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uni-t-dmm: Use new USB helper functions.

This commit is contained in:
Uwe Hermann 2012-11-02 23:44:09 +01:00
parent 0c632d36be
commit 41d9427f27
1 changed files with 35 additions and 104 deletions
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139
hardware/uni-t-dmm/api.c
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@ -46,105 +46,6 @@ static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info;
/* After hw_init() this will point to a device-specific entry (see above). */
static struct sr_dev_driver *di = NULL;
static int open_usb(struct sr_dev_inst *sdi)
{
libusb_device **devlist;
struct libusb_device_descriptor des;
struct dev_context *devc;
int ret, tmp, cnt, i;
/* TODO: Use common code later, refactor. */
devc = sdi->priv;
if ((cnt = libusb_get_device_list(NULL, &devlist)) < 0) {
sr_err("Error getting USB device list: %d.", cnt);
return SR_ERR;
}
ret = SR_ERR;
for (i = 0; i < cnt; i++) {
if ((tmp = libusb_get_device_descriptor(devlist[i], &des))) {
sr_err("Failed to get device descriptor: %d.", tmp);
continue;
}
if (libusb_get_bus_number(devlist[i]) != devc->usb->bus
|| libusb_get_device_address(devlist[i]) != devc->usb->address)
continue;
if ((tmp = libusb_open(devlist[i], &devc->usb->devhdl))) {
sr_err("Failed to open device: %d.", tmp);
break;
}
sr_info("Opened USB device on %d.%d.",
devc->usb->bus, devc->usb->address);
ret = SR_OK;
break;
}
libusb_free_device_list(devlist, 1);
return ret;
}
static GSList *connect_usb(const char *conn)
{
struct sr_dev_inst *sdi;
struct drv_context *drvc;
struct dev_context *devc;
struct sr_probe *probe;
libusb_device **devlist;
struct libusb_device_descriptor des;
GSList *devices;
int vid, pid, devcnt, err, i;
(void)conn;
/* TODO: Use common code later, refactor. */
drvc = di->priv;
/* Hardcoded for now. */
vid = UT_D04_CABLE_USB_VID;
pid = UT_D04_CABLE_USB_DID;
devices = NULL;
libusb_get_device_list(NULL, &devlist);
for (i = 0; devlist[i]; i++) {
if ((err = libusb_get_device_descriptor(devlist[i], &des))) {
sr_err("Failed to get device descriptor: %d", err);
continue;
}
if (des.idVendor != vid || des.idProduct != pid)
continue;
if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
sr_err("Device context malloc failed.");
return NULL;
}
devcnt = g_slist_length(drvc->instances);
if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
di->longname, NULL, NULL))) {
sr_err("sr_dev_inst_new returned NULL.");
return NULL;
}
sdi->priv = devc;
if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
return NULL;
sdi->probes = g_slist_append(sdi->probes, probe);
devc->usb = sr_usb_dev_inst_new(
libusb_get_bus_number(devlist[i]),
libusb_get_device_address(devlist[i]), NULL);
devices = g_slist_append(devices, sdi);
}
libusb_free_device_list(devlist, 1);
return devices;
}
static int clear_instances(void)
{
/* TODO: Use common code later. */
@ -191,21 +92,47 @@ static int hw_init_vc820(void)
static GSList *hw_scan(GSList *options)
{
GSList *l, *devices;
GSList *devices, *l;
struct sr_dev_inst *sdi;
struct dev_context *devc;
struct drv_context *drvc;
struct sr_probe *probe;
struct libusb_device *ldev;
int i, devcnt;
(void)options;
drvc = di->priv;
if (!(devices = connect_usb(NULL)))
devices = NULL;
if (!(l = sr_usb_connect(NULL, "1a86.e008")))
return NULL;
for (l = devices; l; l = l->next) {
sdi = l->data;
for (i = 0; i < (int)g_slist_length(l); i++) {
ldev = (struct libusb_device *)l->data;
if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
sr_err("Device context malloc failed.");
return NULL;
}
devcnt = g_slist_length(drvc->instances);
if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
di->longname, NULL, NULL))) {
sr_err("sr_dev_inst_new returned NULL.");
return NULL;
}
sdi->priv = devc;
sdi->driver = di;
if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
return NULL;
sdi->probes = g_slist_append(sdi->probes, probe);
devc->usb = sr_usb_dev_inst_new(
libusb_get_bus_number(ldev),
libusb_get_device_address(ldev), NULL);
drvc->instances = g_slist_append(drvc->instances, l->data);
devices = g_slist_append(devices, sdi);
}
return devices;
@ -222,7 +149,11 @@ static GSList *hw_dev_list(void)
static int hw_dev_open(struct sr_dev_inst *sdi)
{
return open_usb(sdi);
struct dev_context *devc;
devc = sdi->priv;
return sr_usb_open(NULL, devc->usb);
}
static int hw_dev_close(struct sr_dev_inst *sdi)