[libsigrok.git] / src / hardware / fx2lafw / protocol.h

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
 *
 * 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_FX2LAFW_PROTOCOL_H
#define LIBSIGROK_HARDWARE_FX2LAFW_PROTOCOL_H

#include <glib.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <libusb.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"

#define LOG_PREFIX "fx2lafw"

#define USB_INTERFACE		0
#define USB_CONFIGURATION	1
#define NUM_TRIGGER_STAGES	4

#define MAX_RENUM_DELAY_MS	3000
#define NUM_SIMUL_TRANSFERS	32
#define MAX_EMPTY_TRANSFERS	(NUM_SIMUL_TRANSFERS * 2)

#define NUM_CHANNELS		16

#define FX2LAFW_REQUIRED_VERSION_MAJOR	1

#define MAX_8BIT_SAMPLE_RATE	SR_MHZ(24)
#define MAX_16BIT_SAMPLE_RATE	SR_MHZ(12)

/* 6 delay states of up to 256 clock ticks */
#define MAX_SAMPLE_DELAY	(6 * 256)

#define DEV_CAPS_16BIT_POS	0
#define DEV_CAPS_AX_ANALOG_POS	1

#define DEV_CAPS_16BIT		(1 << DEV_CAPS_16BIT_POS)
#define DEV_CAPS_AX_ANALOG	(1 << DEV_CAPS_AX_ANALOG_POS)

#define DSLOGIC_FPGA_FIRMWARE "dreamsourcelab-dslogic-fpga.fw"
#define DSCOPE_FPGA_FIRMWARE "dreamsourcelab-dscope-fpga.fw"
#define DSLOGIC_PRO_FPGA_FIRMWARE "dreamsourcelab-dslogic-pro-fpga.fw"

/* Protocol commands */
#define CMD_GET_FW_VERSION		0xb0
#define CMD_START			0xb1
#define CMD_GET_REVID_VERSION		0xb2

#define CMD_START_FLAGS_CLK_CTL2_POS	4
#define CMD_START_FLAGS_WIDE_POS	5
#define CMD_START_FLAGS_CLK_SRC_POS	6

#define CMD_START_FLAGS_CLK_CTL2	(1 << CMD_START_FLAGS_CLK_CTL2_POS)
#define CMD_START_FLAGS_SAMPLE_8BIT	(0 << CMD_START_FLAGS_WIDE_POS)
#define CMD_START_FLAGS_SAMPLE_16BIT	(1 << CMD_START_FLAGS_WIDE_POS)

#define CMD_START_FLAGS_CLK_30MHZ	(0 << CMD_START_FLAGS_CLK_SRC_POS)
#define CMD_START_FLAGS_CLK_48MHZ	(1 << CMD_START_FLAGS_CLK_SRC_POS)

struct fx2lafw_profile {
	uint16_t vid;
	uint16_t pid;

	const char *vendor;
	const char *model;
	const char *model_version;

	const char *firmware;

	uint32_t dev_caps;

	const char *usb_manufacturer;
	const char *usb_product;
};

struct dev_context {
	const struct fx2lafw_profile *profile;
	GSList *enabled_analog_channels;
	gboolean ch_enabled[NUM_CHANNELS];
	/*
	 * Since we can't keep track of an fx2lafw device after upgrading
	 * the firmware (it renumerates into a different device address
	 * after the upgrade) this is like a global lock. No device will open
	 * until a proper delay after the last device was upgraded.
	 */
	int64_t fw_updated;

	/* Supported samplerates */
	const uint64_t *samplerates;
	int num_samplerates;

	/* Device/capture settings */
	uint64_t cur_samplerate;
	uint64_t limit_samples;
	uint64_t capture_ratio;

	/* Operational settings */
	gboolean trigger_fired;
	gboolean acq_aborted;
	gboolean sample_wide;
	struct soft_trigger_logic *stl;

	unsigned int sent_samples;
	int submitted_transfers;
	int empty_transfer_count;

	unsigned int num_transfers;
	struct libusb_transfer **transfers;
	struct sr_context *ctx;
	void (*send_data_proc)(struct sr_dev_inst *sdi,
		uint8_t *data, size_t length, size_t sample_width);
	uint8_t *logic_buffer;
	float *analog_buffer;

	/* Is this a DSLogic? */
	gboolean dslogic;
	uint16_t dslogic_mode;
	uint32_t trigger_pos;
	int dslogic_external_clock;
};

SR_PRIV int fx2lafw_command_start_acquisition(const struct sr_dev_inst *sdi);
SR_PRIV gboolean match_manuf_prod(libusb_device *dev, const char *manufacturer,
		const char *product);
SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst *sdi, struct sr_dev_driver *di);
SR_PRIV struct dev_context *fx2lafw_dev_new(void);
SR_PRIV void fx2lafw_abort_acquisition(struct dev_context *devc);
SR_PRIV void LIBUSB_CALL fx2lafw_receive_transfer(struct libusb_transfer *transfer);
SR_PRIV size_t fx2lafw_get_buffer_size(struct dev_context *devc);
SR_PRIV unsigned int fx2lafw_get_number_of_transfers(struct dev_context *devc);
SR_PRIV unsigned int fx2lafw_get_timeout(struct dev_context *devc);
SR_PRIV void la_send_data_proc(struct sr_dev_inst *sdi, uint8_t *data,
		size_t length, size_t sample_width);
SR_PRIV void mso_send_data_proc(struct sr_dev_inst *sdi, uint8_t *data,
		size_t length, size_t sample_width);

#endif
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
	5	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	6	*
	7	* This program is free software: you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation, either version 3 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	19	*/
	20
	21	#ifndef LIBSIGROK_HARDWARE_FX2LAFW_PROTOCOL_H
	22	#define LIBSIGROK_HARDWARE_FX2LAFW_PROTOCOL_H
	23
	24	#include <glib.h>
	25	#include <stdint.h>
	26	#include <stdlib.h>
	27	#include <string.h>
	28	#include <libusb.h>
	29	#include <libsigrok/libsigrok.h>
	30	#include "libsigrok-internal.h"
	31
	32	#define LOG_PREFIX "fx2lafw"
	33
	34	#define USB_INTERFACE 0
	35	#define USB_CONFIGURATION 1
	36	#define NUM_TRIGGER_STAGES 4
	37
	38	#define MAX_RENUM_DELAY_MS 3000
	39	#define NUM_SIMUL_TRANSFERS 32
	40	#define MAX_EMPTY_TRANSFERS (NUM_SIMUL_TRANSFERS * 2)
	41
	42	#define NUM_CHANNELS 16
	43
	44	#define FX2LAFW_REQUIRED_VERSION_MAJOR 1
	45
	46	#define MAX_8BIT_SAMPLE_RATE SR_MHZ(24)
	47	#define MAX_16BIT_SAMPLE_RATE SR_MHZ(12)
	48
	49	/* 6 delay states of up to 256 clock ticks */
	50	#define MAX_SAMPLE_DELAY (6 * 256)
	51
	52	#define DEV_CAPS_16BIT_POS 0
	53	#define DEV_CAPS_AX_ANALOG_POS 1
	54
	55	#define DEV_CAPS_16BIT (1 << DEV_CAPS_16BIT_POS)
	56	#define DEV_CAPS_AX_ANALOG (1 << DEV_CAPS_AX_ANALOG_POS)
	57
	58	#define DSLOGIC_FPGA_FIRMWARE "dreamsourcelab-dslogic-fpga.fw"
	59	#define DSCOPE_FPGA_FIRMWARE "dreamsourcelab-dscope-fpga.fw"
	60	#define DSLOGIC_PRO_FPGA_FIRMWARE "dreamsourcelab-dslogic-pro-fpga.fw"
	61
	62	/* Protocol commands */
	63	#define CMD_GET_FW_VERSION 0xb0
	64	#define CMD_START 0xb1
	65	#define CMD_GET_REVID_VERSION 0xb2
	66
	67	#define CMD_START_FLAGS_CLK_CTL2_POS 4
	68	#define CMD_START_FLAGS_WIDE_POS 5
	69	#define CMD_START_FLAGS_CLK_SRC_POS 6
	70
	71	#define CMD_START_FLAGS_CLK_CTL2 (1 << CMD_START_FLAGS_CLK_CTL2_POS)
	72	#define CMD_START_FLAGS_SAMPLE_8BIT (0 << CMD_START_FLAGS_WIDE_POS)
	73	#define CMD_START_FLAGS_SAMPLE_16BIT (1 << CMD_START_FLAGS_WIDE_POS)
	74
	75	#define CMD_START_FLAGS_CLK_30MHZ (0 << CMD_START_FLAGS_CLK_SRC_POS)
	76	#define CMD_START_FLAGS_CLK_48MHZ (1 << CMD_START_FLAGS_CLK_SRC_POS)
	77
	78	struct fx2lafw_profile {
	79	uint16_t vid;
	80	uint16_t pid;
	81
	82	const char *vendor;
	83	const char *model;
	84	const char *model_version;
	85
	86	const char *firmware;
	87
	88	uint32_t dev_caps;
	89
	90	const char *usb_manufacturer;
	91	const char *usb_product;
	92	};
	93
	94	struct dev_context {
	95	const struct fx2lafw_profile *profile;
	96	GSList *enabled_analog_channels;
	97	gboolean ch_enabled[NUM_CHANNELS];
	98	/*
	99	* Since we can't keep track of an fx2lafw device after upgrading
	100	* the firmware (it renumerates into a different device address
	101	* after the upgrade) this is like a global lock. No device will open
	102	* until a proper delay after the last device was upgraded.
	103	*/
	104	int64_t fw_updated;
	105
	106	/* Supported samplerates */
	107	const uint64_t *samplerates;
	108	int num_samplerates;
	109
	110	/* Device/capture settings */
	111	uint64_t cur_samplerate;
	112	uint64_t limit_samples;
	113	uint64_t capture_ratio;
	114
	115	/* Operational settings */
	116	gboolean trigger_fired;
	117	gboolean acq_aborted;
	118	gboolean sample_wide;
	119	struct soft_trigger_logic *stl;
	120
	121	unsigned int sent_samples;
	122	int submitted_transfers;
	123	int empty_transfer_count;
	124
	125	unsigned int num_transfers;
	126	struct libusb_transfer **transfers;
	127	struct sr_context *ctx;
	128	void (send_data_proc)(struct sr_dev_inst sdi,
	129	uint8_t *data, size_t length, size_t sample_width);
	130	uint8_t *logic_buffer;
	131	float *analog_buffer;
	132
	133	/* Is this a DSLogic? */
	134	gboolean dslogic;
	135	uint16_t dslogic_mode;
	136	uint32_t trigger_pos;
	137	int dslogic_external_clock;
	138	};
	139
	140	SR_PRIV int fx2lafw_command_start_acquisition(const struct sr_dev_inst *sdi);
	141	SR_PRIV gboolean match_manuf_prod(libusb_device dev, const char manufacturer,
	142	const char *product);
	143	SR_PRIV int fx2lafw_dev_open(struct sr_dev_inst sdi, struct sr_dev_driver di);
	144	SR_PRIV struct dev_context *fx2lafw_dev_new(void);
	145	SR_PRIV void fx2lafw_abort_acquisition(struct dev_context *devc);
	146	SR_PRIV void LIBUSB_CALL fx2lafw_receive_transfer(struct libusb_transfer *transfer);
	147	SR_PRIV size_t fx2lafw_get_buffer_size(struct dev_context *devc);
	148	SR_PRIV unsigned int fx2lafw_get_number_of_transfers(struct dev_context *devc);
	149	SR_PRIV unsigned int fx2lafw_get_timeout(struct dev_context *devc);
	150	SR_PRIV void la_send_data_proc(struct sr_dev_inst sdi, uint8_t data,
	151	size_t length, size_t sample_width);
	152	SR_PRIV void mso_send_data_proc(struct sr_dev_inst sdi, uint8_t data,
	153	size_t length, size_t sample_width);
	154
	155	#endif