X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=common%2Fusb.c;h=87fca70706519353561722fdb91a4eee8701085f;hb=20dde48bcadd856c86a91d5463831a10be46db83;hp=be81aaf0bd7061f5606e1c550093ad7b08be2d56;hpb=6f5794a6f78b313231256958fd73673c6aacc116;p=u-boot diff --git a/common/usb.c b/common/usb.c index be81aaf0bd..87fca70706 100644 --- a/common/usb.c +++ b/common/usb.c @@ -58,7 +58,7 @@ #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...) #endif @@ -80,17 +80,19 @@ void usb_scan_devices(void); int usb_hub_probe(struct usb_device *dev, int ifnum); void usb_hub_reset(void); - +static int hub_port_reset(struct usb_device *dev, int port, + unsigned short *portstat); /*********************************************************************** * wait_ms */ -void __inline__ wait_ms(unsigned long ms) +inline void wait_ms(unsigned long ms) { while (ms-- > 0) udelay(1000); } + /*************************************************************************** * Init USB Device */ @@ -195,15 +197,16 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe, if (timeout == 0) return (int)size; - while (timeout--) { - if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC)) - break; - wait_ms(1); - } - if (dev->status == 0) - return dev->act_len; - else + if (dev->status != 0) { + /* + * Let's wait a while for the timeout to elapse. + * It has no real use, but it keeps the interface happy. + */ + wait_ms(timeout); return -1; + } + + return dev->act_len; } /*------------------------------------------------------------------- @@ -243,9 +246,9 @@ int usb_maxpacket(struct usb_device *dev, unsigned long pipe) { /* direction is out -> use emaxpacket out */ if ((pipe & USB_DIR_IN) == 0) - return(dev->epmaxpacketout[((pipe>>15) & 0xf)]); + return dev->epmaxpacketout[((pipe>>15) & 0xf)]; else - return(dev->epmaxpacketin[((pipe>>15) & 0xf)]); + return dev->epmaxpacketin[((pipe>>15) & 0xf)]; } /* The routine usb_set_maxpacket_ep() is extracted from the loop of routine @@ -267,7 +270,7 @@ usb_set_maxpacket_ep(struct usb_device *dev, struct usb_endpoint_descriptor *ep) USB_ENDPOINT_XFER_CONTROL) { /* Control => bidirectional */ dev->epmaxpacketout[b] = ep->wMaxPacketSize; - dev->epmaxpacketin [b] = ep->wMaxPacketSize; + dev->epmaxpacketin[b] = ep->wMaxPacketSize; USB_PRINTF("##Control EP epmaxpacketout/in[%d] = %d\n", b, dev->epmaxpacketin[b]); } else { @@ -441,14 +444,14 @@ int usb_get_configuration_no(struct usb_device *dev, config = (struct usb_config_descriptor *)&buffer[0]; - result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 8); - if (result < 8) { + result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9); + if (result < 9) { if (result < 0) printf("unable to get descriptor, error %lX\n", dev->status); else printf("config descriptor too short " \ - "(expected %i, got %i)\n", 8, result); + "(expected %i, got %i)\n", 9, result); return -1; } tmp = le16_to_cpu(config->wTotalLength); @@ -678,7 +681,7 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size) err = usb_string_sub(dev, 0, 0, tbuf); if (err < 0) { USB_PRINTF("error getting string descriptor 0 " \ - "(error=%x)\n", dev->status); + "(error=%lx)\n", dev->status); return -1; } else if (tbuf[0] < 4) { USB_PRINTF("string descriptor 0 too short\n"); @@ -765,23 +768,35 @@ int usb_new_device(struct usb_device *dev) int tmp; unsigned char tmpbuf[USB_BUFSIZ]; - dev->descriptor.bMaxPacketSize0 = 8; /* Start off at 8 bytes */ - dev->maxpacketsize = 0; /* Default to 8 byte max packet size */ - dev->epmaxpacketin [0] = 8; - dev->epmaxpacketout[0] = 8; - /* We still haven't set the Address yet */ addr = dev->devnum; dev->devnum = 0; -#undef NEW_INIT_SEQ -#ifdef NEW_INIT_SEQ - /* this is a Windows scheme of initialization sequence, with double - * reset of the device. Some equipment is said to work only with such - * init sequence; this patch is based on the work by Alan Stern: - * http://sourceforge.net/mailarchive/forum.php?thread_id=5729457&forum_id=5398 +#ifdef CONFIG_LEGACY_USB_INIT_SEQ + /* this is the old and known way of initializing devices, it is + * different than what Windows and Linux are doing. Windows and Linux + * both retrieve 64 bytes while reading the device descriptor + * Several USB stick devices report ERR: CTL_TIMEOUT, caused by an + * invalid header while reading 8 bytes as device descriptor. */ + dev->descriptor.bMaxPacketSize0 = 8; /* Start off at 8 bytes */ + dev->maxpacketsize = PACKET_SIZE_8; + dev->epmaxpacketin[0] = 8; + dev->epmaxpacketout[0] = 8; + + err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor, 8); + if (err < 8) { + printf("\n USB device not responding, " \ + "giving up (status=%lX)\n", dev->status); + return 1; + } +#else + /* This is a Windows scheme of initialization sequence, with double + * reset of the device (Linux uses the same sequence) + * Some equipment is said to work only with such init sequence; this + * patch is based on the work by Alan Stern: + * http://sourceforge.net/mailarchive/forum.php? + * thread_id=5729457&forum_id=5398 */ - int j; struct usb_device_descriptor *desc; int port = -1; struct usb_device *parent = dev->parent; @@ -790,21 +805,26 @@ int usb_new_device(struct usb_device *dev) /* send 64-byte GET-DEVICE-DESCRIPTOR request. Since the descriptor is * only 18 bytes long, this will terminate with a short packet. But if * the maxpacket size is 8 or 16 the device may be waiting to transmit - * some more. */ + * some more, or keeps on retransmitting the 8 byte header. */ desc = (struct usb_device_descriptor *)tmpbuf; - desc->bMaxPacketSize0 = 0; - for (j = 0; j < 3; ++j) { - err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64); - if (err < 0) { - USB_PRINTF("usb_new_device: 64 byte descr\n"); - break; - } + dev->descriptor.bMaxPacketSize0 = 64; /* Start off at 64 bytes */ + /* Default to 64 byte max packet size */ + dev->maxpacketsize = PACKET_SIZE_64; + dev->epmaxpacketin[0] = 64; + dev->epmaxpacketout[0] = 64; + + err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64); + if (err < 0) { + USB_PRINTF("usb_new_device: usb_get_descriptor() failed\n"); + return 1; } + dev->descriptor.bMaxPacketSize0 = desc->bMaxPacketSize0; /* find the port number we're at */ if (parent) { + int j; for (j = 0; j < parent->maxchild; j++) { if (parent->children[j] == dev) { @@ -824,23 +844,23 @@ int usb_new_device(struct usb_device *dev) return 1; } } -#else - /* and this is the old and known way of initializing devices */ - err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor, 8); - if (err < 8) { - printf("\n USB device not responding, " \ - "giving up (status=%lX)\n", dev->status); - return 1; - } #endif - dev->epmaxpacketin [0] = dev->descriptor.bMaxPacketSize0; + dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0; dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0; switch (dev->descriptor.bMaxPacketSize0) { - case 8: dev->maxpacketsize = 0; break; - case 16: dev->maxpacketsize = 1; break; - case 32: dev->maxpacketsize = 2; break; - case 64: dev->maxpacketsize = 3; break; + case 8: + dev->maxpacketsize = PACKET_SIZE_8; + break; + case 16: + dev->maxpacketsize = PACKET_SIZE_16; + break; + case 32: + dev->maxpacketsize = PACKET_SIZE_32; + break; + case 64: + dev->maxpacketsize = PACKET_SIZE_64; + break; } dev->devnum = addr; @@ -919,8 +939,10 @@ void usb_scan_devices(void) dev_index = 0; /* device 0 is always present (root hub, so let it analyze) */ dev = usb_alloc_new_device(); - usb_new_device(dev); - printf("%d USB Device(s) found\n", dev_index); + if (usb_new_device(dev)) + printf("No USB Device found\n"); + else + printf("%d USB Device(s) found\n", dev_index); /* insert "driver" if possible */ #ifdef CONFIG_USB_KEYBOARD drv_usb_kbd_init(); @@ -937,7 +959,7 @@ 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...) #endif @@ -1021,6 +1043,16 @@ struct usb_hub_device *usb_hub_allocate(void) #define MAX_TRIES 5 +static inline char *portspeed(int portstatus) +{ + if (portstatus & (1 << USB_PORT_FEAT_HIGHSPEED)) + return "480 Mb/s"; + else if (portstatus & (1 << USB_PORT_FEAT_LOWSPEED)) + return "1.5 Mb/s"; + else + return "12 Mb/s"; +} + static int hub_port_reset(struct usb_device *dev, int port, unsigned short *portstat) { @@ -1041,10 +1073,11 @@ static int hub_port_reset(struct usb_device *dev, int port, } 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<slow = (portstatus & USB_PORT_STAT_LOW_SPEED) ? 1 : 0; + + if (portstatus & USB_PORT_STAT_HIGH_SPEED) + usb->speed = USB_SPEED_HIGH; + else if (portstatus & USB_PORT_STAT_LOW_SPEED) + usb->speed = USB_SPEED_LOW; + else + usb->speed = USB_SPEED_FULL; dev->children[port] = usb; usb->parent = dev;