strat9_bus_drivers/
ti_pwmss.rs

1use crate::{BusChild, BusDriver, BusError, PowerState, mmio::MmioRegion};
2use alloc::{string::String, vec::Vec};
3
4const COMPATIBLE: &[&str] = &["ti,am33xx-pwmss"];
5
6pub struct TiPwmss {
7    regs: MmioRegion,
8    power_state: PowerState,
9    children: Vec<BusChild>,
10}
11
12impl TiPwmss {
13    /// Creates a new instance.
14    pub fn new() -> Self {
15        Self {
16            regs: MmioRegion::new(),
17            power_state: PowerState::Off,
18            children: Vec::new(),
19        }
20    }
21
22    /// Performs the add child operation.
23    pub fn add_child(&mut self, child: BusChild) {
24        self.children.push(child);
25    }
26}
27
28impl BusDriver for TiPwmss {
29    /// Performs the name operation.
30    fn name(&self) -> &str {
31        "ti-pwmss"
32    }
33
34    /// Performs the compatible operation.
35    fn compatible(&self) -> &[&str] {
36        COMPATIBLE
37    }
38
39    /// Performs the init operation.
40    fn init(&mut self, base: usize) -> Result<(), BusError> {
41        self.regs.init(base, 0x1000);
42        self.power_state = PowerState::On;
43        Ok(())
44    }
45
46    /// Performs the shutdown operation.
47    fn shutdown(&mut self) -> Result<(), BusError> {
48        self.power_state = PowerState::Off;
49        Ok(())
50    }
51
52    /// Reads reg.
53    fn read_reg(&self, offset: usize) -> Result<u32, BusError> {
54        if !self.regs.is_valid() {
55            return Err(BusError::InitFailed);
56        }
57        Ok(self.regs.read32(offset))
58    }
59
60    /// Writes reg.
61    fn write_reg(&mut self, offset: usize, value: u32) -> Result<(), BusError> {
62        if !self.regs.is_valid() {
63            return Err(BusError::InitFailed);
64        }
65        self.regs.write32(offset, value);
66        Ok(())
67    }
68
69    /// Performs the children operation.
70    fn children(&self) -> Vec<BusChild> {
71        self.children.clone()
72    }
73}
strat9_bus_drivers/ti_pwmss.rs

strat9_bus_drivers/
ti_pwmss.rs
