+++ /dev/null
-/*
- * Copyright (c) 2013 Qualcomm Atheros, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted (subject to the limitations in the
- * disclaimer below) provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the
- * distribution.
- *
- * * Neither the name of Qualcomm Atheros nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
- * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
- * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
- * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-/*
- * @File: dma_engine.c
- *
- * @Abstract: DMA engine for Magpie
- *
- * @Notes:
- */
-#include "sys_cfg.h"
-#include "dt_defs.h"
-#include "reg_defs.h"
-#include "desc.h"
-
-#include <osapi.h>
-//#include <HIF_api.h>
-#include <dma_engine_api.h>
-#include <Magpie_api.h>
-#include <vdesc_api.h>
-#include <adf_os_mem.h>
-#include <adf_os_io.h>
-
-//#include "HIF_usb.h"
-
-//HIF_USB_CONTEXT g_hifUSBCtx;
-
-#define VDESC_TO_USBDESC(vdesc) (struct zsDmaDesc *)((vdesc)->hw_desc_buf)
-
-static void relinkUSBDescToVdesc(VBUF *buf, struct zsDmaDesc* desc);
-static void config_queue(struct zsDmaQueue *q, VDESC *desc_list);
-
-#if ENABLE_SW_SWAP_DATA_MODE
-static void swapData(struct zsDmaDesc* usbDesc);
-#endif
-
-static void init_usb_desc(struct zsDmaDesc *usbDesc)
-{
- usbDesc->status = ZM_OWN_BITS_SW;
- usbDesc->ctrl = 0;
- usbDesc->dataSize = 0;
- usbDesc->totalLen = 0;
- usbDesc->lastAddr = 0;
- usbDesc->dataAddr = 0;
- usbDesc->nextAddr = 0;
-}
-
-void _DMAengine_init()
-{
-
-}
-
-void _DMAengine_init_rx_queue(struct zsDmaQueue *q)
-{
- VDESC *desc;
- struct zsDmaDesc *usbDesc;
-
- desc = VDESC_alloc_vdesc();
- if ( desc != NULL ) {
- usbDesc = VDESC_TO_USBDESC(desc);
- init_usb_desc(usbDesc);
-
- q->head = q->terminator = usbDesc;
- }
-}
-
-void _DMAengine_init_tx_queue(struct zsTxDmaQueue *q)
-{
- _DMAengine_init_rx_queue((struct zsDmaQueue *)q);
- q->xmited_buf_head = NULL;
- q->xmited_buf_tail = NULL;
-}
-
-#if ENABLE_SW_SWAP_DATA_MODE
-
-static void swapData(struct zsDmaDesc* usbDesc)
-{
- int len = (usbDesc->dataSize & 0xfffffffc) >> 2;
- int i;
- A_UINT32 *dataAddr = (A_UINT32 *)usbDesc->dataAddr;
- A_UINT32 data;
-
- if ( ( usbDesc->dataSize & 3 ) != 0 ) {
- len += 1;
- }
-
- for ( i = 0; i < len; i++ ) {
- data = dataAddr[i];
-
- dataAddr[i] = __bswap32(data);
- }
-}
-
-#endif
-
-void _DMAengine_return_recv_buf(struct zsDmaQueue *q, VBUF *buf)
-{
- /* Re-link the VDESC of buf into USB descriptor list & queue the descriptors
- into downQ
- */
- config_queue(q, buf->desc_list);
- VBUF_free_vbuf(buf);
-}
-
-static void config_queue(struct zsDmaQueue *q, VDESC *desc_list)
-{
- VDESC *theDesc;
- struct zsDmaDesc *usbDesc;
- struct zsDmaDesc* prevUsbDesc = NULL;
- struct zsDmaDesc* headUsbDesc;
-
- theDesc = desc_list;
- while ( theDesc != NULL ) {
- usbDesc = (struct zsDmaDesc *)VDESC_get_hw_desc(theDesc);
- init_usb_desc(usbDesc);
-
- theDesc->data_offset = 0; //RAY 0723
- usbDesc->dataAddr = (volatile u32_t)(theDesc->buf_addr + theDesc->data_offset);
- usbDesc->dataSize = theDesc->buf_size;
-
- if ( prevUsbDesc == NULL ) {
- headUsbDesc = usbDesc;
- prevUsbDesc = usbDesc;
- } else {
- prevUsbDesc->nextAddr = usbDesc;
- prevUsbDesc = usbDesc;
- }
-
- theDesc = theDesc->next_desc;
- }
-
- headUsbDesc->lastAddr = prevUsbDesc;
- DMA_Engine_reclaim_packet(q, headUsbDesc);
-
- return;
-}
-
-//#define MAX_TX_BUF_SIZE ZM_BLOCK_SIZE
-//#define MAX_TX_BUF_SIZE 1600
-
-void _DMAengine_config_rx_queue(struct zsDmaQueue *q, int num_desc, int buf_size)
-{
- int i;
- VDESC *desc;
- VDESC *head = NULL;
-
- for(i=0; i < num_desc; i++)
- {
- desc = VDESC_alloc_vdesc();
-
- adf_os_assert(desc != NULL);
-
- desc->buf_addr = (A_UINT8 *)adf_os_mem_alloc(buf_size);
- desc->buf_size = buf_size;
- desc->next_desc = NULL;
- desc->data_offset = 0;
- desc->data_size = 0;
- desc->control = 0;
-
- if ( head == NULL )
- {
- head = desc;
- }
- else
- {
- desc->next_desc = head;
- head = desc;
- }
- }
-
- config_queue(q, head);
-}
-
-void _DMAengine_xmit_buf(struct zsTxDmaQueue *q, VBUF *buf)
-{
- VDESC *currVdesc;
- struct zsDmaDesc* usbDesc;
- struct zsDmaDesc* prevUsbDesc = NULL;
- struct zsDmaDesc* headUsbDesc;
-
- /* Re-link the VDESC of buf into USB descriptor list & queue the descriptors
- into upQ
- */
- currVdesc = (VDESC *)buf->desc_list;
- while(currVdesc != NULL) {
-
- usbDesc = (struct zsDmaDesc *)currVdesc->hw_desc_buf;
-
- init_usb_desc(usbDesc);
- usbDesc->dataSize = currVdesc->data_size;
- usbDesc->dataAddr = (volatile u32_t)(currVdesc->buf_addr + currVdesc->data_offset);
- usbDesc->ctrl = 0;
- usbDesc->status = 0;
-
-#if ENABLE_SW_SWAP_DATA_MODE && ENABLE_SWAP_DATA_MODE == 0
- swapData(usbDesc);
-#endif
-
- if ( prevUsbDesc == NULL ) {
- headUsbDesc = usbDesc;
-
- usbDesc->ctrl |= ZM_FS_BIT;
-
- // how to get the total len???
- usbDesc->totalLen = buf->buf_length;
- prevUsbDesc = usbDesc;
- }
- else {
- prevUsbDesc->nextAddr = usbDesc;
- prevUsbDesc = usbDesc;
- }
-
- currVdesc = currVdesc->next_desc;
- }
-
- usbDesc->ctrl |= ZM_LS_BIT;
- headUsbDesc->lastAddr = usbDesc;
-
- if ( q->xmited_buf_head == NULL && q->xmited_buf_tail == NULL ) {
- q->xmited_buf_head = buf;
- q->xmited_buf_tail = buf;
- q->xmited_buf_head->next_buf = q->xmited_buf_tail;
- }
- else {
- q->xmited_buf_tail->next_buf = buf;
- q->xmited_buf_tail = buf;
- }
-
- DMA_Engine_put_packet((struct zsDmaQueue *)q, headUsbDesc);
-}
-
-void _DMAengine_flush_xmit(struct zsDmaQueue *q)
-{
-}
-
-int _DMAengine_has_compl_packets(struct zsDmaQueue *q)
-{
- int has_compl_pkts = 0;
-
- if ((q->head != q->terminator) &&
- ((q->head->status & ZM_OWN_BITS_MASK) != ZM_OWN_BITS_HW)) {
- has_compl_pkts = 1;
- }
-
- return has_compl_pkts;
-}
-
-VBUF* _DMAengine_reap_recv_buf(struct zsDmaQueue *q)
-{
- struct zsDmaDesc* desc;
- VBUF *buf;
- //int i;
- //u8_t *tbuf = (u8_t *)desc->dataAddr;
-
- desc = DMA_Engine_get_packet(q);
-
- if(!desc)
- return NULL;
-
-#if ENABLE_SW_SWAP_DATA_MODE && ENABLE_SWAP_DATA_MODE == 0
- swapData(desc);
-#endif
-
- buf = VBUF_alloc_vbuf();
- adf_os_assert(buf != NULL);
-
- relinkUSBDescToVdesc(buf, desc);
- return buf;
-}
-
-VBUF* _DMAengine_reap_xmited_buf(struct zsTxDmaQueue *q)
-{
- struct zsDmaDesc* desc;
- VBUF *sentBuf;
-
- desc = DMA_Engine_get_packet((struct zsDmaQueue *)q);
-
- if(!desc)
- return NULL;
-
- // assert g_hifUSBCtx.upVbufQ.head is not null
- // assert g_hifUSBCtx.upVbufQ.tail is not null
- sentBuf = q->xmited_buf_head;
- if ( q->xmited_buf_head == q->xmited_buf_tail ) {
- q->xmited_buf_head = NULL;
- q->xmited_buf_tail = NULL;
- } else {
- q->xmited_buf_head = q->xmited_buf_head->next_buf;
- }
-
- sentBuf->next_buf = NULL;
- relinkUSBDescToVdesc(sentBuf, desc);
- return sentBuf;
-}
-
-void _DMAengine_desc_dump(struct zsDmaQueue *q)
-{
- u32_t i=0;
- struct zsDmaDesc* tmpDesc;
-
- tmpDesc = q->head;
-
- do {
- if( tmpDesc == q->terminator )
- {
-#ifdef DESC_DUMP_BOTH_DESCnDATA
- A_PRINTF("0x%08x(0x%08x,T)]", tmpDesc, tmpDesc->dataAddr);
-#else
- A_PRINTF("0x%08x(T)]", tmpDesc);
-#endif
- break;
- }
- else
-#ifdef DESC_DUMP_BOTH_DESCnDATA
- A_PRINTF("0x%08x(0x%08x,%c)->", tmpDesc, tmpDesc->dataAddr, (tmpDesc->status&ZM_OWN_BITS_HW)?'H':'S');
-#else
- A_PRINTF("0x%08x(%c)->", tmpDesc, (tmpDesc->status&ZM_OWN_BITS_HW)?'H':'S');
-#endif
-
- if( (++i%5)==0 )
- {
- A_PRINTF("\n\r ");
- }
-
- tmpDesc = tmpDesc->nextAddr;
- }while(1);
- A_PRINTF("\n\r");
-}
-
-/* the exported entry point into this module. All apis are accessed through
- * function pointers */
-void dma_engine_module_install(struct dma_engine_api *apis)
-{
- /* hook in APIs */
- apis->_init = _DMAengine_init;
- apis->_config_rx_queue = _DMAengine_config_rx_queue;
- apis->_xmit_buf = _DMAengine_xmit_buf;
- apis->_flush_xmit = _DMAengine_flush_xmit;
- apis->_reap_recv_buf = _DMAengine_reap_recv_buf;
- apis->_return_recv_buf = _DMAengine_return_recv_buf;
- apis->_reap_xmited_buf = _DMAengine_reap_xmited_buf;
- apis->_swap_data = swapData;
- apis->_has_compl_packets = _DMAengine_has_compl_packets;
- apis->_init_rx_queue = _DMAengine_init_rx_queue;
- apis->_init_tx_queue = _DMAengine_init_tx_queue;
- apis->_desc_dump = _DMAengine_desc_dump;
- apis->_get_packet = zfDmaGetPacket;
- apis->_reclaim_packet = zfDmaReclaimPacket;
- apis->_put_packet = zfDmaPutPacket;
-
- /* save ptr to the ptr to the context for external code to inspect/modify internal module state */
- //apis->pReserved = &g_pMboxHWContext;
-}
-
-static void relinkUSBDescToVdesc(VBUF *buf, struct zsDmaDesc* desc)
-{
- VDESC *vdesc;
- VDESC *prevVdesc = NULL;
- struct zsDmaDesc *currDesc = desc;
-
- vdesc = VDESC_HW_TO_VDESC(currDesc);
- buf->desc_list = vdesc;
- buf->buf_length = currDesc->totalLen;
-
- while(currDesc != NULL) {
- vdesc->data_size = currDesc->dataSize;
- //vdesc->data_offset = 0; // TODO: bad!!
-
- if ( prevVdesc == NULL ) {
- prevVdesc = vdesc;
- } else {
- prevVdesc->next_desc = vdesc;
- prevVdesc = vdesc;
- }
-
- if ( currDesc->ctrl & ZM_LS_BIT ) {
- vdesc->next_desc = NULL;
- currDesc = NULL;
- break;
- } else {
- currDesc = currDesc->nextAddr;
- vdesc = VDESC_HW_TO_VDESC(currDesc);
- }
- }
-}
projects / open-ath9k-htc-firmware.git / blobdiff