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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3202 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-12-20 21:48:16 +00:00
parent f9c678f4d0
commit 5a16745519
1 changed files with 171 additions and 17 deletions
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188
arch/arm/src/lpc17xx/lpc17_usbhost.c
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@ -112,14 +112,6 @@
#define TD_DELAY(n) (uint32_t)((n) << GTD_STATUS_DI_SHIFT)
/* Debug ***********************************************************************/
/* Trace error codes */
#warning "To be provided"
/* Trace interrupt codes */
#warning "To be provided"
/*******************************************************************************
* Private Types
*******************************************************************************/
@ -912,8 +904,159 @@ static int lpc17_usbinterrupt(int irq, FAR void *context)
static int lpc17_enumerate(FAR struct usbhost_driver_s *drvr)
{
# warning "Not Implemented"
return -ENOSYS;
struct lpc17_usbhost_s *priv = (struct lpc17_usbhost_s *)drvr;
struct usb_ctrlreq_s *ctrlreq;
unsigned int len;
uint8_t *td;
int ret;
ulldbg("Enumerate device\n");
/* Allocate a TD buffer for use in this function */
td = lpc17_tdalloc(priv);
if (!td)
{
return -ENOMEM;
}
ctrlreq = (struct usb_ctrlreq_s *)td;
/* Are we already connected? */
while (!priv->connected)
{
/* No, wait for the connection */
lpc17_takesem(&priv->rhssem);
}
/* USB 2.0 spec says at least 50ms delay before port reset */
up_mdelay(100);
/* Put the RH port in reset */
lpc17_putreg(OHCI_RHPORTST_PRS, LPC17_USBHOST_RHPORTST1);
/* Wait for the port reset to complete */
while ((lpc17_getreg(LPC17_USBHOST_RHPORTST1) & OHCI_RHPORTST_PRS) != 0);
/* Release the RH port from reset and wait a bit */
lpc17_putreg(OHCI_RHPORTST_PRSC, LPC17_USBHOST_RHPORTST1);
up_mdelay(200);
/* Set max pkt size = 8 */
EDCTRL->ctrl = 8 << ED_CONTROL_MPS_SHIFT;
/* Read first 8 bytes of the device descriptor */
ctrlreq->type = USB_REQ_DIR_IN|USB_REQ_RECIPIENT_DEVICE;
ctrlreq->req = USB_REQ_GETDESCRIPTOR;
lpc17_putle16(ctrlreq->value, (USB_DESC_TYPE_DEVICE << 8));
lpc17_putle16(ctrlreq->index, 0);
lpc17_putle16(ctrlreq->len, 8);
ret = lpc17_ctrlin(drvr, ctrlreq, td);
if (ret != OK)
{
ulldbg("ERROR: lpc17_ctrlin returned %d\n", ret);
goto errout;
}
/* Extract the max packetsize for endpoint 0 */
EDCTRL->ctrl = (uint32_t)(((struct usb_devdesc_s *)td)->mxpacketsize) << ED_CONTROL_MPS_SHIFT;
/* Set the device address to 1 */
ctrlreq->type = USB_REQ_DIR_OUT|USB_REQ_RECIPIENT_DEVICE;
ctrlreq->req = USB_REQ_SETADDRESS;
lpc17_putle16(ctrlreq->value, (1 << 8));
lpc17_putle16(ctrlreq->index, 0);
lpc17_putle16(ctrlreq->len, 0);
ret = lpc17_ctrlout(drvr, ctrlreq, NULL);
if (ret != OK)
{
ulldbg("ERROR: lpc17_ctrlout returned %d\n", ret);
goto errout;
}
up_mdelay(2);
/* Modify control pipe with address 1 */
EDCTRL->ctrl = (EDCTRL->ctrl) | 1;
/* Get the configuration descriptor (only) */
ctrlreq->type = USB_REQ_DIR_IN|USB_REQ_RECIPIENT_DEVICE;
ctrlreq->req = USB_REQ_GETDESCRIPTOR;
lpc17_putle16(ctrlreq->value, (USB_DESC_TYPE_CONFIG << 8));
lpc17_putle16(ctrlreq->index, 0);
lpc17_putle16(ctrlreq->len, USB_SIZEOF_CFGDESC);
ret = lpc17_ctrlin(drvr, ctrlreq, td);
if (ret != OK)
{
ulldbg("ERROR: lpc17_ctrlin returned %d\n", ret);
goto errout;
}
/* Extract the full size of the configuration data */
len = ((struct usb_cfgdesc_s *)td)->len;
/* Get all of the configuration data */
ctrlreq->type = USB_REQ_DIR_IN|USB_REQ_RECIPIENT_DEVICE;
ctrlreq->req = USB_REQ_GETDESCRIPTOR;
lpc17_putle16(ctrlreq->value, (USB_DESC_TYPE_CONFIG << 8));
lpc17_putle16(ctrlreq->index, 0);
lpc17_putle16(ctrlreq->len, len);
ret = lpc17_ctrlin(drvr, ctrlreq, td);
if (ret != OK)
{
ulldbg("ERROR: lpc17_ctrlin returned %d\n", ret);
goto errout;
}
/* Parse the configuration descriptor and bind to the class instance for the
* device.
*/
ret = lpc17_classbind(priv, td, len);
if (ret != OK)
{
ulldbg("ERROR: MS_ParseConfiguration returned %d\n", ret);
goto errout;
}
/* Select device configuration 1 */
ctrlreq->type = USB_REQ_DIR_OUT|USB_REQ_RECIPIENT_DEVICE;
ctrlreq->req = USB_REQ_SETCONFIGURATION;
lpc17_putle16(ctrlreq->value, 1);
lpc17_putle16(ctrlreq->index, 0);
lpc17_putle16(ctrlreq->len, 0);
ret = lpc17_ctrlout(drvr, ctrlreq, NULL);
if (ret != OK)
{
ulldbg("ERROR: lpc17_ctrlout returned %d\n", ret);
goto errout;
}
/* Some devices may require this delay */
up_mdelay(100);
errout:
lpc17_tdfree(priv, td);
return ret;
}
/*******************************************************************************
@ -942,11 +1085,19 @@ static int lpc17_enumerate(FAR struct usbhost_driver_s *drvr)
*
*******************************************************************************/
static int lpc17_alloc(FAR struct usbhost_driver_s *drvr,
FAR uint8_t **buffer, FAR size_t *maxlen)
static int lpc17_alloc(FAR struct usbhost_driver_s *drvr,
FAR uint8_t **buffer, FAR size_t *maxlen)
{
# warning "Not Implemented"
return -ENOSYS;
struct lpc17_usbhost_s *priv = (struct lpc17_usbhost_s *)drvr;
DEBUGASSERT(priv && buffer && maxlen);
*buffer = lpc17_tdalloc(priv);
if (*buffer)
{
*maxlen = CONFIG_USBHOST_TDBUFSIZE;
return OK;
}
return -ENOMEM;
}
/*******************************************************************************
@ -974,8 +1125,10 @@ static int lpc17_enumerate(FAR struct usbhost_driver_s *drvr)
static int lpc17_free(FAR struct usbhost_driver_s *drvr, FAR uint8_t *buffer)
{
# warning "Not Implemented"
return -ENOSYS;
struct lpc17_usbhost_s *priv = (struct lpc17_usbhost_s *)drvr;
DEBUGASSERT(priv && buffer);
lpc17_tdfree(priv, buffer);
return OK;
}
/*******************************************************************************
@ -1179,7 +1332,8 @@ static int lpc17_transfer(FAR struct usbhost_driver_s *drvr,
static void lpc17_disconnect(FAR struct usbhost_driver_s *drvr)
{
# warning "Not Implemented"
struct lpc17_usbhost_s *priv = (struct lpc17_usbhost_s *)drvr;
priv->class = NULL;
}
/*******************************************************************************