Skip to content

Commit c5e342a

Browse files
bugadanibugadani
authored
Clean up gigantic GPIO eyesore (#2048)
1 parent 2dc285a commit c5e342a

File tree

2 files changed

+87
-310
lines changed

2 files changed

+87
-310
lines changed

‎esp-hal/src/soc/esp32/gpio.rs‎

Lines changed: 42 additions & 149 deletions
Original file line numberDiff line numberDiff line change
@@ -8,8 +8,7 @@
88
//!
99
//! Let's get through the functionality and configurations provided by this GPIO
1010
//! module:
11-
//! - `get_io_mux_reg(gpio_num: u8) -> &'static
12-
//! crate::peripherals::io_mux::GPIO0:`:
11+
//! - `get_io_mux_reg(gpio_num: u8) -> &'static io_mux::GPIO0:`:
1312
//! * This function returns a reference to the GPIO register associated
1413
//! with the given GPIO number. It uses unsafe code and transmutation to
1514
//! access the GPIO registers based on the provided GPIO number.
@@ -46,6 +45,8 @@
4645
//! registers for both the `PRO CPU` and `APP CPU`. The implementation uses the
4746
//! `gpio` peripheral to access the appropriate registers.
4847
48+
use core::mem::transmute;
49+
4950
use crate::{
5051
gpio::{
5152
AlternateFunction,
@@ -54,7 +55,7 @@ use crate::{
5455
InterruptStatusRegisterAccessBank0,
5556
InterruptStatusRegisterAccessBank1,
5657
},
57-
peripherals::GPIO,
58+
peripherals::{io_mux, GPIO, IO_MUX},
5859
Cpu,
5960
};
6061

@@ -72,155 +73,47 @@ pub(crate) const ZERO_INPUT: u8 = 0x30;
7273

7374
pub(crate) const GPIO_FUNCTION: AlternateFunction = AlternateFunction::Function2;
7475

75-
pub(crate) fn get_io_mux_reg(gpio_num: u8) -> &'static crate::peripherals::io_mux::GPIO0 {
76+
pub(crate) fn get_io_mux_reg(gpio_num: u8) -> &'static io_mux::GPIO0 {
7677
unsafe {
77-
let iomux = &*crate::peripherals::IO_MUX::PTR;
78+
let iomux = &*IO_MUX::PTR;
7879

7980
match gpio_num {
80-
0 => core::mem::transmute::<
81-
&'static crate::peripherals::io_mux::GPIO0,
82-
&'static crate::peripherals::io_mux::GPIO0,
83-
>(iomux.gpio0()),
84-
1 => core::mem::transmute::<
85-
&'static crate::peripherals::io_mux::GPIO1,
86-
&'static crate::peripherals::io_mux::GPIO0,
87-
>(iomux.gpio1()),
88-
2 => core::mem::transmute::<
89-
&'static crate::peripherals::io_mux::GPIO2,
90-
&'static crate::peripherals::io_mux::GPIO0,
91-
>(iomux.gpio2()),
92-
3 => core::mem::transmute::<
93-
&'static crate::peripherals::io_mux::GPIO3,
94-
&'static crate::peripherals::io_mux::GPIO0,
95-
>(iomux.gpio3()),
96-
4 => core::mem::transmute::<
97-
&'static crate::peripherals::io_mux::GPIO4,
98-
&'static crate::peripherals::io_mux::GPIO0,
99-
>(iomux.gpio4()),
100-
5 => core::mem::transmute::<
101-
&'static crate::peripherals::io_mux::GPIO5,
102-
&'static crate::peripherals::io_mux::GPIO0,
103-
>(iomux.gpio5()),
104-
6 => core::mem::transmute::<
105-
&'static crate::peripherals::io_mux::GPIO6,
106-
&'static crate::peripherals::io_mux::GPIO0,
107-
>(iomux.gpio6()),
108-
7 => core::mem::transmute::<
109-
&'static crate::peripherals::io_mux::GPIO7,
110-
&'static crate::peripherals::io_mux::GPIO0,
111-
>(iomux.gpio7()),
112-
8 => core::mem::transmute::<
113-
&'static crate::peripherals::io_mux::GPIO8,
114-
&'static crate::peripherals::io_mux::GPIO0,
115-
>(iomux.gpio8()),
116-
9 => core::mem::transmute::<
117-
&'static crate::peripherals::io_mux::GPIO9,
118-
&'static crate::peripherals::io_mux::GPIO0,
119-
>(iomux.gpio9()),
120-
10 => core::mem::transmute::<
121-
&'static crate::peripherals::io_mux::GPIO10,
122-
&'static crate::peripherals::io_mux::GPIO0,
123-
>(iomux.gpio10()),
124-
11 => core::mem::transmute::<
125-
&'static crate::peripherals::io_mux::GPIO11,
126-
&'static crate::peripherals::io_mux::GPIO0,
127-
>(iomux.gpio11()),
128-
12 => core::mem::transmute::<
129-
&'static crate::peripherals::io_mux::GPIO12,
130-
&'static crate::peripherals::io_mux::GPIO0,
131-
>(iomux.gpio12()),
132-
13 => core::mem::transmute::<
133-
&'static crate::peripherals::io_mux::GPIO13,
134-
&'static crate::peripherals::io_mux::GPIO0,
135-
>(iomux.gpio13()),
136-
14 => core::mem::transmute::<
137-
&'static crate::peripherals::io_mux::GPIO14,
138-
&'static crate::peripherals::io_mux::GPIO0,
139-
>(iomux.gpio14()),
140-
15 => core::mem::transmute::<
141-
&'static crate::peripherals::io_mux::GPIO15,
142-
&'static crate::peripherals::io_mux::GPIO0,
143-
>(iomux.gpio15()),
144-
16 => core::mem::transmute::<
145-
&'static crate::peripherals::io_mux::GPIO16,
146-
&'static crate::peripherals::io_mux::GPIO0,
147-
>(iomux.gpio16()),
148-
17 => core::mem::transmute::<
149-
&'static crate::peripherals::io_mux::GPIO17,
150-
&'static crate::peripherals::io_mux::GPIO0,
151-
>(iomux.gpio17()),
152-
18 => core::mem::transmute::<
153-
&'static crate::peripherals::io_mux::GPIO18,
154-
&'static crate::peripherals::io_mux::GPIO0,
155-
>(iomux.gpio18()),
156-
19 => core::mem::transmute::<
157-
&'static crate::peripherals::io_mux::GPIO19,
158-
&'static crate::peripherals::io_mux::GPIO0,
159-
>(iomux.gpio19()),
160-
20 => core::mem::transmute::<
161-
&'static crate::peripherals::io_mux::GPIO20,
162-
&'static crate::peripherals::io_mux::GPIO0,
163-
>(iomux.gpio20()),
164-
21 => core::mem::transmute::<
165-
&'static crate::peripherals::io_mux::GPIO21,
166-
&'static crate::peripherals::io_mux::GPIO0,
167-
>(iomux.gpio21()),
168-
22 => core::mem::transmute::<
169-
&'static crate::peripherals::io_mux::GPIO22,
170-
&'static crate::peripherals::io_mux::GPIO0,
171-
>(iomux.gpio22()),
172-
23 => core::mem::transmute::<
173-
&'static crate::peripherals::io_mux::GPIO23,
174-
&'static crate::peripherals::io_mux::GPIO0,
175-
>(iomux.gpio23()),
176-
24 => core::mem::transmute::<
177-
&'static crate::peripherals::io_mux::GPIO24,
178-
&'static crate::peripherals::io_mux::GPIO0,
179-
>(iomux.gpio24()),
180-
25 => core::mem::transmute::<
181-
&'static crate::peripherals::io_mux::GPIO25,
182-
&'static crate::peripherals::io_mux::GPIO0,
183-
>(iomux.gpio25()),
184-
26 => core::mem::transmute::<
185-
&'static crate::peripherals::io_mux::GPIO26,
186-
&'static crate::peripherals::io_mux::GPIO0,
187-
>(iomux.gpio26()),
188-
27 => core::mem::transmute::<
189-
&'static crate::peripherals::io_mux::GPIO27,
190-
&'static crate::peripherals::io_mux::GPIO0,
191-
>(iomux.gpio27()),
192-
32 => core::mem::transmute::<
193-
&'static crate::peripherals::io_mux::GPIO32,
194-
&'static crate::peripherals::io_mux::GPIO0,
195-
>(iomux.gpio32()),
196-
33 => core::mem::transmute::<
197-
&'static crate::peripherals::io_mux::GPIO33,
198-
&'static crate::peripherals::io_mux::GPIO0,
199-
>(iomux.gpio33()),
200-
34 => core::mem::transmute::<
201-
&'static crate::peripherals::io_mux::GPIO34,
202-
&'static crate::peripherals::io_mux::GPIO0,
203-
>(iomux.gpio34()),
204-
35 => core::mem::transmute::<
205-
&'static crate::peripherals::io_mux::GPIO35,
206-
&'static crate::peripherals::io_mux::GPIO0,
207-
>(iomux.gpio35()),
208-
36 => core::mem::transmute::<
209-
&'static crate::peripherals::io_mux::GPIO36,
210-
&'static crate::peripherals::io_mux::GPIO0,
211-
>(iomux.gpio36()),
212-
37 => core::mem::transmute::<
213-
&'static crate::peripherals::io_mux::GPIO37,
214-
&'static crate::peripherals::io_mux::GPIO0,
215-
>(iomux.gpio37()),
216-
38 => core::mem::transmute::<
217-
&'static crate::peripherals::io_mux::GPIO38,
218-
&'static crate::peripherals::io_mux::GPIO0,
219-
>(iomux.gpio38()),
220-
39 => core::mem::transmute::<
221-
&'static crate::peripherals::io_mux::GPIO39,
222-
&'static crate::peripherals::io_mux::GPIO0,
223-
>(iomux.gpio39()),
81+
0 => transmute::<&'static io_mux::GPIO0, &'static io_mux::GPIO0>(iomux.gpio0()),
82+
1 => transmute::<&'static io_mux::GPIO1, &'static io_mux::GPIO0>(iomux.gpio1()),
83+
2 => transmute::<&'static io_mux::GPIO2, &'static io_mux::GPIO0>(iomux.gpio2()),
84+
3 => transmute::<&'static io_mux::GPIO3, &'static io_mux::GPIO0>(iomux.gpio3()),
85+
4 => transmute::<&'static io_mux::GPIO4, &'static io_mux::GPIO0>(iomux.gpio4()),
86+
5 => transmute::<&'static io_mux::GPIO5, &'static io_mux::GPIO0>(iomux.gpio5()),
87+
6 => transmute::<&'static io_mux::GPIO6, &'static io_mux::GPIO0>(iomux.gpio6()),
88+
7 => transmute::<&'static io_mux::GPIO7, &'static io_mux::GPIO0>(iomux.gpio7()),
89+
8 => transmute::<&'static io_mux::GPIO8, &'static io_mux::GPIO0>(iomux.gpio8()),
90+
9 => transmute::<&'static io_mux::GPIO9, &'static io_mux::GPIO0>(iomux.gpio9()),
91+
10 => transmute::<&'static io_mux::GPIO10, &'static io_mux::GPIO0>(iomux.gpio10()),
92+
11 => transmute::<&'static io_mux::GPIO11, &'static io_mux::GPIO0>(iomux.gpio11()),
93+
12 => transmute::<&'static io_mux::GPIO12, &'static io_mux::GPIO0>(iomux.gpio12()),
94+
13 => transmute::<&'static io_mux::GPIO13, &'static io_mux::GPIO0>(iomux.gpio13()),
95+
14 => transmute::<&'static io_mux::GPIO14, &'static io_mux::GPIO0>(iomux.gpio14()),
96+
15 => transmute::<&'static io_mux::GPIO15, &'static io_mux::GPIO0>(iomux.gpio15()),
97+
16 => transmute::<&'static io_mux::GPIO16, &'static io_mux::GPIO0>(iomux.gpio16()),
98+
17 => transmute::<&'static io_mux::GPIO17, &'static io_mux::GPIO0>(iomux.gpio17()),
99+
18 => transmute::<&'static io_mux::GPIO18, &'static io_mux::GPIO0>(iomux.gpio18()),
100+
19 => transmute::<&'static io_mux::GPIO19, &'static io_mux::GPIO0>(iomux.gpio19()),
101+
20 => transmute::<&'static io_mux::GPIO20, &'static io_mux::GPIO0>(iomux.gpio20()),
102+
21 => transmute::<&'static io_mux::GPIO21, &'static io_mux::GPIO0>(iomux.gpio21()),
103+
22 => transmute::<&'static io_mux::GPIO22, &'static io_mux::GPIO0>(iomux.gpio22()),
104+
23 => transmute::<&'static io_mux::GPIO23, &'static io_mux::GPIO0>(iomux.gpio23()),
105+
24 => transmute::<&'static io_mux::GPIO24, &'static io_mux::GPIO0>(iomux.gpio24()),
106+
25 => transmute::<&'static io_mux::GPIO25, &'static io_mux::GPIO0>(iomux.gpio25()),
107+
26 => transmute::<&'static io_mux::GPIO26, &'static io_mux::GPIO0>(iomux.gpio26()),
108+
27 => transmute::<&'static io_mux::GPIO27, &'static io_mux::GPIO0>(iomux.gpio27()),
109+
32 => transmute::<&'static io_mux::GPIO32, &'static io_mux::GPIO0>(iomux.gpio32()),
110+
33 => transmute::<&'static io_mux::GPIO33, &'static io_mux::GPIO0>(iomux.gpio33()),
111+
34 => transmute::<&'static io_mux::GPIO34, &'static io_mux::GPIO0>(iomux.gpio34()),
112+
35 => transmute::<&'static io_mux::GPIO35, &'static io_mux::GPIO0>(iomux.gpio35()),
113+
36 => transmute::<&'static io_mux::GPIO36, &'static io_mux::GPIO0>(iomux.gpio36()),
114+
37 => transmute::<&'static io_mux::GPIO37, &'static io_mux::GPIO0>(iomux.gpio37()),
115+
38 => transmute::<&'static io_mux::GPIO38, &'static io_mux::GPIO0>(iomux.gpio38()),
116+
39 => transmute::<&'static io_mux::GPIO39, &'static io_mux::GPIO0>(iomux.gpio39()),
224117
_ => panic!(),
225118
}
226119
}

0 commit comments

Comments
 (0)