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TOMOYO Linux Cross Reference
Linux/include/linux/memstick.h

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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 0x01
 25 #define MEMSTICK_INT_IOREQ  0x08
 26 #define MEMSTICK_INT_IOBREQ 0x10
 27 #define MEMSTICK_INT_BREQ   0x20
 28 #define MEMSTICK_INT_ERR    0x40
 29 #define MEMSTICK_INT_CED    0x80
 30 
 31         unsigned char status0;
 32 #define MEMSTICK_STATUS0_WP  0x01
 33 #define MEMSTICK_STATUS0_SL  0x02
 34 #define MEMSTICK_STATUS0_BF  0x10
 35 #define MEMSTICK_STATUS0_BE  0x20
 36 #define MEMSTICK_STATUS0_FB0 0x40
 37 #define MEMSTICK_STATUS0_MB  0x80
 38 
 39         unsigned char status1;
 40 #define MEMSTICK_STATUS1_UCFG 0x01
 41 #define MEMSTICK_STATUS1_FGER 0x02
 42 #define MEMSTICK_STATUS1_UCEX 0x04
 43 #define MEMSTICK_STATUS1_EXER 0x08
 44 #define MEMSTICK_STATUS1_UCDT 0x10
 45 #define MEMSTICK_STATUS1_DTER 0x20
 46 #define MEMSTICK_STATUS1_FB1  0x40
 47 #define MEMSTICK_STATUS1_MB   0x80
 48 } __attribute__((packed));
 49 
 50 struct ms_id_register {
 51         unsigned char type;
 52         unsigned char if_mode;
 53         unsigned char category;
 54         unsigned char class;
 55 } __attribute__((packed));
 56 
 57 struct ms_param_register {
 58         unsigned char system;
 59 #define MEMSTICK_SYS_PAM  0x08
 60 #define MEMSTICK_SYS_BAMD 0x80
 61 
 62         unsigned char block_address_msb;
 63         unsigned short block_address;
 64         unsigned char cp;
 65 #define MEMSTICK_CP_BLOCK     0x00
 66 #define MEMSTICK_CP_PAGE      0x20
 67 #define MEMSTICK_CP_EXTRA     0x40
 68 #define MEMSTICK_CP_OVERWRITE 0x80
 69 
 70         unsigned char page_address;
 71 } __attribute__((packed));
 72 
 73 struct ms_extra_data_register {
 74         unsigned char  overwrite_flag;
 75 #define MEMSTICK_OVERWRITE_UDST  0x10
 76 #define MEMSTICK_OVERWRITE_PGST1 0x20
 77 #define MEMSTICK_OVERWRITE_PGST0 0x40
 78 #define MEMSTICK_OVERWRITE_BKST  0x80
 79 
 80         unsigned char  management_flag;
 81 #define MEMSTICK_MANAGEMENT_SYSFLG 0x04
 82 #define MEMSTICK_MANAGEMENT_ATFLG  0x08
 83 #define MEMSTICK_MANAGEMENT_SCMS1  0x10
 84 #define MEMSTICK_MANAGEMENT_SCMS0  0x20
 85 
 86         unsigned short logical_address;
 87 } __attribute__((packed));
 88 
 89 struct ms_register {
 90         struct ms_status_register     status;
 91         struct ms_id_register         id;
 92         unsigned char                 reserved[8];
 93         struct ms_param_register      param;
 94         struct ms_extra_data_register extra_data;
 95 } __attribute__((packed));
 96 
 97 struct mspro_param_register {
 98         unsigned char  system;
 99 #define MEMSTICK_SYS_PAR4   0x00
100 #define MEMSTICK_SYS_PAR8   0x40
101 #define MEMSTICK_SYS_SERIAL 0x80
102 
103         __be16 data_count;
104         __be32 data_address;
105         unsigned char  tpc_param;
106 } __attribute__((packed));
107 
108 struct mspro_io_info_register {
109         unsigned char version;
110         unsigned char io_category;
111         unsigned char current_req;
112         unsigned char card_opt_info;
113         unsigned char rdy_wait_time;
114 } __attribute__((packed));
115 
116 struct mspro_io_func_register {
117         unsigned char func_enable;
118         unsigned char func_select;
119         unsigned char func_intmask;
120         unsigned char transfer_mode;
121 } __attribute__((packed));
122 
123 struct mspro_io_cmd_register {
124         unsigned short tpc_param;
125         unsigned short data_count;
126         unsigned int   data_address;
127 } __attribute__((packed));
128 
129 struct mspro_register {
130         struct ms_status_register     status;
131         struct ms_id_register         id;
132         unsigned char                 reserved0[8];
133         struct mspro_param_register   param;
134         unsigned char                 reserved1[8];
135         struct mspro_io_info_register io_info;
136         struct mspro_io_func_register io_func;
137         unsigned char                 reserved2[7];
138         struct mspro_io_cmd_register  io_cmd;
139         unsigned char                 io_int;
140         unsigned char                 io_int_func;
141 } __attribute__((packed));
142 
143 struct ms_register_addr {
144         unsigned char r_offset;
145         unsigned char r_length;
146         unsigned char w_offset;
147         unsigned char w_length;
148 } __attribute__((packed));
149 
150 enum memstick_tpc {
151         MS_TPC_READ_MG_STATUS   = 0x01,
152         MS_TPC_READ_LONG_DATA   = 0x02,
153         MS_TPC_READ_SHORT_DATA  = 0x03,
154         MS_TPC_READ_MG_DATA     = 0x03,
155         MS_TPC_READ_REG         = 0x04,
156         MS_TPC_READ_QUAD_DATA   = 0x05,
157         MS_TPC_READ_IO_DATA     = 0x05,
158         MS_TPC_GET_INT          = 0x07,
159         MS_TPC_SET_RW_REG_ADRS  = 0x08,
160         MS_TPC_EX_SET_CMD       = 0x09,
161         MS_TPC_WRITE_QUAD_DATA  = 0x0a,
162         MS_TPC_WRITE_IO_DATA    = 0x0a,
163         MS_TPC_WRITE_REG        = 0x0b,
164         MS_TPC_WRITE_SHORT_DATA = 0x0c,
165         MS_TPC_WRITE_MG_DATA    = 0x0c,
166         MS_TPC_WRITE_LONG_DATA  = 0x0d,
167         MS_TPC_SET_CMD          = 0x0e
168 };
169 
170 enum memstick_command {
171         MS_CMD_BLOCK_END       = 0x33,
172         MS_CMD_RESET           = 0x3c,
173         MS_CMD_BLOCK_WRITE     = 0x55,
174         MS_CMD_SLEEP           = 0x5a,
175         MS_CMD_BLOCK_ERASE     = 0x99,
176         MS_CMD_BLOCK_READ      = 0xaa,
177         MS_CMD_CLEAR_BUF       = 0xc3,
178         MS_CMD_FLASH_STOP      = 0xcc,
179         MS_CMD_LOAD_ID         = 0x60,
180         MS_CMD_CMP_ICV         = 0x7f,
181         MSPRO_CMD_FORMAT       = 0x10,
182         MSPRO_CMD_SLEEP        = 0x11,
183         MSPRO_CMD_WAKEUP       = 0x12,
184         MSPRO_CMD_READ_DATA    = 0x20,
185         MSPRO_CMD_WRITE_DATA   = 0x21,
186         MSPRO_CMD_READ_ATRB    = 0x24,
187         MSPRO_CMD_STOP         = 0x25,
188         MSPRO_CMD_ERASE        = 0x26,
189         MSPRO_CMD_READ_QUAD    = 0x27,
190         MSPRO_CMD_WRITE_QUAD   = 0x28,
191         MSPRO_CMD_SET_IBD      = 0x46,
192         MSPRO_CMD_GET_IBD      = 0x47,
193         MSPRO_CMD_IN_IO_DATA   = 0xb0,
194         MSPRO_CMD_OUT_IO_DATA  = 0xb1,
195         MSPRO_CMD_READ_IO_ATRB = 0xb2,
196         MSPRO_CMD_IN_IO_FIFO   = 0xb3,
197         MSPRO_CMD_OUT_IO_FIFO  = 0xb4,
198         MSPRO_CMD_IN_IOM       = 0xb5,
199         MSPRO_CMD_OUT_IOM      = 0xb6,
200 };
201 
202 /*** Driver structures and functions ***/
203 
204 enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE };
205 
206 #define MEMSTICK_POWER_OFF 0
207 #define MEMSTICK_POWER_ON  1
208 
209 #define MEMSTICK_SERIAL   0
210 #define MEMSTICK_PAR4     1
211 #define MEMSTICK_PAR8     2
212 
213 struct memstick_host;
214 struct memstick_driver;
215 
216 struct memstick_device_id {
217         unsigned char match_flags;
218 #define MEMSTICK_MATCH_ALL            0x01
219 
220         unsigned char type;
221 #define MEMSTICK_TYPE_LEGACY          0xff
222 #define MEMSTICK_TYPE_DUO             0x00
223 #define MEMSTICK_TYPE_PRO             0x01
224 
225         unsigned char category;
226 #define MEMSTICK_CATEGORY_STORAGE     0xff
227 #define MEMSTICK_CATEGORY_STORAGE_DUO 0x00
228 #define MEMSTICK_CATEGORY_IO          0x01
229 #define MEMSTICK_CATEGORY_IO_PRO      0x10
230 
231         unsigned char class;
232 #define MEMSTICK_CLASS_FLASH          0xff
233 #define MEMSTICK_CLASS_DUO            0x00
234 #define MEMSTICK_CLASS_ROM            0x01
235 #define MEMSTICK_CLASS_RO             0x02
236 #define MEMSTICK_CLASS_WP             0x03
237 };
238 
239 struct memstick_request {
240         unsigned char tpc;
241         unsigned char data_dir:1,
242                       need_card_int:1,
243                       long_data:1;
244         unsigned char int_reg;
245         int           error;
246         union {
247                 struct scatterlist sg;
248                 struct {
249                         unsigned char data_len;
250                         unsigned char data[15];
251                 };
252         };
253 };
254 
255 struct memstick_dev {
256         struct memstick_device_id id;
257         struct memstick_host     *host;
258         struct ms_register_addr  reg_addr;
259         struct completion        mrq_complete;
260         struct memstick_request  current_mrq;
261 
262         /* Check that media driver is still willing to operate the device. */
263         int                      (*check)(struct memstick_dev *card);
264         /* Get next request from the media driver.                         */
265         int                      (*next_request)(struct memstick_dev *card,
266                                                  struct memstick_request **mrq);
267         /* Tell the media driver to stop doing things                      */
268         void                     (*stop)(struct memstick_dev *card);
269         /* Allow the media driver to continue                              */
270         void                     (*start)(struct memstick_dev *card);
271 
272         struct device            dev;
273 };
274 
275 struct memstick_host {
276         struct mutex        lock;
277         unsigned int        id;
278         unsigned int        caps;
279 #define MEMSTICK_CAP_AUTO_GET_INT  1
280 #define MEMSTICK_CAP_PAR4          2
281 #define MEMSTICK_CAP_PAR8          4
282 
283         struct work_struct  media_checker;
284         struct device       dev;
285 
286         struct memstick_dev *card;
287         unsigned int        retries;
288 
289         /* Notify the host that some requests are pending. */
290         void                (*request)(struct memstick_host *host);
291         /* Set host IO parameters (power, clock, etc).     */
292         int                 (*set_param)(struct memstick_host *host,
293                                          enum memstick_param param,
294                                          int value);
295         unsigned long       private[0] ____cacheline_aligned;
296 };
297 
298 struct memstick_driver {
299         struct memstick_device_id *id_table;
300         int                       (*probe)(struct memstick_dev *card);
301         void                      (*remove)(struct memstick_dev *card);
302         int                       (*suspend)(struct memstick_dev *card,
303                                              pm_message_t state);
304         int                       (*resume)(struct memstick_dev *card);
305 
306         struct device_driver      driver;
307 };
308 
309 int memstick_register_driver(struct memstick_driver *drv);
310 void memstick_unregister_driver(struct memstick_driver *drv);
311 
312 struct memstick_host *memstick_alloc_host(unsigned int extra,
313                                           struct device *dev);
314 
315 int memstick_add_host(struct memstick_host *host);
316 void memstick_remove_host(struct memstick_host *host);
317 void memstick_free_host(struct memstick_host *host);
318 void memstick_detect_change(struct memstick_host *host);
319 void memstick_suspend_host(struct memstick_host *host);
320 void memstick_resume_host(struct memstick_host *host);
321 
322 void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc,
323                           const struct scatterlist *sg);
324 void memstick_init_req(struct memstick_request *mrq, unsigned char tpc,
325                        const void *buf, size_t length);
326 int memstick_next_req(struct memstick_host *host,
327                       struct memstick_request **mrq);
328 void memstick_new_req(struct memstick_host *host);
329 
330 int memstick_set_rw_addr(struct memstick_dev *card);
331 
332 static inline void *memstick_priv(struct memstick_host *host)
333 {
334         return (void *)host->private;
335 }
336 
337 static inline void *memstick_get_drvdata(struct memstick_dev *card)
338 {
339         return dev_get_drvdata(&card->dev);
340 }
341 
342 static inline void memstick_set_drvdata(struct memstick_dev *card, void *data)
343 {
344         dev_set_drvdata(&card->dev, data);
345 }
346 
347 #endif
348 

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