#ifndef LIBSIGROK_HARDWARE_KINGST_LA2016_PROTOCOL_H
#define LIBSIGROK_HARDWARE_KINGST_LA2016_PROTOCOL_H
-#include <stdint.h>
-#include <glib.h>
#include <libsigrok/libsigrok.h>
-#include "libsigrok-internal.h"
-
-#define LOG_PREFIX "kingst-la2016"
+#include <stdint.h>
-/* device is little endian */
+#define LOG_PREFIX "kingst-la2016"
#define LA2016_VID 0x77a1
#define LA2016_PID 0x01a2
#define USB_INTERFACE 0
+#define USB_CONFIGURATION 1
-#define LA2016_BULK_MAX 8388608
+/*
+ * On Windows sigrok uses WinUSB RAW_IO policy which requires the
+ * USB transfer buffer size to be a multiple of the endpoint max packet
+ * size, which is 512 bytes in this case. Also, the maximum allowed size
+ * of the transfer buffer is normally read from WinUSB_GetPipePolicy API
+ * but libusb does not expose this function. Typically, max size is 2MB.
+ */
+#define LA2016_EP6_PKTSZ 512 /* Max packet size of USB endpoint 6. */
+#define LA2016_USB_BUFSZ (256 * 2 * LA2016_EP6_PKTSZ) /* 256KiB buffer. */
#define MAX_RENUM_DELAY_MS 3000
-#define DEFAULT_TIMEOUT_MS 200
+#define DEFAULT_TIMEOUT_MS 200
-#define LA2016_THR_VOLTAGE_MIN 0.40
-#define LA2016_THR_VOLTAGE_MAX 4.00
+#define LA2016_THR_VOLTAGE_MIN 0.40
+#define LA2016_THR_VOLTAGE_MAX 4.00
-#define LA2016_NUM_SAMPLES_MIN 256
-#define LA2016_NUM_SAMPLES_MAX (10UL * 1000 * 1000 * 1000)
+#define LA2016_NUM_SAMPLES_MIN 256
+#define LA2016_NUM_SAMPLES_MAX (10UL * 1000 * 1000 * 1000)
typedef struct pwm_setting_dev {
uint32_t period;
uint32_t duty;
-} __attribute__((__packed__)) pwm_setting_dev_t;
+} pwm_setting_dev_t;
typedef struct trigger_cfg {
uint32_t channels;
uint32_t enabled;
uint32_t level;
uint32_t high_or_falling;
-} __attribute__((__packed__)) trigger_cfg_t;
-
-typedef struct sample_config {
- uint32_t sample_depth;
- uint32_t psa;
- uint16_t u1;
- uint32_t u2;
- uint16_t clock_divisor;
-} __attribute__((__packed__)) sample_config_t;
+} trigger_cfg_t;
typedef struct capture_info {
uint32_t n_rep_packets;
uint32_t n_rep_packets_before_trigger;
uint32_t write_pos;
-} __attribute__((__packed__)) capture_info_t;
+} capture_info_t;
-typedef struct acq_packet {
- uint16_t state;
- uint8_t repetitions;
-} __attribute__((__packed__)) acq_packet_t;
-
-typedef struct transfer_packet {
- acq_packet_t packet[5];
- uint8_t seq;
-} __attribute__((__packed__)) transfer_packet_t;
+#define NUM_PACKETS_IN_CHUNK 5
+#define TRANSFER_PACKET_LENGTH 16
typedef struct pwm_setting {
uint8_t enabled;
float freq;
float duty;
- pwm_setting_dev_t dev;
} pwm_setting_t;
struct dev_context {
struct sr_context *ctx;
int64_t fw_updated;
+
+ /* User specified parameters. */
pwm_setting_t pwm_setting[2];
unsigned int threshold_voltage_idx;
float threshold_voltage;
+ uint64_t max_samplerate;
uint64_t cur_samplerate;
uint64_t limit_samples;
uint64_t capture_ratio;
uint16_t cur_channels;
int num_channels;
- /* derived stuff */
+ uint32_t bitstream_size;
+
+ /* Values derived from user specs. */
uint64_t pre_trigger_size;
- /* state after sampling */
+ /* Internal acquisition and download state. */
int had_triggers_configured;
int have_trigger;
int transfer_finished;
SR_PRIV int la2016_upload_firmware(struct sr_context *sr_ctx, libusb_device *dev, uint16_t product_id);
SR_PRIV int la2016_setup_acquisition(const struct sr_dev_inst *sdi);
SR_PRIV int la2016_start_acquisition(const struct sr_dev_inst *sdi);
-SR_PRIV int la2016_stop_acquisition(const struct sr_dev_inst *sdi);
SR_PRIV int la2016_abort_acquisition(const struct sr_dev_inst *sdi);
-SR_PRIV int la2016_has_triggered(const struct sr_dev_inst *sdi);
-SR_PRIV int la2016_start_retrieval(const struct sr_dev_inst *sdi, libusb_transfer_cb_fn cb);
+SR_PRIV int la2016_receive_data(int fd, int revents, void *cb_data);
SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi);
SR_PRIV int la2016_deinit_device(const struct sr_dev_inst *sdi);
-#ifndef WORDS_BIGENDIAN
-/* this host is big-endian, need to swap from/to device inplace */
-#define inplace_WL32(obj) do { uint32_t tmp = obj; WL32(&(obj), tmp); } while (0)
-#define inplace_RL32(obj) obj = RL32(&(obj))
-#define inplace_WL16(obj) do { uint16_t tmp = obj; WL16(&(obj), tmp); } while (0)
-#define inplace_RL16(obj) obj = RL16(&(obj))
-
-#define pwm_setting_dev_le(obj) do { \
- inplace_WL32((obj).period); \
- inplace_WL32((obj).duty); \
- } while (0)
-#define trigger_cfg_le(obj) do { \
- inplace_WL32((obj).channels); \
- inplace_WL32((obj).enabled); \
- inplace_WL32((obj).level); \
- inplace_WL32((obj).high_or_falling); \
- } while (0)
-#define sample_config_le(obj) do { \
- inplace_WL32((obj).sample_depth); \
- inplace_WL32((obj).psa); \
- inplace_WL16((obj).u1); \
- inplace_WL32((obj).u2); \
- inplace_WL16((obj).clock_divisor); \
- } while (0)
-
-#define capture_info_host(obj) do { \
- inplace_RL32((obj).n_rep_packets); \
- inplace_RL32((obj).n_rep_packets_before_trigger); \
- inplace_RL32((obj).write_pos); \
- } while (0)
-#define acq_packet_host(obj) \
- inplace_RL16((obj).state)
-#define transfer_packet_host(obj) do { \
- acq_packet_host((obj).packet[0]); \
- acq_packet_host((obj).packet[1]); \
- acq_packet_host((obj).packet[2]); \
- acq_packet_host((obj).packet[3]); \
- acq_packet_host((obj).packet[4]); \
- } while (0)
-
-#else
-/* this host is little-endian, same as device */
-#define pwm_setting_dev_le(obj) (void)obj
-#define trigger_cfg_le(obj) (void)obj
-#define sample_config_le(obj) (void)obj
-
-#define capture_info_host(obj) (void)obj
-#define acq_packet_host(obj) (void)obj
-#define transfer_packet_host(obj) (void)obj
-#endif
-
#endif
projects / libsigrok.git / blobdiff