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-rw-r--r--arch/arm/plat-s3c24xx/Kconfig1
-rw-r--r--arch/arm/plat-s3c24xx/dma.c73
-rw-r--r--arch/arm/plat-s3c24xx/include/plat/dma-plat.h (renamed from arch/arm/plat-s3c24xx/include/plat/dma-core.h)12
3 files changed, 17 insertions, 69 deletions
diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig
index af16c1772db..ba2ea854047 100644
--- a/arch/arm/plat-s3c24xx/Kconfig
+++ b/arch/arm/plat-s3c24xx/Kconfig
@@ -72,6 +72,7 @@ config PM_SIMTEC
config S3C2410_DMA
bool "S3C2410 DMA support"
depends on ARCH_S3C2410
+ select S3C_DMA
help
S3C2410 DMA support. This is needed for drivers like sound which
use the S3C2410's DMA system to move data to and from the
diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 84bbbc60234..3b122f6a7c4 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -44,8 +44,6 @@ static int dma_channels;
static struct s3c24xx_dma_selection dma_sel;
-/* dma channel state information */
-struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS];
/* debugging functions */
@@ -135,21 +133,6 @@ dmadbg_showregs(const char *fname, int line, struct s3c2410_dma_chan *chan)
#define dbg_showchan(chan) do { } while(0)
#endif /* CONFIG_S3C2410_DMA_DEBUG */
-static struct s3c2410_dma_chan *dma_chan_map[DMACH_MAX];
-
-/* lookup_dma_channel
- *
- * change the dma channel number given into a real dma channel id
-*/
-
-static struct s3c2410_dma_chan *lookup_dma_channel(unsigned int channel)
-{
- if (channel & DMACH_LOW_LEVEL)
- return &s3c2410_chans[channel & ~DMACH_LOW_LEVEL];
- else
- return dma_chan_map[channel];
-}
-
/* s3c2410_dma_stats_timeout
*
* Update DMA stats from timeout info
@@ -214,8 +197,6 @@ s3c2410_dma_waitforload(struct s3c2410_dma_chan *chan, int line)
return 0;
}
-
-
/* s3c2410_dma_loadbuffer
*
* load a buffer, and update the channel state
@@ -453,7 +434,7 @@ s3c2410_dma_canload(struct s3c2410_dma_chan *chan)
int s3c2410_dma_enqueue(unsigned int channel, void *id,
dma_addr_t data, int size)
{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
+ struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel);
struct s3c2410_dma_buf *buf;
unsigned long flags;
@@ -804,7 +785,7 @@ EXPORT_SYMBOL(s3c2410_dma_request);
int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *client)
{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
+ struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel);
unsigned long flags;
if (chan == NULL)
@@ -836,7 +817,7 @@ int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *client)
chan->irq_claimed = 0;
if (!(channel & DMACH_LOW_LEVEL))
- dma_chan_map[channel] = NULL;
+ s3c_dma_chan_map[channel] = NULL;
local_irq_restore(flags);
@@ -995,7 +976,7 @@ static int s3c2410_dma_started(struct s3c2410_dma_chan *chan)
int
s3c2410_dma_ctrl(unsigned int channel, enum s3c2410_chan_op op)
{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
+ struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel);
if (chan == NULL)
return -EINVAL;
@@ -1043,7 +1024,7 @@ EXPORT_SYMBOL(s3c2410_dma_ctrl);
int s3c2410_dma_config(unsigned int channel,
int xferunit)
{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
+ struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel);
unsigned int dcon;
pr_debug("%s: chan=%d, xfer_unit=%d, dcon=%08x\n",
@@ -1114,7 +1095,7 @@ EXPORT_SYMBOL(s3c2410_dma_config);
int s3c2410_dma_setflags(unsigned int channel, unsigned int flags)
{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
+ struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel);
if (chan == NULL)
return -EINVAL;
@@ -1129,42 +1110,6 @@ int s3c2410_dma_setflags(unsigned int channel, unsigned int flags)
EXPORT_SYMBOL(s3c2410_dma_setflags);
-/* do we need to protect the settings of the fields from
- * irq?
-*/
-
-int s3c2410_dma_set_opfn(unsigned int channel, s3c2410_dma_opfn_t rtn)
-{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
-
- if (chan == NULL)
- return -EINVAL;
-
- pr_debug("%s: chan=%p, op rtn=%p\n", __func__, chan, rtn);
-
- chan->op_fn = rtn;
-
- return 0;
-}
-
-EXPORT_SYMBOL(s3c2410_dma_set_opfn);
-
-int s3c2410_dma_set_buffdone_fn(unsigned int channel, s3c2410_dma_cbfn_t rtn)
-{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
-
- if (chan == NULL)
- return -EINVAL;
-
- pr_debug("%s: chan=%p, callback rtn=%p\n", __func__, chan, rtn);
-
- chan->callback_fn = rtn;
-
- return 0;
-}
-
-EXPORT_SYMBOL(s3c2410_dma_set_buffdone_fn);
-
/* s3c2410_dma_devconfig
*
* configure the dma source/destination hardware type and address
@@ -1179,7 +1124,7 @@ int s3c2410_dma_devconfig(int channel,
enum s3c2410_dmasrc source,
unsigned long devaddr)
{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
+ struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel);
unsigned int hwcfg;
if (chan == NULL)
@@ -1250,7 +1195,7 @@ EXPORT_SYMBOL(s3c2410_dma_devconfig);
int s3c2410_dma_getposition(unsigned int channel, dma_addr_t *src, dma_addr_t *dst)
{
- struct s3c2410_dma_chan *chan = lookup_dma_channel(channel);
+ struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel);
if (chan == NULL)
return -EINVAL;
@@ -1508,7 +1453,7 @@ static struct s3c2410_dma_chan *s3c2410_dma_map_channel(int channel)
dmach = &s3c2410_chans[ch];
dmach->map = ch_map;
dmach->req_ch = channel;
- dma_chan_map[channel] = dmach;
+ s3c_dma_chan_map[channel] = dmach;
/* select the channel */
diff --git a/arch/arm/plat-s3c24xx/include/plat/dma-core.h b/arch/arm/plat-s3c24xx/include/plat/dma-plat.h
index 9d00aed2304..9565ead1bc9 100644
--- a/arch/arm/plat-s3c24xx/include/plat/dma-core.h
+++ b/arch/arm/plat-s3c24xx/include/plat/dma-plat.h
@@ -1,4 +1,4 @@
-/* linux/arch/arm/plat-s3c24xx/include/plat/dma-core.h
+/* linux/arch/arm/plat-s3c24xx/include/plat/dma-plat.h
*
* Copyright (C) 2006 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
@@ -10,8 +10,10 @@
* published by the Free Software Foundation.
*/
+#include <plat/dma-core.h>
+
extern struct sysdev_class dma_sysclass;
-extern struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS];
+extern struct s3c2410_dma_chan s3c2410_chans[S3C_DMA_CHANNELS];
#define DMA_CH_VALID (1<<31)
#define DMA_CH_NEVER (1<<30)
@@ -31,8 +33,8 @@ struct s3c24xx_dma_map {
const char *name;
struct s3c24xx_dma_addr hw_addr;
- unsigned long channels[S3C2410_DMA_CHANNELS];
- unsigned long channels_rx[S3C2410_DMA_CHANNELS];
+ unsigned long channels[S3C_DMA_CHANNELS];
+ unsigned long channels_rx[S3C_DMA_CHANNELS];
};
struct s3c24xx_dma_selection {
@@ -58,7 +60,7 @@ extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel);
*/
struct s3c24xx_dma_order_ch {
- unsigned int list[S3C2410_DMA_CHANNELS]; /* list of channels */
+ unsigned int list[S3C_DMA_CHANNELS]; /* list of channels */
unsigned int flags; /* flags */
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-16 20:43:31 +0000