FM radio for Philips HDD1630. Volume was very faint unless recording was enabled, so do that too.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19996 a1c6a512-1295-4272-9138-f99709370657

firmware/target/arm/i2c-pp.c

@@ -196,6 +196,29 @@ int i2c_readbyte(unsigned int dev_addr, int addr)
     return (int)data;
 }
 
+int i2c_sendbytes(unsigned int addr, int len, const unsigned char *data)
+{
+    int i, n;
+
+    mutex_lock(&i2c_mtx);
+
+    i = 0;
+    while (len > 0)
+    {
+        n = (len < 4) ? len : 4;
+
+        if (pp_i2c_send_bytes(addr, n, (unsigned char *)(data + i)) < 0)
+            break;
+
+        len -= n;
+        i   += n;
+    }
+
+    mutex_unlock(&i2c_mtx);
+
+    return i;
+}
+
 int pp_i2c_send(unsigned int addr, int data0, int data1)
 {
     int retval;
@@ -234,7 +257,14 @@ void i2c_init(void)
 
 #if CONFIG_I2C == I2C_PP5020
     outl(0x0, 0x600060a4);
+#if defined(PHILIPS_HDD1630)
+    outl(inl(0x600060a4) | 0x20, 0x600060a4);
+    outl(inl(0x7000c020) | 0x3, 0x7000c020);
+    outl(0x55, 0x7000c02c);
+    outl(0x54, 0x7000c030);
+#else
     outl(0x80 | (0 << 8), 0x600060a4);
+#endif
 #elif CONFIG_I2C == I2C_PP5024
 #if defined(SANSA_E200) || defined(PHILIPS_SA9200)
     /* Sansa OF sets this to 0x20 first, communicates with the AS3514

firmware/target/arm/philips/hdd1630/fmradio_i2c-hdd1630.c

@@ -0,0 +1,44 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id:$
+ *
+ * Copyright (C) 2009 by Mark Arigo
+ *
+ * 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 "config.h"
+
+#if (CONFIG_TUNER & TEA5767)
+#include "i2c-pp.h"
+#include "fmradio_i2c.h"
+
+/* The TEA5767 uses 5 bytes, but the pp-i2c will only read/write 4 bytes
+   at a time. The tuner doesn't like it when the i2c resets to send the 5th
+   byte. So, we can only read/write the first 4 bytes. Luckily, on read,
+   the 5th byte is reserved and on write we only use that for the deemphasis
+   bit (which we'll have to ignore). This is what the OF appears to do too. */
+
+int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count)
+{
+    (void)count;
+    return i2c_sendbytes(address, 4, buf);
+}
+
+int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count)
+{
+    (void)count;
+    return i2c_readbytes(address, -1, 4, buf);
+}
+#endif

firmware/target/arm/philips/hdd1630/power-hdd1630.c

@@ -39,6 +39,13 @@ void power_init(void)
     /* charger inserted bit */
     GPIOE_ENABLE |= 0x20;
     GPIOE_INPUT_VAL |= 0x20;
+
+#if CONFIG_TUNER
+    /* fm antenna? */
+    GPIOE_ENABLE |= 0x40;
+    GPIOE_OUTPUT_EN |= 0x40;
+    GPIOE_OUTPUT_VAL &= ~0x40; /* off */
+#endif
 }
 
 unsigned int power_input_status(void)
@@ -77,3 +84,15 @@ void power_off(void)
     GPIOB_OUTPUT_VAL &= ~0x80;
     GPIOB_OUTPUT_EN |= 0x80;
 }
+
+#if CONFIG_TUNER
+bool tuner_power(bool status)
+{
+    if (status)
+        GPIOE_OUTPUT_VAL |= 0x40;
+    else
+        GPIOE_OUTPUT_VAL &= ~0x40;
+
+    return status;
+}
+#endif