diff options
Diffstat (limited to 'c/src/lib/libbsp/i386/pc386/console/serial_mouse.c')
| -rw-r--r-- | c/src/lib/libbsp/i386/pc386/console/serial_mouse.c | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/i386/pc386/console/serial_mouse.c b/c/src/lib/libbsp/i386/pc386/console/serial_mouse.c new file mode 100644 index 0000000000..dbdb7ea14c --- /dev/null +++ b/c/src/lib/libbsp/i386/pc386/console/serial_mouse.c @@ -0,0 +1,348 @@ +/*************************************************************************** + * + * $Header$ + * + * MODULE DESCRIPTION: + * This module implements the RTEMS drivers for the PC serial ports + * as /dev/ttyS1 for COM1 and /dev/ttyS2 as COM2. If one of the ports + * is used as the console, this driver would fail to initialize. + * + * This code was based on the console driver. It is based on the + * current termios framework. This is just a shell around the + * termios support. + * + * by: Rosimildo da Silva: + * rdasilva@connecttel.com + * http://www.connecttel.com + * + * MODIFICATION/HISTORY: + * + * $Log$ + ****************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> + +#include <bsp.h> +#include <irq.h> +#include <rtems/libio.h> +#include <termios.h> +#include <uart.h> +#include <libcpu/cpuModel.h> + +int BSP_poll_read(int); + +#include <rtems/mw_uid.h> +#include "serial_mouse.h" +#include "mouse_parser.h" + +/* Internal routines */ +static int serial_mouse_conSetAttr( int minor, const struct termios *t); +static void isr_on(const rtems_irq_connect_data *); +static void isr_off(const rtems_irq_connect_data *); +static int isr_is_on(const rtems_irq_connect_data *); + + +extern BSP_polling_getchar_function_type BSP_poll_char; +extern int BSPConsolePort; + +/* Select Default to be COM1 */ +#if !defined( SERIAL_MOUSE_COM1 ) && !defined( SERIAL_MOUSE_COM2 ) +#define SERIAL_MOUSE_COM1 1 +#endif + +/* select which serial port the mouse is connected to */ +#ifdef SERIAL_MOUSE_COM1 +#define BSP_UART_PORT BSP_UART_COM1 +#define BSP_UART_IRQ BSP_UART_COM1_IRQ +#define BSP_ISR_FUNC BSP_uart_termios_isr_com1 +#define BSP_WRITE_FUNC BSP_uart_termios_write_com1 +#endif + +#ifdef SERIAL_MOUSE_COM2 +#define BSP_UART_PORT BSP_UART_COM2 +#define BSP_UART_IRQ BSP_UART_COM2_IRQ +#define BSP_ISR_FUNC BSP_uart_termios_isr_com2 +#define BSP_WRITE_FUNC BSP_uart_termios_write_com2 +#endif + +/* + * Interrupt structure for serial_mouse + */ +static rtems_irq_connect_data serial_mouse_isr_data = +{ + BSP_UART_IRQ, + BSP_ISR_FUNC, + isr_on, + isr_off, + isr_is_on}; + +static void isr_on(const rtems_irq_connect_data *unused) +{ + return; +} + +static void isr_off(const rtems_irq_connect_data *unused) +{ + return; +} + +static int isr_is_on(const rtems_irq_connect_data *irq) +{ + return BSP_irq_enabled_at_i8259s(irq->name); +} + +void serial_mouse_reserve_resources(rtems_configuration_table *conf) +{ + rtems_termios_reserve_resources(conf, 1); + return; +} + +/* + * Serial Mouse - device driver INITIALIZE entry point. + */ +rtems_device_driver +serial_mouse_initialize(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) +{ + rtems_status_code status; + + /* Check if this port is not been used as console */ + if( BSPConsolePort == BSP_UART_PORT ) + { + status = -1; + printk("SERIAL MOUSE: port selected as console.( %d )\n", BSP_UART_PORT ); + rtems_fatal_error_occurred( status ); + } + + /* + * Set up TERMIOS + */ + rtems_termios_initialize(); + + /* + * Do device-specific initialization + */ + /* 9600-8-N-1, without hardware flow control */ + BSP_uart_init( BSP_UART_PORT, 1200, 0 ); + status = BSP_install_rtems_irq_handler( &serial_mouse_isr_data ); + if( !status ) + { + printk("Error installing serial mouse interrupt handler!\n"); + rtems_fatal_error_occurred(status); + } + /* + * Register the device + */ + status = rtems_io_register_name ("/dev/mouse", major, 0); + if (status != RTEMS_SUCCESSFUL) + { + printk("Error registering /dev/mouse device!\n"); + rtems_fatal_error_occurred (status); + } + printk("Device: /dev/mouse on COM%d -- ok \n", BSP_UART_PORT ); + return RTEMS_SUCCESSFUL; +} /* tty_initialize */ + + +static int serial_mouse_last_close(int major, int minor, void *arg) +{ + BSP_remove_rtems_irq_handler( &serial_mouse_isr_data ); + return 0; +} + +/* + * serial_mouse - device driver OPEN entry point + */ +rtems_device_driver +serial_mouse_open(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) +{ + rtems_status_code status; + static rtems_termios_callbacks cb = + { + NULL, /* firstOpen */ + serial_mouse_last_close, /* lastClose */ + NULL, /* poll read */ + BSP_WRITE_FUNC, /* write */ + serial_mouse_conSetAttr, /* setAttributes */ + NULL, /* stopRemoteTx */ + NULL, /* startRemoteTx */ + 1 /* outputUsesInterrupts */ + }; + + status = rtems_termios_open( major, minor, arg, &cb ); + if(status != RTEMS_SUCCESSFUL) + { + printk("Error openning serial_mouse device\n"); + return status; + } + + /* + * Pass data area info down to driver + */ + BSP_uart_termios_set( BSP_UART_PORT, + ((rtems_libio_open_close_args_t *)arg)->iop->data1 ); + /* Enable interrupts on channel */ + BSP_uart_intr_ctrl( BSP_UART_PORT, BSP_UART_INTR_CTRL_TERMIOS); + return RTEMS_SUCCESSFUL; +} + +/* + * TTY - device driver CLOSE entry point + */ +rtems_device_driver +serial_mouse_close(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) +{ + + return (rtems_termios_close (arg)); + +} /* tty_close */ + + +/* + * TTY device driver READ entry point. + * Read characters from the tty device. + */ +rtems_device_driver +serial_mouse_read(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) +{ + return rtems_termios_read (arg); +} /* tty_read */ + + +/* + * TTY device driver WRITE entry point. + * Write characters to the tty device. + */ +rtems_device_driver +serial_mouse_write(rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg) +{ + return rtems_termios_write (arg); + +} /* tty_write */ + +/* + * Handle ioctl request. This is a generic internal + * routine to handle both devices. + */ +static rtems_device_driver serial_mouse_control_internal( int port, void *arg ) +{ + rtems_libio_ioctl_args_t *args = arg; + switch( args->command ) + { + default: + return rtems_termios_ioctl (arg); + break; + + case MW_UID_REGISTER_DEVICE: + printk( "SerialMouse: reg=%s\n", args->buffer ); + register_mou_msg_queue( args->buffer, BSP_UART_PORT ); + break; + + case MW_UID_UNREGISTER_DEVICE: + unregister_mou_msg_queue( BSP_UART_PORT ); + break; + + } + args->ioctl_return = 0; + return RTEMS_SUCCESSFUL; +} + +/* + * Handle ioctl request for ttyS1. + */ +rtems_device_driver +serial_mouse_control(rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return serial_mouse_control_internal( BSP_UART_PORT, arg ); +} + +static int +conSetAttr(int port, 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; + } + printk("Mouse baud, port=%X, baud=%d\n", port, baud ); + BSP_uart_set_baud( port, baud ); + return 0; +} + +/* + * Handle ioctl request for ttyS2. + */ +static int +serial_mouse_conSetAttr( int minor, const struct termios *t) +{ + return conSetAttr( BSP_UART_PORT, minor, t ); +} |