X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fbeaglelogic%2Fapi.c;h=95f53159a85fa073209ad6da1ca5f4eef83ca874;hb=8cd15dd4ce2fdbefbcc6e64632c8006e5404f253;hp=a703adf351cd2e1a1e875dc93d90b646f77ec7fe;hpb=f57d8ffe66612a1fdc20ed09c222f8ea59bd84d4;p=libsigrok.git diff --git a/src/hardware/beaglelogic/api.c b/src/hardware/beaglelogic/api.c index a703adf3..95f53159 100644 --- a/src/hardware/beaglelogic/api.c +++ b/src/hardware/beaglelogic/api.c @@ -1,7 +1,7 @@ /* * This file is part of the libsigrok project. * - * Copyright (C) 2014 Kumar Abhishek + * Copyright (C) 2014-2017 Kumar Abhishek * * 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 @@ -17,29 +17,29 @@ * along with this program. If not, see . */ +#include #include "protocol.h" #include "beaglelogic.h" -SR_PRIV struct sr_dev_driver beaglelogic_driver_info; -static struct sr_dev_driver *di = &beaglelogic_driver_info; - -/* Scan options */ static const uint32_t scanopts[] = { + SR_CONF_CONN, SR_CONF_NUM_LOGIC_CHANNELS, }; -/* Hardware capabilities */ -static const uint32_t devopts[] = { +static const uint32_t drvopts[] = { SR_CONF_LOGIC_ANALYZER, +}; + +static const uint32_t devopts[] = { SR_CONF_CONTINUOUS, SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, - SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET, + SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, + SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, SR_CONF_NUM_LOGIC_CHANNELS | SR_CONF_GET, }; -/* Trigger matching capabilities */ -static const int32_t soft_trigger_matches[] = { +static const int32_t trigger_matches[] = { SR_TRIGGER_ZERO, SR_TRIGGER_ONE, SR_TRIGGER_RISING, @@ -47,10 +47,9 @@ static const int32_t soft_trigger_matches[] = { SR_TRIGGER_EDGE, }; -/* Channels are numbered 0-13 */ -SR_PRIV const char *beaglelogic_channel_names[NUM_CHANNELS + 1] = { - "P8_45", "P8_46", "P8_43", "P8_44", "P8_41", "P8_42", "P8_39", "P8_40", - "P8_27", "P8_29", "P8_28", "P8_30", "P8_21", "P8_20", NULL, +SR_PRIV const char *channel_names[] = { + "P8_45", "P8_46", "P8_43", "P8_44", "P8_41", "P8_42", "P8_39", + "P8_40", "P8_27", "P8_29", "P8_28", "P8_30", "P8_21", "P8_20", }; /* Possible sample rates : 10 Hz to 100 MHz = (100 / x) MHz */ @@ -60,103 +59,97 @@ static const uint64_t samplerates[] = { SR_HZ(1), }; -static int init(struct sr_context *sr_ctx) -{ - return std_init(sr_ctx, di, LOG_PREFIX); -} - -static struct dev_context *beaglelogic_devc_alloc(void) +static GSList *scan(struct sr_dev_driver *di, GSList *options) { - struct dev_context *devc; - - devc = g_malloc0(sizeof(struct dev_context)); - - /* Default non-zero values (if any) */ - devc->fd = -1; - devc->limit_samples = (uint64_t)-1; - - return devc; -} - -static GSList *scan(GSList *options) -{ - struct drv_context *drvc; - GSList *devices, *l; + GSList *l; struct sr_config *src; struct sr_dev_inst *sdi; struct dev_context *devc; - struct sr_channel *ch; + const char *conn; + gchar **params; int i, maxch; - devices = NULL; - drvc = di->priv; - drvc->instances = NULL; - - /* Probe for /dev/beaglelogic */ - if (!g_file_test(BEAGLELOGIC_DEV_NODE, G_FILE_TEST_EXISTS)) - return NULL; - - sdi = g_malloc0(sizeof(struct sr_dev_inst)); - sdi->status = SR_ST_INACTIVE; - sdi->model = g_strdup("BeagleLogic"); - sdi->version = g_strdup("1.0"); - sdi->driver = di; - - /* Unless explicitly specified, keep max channels to 8 only */ - maxch = 8; + maxch = NUM_CHANNELS; + conn = NULL; for (l = options; l; l = l->next) { src = l->data; if (src->key == SR_CONF_NUM_LOGIC_CHANNELS) maxch = g_variant_get_int32(src->data); + if (src->key == SR_CONF_CONN) + conn = g_variant_get_string(src->data, NULL); } - /* We need to test for number of channels by opening the node */ - devc = beaglelogic_devc_alloc(); + /* Probe for /dev/beaglelogic if not connecting via TCP */ + if (!conn) { + params = NULL; + if (!g_file_test(BEAGLELOGIC_DEV_NODE, G_FILE_TEST_EXISTS)) + return NULL; + } else { + params = g_strsplit(conn, "/", 0); + if (!params || !params[1] || !params[2]) { + sr_err("Invalid Parameters."); + g_strfreev(params); + return NULL; + } + if (g_ascii_strncasecmp(params[0], "tcp", 3)) { + sr_err("Only TCP (tcp-raw) protocol is currently supported."); + g_strfreev(params); + return NULL; + } + } - if (beaglelogic_open_nonblock(devc) != SR_OK) { - g_free(devc); - sr_dev_inst_free(sdi); + maxch = (maxch > 8) ? NUM_CHANNELS : 8; - return NULL; - } + sdi = g_new0(struct sr_dev_inst, 1); + sdi->status = SR_ST_INACTIVE; + sdi->model = g_strdup("BeagleLogic"); + sdi->version = g_strdup("1.0"); - if (maxch > 8) { - maxch = NUM_CHANNELS; - devc->sampleunit = BL_SAMPLEUNIT_16_BITS; - } else { - maxch = 8; - devc->sampleunit = BL_SAMPLEUNIT_8_BITS; - } + devc = g_malloc0(sizeof(struct dev_context)); - beaglelogic_set_sampleunit(devc); - beaglelogic_close(devc); + /* Default non-zero values (if any) */ + devc->fd = -1; + devc->limit_samples = 10000000; + devc->tcp_buffer = 0; - /* Signal */ - sr_info("BeagleLogic device found at "BEAGLELOGIC_DEV_NODE); + if (!conn) { + devc->beaglelogic = &beaglelogic_native_ops; + sr_info("BeagleLogic device found at "BEAGLELOGIC_DEV_NODE); + } else { + devc->read_timeout = 1000 * 1000; + devc->beaglelogic = &beaglelogic_tcp_ops; + devc->address = g_strdup(params[1]); + devc->port = g_strdup(params[2]); + g_strfreev(params); + + if (devc->beaglelogic->open(devc) != SR_OK) + goto err_free; + if (beaglelogic_tcp_detect(devc) != SR_OK) + goto err_free; + if (devc->beaglelogic->close(devc) != SR_OK) + goto err_free; + sr_info("BeagleLogic device found at %s : %s", + devc->address, devc->port); + } /* Fill the channels */ - for (i = 0; i < maxch; i++) { - if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, - beaglelogic_channel_names[i]))) - return NULL; - sdi->channels = g_slist_append(sdi->channels, ch); - } + for (i = 0; i < maxch; i++) + sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, + channel_names[i]); sdi->priv = devc; - drvc->instances = g_slist_append(drvc->instances, sdi); - devices = g_slist_append(devices, sdi); - return devices; -} + return std_scan_complete(di, g_slist_append(NULL, sdi)); -static GSList *dev_list(void) -{ - return ((struct drv_context *)(di->priv))->instances; -} +err_free: + g_free(sdi->model); + g_free(sdi->version); + g_free(devc->address); + g_free(devc->port); + g_free(devc); + g_free(sdi); -static int dev_clear(void) -{ - return std_dev_clear(di, NULL); + return NULL; } static int dev_open(struct sr_dev_inst *sdi) @@ -164,29 +157,39 @@ static int dev_open(struct sr_dev_inst *sdi) struct dev_context *devc = sdi->priv; /* Open BeagleLogic */ - if (beaglelogic_open_nonblock(devc)) + if (devc->beaglelogic->open(devc)) return SR_ERR; /* Set fd and local attributes */ - devc->pollfd.fd = devc->fd; + if (devc->beaglelogic == &beaglelogic_tcp_ops) + devc->pollfd.fd = devc->socket; + else + devc->pollfd.fd = devc->fd; devc->pollfd.events = G_IO_IN; + devc->pollfd.revents = 0; /* Get the default attributes */ - beaglelogic_get_samplerate(devc); - beaglelogic_get_sampleunit(devc); - beaglelogic_get_triggerflags(devc); - beaglelogic_get_buffersize(devc); - beaglelogic_get_bufunitsize(devc); + devc->beaglelogic->get_samplerate(devc); + devc->beaglelogic->get_sampleunit(devc); + devc->beaglelogic->get_buffersize(devc); + devc->beaglelogic->get_bufunitsize(devc); + + /* Set the triggerflags to default for continuous capture unless we + * explicitly limit samples using SR_CONF_LIMIT_SAMPLES */ + devc->triggerflags = BL_TRIGGERFLAGS_CONTINUOUS; + devc->beaglelogic->set_triggerflags(devc); /* Map the kernel capture FIFO for reads, saves 1 level of memcpy */ - if (beaglelogic_mmap(devc) != SR_OK) { - sr_err("Unable to map capture buffer"); - beaglelogic_close(devc); - return SR_ERR; + if (devc->beaglelogic == &beaglelogic_native_ops) { + if (devc->beaglelogic->mmap(devc) != SR_OK) { + sr_err("Unable to map capture buffer"); + devc->beaglelogic->close(devc); + return SR_ERR; + } + } else { + devc->tcp_buffer = g_malloc(TCP_BUFFER_SIZE); } - /* We're good to go now */ - sdi->status = SR_ST_ACTIVE; return SR_OK; } @@ -194,59 +197,46 @@ static int dev_close(struct sr_dev_inst *sdi) { struct dev_context *devc = sdi->priv; - if (sdi->status == SR_ST_ACTIVE) { - /* Close the memory mapping and the file */ - beaglelogic_munmap(devc); - beaglelogic_close(devc); - } - sdi->status = SR_ST_INACTIVE; + /* Close the memory mapping and the file */ + if (devc->beaglelogic == &beaglelogic_native_ops) + devc->beaglelogic->munmap(devc); + devc->beaglelogic->close(devc); + return SR_OK; } -static int cleanup(void) +static void clear_helper(struct dev_context *devc) { - struct drv_context *drvc; - struct sr_dev_inst *sdi; - GSList *l; - - /* unused driver */ - if (!(drvc = di->priv)) - return SR_OK; - - /* Clean up the instances */ - for (l = drvc->instances; l; l = l->next) { - sdi = l->data; - di->dev_close(sdi); - g_free(sdi->priv); - sr_dev_inst_free(sdi); - } - g_slist_free(drvc->instances); - drvc->instances = NULL; - - di->priv = NULL; + g_free(devc->tcp_buffer); + g_free(devc->address); + g_free(devc->port); +} - return SR_OK; +static int dev_clear(const struct sr_dev_driver *di) +{ + return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); } -static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, - const struct sr_channel_group *cg) +static int config_get(uint32_t key, GVariant **data, + const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc = sdi->priv; + (void)cg; switch (key) { case SR_CONF_LIMIT_SAMPLES: *data = g_variant_new_uint64(devc->limit_samples); break; - case SR_CONF_SAMPLERATE: *data = g_variant_new_uint64(devc->cur_samplerate); break; - + case SR_CONF_CAPTURE_RATIO: + *data = g_variant_new_uint64(devc->capture_ratio); + break; case SR_CONF_NUM_LOGIC_CHANNELS: *data = g_variant_new_uint32(g_slist_length(sdi->channels)); break; - default: return SR_ERR_NA; } @@ -254,21 +244,18 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s return SR_OK; } -static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, - const struct sr_channel_group *cg) +static int config_set(uint32_t key, GVariant *data, + const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc = sdi->priv; uint64_t tmp_u64; - (void)cg; - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR_DEV_CLOSED; + (void)cg; switch (key) { case SR_CONF_SAMPLERATE: devc->cur_samplerate = g_variant_get_uint64(data); - return beaglelogic_set_samplerate(devc); - + return devc->beaglelogic->set_samplerate(devc); case SR_CONF_LIMIT_SAMPLES: tmp_u64 = g_variant_get_uint64(data); devc->limit_samples = tmp_u64; @@ -280,13 +267,15 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd sr_warn("Insufficient buffer space has been allocated."); sr_warn("Please use \'echo > "\ BEAGLELOGIC_SYSFS_ATTR(memalloc) \ - "\' as root to increase the buffer size, this"\ + "\' to increase the buffer size, this"\ " capture is now truncated to %d Msamples", devc->buffersize / (SAMPLEUNIT_TO_BYTES(devc->sampleunit) * 1000000)); } - return beaglelogic_set_triggerflags(devc); - + return devc->beaglelogic->set_triggerflags(devc); + case SR_CONF_CAPTURE_RATIO: + devc->capture_ratio = g_variant_get_uint64(data); + break; default: return SR_ERR_NA; } @@ -294,122 +283,110 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd return SR_OK; } -static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, - const struct sr_channel_group *cg) +static int config_list(uint32_t key, GVariant **data, + const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { - int ret; - GVariant *gvar; - GVariantBuilder gvb; - - (void)sdi; - (void)data; - (void)cg; - - ret = SR_OK; switch (key) { case SR_CONF_SCAN_OPTIONS: - *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, - scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); - break; case SR_CONF_DEVICE_OPTIONS: - *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, - devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); - break; + return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); case SR_CONF_SAMPLERATE: - g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); - gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), - samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); - g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); - *data = g_variant_builder_end(&gvb); + *data = std_gvar_samplerates_steps(ARRAY_AND_SIZE(samplerates)); break; case SR_CONF_TRIGGER_MATCH: - *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, - soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), - sizeof(int32_t)); + *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches)); break; default: return SR_ERR_NA; } - return ret; + return SR_OK; } /* get a sane timeout for poll() */ #define BUFUNIT_TIMEOUT_MS(devc) (100 + ((devc->bufunitsize * 1000) / \ (uint32_t)(devc->cur_samplerate))) -static int dev_acquisition_start(const struct sr_dev_inst *sdi, - void *cb_data) +static int dev_acquisition_start(const struct sr_dev_inst *sdi) { - (void)cb_data; struct dev_context *devc = sdi->priv; + GSList *l; struct sr_trigger *trigger; - - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR_DEV_CLOSED; - - /* Save user pointer */ - devc->cb_data = cb_data; + struct sr_channel *channel; /* Clear capture state */ devc->bytes_read = 0; devc->offset = 0; /* Configure channels */ - devc->sampleunit = g_slist_length(sdi->channels) > 8 ? - BL_SAMPLEUNIT_16_BITS : BL_SAMPLEUNIT_8_BITS; - beaglelogic_set_sampleunit(devc); + devc->sampleunit = BL_SAMPLEUNIT_8_BITS; + + for (l = sdi->channels; l; l = l->next) { + channel = l->data; + if (channel->index >= 8 && channel->enabled) + devc->sampleunit = BL_SAMPLEUNIT_16_BITS; + } + devc->beaglelogic->set_sampleunit(devc); + + /* If continuous sampling, set the limit_samples to max possible value */ + if (devc->triggerflags == BL_TRIGGERFLAGS_CONTINUOUS) + devc->limit_samples = UINT64_MAX; /* Configure triggers & send header packet */ if ((trigger = sr_session_trigger_get(sdi->session))) { - devc->stl = soft_trigger_logic_new(sdi, trigger); + int pre_trigger_samples = 0; + if (devc->limit_samples > 0) + pre_trigger_samples = (devc->capture_ratio * devc->limit_samples) / 100; + devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples); + if (!devc->stl) + return SR_ERR_MALLOC; devc->trigger_fired = FALSE; } else devc->trigger_fired = TRUE; - std_session_send_df_header(cb_data, LOG_PREFIX); + std_session_send_df_header(sdi); /* Trigger and add poll on file */ - beaglelogic_start(devc); - sr_session_source_add_pollfd(sdi->session, &devc->pollfd, - BUFUNIT_TIMEOUT_MS(devc), beaglelogic_receive_data, + devc->beaglelogic->start(devc); + if (devc->beaglelogic == &beaglelogic_native_ops) + sr_session_source_add_pollfd(sdi->session, &devc->pollfd, + BUFUNIT_TIMEOUT_MS(devc), beaglelogic_native_receive_data, + (void *)sdi); + else + sr_session_source_add_pollfd(sdi->session, &devc->pollfd, + BUFUNIT_TIMEOUT_MS(devc), beaglelogic_tcp_receive_data, (void *)sdi); return SR_OK; } -static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) +static int dev_acquisition_stop(struct sr_dev_inst *sdi) { struct dev_context *devc = sdi->priv; - struct sr_datafeed_packet pkt; - - (void)cb_data; - - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR_DEV_CLOSED; /* Execute a stop on BeagleLogic */ - beaglelogic_stop(devc); + devc->beaglelogic->stop(devc); - /* lseek to offset 0, flushes the cache */ - lseek(devc->fd, 0, SEEK_SET); + /* Flush the cache */ + if (devc->beaglelogic == &beaglelogic_native_ops) + lseek(devc->fd, 0, SEEK_SET); + else + beaglelogic_tcp_drain(devc); /* Remove session source and send EOT packet */ sr_session_source_remove_pollfd(sdi->session, &devc->pollfd); - pkt.type = SR_DF_END; - pkt.payload = NULL; - sr_session_send(sdi, &pkt); + std_session_send_df_end(sdi); return SR_OK; } -SR_PRIV struct sr_dev_driver beaglelogic_driver_info = { +static struct sr_dev_driver beaglelogic_driver_info = { .name = "beaglelogic", .longname = "BeagleLogic", .api_version = 1, - .init = init, - .cleanup = cleanup, + .init = std_init, + .cleanup = std_cleanup, .scan = scan, - .dev_list = dev_list, + .dev_list = std_dev_list, .dev_clear = dev_clear, .config_get = config_get, .config_set = config_set, @@ -418,5 +395,6 @@ SR_PRIV struct sr_dev_driver beaglelogic_driver_info = { .dev_close = dev_close, .dev_acquisition_start = dev_acquisition_start, .dev_acquisition_stop = dev_acquisition_stop, - .priv = NULL, + .context = NULL, }; +SR_REGISTER_DEV_DRIVER(beaglelogic_driver_info);