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-rw-r--r--common/usb.c720
1 files changed, 417 insertions, 303 deletions
diff --git a/common/usb.c b/common/usb.c
index 9502f39..ee18152 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -58,9 +58,9 @@
#undef USB_DEBUG
#ifdef USB_DEBUG
-#define USB_PRINTF(fmt,args...) printf (fmt ,##args)
+#define USB_PRINTF(fmt, args...) printf(fmt , ##args)
#else
-#define USB_PRINTF(fmt,args...)
+#define USB_PRINTF(fmt, args...)
#endif
#define USB_BUFSIZ 512
@@ -80,17 +80,19 @@ void usb_scan_devices(void);
int usb_hub_probe(struct usb_device *dev, int ifnum);
void usb_hub_reset(void);
-
+static int hub_port_reset(struct usb_device *dev, int port,
+ unsigned short *portstat);
/***********************************************************************
* wait_ms
*/
-void __inline__ wait_ms(unsigned long ms)
+inline void wait_ms(unsigned long ms)
{
- while(ms-->0)
+ while (ms-- > 0)
udelay(1000);
}
+
/***************************************************************************
* Init USB Device
*/
@@ -99,22 +101,22 @@ int usb_init(void)
{
int result;
- running=0;
- dev_index=0;
- asynch_allowed=1;
+ running = 0;
+ dev_index = 0;
+ asynch_allowed = 1;
usb_hub_reset();
/* init low_level USB */
printf("USB: ");
result = usb_lowlevel_init();
- /* if lowlevel init is OK, scan the bus for devices i.e. search HUBs and configure them */
- if(result==0) {
+ /* if lowlevel init is OK, scan the bus for devices
+ * i.e. search HUBs and configure them */
+ if (result == 0) {
printf("scanning bus for devices... ");
- running=1;
+ running = 1;
usb_scan_devices();
usb_started = 1;
return 0;
- }
- else {
+ } else {
printf("Error, couldn't init Lowlevel part\n");
usb_started = 0;
return -1;
@@ -126,10 +128,15 @@ int usb_init(void)
*/
int usb_stop(void)
{
- asynch_allowed=1;
- usb_started = 0;
- usb_hub_reset();
- return usb_lowlevel_stop();
+ int res = 0;
+
+ if (usb_started) {
+ asynch_allowed = 1;
+ usb_started = 0;
+ usb_hub_reset();
+ res = usb_lowlevel_stop();
+ }
+ return res;
}
/*
@@ -138,7 +145,7 @@ int usb_stop(void)
*/
void usb_disable_asynch(int disable)
{
- asynch_allowed=!disable;
+ asynch_allowed = !disable;
}
@@ -151,9 +158,9 @@ void usb_disable_asynch(int disable)
* submits an Interrupt Message
*/
int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe,
- void *buffer,int transfer_len, int interval)
+ void *buffer, int transfer_len, int interval)
{
- return submit_int_msg(dev,pipe,buffer,transfer_len,interval);
+ return submit_int_msg(dev, pipe, buffer, transfer_len, interval);
}
/*
@@ -170,8 +177,10 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe,
unsigned short value, unsigned short index,
void *data, unsigned short size, int timeout)
{
- if((timeout==0)&&(!asynch_allowed)) /* request for a asynch control pipe is not allowed */
+ if ((timeout == 0) && (!asynch_allowed)) {
+ /* request for a asynch control pipe is not allowed */
return -1;
+ }
/* set setup command */
setup_packet.requesttype = requesttype;
@@ -179,24 +188,25 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe,
setup_packet.value = cpu_to_le16(value);
setup_packet.index = cpu_to_le16(index);
setup_packet.length = cpu_to_le16(size);
- USB_PRINTF("usb_control_msg: request: 0x%X, requesttype: 0x%X, value 0x%X index 0x%X length 0x%X\n",
- request,requesttype,value,index,size);
- dev->status=USB_ST_NOT_PROC; /*not yet processed */
+ USB_PRINTF("usb_control_msg: request: 0x%X, requesttype: 0x%X, " \
+ "value 0x%X index 0x%X length 0x%X\n",
+ request, requesttype, value, index, size);
+ dev->status = USB_ST_NOT_PROC; /*not yet processed */
- submit_control_msg(dev,pipe,data,size,&setup_packet);
- if(timeout==0) {
+ submit_control_msg(dev, pipe, data, size, &setup_packet);
+ if (timeout == 0)
return (int)size;
- }
- while(timeout--) {
- if(!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
- break;
- wait_ms(1);
- }
- if(dev->status==0)
- return dev->act_len;
- else {
+
+ if (dev->status != 0) {
+ /*
+ * Let's wait a while for the timeout to elapse.
+ * It has no real use, but it keeps the interface happy.
+ */
+ wait_ms(timeout);
return -1;
}
+
+ return dev->act_len;
}
/*-------------------------------------------------------------------
@@ -209,15 +219,15 @@ int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
{
if (len < 0)
return -1;
- dev->status=USB_ST_NOT_PROC; /*not yet processed */
- submit_bulk_msg(dev,pipe,data,len);
- while(timeout--) {
- if(!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
+ dev->status = USB_ST_NOT_PROC; /*not yet processed */
+ submit_bulk_msg(dev, pipe, data, len);
+ while (timeout--) {
+ if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
break;
wait_ms(1);
}
- *actual_length=dev->act_len;
- if(dev->status==0)
+ *actual_length = dev->act_len;
+ if (dev->status == 0)
return 0;
else
return -1;
@@ -232,12 +242,54 @@ int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
* returns the max packet size, depending on the pipe direction and
* the configurations values
*/
-int usb_maxpacket(struct usb_device *dev,unsigned long pipe)
+int usb_maxpacket(struct usb_device *dev, unsigned long pipe)
{
- if((pipe & USB_DIR_IN)==0) /* direction is out -> use emaxpacket out */
- return(dev->epmaxpacketout[((pipe>>15) & 0xf)]);
+ /* direction is out -> use emaxpacket out */
+ if ((pipe & USB_DIR_IN) == 0)
+ return dev->epmaxpacketout[((pipe>>15) & 0xf)];
else
- return(dev->epmaxpacketin[((pipe>>15) & 0xf)]);
+ return dev->epmaxpacketin[((pipe>>15) & 0xf)];
+}
+
+/* The routine usb_set_maxpacket_ep() is extracted from the loop of routine
+ * usb_set_maxpacket(), because the optimizer of GCC 4.x chokes on this routine
+ * when it is inlined in 1 single routine. What happens is that the register r3
+ * is used as loop-count 'i', but gets overwritten later on.
+ * This is clearly a compiler bug, but it is easier to workaround it here than
+ * to update the compiler (Occurs with at least several GCC 4.{1,2},x
+ * CodeSourcery compilers like e.g. 2007q3, 2008q1, 2008q3 lite editions on ARM)
+ */
+static void __attribute__((noinline))
+usb_set_maxpacket_ep(struct usb_device *dev, struct usb_endpoint_descriptor *ep)
+{
+ int b;
+
+ b = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+
+ if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+ USB_ENDPOINT_XFER_CONTROL) {
+ /* Control => bidirectional */
+ dev->epmaxpacketout[b] = ep->wMaxPacketSize;
+ dev->epmaxpacketin[b] = ep->wMaxPacketSize;
+ USB_PRINTF("##Control EP epmaxpacketout/in[%d] = %d\n",
+ b, dev->epmaxpacketin[b]);
+ } else {
+ if ((ep->bEndpointAddress & 0x80) == 0) {
+ /* OUT Endpoint */
+ if (ep->wMaxPacketSize > dev->epmaxpacketout[b]) {
+ dev->epmaxpacketout[b] = ep->wMaxPacketSize;
+ USB_PRINTF("##EP epmaxpacketout[%d] = %d\n",
+ b, dev->epmaxpacketout[b]);
+ }
+ } else {
+ /* IN Endpoint */
+ if (ep->wMaxPacketSize > dev->epmaxpacketin[b]) {
+ dev->epmaxpacketin[b] = ep->wMaxPacketSize;
+ USB_PRINTF("##EP epmaxpacketin[%d] = %d\n",
+ b, dev->epmaxpacketin[b]);
+ }
+ } /* if out */
+ } /* if control */
}
/*
@@ -245,35 +297,13 @@ int usb_maxpacket(struct usb_device *dev,unsigned long pipe)
*/
int usb_set_maxpacket(struct usb_device *dev)
{
- int i,ii,b;
- struct usb_endpoint_descriptor *ep;
+ int i, ii;
- for(i=0; i<dev->config.bNumInterfaces;i++) {
- for(ii=0; ii<dev->config.if_desc[i].bNumEndpoints; ii++) {
- ep = &dev->config.if_desc[i].ep_desc[ii];
- b=ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+ for (i = 0; i < dev->config.bNumInterfaces; i++)
+ for (ii = 0; ii < dev->config.if_desc[i].bNumEndpoints; ii++)
+ usb_set_maxpacket_ep(dev,
+ &dev->config.if_desc[i].ep_desc[ii]);
- if((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)==USB_ENDPOINT_XFER_CONTROL) { /* Control => bidirectional */
- dev->epmaxpacketout[b] = ep->wMaxPacketSize;
- dev->epmaxpacketin [b] = ep->wMaxPacketSize;
- USB_PRINTF("##Control EP epmaxpacketout/in[%d] = %d\n",b,dev->epmaxpacketin[b]);
- }
- else {
- if ((ep->bEndpointAddress & 0x80)==0) { /* OUT Endpoint */
- if(ep->wMaxPacketSize > dev->epmaxpacketout[b]) {
- dev->epmaxpacketout[b] = ep->wMaxPacketSize;
- USB_PRINTF("##EP epmaxpacketout[%d] = %d\n",b,dev->epmaxpacketout[b]);
- }
- }
- else { /* IN Endpoint */
- if(ep->wMaxPacketSize > dev->epmaxpacketin[b]) {
- dev->epmaxpacketin[b] = ep->wMaxPacketSize;
- USB_PRINTF("##EP epmaxpacketin[%d] = %d\n",b,dev->epmaxpacketin[b]);
- }
- } /* if out */
- } /* if control */
- } /* for each endpoint */
- }
return 0;
}
@@ -294,8 +324,9 @@ int usb_parse_config(struct usb_device *dev, unsigned char *buffer, int cfgno)
dev->configno = cfgno;
head = (struct usb_descriptor_header *) &buffer[0];
- if(head->bDescriptorType != USB_DT_CONFIG) {
- printf(" ERROR: NOT USB_CONFIG_DESC %x\n", head->bDescriptorType);
+ if (head->bDescriptorType != USB_DT_CONFIG) {
+ printf(" ERROR: NOT USB_CONFIG_DESC %x\n",
+ head->bDescriptorType);
return -1;
}
memcpy(&dev->config, buffer, buffer[0]);
@@ -303,45 +334,52 @@ int usb_parse_config(struct usb_device *dev, unsigned char *buffer, int cfgno)
dev->config.no_of_if = 0;
index = dev->config.bLength;
- /* Ok the first entry must be a configuration entry, now process the others */
+ /* Ok the first entry must be a configuration entry,
+ * now process the others */
head = (struct usb_descriptor_header *) &buffer[index];
- while(index + 1 < dev->config.wTotalLength) {
- switch(head->bDescriptorType) {
- case USB_DT_INTERFACE:
- if(((struct usb_interface_descriptor *) &buffer[index])->
- bInterfaceNumber != curr_if_num) {
- /* this is a new interface, copy new desc */
- ifno = dev->config.no_of_if;
- dev->config.no_of_if++;
- memcpy(&dev->config.if_desc[ifno],
- &buffer[index], buffer[index]);
- dev->config.if_desc[ifno].no_of_ep = 0;
- dev->config.if_desc[ifno].num_altsetting = 1;
- curr_if_num = dev->config.if_desc[ifno].bInterfaceNumber;
- } else {
- /* found alternate setting for the interface */
- dev->config.if_desc[ifno].num_altsetting++;
- }
- break;
- case USB_DT_ENDPOINT:
- epno = dev->config.if_desc[ifno].no_of_ep;
- dev->config.if_desc[ifno].no_of_ep++; /* found an endpoint */
- memcpy(&dev->config.if_desc[ifno].ep_desc[epno],
+ while (index + 1 < dev->config.wTotalLength) {
+ switch (head->bDescriptorType) {
+ case USB_DT_INTERFACE:
+ if (((struct usb_interface_descriptor *) \
+ &buffer[index])->bInterfaceNumber != curr_if_num) {
+ /* this is a new interface, copy new desc */
+ ifno = dev->config.no_of_if;
+ dev->config.no_of_if++;
+ memcpy(&dev->config.if_desc[ifno],
&buffer[index], buffer[index]);
- le16_to_cpus(&(dev->config.if_desc[ifno].ep_desc[epno].wMaxPacketSize));
- USB_PRINTF("if %d, ep %d\n", ifno, epno);
- break;
- default:
- if(head->bLength == 0)
- return 1;
- USB_PRINTF("unknown Description Type : %x\n", head->bDescriptorType);
- {
- ch = (unsigned char *)head;
- for(i = 0; i < head->bLength; i++)
- USB_PRINTF("%02X ", *ch++);
- USB_PRINTF("\n\n\n");
- }
- break;
+ dev->config.if_desc[ifno].no_of_ep = 0;
+ dev->config.if_desc[ifno].num_altsetting = 1;
+ curr_if_num =
+ dev->config.if_desc[ifno].bInterfaceNumber;
+ } else {
+ /* found alternate setting for the interface */
+ dev->config.if_desc[ifno].num_altsetting++;
+ }
+ break;
+ case USB_DT_ENDPOINT:
+ epno = dev->config.if_desc[ifno].no_of_ep;
+ /* found an endpoint */
+ dev->config.if_desc[ifno].no_of_ep++;
+ memcpy(&dev->config.if_desc[ifno].ep_desc[epno],
+ &buffer[index], buffer[index]);
+ le16_to_cpus(&(dev->config.if_desc[ifno].ep_desc[epno].\
+ wMaxPacketSize));
+ USB_PRINTF("if %d, ep %d\n", ifno, epno);
+ break;
+ default:
+ if (head->bLength == 0)
+ return 1;
+
+ USB_PRINTF("unknown Description Type : %x\n",
+ head->bDescriptorType);
+
+ {
+ ch = (unsigned char *)head;
+ for (i = 0; i < head->bLength; i++)
+ USB_PRINTF("%02X ", *ch++);
+ USB_PRINTF("\n\n\n");
+ }
+ break;
}
index += head->bLength;
head = (struct usb_descriptor_header *)&buffer[index];
@@ -360,7 +398,8 @@ int usb_clear_halt(struct usb_device *dev, int pipe)
int endp = usb_pipeendpoint(pipe)|(usb_pipein(pipe)<<7);
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0, endp, NULL, 0, USB_CNTL_TIMEOUT * 3);
+ USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, 0,
+ endp, NULL, 0, USB_CNTL_TIMEOUT * 3);
/* don't clear if failed */
if (result < 0)
@@ -382,7 +421,8 @@ int usb_clear_halt(struct usb_device *dev, int pipe)
/**********************************************************************
* get_descriptor type
*/
-int usb_get_descriptor(struct usb_device *dev, unsigned char type, unsigned char index, void *buf, int size)
+int usb_get_descriptor(struct usb_device *dev, unsigned char type,
+ unsigned char index, void *buf, int size)
{
int res;
res = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
@@ -395,32 +435,36 @@ int usb_get_descriptor(struct usb_device *dev, unsigned char type, unsigned char
/**********************************************************************
* gets configuration cfgno and store it in the buffer
*/
-int usb_get_configuration_no(struct usb_device *dev,unsigned char *buffer,int cfgno)
+int usb_get_configuration_no(struct usb_device *dev,
+ unsigned char *buffer, int cfgno)
{
int result;
unsigned int tmp;
struct usb_config_descriptor *config;
- config=(struct usb_config_descriptor *)&buffer[0];
- result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 8);
- if (result < 8) {
+ config = (struct usb_config_descriptor *)&buffer[0];
+ result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9);
+ if (result < 9) {
if (result < 0)
- printf("unable to get descriptor, error %lX\n",dev->status);
+ printf("unable to get descriptor, error %lX\n",
+ dev->status);
else
- printf("config descriptor too short (expected %i, got %i)\n",8,result);
+ printf("config descriptor too short " \
+ "(expected %i, got %i)\n", 9, result);
return -1;
}
tmp = le16_to_cpu(config->wTotalLength);
if (tmp > USB_BUFSIZ) {
- USB_PRINTF("usb_get_configuration_no: failed to get descriptor - too long: %d\n",
- tmp);
+ USB_PRINTF("usb_get_configuration_no: failed to get " \
+ "descriptor - too long: %d\n", tmp);
return -1;
}
result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, tmp);
- USB_PRINTF("get_conf_no %d Result %d, wLength %d\n",cfgno,result,tmp);
+ USB_PRINTF("get_conf_no %d Result %d, wLength %d\n",
+ cfgno, result, tmp);
return result;
}
@@ -432,11 +476,11 @@ int usb_set_address(struct usb_device *dev)
{
int res;
- USB_PRINTF("set address %d\n",dev->devnum);
- res=usb_control_msg(dev, usb_snddefctrl(dev),
- USB_REQ_SET_ADDRESS, 0,
- (dev->devnum),0,
- NULL,0, USB_CNTL_TIMEOUT);
+ USB_PRINTF("set address %d\n", dev->devnum);
+ res = usb_control_msg(dev, usb_snddefctrl(dev),
+ USB_REQ_SET_ADDRESS, 0,
+ (dev->devnum), 0,
+ NULL, 0, USB_CNTL_TIMEOUT);
return res;
}
@@ -460,16 +504,19 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate)
}
/*
* We should return now for devices with only one alternate setting.
- * According to 9.4.10 of the Universal Serial Bus Specification Revision 2.0
- * such devices can return with a STALL. This results in some USB sticks
- * timeouting during initialization and then being unusable in U-Boot.
+ * According to 9.4.10 of the Universal Serial Bus Specification
+ * Revision 2.0 such devices can return with a STALL. This results in
+ * some USB sticks timeouting during initialization and then being
+ * unusable in U-Boot.
*/
if (if_face->num_altsetting == 1)
return 0;
- if ((ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, alternate,
- interface, NULL, 0, USB_CNTL_TIMEOUT * 5)) < 0)
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE,
+ alternate, interface, NULL, 0,
+ USB_CNTL_TIMEOUT * 5);
+ if (ret < 0)
return ret;
return 0;
@@ -481,18 +528,17 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate)
int usb_set_configuration(struct usb_device *dev, int configuration)
{
int res;
- USB_PRINTF("set configuration %d\n",configuration);
+ USB_PRINTF("set configuration %d\n", configuration);
/* set setup command */
- res=usb_control_msg(dev, usb_sndctrlpipe(dev,0),
- USB_REQ_SET_CONFIGURATION, 0,
- configuration,0,
- NULL,0, USB_CNTL_TIMEOUT);
- if(res==0) {
+ res = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ USB_REQ_SET_CONFIGURATION, 0,
+ configuration, 0,
+ NULL, 0, USB_CNTL_TIMEOUT);
+ if (res == 0) {
dev->toggle[0] = 0;
dev->toggle[1] = 0;
return 0;
- }
- else
+ } else
return -1;
}
@@ -519,11 +565,13 @@ int usb_set_idle(struct usb_device *dev, int ifnum, int duration, int report_id)
/********************************************************************
* get report
*/
-int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type, unsigned char id, void *buf, int size)
+int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type,
+ unsigned char id, void *buf, int size)
{
return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
- USB_REQ_GET_REPORT, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT);
+ USB_REQ_GET_REPORT,
+ USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ (type << 8) + id, ifnum, buf, size, USB_CNTL_TIMEOUT);
}
/********************************************************************
@@ -540,7 +588,8 @@ int usb_get_class_descriptor(struct usb_device *dev, int ifnum,
/********************************************************************
* get string index in buffer
*/
-int usb_get_string(struct usb_device *dev, unsigned short langid, unsigned char index, void *buf, int size)
+int usb_get_string(struct usb_device *dev, unsigned short langid,
+ unsigned char index, void *buf, int size)
{
int i;
int result;
@@ -631,17 +680,19 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
if (!dev->have_langid) {
err = usb_string_sub(dev, 0, 0, tbuf);
if (err < 0) {
- USB_PRINTF("error getting string descriptor 0 (error=%x)\n",dev->status);
+ USB_PRINTF("error getting string descriptor 0 " \
+ "(error=%x)\n", dev->status);
return -1;
} else if (tbuf[0] < 4) {
USB_PRINTF("string descriptor 0 too short\n");
return -1;
} else {
dev->have_langid = -1;
- dev->string_langid = tbuf[2] | (tbuf[3]<< 8);
+ dev->string_langid = tbuf[2] | (tbuf[3] << 8);
/* always use the first langid listed */
- USB_PRINTF("USB device number %d default language ID 0x%x\n",
- dev->devnum, dev->string_langid);
+ USB_PRINTF("USB device number %d default " \
+ "language ID 0x%x\n",
+ dev->devnum, dev->string_langid);
}
}
@@ -673,9 +724,9 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
/* returns a pointer to the device with the index [index].
* if the device is not assigned (dev->devnum==-1) returns NULL
*/
-struct usb_device * usb_get_dev_index(int index)
+struct usb_device *usb_get_dev_index(int index)
{
- if(usb_dev[index].devnum==-1)
+ if (usb_dev[index].devnum == -1)
return NULL;
else
return &usb_dev[index];
@@ -685,21 +736,22 @@ struct usb_device * usb_get_dev_index(int index)
/* returns a pointer of a new device structure or NULL, if
* no device struct is available
*/
-struct usb_device * usb_alloc_new_device(void)
+struct usb_device *usb_alloc_new_device(void)
{
int i;
- USB_PRINTF("New Device %d\n",dev_index);
- if(dev_index==USB_MAX_DEVICE) {
- printf("ERROR, too many USB Devices, max=%d\n",USB_MAX_DEVICE);
+ USB_PRINTF("New Device %d\n", dev_index);
+ if (dev_index == USB_MAX_DEVICE) {
+ printf("ERROR, too many USB Devices, max=%d\n", USB_MAX_DEVICE);
return NULL;
}
- usb_dev[dev_index].devnum=dev_index+1; /* default Address is 0, real addresses start with 1 */
- usb_dev[dev_index].maxchild=0;
- for(i=0;i<USB_MAXCHILDREN;i++)
- usb_dev[dev_index].children[i]=NULL;
- usb_dev[dev_index].parent=NULL;
+ /* default Address is 0, real addresses start with 1 */
+ usb_dev[dev_index].devnum = dev_index + 1;
+ usb_dev[dev_index].maxchild = 0;
+ for (i = 0; i < USB_MAXCHILDREN; i++)
+ usb_dev[dev_index].children[i] = NULL;
+ usb_dev[dev_index].parent = NULL;
dev_index++;
- return &usb_dev[dev_index-1];
+ return &usb_dev[dev_index - 1];
}
@@ -716,23 +768,35 @@ int usb_new_device(struct usb_device *dev)
int tmp;
unsigned char tmpbuf[USB_BUFSIZ];
- dev->descriptor.bMaxPacketSize0 = 8; /* Start off at 8 bytes */
- dev->maxpacketsize = 0; /* Default to 8 byte max packet size */
- dev->epmaxpacketin [0] = 8;
- dev->epmaxpacketout[0] = 8;
-
/* We still haven't set the Address yet */
addr = dev->devnum;
dev->devnum = 0;
-#undef NEW_INIT_SEQ
-#ifdef NEW_INIT_SEQ
- /* this is a Windows scheme of initialization sequence, with double
- * reset of the device. Some equipment is said to work only with such
- * init sequence; this patch is based on the work by Alan Stern:
- * http://sourceforge.net/mailarchive/forum.php?thread_id=5729457&forum_id=5398
+#ifdef CONFIG_LEGACY_USB_INIT_SEQ
+ /* this is the old and known way of initializing devices, it is
+ * different than what Windows and Linux are doing. Windows and Linux
+ * both retrieve 64 bytes while reading the device descriptor
+ * Several USB stick devices report ERR: CTL_TIMEOUT, caused by an
+ * invalid header while reading 8 bytes as device descriptor. */
+ dev->descriptor.bMaxPacketSize0 = 8; /* Start off at 8 bytes */
+ dev->maxpacketsize = PACKET_SIZE_8;
+ dev->epmaxpacketin[0] = 8;
+ dev->epmaxpacketout[0] = 8;
+
+ err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor, 8);
+ if (err < 8) {
+ printf("\n USB device not responding, " \
+ "giving up (status=%lX)\n", dev->status);
+ return 1;
+ }
+#else
+ /* This is a Windows scheme of initialization sequence, with double
+ * reset of the device (Linux uses the same sequence)
+ * Some equipment is said to work only with such init sequence; this
+ * patch is based on the work by Alan Stern:
+ * http://sourceforge.net/mailarchive/forum.php?
+ * thread_id=5729457&forum_id=5398
*/
- int j;
struct usb_device_descriptor *desc;
int port = -1;
struct usb_device *parent = dev->parent;
@@ -741,21 +805,26 @@ int usb_new_device(struct usb_device *dev)
/* send 64-byte GET-DEVICE-DESCRIPTOR request. Since the descriptor is
* only 18 bytes long, this will terminate with a short packet. But if
* the maxpacket size is 8 or 16 the device may be waiting to transmit
- * some more. */
+ * some more, or keeps on retransmitting the 8 byte header. */
desc = (struct usb_device_descriptor *)tmpbuf;
- desc->bMaxPacketSize0 = 0;
- for (j = 0; j < 3; ++j) {
- err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64);
- if (err < 0) {
- USB_PRINTF("usb_new_device: 64 byte descr\n");
- break;
- }
+ dev->descriptor.bMaxPacketSize0 = 64; /* Start off at 64 bytes */
+ /* Default to 64 byte max packet size */
+ dev->maxpacketsize = PACKET_SIZE_64;
+ dev->epmaxpacketin[0] = 64;
+ dev->epmaxpacketout[0] = 64;
+
+ err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64);
+ if (err < 0) {
+ USB_PRINTF("usb_new_device: usb_get_descriptor() failed\n");
+ return 1;
}
+
dev->descriptor.bMaxPacketSize0 = desc->bMaxPacketSize0;
/* find the port number we're at */
if (parent) {
+ int j;
for (j = 0; j < parent->maxchild; j++) {
if (parent->children[j] == dev) {
@@ -764,7 +833,7 @@ int usb_new_device(struct usb_device *dev)
}
}
if (port < 0) {
- printf("usb_new_device: cannot locate device's port..\n");
+ printf("usb_new_device:cannot locate device's port.\n");
return 1;
}
@@ -775,29 +844,31 @@ int usb_new_device(struct usb_device *dev)
return 1;
}
}
-#else
- /* and this is the old and known way of initializing devices */
- err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor, 8);
- if (err < 8) {
- printf("\n USB device not responding, giving up (status=%lX)\n",dev->status);
- return 1;
- }
#endif
- dev->epmaxpacketin [0] = dev->descriptor.bMaxPacketSize0;
+ dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0;
dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0;
switch (dev->descriptor.bMaxPacketSize0) {
- case 8: dev->maxpacketsize = 0; break;
- case 16: dev->maxpacketsize = 1; break;
- case 32: dev->maxpacketsize = 2; break;
- case 64: dev->maxpacketsize = 3; break;
+ case 8:
+ dev->maxpacketsize = PACKET_SIZE_8;
+ break;
+ case 16:
+ dev->maxpacketsize = PACKET_SIZE_16;
+ break;
+ case 32:
+ dev->maxpacketsize = PACKET_SIZE_32;
+ break;
+ case 64:
+ dev->maxpacketsize = PACKET_SIZE_64;
+ break;
}
dev->devnum = addr;
err = usb_set_address(dev); /* set address */
if (err < 0) {
- printf("\n USB device not accepting new address (error=%lX)\n", dev->status);
+ printf("\n USB device not accepting new address " \
+ "(error=%lX)\n", dev->status);
return 1;
}
@@ -805,12 +876,15 @@ int usb_new_device(struct usb_device *dev)
tmp = sizeof(dev->descriptor);
- err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor, sizeof(dev->descriptor));
+ err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
+ &dev->descriptor, sizeof(dev->descriptor));
if (err < tmp) {
if (err < 0)
- printf("unable to get device descriptor (error=%d)\n",err);
+ printf("unable to get device descriptor (error=%d)\n",
+ err);
else
- printf("USB device descriptor short read (expected %i, got %i)\n",tmp,err);
+ printf("USB device descriptor short read " \
+ "(expected %i, got %i)\n", tmp, err);
return 1;
}
/* correct le values */
@@ -819,30 +893,35 @@ int usb_new_device(struct usb_device *dev)
le16_to_cpus(&dev->descriptor.idProduct);
le16_to_cpus(&dev->descriptor.bcdDevice);
/* only support for one config for now */
- usb_get_configuration_no(dev,&tmpbuf[0],0);
- usb_parse_config(dev,&tmpbuf[0],0);
+ usb_get_configuration_no(dev, &tmpbuf[0], 0);
+ usb_parse_config(dev, &tmpbuf[0], 0);
usb_set_maxpacket(dev);
/* we set the default configuration here */
if (usb_set_configuration(dev, dev->config.bConfigurationValue)) {
- printf("failed to set default configuration len %d, status %lX\n",dev->act_len,dev->status);
+ printf("failed to set default configuration " \
+ "len %d, status %lX\n", dev->act_len, dev->status);
return -1;
}
USB_PRINTF("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n",
- dev->descriptor.iManufacturer, dev->descriptor.iProduct, dev->descriptor.iSerialNumber);
+ dev->descriptor.iManufacturer, dev->descriptor.iProduct,
+ dev->descriptor.iSerialNumber);
memset(dev->mf, 0, sizeof(dev->mf));
memset(dev->prod, 0, sizeof(dev->prod));
memset(dev->serial, 0, sizeof(dev->serial));
if (dev->descriptor.iManufacturer)
- usb_string(dev, dev->descriptor.iManufacturer, dev->mf, sizeof(dev->mf));
+ usb_string(dev, dev->descriptor.iManufacturer,
+ dev->mf, sizeof(dev->mf));
if (dev->descriptor.iProduct)
- usb_string(dev, dev->descriptor.iProduct, dev->prod, sizeof(dev->prod));
+ usb_string(dev, dev->descriptor.iProduct,
+ dev->prod, sizeof(dev->prod));
if (dev->descriptor.iSerialNumber)
- usb_string(dev, dev->descriptor.iSerialNumber, dev->serial, sizeof(dev->serial));
+ usb_string(dev, dev->descriptor.iSerialNumber,
+ dev->serial, sizeof(dev->serial));
USB_PRINTF("Manufacturer %s\n", dev->mf);
USB_PRINTF("Product %s\n", dev->prod);
USB_PRINTF("SerialNumber %s\n", dev->serial);
/* now prode if the device is a hub */
- usb_hub_probe(dev,0);
+ usb_hub_probe(dev, 0);
return 0;
}
@@ -853,15 +932,15 @@ void usb_scan_devices(void)
struct usb_device *dev;
/* first make all devices unknown */
- for(i=0;i<USB_MAX_DEVICE;i++) {
- memset(&usb_dev[i],0,sizeof(struct usb_device));
+ for (i = 0; i < USB_MAX_DEVICE; i++) {
+ memset(&usb_dev[i], 0, sizeof(struct usb_device));
usb_dev[i].devnum = -1;
}
- dev_index=0;
+ dev_index = 0;
/* device 0 is always present (root hub, so let it analyze) */
- dev=usb_alloc_new_device();
+ dev = usb_alloc_new_device();
usb_new_device(dev);
- printf("%d USB Device(s) found\n",dev_index);
+ printf("%d USB Device(s) found\n", dev_index);
/* insert "driver" if possible */
#ifdef CONFIG_USB_KEYBOARD
drv_usb_kbd_init();
@@ -878,9 +957,9 @@ void usb_scan_devices(void)
#undef USB_HUB_DEBUG
#ifdef USB_HUB_DEBUG
-#define USB_HUB_PRINTF(fmt,args...) printf (fmt ,##args)
+#define USB_HUB_PRINTF(fmt, args...) printf(fmt , ##args)
#else
-#define USB_HUB_PRINTF(fmt,args...)
+#define USB_HUB_PRINTF(fmt, args...)
#endif
@@ -898,19 +977,22 @@ int usb_get_hub_descriptor(struct usb_device *dev, void *data, int size)
int usb_clear_hub_feature(struct usb_device *dev, int feature)
{
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- USB_REQ_CLEAR_FEATURE, USB_RT_HUB, feature, 0, NULL, 0, USB_CNTL_TIMEOUT);
+ USB_REQ_CLEAR_FEATURE, USB_RT_HUB, feature,
+ 0, NULL, 0, USB_CNTL_TIMEOUT);
}
int usb_clear_port_feature(struct usb_device *dev, int port, int feature)
{
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- USB_REQ_CLEAR_FEATURE, USB_RT_PORT, feature, port, NULL, 0, USB_CNTL_TIMEOUT);
+ USB_REQ_CLEAR_FEATURE, USB_RT_PORT, feature,
+ port, NULL, 0, USB_CNTL_TIMEOUT);
}
int usb_set_port_feature(struct usb_device *dev, int port, int feature)
{
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- USB_REQ_SET_FEATURE, USB_RT_PORT, feature, port, NULL, 0, USB_CNTL_TIMEOUT);
+ USB_REQ_SET_FEATURE, USB_RT_PORT, feature,
+ port, NULL, 0, USB_CNTL_TIMEOUT);
}
int usb_get_hub_status(struct usb_device *dev, void *data)
@@ -933,27 +1015,27 @@ static void usb_hub_power_on(struct usb_hub_device *hub)
int i;
struct usb_device *dev;
- dev=hub->pusb_dev;
+ dev = hub->pusb_dev;
/* Enable power to the ports */
USB_HUB_PRINTF("enabling power on all ports\n");
for (i = 0; i < dev->maxchild; i++) {
usb_set_port_feature(dev, i + 1, USB_PORT_FEAT_POWER);
- USB_HUB_PRINTF("port %d returns %lX\n",i+1,dev->status);
+ USB_HUB_PRINTF("port %d returns %lX\n", i + 1, dev->status);
wait_ms(hub->desc.bPwrOn2PwrGood * 2);
}
}
void usb_hub_reset(void)
{
- usb_hub_index=0;
+ usb_hub_index = 0;
}
struct usb_hub_device *usb_hub_allocate(void)
{
- if(usb_hub_index<USB_MAX_HUB) {
+ if (usb_hub_index < USB_MAX_HUB)
return &hub_dev[usb_hub_index++];
- }
- printf("ERROR: USB_MAX_HUB (%d) reached\n",USB_MAX_HUB);
+
+ printf("ERROR: USB_MAX_HUB (%d) reached\n", USB_MAX_HUB);
return NULL;
}
@@ -966,39 +1048,42 @@ static int hub_port_reset(struct usb_device *dev, int port,
struct usb_port_status portsts;
unsigned short portstatus, portchange;
-
USB_HUB_PRINTF("hub_port_reset: resetting port %d...\n", port);
- for(tries=0;tries<MAX_TRIES;tries++) {
+ for (tries = 0; tries < MAX_TRIES; tries++) {
usb_set_port_feature(dev, port + 1, USB_PORT_FEAT_RESET);
wait_ms(200);
- if (usb_get_port_status(dev, port + 1, &portsts)<0) {
- USB_HUB_PRINTF("get_port_status failed status %lX\n",dev->status);
+ if (usb_get_port_status(dev, port + 1, &portsts) < 0) {
+ USB_HUB_PRINTF("get_port_status failed status %lX\n",
+ dev->status);
return -1;
}
portstatus = le16_to_cpu(portsts.wPortStatus);
portchange = le16_to_cpu(portsts.wPortChange);
- USB_HUB_PRINTF("portstatus %x, change %x, %s\n", portstatus ,portchange,
- portstatus&(1<<USB_PORT_FEAT_LOWSPEED) ? "Low Speed" : "High Speed");
- USB_HUB_PRINTF("STAT_C_CONNECTION = %d STAT_CONNECTION = %d USB_PORT_STAT_ENABLE %d\n",
+ USB_HUB_PRINTF("portstatus %x, change %x, %s\n",
+ portstatus, portchange,
+ portstatus&(1<<USB_PORT_FEAT_LOWSPEED) ? \
+ "Low Speed" : "High Speed");
+ USB_HUB_PRINTF("STAT_C_CONNECTION = %d STAT_CONNECTION = %d" \
+ " USB_PORT_STAT_ENABLE %d\n",
(portchange & USB_PORT_STAT_C_CONNECTION) ? 1 : 0,
(portstatus & USB_PORT_STAT_CONNECTION) ? 1 : 0,
(portstatus & USB_PORT_STAT_ENABLE) ? 1 : 0);
+
if ((portchange & USB_PORT_STAT_C_CONNECTION) ||
!(portstatus & USB_PORT_STAT_CONNECTION))
return -1;
- if (portstatus & USB_PORT_STAT_ENABLE) {
-
+ if (portstatus & USB_PORT_STAT_ENABLE)
break;
- }
wait_ms(200);
}
- if (tries==MAX_TRIES) {
- USB_HUB_PRINTF("Cannot enable port %i after %i retries, disabling port.\n", port+1, MAX_TRIES);
+ if (tries == MAX_TRIES) {
+ USB_HUB_PRINTF("Cannot enable port %i after %i retries, " \
+ "disabling port.\n", port + 1, MAX_TRIES);
USB_HUB_PRINTF("Maybe the USB cable is bad?\n");
return -1;
}
@@ -1006,7 +1091,6 @@ static int hub_port_reset(struct usb_device *dev, int port,
usb_clear_port_feature(dev, port + 1, USB_PORT_FEAT_C_RESET);
*portstat = portstatus;
return 0;
-
}
@@ -1017,22 +1101,24 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port)
unsigned short portstatus, portchange;
/* Check status */
- if (usb_get_port_status(dev, port + 1, &portsts)<0) {
+ if (usb_get_port_status(dev, port + 1, &portsts) < 0) {
USB_HUB_PRINTF("get_port_status failed\n");
return;
}
portstatus = le16_to_cpu(portsts.wPortStatus);
portchange = le16_to_cpu(portsts.wPortChange);
- USB_HUB_PRINTF("portstatus %x, change %x, %s\n", portstatus, portchange,
- portstatus&(1<<USB_PORT_FEAT_LOWSPEED) ? "Low Speed" : "High Speed");
+ USB_HUB_PRINTF("portstatus %x, change %x, %s\n",
+ portstatus, portchange,
+ portstatus&(1 << USB_PORT_FEAT_LOWSPEED) ? \
+ "Low Speed" : "High Speed");
/* Clear the connection change status */
usb_clear_port_feature(dev, port + 1, USB_PORT_FEAT_C_CONNECTION);
/* Disconnect any existing devices under this port */
if (((!(portstatus & USB_PORT_STAT_CONNECTION)) &&
- (!(portstatus & USB_PORT_STAT_ENABLE)))|| (dev->children[port])) {
+ (!(portstatus & USB_PORT_STAT_ENABLE))) || (dev->children[port])) {
USB_HUB_PRINTF("usb_disconnect(&hub->children[port]);\n");
/* Return now if nothing is connected */
if (!(portstatus & USB_PORT_STAT_CONNECTION))
@@ -1049,11 +1135,11 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port)
wait_ms(200);
/* Allocate a new device struct for it */
- usb=usb_alloc_new_device();
+ usb = usb_alloc_new_device();
usb->slow = (portstatus & USB_PORT_STAT_LOW_SPEED) ? 1 : 0;
dev->children[port] = usb;
- usb->parent=dev;
+ usb->parent = dev;
/* Run it through the hoops (find a driver, etc) */
if (usb_new_device(usb)) {
/* Woops, disable the port */
@@ -1072,13 +1158,14 @@ int usb_hub_configure(struct usb_device *dev)
struct usb_hub_device *hub;
/* "allocate" Hub device */
- hub=usb_hub_allocate();
- if(hub==NULL)
+ hub = usb_hub_allocate();
+ if (hub == NULL)
return -1;
- hub->pusb_dev=dev;
+ hub->pusb_dev = dev;
/* Get the the hub descriptor */
if (usb_get_hub_descriptor(dev, buffer, 4) < 0) {
- USB_HUB_PRINTF("usb_hub_configure: failed to get hub descriptor, giving up %lX\n",dev->status);
+ USB_HUB_PRINTF("usb_hub_configure: failed to get hub " \
+ "descriptor, giving up %lX\n", dev->status);
return -1;
}
descriptor = (struct usb_hub_descriptor *)buffer;
@@ -1086,43 +1173,48 @@ int usb_hub_configure(struct usb_device *dev)
/* silence compiler warning if USB_BUFSIZ is > 256 [= sizeof(char)] */
i = descriptor->bLength;
if (i > USB_BUFSIZ) {
- USB_HUB_PRINTF("usb_hub_configure: failed to get hub descriptor - too long: %d\n",
- descriptor->bLength);
+ USB_HUB_PRINTF("usb_hub_configure: failed to get hub " \
+ "descriptor - too long: %d\n",
+ descriptor->bLength);
return -1;
}
if (usb_get_hub_descriptor(dev, buffer, descriptor->bLength) < 0) {
- USB_HUB_PRINTF("usb_hub_configure: failed to get hub descriptor 2nd giving up %lX\n",dev->status);
+ USB_HUB_PRINTF("usb_hub_configure: failed to get hub " \
+ "descriptor 2nd giving up %lX\n", dev->status);
return -1;
}
- memcpy((unsigned char *)&hub->desc,buffer,descriptor->bLength);
+ memcpy((unsigned char *)&hub->desc, buffer, descriptor->bLength);
/* adjust 16bit values */
- hub->desc.wHubCharacteristics = le16_to_cpu(descriptor->wHubCharacteristics);
+ hub->desc.wHubCharacteristics =
+ le16_to_cpu(descriptor->wHubCharacteristics);
/* set the bitmap */
- bitmap=(unsigned char *)&hub->desc.DeviceRemovable[0];
- memset(bitmap,0xff,(USB_MAXCHILDREN+1+7)/8); /* devices not removable by default */
- bitmap=(unsigned char *)&hub->desc.PortPowerCtrlMask[0];
- memset(bitmap,0xff,(USB_MAXCHILDREN+1+7)/8); /* PowerMask = 1B */
- for(i=0;i<((hub->desc.bNbrPorts + 1 + 7)/8);i++) {
- hub->desc.DeviceRemovable[i]=descriptor->DeviceRemovable[i];
- }
- for(i=0;i<((hub->desc.bNbrPorts + 1 + 7)/8);i++) {
- hub->desc.DeviceRemovable[i]=descriptor->PortPowerCtrlMask[i];
- }
+ bitmap = (unsigned char *)&hub->desc.DeviceRemovable[0];
+ /* devices not removable by default */
+ memset(bitmap, 0xff, (USB_MAXCHILDREN+1+7)/8);
+ bitmap = (unsigned char *)&hub->desc.PortPowerCtrlMask[0];
+ memset(bitmap, 0xff, (USB_MAXCHILDREN+1+7)/8); /* PowerMask = 1B */
+
+ for (i = 0; i < ((hub->desc.bNbrPorts + 1 + 7)/8); i++)
+ hub->desc.DeviceRemovable[i] = descriptor->DeviceRemovable[i];
+
+ for (i = 0; i < ((hub->desc.bNbrPorts + 1 + 7)/8); i++)
+ hub->desc.DeviceRemovable[i] = descriptor->PortPowerCtrlMask[i];
+
dev->maxchild = descriptor->bNbrPorts;
USB_HUB_PRINTF("%d ports detected\n", dev->maxchild);
switch (hub->desc.wHubCharacteristics & HUB_CHAR_LPSM) {
- case 0x00:
- USB_HUB_PRINTF("ganged power switching\n");
- break;
- case 0x01:
- USB_HUB_PRINTF("individual port power switching\n");
- break;
- case 0x02:
- case 0x03:
- USB_HUB_PRINTF("unknown reserved power switching mode\n");
- break;
+ case 0x00:
+ USB_HUB_PRINTF("ganged power switching\n");
+ break;
+ case 0x01:
+ USB_HUB_PRINTF("individual port power switching\n");
+ break;
+ case 0x02:
+ case 0x03:
+ USB_HUB_PRINTF("unknown reserved power switching mode\n");
+ break;
}
if (hub->desc.wHubCharacteristics & HUB_CHAR_COMPOUND)
@@ -1131,40 +1223,52 @@ int usb_hub_configure(struct usb_device *dev)
USB_HUB_PRINTF("standalone hub\n");
switch (hub->desc.wHubCharacteristics & HUB_CHAR_OCPM) {
- case 0x00:
- USB_HUB_PRINTF("global over-current protection\n");
- break;
- case 0x08:
- USB_HUB_PRINTF("individual port over-current protection\n");
- break;
- case 0x10:
- case 0x18:
- USB_HUB_PRINTF("no over-current protection\n");
- break;
+ case 0x00:
+ USB_HUB_PRINTF("global over-current protection\n");
+ break;
+ case 0x08:
+ USB_HUB_PRINTF("individual port over-current protection\n");
+ break;
+ case 0x10:
+ case 0x18:
+ USB_HUB_PRINTF("no over-current protection\n");
+ break;
}
- USB_HUB_PRINTF("power on to power good time: %dms\n", descriptor->bPwrOn2PwrGood * 2);
- USB_HUB_PRINTF("hub controller current requirement: %dmA\n", descriptor->bHubContrCurrent);
+
+ USB_HUB_PRINTF("power on to power good time: %dms\n",
+ descriptor->bPwrOn2PwrGood * 2);
+ USB_HUB_PRINTF("hub controller current requirement: %dmA\n",
+ descriptor->bHubContrCurrent);
+
for (i = 0; i < dev->maxchild; i++)
USB_HUB_PRINTF("port %d is%s removable\n", i + 1,
- hub->desc.DeviceRemovable[(i + 1)/8] & (1 << ((i + 1)%8)) ? " not" : "");
+ hub->desc.DeviceRemovable[(i + 1) / 8] & \
+ (1 << ((i + 1) % 8)) ? " not" : "");
+
if (sizeof(struct usb_hub_status) > USB_BUFSIZ) {
- USB_HUB_PRINTF("usb_hub_configure: failed to get Status - too long: %d\n",
- descriptor->bLength);
+ USB_HUB_PRINTF("usb_hub_configure: failed to get Status - " \
+ "too long: %d\n", descriptor->bLength);
return -1;
}
if (usb_get_hub_status(dev, buffer) < 0) {
- USB_HUB_PRINTF("usb_hub_configure: failed to get Status %lX\n",dev->status);
+ USB_HUB_PRINTF("usb_hub_configure: failed to get Status %lX\n",
+ dev->status);
return -1;
}
+
hubsts = (struct usb_hub_status *)buffer;
USB_HUB_PRINTF("get_hub_status returned status %X, change %X\n",
- le16_to_cpu(hubsts->wHubStatus),le16_to_cpu(hubsts->wHubChange));
+ le16_to_cpu(hubsts->wHubStatus),
+ le16_to_cpu(hubsts->wHubChange));
USB_HUB_PRINTF("local power source is %s\n",
- (le16_to_cpu(hubsts->wHubStatus) & HUB_STATUS_LOCAL_POWER) ? "lost (inactive)" : "good");
+ (le16_to_cpu(hubsts->wHubStatus) & HUB_STATUS_LOCAL_POWER) ? \
+ "lost (inactive)" : "good");
USB_HUB_PRINTF("%sover-current condition exists\n",
- (le16_to_cpu(hubsts->wHubStatus) & HUB_STATUS_OVERCURRENT) ? "" : "no ");
+ (le16_to_cpu(hubsts->wHubStatus) & HUB_STATUS_OVERCURRENT) ? \
+ "" : "no ");
usb_hub_power_on(hub);
+
for (i = 0; i < dev->maxchild; i++) {
struct usb_port_status portsts;
unsigned short portstatus, portchange;
@@ -1173,41 +1277,51 @@ int usb_hub_configure(struct usb_device *dev)
USB_HUB_PRINTF("get_port_status failed\n");
continue;
}
+
portstatus = le16_to_cpu(portsts.wPortStatus);
portchange = le16_to_cpu(portsts.wPortChange);
- USB_HUB_PRINTF("Port %d Status %X Change %X\n",i+1,portstatus,portchange);
+ USB_HUB_PRINTF("Port %d Status %X Change %X\n",
+ i + 1, portstatus, portchange);
+
if (portchange & USB_PORT_STAT_C_CONNECTION) {
USB_HUB_PRINTF("port %d connection change\n", i + 1);
usb_hub_port_connect_change(dev, i);
}
if (portchange & USB_PORT_STAT_C_ENABLE) {
- USB_HUB_PRINTF("port %d enable change, status %x\n", i + 1, portstatus);
- usb_clear_port_feature(dev, i + 1, USB_PORT_FEAT_C_ENABLE);
-
- /* EM interference sometimes causes bad shielded USB devices to
- * be shutdown by the hub, this hack enables them again.
- * Works at least with mouse driver */
+ USB_HUB_PRINTF("port %d enable change, status %x\n",
+ i + 1, portstatus);
+ usb_clear_port_feature(dev, i + 1,
+ USB_PORT_FEAT_C_ENABLE);
+
+ /* EM interference sometimes causes bad shielded USB
+ * devices to be shutdown by the hub, this hack enables
+ * them again. Works at least with mouse driver */
if (!(portstatus & USB_PORT_STAT_ENABLE) &&
- (portstatus & USB_PORT_STAT_CONNECTION) && (dev->children[i])) {
- USB_HUB_PRINTF("already running port %i disabled by hub (EMI?), re-enabling...\n",
- i + 1);
+ (portstatus & USB_PORT_STAT_CONNECTION) &&
+ ((dev->children[i]))) {
+ USB_HUB_PRINTF("already running port %i " \
+ "disabled by hub (EMI?), " \
+ "re-enabling...\n", i + 1);
usb_hub_port_connect_change(dev, i);
}
}
if (portstatus & USB_PORT_STAT_SUSPEND) {
USB_HUB_PRINTF("port %d suspend change\n", i + 1);
- usb_clear_port_feature(dev, i + 1, USB_PORT_FEAT_SUSPEND);
+ usb_clear_port_feature(dev, i + 1,
+ USB_PORT_FEAT_SUSPEND);
}
if (portchange & USB_PORT_STAT_C_OVERCURRENT) {
USB_HUB_PRINTF("port %d over-current change\n", i + 1);
- usb_clear_port_feature(dev, i + 1, USB_PORT_FEAT_C_OVER_CURRENT);
+ usb_clear_port_feature(dev, i + 1,
+ USB_PORT_FEAT_C_OVER_CURRENT);
usb_hub_power_on(hub);
}
if (portchange & USB_PORT_STAT_C_RESET) {
USB_HUB_PRINTF("port %d reset change\n", i + 1);
- usb_clear_port_feature(dev, i + 1, USB_PORT_FEAT_C_RESET);
+ usb_clear_port_feature(dev, i + 1,
+ USB_PORT_FEAT_C_RESET);
}
} /* end for i all ports */
@@ -1241,7 +1355,7 @@ int usb_hub_probe(struct usb_device *dev, int ifnum)
return 0;
/* We found a hub */
USB_HUB_PRINTF("USB hub found\n");
- ret=usb_hub_configure(dev);
+ ret = usb_hub_configure(dev);
return ret;
}
generated by cgit v1.1 at 2024-11-26 12:08:41 +0000