From 1d7fb82f0aec11331635532583617d773888b991 Mon Sep 17 00:00:00 2001
From: Damien George
Date: Mon, 15 Sep 2014 23:49:57 +0100
Subject: stmhal: Change 64-bit arithmetic to 32-bit for SD card block
 addressing.

By measuring SD card addresses in blocks and not bytes, one can get away
with using 32-bit numbers.

This patch also uses proper atomic lock/unlock around SD card
read/write, adds SD.info() function, and gives error code for failed
read/writes.
---
 stmhal/diskio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'stmhal/diskio.c')

diff --git a/stmhal/diskio.c b/stmhal/diskio.c
index 35b9eab99..44059b04d 100644
--- a/stmhal/diskio.c
+++ b/stmhal/diskio.c
@@ -127,7 +127,7 @@ DRESULT disk_read (
 
 #if MICROPY_HW_HAS_SDCARD
         case PD_SDCARD:
-            if (!sdcard_read_blocks(buff, sector, count)) {
+            if (sdcard_read_blocks(buff, sector, count) != 0) {
                 return RES_ERROR;
             }
             return RES_OK;
@@ -160,7 +160,7 @@ DRESULT disk_write (
 
 #if MICROPY_HW_HAS_SDCARD
         case PD_SDCARD:
-            if (!sdcard_write_blocks(buff, sector, count)) {
+            if (sdcard_write_blocks(buff, sector, count) != 0) {
                 return RES_ERROR;
             }
             return RES_OK;
-- 
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