541 lines
13 KiB
C
541 lines
13 KiB
C
/**************************************************************************//**
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* @file mem_alloc.c
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* @version V1.10
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* $Revision: 11 $
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* $Date: 14/10/03 1:54p $
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* @brief USB host library memory allocation functions.
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*
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* @note
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* SPDX-License-Identifier: Apache-2.0
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* Copyright (C) 2018 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "usb.h"
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/// @cond HIDDEN_SYMBOLS
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//#define MEM_DEBUG
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#ifdef MEM_DEBUG
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#define mem_debug rt_kprintf
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#else
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#define mem_debug(...)
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#endif
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#ifdef __ICCARM__
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#pragma data_alignment=1024
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uint8_t _mem_pool_buff[MEM_POOL_UNIT_NUM][MEM_POOL_UNIT_SIZE];
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#else
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uint8_t _mem_pool_buff[MEM_POOL_UNIT_NUM][MEM_POOL_UNIT_SIZE] __attribute__((aligned(1024)));
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#endif
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static uint8_t *_mem_pool[MEM_POOL_UNIT_NUM];
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static uint8_t _unit_used[MEM_POOL_UNIT_NUM];
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static volatile int _usbh_mem_used;
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static volatile int _usbh_max_mem_used;
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static volatile int _mem_pool_used;
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UDEV_T *g_udev_list;
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uint8_t _dev_addr_pool[128];
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static volatile int _device_addr;
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static int _sidx = 0;;
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/*--------------------------------------------------------------------------*/
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/* Memory alloc/free recording */
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/*--------------------------------------------------------------------------*/
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void usbh_memory_init(void)
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{
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int i;
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if (sizeof(TD_T) > MEM_POOL_UNIT_SIZE)
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{
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USB_error("TD_T - MEM_POOL_UNIT_SIZE too small!\n");
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while (1);
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}
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if (sizeof(ED_T) > MEM_POOL_UNIT_SIZE)
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{
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USB_error("ED_T - MEM_POOL_UNIT_SIZE too small!\n");
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while (1);
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}
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for (i = 0; i < MEM_POOL_UNIT_NUM; i++)
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{
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_unit_used[i] = 0;
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_mem_pool[i] = (uint8_t *)((uint32_t)&_mem_pool_buff[i] | NON_CACHE_MASK);
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}
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_usbh_mem_used = 0L;
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_usbh_max_mem_used = 0L;
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_mem_pool_used = 0;
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_sidx = 0;
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g_udev_list = NULL;
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memset(_dev_addr_pool, 0, sizeof(_dev_addr_pool));
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_device_addr = 1;
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USB_InitializeMemoryPool();
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}
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uint32_t usbh_memory_used(void)
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{
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mem_debug("USB static memory: %d/%d, heap used: %d\n", _mem_pool_used, MEM_POOL_UNIT_NUM, _usbh_mem_used);
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return _usbh_mem_used;
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}
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static void memory_counter(int size)
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{
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_usbh_mem_used += size;
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if (_usbh_mem_used > _usbh_max_mem_used)
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_usbh_max_mem_used = _usbh_mem_used;
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}
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void *usbh_alloc_mem(int size)
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{
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void *p;
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p = USB_malloc(size, 16);
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if (p == NULL)
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{
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USB_error("usbh_alloc_mem failed! %d\n", size);
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return NULL;
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}
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memset(p, 0, size);
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memory_counter(size);
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return p;
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}
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void usbh_free_mem(void *p, int size)
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{
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USB_free(p);
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memory_counter(0 - size);
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}
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/*--------------------------------------------------------------------------*/
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/* USB device allocate/free */
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/*--------------------------------------------------------------------------*/
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UDEV_T *alloc_device(void)
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{
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UDEV_T *udev;
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udev = (UDEV_T *)USB_malloc(sizeof(*udev), 16);
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if (udev == NULL)
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{
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USB_error("alloc_device failed!\n");
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return NULL;
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}
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memset(udev, 0, sizeof(*udev));
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memory_counter(sizeof(*udev));
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udev->cur_conf = -1; /* must! used to identify the first SET CONFIGURATION */
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udev->next = g_udev_list; /* chain to global device list */
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g_udev_list = udev;
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return udev;
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}
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void free_device(UDEV_T *udev)
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{
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UDEV_T *d;
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if (udev == NULL)
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return;
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if (udev->cfd_buff != NULL)
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usbh_free_mem(udev->cfd_buff, MAX_DESC_BUFF_SIZE);
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/*
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* Remove it from the global device list
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*/
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if (g_udev_list == udev)
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{
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g_udev_list = g_udev_list->next;
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}
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else
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{
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d = g_udev_list;
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while (d != NULL)
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{
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if (d->next == udev)
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{
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d->next = udev->next;
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break;
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}
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d = d->next;
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}
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}
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USB_free(udev);
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memory_counter(-sizeof(*udev));
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}
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int alloc_dev_address(void)
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{
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_device_addr++;
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if (_device_addr >= 128)
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_device_addr = 1;
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while (1)
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{
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if (_dev_addr_pool[_device_addr] == 0)
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{
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_dev_addr_pool[_device_addr] = 1;
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return _device_addr;
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}
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_device_addr++;
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if (_device_addr >= 128)
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_device_addr = 1;
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}
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}
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void free_dev_address(int dev_addr)
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{
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if (dev_addr < 128)
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_dev_addr_pool[dev_addr] = 0;
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}
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/*--------------------------------------------------------------------------*/
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/* UTR (USB Transfer Request) allocate/free */
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/*--------------------------------------------------------------------------*/
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UTR_T *alloc_utr(UDEV_T *udev)
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{
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#if 0
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UTR_T *utr, *utr_noncache;
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utr = (UTR_T *)USB_malloc(sizeof(*utr), 16);
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if (utr == NULL)
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{
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USB_error("alloc_utr failed!\n");
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return NULL;
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}
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utr_noncache = (UTR_T *)((uint32_t)utr | NONCACHEABLE);
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memory_counter(sizeof(*utr));
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memset(utr_noncache, 0, sizeof(*utr));
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utr_noncache->udev = udev;
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mem_debug("[ALLOC] [UTR] - 0x%x\n", (int)utr_noncache);
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return utr_noncache;
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#else
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UTR_T *utr;
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utr = (UTR_T *)USB_malloc(sizeof(*utr), 16);
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if (utr == NULL)
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{
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USB_error("alloc_utr failed!\n");
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return NULL;
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}
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memory_counter(sizeof(*utr));
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memset(utr, 0, sizeof(*utr));
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utr->udev = udev;
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mem_debug("[ALLOC] [UTR] - 0x%x\n", (int)utr_noncache);
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return utr;
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#endif
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}
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void free_utr(UTR_T *utr)
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{
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if (utr == NULL)
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return;
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mem_debug("[FREE] [UTR] - 0x%x\n", (int)utr);
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#if 0
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if ((uint32_t)utr & NONCACHEABLE)
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utr = (UTR_T *)((uint32_t)utr & ~NONCACHEABLE);
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#endif
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USB_free(utr);
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memory_counter(0 - (int)sizeof(*utr));
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}
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/*--------------------------------------------------------------------------*/
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/* OHCI ED allocate/free */
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/*--------------------------------------------------------------------------*/
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ED_T *alloc_ohci_ED(void)
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{
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int i;
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ED_T *ed;
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for (i = 0; i < MEM_POOL_UNIT_NUM; i++)
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{
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if (_unit_used[i] == 0)
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{
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_unit_used[i] = 1;
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_mem_pool_used++;
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ed = (ED_T *)_mem_pool[i];
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memset(ed, 0, sizeof(*ed));
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mem_debug("[ALLOC] [ED] - 0x%x\n", (int)ed);
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return ed;
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}
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}
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USB_error("alloc_ohci_ED failed!\n");
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return NULL;
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}
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void free_ohci_ED(ED_T *ed)
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{
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int i;
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for (i = 0; i < MEM_POOL_UNIT_NUM; i++)
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{
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if ((uint32_t)_mem_pool[i] == (uint32_t)ed)
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{
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mem_debug("[FREE] [ED] - 0x%x\n", (int)ed);
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_unit_used[i] = 0;
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_mem_pool_used--;
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return;
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}
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}
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USB_debug("free_ohci_ED - not found! (ignored in case of multiple UTR)\n");
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}
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/*--------------------------------------------------------------------------*/
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/* OHCI TD allocate/free */
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/*--------------------------------------------------------------------------*/
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TD_T *alloc_ohci_TD(UTR_T *utr)
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{
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int i;
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TD_T *td;
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for (i = 0; i < MEM_POOL_UNIT_NUM; i++)
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{
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if (_unit_used[i] == 0)
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{
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_unit_used[i] = 1;
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_mem_pool_used++;
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td = (TD_T *)_mem_pool[i];
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memset(td, 0, sizeof(*td));
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td->utr = utr;
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mem_debug("[ALLOC] [TD] - 0x%x\n", (int)td);
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return td;
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}
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}
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USB_error("alloc_ohci_TD failed!\n");
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return NULL;
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}
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void free_ohci_TD(TD_T *td)
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{
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int i;
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for (i = 0; i < MEM_POOL_UNIT_NUM; i++)
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{
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if ((uint32_t)_mem_pool[i] == (uint32_t)td)
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{
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mem_debug("[FREE] [TD] - 0x%x\n", (int)td);
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_unit_used[i] = 0;
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_mem_pool_used--;
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return;
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}
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}
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USB_error("free_ohci_TD - not found!\n");
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}
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/*--------------------------------------------------------------------------*/
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/* EHCI QH allocate/free */
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/*--------------------------------------------------------------------------*/
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QH_T *alloc_ehci_QH(void)
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{
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int i;
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QH_T *qh = NULL;
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for (i = (_sidx + 1) % MEM_POOL_UNIT_NUM; i != _sidx; i = (i + 1) % MEM_POOL_UNIT_NUM)
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{
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if (_unit_used[i] == 0)
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{
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_unit_used[i] = 1;
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_sidx = i;
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_mem_pool_used++;
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qh = (QH_T *)_mem_pool[i];
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memset(qh, 0, sizeof(*qh));
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mem_debug("[ALLOC] [QH] - 0x%x\n", (int)qh);
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break;
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}
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}
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if (qh == NULL)
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{
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USB_error("alloc_ehci_QH failed!\n");
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return NULL;
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}
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qh->Curr_qTD = QTD_LIST_END;
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qh->OL_Next_qTD = QTD_LIST_END;
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qh->OL_Alt_Next_qTD = QTD_LIST_END;
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qh->OL_Token = QTD_STS_HALT;
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return qh;
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}
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void free_ehci_QH(QH_T *qh)
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{
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int i;
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for (i = 0; i < MEM_POOL_UNIT_NUM; i++)
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{
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if ((uint32_t)_mem_pool[i] == (uint32_t)qh)
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{
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mem_debug("[FREE] [QH] - 0x%x\n", (int)qh);
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_unit_used[i] = 0;
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_mem_pool_used--;
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return;
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}
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}
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USB_debug("free_ehci_QH - not found! (ignored in case of multiple UTR)\n");
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}
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/*--------------------------------------------------------------------------*/
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/* EHCI qTD allocate/free */
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/*--------------------------------------------------------------------------*/
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qTD_T *alloc_ehci_qTD(UTR_T *utr)
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{
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int i;
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qTD_T *qtd;
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for (i = (_sidx + 1) % MEM_POOL_UNIT_NUM; i != _sidx; i = (i + 1) % MEM_POOL_UNIT_NUM)
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{
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if (_unit_used[i] == 0)
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{
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_unit_used[i] = 1;
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_sidx = i;
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_mem_pool_used++;
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qtd = (qTD_T *)_mem_pool[i];
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memset(qtd, 0, sizeof(*qtd));
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qtd->Next_qTD = QTD_LIST_END;
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qtd->Alt_Next_qTD = QTD_LIST_END;
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qtd->Token = 0x1197B7F; // QTD_STS_HALT; visit_qtd() will not remove a qTD with this mark. It means the qTD still not ready for transfer.
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qtd->utr = utr;
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mem_debug("[ALLOC] [qTD] - 0x%x\n", (int)qtd);
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return qtd;
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}
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}
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USB_error("alloc_ehci_qTD failed!\n");
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return NULL;
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}
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void free_ehci_qTD(qTD_T *qtd)
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{
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int i;
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for (i = 0; i < MEM_POOL_UNIT_NUM; i++)
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{
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if ((uint32_t)_mem_pool[i] == (uint32_t)qtd)
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{
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mem_debug("[FREE] [qTD] - 0x%x\n", (int)qtd);
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_unit_used[i] = 0;
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_mem_pool_used--;
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return;
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}
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}
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USB_error("free_ehci_qTD 0x%x - not found!\n", (int)qtd);
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}
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/*--------------------------------------------------------------------------*/
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/* EHCI iTD allocate/free */
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/*--------------------------------------------------------------------------*/
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iTD_T *alloc_ehci_iTD(void)
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{
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int i;
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iTD_T *itd;
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for (i = (_sidx + 1) % MEM_POOL_UNIT_NUM; i != _sidx; i = (i + 1) % MEM_POOL_UNIT_NUM)
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{
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if (i + 2 >= MEM_POOL_UNIT_NUM)
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continue;
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if ((_unit_used[i] == 0) && (_unit_used[i + 1] == 0))
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{
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_unit_used[i] = _unit_used[i + 1] = 1;
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_sidx = i + 1;
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_mem_pool_used += 2;
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itd = (iTD_T *)_mem_pool[i];
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memset(itd, 0, sizeof(*itd));
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mem_debug("[ALLOC] [iTD] - 0x%x\n", (int)itd);
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return itd;
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}
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}
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USB_error("alloc_ehci_iTD failed!\n");
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return NULL;
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}
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void free_ehci_iTD(iTD_T *itd)
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{
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int i;
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for (i = 0; i + 1 < MEM_POOL_UNIT_NUM; i++)
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{
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if ((uint32_t)_mem_pool[i] == (uint32_t)itd)
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{
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mem_debug("[FREE] [iTD] - 0x%x\n", (int)itd);
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_unit_used[i] = _unit_used[i + 1] = 0;
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_mem_pool_used -= 2;
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return;
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}
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}
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USB_error("free_ehci_iTD 0x%x - not found!\n", (int)itd);
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}
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/*--------------------------------------------------------------------------*/
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/* EHCI iTD allocate/free */
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/*--------------------------------------------------------------------------*/
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siTD_T *alloc_ehci_siTD(void)
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{
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int i;
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siTD_T *sitd;
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for (i = (_sidx + 1) % MEM_POOL_UNIT_NUM; i != _sidx; i = (i + 1) % MEM_POOL_UNIT_NUM)
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{
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if (_unit_used[i] == 0)
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{
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_unit_used[i] = 1;
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_sidx = i;
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_mem_pool_used ++;
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sitd = (siTD_T *)_mem_pool[i];
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memset(sitd, 0, sizeof(*sitd));
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mem_debug("[ALLOC] [siTD] - 0x%x\n", (int)sitd);
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return sitd;
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}
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}
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USB_error("alloc_ehci_siTD failed!\n");
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return NULL;
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}
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void free_ehci_siTD(siTD_T *sitd)
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{
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int i;
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for (i = 0; i < MEM_POOL_UNIT_NUM; i++)
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{
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if ((uint32_t)_mem_pool[i] == (uint32_t)sitd)
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{
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mem_debug("[FREE] [siTD] - 0x%x\n", (int)sitd);
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_unit_used[i] = 0;
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_mem_pool_used--;
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return;
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}
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}
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USB_error("free_ehci_siTD 0x%x - not found!\n", (int)sitd);
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}
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/// @endcond HIDDEN_SYMBOLS
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/*** (C) COPYRIGHT 2018 Nuvoton Technology Corp. ***/
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