/**
* \file
* <!--
- * Copyright 2007 Develer S.r.l. (http://www.develer.com/)
- * -->
+ * This file is part of BeRTOS.
*
- * \version $Id: pocketcmd.c 16587 2007-10-02 14:31:02Z batt $
+ * Bertos 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.
*
- * \author Francesco Sacchi <batt@develer.com>
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction. Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License. This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2007 Develer S.r.l. (http://www.develer.com/)
+ * -->
*
* \brief pocketBus protocol Command layer implementation.
*
*
* The CMD ID used is the same supplied by the master when
* the command was sent.
+ *
+ * \author Francesco Sacchi <batt@develer.com>
*/
#include "pocketcmd.h"
#include "pocketbus.h"
-#include <cfg/macros.h>
+#include "cfg/cfg_pocketbus.h"
+
+// Define logging setting (for cfg/log.h module).
+#define LOG_LEVEL POCKETBUS_LOG_LEVEL
+#define LOG_VERBOSITY POCKETBUS_LOG_FORMAT
+#include <cfg/log.h>
#include <cfg/debug.h>
+#include <cfg/macros.h>
#include <cfg/module.h>
#include <drv/timer.h>
-#include <mware/byteorder.h>
+#include <cpu/byteorder.h>
+#include <cpu/detect.h>
#include <string.h>
* Call it to read and process pocketBus commands.
*/
void pocketcmd_poll(struct PocketCmdCtx *ctx)
+{
+ PocketCmdMsg msg;
+ while (pocketcmd_recv(ctx, &msg))
+ {
+ /* Check for command callback */
+ pocketcmd_hook_t callback = ctx->search(msg.cmd);
+
+ /* Call it if exists */
+ if (callback)
+ callback(&msg);
+ }
+}
+
+
+
+/**
+ * pocketBus Command recv function.
+ * Call it to read and process pocketBus commands.
+ */
+bool pocketcmd_recv(struct PocketCmdCtx *ctx, PocketCmdMsg *recv_msg)
{
PocketMsg msg;
if (msg.addr == ctx->addr ||
msg.addr == POCKETBUS_BROADCAST_ADDR)
{
- const PocketCmdHdr *hdr = (const PocketCmdHdr *)msg.payload;
+
+ #if CPU_AVR
+ const PocketCmdHdr *hdr = (const PocketCmdHdr *)msg.payload;
+ #else
+ #if !CPU_ARM
+ #warning Fix alignment problem..
+ /*
+ * The code below make one memcopy, this the only way to
+ * solve alignment problem on ARM. If you are use other
+ * architecture you should find other way to optimize
+ * this code.
+ */
+ #endif
+ PocketCmdHdr hd;
+ memcpy(&hd, msg.payload, sizeof(PocketCmdHdr));
+ const PocketCmdHdr *hdr = &hd;
+ #endif
+
pocketcmd_t cmd = be16_to_cpu(hdr->cmd);
/* We're no longer waiting for a reply (in case we were) */
if (cmd == ctx->waiting)
ctx->waiting = PKTCMD_NULL;
- /* Check for command callback */
- pocketcmd_hook_t callback = ctx->search(cmd);
-
- /* Call it if exists */
- if (callback)
- {
- PocketCmdMsg cmd_msg;
-
- cmd_msg.cmd_ctx = ctx;
- cmd_msg.cmd = cmd;
- cmd_msg.len = msg.len - sizeof(PocketCmdHdr);
- cmd_msg.buf = msg.payload + sizeof(PocketCmdHdr);
+ recv_msg->cmd_ctx = ctx;
+ recv_msg->cmd = cmd;
+ recv_msg->len = msg.len - sizeof(PocketCmdHdr);
+ recv_msg->buf = msg.payload + sizeof(PocketCmdHdr);
- callback(&cmd_msg);
- }
+ return true;
}
}
+
+ return false;
}
+
/**
* Send command \a cmd to/from slave adding \a len arguments in \a buf.
* Address used is contained in \a ctx->addr .
if (ctx->waiting != PKTCMD_NULL)
{
/* Check is reply timeout is elapsed */
- if (timer_clock() - ctx->reply_timer < ms_to_ticks(PKTCMD_REPLY_TIMEOUT))
+ if (timer_clock() - ctx->reply_timer < ms_to_ticks(CONFIG_POCKETBUS_CMD_REPLY_TIMEOUT))
{
- TRACEMSG("Pkt discard! waiting cmd[%04X]\n", ctx->waiting);
+ LOG_ERR("Pkt discard! waiting cmd[%04X]\n", ctx->waiting);
return false;
}
else
{
- TRACEMSG("Timeout waiting cmd[%04X]\n", ctx->waiting);
+ LOG_INFO("Timeout waiting cmd[%04X]\n", ctx->waiting);
ctx->waiting = PKTCMD_NULL;
}
}
if (wait_reply)
{
- ctx->waiting = cmd;
+ ctx->waiting = be16_to_cpu(cmd);
ctx->reply_timer = timer_clock();
}
+
return true;
}