nwztools/plattools: add adc test

Change-Id: Ic3ef964e8b5cc7b8ca3f02f141e9e4436a4d41db

6 files changed, 213 insertions, 2 deletions

diff --git a/utils/nwztools/plattools/nwz_adc.h b/utils/nwztools/plattools/nwz_adc.h
new file mode 100644
index 0000000000..86b2dc7595
--- /dev/null
+++ b/utils/nwztools/plattools/nwz_adc.h
@@ -0,0 +1,42 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2016 Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __NWZ_ADC_H__
+#define __NWZ_ADC_H__
+
+#define NWZ_ADC_DEV  "/dev/icx_adc"
+
+#define NWZ_ADC_TYPE    'm'
+
+#define NWZ_ADC_MIN_CHAN    0
+#define NWZ_ADC_MAX_CHAN    7
+
+#define NWZ_ADC_VCCBAT  0
+#define NWZ_ADC_VCCVBUS 1
+#define NWZ_ADC_ADIN3   2
+#define NWZ_ADC_ADIN4   3
+#define NWZ_ADC_ADIN5   4
+#define NWZ_ADC_ADIN6   5
+#define NWZ_ADC_ADIN7   6
+#define NWZ_ADC_ADIN8   7
+
+#define NWZ_ADC_GET_VAL(chan)   _IOR(NWZ_ADC_TYPE, chan, unsigned char)
+
+#endif /* __NWZ_ADC_H__ */
diff --git a/utils/nwztools/plattools/nwz_fb.h b/utils/nwztools/plattools/nwz_fb.h
new file mode 100644
index 0000000000..c857c5eb8a
--- /dev/null
+++ b/utils/nwztools/plattools/nwz_fb.h
@@ -0,0 +1,56 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2016 Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __NWZ_FB_H__
+#define __NWZ_FB_H__
+
+#define NWZ_FB_LCD_DEV  "/dev/fb/0"
+#define NWZ_FB_TV_DEV   "/dev/fb/1"
+
+#define NWZ_FB_TYPE 'N'
+
+/* How backlight works:
+ *
+ * The brightness interface is a bit strange. There 6 levels: 0 throught 5.
+ * Level 0 means backlight off. When changing brightness, one sets level to the
+ * target brightness. The driver is gradually change the brightness to reach the
+ * target level. The step parameters control how many hardware steps will be done.
+ * For example, setting step to 1 will brutally change the level in one step.
+ * Setting step to 2 will change brightness in two steps: one intermediate and
+ * finally the target one. The more steps, the more gradual the transition. The
+ * period parameters controls the speed to changes between steps. Using this
+ * interface, one can achieve fade in/out at various speeds. */
+#define NWZ_FB_BL_MIN_LEVEL     0
+#define NWZ_FB_BL_MAX_LEVEL     5
+#define NWZ_FB_BL_MIN_STEP      1
+#define NWZ_FB_BL_MAX_STEP      100
+#define NWZ_FB_BL_MIN_PERIOD    10
+
+struct nwz_fb_brightness
+{
+    int level; /* brightness level: 0-5 */
+    int step; /* number of hardware steps to do when changing: 1-100 */
+    int period; /* period in ms between steps when changing: >=10 */
+};
+
+#define NWZ_FB_SET_BRIGHTNESS _IOW(NWZ_FB_TYPE, 0x07, struct nwz_fb_brightness)
+#define NWZ_FB_GET_BRIGHTNESS _IOR(NWZ_FB_TYPE, 0x08, struct nwz_fb_brightness)
+
+#endif /* __NWZ_FB_H__ */
diff --git a/utils/nwztools/plattools/nwz_keys.h b/utils/nwztools/plattools/nwz_keys.h
index 8228e5b620..4a8c28737f 100644
--- a/utils/nwztools/plattools/nwz_keys.h
+++ b/utils/nwztools/plattools/nwz_keys.h
@@ -21,6 +21,8 @@
 #ifndef __NWZ_KEYS_H__
 #define __NWZ_KEYS_H__
 
+#define NWZ_KEY_DEV "/dev/input/event0"
+
 /* The Sony icx_key driver reports keys via the /dev/input/event0 device and
  * abuses the standard struct input_event. The input_event.code is split into
  * two parts:
diff --git a/utils/nwztools/plattools/nwz_lib.c b/utils/nwztools/plattools/nwz_lib.c
index 6316217902..b654855bb8 100644
--- a/utils/nwztools/plattools/nwz_lib.c
+++ b/utils/nwztools/plattools/nwz_lib.c
@@ -71,7 +71,7 @@ void nwz_lcdmsgf(bool clear, int x, int y, const char *format, ...)
 
 int nwz_key_open(void)
 {
-    return open("/dev/input/event0", O_RDONLY);
+    return open(NWZ_KEY_DEV, O_RDONLY);
 }
 
 void nwz_key_close(int fd)
@@ -160,7 +160,7 @@ const char *nwz_key_get_name(int keycode)
 
 int nwz_fb_open(bool lcd)
 {
-    return open(lcd ? "/dev/fb/0" : "/dev/fb/1", O_RDWR);
+    return open(lcd ? NWZ_FB_LCD_DEV : NWZ_FB_TV_DEV, O_RDWR);
 }
 
 void nwz_fb_close(int fd)
@@ -183,3 +183,39 @@ int nwz_fb_set_brightness(int fd, struct nwz_fb_brightness *bl)
     else
         return 1;
 }
+
+int nwz_adc_open(void)
+{
+    return open(NWZ_ADC_DEV, O_RDONLY);
+}
+
+void nwz_adc_close(int fd)
+{
+    close(fd);
+}
+
+static const char *nwz_adc_name[] =
+{
+    [NWZ_ADC_VCCBAT] = "VCCBAT",
+    [NWZ_ADC_VCCVBUS] = "VCCVBUS",
+    [NWZ_ADC_ADIN3] = "ADIN3",
+    [NWZ_ADC_ADIN4] = "ADIN4",
+    [NWZ_ADC_ADIN5] = "ADIN5",
+    [NWZ_ADC_ADIN6] = "ADIN6",
+    [NWZ_ADC_ADIN7] = "ADIN7",
+    [NWZ_ADC_ADIN8] = "ADIN8",
+};
+
+const char *nwz_adc_get_name(int ch)
+{
+    return nwz_adc_name[ch];
+}
+
+int nwz_adc_get_val(int fd, int ch)
+{
+    unsigned char val;
+    if(ioctl(fd, NWZ_ADC_GET_VAL(ch), &val) < 0)
+        return -1;
+    else
+        return val;
+}
diff --git a/utils/nwztools/plattools/nwz_lib.h b/utils/nwztools/plattools/nwz_lib.h
index 86f11ac346..5c8ad3e50c 100644
--- a/utils/nwztools/plattools/nwz_lib.h
+++ b/utils/nwztools/plattools/nwz_lib.h
@@ -32,6 +32,7 @@
 
 #include "nwz_keys.h"
 #include "nwz_fb.h"
+#include "nwz_adc.h"
 
 /* run a program and exit with nonzero status in case of error
  * argument list must be NULL terminated */
@@ -61,6 +62,7 @@ bool nwz_key_event_is_press(struct input_event *evt);
 bool nwz_key_event_get_hold_status(struct input_event *evt);
 /* get keycode name */
 const char *nwz_key_get_name(int keycode);
+
 /* open framebuffer device */
 int nwz_fb_open(bool lcd);
 /* close framebuffer device */
@@ -70,4 +72,13 @@ int nwz_fb_get_brightness(int fd, struct nwz_fb_brightness *bl);
 /* set backlight brightness (return -1 on error, 1 on success) */
 int nwz_fb_set_brightness(int fd, struct nwz_fb_brightness *bl);
 
+/* open adc device */
+int nwz_adc_open(void);
+/* close adc device */
+void nwz_adc_close(int fd);
+/* get channel name */
+const char *nwz_adc_get_name(int ch);
+/* read channel value, return -1 on error */
+int nwz_adc_get_val(int fd, int ch);
+
 #endif /* _NWZLIB_H_ */
diff --git a/utils/nwztools/plattools/test_adc.c b/utils/nwztools/plattools/test_adc.c
new file mode 100644
index 0000000000..52eafd042d
--- /dev/null
+++ b/utils/nwztools/plattools/test_adc.c
@@ -0,0 +1,64 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2016 Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "nwz_lib.h"
+
+int main(int argc, char **argv)
+{
+    /* clear screen and display welcome message */
+    nwz_lcdmsg(true, 0, 0, "test_adc");
+    nwz_lcdmsg(false, 0, 2, "PWR OFF: quit");
+    /* open input device */
+    int input_fd = nwz_key_open();
+    if(input_fd < 0)
+    {
+        nwz_lcdmsg(false, 3, 7, "Cannot open input device");
+        sleep(2);
+        return 1;
+    }
+    /* open adc device */
+    int adc_fd = nwz_adc_open();
+    if(adc_fd < 0)
+    {
+        nwz_lcdmsg(false, 3, 4, "Cannot open adc device");
+        sleep(2);
+        return 1;
+    }
+    /* display input state in a loop */
+    while(1)
+    {
+        /* print channels */
+        for(int i = NWZ_ADC_MIN_CHAN; i <= NWZ_ADC_MAX_CHAN; i++)
+            nwz_lcdmsgf(false, 1, 4 + i, "%s: %d    ", nwz_adc_get_name(i),
+                nwz_adc_get_val(adc_fd, i));
+        /* wait for event (10ms) */
+        int ret = nwz_key_wait_event(input_fd, 10000);
+        if(ret != 1)
+            continue;
+        struct input_event evt;
+        if(nwz_key_read_event(input_fd, &evt) != 1)
+            continue;
+        if(nwz_key_event_get_keycode(&evt) == NWZ_KEY_OPTION && !nwz_key_event_is_press(&evt))
+            break;
+    }
+    /* finish nicely */
+    return 0;
+}
+