diff --git a/src/device/pci_bridge.c b/src/device/pci_bridge.c index 7dda00aee..8893acf69 100644 --- a/src/device/pci_bridge.c +++ b/src/device/pci_bridge.c @@ -30,8 +30,10 @@ #include <86box/mem.h> #include <86box/device.h> #include <86box/pci.h> +#include <86box/plat_fallthrough.h> #define PCI_BRIDGE_DEC_21150 0x10110022 +#define PCI_BRIDGE_DEC_21152 0x10110024 #define AGP_BRIDGE_ALI_M5243 0x10b95243 #define AGP_BRIDGE_ALI_M5247 0x10b95247 #define AGP_BRIDGE_INTEL_440LX 0x80867181 @@ -242,12 +244,15 @@ pci_bridge_write(int func, int addr, uint8_t val, void *priv) case 0x40: if (dev->local == PCI_BRIDGE_DEC_21150) val &= 0x32; + else if (dev->local == PCI_BRIDGE_DEC_21152) + val &= 0x12; break; case 0x41: if (AGP_BRIDGE_VIA(dev->local)) val &= 0x7e; - else if (dev->local == PCI_BRIDGE_DEC_21150) + else if ((dev->local == PCI_BRIDGE_DEC_21150) || + (dev->local == PCI_BRIDGE_DEC_21152)) val &= 0x07; break; @@ -257,18 +262,22 @@ pci_bridge_write(int func, int addr, uint8_t val, void *priv) break; case 0x43: - if (dev->local == PCI_BRIDGE_DEC_21150) + if ((dev->local == PCI_BRIDGE_DEC_21150) || + (dev->local == PCI_BRIDGE_DEC_21152)) val &= 0x03; break; case 0x64: - if (dev->local == PCI_BRIDGE_DEC_21150) + if ((dev->local == PCI_BRIDGE_DEC_21150) || + (dev->local == PCI_BRIDGE_DEC_21152)) val &= 0x7e; break; case 0x69: if (dev->local == PCI_BRIDGE_DEC_21150) val &= 0x3f; + else if (dev->local == PCI_BRIDGE_DEC_21152) + val = (val & 0x01) | 0x3e; break; case 0x86: @@ -302,6 +311,15 @@ pci_bridge_write(int func, int addr, uint8_t val, void *priv) break; case 0xe0: + if (AGP_BRIDGE_ALI(dev->local)) { + if (!(dev->ctl & 0x20)) + return; + } else if (dev->local == PCI_BRIDGE_DEC_21152) + val &= 0x03; + else + return; + break; + case 0xe1: if (AGP_BRIDGE_ALI(dev->local)) { if (!(dev->ctl & 0x20)) @@ -399,6 +417,14 @@ pci_bridge_reset(void *priv) /* command and status */ switch (dev->local) { + case PCI_BRIDGE_DEC_21152: + dev->regs[0x08] = 0x03; + dev->regs[0x34] = 0xdc; + dev->regs[0x69] = 0x3e; + dev->regs[0xdc] = 0x01; + dev->regs[0xde] = 0x01; + dev->regs[0xe2] = 0x80; + fallthrough; case PCI_BRIDGE_DEC_21150: dev->regs[0x06] = 0x80; dev->regs[0x07] = 0x02; @@ -490,6 +516,8 @@ pci_bridge_init(const device_t *info) uint8_t interrupt_count; uint8_t interrupt_mask; uint8_t slot_count; + uint8_t dell_slots[3] = { 0x09, 0x0a, 0x0b }; + uint8_t dell_interrupts[3][4] = { { 1, 2, 3, 4 }, { 4, 2, 1, 3 }, { 1, 3, 4, 2 } }; pci_bridge_t *dev = (pci_bridge_t *) calloc(1, sizeof(pci_bridge_t)); @@ -499,7 +527,10 @@ pci_bridge_init(const device_t *info) pci_bridge_reset(dev); - pci_add_bridge(AGP_BRIDGE(dev->local), pci_bridge_read, pci_bridge_write, dev, &dev->slot); + if (info->local == PCI_BRIDGE_DEC_21152) + pci_add_card(PCI_ADD_BRIDGE, pci_bridge_read, pci_bridge_write, dev, &dev->slot); + else + pci_add_bridge(AGP_BRIDGE(dev->local), pci_bridge_read, pci_bridge_write, dev, &dev->slot); interrupt_count = sizeof(interrupts); interrupt_mask = interrupt_count - 1; @@ -513,16 +544,23 @@ pci_bridge_init(const device_t *info) if (info->local == PCI_BRIDGE_DEC_21150) slot_count = 9; /* 9 bus masters */ + else if (info->local == PCI_BRIDGE_DEC_21152) + slot_count = 3; /* 3 bus masters */ else slot_count = 1; /* AGP bridges always have 1 slot */ for (uint8_t i = 0; i < slot_count; i++) { + uint8_t slot = i; + if (info->local == PCI_BRIDGE_DEC_21152) { + slot = dell_slots[i]; + memcpy(interrupts, dell_interrupts[i], 4); + } /* Interrupts for bridge slots are assigned in round-robin: ABCD, BCDA, CDAB and so on. */ pci_bridge_log("PCI Bridge %d: downstream slot %02X interrupts %02X %02X %02X %02X\n", - dev->bus_index, i, interrupts[i & interrupt_mask], + dev->bus_index, slot, interrupts[i & interrupt_mask], interrupts[(i + 1) & interrupt_mask], interrupts[(i + 2) & interrupt_mask], interrupts[(i + 3) & interrupt_mask]); - pci_register_bus_slot(dev->bus_index, i, AGP_BRIDGE(dev->local) ? PCI_CARD_AGP : PCI_CARD_NORMAL, + pci_register_bus_slot(dev->bus_index, slot, AGP_BRIDGE(dev->local) ? PCI_CARD_AGP : PCI_CARD_NORMAL, interrupts[i & interrupt_mask], interrupts[(i + 1) & interrupt_mask], interrupts[(i + 2) & interrupt_mask], @@ -547,6 +585,20 @@ const device_t dec21150_device = { .config = NULL }; +const device_t dec21152_device = { + .name = "DEC 21152 PCI Bridge", + .internal_name = "dec21152", + .flags = DEVICE_PCI, + .local = PCI_BRIDGE_DEC_21152, + .init = pci_bridge_init, + .close = NULL, + .reset = pci_bridge_reset, + .available = NULL, + .speed_changed = NULL, + .force_redraw = NULL, + .config = NULL +}; + /* AGP bridges */ const device_t ali5243_agp_device = { .name = "ALi M5243 AGP Bridge", diff --git a/src/include/86box/pci.h b/src/include/86box/pci.h index 097fcf502..462b4f821 100644 --- a/src/include/86box/pci.h +++ b/src/include/86box/pci.h @@ -286,6 +286,7 @@ extern void pci_bridge_set_ctl(void *priv, uint8_t ctl); #ifdef EMU_DEVICE_H extern const device_t dec21150_device; +extern const device_t dec21152_device; extern const device_t ali5243_agp_device; extern const device_t ali5247_agp_device; diff --git a/src/machine/m_at_slot1.c b/src/machine/m_at_slot1.c index 54cf1a03a..a147d0e13 100644 --- a/src/machine/m_at_slot1.c +++ b/src/machine/m_at_slot1.c @@ -164,18 +164,20 @@ machine_at_optiplex_gxa_init(const machine_t *model) machine_at_common_init_ex(model, 2); pci_init(PCI_CONFIG_TYPE_1); - pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 1, 2, 3, 4); - pci_register_slot(0x0D, PCI_CARD_NORMAL, 2, 1, 3, 4); - pci_register_slot(0x0E, PCI_CARD_NORMAL, 3, 4, 2, 1); - pci_register_slot(0x11, PCI_CARD_NETWORK, 4, 0, 0, 0); pci_register_slot(0x07, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 4); + pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 1, 2, 3, 4); pci_register_slot(0x01, PCI_CARD_AGPBRIDGE, 1, 2, 3, 4); + pci_register_slot(0x11, PCI_CARD_NETWORK, 4, 0, 0, 0); + pci_register_slot(0x0E, PCI_CARD_NORMAL, 3, 4, 2, 1); + pci_register_slot(0x0D, PCI_CARD_NORMAL, 2, 1, 3, 4); + pci_register_slot(0x0F, PCI_CARD_BRIDGE, 1, 2, 3, 4); if (sound_card_current[0] == SOUND_INTERNAL) device_add(machine_get_snd_device(machine)); device_add(&i440lx_device); device_add(&piix4_device); + device_add(&dec21152_device); device_add_params(&pc87307_device, (void *) (PCX730X_PHOENIX_42 | PCX7307_PC87307)); device_add(&intel_flash_bxt_device); spd_register(SPD_TYPE_SDRAM, 0x7, 256); diff --git a/src/machine/m_at_socket7.c b/src/machine/m_at_socket7.c index 3d51e1a06..7d2441e18 100644 --- a/src/machine/m_at_socket7.c +++ b/src/machine/m_at_socket7.c @@ -24,7 +24,6 @@ #include <86box/mem.h> #include <86box/io.h> #include <86box/rom.h> -#include <86box/pci.h> #include <86box/device.h> #include <86box/chipset.h> #include <86box/hdc.h> @@ -45,6 +44,7 @@ #include <86box/scsi_ncr53c8xx.h> #include <86box/thread.h> #include <86box/network.h> +#include <86box/pci.h> int machine_at_acerv35n_init(const machine_t *model) @@ -989,6 +989,7 @@ machine_at_optiplex_gn_init(const machine_t *model) pci_register_slot(0x10, PCI_CARD_VIDEO, 4, 0, 0, 0); /* Trio64V2/GX, temporarily Trio64V2/DX is given */ pci_register_slot(0x11, PCI_CARD_NETWORK, 4, 0, 0, 0); /* 3C905, not yet emulated */ pci_register_slot(0x07, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 4); + pci_register_slot(0x0F, PCI_CARD_BRIDGE, 1, 2, 3, 4); if (gfxcard[0] == VID_INTERNAL) device_add(machine_get_vid_device(machine)); @@ -998,6 +999,7 @@ machine_at_optiplex_gn_init(const machine_t *model) device_add(&i430tx_device); device_add(&piix4_device); + device_add(&dec21152_device); device_add_params(&pc87307_device, (void *) (PCX730X_PHOENIX_42 | PCX7307_PC87307)); device_add(&intel_flash_bxt_device); spd_register(SPD_TYPE_SDRAM, 0x3, 128);