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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Email: [email protected]
*
* Change Logs:
* Date Author Notes
* 2023-10-23 zhangyan first version
*
*/
#include "rtconfig.h"
#include <rtdevice.h>
#include <string.h>
#define LOG_TAG "i2c_drv"
#include "drv_log.h"
#include "drv_i2c.h"
#include "fi2c.h"
#include "fi2c_hw.h"
#include "fio_mux.h"
#include "drivers/dev_i2c.h"
#include "fparameters.h"
#include "interrupt.h"
#ifdef RT_USING_SMART
#include <ioremap.h>
#endif
/*Please define the length of the mem_addr of the device*/
#if defined(I2C_USE_MIO)
#include "fmio_hw.h"
#include "fmio.h"
static FMioCtrl mio_handle;
#endif
struct phytium_i2c_bus
{
struct rt_i2c_bus_device device;
FI2c i2c_handle;
const char *name;
};
static void FI2cReadDoneCallback(void *instance_p, void *param)
{
FASSERT(instance_p);
LOG_D("trigger tx \n");
}
static void FI2cTransAbortedCallback(void *instance_p, void *param)
{
FASSERT(instance_p);
LOG_D("trans aborted\n");
}
static void FI2cMasterStopCallback(void *instance_p, void *param)
{
FASSERT(instance_p);
LOG_D("stop");
}
static void FI2cMasterStartRxCallback(void *instance_p, void *param)
{
FASSERT(instance_p);
LOG_D("trigger rx\n");
}
static void FI2cMasterSetupInterrupt(FI2c *instance_p)
{
rt_uint32_t cpu_id = rt_hw_cpu_id();
/* callback function for FI2C_MASTER_INTR_EVT interrupt */
instance_p->master_evt_handlers[FI2C_EVT_MASTER_TRANS_ABORTED] = FI2cTransAbortedCallback;
instance_p->master_evt_handlers[FI2C_EVT_MASTER_READ_DONE] = FI2cReadDoneCallback;
instance_p->master_evt_handlers[FI2C_EVT_MASTER_WRITE_DONE] = FI2cMasterStartRxCallback;
instance_p->master_evt_handlers[FI2C_EVT_MASTER_STOP_DEL] = FI2cMasterStopCallback;
rt_hw_interrupt_set_target_cpus(instance_p->config.irq_num, cpu_id);
rt_hw_interrupt_set_priority(instance_p->config.irq_num, instance_p->config.irq_priority);
rt_hw_interrupt_install(instance_p->config.irq_num, FI2cMasterIntrHandler, instance_p, "i2c_master");
rt_hw_interrupt_umask(instance_p->config.irq_num);
}
#if defined(I2C_USE_CONTROLLER)
static rt_err_t i2c_config(struct phytium_i2c_bus *i2c_bus)
{
RT_ASSERT(i2c_bus);
FI2cConfig input_cfg;
FI2c *instance_p = &i2c_bus->i2c_handle;
FError ret = FI2C_SUCCESS;
FIOPadSetI2CMux(instance_p->config.instance_id);
/* Lookup default configs by instance id */
input_cfg = FI2cLookupConfig(instance_p->config.instance_id);
#ifdef RT_USING_SMART
input_cfg.base_addr = (uintptr)rt_ioremap((void *)input_cfg.base_addr, 0x1000);
#endif
input_cfg.speed_rate = FI2C_SPEED_STANDARD_RATE;
input_cfg.work_mode = FI2C_MASTER;
FI2cDeInitialize(&i2c_bus->i2c_handle);
/* Initialization */
ret = FI2cCfgInitialize(instance_p, &input_cfg);
if (ret != FI2C_SUCCESS)
{
LOG_E("Init master I2c failed, ret: 0x%x", ret);
return -RT_ERROR;
}
ret = FI2cSetAddress(&i2c_bus->i2c_handle, FI2C_MASTER, i2c_bus->i2c_handle.config.slave_addr);
if (FI2C_SUCCESS != ret)
{
return -RT_ERROR;
}
ret = FI2cSetSpeed(&i2c_bus->i2c_handle, FI2C_SPEED_STANDARD_RATE, TRUE);
if (FI2C_SUCCESS != ret)
{
return -RT_ERROR;
}
FI2cMasterSetupInterrupt(&i2c_bus->i2c_handle);
return RT_EOK;
}
#endif
#if defined(I2C_USE_MIO)
static rt_err_t i2c_mio_config(struct phytium_i2c_bus *i2c_bus)
{
RT_ASSERT(i2c_bus);
FError ret = FI2C_SUCCESS;
FI2cConfig i2c_config;
FI2c *instance_p = &i2c_bus->i2c_handle;
FIOPadSetMioMux(instance_p->config.instance_id);
mio_handle.config = *FMioLookupConfig(instance_p->config.instance_id);
#ifdef RT_USING_SMART
mio_handle.config.func_base_addr = (uintptr)rt_ioremap((void *)mio_handle.config.func_base_addr, 0x1200);
mio_handle.config.mio_base_addr = (uintptr)rt_ioremap((void *)mio_handle.config.mio_base_addr, 0x200);
#endif
ret = FMioFuncInit(&mio_handle, FMIO_FUNC_SET_I2C);
if (ret != FT_SUCCESS)
{
LOG_E("MIO initialize error.");
return -RT_ERROR;
}
/* Modify i2c configuration */
rt_memset(&i2c_config, 0, sizeof(i2c_config));
i2c_config.base_addr = FMioFuncGetAddress(&mio_handle, FMIO_FUNC_SET_I2C);
i2c_config.irq_num = FMioFuncGetIrqNum(&mio_handle, FMIO_FUNC_SET_I2C);
i2c_config.irq_priority = 0;
i2c_config.ref_clk_hz = FMIO_CLK_FREQ_HZ;
i2c_config.work_mode = FI2C_MASTER;
i2c_config.use_7bit_addr = TRUE;
i2c_config.speed_rate = FI2C_SPEED_STANDARD_RATE;
i2c_config.auto_calc = TRUE;
ret = FI2cCfgInitialize(instance_p, &i2c_config);
if (FI2C_SUCCESS != ret)
{
LOG_E("Init mio master failed, ret: 0x%x", ret);
return -RT_ERROR;
}
ret = FI2cSetSpeed(instance_p, FI2C_SPEED_STANDARD_RATE, TRUE);
if (FI2C_SUCCESS != ret)
{
return -RT_ERROR;
}
rt_memset(&mio_handle, 0, sizeof(mio_handle));
FI2cMasterSetupInterrupt(instance_p);
return RT_EOK;
}
#endif
static rt_err_t phytium_i2c_set_speed(struct phytium_i2c_bus *i2c_bus, rt_uint32_t speed)
{
RT_ASSERT(i2c_bus);
u32 ret;
ret = FI2cSetSpeed(&i2c_bus->i2c_handle, speed, TRUE);
if (ret != FI2C_SUCCESS)
{
LOG_E("Set i2c speed failed!\n");
return -RT_ERROR;
}
return RT_EOK;
}
static rt_err_t i2c_bus_control(struct rt_i2c_bus_device *device, int cmd, void *args)
{
RT_ASSERT(device);
struct phytium_i2c_bus *i2c_bus;
i2c_bus = (struct phytium_i2c_bus *)(device);
FI2cConfig *config_p;
switch (cmd)
{
case RT_I2C_DEV_CTRL_CLK:
phytium_i2c_set_speed(i2c_bus, *(rt_uint32_t *)args);
break;
case RT_I2C_DEV_CTRL_10BIT:
config_p = &i2c_bus->i2c_handle.config;
config_p->use_7bit_addr = FALSE;
FI2cCfgInitialize(&i2c_bus->i2c_handle, config_p);
break;
default:
return -RT_EIO;
}
return RT_EOK;
}
static rt_ssize_t i2c_master_xfer(struct rt_i2c_bus_device *device, struct rt_i2c_msg msgs[], rt_uint32_t num)
{
RT_ASSERT(device);
rt_ssize_t i;
FI2cMsg fmsgs;
struct rt_i2c_msg *pmsg;
struct phytium_i2c_bus *i2c_bus;
i2c_bus = (struct phytium_i2c_bus *)(device);
for (i = 0; i < num; i++)
{
pmsg = &msgs[i];
fmsgs.device_addr = pmsg->addr;
fmsgs.buf = (u8 *)pmsg->buf;
fmsgs.len = pmsg->len;
fmsgs.flags = (pmsg->flags & RT_I2C_RD) ? FI2C_M_RD : FI2C_M_WE;
FI2cMasterIntrXfer(&i2c_bus->i2c_handle, &fmsgs, 1);
rt_thread_mdelay(5);
}
return i;
}
static const struct rt_i2c_bus_device_ops _i2c_ops =
{
.master_xfer = i2c_master_xfer,
.slave_xfer = NULL,
.i2c_bus_control = i2c_bus_control
};
#if defined(I2C_USE_CONTROLLER)
static int i2c_controller_init(struct phytium_i2c_bus *i2c_controller_bus)
{
rt_err_t ret = RT_EOK;
ret = i2c_config(i2c_controller_bus);
if (ret != RT_EOK)
{
LOG_E("I2C config failed.\n");
return -RT_ERROR;
}
i2c_controller_bus->device.ops = &_i2c_ops;
ret = rt_i2c_bus_device_register(&i2c_controller_bus->device, i2c_controller_bus->name);
RT_ASSERT(RT_EOK == ret);
LOG_D("I2C bus reg success.\n");
return ret;
}
#endif
#if defined(I2C_USE_MIO)
static int i2c_mio_init(struct phytium_i2c_bus *i2c_mio_bus)
{
rt_err_t ret = RT_EOK;
ret = i2c_mio_config(i2c_mio_bus);
if (ret != RT_EOK)
{
LOG_E("I2C mio config failed.\n");
return -RT_ERROR;
}
i2c_mio_bus->device.ops = &_i2c_ops;
ret = rt_i2c_bus_device_register(&i2c_mio_bus->device, i2c_mio_bus->name);
RT_ASSERT(RT_EOK == ret);
LOG_D("I2C mio bus reg success.\n");
return ret;
}
#endif
#if defined(RT_USING_I2C0)
static struct phytium_i2c_bus i2c_controller0_bus;
#endif
#if defined(RT_USING_I2C1)
static struct phytium_i2c_bus i2c_controller1_bus;
#endif
#if defined(RT_USING_I2C2)
static struct phytium_i2c_bus i2c_controller2_bus;
#endif
#if defined(RT_USING_I2C3)
static struct phytium_i2c_bus i2c_controller3_bus;
#endif
#if defined(RT_USING_MIO0)
static struct phytium_i2c_bus i2c_mio0_bus;
#endif
#if defined(RT_USING_MIO1)
static struct phytium_i2c_bus i2c_mio1_bus;
#endif
#if defined(RT_USING_MIO2)
static struct phytium_i2c_bus i2c_mio2_bus;
#endif
#if defined(RT_USING_MIO3)
static struct phytium_i2c_bus i2c_mio3_bus;
#endif
#if defined(RT_USING_MIO4)
static struct phytium_i2c_bus i2c_mio4_bus;
#endif
#if defined(RT_USING_MIO5)
static struct phytium_i2c_bus i2c_mio5_bus;
#endif
#if defined(RT_USING_MIO6)
static struct phytium_i2c_bus i2c_mio6_bus;
#endif
#if defined(RT_USING_MIO7)
static struct phytium_i2c_bus i2c_mio7_bus;
#endif
#if defined(RT_USING_MIO8)
static struct phytium_i2c_bus i2c_mio8_bus;
#endif
#if defined(RT_USING_MIO9)
static struct phytium_i2c_bus i2c_mio9_bus;
#endif
#if defined(RT_USING_MIO10)
static struct phytium_i2c_bus i2c_mio10_bus;
#endif
#if defined(RT_USING_MIO11)
static struct phytium_i2c_bus i2c_mio11_bus;
#endif
#if defined(RT_USING_MIO12)
static struct phytium_i2c_bus i2c_mio12_bus;
#endif
#if defined(RT_USING_MIO13)
static struct phytium_i2c_bus i2c_mio13_bus;
#endif
#if defined(RT_USING_MIO14)
static struct phytium_i2c_bus i2c_mio14_bus;
#endif
#if defined(RT_USING_MIO15)
static struct phytium_i2c_bus i2c_mio15_bus;
#endif
int rt_hw_i2c_init(void)
{
#if defined(RT_USING_I2C0)
i2c_controller0_bus.name = "I2C0";
i2c_controller0_bus.i2c_handle.config.instance_id = FI2C0_ID;
i2c_controller_init(&i2c_controller0_bus);
#endif
#if defined(RT_USING_I2C1)
i2c_controller1_bus.name = "I2C1";
i2c_controller1_bus.i2c_handle.config.instance_id = FI2C1_ID;
i2c_controller_init(&i2c_controller1_bus);
#endif
#if defined(RT_USING_I2C2)
i2c_controller2_bus.name = "I2C2";
i2c_controller2_bus.i2c_handle.config.instance_id = FI2C2_ID;
i2c_controller_init(&i2c_controller2_bus);
#endif
#if defined(RT_USING_I2C3)
i2c_controller3_bus.name = "I2C3";
i2c_controller3_bus.i2c_handle.config.instance_id = FI2C3_ID;
i2c_controller_init(&i2c_controller3_bus);
#endif
#if defined(RT_USING_MIO0)
i2c_mio0_bus.name = "MIO0";
i2c_mio0_bus.i2c_handle.config.instance_id = FMIO0_ID;
i2c_mio_init(&i2c_mio0_bus);
#endif
#if defined(RT_USING_MIO1)
i2c_mio1_bus.name = "MIO1";
i2c_mio1_bus.i2c_handle.config.instance_id = FMIO1_ID;
i2c_mio_init(&i2c_mio1_bus);
#endif
#if defined(RT_USING_MIO2)
i2c_mio2_bus.name = "MIO2";
i2c_mio2_bus.i2c_handle.config.instance_id = FMIO2_ID;
i2c_mio_init(&i2c_mio2_bus);
#endif
#if defined(RT_USING_MIO3)
i2c_mio3_bus.name = "MIO3";
i2c_mio3_bus.i2c_handle.config.instance_id = FMIO3_ID;
i2c_mio_init(&i2c_mio3_bus);
#endif
#if defined(RT_USING_MIO4)
i2c_mio4_bus.name = "MIO4";
i2c_mio4_bus.i2c_handle.config.instance_id = FMIO4_ID;
i2c_mio_init(&i2c_mio4_bus);
#endif
#if defined(RT_USING_MIO5)
i2c_mio5_bus.name = "MIO5";
i2c_mio5_bus.i2c_handle.config.instance_id = FMIO5_ID;
i2c_mio_init(&i2c_mio5_bus);
#endif
#if defined(RT_USING_MIO6)
i2c_mio6_bus.name = "MIO6";
i2c_mio6_bus.i2c_handle.config.instance_id = FMIO6_ID;
i2c_mio_init(&i2c_mio6_bus);
#endif
#if defined(RT_USING_MIO7)
i2c_mio7_bus.name = "MIO2";
i2c_mio7_bus.i2c_handle.config.instance_id = FMIO7_ID;
i2c_mio_init(&i2c_mio7_bus);
#endif
#if defined(RT_USING_MIO8)
i2c_mio8_bus.name = "MIO8";
i2c_mio8_bus.i2c_handle.config.instance_id = FMIO8_ID;
i2c_mio_init(&i2c_mio8_bus);
#endif
#if defined(RT_USING_MIO9)
i2c_mio9_bus.name = "MIO9";
i2c_mio9_bus.i2c_handle.config.instance_id = FMIO9_ID;
i2c_mio_init(&i2c_mio9_bus);
#endif
#if defined(RT_USING_MIO10)
i2c_mio10_bus.name = "MIO10";
i2c_mio10_bus.i2c_handle.config.instance_id = FMIO10_ID;
i2c_mio_init(&i2c_mio10_bus);
#endif
#if defined(RT_USING_MIO11)
i2c_mio11_bus.name = "MIO11";
i2c_mio11_bus.i2c_handle.config.instance_id = FMIO11_ID;
i2c_mio_init(&i2c_mio11_bus);
#endif
#if defined(RT_USING_MIO12)
i2c_mio12_bus.name = "MIO12";
i2c_mio12_bus.i2c_handle.config.instance_id = FMIO12_ID;
i2c_mio_init(&i2c_mio12_bus);
#endif
#if defined(RT_USING_MIO13)
i2c_mio13_bus.name = "MIO13";
i2c_mio13_bus.i2c_handle.config.instance_id = FMIO13_ID;
i2c_mio_init(&i2c_mio13_bus);
#endif
#if defined(RT_USING_MIO14)
i2c_mio14_bus.name = "MIO14";
i2c_mio14_bus.i2c_handle.config.instance_id = FMIO14_ID;
i2c_mio_init(&i2c_mio14_bus);
#endif
#if defined(RT_USING_MIO15)
i2c_mio15_bus.name = "MIO15";
i2c_mio15_bus.i2c_handle.config.instance_id = FMIO15_ID;
i2c_mio_init(&i2c_mio15_bus);
#endif
return 0;
}
INIT_DEVICE_EXPORT(rt_hw_i2c_init);
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