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lpc176x: Move irq handler code above irq setup

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Only code movement.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2019-08-22 09:16:37 -04:00
parent 44f862388f
commit 6409eda058
3 changed files with 80 additions and 75 deletions
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58
src/lpc176x/serial.c
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@@ -12,35 +12,6 @@
#include "internal.h" // gpio_peripheral
#include "sched.h" // DECL_INIT
DECL_CONSTANT_STR("RESERVE_PINS_serial", "P0.3,P0.2");
void
serial_init(void)
{
// Setup baud
LPC_UART0->LCR = (1<<7); // set DLAB bit
enable_pclock(PCLK_UART0);
uint32_t pclk = SystemCoreClock;
uint32_t div = pclk / (CONFIG_SERIAL_BAUD * 16);
LPC_UART0->DLL = div & 0xff;
LPC_UART0->DLM = (div >> 8) & 0xff;
LPC_UART0->FDR = 0x10;
LPC_UART0->LCR = 3; // 8N1 ; clear DLAB bit
// Enable fifo
LPC_UART0->FCR = 0x01;
// Setup pins
gpio_peripheral(GPIO(0, 3), 1, 0);
gpio_peripheral(GPIO(0, 2), 1, 0);
// Enable receive irq
NVIC_SetPriority(UART0_IRQn, 0);
NVIC_EnableIRQ(UART0_IRQn);
LPC_UART0->IER = 0x01;
}
DECL_INIT(serial_init);
// Write tx bytes to the serial port
static void
kick_tx(void)
@@ -81,3 +52,32 @@ serial_enable_tx_irq(void)
irq_restore(flag);
}
}
DECL_CONSTANT_STR("RESERVE_PINS_serial", "P0.3,P0.2");
void
serial_init(void)
{
// Setup baud
LPC_UART0->LCR = (1<<7); // set DLAB bit
enable_pclock(PCLK_UART0);
uint32_t pclk = SystemCoreClock;
uint32_t div = pclk / (CONFIG_SERIAL_BAUD * 16);
LPC_UART0->DLL = div & 0xff;
LPC_UART0->DLM = (div >> 8) & 0xff;
LPC_UART0->FDR = 0x10;
LPC_UART0->LCR = 3; // 8N1 ; clear DLAB bit
// Enable fifo
LPC_UART0->FCR = 0x01;
// Setup pins
gpio_peripheral(GPIO(0, 3), 1, 0);
gpio_peripheral(GPIO(0, 2), 1, 0);
// Enable receive irq
NVIC_SetPriority(UART0_IRQn, 0);
NVIC_EnableIRQ(UART0_IRQn);
LPC_UART0->IER = 0x01;
}
DECL_INIT(serial_init);