---
usb-linux.c | 374 +++++++++++++++++++++++++++++++++++------------------------
1 files changed, 224 insertions(+), 150 deletions(-)
diff --git a/usb-linux.c b/usb-linux.c
index d0d7cff..b3d6b28 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -105,9 +105,9 @@ enum {
/*
* Control transfer state.
- * Note that 'buffer' _must_ follow 'req' field because
+ * Note that 'buffer' _must_ follow 'req' field because
* we need contigious buffer when we submit control URB.
- */
+ */
struct ctrl_struct {
uint16_t len;
uint16_t offset;
@@ -170,10 +170,10 @@ static void set_halt(USBHostDevice *s, int ep)
s->endp_table[ep - 1].halted = 1;
}
-/*
+/*
* Async URB state.
* We always allocate one isoc descriptor even for bulk transfers
- * to simplify allocation and casts.
+ * to simplify allocation and casts.
*/
typedef struct AsyncURB
{
@@ -220,15 +220,16 @@ static void async_complete(void *opaque)
AsyncURB *aurb;
while (1) {
- USBPacket *p;
+ USBPacket *p;
- int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY,&aurb);
+ int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY,&aurb);
if (r< 0) {
- if (errno == EAGAIN)
+ if (errno == EAGAIN) {
return;
-
+ }
if (errno == ENODEV&& !s->closing) {
- printf("husb: device %d.%d disconnected\n", s->bus_num,
s->addr);
+ printf("husb: device %d.%d disconnected\n",
+ s->bus_num, s->addr);
usb_host_close(s);
usb_host_auto_check(NULL);
return;
@@ -240,21 +241,22 @@ static void async_complete(void *opaque)
p = aurb->packet;
- DPRINTF("husb: async completed. aurb %p status %d alen %d\n",
+ DPRINTF("husb: async completed. aurb %p status %d alen %d\n",
aurb, aurb->urb.status, aurb->urb.actual_length);
- if (p) {
+ if (p) {
switch (aurb->urb.status) {
case 0:
p->len = aurb->urb.actual_length;
- if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL)
+ if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) {
async_complete_ctrl(s, p);
+ }
break;
case -EPIPE:
set_halt(s, p->devep);
- p->len = USB_RET_STALL;
- break;
+ p->len = USB_RET_STALL;
+ break;
default:
p->len = USB_RET_NAK;
@@ -262,7 +264,7 @@ static void async_complete(void *opaque)
}
usb_packet_complete(p);
- }
+ }
async_free(aurb);
}
@@ -297,14 +299,15 @@ static int usb_host_claim_interfaces(USBHostDevice *dev,
int configuration)
i = 0;
dev_descr_len = dev->descr[0];
- if (dev_descr_len> dev->descr_len)
+ if (dev_descr_len> dev->descr_len) {
goto fail;
+ }
nb_configurations = dev->descr[17];
i += dev_descr_len;
while (i< dev->descr_len) {
- DPRINTF("husb: i is %d, descr_len is %d, dl %d, dt %d\n", i,
dev->descr_len,
- dev->descr[i], dev->descr[i+1]);
+ DPRINTF("husb: i is %d, descr_len is %d, dl %d, dt %d\n",
+ i, dev->descr_len, dev->descr[i], dev->descr[i+1]);
if (dev->descr[i+1] != USB_DT_CONFIG) {
i += dev->descr[i];
@@ -312,7 +315,7 @@ static int usb_host_claim_interfaces(USBHostDevice *dev,
int configuration)
}
config_descr_len = dev->descr[i];
- printf("husb: config #%d need %d\n", dev->descr[i + 5], configuration);
+ printf("husb: config #%d need %d\n", dev->descr[i + 5], configuration);
if (configuration< 0 || configuration == dev->descr[i + 5]) {
configuration = dev->descr[i + 5];
@@ -323,7 +326,8 @@ static int usb_host_claim_interfaces(USBHostDevice *dev,
int configuration)
}
if (i>= dev->descr_len) {
- fprintf(stderr, "husb: update iface failed. no matching
configuration\n");
+ fprintf(stderr,
+ "husb: update iface failed. no matching configuration\n");
goto fail;
}
nb_interfaces = dev->descr[i + 4];
@@ -416,15 +420,16 @@ static int usb_host_handle_data(USBHostDevice *s,
USBPacket *p)
urb =&aurb->urb;
- if (p->pid == USB_TOKEN_IN)
- urb->endpoint = p->devep | 0x80;
- else
- urb->endpoint = p->devep;
+ if (p->pid == USB_TOKEN_IN) {
+ urb->endpoint = p->devep | 0x80;
+ } else {
+ urb->endpoint = p->devep;
+ }
if (is_halted(s, p->devep)) {
- ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT,&urb->endpoint);
+ ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT,&urb->endpoint);
if (ret< 0) {
- DPRINTF("husb: failed to clear halt. ep 0x%x errno %d\n",
+ DPRINTF("husb: failed to clear halt. ep 0x%x errno %d\n",
urb->endpoint, errno);
return USB_RET_NAK;
}
@@ -449,7 +454,8 @@ static int usb_host_handle_data(USBHostDevice *s, USBPacket
*p)
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb);
- DPRINTF("husb: data submit. ep 0x%x len %u aurb %p\n", urb->endpoint,
p->len, aurb);
+ DPRINTF("husb: data submit. ep 0x%x len %u aurb %p\n",
+ urb->endpoint, p->len, aurb);
if (ret< 0) {
DPRINTF("husb: submit failed. errno %d\n", errno);
@@ -470,10 +476,11 @@ static int usb_host_handle_data(USBHostDevice *s,
USBPacket *p)
static int ctrl_error(void)
{
- if (errno == ETIMEDOUT)
+ if (errno == ETIMEDOUT) {
return USB_RET_NAK;
- else
+ } else {
return USB_RET_STALL;
+ }
}
static int usb_host_set_address(USBHostDevice *s, int addr)
@@ -488,12 +495,12 @@ static int usb_host_set_config(USBHostDevice *s, int
config)
usb_host_release_interfaces(s);
int ret = ioctl(s->fd, USBDEVFS_SETCONFIGURATION,&config);
-
+
DPRINTF("husb: ctrl set config %d ret %d errno %d\n", config, ret, errno);
-
- if (ret< 0)
+
+ if (ret< 0) {
return ctrl_error();
-
+ }
usb_host_claim_interfaces(s, config);
return 0;
}
@@ -506,13 +513,13 @@ static int usb_host_set_interface(USBHostDevice *s, int
iface, int alt)
si.interface = iface;
si.altsetting = alt;
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE,&si);
-
- DPRINTF("husb: ctrl set iface %d altset %d ret %d errno %d\n",
- iface, alt, ret, errno);
-
- if (ret< 0)
- return ctrl_error();
+ DPRINTF("husb: ctrl set iface %d altset %d ret %d errno %d\n",
+ iface, alt, ret, errno);
+
+ if (ret< 0) {
+ return ctrl_error();
+ }
usb_linux_update_endp_table(s);
return 0;
}
@@ -524,7 +531,7 @@ static int usb_host_handle_control(USBHostDevice *s,
USBPacket *p)
int ret, value, index;
int buffer_len;
- /*
+ /*
* Process certain standard device requests.
* These are infrequent and are processed synchronously.
*/
@@ -532,8 +539,8 @@ static int usb_host_handle_control(USBHostDevice *s,
USBPacket *p)
index = le16_to_cpu(s->ctrl.req.wIndex);
DPRINTF("husb: ctrl type 0x%x req 0x%x val 0x%x index %u len %u\n",
- s->ctrl.req.bRequestType, s->ctrl.req.bRequest, value, index,
- s->ctrl.len);
+ s->ctrl.req.bRequestType, s->ctrl.req.bRequest, value, index,
+ s->ctrl.len);
if (s->ctrl.req.bRequestType == 0) {
switch (s->ctrl.req.bRequest) {
@@ -546,8 +553,9 @@ static int usb_host_handle_control(USBHostDevice *s,
USBPacket *p)
}
if (s->ctrl.req.bRequestType == 1&&
- s->ctrl.req.bRequest == USB_REQ_SET_INTERFACE)
+ s->ctrl.req.bRequest == USB_REQ_SET_INTERFACE) {
return usb_host_set_interface(s, index, value);
+ }
/* The rest are asynchronous */
@@ -562,12 +570,12 @@ static int usb_host_handle_control(USBHostDevice *s,
USBPacket *p)
aurb->hdev = s;
aurb->packet = p;
- /*
+ /*
* Setup ctrl transfer.
*
* s->ctrl is layed out such that data buffer immediately follows
* 'req' struct which is exactly what usbdevfs expects.
- */
+ */
urb =&aurb->urb;
urb->type = USBDEVFS_URB_TYPE_CONTROL;
@@ -604,9 +612,10 @@ static int do_token_setup(USBDevice *dev, USBPacket *p)
USBHostDevice *s = (USBHostDevice *) dev;
int ret = 0;
- if (p->len != 8)
+ if (p->len != 8) {
return USB_RET_STALL;
-
+ }
+
memcpy(&s->ctrl.req, p->data, 8);
s->ctrl.len = le16_to_cpu(s->ctrl.req.wLength);
s->ctrl.offset = 0;
@@ -614,17 +623,20 @@ static int do_token_setup(USBDevice *dev, USBPacket *p)
if (s->ctrl.req.bRequestType& USB_DIR_IN) {
ret = usb_host_handle_control(s, p);
- if (ret< 0)
+ if (ret< 0) {
return ret;
+ }
- if (ret< s->ctrl.len)
+ if (ret< s->ctrl.len) {
s->ctrl.len = ret;
+ }
s->ctrl.state = CTRL_STATE_DATA;
} else {
- if (s->ctrl.len == 0)
+ if (s->ctrl.len == 0) {
s->ctrl.state = CTRL_STATE_ACK;
- else
+ } else {
s->ctrl.state = CTRL_STATE_DATA;
+ }
}
return ret;
@@ -635,16 +647,17 @@ static int do_token_in(USBDevice *dev, USBPacket *p)
USBHostDevice *s = (USBHostDevice *) dev;
int ret = 0;
- if (p->devep != 0)
+ if (p->devep != 0) {
return usb_host_handle_data(s, p);
+ }
switch(s->ctrl.state) {
case CTRL_STATE_ACK:
if (!(s->ctrl.req.bRequestType& USB_DIR_IN)) {
ret = usb_host_handle_control(s, p);
- if (ret == USB_RET_ASYNC)
+ if (ret == USB_RET_ASYNC) {
return USB_RET_ASYNC;
-
+ }
s->ctrl.state = CTRL_STATE_IDLE;
return ret> 0 ? 0 : ret;
}
@@ -654,12 +667,14 @@ static int do_token_in(USBDevice *dev, USBPacket *p)
case CTRL_STATE_DATA:
if (s->ctrl.req.bRequestType& USB_DIR_IN) {
int len = s->ctrl.len - s->ctrl.offset;
- if (len> p->len)
+ if (len> p->len) {
len = p->len;
+ }
memcpy(p->data, s->ctrl.buffer + s->ctrl.offset, len);
s->ctrl.offset += len;
- if (s->ctrl.offset>= s->ctrl.len)
+ if (s->ctrl.offset>= s->ctrl.len) {
s->ctrl.state = CTRL_STATE_ACK;
+ }
return len;
}
@@ -675,8 +690,9 @@ static int do_token_out(USBDevice *dev, USBPacket *p)
{
USBHostDevice *s = (USBHostDevice *) dev;
- if (p->devep != 0)
+ if (p->devep != 0) {
return usb_host_handle_data(s, p);
+ }
switch(s->ctrl.state) {
case CTRL_STATE_ACK:
@@ -691,12 +707,14 @@ static int do_token_out(USBDevice *dev, USBPacket *p)
case CTRL_STATE_DATA:
if (!(s->ctrl.req.bRequestType& USB_DIR_IN)) {
int len = s->ctrl.len - s->ctrl.offset;
- if (len> p->len)
+ if (len> p->len) {
len = p->len;
+ }
memcpy(s->ctrl.buffer + s->ctrl.offset, p->data, len);
s->ctrl.offset += len;
- if (s->ctrl.offset>= s->ctrl.len)
+ if (s->ctrl.offset>= s->ctrl.len) {
s->ctrl.state = CTRL_STATE_ACK;
+ }
return len;
}
@@ -734,8 +752,9 @@ static int usb_host_handle_packet(USBDevice *s, USBPacket
*p)
}
/* Rest of the PIDs must match our address */
- if (s->state< USB_STATE_DEFAULT || p->devaddr != s->addr)
+ if (s->state< USB_STATE_DEFAULT || p->devaddr != s->addr) {
return USB_RET_NODEV;
+ }
switch (p->pid) {
case USB_TOKEN_SETUP:
@@ -746,7 +765,7 @@ static int usb_host_handle_packet(USBDevice *s, USBPacket
*p)
case USB_TOKEN_OUT:
return do_token_out(s, p);
-
+
default:
return USB_RET_STALL;
}
@@ -775,8 +794,9 @@ static int usb_linux_update_endp_table(USBHostDevice *s)
}
/* in address state */
- if (configuration == 0)
+ if (configuration == 0) {
return 1;
+ }
/* get the desired configuration, interface, and endpoint descriptors
* from device description */
@@ -822,15 +842,17 @@ static int usb_linux_update_endp_table(USBHostDevice *s)
}
/* advance to the endpoints */
- while (i< length&& descriptors[i +1] != USB_DT_ENDPOINT)
+ while (i< length&& descriptors[i +1] != USB_DT_ENDPOINT) {
i += descriptors[i];
+ }
if (i>= length)
break;
while (i< length) {
- if (descriptors[i + 1] != USB_DT_ENDPOINT)
+ if (descriptors[i + 1] != USB_DT_ENDPOINT) {
break;
+ }
devep = descriptors[i + 2];
switch (descriptors[i + 3]& 0x3) {
@@ -866,9 +888,9 @@ static int usb_host_open(USBHostDevice *dev, int bus_num,
struct usbdevfs_connectinfo ci;
char buf[1024];
- if (dev->fd != -1)
+ if (dev->fd != -1) {
goto fail;
-
+ }
printf("husb: open device %d.%d\n", bus_num, addr);
if (!usb_host_device_path) {
@@ -899,21 +921,23 @@ static int usb_host_open(USBHostDevice *dev, int bus_num,
{
int x;
printf("=== begin dumping device descriptor data ===\n");
- for (x = 0; x< dev->descr_len; x++)
+ for (x = 0; x< dev->descr_len; x++) {
printf("%02x ", dev->descr[x]);
+ }
printf("\n=== end dumping device descriptor data ===\n");
}
#endif
- /*
- * Initial configuration is -1 which makes us claim first
+ /*
+ * Initial configuration is -1 which makes us claim first
* available config. We used to start with 1, which does not
- * always work. I've seen devices where first config starts
+ * always work. I've seen devices where first config starts
* with 2.
*/
- if (!usb_host_claim_interfaces(dev, -1))
+ if (!usb_host_claim_interfaces(dev, -1)) {
goto fail;
+ }
ret = ioctl(fd, USBDEVFS_CONNECTINFO,&ci);
if (ret< 0) {
@@ -924,20 +948,23 @@ static int usb_host_open(USBHostDevice *dev, int bus_num,
printf("husb: grabbed usb device %d.%d\n", bus_num, addr);
ret = usb_linux_update_endp_table(dev);
- if (ret)
+ if (ret) {
goto fail;
+ }
- if (ci.slow)
+ if (ci.slow) {
dev->dev.speed = USB_SPEED_LOW;
- else
+ } else {
dev->dev.speed = USB_SPEED_HIGH;
+ }
- if (!prod_name || prod_name[0] == '\0')
+ if (!prod_name || prod_name[0] == '\0') {
snprintf(dev->dev.product_desc, sizeof(dev->dev.product_desc),
"host:%d.%d", bus_num, addr);
- else
+ } else {
pstrcpy(dev->dev.product_desc, sizeof(dev->dev.product_desc),
prod_name);
+ }
/* USB devio uses 'write' flag to check for async completions */
qemu_set_fd_handler(dev->fd, NULL, async_complete, dev);
@@ -947,15 +974,17 @@ static int usb_host_open(USBHostDevice *dev, int bus_num,
fail:
dev->fd = -1;
- if (fd != -1)
+ if (fd != -1) {
close(fd);
+ }
return -1;
}
static int usb_host_close(USBHostDevice *dev)
{
- if (dev->fd == -1)
+ if (dev->fd == -1) {
return -1;
+ }
qemu_set_fd_handler(dev->fd, NULL, NULL, NULL);
dev->closing = 1;
@@ -1012,8 +1041,9 @@ USBDevice *usb_host_device_open(const char *devname)
dev = usb_create(NULL /* FIXME */, "usb-host");
if (strstr(devname, "auto:")) {
- if (parse_filter(devname,&filter)< 0)
+ if (parse_filter(devname,&filter)< 0) {
goto fail;
+ }
} else {
if ((p = strchr(devname, '.'))) {
filter.bus_num = strtoul(devname, NULL, 0);
@@ -1049,13 +1079,13 @@ int usb_host_device_close(const char *devname)
int bus_num, addr;
USBHostDevice *s;
- if (strstr(devname, "auto:"))
+ if (strstr(devname, "auto:")) {
return usb_host_auto_del(devname);
-
- if (usb_host_find_device(&bus_num,&addr, product_name,
sizeof(product_name),
- devname)< 0)
+ }
+ if (usb_host_find_device(&bus_num,&addr, product_name,
+ sizeof(product_name), devname)< 0) {
return -1;
-
+ }
s = hostdev_find(bus_num, addr);
if (s) {
usb_device_delete_addr(s->bus_num, s->dev.addr);
@@ -1073,15 +1103,18 @@ static int get_tag_value(char *buf, int buf_size,
const char *p;
char *q;
p = strstr(str, tag);
- if (!p)
+ if (!p) {
return -1;
+ }
p += strlen(tag);
- while (qemu_isspace(*p))
+ while (qemu_isspace(*p)) {
p++;
+ }
q = buf;
while (*p != '\0'&& !strchr(stopchars, *p)) {
- if ((q - buf)< (buf_size - 1))
+ if ((q - buf)< (buf_size - 1)) {
*q++ = *p;
+ }
p++;
}
*q = '\0';
@@ -1116,51 +1149,62 @@ static int usb_host_scan_dev(void *opaque, USBScanFunc
*func)
device_count = 0;
bus_num = addr = speed = class_id = product_id = vendor_id = 0;
for(;;) {
- if (fgets(line, sizeof(line), f) == NULL)
+ if (fgets(line, sizeof(line), f) == NULL) {
break;
- if (strlen(line)> 0)
+ }
+ if (strlen(line)> 0) {
line[strlen(line) - 1] = '\0';
+ }
if (line[0] == 'T'&& line[1] == ':') {
if (device_count&& (vendor_id || product_id)) {
/* New device. Add the previously discovered device. */
ret = func(opaque, bus_num, addr, class_id, vendor_id,
product_id, product_name, speed);
- if (ret)
+ if (ret) {
goto the_end;
+ }
}
- if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ")< 0)
+ if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ")< 0) {
goto fail;
+ }
bus_num = atoi(buf);
- if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ")< 0)
+ if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ")< 0) {
goto fail;
+ }
addr = atoi(buf);
- if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ")< 0)
+ if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ")< 0) {
goto fail;
- if (!strcmp(buf, "480"))
+ }
+ if (!strcmp(buf, "480")) {
speed = USB_SPEED_HIGH;
- else if (!strcmp(buf, "1.5"))
+ } else if (!strcmp(buf, "1.5")) {
speed = USB_SPEED_LOW;
- else
+ } else {
speed = USB_SPEED_FULL;
+ }
product_name[0] = '\0';
class_id = 0xff;
device_count++;
product_id = 0;
vendor_id = 0;
} else if (line[0] == 'P'&& line[1] == ':') {
- if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ")< 0)
+ if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ")< 0) {
goto fail;
+ }
vendor_id = strtoul(buf, NULL, 16);
- if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ")< 0)
+ if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ")< 0) {
goto fail;
+ }
product_id = strtoul(buf, NULL, 16);
} else if (line[0] == 'S'&& line[1] == ':') {
- if (get_tag_value(buf, sizeof(buf), line, "Product=", "")< 0)
+ if (get_tag_value(buf, sizeof(buf), line, "Product=", "")< 0) {
goto fail;
+ }
pstrcpy(product_name, sizeof(product_name), buf);
} else if (line[0] == 'D'&& line[1] == ':') {
- if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (")< 0)
+ if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (")< 0) {
goto fail;
+ }
class_id = strtoul(buf, NULL, 16);
}
fail: ;
@@ -1171,8 +1215,9 @@ static int usb_host_scan_dev(void *opaque, USBScanFunc
*func)
product_id, product_name, speed);
}
the_end:
- if (f)
+ if (f) {
fclose(f);
+ }
return ret;
}
@@ -1186,7 +1231,8 @@ static int usb_host_scan_dev(void *opaque, USBScanFunc
*func)
*
* @return 0 failed, 1 succeeded ('line' contains data)
*/
-static int usb_host_read_file(char *line, size_t line_size, const char
*device_file, const char *device_name)
+static int usb_host_read_file(char *line, size_t line_size,
+ const char *device_file, const char *device_name)
{
FILE *f;
int ret = 0;
@@ -1228,59 +1274,71 @@ static int usb_host_scan_sys(void *opaque, USBScanFunc
*func)
while ((de = readdir(dir))) {
if (de->d_name[0] != '.'&& !strchr(de->d_name, ':')) {
char *tmpstr = de->d_name;
- if (!strncmp(de->d_name, "usb", 3))
+ if (!strncmp(de->d_name, "usb", 3)) {
tmpstr += 3;
+ }
bus_num = atoi(tmpstr);
- if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name))
+ if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name))
{
goto the_end;
- if (sscanf(line, "%d",&addr) != 1)
+ }
+ if (sscanf(line, "%d",&addr) != 1) {
goto the_end;
-
+ }
if (!usb_host_read_file(line, sizeof(line), "bDeviceClass",
- de->d_name))
+ de->d_name)) {
goto the_end;
- if (sscanf(line, "%x",&class_id) != 1)
+ }
+ if (sscanf(line, "%x",&class_id) != 1) {
goto the_end;
+ }
- if (!usb_host_read_file(line, sizeof(line), "idVendor",
de->d_name))
+ if (!usb_host_read_file(line, sizeof(line), "idVendor",
+ de->d_name)) {
goto the_end;
- if (sscanf(line, "%x",&vendor_id) != 1)
+ }
+ if (sscanf(line, "%x",&vendor_id) != 1) {
goto the_end;
-
+ }
if (!usb_host_read_file(line, sizeof(line), "idProduct",
- de->d_name))
+ de->d_name)) {
goto the_end;
- if (sscanf(line, "%x",&product_id) != 1)
+ }
+ if (sscanf(line, "%x",&product_id) != 1) {
goto the_end;
-
+ }
if (!usb_host_read_file(line, sizeof(line), "product",
de->d_name)) {
*product_name = 0;
} else {
- if (strlen(line)> 0)
+ if (strlen(line)> 0) {
line[strlen(line) - 1] = '\0';
+ }
pstrcpy(product_name, sizeof(product_name), line);
}
- if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name))
+ if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name)) {
goto the_end;
- if (!strcmp(line, "480\n"))
+ }
+ if (!strcmp(line, "480\n")) {
speed = USB_SPEED_HIGH;
- else if (!strcmp(line, "1.5\n"))
+ } else if (!strcmp(line, "1.5\n")) {
speed = USB_SPEED_LOW;
- else
+ } else {
speed = USB_SPEED_FULL;
+ }
ret = func(opaque, bus_num, addr, class_id, vendor_id,
product_id, product_name, speed);
- if (ret)
+ if (ret) {
goto the_end;
+ }
}
}
the_end:
- if (dir)
+ if (dir) {
closedir(dir);
+ }
return ret;
}
@@ -1329,17 +1387,19 @@ static int usb_host_scan(void *opaque, USBScanFunc
*func)
}
found_devices:
if (!usb_fs_type) {
- if (mon)
+ if (mon) {
monitor_printf(mon, "husb: unable to access USB devices\n");
+ }
return -ENOENT;
}
/* the module setting (used later for opening devices) */
usb_host_device_path = qemu_mallocz(strlen(devpath)+1);
strcpy(usb_host_device_path, devpath);
- if (mon)
+ if (mon) {
monitor_printf(mon, "husb: using %s file-system with %s\n",
fs_type[usb_fs_type], usb_host_device_path);
+ }
}
switch (usb_fs_type) {
@@ -1373,27 +1433,29 @@ static int usb_host_auto_scan(void *opaque, int
bus_num, int addr,
QTAILQ_FOREACH(s,&hostdevs, next) {
f =&s->match;
- if (f->bus_num> 0&& f->bus_num != bus_num)
+ if (f->bus_num> 0&& f->bus_num != bus_num) {
continue;
-
- if (f->addr> 0&& f->addr != addr)
+ }
+ if (f->addr> 0&& f->addr != addr) {
continue;
+ }
- if (f->vendor_id> 0&& f->vendor_id != vendor_id)
+ if (f->vendor_id> 0&& f->vendor_id != vendor_id) {
continue;
+ }
- if (f->product_id> 0&& f->product_id != product_id)
+ if (f->product_id> 0&& f->product_id != product_id) {
continue;
-
+ }
/* We got a match */
/* Already attached ? */
- if (s->fd != -1)
+ if (s->fd != -1) {
return 0;
-
+ }
DPRINTF("husb: auto open: bus_num %d addr %d\n", bus_num, addr);
- usb_host_open(s, bus_num, addr, product_name);
+ usb_host_open(s, bus_num, addr, product_name);
}
return 0;
@@ -1407,21 +1469,24 @@ static void usb_host_auto_check(void *unused)
usb_host_scan(NULL, usb_host_auto_scan);
QTAILQ_FOREACH(s,&hostdevs, next) {
- if (s->fd == -1)
+ if (s->fd == -1) {
unconnected++;
+ }
}
if (unconnected == 0) {
/* nothing to watch */
- if (usb_auto_timer)
+ if (usb_auto_timer) {
qemu_del_timer(usb_auto_timer);
+ }
return;
}
if (!usb_auto_timer) {
usb_auto_timer = qemu_new_timer(rt_clock, usb_host_auto_check, NULL);
- if (!usb_auto_timer)
+ if (!usb_auto_timer) {
return;
+ }
}
qemu_mod_timer(usb_auto_timer, qemu_get_clock(rt_clock) + 2000);
}
@@ -1451,13 +1516,15 @@ static int parse_filter(const char *spec, struct
USBAutoFilter *f)
f->product_id = 0;
for (i = BUS; i< DONE; i++) {
- p = strpbrk(p, ":.");
- if (!p) break;
+ p = strpbrk(p, ":.");
+ if (!p) {
+ break;
+ }
p++;
-
- if (*p == '*')
- continue;
+ if (*p == '*') {
+ continue;
+ }
switch(i) {
case BUS: f->bus_num = strtol(p, NULL, 10); break;
case DEV: f->addr = strtol(p, NULL, 10); break;
@@ -1503,8 +1570,9 @@ static const char *usb_class_str(uint8_t class)
{
const struct usb_class_info *p;
for(p = usb_class_info; p->class != -1; p++) {
- if (p->class == class)
+ if (p->class == class) {
break;
+ }
}
return p->class_name;
}
@@ -1534,13 +1602,15 @@ static void usb_info_device(Monitor *mon, int bus_num,
int addr, int class_id,
monitor_printf(mon, " Device %d.%d, speed %s Mb/s\n",
bus_num, addr, speed_str);
class_str = usb_class_str(class_id);
- if (class_str)
+ if (class_str) {
monitor_printf(mon, " %s:", class_str);
- else
+ } else {
monitor_printf(mon, " Class %02x:", class_id);
+ }
monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
- if (product_name[0] != '\0')
+ if (product_name[0] != '\0') {
monitor_printf(mon, ", %s", product_name);
+ }
monitor_printf(mon, "\n");
}
@@ -1559,18 +1629,20 @@ static int usb_host_info_device(void *opaque, int
bus_num, int addr,
static void dec2str(int val, char *str, size_t size)
{
- if (val == 0)
+ if (val == 0) {
snprintf(str, size, "*");
- else
- snprintf(str, size, "%d", val);
+ } else {
+ snprintf(str, size, "%d", val);
+ }
}
static void hex2str(int val, char *str, size_t size)
{
- if (val == 0)
+ if (val == 0) {
snprintf(str, size, "*");
- else
+ } else {
snprintf(str, size, "%04x", val);
+ }
}
void usb_host_info(Monitor *mon)
@@ -1580,8 +1652,10 @@ void usb_host_info(Monitor *mon)
usb_host_scan(mon, usb_host_info_device);
- if (QTAILQ_EMPTY(&hostdevs))
+ if (QTAILQ_EMPTY(&hostdevs)) {
return;
+ }
+
monitor_printf(mon, " Auto filters:\n");
QTAILQ_FOREACH(s,&hostdevs, next) {
char bus[10], addr[10], vid[10], pid[10];