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[MIPS] Alchemy: dbdma: add API to delete custom DDMA device ids. 

Add API to delete custom DDMA device ids create with
au1xxx_ddma_device_add().

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Manuel Lauss 2008-05-07 13:45:23 +02:00 committed by Ralf Baechle
parent b1fb05cdb9
commit ccdb0034f8
2 changed files with 12 additions and 0 deletions
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11
arch/mips/au1000/common/dbdma.c
View File

@ -216,6 +216,17 @@ u32 au1xxx_ddma_add_device(dbdev_tab_t *dev)
} }
EXPORT_SYMBOL(au1xxx_ddma_add_device); EXPORT_SYMBOL(au1xxx_ddma_add_device);
void au1xxx_ddma_del_device(u32 devid)
{
dbdev_tab_t *p = find_dbdev_id(devid);
if (p != NULL) {
memset(p, 0, sizeof(dbdev_tab_t));
p->dev_id = ~0;
}
}
EXPORT_SYMBOL(au1xxx_ddma_del_device);
/* Allocate a channel and return a non-zero descriptor if successful. */ /* Allocate a channel and return a non-zero descriptor if successful. */
u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid, u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
void (*callback)(int, void *), void *callparam) void (*callback)(int, void *), void *callparam)

1
include/asm-mips/mach-au1x00/au1xxx_dbdma.h
View File

@ -355,6 +355,7 @@ void au1xxx_dbdma_dump(u32 chanid);
u32 au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr); u32 au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr);
u32 au1xxx_ddma_add_device(dbdev_tab_t *dev); u32 au1xxx_ddma_add_device(dbdev_tab_t *dev);
extern void au1xxx_ddma_del_device(u32 devid);
void *au1xxx_ddma_get_nextptr_virt(au1x_ddma_desc_t *dp); void *au1xxx_ddma_get_nextptr_virt(au1x_ddma_desc_t *dp);
/* /*