X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fstm%2Fao_arch_funcs.h;h=1e78cabc5fbadb9a9519aaf9a63f1321a7a6d7a0;hp=ca451a53239cf34c805bcfc7f89e1c3db1aae4bd;hb=4a90eec4b8ee4a35711aa74c13b3f30d12c0fe08;hpb=9b978cd467f9128f3069765dd8fbf8abad3459a4

diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h
index ca451a53..1e78cabc 100644
--- a/src/stm/ao_arch_funcs.h
+++ b/src/stm/ao_arch_funcs.h
@@ -23,7 +23,7 @@
 
 /* PCLK is set to 16MHz (HCLK 32MHz, APB prescaler 2) */
 
-#define AO_SPI_SPEED_8MHz	STM_SPI_CR1_BR_PCLK_2	/* This doesn't appear to work */
+#define AO_SPI_SPEED_8MHz	STM_SPI_CR1_BR_PCLK_2
 #define AO_SPI_SPEED_4MHz	STM_SPI_CR1_BR_PCLK_4
 #define AO_SPI_SPEED_2MHz	STM_SPI_CR1_BR_PCLK_8
 #define AO_SPI_SPEED_1MHz	STM_SPI_CR1_BR_PCLK_16
@@ -32,7 +32,7 @@
 #define AO_SPI_SPEED_125kHz	STM_SPI_CR1_BR_PCLK_128
 #define AO_SPI_SPEED_62500Hz	STM_SPI_CR1_BR_PCLK_256
 
-#define AO_SPI_SPEED_FAST	AO_SPI_SPEED_4MHz
+#define AO_SPI_SPEED_FAST	AO_SPI_SPEED_8MHz
 
 /* Companion bus wants something no faster than 200kHz */
 
@@ -113,6 +113,19 @@ ao_spi_init(void);
 			stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_GPIOEEN); \
 	} while (0)
 
+#define ao_disable_port(port) do {					\
+		if ((port) == &stm_gpioa)				\
+			stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIOAEN); \
+		else if ((port) == &stm_gpiob)				\
+			stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIOBEN); \
+		else if ((port) == &stm_gpioc)				\
+			stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIOCEN); \
+		else if ((port) == &stm_gpiod)				\
+			stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIODEN); \
+		else if ((port) == &stm_gpioe)				\
+			stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_GPIOEEN); \
+	} while (0)
+
 
 #define ao_gpio_set(port, bit, pin, v) stm_gpio_set(port, bit, v)
 
@@ -124,9 +137,7 @@ ao_spi_init(void);
 		stm_moder_set(port, bit, STM_MODER_OUTPUT);\
 	} while (0)
 
-#define ao_enable_input(port,bit,mode) do {				\
-		ao_enable_port(port);					\
-		stm_moder_set(port, bit, STM_MODER_INPUT);		\
+#define ao_gpio_set_mode(port,bit,mode) do {				\
 		if (mode == AO_EXTI_MODE_PULL_UP)			\
 			stm_pupdr_set(port, bit, STM_PUPDR_PULL_UP);	\
 		else if (mode == AO_EXTI_MODE_PULL_DOWN)		\
@@ -134,6 +145,12 @@ ao_spi_init(void);
 		else							\
 			stm_pupdr_set(port, bit, STM_PUPDR_NONE);	\
 	} while (0)
+	
+#define ao_enable_input(port,bit,mode) do {				\
+		ao_enable_port(port);					\
+		stm_moder_set(port, bit, STM_MODER_INPUT);		\
+		ao_gpio_set_mode(port, bit, mode);			\
+	} while (0)
 
 #define ao_enable_cs(port,bit) do {				\
 		stm_gpio_set((port), bit, 1);			\
@@ -210,6 +227,26 @@ ao_i2c_recv(void *block, uint16_t len, uint8_t i2c_index, uint8_t stop);
 void
 ao_i2c_init(void);
 
+/* ao_serial_stm.c */
+struct ao_stm_usart {
+	struct ao_fifo		rx_fifo;
+	struct ao_fifo		tx_fifo;
+	struct stm_usart	*reg;
+	uint8_t			tx_started;
+};
+
+#if HAS_SERIAL_1
+extern struct ao_stm_usart	ao_stm_usart1;
+#endif
+
+#if HAS_SERIAL_2
+extern struct ao_stm_usart	ao_stm_usart2;
+#endif
+
+#if HAS_SERIAL_3
+extern struct ao_stm_usart	ao_stm_usart3;
+#endif
+
 #define ARM_PUSH32(stack, val)	(*(--(stack)) = (val))
 
 static inline uint32_t
@@ -230,6 +267,7 @@ ao_arch_memory_barrier() {
 	asm volatile("" ::: "memory");
 }
 
+#if HAS_TASK
 static inline void
 ao_arch_init_stack(struct ao_task *task, void *start)
 {
@@ -297,10 +335,27 @@ static inline void ao_arch_restore_stack(void) {
 	asm("bx lr");
 }
 
+#define HAS_ARCH_START_SCHEDULER	1
+
+static inline void ao_arch_start_scheduler(void) {
+	uint32_t	sp;
+	uint32_t	control;
+
+	asm("mrs %0,msp" : "=&r" (sp));
+	asm("msr psp,%0" : : "r" (sp));
+	asm("mrs %0,control" : "=&r" (control));
+	control |= (1 << 1);
+	asm("msr control,%0" : : "r" (control));
+}
+
 #define ao_arch_isr_stack()
 
-#define ao_arch_cpu_idle() do {			\
+#endif
+
+#define ao_arch_wait_interrupt() do {			\
 		asm(".global ao_idle_loc\n\twfi\nao_idle_loc:");	\
+		ao_arch_release_interrupts();				\
+		ao_arch_block_interrupts();				\
 	} while (0)
 
 #define ao_arch_critical(b) do {				\