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[ Kristjan Komloši HomePC ]
2016-12-21 18:19:26 +01:00
commit 4ec59a4b81
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5
CyUSBSerial_SDK_Linux/linux/library/90-cyusb.rules Normal file
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# Cypress USB driver for FX2 and FX3 (C) Cypress Semiconductor Corporation / ATR-LABS
# Rules written by V. Radhakrishnan ( rk@atr-labs.com )
# Cypress USB vendor ID = 0x04b4
KERNEL=="*", SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ACTION=="add", ATTR{idVendor}=="04b4", MODE="666"
KERNEL=="*", SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ACTION=="remove", TAG=="cyusb_dev"

222
CyUSBSerial_SDK_Linux/linux/library/CyUSBCommon.h Normal file
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/*
* Common header file of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <pthread.h>
#include <libusb-1.0/libusb.h>
#include "../../common/header/CyUSBSerial.h"
#ifdef __x86_64__
#pragma pack(1)
#else
#endif
typedef struct CY_DEVICE {
unsigned char inEndpoint;
unsigned char outEndpoint;
unsigned char interruptEndpoint;
unsigned char interfaceNum;
bool i2cCancelEvent;
bool spiCancelEvent;
bool uartCancelEvent;
bool rtsValue;
bool dtrValue;
unsigned short numEndpoints;
CY_FLOW_CONTROL_MODES uartFlowControlMode;
struct libusb_transfer *spiTransfer;
struct libusb_transfer *uartTransfer;
libusb_device_handle *devHandle;
pthread_t spiThreadId;
pthread_t uartThreadId;
pthread_mutex_t readLock;
pthread_mutex_t writeLock;
pthread_mutex_t notificationLock;
CY_DEVICE_TYPE deviceType;
}CY_DEVICE,*PCY_DEVICE;
#pragma pack()
CY_RETURN_STATUS CyResetPipe (CY_HANDLE handl, UINT8);
#define CY_DEBUG_PRINT_INFO(...) //User need to enable this
#define CY_DEBUG_PRINT_ERROR(...) //printf
#define DUMP_DATA 1
#ifdef DUMP_DATA
#define CY_DUMP_DATA(INPUT,LEN)\
{\
int i = 0, len = LEN;\
while ((len)) {\
printf ("%x ", (INPUT)[i++]);\
len--;\
}\
printf ("\n");\
}
#else
#define CY_DUMP_DATA (INPUT, LEN) do { }while (0);
#endif
#define CY_USB_SERIAL_TIMEOUT 5000
#define CY_EVENT_NOTIFICATION_TIMEOUT 0 //This will make the transfer infinite
#define CY_VENDOR_REQUEST_DEVICE_TO_HOST 0xC0
#define CY_VENDOR_REQUEST_HOST_TO_DEVICE 0x40
#define CY_CLASS_INTERFACE_REQUEST_DEVICE_TO_HOST 0XA1
#define CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE 0x21
//I2C related macros
#define CY_SCB_INDEX_POS 15
#define CY_I2C_CONFIG_LENGTH 16
#define CY_I2C_WRITE_COMMAND_POS 3
#define CY_I2C_WRITE_COMMAND_LEN_POS 4
#define CY_I2C_GET_STATUS_LEN 3
#define CY_I2C_MODE_WRITE 1
#define CY_I2C_MODE_READ 0
#define CY_I2C_ERROR_BIT (1)
#define CY_I2C_ARBITRATION_ERROR_BIT (1 << 1)
#define CY_I2C_NAK_ERROR_BIT (1 << 2)
#define CY_I2C_BUS_ERROR_BIT (1 << 3)
#define CY_I2C_STOP_BIT_ERROR (1 << 4)
#define CY_I2C_BUS_BUSY_ERROR (1 << 5)
#define CY_I2C_ENABLE_PRECISE_TIMING 1
#define CY_I2C_EVENT_NOTIFICATION_LEN 3
//SPI related Macros
#define CY_SPI_CONFIG_LEN 16
#define CY_SPI_EVENT_NOTIFICATION_LEN 2
#define CY_SPI_READ_BIT (1)
#define CY_SPI_WRITE_BIT (1 << 1)
#define CY_SPI_SCB_INDEX_BIT (1 << 15)
#define CY_SPI_GET_STATUS_LEN 4
#define CY_SPI_UNDERFLOW_ERROR (1)
#define CY_SPI_BUS_ERROR (1 << 1)
//Vendor UART related macros
#define CY_UART_SET_FLOW_CONTROL_CMD 0x60
#define CY_UART_SEND_BREAK_CMD 0x23
#define CY_UART_CONFIG_LEN 16
#define CY_SET_LINE_CONTROL_STATE_CMD 0x22
#define CY_UART_EVENT_NOTIFICATION_LEN 10
#define CY_UART_SERIAL_STATE_CARRIER_DETECT 1
#define CY_UART_SERIAL_STATE_TRANSMISSION_CARRIER (1 << 1)
#define CY_UART_SERIAL_STATE_BREAK_DETECTION (1<< 2)
#define CY_UART_SERIAL_STATE_RING_SIGNAL_DETECTION (1 << 3)
#define CY_UART_SERIAL_STATE_FRAMING_ERROR (1 << 4)
#define CY_UART_SERIAL_STATE_PARITY_ERROR (1 << 5)
#define CY_UART_SERIAL_STATUE_OVERRUN (1 << 6)
//Bootloader related macros
#define CY_BOOT_CONFIG_SIZE 64
#define CY_DEVICE_CONFIG_SIZE 512
#define CY_FIRMWARE_BREAKUP_SIZE 4096
#define CY_GET_SILICON_ID_LEN 4
#define CY_GET_FIRMWARE_VERSION_LEN 8
#define CY_GET_SIGNATURE_LEN 4
//PHDC related macros
#define CY_PHDC_SET_FEATURE 0X03
#define CY_PHDC_CLR_FEATURE 0X01
#define CY_PHDC_GET_DATA_STATUS 0x00
typedef enum CY_VENDOR_CMDS
{
CY_GET_VERSION_CMD = 0xB0, /* Get the version of the boot-loader.
value = 0, index = 0, length = 4;
data_in = 32 bit version. */
CY_GET_SIGNATURE_CMD = 0xBD, /*Get the signature of the firmware
It is suppose to be 'CYUS' for normal firmware
and 'CYBL' for Bootloader.*/
CY_UART_GET_CONFIG_CMD = 0xC0, /* Retreive the 16 byte UART configuration information.
MS bit of value indicates the SCB index.
length = 16, data_in = 16 byte configuration. */
CY_UART_SET_CONFIG_CMD, /* Update the 16 byte UART configuration information.
MS bit of value indicates the SCB index.
length = 16, data_out = 16 byte configuration information. */
CY_SPI_GET_CONFIG_CMD, /* Retreive the 16 byte SPI configuration information.
MS bit of value indicates the SCB index.
length = 16, data_in = 16 byte configuration. */
CY_SPI_SET_CONFIG_CMD, /* Update the 16 byte SPI configuration information.
MS bit of value indicates the SCB index.
length = 16, data_out = 16 byte configuration information. */
CY_I2C_GET_CONFIG_CMD, /* Retreive the 16 byte I2C configuration information.
MS bit of value indicates the SCB index.
length = 16, data_in = 16 byte configuration. */
CY_I2C_SET_CONFIG_CMD = 0xC5, /* Update the 16 byte I2C configuration information.
MS bit of value indicates the SCB index.
length = 16, data_out = 16 byte configuration information. */
CY_I2C_WRITE_CMD, /* Perform I2C write operation.
value = bit0 - start, bit1 - stop, bit3 - start on idle,
bits[14:8] - slave address, bit15 - scbIndex. length = 0. The
data is provided over the bulk endpoints. */
CY_I2C_READ_CMD, /* Perform I2C read operation.
value = bit0 - start, bit1 - stop, bit2 - Nak last byte,
bit3 - start on idle, bits[14:8] - slave address, bit15 - scbIndex,
length = 0. The data is provided over the bulk endpoints. */
CY_I2C_GET_STATUS_CMD, /* Retreive the I2C bus status.
value = bit0 - 0: TX 1: RX, bit15 - scbIndex, length = 3,
data_in = byte0: bit0 - flag, bit1 - bus_state, bit2 - SDA state,
bit3 - TX underflow, bit4 - arbitration error, bit5 - NAK
bit6 - bus error,
byte[2:1] Data count remaining. */
CY_I2C_RESET_CMD, /* The command cleans up the I2C state machine and frees the bus.
value = bit0 - 0: TX path, 1: RX path; bit15 - scbIndex,
length = 0. */
CY_SPI_READ_WRITE_CMD = 0xCA, /* The command starts a read / write operation at SPI.
value = bit 0 - RX enable, bit 1 - TX enable, bit 15 - scbIndex;
index = length of transfer. */
CY_SPI_RESET_CMD, /* The command resets the SPI pipes and allows it to receive new
request.
value = bit 15 - scbIndex */
CY_SPI_GET_STATUS_CMD, /* The command returns the current transfer status. The count will match
the TX pipe status at SPI end. For completion of read, read all data
at the USB end signifies the end of transfer.
value = bit 15 - scbIndex */
CY_JTAG_ENABLE_CMD = 0xD0, /* Enable JTAG module */
CY_JTAG_DISABLE_CMD, /* Disable JTAG module */
CY_JTAG_READ_CMD, /* JTAG read vendor command */
CY_JTAG_WRITE_CMD, /* JTAG write vendor command */
CY_GPIO_GET_CONFIG_CMD = 0xD8, /* Get the GPIO configuration: */
CY_GPIO_SET_CONFIG_CMD, /* Set the GPIO configuration */
CY_GPIO_GET_VALUE_CMD, /* Get GPIO value: */
CY_GPIO_SET_VALUE_CMD, /* Set the GPIO value:*/
CY_PROG_USER_FLASH_CMD = 0xE0, /*Program user flash area. The total space available is 512 bytes.
This can be accessed by the user from USB. The flash area
address offset is from 0x0000 to 0x00200 and can be written to
page wise (128 byte).*/
CY_READ_USER_FLASH_CMD, /*Read user flash area. The total space available is 512 bytes.
This can be accessed by the user from USB. The flash area
address offset is from 0x0000 to 0x00200 and can be written to
page wise (128 byte).*/
CY_DEVICE_RESET_CMD = 0xE3, /*Performs a device reset from firmware*/
} CY_VENDOR_CMDS;
//JTAG related Macros
#define CY_JTAG_OUT_EP 0x04
#define CY_JTAG_IN_EP 0x85
//GPIO related Macros
#define CY_GPIO_GET_LEN 2
#define CY_GPIO_SET_LEN 1
//PHDC related macros
#define CY_PHDC_GET_STATUS_LEN 2
#define CY_PHDC_CLR_FEATURE_WVALUE 0x1
#define CY_PHDC_SET_FEATURE_WVALUE 0x0101

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CyUSBSerial_SDK_Linux/linux/library/Makefile Normal file
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all:
gcc -fPIC -g -Wall -o libcyusb.o -c cyusb.c -I ../../common/header
gcc -fPIC -g -Wall -o libcyuart.o -c cyuart.c -I ../../common/header
gcc -fPIC -g -Wall -o libcyi2c.o -c cyi2c.c -I ../../common/header
gcc -fPIC -g -Wall -o libcyspi.o -c cyspi.c -I ../../common/header
gcc -fPIC -g -Wall -o libcyphdc.o -c cyphdc.c -I ../../common/header
gcc -fPIC -g -Wall -o libcyjtag.o -c cyjtag.c -I ../../common/header
gcc -fPIC -g -Wall -o libcymisc.o -c cymisc.c -I ../../common/header
gcc -shared -g -Wl,-soname,libcyusbserial.so -o libcyusbserial.so.1 libcyusb.o libcyuart.o libcyi2c.o libcyspi.o libcyphdc.o libcyjtag.o libcymisc.o -l usb-1.0
cp libcyusbserial.so.1 /usr/local/lib
ln -sf /usr/local/lib/libcyusbserial.so.1 /usr/local/lib/libcyusbserial.so
ldconfig
rm -f libcyusb.o libcyuart.o libcyspi.o libcyi2c.o libcyphdc.o libcyjtag.o libcymisc.o
clean:
rm -f libcyusbserial.so libcyusbserial.so.1
help:
@echo 'make would compile and create the library and create a link'
@echo 'make clean would remove the library and the soft link to the library (soname)'

29
CyUSBSerial_SDK_Linux/linux/library/README.txt Normal file
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========================================================================================
Cypress Semiconductor Corporation
CyUSB Serial library.
=========================================================================================
Pre-requisite:
1. libusb-1.0.9 is required for compilation and functioning of the APIs in the library.
2. GNU Make and the GCC tool-chain are used for the build process.
Installation steps:
1.cd to the main directory where library source files are extracted and type
'sudo make'
2.This will generate shared library libcyusbserial.so.1 and its soft link libcyusbserial.so.
Both of them will be copied/installed to /usr/local/lib.
3.Application can link and start using the library.
Changing USB device node permission:
**Note:
By default the USB device node created in linux do not have read/write permission
for normal user. In order to make the USB device node accessable, copy 90-cyusb.rules
which is inside the library folder of release package to /etc/udev/rules.d folder (Default VID mentioned is Cypress VID
which is 0x4B4, if VID is changed then update it in ATTR{idVendor} section of rules file).

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CyUSBSerial_SDK_Linux/linux/library/cyi2c.c Normal file
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/*
* I2C routines of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CyUSBCommon.h"
#pragma pack(1)
typedef struct
{
UINT32 frequency; /* Frequency of operation. Only valid values are
100KHz and 400KHz. */
UINT8 sAddress; /* Slave address to be used when in slave mode. */
BOOL isMsbFirst; /* Whether to transmit most significant bit first. */
BOOL isMaster; /* Whether to block is to be configured as a master:
CyTrue - The block functions as I2C master;
CyFalse - The block functions as I2C slave. */
BOOL sIgnore; /* Ignore general call in slave mode. */
BOOL clockStretch; /* Wheteher to stretch clock in case of no FIFO availability. */
BOOL isLoopback; /* Whether to loop back TX data to RX. Valid only
for debug purposes. */
UCHAR reserved[6]; /*Reserved for future use*/
} CyUsI2cConfig_t;
#pragma pack()
#ifdef CY_I2C_ENABLE_PRECISE_TIMING
struct timeval startTimeWrite, endTimeWrite, startTimeRead, endTimeRead;
//Timer helper functions for proper timing
void startI2cTick (bool isWrite) {
if (isWrite)
gettimeofday (&startTimeWrite, NULL);
else
gettimeofday (&startTimeRead, NULL);
}
UINT32 getI2cLapsedTime (bool isWrite){
signed int currentTime_sec, currentTime_usec, currentTime;
if (isWrite){
gettimeofday (&endTimeWrite, NULL);
currentTime_sec = (endTimeWrite.tv_sec - startTimeWrite.tv_sec) * 1000;
currentTime_usec = ((endTimeWrite.tv_usec - startTimeWrite.tv_usec)) / 1000;
currentTime = currentTime_sec + currentTime_usec;
return (unsigned int)currentTime;
}
else{
gettimeofday (&endTimeRead, NULL);
currentTime_sec = (endTimeRead.tv_sec - startTimeRead.tv_sec) * 1000;
currentTime_usec = ((endTimeRead.tv_usec - startTimeRead.tv_usec)) / 1000;
currentTime = currentTime_sec + currentTime_usec;
return (unsigned int)currentTime;
}
}
#endif
CY_RETURN_STATUS handleI2cError (UINT8 i2cStatus){
if (i2cStatus & CY_I2C_NAK_ERROR_BIT){
CY_DEBUG_PRINT_ERROR ("CY:Error Nacked by device ...Function is %s\n", __func__);
return CY_ERROR_I2C_NAK_ERROR;
}
if (i2cStatus & CY_I2C_BUS_ERROR_BIT){
CY_DEBUG_PRINT_ERROR ("CY:Error bus error occured... Function is %s\n", __func__);
return CY_ERROR_I2C_BUS_ERROR;
}
if (i2cStatus & CY_I2C_ARBITRATION_ERROR_BIT){
CY_DEBUG_PRINT_ERROR ("CY:Error Arbitration error occured.. Function is %s\n", __func__);
return CY_ERROR_I2C_ARBITRATION_ERROR;
}
if (i2cStatus & CY_I2C_STOP_BIT_ERROR){
CY_DEBUG_PRINT_ERROR ("CY:Error Stop bit set by master..Function is %s\n", __func__);
return CY_ERROR_I2C_STOP_BIT_SET;
}
else {
//We should never hit this case!!!!
CY_DEBUG_PRINT_ERROR ("CY:Unknown error..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
//Used internally by read and write API to check if data is received at the I2C end.
CY_RETURN_STATUS CyI2cGetStatus (CY_HANDLE handle, bool mode, UCHAR *i2cStatus);
CY_RETURN_STATUS waitForNotification (CY_HANDLE handle, UINT16 *bytesPending, UINT32 ioTimeout);
/*
This API gets the current I2C config
for the particluar interface of the device
*/
CY_RETURN_STATUS CyGetI2cConfig (
CY_HANDLE handle,
CY_I2C_CONFIG *i2cConfig
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
CyUsI2cConfig_t localI2cConfig;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT16 scbIndex = 0;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (i2cConfig == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_I2C) {
CY_DEBUG_PRINT_ERROR ("CY:Error opened device is not i2c ..Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
scbIndex = device->interfaceNum;
if (scbIndex > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_I2C_GET_CONFIG_CMD;
wValue = (scbIndex << CY_SCB_INDEX_POS);
wIndex = 0x00;
wLength = CY_I2C_CONFIG_LENGTH;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)&localI2cConfig, wLength, ioTimeout);
if (rStatus == CY_I2C_CONFIG_LENGTH){
CY_DEBUG_PRINT_INFO ("CY: Read I2C config ...size is %d \n", rStatus);
i2cConfig->frequency = localI2cConfig.frequency;
i2cConfig->slaveAddress = localI2cConfig.sAddress;
i2cConfig->isMaster = localI2cConfig.isMaster;
i2cConfig->isClockStretch = localI2cConfig.clockStretch;
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
CY_DEBUG_PRINT_ERROR ("CY: Device Disconnected ....Function is %s\n", __func__);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Error time out ....Function is %s\n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in doing I2C read ...libusb error is %d function is %s!\n", rStatus, __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This API sets I2C config of the device for that
interface
*/
CY_RETURN_STATUS CySetI2cConfig (
CY_HANDLE handle,
CY_I2C_CONFIG *i2cConfig
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
CyUsI2cConfig_t localI2cConfig;
int rStatus;
CY_DEVICE *device = NULL;
libusb_device_handle *devHandle;
UINT16 scbIndex = 0;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (i2cConfig == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
if (i2cConfig->frequency < 1000 || i2cConfig->frequency > 400000){
CY_DEBUG_PRINT_ERROR ("CY:Error frequency trying to set in out of ..range Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
if ((i2cConfig->slaveAddress % 2) != 0){
CY_DEBUG_PRINT_ERROR ("CY:Error slave address needs to even..Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
scbIndex = device->interfaceNum;
if (device->deviceType != CY_TYPE_I2C) {
CY_DEBUG_PRINT_ERROR ("CY:Error opened device is not i2c ..Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (scbIndex > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_I2C_SET_CONFIG_CMD;
wValue = (scbIndex << CY_SCB_INDEX_POS);
wIndex = 0x00;
wLength = CY_I2C_CONFIG_LENGTH;
//We need to pass entire 16 bytes config structure to firmware
//but we will not expose all the structure elements to user.
//so filling some of the values.
memset (&localI2cConfig, 0, CY_I2C_CONFIG_LENGTH);
localI2cConfig.frequency = i2cConfig->frequency;
localI2cConfig.sAddress = i2cConfig->slaveAddress;
localI2cConfig.isMaster = i2cConfig->isMaster;
localI2cConfig.clockStretch = i2cConfig->isClockStretch;
localI2cConfig.isMsbFirst = 1;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)&localI2cConfig, wLength, ioTimeout);
if (rStatus == CY_I2C_CONFIG_LENGTH){
CY_DEBUG_PRINT_INFO ("CY: Setting I2C config successful ...\n");
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
CY_DEBUG_PRINT_ERROR ("CY: Device Disconnected ....Function is %s\n", __func__);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Error time out ....Function is %s\n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in doing I2C read ...libusb error is %d function is %s!\n", rStatus, __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This API reads I2C data from the specified interface of the device
interface
*/
CY_RETURN_STATUS CyI2cRead (
CY_HANDLE handle,
CY_I2C_DATA_CONFIG *i2cDataConfig,
CY_DATA_BUFFER *readBuffer,
UINT32 ioTimeout
)
{
int rStatus;
CY_DEVICE *device = NULL;
libusb_device_handle *devHandle;
UINT16 wValue = 0, wIndex, wLength, bytesPending = 0;
UINT8 bmRequestType, bmRequest;
UCHAR i2cStatus[CY_I2C_GET_STATUS_LEN];
UINT16 scbIndex = 0;
bool mode = CY_I2C_MODE_READ;
UINT32 elapsedTime;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if ((readBuffer == NULL) || (readBuffer->buffer == NULL) || (readBuffer->length == 0)){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
readBuffer->transferCount = 0;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_I2C) {
CY_DEBUG_PRINT_ERROR ("CY:Error opened device is not i2c ..Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (pthread_mutex_trylock (&device->readLock) == 0){
scbIndex = device->interfaceNum;
if (scbIndex > 0)
scbIndex = 1;
i2cDataConfig->slaveAddress = ((i2cDataConfig->slaveAddress & 0x7F) | (scbIndex << 7));
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_I2C_READ_CMD;
wValue = ((i2cDataConfig->isStopBit) | (i2cDataConfig->isNakBit << 1));
wValue |= (((i2cDataConfig->slaveAddress) << 8));
wIndex = readBuffer->length;
wLength = 0;
rStatus = CyI2cGetStatus (handle, mode, (UCHAR *)i2cStatus);
if (rStatus == CY_SUCCESS)
{
if ((i2cStatus[0] & CY_I2C_ERROR_BIT)){
CY_DEBUG_PRINT_ERROR ("CY:Error device busy ... function is %s \n", __func__);
pthread_mutex_unlock (&device->readLock);
return CY_ERROR_I2C_DEVICE_BUSY;
}
}
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == LIBUSB_ERROR_NO_DEVICE){
CY_DEBUG_PRINT_ERROR ("CY:Error device disconnected ... \n");
pthread_mutex_unlock (&device->readLock);
return CY_ERROR_DEVICE_NOT_FOUND;
}
if (rStatus < 0){
CY_DEBUG_PRINT_ERROR ("CY:Error in sending Read vendor command ... Libusb Error is %d .. Function is %s \n", rStatus, __func__);
pthread_mutex_unlock (&device->readLock);
return CY_ERROR_I2C_DEVICE_BUSY;
}
//Hoping that previous calls do not take much time!!
#ifdef CY_I2C_ENABLE_PRECISE_TIMING
startI2cTick(false);
#endif
rStatus = libusb_bulk_transfer (devHandle, device->inEndpoint, readBuffer->buffer, readBuffer->length,
(int*)&readBuffer->transferCount, ioTimeout);
#ifdef CY_I2C_ENABLE_PRECISE_TIMING
elapsedTime = getI2cLapsedTime(false);
//Giving an extra 10 msec to notification to findout the status
ioTimeout = (ioTimeout - elapsedTime);
if (ioTimeout == 0)
ioTimeout = 10;
#endif
if (rStatus == LIBUSB_SUCCESS){
CY_DEBUG_PRINT_INFO ("CY: Successfully read i2c data.. %d bytes Read ...\n", readBuffer->transferCount);
bytesPending = readBuffer->length;
rStatus = waitForNotification (handle, &bytesPending, ioTimeout);
if (rStatus)
readBuffer->transferCount = (readBuffer->length - bytesPending);
else
readBuffer->transferCount = readBuffer->length;
pthread_mutex_unlock (&device->readLock);
return rStatus;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Timeout error ..Function is %s\n", __func__);
pthread_mutex_unlock (&device->readLock);
return CY_ERROR_IO_TIMEOUT;
}
else if (rStatus == LIBUSB_ERROR_PIPE){
CY_DEBUG_PRINT_INFO ("Pipe Error \n");
rStatus = CyResetPipe (handle, device->outEndpoint);
if (rStatus != CY_SUCCESS){
CY_DEBUG_PRINT_ERROR ("Error in reseting the pipe \n");
}
else
CY_DEBUG_PRINT_INFO ("Reset pipe succeded \n");
rStatus = CyI2cGetStatus (handle, mode, (UCHAR *)i2cStatus);
if (rStatus == CY_SUCCESS)
{
CyI2cReset (handle, mode);
rStatus = handleI2cError (i2cStatus[0]);
pthread_mutex_unlock (&device->readLock);
return rStatus;
}
else {
pthread_mutex_unlock (&device->readLock);
return CY_ERROR_I2C_DEVICE_BUSY;
}
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
pthread_mutex_unlock (&device->readLock);
CY_DEBUG_PRINT_ERROR ("CY: Device Disconnected ....Function is %s\n", __func__);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
pthread_mutex_unlock (&device->readLock);
CY_DEBUG_PRINT_ERROR ("CY:Error time out ....Function is %s\n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
pthread_mutex_unlock (&device->readLock);
CY_DEBUG_PRINT_ERROR ("CY: Error in doing I2C read ...libusb error is %d function is %s!\n", rStatus, __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
else{
CY_DEBUG_PRINT_ERROR ("CY: Error API busy in servicing previous request... function is %s!\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This API writes I2C data into the specified interface of the device
*/
CY_RETURN_STATUS CyI2cWrite (
CY_HANDLE handle,
CY_I2C_DATA_CONFIG *i2cDataConfig,
CY_DATA_BUFFER *writeBuffer,
UINT32 ioTimeout
)
{
int rStatus;
UCHAR i2cStatus[CY_I2C_GET_STATUS_LEN];
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT16 wValue = 0, wIndex, wLength, bytesPending = 0;
UINT8 bmRequestType, bmRequest;
UINT16 scbIndex = 0;
BOOL mode = CY_I2C_MODE_WRITE;
UINT32 elapsedTime;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if ((writeBuffer == NULL) || (writeBuffer->buffer == NULL) || (writeBuffer->length == 0)){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
writeBuffer->transferCount = 0;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
scbIndex = device->interfaceNum;
if (device->deviceType != CY_TYPE_I2C){
CY_DEBUG_PRINT_ERROR ("CY:Error opened device is not i2c ..Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (pthread_mutex_trylock (&device->writeLock) == 0){
if (scbIndex > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_I2C_WRITE_CMD;
i2cDataConfig->slaveAddress = ((i2cDataConfig->slaveAddress & 0x7F) | (scbIndex << 7));
wValue = ((i2cDataConfig->isStopBit));
wValue |= (((i2cDataConfig->slaveAddress) << 8));
wIndex = (UINT16)(writeBuffer->length);
wLength = 0;
CY_DEBUG_PRINT_INFO ("wValue is %x \n", wValue);
//Send I2C write vendor command before actually sending the data over bulk ep
rStatus = CyI2cGetStatus (handle, mode, (UCHAR *)i2cStatus);
if (rStatus == CY_SUCCESS)
{
if ((i2cStatus[0] & CY_I2C_ERROR_BIT)){
CY_DEBUG_PRINT_ERROR ("CY:Error ... Device busy ... function is %s \n", __func__);
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_I2C_DEVICE_BUSY;
}
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE){
CY_DEBUG_PRINT_ERROR ("CY:Error device not found \n");
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_DEVICE_NOT_FOUND;
}
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == LIBUSB_ERROR_NO_DEVICE){
CY_DEBUG_PRINT_ERROR ("CY:Error device not found \n");
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_DEVICE_NOT_FOUND;
}
if (rStatus < 0){
CY_DEBUG_PRINT_ERROR ("CY:Error in sending write vendor command ... Libusb Error is %d \n", rStatus);
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_I2C_DEVICE_BUSY;
}
//After vendor command is sent send the actual data to be sent to i2c devic
#ifdef CY_I2C_ENABLE_PRECISE_TIMING
startI2cTick(true);
#endif
rStatus = libusb_bulk_transfer (devHandle, device->outEndpoint, writeBuffer->buffer, writeBuffer->length,
(int*)&(writeBuffer->transferCount), ioTimeout);
#ifdef CY_I2C_ENABLE_PRECISE_TIMING
elapsedTime = getI2cLapsedTime(true);
ioTimeout = (ioTimeout - elapsedTime);
//Giving an extra 10 msec to notification to findout the status
if (ioTimeout == 0)
ioTimeout = 10;
#endif
//Once the data is sent to usbserial, check if it was actually written to i2c device.
if (rStatus == LIBUSB_SUCCESS){
CY_DEBUG_PRINT_INFO ("CY: Successfully written i2c data.. %d bytes written ...\n", writeBuffer->transferCount);
bytesPending = writeBuffer->length;
rStatus = waitForNotification (handle, &bytesPending, ioTimeout);
if (rStatus)
writeBuffer->transferCount = (writeBuffer->length - bytesPending);
else
writeBuffer->transferCount = writeBuffer->length;
pthread_mutex_unlock (&device->writeLock);
return rStatus;
}
//Transaction is stallled when we hit some I2C error while the transfer
//was going on. After we hit this error clear stall and check why we hit this by
//CyGetStatus.
else if (rStatus == LIBUSB_ERROR_PIPE){
CY_DEBUG_PRINT_INFO ("CY:Pipe Error ... Function is %s\n", __func__);
rStatus = CyResetPipe (handle, device->outEndpoint);
if (rStatus != CY_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in reseting the pipe ..Function is %s\n", __func__);
}
else
CY_DEBUG_PRINT_INFO ("Reset pipe succeded \n");
rStatus = CyI2cGetStatus (handle, mode, (UCHAR *)i2cStatus);
if (rStatus == CY_SUCCESS)
{
CyI2cReset (handle, mode);
rStatus = handleI2cError (i2cStatus[0]);
pthread_mutex_unlock (&device->writeLock);
return rStatus;
}
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
CY_DEBUG_PRINT_ERROR ("CY: Device Disconnected ....Function is %s\n", __func__);
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Error time out ....Function is %s\n", __func__);
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_IO_TIMEOUT;
}
else{
CY_DEBUG_PRINT_ERROR ("CY: Error in doing I2C read ...libusb error is %d function is %s!\n", rStatus, __func__);
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_REQUEST_FAILED;
}
}
else{
CY_DEBUG_PRINT_ERROR ("CY:API busy with servicing previous request... function is %s!\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
return CY_ERROR_REQUEST_FAILED;
}
/*
This Api gets the current status of the I2C data transaction
*/
CY_RETURN_STATUS CyI2cGetStatus (
CY_HANDLE handle,
bool mode,
UCHAR *i2cStatus
)
{
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT16 wValue, wIndex, wLength, bmRequestType, bmRequest;;
UINT16 scbIndex = 0;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
if (i2cStatus == NULL)
return CY_ERROR_INVALID_PARAMETER;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_I2C) {
CY_DEBUG_PRINT_ERROR ("CY:Error opened device is not i2c .. \n");
return CY_ERROR_REQUEST_FAILED;
}
scbIndex = device->interfaceNum;
if (scbIndex > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_I2C_GET_STATUS_CMD;
wValue = ((scbIndex << CY_SCB_INDEX_POS) | mode);
wIndex = 0;
wLength = CY_I2C_GET_STATUS_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,wValue, wIndex, (UCHAR*)i2cStatus, wLength, ioTimeout);
if (rStatus < CY_I2C_GET_STATUS_LEN){
CY_DEBUG_PRINT_INFO ("CY:Error in sending I2C Get Status command...Libusb error is %d\n", rStatus);
return rStatus;
}
return CY_SUCCESS;
}
/*
This Api resets the I2C module
*/
CY_RETURN_STATUS CyI2cReset (
CY_HANDLE handle,
BOOL resetMode
)
{
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT16 wValue, wIndex, wLength, bmRequestType, bmRequest;
UINT16 scbIndex = 0;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_I2C) {
CY_DEBUG_PRINT_ERROR ("CY:Error opened device is not i2c .. \n");
return CY_ERROR_REQUEST_FAILED;
}
scbIndex = device->interfaceNum;
if (scbIndex > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_I2C_RESET_CMD;
wValue = ((scbIndex << CY_SCB_INDEX_POS) | resetMode );
wIndex = 0;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus < 0){
CY_DEBUG_PRINT_ERROR ("CY:Error in sending I2C Reset command ..libusb error is %d\n", rStatus);
return CY_ERROR_REQUEST_FAILED;
}
return CY_SUCCESS;
}
static void LIBUSB_CALL i2c_notification_cb(struct libusb_transfer *transfer)
{
UINT32 *completed = transfer->user_data;
*completed = 1;
}
CY_RETURN_STATUS waitForNotification (CY_HANDLE handle, UINT16 *bytesPending, UINT32 ioTimeout){
UINT32 transferCompleted = 0, length = CY_I2C_EVENT_NOTIFICATION_LEN;
CY_DEVICE *device;
libusb_device_handle *devHandle;
struct libusb_transfer *transfer;
CY_RETURN_STATUS errorStatus, rStatus;
UCHAR i2cStatus[CY_I2C_EVENT_NOTIFICATION_LEN];
struct timeval time;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
transfer = libusb_alloc_transfer(0);
if (transfer == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error in allocating trasnfer \n");
errorStatus = CY_ERROR_ALLOCATION_FAILED;
(*bytesPending) = 0;
return errorStatus;
//callbackFn (errorStatus, 0);
}
libusb_fill_interrupt_transfer (transfer, devHandle, device->interruptEndpoint, i2cStatus, length,
i2c_notification_cb, &transferCompleted, ioTimeout);
if (libusb_submit_transfer (transfer)){
CY_DEBUG_PRINT_ERROR ("CY:Error in submitting interrupt transfer ...\n");
libusb_cancel_transfer (transfer);
libusb_free_transfer (transfer);
(*bytesPending) = 0;
//callbackFn (CY_ERROR_REQUEST_FAILED, 0);
return CY_ERROR_REQUEST_FAILED;
}
time.tv_sec = 0;
time.tv_usec = 50;//polling timeout.
while (transferCompleted == 0){
libusb_handle_events_timeout (NULL, &time);
}
transferCompleted = 0;
if (transfer->status == LIBUSB_TRANSFER_COMPLETED){
CY_DEBUG_PRINT_INFO ("CY:Info successfully recieved data on interrupt pipe length is %d \n", transfer->actual_length);
if (i2cStatus[0] & 0x80){ //Error notification is for write
if ((i2cStatus[0] & CY_I2C_ERROR_BIT)){
CY_DEBUG_PRINT_INFO ("Bytes pending is %x %x %x", i2cStatus[0], i2cStatus[1], i2cStatus[2]);
if (i2cStatus[0] & 0x1E){
//There was some error, so reset the i2c module and usb module
//of the device, so branch out of the loop(Check below for the errors reported).
rStatus = CyI2cReset (device, CY_I2C_MODE_WRITE);
if (rStatus != CY_SUCCESS)
CY_DEBUG_PRINT_INFO ("CY:i2c reset failed \n");
//Report the amount of byte that were actually written
memcpy(bytesPending, &i2cStatus[1], 2);
errorStatus = handleI2cError (i2cStatus[0]);
}
}
else
errorStatus = CY_SUCCESS;
}
else //Error notification is for read
{
if ((i2cStatus[0] & CY_I2C_ERROR_BIT)){
CY_DEBUG_PRINT_INFO ("Bytes pending is %x %x %x", i2cStatus[0], i2cStatus[1], i2cStatus[2]);
if (i2cStatus[0] & 0x1E){
rStatus = CyI2cReset (device, CY_I2C_MODE_READ);
if (rStatus != CY_SUCCESS)
CY_DEBUG_PRINT_INFO ("CY:i2c reset failed \n");
//Report the amount of byte that were actually written
memcpy(bytesPending, &i2cStatus[1], 2);
errorStatus = handleI2cError (i2cStatus[0]);
}
}
else
errorStatus = CY_SUCCESS;
}
libusb_free_transfer (transfer);
return errorStatus;
}
else{
libusb_cancel_transfer (transfer);
if (transfer->status == LIBUSB_TRANSFER_TIMED_OUT){
CY_DEBUG_PRINT_ERROR ("CY:Error Timeout in getting i2c transfer status ....\n");
CyI2cGetStatus (handle, 1, (UCHAR *)&errorStatus);
errorStatus = CY_ERROR_IO_TIMEOUT;
}
if (transfer->status == LIBUSB_TRANSFER_OVERFLOW){
CY_DEBUG_PRINT_ERROR ("CY:Error buffer overFlow in i2c transfer status ....\n");
errorStatus = CY_ERROR_BUFFER_OVERFLOW;
}
if (transfer->status != LIBUSB_TRANSFER_COMPLETED || transfer->status != LIBUSB_TRANSFER_COMPLETED){
CY_DEBUG_PRINT_ERROR ("CY:Error in i2c transfer status ... Libusb transfer error is %d \n", transfer->status);
errorStatus = CY_ERROR_REQUEST_FAILED;
}
libusb_free_transfer (transfer);
return CY_ERROR_REQUEST_FAILED;
}
}

247
CyUSBSerial_SDK_Linux/linux/library/cyjtag.c Normal file
View File

@@ -0,0 +1,247 @@
/*
* JTAG routines of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CyUSBCommon.h"
/*
* This API enables the Jtag module
*/
CY_RETURN_STATUS CyJtagEnable (
CY_HANDLE handle
)
{
UINT16 wValue, wIndex, wLength;
UINT16 bmRequestType, bmRequest;
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_JTAG) {
CY_DEBUG_PRINT_ERROR ("CY:Error device type is not jtag ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_JTAG_ENABLE_CMD;
wValue = 0x00;
wIndex = 0;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus >= 0){
CY_DEBUG_PRINT_INFO ("CY: JTAG enable successfully \n");
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
* This API disables the Jtag module
*/
CY_RETURN_STATUS CyJtagDisable (
CY_HANDLE handle
)
{
UINT16 wValue, wIndex, wLength;
UINT16 bmRequestType, bmRequest;
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_JTAG) {
CY_DEBUG_PRINT_ERROR ("CY:Error device type is not jtag ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_JTAG_DISABLE_CMD;
wValue = 0x00;
wIndex = 0;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus >= 0){
CY_DEBUG_PRINT_INFO ("CY: JTAG disable successfully \n");
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error while enabling JTAG ..\n");
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY:Error while enabling JTAG ...libusb error is %d function is %s!\n", rStatus, __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
* This API is used to do jtag write
*/
CY_RETURN_STATUS CyJtagWrite (
CY_HANDLE handle,
CY_DATA_BUFFER *writeBuffer,
UINT32 ioTimeout
)
{
int rStatus = 0;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT16 wValue, wIndex, wLength;
UINT16 bmRequestType, bmRequest;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if ((writeBuffer == NULL) || (writeBuffer->buffer == NULL) || (writeBuffer->length == 0)){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_JTAG) {
CY_DEBUG_PRINT_ERROR ("CY:Error device type is not jtag ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_JTAG_WRITE_CMD;
wValue = writeBuffer->length;
wIndex = 0;
wLength = 0;
writeBuffer->transferCount = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus < 0){
CY_DEBUG_PRINT_ERROR ("CY: JTAG Vendor command failed %d...function is %s \n", rStatus, __func__);
return CY_ERROR_REQUEST_FAILED;
}
rStatus = libusb_bulk_transfer (devHandle, CY_JTAG_OUT_EP, writeBuffer->buffer, writeBuffer->length,
(int*)&(writeBuffer->transferCount), ioTimeout);
if ((rStatus == CY_SUCCESS)) {
CY_DEBUG_PRINT_ERROR ("CY: Number of bytes written is .... %d \n", writeBuffer->transferCount);
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:TimeOut error ...Function is %s %d\n", __func__, writeBuffer->transferCount);
return CY_ERROR_IO_TIMEOUT;
}
else if (rStatus == LIBUSB_ERROR_PIPE){
CY_DEBUG_PRINT_ERROR ("CY:Pipe error Function is %s \n", __func__);
CyResetPipe (handle, CY_JTAG_OUT_EP);
return CY_ERROR_PIPE_HALTED;
}
else if (rStatus == LIBUSB_ERROR_OVERFLOW){
CY_DEBUG_PRINT_ERROR ("CY:Error Buffer Overflow..Function is %s \n", __func__);
return CY_ERROR_BUFFER_OVERFLOW;
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
CY_DEBUG_PRINT_ERROR ("CY: Device Disconnected ....Function is %s \n", __func__);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in Function %s...Libusb Error is %d !\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This API is used to read JTAG data from device interface
*/
CY_RETURN_STATUS CyJtagRead (
CY_HANDLE handle,
CY_DATA_BUFFER *readBuffer,
UINT32 ioTimeout
)
{
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT16 wValue, wIndex, wLength;
UINT16 bmRequestType, bmRequest;
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_JTAG_READ_CMD;
wValue = readBuffer->length;
wIndex = 0;
wLength = 0;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if ((readBuffer == NULL) || (readBuffer->buffer == NULL) || (readBuffer->length == 0)){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_JTAG) {
CY_DEBUG_PRINT_ERROR ("CY:Error device type is not jtag ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
readBuffer->transferCount = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus < 0){
CY_DEBUG_PRINT_INFO ("CY: JTAG Vendor Command failed %d.. Function is %s \n", rStatus, __func__);
return CY_ERROR_REQUEST_FAILED;
}
rStatus = libusb_bulk_transfer (devHandle, CY_JTAG_IN_EP, readBuffer->buffer, readBuffer->length,
(int*)&(readBuffer->transferCount), ioTimeout);
if (rStatus == CY_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY: Number of bytes read is .... %d \n", readBuffer->transferCount);
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:TimeOut error ...Function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else if (rStatus == LIBUSB_ERROR_PIPE){
CY_DEBUG_PRINT_ERROR ("CY:Pipe error Function is %s \n", __func__);
CyResetPipe (handle, CY_JTAG_IN_EP);
return CY_ERROR_PIPE_HALTED;
}
else if (rStatus == LIBUSB_ERROR_OVERFLOW){
CY_DEBUG_PRINT_ERROR ("CY:Error Buffer Overflow..Function is %s \n", __func__);
return CY_ERROR_BUFFER_OVERFLOW;
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
CY_DEBUG_PRINT_ERROR ("CY: Device Disconnected ....Function is %s \n", __func__);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function is %s ...Libusb Error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}

584
CyUSBSerial_SDK_Linux/linux/library/cymisc.c Normal file
View File

@@ -0,0 +1,584 @@
/*
* Miscellaneous routines of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CyUSBCommon.h"
typedef struct NOTIFICATION_CB_PARAM{
CY_HANDLE handle;
CY_EVENT_NOTIFICATION_CB_FN notificationCbFn;
}NOTIFICATION_CB_PARAM;
/*
This API is used to Read the Bootloder version
*/
CY_RETURN_STATUS CyGetFirmwareVersion(
CY_HANDLE handle,
CY_FIRMWARE_VERSION *firmwareVersion
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_GET_VERSION_CMD;
wValue = 0x00;
wIndex = 0x00;
wLength = CY_GET_FIRMWARE_VERSION_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)firmwareVersion, wLength, ioTimeout);
if (rStatus > 0){
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
The API resets the device
*/
CYWINEXPORT CY_RETURN_STATUS WINCALLCONVEN CyResetDevice (
CY_HANDLE handle /*Valid device handle*/
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle \n");
return CY_ERROR_INVALID_HANDLE;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_DEVICE_RESET_CMD;
wValue = 0xA6B6;
wIndex = 0xADBA;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
//return buffer will tell the status of the command
if (rStatus == LIBUSB_SUCCESS)
return CY_SUCCESS;
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
CYWINEXPORT CY_RETURN_STATUS WINCALLCONVEN CySetGpioValue (
CY_HANDLE handle, /*Valid device handle*/
UINT8 gpioNumber, /*GPIO configuration value*/
UINT8 value /*Value that needs to be set*/
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest, buffer[CY_GPIO_SET_LEN];
int rStatus;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (value)
value = 1;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_GPIO_SET_VALUE_CMD;
wValue = gpioNumber;
wIndex = value;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, buffer, wLength, ioTimeout);
if (rStatus >= 0){
CY_DEBUG_PRINT_INFO ("CY: Get Configuration of GPIO succedded...size is %d \n", rStatus);
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
CYWINEXPORT CY_RETURN_STATUS WINCALLCONVEN CyGetGpioValue (
CY_HANDLE handle, /*Valid device handle*/
UINT8 gpioNumber, /*GPIO configuration value*/
UINT8 *value /*Value that needs to be set*/
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest, buffer[CY_GPIO_GET_LEN];
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_GPIO_GET_VALUE_CMD;
wValue = gpioNumber;
wIndex = 0x00;
wLength = CY_GPIO_GET_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, buffer, wLength, ioTimeout);
if (rStatus == CY_GPIO_GET_LEN){
CY_DEBUG_PRINT_INFO ("CY: Get GPIO Configuration succedded...size is %d \n", rStatus);
//return buffer will tell the status of the command
if (buffer[0] == 0){
(*value) = buffer[1];
return CY_SUCCESS;
}
else
return CY_ERROR_REQUEST_FAILED;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
static void LIBUSB_CALL uart_notification_cb(struct libusb_transfer *transfer)
{
UINT32 *completed = transfer->user_data;
*completed = 1;
}
void* uartSetEventNotifcation (void *inputParameters)
{
int rStatus, transferCompleted = 0, length = CY_UART_EVENT_NOTIFICATION_LEN;
CY_DEVICE *device;
libusb_device_handle *devHandle;
struct libusb_transfer *transfer;
UINT16 errorStatus = 0;
UCHAR uartStatus[CY_UART_EVENT_NOTIFICATION_LEN];
struct timeval time;
CY_EVENT_NOTIFICATION_CB_FN callbackFn;
NOTIFICATION_CB_PARAM *cbParameters = (NOTIFICATION_CB_PARAM*)inputParameters;
callbackFn = cbParameters->notificationCbFn;
device = (CY_DEVICE *)cbParameters->handle;
devHandle = device->devHandle;
callbackFn = cbParameters->notificationCbFn;
device->uartTransfer = transfer = libusb_alloc_transfer(0);
if (transfer == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error in allocating trasnfer \n");
errorStatus |= CY_ERROR_EVENT_FAILED_BIT;
callbackFn(errorStatus);
goto END;
}
while (device->uartCancelEvent == false){
libusb_fill_interrupt_transfer (transfer, devHandle, device->interruptEndpoint, uartStatus, length,
uart_notification_cb, &transferCompleted, CY_EVENT_NOTIFICATION_TIMEOUT);
rStatus = libusb_submit_transfer (transfer);
if (rStatus){
CY_DEBUG_PRINT_ERROR ("CY:Error submitting uart interrupt token ... Libusb error is %d\n", rStatus);
errorStatus |= CY_ERROR_EVENT_FAILED_BIT;
callbackFn(errorStatus);
break;
}
time.tv_sec = 0;
time.tv_usec = 50;//polling timeout.
while (transferCompleted == 0){
libusb_handle_events_timeout (NULL, &time);
}
transferCompleted = 0;
if (transfer->status == LIBUSB_TRANSFER_COMPLETED){
CY_DEBUG_PRINT_INFO ("Successfully read and recieved data %d \n", transfer->actual_length);
memcpy (&errorStatus, &uartStatus[8], 2);
printf ("%x %x ", uartStatus[8], uartStatus[9]);
callbackFn (errorStatus);
errorStatus = 0;
}
else{
errorStatus |= CY_ERROR_EVENT_FAILED_BIT;
if (device->uartCancelEvent == false){
CY_DEBUG_PRINT_ERROR ("CY:Error uart interrupt thread encountered error... Libusb transmission error is %d \n", transfer->status);
device->uartThreadId = 0;
callbackFn(errorStatus);
}
break;
}
}
CY_DEBUG_PRINT_INFO ("Exiting notification thread \n");
libusb_free_transfer (transfer);
END:
free (inputParameters);
return NULL;
}
static void LIBUSB_CALL spi_notification_cb(struct libusb_transfer *transfer)
{
UINT32 *completed = transfer->user_data;
*completed = 1;
}
void* spiSetEventNotifcation (void *inputParameters)
{
int transferCompleted = 0, length = CY_SPI_EVENT_NOTIFICATION_LEN;
CY_DEVICE *device;
libusb_device_handle *devHandle;
struct libusb_transfer *transfer;
UINT8 spiStatus = 0;
UINT16 errorStatus = 0;
struct timeval time;
CY_EVENT_NOTIFICATION_CB_FN callbackFn;
NOTIFICATION_CB_PARAM *cbParameters = (NOTIFICATION_CB_PARAM*)inputParameters;
callbackFn = cbParameters->notificationCbFn;
device = (CY_DEVICE *)cbParameters->handle;
devHandle = device->devHandle;
callbackFn = cbParameters->notificationCbFn;
device->spiTransfer = transfer = libusb_alloc_transfer(0);
if (transfer == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error in allocating trasnfer \n");
errorStatus |= CY_ERROR_EVENT_FAILED_BIT;
callbackFn (errorStatus);
goto END;
}
libusb_fill_interrupt_transfer (transfer, devHandle, device->interruptEndpoint, &spiStatus, length,
spi_notification_cb, &transferCompleted, CY_EVENT_NOTIFICATION_TIMEOUT);
while (device->spiCancelEvent == false){
if (libusb_submit_transfer (transfer)){
CY_DEBUG_PRINT_ERROR ("CY:Error submitting spi interrupt token ... \n");
errorStatus |= CY_ERROR_EVENT_FAILED_BIT;
callbackFn(errorStatus);
break;
}
time.tv_sec = 0;
time.tv_usec = 50;//polling timeout.
while (transferCompleted == 0){
libusb_handle_events_timeout (NULL, &time);
}
transferCompleted = 0;
if (transfer->status == LIBUSB_TRANSFER_COMPLETED){
CY_DEBUG_PRINT_INFO ("Successfully read and recieved data %d \n", transfer->actual_length);
if (spiStatus & CY_SPI_UNDERFLOW_ERROR){
errorStatus |= (CY_SPI_TX_UNDERFLOW_BIT);
}
if (spiStatus & CY_SPI_BUS_ERROR){
errorStatus |= (CY_SPI_BUS_ERROR_BIT);
}
callbackFn (errorStatus);
errorStatus = 0;
}
else{
spiStatus |= CY_ERROR_EVENT_FAILED_BIT;
if (device->spiCancelEvent == false){
device->spiThreadId = 0;
CY_DEBUG_PRINT_ERROR ("CY:Error spi interrupt thread was cancelled... Libusb transmission error is %d \n", transfer->status);
callbackFn (spiStatus);
}
break;
}
}
libusb_free_transfer (transfer);
END:
free (inputParameters);
pthread_exit (NULL);
return NULL;
}
CYWINEXPORT CY_RETURN_STATUS WINCALLCONVEN CySetEventNotification(
CY_HANDLE handle, /*Valid handle to communicate with device*/
CY_EVENT_NOTIFICATION_CB_FN notificationCbFn /*Call back function in case on error during Uart data transfers*/
)
{
CY_DEVICE *device;
NOTIFICATION_CB_PARAM *args = NULL;
int ret;
pthread_t threadID;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (notificationCbFn == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE*)handle;
pthread_mutex_lock (&device->notificationLock);
args = (NOTIFICATION_CB_PARAM *)malloc (sizeof (NOTIFICATION_CB_PARAM));
args->handle = handle;
args->notificationCbFn = notificationCbFn;
if (device->deviceType == CY_TYPE_SPI){
if (device->spiThreadId != 0) {
CY_DEBUG_PRINT_ERROR ("CY:Error already notification thread exists ... Function is %s \n", __func__);
pthread_mutex_unlock (&device->notificationLock);
return CY_ERROR_STATUS_MONITOR_EXIST;
}
ret = pthread_create (&threadID, NULL, spiSetEventNotifcation, (void *) args);
if (ret == 0){
device->spiThreadId = threadID;
pthread_mutex_unlock (&device->notificationLock);
return CY_SUCCESS;
}
else {
device->spiThreadId = 0;
free (args);
pthread_mutex_unlock (&device->notificationLock);
CY_DEBUG_PRINT_ERROR ("CY:Error creating spi notification thread ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
else if (device->deviceType == CY_TYPE_UART){
if (device->uartThreadId != 0) {
CY_DEBUG_PRINT_ERROR ("CY:Error already notification thread exists ... Function is %s \n", __func__);
pthread_mutex_unlock (&device->notificationLock);
return CY_ERROR_STATUS_MONITOR_EXIST;
}
ret = pthread_create (&threadID, NULL, uartSetEventNotifcation, (void *) args);
if (ret == 0){
device->uartThreadId = threadID;
pthread_mutex_unlock (&device->notificationLock);
return CY_SUCCESS;
}
else {
device->uartThreadId = 0;
free (args);
pthread_mutex_unlock (&device->notificationLock);
CY_DEBUG_PRINT_ERROR ("CY:Error creating uart notification thread ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
else {
CY_DEBUG_PRINT_ERROR ("CY:Error unknown device type ....Function is %s \n", __func__);
pthread_mutex_unlock (&device->notificationLock);
return CY_ERROR_REQUEST_FAILED;
}
}
/*The API is used to cancel the uart Event notification*/
CYWINEXPORT CY_RETURN_STATUS WINCALLCONVEN CyAbortEventNotification(
CY_HANDLE handle /*Valid handle to communicate with device*/
)
{
CY_DEVICE *device;
device = (CY_DEVICE*)handle;
pthread_mutex_lock (&device->notificationLock);
if (device->deviceType == CY_TYPE_UART){
if ((device->uartThreadId == 0)){
CY_DEBUG_PRINT_ERROR ("CY:Error uart event notification not created ....function is %s \n", __func__);
pthread_mutex_unlock (&device->notificationLock);
return CY_ERROR_REQUEST_FAILED;
}
device->uartCancelEvent = true;
libusb_cancel_transfer (device->uartTransfer);
pthread_join (device->uartThreadId, NULL);
device->uartThreadId = 0;
device->uartCancelEvent = false;
pthread_mutex_unlock (&device->notificationLock);
return CY_SUCCESS;
}
else if (device->deviceType == CY_TYPE_SPI){
if ((device->spiThreadId == 0)){
CY_DEBUG_PRINT_ERROR ("CY:Error spi event notification not created ....function is %s \n", __func__);
pthread_mutex_unlock (&device->notificationLock);
return CY_ERROR_REQUEST_FAILED;
}
device->spiCancelEvent = true;
libusb_cancel_transfer (device->spiTransfer);
pthread_join (device->spiThreadId, NULL);
device->spiThreadId = 0;
device->spiCancelEvent = false;
pthread_mutex_unlock (&device->notificationLock);
return CY_SUCCESS;
}
else {
CY_DEBUG_PRINT_ERROR ("CY:Error.. unknown device type ....function is %s \n", __func__);
pthread_mutex_unlock (&device->notificationLock);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
The API is used to programme user flash area
*/
CYWINEXPORT CY_RETURN_STATUS WINCALLCONVEN CyProgUserFlash (
CY_HANDLE handle, /*Valid device handle*/
CY_DATA_BUFFER *progBuffer, /*data buffer containing buffer address, length to write*/
UINT32 flashAddress, /*Address to the data is written*/
UINT32 ioTimeout /*Timeout value of the API*/
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
if ((progBuffer == NULL) || (progBuffer->buffer == NULL))
return CY_ERROR_INVALID_PARAMETER;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_PROG_USER_FLASH_CMD;
wValue = 0;
wIndex = flashAddress;
wLength = progBuffer->length;
CY_DEBUG_PRINT_INFO ("CY:The Length is %d , Value is %d and index is %d\n", wLength, wValue, wIndex);
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, progBuffer->buffer, wLength, ioTimeout);
if (rStatus > 0){
(progBuffer->transferCount) = rStatus;
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
(progBuffer->transferCount) = 0;
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
(progBuffer->transferCount) = 0;
return CY_ERROR_REQUEST_FAILED;
}
}
/*
The API is used to programme user flash area
*/
CYWINEXPORT CY_RETURN_STATUS WINCALLCONVEN CyReadUserFlash (
CY_HANDLE handle, /*Valid device handle*/
CY_DATA_BUFFER *readBuffer, /*data buffer containing buffer address, length to write*/
UINT32 flashAddress, /*Address to the data is written*/
UINT32 ioTimeout /*Timeout value of the API*/
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
if ((readBuffer == NULL) || (readBuffer == NULL))
return CY_ERROR_INVALID_PARAMETER;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_READ_USER_FLASH_CMD;
wValue = 0;
wIndex = flashAddress;
wLength = readBuffer->length;
CY_DEBUG_PRINT_INFO ("CY:The Length is %d , Value is %d and index is %d\n", wLength, wValue, wIndex);
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, readBuffer->buffer, wLength, ioTimeout);
if (rStatus > 0){
(readBuffer->transferCount) = rStatus;
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
(readBuffer->transferCount) = 0;
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
(readBuffer->transferCount) = 0;
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This Api is used to get the signature of the device. It would be CYUS when we are in actual device mode
and CYBL when we are bootloader modeñ
*/
CY_RETURN_STATUS CyGetSignature (
CY_HANDLE handle,
UCHAR *signature
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_GET_SIGNATURE_CMD;
wValue = 0x00;
wIndex = 0x00;
wLength = CY_GET_SIGNATURE_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)signature, wLength, ioTimeout);
if (rStatus > 0){
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}

130
CyUSBSerial_SDK_Linux/linux/library/cyphdc.c Normal file
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@@ -0,0 +1,130 @@
/*
* PHDC routines of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CyUSBCommon.h"
/*
PHDC clear feature
*/
CY_RETURN_STATUS CyPhdcClrFeature (CY_HANDLE handle)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_PHDC_CLR_FEATURE;
wValue = CY_PHDC_CLR_FEATURE_WVALUE;
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == 0)
return CY_SUCCESS;
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
return CY_SUCCESS;
}
/*
PHDC set feature
*/
CY_RETURN_STATUS CyPhdcSetFeature (CY_HANDLE handle)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_PHDC_SET_FEATURE;
wValue = CY_PHDC_SET_FEATURE_WVALUE;
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == 0)
return CY_SUCCESS;
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
PHDC clear feature
*/
CY_RETURN_STATUS CyPhdcGetStatus (CY_HANDLE handle, UINT16 *dataStatus)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_CLASS_INTERFACE_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_PHDC_GET_DATA_STATUS;
wValue = 0x00;
wIndex = device->interfaceNum;
wLength = CY_PHDC_GET_STATUS_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)dataStatus, wLength, ioTimeout);
if (rStatus > 0)
return CY_SUCCESS;
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}

644
CyUSBSerial_SDK_Linux/linux/library/cyspi.c Normal file
View File

@@ -0,0 +1,644 @@
/*
* SPI routines of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CyUSBCommon.h"
#include <signal.h>
#include <sys/time.h>
#pragma pack (1)
typedef struct args {
CY_HANDLE handle;
UCHAR *readBuffer;
UINT32 length;
UINT32 ioTimeout;
CY_RETURN_STATUS rStatus;
UINT32 transferCount;
}args;
typedef struct
{
UINT32 frequency;
UINT8 dataWidth;
UCHAR mode;
UCHAR xferMode;
BOOL isMsbFirst;
BOOL isMaster;
BOOL isContinuous;
BOOL isSelectPrecede;
BOOL cpha;
BOOL cpol;
BOOL isLoopback;
UCHAR reserver[2];
} CyUsSpiConfig_t;
#pragma pack()
struct timeval startSpiTimeWrite, endSpiTimeWrite, startSpiTimeRead, endSpiTimeRead;
//Timer helper functions for proper timing
void startSpiTick (bool isWrite) {
if (isWrite)
gettimeofday (&startSpiTimeWrite, NULL);
else
gettimeofday (&startSpiTimeRead, NULL);
}
UINT32 getSpiLapsedTime (bool isWrite){
signed int currentTime_sec, currentTime_usec, currentTime;
if (isWrite){
gettimeofday (&endSpiTimeWrite, NULL);
currentTime_sec = (endSpiTimeWrite.tv_sec - startSpiTimeWrite.tv_sec) * 1000;
currentTime_usec = ((endSpiTimeWrite.tv_usec - startSpiTimeWrite.tv_usec)) / 1000;
currentTime = currentTime_sec + currentTime_usec;
return (unsigned int)currentTime;
}
else{
gettimeofday (&endSpiTimeRead, NULL);
currentTime_sec = (endSpiTimeRead.tv_sec - startSpiTimeRead.tv_sec) * 1000;
currentTime_usec = ((endSpiTimeRead.tv_usec - startSpiTimeRead.tv_usec)) / 1000;
currentTime = currentTime_sec + currentTime_usec;
return (unsigned int)currentTime;
}
}
/*
This API gets the current SPI config
for the particluar interface of the device
*/
CY_RETURN_STATUS CyGetSpiConfig (
CY_HANDLE handle,
CY_SPI_CONFIG *spiConfig
)
{
UINT16 wValue, wIndex, wLength;
UINT16 bmRequestType, bmRequest;
CyUsSpiConfig_t localSpiConfig;
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
UINT8 scbIndex = 0;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (spiConfig == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_SPI) {
CY_DEBUG_PRINT_ERROR ("CY:Error opened device is not spi ..Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (device->interfaceNum > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_SPI_GET_CONFIG_CMD;
wValue = (scbIndex << CY_SCB_INDEX_POS);
wIndex = 0;
wLength = CY_SPI_CONFIG_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)&localSpiConfig, wLength, ioTimeout);
if (rStatus == CY_SPI_CONFIG_LEN){
//CY_DUMP_DATA ((unsigned char*)&localSpiConfig, wLength);
CY_DEBUG_PRINT_INFO ("CY: Read SPI config successfully %d\n", rStatus);
spiConfig->frequency = localSpiConfig.frequency;
spiConfig->dataWidth = localSpiConfig.dataWidth;
spiConfig->protocol = localSpiConfig.mode;
spiConfig->isMsbFirst = localSpiConfig.isMsbFirst;
spiConfig->isMaster = localSpiConfig.isMaster;
spiConfig->isContinuousMode = localSpiConfig.isContinuous;
spiConfig->isSelectPrecede = localSpiConfig.isSelectPrecede;
spiConfig->isCpha = localSpiConfig.cpha;
spiConfig->isCpol = localSpiConfig.cpol;
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ... Function is %s\n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s...libusb error is %d !\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This API sets SPI config of the device for that
interface
*/
CY_RETURN_STATUS CySetSpiConfig (
CY_HANDLE handle,
CY_SPI_CONFIG *spiConfig
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
CyUsSpiConfig_t localSpiConfig;
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
UINT8 scbIndex = 0;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (spiConfig == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_SPI) {
CY_DEBUG_PRINT_ERROR ("CY:Error device type is not spi ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (spiConfig->frequency < 1000 || spiConfig->frequency > 3000000){
CY_DEBUG_PRINT_ERROR ("CY:Error frequency trying to set in out of range ... Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
if (spiConfig->protocol == CY_SPI_TI){
if (!(spiConfig->isCpol == false && spiConfig->isCpha == true && spiConfig->isContinuousMode == false)){
CY_DEBUG_PRINT_ERROR ("CY:Error ... Wrong configuration for SPI TI mode \n");
return CY_ERROR_REQUEST_FAILED;
}
}
if (spiConfig->protocol == CY_SPI_NS){
if (!(spiConfig->isCpol == false && spiConfig->isCpha == false && spiConfig->isSelectPrecede == false)){
CY_DEBUG_PRINT_ERROR ("CY:Error ... Wrong configuration for SPI ti mode \n");
return CY_ERROR_REQUEST_FAILED;
}
}
else{
if (spiConfig->isSelectPrecede != false){
CY_DEBUG_PRINT_ERROR ("CY:Error ... Wrong configuration for SPI motorola mode \n");
return CY_ERROR_REQUEST_FAILED;
}
}
if (device->interfaceNum > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_SPI_SET_CONFIG_CMD;
wValue = (scbIndex << CY_SCB_INDEX_POS);
wIndex = 0;
wLength = CY_SPI_CONFIG_LEN;
//We will not expose all the spi config structure elements to user.
//Fill in rest of the values.
memset (&localSpiConfig, 0, CY_SPI_CONFIG_LEN);
localSpiConfig.frequency = spiConfig->frequency;
localSpiConfig.dataWidth = spiConfig->dataWidth;
localSpiConfig.mode = spiConfig->protocol;
localSpiConfig.isMsbFirst = spiConfig->isMsbFirst;
localSpiConfig.isMaster = spiConfig->isMaster;
localSpiConfig.isContinuous = spiConfig->isContinuousMode;
localSpiConfig.isSelectPrecede = spiConfig->isSelectPrecede;
localSpiConfig.cpha = spiConfig->isCpha;
localSpiConfig.cpol = spiConfig->isCpol;
//CY_DUMP_DATA ((unsigned char*)&localSpiConfig, wLength);
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)&localSpiConfig, wLength, ioTimeout);
if (rStatus == CY_SPI_CONFIG_LEN){
CY_DEBUG_PRINT_INFO ("CY: Setting SPI config success ...\n");
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..Function is %s\n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ... !libusb error is %d\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*Api will reset the spi module*/
CY_RETURN_STATUS CySpiReset (CY_HANDLE handle)
{
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT16 wValue, wIndex, wLength, bmRequestType, bmRequest;;
UINT16 scbIndex = 0;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_SPI) {
CY_DEBUG_PRINT_ERROR ("CY:Error device type is not spi ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
scbIndex = device->interfaceNum;
if (scbIndex > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_SPI_RESET_CMD;
wValue = ((scbIndex << CY_SCB_INDEX_POS));
wIndex = 0;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus < 0){
CY_DEBUG_PRINT_ERROR ("CY:Error in sending spi reset command...Libusb error is %d\n", rStatus);
return rStatus;
}
return CY_SUCCESS;
}
/*
This API reads SPI data from the specified interface of the device
interface
*/
static void LIBUSB_CALL spi_read_cb(struct libusb_transfer *transfer)
{
UINT32 *completed = transfer->user_data;
*completed = 1;
}
//We adopted for async method here because there are 2 thread polling same fd
// i.e both read and write are polling same fd when one event triggers and other one is
//not completed then another thread will wait for more than 60sec.
CY_RETURN_STATUS CySpiRead (
CY_HANDLE handle,
CY_DATA_BUFFER *readBuffer,
UINT32 ioTimeout
)
{
struct libusb_transfer *readTransfer;
CY_DEVICE *device;
libusb_device_handle *devHandle;
int readCompleted = 0;
struct timeval time;
int r;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
readBuffer->transferCount = 0;
readTransfer = libusb_alloc_transfer(0);
if (readTransfer == NULL){
CY_DEBUG_PRINT_ERROR("CY:Error in allocating transfers \n");
return CY_ERROR_ALLOCATION_FAILED;
}
libusb_fill_bulk_transfer(readTransfer, devHandle, device->inEndpoint, readBuffer->buffer, readBuffer->length,
spi_read_cb, &readCompleted, ioTimeout);
libusb_submit_transfer (readTransfer);
time.tv_sec = (ioTimeout / 1000);
time.tv_usec = ((ioTimeout % 1000) * 1000);//polling timeout.
while (readCompleted == 0){
r = libusb_handle_events_timeout_completed(NULL, &time, &readCompleted);
if (r < 0) {
if (r == LIBUSB_ERROR_INTERRUPTED)
continue;
libusb_cancel_transfer(readTransfer);
while (!readCompleted)
if (libusb_handle_events_completed(NULL, &readCompleted) < 0)
break;
readBuffer->transferCount = readTransfer->actual_length;
libusb_free_transfer(readTransfer);
return r;
}
}
if ((readTransfer->status == LIBUSB_TRANSFER_COMPLETED)){
readBuffer->transferCount = readTransfer->actual_length;
libusb_free_transfer (readTransfer);
return CY_SUCCESS;
}
else{
if (readTransfer->status == LIBUSB_TRANSFER_TIMED_OUT){
//We should not be hitting this case.. As the time out is infinite!!
CY_DEBUG_PRINT_ERROR ("CY:Timeout error in doing SPI read/write .... %d Libusb errors %d\n",
readTransfer->actual_length,readTransfer->status);
readBuffer->transferCount = readTransfer->actual_length;
CySpiReset (handle);
libusb_free_transfer (readTransfer);
return CY_ERROR_IO_TIMEOUT;
}
if (readTransfer->status == LIBUSB_TRANSFER_OVERFLOW){
//Need to handle this properly!
CY_DEBUG_PRINT_ERROR ("CY:OverFlow error in doing SPI read/write .... Libusb errors %d %d \n",
readTransfer->status, readTransfer->actual_length);
readBuffer->transferCount = readTransfer->actual_length;
CySpiReset (handle);
libusb_free_transfer (readTransfer);
return CY_ERROR_BUFFER_OVERFLOW;
}
if (readTransfer->status != LIBUSB_TRANSFER_COMPLETED){
CY_DEBUG_PRINT_ERROR ("CY:Error in doing SPI read/write .... Libusb errors are %d %d\n",
readTransfer->status, readTransfer->actual_length);
readBuffer->transferCount = readTransfer->actual_length;
CySpiReset (handle);
libusb_free_transfer (readTransfer);
//If timer is not completed then it implies we have timeout error
return CY_ERROR_REQUEST_FAILED;
}
}
return CY_ERROR_REQUEST_FAILED;
}
/*Internal SPI get status API for Write operation*/
CY_RETURN_STATUS CyGetSpiStatus (CY_HANDLE handle,
int *spiStatus
)
{
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT16 wValue, wIndex, wLength, bmRequestType, bmRequest;;
UINT16 scbIndex = 0;
UINT32 ioTimeout = 0;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_SPI) {
CY_DEBUG_PRINT_ERROR ("CY:Error device type is not spi ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
scbIndex = device->interfaceNum;
if (scbIndex > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_SPI_GET_STATUS_CMD;
wValue = ((scbIndex << CY_SCB_INDEX_POS));
wIndex = 0;
wLength = CY_SPI_GET_STATUS_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,wValue, wIndex, (UCHAR*)spiStatus, wLength, ioTimeout);
if (rStatus < CY_SPI_GET_STATUS_LEN){
CY_DEBUG_PRINT_INFO ("CY:Error in sending spi Get Status command...Libusb error is %d\n", rStatus);
return rStatus;
}
return CY_SUCCESS;
}
/* Function to write on to SPI alone*/
CY_RETURN_STATUS CySpiWrite (
CY_HANDLE handle,
CY_DATA_BUFFER *writeBuffer,
UINT32 ioTimeout
)
{
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
int spiStatus = 1;
UINT32 newIoTimeout = ioTimeout, elapsedTime = 0, loopCount = 1;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_SPI) {
CY_DEBUG_PRINT_ERROR ("CY:Error device type is not spi ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
startSpiTick (true);
rStatus = libusb_bulk_transfer (devHandle, device->outEndpoint, writeBuffer->buffer, writeBuffer->length,
(int*)&(writeBuffer->transferCount), newIoTimeout);
elapsedTime = getSpiLapsedTime(true);
newIoTimeout = ioTimeout - elapsedTime;
//because we have a sleep of 1 msec after every getstatus
if (newIoTimeout)
loopCount = (newIoTimeout);
if ((rStatus == LIBUSB_SUCCESS)){
CY_DEBUG_PRINT_INFO ("CY: Successfully written SPI data.. %d bytes Read ...\n", writeBuffer->transferCount);
while (loopCount){
usleep (1000);
rStatus = CyGetSpiStatus (handle, &spiStatus);
if (rStatus == CY_SUCCESS){
if (spiStatus == 0){
return CY_SUCCESS;
}
}
else {
//Should never hit this case
CY_DEBUG_PRINT_ERROR ("CY:Error in getting spi status \n");
return CY_ERROR_REQUEST_FAILED;
}
if (ioTimeout)
loopCount--;
}
if (loopCount == 0 && spiStatus > 0){
writeBuffer->length = 0;
CySpiReset (handle);
return CY_ERROR_IO_TIMEOUT;
}
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Error TimeOut ...function is %s\n", __func__);
CySpiReset (handle);
return CY_ERROR_IO_TIMEOUT;
}
else if (rStatus == LIBUSB_ERROR_PIPE){
CY_DEBUG_PRINT_ERROR ("CY:Error Pipe error..function is %s\n", __func__);
CySpiReset (handle);
CyResetPipe (handle, device->outEndpoint);
return CY_ERROR_PIPE_HALTED;
}
else if (rStatus == LIBUSB_ERROR_OVERFLOW){
CY_DEBUG_PRINT_ERROR ("CY:Error Buffer Overflow...function is %s\n", __func__);
return CY_ERROR_BUFFER_OVERFLOW;
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
CY_DEBUG_PRINT_ERROR ("CY:Error Device Disconnected ...function is %s\n", __func__);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else {
CY_DEBUG_PRINT_ERROR ("CY:Error in writing SPI data ...Libusb Error is %d and bytes read is %d!\n", rStatus, writeBuffer->transferCount);
return CY_ERROR_REQUEST_FAILED;
}
return CY_ERROR_REQUEST_FAILED;
}/*
API to wrap up the data
*/
void spiCollectData (void *inputParameters) {
UINT32 readLength = 0, length;
CY_DATA_BUFFER readBuffer;
args *inputData = (args *) inputParameters;
UCHAR *buffer;
CY_RETURN_STATUS rStatus = CY_SUCCESS;
buffer = readBuffer.buffer = inputData->readBuffer;
length = readBuffer.length = inputData->length;
CY_HANDLE handle = inputData->handle;
int newTimeout = inputData->ioTimeout, elapsedTime;
while (readLength != length && newTimeout >= 0 && rStatus == CY_SUCCESS){
//Get current time
//Buffer is pointing to next address where we are suppose to fill the data
readBuffer.buffer = &buffer[readLength];
//Updated length which total length minus the total length of data read
readBuffer.length = length - readLength;
//Libusb fix for mac os!!
//ISSUE:when api times out in MAC it comes back and say read length = 0!!
#ifdef __APPLE__
if (readBuffer.length > 64)
readBuffer.length = 64;
#endif
startSpiTick (false);
rStatus = CySpiRead (handle, &readBuffer, newTimeout);
elapsedTime = getSpiLapsedTime (false);
//Do this only when newTimeout is non zero
if (newTimeout){
newTimeout = newTimeout - elapsedTime;
//If timeout is 0 then libusb considers that as infinite
//So forcefully make the loop to comeout
if (newTimeout <= 0)
rStatus = CY_ERROR_IO_TIMEOUT;
}
if (rStatus != CY_SUCCESS){
readLength += readBuffer.transferCount;
break;
}
readLength += readBuffer.transferCount;
}
if (readLength != length && rStatus == CY_ERROR_IO_TIMEOUT){
CySpiReset (handle);
}
inputData->transferCount = readLength;
inputData->rStatus = rStatus;
}
/*
* Api used to do read as well as write on spi
*/
CY_RETURN_STATUS CySpiReadWrite (CY_HANDLE handle,
CY_DATA_BUFFER *readBuffer,
CY_DATA_BUFFER *writeBuffer,
UINT32 ioTimeout)
{
struct args threadParameter;
UINT32 ret;
pthread_t readThreadID = (pthread_t)0;
CY_DEVICE *device;
libusb_device_handle *devHandle;
CY_RETURN_STATUS rStatus;
unsigned short spiTransferMode = 0, scbIndex = 0;
UINT16 wValue, wIndex = 0, wLength;
UINT16 bmRequestType, bmRequest;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle.. Function is %s \n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (readBuffer == NULL && writeBuffer == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_SPI) {
CY_DEBUG_PRINT_ERROR ("CY:Error opened device is not spi .. \n");
return CY_ERROR_REQUEST_FAILED;
}
//Set both the bits and change it accordingly based on parameters parameters
spiTransferMode |= ((CY_SPI_READ_BIT) | (CY_SPI_WRITE_BIT));
if ((readBuffer == NULL || readBuffer->length == 0 || readBuffer->buffer == NULL))
spiTransferMode &= ~(CY_SPI_READ_BIT);
if ((writeBuffer == NULL || writeBuffer->length == 0 || writeBuffer->buffer == NULL))
spiTransferMode &= ~(CY_SPI_WRITE_BIT);
//if none of the bit is set it implies parameters sent is wrong
if (spiTransferMode == 0){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter.. Function is %s \n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
if (device->interfaceNum > 0)
scbIndex = 1;
//In read only case we take length to be equal to readBuffer length.
//But in write or in write/read case we take length = writeBuffer length.
if (spiTransferMode == 0x1)
wIndex = readBuffer->length;
else
wIndex = writeBuffer->length;
spiTransferMode |= (scbIndex << 15);
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_SPI_READ_WRITE_CMD;
wValue = (spiTransferMode);
wLength = 0;
if (pthread_mutex_trylock (&device->writeLock) == 0){
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, 5000);
if (rStatus){
CY_DEBUG_PRINT_ERROR ("CY:Error Sending spi read write vendor command failed ... Libusb error is %d\n", rStatus);
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_REQUEST_FAILED;
}
//Read Bit is not set then write Only
if (!(spiTransferMode & CY_SPI_READ_BIT)) {
writeBuffer->transferCount = 0;
if (readBuffer)
readBuffer->transferCount = 0;
rStatus = CySpiWrite (handle, writeBuffer, ioTimeout);
pthread_mutex_unlock (&device->writeLock);
return rStatus;
}
//Write Bit is not set then read only
if (!(spiTransferMode & CY_SPI_WRITE_BIT)) {
// We are starting a thread so that we can collect all the data
// FIX for short length packet issue on SPI.
readBuffer->transferCount = 0;
if (writeBuffer)
writeBuffer->transferCount = 0;
threadParameter.handle = handle;
threadParameter.readBuffer = readBuffer->buffer;
threadParameter.length = readBuffer->length;
threadParameter.ioTimeout = ioTimeout;
ret = pthread_create (&readThreadID, NULL, (void *)spiCollectData, (void *)&threadParameter);
if (ret){
CY_DEBUG_PRINT_ERROR ("CY:Error in creating read thread ... Reading failed \n");
pthread_mutex_unlock (&device->writeLock);
readBuffer->transferCount = 0;
return CY_ERROR_REQUEST_FAILED;
}
pthread_join (readThreadID, NULL);
readBuffer->transferCount = threadParameter.transferCount;
pthread_mutex_unlock (&device->writeLock);
return threadParameter.rStatus;
}
writeBuffer->transferCount = 0;
readBuffer->transferCount = 0;
threadParameter.handle = handle;
threadParameter.readBuffer = readBuffer->buffer;
threadParameter.length = readBuffer->length;
threadParameter.ioTimeout = ioTimeout;
ret = pthread_create (&readThreadID, NULL, (void *)spiCollectData, (void *)&threadParameter);
if (ret){
CY_DEBUG_PRINT_ERROR ("CY:Error in creating read thread ... Reading failed \n");
readBuffer->transferCount = 0;
pthread_mutex_unlock (&device->writeLock);
return CY_ERROR_REQUEST_FAILED;
}
rStatus = CySpiWrite (handle, writeBuffer, ioTimeout);
if (rStatus == CY_SUCCESS) {
pthread_join (readThreadID, NULL);
rStatus = threadParameter.rStatus;
readBuffer->transferCount = threadParameter.transferCount;
}
else {
pthread_join (readThreadID, NULL);
readBuffer->transferCount = threadParameter.transferCount;
}
pthread_mutex_unlock (&device->writeLock);
return rStatus;
}
else{
CY_DEBUG_PRINT_ERROR ("CY:Error API busy in service previous request ... Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
return rStatus;
}

755
CyUSBSerial_SDK_Linux/linux/library/cyuart.c Normal file
View File

@@ -0,0 +1,755 @@
/*
* UART routines of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CyUSBCommon.h"
#pragma pack(1)
typedef struct {
CY_UART_BAUD_RATE baudRate;
UINT8 pinType;
UINT8 dataWidth;
UINT8 stopBits;
UINT8 mode;
UINT8 parity;
UINT8 isMsbFirst;
UINT8 txRetry;;
UINT8 rxInvertPolarity;
UINT8 rxIgnoreError;
UINT8 isFlowControl;
UINT8 isLoopBack;
UINT8 flags;
}CyUsUartConfig_t;
#pragma pack()
#define MAX_DEVICE_EP_SIZE 64
/*
There is no way in the current library architecture
Data Queue size can exceed 4 Max EP size Pages.
*/
#define NO_DATA_QUEUE_PAGES 4
#define NUM_MAX_UART_SCB 2
typedef struct dtQueue{
UINT8 cyDataQueue[NO_DATA_QUEUE_PAGES * MAX_DEVICE_EP_SIZE];
UINT8 pHeadPosition;
UINT8 pTailPosition;
UINT16 nTotalAvailableData;
}CyDataQueue;
CyDataQueue gSimpleDataQueue[NUM_MAX_UART_SCB];
//Timer helper functions for proper timing
UINT32 getUartLapsedTime (struct timeval startTime){
signed int currentTime_sec, currentTime_usec, currentTime;
struct timeval endTime;
gettimeofday (&endTime, NULL);
currentTime_sec = (endTime.tv_sec - startTime.tv_sec) * 1000;
currentTime_usec = ((endTime.tv_usec - startTime.tv_usec)) / 1000;
currentTime = currentTime_sec + currentTime_usec;
return (unsigned int)currentTime;
}
// Queue Helper Functions....
void GetDataFromTheQueue(
UINT8 scbIndex,
PCY_DATA_BUFFER cyDataBuffer
)
{
UINT16 headPos = gSimpleDataQueue[scbIndex].pHeadPosition;
UINT16 nCheckForWrapAround = 0;
UINT8* buffer = &gSimpleDataQueue[scbIndex].cyDataQueue[headPos];
UINT16 nMaxBufferSize = (NO_DATA_QUEUE_PAGES * MAX_DEVICE_EP_SIZE);
// Parameter Validation.
if (gSimpleDataQueue[scbIndex].nTotalAvailableData == 0 ) return; // No data in the queue to return.
// Is there any Memory space in the queue to add more.
if (gSimpleDataQueue[scbIndex].pHeadPosition == gSimpleDataQueue[scbIndex].pTailPosition ) return;
// Is this Invalid Parameters?
if (scbIndex > 1 || cyDataBuffer == NULL || cyDataBuffer->length == 0) return;
// Now make the transfer from the queue.
if (cyDataBuffer->length >= gSimpleDataQueue[scbIndex].nTotalAvailableData ) {
nCheckForWrapAround = (gSimpleDataQueue[scbIndex].pHeadPosition +
gSimpleDataQueue[scbIndex].nTotalAvailableData);
// Copy the data.
if (nCheckForWrapAround <= nMaxBufferSize )
{
memcpy(cyDataBuffer->buffer, buffer, gSimpleDataQueue[scbIndex].nTotalAvailableData);
cyDataBuffer->transferCount = gSimpleDataQueue[scbIndex].nTotalAvailableData;
}
else {
// Queue Wrap around occurred.
UINT16 bufferLen1 = nMaxBufferSize - (gSimpleDataQueue[scbIndex].pHeadPosition);
UINT16 bufferLen2 = gSimpleDataQueue[scbIndex].pTailPosition;
memcpy(cyDataBuffer->buffer, buffer, bufferLen1);
buffer = &gSimpleDataQueue[scbIndex].cyDataQueue[0];
memcpy(cyDataBuffer->buffer+bufferLen1, buffer, bufferLen2);
cyDataBuffer->transferCount = (bufferLen1 + bufferLen2);
}
// Reset the queue.
gSimpleDataQueue[scbIndex].pHeadPosition = 0;
gSimpleDataQueue[scbIndex].pTailPosition = 0;
gSimpleDataQueue[scbIndex].nTotalAvailableData = 0;
return;
}
// Here the available data buffer length is more than the requested
// transfer size.
nCheckForWrapAround = (gSimpleDataQueue[scbIndex].pHeadPosition +
cyDataBuffer->length);
// Copy the data.
if (nCheckForWrapAround <= nMaxBufferSize )
{
memcpy(cyDataBuffer->buffer, buffer, cyDataBuffer->length);
cyDataBuffer->transferCount = cyDataBuffer->length;
gSimpleDataQueue[scbIndex].pHeadPosition += cyDataBuffer->length;
}
else {
// Queue Wrap around occurred.
UINT16 bufferLen1 = nMaxBufferSize - (gSimpleDataQueue[scbIndex].pHeadPosition);
UINT16 bufferLen2 = cyDataBuffer->length - bufferLen1;
memcpy(cyDataBuffer->buffer, buffer, bufferLen1);
buffer = &gSimpleDataQueue[scbIndex].cyDataQueue[0];
memcpy(cyDataBuffer->buffer+bufferLen1, buffer, bufferLen2);
cyDataBuffer->transferCount = (bufferLen1 + bufferLen2);
gSimpleDataQueue[scbIndex].pHeadPosition = (UINT8)bufferLen2;
}
gSimpleDataQueue[scbIndex].nTotalAvailableData -= cyDataBuffer->length;
}
void AddDataToQueue(
UINT8 scbIndex,
UINT8* buffer,
UINT8 length
)
{
UINT16 tailPos = gSimpleDataQueue[scbIndex].pTailPosition;
UINT8* bufQueue = &gSimpleDataQueue[scbIndex].cyDataQueue[tailPos];
UINT16 nMaxBufferSize = (NO_DATA_QUEUE_PAGES * MAX_DEVICE_EP_SIZE);
// Parameter Validation.
if (gSimpleDataQueue[scbIndex].nTotalAvailableData >= nMaxBufferSize ) return; // No space in the queue.
// Is this Invalid Parameters?
if (scbIndex > 1 || buffer == NULL || length == 0) return;
// Can this new data addition happens?
if ( (gSimpleDataQueue[scbIndex].nTotalAvailableData + length) > nMaxBufferSize ) return;
if ((tailPos + length) <= nMaxBufferSize )
{
// Queue doesn't need wrap around for this new data addition.
memcpy(bufQueue, buffer, length);
gSimpleDataQueue[scbIndex].nTotalAvailableData += length;
gSimpleDataQueue[scbIndex].pTailPosition += length;
return;
}
else {
// Queue Wrap around occurred.
UINT16 bufferLen1 = nMaxBufferSize - (gSimpleDataQueue[scbIndex].pTailPosition);
UINT16 bufferLen2 = length - bufferLen1;
memcpy(bufQueue, buffer, bufferLen1);
bufQueue = &gSimpleDataQueue[scbIndex].cyDataQueue[0];
memcpy(bufQueue, buffer+bufferLen1, bufferLen2);
gSimpleDataQueue[scbIndex].pTailPosition = (UINT8)bufferLen2;
gSimpleDataQueue[scbIndex].nTotalAvailableData += length;
}
}
/*
This API gets the current UART configuration of the
device.Such as GPIO's assigned, flowcontrol, BaudRate
etc.
*/
CY_RETURN_STATUS CyGetUartConfig (
CY_HANDLE handle,
PCY_UART_CONFIG uartConfig
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
CY_DEVICE *device;
CyUsUartConfig_t localUartConfig;
libusb_device_handle *devHandle;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
UINT8 scbIndex = 0;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (uartConfig == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid input parameter..Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (device->interfaceNum > 0)
scbIndex = 1;
bmRequestType = CY_VENDOR_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_UART_GET_CONFIG_CMD;
wValue = (scbIndex << CY_SCB_INDEX_POS);
wIndex = 0;
wLength = CY_UART_CONFIG_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)&localUartConfig, wLength, ioTimeout);
//Since we are not exposing all the configuration elements
//parse and fill only relevant elements.
if (rStatus == CY_UART_CONFIG_LEN){
uartConfig->dataWidth = localUartConfig.dataWidth;
uartConfig->baudRate = localUartConfig.baudRate;
uartConfig->stopBits = localUartConfig.stopBits;
uartConfig->parityMode = (CY_UART_PARITY_MODE)localUartConfig.parity;;
uartConfig->isDropOnRxErrors = localUartConfig.rxIgnoreError;
//We are currently ignoring rest of the bits
CY_DEBUG_PRINT_INFO ("CY:Successfully read UART Config\n");
return CY_SUCCESS;
}
else{
CY_DEBUG_PRINT_ERROR ("CY:Error in reading UART config ... Libusb Error is %d \n", rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This API sets the current UART configuration of the
device.Such as GPIO's assigned, flowcontrol, BaudRate
etc.
*/
CY_RETURN_STATUS CySetUartConfig (
CY_HANDLE handle,
CY_UART_CONFIG *uartConfig
)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
CyUsUartConfig_t localUartConfig;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
UINT8 scbIndex = 0;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (uartConfig == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid input parameter..Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
if (uartConfig->dataWidth < 7 || uartConfig->dataWidth > 8){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid input parameter..Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
if (uartConfig->stopBits < 1 || uartConfig->stopBits > 2){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid input parameter..Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->interfaceNum > 0)
scbIndex = 1;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_VENDOR_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_UART_SET_CONFIG_CMD;
wValue = (scbIndex << CY_SCB_INDEX_POS);
wIndex = 0;
wLength = CY_UART_CONFIG_LEN;
memset(&gSimpleDataQueue[scbIndex], 0, sizeof(CyDataQueue));
memset (&localUartConfig, 0, CY_UART_CONFIG_LEN);
//Fill in rest of the UART config structure elements
//that are not exposed in API with default values
localUartConfig.baudRate = uartConfig->baudRate;
localUartConfig.dataWidth = uartConfig->dataWidth;
localUartConfig.stopBits = uartConfig->stopBits;
localUartConfig.parity = (UCHAR) uartConfig->parityMode;
localUartConfig.rxIgnoreError = uartConfig->isDropOnRxErrors;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)&localUartConfig, wLength, ioTimeout);
if (rStatus == CY_UART_CONFIG_LEN){
CY_DEBUG_PRINT_INFO ("CY:Successfully Set UART Config \n");
return CY_SUCCESS;
}
else{
CY_DEBUG_PRINT_ERROR ("CY:Error in Setting UART config ... Libusb Error is %d \n", rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This Api writes the Data to UART block of the
device.
*/
CY_RETURN_STATUS CyUartWrite (
CY_HANDLE handle,
CY_DATA_BUFFER* writeBuffer,
unsigned int ioTimeOut
)
{
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if ((writeBuffer == NULL) || (writeBuffer->buffer == NULL) || (writeBuffer->length == 0)){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid input parameters..Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
writeBuffer->transferCount = 0;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
rStatus = libusb_bulk_transfer (devHandle, device->outEndpoint, writeBuffer->buffer, writeBuffer->length,
(int *)&((writeBuffer->transferCount)), ioTimeOut);
if ((rStatus == CY_SUCCESS)) {
CY_DEBUG_PRINT_INFO ("CY: SuccessFull in Wrting Data,%d bytes were transfered \n", (writeBuffer->transferCount));
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:TimeOut error ...Function is %s\n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else if (rStatus == LIBUSB_ERROR_PIPE){
CY_DEBUG_PRINT_ERROR ("CY:Pipe error endpoint Halted ...Function is %s\n", __func__);
CyResetPipe (handle, device->outEndpoint);
return CY_ERROR_PIPE_HALTED;
}
else if (rStatus == LIBUSB_ERROR_OVERFLOW){
CY_DEBUG_PRINT_ERROR ("CY:Error Buffer Overflow occured ...Function is %s\n", __func__);
return CY_ERROR_BUFFER_OVERFLOW;
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
CY_DEBUG_PRINT_ERROR ("CY: Device Disconnected .... Function is %s\n", __func__);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Unknown error ....Libusb error is %d Function is %s\n", rStatus, __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This Api Reads the Data from UART block of the
device.
*/
CY_RETURN_STATUS CyUartRead (
CY_HANDLE handle,
CY_DATA_BUFFER* readBuffer,
unsigned int ioTimeOut
)
{
int rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
UINT32 length, totalRead = 0, newIoTimeout = ioTimeOut, elapsedTime;
int transferCount;
UCHAR *buffer;
struct timeval startTime;
UINT8 scbIndex = 0;
UINT8 cyTempBuffer[64];
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if ((readBuffer == NULL) || (readBuffer->buffer == NULL) || (readBuffer->length == 0)){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid input parameters..Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
length = readBuffer->length;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
readBuffer->transferCount = 0;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (device->interfaceNum > 0)
scbIndex = 1;
if (gSimpleDataQueue[scbIndex].nTotalAvailableData > 0 )
{
// We already have the data read from the device.
// Provide this data to the API.
GetDataFromTheQueue(scbIndex, readBuffer);
if (readBuffer->length == readBuffer->transferCount) return CY_SUCCESS;
totalRead = readBuffer->transferCount;
length = (length - totalRead);
}
//Collect all the data in low baud rate for uart. As we get data in short packet
do {
// buffer will be pointing to new pointer
buffer = &(readBuffer->buffer[totalRead]);
//Start the tick
gettimeofday(&startTime, NULL);
rStatus = libusb_bulk_transfer (devHandle, device->inEndpoint, cyTempBuffer, MAX_DEVICE_EP_SIZE,
&transferCount, newIoTimeout);
elapsedTime = getUartLapsedTime(startTime);
//Get the new timeout.
newIoTimeout = newIoTimeout - elapsedTime;
if (transferCount <= length ) {
//Initialise totalRead to initially read + bytes returned now
totalRead += transferCount;
//length will initial length - transferCount
length = (length - transferCount);
memcpy(buffer, cyTempBuffer, transferCount);
}
else {
totalRead += length;
memcpy(buffer, cyTempBuffer, length);
AddDataToQueue(scbIndex, cyTempBuffer+length, (transferCount - length));
length = 0;
}
}while ((rStatus == CY_SUCCESS) && (totalRead != readBuffer->length) && (newIoTimeout > 0));
if (newIoTimeout <= 0 && totalRead != readBuffer->length)
rStatus = LIBUSB_ERROR_TIMEOUT;
if (rStatus == CY_SUCCESS){
//CY_DUMP_DATA (readBuffer->buffer, readBuffer->transferCount);
readBuffer->transferCount = totalRead;
CY_DEBUG_PRINT_INFO ("CY: SuccessFull in Reading Data,%d bytes were transfered \n", (readBuffer->transferCount));
return CY_SUCCESS;
}
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
readBuffer->transferCount = totalRead;
CY_DEBUG_PRINT_ERROR ("CY:TimeOut error... Function is %s\n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else if (rStatus == LIBUSB_ERROR_PIPE){
readBuffer->transferCount = totalRead;
CY_DEBUG_PRINT_ERROR ("CY:Pipe error endpoint Halted ...Function is %s\n", __func__);
CyResetPipe (handle, device->inEndpoint);
return CY_ERROR_PIPE_HALTED;
}
else if (rStatus == LIBUSB_ERROR_OVERFLOW){
readBuffer->transferCount = totalRead;
CY_DEBUG_PRINT_ERROR ("CY:Error Buffer Overflow occured ...Function is %s\n", __func__);
return CY_ERROR_BUFFER_OVERFLOW;
}
else if (rStatus == LIBUSB_ERROR_NO_DEVICE) {
readBuffer->transferCount = totalRead;
CY_DEBUG_PRINT_ERROR ("CY: Device Disconnected ....Function is %s\n", __func__);
return CY_ERROR_DEVICE_NOT_FOUND;
}
else {
readBuffer->transferCount = totalRead;
CY_DEBUG_PRINT_ERROR ("CY: Unknown error ....Libusb error is %d Function is %s\n", rStatus, __func__);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This Api sets the hardware flow control
*/
CY_RETURN_STATUS CyUartSetHwFlowControl (
CY_HANDLE handle,
CY_FLOW_CONTROL_MODES mode
)
{
UINT16 wValue = 0, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (mode < 0 || mode > 3){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid parameter..Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_UART_SET_FLOW_CONTROL_CMD;
wValue |= mode;
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus < 0){
CY_DEBUG_PRINT_ERROR ("CY:Error in setting uart flow control ... Libusb Error is %d \n", rStatus);
return CY_ERROR_REQUEST_FAILED;
}
device->uartFlowControlMode = mode;
return CY_SUCCESS;
}
/*
Api gets the current flow control mode
*/
CY_RETURN_STATUS CyUartGetHwFlowControl (
CY_HANDLE handle,
CY_FLOW_CONTROL_MODES *mode
)
{
CY_DEVICE *device;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
if (mode == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid input parameters..Function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
device = (CY_DEVICE *)handle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
(*mode) = device->uartFlowControlMode;
return CY_SUCCESS;
}
/* The API is used to break
*/
CYWINEXPORT CY_RETURN_STATUS CyUartSetBreak(
CY_HANDLE handle, /*Valid handle to communicate with device*/
UINT16 timeout /*Break timeout value in milliseconds */
)
{
UINT16 wValue = 0, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_UART_SEND_BREAK_CMD;
wValue = timeout;
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in setting break ... Libusb Error is %d \n", rStatus);
return CY_ERROR_REQUEST_FAILED;
}
return CY_SUCCESS;
}
/*
This Api sets the RTS UART pins High
*/
CY_RETURN_STATUS CyUartSetRts (
CY_HANDLE handle
)
{
UINT16 wValue = 0, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_SET_LINE_CONTROL_STATE_CMD;
wValue |= (1 << 1) | (device->dtrValue);
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == CY_SUCCESS){
device->rtsValue = 1;
return CY_SUCCESS;
}
else {
CY_DEBUG_PRINT_ERROR ("CY:Error in setting RTS of UART ... Libusb Error is %d \n", rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This Api clears the RTS UART pin and makes it low
*/
CY_RETURN_STATUS CyUartClearRts (
CY_HANDLE handle
)
{
UINT16 wValue = 0, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_SET_LINE_CONTROL_STATE_CMD;
wValue = (device->dtrValue);
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == CY_SUCCESS){
device->rtsValue = 0;
return CY_SUCCESS;
}
else {
CY_DEBUG_PRINT_ERROR ("CY:Error in clearing RTS of UART ... Libusb Error is %d \n", rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This Api sets the DTR UART pin High
*/
CY_RETURN_STATUS CyUartSetDtr (
CY_HANDLE handle
)
{
UINT16 wValue = 0, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_SET_LINE_CONTROL_STATE_CMD;
wValue = ((device->rtsValue) << 1) | 1;
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == CY_SUCCESS){
device->dtrValue = 1;
return CY_SUCCESS;
}
else {
CY_DEBUG_PRINT_ERROR ("CY:Error in setting DTR of UART ... Libusb Error is %d \n", rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
This Api clears the DTR UART pin and makes it low
*/
CY_RETURN_STATUS CyUartClearDtr (
CY_HANDLE handle
)
{
UINT16 wValue = 0, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid handle..Function is %s\n", __func__);
return CY_ERROR_INVALID_HANDLE;
}
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType != CY_TYPE_UART){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device type needs to be uart..Function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_SET_LINE_CONTROL_STATE_CMD;
wValue = ((device->rtsValue) << 1);
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == CY_SUCCESS){
device->dtrValue = 0;
return CY_SUCCESS;
}
else{
CY_DEBUG_PRINT_ERROR ("CY:Error in function %s... Libusb Error is %d \n",__func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}

630
CyUSBSerial_SDK_Linux/linux/library/cyusb.c Normal file
View File

@@ -0,0 +1,630 @@
/*
* USB routines of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CyUSBCommon.h"
static bool glDriverInit = false;
static libusb_device **glDeviceList;
static UINT32 glNumDevices;
/*The API initializes the Libusb library
*/
pthread_mutex_t criticalSection;
CY_RETURN_STATUS CyLibraryInit ()
{
UINT32 rStatus;
rStatus = libusb_init (NULL);
if (glDriverInit != true){
if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Driver Init Failed ...\n");
return CY_ERROR_DRIVER_INIT_FAILED;
}
glNumDevices = libusb_get_device_list (NULL, &glDeviceList);
if (glNumDevices < 0){
CY_DEBUG_PRINT_ERROR ("CY:Building device list Failed ...\n");
glNumDevices = -1;
return CY_ERROR_DRIVER_INIT_FAILED;
}
pthread_mutex_init (&criticalSection, NULL);
glDriverInit = true;
return CY_SUCCESS;
}
else{
CY_DEBUG_PRINT_ERROR ("CY:Error ... library already initialized \n");
return CY_ERROR_DRIVER_INIT_FAILED;
}
}
/*
This API needs to be called after Calling CyGetListofDevices.
*/
CY_RETURN_STATUS CyLibraryExit ()
{
if (glDriverInit == true){
if (glNumDevices >= 0)
libusb_free_device_list (glDeviceList, 1);
//This is to avoid loss of device handle issue with respect to libusb context.
//libusb_exit (NULL);
glDriverInit = false;
pthread_mutex_destroy (&criticalSection);
return CY_SUCCESS;
}
CY_DEBUG_PRINT_ERROR ("CY:Error ... Library not initialized \n");
return CY_ERROR_REQUEST_FAILED;
}
/*
* This function Gets the number of all the devices currently
* Connected to the host (It includes Cypress Device as well as
* no Cypress Devices connected)
*/
CY_RETURN_STATUS CyGetListofDevices (
UINT8 *numDevices
)
{
// Use this variable to call libusb_close and exit of the application
if (numDevices == NULL)
return CY_ERROR_INVALID_PARAMETER;
if (!glDriverInit){
CY_DEBUG_PRINT_ERROR ("CY:Error Library not initialised ...function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
pthread_mutex_lock (&criticalSection);
libusb_free_device_list (glDeviceList, 1);
glNumDevices = (*numDevices) = libusb_get_device_list (NULL, &glDeviceList);
pthread_mutex_unlock (&criticalSection);
if (glNumDevices < 0){
CY_DEBUG_PRINT_ERROR ("CY:Building device list Failed ...function is %s\n", __func__);
glNumDevices = -1;
(*numDevices) = -1;
return CY_ERROR_REQUEST_FAILED;
}
return CY_SUCCESS;
}
/* This function gets all the neccessary info such as VID,PID,
String Descriptors and if is a cypress serial device you will
get the info on class and device type
*/
CY_RETURN_STATUS CyGetDeviceInfo (
UINT8 deviceNumber,
CY_DEVICE_INFO *deviceInfo
)
{
struct libusb_device_descriptor deviceDesc;
UINT32 rStatus, numInterfaces;
UINT8 iManufacturer, iProduct, iSerial;
libusb_device *usbDevice;;
struct libusb_config_descriptor *configDesc;
libusb_device_handle *devHandle;
// Get the list of descriptor info for the device
if (glDriverInit == false){
CY_DEBUG_PRINT_ERROR ("CY:Error Library not initialised ...function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (deviceInfo == NULL)
return CY_ERROR_INVALID_PARAMETER;
pthread_mutex_lock (&criticalSection);
if (deviceNumber >= glNumDevices){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device number... \n");
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_INVALID_PARAMETER;
}
usbDevice = glDeviceList[deviceNumber];
rStatus = libusb_get_device_descriptor (usbDevice, &deviceDesc);
if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error ... unable to retrieve device descriptor \n");
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DEVICE_INFO_FETCH_FAILED;
}
deviceInfo->vidPid.vid = deviceDesc.idVendor;
deviceInfo->vidPid.pid = deviceDesc.idProduct;
// Get the all the index of the String descriptors so that it can be used
// to retrieve the string descriptor info.
iManufacturer = deviceDesc.iManufacturer;
iProduct = deviceDesc.iProduct;
iSerial = deviceDesc.iSerialNumber;
//Get the Device handle so that we can communicate with the device retreiving
// descriptor info
deviceInfo->manufacturerName[0] = '\0';
deviceInfo->productName[0] = '\0';
deviceInfo->serialNum[0] = '\0';
rStatus = libusb_open (usbDevice, &devHandle);
if (rStatus == LIBUSB_ERROR_ACCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error ...Insufficient permission... Libusb error is %d \n", rStatus);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_ACCESS_DENIED;
}
else if (rStatus != CY_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in opening the device... Libusb error is %d \n", rStatus);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DEVICE_INFO_FETCH_FAILED;
}
if (iManufacturer > 0){
rStatus = libusb_get_string_descriptor_ascii (devHandle, iManufacturer, deviceInfo->manufacturerName, 256);
if (rStatus <= LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in Getting Manufacturer name Error is <%x> \n", rStatus);
}
}
if (iProduct > 0){
rStatus = libusb_get_string_descriptor_ascii (devHandle, iProduct, deviceInfo->productName, 256);
if (rStatus <= LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in Getting product name Error is <%d> \n", rStatus);
}
}
if (iSerial > 0){
rStatus = libusb_get_string_descriptor_ascii (devHandle, iSerial, deviceInfo->serialNum, 256);
if (rStatus <= LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in Getting Serial name <%d>\n", rStatus);
}
}
rStatus = libusb_get_config_descriptor (usbDevice, 0, &configDesc);
if (rStatus == LIBUSB_SUCCESS){
UINT32 index_i = 0;
const struct libusb_interface *interface;
numInterfaces = configDesc->bNumInterfaces;
deviceInfo->numInterfaces = numInterfaces;
interface = configDesc->interface;
while ((numInterfaces) && (index_i < CY_MAX_DEVICE_INTERFACE)){
deviceInfo->deviceClass[index_i] = (CY_DEVICE_CLASS)interface->altsetting->bInterfaceClass;
if (deviceInfo->deviceClass[index_i] == CY_CLASS_VENDOR){
deviceInfo->deviceType[index_i] = (CY_DEVICE_CLASS)interface->altsetting->bInterfaceSubClass;
}
else
deviceInfo->deviceType[index_i] = CY_TYPE_DISABLED;
index_i++;
numInterfaces--;
interface++;
}
libusb_free_config_descriptor(configDesc);
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in Getting config descriptor ...Libusb error is %d \n", rStatus);
if (devHandle)
libusb_close (devHandle);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DEVICE_INFO_FETCH_FAILED;
}
if (devHandle)
libusb_close (devHandle);
pthread_mutex_unlock (&criticalSection);
return CY_SUCCESS;
}
/* This function gets all the neccessary info such as VID,PID,
String Descriptors and if is a cypress serial device you will
get the info on class and device type
*/
CY_RETURN_STATUS CyGetDeviceInfoVidPid (
CY_VID_PID vidPid,
UINT8 *deviceNumber,
PCY_DEVICE_INFO deviceInfoList,
UINT8 *deviceCount,
UINT8 infoListLength
)
{
struct libusb_device_descriptor deviceDesc;
UINT32 rStatus = CY_ERROR_DRIVER_INIT_FAILED, numInterfaces, index = 0, devNum;
uint8_t iManufacturer, iProduct, iSerial;
libusb_device *usbDevice;
struct libusb_config_descriptor *configDesc;
libusb_device_handle *devHandle = NULL;
PCY_DEVICE_INFO deviceInfo;
if (glDriverInit == false){
CY_DEBUG_PRINT_ERROR ("CY:Error Library not initialised ...function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if ((infoListLength) < 1){
CY_DEBUG_PRINT_ERROR ("CY:Error invalid device info list length specified should be > 0 .. function is %s\n", __func__);
return CY_ERROR_INVALID_PARAMETER;
}
if (deviceNumber == NULL || deviceInfoList == NULL || deviceCount == NULL)
return CY_ERROR_INVALID_PARAMETER;
// Get the list of descriptor info for the device
(*deviceCount) = 0;
pthread_mutex_lock (&criticalSection);
for (devNum = 0; devNum < glNumDevices; devNum++) {
//We are making sure that we do not overrun
//the list.
deviceInfo = &(deviceInfoList [index]);
usbDevice = glDeviceList[devNum];
rStatus = libusb_get_device_descriptor (usbDevice, &deviceDesc);
if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in getting device descriptor for device-%d... Libusb Error is %d \n", devNum, rStatus);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DEVICE_INFO_FETCH_FAILED;
}
if ((deviceDesc.idVendor != vidPid.vid) || (deviceDesc.idProduct != vidPid.pid)){
continue;
}
(*deviceCount)++;
if (index > infoListLength){
continue;
}
rStatus = libusb_open (usbDevice, &devHandle);
if (rStatus == LIBUSB_ERROR_ACCESS){
CY_DEBUG_PRINT_ERROR ("CY:Insufficient permission ... Libusb error is %d \n", rStatus);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_ACCESS_DENIED;
}
else if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in Opening the Device ...Error is %d \n", rStatus);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DEVICE_INFO_FETCH_FAILED;
}
deviceNumber[index] = devNum;
index++;
deviceInfo->vidPid.vid = deviceDesc.idVendor;
deviceInfo->vidPid.pid = deviceDesc.idProduct;
// Get all the index of the String descriptors so that it can be used
// to retrieve the string descriptor info.
iManufacturer = deviceDesc.iManufacturer;
iProduct = deviceDesc.iProduct;
iSerial = deviceDesc.iSerialNumber;
//Get the Device handle so that we can communicate with the device retreiving
// descriptor info
//Initialise manufacturer, product and serial names
deviceInfo->manufacturerName[0] = '\0';
deviceInfo->productName[0] = '\0';
deviceInfo->serialNum[0] = '\0';
if (iManufacturer > 0) {
rStatus = libusb_get_string_descriptor_ascii (devHandle, iManufacturer, deviceInfo->manufacturerName, 256);
if (rStatus <= LIBUSB_SUCCESS){
CY_DEBUG_PRINT_INFO ("CY:Error in Getting Manufacturer name Error is <%d> \n",rStatus);
}
}
if (iProduct > 0){
rStatus = libusb_get_string_descriptor_ascii (devHandle, iProduct, deviceInfo->productName, 256);
if (rStatus <= LIBUSB_SUCCESS){
CY_DEBUG_PRINT_INFO ("CY:Error in Getting product name Error is <%d> \n", rStatus);
}
}
if (iSerial > 0){
rStatus = libusb_get_string_descriptor_ascii (devHandle, iSerial, deviceInfo->serialNum, 256);
if (rStatus <= LIBUSB_SUCCESS){
CY_DEBUG_PRINT_INFO ("CY:Error in Getting Serial name <%d>\n", rStatus);
}
}
CY_DEBUG_PRINT_INFO ("Manufacturer name <%s> \nProduct Name <%s> \nserial number <%s> \n",
deviceInfo->manufacturerName,deviceInfo->productName,deviceInfo->serialNum);
rStatus = libusb_get_config_descriptor (usbDevice, 0, &configDesc);
if (rStatus == LIBUSB_SUCCESS){
int index_i = 0;
const struct libusb_interface *interfaceDesc;
numInterfaces = configDesc->bNumInterfaces;
deviceInfo->numInterfaces = numInterfaces;
interfaceDesc = configDesc->interface;
while ((numInterfaces) && (index_i < CY_MAX_DEVICE_INTERFACE)){
deviceInfo->deviceClass[index_i] = (CY_DEVICE_CLASS)interfaceDesc->altsetting->bInterfaceClass;
if (deviceInfo->deviceClass[index_i] == CY_CLASS_VENDOR)
deviceInfo->deviceType[index_i] = (CY_DEVICE_CLASS)interfaceDesc->altsetting->bInterfaceSubClass;
else
deviceInfo->deviceType[index_i] = CY_TYPE_DISABLED;
index_i++;
numInterfaces--;
interfaceDesc++;
}
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in Getting config descriptor ... Libusb Error is %d\n", rStatus);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DEVICE_INFO_FETCH_FAILED;
}
libusb_free_config_descriptor (configDesc);
libusb_close (devHandle);
}
if ((*deviceCount) == 0)
rStatus = CY_ERROR_DEVICE_NOT_FOUND;
pthread_mutex_unlock (&criticalSection);
return rStatus;
}
/*
This API will claim the interface in the device
To make sure only claimed application speaks to device.
*/
CY_RETURN_STATUS CySelectInterface (
CY_HANDLE handle,
UINT8 interfaceNum
)
{
UINT32 rStatus, numEP;
CY_DEVICE *device;
libusb_device_handle *devHandle;
libusb_device *usbDev;
struct libusb_config_descriptor *configDesc;
const struct libusb_interface *interfaceDesc;
const struct libusb_endpoint_descriptor *epDesc;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
usbDev = libusb_get_device (devHandle);
if (usbDev == NULL){
CY_DEBUG_PRINT_ERROR ("CY:Error Invalide handle ..function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
//Get the config descriptor and parse it to get the
//interface and endpoint descriptor
rStatus = libusb_get_config_descriptor (usbDev, 0, &configDesc);
if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in Getting Config Desc ...function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
interfaceDesc = configDesc->interface;
//Interface Number should be a valid one and should not exceed
// total number of interfaces
if (interfaceNum >= configDesc->bNumInterfaces){
CY_DEBUG_PRINT_ERROR ("CY:Interface Number not valid... \n");
libusb_free_config_descriptor (configDesc);
return CY_ERROR_REQUEST_FAILED;
}
if (libusb_kernel_driver_active (devHandle, interfaceNum)){
CY_DEBUG_PRINT_ERROR ("CY:Kernel driver active on the interface number %d \n", interfaceNum);;
//User can uncomment this section if needed.
#ifdef CY_DETACH_KERNEL_DRIVER
if (!libusb_detach_kernel_driver (devHandle, interfaceNum)){
CY_DEBUG_PRINT_ERROR ("CY:Kernel driver detach failed %d\n", interfaceNum);
return CY_ERROR_REQUEST_FAILED;
}
#else
return CY_ERROR_REQUEST_FAILED;
#endif
}
rStatus = libusb_claim_interface (devHandle, interfaceNum);
if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in claiming interface -interface num %d... Libusb error is %d \n", interfaceNum, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
device->interfaceNum = interfaceNum;
while (interfaceNum--)
interfaceDesc++;
epDesc = interfaceDesc->altsetting->endpoint;
numEP = interfaceDesc->altsetting->bNumEndpoints;
device->numEndpoints = numEP;
// Check the total number of endpoints interface has
// and get all the endpoint add
CY_DEBUG_PRINT_INFO ("CY:Info The total number of endpoints are %d \n", numEP);
while (numEP){
if (epDesc->bmAttributes == 0x2){ //Bulk EP checking
if (epDesc->bEndpointAddress & 0x80)
device->inEndpoint = epDesc->bEndpointAddress;
else
device->outEndpoint = epDesc->bEndpointAddress;
}
else if (epDesc->bmAttributes == 0x3) //Interrupt EP checking (We have only one interrupt EP)
device->interruptEndpoint = epDesc->bEndpointAddress;
epDesc++;
numEP--;
}
CY_DEBUG_PRINT_INFO ("CY:Info The Endpoints are in %d and out %d and interrup %d\n",
device->inEndpoint, device->outEndpoint, device->interruptEndpoint);
libusb_free_config_descriptor (configDesc);
return CY_SUCCESS;
}
/*
* This API selects the type of the device
*/
void CySelectDeviceType (CY_DEVICE *device, libusb_device *libUsbdev, unsigned char interfaceNum)
{
int rStatus, numInterfaces;
struct libusb_config_descriptor *configDesc;
int index = 0;
const struct libusb_interface *interfaceDesc;
device->deviceType = CY_TYPE_DISABLED;
rStatus = libusb_get_config_descriptor (libUsbdev, 0, &configDesc);
if (0 == rStatus){
interfaceDesc = configDesc->interface;
numInterfaces = configDesc->bNumInterfaces;
if (interfaceNum >= numInterfaces)
return;
while (index != interfaceNum) {
index++;
interfaceDesc++;
}
if (interfaceDesc->altsetting->bInterfaceClass == CY_CLASS_VENDOR)
device->deviceType = (CY_DEVICE_CLASS)interfaceDesc->altsetting->bInterfaceSubClass;
libusb_free_config_descriptor (configDesc);
}
CY_DEBUG_PRINT_INFO ("CY:Info The device type is %d \n", device->deviceType);
}
/*
The Api Gets the handle for the specified device number
(refer to usage guide and example for usage)
and this handle should be called for further communication
with the device
*/
CY_RETURN_STATUS CyOpen (
unsigned char deviceNumber,
unsigned char interfaceNum,
CY_HANDLE *handle
)
{
libusb_device_handle *devHandle;
libusb_device *dev;
CY_DEVICE *device;
UINT32 rStatus;
if (glDriverInit == false){
CY_DEBUG_PRINT_ERROR ("CY:Error Library not initialised ...function is %s\n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
pthread_mutex_lock (&criticalSection);
if (glDriverInit == true){
if (deviceNumber >= glNumDevices){
CY_DEBUG_PRINT_ERROR ("CY:Error ... Invalid device number ... \n");
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_INVALID_PARAMETER;
}
dev = glDeviceList [deviceNumber];
rStatus = libusb_open (dev, &devHandle);
if (rStatus == LIBUSB_ERROR_ACCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in opening the device ..Access denied \n");
handle = NULL;
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_ACCESS_DENIED;
}
if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in Opening the Device ...Error is %d \n", rStatus);
handle = NULL;
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DRIVER_OPEN_FAILED;
}
device = (CY_DEVICE *)malloc(sizeof (CY_DEVICE));
if (device == NULL){
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_ALLOCATION_FAILED;
}
device->devHandle = devHandle;
(*handle) = device;
rStatus = CySelectInterface (device, interfaceNum);
if (rStatus != CY_SUCCESS){
libusb_close (devHandle);
free (device);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DRIVER_OPEN_FAILED;
}
CySelectDeviceType (device, dev, interfaceNum);
if (device->deviceType == CY_TYPE_UART) {
CyUartSetRts (*handle);
CyUartSetDtr (*handle);
if (!CyUartSetHwFlowControl (*handle, CY_UART_FLOW_CONTROL_DISABLE))
device->uartFlowControlMode = CY_UART_FLOW_CONTROL_DISABLE;
}
//initialising structure elements
device->spiThreadId = (pthread_t)0;
device->uartThreadId = (pthread_t)0;
device->spiCancelEvent = false;
device->uartCancelEvent = false;
device->spiTransfer = NULL;
device->uartTransfer = NULL;
if (pthread_mutex_init (&device->readLock, NULL)){
CY_DEBUG_PRINT_ERROR ("CY:Error initializing the read mutex .. Function is %s \n", __func__);
libusb_close (devHandle);
free (device);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DRIVER_OPEN_FAILED;
}
if (pthread_mutex_init (&device->writeLock, NULL)){
CY_DEBUG_PRINT_ERROR ("CY:Error initializing the write mutex .. Function is %s \n", __func__);
libusb_close (devHandle);
free (device);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DRIVER_OPEN_FAILED;
}
if (pthread_mutex_init (&device->notificationLock, NULL)){
CY_DEBUG_PRINT_ERROR ("CY:Error initializing the write mutex .. Function is %s \n", __func__);
libusb_close (devHandle);
free (device);
pthread_mutex_unlock (&criticalSection);
return CY_ERROR_DRIVER_OPEN_FAILED;
}
pthread_mutex_unlock (&criticalSection);
return CY_SUCCESS;
}
else{
CY_DEBUG_PRINT_ERROR ("CY:Error iniitalise library by calling CyLibraryInit()....function is %s\n", __func__);
return CY_ERROR_DRIVER_OPEN_FAILED;
}
}
/*
The Api Closes the handle and needs to be called only if CyGetNumDevices
or CyOpen is called
*/
CY_RETURN_STATUS CyClose (
CY_HANDLE handle
)
{
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
if (device->deviceType == CY_TYPE_UART) {
CyUartClearRts (handle);
CyUartClearDtr (handle);
CyUartSetHwFlowControl (handle, CY_UART_FLOW_CONTROL_DISABLE);
}
if (glDriverInit == true){
if (device->deviceType == CY_TYPE_SPI || device->deviceType == CY_TYPE_UART){
if (device->spiThreadId != 0 || device->uartThreadId != 0){
CyAbortEventNotification(handle);
}
}
if (pthread_mutex_destroy (&device->readLock)){
CY_DEBUG_PRINT_ERROR ("CY:Error de initializing the read mutex .. Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (pthread_mutex_destroy (&device->writeLock)){
CY_DEBUG_PRINT_ERROR ("CY:Error de initializing the write mutex .. Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
if (pthread_mutex_destroy (&device->notificationLock)){
CY_DEBUG_PRINT_ERROR ("CY:Error de initializing the write mutex .. Function is %s \n", __func__);
return CY_ERROR_REQUEST_FAILED;
}
libusb_close ((libusb_device_handle*)devHandle);
free (device);
}
return CY_SUCCESS;
}
/*
This Api will reset the pipe and clears the endpoint
*/
CY_RETURN_STATUS CyResetPipe (
CY_HANDLE handle,
UINT8 endPointAddress
)
{
UINT32 rStatus;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
rStatus = libusb_clear_halt ((libusb_device_handle *)devHandle, endPointAddress);
if (rStatus != LIBUSB_SUCCESS){
CY_DEBUG_PRINT_ERROR ("CY:Error in resetting the pipe ... \n");
return CY_ERROR_REQUEST_FAILED;
}
return CY_SUCCESS;
}
/*
This Api will get the library version,patch
and build number
*/
CY_RETURN_STATUS CyGetLibraryVersion (
CY_HANDLE handle,
PCY_LIBRARY_VERSION version
)
{
version->majorVersion = CY_US_VERSION_MAJOR;
version->minorVersion = CY_US_VERSION_MINOR;
version->patch = CY_US_VERSION_PATCH;
version->buildNumber = CY_US_VERSION_BUILD;
return CY_SUCCESS;
}

1
CyUSBSerial_SDK_Linux/linux/library/libcyusbserial.so Normal file
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@@ -0,0 +1 @@
libcyusbserial.so.1

BIN
CyUSBSerial_SDK_Linux/linux/library/libcyusbserial.so.1 Executable file
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5
CyUSBSerial_SDK_Linux/linux/testUtility/90-cyusb.rules Normal file
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# Cypress USB driver for FX2 and FX3 (C) Cypress Semiconductor Corporation / ATR-LABS
# Rules written by V. Radhakrishnan ( rk@atr-labs.com )
# Cypress USB vendor ID = 0x04b4
KERNEL=="*", SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ACTION=="add", ATTR{idVendor}=="04b4", MODE="666", TAG="cyusb_dev", RUN+="/usr/bin/CyUSBSerial.sh A"
KERNEL=="*", SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ACTION=="remove", TAG=="cyusb_dev", RUN+="/usr/bin/CyUSBSerial.sh R"

7
CyUSBSerial_SDK_Linux/linux/testUtility/CyUSBSerial.sh Normal file
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@@ -0,0 +1,7 @@
#!/bin/bash
pid=`pidof CyUSBSerialTestUtility`
if [ "$pid" ]; then
kill -s SIGUSR1 $pid
fi

BIN
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11
CyUSBSerial_SDK_Linux/linux/testUtility/Makefile Normal file
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all:
gcc -g -o CyUSBSerialTestUtility Test_Utility.c -lcyusbserial -w
cp 90-cyusb.rules /etc/udev/rules.d
cp CyUSBSerialTestUtility /usr/bin
cp CyUSBSerial.sh /usr/bin
chmod 777 /usr/bin/CyUSBSerial.sh
clean:
rm -f CyUSBSerialTestUtility
help:
@echo 'make would compile and create the library and create a link'
@echo 'make clean would remove the library and the soft link to the library (soname)'

137
CyUSBSerial_SDK_Linux/linux/testUtility/README.txt Normal file
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================================================================================
Cypress Semiconductor Corporation
CyUSB Serial DVK test utility for I2C/SPI
================================================================================
This utility is used for testing I2C/SPI master mode functionality on the
Cypress CyUSBSerial DVK.
The utility writes to I2C/SPI flash devices on the DVK, reads the data back
and verifies the data read for integrity.
Release components:
================================================================================
1. Test_Utility.c ==> Source file of the command line test utility
2. 90-cyusb.rules ==> udev rules for changing the mode of usb device node.
3. CyUSBSerial.sh ==> Script file for implementing hotplug feature in linux.
4. Makefile ==> make file for compiling and installing the application.
================================================================================
Pre-requisites:
================================================================================
1. libusb-1.0.9 is required for compilation and functioning of the APIs in the
USB Serial library.
2. The CyUSBSerial library (libcyusbserial.so) should be compiled and installed
on the test machine.
3. GNU Make and the GCC tool-chain are used for the build process.
================================================================================
Installation steps:
================================================================================
1. Change to the folder where the utility source files are extracted.
2. Invoke 'make' to build compile the utility, and to install the configuration
files at the appropriate locations. This should be done from a super-user
(sudo) shell, because the configuration files need to be copied into system
folders (/usr/local/bin).
3. Use the CyUSBSerial command to start the test utility.
Note:
The udev daemon needs to be restarted to reflect the udev rule changes that
are installed as part of the make command.
================================================================================
Using the test utility:
================================================================================
1. On starting the utility, the Cypress USB Serial devices that are connected
are listed along with their device numbers, interface numbers and
functionalities (SPI or I2C).
$ CyUSBSerial
----------------------------------------------------------------------
Device Number | VID | PID | INTERFACE NUMBER | FUNCTIONALITY
----------------------------------------------------------------------
0 |4b4 |a | 0 | VENDOR_I2C
0 |4b4 |a | 1 | VENDOR_SPI
0 |4b4 |a | 2 | NA
----------------------------------------------------------------------
2. A menu providing the various operations is also printed:
----------------------------------------------------------------------
1: Print list of devices
2: Select device...No device selected !!
3: Enter I2C/SPI Flash page address and length to write/read.
4: Verify data
5: Exit
----------------------------------------------------------------------
3. On selecting option 2, the utility prompts for the device and interface
number to be selected for testing.
-----------------------------------
Enter Device number to select:
0
Enter interface number:
1
-----------------------------------
Once the selections are made, the menu will be updated with the details.
----------------------------------------------------------------------
1: Print list of devices
2: Change device selection--selected device: [Device number 0] : [Interface No 1] : SPI
3: Enter I2C/SPI Flash page address and length to write/read.
4: Verify data
5: Exit
----------------------------------------------------------------------
4. Option 3 can be selected now to do data read/write to the I2C/SPI flash
device. The utility prompts for the page address to be written as well as
the length of data to be written.
------------------------------------------------
Enter Page address ... (less than 65536)
1234
Enter length to read/write ... (less than 256)
32
------------------------------------------------
Length needs to be less than or equal to 256 bytes in the case of SPI access,
and less than or equal to 64 bytes in the case of I2C access. Page address
needs to be less than 65536 in case of SPI and 256 in case of I2C.
Once the values are selected, the menu is updated with the details as below:
-------------------------------------------------------------------
1: Print list of devices
2: Change device selection--selected device: [Device number 0] : [Interface No 1] : SPI
3: Change Flash page address and length ...Entered is page address 1234 and length 123
4: Verify data
5: Exit
-------------------------------------------------------------------
5. Selecting option 4 causes the utility to write a randomly generated data
sequence to the flash device, read it back, and verify the data read back.
The data pattern written and read back will be displayed as shown below:
--------------------------------------------------------------------
67 c6 69 73 51 ff 4a ec 29 cd ba ab f2 fb e3 46 7c c2 54 f8 1b e8 e7 8d 76 5a 2e 63 33 9f c9 9a
--------------------------------------------------------------------
Data Read back is:
---------------------------------------------------------------------
67 c6 69 73 51 ff 4a ec 29 cd ba ab f2 fb e3 46 7c c2 54 f8 1b e8 e7 8d 76 5a 2e 63 33 9f c9 9a
---------------------------------------------------------------------
Data verified successfully
-------------------------------------------------------------------
6. The utility runs through these menu options until the user selects the
exit option (5).
7. If a new Cypress USB Serial device is attached or an existing device is
removed while the utility is running, a notification is printed on the
console.
---------------------------------------
Device of interest Removed/Added
---------------------------------------
================================================================================
EOF

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CyUSBSerial_SDK_Linux/linux/testUtility/Test_Utility.c Normal file
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/*
* Test utility
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <signal.h>
#include <stdbool.h>
#include <unistd.h>
#include <sys/time.h>
#include <pthread.h>
#include <ctype.h>
#include "../../common/header/CyUSBSerial.h"
#define CY_MAX_DEVICES 30
#define CY_MAX_INTERFACES 4
typedef struct _CY_DEVICE_STRUCT {
int deviceNumber;
int interfaceFunctionality[CY_MAX_INTERFACES];
bool isI2c;
bool isSpi;
int numInterface;
}CY_DEVICE_STRUCT;
CY_DEVICE_STRUCT *glDevice;
int i2cDeviceIndex[CY_MAX_DEVICES][CY_MAX_INTERFACES];
unsigned char *deviceNumber = NULL;
int cyDevices, i2cDevices = 0, numDevices = 0;
int selectedDeviceNum = -1, selectedInterfaceNum = -1;
bool exitApp = false;
unsigned short pageAddress = -1;
short readWriteLength = -1;
bool deviceAddedRemoved = false;
int getUserInput()
{
char userInput[6], x;
int output,i = 0;
bool isDigit = true;
x = getchar();
while (x != '\n'){
if (i < 5){
userInput[i] = x;
i++;
}
if (!isdigit(x))
isDigit = false;
x = getchar();
}
userInput[i] = '\0';
if (isDigit == false)
return -1;
output = atoi(userInput);
return output;
}
void deviceHotPlug () {
CY_RETURN_STATUS rStatus;
deviceAddedRemoved = true;
selectedDeviceNum = -1;
selectedInterfaceNum = -1;
printf ("Device of interest Removed/Added \n");
rStatus = CyGetListofDevices (&numDevices);
if (rStatus != CY_SUCCESS) {
printf ("CY:Error in Getting List of Devices: Error NO:<%d> \n", rStatus);
return rStatus;
}
printListOfDevices (false);
}
int main (int argc, char **agrv)
{
int index = 0, i, j, userInput;
int tempSelectedDeviceNum, tempSelectedInterfaceNum, tempPageAddress, tempLength;
CY_RETURN_STATUS rStatus;
signal (SIGUSR1, deviceHotPlug);
glDevice = (CY_DEVICE_STRUCT *)malloc (CY_MAX_DEVICES *sizeof (CY_DEVICE_STRUCT));
if (glDevice == NULL){
printf ("Memory allocation failed ...!! \n");
return -1;
}
rStatus = CyLibraryInit ();
if (rStatus != CY_SUCCESS) {
printf ("CY:Error in Doing library init Error NO:<%d> \n", rStatus);
return rStatus;
}
rStatus = CyGetListofDevices (&numDevices);
if (rStatus != CY_SUCCESS) {
printf ("CY:Error in Getting List of Devices: Error NO:<%d> \n", rStatus);
return rStatus;
}
printListOfDevices(true);
do {
printf ("-------------------------------------------------------------------\n");
printf ("1: Print list of devices \n");
if (selectedDeviceNum != -1 && selectedInterfaceNum != -1){
printf ("2: Change device selection--selected device: [Device number %d] : [Interface No %d]",\
selectedDeviceNum, selectedInterfaceNum);
if (glDevice[selectedDeviceNum].interfaceFunctionality[selectedInterfaceNum] == CY_TYPE_I2C)
printf (" : I2C\n");
else if (glDevice[selectedDeviceNum].interfaceFunctionality[selectedInterfaceNum] == CY_TYPE_SPI)
printf (" : SPI\n");
else
printf (" : NA\n");
}
else
printf ("2: Select device...No device selected !!\n");
if (readWriteLength != -1 && pageAddress != -1){
printf ("3: Change Flash page address and length ...Entered is page address %d and length %d\n", pageAddress, readWriteLength);
printf ("4: Verify data\n5: Exit\n");
}
else
printf ("3: Enter I2C/SPI Flash page address and length to write/read.\n4: Verify data\n5: Exit\n");
printf ("-------------------------------------------------------------------\n");
userInput = getUserInput();
if (userInput < 1 || userInput > 5){
printf ("Wrong selection code ... Enter again \n");
continue;
}
switch (userInput){
case 1:
printListOfDevices(true);
break;
case 2:
if (cyDevices == 0) {
printf ("No device of interest connected ...!!\n");
continue;
}
printf ("Enter Device number to be selected.. \n");
tempSelectedDeviceNum = getUserInput();
//printf ("Selected device number is %d \n",tempSelectedDeviceNum);
if (tempSelectedDeviceNum >= cyDevices || tempSelectedDeviceNum == -1){
printf ("Wrong device selection \n");
continue;
}
printf ("Enter interface number..\n");
tempSelectedInterfaceNum = getUserInput();
//printf ("Selected device number is %d %d\n",tempSelectedInterfaceNum, glDevice[tempSelectedDeviceNum].numInterface);
if (tempSelectedInterfaceNum >= glDevice[tempSelectedDeviceNum].numInterface ||
tempSelectedInterfaceNum == -1) {
printf ("Wrong interface Selection selection \n");
continue;
}
if ((glDevice[tempSelectedDeviceNum].interfaceFunctionality[tempSelectedInterfaceNum] == -1)){
printf ("Selected device does not have I2C or SPI !!! \n");
continue;
}
if (deviceAddedRemoved == true) {
printf ("Device of interest was added/removed .... Print and select from new list\n");
continue;
}
selectedDeviceNum = tempSelectedDeviceNum;
selectedInterfaceNum = tempSelectedInterfaceNum;
//pageAddress = -1;
//readWriteLength = -1;
break;
case 3:
if (selectedDeviceNum == -1) {
printf ("Select proper device!!! \n");
continue;
}
if (selectedDeviceNum >= cyDevices){
printf ("Select proper device!!! \n");
continue;
}
if (glDevice[selectedDeviceNum].interfaceFunctionality[selectedInterfaceNum] == CY_TYPE_I2C){
printf ("Enter Page address... (less than 256)\n");
tempPageAddress = getUserInput();
printf ("Enter length to read/write...(less than 64)\n");
tempLength = getUserInput();
if (deviceAddedRemoved == true) {
printf ("Device of interest was added/removed .... Print and select from new list\n");
continue;
}
if (tempPageAddress > 256){
printf ("Invalid page address ..Enter page address less than 256 (1 bytes len)\n");
continue;
}
if (tempLength < 0 || tempLength > 64){
printf ("Invalid Length ..Enter length less than 64 bytes\n");
continue;
}
pageAddress = tempPageAddress;
readWriteLength = tempLength;
break;
}
if (glDevice[selectedDeviceNum].interfaceFunctionality[selectedInterfaceNum] == CY_TYPE_SPI){
printf ("Enter Page address... (less than 65536)\n");
tempPageAddress = getUserInput();
printf ("Enter length to read/write...(less than 256)\n");
tempLength = getUserInput();
if (deviceAddedRemoved == true) {
printf ("Device of interest was added/removed .... Print and select from new list\n");
continue;
}
if (tempPageAddress > 65536){
printf ("Invalid page address ..Enter page address less than 65536 (1 bytes len)\n");
continue;
}
if (tempLength < 0 || tempLength > 256){
printf ("Invalid Length ..Enter length less than 256 bytes\n");
continue;
}
pageAddress = tempPageAddress;
readWriteLength = tempLength;
break;
}
case 4:
if (selectedDeviceNum == -1) {
printf ("Select proper device!!! \n");
continue;
}
if (glDevice[selectedDeviceNum].interfaceFunctionality[selectedInterfaceNum] == -1){
printf ("Selected device does not have I2C or SPI !!! \n");
continue;
}
if ((pageAddress == -1) || (readWriteLength == -1)){
printf ("Select proper page address and length !!! \n");
continue;
}
if (glDevice[selectedDeviceNum].interfaceFunctionality[selectedInterfaceNum] == CY_TYPE_I2C){
if (pageAddress > 256){
printf ("Invalid Page address for I2C .. need to be less than 256\n");
continue;
}
if (readWriteLength > 64){
printf ("Invalid read write length for I2C .. need to be less than 64\n");
continue;
}
printf ("Calling I2C \n");
i2cVerifyData(glDevice[selectedDeviceNum].deviceNumber, selectedInterfaceNum);
}
if (glDevice[selectedDeviceNum].interfaceFunctionality[selectedInterfaceNum] == CY_TYPE_SPI){
spiVerifyData(glDevice[selectedDeviceNum].deviceNumber, selectedInterfaceNum);
}
break;
case 5:
exitApp = true;
CyLibraryExit ();
break;
}
}while (exitApp == false);
free (glDevice);
}
int spiWriteEnable (CY_HANDLE handle)
{
unsigned char wr_data,rd_data;
CY_RETURN_STATUS status = CY_SUCCESS;
CY_DATA_BUFFER writeBuf;
CY_DATA_BUFFER readBuf;
writeBuf.buffer = &wr_data;
writeBuf.length = 1;
readBuf.buffer = &rd_data;
readBuf.length = 1;
wr_data = 0x06; /* Write enable */
status = CySpiReadWrite (handle, &readBuf, &writeBuf, 5000);
if (status != CY_SUCCESS)
{
return status;
}
return status;
}
//Helper functions for doing data transfer to/from SPI flash
int spiWaitForIdle (CY_HANDLE handle)
{
char rd_data[2], wr_data[2];
CY_DATA_BUFFER writeBuf, readBuf;
writeBuf.length = 2;
writeBuf.buffer = (unsigned char *)wr_data;
int timeout = 0xFFFF;
CY_RETURN_STATUS status;
readBuf.length = 2;
readBuf.buffer = (unsigned char *)rd_data;
do
{
wr_data[0] = 0x05; /* Status */
status = CySpiReadWrite (handle, &readBuf, &writeBuf, 5000);
if (status != CY_SUCCESS)
{
break;
}
timeout--;
if (timeout == 0)
{
status = CY_ERROR_IO_TIMEOUT;
return status;
}
} while (rd_data[1] & 0x01);
return status;
}
int spiVerifyData (int deviceNumber, int interfaceNum)
{
CY_DATA_BUFFER dataBufferWrite,dataBufferRead;
CY_HANDLE handle;
bool isVerify = true;
unsigned char wbuffer[256 + 4], rbuffer[256 + 4];
int rStatus, length;
memset (rbuffer, 0x00, 256);
memset (wbuffer, 0x00, 256);
rStatus = CyOpen (deviceNumber, interfaceNum, &handle);
if (rStatus != CY_SUCCESS){
printf ("CY_SPI: Open failed \n");
return rStatus;
}
dataBufferWrite.buffer = wbuffer;
dataBufferRead.buffer = rbuffer;
rStatus = spiWaitForIdle (handle);
if (rStatus){
printf("Error in Waiting for EEPOM active state %d \n", rStatus);
CyClose (handle);
return CY_ERROR_REQUEST_FAILED;
}
printf ("Calling spi write enable \n");
rStatus = spiWriteEnable (handle);
if (rStatus){
printf("Error in setting Write Enable %d \n", rStatus);
CyClose (handle);
return CY_ERROR_REQUEST_FAILED;
}
//Write SPI write command
wbuffer[0] = 0x02;
//SPI flash address
wbuffer[1] = (pageAddress >> 8);
wbuffer[2] = (pageAddress) & 0x00FF;
wbuffer[3] = 0;
printf ("The Data written is ...\n");
printf ("\n--------------------------------------------------------------------\n");
for (rStatus = 4; rStatus < (readWriteLength + 4); rStatus++){
wbuffer[rStatus] = rand() % 256;
printf ("%x ",wbuffer[rStatus]);
}
printf ("\n--------------------------------------------------------------------\n");
dataBufferRead.length = (4 + readWriteLength);
dataBufferWrite.length = (4 + readWriteLength);
rStatus = CySpiReadWrite (handle , &dataBufferRead, &dataBufferWrite, 5000);
if (rStatus != CY_SUCCESS){
CyClose (handle);
printf ("Error in doing SPI data write data Write is %d data read is %d\n" , dataBufferWrite.transferCount,dataBufferRead.transferCount);
return CY_ERROR_REQUEST_FAILED;
}
spiWaitForIdle (handle);
//Write SPI read command
wbuffer[0] = 0x03;
dataBufferRead.length = (4 + readWriteLength);
dataBufferWrite.length = (4 + readWriteLength);
rStatus = CySpiReadWrite (handle, &dataBufferRead, &dataBufferWrite, 5000);
if (rStatus != CY_SUCCESS){
CyClose (handle);
printf ("The Error is %d \n", rStatus);
printf ("Error in doing SPI data write data Write is %d data read is %d\n" , dataBufferWrite.transferCount,dataBufferRead.transferCount);
return CY_ERROR_REQUEST_FAILED;
}
printf ("Data Read back is \n");
printf ("\n---------------------------------------------------------------------\n");
for (rStatus = 4; rStatus < (readWriteLength + 4); rStatus++){
printf ("%x ",rbuffer[rStatus]);
if (rbuffer[rStatus] != wbuffer[rStatus]){
isVerify = false;
}
}
printf ("\n---------------------------------------------------------------------\n");
if (isVerify)
printf ("Data verified successfully \n");
else
printf ("Data corruption occured!!\n");
CyClose (handle);
return CY_SUCCESS;
}
int i2cVerifyData (int deviceNumber, int interfaceNum)
{
CY_DATA_BUFFER dataBufferWrite, dataBufferRead;
CY_HANDLE handle;
int length = 0;
bool isVerify = true;
int loopCount = 100, i;
CY_RETURN_STATUS rStatus;
unsigned char bytesPending = 0, address[2], wbuffer[66], rbuffer[66];
CY_I2C_DATA_CONFIG i2cDataConfig;
memset (wbuffer, 0, 66);
memset (rbuffer, 0, 66);
i2cDataConfig.isStopBit = true;
i2cDataConfig.slaveAddress = 0x51;
rStatus = CyOpen (deviceNumber, interfaceNum, &handle);
if (rStatus != CY_SUCCESS){
printf("CY_I2C: Open failed \n");
return rStatus;
}
loopCount = 100;
length = readWriteLength;
wbuffer[0]= pageAddress;
wbuffer[1] = 0;
dataBufferWrite.buffer = wbuffer;
i2cDataConfig.isStopBit = true;
dataBufferWrite.length = (length + 2);
printf ("\n Data that is written on to i2c ...\n");
printf ("\n-----------------------------------------------------------------\n");
for (i = 2; i < (length +2); i++){
wbuffer[i] = rand() % 256;
printf ("%x ", wbuffer[i]);
}
printf ("\n-----------------------------------------------------------------\n");
rStatus = CyI2cWrite (handle, &i2cDataConfig, &dataBufferWrite, 5000);
if (rStatus != CY_SUCCESS){
printf ("Error in doing i2c write \n");
CyClose (handle);
return -1;
}
//We encountered a error in I2C read repeat the procedure again
//Loop here untill Read vendor command passes
i2cDataConfig.isStopBit = false;
dataBufferWrite.length = 2;
do {
rStatus = CyI2cWrite (handle, &i2cDataConfig, &dataBufferWrite, 5000);
loopCount--;
}while (rStatus != CY_SUCCESS && loopCount != 0);
if (loopCount == 0 && rStatus != CY_SUCCESS){
printf ("Error in sending read command \n");
CyClose (handle);
return -1;
}
dataBufferRead.buffer = rbuffer;
rbuffer[0]= address[0];
rbuffer[1] = 0;
i2cDataConfig.isStopBit = true;
i2cDataConfig.isNakBit = true;
dataBufferRead.length = length;
dataBufferRead.buffer = rbuffer;
memset (rbuffer, 0, 64);
rStatus = CyI2cRead (handle, &i2cDataConfig, &dataBufferRead, 5000);
if (rStatus != CY_SUCCESS){
printf ("Error in doing i2c read ... Error is %d \n", rStatus);
CyClose (handle);
return -1;
}
printf ("\n Data that is read from i2c ...\n");
printf ("\n-----------------------------------------------------------------\n");
for (rStatus = 0; rStatus < length; rStatus++){
printf ("%x ", rbuffer[rStatus]);
if (rbuffer[rStatus] != wbuffer[rStatus + 2]){
isVerify = false;
}
}
printf ("\n-----------------------------------------------------------------\n");
if (!isVerify)
printf ("Data corruption occured ..!!!\n");
else
printf ("Data verified successfully \n");
CyClose (handle);
}
bool isCypressDevice (int deviceNum) {
CY_HANDLE handle;
unsigned char interfaceNum = 0;
unsigned char sig[6];
CY_RETURN_STATUS rStatus;
rStatus = CyOpen (deviceNum, interfaceNum, &handle);
if (rStatus == CY_SUCCESS){
rStatus = CyGetSignature (handle, sig);
if (rStatus == CY_SUCCESS){
CyClose (handle);
return true;
}
else {
CyClose (handle);
return false;
}
}
else
return false;
}
void printListOfDevices (bool isPrint)
{
int index_i = 0, index_j = 0, i, j, countOfDevice = 0, devNum;
int length, index = 0, numInterfaces, interfaceNum;
bool set1 = false;
unsigned char deviceID[CY_MAX_DEVICES];
unsigned char functionality[64];
CY_DEVICE_INFO deviceInfo;
CY_DEVICE_CLASS deviceClass[CY_MAX_INTERFACES];
CY_DEVICE_TYPE deviceType[CY_MAX_INTERFACES];
CY_RETURN_STATUS rStatus;
deviceAddedRemoved = false;
CyGetListofDevices (&numDevices);
//printf ("The number of devices is %d \n", numDevices);
for (i = 0; i < numDevices; i++){
for (j = 0; j< CY_MAX_INTERFACES; j++)
glDevice[i].interfaceFunctionality[j] = -1;
}
if (isPrint){
printf ("\n\n---------------------------------------------------------------------------------\n");
printf ("Device Number | VID | PID | INTERFACE NUMBER | FUNCTIONALITY \n");
printf ("---------------------------------------------------------------------------------\n");
}
cyDevices = 0;
for (devNum = 0; devNum < numDevices; devNum++){
rStatus = CyGetDeviceInfo (devNum, &deviceInfo);
interfaceNum = 0;
if (!rStatus)
{
if (!isCypressDevice (devNum)){
continue;
}
strcpy (functionality, "NA");
numInterfaces = deviceInfo.numInterfaces;
glDevice[index].numInterface = numInterfaces;
cyDevices++;
while (numInterfaces){
if (deviceInfo.deviceClass[interfaceNum] == CY_CLASS_VENDOR)
{
glDevice[index].deviceNumber = devNum;
switch (deviceInfo.deviceType[interfaceNum]){
case CY_TYPE_I2C:
glDevice[index].interfaceFunctionality[interfaceNum] = CY_TYPE_I2C;
strcpy (functionality, "VENDOR_I2C");
glDevice[index].isI2c = true;
break;
case CY_TYPE_SPI:
glDevice[index].interfaceFunctionality[interfaceNum] = CY_TYPE_SPI;
strcpy (functionality, "VENDOR_SPI");
glDevice[index].isSpi = true;
break;
default:
strcpy (functionality, "NA");
break;
}
}
else if (deviceInfo.deviceClass[interfaceNum] == CY_CLASS_CDC){
strcpy (functionality, "NA");
}
if (isPrint) {
printf ("%d |%x |%x | %d | %s\n", \
index, \
deviceInfo.vidPid.vid, \
deviceInfo.vidPid.pid, \
interfaceNum, \
functionality \
);
}
interfaceNum++;
numInterfaces--;
}
index++;
}
}
if (isPrint){
printf ("---------------------------------------------------------------------------------\n\n");
}
}