1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family |
4 | * of PCI-SCSI IO processors. |
5 | * |
6 | * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr> |
7 | * |
8 | * This driver is derived from the Linux sym53c8xx driver. |
9 | * Copyright (C) 1998-2000 Gerard Roudier |
10 | * |
11 | * The sym53c8xx driver is derived from the ncr53c8xx driver that had been |
12 | * a port of the FreeBSD ncr driver to Linux-1.2.13. |
13 | * |
14 | * The original ncr driver has been written for 386bsd and FreeBSD by |
15 | * Wolfgang Stanglmeier <wolf@cologne.de> |
16 | * Stefan Esser <se@mi.Uni-Koeln.de> |
17 | * Copyright (C) 1994 Wolfgang Stanglmeier |
18 | * |
19 | * Other major contributions: |
20 | * |
21 | * NVRAM detection and reading. |
22 | * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk> |
23 | * |
24 | *----------------------------------------------------------------------------- |
25 | */ |
26 | |
27 | #ifndef SYM_NVRAM_H |
28 | #define SYM_NVRAM_H |
29 | |
30 | #include "sym53c8xx.h" |
31 | |
32 | /* |
33 | * Symbios NVRAM data format |
34 | */ |
35 | #define SYMBIOS_NVRAM_SIZE 368 |
36 | #define SYMBIOS_NVRAM_ADDRESS 0x100 |
37 | |
38 | struct Symbios_nvram { |
39 | /* Header 6 bytes */ |
40 | u_short type; /* 0x0000 */ |
41 | u_short byte_count; /* excluding header/trailer */ |
42 | u_short checksum; |
43 | |
44 | /* Controller set up 20 bytes */ |
45 | u_char v_major; /* 0x00 */ |
46 | u_char v_minor; /* 0x30 */ |
47 | u32 boot_crc; |
48 | u_short flags; |
49 | #define SYMBIOS_SCAM_ENABLE (1) |
50 | #define SYMBIOS_PARITY_ENABLE (1<<1) |
51 | #define SYMBIOS_VERBOSE_MSGS (1<<2) |
52 | #define SYMBIOS_CHS_MAPPING (1<<3) |
53 | #define SYMBIOS_NO_NVRAM (1<<3) /* ??? */ |
54 | u_short flags1; |
55 | #define SYMBIOS_SCAN_HI_LO (1) |
56 | u_short term_state; |
57 | #define SYMBIOS_TERM_CANT_PROGRAM (0) |
58 | #define SYMBIOS_TERM_ENABLED (1) |
59 | #define SYMBIOS_TERM_DISABLED (2) |
60 | u_short rmvbl_flags; |
61 | #define SYMBIOS_RMVBL_NO_SUPPORT (0) |
62 | #define SYMBIOS_RMVBL_BOOT_DEVICE (1) |
63 | #define SYMBIOS_RMVBL_MEDIA_INSTALLED (2) |
64 | u_char host_id; |
65 | u_char num_hba; /* 0x04 */ |
66 | u_char num_devices; /* 0x10 */ |
67 | u_char max_scam_devices; /* 0x04 */ |
68 | u_char num_valid_scam_devices; /* 0x00 */ |
69 | u_char flags2; |
70 | #define SYMBIOS_AVOID_BUS_RESET (1<<2) |
71 | |
72 | /* Boot order 14 bytes * 4 */ |
73 | struct Symbios_host{ |
74 | u_short type; /* 4:8xx / 0:nok */ |
75 | u_short device_id; /* PCI device id */ |
76 | u_short vendor_id; /* PCI vendor id */ |
77 | u_char bus_nr; /* PCI bus number */ |
78 | u_char device_fn; /* PCI device/function number << 3*/ |
79 | u_short word8; |
80 | u_short flags; |
81 | #define SYMBIOS_INIT_SCAN_AT_BOOT (1) |
82 | u_short io_port; /* PCI io_port address */ |
83 | } host[4]; |
84 | |
85 | /* Targets 8 bytes * 16 */ |
86 | struct Symbios_target { |
87 | u_char flags; |
88 | #define SYMBIOS_DISCONNECT_ENABLE (1) |
89 | #define SYMBIOS_SCAN_AT_BOOT_TIME (1<<1) |
90 | #define SYMBIOS_SCAN_LUNS (1<<2) |
91 | #define SYMBIOS_QUEUE_TAGS_ENABLED (1<<3) |
92 | u_char rsvd; |
93 | u_char bus_width; /* 0x08/0x10 */ |
94 | u_char sync_offset; |
95 | u_short sync_period; /* 4*period factor */ |
96 | u_short timeout; |
97 | } target[16]; |
98 | /* Scam table 8 bytes * 4 */ |
99 | struct Symbios_scam { |
100 | u_short id; |
101 | u_short method; |
102 | #define SYMBIOS_SCAM_DEFAULT_METHOD (0) |
103 | #define SYMBIOS_SCAM_DONT_ASSIGN (1) |
104 | #define SYMBIOS_SCAM_SET_SPECIFIC_ID (2) |
105 | #define SYMBIOS_SCAM_USE_ORDER_GIVEN (3) |
106 | u_short status; |
107 | #define SYMBIOS_SCAM_UNKNOWN (0) |
108 | #define SYMBIOS_SCAM_DEVICE_NOT_FOUND (1) |
109 | #define SYMBIOS_SCAM_ID_NOT_SET (2) |
110 | #define SYMBIOS_SCAM_ID_VALID (3) |
111 | u_char target_id; |
112 | u_char rsvd; |
113 | } scam[4]; |
114 | |
115 | u_char spare_devices[15*8]; |
116 | u_char trailer[6]; /* 0xfe 0xfe 0x00 0x00 0x00 0x00 */ |
117 | }; |
118 | typedef struct Symbios_nvram Symbios_nvram; |
119 | typedef struct Symbios_host Symbios_host; |
120 | typedef struct Symbios_target Symbios_target; |
121 | typedef struct Symbios_scam Symbios_scam; |
122 | |
123 | /* |
124 | * Tekram NvRAM data format. |
125 | */ |
126 | #define TEKRAM_NVRAM_SIZE 64 |
127 | #define TEKRAM_93C46_NVRAM_ADDRESS 0 |
128 | #define TEKRAM_24C16_NVRAM_ADDRESS 0x40 |
129 | |
130 | struct Tekram_nvram { |
131 | struct Tekram_target { |
132 | u_char flags; |
133 | #define TEKRAM_PARITY_CHECK (1) |
134 | #define TEKRAM_SYNC_NEGO (1<<1) |
135 | #define TEKRAM_DISCONNECT_ENABLE (1<<2) |
136 | #define TEKRAM_START_CMD (1<<3) |
137 | #define TEKRAM_TAGGED_COMMANDS (1<<4) |
138 | #define TEKRAM_WIDE_NEGO (1<<5) |
139 | u_char sync_index; |
140 | u_short word2; |
141 | } target[16]; |
142 | u_char host_id; |
143 | u_char flags; |
144 | #define TEKRAM_MORE_THAN_2_DRIVES (1) |
145 | #define TEKRAM_DRIVES_SUP_1GB (1<<1) |
146 | #define TEKRAM_RESET_ON_POWER_ON (1<<2) |
147 | #define TEKRAM_ACTIVE_NEGATION (1<<3) |
148 | #define TEKRAM_IMMEDIATE_SEEK (1<<4) |
149 | #define TEKRAM_SCAN_LUNS (1<<5) |
150 | #define TEKRAM_REMOVABLE_FLAGS (3<<6) /* 0: disable; */ |
151 | /* 1: boot device; 2:all */ |
152 | u_char boot_delay_index; |
153 | u_char max_tags_index; |
154 | u_short flags1; |
155 | #define TEKRAM_F2_F6_ENABLED (1) |
156 | u_short spare[29]; |
157 | }; |
158 | typedef struct Tekram_nvram Tekram_nvram; |
159 | typedef struct Tekram_target Tekram_target; |
160 | |
161 | #ifndef CONFIG_PARISC |
162 | struct pdc_initiator { int dummy; }; |
163 | #endif |
164 | |
165 | /* |
166 | * Union of supported NVRAM formats. |
167 | */ |
168 | struct sym_nvram { |
169 | int type; |
170 | #define SYM_SYMBIOS_NVRAM (1) |
171 | #define SYM_TEKRAM_NVRAM (2) |
172 | #define SYM_PARISC_PDC (3) |
173 | #if SYM_CONF_NVRAM_SUPPORT |
174 | union { |
175 | Symbios_nvram Symbios; |
176 | Tekram_nvram Tekram; |
177 | struct pdc_initiator parisc; |
178 | } data; |
179 | #endif |
180 | }; |
181 | |
182 | #if SYM_CONF_NVRAM_SUPPORT |
183 | void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram); |
184 | void sym_nvram_setup_target (struct sym_tcb *tp, int target, struct sym_nvram *nvp); |
185 | int sym_read_nvram (struct sym_device *np, struct sym_nvram *nvp); |
186 | char *sym_nvram_type(struct sym_nvram *nvp); |
187 | #else |
188 | static inline void sym_nvram_setup_host(struct Scsi_Host *shost, struct sym_hcb *np, struct sym_nvram *nvram) { } |
189 | static inline void sym_nvram_setup_target(struct sym_tcb *tp, struct sym_nvram *nvram) { } |
190 | static inline int sym_read_nvram(struct sym_device *np, struct sym_nvram *nvp) |
191 | { |
192 | nvp->type = 0; |
193 | return 0; |
194 | } |
195 | static inline char *sym_nvram_type(struct sym_nvram *nvp) |
196 | { |
197 | return "No NVRAM" ; |
198 | } |
199 | #endif |
200 | |
201 | #endif /* SYM_NVRAM_H */ |
202 | |