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Need to init IO buffer free list

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3210 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-12-21 12:13:16 +00:00
parent c623494f6d
commit 4ba5fc781b
1 changed files with 18 additions and 4 deletions
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22
arch/arm/src/lpc17xx/lpc17_usbhost.c
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@ -115,6 +115,7 @@
#define EDFREE ((struct lpc17_hced_s *)LPC17_EDFREE_BASE)
#define TDFREE ((uint8_t *)LPC17_TDFREE_BASE)
#define IOFREE ((uint8_t *)LPC17_IOFREE_BASE)
/* Descriptors *****************************************************************/
@ -1575,7 +1576,7 @@ FAR struct usbhost_driver_s *usbhost_initialize(int controller)
{
struct lpc17_usbhost_s *priv = &g_usbhost;
uint32_t regval;
uint8_t *tdfree;
uint8_t *buffer;
irqstate_t flags;
int i;
@ -1641,15 +1642,28 @@ FAR struct usbhost_driver_s *usbhost_initialize(int controller)
/* Initialize user-configurable TD buffers */
tdfree = TDFREE;
buffer = TDFREE;
for (i = 0; i < CONFIG_USBHOST_NEDS; i++)
{
/* Put the TD buffer in a free list */
lpc17_tdfree(priv, tdfree);
tdfree += CONFIG_USBHOST_TDBUFSIZE;
lpc17_tdfree(priv, buffer);
buffer += CONFIG_USBHOST_TDBUFSIZE;
}
#ifdef CONFIG_UBHOST_AHBIOBUFFERS
/* Initialize user-configurable IO buffers */
buffer = IOFREE;
for (i = 0; i < LPC17_IOBUFFERS; i++)
{
/* Put the TD buffer in a free list */
lpc17_iofree(priv, buffer);
buffer += CONFIG_USBHOST_IOBUFSIZE;
}
#endif
/* Wait 50MS then perform hardware reset */
up_mdelay(50);