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chip.c
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chip.c
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/*
* Copyright 2019-2021 NXP.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* Neither the name of the NXP Semiconductor nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<ctype.h>
#include "bcu_parser.h"
#include "chip.h"
#include "port.h"
#include "ftdi_def.h"
#define MAX_FTDI_BUFFER_SIZE 1024
extern char GV_LOCATION_ID[];
struct name_and_init_func chip_list[] =
{
"pca9548", pca9548_create,
"ft4232h_i2c", ft4232h_i2c_create,
"ft4232h_gpio", ft4232h_gpio_create,
"ft4232h_eeprom", ft4232h_eeprom_create,
"pac1934", pac1934_create,
"pca6408a", pca6408a_create,
"pca6416a", pca6416a_create,
"pca9655e", pca6416a_create,
"pcal6524h", pcal6524h_create,
"adp5585", adp5585_create,
"at24cxx", at24cxx_create,
"pct2075", pct2075_create,
};
int num_of_chips = sizeof(chip_list) / sizeof(struct name_and_init_func);
//////////////////////////PCT2075//////////////////////////////////
void* pct2075_create(char* chip_specification, void* parent)
{
struct pct2075* temp = (struct pct2075*)malloc(sizeof(struct pct2075));
if (temp == NULL)
{
printf("malloc failed\n");
return NULL;
}
temp->temp_dev.device.parent = parent;
temp->temp_dev.temp_read = temp_read;
temp->temp_dev.temp_enable = temp_enable;
temp->addr = extract_parameter_value(chip_specification, "addr");
//printf("AT24CXX created!\n");
return temp;
}
float temp_read(void* pct2075)
{
struct pct2075* temp = pct2075;
struct i2c_device* parent = (void*)temp->temp_dev.device.parent;
char addr_plus_write = (temp->addr) << 1;
char addr_plus_read = (temp->addr << 1) + 1;
int status, i = 0;
unsigned char data_buffer[2] = {0};
short data = 0;
parent->i2c_start(parent);
status = parent->i2c_write(parent, addr_plus_write, I2C_TYPE_TEMP);
if (status)
{
// printf("oh no! no ack received!\n");
return -10;
}
parent->i2c_write(parent, 0x00, I2C_TYPE_TEMP);
parent->i2c_start(parent);
parent->i2c_write(parent, addr_plus_read, I2C_TYPE_TEMP);
parent->i2c_read(parent, &data_buffer[0], 0, I2C_TYPE_TEMP);
parent->i2c_read(parent, &data_buffer[1], 1, I2C_TYPE_TEMP);
parent->i2c_stop(parent);
data = (data_buffer[0] << 8 | data_buffer[1]) >> 5;
if (data >= 1024)
return (float)((data - 2048) / 8.0);
else
return (float)((data) / 8.0);
return 0;
}
int temp_enable(void* pct2075, int enable)
{
struct pct2075* temp = pct2075;
struct i2c_device* parent = (void*)temp->temp_dev.device.parent;
char addr_plus_write = (temp->addr) << 1;
int status, i = 0;
unsigned char data_buffer[2] = {0};
short data = 0;
parent->i2c_start(parent);
status = parent->i2c_write(parent, addr_plus_write, I2C_TYPE_TEMP);
if (status)
{
// printf("oh no! no ack received!\n");
return -10;
}
parent->i2c_write(parent, 0x01, I2C_TYPE_TEMP);
parent->i2c_write(parent, enable ? 0x1 : 0x0, I2C_TYPE_TEMP);
parent->i2c_stop(parent);
return 0;
}
//////////////////////////AT24CXX//////////////////////////////////
void* at24cxx_create(char* chip_specification, void* parent)
{
struct at24cxx* at24 = (struct at24cxx*)malloc(sizeof(struct at24cxx));
if (at24 == NULL)
{
printf("malloc failed\n");
return NULL;
}
at24->eeprom_device.device.parent = parent;
at24->eeprom_device.eeprom_erase = at24cxx_erase;
at24->eeprom_device.eeprom_read = at24cxx_read;
at24->eeprom_device.eeprom_write = at24cxx_write;
at24->eeprom_device.eeprom_check_board = at24cxx_check_board;
at24->addr = extract_parameter_value(chip_specification, "addr");
at24->type = extract_parameter_value(chip_specification, "type");
//printf("AT24CXX created!\n");
return at24;
}
int at24cxx_erase(void* at24cxx)
{
unsigned char buf[256];
for (int i = 0; i < 256; i++)
buf[i] = 0xFF;
return at24cxx_write(at24cxx, buf, 0, 64, NULL);
}
int at24cxx_read(void* at24cxx, unsigned char* data_buffer, unsigned int startaddr, int size, unsigned char* sn_buf)
{
struct at24cxx* at24 = at24cxx;
struct i2c_device* parent = (void*)at24->eeprom_device.device.parent;
char addr_plus_write = (at24->addr) << 1;
char addr_plus_read = (at24->addr << 1) + 1;
int status, i = 0;
parent->i2c_start(parent);
status = parent->i2c_write(parent, addr_plus_write, I2C_TYPE_AT24);
if (status)
{
// printf("oh no! no ack received!\n");
return -10;
}
if (at24->type == EEPROM_TYPE_AT24C32) {
status = parent->i2c_write(parent, 0, I2C_TYPE_AT24);
if (status)
return -10;
}
status = parent->i2c_write(parent, startaddr, I2C_TYPE_AT24);
if (status)
return -10;
parent->i2c_start(parent);
status = parent->i2c_write(parent, addr_plus_read, I2C_TYPE_AT24);
if (status)
return -10;
for (i = 0; i < size - 1; i++)
parent->i2c_read(parent, &data_buffer[i], 0, I2C_TYPE_AT24);
parent->i2c_read(parent, &data_buffer[i], 1, I2C_TYPE_AT24);
parent->i2c_stop(parent);
msleep(10);
return 0;
}
int at24cxx_write(void* at24cxx, unsigned char* data_buffer, unsigned int startaddr, int size, unsigned char* sn_buf)
{
struct at24cxx* at24 = at24cxx;
struct i2c_device* parent = (void*)at24->eeprom_device.device.parent;
char addr_plus_write = (at24->addr) << 1;
char addr_plus_read = (at24->addr << 1) + 1;
int status, i = 0;
parent->i2c_start(parent);
status = parent->i2c_write(parent, addr_plus_write, I2C_TYPE_AT24);
if (status)
{
// printf("oh no! no ack received!\n");
return -10;
}
if (at24->type == EEPROM_TYPE_AT24C32)
parent->i2c_write(parent, 0, I2C_TYPE_AT24);
parent->i2c_write(parent, startaddr, I2C_TYPE_AT24);
for (i = 0; i < size; i++)
{
if (i != 0 && (startaddr + i) % 8 == 0)//AT24C02每8字节换页
{
parent->i2c_stop(parent);
msleep(10);
parent->i2c_start(parent);
parent->i2c_write(parent, addr_plus_write, I2C_TYPE_AT24);
if (at24->type == EEPROM_TYPE_AT24C32)
parent->i2c_write(parent, 0, I2C_TYPE_AT24);
parent->i2c_write(parent, startaddr + i, I2C_TYPE_AT24);
}
parent->i2c_write(parent, data_buffer[i], I2C_TYPE_AT24);
}
parent->i2c_stop(parent);
msleep(10);
return 0;
}
int at24cxx_check_board(void* at24cxx)
{
struct at24cxx* at24 = at24cxx;
struct i2c_device* parent = (void*)at24->eeprom_device.device.parent;
char addr_plus_write = (at24->addr) << 1;
char addr_plus_read = (at24->addr << 1) + 1;
//refresh the powerister
parent->i2c_start(parent);
if(parent->i2c_write(parent, addr_plus_write, I2C_TYPE_AT24))
{
parent->i2c_stop(parent);
// printf("pac 1934 failure get ack\n");
return -1;
}
else
{
parent->i2c_stop(parent);
return 0;
}
}
//////////////////////////PCA9548//////////////////////////////////
void* pca9548_create(char* chip_specification, void* parent)
{
struct pca9548* pca = (struct pca9548*)malloc(sizeof(struct pca9548));
if (pca == NULL)
{
printf("malloc failed\n");
return NULL;
}
pca->i2c_device.device.parent = parent;
pca->i2c_device.i2c_read = pca9548_read;
pca->i2c_device.i2c_readn = pca9548_readn;
pca->i2c_device.i2c_write = pca9548_write;
pca->i2c_device.i2c_start = pca9548_start;
pca->i2c_device.i2c_stop = pca9548_stop;
pca->channel = extract_parameter_value(chip_specification, "channel");
pca->addr = extract_parameter_value(chip_specification, "addr");
pca9548_set_channel(pca);
//printf("pca9548 created!\n");
return pca;
}
int pca9548_read(void* pca9548, unsigned char* data_buffer, int is_nack, int type)
{
struct pca9548* pca = pca9548;
struct i2c_device* parent = (void*)pca->i2c_device.device.parent;
parent->i2c_read(parent, data_buffer, is_nack, type);
return 0;
}
int pca9548_readn(void* pca9548, unsigned char* data_buffer, int type, int len)
{
struct pca9548* pca = pca9548;
struct i2c_device* parent = (void*)pca->i2c_device.device.parent;
parent->i2c_readn(parent, data_buffer, type, len);
return 0;
}
int pca9548_write(void* pca9548, unsigned char data, int type)
{
struct pca9548* pca = pca9548;
struct i2c_device* parent = (void*)pca->i2c_device.device.parent;
return parent->i2c_write(parent, data, type);
}
int pca9548_start(void* pca9548)
{
struct pca9548* pca = pca9548;
struct i2c_device* parent = (void*)pca->i2c_device.device.parent;
parent->i2c_start(parent);
return 0;
}
int pca9548_stop(void* pca9548)
{
struct pca9548* pca = pca9548;
struct i2c_device* parent = (void*)pca->i2c_device.device.parent;
parent->i2c_stop(parent);
return 0;
}
int pca9548_set_channel(struct pca9548* pca9548)
{
//my observation is that we must wait for 20ms from last set_channel to guarantee sucessfully switch
//msleep(20);
struct pca9548* pca = pca9548;
struct i2c_device* parent = (void*)pca->i2c_device.device.parent;
unsigned char addr_plus_write = pca->addr << 1;
unsigned char change_channel_cmd = 1 << (pca->channel);
int status;
parent->i2c_start(parent);
status = parent->i2c_write(parent, addr_plus_write, I2C_TYPE_PCA9548);
if (status)
{
printf("oh no! no ack received!\n");
}
parent->i2c_write(parent, change_channel_cmd, I2C_TYPE_PCA9548);
parent->i2c_stop(parent);
return 0;
}
////////////////////////////////ft4232h_eeprom///////////////////////////////////
struct ftdi_info g_ftdi_info[MAX_FT_I2C_CHANNEL_NUMBER];
void* ft4232h_eeprom_create(char* chip_specification, void* parent)
{
int status = 0;
struct ft4232h_eeprom* ftee = malloc(sizeof(struct ft4232h_eeprom));
if (ftee == NULL)
{
printf("malloc failed\n");
return NULL;
}
ftee->ftdi_info = &g_ftdi_info[0];
ftee->eeprom_device.device.parent = parent;
ftee->eeprom_device.eeprom_read = ft4232h_eeprom_read;
ftee->eeprom_device.eeprom_write = ft4232h_eeprom_write;
ftee->eeprom_device.eeprom_erase = ft4232h_eeprom_erase;
ft_init(ftee->ftdi_info);
if (!ftee->ftdi_info->isinit)
{
if (strlen(GV_LOCATION_ID) == 0) {
#if defined(__linux__) || defined(__APPLE__)
status = ft_open_channel(ftee->ftdi_info, 0);
#else
status = ft_open_channel(ftee->ftdi_info, 2);
#endif
}
else {
#if defined(__linux__) || defined(__APPLE__)
status = ft_open_channel_by_id(ftee->ftdi_info, 0, GV_LOCATION_ID);
#else
status = ft_open_channel_by_id(ftee->ftdi_info, 2, GV_LOCATION_ID);
#endif
}
}
if (status != 0)
{
printf("failed to open ftdi device, err = %d\n", status);
#if defined(__linux__) || defined(__APPLE__)
printf("***please make sure you run bcu with sudo\n");
#endif
free(ftee);
return NULL;
}
return ftee;
}
int ft4232h_eeprom_read(void* ft_eeprom, unsigned char* data_buffer, unsigned int startaddr, int size, unsigned char* sn_buf)
{
struct ft4232h_eeprom* eeprom = ft_eeprom;
struct ftdi_info *ftdi = eeprom->ftdi_info;
return ft_read_eeprom(ftdi, startaddr, data_buffer, size, sn_buf);
}
int ft4232h_eeprom_write(void* ft_eeprom, unsigned char* data_buffer, unsigned int startaddr, int size, unsigned char* sn_buf)
{
struct ft4232h_eeprom* eeprom = ft_eeprom;
struct ftdi_info *ftdi = eeprom->ftdi_info;
return ft_write_eeprom(ftdi, startaddr, data_buffer, size, sn_buf);
}
int ft4232h_eeprom_erase(void* ft_eeprom)
{
struct ft4232h_eeprom* eeprom = ft_eeprom;
struct ftdi_info *ftdi = eeprom->ftdi_info;
return ft_erase_eeprom(ftdi);
}
////////////////////////////////ft4232H///////////////////////////////////
void* ft4232h_i2c_create(char* chip_specification, void* parent)
{
struct ft4232h* ft = malloc(sizeof(struct ft4232h));
if (ft == NULL)
{
printf("malloc failed\n");
return NULL;
}
ft->i2c_device.device.parent = parent;
ft->i2c_device.i2c_read = ft4232h_i2c_read;
ft->i2c_device.i2c_readn = ft4232h_i2c_readn;
ft->i2c_device.i2c_write = ft4232h_i2c_write;
ft->i2c_device.i2c_start = ft4232h_i2c_start;
ft->i2c_device.i2c_stop = ft4232h_i2c_stop;
ft->i2c_device.device.free = ft4232h_i2c_free;
ft->channel = extract_parameter_value(chip_specification, "channel");
if (extract_parameter_value(chip_specification, "dir_bitmask") == -1)
{
printf("set dir_bitmask as default value 0x00\n");
ft->dir_bitmask = 0x00;//default should be zero if parameter is not entered;
}
else
ft->dir_bitmask = extract_parameter_value(chip_specification, "dir_bitmask");
if (extract_parameter_value(chip_specification, "val_bitmask") == -1)
{
printf("set val_bitmask as default value 0x00\n");
ft->val_bitmask = 0x00;//default should be zero if parameter is not entered;
}
else
ft->val_bitmask = extract_parameter_value(chip_specification, "val_bitmask");
ft->ftdi_info = &g_ftdi_info[ft->channel];
for (int i = 0; i < MAX_FT_I2C_CHANNEL_NUMBER; i++)
{
if (g_ftdi_info[i].isinit & 0xF0)
{
g_ftdi_info[i].isinit = 0x1;
if (ft->ftdi_info->isinit & 0xF)
ft->ftdi_info->isinit = 0x10;
}
}
if (!(ft->ftdi_info->isinit & 0xF))
{
if (!(ft->ftdi_info->isinit & 0xF0))
{
ft_init(ft->ftdi_info);
int status = 0;
if (strlen(GV_LOCATION_ID) == 0) {
status = ft_open_channel(ft->ftdi_info, ft->channel + 1);
}
else {
status = ft_open_channel_by_id(ft->ftdi_info, ft->channel + 1, GV_LOCATION_ID);
}
if (status != 0)
{
printf("failed to open ftdi device!\n");
#if defined(__linux__) || defined(__APPLE__)
printf("***please make sure you run bcu with sudo\n");
#endif
free(ft);
return NULL;
}
}
ft4232h_i2c_init(ft);
ft->ftdi_info->isinit = 0x1;
}
//printf("ft4232h created!\n");
return ft;
}
void ft4232h_i2c_remove_all(int enable_1_exit_handler)
{
int i;
for (i = 0; i < MAX_FT_I2C_CHANNEL_NUMBER; i++)
{
if (!enable_1_exit_handler && i == 1)
continue;
if (g_ftdi_info[i].isinit)
{
ft_close(&g_ftdi_info[i]);
g_ftdi_info[i].isinit = 0;
}
// ft4232h_i2c_free(&g_ft[i]);
}
}
int ft4232h_i2c_read(void* ft4232h, unsigned char* data_buffer, int is_nack, int type)
{
struct ft4232h* ft = ft4232h;
unsigned char buffer[MAX_FTDI_BUFFER_SIZE];
unsigned char in_buffer[MAX_FTDI_BUFFER_SIZE];
int i = 0, ftStatus = 0;
#ifdef _WIN32
if (type == I2C_TYPE_GPIO)
#endif
ft_clear_buffer(ft->ftdi_info);
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLLOW_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAIN | ft->dir_bitmask;
buffer[i++] = MPSSE_CMD_DATA_IN_BITS_POS_EDGE;
buffer[i++] = DATA_SIZE_8BITS;
buffer[i++] = MPSSE_CMD_SEND_IMMEDIATE;
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLLOW_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
buffer[i++] = MPSSE_CMD_DATA_OUT_BITS_NEG_EDGE;
buffer[i++] = 0;// 0 means send one bit
if (is_nack)
buffer[i++] = 0x80;// MSB zero means ACK
else
buffer[i++] = 0x00;// MSB zero means ACK
ftStatus = ft_write(ft->ftdi_info, buffer, i); //Send off the commands
if (ftStatus < 0) return ftStatus;
ftStatus = ft_read(ft->ftdi_info, in_buffer, 1); //Read one byte
if (ftStatus < 0) return ftStatus;
*data_buffer = in_buffer[0];
#ifdef _WIN32
if (type == I2C_TYPE_GPIO)
#endif
ft_clear_buffer(ft->ftdi_info);
return 0;
}
int ft4232h_i2c_readn(void* ft4232h, unsigned char* data_buffer, int type, int len)
{
struct ft4232h* ft = ft4232h;
unsigned char buffer[MAX_FTDI_BUFFER_SIZE] = {0};
unsigned char in_buffer[MAX_FTDI_BUFFER_SIZE] = {0};
int i = 0, ftStatus = 0, j;
// #ifdef _WIN32
// if (type == I2C_TYPE_GPIO)
// #endif
// ft_clear_buffer(ft->ftdi_info);
for (j = 0; j < len; j++)
{
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLLOW_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAIN | ft->dir_bitmask;
buffer[i++] = MPSSE_CMD_DATA_IN_BITS_POS_EDGE;
buffer[i++] = DATA_SIZE_8BITS;
buffer[i++] = MPSSE_CMD_SEND_IMMEDIATE;
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLLOW_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
buffer[i++] = MPSSE_CMD_DATA_OUT_BITS_NEG_EDGE;
buffer[i++] = 0;// 0 means send one bit
if (j < len - 1)
buffer[i++] = 0x00;// MSB zero means ACK
else
buffer[i++] = 0xFF;// MSB zero means ACK
}
ftStatus = ft_write(ft->ftdi_info, buffer, i); //Send off the commands
if (ftStatus < 0)
return ftStatus;
us_sleep(500);
ftStatus = ft_read(ft->ftdi_info, in_buffer, len); //Read one byte
if (ftStatus < 0)
return ftStatus;
memcpy(data_buffer, in_buffer, len);
#ifdef _WIN32
if (type == I2C_TYPE_GPIO)
#endif
ft_clear_buffer(ft->ftdi_info);
return 0;
}
int ft4232h_i2c_write(void* ft4232h, unsigned char data, int type)
{
struct ft4232h* ft = ft4232h;
unsigned char buffer[MAX_FTDI_BUFFER_SIZE];
unsigned char in_buffer[MAX_FTDI_BUFFER_SIZE];
int i = 0, ftStatus = 0;
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE; //Command to set directions of lower 8 pins and force value on bits set as output
buffer[i++] = VALUE_SCLLOW_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
/* Command to write 8bits */
buffer[i++] = MPSSE_CMD_DATA_OUT_BITS_NEG_EDGE;/* MPSSE command */
buffer[i++] = DATA_SIZE_8BITS;
buffer[i++] = data;
/* Set SDA to input mode before reading ACK bit */
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;/* MPSSE command */
buffer[i++] = VALUE_SCLLOW_SDALOW | ft->val_bitmask; /*Value*/
buffer[i++] = DIRECTION_SCLOUT_SDAIN | ft->dir_bitmask; /*Direction*/
/* Command to get ACK bit */
buffer[i++] = MPSSE_CMD_DATA_IN_BITS_POS_EDGE;/* MPSSE command */
buffer[i++] = DATA_SIZE_1BIT; /*Read only one bit */
/*Command MPSSE to send data to PC immediately */
buffer[i++] = MPSSE_CMD_SEND_IMMEDIATE;
/*set direction*/
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;/* MPSSE command */
buffer[i++] = VALUE_SCLLOW_SDAHIGH | ft->val_bitmask; /*Value*/
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask; /*Direction*/
ftStatus = ft_write(ft->ftdi_info, buffer, i); //Send off the commands
if (ftStatus < 0) return ftStatus;
ftStatus = ft_read(ft->ftdi_info, in_buffer, 1);
if (ftStatus < 0) return ftStatus;
if (((in_buffer[0] & 0x1) != 0)) //Check ACK bit 0 on data byte read out
{
// printf("can't get the ACK bit after write\n");
return -1; /*Error, can't get the ACK bit */
}
#ifdef _WIN32
if (type == I2C_TYPE_GPIO)
#endif
ft_clear_buffer(ft->ftdi_info);
return 0;
}
int ft4232h_i2c_start(void* ft4232h)
{
struct ft4232h* ft = ft4232h;
unsigned char buffer[MAX_FTDI_BUFFER_SIZE];
int i = 0, ftStatus = 0;
for (int j = 0; j < 40; j++)
{
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLHIGH_SDAHIGH | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
}
for (int j = 0; j < 20; j++)
{
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLHIGH_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
}
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLLOW_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
ftStatus = ft_write(ft->ftdi_info, buffer, i); //Send off the commands
if (ftStatus < 0)
return ftStatus;
return 0;
}
int ft4232h_i2c_stop(void* ft4232h)
{
struct ft4232h* ft = ft4232h;
unsigned char buffer[MAX_FTDI_BUFFER_SIZE];
int i = 0, ftStatus = 0;
/* SCL low, SDA low */
for (int j = 0; j < 25; j++)
{
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLLOW_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
}
/* SCL high, SDA low */
for (int j = 0; j < 25; j++)
{
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLHIGH_SDALOW | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
}
/* SCL high, SDA high */
for (int j = 0; j < 25; j++)
{
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE;
buffer[i++] = VALUE_SCLHIGH_SDAHIGH | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
}
//buffer[i++]=0x80;
//buffer[i++]=0x00;
//buffer[i++]=0x10; /* Tristate the SCL & SDA pins */
ftStatus = ft_write(ft->ftdi_info, buffer, i); //Send off the commands
if (ftStatus < 0)
return ftStatus;
return 0;
}
int ft4232h_i2c_init(struct ft4232h* ft)
{
unsigned char buffer[MAX_FTDI_BUFFER_SIZE];
int i = 0, ftStatus = 0;
ft_set_bitmode(ft->ftdi_info, 0, 0); //resetting the controller
ft_set_bitmode(ft->ftdi_info, 0, BM_MPSSE);//set as MPSSE
buffer[i++] = MPSSE_CMD_DISABLE_CLOCK_DIVIDE_BY_5; //Ensure disable clock divide by 5 for 60Mhz master clock
buffer[i++] = MPSSE_CMD_DISABLE_ADAPTIVE_CLOCKING; //Ensure turn off adaptive clocking
buffer[i++] = MPSSE_CMD_ENABLE_3PHASE_CLOCKING; //PAC 1934 need it. Enable 3 phase data clock, used by I2C to allow data on one clock edges
ftStatus = ft_write(ft->ftdi_info, buffer, i);
if (ftStatus < 0)
return ftStatus;
i = 0; //Clear output buffer
buffer[i++] = MPSSE_CMD_SET_DATA_BITS_LOWBYTE; //Command to set directions of lower 8 pins and force value on bits set as output
buffer[i++] = VALUE_SCLHIGH_SDAHIGH | ft->val_bitmask;
buffer[i++] = DIRECTION_SCLOUT_SDAOUT | ft->dir_bitmask;
// The SK clock frequency can be worked out by below algorithm with divide by 5 set as off
// SK frequency = 60MHz /((1 + [(1 +0xValueH*256) OR 0xValueL])*2)
buffer[i++] = MPSSE_CMD_SET_CLOCK_DIVISOR; //Command to set clock divisor
buffer[i++] = (unsigned char)(CLOCK_DIVISOR_400K & '\xFF'); //Set 0xValueL of clock divisor
buffer[i++] = (unsigned char)((CLOCK_DIVISOR_400K >> 8) & '\xFF'); //Set 0xValueH of clock divisor
ftStatus = ft_write(ft->ftdi_info, buffer, i);
if (ftStatus < 0)
return ftStatus;
i = 0; //Clear output buffer
msleep(20); //Delay for a while
//Turn off loop back in case
buffer[i++] = MPSEE_CMD_DISABLE_LOOPBACK; //Command to turn off loop back of TDI/TDO connection
ftStatus = ft_write(ft->ftdi_info, buffer, i);
if (ftStatus < 0)
return ftStatus;
msleep(30); //Delay for a while
//printf("I2C initialization finished!\n");
return 0;
}
int ft4232h_i2c_free(void* ft4232h)
{
struct ft4232h* ft = ft4232h;
// int ftStatus = 0;
// ftStatus = ft_close(ft->ftdi_info);
// if (ftStatus < 0)
// return ftStatus;
ft->ftdi_info = NULL;
return 0;
}
///////////////////////////////ft4232H_GPIO/////////////////////////////////
void* ft4232h_gpio_create(char* chip_specification, void* parent)
{
struct ft4232h_gpio* ft = malloc(sizeof(struct ft4232h_gpio));
if (ft == NULL)
{
printf("malloc failed\n");
return NULL;
}
ft->gpio_device.device.parent = parent;
ft->gpio_device.gpio_read=ft4232h_gpio_read;
ft->gpio_device.gpio_write = ft4232h_gpio_write;
//ft->gpio_device.gpio_toggle=ft4232h_gpio_toggle;
ft->gpio_device.device.free = ft4232h_gpio_free;
ft->gpio_device.pin_bitmask = extract_parameter_value(chip_specification, "pin_bitmask");
ft->channel = extract_parameter_value(chip_specification, "channel");
ft->ftdi_info = &g_ftdi_info[ft->channel];
if (!ft->ftdi_info->isinit)
{
ft_init(ft->ftdi_info);
int status = 0;
if (strlen(GV_LOCATION_ID) == 0) {
status = ft_open_channel(ft->ftdi_info, ft->channel + 1);
}
else {
status = ft_open_channel_by_id(ft->ftdi_info, ft->channel + 1, GV_LOCATION_ID);
}
if (status != 0)
{
printf("failed to open ftdi device!\n");
#if defined(__linux__) || defined(__APPLE__)
printf("***please make sure you run bcu with sudo\n");
#endif
free(ft);
return NULL;
}
ft->ftdi_info->isinit = ft->ftdi_info->isinit << 4;
}
if (ft->ftdi_info->isinit & 0xF)
{
ft_set_bitmode(ft->ftdi_info, 0, 0);
ft->ftdi_info->isinit = ft->ftdi_info->isinit << 4;
}
return ft;
}
int ft4232h_gpio_write(void* ft4232h, unsigned char bit_value)
{
struct ft4232h_gpio* ft = ft4232h;
int mask = 0xFF;
if (ft_set_bitmode(ft->ftdi_info, mask, BM_BITBANG) < 0)
printf("failed to set bitmode\n");
unsigned char current_output;
ft_read_pins(ft->ftdi_info, ¤t_output);
//printf("previous output: %x\n", current_output);
unsigned char data;
data = (current_output & (~ft->gpio_device.pin_bitmask)) | (bit_value & ft->gpio_device.pin_bitmask);
if (ft_write(ft->ftdi_info, &data, 1) < 0)
{
printf("failed to write\n");
return -1;
}
return 0;
}
int ft4232h_gpio_read(void* ft4232h, unsigned char* bit_value_buffer)
{
struct ft4232h_gpio* ft = ft4232h;
unsigned char current_output;
ft_read_pins(ft->ftdi_info, ¤t_output);
bit_value_buffer[0] = current_output & ft->gpio_device.pin_bitmask;
return 0;
}
int ft4232h_gpio_toggle(void* ft4232h)
{
printf("toggle is not yet implemented!\n");
return 0;
}
int ft4232h_gpio_free(void* ft4232h)
{
struct ft4232h_gpio* ft = ft4232h;
// ft_close(ft->ftdi_info);
ft->ftdi_info = NULL;
return 0;
}
////////////////////////////////PAC1934///////////////////////////////////
void* pac1934_create(char* chip_specification, void* parent)
{
struct pac1934* pac = (struct pac1934*)malloc(sizeof(struct pac1934));
if (pac == NULL)
{
printf("malloc failed\n");
return NULL;
}
pac->power_device.device.parent = parent;
pac->power_device.power_get_addr = get_pac1934_addr;
pac->power_device.power_get_group = get_pac1934_group;
pac->power_device.power_get_sensor = get_pac1934_sensor;
pac->power_device.power_get_cur_res = get_pac1934_cur_res;
pac->power_device.power_get_unused_res = get_pac1934_unused_res;
pac->power_device.power_set_hwfilter = pac1934_set_hwfilter;
pac->power_device.power_set_bipolar = pac1934_set_bipolar;
pac->power_device.power_write_bipolar = pac1934_write_bipolar;
pac->power_device.power_write_no_skip = pac1934_write_no_skip;
pac->power_device.power_set_snapshot = pac1934_snapshot;
pac->power_device.power_get_data = pac1934_get_data;
pac->power_device.switch_sensor = pac1934_switch;
pac->group = extract_parameter_value(chip_specification, "group");
pac->sensor = extract_parameter_value(chip_specification, "sensor");
pac->addr = extract_parameter_value(chip_specification, "addr");
pac->rs1 = extract_parameter_value(chip_specification, "rsense1");
pac->group2 = extract_parameter_value(chip_specification, "group2");
pac->sensor2 = extract_parameter_value(chip_specification, "sensor2");
pac->rs2 = extract_parameter_value(chip_specification, "rsense2");
pac->cur_group = pac->group;
pac->cur_sensor = pac->sensor;
pac->cur_rs = pac->rs1;
//printf("pac1934 created!\n");
return pac;
}
int pac1934_switch(void *pac1934, int i)
{
struct pac1934* pac = pac1934;
if (i == 0)
{
pac->cur_group = pac->group;
pac->cur_sensor = pac->sensor;
pac->cur_rs = pac->rs1;
}
else if (i == 1)
{
if(pac->group2 != -1)
pac->cur_group = pac->group2;
if(pac->sensor2 != -1)
pac->cur_sensor = pac->sensor2;
pac->cur_rs = pac->rs2;
}
else
return -1;
return 0;
}
int get_pac1934_addr(void* pac1934)
{
struct pac1934* pac = pac1934;
return pac->addr;
}
int get_pac1934_group(void* pac1934)
{
struct pac1934* pac = pac1934;
return pac->cur_group;
}
int get_pac1934_sensor(void* pac1934)
{
struct pac1934* pac = pac1934;
return pac->cur_sensor;
}
int get_pac1934_cur_res(void* pac1934)
{
struct pac1934* pac = pac1934;
return pac->cur_rs;
}
int get_pac1934_unused_res(void* pac1934)
{
struct pac1934* pac = pac1934;
if (pac->rs1 == pac->cur_rs)
return pac->rs2;
else
return pac->rs1;
}
void pac1934_set_hwfilter(void* pac1934, int onoff)
{
struct pac1934* pac = pac1934;
pac->hwfilter = onoff;
}
void pac1934_set_bipolar(void* pac1934, int value)
{
struct pac1934* pac = pac1934;
pac->bipolar = value;