Backport recent changes from mainline.

[libsigrok.git] / src / hardware / brymen-bm86x / api.c

diff --git a/src/hardware/brymen-bm86x/api.c b/src/hardware/brymen-bm86x/api.c
index a9ac15b3b37ad9754a750459161468e003fb96c1..f0713010ea820ac60706f987ace12ec3545b81a4 100644 (file)
--- a/src/hardware/brymen-bm86x/api.c
+++ b/src/hardware/brymen-bm86x/api.c
@@ -26,8 +26,11 @@ static const uint32_t scanopts[] = {
        SR_CONF_CONN,
 };
 
-static const uint32_t devopts[] = {
+static const uint32_t drvopts[] = {
        SR_CONF_MULTIMETER,
+};
+
+static const uint32_t devopts[] = {
        SR_CONF_CONTINUOUS,
        SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
        SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
@@ -95,12 +98,9 @@ static int dev_open(struct sr_dev_inst *sdi)
        usb = sdi->conn;
        devc = sdi->priv;
 
-       if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
-               sdi->status = SR_ST_ACTIVE;
-       else
+       if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) < 0)
                return SR_ERR;
 
-       /* Detach kernel drivers which grabbed this device (if any). */
        if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) {
                ret = libusb_detach_kernel_driver(usb->devhdl, 0);
                if (ret < 0) {
@@ -109,20 +109,15 @@ static int dev_open(struct sr_dev_inst *sdi)
                        return SR_ERR;
                }
                devc->detached_kernel_driver = 1;
-               sr_dbg("Successfully detached kernel driver.");
-       } else {
-               sr_dbg("No need to detach a kernel driver.");
        }
 
-       /* Claim interface 0. */
        if ((ret = libusb_claim_interface(usb->devhdl, 0)) < 0) {
                sr_err("Failed to claim interface 0: %s.",
                       libusb_error_name(ret));
                return SR_ERR;
        }
-       sr_dbg("Successfully claimed interface 0.");
 
-       return ret;
+       return SR_OK;
 }
 
 static int dev_close(struct sr_dev_inst *sdi)
@@ -131,36 +126,30 @@ static int dev_close(struct sr_dev_inst *sdi)
        struct dev_context *devc;
        int ret;
 
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
        usb = sdi->conn;
        devc = sdi->priv;
 
+       if (!usb->devhdl)
+               return SR_OK;
+
        if ((ret = libusb_release_interface(usb->devhdl, 0)))
                sr_err("Failed to release interface 0: %s.\n", libusb_error_name(ret));
-       else
-               sr_dbg("Successfully released interface 0.\n");
 
        if (!ret && devc->detached_kernel_driver) {
-               if ((ret = libusb_attach_kernel_driver(usb->devhdl, 0))) {
+               if ((ret = libusb_attach_kernel_driver(usb->devhdl, 0)))
                        sr_err("Failed to attach kernel driver: %s.\n",
                               libusb_error_name(ret));
-               } else {
+               else
                        devc->detached_kernel_driver = 0;
-                       sr_dbg("Successfully attached kernel driver.\n");
-               }
        }
 
        libusb_close(usb->devhdl);
 
-       sdi->status = SR_ST_INACTIVE;
-
-       return ret;
+       return (ret == 0) ? SR_OK : SR_ERR;
 }
 
-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;
 
@@ -169,55 +158,33 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
        return sr_sw_limits_config_get(&devc->sw_limits, key, data);
 }
 
-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;
 
        (void)cg;
 
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
        devc = sdi->priv;
 
        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 int dev_acquisition_start(const struct sr_dev_inst *sdi)
 {
        struct dev_context *devc;
 
-       if (sdi->status != SR_ST_ACTIVE)
-               return SR_ERR_DEV_CLOSED;
-
        devc = sdi->priv;
 
        sr_sw_limits_acquisition_start(&devc->sw_limits);
 
-       std_session_send_df_header(sdi, LOG_PREFIX);
+       std_session_send_df_header(sdi);
 
        sr_session_source_add(sdi->session, -1, 0, 10,
                        brymen_bm86x_receive_data, (void *)sdi);
@@ -227,10 +194,7 @@ 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;
-
-       std_session_send_df_end(sdi, LOG_PREFIX);
+       std_session_send_df_end(sdi);
 
        sr_session_source_remove(sdi->session, -1);
 
@@ -245,7 +209,7 @@ static struct sr_dev_driver brymen_bm86x_driver_info = {
        .cleanup = std_cleanup,
        .scan = scan,
        .dev_list = std_dev_list,
-       .dev_clear = NULL,
+       .dev_clear = std_dev_clear,
        .config_get = config_get,
        .config_set = config_set,
        .config_list = config_list,