// license: BSD-3-Clause // copyright-holders: Angelo Salese /************************************************************************************************** SiS 7018 Audio device (AC97 compliant) TODO: - Stub interface, to be improved; - Reportedly based off Trident 4DWave technology, some registers effectively matches up; **************************************************************************************************/ #include "emu.h" #include "sis7018_audio.h" #define LOG_IO (1U << 1) // log PCI register accesses #define LOG_TODO (1U << 2) // log unimplemented registers #define LOG_MAP (1U << 3) // log full remaps #define LOG_PMC (1U << 4) // log PMC access #define VERBOSE (LOG_GENERAL | LOG_IO | LOG_TODO | LOG_MAP | LOG_PMC) //#define LOG_OUTPUT_FUNC osd_printf_warning #include "logmacro.h" #define LOGIO(...) LOGMASKED(LOG_IO, __VA_ARGS__) #define LOGMAP(...) LOGMASKED(LOG_MAP, __VA_ARGS__) #define LOGTODO(...) LOGMASKED(LOG_TODO, __VA_ARGS__) #define LOGPMC(...) LOGMASKED(LOG_PMC, __VA_ARGS__) DEFINE_DEVICE_TYPE(SIS7018_AUDIO, sis7018_audio_device, "sis7018_audio", "SiS 7018 Audio AC97") sis7018_audio_device::sis7018_audio_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : pci_device(mconfig, SIS7018_AUDIO, tag, owner, clock) , m_joy(*this, "pc_joy") { // 0x040100 - Multimedia device, audio device (vendor specific i/f) // 0x01 - Rev 1 set_ids(0x10397018, 0x01, 0x040100, 0x00); } void sis7018_audio_device::device_add_mconfig(machine_config &config) { PC_JOY(config, m_joy); // ... } // NOTE: prefer using Trident naming if a register is there too. void sis7018_audio_device::config_map(address_map &map) { pci_device::config_map(map); map(0x48, 0xe3).rw(FUNC(sis7018_audio_device::unmap_log_r), FUNC(sis7018_audio_device::unmap_log_w)); map(0x44, 0x44).lrw8( NAME([this] (offs_t offset) { return m_legacy_io_base; }), NAME([this] (offs_t offset, u8 data) { LOGIO("PCI $44: Legacy I/O base %02x\n", data); m_legacy_io_base = data; remap_cb(); }) ); // 0x45 Legacy DMA Decoding // 0x46 PM_CFG Power Management Config (Legacy Control on Trident) // PMC capability identifier map(0xdc, 0xdf).r(FUNC(sis7018_audio_device::pmc_id_r)); // map(0xe0, 0xe3).r(FUNC(sis7018_audio_device::pmc_status_r), FUNC(sis7018_audio_device::pmc_control_w)); } u8 sis7018_audio_device::capptr_r() { LOGIO("AUDIO Read capptr_r [$34]\n"); return 0xdc; } // TODO: move to specific interface u32 sis7018_audio_device::pmc_id_r() { LOGPMC("Read PMC ID [$dc]\n"); // bits 31-16 PPMI v1.0, D1 / D2 supported, no PCI clock for PME# // bits 15-8 0x00 no NEXT_PTR (NULL terminates here) // bits 7-0 PM_CAP_ID (0x01 for PMC) return 0xe6110001; } void sis7018_audio_device::memory_map(address_map &map) { } void sis7018_audio_device::io_map(address_map &map) { } void sis7018_audio_device::device_start() { pci_device::device_start(); add_map(256, M_IO, FUNC(sis7018_audio_device::io_map)); // not explicitly stated, assume 4096 size from the MEM decoding add_map(4096, M_MEM, FUNC(sis7018_audio_device::memory_map)); // TODO: PCI regs 0x3e/0x3f max_lat = 0x18, min_gnt = 0x02 } void sis7018_audio_device::device_reset() { pci_device::device_reset(); command = 0x0000; status = 0x0000; // INTA# intr_pin = 1; // TODO: can be written to with $46=1 subsystem_id = 0x10397018; m_legacy_io_base = 0xe2; // 0xf0 on Trident remap_cb(); } void sis7018_audio_device::map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space, uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space) { // if(BIT(m_legacy_io_base, 7)) // const u16 mpu401base_io_addr = 0x300 | (BIT(m_legacy_io_base, 6) ? 0x00 : 0x30); if (BIT(m_legacy_io_base, 5)) { const u16 gamebase_io_addr = 0x200 | (BIT(m_legacy_io_base, 4) << 3); io_space->install_device(gamebase_io_addr, gamebase_io_addr | 0x7, *this, &sis7018_audio_device::gameport_map); } // if(BIT(m_legacy_io_base, 3)) // const u16 adlibbase_io_addr = 0x388 | (BIT(m_legacy_io_base, 2) << 2); // if(BIT(m_legacy_io_base, 1)) // const u16 sbbase_io_addr = 0x200 | (BIT(m_legacy_io_base, 0) ? 0x20 : 0x40); } // 200h / 208h void sis7018_audio_device::gameport_map(address_map &map) { map(0x00, 0x07).rw(m_joy, FUNC(pc_joy_device::joy_port_r), FUNC(pc_joy_device::joy_port_w)); } /* * Debugging */ u8 sis7018_audio_device::unmap_log_r(offs_t offset) { LOGTODO("AUDIO Unemulated [%02x] R\n", offset + 0x48); return 0; } void sis7018_audio_device::unmap_log_w(offs_t offset, u8 data) { LOGTODO("AUDIO Unemulated [%02x] %02x W\n", offset + 0x48, data); }