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authorMichael Brown2005-04-14 21:07:53 +0200
committerMichael Brown2005-04-14 21:07:53 +0200
commita80fe976ed2227d4d959d8206982eaebb971afa2 (patch)
tree1028a0831b73231d766d964a03369c5c44c44ac8 /src/drivers/net/smc9000.c
parentAdded a generalised ISA device-probing mechanism. (diff)
downloadipxe-a80fe976ed2227d4d959d8206982eaebb971afa2.tar.gz
ipxe-a80fe976ed2227d4d959d8206982eaebb971afa2.tar.xz
ipxe-a80fe976ed2227d4d959d8206982eaebb971afa2.zip
Updated to common ISA bus API.
Diffstat (limited to 'src/drivers/net/smc9000.c')
-rw-r--r--src/drivers/net/smc9000.c279
1 files changed, 118 insertions, 161 deletions
diff --git a/src/drivers/net/smc9000.c b/src/drivers/net/smc9000.c
index a67c1be4..cd394d43 100644
--- a/src/drivers/net/smc9000.c
+++ b/src/drivers/net/smc9000.c
@@ -27,7 +27,6 @@
*
*---------------------------------------------------------------------------*/
#define LINUX_OUT_MACROS 1
-#define SMC9000_VERBOSE 1
#define SMC9000_DEBUG 0
#include "etherboot.h"
@@ -39,7 +38,6 @@
# define _outw outw
static const char smc9000_version[] = "Version 0.99 98-09-30";
-static unsigned int smc9000_base=0;
static const char *interfaces[ 2 ] = { "TP", "AUI" };
static const char *chip_ids[ 15 ] = {
NULL, NULL, NULL,
@@ -97,11 +95,11 @@ static void smc_reset(int ioaddr)
/*----------------------------------------------------------------------
- * Function: smc_probe( int ioaddr )
+ * Function: smc9000_probe_addr( int ioaddr )
*
* Purpose:
* Tests to see if a given ioaddr points to an SMC9xxx chip.
- * Returns a 0 on success
+ * Returns a 1 on success
*
* Algorithm:
* (1) see if the high byte of BANK_SELECT is 0x33
@@ -110,7 +108,7 @@ static void smc_reset(int ioaddr)
*
* ---------------------------------------------------------------------
*/
-static int smc_probe( int ioaddr )
+static int smc9000_probe_addr( unsigned short ioaddr )
{
word bank;
word revision_register;
@@ -119,14 +117,14 @@ static int smc_probe( int ioaddr )
/* First, see if the high byte is 0x33 */
bank = inw(ioaddr + BANK_SELECT);
if ((bank & 0xFF00) != 0x3300) {
- return -1;
+ return 0;
}
/* The above MIGHT indicate a device, but I need to write to further
* test this. */
_outw(0x0, ioaddr + BANK_SELECT);
bank = inw(ioaddr + BANK_SELECT);
if ((bank & 0xFF00) != 0x3300) {
- return -1;
+ return 0;
}
/* well, we've already written once, so hopefully another time won't
@@ -136,14 +134,12 @@ static int smc_probe( int ioaddr )
base_address_register = inw(ioaddr + BASE);
if (ioaddr != (base_address_register >> 3 & 0x3E0)) {
-#ifdef SMC9000_VERBOSE
- printf("SMC9000: IOADDR %hX doesn't match configuration (%hX)."
- "Probably not a SMC chip\n",
- ioaddr, base_address_register >> 3 & 0x3E0);
-#endif
+ DBG("SMC9000: IOADDR %hX doesn't match configuration (%hX)."
+ "Probably not a SMC chip\n",
+ ioaddr, base_address_register >> 3 & 0x3E0);
/* well, the base address register didn't match. Must not have
* been a SMC chip after all. */
- return -1;
+ return 0;
}
@@ -154,17 +150,15 @@ static int smc_probe( int ioaddr )
revision_register = inw(ioaddr + REVISION);
if (!chip_ids[(revision_register >> 4) & 0xF]) {
/* I don't recognize this chip, so... */
-#ifdef SMC9000_VERBOSE
- printf("SMC9000: IO %hX: Unrecognized revision register:"
- " %hX, Contact author.\n", ioaddr, revision_register);
-#endif
- return -1;
+ DBG( "SMC9000: IO %hX: Unrecognized revision register:"
+ " %hX, Contact author.\n", ioaddr, revision_register );
+ return 0;
}
/* at this point I'll assume that the chip is an SMC9xxx.
* It might be prudent to check a listing of MAC addresses
* against the hardware address, or do some other tests. */
- return 0;
+ return 1;
}
@@ -192,25 +186,23 @@ static void smc9000_transmit(
numPages = length / 256;
if (numPages > 7 ) {
-#ifdef SMC9000_VERBOSE
- printf("SMC9000: Far too big packet error. \n");
-#endif
+ DBG("SMC9000: Far too big packet error. \n");
return;
}
/* dont try more than, say 30 times */
for (i=0;i<30;i++) {
/* now, try to allocate the memory */
- SMC_SELECT_BANK(smc9000_base, 2);
- _outw(MC_ALLOC | numPages, smc9000_base + MMU_CMD);
+ SMC_SELECT_BANK(nic->ioaddr, 2);
+ _outw(MC_ALLOC | numPages, nic->ioaddr + MMU_CMD);
status = 0;
/* wait for the memory allocation to finnish */
for (time_out = currticks() + 5*TICKS_PER_SEC; currticks() < time_out; ) {
- status = inb(smc9000_base + INTERRUPT);
+ status = inb(nic->ioaddr + INTERRUPT);
if ( status & IM_ALLOC_INT ) {
/* acknowledge the interrupt */
- _outb(IM_ALLOC_INT, smc9000_base + INTERRUPT);
+ _outb(IM_ALLOC_INT, nic->ioaddr + INTERRUPT);
break;
}
}
@@ -220,12 +212,12 @@ static void smc9000_transmit(
break;
} else {
printf("SMC9000: Memory allocation timed out, resetting MMU.\n");
- _outw(MC_RESET, smc9000_base + MMU_CMD);
+ _outw(MC_RESET, nic->ioaddr + MMU_CMD);
}
}
/* If I get here, I _know_ there is a packet slot waiting for me */
- packet_no = inb(smc9000_base + PNR_ARR + 1);
+ packet_no = inb(nic->ioaddr + PNR_ARR + 1);
if (packet_no & 0x80) {
/* or isn't there? BAD CHIP! */
printf("SMC9000: Memory allocation failed. \n");
@@ -233,10 +225,10 @@ static void smc9000_transmit(
}
/* we have a packet address, so tell the card to use it */
- _outb(packet_no, smc9000_base + PNR_ARR);
+ _outb(packet_no, nic->ioaddr + PNR_ARR);
/* point to the beginning of the packet */
- _outw(PTR_AUTOINC, smc9000_base + POINTER);
+ _outw(PTR_AUTOINC, nic->ioaddr + POINTER);
#if SMC9000_DEBUG > 2
printf("Trying to xmit packet of length %hX\n", length );
@@ -244,73 +236,71 @@ static void smc9000_transmit(
/* send the packet length ( +6 for status, length and ctl byte )
* and the status word ( set to zeros ) */
- _outw(0, smc9000_base + DATA_1 );
+ _outw(0, nic->ioaddr + DATA_1 );
/* send the packet length ( +6 for status words, length, and ctl) */
- _outb((length+6) & 0xFF, smc9000_base + DATA_1);
- _outb((length+6) >> 8 , smc9000_base + DATA_1);
+ _outb((length+6) & 0xFF, nic->ioaddr + DATA_1);
+ _outb((length+6) >> 8 , nic->ioaddr + DATA_1);
/* Write the contents of the packet */
/* The ethernet header first... */
- outsw(smc9000_base + DATA_1, d, ETH_ALEN >> 1);
- outsw(smc9000_base + DATA_1, nic->node_addr, ETH_ALEN >> 1);
- _outw(htons(t), smc9000_base + DATA_1);
+ outsw(nic->ioaddr + DATA_1, d, ETH_ALEN >> 1);
+ outsw(nic->ioaddr + DATA_1, nic->node_addr, ETH_ALEN >> 1);
+ _outw(htons(t), nic->ioaddr + DATA_1);
/* ... the data ... */
- outsw(smc9000_base + DATA_1 , p, s >> 1);
+ outsw(nic->ioaddr + DATA_1 , p, s >> 1);
/* ... and the last byte, if there is one. */
if ((s & 1) == 0) {
- _outw(0, smc9000_base + DATA_1);
+ _outw(0, nic->ioaddr + DATA_1);
} else {
- _outb(p[s-1], smc9000_base + DATA_1);
- _outb(0x20, smc9000_base + DATA_1);
+ _outb(p[s-1], nic->ioaddr + DATA_1);
+ _outb(0x20, nic->ioaddr + DATA_1);
}
/* and let the chipset deal with it */
- _outw(MC_ENQUEUE , smc9000_base + MMU_CMD);
+ _outw(MC_ENQUEUE , nic->ioaddr + MMU_CMD);
status = 0; time_out = currticks() + 5*TICKS_PER_SEC;
do {
- status = inb(smc9000_base + INTERRUPT);
+ status = inb(nic->ioaddr + INTERRUPT);
if ((status & IM_TX_INT ) != 0) {
word tx_status;
/* ack interrupt */
- _outb(IM_TX_INT, smc9000_base + INTERRUPT);
+ _outb(IM_TX_INT, nic->ioaddr + INTERRUPT);
- packet_no = inw(smc9000_base + FIFO_PORTS);
+ packet_no = inw(nic->ioaddr + FIFO_PORTS);
packet_no &= 0x7F;
/* select this as the packet to read from */
- _outb( packet_no, smc9000_base + PNR_ARR );
+ _outb( packet_no, nic->ioaddr + PNR_ARR );
/* read the first word from this packet */
- _outw( PTR_AUTOINC | PTR_READ, smc9000_base + POINTER );
+ _outw( PTR_AUTOINC | PTR_READ, nic->ioaddr + POINTER );
- tx_status = inw( smc9000_base + DATA_1 );
+ tx_status = inw( nic->ioaddr + DATA_1 );
if (0 == (tx_status & TS_SUCCESS)) {
-#ifdef SMC9000_VERBOSE
- printf("SMC9000: TX FAIL STATUS: %hX \n", tx_status);
-#endif
+ DBG("SMC9000: TX FAIL STATUS: %hX \n", tx_status);
/* re-enable transmit */
- SMC_SELECT_BANK(smc9000_base, 0);
- _outw(inw(smc9000_base + TCR ) | TCR_ENABLE, smc9000_base + TCR );
+ SMC_SELECT_BANK(nic->ioaddr, 0);
+ _outw(inw(nic->ioaddr + TCR ) | TCR_ENABLE, nic->ioaddr + TCR );
}
/* kill the packet */
- SMC_SELECT_BANK(smc9000_base, 2);
- _outw(MC_FREEPKT, smc9000_base + MMU_CMD);
+ SMC_SELECT_BANK(nic->ioaddr, 2);
+ _outw(MC_FREEPKT, nic->ioaddr + MMU_CMD);
return;
}
}while(currticks() < time_out);
- printf("SMC9000: Waring TX timed out, resetting board\n");
- smc_reset(smc9000_base);
+ printf("SMC9000: TX timed out, resetting board\n");
+ smc_reset(nic->ioaddr);
return;
}
@@ -319,22 +309,19 @@ static void smc9000_transmit(
***************************************************************************/
static int smc9000_poll(struct nic *nic, int retrieve)
{
- if(!smc9000_base)
- return 0;
-
- SMC_SELECT_BANK(smc9000_base, 2);
- if (inw(smc9000_base + FIFO_PORTS) & FP_RXEMPTY)
+ SMC_SELECT_BANK(nic->ioaddr, 2);
+ if (inw(nic->ioaddr + FIFO_PORTS) & FP_RXEMPTY)
return 0;
if ( ! retrieve ) return 1;
/* start reading from the start of the packet */
- _outw(PTR_READ | PTR_RCV | PTR_AUTOINC, smc9000_base + POINTER);
+ _outw(PTR_READ | PTR_RCV | PTR_AUTOINC, nic->ioaddr + POINTER);
/* First read the status and check that we're ok */
- if (!(inw(smc9000_base + DATA_1) & RS_ERRORS)) {
+ if (!(inw(nic->ioaddr + DATA_1) & RS_ERRORS)) {
/* Next: read the packet length and mask off the top bits */
- nic->packetlen = (inw(smc9000_base + DATA_1) & 0x07ff);
+ nic->packetlen = (inw(nic->ioaddr + DATA_1) & 0x07ff);
/* the packet length includes the 3 extra words */
nic->packetlen -= 6;
@@ -343,36 +330,33 @@ static int smc9000_poll(struct nic *nic, int retrieve)
(nic->packetlen >> 1), nic->packetlen & 1);
#endif
/* read the packet (and the last "extra" word) */
- insw(smc9000_base + DATA_1, nic->packet, (nic->packetlen+2) >> 1);
+ insw(nic->ioaddr + DATA_1, nic->packet, (nic->packetlen+2) >> 1);
/* is there an odd last byte ? */
if (nic->packet[nic->packetlen+1] & 0x20)
nic->packetlen++;
/* error or good, tell the card to get rid of this packet */
- _outw(MC_RELEASE, smc9000_base + MMU_CMD);
+ _outw(MC_RELEASE, nic->ioaddr + MMU_CMD);
return 1;
}
printf("SMC9000: RX error\n");
/* error or good, tell the card to get rid of this packet */
- _outw(MC_RELEASE, smc9000_base + MMU_CMD);
+ _outw(MC_RELEASE, nic->ioaddr + MMU_CMD);
return 0;
}
-static void smc9000_disable ( struct nic *nic __unused ) {
- if(!smc9000_base)
- return;
-
- smc_reset(smc9000_base);
+static void smc9000_disable ( struct nic *nic ) {
+ smc_reset(nic->ioaddr);
/* no more interrupts for me */
- SMC_SELECT_BANK(smc9000_base, 2);
- _outb( 0, smc9000_base + INT_MASK);
+ SMC_SELECT_BANK(nic->ioaddr, 2);
+ _outb( 0, nic->ioaddr + INT_MASK);
/* and tell the card to stay away from that nasty outside world */
- SMC_SELECT_BANK(smc9000_base, 0);
- _outb( RCR_CLEAR, smc9000_base + RCR );
- _outb( TCR_CLEAR, smc9000_base + TCR );
+ SMC_SELECT_BANK(nic->ioaddr, 0);
+ _outb( RCR_CLEAR, nic->ioaddr + RCR );
+ _outb( TCR_CLEAR, nic->ioaddr + TCR );
}
static void smc9000_irq(struct nic *nic __unused, irq_action_t action __unused)
@@ -387,13 +371,20 @@ static void smc9000_irq(struct nic *nic __unused, irq_action_t action __unused)
}
}
+static struct nic_operations smc9000_operations = {
+ .connect = dummy_connect,
+ .poll = smc9000_poll,
+ .transmit = smc9000_transmit,
+ .irq = smc9000_irq,
+ .disable = smc9000_disable,
+};
+
/**************************************************************************
* ETH_PROBE - Look for an adapter
***************************************************************************/
-static int smc9000_probe(struct dev *dev, unsigned short *probe_addrs)
-{
- struct nic *nic = (struct nic *)dev;
+static int smc9000_probe ( struct dev *dev, struct isa_device *isa ) {
+ struct nic *nic = nic_device ( dev );
unsigned short revision;
int memory;
int media;
@@ -401,63 +392,33 @@ static int smc9000_probe(struct dev *dev, unsigned short *probe_addrs)
const char * if_string;
int i;
- /*
- * the SMC9000 can be at any of the following port addresses. To change,
- * for a slightly different card, you can add it to the array. Keep in
- * mind that the array must end in zero.
- */
- static unsigned short portlist[] = {
-#ifdef SMC9000_SCAN
- SMC9000_SCAN,
-#else
- 0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0,
- 0x300, 0x320, 0x340, 0x360, 0x380, 0x3A0, 0x3C0, 0x3E0,
-#endif
- 0 };
-
- /* if no addresses supplied, fall back on defaults */
- if (probe_addrs == 0 || probe_addrs[0] == 0)
- probe_addrs = portlist;
-
- /* check every ethernet address */
- for (i = 0; probe_addrs[i]; i++) {
- /* check this specific address */
- if (smc_probe(probe_addrs[i]) == 0)
- smc9000_base = probe_addrs[i];
- }
-
- /* couldn't find anything */
- if(0 == smc9000_base)
- goto out;
-
nic->irqno = 0;
- nic->ioaddr = smc9000_base;
+ nic->ioaddr = isa->ioaddr;
/*
* Get the MAC address ( bank 1, regs 4 - 9 )
*/
- SMC_SELECT_BANK(smc9000_base, 1);
+ SMC_SELECT_BANK(nic->ioaddr, 1);
for ( i = 0; i < 6; i += 2 ) {
word address;
- address = inw(smc9000_base + ADDR0 + i);
+ address = inw(nic->ioaddr + ADDR0 + i);
nic->node_addr[i+1] = address >> 8;
nic->node_addr[i] = address & 0xFF;
}
-
/* get the memory information */
- SMC_SELECT_BANK(smc9000_base, 0);
- memory = ( inw(smc9000_base + MCR) >> 9 ) & 0x7; /* multiplier */
- memory *= 256 * (inw(smc9000_base + MIR) & 0xFF);
+ SMC_SELECT_BANK(nic->ioaddr, 0);
+ memory = ( inw(nic->ioaddr + MCR) >> 9 ) & 0x7; /* multiplier */
+ memory *= 256 * (inw(nic->ioaddr + MIR) & 0xFF);
/*
* Now, I want to find out more about the chip. This is sort of
* redundant, but it's cleaner to have it in both, rather than having
* one VERY long probe procedure.
*/
- SMC_SELECT_BANK(smc9000_base, 3);
- revision = inw(smc9000_base + REVISION);
+ SMC_SELECT_BANK(nic->ioaddr, 3);
+ revision = inw(nic->ioaddr + REVISION);
version_string = chip_ids[(revision >> 4) & 0xF];
if (((revision & 0xF0) >> 4 == CHIP_9196) &&
@@ -469,12 +430,12 @@ static int smc9000_probe(struct dev *dev, unsigned short *probe_addrs)
if ( !version_string ) {
/* I shouldn't get here because this call was done before.... */
- goto out;
+ return 0;
}
/* is it using AUI or 10BaseT ? */
- SMC_SELECT_BANK(smc9000_base, 1);
- if (inw(smc9000_base + CONFIG) & CFG_AUI_SELECT)
+ SMC_SELECT_BANK(nic->ioaddr, 1);
+ if (inw(nic->ioaddr + CONFIG) & CFG_AUI_SELECT)
media = 2;
else
media = 1;
@@ -482,67 +443,63 @@ static int smc9000_probe(struct dev *dev, unsigned short *probe_addrs)
if_string = interfaces[media - 1];
/* now, reset the chip, and put it into a known state */
- smc_reset(smc9000_base);
+ smc_reset(nic->ioaddr);
printf("SMC9000 %s\n", smc9000_version);
-#ifdef SMC9000_VERBOSE
- printf("Copyright (C) 1998 Daniel Engstr\x94m\n");
- printf("Copyright (C) 1996 Eric Stahlman\n");
-#endif
+ DBG("Copyright (C) 1998 Daniel Engstr\x94m\n");
+ DBG("Copyright (C) 1996 Eric Stahlman\n");
printf("%s rev:%d I/O port:%hX Interface:%s RAM:%d bytes \n",
version_string, revision & 0xF,
- smc9000_base, if_string, memory );
+ nic->ioaddr, if_string, memory );
/*
* Print the Ethernet address
*/
printf("Ethernet MAC address: %!\n", nic->node_addr);
- SMC_SELECT_BANK(smc9000_base, 0);
+ SMC_SELECT_BANK(nic->ioaddr, 0);
/* see the header file for options in TCR/RCR NORMAL*/
- _outw(TCR_NORMAL, smc9000_base + TCR);
- _outw(RCR_NORMAL, smc9000_base + RCR);
+ _outw(TCR_NORMAL, nic->ioaddr + TCR);
+ _outw(RCR_NORMAL, nic->ioaddr + RCR);
/* Select which interface to use */
- SMC_SELECT_BANK(smc9000_base, 1);
+ SMC_SELECT_BANK(nic->ioaddr, 1);
if ( media == 1 ) {
- _outw( inw( smc9000_base + CONFIG ) & ~CFG_AUI_SELECT,
- smc9000_base + CONFIG );
+ _outw( inw( nic->ioaddr + CONFIG ) & ~CFG_AUI_SELECT,
+ nic->ioaddr + CONFIG );
}
else if ( media == 2 ) {
- _outw( inw( smc9000_base + CONFIG ) | CFG_AUI_SELECT,
- smc9000_base + CONFIG );
+ _outw( inw( nic->ioaddr + CONFIG ) | CFG_AUI_SELECT,
+ nic->ioaddr + CONFIG );
}
-static struct nic_operations smc9000_operations;
-static struct nic_operations smc9000_operations = {
- .connect = dummy_connect,
- .poll = smc9000_poll,
- .transmit = smc9000_transmit,
- .irq = smc9000_irq,
- .disable = smc9000_disable,
-};
+
nic->nic_op = &smc9000_operations;
+ return 1;
+}
- /* Based on PnP ISA map */
- dev->devid.vendor_id = htons(GENERIC_ISAPNP_VENDOR);
- dev->devid.device_id = htons(0x8228);
+/*
+ * The SMC9000 can be at any of the following port addresses. To
+ * change for a slightly different card, you can add it to the array.
+ *
+ */
+static struct isa_probe_addr smc9000_probe_addrs[] = {
+ { 0x200 }, { 0x220 }, { 0x240 }, { 0x260 },
+ { 0x280 }, { 0x2A0 }, { 0x2C0 }, { 0x2E0 },
+ { 0x300 }, { 0x320 }, { 0x340 }, { 0x360 },
+ { 0x380 }, { 0x3A0 }, { 0x3C0 }, { 0x3E0 },
+};
- return 1;
+static struct isa_driver smc9000_driver =
+ISA_DRIVER ( "SMC9000", smc9000_probe_addrs, smc9000_probe_addr,
+ GENERIC_ISAPNP_VENDOR, 0x8228 );
-out:
-#ifdef SMC9000_VERBOSE
- /* printf("No SMC9000 adapters found\n"); */
-#endif
- smc9000_base = 0;
+BOOT_DRIVER ( "SMC9000", find_isa_boot_device, smc9000_driver, smc9000_probe );
- return (0);
-}
+ISA_ROM( "smc9000", "SMC9000" );
-static struct isa_driver smc9000_driver __isa_driver = {
- .type = NIC_DRIVER,
- .name = "SMC9000",
- .probe = smc9000_probe,
- .ioaddrs = 0,
-};
-ISA_ROM("smc9000","SMC9000");
+/*
+ * Local variables:
+ * c-basic-offset: 3
+ * End:
+ */