altos: Add SPI linked radio API

[fw/altos] / src / drivers / ao_radio_spi.h

diff --git a/src/drivers/ao_radio_spi.h b/src/drivers/ao_radio_spi.h
new file mode 100644 (file)
index 0000000..2957f70
--- /dev/null
+++ b/src/drivers/ao_radio_spi.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright © 2012 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_RADIO_SPI_H_
+#define _AO_RADIO_SPI_H_
+
+#define AO_RADIO_SPI_RECV      0
+#define AO_RADIO_SPI_RECV_ABORT        1
+#define AO_RADIO_SPI_RECV_FETCH        2
+#define AO_RADIO_SPI_SEND      3
+
+#define AO_RADIO_SPI_CMAC_KEY  4
+#define AO_RADIO_SPI_CMAC_RECV 5
+#define AO_RADIO_SPI_CMAC_SEND 6
+
+#define AO_RADIO_SPI_TEST_ON   7
+#define AO_RADIO_SPI_TEST_OFF  8
+
+#define AO_RADIO_SPI_MAX_PAYLOAD       128
+
+struct ao_radio_spi_request {
+       uint8_t         len;            /* required to be first by cc1111 DMA engine */
+       uint8_t         request;
+       uint8_t         recv_len;
+       uint8_t         pad;
+       uint32_t        setting;
+       uint16_t        timeout;
+       uint8_t         payload[AO_RADIO_SPI_MAX_PAYLOAD];
+};
+
+#define AO_RADIO_SPI_REQUEST_HEADER_LEN        (sizeof (struct ao_radio_spi_request) - AO_RADIO_SPI_MAX_PAYLOAD)
+
+struct ao_radio_spi_reply {
+       uint8_t         status;
+       int8_t          rssi;
+       uint8_t         payload[AO_RADIO_SPI_MAX_PAYLOAD];
+};
+
+#define AO_RADIO_SPI_REPLY_HEADER_LEN  (sizeof (struct ao_radio_spi_reply) - AO_RADIO_SPI_MAX_PAYLOAD)
+
+void
+ao_radio_slave_init(void);
+
+#endif /* _AO_RADIO_SPI_H_ */