X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fftdi-la%2Fapi.c;h=d435c64a8bab49d5cbea94fc3e001c84123a753a;hb=463160cbca37367ef94dfead0c64531d82b83ab8;hp=144279851e29567dc0a9edd485b3fab7069cd250;hpb=7b6072d3546ebec08f4bc7861d985c667c55e02f;p=libsigrok.git diff --git a/src/hardware/ftdi-la/api.c b/src/hardware/ftdi-la/api.c index 14427985..d435c64a 100644 --- a/src/hardware/ftdi-la/api.c +++ b/src/hardware/ftdi-la/api.c @@ -24,15 +24,16 @@ #include "libsigrok-internal.h" #include "protocol.h" -SR_PRIV struct sr_dev_driver ftdi_la_driver_info; - static const uint32_t scanopts[] = { SR_CONF_CONN, }; -static const uint32_t devopts[] = { +static const uint32_t drvopts[] = { SR_CONF_LOGIC_ANALYZER, - SR_CONF_CONTINUOUS | SR_CONF_SET, +}; + +static const uint32_t devopts[] = { + SR_CONF_CONTINUOUS, SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, SR_CONF_CONN | SR_CONF_GET, @@ -84,22 +85,16 @@ static const struct ftdi_chip_desc *chip_descs[] = { &ft232r_desc, }; -static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) -{ - return std_init(sr_ctx, di, LOG_PREFIX); -} - -static void scan_device(struct sr_dev_driver *di, struct libusb_device *dev, GSList **devices) +static void scan_device(struct ftdi_context *ftdic, + struct libusb_device *dev, GSList **devices) { struct libusb_device_descriptor usb_desc; const struct ftdi_chip_desc *desc; struct dev_context *devc; char *vendor, *model, *serial_num; struct sr_dev_inst *sdi; - struct drv_context *drvc; int rv; - drvc = di->context; libusb_get_device_descriptor(dev, &usb_desc); desc = NULL; @@ -116,27 +111,18 @@ static void scan_device(struct sr_dev_driver *di, struct libusb_device *dev, GSL return; } - /* Allocate memory for our private device context. */ devc = g_malloc0(sizeof(struct dev_context)); /* Allocate memory for the incoming data. */ devc->data_buf = g_malloc0(DATA_BUF_SIZE); - /* Allocate memory for the FTDI context (ftdic) and initialize it. */ - devc->ftdic = ftdi_new(); - if (!devc->ftdic) { - sr_err("Failed to initialize libftdi."); - goto err_free_data_buf; - } - - devc->usbdev = dev; devc->desc = desc; vendor = g_malloc(32); model = g_malloc(32); serial_num = g_malloc(32); - rv = ftdi_usb_get_strings(devc->ftdic, dev, vendor, 32, - model, 32, serial_num, 32); + rv = ftdi_usb_get_strings(ftdic, dev, vendor, 32, + model, 32, serial_num, 32); switch (rv) { case 0: break; @@ -151,80 +137,62 @@ static void scan_device(struct sr_dev_driver *di, struct libusb_device *dev, GSL } sr_dbg("Found an FTDI device: %s.", model); - /* Register the device with libsigrok. */ sdi = g_malloc0(sizeof(struct sr_dev_inst)); - sdi->status = SR_ST_INITIALIZING; + sdi->status = SR_ST_INACTIVE; sdi->vendor = vendor; sdi->model = model; sdi->serial_num = serial_num; - sdi->driver = di; sdi->priv = devc; + sdi->connection_id = g_strdup_printf("d:%u/%u", + libusb_get_bus_number(dev), libusb_get_device_address(dev)); for (char *const *chan = &(desc->channel_names[0]); *chan; chan++) sr_channel_new(sdi, chan - &(desc->channel_names[0]), SR_CHANNEL_LOGIC, TRUE, *chan); *devices = g_slist_append(*devices, sdi); - drvc->instances = g_slist_append(drvc->instances, sdi); return; err_free_strings: g_free(vendor); g_free(model); g_free(serial_num); - ftdi_free(devc->ftdic); -err_free_data_buf: g_free(devc->data_buf); g_free(devc); } -static GSList *scan_all(struct sr_dev_driver *di, GSList *options) +static GSList *scan_all(struct ftdi_context *ftdic, GSList *options) { GSList *devices; struct ftdi_device_list *devlist = 0; struct ftdi_device_list *curdev; - struct ftdi_context *ftdic; int ret; (void)options; devices = NULL; - /* Allocate memory for the FTDI context (ftdic) and initialize it. */ - ftdic = ftdi_new(); - if (!ftdic) { - sr_err("Failed to initialize libftdi."); - return NULL; - } - ret = ftdi_usb_find_all(ftdic, &devlist, 0, 0); if (ret < 0) { sr_err("Failed to list devices (%d): %s", ret, ftdi_get_error_string(ftdic)); - goto err_free_ftdic; + return NULL; } - sr_dbg("Number of FTDI devices found: %d", ret); - curdev = devlist; while (curdev) { - scan_device(di, curdev->dev, &devices); + scan_device(ftdic, curdev->dev, &devices); curdev = curdev->next; } ftdi_list_free(&devlist); - ftdi_free(ftdic); return devices; - -err_free_ftdic: - ftdi_free(ftdic); /* NOT free() or g_free()! */ - - return NULL; } static GSList *scan(struct sr_dev_driver *di, GSList *options) { + struct ftdi_context *ftdic; struct sr_config *src; struct sr_usb_dev_inst *usb; const char *conn; @@ -235,7 +203,6 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) int i; drvc = di->context; - drvc->instances = NULL; conn = NULL; for (l = options; l; l = l->next) { src = l->data; @@ -244,6 +211,13 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) break; } } + + ftdic = ftdi_new(); + if (!ftdic) { + sr_err("Failed to initialize libftdi."); + return NULL; + } + if (conn) { devices = NULL; libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); @@ -253,35 +227,27 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) usb = l->data; if (usb->bus == libusb_get_bus_number(devlist[i]) && usb->address == libusb_get_device_address(devlist[i])) { - scan_device(di, devlist[i], &devices); + scan_device(ftdic, devlist[i], &devices); } } } libusb_free_device_list(devlist, 1); - return devices; } else - return scan_all(di, options); -} + devices = scan_all(ftdic, options); -static GSList *dev_list(const struct sr_dev_driver *di) -{ - return ((struct drv_context *)(di->context))->instances; + ftdi_free(ftdic); + + return std_scan_complete(di, devices); } -static void clear_helper(void *priv) +static void clear_helper(struct dev_context *devc) { - struct dev_context *devc; - - devc = priv; - - ftdi_free(devc->ftdic); g_free(devc->data_buf); - g_free(devc); } static int dev_clear(const struct sr_dev_driver *di) { - return std_dev_clear(di, clear_helper); + return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); } static int dev_open(struct sr_dev_inst *sdi) @@ -291,32 +257,32 @@ static int dev_open(struct sr_dev_inst *sdi) devc = sdi->priv; - ret = ftdi_usb_open_dev(devc->ftdic, devc->usbdev); + devc->ftdic = ftdi_new(); + if (!devc->ftdic) + return SR_ERR; + + ret = ftdi_usb_open_string(devc->ftdic, sdi->connection_id); if (ret < 0) { /* Log errors, except for -3 ("device not found"). */ if (ret != -3) sr_err("Failed to open device (%d): %s", ret, ftdi_get_error_string(devc->ftdic)); - return SR_ERR; + goto err_ftdi_free; } - /* Purge RX/TX buffers in the FTDI chip. */ ret = ftdi_usb_purge_buffers(devc->ftdic); if (ret < 0) { sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.", ret, ftdi_get_error_string(devc->ftdic)); goto err_dev_open_close_ftdic; } - sr_dbg("FTDI chip buffers purged successfully."); - /* Reset the FTDI bitmode. */ ret = ftdi_set_bitmode(devc->ftdic, 0x00, BITMODE_RESET); if (ret < 0) { sr_err("Failed to reset the FTDI chip bitmode (%d): %s.", ret, ftdi_get_error_string(devc->ftdic)); goto err_dev_open_close_ftdic; } - sr_dbg("FTDI chip bitmode reset successfully."); ret = ftdi_set_bitmode(devc->ftdic, 0x00, BITMODE_BITBANG); if (ret < 0) { @@ -324,14 +290,15 @@ static int dev_open(struct sr_dev_inst *sdi) ret, ftdi_get_error_string(devc->ftdic)); goto err_dev_open_close_ftdic; } - sr_dbg("FTDI chip bitbang mode entered successfully."); - - sdi->status = SR_ST_ACTIVE; return SR_OK; err_dev_open_close_ftdic: ftdi_usb_close(devc->ftdic); + +err_ftdi_free: + ftdi_free(devc->ftdic); + return SR_ERR; } @@ -341,18 +308,12 @@ static int dev_close(struct sr_dev_inst *sdi) devc = sdi->priv; - ftdi_usb_close(devc->ftdic); - - sdi->status = SR_ST_INACTIVE; - - return SR_OK; -} - -static int cleanup(const struct sr_dev_driver *di) -{ - dev_clear(di); + if (!devc->ftdic) + return SR_ERR_BUG; - /* TODO: Free other driver resources, if any. */ + ftdi_usb_close(devc->ftdic); + ftdi_free(devc->ftdic); + devc->ftdic = NULL; return SR_OK; } @@ -360,7 +321,6 @@ static int cleanup(const struct sr_dev_driver *di) static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { - int ret; struct dev_context *devc; struct sr_usb_dev_inst *usb; char str[128]; @@ -369,7 +329,6 @@ static int config_get(uint32_t key, GVariant **data, devc = sdi->priv; - ret = SR_OK; switch (key) { case SR_CONF_SAMPLERATE: *data = g_variant_new_uint64(devc->cur_samplerate); @@ -385,30 +344,24 @@ static int config_get(uint32_t key, GVariant **data, return SR_ERR_NA; } - return ret; + return SR_OK; } static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { - int ret; struct dev_context *devc; uint64_t value; (void)cg; - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR_DEV_CLOSED; - devc = sdi->priv; - ret = SR_OK; switch (key) { case SR_CONF_LIMIT_MSEC: value = g_variant_get_uint64(data); /* TODO: Implement. */ - ret = SR_ERR_NA; - break; + return SR_ERR_NA; case SR_CONF_LIMIT_SAMPLES: if (g_variant_get_uint64(data) == 0) return SR_ERR_ARG; @@ -421,44 +374,27 @@ static int config_set(uint32_t key, GVariant *data, devc->cur_samplerate = value; return ftdi_la_set_samplerate(devc); default: - ret = SR_ERR_NA; + return SR_ERR_NA; } - return ret; + return SR_OK; } 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)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(samplerates, ARRAY_SIZE(samplerates)); break; default: return SR_ERR_NA; } - return ret; + return SR_OK; } static int dev_acquisition_start(const struct sr_dev_inst *sdi) @@ -467,9 +403,6 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi) devc = sdi->priv; - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR_DEV_CLOSED; - if (!devc->ftdic) return SR_ERR_BUG; @@ -479,7 +412,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi) devc->samples_sent = 0; devc->bytes_received = 0; - std_session_send_df_header(sdi, LOG_PREFIX); + std_session_send_df_header(sdi); /* Hook up a dummy handler to receive data from the device. */ sr_session_source_add(sdi->session, -1, G_IO_IN, 0, @@ -490,25 +423,21 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi) static int dev_acquisition_stop(struct sr_dev_inst *sdi) { - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR_DEV_CLOSED; - - sr_dbg("Stopping acquisition."); sr_session_source_remove(sdi->session, -1); - std_session_send_df_end(sdi, LOG_PREFIX); + std_session_send_df_end(sdi); return SR_OK; } -SR_PRIV struct sr_dev_driver ftdi_la_driver_info = { +static struct sr_dev_driver ftdi_la_driver_info = { .name = "ftdi-la", .longname = "FTDI LA", .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, @@ -519,3 +448,4 @@ SR_PRIV struct sr_dev_driver ftdi_la_driver_info = { .dev_acquisition_stop = dev_acquisition_stop, .context = NULL, }; +SR_REGISTER_DEV_DRIVER(ftdi_la_driver_info);