RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

bsps: Move console drivers to bsps

Browse Source 
This patch is a part of the BSP source reorganization.

Update #3285.
This commit is contained in:
Sebastian Huber
2018-04-19 06:28:01 +02:00
parent 58adad484e
commit d7d66d7d45
236 changed files with 204 additions and 204 deletions
Download Patch File Download Diff File Expand all files Collapse all files

83
bsps/sparc/erc32/console/debugputs.c Normal file
View File

@@ -0,0 +1,83 @@
/*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
/*
* console_outbyte_polled
*
* This routine transmits a character using polling.
*/
void console_outbyte_polled(
int port,
unsigned char ch
)
{
if ( port == 0 ) {
while ( (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEA) == 0 );
ERC32_MEC.UART_Channel_A = (unsigned int) ch;
return;
}
while ( (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEB) == 0 );
ERC32_MEC.UART_Channel_B = (unsigned int) ch;
}
/*
* console_inbyte_nonblocking
*
* This routine polls for a character.
*/
int console_inbyte_nonblocking( int port )
{
int UStat;
UStat = ERC32_MEC.UART_Status;
switch (port) {
case 0:
if (UStat & ERC32_MEC_UART_STATUS_ERRA) {
ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRA;
ERC32_MEC.Control = ERC32_MEC.Control;
}
if ((UStat & ERC32_MEC_UART_STATUS_DRA) == 0)
return -1;
return (int) ERC32_MEC.UART_Channel_A;
case 1:
if (UStat & ERC32_MEC_UART_STATUS_ERRB) {
ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRB;
ERC32_MEC.Control = ERC32_MEC.Control;
}
if ((UStat & ERC32_MEC_UART_STATUS_DRB) == 0)
return -1;
return (int) ERC32_MEC.UART_Channel_B;
default:
rtems_fatal_error_occurred( 'D' << 8 | (port & 0xffffff) );
}
return -1;
}
/*
* To support printk
*/
#include <rtems/bspIo.h>
static void BSP_output_char_f(char c) { console_outbyte_polled( 0, c ); }
BSP_output_char_function_type BSP_output_char = BSP_output_char_f;
BSP_polling_getchar_function_type BSP_poll_char = NULL;

337
bsps/sparc/erc32/console/erc32_console.c Normal file
View File

@@ -0,0 +1,337 @@
/**
* @file
*
* @brief Driver for serial ports on the ERC32.
*/
/*
* Copyright (c) 2010 Tiemen Schut <T.Schut@sron.nl>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <unistd.h>
#include <termios.h>
#include <stdlib.h>
#include <rtems.h>
#include <rtems/libio.h>
#include <rtems/console.h>
#include <rtems/termiostypes.h>
#include <libchip/serial.h>
#include <libchip/sersupp.h>
#include <bsp.h>
#include <bspopts.h>
#define CONSOLE_BUF_SIZE (16)
#define CONSOLE_UART_A_TRAP ERC32_TRAP_TYPE(ERC32_INTERRUPT_UART_A_RX_TX)
#define CONSOLE_UART_B_TRAP ERC32_TRAP_TYPE(ERC32_INTERRUPT_UART_B_RX_TX)
static uint8_t erc32_console_get_register(uintptr_t addr, uint8_t i)
{
volatile uint32_t *reg = (volatile uint32_t *)addr;
return (uint8_t) reg [i];
}
static void erc32_console_set_register(uintptr_t addr, uint8_t i, uint8_t val)
{
volatile uint32_t *reg = (volatile uint32_t *)addr;
reg [i] = val;
}
static int erc32_console_first_open(int major, int minor, void *arg);
#if (CONSOLE_USE_INTERRUPTS)
static ssize_t erc32_console_write_support_int(
int minor, const char *buf, size_t len);
#else
int console_inbyte_nonblocking( int port );
static ssize_t erc32_console_write_support_polled(
int minor, const char *buf, size_t len);
#endif
static void erc32_console_initialize(int minor);
#if (CONSOLE_USE_INTERRUPTS)
const console_fns erc32_fns = {
libchip_serial_default_probe, /* deviceProbe */
erc32_console_first_open, /* deviceFirstOpen */
NULL, /* deviceLastClose */
NULL, /* deviceRead */
erc32_console_write_support_int, /* deviceWrite */
erc32_console_initialize, /* deviceInitialize */
NULL, /* deviceWritePolled */
NULL, /* deviceSetAttributes */
TERMIOS_IRQ_DRIVEN /* deviceOutputUsesInterrupts */
};
#else
const console_fns erc32_fns = {
libchip_serial_default_probe, /* deviceProbe */
erc32_console_first_open, /* deviceFirstOpen */
NULL, /* deviceLastClose */
console_inbyte_nonblocking, /* deviceRead */
erc32_console_write_support_polled, /* deviceWrite */
erc32_console_initialize, /* deviceInitialize */
NULL, /* deviceWritePolled */
NULL, /* deviceSetAttributes */
TERMIOS_POLLED /* deviceOutputUsesInterrupts */
};
#endif
console_tbl Console_Configuration_Ports [] = {
{
.sDeviceName = "/dev/console_a",
.deviceType = SERIAL_CUSTOM,
.pDeviceFns = &erc32_fns,
.deviceProbe = NULL,
.pDeviceFlow = NULL,
.ulMargin = 16,
.ulHysteresis = 8,
.pDeviceParams = (void *) -1, /* could be baud rate */
.ulCtrlPort1 = 0,
.ulCtrlPort2 = 0,
.ulDataPort = 0,
.getRegister = erc32_console_get_register,
.setRegister = erc32_console_set_register,
.getData = NULL,
.setData = NULL,
.ulClock = 16,
.ulIntVector = ERC32_INTERRUPT_UART_A_RX_TX
},
{
.sDeviceName = "/dev/console_b",
.deviceType = SERIAL_CUSTOM,
.pDeviceFns = &erc32_fns,
.deviceProbe = NULL,
.pDeviceFlow = NULL,
.ulMargin = 16,
.ulHysteresis = 8,
.pDeviceParams = (void *) -1, /* could be baud rate */
.ulCtrlPort1 = 0,
.ulCtrlPort2 = 0,
.ulDataPort = 0,
.getRegister = erc32_console_get_register,
.setRegister = erc32_console_set_register,
.getData = NULL,
.setData = NULL,
.ulClock = 16,
.ulIntVector = ERC32_INTERRUPT_UART_B_RX_TX
},
};
/* always exactly two uarts for erc32 */
#define ERC32_UART_COUNT (2)
unsigned long Console_Configuration_Count = ERC32_UART_COUNT;
static int erc32_console_first_open(int major, int minor, void *arg)
{
/* Check minor number */
if (minor < 0 || minor > 1) {
return -1;
}
rtems_libio_open_close_args_t *oca = arg;
struct rtems_termios_tty *tty = oca->iop->data1;
console_tbl *ct = Console_Port_Tbl [minor];
console_data *cd = &Console_Port_Data [minor];
cd->termios_data = tty;
rtems_termios_set_initial_baud(tty, (int32_t)ct->pDeviceParams);
return 0;
}
#if (CONSOLE_USE_INTERRUPTS)
static ssize_t erc32_console_write_support_int(
int minor, const char *buf, size_t len)
{
if (len > 0) {
console_data *cd = &Console_Port_Data[minor];
int k = 0;
if (minor == 0) { /* uart a */
for (k = 0;
k < len && (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEA);
k ++) {
ERC32_MEC.UART_Channel_A = (unsigned char)buf[k];
}
ERC32_Force_interrupt(ERC32_INTERRUPT_UART_A_RX_TX);
} else { /* uart b */
for (k = 0;
k < len && (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEB);
k ++) {
ERC32_MEC.UART_Channel_B = (unsigned char)buf[k];
}
ERC32_Force_interrupt(ERC32_INTERRUPT_UART_B_RX_TX);
}
cd->pDeviceContext = (void *)k;
cd->bActive = true;
}
return 0;
}
static void erc32_console_isr_error(
rtems_vector_number vector
)
{
int UStat;
UStat = ERC32_MEC.UART_Status;
if (UStat & ERC32_MEC_UART_STATUS_ERRA) {
ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRA;
ERC32_MEC.Control = ERC32_MEC.Control;
}
if (UStat & ERC32_MEC_UART_STATUS_ERRB) {
ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRB;
ERC32_MEC.Control = ERC32_MEC.Control;
}
ERC32_Clear_interrupt( ERC32_INTERRUPT_UART_ERROR );
}
static void erc32_console_isr_a(
rtems_vector_number vector
)
{
console_data *cd = &Console_Port_Data[0];
/* check for error */
if (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_ERRA) {
ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRA;
ERC32_MEC.Control = ERC32_MEC.Control;
}
do {
int chars_to_dequeue = (int)cd->pDeviceContext;
int rv = 0;
int i = 0;
char buf[CONSOLE_BUF_SIZE];
/* enqueue received chars */
while (i < CONSOLE_BUF_SIZE) {
if (!(ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_DRA))
break;
buf[i] = ERC32_MEC.UART_Channel_A;
++i;
}
if ( i )
rtems_termios_enqueue_raw_characters(cd->termios_data, buf, i);
/* dequeue transmitted chars */
if (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEA) {
rv = rtems_termios_dequeue_characters(
cd->termios_data, chars_to_dequeue);
if ( !rv ) {
cd->pDeviceContext = 0;
cd->bActive = false;
}
ERC32_Clear_interrupt (ERC32_INTERRUPT_UART_A_RX_TX);
}
} while (ERC32_Is_interrupt_pending (ERC32_INTERRUPT_UART_A_RX_TX));
}
static void erc32_console_isr_b(
rtems_vector_number vector
)
{
console_data *cd = &Console_Port_Data[1];
/* check for error */
if (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_ERRB) {
ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRB;
ERC32_MEC.Control = ERC32_MEC.Control;
}
do {
int chars_to_dequeue = (int)cd->pDeviceContext;
int rv = 0;
int i = 0;
char buf[CONSOLE_BUF_SIZE];
/* enqueue received chars */
while (i < CONSOLE_BUF_SIZE) {
if (!(ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_DRB))
break;
buf[i] = ERC32_MEC.UART_Channel_B;
++i;
}
if ( i )
rtems_termios_enqueue_raw_characters(cd->termios_data, buf, i);
/* dequeue transmitted chars */
if (ERC32_MEC.UART_Status & ERC32_MEC_UART_STATUS_THEB) {
rv = rtems_termios_dequeue_characters(
cd->termios_data, chars_to_dequeue);
if ( !rv ) {
cd->pDeviceContext = 0;
cd->bActive = false;
}
ERC32_Clear_interrupt (ERC32_INTERRUPT_UART_B_RX_TX);
}
} while (ERC32_Is_interrupt_pending (ERC32_INTERRUPT_UART_B_RX_TX));
}
#else
extern void console_outbyte_polled( int port, unsigned char ch );
static ssize_t erc32_console_write_support_polled(
int minor,
const char *buf,
size_t len
)
{
int nwrite = 0;
while (nwrite < len) {
console_outbyte_polled( minor, *buf++ );
nwrite++;
}
return nwrite;
}
#endif
/*
* Console Device Driver Entry Points
*
*/
static void erc32_console_initialize(
int minor
)
{
console_data *cd = &Console_Port_Data [minor];
cd->bActive = false;
cd->pDeviceContext = 0;
/*
* Initialize the Termios infrastructure. If Termios has already
* been initialized by another device driver, then this call will
* have no effect.
*/
rtems_termios_initialize();
/*
* Initialize Hardware
*/
#if (CONSOLE_USE_INTERRUPTS)
set_vector(erc32_console_isr_a, CONSOLE_UART_A_TRAP, 1);
set_vector(erc32_console_isr_b, CONSOLE_UART_B_TRAP, 1);
set_vector(erc32_console_isr_error, CONSOLE_UART_ERROR_TRAP, 1);
#endif
/* Clear any previous error flags */
ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRA;
ERC32_MEC.UART_Status = ERC32_MEC_UART_STATUS_CLRB;
}

437
bsps/sparc/leon2/console/console.c Normal file
View File

@@ -0,0 +1,437 @@
/**
* @file
* @ingroup sparc_leon2
* @brief TTY driver driver for the serial ports on the LEON console
*
* This file contains the TTY driver for the serial ports on the LEON.
*/
/*
* COPYRIGHT (c) 1989-2014.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <stdlib.h>
#include <assert.h>
#include <rtems/console.h>
#include <rtems/libio.h>
#include <rtems/bspIo.h>
#include <bsp.h>
/*
* console_outbyte_polled
*
* This routine transmits a character using polling.
*/
void console_outbyte_polled(
int port,
unsigned char ch
);
/* body is in debugputs.c */
/*
* console_inbyte_nonblocking
*
* This routine polls for a character.
*/
int console_inbyte_nonblocking( int port );
/* body is in debugputs.c */
/*
* Interrupt driven console IO
*/
#if (CONSOLE_USE_INTERRUPTS)
/*
* Buffers between task and ISRs
*/
#include <rtems/ringbuf.h>
Ring_buffer_t TX_Buffer[ 2 ];
bool Is_TX_active[ 2 ];
void *console_termios_data[ 2 ];
/*
* console_isr_a
*
* This routine is the console interrupt handler for Channel 1.
*
* Input parameters:
* vector - vector number
*
* Output parameters: NONE
*
* Return values: NONE
*/
rtems_isr console_isr_a(
rtems_vector_number vector
)
{
char ch;
int UStat;
if ( (UStat = LEON_REG.UART_Status_1) & LEON_REG_UART_STATUS_DR ) {
if (UStat & LEON_REG_UART_STATUS_ERR) {
LEON_REG.UART_Status_1 = LEON_REG_UART_STATUS_CLR;
}
ch = LEON_REG.UART_Channel_1;
rtems_termios_enqueue_raw_characters( console_termios_data[ 0 ], &ch, 1 );
}
if ( LEON_REG.UART_Status_1 & LEON_REG_UART_STATUS_THE ) {
if ( !Ring_buffer_Is_empty( &TX_Buffer[ 0 ] ) ) {
Ring_buffer_Remove_character( &TX_Buffer[ 0 ], ch );
LEON_REG.UART_Channel_1 = (uint32_t) ch;
} else
Is_TX_active[ 0 ] = false;
}
LEON_Clear_interrupt( LEON_INTERRUPT_UART_1_RX_TX );
}
/*
* console_isr_b
*
* This routine is the console interrupt handler for Channel 2.
*
* Input parameters:
* vector - vector number
*
* Output parameters: NONE
*
* Return values: NONE
*/
rtems_isr console_isr_b(
rtems_vector_number vector
)
{
char ch;
int UStat;
if ( (UStat = LEON_REG.UART_Status_2) & LEON_REG_UART_STATUS_DR ) {
if (UStat & LEON_REG_UART_STATUS_ERR) {
LEON_REG.UART_Status_2 = LEON_REG_UART_STATUS_CLR;
}
ch = LEON_REG.UART_Channel_2;
rtems_termios_enqueue_raw_characters( console_termios_data[ 1 ], &ch, 1 );
}
if ( LEON_REG.UART_Status_2 & LEON_REG_UART_STATUS_THE ) {
if ( !Ring_buffer_Is_empty( &TX_Buffer[ 1 ] ) ) {
Ring_buffer_Remove_character( &TX_Buffer[ 1 ], ch );
LEON_REG.UART_Channel_2 = (uint32_t) ch;
} else
Is_TX_active[ 1 ] = false;
}
LEON_Clear_interrupt( LEON_INTERRUPT_UART_2_RX_TX );
}
/*
* console_exit
*
* This routine allows the console to exit by masking its associated interrupt
* vectors.
*
* Input parameters: NONE
*
* Output parameters: NONE
*
* Return values: NONE
*/
void console_exit()
{
uint32_t port;
uint32_t ch;
/*
* Although the interrupts for the UART are unmasked, the PIL is set to
* disable all external interrupts. So we might as well do this first.
*/
LEON_Mask_interrupt( LEON_INTERRUPT_UART_1_RX_TX );
LEON_Mask_interrupt( LEON_INTERRUPT_UART_2_RX_TX );
for ( port=0 ; port <= 1 ; port++ ) {
while ( !Ring_buffer_Is_empty( &TX_Buffer[ port ] ) ) {
Ring_buffer_Remove_character( &TX_Buffer[ port ], ch );
console_outbyte_polled( port, ch );
}
}
/*
* Now wait for all the data to actually get out ... the send register
* should be empty.
*/
while ( (LEON_REG.UART_Status_1 & LEON_REG_UART_STATUS_THE) !=
LEON_REG_UART_STATUS_THE );
while ( (LEON_REG.UART_Status_2 & LEON_REG_UART_STATUS_THE) !=
LEON_REG_UART_STATUS_THE );
LEON_REG.UART_Control_1 = 0;
LEON_REG.UART_Control_2 = 0;
LEON_REG.UART_Status_1 = 0;
LEON_REG.UART_Status_2 = 0;
}
#define CONSOLE_UART_1_TRAP LEON_TRAP_TYPE( LEON_INTERRUPT_UART_1_RX_TX )
#define CONSOLE_UART_2_TRAP LEON_TRAP_TYPE( LEON_INTERRUPT_UART_2_RX_TX )
/*
* console_initialize_interrupts
*
* This routine initializes the console's receive and transmit
* ring buffers and loads the appropriate vectors to handle the interrupts.
*
* Input parameters: NONE
*
* Output parameters: NONE
*
* Return values: NONE
*/
#ifdef RDB_BREAK_IN
extern uint32_t trap_table[];
#endif
void console_initialize_interrupts( void )
{
Ring_buffer_Initialize( &TX_Buffer[ 0 ] );
Ring_buffer_Initialize( &TX_Buffer[ 1 ] );
Is_TX_active[ 0 ] = false;
Is_TX_active[ 1 ] = false;
atexit( console_exit );
LEON_REG.UART_Control_1 |= LEON_REG_UART_CTRL_RI | LEON_REG_UART_CTRL_TI;
LEON_REG.UART_Control_2 |= LEON_REG_UART_CTRL_RI | LEON_REG_UART_CTRL_TI;
set_vector( console_isr_a, CONSOLE_UART_1_TRAP, 1 );
#ifdef RDB_BREAK_IN
if (trap_table[0x150/4] == 0x91d02000)
#endif
set_vector( console_isr_b, CONSOLE_UART_2_TRAP, 1 );
}
/*
* console_outbyte_interrupt
*
* This routine transmits a character out.
*
* Input parameters:
* port - port to transmit character to
* ch - character to be transmitted
*
* Output parameters: NONE
*
* Return values: NONE
*/
void console_outbyte_interrupt(
int port,
char ch
)
{
/*
* If this is the first character then we need to prime the pump
*/
if ( Is_TX_active[ port ] == false ) {
Is_TX_active[ port ] = true;
console_outbyte_polled( port, ch );
return;
}
while ( Ring_buffer_Is_full( &TX_Buffer[ port ] ) );
Ring_buffer_Add_character( &TX_Buffer[ port ], ch );
}
#endif /* CONSOLE_USE_INTERRUPTS */
/*
* Console Termios Support Entry Points
*
*/
static ssize_t console_write_support (int minor, const char *buf, size_t len)
{
int nwrite = 0;
while (nwrite < len) {
#if (CONSOLE_USE_INTERRUPTS)
console_outbyte_interrupt( minor, *buf++ );
#else
console_outbyte_polled( minor, *buf++ );
#endif
nwrite++;
}
return nwrite;
}
/*
* Console Device Driver Entry Points
*
*/
rtems_device_driver console_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_status_code status;
rtems_termios_initialize();
/*
* Register Device Names
*/
status = rtems_io_register_name( "/dev/console", major, 0 );
if (status != RTEMS_SUCCESSFUL)
rtems_fatal_error_occurred(status);
status = rtems_io_register_name( "/dev/console_b", major, 1 );
if (status != RTEMS_SUCCESSFUL)
rtems_fatal_error_occurred(status);
/*
* Initialize Hardware
*/
LEON_REG.UART_Control_1 |= LEON_REG_UART_CTRL_RE | LEON_REG_UART_CTRL_TE;
LEON_REG.UART_Control_2 |= LEON_REG_UART_CTRL_RE | LEON_REG_UART_CTRL_TE |
LEON_REG_UART_CTRL_RI; /* rx irq default enable for remote debugger */
LEON_REG.UART_Status_1 = 0;
LEON_REG.UART_Status_2 = 0;
#if (CONSOLE_USE_INTERRUPTS)
console_initialize_interrupts();
#endif
return RTEMS_SUCCESSFUL;
}
rtems_device_driver console_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
rtems_status_code sc;
#if (CONSOLE_USE_INTERRUPTS)
rtems_libio_open_close_args_t *args = arg;
static const rtems_termios_callbacks intrCallbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
NULL, /* pollRead */
console_write_support, /* write */
NULL, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
0 /* outputUsesInterrupts */
};
#else
static const rtems_termios_callbacks pollCallbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
console_inbyte_nonblocking, /* pollRead */
console_write_support, /* write */
NULL, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
0 /* outputUsesInterrupts */
};
#endif
assert( minor <= 1 );
if ( minor > 2 )
return RTEMS_INVALID_NUMBER;
#if (CONSOLE_USE_INTERRUPTS)
sc = rtems_termios_open (major, minor, arg, &intrCallbacks);
console_termios_data[ minor ] = args->iop->data1;
#else
sc = rtems_termios_open (major, minor, arg, &pollCallbacks);
#endif
(void) sc; /* avoid set but not used warning */
return RTEMS_SUCCESSFUL;
}
rtems_device_driver console_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_close (arg);
}
rtems_device_driver console_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_read (arg);
}
rtems_device_driver console_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_write (arg);
}
rtems_device_driver console_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_ioctl (arg);
}
/* putchar/getchar for printk */
static void bsp_out_char (char c)
{
console_outbyte_polled(0, c);
}
BSP_output_char_function_type BSP_output_char = bsp_out_char;
static int bsp_in_char(void)
{
int tmp;
while ((tmp = console_inbyte_nonblocking(0)) < 0);
return tmp;
}
BSP_polling_getchar_function_type BSP_poll_char = bsp_in_char;

87
bsps/sparc/leon2/console/debugputs.c Normal file
View File

@@ -0,0 +1,87 @@
/**
* @file
* @ingroup sparc_leon2
* @brief TTY driver for the serial ports on the LEON
*/
/*
* This file contains the TTY driver for the serial ports on the LEON.
*
* This driver uses the termios pseudo driver.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>
/*
* Method is shared with console.c
*/
void console_outbyte_polled( int port, unsigned char ch );
int console_inbyte_nonblocking( int port );
/*
* console_outbyte_polled
*
* This routine transmits a character using polling.
*/
void console_outbyte_polled(
int port,
unsigned char ch
)
{
if ( port == 0 ) {
while ( (LEON_REG.UART_Status_1 & LEON_REG_UART_STATUS_THE) == 0 );
LEON_REG.UART_Channel_1 = (unsigned int) ch;
return;
}
while ( (LEON_REG.UART_Status_2 & LEON_REG_UART_STATUS_THE) == 0 );
LEON_REG.UART_Channel_2 = (unsigned int) ch;
}
/*
* console_inbyte_nonblocking
*
* This routine polls for a character.
*/
int console_inbyte_nonblocking( int port )
{
switch (port) {
case 0:
if (LEON_REG.UART_Status_1 & LEON_REG_UART_STATUS_ERR) {
LEON_REG.UART_Status_1 = ~LEON_REG_UART_STATUS_ERR;
}
if ((LEON_REG.UART_Status_1 & LEON_REG_UART_STATUS_DR) == 0)
return -1;
return (int) LEON_REG.UART_Channel_1;
return 1;
case 1:
if (LEON_REG.UART_Status_2 & LEON_REG_UART_STATUS_ERR) {
LEON_REG.UART_Status_2 = ~LEON_REG_UART_STATUS_ERR;
}
if ((LEON_REG.UART_Status_2 & LEON_REG_UART_STATUS_DR) == 0)
return -1;
return (int) LEON_REG.UART_Channel_2;
default:
assert( 0 );
}
return -1;
}

160
bsps/sparc/leon3/console/console.c Normal file
View File

@@ -0,0 +1,160 @@
/*
* This file contains the TTY driver for the serial ports on the LEON.
*
* This driver uses the termios pseudo driver.
*
* COPYRIGHT (c) 1989-1998.
* On-Line Applications Research Corporation (OAR).
*
* Modified for LEON3 BSP.
* COPYRIGHT (c) 2004.
* Gaisler Research.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
/* Define CONSOLE_USE_INTERRUPTS to enable APBUART interrupt handling instead
* of polling mode.
*
* Note that it is not possible to use the interrupt mode of the driver
* together with the "old" APBUART and -u to GRMON. However the new
* APBUART core (from GRLIB 1.0.17-b2710) has the GRMON debug bit and can
* handle interrupts.
*
* NOTE: This can be defined in the make/custom/leon3.cfg file.
*/
#include <bsp.h>
#include <bsp/fatal.h>
#include <bsp/apbuart_termios.h>
#include <rtems/console.h>
#include <string.h>
/* The LEON3 BSP UART driver can rely on the Driver Manager if the
* DrvMgr is initialized during startup. Otherwise the classic driver
* must be used.
*
* The DrvMgr APBUART driver is located in the shared/uart directory
*/
#ifndef RTEMS_DRVMGR_STARTUP
int syscon_uart_index __attribute__((weak)) = 0;
/* body is in debugputs.c */
static struct apbuart_context apbuarts[BSP_NUMBER_OF_TERMIOS_PORTS];
static int uarts = 0;
static rtems_termios_device_context *leon3_console_get_context(int index)
{
struct apbuart_context *uart = &apbuarts[index];
rtems_termios_device_context_initialize(&uart->base, "APBUART");
return &uart->base;
}
/* AMBA PP find routine. Extract AMBA PnP information into data structure. */
static int find_matching_apbuart(struct ambapp_dev *dev, int index, void *arg)
{
struct ambapp_apb_info *apb = (struct ambapp_apb_info *)dev->devinfo;
/* Extract needed information of one APBUART */
apbuarts[uarts].regs = (struct apbuart_regs *)apb->start;
apbuarts[uarts].irq = apb->irq;
/* Get APBUART core frequency, it is assumed that it is the same
* as Bus frequency where the UART is situated
*/
apbuarts[uarts].freq_hz = ambapp_freq_get(&ambapp_plb, dev);
uarts++;
if (uarts >= BSP_NUMBER_OF_TERMIOS_PORTS)
return 1; /* Satisfied number of UARTs, stop search */
else
return 0; /* Continue searching for more UARTs */
}
/* Find all UARTs */
static void leon3_console_scan_uarts(void)
{
memset(apbuarts, 0, sizeof(apbuarts));
/* Find APBUART cores */
ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_APB_SLVS), VENDOR_GAISLER,
GAISLER_APBUART, find_matching_apbuart, NULL);
}
rtems_device_driver console_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
const rtems_termios_device_handler *handler =
#if CONSOLE_USE_INTERRUPTS
&apbuart_handler_interrupt;
#else
&apbuart_handler_polled;
#endif
rtems_status_code status;
int i;
char console_name[16];
rtems_termios_initialize();
/* Find UARTs */
leon3_console_scan_uarts();
/* Update syscon_uart_index to index used as /dev/console
* Let user select System console by setting syscon_uart_index. If the
* BSP is to provide the default UART (syscon_uart_index==0):
* non-MP: APBUART[0] is system console
* MP: LEON CPU index select UART
*/
if (syscon_uart_index == 0) {
#if defined(RTEMS_MULTIPROCESSING)
syscon_uart_index = LEON3_Cpu_Index;
#else
syscon_uart_index = 0;
#endif
} else {
syscon_uart_index = syscon_uart_index - 1; /* User selected sys-console */
}
/* Register Device Names
*
* 0 /dev/console - APBUART[USER-SELECTED, DEFAULT=APBUART[0]]
* 1 /dev/console_a - APBUART[0] (by default not present because is console)
* 2 /dev/console_b - APBUART[1]
* ...
*
* On a MP system one should not open UARTs that other OS instances use.
*/
if (syscon_uart_index < uarts) {
status = rtems_termios_device_install(
CONSOLE_DEVICE_NAME,
handler,
NULL,
leon3_console_get_context(syscon_uart_index)
);
if (status != RTEMS_SUCCESSFUL)
bsp_fatal(LEON3_FATAL_CONSOLE_REGISTER_DEV);
}
strcpy(console_name,"/dev/console_a");
for (i = 0; i < uarts; i++) {
if (i == syscon_uart_index)
continue; /* skip UART that is registered as /dev/console */
console_name[13] = 'a' + i;
rtems_termios_device_install(
console_name,
handler,
NULL,
leon3_console_get_context(i)
);
}
return RTEMS_SUCCESSFUL;
}
#endif

119
bsps/sparc/leon3/console/printk_support.c Normal file
View File

@@ -0,0 +1,119 @@
/*
* This file contains the TTY driver for the serial ports on the LEON.
*
* This driver uses the termios pseudo driver.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* Modified for LEON3 BSP.
* COPYRIGHT (c) 2011.
* Aeroflex Gaisler.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <bsp.h>
#include <leon.h>
#include <rtems/libio.h>
#include <rtems/sysinit.h>
#include <stdlib.h>
#include <assert.h>
#include <stdio.h>
#include <bsp/apbuart.h>
#include <bsp/apbuart_termios.h>
int leon3_debug_uart_index __attribute__((weak)) = 0;
struct apbuart_regs *leon3_debug_uart = NULL;
/* Before UART driver has registered (or when no UART is available), calls to
* printk that gets to bsp_out_char() will be filling data into the
* pre_printk_dbgbuf[] buffer, hopefully the buffer can help debugging the
* early BSP boot.. At least the last printk() will be caught.
*/
static char pre_printk_dbgbuf[32] = {0};
static int pre_printk_pos = 0;
/* Initialize the BSP system debug console layer. It will scan AMBA Plu&Play
* for a debug APBUART and enable RX/TX for that UART.
*/
static void bsp_debug_uart_init(void)
{
int i;
struct ambapp_dev *adev;
struct ambapp_apb_info *apb;
/* Update leon3_debug_uart_index to index used as debug console. Let user
* select Debug console by setting leon3_debug_uart_index. If the BSP is to
* provide the default UART (leon3_debug_uart_index==0):
* non-MP: APBUART[0] is debug console
* MP: LEON CPU index select UART
*/
if (leon3_debug_uart_index == 0) {
#if defined(RTEMS_MULTIPROCESSING)
leon3_debug_uart_index = LEON3_Cpu_Index;
#else
leon3_debug_uart_index = 0;
#endif
} else {
leon3_debug_uart_index--; /* User selected dbg-console */
}
/* Find APBUART core for System Debug Console */
i = leon3_debug_uart_index;
adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_APB_SLVS),
VENDOR_GAISLER, GAISLER_APBUART,
ambapp_find_by_idx, (void *)&i);
if (adev) {
/* Found a matching debug console, initialize debug uart if present
* for printk
*/
apb = (struct ambapp_apb_info *)adev->devinfo;
leon3_debug_uart = (struct apbuart_regs *)apb->start;
leon3_debug_uart->ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
leon3_debug_uart->status = 0;
}
}
RTEMS_SYSINIT_ITEM(
bsp_debug_uart_init,
RTEMS_SYSINIT_BSP_START,
RTEMS_SYSINIT_ORDER_FOURTH
);
/* putchar/getchar for printk */
static void bsp_out_char(char c)
{
if (leon3_debug_uart == NULL) {
/* Local debug buffer when UART driver has not registered */
pre_printk_dbgbuf[pre_printk_pos++] = c;
pre_printk_pos = pre_printk_pos & (sizeof(pre_printk_dbgbuf)-1);
return;
}
apbuart_outbyte_polled(leon3_debug_uart, c, 1, 1);
}
/*
* To support printk
*/
#include <rtems/bspIo.h>
BSP_output_char_function_type BSP_output_char = bsp_out_char;
static int bsp_in_char(void)
{
int tmp;
if (leon3_debug_uart == NULL)
return EOF;
while ((tmp = apbuart_inbyte_nonblocking(leon3_debug_uart)) < 0)
;
return tmp;
}
BSP_polling_getchar_function_type BSP_poll_char = bsp_in_char;