From: Andy <antan@nvidia.com>
Date: Wed, 27 Feb 2019 01:00:36 +0000 (-0800)
Subject: added i2c
X-Git-Tag: 1.2.5^2~5
X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/commitdiff_plain/830fcdc5594f2ee5a191c96a643766e3232eeecb?ds=sidebyside

added i2c
---

diff --git a/src/adafruit_blinka/board/jetson_pin.py b/src/adafruit_blinka/board/jetson_pin.py
index f380ea6..87d7c59 100644
--- a/src/adafruit_blinka/board/jetson_pin.py
+++ b/src/adafruit_blinka/board/jetson_pin.py
@@ -5,8 +5,10 @@ from adafruit_blinka.microcontroller.tegra import pin
 D1 = pin.D1
 D2 = pin.D2
 D3 = pin.D3
+SDA = pin.D3
 D4 = pin.D4
 D5 = pin.D5
+SCL = pin.D5
 D6 = pin.D6
 D7 = pin.D7
 D8 = pin.D8
@@ -29,7 +31,9 @@ D24 = pin.D24
 D25 = pin.D25
 D26 = pin.D26
 D27 = pin.D27
+SDA_1 = pin.D27
 D28 = pin.D28
+SCL_1 = pin.D28
 D29 = pin.D29
 D30 = pin.D30
 D31 = pin.D31
@@ -41,4 +45,4 @@ D36 = pin.D36
 D37 = pin.D37
 D38 = pin.D38
 D39 = pin.D39
-D40 = pin.D40
\ No newline at end of file
+D40 = pin.D40
diff --git a/src/adafruit_blinka/microcontroller/tegra/pin.py b/src/adafruit_blinka/microcontroller/tegra/pin.py
index 6c27096..fa535ce 100644
--- a/src/adafruit_blinka/microcontroller/tegra/pin.py
+++ b/src/adafruit_blinka/microcontroller/tegra/pin.py
@@ -1,10 +1,22 @@
 import sys
+import Jetson.GPIO as GPIO
 sys.path.append("/opt/nvidia/jetson-gpio/lib/python")
 sys.path.append("/opt/nvidia/jetson-gpio/lib/python/Jetson/GPIO")
-import Jetson.GPIO as GPIO
 GPIO.setmode(GPIO.BCM)
 GPIO.setwarnings(False)   # shh!
 
+# Each Jetson model uses different I2C busses
+JETSON_I2C_BUS_DEFS = {
+    "JETSON_TX1": [0, 1],
+    "JETSON_TX2": [1, 0],
+    "JETSON_XAVIER": [8, 1],
+    "JETSON_TXX": [1, 0]
+}
+
+model = GPIO.get_model()
+I2C_BUS = JETSON_I2C_BUS_DEFS[model][0]
+I2C_BUS_1 = JETSON_I2C_BUS_DEFS[model][1]
+
 # Pins dont exist in CPython so...lets make our own!
 class Pin:
     IN = 0
@@ -72,8 +84,10 @@ class Pin:
 D1 = Pin(1)
 D2 = Pin(2)
 D3 = Pin(3)
+SDA = Pin(3)
 D4 = Pin(4)
 D5 = Pin(5)
+SCL = Pin(5)
 D6 = Pin(6)
 D7 = Pin(7)
 D8 = Pin(8)
@@ -96,7 +110,9 @@ D24 = Pin(24)
 D25 = Pin(25)
 D26 = Pin(26)
 D27 = Pin(27)
+SDA_1 = Pin(27)
 D28 = Pin(28)
+SCL_1 = Pin(28)
 D29 = Pin(29)
 D30 = Pin(30)
 D31 = Pin(31)
@@ -109,3 +125,8 @@ D37 = Pin(37)
 D38 = Pin(38)
 D39 = Pin(39)
 D40 = Pin(40)
+
+i2cPorts = (
+    (I2C_BUS, SCL, SDA), (I2C_BUS_1, SCL_1, SDA_1),
+)
+
diff --git a/src/digitalio.py b/src/digitalio.py
index c017a0a..44034f9 100755
--- a/src/digitalio.py
+++ b/src/digitalio.py
@@ -54,6 +54,7 @@ Pull.DOWN = Pull()
 
 #Pull.NONE = Pull()
 
+
 class DigitalInOut(ContextManaged):
     _pin = None
 
diff --git a/src/microcontroller/__init__.py b/src/microcontroller/__init__.py
index 9247101..812178b 100755
--- a/src/microcontroller/__init__.py
+++ b/src/microcontroller/__init__.py
@@ -36,5 +36,7 @@ elif chip_id == ap_chip.SUN8I:
     from adafruit_blinka.microcontroller.allwinner_h3 import *
 elif chip_id == ap_chip.SAMA5:
     from adafruit_blinka.microcontroller.sama5 import *
+elif chip_id == ap_chip.TEGRAXXX:
+    from adafruit_blinka.microcontroller.tegra import *
 else:
     raise NotImplementedError("Microcontroller not supported:", chip_id)