X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fpipistrello-ols%2Fprotocol.h;fp=src%2Fhardware%2Fpipistrello-ols%2Fprotocol.h;h=64db0acbd890b6e217cd8ee923043aaf25312b62;hb=4bd80e12287dbc056f1431e42a17a0cb60010abc;hp=0000000000000000000000000000000000000000;hpb=562b7ae513ed755ee93f233d6a460259cea535de;p=libsigrok.git

diff --git a/src/hardware/pipistrello-ols/protocol.h b/src/hardware/pipistrello-ols/protocol.h
new file mode 100644
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+++ b/src/hardware/pipistrello-ols/protocol.h
@@ -0,0 +1,124 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.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, 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/>.
+ */
+
+#ifndef LIBSIGROK_HARDWARE_PIPISTRELLO_OLS_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_PIPISTRELLO_OLS_PROTOCOL_H
+
+#include <stdint.h>
+#include <string.h>
+#include <glib.h>
+#include <ftdi.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "pipistrello_ols"
+
+#define FTDI_BUF_SIZE          (16 * 1024)
+
+
+#define NUM_CHANNELS           32
+#define NUM_TRIGGER_STAGES     4
+#define TRIGGER_TYPE           "01"
+#define CLOCK_RATE             SR_MHZ(100)
+#define MIN_NUM_SAMPLES        4
+#define DEFAULT_SAMPLERATE     SR_MHZ(100)
+
+/* Command opcodes */
+#define CMD_RESET                  0x00
+#define CMD_RUN                    0x01
+#define CMD_TESTMODE               0x03
+#define CMD_ID                     0x02
+#define CMD_METADATA               0x04
+#define CMD_SET_DIVIDER            0x80
+#define CMD_SET_FLAGS              0x82
+#define CMD_CAPTURE_COUNT          0x83
+#define CMD_CAPTURE_DELAY          0x84
+#define CMD_SET_TRIGGER_MASK       0xc0
+#define CMD_SET_TRIGGER_VALUE      0xc1
+#define CMD_SET_TRIGGER_CONFIG     0xc2
+
+/* Trigger config */
+#define TRIGGER_START              (1 << 3)
+
+/* Bitmasks for CMD_FLAGS */
+/* 12-13 unused, 14-15 RLE mode (we hardcode mode 0). */
+#define FLAG_INTERNAL_TEST_MODE    (1 << 11)
+#define FLAG_EXTERNAL_TEST_MODE    (1 << 10)
+#define FLAG_SWAP_CHANNELS         (1 << 9)
+#define FLAG_RLE                   (1 << 8)
+#define FLAG_SLOPE_FALLING         (1 << 7)
+#define FLAG_CLOCK_EXTERNAL        (1 << 6)
+#define FLAG_CHANNELGROUP_4        (1 << 5)
+#define FLAG_CHANNELGROUP_3        (1 << 4)
+#define FLAG_CHANNELGROUP_2        (1 << 3)
+#define FLAG_CHANNELGROUP_1        (1 << 2)
+#define FLAG_FILTER                (1 << 1)
+#define FLAG_DEMUX                 (1 << 0)
+
+/* Private, per-device-instance driver context. */
+struct dev_context {
+	/** FTDI device context (used by libftdi). */
+	struct ftdi_context *ftdic;
+	uint8_t *ftdi_buf;
+
+	/* Fixed device settings */
+	int max_channels;
+	uint32_t max_samples;
+	uint32_t max_samplerate;
+	uint32_t protocol_version;
+
+	/* Acquisition settings */
+	uint64_t cur_samplerate;
+	uint32_t cur_samplerate_divider;
+	uint64_t limit_samples;
+	int capture_ratio;
+	int trigger_at;
+	uint32_t channel_mask;
+	uint32_t trigger_mask[4];
+	uint32_t trigger_value[4];
+	int num_stages;
+	uint16_t flag_reg;
+
+	/* Operational states */
+	unsigned int num_transfers;
+	unsigned int num_samples;
+	int num_bytes;
+	int cnt_bytes;
+	int cnt_samples;
+	int cnt_samples_rle;
+
+	/* Temporary variables */
+	unsigned int rle_count;
+	unsigned char sample[4];
+	unsigned char tmp_sample[4];
+	unsigned char *raw_sample_buf;
+};
+
+
+SR_PRIV extern const char *p_ols_channel_names[NUM_CHANNELS + 1];
+SR_PRIV int write_shortcommand(struct dev_context *devc, uint8_t command);
+SR_PRIV int write_longcommand(struct dev_context *devc, uint8_t command, uint8_t *data);
+SR_PRIV int p_ols_open(struct dev_context *devc);
+SR_PRIV int p_ols_close(struct dev_context *devc);
+SR_PRIV int p_ols_configure_channels(const struct sr_dev_inst *sdi);
+SR_PRIV struct sr_dev_inst *p_ols_get_metadata(uint8_t *buf, int bytes_read, struct dev_context *devc);
+SR_PRIV int p_ols_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
+SR_PRIV int p_ols_receive_data(int fd, int revents, void *cb_data);
+
+#endif