Struct capsules_extra::ltc294x::LTC294XDriver

pub struct LTC294XDriver<'a, I: I2CDevice> { /* private fields */ }

Default implementation of the LTC2941 driver that provides a Driver interface for providing access to applications.

Implementations

impl<'a, I: I2CDevice> LTC294XDriver<'a, I>

pub fn new( ltc: &'a LTC294X<'a, I>, grants: Grant<App, UpcallCount<{ upcall::COUNT }>, AllowRoCount<0>, AllowRwCount<0>>, ) -> LTC294XDriver<'a, I>

Trait Implementations

impl<I: I2CDevice> LTC294XClient for LTC294XDriver<'_, I>

fn interrupt(&self)

fn status( &self, undervolt_lockout: bool, vbat_alert: bool, charge_alert_low: bool, charge_alert_high: bool, accumulated_charge_overflow: bool, )

fn charge(&self, charge: u16)

fn done(&self)

fn voltage(&self, voltage: u16)

fn current(&self, current: u16)

impl<I: I2CDevice> SyscallDriver for LTC294XDriver<'_, I>

fn command( &self, command_num: usize, data: usize, _: usize, process_id: ProcessId, ) -> CommandReturn

Request operations for the LTC294X chip.

command_num

• 0: Driver existence check.
• 1: Get status of the chip.
• 2: Configure settings of the chip.
• 3: Reset accumulated charge measurement to zero.
• 4: Set the upper threshold for charge.
• 5: Set the lower threshold for charge.
• 6: Get the current charge accumulated.
• 7: Shutdown the chip.
• 8: Get the voltage reading. Only supported on the LTC2942 and LTC2943.
• 9: Get the current reading. Only supported on the LTC2943.
• 10: Set the model of the LTC294X actually being used. data is the value of the X.

fn allocate_grant(&self, processid: ProcessId) -> Result<(), Error>

Request to allocate a capsule’s grant for a specific process.

fn allow_userspace_readable( &self, app: ProcessId, which: usize, slice: ReadWriteProcessBuffer, ) -> Result<ReadWriteProcessBuffer, (ReadWriteProcessBuffer, ErrorCode)>

System call for a process to pass a buffer (a UserspaceReadableProcessBuffer) to the kernel that the kernel can either read or write. The kernel calls this method only after it checks that the entire buffer is within memory the process can both read and write.