liberis: include/eris/low/scsi.h Source File

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00001 /*
00002         liberis -- A set of libraries for controlling the NEC PC-FX
00003 
00004 Copyright (C) 2011              Alex Marshall "trap15" <trap15@raidenii.net>
00005 
00006 # This code is licensed to you under the terms of the MIT license;
00007 # see file LICENSE or http://www.opensource.org/licenses/mit-license.php
00008 */
00009 
00014 #ifndef _LIBERIS_LOW_SCSI_H_
00015 #define _LIBERIS_LOW_SCSI_H_
00016 
00017 #include <eris/types.h>
00018 
00019 typedef enum
00020 {
00021         SCSI_LOW_PHASE_BUS_FREE    = 0,
00022         SCSI_LOW_PHASE_SELECT      = 1,
00023         SCSI_LOW_PHASE_DATA_OUT    = 2,
00024         SCSI_LOW_PHASE_DATA_IN     = 3,
00025         SCSI_LOW_PHASE_COMMAND     = 4,
00026         SCSI_LOW_PHASE_STATUS      = 5,
00027         SCSI_LOW_PHASE_MESSAGE_OUT = 6,
00028         SCSI_LOW_PHASE_MESSAGE_IN  = 7,
00029         SCSI_LOW_PHASE_ILLEGAL     = 8
00030 } scsi_low_phase;
00031 typedef enum
00032 {
00033         // Our special statuses, indicating that the command is still in-progress.
00034         SCSI_LOW_STATUS_MISC            = -5,
00035         SCSI_LOW_STATUS_NEED_MESSAGE    = -4,
00036         SCSI_LOW_STATUS_NEED_DATA       = -3,
00037         SCSI_LOW_STATUS_HAVE_DATA       = -2,
00038         SCSI_LOW_STATUS_IN_PROGRESS     = -1,
00039 
00040         SCSI_LOW_STATUS_GOOD            = 0x0,
00041         SCSI_LOW_STATUS_CHECK_CONDITION = 0x2,
00042         SCSI_LOW_STATUS_CONDITION_MET   = 0x4,
00043         SCSI_LOW_STATUS_BUSY            = 0x6,
00044         SCSI_LOW_STATUS_INTERMEDIATE    = 0x10
00045 } scsi_low_status;
00046 typedef enum {
00047         SCSI_LOW_CMD_TEST_UNIT_READY  = 0x00,
00048         SCSI_LOW_CMD_REQ_SENSE        = 0x03,
00049         SCSI_LOW_CMD_READ10           = 0x28,
00050         SCSI_LOW_CMD_SEEK10           = 0x2B,
00051         SCSI_LOW_CMD_PREFETCH10       = 0x34,
00052         SCSI_LOW_CMD_READ_SUBQ        = 0x42,
00053         SCSI_LOW_CMD_READ_TOC         = 0x43,
00054         SCSI_LOW_CMD_READ_HEADER      = 0x44,
00055         SCSI_LOW_CMD_PLAY_AUDIO_INDEX = 0x48,
00056         SCSI_LOW_CMD_PAUSE            = 0x4B,
00057 } scsi_low_cmd;
00061 scsi_low_phase eris_low_scsi_get_phase(void);
00066 scsi_low_status eris_low_scsi_status(void);
00069 void eris_low_scsi_reset(void);
00076 u32 eris_low_scsi_data_in(u8 *buf, u32 maxlen);
00082 u32 eris_low_scsi_data_out(u8 *buf, u32 len);
00088 void eris_low_scsi_begin_dma(u32 kram_addr, u32 size);
00093 int eris_low_scsi_check_dma(void);
00096 void eris_low_scsi_finish_dma(void);
00099 void eris_low_scsi_abort(void);
00105 int eris_low_scsi_command(u8 *cdb, u32 len);
00106 // Get Error?
00107 
00108 #endif
00109