From: Lucjan Bryndza <lbryndza....@icloud.com>
The current implementation of timers does not work properly
even in basic functionality. A counter configured to report
an interrupt every 10ms reports the first interrupts after a
few seconds. There are also no properly implemented count up and
count down modes. This commit fixes bugs with interrupt
reporting and implements the basic modes of the counter's
time-base block.
Add time base registers definitions
Signed-off-by: Lucjan Bryndza <lbryndza....@icloud.com>
---
include/hw/timer/stm32f2xx_timer.h | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/include/hw/timer/stm32f2xx_timer.h
b/include/hw/timer/stm32f2xx_timer.h
index 90f40f1746..8112878aa7 100644
--- a/include/hw/timer/stm32f2xx_timer.h
+++ b/include/hw/timer/stm32f2xx_timer.h
@@ -49,9 +49,15 @@
#define TIM_DMAR 0x4C
#define TIM_OR 0x50
-#define TIM_CR1_CEN 1
+#define TIM_CR1_CEN 0x0001
+#define TIM_CR1_DIR 0x0010
+#define TIM_CR1_CMS 0x0060
+#define TIM_CR1_OPM 0x0008
-#define TIM_EGR_UG 1
+#define TIM_SR1_UIF 0x0001
+
+#define TIM_EGR_UG 0x0001
+#define TIM_EGR_TG 0x0040
#define TIM_CCER_CC2E (1 << 4)
#define TIM_CCMR1_OC2M2 (1 << 14)
@@ -61,6 +67,7 @@
#define TIM_DIER_UIE 1
+
#define TYPE_STM32F2XX_TIMER "stm32f2xx-timer"
typedef struct STM32F2XXTimerState STM32F2XXTimerState;
DECLARE_INSTANCE_CHECKER(STM32F2XXTimerState, STM32F2XXTIMER,
@@ -99,4 +106,9 @@ struct STM32F2XXTimerState {
uint32_t tim_or;
};
+enum {
+ TIMER_UP_COUNT = 0,
+ TIMER_DOWN_COUNT = 1
+};
+
#endif /* HW_STM32F2XX_TIMER_H */
--
2.38.5
