Philips tuner prepared, new middle layer to abstract which tuner is used

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5289 a1c6a512-1295-4272-9138-f99709370657

9 files changed, 307 insertions, 4 deletions

diff --git a/firmware/SOURCES b/firmware/SOURCES
index 7594c6dc1a..6df69bf2a3 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -38,7 +38,14 @@ drivers/button.c
 drivers/dac.c
 drivers/fat.c
 #ifdef CONFIG_TUNER
+#if (CONFIG_TUNER & S1A0903X01)
 drivers/fmradio.c
+tuner_samsung.c
+#endif
+#if (CONFIG_TUNER & TEA5767)
+drivers/fmradio_i2c.c
+tuner_philips.c
+#endif
 #endif
 drivers/i2c.c
 #ifdef HAVE_LCD_CHARCELLS
diff --git a/firmware/drivers/fmradio_i2c.c b/firmware/drivers/fmradio_i2c.c
new file mode 100644
index 0000000000..93c5d2fa91
--- /dev/null
+++ b/firmware/drivers/fmradio_i2c.c
@@ -0,0 +1,41 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Physical interface of the Philips TEA5767 in Archos Ondio
+ *
+ * Copyright (C) 2004 by Jörg Hohensohn
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "lcd.h"
+#include "sh7034.h"
+#include "kernel.h"
+#include "thread.h"
+#include "debug.h"
+#include "system.h"
+
+#ifdef CONFIG_TUNER
+
+/* reads 5 byte */
+void fmradio_i2c_read(unsigned char* p_data)
+{
+    (void)p_data;
+}
+
+/* writes 5 bytes */
+void fmradio_i2c_set(const unsigned char* p_data)
+{
+    (void)p_data;
+}
+
+#endif
diff --git a/firmware/export/config-ondiofm.h b/firmware/export/config-ondiofm.h
index 437f8682a8..f459934fbc 100644
--- a/firmware/export/config-ondiofm.h
+++ b/firmware/export/config-ondiofm.h
@@ -41,7 +41,7 @@
 #define FIRMWARE_OFFSET_FILE_DATA 24
 
 /* Define this if you have an FM Radio */
-#define CONFIG_TUNER TEA5767
+#define CONFIG_TUNER (S1A0903X01 | TEA5767) /* to be decided at runtime */
 
 /* How to detect USB */
 #define USB_FMRECORDERSTYLE 1 /* like FM, on AN1 */
diff --git a/firmware/export/config.h b/firmware/export/config.h
index 76a2bd9316..823a5dc3ed 100644
--- a/firmware/export/config.h
+++ b/firmware/export/config.h
@@ -22,9 +22,9 @@
 
 /* symbolic names for multiple choice configurations: */
 
-/* CONFIG_TUNER */
-#define S1A0903X01 0 /* Samsung */
-#define TEA5767    1 /* Philips */
+/* CONFIG_TUNER (note these are combineable bit-flags) */
+#define S1A0903X01 0x01 /* Samsung */
+#define TEA5767    0x02 /* Philips */
 
 /* CONFIG_HWCODEC */
 #define MAS3587F 3587
diff --git a/firmware/export/fmradio_i2c.h b/firmware/export/fmradio_i2c.h
new file mode 100644
index 0000000000..06b7f9f7b7
--- /dev/null
+++ b/firmware/export/fmradio_i2c.h
@@ -0,0 +1,26 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Physical interface of the Philips TEA5767 in Archos Ondio
+ *
+ * Copyright (C) 2004 by Jörg Hohensohn
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef FMRADIO_I2C_H
+#define FMRADIO_I2C_H
+
+void fmradio_i2c_read(unsigned char* p_data); /* reads 5 byte */
+void fmradio_i2c_set(const unsigned char* p_data); /* writes 5 bytes */
+
+#endif
diff --git a/firmware/export/hwcompat.h b/firmware/export/hwcompat.h
index ef3892b1fa..66f29f8b16 100644
--- a/firmware/export/hwcompat.h
+++ b/firmware/export/hwcompat.h
@@ -27,6 +27,7 @@
 #define USB_ACTIVE_HIGH 0x0100
 #define PR_ACTIVE_HIGH  0x0100
 #define LCD_CONTRAST_BIAS 0x0200
+#define TUNER_MODEL 0x0800
 
 int read_rom_version(void);
 int read_hw_mask(void);
diff --git a/firmware/export/tuner.h b/firmware/export/tuner.h
new file mode 100644
index 0000000000..ae31c6d354
--- /dev/null
+++ b/firmware/export/tuner.h
@@ -0,0 +1,49 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Tuner abstraction layer
+ *
+ * Copyright (C) 2004 Jörg Hohensohn
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __TUNER_SAMSUNG_H__
+#define __TUNER_SAMSUNG_H__
+
+/* settings to the tuner layer */
+#define RADIO_INIT 0
+#define RADIO_FREQUENCY 1
+#define RADIO_MUTE 2
+#define RADIO_IF_MEASUREMENT 3
+#define RADIO_SENSITIVITY 4
+#define RADIO_FORCE_MONO 5
+/* readback from the tuner layer */
+#define RADIO_PRESENT 0
+#define RADIO_IF_MEASURED 1
+#define RADIO_STEREO 2
+
+#ifdef CONFIG_TUNER
+
+#if (CONFIG_TUNER & S1A0903X01)
+void samsung_set(int setting, int value);
+int samsung_get(int setting);
+#endif
+
+#if (CONFIG_TUNER & TEA5767)
+void philips_set(int setting, int value);
+int philips_get(int setting);
+#endif
+
+#endif /* #ifdef CONFIG_TUNER */
+
+#endif
diff --git a/firmware/tuner_philips.c b/firmware/tuner_philips.c
new file mode 100644
index 0000000000..50559af23e
--- /dev/null
+++ b/firmware/tuner_philips.c
@@ -0,0 +1,70 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Tuner "middleware" for Philips TEA5767 chip
+ *
+ * Copyright (C) 2004 Jörg Hohensohn
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdbool.h>
+#include "tuner.h" /* tuner abstraction interface */
+#include "fmradio_i2c.h" /* physical interface driver */
+
+/* FIXME: this is just a dummy */
+
+/* tuner abstraction layer: set something to the tuner */
+void philips_set(int setting, int value)
+{
+    (void)value;
+    switch(setting)
+    {
+        case RADIO_INIT:
+            break;
+
+        case RADIO_FREQUENCY:
+            break;
+
+        case RADIO_MUTE:
+            break;
+
+        case RADIO_IF_MEASUREMENT:
+            break;
+
+        case RADIO_SENSITIVITY:
+            break;
+
+        case RADIO_FORCE_MONO:
+            break;
+    }
+}
+
+/* tuner abstraction layer: read something from the tuner */
+int philips_get(int setting)
+{
+    int val = -1;
+    switch(setting)
+    {
+        case RADIO_PRESENT:
+            val = 0; /* false */
+            break;
+
+        case RADIO_IF_MEASURED:
+            break;
+
+        case RADIO_STEREO:
+            break;
+    }
+    return val;
+}
diff --git a/firmware/tuner_samsung.c b/firmware/tuner_samsung.c
new file mode 100644
index 0000000000..781a4bcd3e
--- /dev/null
+++ b/firmware/tuner_samsung.c
@@ -0,0 +1,109 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Tuner "middleware" for Samsung S1A0903X01 chip
+ *
+ * Copyright (C) 2003 Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdbool.h>
+#include "tuner.h" /* tuner abstraction interface */
+#include "fmradio.h" /* physical interface driver */
+
+#define DEFAULT_IN1 0x100003 /* Mute */
+#define DEFAULT_IN2 0x140884 /* 5kHz, 7.2MHz crystal */
+#define PLL_FREQ_STEP 10000
+
+int debug_fm_detection;
+static int fm_in1;
+static int fm_in2;
+
+/* tuner abstraction layer: set something to the tuner */
+void samsung_set(int setting, int value)
+{
+    switch(setting)
+    {
+        case RADIO_INIT:
+            fm_in1 = DEFAULT_IN1;
+            fm_in2 = DEFAULT_IN2;
+            fmradio_set(1, fm_in1);
+            fmradio_set(2, fm_in2);
+            break;
+
+        case RADIO_FREQUENCY:
+        {
+            int pll_cnt;
+            /* We add the standard Intermediate Frequency 10.7MHz
+            ** before calculating the divisor
+            ** The reference frequency is set to 50kHz, and the VCO
+            ** output is prescaled by 2.
+            */
+    
+            pll_cnt = (value + 10700000) / (PLL_FREQ_STEP/2) / 2;
+
+            /* 0x100000 == FM mode
+            ** 0x000002 == Microprocessor controlled Mute
+            */
+            fm_in1 = (fm_in1 & 0xfff00007) | (pll_cnt << 3);
+            fmradio_set(1, fm_in1);
+            break;
+        }
+
+        case RADIO_MUTE:
+            fm_in1 = (fm_in1 & 0xfffffffe) | (value?1:0);
+            fmradio_set(1, fm_in1);
+            break;
+
+        case RADIO_IF_MEASUREMENT:
+            fm_in1 = (fm_in1 & 0xfffffffb) | (value?4:0);
+            fmradio_set(1, fm_in1);
+            break;
+
+        case RADIO_SENSITIVITY:
+            fm_in2 = (fm_in2 & 0xffff9fff) | ((value & 3) << 13);
+            fmradio_set(2, fm_in2);
+            break;
+
+        case RADIO_FORCE_MONO:
+            fm_in2 = (fm_in2 & 0xfffffffb) | (value?0:4);
+            fmradio_set(2, fm_in2);
+            break;
+    }
+}
+
+/* tuner abstraction layer: read something from the tuner */
+int samsung_get(int setting)
+{
+    int val = -1;
+    switch(setting)
+    {
+        case RADIO_PRESENT:
+            fmradio_set(2, 0x140885); /* 5kHz, 7.2MHz crystal, test mode 1 */
+            val = fmradio_read(0);
+            debug_fm_detection = val;
+            val = (val == 0x140885);
+            break;
+
+        case RADIO_IF_MEASURED:
+            val = fmradio_read(3);
+            val = (val & 0x7ffff) / 80; /* convert to kHz */
+            break;
+
+        case RADIO_STEREO:
+            val = fmradio_read(3);
+            val = ((val & 0x100000) ? true : false);
+    }
+    return val;
+}