/* ES40 emulator. * Copyright (C) 2007-2008 by the ES40 Emulator Project * * WWW : http://www.es40.org * E-mail : camiel@es40.org * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Although this is not required, the author would appreciate being notified of, * and receiving any modifications you may make to the source code that might serve * the general public. */ /** * \file * Contains the definitions for the emulated Symbios SCSI controller. * * $Id$ * * X-1.20 Camiel Vanderhoeven 31-MAY-2008 * Changes to include parts of Poco. * * X-1.19 Camiel Vanderhoeven 29-APR-2008 * CDiskController is no longer a CPCIDevice. devices that are both * should multiple inherit both. * * X-1.18 Camiel Vanderhoeven 25-MAR-2008 * Separate functions for different instructions. * * X-1.17 Camiel Vanderhoeven 25-MAR-2008 * Separate CSym53C895::check_phase() function. * * X-1.16 Camiel Vanderhoeven 14-MAR-2008 * Formatting. * * X-1.15 Camiel Vanderhoeven 13-MAR-2008 * Create init(), start_threads() and stop_threads() functions. * * X-1.14 Camiel Vanderhoeven 11-MAR-2008 * Named, debuggable mutexes. * * X-1.13 Camiel Vanderhoeven 05-MAR-2008 * Multi-threading version. * * X-1.12 Camiel Vanderhoeven 17-FEB-2008 * Comments. * * X-1.11 Camiel Vanderhoeven 12-JAN-2008 * Use disk's SCSI engine. * * X-1.10 Camiel Vanderhoeven 06-JAN-2008 * Leave changing the blocksize to the disk itself. * * X-1.9 Camiel Vanderhoeven 02-JAN-2008 * Comments. * * X-1.8 Camiel Vanderhoeven 28-DEC-2007 * Keep the compiler happy. * * X-1.7 Camiel Vanderhoeven 20-DEC-2007 * Do reselection on read commands. * * X-1.6 Camiel Vanderhoeven 19-DEC-2007 * Allow for different blocksizes. * * X-1.5 Camiel Vanderhoeven 18-DEC-2007 * Selection timeout occurs after the phase is checked the first time. * * X-1.4 Camiel Vanderhoeven 17-DEC-2007 * Added general timer. * * X-1.3 Camiel Vanderhoeven 17-DEC-2007 * SaveState file format 2.1 * * X-1.2 Camiel Vanderhoeven 16-DEC-2007 * Changed register structure. * * X-1.1 Camiel Vanderhoeven 14-DEC-2007 * Initial version in CVS **/ #if !defined(INCLUDED_SYM53C895_H_) #define INCLUDED_SYM53C895_H_ #include "PCIDevice.h" #include "DiskController.h" #include "SCSIDevice.h" /** * \brief Symbios Sym53C895 SCSI disk controller. * * \bug PROCGONE bugcheck during OpenVMS boot, probably because proper option ROM is missing. * * Documentation consulted: * - SCSI 2 (http://www.t10.org/ftp/t10/drafts/s2/s2-r10l.pdf) * - SCSI 3 Multimedia Commands (MMC) (http://www.t10.org/ftp/t10/drafts/mmc/mmc-r10a.pdf) * - SYM53C895 PCI-Ultra2 SCSI I/O Processor (http://www.datasheet4u.com/html/S/Y/M/SYM53C895_LSILogic.pdf.html) * - Symbios SCSI SCRIPTS Processors Programming Guide (http://la.causeuse.org/hauke/macbsd/symbios_53cXXX_doc/lsilogic-53cXXX-scripts.pdf) * . **/ class CSym53C895 : public CPCIDevice, public CDiskController, public CSCSIDevice, public CRunnable { public: virtual int SaveState(FILE* f); virtual int RestoreState(FILE* f); virtual void check_state(); virtual void run(); // Poco Thread entry point virtual void init(); virtual void start_threads(); virtual void stop_threads(); virtual void WriteMem_Bar(int func, int bar, u32 address, int dsize, u32 data); virtual u32 ReadMem_Bar(int func, int bar, u32 address, int dsize); virtual u32 config_read_custom(int func, u32 address, int dsize, u32 data); virtual void config_write_custom(int func, u32 address, int dsize, u32 old_data, u32 new_data, u32 data); virtual void register_disk(class CDisk* dsk, int bus, int dev); CSym53C895(CConfigurator* cfg, class CSystem* c, int pcibus, int pcidev); virtual ~CSym53C895(); private: void write_b_scntl0(u8 value); void write_b_scntl1(u8 value); void write_b_scntl3(u8 value); void write_b_istat(u8 value); u8 read_b_ctest2(); void write_b_ctest3(u8 value); void write_b_ctest4(u8 value); void write_b_ctest5(u8 value); void write_b_stest2(u8 value); void write_b_stest3(u8 value); u8 read_b_dstat(); u8 read_b_sist(int id); void write_b_dcntl(u8 value); u8 read_b_scratcha(int reg); u8 read_b_scratchb(int reg); void post_dsp_write(); int check_phase(int chk_phase); void execute_io_op(); void execute_rw_op(); void execute_ls_op(); void execute_mm_op(); void execute_tc_op(); void execute_bm_op(); void execute(); void eval_interrupts(); void set_interrupt(int reg, u8 interrupt); void chip_reset(); CThread* myThread; CSemaphore mySemaphore; CMutex* myRegLock; bool StopThread; /// The state structure contains all elements that need to be saved to the statefile. struct SSym_state { bool irq_asserted; union USym_regs { u8 reg8[128]; u16 reg16[64]; u32 reg32[64]; } regs; struct SSym_alu { bool carry; } alu; u8 ram[4096]; bool executing; bool wait_reselect; bool select_timeout; int disconnected; u32 wait_jump; u8 dstat_stack; u8 sist0_stack; u8 sist1_stack; long gen_timer; //int phase; } state; }; #endif // !defined(INCLUDED_SYM_H)