685 lines
17 KiB
C
685 lines
17 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Geode LX framebuffer driver.
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*
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* Copyright (C) 2007 Advanced Micro Devices, Inc.
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* Built from gxfb (which is Copyright (C) 2006 Arcom Control Systems Ltd.)
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*/
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#include <linux/aperture.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/console.h>
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#include <linux/mm.h>
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#include <linux/suspend.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/uaccess.h>
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#include <asm/olpc.h>
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#include "lxfb.h"
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static char *mode_option;
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static int noclear, nopanel, nocrt;
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static int vram;
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static int vt_switch;
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/* Most of these modes are sorted in ascending order, but
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* since the first entry in this table is the "default" mode,
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* we try to make it something sane - 640x480-60 is sane
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*/
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static struct fb_videomode geode_modedb[] = {
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/* 640x480-60 */
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{ NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 640x400-70 */
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{ NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2,
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FB_SYNC_HOR_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 640x480-70 */
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{ NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 640x480-72 */
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{ NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 640x480-75 */
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{ NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 640x480-85 */
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{ NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 640x480-90 */
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{ NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 640x480-100 */
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{ NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 640x480-60 */
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{ NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-56 */
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{ NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-60 */
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{ NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-70 */
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{ NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-72 */
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{ NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-75 */
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{ NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-85 */
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{ NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-90 */
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{ NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-100 */
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{ NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 800x600-60 */
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{ NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 1024x768-60 */
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{ NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 1024x768-70 */
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{ NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 1024x768-72 */
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{ NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1024x768-75 */
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{ NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1024x768-85 */
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{ NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1024x768-90 */
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{ NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1024x768-100 */
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{ NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1024x768-60 */
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{ NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 1152x864-60 */
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{ NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1152x864-70 */
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{ NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1152x864-72 */
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{ NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1152x864-75 */
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{ NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1152x864-85 */
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{ NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1152x864-90 */
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{ NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1152x864-100 */
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{ NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1152x864-60 */
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{ NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 1280x1024-60 */
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{ NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1280x1024-70 */
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{ NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1280x1024-72 */
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{ NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1280x1024-75 */
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{ NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1280x1024-85 */
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{ NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1280x1024-90 */
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{ NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1280x1024-100 */
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{ NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1280x1024-60 */
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{ NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 1600x1200-60 */
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{ NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1600x1200-70 */
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{ NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1600x1200-72 */
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{ NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1600x1200-75 */
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{ NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1600x1200-85 */
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{ NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1600x1200-90 */
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{ NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1600x1200-100 */
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{ NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1600x1200-60 */
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{ NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 },
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/* 1920x1440-60 */
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{ NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1920x1440-70 */
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{ NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1920x1440-72 */
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{ NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1920x1440-75 */
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{ NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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/* 1920x1440-85 */
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{ NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3,
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0, FB_VMODE_NONINTERLACED, 0 },
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};
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static struct fb_videomode olpc_dcon_modedb[] = {
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/* The only mode the DCON has is 1200x900 */
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{ NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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FB_VMODE_NONINTERLACED, 0 }
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};
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static void get_modedb(struct fb_videomode **modedb, unsigned int *size)
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{
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if (olpc_has_dcon()) {
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*modedb = (struct fb_videomode *) olpc_dcon_modedb;
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*size = ARRAY_SIZE(olpc_dcon_modedb);
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} else {
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*modedb = (struct fb_videomode *) geode_modedb;
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*size = ARRAY_SIZE(geode_modedb);
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}
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}
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static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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{
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if (!var->pixclock)
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return -EINVAL;
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if (var->xres > 1920 || var->yres > 1440)
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return -EINVAL;
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if (var->bits_per_pixel == 32) {
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var->red.offset = 16; var->red.length = 8;
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var->green.offset = 8; var->green.length = 8;
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var->blue.offset = 0; var->blue.length = 8;
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} else if (var->bits_per_pixel == 16) {
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var->red.offset = 11; var->red.length = 5;
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var->green.offset = 5; var->green.length = 6;
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var->blue.offset = 0; var->blue.length = 5;
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} else if (var->bits_per_pixel == 8) {
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var->red.offset = 0; var->red.length = 8;
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var->green.offset = 0; var->green.length = 8;
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var->blue.offset = 0; var->blue.length = 8;
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} else
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return -EINVAL;
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var->transp.offset = 0; var->transp.length = 0;
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/* Enough video memory? */
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if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres)
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> info->fix.smem_len)
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return -EINVAL;
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return 0;
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}
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static int lxfb_set_par(struct fb_info *info)
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{
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if (info->var.bits_per_pixel > 8)
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info->fix.visual = FB_VISUAL_TRUECOLOR;
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else
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info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
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info->fix.line_length = lx_get_pitch(info->var.xres,
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info->var.bits_per_pixel);
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lx_set_mode(info);
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return 0;
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}
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static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
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{
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chan &= 0xffff;
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chan >>= 16 - bf->length;
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return chan << bf->offset;
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}
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static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
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unsigned blue, unsigned transp,
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struct fb_info *info)
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{
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if (info->var.grayscale) {
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/* grayscale = 0.30*R + 0.59*G + 0.11*B */
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red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
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}
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/* Truecolor has hardware independent palette */
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if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
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u32 *pal = info->pseudo_palette;
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||
|
|
u32 v;
|
||
|
|
|
||
|
|
if (regno >= 16)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
v = chan_to_field(red, &info->var.red);
|
||
|
|
v |= chan_to_field(green, &info->var.green);
|
||
|
|
v |= chan_to_field(blue, &info->var.blue);
|
||
|
|
|
||
|
|
pal[regno] = v;
|
||
|
|
} else {
|
||
|
|
if (regno >= 256)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
lx_set_palette_reg(info, regno, red, green, blue);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lxfb_blank(int blank_mode, struct fb_info *info)
|
||
|
|
{
|
||
|
|
return lx_blank_display(info, blank_mode);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static int lxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev)
|
||
|
|
{
|
||
|
|
struct lxfb_par *par = info->par;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = pci_enable_device(dev);
|
||
|
|
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
ret = pci_request_region(dev, 0, "lxfb-framebuffer");
|
||
|
|
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
ret = pci_request_region(dev, 1, "lxfb-gp");
|
||
|
|
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
ret = pci_request_region(dev, 2, "lxfb-vg");
|
||
|
|
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
ret = pci_request_region(dev, 3, "lxfb-vp");
|
||
|
|
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
info->fix.smem_start = pci_resource_start(dev, 0);
|
||
|
|
info->fix.smem_len = vram ? vram : lx_framebuffer_size();
|
||
|
|
|
||
|
|
info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
|
||
|
|
|
||
|
|
ret = -ENOMEM;
|
||
|
|
|
||
|
|
if (info->screen_base == NULL)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
par->gp_regs = pci_ioremap_bar(dev, 1);
|
||
|
|
|
||
|
|
if (par->gp_regs == NULL)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
par->dc_regs = pci_ioremap_bar(dev, 2);
|
||
|
|
|
||
|
|
if (par->dc_regs == NULL)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
par->vp_regs = pci_ioremap_bar(dev, 3);
|
||
|
|
|
||
|
|
if (par->vp_regs == NULL)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK);
|
||
|
|
write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000);
|
||
|
|
write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK);
|
||
|
|
|
||
|
|
dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n",
|
||
|
|
info->fix.smem_len / 1024, info->fix.smem_start);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct fb_ops lxfb_ops = {
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
.fb_check_var = lxfb_check_var,
|
||
|
|
.fb_set_par = lxfb_set_par,
|
||
|
|
.fb_setcolreg = lxfb_setcolreg,
|
||
|
|
.fb_blank = lxfb_blank,
|
||
|
|
/* No HW acceleration for now. */
|
||
|
|
.fb_fillrect = cfb_fillrect,
|
||
|
|
.fb_copyarea = cfb_copyarea,
|
||
|
|
.fb_imageblit = cfb_imageblit,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct fb_info *lxfb_init_fbinfo(struct device *dev)
|
||
|
|
{
|
||
|
|
struct lxfb_par *par;
|
||
|
|
struct fb_info *info;
|
||
|
|
|
||
|
|
/* Alloc enough space for the pseudo palette. */
|
||
|
|
info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16,
|
||
|
|
dev);
|
||
|
|
if (!info)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
par = info->par;
|
||
|
|
|
||
|
|
strcpy(info->fix.id, "Geode LX");
|
||
|
|
|
||
|
|
info->fix.type = FB_TYPE_PACKED_PIXELS;
|
||
|
|
info->fix.type_aux = 0;
|
||
|
|
info->fix.xpanstep = 0;
|
||
|
|
info->fix.ypanstep = 0;
|
||
|
|
info->fix.ywrapstep = 0;
|
||
|
|
info->fix.accel = FB_ACCEL_NONE;
|
||
|
|
|
||
|
|
info->var.nonstd = 0;
|
||
|
|
info->var.activate = FB_ACTIVATE_NOW;
|
||
|
|
info->var.height = -1;
|
||
|
|
info->var.width = -1;
|
||
|
|
info->var.accel_flags = 0;
|
||
|
|
info->var.vmode = FB_VMODE_NONINTERLACED;
|
||
|
|
|
||
|
|
info->fbops = &lxfb_ops;
|
||
|
|
info->flags = FBINFO_DEFAULT;
|
||
|
|
info->node = -1;
|
||
|
|
|
||
|
|
info->pseudo_palette = (void *)par + sizeof(struct lxfb_par);
|
||
|
|
|
||
|
|
if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
|
||
|
|
framebuffer_release(info);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
info->var.grayscale = 0;
|
||
|
|
|
||
|
|
return info;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __maybe_unused lxfb_suspend(struct device *dev)
|
||
|
|
{
|
||
|
|
struct fb_info *info = dev_get_drvdata(dev);
|
||
|
|
|
||
|
|
console_lock();
|
||
|
|
lx_powerdown(info);
|
||
|
|
fb_set_suspend(info, 1);
|
||
|
|
console_unlock();
|
||
|
|
|
||
|
|
/* there's no point in setting PCI states; we emulate PCI, so
|
||
|
|
* we don't end up getting power savings anyways */
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __maybe_unused lxfb_resume(struct device *dev)
|
||
|
|
{
|
||
|
|
struct fb_info *info = dev_get_drvdata(dev);
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
console_lock();
|
||
|
|
ret = lx_powerup(info);
|
||
|
|
if (ret) {
|
||
|
|
printk(KERN_ERR "lxfb: power up failed!\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
fb_set_suspend(info, 0);
|
||
|
|
console_unlock();
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
||
|
|
{
|
||
|
|
struct lxfb_par *par;
|
||
|
|
struct fb_info *info;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
struct fb_videomode *modedb_ptr;
|
||
|
|
unsigned int modedb_size;
|
||
|
|
|
||
|
|
ret = aperture_remove_conflicting_pci_devices(pdev, "lxfb");
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
info = lxfb_init_fbinfo(&pdev->dev);
|
||
|
|
|
||
|
|
if (info == NULL)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
par = info->par;
|
||
|
|
|
||
|
|
ret = lxfb_map_video_memory(info, pdev);
|
||
|
|
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_err(&pdev->dev,
|
||
|
|
"failed to map frame buffer or controller registers\n");
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set up the desired outputs */
|
||
|
|
|
||
|
|
par->output = 0;
|
||
|
|
par->output |= (nopanel) ? 0 : OUTPUT_PANEL;
|
||
|
|
par->output |= (nocrt) ? 0 : OUTPUT_CRT;
|
||
|
|
|
||
|
|
/* Set up the mode database */
|
||
|
|
|
||
|
|
get_modedb(&modedb_ptr, &modedb_size);
|
||
|
|
ret = fb_find_mode(&info->var, info, mode_option,
|
||
|
|
modedb_ptr, modedb_size, NULL, 16);
|
||
|
|
|
||
|
|
if (ret == 0 || ret == 4) {
|
||
|
|
dev_err(&pdev->dev, "could not find valid video mode\n");
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Clear the screen of garbage, unless noclear was specified,
|
||
|
|
* in which case we assume the user knows what he is doing */
|
||
|
|
|
||
|
|
if (!noclear)
|
||
|
|
memset_io(info->screen_base, 0, info->fix.smem_len);
|
||
|
|
|
||
|
|
/* Set the mode */
|
||
|
|
|
||
|
|
lxfb_check_var(&info->var, info);
|
||
|
|
lxfb_set_par(info);
|
||
|
|
|
||
|
|
pm_set_vt_switch(vt_switch);
|
||
|
|
|
||
|
|
if (register_framebuffer(info) < 0) {
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
pci_set_drvdata(pdev, info);
|
||
|
|
fb_info(info, "%s frame buffer device\n", info->fix.id);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err:
|
||
|
|
if (info->screen_base) {
|
||
|
|
iounmap(info->screen_base);
|
||
|
|
pci_release_region(pdev, 0);
|
||
|
|
}
|
||
|
|
if (par->gp_regs) {
|
||
|
|
iounmap(par->gp_regs);
|
||
|
|
pci_release_region(pdev, 1);
|
||
|
|
}
|
||
|
|
if (par->dc_regs) {
|
||
|
|
iounmap(par->dc_regs);
|
||
|
|
pci_release_region(pdev, 2);
|
||
|
|
}
|
||
|
|
if (par->vp_regs) {
|
||
|
|
iounmap(par->vp_regs);
|
||
|
|
pci_release_region(pdev, 3);
|
||
|
|
}
|
||
|
|
|
||
|
|
fb_dealloc_cmap(&info->cmap);
|
||
|
|
framebuffer_release(info);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void lxfb_remove(struct pci_dev *pdev)
|
||
|
|
{
|
||
|
|
struct fb_info *info = pci_get_drvdata(pdev);
|
||
|
|
struct lxfb_par *par = info->par;
|
||
|
|
|
||
|
|
unregister_framebuffer(info);
|
||
|
|
|
||
|
|
iounmap(info->screen_base);
|
||
|
|
pci_release_region(pdev, 0);
|
||
|
|
|
||
|
|
iounmap(par->gp_regs);
|
||
|
|
pci_release_region(pdev, 1);
|
||
|
|
|
||
|
|
iounmap(par->dc_regs);
|
||
|
|
pci_release_region(pdev, 2);
|
||
|
|
|
||
|
|
iounmap(par->vp_regs);
|
||
|
|
pci_release_region(pdev, 3);
|
||
|
|
|
||
|
|
fb_dealloc_cmap(&info->cmap);
|
||
|
|
framebuffer_release(info);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct pci_device_id lxfb_id_table[] = {
|
||
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) },
|
||
|
|
{ 0, }
|
||
|
|
};
|
||
|
|
|
||
|
|
MODULE_DEVICE_TABLE(pci, lxfb_id_table);
|
||
|
|
|
||
|
|
static const struct dev_pm_ops lxfb_pm_ops = {
|
||
|
|
#ifdef CONFIG_PM_SLEEP
|
||
|
|
.suspend = lxfb_suspend,
|
||
|
|
.resume = lxfb_resume,
|
||
|
|
.freeze = NULL,
|
||
|
|
.thaw = lxfb_resume,
|
||
|
|
.poweroff = NULL,
|
||
|
|
.restore = lxfb_resume,
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct pci_driver lxfb_driver = {
|
||
|
|
.name = "lxfb",
|
||
|
|
.id_table = lxfb_id_table,
|
||
|
|
.probe = lxfb_probe,
|
||
|
|
.remove = lxfb_remove,
|
||
|
|
.driver.pm = &lxfb_pm_ops,
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifndef MODULE
|
||
|
|
static int __init lxfb_setup(char *options)
|
||
|
|
{
|
||
|
|
char *opt;
|
||
|
|
|
||
|
|
if (!options || !*options)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
while ((opt = strsep(&options, ",")) != NULL) {
|
||
|
|
if (!*opt)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if (!strcmp(opt, "noclear"))
|
||
|
|
noclear = 1;
|
||
|
|
else if (!strcmp(opt, "nopanel"))
|
||
|
|
nopanel = 1;
|
||
|
|
else if (!strcmp(opt, "nocrt"))
|
||
|
|
nocrt = 1;
|
||
|
|
else
|
||
|
|
mode_option = opt;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static int __init lxfb_init(void)
|
||
|
|
{
|
||
|
|
#ifndef MODULE
|
||
|
|
char *option = NULL;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (fb_modesetting_disabled("lxfb"))
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
#ifndef MODULE
|
||
|
|
if (fb_get_options("lxfb", &option))
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
lxfb_setup(option);
|
||
|
|
#endif
|
||
|
|
return pci_register_driver(&lxfb_driver);
|
||
|
|
}
|
||
|
|
static void __exit lxfb_cleanup(void)
|
||
|
|
{
|
||
|
|
pci_unregister_driver(&lxfb_driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(lxfb_init);
|
||
|
|
module_exit(lxfb_cleanup);
|
||
|
|
|
||
|
|
module_param(mode_option, charp, 0);
|
||
|
|
MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])");
|
||
|
|
|
||
|
|
module_param(vram, int, 0);
|
||
|
|
MODULE_PARM_DESC(vram, "video memory size");
|
||
|
|
|
||
|
|
module_param(vt_switch, int, 0);
|
||
|
|
MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume");
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX");
|
||
|
|
MODULE_LICENSE("GPL");
|