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openwrtv3/openwrt/package/linux/kernel-source/drivers/net/hnd/bcmsrom.c

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/*
* Misc useful routines to access NIC SROM
*
* Copyright 2004, Broadcom Corporation
* All Rights Reserved.
*
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
* $Id$
*/
#include <typedefs.h>
#include <osl.h>
#include <bcmutils.h>
#include <bcmsrom.h>
#include <bcmdevs.h>
#include <bcmendian.h>
#include <sbpcmcia.h>
#include <pcicfg.h>
#include <sbutils.h>
#include <proto/ethernet.h> /* for sprom content groking */
#define VARS_MAX 4096 /* should be reduced */
static int initvars_srom_pci(void *curmap, char **vars, int *count);
static int initvars_cis_pcmcia(void *sbh, void *curmap, void *osh, char **vars, int *count);
static int sprom_cmd_pcmcia(void *osh, uint8 cmd);
static int sprom_read_pcmcia(void *osh, uint16 addr, uint16 *data);
static int sprom_write_pcmcia(void *osh, uint16 addr, uint16 data);
static int sprom_read_pci(uint16 *sprom, uint byteoff, uint16 *buf, uint nbytes, bool check_crc);
/*
* Initialize the vars from the right source for this platform.
* Return 0 on success, nonzero on error.
*/
int
srom_var_init(void *sbh, uint bus, void *curmap, void *osh, char **vars, int *count)
{
if (vars == NULL)
return (0);
switch (bus) {
case SB_BUS:
/* These two could be asserts ... */
*vars = NULL;
*count = 0;
return(0);
case PCI_BUS:
ASSERT(curmap); /* can not be NULL */
return(initvars_srom_pci(curmap, vars, count));
case PCMCIA_BUS:
return(initvars_cis_pcmcia(sbh, curmap, osh, vars, count));
default:
ASSERT(0);
}
return (-1);
}
/* support only 16-bit word read from srom */
int
srom_read(uint bus, void *curmap, void *osh, uint byteoff, uint nbytes, uint16 *buf)
{
void *srom;
uint i, off, nw;
/* check input - 16-bit access only */
if (byteoff & 1 || nbytes & 1 || (byteoff + nbytes) > (SPROM_SIZE * 2))
return 1;
if (bus == PCI_BUS) {
if (!curmap)
return 1;
srom = (void *)((uint)curmap + PCI_BAR0_SPROM_OFFSET);
if (sprom_read_pci(srom, byteoff, buf, nbytes, FALSE))
return 1;
} else if (bus == PCMCIA_BUS) {
off = byteoff / 2;
nw = nbytes / 2;
for (i = 0; i < nw; i++) {
if (sprom_read_pcmcia(osh, (uint16)(off + i), (uint16*)(buf + i)))
return 1;
}
} else {
return 1;
}
return 0;
}
/* support only 16-bit word write into srom */
int
srom_write(uint bus, void *curmap, void *osh, uint byteoff, uint nbytes, uint16 *buf)
{
uint16 *srom;
uint i, off, nw, crc_range;
uint16 image[SPROM_SIZE], *p;
uint8 crc;
volatile uint32 val32;
/* check input - 16-bit access only */
if (byteoff & 1 || nbytes & 1 || (byteoff + nbytes) > (SPROM_SIZE * 2))
return 1;
crc_range = ((bus == PCMCIA_BUS) ? SPROM_SIZE : SPROM_CRC_RANGE) * 2;
/* if changes made inside crc cover range */
if (byteoff < crc_range) {
nw = (((byteoff + nbytes) > crc_range) ? byteoff + nbytes : crc_range) / 2;
/* read data including entire first 64 words from srom */
if (srom_read(bus, curmap, osh, 0, nw * 2, image))
return 1;
/* make changes */
bcopy((void*)buf, (void*)&image[byteoff / 2], nbytes);
/* calculate crc */
htol16_buf(image, crc_range);
crc = ~crc8((uint8 *)image, crc_range - 1, CRC8_INIT_VALUE);
ltoh16_buf(image, crc_range);
image[(crc_range / 2) - 1] = (crc << 8) | (image[(crc_range / 2) - 1] & 0xff);
p = image;
off = 0;
} else {
p = buf;
off = byteoff / 2;
nw = nbytes / 2;
}
if (bus == PCI_BUS) {
srom = (uint16*)((uint)curmap + PCI_BAR0_SPROM_OFFSET);
/* enable writes to the SPROM */
val32 = OSL_PCI_READ_CONFIG(osh, PCI_SPROM_CONTROL, sizeof(uint32));
val32 |= SPROM_WRITEEN;
OSL_PCI_WRITE_CONFIG(osh, PCI_SPROM_CONTROL, sizeof(uint32), val32);
bcm_mdelay(500);
/* write srom */
for (i = 0; i < nw; i++) {
W_REG(&srom[off + i], p[i]);
bcm_mdelay(20);
}
/* disable writes to the SPROM */
OSL_PCI_WRITE_CONFIG(osh, PCI_SPROM_CONTROL, sizeof(uint32), val32 & ~SPROM_WRITEEN);
} else if (bus == PCMCIA_BUS) {
/* enable writes to the SPROM */
if (sprom_cmd_pcmcia(osh, SROM_WEN))
return 1;
bcm_mdelay(500);
/* write srom */
for (i = 0; i < nw; i++) {
sprom_write_pcmcia(osh, (uint16)(off + i), p[i]);
bcm_mdelay(20);
}
/* disable writes to the SPROM */
if (sprom_cmd_pcmcia(osh, SROM_WDS))
return 1;
} else {
return 1;
}
bcm_mdelay(500);
return 0;
}
int
srom_parsecis(uint8 *cis, char **vars, int *count)
{
char eabuf[32];
char *vp, *base;
uint8 tup, tlen, sromrev = 1;
int i, j;
uint varsize;
bool ag_init = FALSE;
uint16 w;
ASSERT(vars);
ASSERT(count);
base = vp = MALLOC(VARS_MAX);
ASSERT(vp);
i = 0;
do {
tup = cis[i++];
tlen = cis[i++];
if ((i + tlen) >= CIS_SIZE)
break;
switch (tup) {
case CISTPL_MANFID:
vp += sprintf(vp, "manfid=%d", (cis[i + 1] << 8) + cis[i]);
vp++;
vp += sprintf(vp, "prodid=%d", (cis[i + 3] << 8) + cis[i + 2]);
vp++;
break;
case CISTPL_FUNCE:
if (cis[i] == LAN_NID) {
ASSERT(cis[i + 1] == ETHER_ADDR_LEN);
bcm_ether_ntoa((uchar*)&cis[i + 2], eabuf);
vp += sprintf(vp, "il0macaddr=%s", eabuf);
vp++;
}
break;
case CISTPL_CFTABLE:
vp += sprintf(vp, "regwindowsz=%d", (cis[i + 7] << 8) | cis[i + 6]);
vp++;
break;
case CISTPL_BRCM_HNBU:
switch (cis[i]) {
case HNBU_CHIPID:
vp += sprintf(vp, "vendid=%d", (cis[i + 2] << 8) + cis[i + 1]);
vp++;
vp += sprintf(vp, "devid=%d", (cis[i + 4] << 8) + cis[i + 3]);
vp++;
if (tlen == 7) {
vp += sprintf(vp, "chiprev=%d", (cis[i + 6] << 8) + cis[i + 5]);
vp++;
}
break;
case HNBU_BOARDREV:
vp += sprintf(vp, "boardrev=%d", cis[i + 1]);
vp++;
break;
case HNBU_AA:
vp += sprintf(vp, "aa0=%d", cis[i + 1]);
vp++;
break;
case HNBU_AG:
vp += sprintf(vp, "ag0=%d", cis[i + 1]);
vp++;
ag_init = TRUE;
break;
case HNBU_CC:
vp += sprintf(vp, "cc=%d", cis[i + 1]);
vp++;
break;
case HNBU_PAPARMS:
vp += sprintf(vp, "pa0maxpwr=%d", cis[i + tlen - 1]);
vp++;
if (tlen == 9) {
/* New version */
for (j = 0; j < 3; j++) {
vp += sprintf(vp, "pa0b%d=%d", j,
(cis[i + (j * 2) + 2] << 8) + cis[i + (j * 2) + 1]);
vp++;
}
vp += sprintf(vp, "pa0itssit=%d", cis[i + 7]);
vp++;
}
break;
case HNBU_OEM:
vp += sprintf(vp, "oem=%02x%02x%02x%02x%02x%02x%02x%02x",
cis[i + 1], cis[i + 2], cis[i + 3], cis[i + 4],
cis[i + 5], cis[i + 6], cis[i + 7], cis[i + 8]);
vp++;
break;
case HNBU_BOARDFLAGS:
w = (cis[i + 2] << 8) + cis[i + 1];
if (w == 0xffff) w = 0;
vp += sprintf(vp, "boardflags=%d", w);
vp++;
break;
case HNBU_LED:
if (cis[i + 1] != 0xff) {
vp += sprintf(vp, "wl0gpio0=%d", cis[i + 1]);
vp++;
}
if (cis[i + 2] != 0xff) {
vp += sprintf(vp, "wl0gpio1=%d", cis[i + 2]);
vp++;
}
if (cis[i + 3] != 0xff) {
vp += sprintf(vp, "wl0gpio2=%d", cis[i + 3]);
vp++;
}
if (cis[i + 4] != 0xff) {
vp += sprintf(vp, "wl0gpio3=%d", cis[i + 4]);
vp++;
}
break;
}
break;
}
i += tlen;
} while (tup != 0xff);
/* Set the srom version */
vp += sprintf(vp, "sromrev=%d", sromrev);
vp++;
/* For now just set boardflags2 to zero */
vp += sprintf(vp, "boardflags2=0");
vp++;
/* if there is no antenna gain field, set default */
if (ag_init == FALSE) {
vp += sprintf(vp, "ag0=%d", 0xff);
vp++;
}
/* final nullbyte terminator */
*vp++ = '\0';
varsize = (uint)vp - (uint)base;
ASSERT(varsize < VARS_MAX);
if (varsize == VARS_MAX) {
*vars = base;
} else {
vp = MALLOC(varsize);
ASSERT(vp);
bcopy(base, vp, varsize);
MFREE(base, VARS_MAX);
*vars = vp;
}
*count = varsize;
return (0);
}
/* set PCMCIA sprom command register */
static int
sprom_cmd_pcmcia(void *osh, uint8 cmd)
{
uint8 status;
uint wait_cnt = 1000;
/* write sprom command register */
OSL_PCMCIA_WRITE_ATTR(osh, SROM_CS, &cmd, 1);
/* wait status */
while (wait_cnt--) {
OSL_PCMCIA_READ_ATTR(osh, SROM_CS, &status, 1);
if (status & SROM_DONE)
return 0;
}
return 1;
}
/* read a word from the PCMCIA srom */
static int
sprom_read_pcmcia(void *osh, uint16 addr, uint16 *data)
{
uint8 addr_l, addr_h, data_l, data_h;
addr_l = (uint8)((addr * 2) & 0xff);
addr_h = (uint8)(((addr * 2) >> 8) & 0xff);
/* set address */
OSL_PCMCIA_WRITE_ATTR(osh, SROM_ADDRH, &addr_h, 1);
OSL_PCMCIA_WRITE_ATTR(osh, SROM_ADDRL, &addr_l, 1);
/* do read */
if (sprom_cmd_pcmcia(osh, SROM_READ))
return 1;
/* read data */
OSL_PCMCIA_READ_ATTR(osh, SROM_DATAH, &data_h, 1);
OSL_PCMCIA_READ_ATTR(osh, SROM_DATAL, &data_l, 1);
*data = (data_h << 8) | data_l;
return 0;
}
/* write a word to the PCMCIA srom */
static int
sprom_write_pcmcia(void *osh, uint16 addr, uint16 data)
{
uint8 addr_l, addr_h, data_l, data_h;
addr_l = (uint8)((addr * 2) & 0xff);
addr_h = (uint8)(((addr * 2) >> 8) & 0xff);
data_l = (uint8)(data & 0xff);
data_h = (uint8)((data >> 8) & 0xff);
/* set address */
OSL_PCMCIA_WRITE_ATTR(osh, SROM_ADDRH, &addr_h, 1);
OSL_PCMCIA_WRITE_ATTR(osh, SROM_ADDRL, &addr_l, 1);
/* write data */
OSL_PCMCIA_WRITE_ATTR(osh, SROM_DATAH, &data_h, 1);
OSL_PCMCIA_WRITE_ATTR(osh, SROM_DATAL, &data_l, 1);
/* do write */
return sprom_cmd_pcmcia(osh, SROM_WRITE);
}
/*
* Read in and validate sprom.
* Return 0 on success, nonzero on error.
*/
static int
sprom_read_pci(uint16 *sprom, uint byteoff, uint16 *buf, uint nbytes, bool check_crc)
{
int off, nw;
uint8 chk8;
int i;
off = byteoff / 2;
nw = ROUNDUP(nbytes, 2) / 2;
/* read the sprom */
for (i = 0; i < nw; i++)
buf[i] = R_REG(&sprom[off + i]);
if (check_crc) {
/* fixup the endianness so crc8 will pass */
htol16_buf(buf, nw * 2);
if ((chk8 = crc8((uchar*)buf, nbytes, CRC8_INIT_VALUE)) != CRC8_GOOD_VALUE)
return (1);
/* now correct the endianness of the byte array */
ltoh16_buf(buf, nw * 2);
}
return (0);
}
/*
* Initialize nonvolatile variable table from sprom.
* Return 0 on success, nonzero on error.
*/
static int
initvars_srom_pci(void *curmap, char **vars, int *count)
{
uint16 w, b[64];
uint8 sromrev;
struct ether_addr ea;
char eabuf[32];
uint32 bfl;
int c, woff, i;
char *vp, *base;
if (sprom_read_pci((void *)((uint)curmap + PCI_BAR0_SPROM_OFFSET), 0, b, sizeof (b), TRUE))
return (-1);
/* top word of sprom contains version and crc8 */
sromrev = b[63] & 0xff;
if ((sromrev != 1) && (sromrev != 2)) {
return (-2);
}
ASSERT(vars);
ASSERT(count);
base = vp = MALLOC(VARS_MAX);
ASSERT(vp);
vp += sprintf(vp, "sromrev=%d", sromrev);
vp++;
if (sromrev >= 2) {
/* New section takes over the 4th hardware function space */
/* Word 29 is max power 11a high/low */
w = b[29];
vp += sprintf(vp, "pa1himaxpwr=%d", w & 0xff);
vp++;
vp += sprintf(vp, "pa1lomaxpwr=%d", (w >> 8) & 0xff);
vp++;
/* Words 30-32 set the 11alow pa settings,
* 33-35 are the 11ahigh ones.
*/
for (i = 0; i < 3; i++) {
vp += sprintf(vp, "pa1lob%d=%d", i, b[30 + i]);
vp++;
vp += sprintf(vp, "pa1hib%d=%d", i, b[33 + i]);
vp++;
}
w = b[59];
if (w == 0)
vp += sprintf(vp, "ccode=");
else
vp += sprintf(vp, "ccode=%c%c", (w >> 8), (w & 0xff));
vp++;
}
/* parameter section of sprom starts at byte offset 72 */
woff = 72/2;
/* first 6 bytes are il0macaddr */
ea.octet[0] = (b[woff] >> 8) & 0xff;
ea.octet[1] = b[woff] & 0xff;
ea.octet[2] = (b[woff+1] >> 8) & 0xff;
ea.octet[3] = b[woff+1] & 0xff;
ea.octet[4] = (b[woff+2] >> 8) & 0xff;
ea.octet[5] = b[woff+2] & 0xff;
woff += ETHER_ADDR_LEN/2 ;
bcm_ether_ntoa((uchar*)&ea, eabuf);
vp += sprintf(vp, "il0macaddr=%s", eabuf);
vp++;
/* next 6 bytes are et0macaddr */
ea.octet[0] = (b[woff] >> 8) & 0xff;
ea.octet[1] = b[woff] & 0xff;
ea.octet[2] = (b[woff+1] >> 8) & 0xff;
ea.octet[3] = b[woff+1] & 0xff;
ea.octet[4] = (b[woff+2] >> 8) & 0xff;
ea.octet[5] = b[woff+2] & 0xff;
woff += ETHER_ADDR_LEN/2 ;
bcm_ether_ntoa((uchar*)&ea, eabuf);
vp += sprintf(vp, "et0macaddr=%s", eabuf);
vp++;
/* next 6 bytes are et1macaddr */
ea.octet[0] = (b[woff] >> 8) & 0xff;
ea.octet[1] = b[woff] & 0xff;
ea.octet[2] = (b[woff+1] >> 8) & 0xff;
ea.octet[3] = b[woff+1] & 0xff;
ea.octet[4] = (b[woff+2] >> 8) & 0xff;
ea.octet[5] = b[woff+2] & 0xff;
woff += ETHER_ADDR_LEN/2 ;
bcm_ether_ntoa((uchar*)&ea, eabuf);
vp += sprintf(vp, "et1macaddr=%s", eabuf);
vp++;
/*
* Enet phy settings one or two singles or a dual
* Bits 4-0 : MII address for enet0 (0x1f for not there)
* Bits 9-5 : MII address for enet1 (0x1f for not there)
* Bit 14 : Mdio for enet0
* Bit 15 : Mdio for enet1
*/
w = b[woff];
vp += sprintf(vp, "et0phyaddr=%d", (w & 0x1f));
vp++;
vp += sprintf(vp, "et1phyaddr=%d", ((w >> 5) & 0x1f));
vp++;
vp += sprintf(vp, "et0mdcport=%d", ((w >> 14) & 0x1));
vp++;
vp += sprintf(vp, "et1mdcport=%d", ((w >> 15) & 0x1));
vp++;
/* Word 46 has board rev, antennas 0/1 & Country code/control */
w = b[46];
vp += sprintf(vp, "boardrev=%d", w & 0xff);
vp++;
if (sromrev > 1)
vp += sprintf(vp, "cctl=%d", (w >> 8) & 0xf);
else
vp += sprintf(vp, "cc=%d", (w >> 8) & 0xf);
vp++;
vp += sprintf(vp, "aa0=%d", (w >> 12) & 0x3);
vp++;
vp += sprintf(vp, "aa1=%d", (w >> 14) & 0x3);
vp++;
/* Words 47-49 set the (wl) pa settings */
woff = 47;
for (i = 0; i < 3; i++) {
vp += sprintf(vp, "pa0b%d=%d", i, b[woff+i]);
vp++;
vp += sprintf(vp, "pa1b%d=%d", i, b[woff+i+6]);
vp++;
}
/*
* Words 50-51 set the customer-configured wl led behavior.
* 8 bits/gpio pin. High bit: activehi=0, activelo=1;
* LED behavior values defined in wlioctl.h .
*/
w = b[50];
if ((w != 0) && (w != 0xffff)) {
/* gpio0 */
vp += sprintf(vp, "wl0gpio0=%d", (w & 0xff));
vp++;
/* gpio1 */
vp += sprintf(vp, "wl0gpio1=%d", (w >> 8) & 0xff);
vp++;
}
w = b[51];
if ((w != 0) && (w != 0xffff)) {
/* gpio2 */
vp += sprintf(vp, "wl0gpio2=%d", w & 0xff);
vp++;
/* gpio3 */
vp += sprintf(vp, "wl0gpio3=%d", (w >> 8) & 0xff);
vp++;
}
/* Word 52 is max power 0/1 */
w = b[52];
vp += sprintf(vp, "pa0maxpwr=%d", w & 0xff);
vp++;
vp += sprintf(vp, "pa1maxpwr=%d", (w >> 8) & 0xff);
vp++;
/* Word 56 is idle tssi target 0/1 */
w = b[56];
vp += sprintf(vp, "pa0itssit=%d", w & 0xff);
vp++;
vp += sprintf(vp, "pa1itssit=%d", (w >> 8) & 0xff);
vp++;
/* Word 57 is boardflags, if not programmed make it zero */
bfl = (uint32)b[57];
if (bfl == 0xffff) bfl = 0;
if (sromrev > 1) {
/* Word 28 is boardflags2 */
bfl |= (uint32)b[28] << 16;
}
vp += sprintf(vp, "boardflags=%d", bfl);
vp++;
/* Word 58 is antenna gain 0/1 */
w = b[58];
vp += sprintf(vp, "ag0=%d", w & 0xff);
vp++;
vp += sprintf(vp, "ag1=%d", (w >> 8) & 0xff);
vp++;
if (sromrev == 1) {
/* set the oem string */
vp += sprintf(vp, "oem=%02x%02x%02x%02x%02x%02x%02x%02x",
((b[59] >> 8) & 0xff), (b[59] & 0xff),
((b[60] >> 8) & 0xff), (b[60] & 0xff),
((b[61] >> 8) & 0xff), (b[61] & 0xff),
((b[62] >> 8) & 0xff), (b[62] & 0xff));
vp++;
} else {
if (sromrev >= 1){
/* Word 60 OFDM tx power offset from CCK level */
/* OFDM Power Offset - opo */
w = b[60] & 0xff;
if (w == 0xff)
w = 16;
vp += sprintf(vp, "opo=%d", w);
vp++;
}
}
/* final nullbyte terminator */
*vp++ = '\0';
c = vp - base;
ASSERT(c <= VARS_MAX);
if (c == VARS_MAX) {
*vars = base;
} else {
vp = MALLOC(c);
ASSERT(vp);
bcopy(base, vp, c);
MFREE(base, VARS_MAX);
*vars = vp;
}
*count = c;
return (0);
}
/*
* Read the cis and call parsecis to initialize the vars.
* Return 0 on success, nonzero on error.
*/
static int
initvars_cis_pcmcia(void *sbh, void *curmap, void *osh, char **vars, int *count)
{
uint8 *cis = NULL;
int rc;
uint data_sz;
data_sz = (sb_pcmciarev(sbh) == 1) ? (SPROM_SIZE * 2) : CIS_SIZE;
if ((cis = MALLOC(data_sz)) == NULL)
return (-1);
if (sb_pcmciarev(sbh) == 1) {
if (srom_read(PCMCIA_BUS, (void *)NULL, osh, 0, data_sz, (uint16 *)cis)) {
MFREE(cis, data_sz);
return (-1);
}
/* fix up endianess for 16-bit data vs 8-bit parsing */
ltoh16_buf((uint16 *)cis, data_sz);
} else
OSL_PCMCIA_READ_ATTR(osh, 0, cis, data_sz);
rc = srom_parsecis(cis, vars, count);
MFREE(cis, data_sz);
return (rc);
}
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