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-rw-r--r--arch/arm/mach-s3c2410/dma.c88
-rw-r--r--include/asm-arm/arch-s3c2410/dma.h80
2 files changed, 80 insertions, 88 deletions
diff --git a/arch/arm/mach-s3c2410/dma.c b/arch/arm/mach-s3c2410/dma.c
index 2585545..cc92a7b 100644
--- a/arch/arm/mach-s3c2410/dma.c
+++ b/arch/arm/mach-s3c2410/dma.c
@@ -60,7 +60,7 @@ static void __iomem *dma_base;
static kmem_cache_t *dma_kmem;
/* dma channel state information */
-s3c2410_dma_chan_t s3c2410_chans[S3C2410_DMA_CHANNELS];
+struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS];
/* debugging functions */
@@ -74,7 +74,7 @@ s3c2410_dma_chan_t s3c2410_chans[S3C2410_DMA_CHANNELS];
#define dma_wrreg(chan, reg, val) writel((val), (chan)->regs + (reg))
#else
static inline void
-dma_wrreg(s3c2410_dma_chan_t *chan, int reg, unsigned long val)
+dma_wrreg(struct s3c2410_dma_chan *chan, int reg, unsigned long val)
{
pr_debug("writing %08x to register %08x\n",(unsigned int)val,reg);
writel(val, dma_regaddr(chan, reg));
@@ -102,7 +102,7 @@ struct s3c2410_dma_regstate {
*/
static void
-dmadbg_capture(s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs)
+dmadbg_capture(struct s3c2410_dma_chan *chan, struct s3c2410_dma_regstate *regs)
{
regs->dcsrc = dma_rdreg(chan, S3C2410_DMA_DCSRC);
regs->disrc = dma_rdreg(chan, S3C2410_DMA_DISRC);
@@ -112,7 +112,7 @@ dmadbg_capture(s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs)
}
static void
-dmadbg_dumpregs(const char *fname, int line, s3c2410_dma_chan_t *chan,
+dmadbg_dumpregs(const char *fname, int line, struct s3c2410_dma_chan *chan,
struct s3c2410_dma_regstate *regs)
{
printk(KERN_DEBUG "dma%d: %s:%d: DCSRC=%08lx, DISRC=%08lx, DSTAT=%08lx DMT=%02lx, DCON=%08lx\n",
@@ -122,7 +122,7 @@ dmadbg_dumpregs(const char *fname, int line, s3c2410_dma_chan_t *chan,
}
static void
-dmadbg_showchan(const char *fname, int line, s3c2410_dma_chan_t *chan)
+dmadbg_showchan(const char *fname, int line, struct s3c2410_dma_chan *chan)
{
struct s3c2410_dma_regstate state;
@@ -136,7 +136,7 @@ dmadbg_showchan(const char *fname, int line, s3c2410_dma_chan_t *chan)
}
static void
-dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan)
+dmadbg_showregs(const char *fname, int line, struct s3c2410_dma_chan *chan)
{
struct s3c2410_dma_regstate state;
@@ -164,7 +164,7 @@ dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan)
*/
static void
-s3c2410_dma_stats_timeout(s3c2410_dma_stats_t *stats, int val)
+s3c2410_dma_stats_timeout(struct s3c2410_dma_stats *stats, int val)
{
if (stats == NULL)
return;
@@ -183,7 +183,7 @@ s3c2410_dma_stats_timeout(s3c2410_dma_stats_t *stats, int val)
*/
static int
-s3c2410_dma_waitforload(s3c2410_dma_chan_t *chan, int line)
+s3c2410_dma_waitforload(struct s3c2410_dma_chan *chan, int line)
{
int timeout = chan->load_timeout;
int took;
@@ -230,8 +230,8 @@ s3c2410_dma_waitforload(s3c2410_dma_chan_t *chan, int line)
*/
static inline int
-s3c2410_dma_loadbuffer(s3c2410_dma_chan_t *chan,
- s3c2410_dma_buf_t *buf)
+s3c2410_dma_loadbuffer(struct s3c2410_dma_chan *chan,
+ struct s3c2410_dma_buf *buf)
{
unsigned long reload;
@@ -304,7 +304,7 @@ s3c2410_dma_loadbuffer(s3c2410_dma_chan_t *chan,
*/
static void
-s3c2410_dma_call_op(s3c2410_dma_chan_t *chan, s3c2410_chan_op_t op)
+s3c2410_dma_call_op(struct s3c2410_dma_chan *chan, enum s3c2410_chan_op op)
{
if (chan->op_fn != NULL) {
(chan->op_fn)(chan, op);
@@ -318,8 +318,8 @@ s3c2410_dma_call_op(s3c2410_dma_chan_t *chan, s3c2410_chan_op_t op)
*/
static inline void
-s3c2410_dma_buffdone(s3c2410_dma_chan_t *chan, s3c2410_dma_buf_t *buf,
- s3c2410_dma_buffresult_t result)
+s3c2410_dma_buffdone(struct s3c2410_dma_chan *chan, struct s3c2410_dma_buf *buf,
+ enum s3c2410_dma_buffresult result)
{
pr_debug("callback_fn=%p, buf=%p, id=%p, size=%d, result=%d\n",
chan->callback_fn, buf, buf->id, buf->size, result);
@@ -334,7 +334,7 @@ s3c2410_dma_buffdone(s3c2410_dma_chan_t *chan, s3c2410_dma_buf_t *buf,
* start a dma channel going
*/
-static int s3c2410_dma_start(s3c2410_dma_chan_t *chan)
+static int s3c2410_dma_start(struct s3c2410_dma_chan *chan)
{
unsigned long tmp;
unsigned long flags;
@@ -430,7 +430,7 @@ static int s3c2410_dma_start(s3c2410_dma_chan_t *chan)
*/
static int
-s3c2410_dma_canload(s3c2410_dma_chan_t *chan)
+s3c2410_dma_canload(struct s3c2410_dma_chan *chan)
{
if (chan->load_state == S3C2410_DMALOAD_NONE ||
chan->load_state == S3C2410_DMALOAD_1RUNNING)
@@ -460,8 +460,8 @@ s3c2410_dma_canload(s3c2410_dma_chan_t *chan)
int s3c2410_dma_enqueue(unsigned int channel, void *id,
dma_addr_t data, int size)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
- s3c2410_dma_buf_t *buf;
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_buf *buf;
unsigned long flags;
check_channel(channel);
@@ -540,7 +540,7 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id,
EXPORT_SYMBOL(s3c2410_dma_enqueue);
static inline void
-s3c2410_dma_freebuf(s3c2410_dma_buf_t *buf)
+s3c2410_dma_freebuf(struct s3c2410_dma_buf *buf)
{
int magicok = (buf->magic == BUF_MAGIC);
@@ -560,7 +560,7 @@ s3c2410_dma_freebuf(s3c2410_dma_buf_t *buf)
*/
static inline void
-s3c2410_dma_lastxfer(s3c2410_dma_chan_t *chan)
+s3c2410_dma_lastxfer(struct s3c2410_dma_chan *chan)
{
pr_debug("dma%d: s3c2410_dma_lastxfer: load_state %d\n",
chan->number, chan->load_state);
@@ -601,8 +601,8 @@ s3c2410_dma_lastxfer(s3c2410_dma_chan_t *chan)
static irqreturn_t
s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs)
{
- s3c2410_dma_chan_t *chan = (s3c2410_dma_chan_t *)devpw;
- s3c2410_dma_buf_t *buf;
+ struct s3c2410_dma_chan *chan = (struct s3c2410_dma_chan *)devpw;
+ struct s3c2410_dma_buf *buf;
buf = chan->curr;
@@ -731,10 +731,10 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs)
* get control of an dma channel
*/
-int s3c2410_dma_request(unsigned int channel, s3c2410_dma_client_t *client,
+int s3c2410_dma_request(unsigned int channel, struct s3c2410_dma_client *client,
void *dev)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
unsigned long flags;
int err;
@@ -807,9 +807,9 @@ EXPORT_SYMBOL(s3c2410_dma_request);
* allowed to go through.
*/
-int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *client)
+int s3c2410_dma_free(dmach_t channel, struct s3c2410_dma_client *client)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
unsigned long flags;
check_channel(channel);
@@ -846,7 +846,7 @@ int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *client)
EXPORT_SYMBOL(s3c2410_dma_free);
-static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan)
+static int s3c2410_dma_dostop(struct s3c2410_dma_chan *chan)
{
unsigned long tmp;
unsigned long flags;
@@ -880,7 +880,7 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan)
return 0;
}
-void s3c2410_dma_waitforstop(s3c2410_dma_chan_t *chan)
+void s3c2410_dma_waitforstop(struct s3c2410_dma_chan *chan)
{
unsigned long tmp;
unsigned int timeout = 0x10000;
@@ -901,9 +901,9 @@ void s3c2410_dma_waitforstop(s3c2410_dma_chan_t *chan)
* stop the channel, and remove all current and pending transfers
*/
-static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan)
+static int s3c2410_dma_flush(struct s3c2410_dma_chan *chan)
{
- s3c2410_dma_buf_t *buf, *next;
+ struct s3c2410_dma_buf *buf, *next;
unsigned long flags;
pr_debug("%s: chan %p (%d)\n", __FUNCTION__, chan, chan->number);
@@ -958,7 +958,7 @@ static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan)
}
int
-s3c2410_dma_started(s3c2410_dma_chan_t *chan)
+s3c2410_dma_started(struct s3c2410_dma_chan *chan)
{
unsigned long flags;
@@ -995,9 +995,9 @@ s3c2410_dma_started(s3c2410_dma_chan_t *chan)
}
int
-s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op)
+s3c2410_dma_ctrl(dmach_t channel, enum s3c2410_chan_op op)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
@@ -1046,7 +1046,7 @@ int s3c2410_dma_config(dmach_t channel,
int xferunit,
int dcon)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
pr_debug("%s: chan=%d, xfer_unit=%d, dcon=%08x\n",
__FUNCTION__, channel, xferunit, dcon);
@@ -1086,7 +1086,7 @@ EXPORT_SYMBOL(s3c2410_dma_config);
int s3c2410_dma_setflags(dmach_t channel, unsigned int flags)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
@@ -1106,7 +1106,7 @@ EXPORT_SYMBOL(s3c2410_dma_setflags);
int s3c2410_dma_set_opfn(dmach_t channel, s3c2410_dma_opfn_t rtn)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
@@ -1121,7 +1121,7 @@ EXPORT_SYMBOL(s3c2410_dma_set_opfn);
int s3c2410_dma_set_buffdone_fn(dmach_t channel, s3c2410_dma_cbfn_t rtn)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
@@ -1149,11 +1149,11 @@ EXPORT_SYMBOL(s3c2410_dma_set_buffdone_fn);
*/
int s3c2410_dma_devconfig(int channel,
- s3c2410_dmasrc_t source,
+ enum s3c2410_dmasrc source,
int hwcfg,
unsigned long devaddr)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
@@ -1200,7 +1200,7 @@ EXPORT_SYMBOL(s3c2410_dma_devconfig);
int s3c2410_dma_getposition(dmach_t channel, dma_addr_t *src, dma_addr_t *dst)
{
- s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
+ struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
@@ -1222,7 +1222,7 @@ EXPORT_SYMBOL(s3c2410_dma_getposition);
static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state)
{
- s3c2410_dma_chan_t *cp = container_of(dev, s3c2410_dma_chan_t, dev);
+ struct s3c2410_dma_chan *cp = container_of(dev, struct s3c2410_dma_chan, dev);
printk(KERN_DEBUG "suspending dma channel %d\n", cp->number);
@@ -1262,7 +1262,7 @@ static struct sysdev_class dma_sysclass = {
static void s3c2410_dma_cache_ctor(void *p, kmem_cache_t *c, unsigned long f)
{
- memset(p, 0, sizeof(s3c2410_dma_buf_t));
+ memset(p, 0, sizeof(struct s3c2410_dma_buf));
}
@@ -1270,7 +1270,7 @@ static void s3c2410_dma_cache_ctor(void *p, kmem_cache_t *c, unsigned long f)
static int __init s3c2410_init_dma(void)
{
- s3c2410_dma_chan_t *cp;
+ struct s3c2410_dma_chan *cp;
int channel;
int ret;
@@ -1288,7 +1288,7 @@ static int __init s3c2410_init_dma(void)
goto err;
}
- dma_kmem = kmem_cache_create("dma_desc", sizeof(s3c2410_dma_buf_t), 0,
+ dma_kmem = kmem_cache_create("dma_desc", sizeof(struct s3c2410_dma_buf), 0,
SLAB_HWCACHE_ALIGN,
s3c2410_dma_cache_ctor, NULL);
@@ -1301,7 +1301,7 @@ static int __init s3c2410_init_dma(void)
for (channel = 0; channel < S3C2410_DMA_CHANNELS; channel++) {
cp = &s3c2410_chans[channel];
- memset(cp, 0, sizeof(s3c2410_dma_chan_t));
+ memset(cp, 0, sizeof(struct s3c2410_dma_chan));
/* dma channel irqs are in order.. */
cp->number = channel;
diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h
index 7463fd5..46e6540 100644
--- a/include/asm-arm/arch-s3c2410/dma.h
+++ b/include/asm-arm/arch-s3c2410/dma.h
@@ -35,14 +35,14 @@
/* types */
-typedef enum {
+enum s3c2410_dma_state {
S3C2410_DMA_IDLE,
S3C2410_DMA_RUNNING,
S3C2410_DMA_PAUSED
-} s3c2410_dma_state_t;
+};
-/* s3c2410_dma_loadst_t
+/* enum s3c2410_dma_loadst
*
* This represents the state of the DMA engine, wrt to the loaded / running
* transfers. Since we don't have any way of knowing exactly the state of
@@ -70,34 +70,32 @@ typedef enum {
* currently running.
*/
-typedef enum {
+enum s3c2410_dma_loadst {
S3C2410_DMALOAD_NONE,
S3C2410_DMALOAD_1LOADED,
S3C2410_DMALOAD_1RUNNING,
S3C2410_DMALOAD_1LOADED_1RUNNING,
-} s3c2410_dma_loadst_t;
+};
-typedef enum {
+enum s3c2410_dma_buffresult {
S3C2410_RES_OK,
S3C2410_RES_ERR,
S3C2410_RES_ABORT
-} s3c2410_dma_buffresult_t;
-
+};
-typedef enum s3c2410_dmasrc_e s3c2410_dmasrc_t;
-enum s3c2410_dmasrc_e {
+enum s3c2410_dmasrc {
S3C2410_DMASRC_HW, /* source is memory */
S3C2410_DMASRC_MEM /* source is hardware */
};
-/* enum s3c2410_chan_op_e
+/* enum s3c2410_chan_op
*
* operation codes passed to the DMA code by the user, and also used
* to inform the current channel owner of any changes to the system state
*/
-enum s3c2410_chan_op_e {
+enum s3c2410_chan_op {
S3C2410_DMAOP_START,
S3C2410_DMAOP_STOP,
S3C2410_DMAOP_PAUSE,
@@ -107,8 +105,6 @@ enum s3c2410_chan_op_e {
S3C2410_DMAOP_STARTED, /* indicate channel started */
};
-typedef enum s3c2410_chan_op_e s3c2410_chan_op_t;
-
/* flags */
#define S3C2410_DMAF_SLOW (1<<0) /* slow, so don't worry about
@@ -117,22 +113,19 @@ typedef enum s3c2410_chan_op_e s3c2410_chan_op_t;
/* dma buffer */
-typedef struct s3c2410_dma_buf_s s3c2410_dma_buf_t;
-
struct s3c2410_dma_client {
char *name;
};
-typedef struct s3c2410_dma_client s3c2410_dma_client_t;
-
/* s3c2410_dma_buf_s
*
* internally used buffer structure to describe a queued or running
* buffer.
*/
-struct s3c2410_dma_buf_s {
- s3c2410_dma_buf_t *next;
+struct s3c2410_dma_buf;
+struct s3c2410_dma_buf {
+ struct s3c2410_dma_buf *next;
int magic; /* magic */
int size; /* buffer size in bytes */
dma_addr_t data; /* start of DMA data */
@@ -142,20 +135,21 @@ struct s3c2410_dma_buf_s {
/* [1] is this updated for both recv/send modes? */
-typedef struct s3c2410_dma_chan_s s3c2410_dma_chan_t;
+struct s3c2410_dma_chan;
/* s3c2410_dma_cbfn_t
*
* buffer callback routine type
*/
-typedef void (*s3c2410_dma_cbfn_t)(s3c2410_dma_chan_t *, void *buf, int size,
- s3c2410_dma_buffresult_t result);
+typedef void (*s3c2410_dma_cbfn_t)(struct s3c2410_dma_chan *,
+ void *buf, int size,
+ enum s3c2410_dma_buffresult result);
-typedef int (*s3c2410_dma_opfn_t)(s3c2410_dma_chan_t *,
- s3c2410_chan_op_t );
+typedef int (*s3c2410_dma_opfn_t)(struct s3c2410_dma_chan *,
+ enum s3c2410_chan_op );
-struct s3c2410_dma_stats_s {
+struct s3c2410_dma_stats {
unsigned long loads;
unsigned long timeout_longest;
unsigned long timeout_shortest;
@@ -163,14 +157,12 @@ struct s3c2410_dma_stats_s {
unsigned long timeout_failed;
};
-typedef struct s3c2410_dma_stats_s s3c2410_dma_stats_t;
-
-/* struct s3c2410_dma_chan_s
+/* struct s3c2410_dma_chan
*
* full state information for each DMA channel
*/
-struct s3c2410_dma_chan_s {
+struct s3c2410_dma_chan {
/* channel state flags and information */
unsigned char number; /* number of this dma channel */
unsigned char in_use; /* channel allocated */
@@ -180,12 +172,12 @@ struct s3c2410_dma_chan_s {
/* channel state */
- s3c2410_dma_state_t state;
- s3c2410_dma_loadst_t load_state;
- s3c2410_dma_client_t *client;
+ enum s3c2410_dma_state state;
+ enum s3c2410_dma_loadst load_state;
+ struct s3c2410_dma_client *client;
/* channel configuration */
- s3c2410_dmasrc_t source;
+ enum s3c2410_dmasrc source;
unsigned long dev_addr;
unsigned long load_timeout;
unsigned int flags; /* channel flags */
@@ -201,20 +193,20 @@ struct s3c2410_dma_chan_s {
s3c2410_dma_opfn_t op_fn; /* channel operation callback */
/* stats gathering */
- s3c2410_dma_stats_t *stats;
- s3c2410_dma_stats_t stats_store;
+ struct s3c2410_dma_stats *stats;
+ struct s3c2410_dma_stats stats_store;
/* buffer list and information */
- s3c2410_dma_buf_t *curr; /* current dma buffer */
- s3c2410_dma_buf_t *next; /* next buffer to load */
- s3c2410_dma_buf_t *end; /* end of queue */
+ struct s3c2410_dma_buf *curr; /* current dma buffer */
+ struct s3c2410_dma_buf *next; /* next buffer to load */
+ struct s3c2410_dma_buf *end; /* end of queue */
/* system device */
struct sys_device dev;
};
/* the currently allocated channel information */
-extern s3c2410_dma_chan_t s3c2410_chans[];
+extern struct s3c2410_dma_chan s3c2410_chans[];
/* note, we don't really use dma_device_t at the moment */
typedef unsigned long dma_device_t;
@@ -227,7 +219,7 @@ typedef unsigned long dma_device_t;
*/
extern int s3c2410_dma_request(dmach_t channel,
- s3c2410_dma_client_t *, void *dev);
+ struct s3c2410_dma_client *, void *dev);
/* s3c2410_dma_ctrl
@@ -235,7 +227,7 @@ extern int s3c2410_dma_request(dmach_t channel,
* change the state of the dma channel
*/
-extern int s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op);
+extern int s3c2410_dma_ctrl(dmach_t channel, enum s3c2410_chan_op op);
/* s3c2410_dma_setflags
*
@@ -250,7 +242,7 @@ extern int s3c2410_dma_setflags(dmach_t channel,
* free the dma channel (will also abort any outstanding operations)
*/
-extern int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *);
+extern int s3c2410_dma_free(dmach_t channel, struct s3c2410_dma_client *);
/* s3c2410_dma_enqueue
*
@@ -274,7 +266,7 @@ extern int s3c2410_dma_config(dmach_t channel, int xferunit, int dcon);
* configure the device we're talking to
*/
-extern int s3c2410_dma_devconfig(int channel, s3c2410_dmasrc_t source,
+extern int s3c2410_dma_devconfig(int channel, enum s3c2410_dmasrc source,
int hwcfg, unsigned long devaddr);
/* s3c2410_dma_getposition
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