Samsung YP-R0 hosted target code refactoring

As per title this patch aims at splitting common target
code and specific target code in a better way to
support future ports within the same environment
(e.g. Samsung YP-R1 where the Linux and the SoC
are the same, with differences in hardware devices
handling)

Change-Id: I67b4918c46403b184d3d8f42ab5aae7d01037fd0
Reviewed-on: http://gerrit.rockbox.org/409
Reviewed-by: Thomas Martitz <kugel@rockbox.org>
Tested-by: Thomas Martitz <kugel@rockbox.org>

firmware/SOURCES

@@ -82,19 +82,19 @@ target/hosted/rtc.c
 target/hosted/kernel-unix.c
 target/hosted/filesystem-unix.c
 target/hosted/lc-unix.c
-target/hosted/ypr0/button-ypr0.c
-target/hosted/ypr0/lcd-ypr0.c
-target/hosted/ypr0/system-ypr0.c
+target/hosted/samsungypr/ypr0/button-ypr0.c
+target/hosted/samsungypr/lcd-ypr.c
+target/hosted/samsungypr/ypr0/system-ypr0.c
 thread.c
 #ifdef HAVE_BACKLIGHT
-target/hosted/ypr0/backlight-ypr0.c
+target/hosted/samsungypr/ypr0/backlight-ypr0.c
 #endif
-target/hosted/ypr0/ascodec-ypr0.c
-target/hosted/ypr0/powermgmt-ypr0.c
-target/hosted/ypr0/gpio_ypr0.c
-target/hosted/ypr0/audio-ypr0.c
+target/hosted/samsungypr/ypr0/ascodec-ypr0.c
+target/hosted/samsungypr/ypr0/powermgmt-ypr0.c
+target/hosted/samsungypr/gpio_ypr.c
+target/hosted/samsungypr/ypr0/audio-ypr0.c
 #if CONFIG_TUNER
-target/hosted/ypr0/radio-ypr0.c
+target/hosted/samsungypr/radio-ypr.c
 #endif
 #endif
 

firmware/export/config/samsungypr0.h

@@ -12,9 +12,6 @@
 
 #define MODEL_NAME   "Samsung YP-R0"
 
-/* Indeed to check that */
-/*TODO: R0 should charge battery automatically, no software stuff to manage that. Just to know about some as3543 registers, that should be set after loading samsung's afe.ko module 
- */
 /*TODO: implement USB data transfer management -> see safe mode script and think a way to implemtent it in the code */
 #define USB_NONE
 
@@ -94,20 +91,26 @@
 #define HAVE_AS3514
 #define HAVE_AS3543
 
+/* We don't have hardware controls */
 #define HAVE_SW_TONE_CONTROLS
 
+/* We have the Si4709, which supports RDS */
 #define CONFIG_TUNER SI4700
 #define HAVE_TUNER_PWR_CTRL
-
 #define HAVE_RDS_CAP
 
 /* Define this for FM radio input available */
 #define HAVE_FMRADIO_IN
 #define INPUT_SRC_CAPS SRC_CAP_FMRADIO
 
-/* We have a GPIO that detects it */
+/* We have a GPIO pin that detects this */
 #define HAVE_HEADPHONE_DETECTION
 
+/* FIXME
+ * Lot of people reports bad battery life and funny charging times.
+ * Check what's going on...
+ */
+
 #define BATTERY_CAPACITY_DEFAULT 600 /* default battery capacity */
 #define BATTERY_CAPACITY_MIN 600  /* min. capacity selectable */
 #define BATTERY_CAPACITY_MAX 600 /* max. capacity selectable */

firmware/target/hosted/samsungypr/backlight-target.h

@@ -5,7 +5,7 @@
  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
  *                     \/            \/     \/    \/            \/
- * $Id: backlight-target.h 19322 2008-12-04 04:16:53Z jethead71 $
+ * $Id$
  *
  * Copyright (C) 2011 by Lorenzo Miori
  *

firmware/target/hosted/samsungypr/gpio_ypr.c

@@ -23,7 +23,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <fcntl.h>
-#include <gpio_ypr0.h> /* includes r0GPIOioctl.h */
+#include <gpio-target.h> /* includes common ioctl device definitions */
 #include <sys/ioctl.h>
 
 static int r0_gpio_dev = 0;

firmware/target/hosted/samsungypr/radio-ypr.c

@@ -6,7 +6,8 @@
  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
  *                     \/            \/     \/    \/            \/
  *
- * Module wrapper for SI4709 FM Radio Chip, using /dev/si470x (si4709.ko) of Samsung YP-R0
+ * Module wrapper for SI4709 FM Radio Chip, using /dev/si470x (si4709.ko) 
+ *      Samsung YP-R0 & Samsung YP-R1
  *
  * Copyright (c) 2012 Lorenzo Miori
  *
@@ -27,7 +28,7 @@
 #include "string.h"
 #include "kernel.h"
 
-#include "radio-ypr0.h"
+#include "radio-ypr.h"
 #include "rds.h"
 #include "si4700.h"
 #include "power.h"

firmware/target/hosted/samsungypr/ypr0/ascodec-ypr0.c

@@ -8,7 +8,7 @@
  * 
  * Module wrapper for AS3543 audio codec, using /dev/afe (afe.ko) of Samsung YP-R0
  *
- * Copyright (c) 2011 Lorenzo Miori
+ * Copyright (c) 2011-2013 Lorenzo Miori
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -29,11 +29,10 @@
 
 #include "ascodec.h"
 
-int afe_dev = -1;
+static int afe_dev = -1;
 
-/* ioctl parameter struct */
+/* Structure used for ioctl module call */
 struct codec_req_struct {
-/* This works for every kind of afe.ko module requests */
     unsigned char reg; /* Main register address */
     unsigned char subreg; /* Set this only if you are reading/writing a PMU register*/
     unsigned char value; /* To be read if reading a register; to be set if writing to a register */
@@ -49,28 +48,31 @@ struct codec_req_struct {
 /* Read from a PMU register */
 #define IOCTL_SUBREG_READ       0x80034103
 
-
+/* Open device */
 void ascodec_init(void)
 {
     afe_dev = open("/dev/afe", O_RDWR);
 }
 
+/* Close device */
 void ascodec_close(void)
 {
-    if (afe_dev >= 0) {
+    if (afe_dev >= 0)
         close(afe_dev);
-    }
 }
 
-/* Read functions returns -1 if fail, otherwise the register's value if success */
-/* Write functions return >= 0 if success, otherwise -1 if fail */
-
+/* Write register.
+ * Returns >= 0 if success, -1 if fail
+ */
 int ascodec_write(unsigned int reg, unsigned int value)
 {
     struct codec_req_struct r = { .reg = reg, .value = value };
     return ioctl(afe_dev, IOCTL_REG_WRITE, &r);
 }
 
+/* Read register.
+ * Returns -1 if fail, otherwise the register's value if success
+ */
 int ascodec_read(unsigned int reg)
 {
     struct codec_req_struct r = { .reg = reg };
@@ -81,6 +83,7 @@ int ascodec_read(unsigned int reg)
         return retval;
 }
 
+/* Write PMU register */
 void ascodec_write_pmu(unsigned int index, unsigned int subreg,
                                      unsigned int value)
 {
@@ -88,6 +91,7 @@ void ascodec_write_pmu(unsigned int index, unsigned int subreg,
     ioctl(afe_dev, IOCTL_SUBREG_WRITE, &r);
 }
 
+/* Read PMU register */
 int ascodec_read_pmu(unsigned int index, unsigned int subreg)
 {
     struct codec_req_struct r = { .reg = index, .subreg = subreg, };

firmware/target/hosted/samsungypr/ypr0/button-ypr0.c

@@ -24,7 +24,7 @@
 #include "kernel.h"
 #include "system.h"
 #include "button-target.h"
-#include <gpio_ypr0.h> /* For headphones sense and buttons */
+#include <gpio-target.h> /* For headphones sense and buttons */
 
 int button_read_device(void)
 {

firmware/target/hosted/samsungypr/ypr0/powermgmt-ypr0.c

@@ -5,7 +5,6 @@
  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
  *                     \/            \/     \/    \/            \/
- * $Id: powermgmt-sim.c 29543 2011-03-08 19:33:30Z thomasjfox $
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,7 +23,7 @@
 #include "file.h"
 #include "adc.h"
 #include "sc900776.h"
-#include "radio-ypr0.h"
+#include "radio-ypr.h"
 
 const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
 {

firmware/target/hosted/samsungypr/ypr0/system-ypr0.c

@@ -5,9 +5,8 @@
  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <   
  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \  
  *                     \/            \/     \/    \/            \/ 
- * $Id: system-sdl.c 29925 2011-05-25 20:11:03Z thomasjfox $
  *
- * Copyright (C) 2006 by Daniel Everton <dan@iocaine.org>
+ * Copyright (C) 2011-2013 by Lorenzo Miori
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -31,7 +30,7 @@
 #endif
 
 #include "ascodec.h"
-#include "gpio_ypr0.h"
+#include "gpio-target.h"
 
 void power_off(void)
 {
@@ -52,6 +51,7 @@ void system_init(void)
 #if defined(HAVE_SDL_AUDIO) || defined(HAVE_SDL_THREADS) || defined(HAVE_SDL)
     SDL_Init(0); /* need this if using any SDL subsystem */
 #endif
+
     /* Here begins our platform specific initilization for various things */
     ascodec_init();
     gpio_init();

tools/configure

@@ -3347,8 +3347,8 @@ fi
     swcodec="yes"
     # architecture, manufacturer and model for the target-tree build
     t_cpu="hosted"
-    t_manufacturer="ypr0"
-    t_model="app"
+    t_manufacturer="samsungypr"
+    t_model="ypr0"
     ;;
 
    206|androidmips)

tools/root.make

@@ -120,7 +120,7 @@ else
   endif
 
   ifneq (,$(findstring ypr0,$(APP_TYPE)))
-    include $(ROOTDIR)/firmware/target/hosted/ypr0/ypr0.make
+    include $(ROOTDIR)/firmware/target/hosted/samsungypr/ypr0/ypr0.make
   endif
 
   ifneq (,$(findstring android, $(APP_TYPE)))