Add flash partition capsule support (#60)

* Add flash storage logical driver and organize into `flash_driver` package

* update dummy flash ctrl page_size to 256 bytes

* Flash storage driver in-kernel testing

* Add flash partition capsule and instantiate syscall driver in board.rs

* Bug fix for erase path

* Address review comments

* Address review comments: enhance partial erase handling

* Bug fix in parial erase handling code path and improvement of storage erase test cases

Cargo.toml

@@ -93,6 +93,7 @@ gdbstub_arch = "0.2.4"
 getrandom = "0.2"
 hex = "0.4.3"
 i3c-driver = { path = "runtime/i3c" }
+flash-driver = { path = "runtime/flash" }
 capsules-runtime = { path = "runtime/capsules" }
 lazy_static = "1.4.0"
 num-derive = "0.4.2"

emulator/app/Cargo.toml

@@ -39,3 +39,5 @@ test-flash-ctrl-read-write-page = []
 test-flash-ctrl-erase-page = []
 test-mctp-ctrl-cmds = ["emulator-periph/test-mctp-ctrl-cmds"]
 test-mctp-send-loopback = ["emulator-periph/test-mctp-send-loopback"]
+test-flash-storage-read-write = []
+test-flash-storage-erase = []

emulator/periph/Cargo.toml

@@ -33,3 +33,5 @@ test-flash-ctrl-read-write-page = []
 test-flash-ctrl-erase-page = []
 test-mctp-ctrl-cmds = []
 test-mctp-send-loopback = []
+test-flash-storage-read-write = []
+test-flash-storage-erase = []

emulator/periph/src/flash_ctrl.rs

@@ -82,11 +82,11 @@ pub struct DummyFlashCtrl {
 
 impl DummyFlashCtrl {
     /// Page size for the flash storage connected to the controller.
-    pub const PAGE_SIZE: usize = 1024;
+    pub const PAGE_SIZE: usize = 256;
 
     /// Maximum number of pages in the flash storage connected to the controller.
     /// This is a dummy value, the actual value should be set based on the flash storage size.
-    pub const MAX_PAGES: u32 = 64 * 1024;
+    pub const MAX_PAGES: u32 = 64 * 1024 * 1024 / Self::PAGE_SIZE as u32;
 
     /// I/O processing delay in ticks
     pub const IO_START_DELAY: u64 = 200;

runtime/Cargo.toml

@@ -13,6 +13,7 @@ capsules-runtime.workspace = true
 capsules-system = { git = "https://github.com/tock/tock.git", rev = "b128ae817b86706c8c4e39d27fae5c54b98659f1" }
 components = { git = "https://github.com/tock/tock.git", rev = "b128ae817b86706c8c4e39d27fae5c54b98659f1" }
 i3c-driver.workspace = true
+flash-driver.workspace = true
 kernel = { git = "https://github.com/tock/tock.git", rev = "b128ae817b86706c8c4e39d27fae5c54b98659f1" }
 registers-generated.workspace = true
 riscv = { git = "https://github.com/tock/tock.git", rev = "b128ae817b86706c8c4e39d27fae5c54b98659f1" }
@@ -30,3 +31,5 @@ test-flash-ctrl-read-write-page = []
 test-flash-ctrl-erase-page = []
 test-mctp-ctrl-cmds = []
 test-mctp-send-loopback = []
+test-flash-storage-read-write = []
+test-flash-storage-erase = []

runtime/capsules/Cargo.toml

@@ -11,6 +11,7 @@ kernel = { git = "https://github.com/tock/tock.git", rev = "b128ae817b86706c8c4e
 
 capsules-extra = { git = "https://github.com/tock/tock.git", rev = "b128ae817b86706c8c4e39d27fae5c54b98659f1" }
 i3c-driver.workspace = true
+flash-driver.workspace = true
 zerocopy.workspace = true
 bitfield.workspace = true
 romtime.workspace = true