* Copyright 2020, Jérôme Duval, jerome.duval@gmail.com.
* Distributed under the terms of the MIT License.
*/
#ifndef I2C_PRIVATE_H
#define I2C_PRIVATE_H
#include <new>
#include <stdio.h>
#include <string.h>
#include <lock.h>
#include <util/AutoLock.h>
#include <i2c.h>
#ifdef I2C_TRACE
# define TRACE(x...) dprintf("\33[33mi2c:\33[0m " x)
#else
# define TRACE(x...)
#endif
#define TRACE_ALWAYS(x...) dprintf("\33[33mi2c:\33[0m " x)
#define ERROR(x...) TRACE_ALWAYS(x)
#define CALLED() TRACE("CALLED %s\n", __PRETTY_FUNCTION__)
#define I2C_SIM_MODULE_NAME "bus_managers/i2c/sim/driver_v1"
#define I2C_PATHID_GENERATOR "i2c/path_id"
#define I2C_BUS_RAW_MODULE_NAME "bus_managers/i2c/bus/raw/device_v1"
class I2CBus;
class I2CDevice;
extern device_manager_info *gDeviceManager;
extern struct device_module_info gI2CBusRawModule;
extern i2c_bus_interface gI2CBusModule;
extern i2c_device_interface gI2CDeviceModule;
class I2CDevice {
public:
I2CDevice(device_node* node, I2CBus* bus,
i2c_addr slaveAddress);
~I2CDevice();
status_t InitCheck();
status_t ExecCommand(i2c_op op, const void *cmdBuffer,
size_t cmdLength, void* dataBuffer,
size_t dataLength);
status_t AcquireBus();
void ReleaseBus();
private:
device_node* fNode;
I2CBus* fBus;
i2c_addr fSlaveAddress;
};
class I2CBus {
public:
I2CBus(device_node *node, uint8 id);
~I2CBus();
status_t InitCheck();
status_t ExecCommand(i2c_op op, i2c_addr slaveAddress,
const void *cmdBuffer, size_t cmdLength,
void* dataBuffer, size_t dataLength);
status_t Scan();
status_t RegisterDevice(i2c_addr slaveAddress,
char* hid, char** cid,
acpi_handle acpiHandle);
status_t AcquireBus();
void ReleaseBus();
private:
device_node* fNode;
uint8 fID;
i2c_sim_interface* fController;
void* fCookie;
};
#endif
