diff options
Diffstat (limited to 'cpu/mips/serial.c')
| -rw-r--r-- | cpu/mips/serial.c | 110 |
1 files changed, 55 insertions, 55 deletions
diff --git a/cpu/mips/serial.c b/cpu/mips/serial.c index b26f41d..585227a 100644 --- a/cpu/mips/serial.c +++ b/cpu/mips/serial.c @@ -23,7 +23,7 @@ #define TOUT_LOOP 100000 /* Set base address for second FPI interrupt control register bank */ -#define SFPI_INTCON_BASEADDR 0xBF0F0000 +#define SFPI_INTCON_BASEADDR 0xBF0F0000 /* Register offset from base address */ #define FBS_ISR 0x00000000 /* Interrupt status register */ @@ -75,11 +75,11 @@ int serial_init (void) /* we have to set PMU.EN13 bit to enable an ASC device*/ INCAASC_PMU_ENABLE(13); #endif - + /* and we have to set CLC register*/ CLEAR_BIT(pAsc->asc_clc, ASCCLC_DISS); SET_BITFIELD(pAsc->asc_clc, ASCCLC_RMCMASK, ASCCLC_RMCOFFSET, 0x0001); - + /* initialy we are in async mode */ pAsc->asc_con = ASCCON_M_8ASYNC; @@ -89,13 +89,13 @@ int serial_init (void) #ifdef ASC_FIFO_PRESENT /* TXFIFO's filling level */ SET_BITFIELD(pAsc->asc_txfcon, ASCTXFCON_TXFITLMASK, - ASCTXFCON_TXFITLOFF, INCAASC_TXFIFO_FL); + ASCTXFCON_TXFITLOFF, INCAASC_TXFIFO_FL); /* enable TXFIFO */ SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXFEN); /* RXFIFO's filling level */ - SET_BITFIELD(pAsc->asc_txfcon, ASCRXFCON_RXFITLMASK, - ASCRXFCON_RXFITLOFF, INCAASC_RXFIFO_FL); + SET_BITFIELD(pAsc->asc_txfcon, ASCRXFCON_RXFITLMASK, + ASCRXFCON_RXFITLOFF, INCAASC_RXFIFO_FL); /* enable RXFIFO */ SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXFEN); #endif @@ -123,7 +123,7 @@ int serial_init (void) /* set the options */ serial_setopt(); - + return 0; } @@ -141,25 +141,25 @@ void serial_setbrg (void) #ifndef INCAASC_USE_FDV fdv = 2; uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1; -#else +#else fdv = INCAASC_FDV_HIGH_BAUDRATE; uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1; #endif /* INCAASC_USE_FDV */ - + if ( (uiReloadValue < 0) || (uiReloadValue > 8191) ) { #ifndef INCAASC_USE_FDV - fdv = 3; - uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1; -#else - fdv = INCAASC_FDV_LOW_BAUDRATE; - uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1; + fdv = 3; + uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1; +#else + fdv = INCAASC_FDV_LOW_BAUDRATE; + uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1; #endif /* INCAASC_USE_FDV */ - - if ( (uiReloadValue < 0) || (uiReloadValue > 8191) ) - { - return; /* can't impossibly generate that baud rate */ - } + + if ( (uiReloadValue < 0) || (uiReloadValue > 8191) ) + { + return; /* can't impossibly generate that baud rate */ + } } /* Disable Baud Rate Generator; BG should only be written when R=0 */ @@ -174,9 +174,9 @@ void serial_setbrg (void) CLEAR_BIT(pAsc->asc_con, ASCCON_FDE); if ( fdv == 2 ) - CLEAR_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 0 */ + CLEAR_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 0 */ else - SET_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 1 */ + SET_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 1 */ #else /* INCAASC_USE_FDV */ @@ -217,42 +217,42 @@ static int serial_setopt (void) { /* 7-bit-data */ case ASCOPT_CS7: - con = ASCCON_M_7ASYNCPAR; /* 7-bit-data and parity bit */ - break; + con = ASCCON_M_7ASYNCPAR; /* 7-bit-data and parity bit */ + break; /* 8-bit-data */ case ASCOPT_CS8: - if ( ASC_OPTIONS & ASCOPT_PARENB ) - con = ASCCON_M_8ASYNCPAR; /* 8-bit-data and parity bit */ - else - con = ASCCON_M_8ASYNC; /* 8-bit-data no parity */ - break; - - /* + if ( ASC_OPTIONS & ASCOPT_PARENB ) + con = ASCCON_M_8ASYNCPAR; /* 8-bit-data and parity bit */ + else + con = ASCCON_M_8ASYNC; /* 8-bit-data no parity */ + break; + + /* * only 7 and 8-bit frames are supported - * if we don't use IOCTL extensions + * if we don't use IOCTL extensions */ default: - return -1; + return -1; } if ( ASC_OPTIONS & ASCOPT_STOPB ) - SET_BIT(con, ASCCON_STP); /* 2 stop bits */ + SET_BIT(con, ASCCON_STP); /* 2 stop bits */ else - CLEAR_BIT(con, ASCCON_STP); /* 1 stop bit */ + CLEAR_BIT(con, ASCCON_STP); /* 1 stop bit */ if ( ASC_OPTIONS & ASCOPT_PARENB ) - SET_BIT(con, ASCCON_PEN); /* enable parity checking */ + SET_BIT(con, ASCCON_PEN); /* enable parity checking */ else - CLEAR_BIT(con, ASCCON_PEN); /* disable parity checking */ - + CLEAR_BIT(con, ASCCON_PEN); /* disable parity checking */ + if ( ASC_OPTIONS & ASCOPT_PARODD ) - SET_BIT(con, ASCCON_ODD); /* odd parity */ + SET_BIT(con, ASCCON_ODD); /* odd parity */ else - CLEAR_BIT(con, ASCCON_ODD); /* even parity */ + CLEAR_BIT(con, ASCCON_ODD); /* even parity */ if ( ASC_OPTIONS & ASCOPT_CREAD ) - SET_BIT(pAsc->asc_whbcon, ASCWHBCON_SETREN); /* Receiver enable */ + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_SETREN); /* Receiver enable */ pAsc->asc_con |= con; @@ -293,14 +293,14 @@ void serial_putc (const char c) #ifndef ASC_FIFO_PRESENT *(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) = FBS_ISR_AB | - FBS_ISR_AT; + FBS_ISR_AT; #endif - + /* check for errors */ if ( pAsc->asc_con & ASCCON_OE ) { - SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE); - return; + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE); + return; } } @@ -321,7 +321,7 @@ int serial_getc (void) symbol_mask = ((ASC_OPTIONS & ASCOPT_CSIZE) == ASCOPT_CS7) ? (0x7f) : (0xff); - + c = (char)(pAsc->asc_rbuf & symbol_mask); #ifndef ASC_FIFO_PRESENT @@ -338,30 +338,30 @@ int serial_tstc (void) #ifdef ASC_FIFO_PRESENT if ( (pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 ) { - res = 0; + res = 0; } #else if (!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) & - FBS_ISR_AR)) - + FBS_ISR_AR)) + { - res = 0; + res = 0; } #endif else if ( pAsc->asc_con & ASCCON_FE ) { - SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRFE); - res = 0; + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRFE); + res = 0; } else if ( pAsc->asc_con & ASCCON_PE ) { - SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRPE); - res = 0; + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRPE); + res = 0; } else if ( pAsc->asc_con & ASCCON_OE ) { - SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE); - res = 0; + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE); + res = 0; } return res; |