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https://github.com/dingusdev/dingusppc.git
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bandit: clean up PCI device connection.
This commit is contained in:
Maxim Poliakovski
parent
699b62373a
commit
289ddf10b7
@ -1,6 +1,6 @@
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/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-22 divingkatae and maximum
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Copyright (C) 2018-23 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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@ -19,7 +19,7 @@ You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** Bandit ARBus-to-PCI Bridge emulation. */
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/** Bandit/Chaos ARBus-to-PCI Bridge emulation. */
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#include <devices/common/pci/bandit.h>
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#include <devices/deviceregistry.h>
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@ -60,19 +60,22 @@ Bandit::Bandit(int bridge_num, std::string name, int dev_id, int rev)
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// base_addr + 0x1000000 --> pass-through memory space (not included below)
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mem_ctrl->add_mmio_region(base_addr, 0x01000000, this);
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std::string banditpcitname = "Bandit1PCI";
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attach_pci_device(banditpcitname, 1);
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// connnect Bandit PCI device
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this->my_pci_device = unique_ptr<BanditPciDevice>(
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new BanditPciDevice(bridge_num, name, dev_id, rev)
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);
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this->pci_register_device(1, this->my_pci_device.get());
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}
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BanditPCI::BanditPCI(int bridge_num, std::string name)
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BanditPciDevice::BanditPciDevice(int bridge_num, std::string name, int dev_id, int rev)
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: PCIDevice(name)
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{
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supports_types(HWCompType::PCI_DEV);
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// prepare the PCI config header
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this->vendor_id = PCI_VENDOR_APPLE;
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this->device_id = 0x0001;
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this->class_rev = 0x06000003;
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this->device_id = dev_id;
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this->class_rev = 0x06000000 | (rev & 0xFFU);
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this->cache_ln_sz = 8;
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this->command = 0x16;
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@ -91,7 +94,7 @@ BanditPCI::BanditPCI(int bridge_num, std::string name)
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this->rd_hold_off_cnt = 8;
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}
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uint32_t BanditPCI::pci_cfg_read(uint32_t reg_offs, AccessDetails &details)
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uint32_t BanditPciDevice::pci_cfg_read(uint32_t reg_offs, AccessDetails &details)
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{
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if (reg_offs < 64) {
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return PCIDevice::pci_cfg_read(reg_offs, details);
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@ -109,7 +112,7 @@ uint32_t BanditPCI::pci_cfg_read(uint32_t reg_offs, AccessDetails &details)
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return 0;
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}
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void BanditPCI::pci_cfg_write(uint32_t reg_offs, uint32_t value, AccessDetails &details)
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void BanditPciDevice::pci_cfg_write(uint32_t reg_offs, uint32_t value, AccessDetails &details)
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{
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if (reg_offs < 64) {
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PCIDevice::pci_cfg_write(reg_offs, value, details);
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@ -233,7 +236,7 @@ void BanditHost::write(uint32_t rgn_start, uint32_t offset, uint32_t value, int
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}
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}
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void BanditPCI::verbose_address_space()
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void BanditPciDevice::verbose_address_space()
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{
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uint32_t mask;
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int bit_pos;
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@ -289,11 +292,6 @@ static const DeviceDescription Chaos_Descriptor = {
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Chaos::create, {}, {}
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};
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static const DeviceDescription Bandit1PCI_Descriptor = {
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BanditPCI::create_first, {}, {}
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};
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REGISTER_DEVICE(Bandit1 , Bandit1_Descriptor);
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REGISTER_DEVICE(Bandit1PCI, Bandit1PCI_Descriptor);
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REGISTER_DEVICE(PsxPci1 , PsxPci1_Descriptor);
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REGISTER_DEVICE(Chaos , Chaos_Descriptor);
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@ -1,6 +1,6 @@
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/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-22 divingkatae and maximum
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Copyright (C) 2018-23 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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@ -19,10 +19,19 @@ You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** Bandit ARBus-to-PCI bridge definitions.
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/** Bandit/Chaos ARBus-to-PCI bridge definitions.
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The Bandit ASIC is a custom ARBus-to-PCI bridge used in the second
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generation of the Power Macintosh computer equipped with the PCI bus.
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Bandit is a custom ARBus-to-PCI bridge used in the second generation
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of the Power Macintosh computer equipped with the PCI bus.
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Chaos is a custom ARBus-to-PCI bridge that provides a specialized
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PCI-like bus for video called VCI. This 64-bit bus runs at the same
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frequency as the CPU bus (40-50 MHz) and connects video input/output
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devices with the CPU bus.
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Chaos seems to be a Bandit variant without PCI configuration space.
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It's assumed to be present in some PCI Power Macintosh models of the
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first generation.
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*/
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#ifndef BANDIT_PCI_H
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@ -36,7 +45,6 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
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#include <cinttypes>
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#include <memory>
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#include <string>
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#include <unordered_map>
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#define BANDIT_DEV (11) // Bandit's own device number
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#define BANDIT_CAR_TYPE (1 << 0) // Bandit config address type bit
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@ -52,6 +60,9 @@ enum {
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/** checks if one bit is set at time, return 0 if not */
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#define SINGLE_BIT_SET(val) ((val) && !((val) & ((val)-1)))
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/*
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Common functionality for Bandit/Chaos PCI host bridge.
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*/
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class BanditHost : public PCIHost, public MMIODevice {
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public:
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void cfg_setup(uint32_t offset, int size, int &bus_num, int &dev_num, int &fun_num, uint8_t ®_offs, AccessDetails &details, PCIDevice *&device);
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@ -64,6 +75,30 @@ protected:
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uint32_t config_addr;
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};
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/*
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PCI device for Bandit (but not for Chaos).
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*/
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class BanditPciDevice : public PCIDevice {
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public:
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BanditPciDevice(int bridge_num, std::string name, int dev_id, int rev);
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~BanditPciDevice() = default;
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// PCIDevice methods
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uint32_t pci_cfg_read(uint32_t reg_offs, AccessDetails &details);
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void pci_cfg_write(uint32_t reg_offs, uint32_t value, AccessDetails &details);
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protected:
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void verbose_address_space();
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private:
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uint32_t addr_mask;
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uint32_t mode_ctrl; // controls various chip modes/features
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uint32_t rd_hold_off_cnt;
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};
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/*
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Bandit HLE emulation class.
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*/
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class Bandit : public BanditHost {
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public:
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Bandit(int bridge_num, std::string name, int dev_id=1, int rev=3);
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@ -78,35 +113,12 @@ public:
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};
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private:
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uint32_t base_addr;
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uint32_t base_addr;
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unique_ptr<BanditPciDevice> my_pci_device;
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};
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class BanditPCI : public PCIDevice {
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public:
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BanditPCI(int bridge_num, std::string name);
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~BanditPCI() = default;
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static std::unique_ptr<HWComponent> create_first() {
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return std::unique_ptr<BanditPCI>(new BanditPCI(1, "BanditPCI"));
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};
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// PCIDevice methods
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uint32_t pci_cfg_read(uint32_t reg_offs, AccessDetails &details);
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void pci_cfg_write(uint32_t reg_offs, uint32_t value, AccessDetails &details);
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protected:
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void verbose_address_space();
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private:
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uint32_t addr_mask;
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uint32_t mode_ctrl; // controls various chip modes/features
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uint32_t rd_hold_off_cnt;
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};
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/** Chaos is a custom ARBus-to-PCI bridge that provides a specialized
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PCI-like bus for video called VCI. This 64-bit bus runs at the same
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frequency as the CPU bus (40-50 MHz) and provides an interface
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between video input/output devices and the CPU bus.
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/**
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Chaos HLE emulation class.
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*/
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class Chaos : public BanditHost {
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public:
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