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imx233: factor fmradio i2c and tuner power code

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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
This commit is contained in:
Amaury Pouly 2013-11-19 20:39:10 +00:00
parent c2c2274e0a
commit 446f352abd
13 changed files with 274 additions and 347 deletions
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76
firmware/target/arm/imx233/sansa-fuzeplus/fmradio-i2c-fuzeplus.c
View file

@ -21,91 +21,17 @@
#include "config.h"
#include "system.h"
#include "fmradio_i2c.h"
#include "pinctrl-imx233.h"
#include "generic_i2c.h"
#include "rds.h"
#include "si4700.h"
/**
* Sansa Fuze+ fmradio uses the following pins:
* - B0P29 as CE apparently (active high)
* - B0P29 as CE (active high)
* - B1P24 as SDA
* - B1P22 as SCL
* - B2P27 as STC/RDS
*/
static int fmradio_i2c_bus = -1;
static void i2c_scl_dir(bool out)
{
imx233_pinctrl_enable_gpio(1, 22, out);
}
static void i2c_sda_dir(bool out)
{
imx233_pinctrl_enable_gpio(1, 24, out);
}
static void i2c_scl_out(bool high)
{
imx233_pinctrl_set_gpio(1, 22, high);
}
static void i2c_sda_out(bool high)
{
imx233_pinctrl_set_gpio(1, 24, high);
}
static bool i2c_scl_in(void)
{
return imx233_pinctrl_get_gpio(1, 22);
}
static bool i2c_sda_in(void)
{
return imx233_pinctrl_get_gpio(1, 24);
}
static void i2c_delay(int d)
{
udelay(d);
}
struct i2c_interface fmradio_i2c =
{
.scl_dir = i2c_scl_dir,
.sda_dir = i2c_sda_dir,
.scl_out = i2c_scl_out,
.sda_out = i2c_sda_out,
.scl_in = i2c_scl_in,
.sda_in = i2c_sda_in,
.delay = i2c_delay,
.delay_hd_sta = 4,
.delay_hd_dat = 5,
.delay_su_dat = 1,
.delay_su_sto = 4,
.delay_su_sta = 5,
.delay_thigh = 4
};
void fmradio_i2c_init(void)
{
imx233_pinctrl_acquire(1, 24, "fmradio i2c");
imx233_pinctrl_acquire(1, 22, "fmradio i2c");
imx233_pinctrl_set_function(1, 24, PINCTRL_FUNCTION_GPIO);
imx233_pinctrl_set_function(1, 22, PINCTRL_FUNCTION_GPIO);
fmradio_i2c_bus = i2c_add_node(&fmradio_i2c);
}
int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count)
{
return i2c_write_data(fmradio_i2c_bus, address, -1, buf, count);
}
int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count)
{
return i2c_read_data(fmradio_i2c_bus, address, -1, buf, count);
}
#ifdef HAVE_RDS_CAP
/* Low-level RDS Support */