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fuzep: fix rds

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Change-Id: I15900f638f8f45cb7035a0e7b1caecb62d1d70e8
This commit is contained in:
Amaury Pouly 2017-11-04 19:27:36 +01:00
parent d9a55ac816
commit 8a925d283d
1 changed files with 10 additions and 3 deletions
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13
firmware/target/arm/imx233/sansa-fuzeplus/fmradio-i2c-fuzeplus.c
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@ -48,6 +48,14 @@ static void stc_rds_callback(int bank, int pin, intptr_t user)
semaphore_release(&rds_sema); semaphore_release(&rds_sema);
} }
static inline void enable_rds_irq(void)
{
/* pin is set to low when a RDS packet has arrived, and stays low for a minimum of 5ms. Thus
* we should not trigger on low because otherwise we might trigger several times for the same
* message. Instead trigger on falling edge (we might miss the very first message). */
imx233_pinctrl_setup_irq(2, 27, true, false, false, &stc_rds_callback, 0);
}
/* Captures RDS data and processes it */ /* Captures RDS data and processes it */
static void NORETURN_ATTR rds_thread(void) static void NORETURN_ATTR rds_thread(void)
{ {
@ -57,7 +65,7 @@ static void NORETURN_ATTR rds_thread(void)
si4700_rds_process(); si4700_rds_process();
/* renable callback */ /* renable callback */
imx233_pinctrl_setup_irq(2, 27, true, true, false, &stc_rds_callback, 0); enable_rds_irq();
} }
} }
@ -69,8 +77,7 @@ void si4700_rds_powerup(bool on)
imx233_pinctrl_acquire(2, 27, "tuner stc/rds"); imx233_pinctrl_acquire(2, 27, "tuner stc/rds");
imx233_pinctrl_set_function(2, 27, PINCTRL_FUNCTION_GPIO); imx233_pinctrl_set_function(2, 27, PINCTRL_FUNCTION_GPIO);
imx233_pinctrl_enable_gpio(2, 27, false); imx233_pinctrl_enable_gpio(2, 27, false);
/* pin is set to 0 when an RDS packet has arrived */ enable_rds_irq();
imx233_pinctrl_setup_irq(2, 27, true, true, false, &stc_rds_callback, 0);
} }
else else
{ {