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added skeleton for planned i2c API

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This commit is contained in:
Markus Fröschle
2015-01-12 14:00:20 +00:00
parent de2d671a15
commit f6d4bfeea2
4 changed files with 55 additions and 1 deletions
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1
BaS_gcc/BaS_gcc.files
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@@ -196,3 +196,4 @@ util/bas_string.c
util/printf_helper.S
util/wait.c
bas.lk.in
i2c/i2c.c

3
BaS_gcc/Makefile
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@@ -52,7 +52,7 @@ TRGTDIRS= ./firebee ./m5484lite ./m54455
OBJDIRS=$(patsubst %, %/objs,$(TRGTDIRS))
TOOLDIR=util
VPATH=dma exe flash fs if kbd pci spi sys usb net util video radeon x86emu xhdi
VPATH=dma exe flash fs i2c if kbd pci spi sys usb net util video radeon x86emu xhdi
# Linker control file. The final $(LDCFILE) is intermediate only (preprocessed version of $(LDCSRC)
LDCFILE=bas.lk
@@ -85,6 +85,7 @@ CSRCS= \
s19reader.c \
flash.c \
dma.c \
i2c.c \
xhdi_sd.c \
xhdi_interface.c \
pci.c \

41
BaS_gcc/i2c/i2c.c Normal file
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@@ -0,0 +1,41 @@
#include <bas_types.h>
void i2c_init(void)
{
}
void i2c_set_frequency(int hz)
{
}
int i2c_read(int address, char *data, int lengt, bool repeated)
{
return 0;
}
int i2c_read_byte(int ack)
{
return 0;
}
int i2c_write(int address, const char *data, int length, bool repeated)
{
return 0;
}
int i2c_write_byte(int data)
{
return 0;
}
void i2c_start(void)
{
}
void i2c_stop(void)
{
}

11
BaS_gcc/include/i2c.h
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@@ -28,6 +28,8 @@
#ifndef _I2C_H
#define _I2C_H
#include "bas_types.h"
/* --- General options ------------------------------------------------ */
struct i2c_msg;
@@ -82,4 +84,13 @@ struct i2c_msg
unsigned char *buf; /* pointer to msg data */
};
extern void i2c_init(void);
extern void i2c_set_frequency(int hz);
extern int i2c_read(int address, char *data, int lengt, bool repeated);
extern int i2c_read_byte(int ack);
extern int i2c_write(int address, const char *data, int length, bool repeated);
extern int i2c_write_byte(int data);
extern void i2c_start(void);
extern void i2c_stop(void);
#endif /* _I2C_H */