OTP_SZ_MAX / 2; /* size in words */
int err = 0;
ASSERT(bufsz <= OTP_SZ_MAX);
otp = kzalloc(OTP_SZ_MAX, GFP_ATOMIC);
if (otp == NULL) {
return BCME_ERROR;
}
err = otp_read_region(sih, OTP_HW_RGN, (u16 *) otp, &sz);
memcpy(buf, otp, bufsz);
kfree(otp);
/* Check CRC */
if (buf[0] == 0xffff) {
/* The hardware thinks that an srom that starts with 0xffff
* is blank, regardless of the rest of the content, so declare
* it bad.
*/
BS_ERROR(("%s: buf[0] = 0x%x, returning bad-crc\n", __func__,
buf[0]));
return 1;
}
/* fixup the endianness so crc8 will pass */
htol16_buf(buf, bufsz);
if (hndcrc8((u8 *) buf, SROM4_WORDS * 2, CRC8_INIT_VALUE) !=
CRC8_GOOD_VALUE) {
BS_ERROR(("%s: bad crc\n", __func__));
err = 1;
}
/* now correct the endianness of the byte array */
ltoh16_buf(buf, bufsz);
return err;
}
#endif /* defined(BCMNVRAMR) */
/*
* Create variable table from memory.
* Return 0 on success, nonzero on error.
*/
static int initvars_table(char *start, char *end,
char **vars, uint *count)
{
int c = (int)(end - start);
/* do it only when there is more than just the null string */
if (c > 1) {
char *vp = kmalloc(c, GFP_ATOMIC);
ASSERT(vp != NULL);
if (!vp)
return BCME_NOMEM;
memcpy(vp, start, c);
*vars = vp;
*count = c;
} else {
*vars = NULL;
*count = 0;
}
return 0;
}
/*
* Find variables with <devpath> from flash. 'base' points to the beginning
* of the table upon enter and to the end of the table upon exit when success.
* Return 0 on success, nonzero on error.
*/
static int initvars_flash(si_t *sih, char **base, uint len)
{
char *vp = *base;
char *flash;
int err;
char *s;
uint l, dl, copy_len;
char devpath[SI_DEVPATH_BUFSZ];
/* allocate memory and read in flash */
flash = kmalloc(NVRAM_SPACE, GFP_ATOMIC);
if (!flash)
return BCME_NOMEM;
err = nvram_getall(flash, NVRAM_SPACE);
if (err)
goto exit;
si_devpath(sih, devpath, sizeof(devpath));
/* grab vars with the <devpath> prefix in name */
dl = strlen(devpath);
for (s = flash; s && *s; s += l + 1) {
l = strlen(s);
/* skip non-matching variable */
if (strncmp(s, devpath, dl))
continue;
/* is there enough room to copy? */
copy_len = l - dl + 1;
if (len < copy_len) {
err = BCME_BUFTOOSHORT;
goto exit;
}
/* no prefix, just the name=value */
strncpy(vp, &s[dl], copy_len);
vp += copy_len;
len -= copy_len;
}
/* add null string as terminator */
if (len < 1) {
err = BCME_BUFTOOSHORT;
goto exit;
}
*vp++ = '\0';
*base = vp;
exit: kfree(flash);
return err;
}
/*
* Initialize nonvolatile variable table from flash.
* Return 0 on success, nonzero on error.
*/
static int initvars_flash_si(si_t *sih, char **vars, uint *count)
{
char *vp, *base;
int err;
ASSERT(vars != NULL);
ASSERT(count != NULL);
base = vp = kmalloc(MAXSZ_NVRAM_VARS, GFP_ATOMIC);
ASSERT(vp != NULL);
if (!vp)
return BCME_NOMEM;
err = initvars_flash(sih, &vp, MAXSZ_NVRAM_VARS);
if (err == 0)
err = initvars_table(base, vp, vars, count);
kfree(base);
return err;
}
/* Parse SROM and create name=value pairs. 'srom' points to
* the SROM word array. 'off' specifies the offset of the
* first word 'srom' points to, which should be either 0 or
* SROM3_SWRG_OFF (full SROM or software region).
*/
static uint mask_shift(u16 mask)
{
uint i;
for (i = 0; i < (sizeof(mask) << 3); i++) {
if (mask & (1 << i))
return i;
}
ASSERT(mask);
return 0;
}
static uint mask_width(u16 mask)
{
int i;
for (i = (sizeof(mask) << 3) - 1; i >= 0; i--) {
if (mask & (1 << i))
return (uint) (i - mask_shift(mask) + 1);
}
ASSERT(mask);
return 0;
}
#if defined(BCMDBG)
static bool mask_valid(u16 mask)
{
uint shift = mask_shift(mask);
uint width = mask_width(mask);
return mask == ((~0 << shift) & ~(~0 << (shift + width)));
}
#endif /* BCMDBG */
static void _initvars_srom_pci(u8 sromrev, u16 *srom, uint off, varbuf_t *b)
{
u16 w;
u32 val;
const sromvar_t *srv;
uint width;
uint flags;
u32 sr = (1 << sromrev);
varbuf_append(b, "sromrev=%d", sromrev);
for (srv = pci_sromvars; srv->name != NULL; srv++) {
const char *name;
if ((srv->revmask & sr) == 0)
continue;
if (srv->off < off)
continue;
flags = srv->flags;
name = srv->name;
/* This entry is for mfgc only. Don't generate param for it, */
if (flags & SRFL_NOVAR)
continue;
if (flags & SRFL_ETHADDR) {
u8 ea[ETH_ALEN];
ea[0] = (srom[srv->off - off] >> 8) & 0xff;
ea[1] = srom[srv->off - off] & 0xff;
ea[2] = (srom[srv->off + 1 - off] >> 8) & 0xff;
ea[3] = srom[srv->off + 1 - off] & 0xff;
ea[4] = (srom[srv->off + 2 - off] >> 8) & 0xff;
ea[5] = srom[srv->off + 2 - off] & 0xff;
varbuf_append(b, "%s=%pM", name, ea);
} else {
ASSERT(mask_valid(srv->mask));
ASSERT(mask_width(srv->mask));
w = srom[srv->off - off];
val = (w & srv->mask) >> mask_shift(srv->mask);
width = mask_width(srv->mask);
while (srv->flags & SRFL_MORE) {
srv++;
ASSERT(srv->name != NULL);
if (srv->off == 0 || srv->off < off)
continue;
ASSERT(mask_valid(srv->mask));
ASSERT(mask_width(srv->mask));
w = srom[srv->off - off];
val +=
((w & srv->mask) >> mask_shift(srv->
mask)) <<
width;
width += mask_width(srv->mask);
}
if ((flags & SRFL_NOFFS)
&& ((int)val == (1 << width) - 1))
continue;
if (flags & SRFL_CCODE) {
if (val == 0)
varbuf_append(b, "ccode=");
else
varbuf_append(b, "ccode=%c%c",
(val >> 8), (val & 0xff));
}
/* LED Powersave duty cycle has to be scaled:
*(oncount >> 24) (offcount >> 8)
*/
else if (flags & SRFL_LEDDC) {
u32 w32 = (((val >> 8) & 0xff) << 24) | /* oncount */
(((val & 0xff)) << 8); /* offcount */
varbuf_append(b, "leddc=%d", w32);
} else if (flags & SRFL_PRHEX)
varbuf_append(b, "%s=0x%x", name, val);
else if ((flags & SRFL_PRSIGN)
&& (val & (1 << (width - 1))))
varbuf_append(b, "%s=%d", name,
(int)(val | (~0 << width)));
else
varbuf_append(b, "%s=%u", name, val);
}
}
if (sromrev >= 4) {
/* Do per-path variables */
uint p, pb, psz;
if (sromrev >= 8) {
pb = SROM8_PATH0;
psz = SROM8_PATH1 - SROM8_PATH0;
} else {
pb = SROM4_PATH0;
psz = SROM4_PATH1 - SROM4_PATH0;
}
for (p = 0; p < MAX_PATH_SROM; p++) {
for (srv = perpath_pci_sromvars; srv->name != NULL;
srv++) {
if ((srv->revmask & sr) == 0)
continue;
if (pb + srv->off < off)
continue;
/* This entry is for mfgc only. Don't generate param for it, */
if (srv->flags & SRFL_NOVAR)
continue;
w = srom[pb + srv->off - off];
ASSERT(mask_valid(srv->mask));
val = (w & srv->mask) >> mask_shift(srv->mask);
width = mask_width(srv->mask);
/* Cheating: no per-path var is more than 1 word */
if ((srv->flags & SRFL_NOFFS)
&& ((int)val == (1 << width) - 1))
continue;
if (srv->flags & SRFL_PRHEX)
varbuf_append(b, "%s%d=0x%x", srv->name,
p, val);
else
varbuf_append(b, "%s%d=%d", srv->name,
p, val);
}
pb += psz;
}
}
}
/*
* Initialize nonvolatile variable table from sprom.
* Return 0 on success, nonzero on error.
*/
static int initvars_srom_pci(si_t *sih, void *curmap, char **vars, uint *count)
{
u16 *srom, *sromwindow;
u8 sromrev = 0;
u32 sr;
varbuf_t b;
char *vp, *base = NULL;
bool flash = false;
int err = 0;
/*
* Apply CRC over SROM content regardless SROM is present or not,
* and use variable <devpath>sromrev's existence in flash to decide
* if we should return an error when CRC fails or read SROM variables
* from flash.
*/
srom = kmalloc(SROM_MAX, GFP_ATOMIC);
ASSERT(srom != NULL);
if (!srom)
return -2;
sromwindow = (u16 *) SROM_OFFSET(sih);
if (si_is_sprom_available(sih)) {
err =
sprom_read_pci(sih, sromwindow, 0, srom, SROM_WORDS,
true);
if ((srom[SROM4_SIGN] == SROM4_SIGNATURE) ||
(((sih->buscoretype == PCIE_CORE_ID)
&& (sih->buscorerev >= 6))
|| ((sih->buscoretype == PCI_CORE_ID)
&& (sih->buscorerev >= 0xe)))) {
/* sromrev >= 4, read more */
err =
sprom_read_pci(sih, sromwindow, 0, srom,
SROM4_WORDS, true);
sromrev = srom[SROM4_CRCREV] & 0xff;
if (err)
BS_ERROR(("%s: srom %d, bad crc\n", __func__,
sromrev));
} else if (err == 0) {
/* srom is good and is rev < 4 */
/* top word of sprom contains version and crc8 */
sromrev = srom[SROM_CRCREV] & 0xff;
/* bcm4401 sroms misprogrammed */
if (sromrev == 0x10)
sromrev = 1;
}
}
#if defined(BCMNVRAMR)
/* Use OTP if SPROM not available */
else {
err = otp_read_pci(sih, srom, SROM_MAX);
if (err == 0)
/* OTP only contain SROM rev8/rev9 for now */
sromrev = srom[SROM4_CRCREV] & 0xff;
else
err = 1;
}
#else
else
err = 1;
#endif
/*
* We want internal/wltest driver to come up with default
* sromvars so we can program a blank SPROM/OTP.
*/
if (err) {
char *value;
u32 val;
val = 0;
BS_ERROR(("Neither SPROM nor OTP has valid image\n"));
value = si_getdevpathvar(sih, "sromrev");
if (value) {
sromrev = (u8) simple_strtoul(value, NULL, 0);
flash = true;
goto varscont;
}
BS_ERROR(("%s, SROM CRC Error\n", __func__));
value = si_getnvramflvar(sih, "sromrev");
if (value) {
err = 0;
goto errout;
}
{
err = -1;
goto errout;
}
}
varscont:
/* Bitmask for the sromrev */
sr = 1 << sromrev;
/* srom version check: Current valid versions: 1, 2, 3, 4, 5, 8, 9 */
if ((sr & 0x33e) == 0) {
err = -2;
goto errout;
}
ASSERT(vars != NULL);
ASSERT(count != NULL);
base = vp = kmalloc(MAXSZ_NVRAM_VARS, GFP_ATOMIC);
ASSERT(vp != NULL);
if (!vp) {
err = -2;
goto errout;
}
/* read variables from flash */
if (flash) {
err = initvars_flash(sih, &vp, MAXSZ_NVRAM_VARS);
if (err)
goto errout;
goto varsdone;
}
varbuf_init(&b, base, MAXSZ_NVRAM_VARS);
/* parse SROM into name=value pairs. */
_initvars_srom_pci(sromrev, srom, 0, &b);
/* final nullbyte terminator */
ASSERT(b.size >= 1);
vp = b.buf;
*vp++ = '\0';
ASSERT((vp - base) <= MAXSZ_NVRAM_VARS);
varsdone:
err = initvars_table(base, vp, vars, count);
errout:
if (base)
kfree(base);
kfree(srom);
return err;
}
#ifdef BCMSDIO
/*
* Read the SDIO cis and call parsecis to initialize the vars.
* Return 0 on success, nonzero on error.
*/
static int initvars_cis_sdio(char **vars, uint *count)
{
u8 *cis[SBSDIO_NUM_FUNCTION + 1];
uint fn, numfn;
int rc = 0;
numfn = bcmsdh_query_iofnum(NULL);
ASSERT(numfn <= SDIOD_MAX_IOFUNCS);
for (fn = 0; fn <= numfn; fn++) {
cis[fn] = kzalloc(SBSDIO_CIS_SIZE_LIMIT, GFP_ATOMIC);
if (cis[fn] == NULL) {
rc = -1;
break;
}
if (bcmsdh_cis_read(NULL, fn, cis[fn], SBSDIO_CIS_SIZE_LIMIT) !=
0) {
kfree(cis[fn]);
rc = -2;
break;
}
}
if (!rc)
rc = srom_parsecis(cis, fn, vars, count);
while (fn-- > 0)
kfree(cis[fn]);
return rc;
}
/* set SDIO sprom command register */
static int sprom_cmd_sdio(u8 cmd)
{
u8 status = 0;
uint wait_cnt = 1000;
/* write sprom command register */
bcmsdh_cfg_write(NULL, SDIO_FUNC_1, SBSDIO_SPROM_CS, cmd, NULL);
/* wait status */
while (wait_cnt--) {
status =
bcmsdh_cfg_read(NULL, SDIO_FUNC_1, SBSDIO_SPROM_CS, NULL);
if (status & SBSDIO_SPROM_DONE)
return 0;
}
return 1;
}
/* read a word from the SDIO srom */
static int sprom_read_sdio(u16 addr, u16 *data)
{
u8 addr_l, addr_h, data_l, data_h;
addr_l = (u8) ((addr * 2) & 0xff);
addr_h = (u8) (((addr * 2) >> 8) & 0xff);
/* set address */
bcmsdh_cfg_write(NULL, SDIO_FUNC_1, SBSDIO_SPROM_ADDR_HIGH, addr_h,
NULL);
bcmsdh_cfg_write(NULL, SDIO_FUNC_1, SBSDIO_SPROM_ADDR_LOW, addr_l,
NULL);
/* do read */
if (sprom_cmd_sdio(SBSDIO_SPROM_READ))
return 1;
/* read data */
data_h =
bcmsdh_cfg_read(NULL, SDIO_FUNC_1, SBSDIO_SPROM_DATA_HIGH, NULL);
data_l =
bcmsdh_cfg_read(NULL, SDIO_FUNC_1, SBSDIO_SPROM_DATA_LOW, NULL);
*data = (data_h << 8) | data_l;
return 0;
}
#endif /* BCMSDIO */
static int initvars_srom_si(si_t *sih, void *curmap, char **vars, uint *varsz)
{
/* Search flash nvram section for srom variables */
return initvars_flash_si(sih, vars, varsz);
}