tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * linux/include/linux/mmc/card.h
4 *
5 * Card driver specific definitions.
6 */
7#ifndef LINUX_MMC_CARD_H
8#define LINUX_MMC_CARD_H
9
10#include <linux/device.h>
11#include <linux/mod_devicetable.h>
12
13struct mmc_cid {
14 unsigned int manfid;
15 char prod_name[8];
16 unsigned char prv;
17 unsigned int serial;
18 unsigned short oemid;
19 unsigned short year;
20 unsigned char hwrev;
21 unsigned char fwrev;
22 unsigned char month;
23};
24
25struct mmc_csd {
26 unsigned char structure;
27 unsigned char mmca_vsn;
28 unsigned short cmdclass;
29 unsigned short taac_clks;
30 unsigned int taac_ns;
31 unsigned int c_size;
32 unsigned int r2w_factor;
33 unsigned int max_dtr;
34 unsigned int erase_size; /* In sectors */
35 unsigned int read_blkbits;
36 unsigned int write_blkbits;
37 unsigned int capacity;
38 unsigned int read_partial:1,
39 read_misalign:1,
40 write_partial:1,
41 write_misalign:1,
42 dsr_imp:1;
43};
44
45struct mmc_ext_csd {
46 u8 rev;
47 u8 erase_group_def;
48 u8 sec_feature_support;
49 u8 rel_sectors;
50 u8 rel_param;
51 bool enhanced_rpmb_supported;
52 u8 part_config;
53 u8 cache_ctrl;
54 u8 rst_n_function;
55 u8 max_packed_writes;
56 u8 max_packed_reads;
57 u8 packed_event_en;
58 unsigned int part_time; /* Units: ms */
59 unsigned int sa_timeout; /* Units: 100ns */
60 unsigned int generic_cmd6_time; /* Units: 10ms */
61 unsigned int power_off_longtime; /* Units: ms */
62 u8 power_off_notification; /* state */
63 unsigned int hs_max_dtr;
64 unsigned int hs200_max_dtr;
65#define MMC_HIGH_26_MAX_DTR 26000000
66#define MMC_HIGH_52_MAX_DTR 52000000
67#define MMC_HIGH_DDR_MAX_DTR 52000000
68#define MMC_HS200_MAX_DTR 200000000
69 unsigned int sectors;
70 unsigned int hc_erase_size; /* In sectors */
71 unsigned int hc_erase_timeout; /* In milliseconds */
72 unsigned int sec_trim_mult; /* Secure trim multiplier */
73 unsigned int sec_erase_mult; /* Secure erase multiplier */
74 unsigned int trim_timeout; /* In milliseconds */
75 bool partition_setting_completed; /* enable bit */
76 unsigned long long enhanced_area_offset; /* Units: Byte */
77 unsigned int enhanced_area_size; /* Units: KB */
78 unsigned int cache_size; /* Units: KB */
79 bool hpi_en; /* HPI enablebit */
80 bool hpi; /* HPI support bit */
81 unsigned int hpi_cmd; /* cmd used as HPI */
82 bool bkops; /* background support bit */
83 bool man_bkops_en; /* manual bkops enable bit */
84 bool auto_bkops_en; /* auto bkops enable bit */
85 unsigned int data_sector_size; /* 512 bytes or 4KB */
86 unsigned int data_tag_unit_size; /* DATA TAG UNIT size */
87 unsigned int boot_ro_lock; /* ro lock support */
88 bool boot_ro_lockable;
89 bool ffu_capable; /* Firmware upgrade support */
90 bool cmdq_en; /* Command Queue enabled */
91 bool cmdq_support; /* Command Queue supported */
92 unsigned int cmdq_depth; /* Command Queue depth */
93#define MMC_FIRMWARE_LEN 8
94 u8 fwrev[MMC_FIRMWARE_LEN]; /* FW version */
95 u8 raw_exception_status; /* 54 */
96 u8 raw_partition_support; /* 160 */
97 u8 raw_rpmb_size_mult; /* 168 */
98 u8 raw_erased_mem_count; /* 181 */
99 u8 strobe_support; /* 184 */
100 u8 raw_ext_csd_structure; /* 194 */
101 u8 raw_card_type; /* 196 */
102 u8 raw_driver_strength; /* 197 */
103 u8 out_of_int_time; /* 198 */
104 u8 raw_pwr_cl_52_195; /* 200 */
105 u8 raw_pwr_cl_26_195; /* 201 */
106 u8 raw_pwr_cl_52_360; /* 202 */
107 u8 raw_pwr_cl_26_360; /* 203 */
108 u8 raw_s_a_timeout; /* 217 */
109 u8 raw_hc_erase_gap_size; /* 221 */
110 u8 raw_erase_timeout_mult; /* 223 */
111 u8 raw_hc_erase_grp_size; /* 224 */
112 u8 raw_sec_trim_mult; /* 229 */
113 u8 raw_sec_erase_mult; /* 230 */
114 u8 raw_sec_feature_support;/* 231 */
115 u8 raw_trim_mult; /* 232 */
116 u8 raw_pwr_cl_200_195; /* 236 */
117 u8 raw_pwr_cl_200_360; /* 237 */
118 u8 raw_pwr_cl_ddr_52_195; /* 238 */
119 u8 raw_pwr_cl_ddr_52_360; /* 239 */
120 u8 raw_pwr_cl_ddr_200_360; /* 253 */
121 u8 raw_bkops_status; /* 246 */
122 u8 raw_sectors[4]; /* 212 - 4 bytes */
123 u8 pre_eol_info; /* 267 */
124 u8 device_life_time_est_typ_a; /* 268 */
125 u8 device_life_time_est_typ_b; /* 269 */
126
127 unsigned int feature_support;
128#define MMC_DISCARD_FEATURE BIT(0) /* CMD38 feature */
129};
130
131struct sd_scr {
132 unsigned char sda_vsn;
133 unsigned char sda_spec3;
134 unsigned char sda_spec4;
135 unsigned char sda_specx;
136 unsigned char bus_widths;
137#define SD_SCR_BUS_WIDTH_1 (1<<0)
138#define SD_SCR_BUS_WIDTH_4 (1<<2)
139 unsigned char cmds;
140#define SD_SCR_CMD20_SUPPORT (1<<0)
141#define SD_SCR_CMD23_SUPPORT (1<<1)
142#define SD_SCR_CMD48_SUPPORT (1<<2)
143#define SD_SCR_CMD58_SUPPORT (1<<3)
144};
145
146struct sd_ssr {
147 unsigned int au; /* In sectors */
148 unsigned int erase_timeout; /* In milliseconds */
149 unsigned int erase_offset; /* In milliseconds */
150};
151
152struct sd_switch_caps {
153 unsigned int hs_max_dtr;
154 unsigned int uhs_max_dtr;
155#define HIGH_SPEED_MAX_DTR 50000000
156#define UHS_SDR104_MAX_DTR 208000000
157#define UHS_SDR50_MAX_DTR 100000000
158#define UHS_DDR50_MAX_DTR 50000000
159#define UHS_SDR25_MAX_DTR UHS_DDR50_MAX_DTR
160#define UHS_SDR12_MAX_DTR 25000000
161#define DEFAULT_SPEED_MAX_DTR UHS_SDR12_MAX_DTR
162 unsigned int sd3_bus_mode;
163#define UHS_SDR12_BUS_SPEED 0
164#define HIGH_SPEED_BUS_SPEED 1
165#define UHS_SDR25_BUS_SPEED 1
166#define UHS_SDR50_BUS_SPEED 2
167#define UHS_SDR104_BUS_SPEED 3
168#define UHS_DDR50_BUS_SPEED 4
169
170#define SD_MODE_HIGH_SPEED (1 << HIGH_SPEED_BUS_SPEED)
171#define SD_MODE_UHS_SDR12 (1 << UHS_SDR12_BUS_SPEED)
172#define SD_MODE_UHS_SDR25 (1 << UHS_SDR25_BUS_SPEED)
173#define SD_MODE_UHS_SDR50 (1 << UHS_SDR50_BUS_SPEED)
174#define SD_MODE_UHS_SDR104 (1 << UHS_SDR104_BUS_SPEED)
175#define SD_MODE_UHS_DDR50 (1 << UHS_DDR50_BUS_SPEED)
176 unsigned int sd3_drv_type;
177#define SD_DRIVER_TYPE_B 0x01
178#define SD_DRIVER_TYPE_A 0x02
179#define SD_DRIVER_TYPE_C 0x04
180#define SD_DRIVER_TYPE_D 0x08
181 unsigned int sd3_curr_limit;
182#define SD_SET_CURRENT_LIMIT_200 0
183#define SD_SET_CURRENT_LIMIT_400 1
184#define SD_SET_CURRENT_LIMIT_600 2
185#define SD_SET_CURRENT_LIMIT_800 3
186#define SD_SET_CURRENT_NO_CHANGE (-1)
187
188#define SD_MAX_CURRENT_200 (1 << SD_SET_CURRENT_LIMIT_200)
189#define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400)
190#define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600)
191#define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800)
192};
193
194struct sd_ext_reg {
195 u8 fno;
196 u8 page;
197 u16 offset;
198 u8 rev;
199 u8 feature_enabled;
200 u8 feature_support;
201/* Power Management Function. */
202#define SD_EXT_POWER_OFF_NOTIFY (1<<0)
203#define SD_EXT_POWER_SUSTENANCE (1<<1)
204#define SD_EXT_POWER_DOWN_MODE (1<<2)
205/* Performance Enhancement Function. */
206#define SD_EXT_PERF_FX_EVENT (1<<0)
207#define SD_EXT_PERF_CARD_MAINT (1<<1)
208#define SD_EXT_PERF_HOST_MAINT (1<<2)
209#define SD_EXT_PERF_CACHE (1<<3)
210#define SD_EXT_PERF_CMD_QUEUE (1<<4)
211};
212
213struct sdio_cccr {
214 unsigned int sdio_vsn;
215 unsigned int sd_vsn;
216 unsigned int multi_block:1,
217 low_speed:1,
218 wide_bus:1,
219 high_power:1,
220 high_speed:1,
221 disable_cd:1;
222};
223
224struct sdio_cis {
225 unsigned short vendor;
226 unsigned short device;
227 unsigned short blksize;
228 unsigned int max_dtr;
229};
230
231struct mmc_host;
232struct sdio_func;
233struct sdio_func_tuple;
234struct mmc_queue_req;
235
236#define SDIO_MAX_FUNCS 7
237
238/* The number of MMC physical partitions. These consist of:
239 * boot partitions (2), general purpose partitions (4) and
240 * RPMB partition (1) in MMC v4.4.
241 */
242#define MMC_NUM_BOOT_PARTITION 2
243#define MMC_NUM_GP_PARTITION 4
244#define MMC_NUM_PHY_PARTITION 7
245#define MAX_MMC_PART_NAME_LEN 20
246
247/*
248 * MMC Physical partitions
249 */
250struct mmc_part {
251 u64 size; /* partition size (in bytes) */
252 unsigned int part_cfg; /* partition type */
253 char name[MAX_MMC_PART_NAME_LEN];
254 bool force_ro; /* to make boot parts RO by default */
255 unsigned int area_type;
256#define MMC_BLK_DATA_AREA_MAIN (1<<0)
257#define MMC_BLK_DATA_AREA_BOOT (1<<1)
258#define MMC_BLK_DATA_AREA_GP (1<<2)
259#define MMC_BLK_DATA_AREA_RPMB (1<<3)
260};
261
262/*
263 * MMC device
264 */
265struct mmc_card {
266 struct mmc_host *host; /* the host this device belongs to */
267 struct device dev; /* the device */
268 u32 ocr; /* the current OCR setting */
269 unsigned int rca; /* relative card address of device */
270 unsigned int type; /* card type */
271#define MMC_TYPE_MMC 0 /* MMC card */
272#define MMC_TYPE_SD 1 /* SD card */
273#define MMC_TYPE_SDIO 2 /* SDIO card */
274#define MMC_TYPE_SD_COMBO 3 /* SD combo (IO+mem) card */
275 unsigned int state; /* (our) card state */
276 unsigned int quirks; /* card quirks */
277 unsigned int quirk_max_rate; /* max rate set by quirks */
278#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
279#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
280 /* for byte mode */
281#define MMC_QUIRK_NONSTD_SDIO (1<<2) /* non-standard SDIO card attached */
282 /* (missing CIA registers) */
283#define MMC_QUIRK_NONSTD_FUNC_IF (1<<4) /* SDIO card has nonstd function interfaces */
284#define MMC_QUIRK_DISABLE_CD (1<<5) /* disconnect CD/DAT[3] resistor */
285#define MMC_QUIRK_INAND_CMD38 (1<<6) /* iNAND devices have broken CMD38 */
286#define MMC_QUIRK_BLK_NO_CMD23 (1<<7) /* Avoid CMD23 for regular multiblock */
287#define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8) /* Avoid sending 512 bytes in */
288 /* byte mode */
289#define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */
290#define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */
291#define MMC_QUIRK_BROKEN_IRQ_POLLING (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */
292#define MMC_QUIRK_TRIM_BROKEN (1<<12) /* Skip trim */
293#define MMC_QUIRK_BROKEN_HPI (1<<13) /* Disable broken HPI support */
294
295 bool reenable_cmdq; /* Re-enable Command Queue */
296
297 unsigned int erase_size; /* erase size in sectors */
298 unsigned int erase_shift; /* if erase unit is power 2 */
299 unsigned int pref_erase; /* in sectors */
300 unsigned int eg_boundary; /* don't cross erase-group boundaries */
301 unsigned int erase_arg; /* erase / trim / discard */
302 u8 erased_byte; /* value of erased bytes */
303
304 u32 raw_cid[4]; /* raw card CID */
305 u32 raw_csd[4]; /* raw card CSD */
306 u32 raw_scr[2]; /* raw card SCR */
307 u32 raw_ssr[16]; /* raw card SSR */
308 struct mmc_cid cid; /* card identification */
309 struct mmc_csd csd; /* card specific */
310 struct mmc_ext_csd ext_csd; /* mmc v4 extended card specific */
311 struct sd_scr scr; /* extra SD information */
312 struct sd_ssr ssr; /* yet more SD information */
313 struct sd_switch_caps sw_caps; /* switch (CMD6) caps */
314 struct sd_ext_reg ext_power; /* SD extension reg for PM */
315 struct sd_ext_reg ext_perf; /* SD extension reg for PERF */
316
317 unsigned int sdio_funcs; /* number of SDIO functions */
318 atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */
319 struct sdio_cccr cccr; /* common card info */
320 struct sdio_cis cis; /* common tuple info */
321 struct sdio_func *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
322 struct sdio_func *sdio_single_irq; /* SDIO function when only one IRQ active */
323 u8 major_rev; /* major revision number */
324 u8 minor_rev; /* minor revision number */
325 unsigned num_info; /* number of info strings */
326 const char **info; /* info strings */
327 struct sdio_func_tuple *tuples; /* unknown common tuples */
328
329 unsigned int sd_bus_speed; /* Bus Speed Mode set for the card */
330 unsigned int mmc_avail_type; /* supported device type by both host and card */
331 unsigned int drive_strength; /* for UHS-I, HS200 or HS400 */
332
333 struct dentry *debugfs_root;
334 struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
335 unsigned int nr_parts;
336
337 struct workqueue_struct *complete_wq; /* Private workqueue */
338};
339
340static inline bool mmc_large_sector(struct mmc_card *card)
341{
342 return card->ext_csd.data_sector_size == 4096;
343}
344
345bool mmc_card_is_blockaddr(struct mmc_card *card);
346
347#define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC)
348#define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD)
349#define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO)
350
351#endif /* LINUX_MMC_CARD_H */