Merge pull request #4392 from Jackistang/master

[bsp/max32660] add the driver of i2c

bsp/maxim/MAX32660_EVSYS/.config

@@ -14,7 +14,7 @@ CONFIG_RT_ALIGN_SIZE=4
 CONFIG_RT_THREAD_PRIORITY_32=y
 # CONFIG_RT_THREAD_PRIORITY_256 is not set
 CONFIG_RT_THREAD_PRIORITY_MAX=32
-CONFIG_RT_TICK_PER_SECOND=100
+CONFIG_RT_TICK_PER_SECOND=1000
 CONFIG_RT_USING_OVERFLOW_CHECK=y
 CONFIG_RT_USING_HOOK=y
 CONFIG_RT_USING_IDLE_HOOK=y
@@ -272,6 +272,7 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_PKG_USING_PDULIB is not set
 # CONFIG_PKG_USING_BTSTACK is not set
 # CONFIG_PKG_USING_LORAWAN_ED_STACK is not set
+# CONFIG_PKG_USING_WAYZ_IOTKIT is not set
 
 #
 # security packages
@@ -300,6 +301,7 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_PKG_USING_HELIX is not set
 # CONFIG_PKG_USING_AZUREGUIX is not set
 # CONFIG_PKG_USING_TOUCHGFX2RTT is not set
+# CONFIG_PKG_USING_LVGL is not set
 
 #
 # tools packages
@@ -311,6 +313,8 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_PKG_USING_RDB is not set
 # CONFIG_PKG_USING_QRCODE is not set
 # CONFIG_PKG_USING_ULOG_EASYFLASH is not set
+# CONFIG_PKG_USING_ULOG_FILE is not set
+# CONFIG_PKG_USING_LOGMGR is not set
 # CONFIG_PKG_USING_ADBD is not set
 # CONFIG_PKG_USING_COREMARK is not set
 # CONFIG_PKG_USING_DHRYSTONE is not set
@@ -324,6 +328,16 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_PKG_USING_UMCN is not set
 # CONFIG_PKG_USING_LWRB2RTT is not set
 # CONFIG_PKG_USING_CPU_USAGE is not set
+# CONFIG_PKG_USING_GBK2UTF8 is not set
+# CONFIG_PKG_USING_VCONSOLE is not set
+# CONFIG_PKG_USING_KDB is not set
+# CONFIG_PKG_USING_WAMR is not set
+# CONFIG_PKG_USING_MICRO_XRCE_DDS_CLIENT is not set
+# CONFIG_PKG_USING_LWLOG is not set
+# CONFIG_PKG_USING_ANV_TRACE is not set
+# CONFIG_PKG_USING_ANV_MEMLEAK is not set
+# CONFIG_PKG_USING_ANV_TESTSUIT is not set
+# CONFIG_PKG_USING_ANV_BENCH is not set
 
 #
 # system packages
@@ -361,6 +375,13 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_PKG_USING_UC_COMMON is not set
 # CONFIG_PKG_USING_UC_MODBUS is not set
 # CONFIG_PKG_USING_PPOOL is not set
+# CONFIG_PKG_USING_OPENAMP is not set
+# CONFIG_PKG_USING_RT_KPRINTF_THREADSAFE is not set
+# CONFIG_PKG_USING_RT_MEMCPY_CM is not set
+# CONFIG_PKG_USING_QFPLIB_M0_FULL is not set
+# CONFIG_PKG_USING_QFPLIB_M0_TINY is not set
+# CONFIG_PKG_USING_QFPLIB_M3 is not set
+# CONFIG_PKG_USING_LPM is not set
 
 #
 # peripheral libraries and drivers
@@ -369,6 +390,7 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_PKG_USING_REALTEK_AMEBA is not set
 # CONFIG_PKG_USING_SHT2X is not set
 # CONFIG_PKG_USING_SHT3X is not set
+# CONFIG_PKG_USING_AS7341 is not set
 # CONFIG_PKG_USING_STM32_SDIO is not set
 # CONFIG_PKG_USING_ICM20608 is not set
 # CONFIG_PKG_USING_U8G2 is not set
@@ -418,7 +440,10 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_PKG_USING_SSD1306 is not set
 # CONFIG_PKG_USING_QKEY is not set
 # CONFIG_PKG_USING_RS485 is not set
-# CONFIG_PKG_USING_BSAL is not set
+# CONFIG_PKG_USING_NES is not set
+# CONFIG_PKG_USING_VIRTUAL_SENSOR is not set
+# CONFIG_PKG_USING_VDEVICE is not set
+# CONFIG_PKG_USING_SGM706 is not set
 
 #
 # miscellaneous packages
@@ -468,6 +493,9 @@ CONFIG_RT_USING_PIN=y
 # CONFIG_PKG_USING_TETRIS is not set
 # CONFIG_PKG_USING_LWGPS is not set
 # CONFIG_PKG_USING_TENSORFLOWLITEMICRO is not set
+# CONFIG_PKG_USING_STATE_MACHINE is not set
+# CONFIG_PKG_USING_MCURSES is not set
+# CONFIG_PKG_USING_COWSAY is not set
 
 #
 # Hardware Drivers Config
@@ -485,3 +513,4 @@ CONFIG_BSP_USING_UART1=y
 # CONFIG_BSP_UART1_RX_USING_DMA is not set
 # CONFIG_BSP_USING_SPI is not set
 # CONFIG_BSP_USING_ON_CHIP_FLASH is not set
+# CONFIG_BSP_USING_I2C is not set

bsp/maxim/MAX32660_EVSYS/README.md

@@ -78,7 +78,7 @@ MAX32660-EVSYS开发板常用 **板载资源** 如下：
 | SPI          |     支持     |      SPI0, SPI1       |
 | RTC          |              |                       |
 | I2S          |              |                       |
-| I2C          |              |                       |
+| I2C          |     支持     |      I2C0, I2C1       |
 | TIMER        |              |                       |
 | Watchdog     |              |                       |
 

bsp/maxim/MAX32660_EVSYS/board/Kconfig

@@ -66,6 +66,22 @@ menu "On-chip Peripheral Drivers"
         select PKG_USING_FAL
         bool "Enable on-chip FLASH"
         default n
+    config BSP_USING_I2C
+        bool "Enable I2C"
+        select RT_USING_I2C
+        default n
+
+        if BSP_USING_I2C
+            config BSP_USING_I2C0
+                bool "Enable I2C0 bus [SCL P0.8; SDA P0.9]"
+                default y
+            
+            config BSP_USING_I2C1
+                bool "Enable I2C1 bus [SCL P0.2; SDA P0.3]"
+                default n
+        endif
+            
+            
         
 endmenu
 

bsp/maxim/MAX32660_EVSYS/rtconfig.h

@@ -10,7 +10,7 @@
 #define RT_ALIGN_SIZE 4
 #define RT_THREAD_PRIORITY_32
 #define RT_THREAD_PRIORITY_MAX 32
-#define RT_TICK_PER_SECOND 100
+#define RT_TICK_PER_SECOND 1000
 #define RT_USING_OVERFLOW_CHECK
 #define RT_USING_HOOK
 #define RT_USING_IDLE_HOOK

bsp/maxim/libraries/HAL_Drivers/SConscript

@@ -20,6 +20,9 @@ if GetDepend(['RT_USING_PWM']):
 if GetDepend(['RT_USING_SPI']):
     src += ['drv_spi.c']
 
+if GetDepend(['RT_USING_I2C']):
+    src += ['drv_i2c.c']
+
 if GetDepend(['RT_USING_I2C', 'RT_USING_I2C_BITOPS']):
     src += ['drv_soft_i2c.c']
 

bsp/maxim/libraries/HAL_Drivers/drv_i2c.c

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-02-26     Jackistang   first version
+ *
+ */
+
+#include "drv_i2c.h"
+#include "i2c.h"
+#include <rtdevice.h>
+#include <rtthread.h>
+#include "board.h"
+
+#ifdef RT_USING_I2C
+
+#if !defined(BSP_USING_I2C0) && !defined(BSP_USING_I2C1)
+    #error "Please define at least one BSP_USING_I2Cx"
+    /* this driver can be disabled at menuconfig -> Hardware Drivers Config -> On-chip Peripheral Drivers -> Enable I2C */
+#endif
+
+#define DBG_LEVEL   DBG_LOG
+#include <rtdbg.h>
+#define LOG_TAG                "drv.i2c"
+
+/* mxc config class */
+struct mxc_i2c_config
+{
+    const char *name;
+    mxc_i2c_regs_t *i2c_periph;
+    i2c_speed_t speed;
+    IRQn_Type irq_type;
+};
+
+struct mxc_i2c
+{
+    struct rt_i2c_bus_device bus;
+    struct mxc_i2c_config *config;
+};
+
+static struct mxc_i2c_config i2c_config[] =
+{
+#ifdef BSP_USING_I2C0
+    {
+        .name       = "i2c0",
+        .i2c_periph = MXC_I2C_GET_I2C(0),
+        .irq_type   = MXC_I2C_GET_IRQ(0),
+        .speed      = I2C_STD_MODE,
+        /*I2C_STD_MODE: 100KHz, I2C_FAST_MODE: 400KHz, I2C_FASTPLUS_MODE: 1MHz, I2C_HS_MODE: 3.4MHz */
+    },
+#endif
+#ifdef BSP_USING_I2C1
+    {
+        .name       = "i2c1",
+        .i2c_periph = MXC_I2C_GET_I2C(1),
+        .irq_type   = MXC_I2C_GET_IRQ(1),
+        .speed      = I2C_STD_MODE,
+        /*I2C_STD_MODE: 100KHz, I2C_FAST_MODE: 400KHz, I2C_FASTPLUS_MODE: 1MHz, I2C_HS_MODE: 3.4MHz */
+    },
+#endif
+};
+
+static struct mxc_i2c i2c_obj[sizeof(i2c_config) / sizeof(i2c_config[0])] = {0};
+
+
+static rt_size_t mxc_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
+                                  struct rt_i2c_msg msgs[],
+                                  rt_uint32_t num)
+{
+    rt_uint32_t i, ret;
+    rt_uint16_t addr;
+    int error;
+    int restart = 0;
+    struct rt_i2c_msg *msg;
+    struct mxc_i2c *obj = (struct mxc_i2c *)bus;
+
+    for (i = 0; i < num; i++)
+    {
+        msg = &msgs[i];
+
+        if (msg->flags & RT_I2C_ADDR_10BIT || msg->flags & RT_I2C_NO_START || msg->flags & RT_I2C_IGNORE_NACK || msg->flags & RT_I2C_NO_READ_ACK)
+        {
+            LOG_E("Not support RT_I2C_ADDR_10BIT or RT_I2C_NO_START or RT_I2C_IGNORE_NACK or RT_I2C_NO_READ_ACK");
+            return 0;
+        }
+
+        if (msg->flags & RT_I2C_NO_STOP)
+        {
+            restart = 1;
+        }
+
+        if (msg->flags & RT_I2C_RD)
+        {
+            addr = msg->addr << 1;
+            if ((error = I2C_MasterRead(obj->config->i2c_periph, (uint8_t)addr, msg->buf, msg->len, restart)) != msg->len)
+            {
+                LOG_E("Error writing %d", error);
+                return 0;
+            }
+        }
+        else    /* RT_I2C_WR */
+        {
+            addr = msg->addr << 1;
+            if ((error = I2C_MasterWrite(obj->config->i2c_periph, (uint8_t)addr, msg->buf, msg->len, restart)) != msg->len)
+            {
+                LOG_E("Error writing %d", error);
+                return 0;
+            }
+        }
+    }
+    ret = i;
+
+    return ret;
+}
+
+static const struct rt_i2c_bus_device_ops mxc_i2c_ops =
+{
+    mxc_i2c_mst_xfer,
+    RT_NULL,
+    RT_NULL,
+};
+
+int rt_hw_i2c_init(void)
+{
+    rt_size_t obj_num;
+    int index;
+    rt_err_t result = 0;
+
+#ifdef BSP_USING_I2C0
+    NVIC_EnableIRQ(I2C0_IRQn);
+#endif
+#ifdef BSP_USING_I2C1
+    NVIC_EnableIRQ(I2C1_IRQn);
+#endif
+
+    obj_num = sizeof(i2c_obj) / sizeof(struct mxc_i2c);
+    for (index = 0; index < obj_num; index++)
+    {
+        /* init i2c object */
+        i2c_obj[index].config = &i2c_config[index];
+        i2c_obj[index].bus.ops = &mxc_i2c_ops;
+
+        /* init i2c device */
+        I2C_Shutdown(i2c_config[index].i2c_periph);
+        I2C_Init(i2c_config[index].i2c_periph, i2c_config[index].speed, RT_NULL);
+
+        /* register i2c device */
+        result = rt_i2c_bus_device_register(&i2c_obj[index].bus,
+                                            i2c_obj[index].config->name
+                                           );
+        RT_ASSERT(result == RT_EOK);
+    }
+
+    return 0;
+}
+INIT_DEVICE_EXPORT(rt_hw_i2c_init);
+
+#ifdef BSP_USING_I2C0
+void I2C0_IRQHandler(void)
+{
+    rt_interrupt_enter();
+    I2C_Handler(MXC_I2C0);
+    rt_interrupt_leave();
+}
+#endif
+
+#ifdef BSP_USING_I2C1
+void I2C1_IRQHandler(void)
+{
+    rt_interrupt_enter();
+    I2C_Handler(MXC_I2C1);
+    rt_interrupt_leave();
+}
+#endif
+
+#endif /* RT_USING_I2C */

bsp/maxim/libraries/HAL_Drivers/drv_i2c.h

+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-02-26     Jackistang   first version
+ *
+ */
+
+#ifndef __DRV_I2C_H__
+#define __DRV_I2C_H__
+
+
+#endif /* __DRV_I2C_H__ */