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Diffstat (limited to 'meta-amd-bsp/recipes-applications/smbus-test')
4 files changed, 1328 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-applications/smbus-test/files/LICENSE b/meta-amd-bsp/recipes-applications/smbus-test/files/LICENSE new file mode 100644 index 00000000..d159169d --- /dev/null +++ b/meta-amd-bsp/recipes-applications/smbus-test/files/LICENSE @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. 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If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/meta-amd-bsp/recipes-applications/smbus-test/files/i2c-dev.h b/meta-amd-bsp/recipes-applications/smbus-test/files/i2c-dev.h new file mode 100644 index 00000000..b9358174 --- /dev/null +++ b/meta-amd-bsp/recipes-applications/smbus-test/files/i2c-dev.h @@ -0,0 +1,335 @@ +/* + i2c-dev.h - i2c-bus driver, char device interface + + Copyright (C) 1995-97 Simon G. Vogl + Copyright (C) 1998-99 Frodo Looijaard <frodol@dds.nl> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301 USA. +*/ + +/* $Id: i2c-dev.h 5894 2010-12-12 13:22:29Z khali $ */ + +#ifndef LIB_I2CDEV_H +#define LIB_I2CDEV_H + +#include <linux/types.h> +#include <sys/ioctl.h> + + +/* -- i2c.h -- */ + + +/* + * I2C Message - used for pure i2c transaction, also from /dev interface + */ +struct i2c_msg { + __u16 addr; /* slave address */ + unsigned short flags; +#define I2C_M_TEN 0x10 /* we have a ten bit chip address */ +#define I2C_M_RD 0x01 +#define I2C_M_NOSTART 0x4000 +#define I2C_M_REV_DIR_ADDR 0x2000 +#define I2C_M_IGNORE_NAK 0x1000 +#define I2C_M_NO_RD_ACK 0x0800 + short len; /* msg length */ + char *buf; /* pointer to msg data */ +}; + +/* To determine what functionality is present */ + +#define I2C_FUNC_I2C 0x00000001 +#define I2C_FUNC_10BIT_ADDR 0x00000002 +#define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */ +#define I2C_FUNC_SMBUS_PEC 0x00000008 +#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */ +#define I2C_FUNC_SMBUS_QUICK 0x00010000 +#define I2C_FUNC_SMBUS_READ_BYTE 0x00020000 +#define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000 +#define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000 +#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000 +#define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000 +#define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000 +#define I2C_FUNC_SMBUS_PROC_CALL 0x00800000 +#define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000 +#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 +#define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */ +#define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* w/ 1-byte reg. addr. */ + +#define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \ + I2C_FUNC_SMBUS_WRITE_BYTE) +#define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \ + I2C_FUNC_SMBUS_WRITE_BYTE_DATA) +#define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \ + I2C_FUNC_SMBUS_WRITE_WORD_DATA) +#define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \ + I2C_FUNC_SMBUS_WRITE_BLOCK_DATA) +#define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \ + I2C_FUNC_SMBUS_WRITE_I2C_BLOCK) + +/* Old name, for compatibility */ +#define I2C_FUNC_SMBUS_HWPEC_CALC I2C_FUNC_SMBUS_PEC + +/* + * Data for SMBus Messages + */ +#define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */ +#define I2C_SMBUS_I2C_BLOCK_MAX 32 /* Not specified but we use same structure */ +union i2c_smbus_data { + __u8 byte; + __u16 word; + __u8 block[I2C_SMBUS_BLOCK_MAX + 2]; /* block[0] is used for length */ + /* and one more for PEC */ +}; + +/* smbus_access read or write markers */ +#define I2C_SMBUS_READ 1 +#define I2C_SMBUS_WRITE 0 + +/* SMBus transaction types (size parameter in the above functions) + Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */ +#define I2C_SMBUS_QUICK 0 +#define I2C_SMBUS_BYTE 1 +#define I2C_SMBUS_BYTE_DATA 2 +#define I2C_SMBUS_WORD_DATA 3 +#define I2C_SMBUS_PROC_CALL 4 +#define I2C_SMBUS_BLOCK_DATA 5 +#define I2C_SMBUS_I2C_BLOCK_BROKEN 6 +#define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */ +#define I2C_SMBUS_I2C_BLOCK_DATA 8 + + +/* ----- commands for the ioctl like i2c_command call: + * note that additional calls are defined in the algorithm and hw + * dependent layers - these can be listed here, or see the + * corresponding header files. + */ + /* -> bit-adapter specific ioctls */ +#define I2C_RETRIES 0x0701 /* number of times a device address */ + /* should be polled when not */ + /* acknowledging */ +#define I2C_TIMEOUT 0x0702 /* set timeout - call with int */ + + +/* this is for i2c-dev.c */ +#define I2C_SLAVE 0x0703 /* Change slave address */ + /* Attn.: Slave address is 7 or 10 bits */ +#define I2C_SLAVE_FORCE 0x0706 /* Change slave address */ + /* Attn.: Slave address is 7 or 10 bits */ + /* This changes the address, even if it */ + /* is already taken! */ +#define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */ + +#define I2C_FUNCS 0x0705 /* Get the adapter functionality */ +#define I2C_RDWR 0x0707 /* Combined R/W transfer (one stop only)*/ +#define I2C_PEC 0x0708 /* != 0 for SMBus PEC */ + +#define I2C_SMBUS 0x0720 /* SMBus-level access */ + +/* -- i2c.h -- */ + + +/* Note: 10-bit addresses are NOT supported! */ + +/* This is the structure as used in the I2C_SMBUS ioctl call */ +struct i2c_smbus_ioctl_data { + char read_write; + __u8 command; + int size; + union i2c_smbus_data *data; +}; + +/* This is the structure as used in the I2C_RDWR ioctl call */ +struct i2c_rdwr_ioctl_data { + struct i2c_msg *msgs; /* pointers to i2c_msgs */ + int nmsgs; /* number of i2c_msgs */ +}; + + +static inline __s32 i2c_smbus_access(int file, char read_write, __u8 command, + int size, union i2c_smbus_data *data) +{ + struct i2c_smbus_ioctl_data args; + + args.read_write = read_write; + args.command = command; + args.size = size; + args.data = data; + return ioctl(file,I2C_SMBUS,&args); +} + + +static inline __s32 i2c_smbus_write_quick(int file, __u8 value) +{ + return i2c_smbus_access(file,value,0,I2C_SMBUS_QUICK,NULL); +} + +static inline __s32 i2c_smbus_read_byte(int file) +{ + union i2c_smbus_data data; + if (i2c_smbus_access(file,I2C_SMBUS_READ,0,I2C_SMBUS_BYTE,&data)) + return -1; + else + return 0x0FF & data.byte; +} + +static inline __s32 i2c_smbus_write_byte(int file, __u8 value) +{ + return i2c_smbus_access(file,I2C_SMBUS_WRITE,value, + I2C_SMBUS_BYTE,NULL); +} + +static inline __s32 i2c_smbus_read_byte_data(int file, __u8 command) +{ + union i2c_smbus_data data; + if (i2c_smbus_access(file,I2C_SMBUS_READ,command, + I2C_SMBUS_BYTE_DATA,&data)) + return -1; + else + return 0x0FF & data.byte; +} + +static inline __s32 i2c_smbus_write_byte_data(int file, __u8 command, + __u8 value) +{ + union i2c_smbus_data data; + data.byte = value; + return i2c_smbus_access(file,I2C_SMBUS_WRITE,command, + I2C_SMBUS_BYTE_DATA, &data); +} + +static inline __s32 i2c_smbus_read_word_data(int file, __u8 command) +{ + union i2c_smbus_data data; + if (i2c_smbus_access(file,I2C_SMBUS_READ,command, + I2C_SMBUS_WORD_DATA,&data)) + return -1; + else + return 0x0FFFF & data.word; +} + +static inline __s32 i2c_smbus_write_word_data(int file, __u8 command, + __u16 value) +{ + union i2c_smbus_data data; + data.word = value; + return i2c_smbus_access(file,I2C_SMBUS_WRITE,command, + I2C_SMBUS_WORD_DATA, &data); +} + +static inline __s32 i2c_smbus_process_call(int file, __u8 command, __u16 value) +{ + union i2c_smbus_data data; + data.word = value; + if (i2c_smbus_access(file,I2C_SMBUS_WRITE,command, + I2C_SMBUS_PROC_CALL,&data)) + return -1; + else + return 0x0FFFF & data.word; +} + + +/* Returns the number of read bytes */ +static inline __s32 i2c_smbus_read_block_data(int file, __u8 command, + __u8 *values) +{ + union i2c_smbus_data data; + int i; + if (i2c_smbus_access(file,I2C_SMBUS_READ,command, + I2C_SMBUS_BLOCK_DATA,&data)) + return -1; + else { + for (i = 1; i <= data.block[0]; i++) + values[i-1] = data.block[i]; + return data.block[0]; + } +} + +static inline __s32 i2c_smbus_write_block_data(int file, __u8 command, + __u8 length, const __u8 *values) +{ + union i2c_smbus_data data; + int i; + if (length > 32) + length = 32; + for (i = 1; i <= length; i++) + data.block[i] = values[i-1]; + data.block[0] = length; + return i2c_smbus_access(file,I2C_SMBUS_WRITE,command, + I2C_SMBUS_BLOCK_DATA, &data); +} + +/* Returns the number of read bytes */ +/* Until kernel 2.6.22, the length is hardcoded to 32 bytes. If you + ask for less than 32 bytes, your code will only work with kernels + 2.6.23 and later. */ +static inline __s32 i2c_smbus_read_i2c_block_data(int file, __u8 command, + __u8 length, __u8 *values) +{ + union i2c_smbus_data data; + int i; + + if (length > 32) + length = 32; + data.block[0] = length; + if (i2c_smbus_access(file,I2C_SMBUS_READ,command, + length == 32 ? I2C_SMBUS_I2C_BLOCK_BROKEN : + I2C_SMBUS_I2C_BLOCK_DATA,&data)) + return -1; + else { + for (i = 1; i <= data.block[0]; i++) + values[i-1] = data.block[i]; + return data.block[0]; + } +} + +static inline __s32 i2c_smbus_write_i2c_block_data(int file, __u8 command, + __u8 length, + const __u8 *values) +{ + union i2c_smbus_data data; + int i; + if (length > 32) + length = 32; + for (i = 1; i <= length; i++) + data.block[i] = values[i-1]; + data.block[0] = length; + return i2c_smbus_access(file,I2C_SMBUS_WRITE,command, + I2C_SMBUS_I2C_BLOCK_BROKEN, &data); +} + +/* Returns the number of read bytes */ +static inline __s32 i2c_smbus_block_process_call(int file, __u8 command, + __u8 length, __u8 *values) +{ + union i2c_smbus_data data; + int i; + if (length > 32) + length = 32; + for (i = 1; i <= length; i++) + data.block[i] = values[i-1]; + data.block[0] = length; + if (i2c_smbus_access(file,I2C_SMBUS_WRITE,command, + I2C_SMBUS_BLOCK_PROC_CALL,&data)) + return -1; + else { + for (i = 1; i <= data.block[0]; i++) + values[i-1] = data.block[i]; + return data.block[0]; + } +} + + +#endif /* LIB_I2CDEV_H */ diff --git a/meta-amd-bsp/recipes-applications/smbus-test/files/smbus-test.c b/meta-amd-bsp/recipes-applications/smbus-test/files/smbus-test.c new file mode 100644 index 00000000..5178f798 --- /dev/null +++ b/meta-amd-bsp/recipes-applications/smbus-test/files/smbus-test.c @@ -0,0 +1,632 @@ +/***************************************************************************** +* +* Copyright (c) 2014, Advanced Micro Devices, Inc. +* All rights reserved. +* +* 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 Advanced Micro Devices, Inc. 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 ADVANCED MICRO DEVICES, INC. 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 <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <signal.h> +#include <dirent.h> + +#include <sys/types.h> +#include <sys/ioctl.h> +#include <sys/stat.h> + +#include <readline/readline.h> + +#include "i2c-dev.h" + +#define SMBUS_APP_VERSION "0.1" + +static int adapter_nr = -1; +static int slave_addr = 0xFF; +static char filename[20]; +static int fd = -1; + +char *show_prompt(void) +{ + return "$ "; +} + +void sighandler(int sig) +{ + printf("\n%s", show_prompt()); +} + +void show_license(void) +{ + printf("/*****************************************************************************\n" + "*\n" + "* Copyright (c) 2014, Advanced Micro Devices, Inc.\n" + "* All rights reserved.\n" + "*\n" + "* Redistribution and use in source and binary forms, with or without\n" + "* modification, are permitted provided that the following conditions are met:\n" + "* * Redistributions of source code must retain the above copyright\n" + "* notice, this list of conditions and the following disclaimer.\n" + "* * Redistributions in binary form must reproduce the above copyright\n" + "* notice, this list of conditions and the following disclaimer in the\n" + "* documentation and/or other materials provided with the distribution.\n" + "* * Neither the name of Advanced Micro Devices, Inc. nor the names of\n" + "* its contributors may be used to endorse or promote products derived\n" + "* from this software without specific prior written permission.\n" + "*\n" + "* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n" + "* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n" + "* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n" + "* DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY\n" + "* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n" + "* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n" + "* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\n" + "* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" + "* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\n" + "* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" + "*\n" + "*\n" + "***************************************************************************/\n"); +} + +void print_usage(void) +{ + printf("\nCommands Supported ->\n"); + printf(" enumerate : List all adapters available\n"); + printf(" setadapternum <num> : Set the adapter number\n"); + printf(" getadapternum : Get the current adapter number\n"); + printf(" setslaveaddr <addr> : Set the slave device address\n"); + printf(" getslaveaddr : Get the current slave device address\n"); + printf(" getadapterfunc : Displays the functionalities supported by the adapter\n"); + printf(" quicksend <bit> : Sends a single bit (0 or 1) to the device\n"); + printf(" receivebyte : Receive a single byte from the slave device\n"); + printf(" sendbyte <byte> : Sends a single byte to the slave device\n"); + printf(" readbyte <register> : Reads a byte at register of the slave device\n"); + printf(" writebyte <register> <byte> : Writes a byte at register of the slave device\n"); + printf(" readword <register> : Reads a word at register of the slave device\n"); + printf(" writeword <register> <word> : Writes a word at register of the slave device\n"); + printf(" readblock <register> : Reads a block of data from register of the slave device\n"); + printf(" writeblock <register> <filename> : Writes a block of data read from filename to register\n" + " of the slave device\n"); + printf(" license : Displays the terms of LICENSE for this application\n"); + printf(" help : Displays help text\n"); + printf(" exit : Exits the application\n\n"); +} + +void parse_cmd(const char *cmdline) +{ + struct i2c_smbus_ioctl_data param; + union i2c_smbus_data smbus_data; + unsigned long funcs; + + if ((cmdline == NULL) || (strncmp(cmdline, "exit", 4) == 0)) { + printf("\nExiting...\n"); + if((fd != -1) && (close(fd) < 0)) + printf("Error closing device\n\n"); + + exit(EXIT_SUCCESS); + } else if (strncmp(cmdline, "enumerate", 9) == 0) { + DIR *dir; + struct dirent *dir_entry; + int adapter_found = 0; + + /* Get the directory handle */ + if ((dir = opendir("/dev")) == NULL) { + printf("Failed to open directory /dev. Probably you " + "do not have right privilege!\n\n"); + exit(EXIT_FAILURE); + } + + /* Iterate over all the directory entries */ + while ((dir_entry = readdir(dir)) != NULL) { + /* + * If the file is a character device, and its signature + * matches i2c-x, then we print the corresponding file. + */ + if ((dir_entry->d_type == DT_CHR) && + (strncmp(dir_entry->d_name, "i2c-", 4) == 0)) { + printf("%s\n", dir_entry->d_name); + adapter_found = 1; + } + } + + printf("\n"); + + /* + * In case we did not find even a single adapter, we print a + * message and exit. + */ + if (!adapter_found) { + printf("No adapters found, load i2c-dev kernel module and try again\n\n"); + exit(EXIT_FAILURE); + } + } else if (strncmp(cmdline, "setadapternum", 13) == 0) { + int input; + int file_desc; + + cmdline += 14; + if (sscanf(cmdline, "%d", &input) < 1) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + snprintf(filename, 19, "/dev/i2c-%d", input); + file_desc = open(filename, O_RDWR); + if (file_desc < 0) { + printf("Error opening file %s\n\n", filename); + return; + } + + /* Once we have validated inputs, we store them into the global + * variables used at other places in the program. + */ + fd = file_desc; + adapter_nr = input; + printf("Adapter Number set to %d\n\n", adapter_nr); + } else if (strncmp(cmdline, "getadapternum", 13) == 0) { + if (adapter_nr == -1) + printf("Adapter Number not set\n\n"); + else + printf("Adapter Number set to %d\n\n", adapter_nr); + } else if (strncmp(cmdline, "setslaveaddr", 12) == 0) { + int addr; + + cmdline += 13; + if (sscanf(cmdline, "0x%x", &addr) < 1) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + /* Set the slave address */ + if (ioctl(fd, I2C_SLAVE, addr) < 0) { + printf("Error setting slave address. Please make sure " + "to provide 7-bit slave address\n\n"); + return; + } + + slave_addr = addr; + printf("Slave Address set to 0x%x\n\n", slave_addr); + } else if (strncmp(cmdline, "getslaveaddr", 12) == 0) { + if (slave_addr == 0xFF) + printf("Slave Address not set\n\n"); + else + printf("Slave Address set to 0x%x\n\n", slave_addr); + } else if (strncmp(cmdline, "getadapterfunc", 14) == 0) { + if (adapter_nr == -1) { + printf("Please set adapter first\n\n"); + return; + } + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (funcs & I2C_FUNC_I2C) + printf("I2C_FUNC_I2C\n"); + if (funcs & I2C_FUNC_10BIT_ADDR) + printf("I2C_FUNC_10BIT_ADDR\n"); + if (funcs & I2C_FUNC_PROTOCOL_MANGLING) + printf("I2C_FUNC_PROTOCOL_MANGLING\n"); + if (funcs & I2C_FUNC_SMBUS_PEC) + printf("I2C_FUNC_SMBUS_PEC\n"); + if (funcs & I2C_FUNC_SMBUS_BLOCK_PROC_CALL) + printf("I2C_FUNC_SMBUS_BLOCK_PROC_CALL\n"); + if (funcs & I2C_FUNC_SMBUS_QUICK) + printf("I2C_FUNC_SMBUS_QUICK\n"); + if (funcs & I2C_FUNC_SMBUS_READ_BYTE) + printf("I2C_FUNC_SMBUS_READ_BYTE\n"); + if (funcs & I2C_FUNC_SMBUS_WRITE_BYTE) + printf("I2C_FUNC_SMBUS_WRITE_BYTE\n"); + if (funcs & I2C_FUNC_SMBUS_READ_BYTE_DATA) + printf("I2C_FUNC_SMBUS_READ_BYTE_DATA\n"); + if (funcs & I2C_FUNC_SMBUS_WRITE_BYTE_DATA) + printf("I2C_FUNC_SMBUS_WRITE_BYTE_DATA\n"); + if (funcs & I2C_FUNC_SMBUS_READ_WORD_DATA) + printf("I2C_FUNC_SMBUS_READ_WORD_DATA\n"); + if (funcs & I2C_FUNC_SMBUS_WRITE_WORD_DATA) + printf("I2C_FUNC_SMBUS_WRITE_WORD_DATA\n"); + if (funcs & I2C_FUNC_SMBUS_PROC_CALL) + printf("I2C_FUNC_SMBUS_PROC_CALL\n"); + if (funcs & I2C_FUNC_SMBUS_READ_BLOCK_DATA) + printf("I2C_FUNC_SMBUS_READ_BLOCK_DATA\n"); + if (funcs & I2C_FUNC_SMBUS_WRITE_BLOCK_DATA) + printf("I2C_FUNC_SMBUS_WRITE_BLOCK_DATA\n"); + if (funcs & I2C_FUNC_SMBUS_READ_I2C_BLOCK) + printf("I2C_FUNC_SMBUS_READ_I2C_BLOCK\n"); + if (funcs & I2C_FUNC_SMBUS_WRITE_I2C_BLOCK) + printf("I2C_FUNC_SMBUS_WRITE_I2C_BLOCK\n"); + + printf("\n"); + } else if (strncmp(cmdline, "quicksend", 9) == 0) { + int bit; + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_QUICK)) { + printf("SMBus Quick command not supported by the adapter\n\n"); + return; + } + + cmdline += 10; + if (sscanf(cmdline, "%d", &bit) < 1) { + printf("Invalid input, please try again\n\n"); + return; + } + + /* Sanity check */ + if ((bit != 0) && (bit != 1)) { + printf("Only 0 or 1 is allowed\n\n"); + return; + } + + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + param.data = NULL; + + if (bit) + param.read_write = I2C_SMBUS_READ; + else + param.read_write = I2C_SMBUS_WRITE; + + param.size = I2C_SMBUS_QUICK; + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Quick command failed\n\n"); + return; + } + + printf("Quick Send %d successfull\n\n", bit); + } else if (strncmp(cmdline, "receivebyte", 11) == 0) { + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_BYTE)) { + printf("SMBus receivebyte command not supported by adapter\n"); + return; + } + + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + memset(&smbus_data, 0, sizeof(union i2c_smbus_data)); + param.data = &smbus_data; + + param.read_write = I2C_SMBUS_READ; + param.size = I2C_SMBUS_BYTE; + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Receive Byte command failed\n\n"); + return; + } + + printf("Byte Received 0x%x\n\n", param.data->byte); + } else if (strncmp(cmdline, "sendbyte", 8) == 0) { + int byte; + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_BYTE)) { + printf("SMBus sendbyte command not supported by adapter\n"); + return; + } + + cmdline += 9; + if (sscanf(cmdline, "0x%x", &byte) < 1) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + param.data = NULL; + + param.read_write = I2C_SMBUS_WRITE; + param.command = byte; + param.size = I2C_SMBUS_BYTE; + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Send Byte command failed\n\n"); + return; + } + + printf("Sent 0x%x to slave\n\n", byte); + } else if (strncmp(cmdline, "readbyte", 8) == 0) { + int reg; + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_BYTE_DATA)) { + printf("SMBus readbyte command not supported by adapter\n"); + return; + } + + cmdline += 9; + if (sscanf(cmdline, "0x%x", ®) < 1) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + memset(&smbus_data, 0, sizeof(union i2c_smbus_data)); + param.data = &smbus_data; + + param.command = reg; + param.read_write = I2C_SMBUS_READ; + param.size = I2C_SMBUS_BYTE_DATA; + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Read Byte Data command failed\n\n"); + return; + } + + printf("Read 0x%x at register 0x%x of the slave\n\n", param.data->byte, reg); + } else if (strncmp(cmdline, "writebyte", 9) == 0) { + int reg, byte; + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_BYTE_DATA)) { + printf("SMBus writebyte command not supported by adapter\n"); + return; + } + + cmdline += 10; + if (sscanf(cmdline, "0x%x 0x%x", ®, &byte) < 2) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + memset(&smbus_data, 0, sizeof(union i2c_smbus_data)); + param.data = &smbus_data; + + param.command = reg; + param.read_write = I2C_SMBUS_WRITE; + param.size = I2C_SMBUS_BYTE_DATA; + param.data->byte = byte; + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Write Byte Data command failed\n\n"); + return; + } + + printf("Written 0x%x to register 0x%x of the slave\n\n", byte, reg); + } else if (strncmp(cmdline, "readword", 8) == 0) { + int reg; + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_WORD_DATA)) { + printf("SMBus readword command not supported by adapter\n"); + return; + } + + cmdline += 9; + if (sscanf(cmdline, "0x%x", ®) < 1) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + memset(&smbus_data, 0, sizeof(union i2c_smbus_data)); + param.data = &smbus_data; + + param.command = reg; + param.read_write = I2C_SMBUS_READ; + param.size = I2C_SMBUS_WORD_DATA; + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Read Word Data command failed\n\n"); + return; + } + + printf("Read 0x%.4x at register 0x%x of the slave\n\n", param.data->word, reg); + } else if (strncmp(cmdline, "writeword", 9) == 0) { + int reg, word; + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_WORD_DATA)) { + printf("SMBus writeword command not supported by adapter\n"); + return; + } + + cmdline += 10; + if (sscanf(cmdline, "0x%x 0x%x", ®, &word) < 2) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + memset(&smbus_data, 0, sizeof(union i2c_smbus_data)); + param.data = &smbus_data; + + param.command = reg; + param.read_write = I2C_SMBUS_WRITE; + param.size = I2C_SMBUS_WORD_DATA; + param.data->word = word; + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Write Word Data command failed\n\n"); + return; + } + + printf("Written 0x%x to register 0x%x of the slave\n\n", word, reg); + } else if (strncmp(cmdline, "readblock", 9) == 0) { + int reg; + int i; + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_BLOCK_DATA)) { + printf("SMBus readblock command not supported by adapter\n"); + return; + } + + cmdline += 10; + if (sscanf(cmdline, "0x%x", ®) < 1) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + memset(&smbus_data, 0, sizeof(union i2c_smbus_data)); + param.data = &smbus_data; + + param.command = reg; + param.read_write = I2C_SMBUS_READ; + param.size = I2C_SMBUS_BLOCK_DATA; + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Read Block Data command failed\n\n"); + return; + } + + printf("Reading %d bytes from register 0x%x:\n", param.data->block[0], reg); + for (i = 1; i <= param.data->block[0]; i++) + printf("0x%.2x ", param.data->block[i]); + printf("\n\n"); + } else if (strncmp(cmdline, "writeblock", 10) == 0) { + int reg; + char infile[256]; + FILE *file; + int data; + int num_bytes = 0; + int i; + + /* Get the adapter functionality */ + if (ioctl(fd, I2C_FUNCS, &funcs) < 0) { + printf("Error getting adapter functionalities\n\n"); + return; + } + + if (!(funcs & I2C_FUNC_SMBUS_BLOCK_DATA)) { + printf("SMBus writeblock command not supported by adapter\n"); + return; + } + + cmdline += 11; + if (sscanf(cmdline, "0x%x %s", ®, infile) < 2) { + printf("Invalid inputs, please try again\n\n"); + return; + } + + /* open infile for reading */ + if ((file = fopen(infile, "r")) == NULL) { + printf("Failed to open file %s\n\n", infile); + return; + } + + /* setup parameters to the IOCTL call */ + memset(¶m, 0, sizeof(struct i2c_smbus_ioctl_data)); + memset(&smbus_data, 0, sizeof(union i2c_smbus_data)); + param.data = &smbus_data; + + param.command = reg; + param.read_write = I2C_SMBUS_WRITE; + param.size = I2C_SMBUS_BLOCK_DATA; + + /* + * populate block data to be sent to the device. SMBus sets a + * limit of 32 bytes to be sent or received in a block. + */ + for (i = 1; i <= 32; i++) { + if (fscanf(file, "0x%x ", &data) == EOF) + break; + + param.data->block[i] = data; + num_bytes++; + } + + /* The very first block data should be the number of bytes + * in the block. + */ + param.data->block[0] = num_bytes; + + printf("Writing %d bytes to register 0x%.2x of device\n\n", + param.data->block[0], reg); + + /* Execute block write command */ + if (ioctl(fd, I2C_SMBUS, ¶m) == -1) { + printf("SMBus Write Block Data command failed\n\n"); + return; + } + + fclose(file); + } else if (strncmp(cmdline, "license", 7) == 0) { + show_license(); + } else if (strncmp(cmdline, "help", 4) == 0) { + print_usage(); + } else { + printf("\nUnknown command\n"); + print_usage(); + } +} + +int main(void) +{ + char *cmdline= NULL; + + printf("SMBus sample application version: %s\n", SMBUS_APP_VERSION); + printf("Copyright (c) 2014, Advanced Micro Devices, Inc.\n" + "This sample application comes with ABSOLUTELY NO WARRANTY;\n" + "This is free software, and you are welcome to redistribute it\n" + "under certain conditions; type `license` for details.\n\n"); + + /* Handler for Ctrl+C */ + signal(SIGINT, sighandler); + + while (1) { + cmdline = readline(show_prompt()); + parse_cmd(cmdline); + /* Free the memory malloc'ed by readline */ + free(cmdline); + } + + /* Should never reach here */ + return 0; +} diff --git a/meta-amd-bsp/recipes-applications/smbus-test/smbus-test_1.0.bb b/meta-amd-bsp/recipes-applications/smbus-test/smbus-test_1.0.bb new file mode 100644 index 00000000..24f9b5b8 --- /dev/null +++ b/meta-amd-bsp/recipes-applications/smbus-test/smbus-test_1.0.bb @@ -0,0 +1,22 @@ +DESCRIPTION = "Sample application for AMD SMBUS driver" +SECTION = "applications" +LICENSE = "BSD | GPLv2" +DEPENDS = "readline" +LIC_FILES_CHKSUM = "file://smbus-test.c;endline=29;md5=8e7a9706367d146e5073510a6e176dc2" + +SRC_URI = "file://smbus-test.c \ + file://i2c-dev.h \ + " + +S = "${WORKDIR}" + +TARGET_CC_ARCH += "${LDFLAGS}" + +do_compile() { + ${CC} smbus-test.c -o smbus-test -lreadline +} + +do_install() { + install -d ${D}${bindir} + install -m 0755 smbus-test ${D}${bindir} +} |