zenxfi3&stfm1000: implement fmradio i2c and debug screen

Change-Id: I83dbdee13185d9adcf590dc213da5a8c97adb2ba

apps/debug_menu.c

@@ -1867,6 +1867,15 @@ static int radio_callback(int btn, struct gui_synclist *lists)
         }
     }
 #endif /* RDA55802 */
+#if (CONFIG_TUNER & STFM1000)
+    IF_TUNER_TYPE(STFM1000)
+    {
+        struct stfm1000_dbg_info nfo;
+        stfm1000_dbg_info(&nfo);
+        simplelist_addline(SIMPLELIST_ADD_LINE, "STFM1000 regs:");
+        simplelist_addline(SIMPLELIST_ADD_LINE,"chipid: 0x%x", nfo.chipid);
+    }
+#endif /* STFM1000 */
 
 #ifdef HAVE_RDS_CAP
         simplelist_addline(SIMPLELIST_ADD_LINE, "PI:%04X PS:'%8s'",

firmware/SOURCES

@@ -1146,6 +1146,7 @@ target/arm/imx233/creative-zenxfi2/audio-zenxfi2.c
 
 #ifdef CREATIVE_ZENXFI3
 drivers/mpr121.c
+target/arm/imx233/creative-zenxfi3/fmradio-i2c-zenxfi3.c
 target/arm/imx233/creative-zenxfi3/backlight-zenxfi3.c
 target/arm/imx233/creative-zenxfi3/lcd-zenxfi3.c
 target/arm/imx233/creative-zenxfi3/button-zenxfi3.c

firmware/drivers/tuner/stfm1000.c

@@ -31,6 +31,36 @@
 #include "fmradio_i2c.h" /* physical interface driver */
 #include "stfm1000.h"
 
+#define STFM100_I2C_ADDR    0xc0
+
+#define CHIPID  0x80
+
+static int stfm1000_read_reg(uint8_t reg, uint32_t *val)
+{
+    uint8_t buf[4];
+    buf[0] = reg;
+    int ret = fmradio_i2c_write(STFM100_I2C_ADDR, buf, 1);
+    if(ret < 0) return ret;
+    ret = fmradio_i2c_read(STFM100_I2C_ADDR, buf, 4);
+    *val = buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24;
+    return ret;
+}
+
+static int stfm1000_write_reg(uint8_t reg, uint32_t val)
+{
+    uint8_t buf[5];
+    buf[0] = reg;
+    buf[1] = val & 0xff; buf[2] = (val >> 8) & 0xff;
+    buf[3] = (val >> 16) & 0xff; buf[4] = (val >> 24) & 0xff;
+    return fmradio_i2c_write(STFM100_I2C_ADDR, buf, 5);
+}
+
+void stfm1000_dbg_info(struct stfm1000_dbg_info *nfo)
+{
+    memset(nfo, 0, sizeof(struct stfm1000_dbg_info));
+    stfm1000_read_reg(CHIPID, &nfo->chipid);
+}
+
 void stfm1000_init(void)
 {
 }

firmware/export/stfm1000.h

@@ -29,10 +29,16 @@
 #define HAVE_RADIO_REGION
 #define HAVE_RADIO_RSSI
 
+struct stfm1000_dbg_info
+{
+    uint32_t chipid;
+};
+
 bool stfm1000_detect(void);
 void stfm1000_init(void);
 int stfm1000_set(int setting, int value);
 int stfm1000_get(int setting);
+void stfm1000_dbg_info(struct stfm1000_dbg_info *nfo);
 
 #ifndef CONFIG_TUNER_MULTI
 #define tuner_set stfm1000_set

firmware/target/arm/imx233/creative-zenxfi3/fmradio-i2c-zenxfi3.c

@@ -0,0 +1,40 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2012 by 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 "config.h"
+#include "system.h"
+#include "fmradio_i2c.h"
+#include "pinctrl-imx233.h"
+#include "i2c.h"
+
+void fmradio_i2c_init(void)
+{
+}
+
+int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count)
+{
+    return i2c_write(address, buf, count);
+}
+
+int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count)
+{
+    return i2c_read(address, buf, count);
+}

firmware/target/arm/imx233/system-imx233.c

@@ -110,7 +110,8 @@ void system_init(void)
     imx233_pwm_init();
     imx233_lradc_init();
     imx233_i2c_init();
-#if defined(SANSA_FUZEPLUS) && !defined(BOOTLOADER)
+#if !defined(BOOTLOADER) && \
+    (defined(SANSA_FUZEPLUS) || defined(CREATIVE_ZENXFI3))
     fmradio_i2c_init();
 #endif
 }