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rt-thread-official/bsp/raspberry-pi/raspi4-32/driver/drv_dma.h

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-12-02 bigmagic first version
*/
#ifndef __DRV_DMA_H__
#define __DRV_DMA_H__
#include <rthw.h>
#define DMA_PER_BASE (0xFE000000)
//DMA
#define DMA_BASE (DMA_PER_BASE+0x7000)
#define DMA_INT_STATUS (DMA_BASE + 0xFE0) //Interrupt Status of each DMA Channel
#define DMA_ENABLE (DMA_BASE + 0xFF0) //Global Enable bits for each DMA Channel */
#define DMA15_BASE (DMA_PER_BASE+0xE05000) //DMA Channel 15 Register Set */
#define DMA_INT_STATUS_REG __REG32(DMA_INT_STATUS)
#define DMA_ENABLE_REG __REG32(DMA_ENABLE)
//DMA dch 1~14
#define DMA_CS(dch) __REG32(DMA_BASE + dch*0x100 + 0x000) /* Control and Status */
#define DMA_CONBLK_AD(dch) __REG32(DMA_BASE + dch*0x100 + 0x004) /* Control Block Address */
#define DMA_TI(dch) __REG32(DMA_BASE + dch*0x100 + 0x008) /* CB Word 0(Transfer Information) */
#define DMA_SOURCE_AD(dch) __REG32(DMA_BASE + dch*0x100 + 0x00c) /* CB Word 1(Source Address) */
#define DMA_DEST_AD(dch) __REG32(DMA_BASE + dch*0x100 + 0x010) /* CB Word 2(Destination Address) */
#define DMA_TXFR_LEN(dch) __REG32(DMA_BASE + dch*0x100 + 0x014) /* CB Word 3(Transfer Length) */
#define DMA_STRIDE(dch) __REG32(DMA_BASE + dch*0x100 + 0x018) /* CB Word 4(2D Stride) */
#define DMA_NEXTCONBK(dch) __REG32(DMA_BASE + dch*0x100 + 0x01c) /* CB Word 5(Next CB Address) */
#define DMA_DEBUG(dch) __REG32(DMA_BASE + dch*0x100 + 0x01c) /* Debug */
//DMA dch 15
#define DMA15_CS __REG32(DMA15_BASE + 0x000) /* Control and Status */
#define DMA15_CONBLK_AD __REG32(DMA15_BASE + 0x004) /* Control Block Address */
#define DMA15_TI __REG32(DMA15_BASE + 0x008) /* CB Word 0(Transfer Information) */
#define DMA15_SOURCE_AD __REG32(DMA15_BASE + 0x00c) /* CB Word 1(Source Address) */
#define DMA15_DEST_AD __REG32(DMA15_BASE + 0x010) /* CB Word 2(Destination Address) */
#define DMA15_TXFR_LEN __REG32(DMA15_BASE + 0x014) /* CB Word 3(Transfer Length) */
#define DMA15_STRIDE __REG32(DMA15_BASE + 0x018) /* CB Word 4(2D Stride) */
#define DMA15_NEXTCONBK __REG32(DMA15_BASE + 0x01c) /* CB Word 5(Next CB Address) */
#define DMA15_DEBUG __REG32(DMA15_BASE + 0x01c) /* Debug */
#define DMA15_ENABLE (1 << 15)
#define DMA14_ENABLE (1 << 14)
#define DMA13_ENABLE (1 << 13)
#define DMA12_ENABLE (1 << 12)
#define DMA11_ENABLE (1 << 11)
#define DMA10_ENABLE (1 << 10)
#define DMA9_ENABLE (1 << 9)
#define DMA8_ENABLE (1 << 8)
#define DMA7_ENABLE (1 << 7)
#define DMA6_ENABLE (1 << 6)
#define DMA5_ENABLE (1 << 5)
#define DMA4_ENABLE (1 << 4)
#define DMA3_ENABLE (1 << 3)
#define DMA2_ENABLE (1 << 2)
#define DMA1_ENABLE (1 << 1)
#define DMA0_ENABLE (1 << 0)
//Peripheral DREQ Signals
#define DREQ_DSI0_PWM1 (1)
#define DREQ_PCM_TX (2)
#define DREQ_PCM_RX (3)
#define DREQ_SMI (4)
#define DREQ_PWM0 (5)
#define DREQ_SPI0_TX (6)
#define DREQ_SPI0_RX (7)
#define DREQ_BSC_SPI_SLAVE_TX (8)
#define DREQ_BSC_SPI_SLAVE_RX (9)
#define DREQ_HSMI0 (10)
#define DREQ_EMMC (11)
#define DREQ_UART0_TX (12)
#define DREQ_SD_HOST (13)
#define DREQ_UART0_RX (14)
#define DREQ_DSI1 (15)
#define DREQ_SPI1_TX (16)
#define DREQ_HDMI1 (17)
#define DREQ_SPI1_RX (18)
#define DREQ_UART3_TX_SPI4_TX (19)
#define DREQ_UART3_RX_SPI4_RX (20)
#define DREQ_UART5_TX_SPI5_TX (21)
#define DREQ_UART5_RX_SPI5_RX (22)
#define DREQ_SPI6_TX (23)
#define DREQ_SCALER_FIFO0_SMI (24)
#define DREQ_SCALER_FIFO1_SMI (25)
#define DREQ_SCALER_FIFO2_SMI (26)
#define DREQ_SPI6_RX (27)
#define DREQ_UART2_TX (28)
#define DREQ_UART2_RX (29)
#define DREQ_UART4_TX (30)
#define DREQ_UART4_RX (31)
//IRQ
#define DMA_INT15 (1 << 15)
#define DMA_INT14 (1 << 14)
#define DMA_INT13 (1 << 13)
#define DMA_INT12 (1 << 12)
#define DMA_INT11 (1 << 11)
#define DMA_INT10 (1 << 10)
#define DMA_INT9 (1 << 9)
#define DMA_INT8 (1 << 8)
#define DMA_INT7 (1 << 7)
#define DMA_INT6 (1 << 6)
#define DMA_INT5 (1 << 5)
#define DMA_INT4 (1 << 4)
#define DMA_INT3 (1 << 3)
#define DMA_INT2 (1 << 2)
#define DMA_INT1 (1 << 1)
#define DMA_INT0 (1 << 0)
//IRQ_NUMBER
#define IRQ_DMA0 (96 + 16)
#define IRQ_DMA1 (96 + 17)
#define IRQ_DMA2 (96 + 18)
#define IRQ_DMA3 (96 + 19)
#define IRQ_DMA4 (96 + 20)
#define IRQ_DMA5 (96 + 21)
#define IRQ_DMA6 (96 + 22)
#define IRQ_DMA7_DMA8 (96 + 23)
#define IRQ_DMA9_DMA10 (96 + 24)
#define IRQ_DMA11 (96 + 25)
#define IRQ_DMA12 (96 + 26)
#define IRQ_DMA13 (96 + 27)
#define IRQ_DMA14 (96 + 28)
#define IRQ_DMA15 (96 + 31)
//CS
#define DMA_CS_RESET (1 << 31)
#define DMA_CS_ABORT (1 << 30)
#define DMA_CS_DISDEBUG (1 << 29)
#define DMA_CS_DREQ_STOPS_DMA (1 << 5)
#define DMA_CS_PAUSED (1 << 4)
#define DMA_CS_DREQ (1 << 3)
#define DMA_CS_INT (1 << 2)
#define DMA_CS_END (1 << 1)
#define DMA_CS_ACTIVE (1 << 0)
//CONBLK_AD
//The address must be256-bit aligned, so the bottom 5 bits of the address mustbe zero.
//TI
//DMA Transfer Information.
#define DMA_TI_SRC_IGNORE (1 << 11)
#define DMA_TI_SRC_DREQ (1 << 10)
#define DMA_TI_SRC_WIDTH (1 << 9)
#define DMA_TI_SRC_INC (1 << 8)
#define DMA_TI_DEST_IGNORE (1 << 7)
#define DMA_TI_DEST_DREQ (1 << 6)
#define DMA_TI_DEST_WIDTH (1 << 5)
#define DMA_TI_DEST_INC (1 << 4)
#define DMA_TI_WAIT_RESP (1 << 3)
#define DMA_TI_TDMODE (1 << 1)
#define DMA_TI_INTEN (1 << 0)
//SOURCE_AD
//DMA Source Address
//DEST_AD
//DMA Destination Address
//TXFR_LEN
//DMA Transfer Length
void dma_init(unsigned char dch);
rt_err_t dma_memcpy(void *src, void *dst, unsigned int size, unsigned int dch, unsigned int timeout);
#endif
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