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phunix/minix/drivers/net/dp8390/rtl8029.c
David van Moolenbroek f7df02e747 libnetdriver: rewrite 
This is a driver-breaking update to the netdriver library, which is
used by all network drivers.  The aim of this change is to make the
library more compatible with NetBSD, and in particular with various
features that are expected to be supported by the NetBSD userland.
The main changes made by this patch are the following:

- each network driver now has a NetBSD-style short device name;
- drivers are not expected to receive packets right after startup;
- extended support for receipt modes, including multicast lists;
- support for multiple parallel send, receive requests;
- embedding of I/O vectors in send and receive requests;
- support for capabilities, including checksum offloading;
- support for reporting link status updates to the TCP/IP stack;
- support for setting and retrieving media status;
- support for changing the hardware (MAC) address;
- support for NetBSD interface flags IFF_DEBUG, IFF_LINK[0-2];
- support for NetBSD error statistics;
- support for regular time-based ("tick") callbacks.

IMPORTANT: this patch applies a minimal update to the existing drivers
in order to make them work at all with the new netdriver library.  It
however does *not* change all drivers to make use of the new features.
In fact, strictly speaking, all drivers are now violating requirements
imposed by the new library in one way or another, most notably by
enabling packet receipt when starting the driver.  Changing all the
drivers to be compliant, and to support the newly added options, is
left to future patches.  The existing drivers should currently *not*
be taken as examples of how to implement a new network driver!

With that said, a few drivers have already been changed to make use of
some of the new features: fxp, e1000, rtl8139, and rtl8169 now report
link and media status, and the last three of those now support setting
the hardware MAC address on the fly.  In addition, dp8390 has been
changed to default to PCI autoconfiguration if no configuration is
specified through environment variables.

Change-Id: I4b3ea9c0b9bc25d5b0609c6ff256fb0db71cdc42
2017-04-30 13:15:28 +00:00

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/*
rtl8029.c
Initialization of PCI DP8390-based ethernet cards
Created: April 2000 by Philip Homburg <philip@f-mnx.phicoh.com>
*/
#include <minix/drivers.h>
#include <minix/netdriver.h>
#include <stdlib.h>
#include <sys/types.h>
#include <machine/pci.h>
#include "assert.h"
#include "local.h"
#include "dp8390.h"
#include "rtl8029.h"
static void rtl_init(struct dpeth *dep);
#if 0
static u16_t get_ee_word(dpeth_t *dep, int a);
static void ee_wen(dpeth_t *dep);
static void set_ee_word(dpeth_t *dep, int a, u16_t w);
static void ee_wds(dpeth_t *dep);
#endif
int rtl_probe(dep, skip)
struct dpeth *dep;
int skip;
{
int r, devind;
u16_t vid, did;
u32_t bar;
u8_t ilr;
const char *dname;
pci_init();
r= pci_first_dev(&devind, &vid, &did);
if (r == 0)
return 0;
while (skip--)
{
r= pci_next_dev(&devind, &vid, &did);
if (!r)
return 0;
}
dname= pci_dev_name(vid, did);
if (!dname)
dname= "unknown device";
printf("%s: %s (%04X/%04X) at %s\n",
netdriver_name(), dname, vid, did, pci_slot_name(devind));
if(pci_reserve_ok(devind) != OK)
return 0;
/* printf("cr = 0x%x\n", pci_attr_r16(devind, PCI_CR)); */
bar= pci_attr_r32(devind, PCI_BAR) & 0xffffffe0;
if (bar < 0x400)
panic("base address is not properly configured");
dep->de_base_port= bar;
ilr= pci_attr_r8(devind, PCI_ILR);
dep->de_irq= ilr;
if (debug)
{
printf("%s: using I/O address 0x%lx, IRQ %d\n",
netdriver_name(), (unsigned long)bar, ilr);
}
dep->de_initf= rtl_init;
return TRUE;
}
static void rtl_init(dep)
dpeth_t *dep;
{
u8_t reg_a, reg_b, cr, config0, config2, config3;
#if DEBUG
printf("rtl_init called\n");
#endif
ne_init(dep);
/* ID */
outb_reg0(dep, DP_CR, CR_PS_P0);
reg_a = inb_reg0(dep, DP_DUM1);
reg_b = inb_reg0(dep, DP_DUM2);
#if DEBUG
printf("rtl_init: '%c', '%c'\n", reg_a, reg_b);
#endif
outb_reg0(dep, DP_CR, CR_PS_P3);
config0 = inb_reg3(dep, 3);
config2 = inb_reg3(dep, 5);
config3 = inb_reg3(dep, 6);
outb_reg0(dep, DP_CR, CR_PS_P0);
#if DEBUG
printf("rtl_init: config 0/2/3 = %x/%x/%x\n",
config0, config2, config3);
#endif
if (getenv("RTL8029FD"))
{
printf("rtl_init: setting full-duplex mode\n");
outb_reg0(dep, DP_CR, CR_PS_P3);
cr= inb_reg3(dep, 1);
outb_reg3(dep, 1, cr | 0xc0);
outb_reg3(dep, 6, config3 | 0x40);
config3 = inb_reg3(dep, 6);
config2= inb_reg3(dep, 5);
outb_reg3(dep, 5, config2 | 0x20);
config2= inb_reg3(dep, 5);
outb_reg3(dep, 1, cr);
outb_reg0(dep, DP_CR, CR_PS_P0);
#if DEBUG
printf("rtl_init: config 2 = %x\n", config2);
printf("rtl_init: config 3 = %x\n", config3);
#endif
}
#if 0
for (i= 0; i<64; i++)
printf("%x ", get_ee_word(dep, i));
printf("\n");
#endif
#if 0
if (getenv("RTL8029MN"))
{
ee_wen(dep);
set_ee_word(dep, 0x78/2, 0x10ec);
set_ee_word(dep, 0x7A/2, 0x8029);
set_ee_word(dep, 0x7C/2, 0x10ec);
set_ee_word(dep, 0x7E/2, 0x8029);
ee_wds(dep);
assert(get_ee_word(dep, 0x78/2) == 0x10ec);
assert(get_ee_word(dep, 0x7A/2) == 0x8029);
assert(get_ee_word(dep, 0x7C/2) == 0x10ec);
assert(get_ee_word(dep, 0x7E/2) == 0x8029);
}
if (getenv("RTL8029XXX"))
{
ee_wen(dep);
set_ee_word(dep, 0x76/2, 0x8029);
ee_wds(dep);
assert(get_ee_word(dep, 0x76/2) == 0x8029);
}
#endif
}
#if 0
static u16_t get_ee_word(dep, a)
dpeth_t *dep;
int a;
{
int b, i, cmd;
u16_t w;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x180 | (a & 0x3f); /* 1 1 0 a5 a4 a3 a2 a1 a0 */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
w= 0;
for (i= 0; i<16; i++)
{
w <<= 1;
/* Data is shifted out on the rising edge. Read at the
* falling edge.
*/
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4);
outb_reg3(dep, 1, 0x80 | 0x8 | b);
b= inb_reg3(dep, 1);
w |= (b & 1);
}
outb_reg3(dep, 1, 0x80); /* drop CS */
outb_reg3(dep, 1, 0x00); /* back to normal */
outb_reg0(dep, DP_CR, CR_PS_P0); /* back to bank 0 */
return w;
}
static void ee_wen(dep)
dpeth_t *dep;
{
int b, i, cmd;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x130; /* 1 0 0 1 1 x x x x */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
outb_reg3(dep, 1, 0x80); /* Drop CS */
micro_delay(1); /* Is this required? */
}
static void set_ee_word(dep, a, w)
dpeth_t *dep;
int a;
u16_t w;
{
int b, i, cmd;
outb_reg3(dep, 1, 0x80 | 0x8); /* Set CS */
cmd= 0x140 | (a & 0x3f); /* 1 0 1 a5 a4 a3 a2 a1 a0 */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
for (i= 15; i >= 0; i--)
{
b= (w & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of data */
outb_reg3(dep, 1, 0x80); /* Drop CS */
micro_delay(1); /* Is this required? */
outb_reg3(dep, 1, 0x80 | 0x8); /* Set CS */
for (i= 0; i<10000; i++)
{
if (inb_reg3(dep, 1) & 1)
break;
micro_delay(1);
}
if (!(inb_reg3(dep, 1) & 1))
panic("set_ee_word: device remains busy");
}
static void ee_wds(dep)
dpeth_t *dep;
{
int b, i, cmd;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x100; /* 1 0 0 0 0 x x x x */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
outb_reg3(dep, 1, 0x80); /* Drop CS */
outb_reg3(dep, 1, 0x00); /* back to normal */
outb_reg0(dep, DP_CR, CR_PS_P0); /* back to bank 0 */
}
#endif
/*
* $PchId: rtl8029.c,v 1.7 2004/08/03 12:16:58 philip Exp $
*/
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