timer_irq: Rename generic/timer.c to generic/timer_irq.c

Rename the file to make it clear that the code is helper functions for
boards with irq based timers.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

src/generic/timer_irq.c

@@ -7,6 +7,7 @@
 #include "autoconf.h" // CONFIG_CLOCK_FREQ
 #include "board/irq.h" // irq_disable
 #include "board/misc.h" // timer_from_us
+#include "board/timer_irq.h" // timer_dispatch_many
 #include "command.h" // shutdown
 #include "sched.h" // sched_timer_kick
 

src/generic/timer_irq.h

@@ -0,0 +1,6 @@
+#ifndef __GENERIC_TIMER_IRQ_H
+#define __GENERIC_TIMER_IRQ_H
+
+void timer_dispatch_many(void);
+
+#endif // timer_irq.h

src/sam3x8e/Makefile

@@ -16,7 +16,7 @@ LDFLAGS-y += --specs=nano.specs --specs=nosys.specs
 
 # Add source files
 src-y += sam3x8e/main.c sam3x8e/timer.c sam3x8e/gpio.c
-src-y += generic/crc16_ccitt.c generic/armcm_irq.c generic/timer.c
+src-y += generic/crc16_ccitt.c generic/armcm_irq.c generic/timer_irq.c
 src-y += ../lib/cmsis-sam3x8e/source/system_sam3xa.c
 src-y += ../lib/cmsis-sam3x8e/source/gcc/startup_sam3xa.c
 src-$(CONFIG_SERIAL) += sam3x8e/serial.c

src/sam3x8e/timer.c

@@ -6,13 +6,11 @@
 
 #include "board/irq.h" // irq_disable
 #include "board/misc.h" // timer_read_time
+#include "board/timer_irq.h" // timer_dispatch_many
 #include "command.h" // DECL_SHUTDOWN
 #include "sam3x8e.h" // TC0
 #include "sched.h" // sched_timer_kick
 
-// From generic/timer.c
-extern void timer_dispatch_many(void);
-
 // IRQ handler
 void __visible
 TC0_Handler(void)