Merge branch 'master' of ssh://git.gag.com/scm/git/fw/altos

[fw/altos] / src / stm32f4 / ao_arch.h

diff --git a/src/stm32f4/ao_arch.h b/src/stm32f4/ao_arch.h
new file mode 100644 (file)
index 0000000..73dc3e9
--- /dev/null
+++ b/src/stm32f4/ao_arch.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright © 2018 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef _AO_ARCH_H_
+#define _AO_ARCH_H_
+
+#include <stdio.h>
+#include <stm32f4.h>
+
+#ifndef AO_STACK_SIZE
+#define AO_STACK_SIZE  2048
+#endif
+
+#ifndef HAS_TASK_QUEUE
+#define HAS_TASK_QUEUE 1
+#endif
+
+#define AO_STACK_ALIGNMENT __attribute__ ((aligned(8)))
+
+#define AO_PORT_TYPE   uint16_t
+
+#define ao_arch_reboot() \
+       (stm_scb.aircr = ((STM_SCB_AIRCR_VECTKEY_KEY << STM_SCB_AIRCR_VECTKEY) | \
+                         (1 << STM_SCB_AIRCR_SYSRESETREQ)))
+
+#define ao_arch_nop()          asm("nop")
+
+#define AO_ROMCONFIG_SYMBOL __attribute__((section(".romconfig"))) const
+
+#define ao_arch_task_members\
+       uint32_t *sp;                   /* saved stack pointer */
+
+#define ao_arch_naked_declare  __attribute__((naked))
+#define ao_arch_naked_define
+
+/*
+ * ao_timer.c
+ *
+ * We'll generally use the HSE clock through the PLL
+ */
+
+#define AO_STM_NVIC_CLOCK_PRIORITY     0xf0    /* low priority for clock */
+
+#if AO_HSE
+#define AO_PLLSRC      AO_HSE
+#endif
+
+#if AO_HSI
+#define AO_PLLSRC      STM_HSI_FREQ
+#endif
+
+#if AO_PLL_M
+#define AO_PLLIN       (AO_PLLSRC / AO_PLL_M)
+#endif
+
+#if AO_PLL1_N
+
+#define AO_PLL1_VCO    (AO_PLLIN * AO_PLL1_N)
+#define AO_PLL1_CLK_P  (AO_PLL1_VCO / AO_PLL1_P)
+#define AO_SYSCLK      (AO_PLL1_CLK_P)
+
+# if AO_PLL1_Q
+#define AO_PLL1_CLK_Q  (AO_PLL1_VCO / AO_PLL1_Q)
+# endif
+
+#else
+
+#define AO_SYSCLK      AO_PLLSRC
+
+#endif
+
+#if AO_PLL2_N
+
+#define AO_PLL2_VCO    (AO_PLLIN * AO_PLL2_N)
+
+# if AO_PLL2_Q
+#define AO_PLL2_CLK_Q  (AL_PLL2_VCO / AO_PLL2_Q)
+# endif
+
+# if AO_PLL2_R
+#define AO_PLL2_CLK_R  (AL_PLL2_VCO / AO_PLL2_R)
+# endif
+
+#endif
+
+#define AO_HCLK                (AO_SYSCLK / AO_AHB_PRESCALER)
+#define AO_P1CLK       (AO_HCLK / AO_APB1_PRESCALER)
+#if AO_ABP1_PRESCALER == 1
+#define AO_P1_TIMER_CLK        AO_P1CLK
+#else
+#define AO_P1_TIMER_CLK        (AO_P1CLK * 2)
+#endif
+#define AO_P2CLK       (AO_HCLK / AO_APB2_PRESCALER)
+#if AO_ABP2_PRESCALER == 1
+#define AO_P2_TIMER_CLK        AO_P2CLK
+#else
+#define AO_P2_TIMER_CLK        (AO_P2CLK * 2)
+#endif
+#define AO_SYSTICK     (AO_HCLK)
+#define AO_PANIC_DELAY_SCALE  (AO_SYSCLK / 12000000)
+
+/* The stm32f413 implements only 4 bits of the priority fields? */
+
+#if AO_NONMASK_INTERRUPT
+#define AO_STM_NVIC_NONMASK_PRIORITY   0x00
+
+/* Set the basepri register to this value to mask all
+ * non-maskable priorities
+ */
+#define AO_STM_NVIC_BASEPRI_MASK       0x10
+#endif
+
+#define AO_STM_NVIC_HIGH_PRIORITY      0x40
+#define AO_STM_NVIC_MED_PRIORITY       0x80
+#define AO_STM_NVIC_LOW_PRIORITY       0xC0
+#define AO_STM_NVIC_CLOCK_PRIORITY     0xf0
+
+#define AO_GPIO_MODE_PULL_NONE 0
+#define AO_GPIO_MODE_PULL_UP   4
+#define AO_GPIO_MODE_PULL_DOWN 8
+
+/* usart stuff */
+
+#define AO_SERIAL_SPEED_4800   4800
+#define AO_SERIAL_SPEED_9600   9600
+#define AO_SERIAL_SPEED_19200  19200
+#define AO_SERIAL_SPEED_57600  57600
+#define AO_SERIAL_SPEED_115200 115200
+
+#endif /* _AO_ARCH_H_ */