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Diffstat (limited to 'c/src/lib/libcpu/sh/sh7045/sci/sci.c')
-rw-r--r--c/src/lib/libcpu/sh/sh7045/sci/sci.c116
1 files changed, 58 insertions, 58 deletions
diff --git a/c/src/lib/libcpu/sh/sh7045/sci/sci.c b/c/src/lib/libcpu/sh/sh7045/sci/sci.c
index f78f36179d..71241dfe4a 100644
--- a/c/src/lib/libcpu/sh/sh7045/sci/sci.c
+++ b/c/src/lib/libcpu/sh/sh7045/sci/sci.c
@@ -77,16 +77,16 @@
/* #define SH_SCI_DEF_COMM_1 B9600 | CS8 */
struct scidev_t {
- char * name ;
- uint32_t addr ;
- rtems_device_minor_number minor ;
- unsigned short opened ;
- tcflag_t cflags ;
+ char * name;
+ uint32_t addr;
+ rtems_device_minor_number minor;
+ unsigned short opened;
+ tcflag_t cflags;
} sci_device[SCI_MINOR_DEVICES] =
{
{ "/dev/sci0", SH_SCI_BASE_0, 0, 0, SH_SCI_DEF_COMM_0 },
{ "/dev/sci1", SH_SCI_BASE_1, 1, 0, SH_SCI_DEF_COMM_1 }
-} ;
+};
/* local data structures maintain hardware configuration */
#if UNUSED
@@ -97,20 +97,22 @@ static sci_setup_t sio_param[2];
extern int _sci_get_brparms(
tcflag_t cflag,
unsigned char *smr,
- unsigned char *brr );
+ unsigned char *brr
+);
/* Translate termios' tcflag_t into sci settings */
static int _sci_set_cflags(
- struct scidev_t *sci_dev,
- tcflag_t c_cflag )
+ struct scidev_t *sci_dev,
+ tcflag_t c_cflag
+)
{
- uint8_t smr ;
- uint8_t brr ;
+ uint8_t smr;
+ uint8_t brr;
if ( c_cflag & CBAUD )
{
if ( _sci_get_brparms( c_cflag, &smr, &brr ) != 0 )
- return -1 ;
+ return -1;
}
if ( c_cflag & CSIZE )
@@ -120,7 +122,7 @@ static int _sci_set_cflags(
else if ( c_cflag & CS7 )
smr |= SCI_SEVEN_BIT_DATA;
else
- return -1 ;
+ return -1;
}
if ( c_cflag & CSTOPB )
@@ -129,19 +131,19 @@ static int _sci_set_cflags(
smr &= ~SCI_STOP_BITS_2;
if ( c_cflag & PARENB )
- smr |= SCI_PARITY_ON ;
+ smr |= SCI_PARITY_ON;
else
- smr &= ~SCI_PARITY_ON ;
+ smr &= ~SCI_PARITY_ON;
if ( c_cflag & PARODD )
- smr |= SCI_ODD_PARITY ;
+ 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 ;
+ return 0;
}
/*
@@ -213,7 +215,7 @@ rtems_boolean rdSCI0(unsigned char *ch)
temp = read8(SCI_SSR0) & ~SCI_RDRF;
write8(temp, SCI_SSR0);
/* Check for transmission errors */
- if(temp & (SCI_ORER | SCI_FER | SCI_PER)){
+ if (temp & (SCI_ORER | SCI_FER | SCI_PER)) {
/* TODO: report to RTEMS transmission error */
/* clear error flags*/
@@ -237,7 +239,7 @@ rtems_boolean rdSCI1(unsigned char *ch)
temp= read8(SCI_SSR1) & ~SCI_RDRF;
write8(temp, SCI_SSR1);
/* Check for transmission errors */
- if(temp & (SCI_ORER | SCI_FER | SCI_PER)){
+ if (temp & (SCI_ORER | SCI_FER | SCI_PER)) {
/* TODO: report to RTEMS transmission error */
/* clear error flags*/
@@ -251,26 +253,24 @@ rtems_boolean rdSCI1(unsigned char *ch)
/* initial version pulls byte from selected port */
-char sh_sci_inbyte_polled(
- rtems_device_minor_number minor )
+char sh_sci_inbyte_polled( rtems_device_minor_number minor )
{
- char ch;
+ uint8_t ch = 0;
- if (minor == 0) /* blocks until char.ready */
- while (rdSCI0(&ch) != TRUE); /* SCI0 */
- else
- while (rdSCI1(&ch) != TRUE); /* SCI1 */
- return ch;
+ if (minor == 0) /* blocks until char.ready */
+ while (rdSCI0(&ch) != TRUE); /* SCI0 */
+ else
+ while (rdSCI1(&ch) != TRUE); /* SCI1 */
+ return ch;
} /* sh_sci_inbyte_polled */
/* Initial version calls polled input driver */
-char inbyte(
- rtems_device_minor_number minor )
+char inbyte( rtems_device_minor_number minor )
{
- char ch;
+ char ch;
- ch = sh_sci_inbyte_polled(minor);
- return ch;
+ ch = sh_sci_inbyte_polled(minor);
+ return ch;
} /* inbyte */
@@ -311,7 +311,7 @@ rtems_device_driver sh_sci_initialize(
status = rtems_io_lookup_name(
sci_device[i].name,
&driver);
- if( status != RTEMS_SUCCESSFUL )
+ if ( status != RTEMS_SUCCESSFUL )
{
/* OK. We assume it is not registered yet. */
status = rtems_io_register_name(
@@ -342,10 +342,10 @@ rtems_device_driver sh_sci_open(
uint8_t temp8;
uint16_t temp16;
- unsigned a ;
+ unsigned a;
/* check for valid minor number */
- if(( minor > ( SCI_MINOR_DEVICES -1 )) || ( minor < 0 ))
+ if (( minor > ( SCI_MINOR_DEVICES -1 )) || ( minor < 0 ))
{
return RTEMS_INVALID_NUMBER;
}
@@ -353,8 +353,8 @@ rtems_device_driver sh_sci_open(
/* device already opened */
if ( sci_device[minor].opened > 0 )
{
- sci_device[minor].opened++ ;
- return RTEMS_SUCCESSFUL ;
+ sci_device[minor].opened++;
+ return RTEMS_SUCCESSFUL;
}
/* set PFC registers to enable I/O pins */
@@ -378,7 +378,7 @@ rtems_device_driver sh_sci_open(
/* set SMR and BRR */
_sci_set_cflags( &sci_device[minor], sci_device[minor].cflags );
- for(a=0; a < 10000L; a++) { /* Delay */
+ for (a=0; a < 10000L; a++) { /* Delay */
asm volatile ("nop");
}
@@ -387,7 +387,7 @@ rtems_device_driver sh_sci_open(
/* clear error flags */
temp8 = read8(sci_device[minor].addr + SCI_SSR);
- while(temp8 & (SCI_RDRF | SCI_ORER | SCI_FER | SCI_PER)){
+ 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),
@@ -403,9 +403,9 @@ rtems_device_driver sh_sci_open(
/* add interrupt setup if required */
- sci_device[minor].opened++ ;
+ sci_device[minor].opened++;
- return RTEMS_SUCCESSFUL ;
+ return RTEMS_SUCCESSFUL;
}
/*
@@ -420,11 +420,11 @@ rtems_device_driver sh_sci_close(
{
/* FIXME: Incomplete */
if ( sci_device[minor].opened > 0 )
- sci_device[minor].opened-- ;
+ sci_device[minor].opened--;
else
- return RTEMS_INVALID_NUMBER ;
+ return RTEMS_INVALID_NUMBER;
- return RTEMS_SUCCESSFUL ;
+ return RTEMS_SUCCESSFUL;
}
/*
@@ -501,7 +501,7 @@ rtems_device_driver sh_sci_control(
)
{
/* Not yet supported */
- return RTEMS_SUCCESSFUL ;
+ return RTEMS_SUCCESSFUL;
}
/*
@@ -525,27 +525,27 @@ static int _sh_sci_last_close(int major, int minor, void *arg)
*/
static int _sh_sci_poll_read(int minor)
{
- int value = -1;
- char ch;
-
- if( minor == 0 ){
- if( rdSCI0( &ch ) )
- value = (int) ch;
- }else if( minor == 1 ){
- if( rdSCI1( &ch ) )
- value = (int) ch;
- }
- return value;
+ int value = -1;
+ uint8_t ch = 0;
+
+ if ( minor == 0 ) {
+ if ( rdSCI0( &ch ) )
+ value = (int) ch;
+ } else if ( minor == 1 ) {
+ if ( rdSCI1( &ch ) )
+ value = (int) ch;
+ }
+ return value;
}
/*
* Termios polled write
*/
-static int _sh_sci_poll_write(int minor, const char *buf, int len)
+static int _sh_sci_poll_write(int minor, const uint8_t *buf, int len)
{
int count;
- for(count = 0; count < len; count++)
+ for (count = 0; count < len; count++)
outbyte( minor, buf[count] );
return count;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 03:20:22 +0000