add camera driver and examples for edu-riscv64

2022-11-18 20:20:34 +08:00
parent f22fbc3c94
commit 06ed03337a
36 changed files with 7038 additions and 351 deletions
@@ -0,0 +1,200 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2006-03-13     bernard      first version
+ * 2012-05-15     lgnq         modified according bernard's implementation.
+ * 2012-05-28     bernard      code cleanup
+ * 2012-11-23     bernard      fix compiler warning.
+ * 2013-02-20     bernard      use RT_CAMERA_RB_BUFSZ to define
+ *                             the size of ring buffer.
+ * 2014-07-10     bernard      rewrite camera framework
+ * 2014-12-31     bernard      use open_flag for poll_tx stream mode.
+ * 2015-05-19     Quintin      fix DMA tx mod tx_dma->activated flag !=RT_FALSE BUG
+ *                             in open function.
+ * 2015-11-10     bernard      fix the poll rx issue when there is no data.
+ * 2016-05-10     armink       add fifo mode to DMA rx when camera->config.bufsz != 0.
+ * 2017-01-19     aubr.cool    prevent change camera rx bufsz when camera is opened.
+ * 2017-11-07     JasonJia     fix data bits error issue when using tcsetattr.
+ * 2017-11-15     JasonJia     fix poll rx issue when data is full.
+ *                             add TCFLSH and FIONREAD support.
+ * 2018-12-08     Ernest Chen  add DMA choice
+ * 2020-09-14     WillianChan  add a line feed to the carriage return character
+ *                             when using interrupt tx
+ */
+
+/**
+* @file dev_camera.c
+* @brief register camera dev function using bus driver framework
+* @version 1.0 
+* @author AIIT XUOS Lab
+* @date 2021-04-24
+*/
+
+/*************************************************
+File name: dev_camera.c
+Description: support camera dev INT and DMA configure、transfer data
+Others: take RT-Thread v4.0.2/components/driver/camera/camera.c for references
+                https://github.com/RT-Thread/rt-thread/tree/v4.0.2
+History: 
+1. Date: 2021-04-24
+Author: AIIT XUOS Lab
+Modification: 
+1. support camera dev register, configure, write and read
+2. add bus driver framework support, include INT and DMA mode
+*************************************************/
+
+#include <bus_camera.h>
+#include <dev_camera.h>
+
+static DoubleLinklistType cameradev_linklist;
+
+static uint32 CameraDevOpen(void *dev)
+{
+    NULL_PARAM_CHECK(dev);
+
+    x_err_t ret = EOK;
+    struct CameraHardwareDevice *camera_dev = (struct CameraHardwareDevice *)dev;
+
+    ret = camera_dev->camera_dev_done->dev_open(dev);
+
+    return EOK;
+}
+
+static uint32 CameraDevClose(void *dev)
+{
+    NULL_PARAM_CHECK(dev);
+
+    x_err_t ret = EOK;
+    struct CameraHardwareDevice *camera_dev = (struct CameraHardwareDevice *)dev;
+
+    ret = camera_dev->camera_dev_done->dev_close(dev);
+    return EOK;
+}
+
+static uint32 CameraDevWrite(void *dev, struct BusBlockWriteParam *write_param)
+{
+    NULL_PARAM_CHECK(dev);
+    NULL_PARAM_CHECK(write_param);
+
+    x_err_t ret = EOK;
+
+    struct CameraHardwareDevice *camera_dev = (struct CameraHardwareDevice *)dev;
+    ret = camera_dev->camera_dev_done->dev_write(dev,write_param);
+
+    return ret;
+}
+
+static uint32 CameraDevRead(void *dev, struct BusBlockReadParam *read_param)
+{
+    NULL_PARAM_CHECK(dev);
+    NULL_PARAM_CHECK(read_param);
+
+    x_err_t ret = EOK;
+
+    struct CameraHardwareDevice *camera_dev = (struct CameraHardwareDevice *)dev;
+    ret = camera_dev->camera_dev_done->dev_read(dev,read_param);
+
+    return EOK;
+}
+
+
+static const struct HalDevDone dev_done =
+{
+    .open = CameraDevOpen,
+    .close = CameraDevClose,
+    .write = CameraDevWrite,
+    .read = CameraDevRead,
+};
+
+/*Create the camera device linklist*/
+static void CameraDeviceLinkInit()
+{
+    InitDoubleLinkList(&cameradev_linklist);
+}
+
+HardwareDevType CameraDeviceFind(const char *dev_name, enum DevType dev_type)
+{
+    NULL_PARAM_CHECK(dev_name);
+    
+    struct HardwareDev *device = NONE;
+
+    DoubleLinklistType *node = NONE;
+    DoubleLinklistType *head = &cameradev_linklist;
+
+    for (node = head->node_next; node != head; node = node->node_next) {
+        device = SYS_DOUBLE_LINKLIST_ENTRY(node, struct HardwareDev, dev_link);
+        if ((!strcmp(device->dev_name, dev_name)) && (dev_type == device->dev_type)) {
+            return device;
+        }
+    }
+
+    KPrintf("CameraDeviceFind cannot find the %s device.return NULL\n", dev_name);
+    return NONE;
+}
+
+int CameraDeviceRegister(struct CameraHardwareDevice *camera_device, void *camera_param, const char *device_name)
+{
+    NULL_PARAM_CHECK(camera_device);
+    NULL_PARAM_CHECK(device_name);
+
+    x_err_t ret = EOK;    
+    static x_bool dev_link_flag = RET_FALSE;
+
+    if (!dev_link_flag) {
+        CameraDeviceLinkInit();
+        dev_link_flag = RET_TRUE;
+    }
+
+    if (DEV_INSTALL != camera_device->haldev.dev_state) {
+        strncpy(camera_device->haldev.dev_name, device_name, NAME_NUM_MAX);
+        camera_device->haldev.dev_type = TYPE_CAMERA_DEV;
+        camera_device->haldev.dev_state = DEV_INSTALL;
+        camera_device->haldev.dev_done = (struct HalDevDone *)&dev_done;
+
+
+        DoubleLinkListInsertNodeAfter(&cameradev_linklist, &(camera_device->haldev.dev_link));
+    } else {
+        KPrintf("CameraDeviceRegister device has been register state%u\n", camera_device->haldev.dev_state);        
+    }
+
+    return ret;
+}
+
+int CameraDeviceAttachToBus(const char *dev_name, const char *bus_name)
+{
+    NULL_PARAM_CHECK(dev_name);
+    NULL_PARAM_CHECK(bus_name);
+    
+    x_err_t ret = EOK;
+
+    struct Bus *bus;
+    struct HardwareDev *device;
+
+    bus = BusFind(bus_name);
+    if (NONE == bus) {
+        KPrintf("CameraDeviceAttachToBus find camera bus error!name %s\n", bus_name);
+        return ERROR;
+    }
+    
+    if (TYPE_CAMERA_BUS == bus->bus_type) {
+        device = CameraDeviceFind(dev_name, TYPE_CAMERA_DEV);
+        if (NONE == device) {
+            KPrintf("CameraDeviceAttachToBus find camera device error!name %s\n", dev_name);
+            return ERROR;
+        }
+
+        if (TYPE_CAMERA_DEV == device->dev_type) {
+            ret = DeviceRegisterToBus(bus, device);
+            if (EOK != ret) {
+                KPrintf("CameraDeviceAttachToBus DeviceRegisterToBus error %u\n", ret);
+                return ERROR;
+            }
+        }
+    }
+
+    return EOK;
+}