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TODO: PWM
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,113 @@ | ||
diff --git a/source/c_adc.c b/source/c_adc.c | ||
index e0c754c..5269407 100644 | ||
--- a/source/c_adc.c | ||
+++ b/source/c_adc.c | ||
@@ -30,29 +30,28 @@ SOFTWARE. | ||
#include "c_adc.h" | ||
#include "common.h" | ||
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||
-char adc_prefix_dir[40]; | ||
+char adc_prefix_dir[49]; | ||
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int adc_initialized = 0; | ||
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int initialize_adc(void) | ||
{ | ||
- char test_path[40]; | ||
+ char test_path[49]; | ||
FILE *fh; | ||
if (adc_initialized) { | ||
return 1; | ||
} | ||
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||
- if (load_device_tree("cape-bone-iio")) { | ||
- build_path("/sys/devices", "ocp.", ocp_dir, sizeof(ocp_dir)); | ||
- build_path(ocp_dir, "helper.", adc_prefix_dir, sizeof(adc_prefix_dir)); | ||
- strncat(adc_prefix_dir, "/AIN", sizeof(adc_prefix_dir)); | ||
- | ||
+ if (load_device_tree("BB-ADC")) { | ||
+ strncat(adc_prefix_dir, "/sys/bus/iio/devices/iio:device0/in_voltage", sizeof(adc_prefix_dir)); | ||
+ | ||
// Test that the directory has an AIN entry (found correct devicetree) | ||
- snprintf(test_path, sizeof(test_path), "%s%d", adc_prefix_dir, 0); | ||
+ snprintf(test_path, sizeof(test_path), "%s%d_raw", adc_prefix_dir, 1); | ||
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fh = fopen(test_path, "r"); | ||
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if (!fh) { | ||
+ puts("wiiii"); | ||
return 0; | ||
} | ||
fclose(fh); | ||
@@ -67,10 +66,10 @@ int initialize_adc(void) | ||
int read_value(unsigned int ain, float *value) | ||
{ | ||
FILE * fh; | ||
- char ain_path[40]; | ||
+ char ain_path[49]; | ||
int err, try_count=0; | ||
int read_successful; | ||
- snprintf(ain_path, sizeof(ain_path), "%s%d", adc_prefix_dir, ain); | ||
+ snprintf(ain_path, sizeof(ain_path), "%s%d_raw", adc_prefix_dir, ain); | ||
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read_successful = 0; | ||
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@@ -106,5 +105,5 @@ int adc_setup() | ||
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void adc_cleanup(void) | ||
{ | ||
- unload_device_tree("cape-bone-iio"); | ||
+ unload_device_tree("BB-ADC"); | ||
} | ||
diff --git a/source/common.c b/source/common.c | ||
index 8911a9c..4b07e7c 100644 | ||
--- a/source/common.c | ||
+++ b/source/common.c | ||
@@ -361,12 +361,14 @@ int get_spi_bus_path_number(unsigned int spi) | ||
int load_device_tree(const char *name) | ||
{ | ||
FILE *file = NULL; | ||
- char slots[40]; | ||
+ char slots[41]; | ||
char line[256]; | ||
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- build_path("/sys/devices", "bone_capemgr", ctrl_dir, sizeof(ctrl_dir)); | ||
- snprintf(slots, sizeof(slots), "%s/slots", ctrl_dir); | ||
+ // build_path("/sys/devices/platform", "bone_capemgr", ctrl_dir, sizeof(ctrl_dir)); | ||
+ snprintf(ctrl_dir, sizeof(ctrl_dir), "/sys/devices/platform/bone_capemgr"); | ||
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+ snprintf(slots, sizeof(slots), "%s/slots", ctrl_dir); | ||
+ | ||
file = fopen(slots, "r+"); | ||
if (!file) { | ||
PyErr_SetFromErrnoWithFilename(PyExc_IOError, slots); | ||
@@ -394,11 +396,12 @@ int load_device_tree(const char *name) | ||
int unload_device_tree(const char *name) | ||
{ | ||
FILE *file = NULL; | ||
- char slots[40]; | ||
+ char slots[41]; | ||
char line[256]; | ||
char *slot_line; | ||
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- build_path("/sys/devices", "bone_capemgr", ctrl_dir, sizeof(ctrl_dir)); | ||
+ // build_path("/sys/devices/platform", "bone_capemgr", ctrl_dir, sizeof(ctrl_dir)); | ||
+ snprintf(ctrl_dir, sizeof(ctrl_dir), "/sys/devices/platform/bone_capemgr"); | ||
snprintf(slots, sizeof(slots), "%s/slots", ctrl_dir); | ||
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file = fopen(slots, "r+"); | ||
diff --git a/source/common.h b/source/common.h | ||
index 2600b40..a9a2c88 100644 | ||
--- a/source/common.h | ||
+++ b/source/common.h | ||
@@ -39,8 +39,8 @@ SOFTWARE. | ||
int gpio_mode; | ||
int gpio_direction[120]; | ||
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-char ctrl_dir[35]; | ||
-char ocp_dir[25]; | ||
+char ctrl_dir[43]; | ||
+char ocp_dir[33]; | ||
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int get_gpio_number(const char *key, unsigned int *gpio); | ||
int get_pwm_key(const char *input, char *key); |
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