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1/*
2 * ms_block.h - Sony MemoryStick (legacy) storage support
3
4 * Copyright (C) 2013 Maxim Levitsky <maximlevitsky@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Minor portions of the driver are copied from mspro_block.c which is
11 * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
12 *
13 * Also ms structures were copied from old broken driver by same author
14 * These probably come from MS spec
15 *
16 */
17
18#ifndef MS_BLOCK_NEW_H
19#define MS_BLOCK_NEW_H
20
21#define MS_BLOCK_MAX_SEGS 32
22#define MS_BLOCK_MAX_PAGES ((2 << 16) - 1)
23
24#define MS_BLOCK_MAX_BOOT_ADDR 0x000c
25#define MS_BLOCK_BOOT_ID 0x0001
26#define MS_BLOCK_INVALID 0xffff
27#define MS_MAX_ZONES 16
28#define MS_BLOCKS_IN_ZONE 512
29
30#define MS_BLOCK_MAP_LINE_SZ 16
31#define MS_BLOCK_PART_SHIFT 3
32
33
34#define MEMSTICK_UNCORR_ERROR (MEMSTICK_STATUS1_UCFG | \
35 MEMSTICK_STATUS1_UCEX | MEMSTICK_STATUS1_UCDT)
36
37#define MEMSTICK_CORR_ERROR (MEMSTICK_STATUS1_FGER | MEMSTICK_STATUS1_EXER | \
38 MEMSTICK_STATUS1_DTER)
39
40#define MEMSTICK_INT_ERROR (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)
41
42#define MEMSTICK_OVERWRITE_FLAG_NORMAL \
43 (MEMSTICK_OVERWRITE_PGST1 | \
44 MEMSTICK_OVERWRITE_PGST0 | \
45 MEMSTICK_OVERWRITE_BKST)
46
47#define MEMSTICK_OV_PG_NORMAL \
48 (MEMSTICK_OVERWRITE_PGST1 | MEMSTICK_OVERWRITE_PGST0)
49
50#define MEMSTICK_MANAGMENT_FLAG_NORMAL \
51 (MEMSTICK_MANAGEMENT_SYSFLG | \
52 MEMSTICK_MANAGEMENT_SCMS1 | \
53 MEMSTICK_MANAGEMENT_SCMS0) \
54
55struct ms_boot_header {
56 unsigned short block_id;
57 unsigned short format_reserved;
58 unsigned char reserved0[184];
59 unsigned char data_entry;
60 unsigned char reserved1[179];
61} __packed;
62
63
64struct ms_system_item {
65 unsigned int start_addr;
66 unsigned int data_size;
67 unsigned char data_type_id;
68 unsigned char reserved[3];
69} __packed;
70
71struct ms_system_entry {
72 struct ms_system_item disabled_block;
73 struct ms_system_item cis_idi;
74 unsigned char reserved[24];
75} __packed;
76
77struct ms_boot_attr_info {
78 unsigned char memorystick_class;
79 unsigned char format_unique_value1;
80 unsigned short block_size;
81 unsigned short number_of_blocks;
82 unsigned short number_of_effective_blocks;
83 unsigned short page_size;
84 unsigned char extra_data_size;
85 unsigned char format_unique_value2;
86 unsigned char assembly_time[8];
87 unsigned char format_unique_value3;
88 unsigned char serial_number[3];
89 unsigned char assembly_manufacturer_code;
90 unsigned char assembly_model_code[3];
91 unsigned short memory_manufacturer_code;
92 unsigned short memory_device_code;
93 unsigned short implemented_capacity;
94 unsigned char format_unique_value4[2];
95 unsigned char vcc;
96 unsigned char vpp;
97 unsigned short controller_number;
98 unsigned short controller_function;
99 unsigned char reserved0[9];
100 unsigned char transfer_supporting;
101 unsigned short format_unique_value5;
102 unsigned char format_type;
103 unsigned char memorystick_application;
104 unsigned char device_type;
105 unsigned char reserved1[22];
106 unsigned char format_uniqure_value6[2];
107 unsigned char reserved2[15];
108} __packed;
109
110struct ms_cis_idi {
111 unsigned short general_config;
112 unsigned short logical_cylinders;
113 unsigned short reserved0;
114 unsigned short logical_heads;
115 unsigned short track_size;
116 unsigned short page_size;
117 unsigned short pages_per_track;
118 unsigned short msw;
119 unsigned short lsw;
120 unsigned short reserved1;
121 unsigned char serial_number[20];
122 unsigned short buffer_type;
123 unsigned short buffer_size_increments;
124 unsigned short long_command_ecc;
125 unsigned char firmware_version[28];
126 unsigned char model_name[18];
127 unsigned short reserved2[5];
128 unsigned short pio_mode_number;
129 unsigned short dma_mode_number;
130 unsigned short field_validity;
131 unsigned short current_logical_cylinders;
132 unsigned short current_logical_heads;
133 unsigned short current_pages_per_track;
134 unsigned int current_page_capacity;
135 unsigned short mutiple_page_setting;
136 unsigned int addressable_pages;
137 unsigned short single_word_dma;
138 unsigned short multi_word_dma;
139 unsigned char reserved3[128];
140} __packed;
141
142
143struct ms_boot_page {
144 struct ms_boot_header header;
145 struct ms_system_entry entry;
146 struct ms_boot_attr_info attr;
147} __packed;
148
149struct msb_data {
150 unsigned int usage_count;
151 struct memstick_dev *card;
152 struct gendisk *disk;
153 struct request_queue *queue;
154 spinlock_t q_lock;
155 struct hd_geometry geometry;
156 struct attribute_group attr_group;
157 struct request *req;
158 int caps;
159 int disk_id;
160
161 /* IO */
162 struct workqueue_struct *io_queue;
163 bool io_queue_stopped;
164 struct work_struct io_work;
165 bool card_dead;
166
167 /* Media properties */
168 struct ms_boot_page *boot_page;
169 u16 boot_block_locations[2];
170 int boot_block_count;
171
172 bool read_only;
173 unsigned short page_size;
174 int block_size;
175 int pages_in_block;
176 int zone_count;
177 int block_count;
178 int logical_block_count;
179
180 /* FTL tables */
181 unsigned long *used_blocks_bitmap;
182 unsigned long *erased_blocks_bitmap;
183 u16 *lba_to_pba_table;
184 int free_block_count[MS_MAX_ZONES];
185 bool ftl_initialized;
186
187 /* Cache */
188 unsigned char *cache;
189 unsigned long valid_cache_bitmap;
190 int cache_block_lba;
191 bool need_flush_cache;
192 struct timer_list cache_flush_timer;
193
194 /* Preallocated buffers */
195 unsigned char *block_buffer;
196 struct scatterlist prealloc_sg[MS_BLOCK_MAX_SEGS+1];
197
198
199 /* handler's local data */
200 struct ms_register_addr reg_addr;
201 bool addr_valid;
202
203 u8 command_value;
204 bool command_need_oob;
205 struct scatterlist *current_sg;
206 int current_sg_offset;
207
208 struct ms_register regs;
209 int current_page;
210
211 int state;
212 int exit_error;
213 bool int_polling;
214 unsigned long int_timeout;
215
216};
217
218enum msb_readpage_states {
219 MSB_RP_SEND_BLOCK_ADDRESS = 0,
220 MSB_RP_SEND_READ_COMMAND,
221
222 MSB_RP_SEND_INT_REQ,
223 MSB_RP_RECEIVE_INT_REQ_RESULT,
224
225 MSB_RP_SEND_READ_STATUS_REG,
226 MSB_RP_RECEIVE_STATUS_REG,
227
228 MSB_RP_SEND_OOB_READ,
229 MSB_RP_RECEIVE_OOB_READ,
230
231 MSB_RP_SEND_READ_DATA,
232 MSB_RP_RECEIVE_READ_DATA,
233};
234
235enum msb_write_block_states {
236 MSB_WB_SEND_WRITE_PARAMS = 0,
237 MSB_WB_SEND_WRITE_OOB,
238 MSB_WB_SEND_WRITE_COMMAND,
239
240 MSB_WB_SEND_INT_REQ,
241 MSB_WB_RECEIVE_INT_REQ,
242
243 MSB_WB_SEND_WRITE_DATA,
244 MSB_WB_RECEIVE_WRITE_CONFIRMATION,
245};
246
247enum msb_send_command_states {
248 MSB_SC_SEND_WRITE_PARAMS,
249 MSB_SC_SEND_WRITE_OOB,
250 MSB_SC_SEND_COMMAND,
251
252 MSB_SC_SEND_INT_REQ,
253 MSB_SC_RECEIVE_INT_REQ,
254
255};
256
257enum msb_reset_states {
258 MSB_RS_SEND,
259 MSB_RS_CONFIRM,
260};
261
262enum msb_par_switch_states {
263 MSB_PS_SEND_SWITCH_COMMAND,
264 MSB_PS_SWICH_HOST,
265 MSB_PS_CONFIRM,
266};
267
268struct chs_entry {
269 unsigned long size;
270 unsigned char sec;
271 unsigned short cyl;
272 unsigned char head;
273};
274
275static int msb_reset(struct msb_data *msb, bool full);
276
277static int h_msb_default_bad(struct memstick_dev *card,
278 struct memstick_request **mrq);
279
280#define __dbg(level, format, ...) \
281 do { \
282 if (debug >= level) \
283 pr_err(format "\n", ## __VA_ARGS__); \
284 } while (0)
285
286
287#define dbg(format, ...) __dbg(1, format, ## __VA_ARGS__)
288#define dbg_verbose(format, ...) __dbg(2, format, ## __VA_ARGS__)
289
290#endif