diff options
Diffstat (limited to 'src/reset.rs')
| -rw-r--r-- | src/reset.rs | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/src/reset.rs b/src/reset.rs deleted file mode 100644 index 1c131d1cc..000000000 --- a/src/reset.rs +++ /dev/null | |||
| @@ -1,112 +0,0 @@ | |||
| 1 | //! Reset control helpers built on PAC field writers. | ||
| 2 | use crate::pac; | ||
| 3 | |||
| 4 | /// Trait describing a reset line that can be asserted/deasserted. | ||
| 5 | pub trait ResetLine { | ||
| 6 | /// Drive the peripheral out of reset. | ||
| 7 | unsafe fn release(mrcc: &pac::mrcc0::RegisterBlock); | ||
| 8 | |||
| 9 | /// Drive the peripheral into reset. | ||
| 10 | unsafe fn assert(mrcc: &pac::mrcc0::RegisterBlock); | ||
| 11 | |||
| 12 | /// Check whether the peripheral is currently released. | ||
| 13 | fn is_released(mrcc: &pac::mrcc0::RegisterBlock) -> bool; | ||
| 14 | } | ||
| 15 | |||
| 16 | /// Release a reset line for the given peripheral set. | ||
| 17 | #[inline] | ||
| 18 | pub unsafe fn release<R: ResetLine>(peripherals: &pac::Peripherals) { | ||
| 19 | R::release(&peripherals.mrcc0); | ||
| 20 | } | ||
| 21 | |||
| 22 | /// Assert a reset line for the given peripheral set. | ||
| 23 | #[inline] | ||
| 24 | pub unsafe fn assert<R: ResetLine>(peripherals: &pac::Peripherals) { | ||
| 25 | R::assert(&peripherals.mrcc0); | ||
| 26 | } | ||
| 27 | |||
| 28 | /// Pulse a reset line (assert then release) with a short delay. | ||
| 29 | #[inline] | ||
| 30 | pub unsafe fn pulse<R: ResetLine>(peripherals: &pac::Peripherals) { | ||
| 31 | let mrcc = &peripherals.mrcc0; | ||
| 32 | R::assert(mrcc); | ||
| 33 | cortex_m::asm::nop(); | ||
| 34 | cortex_m::asm::nop(); | ||
| 35 | R::release(mrcc); | ||
| 36 | } | ||
| 37 | |||
| 38 | macro_rules! impl_reset_line { | ||
| 39 | ($name:ident, $reg:ident, $field:ident) => { | ||
| 40 | pub struct $name; | ||
| 41 | |||
| 42 | impl ResetLine for $name { | ||
| 43 | #[inline] | ||
| 44 | unsafe fn release(mrcc: &pac::mrcc0::RegisterBlock) { | ||
| 45 | mrcc.$reg().modify(|_, w| w.$field().enabled()); | ||
| 46 | } | ||
| 47 | |||
| 48 | #[inline] | ||
| 49 | unsafe fn assert(mrcc: &pac::mrcc0::RegisterBlock) { | ||
| 50 | mrcc.$reg().modify(|_, w| w.$field().disabled()); | ||
| 51 | } | ||
| 52 | |||
| 53 | #[inline] | ||
| 54 | fn is_released(mrcc: &pac::mrcc0::RegisterBlock) -> bool { | ||
| 55 | mrcc.$reg().read().$field().is_enabled() | ||
| 56 | } | ||
| 57 | } | ||
| 58 | }; | ||
| 59 | } | ||
| 60 | |||
| 61 | pub mod line { | ||
| 62 | use super::*; | ||
| 63 | |||
| 64 | impl_reset_line!(Port2, mrcc_glb_rst1, port2); | ||
| 65 | impl_reset_line!(Port3, mrcc_glb_rst1, port3); | ||
| 66 | impl_reset_line!(Gpio3, mrcc_glb_rst2, gpio3); | ||
| 67 | impl_reset_line!(Lpuart2, mrcc_glb_rst0, lpuart2); | ||
| 68 | impl_reset_line!(Ostimer0, mrcc_glb_rst1, ostimer0); | ||
| 69 | impl_reset_line!(Port1, mrcc_glb_rst1, port1); | ||
| 70 | impl_reset_line!(Adc1, mrcc_glb_rst1, adc1); | ||
| 71 | } | ||
| 72 | |||
| 73 | #[inline] | ||
| 74 | pub unsafe fn release_reset_port2(peripherals: &pac::Peripherals) { | ||
| 75 | release::<line::Port2>(peripherals); | ||
| 76 | } | ||
| 77 | |||
| 78 | #[inline] | ||
| 79 | pub unsafe fn release_reset_port3(peripherals: &pac::Peripherals) { | ||
| 80 | release::<line::Port3>(peripherals); | ||
| 81 | } | ||
| 82 | |||
| 83 | #[inline] | ||
| 84 | pub unsafe fn release_reset_gpio3(peripherals: &pac::Peripherals) { | ||
| 85 | release::<line::Gpio3>(peripherals); | ||
| 86 | } | ||
| 87 | |||
| 88 | #[inline] | ||
| 89 | pub unsafe fn release_reset_lpuart2(peripherals: &pac::Peripherals) { | ||
| 90 | release::<line::Lpuart2>(peripherals); | ||
| 91 | } | ||
| 92 | |||
| 93 | #[inline] | ||
| 94 | pub unsafe fn release_reset_ostimer0(peripherals: &pac::Peripherals) { | ||
| 95 | release::<line::Ostimer0>(peripherals); | ||
| 96 | } | ||
| 97 | |||
| 98 | /// Convenience shim retained for existing call sites. | ||
| 99 | #[inline] | ||
| 100 | pub unsafe fn reset_ostimer0(peripherals: &pac::Peripherals) { | ||
| 101 | pulse::<line::Ostimer0>(peripherals); | ||
| 102 | } | ||
| 103 | |||
| 104 | #[inline] | ||
| 105 | pub unsafe fn release_reset_port1(peripherals: &pac::Peripherals) { | ||
| 106 | release::<line::Port1>(peripherals); | ||
| 107 | } | ||
| 108 | |||
| 109 | #[inline] | ||
| 110 | pub unsafe fn release_reset_adc1(peripherals: &pac::Peripherals) { | ||
| 111 | release::<line::Adc1>(peripherals); | ||
| 112 | } | ||
