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Only store the storage location in the Kernel

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This commit is contained in:
Julien Cretin
2020-05-08 17:00:59 +02:00
parent 3edb387615
commit ecf02eb6ce
3 changed files with 34 additions and 62 deletions
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12
patches/tock/01-persistent-storage.patch
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@@ -42,7 +42,7 @@ index fe493727..105f7120 100644
platform.pconsole.start();
diff --git a/chips/nrf52/src/nvmc.rs b/chips/nrf52/src/nvmc.rs
index 60fc2da8..77e7423d 100644
index 60fc2da8..45c75f89 100644
--- a/chips/nrf52/src/nvmc.rs
+++ b/chips/nrf52/src/nvmc.rs
@@ -3,6 +3,7 @@
@@ -126,7 +126,7 @@ index 60fc2da8..77e7423d 100644
let word: u32 = (data[i + 0] as u32) << 0
| (data[i + 1] as u32) << 8
| (data[i + 2] as u32) << 16
@@ -390,3 +422,178 @@ impl hil::flash::Flash for Nvmc {
@@ -390,3 +422,186 @@ impl hil::flash::Flash for Nvmc {
self.erase_page(page_number)
}
}
@@ -158,6 +158,8 @@ index 60fc2da8..77e7423d 100644
+/// - COMMAND(1, 2): Get the maximum number of word writes between page erasures (always 2).
+/// - COMMAND(1, 3): Get the maximum number page erasures in the lifetime of the flash (always
+/// 10000).
+/// - COMMAND(1, 4): Get the storage address (page-aligned).
+/// - COMMAND(1, 5): Get the storage length (page-aligned).
+/// - COMMAND(2, ptr): Write the allow slice to the flash region starting at `ptr`.
+/// - `ptr` must be word-aligned.
+/// - The allow slice length must be word aligned.
@@ -268,6 +270,12 @@ index 60fc2da8..77e7423d 100644
+ (1, 3) => ReturnCode::SuccessWithValue {
+ value: MAX_PAGE_ERASES,
+ },
+ (1, 4) => ReturnCode::SuccessWithValue {
+ value: STORAGE_PTR,
+ },
+ (1, 5) => ReturnCode::SuccessWithValue {
+ value: STORAGE_LEN,
+ },
+ (1, _) => ReturnCode::EINVAL,
+
+ (2, ptr) => self