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/** @addtogroup dma_defines
@author @htmlonly © @endhtmlonly 2010
Thomas Otto <tommi@viadmin.org>
@author @htmlonly © @endhtmlonly 2012
Piotr Esden-Tempski <piotr@esden.net>
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
* Copyright (C) 2012 Piotr Esden-Tempski <piotr@esden.net>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**@{*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA DMA.H
The order of header inclusion is important. dma.h includes the device
specific memorymap.h header before including this header file.*/
/** @cond */
#ifdef LIBOPENCM3_DMA_H
/** @endcond */
#ifndef LIBOPENCM3_DMA_COMMON_F13_H
#define LIBOPENCM3_DMA_COMMON_F13_H
/* --- Convenience macros -------------------------------------------------- */
/* DMA register base adresses (for convenience) */
#define DMA1 DMA1_BASE
#define DMA2 DMA2_BASE
/* --- DMA registers ------------------------------------------------------- */
/* DMA interrupt status register (DMAx_ISR) */
#define DMA_ISR(dma_base) MMIO32(dma_base + 0x00)
#define DMA1_ISR DMA_ISR(DMA1)
#define DMA2_ISR DMA_ISR(DMA2)
/* DMA interrupt flag clear register (DMAx_IFCR) */
#define DMA_IFCR(dma_base) MMIO32(dma_base + 0x04)
#define DMA1_IFCR DMA_IFCR(DMA1)
#define DMA2_IFCR DMA_IFCR(DMA2)
/* DMA channel configuration register (DMAx_CCRy) */
#define DMA_CCR(dma_base, channel) MMIO32(dma_base + 0x08 + \
(0x14 * ((channel) - 1)))
#define DMA1_CCR(channel) DMA_CCR(DMA1, channel)
#define DMA1_CCR1 DMA1_CCR(DMA_CHANNEL1)
#define DMA1_CCR2 DMA1_CCR(DMA_CHANNEL2)
#define DMA1_CCR3 DMA1_CCR(DMA_CHANNEL3)
#define DMA1_CCR4 DMA1_CCR(DMA_CHANNEL4)
#define DMA1_CCR5 DMA1_CCR(DMA_CHANNEL5)
#define DMA1_CCR6 DMA1_CCR(DMA_CHANNEL6)
#define DMA1_CCR7 DMA1_CCR(DMA_CHANNEL7)
#define DMA2_CCR(channel) DMA_CCR(DMA2, channel)
#define DMA2_CCR1 DMA2_CCR(DMA_CHANNEL1)
#define DMA2_CCR2 DMA2_CCR(DMA_CHANNEL2)
#define DMA2_CCR3 DMA2_CCR(DMA_CHANNEL3)
#define DMA2_CCR4 DMA2_CCR(DMA_CHANNEL4)
#define DMA2_CCR5 DMA2_CCR(DMA_CHANNEL5)
/* DMA number of data register (DMAx_CNDTRy) */
#define DMA_CNDTR(dma_base, channel) MMIO32(dma_base + 0x0C + \
(0x14 * ((channel) - 1)))
#define DMA1_CNDTR(channel) DMA_CNDTR(DMA1, channel)
#define DMA1_CNDTR1 DMA1_CNDTR(DMA_CHANNEL1)
#define DMA1_CNDTR2 DMA1_CNDTR(DMA_CHANNEL2)
#define DMA1_CNDTR3 DMA1_CNDTR(DMA_CHANNEL3)
#define DMA1_CNDTR4 DMA1_CNDTR(DMA_CHANNEL4)
#define DMA1_CNDTR5 DMA1_CNDTR(DMA_CHANNEL5)
#define DMA1_CNDTR6 DMA1_CNDTR(DMA_CHANNEL6)
#define DMA1_CNDTR7 DMA1_CNDTR(DMA_CHANNEL7)
#define DMA2_CNDTR(channel) DMA_CNDTR(DMA2, channel)
#define DMA2_CNDTR1 DMA2_CNDTR(DMA_CHANNEL1)
#define DMA2_CNDTR2 DMA2_CNDTR(DMA_CHANNEL2)
#define DMA2_CNDTR3 DMA2_CNDTR(DMA_CHANNEL3)
#define DMA2_CNDTR4 DMA2_CNDTR(DMA_CHANNEL4)
#define DMA2_CNDTR5 DMA2_CNDTR(DMA_CHANNEL5)
/* DMA peripheral address register (DMAx_CPARy) */
#define DMA_CPAR(dma_base, channel) MMIO32(dma_base + 0x10 + \
(0x14 * ((channel) - 1)))
#define DMA1_CPAR(channel) DMA_CPAR(DMA1, channel)
#define DMA1_CPAR1 DMA1_CPAR(DMA_CHANNEL1)
#define DMA1_CPAR2 DMA1_CPAR(DMA_CHANNEL2)
#define DMA1_CPAR3 DMA1_CPAR(DMA_CHANNEL3)
#define DMA1_CPAR4 DMA1_CPAR(DMA_CHANNEL4)
#define DMA1_CPAR5 DMA1_CPAR(DMA_CHANNEL5)
#define DMA1_CPAR6 DMA1_CPAR(DMA_CHANNEL6)
#define DMA1_CPAR7 DMA1_CPAR(DMA_CHANNEL7)
#define DMA2_CPAR(channel) DMA_CPAR(DMA2, channel)
#define DMA2_CPAR1 DMA2_CPAR(DMA_CHANNEL1)
#define DMA2_CPAR2 DMA2_CPAR(DMA_CHANNEL2)
#define DMA2_CPAR3 DMA2_CPAR(DMA_CHANNEL3)
#define DMA2_CPAR4 DMA2_CPAR(DMA_CHANNEL4)
#define DMA2_CPAR5 DMA2_CPAR(DMA_CHANNEL5)
/* DMA memory address register (DMAx_CMARy) */
#define DMA_CMAR(dma_base, channel) MMIO32(dma_base + 0x14 + \
(0x14 * ((channel) - 1)))
#define DMA1_CMAR(channel) DMA_CMAR(DMA1, channel)
#define DMA1_CMAR1 DMA1_CMAR(DMA_CHANNEL1)
#define DMA1_CMAR2 DMA1_CMAR(DMA_CHANNEL2)
#define DMA1_CMAR3 DMA1_CMAR(DMA_CHANNEL3)
#define DMA1_CMAR4 DMA1_CMAR(DMA_CHANNEL4)
#define DMA1_CMAR5 DMA1_CMAR(DMA_CHANNEL5)
#define DMA1_CMAR6 DMA1_CMAR(DMA_CHANNEL6)
#define DMA1_CMAR7 DMA1_CMAR(DMA_CHANNEL7)
#define DMA2_CMAR(channel) DMA_CMAR(DMA2, channel)
#define DMA2_CMAR1 DMA2_CMAR(DMA_CHANNEL1)
#define DMA2_CMAR2 DMA2_CMAR(DMA_CHANNEL2)
#define DMA2_CMAR3 DMA2_CMAR(DMA_CHANNEL3)
#define DMA2_CMAR4 DMA2_CMAR(DMA_CHANNEL4)
#define DMA2_CMAR5 DMA2_CMAR(DMA_CHANNEL5)
/* --- DMA_ISR values ------------------------------------------------------ */
/* --- DMA Interrupt Flag offset values ------------------------------------- */
/* These are based on every interrupt flag and flag clear being at the same
* relative location
*/
/** @defgroup dma_if_offset DMA Interrupt Flag Offsets within channel flag
group.
@ingroup dma_defines
@{*/
/** Transfer Error Interrupt Flag */
#define DMA_TEIF (1 << 3)
/** Half Transfer Interrupt Flag */
#define DMA_HTIF (1 << 2)
/** Transfer Complete Interrupt Flag */
#define DMA_TCIF (1 << 1)
/** Global Interrupt Flag */
#define DMA_GIF (1 << 0)
/**@}*/
/* Offset within interrupt status register to start of channel interrupt flag
* field
*/
#define DMA_FLAG_OFFSET(channel) (4*(channel - 1))
#define DMA_FLAGS (DMA_TEIF | DMA_TCIF | DMA_HTIF | \
DMA_GIF)
#define DMA_ISR_MASK(channel) (DMA_FLAGS << DMA_FLAG_OFFSET(channel))
/* TEIF: Transfer error interrupt flag */
#define DMA_ISR_TEIF_BIT DMA_TEIF
#define DMA_ISR_TEIF(channel) (DMA_ISR_TEIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_ISR_TEIF1 DMA_ISR_TEIF(DMA_CHANNEL1)
#define DMA_ISR_TEIF2 DMA_ISR_TEIF(DMA_CHANNEL2)
#define DMA_ISR_TEIF3 DMA_ISR_TEIF(DMA_CHANNEL3)
#define DMA_ISR_TEIF4 DMA_ISR_TEIF(DMA_CHANNEL4)
#define DMA_ISR_TEIF5 DMA_ISR_TEIF(DMA_CHANNEL5)
#define DMA_ISR_TEIF6 DMA_ISR_TEIF(DMA_CHANNEL6)
#define DMA_ISR_TEIF7 DMA_ISR_TEIF(DMA_CHANNEL7)
/* HTIF: Half transfer interrupt flag */
#define DMA_ISR_HTIF_BIT DMA_HTIF
#define DMA_ISR_HTIF(channel) (DMA_ISR_HTIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_ISR_HTIF1 DMA_ISR_HTIF(DMA_CHANNEL1)
#define DMA_ISR_HTIF2 DMA_ISR_HTIF(DMA_CHANNEL2)
#define DMA_ISR_HTIF3 DMA_ISR_HTIF(DMA_CHANNEL3)
#define DMA_ISR_HTIF4 DMA_ISR_HTIF(DMA_CHANNEL4)
#define DMA_ISR_HTIF5 DMA_ISR_HTIF(DMA_CHANNEL5)
#define DMA_ISR_HTIF6 DMA_ISR_HTIF(DMA_CHANNEL6)
#define DMA_ISR_HTIF7 DMA_ISR_HTIF(DMA_CHANNEL7)
/* TCIF: Transfer complete interrupt flag */
#define DMA_ISR_TCIF_BIT DMA_TCIF
#define DMA_ISR_TCIF(channel) (DMA_ISR_TCIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_ISR_TCIF1 DMA_ISR_TCIF(DMA_CHANNEL1)
#define DMA_ISR_TCIF2 DMA_ISR_TCIF(DMA_CHANNEL2)
#define DMA_ISR_TCIF3 DMA_ISR_TCIF(DMA_CHANNEL3)
#define DMA_ISR_TCIF4 DMA_ISR_TCIF(DMA_CHANNEL4)
#define DMA_ISR_TCIF5 DMA_ISR_TCIF(DMA_CHANNEL5)
#define DMA_ISR_TCIF6 DMA_ISR_TCIF(DMA_CHANNEL6)
#define DMA_ISR_TCIF7 DMA_ISR_TCIF(DMA_CHANNEL7)
/* GIF: Global interrupt flag */
#define DMA_ISR_GIF_BIT DMA_GIF
#define DMA_ISR_GIF(channel) (DMA_ISR_GIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_ISR_GIF1 DMA_ISR_GIF(DMA_CHANNEL1)
#define DMA_ISR_GIF2 DMA_ISR_GIF(DMA_CHANNEL2)
#define DMA_ISR_GIF3 DMA_ISR_GIF(DMA_CHANNEL3)
#define DMA_ISR_GIF4 DMA_ISR_GIF(DMA_CHANNEL4)
#define DMA_ISR_GIF5 DMA_ISR_GIF(DMA_CHANNEL5)
#define DMA_ISR_GIF6 DMA_ISR_GIF(DMA_CHANNEL6)
#define DMA_ISR_GIF7 DMA_ISR_GIF(DMA_CHANNEL7)
/* --- DMA_IFCR values ----------------------------------------------------- */
/* CTEIF: Transfer error clear */
#define DMA_IFCR_CTEIF_BIT DMA_TEIF
#define DMA_IFCR_CTEIF(channel) (DMA_IFCR_CTEIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_IFCR_CTEIF1 DMA_IFCR_CTEIF(DMA_CHANNEL1)
#define DMA_IFCR_CTEIF2 DMA_IFCR_CTEIF(DMA_CHANNEL2)
#define DMA_IFCR_CTEIF3 DMA_IFCR_CTEIF(DMA_CHANNEL3)
#define DMA_IFCR_CTEIF4 DMA_IFCR_CTEIF(DMA_CHANNEL4)
#define DMA_IFCR_CTEIF5 DMA_IFCR_CTEIF(DMA_CHANNEL5)
#define DMA_IFCR_CTEIF6 DMA_IFCR_CTEIF(DMA_CHANNEL6)
#define DMA_IFCR_CTEIF7 DMA_IFCR_CTEIF(DMA_CHANNEL7)
/* CHTIF: Half transfer clear */
#define DMA_IFCR_CHTIF_BIT DMA_HTIF
#define DMA_IFCR_CHTIF(channel) (DMA_IFCR_CHTIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_IFCR_CHTIF1 DMA_IFCR_CHTIF(DMA_CHANNEL1)
#define DMA_IFCR_CHTIF2 DMA_IFCR_CHTIF(DMA_CHANNEL2)
#define DMA_IFCR_CHTIF3 DMA_IFCR_CHTIF(DMA_CHANNEL3)
#define DMA_IFCR_CHTIF4 DMA_IFCR_CHTIF(DMA_CHANNEL4)
#define DMA_IFCR_CHTIF5 DMA_IFCR_CHTIF(DMA_CHANNEL5)
#define DMA_IFCR_CHTIF6 DMA_IFCR_CHTIF(DMA_CHANNEL6)
#define DMA_IFCR_CHTIF7 DMA_IFCR_CHTIF(DMA_CHANNEL7)
/* CTCIF: Transfer complete clear */
#define DMA_IFCR_CTCIF_BIT DMA_TCIF
#define DMA_IFCR_CTCIF(channel) (DMA_IFCR_CTCIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_IFCR_CTCIF1 DMA_IFCR_CTCIF(DMA_CHANNEL1)
#define DMA_IFCR_CTCIF2 DMA_IFCR_CTCIF(DMA_CHANNEL2)
#define DMA_IFCR_CTCIF3 DMA_IFCR_CTCIF(DMA_CHANNEL3)
#define DMA_IFCR_CTCIF4 DMA_IFCR_CTCIF(DMA_CHANNEL4)
#define DMA_IFCR_CTCIF5 DMA_IFCR_CTCIF(DMA_CHANNEL5)
#define DMA_IFCR_CTCIF6 DMA_IFCR_CTCIF(DMA_CHANNEL6)
#define DMA_IFCR_CTCIF7 DMA_IFCR_CTCIF(DMA_CHANNEL7)
/* CGIF: Global interrupt clear */
#define DMA_IFCR_CGIF_BIT DMA_GIF
#define DMA_IFCR_CGIF(channel) (DMA_IFCR_CGIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_IFCR_CGIF1 DMA_IFCR_CGIF(DMA_CHANNEL1)
#define DMA_IFCR_CGIF2 DMA_IFCR_CGIF(DMA_CHANNEL2)
#define DMA_IFCR_CGIF3 DMA_IFCR_CGIF(DMA_CHANNEL3)
#define DMA_IFCR_CGIF4 DMA_IFCR_CGIF(DMA_CHANNEL4)
#define DMA_IFCR_CGIF5 DMA_IFCR_CGIF(DMA_CHANNEL5)
#define DMA_IFCR_CGIF6 DMA_IFCR_CGIF(DMA_CHANNEL6)
#define DMA_IFCR_CGIF7 DMA_IFCR_CGIF(DMA_CHANNEL7)
/* Clear interrupts mask */
#define DMA_IFCR_CIF_BIT 0xF
#define DMA_IFCR_CIF(channel) (DMA_IFCR_CIF_BIT << \
(DMA_FLAG_OFFSET(channel)))
#define DMA_IFCR_CIF1 DMA_IFCR_CIF(DMA_CHANNEL1)
#define DMA_IFCR_CIF2 DMA_IFCR_CIF(DMA_CHANNEL2)
#define DMA_IFCR_CIF3 DMA_IFCR_CIF(DMA_CHANNEL3)
#define DMA_IFCR_CIF4 DMA_IFCR_CIF(DMA_CHANNEL4)
#define DMA_IFCR_CIF5 DMA_IFCR_CIF(DMA_CHANNEL5)
#define DMA_IFCR_CIF6 DMA_IFCR_CIF(DMA_CHANNEL6)
#define DMA_IFCR_CIF7 DMA_IFCR_CIF(DMA_CHANNEL7)
/* --- DMA_CCRx generic values --------------------------------------------- */
/* MEM2MEM: Memory to memory mode */
#define DMA_CCR_MEM2MEM (1 << 14)
/* PL[13:12]: Channel priority level */
/** @defgroup dma_ch_pri DMA Channel Priority Levels
@ingroup dma_defines
@{*/
#define DMA_CCR_PL_LOW (0x0 << 12)
#define DMA_CCR_PL_MEDIUM (0x1 << 12)
#define DMA_CCR_PL_HIGH (0x2 << 12)
#define DMA_CCR_PL_VERY_HIGH (0x3 << 12)
/**@}*/
#define DMA_CCR_PL_MASK (0x3 << 12)
#define DMA_CCR_PL_SHIFT 12
/* MSIZE[11:10]: Memory size */
/** @defgroup dma_ch_memwidth DMA Channel Memory Word Width
@ingroup dma_defines
@{*/
#define DMA_CCR_MSIZE_8BIT (0x0 << 10)
#define DMA_CCR_MSIZE_16BIT (0x1 << 10)
#define DMA_CCR_MSIZE_32BIT (0x2 << 10)
/**@}*/
#define DMA_CCR_MSIZE_MASK (0x3 << 10)
#define DMA_CCR_MSIZE_SHIFT 10
/* PSIZE[9:8]: Peripheral size */
/** @defgroup dma_ch_perwidth DMA Channel Peripheral Word Width
@ingroup dma_defines
@{*/
#define DMA_CCR_PSIZE_8BIT (0x0 << 8)
#define DMA_CCR_PSIZE_16BIT (0x1 << 8)
#define DMA_CCR_PSIZE_32BIT (0x2 << 8)
/**@}*/
#define DMA_CCR_PSIZE_MASK (0x3 << 8)
#define DMA_CCR_PSIZE_SHIFT 8
/* MINC: Memory increment mode */
#define DMA_CCR_MINC (1 << 7)
/* PINC: Peripheral increment mode */
#define DMA_CCR_PINC (1 << 6)
/* CIRC: Circular mode */
#define DMA_CCR_CIRC (1 << 5)
/* DIR: Data transfer direction */
#define DMA_CCR_DIR (1 << 4)
/* TEIE: Transfer error interrupt enable */
#define DMA_CCR_TEIE (1 << 3)
/* HTIE: Half transfer interrupt enable */
#define DMA_CCR_HTIE (1 << 2)
/* TCIE: Transfer complete interrupt enable */
#define DMA_CCR_TCIE (1 << 1)
/* EN: Channel enable */
#define DMA_CCR_EN (1 << 0)
/* --- DMA_CNDTRx values --------------------------------------------------- */
/* NDT[15:0]: Number of data to transfer */
/* --- DMA_CPARx values ---------------------------------------------------- */
/* PA[31:0]: Peripheral address */
/* --- DMA_CMARx values ---------------------------------------------------- */
/* MA[31:0]: Memory address */
/* --- Generic values ------------------------------------------------------ */
/** @defgroup dma_ch DMA Channel Number
@ingroup dma_defines
@{*/
#define DMA_CHANNEL1 1
#define DMA_CHANNEL2 2
#define DMA_CHANNEL3 3
#define DMA_CHANNEL4 4
#define DMA_CHANNEL5 5
#define DMA_CHANNEL6 6
#define DMA_CHANNEL7 7
/**@}*/
/* --- function prototypes ------------------------------------------------- */
BEGIN_DECLS
void dma_channel_reset(uint32_t dma, uint8_t channel);
void dma_clear_interrupt_flags(uint32_t dma, uint8_t channel,
uint32_t interrupts);
bool dma_get_interrupt_flag(uint32_t dma, uint8_t channel, uint32_t interrupts);
void dma_enable_mem2mem_mode(uint32_t dma, uint8_t channel);
void dma_set_priority(uint32_t dma, uint8_t channel, uint32_t prio);
void dma_set_memory_size(uint32_t dma, uint8_t channel, uint32_t mem_size);
void dma_set_peripheral_size(uint32_t dma, uint8_t channel,
uint32_t peripheral_size);
void dma_enable_memory_increment_mode(uint32_t dma, uint8_t channel);
void dma_disable_memory_increment_mode(uint32_t dma, uint8_t channel);
void dma_enable_peripheral_increment_mode(uint32_t dma, uint8_t channel);
void dma_disable_peripheral_increment_mode(uint32_t dma, uint8_t channel);
void dma_enable_circular_mode(uint32_t dma, uint8_t channel);
void dma_set_read_from_peripheral(uint32_t dma, uint8_t channel);
void dma_set_read_from_memory(uint32_t dma, uint8_t channel);
void dma_enable_transfer_error_interrupt(uint32_t dma, uint8_t channel);
void dma_disable_transfer_error_interrupt(uint32_t dma, uint8_t channel);
void dma_enable_half_transfer_interrupt(uint32_t dma, uint8_t channel);
void dma_disable_half_transfer_interrupt(uint32_t dma, uint8_t channel);
void dma_enable_transfer_complete_interrupt(uint32_t dma, uint8_t channel);
void dma_disable_transfer_complete_interrupt(uint32_t dma, uint8_t channel);
void dma_enable_channel(uint32_t dma, uint8_t channel);
void dma_disable_channel(uint32_t dma, uint8_t channel);
void dma_set_peripheral_address(uint32_t dma, uint8_t channel,
uint32_t address);
void dma_set_memory_address(uint32_t dma, uint8_t channel, uint32_t address);
void dma_set_number_of_data(uint32_t dma, uint8_t channel, uint16_t number);
END_DECLS
#endif
/** @cond */
#else
#warning "dma_common_f13.h should not be included explicitly, only via dma.h"
#endif
/** @endcond */
/**@}*/
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