altos: Allow use of internal EEPROM for config storage

This stops exposing eeprom as 'storage' and instead exposes it with a
separate eeprom API so that it can be used for config storage without
also using it for flight log storage.

The config code has been changed to allow it to either use storage for
configuration data or eeprom.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/src/core/ao_eeprom.h b/src/core/ao_eeprom.h
new file mode 100644
index 00000000..915522bf
--- /dev/null
+++ b/src/core/ao_eeprom.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright © 2013 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#ifndef _AO_EEPROM_H_
+#define _AO_EEPROM_H_
+
+extern const ao_pos_t	ao_eeprom_total;
+
+/*
+ * Write to eeprom
+ */
+
+uint8_t
+ao_eeprom_write(ao_pos_t pos32, __xdata void *v, uint16_t len);
+
+/*
+ * Read from eeprom
+ */
+uint8_t
+ao_eeprom_read(ao_pos_t pos, __xdata void *v, uint16_t len);
+
+/*
+ * Initialize eeprom
+ */
+
+void
+ao_eeprom_init(void);
+
+#endif /* _AO_EEPROM_H_ */