From 57b51830d62ccdf55bcce96b6956219288592dfa Mon Sep 17 00:00:00 2001
From: Michael Sparmann <theseven@rockbox.org>
Date: Mon, 5 Oct 2009 12:29:14 +0000
Subject: Reduce impact of lost interrupts on S5L8700 I2C

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22953 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/target/arm/s5l8700/i2c-s5l8700.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

(limited to 'firmware/target/arm/s5l8700/i2c-s5l8700.c')

diff --git a/firmware/target/arm/s5l8700/i2c-s5l8700.c b/firmware/target/arm/s5l8700/i2c-s5l8700.c
index 762db9abc2..5b55334b25 100644
--- a/firmware/target/arm/s5l8700/i2c-s5l8700.c
+++ b/firmware/target/arm/s5l8700/i2c-s5l8700.c
@@ -85,20 +85,20 @@ int i2c_write(unsigned char slave, int address, int len, const unsigned char *da
     IICDS = slave & ~1;
     IICSTAT = 0xF0;
     IICCON = 0xF3;
-    wakeup_wait(&i2c_wakeup, TIMEOUT_BLOCK);
+    while ((IICCON & 0x10) == 0) wakeup_wait(&i2c_wakeup, 1);
     
     if (address >= 0) {
         /* write address */
         IICDS = address;
         IICCON = 0xF3;
-        wakeup_wait(&i2c_wakeup, TIMEOUT_BLOCK);
+        while ((IICCON & 0x10) == 0) wakeup_wait(&i2c_wakeup, 1);
     }
     
     /* write data */
     while (len--) {
         IICDS = *data++;
         IICCON = 0xF3;
-        wakeup_wait(&i2c_wakeup, TIMEOUT_BLOCK);
+        while ((IICCON & 0x10) == 0) wakeup_wait(&i2c_wakeup, 1);
     }
 
     /* STOP */
@@ -119,23 +119,23 @@ int i2c_read(unsigned char slave, int address, int len, unsigned char *data)
         IICDS = slave & ~1;
         IICSTAT = 0xF0;
         IICCON = 0xF3;
-        wakeup_wait(&i2c_wakeup, TIMEOUT_BLOCK);
+        while ((IICCON & 0x10) == 0) wakeup_wait(&i2c_wakeup, 1);
 
         /* write address */
         IICDS = address;
         IICCON = 0xF3;
-        wakeup_wait(&i2c_wakeup, TIMEOUT_BLOCK);
+        while ((IICCON & 0x10) == 0) wakeup_wait(&i2c_wakeup, 1);
     }
     
     /* (repeated) START */
     IICDS = slave | 1;
     IICSTAT = 0xB0;
     IICCON = 0xF3;
-    wakeup_wait(&i2c_wakeup, TIMEOUT_BLOCK);
+    while ((IICCON & 0x10) == 0) wakeup_wait(&i2c_wakeup, 1);
     
     while (len--) {
         IICCON = (len == 0) ? 0x73 : 0xF3; /* NACK or ACK */
-        wakeup_wait(&i2c_wakeup, TIMEOUT_BLOCK);
+        while ((IICCON & 0x10) == 0) wakeup_wait(&i2c_wakeup, 1);
         *data++ = IICDS;
     }
 
-- 
cgit v1.2.3