canboot: Introduce a new canboot.h header file

Move canboot specific definitions in board/misc.h to new canboot.h
header file.  This makes it a little easier to identify differences
between canboot code and low-level upstream klipper code.

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

src/bootentry.c

@@ -10,8 +10,8 @@
 #include "board/gpio.h"     // gpio_in_setup
 #include "board/misc.h"     // set_bootup_code
 #include "bootentry.h"      // bootentry_check
+#include "canboot.h"        // udelay
 #include "ctr.h"            // DECL_CTR
-#include "sched.h"          // udelay
 
 // Generated by buildcommands.py
 DECL_CTR("DECL_BUTTON " __stringify(CONFIG_BUTTON_PIN));

src/canboot.h

@@ -0,0 +1,19 @@
+#ifndef __CANBOOT_H
+#define __CANBOOT_H
+
+#include <stdint.h> // uint32_t
+
+#define CANBOOT_SIGNATURE 0x21746f6f426e6143 // CanBoot!
+#define REQUEST_CANBOOT 0x5984E3FA6CA1589B
+#define REQUEST_START_APP 0x7b06ec45a9a8243d
+
+uint64_t get_bootup_code(void);
+void set_bootup_code(uint64_t code);
+void application_read_flash(uint32_t address, uint32_t *dest);
+int application_check_valid(void);
+void application_jump(void);
+
+void udelay(uint32_t usecs);
+void timer_setup(void);
+
+#endif // canboot.h

src/deployer.c

@@ -9,6 +9,8 @@
 #include "board/armcm_reset.h" // try_request_canboot
 #include "board/flash.h" // flash_write_block
 #include "board/io.h" // readb
+#include "board/misc.h" // timer_read_time
+#include "canboot.h" // timer_setup
 #include "deployer.h" // deployer_is_active
 #include "sched.h" // sched_check_periodic
 

src/flashcmd.c

@@ -9,6 +9,7 @@
 #include "board/flash.h" // flash_write_block
 #include "board/misc.h" // application_jump
 #include "byteorder.h" // cpu_to_le32
+#include "canboot.h" // application_jump
 #include "command.h" // command_respond_ack
 #include "flashcmd.h" // flashcmd_is_in_transfer
 #include "sched.h" // DECL_TASK

src/generic/armcm_canboot.c

@@ -9,7 +9,7 @@
 #include "autoconf.h" // CONFIG_MCU
 #include "board/internal.h" // SysTick
 #include "board/irq.h" // irq_disable
-#include "board/misc.h" // get_bootup_code
+#include "canboot.h" // get_bootup_code
 #include "command.h" // DECL_CONSTANT_STR
 
 // Export MCU type

src/generic/armcm_reset.c

@@ -9,6 +9,7 @@
 #include "board/internal.h" // NVIC_SystemReset
 #include "board/irq.h" // irq_disable
 #include "board/misc.h" // try_request_canboot
+#include "canboot.h" // REQUEST_CANBOOT
 
 void
 try_request_canboot(void)

src/generic/armcm_timer.c

@@ -9,7 +9,7 @@
 #include "board/internal.h" // SysTick
 #include "board/irq.h" // irq_disable
 #include "board/misc.h" // timer_from_us
-
+#include "canboot.h" // timer_setup
 
 // Return the number of clock ticks for a given number of microseconds
 uint32_t

src/generic/misc.h

@@ -8,18 +8,6 @@ struct command_encoder;
 void console_sendf(const struct command_encoder *ce, va_list args);
 void *console_receive_buffer(void);
 
-#define CANBOOT_SIGNATURE 0x21746f6f426e6143 // CanBoot!
-#define REQUEST_CANBOOT 0x5984E3FA6CA1589B
-#define REQUEST_START_APP 0x7b06ec45a9a8243d
-
-uint64_t get_bootup_code(void);
-void set_bootup_code(uint64_t code);
-void application_read_flash(uint32_t address, uint32_t *dest);
-int application_check_valid(void);
-void application_jump(void);
-
-void timer_setup(void);
-
 uint32_t timer_from_us(uint32_t us);
 uint8_t timer_is_before(uint32_t time1, uint32_t time2);
 uint32_t timer_read_time(void);

src/rp2040/armcm_canboot.c

@@ -10,6 +10,7 @@
 #include "board/internal.h" // SysTick
 #include "board/irq.h" // irq_disable
 #include "board/misc.h" // get_bootup_code
+#include "canboot.h" // get_bootup_code
 #include "command.h" // DECL_CONSTANT_STR
 
 // Export MCU type

src/rp2040/timer.c

@@ -8,6 +8,7 @@
 #include "board/armcm_boot.h" // armcm_enable_irq
 #include "board/irq.h" // irq_disable
 #include "board/misc.h" // timer_read_time
+#include "canboot.h" // timer_setup
 #include "hardware/structs/resets.h" // RESETS_RESET_UART0_BITS
 #include "hardware/structs/timer.h" // RESETS_RESET_UART0_BITS
 #include "internal.h" // enable_pclock

src/sched.c

@@ -7,6 +7,7 @@
 #include "board/io.h" // readb
 #include "board/misc.h" // jump_to_application
 #include "bootentry.h" // bootentry_check
+#include "canboot.h" // timer_setup
 #include "deployer.h" // deployer_is_active
 #include "sched.h" // sched_check_periodic
 

src/sched.h

@@ -17,7 +17,6 @@ struct task_wake {
 };
 
 // sched.c
-void udelay(uint32_t usecs);
 void sched_wake_tasks(void);
 void sched_wake_task(struct task_wake *w);
 uint8_t sched_check_wake(struct task_wake *w);

src/stm32/stm32f0_timer.c

@@ -9,6 +9,7 @@
 #include "board/io.h" // readl
 #include "board/irq.h" // irq_disable
 #include "board/misc.h" // timer_read_time
+#include "canboot.h" // timer_setup
 
 
 /****************************************************************