add hwtimer device (#6230)

Author: qipingqiu

bsp/cypress/libraries/HAL_Drivers/SConscript

@@ -46,6 +46,9 @@ if GetDepend('BSP_USING_ON_CHIP_FLASH'):
 
 if GetDepend(['RT_USING_WDT']):
     src += ['drv_wdt.c']
+    
+if GetDepend(['BSP_USING_TIM']):
+    src += ['drv_hwtimer.c']    
 
 path =  [cwd]
 path += [cwd + '/config']

bsp/cypress/libraries/HAL_Drivers/drv_hwtimer.c

@@ -0,0 +1,344 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author                   Notes
+ * 2022-07-29     rtthread qiu       first version
+ */
+#include "drv_common.h"
+#include "drv_hwtimer.h"
+
+#include <board.h>
+#ifdef BSP_USING_TIM
+
+//#define DRV_DEBUG
+#define LOG_TAG "drv.hwtimer"
+#include <drv_log.h>
+static void isr_timer(void *callback_arg, cyhal_timer_event_t event);
+
+#ifdef RT_USING_HWTIMER
+enum
+{
+#ifdef BSP_USING_TIM1
+    TIM1_INDEX,
+#endif
+#ifdef BSP_USING_TIM2
+    TIM2_INDEX,
+#endif
+};
+
+struct cyp_hwtimer
+{
+    rt_hwtimer_t time_device;
+    cyhal_timer_t tim_handle;
+    IRQn_Type tim_irqn;
+    char *name;
+};
+
+static struct cyp_hwtimer cyp_hwtimer_obj[] =
+{
+#ifdef BSP_USING_TIM1
+    TIM1_CONFIG,
+#endif
+#ifdef BSP_USING_TIM2
+    TIM2_CONFIG,
+#endif
+};
+
+static void timer_init(rt_hwtimer_t *timer, rt_uint32_t state)
+{
+    RT_ASSERT(timer != RT_NULL);
+
+    cy_rslt_t result = RT_EOK;
+
+    cyhal_timer_t *tim = RT_NULL;
+
+    tim = (cyhal_timer_t *)timer->parent.user_data;
+
+    const cyhal_timer_cfg_t init_timer_cfg =
+        {
+            .compare_value = 0,              /* Timer compare value, not used */
+            .period = 9999,                  /* Defines the timer period */
+            .direction = CYHAL_TIMER_DIR_UP, /* Timer counts up */
+            .is_compare = false,             /* Don't use compare mode */
+            .is_continuous = true,           /* Run timer indefinitely */
+            .value = 0                       /* Initial value of counter */
+        };
+
+    if (state)
+    {
+        /* Initialize the timer object. Does not use input pin ('pin' is NC) and
+         * does not use a pre-configured clock source ('clk' is NULL). */
+        result = cyhal_timer_init(tim, NC, NULL);
+
+        if (result != CY_RSLT_SUCCESS)
+        {
+            LOG_E("timer init error \r\n");
+            return;
+        }
+        else
+        {
+            /* Configure timer period and operation mode such as count direction,
+                duration */
+            cyhal_timer_configure(tim, &init_timer_cfg);
+
+            /* Set the frequency of timer's clock source */
+            cyhal_timer_set_frequency(tim, 10000);
+
+            cyhal_timer_start(tim);
+        }
+    }
+    else
+    {
+        cyhal_timer_free(tim);
+        LOG_E("free time \r\n");
+    }
+}
+
+static rt_err_t timer_start(rt_hwtimer_t *timer, rt_uint32_t t, rt_hwtimer_mode_t opmode)
+{
+    RT_ASSERT(timer != RT_NULL);
+    RT_ASSERT(opmode != RT_NULL);
+
+    cy_rslt_t result = RT_EOK;
+
+    cyhal_timer_t *tim = RT_NULL;
+
+    tim = (cyhal_timer_t *)timer->parent.user_data;
+
+    const cyhal_timer_cfg_t init_timer_cfg =
+        {
+            .compare_value = 0,              /* Timer compare value, not used */
+            .period = t - 1,                 /* Defines the timer period */
+            .direction = CYHAL_TIMER_DIR_UP, /* Timer counts up */
+            .is_compare = false,             /* Don't use compare mode */
+            .is_continuous = true,           /* Run timer indefinitely */
+            .value = 0                       /* Initial value of counter */
+        };
+    /* Configure timer period and operation mode such as count direction,
+   duration */
+    cyhal_timer_configure(tim, &init_timer_cfg);
+
+    if (opmode == HWTIMER_MODE_ONESHOT)
+    {
+        /* set timer to single mode */
+        cyhal_timer_stop(tim);
+    }
+    else
+    {
+        cyhal_timer_reset(tim);
+    }
+
+    result = cyhal_timer_start(tim);
+    if (result != CY_RSLT_SUCCESS)
+    {
+        LOG_E("time start error\r\n");
+        cyhal_timer_free(tim);
+    }
+
+    /* Assign the ISR to execute on timer interrupt */
+    cyhal_timer_register_callback(tim, isr_timer, NULL);
+    /* Set the event on which timer interrupt occurs and enable it */
+    cyhal_timer_enable_event(tim, CYHAL_TIMER_IRQ_TERMINAL_COUNT, 1, true);
+
+    return result;
+}
+
+static void timer_stop(rt_hwtimer_t *timer)
+{
+
+    RT_ASSERT(timer != RT_NULL);
+
+    cyhal_timer_t *tim = RT_NULL;
+
+    tim = (cyhal_timer_t *)timer->parent.user_data;
+
+    cyhal_timer_stop(tim);
+}
+
+static rt_uint32_t timer_counter_get(rt_hwtimer_t *timer)
+{
+    cyhal_timer_t *tim = RT_NULL;
+
+    rt_uint32_t count;
+
+    RT_ASSERT(timer != RT_NULL);
+
+    tim = (cyhal_timer_t *)timer->parent.user_data;
+
+    count = cyhal_timer_read(tim);
+
+    return count;
+}
+
+static rt_err_t timer_ctrl(rt_hwtimer_t *timer, rt_uint32_t cmd, void *arg)
+{
+    RT_ASSERT(timer != RT_NULL);
+    RT_ASSERT(arg != RT_NULL);
+
+    cyhal_timer_t *tim = RT_NULL;
+
+    rt_err_t result = -RT_ERROR;
+
+    tim = (cyhal_timer_t *)timer->parent.user_data;
+
+    switch (cmd)
+    {
+    case HWTIMER_CTRL_FREQ_SET:
+    {
+        rt_uint32_t freq;
+        rt_uint16_t val;
+
+        freq = *((rt_uint32_t *)arg);
+
+        result = cyhal_timer_set_frequency(tim, freq);
+
+        if (result != CY_RSLT_SUCCESS)
+        {
+            LOG_E("cyhal_timer_set_frequency error\r\n");
+            return RT_ERROR;
+        }
+    }
+    break;
+    default:
+    {
+        result = -RT_EINVAL;
+    }
+    break;
+    }
+    return result;
+}
+
+static const struct rt_hwtimer_info _info = TIM_DEV_INFO_CONFIG;
+
+static const struct rt_hwtimer_ops _ops =
+    {
+        .init = timer_init,
+        .start = timer_start,
+        .stop = timer_stop,
+        .count_get = timer_counter_get,
+        .control = timer_ctrl,
+};
+
+#ifdef BSP_USING_TIM1
+static void isr_timer(void *callback_arg, cyhal_timer_event_t event)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    (void)callback_arg;
+    (void)event;
+
+    rt_device_hwtimer_isr(&cyp_hwtimer_obj[TIM1_INDEX].time_device);
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif
+#ifdef BSP_USING_TIM2
+static void isr_timer(void *callback_arg, cyhal_timer_event_t event)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    (void)callback_arg;
+    (void)event;
+
+    rt_device_hwtimer_isr(&cyp_hwtimer_obj[TIM2_INDEX].time_device);
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif
+
+int cyp_hwtimer_init(void)
+{
+    int i = 0;
+    int result = RT_EOK;
+
+    for (i = 0; i < sizeof(cyp_hwtimer_obj) / sizeof(cyp_hwtimer_obj[0]); i++)
+    {
+        cyp_hwtimer_obj[i].time_device.info = &_info;
+        cyp_hwtimer_obj[i].time_device.ops = &_ops;
+        if (rt_device_hwtimer_register(&cyp_hwtimer_obj[i].time_device, cyp_hwtimer_obj[i].name, &cyp_hwtimer_obj[i].tim_handle) != RT_EOK)
+        {
+            LOG_E("%s register failed", cyp_hwtimer_obj[i].name);
+            result = -RT_ERROR;
+        }
+    }
+    return result;
+}
+INIT_BOARD_EXPORT(cyp_hwtimer_init);
+
+#endif /*RT_USING_HWTIMER*/
+#endif /*BSP_USING_TIM*/
+
+/* this is a hwtimer test demo*/
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#define HWTIMER_DEV_NAME "time2" /* device name */
+
+static rt_err_t timeout_cb(rt_device_t dev, rt_size_t size)
+{
+    rt_kprintf("this is hwtimer timeout callback fucntion!\n");
+    rt_kprintf("tick is :%d !\n", rt_tick_get());
+
+    return 0;
+}
+
+int hwtimer_sample()
+{
+    rt_err_t ret = RT_EOK;
+    rt_hwtimerval_t timeout_s;
+    rt_device_t hw_dev = RT_NULL;
+    rt_hwtimer_mode_t mode;
+    rt_uint32_t freq = 10000;
+
+    hw_dev = rt_device_find(HWTIMER_DEV_NAME);
+    if (hw_dev == RT_NULL)
+    {
+        rt_kprintf("hwtimer sample run failed! can't find %s device!\n", HWTIMER_DEV_NAME);
+        return RT_ERROR;
+    }
+
+    ret = rt_device_open(hw_dev, RT_DEVICE_OFLAG_RDWR);
+    if (ret != RT_EOK)
+    {
+        rt_kprintf("open %s device failed!\n", HWTIMER_DEV_NAME);
+        return ret;
+    }
+
+    rt_device_set_rx_indicate(hw_dev, timeout_cb);
+
+    rt_device_control(hw_dev, HWTIMER_CTRL_FREQ_SET, &freq);
+
+    mode = HWTIMER_MODE_PERIOD;
+    ret = rt_device_control(hw_dev, HWTIMER_CTRL_MODE_SET, &mode);
+    if (ret != RT_EOK)
+    {
+        rt_kprintf("set mode failed! ret is :%d\n", ret);
+        return ret;
+    }
+
+    /* Example Set the timeout period of the timer */
+    timeout_s.sec = 3;  /* secend */
+    timeout_s.usec = 0; /* microsecend */
+    if (rt_device_write(hw_dev, 0, &timeout_s, sizeof(timeout_s)) != sizeof(timeout_s))
+    {
+        rt_kprintf("set timeout value failed\n");
+        return RT_ERROR;
+    }
+
+    while (1)
+    {
+        rt_thread_mdelay(1500);
+
+        rt_device_read(hw_dev, 0, &timeout_s, sizeof(timeout_s));
+        rt_kprintf("Read: Sec = %d, Usec = %d\n", timeout_s.sec, timeout_s.usec);
+    }
+    return ret;
+}
+MSH_CMD_EXPORT(hwtimer_sample, hwtimer sample);