X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;ds=sidebyside;f=src%2Fcommon%2Fmx25l.rs;h=a6ad39550e9cbb9d9df7b1c0236e2e7228fabb51;hb=a6747c47ca99a182f6cb4c41bad0232fb2754ff7;hp=2cc79f08f526b853c3a21a9c77965c09d8c57ff5;hpb=821707231e866e5710d6d8a0d7a68a85015de062;p=gps-watch.git

diff --git a/src/common/mx25l.rs b/src/common/mx25l.rs
index 2cc79f0..a6ad395 100644
--- a/src/common/mx25l.rs
+++ b/src/common/mx25l.rs
@@ -23,7 +23,7 @@
 
 use gpio;
 use spi;
-use storage::Storage;
+use storage::{Storage, Error};
 
 const SECTOR_SIZE: usize = 4096;
 const PAGE_SIZE:   usize = 256;
@@ -42,10 +42,6 @@ enum Command {
     RDID = 0x9f,
 }
 
-pub enum Error {
-    UnalignedAddress = 1,
-}
-
 const SR_WIP: u8 = 1 << 0;
 
 impl Mx25l {
@@ -162,4 +158,25 @@ impl Storage for Mx25l {
             }
         })
     }
+
+    fn write(&mut self, address: usize, buffer: &[u8; SECTOR_SIZE])
+             -> Result<(), Error> {
+        if let Err(e) = self.erase_sector(address) {
+            return Err(e);
+        }
+
+        for (i, page_bytes) in buffer.chunks(PAGE_SIZE).enumerate() {
+            let page_address = address + (i * PAGE_SIZE);
+
+            // XXX: Inefficient.
+            let mut ba = [0xff; PAGE_SIZE];
+            ba.copy_from_slice(&page_bytes);
+
+            if let Err(e) = self.program_page(page_address, &ba) {
+                return Err(e);
+            }
+        }
+
+        Ok(())
+    }
 }