添加rtthread相关代码

riscv/rtthread/components/drivers/touch/SConscript

@@ -0,0 +1,11 @@
+# SConscript for touch framework
+
+from building import *
+
+cwd = GetCurrentDir()
+src = ['touch.c']
+CPPPATH = [cwd, cwd + '/../include']
+
+group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_TOUCH', 'RT_USING_DEVICE'], CPPPATH = CPPPATH)
+
+Return('group')

riscv/rtthread/components/drivers/touch/touch.c

@@ -0,0 +1,253 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-05-20     tyustli      the first version
+ */
+
+#include <rtdevice.h>
+#include <string.h>
+
+#define DBG_TAG  "touch"
+#define DBG_LVL DBG_INFO
+#include <rtdbg.h>
+
+/* ISR for touch interrupt */
+void rt_hw_touch_isr(rt_touch_t touch)
+{
+    RT_ASSERT(touch);
+    if (touch->parent.rx_indicate == RT_NULL)
+    {
+        return;
+    }
+
+    if (touch->irq_handle != RT_NULL)
+    {
+        touch->irq_handle(touch);
+    }
+
+    touch->parent.rx_indicate(&touch->parent, 1);
+}
+
+#ifdef RT_TOUCH_PIN_IRQ
+static void touch_irq_callback(void *param)
+{
+    rt_hw_touch_isr((rt_touch_t)param);
+}
+#endif
+
+/* touch interrupt initialization function */
+static rt_err_t rt_touch_irq_init(rt_touch_t touch)
+{
+#ifdef RT_TOUCH_PIN_IRQ
+    if (touch->config.irq_pin.pin == PIN_IRQ_PIN_NONE)
+    {
+        return -RT_EINVAL;
+    }
+
+    rt_pin_mode(touch->config.irq_pin.pin, touch->config.irq_pin.mode);
+
+    if (touch->config.irq_pin.mode == PIN_MODE_INPUT_PULLDOWN)
+    {
+        rt_pin_attach_irq(touch->config.irq_pin.pin, PIN_IRQ_MODE_RISING, touch_irq_callback, (void *)touch);
+    }
+    else if (touch->config.irq_pin.mode == PIN_MODE_INPUT_PULLUP)
+    {
+        rt_pin_attach_irq(touch->config.irq_pin.pin, PIN_IRQ_MODE_FALLING, touch_irq_callback, (void *)touch);
+    }
+    else if (touch->config.irq_pin.mode == PIN_MODE_INPUT)
+    {
+        rt_pin_attach_irq(touch->config.irq_pin.pin, PIN_IRQ_MODE_RISING_FALLING, touch_irq_callback, (void *)touch);
+    }
+
+    rt_pin_irq_enable(touch->config.irq_pin.pin, PIN_IRQ_ENABLE);
+#endif
+
+    return RT_EOK;
+}
+
+/* touch interrupt enable */
+static void rt_touch_irq_enable(rt_touch_t touch)
+{
+#ifdef RT_TOUCH_PIN_IRQ
+    if (touch->config.irq_pin.pin != PIN_IRQ_PIN_NONE)
+    {
+        rt_pin_irq_enable(touch->config.irq_pin.pin, RT_TRUE);
+    }
+#else
+    touch->ops->touch_control(touch, RT_TOUCH_CTRL_ENABLE_INT, RT_NULL);
+#endif
+}
+
+/* touch interrupt disable */
+static void rt_touch_irq_disable(rt_touch_t touch)
+{
+#ifdef RT_TOUCH_PIN_IRQ
+    if (touch->config.irq_pin.pin != PIN_IRQ_PIN_NONE)
+    {
+        rt_pin_irq_enable(touch->config.irq_pin.pin, RT_FALSE);
+    }
+#else
+    touch->ops->touch_control(touch, RT_TOUCH_CTRL_DISABLE_INT, RT_NULL);
+#endif
+}
+
+static rt_err_t rt_touch_open(rt_device_t dev, rt_uint16_t oflag)
+{
+    rt_touch_t touch;
+    RT_ASSERT(dev != RT_NULL);
+    touch = (rt_touch_t)dev;
+
+    if (oflag & RT_DEVICE_FLAG_INT_RX && dev->flag & RT_DEVICE_FLAG_INT_RX)
+    {
+        /* Initialization touch interrupt */
+        rt_touch_irq_init(touch);
+    }
+
+    return RT_EOK;
+}
+
+static rt_err_t rt_touch_close(rt_device_t dev)
+{
+    rt_touch_t touch;
+    RT_ASSERT(dev != RT_NULL);
+    touch = (rt_touch_t)dev;
+
+    /* touch disable interrupt */
+    rt_touch_irq_disable(touch);
+
+    return RT_EOK;
+}
+
+static rt_ssize_t rt_touch_read(rt_device_t dev, rt_off_t pos, void *buf, rt_size_t len)
+{
+    rt_touch_t touch;
+    rt_size_t result = 0;
+    RT_ASSERT(dev != RT_NULL);
+    touch = (rt_touch_t)dev;
+
+    if (buf == NULL || len == 0)
+    {
+        return 0;
+    }
+
+    result = touch->ops->touch_readpoint(touch, buf, len);
+
+    return result;
+}
+
+static rt_err_t rt_touch_control(rt_device_t dev, int cmd, void *args)
+{
+    rt_touch_t touch;
+    rt_err_t result = RT_EOK;
+    RT_ASSERT(dev != RT_NULL);
+    touch = (rt_touch_t)dev;
+
+    switch (cmd)
+    {
+    case RT_TOUCH_CTRL_SET_MODE:
+        result = touch->ops->touch_control(touch, RT_TOUCH_CTRL_SET_MODE, args);
+
+        if (result == RT_EOK)
+        {
+            rt_uint16_t mode;
+            mode  = *(rt_uint16_t*)args;
+            if (mode == RT_DEVICE_FLAG_INT_RX)
+            {
+                rt_touch_irq_enable(touch);  /* enable interrupt */
+            }
+        }
+
+        break;
+    case RT_TOUCH_CTRL_SET_X_RANGE:
+        result = touch->ops->touch_control(touch, RT_TOUCH_CTRL_SET_X_RANGE, args);
+
+        if (result == RT_EOK)
+        {
+            touch->info.range_x = *(rt_int32_t *)args;
+            LOG_D("set x coordinate range :%d\n", touch->info.range_x);
+        }
+
+        break;
+    case RT_TOUCH_CTRL_SET_Y_RANGE:
+        result = touch->ops->touch_control(touch, RT_TOUCH_CTRL_SET_Y_RANGE, args);
+
+        if (result == RT_EOK)
+        {
+            touch->info.range_y = *(rt_uint32_t *)args;
+            LOG_D("set y coordinate range :%d \n", touch->info.range_x);
+        }
+
+        break;
+    case RT_TOUCH_CTRL_DISABLE_INT:
+        rt_touch_irq_disable(touch);
+        break;
+    case RT_TOUCH_CTRL_ENABLE_INT:
+        rt_touch_irq_enable(touch);
+        break;
+
+    case RT_TOUCH_CTRL_GET_ID:
+    case RT_TOUCH_CTRL_GET_INFO:
+    default:
+        return touch->ops->touch_control(touch, cmd, args);
+    }
+
+    return result;
+}
+
+#ifdef RT_USING_DEVICE_OPS
+const static struct rt_device_ops rt_touch_ops =
+{
+    RT_NULL,
+    rt_touch_open,
+    rt_touch_close,
+    rt_touch_read,
+    RT_NULL,
+    rt_touch_control
+};
+#endif
+
+/*
+ * touch register
+ */
+int rt_hw_touch_register(rt_touch_t touch,
+                         const char              *name,
+                         rt_uint32_t              flag,
+                         void                    *data)
+{
+    rt_err_t result;
+    rt_device_t device;
+    RT_ASSERT(touch != RT_NULL);
+
+    device = &touch->parent;
+
+#ifdef RT_USING_DEVICE_OPS
+    device->ops         = &rt_touch_ops;
+#else
+    device->init        = RT_NULL;
+    device->open        = rt_touch_open;
+    device->close       = rt_touch_close;
+    device->read        = rt_touch_read;
+    device->write       = RT_NULL;
+    device->control     = rt_touch_control;
+#endif
+    device->type        = RT_Device_Class_Touch;
+    device->rx_indicate = RT_NULL;
+    device->tx_complete = RT_NULL;
+    device->user_data   = data;
+
+    result = rt_device_register(device, name, flag | RT_DEVICE_FLAG_STANDALONE);
+
+    if (result != RT_EOK)
+    {
+        LOG_E("rt_touch register err code: %d", result);
+        return result;
+    }
+
+    LOG_I("rt_touch init success");
+
+    return RT_EOK;
+}