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-rw-r--r--common/usb.c56
-rw-r--r--drivers/usb/usb_ohci.c14
-rw-r--r--include/usb.h16
3 files changed, 47 insertions, 39 deletions
diff --git a/common/usb.c b/common/usb.c
index db65d7d..7ab5df6 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -196,15 +196,16 @@ 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;
}
/*-------------------------------------------------------------------
@@ -442,14 +443,14 @@ 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);
@@ -777,7 +778,7 @@ int usb_new_device(struct usb_device *dev)
* 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 = 0; /* Default to 8 byte max packet size */
+ dev->maxpacketsize = PACKET_SIZE_8;
dev->epmaxpacketin [0] = 8;
dev->epmaxpacketout[0] = 8;
@@ -788,15 +789,12 @@ int usb_new_device(struct usb_device *dev)
return 1;
}
#else
- /* this is a Windows scheme of initialization sequence, with double
- * reset of the device (Linux uses the same sequence, but without double
- * reset. This double reset is not considered harmful and matches the
- * Windows behaviour)
+ /* 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;
@@ -809,20 +807,22 @@ int usb_new_device(struct usb_device *dev)
desc = (struct usb_device_descriptor *)tmpbuf;
dev->descriptor.bMaxPacketSize0 = 64; /* Start off at 64 bytes */
- dev->maxpacketsize = 64; /* Default to 64 byte max packet size */
+ /* Default to 64 byte max packet size */
+ dev->maxpacketsize = PACKET_SIZE_64;
dev->epmaxpacketin [0] = 64;
dev->epmaxpacketout[0] = 64;
- 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;
- }
+
+ 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) {
@@ -847,10 +847,10 @@ 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 = 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;
diff --git a/drivers/usb/usb_ohci.c b/drivers/usb/usb_ohci.c
index 76c6390..660b4b3 100644
--- a/drivers/usb/usb_ohci.c
+++ b/drivers/usb/usb_ohci.c
@@ -856,8 +856,7 @@ static void td_fill(ohci_t *ohci, unsigned int info,
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_pipebulk(urb_priv->pipe) && usb_pipeout(urb_priv->pipe)) {
for (i = 0; i < len; i++)
printf("td->data[%d] %#2x ", i, ((unsigned char *)td->data)[i]);
printf("\n");
@@ -983,7 +982,7 @@ static void dl_transfer_length(td_t *td)
tdBE = m32_swap(td->hwBE);
tdCBP = m32_swap(td->hwCBP);
- if (!(usb_pipetype(lurb_priv->pipe) == PIPE_CONTROL &&
+ if (!(usb_pipecontrol(lurb_priv->pipe) &&
((td->index == 0) || (td->index == lurb_priv->length - 1)))) {
if (tdBE != 0) {
if (td->hwCBP == 0)
@@ -1096,8 +1095,7 @@ static int takeback_td(ohci_t *ohci, td_t *td_list)
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)) {
+ if (ed->state != ED_NEW && (!usb_pipeint(lurb_priv->pipe))) {
edHeadP = m32_swap(ed->hwHeadP) & 0xfffffff0;
edTailP = m32_swap(ed->hwTailP);
@@ -1287,7 +1285,7 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len,
#else
wait_ms(1);
#endif
- if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) {
+ if (usb_pipeint(pipe)) {
info("Root-Hub submit IRQ: NOT implemented");
return 0;
}
@@ -1538,7 +1536,7 @@ 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_pipebulk(pipe))
timeout = BULK_TO;
else
timeout = 100;
@@ -1591,7 +1589,7 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
#endif
/* free TDs in urb_priv */
- if (usb_pipetype(pipe) != PIPE_INTERRUPT)
+ if (!usb_pipeint(pipe))
urb_free_priv(urb);
return 0;
}
diff --git a/include/usb.h b/include/usb.h
index e68e98e..9a2e72c 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -129,6 +129,13 @@ struct usb_config_descriptor {
struct usb_interface_descriptor if_desc[USB_MAXINTERFACES];
} __attribute__ ((packed));
+enum {
+ /* Maximum packet size; encoded as 0,1,2,3 = 8,16,32,64 */
+ PACKET_SIZE_8 = 0,
+ PACKET_SIZE_16 = 1,
+ PACKET_SIZE_32 = 2,
+ PACKET_SIZE_64 = 3,
+};
struct usb_device {
int devnum; /* Device number on USB bus */
@@ -137,9 +144,12 @@ struct usb_device {
char prod[32]; /* product */
char serial[32]; /* serial number */
- int maxpacketsize; /* Maximum packet size; encoded as 0,1,2,3 = 8,16,32,64 */
- unsigned int toggle[2]; /* one bit for each endpoint ([0] = IN, [1] = OUT) */
- unsigned int halted[2]; /* endpoint halts; one bit per endpoint # & direction; */
+ /* Maximum packet size; one of: PACKET_SIZE_* */
+ int maxpacketsize;
+ /* one bit for each endpoint ([0] = IN, [1] = OUT) */
+ unsigned int toggle[2];
+ /* endpoint halts; one bit per endpoint # & direction; */
+ unsigned int halted[2];
/* [0] = IN, [1] = OUT */
int epmaxpacketin[16]; /* INput endpoint specific maximums */
int epmaxpacketout[16]; /* OUTput endpoint specific maximums */
generated by cgit v1.1 at 2024-11-10 14:51:18 +0000