diff options
Diffstat (limited to 'arch/blackfin/kernel/bfin_dma_5xx.c')
| -rw-r--r-- | arch/blackfin/kernel/bfin_dma_5xx.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index e19164fb4cd1..503eef4c7fec 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -420,6 +420,32 @@ 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; +} + +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 */ |