forked from M-Labs/zynq-rs
add error led
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116
libboard_zynq/src/error_led.rs
Normal file
116
libboard_zynq/src/error_led.rs
Normal file
@ -0,0 +1,116 @@
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use libregister::{RegisterRW, RegisterW};
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use libregister::{register, register_at, register_bit, register_bits};
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use super::slcr;
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pub struct ErrorLED {
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regs: RegisterBlock,
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}
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impl ErrorLED {
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#[cfg(feature = "target_kasli_soc")]
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pub fn error_led() -> Self {
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slcr::RegisterBlock::unlocked(|slcr| {
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// Error LED at MIO pin 37
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slcr.mio_pin_37.write(
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slcr::MioPin37::zeroed()
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.l3_sel(0b000)
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.io_type(slcr::IoBufferType::Lvcmos25)
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.pullup(true)
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.disable_rcvr(true)
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);
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// reset
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slcr.gpio_rst_ctrl.reset_gpio();
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});
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Self::error_led_common(0xFFFF - 0x0080)
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}
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fn error_led_common(gpio_output_mask: u16) -> Self {
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// Setup register block
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let self_ = Self {
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regs: RegisterBlock::error_led(),
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};
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// Setup GPIO output mask
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self_.regs.gpio_output_mask.modify(|_, w| {
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w.mask(gpio_output_mask)
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});
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self_.regs.gpio_direction.modify(|_, w| {
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w.lederr(true)
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});
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self_
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}
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fn led_oe(&mut self, oe: bool) {
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self.regs.gpio_output_enable.modify(|_, w| {
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w.lederr(oe)
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})
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}
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fn led_o(&mut self, o: bool) {
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self.regs.gpio_output_mask.modify(|_, w| {
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w.lederr_o(o)
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})
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}
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pub fn toggle(&mut self, state: bool) {
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self.led_o(state);
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self.led_oe(state);
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}
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}
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pub struct RegisterBlock {
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pub gpio_output_mask: &'static mut GPIOOutputMask,
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pub gpio_direction: &'static mut GPIODirection,
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pub gpio_output_enable: &'static mut GPIOOutputEnable,
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}
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impl RegisterBlock {
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pub fn error_led() -> Self {
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Self {
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gpio_output_mask: GPIOOutputMask::new(),
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gpio_direction: GPIODirection::new(),
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gpio_output_enable: GPIOOutputEnable::new()
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}
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}
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}
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register!(gpio_output_mask,
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/// MASK_DATA_1_LSW:
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/// Maskable output data for MIO[47:32]
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GPIOOutputMask, RW, u32);
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#[cfg(feature = "target_kasli_soc")]
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register_at!(GPIOOutputMask, 0xE000A008, new);
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#[cfg(feature = "target_kasli_soc")]
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register_bit!(gpio_output_mask,
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/// Output for LED_ERR (MIO[37])
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lederr_o, 5);
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#[cfg(feature = "target_kasli_soc")]
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register_bits!(gpio_output_mask,
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mask, u16, 16, 31);
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register!(gpio_direction,
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/// DIRM_1:
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/// Direction mode for MIO[53:32]; 0/1 = in/out
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GPIODirection, RW, u32);
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#[cfg(feature = "target_kasli_soc")]
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register_at!(GPIODirection, 0xE000A244, new);
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#[cfg(feature = "target_kasli_soc")]
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register_bit!(gpio_direction,
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/// Direction for LED_ERR
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lederr, 5);
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register!(gpio_output_enable,
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/// OEN_1:
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/// Output enable for MIO[53:32]
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GPIOOutputEnable, RW, u32);
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#[cfg(feature = "target_kasli_soc")]
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register_at!(GPIOOutputEnable, 0xE000A248, new);
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#[cfg(feature = "target_kasli_soc")]
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register_bit!(gpio_output_enable,
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/// Output enable for LED_ERR
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lederr, 5);
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@ -23,3 +23,5 @@ pub mod sdio;
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pub mod i2c;
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pub mod logger;
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pub mod ps7_init;
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#[cfg(feature="target_kasli_soc")]
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pub mod error_led;
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