1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
use core::marker;
#[doc = " Raw register type (`u8`, `u16`, `u32`, ...)"]
pub trait RawReg: Copy + Default + From<bool> + core::ops::BitOr<Output = Self> + core::ops::BitAnd<Output = Self> + core::ops::BitOrAssign + core::ops::BitAndAssign + core::ops::Not<Output = Self> + core::ops::Shl<u8, Output = Self> {
    #[doc = " Mask for bits of width `WI`"]
    fn mask<const WI: u8>() -> Self;
    #[doc = " Mask for bits of width 1"]
    fn one() -> Self;
}
macro_rules! raw_reg {
    ($ U : ty , $ size : literal , $ mask : ident) => {
        impl RawReg for $U {
            #[inline(always)]
            fn mask<const WI: u8>() -> Self {
                $mask::<WI>()
            }
            #[inline(always)]
            fn one() -> Self {
                1
            }
        }
        const fn $mask<const WI: u8>() -> $U {
            <$U>::MAX >> ($size - WI)
        }
        impl FieldSpec for $U {
            type Ux = $U;
        }
    };
}
raw_reg!(u8, 8, mask_u8);
raw_reg!(u16, 16, mask_u16);
raw_reg!(u32, 32, mask_u32);
raw_reg!(u64, 64, mask_u64);
#[doc = " Raw register type"]
pub trait RegisterSpec {
    #[doc = " Raw register type (`u8`, `u16`, `u32`, ...)."]
    type Ux: RawReg;
}
#[doc = " Raw field type"]
pub trait FieldSpec: Sized {
    #[doc = " Raw field type (`u8`, `u16`, `u32`, ...)."]
    type Ux: Copy + PartialEq + From<Self>;
}
#[doc = " Marker for fields with fixed values"]
pub trait IsEnum: FieldSpec {}
#[doc = " Trait implemented by readable registers to enable the `read` method."]
#[doc = ""]
#[doc = " Registers marked with `Writable` can be also be `modify`'ed."]
pub trait Readable: RegisterSpec {}
#[doc = " Trait implemented by writeable registers."]
#[doc = ""]
#[doc = " This enables the  `write`, `write_with_zero` and `reset` methods."]
#[doc = ""]
#[doc = " Registers marked with `Readable` can be also be `modify`'ed."]
pub trait Writable: RegisterSpec {
    #[doc = " Is it safe to write any bits to register"]
    type Safety;
    #[doc = " Specifies the register bits that are not changed if you pass `1` and are changed if you pass `0`"]
    const ZERO_TO_MODIFY_FIELDS_BITMAP: Self::Ux;
    #[doc = " Specifies the register bits that are not changed if you pass `0` and are changed if you pass `1`"]
    const ONE_TO_MODIFY_FIELDS_BITMAP: Self::Ux;
}
#[doc = " Reset value of the register."]
#[doc = ""]
#[doc = " This value is the initial value for the `write` method. It can also be directly written to the"]
#[doc = " register by using the `reset` method."]
pub trait Resettable: RegisterSpec {
    #[doc = " Reset value of the register."]
    const RESET_VALUE: Self::Ux;
    #[doc = " Reset value of the register."]
    #[inline(always)]
    fn reset_value() -> Self::Ux {
        Self::RESET_VALUE
    }
}
#[doc = " This structure provides volatile access to registers."]
#[repr(transparent)]
pub struct Reg<REG: RegisterSpec> {
    register: vcell::VolatileCell<REG::Ux>,
    _marker: marker::PhantomData<REG>,
}
unsafe impl<REG: RegisterSpec> Send for Reg<REG> where REG::Ux: Send {}
impl<REG: RegisterSpec> Reg<REG> {
    #[doc = " Returns the underlying memory address of register."]
    #[doc = ""]
    #[doc = " ```ignore"]
    #[doc = " let reg_ptr = periph.reg.as_ptr();"]
    #[doc = " ```"]
    #[inline(always)]
    pub fn as_ptr(&self) -> *mut REG::Ux {
        self.register.as_ptr()
    }
}
impl<REG: Readable> Reg<REG> {
    #[doc = " Reads the contents of a `Readable` register."]
    #[doc = ""]
    #[doc = " You can read the raw contents of a register by using `bits`:"]
    #[doc = " ```ignore"]
    #[doc = " let bits = periph.reg.read().bits();"]
    #[doc = " ```"]
    #[doc = " or get the content of a particular field of a register:"]
    #[doc = " ```ignore"]
    #[doc = " let reader = periph.reg.read();"]
    #[doc = " let bits = reader.field1().bits();"]
    #[doc = " let flag = reader.field2().bit_is_set();"]
    #[doc = " ```"]
    #[inline(always)]
    pub fn read(&self) -> R<REG> {
        R { bits: self.register.get(), _reg: marker::PhantomData }
    }
}
impl<REG: Resettable + Writable> Reg<REG> {
    #[doc = " Writes the reset value to `Writable` register."]
    #[doc = ""]
    #[doc = " Resets the register to its initial state."]
    #[inline(always)]
    pub fn reset(&self) {
        self.register.set(REG::RESET_VALUE)
    }
    #[doc = " Writes bits to a `Writable` register."]
    #[doc = ""]
    #[doc = " You can write raw bits into a register:"]
    #[doc = " ```ignore"]
    #[doc = " periph.reg.write(|w| unsafe { w.bits(rawbits) });"]
    #[doc = " ```"]
    #[doc = " or write only the fields you need:"]
    #[doc = " ```ignore"]
    #[doc = " periph.reg.write(|w| w"]
    #[doc = "     .field1().bits(newfield1bits)"]
    #[doc = "     .field2().set_bit()"]
    #[doc = "     .field3().variant(VARIANT)"]
    #[doc = " );"]
    #[doc = " ```"]
    #[doc = " or an alternative way of saying the same:"]
    #[doc = " ```ignore"]
    #[doc = " periph.reg.write(|w| {"]
    #[doc = "     w.field1().bits(newfield1bits);"]
    #[doc = "     w.field2().set_bit();"]
    #[doc = "     w.field3().variant(VARIANT)"]
    #[doc = " });"]
    #[doc = " ```"]
    #[doc = " In the latter case, other fields will be set to their reset value."]
    #[inline(always)]
    pub fn write<F>(&self, f: F)
    where
        F: FnOnce(&mut W<REG>) -> &mut W<REG>,
    {
        self.register.set(f(&mut W { bits: REG::RESET_VALUE & !REG::ONE_TO_MODIFY_FIELDS_BITMAP | REG::ZERO_TO_MODIFY_FIELDS_BITMAP, _reg: marker::PhantomData }).bits);
    }
}
impl<REG: Writable> Reg<REG> {
    #[doc = " Writes 0 to a `Writable` register."]
    #[doc = ""]
    #[doc = " Similar to `write`, but unused bits will contain 0."]
    #[doc = ""]
    #[doc = " # Safety"]
    #[doc = ""]
    #[doc = " Unsafe to use with registers which don't allow to write 0."]
    #[inline(always)]
    pub unsafe fn write_with_zero<F>(&self, f: F)
    where
        F: FnOnce(&mut W<REG>) -> &mut W<REG>,
    {
        self.register.set(f(&mut W { bits: REG::Ux::default(), _reg: marker::PhantomData }).bits);
    }
}
impl<REG: Readable + Writable> Reg<REG> {
    #[doc = " Modifies the contents of the register by reading and then writing it."]
    #[doc = ""]
    #[doc = " E.g. to do a read-modify-write sequence to change parts of a register:"]
    #[doc = " ```ignore"]
    #[doc = " periph.reg.modify(|r, w| unsafe { w.bits("]
    #[doc = "    r.bits() | 3"]
    #[doc = " ) });"]
    #[doc = " ```"]
    #[doc = " or"]
    #[doc = " ```ignore"]
    #[doc = " periph.reg.modify(|_, w| w"]
    #[doc = "     .field1().bits(newfield1bits)"]
    #[doc = "     .field2().set_bit()"]
    #[doc = "     .field3().variant(VARIANT)"]
    #[doc = " );"]
    #[doc = " ```"]
    #[doc = " or an alternative way of saying the same:"]
    #[doc = " ```ignore"]
    #[doc = " periph.reg.modify(|_, w| {"]
    #[doc = "     w.field1().bits(newfield1bits);"]
    #[doc = "     w.field2().set_bit();"]
    #[doc = "     w.field3().variant(VARIANT)"]
    #[doc = " });"]
    #[doc = " ```"]
    #[doc = " Other fields will have the value they had before the call to `modify`."]
    #[inline(always)]
    pub fn modify<F>(&self, f: F)
    where
        for<'w> F: FnOnce(&R<REG>, &'w mut W<REG>) -> &'w mut W<REG>,
    {
        let bits = self.register.get();
        self.register.set(f(&R { bits, _reg: marker::PhantomData }, &mut W { bits: bits & !REG::ONE_TO_MODIFY_FIELDS_BITMAP | REG::ZERO_TO_MODIFY_FIELDS_BITMAP, _reg: marker::PhantomData }).bits);
    }
}
#[doc(hidden)]
pub mod raw;
#[doc = " Register reader."]
#[doc = ""]
#[doc = " Result of the `read` methods of registers. Also used as a closure argument in the `modify`"]
#[doc = " method."]
pub type R<REG> = raw::R<REG>;
impl<REG: RegisterSpec> R<REG> {
    #[doc = " Reads raw bits from register."]
    #[inline(always)]
    pub const fn bits(&self) -> REG::Ux {
        self.bits
    }
}
impl<REG: RegisterSpec, FI> PartialEq<FI> for R<REG>
where
    REG::Ux: PartialEq,
    FI: Copy,
    REG::Ux: From<FI>,
{
    #[inline(always)]
    fn eq(&self, other: &FI) -> bool {
        self.bits.eq(&REG::Ux::from(*other))
    }
}
#[doc = " Register writer."]
#[doc = ""]
#[doc = " Used as an argument to the closures in the `write` and `modify` methods of the register."]
pub type W<REG> = raw::W<REG>;
impl<REG: Writable> W<REG> {
    #[doc = " Writes raw bits to the register."]
    #[doc = ""]
    #[doc = " # Safety"]
    #[doc = ""]
    #[doc = " Passing incorrect value can cause undefined behaviour. See reference manual"]
    #[inline(always)]
    pub unsafe fn bits(&mut self, bits: REG::Ux) -> &mut Self {
        self.bits = bits;
        self
    }
}
impl<REG> W<REG>
where
    REG: Writable<Safety = Safe>,
{
    #[doc = " Writes raw bits to the register."]
    #[inline(always)]
    pub fn set(&mut self, bits: REG::Ux) -> &mut Self {
        self.bits = bits;
        self
    }
}
#[doc = " Field reader."]
#[doc = ""]
#[doc = " Result of the `read` methods of fields."]
pub type FieldReader<FI = u8> = raw::FieldReader<FI>;
#[doc = " Bit-wise field reader"]
pub type BitReader<FI = bool> = raw::BitReader<FI>;
impl<FI: FieldSpec> FieldReader<FI> {
    #[doc = " Reads raw bits from field."]
    #[inline(always)]
    pub const fn bits(&self) -> FI::Ux {
        self.bits
    }
}
impl<FI> PartialEq<FI> for FieldReader<FI>
where
    FI: FieldSpec + Copy,
{
    #[inline(always)]
    fn eq(&self, other: &FI) -> bool {
        self.bits.eq(&FI::Ux::from(*other))
    }
}
impl<FI> PartialEq<FI> for BitReader<FI>
where
    FI: Copy,
    bool: From<FI>,
{
    #[inline(always)]
    fn eq(&self, other: &FI) -> bool {
        self.bits.eq(&bool::from(*other))
    }
}
impl<FI> BitReader<FI> {
    #[doc = " Value of the field as raw bits."]
    #[inline(always)]
    pub const fn bit(&self) -> bool {
        self.bits
    }
    #[doc = " Returns `true` if the bit is clear (0)."]
    #[inline(always)]
    pub const fn bit_is_clear(&self) -> bool {
        !self.bit()
    }
    #[doc = " Returns `true` if the bit is set (1)."]
    #[inline(always)]
    pub const fn bit_is_set(&self) -> bool {
        self.bit()
    }
}
#[doc = " Marker for register/field writers which can take any value of specified width"]
pub struct Safe;
#[doc = " You should check that value is allowed to pass to register/field writer marked with this"]
pub struct Unsafe;
#[doc = " Marker for field writers are safe to write in specified inclusive range"]
pub struct Range<const MIN: u64, const MAX: u64>;
#[doc = " Marker for field writers are safe to write in specified inclusive range"]
pub struct RangeFrom<const MIN: u64>;
#[doc = " Marker for field writers are safe to write in specified inclusive range"]
pub struct RangeTo<const MAX: u64>;
#[doc = " Write field Proxy"]
pub type FieldWriter<'a, REG, const WI: u8, FI = u8, Safety = Unsafe> = raw::FieldWriter<'a, REG, WI, FI, Safety>;
impl<'a, REG, const WI: u8, FI, Safety> FieldWriter<'a, REG, WI, FI, Safety>
where
    REG: Writable + RegisterSpec,
    FI: FieldSpec,
{
    #[doc = " Field width"]
    pub const WIDTH: u8 = WI;
    #[doc = " Field width"]
    #[inline(always)]
    pub const fn width(&self) -> u8 {
        WI
    }
    #[doc = " Field offset"]
    #[inline(always)]
    pub const fn offset(&self) -> u8 {
        self.o
    }
}
impl<'a, REG, const WI: u8, FI, Safety> FieldWriter<'a, REG, WI, FI, Safety>
where
    REG: Writable + RegisterSpec,
    FI: FieldSpec,
    REG::Ux: From<FI::Ux>,
{
    #[doc = " Writes raw bits to the field"]
    #[doc = ""]
    #[doc = " # Safety"]
    #[doc = ""]
    #[doc = " Passing incorrect value can cause undefined behaviour. See reference manual"]
    #[inline(always)]
    pub unsafe fn bits(self, value: FI::Ux) -> &'a mut W<REG> {
        self.w.bits &= !(REG::Ux::mask::<WI>() << self.o);
        self.w.bits |= (REG::Ux::from(value) & REG::Ux::mask::<WI>()) << self.o;
        self.w
    }
}
impl<'a, REG, const WI: u8, FI> FieldWriter<'a, REG, WI, FI, Safe>
where
    REG: Writable + RegisterSpec,
    FI: FieldSpec,
    REG::Ux: From<FI::Ux>,
{
    #[doc = " Writes raw bits to the field"]
    #[inline(always)]
    pub fn set(self, value: FI::Ux) -> &'a mut W<REG> {
        unsafe { self.bits(value) }
    }
}
impl<'a, REG, const WI: u8, FI, const MIN: u64, const MAX: u64> FieldWriter<'a, REG, WI, FI, Range<MIN, MAX>>
where
    REG: Writable + RegisterSpec,
    FI: FieldSpec,
    REG::Ux: From<FI::Ux>,
    u64: From<FI::Ux>,
{
    #[doc = " Writes raw bits to the field"]
    #[inline(always)]
    pub fn set(self, value: FI::Ux) -> &'a mut W<REG> {
        {
            let value = u64::from(value);
            assert!(value >= MIN && value <= MAX);
        }
        unsafe { self.bits(value) }
    }
}
impl<'a, REG, const WI: u8, FI, const MIN: u64> FieldWriter<'a, REG, WI, FI, RangeFrom<MIN>>
where
    REG: Writable + RegisterSpec,
    FI: FieldSpec,
    REG::Ux: From<FI::Ux>,
    u64: From<FI::Ux>,
{
    #[doc = " Writes raw bits to the field"]
    #[inline(always)]
    pub fn set(self, value: FI::Ux) -> &'a mut W<REG> {
        {
            let value = u64::from(value);
            assert!(value >= MIN);
        }
        unsafe { self.bits(value) }
    }
}
impl<'a, REG, const WI: u8, FI, const MAX: u64> FieldWriter<'a, REG, WI, FI, RangeTo<MAX>>
where
    REG: Writable + RegisterSpec,
    FI: FieldSpec,
    REG::Ux: From<FI::Ux>,
    u64: From<FI::Ux>,
{
    #[doc = " Writes raw bits to the field"]
    #[inline(always)]
    pub fn set(self, value: FI::Ux) -> &'a mut W<REG> {
        {
            let value = u64::from(value);
            assert!(value <= MAX);
        }
        unsafe { self.bits(value) }
    }
}
impl<'a, REG, const WI: u8, FI, Safety> FieldWriter<'a, REG, WI, FI, Safety>
where
    REG: Writable + RegisterSpec,
    FI: IsEnum,
    REG::Ux: From<FI::Ux>,
{
    #[doc = " Writes `variant` to the field"]
    #[inline(always)]
    pub fn variant(self, variant: FI) -> &'a mut W<REG> {
        unsafe { self.bits(FI::Ux::from(variant)) }
    }
}
macro_rules! bit_proxy {
    ($ writer : ident , $ mwv : ident) => {
        #[doc(hidden)]
        pub struct $mwv;
        #[doc = " Bit-wise write field proxy"]
        pub type $writer<'a, REG, FI = bool> = raw::BitWriter<'a, REG, FI, $mwv>;
        impl<'a, REG, FI> $writer<'a, REG, FI>
        where
            REG: Writable + RegisterSpec,
            bool: From<FI>,
        {
            #[doc = " Field width"]
            pub const WIDTH: u8 = 1;
            #[doc = " Field width"]
            #[inline(always)]
            pub const fn width(&self) -> u8 {
                Self::WIDTH
            }
            #[doc = " Field offset"]
            #[inline(always)]
            pub const fn offset(&self) -> u8 {
                self.o
            }
            #[doc = " Writes bit to the field"]
            #[inline(always)]
            pub fn bit(self, value: bool) -> &'a mut W<REG> {
                self.w.bits &= !(REG::Ux::one() << self.o);
                self.w.bits |= (REG::Ux::from(value) & REG::Ux::one()) << self.o;
                self.w
            }
            #[doc = " Writes `variant` to the field"]
            #[inline(always)]
            pub fn variant(self, variant: FI) -> &'a mut W<REG> {
                self.bit(bool::from(variant))
            }
        }
    };
}
bit_proxy!(BitWriter, BitM);
bit_proxy!(BitWriter1S, Bit1S);
bit_proxy!(BitWriter0C, Bit0C);
bit_proxy!(BitWriter1C, Bit1C);
bit_proxy!(BitWriter0S, Bit0S);
bit_proxy!(BitWriter1T, Bit1T);
bit_proxy!(BitWriter0T, Bit0T);
impl<'a, REG, FI> BitWriter<'a, REG, FI>
where
    REG: Writable + RegisterSpec,
    bool: From<FI>,
{
    #[doc = " Sets the field bit"]
    #[inline(always)]
    pub fn set_bit(self) -> &'a mut W<REG> {
        self.w.bits |= REG::Ux::one() << self.o;
        self.w
    }
    #[doc = " Clears the field bit"]
    #[inline(always)]
    pub fn clear_bit(self) -> &'a mut W<REG> {
        self.w.bits &= !(REG::Ux::one() << self.o);
        self.w
    }
}
impl<'a, REG, FI> BitWriter1S<'a, REG, FI>
where
    REG: Writable + RegisterSpec,
    bool: From<FI>,
{
    #[doc = " Sets the field bit"]
    #[inline(always)]
    pub fn set_bit(self) -> &'a mut W<REG> {
        self.w.bits |= REG::Ux::one() << self.o;
        self.w
    }
}
impl<'a, REG, FI> BitWriter0C<'a, REG, FI>
where
    REG: Writable + RegisterSpec,
    bool: From<FI>,
{
    #[doc = " Clears the field bit"]
    #[inline(always)]
    pub fn clear_bit(self) -> &'a mut W<REG> {
        self.w.bits &= !(REG::Ux::one() << self.o);
        self.w
    }
}
impl<'a, REG, FI> BitWriter1C<'a, REG, FI>
where
    REG: Writable + RegisterSpec,
    bool: From<FI>,
{
    #[doc = "Clears the field bit by passing one"]
    #[inline(always)]
    pub fn clear_bit_by_one(self) -> &'a mut W<REG> {
        self.w.bits |= REG::Ux::one() << self.o;
        self.w
    }
}
impl<'a, REG, FI> BitWriter0S<'a, REG, FI>
where
    REG: Writable + RegisterSpec,
    bool: From<FI>,
{
    #[doc = "Sets the field bit by passing zero"]
    #[inline(always)]
    pub fn set_bit_by_zero(self) -> &'a mut W<REG> {
        self.w.bits &= !(REG::Ux::one() << self.o);
        self.w
    }
}
impl<'a, REG, FI> BitWriter1T<'a, REG, FI>
where
    REG: Writable + RegisterSpec,
    bool: From<FI>,
{
    #[doc = "Toggle the field bit by passing one"]
    #[inline(always)]
    pub fn toggle_bit(self) -> &'a mut W<REG> {
        self.w.bits |= REG::Ux::one() << self.o;
        self.w
    }
}
impl<'a, REG, FI> BitWriter0T<'a, REG, FI>
where
    REG: Writable + RegisterSpec,
    bool: From<FI>,
{
    #[doc = "Toggle the field bit by passing zero"]
    #[inline(always)]
    pub fn toggle_bit(self) -> &'a mut W<REG> {
        self.w.bits &= !(REG::Ux::one() << self.o);
        self.w
    }
}