Struct capsules_extra::app_flash_driver::AppFlash

pub struct AppFlash<'a> { /* private fields */ }

Implementations

impl<'a> AppFlash<'a>

pub fn new( driver: &'a dyn NonvolatileStorage<'a>, grant: Grant<App, UpcallCount<{ upcall::COUNT }>, AllowRoCount<{ ro_allow::COUNT }>, AllowRwCount<0>>, buffer: &'static mut [u8], ) -> AppFlash<'a>

Trait Implementations

impl NonvolatileStorageClient for AppFlash<'_>

fn read_done(&self, _buffer: &'static mut [u8], _length: usize)

read_done is called when the implementor is finished reading in to the buffer. The callback returns the buffer and the number of bytes that were actually read.

fn write_done(&self, buffer: &'static mut [u8], _length: usize)

write_done is called when the implementor is finished writing from the buffer. The callback returns the buffer and the number of bytes that were actually written.

impl SyscallDriver for AppFlash<'_>

fn command( &self, command_num: usize, arg1: usize, _: usize, processid: ProcessId, ) -> CommandReturn

App flash control.

command_num

• 0: Driver existence check.
• 1: Write the memory from the allow buffer to the address in flash.

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.