X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=src%2Fhardware%2Fkecheng-kc-330b%2Fapi.c;h=60b1164d4f8fa5ffd739f1dd48ca841885d86a44;hp=293d3c8549b7ca4adceccb5497275d872d6cfec9;hb=HEAD;hpb=584560f142e1b17b9f4ef9069bd3724f2f77e750

diff --git a/src/hardware/kecheng-kc-330b/api.c b/src/hardware/kecheng-kc-330b/api.c
index 293d3c85..60b1164d 100644
--- a/src/hardware/kecheng-kc-330b/api.c
+++ b/src/hardware/kecheng-kc-330b/api.c
@@ -17,21 +17,25 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include <string.h>
 #include "protocol.h"
 
 #define USB_CONN "1041.8101"
-#define VENDOR "Kecheng"
 #define USB_INTERFACE 0
 
-static const uint32_t hwcaps[] = {
+static const uint32_t drvopts[] = {
 	SR_CONF_SOUNDLEVELMETER,
-	SR_CONF_LIMIT_SAMPLES,
+};
+
+static const uint32_t devopts[] = {
 	SR_CONF_CONTINUOUS,
-	SR_CONF_DATALOG,
-	SR_CONF_SPL_WEIGHT_FREQ,
-	SR_CONF_SPL_WEIGHT_TIME,
-	SR_CONF_DATA_SOURCE,
+	SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+	SR_CONF_SAMPLE_INTERVAL | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+	SR_CONF_DATALOG | SR_CONF_GET,
+	SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+	SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+	SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
 };
 
 SR_PRIV const uint64_t kecheng_kc_330b_sample_intervals[][2] = {
@@ -45,36 +49,25 @@ SR_PRIV const uint64_t kecheng_kc_330b_sample_intervals[][2] = {
 };
 
 static const char *weight_freq[] = {
-	"A",
-	"C",
+	"A", "C",
 };
 
 static const char *weight_time[] = {
-	"F",
-	"S",
+	"F", "S",
 };
 
 static const char *data_sources[] = {
-	"Live",
-	"Memory",
+	"Live", "Memory",
 };
 
-SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info;
-static struct sr_dev_driver *di = &kecheng_kc_330b_driver_info;
-
-
-static int init(struct sr_context *sr_ctx)
-{
-	return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static int scan_kecheng(struct sr_usb_dev_inst *usb, char **model)
+static int scan_kecheng(struct sr_dev_driver *di,
+		struct sr_usb_dev_inst *usb, char **model)
 {
 	struct drv_context *drvc;
 	int len, ret;
 	unsigned char cmd, buf[32];
 
-	drvc = di->priv;
+	drvc = di->context;
 	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
 		return SR_ERR;
 
@@ -107,42 +100,33 @@ static int scan_kecheng(struct sr_usb_dev_inst *usb, char **model)
 	return SR_OK;
 }
 
-static GSList *scan(GSList *options)
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
 {
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	GSList *usb_devices, *devices, *l;
 	char *model;
 
 	(void)options;
 
-	drvc = di->priv;
-	drvc->instances = NULL;
+	drvc = di->context;
 
 	devices = NULL;
 	if ((usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_CONN))) {
 		/* We have a list of sr_usb_dev_inst matching the connection
 		 * string. Wrap them in sr_dev_inst and we're done. */
 		for (l = usb_devices; l; l = l->next) {
-			if (scan_kecheng(l->data, &model) != SR_OK)
+			if (scan_kecheng(di, l->data, &model) != SR_OK)
 				continue;
-			if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR,
-					model, NULL)))
-				return NULL;
-			g_free(model);
-			sdi->driver = di;
+			sdi = g_malloc0(sizeof(struct sr_dev_inst));
+			sdi->status = SR_ST_INACTIVE;
+			sdi->vendor = g_strdup("Kecheng");
+			sdi->model = model; /* Already g_strndup()'d. */
 			sdi->inst_type = SR_INST_USB;
 			sdi->conn = l->data;
-			if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL")))
-				return NULL;
-			sdi->channels = g_slist_append(sdi->channels, ch);
-
-			if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
-				sr_dbg("Device context malloc failed.");
-				return NULL;
-			}
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
+			devc = g_malloc0(sizeof(struct dev_context));
 			sdi->priv = devc;
 			devc->limit_samples = 0;
 			/* The protocol provides no way to read the current
@@ -156,32 +140,22 @@ static GSList *scan(GSList *options)
 
 			/* TODO: Set date/time? */
 
-			drvc->instances = g_slist_append(drvc->instances, sdi);
 			devices = g_slist_append(devices, sdi);
 		}
 		g_slist_free(usb_devices);
 	} else
 		g_slist_free_full(usb_devices, g_free);
 
-	return devices;
-}
-
-static GSList *dev_list(void)
-{
-	return ((struct drv_context *)(di->priv))->instances;
+	return std_scan_complete(di, devices);
 }
 
 static int dev_open(struct sr_dev_inst *sdi)
 {
-	struct drv_context *drvc;
+	struct sr_dev_driver *di = sdi->driver;
+	struct drv_context *drvc = di->context;
 	struct sr_usb_dev_inst *usb;
 	int ret;
 
-	if (!(drvc = di->priv)) {
-		sr_err("Driver was not initialized.");
-		return SR_ERR;
-	}
-
 	usb = sdi->conn;
 
 	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
@@ -196,9 +170,8 @@ static int dev_open(struct sr_dev_inst *sdi)
 		sr_err("Failed to claim interface: %s.", libusb_error_name(ret));
 		return SR_ERR;
 	}
-	sdi->status = SR_ST_ACTIVE;
 
-	return ret;
+	return SR_OK;
 }
 
 static int dev_close(struct sr_dev_inst *sdi)
@@ -206,16 +179,10 @@ static int dev_close(struct sr_dev_inst *sdi)
 	struct dev_context *devc;
 	struct sr_usb_dev_inst *usb;
 
-	if (!di->priv) {
-		sr_err("Driver was not initialized.");
-		return SR_ERR;
-	}
-
 	usb = sdi->conn;
 
 	if (!usb->devhdl)
-		/*  Nothing to do. */
-		return SR_OK;
+		return SR_ERR_BUG;
 
 	/* This allows a frontend to configure the device without ever
 	 * doing an acquisition step. */
@@ -226,33 +193,14 @@ static int dev_close(struct sr_dev_inst *sdi)
 	libusb_release_interface(usb->devhdl, USB_INTERFACE);
 	libusb_close(usb->devhdl);
 	usb->devhdl = NULL;
-	sdi->status = SR_ST_INACTIVE;
 
 	return SR_OK;
 }
 
-static int cleanup(void)
-{
-	int ret;
-	struct drv_context *drvc;
-
-	if (!(drvc = di->priv))
-		/* Can get called on an unused driver, doesn't matter. */
-		return SR_OK;
-
-
-	ret = std_dev_clear(di, NULL);
-	g_free(drvc);
-	di->priv = NULL;
-
-	return ret;
-}
-
-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;
-	GVariant *rational[2];
 	const uint64_t *si;
 
 	(void)cg;
@@ -264,14 +212,11 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
 		break;
 	case SR_CONF_SAMPLE_INTERVAL:
 		si = kecheng_kc_330b_sample_intervals[devc->sample_interval];
-		rational[0] = g_variant_new_uint64(si[0]);
-		rational[1] = g_variant_new_uint64(si[1]);
-		*data = g_variant_new_tuple(rational, 2);
+		*data = std_gvar_tuple_u64(si[0], si[1]);
 		break;
 	case SR_CONF_DATALOG:
 		/* There really isn't a way to be sure the device is logging. */
 		return SR_ERR_NA;
-		break;
 	case SR_CONF_SPL_WEIGHT_FREQ:
 		if (devc->mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A)
 			*data = g_variant_new_string("A");
@@ -297,119 +242,69 @@ 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;
-	uint64_t p, q;
-	unsigned int i;
-	int tmp, ret;
-	const char *tmp_str;
+	int idx;
 
 	(void)cg;
 
-	if (sdi->status != SR_ST_ACTIVE)
-		return SR_ERR_DEV_CLOSED;
-
-	if (!di->priv) {
-		sr_err("Driver was not initialized.");
-		return SR_ERR;
-	}
-
 	devc = sdi->priv;
-	ret = SR_OK;
 	switch (key) {
 	case SR_CONF_LIMIT_SAMPLES:
 		devc->limit_samples = g_variant_get_uint64(data);
-		sr_dbg("Setting sample limit to %" PRIu64 ".",
-		       devc->limit_samples);
 		break;
 	case SR_CONF_SAMPLE_INTERVAL:
-		g_variant_get(data, "(tt)", &p, &q);
-		for (i = 0; i < ARRAY_SIZE(kecheng_kc_330b_sample_intervals); i++) {
-			if (kecheng_kc_330b_sample_intervals[i][0] != p || kecheng_kc_330b_sample_intervals[i][1] != q)
-				continue;
-			devc->sample_interval = i;
-			devc->config_dirty = TRUE;
-			break;
-		}
-		if (i == ARRAY_SIZE(kecheng_kc_330b_sample_intervals))
-			ret = SR_ERR_ARG;
+		if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(kecheng_kc_330b_sample_intervals))) < 0)
+			return SR_ERR_ARG;
+		devc->sample_interval = idx;
+		devc->config_dirty = TRUE;
 		break;
 	case SR_CONF_SPL_WEIGHT_FREQ:
-		tmp_str = g_variant_get_string(data, NULL);
-		if (!strcmp(tmp_str, "A"))
-			tmp = SR_MQFLAG_SPL_FREQ_WEIGHT_A;
-		else if (!strcmp(tmp_str, "C"))
-			tmp = SR_MQFLAG_SPL_FREQ_WEIGHT_C;
-		else
+		if ((idx = std_str_idx(data, ARRAY_AND_SIZE(weight_freq))) < 0)
 			return SR_ERR_ARG;
 		devc->mqflags &= ~(SR_MQFLAG_SPL_FREQ_WEIGHT_A | SR_MQFLAG_SPL_FREQ_WEIGHT_C);
-		devc->mqflags |= tmp;
+		devc->mqflags |= (weight_freq[idx][0] == 'A') ? SR_MQFLAG_SPL_FREQ_WEIGHT_A : SR_MQFLAG_SPL_FREQ_WEIGHT_C;
 		devc->config_dirty = TRUE;
 		break;
 	case SR_CONF_SPL_WEIGHT_TIME:
-		tmp_str = g_variant_get_string(data, NULL);
-		if (!strcmp(tmp_str, "F"))
-			tmp = SR_MQFLAG_SPL_TIME_WEIGHT_F;
-		else if (!strcmp(tmp_str, "S"))
-			tmp = SR_MQFLAG_SPL_TIME_WEIGHT_S;
-		else
+		if ((idx = std_str_idx(data, ARRAY_AND_SIZE(weight_time))) < 0)
 			return SR_ERR_ARG;
 		devc->mqflags &= ~(SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_TIME_WEIGHT_S);
-		devc->mqflags |= tmp;
+		devc->mqflags |= (weight_time[idx][0] == 'F') ? SR_MQFLAG_SPL_TIME_WEIGHT_F : SR_MQFLAG_SPL_TIME_WEIGHT_S;
 		devc->config_dirty = TRUE;
 		break;
 	case SR_CONF_DATA_SOURCE:
-		tmp_str = g_variant_get_string(data, NULL);
-		if (!strcmp(tmp_str, "Live"))
-			devc->data_source = DATA_SOURCE_LIVE;
-		else if (!strcmp(tmp_str, "Memory"))
-			devc->data_source = DATA_SOURCE_MEMORY;
-		else
-			return SR_ERR;
+		if ((idx = std_str_idx(data, ARRAY_AND_SIZE(data_sources))) < 0)
+			return SR_ERR_ARG;
+		devc->data_source = idx;
 		devc->config_dirty = TRUE;
 		break;
 	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)
+static int config_list(uint32_t key, GVariant **data,
+	const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 {
-	GVariant *tuple, *rational[2];
-	GVariantBuilder gvb;
-	unsigned int i;
-
-	(void)sdi;
-	(void)cg;
-
 	switch (key) {
 	case SR_CONF_DEVICE_OPTIONS:
-		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
-				hwcaps, ARRAY_SIZE(hwcaps), sizeof(uint32_t));
-		break;
+		return STD_CONFIG_LIST(key, data, sdi, cg, NO_OPTS, drvopts, devopts);
 	case SR_CONF_SAMPLE_INTERVAL:
-		g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
-		for (i = 0; i < ARRAY_SIZE(kecheng_kc_330b_sample_intervals); i++) {
-			rational[0] = g_variant_new_uint64(kecheng_kc_330b_sample_intervals[i][0]);
-			rational[1] = g_variant_new_uint64(kecheng_kc_330b_sample_intervals[i][1]);
-			tuple = g_variant_new_tuple(rational, 2);
-			g_variant_builder_add_value(&gvb, tuple);
-		}
-		*data = g_variant_builder_end(&gvb);
+		*data = std_gvar_tuple_array(ARRAY_AND_SIZE(kecheng_kc_330b_sample_intervals));
 		break;
 	case SR_CONF_SPL_WEIGHT_FREQ:
-		*data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
+		*data = g_variant_new_strv(ARRAY_AND_SIZE(weight_freq));
 		break;
 	case SR_CONF_SPL_WEIGHT_TIME:
-		*data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
+		*data = g_variant_new_strv(ARRAY_AND_SIZE(weight_time));
 		break;
 	case SR_CONF_DATA_SOURCE:
-		*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
+		*data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
 		break;
 	default:
 		return SR_ERR_NA;
@@ -418,32 +313,27 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *
 	return SR_OK;
 }
 
-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)
 {
+	struct sr_dev_driver *di = sdi->driver;
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_datafeed_packet packet;
 	struct sr_datafeed_meta meta;
 	struct sr_config *src;
 	struct sr_usb_dev_inst *usb;
-	GVariant *gvar, *rational[2];
+	GVariant *gvar;
 	const uint64_t *si;
-	int stored_mqflags, req_len, buf_len, len, ret;
+	int req_len, buf_len, len, ret;
 	unsigned char buf[9];
 
-	if (sdi->status != SR_ST_ACTIVE)
-		return SR_ERR_DEV_CLOSED;
-
-	drvc = di->priv;
+	drvc = di->context;
 	devc = sdi->priv;
 	usb = sdi->conn;
 
-	devc->cb_data = cb_data;
 	devc->num_samples = 0;
 
-	/* Send header packet to the session bus. */
-	std_session_send_df_header(cb_data, LOG_PREFIX);
+	std_session_send_df_header(sdi);
 
 	if (devc->data_source == DATA_SOURCE_LIVE) {
 		/* Force configuration. */
@@ -461,13 +351,12 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 	} else {
 		if (kecheng_kc_330b_log_info_get(sdi, buf) != SR_OK)
 			return SR_ERR;
-		stored_mqflags = buf[4] ? SR_MQFLAG_SPL_TIME_WEIGHT_S : SR_MQFLAG_SPL_TIME_WEIGHT_F;
-		stored_mqflags |= buf[5] ? SR_MQFLAG_SPL_FREQ_WEIGHT_C : SR_MQFLAG_SPL_FREQ_WEIGHT_A;
+		devc->mqflags = buf[4] ? SR_MQFLAG_SPL_TIME_WEIGHT_S : SR_MQFLAG_SPL_TIME_WEIGHT_F;
+		devc->mqflags |= buf[5] ? SR_MQFLAG_SPL_FREQ_WEIGHT_C : SR_MQFLAG_SPL_FREQ_WEIGHT_A;
 		devc->stored_samples = (buf[7] << 8) | buf[8];
 		if (devc->stored_samples == 0) {
 			/* Notify frontend of empty log by sending start/end packets. */
-			packet.type = SR_DF_END;
-			sr_session_send(cb_data, &packet);
+			std_session_send_df_end(sdi);
 			return SR_OK;
 		}
 
@@ -475,15 +364,15 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 			devc->stored_samples = devc->limit_samples;
 
 		si = kecheng_kc_330b_sample_intervals[buf[1]];
-		rational[0] = g_variant_new_uint64(si[0]);
-		rational[1] = g_variant_new_uint64(si[1]);
-		gvar = g_variant_new_tuple(rational, 2);
+		gvar = std_gvar_tuple_u64(si[0], si[1]);
+
 		src = sr_config_new(SR_CONF_SAMPLE_INTERVAL, gvar);
 		packet.type = SR_DF_META;
 		packet.payload = &meta;
 		meta.config = g_slist_append(NULL, src);
-		sr_session_send(devc->cb_data, &packet);
-		g_free(src);
+		sr_session_send(sdi, &packet);
+		g_slist_free(meta.config);
+		sr_config_free(src);
 	}
 
 	if (!(devc->xfer = libusb_alloc_transfer(0)))
@@ -529,15 +418,10 @@ static int dev_acquisition_start(const struct sr_dev_inst *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;
 
-	(void)cb_data;
-
-	if (sdi->status != SR_ST_ACTIVE)
-		return SR_ERR_DEV_CLOSED;
-
 	/* Signal USB transfer handler to clean up and stop. */
 	sdi->status = SR_ST_STOPPING;
 
@@ -555,15 +439,15 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 	return SR_OK;
 }
 
-SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info = {
+static struct sr_dev_driver kecheng_kc_330b_driver_info = {
 	.name = "kecheng-kc-330b",
 	.longname = "Kecheng KC-330B",
 	.api_version = 1,
-	.init = init,
-	.cleanup = cleanup,
+	.init = std_init,
+	.cleanup = std_cleanup,
 	.scan = scan,
-	.dev_list = dev_list,
-	.dev_clear = NULL,
+	.dev_list = std_dev_list,
+	.dev_clear = std_dev_clear,
 	.config_get = config_get,
 	.config_set = config_set,
 	.config_list = config_list,
@@ -571,5 +455,6 @@ SR_PRIV struct sr_dev_driver kecheng_kc_330b_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(kecheng_kc_330b_driver_info);