Merge branch 'master' of ../linux-2.6/

[linux-2.6-omap-h63xx.git] / arch / blackfin / kernel / bfin_dma_5xx.c

diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index e19164fb4cd1dfe1de064e201643d72416ff6c53..5453bc3664fc40eb47474f8a2297c6ae7e0835ac 100644 (file)
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -104,6 +104,16 @@ int request_dma(unsigned int channel, char *device_id)
 
        mutex_unlock(&(dma_ch[channel].dmalock));
 
+#ifdef CONFIG_BF54x
+       if (channel >= CH_UART2_RX && channel <= CH_UART3_TX &&
+               strncmp(device_id, "BFIN_UART", 9) == 0)
+               dma_ch[channel].regs->peripheral_map |=
+                       (channel - CH_UART2_RX + 0xC);
+       else
+               dma_ch[channel].regs->peripheral_map |=
+                       (channel - CH_UART2_RX + 0x6);
+#endif
+
        dma_ch[channel].device_id = device_id;
        dma_ch[channel].irq_callback = NULL;
 
@@ -339,13 +349,13 @@ EXPORT_SYMBOL(set_dma_config);
 
 unsigned short
 set_bfin_dma_config(char direction, char flow_mode,
-                   char intr_mode, char dma_mode, char width)
+                   char intr_mode, char dma_mode, char width, char syncmode)
 {
        unsigned short config;
 
        config =
            ((direction << 1) | (width << 2) | (dma_mode << 4) |
-            (intr_mode << 6) | (flow_mode << 12) | RESTART);
+            (intr_mode << 6) | (flow_mode << 12) | (syncmode << 5));
        return config;
 }
 EXPORT_SYMBOL(set_bfin_dma_config);
@@ -420,6 +430,33 @@ unsigned short get_dma_curr_ycount(unsigned int channel)
 }
 EXPORT_SYMBOL(get_dma_curr_ycount);
 
+unsigned long get_dma_next_desc_ptr(unsigned int channel)
+{
+       BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE
+             && channel < MAX_BLACKFIN_DMA_CHANNEL));
+
+       return dma_ch[channel].regs->next_desc_ptr;
+}
+EXPORT_SYMBOL(get_dma_next_desc_ptr);
+
+unsigned long get_dma_curr_desc_ptr(unsigned int channel)
+{
+       BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE
+             && channel < MAX_BLACKFIN_DMA_CHANNEL));
+
+       return dma_ch[channel].regs->curr_desc_ptr;
+}
+EXPORT_SYMBOL(get_dma_curr_desc_ptr);
+
+unsigned long get_dma_curr_addr(unsigned int channel)
+{
+       BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE
+             && channel < MAX_BLACKFIN_DMA_CHANNEL));
+
+       return dma_ch[channel].regs->curr_addr_ptr;
+}
+EXPORT_SYMBOL(get_dma_curr_addr);
+
 static void *__dma_memcpy(void *dest, const void *src, size_t size)
 {
        int direction;  /* 1 - address decrease, 0 - address increase */