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authorJordan Crouse <jordan.crouse@amd.com>2007-07-31 03:37:40 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-31 18:39:37 -0400
commit3968cb49ab01588cbf6896951780a1e411a0ec38 (patch)
tree3d0b7a0e794d4f7f3b186daaa9bb31697d7a6168 /drivers/video/geode
parentc8facbb62111f9333d00870b0d523f5036822d04 (diff)
lxfb: GEODE: Add framebuffer support for the AMD Geode LX
Add framebuffer support for the AMD Geode LX graphics engine. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/geode')
-rw-r--r--drivers/video/geode/Kconfig15
-rw-r--r--drivers/video/geode/Makefile2
-rw-r--r--drivers/video/geode/lxfb.h199
-rw-r--r--drivers/video/geode/lxfb_core.c621
-rw-r--r--drivers/video/geode/lxfb_ops.c536
5 files changed, 1373 insertions, 0 deletions
diff --git a/drivers/video/geode/Kconfig b/drivers/video/geode/Kconfig
index a814b6c2605c..7608429b3943 100644
--- a/drivers/video/geode/Kconfig
+++ b/drivers/video/geode/Kconfig
@@ -8,6 +8,21 @@ config FB_GEODE
8 Say 'Y' here to allow you to select framebuffer drivers for 8 Say 'Y' here to allow you to select framebuffer drivers for
9 the AMD Geode family of processors. 9 the AMD Geode family of processors.
10 10
11config FB_GEODE_LX
12 tristate "AMD Geode LX framebuffer support (EXPERIMENTAL)"
13 depends on FB && FB_GEODE
14 select FB_CFB_FILLRECT
15 select FB_CFB_COPYAREA
16 select FB_CFB_IMAGEBLIT
17 ---help---
18 Framebuffer driver for the display controller integrated into the
19 AMD Geode LX processors.
20
21 To compile this driver as a module, choose M here: the module will
22 be called lxfb.
23
24 If unsure, say N.
25
11config FB_GEODE_GX 26config FB_GEODE_GX
12 tristate "AMD Geode GX framebuffer support (EXPERIMENTAL)" 27 tristate "AMD Geode GX framebuffer support (EXPERIMENTAL)"
13 depends on FB && FB_GEODE && EXPERIMENTAL 28 depends on FB && FB_GEODE && EXPERIMENTAL
diff --git a/drivers/video/geode/Makefile b/drivers/video/geode/Makefile
index f896565bc312..957304b45fba 100644
--- a/drivers/video/geode/Makefile
+++ b/drivers/video/geode/Makefile
@@ -2,6 +2,8 @@
2 2
3obj-$(CONFIG_FB_GEODE_GX1) += gx1fb.o 3obj-$(CONFIG_FB_GEODE_GX1) += gx1fb.o
4obj-$(CONFIG_FB_GEODE_GX) += gxfb.o 4obj-$(CONFIG_FB_GEODE_GX) += gxfb.o
5obj-$(CONFIG_FB_GEODE_LX) += lxfb.o
5 6
6gx1fb-objs := gx1fb_core.o display_gx1.o video_cs5530.o 7gx1fb-objs := gx1fb_core.o display_gx1.o video_cs5530.o
7gxfb-objs := gxfb_core.o display_gx.o video_gx.o 8gxfb-objs := gxfb_core.o display_gx.o video_gx.o
9lxfb-objs := lxfb_core.o lxfb_ops.o
diff --git a/drivers/video/geode/lxfb.h b/drivers/video/geode/lxfb.h
new file mode 100644
index 000000000000..6c227f9592a5
--- /dev/null
+++ b/drivers/video/geode/lxfb.h
@@ -0,0 +1,199 @@
1#ifndef _LXFB_H_
2#define _LXFB_H_
3
4#include <linux/fb.h>
5
6#define OUTPUT_CRT 0x01
7#define OUTPUT_PANEL 0x02
8
9struct lxfb_par {
10 int output;
11 int panel_width;
12 int panel_height;
13
14 void __iomem *gp_regs;
15 void __iomem *dc_regs;
16 void __iomem *df_regs;
17};
18
19static inline unsigned int lx_get_pitch(unsigned int xres, int bpp)
20{
21 return (((xres * (bpp >> 3)) + 7) & ~7);
22}
23
24void lx_set_mode(struct fb_info *);
25void lx_get_gamma(struct fb_info *, unsigned int *, int);
26void lx_set_gamma(struct fb_info *, unsigned int *, int);
27unsigned int lx_framebuffer_size(void);
28int lx_blank_display(struct fb_info *, int);
29void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int,
30 unsigned int, unsigned int);
31
32/* MSRS */
33
34#define MSR_LX_GLD_CONFIG 0x48002001
35#define MSR_LX_GLCP_DOTPLL 0x4c000015
36#define MSR_LX_DF_PADSEL 0x48000011
37#define MSR_LX_DC_SPARE 0x80000011
38#define MSR_LX_DF_GLCONFIG 0x48002001
39
40#define MSR_LX_GLIU0_P2D_RO0 0x10000029
41
42#define GLCP_DOTPLL_RESET (1 << 0)
43#define GLCP_DOTPLL_BYPASS (1 << 15)
44#define GLCP_DOTPLL_HALFPIX (1 << 24)
45#define GLCP_DOTPLL_LOCK (1 << 25)
46
47#define DF_CONFIG_OUTPUT_MASK 0x38
48#define DF_OUTPUT_PANEL 0x08
49#define DF_OUTPUT_CRT 0x00
50#define DF_SIMULTANEOUS_CRT_AND_FP (1 << 15)
51
52#define DF_DEFAULT_TFT_PAD_SEL_LOW 0xDFFFFFFF
53#define DF_DEFAULT_TFT_PAD_SEL_HIGH 0x0000003F
54
55#define DC_SPARE_DISABLE_CFIFO_HGO 0x00000800
56#define DC_SPARE_VFIFO_ARB_SELECT 0x00000400
57#define DC_SPARE_WM_LPEN_OVRD 0x00000200
58#define DC_SPARE_LOAD_WM_LPEN_MASK 0x00000100
59#define DC_SPARE_DISABLE_INIT_VID_PRI 0x00000080
60#define DC_SPARE_DISABLE_VFIFO_WM 0x00000040
61#define DC_SPARE_DISABLE_CWD_CHECK 0x00000020
62#define DC_SPARE_PIX8_PAN_FIX 0x00000010
63#define DC_SPARE_FIRST_REQ_MASK 0x00000002
64
65/* Registers */
66
67#define DC_UNLOCK 0x00
68#define DC_UNLOCK_CODE 0x4758
69
70#define DC_GENERAL_CFG 0x04
71#define DC_GCFG_DFLE (1 << 0)
72#define DC_GCFG_VIDE (1 << 3)
73#define DC_GCFG_VGAE (1 << 7)
74#define DC_GCFG_CMPE (1 << 5)
75#define DC_GCFG_DECE (1 << 6)
76#define DC_GCFG_FDTY (1 << 17)
77
78#define DC_DISPLAY_CFG 0x08
79#define DC_DCFG_TGEN (1 << 0)
80#define DC_DCFG_GDEN (1 << 3)
81#define DC_DCFG_VDEN (1 << 4)
82#define DC_DCFG_TRUP (1 << 6)
83#define DC_DCFG_DCEN (1 << 24)
84#define DC_DCFG_PALB (1 << 25)
85#define DC_DCFG_VISL (1 << 27)
86
87#define DC_DCFG_16BPP 0x0
88
89#define DC_DCFG_DISP_MODE_MASK 0x00000300
90#define DC_DCFG_DISP_MODE_8BPP 0x00000000
91#define DC_DCFG_DISP_MODE_16BPP 0x00000100
92#define DC_DCFG_DISP_MODE_24BPP 0x00000200
93#define DC_DCFG_DISP_MODE_32BPP 0x00000300
94
95
96#define DC_ARB_CFG 0x0C
97
98#define DC_FB_START 0x10
99#define DC_CB_START 0x14
100#define DC_CURSOR_START 0x18
101
102#define DC_DV_TOP 0x2C
103#define DC_DV_TOP_ENABLE (1 << 0)
104
105#define DC_LINE_SIZE 0x30
106#define DC_GRAPHICS_PITCH 0x34
107#define DC_H_ACTIVE_TIMING 0x40
108#define DC_H_BLANK_TIMING 0x44
109#define DC_H_SYNC_TIMING 0x48
110#define DC_V_ACTIVE_TIMING 0x50
111#define DC_V_BLANK_TIMING 0x54
112#define DC_V_SYNC_TIMING 0x58
113#define DC_FB_ACTIVE 0x5C
114
115#define DC_PAL_ADDRESS 0x70
116#define DC_PAL_DATA 0x74
117
118#define DC_PHY_MEM_OFFSET 0x84
119
120#define DC_DV_CTL 0x88
121#define DC_DV_LINE_SIZE_MASK 0x00000C00
122#define DC_DV_LINE_SIZE_1024 0x00000000
123#define DC_DV_LINE_SIZE_2048 0x00000400
124#define DC_DV_LINE_SIZE_4096 0x00000800
125#define DC_DV_LINE_SIZE_8192 0x00000C00
126
127
128#define DC_GFX_SCALE 0x90
129#define DC_IRQ_FILT_CTL 0x94
130
131
132#define DC_IRQ 0xC8
133#define DC_IRQ_MASK (1 << 0)
134#define DC_VSYNC_IRQ_MASK (1 << 1)
135#define DC_IRQ_STATUS (1 << 20)
136#define DC_VSYNC_IRQ_STATUS (1 << 21)
137
138#define DC_GENLCK_CTRL 0xD4
139#define DC_GENLCK_ENABLE (1 << 18)
140#define DC_GC_ALPHA_FLICK_ENABLE (1 << 25)
141#define DC_GC_FLICKER_FILTER_ENABLE (1 << 24)
142#define DC_GC_FLICKER_FILTER_MASK (0x0F << 28)
143
144#define DC_COLOR_KEY 0xB8
145#define DC_CLR_KEY_ENABLE (1 << 24)
146
147
148#define DC3_DV_LINE_SIZE_MASK 0x00000C00
149#define DC3_DV_LINE_SIZE_1024 0x00000000
150#define DC3_DV_LINE_SIZE_2048 0x00000400
151#define DC3_DV_LINE_SIZE_4096 0x00000800
152#define DC3_DV_LINE_SIZE_8192 0x00000C00
153
154#define DF_VIDEO_CFG 0x0
155#define DF_VCFG_VID_EN (1 << 0)
156
157#define DF_DISPLAY_CFG 0x08
158
159#define DF_DCFG_CRT_EN (1 << 0)
160#define DF_DCFG_HSYNC_EN (1 << 1)
161#define DF_DCFG_VSYNC_EN (1 << 2)
162#define DF_DCFG_DAC_BL_EN (1 << 3)
163#define DF_DCFG_CRT_HSYNC_POL (1 << 8)
164#define DF_DCFG_CRT_VSYNC_POL (1 << 9)
165#define DF_DCFG_GV_PAL_BYP (1 << 21)
166
167#define DF_DCFG_CRT_SYNC_SKW_INIT 0x10000
168#define DF_DCFG_CRT_SYNC_SKW_MASK 0x1c000
169
170#define DF_DCFG_PWR_SEQ_DLY_INIT 0x80000
171#define DF_DCFG_PWR_SEQ_DLY_MASK 0xe0000
172
173#define DF_MISC 0x50
174
175#define DF_MISC_GAM_BYPASS (1 << 0)
176#define DF_MISC_DAC_PWRDN (1 << 10)
177#define DF_MISC_A_PWRDN (1 << 11)
178
179#define DF_PAR 0x38
180#define DF_PDR 0x40
181#define DF_ALPHA_CONTROL_1 0xD8
182#define DF_VIDEO_REQUEST 0x120
183
184#define DF_PANEL_TIM1 0x400
185#define DF_DEFAULT_TFT_PMTIM1 0x0
186
187#define DF_PANEL_TIM2 0x408
188#define DF_DEFAULT_TFT_PMTIM2 0x08000000
189
190#define DF_FP_PM 0x410
191#define DF_FP_PM_P (1 << 24)
192
193#define DF_DITHER_CONTROL 0x418
194#define DF_DEFAULT_TFT_DITHCTL 0x00000070
195#define GP_BLT_STATUS 0x44
196#define GP_BS_BLT_BUSY (1 << 0)
197#define GP_BS_CB_EMPTY (1 << 4)
198
199#endif
diff --git a/drivers/video/geode/lxfb_core.c b/drivers/video/geode/lxfb_core.c
new file mode 100644
index 000000000000..5e30b40c8c0f
--- /dev/null
+++ b/drivers/video/geode/lxfb_core.c
@@ -0,0 +1,621 @@
1/*
2 * Geode LX framebuffer driver.
3 *
4 * Copyright (C) 2007 Advanced Micro Devices, Inc.
5 * Built from gxfb (which is Copyright (C) 2006 Arcom Control Systems Ltd.)
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 */
12
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/errno.h>
16#include <linux/string.h>
17#include <linux/console.h>
18#include <linux/mm.h>
19#include <linux/slab.h>
20#include <linux/delay.h>
21#include <linux/fb.h>
22#include <linux/init.h>
23#include <linux/pci.h>
24#include <linux/uaccess.h>
25
26#include "lxfb.h"
27
28static char *mode_option;
29static int noclear, nopanel, nocrt;
30static int fbsize;
31
32/* Most of these modes are sorted in ascending order, but
33 * since the first entry in this table is the "default" mode,
34 * we try to make it something sane - 640x480-60 is sane
35 */
36
37const struct fb_videomode geode_modedb[] __initdata = {
38 /* 640x480-60 */
39 { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2,
40 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
41 FB_VMODE_NONINTERLACED, 0 },
42 /* 640x400-70 */
43 { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2,
44 FB_SYNC_HOR_HIGH_ACT,
45 FB_VMODE_NONINTERLACED, 0 },
46 /* 640x480-70 */
47 { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3,
48 0, FB_VMODE_NONINTERLACED, 0 },
49 /* 640x480-72 */
50 { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3,
51 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
52 FB_VMODE_NONINTERLACED, 0 },
53 /* 640x480-75 */
54 { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
55 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
56 FB_VMODE_NONINTERLACED, 0 },
57 /* 640x480-85 */
58 { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3,
59 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
60 FB_VMODE_NONINTERLACED, 0 },
61 /* 640x480-90 */
62 { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3,
63 0, FB_VMODE_NONINTERLACED, 0 },
64 /* 640x480-100 */
65 { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3,
66 0, FB_VMODE_NONINTERLACED, 0 },
67 /* 640x480-60 */
68 { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2,
69 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
70 FB_VMODE_NONINTERLACED, 0 },
71 /* 800x600-56 */
72 { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2,
73 0, FB_VMODE_NONINTERLACED, 0 },
74 /* 800x600-60 */
75 { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4,
76 0, FB_VMODE_NONINTERLACED, 0 },
77 /* 800x600-70 */
78 { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3,
79 0, FB_VMODE_NONINTERLACED, 0 },
80 /* 800x600-72 */
81 { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6,
82 0, FB_VMODE_NONINTERLACED, 0 },
83 /* 800x600-75 */
84 { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3,
85 0, FB_VMODE_NONINTERLACED, 0 },
86 /* 800x600-85 */
87 { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3,
88 0, FB_VMODE_NONINTERLACED, 0 },
89 /* 800x600-90 */
90 { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3,
91 0, FB_VMODE_NONINTERLACED, 0 },
92 /* 800x600-100 */
93 { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3,
94 0, FB_VMODE_NONINTERLACED, 0 },
95 /* 800x600-60 */
96 { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4,
97 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
98 FB_VMODE_NONINTERLACED, 0 },
99 /* 1024x768-60 */
100 { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
101 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
102 FB_VMODE_NONINTERLACED, 0 },
103 /* 1024x768-70 */
104 { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6,
105 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
106 FB_VMODE_NONINTERLACED, 0 },
107 /* 1024x768-72 */
108 { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3,
109 0, FB_VMODE_NONINTERLACED, 0 },
110 /* 1024x768-75 */
111 { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3,
112 0, FB_VMODE_NONINTERLACED, 0 },
113 /* 1024x768-85 */
114 { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3,
115 0, FB_VMODE_NONINTERLACED, 0 },
116 /* 1024x768-90 */
117 { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3,
118 0, FB_VMODE_NONINTERLACED, 0 },
119 /* 1024x768-100 */
120 { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3,
121 0, FB_VMODE_NONINTERLACED, 0 },
122 /* 1024x768-60 */
123 { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
124 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
125 FB_VMODE_NONINTERLACED, 0 },
126 /* 1152x864-60 */
127 { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
128 0, FB_VMODE_NONINTERLACED, 0 },
129 /* 1152x864-70 */
130 { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3,
131 0, FB_VMODE_NONINTERLACED, 0 },
132 /* 1152x864-72 */
133 { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3,
134 0, FB_VMODE_NONINTERLACED, 0 },
135 /* 1152x864-75 */
136 { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
137 0, FB_VMODE_NONINTERLACED, 0 },
138 /* 1152x864-85 */
139 { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3,
140 0, FB_VMODE_NONINTERLACED, 0 },
141 /* 1152x864-90 */
142 { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3,
143 0, FB_VMODE_NONINTERLACED, 0 },
144 /* 1152x864-100 */
145 { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3,
146 0, FB_VMODE_NONINTERLACED, 0 },
147 /* 1152x864-60 */
148 { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
149 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
150 FB_VMODE_NONINTERLACED, 0 },
151 /* 1280x1024-60 */
152 { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
153 0, FB_VMODE_NONINTERLACED, 0 },
154 /* 1280x1024-70 */
155 { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3,
156 0, FB_VMODE_NONINTERLACED, 0 },
157 /* 1280x1024-72 */
158 { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3,
159 0, FB_VMODE_NONINTERLACED, 0 },
160 /* 1280x1024-75 */
161 { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3,
162 0, FB_VMODE_NONINTERLACED, 0 },
163 /* 1280x1024-85 */
164 { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3,
165 0, FB_VMODE_NONINTERLACED, 0 },
166 /* 1280x1024-90 */
167 { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3,
168 0, FB_VMODE_NONINTERLACED, 0 },
169 /* 1280x1024-100 */
170 { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3,
171 0, FB_VMODE_NONINTERLACED, 0 },
172 /* 1280x1024-60 */
173 { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
174 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
175 FB_VMODE_NONINTERLACED, 0 },
176 /* 1600x1200-60 */
177 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
178 0, FB_VMODE_NONINTERLACED, 0 },
179 /* 1600x1200-70 */
180 { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
181 0, FB_VMODE_NONINTERLACED, 0 },
182 /* 1600x1200-72 */
183 { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3,
184 0, FB_VMODE_NONINTERLACED, 0 },
185 /* 1600x1200-75 */
186 { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
187 0, FB_VMODE_NONINTERLACED, 0 },
188 /* 1600x1200-85 */
189 { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
190 0, FB_VMODE_NONINTERLACED, 0 },
191 /* 1600x1200-90 */
192 { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3,
193 0, FB_VMODE_NONINTERLACED, 0 },
194 /* 1600x1200-100 */
195 { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3,
196 0, FB_VMODE_NONINTERLACED, 0 },
197 /* 1600x1200-60 */
198 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
199 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
200 FB_VMODE_NONINTERLACED, 0 },
201 /* 1920x1440-60 */
202 { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3,
203 0, FB_VMODE_NONINTERLACED, 0 },
204 /* 1920x1440-70 */
205 { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3,
206 0, FB_VMODE_NONINTERLACED, 0 },
207 /* 1920x1440-72 */
208 { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3,
209 0, FB_VMODE_NONINTERLACED, 0 },
210 /* 1920x1440-75 */
211 { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
212 0, FB_VMODE_NONINTERLACED, 0 },
213 /* 1920x1440-85 */
214 { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3,
215 0, FB_VMODE_NONINTERLACED, 0 },
216};
217
218static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
219{
220 if (var->xres > 1920 || var->yres > 1440)
221 return -EINVAL;
222
223 if (var->bits_per_pixel == 32) {
224 var->red.offset = 16; var->red.length = 8;
225 var->green.offset = 8; var->green.length = 8;
226 var->blue.offset = 0; var->blue.length = 8;
227 } else if (var->bits_per_pixel == 16) {
228 var->red.offset = 11; var->red.length = 5;
229 var->green.offset = 5; var->green.length = 6;
230 var->blue.offset = 0; var->blue.length = 5;
231 } else if (var->bits_per_pixel == 8) {
232 var->red.offset = 0; var->red.length = 8;
233 var->green.offset = 0; var->green.length = 8;
234 var->blue.offset = 0; var->blue.length = 8;
235 } else
236 return -EINVAL;
237
238 var->transp.offset = 0; var->transp.length = 0;
239
240 /* Enough video memory? */
241 if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres)
242 > info->fix.smem_len)
243 return -EINVAL;
244
245 return 0;
246}
247
248static int lxfb_set_par(struct fb_info *info)
249{
250 if (info->var.bits_per_pixel > 8) {
251 info->fix.visual = FB_VISUAL_TRUECOLOR;
252 fb_dealloc_cmap(&info->cmap);
253 } else {
254 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
255 fb_alloc_cmap(&info->cmap, 1<<info->var.bits_per_pixel, 0);
256 }
257
258 info->fix.line_length = lx_get_pitch(info->var.xres,
259 info->var.bits_per_pixel);
260
261 lx_set_mode(info);
262 return 0;
263}
264
265static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
266{
267 chan &= 0xffff;
268 chan >>= 16 - bf->length;
269 return chan << bf->offset;
270}
271
272static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
273 unsigned blue, unsigned transp,
274 struct fb_info *info)
275{
276 if (info->var.grayscale) {
277 /* grayscale = 0.30*R + 0.59*G + 0.11*B */
278 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
279 }
280
281 /* Truecolor has hardware independent palette */
282 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
283 u32 *pal = info->pseudo_palette;
284 u32 v;
285
286 if (regno >= 16)
287 return -EINVAL;
288
289 v = chan_to_field(red, &info->var.red);
290 v |= chan_to_field(green, &info->var.green);
291 v |= chan_to_field(blue, &info->var.blue);
292
293 pal[regno] = v;
294 } else {
295 if (regno >= 256)
296 return -EINVAL;
297
298 lx_set_palette_reg(info, regno, red, green, blue);
299 }
300
301 return 0;
302}
303
304static int lxfb_blank(int blank_mode, struct fb_info *info)
305{
306 return lx_blank_display(info, blank_mode);
307}
308
309
310static int __init lxfb_map_video_memory(struct fb_info *info,
311 struct pci_dev *dev)
312{
313 struct lxfb_par *par = info->par;
314 int ret;
315
316 ret = pci_enable_device(dev);
317
318 if (ret)
319 return ret;
320
321 ret = pci_request_region(dev, 0, "lxfb-framebuffer");
322
323 if (ret)
324 return ret;
325
326 ret = pci_request_region(dev, 1, "lxfb-gp");
327
328 if (ret)
329 return ret;
330
331 ret = pci_request_region(dev, 2, "lxfb-vg");
332
333 if (ret)
334 return ret;
335
336 ret = pci_request_region(dev, 3, "lxfb-vip");
337
338 if (ret)
339 return ret;
340
341 info->fix.smem_start = pci_resource_start(dev, 0);
342 info->fix.smem_len = fbsize ? fbsize : lx_framebuffer_size();
343
344 info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
345
346 ret = -ENOMEM;
347
348 if (info->screen_base == NULL)
349 return ret;
350
351 par->gp_regs = ioremap(pci_resource_start(dev, 1),
352 pci_resource_len(dev, 1));
353
354 if (par->gp_regs == NULL)
355 return ret;
356
357 par->dc_regs = ioremap(pci_resource_start(dev, 2),
358 pci_resource_len(dev, 2));
359
360 if (par->dc_regs == NULL)
361 return ret;
362
363 par->df_regs = ioremap(pci_resource_start(dev, 3),
364 pci_resource_len(dev, 3));
365
366 if (par->df_regs == NULL)
367 return ret;
368
369 writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK);
370
371 writel(info->fix.smem_start & 0xFF000000,
372 par->dc_regs + DC_PHY_MEM_OFFSET);
373
374 writel(0, par->dc_regs + DC_UNLOCK);
375
376 dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n",
377 info->fix.smem_len / 1024, info->fix.smem_start);
378
379 return 0;
380}
381
382static struct fb_ops lxfb_ops = {
383 .owner = THIS_MODULE,
384 .fb_check_var = lxfb_check_var,
385 .fb_set_par = lxfb_set_par,
386 .fb_setcolreg = lxfb_setcolreg,
387 .fb_blank = lxfb_blank,
388 /* No HW acceleration for now. */
389 .fb_fillrect = cfb_fillrect,
390 .fb_copyarea = cfb_copyarea,
391 .fb_imageblit = cfb_imageblit,
392};
393
394static struct fb_info * __init lxfb_init_fbinfo(struct device *dev)
395{
396 struct lxfb_par *par;
397 struct fb_info *info;
398
399 /* Alloc enough space for the pseudo palette. */
400 info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16,
401 dev);
402 if (!info)
403 return NULL;
404
405 par = info->par;
406
407 strcpy(info->fix.id, "Geode LX");
408
409 info->fix.type = FB_TYPE_PACKED_PIXELS;
410 info->fix.type_aux = 0;
411 info->fix.xpanstep = 0;
412 info->fix.ypanstep = 0;
413 info->fix.ywrapstep = 0;
414 info->fix.accel = FB_ACCEL_NONE;
415
416 info->var.nonstd = 0;
417 info->var.activate = FB_ACTIVATE_NOW;
418 info->var.height = -1;
419 info->var.width = -1;
420 info->var.accel_flags = 0;
421 info->var.vmode = FB_VMODE_NONINTERLACED;
422
423 info->fbops = &lxfb_ops;
424 info->flags = FBINFO_DEFAULT;
425 info->node = -1;
426
427 info->pseudo_palette = (void *)par + sizeof(struct lxfb_par);
428
429 info->var.grayscale = 0;
430
431 return info;
432}
433
434static int __init lxfb_probe(struct pci_dev *pdev,
435 const struct pci_device_id *id)
436{
437 struct lxfb_par *par;
438 struct fb_info *info;
439 int ret;
440
441 struct fb_videomode *modedb_ptr;
442 int modedb_size;
443
444 info = lxfb_init_fbinfo(&pdev->dev);
445
446 if (info == NULL)
447 return -ENOMEM;
448
449 par = info->par;
450
451 ret = lxfb_map_video_memory(info, pdev);
452
453 if (ret < 0) {
454 dev_err(&pdev->dev,
455 "failed to map frame buffer or controller registers\n");
456 goto err;
457 }
458
459 /* Set up the desired outputs */
460
461 par->output = 0;
462 par->output |= (nopanel) ? 0 : OUTPUT_PANEL;
463 par->output |= (nocrt) ? 0 : OUTPUT_CRT;
464
465 /* Set up the mode database */
466
467 modedb_ptr = (struct fb_videomode *) geode_modedb;
468 modedb_size = ARRAY_SIZE(geode_modedb);
469
470 ret = fb_find_mode(&info->var, info, mode_option,
471 modedb_ptr, modedb_size, NULL, 16);
472
473 if (ret == 0 || ret == 4) {
474 dev_err(&pdev->dev, "could not find valid video mode\n");
475 ret = -EINVAL;
476 goto err;
477 }
478
479 /* Clear the screen of garbage, unless noclear was specified,
480 * in which case we assume the user knows what he is doing */
481
482 if (!noclear)
483 memset_io(info->screen_base, 0, info->fix.smem_len);
484
485 /* Set the mode */
486
487 lxfb_check_var(&info->var, info);
488 lxfb_set_par(info);
489
490 if (register_framebuffer(info) < 0) {
491 ret = -EINVAL;
492 goto err;
493 }
494 pci_set_drvdata(pdev, info);
495 printk(KERN_INFO "fb%d: %s frame buffer device\n",
496 info->node, info->fix.id);
497
498 return 0;
499
500err:
501 if (info->screen_base) {
502 iounmap(info->screen_base);
503 pci_release_region(pdev, 0);
504 }
505 if (par->gp_regs) {
506 iounmap(par->gp_regs);
507 pci_release_region(pdev, 1);
508 }
509 if (par->dc_regs) {
510 iounmap(par->dc_regs);
511 pci_release_region(pdev, 2);
512 }
513 if (par->df_regs) {
514 iounmap(par->df_regs);
515 pci_release_region(pdev, 3);
516 }
517
518 if (info)
519 framebuffer_release(info);
520
521 return ret;
522}
523
524static void lxfb_remove(struct pci_dev *pdev)
525{
526 struct fb_info *info = pci_get_drvdata(pdev);
527 struct lxfb_par *par = info->par;
528
529 unregister_framebuffer(info);
530
531 iounmap(info->screen_base);
532 pci_release_region(pdev, 0);
533
534 iounmap(par->gp_regs);
535 pci_release_region(pdev, 1);
536
537 iounmap(par->dc_regs);
538 pci_release_region(pdev, 2);
539
540 iounmap(par->df_regs);
541 pci_release_region(pdev, 3);
542
543 pci_set_drvdata(pdev, NULL);
544 framebuffer_release(info);
545}
546
547static struct pci_device_id lxfb_id_table[] = {
548 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) },
549 { 0, }
550};
551
552MODULE_DEVICE_TABLE(pci, lxfb_id_table);
553
554static struct pci_driver lxfb_driver = {
555 .name = "lxfb",
556 .id_table = lxfb_id_table,
557 .probe = lxfb_probe,
558 .remove = lxfb_remove,
559};
560
561#ifndef MODULE
562static int __init lxfb_setup(char *options)
563{
564 char *opt;
565
566 if (!options || !*options)
567 return 0;
568
569 while (1) {
570 char *opt = strsep(&options, ",");
571
572 if (opt == NULL)
573 break;
574
575 if (!*opt)
576 continue;
577
578 if (!strncmp(opt, "fbsize:", 7))
579 fbsize = simple_strtoul(opt+7, NULL, 0);
580 else if (!strcmp(opt, "noclear"))
581 noclear = 1;
582 else if (!strcmp(opt, "nopanel"))
583 nopanel = 1;
584 else if (!strcmp(opt, "nocrt"))
585 nocrt = 1;
586 else
587 mode_option = opt;
588 }
589
590 return 0;
591}
592#endif
593
594static int __init lxfb_init(void)
595{
596#ifndef MODULE
597 char *option = NULL;
598
599 if (fb_get_options("lxfb", &option))
600 return -ENODEV;
601
602 lxfb_setup(option);
603#endif
604 return pci_register_driver(&lxfb_driver);
605}
606static void __exit lxfb_cleanup(void)
607{
608 pci_unregister_driver(&lxfb_driver);
609}
610
611module_init(lxfb_init);
612module_exit(lxfb_cleanup);
613
614module_param(mode_option, charp, 0);
615MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])");
616
617module_param(fbsize, int, 0);
618MODULE_PARM_DESC(fbsize, "video memory size");
619
620MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX");
621MODULE_LICENSE("GPL");
diff --git a/drivers/video/geode/lxfb_ops.c b/drivers/video/geode/lxfb_ops.c
new file mode 100644
index 000000000000..4fbc99be96ef
--- /dev/null
+++ b/drivers/video/geode/lxfb_ops.c
@@ -0,0 +1,536 @@
1/* Geode LX framebuffer driver
2 *
3 * Copyright (C) 2006-2007, Advanced Micro Devices,Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
9 */
10
11#include <linux/kernel.h>
12#include <linux/errno.h>
13#include <linux/fb.h>
14#include <linux/uaccess.h>
15#include <linux/delay.h>
16
17#include "lxfb.h"
18
19/* TODO
20 * Support panel scaling
21 * Add acceleration
22 * Add support for interlacing (TV out)
23 * Support compression
24 */
25
26/* This is the complete list of PLL frequencies that we can set -
27 * we will choose the closest match to the incoming clock.
28 * freq is the frequency of the dotclock * 1000 (for example,
29 * 24823 = 24.983 Mhz).
30 * pllval is the corresponding PLL value
31*/
32
33static const struct {
34 unsigned int pllval;
35 unsigned int freq;
36} pll_table[] = {
37 { 0x000031AC, 24923 },
38 { 0x0000215D, 25175 },
39 { 0x00001087, 27000 },
40 { 0x0000216C, 28322 },
41 { 0x0000218D, 28560 },
42 { 0x000010C9, 31200 },
43 { 0x00003147, 31500 },
44 { 0x000010A7, 33032 },
45 { 0x00002159, 35112 },
46 { 0x00004249, 35500 },
47 { 0x00000057, 36000 },
48 { 0x0000219A, 37889 },
49 { 0x00002158, 39168 },
50 { 0x00000045, 40000 },
51 { 0x00000089, 43163 },
52 { 0x000010E7, 44900 },
53 { 0x00002136, 45720 },
54 { 0x00003207, 49500 },
55 { 0x00002187, 50000 },
56 { 0x00004286, 56250 },
57 { 0x000010E5, 60065 },
58 { 0x00004214, 65000 },
59 { 0x00001105, 68179 },
60 { 0x000031E4, 74250 },
61 { 0x00003183, 75000 },
62 { 0x00004284, 78750 },
63 { 0x00001104, 81600 },
64 { 0x00006363, 94500 },
65 { 0x00005303, 97520 },
66 { 0x00002183, 100187 },
67 { 0x00002122, 101420 },
68 { 0x00001081, 108000 },
69 { 0x00006201, 113310 },
70 { 0x00000041, 119650 },
71 { 0x000041A1, 129600 },
72 { 0x00002182, 133500 },
73 { 0x000041B1, 135000 },
74 { 0x00000051, 144000 },
75 { 0x000041E1, 148500 },
76 { 0x000062D1, 157500 },
77 { 0x000031A1, 162000 },
78 { 0x00000061, 169203 },
79 { 0x00004231, 172800 },
80 { 0x00002151, 175500 },
81 { 0x000052E1, 189000 },
82 { 0x00000071, 192000 },
83 { 0x00003201, 198000 },
84 { 0x00004291, 202500 },
85 { 0x00001101, 204750 },
86 { 0x00007481, 218250 },
87 { 0x00004170, 229500 },
88 { 0x00006210, 234000 },
89 { 0x00003140, 251182 },
90 { 0x00006250, 261000 },
91 { 0x000041C0, 278400 },
92 { 0x00005220, 280640 },
93 { 0x00000050, 288000 },
94 { 0x000041E0, 297000 },
95 { 0x00002130, 320207 }
96};
97
98
99static void lx_set_dotpll(u32 pllval)
100{
101 u32 dotpll_lo, dotpll_hi;
102 int i;
103
104 rdmsr(MSR_LX_GLCP_DOTPLL, dotpll_lo, dotpll_hi);
105
106 if ((dotpll_lo & GLCP_DOTPLL_LOCK) && (dotpll_hi == pllval))
107 return;
108
109 dotpll_hi = pllval;
110 dotpll_lo &= ~(GLCP_DOTPLL_BYPASS | GLCP_DOTPLL_HALFPIX);
111 dotpll_lo |= GLCP_DOTPLL_RESET;
112
113 wrmsr(MSR_LX_GLCP_DOTPLL, dotpll_lo, dotpll_hi);
114
115 /* Wait 100us for the PLL to lock */
116
117 udelay(100);
118
119 /* Now, loop for the lock bit */
120
121 for (i = 0; i < 1000; i++) {
122 rdmsr(MSR_LX_GLCP_DOTPLL, dotpll_lo, dotpll_hi);
123 if (dotpll_lo & GLCP_DOTPLL_LOCK)
124 break;
125 }
126
127 /* Clear the reset bit */
128
129 dotpll_lo &= ~GLCP_DOTPLL_RESET;
130 wrmsr(MSR_LX_GLCP_DOTPLL, dotpll_lo, dotpll_hi);
131}
132
133/* Set the clock based on the frequency specified by the current mode */
134
135static void lx_set_clock(struct fb_info *info)
136{
137 unsigned int diff, min, best = 0;
138 unsigned int freq, i;
139
140 freq = (unsigned int) (0x3b9aca00 / info->var.pixclock);
141
142 min = abs(pll_table[0].freq - freq);
143
144 for (i = 0; i < ARRAY_SIZE(pll_table); i++) {
145 diff = abs(pll_table[i].freq - freq);
146 if (diff < min) {
147 min = diff;
148 best = i;
149 }
150 }
151
152 lx_set_dotpll(pll_table[best].pllval & 0x7FFF);
153}
154
155static void lx_graphics_disable(struct fb_info *info)
156{
157 struct lxfb_par *par = info->par;
158 unsigned int val, gcfg;
159
160 /* Note: This assumes that the video is in a quitet state */
161
162 writel(0, par->df_regs + DF_ALPHA_CONTROL_1);
163 writel(0, par->df_regs + DF_ALPHA_CONTROL_1 + 32);
164 writel(0, par->df_regs + DF_ALPHA_CONTROL_1 + 64);
165
166 /* Turn off the VGA and video enable */
167 val = readl (par->dc_regs + DC_GENERAL_CFG) &
168 ~(DC_GCFG_VGAE | DC_GCFG_VIDE);
169
170 writel(val, par->dc_regs + DC_GENERAL_CFG);
171
172 val = readl(par->df_regs + DF_VIDEO_CFG) & ~DF_VCFG_VID_EN;
173 writel(val, par->df_regs + DF_VIDEO_CFG);
174
175 writel( DC_IRQ_MASK | DC_VSYNC_IRQ_MASK |
176 DC_IRQ_STATUS | DC_VSYNC_IRQ_STATUS,
177 par->dc_regs + DC_IRQ);
178
179 val = readl(par->dc_regs + DC_GENLCK_CTRL) & ~DC_GENLCK_ENABLE;
180 writel(val, par->dc_regs + DC_GENLCK_CTRL);
181
182 val = readl(par->dc_regs + DC_COLOR_KEY) & ~DC_CLR_KEY_ENABLE;
183 writel(val & ~DC_CLR_KEY_ENABLE, par->dc_regs + DC_COLOR_KEY);
184
185 /* We don't actually blank the panel, due to the long latency
186 involved with bringing it back */
187
188 val = readl(par->df_regs + DF_MISC) | DF_MISC_DAC_PWRDN;
189 writel(val, par->df_regs + DF_MISC);
190
191 /* Turn off the display */
192
193 val = readl(par->df_regs + DF_DISPLAY_CFG);
194 writel(val & ~(DF_DCFG_CRT_EN | DF_DCFG_HSYNC_EN | DF_DCFG_VSYNC_EN |
195 DF_DCFG_DAC_BL_EN), par->df_regs + DF_DISPLAY_CFG);
196
197 gcfg = readl(par->dc_regs + DC_GENERAL_CFG);
198 gcfg &= ~(DC_GCFG_CMPE | DC_GCFG_DECE);
199 writel(gcfg, par->dc_regs + DC_GENERAL_CFG);
200
201 /* Turn off the TGEN */
202 val = readl(par->dc_regs + DC_DISPLAY_CFG);
203 val &= ~DC_DCFG_TGEN;
204 writel(val, par->dc_regs + DC_DISPLAY_CFG);
205
206 /* Wait 1000 usecs to ensure that the TGEN is clear */
207 udelay(1000);
208
209 /* Turn off the FIFO loader */
210
211 gcfg &= ~DC_GCFG_DFLE;
212 writel(gcfg, par->dc_regs + DC_GENERAL_CFG);
213
214 /* Lastly, wait for the GP to go idle */
215
216 do {
217 val = readl(par->gp_regs + GP_BLT_STATUS);
218 } while ((val & GP_BS_BLT_BUSY) || !(val & GP_BS_CB_EMPTY));
219}
220
221static void lx_graphics_enable(struct fb_info *info)
222{
223 struct lxfb_par *par = info->par;
224 u32 temp, config;
225
226 /* Set the video request register */
227 writel(0, par->df_regs + DF_VIDEO_REQUEST);
228
229 /* Set up the polarities */
230
231 config = readl(par->df_regs + DF_DISPLAY_CFG);
232
233 config &= ~(DF_DCFG_CRT_SYNC_SKW_MASK | DF_DCFG_PWR_SEQ_DLY_MASK |
234 DF_DCFG_CRT_HSYNC_POL | DF_DCFG_CRT_VSYNC_POL);
235
236 config |= (DF_DCFG_CRT_SYNC_SKW_INIT | DF_DCFG_PWR_SEQ_DLY_INIT |
237 DF_DCFG_GV_PAL_BYP);
238
239 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
240 config |= DF_DCFG_CRT_HSYNC_POL;
241
242 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
243 config |= DF_DCFG_CRT_VSYNC_POL;
244
245 if (par->output & OUTPUT_PANEL) {
246 u32 msrlo, msrhi;
247
248 writel(DF_DEFAULT_TFT_PMTIM1,
249 par->df_regs + DF_PANEL_TIM1);
250 writel(DF_DEFAULT_TFT_PMTIM2,
251 par->df_regs + DF_PANEL_TIM2);
252 writel(DF_DEFAULT_TFT_DITHCTL,
253 par->df_regs + DF_DITHER_CONTROL);
254
255 msrlo = DF_DEFAULT_TFT_PAD_SEL_LOW;
256 msrhi = DF_DEFAULT_TFT_PAD_SEL_HIGH;
257
258 wrmsr(MSR_LX_DF_PADSEL, msrlo, msrhi);
259 }
260
261 if (par->output & OUTPUT_CRT) {
262 config |= DF_DCFG_CRT_EN | DF_DCFG_HSYNC_EN |
263 DF_DCFG_VSYNC_EN | DF_DCFG_DAC_BL_EN;
264 }
265
266 writel(config, par->df_regs + DF_DISPLAY_CFG);
267
268 /* Turn the CRT dacs back on */
269
270 if (par->output & OUTPUT_CRT) {
271 temp = readl(par->df_regs + DF_MISC);
272 temp &= ~(DF_MISC_DAC_PWRDN | DF_MISC_A_PWRDN);
273 writel(temp, par->df_regs + DF_MISC);
274 }
275
276 /* Turn the panel on (if it isn't already) */
277
278 if (par->output & OUTPUT_PANEL) {
279 temp = readl(par->df_regs + DF_FP_PM);
280
281 if (!(temp & 0x09))
282 writel(temp | DF_FP_PM_P, par->df_regs + DF_FP_PM);
283 }
284
285 temp = readl(par->df_regs + DF_MISC);
286 temp = readl(par->df_regs + DF_DISPLAY_CFG);
287}
288
289unsigned int lx_framebuffer_size(void)
290{
291 unsigned int val;
292
293 /* The frame buffer size is reported by a VSM in VSA II */
294 /* Virtual Register Class = 0x02 */
295 /* VG_MEM_SIZE (1MB units) = 0x00 */
296
297 outw(0xFC53, 0xAC1C);
298 outw(0x0200, 0xAC1C);
299
300 val = (unsigned int)(inw(0xAC1E)) & 0xFE;
301 return (val << 20);
302}
303
304void lx_set_mode(struct fb_info *info)
305{
306 struct lxfb_par *par = info->par;
307 u64 msrval;
308
309 unsigned int max, dv, val, size;
310
311 unsigned int gcfg, dcfg;
312 int hactive, hblankstart, hsyncstart, hsyncend, hblankend, htotal;
313 int vactive, vblankstart, vsyncstart, vsyncend, vblankend, vtotal;
314
315 /* Unlock the DC registers */
316 writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK);
317
318 lx_graphics_disable(info);
319
320 lx_set_clock(info);
321
322 /* Set output mode */
323
324 rdmsrl(MSR_LX_DF_GLCONFIG, msrval);
325 msrval &= ~DF_CONFIG_OUTPUT_MASK;
326
327 if (par->output & OUTPUT_PANEL) {
328 msrval |= DF_OUTPUT_PANEL;
329
330 if (par->output & OUTPUT_CRT)
331 msrval |= DF_SIMULTANEOUS_CRT_AND_FP;
332 else
333 msrval &= ~DF_SIMULTANEOUS_CRT_AND_FP;
334 } else {
335 msrval |= DF_OUTPUT_CRT;
336 }
337
338 wrmsrl(MSR_LX_DF_GLCONFIG, msrval);
339
340 /* Clear the various buffers */
341 /* FIXME: Adjust for panning here */
342
343 writel(0, par->dc_regs + DC_FB_START);
344 writel(0, par->dc_regs + DC_CB_START);
345 writel(0, par->dc_regs + DC_CURSOR_START);
346
347 /* FIXME: Add support for interlacing */
348 /* FIXME: Add support for scaling */
349
350 val = readl(par->dc_regs + DC_GENLCK_CTRL);
351 val &= ~(DC_GC_ALPHA_FLICK_ENABLE |
352 DC_GC_FLICKER_FILTER_ENABLE | DC_GC_FLICKER_FILTER_MASK);
353
354 /* Default scaling params */
355
356 writel((0x4000 << 16) | 0x4000, par->dc_regs + DC_GFX_SCALE);
357 writel(0, par->dc_regs + DC_IRQ_FILT_CTL);
358 writel(val, par->dc_regs + DC_GENLCK_CTRL);
359
360 /* FIXME: Support compression */
361
362 if (info->fix.line_length > 4096)
363 dv = DC_DV_LINE_SIZE_8192;
364 else if (info->fix.line_length > 2048)
365 dv = DC_DV_LINE_SIZE_4096;
366 else if (info->fix.line_length > 1024)
367 dv = DC_DV_LINE_SIZE_2048;
368 else
369 dv = DC_DV_LINE_SIZE_1024;
370
371 max = info->fix.line_length * info->var.yres;
372 max = (max + 0x3FF) & 0xFFFFFC00;
373
374 writel(max | DC_DV_TOP_ENABLE, par->dc_regs + DC_DV_TOP);
375
376 val = readl(par->dc_regs + DC_DV_CTL) & ~DC_DV_LINE_SIZE_MASK;
377 writel(val | dv, par->dc_regs + DC_DV_CTL);
378
379 size = info->var.xres * (info->var.bits_per_pixel >> 3);
380
381 writel(info->fix.line_length >> 3, par->dc_regs + DC_GRAPHICS_PITCH);
382 writel((size + 7) >> 3, par->dc_regs + DC_LINE_SIZE);
383
384 /* Set default watermark values */
385
386 rdmsrl(MSR_LX_DC_SPARE, msrval);
387
388 msrval &= ~(DC_SPARE_DISABLE_CFIFO_HGO | DC_SPARE_VFIFO_ARB_SELECT |
389 DC_SPARE_LOAD_WM_LPEN_MASK | DC_SPARE_WM_LPEN_OVRD |
390 DC_SPARE_DISABLE_INIT_VID_PRI | DC_SPARE_DISABLE_VFIFO_WM);
391 msrval |= DC_SPARE_DISABLE_VFIFO_WM | DC_SPARE_DISABLE_INIT_VID_PRI;
392 wrmsrl(MSR_LX_DC_SPARE, msrval);
393
394 gcfg = DC_GCFG_DFLE; /* Display fifo enable */
395 gcfg |= 0xB600; /* Set default priority */
396 gcfg |= DC_GCFG_FDTY; /* Set the frame dirty mode */
397
398 dcfg = DC_DCFG_VDEN; /* Enable video data */
399 dcfg |= DC_DCFG_GDEN; /* Enable graphics */
400 dcfg |= DC_DCFG_TGEN; /* Turn on the timing generator */
401 dcfg |= DC_DCFG_TRUP; /* Update timings immediately */
402 dcfg |= DC_DCFG_PALB; /* Palette bypass in > 8 bpp modes */
403 dcfg |= DC_DCFG_VISL;
404 dcfg |= DC_DCFG_DCEN; /* Always center the display */
405
406 /* Set the current BPP mode */
407
408 switch (info->var.bits_per_pixel) {
409 case 8:
410 dcfg |= DC_DCFG_DISP_MODE_8BPP;
411 break;
412
413 case 16:
414 dcfg |= DC_DCFG_DISP_MODE_16BPP | DC_DCFG_16BPP;
415 break;
416
417 case 32:
418 case 24:
419 dcfg |= DC_DCFG_DISP_MODE_24BPP;
420 break;
421 }
422
423 /* Now - set up the timings */
424
425 hactive = info->var.xres;
426 hblankstart = hactive;
427 hsyncstart = hblankstart + info->var.right_margin;
428 hsyncend = hsyncstart + info->var.hsync_len;
429 hblankend = hsyncend + info->var.left_margin;
430 htotal = hblankend;
431
432 vactive = info->var.yres;
433 vblankstart = vactive;
434 vsyncstart = vblankstart + info->var.lower_margin;
435 vsyncend = vsyncstart + info->var.vsync_len;
436 vblankend = vsyncend + info->var.upper_margin;
437 vtotal = vblankend;
438
439 writel((hactive - 1) | ((htotal - 1) << 16),
440 par->dc_regs + DC_H_ACTIVE_TIMING);
441 writel((hblankstart - 1) | ((hblankend - 1) << 16),
442 par->dc_regs + DC_H_BLANK_TIMING);
443 writel((hsyncstart - 1) | ((hsyncend - 1) << 16),
444 par->dc_regs + DC_H_SYNC_TIMING);
445
446 writel((vactive - 1) | ((vtotal - 1) << 16),
447 par->dc_regs + DC_V_ACTIVE_TIMING);
448
449 writel((vblankstart - 1) | ((vblankend - 1) << 16),
450 par->dc_regs + DC_V_BLANK_TIMING);
451
452 writel((vsyncstart - 1) | ((vsyncend - 1) << 16),
453 par->dc_regs + DC_V_SYNC_TIMING);
454
455 writel( (info->var.xres - 1) << 16 | (info->var.yres - 1),
456 par->dc_regs + DC_FB_ACTIVE);
457
458 /* And re-enable the graphics output */
459 lx_graphics_enable(info);
460
461 /* Write the two main configuration registers */
462 writel(dcfg, par->dc_regs + DC_DISPLAY_CFG);
463 writel(0, par->dc_regs + DC_ARB_CFG);
464 writel(gcfg, par->dc_regs + DC_GENERAL_CFG);
465
466 /* Lock the DC registers */
467 writel(0, par->dc_regs + DC_UNLOCK);
468}
469
470void lx_set_palette_reg(struct fb_info *info, unsigned regno,
471 unsigned red, unsigned green, unsigned blue)
472{
473 struct lxfb_par *par = info->par;
474 int val;
475
476 /* Hardware palette is in RGB 8-8-8 format. */
477
478 val = (red << 8) & 0xff0000;
479 val |= (green) & 0x00ff00;
480 val |= (blue >> 8) & 0x0000ff;
481
482 writel(regno, par->dc_regs + DC_PAL_ADDRESS);
483 writel(val, par->dc_regs + DC_PAL_DATA);
484}
485
486int lx_blank_display(struct fb_info *info, int blank_mode)
487{
488 struct lxfb_par *par = info->par;
489 u32 dcfg, fp_pm;
490 int blank, hsync, vsync;
491
492 /* CRT power saving modes. */
493 switch (blank_mode) {
494 case FB_BLANK_UNBLANK:
495 blank = 0; hsync = 1; vsync = 1;
496 break;
497 case FB_BLANK_NORMAL:
498 blank = 1; hsync = 1; vsync = 1;
499 break;
500 case FB_BLANK_VSYNC_SUSPEND:
501 blank = 1; hsync = 1; vsync = 0;
502 break;
503 case FB_BLANK_HSYNC_SUSPEND:
504 blank = 1; hsync = 0; vsync = 1;
505 break;
506 case FB_BLANK_POWERDOWN:
507 blank = 1; hsync = 0; vsync = 0;
508 break;
509 default:
510 return -EINVAL;
511 }
512
513 dcfg = readl(par->df_regs + DF_DISPLAY_CFG);
514 dcfg &= ~(DF_DCFG_DAC_BL_EN
515 | DF_DCFG_HSYNC_EN | DF_DCFG_VSYNC_EN);
516 if (!blank)
517 dcfg |= DF_DCFG_DAC_BL_EN;
518 if (hsync)
519 dcfg |= DF_DCFG_HSYNC_EN;
520 if (vsync)
521 dcfg |= DF_DCFG_VSYNC_EN;
522 writel(dcfg, par->df_regs + DF_DISPLAY_CFG);
523
524 /* Power on/off flat panel */
525
526 if (par->output & OUTPUT_PANEL) {
527 fp_pm = readl(par->df_regs + DF_FP_PM);
528 if (blank_mode == FB_BLANK_POWERDOWN)
529 fp_pm &= ~DF_FP_PM_P;
530 else
531 fp_pm |= DF_FP_PM_P;
532 writel(fp_pm, par->df_regs + DF_FP_PM);
533 }
534
535 return 0;
536}
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-29 01:23:47 -0400