From: Benjamin Larsson Date: Mon, 25 Apr 2016 21:46:19 +0000 (+0200) Subject: fx2lafw: Add working glue layer for frontends X-Git-Tag: libsigrok-0.5.0~485 X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=7fb90f94d62597224509472906fd8a33c3f3a1d2;p=libsigrok.git fx2lafw: Add working glue layer for frontends --- diff --git a/src/hardware/fx2lafw/api.c b/src/hardware/fx2lafw/api.c index 68bff5e1..c6b14565 100644 --- a/src/hardware/fx2lafw/api.c +++ b/src/hardware/fx2lafw/api.c @@ -133,15 +133,6 @@ static const uint32_t devopts[] = { SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, }; -static const char *channel_names[] = { - "0", "1", "2", "3", "4", "5", "6", "7", - "8", "9", "10", "11", "12", "13", "14", "15", -}; - -static const char *ax_channel_names[] = { - "A0", -}; - static const int32_t soft_trigger_matches[] = { SR_TRIGGER_ZERO, SR_TRIGGER_ONE, @@ -201,6 +192,8 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) struct dev_context *devc; struct sr_dev_inst *sdi; struct sr_usb_dev_inst *usb; + struct sr_channel *ch; + struct sr_channel_group *cg; struct sr_config *src; const struct fx2lafw_profile *prof; GSList *l, *devices, *conn_devices; @@ -212,6 +205,7 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) int num_logic_channels = 0, num_analog_channels = 0; const char *conn; char manufacturer[64], product[64], serial_num[64], connection_id[64]; + char channel_name[16]; drvc = di->context; @@ -316,17 +310,33 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8; num_analog_channels = prof->dev_caps & DEV_CAPS_AX_ANALOG ? 1 : 0; - for (j = 0; j < num_logic_channels; j++) - sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, - channel_names[j]); - - for (j = 0; j < num_analog_channels; j++) - sr_channel_new(sdi, j, SR_CHANNEL_ANALOG, TRUE, - ax_channel_names[j]); + /* Logic channels, all in one channel group. */ + cg = g_malloc0(sizeof(struct sr_channel_group)); + cg->name = g_strdup("Logic"); + for (j = 0; j < num_logic_channels; j++) { + sprintf(channel_name, "D%d", j); + ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, + TRUE, channel_name); + cg->channels = g_slist_append(cg->channels, ch); + } + sdi->channel_groups = g_slist_append(NULL, cg); + + for (j = 0; j < num_analog_channels; j++) { + snprintf(channel_name, 16, "A%d", j); + ch = sr_channel_new(sdi, j + num_logic_channels, + SR_CHANNEL_ANALOG, TRUE, channel_name); + + /* Every analog channel gets its own channel group. */ + cg = g_malloc0(sizeof(struct sr_channel_group)); + cg->name = g_strdup(channel_name); + cg->channels = g_slist_append(NULL, ch); + sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); + } devc = fx2lafw_dev_new(); devc->profile = prof; - devc->sample_wide = (prof->dev_caps & DEV_CAPS_16BIT) != 0; + if ((prof->dev_caps & DEV_CAPS_16BIT) || (prof->dev_caps & DEV_CAPS_AX_ANALOG)) + devc->sample_wide = TRUE; sdi->priv = devc; drvc->instances = g_slist_append(drvc->instances, sdi); devices = g_slist_append(devices, sdi); @@ -375,6 +385,20 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) return devices; } +static void clear_dev_context(void *priv) +{ + struct dev_context *devc; + + devc = priv; + g_slist_free(devc->enabled_analog_channels); + g_free(devc); +} + +static int dev_clear(const struct sr_dev_driver *di) +{ + return std_dev_clear(di, clear_dev_context); +} + static GSList *dev_list(const struct sr_dev_driver *di) { return ((struct drv_context *)(di->context))->instances; @@ -799,6 +823,31 @@ static int dslogic_trigger_request(const struct sr_dev_inst *sdi) return ret; } +static int configure_channels(const struct sr_dev_inst *sdi) +{ + struct dev_context *devc; + const GSList *l; + int p; + struct sr_channel *ch; + + devc = sdi->priv; + + g_slist_free(devc->enabled_analog_channels); + devc->enabled_analog_channels = NULL; + memset(devc->ch_enabled, 0, sizeof(devc->ch_enabled)); + + for (l = sdi->channels, p = 0; l; l = l->next, p++) { + ch = l->data; + if ((p <= NUM_CHANNELS) && (ch->type == SR_CHANNEL_ANALOG)) { + devc->ch_enabled[p] = ch->enabled; + devc->enabled_analog_channels = + g_slist_append(devc->enabled_analog_channels, ch); + } + } + + return SR_OK; +} + static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) { struct sr_dev_driver *di; @@ -820,6 +869,11 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) devc->empty_transfer_count = 0; devc->acq_aborted = FALSE; + if (configure_channels(sdi) != SR_OK) { + sr_err("Failed to configure channels."); + return SR_ERR; + } + timeout = fx2lafw_get_timeout(devc); usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc); @@ -868,7 +922,7 @@ SR_PRIV struct sr_dev_driver fx2lafw_driver_info = { .cleanup = cleanup, .scan = scan, .dev_list = dev_list, - .dev_clear = NULL, + .dev_clear = dev_clear, .config_get = config_get, .config_set = config_set, .config_list = config_list, diff --git a/src/hardware/fx2lafw/protocol.c b/src/hardware/fx2lafw/protocol.c index 5d0eba59..fce69ac4 100644 --- a/src/hardware/fx2lafw/protocol.c +++ b/src/hardware/fx2lafw/protocol.c @@ -125,6 +125,8 @@ SR_PRIV int fx2lafw_command_start_acquisition(const struct sr_dev_inst *sdi) /* Select the sampling width. */ cmd.flags |= devc->sample_wide ? CMD_START_FLAGS_SAMPLE_16BIT : CMD_START_FLAGS_SAMPLE_8BIT; + /* Enable CTL2 clock. */ + cmd.flags |= (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG) ? CMD_START_FLAGS_CLK_CTL2 : 0; /* Send the control message. */ ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR | @@ -393,12 +395,11 @@ SR_PRIV void mso_send_data_proc(struct dev_context *devc, sample_width = sample_width; length /= 2; - sr_dbg("mso_send_data_proc length = %d", length); - /* Send the logic */ for(i = 0; i < length; i++) { devc->logic_buffer[i] = data[i * 2]; - devc->analog_buffer[i] = data[i * 2 + 1] - 128.0f; + /* Rescale to -10V - +10V from 0-255. */ + devc->analog_buffer[i] = data[i * 2 + 1] - 128.0f / 12.8f; }; const struct sr_datafeed_logic logic = { @@ -414,10 +415,11 @@ SR_PRIV void mso_send_data_proc(struct dev_context *devc, sr_session_send(devc->cb_data, &logic_packet); const struct sr_datafeed_analog_old analog = { + .channels = devc->enabled_analog_channels, .num_samples = length, .mq = SR_MQ_VOLTAGE, .unit = SR_UNIT_VOLT, - .mqflags = SR_MQFLAG_DC, + .mqflags = 0 /*SR_MQFLAG_DC*/, .data = devc->analog_buffer }; @@ -425,8 +427,6 @@ SR_PRIV void mso_send_data_proc(struct dev_context *devc, .type = SR_DF_ANALOG_OLD, .payload = &analog }; - - sr_dbg("mso_send_data_proc length = %d", length); sr_session_send(devc->cb_data, &analog_packet); } diff --git a/src/hardware/fx2lafw/protocol.h b/src/hardware/fx2lafw/protocol.h index f6f87b0c..4c2f65f1 100644 --- a/src/hardware/fx2lafw/protocol.h +++ b/src/hardware/fx2lafw/protocol.h @@ -39,6 +39,8 @@ #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) @@ -66,7 +68,7 @@ #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) +#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) @@ -91,6 +93,8 @@ struct fx2lafw_profile { 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