len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-12-10 13:45:10 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

as3525 FM i2c : don't assume SCL and SDA are on the same GPIO

Browse source 
This seems to be the case for the Fuzev2

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25817 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-05-05 02:27:18 +00:00
parent e6bb174c62
commit aec0af5413
1 changed files with 26 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

44
firmware/target/arm/as3525/fmradio-i2c-as3525.c
View file

@ -32,26 +32,34 @@
#include "fmradio_i2c.h" #include "fmradio_i2c.h"
#if defined(SANSA_CLIP) || defined(SANSA_C200V2) #if defined(SANSA_CLIP) || defined(SANSA_C200V2)
#define I2C_GPIO(x) GPIOB_PIN(x) #define I2C_SCL_GPIO(x) GPIOB_PIN(x)
#define I2C_GPIO_DIR GPIOB_DIR #define I2C_SDA_GPIO(x) GPIOB_PIN(x)
#define I2C_SCL_GPIO_DIR GPIOB_DIR
#define I2C_SDA_GPIO_DIR GPIOB_DIR
#define I2C_SCL_PIN 4 #define I2C_SCL_PIN 4
#define I2C_SDA_PIN 5 #define I2C_SDA_PIN 5
#elif defined(SANSA_CLIPV2) || defined(SANSA_CLIPPLUS) #elif defined(SANSA_CLIPV2) || defined(SANSA_CLIPPLUS)
#define I2C_GPIO(x) GPIOB_PIN(x) #define I2C_SCL_GPIO(x) GPIOB_PIN(x)
#define I2C_GPIO_DIR GPIOB_DIR #define I2C_SDA_GPIO(x) GPIOB_PIN(x)
#define I2C_SCL_GPIO_DIR GPIOB_DIR
#define I2C_SDA_GPIO_DIR GPIOB_DIR
#define I2C_SCL_PIN 6 #define I2C_SCL_PIN 6
#define I2C_SDA_PIN 7 #define I2C_SDA_PIN 7
#elif defined(SANSA_M200V4) #elif defined(SANSA_M200V4)
#define I2C_GPIO(x) GPIOD_PIN(x) #define I2C_SCL_GPIO(x) GPIOD_PIN(x)
#define I2C_GPIO_DIR GPIOD_DIR #define I2C_SDA_GPIO(x) GPIOD_PIN(x)
#define I2C_SCL_GPIO_DIR GPIOD_DIR
#define I2C_SDA_GPIO_DIR GPIOD_DIR
#define I2C_SCL_PIN 7 #define I2C_SCL_PIN 7
#define I2C_SDA_PIN 6 #define I2C_SDA_PIN 6
#elif defined(SANSA_FUZE) || defined(SANSA_E200V2) #elif defined(SANSA_FUZE) || defined(SANSA_E200V2)
#define I2C_GPIO(x) GPIOA_PIN(x) #define I2C_SCL_GPIO(x) GPIOA_PIN(x)
#define I2C_GPIO_DIR GPIOA_DIR #define I2C_SDA_GPIO(x) GPIOA_PIN(x)
#define I2C_SCL_GPIO_DIR GPIOA_DIR
#define I2C_SDA_GPIO_DIR GPIOA_DIR
#define I2C_SCL_PIN 6 #define I2C_SCL_PIN 6
#define I2C_SDA_PIN 7 #define I2C_SDA_PIN 7
@ -63,52 +71,52 @@ static int fm_i2c_bus;
static void fm_scl_hi(void) static void fm_scl_hi(void)
{ {
I2C_GPIO(I2C_SCL_PIN) = 1 << I2C_SCL_PIN; I2C_SCL_GPIO(I2C_SCL_PIN) = 1 << I2C_SCL_PIN;
} }
static void fm_scl_lo(void) static void fm_scl_lo(void)
{ {
I2C_GPIO(I2C_SCL_PIN) = 0; I2C_SCL_GPIO(I2C_SCL_PIN) = 0;
} }
static void fm_sda_hi(void) static void fm_sda_hi(void)
{ {
I2C_GPIO(I2C_SDA_PIN) = 1 << I2C_SDA_PIN; I2C_SDA_GPIO(I2C_SDA_PIN) = 1 << I2C_SDA_PIN;
} }
static void fm_sda_lo(void) static void fm_sda_lo(void)
{ {
I2C_GPIO(I2C_SDA_PIN) = 0; I2C_SDA_GPIO(I2C_SDA_PIN) = 0;
} }
static void fm_sda_input(void) static void fm_sda_input(void)
{ {
I2C_GPIO_DIR &= ~(1 << I2C_SDA_PIN); I2C_SDA_GPIO_DIR &= ~(1 << I2C_SDA_PIN);
} }
static void fm_sda_output(void) static void fm_sda_output(void)
{ {
I2C_GPIO_DIR |= 1 << I2C_SDA_PIN; I2C_SDA_GPIO_DIR |= 1 << I2C_SDA_PIN;
} }
static void fm_scl_input(void) static void fm_scl_input(void)
{ {
I2C_GPIO_DIR &= ~(1 << I2C_SCL_PIN); I2C_SCL_GPIO_DIR &= ~(1 << I2C_SCL_PIN);
} }
static void fm_scl_output(void) static void fm_scl_output(void)
{ {
I2C_GPIO_DIR |= 1 << I2C_SCL_PIN; I2C_SCL_GPIO_DIR |= 1 << I2C_SCL_PIN;
} }
static int fm_sda(void) static int fm_sda(void)
{ {
return I2C_GPIO(I2C_SDA_PIN); return I2C_SDA_GPIO(I2C_SDA_PIN);
} }
static int fm_scl(void) static int fm_scl(void)
{ {
return I2C_GPIO(I2C_SCL_PIN); return I2C_SCL_GPIO(I2C_SCL_PIN);
} }
/* simple and crude delay, used for all delays in the generic i2c driver */ /* simple and crude delay, used for all delays in the generic i2c driver */