diff options
Diffstat (limited to 'c/src/lib/libbsp/i386/pc386/console/console.c')
| -rw-r--r-- | c/src/lib/libbsp/i386/pc386/console/console.c | 346 |
1 files changed, 250 insertions, 96 deletions
diff --git a/c/src/lib/libbsp/i386/pc386/console/console.c b/c/src/lib/libbsp/i386/pc386/console/console.c index 1689f5c546..8698ea8136 100644 --- a/c/src/lib/libbsp/i386/pc386/console/console.c +++ b/c/src/lib/libbsp/i386/pc386/console/console.c @@ -33,10 +33,17 @@ #include <stdlib.h> +#include <assert.h> #include <bsp.h> #include <irq.h> #include <rtems/libio.h> +#include <termios.h> +#include <pc386uart.h> + +int PC386ConsolePort = PC386_CONSOLE_PORT_CONSOLE; + +static int conSetAttr(int minor, const struct termios *); /*-------------------------------------------------------------------------+ | Constants @@ -51,74 +58,25 @@ extern rtems_isr _IBMPC_keyboard_isr(rtems_vector_number); /* keyboard (IRQ 0x01) Interrupt Service Routine (defined in 'inch.c') */ -/*-------------------------------------------------------------------------+ -| Functions -+--------------------------------------------------------------------------*/ -/*-------------------------------------------------------------------------+ -| Function: console_cleanup -| Description: This routine is called at exit to clean up the console -| hardware. -| Global Variables: None. -| Arguments: None. -| Returns: Nothing. -+--------------------------------------------------------------------------*/ -void -console_cleanup(void) +void console_reserve_resources(rtems_configuration_table *conf) { - /* nothing */ -} /* console_cleanup */ - - -/*-------------------------------------------------------------------------+ -| Function: is_character_ready -| Description: Check if a character is available for input, and if so -| return it. -| Global Variables: None. -| Arguments: c - character read if available, otherwise unchanged. -| Returns: TRUE if there was a character available for input, -| FALSE otherwise. -+--------------------------------------------------------------------------*/ -rtems_boolean -is_character_ready(char *c) -{ - return (_IBMPC_chrdy(c) ? TRUE : FALSE); -} /* is_character_ready */ - + if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) + { + rtems_termios_reserve_resources(conf, 1); + } + return; +} -/*-------------------------------------------------------------------------+ -| Function: inbyte -| Description: Read a character from the console (keyboard). -| Global Variables: None. -| Arguments: None. -| Returns: Caracter read from the console. -+--------------------------------------------------------------------------*/ -unsigned char -inbyte(void) +void __assert(const char *file, int line, const char *msg) { - char c = _IBMPC_inch(); - - /* Echo character to screen */ - _IBMPC_outch(c); - if (c == '\r') - _IBMPC_outch('\n'); /* CR = CR + LF */ + printk("assert failed: %s: ", file); + printk("%d: ", line); + printk("%s\n", msg); - return c; -} /* inbyte */ - - -/*-------------------------------------------------------------------------+ -| Function: outbyte -| Description: Write a character to the console (display). -| Global Variables: None. -| Arguments: Character to be written. -| Returns: Nothing. -+--------------------------------------------------------------------------*/ -void -outbyte(char c) -{ - _IBMPC_outch(c); -} /* outbyte */ + exit(1); + return; +} /*-------------------------------------------------------------------------+ | Console device driver INITIALIZE entry point. @@ -135,26 +93,74 @@ console_initialize(rtems_device_major_number major, /* Initialize video */ _IBMPC_initVideo(); - /* Install keyboard interrupt handler */ - status = PC386_installRtemsIrqHandler(KEYBOARD_IRQ, _IBMPC_keyboard_isr); - - if (status != RTEMS_SUCCESSFUL) - { - printk("Error installing keyboard interrupt handler!\n"); - rtems_fatal_error_occurred(status); - } + if(PC386ConsolePort == PC386_CONSOLE_PORT_CONSOLE) + { - status = - rtems_io_register_name("/dev/console", major, (rtems_device_minor_number)0); - - if (status != RTEMS_SUCCESSFUL) - { - printk("Error registering console device!\n"); - rtems_fatal_error_occurred(status); - } + /* Install keyboard interrupt handler */ + status = PC386_installRtemsIrqHandler(KEYBOARD_IRQ, _IBMPC_keyboard_isr); + + if (status != RTEMS_SUCCESSFUL) + { + printk("Error installing keyboard interrupt handler!\n"); + rtems_fatal_error_occurred(status); + } + + status = rtems_io_register_name("/dev/console", major, 0); + if (status != RTEMS_SUCCESSFUL) + { + printk("Error registering console device!\n"); + rtems_fatal_error_occurred(status); + } + printk("Initialized console on port CONSOLE\n\n"); + } + else + { + /* + * Set up TERMIOS + */ + rtems_termios_initialize (); + + /* + * Do device-specific initialization + */ + + /* 9600-8-N-1 */ + PC386_uart_init(PC386ConsolePort, 9600, 0); + + + /* Set interrupt handler */ + if(PC386ConsolePort == PC386_UART_COM1) + { + status = PC386_installRtemsIrqHandler(PC386_UART_COM1_IRQ, + PC386_uart_termios_isr_com1); + } + else + { + assert(PC386ConsolePort == PC386_UART_COM2); + + status = PC386_installRtemsIrqHandler(PC386_UART_COM2_IRQ, + PC386_uart_termios_isr_com2); + } + /* + * Register the device + */ + status = rtems_io_register_name ("/dev/console", major, 0); + if (status != RTEMS_SUCCESSFUL) + { + printk("Error registering console device!\n"); + rtems_fatal_error_occurred (status); + } + + if(PC386ConsolePort == PC386_UART_COM1) + { + printk("Initialized console on port COM1 9600-8-N-1\n\n"); + } + else + { + printk("Initialized console on port COM2 9600-8-N-1\n\n"); + } + } - atexit(console_cleanup); - return RTEMS_SUCCESSFUL; } /* console_initialize */ @@ -164,12 +170,51 @@ console_initialize(rtems_device_major_number major, +--------------------------------------------------------------------------*/ rtems_device_driver console_open(rtems_device_major_number major, - rtems_device_minor_number minor, - void *arg) + rtems_device_minor_number minor, + void *arg) { - return RTEMS_SUCCESSFUL; -} /* console_open */ + rtems_status_code status; + static rtems_termios_callbacks cb = + { + NULL, /* firstOpen */ + NULL, /* lastClose */ + NULL, /* pollRead */ + PC386_uart_termios_write_com1, /* write */ + conSetAttr, /* setAttributes */ + NULL, /* stopRemoteTx */ + NULL, /* startRemoteTx */ + 1 /* outputUsesInterrupts */ + }; + + if(PC386ConsolePort == PC386_CONSOLE_PORT_CONSOLE) + { + return RTEMS_SUCCESSFUL; + } + if(PC386ConsolePort == PC386_UART_COM2) + { + cb.write = PC386_uart_termios_write_com2; + } + + status = rtems_termios_open (major, minor, arg, &cb); + + if(status != RTEMS_SUCCESSFUL) + { + printk("Error openning console device\n"); + return status; + } + + /* + * Pass data area info down to driver + */ + PC386_uart_termios_set(PC386ConsolePort, + ((rtems_libio_open_close_args_t *)arg)->iop->data1); + + /* Enable interrupts on channel */ + PC386_uart_intr_ctrl(PC386ConsolePort, PC386_UART_INTR_CTRL_TERMIOS); + + return RTEMS_SUCCESSFUL; +} /*-------------------------------------------------------------------------+ | Console device driver CLOSE entry point @@ -179,6 +224,11 @@ console_close(rtems_device_major_number major, rtems_device_minor_number minor, void *arg) { + if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) + { + return rtems_termios_close (arg); + } + return RTEMS_SUCCESSFUL; } /* console_close */ @@ -196,10 +246,24 @@ console_read(rtems_device_major_number major, rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *)arg; char *buffer = rw_args->buffer; int count, maximum = rw_args->count; + + if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) + { + return rtems_termios_read (arg); + } for (count = 0; count < maximum; count++) { - buffer[count] = inbyte(); + /* Get character */ + buffer[count] = _IBMPC_inch_sleep(); + + /* Echo character to screen */ + _IBMPC_outch(buffer[count]); + if (buffer[count] == '\r') + { + _IBMPC_outch('\n'); /* CR = CR + LF */ + } + if (buffer[count] == '\n' || buffer[count] == '\r') { /* What if this goes past the end of the buffer? We're hosed. [bhc] */ @@ -227,12 +291,17 @@ console_write(rtems_device_major_number major, rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *)arg; char *buffer = rw_args->buffer; int count, maximum = rw_args->count; + + if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) + { + return rtems_termios_write (arg); + } for (count = 0; count < maximum; count++) { - outbyte(buffer[count]); + _IBMPC_outch(buffer[count]); if (buffer[count] == '\n') - outbyte('\r'); /* LF = LF + CR */ + _IBMPC_outch('\r'); /* LF = LF + CR */ } rw_args->bytes_moved = maximum; @@ -240,13 +309,98 @@ console_write(rtems_device_major_number major, } /* console_write */ -/*-------------------------------------------------------------------------+ -| Console device driver CONTROL entry point -+--------------------------------------------------------------------------*/ -rtems_device_driver + +/* + * Handle ioctl request. + */ +rtems_device_driver console_control(rtems_device_major_number major, - rtems_device_minor_number minor, - void *arg) -{ + rtems_device_minor_number minor, + void * arg +) +{ + if(PC386ConsolePort != PC386_CONSOLE_PORT_CONSOLE) + { + return rtems_termios_ioctl (arg); + } + return RTEMS_SUCCESSFUL; -} /* console_control */ +} + +static int +conSetAttr(int minor, const struct termios *t) +{ + int baud; + + switch (t->c_cflag & CBAUD) + { + case B50: + baud = 50; + break; + case B75: + baud = 75; + break; + case B110: + baud = 110; + break; + case B134: + baud = 134; + break; + case B150: + baud = 150; + break; + case B200: + baud = 200; + break; + case B300: + baud = 300; + break; + case B600: + baud = 600; + break; + case B1200: + baud = 1200; + break; + case B1800: + baud = 1800; + break; + case B2400: + baud = 2400; + break; + case B4800: + baud = 4800; + break; + case B9600: + baud = 9600; + break; + case B19200: + baud = 19200; + break; + case B38400: + baud = 38400; + break; + case B57600: + baud = 57600; + break; + case B115200: + baud = 115200; + break; + default: + baud = 0; + rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR); + return 0; + } + + PC386_uart_set_baud(PC386ConsolePort, baud); + + return 0; +} + + + + + + + + + |