From 446f352abda2dbc9de90c35a02100ed5e9aad77c Mon Sep 17 00:00:00 2001
From: Amaury Pouly <amaury.pouly@gmail.com>
Date: Tue, 19 Nov 2013 20:39:10 +0000
Subject: imx233: factor fmradio i2c and tuner power code

Choices are limited for those: i2c is either generic software or imx233
hardware and power is either none or with a gpio. So factor ever possible
combination in a single common file and use fmradio-target.h to supply the
required parameters. This will remove a bunch of duplicate code.

Change-Id: If12faeb2e371631cd39cc18a4c1d859812007934
---
 firmware/target/arm/imx233/fmradio-imx233.h | 64 +++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 firmware/target/arm/imx233/fmradio-imx233.h

(limited to 'firmware/target/arm/imx233/fmradio-imx233.h')

diff --git a/firmware/target/arm/imx233/fmradio-imx233.h b/firmware/target/arm/imx233/fmradio-imx233.h
new file mode 100644
index 0000000000..d53336dd40
--- /dev/null
+++ b/firmware/target/arm/imx233/fmradio-imx233.h
@@ -0,0 +1,64 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2013 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.
+ *
+ ****************************************************************************/
+#ifndef __fmradio_imx233__
+#define __fmradio_imx233__
+
+#include "config.h"
+#include "tuner.h"
+#include "fmradio_i2c.h"
+#include "tuner.h"
+
+/** This driver implements fmradio i2c and tuner power in a generic way. It
+ * currently provides two possible implementation of i2c:
+ * - hardware using i2c-imx233 driver
+ * - software using generic-i2c driver
+ * And it provides tuner power by toggling an optional GPIO.
+ * It can be tweaked using the following defines
+ * and variables:
+ * - IMX233_FMRADIO_I2C
+ * - IMX233_FMRADIO_POWER
+ *
+ * The available values of IMX233_FMRADIO_I2C are:
+ * - FMI_HW: use hardware i2c driver
+ * - FMI_SW: use software i2c driver, needs additional defines:
+ *   + FMI_SW_SDA_BANK: the SDA pin bank
+ *   + FMI_SW_SDA_PIN: the SDA pin within bank
+ *   + FMI_SW_SCL_BANK: the SCL pin bank
+ *   + FMI_SW_SCL_PIN: the SCL pin bank
+ * The available values of IMX233_FMRADIO_POWER are:
+ * - FMP_NONE: tuner has no power control
+ * - FMP_GPIO: tuner power is controlled by a GPIO, needs additional defines:
+ *   + FMP_GPIO_BANK: pin bank
+ *   + FMP_GPIO_PIN: pin within bank
+ *   + FMP_GPIO_INVERTED: define if inverted, default is active high
+ *   + FMP_GPIO_DELAY: delay to power up/down (in ticks)
+ */
+
+/* i2c method */
+#define FMI_HW      0
+#define FMI_SW      1
+
+/* power method */
+#define FMP_NONE    0
+#define FMP_GPIO    1
+
+#endif /* __fmradio_imx233__ */
+ 
-- 
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