diff options
Diffstat (limited to 'hw/char/stm32l4x5_usart.c')
| -rw-r--r-- | hw/char/stm32l4x5_usart.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/hw/char/stm32l4x5_usart.c b/hw/char/stm32l4x5_usart.c index fc5dcac..afbe4ba 100644 --- a/hw/char/stm32l4x5_usart.c +++ b/hw/char/stm32l4x5_usart.c @@ -154,6 +154,21 @@ REG32(RDR, 0x24) REG32(TDR, 0x28) FIELD(TDR, TDR, 0, 9) +static void stm32l4x5_update_isr(Stm32l4x5UsartBaseState *s) +{ + if (s->cr1 & R_CR1_TE_MASK) { + s->isr |= R_ISR_TEACK_MASK; + } else { + s->isr &= ~R_ISR_TEACK_MASK; + } + + if (s->cr1 & R_CR1_RE_MASK) { + s->isr |= R_ISR_REACK_MASK; + } else { + s->isr &= ~R_ISR_REACK_MASK; + } +} + static void stm32l4x5_update_irq(Stm32l4x5UsartBaseState *s) { if (((s->isr & R_ISR_WUF_MASK) && (s->cr3 & R_CR3_WUFIE_MASK)) || @@ -456,6 +471,7 @@ static void stm32l4x5_usart_base_write(void *opaque, hwaddr addr, case A_CR1: s->cr1 = value; stm32l4x5_update_params(s); + stm32l4x5_update_isr(s); stm32l4x5_update_irq(s); return; case A_CR2: @@ -518,9 +534,8 @@ static const MemoryRegionOps stm32l4x5_usart_base_ops = { }, }; -static Property stm32l4x5_usart_base_properties[] = { +static const Property stm32l4x5_usart_base_properties[] = { DEFINE_PROP_CHR("chardev", Stm32l4x5UsartBaseState, chr), - DEFINE_PROP_END_OF_LIST(), }; static void stm32l4x5_usart_base_init(Object *obj) @@ -579,7 +594,8 @@ static void stm32l4x5_usart_base_realize(DeviceState *dev, Error **errp) s, NULL, true); } -static void stm32l4x5_usart_base_class_init(ObjectClass *klass, void *data) +static void stm32l4x5_usart_base_class_init(ObjectClass *klass, + const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); ResettableClass *rc = RESETTABLE_CLASS(klass); @@ -590,21 +606,21 @@ static void stm32l4x5_usart_base_class_init(ObjectClass *klass, void *data) dc->vmsd = &vmstate_stm32l4x5_usart_base; } -static void stm32l4x5_usart_class_init(ObjectClass *oc, void *data) +static void stm32l4x5_usart_class_init(ObjectClass *oc, const void *data) { Stm32l4x5UsartBaseClass *subc = STM32L4X5_USART_BASE_CLASS(oc); subc->type = STM32L4x5_USART; } -static void stm32l4x5_uart_class_init(ObjectClass *oc, void *data) +static void stm32l4x5_uart_class_init(ObjectClass *oc, const void *data) { Stm32l4x5UsartBaseClass *subc = STM32L4X5_USART_BASE_CLASS(oc); subc->type = STM32L4x5_UART; } -static void stm32l4x5_lpuart_class_init(ObjectClass *oc, void *data) +static void stm32l4x5_lpuart_class_init(ObjectClass *oc, const void *data) { Stm32l4x5UsartBaseClass *subc = STM32L4X5_USART_BASE_CLASS(oc); |