1: /*
2: * dev_areca.h
3: *
4: * Home page of code is: http://smartmontools.sourceforge.net
5: *
6: * Copyright (C) 2012 Hank Wu <hank@areca.com.tw>
7: *
8: * This program is free software; you can redistribute it and/or modify
9: * it under the terms of the GNU General Public License as published by
10: * the Free Software Foundation; either version 2, or (at your option)
11: * any later version.
12: *
13: * You should have received a copy of the GNU General Public License
14: * (for example COPYING); If not, see <http://www.gnu.org/licenses/>.
15: *
16: */
17:
18: #ifndef DEV_ARECA_H
19: #define DEV_ARECA_H
20:
21: #define DEV_ARECA_H_CVSID "$Id: dev_areca.h,v 1.1.1.1 2013/07/22 01:17:35 misho Exp $"
22:
23: /////////////////////////////////////////////////////////////////////////////
24: /// Areca RAID support
25:
26: /* GENERIC ARECA IO CONTROL CODE*/
27: enum _GENERIC_ARCMSR_CMDS
28: {
29: ARCMSR_READ_RQBUFFER = 0,
30: ARCMSR_WRITE_WQBUFFER,
31: ARCMSR_CLEAR_RQBUFFER,
32: ARCMSR_CLEAR_WQBUFFER,
33: ARCMSR_RETURN_CODE_3F,
34: ARCMSR_CMD_TOTAL
35: };
36:
37: #define ARECA_SIG_STR "ARCMSR"
38:
39: #if defined(_WIN32) || defined(__CYGWIN__)
40: #define ARCMSR_IOCTL_READ_RQBUFFER 0x90002004
41: #define ARCMSR_IOCTL_WRITE_WQBUFFER 0x90002008
42: #define ARCMSR_IOCTL_CLEAR_RQBUFFER 0x9000200C
43: #define ARCMSR_IOCTL_CLEAR_WQBUFFER 0x90002010
44: #define ARCMSR_IOCTL_RETURN_CODE_3F 0x90002018
45: #elif defined(__linux__)
46: /*DeviceType*/
47: #define ARECA_SATA_RAID 0x90000000
48: /*FunctionCode*/
49: #define FUNCTION_READ_RQBUFFER 0x0801
50: #define FUNCTION_WRITE_WQBUFFER 0x0802
51: #define FUNCTION_CLEAR_RQBUFFER 0x0803
52: #define FUNCTION_CLEAR_WQBUFFER 0x0804
53: #define FUNCTION_RETURN_CODE_3F 0x0806
54:
55: /* ARECA IO CONTROL CODE*/
56: #define ARCMSR_IOCTL_READ_RQBUFFER (ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER)
57: #define ARCMSR_IOCTL_WRITE_WQBUFFER (ARECA_SATA_RAID | FUNCTION_WRITE_WQBUFFER)
58: #define ARCMSR_IOCTL_CLEAR_RQBUFFER (ARECA_SATA_RAID | FUNCTION_CLEAR_RQBUFFER)
59: #define ARCMSR_IOCTL_CLEAR_WQBUFFER (ARECA_SATA_RAID | FUNCTION_CLEAR_WQBUFFER)
60: #define ARCMSR_IOCTL_RETURN_CODE_3F (ARECA_SATA_RAID | FUNCTION_RETURN_CODE_3F)
61: #elif defined(__FreeBSD__)
62: #include <sys/ioctl.h> // _IOWR
63:
64: /*FunctionCode*/
65: #define FUNCTION_READ_RQBUFFER 0x0801
66: #define FUNCTION_WRITE_WQBUFFER 0x0802
67: #define FUNCTION_CLEAR_RQBUFFER 0x0803
68: #define FUNCTION_CLEAR_WQBUFFER 0x0804
69: #define FUNCTION_RETURN_CODE_3F 0x0806
70:
71: /* ARECA IO CONTROL CODE*/
72: #define ARCMSR_IOCTL_READ_RQBUFFER _IOWR('F', FUNCTION_READ_RQBUFFER, sSRB_BUFFER)
73: #define ARCMSR_IOCTL_WRITE_WQBUFFER _IOWR('F', FUNCTION_WRITE_WQBUFFER, sSRB_BUFFER)
74: #define ARCMSR_IOCTL_CLEAR_RQBUFFER _IOWR('F', FUNCTION_CLEAR_RQBUFFER, sSRB_BUFFER)
75: #define ARCMSR_IOCTL_CLEAR_WQBUFFER _IOWR('F', FUNCTION_CLEAR_WQBUFFER, sSRB_BUFFER)
76: #define ARCMSR_IOCTL_RETURN_CODE_3F _IOWR('F', FUNCTION_RETURN_CODE_3F, sSRB_BUFFER)
77: #endif
78:
79:
80: // The SRB_IO_CONTROL & SRB_BUFFER structures are used to communicate(to/from) to areca driver
81: typedef struct _ARCMSR_IO_HDR
82: {
83: unsigned int HeaderLength;
84: unsigned char Signature[8];
85: unsigned int Timeout;
86: unsigned int ControlCode;
87: unsigned int ReturnCode;
88: unsigned int Length;
89: } sARCMSR_IO_HDR;
90:
91: typedef struct _SRB_BUFFER
92: {
93: sARCMSR_IO_HDR srbioctl;
94: unsigned char ioctldatabuffer[1032]; // the buffer to put the command data to/from firmware
95: } sSRB_BUFFER;
96:
97: class generic_areca_device :
98: virtual public smart_device
99: {
100: public:
101: generic_areca_device(smart_interface * intf, const char * dev_name, int disknum, int encnum = 1);
102: ~generic_areca_device() throw();
103:
104: /////////////////////////////////////////////////////////////////////
105: // OS-dependent functions
106: virtual bool arcmsr_lock() = 0;
107: virtual bool arcmsr_unlock() = 0;
108: virtual int arcmsr_do_scsi_io(struct scsi_cmnd_io * iop) = 0;
109:
110: /////////////////////////////////////////////////////////////////////
111: // OS-independent functions
112: virtual int arcmsr_command_handler(unsigned long arcmsr_cmd, unsigned char *data, int data_len);
113: virtual int arcmsr_ui_handler(unsigned char *areca_packet, int areca_packet_len, unsigned char *result);
114: virtual bool arcmsr_probe();
115: virtual int arcmsr_get_dev_type();
116: virtual int arcmsr_get_controller_type();
117: virtual bool arcmsr_scsi_pass_through(scsi_cmnd_io * iop);
118: virtual bool arcmsr_ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out);
119:
120: protected:
121: generic_areca_device() : smart_device(never_called)
122: {
123: }
124:
125: void set_disknum(int disknum)
126: {m_disknum = disknum;}
127:
128: void set_encnum(int encnum)
129: {m_encnum = encnum;}
130:
131: int get_disknum()
132: {return m_disknum;}
133:
134: int get_encnum()
135: {return m_encnum;}
136:
137: private:
138: int m_disknum; ///< Disk number.
139: int m_encnum; ///< Enclosure number.
140: };
141:
142: // SATA(ATA) device behind Areca RAID Controller
143: class areca_ata_device
144: : public ata_device,
145: public generic_areca_device
146: {
147: public:
148: areca_ata_device(smart_interface * intf, const char * dev_name, int disknum, int encnum = 1);
149: ~areca_ata_device() throw();
150: bool arcmsr_lock() { return true; }
151: bool arcmsr_unlock() { return true; }
152: int arcmsr_do_scsi_io(struct scsi_cmnd_io * /* iop */)
153: {
154: return -1;
155: }
156: protected:
157: areca_ata_device(): smart_device(never_called)
158: {
159: }
160: virtual bool ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out);
161: };
162:
163: // SAS(SCSI) device behind Areca RAID Controller
164: class areca_scsi_device
165: : public scsi_device,
166: public generic_areca_device
167: {
168: public:
169: areca_scsi_device(smart_interface * intf, const char * dev_name, int disknum, int encnum = 1);
170: ~areca_scsi_device() throw();
171: bool arcmsr_lock() { return true; }
172: bool arcmsr_unlock() { return true; }
173: int arcmsr_do_scsi_io(struct scsi_cmnd_io * /* iop */)
174: {
175: return -1;
176: }
177: protected:
178: areca_scsi_device(): smart_device(never_called)
179: {
180: }
181: virtual bool scsi_pass_through(scsi_cmnd_io * iop);
182: };
183:
184: #endif
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