xref: /utopia/UTPA2-700.0.x/modules/usb/drv/usb_ecos/usbhost/drvHcdBuf.c (revision 53ee8cc121a030b8d368113ac3e966b4705770ef)

//<MStar Software>
//******************************************************************************
// MStar Software
// Copyright (c) 2010 - 2012 MStar Semiconductor, Inc. All rights reserved.
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//<MStar Software>

#include <MsCommon.h>
#include  "include/drvConfig.h"
#include  "include/drvCompiler.h"
#include  "include/drvErrno.h"
#include  "include/drvPorts.h"
#include  "include/drvPCIMEM.h"
#include "include/drvTimer.h"
#include "include/drvKernel.h"

#if 1


#ifdef CONFIG_USB_DEBUG
  #define DEBUG
#else
  #undef DEBUG
#endif

// USB related header files
#include "include/drvUSB.h"
#include "drvHCD.h"



void hcd_buffer_destroy (struct usb_hcd *hcd);


static const size_t  pool_max [HCD_BUFFER_POOLS] = {
  32,
  64,
  128,
  512,
  PAGE_SIZE / 2
};

int hcd_buffer_create (struct usb_hcd *hcd)
{
  char    name [16];
  int     i, size;

  for (i = 0; i < HCD_BUFFER_POOLS; i++) {
    if (!(size = pool_max [i]))
      continue;
    USB_sprintf(name, /*sizeof(name),*/ "buffer-%d", size);
    hcd->pool [i] = pci_pool_create (name, hcd->pdev,
        size, size, 0);
    if (!hcd->pool [i]) {
      hcd_buffer_destroy (hcd);
      return -ENOMEM;
    }
  }
  return 0;
}

void hcd_buffer_destroy (struct usb_hcd *hcd)
{
  int    i;

  for (i = 0; i < HCD_BUFFER_POOLS; i++) {
    struct pci_pool    *pool = hcd->pool [i];
    if (pool) {
      pci_pool_destroy (pool);
      hcd->pool [i] = 0;
    }
  }
}

void *hcd_buffer_alloc (
  struct usb_bus     *bus,
  size_t      size,
  int      mem_flags,
  dma_addr_t    *dma
)
{
  struct usb_hcd    *hcd = (struct usb_hcd*) bus->hcpriv;
  int       i;

  for (i = 0; i < HCD_BUFFER_POOLS; i++) {
    if (size <= pool_max [i])
      return pci_pool_alloc (hcd->pool [i], mem_flags, dma);
  }
  return ncmem_alloc_page(dma);
}

void hcd_buffer_free (
  struct usb_bus     *bus,
  size_t      size,
  void       *addr,
  dma_addr_t    dma
)
{
  struct usb_hcd    *hcd = (struct usb_hcd*) bus->hcpriv;
  int       i;

  for (i = 0; i < HCD_BUFFER_POOLS; i++) {
    if (size <= pool_max [i]) {
      pci_pool_free (hcd->pool [i], addr, dma);
      return;
    }
  }
  ncmem_free_page((U32)addr);
}
#endif	//#ifdef