stm32builder/
gpio.rs

1//! A gpio peripheral
2
3use crate::{
4    api::{Convertible, PeripheralOnBus, PeripheralsOnBus, Validatable},
5    device::DeviceIn,
6    gpio_bank::{GpioBankIn, GpioBankOut},
7    peripheral_bus::PeripheralBusOut,
8    types::DeviceId,
9};
10use serde_derive::{Deserialize, Serialize};
11
12/// A gpio peripheral (from device file).
13#[derive(Debug, Deserialize)]
14pub struct GpioIn {
15    /// The gpio version
16    pub version: u8,
17    /// The gpio banks
18    pub banks: Vec<GpioBankIn>,
19}
20
21/// A gpio peripheral (to template).
22#[derive(Debug, PartialEq, Serialize)]
23pub struct GpioOut {
24    /// The gpio version
25    pub version: u8,
26    /// The gpio banks
27    pub banks: Vec<GpioBankOut>,
28}
29
30impl Convertible for GpioIn {
31    type Output = GpioOut;
32
33    /// Convert to outputable gpio peripheral.
34    fn to_output(&self, id: &DeviceId, device: &DeviceIn) -> GpioOut {
35        GpioOut {
36            version: self.version.clone(),
37            banks: self
38                .banks
39                .iter()
40                .filter(|bank| bank.is_valid_for(&id, &device))
41                .map(|bank| bank.to_output(&id, &device))
42                .collect(),
43        }
44    }
45}
46
47impl PeripheralsOnBus for GpioIn {
48    fn peripheral_buses(&self, id: &DeviceId, device: &DeviceIn) -> Vec<PeripheralBusOut> {
49        self.banks
50            .iter()
51            .filter(|bank| bank.is_valid_for(&id, &device))
52            .map(|bank| bank.peripheral_bus())
53            .collect()
54    }
55}
56
57#[cfg(test)]
58mod tests {
59    use super::*;
60    use crate::tests::*;
61    use crate::{
62        peripheral_bus::PeripheralBusIn,
63        types::{Bus, Valid},
64    };
65
66    fn gpio_under_test() -> GpioOut {
67        GpioIn {
68            version: 2,
69            banks: vec![
70                GpioBankIn {
71                    name: "GPIOA".to_owned(),
72                    pins: valid_gpio_pins(),
73                    valid: Valid::default(),
74                    bus: PeripheralBusIn {
75                        name: Bus::AHB,
76                        field: "IOPA".to_owned(),
77                        resetable: true,
78                    },
79                },
80                GpioBankIn {
81                    name: "GPIOB".to_owned(),
82                    pins: valid_gpio_pins(),
83                    valid: Valid::default(),
84                    bus: PeripheralBusIn {
85                        name: Bus::AHB,
86                        field: "IOPB".to_owned(),
87                        resetable: true,
88                    },
89                },
90            ],
91        }
92        .to_output(&valid_device_id(), &valid_device_in())
93    }
94
95    #[test]
96    fn has_a_version_number() {
97        assert_eq!(gpio_under_test().version, 2);
98    }
99    #[test]
100    fn has_some_banks() {
101        let banks = gpio_under_test().banks;
102        let mut banks = banks.iter();
103
104        assert_eq!(banks.next().unwrap().GPIO, "GPIOA");
105        assert_eq!(banks.next().unwrap().GPIO, "GPIOB");
106        assert!(banks.next().is_none());
107    }
108}
stm32builder/gpio.rs

stm32builder/
gpio.rs
