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authorNebuleon Fumika2013-02-04 23:45:44 -0500
committerNebuleon Fumika2013-02-04 23:45:44 -0500
commitd1a7bf5eb558e7db4a1a27e15ebedb02e6b7f804 (patch)
treed951252d393b9d7defb508483aba29e0daad764c /sdk-modifications/libsrc/core
parentb1c298ab5066c2e37a69c7c30bd499dd11ed6eb3 (diff)
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Fully integrate BassAceGold's libraries, finally. The README still states that 1.2 is required to overwrite 0.13's stuff; really, 0.13 is needed only for `gcc`. So the sequence goes 0.13's `gcc` -> 1.2 -> BassAceGold's libraries -> make `libds2a.a`.
DMA function names changed to match BassAceGold's.
Diffstat (limited to 'sdk-modifications/libsrc/core')
-rw-r--r--sdk-modifications/libsrc/core/core.mk11
-rw-r--r--sdk-modifications/libsrc/core/ds2_cpuclock.c272
-rw-r--r--sdk-modifications/libsrc/core/ds2_cpuclock.h22
-rw-r--r--sdk-modifications/libsrc/core/ds2_dma.c34
-rw-r--r--sdk-modifications/libsrc/core/ds2_dma.h142
5 files changed, 481 insertions, 0 deletions
diff --git a/sdk-modifications/libsrc/core/core.mk b/sdk-modifications/libsrc/core/core.mk
new file mode 100644
index 0000000..4ed3ca8
--- /dev/null
+++ b/sdk-modifications/libsrc/core/core.mk
@@ -0,0 +1,11 @@
+#fs.mk
+
+SRC += $(CORE_DIR)/ds2_dma.c \
+ $(CORE_DIR)/ds2_cpuclock.c
+
+SSRC +=
+
+INC += -I$(CORE_DIR)
+
+CFLAGS +=
+
diff --git a/sdk-modifications/libsrc/core/ds2_cpuclock.c b/sdk-modifications/libsrc/core/ds2_cpuclock.c
new file mode 100644
index 0000000..57f2143
--- /dev/null
+++ b/sdk-modifications/libsrc/core/ds2_cpuclock.c
@@ -0,0 +1,272 @@
+#include <ds2_types.h>
+
+#include "ds2_cpuclock.h"
+
+#define REG8(addr) *((volatile u8 *)(addr))
+#define REG16(addr) *((volatile u16 *)(addr))
+#define REG32(addr) *((volatile u32 *)(addr))
+
+#define SDRAM_TRAS 50 /* RAS# Active Time */
+#define SDRAM_RCD 23 /* RAS# to CAS# Delay */
+#define SDRAM_TPC 23 /* RAS# Precharge Time */
+#define SDRAM_TRWL 7 /* Write Latency Time */
+#define SDRAM_TREF 7813 /* Refresh period: 8192 refresh cycles/64ms */
+
+#define EMC_BASE 0xB3010000
+#define EMC_DMCR (EMC_BASE + 0x80) /* DRAM Control Register */
+#define REG_EMC_DMCR REG32(EMC_DMCR)
+#define EMC_RTCSR (EMC_BASE + 0x84) /* Refresh Time Control/Status Register */
+#define REG_EMC_RTCSR REG16(EMC_RTCSR)
+#define EMC_RTCOR (EMC_BASE + 0x8c) /* Refresh Time Constant Register */
+#define REG_EMC_RTCOR REG16(EMC_RTCOR)
+#define EMC_RTCNT (EMC_BASE + 0x88) /* Refresh Timer Counter */
+#define REG_EMC_RTCNT REG16(EMC_RTCNT)
+
+
+
+#define CPM_BASE 0xB0000000
+#define CPM_CPCCR (CPM_BASE+0x00)
+#define CPM_CPPCR (CPM_BASE+0x10)
+//#define CPM_RSR (CPM_BASE+0x08)
+#define REG_CPM_CPCCR REG32(CPM_CPCCR)
+#define REG_CPM_CPPCR REG32(CPM_CPPCR)
+#define CPM_CPCCR_CE (1 << 22)
+
+
+
+
+
+
+#define EMC_DMCR_TRAS_BIT 13
+#define EMC_DMCR_TRAS_MASK (0x07 << EMC_DMCR_TRAS_BIT)
+#define EMC_DMCR_RCD_BIT 11
+#define EMC_DMCR_RCD_MASK (0x03 << EMC_DMCR_RCD_BIT)
+#define EMC_DMCR_TPC_BIT 8
+#define EMC_DMCR_TPC_MASK (0x07 << EMC_DMCR_TPC_BIT)
+#define EMC_DMCR_TRWL_BIT 5
+#define EMC_DMCR_TRWL_MASK (0x03 << EMC_DMCR_TRWL_BIT)
+#define EMC_DMCR_TRC_BIT 2
+#define EMC_DMCR_TRC_MASK (0x07 << EMC_DMCR_TRC_BIT)
+
+#define EMC_RTCSR_CKS_BIT 0
+#define EMC_RTCSR_CKS_MASK (0x07 << EMC_RTCSR_CKS_BIT)
+
+
+#define CPM_CPCCR_LDIV_BIT 16
+#define CPM_CPCCR_LDIV_MASK (0x1f << CPM_CPCCR_LDIV_BIT)
+#define CPM_CPCCR_MDIV_BIT 12
+#define CPM_CPCCR_MDIV_MASK (0x0f << CPM_CPCCR_MDIV_BIT)
+#define CPM_CPCCR_PDIV_BIT 8
+#define CPM_CPCCR_PDIV_MASK (0x0f << CPM_CPCCR_PDIV_BIT)
+#define CPM_CPCCR_HDIV_BIT 4
+#define CPM_CPCCR_HDIV_MASK (0x0f << CPM_CPCCR_HDIV_BIT)
+#define CPM_CPCCR_CDIV_BIT 0
+#define CPM_CPCCR_CDIV_MASK (0x0f << CPM_CPCCR_CDIV_BIT)
+
+
+#define CPM_CPPCR_PLLM_BIT 23
+#define CPM_CPPCR_PLLM_MASK (0x1ff << CPM_CPPCR_PLLM_BIT)
+#define CPM_CPPCR_PLLN_BIT 18
+#define CPM_CPPCR_PLLN_MASK (0x1f << CPM_CPPCR_PLLN_BIT)
+#define CPM_CPPCR_PLLOD_BIT 16
+#define CPM_CPPCR_PLLOD_MASK (0x03 << CPM_CPPCR_PLLOD_BIT)
+#define CPM_CPPCR_PLLS (1 << 10)
+#define CPM_CPPCR_PLLBP (1 << 9)
+#define CPM_CPPCR_PLLEN (1 << 8)
+#define CPM_CPPCR_PLLST_BIT 0
+#define CPM_CPPCR_PLLST_MASK (0xff << CPM_CPPCR_PLLST_BIT)
+
+
+#define PLL_M 0
+#define PLL_N 1
+#define PLL_CCLK 2
+#define PLL_HCLK 3
+#define PLL_MCLK 4
+#define PLL_PCLK 5
+
+#define CFG_EXTAL 24000000
+#define EXTAL_CLK CFG_EXTAL
+
+
+#define __cpm_get_pllm() \
+ ((REG_CPM_CPPCR & CPM_CPPCR_PLLM_MASK) >> CPM_CPPCR_PLLM_BIT)
+
+#define __cpm_get_plln() \
+ ((REG_CPM_CPPCR & CPM_CPPCR_PLLN_MASK) >> CPM_CPPCR_PLLN_BIT)
+
+#define __cpm_get_cdiv() \
+ ((REG_CPM_CPCCR & CPM_CPCCR_CDIV_MASK) >> CPM_CPCCR_CDIV_BIT)
+
+
+static unsigned char pll_m_n[CPU_MAX_LEVEL_EX + 1][6] = {
+ //M, N, CCLK, HCLK, MCLK, PCLK, EXT_CLK=24MHz
+ {10-2, 2-2, 1, 1, 1, 1}, //0 60, 60, 1/1
+ {10-2, 2-2, 0, 1, 1, 1}, //1 120, 60, 1/2
+ {10-2, 2-2, 0, 0, 0, 0}, //2 120, 120, 1/1
+ {12-2, 2-2, 0, 1, 1, 1}, //3 144, 72, 1/2
+ {16-2, 2-2, 0, 1, 1, 1}, //4 192, 96, 1/2
+ {17-2, 2-2, 0, 0, 1, 1}, //5 204, 102, 1/2
+ {20-2, 2-2, 0, 1, 1, 1}, //6 240, 120, 1/2
+ {22-2, 2-2, 0, 2, 2, 2}, //7 264, 88, 1/3
+ {24-2, 2-2, 0, 2, 2, 2}, //8 288, 96, 1/3
+ {25-2, 2-2, 0, 2, 2, 2}, //9 300, 100, 1/3
+ {28-2, 2-2, 0, 2, 2, 2}, //10 336, 112, 1/3
+ {30-2, 2-2, 0, 2, 2, 2}, //11 360, 120, 1/3
+ {32-2, 2-2, 0, 2, 2, 2}, //12 384, 128, 1/3
+ {33-2, 2-2, 0, 2, 2, 2}, //13 396, 132, 1/3
+
+ {34-2, 2-2, 0, 2, 2, 2}, //14 404, 132, 1/3
+ {35-2, 2-2, 0, 2, 2, 2}, //15 420, 132, 1/3
+ {36-2, 2-2, 0, 2, 2, 2}, //16 438, 132, 1/3
+ {37-2, 2-2, 0, 2, 2, 2}, //17 444, 132, 1/3
+ {38-2, 2-2, 0, 2, 2, 2}, //18 456, 132, 1/3
+ //{39-2, 2-2, 0, 2, 2, 2}, //468, instant crash!
+ };
+
+static int _sdram_convert(unsigned int pllin,unsigned int *sdram_dmcr, unsigned int *sdram_div, unsigned int *sdram_tref)
+{
+ register unsigned int ns, dmcr,tmp;
+
+ dmcr = ~(EMC_DMCR_TRAS_MASK | EMC_DMCR_RCD_MASK | EMC_DMCR_TPC_MASK |
+ EMC_DMCR_TRWL_MASK | EMC_DMCR_TRC_MASK) & REG_EMC_DMCR;
+
+ /* Set sdram operation parameter */
+ //pllin unit is KHz
+ ns = 1000000*1024 / pllin;
+ tmp = SDRAM_TRAS*1024/ns;
+ if (tmp < 4) tmp = 4;
+ if (tmp > 11) tmp = 11;
+ dmcr |= ((tmp-4) << EMC_DMCR_TRAS_BIT);
+
+ tmp = SDRAM_RCD*1024/ns;
+ if (tmp > 3) tmp = 3;
+ dmcr |= (tmp << EMC_DMCR_RCD_BIT);
+
+ tmp = SDRAM_TPC*1024/ns;
+ if (tmp > 7) tmp = 7;
+ dmcr |= (tmp << EMC_DMCR_TPC_BIT);
+
+ tmp = SDRAM_TRWL*1024/ns;
+ if (tmp > 3) tmp = 3;
+ dmcr |= (tmp << EMC_DMCR_TRWL_BIT);
+
+ tmp = (SDRAM_TRAS + SDRAM_TPC)*1024/ns;
+ if (tmp > 14) tmp = 14;
+ dmcr |= (((tmp + 1) >> 1) << EMC_DMCR_TRC_BIT);
+
+ *sdram_dmcr = dmcr;
+
+ /* Set refresh registers */
+ unsigned int div;
+ tmp = SDRAM_TREF*1024/ns;
+ div = (tmp + 254)/255;
+ if(div <= 4) div = 1; // 1/4
+ else if(div <= 16) div = 2; // 1/16
+ else div = 3; // 1/64
+
+ *sdram_div = ~EMC_RTCSR_CKS_MASK & REG_EMC_RTCSR | div;
+
+ unsigned int divm= 4;
+ while(--div) divm *= 4;
+
+ tmp = tmp/divm + 1;
+ *sdram_tref = tmp;
+
+ return 0;
+}
+
+
+const static int FR2n[] = {
+ 1, 2, 3, 4, 6, 8, 12, 16, 24, 32
+};
+
+static unsigned int _pllout;
+static unsigned int _iclk;
+
+static void detect_clockNew(void){
+ _pllout = (__cpm_get_pllm() + 2)* EXTAL_CLK / (__cpm_get_plln() + 2);
+ _iclk = _pllout / FR2n[__cpm_get_cdiv()];
+}
+
+
+//udelay overclock
+void ds2_udelay(unsigned int usec)
+{
+ /*unsigned int i = usec * (_iclk / 2000000);
+
+ __asm__ __volatile__ (
+ "\t.set noreorder\n"
+ "1:\n\t"
+ "bne\t%0, $0, 1b\n\t"
+ "addi\t%0, %0, -1\n\t"
+ ".set reorder\n"
+ : "=r" (i)
+ : "0" (i)
+ );*/
+}
+
+//mdelay overclock
+void ds2_mdelay(unsigned int msec)
+{
+ /*int i;
+ for(i=0;i<msec;i++)
+ {
+ ds2_udelay(1000);
+ }*/
+}
+
+
+
+
+int ds2_getCPUClock(void){
+ return (_pllout/1000/1000);
+}
+
+
+
+/* convert pll while program is running */
+int ds2_setCPULevel(unsigned int level){
+ unsigned int freq_b;
+ unsigned int dmcr;
+ unsigned int rtcsr;
+ unsigned int tref;
+ unsigned int cpccr;
+ unsigned int cppcr;
+
+ if(level > CPU_MAX_LEVEL_EX) return -1;
+
+ freq_b = (pll_m_n[level][PLL_M]+2)*(EXTAL_CLK/1000)/(pll_m_n[level][PLL_N]+2);
+
+ //freq_b unit is KHz
+ _sdram_convert(freq_b/pll_m_n[level][PLL_MCLK], &dmcr, &rtcsr, &tref);
+
+ cpccr = REG_CPM_CPCCR;
+ cppcr = REG_CPM_CPPCR;
+
+ REG_CPM_CPCCR = ~CPM_CPCCR_CE & cpccr;
+
+ cppcr &= ~(CPM_CPPCR_PLLM_MASK | CPM_CPPCR_PLLN_MASK);
+ cppcr |= (pll_m_n[level][PLL_M] << CPM_CPPCR_PLLM_BIT) | (pll_m_n[level][PLL_N] << CPM_CPPCR_PLLN_BIT);
+
+ cpccr &= ~(CPM_CPCCR_CDIV_MASK | CPM_CPCCR_HDIV_MASK | CPM_CPCCR_PDIV_MASK |
+ CPM_CPCCR_MDIV_MASK | CPM_CPCCR_LDIV_MASK);
+ cpccr |= (pll_m_n[level][PLL_CCLK] << CPM_CPCCR_CDIV_BIT) | (pll_m_n[level][PLL_HCLK] << CPM_CPCCR_HDIV_BIT) |
+ (pll_m_n[level][PLL_MCLK] << CPM_CPCCR_MDIV_BIT) | (pll_m_n[level][PLL_PCLK] << CPM_CPCCR_PDIV_BIT) |
+ (31 << CPM_CPCCR_LDIV_BIT);
+
+ REG_CPM_CPCCR = cpccr;
+ REG_CPM_CPPCR = cppcr;
+
+ REG_CPM_CPCCR |= CPM_CPCCR_CE;
+ //Wait PLL stable
+ while(!(CPM_CPPCR_PLLS & REG_CPM_CPPCR));
+
+ //REG_EMC_DMCR = dmcr;
+ REG_EMC_RTCOR = tref;
+ REG_EMC_RTCNT = tref;
+
+ detect_clockNew();
+ return 0;
+}
+
+
diff --git a/sdk-modifications/libsrc/core/ds2_cpuclock.h b/sdk-modifications/libsrc/core/ds2_cpuclock.h
new file mode 100644
index 0000000..c28635b
--- /dev/null
+++ b/sdk-modifications/libsrc/core/ds2_cpuclock.h
@@ -0,0 +1,22 @@
+#ifndef _DS2_CPUCLOCK_H__
+#define _DS2_CPUCLOCK_H__
+
+
+#define CPU_MAX_LEVEL_EX 18
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int ds2_getCPUClock(void);
+extern int ds2_setCPULevel(unsigned int level);
+extern void udelayOC(unsigned int usec);
+extern void mdelayOC(unsigned int msec);
+
+//#define ds2_setCPUclocklevel ds2_setCPULevel
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //__DS2_CPUCLOCK_H__
diff --git a/sdk-modifications/libsrc/core/ds2_dma.c b/sdk-modifications/libsrc/core/ds2_dma.c
new file mode 100644
index 0000000..0b0eca1
--- /dev/null
+++ b/sdk-modifications/libsrc/core/ds2_dma.c
@@ -0,0 +1,34 @@
+#include "ds2_dma.h"
+
+
+
+//register a DMA transfer request
+//ch: channel id request, there are 6 channles,
+//irq_handler: the DMA interruption handle
+//arg: argument to the handle
+//mode: DMA mode, such as port width, address increased/fixed, and so on
+//type: DMA request type
+extern int dma_request(int ch, void (*irq_handler)(unsigned int), unsigned int arg,
+ unsigned int mode, unsigned int type);
+
+//start DMA transfer, must request a DMA first
+//ch: channel id
+//srcAddr: DMA source address
+//dstAddr: DMA destination address
+//count: DMA transfer count, the total bytes due the mode in dma_request
+extern void dma_start(int ch, unsigned int srcAddr, unsigned int dstAddr,
+ unsigned int count);
+
+
+int _dmaCopy(int ch, void *dest, void *src, unsigned int size, unsigned int flags){
+ int test = 0;
+ if(!(test = dma_request(ch, 0, 0,
+ //increment dest addr
+ DMAC_DCMD_DAI | flags,
+ //auto request type
+ DMAC_DRSR_RS_AUTO)))
+ {
+ dma_start(ch, (unsigned int)src, (unsigned int)dest, size);
+ }
+ return test;
+}
diff --git a/sdk-modifications/libsrc/core/ds2_dma.h b/sdk-modifications/libsrc/core/ds2_dma.h
new file mode 100644
index 0000000..a66588a
--- /dev/null
+++ b/sdk-modifications/libsrc/core/ds2_dma.h
@@ -0,0 +1,142 @@
+#ifndef _DS2_DMA_H__
+#define _DS2_DMA_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#define MAX_DMA_NUM 6 /* max 6 channels */
+
+
+// DMA request source register
+#define DMAC_DRSR_RS_BIT 0
+#define DMAC_DRSR_RS_AUTO (8 << DMAC_DRSR_RS_BIT)
+
+
+// DMA channel command register
+#define DMAC_DCMD_SAI (1 << 23) /* source address increment */
+#define DMAC_DCMD_DAI (1 << 22) /* dest address increment */
+
+#define DMAC_DCMD_SWDH_BIT 14 /* source port width */
+#define DMAC_DCMD_SWDH_32 (0 << DMAC_DCMD_SWDH_BIT)
+#define DMAC_DCMD_SWDH_8 (1 << DMAC_DCMD_SWDH_BIT)
+#define DMAC_DCMD_SWDH_16 (2 << DMAC_DCMD_SWDH_BIT)
+
+#define DMAC_DCMD_DWDH_BIT 12 /* dest port width */
+#define DMAC_DCMD_DWDH_32 (0 << DMAC_DCMD_DWDH_BIT)
+#define DMAC_DCMD_DWDH_8 (1 << DMAC_DCMD_DWDH_BIT)
+ #define DMAC_DCMD_DWDH_16 (2 << DMAC_DCMD_DWDH_BIT)
+
+#define DMAC_DCMD_DS_BIT 8 /* transfer data size of a data unit */
+#define DMAC_DCMD_DS_32BIT (0 << DMAC_DCMD_DS_BIT)
+#define DMAC_DCMD_DS_8BIT (1 << DMAC_DCMD_DS_BIT)
+#define DMAC_DCMD_DS_16BIT (2 << DMAC_DCMD_DS_BIT)
+#define DMAC_DCMD_DS_16BYTE (3 << DMAC_DCMD_DS_BIT)
+#define DMAC_DCMD_DS_32BYTE (4 << DMAC_DCMD_DS_BIT)
+
+#define DMAC_DCMD_TM (1 << 7) /* transfer mode: 0-single 1-block */
+
+
+//detect if channel has completed job
+#define DMAC_DCCSR_TT (1 << 3) /* transfer terminated */
+#define DMAC_BASE 0xB3020000
+#define REG32(addr) *((volatile u32 *)(addr))
+#define DMAC_DCCSR(n) (DMAC_BASE + (0x10 + (n) * 0x20)) /* DMA control/status */
+#define REG_DMAC_DCCSR(n) REG32(DMAC_DCCSR((n)))
+
+#define ds2_DMA_isBusy(n) \
+ !( REG_DMAC_DCCSR((n)) & DMAC_DCCSR_TT )
+
+
+/*
+Copy modes
+
+*/
+
+#define DMA_MODE32BYTE DMAC_DCMD_SWDH_32 | DMAC_DCMD_DWDH_32 | \
+ DMAC_DCMD_DS_32BYTE | DMAC_DCMD_TM
+
+#define DMA_MODE16BYTE DMAC_DCMD_SWDH_16 | DMAC_DCMD_DWDH_16 | \
+ DMAC_DCMD_DS_16BYTE | DMAC_DCMD_TM
+
+#define DMA_MODE32BIT DMAC_DCMD_SWDH_32 | DMAC_DCMD_DWDH_32 | \
+ DMAC_DCMD_DS_32BIT
+
+#define DMA_MODE16BIT DMAC_DCMD_SWDH_16 | DMAC_DCMD_DWDH_16 | \
+ DMAC_DCMD_DS_16BIT
+
+#define DMA_MODE8BIT DMAC_DCMD_SWDH_8 | DMAC_DCMD_DWDH_8 | \
+ DMAC_DCMD_DS_8BIT | DMAC_DCMD_TM
+
+#define DMA_MODECOPY DMAC_DCMD_SAI
+
+
+
+extern int _dmaCopy(int ch, void *dest, void *src, unsigned int size, unsigned int flags);
+
+/*
+ * Copy 'size' bytes from src to dest, in blocks of 32 bytes.
+ * size is in bytes and must be a multiple of 32.
+ * Both src and dest must be aligned to 32 bytes.
+ * Returns 0 on failure, non-zero on success.
+ */
+#define ds2_DMAcopy_32Byte(ch, dest, src, size)\
+ _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE32BYTE)
+
+/*
+ * Copy 'size' bytes from src to dest, in blocks of 16 bytes.
+ * size is in bytes and must be a multiple of 16.
+ * Both src and dest must be aligned to 16 bytes.
+ * Returns 0 on failure, non-zero on success.
+ */
+#define ds2_DMAcopy_16Byte(ch, dest, src, size)\
+ _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE16BYTE);
+
+/*
+ * Copy 'size' bytes from src to dest, in blocks of 32 bits (4 bytes).
+ * size is in bytes and must be a multiple of 4.
+ * Both src and dest must be aligned to 32 bits (4 bytes).
+ * Returns 0 on failure, non-zero on success.
+ */
+#define ds2_DMAcopy_32Bit(ch, dest, src, size)\
+ _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE32BIT);
+
+/*
+- * Copy 'size' bytes from src to dest, in blocks of 16 bits (2 bytes).
+- * size is in bytes and must be a multiple of 2.
+- * Both src and dest must be aligned to 16 bits (2 bytes).
+- * Returns 0 on failure, non-zero on success.
+- */
+#define ds2_DMAcopy_16Bit(ch, dest, src, size)\
+ _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE16BIT)
+
+/*
+- * Copy 'size' individual bytes (8 bits at a time) from src to dest.
+- * Returns 0 on failure, non-zero on success.
+- */
+#define ds2_DMAcopy_8Bit(ch, dest, src, size)\
+ _dmaCopy(ch, dest, src, size, DMA_MODECOPY | DMA_MODE8BIT)
+
+
+
+//Stop DMA transfer
+extern void dma_stop(int ch);
+
+#define ds2_DMA_stop(ch)\
+ dma_stop(ch)
+
+//Wait DMA transfer over
+extern int dma_wait_finish(int ch);
+
+#define ds2_DMA_wait(ch)\
+ dma_wait_finish(ch)
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //__DMA_H__
+