diff options
Diffstat (limited to 'src/drivers/uart')
| -rw-r--r-- | src/drivers/uart/uart8250reg.h | 72 |
1 files changed, 37 insertions, 35 deletions
diff --git a/src/drivers/uart/uart8250reg.h b/src/drivers/uart/uart8250reg.h index 573eb6ffc4..170c90eee9 100644 --- a/src/drivers/uart/uart8250reg.h +++ b/src/drivers/uart/uart8250reg.h @@ -3,16 +3,18 @@ #ifndef UART8250REG_H #define UART8250REG_H +#include <types.h> + /* Data */ #define UART8250_RBR 0x00 #define UART8250_TBR 0x00 /* Control */ #define UART8250_IER 0x01 -#define UART8250_IER_MSI 0x08 /* Enable Modem status interrupt */ -#define UART8250_IER_RLSI 0x04 /* Enable receiver line status interrupt */ -#define UART8250_IER_THRI 0x02 /* Enable Transmitter holding register int. */ -#define UART8250_IER_RDI 0x01 /* Enable receiver data interrupt */ +#define UART8250_IER_MSI BIT(3) /* Enable Modem status interrupt */ +#define UART8250_IER_RLSI BIT(2) /* Enable receiver line status interrupt */ +#define UART8250_IER_THRI BIT(1) /* Enable Transmitter holding register int. */ +#define UART8250_IER_RDI BIT(0) /* Enable receiver data interrupt */ #define UART8250_IIR 0x02 #define UART8250_IIR_NO_INT 0x01 /* No interrupts pending */ @@ -24,10 +26,10 @@ #define UART8250_IIR_RLSI 0x06 /* Receiver line status interrupt */ #define UART8250_FCR 0x02 -#define UART8250_FCR_FIFO_EN 0x01 /* Fifo enable */ -#define UART8250_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */ -#define UART8250_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */ -#define UART8250_FCR_DMA_SELECT 0x08 /* For DMA applications */ +#define UART8250_FCR_FIFO_EN BIT(0) /* Fifo enable */ +#define UART8250_FCR_CLEAR_RCVR BIT(1) /* Clear the RCVR FIFO */ +#define UART8250_FCR_CLEAR_XMIT BIT(2) /* Clear the XMIT FIFO */ +#define UART8250_FCR_DMA_SELECT BIT(3) /* For DMA applications */ #define UART8250_FCR_TRIGGER_MASK 0xC0 /* Mask for the FIFO trigger range */ #define UART8250_FCR_TRIGGER_1 0x00 /* Mask for trigger set at 1 */ #define UART8250_FCR_TRIGGER_4 0x40 /* Mask for trigger set at 4 */ @@ -40,19 +42,19 @@ #define UART8250_LCR_WLS_6 0x01 /* 6 bit character length */ #define UART8250_LCR_WLS_7 0x02 /* 7 bit character length */ #define UART8250_LCR_WLS_8 0x03 /* 8 bit character length */ -#define UART8250_LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */ -#define UART8250_LCR_PEN 0x08 /* Parity enable */ -#define UART8250_LCR_EPS 0x10 /* Even Parity Select */ -#define UART8250_LCR_STKP 0x20 /* Stick Parity */ -#define UART8250_LCR_SBRK 0x40 /* Set Break */ -#define UART8250_LCR_DLAB 0x80 /* Divisor latch access bit */ +#define UART8250_LCR_STB BIT(2) /* Number of stop Bits, off = 1, on = 1.5 or 2) */ +#define UART8250_LCR_PEN BIT(3) /* Parity enable */ +#define UART8250_LCR_EPS BIT(4) /* Even Parity Select */ +#define UART8250_LCR_STKP BIT(5) /* Stick Parity */ +#define UART8250_LCR_SBRK BIT(6) /* Set Break */ +#define UART8250_LCR_DLAB BIT(7) /* Divisor latch access bit */ #define UART8250_MCR 0x04 -#define UART8250_MCR_DTR 0x01 /* DTR */ -#define UART8250_MCR_RTS 0x02 /* RTS */ -#define UART8250_MCR_OUT1 0x04 /* Out 1 */ -#define UART8250_MCR_OUT2 0x08 /* Out 2 */ -#define UART8250_MCR_LOOP 0x10 /* Enable loopback test mode */ +#define UART8250_MCR_DTR BIT(0) /* DTR */ +#define UART8250_MCR_RTS BIT(1) /* RTS */ +#define UART8250_MCR_OUT1 BIT(2) /* Out 1 */ +#define UART8250_MCR_OUT2 BIT(3) /* Out 2 */ +#define UART8250_MCR_LOOP BIT(4) /* Enable loopback test mode */ #define UART8250_MCR_DMA_EN 0x04 #define UART8250_MCR_TX_DFR 0x08 @@ -62,24 +64,24 @@ /* Status */ #define UART8250_LSR 0x05 -#define UART8250_LSR_DR 0x01 /* Data ready */ -#define UART8250_LSR_OE 0x02 /* Overrun */ -#define UART8250_LSR_PE 0x04 /* Parity error */ -#define UART8250_LSR_FE 0x08 /* Framing error */ -#define UART8250_LSR_BI 0x10 /* Break */ -#define UART8250_LSR_THRE 0x20 /* Xmit holding register empty */ -#define UART8250_LSR_TEMT 0x40 /* Xmitter empty */ -#define UART8250_LSR_ERR 0x80 /* Error */ +#define UART8250_LSR_DR BIT(0) /* Data ready */ +#define UART8250_LSR_OE BIT(1) /* Overrun */ +#define UART8250_LSR_PE BIT(2) /* Parity error */ +#define UART8250_LSR_FE BIT(3) /* Framing error */ +#define UART8250_LSR_BI BIT(4) /* Break */ +#define UART8250_LSR_THRE BIT(5) /* Xmit holding register empty */ +#define UART8250_LSR_TEMT BIT(6) /* Xmitter empty */ +#define UART8250_LSR_ERR BIT(7) /* Error */ #define UART8250_MSR 0x06 -#define UART8250_MSR_DCD 0x80 /* Data Carrier Detect */ -#define UART8250_MSR_RI 0x40 /* Ring Indicator */ -#define UART8250_MSR_DSR 0x20 /* Data Set Ready */ -#define UART8250_MSR_CTS 0x10 /* Clear to Send */ -#define UART8250_MSR_DDCD 0x08 /* Delta DCD */ -#define UART8250_MSR_TERI 0x04 /* Trailing edge ring indicator */ -#define UART8250_MSR_DDSR 0x02 /* Delta DSR */ -#define UART8250_MSR_DCTS 0x01 /* Delta CTS */ +#define UART8250_MSR_DCD BIT(7) /* Data Carrier Detect */ +#define UART8250_MSR_RI BIT(6) /* Ring Indicator */ +#define UART8250_MSR_DSR BIT(5) /* Data Set Ready */ +#define UART8250_MSR_CTS BIT(4) /* Clear to Send */ +#define UART8250_MSR_DDCD BIT(3) /* Delta DCD */ +#define UART8250_MSR_TERI BIT(2) /* Trailing edge ring indicator */ +#define UART8250_MSR_DDSR BIT(1) /* Delta DSR */ +#define UART8250_MSR_DCTS BIT(0) /* Delta CTS */ #define UART8250_SCR 0x07 #define UART8250_SPR 0x07 |