X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fbeaglelogic%2Fprotocol.c;h=053daad9176e7b4390faf522a285bec4c5f949aa;hb=HEAD;hp=1c01b64f758405955e5715d3b9a4a67998b51c9d;hpb=ad9dbc1cdb4818954ee2954787feefc896b4c5c4;p=libsigrok.git

diff --git a/hardware/beaglelogic/protocol.c b/hardware/beaglelogic/protocol.c
deleted file mode 100644
index 1c01b64f..00000000
--- a/hardware/beaglelogic/protocol.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2014 Kumar Abhishek <abhishek@theembeddedkitchen.net>
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include "protocol.h"
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-/* Define data packet size independent of packet (bufunitsize bytes) size
- * from the BeagleLogic kernel module */
-#define PACKET_SIZE	(512 * 1024)
-
-/* This implementation is zero copy from the libsigrok side.
- * It does not copy any data, just passes a pointer from the mmap'ed
- * kernel buffers appropriately. It is up to the application which is
- * using libsigrok to decide how to deal with the data.
- */
-SR_PRIV int beaglelogic_receive_data(int fd, int revents, void *cb_data)
-{
-	const struct sr_dev_inst *sdi;
-	struct dev_context *devc;
-	struct sr_datafeed_packet packet;
-	struct sr_datafeed_logic logic;
-
-	int trigger_offset;
-	uint32_t packetsize;
-	uint64_t bytes_remaining;
-
-	if (!(sdi = cb_data) || !(devc = sdi->priv))
-		return TRUE;
-
-	packetsize = PACKET_SIZE;
-	logic.unitsize = SAMPLEUNIT_TO_BYTES(devc->sampleunit);
-
-	if (revents == G_IO_IN) {
-		sr_info("In callback G_IO_IN, offset=%d", devc->offset);
-
-		bytes_remaining = (devc->limit_samples * logic.unitsize) -
-				devc->bytes_read;
-
-		/* Configure data packet */
-		packet.type = SR_DF_LOGIC;
-		packet.payload = &logic;
-		logic.data = devc->sample_buf + devc->offset;
-		logic.length = MIN(packetsize, bytes_remaining);
-
-		if (devc->trigger_fired) {
-			/* Send the incoming transfer to the session bus. */
-			sr_session_send(devc->cb_data, &packet);
-		} else {
-			/* Check for trigger */
-			trigger_offset = soft_trigger_logic_check(devc->stl,
-						logic.data,
-						packetsize);
-
-			if (trigger_offset > -1) {
-				trigger_offset *= logic.unitsize;
-				logic.length = MIN(packetsize - trigger_offset,
-						bytes_remaining);
-				logic.data += trigger_offset;
-
-				sr_session_send(devc->cb_data, &packet);
-
-				devc->trigger_fired = TRUE;
-			}
-		}
-
-		/* Move the read pointer forward */
-		lseek(fd, packetsize, SEEK_CUR);
-
-		/* Update byte count and offset (roll over if needed) */
-		devc->bytes_read += logic.length;
-		if ((devc->offset += packetsize) >= devc->buffersize) {
-			/* One shot capture, we abort and settle with less than
-			 * the required number of samples */
-			if (devc->triggerflags)
-				devc->offset = 0;
-			else
-				packetsize = 0;
-		}
-	}
-
-	/* EOF Received or we have reached the limit */
-	if (devc->bytes_read >= devc->limit_samples * logic.unitsize ||
-			packetsize == 0) {
-		/* Send EOA Packet, stop polling */
-		packet.type = SR_DF_END;
-		packet.payload = NULL;
-		sr_session_send(devc->cb_data, &packet);
-
-		sr_session_source_remove_pollfd(sdi->session, &devc->pollfd);
-	}
-
-	return TRUE;
-}