]> sigrok.org Git - libsigrok.git/blobdiff - src/hardware/testo/api.c
ols: add feature to support >256K memory
[libsigrok.git] / src / hardware / testo / api.c
index c0604da68e9878566a0ec8de3c24b9e370728e63..43a5f2513f67ca4822356fa00e74e5b52fd5e150 100644 (file)
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include <string.h>
 #include "protocol.h"
 
 #define SERIALCOMM "115200/8n1"
 
-SR_PRIV struct sr_dev_driver testo_driver_info;
-static struct sr_dev_driver *di = &testo_driver_info;
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
-
 static const uint32_t scanopts[] = {
        SR_CONF_CONN,
 };
 
-static const uint32_t devopts[] = {
+static const uint32_t drvopts[] = {
        SR_CONF_MULTIMETER,
-       SR_CONF_LIMIT_MSEC,
-       SR_CONF_LIMIT_SAMPLES,
+};
+
+static const uint32_t devopts[] = {
        SR_CONF_CONTINUOUS,
+       SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_GET,
+       SR_CONF_LIMIT_MSEC | SR_CONF_SET | SR_CONF_GET,
 };
 
-unsigned char TESTO_x35_REQUEST[] = { 0x12, 0, 0, 0, 1, 1, 0x55, 0xd1, 0xb7 };
-struct testo_model models[] = {
+static const uint8_t TESTO_x35_REQUEST[] = { 0x12, 0, 0, 0, 1, 1, 0x55, 0xd1, 0xb7 };
+
+static const struct testo_model models[] = {
        { "435", 9, TESTO_x35_REQUEST },
 };
 
-static int init(struct sr_context *sr_ctx)
-{
-       return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static GSList *scan(GSList *options)
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
 {
        struct drv_context *drvc;
        struct dev_context *devc;
@@ -58,13 +54,12 @@ static GSList *scan(GSList *options)
        libusb_device **devlist;
        struct libusb_device_handle *hdl;
        GSList *conn_devices, *devices, *l;
-       int devcnt, ret, i;
+       int ret, i;
        const char *str;
-       char manufacturer[64], product[64];
+       char manufacturer[64], product[64], connection_id[64];
 
        devices = NULL;
-       drvc = di->priv;
-       drvc->instances = NULL;
+       drvc = di->context;
 
        conn_devices = NULL;
        for (l = options; l; l = l->next) {
@@ -91,11 +86,7 @@ static GSList *scan(GSList *options)
                                continue;
                }
 
-               if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) {
-                       sr_warn("Failed to get device descriptor: %s.",
-                               libusb_error_name(ret));
-                       continue;
-               }
+               libusb_get_device_descriptor(devlist[i], &des);
 
                if ((ret = libusb_open(devlist[i], &hdl)) < 0)
                        continue;
@@ -118,72 +109,47 @@ static GSList *scan(GSList *options)
                if (strncmp(manufacturer, "testo", 5))
                        continue;
 
-               /* Hardcode the 435 for now.*/
+               if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0)
+                       continue;
+
+               /* Hardcode the 435 for now. */
                if (strcmp(product, "testo 435/635/735"))
                        continue;
 
-               devcnt = g_slist_length(drvc->instances);
-               sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE, "Testo",
-                               "435/635/735", NULL);
-               sdi->driver = di;
+               sdi = g_malloc0(sizeof(struct sr_dev_inst));
+               sdi->status = SR_ST_INACTIVE;
+               sdi->vendor = g_strdup("Testo");
+               sdi->model = g_strdup("435/635/735");
                sdi->inst_type = SR_INST_USB;
                sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
                                libusb_get_device_address(devlist[i]), NULL);
+               sdi->connection_id = g_strdup(connection_id);
                devc = g_malloc(sizeof(struct dev_context));
                devc->model = &models[0];
-               devc->limit_msec = 0;
-               devc->limit_samples = 0;
+               sr_sw_limits_init(&devc->sw_limits);
                sdi->priv = devc;
                if (testo_probe_channels(sdi) != SR_OK)
                        continue;
-               drvc->instances = g_slist_append(drvc->instances, sdi);
                devices = g_slist_append(devices, sdi);
        }
        libusb_free_device_list(devlist, 1);
        g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
 
-       return devices;
-}
-
-static GSList *dev_list(void)
-{
-       return ((struct drv_context *)(di->priv))->instances;
-}
-
-static int dev_clear(void)
-{
-       return std_dev_clear(di, NULL);
+       return std_scan_complete(di, devices);
 }
 
 static int dev_open(struct sr_dev_inst *sdi)
 {
-       struct drv_context *drvc = di->priv;
+       struct sr_dev_driver *di = sdi->driver;
+       struct drv_context *drvc = di->context;
        struct sr_usb_dev_inst *usb;
-       libusb_device **devlist;
-       int ret, i;
-
-       if (!di->priv) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
+       int ret;
 
        usb = sdi->conn;
-       libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
-       for (i = 0; devlist[i]; i++) {
-               if (libusb_get_bus_number(devlist[i]) != usb->bus
-                               || libusb_get_device_address(devlist[i]) != usb->address)
-                       continue;
-               if ((ret = libusb_open(devlist[i], &usb->devhdl))) {
-                       sr_err("Failed to open device: %s.", libusb_error_name(ret));
-                       return SR_ERR;
-               }
-               break;
-       }
-       libusb_free_device_list(devlist, 1);
-       if (!devlist[i]) {
-               sr_err("Device not found.");
-               return SR_ERR;
-       }
+
+       ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb);
+       if (ret != SR_OK)
+               return ret;
 
        if (libusb_has_capability(LIBUSB_CAP_SUPPORTS_DETACH_KERNEL_DRIVER)) {
                if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) {
@@ -199,7 +165,6 @@ 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 SR_OK;
 }
@@ -208,44 +173,23 @@ static int dev_close(struct sr_dev_inst *sdi)
 {
        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;
 
        libusb_release_interface(usb->devhdl, 0);
        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))
-               return SR_OK;
-
-       ret = dev_clear();
-       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 = sdi->priv;
        struct sr_usb_dev_inst *usb;
-       char str[128];
 
        (void)cg;
 
@@ -254,9 +198,11 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
                if (!sdi || !sdi->conn)
                        return SR_ERR_ARG;
                usb = sdi->conn;
-               snprintf(str, 128, "%d.%d", usb->bus, usb->address);
-               *data = g_variant_new_string(str);
+               *data = g_variant_new_printf("%d.%d", usb->bus, usb->address);
                break;
+       case SR_CONF_LIMIT_MSEC:
+       case SR_CONF_LIMIT_SAMPLES:
+               return sr_sw_limits_config_get(&devc->sw_limits, key, data);
        default:
                return SR_ERR_NA;
        }
@@ -264,65 +210,20 @@ 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;
-       gint64 now;
-       int ret;
+       struct dev_context *devc = sdi->priv;
 
        (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_MSEC:
-               devc->limit_msec = g_variant_get_uint64(data);
-               now = g_get_monotonic_time() / 1000;
-               devc->end_time = now + devc->limit_msec;
-               sr_dbg("Setting time limit to %" PRIu64 "ms.",
-                      devc->limit_msec);
-               break;
-       case SR_CONF_LIMIT_SAMPLES:
-               devc->limit_samples = g_variant_get_uint64(data);
-               sr_dbg("Setting sample limit to %" PRIu64 ".",
-                      devc->limit_samples);
-               break;
-       default:
-               ret = SR_ERR_NA;
-       }
-
-       return ret;
+       return sr_sw_limits_config_set(&devc->sw_limits, key, data);
 }
 
-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)
 {
-       (void)sdi;
-       (void)cg;
-
-       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;
-       default:
-               return SR_ERR_NA;
-       }
-
-       return SR_OK;
+       return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 }
 
 static void receive_data(struct sr_dev_inst *sdi, unsigned char *data, int len)
@@ -356,20 +257,20 @@ static void receive_data(struct sr_dev_inst *sdi, unsigned char *data, int len)
        crc = crc16_mcrf4xx(0xffff, devc->reply, devc->reply_size - 2);
        if (crc == RL16(&devc->reply[devc->reply_size - 2])) {
                testo_receive_packet(sdi);
-               devc->num_samples++;
+               sr_sw_limits_update_samples_read(&devc->sw_limits, 1);
        } else {
                sr_dbg("Packet has invalid CRC.");
        }
 
        devc->reply_size = 0;
-       if (devc->limit_samples && devc->num_samples >= devc->limit_samples)
-               dev_acquisition_stop(sdi, devc->cb_data);
+       if (sr_sw_limits_check(&devc->sw_limits))
+               sr_dev_acquisition_stop(sdi);
        else
                testo_request_packet(sdi);
 
 }
 
-SR_PRIV void receive_transfer(struct libusb_transfer *transfer)
+SR_PRIV void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer)
 {
        struct dev_context *devc;
        struct sr_dev_inst *sdi;
@@ -383,7 +284,7 @@ SR_PRIV void receive_transfer(struct libusb_transfer *transfer)
 
        if (transfer->status == LIBUSB_TRANSFER_NO_DEVICE) {
                /* USB device was unplugged. */
-               dev_acquisition_stop(sdi, devc->cb_data);
+               sr_dev_acquisition_stop(sdi);
        } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED) {
                /* First two bytes in any transfer are FTDI status bytes. */
                if (transfer->actual_length > 2)
@@ -398,7 +299,7 @@ SR_PRIV void receive_transfer(struct libusb_transfer *transfer)
                               libusb_error_name(ret));
                        g_free(transfer->buffer);
                        libusb_free_transfer(transfer);
-                       dev_acquisition_stop(sdi, devc->cb_data);
+                       sr_dev_acquisition_stop(sdi);
                }
        } else {
                /* This was the last transfer we're going to receive, so
@@ -410,32 +311,27 @@ SR_PRIV void receive_transfer(struct libusb_transfer *transfer)
 
 static int handle_events(int fd, int revents, void *cb_data)
 {
+       struct sr_dev_driver *di;
        struct dev_context *devc;
-       struct drv_context *drvc = di->priv;
-       struct sr_datafeed_packet packet;
+       struct drv_context *drvc;
        struct sr_dev_inst *sdi;
        struct timeval tv;
-       gint64 now;
 
        (void)fd;
        (void)revents;
 
        sdi = cb_data;
        devc = sdi->priv;
+       di = sdi->driver;
+       drvc = di->context;
 
-       if (devc->limit_msec) {
-               now = g_get_monotonic_time() / 1000;
-               if (now > devc->end_time)
-                       dev_acquisition_stop(sdi, devc->cb_data);
-       }
+       if (sr_sw_limits_check(&devc->sw_limits))
+               sr_dev_acquisition_stop(sdi);
 
        if (sdi->status == SR_ST_STOPPING) {
                usb_source_remove(sdi->session, drvc->sr_ctx);
-
                dev_close(sdi);
-
-               packet.type = SR_DF_END;
-               sr_session_send(sdi, &packet);
+               std_session_send_df_end(sdi);
        }
 
        memset(&tv, 0, sizeof(struct timeval));
@@ -445,8 +341,9 @@ static int handle_events(int fd, int revents, void *cb_data)
        return TRUE;
 }
 
-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_usb_dev_inst *usb;
@@ -454,24 +351,12 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
        int ret;
        unsigned char *buf;
 
-       drvc = di->priv;
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
-       if (!di->priv) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
-
+       drvc = di->context;
        devc = sdi->priv;
        usb = sdi->conn;
-       devc->cb_data = cb_data;
-       devc->end_time = 0;
-       devc->num_samples = 0;
        devc->reply_size = 0;
 
-       /* Send header packet to the session bus. */
-       std_session_send_df_header(cb_data, LOG_PREFIX);
+       std_session_send_df_header(sdi);
 
        usb_source_add(sdi->session, drvc->sr_ctx, 100,
                        handle_events, (void *)sdi);
@@ -483,7 +368,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
        if (testo_request_packet(sdi) != SR_OK)
                return SR_ERR;
 
-       buf = g_try_malloc(MAX_REPLY_SIZE);
+       buf = g_malloc(MAX_REPLY_SIZE);
        transfer = libusb_alloc_transfer(0);
        libusb_fill_bulk_transfer(transfer, usb->devhdl, EP_IN, buf,
                        MAX_REPLY_SIZE, receive_transfer, (void *)sdi, 100);
@@ -495,35 +380,27 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
        }
        devc->reply_size = 0;
 
+       sr_sw_limits_acquisition_start(&devc->sw_limits);
+
        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)
 {
-       (void)cb_data;
-
-       if (!di->priv) {
-               sr_err("Driver was not initialized.");
-               return SR_ERR;
-       }
-
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
        sdi->status = SR_ST_STOPPING;
 
        return SR_OK;
 }
 
-SR_PRIV struct sr_dev_driver testo_driver_info = {
+static struct sr_dev_driver testo_driver_info = {
        .name = "testo",
        .longname = "Testo",
        .api_version = 1,
-       .init = init,
-       .cleanup = cleanup,
+       .init = std_init,
+       .cleanup = std_cleanup,
        .scan = scan,
-       .dev_list = dev_list,
-       .dev_clear = dev_clear,
+       .dev_list = std_dev_list,
+       .dev_clear = std_dev_clear,
        .config_get = config_get,
        .config_set = config_set,
        .config_list = config_list,
@@ -531,5 +408,6 @@ SR_PRIV struct sr_dev_driver testo_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(testo_driver_info);