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BernardXiongBernardXiong
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Merge pull request #4058 from thread-liu/liukang
[add] dcmi and ov2640 driver.
2 parents 082dda7 + 2fa563f commit cc9374f

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6 files changed

+1841
-17
lines changed

6 files changed

+1841
-17
lines changed

‎bsp/stm32/stm32h743-atk-apollo/board/Kconfig‎

Lines changed: 51 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -41,6 +41,13 @@ menu "Onboard Peripheral Drivers"
4141
select RT_USING_DFS_ELMFAT
4242
default n
4343

44+
config BSP_USING_OV2640
45+
bool "Enable camera (ov2640)"
46+
select BSP_USING_DCMI
47+
select BSP_USING_I2C
48+
select BSP_USING_I2C2
49+
default n
50+
4451
endmenu
4552

4653
menu "On-chip Peripheral Drivers"
@@ -98,28 +105,55 @@ menu "On-chip Peripheral Drivers"
98105
select RT_USING_SPI
99106
default n
100107

101-
menuconfig BSP_USING_I2C1
102-
bool "Enable I2C1 BUS (software simulation)"
103-
default n
104-
select RT_USING_I2C
105-
select RT_USING_I2C_BITOPS
106-
select RT_USING_PIN
107-
if BSP_USING_I2C1
108-
comment "Notice: PH4 --> 116; PH5 --> 117"
109-
config BSP_I2C1_SCL_PIN
110-
int "i2c1 scl pin number"
111-
range 1 176
112-
default 116
113-
config BSP_I2C1_SDA_PIN
114-
int "I2C1 sda pin number"
115-
range 1 176
116-
default 117
117-
endif
108+
menuconfig BSP_USING_I2C
109+
bool "Enable I2C BUS (software simulation)"
110+
select RT_USING_I2C
111+
select RT_USING_I2C_BITOPS
112+
select RT_USING_PIN
113+
default n
114+
if BSP_USING_I2C
115+
menuconfig BSP_USING_I2C1
116+
bool "Enable I2C1 BUS (software simulation)"
117+
default n
118+
if BSP_USING_I2C1
119+
comment "Notice: PH4 --> 116; PH5 --> 117"
120+
config BSP_I2C1_SCL_PIN
121+
int "i2c1 scl pin number"
122+
range 1 176
123+
default 116
124+
config BSP_I2C1_SDA_PIN
125+
int "I2C1 sda pin number"
126+
range 1 176
127+
default 117
128+
menuconfig BSP_USING_I2C2
129+
bool "Enable I2C2 BUS (software simulation)"
130+
default n
131+
endif
132+
133+
menuconfig BSP_USING_I2C2
134+
bool "Enable I2C2 BUS (software simulation)"
135+
default n
136+
if BSP_USING_I2C2
137+
comment "Notice: PH13 --> 125; PH15 --> 127"
138+
config BSP_I2C2_SCL_PIN
139+
int "i2c2 scl pin number"
140+
range 1 176
141+
default 127
142+
config BSP_I2C2_SDA_PIN
143+
int "I2C2 sda pin number"
144+
range 1 176
145+
default 125
146+
endif
147+
endif
118148

119149
config BSP_USING_ON_CHIP_FLASH
120150
bool "Enable on-chip FLASH"
121151
default n
122152

153+
config BSP_USING_DCMI
154+
bool "Enable DCMI"
155+
default n
156+
123157
menuconfig BSP_USING_ONCHIP_RTC
124158
bool "Enable RTC"
125159
select RT_USING_RTC

‎bsp/stm32/stm32h743-atk-apollo/board/SConscript‎

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -17,6 +17,10 @@ if GetDepend(['BSP_USING_QSPI_FLASH']):
1717
src += Glob('ports/drv_qspi_flash.c')
1818
if GetDepend(['BSP_USING_SDMMC']):
1919
src += Glob('ports/drv_sdio.c')
20+
if GetDepend(['BSP_USING_DCMI']):
21+
src += Glob('ports/drv_dcmi.c')
22+
if GetDepend(['BSP_USING_OV2640']):
23+
src += Glob('ports/drv_ov2640.c')
2024

2125
path = [cwd]
2226
path += [cwd + '/CubeMX_Config/Inc']

‎bsp/stm32/stm32h743-atk-apollo/board/ports/drv_dcmi.c‎

Lines changed: 223 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,223 @@
1+
/*
2+
* Copyright (c) 2006-2022, RT-Thread Development Team
3+
*
4+
* SPDX-License-Identifier: Apache-2.0
5+
*
6+
* Change Logs:
7+
* Date Author Notes
8+
* 2020-07-27 thread-liu the first version
9+
*/
10+
11+
#include "board.h"
12+
13+
#if defined(BSP_USING_DCMI)
14+
15+
#include <drv_dcmi.h>
16+
17+
#define DRV_DEBUG
18+
#define LOG_TAG "drv.dcmi"
19+
#include <drv_log.h>
20+
21+
struct stm32_dcmi
22+
{
23+
DCMI_HandleTypeDef DCMI_Handle;
24+
struct rt_dcmi_device dev;
25+
};
26+
static struct stm32_dcmi rt_dcmi = {0};
27+
28+
DMA_HandleTypeDef hdma_dcmi;
29+
30+
static void rt_hw_dcmi_dma_init(void)
31+
{
32+
__HAL_RCC_DMA2_CLK_ENABLE();
33+
34+
hdma_dcmi.Instance = DMA2_Stream1;
35+
hdma_dcmi.Init.Request = DMA_REQUEST_DCMI;
36+
hdma_dcmi.Init.Direction = DMA_PERIPH_TO_MEMORY;
37+
hdma_dcmi.Init.PeriphInc = DMA_PINC_DISABLE;
38+
hdma_dcmi.Init.MemInc = DMA_MINC_ENABLE;
39+
hdma_dcmi.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
40+
hdma_dcmi.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
41+
hdma_dcmi.Init.Mode = DMA_CIRCULAR;
42+
hdma_dcmi.Init.Priority = DMA_PRIORITY_HIGH;
43+
hdma_dcmi.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
44+
hdma_dcmi.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
45+
hdma_dcmi.Init.MemBurst = DMA_MBURST_SINGLE;
46+
hdma_dcmi.Init.PeriphBurst = DMA_PBURST_SINGLE;
47+
48+
HAL_DMA_DeInit(&hdma_dcmi);
49+
HAL_DMA_Init(&hdma_dcmi);
50+
51+
__HAL_LINKDMA(&rt_dcmi.DCMI_Handle, DMA_Handle, hdma_dcmi);
52+
53+
HAL_NVIC_SetPriority(DMA2_Stream1_IRQn, 0x00, 0x00);
54+
HAL_NVIC_EnableIRQ(DMA2_Stream1_IRQn);;
55+
}
56+
57+
void rt_hw_dcmi_dma_config(rt_uint32_t dst_addr1, rt_uint32_t dst_addr2, rt_uint32_t len)
58+
{
59+
__HAL_UNLOCK(&hdma_dcmi);
60+
61+
HAL_DMAEx_MultiBufferStart(&hdma_dcmi, (rt_uint32_t)&DCMI->DR, dst_addr1, dst_addr2, len);
62+
63+
__HAL_DMA_ENABLE_IT(&hdma_dcmi, DMA_IT_TC);
64+
}
65+
66+
static rt_err_t rt_hw_dcmi_init(DCMI_HandleTypeDef *device)
67+
{
68+
RT_ASSERT(device != RT_NULL);
69+
70+
device->Instance = DCMI;
71+
device->Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
72+
device->Init.PCKPolarity = DCMI_PCKPOLARITY_RISING;
73+
device->Init.VSPolarity = DCMI_VSPOLARITY_LOW;
74+
device->Init.HSPolarity = DCMI_HSPOLARITY_LOW;
75+
device->Init.CaptureRate = DCMI_CR_ALL_FRAME;
76+
device->Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
77+
device->Init.JPEGMode = DCMI_JPEG_ENABLE;
78+
device->Init.ByteSelectMode = DCMI_BSM_ALL;
79+
device->Init.ByteSelectStart = DCMI_OEBS_ODD;
80+
device->Init.LineSelectMode = DCMI_LSM_ALL;
81+
device->Init.LineSelectStart = DCMI_OELS_ODD;
82+
83+
if (HAL_DCMI_Init(device) != HAL_OK)
84+
{
85+
LOG_E("dcmi init error!");
86+
return RT_ERROR;
87+
}
88+
89+
DCMI->IER = 0x0;
90+
91+
__HAL_DCMI_ENABLE_IT(device, DCMI_IT_FRAME);
92+
__HAL_DCMI_ENABLE(device);
93+
94+
return RT_EOK;
95+
}
96+
97+
void DCMI_IRQHandler(void)
98+
{
99+
/* enter interrupt */
100+
rt_interrupt_enter();
101+
102+
HAL_DCMI_IRQHandler(&rt_dcmi.DCMI_Handle);
103+
104+
/* leave interrupt */
105+
rt_interrupt_leave();
106+
}
107+
108+
void DCMI_Start(void)
109+
{
110+
__HAL_DMA_ENABLE(&hdma_dcmi);
111+
DCMI->CR |= DCMI_CR_CAPTURE;
112+
}
113+
114+
void DCMI_Stop(void)
115+
{
116+
DCMI->CR &= ~(DCMI_CR_CAPTURE);
117+
while (DCMI->CR & 0x01);
118+
__HAL_DMA_DISABLE(&hdma_dcmi);
119+
}
120+
121+
/* Capture a frame of the image */
122+
void HAL_DCMI_FrameEventCallback(DCMI_HandleTypeDef *hdcmi)
123+
{
124+
extern void camera_frame_data_process(void);
125+
/* enter interrupt */
126+
rt_interrupt_enter();
127+
/* move frame data to buffer */
128+
camera_frame_data_process();
129+
130+
__HAL_DCMI_ENABLE_IT(&rt_dcmi.DCMI_Handle, DCMI_IT_FRAME);
131+
132+
/* leave interrupt */
133+
rt_interrupt_leave();
134+
}
135+
136+
void DMA2_Stream1_IRQHandler(void)
137+
{
138+
extern void camera_dma_data_process(void);
139+
/* enter interrupt */
140+
rt_interrupt_enter();
141+
142+
if (__HAL_DMA_GET_FLAG(&hdma_dcmi, DMA_FLAG_TCIF1_5) != RESET)
143+
{
144+
__HAL_DMA_CLEAR_FLAG(&hdma_dcmi, DMA_FLAG_TCIF1_5);
145+
/* move dma data to buffer */
146+
camera_dma_data_process();
147+
}
148+
149+
/* leave interrupt */
150+
rt_interrupt_leave();
151+
}
152+
153+
static rt_err_t rt_dcmi_init(rt_device_t dev)
154+
{
155+
RT_ASSERT(dev != RT_NULL);
156+
rt_err_t result = RT_EOK;
157+
158+
result = rt_hw_dcmi_init(&rt_dcmi.DCMI_Handle);
159+
if (result != RT_EOK)
160+
{
161+
return result;
162+
}
163+
164+
rt_hw_dcmi_dma_init();
165+
166+
return result;
167+
}
168+
169+
static rt_err_t rt_dcmi_open(rt_device_t dev, rt_uint16_t oflag)
170+
{
171+
RT_ASSERT(dev != RT_NULL);
172+
173+
return RT_EOK;
174+
}
175+
176+
static rt_err_t rt_dcmi_close(rt_device_t dev)
177+
{
178+
RT_ASSERT(dev != RT_NULL);
179+
180+
return RT_EOK;
181+
}
182+
183+
static rt_err_t rt_dcmi_control(rt_device_t dev, int cmd, void *args)
184+
{
185+
RT_ASSERT(dev != RT_NULL);
186+
187+
return RT_EOK;
188+
}
189+
190+
static rt_size_t rt_dcmi_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
191+
{
192+
RT_ASSERT(dev != RT_NULL);
193+
194+
return RT_EOK;
195+
}
196+
197+
static rt_size_t rt_dcmi_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
198+
{
199+
RT_ASSERT(dev != RT_NULL);
200+
201+
return RT_EOK;
202+
}
203+
204+
int dcmi_init(void)
205+
{
206+
rt_dcmi.dev.parent.type = RT_Device_Class_Miscellaneous;
207+
rt_dcmi.dev.parent.init = rt_dcmi_init;
208+
rt_dcmi.dev.parent.open = rt_dcmi_open;
209+
rt_dcmi.dev.parent.close = rt_dcmi_close;
210+
rt_dcmi.dev.parent.read = rt_dcmi_read;
211+
rt_dcmi.dev.parent.write = rt_dcmi_write;
212+
rt_dcmi.dev.parent.control = rt_dcmi_control;
213+
rt_dcmi.dev.parent.user_data = RT_NULL;
214+
215+
rt_device_register(&rt_dcmi.dev.parent, "dcmi", RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
216+
217+
LOG_I("dcmi init success!");
218+
219+
return RT_EOK;
220+
}
221+
INIT_BOARD_EXPORT(dcmi_init);
222+
223+
#endif

‎bsp/stm32/stm32h743-atk-apollo/board/ports/drv_dcmi.h‎

Lines changed: 34 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,34 @@
1+
/*
2+
* Copyright (c) 2006-2022, RT-Thread Development Team
3+
*
4+
* SPDX-License-Identifier: Apache-2.0
5+
*
6+
* Change Logs:
7+
* Date Author Notes
8+
* 2020-07-27 thread-liu the first version
9+
*/
10+
11+
#ifndef __DRV_DCMI_H__
12+
#define __DRV_DCMI_H__
13+
14+
#include "board.h"
15+
16+
#ifdef __cplusplus
17+
extern "C" {
18+
#endif
19+
20+
struct rt_dcmi_device
21+
{
22+
struct rt_device parent;
23+
};
24+
25+
extern DMA_HandleTypeDef hdma_dcmi;
26+
extern void rt_hw_dcmi_dma_config(rt_uint32_t dst_addr1, rt_uint32_t dst_addr2, rt_uint32_t len);
27+
extern void DCMI_Start(void);
28+
extern void DCMI_Stop(void);
29+
30+
#ifdef __cplusplus
31+
}
32+
#endif
33+
34+
#endif

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