From: asterix <asterix@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Fri, 2 Sep 2011 16:15:48 +0000 (+0000)
Subject: The dmac trigger is differnt for rx and tx.
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=64b58c3028c86c7af96e38427648db55c7ba2474;p=bertos.git

The dmac trigger is differnt for rx and tx.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@5012 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/cpu/cortex-m3/drv/hsmci_sam3.c b/bertos/cpu/cortex-m3/drv/hsmci_sam3.c
index b32d688b..cc9b2718 100644
--- a/bertos/cpu/cortex-m3/drv/hsmci_sam3.c
+++ b/bertos/cpu/cortex-m3/drv/hsmci_sam3.c
@@ -167,6 +167,18 @@ void hsmci_prgTxDMA(uint32_t *buf, size_t word_num, size_t blk_size)
 
 	hsmci_setBlockSize(blk_size);
 
+	//init DMAC
+	DMAC_EBCIDR = 0x3FFFFF;
+	DMAC_CHDR = 0x1F;
+	DMAC_CFG0 = BV(DMAC_CFG_DST_H2SEL) | DMAC_CFG_FIFOCFG_ALAP_CFG | (0x1 << DMAC_CFG_AHB_PROT_SHIFT);
+
+	pmc_periphEnable(DMAC_ID);
+	DMAC_EN = BV(DMAC_EN_ENABLE);
+	sysirq_setHandler(INT_DMAC, dmac_irq);
+
+	DMAC_EBCIER = BV(DMAC_EBCIER_BTC0) | BV(DMAC_EBCIER_ERR0);
+
+
 	DMAC_CHDR = BV(DMAC_CHDR_DIS0);
 
 	DMAC_SADDR0 = (uint32_t)buf;
@@ -194,6 +206,17 @@ void hsmci_prgRxDMA(uint32_t *buf, size_t word_num, size_t blk_size)
 {
 	hsmci_setBlockSize(blk_size);
 
+	//init DMAC
+	DMAC_EBCIDR = 0x3FFFFF;
+	DMAC_CHDR = 0x1F;
+	DMAC_CFG0 = BV(DMAC_CFG_SRC_H2SEL) | DMAC_CFG_FIFOCFG_ALAP_CFG | (0x1 << DMAC_CFG_AHB_PROT_SHIFT);
+
+	pmc_periphEnable(DMAC_ID);
+	DMAC_EN = BV(DMAC_EN_ENABLE);
+	sysirq_setHandler(INT_DMAC, dmac_irq);
+
+	DMAC_EBCIER = BV(DMAC_EBCIER_BTC0) | BV(DMAC_EBCIER_ERR0);
+
 	DMAC_CHDR = BV(DMAC_CHDR_DIS0);
 
 	DMAC_SADDR0 = (uint32_t)&HSMCI_RDR;
@@ -256,16 +279,4 @@ void hsmci_init(Hsmci *hsmci)
 	HSMCI_CR = BV(HSMCI_CR_MCIEN);
 	HSMCI_DMA = 0;
 
-
-	//init DMAC
-	DMAC_EBCIDR = 0x3FFFFF;
-	DMAC_CHDR = 0x1F;
-	DMAC_CFG0 = BV(DMAC_CFG_SRC_H2SEL) | DMAC_CFG_FIFOCFG_ALAP_CFG | (0x1 << DMAC_CFG_AHB_PROT_SHIFT);
-
-	pmc_periphEnable(DMAC_ID);
-	DMAC_EN = BV(DMAC_EN_ENABLE);
-	sysirq_setHandler(INT_DMAC, dmac_irq);
-
-	DMAC_EBCIER = BV(DMAC_EBCIER_BTC0) | BV(DMAC_EBCIER_ERR0);
-
 }