compilation on host

diff --git a/include/aversive/eeprom.h b/include/aversive/eeprom.h
new file mode 100644 (file)
index 0000000..0b165c2
--- /dev/null
+++ b/include/aversive/eeprom.h
@@ -0,0 +1,41 @@
+/*  
+ *  Copyright Droids Corporation, Microb Technology, Eirbot (2005)
+ * 
+ *  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; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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
+ *
+ *  Revision : $Id: eeprom.h,v 1.1.2.4 2007-11-21 21:54:38 zer0 Exp $
+ *
+ */
+
+/**
+ * This file is used for compatibility between host and avr : with
+ * this we can emulate eeprom on a host.
+ */
+
+#ifndef _AVERSIVE_EEPROM_H_
+#define _AVERSIVE_EEPROM_H_
+
+#ifndef HOST_VERSION
+
+#include <avr/eeprom.h>
+
+#else
+
+/* XXX */
+
+#endif /* HOST_VERSION */
+#endif /* _AVERSIVE_EEPROM_H_ */
+
+

diff --git a/modules/comm/spi/spi_host.c b/modules/comm/spi/spi_host.c
new file mode 100644 (file)
index 0000000..9ccf87d
--- /dev/null
+++ b/modules/comm/spi/spi_host.c
@@ -0,0 +1,159 @@
+/*  
+ *  Copyright Droids Corporation (2008)
+ * 
+ *  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; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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
+ *
+ */
+
+/*
+ * Host wrapper for SPI
+ */
+
+#include <aversive.h>
+#include <aversive/parts.h>
+#include <aversive/error.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <spi.h>
+#include <spi_config.h>
+
+/* global vars */
+static volatile uint8_t g_ss_number;
+static volatile spi_mode_t g_spi_mode;
+static volatile uint8_t g_slave_selected;
+static volatile uint8_t g_spi_order;
+static volatile spi_format_t g_spi_format;
+static volatile spi_mode_t g_spi_mode;
+static volatile spi_clk_rate_t g_spi_clk_rate;
+
+/*
+ * Register a pin as SS line
+ * Returns a unique identifier, or -1 on error
+ * There is always the physical SS line registered as 0
+ */
+int8_t spi_register_ss_line(volatile uint8_t *port, uint8_t bitnum)
+{
+       DEBUG(E_SPI, "Trying to register new SS line: port 0x%x, bitnum %d", port, bitnum);
+       /* too much SS lines (try to change SPI_MAX_SLAVES) */
+       if (g_ss_number >= SPI_MAX_SLAVES+1)
+               return -1;
+
+       NOTICE(E_SPI, "New Slave Line registered: %d", g_ss_number);
+       return g_ss_number++;
+}
+
+
+/*
+ *     Set data order (default: MSB first)
+ */
+inline void spi_set_data_order(uint8_t order)
+{
+       g_spi_order = order;
+}
+
+/*
+ *     Get data order
+ */
+inline uint8_t spi_get_data_order(void)
+{
+       return g_spi_order;
+}
+
+
+/*
+ *     Initialize SPI
+ */
+void spi_init(spi_mode_t mode, spi_format_t format, spi_clk_rate_t clk_rate)
+{
+       NOTICE(E_SPI, "Init SPI: mode %d, format %d, clk_rate %d",
+              mode, format, clk_rate);
+
+       /* SS pin is not driven by SPI hardware 
+        * This is taken care of by spi_register_ss_line()
+        * EVEN for the "default" SS line */
+       g_ss_number = 0;
+       g_spi_format = format;
+       g_spi_clk_rate = clk_rate;
+       g_slave_selected = FALSE;
+       g_spi_mode = SPI_MODE_MASTER;
+       NOTICE(E_SPI, "Init done");
+}
+
+/*
+ *     Returns the state of SPI
+ */
+inline spi_mode_t spi_get_mode(void)
+{
+       return g_spi_mode;
+}
+
+/*
+ *     Send a byte (and receive one)
+ *     Returns the received byte
+ */
+uint8_t spi_send_and_receive_byte(uint8_t byte)
+{
+       /* XXX */
+       return 0;
+}
+
+/*
+ *     Send a byte, discard the result
+ */
+inline void spi_send_byte(uint8_t byte)
+{
+       spi_send_and_receive_byte(byte);
+}
+
+/*
+ *     Receives a byte (sends a NULL)
+ */
+uint8_t spi_receive_byte(void)
+{
+       return spi_send_and_receive_byte(0x00);
+}
+
+/*
+ *     Activates the selected SS line
+ */
+uint8_t spi_slave_select(uint8_t slave)
+{
+       if (g_slave_selected) {
+               ERROR(E_SPI, "A slave is already selected !");
+               return EBUSY;
+       }
+
+       /* XXX */
+       g_slave_selected = TRUE;
+       return ESUCCESS;
+}
+
+/*
+ *     Desactivates the selected SS line
+ */
+void spi_slave_deselect(uint8_t slave)
+{
+       /* XXX */
+       g_slave_selected = FALSE;
+}
+
+/*
+ *     Display SS lines
+ */
+void spi_display_ss_lines(void)
+{
+}