#include <common.h>
#include <command.h>
#include <asm/processor.h>
+#include <linux/compiler.h>
#include <linux/ctype.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
#include <asm/4xx_pci.h>
#endif
-#ifdef DEBUG
-#define USB_DEBUG 1
-#define USB_HUB_DEBUG 1
-#else
-#define USB_DEBUG 0
-#define USB_HUB_DEBUG 0
-#endif
-
-#define USB_PRINTF(fmt, args...) debug_cond(USB_DEBUG, fmt, ##args)
-#define USB_HUB_PRINTF(fmt, args...) debug_cond(USB_HUB_DEBUG, fmt, ##args)
-
#define USB_BUFSIZ 512
static struct usb_device usb_dev[USB_MAX_DEVICE];
static int dev_index;
-static int running;
static int asynch_allowed;
-static struct devrequest setup_packet;
char usb_started; /* flag for the started/stopped USB status */
-/**********************************************************************
- * some forward declerations...
- */
-static void usb_scan_devices(void);
-
-static int usb_hub_probe(struct usb_device *dev, int ifnum);
-static void usb_hub_reset(void);
-static int hub_port_reset(struct usb_device *dev, int port,
- unsigned short *portstat);
-
-/***********************************************************************
- * wait_ms
- */
-
-inline void wait_ms(unsigned long ms)
-{
- while (ms-- > 0)
- udelay(1000);
-}
+#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT
+#define CONFIG_USB_MAX_CONTROLLER_COUNT 1
+#endif
/***************************************************************************
* Init USB Device
*/
-
int usb_init(void)
{
- int result;
+ void *ctrl;
+ struct usb_device *dev;
+ int i, start_index = 0;
- running = 0;
dev_index = 0;
asynch_allowed = 1;
usb_hub_reset();
+
+ /* first make all devices unknown */
+ for (i = 0; i < USB_MAX_DEVICE; i++) {
+ memset(&usb_dev[i], 0, sizeof(struct usb_device));
+ usb_dev[i].devnum = -1;
+ }
+
/* 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) {
- printf("scanning bus for devices... ");
- running = 1;
- usb_scan_devices();
+ for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) {
+ /* init low_level USB */
+ printf("USB%d: ", i);
+ if (usb_lowlevel_init(i, &ctrl)) {
+ puts("lowlevel init failed\n");
+ continue;
+ }
+ /*
+ * lowlevel init is OK, now scan the bus for devices
+ * i.e. search HUBs and configure them
+ */
+ start_index = dev_index;
+ printf("scanning bus %d for devices... ", i);
+ dev = usb_alloc_new_device(ctrl);
+ /*
+ * device 0 is always present
+ * (root hub, so let it analyze)
+ */
+ if (dev)
+ usb_new_device(dev);
+
+ if (start_index == dev_index)
+ puts("No USB Device found\n");
+ else
+ printf("%d USB Device(s) found\n",
+ dev_index - start_index);
+
usb_started = 1;
- return 0;
- } else {
- printf("Error, couldn't init Lowlevel part\n");
- usb_started = 0;
+ }
+
+ debug("scan end\n");
+ /* if we were not able to find at least one working bus, bail out */
+ if (!usb_started) {
+ puts("USB error: all controllers failed lowlevel init\n");
return -1;
}
+
+ return 0;
}
/******************************************************************************
*/
int usb_stop(void)
{
- int res = 0;
+ int i;
if (usb_started) {
asynch_allowed = 1;
usb_started = 0;
usb_hub_reset();
- res = usb_lowlevel_stop();
+
+ for (i = 0; i < CONFIG_USB_MAX_CONTROLLER_COUNT; i++) {
+ if (usb_lowlevel_stop(i))
+ printf("failed to stop USB controller %d\n", i);
+ }
}
- return res;
+
+ return 0;
}
/*
unsigned short value, unsigned short index,
void *data, unsigned short size, int timeout)
{
+ ALLOC_CACHE_ALIGN_BUFFER(struct devrequest, setup_packet, 1);
+
if ((timeout == 0) && (!asynch_allowed)) {
/* request for a asynch control pipe is not allowed */
return -1;
}
/* set setup command */
- setup_packet.requesttype = requesttype;
- setup_packet.request = request;
- 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);
+ setup_packet->requesttype = requesttype;
+ setup_packet->request = request;
+ setup_packet->value = cpu_to_le16(value);
+ setup_packet->index = cpu_to_le16(index);
+ setup_packet->length = cpu_to_le16(size);
+ debug("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 (submit_control_msg(dev, pipe, data, size, setup_packet) < 0)
+ return -1;
if (timeout == 0)
return (int)size;
while (timeout--) {
if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
break;
- wait_ms(1);
+ mdelay(1);
}
if (dev->status)
return -1;
if (len < 0)
return -1;
dev->status = USB_ST_NOT_PROC; /*not yet processed */
- submit_bulk_msg(dev, pipe, data, len);
+ if (submit_bulk_msg(dev, pipe, data, len) < 0)
+ return -1;
while (timeout--) {
if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
break;
- wait_ms(1);
+ mdelay(1);
}
*actual_length = dev->act_len;
if (dev->status == 0)
*
* NOTE: Similar behaviour was observed with GCC4.6 on ARMv5.
*/
-static void __attribute__((noinline))
+static void noinline
usb_set_maxpacket_ep(struct usb_device *dev, int if_idx, int ep_idx)
{
int b;
/* Control => bidirectional */
dev->epmaxpacketout[b] = ep_wMaxPacketSize;
dev->epmaxpacketin[b] = ep_wMaxPacketSize;
- USB_PRINTF("##Control EP epmaxpacketout/in[%d] = %d\n",
- b, dev->epmaxpacketin[b]);
+ debug("##Control EP epmaxpacketout/in[%d] = %d\n",
+ b, dev->epmaxpacketin[b]);
} else {
if ((ep->bEndpointAddress & 0x80) == 0) {
/* OUT Endpoint */
if (ep_wMaxPacketSize > dev->epmaxpacketout[b]) {
dev->epmaxpacketout[b] = ep_wMaxPacketSize;
- USB_PRINTF("##EP epmaxpacketout[%d] = %d\n",
- b, dev->epmaxpacketout[b]);
+ debug("##EP epmaxpacketout[%d] = %d\n",
+ b, dev->epmaxpacketout[b]);
}
} else {
/* IN Endpoint */
if (ep_wMaxPacketSize > dev->epmaxpacketin[b]) {
dev->epmaxpacketin[b] = ep_wMaxPacketSize;
- USB_PRINTF("##EP epmaxpacketin[%d] = %d\n",
- b, dev->epmaxpacketin[b]);
+ debug("##EP epmaxpacketin[%d] = %d\n",
+ b, dev->epmaxpacketin[b]);
}
} /* if out */
} /* if control */
{
struct usb_descriptor_header *head;
int index, ifno, epno, curr_if_num;
- int i;
u16 ep_wMaxPacketSize;
+ struct usb_interface *if_desc = NULL;
ifno = -1;
epno = -1;
&buffer[index])->bInterfaceNumber != curr_if_num) {
/* this is a new interface, copy new desc */
ifno = dev->config.no_of_if;
+ if_desc = &dev->config.if_desc[ifno];
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;
+ memcpy(if_desc, &buffer[index], buffer[index]);
+ if_desc->no_of_ep = 0;
+ if_desc->num_altsetting = 1;
curr_if_num =
- dev->config.if_desc[ifno].desc.bInterfaceNumber;
+ if_desc->desc.bInterfaceNumber;
} else {
/* found alternate setting for the interface */
- dev->config.if_desc[ifno].num_altsetting++;
+ if (ifno >= 0) {
+ if_desc = &dev->config.if_desc[ifno];
+ if_desc->num_altsetting++;
+ }
}
break;
case USB_DT_ENDPOINT:
epno = dev->config.if_desc[ifno].no_of_ep;
+ if_desc = &dev->config.if_desc[ifno];
/* found an endpoint */
- dev->config.if_desc[ifno].no_of_ep++;
- memcpy(&dev->config.if_desc[ifno].ep_desc[epno],
+ if_desc->no_of_ep++;
+ memcpy(&if_desc->ep_desc[epno],
&buffer[index], buffer[index]);
ep_wMaxPacketSize = get_unaligned(&dev->config.\
if_desc[ifno].\
if_desc[ifno].\
ep_desc[epno].\
wMaxPacketSize);
- USB_PRINTF("if %d, ep %d\n", ifno, epno);
+ debug("if %d, ep %d\n", ifno, epno);
+ break;
+ case USB_DT_SS_ENDPOINT_COMP:
+ if_desc = &dev->config.if_desc[ifno];
+ memcpy(&if_desc->ss_ep_comp_desc[epno],
+ &buffer[index], buffer[index]);
break;
default:
if (head->bLength == 0)
return 1;
- USB_PRINTF("unknown Description Type : %x\n",
- head->bDescriptorType);
+ debug("unknown Description Type : %x\n",
+ head->bDescriptorType);
+#ifdef DEBUG
{
-#ifdef USB_DEBUG
unsigned char *ch = (unsigned char *)head;
-#endif
+ int i;
+
for (i = 0; i < head->bLength; i++)
- USB_PRINTF("%02X ", *ch++);
- USB_PRINTF("\n\n\n");
+ debug("%02X ", *ch++);
+ debug("\n\n\n");
}
+#endif
break;
}
index += head->bLength;
{
int result;
unsigned int tmp;
- struct usb_configuration_descriptor *config;
+ struct usb_config_descriptor *config;
- config = (struct usb_configuration_descriptor *)&buffer[0];
+ config = (struct usb_config_descriptor *)&buffer[0];
result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9);
if (result < 9) {
if (result < 0)
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);
+ 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);
+ debug("get_conf_no %d Result %d, wLength %d\n", cfgno, result, tmp);
return result;
}
{
int res;
- USB_PRINTF("set address %d\n", dev->devnum);
+ debug("set address %d\n", dev->devnum);
res = usb_control_msg(dev, usb_snddefctrl(dev),
USB_REQ_SET_ADDRESS, 0,
(dev->devnum), 0,
static int usb_set_configuration(struct usb_device *dev, int configuration)
{
int res;
- USB_PRINTF("set configuration %d\n", configuration);
+ debug("set configuration %d\n", configuration);
/* set setup command */
res = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
USB_REQ_SET_CONFIGURATION, 0,
*/
int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
{
- unsigned char mybuf[USB_BUFSIZ];
+ ALLOC_CACHE_ALIGN_BUFFER(unsigned char, mybuf, USB_BUFSIZ);
unsigned char *tbuf;
int err;
unsigned int u, idx;
if (!dev->have_langid) {
err = usb_string_sub(dev, 0, 0, tbuf);
if (err < 0) {
- USB_PRINTF("error getting string descriptor 0 " \
- "(error=%lx)\n", dev->status);
+ debug("error getting string descriptor 0 " \
+ "(error=%lx)\n", dev->status);
return -1;
} else if (tbuf[0] < 4) {
- USB_PRINTF("string descriptor 0 too short\n");
+ debug("string descriptor 0 too short\n");
return -1;
} else {
dev->have_langid = -1;
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);
+ debug("USB device number %d default " \
+ "language ID 0x%x\n",
+ dev->devnum, dev->string_langid);
}
}
return &usb_dev[index];
}
-
/* returns a pointer of a new device structure or NULL, if
* no device struct is available
*/
-static struct usb_device *usb_alloc_new_device(void)
+struct usb_device *usb_alloc_new_device(void *controller)
{
int i;
- USB_PRINTF("New Device %d\n", dev_index);
+ debug("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;
for (i = 0; i < USB_MAXCHILDREN; i++)
usb_dev[dev_index].children[i] = NULL;
usb_dev[dev_index].parent = NULL;
+ usb_dev[dev_index].controller = controller;
dev_index++;
return &usb_dev[dev_index - 1];
}
+/*
+ * Free the newly created device node.
+ * Called in error cases where configuring a newly attached
+ * device fails for some reason.
+ */
+void usb_free_device(void)
+{
+ dev_index--;
+ debug("Freeing device node: %d\n", dev_index);
+ memset(&usb_dev[dev_index], 0, sizeof(struct usb_device));
+ usb_dev[dev_index].devnum = -1;
+}
/*
* By the time we get here, the device has gotten a new device ID
*
* Returns 0 for success, != 0 for error.
*/
-static int usb_new_device(struct usb_device *dev)
+int usb_new_device(struct usb_device *dev)
{
int addr, err;
int tmp;
- unsigned char tmpbuf[USB_BUFSIZ];
+ ALLOC_CACHE_ALIGN_BUFFER(unsigned char, tmpbuf, USB_BUFSIZ);
/* We still haven't set the Address yet */
addr = dev->devnum;
dev->epmaxpacketin[0] = 8;
dev->epmaxpacketout[0] = 8;
- err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, &dev->descriptor, 8);
+ err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, tmpbuf, 8);
if (err < 8) {
printf("\n USB device not responding, " \
"giving up (status=%lX)\n", dev->status);
return 1;
}
+ memcpy(&dev->descriptor, tmpbuf, 8);
#else
/* This is a Windows scheme of initialization sequence, with double
* reset of the device (Linux uses the same sequence)
err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, 64);
if (err < 0) {
- USB_PRINTF("usb_new_device: usb_get_descriptor() failed\n");
+ debug("usb_new_device: usb_get_descriptor() failed\n");
return 1;
}
dev->descriptor.bMaxPacketSize0 = desc->bMaxPacketSize0;
+ /*
+ * Fetch the device class, driver can use this info
+ * to differentiate between HUB and DEVICE.
+ */
+ dev->descriptor.bDeviceClass = desc->bDeviceClass;
/* find the port number we're at */
if (parent) {
return 1;
}
- wait_ms(10); /* Let the SET_ADDRESS settle */
+ mdelay(10); /* Let the SET_ADDRESS settle */
tmp = sizeof(dev->descriptor);
err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
- &dev->descriptor, sizeof(dev->descriptor));
+ tmpbuf, sizeof(dev->descriptor));
if (err < tmp) {
if (err < 0)
printf("unable to get device descriptor (error=%d)\n",
"(expected %i, got %i)\n", tmp, err);
return 1;
}
+ memcpy(&dev->descriptor, tmpbuf, sizeof(dev->descriptor));
/* correct le values */
le16_to_cpus(&dev->descriptor.bcdUSB);
le16_to_cpus(&dev->descriptor.idVendor);
le16_to_cpus(&dev->descriptor.idProduct);
le16_to_cpus(&dev->descriptor.bcdDevice);
/* only support for one config for now */
- usb_get_configuration_no(dev, &tmpbuf[0], 0);
- usb_parse_config(dev, &tmpbuf[0], 0);
+ err = usb_get_configuration_no(dev, tmpbuf, 0);
+ if (err < 0) {
+ printf("usb_new_device: Cannot read configuration, " \
+ "skipping device %04x:%04x\n",
+ dev->descriptor.idVendor, dev->descriptor.idProduct);
+ return -1;
+ }
+ usb_parse_config(dev, tmpbuf, 0);
usb_set_maxpacket(dev);
/* we set the default configuration here */
if (usb_set_configuration(dev, dev->config.desc.bConfigurationValue)) {
"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);
+ debug("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n",
+ 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.iSerialNumber)
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);
+ debug("Manufacturer %s\n", dev->mf);
+ debug("Product %s\n", dev->prod);
+ debug("SerialNumber %s\n", dev->serial);
/* now prode if the device is a hub */
usb_hub_probe(dev, 0);
return 0;
}
-/* build device Tree */
-static void usb_scan_devices(void)
-{
- int i;
- 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));
- usb_dev[i].devnum = -1;
- }
- dev_index = 0;
- /* device 0 is always present (root hub, so let it analyze) */
- dev = usb_alloc_new_device();
- 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();
-#endif
- USB_PRINTF("scan end\n");
-}
-
-
-/****************************************************************************
- * HUB "Driver"
- * Probes device for being a hub and configurate it
- */
-
-static struct usb_hub_device hub_dev[USB_MAX_HUB];
-static int usb_hub_index;
-
-
-static int usb_get_hub_descriptor(struct usb_device *dev, void *data, int size)
-{
- return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
- USB_REQ_GET_DESCRIPTOR, USB_DIR_IN | USB_RT_HUB,
- USB_DT_HUB << 8, 0, data, size, USB_CNTL_TIMEOUT);
-}
-
-static 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);
-}
-
-static 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);
-}
-
-static 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);
-}
-
-static int usb_get_hub_status(struct usb_device *dev, void *data)
-{
- return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
- USB_REQ_GET_STATUS, USB_DIR_IN | USB_RT_HUB, 0, 0,
- data, sizeof(struct usb_hub_status), USB_CNTL_TIMEOUT);
-}
-
-static int usb_get_port_status(struct usb_device *dev, int port, void *data)
-{
- return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
- USB_REQ_GET_STATUS, USB_DIR_IN | USB_RT_PORT, 0, port,
- data, sizeof(struct usb_hub_status), USB_CNTL_TIMEOUT);
-}
-
-
-static void usb_hub_power_on(struct usb_hub_device *hub)
-{
- int i;
- struct usb_device *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);
- wait_ms(hub->desc.bPwrOn2PwrGood * 2);
- }
-}
-
-static void usb_hub_reset(void)
-{
- usb_hub_index = 0;
-}
-
-static struct usb_hub_device *usb_hub_allocate(void)
-{
- if (usb_hub_index < USB_MAX_HUB)
- return &hub_dev[usb_hub_index++];
-
- printf("ERROR: USB_MAX_HUB (%d) reached\n", USB_MAX_HUB);
- return NULL;
-}
-
-#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)
-{
- int tries;
- 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++) {
-
- 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);
- 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,
- portspeed(portstatus));
-
- 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)
- 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);
- USB_HUB_PRINTF("Maybe the USB cable is bad?\n");
- return -1;
- }
-
- usb_clear_port_feature(dev, port + 1, USB_PORT_FEAT_C_RESET);
- *portstat = portstatus;
- return 0;
-}
-
-
-void usb_hub_port_connect_change(struct usb_device *dev, int port)
-{
- struct usb_device *usb;
- struct usb_port_status portsts;
- unsigned short portstatus;
-
- /* Check status */
- 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);
- USB_HUB_PRINTF("portstatus %x, change %x, %s\n",
- portstatus,
- le16_to_cpu(portsts.wPortChange),
- portspeed(portstatus));
-
- /* 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])) {
- USB_HUB_PRINTF("usb_disconnect(&hub->children[port]);\n");
- /* Return now if nothing is connected */
- if (!(portstatus & USB_PORT_STAT_CONNECTION))
- return;
- }
- wait_ms(200);
-
- /* Reset the port */
- if (hub_port_reset(dev, port, &portstatus) < 0) {
- printf("cannot reset port %i!?\n", port + 1);
- return;
- }
-
- wait_ms(200);
-
- /* Allocate a new device struct for it */
- usb = usb_alloc_new_device();
-
- 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;
- usb->portnr = port + 1;
- /* Run it through the hoops (find a driver, etc) */
- if (usb_new_device(usb)) {
- /* Woops, disable the port */
- USB_HUB_PRINTF("hub: disabling port %d\n", port + 1);
- usb_clear_port_feature(dev, port + 1, USB_PORT_FEAT_ENABLE);
- }
-}
-
-
-static int usb_hub_configure(struct usb_device *dev)
-{
- int i;
- unsigned char buffer[USB_BUFSIZ], *bitmap;
- struct usb_hub_descriptor *descriptor;
- struct usb_hub_device *hub;
-#ifdef USB_HUB_DEBUG
- struct usb_hub_status *hubsts;
-#endif
-
- /* "allocate" Hub device */
- hub = usb_hub_allocate();
- if (hub == NULL)
- return -1;
- 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);
- return -1;
- }
- descriptor = (struct usb_hub_descriptor *)buffer;
-
- /* 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);
- 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);
- return -1;
- }
- memcpy((unsigned char *)&hub->desc, buffer, descriptor->bLength);
- /* adjust 16bit values */
- hub->desc.wHubCharacteristics =
- le16_to_cpu(descriptor->wHubCharacteristics);
- /* set the bitmap */
- 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.PortPowerCtrlMask[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;
- }
-
- if (hub->desc.wHubCharacteristics & HUB_CHAR_COMPOUND)
- USB_HUB_PRINTF("part of a compound device\n");
- else
- 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;
- }
-
- 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" : "");
-
- if (sizeof(struct usb_hub_status) > USB_BUFSIZ) {
- 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);
- return -1;
- }
-
-#ifdef USB_HUB_DEBUG
- hubsts = (struct usb_hub_status *)buffer;
-#endif
- USB_HUB_PRINTF("get_hub_status returned status %X, change %X\n",
- 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");
- USB_HUB_PRINTF("%sover-current condition exists\n",
- (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;
-
- if (usb_get_port_status(dev, i + 1, &portsts) < 0) {
- 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);
-
- 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 */
- 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);
- 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);
- }
-
- 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_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);
- }
- } /* end for i all ports */
-
- return 0;
-}
-
-static int usb_hub_probe(struct usb_device *dev, int ifnum)
-{
- struct usb_interface *iface;
- struct usb_endpoint_descriptor *ep;
- int ret;
-
- iface = &dev->config.if_desc[ifnum];
- /* Is it a hub? */
- if (iface->desc.bInterfaceClass != USB_CLASS_HUB)
- return 0;
- /* Some hubs have a subclass of 1, which AFAICT according to the */
- /* specs is not defined, but it works */
- if ((iface->desc.bInterfaceSubClass != 0) &&
- (iface->desc.bInterfaceSubClass != 1))
- return 0;
- /* Multiple endpoints? What kind of mutant ninja-hub is this? */
- if (iface->desc.bNumEndpoints != 1)
- return 0;
- ep = &iface->ep_desc[0];
- /* Output endpoint? Curiousier and curiousier.. */
- if (!(ep->bEndpointAddress & USB_DIR_IN))
- return 0;
- /* If it's not an interrupt endpoint, we'd better punt! */
- if ((ep->bmAttributes & 3) != 3)
- return 0;
- /* We found a hub */
- USB_HUB_PRINTF("USB hub found\n");
- ret = usb_hub_configure(dev);
- return ret;
-}
-
/* EOF */
projects / karo-tx-uboot.git / blobdiff