#include <command.h>
#include <asm/processor.h>
#include <linux/ctype.h>
-
-#if (CONFIG_COMMANDS & CFG_CMD_USB)
+#include <asm/byteorder.h>
#include <usb.h>
#ifdef CONFIG_4xx
-#include <405gp_pci.h>
+#include <asm/4xx_pci.h>
#endif
#undef USB_DEBUG
static int asynch_allowed;
static struct devrequest setup_packet;
+char usb_started; /* flag for the started/stopped USB status */
+
/**********************************************************************
* some forward declerations...
*/
printf("scanning bus for devices... ");
running=1;
usb_scan_devices();
+ usb_started = 1;
return 0;
}
else {
printf("Error, couldn't init Lowlevel part\n");
+ usb_started = 0;
return -1;
}
}
*/
int usb_stop(void)
{
- asynch_allowed=1;
- 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;
}
/*
/* set setup command */
setup_packet.requesttype = requesttype;
setup_packet.request = request;
- setup_packet.value = swap_16(value);
- setup_packet.index = swap_16(index);
- setup_packet.length = swap_16(size);
- USB_PRINTF("usb_control_msg: request: 0x%X, requesttype: 0x%X\nvalue 0x%X index 0x%X length 0x%X\n",
+ 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 */
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 */
+}
+
/*
* set the max packed value of all endpoints in the given configuration
*/
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;
}
int usb_parse_config(struct usb_device *dev, unsigned char *buffer, int cfgno)
{
struct usb_descriptor_header *head;
- int index,ifno,epno;
- ifno=-1;
- epno=-1;
-
- 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);
+ int index, ifno, epno, curr_if_num;
+ int i;
+ unsigned char *ch;
+
+ ifno = -1;
+ epno = -1;
+ curr_if_num = -1;
+
+ 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);
return -1;
}
- memcpy(&dev->config,buffer,buffer[0]);
- dev->config.wTotalLength=swap_16(dev->config.wTotalLength);
- dev->config.no_of_if=0;
+ memcpy(&dev->config, buffer, buffer[0]);
+ le16_to_cpus(&(dev->config.wTotalLength));
+ dev->config.no_of_if = 0;
- index=dev->config.bLength;
+ index = dev->config.bLength;
/* 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) {
+ head = (struct usb_descriptor_header *) &buffer[index];
+ while(index + 1 < dev->config.wTotalLength) {
switch(head->bDescriptorType) {
case USB_DT_INTERFACE:
- ifno=dev->config.no_of_if;
- dev->config.no_of_if++; /* found an interface desc, increase numbers */
- memcpy(&dev->config.if_desc[ifno],&buffer[index],buffer[index]); /* copy new desc */
- dev->config.if_desc[ifno].no_of_ep=0;
-
+ 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;
+ 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],&buffer[index],buffer[index]);
- dev->config.if_desc[ifno].ep_desc[epno].wMaxPacketSize
- =swap_16(dev->config.if_desc[ifno].ep_desc[epno].wMaxPacketSize);
- USB_PRINTF("if %d, ep %d\n",ifno,epno);
+ 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)
+ if(head->bLength == 0)
return 1;
- USB_PRINTF("unknown Description Type : %x\n",head->bDescriptorType);
+ USB_PRINTF("unknown Description Type : %x\n", head->bDescriptorType);
{
- int i;
- unsigned char *ch;
- ch=(unsigned char *)head;
- for(i=0;i<head->bLength; i++)
- USB_PRINTF("%02X ",*ch++);
+ 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];
+ index += head->bLength;
+ head = (struct usb_descriptor_header *)&buffer[index];
}
return 1;
}
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),
+ res = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
(type << 8) + index, 0,
buf, size, USB_CNTL_TIMEOUT);
*/
int usb_get_configuration_no(struct usb_device *dev,unsigned char *buffer,int cfgno)
{
- int result;
+ int result;
unsigned int tmp;
struct usb_config_descriptor *config;
printf("config descriptor too short (expected %i, got %i)\n",8,result);
return -1;
}
- tmp=swap_16(config->wTotalLength);
+ tmp = le16_to_cpu(config->wTotalLength);
if (tmp > USB_BUFSIZ) {
USB_PRINTF("usb_get_configuration_no: failed to get descriptor - too long: %d\n",
printf("selecting invalid interface %d", interface);
return -1;
}
+ /*
+ * 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.
+ */
+ 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,
if (size <= 0 || !buf || !index)
return -1;
buf[0] = 0;
- tbuf=&mybuf[0];
+ tbuf = &mybuf[0];
/* get langid for strings if it's not yet known */
if (!dev->have_langid) {
return 1;
}
/* correct le values */
- dev->descriptor.bcdUSB=swap_16(dev->descriptor.bcdUSB);
- dev->descriptor.idVendor=swap_16(dev->descriptor.idVendor);
- dev->descriptor.idProduct=swap_16(dev->descriptor.idProduct);
- dev->descriptor.bcdDevice=swap_16(dev->descriptor.bcdDevice);
+ le16_to_cpus(&dev->descriptor.bcdUSB);
+ le16_to_cpus(&dev->descriptor.idVendor);
+ 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);
/* first make all devices unknown */
for(i=0;i<USB_MAX_DEVICE;i++) {
memset(&usb_dev[i],0,sizeof(struct usb_device));
- usb_dev[i].devnum=-1;
+ usb_dev[i].devnum = -1;
}
dev_index=0;
/* device 0 is always present (root hub, so let it analyze) */
USB_HUB_PRINTF("get_port_status failed status %lX\n",dev->status);
return -1;
}
- portstatus = swap_16(portsts.wPortStatus);
- portchange = swap_16(portsts.wPortChange);
+ 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",
return;
}
- portstatus = swap_16(portsts.wPortStatus);
- portchange = swap_16(portsts.wPortChange);
+ 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");
/* 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",
+ USB_HUB_PRINTF("usb_hub_configure: failed to get hub descriptor - too long: %d\n",
descriptor->bLength);
return -1;
}
}
memcpy((unsigned char *)&hub->desc,buffer,descriptor->bLength);
/* adjust 16bit values */
- hub->desc.wHubCharacteristics=swap_16(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 */
}
hubsts = (struct usb_hub_status *)buffer;
USB_HUB_PRINTF("get_hub_status returned status %X, change %X\n",
- swap_16(hubsts->wHubStatus),swap_16(hubsts->wHubChange));
+ le16_to_cpu(hubsts->wHubStatus),le16_to_cpu(hubsts->wHubChange));
USB_HUB_PRINTF("local power source is %s\n",
- (swap_16(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",
- (swap_16(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;
USB_HUB_PRINTF("get_port_status failed\n");
continue;
}
- portstatus = swap_16(portsts.wPortStatus);
- portchange = swap_16(portsts.wPortChange);
+ 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);
if (portchange & USB_PORT_STAT_C_CONNECTION) {
USB_HUB_PRINTF("port %d connection change\n", i + 1);
return ret;
}
-#endif /* (CONFIG_COMMANDS & CFG_CMD_USB) */
-
/* EOF */
projects / platform / kernel / u-boot.git / blobdiff