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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * ms_block.h - Sony MemoryStick (legacy) storage support
4
5 * Copyright (C) 2013 Maxim Levitsky <[email protected]>
6 *
7 * Minor portions of the driver are copied from mspro_block.c which is
8 * Copyright (C) 2007 Alex Dubov <[email protected]>
9 *
10 * Also ms structures were copied from old broken driver by same author
11 * These probably come from MS spec
12 */
13
14#ifndef MS_BLOCK_NEW_H
15#define MS_BLOCK_NEW_H
16
17#define MS_BLOCK_MAX_SEGS 32
18#define MS_BLOCK_MAX_PAGES ((2 << 16) - 1)
19
20#define MS_BLOCK_MAX_BOOT_ADDR 0x000c
21#define MS_BLOCK_BOOT_ID 0x0001
22#define MS_BLOCK_INVALID 0xffff
23#define MS_MAX_ZONES 16
24#define MS_BLOCKS_IN_ZONE 512
25
26#define MS_BLOCK_MAP_LINE_SZ 16
27#define MS_BLOCK_PART_SHIFT 3
28
29
30#define MEMSTICK_UNCORR_ERROR (MEMSTICK_STATUS1_UCFG | \
31 MEMSTICK_STATUS1_UCEX | MEMSTICK_STATUS1_UCDT)
32
33#define MEMSTICK_CORR_ERROR (MEMSTICK_STATUS1_FGER | MEMSTICK_STATUS1_EXER | \
34 MEMSTICK_STATUS1_DTER)
35
36#define MEMSTICK_INT_ERROR (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)
37
38#define MEMSTICK_OVERWRITE_FLAG_NORMAL \
39 (MEMSTICK_OVERWRITE_PGST1 | \
40 MEMSTICK_OVERWRITE_PGST0 | \
41 MEMSTICK_OVERWRITE_BKST)
42
43#define MEMSTICK_OV_PG_NORMAL \
44 (MEMSTICK_OVERWRITE_PGST1 | MEMSTICK_OVERWRITE_PGST0)
45
46#define MEMSTICK_MANAGEMENT_FLAG_NORMAL \
47 (MEMSTICK_MANAGEMENT_SYSFLG | \
48 MEMSTICK_MANAGEMENT_SCMS1 | \
49 MEMSTICK_MANAGEMENT_SCMS0) \
50
51struct ms_boot_header {
52 unsigned short block_id;
53 unsigned short format_reserved;
54 unsigned char reserved0[184];
55 unsigned char data_entry;
56 unsigned char reserved1[179];
57} __packed;
58
59
60struct ms_system_item {
61 unsigned int start_addr;
62 unsigned int data_size;
63 unsigned char data_type_id;
64 unsigned char reserved[3];
65} __packed;
66
67struct ms_system_entry {
68 struct ms_system_item disabled_block;
69 struct ms_system_item cis_idi;
70 unsigned char reserved[24];
71} __packed;
72
73struct ms_boot_attr_info {
74 unsigned char memorystick_class;
75 unsigned char format_unique_value1;
76 unsigned short block_size;
77 unsigned short number_of_blocks;
78 unsigned short number_of_effective_blocks;
79 unsigned short page_size;
80 unsigned char extra_data_size;
81 unsigned char format_unique_value2;
82 unsigned char assembly_time[8];
83 unsigned char format_unique_value3;
84 unsigned char serial_number[3];
85 unsigned char assembly_manufacturer_code;
86 unsigned char assembly_model_code[3];
87 unsigned short memory_manufacturer_code;
88 unsigned short memory_device_code;
89 unsigned short implemented_capacity;
90 unsigned char format_unique_value4[2];
91 unsigned char vcc;
92 unsigned char vpp;
93 unsigned short controller_number;
94 unsigned short controller_function;
95 unsigned char reserved0[9];
96 unsigned char transfer_supporting;
97 unsigned short format_unique_value5;
98 unsigned char format_type;
99 unsigned char memorystick_application;
100 unsigned char device_type;
101 unsigned char reserved1[22];
102 unsigned char format_uniqure_value6[2];
103 unsigned char reserved2[15];
104} __packed;
105
106struct ms_cis_idi {
107 unsigned short general_config;
108 unsigned short logical_cylinders;
109 unsigned short reserved0;
110 unsigned short logical_heads;
111 unsigned short track_size;
112 unsigned short page_size;
113 unsigned short pages_per_track;
114 unsigned short msw;
115 unsigned short lsw;
116 unsigned short reserved1;
117 unsigned char serial_number[20];
118 unsigned short buffer_type;
119 unsigned short buffer_size_increments;
120 unsigned short long_command_ecc;
121 unsigned char firmware_version[28];
122 unsigned char model_name[18];
123 unsigned short reserved2[5];
124 unsigned short pio_mode_number;
125 unsigned short dma_mode_number;
126 unsigned short field_validity;
127 unsigned short current_logical_cylinders;
128 unsigned short current_logical_heads;
129 unsigned short current_pages_per_track;
130 unsigned int current_page_capacity;
131 unsigned short mutiple_page_setting;
132 unsigned int addressable_pages;
133 unsigned short single_word_dma;
134 unsigned short multi_word_dma;
135 unsigned char reserved3[128];
136} __packed;
137
138
139struct ms_boot_page {
140 struct ms_boot_header header;
141 struct ms_system_entry entry;
142 struct ms_boot_attr_info attr;
143} __packed;
144
145struct msb_data {
146 struct memstick_dev *card;
147 struct gendisk *disk;
148 struct request_queue *queue;
149 spinlock_t q_lock;
150 struct blk_mq_tag_set tag_set;
151 struct hd_geometry geometry;
152 struct attribute_group attr_group;
153 struct request *req;
154 int caps;
155 int disk_id;
156
157 /* IO */
158 struct workqueue_struct *io_queue;
159 bool io_queue_stopped;
160 struct work_struct io_work;
161 bool card_dead;
162
163 /* Media properties */
164 struct ms_boot_page *boot_page;
165 u16 boot_block_locations[2];
166 int boot_block_count;
167
168 bool read_only;
169 unsigned short page_size;
170 int block_size;
171 int pages_in_block;
172 int zone_count;
173 int block_count;
174 int logical_block_count;
175
176 /* FTL tables */
177 unsigned long *used_blocks_bitmap;
178 unsigned long *erased_blocks_bitmap;
179 u16 *lba_to_pba_table;
180 int free_block_count[MS_MAX_ZONES];
181 bool ftl_initialized;
182
183 /* Cache */
184 unsigned char *cache;
185 unsigned long valid_cache_bitmap;
186 int cache_block_lba;
187 bool need_flush_cache;
188 struct timer_list cache_flush_timer;
189
190 /* Preallocated buffers */
191 unsigned char *block_buffer;
192 struct scatterlist prealloc_sg[MS_BLOCK_MAX_SEGS+1];
193
194
195 /* handler's local data */
196 struct ms_register_addr reg_addr;
197 bool addr_valid;
198
199 u8 command_value;
200 bool command_need_oob;
201 struct scatterlist *current_sg;
202 int current_sg_offset;
203
204 struct ms_register regs;
205 int current_page;
206
207 int state;
208 int exit_error;
209 bool int_polling;
210 unsigned long int_timeout;
211
212};
213
214enum msb_readpage_states {
215 MSB_RP_SEND_BLOCK_ADDRESS = 0,
216 MSB_RP_SEND_READ_COMMAND,
217
218 MSB_RP_SEND_INT_REQ,
219 MSB_RP_RECEIVE_INT_REQ_RESULT,
220
221 MSB_RP_SEND_READ_STATUS_REG,
222 MSB_RP_RECEIVE_STATUS_REG,
223
224 MSB_RP_SEND_OOB_READ,
225 MSB_RP_RECEIVE_OOB_READ,
226
227 MSB_RP_SEND_READ_DATA,
228 MSB_RP_RECEIVE_READ_DATA,
229};
230
231enum msb_write_block_states {
232 MSB_WB_SEND_WRITE_PARAMS = 0,
233 MSB_WB_SEND_WRITE_OOB,
234 MSB_WB_SEND_WRITE_COMMAND,
235
236 MSB_WB_SEND_INT_REQ,
237 MSB_WB_RECEIVE_INT_REQ,
238
239 MSB_WB_SEND_WRITE_DATA,
240 MSB_WB_RECEIVE_WRITE_CONFIRMATION,
241};
242
243enum msb_send_command_states {
244 MSB_SC_SEND_WRITE_PARAMS,
245 MSB_SC_SEND_WRITE_OOB,
246 MSB_SC_SEND_COMMAND,
247
248 MSB_SC_SEND_INT_REQ,
249 MSB_SC_RECEIVE_INT_REQ,
250
251};
252
253enum msb_reset_states {
254 MSB_RS_SEND,
255 MSB_RS_CONFIRM,
256};
257
258enum msb_par_switch_states {
259 MSB_PS_SEND_SWITCH_COMMAND,
260 MSB_PS_SWICH_HOST,
261 MSB_PS_CONFIRM,
262};
263
264struct chs_entry {
265 unsigned long size;
266 unsigned char sec;
267 unsigned short cyl;
268 unsigned char head;
269};
270
271static int msb_reset(struct msb_data *msb, bool full);
272
273static int h_msb_default_bad(struct memstick_dev *card,
274 struct memstick_request **mrq);
275
276#define __dbg(level, format, ...) \
277 do { \
278 if (debug >= level) \
279 pr_err(format "\n", ## __VA_ARGS__); \
280 } while (0)
281
282
283#define dbg(format, ...) __dbg(1, format, ## __VA_ARGS__)
284#define dbg_verbose(format, ...) __dbg(2, format, ## __VA_ARGS__)
285
286#endif