ref: b9efa5bad11f7ada9416bab6f63ca4dd69b520c5
dir: /v1/9/i2c.diff/
diff 90a08cf1fda8eaf4afe98f74a7572fb36b7ef369 uncommitted
--- a/sys/src/9/bcm64/dat.h
+++ b/sys/src/9/bcm64/dat.h
@@ -15,6 +15,7 @@
typedef struct Conf Conf;
typedef struct Confmem Confmem;
typedef struct FPsave FPsave;
+typedef struct I2Cdev I2Cdev;
typedef struct PFPU PFPU;
typedef struct ISAConf ISAConf;
typedef struct Label Label;
@@ -34,6 +35,7 @@
typedef uvlong Tval;
typedef void KMap;
+
#pragma incomplete Pcidev
#pragma incomplete Ureg
@@ -110,6 +112,12 @@
ulong hz; /* processor cycle freq */
ulong mhz;
int monitor; /* flag */
+};
+
+struct I2Cdev {
+ int salen;
+ int addr;
+ int tenbit;
};
/*
--- a/sys/src/9/bcm64/fns.h
+++ b/sys/src/9/bcm64/fns.h
@@ -133,6 +133,11 @@
extern int gpiogetevent(uint);
extern void gpiomeminit(void);
+/* i2c */
+extern void i2csetup(int);
+extern long i2crecv(I2Cdev*, void*, long, ulong);
+extern long i2csend(I2Cdev*, void*, long, ulong);
+
/* arch */
extern void archreboot(void);
extern char *cputype2name(char*, int);
--- a/sys/src/9/bcm64/pi3
+++ b/sys/src/9/bcm64/pi3
@@ -18,6 +18,8 @@
mouse mouse
uart gpio
gpio gpio
+ i2c i2c
+ rtc7940x i2c
sd
usb
dtracy