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1 | /* |
2 | * Sony MemoryStick support | |
3 | * | |
4 | * Copyright (C) 2007 Alex Dubov <oakad@yahoo.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 | */ | |
11 | ||
12 | #ifndef _MEMSTICK_H | |
13 | #define _MEMSTICK_H | |
14 | ||
15 | #include <linux/workqueue.h> | |
16 | #include <linux/scatterlist.h> | |
17 | #include <linux/device.h> | |
18 | ||
19 | /*** Hardware based structures ***/ | |
20 | ||
21 | struct ms_status_register { | |
22 | unsigned char reserved; | |
23 | unsigned char interrupt; | |
24 | #define MEMSTICK_INT_CMDNAK 0x0001 | |
25 | #define MEMSTICK_INT_BREQ 0x0020 | |
26 | #define MEMSTICK_INT_ERR 0x0040 | |
27 | #define MEMSTICK_INT_CED 0x0080 | |
28 | ||
29 | unsigned char status0; | |
30 | #define MEMSTICK_STATUS0_WP 0x0001 | |
31 | #define MEMSTICK_STATUS0_SL 0x0002 | |
32 | #define MEMSTICK_STATUS0_BF 0x0010 | |
33 | #define MEMSTICK_STATUS0_BE 0x0020 | |
34 | #define MEMSTICK_STATUS0_FB0 0x0040 | |
35 | #define MEMSTICK_STATUS0_MB 0x0080 | |
36 | ||
37 | unsigned char status1; | |
38 | #define MEMSTICK_STATUS1_UCFG 0x0001 | |
39 | #define MEMSTICK_STATUS1_FGER 0x0002 | |
40 | #define MEMSTICK_STATUS1_UCEX 0x0004 | |
41 | #define MEMSTICK_STATUS1_EXER 0x0008 | |
42 | #define MEMSTICK_STATUS1_UCDT 0x0010 | |
43 | #define MEMSTICK_STATUS1_DTER 0x0020 | |
44 | #define MEMSTICK_STATUS1_FBI 0x0040 | |
45 | #define MEMSTICK_STATUS1_MB 0x0080 | |
46 | } __attribute__((packed)); | |
47 | ||
48 | struct ms_id_register { | |
49 | unsigned char type; | |
50 | unsigned char reserved; | |
51 | unsigned char category; | |
52 | unsigned char class; | |
53 | } __attribute__((packed)); | |
54 | ||
55 | struct ms_param_register { | |
56 | unsigned char system; | |
57 | unsigned char block_address_msb; | |
58 | unsigned short block_address; | |
59 | unsigned char cp; | |
60 | #define MEMSTICK_CP_BLOCK 0x0000 | |
61 | #define MEMSTICK_CP_PAGE 0x0020 | |
62 | #define MEMSTICK_CP_EXTRA 0x0040 | |
63 | #define MEMSTICK_CP_OVERWRITE 0x0080 | |
64 | ||
65 | unsigned char page_address; | |
66 | } __attribute__((packed)); | |
67 | ||
68 | struct ms_extra_data_register { | |
69 | unsigned char overwrite_flag; | |
70 | #define MEMSTICK_OVERWRITE_UPDATA 0x0010 | |
71 | #define MEMSTICK_OVERWRITE_PAGE 0x0060 | |
72 | #define MEMSTICK_OVERWRITE_BLOCK 0x0080 | |
73 | ||
74 | unsigned char management_flag; | |
75 | #define MEMSTICK_MANAGEMENT_SYSTEM 0x0004 | |
76 | #define MEMSTICK_MANAGEMENT_TRANS_TABLE 0x0008 | |
77 | #define MEMSTICK_MANAGEMENT_COPY 0x0010 | |
78 | #define MEMSTICK_MANAGEMENT_ACCESS 0x0020 | |
79 | ||
80 | unsigned short logical_address; | |
81 | } __attribute__((packed)); | |
82 | ||
83 | struct ms_register { | |
84 | struct ms_status_register status; | |
85 | struct ms_id_register id; | |
86 | unsigned char reserved[8]; | |
87 | struct ms_param_register param; | |
88 | struct ms_extra_data_register extra_data; | |
89 | } __attribute__((packed)); | |
90 | ||
91 | struct mspro_param_register { | |
92 | unsigned char system; | |
93 | unsigned short data_count; | |
94 | unsigned int data_address; | |
95 | unsigned char cmd_param; | |
96 | } __attribute__((packed)); | |
97 | ||
98 | struct mspro_register { | |
99 | struct ms_status_register status; | |
100 | struct ms_id_register id; | |
101 | unsigned char reserved[8]; | |
102 | struct mspro_param_register param; | |
103 | } __attribute__((packed)); | |
104 | ||
105 | struct ms_register_addr { | |
106 | unsigned char r_offset; | |
107 | unsigned char r_length; | |
108 | unsigned char w_offset; | |
109 | unsigned char w_length; | |
110 | } __attribute__((packed)); | |
111 | ||
112 | enum { | |
113 | MS_TPC_READ_LONG_DATA = 0x02, | |
114 | MS_TPC_READ_SHORT_DATA = 0x03, | |
115 | MS_TPC_READ_REG = 0x04, | |
116 | MS_TPC_READ_IO_DATA = 0x05, /* unverified */ | |
117 | MS_TPC_GET_INT = 0x07, | |
118 | MS_TPC_SET_RW_REG_ADRS = 0x08, | |
119 | MS_TPC_EX_SET_CMD = 0x09, | |
120 | MS_TPC_WRITE_IO_DATA = 0x0a, /* unverified */ | |
121 | MS_TPC_WRITE_REG = 0x0b, | |
122 | MS_TPC_WRITE_SHORT_DATA = 0x0c, | |
123 | MS_TPC_WRITE_LONG_DATA = 0x0d, | |
124 | MS_TPC_SET_CMD = 0x0e | |
125 | }; | |
126 | ||
127 | enum { | |
128 | MS_CMD_BLOCK_END = 0x33, | |
129 | MS_CMD_RESET = 0x3c, | |
130 | MS_CMD_BLOCK_WRITE = 0x55, | |
131 | MS_CMD_SLEEP = 0x5a, | |
132 | MS_CMD_BLOCK_ERASE = 0x99, | |
133 | MS_CMD_BLOCK_READ = 0xaa, | |
134 | MS_CMD_CLEAR_BUF = 0xc3, | |
135 | MS_CMD_FLASH_STOP = 0xcc, | |
136 | MSPRO_CMD_FORMAT = 0x10, | |
137 | MSPRO_CMD_SLEEP = 0x11, | |
138 | MSPRO_CMD_READ_DATA = 0x20, | |
139 | MSPRO_CMD_WRITE_DATA = 0x21, | |
140 | MSPRO_CMD_READ_ATRB = 0x24, | |
141 | MSPRO_CMD_STOP = 0x25, | |
142 | MSPRO_CMD_ERASE = 0x26, | |
143 | MSPRO_CMD_SET_IBA = 0x46, | |
144 | MSPRO_CMD_SET_IBD = 0x47 | |
145 | /* | |
146 | MSPRO_CMD_RESET | |
147 | MSPRO_CMD_WAKEUP | |
148 | MSPRO_CMD_IN_IO_DATA | |
149 | MSPRO_CMD_OUT_IO_DATA | |
150 | MSPRO_CMD_READ_IO_ATRB | |
151 | MSPRO_CMD_IN_IO_FIFO | |
152 | MSPRO_CMD_OUT_IO_FIFO | |
153 | MSPRO_CMD_IN_IOM | |
154 | MSPRO_CMD_OUT_IOM | |
155 | */ | |
156 | }; | |
157 | ||
158 | /*** Driver structures and functions ***/ | |
159 | ||
160 | #define MEMSTICK_PART_SHIFT 3 | |
161 | ||
162 | enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE }; | |
163 | ||
164 | #define MEMSTICK_POWER_OFF 0 | |
165 | #define MEMSTICK_POWER_ON 1 | |
166 | ||
167 | #define MEMSTICK_SERIAL 0 | |
168 | #define MEMSTICK_PARALLEL 1 | |
169 | ||
170 | struct memstick_host; | |
171 | struct memstick_driver; | |
172 | ||
173 | #define MEMSTICK_MATCH_ALL 0x01 | |
174 | ||
175 | #define MEMSTICK_TYPE_LEGACY 0xff | |
176 | #define MEMSTICK_TYPE_DUO 0x00 | |
177 | #define MEMSTICK_TYPE_PRO 0x01 | |
178 | ||
179 | #define MEMSTICK_CATEGORY_STORAGE 0xff | |
180 | #define MEMSTICK_CATEGORY_STORAGE_DUO 0x00 | |
181 | ||
182 | #define MEMSTICK_CLASS_GENERIC 0xff | |
183 | #define MEMSTICK_CLASS_GENERIC_DUO 0x00 | |
184 | ||
185 | ||
186 | struct memstick_device_id { | |
187 | unsigned char match_flags; | |
188 | unsigned char type; | |
189 | unsigned char category; | |
190 | unsigned char class; | |
191 | }; | |
192 | ||
193 | struct memstick_request { | |
194 | unsigned char tpc; | |
195 | unsigned char data_dir:1, | |
196 | need_card_int:1, | |
197 | get_int_reg:1, | |
198 | io_type:2; | |
199 | #define MEMSTICK_IO_NONE 0 | |
200 | #define MEMSTICK_IO_VAL 1 | |
201 | #define MEMSTICK_IO_SG 2 | |
202 | ||
203 | unsigned char int_reg; | |
204 | int error; | |
205 | union { | |
206 | struct scatterlist sg; | |
207 | struct { | |
208 | unsigned char data_len; | |
209 | unsigned char data[15]; | |
210 | }; | |
211 | }; | |
212 | }; | |
213 | ||
214 | struct memstick_dev { | |
215 | struct memstick_device_id id; | |
216 | struct memstick_host *host; | |
217 | struct ms_register_addr reg_addr; | |
218 | struct completion mrq_complete; | |
219 | struct memstick_request current_mrq; | |
220 | ||
221 | /* Check that media driver is still willing to operate the device. */ | |
222 | int (*check)(struct memstick_dev *card); | |
223 | /* Get next request from the media driver. */ | |
224 | int (*next_request)(struct memstick_dev *card, | |
225 | struct memstick_request **mrq); | |
226 | ||
227 | struct device dev; | |
228 | }; | |
229 | ||
230 | struct memstick_host { | |
231 | struct mutex lock; | |
232 | unsigned int id; | |
233 | unsigned int caps; | |
234 | #define MEMSTICK_CAP_PARALLEL 1 | |
235 | #define MEMSTICK_CAP_AUTO_GET_INT 2 | |
236 | ||
237 | struct work_struct media_checker; | |
238 | struct class_device cdev; | |
239 | ||
240 | struct memstick_dev *card; | |
241 | unsigned int retries; | |
242 | ||
243 | /* Notify the host that some requests are pending. */ | |
244 | void (*request)(struct memstick_host *host); | |
245 | /* Set host IO parameters (power, clock, etc). */ | |
246 | void (*set_param)(struct memstick_host *host, | |
247 | enum memstick_param param, | |
248 | int value); | |
249 | unsigned long private[0] ____cacheline_aligned; | |
250 | }; | |
251 | ||
252 | struct memstick_driver { | |
253 | struct memstick_device_id *id_table; | |
254 | int (*probe)(struct memstick_dev *card); | |
255 | void (*remove)(struct memstick_dev *card); | |
256 | int (*suspend)(struct memstick_dev *card, | |
257 | pm_message_t state); | |
258 | int (*resume)(struct memstick_dev *card); | |
259 | ||
260 | struct device_driver driver; | |
261 | }; | |
262 | ||
263 | int memstick_register_driver(struct memstick_driver *drv); | |
264 | void memstick_unregister_driver(struct memstick_driver *drv); | |
265 | ||
266 | struct memstick_host *memstick_alloc_host(unsigned int extra, | |
267 | struct device *dev); | |
268 | ||
269 | int memstick_add_host(struct memstick_host *host); | |
270 | void memstick_remove_host(struct memstick_host *host); | |
271 | void memstick_free_host(struct memstick_host *host); | |
272 | void memstick_detect_change(struct memstick_host *host); | |
273 | ||
274 | void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc, | |
275 | struct scatterlist *sg); | |
276 | void memstick_init_req(struct memstick_request *mrq, unsigned char tpc, | |
277 | void *buf, size_t length); | |
278 | int memstick_next_req(struct memstick_host *host, | |
279 | struct memstick_request **mrq); | |
280 | void memstick_new_req(struct memstick_host *host); | |
281 | ||
282 | int memstick_set_rw_addr(struct memstick_dev *card); | |
283 | ||
284 | static inline void *memstick_priv(struct memstick_host *host) | |
285 | { | |
286 | return (void *)host->private; | |
287 | } | |
288 | ||
289 | static inline void *memstick_get_drvdata(struct memstick_dev *card) | |
290 | { | |
291 | return dev_get_drvdata(&card->dev); | |
292 | } | |
293 | ||
294 | static inline void memstick_set_drvdata(struct memstick_dev *card, void *data) | |
295 | { | |
296 | dev_set_drvdata(&card->dev, data); | |
297 | } | |
298 | ||
299 | #endif |