** this is the number of times to retry the transmission -- this should
** be plenty
**/
-#define XMIT_RETRIES 250
+#define XMIT_RETRIES 5
/*** Register definitions for the 3c905 ***/
enum Registers
#define _outw(v,a) outw((a),(v))
#define _outb(v,a) outb((a),(v))
-/*** a3c90x_internal_IssueCommand: sends a command to the 3c90x card
- ***/
-static int
-a3c90x_internal_IssueCommand(int ioaddr, int cmd, int param)
- {
- unsigned int val;
-
- /** Build the cmd. **/
- val = cmd;
- val <<= 11;
- val |= param;
-
- /** Send the cmd to the cmd register **/
- _outw(val, ioaddr + regCommandIntStatus_w);
+static int _issue_command(int ioaddr, int cmd, int param)
+{
+ outw(ioaddr + regCommandIntStatus_w, (cmd << 11) | param);
- /** Wait for the cmd to complete, if necessary **/
- while (inw(ioaddr + regCommandIntStatus_w) & INT_CMDINPROGRESS);
+ while (inw(ioaddr + regCommandIntStatus_w) & INT_CMDINPROGRESS)
+ ;
- return 0;
- }
+ return 0;
+}
/*** a3c90x_internal_SetWindow: selects a register window set.
***/
-static int
-a3c90x_internal_SetWindow(int ioaddr, int window)
- {
-
- /** Window already as set? **/
- if (INF_3C90X.CurrentWindow == window) return 0;
+static int _set_window(int ioaddr, int window)
+{
+ if (INF_3C90X.CurrentWindow == window)
+ return 0;
- /** Issue the window command. **/
- a3c90x_internal_IssueCommand(ioaddr, cmdSelectRegisterWindow, window);
+ _issue_command(ioaddr, cmdSelectRegisterWindow, window);
INF_3C90X.CurrentWindow = window;
- return 0;
- }
+ return 0;
+}
/*** a3c90x_internal_ReadEeprom - read data from the serial eeprom.
unsigned short val;
/** Select correct window **/
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winEepromBios0);
+ _set_window(INF_3C90X.IOAddr, winEepromBios0);
/** Make sure the eeprom isn't busy **/
do
a3c90x_internal_WriteEepromWord(int ioaddr, int address, unsigned short value)
{
/** Select register window **/
- a3c90x_internal_SetWindow(ioaddr, winEepromBios0);
+ _set_window(ioaddr, winEepromBios0);
/** Verify Eeprom not busy **/
while((1<<15) & inw(ioaddr + regEepromCommand_0_w));
#ifdef CFG_3C90X_PRESERVE_XCVR
int cfg;
/** Read the current InternalConfig value. **/
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winTxRxOptions3);
+ _set_window(INF_3C90X.IOAddr, winTxRxOptions3);
cfg = inl(INF_3C90X.IOAddr + regInternalConfig_3_l);
#endif
/** Send the reset command to the card **/
outputf("3c90x: issuing RESET");
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdGlobalReset, 0);
-
- /** wait for reset command to complete **/
- while (inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_CMDINPROGRESS);
+ _issue_command(INF_3C90X.IOAddr, cmdGlobalReset, 0);
/** global reset command resets station mask, non-B revision cards
** require explicit reset of values
**/
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winAddressing2);
+ _set_window(INF_3C90X.IOAddr, winAddressing2);
_outw(0, INF_3C90X.IOAddr + regStationMask_2_3w+0);
_outw(0, INF_3C90X.IOAddr + regStationMask_2_3w+2);
_outw(0, INF_3C90X.IOAddr + regStationMask_2_3w+4);
#ifdef CFG_3C90X_PRESERVE_XCVR
/** Re-set the original InternalConfig value from before reset **/
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winTxRxOptions3);
+ _set_window(INF_3C90X.IOAddr, winTxRxOptions3);
_outl(cfg, INF_3C90X.IOAddr + regInternalConfig_3_l);
/** enable DC converter for 10-Base-T **/
if ((cfg&0x0300) == 0x0300)
{
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdEnableDcConverter, 0);
+ _issue_command(INF_3C90X.IOAddr, cmdEnableDcConverter, 0);
}
#endif
/** Issue transmit reset, wait for command completion **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdTxReset, 0);
- while (inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_CMDINPROGRESS)
- ;
+ _issue_command(INF_3C90X.IOAddr, cmdTxReset, 0);
if (! INF_3C90X.isBrev)
_outb(0x01, INF_3C90X.IOAddr + regTxFreeThresh_b);
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdTxEnable, 0);
+ _issue_command(INF_3C90X.IOAddr, cmdTxEnable, 0);
/**
** reset of the receiver on B-revision cards re-negotiates the link
** takes several seconds (a computer eternity)
**/
if (INF_3C90X.isBrev)
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdRxReset, 0x04);
+ _issue_command(INF_3C90X.IOAddr, cmdRxReset, 0x04);
else
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdRxReset, 0x00);
- while (inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_CMDINPROGRESS);
- ;
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdRxEnable, 0);
+ _issue_command(INF_3C90X.IOAddr, cmdRxReset, 0x00);
+ while (inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_CMDINPROGRESS)
+ ;
+ _issue_command(INF_3C90X.IOAddr, cmdRxEnable, 0);
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr,
- cmdSetInterruptEnable, 0);
+ _issue_command(INF_3C90X.IOAddr, cmdSetInterruptEnable, 0);
/** enable rxComplete and txComplete **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr,
- cmdSetIndicationEnable, 0x0014);
+ _issue_command(INF_3C90X.IOAddr, cmdSetIndicationEnable, 0x0014);
/** acknowledge any pending status flags **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr,
- cmdAcknowledgeInterrupt, 0x661);
+ _issue_command(INF_3C90X.IOAddr, cmdAcknowledgeInterrupt, 0x661);
return;
}
static void
a3c90x_transmit(const char *dest_addr, unsigned int proto,
unsigned int size, const char *pkt)
- {
-
- struct eth_hdr
+{
+ struct eth_hdr
{
- unsigned char dst_addr[ETH_ALEN];
- unsigned char src_addr[ETH_ALEN];
- unsigned short type;
+ unsigned char dst_addr[ETH_ALEN];
+ unsigned char src_addr[ETH_ALEN];
+ unsigned short type;
} hdr;
+
+ unsigned char status;
+ unsigned int i, retries;
- unsigned char status;
- unsigned i, retries;
-
- for (retries=0; retries < XMIT_RETRIES ; retries++)
+ for (retries=0; retries < XMIT_RETRIES; retries++)
{
- /** Stall the download engine **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdStallCtl, 2);
-
- /** Make sure the card is not waiting on us **/
- inw(INF_3C90X.IOAddr + regCommandIntStatus_w);
- inw(INF_3C90X.IOAddr + regCommandIntStatus_w);
-
- while (inw(INF_3C90X.IOAddr+regCommandIntStatus_w) &
- INT_CMDINPROGRESS)
- ;
-
- /** Set the ethernet packet type **/
- hdr.type = htons(proto);
-
- /** Copy the destination address **/
- memcpy(hdr.dst_addr, dest_addr, ETH_ALEN);
-
- /** Copy our MAC address **/
- memcpy(hdr.src_addr, INF_3C90X.HWAddr, ETH_ALEN);
-
- /** Setup the DPD (download descriptor) **/
- INF_3C90X.TransmitDPD.DnNextPtr = 0;
- /** set notification for transmission completion (bit 15) **/
- INF_3C90X.TransmitDPD.FrameStartHeader = (size + sizeof(hdr)) | 0x8000;
- INF_3C90X.TransmitDPD.HdrAddr = virt_to_bus(&hdr);
- INF_3C90X.TransmitDPD.HdrLength = sizeof(hdr);
- INF_3C90X.TransmitDPD.DataAddr = virt_to_bus(pkt);
- INF_3C90X.TransmitDPD.DataLength = size + (1<<31);
-
- /** Send the packet **/
- _outl(virt_to_bus(&(INF_3C90X.TransmitDPD)),
- INF_3C90X.IOAddr + regDnListPtr_l);
-
- /** End Stall and Wait for upload to complete. **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdStallCtl, 3);
- while(inl(INF_3C90X.IOAddr + regDnListPtr_l) != 0)
- ;
-
- /** Wait for NIC Transmit to Complete **/
- oneshot_start_ms(10); /* Give it 10 ms */
- while (!(inw(INF_3C90X.IOAddr + regCommandIntStatus_w)&0x0004) &&
- oneshot_running())
- ;
-
- if (!(inw(INF_3C90X.IOAddr + regCommandIntStatus_w)&0x0004))
- {
- outputf("3C90X: Tx Timeout");
- continue;
- }
-
- status = inb(INF_3C90X.IOAddr + regTxStatus_b);
-
- /** acknowledge transmit interrupt by writing status **/
- _outb(0x00, INF_3C90X.IOAddr + regTxStatus_b);
-
- /** successful completion (sans "interrupt Requested" bit) **/
- if ((status & 0xbf) == 0x80)
- return;
-
- outputf("3C90X: Status (%hhX)", status);
- /** check error codes **/
- if (status & 0x02)
- {
- outputf("3C90X: Tx Reclaim Error (%hhX)", status);
- a3c90x_reset();
- }
- else if (status & 0x04)
- {
- outputf("3C90X: Tx Status Overflow (%hhX)", status);
- for (i=0; i<32; i++)
- _outb(0x00, INF_3C90X.IOAddr + regTxStatus_b);
- /** must re-enable after max collisions before re-issuing tx **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdTxEnable, 0);
- }
- else if (status & 0x08)
- {
- outputf("3C90X: Tx Max Collisions (%hhX)", status);
- /** must re-enable after max collisions before re-issuing tx **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdTxEnable, 0);
- }
- else if (status & 0x10)
- {
- outputf("3C90X: Tx Underrun (%hhX)", status);
- a3c90x_reset();
- }
- else if (status & 0x20)
- {
- outputf("3C90X: Tx Jabber (%hhX)", status);
- a3c90x_reset();
- }
- else if ((status & 0x80) != 0x80)
- {
- outputf("3C90X: Internal Error - Incomplete Transmission (%hhX)",
- status);
- a3c90x_reset();
- }
+ if (retries != 0)
+ outputf("3c90x: retrying packet send (%d)", retries);
+
+ _issue_command(INF_3C90X.IOAddr, cmdStallCtl, 2 /* Stall download */);
+
+ hdr.type = htons(proto);
+ memcpy(hdr.dst_addr, dest_addr, ETH_ALEN);
+ memcpy(hdr.src_addr, INF_3C90X.HWAddr, ETH_ALEN);
+
+ /** Setup the DPD (download descriptor) **/
+ INF_3C90X.TransmitDPD.DnNextPtr = 0;
+ /** set notification for transmission completion (bit 15) **/
+ INF_3C90X.TransmitDPD.FrameStartHeader = (size + sizeof(hdr)) | 0x8000;
+ INF_3C90X.TransmitDPD.HdrAddr = virt_to_bus(&hdr);
+ INF_3C90X.TransmitDPD.HdrLength = sizeof(hdr);
+ INF_3C90X.TransmitDPD.DataAddr = virt_to_bus(pkt);
+ INF_3C90X.TransmitDPD.DataLength = size + (1<<31);
+
+ /** Send the packet **/
+ outl(INF_3C90X.IOAddr + regDnListPtr_l, virt_to_bus(&(INF_3C90X.TransmitDPD)));
+ _issue_command(INF_3C90X.IOAddr, cmdStallCtl, 3 /* Unstall download */);
+
+ oneshot_start_ms(100);
+ while((inl(INF_3C90X.IOAddr + regDnListPtr_l) != 0) && oneshot_running())
+ ;
+ if (!oneshot_running())
+ outputf("3c90x: Download engine pointer timeout");
+
+ oneshot_start_ms(10); /* Give it 10 ms */
+ while (!(inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_TXCOMPLETE) && oneshot_running())
+ ;
+
+ if (!(inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_TXCOMPLETE))
+ {
+ outputf("3c90x: tx timeout? txstat %02x", inb(INF_3C90X.IOAddr + regTxStatus_b));
+ outputf("3c90x: Gen sts %04x", inw(INF_3C90X.IOAddr + regCommandIntStatus_w));
+ continue;
+ }
+ status = inb(INF_3C90X.IOAddr + regTxStatus_b);
+ outb(INF_3C90X.IOAddr + regTxStatus_b, 0x00);
+
+ /** successful completion (sans "interrupt Requested" bit) **/
+ if ((status & 0xbf) == 0x80)
+ return;
+
+ outputf("3c90x: Status (%hhX)", status);
+ /** check error codes **/
+ if (status & 0x02)
+ {
+ outputf("3c90x: Tx Reclaim Error (%hhX)", status);
+ a3c90x_reset();
+ } else if (status & 0x04) {
+ outputf("3c90x: Tx Status Overflow (%hhX)", status);
+ for (i=0; i<32; i++)
+ _outb(0x00, INF_3C90X.IOAddr + regTxStatus_b);
+ /** must re-enable after max collisions before re-issuing tx **/
+ _issue_command(INF_3C90X.IOAddr, cmdTxEnable, 0);
+ } else if (status & 0x08) {
+ outputf("3c90x: Tx Max Collisions (%hhX)", status);
+ /** must re-enable after max collisions before re-issuing tx **/
+ _issue_command(INF_3C90X.IOAddr, cmdTxEnable, 0);
+ } else if (status & 0x10) {
+ outputf("3c90x: Tx Underrun (%hhX)", status);
+ a3c90x_reset();
+ } else if (status & 0x20) {
+ outputf("3c90x: Tx Jabber (%hhX)", status);
+ a3c90x_reset();
+ } else if ((status & 0x80) != 0x80) {
+ outputf("3c90x: Internal Error - Incomplete Transmission (%hhX)", status);
+ a3c90x_reset();
+ }
}
- /** failed after RETRY attempts **/
- outputf("Failed to send after %d retries", retries);
- return;
-
- }
+ /** failed after RETRY attempts **/
+ outputf("3c90x: Failed to send after %d retries", retries);
+ return;
+}
"effects. See 3c90x.txt for info.");
}
#endif
- {
- unsigned int tmp;
- for (tmp = 0; tmp < 0x10; tmp+= 4)
- outputf("EEPROM adr %02x, data %04x %04x %04x %04x",
- tmp, eeprom[tmp], eeprom[tmp+1], eeprom[tmp+2], eeprom[tmp+3]);
- }
-
- /* Some type A... */
/** Retrieve the Hardware address and print it on the screen. **/
INF_3C90X.HWAddr[0] = eeprom[HWADDR_OFFSET + 0]>>8;
/** 3C556: Invert MII power **/
if (INF_3C90X.is3c556) {
unsigned int tmp;
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winAddressing2);
+ _set_window(INF_3C90X.IOAddr, winAddressing2);
tmp = inw(INF_3C90X.IOAddr + regResetOptions_2_w);
tmp |= 0x4000;
_outw(tmp, INF_3C90X.IOAddr + regResetOptions_2_w);
}
/* Test if the link is good, if not continue */
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winDiagnostics4);
+ _set_window(INF_3C90X.IOAddr, winDiagnostics4);
mstat = inw(INF_3C90X.IOAddr + regMediaStatus_4_w);
if((mstat & (1<<11)) == 0) {
outputf("Valid link not established");
}
/** Program the MAC address into the station address registers **/
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winAddressing2);
+ _set_window(INF_3C90X.IOAddr, winAddressing2);
_outw(htons(eeprom[HWADDR_OFFSET + 0]), INF_3C90X.IOAddr + regStationAddress_2_3w);
_outw(htons(eeprom[HWADDR_OFFSET + 1]), INF_3C90X.IOAddr + regStationAddress_2_3w+2);
_outw(htons(eeprom[HWADDR_OFFSET + 2]), INF_3C90X.IOAddr + regStationAddress_2_3w+4);
** Uses Media Option command on B revision, Reset Option on non-B
** revision cards -- same register address
**/
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winTxRxOptions3);
+ _set_window(INF_3C90X.IOAddr, winTxRxOptions3);
mopt = inw(INF_3C90X.IOAddr + regResetMediaOptions_3_w);
/** mask out VCO bit that is defined as 10baseFL bit on B-rev cards **/
/** enable DC converter for 10-Base-T **/
if (linktype == 0x0003)
{
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdEnableDcConverter, 0);
+ _issue_command(INF_3C90X.IOAddr, cmdEnableDcConverter, 0);
}
/** Set the link to the type we just determined. **/
- a3c90x_internal_SetWindow(INF_3C90X.IOAddr, winTxRxOptions3);
+ _set_window(INF_3C90X.IOAddr, winTxRxOptions3);
cfg = inl(INF_3C90X.IOAddr + regInternalConfig_3_l);
cfg &= ~(0xF<<20);
cfg |= (linktype<<20);
_outl(cfg, INF_3C90X.IOAddr + regInternalConfig_3_l);
/** Now that we set the xcvr type, reset the Tx and Rx, re-enable. **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdTxReset, 0x00);
- while (inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_CMDINPROGRESS)
- ;
-
+ _issue_command(INF_3C90X.IOAddr, cmdTxReset, 0);
if (!INF_3C90X.isBrev)
_outb(0x01, INF_3C90X.IOAddr + regTxFreeThresh_b);
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdTxEnable, 0);
+ _issue_command(INF_3C90X.IOAddr, cmdTxEnable, 0);
/**
** reset of the receiver on B-revision cards re-negotiates the link
** takes several seconds (a computer eternity)
**/
if (INF_3C90X.isBrev)
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdRxReset, 0x04);
+ _issue_command(INF_3C90X.IOAddr, cmdRxReset, 0x04);
else
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdRxReset, 0x00);
- while (inw(INF_3C90X.IOAddr + regCommandIntStatus_w) & INT_CMDINPROGRESS)
- ;
+ _issue_command(INF_3C90X.IOAddr, cmdRxReset, 0x00);
/** Set the RX filter = receive only individual pkts & multicast & bcast. **/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdSetRxFilter, 0x01 + 0x02 + 0x04);
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdRxEnable, 0);
+ _issue_command(INF_3C90X.IOAddr, cmdSetRxFilter, 0x01 + 0x02 + 0x04);
+ _issue_command(INF_3C90X.IOAddr, cmdRxEnable, 0);
/**
** set Indication and Interrupt flags , acknowledge any IRQ's
**/
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr, cmdSetInterruptEnable, 0);
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr,
- cmdSetIndicationEnable, 0x0014);
- a3c90x_internal_IssueCommand(INF_3C90X.IOAddr,
- cmdAcknowledgeInterrupt, 0x661);
+ _issue_command(INF_3C90X.IOAddr, cmdSetInterruptEnable, 0);
+ _issue_command(INF_3C90X.IOAddr, cmdSetIndicationEnable, 0x0014);
+ _issue_command(INF_3C90X.IOAddr, cmdAcknowledgeInterrupt, 0x661);
/* * Set our exported functions **/
nic.poll = a3c90x_poll;
git.joshuawise.com / netwatch.git / blobdiff