diff options
Diffstat (limited to 'drivers/isdn/hardware/eicon/diva_dma.c')
-rw-r--r-- | drivers/isdn/hardware/eicon/diva_dma.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/drivers/isdn/hardware/eicon/diva_dma.c b/drivers/isdn/hardware/eicon/diva_dma.c deleted file mode 100644 index 217b6aa9f612..000000000000 --- a/drivers/isdn/hardware/eicon/diva_dma.c +++ /dev/null @@ -1,94 +0,0 @@ - -/* - * - Copyright (c) Eicon Networks, 2002. - * - This source file is supplied for the use with - Eicon Networks range of DIVA Server Adapters. - * - Eicon File Revision : 2.1 - * - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - * - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY - implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - See the GNU General Public License for more details. - * - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ -#include "platform.h" -#include "diva_dma.h" -/* - Every entry has length of PAGE_SIZE - and represents one single physical page -*/ -struct _diva_dma_map_entry { - int busy; - dword phys_bus_addr; /* 32bit address as seen by the card */ - void *local_ram_addr; /* local address as seen by the host */ - void *addr_handle; /* handle uset to free allocated memory */ -}; -/* - Create local mapping structure and init it to default state -*/ -struct _diva_dma_map_entry *diva_alloc_dma_map(void *os_context, int nentries) { - diva_dma_map_entry_t *pmap = diva_os_malloc(0, sizeof(*pmap) * (nentries + 1)); - if (pmap) - memset(pmap, 0, sizeof(*pmap) * (nentries + 1)); - return pmap; -} -/* - Free local map (context should be freed before) if any -*/ -void diva_free_dma_mapping(struct _diva_dma_map_entry *pmap) { - if (pmap) { - diva_os_free(0, pmap); - } -} -/* - Set information saved on the map entry -*/ -void diva_init_dma_map_entry(struct _diva_dma_map_entry *pmap, - int nr, void *virt, dword phys, - void *addr_handle) { - pmap[nr].phys_bus_addr = phys; - pmap[nr].local_ram_addr = virt; - pmap[nr].addr_handle = addr_handle; -} -/* - Allocate one single entry in the map -*/ -int diva_alloc_dma_map_entry(struct _diva_dma_map_entry *pmap) { - int i; - for (i = 0; (pmap && pmap[i].local_ram_addr); i++) { - if (!pmap[i].busy) { - pmap[i].busy = 1; - return (i); - } - } - return (-1); -} -/* - Free one single entry in the map -*/ -void diva_free_dma_map_entry(struct _diva_dma_map_entry *pmap, int nr) { - pmap[nr].busy = 0; -} -/* - Get information saved on the map entry -*/ -void diva_get_dma_map_entry(struct _diva_dma_map_entry *pmap, int nr, - void **pvirt, dword *pphys) { - *pphys = pmap[nr].phys_bus_addr; - *pvirt = pmap[nr].local_ram_addr; -} -void *diva_get_entry_handle(struct _diva_dma_map_entry *pmap, int nr) { - return (pmap[nr].addr_handle); -} |