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DECchip 21040 emulation (only tested on Linux)

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This commit is contained in:
Cacodemon345
2024-01-19 16:30:51 +06:00
parent 19af46a8c2
commit 3857fede38
3 changed files with 190 additions and 127 deletions
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1
src/include/86box/net_tulip.h
View File

@@ -1,3 +1,4 @@
extern const device_t dec_tulip_device;
extern const device_t dec_tulip_21140_device;
extern const device_t dec_tulip_21140_vpc_device;
extern const device_t dec_tulip_21040_device;

315
src/network/net_tulip.c
View File

@@ -323,6 +323,9 @@ struct TULIPState {
uint32_t mii_word;
uint32_t mii_bitcnt;
/* 21040 ROM read address. */
uint32_t rom_read_addr;
uint32_t current_rx_desc;
uint32_t current_tx_desc;
@@ -666,6 +669,9 @@ tulip_mii(TULIPState *s)
static uint32_t
tulip_csr9_read(TULIPState *s)
{
if (s->device_info->local == 3) {
return ((uint8_t*)nmc93cxx_eeprom_data(s->eeprom))[s->rom_read_addr++];
}
if (s->csr[9] & CSR9_SR) {
if (nmc93cxx_eeprom_read(s->eeprom)) {
s->csr[9] |= CSR9_SR_DO;
@@ -698,6 +704,10 @@ tulip_read(uint32_t addr, void *opaque)
break;
case CSR(12):
if (s->device_info->local == 3) {
data = 0;
break;
}
/* Fake autocompletion complete until we have PHY emulation */
data = 5 << CSR12_ANS_SHIFT;
break;
@@ -884,8 +894,10 @@ tulip_reset(void *priv)
s->csr[13] = 0xffff0000;
s->csr[14] = 0xffffffff;
s->csr[15] = 0x8ff00000;
s->subsys_id = eeprom_data[1];
s->subsys_ven_id = eeprom_data[0];
if (s->device_info->local != 3) {
s->subsys_id = eeprom_data[1];
s->subsys_ven_id = eeprom_data[0];
}
}
static void
@@ -955,12 +967,16 @@ tulip_write(uint32_t addr, uint32_t data, void *opaque)
break;
case CSR(9):
tulip_csr9_write(s, s->csr[9], data);
/* don't clear MII read data */
s->csr[9] &= CSR9_MDI;
s->csr[9] |= (data & ~CSR9_MDI);
tulip_mii(s);
s->old_csr9 = s->csr[9];
if (s->device_info->local != 3) {
tulip_csr9_write(s, s->csr[9], data);
/* don't clear MII read data */
s->csr[9] &= CSR9_MDI;
s->csr[9] |= (data & ~CSR9_MDI);
tulip_mii(s);
s->old_csr9 = s->csr[9];
} else {
s->rom_read_addr = 0;
}
break;
case CSR(10):
@@ -978,6 +994,11 @@ tulip_write(uint32_t addr, uint32_t data, void *opaque)
case CSR(13):
s->csr[13] = data;
if (s->device_info->local == 3 && (data & 0x4)) {
s->csr[13] = 0x8f01;
s->csr[14] = 0xfffd;
s->csr[15] = 0;
}
break;
case CSR(14):
@@ -1141,7 +1162,9 @@ tulip_pci_read(UNUSED(int func), int addr, void *priv)
ret = 0x10;
break;
case 0x02:
if (s->device_info->local)
if (s->device_info->local == 3)
ret = 0x02;
else if (s->device_info->local)
ret = 0x09;
else
ret = 0x19;
@@ -1229,6 +1252,7 @@ tulip_pci_read(UNUSED(int func), int addr, void *priv)
break;
case 0x3E:
case 0x3F:
case 0x41:
ret = s->pci_conf[addr & 0xff];
break;
}
@@ -1319,6 +1343,7 @@ tulip_pci_write(UNUSED(int func), int addr, uint8_t val, void *priv)
return;
case 0x3E:
case 0x3F:
case 0x41:
s->pci_conf[addr & 0xff] = val;
return;
}
@@ -1336,7 +1361,7 @@ nic_init(const device_t *info)
if (!s)
return NULL;
if (info->local) {
if (info->local && info->local != 3) {
s->bios_addr = 0xD0000;
s->has_bios = device_get_config_int("bios");
} else {
@@ -1349,139 +1374,161 @@ nic_init(const device_t *info)
s->device_info = info;
/*Subsystem Vendor ID*/
s->eeprom_data[0] = info->local ? 0x25 : 0x11;
s->eeprom_data[1] = 0x10;
if (info->local != 3) {
/*Subsystem Vendor ID*/
s->eeprom_data[0] = info->local ? 0x25 : 0x11;
s->eeprom_data[1] = 0x10;
/*Subsystem ID*/
s->eeprom_data[2] = info->local ? 0x10 : 0x0a;
s->eeprom_data[3] = info->local ? 0x03 : 0x50;
/*Subsystem ID*/
s->eeprom_data[2] = info->local ? 0x10 : 0x0a;
s->eeprom_data[3] = info->local ? 0x03 : 0x50;
/*Cardbus CIS Pointer low*/
s->eeprom_data[4] = 0x00;
s->eeprom_data[5] = 0x00;
/*Cardbus CIS Pointer low*/
s->eeprom_data[4] = 0x00;
s->eeprom_data[5] = 0x00;
/*Cardbus CIS Pointer high*/
s->eeprom_data[6] = 0x00;
s->eeprom_data[7] = 0x00;
/*Cardbus CIS Pointer high*/
s->eeprom_data[6] = 0x00;
s->eeprom_data[7] = 0x00;
/*ID Reserved1*/
for (int i = 0; i < 7; i++)
s->eeprom_data[8 + i] = 0x00;
/*ID Reserved1*/
for (int i = 0; i < 7; i++)
s->eeprom_data[8 + i] = 0x00;
/*MiscHwOptions*/
s->eeprom_data[15] = 0x00;
/*MiscHwOptions*/
s->eeprom_data[15] = 0x00;
/*ID_BLOCK_CRC*/
tulip_idblock_crc((uint16_t *) s->eeprom_data);
/*ID_BLOCK_CRC*/
tulip_idblock_crc((uint16_t *) s->eeprom_data);
/*Func0_HwOptions*/
s->eeprom_data[17] = 0x00;
/*Func0_HwOptions*/
s->eeprom_data[17] = 0x00;
/*SROM Format Version 1, compatible with older guests*/
s->eeprom_data[18] = 0x01;
/*SROM Format Version 1, compatible with older guests*/
s->eeprom_data[18] = 0x01;
/*Controller Count*/
s->eeprom_data[19] = 0x01;
/*Controller Count*/
s->eeprom_data[19] = 0x01;
/*DEC OID*/
s->eeprom_data[20] = 0x00;
s->eeprom_data[21] = 0x00;
s->eeprom_data[22] = 0xf8;
if (info->local == 2) {
/* Microsoft VPC DEC Tulip. */
/*DEC OID*/
s->eeprom_data[20] = 0x00;
s->eeprom_data[21] = 0x03;
s->eeprom_data[22] = 0x0f;
}
s->eeprom_data[21] = 0x00;
s->eeprom_data[22] = 0xf8;
/* See if we have a local MAC address configured. */
mac = device_get_config_mac("mac", -1);
if (info->local == 2) {
/* Microsoft VPC DEC Tulip. */
s->eeprom_data[20] = 0x00;
s->eeprom_data[21] = 0x03;
s->eeprom_data[22] = 0x0f;
}
/* Set up our BIA. */
if (mac & 0xff000000) {
/* Generate new local MAC. */
s->eeprom_data[23] = random_generate();
s->eeprom_data[24] = random_generate();
s->eeprom_data[25] = random_generate();
mac = (((int) s->eeprom_data[23]) << 16);
mac |= (((int) s->eeprom_data[24]) << 8);
mac |= ((int) s->eeprom_data[25]);
device_set_config_mac("mac", mac);
/* See if we have a local MAC address configured. */
mac = device_get_config_mac("mac", -1);
/* Set up our BIA. */
if (mac & 0xff000000) {
/* Generate new local MAC. */
s->eeprom_data[23] = random_generate();
s->eeprom_data[24] = random_generate();
s->eeprom_data[25] = random_generate();
mac = (((int) s->eeprom_data[23]) << 16);
mac |= (((int) s->eeprom_data[24]) << 8);
mac |= ((int) s->eeprom_data[25]);
device_set_config_mac("mac", mac);
} else {
s->eeprom_data[23] = (mac >> 16) & 0xff;
s->eeprom_data[24] = (mac >> 8) & 0xff;
s->eeprom_data[25] = (mac & 0xff);
}
/*Controller_0 Device_Number*/
s->eeprom_data[26] = 0x00;
/*Controller_0 Info Leaf_Offset*/
s->eeprom_data[27] = 0x1e;
s->eeprom_data[28] = 0x00;
/*Selected Connection Type, Powerup AutoSense and Dynamic AutoSense if the board supports it*/
s->eeprom_data[30] = 0x00;
s->eeprom_data[31] = 0x08;
if (info->local) {
/*General Purpose Control*/
s->eeprom_data[32] = 0xff;
/*Block Count*/
s->eeprom_data[33] = 0x01;
/*Extended Format (first part)*/
/*Length (0:6) and Format Indicator (7)*/
s->eeprom_data[34] = 0x81;
/*Block Type (first part)*/
s->eeprom_data[35] = 0x01;
/*Extended Format (second part) - Block Type 0 for 21140*/
/*Length (0:6) and Format Indicator (7)*/
s->eeprom_data[36] = 0x85;
/*Block Type (second part)*/
s->eeprom_data[37] = 0x00;
/*Media Code (0:5), EXT (6), Reserved (7)*/
s->eeprom_data[38] = 0x01;
/*General Purpose Data*/
s->eeprom_data[39] = 0x00;
/*Command*/
s->eeprom_data[40] = 0x00;
s->eeprom_data[41] = 0x00;
} else {
/*Block Count*/
s->eeprom_data[32] = 0x01;
/*Extended Format - Block Type 2 for 21142/21143*/
/*Length (0:6) and Format Indicator (7)*/
s->eeprom_data[33] = 0x86;
/*Block Type*/
s->eeprom_data[34] = 0x02;
/*Media Code (0:5), EXT (6), Reserved (7)*/
s->eeprom_data[35] = 0x01;
/*General Purpose Control*/
s->eeprom_data[36] = 0xff;
s->eeprom_data[37] = 0xff;
/*General Purpose Data*/
s->eeprom_data[38] = 0x00;
s->eeprom_data[39] = 0x00;
}
s->eeprom_data[126] = tulip_srom_crc(s->eeprom_data) & 0xff;
s->eeprom_data[127] = tulip_srom_crc(s->eeprom_data) >> 8;
} else {
s->eeprom_data[23] = (mac >> 16) & 0xff;
s->eeprom_data[24] = (mac >> 8) & 0xff;
s->eeprom_data[25] = (mac & 0xff);
/* 21040 is supposed to only have MAC address in its serial ROM if Linux is correct. */
memset(s->eeprom_data, 0, sizeof(s->eeprom_data));
s->eeprom_data[0] = 0x00;
s->eeprom_data[1] = 0x00;
s->eeprom_data[2] = 0xF8;
if (mac & 0xff000000) {
/* Generate new local MAC. */
s->eeprom_data[3] = random_generate();
s->eeprom_data[4] = random_generate();
s->eeprom_data[5] = random_generate();
mac = (((int) s->eeprom_data[3]) << 16);
mac |= (((int) s->eeprom_data[4]) << 8);
mac |= ((int) s->eeprom_data[5]);
device_set_config_mac("mac", mac);
} else {
s->eeprom_data[3] = (mac >> 16) & 0xff;
s->eeprom_data[4] = (mac >> 8) & 0xff;
s->eeprom_data[5] = (mac & 0xff);
}
}
/*Controller_0 Device_Number*/
s->eeprom_data[26] = 0x00;
/*Controller_0 Info Leaf_Offset*/
s->eeprom_data[27] = 0x1e;
s->eeprom_data[28] = 0x00;
/*Selected Connection Type, Powerup AutoSense and Dynamic AutoSense if the board supports it*/
s->eeprom_data[30] = 0x00;
s->eeprom_data[31] = 0x08;
if (info->local) {
/*General Purpose Control*/
s->eeprom_data[32] = 0xff;
/*Block Count*/
s->eeprom_data[33] = 0x01;
/*Extended Format (first part)*/
/*Length (0:6) and Format Indicator (7)*/
s->eeprom_data[34] = 0x81;
/*Block Type (first part)*/
s->eeprom_data[35] = 0x01;
/*Extended Format (second part) - Block Type 0 for 21140*/
/*Length (0:6) and Format Indicator (7)*/
s->eeprom_data[36] = 0x85;
/*Block Type (second part)*/
s->eeprom_data[37] = 0x00;
/*Media Code (0:5), EXT (6), Reserved (7)*/
s->eeprom_data[38] = 0x01;
/*General Purpose Data*/
s->eeprom_data[39] = 0x00;
/*Command*/
s->eeprom_data[40] = 0x00;
s->eeprom_data[41] = 0x00;
} else {
/*Block Count*/
s->eeprom_data[32] = 0x01;
/*Extended Format - Block Type 2 for 21142/21143*/
/*Length (0:6) and Format Indicator (7)*/
s->eeprom_data[33] = 0x86;
/*Block Type*/
s->eeprom_data[34] = 0x02;
/*Media Code (0:5), EXT (6), Reserved (7)*/
s->eeprom_data[35] = 0x01;
/*General Purpose Control*/
s->eeprom_data[36] = 0xff;
s->eeprom_data[37] = 0xff;
/*General Purpose Data*/
s->eeprom_data[38] = 0x00;
s->eeprom_data[39] = 0x00;
}
s->eeprom_data[126] = tulip_srom_crc(s->eeprom_data) & 0xff;
s->eeprom_data[127] = tulip_srom_crc(s->eeprom_data) >> 8;
params.nwords = 64;
params.default_content = (uint16_t *) s->eeprom_data;
params.filename = filename;
@@ -1592,3 +1639,17 @@ const device_t dec_tulip_21140_vpc_device = {
.force_redraw = NULL,
.config = dec_tulip_21140_config
};
const device_t dec_tulip_21040_device = {
.name = "DEC DE-435 EtherWorks Turbo (DECchip 21040 \"Tulip\")",
.internal_name = "dec_21040_tulip",
.flags = DEVICE_PCI,
.local = 3,
.init = nic_init,
.close = nic_close,
.reset = tulip_reset,
{ .available = NULL },
.speed_changed = NULL,
.force_redraw = NULL,
.config = dec_tulip_21143_config
};

1
src/network/network.c
View File

@@ -136,6 +136,7 @@ static const device_t *net_cards[] = {
&rtl8139c_plus_device,
&dec_tulip_21140_device,
&dec_tulip_21140_vpc_device,
&dec_tulip_21040_device,
&pcnet_am79c960_vlb_device,
NULL
};