Existing EDMA driver does not take care of multiple EDMA channel
controller instances. An upcoming architecture from TI has 2 EDMA
channel controller instances. This patch adds support for multiple
EDMA CC instances.
With this patch, user needs to pass the EDMA channel number as
EDMA_CTLR_CHAN(ctlr, chan), through IORESOURCE_DMA resources.
The edma_alloc_channel api returns the channel number in LSB and
controller number in MSB. This return value is accepted by the
other EDMA apis.
Drivers using EDMA have to pass controller number as an argument
along with slot number required. The macros EDMA_CHAN and EDMA_CTLR
will extract the channel/slot number and the controller number from
the value returned by edma_alloc_channel.
This patch has been tested on DM644x.
Signed-off-by: Sudhakar Rajashekhara <sudhakar....@ti.com>
---
arch/arm/mach-davinci/dm355.c | 5 +-
arch/arm/mach-davinci/dm644x.c | 5 +-
arch/arm/mach-davinci/dma.c | 577 ++++++++++++++++++-----------
arch/arm/mach-davinci/include/mach/edma.h | 36 ++-
4 files changed, 403 insertions(+), 220 deletions(-)
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 5f31649..1281000 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -479,12 +479,13 @@ static struct edma_soc_info dm355_edma_info = {
.n_region = 4,
.n_slot = 128,
.n_tc = 2,
+ .n_cc = 1,
.noevent = dma_chan_dm355_no_event,
};
static struct resource edma_resources[] = {
{
- .name = "edma_cc",
+ .name = "edma_cc0",
.start = 0x01c00000,
.end = 0x01c00000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
@@ -514,7 +515,7 @@ static struct resource edma_resources[] = {
static struct platform_device dm355_edma_device = {
.name = "edma",
- .id = -1,
+ .id = 0,
.dev.platform_data = &dm355_edma_info,
.num_resources = ARRAY_SIZE(edma_resources),
.resource = edma_resources,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 6a08568..922d7e0 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -402,12 +402,13 @@ static struct edma_soc_info dm644x_edma_info = {
.n_region = 4,
.n_slot = 128,
.n_tc = 2,
+ .n_cc = 1,
.noevent = dma_chan_dm644x_no_event,
};
static struct resource edma_resources[] = {
{
- .name = "edma_cc",
+ .name = "edma_cc0",
.start = 0x01c00000,
.end = 0x01c00000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
@@ -437,7 +438,7 @@ static struct resource edma_resources[] = {
static struct platform_device dm644x_edma_device = {
.name = "edma",
- .id = -1,
+ .id = 0,
.dev.platform_data = &dm644x_edma_info,
.num_resources = ARRAY_SIZE(edma_resources),
.resource = edma_resources,
diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c
index 1f58631..a3034ab 100644
--- a/arch/arm/mach-davinci/dma.c
+++ b/arch/arm/mach-davinci/dma.c
@@ -104,128 +104,123 @@
#define PARM_OFFSET(param_no) (EDMA_PARM + ((param_no) << 5))
-#define EDMA_MAX_DMACH 64
-#define EDMA_MAX_PARAMENTRY 512
-#define EDMA_MAX_EVQUE 2 /* FIXME too small */
+struct edma edma_info[EDMA_MAX_CC];
+static unsigned irq_start[EDMA_MAX_CC];
+static unsigned irq_end[EDMA_MAX_CC];
/*****************************************************************************/
-static __iomem void *edmacc_regs_base;
+static __iomem void *edmacc_regs_base[EDMA_MAX_CC];
-static inline unsigned int edma_read(int offset)
+static inline unsigned int edma_read(unsigned ctlr, int offset)
{
- return (unsigned int)__raw_readl(edmacc_regs_base + offset);
+ return (unsigned int)__raw_readl(edmacc_regs_base[ctlr] + offset);
}
-static inline void edma_write(int offset, int val)
+static inline void edma_write(unsigned ctlr, int offset, int val)
{
- __raw_writel(val, edmacc_regs_base + offset);
+ __raw_writel(val, edmacc_regs_base[ctlr] + offset);
}
-static inline void edma_modify(int offset, unsigned and, unsigned or)
+static inline void edma_modify(unsigned ctlr, int offset, unsigned and,
+ unsigned or)
{
- unsigned val = edma_read(offset);
+ unsigned val = edma_read(ctlr, offset);
val &= and;
val |= or;
- edma_write(offset, val);
+ edma_write(ctlr, offset, val);
}
-static inline void edma_and(int offset, unsigned and)
+static inline void edma_and(unsigned ctlr, int offset, unsigned and)
{
- unsigned val = edma_read(offset);
+ unsigned val = edma_read(ctlr, offset);
val &= and;
- edma_write(offset, val);
+ edma_write(ctlr, offset, val);
}
-static inline void edma_or(int offset, unsigned or)
+static inline void edma_or(unsigned ctlr, int offset, unsigned or)
{
- unsigned val = edma_read(offset);
+ unsigned val = edma_read(ctlr, offset);
val |= or;
- edma_write(offset, val);
+ edma_write(ctlr, offset, val);
}
-static inline unsigned int edma_read_array(int offset, int i)
+static inline unsigned int edma_read_array(unsigned ctlr, int offset, int i)
{
- return edma_read(offset + (i << 2));
+ return edma_read(ctlr, offset + (i << 2));
}
-static inline void edma_write_array(int offset, int i, unsigned val)
+static inline void edma_write_array(unsigned ctlr, int offset, int i,
+ unsigned val)
{
- edma_write(offset + (i << 2), val);
+ edma_write(ctlr, offset + (i << 2), val);
}
-static inline void edma_modify_array(int offset, int i,
+static inline void edma_modify_array(unsigned ctlr, int offset, int i,
unsigned and, unsigned or)
{
- edma_modify(offset + (i << 2), and, or);
+ edma_modify(ctlr, offset + (i << 2), and, or);
}
-static inline void edma_or_array(int offset, int i, unsigned or)
+static inline void edma_or_array(unsigned ctlr, int offset, int i, unsigned or)
{
- edma_or(offset + (i << 2), or);
+ edma_or(ctlr, offset + (i << 2), or);
}
-static inline void edma_or_array2(int offset, int i, int j, unsigned or)
+static inline void edma_or_array2(unsigned ctlr, int offset, int i, int j,
+ unsigned or)
{
- edma_or(offset + ((i*2 + j) << 2), or);
+ edma_or(ctlr, offset + ((i*2 + j) << 2), or);
}
-static inline void edma_write_array2(int offset, int i, int j, unsigned val)
+static inline void edma_write_array2(unsigned ctlr, int offset, int i, int j,
+ unsigned val)
{
- edma_write(offset + ((i*2 + j) << 2), val);
+ edma_write(ctlr, offset + ((i*2 + j) << 2), val);
}
-static inline unsigned int edma_shadow0_read(int offset)
+static inline unsigned int edma_shadow0_read(unsigned ctlr, int offset)
{
- return edma_read(EDMA_SHADOW0 + offset);
+ return edma_read(ctlr, EDMA_SHADOW0 + offset);
}
-static inline unsigned int edma_shadow0_read_array(int offset, int i)
+static inline unsigned int edma_shadow0_read_array(unsigned ctlr, int offset,
+ int i)
{
- return edma_read(EDMA_SHADOW0 + offset + (i << 2));
+ return edma_read(ctlr, EDMA_SHADOW0 + offset + (i << 2));
}
-static inline void edma_shadow0_write(int offset, unsigned val)
+static inline void edma_shadow0_write(unsigned ctlr, int offset, unsigned val)
{
- edma_write(EDMA_SHADOW0 + offset, val);
+ edma_write(ctlr, EDMA_SHADOW0 + offset, val);
}
-static inline void edma_shadow0_write_array(int offset, int i, unsigned val)
+static inline void edma_shadow0_write_array(unsigned ctlr, int offset, int i,
+ unsigned val)
{
- edma_write(EDMA_SHADOW0 + offset + (i << 2), val);
+ edma_write(ctlr, EDMA_SHADOW0 + offset + (i << 2), val);
}
-static inline unsigned int edma_parm_read(int offset, int param_no)
+static inline unsigned int edma_parm_read(unsigned ctlr, int offset,
+ int param_no)
{
- return edma_read(EDMA_PARM + offset + (param_no << 5));
+ return edma_read(ctlr, EDMA_PARM + offset + (param_no << 5));
}
-static inline void edma_parm_write(int offset, int param_no, unsigned val)
+static inline void edma_parm_write(unsigned ctlr, int offset, int param_no,
+ unsigned val)
{
- edma_write(EDMA_PARM + offset + (param_no << 5), val);
+ edma_write(ctlr, EDMA_PARM + offset + (param_no << 5), val);
}
-static inline void edma_parm_modify(int offset, int param_no,
+static inline void edma_parm_modify(unsigned ctlr, int offset, int param_no,
unsigned and, unsigned or)
{
- edma_modify(EDMA_PARM + offset + (param_no << 5), and, or);
+ edma_modify(ctlr, EDMA_PARM + offset + (param_no << 5), and, or);
}
-static inline void edma_parm_and(int offset, int param_no, unsigned and)
+static inline void edma_parm_and(unsigned ctlr, int offset, int param_no,
+ unsigned and)
{
- edma_and(EDMA_PARM + offset + (param_no << 5), and);
+ edma_and(ctlr, EDMA_PARM + offset + (param_no << 5), and);
}
-static inline void edma_parm_or(int offset, int param_no, unsigned or)
+static inline void edma_parm_or(unsigned ctlr, int offset, int param_no,
+ unsigned or)
{
- edma_or(EDMA_PARM + offset + (param_no << 5), or);
+ edma_or(ctlr, EDMA_PARM + offset + (param_no << 5), or);
}
/*****************************************************************************/
-/* actual number of DMA channels and slots on this silicon */
-static unsigned num_channels;
-static unsigned num_slots;
-
static struct dma_interrupt_data {
void (*callback)(unsigned channel, unsigned short ch_status, void
*data);
void *data;
} intr_data[EDMA_MAX_DMACH];
-/* The edma_inuse bit for each PaRAM slot is clear unless the
- * channel is in use ... by ARM or DSP, for QDMA, or whatever.
- */
-static DECLARE_BITMAP(edma_inuse, EDMA_MAX_PARAMENTRY);
-
-/* The edma_noevent bit for each channel is clear unless
- * it doesn't trigger DMA events on this platform. It uses a
- * bit of SOC-specific initialization code.
- */
-static DECLARE_BITMAP(edma_noevent, EDMA_MAX_DMACH);
-
/* dummy param set used to (re)initialize parameter RAM slots */
static const struct edmacc_param dummy_paramset = {
.link_bcntrld = 0xffff,
@@ -250,7 +245,8 @@ queue_priority_mapping[EDMA_MAX_EVQUE + 1][2] = {
/*****************************************************************************/
-static void map_dmach_queue(unsigned ch_no, enum dma_event_q queue_no)
+static void map_dmach_queue(unsigned ctlr, unsigned ch_no,
+ enum dma_event_q queue_no)
{
int bit = (ch_no & 0x7) * 4;
@@ -259,20 +255,22 @@ static void map_dmach_queue(unsigned ch_no, enum
dma_event_q queue_no)
queue_no = EVENTQ_1;
queue_no &= 7;
- edma_modify_array(EDMA_DMAQNUM, (ch_no >> 3),
+ edma_modify_array(ctlr, EDMA_DMAQNUM, (ch_no >> 3),
~(0x7 << bit), queue_no << bit);
}
-static void __init map_queue_tc(int queue_no, int tc_no)
+static void __init map_queue_tc(unsigned ctlr, int queue_no, int tc_no)
{
int bit = queue_no * 4;
- edma_modify(EDMA_QUETCMAP, ~(0x7 << bit), ((tc_no & 0x7) << bit));
+ edma_modify(ctlr, EDMA_QUETCMAP, ~(0x7 << bit), ((tc_no & 0x7) << bit));
}
-static void __init assign_priority_to_queue(int queue_no, int priority)
+static void __init assign_priority_to_queue(unsigned ctlr, int queue_no,
+ int priority)
{
int bit = queue_no * 4;
- edma_modify(EDMA_QUEPRI, ~(0x7 << bit), ((priority & 0x7) << bit));
+ edma_modify(ctlr, EDMA_QUEPRI, ~(0x7 << bit),
+ ((priority & 0x7) << bit));
}
static inline void
@@ -280,8 +278,13 @@ setup_dma_interrupt(unsigned lch,
void (*callback)(unsigned channel, u16 ch_status, void *data),
void *data)
{
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(lch);
+ lch = EDMA_CHAN(lch);
+
if (!callback) {
- edma_shadow0_write_array(SH_IECR, lch >> 5,
+ edma_shadow0_write_array(ctlr, SH_IECR, lch >> 5,
(1 << (lch & 0x1f)));
}
@@ -289,13 +292,23 @@ setup_dma_interrupt(unsigned lch,
intr_data[lch].data = data;
if (callback) {
- edma_shadow0_write_array(SH_ICR, lch >> 5,
+ edma_shadow0_write_array(ctlr, SH_ICR, lch >> 5,
(1 << (lch & 0x1f)));
- edma_shadow0_write_array(SH_IESR, lch >> 5,
+ edma_shadow0_write_array(ctlr, SH_IESR, lch >> 5,
(1 << (lch & 0x1f)));
}
}
+static int irq2ctlr(int irq)
+{
+ if (irq >= irq_start[0] && irq <= irq_end[0])
+ return 0;
+ else if (irq >= irq_start[1] && irq <= irq_end[1])
+ return 1;
+
+ return -1;
+}
+
/******************************************************************************
*
* DMA interrupt handler
@@ -304,29 +317,34 @@ setup_dma_interrupt(unsigned lch,
static irqreturn_t dma_irq_handler(int irq, void *data)
{
int i;
+ unsigned ctlr;
unsigned int cnt = 0;
+ ctlr = irq2ctlr(irq);
+
dev_dbg(data, "dma_irq_handler\n");
- if ((edma_shadow0_read_array(SH_IPR, 0) == 0)
- && (edma_shadow0_read_array(SH_IPR, 1) == 0))
+ if ((edma_shadow0_read_array(ctlr, SH_IPR, 0) == 0)
+ && (edma_shadow0_read_array(ctlr, SH_IPR, 1) == 0))
return IRQ_NONE;
while (1) {
int j;
- if (edma_shadow0_read_array(SH_IPR, 0))
+ if (edma_shadow0_read_array(ctlr, SH_IPR, 0))
j = 0;
- else if (edma_shadow0_read_array(SH_IPR, 1))
+ else if (edma_shadow0_read_array(ctlr, SH_IPR, 1))
j = 1;
else
break;
dev_dbg(data, "IPR%d %08x\n", j,
- edma_shadow0_read_array(SH_IPR, j));
+ edma_shadow0_read_array(ctlr, SH_IPR, j));
for (i = 0; i < 32; i++) {
int k = (j << 5) + i;
- if (edma_shadow0_read_array(SH_IPR, j) & (1 << i)) {
+ if (edma_shadow0_read_array(ctlr, SH_IPR, j) &
+ (1 << i)) {
/* Clear the corresponding IPR bits */
- edma_shadow0_write_array(SH_ICR, j, (1 << i));
+ edma_shadow0_write_array(ctlr, SH_ICR, j,
+ (1 << i));
if (intr_data[k].callback) {
intr_data[k].callback(k, DMA_COMPLETE,
intr_data[k].data);
@@ -337,7 +355,7 @@ static irqreturn_t dma_irq_handler(int irq, void *data)
if (cnt > 10)
break;
}
- edma_shadow0_write(SH_IEVAL, 1);
+ edma_shadow0_write(ctlr, SH_IEVAL, 1);
return IRQ_HANDLED;
}
@@ -349,32 +367,38 @@ static irqreturn_t dma_irq_handler(int irq, void *data)
static irqreturn_t dma_ccerr_handler(int irq, void *data)
{
int i;
+ unsigned ctlr;
unsigned int cnt = 0;
+ ctlr = irq2ctlr(irq);
+
dev_dbg(data, "dma_ccerr_handler\n");
- if ((edma_read_array(EDMA_EMR, 0) == 0) &&
- (edma_read_array(EDMA_EMR, 1) == 0) &&
- (edma_read(EDMA_QEMR) == 0) && (edma_read(EDMA_CCERR) == 0))
+ if ((edma_read_array(ctlr, EDMA_EMR, 0) == 0) &&
+ (edma_read_array(ctlr, EDMA_EMR, 1) == 0) &&
+ (edma_read(ctlr, EDMA_QEMR) == 0) &&
+ (edma_read(ctlr, EDMA_CCERR) == 0))
return IRQ_NONE;
while (1) {
int j = -1;
- if (edma_read_array(EDMA_EMR, 0))
+ if (edma_read_array(ctlr, EDMA_EMR, 0))
j = 0;
- else if (edma_read_array(EDMA_EMR, 1))
+ else if (edma_read_array(ctlr, EDMA_EMR, 1))
j = 1;
if (j >= 0) {
dev_dbg(data, "EMR%d %08x\n", j,
- edma_read_array(EDMA_EMR, j));
+ edma_read_array(ctlr, EDMA_EMR, j));
for (i = 0; i < 32; i++) {
int k = (j << 5) + i;
- if (edma_read_array(EDMA_EMR, j) & (1 << i)) {
+ if (edma_read_array(ctlr, EDMA_EMR, j) &
+ (1 << i)) {
/* Clear the corresponding EMR bits */
- edma_write_array(EDMA_EMCR, j, 1 << i);
+ edma_write_array(ctlr, EDMA_EMCR, j,
+ 1 << i);
/* Clear any SER */
- edma_shadow0_write_array(SH_SECR, j,
- (1 << i));
+ edma_shadow0_write_array(ctlr, SH_SECR,
+ j, (1 << i));
if (intr_data[k].callback) {
intr_data[k].callback(k,
DMA_CC_ERROR,
@@ -383,44 +407,45 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
}
}
}
- } else if (edma_read(EDMA_QEMR)) {
+ } else if (edma_read(ctlr, EDMA_QEMR)) {
dev_dbg(data, "QEMR %02x\n",
- edma_read(EDMA_QEMR));
+ edma_read(ctlr, EDMA_QEMR));
for (i = 0; i < 8; i++) {
- if (edma_read(EDMA_QEMR) & (1 << i)) {
+ if (edma_read(ctlr, EDMA_QEMR) & (1 << i)) {
/* Clear the corresponding IPR bits */
- edma_write(EDMA_QEMCR, 1 << i);
- edma_shadow0_write(SH_QSECR, (1 << i));
+ edma_write(ctlr, EDMA_QEMCR, 1 << i);
+ edma_shadow0_write(ctlr, SH_QSECR,
+ (1 << i));
/* NOTE: not reported!! */
}
}
- } else if (edma_read(EDMA_CCERR)) {
+ } else if (edma_read(ctlr, EDMA_CCERR)) {
dev_dbg(data, "CCERR %08x\n",
- edma_read(EDMA_CCERR));
+ edma_read(ctlr, EDMA_CCERR));
/* FIXME: CCERR.BIT(16) ignored! much better
* to just write CCERRCLR with CCERR value...
*/
for (i = 0; i < 8; i++) {
- if (edma_read(EDMA_CCERR) & (1 << i)) {
+ if (edma_read(ctlr, EDMA_CCERR) & (1 << i)) {
/* Clear the corresponding IPR bits */
- edma_write(EDMA_CCERRCLR, 1 << i);
+ edma_write(ctlr, EDMA_CCERRCLR, 1 << i);
/* NOTE: not reported!! */
}
}
}
- if ((edma_read_array(EDMA_EMR, 0) == 0)
- && (edma_read_array(EDMA_EMR, 1) == 0)
- && (edma_read(EDMA_QEMR) == 0)
- && (edma_read(EDMA_CCERR) == 0)) {
+ if ((edma_read_array(ctlr, EDMA_EMR, 0) == 0)
+ && (edma_read_array(ctlr, EDMA_EMR, 1) == 0)
+ && (edma_read(ctlr, EDMA_QEMR) == 0)
+ && (edma_read(ctlr, EDMA_CCERR) == 0)) {
break;
}
cnt++;
if (cnt > 10)
break;
}
- edma_write(EDMA_EEVAL, 1);
+ edma_write(ctlr, EDMA_EEVAL, 1);
return IRQ_HANDLED;
}
@@ -483,37 +508,51 @@ int edma_alloc_channel(int channel,
void *data,
enum dma_event_q eventq_no)
{
- if (channel < 0) {
- channel = 0;
- for (;;) {
- channel = find_next_bit(edma_noevent,
- num_channels, channel);
- if (channel == num_channels)
- return -ENOMEM;
- if (!test_and_set_bit(channel, edma_inuse))
- break;
- channel++;
+ unsigned i, done;
+
+ if (channel >= 0)
+ channel = EDMA_CHAN(channel);
+
+ for (i = 0; i < EDMA_MAX_CC; i++) {
+ if (channel < 0) {
+ channel = 0;
+ for (;;) {
+ channel = find_next_bit(edma_info[i].
+ edma_noevent,
+ edma_info[i].num_channels,
+ channel);
+ if (channel == edma_info[i].num_channels)
+ return -ENOMEM;
+ if (!test_and_set_bit(channel,
+ edma_info[i].edma_inuse)) {
+ done = 1;
+ break;
+ }
+ channel++;
+ }
+ } else if (channel >= edma_info[i].num_channels) {
+ return -EINVAL;
+ } else if (test_and_set_bit(channel, edma_info[i].edma_inuse)) {
+ return -EBUSY;
}
- } else if (channel >= num_channels) {
- return -EINVAL;
- } else if (test_and_set_bit(channel, edma_inuse)) {
- return -EBUSY;
+ if (done)
+ break;
}
/* ensure access through shadow region 0 */
- edma_or_array2(EDMA_DRAE, 0, channel >> 5, 1 << (channel & 0x1f));
+ edma_or_array2(i, EDMA_DRAE, 0, channel >> 5, 1 << (channel & 0x1f));
/* ensure no events are pending */
- edma_stop(channel);
- memcpy_toio(edmacc_regs_base + PARM_OFFSET(channel),
+ edma_stop(EDMA_CTLR_CHAN(i, channel));
+ memcpy_toio(edmacc_regs_base[i] + PARM_OFFSET(channel),
&dummy_paramset, PARM_SIZE);
if (callback)
- setup_dma_interrupt(channel, callback, data);
+ setup_dma_interrupt(EDMA_CTLR_CHAN(i, channel), callback, data);
- map_dmach_queue(channel, eventq_no);
+ map_dmach_queue(i, channel, eventq_no);
- return channel;
+ return EDMA_CTLR_CHAN(i, channel);
}
EXPORT_SYMBOL(edma_alloc_channel);
@@ -531,15 +570,20 @@ EXPORT_SYMBOL(edma_alloc_channel);
*/
void edma_free_channel(unsigned channel)
{
- if (channel >= num_channels)
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(channel);
+ channel = EDMA_CHAN(channel);
+
+ if (channel >= edma_info[ctlr].num_channels)
return;
- setup_dma_interrupt(channel, NULL, NULL);
+ setup_dma_interrupt(EDMA_CTLR_CHAN(ctlr, channel), NULL, NULL);
/* REVISIT should probably take out of shadow region 0 */
- memcpy_toio(edmacc_regs_base + PARM_OFFSET(channel),
+ memcpy_toio(edmacc_regs_base[ctlr] + PARM_OFFSET(channel),
&dummy_paramset, PARM_SIZE);
- clear_bit(channel, edma_inuse);
+ clear_bit(channel, edma_info[ctlr].edma_inuse);
}
EXPORT_SYMBOL(edma_free_channel);
@@ -557,28 +601,32 @@ EXPORT_SYMBOL(edma_free_channel);
*
* Returns the number of the slot, else negative errno.
*/
-int edma_alloc_slot(int slot)
+int edma_alloc_slot(unsigned ctlr, int slot)
{
+ if (slot >= 0)
+ slot = EDMA_CHAN(slot);
+
if (slot < 0) {
- slot = num_channels;
+ slot = edma_info[ctlr].num_channels;
for (;;) {
- slot = find_next_zero_bit(edma_inuse,
- num_slots, slot);
- if (slot == num_slots)
+ slot = find_next_zero_bit(edma_info[ctlr].edma_inuse,
+ edma_info[ctlr].num_slots, slot);
+ if (slot == edma_info[ctlr].num_slots)
return -ENOMEM;
- if (!test_and_set_bit(slot, edma_inuse))
+ if (!test_and_set_bit(slot, edma_info[ctlr].edma_inuse))
break;
}
- } else if (slot < num_channels || slot >= num_slots) {
+ } else if (slot < edma_info[ctlr].num_channels ||
+ slot >= edma_info[ctlr].num_slots) {
return -EINVAL;
- } else if (test_and_set_bit(slot, edma_inuse)) {
+ } else if (test_and_set_bit(slot, edma_info[ctlr].edma_inuse)) {
return -EBUSY;
}
- memcpy_toio(edmacc_regs_base + PARM_OFFSET(slot),
+ memcpy_toio(edmacc_regs_base[ctlr] + PARM_OFFSET(slot),
&dummy_paramset, PARM_SIZE);
- return slot;
+ return EDMA_CTLR_CHAN(ctlr, slot);
}
EXPORT_SYMBOL(edma_alloc_slot);
@@ -592,12 +640,18 @@ EXPORT_SYMBOL(edma_alloc_slot);
*/
void edma_free_slot(unsigned slot)
{
- if (slot < num_channels || slot >= num_slots)
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
+
+ if (slot < edma_info[ctlr].num_channels ||
+ slot >= edma_info[ctlr].num_slots)
return;
- memcpy_toio(edmacc_regs_base + PARM_OFFSET(slot),
+ memcpy_toio(edmacc_regs_base[ctlr] + PARM_OFFSET(slot),
&dummy_paramset, PARM_SIZE);
- clear_bit(slot, edma_inuse);
+ clear_bit(slot, edma_info[ctlr].edma_inuse);
}
EXPORT_SYMBOL(edma_free_slot);
@@ -619,8 +673,13 @@ EXPORT_SYMBOL(edma_free_slot);
void edma_set_src(unsigned slot, dma_addr_t src_port,
enum address_mode mode, enum fifo_width width)
{
- if (slot < num_slots) {
- unsigned int i = edma_parm_read(PARM_OPT, slot);
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
+
+ if (slot < edma_info[ctlr].num_slots) {
+ unsigned int i = edma_parm_read(ctlr, PARM_OPT, slot);
if (mode) {
/* set SAM and program FWID */
@@ -629,11 +688,11 @@ void edma_set_src(unsigned slot, dma_addr_t src_port,
/* clear SAM */
i &= ~SAM;
}
- edma_parm_write(PARM_OPT, slot, i);
+ edma_parm_write(ctlr, PARM_OPT, slot, i);
/* set the source port address
in source register of param structure */
- edma_parm_write(PARM_SRC, slot, src_port);
+ edma_parm_write(ctlr, PARM_SRC, slot, src_port);
}
}
EXPORT_SYMBOL(edma_set_src);
@@ -652,8 +711,13 @@ EXPORT_SYMBOL(edma_set_src);
void edma_set_dest(unsigned slot, dma_addr_t dest_port,
enum address_mode mode, enum fifo_width width)
{
- if (slot < num_slots) {
- unsigned int i = edma_parm_read(PARM_OPT, slot);
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
+
+ if (slot < edma_info[ctlr].num_slots) {
+ unsigned int i = edma_parm_read(ctlr, PARM_OPT, slot);
if (mode) {
/* set DAM and program FWID */
@@ -662,10 +726,10 @@ void edma_set_dest(unsigned slot, dma_addr_t dest_port,
/* clear DAM */
i &= ~DAM;
}
- edma_parm_write(PARM_OPT, slot, i);
+ edma_parm_write(ctlr, PARM_OPT, slot, i);
/* set the destination port address
in dest register of param structure */
- edma_parm_write(PARM_DST, slot, dest_port);
+ edma_parm_write(ctlr, PARM_DST, slot, dest_port);
}
}
EXPORT_SYMBOL(edma_set_dest);
@@ -682,8 +746,12 @@ EXPORT_SYMBOL(edma_set_dest);
void edma_get_position(unsigned slot, dma_addr_t *src, dma_addr_t *dst)
{
struct edmacc_param temp;
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
- edma_read_slot(slot, &temp);
+ edma_read_slot(EDMA_CTLR_CHAN(ctlr, slot), &temp);
if (src != NULL)
*src = temp.src;
if (dst != NULL)
@@ -703,10 +771,15 @@ EXPORT_SYMBOL(edma_get_position);
*/
void edma_set_src_index(unsigned slot, s16 src_bidx, s16 src_cidx)
{
- if (slot < num_slots) {
- edma_parm_modify(PARM_SRC_DST_BIDX, slot,
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
+
+ if (slot < edma_info[ctlr].num_slots) {
+ edma_parm_modify(ctlr, PARM_SRC_DST_BIDX, slot,
0xffff0000, src_bidx);
- edma_parm_modify(PARM_SRC_DST_CIDX, slot,
+ edma_parm_modify(ctlr, PARM_SRC_DST_CIDX, slot,
0xffff0000, src_cidx);
}
}
@@ -724,10 +797,15 @@ EXPORT_SYMBOL(edma_set_src_index);
*/
void edma_set_dest_index(unsigned slot, s16 dest_bidx, s16 dest_cidx)
{
- if (slot < num_slots) {
- edma_parm_modify(PARM_SRC_DST_BIDX, slot,
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
+
+ if (slot < edma_info[ctlr].num_slots) {
+ edma_parm_modify(ctlr, PARM_SRC_DST_BIDX, slot,
0x0000ffff, dest_bidx << 16);
- edma_parm_modify(PARM_SRC_DST_CIDX, slot,
+ edma_parm_modify(ctlr, PARM_SRC_DST_CIDX, slot,
0x0000ffff, dest_cidx << 16);
}
}
@@ -766,16 +844,21 @@ void edma_set_transfer_params(unsigned slot,
u16 acnt, u16 bcnt, u16 ccnt,
u16 bcnt_rld, enum sync_dimension sync_mode)
{
- if (slot < num_slots) {
- edma_parm_modify(PARM_LINK_BCNTRLD, slot,
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
+
+ if (slot < edma_info[ctlr].num_slots) {
+ edma_parm_modify(ctlr, PARM_LINK_BCNTRLD, slot,
0x0000ffff, bcnt_rld << 16);
if (sync_mode == ASYNC)
- edma_parm_and(PARM_OPT, slot, ~SYNCDIM);
+ edma_parm_and(ctlr, PARM_OPT, slot, ~SYNCDIM);
else
- edma_parm_or(PARM_OPT, slot, SYNCDIM);
+ edma_parm_or(ctlr, PARM_OPT, slot, SYNCDIM);
/* Set the acount, bcount, ccount registers */
- edma_parm_write(PARM_A_B_CNT, slot, (bcnt << 16) | acnt);
- edma_parm_write(PARM_CCNT, slot, ccnt);
+ edma_parm_write(ctlr, PARM_A_B_CNT, slot, (bcnt << 16) | acnt);
+ edma_parm_write(ctlr, PARM_CCNT, slot, ccnt);
}
}
EXPORT_SYMBOL(edma_set_transfer_params);
@@ -789,11 +872,19 @@ EXPORT_SYMBOL(edma_set_transfer_params);
*/
void edma_link(unsigned from, unsigned to)
{
- if (from >= num_slots)
+ unsigned ctlr_from, ctlr_to;
+
+ ctlr_from = EDMA_CTLR(from);
+ from = EDMA_CHAN(from);
+ ctlr_to = EDMA_CTLR(to);
+ to = EDMA_CHAN(to);
+
+ if (from >= edma_info[ctlr_from].num_slots)
return;
- if (to >= num_slots)
+ if (to >= edma_info[ctlr_to].num_slots)
return;
- edma_parm_modify(PARM_LINK_BCNTRLD, from, 0xffff0000, PARM_OFFSET(to));
+ edma_parm_modify(ctlr_from, PARM_LINK_BCNTRLD, from, 0xffff0000,
+ PARM_OFFSET(to));
}
EXPORT_SYMBOL(edma_link);
@@ -806,9 +897,14 @@ EXPORT_SYMBOL(edma_link);
*/
void edma_unlink(unsigned from)
{
- if (from >= num_slots)
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(from);
+ from = EDMA_CHAN(from);
+
+ if (from >= edma_info[ctlr].num_slots)
return;
- edma_parm_or(PARM_LINK_BCNTRLD, from, 0xffff);
+ edma_parm_or(ctlr, PARM_LINK_BCNTRLD, from, 0xffff);
}
EXPORT_SYMBOL(edma_unlink);
@@ -828,9 +924,15 @@ EXPORT_SYMBOL(edma_unlink);
*/
void edma_write_slot(unsigned slot, const struct edmacc_param *param)
{
- if (slot >= num_slots)
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
+
+ if (slot >= edma_info[ctlr].num_slots)
return;
- memcpy_toio(edmacc_regs_base + PARM_OFFSET(slot), param, PARM_SIZE);
+ memcpy_toio(edmacc_regs_base[ctlr] + PARM_OFFSET(slot), param,
+ PARM_SIZE);
}
EXPORT_SYMBOL(edma_write_slot);
@@ -844,9 +946,15 @@ EXPORT_SYMBOL(edma_write_slot);
*/
void edma_read_slot(unsigned slot, struct edmacc_param *param)
{
- if (slot >= num_slots)
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(slot);
+ slot = EDMA_CHAN(slot);
+
+ if (slot >= edma_info[ctlr].num_slots)
return;
- memcpy_fromio(param, edmacc_regs_base + PARM_OFFSET(slot), PARM_SIZE);
+ memcpy_fromio(param, edmacc_regs_base[ctlr] + PARM_OFFSET(slot),
+ PARM_SIZE);
}
EXPORT_SYMBOL(edma_read_slot);
@@ -863,10 +971,15 @@ EXPORT_SYMBOL(edma_read_slot);
*/
void edma_pause(unsigned channel)
{
- if (channel < num_channels) {
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(channel);
+ channel = EDMA_CHAN(channel);
+
+ if (channel < edma_info[ctlr].num_channels) {
unsigned int mask = (1 << (channel & 0x1f));
- edma_shadow0_write_array(SH_EECR, channel >> 5, mask);
+ edma_shadow0_write_array(ctlr, SH_EECR, channel >> 5, mask);
}
}
EXPORT_SYMBOL(edma_pause);
@@ -879,10 +992,15 @@ EXPORT_SYMBOL(edma_pause);
*/
void edma_resume(unsigned channel)
{
- if (channel < num_channels) {
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(channel);
+ channel = EDMA_CHAN(channel);
+
+ if (channel < edma_info[ctlr].num_channels) {
unsigned int mask = (1 << (channel & 0x1f));
- edma_shadow0_write_array(SH_EESR, channel >> 5, mask);
+ edma_shadow0_write_array(ctlr, SH_EESR, channel >> 5, mask);
}
}
EXPORT_SYMBOL(edma_resume);
@@ -900,28 +1018,33 @@ EXPORT_SYMBOL(edma_resume);
*/
int edma_start(unsigned channel)
{
- if (channel < num_channels) {
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(channel);
+ channel = EDMA_CHAN(channel);
+
+ if (channel < edma_info[ctlr].num_channels) {
int j = channel >> 5;
unsigned int mask = (1 << (channel & 0x1f));
/* EDMA channels without event association */
- if (test_bit(channel, edma_noevent)) {
+ if (test_bit(channel, edma_info[ctlr].edma_noevent)) {
pr_debug("EDMA: ESR%d %08x\n", j,
- edma_shadow0_read_array(SH_ESR, j));
- edma_shadow0_write_array(SH_ESR, j, mask);
+ edma_shadow0_read_array(ctlr, SH_ESR, j));
+ edma_shadow0_write_array(ctlr, SH_ESR, j, mask);
return 0;
}
/* EDMA channel with event association */
pr_debug("EDMA: ER%d %08x\n", j,
- edma_shadow0_read_array(SH_ER, j));
+ edma_shadow0_read_array(ctlr, SH_ER, j));
/* Clear any pending error */
- edma_write_array(EDMA_EMCR, j, mask);
+ edma_write_array(ctlr, EDMA_EMCR, j, mask);
/* Clear any SER */
- edma_shadow0_write_array(SH_SECR, j, mask);
- edma_shadow0_write_array(SH_EESR, j, mask);
+ edma_shadow0_write_array(ctlr, SH_SECR, j, mask);
+ edma_shadow0_write_array(ctlr, SH_EESR, j, mask);
pr_debug("EDMA: EER%d %08x\n", j,
- edma_shadow0_read_array(SH_EER, j));
+ edma_shadow0_read_array(ctlr, SH_EER, j));
return 0;
}
@@ -940,17 +1063,22 @@ EXPORT_SYMBOL(edma_start);
*/
void edma_stop(unsigned channel)
{
- if (channel < num_channels) {
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(channel);
+ channel = EDMA_CHAN(channel);
+
+ if (channel < edma_info[ctlr].num_channels) {
int j = channel >> 5;
unsigned int mask = (1 << (channel & 0x1f));
- edma_shadow0_write_array(SH_EECR, j, mask);
- edma_shadow0_write_array(SH_ECR, j, mask);
- edma_shadow0_write_array(SH_SECR, j, mask);
- edma_write_array(EDMA_EMCR, j, mask);
+ edma_shadow0_write_array(ctlr, SH_EECR, j, mask);
+ edma_shadow0_write_array(ctlr, SH_ECR, j, mask);
+ edma_shadow0_write_array(ctlr, SH_SECR, j, mask);
+ edma_write_array(ctlr, EDMA_EMCR, j, mask);
pr_debug("EDMA: EER%d %08x\n", j,
- edma_shadow0_read_array(SH_EER, j));
+ edma_shadow0_read_array(ctlr, SH_EER, j));
/* REVISIT: consider guarding against inappropriate event
* chaining by overwriting with dummy_paramset.
@@ -974,18 +1102,23 @@ EXPORT_SYMBOL(edma_stop);
void edma_clean_channel(unsigned channel)
{
- if (channel < num_channels) {
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(channel);
+ channel = EDMA_CHAN(channel);
+
+ if (channel < edma_info[ctlr].num_channels) {
int j = (channel >> 5);
unsigned int mask = 1 << (channel & 0x1f);
pr_debug("EDMA: EMR%d %08x\n", j,
- edma_read_array(EDMA_EMR, j));
- edma_shadow0_write_array(SH_ECR, j, mask);
+ edma_read_array(ctlr, EDMA_EMR, j));
+ edma_shadow0_write_array(ctlr, SH_ECR, j, mask);
/* Clear the corresponding EMR bits */
- edma_write_array(EDMA_EMCR, j, mask);
+ edma_write_array(ctlr, EDMA_EMCR, j, mask);
/* Clear any SER */
- edma_shadow0_write_array(SH_SECR, j, mask);
- edma_write(EDMA_CCERRCLR, (1 << 16) | 0x3);
+ edma_shadow0_write_array(ctlr, SH_SECR, j, mask);
+ edma_write(ctlr, EDMA_CCERRCLR, (1 << 16) | 0x3);
}
}
EXPORT_SYMBOL(edma_clean_channel);
@@ -997,12 +1130,17 @@ EXPORT_SYMBOL(edma_clean_channel);
*/
void edma_clear_event(unsigned channel)
{
- if (channel >= num_channels)
+ unsigned ctlr;
+
+ ctlr = EDMA_CTLR(channel);
+ channel = EDMA_CHAN(channel);
+
+ if (channel >= edma_info[ctlr].num_channels)
return;
if (channel < 32)
- edma_write(EDMA_ECR, 1 << channel);
+ edma_write(ctlr, EDMA_ECR, 1 << channel);
else
- edma_write(EDMA_ECRH, 1 << (channel - 32));
+ edma_write(ctlr, EDMA_ECRH, 1 << (channel - 32));
}
EXPORT_SYMBOL(edma_clear_event);
@@ -1017,11 +1155,13 @@ static int __init edma_probe(struct platform_device
*pdev)
int irq = 0, err_irq = 0;
struct resource *r;
resource_size_t len;
+ char name[10];
if (!info)
return -ENODEV;
- r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "edma_cc");
+ sprintf(name, "edma_cc%d", pdev->id);
+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
if (!r)
return -ENODEV;
@@ -1031,28 +1171,33 @@ static int __init edma_probe(struct platform_device
*pdev)
if (!r)
return -EBUSY;
- edmacc_regs_base = ioremap(r->start, len);
- if (!edmacc_regs_base) {
+ edmacc_regs_base[pdev->id] = ioremap(r->start, len);
+ if (!edmacc_regs_base[pdev->id]) {
status = -EBUSY;
goto fail1;
}
- num_channels = min_t(unsigned, info->n_channel, EDMA_MAX_DMACH);
- num_slots = min_t(unsigned, info->n_slot, EDMA_MAX_PARAMENTRY);
+ edma_info[pdev->id].num_channels = min_t(unsigned, info->n_channel,
+ EDMA_MAX_DMACH);
+ edma_info[pdev->id].num_slots = min_t(unsigned, info->n_slot,
+ EDMA_MAX_PARAMENTRY);
+ edma_info[pdev->id].num_cc = min_t(unsigned, info->n_cc, EDMA_MAX_CC);
- dev_dbg(&pdev->dev, "DMA REG BASE ADDR=%p\n", edmacc_regs_base);
+ dev_dbg(&pdev->dev, "DMA REG BASE ADDR=%p\n",
+ edmacc_regs_base[pdev->id]);
- for (i = 0; i < num_slots; i++)
- memcpy_toio(edmacc_regs_base + PARM_OFFSET(i),
+ for (i = 0; i < edma_info[pdev->id].num_slots; i++)
+ memcpy_toio(edmacc_regs_base[pdev->id] + PARM_OFFSET(i),
&dummy_paramset, PARM_SIZE);
noevent = info->noevent;
if (noevent) {
while (*noevent != -1)
- set_bit(*noevent++, edma_noevent);
+ set_bit(*noevent++, edma_info[pdev->id].edma_noevent);
}
irq = platform_get_irq(pdev, 0);
+ irq_start[pdev->id] = irq;
status = request_irq(irq, dma_irq_handler, 0, "edma", &pdev->dev);
if (status < 0) {
dev_dbg(&pdev->dev, "request_irq %d failed --> %d\n",
@@ -1061,6 +1206,7 @@ static int __init edma_probe(struct platform_device *pdev)
}
err_irq = platform_get_irq(pdev, 1);
+ irq_end[pdev->id] = err_irq;
status = request_irq(err_irq, dma_ccerr_handler, 0,
"edma_error", &pdev->dev);
if (status < 0) {
@@ -1090,22 +1236,23 @@ static int __init edma_probe(struct platform_device
*pdev)
* This way, long transfers on the low priority queue
* started by the codec engine will not cause audio defects.
*/
- for (i = 0; i < num_channels; i++)
- map_dmach_queue(i, EVENTQ_1);
+ for (i = 0; i < edma_info[pdev->id].num_channels; i++)
+ map_dmach_queue(pdev->id, i, EVENTQ_1);
/* Event queue to TC mapping */
for (i = 0; queue_tc_mapping[i][0] != -1; i++)
- map_queue_tc(queue_tc_mapping[i][0], queue_tc_mapping[i][1]);
+ map_queue_tc(pdev->id, queue_tc_mapping[i][0],
+ queue_tc_mapping[i][1]);
/* Event queue priority mapping */
for (i = 0; queue_priority_mapping[i][0] != -1; i++)
- assign_priority_to_queue(queue_priority_mapping[i][0],
+ assign_priority_to_queue(pdev->id, queue_priority_mapping[i][0],
queue_priority_mapping[i][1]);
for (i = 0; i < info->n_region; i++) {
- edma_write_array2(EDMA_DRAE, i, 0, 0x0);
- edma_write_array2(EDMA_DRAE, i, 1, 0x0);
- edma_write_array(EDMA_QRAE, i, 0x0);
+ edma_write_array2(pdev->id, EDMA_DRAE, i, 0, 0x0);
+ edma_write_array2(pdev->id, EDMA_DRAE, i, 1, 0x0);
+ edma_write_array(pdev->id, EDMA_QRAE, i, 0x0);
}
return 0;
@@ -1115,7 +1262,7 @@ fail:
free_irq(err_irq, NULL);
if (irq)
free_irq(irq, NULL);
- iounmap(edmacc_regs_base);
+ iounmap(edmacc_regs_base[pdev->id]);
fail1:
release_mem_region(r->start, len);
return status;
diff --git a/arch/arm/mach-davinci/include/mach/edma.h
b/arch/arm/mach-davinci/include/mach/edma.h
index b467358..a855a9f 100644
--- a/arch/arm/mach-davinci/include/mach/edma.h
+++ b/arch/arm/mach-davinci/include/mach/edma.h
@@ -58,6 +58,11 @@
#ifndef EDMA_H_
#define EDMA_H_
+#define EDMA_MAX_DMACH 64
+#define EDMA_MAX_PARAMENTRY 512
+#define EDMA_MAX_EVQUE 2 /* FIXME too small */
+#define EDMA_MAX_CC 2
+
/* PaRAM slots are laid out like this */
struct edmacc_param {
unsigned int opt;
@@ -171,6 +176,10 @@ enum sync_dimension {
ABSYNC = 1
};
+#define EDMA_CTLR_CHAN(ctlr, chan) (((ctlr) << 16) | (chan))
+#define EDMA_CTLR(i) ((i) >> 16)
+#define EDMA_CHAN(i) ((i) & 0xffff)
+
#define EDMA_CHANNEL_ANY -1 /* for edma_alloc_channel() */
#define EDMA_SLOT_ANY -1 /* for edma_alloc_slot() */
@@ -181,7 +190,7 @@ int edma_alloc_channel(int channel,
void edma_free_channel(unsigned channel);
/* alloc/free parameter RAM slots */
-int edma_alloc_slot(int slot);
+int edma_alloc_slot(unsigned ctlr, int slot);
void edma_free_slot(unsigned slot);
/* calls that operate on part of a parameter RAM slot */
@@ -221,9 +230,34 @@ struct edma_soc_info {
unsigned n_region;
unsigned n_slot;
unsigned n_tc;
+ unsigned n_cc;
/* list of channels with no even trigger; terminated by "-1" */
const s8 *noevent;
};
+struct edma {
+ /* how many dma resources of each type */
+ unsigned num_channels;
+ unsigned num_region;
+ unsigned num_slots;
+ unsigned num_tc;
+ unsigned num_cc;
+
+ /* list of channels with no even trigger; terminated by "-1" */
+ const s8 *noevent;
+
+ /* The edma_inuse bit for each PaRAM slot is clear unless the
+ * channel is in use ... by ARM or DSP, for QDMA, or whatever.
+ */
+ DECLARE_BITMAP(edma_inuse, EDMA_MAX_PARAMENTRY);
+
+
+ /* The edma_noevent bit for each channel is clear unless
+ * it doesn't trigger DMA events on this platform. It uses a
+ * bit of SOC-specific initialization code.
+ */
+ DECLARE_BITMAP(edma_noevent, EDMA_MAX_DMACH);
+};
+
#endif
--
1.5.6
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