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1/*
2 * linux/include/linux/mmc/card.h
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 *
8 * Card driver specific definitions.
9 */
10#ifndef LINUX_MMC_CARD_H
11#define LINUX_MMC_CARD_H
12
13#include <linux/mmc/core.h>
14#include <linux/mod_devicetable.h>
15
16struct mmc_cid {
17 unsigned int manfid;
18 char prod_name[8];
19 unsigned int serial;
20 unsigned short oemid;
21 unsigned short year;
22 unsigned char hwrev;
23 unsigned char fwrev;
24 unsigned char month;
25};
26
27struct mmc_csd {
28 unsigned char structure;
29 unsigned char mmca_vsn;
30 unsigned short cmdclass;
31 unsigned short tacc_clks;
32 unsigned int tacc_ns;
33 unsigned int c_size;
34 unsigned int r2w_factor;
35 unsigned int max_dtr;
36 unsigned int erase_size; /* In sectors */
37 unsigned int read_blkbits;
38 unsigned int write_blkbits;
39 unsigned int capacity;
40 unsigned int read_partial:1,
41 read_misalign:1,
42 write_partial:1,
43 write_misalign:1;
44};
45
46struct mmc_ext_csd {
47 u8 rev;
48 u8 erase_group_def;
49 u8 sec_feature_support;
50 u8 rel_sectors;
51 u8 rel_param;
52 u8 part_config;
53 u8 cache_ctrl;
54 u8 rst_n_function;
55 unsigned int part_time; /* Units: ms */
56 unsigned int sa_timeout; /* Units: 100ns */
57 unsigned int generic_cmd6_time; /* Units: 10ms */
58 unsigned int power_off_longtime; /* Units: ms */
59 unsigned int hs_max_dtr;
60 unsigned int sectors;
61 unsigned int card_type;
62 unsigned int hc_erase_size; /* In sectors */
63 unsigned int hc_erase_timeout; /* In milliseconds */
64 unsigned int sec_trim_mult; /* Secure trim multiplier */
65 unsigned int sec_erase_mult; /* Secure erase multiplier */
66 unsigned int trim_timeout; /* In milliseconds */
67 bool enhanced_area_en; /* enable bit */
68 unsigned long long enhanced_area_offset; /* Units: Byte */
69 unsigned int enhanced_area_size; /* Units: KB */
70 unsigned int cache_size; /* Units: KB */
71 bool hpi_en; /* HPI enablebit */
72 bool hpi; /* HPI support bit */
73 unsigned int hpi_cmd; /* cmd used as HPI */
74 unsigned int boot_ro_lock; /* ro lock support */
75 bool boot_ro_lockable;
76 u8 raw_partition_support; /* 160 */
77 u8 raw_erased_mem_count; /* 181 */
78 u8 raw_ext_csd_structure; /* 194 */
79 u8 raw_card_type; /* 196 */
80 u8 out_of_int_time; /* 198 */
81 u8 raw_s_a_timeout; /* 217 */
82 u8 raw_hc_erase_gap_size; /* 221 */
83 u8 raw_erase_timeout_mult; /* 223 */
84 u8 raw_hc_erase_grp_size; /* 224 */
85 u8 raw_sec_trim_mult; /* 229 */
86 u8 raw_sec_erase_mult; /* 230 */
87 u8 raw_sec_feature_support;/* 231 */
88 u8 raw_trim_mult; /* 232 */
89 u8 raw_sectors[4]; /* 212 - 4 bytes */
90
91 unsigned int feature_support;
92#define MMC_DISCARD_FEATURE BIT(0) /* CMD38 feature */
93};
94
95struct sd_scr {
96 unsigned char sda_vsn;
97 unsigned char sda_spec3;
98 unsigned char bus_widths;
99#define SD_SCR_BUS_WIDTH_1 (1<<0)
100#define SD_SCR_BUS_WIDTH_4 (1<<2)
101 unsigned char cmds;
102#define SD_SCR_CMD20_SUPPORT (1<<0)
103#define SD_SCR_CMD23_SUPPORT (1<<1)
104};
105
106struct sd_ssr {
107 unsigned int au; /* In sectors */
108 unsigned int erase_timeout; /* In milliseconds */
109 unsigned int erase_offset; /* In milliseconds */
110};
111
112struct sd_switch_caps {
113 unsigned int hs_max_dtr;
114 unsigned int uhs_max_dtr;
115#define HIGH_SPEED_MAX_DTR 50000000
116#define UHS_SDR104_MAX_DTR 208000000
117#define UHS_SDR50_MAX_DTR 100000000
118#define UHS_DDR50_MAX_DTR 50000000
119#define UHS_SDR25_MAX_DTR UHS_DDR50_MAX_DTR
120#define UHS_SDR12_MAX_DTR 25000000
121 unsigned int sd3_bus_mode;
122#define UHS_SDR12_BUS_SPEED 0
123#define HIGH_SPEED_BUS_SPEED 1
124#define UHS_SDR25_BUS_SPEED 1
125#define UHS_SDR50_BUS_SPEED 2
126#define UHS_SDR104_BUS_SPEED 3
127#define UHS_DDR50_BUS_SPEED 4
128
129#define SD_MODE_HIGH_SPEED (1 << HIGH_SPEED_BUS_SPEED)
130#define SD_MODE_UHS_SDR12 (1 << UHS_SDR12_BUS_SPEED)
131#define SD_MODE_UHS_SDR25 (1 << UHS_SDR25_BUS_SPEED)
132#define SD_MODE_UHS_SDR50 (1 << UHS_SDR50_BUS_SPEED)
133#define SD_MODE_UHS_SDR104 (1 << UHS_SDR104_BUS_SPEED)
134#define SD_MODE_UHS_DDR50 (1 << UHS_DDR50_BUS_SPEED)
135 unsigned int sd3_drv_type;
136#define SD_DRIVER_TYPE_B 0x01
137#define SD_DRIVER_TYPE_A 0x02
138#define SD_DRIVER_TYPE_C 0x04
139#define SD_DRIVER_TYPE_D 0x08
140 unsigned int sd3_curr_limit;
141#define SD_SET_CURRENT_LIMIT_200 0
142#define SD_SET_CURRENT_LIMIT_400 1
143#define SD_SET_CURRENT_LIMIT_600 2
144#define SD_SET_CURRENT_LIMIT_800 3
145
146#define SD_MAX_CURRENT_200 (1 << SD_SET_CURRENT_LIMIT_200)
147#define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400)
148#define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600)
149#define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800)
150};
151
152struct sdio_cccr {
153 unsigned int sdio_vsn;
154 unsigned int sd_vsn;
155 unsigned int multi_block:1,
156 low_speed:1,
157 wide_bus:1,
158 high_power:1,
159 high_speed:1,
160 disable_cd:1;
161};
162
163struct sdio_cis {
164 unsigned short vendor;
165 unsigned short device;
166 unsigned short blksize;
167 unsigned int max_dtr;
168};
169
170struct mmc_host;
171struct sdio_func;
172struct sdio_func_tuple;
173
174#define SDIO_MAX_FUNCS 7
175
176/* The number of MMC physical partitions. These consist of:
177 * boot partitions (2), general purpose partitions (4) in MMC v4.4.
178 */
179#define MMC_NUM_BOOT_PARTITION 2
180#define MMC_NUM_GP_PARTITION 4
181#define MMC_NUM_PHY_PARTITION 6
182#define MAX_MMC_PART_NAME_LEN 20
183
184/*
185 * MMC Physical partitions
186 */
187struct mmc_part {
188 unsigned int size; /* partition size (in bytes) */
189 unsigned int part_cfg; /* partition type */
190 char name[MAX_MMC_PART_NAME_LEN];
191 bool force_ro; /* to make boot parts RO by default */
192 unsigned int area_type;
193#define MMC_BLK_DATA_AREA_MAIN (1<<0)
194#define MMC_BLK_DATA_AREA_BOOT (1<<1)
195#define MMC_BLK_DATA_AREA_GP (1<<2)
196};
197
198/*
199 * MMC device
200 */
201struct mmc_card {
202 struct mmc_host *host; /* the host this device belongs to */
203 struct device dev; /* the device */
204 unsigned int rca; /* relative card address of device */
205 unsigned int type; /* card type */
206#define MMC_TYPE_MMC 0 /* MMC card */
207#define MMC_TYPE_SD 1 /* SD card */
208#define MMC_TYPE_SDIO 2 /* SDIO card */
209#define MMC_TYPE_SD_COMBO 3 /* SD combo (IO+mem) card */
210 unsigned int state; /* (our) card state */
211#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */
212#define MMC_STATE_READONLY (1<<1) /* card is read-only */
213#define MMC_STATE_HIGHSPEED (1<<2) /* card is in high speed mode */
214#define MMC_STATE_BLOCKADDR (1<<3) /* card uses block-addressing */
215#define MMC_STATE_HIGHSPEED_DDR (1<<4) /* card is in high speed mode */
216#define MMC_STATE_ULTRAHIGHSPEED (1<<5) /* card is in ultra high speed mode */
217#define MMC_CARD_SDXC (1<<6) /* card is SDXC */
218#define MMC_CARD_REMOVED (1<<7) /* card has been removed */
219#define MMC_STATE_HIGHSPEED_200 (1<<8) /* card is in HS200 mode */
220 unsigned int quirks; /* card quirks */
221#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
222#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
223 /* for byte mode */
224#define MMC_QUIRK_NONSTD_SDIO (1<<2) /* non-standard SDIO card attached */
225 /* (missing CIA registers) */
226#define MMC_QUIRK_BROKEN_CLK_GATING (1<<3) /* clock gating the sdio bus will make card fail */
227#define MMC_QUIRK_NONSTD_FUNC_IF (1<<4) /* SDIO card has nonstd function interfaces */
228#define MMC_QUIRK_DISABLE_CD (1<<5) /* disconnect CD/DAT[3] resistor */
229#define MMC_QUIRK_INAND_CMD38 (1<<6) /* iNAND devices have broken CMD38 */
230#define MMC_QUIRK_BLK_NO_CMD23 (1<<7) /* Avoid CMD23 for regular multiblock */
231#define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8) /* Avoid sending 512 bytes in */
232#define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */
233 /* byte mode */
234 unsigned int poweroff_notify_state; /* eMMC4.5 notify feature */
235#define MMC_NO_POWER_NOTIFICATION 0
236#define MMC_POWERED_ON 1
237#define MMC_POWEROFF_SHORT 2
238#define MMC_POWEROFF_LONG 3
239
240 unsigned int erase_size; /* erase size in sectors */
241 unsigned int erase_shift; /* if erase unit is power 2 */
242 unsigned int pref_erase; /* in sectors */
243 u8 erased_byte; /* value of erased bytes */
244
245 u32 raw_cid[4]; /* raw card CID */
246 u32 raw_csd[4]; /* raw card CSD */
247 u32 raw_scr[2]; /* raw card SCR */
248 struct mmc_cid cid; /* card identification */
249 struct mmc_csd csd; /* card specific */
250 struct mmc_ext_csd ext_csd; /* mmc v4 extended card specific */
251 struct sd_scr scr; /* extra SD information */
252 struct sd_ssr ssr; /* yet more SD information */
253 struct sd_switch_caps sw_caps; /* switch (CMD6) caps */
254
255 unsigned int sdio_funcs; /* number of SDIO functions */
256 struct sdio_cccr cccr; /* common card info */
257 struct sdio_cis cis; /* common tuple info */
258 struct sdio_func *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
259 struct sdio_func *sdio_single_irq; /* SDIO function when only one IRQ active */
260 unsigned num_info; /* number of info strings */
261 const char **info; /* info strings */
262 struct sdio_func_tuple *tuples; /* unknown common tuples */
263
264 unsigned int sd_bus_speed; /* Bus Speed Mode set for the card */
265
266 struct dentry *debugfs_root;
267 struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
268 unsigned int nr_parts;
269};
270
271/*
272 * This function fill contents in mmc_part.
273 */
274static inline void mmc_part_add(struct mmc_card *card, unsigned int size,
275 unsigned int part_cfg, char *name, int idx, bool ro,
276 int area_type)
277{
278 card->part[card->nr_parts].size = size;
279 card->part[card->nr_parts].part_cfg = part_cfg;
280 sprintf(card->part[card->nr_parts].name, name, idx);
281 card->part[card->nr_parts].force_ro = ro;
282 card->part[card->nr_parts].area_type = area_type;
283 card->nr_parts++;
284}
285
286/*
287 * The world is not perfect and supplies us with broken mmc/sdio devices.
288 * For at least some of these bugs we need a work-around.
289 */
290
291struct mmc_fixup {
292 /* CID-specific fields. */
293 const char *name;
294
295 /* Valid revision range */
296 u64 rev_start, rev_end;
297
298 unsigned int manfid;
299 unsigned short oemid;
300
301 /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */
302 u16 cis_vendor, cis_device;
303
304 void (*vendor_fixup)(struct mmc_card *card, int data);
305 int data;
306};
307
308#define CID_MANFID_ANY (-1u)
309#define CID_OEMID_ANY ((unsigned short) -1)
310#define CID_NAME_ANY (NULL)
311
312#define END_FIXUP { 0 }
313
314#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end, \
315 _cis_vendor, _cis_device, \
316 _fixup, _data) \
317 { \
318 .name = (_name), \
319 .manfid = (_manfid), \
320 .oemid = (_oemid), \
321 .rev_start = (_rev_start), \
322 .rev_end = (_rev_end), \
323 .cis_vendor = (_cis_vendor), \
324 .cis_device = (_cis_device), \
325 .vendor_fixup = (_fixup), \
326 .data = (_data), \
327 }
328
329#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end, \
330 _fixup, _data) \
331 _FIXUP_EXT(_name, _manfid, \
332 _oemid, _rev_start, _rev_end, \
333 SDIO_ANY_ID, SDIO_ANY_ID, \
334 _fixup, _data) \
335
336#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
337 MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data)
338
339#define SDIO_FIXUP(_vendor, _device, _fixup, _data) \
340 _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY, \
341 CID_OEMID_ANY, 0, -1ull, \
342 _vendor, _device, \
343 _fixup, _data) \
344
345#define cid_rev(hwrev, fwrev, year, month) \
346 (((u64) hwrev) << 40 | \
347 ((u64) fwrev) << 32 | \
348 ((u64) year) << 16 | \
349 ((u64) month))
350
351#define cid_rev_card(card) \
352 cid_rev(card->cid.hwrev, \
353 card->cid.fwrev, \
354 card->cid.year, \
355 card->cid.month)
356
357/*
358 * Unconditionally quirk add/remove.
359 */
360
361static inline void __maybe_unused add_quirk(struct mmc_card *card, int data)
362{
363 card->quirks |= data;
364}
365
366static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
367{
368 card->quirks &= ~data;
369}
370
371#define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC)
372#define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD)
373#define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO)
374
375#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
376#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY)
377#define mmc_card_highspeed(c) ((c)->state & MMC_STATE_HIGHSPEED)
378#define mmc_card_hs200(c) ((c)->state & MMC_STATE_HIGHSPEED_200)
379#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
380#define mmc_card_ddr_mode(c) ((c)->state & MMC_STATE_HIGHSPEED_DDR)
381#define mmc_card_uhs(c) ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
382#define mmc_sd_card_uhs(c) ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
383#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
384#define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED))
385
386#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
387#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
388#define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
389#define mmc_card_set_hs200(c) ((c)->state |= MMC_STATE_HIGHSPEED_200)
390#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
391#define mmc_card_set_ddr_mode(c) ((c)->state |= MMC_STATE_HIGHSPEED_DDR)
392#define mmc_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
393#define mmc_sd_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
394#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
395#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
396
397/*
398 * Quirk add/remove for MMC products.
399 */
400
401static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data)
402{
403 if (mmc_card_mmc(card))
404 card->quirks |= data;
405}
406
407static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card,
408 int data)
409{
410 if (mmc_card_mmc(card))
411 card->quirks &= ~data;
412}
413
414/*
415 * Quirk add/remove for SD products.
416 */
417
418static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data)
419{
420 if (mmc_card_sd(card))
421 card->quirks |= data;
422}
423
424static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card,
425 int data)
426{
427 if (mmc_card_sd(card))
428 card->quirks &= ~data;
429}
430
431static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
432{
433 return c->quirks & MMC_QUIRK_LENIENT_FN0;
434}
435
436static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
437{
438 return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
439}
440
441static inline int mmc_card_disable_cd(const struct mmc_card *c)
442{
443 return c->quirks & MMC_QUIRK_DISABLE_CD;
444}
445
446static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c)
447{
448 return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF;
449}
450
451static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c)
452{
453 return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
454}
455
456static inline int mmc_card_long_read_time(const struct mmc_card *c)
457{
458 return c->quirks & MMC_QUIRK_LONG_READ_TIME;
459}
460
461#define mmc_card_name(c) ((c)->cid.prod_name)
462#define mmc_card_id(c) (dev_name(&(c)->dev))
463
464#define mmc_dev_to_card(d) container_of(d, struct mmc_card, dev)
465
466#define mmc_list_to_card(l) container_of(l, struct mmc_card, node)
467#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev)
468#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d)
469
470/*
471 * MMC device driver (e.g., Flash card, I/O card...)
472 */
473struct mmc_driver {
474 struct device_driver drv;
475 int (*probe)(struct mmc_card *);
476 void (*remove)(struct mmc_card *);
477 int (*suspend)(struct mmc_card *, pm_message_t);
478 int (*resume)(struct mmc_card *);
479};
480
481extern int mmc_register_driver(struct mmc_driver *);
482extern void mmc_unregister_driver(struct mmc_driver *);
483
484extern void mmc_fixup_device(struct mmc_card *card,
485 const struct mmc_fixup *table);
486
487#endif /* LINUX_MMC_CARD_H */