diff options
| -rw-r--r-- | common/usb.c | 542 | ||||
| -rw-r--r-- | drivers/usb/usb_ohci.c | 972 | ||||
| -rw-r--r-- | drivers/usb/usb_ohci.h | 35 |
3 files changed, 862 insertions, 687 deletions
diff --git a/common/usb.c b/common/usb.c index 4d64ccb..be81aaf 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 @@ -88,7 +88,7 @@ void usb_hub_reset(void); void __inline__ wait_ms(unsigned long ms) { - while(ms-->0) + while (ms-- > 0) udelay(1000); } /*************************************************************************** @@ -99,22 +99,22 @@ 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; @@ -143,7 +143,7 @@ int usb_stop(void) */ void usb_disable_asynch(int disable) { - asynch_allowed=!disable; + asynch_allowed = !disable; } @@ -156,9 +156,9 @@ 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); } /* @@ -175,8 +175,10 @@ 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; @@ -184,24 +186,24 @@ 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)) + + while (timeout--) { + if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) break; wait_ms(1); } - if(dev->status==0) + if (dev->status == 0) return dev->act_len; - else { + else return -1; - } } /*------------------------------------------------------------------- @@ -214,15 +216,15 @@ 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; @@ -237,9 +239,10 @@ 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 */ + /* 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)]); @@ -318,8 +321,9 @@ 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]); @@ -327,45 +331,52 @@ 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]; @@ -384,7 +395,8 @@ 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) @@ -406,7 +418,8 @@ 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), @@ -419,32 +432,36 @@ 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]; + config = (struct usb_config_descriptor *)&buffer[0]; result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 8); if (result < 8) { 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", 8, 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; } @@ -456,11 +473,11 @@ 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; } @@ -484,16 +501,19 @@ 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; @@ -505,18 +525,17 @@ 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; } @@ -543,11 +562,13 @@ 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); } /******************************************************************** @@ -564,7 +585,8 @@ 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; @@ -655,17 +677,19 @@ 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); } } @@ -697,9 +721,9 @@ 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]; @@ -709,21 +733,22 @@ 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]; } @@ -788,7 +813,7 @@ 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; } @@ -803,7 +828,8 @@ int usb_new_device(struct usb_device *dev) /* 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); + printf("\n USB device not responding, " \ + "giving up (status=%lX)\n", dev->status); return 1; } #endif @@ -811,17 +837,18 @@ int usb_new_device(struct usb_device *dev) 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 = 0; break; + case 16: dev->maxpacketsize = 1; break; + case 32: dev->maxpacketsize = 2; break; + case 64: dev->maxpacketsize = 3; 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; } @@ -829,12 +856,15 @@ 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 */ @@ -843,30 +873,35 @@ 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; } @@ -877,15 +912,15 @@ 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(); @@ -902,9 +937,9 @@ 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 @@ -922,19 +957,22 @@ 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) @@ -957,27 +995,27 @@ 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; } @@ -990,39 +1028,42 @@ 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; } @@ -1030,7 +1071,6 @@ 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; - } @@ -1041,22 +1081,24 @@ 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)) @@ -1073,11 +1115,11 @@ 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 */ @@ -1096,13 +1138,14 @@ 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; @@ -1110,43 +1153,48 @@ 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) @@ -1155,40 +1203,52 @@ 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; @@ -1197,41 +1257,51 @@ 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 */ @@ -1265,7 +1335,7 @@ 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; } diff --git a/drivers/usb/usb_ohci.c b/drivers/usb/usb_ohci.c index da11ecb..76c6390 100644 --- a/drivers/usb/usb_ohci.c +++ b/drivers/usb/usb_ohci.c @@ -97,7 +97,8 @@ # define writel(a, b) (*((volatile u32 *)(b)) = ((volatile u32)a)) #endif /* CFG_OHCI_SWAP_REG_ACCESS */ -#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) +#define min_t(type, x, y) \ + ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) #ifdef CONFIG_PCI_OHCI static struct pci_device_id ohci_pci_ids[] = { @@ -120,13 +121,13 @@ static struct pci_device_id ehci_pci_ids[] = { #ifdef DEBUG #define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg) #else -#define dbg(format, arg...) do {} while(0) +#define dbg(format, arg...) do {} while (0) #endif /* DEBUG */ #define err(format, arg...) printf("ERROR: " format "\n", ## arg) #ifdef SHOW_INFO #define info(format, arg...) printf("INFO: " format "\n", ## arg) #else -#define info(format, arg...) do {} while(0) +#define info(format, arg...) do {} while (0) #endif #ifdef CFG_OHCI_BE_CONTROLLER @@ -145,25 +146,24 @@ struct ohci_hcca ghcca[1]; struct ohci_hcca *phcca; /* this allocates EDs for all possible endpoints */ struct ohci_device ohci_dev; -/* RHSC flag */ -int got_rhsc; /* device which was disconnected */ struct usb_device *devgone; -static inline u32 roothub_a (struct ohci *hc) - { return readl (&hc->regs->roothub.a); } -static inline u32 roothub_b (struct ohci *hc) - { return readl (&hc->regs->roothub.b); } -static inline u32 roothub_status (struct ohci *hc) - { return readl (&hc->regs->roothub.status); } -static inline u32 roothub_portstatus (struct ohci *hc, int i) - { return readl (&hc->regs->roothub.portstatus[i]); } +static inline u32 roothub_a(struct ohci *hc) + { return readl(&hc->regs->roothub.a); } +static inline u32 roothub_b(struct ohci *hc) + { return readl(&hc->regs->roothub.b); } +static inline u32 roothub_status(struct ohci *hc) + { return readl(&hc->regs->roothub.status); } +static inline u32 roothub_portstatus(struct ohci *hc, int i) + { return readl(&hc->regs->roothub.portstatus[i]); } /* forward declaration */ -static int hc_interrupt (void); -static void -td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer, - int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval); +static int hc_interrupt(void); +static void td_submit_job(struct usb_device *dev, unsigned long pipe, + void *buffer, int transfer_len, + struct devrequest *setup, urb_priv_t *urb, + int interval); /*-------------------------------------------------------------------------* * URB support functions @@ -171,11 +171,11 @@ td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer, /* free HCD-private data associated with this URB */ -static void urb_free_priv (urb_priv_t * urb) +static void urb_free_priv(urb_priv_t *urb) { int i; int last; - struct td * td; + struct td *td; last = urb->length - 1; if (last >= 0) { @@ -193,72 +193,74 @@ static void urb_free_priv (urb_priv_t * urb) /*-------------------------------------------------------------------------*/ #ifdef DEBUG -static int sohci_get_current_frame_number (struct usb_device * dev); +static int sohci_get_current_frame_number(struct usb_device *dev); /* debug| print the main components of an URB * small: 0) header + data packets 1) just header */ -static void pkt_print (urb_priv_t *purb, struct usb_device * dev, - unsigned long pipe, void * buffer, - int transfer_len, struct devrequest * setup, char * str, int small) +static void pkt_print(urb_priv_t *purb, struct usb_device *dev, + unsigned long pipe, void *buffer, int transfer_len, + struct devrequest *setup, char *str, int small) { - dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx", + dbg("%s URB:[%4x] dev:%2lu,ep:%2lu-%c,type:%s,len:%d/%d stat:%#lx", str, - sohci_get_current_frame_number (dev), - usb_pipedevice (pipe), - usb_pipeendpoint (pipe), - usb_pipeout (pipe)? 'O': 'I', - usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"): - (usb_pipecontrol (pipe)? "CTRL": "BULK"), + sohci_get_current_frame_number(dev), + usb_pipedevice(pipe), + usb_pipeendpoint(pipe), + usb_pipeout(pipe)? 'O': 'I', + usb_pipetype(pipe) < 2 ? \ + (usb_pipeint(pipe)? "INTR": "ISOC"): \ + (usb_pipecontrol(pipe)? "CTRL": "BULK"), (purb ? purb->actual_length : 0), transfer_len, dev->status); #ifdef OHCI_VERBOSE_DEBUG if (!small) { int i, len; - if (usb_pipecontrol (pipe)) { - printf (__FILE__ ": cmd(8):"); + if (usb_pipecontrol(pipe)) { + printf(__FILE__ ": cmd(8):"); for (i = 0; i < 8 ; i++) - printf (" %02x", ((__u8 *) setup) [i]); - printf ("\n"); + printf(" %02x", ((__u8 *) setup) [i]); + printf("\n"); } if (transfer_len > 0 && buffer) { - printf (__FILE__ ": data(%d/%d):", + printf(__FILE__ ": data(%d/%d):", (purb ? purb->actual_length : 0), transfer_len); - len = usb_pipeout (pipe)? - transfer_len: + len = usb_pipeout(pipe)? transfer_len: (purb ? purb->actual_length : 0); for (i = 0; i < 16 && i < len; i++) - printf (" %02x", ((__u8 *) buffer) [i]); - printf ("%s\n", i < len? "...": ""); + printf(" %02x", ((__u8 *) buffer) [i]); + printf("%s\n", i < len? "...": ""); } } #endif } -/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/ -void ep_print_int_eds (ohci_t *ohci, char * str) { +/* just for debugging; prints non-empty branches of the int ed tree + * inclusive iso eds */ +void ep_print_int_eds(ohci_t *ohci, char *str) +{ int i, j; - __u32 * ed_p; - for (i= 0; i < 32; i++) { + __u32 *ed_p; + for (i = 0; i < 32; i++) { j = 5; ed_p = &(ohci->hcca->int_table [i]); if (*ed_p == 0) continue; - printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i); + printf(__FILE__ ": %s branch int %2d(%2x):", str, i, i); while (*ed_p != 0 && j--) { ed_t *ed = (ed_t *)m32_swap(ed_p); - printf (" ed: %4x;", ed->hwINFO); + printf(" ed: %4x;", ed->hwINFO); ed_p = &ed->hwNextED; } - printf ("\n"); + printf("\n"); } } -static void ohci_dump_intr_mask (char *label, __u32 mask) +static void ohci_dump_intr_mask(char *label, __u32 mask) { - dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s", + dbg("%s: 0x%08x%s%s%s%s%s%s%s%s%s", label, mask, (mask & OHCI_INTR_MIE) ? " MIE" : "", @@ -273,46 +275,46 @@ static void ohci_dump_intr_mask (char *label, __u32 mask) ); } -static void maybe_print_eds (char *label, __u32 value) +static void maybe_print_eds(char *label, __u32 value) { ed_t *edp = (ed_t *)value; if (value) { - dbg ("%s %08x", label, value); - dbg ("%08x", edp->hwINFO); - dbg ("%08x", edp->hwTailP); - dbg ("%08x", edp->hwHeadP); - dbg ("%08x", edp->hwNextED); + dbg("%s %08x", label, value); + dbg("%08x", edp->hwINFO); + dbg("%08x", edp->hwTailP); + dbg("%08x", edp->hwHeadP); + dbg("%08x", edp->hwNextED); } } -static char * hcfs2string (int state) +static char *hcfs2string(int state) { switch (state) { - case OHCI_USB_RESET: return "reset"; - case OHCI_USB_RESUME: return "resume"; - case OHCI_USB_OPER: return "operational"; - case OHCI_USB_SUSPEND: return "suspend"; + case OHCI_USB_RESET: return "reset"; + case OHCI_USB_RESUME: return "resume"; + case OHCI_USB_OPER: return "operational"; + case OHCI_USB_SUSPEND: return "suspend"; } return "?"; } /* dump control and status registers */ -static void ohci_dump_status (ohci_t *controller) +static void ohci_dump_status(ohci_t *controller) { struct ohci_regs *regs = controller->regs; __u32 temp; - temp = readl (®s->revision) & 0xff; + temp = readl(®s->revision) & 0xff; if (temp != 0x10) - dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f)); + dbg("spec %d.%d", (temp >> 4), (temp & 0x0f)); - temp = readl (®s->control); - dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, + temp = readl(®s->control); + dbg("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, (temp & OHCI_CTRL_RWE) ? " RWE" : "", (temp & OHCI_CTRL_RWC) ? " RWC" : "", (temp & OHCI_CTRL_IR) ? " IR" : "", - hcfs2string (temp & OHCI_CTRL_HCFS), + hcfs2string(temp & OHCI_CTRL_HCFS), (temp & OHCI_CTRL_BLE) ? " BLE" : "", (temp & OHCI_CTRL_CLE) ? " CLE" : "", (temp & OHCI_CTRL_IE) ? " IE" : "", @@ -320,8 +322,8 @@ static void ohci_dump_status (ohci_t *controller) temp & OHCI_CTRL_CBSR ); - temp = readl (®s->cmdstatus); - dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, + temp = readl(®s->cmdstatus); + dbg("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, (temp & OHCI_SOC) >> 16, (temp & OHCI_OCR) ? " OCR" : "", (temp & OHCI_BLF) ? " BLF" : "", @@ -329,31 +331,31 @@ static void ohci_dump_status (ohci_t *controller) (temp & OHCI_HCR) ? " HCR" : "" ); - ohci_dump_intr_mask ("intrstatus", readl (®s->intrstatus)); - ohci_dump_intr_mask ("intrenable", readl (®s->intrenable)); + ohci_dump_intr_mask("intrstatus", readl(®s->intrstatus)); + ohci_dump_intr_mask("intrenable", readl(®s->intrenable)); - maybe_print_eds ("ed_periodcurrent", readl (®s->ed_periodcurrent)); + maybe_print_eds("ed_periodcurrent", readl(®s->ed_periodcurrent)); - maybe_print_eds ("ed_controlhead", readl (®s->ed_controlhead)); - maybe_print_eds ("ed_controlcurrent", readl (®s->ed_controlcurrent)); + maybe_print_eds("ed_controlhead", readl(®s->ed_controlhead)); + maybe_print_eds("ed_controlcurrent", readl(®s->ed_controlcurrent)); - maybe_print_eds ("ed_bulkhead", readl (®s->ed_bulkhead)); - maybe_print_eds ("ed_bulkcurrent", readl (®s->ed_bulkcurrent)); + maybe_print_eds("ed_bulkhead", readl(®s->ed_bulkhead)); + maybe_print_eds("ed_bulkcurrent", readl(®s->ed_bulkcurrent)); - maybe_print_eds ("donehead", readl (®s->donehead)); + maybe_print_eds("donehead", readl(®s->donehead)); } -static void ohci_dump_roothub (ohci_t *controller, int verbose) +static void ohci_dump_roothub(ohci_t *controller, int verbose) { __u32 temp, ndp, i; - temp = roothub_a (controller); + temp = roothub_a(controller); ndp = (temp & RH_A_NDP); #ifdef CONFIG_AT91C_PQFP_UHPBUG ndp = (ndp == 2) ? 1:0; #endif if (verbose) { - dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, + dbg("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, ((temp & RH_A_POTPGT) >> 24) & 0xff, (temp & RH_A_NOCP) ? " NOCP" : "", (temp & RH_A_OCPM) ? " OCPM" : "", @@ -362,14 +364,14 @@ static void ohci_dump_roothub (ohci_t *controller, int verbose) (temp & RH_A_PSM) ? " PSM" : "", ndp ); - temp = roothub_b (controller); - dbg ("roothub.b: %08x PPCM=%04x DR=%04x", + temp = roothub_b(controller); + dbg("roothub.b: %08x PPCM=%04x DR=%04x", temp, (temp & RH_B_PPCM) >> 16, (temp & RH_B_DR) ); - temp = roothub_status (controller); - dbg ("roothub.status: %08x%s%s%s%s%s%s", + temp = roothub_status(controller); + dbg("roothub.status: %08x%s%s%s%s%s%s", temp, (temp & RH_HS_CRWE) ? " CRWE" : "", (temp & RH_HS_OCIC) ? " OCIC" : "", @@ -381,8 +383,8 @@ static void ohci_dump_roothub (ohci_t *controller, int verbose) } for (i = 0; i < ndp; i++) { - temp = roothub_portstatus (controller, i); - dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", + temp = roothub_portstatus(controller, i); + dbg("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", i, temp, (temp & RH_PS_PRSC) ? " PRSC" : "", @@ -403,16 +405,16 @@ static void ohci_dump_roothub (ohci_t *controller, int verbose) } } -static void ohci_dump (ohci_t *controller, int verbose) +static void ohci_dump(ohci_t *controller, int verbose) { - dbg ("OHCI controller usb-%s state", controller->slot_name); + dbg("OHCI controller usb-%s state", controller->slot_name); /* dumps some of the state we know about */ - ohci_dump_status (controller); + ohci_dump_status(controller); if (verbose) - ep_print_int_eds (controller, "hcca"); - dbg ("hcca frame #%04x", controller->hcca->frame_no); - ohci_dump_roothub (controller, 1); + ep_print_int_eds(controller, "hcca"); + dbg("hcca frame #%04x", controller->hcca->frame_no); + ohci_dump_roothub(controller, 1); } #endif /* DEBUG */ @@ -425,7 +427,7 @@ static void ohci_dump (ohci_t *controller, int verbose) int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup) { ohci_t *ohci; - ed_t * ed; + ed_t *ed; urb_priv_t *purb_priv = urb; int i, size = 0; struct usb_device *dev = urb->dev; @@ -443,27 +445,29 @@ int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup) return -1; } - /* we're about to begin a new transaction here so mark the URB unfinished */ + /* we're about to begin a new transaction here so mark the + * URB unfinished */ urb->finished = 0; /* every endpoint has a ed, locate and fill it */ - if (!(ed = ep_add_ed (dev, pipe, interval, 1))) { + ed = ep_add_ed(dev, pipe, interval, 1); + if (!ed) { err("sohci_submit_job: ENOMEM"); return -1; } /* for the private part of the URB we need the number of TDs (size) */ - switch (usb_pipetype (pipe)) { - case PIPE_BULK: /* one TD for every 4096 Byte */ - size = (transfer_len - 1) / 4096 + 1; - break; - case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ - size = (transfer_len == 0)? 2: - (transfer_len - 1) / 4096 + 3; - break; - case PIPE_INTERRUPT: /* 1 TD */ - size = 1; - break; + switch (usb_pipetype(pipe)) { + case PIPE_BULK: /* one TD for every 4096 Byte */ + size = (transfer_len - 1) / 4096 + 1; + break; + case PIPE_CONTROL:/* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ + size = (transfer_len == 0)? 2: + (transfer_len - 1) / 4096 + 3; + break; + case PIPE_INTERRUPT: /* 1 TD */ + size = 1; + break; } ed->purb = urb; @@ -482,27 +486,28 @@ int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup) /* allocate the TDs */ /* note that td[0] was allocated in ep_add_ed */ for (i = 0; i < size; i++) { - purb_priv->td[i] = td_alloc (dev); + purb_priv->td[i] = td_alloc(dev); if (!purb_priv->td[i]) { purb_priv->length = i; - urb_free_priv (purb_priv); + urb_free_priv(purb_priv); err("sohci_submit_job: ENOMEM"); return -1; } } if (ed->state == ED_NEW || (ed->state & ED_DEL)) { - urb_free_priv (purb_priv); + urb_free_priv(purb_priv); err("sohci_submit_job: EINVAL"); return -1; } /* link the ed into a chain if is not already */ if (ed->state != ED_OPER) - ep_link (ohci, ed); + ep_link(ohci, ed); /* fill the TDs and link it to the ed */ - td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval); + td_submit_job(dev, pipe, buffer, transfer_len, + setup, purb_priv, interval); return 0; } @@ -511,19 +516,19 @@ static inline int sohci_return_job(struct ohci *hc, urb_priv_t *urb) { struct ohci_regs *regs = hc->regs; - switch (usb_pipetype (urb->pipe)) { + switch (usb_pipetype(urb->pipe)) { case PIPE_INTERRUPT: /* implicitly requeued */ if (urb->dev->irq_handle && (urb->dev->irq_act_len = urb->actual_length)) { - writel (OHCI_INTR_WDH, ®s->intrenable); - readl (®s->intrenable); /* PCI posting flush */ + writel(OHCI_INTR_WDH, ®s->intrenable); + readl(®s->intrenable); /* PCI posting flush */ urb->dev->irq_handle(urb->dev); - writel (OHCI_INTR_WDH, ®s->intrdisable); - readl (®s->intrdisable); /* PCI posting flush */ + writel(OHCI_INTR_WDH, ®s->intrdisable); + readl(®s->intrdisable); /* PCI posting flush */ } urb->actual_length = 0; - td_submit_job ( + td_submit_job( urb->dev, urb->pipe, urb->transfer_buffer, @@ -546,11 +551,11 @@ static inline int sohci_return_job(struct ohci *hc, urb_priv_t *urb) #ifdef DEBUG /* tell us the current USB frame number */ -static int sohci_get_current_frame_number (struct usb_device *usb_dev) +static int sohci_get_current_frame_number(struct usb_device *usb_dev) { ohci_t *ohci = &gohci; - return m16_swap (ohci->hcca->frame_no); + return m16_swap(ohci->hcca->frame_no); } #endif @@ -563,7 +568,7 @@ static int sohci_get_current_frame_number (struct usb_device *usb_dev) * returns the branch and * sets the interval to interval = 2^integer (ld (interval)) */ -static int ep_int_ballance (ohci_t * ohci, int interval, int load) +static int ep_int_ballance(ohci_t *ohci, int interval, int load) { int i, branch = 0; @@ -585,20 +590,19 @@ static int ep_int_ballance (ohci_t * ohci, int interval, int load) /* 2^int( ld (inter)) */ -static int ep_2_n_interval (int inter) +static int ep_2_n_interval(int inter) { int i; - for (i = 0; ((inter >> i) > 1 ) && (i < 5); i++); + for (i = 0; ((inter >> i) > 1) && (i < 5); i++); return 1 << i; } /*-------------------------------------------------------------------------*/ /* the int tree is a binary tree - * in order to process it sequentially the indexes of the branches have to be mapped - * the mapping reverses the bits of a word of num_bits length */ - -static int ep_rev (int num_bits, int word) + * in order to process it sequentially the indexes of the branches have to + * be mapped the mapping reverses the bits of a word of num_bits length */ +static int ep_rev(int num_bits, int word) { int i, wout = 0; @@ -613,7 +617,7 @@ static int ep_rev (int num_bits, int word) /* link an ed into one of the HC chains */ -static int ep_link (ohci_t *ohci, ed_t *edi) +static int ep_link(ohci_t *ohci, ed_t *edi) { volatile ed_t *ed = edi; int int_branch; @@ -621,7 +625,7 @@ static int ep_link (ohci_t *ohci, ed_t *edi) int inter; int interval; int load; - __u32 * ed_p; + __u32 *ed_p; ed->state = ED_OPER; ed->int_interval = 0; @@ -629,49 +633,54 @@ static int ep_link (ohci_t *ohci, ed_t *edi) switch (ed->type) { case PIPE_CONTROL: ed->hwNextED = 0; - if (ohci->ed_controltail == NULL) { - writel (ed, &ohci->regs->ed_controlhead); - } else { - ohci->ed_controltail->hwNextED = m32_swap ((unsigned long)ed); - } + if (ohci->ed_controltail == NULL) + writel(ed, &ohci->regs->ed_controlhead); + else + ohci->ed_controltail->hwNextED = + m32_swap((unsigned long)ed); + ed->ed_prev = ohci->ed_controltail; if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && !ohci->ed_rm_list[1] && !ohci->sleeping) { ohci->hc_control |= OHCI_CTRL_CLE; - writel (ohci->hc_control, &ohci->regs->control); + writel(ohci->hc_control, &ohci->regs->control); } ohci->ed_controltail = edi; break; case PIPE_BULK: ed->hwNextED = 0; - if (ohci->ed_bulktail == NULL) { - writel (ed, &ohci->regs->ed_bulkhead); - } else { - ohci->ed_bulktail->hwNextED = m32_swap ((unsigned long)ed); - } + if (ohci->ed_bulktail == NULL) + writel(ed, &ohci->regs->ed_bulkhead); + else + ohci->ed_bulktail->hwNextED = + m32_swap((unsigned long)ed); + ed->ed_prev = ohci->ed_bulktail; if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && !ohci->ed_rm_list[1] && !ohci->sleeping) { ohci->hc_control |= OHCI_CTRL_BLE; - writel (ohci->hc_control, &ohci->regs->control); + writel(ohci->hc_control, &ohci->regs->control); } ohci->ed_bulktail = edi; break; case PIPE_INTERRUPT: load = ed->int_load; - interval = ep_2_n_interval (ed->int_period); + interval = ep_2_n_interval(ed->int_period); ed->int_interval = interval; - int_branch = ep_int_ballance (ohci, interval, load); + int_branch = ep_int_ballance(ohci, interval, load); ed->int_branch = int_branch; - for (i = 0; i < ep_rev (6, interval); i += inter) { + for (i = 0; i < ep_rev(6, interval); i += inter) { inter = 1; - for (ed_p = &(ohci->hcca->int_table[ep_rev (5, i) + int_branch]); - (*ed_p != 0) && (((ed_t *)ed_p)->int_interval >= interval); + for (ed_p = &(ohci->hcca->int_table[\ + ep_rev(5, i) + int_branch]); + (*ed_p != 0) && + (((ed_t *)ed_p)->int_interval >= interval); ed_p = &(((ed_t *)ed_p)->hwNextED)) - inter = ep_rev (6, ((ed_t *)ed_p)->int_interval); + inter = ep_rev(6, + ((ed_t *)ed_p)->int_interval); ed->hwNextED = *ed_p; *ed_p = m32_swap((unsigned long)ed); } @@ -683,19 +692,21 @@ static int ep_link (ohci_t *ohci, ed_t *edi) /*-------------------------------------------------------------------------*/ /* scan the periodic table to find and unlink this ED */ -static void periodic_unlink ( struct ohci *ohci, volatile struct ed *ed, - unsigned index, unsigned period) +static void periodic_unlink(struct ohci *ohci, volatile struct ed *ed, + unsigned index, unsigned period) { for (; index < NUM_INTS; index += period) { __u32 *ed_p = &ohci->hcca->int_table [index]; /* ED might have been unlinked through another path */ while (*ed_p != 0) { - if (((struct ed *)m32_swap ((unsigned long)ed_p)) == ed) { + if (((struct ed *) + m32_swap((unsigned long)ed_p)) == ed) { *ed_p = ed->hwNextED; break; } - ed_p = & (((struct ed *)m32_swap ((unsigned long)ed_p))->hwNextED); + ed_p = &(((struct ed *) + m32_swap((unsigned long)ed_p))->hwNextED); } } } @@ -705,28 +716,30 @@ static void periodic_unlink ( struct ohci *ohci, volatile struct ed *ed, * the link from the ed still points to another operational ed or 0 * so the HC can eventually finish the processing of the unlinked ed */ -static int ep_unlink (ohci_t *ohci, ed_t *edi) +static int ep_unlink(ohci_t *ohci, ed_t *edi) { volatile ed_t *ed = edi; int i; - ed->hwINFO |= m32_swap (OHCI_ED_SKIP); + ed->hwINFO |= m32_swap(OHCI_ED_SKIP); switch (ed->type) { case PIPE_CONTROL: if (ed->ed_prev == NULL) { if (!ed->hwNextED) { ohci->hc_control &= ~OHCI_CTRL_CLE; - writel (ohci->hc_control, &ohci->regs->control); + writel(ohci->hc_control, &ohci->regs->control); } - writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead); + writel(m32_swap(*((__u32 *)&ed->hwNextED)), + &ohci->regs->ed_controlhead); } else { ed->ed_prev->hwNextED = ed->hwNextED; } if (ohci->ed_controltail == ed) { ohci->ed_controltail = ed->ed_prev; } else { - ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + ((ed_t *)m32_swap( + *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; } break; @@ -734,21 +747,23 @@ static int ep_unlink (ohci_t *ohci, ed_t *edi) if (ed->ed_prev == NULL) { if (!ed->hwNextED) { ohci->hc_control &= ~OHCI_CTRL_BLE; - writel (ohci->hc_control, &ohci->regs->control); + writel(ohci->hc_control, &ohci->regs->control); } - writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead); + writel(m32_swap(*((__u32 *)&ed->hwNextED)), + &ohci->regs->ed_bulkhead); } else { ed->ed_prev->hwNextED = ed->hwNextED; } if (ohci->ed_bulktail == ed) { ohci->ed_bulktail = ed->ed_prev; } else { - ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + ((ed_t *)m32_swap( + *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; } break; case PIPE_INTERRUPT: - periodic_unlink (ohci, ed, 0, 1); + periodic_unlink(ohci, ed, 0, 1); for (i = ed->int_branch; i < 32; i += ed->int_interval) ohci->ohci_int_load[i] -= ed->int_load; break; @@ -767,15 +782,15 @@ static int ep_unlink (ohci_t *ohci, ed_t *edi) * info fields are setted anyway even though most of them should not * change */ -static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe, - int interval, int load) +static ed_t *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe, + int interval, int load) { td_t *td; ed_t *ed_ret; volatile ed_t *ed; - ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) | - (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))]; + ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint(pipe) << 1) | + (usb_pipecontrol(pipe)? 0: usb_pipeout(pipe))]; if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { err("ep_add_ed: pending delete"); @@ -784,22 +799,22 @@ static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe, } if (ed->state == ED_NEW) { - ed->hwINFO = m32_swap (OHCI_ED_SKIP); /* skip ed */ /* dummy td; end of td list for ed */ - td = td_alloc (usb_dev); - ed->hwTailP = m32_swap ((unsigned long)td); + td = td_alloc(usb_dev); + ed->hwTailP = m32_swap((unsigned long)td); ed->hwHeadP = ed->hwTailP; ed->state = ED_UNLINK; - ed->type = usb_pipetype (pipe); + ed->type = usb_pipetype(pipe); ohci_dev.ed_cnt++; } - ed->hwINFO = m32_swap (usb_pipedevice (pipe) - | usb_pipeendpoint (pipe) << 7 - | (usb_pipeisoc (pipe)? 0x8000: 0) - | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000)) - | usb_pipeslow (pipe) << 13 - | usb_maxpacket (usb_dev, pipe) << 16); + ed->hwINFO = m32_swap(usb_pipedevice(pipe) + | usb_pipeendpoint(pipe) << 7 + | (usb_pipeisoc(pipe)? 0x8000: 0) + | (usb_pipecontrol(pipe)? 0: \ + (usb_pipeout(pipe)? 0x800: 0x1000)) + | usb_pipeslow(pipe) << 13 + | usb_maxpacket(usb_dev, pipe) << 16); if (ed->type == PIPE_INTERRUPT && ed->state == ED_UNLINK) { ed->int_period = interval; @@ -815,7 +830,7 @@ static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe, /* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ -static void td_fill (ohci_t *ohci, unsigned int info, +static void td_fill(ohci_t *ohci, unsigned int info, void *data, int len, struct usb_device *dev, int index, urb_priv_t *urb_priv) { @@ -833,29 +848,32 @@ static void td_fill (ohci_t *ohci, unsigned int info, td_pt->hwNextTD = 0; /* fill the old dummy TD */ - td = urb_priv->td [index] = (td_t *)(m32_swap (urb_priv->ed->hwTailP) & ~0xf); + td = urb_priv->td [index] = + (td_t *)(m32_swap(urb_priv->ed->hwTailP) & ~0xf); td->ed = urb_priv->ed; td->next_dl_td = NULL; td->index = index; td->data = (__u32)data; #ifdef OHCI_FILL_TRACE - if ((usb_pipetype(urb_priv->pipe) == PIPE_BULK) && usb_pipeout(urb_priv->pipe)) { + if ((usb_pipetype(urb_priv->pipe) == PIPE_BULK) && + usb_pipeout(urb_priv->pipe)) { for (i = 0; i < len; i++) - printf("td->data[%d] %#2x ",i, ((unsigned char *)td->data)[i]); + printf("td->data[%d] %#2x ", i, ((unsigned char *)td->data)[i]); printf("\n"); } #endif if (!len) data = 0; - td->hwINFO = m32_swap (info); - td->hwCBP = m32_swap ((unsigned long)data); + td->hwINFO = m32_swap(info); + td->hwCBP = m32_swap((unsigned long)data); if (data) - td->hwBE = m32_swap ((unsigned long)(data + len - 1)); + td->hwBE = m32_swap((unsigned long)(data + len - 1)); else td->hwBE = 0; - td->hwNextTD = m32_swap ((unsigned long)td_pt); + + td->hwNextTD = m32_swap((unsigned long)td_pt); /* append to queue */ td->ed->hwTailP = td->hwNextTD; @@ -865,8 +883,10 @@ static void td_fill (ohci_t *ohci, unsigned int info, /* prepare all TDs of a transfer */ -static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval) +static void td_submit_job(struct usb_device *dev, unsigned long pipe, + void *buffer, int transfer_len, + struct devrequest *setup, urb_priv_t *urb, + int interval) { ohci_t *ohci = &gohci; int data_len = transfer_len; @@ -875,12 +895,14 @@ static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buf __u32 info = 0; unsigned int toggle = 0; - /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */ - if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { + /* OHCI handles the DATA-toggles itself, we just use the USB-toggle + * bits for reseting */ + if (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { toggle = TD_T_TOGGLE; } else { toggle = TD_T_DATA0; - usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1); + usb_settoggle(dev, usb_pipeendpoint(pipe), + usb_pipeout(pipe), 1); } urb->td_cnt = 0; if (data_len) @@ -888,44 +910,58 @@ static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buf else data = 0; - switch (usb_pipetype (pipe)) { + switch (usb_pipetype(pipe)) { case PIPE_BULK: - info = usb_pipeout (pipe)? + info = usb_pipeout(pipe)? TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; - while(data_len > 4096) { - td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb); + while (data_len > 4096) { + td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), + data, 4096, dev, cnt, urb); data += 4096; data_len -= 4096; cnt++; } - info = usb_pipeout (pipe)? + info = usb_pipeout(pipe)? TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; - td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb); + td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), data, + data_len, dev, cnt, urb); cnt++; - if (!ohci->sleeping) - writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */ + if (!ohci->sleeping) { + /* start bulk list */ + writel(OHCI_BLF, &ohci->regs->cmdstatus); + } break; case PIPE_CONTROL: + /* Setup phase */ info = TD_CC | TD_DP_SETUP | TD_T_DATA0; - td_fill (ohci, info, setup, 8, dev, cnt++, urb); + td_fill(ohci, info, setup, 8, dev, cnt++, urb); + + /* Optional Data phase */ if (data_len > 0) { - info = usb_pipeout (pipe)? - TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; + info = usb_pipeout(pipe)? + TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : + TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; /* NOTE: mishandles transfers >8K, some >4K */ - td_fill (ohci, info, data, data_len, dev, cnt++, urb); + td_fill(ohci, info, data, data_len, dev, cnt++, urb); + } + + /* Status phase */ + info = usb_pipeout(pipe)? + TD_CC | TD_DP_IN | TD_T_DATA1: + TD_CC | TD_DP_OUT | TD_T_DATA1; + td_fill(ohci, info, data, 0, dev, cnt++, urb); + + if (!ohci->sleeping) { + /* start Control list */ + writel(OHCI_CLF, &ohci->regs->cmdstatus); } - info = usb_pipeout (pipe)? - TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1; - td_fill (ohci, info, data, 0, dev, cnt++, urb); - if (!ohci->sleeping) - writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */ break; case PIPE_INTERRUPT: - info = usb_pipeout (urb->pipe)? + info = usb_pipeout(urb->pipe)? TD_CC | TD_DP_OUT | toggle: TD_CC | TD_R | TD_DP_IN | toggle; - td_fill (ohci, info, data, data_len, dev, cnt++, urb); + td_fill(ohci, info, data, data_len, dev, cnt++, urb); break; } if (urb->length != cnt) @@ -938,16 +974,16 @@ static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buf /* calculate the transfer length and update the urb */ -static void dl_transfer_length(td_t * td) +static void dl_transfer_length(td_t *td) { __u32 tdINFO, tdBE, tdCBP; urb_priv_t *lurb_priv = td->ed->purb; - tdINFO = m32_swap (td->hwINFO); - tdBE = m32_swap (td->hwBE); - tdCBP = m32_swap (td->hwCBP); + tdINFO = m32_swap(td->hwINFO); + tdBE = m32_swap(td->hwBE); + tdCBP = m32_swap(td->hwCBP); - if (!(usb_pipetype (lurb_priv->pipe) == PIPE_CONTROL && + if (!(usb_pipetype(lurb_priv->pipe) == PIPE_CONTROL && ((td->index == 0) || (td->index == lurb_priv->length - 1)))) { if (tdBE != 0) { if (td->hwCBP == 0) @@ -959,105 +995,128 @@ static void dl_transfer_length(td_t * td) } /*-------------------------------------------------------------------------*/ +static void check_status(td_t *td_list) +{ + urb_priv_t *lurb_priv = td_list->ed->purb; + int urb_len = lurb_priv->length; + __u32 *phwHeadP = &td_list->ed->hwHeadP; + int cc; + + cc = TD_CC_GET(m32_swap(td_list->hwINFO)); + if (cc) { + err(" USB-error: %s (%x)", cc_to_string[cc], cc); + + if (*phwHeadP & m32_swap(0x1)) { + if (lurb_priv && + ((td_list->index + 1) < urb_len)) { + *phwHeadP = + (lurb_priv->td[urb_len - 1]->hwNextTD &\ + m32_swap(0xfffffff0)) | + (*phwHeadP & m32_swap(0x2)); + + lurb_priv->td_cnt += urb_len - + td_list->index - 1; + } else + *phwHeadP &= m32_swap(0xfffffff2); + } +#ifdef CONFIG_MPC5200 + td_list->hwNextTD = 0; +#endif + } +} /* replies to the request have to be on a FIFO basis so * we reverse the reversed done-list */ - -static td_t * dl_reverse_done_list (ohci_t *ohci) +static td_t *dl_reverse_done_list(ohci_t *ohci) { __u32 td_list_hc; td_t *td_rev = NULL; td_t *td_list = NULL; - urb_priv_t *lurb_priv = NULL; - td_list_hc = m32_swap (ohci->hcca->done_head) & 0xfffffff0; + td_list_hc = m32_swap(ohci->hcca->done_head) & 0xfffffff0; ohci->hcca->done_head = 0; while (td_list_hc) { td_list = (td_t *)td_list_hc; - - if (TD_CC_GET (m32_swap (td_list->hwINFO))) { - lurb_priv = td_list->ed->purb; - dbg(" USB-error/status: %x : %p", - TD_CC_GET (m32_swap (td_list->hwINFO)), td_list); - if (td_list->ed->hwHeadP & m32_swap (0x1)) { - if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) { - td_list->ed->hwHeadP = - (lurb_priv->td[lurb_priv->length - 1]->hwNextTD & m32_swap (0xfffffff0)) | - (td_list->ed->hwHeadP & m32_swap (0x2)); - lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1; - } else - td_list->ed->hwHeadP &= m32_swap (0xfffffff2); - } -#ifdef CONFIG_MPC5200 - td_list->hwNextTD = 0; -#endif - } - + check_status(td_list); td_list->next_dl_td = td_rev; td_rev = td_list; - td_list_hc = m32_swap (td_list->hwNextTD) & 0xfffffff0; + td_list_hc = m32_swap(td_list->hwNextTD) & 0xfffffff0; } return td_list; } /*-------------------------------------------------------------------------*/ +/*-------------------------------------------------------------------------*/ -/* td done list */ -static int dl_done_list (ohci_t *ohci, td_t *td_list) +static void finish_urb(ohci_t *ohci, urb_priv_t *urb, int status) +{ + if ((status & (ED_OPER | ED_UNLINK)) && (urb->state != URB_DEL)) + urb->finished = sohci_return_job(ohci, urb); + else + dbg("finish_urb: strange.., ED state %x, \n", status); +} + +/* + * Used to take back a TD from the host controller. This would normally be + * called from within dl_done_list, however it may be called directly if the + * HC no longer sees the TD and it has not appeared on the donelist (after + * two frames). This bug has been observed on ZF Micro systems. + */ +static int takeback_td(ohci_t *ohci, td_t *td_list) { - td_t *td_list_next = NULL; ed_t *ed; - int cc = 0; + int cc; int stat = 0; /* urb_t *urb; */ urb_priv_t *lurb_priv; __u32 tdINFO, edHeadP, edTailP; - while (td_list) { - td_list_next = td_list->next_dl_td; + tdINFO = m32_swap(td_list->hwINFO); - tdINFO = m32_swap (td_list->hwINFO); + ed = td_list->ed; + lurb_priv = ed->purb; - ed = td_list->ed; - lurb_priv = ed->purb; + dl_transfer_length(td_list); - dl_transfer_length(td_list); + lurb_priv->td_cnt++; - /* error code of transfer */ - cc = TD_CC_GET (tdINFO); - if (cc != 0) { - dbg("ConditionCode %#x", cc); - stat = cc_to_error[cc]; - } + /* error code of transfer */ + cc = TD_CC_GET(tdINFO); + if (cc) { + err("USB-error: %s (%x)", cc_to_string[cc], cc); + stat = cc_to_error[cc]; + } - /* see if this done list makes for all TD's of current URB, - * and mark the URB finished if so */ - if (++(lurb_priv->td_cnt) == lurb_priv->length) { -#if 1 - if ((ed->state & (ED_OPER | ED_UNLINK)) && - (lurb_priv->state != URB_DEL)) -#else - if ((ed->state & (ED_OPER | ED_UNLINK))) -#endif - lurb_priv->finished = sohci_return_job(ohci, - lurb_priv); - else - dbg("dl_done_list: strange.., ED state %x, ed->state\n"); - } else - dbg("dl_done_list: processing TD %x, len %x\n", lurb_priv->td_cnt, - lurb_priv->length); - if (ed->state != ED_NEW && - (usb_pipetype (lurb_priv->pipe) != PIPE_INTERRUPT)) { - edHeadP = m32_swap (ed->hwHeadP) & 0xfffffff0; - edTailP = m32_swap (ed->hwTailP); - - /* unlink eds if they are not busy */ - if ((edHeadP == edTailP) && (ed->state == ED_OPER)) - ep_unlink (ohci, ed); - } + /* see if this done list makes for all TD's of current URB, + * and mark the URB finished if so */ + if (lurb_priv->td_cnt == lurb_priv->length) + finish_urb(ohci, lurb_priv, ed->state); + + dbg("dl_done_list: processing TD %x, len %x\n", + lurb_priv->td_cnt, lurb_priv->length); + + if (ed->state != ED_NEW && + (usb_pipetype(lurb_priv->pipe) != PIPE_INTERRUPT)) { + edHeadP = m32_swap(ed->hwHeadP) & 0xfffffff0; + edTailP = m32_swap(ed->hwTailP); + + /* unlink eds if they are not busy */ + if ((edHeadP == edTailP) && (ed->state == ED_OPER)) + ep_unlink(ohci, ed); + } + return stat; +} - td_list = td_list_next; +static int dl_done_list(ohci_t *ohci) +{ + int stat = 0; + td_t *td_list = dl_reverse_done_list(ohci); + + while (td_list) { + td_t *td_next = td_list->next_dl_td; + stat = takeback_td(ohci, td_list); + td_list = td_next; } return stat; } @@ -1100,7 +1159,7 @@ static __u8 root_hub_config_des[] = 0x01, /* __u8 bConfigurationValue; */ 0x00, /* __u8 iConfiguration; */ 0x40, /* __u8 bmAttributes; - Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ + Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ 0x00, /* __u8 MaxPower; */ /* interface */ @@ -1170,14 +1229,17 @@ static unsigned char root_hub_str_index1[] = #define OK(x) len = (x); break #ifdef DEBUG -#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);} -#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);} +#define WR_RH_STAT(x) {info("WR:status %#8x", (x)); writel((x), \ + &gohci.regs->roothub.status); } +#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, \ + (x)); writel((x), &gohci.regs->roothub.portstatus[wIndex-1]); } #else #define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status) -#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1]) +#define WR_RH_PORTSTAT(x) writel((x), \ + &gohci.regs->roothub.portstatus[wIndex-1]) #endif #define RD_RH_STAT roothub_status(&gohci) -#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1) +#define RD_RH_PORTSTAT roothub_portstatus(&gohci, wIndex-1) /* request to virtual root hub */ @@ -1187,13 +1249,13 @@ int rh_check_port_status(ohci_t *controller) int res; res = -1; - temp = roothub_a (controller); + temp = roothub_a(controller); ndp = (temp & RH_A_NDP); #ifdef CONFIG_AT91C_PQFP_UHPBUG ndp = (ndp == 2) ? 1:0; #endif for (i = 0; i < ndp; i++) { - temp = roothub_portstatus (controller, i); + temp = roothub_portstatus(controller, i); /* check for a device disconnect */ if (((temp & (RH_PS_PESC | RH_PS_CSC)) == (RH_PS_PESC | RH_PS_CSC)) && @@ -1208,7 +1270,7 @@ int rh_check_port_status(ohci_t *controller) static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, void *buffer, int transfer_len, struct devrequest *cmd) { - void * data = buffer; + void *data = buffer; int leni = transfer_len; int len = 0; int stat = 0; @@ -1220,7 +1282,8 @@ static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, __u16 wLength; #ifdef DEBUG -pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); +pkt_print(NULL, dev, pipe, buffer, transfer_len, + cmd, "SUB(rh)", usb_pipein(pipe)); #else wait_ms(1); #endif @@ -1230,9 +1293,9 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe } bmRType_bReq = cmd->requesttype | (cmd->request << 8); - wValue = le16_to_cpu (cmd->value); - wIndex = le16_to_cpu (cmd->index); - wLength = le16_to_cpu (cmd->length); + wValue = le16_to_cpu(cmd->value); + wIndex = le16_to_cpu(cmd->index); + wLength = le16_to_cpu(cmd->length); info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); @@ -1247,118 +1310,118 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe */ case RH_GET_STATUS: - *(__u16 *) data_buf = cpu_to_le16 (1); OK (2); + *(__u16 *) data_buf = cpu_to_le16(1); + OK(2); case RH_GET_STATUS | RH_INTERFACE: - *(__u16 *) data_buf = cpu_to_le16 (0); OK (2); + *(__u16 *) data_buf = cpu_to_le16(0); + OK(2); case RH_GET_STATUS | RH_ENDPOINT: - *(__u16 *) data_buf = cpu_to_le16 (0); OK (2); + *(__u16 *) data_buf = cpu_to_le16(0); + OK(2); case RH_GET_STATUS | RH_CLASS: - *(__u32 *) data_buf = cpu_to_le32 ( + *(__u32 *) data_buf = cpu_to_le32( RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); - OK (4); + OK(4); case RH_GET_STATUS | RH_OTHER | RH_CLASS: - *(__u32 *) data_buf = cpu_to_le32 (RD_RH_PORTSTAT); OK (4); + *(__u32 *) data_buf = cpu_to_le32(RD_RH_PORTSTAT); + OK(4); case RH_CLEAR_FEATURE | RH_ENDPOINT: switch (wValue) { - case (RH_ENDPOINT_STALL): OK (0); + case (RH_ENDPOINT_STALL): + OK(0); } break; case RH_CLEAR_FEATURE | RH_CLASS: switch (wValue) { - case RH_C_HUB_LOCAL_POWER: - OK(0); - case (RH_C_HUB_OVER_CURRENT): - WR_RH_STAT(RH_HS_OCIC); OK (0); + case RH_C_HUB_LOCAL_POWER: + OK(0); + case (RH_C_HUB_OVER_CURRENT): + WR_RH_STAT(RH_HS_OCIC); + OK(0); } break; case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: switch (wValue) { - case (RH_PORT_ENABLE): - WR_RH_PORTSTAT (RH_PS_CCS ); OK (0); - case (RH_PORT_SUSPEND): - WR_RH_PORTSTAT (RH_PS_POCI); OK (0); - case (RH_PORT_POWER): - WR_RH_PORTSTAT (RH_PS_LSDA); OK (0); - case (RH_C_PORT_CONNECTION): - WR_RH_PORTSTAT (RH_PS_CSC ); OK (0); - case (RH_C_PORT_ENABLE): - WR_RH_PORTSTAT (RH_PS_PESC); OK (0); - case (RH_C_PORT_SUSPEND): - WR_RH_PORTSTAT (RH_PS_PSSC); OK (0); - case (RH_C_PORT_OVER_CURRENT): - WR_RH_PORTSTAT (RH_PS_OCIC); OK (0); - case (RH_C_PORT_RESET): - WR_RH_PORTSTAT (RH_PS_PRSC); OK (0); + case (RH_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_CCS); OK(0); + case (RH_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_POCI); OK(0); + case (RH_PORT_POWER): WR_RH_PORTSTAT(RH_PS_LSDA); OK(0); + case (RH_C_PORT_CONNECTION): WR_RH_PORTSTAT(RH_PS_CSC); OK(0); + case (RH_C_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_PESC); OK(0); + case (RH_C_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_PSSC); OK(0); + case (RH_C_PORT_OVER_CURRENT):WR_RH_PORTSTAT(RH_PS_OCIC); OK(0); + case (RH_C_PORT_RESET): WR_RH_PORTSTAT(RH_PS_PRSC); OK(0); } break; case RH_SET_FEATURE | RH_OTHER | RH_CLASS: switch (wValue) { - case (RH_PORT_SUSPEND): - WR_RH_PORTSTAT (RH_PS_PSS ); OK (0); - case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ - if (RD_RH_PORTSTAT & RH_PS_CCS) - WR_RH_PORTSTAT (RH_PS_PRS); - OK (0); - case (RH_PORT_POWER): - WR_RH_PORTSTAT (RH_PS_PPS ); - wait_ms(100); - OK (0); - case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ - if (RD_RH_PORTSTAT & RH_PS_CCS) - WR_RH_PORTSTAT (RH_PS_PES ); - OK (0); + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT(RH_PS_PSS); OK(0); + case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT(RH_PS_PRS); + OK(0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT(RH_PS_PPS); + wait_ms(100); + OK(0); + case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT(RH_PS_PES); + OK(0); } break; - case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0); + case RH_SET_ADDRESS: + gohci.rh.devnum = wValue; + OK(0); case RH_GET_DESCRIPTOR: switch ((wValue & 0xff00) >> 8) { - case (0x01): /* device descriptor */ + case (0x01): /* device descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof(root_hub_dev_des), + wLength)); + data_buf = root_hub_dev_des; OK(len); + case (0x02): /* configuration descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof(root_hub_config_des), + wLength)); + data_buf = root_hub_config_des; OK(len); + case (0x03): /* string descriptors */ + if (wValue == 0x0300) { len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof (root_hub_dev_des), - wLength)); - data_buf = root_hub_dev_des; OK(len); - case (0x02): /* configuration descriptor */ - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof (root_hub_config_des), - wLength)); - data_buf = root_hub_config_des; OK(len); - case (0x03): /* string descriptors */ - if(wValue==0x0300) { - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof (root_hub_str_index0), - wLength)); - data_buf = root_hub_str_index0; - OK(len); - } - if(wValue==0x0301) { - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof (root_hub_str_index1), - wLength)); - data_buf = root_hub_str_index1; - OK(len); + leni, + min_t(unsigned int, + sizeof(root_hub_str_index0), + wLength)); + data_buf = root_hub_str_index0; + OK(len); } - default: - stat = USB_ST_STALLED; + if (wValue == 0x0301) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof(root_hub_str_index1), + wLength)); + data_buf = root_hub_str_index1; + OK(len); + } + default: + stat = USB_ST_STALLED; } break; case RH_GET_DESCRIPTOR | RH_CLASS: { - __u32 temp = roothub_a (&gohci); + __u32 temp = roothub_a(&gohci); data_buf [0] = 9; /* min length; */ data_buf [1] = 0x29; @@ -1371,13 +1434,13 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe data_buf [3] |= 0x1; if (temp & RH_A_NOCP) /* no overcurrent reporting? */ data_buf [3] |= 0x10; - else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */ + else if (temp & RH_A_OCPM)/* per-port overcurrent reporting? */ data_buf [3] |= 0x8; /* corresponds to data_buf[4-7] */ datab [1] = 0; data_buf [5] = (temp & RH_A_POTPGT) >> 24; - temp = roothub_b (&gohci); + temp = roothub_b(&gohci); data_buf [7] = temp & RH_B_DR; if (data_buf [2] < 7) { data_buf [8] = 0xff; @@ -1389,32 +1452,33 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe len = min_t(unsigned int, leni, min_t(unsigned int, data_buf [0], wLength)); - OK (len); + OK(len); } - case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1); + case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK(1); - case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0); + case RH_SET_CONFIGURATION: WR_RH_STAT(0x10000); OK(0); default: - dbg ("unsupported root hub command"); + dbg("unsupported root hub command"); stat = USB_ST_STALLED; } #ifdef DEBUG - ohci_dump_roothub (&gohci, 1); + ohci_dump_roothub(&gohci, 1); #else wait_ms(1); #endif len = min_t(int, len, leni); if (data != data_buf) - memcpy (data, data_buf, len); + memcpy(data, data_buf, len); dev->act_len = len; dev->status = stat; #ifdef DEBUG - pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); + pkt_print(NULL, dev, pipe, buffer, + transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); #else wait_ms(1); #endif @@ -1451,7 +1515,8 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, #ifdef DEBUG urb->actual_length = 0; - pkt_print(urb, dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); + pkt_print(urb, dev, pipe, buffer, transfer_len, + setup, "SUB", usb_pipein(pipe)); #else wait_ms(1); #endif @@ -1473,7 +1538,7 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, /* allow more time for a BULK device to react - some are slow */ #define BULK_TO 5000 /* timeout in milliseconds */ - if (usb_pipetype (pipe) == PIPE_BULK) + if (usb_pipetype(pipe) == PIPE_BULK) timeout = BULK_TO; else timeout = 100; @@ -1504,7 +1569,7 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, if (--timeout) { wait_ms(1); if (!urb->finished) - dbg("\%"); + dbg("*"); } else { err("CTL:TIMEOUT "); @@ -1519,14 +1584,15 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, dev->act_len = transfer_len; #ifdef DEBUG - pkt_print(urb, dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe)); + pkt_print(urb, dev, pipe, buffer, transfer_len, + setup, "RET(ctlr)", usb_pipein(pipe)); #else wait_ms(1); #endif /* free TDs in urb_priv */ - if (usb_pipetype (pipe) != PIPE_INTERRUPT) - urb_free_priv (urb); + if (usb_pipetype(pipe) != PIPE_INTERRUPT) + urb_free_priv(urb); return 0; } @@ -1545,7 +1611,8 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, info("submit_control_msg"); #ifdef DEBUG - pkt_print(NULL, dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); + pkt_print(NULL, dev, pipe, buffer, transfer_len, + setup, "SUB", usb_pipein(pipe)); #else wait_ms(1); #endif @@ -1578,7 +1645,7 @@ int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, /* reset the HC and BUS */ -static int hc_reset (ohci_t *ohci) +static int hc_reset(ohci_t *ohci) { #ifdef CONFIG_PCI_EHCI_DEVNO pci_dev_t pdev; @@ -1599,7 +1666,7 @@ static int hc_reset (ohci_t *ohci) int timeout = 1000; pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base); - writel (readl(base + EHCI_USBCMD_OFF) | EHCI_USBCMD_HCRESET, + writel(readl(base + EHCI_USBCMD_OFF) | EHCI_USBCMD_HCRESET, base + EHCI_USBCMD_OFF); while (readl(base + EHCI_USBCMD_OFF) & EHCI_USBCMD_HCRESET) { @@ -1612,11 +1679,12 @@ static int hc_reset (ohci_t *ohci) } else printf("No EHCI func at %d index!\n", CONFIG_PCI_EHCI_DEVNO); #endif - if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */ - writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */ + if (readl(&ohci->regs->control) & OHCI_CTRL_IR) { + /* SMM owns the HC */ + writel(OHCI_OCR, &ohci->regs->cmdstatus);/* request ownership */ info("USB HC TakeOver from SMM"); - while (readl (&ohci->regs->control) & OHCI_CTRL_IR) { - wait_ms (10); + while (readl(&ohci->regs->control) & OHCI_CTRL_IR) { + wait_ms(10); if (--smm_timeout == 0) { err("USB HC TakeOver failed!"); return -1; @@ -1625,7 +1693,7 @@ static int hc_reset (ohci_t *ohci) } /* Disable HC interrupts */ - writel (OHCI_INTR_MIE, &ohci->regs->intrdisable); + writel(OHCI_INTR_MIE, &ohci->regs->intrdisable); dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n", ohci->slot_name, @@ -1633,16 +1701,16 @@ static int hc_reset (ohci_t *ohci) /* Reset USB (needed by some controllers) */ ohci->hc_control = 0; - writel (ohci->hc_control, &ohci->regs->control); + writel(ohci->hc_control, &ohci->regs->control); /* HC Reset requires max 10 us delay */ - writel (OHCI_HCR, &ohci->regs->cmdstatus); - while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { + writel(OHCI_HCR, &ohci->regs->cmdstatus); + while ((readl(&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { if (--timeout == 0) { err("USB HC reset timed out!"); return -1; } - udelay (1); + udelay(1); } return 0; } @@ -1653,7 +1721,7 @@ static int hc_reset (ohci_t *ohci) * enable interrupts * connect the virtual root hub */ -static int hc_start (ohci_t * ohci) +static int hc_start(ohci_t *ohci) { __u32 mask; unsigned int fminterval; @@ -1663,44 +1731,44 @@ static int hc_start (ohci_t * ohci) /* Tell the controller where the control and bulk lists are * The lists are empty now. */ - writel (0, &ohci->regs->ed_controlhead); - writel (0, &ohci->regs->ed_bulkhead); + writel(0, &ohci->regs->ed_controlhead); + writel(0, &ohci->regs->ed_bulkhead); - writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */ + writel((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */ fminterval = 0x2edf; - writel ((fminterval * 9) / 10, &ohci->regs->periodicstart); + writel((fminterval * 9) / 10, &ohci->regs->periodicstart); fminterval |= ((((fminterval - 210) * 6) / 7) << 16); - writel (fminterval, &ohci->regs->fminterval); - writel (0x628, &ohci->regs->lsthresh); + writel(fminterval, &ohci->regs->fminterval); + writel(0x628, &ohci->regs->lsthresh); /* start controller operations */ ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; ohci->disabled = 0; - writel (ohci->hc_control, &ohci->regs->control); + writel(ohci->hc_control, &ohci->regs->control); /* disable all interrupts */ mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD | OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC | OHCI_INTR_OC | OHCI_INTR_MIE); - writel (mask, &ohci->regs->intrdisable); + writel(mask, &ohci->regs->intrdisable); /* clear all interrupts */ mask &= ~OHCI_INTR_MIE; - writel (mask, &ohci->regs->intrstatus); + writel(mask, &ohci->regs->intrstatus); /* Choose the interrupts we care about now - but w/o MIE */ mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; - writel (mask, &ohci->regs->intrenable); + writel(mask, &ohci->regs->intrenable); #ifdef OHCI_USE_NPS /* required for AMD-756 and some Mac platforms */ - writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM, + writel((roothub_a(ohci) | RH_A_NPS) & ~RH_A_PSM, &ohci->regs->roothub.a); - writel (RH_HS_LPSC, &ohci->regs->roothub.status); + writel(RH_HS_LPSC, &ohci->regs->roothub.status); #endif /* OHCI_USE_NPS */ -#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);}) +#define mdelay(n) ({unsigned long msec = (n); while (msec--) udelay(1000); }) /* POTPGT delay is bits 24-31, in 2 ms units. */ - mdelay ((roothub_a (ohci) >> 23) & 0x1fe); + mdelay((roothub_a(ohci) >> 23) & 0x1fe); /* connect the virtual root hub */ ohci->rh.devnum = 0; @@ -1718,7 +1786,7 @@ void usb_event_poll(void) /* an interrupt happens */ -static int hc_interrupt (void) +static int hc_interrupt(void) { ohci_t *ohci = &gohci; struct ohci_regs *regs = ohci->regs; @@ -1726,69 +1794,74 @@ static int hc_interrupt (void) int stat = -1; if ((ohci->hcca->done_head != 0) && - !(m32_swap (ohci->hcca->done_head) & 0x01)) { + !(m32_swap(ohci->hcca->done_head) & 0x01)) { ints = OHCI_INTR_WDH; - } else if ((ints = readl (®s->intrstatus)) == ~(u32)0) { - ohci->disabled++; - err ("%s device removed!", ohci->slot_name); - return -1; - } else if ((ints &= readl (®s->intrenable)) == 0) { - dbg("hc_interrupt: returning..\n"); - return 0xff; + } else { + ints = readl(®s->intrstatus); + if (ints == ~(u32)0) { + ohci->disabled++; + err("%s device removed!", ohci->slot_name); + return -1; + } else { + ints &= readl(®s->intrenable); + if (ints == 0) { + dbg("hc_interrupt: returning..\n"); + return 0xff; + } + } } - /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */ + /* dbg("Interrupt: %x frame: %x", ints, + le16_to_cpu(ohci->hcca->frame_no)); */ - if (ints & OHCI_INTR_RHSC) { - got_rhsc = 1; + if (ints & OHCI_INTR_RHSC) stat = 0xff; - } if (ints & OHCI_INTR_UE) { ohci->disabled++; - err ("OHCI Unrecoverable Error, controller usb-%s disabled", + err("OHCI Unrecoverable Error, controller usb-%s disabled", ohci->slot_name); /* e.g. due to PCI Master/Target Abort */ #ifdef DEBUG - ohci_dump (ohci, 1); + ohci_dump(ohci, 1); #else - wait_ms(1); + wait_ms(1); #endif /* FIXME: be optimistic, hope that bug won't repeat often. */ /* Make some non-interrupt context restart the controller. */ /* Count and limit the retries though; either hardware or */ /* software errors can go forever... */ - hc_reset (ohci); + hc_reset(ohci); return -1; } if (ints & OHCI_INTR_WDH) { wait_ms(1); - writel (OHCI_INTR_WDH, ®s->intrdisable); - (void)readl (®s->intrdisable); /* flush */ - stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci)); - writel (OHCI_INTR_WDH, ®s->intrenable); - (void)readl (®s->intrdisable); /* flush */ + writel(OHCI_INTR_WDH, ®s->intrdisable); + (void)readl(®s->intrdisable); /* flush */ + stat = dl_done_list(&gohci); + writel(OHCI_INTR_WDH, ®s->intrenable); + (void)readl(®s->intrdisable); /* flush */ } if (ints & OHCI_INTR_SO) { dbg("USB Schedule overrun\n"); - writel (OHCI_INTR_SO, ®s->intrenable); + writel(OHCI_INTR_SO, ®s->intrenable); stat = -1; } /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */ if (ints & OHCI_INTR_SF) { - unsigned int frame = m16_swap (ohci->hcca->frame_no) & 1; + unsigned int frame = m16_swap(ohci->hcca->frame_no) & 1; wait_ms(1); - writel (OHCI_INTR_SF, ®s->intrdisable); + writel(OHCI_INTR_SF, ®s->intrdisable); if (ohci->ed_rm_list[frame] != NULL) - writel (OHCI_INTR_SF, ®s->intrenable); + writel(OHCI_INTR_SF, ®s->intrenable); stat = 0xff; } - writel (ints, ®s->intrstatus); + writel(ints, ®s->intrstatus); return stat; } @@ -1798,12 +1871,12 @@ static int hc_interrupt (void) /* De-allocate all resources.. */ -static void hc_release_ohci (ohci_t *ohci) +static void hc_release_ohci(ohci_t *ohci) { - dbg ("USB HC release ohci usb-%s", ohci->slot_name); + dbg("USB HC release ohci usb-%s", ohci->slot_name); if (!ohci->disabled) - hc_reset (ohci); + hc_reset(ohci); } /*-------------------------------------------------------------------------*/ @@ -1821,16 +1894,16 @@ int usb_lowlevel_init(void) #ifdef CFG_USB_OHCI_CPU_INIT /* cpu dependant init */ - if(usb_cpu_init()) + if (usb_cpu_init()) return -1; #endif #ifdef CFG_USB_OHCI_BOARD_INIT /* board dependant init */ - if(usb_board_init()) + if (usb_board_init()) return -1; #endif - memset (&gohci, 0, sizeof (ohci_t)); + memset(&gohci, 0, sizeof(ohci_t)); /* align the storage */ if ((__u32)&ghcca[0] & 0xff) { @@ -1851,7 +1924,7 @@ int usb_lowlevel_init(void) } ptd = gtd; gohci.hcca = phcca; - memset (phcca, 0, sizeof (struct ohci_hcca)); + memset(phcca, 0, sizeof(struct ohci_hcca)); gohci.disabled = 1; gohci.sleeping = 0; @@ -1879,9 +1952,9 @@ int usb_lowlevel_init(void) gohci.flags = 0; gohci.slot_name = CFG_USB_OHCI_SLOT_NAME; - if (hc_reset (&gohci) < 0) { - hc_release_ohci (&gohci); - err ("can't reset usb-%s", gohci.slot_name); + if (hc_reset(&gohci) < 0) { + hc_release_ohci(&gohci); + err("can't reset usb-%s", gohci.slot_name); #ifdef CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ usb_board_init_fail(); @@ -1894,12 +1967,9 @@ int usb_lowlevel_init(void) return -1; } - /* FIXME this is a second HC reset; why?? */ - /* writel(gohci.hc_control = OHCI_USB_RESET, &gohci.regs->control); - wait_ms(10); */ - if (hc_start (&gohci) < 0) { - err ("can't start usb-%s", gohci.slot_name); - hc_release_ohci (&gohci); + if (hc_start(&gohci) < 0) { + err("can't start usb-%s", gohci.slot_name); + hc_release_ohci(&gohci); /* Initialization failed */ #ifdef CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ @@ -1914,7 +1984,7 @@ int usb_lowlevel_init(void) } #ifdef DEBUG - ohci_dump (&gohci, 1); + ohci_dump(&gohci, 1); #else wait_ms(1); #endif @@ -1930,17 +2000,17 @@ int usb_lowlevel_stop(void) return 0; /* TODO release any interrupts, etc. */ /* call hc_release_ohci() here ? */ - hc_reset (&gohci); + hc_reset(&gohci); #ifdef CFG_USB_OHCI_BOARD_INIT /* board dependant cleanup */ - if(usb_board_stop()) + if (usb_board_stop()) return -1; #endif #ifdef CFG_USB_OHCI_CPU_INIT /* cpu dependant cleanup */ - if(usb_cpu_stop()) + if (usb_cpu_stop()) return -1; #endif /* This driver is no longer initialised. It needs a new low-level diff --git a/drivers/usb/usb_ohci.h b/drivers/usb/usb_ohci.h index 7a04bf5..50aaafd 100644 --- a/drivers/usb/usb_ohci.h +++ b/drivers/usb/usb_ohci.h @@ -38,6 +38,41 @@ static int cc_to_error[16] = { /* Not Access */ -1 }; +static const char *cc_to_string[16] = { + "No Error", + "CRC: Last data packet from endpoint contained a CRC error.", + "BITSTUFFING: Last data packet from endpoint contained a bit " \ + "stuffing violation", + "DATATOGGLEMISMATCH: Last packet from endpoint had data toggle PID\n" \ + "that did not match the expected value.", + "STALL: TD was moved to the Done Queue because the endpoint returned" \ + " a STALL PID", + "DEVICENOTRESPONDING: Device did not respond to token (IN) or did\n" \ + "not provide a handshake (OUT)", + "PIDCHECKFAILURE: Check bits on PID from endpoint failed on data PID\n"\ + "(IN) or handshake (OUT)", + "UNEXPECTEDPID: Receive PID was not valid when encountered or PID\n" \ + "value is not defined.", + "DATAOVERRUN: The amount of data returned by the endpoint exceeded\n" \ + "either the size of the maximum data packet allowed\n" \ + "from the endpoint (found in MaximumPacketSize field\n" \ + "of ED) or the remaining buffer size.", + "DATAUNDERRUN: The endpoint returned less than MaximumPacketSize\n" \ + "and that amount was not sufficient to fill the\n" \ + "specified buffer", + "reserved1", + "reserved2", + "BUFFEROVERRUN: During an IN, HC received data from endpoint faster\n" \ + "than it could be written to system memory", + "BUFFERUNDERRUN: During an OUT, HC could not retrieve data from\n" \ + "system memory fast enough to keep up with data USB " \ + "data rate.", + "NOT ACCESSED: This code is set by software before the TD is placed" \ + "on a list to be processed by the HC.(1)", + "NOT ACCESSED: This code is set by software before the TD is placed" \ + "on a list to be processed by the HC.(2)", +}; + /* ED States */ #define ED_NEW 0x00 |