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cc2538: gpio: Factor out duplicated ISR code

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This makes the code easier to maintain, and this reduces the binary
image size.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
This commit is contained in:
Benoît Thébaudeau 2015-04-08 23:27:37 +02:00
parent 6c706e53ee
commit 41d9078ed4
1 changed files with 21 additions and 52 deletions
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73
cpu/cc2538/dev/gpio.c
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@ -79,69 +79,38 @@ notify(uint8_t mask, uint8_t port)
} }
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port A */ /** \brief Interrupt service routine for Port \a port
void * \param port Number between 0 and 3. Port A: 0, Port B: 1, etc.
gpio_port_a_isr() */
static void
gpio_port_isr(uint8_t port)
{ {
uint32_t base;
lpm_exit(); lpm_exit();
ENERGEST_ON(ENERGEST_TYPE_IRQ); ENERGEST_ON(ENERGEST_TYPE_IRQ);
notify(REG(GPIO_A_BASE + GPIO_MIS), GPIO_A_NUM); base = GPIO_PORT_TO_BASE(port);
GPIO_CLEAR_INTERRUPT(GPIO_A_BASE, 0xFF); notify(REG(base + GPIO_MIS), port);
GPIO_CLEAR_POWER_UP_INTERRUPT(GPIO_A_NUM, 0xFF);
GPIO_CLEAR_INTERRUPT(base, 0xFF);
GPIO_CLEAR_POWER_UP_INTERRUPT(port, 0xFF);
ENERGEST_OFF(ENERGEST_TYPE_IRQ); ENERGEST_OFF(ENERGEST_TYPE_IRQ);
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port B */ #define GPIO_PORT_ISR(lowercase_port, uppercase_port) \
void void \
gpio_port_b_isr() gpio_port_##lowercase_port##_isr(void) \
{ { \
lpm_exit(); gpio_port_isr(GPIO_##uppercase_port##_NUM); \
ENERGEST_ON(ENERGEST_TYPE_IRQ);
notify(REG(GPIO_B_BASE + GPIO_MIS), GPIO_B_NUM);
GPIO_CLEAR_INTERRUPT(GPIO_B_BASE, 0xFF);
GPIO_CLEAR_POWER_UP_INTERRUPT(GPIO_B_NUM, 0xFF);
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
/*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port C */
void
gpio_port_c_isr()
{
lpm_exit();
ENERGEST_ON(ENERGEST_TYPE_IRQ);
notify(REG(GPIO_C_BASE + GPIO_MIS), GPIO_C_NUM);
GPIO_CLEAR_INTERRUPT(GPIO_C_BASE, 0xFF);
GPIO_CLEAR_POWER_UP_INTERRUPT(GPIO_C_NUM, 0xFF);
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
/*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port D */
void
gpio_port_d_isr()
{
lpm_exit();
ENERGEST_ON(ENERGEST_TYPE_IRQ);
notify(REG(GPIO_D_BASE + GPIO_MIS), GPIO_D_NUM);
GPIO_CLEAR_INTERRUPT(GPIO_D_BASE, 0xFF);
GPIO_CLEAR_POWER_UP_INTERRUPT(GPIO_D_NUM, 0xFF);
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
} }
GPIO_PORT_ISR(a, A)
GPIO_PORT_ISR(b, B)
GPIO_PORT_ISR(c, C)
GPIO_PORT_ISR(d, D)
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
void void
gpio_init() gpio_init()