zenxfi3&stfm1000: implement fmradio i2c and debug screen

Change-Id: I83dbdee13185d9adcf590dc213da5a8c97adb2ba

5 files changed, 79 insertions, 1 deletions

diff --git a/firmware/SOURCES b/firmware/SOURCES
index f6d7c2b69f..5cb464e6b1 100644
--- a/firmware/SOURCES
+++ b/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
diff --git a/firmware/drivers/tuner/stfm1000.c b/firmware/drivers/tuner/stfm1000.c
index ae96993285..8626d4e2a5 100644
--- a/firmware/drivers/tuner/stfm1000.c
+++ b/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)
 {
 }
diff --git a/firmware/export/stfm1000.h b/firmware/export/stfm1000.h
index 2143a81ad4..6c01d6308e 100644
--- a/firmware/export/stfm1000.h
+++ b/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
diff --git a/firmware/target/arm/imx233/creative-zenxfi3/fmradio-i2c-zenxfi3.c b/firmware/target/arm/imx233/creative-zenxfi3/fmradio-i2c-zenxfi3.c
new file mode 100644
index 0000000000..58ac8e6a08
--- /dev/null
+++ b/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);
+}
diff --git a/firmware/target/arm/imx233/system-imx233.c b/firmware/target/arm/imx233/system-imx233.c
index 5ef52c7957..a24927f9a5 100644
--- a/firmware/target/arm/imx233/system-imx233.c
+++ b/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
 }