Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
天中雨水
rt-thread
提交
091089f1
R
rt-thread
项目概览
天中雨水
/
rt-thread
该项目与 Fork 源项目分叉
Fork自
RT-Thread / rt-thread
通知
2
Star
1
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
1
列表
看板
标记
里程碑
合并请求
0
DevOps
流水线
流水线任务
计划
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
R
rt-thread
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
1
Issue
1
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
DevOps
DevOps
流水线
流水线任务
计划
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
流水线任务
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
提交
091089f1
编写于
12月 02, 2020
作者:
B
bigmagic
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
add dma ch7 driver
上级
ef1c7f20
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
286 addition
and
1 deletion
+286
-1
bsp/raspberry-pi/raspi4-32/driver/board.c
bsp/raspberry-pi/raspi4-32/driver/board.c
+1
-1
bsp/raspberry-pi/raspi4-32/driver/drv_dma.c
bsp/raspberry-pi/raspi4-32/driver/drv_dma.c
+113
-0
bsp/raspberry-pi/raspi4-32/driver/drv_dma.h
bsp/raspberry-pi/raspi4-32/driver/drv_dma.h
+172
-0
未找到文件。
bsp/raspberry-pi/raspi4-32/driver/board.c
浏览文件 @
091089f1
...
...
@@ -24,7 +24,7 @@ struct mem_desc platform_mem_desc[] = {
{
0x0E000000
,
0x0EE00000
,
0x0E000000
,
DEVICE_MEM
},
//framebuffer
{
0x0F400000
,
0x0FA00000
,
0x0F400000
,
DEVICE_MEM
},
//dsi_touch
{
0xFD500000
,
0xFDA00000
,
0xFD500000
,
DEVICE_MEM
},
//gmac
{
0xFE000000
,
0xF
EA
00000
,
0xFE000000
,
DEVICE_MEM
},
//peripheral
{
0xFE000000
,
0xF
F0
00000
,
0xFE000000
,
DEVICE_MEM
},
//peripheral
{
0xFF800000
,
0xFFA00000
,
0xFF800000
,
DEVICE_MEM
}
//gic
};
...
...
bsp/raspberry-pi/raspi4-32/driver/drv_dma.c
0 → 100644
浏览文件 @
091089f1
/*
* Copyright (c) 2006-2020, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-12-02 bigmagic first version
*/
#include "drv_dma.h"
#include "raspi4.h"
volatile
unsigned
int
__attribute__
((
aligned
(
256
)))
dma_disc
[
32
];
//https://www.raspberrypi.org/forums/viewtopic.php?f=72&t=10276
static
struct
rt_semaphore
dma_sem
;
//DMA 0 1 2 3 4 5 6
typedef
struct
_dma_ctrl_block
{
unsigned
int
TI
;
// Transfer information
unsigned
int
SOURCE_AD
;
// source address
unsigned
int
DEST_AD
;
// destination address
unsigned
int
TXFR_LEN
;
// transfer length
unsigned
int
STRIDE
;
// 2D mode stride
struct
_dma_ctrl_block
*
NEXTCONBK
;
// Next control block address
unsigned
int
DEBUG
;
unsigned
int
reserved1
;
}
dma_ctrl_block_t
;
//DMA 7 8 9 10
typedef
struct
_dma_lite_ctrl_block
{
unsigned
int
TI
;
// Transfer information
unsigned
int
SOURCE_AD
;
// source address
unsigned
int
DEST_AD
;
// destination address
unsigned
int
TXFR_LEN
;
// transfer length
struct
_dma_lite_ctrl_block
*
NEXTCONBK
;
// Next control block address
unsigned
int
DEBUG
;
unsigned
int
reserved1
;
unsigned
int
reserved2
;
}
dma_lite_ctrl_block_t
;
//DMA 11 12 13 14 15
typedef
struct
_dma4_ctrl_block
{
unsigned
int
TI
;
// Transfer information
unsigned
int
SOURCE_AD0
;
// source address0
unsigned
int
SOURCE_AD1
;
// source address1
unsigned
int
DEST_AD0
;
// destination address0
unsigned
int
DEST_AD1
;
// destination address1
unsigned
int
TXFR_LEN
;
// transfer length
unsigned
int
STRIDE
;
// 2D mode stride
struct
_dma4_ctrl_block
*
NEXTCONBK
;
// Next control block address
}
dma4_ctrl_block_t
;
static
dma_lite_ctrl_block_t
*
ctr_blocks
;
static
void
dma_irq
(
int
irq
,
void
*
param
)
{
if
(
DMA_INT_STATUS_REG
&
DMA_INT7
)
{
DMA_CS
(
7
)
=
DMA_CS_INT
;
rt_sem_release
(
&
dma_sem
);
}
}
//dma 7 8 9 10:XLENGTH
rt_err_t
dma_memcpy
(
void
*
src
,
void
*
dst
,
unsigned
int
size
,
unsigned
int
dch
,
unsigned
int
timeout
)
{
rt_hw_cpu_dcache_ops
(
RT_HW_CACHE_INVALIDATE
,
dst
,
size
);
/* Stop DMA, if it was already started */
DMA_CS
(
dch
)
=
DMA_CS_RESET
;
/* Clear DMA status flags */
DMA_CS
(
dch
)
=
DMA_CS_INT
|
DMA_CS_END
;
/* Interrupted flag & Transmission ended flag*/
//cb info
ctr_blocks
->
TI
=
DMA_TI_SRC_INC
|
DMA_TI_DEST_INC
|
DMA_TI_INTEN
;
ctr_blocks
->
SOURCE_AD
=
(
unsigned
int
)
src
;
ctr_blocks
->
DEST_AD
=
(
unsigned
int
)
dst
;
ctr_blocks
->
TXFR_LEN
=
size
;
ctr_blocks
->
NEXTCONBK
=
0
;
ctr_blocks
->
reserved1
=
0
;
ctr_blocks
->
reserved2
=
0
;
rt_hw_cpu_dcache_ops
(
RT_HW_CACHE_INVALIDATE
,
ctr_blocks
,
sizeof
(
dma_lite_ctrl_block_t
)
*
8
);
DMA_CONBLK_AD
(
dch
)
=
(
rt_uint32_t
)
ctr_blocks
;
DMA_CS
(
dch
)
=
DMA_CS_INT
|
DMA_CS_END
|
DMA_CS_ACTIVE
;
if
(
rt_sem_take
(
&
dma_sem
,
timeout
)
!=
RT_EOK
)
{
rt_kprintf
(
"dma transfer timeout!
\n
"
);
return
RT_ERROR
;
}
return
RT_EOK
;
}
void
dma_init
(
rt_uint8_t
dch
)
{
rt_sem_init
(
&
dma_sem
,
"dma_sem"
,
0
,
RT_IPC_FLAG_FIFO
);
ctr_blocks
=
(
dma_lite_ctrl_block_t
*
)
&
dma_disc
[
0
];
//rt_malloc(sizeof(DMA_Lite_Control_Block));
//Make sure DMA channel is enabled by
//writing the corresponding bit in DMA_ENABLE in the DMA register to 1
DMA_ENABLE_REG
=
(
1
<<
dch
);
rt_hw_interrupt_install
(
IRQ_DMA7_DMA8
,
dma_irq
,
RT_NULL
,
"dma_irq"
);
rt_hw_interrupt_umask
(
IRQ_DMA7_DMA8
);
}
bsp/raspberry-pi/raspi4-32/driver/drv_dma.h
0 → 100644
浏览文件 @
091089f1
/*
* Copyright (c) 2006-2020, 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
(
dch
);
rt_err_t
dma_memcpy
(
void
*
src
,
void
*
dst
,
unsigned
int
size
,
unsigned
int
dch
,
unsigned
int
timeout
);
#endif
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录