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Diffstat (limited to 'c/src/lib/libbsp/i386/pc386/console/fb_vga.c')
-rw-r--r--c/src/lib/libbsp/i386/pc386/console/fb_vga.c245
1 files changed, 0 insertions, 245 deletions
diff --git a/c/src/lib/libbsp/i386/pc386/console/fb_vga.c b/c/src/lib/libbsp/i386/pc386/console/fb_vga.c
deleted file mode 100644
index 75ad56eb98..0000000000
--- a/c/src/lib/libbsp/i386/pc386/console/fb_vga.c
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * Copyright (c) 2000 - Rosimildo da Silva ( rdasilva@connecttel.com )
- *
- * MODULE DESCRIPTION:
- * This module implements FB driver for "Bare VGA". It uses the
- * routines for "bare hardware" found in vgainit.c.
- *
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <pthread.h>
-
-#include <bsp.h>
-#include <bsp/irq.h>
-#include <rtems/libio.h>
-
-#include <rtems/fb.h>
-#include <rtems/framebuffer.h>
-
-#include <rtems/score/atomic.h>
-
-/* these routines are defined in vgainit.c.*/
-extern void ega_hwinit( void );
-extern void ega_hwterm( void );
-
-/* flag to limit driver to protect against multiple opens */
-static Atomic_Flag driver_mutex;
-
-/* screen information for the VGA driver */
-static struct fb_var_screeninfo fb_var =
-{
- .xres = 640,
- .yres = 480,
- .bits_per_pixel = 4
-};
-
-static struct fb_fix_screeninfo fb_fix =
-{
- .smem_start = (volatile char *)0xA0000, /* buffer pointer */
- .smem_len = 0x10000, /* buffer size */
- .type = FB_TYPE_VGA_PLANES, /* type of dsplay */
- .visual = FB_VISUAL_PSEUDOCOLOR, /* color scheme used */
- .line_length = 80 /* chars per line */
-};
-
-
-static uint16_t red16[] = {
- 0x0000, 0x0000, 0x0000, 0x0000, 0xaaaa, 0xaaaa, 0xaaaa, 0xaaaa,
- 0x5555, 0x5555, 0x5555, 0x5555, 0xffff, 0xffff, 0xffff, 0xffff
-};
-static uint16_t green16[] = {
- 0x0000, 0x0000, 0xaaaa, 0xaaaa, 0x0000, 0x0000, 0x5555, 0xaaaa,
- 0x5555, 0x5555, 0xffff, 0xffff, 0x5555, 0x5555, 0xffff, 0xffff
-};
-static uint16_t blue16[] = {
- 0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa, 0x0000, 0xaaaa,
- 0x5555, 0xffff, 0x5555, 0xffff, 0x5555, 0xffff, 0x5555, 0xffff
-};
-
-/* Functionality to support multiple VGA frame buffers can be added easily,
- * but is not supported at this moment because there is no need for two or
- * more "classic" VGA adapters. Multiple frame buffer drivers may be
- * implemented and If we had implement it they would be named as "/dev/fb0",
- * "/dev/fb1", "/dev/fb2" and so on.
- */
-/*
- * fbvga device driver INITIALIZE entry point.
- */
-rtems_device_driver frame_buffer_initialize(
- rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *arg
-)
-{
- rtems_status_code status;
-
- printk( "FBVGA -- driver initializing..\n" );
-
- /*
- * Register the device
- */
- status = rtems_io_register_name (FRAMEBUFFER_DEVICE_0_NAME, major, 0);
- if (status != RTEMS_SUCCESSFUL) {
- printk("Error registering " FRAMEBUFFER_DEVICE_0_NAME
- " FBVGA framebuffer device!\n");
- rtems_fatal_error_occurred( status );
- }
-
- _Atomic_Flag_clear(&driver_mutex, ATOMIC_ORDER_RELEASE);
-
- return RTEMS_SUCCESSFUL;
-}
-
-/*
- * fbvga device driver OPEN entry point
- */
-rtems_device_driver frame_buffer_open(
- rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *arg
-)
-{
- if (_Atomic_Flag_test_and_set(&driver_mutex, ATOMIC_ORDER_ACQUIRE) != 0 ) {
- /* restore previous state. for VGA this means return to text mode.
- * leave out if graphics hardware has been initialized in
- * frame_buffer_initialize()
- */
- ega_hwinit();
- printk( "FBVGA open called.\n" );
- return RTEMS_SUCCESSFUL;
- }
-
- return RTEMS_UNSATISFIED;
-}
-
-/*
- * fbvga device driver CLOSE entry point
- */
-rtems_device_driver frame_buffer_close(
- rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *arg
-)
-{
- _Atomic_Flag_clear(&driver_mutex, ATOMIC_ORDER_RELEASE);
- /* restore previous state. for VGA this means return to text mode.
- * leave out if graphics hardware has been initialized in
- * frame_buffer_initialize() */
- ega_hwterm();
- printk( "FBVGA close called.\n" );
- return RTEMS_SUCCESSFUL;
-
-/*
- * fbvga device driver READ entry point.
- */
-rtems_device_driver frame_buffer_read(
- rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *arg
-)
-{
- rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *)arg;
- rw_args->bytes_moved = ((rw_args->offset + rw_args->count) > fb_fix.smem_len ) ? (fb_fix.smem_len - rw_args->offset) : rw_args->count;
- memcpy(rw_args->buffer, (const void *) (fb_fix.smem_start + rw_args->offset), rw_args->bytes_moved);
- return RTEMS_SUCCESSFUL;
-}
-
-/*
- * frame_buffer device driver WRITE entry point.
- */
-rtems_device_driver frame_buffer_write(
- rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *arg
-)
-{
- rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *)arg;
- rw_args->bytes_moved = ((rw_args->offset + rw_args->count) > fb_fix.smem_len ) ? (fb_fix.smem_len - rw_args->offset) : rw_args->count;
- memcpy( (void *) (fb_fix.smem_start + rw_args->offset), rw_args->buffer, rw_args->bytes_moved);
- return RTEMS_SUCCESSFUL;
-}
-
-static int get_fix_screen_info( struct fb_fix_screeninfo *info )
-{
- *info = fb_fix;
- return 0;
-}
-
-static int get_var_screen_info( struct fb_var_screeninfo *info )
-{
- *info = fb_var;
- return 0;
-}
-
-static int get_palette( struct fb_cmap *cmap )
-{
- uint32_t i;
-
- if ( cmap->start + cmap->len >= 16 )
- return 1;
-
- for( i = 0; i < cmap->len; i++ ) {
- cmap->red[ cmap->start + i ] = red16[ cmap->start + i ];
- cmap->green[ cmap->start + i ] = green16[ cmap->start + i ];
- cmap->blue[ cmap->start + i ] = blue16[ cmap->start + i ];
- }
- return 0;
-}
-
-static int set_palette( struct fb_cmap *cmap )
-{
- uint32_t i;
-
- if ( cmap->start + cmap->len >= 16 )
- return 1;
-
- for( i = 0; i < cmap->len; i++ ) {
- red16[ cmap->start + i ] = cmap->red[ cmap->start + i ];
- green16[ cmap->start + i ] = cmap->green[ cmap->start + i ];
- blue16[ cmap->start + i ] = cmap->blue[ cmap->start + i ];
- }
- return 0;
-}
-
-/*
- * IOCTL entry point -- This method is called to carry
- * all services of this interface.
- */
-rtems_device_driver frame_buffer_control(
- rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *arg
-)
-{
- rtems_libio_ioctl_args_t *args = arg;
-
- printk( "FBVGA ioctl called, cmd=%x\n", args->command );
-
- switch( args->command ) {
- case FBIOGET_FSCREENINFO:
- args->ioctl_return = get_fix_screen_info( ( struct fb_fix_screeninfo * ) args->buffer );
- break;
- case FBIOGET_VSCREENINFO:
- args->ioctl_return = get_var_screen_info( ( struct fb_var_screeninfo * ) args->buffer );
- break;
- case FBIOPUT_VSCREENINFO:
- /* not implemented yet*/
- args->ioctl_return = -1;
- return RTEMS_UNSATISFIED;
- case FBIOGETCMAP:
- args->ioctl_return = get_palette( ( struct fb_cmap * ) args->buffer );
- break;
- case FBIOPUTCMAP:
- args->ioctl_return = set_palette( ( struct fb_cmap * ) args->buffer );
- break;
-
- default:
- args->ioctl_return = 0;
- break;
- }
- return RTEMS_SUCCESSFUL;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 23:40:42 +0000