diff options
Diffstat (limited to 'drivers/tty/serial/stm32-usart.h')
| -rw-r--r-- | drivers/tty/serial/stm32-usart.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h index 07ac291328cd..e23916bfbb60 100644 --- a/drivers/tty/serial/stm32-usart.h +++ b/drivers/tty/serial/stm32-usart.h @@ -109,7 +109,7 @@ struct stm32_usart_info stm32h7_info = { /* USART_SR (F4) / USART_ISR (F7) */ #define USART_SR_PE BIT(0) #define USART_SR_FE BIT(1) -#define USART_SR_NF BIT(2) +#define USART_SR_NE BIT(2) /* F7 (NF for F4) */ #define USART_SR_ORE BIT(3) #define USART_SR_IDLE BIT(4) #define USART_SR_RXNE BIT(5) @@ -126,7 +126,8 @@ struct stm32_usart_info stm32h7_info = { #define USART_SR_SBKF BIT(18) /* F7 */ #define USART_SR_WUF BIT(20) /* H7 */ #define USART_SR_TEACK BIT(21) /* F7 */ -#define USART_SR_ERR_MASK (USART_SR_ORE | USART_SR_FE | USART_SR_PE) +#define USART_SR_ERR_MASK (USART_SR_ORE | USART_SR_NE | USART_SR_FE |\ + USART_SR_PE) /* Dummy bits */ #define USART_SR_DUMMY_RX BIT(16) @@ -246,9 +247,9 @@ struct stm32_usart_info stm32h7_info = { #define STM32_SERIAL_NAME "ttySTM" #define STM32_MAX_PORTS 8 -#define RX_BUF_L 200 /* dma rx buffer length */ -#define RX_BUF_P RX_BUF_L /* dma rx buffer period */ -#define TX_BUF_L 200 /* dma tx buffer length */ +#define RX_BUF_L 4096 /* dma rx buffer length */ +#define RX_BUF_P (RX_BUF_L / 2) /* dma rx buffer period */ +#define TX_BUF_L RX_BUF_L /* dma tx buffer length */ struct stm32_port { struct uart_port port; @@ -264,6 +265,7 @@ struct stm32_port { u32 cr3_irq; /* USART_CR3_RXFTIE */ int last_res; bool tx_dma_busy; /* dma tx busy */ + bool throttled; /* port throttled */ bool hw_flow_control; bool swap; /* swap RX & TX pins */ bool fifoen; @@ -272,6 +274,7 @@ struct stm32_port { bool wakeup_src; int rdr_mask; /* receive data register mask */ struct mctrl_gpios *gpios; /* modem control gpios */ + struct dma_tx_state rx_dma_state; }; static struct stm32_port stm32_ports[STM32_MAX_PORTS]; |