/*
* This file is part of the sigrok project.
*
- * Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2010-2012 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#ifndef SIGROK_SIGROK_H
-#define SIGROK_SIGROK_H
+#ifndef LIBSIGROK_SIGROK_H
+#define LIBSIGROK_SIGROK_H
#include <stdio.h>
#include <sys/time.h>
#include <stdint.h>
#include <inttypes.h>
#include <glib.h>
-#ifdef HAVE_LIBUSB_1_0
-#include <libusb.h>
-#endif
#ifdef __cplusplus
extern "C" {
#define SR_ERR -1 /* Generic/unspecified error */
#define SR_ERR_MALLOC -2 /* Malloc/calloc/realloc error */
#define SR_ERR_ARG -3 /* Function argument error */
-#define SR_ERR_SAMPLERATE -4 /* Incorrect samplerate */
+#define SR_ERR_BUG -4 /* Errors hinting at internal bugs */
+#define SR_ERR_SAMPLERATE -5 /* Incorrect samplerate */
-#define SR_MAX_NUM_PROBES 64 /* Limited by uint64_t. */
-#define SR_MAX_PROBENAME_LEN 32
+#define SR_MAX_NUM_PROBES 64 /* Limited by uint64_t. */
+#define SR_MAX_PROBENAME_LEN 32
/* Handy little macros */
#define SR_HZ(n) (n)
#define SR_HZ_TO_NS(n) (1000000000 / (n))
+/* libsigrok loglevels. */
+#define SR_LOG_NONE 0 /**< Output no messages at all. */
+#define SR_LOG_ERR 1 /**< Output error messages. */
+#define SR_LOG_WARN 2 /**< Output warnings. */
+#define SR_LOG_INFO 3 /**< Output informational messages. */
+#define SR_LOG_DBG 4 /**< Output debug messages. */
+#define SR_LOG_SPEW 5 /**< Output very noisy debug messages. */
+
+/*
+ * Use SR_API to mark public API symbols, and SR_PRIV for private symbols.
+ *
+ * Variables and functions marked 'static' are private already and don't
+ * need SR_PRIV. However, functions which are not static (because they need
+ * to be used in other libsigrok-internal files) but are also not meant to
+ * be part of the public libsigrok API, must use SR_PRIV.
+ *
+ * This uses the 'visibility' feature of gcc (requires gcc >= 4.0).
+ *
+ * Details: http://gcc.gnu.org/wiki/Visibility
+ */
+
+/* Marks public libsigrok API symbols. */
+#define SR_API __attribute__((visibility("default")))
+
+/* Marks private, non-public libsigrok symbols (not part of the API). */
+#define SR_PRIV __attribute__((visibility("hidden")))
+
typedef int (*sr_receive_data_callback) (int fd, int revents, void *user_data);
-/* Data types used by hardware plugins for set_configuration() */
+/* Data types used by hardware drivers for dev_config_set() */
enum {
SR_T_UINT64,
SR_T_CHAR,
- SR_T_NULL,
-};
-
-enum {
- SR_PROTO_RAW,
-};
-
-#if 0
-/* (Unused) protocol decoder stack entry */
-struct sr_protocol {
- char *name;
- int id;
- int stackindex;
+ SR_T_BOOL,
};
-#endif
/* sr_datafeed_packet.type values */
enum {
SR_DF_END,
SR_DF_TRIGGER,
SR_DF_LOGIC,
- SR_DF_ANALOG,
SR_DF_PD,
};
struct sr_datafeed_packet {
uint16_t type;
- uint64_t length;
- uint16_t unitsize;
void *payload;
};
int feed_version;
struct timeval starttime;
uint64_t samplerate;
- int protocol_id;
- int num_analog_probes;
int num_logic_probes;
};
-#if defined(HAVE_LA_ALSA)
-struct sr_analog_probe {
- uint8_t att;
- uint8_t res; /* Needs to be a power of 2, FIXME */
- uint16_t val; /* Max hardware ADC width is 16bits */
-};
-
-struct sr_analog_sample {
- uint8_t num_probes; /* Max hardware probes is 256 */
- struct sr_analog_probe probes[];
+struct sr_datafeed_logic {
+ uint64_t length;
+ uint16_t unitsize;
+ void *data;
};
-#endif
struct sr_input {
struct sr_input_format *format;
char *param;
- struct sr_device *vdevice;
+ struct sr_dev *vdev;
};
struct sr_input_format {
struct sr_output {
struct sr_output_format *format;
- struct sr_device *device;
+ struct sr_dev *dev;
char *param;
void *internal;
};
uint64_t *length_out);
};
-#if 0
-struct sr_analyzer {
- char *name;
- char *filename;
- /*
- * TODO: Parameters? If so, configured plugins need another struct.
- * TODO: Input and output format?
- */
-};
-#endif
-
struct sr_datastore {
/* Size in bytes of the number of units stored in this datastore */
int ds_unitsize;
/*
* This represents a generic device connected to the system.
- * For device-specific information, ask the plugin. The plugin_index refers
- * to the device index within that plugin; it may be handling more than one
- * device. All relevant plugin calls take a device_index parameter for this.
+ * For device-specific information, ask the driver. The driver_index refers
+ * to the device index within that driver; it may be handling more than one
+ * device. All relevant driver calls take a dev_index parameter for this.
*/
-struct sr_device {
- /* Which plugin handles this device */
- struct sr_device_plugin *plugin;
- /* A plugin may handle multiple devices of the same type */
- int plugin_index;
+struct sr_dev {
+ /* Which driver handles this device */
+ struct sr_dev_driver *driver;
+ /* A driver may handle multiple devices of the same type */
+ int driver_index;
/* List of struct sr_probe* */
GSList *probes;
/* Data acquired by this device, if any */
enum {
SR_PROBE_TYPE_LOGIC,
- SR_PROBE_TYPE_ANALOG,
};
struct sr_probe {
char *trigger;
};
-/* TODO: Get rid of this global variable. */
-extern GSList *devices;
-
-/* Hardware plugin capabilities */
+/* Hardware driver capabilities */
enum {
- SR_HWCAP_DUMMY, /* Used to terminate lists */
- /* device classes */
+ SR_HWCAP_DUMMY = 0, /* Used to terminate lists. Must be 0! */
+
+ /*--- Device classes ------------------------------------------------*/
+
+ /** The device can act as logic analyzer. */
SR_HWCAP_LOGIC_ANALYZER,
- /* device options */
- SR_HWCAP_SAMPLERATE, /* Change samplerate */
- SR_HWCAP_PROBECONFIG, /* Configure probe mask */
- SR_HWCAP_CAPTURE_RATIO, /* Set pre/post-trigger capture ratio */
- SR_HWCAP_PATTERN_MODE, /* Pattern generator mode */
+ /* TODO: SR_HWCAP_SCOPE, SW_HWCAP_PATTERN_GENERATOR, etc.? */
+
+ /*--- Device types --------------------------------------------------*/
+
+ /** The device is demo device. */
+ SR_HWCAP_DEMO_DEV,
+
+ /*--- Device options ------------------------------------------------*/
+
+ /** The device supports setting/changing its samplerate. */
+ SR_HWCAP_SAMPLERATE,
+
+ /* TODO: Better description? Rename to PROBE_AND_TRIGGER_CONFIG? */
+ /** The device supports setting a probe mask. */
+ SR_HWCAP_PROBECONFIG,
+
+ /** The device supports setting a pre/post-trigger capture ratio. */
+ SR_HWCAP_CAPTURE_RATIO,
+
+ /* TODO? */
+ /** The device supports setting a pattern (pattern generator mode). */
+ SR_HWCAP_PATTERN_MODE,
+
+ /** The device supports Run Length Encoding. */
+ SR_HWCAP_RLE,
+
+ /*--- Special stuff -------------------------------------------------*/
+
+ /* TODO: Better description. */
+ /** The device supports specifying a capturefile to inject. */
+ SR_HWCAP_CAPTUREFILE,
- /* special stuff */
- SR_HWCAP_CAPTUREFILE, /* capturefile to inject */
- SR_HWCAP_CAPTURE_UNITSIZE, /* unitsize of capturefile data */
- SR_HWCAP_CAPTURE_NUM_PROBES,/* set number of probes */
+ /* TODO: Better description. */
+ /** The device supports specifying the capturefile unit size. */
+ SR_HWCAP_CAPTURE_UNITSIZE,
- /* acquisition modes */
- SR_HWCAP_LIMIT_MSEC, /* Set a time limit for sample acquisition */
- SR_HWCAP_LIMIT_SAMPLES, /* Set a limit on number of samples */
+ /* TODO: Better description. */
+ /** The device supports setting the number of probes. */
+ SR_HWCAP_CAPTURE_NUM_PROBES,
+
+ /*--- Acquisition modes ---------------------------------------------*/
+
+ /**
+ * The device supports setting a sample time limit, i.e. how long the
+ * sample acquisition should run (in ms).
+ */
+ SR_HWCAP_LIMIT_MSEC,
+
+ /**
+ * The device supports setting a sample number limit, i.e. how many
+ * samples should be acquired.
+ */
+ SR_HWCAP_LIMIT_SAMPLES,
+
+ /**
+ * The device supports continuous sampling, i.e. neither a time limit
+ * nor a sample number limit has to be supplied, it will just acquire
+ * samples continuously, until explicitly stopped by a certain command.
+ */
SR_HWCAP_CONTINUOUS,
+
+ /* TODO: SR_HWCAP_JUST_SAMPLE or similar. */
};
struct sr_hwcap_option {
- int capability;
+ int hwcap;
int type;
char *description;
char *shortname;
};
-struct sr_device_instance {
+struct sr_dev_inst {
int index;
int status;
- int instance_type;
+ int inst_type;
char *vendor;
char *model;
char *version;
void *priv;
- union {
- struct sr_usb_device_instance *usb;
- struct sr_serial_device_instance *serial;
- };
};
-/* sr_device_instance types */
+/* sr_dev_inst types */
enum {
- SR_USB_INSTANCE,
- SR_SERIAL_INSTANCE,
-};
-
-#ifdef HAVE_LIBUSB_1_0
-struct sr_usb_device_instance {
- uint8_t bus;
- uint8_t address;
- struct libusb_device_handle *devhdl;
-};
-#endif
-
-struct sr_serial_device_instance {
- char *port;
- int fd;
+ SR_USB_INST,
+ SR_SERIAL_INST,
};
/* Device instance status */
/* Device info IDs */
enum {
- /* struct sr_device_instance for this specific device */
- SR_DI_INSTANCE,
+ /* struct sr_dev_inst for this specific device */
+ SR_DI_INST,
/* The number of probes connected to this device */
SR_DI_NUM_PROBES,
+ /* The probe names on this device */
+ SR_DI_PROBE_NAMES,
/* Samplerates supported by this device, (struct sr_samplerates) */
SR_DI_SAMPLERATES,
/* Types of trigger supported, out of "01crf" (char *) */
uint64_t *list;
};
-struct sr_device_plugin {
- /* Plugin-specific */
+struct sr_dev_driver {
+ /* Driver-specific */
char *name;
char *longname;
int api_version;
- int (*init) (const char *deviceinfo);
- void (*cleanup) (void);
+ int (*init) (const char *devinfo);
+ int (*cleanup) (void);
/* Device-specific */
- int (*open) (int device_index);
- void (*close) (int device_index);
- void *(*get_device_info) (int device_index, int device_info_id);
- int (*get_status) (int device_index);
- int *(*get_capabilities) (void);
- int (*set_configuration) (int device_index, int capability, void *value);
- int (*start_acquisition) (int device_index, gpointer session_device_id);
- void (*stop_acquisition) (int device_index, gpointer session_device_id);
+ int (*dev_open) (int dev_index);
+ int (*dev_close) (int dev_index);
+ void *(*dev_info_get) (int dev_index, int dev_info_id);
+ int (*dev_status_get) (int dev_index);
+ int *(*hwcap_get_all) (void);
+ int (*dev_config_set) (int dev_index, int hwcap, void *value);
+ int (*dev_acquisition_start) (int dev_index, gpointer session_dev_id);
+ int (*dev_acquisition_stop) (int dev_index, gpointer session_dev_id);
};
struct sr_session {
- /* List of struct sr_device* */
- GSList *devices;
- /* List of struct analyzer* */
- GSList *analyzers;
+ /* List of struct sr_dev* */
+ GSList *devs;
/* list of sr_receive_data_callback */
GSList *datafeed_callbacks;
GTimeVal starttime;
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