diff options
Diffstat (limited to 'c/src/lib/libcpu/sh/sh7045/sci/sci.c')
| -rw-r--r-- | c/src/lib/libcpu/sh/sh7045/sci/sci.c | 62 |
1 files changed, 31 insertions, 31 deletions
diff --git a/c/src/lib/libcpu/sh/sh7045/sci/sci.c b/c/src/lib/libcpu/sh/sh7045/sci/sci.c index a3cbcc613d..f78f36179d 100644 --- a/c/src/lib/libcpu/sh/sh7045/sci/sci.c +++ b/c/src/lib/libcpu/sh/sh7045/sci/sci.c @@ -1,12 +1,12 @@ /* * /dev/sci[0|1] for Hitachi SH 704X * - * The SH doesn't have a designated console device. Therefore we "alias" - * another device as /dev/console and revector all calls to /dev/console + * The SH doesn't have a designated console device. Therefore we "alias" + * another device as /dev/console and revector all calls to /dev/console * to this device. * - * This approach is similar to installing a sym-link from one device to - * another device. If rtems once will support sym-links for devices files, + * This approach is similar to installing a sym-link from one device to + * another device. If rtems once will support sym-links for devices files, * this implementation could be dropped. * * Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de) @@ -16,7 +16,7 @@ * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * + * * * COPYRIGHT (c) 1998. * On-Line Applications Research Corporation (OAR). @@ -61,9 +61,9 @@ /* * NOTE: Some SH variants have 3 sci devices */ - + #define SCI_MINOR_DEVICES 2 - + /* * FIXME: sh7045 register names match Hitachi data book, * but conflict with RTEMS sh7032 usage. @@ -106,13 +106,13 @@ static int _sci_set_cflags( { uint8_t smr ; uint8_t brr ; - + if ( c_cflag & CBAUD ) { if ( _sci_get_brparms( c_cflag, &smr, &brr ) != 0 ) return -1 ; } - + if ( c_cflag & CSIZE ) { if ( c_cflag & CS8 ) @@ -137,10 +137,10 @@ static int _sci_set_cflags( smr |= SCI_ODD_PARITY ; else smr &= ~SCI_ODD_PARITY; - + write8( smr, sci_dev->addr + SCI_SMR ); write8( brr, sci_dev->addr + SCI_BRR ); - + return 0 ; } @@ -255,7 +255,7 @@ char sh_sci_inbyte_polled( rtems_device_minor_number minor ) { char ch; - + if (minor == 0) /* blocks until char.ready */ while (rdSCI0(&ch) != TRUE); /* SCI0 */ else @@ -296,8 +296,8 @@ rtems_device_driver sh_sci_initialize( rtems_device_driver status; rtems_device_minor_number i; rtems_driver_name_t driver; - - + + /* * register all possible devices. * the initialization of the hardware is done by sci_open @@ -341,22 +341,22 @@ rtems_device_driver sh_sci_open( { uint8_t temp8; uint16_t temp16; - + unsigned a ; - + /* check for valid minor number */ if(( minor > ( SCI_MINOR_DEVICES -1 )) || ( minor < 0 )) { return RTEMS_INVALID_NUMBER; } - + /* device already opened */ if ( sci_device[minor].opened > 0 ) { sci_device[minor].opened++ ; return RTEMS_SUCCESSFUL ; } - + /* set PFC registers to enable I/O pins */ if ((minor == 0)) { @@ -364,8 +364,8 @@ rtems_device_driver sh_sci_open( temp16 &= ~(PA2MD1 | PA2MD0); temp16 |= (PA_TXD0 | PA_RXD0); /* enable pins for Tx0, Rx0 */ write16(temp16, PFC_PACRL2); - - } else if (minor == 1) { + + } else if (minor == 1) { temp16 = read16(PFC_PACRL2); /* disable SCK1, DMA, IRQ */ temp16 &= ~(PA5MD1 | PA5MD0); temp16 |= (PA_TXD1 | PA_RXD1); /* enable pins for Tx1, Rx1 */ @@ -390,24 +390,24 @@ rtems_device_driver sh_sci_open( while(temp8 & (SCI_RDRF | SCI_ORER | SCI_FER | SCI_PER)){ temp8 = read8(sci_device[minor].addr + SCI_RDR); /* flush input */ temp8 = read8(sci_device[minor].addr + SCI_SSR); /* clear some flags */ - write8(temp8 & ~(SCI_RDRF | SCI_ORER | SCI_FER | SCI_PER), + write8(temp8 & ~(SCI_RDRF | SCI_ORER | SCI_FER | SCI_PER), sci_device[minor].addr + SCI_SSR); temp8 = read8(sci_device[minor].addr + SCI_SSR); /* check if everything is OK */ - } + } /* Clear RDRF flag */ write8(0x00, sci_device[minor].addr + SCI_TDR); /* force output */ /* Clear the TDRE bit */ temp8 = read8(sci_device[minor].addr + SCI_SSR) & ~SCI_TDRE; write8(temp8, sci_device[minor].addr + SCI_SSR); - + /* add interrupt setup if required */ - + sci_device[minor].opened++ ; return RTEMS_SUCCESSFUL ; } - + /* * Close entry point */ @@ -423,7 +423,7 @@ rtems_device_driver sh_sci_close( sci_device[minor].opened-- ; else return RTEMS_INVALID_NUMBER ; - + return RTEMS_SUCCESSFUL ; } @@ -441,7 +441,7 @@ rtems_device_driver sh_sci_read( char *buffer; int maximum; int count = 0; - + rw_args = (rtems_libio_rw_args_t *) arg; buffer = rw_args->buffer; @@ -460,7 +460,7 @@ rtems_device_driver sh_sci_read( } /* - * write bytes to the serial port. Stdout and stderr are the same. + * write bytes to the serial port. Stdout and stderr are the same. */ rtems_device_driver sh_sci_write( @@ -527,7 +527,7 @@ static int _sh_sci_poll_read(int minor) { int value = -1; char ch; - + if( minor == 0 ){ if( rdSCI0( &ch ) ) value = (int) ch; @@ -539,12 +539,12 @@ static int _sh_sci_poll_read(int minor) } /* - * Termios polled write + * Termios polled write */ static int _sh_sci_poll_write(int minor, const char *buf, int len) { int count; - + for(count = 0; count < len; count++) outbyte( minor, buf[count] ); return count; |