diff options
Diffstat (limited to 'drivers/tty/serial/sh-sci.h')
| -rw-r--r-- | drivers/tty/serial/sh-sci.h | 44 |
1 files changed, 34 insertions, 10 deletions
diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h index 5282738375ae..3939513b0454 100644 --- a/drivers/tty/serial/sh-sci.h +++ b/drivers/tty/serial/sh-sci.h @@ -50,10 +50,16 @@ enum { #define SCI_FER BIT(4) /* Framing Error */ #define SCI_PER BIT(3) /* Parity Error */ #define SCI_TEND BIT(2) /* Transmit End */ +#define SCI_RESERVED 0x03 /* All reserved bits */ #define SCI_DEFAULT_ERROR_MASK (SCI_PER | SCI_FER) -/* SCxSR (Serial Status Register) on SCIF, HSCIF */ +#define SCI_RDxF_CLEAR ~(SCI_RESERVED | SCI_RDRF) +#define SCI_ERROR_CLEAR ~(SCI_RESERVED | SCI_PER | SCI_FER | SCI_ORER) +#define SCI_TDxE_CLEAR ~(SCI_RESERVED | SCI_TEND | SCI_TDRE) +#define SCI_BREAK_CLEAR ~(SCI_RESERVED | SCI_PER | SCI_FER | SCI_ORER) + +/* SCxSR (Serial Status Register) on SCIF, SCIFA, SCIFB, HSCIF */ #define SCIF_ER BIT(7) /* Receive Error */ #define SCIF_TEND BIT(6) /* Transmission End */ #define SCIF_TDFE BIT(5) /* Transmit FIFO Data Empty */ @@ -62,8 +68,18 @@ enum { #define SCIF_PER BIT(2) /* Parity Error */ #define SCIF_RDF BIT(1) /* Receive FIFO Data Full */ #define SCIF_DR BIT(0) /* Receive Data Ready */ +/* SCIF only (optional) */ +#define SCIF_PERC 0xf000 /* Number of Parity Errors */ +#define SCIF_FERC 0x0f00 /* Number of Framing Errors */ +/*SCIFA/SCIFB and SCIF on SH7705/SH7720/SH7721 only */ +#define SCIFA_ORER BIT(9) /* Overrun Error */ + +#define SCIF_DEFAULT_ERROR_MASK (SCIF_PER | SCIF_FER | SCIF_BRK | SCIF_ER) -#define SCIF_DEFAULT_ERROR_MASK (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) +#define SCIF_RDxF_CLEAR ~(SCIF_DR | SCIF_RDF) +#define SCIF_ERROR_CLEAR ~(SCIFA_ORER | SCIF_PER | SCIF_FER | SCIF_ER) +#define SCIF_TDxE_CLEAR ~(SCIF_TDFE) +#define SCIF_BREAK_CLEAR ~(SCIF_PER | SCIF_FER | SCIF_BRK) /* SCFCR (FIFO Control Register) */ #define SCFCR_MCE BIT(3) /* Modem Control Enable */ @@ -106,14 +122,22 @@ enum { defined(CONFIG_ARCH_SH73A0) || \ defined(CONFIG_ARCH_R8A7740) -# define SCxSR_RDxF_CLEAR(port) (serial_port_in(port, SCxSR) & 0xfffc) -# define SCxSR_ERROR_CLEAR(port) (serial_port_in(port, SCxSR) & 0xfd73) -# define SCxSR_TDxE_CLEAR(port) (serial_port_in(port, SCxSR) & 0xffdf) -# define SCxSR_BREAK_CLEAR(port) (serial_port_in(port, SCxSR) & 0xffe3) +# define SCxSR_RDxF_CLEAR(port) \ + (serial_port_in(port, SCxSR) & SCIF_RDxF_CLEAR) +# define SCxSR_ERROR_CLEAR(port) \ + (serial_port_in(port, SCxSR) & SCIF_ERROR_CLEAR) +# define SCxSR_TDxE_CLEAR(port) \ + (serial_port_in(port, SCxSR) & SCIF_TDxE_CLEAR) +# define SCxSR_BREAK_CLEAR(port) \ + (serial_port_in(port, SCxSR) & SCIF_BREAK_CLEAR) #else -# define SCxSR_RDxF_CLEAR(port) (((port)->type == PORT_SCI) ? 0xbc : 0x00fc) -# define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073) -# define SCxSR_TDxE_CLEAR(port) (((port)->type == PORT_SCI) ? 0x78 : 0x00df) -# define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3) +# define SCxSR_RDxF_CLEAR(port) \ + ((((port)->type == PORT_SCI) ? SCI_RDxF_CLEAR : SCIF_RDxF_CLEAR) & 0xff) +# define SCxSR_ERROR_CLEAR(port) \ + ((((port)->type == PORT_SCI) ? SCI_ERROR_CLEAR : SCIF_ERROR_CLEAR) & 0xff) +# define SCxSR_TDxE_CLEAR(port) \ + ((((port)->type == PORT_SCI) ? SCI_TDxE_CLEAR : SCIF_TDxE_CLEAR) & 0xff) +# define SCxSR_BREAK_CLEAR(port) \ + ((((port)->type == PORT_SCI) ? SCI_BREAK_CLEAR : SCIF_BREAK_CLEAR) & 0xff) #endif |