diff options
Diffstat (limited to 'c/src/lib/libbsp/mips/genmongoosev/console/mg5uart.c')
| -rw-r--r-- | c/src/lib/libbsp/mips/genmongoosev/console/mg5uart.c | 881 |
1 files changed, 0 insertions, 881 deletions
diff --git a/c/src/lib/libbsp/mips/genmongoosev/console/mg5uart.c b/c/src/lib/libbsp/mips/genmongoosev/console/mg5uart.c deleted file mode 100644 index af463d95da..0000000000 --- a/c/src/lib/libbsp/mips/genmongoosev/console/mg5uart.c +++ /dev/null @@ -1,881 +0,0 @@ -/** - * @file - * - * This file contains the termios TTY driver for the UART found - * on the Synova Mongoose-V. - */ - -/* - * COPYRIGHT (c) 1989-2012. - * 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 <rtems.h> -#include <rtems/libio.h> -#include <rtems/score/sysstate.h> -#include <stdlib.h> - -#include <libchip/serial.h> -#include <libchip/sersupp.h> -#include <bsp/mg5uart.h> -#include <bsp/mongoose-v.h> - -#include <bsp/irq.h> -#include <bsp.h> - -/* - * Indices of registers - */ - -/* - * Per chip context control - */ - -typedef struct _mg5uart_context -{ - int mate; -} mg5uart_context; - -/* - * Define MG5UART_STATIC to nothing while debugging so the entry points - * will show up in the symbol table. - */ -/* #define MG5UART_STATIC */ -#define MG5UART_STATIC static - -#define MG5UART_SETREG( _base, _register, _value ) \ - MONGOOSEV_WRITE_REGISTER( _base, _register, _value ) - -#define MG5UART_GETREG( _base, _register ) \ - MONGOOSEV_READ_REGISTER( _base, _register ) - -/* - * Console Device Driver Support Functions - */ - -MG5UART_STATIC int mg5uart_baud_rate( - int minor, - uint32_t baud, - uint32_t *code -); - -MG5UART_STATIC void mg5uart_enable_interrupts( - int minor, - int mask -); - -/* - * mg5uart_isr_XXX - * - * This is the single interrupt entry point which parcels interrupts - * out to the handlers for specific sources and makes sure that the - * shared handler gets the right arguments. - * - * NOTE: Yes .. this is ugly but it provides 5 interrupt source - * wrappers which are nearly functionally identical. - */ -extern void mips_default_isr(int vector); - -#define __ISR(_TYPE, _OFFSET) \ - MG5UART_STATIC void mg5uart_process_isr_ ## _TYPE ( \ - int minor \ - ); \ - \ - MG5UART_STATIC rtems_isr mg5uart_isr_ ## _TYPE ( \ - void *arg \ - ) \ - { \ - rtems_vector_number vector = (rtems_vector_number) arg; \ - int minor; \ - \ - for(minor=0 ; minor<Console_Port_Count ; minor++) { \ - if( Console_Port_Tbl[minor]->deviceType == SERIAL_MG5UART && \ - vector == Console_Port_Tbl[minor]->ulIntVector + _OFFSET ) { \ - mg5uart_process_isr_ ## _TYPE (minor); \ - return; \ - } \ - } \ - mips_default_isr( vector ); \ - } - -__ISR(rx_frame_error, MG5UART_IRQ_RX_FRAME_ERROR) -__ISR(rx_overrun_error, MG5UART_IRQ_RX_OVERRUN_ERROR) -__ISR(tx_empty, MG5UART_IRQ_TX_EMPTY) -__ISR(tx_ready, MG5UART_IRQ_TX_READY) -__ISR(rx_ready, MG5UART_IRQ_RX_READY) - -/* - * mg5uart_set_attributes - * - * This function sets the UART channel to reflect the requested termios - * port settings. - */ -MG5UART_STATIC int mg5uart_set_attributes( - int minor, - const struct termios *t -) -{ - uint32_t pMG5UART_port; - uint32_t pMG5UART; - uint32_t cmd, cmdSave; - uint32_t baudcmd; - uint32_t shift; - rtems_interrupt_level Irql; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - pMG5UART_port = Console_Port_Tbl[minor]->ulCtrlPort2; - - /* - * Set the baud rate - */ - - if (mg5uart_baud_rate( minor, t->c_cflag, &baudcmd ) == -1) - return -1; - - /* - * Base settings - */ - - /* - * Base settings - */ - - cmd = MONGOOSEV_UART_CMD_RX_ENABLE | MONGOOSEV_UART_CMD_TX_ENABLE; - - /* - * Parity - */ - - if (t->c_cflag & PARENB) { - cmd |= MONGOOSEV_UART_CMD_PARITY_ENABLE; - if (t->c_cflag & PARODD) - cmd |= MONGOOSEV_UART_CMD_PARITY_ODD; - else - cmd |= MONGOOSEV_UART_CMD_PARITY_EVEN; - } else { - cmd |= MONGOOSEV_UART_CMD_PARITY_DISABLE; - } - - /* - * Character Size - */ - - if (t->c_cflag & CSIZE) { - switch (t->c_cflag & CSIZE) { - case CS5: - case CS6: - case CS7: - return -1; - break; - case CS8: - /* Mongoose-V only supports CS8 */ - break; - - } - } /* else default to CS8 */ - - /* - * Stop Bits - */ - -#if 0 - if (t->c_cflag & CSTOPB) { - /* 2 stop bits not supported by Mongoose-V uart */ - return -1; - } -#endif - - /* - * XXX what about CTS/RTS - */ - - /* XXX */ - - /* - * Now write the registers - */ - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_CMD_SHIFT; - else - shift = MONGOOSEV_UART1_CMD_SHIFT; - - - - rtems_interrupt_disable(Irql); - - cmdSave = MG5UART_GETREG( pMG5UART, MG5UART_COMMAND_REGISTER ); - - MG5UART_SETREG( pMG5UART, - MG5UART_COMMAND_REGISTER, - (cmdSave & ~(MONGOOSEV_UART_ALL_STATUS_BITS << shift)) | (cmd << shift) ); - - MG5UART_SETREG( pMG5UART_port, MG5UART_BAUD_RATE, baudcmd ); - - rtems_interrupt_enable(Irql); - return 0; -} - -/* - * mg5uart_initialize_context - * - * This function sets the default values of the per port context structure. - */ -MG5UART_STATIC void mg5uart_initialize_context( - int minor, - mg5uart_context *pmg5uartContext -) -{ - int port; - unsigned int pMG5UART; - unsigned int pMG5UART_port; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - pMG5UART_port = Console_Port_Tbl[minor]->ulCtrlPort2; - - pmg5uartContext->mate = -1; - - for (port=0 ; port<Console_Port_Count ; port++ ) { - if ( Console_Port_Tbl[port]->ulCtrlPort1 == pMG5UART && - Console_Port_Tbl[port]->ulCtrlPort2 != pMG5UART_port ) { - pmg5uartContext->mate = port; - break; - } - } - -} - -/* - * mg5uart_init - * - * This function initializes the DUART to a quiecsent state. - */ -MG5UART_STATIC void mg5uart_init(int minor) -{ - uint32_t pMG5UART; - uint32_t cmdSave; - uint32_t shift; - - mg5uart_context *pmg5uartContext; - - pmg5uartContext = (mg5uart_context *) malloc(sizeof(mg5uart_context)); - - Console_Port_Data[minor].pDeviceContext = (void *)pmg5uartContext; - - mg5uart_initialize_context( minor, pmg5uartContext ); - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_CMD_SHIFT; - else - shift = MONGOOSEV_UART1_CMD_SHIFT; - - /* - * Disable the uart and leave this port disabled. - */ - - cmdSave = MG5UART_GETREG(pMG5UART, MG5UART_COMMAND_REGISTER) & ~(MONGOOSEV_UART_ALL_STATUS_BITS << shift); - - MG5UART_SETREG( pMG5UART, MG5UART_COMMAND_REGISTER, cmdSave ); - - /* - * Disable interrupts on RX and TX for this port - */ - mg5uart_enable_interrupts( minor, MG5UART_DISABLE_ALL ); -} - -/* - * mg5uart_open - * - * This function opens a port for communication. - * - * Default state is 9600 baud, 8 bits, No parity, and 1 stop bit. - */ -MG5UART_STATIC int mg5uart_open( - int major, - int minor, - void *arg -) -{ - uint32_t pMG5UART; - uint32_t pMG5UART_port; - uint32_t cmd, cmdSave; - uint32_t baudcmd; - uint32_t shift; - - rtems_interrupt_level Irql; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - pMG5UART_port = Console_Port_Tbl[minor]->ulCtrlPort2; - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_CMD_SHIFT; - else - shift = MONGOOSEV_UART1_CMD_SHIFT; - - /* XXX default baud rate could be from configuration table */ - - (void) mg5uart_baud_rate( minor, B19200, &baudcmd ); - - /* - * Set the DUART channel to a default useable state - * B19200, 8Nx since there is no stop bit control. - */ - - cmd = MONGOOSEV_UART_CMD_TX_ENABLE | MONGOOSEV_UART_CMD_RX_ENABLE; - - rtems_interrupt_disable(Irql); - - cmdSave = MG5UART_GETREG( pMG5UART, MG5UART_COMMAND_REGISTER ); - - MG5UART_SETREG( pMG5UART_port, MG5UART_BAUD_RATE, baudcmd ); - - MG5UART_SETREG( pMG5UART, - MG5UART_COMMAND_REGISTER, - cmd = (cmdSave & ~(MONGOOSEV_UART_ALL_STATUS_BITS << shift)) | (cmd << shift) ); - - rtems_interrupt_enable(Irql); - - return RTEMS_SUCCESSFUL; -} - -/* - * mg5uart_close - * - * This function shuts down the requested port. - */ -MG5UART_STATIC int mg5uart_close( - int major, - int minor, - void *arg -) -{ - uint32_t pMG5UART; - uint32_t cmd, cmdSave; - uint32_t shift; - rtems_interrupt_level Irql; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - - /* - * Disable interrupts from this channel and then disable it totally. - */ - - /* XXX interrupts */ - - cmd = MONGOOSEV_UART_CMD_TX_DISABLE | MONGOOSEV_UART_CMD_RX_DISABLE; - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_CMD_SHIFT; - else - shift = MONGOOSEV_UART1_CMD_SHIFT; - - - rtems_interrupt_disable(Irql); - cmdSave = MG5UART_GETREG( pMG5UART, MG5UART_COMMAND_REGISTER ); - - MG5UART_SETREG( pMG5UART, - MG5UART_COMMAND_REGISTER, - (cmdSave & ~(MONGOOSEV_UART_ALL_STATUS_BITS << shift)) | (cmd << shift) ); - rtems_interrupt_enable(Irql); - - return(RTEMS_SUCCESSFUL); -} - -/* - * mg5uart_write_polled - * - * This routine polls out the requested character. - */ -MG5UART_STATIC void mg5uart_write_polled( - int minor, - char c -) -{ - uint32_t pMG5UART; - uint32_t pMG5UART_port; - uint32_t status; - int shift; - int timeout; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - pMG5UART_port = Console_Port_Tbl[minor]->ulCtrlPort2; - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_IRQ_SHIFT; - else - shift = MONGOOSEV_UART1_IRQ_SHIFT; - - /* - * wait for transmitter holding register to be empty - */ - timeout = 2000; - - while( --timeout ) - { - status = MG5UART_GETREG(pMG5UART, MG5UART_STATUS_REGISTER) >> shift; - - /* - if ( (status & (MONGOOSEV_UART_TX_READY | MONGOOSEV_UART_TX_EMPTY)) == - (MONGOOSEV_UART_TX_READY | MONGOOSEV_UART_TX_EMPTY) ) - break; - */ - - if( (status & (MONGOOSEV_UART_TX_READY | MONGOOSEV_UART_TX_EMPTY)) ) - break; - - /* - * Yield while we wait - */ - -#if 0 - if(_System_state_Is_up(_System_state_Get())) - { - rtems_task_wake_after(RTEMS_YIELD_PROCESSOR); - } -#endif - } - - /* - * transmit character - */ - - MG5UART_SETREG(pMG5UART_port, MG5UART_TX_BUFFER, c); -} - -MG5UART_STATIC void mg5uart_process_isr_rx_error( - int minor, - uint32_t mask -) -{ - uint32_t pMG5UART; - int shift; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_IRQ_SHIFT; - else - shift = MONGOOSEV_UART1_IRQ_SHIFT; - - /* now clear the error */ - - MG5UART_SETREG( - pMG5UART, - MG5UART_STATUS_REGISTER, - mask << shift ); -} - -MG5UART_STATIC void mg5uart_process_isr_rx_frame_error( - int minor -) -{ - mg5uart_process_isr_rx_error( minor, MONGOOSEV_UART_RX_FRAME_ERROR ); -} - -MG5UART_STATIC void mg5uart_process_isr_rx_overrun_error( - int minor -) -{ - mg5uart_process_isr_rx_error( minor, MONGOOSEV_UART_RX_OVERRUN_ERROR ); -} - -MG5UART_STATIC void mg5uart_process_tx_isr( - int minor, - uint32_t source -) -{ - uint32_t pMG5UART; - int shift; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - - mg5uart_enable_interrupts(minor, MG5UART_ENABLE_ALL_EXCEPT_TX); - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_IRQ_SHIFT; - else - shift = MONGOOSEV_UART1_IRQ_SHIFT; - - MG5UART_SETREG( - pMG5UART, - MG5UART_STATUS_REGISTER, - source << shift ); - - if( rtems_termios_dequeue_characters( Console_Port_Data[minor].termios_data, 1) ) - { - mg5uart_enable_interrupts(minor, MG5UART_ENABLE_ALL); - return; - } - - /* - * There are no more characters to transmit. The tx interrupts are be cleared - * by writing data to the uart, so just disable the tx interrupt sources. - */ - - Console_Port_Data[minor].bActive = FALSE; - - /* mg5uart_enable_interrupts(minor, MG5UART_ENABLE_ALL_EXCEPT_TX); */ -} - -MG5UART_STATIC void mg5uart_process_isr_tx_empty( - int minor -) -{ - /* mg5uart_process_tx_isr( minor, MONGOOSEV_UART_TX_EMPTY ); */ -} - -MG5UART_STATIC void mg5uart_process_isr_tx_ready( - int minor -) -{ - mg5uart_process_tx_isr( minor, MONGOOSEV_UART_TX_READY ); -} - -MG5UART_STATIC void mg5uart_process_isr_rx_ready( - int minor -) -{ - uint32_t pMG5UART_port; - char c; - - pMG5UART_port = Console_Port_Tbl[minor]->ulCtrlPort2; - - /* reading the RX buffer automatically resets the interrupt flag */ - - c = (char) MG5UART_GETREG(pMG5UART_port, MG5UART_RX_BUFFER); - - rtems_termios_enqueue_raw_characters( - Console_Port_Data[minor].termios_data, - &c, - 1 - ); -} - -static rtems_irq_connect_data mg5uart_rx_frame_error_cd = { \ - 0, /* filled in at initialization */ - mg5uart_isr_rx_frame_error, /* filled in at initialization */ - NULL, /* (void *) minor */ - NULL, - NULL, - NULL -}; - -static rtems_irq_connect_data mg5uart_rx_overrun_error_cd = { \ - 0, /* filled in at initialization */ - mg5uart_isr_rx_overrun_error, /* filled in at initialization */ - NULL, /* (void *) minor */ - NULL, - NULL, - NULL -}; - -static rtems_irq_connect_data mg5uart_tx_empty_cd = { \ - 0, /* filled in at initialization */ - mg5uart_isr_tx_empty, /* filled in at initialization */ - NULL, /* (void *) minor */ - NULL, - NULL, - NULL -}; - -static rtems_irq_connect_data mg5uart_tx_ready_cd = { \ - 0, /* filled in at initialization */ - mg5uart_isr_tx_ready, /* filled in at initialization */ - NULL, /* (void *) minor */ - NULL, - NULL, - NULL -}; - -static rtems_irq_connect_data mg5uart_rx_ready_cd = { \ - 0, /* filled in at initialization */ - mg5uart_isr_rx_ready, /* filled in at initialization */ - NULL, /* (void *) minor */ - NULL, - NULL, - NULL -}; - - -/* - * mg5uart_initialize_interrupts - * - * This routine initializes the console's receive and transmit - * ring buffers and loads the appropriate vectors to handle the interrupts. - */ - -MG5UART_STATIC void mg5uart_initialize_interrupts(int minor) -{ - unsigned long v; - mg5uart_init(minor); - - Console_Port_Data[minor].bActive = FALSE; - v = Console_Port_Tbl[minor]->ulIntVector; - - mg5uart_rx_frame_error_cd.name = v + MG5UART_IRQ_RX_FRAME_ERROR; - mg5uart_rx_overrun_error_cd.name = v + MG5UART_IRQ_RX_OVERRUN_ERROR; - mg5uart_tx_empty_cd.name = v + MG5UART_IRQ_TX_EMPTY; - mg5uart_tx_ready_cd.name = v + MG5UART_IRQ_TX_READY; - mg5uart_rx_ready_cd.name = v + MG5UART_IRQ_RX_READY; - - mg5uart_rx_frame_error_cd.handle = (void *)mg5uart_rx_frame_error_cd.name; - mg5uart_rx_overrun_error_cd.handle = (void *)mg5uart_rx_overrun_error_cd.name; - mg5uart_tx_empty_cd.handle = (void *)mg5uart_tx_empty_cd.name; - mg5uart_tx_ready_cd.handle = (void *)mg5uart_tx_ready_cd.name; - mg5uart_rx_ready_cd.handle = (void *)mg5uart_rx_ready_cd.name; - - - BSP_install_rtems_irq_handler( &mg5uart_rx_frame_error_cd ); - BSP_install_rtems_irq_handler( &mg5uart_rx_overrun_error_cd ); - BSP_install_rtems_irq_handler( &mg5uart_tx_empty_cd ); - BSP_install_rtems_irq_handler( &mg5uart_tx_ready_cd ); - BSP_install_rtems_irq_handler( &mg5uart_rx_ready_cd ); - - mg5uart_enable_interrupts(minor, MG5UART_ENABLE_ALL_EXCEPT_TX); -} - -/* - * mg5uart_write_support_int - * - * Console Termios output entry point when using interrupt driven output. - */ -MG5UART_STATIC int mg5uart_write_support_int( - int minor, - const char *buf, - size_t len -) -{ - uint32_t pMG5UART_port; - - pMG5UART_port = Console_Port_Tbl[minor]->ulCtrlPort2; - - /* - * We are using interrupt driven output and termios only sends us - * one character at a time. - */ - - if ( !len ) - return 0; - - /* - * Put the character out and enable interrupts if necessary. - */ - - MG5UART_SETREG(pMG5UART_port, MG5UART_TX_BUFFER, *buf); - - if( Console_Port_Data[minor].bActive == FALSE ) - { - Console_Port_Data[minor].bActive = TRUE; - mg5uart_enable_interrupts(minor, MG5UART_ENABLE_ALL); - } - - return 1; -} - - - - -/* - * mg5uart_write_support_polled - * - * Console Termios output entry point when using polled output. - * - */ - -MG5UART_STATIC ssize_t mg5uart_write_support_polled( - int minor, - const char *buf, - size_t len -) -{ - int nwrite = 0; - - /* - * poll each byte in the string out of the port. - */ - while (nwrite < len) - { - mg5uart_write_polled(minor, *buf++); - nwrite++; - } - - /* - * return the number of bytes written. - */ - return nwrite; -} - -/* - * mg5uart_inbyte_nonblocking_polled - * - * Console Termios polling input entry point. - */ - -MG5UART_STATIC int mg5uart_inbyte_nonblocking_polled( - int minor -) -{ - uint32_t pMG5UART; - uint32_t pMG5UART_port; - uint32_t status; - uint32_t tmp,shift; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - pMG5UART_port = Console_Port_Tbl[minor]->ulCtrlPort2; - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_IRQ_SHIFT; - else - shift = MONGOOSEV_UART1_IRQ_SHIFT; - - /* reset overrrun or framing errors */ - status = MG5UART_GETREG(pMG5UART, MG5UART_STATUS_REGISTER) >> shift; - - if( (tmp = (status & 0x3)) ) - { - MG5UART_SETREG(pMG5UART, MG5UART_STATUS_REGISTER, (tmp << shift) ); - status = MG5UART_GETREG(pMG5UART, MG5UART_STATUS_REGISTER) >> shift; - } - - if ( status & MONGOOSEV_UART_RX_READY ) - { - return (int) MG5UART_GETREG(pMG5UART_port, MG5UART_RX_BUFFER); - } - else - { - return -1; - } -} - -/* - * mg5uart_baud_rate - */ - -MG5UART_STATIC int mg5uart_baud_rate( - int minor, - uint32_t baud, - uint32_t *code -) -{ - uint32_t clock; - uint32_t tmp_code; - uint32_t baud_requested; - - baud_requested = baud & CBAUD; - if (!baud_requested) - baud_requested = B9600; /* default to 9600 baud */ - - baud_requested = rtems_termios_baud_to_number( baud_requested ); - - clock = (uint32_t) Console_Port_Tbl[minor]->ulClock; - if (!clock) - rtems_fatal_error_occurred(RTEMS_INVALID_NUMBER); - - /* - * Formula is Code = round(ClockFrequency / Baud - 1). - * - * Since this is integer math, we will divide by twice the baud and - * check the remaining odd bit. - */ - - tmp_code = (clock / baud_requested) - 1; - - /* - * From section 12.7, "Keep C>100 for best receiver operation." - * That is 100 cycles which is not a lot of instructions. It is - * reasonable to think that the Mongoose-V could not keep - * up with C < 100. - */ - - if ( tmp_code < 100 ) - return RTEMS_INVALID_NUMBER; - - /* - * upper word is receiver baud and lower word is transmitter baud - */ - - *code = (tmp_code << 16) | tmp_code; - - return 0; -} - - - - -/* - * mg5uart_enable_interrupts - * - * This function enables specific interrupt sources on the DUART. - */ - -MG5UART_STATIC void mg5uart_enable_interrupts( - int minor, - int mask -) -{ - uint32_t pMG5UART; - uint32_t maskSave; - uint32_t shift; - rtems_interrupt_level Irql; - - pMG5UART = Console_Port_Tbl[minor]->ulCtrlPort1; - - /* - * Enable interrupts on RX and TX -- not break - */ - - if ( Console_Port_Tbl[minor]->ulDataPort == MG5UART_UART0 ) - shift = MONGOOSEV_UART0_IRQ_SHIFT; - else - shift = MONGOOSEV_UART1_IRQ_SHIFT; - - - rtems_interrupt_disable(Irql); - - maskSave = MG5UART_GETREG( pMG5UART, MG5UART_INTERRUPT_MASK_REGISTER ); - - MG5UART_SETREG( - pMG5UART, - MG5UART_INTERRUPT_MASK_REGISTER, - (maskSave & ~(MONGOOSEV_UART_ALL_STATUS_BITS << shift)) | (mask << shift) ); - - rtems_interrupt_enable(Irql); -} - - - -/* - * Flow control is only supported when using interrupts - */ - -const console_fns mg5uart_fns = -{ - libchip_serial_default_probe, /* deviceProbe */ - mg5uart_open, /* deviceFirstOpen */ - NULL, /* deviceLastClose */ - NULL, /* deviceRead */ - mg5uart_write_support_int, /* deviceWrite */ - mg5uart_initialize_interrupts, /* deviceInitialize */ - mg5uart_write_polled, /* deviceWritePolled */ - mg5uart_set_attributes, /* deviceSetAttributes */ - TRUE /* deviceOutputUsesInterrupts */ -}; - -const console_fns mg5uart_fns_polled = -{ - libchip_serial_default_probe, /* deviceProbe */ - mg5uart_open, /* deviceFirstOpen */ - mg5uart_close, /* deviceLastClose */ - mg5uart_inbyte_nonblocking_polled, /* deviceRead */ - mg5uart_write_support_polled, /* deviceWrite */ - mg5uart_init, /* deviceInitialize */ - mg5uart_write_polled, /* deviceWritePolled */ - mg5uart_set_attributes, /* deviceSetAttributes */ - FALSE, /* deviceOutputUsesInterrupts */ -}; |