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make fmradio-i2c code from clip more generic, so it works for m200v4 and hopefully all other as3525 targets.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19370 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dominik Wenger 2008-12-09 17:21:16 +00:00
parent 4ae9de5490
commit 02184a242e
2 changed files with 31 additions and 10 deletions
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2
firmware/SOURCES
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@ -1094,6 +1094,8 @@ target/arm/lcd-ssd1815.c
target/arm/as3525/sansa-m200v4/button-m200v4.c target/arm/as3525/sansa-m200v4/button-m200v4.c
#ifndef BOOTLOADER #ifndef BOOTLOADER
target/arm/as3525/powermgmt-as3525.c target/arm/as3525/powermgmt-as3525.c
drivers/generic_i2c.c
target/arm/as3525/fmradio-i2c-as3525.c
#endif /* !BOOTLOADER */ #endif /* !BOOTLOADER */
#endif /* !SIMULATOR */ #endif /* !SIMULATOR */
#endif /* SANSA_M200V4 */ #endif /* SANSA_M200V4 */

39
firmware/target/arm/as3525/sansa-clip/fmradio-i2c-clip.c → firmware/target/arm/as3525/fmradio-i2c-as3525.c
View file

@ -31,57 +31,70 @@
#include "generic_i2c.h" #include "generic_i2c.h"
#include "fmradio_i2c.h" #include "fmradio_i2c.h"
#if defined(SANSA_CLIP)
#define I2C_GPIO(x) GPIOB_PIN(x)
#define I2C_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_M200V4)
#define I2C_GPIO(x) GPIOD_PIN(x)
#define I2C_GPIO_DIR GPIOD_DIR
#define I2C_SCL_PIN 7
#define I2C_SDA_PIN 6
#elif
#error no FM I2C GPIOPIN defines
#endif
static void fm_scl_hi(void) static void fm_scl_hi(void)
{ {
GPIOB_PIN(I2C_SCL_PIN) = 1 << I2C_SCL_PIN; I2C_GPIO(I2C_SCL_PIN) = 1 << I2C_SCL_PIN;
} }
static void fm_scl_lo(void) static void fm_scl_lo(void)
{ {
GPIOB_PIN(I2C_SCL_PIN) = 0; I2C_GPIO(I2C_SCL_PIN) = 0;
} }
static void fm_sda_hi(void) static void fm_sda_hi(void)
{ {
GPIOB_PIN(I2C_SDA_PIN) = 1 << I2C_SDA_PIN; I2C_GPIO(I2C_SDA_PIN) = 1 << I2C_SDA_PIN;
} }
static void fm_sda_lo(void) static void fm_sda_lo(void)
{ {
GPIOB_PIN(I2C_SDA_PIN) = 0; I2C_GPIO(I2C_SDA_PIN) = 0;
} }
static void fm_sda_input(void) static void fm_sda_input(void)
{ {
GPIOB_DIR &= ~(1 << I2C_SDA_PIN); I2C_GPIO_DIR &= ~(1 << I2C_SDA_PIN);
} }
static void fm_sda_output(void) static void fm_sda_output(void)
{ {
GPIOB_DIR |= 1 << I2C_SDA_PIN; I2C_GPIO_DIR |= 1 << I2C_SDA_PIN;
} }
static void fm_scl_input(void) static void fm_scl_input(void)
{ {
GPIOB_DIR &= ~(1 << I2C_SCL_PIN); I2C_GPIO_DIR &= ~(1 << I2C_SCL_PIN);
} }
static void fm_scl_output(void) static void fm_scl_output(void)
{ {
GPIOB_DIR |= 1 << I2C_SCL_PIN; I2C_GPIO_DIR |= 1 << I2C_SCL_PIN;
} }
static int fm_sda(void) static int fm_sda(void)
{ {
return GPIOB_PIN(I2C_SDA_PIN); return I2C_GPIO(I2C_SDA_PIN);
} }
static int fm_scl(void) static int fm_scl(void)
{ {
return GPIOB_PIN(I2C_SCL_PIN); return I2C_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 */
@ -96,7 +109,13 @@ static void fm_delay(void)
/* interface towards the generic i2c driver */ /* interface towards the generic i2c driver */
static struct i2c_interface fm_i2c_interface = { static struct i2c_interface fm_i2c_interface = {
#if defined(SANSA_CLIP)
.address = 0x10 << 1, .address = 0x10 << 1,
#elif defined(SANSA_M200V4)
.address = 0xC0,
#elif
#error no fm i2c address defined
#endif
.scl_hi = fm_scl_hi, .scl_hi = fm_scl_hi,
.scl_lo = fm_scl_lo, .scl_lo = fm_scl_lo,