/*
* This file is part of the libsigrok project.
*
+ * Copyright (C) 2022 Gerhard Sittig <gerhard.sittig@gmx.net>
* Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de>
* Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
* 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 LA2016_USB_BUFSZ (512 * 1024) /* 512KiB buffer. */
+#define LA2016_USB_XFER_COUNT 8 /* Size of USB bulk transfers pool. */
/* USB communication timeout during regular operation. */
#define DEFAULT_TIMEOUT_MS 200
+#define CAPTURE_TIMEOUT_MS 500
/*
* Check for MCU firmware to take effect after upload. Check the device
* The device expects some zero padding to follow the content of the
* file which contains the FPGA bitstream. Specify the chunk size here.
*/
-#define LA2016_EP2_PADDING 2048
+#define LA2016_EP2_PADDING 4096
+
+/*
+ * Whether the logic input threshold voltage is a config item of the
+ * "Logic" channel group or a global config item of the device. Ideally
+ * it would be the former (being strictly related to the Logic channels)
+ * but mainline applications work better with the latter, and many other
+ * device drivers implement it that way, too.
+ */
+#define WITH_THRESHOLD_DEVCFG 1
#define LA2016_THR_VOLTAGE_MIN 0.40
#define LA2016_THR_VOLTAGE_MAX 4.00
-#define LA2016_NUM_SAMPLES_MIN (UINT64_C(256))
+/* Properties related to the layout of capture data downloads. */
+#define TRANSFER_PACKET_LENGTH 16
#define LA2016_NUM_SAMPLES_MAX (UINT64_C(10 * 1000 * 1000 * 1000))
/* Maximum device capabilities. May differ between models. */
-#define MAX_SAMPLE_RATE_LA2016 SR_MHZ(200)
-#define MAX_SAMPLE_RATE_LA1016 SR_MHZ(100)
-#define MIN_SAMPLE_RATE_LA2016 SR_KHZ(10)
#define MAX_PWM_FREQ SR_MHZ(20)
#define PWM_CLOCK SR_MHZ(200) /* 200MHz for both LA2016 and LA1016 */
-/* TODO
- * What is the origin and motivation of that 128Mi literal? What is its
- * unit? How does it relate to a device's hardware capabilities? How to
- * map the 1GiB of RAM of an LA2016 (at 16 channels) to the 128Mi value?
- * It cannot be sample count. Is it memory size in bytes perhaps?
- */
-#define LA2016_PRE_MEM_LIMIT_BASE (128 * 1024 * 1024)
-
#define LA2016_NUM_PWMCH_MAX 2
-#define LA2016_CONVBUFFER_SIZE (4 * 1024 * 1024)
-
-struct pwm_setting_dev {
- uint32_t period;
- uint32_t duty;
-};
-
-struct trigger_cfg {
- uint32_t channels;
- uint32_t enabled;
- uint32_t level;
- uint32_t high_or_falling;
-};
+/* Streaming mode related thresholds. Not enforced, used for warnings. */
+#define LA2016_STREAM_MBPS_MAX 200 /* In units of Mbps. */
+#define LA2016_STREAM_PUSH_THR 16 /* In units of Mbps. */
+#define LA2016_STREAM_PUSH_IVAL 250 /* In units of ms. */
-struct capture_info {
- uint32_t n_rep_packets;
- uint32_t n_rep_packets_before_trigger;
- uint32_t write_pos;
-};
+/*
+ * Whether to de-initialize the device hardware in the driver's close
+ * callback. It is desirable to e.g. configure PWM channels and leave
+ * the generator running after the application shuts down. Users can
+ * always disable channels on their way out if they want to.
+ */
+#define WITH_DEINIT_IN_CLOSE 0
-#define NUM_PACKETS_IN_CHUNK 5
-#define TRANSFER_PACKET_LENGTH 16
+#define LA2016_CONVBUFFER_SIZE (4 * 1024 * 1024)
-struct pwm_setting {
- gboolean enabled;
- float freq;
- float duty;
+struct kingst_model {
+ uint8_t magic, magic2; /* EEPROM magic byte values. */
+ const char *name; /* User perceived model name. */
+ const char *fpga_stem; /* Bitstream filename stem. */
+ uint64_t samplerate; /* Max samplerate in Hz. */
+ size_t channel_count; /* Max channel count (16, 32). */
+ uint64_t memory_bits; /* RAM capacity in Gbit (1, 2, 4). */
+ uint64_t baseclock; /* Base clock to derive samplerate from. */
};
struct dev_context {
+ uint16_t usb_pid;
+ char *mcu_firmware;
+ char *fpga_bitstream;
uint64_t fw_uploaded; /* Timestamp of most recent FW upload. */
+ uint8_t identify_magic, identify_magic2;
+ const struct kingst_model *model;
+ char **channel_names_logic;
+ struct sr_channel_group *cg_logic, *cg_pwm;
/* User specified parameters. */
- struct pwm_setting pwm_setting[LA2016_NUM_PWMCH_MAX];
+ struct pwm_setting {
+ gboolean enabled;
+ float freq;
+ float duty;
+ } pwm_setting[LA2016_NUM_PWMCH_MAX];
size_t threshold_voltage_idx;
- float threshold_voltage;
- uint64_t max_samplerate;
- uint64_t cur_samplerate;
- uint64_t limit_samples;
+ uint64_t samplerate;
+ struct sr_sw_limits sw_limits;
uint64_t capture_ratio;
+ gboolean continuous;
/* Internal acquisition and download state. */
gboolean trigger_involved;
+ gboolean frame_begin_sent;
gboolean completion_seen;
gboolean download_finished;
- struct capture_info info;
+ uint32_t packets_per_chunk;
+ struct capture_info {
+ uint32_t n_rep_packets;
+ uint32_t n_rep_packets_before_trigger;
+ uint32_t write_pos;
+ } info;
uint32_t n_transfer_packets_to_read; /* each with 5 acq packets */
uint32_t n_bytes_to_read;
uint32_t n_reps_until_trigger;
uint64_t total_samples;
uint32_t read_pos;
- size_t convbuffer_size;
- uint8_t *convbuffer;
- struct libusb_transfer *transfer;
+ struct feed_queue_logic *feed_queue;
+ GSList *transfers;
+ size_t transfer_bufsize;
+ struct stream_state_t {
+ size_t enabled_count;
+ uint32_t enabled_mask;
+ uint32_t channel_masks[32];
+ size_t channel_index;
+ uint32_t sample_data[32];
+ uint64_t flush_period_ms;
+ uint64_t last_flushed;
+ } stream;
};
-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_upload_firmware(const struct sr_dev_inst *sdi,
+ struct sr_context *sr_ctx, libusb_device *dev, gboolean skip_upload);
+SR_PRIV int la2016_identify_device(const struct sr_dev_inst *sdi,
+ gboolean show_message);
+SR_PRIV int la2016_init_hardware(const struct sr_dev_inst *sdi);
+SR_PRIV int la2016_deinit_hardware(const struct sr_dev_inst *sdi);
+SR_PRIV int la2016_write_pwm_config(const struct sr_dev_inst *sdi, size_t idx);
+SR_PRIV int la2016_setup_acquisition(const struct sr_dev_inst *sdi,
+ double voltage);
SR_PRIV int la2016_start_acquisition(const struct sr_dev_inst *sdi);
SR_PRIV int la2016_abort_acquisition(const struct sr_dev_inst *sdi);
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);
+SR_PRIV void la2016_release_resources(const struct sr_dev_inst *sdi);
#endif
projects / libsigrok.git / blobdiff