From mboxrd@z Thu Jan 1 00:00:00 1970 From: Antonino Daplas Subject: Re: [Linux-fbdev-devel] [PATCH][FBDEV]: fb_putcs() and fb_setfont() methods Date: 05 Jan 2003 06:06:21 +0800 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <1041717978.1052.23.camel@localhost.localdomain> References: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Id: Cc: Linux Fbdev development list , Linux Kernel List On Sun, 2003-01-05 at 05:07, James Simmons wrote: > > Rejected. I have put thought into it and the whole point was to not allow Personally, that's fine by me since I have no need for those 2 extensions. But please apply the accel_putcs() buffer overrun patch. BTW, attached is another patch that will change the resolution of the console via tty ioctl TIOCSWINSZ. I'm not sure if this is the correct solution, but it's the only one I can think of without really adding a lot of extra code. This is implemented by adding a con_resize() hook to fbcon, so the window size can be changed such as by using: stty cols 128 rows 48 (1024x768 with font 8x16) The new window size should also be preserved per console. Still, there are other fb parameters that can screw up the console (such as changing yres_virtual and bits_per_pixel) but the window size is the most important. Tony diff -Naur linux-2.5.54/drivers/video/console/fbcon.c linux/drivers/video/console/fbcon.c --- linux-2.5.54/drivers/video/console/fbcon.c 2003-01-04 21:58:47.000000000 +0000 +++ linux/drivers/video/console/fbcon.c 2003-01-04 21:58:24.000000000 +0000 @@ -1871,6 +1871,25 @@ } +static int fbcon_resize(struct vc_data *vc, unsigned int width, + unsigned int height) +{ + struct display *p = &fb_display[vc->vc_num]; + struct fb_info *info = p->fb_info; + struct fb_var_screeninfo var = info->var; + int err; + + var.xres = width * vc->vc_font.width; + var.yres = height * vc->vc_font.height; + var.activate = FB_ACTIVATE_NOW; + + err = fb_set_var(&var, info); + return (err || var.xres != info->var.xres || + var.yres != info->var.yres) ? + -EINVAL : 0; + +} + static int fbcon_switch(struct vc_data *vc) { int unit = vc->vc_num; @@ -1920,6 +1939,7 @@ info->currcon = unit; + fbcon_resize(vc, vc->vc_cols, vc->vc_rows); update_var(unit, info); if (vt_cons[unit]->vc_mode == KD_TEXT) @@ -2537,6 +2557,7 @@ .con_invert_region = fbcon_invert_region, .con_screen_pos = fbcon_screen_pos, .con_getxy = fbcon_getxy, + .con_resize = fbcon_resize, }; int __init fb_console_init(void)