~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

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

Version: ~ [ linux-5.4 ] ~ [ linux-5.3.13 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.86 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.156 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.203 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.202 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.78 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 #ifndef __LINUX_REGMAP_H
  2 #define __LINUX_REGMAP_H
  3 
  4 /*
  5  * Register map access API
  6  *
  7  * Copyright 2011 Wolfson Microelectronics plc
  8  *
  9  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 10  *
 11  * This program is free software; you can redistribute it and/or modify
 12  * it under the terms of the GNU General Public License version 2 as
 13  * published by the Free Software Foundation.
 14  */
 15 
 16 #include <linux/list.h>
 17 #include <linux/rbtree.h>
 18 #include <linux/delay.h>
 19 #include <linux/err.h>
 20 #include <linux/bug.h>
 21 #include <linux/lockdep.h>
 22 
 23 struct module;
 24 struct device;
 25 struct i2c_client;
 26 struct irq_domain;
 27 struct spi_device;
 28 struct spmi_device;
 29 struct regmap;
 30 struct regmap_range_cfg;
 31 struct regmap_field;
 32 struct snd_ac97;
 33 
 34 /* An enum of all the supported cache types */
 35 enum regcache_type {
 36         REGCACHE_NONE,
 37         REGCACHE_RBTREE,
 38         REGCACHE_COMPRESSED,
 39         REGCACHE_FLAT,
 40 };
 41 
 42 /**
 43  * struct reg_default - Default value for a register.
 44  *
 45  * @reg: Register address.
 46  * @def: Register default value.
 47  *
 48  * We use an array of structs rather than a simple array as many modern devices
 49  * have very sparse register maps.
 50  */
 51 struct reg_default {
 52         unsigned int reg;
 53         unsigned int def;
 54 };
 55 
 56 /**
 57  * struct reg_sequence - An individual write from a sequence of writes.
 58  *
 59  * @reg: Register address.
 60  * @def: Register value.
 61  * @delay_us: Delay to be applied after the register write in microseconds
 62  *
 63  * Register/value pairs for sequences of writes with an optional delay in
 64  * microseconds to be applied after each write.
 65  */
 66 struct reg_sequence {
 67         unsigned int reg;
 68         unsigned int def;
 69         unsigned int delay_us;
 70 };
 71 
 72 #define regmap_update_bits(map, reg, mask, val) \
 73         regmap_update_bits_base(map, reg, mask, val, NULL, false, false)
 74 #define regmap_update_bits_async(map, reg, mask, val)\
 75         regmap_update_bits_base(map, reg, mask, val, NULL, true, false)
 76 #define regmap_update_bits_check(map, reg, mask, val, change)\
 77         regmap_update_bits_base(map, reg, mask, val, change, false, false)
 78 #define regmap_update_bits_check_async(map, reg, mask, val, change)\
 79         regmap_update_bits_base(map, reg, mask, val, change, true, false)
 80 
 81 #define regmap_write_bits(map, reg, mask, val) \
 82         regmap_update_bits_base(map, reg, mask, val, NULL, false, true)
 83 
 84 #define regmap_field_write(field, val) \
 85         regmap_field_update_bits_base(field, ~0, val, NULL, false, false)
 86 #define regmap_field_force_write(field, val) \
 87         regmap_field_update_bits_base(field, ~0, val, NULL, false, true)
 88 #define regmap_field_update_bits(field, mask, val)\
 89         regmap_field_update_bits_base(field, mask, val, NULL, false, false)
 90 #define regmap_field_force_update_bits(field, mask, val) \
 91         regmap_field_update_bits_base(field, mask, val, NULL, false, true)
 92 
 93 #define regmap_fields_write(field, id, val) \
 94         regmap_fields_update_bits_base(field, id, ~0, val, NULL, false, false)
 95 #define regmap_fields_force_write(field, id, val) \
 96         regmap_fields_update_bits_base(field, id, ~0, val, NULL, false, true)
 97 #define regmap_fields_update_bits(field, id, mask, val)\
 98         regmap_fields_update_bits_base(field, id, mask, val, NULL, false, false)
 99 #define regmap_fields_force_update_bits(field, id, mask, val) \
100         regmap_fields_update_bits_base(field, id, mask, val, NULL, false, true)
101 
102 /**
103  * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs
104  *
105  * @map: Regmap to read from
106  * @addr: Address to poll
107  * @val: Unsigned integer variable to read the value into
108  * @cond: Break condition (usually involving @val)
109  * @sleep_us: Maximum time to sleep between reads in us (0
110  *            tight-loops).  Should be less than ~20ms since usleep_range
111  *            is used (see Documentation/timers/timers-howto.txt).
112  * @timeout_us: Timeout in us, 0 means never timeout
113  *
114  * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read
115  * error return value in case of a error read. In the two former cases,
116  * the last read value at @addr is stored in @val. Must not be called
117  * from atomic context if sleep_us or timeout_us are used.
118  *
119  * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
120  */
121 #define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \
122 ({ \
123         ktime_t timeout = ktime_add_us(ktime_get(), timeout_us); \
124         int pollret; \
125         might_sleep_if(sleep_us); \
126         for (;;) { \
127                 pollret = regmap_read((map), (addr), &(val)); \
128                 if (pollret) \
129                         break; \
130                 if (cond) \
131                         break; \
132                 if (timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \
133                         pollret = regmap_read((map), (addr), &(val)); \
134                         break; \
135                 } \
136                 if (sleep_us) \
137                         usleep_range((sleep_us >> 2) + 1, sleep_us); \
138         } \
139         pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
140 })
141 
142 #ifdef CONFIG_REGMAP
143 
144 enum regmap_endian {
145         /* Unspecified -> 0 -> Backwards compatible default */
146         REGMAP_ENDIAN_DEFAULT = 0,
147         REGMAP_ENDIAN_BIG,
148         REGMAP_ENDIAN_LITTLE,
149         REGMAP_ENDIAN_NATIVE,
150 };
151 
152 /**
153  * struct regmap_range - A register range, used for access related checks
154  *                       (readable/writeable/volatile/precious checks)
155  *
156  * @range_min: address of first register
157  * @range_max: address of last register
158  */
159 struct regmap_range {
160         unsigned int range_min;
161         unsigned int range_max;
162 };
163 
164 #define regmap_reg_range(low, high) { .range_min = low, .range_max = high, }
165 
166 /**
167  * struct regmap_access_table - A table of register ranges for access checks
168  *
169  * @yes_ranges : pointer to an array of regmap ranges used as "yes ranges"
170  * @n_yes_ranges: size of the above array
171  * @no_ranges: pointer to an array of regmap ranges used as "no ranges"
172  * @n_no_ranges: size of the above array
173  *
174  * A table of ranges including some yes ranges and some no ranges.
175  * If a register belongs to a no_range, the corresponding check function
176  * will return false. If a register belongs to a yes range, the corresponding
177  * check function will return true. "no_ranges" are searched first.
178  */
179 struct regmap_access_table {
180         const struct regmap_range *yes_ranges;
181         unsigned int n_yes_ranges;
182         const struct regmap_range *no_ranges;
183         unsigned int n_no_ranges;
184 };
185 
186 typedef void (*regmap_lock)(void *);
187 typedef void (*regmap_unlock)(void *);
188 
189 /**
190  * struct regmap_config - Configuration for the register map of a device.
191  *
192  * @name: Optional name of the regmap. Useful when a device has multiple
193  *        register regions.
194  *
195  * @reg_bits: Number of bits in a register address, mandatory.
196  * @reg_stride: The register address stride. Valid register addresses are a
197  *              multiple of this value. If set to 0, a value of 1 will be
198  *              used.
199  * @pad_bits: Number of bits of padding between register and value.
200  * @val_bits: Number of bits in a register value, mandatory.
201  *
202  * @writeable_reg: Optional callback returning true if the register
203  *                 can be written to. If this field is NULL but wr_table
204  *                 (see below) is not, the check is performed on such table
205  *                 (a register is writeable if it belongs to one of the ranges
206  *                  specified by wr_table).
207  * @readable_reg: Optional callback returning true if the register
208  *                can be read from. If this field is NULL but rd_table
209  *                 (see below) is not, the check is performed on such table
210  *                 (a register is readable if it belongs to one of the ranges
211  *                  specified by rd_table).
212  * @volatile_reg: Optional callback returning true if the register
213  *                value can't be cached. If this field is NULL but
214  *                volatile_table (see below) is not, the check is performed on
215  *                such table (a register is volatile if it belongs to one of
216  *                the ranges specified by volatile_table).
217  * @precious_reg: Optional callback returning true if the register
218  *                should not be read outside of a call from the driver
219  *                (e.g., a clear on read interrupt status register). If this
220  *                field is NULL but precious_table (see below) is not, the
221  *                check is performed on such table (a register is precious if
222  *                it belongs to one of the ranges specified by precious_table).
223  * @lock:         Optional lock callback (overrides regmap's default lock
224  *                function, based on spinlock or mutex).
225  * @unlock:       As above for unlocking.
226  * @lock_arg:     this field is passed as the only argument of lock/unlock
227  *                functions (ignored in case regular lock/unlock functions
228  *                are not overridden).
229  * @reg_read:     Optional callback that if filled will be used to perform
230  *                all the reads from the registers. Should only be provided for
231  *                devices whose read operation cannot be represented as a simple
232  *                read operation on a bus such as SPI, I2C, etc. Most of the
233  *                devices do not need this.
234  * @reg_write:    Same as above for writing.
235  * @fast_io:      Register IO is fast. Use a spinlock instead of a mutex
236  *                to perform locking. This field is ignored if custom lock/unlock
237  *                functions are used (see fields lock/unlock of struct regmap_config).
238  *                This field is a duplicate of a similar file in
239  *                'struct regmap_bus' and serves exact same purpose.
240  *                 Use it only for "no-bus" cases.
241  * @max_register: Optional, specifies the maximum valid register address.
242  * @wr_table:     Optional, points to a struct regmap_access_table specifying
243  *                valid ranges for write access.
244  * @rd_table:     As above, for read access.
245  * @volatile_table: As above, for volatile registers.
246  * @precious_table: As above, for precious registers.
247  * @reg_defaults: Power on reset values for registers (for use with
248  *                register cache support).
249  * @num_reg_defaults: Number of elements in reg_defaults.
250  *
251  * @read_flag_mask: Mask to be set in the top bytes of the register when doing
252  *                  a read.
253  * @write_flag_mask: Mask to be set in the top bytes of the register when doing
254  *                   a write. If both read_flag_mask and write_flag_mask are
255  *                   empty the regmap_bus default masks are used.
256  * @use_single_rw: If set, converts the bulk read and write operations into
257  *                  a series of single read and write operations. This is useful
258  *                  for device that does not support bulk read and write.
259  * @can_multi_write: If set, the device supports the multi write mode of bulk
260  *                   write operations, if clear multi write requests will be
261  *                   split into individual write operations
262  *
263  * @cache_type: The actual cache type.
264  * @reg_defaults_raw: Power on reset values for registers (for use with
265  *                    register cache support).
266  * @num_reg_defaults_raw: Number of elements in reg_defaults_raw.
267  * @reg_format_endian: Endianness for formatted register addresses. If this is
268  *                     DEFAULT, the @reg_format_endian_default value from the
269  *                     regmap bus is used.
270  * @val_format_endian: Endianness for formatted register values. If this is
271  *                     DEFAULT, the @reg_format_endian_default value from the
272  *                     regmap bus is used.
273  *
274  * @ranges: Array of configuration entries for virtual address ranges.
275  * @num_ranges: Number of range configuration entries.
276  */
277 struct regmap_config {
278         const char *name;
279 
280         int reg_bits;
281         int reg_stride;
282         int pad_bits;
283         int val_bits;
284 
285         bool (*writeable_reg)(struct device *dev, unsigned int reg);
286         bool (*readable_reg)(struct device *dev, unsigned int reg);
287         bool (*volatile_reg)(struct device *dev, unsigned int reg);
288         bool (*precious_reg)(struct device *dev, unsigned int reg);
289         regmap_lock lock;
290         regmap_unlock unlock;
291         void *lock_arg;
292 
293         int (*reg_read)(void *context, unsigned int reg, unsigned int *val);
294         int (*reg_write)(void *context, unsigned int reg, unsigned int val);
295 
296         bool fast_io;
297 
298         unsigned int max_register;
299         const struct regmap_access_table *wr_table;
300         const struct regmap_access_table *rd_table;
301         const struct regmap_access_table *volatile_table;
302         const struct regmap_access_table *precious_table;
303         const struct reg_default *reg_defaults;
304         unsigned int num_reg_defaults;
305         enum regcache_type cache_type;
306         const void *reg_defaults_raw;
307         unsigned int num_reg_defaults_raw;
308 
309         unsigned long read_flag_mask;
310         unsigned long write_flag_mask;
311 
312         bool use_single_rw;
313         bool can_multi_write;
314 
315         enum regmap_endian reg_format_endian;
316         enum regmap_endian val_format_endian;
317 
318         const struct regmap_range_cfg *ranges;
319         unsigned int num_ranges;
320 };
321 
322 /**
323  * struct regmap_range_cfg - Configuration for indirectly accessed or paged
324  *                           registers.
325  *
326  * @name: Descriptive name for diagnostics
327  *
328  * @range_min: Address of the lowest register address in virtual range.
329  * @range_max: Address of the highest register in virtual range.
330  *
331  * @selector_reg: Register with selector field.
332  * @selector_mask: Bit shift for selector value.
333  * @selector_shift: Bit mask for selector value.
334  *
335  * @window_start: Address of first (lowest) register in data window.
336  * @window_len: Number of registers in data window.
337  *
338  * Registers, mapped to this virtual range, are accessed in two steps:
339  *     1. page selector register update;
340  *     2. access through data window registers.
341  */
342 struct regmap_range_cfg {
343         const char *name;
344 
345         /* Registers of virtual address range */
346         unsigned int range_min;
347         unsigned int range_max;
348 
349         /* Page selector for indirect addressing */
350         unsigned int selector_reg;
351         unsigned int selector_mask;
352         int selector_shift;
353 
354         /* Data window (per each page) */
355         unsigned int window_start;
356         unsigned int window_len;
357 };
358 
359 struct regmap_async;
360 
361 typedef int (*regmap_hw_write)(void *context, const void *data,
362                                size_t count);
363 typedef int (*regmap_hw_gather_write)(void *context,
364                                       const void *reg, size_t reg_len,
365                                       const void *val, size_t val_len);
366 typedef int (*regmap_hw_async_write)(void *context,
367                                      const void *reg, size_t reg_len,
368                                      const void *val, size_t val_len,
369                                      struct regmap_async *async);
370 typedef int (*regmap_hw_read)(void *context,
371                               const void *reg_buf, size_t reg_size,
372                               void *val_buf, size_t val_size);
373 typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg,
374                                   unsigned int *val);
375 typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg,
376                                    unsigned int val);
377 typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg,
378                                          unsigned int mask, unsigned int val);
379 typedef struct regmap_async *(*regmap_hw_async_alloc)(void);
380 typedef void (*regmap_hw_free_context)(void *context);
381 
382 /**
383  * struct regmap_bus - Description of a hardware bus for the register map
384  *                     infrastructure.
385  *
386  * @fast_io: Register IO is fast. Use a spinlock instead of a mutex
387  *           to perform locking. This field is ignored if custom lock/unlock
388  *           functions are used (see fields lock/unlock of
389  *           struct regmap_config).
390  * @write: Write operation.
391  * @gather_write: Write operation with split register/value, return -ENOTSUPP
392  *                if not implemented  on a given device.
393  * @async_write: Write operation which completes asynchronously, optional and
394  *               must serialise with respect to non-async I/O.
395  * @reg_write: Write a single register value to the given register address. This
396  *             write operation has to complete when returning from the function.
397  * @reg_update_bits: Update bits operation to be used against volatile
398  *                   registers, intended for devices supporting some mechanism
399  *                   for setting clearing bits without having to
400  *                   read/modify/write.
401  * @read: Read operation.  Data is returned in the buffer used to transmit
402  *         data.
403  * @reg_read: Read a single register value from a given register address.
404  * @free_context: Free context.
405  * @async_alloc: Allocate a regmap_async() structure.
406  * @read_flag_mask: Mask to be set in the top byte of the register when doing
407  *                  a read.
408  * @reg_format_endian_default: Default endianness for formatted register
409  *     addresses. Used when the regmap_config specifies DEFAULT. If this is
410  *     DEFAULT, BIG is assumed.
411  * @val_format_endian_default: Default endianness for formatted register
412  *     values. Used when the regmap_config specifies DEFAULT. If this is
413  *     DEFAULT, BIG is assumed.
414  * @max_raw_read: Max raw read size that can be used on the bus.
415  * @max_raw_write: Max raw write size that can be used on the bus.
416  */
417 struct regmap_bus {
418         bool fast_io;
419         regmap_hw_write write;
420         regmap_hw_gather_write gather_write;
421         regmap_hw_async_write async_write;
422         regmap_hw_reg_write reg_write;
423         regmap_hw_reg_update_bits reg_update_bits;
424         regmap_hw_read read;
425         regmap_hw_reg_read reg_read;
426         regmap_hw_free_context free_context;
427         regmap_hw_async_alloc async_alloc;
428         u8 read_flag_mask;
429         enum regmap_endian reg_format_endian_default;
430         enum regmap_endian val_format_endian_default;
431         size_t max_raw_read;
432         size_t max_raw_write;
433 };
434 
435 /*
436  * __regmap_init functions.
437  *
438  * These functions take a lock key and name parameter, and should not be called
439  * directly. Instead, use the regmap_init macros that generate a key and name
440  * for each call.
441  */
442 struct regmap *__regmap_init(struct device *dev,
443                              const struct regmap_bus *bus,
444                              void *bus_context,
445                              const struct regmap_config *config,
446                              struct lock_class_key *lock_key,
447                              const char *lock_name);
448 struct regmap *__regmap_init_i2c(struct i2c_client *i2c,
449                                  const struct regmap_config *config,
450                                  struct lock_class_key *lock_key,
451                                  const char *lock_name);
452 struct regmap *__regmap_init_spi(struct spi_device *dev,
453                                  const struct regmap_config *config,
454                                  struct lock_class_key *lock_key,
455                                  const char *lock_name);
456 struct regmap *__regmap_init_spmi_base(struct spmi_device *dev,
457                                        const struct regmap_config *config,
458                                        struct lock_class_key *lock_key,
459                                        const char *lock_name);
460 struct regmap *__regmap_init_spmi_ext(struct spmi_device *dev,
461                                       const struct regmap_config *config,
462                                       struct lock_class_key *lock_key,
463                                       const char *lock_name);
464 struct regmap *__regmap_init_w1(struct device *w1_dev,
465                                  const struct regmap_config *config,
466                                  struct lock_class_key *lock_key,
467                                  const char *lock_name);
468 struct regmap *__regmap_init_mmio_clk(struct device *dev, const char *clk_id,
469                                       void __iomem *regs,
470                                       const struct regmap_config *config,
471                                       struct lock_class_key *lock_key,
472                                       const char *lock_name);
473 struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97,
474                                   const struct regmap_config *config,
475                                   struct lock_class_key *lock_key,
476                                   const char *lock_name);
477 
478 struct regmap *__devm_regmap_init(struct device *dev,
479                                   const struct regmap_bus *bus,
480                                   void *bus_context,
481                                   const struct regmap_config *config,
482                                   struct lock_class_key *lock_key,
483                                   const char *lock_name);
484 struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c,
485                                       const struct regmap_config *config,
486                                       struct lock_class_key *lock_key,
487                                       const char *lock_name);
488 struct regmap *__devm_regmap_init_spi(struct spi_device *dev,
489                                       const struct regmap_config *config,
490                                       struct lock_class_key *lock_key,
491                                       const char *lock_name);
492 struct regmap *__devm_regmap_init_spmi_base(struct spmi_device *dev,
493                                             const struct regmap_config *config,
494                                             struct lock_class_key *lock_key,
495                                             const char *lock_name);
496 struct regmap *__devm_regmap_init_spmi_ext(struct spmi_device *dev,
497                                            const struct regmap_config *config,
498                                            struct lock_class_key *lock_key,
499                                            const char *lock_name);
500 struct regmap *__devm_regmap_init_w1(struct device *w1_dev,
501                                       const struct regmap_config *config,
502                                       struct lock_class_key *lock_key,
503                                       const char *lock_name);
504 struct regmap *__devm_regmap_init_mmio_clk(struct device *dev,
505                                            const char *clk_id,
506                                            void __iomem *regs,
507                                            const struct regmap_config *config,
508                                            struct lock_class_key *lock_key,
509                                            const char *lock_name);
510 struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97,
511                                        const struct regmap_config *config,
512                                        struct lock_class_key *lock_key,
513                                        const char *lock_name);
514 
515 /*
516  * Wrapper for regmap_init macros to include a unique lockdep key and name
517  * for each call. No-op if CONFIG_LOCKDEP is not set.
518  *
519  * @fn: Real function to call (in the form __[*_]regmap_init[_*])
520  * @name: Config variable name (#config in the calling macro)
521  **/
522 #ifdef CONFIG_LOCKDEP
523 #define __regmap_lockdep_wrapper(fn, name, ...)                         \
524 (                                                                       \
525         ({                                                              \
526                 static struct lock_class_key _key;                      \
527                 fn(__VA_ARGS__, &_key,                                  \
528                         KBUILD_BASENAME ":"                             \
529                         __stringify(__LINE__) ":"                       \
530                         "(" name ")->lock");                            \
531         })                                                              \
532 )
533 #else
534 #define __regmap_lockdep_wrapper(fn, name, ...) fn(__VA_ARGS__, NULL, NULL)
535 #endif
536 
537 /**
538  * regmap_init() - Initialise register map
539  *
540  * @dev: Device that will be interacted with
541  * @bus: Bus-specific callbacks to use with device
542  * @bus_context: Data passed to bus-specific callbacks
543  * @config: Configuration for register map
544  *
545  * The return value will be an ERR_PTR() on error or a valid pointer to
546  * a struct regmap.  This function should generally not be called
547  * directly, it should be called by bus-specific init functions.
548  */
549 #define regmap_init(dev, bus, bus_context, config)                      \
550         __regmap_lockdep_wrapper(__regmap_init, #config,                \
551                                 dev, bus, bus_context, config)
552 int regmap_attach_dev(struct device *dev, struct regmap *map,
553                       const struct regmap_config *config);
554 
555 /**
556  * regmap_init_i2c() - Initialise register map
557  *
558  * @i2c: Device that will be interacted with
559  * @config: Configuration for register map
560  *
561  * The return value will be an ERR_PTR() on error or a valid pointer to
562  * a struct regmap.
563  */
564 #define regmap_init_i2c(i2c, config)                                    \
565         __regmap_lockdep_wrapper(__regmap_init_i2c, #config,            \
566                                 i2c, config)
567 
568 /**
569  * regmap_init_spi() - Initialise register map
570  *
571  * @dev: Device that will be interacted with
572  * @config: Configuration for register map
573  *
574  * The return value will be an ERR_PTR() on error or a valid pointer to
575  * a struct regmap.
576  */
577 #define regmap_init_spi(dev, config)                                    \
578         __regmap_lockdep_wrapper(__regmap_init_spi, #config,            \
579                                 dev, config)
580 
581 /**
582  * regmap_init_spmi_base() - Create regmap for the Base register space
583  *
584  * @dev:        SPMI device that will be interacted with
585  * @config:     Configuration for register map
586  *
587  * The return value will be an ERR_PTR() on error or a valid pointer to
588  * a struct regmap.
589  */
590 #define regmap_init_spmi_base(dev, config)                              \
591         __regmap_lockdep_wrapper(__regmap_init_spmi_base, #config,      \
592                                 dev, config)
593 
594 /**
595  * regmap_init_spmi_ext() - Create regmap for Ext register space
596  *
597  * @dev:        Device that will be interacted with
598  * @config:     Configuration for register map
599  *
600  * The return value will be an ERR_PTR() on error or a valid pointer to
601  * a struct regmap.
602  */
603 #define regmap_init_spmi_ext(dev, config)                               \
604         __regmap_lockdep_wrapper(__regmap_init_spmi_ext, #config,       \
605                                 dev, config)
606 
607 /**
608  * regmap_init_w1() - Initialise register map
609  *
610  * @w1_dev: Device that will be interacted with
611  * @config: Configuration for register map
612  *
613  * The return value will be an ERR_PTR() on error or a valid pointer to
614  * a struct regmap.
615  */
616 #define regmap_init_w1(w1_dev, config)                                  \
617         __regmap_lockdep_wrapper(__regmap_init_w1, #config,             \
618                                 w1_dev, config)
619 
620 /**
621  * regmap_init_mmio_clk() - Initialise register map with register clock
622  *
623  * @dev: Device that will be interacted with
624  * @clk_id: register clock consumer ID
625  * @regs: Pointer to memory-mapped IO region
626  * @config: Configuration for register map
627  *
628  * The return value will be an ERR_PTR() on error or a valid pointer to
629  * a struct regmap.
630  */
631 #define regmap_init_mmio_clk(dev, clk_id, regs, config)                 \
632         __regmap_lockdep_wrapper(__regmap_init_mmio_clk, #config,       \
633                                 dev, clk_id, regs, config)
634 
635 /**
636  * regmap_init_mmio() - Initialise register map
637  *
638  * @dev: Device that will be interacted with
639  * @regs: Pointer to memory-mapped IO region
640  * @config: Configuration for register map
641  *
642  * The return value will be an ERR_PTR() on error or a valid pointer to
643  * a struct regmap.
644  */
645 #define regmap_init_mmio(dev, regs, config)             \
646         regmap_init_mmio_clk(dev, NULL, regs, config)
647 
648 /**
649  * regmap_init_ac97() - Initialise AC'97 register map
650  *
651  * @ac97: Device that will be interacted with
652  * @config: Configuration for register map
653  *
654  * The return value will be an ERR_PTR() on error or a valid pointer to
655  * a struct regmap.
656  */
657 #define regmap_init_ac97(ac97, config)                                  \
658         __regmap_lockdep_wrapper(__regmap_init_ac97, #config,           \
659                                 ac97, config)
660 bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
661 
662 /**
663  * devm_regmap_init() - Initialise managed register map
664  *
665  * @dev: Device that will be interacted with
666  * @bus: Bus-specific callbacks to use with device
667  * @bus_context: Data passed to bus-specific callbacks
668  * @config: Configuration for register map
669  *
670  * The return value will be an ERR_PTR() on error or a valid pointer
671  * to a struct regmap.  This function should generally not be called
672  * directly, it should be called by bus-specific init functions.  The
673  * map will be automatically freed by the device management code.
674  */
675 #define devm_regmap_init(dev, bus, bus_context, config)                 \
676         __regmap_lockdep_wrapper(__devm_regmap_init, #config,           \
677                                 dev, bus, bus_context, config)
678 
679 /**
680  * devm_regmap_init_i2c() - Initialise managed register map
681  *
682  * @i2c: Device that will be interacted with
683  * @config: Configuration for register map
684  *
685  * The return value will be an ERR_PTR() on error or a valid pointer
686  * to a struct regmap.  The regmap will be automatically freed by the
687  * device management code.
688  */
689 #define devm_regmap_init_i2c(i2c, config)                               \
690         __regmap_lockdep_wrapper(__devm_regmap_init_i2c, #config,       \
691                                 i2c, config)
692 
693 /**
694  * devm_regmap_init_spi() - Initialise register map
695  *
696  * @dev: Device that will be interacted with
697  * @config: Configuration for register map
698  *
699  * The return value will be an ERR_PTR() on error or a valid pointer
700  * to a struct regmap.  The map will be automatically freed by the
701  * device management code.
702  */
703 #define devm_regmap_init_spi(dev, config)                               \
704         __regmap_lockdep_wrapper(__devm_regmap_init_spi, #config,       \
705                                 dev, config)
706 
707 /**
708  * devm_regmap_init_spmi_base() - Create managed regmap for Base register space
709  *
710  * @dev:        SPMI device that will be interacted with
711  * @config:     Configuration for register map
712  *
713  * The return value will be an ERR_PTR() on error or a valid pointer
714  * to a struct regmap.  The regmap will be automatically freed by the
715  * device management code.
716  */
717 #define devm_regmap_init_spmi_base(dev, config)                         \
718         __regmap_lockdep_wrapper(__devm_regmap_init_spmi_base, #config, \
719                                 dev, config)
720 
721 /**
722  * devm_regmap_init_spmi_ext() - Create managed regmap for Ext register space
723  *
724  * @dev:        SPMI device that will be interacted with
725  * @config:     Configuration for register map
726  *
727  * The return value will be an ERR_PTR() on error or a valid pointer
728  * to a struct regmap.  The regmap will be automatically freed by the
729  * device management code.
730  */
731 #define devm_regmap_init_spmi_ext(dev, config)                          \
732         __regmap_lockdep_wrapper(__devm_regmap_init_spmi_ext, #config,  \
733                                 dev, config)
734 
735 /**
736  * devm_regmap_init_w1() - Initialise managed register map
737  *
738  * @w1_dev: Device that will be interacted with
739  * @config: Configuration for register map
740  *
741  * The return value will be an ERR_PTR() on error or a valid pointer
742  * to a struct regmap.  The regmap will be automatically freed by the
743  * device management code.
744  */
745 #define devm_regmap_init_w1(w1_dev, config)                             \
746         __regmap_lockdep_wrapper(__devm_regmap_init_w1, #config,        \
747                                 w1_dev, config)
748 /**
749  * devm_regmap_init_mmio_clk() - Initialise managed register map with clock
750  *
751  * @dev: Device that will be interacted with
752  * @clk_id: register clock consumer ID
753  * @regs: Pointer to memory-mapped IO region
754  * @config: Configuration for register map
755  *
756  * The return value will be an ERR_PTR() on error or a valid pointer
757  * to a struct regmap.  The regmap will be automatically freed by the
758  * device management code.
759  */
760 #define devm_regmap_init_mmio_clk(dev, clk_id, regs, config)            \
761         __regmap_lockdep_wrapper(__devm_regmap_init_mmio_clk, #config,  \
762                                 dev, clk_id, regs, config)
763 
764 /**
765  * devm_regmap_init_mmio() - Initialise managed register map
766  *
767  * @dev: Device that will be interacted with
768  * @regs: Pointer to memory-mapped IO region
769  * @config: Configuration for register map
770  *
771  * The return value will be an ERR_PTR() on error or a valid pointer
772  * to a struct regmap.  The regmap will be automatically freed by the
773  * device management code.
774  */
775 #define devm_regmap_init_mmio(dev, regs, config)                \
776         devm_regmap_init_mmio_clk(dev, NULL, regs, config)
777 
778 /**
779  * devm_regmap_init_ac97() - Initialise AC'97 register map
780  *
781  * @ac97: Device that will be interacted with
782  * @config: Configuration for register map
783  *
784  * The return value will be an ERR_PTR() on error or a valid pointer
785  * to a struct regmap.  The regmap will be automatically freed by the
786  * device management code.
787  */
788 #define devm_regmap_init_ac97(ac97, config)                             \
789         __regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config,      \
790                                 ac97, config)
791 
792 void regmap_exit(struct regmap *map);
793 int regmap_reinit_cache(struct regmap *map,
794                         const struct regmap_config *config);
795 struct regmap *dev_get_regmap(struct device *dev, const char *name);
796 struct device *regmap_get_device(struct regmap *map);
797 int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
798 int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val);
799 int regmap_raw_write(struct regmap *map, unsigned int reg,
800                      const void *val, size_t val_len);
801 int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
802                         size_t val_count);
803 int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs,
804                         int num_regs);
805 int regmap_multi_reg_write_bypassed(struct regmap *map,
806                                     const struct reg_sequence *regs,
807                                     int num_regs);
808 int regmap_raw_write_async(struct regmap *map, unsigned int reg,
809                            const void *val, size_t val_len);
810 int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
811 int regmap_raw_read(struct regmap *map, unsigned int reg,
812                     void *val, size_t val_len);
813 int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
814                      size_t val_count);
815 int regmap_update_bits_base(struct regmap *map, unsigned int reg,
816                             unsigned int mask, unsigned int val,
817                             bool *change, bool async, bool force);
818 int regmap_get_val_bytes(struct regmap *map);
819 int regmap_get_max_register(struct regmap *map);
820 int regmap_get_reg_stride(struct regmap *map);
821 int regmap_async_complete(struct regmap *map);
822 bool regmap_can_raw_write(struct regmap *map);
823 size_t regmap_get_raw_read_max(struct regmap *map);
824 size_t regmap_get_raw_write_max(struct regmap *map);
825 
826 int regcache_sync(struct regmap *map);
827 int regcache_sync_region(struct regmap *map, unsigned int min,
828                          unsigned int max);
829 int regcache_drop_region(struct regmap *map, unsigned int min,
830                          unsigned int max);
831 void regcache_cache_only(struct regmap *map, bool enable);
832 void regcache_cache_bypass(struct regmap *map, bool enable);
833 void regcache_mark_dirty(struct regmap *map);
834 
835 bool regmap_check_range_table(struct regmap *map, unsigned int reg,
836                               const struct regmap_access_table *table);
837 
838 int regmap_register_patch(struct regmap *map, const struct reg_sequence *regs,
839                           int num_regs);
840 int regmap_parse_val(struct regmap *map, const void *buf,
841                                 unsigned int *val);
842 
843 static inline bool regmap_reg_in_range(unsigned int reg,
844                                        const struct regmap_range *range)
845 {
846         return reg >= range->range_min && reg <= range->range_max;
847 }
848 
849 bool regmap_reg_in_ranges(unsigned int reg,
850                           const struct regmap_range *ranges,
851                           unsigned int nranges);
852 
853 /**
854  * struct reg_field - Description of an register field
855  *
856  * @reg: Offset of the register within the regmap bank
857  * @lsb: lsb of the register field.
858  * @msb: msb of the register field.
859  * @id_size: port size if it has some ports
860  * @id_offset: address offset for each ports
861  */
862 struct reg_field {
863         unsigned int reg;
864         unsigned int lsb;
865         unsigned int msb;
866         unsigned int id_size;
867         unsigned int id_offset;
868 };
869 
870 #define REG_FIELD(_reg, _lsb, _msb) {           \
871                                 .reg = _reg,    \
872                                 .lsb = _lsb,    \
873                                 .msb = _msb,    \
874                                 }
875 
876 struct regmap_field *regmap_field_alloc(struct regmap *regmap,
877                 struct reg_field reg_field);
878 void regmap_field_free(struct regmap_field *field);
879 
880 struct regmap_field *devm_regmap_field_alloc(struct device *dev,
881                 struct regmap *regmap, struct reg_field reg_field);
882 void devm_regmap_field_free(struct device *dev, struct regmap_field *field);
883 
884 int regmap_field_read(struct regmap_field *field, unsigned int *val);
885 int regmap_field_update_bits_base(struct regmap_field *field,
886                                   unsigned int mask, unsigned int val,
887                                   bool *change, bool async, bool force);
888 int regmap_fields_read(struct regmap_field *field, unsigned int id,
889                        unsigned int *val);
890 int regmap_fields_update_bits_base(struct regmap_field *field,  unsigned int id,
891                                    unsigned int mask, unsigned int val,
892                                    bool *change, bool async, bool force);
893 
894 /**
895  * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip.
896  *
897  * @reg_offset: Offset of the status/mask register within the bank
898  * @mask:       Mask used to flag/control the register.
899  * @type_reg_offset: Offset register for the irq type setting.
900  * @type_rising_mask: Mask bit to configure RISING type irq.
901  * @type_falling_mask: Mask bit to configure FALLING type irq.
902  */
903 struct regmap_irq {
904         unsigned int reg_offset;
905         unsigned int mask;
906         unsigned int type_reg_offset;
907         unsigned int type_rising_mask;
908         unsigned int type_falling_mask;
909 };
910 
911 #define REGMAP_IRQ_REG(_irq, _off, _mask)               \
912         [_irq] = { .reg_offset = (_off), .mask = (_mask) }
913 
914 /**
915  * struct regmap_irq_chip - Description of a generic regmap irq_chip.
916  *
917  * @name:        Descriptive name for IRQ controller.
918  *
919  * @status_base: Base status register address.
920  * @mask_base:   Base mask register address.
921  * @mask_writeonly: Base mask register is write only.
922  * @unmask_base:  Base unmask register address. for chips who have
923  *                separate mask and unmask registers
924  * @ack_base:    Base ack address. If zero then the chip is clear on read.
925  *               Using zero value is possible with @use_ack bit.
926  * @wake_base:   Base address for wake enables.  If zero unsupported.
927  * @type_base:   Base address for irq type.  If zero unsupported.
928  * @irq_reg_stride:  Stride to use for chips where registers are not contiguous.
929  * @init_ack_masked: Ack all masked interrupts once during initalization.
930  * @mask_invert: Inverted mask register: cleared bits are masked out.
931  * @use_ack:     Use @ack register even if it is zero.
932  * @ack_invert:  Inverted ack register: cleared bits for ack.
933  * @wake_invert: Inverted wake register: cleared bits are wake enabled.
934  * @type_invert: Invert the type flags.
935  * @runtime_pm:  Hold a runtime PM lock on the device when accessing it.
936  *
937  * @num_regs:    Number of registers in each control bank.
938  * @irqs:        Descriptors for individual IRQs.  Interrupt numbers are
939  *               assigned based on the index in the array of the interrupt.
940  * @num_irqs:    Number of descriptors.
941  * @num_type_reg:    Number of type registers.
942  * @type_reg_stride: Stride to use for chips where type registers are not
943  *                      contiguous.
944  * @handle_pre_irq:  Driver specific callback to handle interrupt from device
945  *                   before regmap_irq_handler process the interrupts.
946  * @handle_post_irq: Driver specific callback to handle interrupt from device
947  *                   after handling the interrupts in regmap_irq_handler().
948  * @irq_drv_data:    Driver specific IRQ data which is passed as parameter when
949  *                   driver specific pre/post interrupt handler is called.
950  *
951  * This is not intended to handle every possible interrupt controller, but
952  * it should handle a substantial proportion of those that are found in the
953  * wild.
954  */
955 struct regmap_irq_chip {
956         const char *name;
957 
958         unsigned int status_base;
959         unsigned int mask_base;
960         unsigned int unmask_base;
961         unsigned int ack_base;
962         unsigned int wake_base;
963         unsigned int type_base;
964         unsigned int irq_reg_stride;
965         bool mask_writeonly:1;
966         bool init_ack_masked:1;
967         bool mask_invert:1;
968         bool use_ack:1;
969         bool ack_invert:1;
970         bool wake_invert:1;
971         bool runtime_pm:1;
972         bool type_invert:1;
973 
974         int num_regs;
975 
976         const struct regmap_irq *irqs;
977         int num_irqs;
978 
979         int num_type_reg;
980         unsigned int type_reg_stride;
981 
982         int (*handle_pre_irq)(void *irq_drv_data);
983         int (*handle_post_irq)(void *irq_drv_data);
984         void *irq_drv_data;
985 };
986 
987 struct regmap_irq_chip_data;
988 
989 int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
990                         int irq_base, const struct regmap_irq_chip *chip,
991                         struct regmap_irq_chip_data **data);
992 void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data);
993 
994 int devm_regmap_add_irq_chip(struct device *dev, struct regmap *map, int irq,
995                              int irq_flags, int irq_base,
996                              const struct regmap_irq_chip *chip,
997                              struct regmap_irq_chip_data **data);
998 void devm_regmap_del_irq_chip(struct device *dev, int irq,
999                               struct regmap_irq_chip_data *data);
1000 
1001 int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data);
1002 int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq);
1003 struct irq_domain *regmap_irq_get_domain(struct regmap_irq_chip_data *data);
1004 
1005 #else
1006 
1007 /*
1008  * These stubs should only ever be called by generic code which has
1009  * regmap based facilities, if they ever get called at runtime
1010  * something is going wrong and something probably needs to select
1011  * REGMAP.
1012  */
1013 
1014 static inline int regmap_write(struct regmap *map, unsigned int reg,
1015                                unsigned int val)
1016 {
1017         WARN_ONCE(1, "regmap API is disabled");
1018         return -EINVAL;
1019 }
1020 
1021 static inline int regmap_write_async(struct regmap *map, unsigned int reg,
1022                                      unsigned int val)
1023 {
1024         WARN_ONCE(1, "regmap API is disabled");
1025         return -EINVAL;
1026 }
1027 
1028 static inline int regmap_raw_write(struct regmap *map, unsigned int reg,
1029                                    const void *val, size_t val_len)
1030 {
1031         WARN_ONCE(1, "regmap API is disabled");
1032         return -EINVAL;
1033 }
1034 
1035 static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg,
1036                                          const void *val, size_t val_len)
1037 {
1038         WARN_ONCE(1, "regmap API is disabled");
1039         return -EINVAL;
1040 }
1041 
1042 static inline int regmap_bulk_write(struct regmap *map, unsigned int reg,
1043                                     const void *val, size_t val_count)
1044 {
1045         WARN_ONCE(1, "regmap API is disabled");
1046         return -EINVAL;
1047 }
1048 
1049 static inline int regmap_read(struct regmap *map, unsigned int reg,
1050                               unsigned int *val)
1051 {
1052         WARN_ONCE(1, "regmap API is disabled");
1053         return -EINVAL;
1054 }
1055 
1056 static inline int regmap_raw_read(struct regmap *map, unsigned int reg,
1057                                   void *val, size_t val_len)
1058 {
1059         WARN_ONCE(1, "regmap API is disabled");
1060         return -EINVAL;
1061 }
1062 
1063 static inline int regmap_bulk_read(struct regmap *map, unsigned int reg,
1064                                    void *val, size_t val_count)
1065 {
1066         WARN_ONCE(1, "regmap API is disabled");
1067         return -EINVAL;
1068 }
1069 
1070 static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg,
1071                                           unsigned int mask, unsigned int val,
1072                                           bool *change, bool async, bool force)
1073 {
1074         WARN_ONCE(1, "regmap API is disabled");
1075         return -EINVAL;
1076 }
1077 
1078 static inline int regmap_field_update_bits_base(struct regmap_field *field,
1079                                         unsigned int mask, unsigned int val,
1080                                         bool *change, bool async, bool force)
1081 {
1082         WARN_ONCE(1, "regmap API is disabled");
1083         return -EINVAL;
1084 }
1085 
1086 static inline int regmap_fields_update_bits_base(struct regmap_field *field,
1087                                    unsigned int id,
1088                                    unsigned int mask, unsigned int val,
1089                                    bool *change, bool async, bool force)
1090 {
1091         WARN_ONCE(1, "regmap API is disabled");
1092         return -EINVAL;
1093 }
1094 
1095 static inline int regmap_get_val_bytes(struct regmap *map)
1096 {
1097         WARN_ONCE(1, "regmap API is disabled");
1098         return -EINVAL;
1099 }
1100 
1101 static inline int regmap_get_max_register(struct regmap *map)
1102 {
1103         WARN_ONCE(1, "regmap API is disabled");
1104         return -EINVAL;
1105 }
1106 
1107 static inline int regmap_get_reg_stride(struct regmap *map)
1108 {
1109         WARN_ONCE(1, "regmap API is disabled");
1110         return -EINVAL;
1111 }
1112 
1113 static inline int regcache_sync(struct regmap *map)
1114 {
1115         WARN_ONCE(1, "regmap API is disabled");
1116         return -EINVAL;
1117 }
1118 
1119 static inline int regcache_sync_region(struct regmap *map, unsigned int min,
1120                                        unsigned int max)
1121 {
1122         WARN_ONCE(1, "regmap API is disabled");
1123         return -EINVAL;
1124 }
1125 
1126 static inline int regcache_drop_region(struct regmap *map, unsigned int min,
1127                                        unsigned int max)
1128 {
1129         WARN_ONCE(1, "regmap API is disabled");
1130         return -EINVAL;
1131 }
1132 
1133 static inline void regcache_cache_only(struct regmap *map, bool enable)
1134 {
1135         WARN_ONCE(1, "regmap API is disabled");
1136 }
1137 
1138 static inline void regcache_cache_bypass(struct regmap *map, bool enable)
1139 {
1140         WARN_ONCE(1, "regmap API is disabled");
1141 }
1142 
1143 static inline void regcache_mark_dirty(struct regmap *map)
1144 {
1145         WARN_ONCE(1, "regmap API is disabled");
1146 }
1147 
1148 static inline void regmap_async_complete(struct regmap *map)
1149 {
1150         WARN_ONCE(1, "regmap API is disabled");
1151 }
1152 
1153 static inline int regmap_register_patch(struct regmap *map,
1154                                         const struct reg_sequence *regs,
1155                                         int num_regs)
1156 {
1157         WARN_ONCE(1, "regmap API is disabled");
1158         return -EINVAL;
1159 }
1160 
1161 static inline int regmap_parse_val(struct regmap *map, const void *buf,
1162                                 unsigned int *val)
1163 {
1164         WARN_ONCE(1, "regmap API is disabled");
1165         return -EINVAL;
1166 }
1167 
1168 static inline struct regmap *dev_get_regmap(struct device *dev,
1169                                             const char *name)
1170 {
1171         return NULL;
1172 }
1173 
1174 static inline struct device *regmap_get_device(struct regmap *map)
1175 {
1176         WARN_ONCE(1, "regmap API is disabled");
1177         return NULL;
1178 }
1179 
1180 #endif
1181 
1182 #endif
1183 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp