diff options
Diffstat (limited to 'sys/dev/ic/ns16550.h')
| -rw-r--r-- | sys/dev/ic/ns16550.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/dev/ic/ns16550.h b/sys/dev/ic/ns16550.h index 400088c1a0c1..635270c4a3dd 100644 --- a/sys/dev/ic/ns16550.h +++ b/sys/dev/ic/ns16550.h @@ -52,6 +52,7 @@ #define REG_IIR com_iir #define IIR_IMASK 0xf #define IIR_RXTOUT 0xc +#define IIR_BUSY 0x7 #define IIR_RLS 0x6 #define IIR_RXRDY 0x4 #define IIR_TXRDY 0x2 @@ -181,6 +182,10 @@ #define com_xoff1 6 /* XOFF 1 character (R/W) */ #define com_xoff2 7 /* XOFF 2 character (R/W) */ +#define com_usr 39 /* Octeon 16750/16550 Uart Status Reg */ +#define REG_USR com_usr +#define USR_TXFIFO_NOTFULL 2 /* Uart TX FIFO Not full */ + /* 16950 register #1. Access enabled by ACR[7]. Also requires !LCR[7]. */ #define com_asr 1 /* additional status register (R[0-7]/W[0-1]) */ |