adcapp: added support for ast2600 platform
In ast2600, ADC engine has two Analog-to-Digital Convertor.
Each one has 8 voltage sensing channels.Current adcapp able to read
device0 only. Adcapp should read all channel values for ast2600. By
this changes, adcapp tool can be used for both ast2600 and ast2500
bmc platform.
Tested:
Read the raw data from sysfs entry and tried to read the same values
from adcapp,validated on both ast2600 and ast2500 platform.
Adcapp able to read all the channel values.
Signed-off-by: Raghul R <raghulr@ami.com>
Change-Id: I8adec7c784102794a1acb85f2745e92ad3206a2e
diff --git a/adcapp/src/adcifc.c b/adcapp/src/adcifc.c
index 9627b28..b54f797 100644
--- a/adcapp/src/adcifc.c
+++ b/adcapp/src/adcifc.c
@@ -26,34 +26,42 @@
\brief Source for all adc interface code
*/
-static int adc_directory_check()
-{
- int retval = 0;
- struct stat sb;
- if (!(stat("/sys/bus/iio/devices/iio:device0", &sb) == 0 && S_ISDIR(sb.st_mode)))
- {
- printf("\"/sys/bus/iio/devices/iio:device0\" is not exist!\n");
- retval = -1;
- }
- return retval;
-}
+ static int adc_directory_check(char *path) {
+ int retval = 0;
+ struct stat sb;
+ if (!(stat(path, &sb) == 0 && S_ISDIR(sb.st_mode))) {
+ printf("%s is not exist!\n", path);
+ retval = -1;
+ }
+ return retval;
+ }
static int sys_get_adc_vol( get_adc_value_t *argp )
{
int retval = -1;
int fd;
int tmp;
- char stringArray[50];
- char val[5];
- if(argp->channel_num > 15) retval = -1;
- retval = adc_directory_check();
- if(retval != 0)
- {
- return retval;
- }
- snprintf(stringArray, sizeof(stringArray), "%s%s%d%s", "/sys/bus/iio/devices/iio:device0","/in_voltage", argp->channel_num,"_raw");
- retval = access(stringArray,F_OK);
- if(retval != 0)
+ int devid = 0;
+ char stringArray[50];
+ char devpath[50];
+ char val[5];
+ if(argp->channel_num > 15) retval = -1;
+#ifdef AST2600_ADCAPP
+ if (argp->channel_num >= 8) {
+ devid = 1;
+ argp->channel_num -= 8;
+ }
+#endif
+ snprintf(devpath, sizeof(devpath), "/sys/bus/iio/devices/iio:device%d",
+ devid);
+ retval = adc_directory_check(devpath);
+ if (retval != 0) {
+ return retval;
+ }
+ snprintf(stringArray, sizeof(stringArray), "%s/in_voltage%d_raw",
+ devpath, argp->channel_num);
+ retval = access(stringArray, F_OK);
+ if(retval != 0)
{
return retval;
}