altos: Work on MAX6691 driver
[fw/altos] / src / stm / ao_arch.h
index 61e62f5dc703b3bcec1877c31b188ccf9adef475..e83b6bd2cfbf3e1dac4a7c2816703fcf1214ba08 100644 (file)
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
  * STM32L definitions and code fragments for AltOS
  */
 
-#define AO_STACK_SIZE  1024
+#ifndef AO_STACK_SIZE
+#define AO_STACK_SIZE  512
+#endif
+
+#define AO_PORT_TYPE   uint16_t
 
 /* Various definitions to make GCC look more like SDCC */
 
 #define ao_arch_naked_declare  __attribute__((naked))
 #define ao_arch_naked_define
-#define __pdata
-#define __data
-#define __xdata
-#define __code const
-#define __reentrant
-#define __critical
 #define __interrupt(n)
 #define __at(n)
 
-#define ao_arch_reboot()       /* XXX */
+#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_arch_interrupt(n)   /* nothing */
 
-#undef putchar
-#undef getchar
-#define putchar(c)     ao_putchar(c)
-#define getchar                ao_getchar
-
-extern void putchar(char c);
-extern char getchar(void);
-extern void ao_avr_stdio_init(void);
-
-extern const uint16_t ao_serial_number;
-
-#define ARM_PUSH32(stack, val) (*(--(stack)) = (val))
-
-#define ao_arch_task_members\
-       uint32_t *sp;                   /* saved stack pointer */
-
-#define cli()  asm("cpsid i")
-#define sei()  asm("cpsie i")
-
-#define ao_arch_init_stack(task, start) do {                           \
-               uint32_t        *sp = (uint32_t *) (task->stack + AO_STACK_SIZE); \
-               uint32_t        a = (uint32_t) start;                   \
-               int             i;                                      \
-                                                                       \
-               /* APSR */                                              \
-               ARM_PUSH32(sp, 0);                                      \
-                                                                       \
-               /* PRIMASK with interrupts enabled */                   \
-               ARM_PUSH32(sp, 0);                                      \
-                                                                       \
-               /* Return address (goes into LR) */                     \
-               ARM_PUSH32(sp, a);                                      \
-                                                                       \
-               /* Clear register values r0-r12 */                      \
-               i = 13;                                                 \
-               while (i--)                                             \
-                       ARM_PUSH32(sp, 0);                              \
-                                                                       \
-               task->sp = sp;                                          \
-} while (0);
-       
-#define ao_arch_save_regs()    do {                                    \
-               uint32_t        apsr;                                   \
-               uint32_t        primask;                                \
-                                                                       \
-               /* Save APSR */                                         \
-               asm("mrs %0,apsr" : "=&r" (apsr));                      \
-               asm("push {%0}" : : "r" (apsr));                        \
-                                                                       \
-               /* Save PRIMASK */                                      \
-               asm("mrs %0,primask" : "=&r" (primask));                \
-               asm("push {%0}" : : "r" (primask));                     \
-                                                                       \
-               /* Save general registers */                            \
-               asm("push {r0-r12,lr}\n");                              \
-       } while (0)
-
-#define ao_arch_save_stack() do {                                      \
-               uint32_t        *sp;                                    \
-               asm("mov %0,sp" : "=&r" (sp) );                         \
-               ao_cur_task->sp = (sp);                                 \
-               if ((uint8_t *) sp < ao_cur_task->stack)                \
-                       ao_panic (AO_PANIC_STACK);                      \
-       } while (0)
-
-#define ao_arch_isr_stack()    /* nothing */
-
-#define ao_arch_cpu_idle() do {                        \
-               asm("wfi");                     \
-       } while (0)
-
-#define ao_arch_restore_stack() do { \
-               uint32_t        sp;                                     \
-               uint32_t        primask;                                \
-               uint32_t        apsr;                                   \
-               sp = (uint32_t) ao_cur_task->sp;                        \
-                                                                       \
-               /* Switch stacks */                                     \
-               asm("mov sp, %0" : : "r" (sp) );                        \
-                                                                       \
-               /* Restore general registers */                         \
-               asm("pop {r0-r12,lr}\n");                               \
-                                                                       \
-               /* Restore PRIMASK */                                   \
-               asm("pop {%0}" : "=&r" (primask) );                     \
-               asm("msr primask,%0" : : "r" (primask) );               \
-                                                                       \
-               /* Restore APSR */                                      \
-               asm("pop {%0}" : "=&r" (apsr) );                        \
-               asm("msr apsr,%0" : : "r" (apsr) );                     \
-                                                                       \
-               /* Return to calling function */                        \
-               asm("bx lr");                                           \
-       } while(0)
-
-#define ao_arch_critical(b) do { cli(); do { b } while (0); sei(); } while (0)
-
-#define AO_ARM_NUM_ADC 12
-
-struct ao_adc {
-       uint16_t        tick;                   /* tick when the sample was read */
-       uint16_t        adc[AO_ARM_NUM_ADC];    /* samples */
-};
+/*
+ * ao_romconfig.c
+ */
+
+#define AO_ROMCONFIG_SYMBOL __attribute__((section(".romconfig"))) const
 
 /*
  * For now, we're running at a weird frequency
  */
-#define STM_APB1       (16000000 * 6 / 4)
+
+#ifndef AO_HSE
+#error High speed frequency undefined
+#endif
+
+#if AO_HSE
+#define AO_PLLSRC      AO_HSE
+#else
+#define AO_PLLSRC      STM_HSI_FREQ
+#endif
+
+#define AO_PLLVCO      (AO_PLLSRC * AO_PLLMUL)
+#define AO_SYSCLK      (AO_PLLVCO / AO_PLLDIV)
+#define AO_HCLK                (AO_SYSCLK / AO_AHB_PRESCALER)
+#define AO_PCLK1       (AO_HCLK / AO_APB1_PRESCALER)
+#define AO_PCLK2       (AO_HCLK / AO_APB2_PRESCALER)
+#define AO_SYSTICK     (AO_HCLK / 8)
+
+#if AO_APB1_PRESCALER == 1
+#define AO_TIM23467_CLK                AO_PCLK1
+#else
+#define AO_TIM23467_CLK                (2 * AO_PCLK1)
+#endif
+
+#if AO_APB2_PRESCALER == 1
+#define AO_TIM91011_CLK                AO_PCLK2
+#else
+#define AO_TIM91011_CLK                (2 * AO_PCLK2)
+#endif
+
+/* The stm32l 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
 
 void ao_lcd_stm_init(void);
 
@@ -161,5 +108,23 @@ void ao_lcd_font_init(void);
 
 void ao_lcd_font_string(char *s);
 
+extern const uint32_t  ao_radio_cal;
+
+void
+ao_adc_init(void);
+
+/* ADC maximum reported value */
+#define AO_ADC_MAX                     4095
+
+#define AO_BOOT_APPLICATION_BASE       ((uint32_t *) 0x08001000)
+#define AO_BOOT_APPLICATION_BOUND      ((uint32_t *) (0x08000000 + stm_flash_size()))
+#define AO_BOOT_LOADER_BASE            ((uint32_t *) 0x08000000)
+#define HAS_BOOT_LOADER                        1
+
+#ifndef AO_LED_TYPE
+#define AO_LED_TYPE uint16_t
+#endif
+
 #endif /* _AO_ARCH_H_ */
 
+