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-rwxr-xr-xfirmware/target/sh/archos/ata-archos.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/firmware/target/sh/archos/ata-archos.c b/firmware/target/sh/archos/ata-archos.c
new file mode 100755
index 0000000000..73e56b8d84
--- /dev/null
+++ b/firmware/target/sh/archos/ata-archos.c
@@ -0,0 +1,76 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Jens Arnold
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "config.h"
+#include "cpu.h"
+#include <stdbool.h>
+#include "kernel.h"
+#include "system.h"
+#include "ata-target.h"
+#include "hwcompat.h"
+
+volatile unsigned char* ata_control;
+int ata_io_address; /* 0x300 or 0x200 */
+
+void ata_reset(void)
+{
+ /* state HRR0 */
+ and_b(~0x02, &PADRH); /* assert _RESET */
+ sleep(1); /* > 25us */
+
+ /* state HRR1 */
+ or_b(0x02, &PADRH); /* negate _RESET */
+ sleep(1); /* > 2ms */
+}
+
+void ata_address_detect(void)
+{
+ if (read_hw_mask() & ATA_ADDRESS_200)
+ {
+ ata_io_address = 0x200; /* For debug purposes only */
+ ata_control = ATA_CONTROL1;
+ }
+ else
+ {
+ ata_io_address = 0x300; /* For debug purposes only */
+ ata_control = ATA_CONTROL2;
+ }
+}
+
+void ata_enable(bool on)
+{
+ if(on)
+ and_b(~0x80, &PADRL); /* enable ATA */
+ else
+ or_b(0x80, &PADRL); /* disable ATA */
+
+ or_b(0x80, &PAIORL);
+}
+
+void ata_device_init(void)
+{
+ or_b(0x02, &PAIORH); /* output for ATA reset */
+ or_b(0x02, &PADRH); /* release ATA reset */
+ PACR2 &= 0xBFFF; /* GPIO function for PA7 (IDE enable) */
+}
+
+bool ata_is_coldstart(void)
+{
+ return (PACR2 & 0x4000) != 0;
+}