maxim_dma.h

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/***************************************************************************/
#ifndef MAXIM_DMA_H_
#define MAXIM_DMA_H_
 
#include <stdint.h>
#include "no_os_dma.h"
#include "dma.h"
 
#if TARGET_NUM == 32650
#include "max32650.h"
#elif TARGET_NUM == 32655
#include "max32655.h"
#elif TARGET_NUM == 32660
#include "max32660.h"
#elif TARGET_NUM == 32665
#include "max32665.h"
#elif TARGET_NUM == 32690
#include "max32690.h"
#elif TARGET_NUM == 78000
#include "max78000.h"
#endif
 
#define MAX_DMA         ((struct max_dma_regs *)(MXC_DMA))
#define MAX_DMA_IRQ_EN_ALL_CH   NO_OS_GENMASK(15, 0)
#define MAX_DMA_ENABLED     NO_OS_BIT(0)
#define MAX_DMA_ENABLE      NO_OS_BIT(0)
#define MAX_DMA_IRQ_CTZ_EN  NO_OS_BIT(31)
#define MAX_DMA_REQSEL_MASK NO_OS_GENMASK(9, 4)
#define MAX_DMA_DST_INC     NO_OS_BIT(22)
#define MAX_DMA_SRC_INC     NO_OS_BIT(18)
 
struct max_dma_ch_regs {
    volatile uint32_t cfg;
    volatile uint32_t st;
    volatile uint32_t src;
    volatile uint32_t dst;
    volatile uint32_t cnt;
    volatile uint32_t src_rld;
    volatile uint32_t dst_rld;
    volatile uint32_t cnt_rld;
};
struct max_dma_ch_regs {…};
 
struct max_dma_regs {
    volatile uint32_t cn;
    volatile const uint32_t intr;
    const uint32_t rsv_0x8_0xff[62];
    volatile struct max_dma_ch_regs ch[MXC_DMA_CHANNELS];
};
struct max_dma_regs {…};
 
extern struct no_os_dma_platform_ops max_dma_ops;

static inline uint32_t max_dma_get_irq(uint32_t id, uint32_t ch)
{
#if TARGET_NUM == 32665
    if (!id)
        return MXC_DMA0_CH_GET_IRQ(ch);
 
    return MXC_DMA1_CH_GET_IRQ(ch);
#else
    return MXC_DMA_CH_GET_IRQ(ch);
#endif
}
 
#endif