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-rw-r--r--drivers/video/fbdev/savage/Makefile9
-rw-r--r--drivers/video/fbdev/savage/savagefb-i2c.c241
-rw-r--r--drivers/video/fbdev/savage/savagefb.h415
-rw-r--r--drivers/video/fbdev/savage/savagefb_accel.c137
-rw-r--r--drivers/video/fbdev/savage/savagefb_driver.c2571
5 files changed, 3373 insertions, 0 deletions
diff --git a/drivers/video/fbdev/savage/Makefile b/drivers/video/fbdev/savage/Makefile
new file mode 100644
index 000000000000..e09770fff8ea
--- /dev/null
+++ b/drivers/video/fbdev/savage/Makefile
@@ -0,0 +1,9 @@
1#
2# Makefile for the S3 Savage framebuffer driver
3#
4
5obj-$(CONFIG_FB_SAVAGE) += savagefb.o
6
7savagefb-y += savagefb_driver.o
8savagefb-$(CONFIG_FB_SAVAGE_I2C) += savagefb-i2c.o
9savagefb-$(CONFIG_FB_SAVAGE_ACCEL) += savagefb_accel.o
diff --git a/drivers/video/fbdev/savage/savagefb-i2c.c b/drivers/video/fbdev/savage/savagefb-i2c.c
new file mode 100644
index 000000000000..80fa87e2ae2f
--- /dev/null
+++ b/drivers/video/fbdev/savage/savagefb-i2c.c
@@ -0,0 +1,241 @@
1/*
2 * linux/drivers/video/savage/savagefb-i2c.c - S3 Savage DDC2
3 *
4 * Copyright 2004 Antonino A. Daplas <adaplas @pol.net>
5 *
6 * Based partly on rivafb-i2c.c
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file COPYING in the main directory of this archive
10 * for more details.
11 */
12
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/delay.h>
16#include <linux/gfp.h>
17#include <linux/pci.h>
18#include <linux/fb.h>
19
20#include <asm/io.h>
21#include "savagefb.h"
22
23#define SAVAGE_DDC 0x50
24
25#define VGA_CR_IX 0x3d4
26#define VGA_CR_DATA 0x3d5
27
28#define CR_SERIAL1 0xa0 /* I2C serial communications interface */
29#define MM_SERIAL1 0xff20
30#define CR_SERIAL2 0xb1 /* DDC2 monitor communications interface */
31
32/* based on vt8365 documentation */
33#define PROSAVAGE_I2C_ENAB 0x10
34#define PROSAVAGE_I2C_SCL_OUT 0x01
35#define PROSAVAGE_I2C_SDA_OUT 0x02
36#define PROSAVAGE_I2C_SCL_IN 0x04
37#define PROSAVAGE_I2C_SDA_IN 0x08
38
39#define SAVAGE4_I2C_ENAB 0x00000020
40#define SAVAGE4_I2C_SCL_OUT 0x00000001
41#define SAVAGE4_I2C_SDA_OUT 0x00000002
42#define SAVAGE4_I2C_SCL_IN 0x00000008
43#define SAVAGE4_I2C_SDA_IN 0x00000010
44
45static void savage4_gpio_setscl(void *data, int val)
46{
47 struct savagefb_i2c_chan *chan = data;
48 unsigned int r;
49
50 r = readl(chan->ioaddr + chan->reg);
51 if(val)
52 r |= SAVAGE4_I2C_SCL_OUT;
53 else
54 r &= ~SAVAGE4_I2C_SCL_OUT;
55 writel(r, chan->ioaddr + chan->reg);
56 readl(chan->ioaddr + chan->reg); /* flush posted write */
57}
58
59static void savage4_gpio_setsda(void *data, int val)
60{
61 struct savagefb_i2c_chan *chan = data;
62
63 unsigned int r;
64 r = readl(chan->ioaddr + chan->reg);
65 if(val)
66 r |= SAVAGE4_I2C_SDA_OUT;
67 else
68 r &= ~SAVAGE4_I2C_SDA_OUT;
69 writel(r, chan->ioaddr + chan->reg);
70 readl(chan->ioaddr + chan->reg); /* flush posted write */
71}
72
73static int savage4_gpio_getscl(void *data)
74{
75 struct savagefb_i2c_chan *chan = data;
76
77 return (0 != (readl(chan->ioaddr + chan->reg) & SAVAGE4_I2C_SCL_IN));
78}
79
80static int savage4_gpio_getsda(void *data)
81{
82 struct savagefb_i2c_chan *chan = data;
83
84 return (0 != (readl(chan->ioaddr + chan->reg) & SAVAGE4_I2C_SDA_IN));
85}
86
87static void prosavage_gpio_setscl(void* data, int val)
88{
89 struct savagefb_i2c_chan *chan = data;
90 u32 r;
91
92 r = VGArCR(chan->reg, chan->par);
93 r |= PROSAVAGE_I2C_ENAB;
94 if (val) {
95 r |= PROSAVAGE_I2C_SCL_OUT;
96 } else {
97 r &= ~PROSAVAGE_I2C_SCL_OUT;
98 }
99
100 VGAwCR(chan->reg, r, chan->par);
101}
102
103static void prosavage_gpio_setsda(void* data, int val)
104{
105 struct savagefb_i2c_chan *chan = data;
106 unsigned int r;
107
108 r = VGArCR(chan->reg, chan->par);
109 r |= PROSAVAGE_I2C_ENAB;
110 if (val) {
111 r |= PROSAVAGE_I2C_SDA_OUT;
112 } else {
113 r &= ~PROSAVAGE_I2C_SDA_OUT;
114 }
115
116 VGAwCR(chan->reg, r, chan->par);
117}
118
119static int prosavage_gpio_getscl(void* data)
120{
121 struct savagefb_i2c_chan *chan = data;
122
123 return (VGArCR(chan->reg, chan->par) & PROSAVAGE_I2C_SCL_IN) ? 1 : 0;
124}
125
126static int prosavage_gpio_getsda(void* data)
127{
128 struct savagefb_i2c_chan *chan = data;
129
130 return (VGArCR(chan->reg, chan->par) & PROSAVAGE_I2C_SDA_IN) ? 1 : 0;
131}
132
133static int savage_setup_i2c_bus(struct savagefb_i2c_chan *chan,
134 const char *name)
135{
136 int rc = 0;
137
138 if (chan->par) {
139 strcpy(chan->adapter.name, name);
140 chan->adapter.owner = THIS_MODULE;
141 chan->adapter.algo_data = &chan->algo;
142 chan->adapter.dev.parent = &chan->par->pcidev->dev;
143 chan->algo.udelay = 10;
144 chan->algo.timeout = 20;
145 chan->algo.data = chan;
146
147 i2c_set_adapdata(&chan->adapter, chan);
148
149 /* Raise SCL and SDA */
150 chan->algo.setsda(chan, 1);
151 chan->algo.setscl(chan, 1);
152 udelay(20);
153
154 rc = i2c_bit_add_bus(&chan->adapter);
155
156 if (rc == 0)
157 dev_dbg(&chan->par->pcidev->dev,
158 "I2C bus %s registered.\n", name);
159 else
160 dev_warn(&chan->par->pcidev->dev,
161 "Failed to register I2C bus %s.\n", name);
162 }
163
164 return rc;
165}
166
167void savagefb_create_i2c_busses(struct fb_info *info)
168{
169 struct savagefb_par *par = info->par;
170 par->chan.par = par;
171
172 switch (par->chip) {
173 case S3_PROSAVAGE:
174 case S3_PROSAVAGEDDR:
175 case S3_TWISTER:
176 par->chan.reg = CR_SERIAL2;
177 par->chan.ioaddr = par->mmio.vbase;
178 par->chan.algo.setsda = prosavage_gpio_setsda;
179 par->chan.algo.setscl = prosavage_gpio_setscl;
180 par->chan.algo.getsda = prosavage_gpio_getsda;
181 par->chan.algo.getscl = prosavage_gpio_getscl;
182 break;
183 case S3_SAVAGE4:
184 par->chan.reg = CR_SERIAL1;
185 if (par->pcidev->revision > 1 && !(VGArCR(0xa6, par) & 0x40))
186 par->chan.reg = CR_SERIAL2;
187 par->chan.ioaddr = par->mmio.vbase;
188 par->chan.algo.setsda = prosavage_gpio_setsda;
189 par->chan.algo.setscl = prosavage_gpio_setscl;
190 par->chan.algo.getsda = prosavage_gpio_getsda;
191 par->chan.algo.getscl = prosavage_gpio_getscl;
192 break;
193 case S3_SAVAGE2000:
194 par->chan.reg = MM_SERIAL1;
195 par->chan.ioaddr = par->mmio.vbase;
196 par->chan.algo.setsda = savage4_gpio_setsda;
197 par->chan.algo.setscl = savage4_gpio_setscl;
198 par->chan.algo.getsda = savage4_gpio_getsda;
199 par->chan.algo.getscl = savage4_gpio_getscl;
200 break;
201 default:
202 par->chan.par = NULL;
203 }
204
205 savage_setup_i2c_bus(&par->chan, "SAVAGE DDC2");
206}
207
208void savagefb_delete_i2c_busses(struct fb_info *info)
209{
210 struct savagefb_par *par = info->par;
211
212 if (par->chan.par)
213 i2c_del_adapter(&par->chan.adapter);
214
215 par->chan.par = NULL;
216}
217
218int savagefb_probe_i2c_connector(struct fb_info *info, u8 **out_edid)
219{
220 struct savagefb_par *par = info->par;
221 u8 *edid;
222
223 if (par->chan.par)
224 edid = fb_ddc_read(&par->chan.adapter);
225 else
226 edid = NULL;
227
228 if (!edid) {
229 /* try to get from firmware */
230 const u8 *e = fb_firmware_edid(info->device);
231
232 if (e)
233 edid = kmemdup(e, EDID_LENGTH, GFP_KERNEL);
234 }
235
236 *out_edid = edid;
237
238 return (edid) ? 0 : 1;
239}
240
241MODULE_LICENSE("GPL");
diff --git a/drivers/video/fbdev/savage/savagefb.h b/drivers/video/fbdev/savage/savagefb.h
new file mode 100644
index 000000000000..dcaab9012ca2
--- /dev/null
+++ b/drivers/video/fbdev/savage/savagefb.h
@@ -0,0 +1,415 @@
1/*
2 * linux/drivers/video/savagefb.h -- S3 Savage Framebuffer Driver
3 *
4 * Copyright (c) 2001 Denis Oliver Kropp <dok@convergence.de>
5 *
6 * This file is subject to the terms and conditions of the GNU General
7 * Public License. See the file COPYING in the main directory of this
8 * archive for more details.
9 */
10
11
12#ifndef __SAVAGEFB_H__
13#define __SAVAGEFB_H__
14
15#include <linux/i2c.h>
16#include <linux/i2c-algo-bit.h>
17#include <linux/mutex.h>
18#include <video/vga.h>
19#include "../edid.h"
20
21#ifdef SAVAGEFB_DEBUG
22# define DBG(x) printk (KERN_DEBUG "savagefb: %s\n", (x));
23#else
24# define DBG(x)
25# define SavagePrintRegs(...)
26#endif
27
28
29#define PCI_CHIP_SAVAGE4 0x8a22
30#define PCI_CHIP_SAVAGE3D 0x8a20
31#define PCI_CHIP_SAVAGE3D_MV 0x8a21
32#define PCI_CHIP_SAVAGE2000 0x9102
33#define PCI_CHIP_SAVAGE_MX_MV 0x8c10
34#define PCI_CHIP_SAVAGE_MX 0x8c11
35#define PCI_CHIP_SAVAGE_IX_MV 0x8c12
36#define PCI_CHIP_SAVAGE_IX 0x8c13
37#define PCI_CHIP_PROSAVAGE_PM 0x8a25
38#define PCI_CHIP_PROSAVAGE_KM 0x8a26
39#define PCI_CHIP_S3TWISTER_P 0x8d01
40#define PCI_CHIP_S3TWISTER_K 0x8d02
41#define PCI_CHIP_PROSAVAGE_DDR 0x8d03
42#define PCI_CHIP_PROSAVAGE_DDRK 0x8d04
43#define PCI_CHIP_SUPSAV_MX128 0x8c22
44#define PCI_CHIP_SUPSAV_MX64 0x8c24
45#define PCI_CHIP_SUPSAV_MX64C 0x8c26
46#define PCI_CHIP_SUPSAV_IX128SDR 0x8c2a
47#define PCI_CHIP_SUPSAV_IX128DDR 0x8c2b
48#define PCI_CHIP_SUPSAV_IX64SDR 0x8c2c
49#define PCI_CHIP_SUPSAV_IX64DDR 0x8c2d
50#define PCI_CHIP_SUPSAV_IXCSDR 0x8c2e
51#define PCI_CHIP_SUPSAV_IXCDDR 0x8c2f
52
53
54#define S3_SAVAGE_SERIES(chip) ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE2000))
55
56#define S3_SAVAGE3D_SERIES(chip) ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE_MX))
57
58#define S3_SAVAGE4_SERIES(chip) ((chip>=S3_SAVAGE4) && (chip<=S3_PROSAVAGEDDR))
59
60#define S3_SAVAGE_MOBILE_SERIES(chip) ((chip==S3_SAVAGE_MX) || (chip==S3_SUPERSAVAGE))
61
62#define S3_MOBILE_TWISTER_SERIES(chip) ((chip==S3_TWISTER) || (chip==S3_PROSAVAGEDDR))
63
64/* Chip tags. These are used to group the adapters into
65 * related families.
66 */
67
68typedef enum {
69 S3_UNKNOWN = 0,
70 S3_SAVAGE3D,
71 S3_SAVAGE_MX,
72 S3_SAVAGE4,
73 S3_PROSAVAGE,
74 S3_TWISTER,
75 S3_PROSAVAGEDDR,
76 S3_SUPERSAVAGE,
77 S3_SAVAGE2000,
78 S3_LAST
79} savage_chipset;
80
81#define BIOS_BSIZE 1024
82#define BIOS_BASE 0xc0000
83
84#define SAVAGE_NEWMMIO_REGBASE_S3 0x1000000 /* 16MB */
85#define SAVAGE_NEWMMIO_REGBASE_S4 0x0000000
86#define SAVAGE_NEWMMIO_REGSIZE 0x0080000 /* 512kb */
87#define SAVAGE_NEWMMIO_VGABASE 0x8000
88
89#define BASE_FREQ 14318
90#define HALF_BASE_FREQ 7159
91
92#define FIFO_CONTROL_REG 0x8200
93#define MIU_CONTROL_REG 0x8204
94#define STREAMS_TIMEOUT_REG 0x8208
95#define MISC_TIMEOUT_REG 0x820c
96
97#define MONO_PAT_0 0xa4e8
98#define MONO_PAT_1 0xa4ec
99
100#define MAXFIFO 0x7f00
101
102#define BCI_CMD_NOP 0x40000000
103#define BCI_CMD_SETREG 0x96000000
104#define BCI_CMD_RECT 0x48000000
105#define BCI_CMD_RECT_XP 0x01000000
106#define BCI_CMD_RECT_YP 0x02000000
107#define BCI_CMD_SEND_COLOR 0x00008000
108#define BCI_CMD_DEST_GBD 0x00000000
109#define BCI_CMD_SRC_GBD 0x00000020
110#define BCI_CMD_SRC_SOLID 0x00000000
111#define BCI_CMD_SRC_MONO 0x00000060
112#define BCI_CMD_CLIP_NEW 0x00006000
113#define BCI_CMD_CLIP_LR 0x00004000
114
115#define BCI_CLIP_LR(l, r) ((((r) << 16) | (l)) & 0x0FFF0FFF)
116#define BCI_CLIP_TL(t, l) ((((t) << 16) | (l)) & 0x0FFF0FFF)
117#define BCI_CLIP_BR(b, r) ((((b) << 16) | (r)) & 0x0FFF0FFF)
118#define BCI_W_H(w, h) (((h) << 16) | ((w) & 0xFFF))
119#define BCI_X_Y(x, y) (((y) << 16) | ((x) & 0xFFF))
120
121#define BCI_GBD1 0xE0
122#define BCI_GBD2 0xE1
123
124#define BCI_BUFFER_OFFSET 0x10000
125#define BCI_SIZE 0x4000
126
127#define BCI_SEND(dw) writel(dw, par->bci_base + par->bci_ptr++)
128
129#define BCI_CMD_GET_ROP(cmd) (((cmd) >> 16) & 0xFF)
130#define BCI_CMD_SET_ROP(cmd, rop) ((cmd) |= ((rop & 0xFF) << 16))
131#define BCI_CMD_SEND_COLOR 0x00008000
132
133#define DISP_CRT 1
134#define DISP_LCD 2
135#define DISP_DFP 3
136
137struct xtimings {
138 unsigned int Clock;
139 unsigned int HDisplay;
140 unsigned int HSyncStart;
141 unsigned int HSyncEnd;
142 unsigned int HTotal;
143 unsigned int HAdjusted;
144 unsigned int VDisplay;
145 unsigned int VSyncStart;
146 unsigned int VSyncEnd;
147 unsigned int VTotal;
148 unsigned int sync;
149 int dblscan;
150 int interlaced;
151};
152
153struct savage_reg {
154 unsigned char MiscOutReg; /* Misc */
155 unsigned char CRTC[25]; /* Crtc Controller */
156 unsigned char Sequencer[5]; /* Video Sequencer */
157 unsigned char Graphics[9]; /* Video Graphics */
158 unsigned char Attribute[21]; /* Video Attribute */
159
160 unsigned int mode, refresh;
161 unsigned char SR08, SR0E, SR0F;
162 unsigned char SR10, SR11, SR12, SR13, SR15, SR18, SR29, SR30;
163 unsigned char SR54[8];
164 unsigned char Clock;
165 unsigned char CR31, CR32, CR33, CR34, CR36, CR3A, CR3B, CR3C;
166 unsigned char CR40, CR41, CR42, CR43, CR45;
167 unsigned char CR50, CR51, CR53, CR55, CR58, CR5B, CR5D, CR5E;
168 unsigned char CR60, CR63, CR65, CR66, CR67, CR68, CR69, CR6D, CR6F;
169 unsigned char CR86, CR88;
170 unsigned char CR90, CR91, CRB0;
171 unsigned int STREAMS[22]; /* yuck, streams regs */
172 unsigned int MMPR0, MMPR1, MMPR2, MMPR3;
173};
174/* --------------------------------------------------------------------- */
175
176#define NR_PALETTE 256
177
178
179struct savagefb_par;
180
181struct savagefb_i2c_chan {
182 struct savagefb_par *par;
183 struct i2c_adapter adapter;
184 struct i2c_algo_bit_data algo;
185 volatile u8 __iomem *ioaddr;
186 u32 reg;
187};
188
189struct savagefb_par {
190 struct pci_dev *pcidev;
191 savage_chipset chip;
192 struct savagefb_i2c_chan chan;
193 struct savage_reg state;
194 struct savage_reg save;
195 struct savage_reg initial;
196 struct vgastate vgastate;
197 struct mutex open_lock;
198 unsigned char *edid;
199 u32 pseudo_palette[16];
200 u32 open_count;
201 int paletteEnabled;
202 int pm_state;
203 int display_type;
204 int dvi;
205 int crtonly;
206 int dacSpeedBpp;
207 int maxClock;
208 int minClock;
209 int numClocks;
210 int clock[4];
211 int MCLK, REFCLK, LCDclk;
212 struct {
213 void __iomem *vbase;
214 u32 pbase;
215 u32 len;
216#ifdef CONFIG_MTRR
217 int mtrr;
218#endif
219 } video;
220
221 struct {
222 void __iomem *vbase;
223 u32 pbase;
224 u32 len;
225 } mmio;
226
227 volatile u32 __iomem *bci_base;
228 unsigned int bci_ptr;
229 u32 cob_offset;
230 u32 cob_size;
231 int cob_index;
232
233 void (*SavageWaitIdle) (struct savagefb_par *par);
234 void (*SavageWaitFifo) (struct savagefb_par *par, int space);
235
236 int HorizScaleFactor;
237
238 /* Panels size */
239 int SavagePanelWidth;
240 int SavagePanelHeight;
241
242 struct {
243 u16 red, green, blue, transp;
244 } palette[NR_PALETTE];
245
246 int depth;
247 int vwidth;
248};
249
250#define BCI_BD_BW_DISABLE 0x10000000
251#define BCI_BD_SET_BPP(bd, bpp) ((bd) |= (((bpp) & 0xFF) << 16))
252#define BCI_BD_SET_STRIDE(bd, st) ((bd) |= ((st) & 0xFFFF))
253
254
255/* IO functions */
256static inline u8 savage_in8(u32 addr, struct savagefb_par *par)
257{
258 return readb(par->mmio.vbase + addr);
259}
260
261static inline u16 savage_in16(u32 addr, struct savagefb_par *par)
262{
263 return readw(par->mmio.vbase + addr);
264}
265
266static inline u32 savage_in32(u32 addr, struct savagefb_par *par)
267{
268 return readl(par->mmio.vbase + addr);
269}
270
271static inline void savage_out8(u32 addr, u8 val, struct savagefb_par *par)
272{
273 writeb(val, par->mmio.vbase + addr);
274}
275
276static inline void savage_out16(u32 addr, u16 val, struct savagefb_par *par)
277{
278 writew(val, par->mmio.vbase + addr);
279}
280
281static inline void savage_out32(u32 addr, u32 val, struct savagefb_par *par)
282{
283 writel(val, par->mmio.vbase + addr);
284}
285
286static inline u8 vga_in8(int addr, struct savagefb_par *par)
287{
288 return savage_in8(0x8000 + addr, par);
289}
290
291static inline u16 vga_in16(int addr, struct savagefb_par *par)
292{
293 return savage_in16(0x8000 + addr, par);
294}
295
296static inline u8 vga_in32(int addr, struct savagefb_par *par)
297{
298 return savage_in32(0x8000 + addr, par);
299}
300
301static inline void vga_out8(int addr, u8 val, struct savagefb_par *par)
302{
303 savage_out8(0x8000 + addr, val, par);
304}
305
306static inline void vga_out16(int addr, u16 val, struct savagefb_par *par)
307{
308 savage_out16(0x8000 + addr, val, par);
309}
310
311static inline void vga_out32(int addr, u32 val, struct savagefb_par *par)
312{
313 savage_out32(0x8000 + addr, val, par);
314}
315
316static inline u8 VGArCR (u8 index, struct savagefb_par *par)
317{
318 vga_out8(0x3d4, index, par);
319 return vga_in8(0x3d5, par);
320}
321
322static inline u8 VGArGR (u8 index, struct savagefb_par *par)
323{
324 vga_out8(0x3ce, index, par);
325 return vga_in8(0x3cf, par);
326}
327
328static inline u8 VGArSEQ (u8 index, struct savagefb_par *par)
329{
330 vga_out8(0x3c4, index, par);
331 return vga_in8(0x3c5, par);
332}
333
334static inline void VGAwCR(u8 index, u8 val, struct savagefb_par *par)
335{
336 vga_out8(0x3d4, index, par);
337 vga_out8(0x3d5, val, par);
338}
339
340static inline void VGAwGR(u8 index, u8 val, struct savagefb_par *par)
341{
342 vga_out8(0x3ce, index, par);
343 vga_out8(0x3cf, val, par);
344}
345
346static inline void VGAwSEQ(u8 index, u8 val, struct savagefb_par *par)
347{
348 vga_out8(0x3c4, index, par);
349 vga_out8 (0x3c5, val, par);
350}
351
352static inline void VGAenablePalette(struct savagefb_par *par)
353{
354 u8 tmp;
355
356 tmp = vga_in8(0x3da, par);
357 vga_out8(0x3c0, 0x00, par);
358 par->paletteEnabled = 1;
359}
360
361static inline void VGAdisablePalette(struct savagefb_par *par)
362{
363 u8 tmp;
364
365 tmp = vga_in8(0x3da, par);
366 vga_out8(0x3c0, 0x20, par);
367 par->paletteEnabled = 0;
368}
369
370static inline void VGAwATTR(u8 index, u8 value, struct savagefb_par *par)
371{
372 u8 tmp;
373
374 if (par->paletteEnabled)
375 index &= ~0x20;
376 else
377 index |= 0x20;
378
379 tmp = vga_in8(0x3da, par);
380 vga_out8(0x3c0, index, par);
381 vga_out8 (0x3c0, value, par);
382}
383
384static inline void VGAwMISC(u8 value, struct savagefb_par *par)
385{
386 vga_out8(0x3c2, value, par);
387}
388
389#ifndef CONFIG_FB_SAVAGE_ACCEL
390#define savagefb_set_clip(x)
391#endif
392
393static inline void VerticalRetraceWait(struct savagefb_par *par)
394{
395 vga_out8(0x3d4, 0x17, par);
396 if (vga_in8(0x3d5, par) & 0x80) {
397 while ((vga_in8(0x3da, par) & 0x08) == 0x08);
398 while ((vga_in8(0x3da, par) & 0x08) == 0x00);
399 }
400}
401
402extern int savagefb_probe_i2c_connector(struct fb_info *info,
403 u8 **out_edid);
404extern void savagefb_create_i2c_busses(struct fb_info *info);
405extern void savagefb_delete_i2c_busses(struct fb_info *info);
406extern int savagefb_sync(struct fb_info *info);
407extern void savagefb_copyarea(struct fb_info *info,
408 const struct fb_copyarea *region);
409extern void savagefb_fillrect(struct fb_info *info,
410 const struct fb_fillrect *rect);
411extern void savagefb_imageblit(struct fb_info *info,
412 const struct fb_image *image);
413
414
415#endif /* __SAVAGEFB_H__ */
diff --git a/drivers/video/fbdev/savage/savagefb_accel.c b/drivers/video/fbdev/savage/savagefb_accel.c
new file mode 100644
index 000000000000..bfefa6234cf0
--- /dev/null
+++ b/drivers/video/fbdev/savage/savagefb_accel.c
@@ -0,0 +1,137 @@
1/*-*- linux-c -*-
2 * linux/drivers/video/savage/savage_accel.c -- Hardware Acceleration
3 *
4 * Copyright (C) 2004 Antonino Daplas<adaplas@pol.net>
5 * All Rights Reserved
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file COPYING in the main directory of this archive for
9 * more details.
10 */
11#include <linux/kernel.h>
12#include <linux/string.h>
13#include <linux/fb.h>
14#include <linux/module.h>
15
16#include "savagefb.h"
17
18static u32 savagefb_rop[] = {
19 0xCC, /* ROP_COPY */
20 0x5A /* ROP_XOR */
21};
22
23int savagefb_sync(struct fb_info *info)
24{
25 struct savagefb_par *par = info->par;
26
27 par->SavageWaitIdle(par);
28 return 0;
29}
30
31void savagefb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
32{
33 struct savagefb_par *par = info->par;
34 int sx = region->sx, dx = region->dx;
35 int sy = region->sy, dy = region->dy;
36 int cmd;
37
38 if (!region->width || !region->height)
39 return;
40 par->bci_ptr = 0;
41 cmd = BCI_CMD_RECT | BCI_CMD_DEST_GBD | BCI_CMD_SRC_GBD;
42 BCI_CMD_SET_ROP(cmd, savagefb_rop[0]);
43
44 if (dx <= sx) {
45 cmd |= BCI_CMD_RECT_XP;
46 } else {
47 sx += region->width - 1;
48 dx += region->width - 1;
49 }
50
51 if (dy <= sy) {
52 cmd |= BCI_CMD_RECT_YP;
53 } else {
54 sy += region->height - 1;
55 dy += region->height - 1;
56 }
57
58 par->SavageWaitFifo(par,4);
59 BCI_SEND(cmd);
60 BCI_SEND(BCI_X_Y(sx, sy));
61 BCI_SEND(BCI_X_Y(dx, dy));
62 BCI_SEND(BCI_W_H(region->width, region->height));
63}
64
65void savagefb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
66{
67 struct savagefb_par *par = info->par;
68 int cmd, color;
69
70 if (!rect->width || !rect->height)
71 return;
72
73 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR)
74 color = rect->color;
75 else
76 color = ((u32 *)info->pseudo_palette)[rect->color];
77
78 cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
79 BCI_CMD_DEST_GBD | BCI_CMD_SRC_SOLID |
80 BCI_CMD_SEND_COLOR;
81
82 par->bci_ptr = 0;
83 BCI_CMD_SET_ROP(cmd, savagefb_rop[rect->rop]);
84
85 par->SavageWaitFifo(par,4);
86 BCI_SEND(cmd);
87 BCI_SEND(color);
88 BCI_SEND( BCI_X_Y(rect->dx, rect->dy) );
89 BCI_SEND( BCI_W_H(rect->width, rect->height) );
90}
91
92void savagefb_imageblit(struct fb_info *info, const struct fb_image *image)
93{
94 struct savagefb_par *par = info->par;
95 int fg, bg, size, i, width;
96 int cmd;
97 u32 *src = (u32 *) image->data;
98
99 if (!image->width || !image->height)
100 return;
101
102 if (image->depth != 1) {
103 cfb_imageblit(info, image);
104 return;
105 }
106
107 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
108 fg = image->fg_color;
109 bg = image->bg_color;
110 } else {
111 fg = ((u32 *)info->pseudo_palette)[image->fg_color];
112 bg = ((u32 *)info->pseudo_palette)[image->bg_color];
113 }
114
115 cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
116 BCI_CMD_CLIP_LR | BCI_CMD_DEST_GBD | BCI_CMD_SRC_MONO |
117 BCI_CMD_SEND_COLOR;
118
119 par->bci_ptr = 0;
120 BCI_CMD_SET_ROP(cmd, savagefb_rop[0]);
121
122 width = (image->width + 31) & ~31;
123 size = (width * image->height)/8;
124 size >>= 2;
125
126 par->SavageWaitFifo(par, size + 5);
127 BCI_SEND(cmd);
128 BCI_SEND(BCI_CLIP_LR(image->dx, image->dx + image->width - 1));
129 BCI_SEND(fg);
130 BCI_SEND(bg);
131 BCI_SEND(BCI_X_Y(image->dx, image->dy));
132 BCI_SEND(BCI_W_H(width, image->height));
133 for (i = 0; i < size; i++)
134 BCI_SEND(src[i]);
135}
136
137MODULE_LICENSE("GPL");
diff --git a/drivers/video/fbdev/savage/savagefb_driver.c b/drivers/video/fbdev/savage/savagefb_driver.c
new file mode 100644
index 000000000000..4dbf45f3b21a
--- /dev/null
+++ b/drivers/video/fbdev/savage/savagefb_driver.c
@@ -0,0 +1,2571 @@
1/*
2 * linux/drivers/video/savagefb.c -- S3 Savage Framebuffer Driver
3 *
4 * Copyright (c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>
5 * Sven Neumann <neo@directfb.org>
6 *
7 *
8 * Card specific code is based on XFree86's savage driver.
9 * Framebuffer framework code is based on code of cyber2000fb and tdfxfb.
10 *
11 * This file is subject to the terms and conditions of the GNU General
12 * Public License. See the file COPYING in the main directory of this
13 * archive for more details.
14 *
15 * 0.4.0 (neo)
16 * - hardware accelerated clear and move
17 *
18 * 0.3.2 (dok)
19 * - wait for vertical retrace before writing to cr67
20 * at the beginning of savagefb_set_par
21 * - use synchronization registers cr23 and cr26
22 *
23 * 0.3.1 (dok)
24 * - reset 3D engine
25 * - don't return alpha bits for 32bit format
26 *
27 * 0.3.0 (dok)
28 * - added WaitIdle functions for all Savage types
29 * - do WaitIdle before mode switching
30 * - code cleanup
31 *
32 * 0.2.0 (dok)
33 * - first working version
34 *
35 *
36 * TODO
37 * - clock validations in decode_var
38 *
39 * BUGS
40 * - white margin on bootup
41 *
42 */
43
44#include <linux/module.h>
45#include <linux/kernel.h>
46#include <linux/errno.h>
47#include <linux/string.h>
48#include <linux/mm.h>
49#include <linux/slab.h>
50#include <linux/delay.h>
51#include <linux/fb.h>
52#include <linux/pci.h>
53#include <linux/init.h>
54#include <linux/console.h>
55
56#include <asm/io.h>
57#include <asm/irq.h>
58#include <asm/pgtable.h>
59
60#ifdef CONFIG_MTRR
61#include <asm/mtrr.h>
62#endif
63
64#include "savagefb.h"
65
66
67#define SAVAGEFB_VERSION "0.4.0_2.6"
68
69/* --------------------------------------------------------------------- */
70
71
72static char *mode_option = NULL;
73
74#ifdef MODULE
75
76MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>");
77MODULE_LICENSE("GPL");
78MODULE_DESCRIPTION("FBDev driver for S3 Savage PCI/AGP Chips");
79
80#endif
81
82
83/* --------------------------------------------------------------------- */
84
85static void vgaHWSeqReset(struct savagefb_par *par, int start)
86{
87 if (start)
88 VGAwSEQ(0x00, 0x01, par); /* Synchronous Reset */
89 else
90 VGAwSEQ(0x00, 0x03, par); /* End Reset */
91}
92
93static void vgaHWProtect(struct savagefb_par *par, int on)
94{
95 unsigned char tmp;
96
97 if (on) {
98 /*
99 * Turn off screen and disable sequencer.
100 */
101 tmp = VGArSEQ(0x01, par);
102
103 vgaHWSeqReset(par, 1); /* start synchronous reset */
104 VGAwSEQ(0x01, tmp | 0x20, par);/* disable the display */
105
106 VGAenablePalette(par);
107 } else {
108 /*
109 * Reenable sequencer, then turn on screen.
110 */
111
112 tmp = VGArSEQ(0x01, par);
113
114 VGAwSEQ(0x01, tmp & ~0x20, par);/* reenable display */
115 vgaHWSeqReset(par, 0); /* clear synchronous reset */
116
117 VGAdisablePalette(par);
118 }
119}
120
121static void vgaHWRestore(struct savagefb_par *par, struct savage_reg *reg)
122{
123 int i;
124
125 VGAwMISC(reg->MiscOutReg, par);
126
127 for (i = 1; i < 5; i++)
128 VGAwSEQ(i, reg->Sequencer[i], par);
129
130 /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or
131 CRTC[17] */
132 VGAwCR(17, reg->CRTC[17] & ~0x80, par);
133
134 for (i = 0; i < 25; i++)
135 VGAwCR(i, reg->CRTC[i], par);
136
137 for (i = 0; i < 9; i++)
138 VGAwGR(i, reg->Graphics[i], par);
139
140 VGAenablePalette(par);
141
142 for (i = 0; i < 21; i++)
143 VGAwATTR(i, reg->Attribute[i], par);
144
145 VGAdisablePalette(par);
146}
147
148static void vgaHWInit(struct fb_var_screeninfo *var,
149 struct savagefb_par *par,
150 struct xtimings *timings,
151 struct savage_reg *reg)
152{
153 reg->MiscOutReg = 0x23;
154
155 if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
156 reg->MiscOutReg |= 0x40;
157
158 if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
159 reg->MiscOutReg |= 0x80;
160
161 /*
162 * Time Sequencer
163 */
164 reg->Sequencer[0x00] = 0x00;
165 reg->Sequencer[0x01] = 0x01;
166 reg->Sequencer[0x02] = 0x0F;
167 reg->Sequencer[0x03] = 0x00; /* Font select */
168 reg->Sequencer[0x04] = 0x0E; /* Misc */
169
170 /*
171 * CRTC Controller
172 */
173 reg->CRTC[0x00] = (timings->HTotal >> 3) - 5;
174 reg->CRTC[0x01] = (timings->HDisplay >> 3) - 1;
175 reg->CRTC[0x02] = (timings->HSyncStart >> 3) - 1;
176 reg->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80;
177 reg->CRTC[0x04] = (timings->HSyncStart >> 3);
178 reg->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) |
179 (((timings->HSyncEnd >> 3)) & 0x1f);
180 reg->CRTC[0x06] = (timings->VTotal - 2) & 0xFF;
181 reg->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) |
182 (((timings->VDisplay - 1) & 0x100) >> 7) |
183 ((timings->VSyncStart & 0x100) >> 6) |
184 (((timings->VSyncStart - 1) & 0x100) >> 5) |
185 0x10 |
186 (((timings->VTotal - 2) & 0x200) >> 4) |
187 (((timings->VDisplay - 1) & 0x200) >> 3) |
188 ((timings->VSyncStart & 0x200) >> 2);
189 reg->CRTC[0x08] = 0x00;
190 reg->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40;
191
192 if (timings->dblscan)
193 reg->CRTC[0x09] |= 0x80;
194
195 reg->CRTC[0x0a] = 0x00;
196 reg->CRTC[0x0b] = 0x00;
197 reg->CRTC[0x0c] = 0x00;
198 reg->CRTC[0x0d] = 0x00;
199 reg->CRTC[0x0e] = 0x00;
200 reg->CRTC[0x0f] = 0x00;
201 reg->CRTC[0x10] = timings->VSyncStart & 0xff;
202 reg->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20;
203 reg->CRTC[0x12] = (timings->VDisplay - 1) & 0xff;
204 reg->CRTC[0x13] = var->xres_virtual >> 4;
205 reg->CRTC[0x14] = 0x00;
206 reg->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff;
207 reg->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff;
208 reg->CRTC[0x17] = 0xc3;
209 reg->CRTC[0x18] = 0xff;
210
211 /*
212 * are these unnecessary?
213 * vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO);
214 * vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO);
215 */
216
217 /*
218 * Graphics Display Controller
219 */
220 reg->Graphics[0x00] = 0x00;
221 reg->Graphics[0x01] = 0x00;
222 reg->Graphics[0x02] = 0x00;
223 reg->Graphics[0x03] = 0x00;
224 reg->Graphics[0x04] = 0x00;
225 reg->Graphics[0x05] = 0x40;
226 reg->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */
227 reg->Graphics[0x07] = 0x0F;
228 reg->Graphics[0x08] = 0xFF;
229
230
231 reg->Attribute[0x00] = 0x00; /* standard colormap translation */
232 reg->Attribute[0x01] = 0x01;
233 reg->Attribute[0x02] = 0x02;
234 reg->Attribute[0x03] = 0x03;
235 reg->Attribute[0x04] = 0x04;
236 reg->Attribute[0x05] = 0x05;
237 reg->Attribute[0x06] = 0x06;
238 reg->Attribute[0x07] = 0x07;
239 reg->Attribute[0x08] = 0x08;
240 reg->Attribute[0x09] = 0x09;
241 reg->Attribute[0x0a] = 0x0A;
242 reg->Attribute[0x0b] = 0x0B;
243 reg->Attribute[0x0c] = 0x0C;
244 reg->Attribute[0x0d] = 0x0D;
245 reg->Attribute[0x0e] = 0x0E;
246 reg->Attribute[0x0f] = 0x0F;
247 reg->Attribute[0x10] = 0x41;
248 reg->Attribute[0x11] = 0xFF;
249 reg->Attribute[0x12] = 0x0F;
250 reg->Attribute[0x13] = 0x00;
251 reg->Attribute[0x14] = 0x00;
252}
253
254/* -------------------- Hardware specific routines ------------------------- */
255
256/*
257 * Hardware Acceleration for SavageFB
258 */
259
260/* Wait for fifo space */
261static void
262savage3D_waitfifo(struct savagefb_par *par, int space)
263{
264 int slots = MAXFIFO - space;
265
266 while ((savage_in32(0x48C00, par) & 0x0000ffff) > slots);
267}
268
269static void
270savage4_waitfifo(struct savagefb_par *par, int space)
271{
272 int slots = MAXFIFO - space;
273
274 while ((savage_in32(0x48C60, par) & 0x001fffff) > slots);
275}
276
277static void
278savage2000_waitfifo(struct savagefb_par *par, int space)
279{
280 int slots = MAXFIFO - space;
281
282 while ((savage_in32(0x48C60, par) & 0x0000ffff) > slots);
283}
284
285/* Wait for idle accelerator */
286static void
287savage3D_waitidle(struct savagefb_par *par)
288{
289 while ((savage_in32(0x48C00, par) & 0x0008ffff) != 0x80000);
290}
291
292static void
293savage4_waitidle(struct savagefb_par *par)
294{
295 while ((savage_in32(0x48C60, par) & 0x00a00000) != 0x00a00000);
296}
297
298static void
299savage2000_waitidle(struct savagefb_par *par)
300{
301 while ((savage_in32(0x48C60, par) & 0x009fffff));
302}
303
304#ifdef CONFIG_FB_SAVAGE_ACCEL
305static void
306SavageSetup2DEngine(struct savagefb_par *par)
307{
308 unsigned long GlobalBitmapDescriptor;
309
310 GlobalBitmapDescriptor = 1 | 8 | BCI_BD_BW_DISABLE;
311 BCI_BD_SET_BPP(GlobalBitmapDescriptor, par->depth);
312 BCI_BD_SET_STRIDE(GlobalBitmapDescriptor, par->vwidth);
313
314 switch(par->chip) {
315 case S3_SAVAGE3D:
316 case S3_SAVAGE_MX:
317 /* Disable BCI */
318 savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
319 /* Setup BCI command overflow buffer */
320 savage_out32(0x48C14,
321 (par->cob_offset >> 11) | (par->cob_index << 29),
322 par);
323 /* Program shadow status update. */
324 savage_out32(0x48C10, 0x78207220, par);
325 savage_out32(0x48C0C, 0, par);
326 /* Enable BCI and command overflow buffer */
327 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x0C, par);
328 break;
329 case S3_SAVAGE4:
330 case S3_TWISTER:
331 case S3_PROSAVAGE:
332 case S3_PROSAVAGEDDR:
333 case S3_SUPERSAVAGE:
334 /* Disable BCI */
335 savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
336 /* Program shadow status update */
337 savage_out32(0x48C10, 0x00700040, par);
338 savage_out32(0x48C0C, 0, par);
339 /* Enable BCI without the COB */
340 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x08, par);
341 break;
342 case S3_SAVAGE2000:
343 /* Disable BCI */
344 savage_out32(0x48C18, 0, par);
345 /* Setup BCI command overflow buffer */
346 savage_out32(0x48C18,
347 (par->cob_offset >> 7) | (par->cob_index),
348 par);
349 /* Disable shadow status update */
350 savage_out32(0x48A30, 0, par);
351 /* Enable BCI and command overflow buffer */
352 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x00280000,
353 par);
354 break;
355 default:
356 break;
357 }
358 /* Turn on 16-bit register access. */
359 vga_out8(0x3d4, 0x31, par);
360 vga_out8(0x3d5, 0x0c, par);
361
362 /* Set stride to use GBD. */
363 vga_out8(0x3d4, 0x50, par);
364 vga_out8(0x3d5, vga_in8(0x3d5, par) | 0xC1, par);
365
366 /* Enable 2D engine. */
367 vga_out8(0x3d4, 0x40, par);
368 vga_out8(0x3d5, 0x01, par);
369
370 savage_out32(MONO_PAT_0, ~0, par);
371 savage_out32(MONO_PAT_1, ~0, par);
372
373 /* Setup plane masks */
374 savage_out32(0x8128, ~0, par); /* enable all write planes */
375 savage_out32(0x812C, ~0, par); /* enable all read planes */
376 savage_out16(0x8134, 0x27, par);
377 savage_out16(0x8136, 0x07, par);
378
379 /* Now set the GBD */
380 par->bci_ptr = 0;
381 par->SavageWaitFifo(par, 4);
382
383 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
384 BCI_SEND(0);
385 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
386 BCI_SEND(GlobalBitmapDescriptor);
387
388 /*
389 * I don't know why, sending this twice fixes the initial black screen,
390 * prevents X from crashing at least in Toshiba laptops with SavageIX.
391 * --Tony
392 */
393 par->bci_ptr = 0;
394 par->SavageWaitFifo(par, 4);
395
396 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
397 BCI_SEND(0);
398 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
399 BCI_SEND(GlobalBitmapDescriptor);
400}
401
402static void savagefb_set_clip(struct fb_info *info)
403{
404 struct savagefb_par *par = info->par;
405 int cmd;
406
407 cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW;
408 par->bci_ptr = 0;
409 par->SavageWaitFifo(par,3);
410 BCI_SEND(cmd);
411 BCI_SEND(BCI_CLIP_TL(0, 0));
412 BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff));
413}
414#else
415static void SavageSetup2DEngine(struct savagefb_par *par) {}
416
417#endif
418
419static void SavageCalcClock(long freq, int min_m, int min_n1, int max_n1,
420 int min_n2, int max_n2, long freq_min,
421 long freq_max, unsigned int *mdiv,
422 unsigned int *ndiv, unsigned int *r)
423{
424 long diff, best_diff;
425 unsigned int m;
426 unsigned char n1, n2, best_n1=16+2, best_n2=2, best_m=125+2;
427
428 if (freq < freq_min / (1 << max_n2)) {
429 printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
430 freq = freq_min / (1 << max_n2);
431 }
432 if (freq > freq_max / (1 << min_n2)) {
433 printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
434 freq = freq_max / (1 << min_n2);
435 }
436
437 /* work out suitable timings */
438 best_diff = freq;
439
440 for (n2=min_n2; n2<=max_n2; n2++) {
441 for (n1=min_n1+2; n1<=max_n1+2; n1++) {
442 m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) /
443 BASE_FREQ;
444 if (m < min_m+2 || m > 127+2)
445 continue;
446 if ((m * BASE_FREQ >= freq_min * n1) &&
447 (m * BASE_FREQ <= freq_max * n1)) {
448 diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
449 if (diff < 0)
450 diff = -diff;
451 if (diff < best_diff) {
452 best_diff = diff;
453 best_m = m;
454 best_n1 = n1;
455 best_n2 = n2;
456 }
457 }
458 }
459 }
460
461 *ndiv = best_n1 - 2;
462 *r = best_n2;
463 *mdiv = best_m - 2;
464}
465
466static int common_calc_clock(long freq, int min_m, int min_n1, int max_n1,
467 int min_n2, int max_n2, long freq_min,
468 long freq_max, unsigned char *mdiv,
469 unsigned char *ndiv)
470{
471 long diff, best_diff;
472 unsigned int m;
473 unsigned char n1, n2;
474 unsigned char best_n1 = 16+2, best_n2 = 2, best_m = 125+2;
475
476 best_diff = freq;
477
478 for (n2 = min_n2; n2 <= max_n2; n2++) {
479 for (n1 = min_n1+2; n1 <= max_n1+2; n1++) {
480 m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) /
481 BASE_FREQ;
482 if (m < min_m + 2 || m > 127+2)
483 continue;
484 if ((m * BASE_FREQ >= freq_min * n1) &&
485 (m * BASE_FREQ <= freq_max * n1)) {
486 diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
487 if (diff < 0)
488 diff = -diff;
489 if (diff < best_diff) {
490 best_diff = diff;
491 best_m = m;
492 best_n1 = n1;
493 best_n2 = n2;
494 }
495 }
496 }
497 }
498
499 if (max_n1 == 63)
500 *ndiv = (best_n1 - 2) | (best_n2 << 6);
501 else
502 *ndiv = (best_n1 - 2) | (best_n2 << 5);
503
504 *mdiv = best_m - 2;
505
506 return 0;
507}
508
509#ifdef SAVAGEFB_DEBUG
510/* This function is used to debug, it prints out the contents of s3 regs */
511
512static void SavagePrintRegs(struct savagefb_par *par)
513{
514 unsigned char i;
515 int vgaCRIndex = 0x3d4;
516 int vgaCRReg = 0x3d5;
517
518 printk(KERN_DEBUG "SR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE "
519 "xF");
520
521 for (i = 0; i < 0x70; i++) {
522 if (!(i % 16))
523 printk(KERN_DEBUG "\nSR%xx ", i >> 4);
524 vga_out8(0x3c4, i, par);
525 printk(KERN_DEBUG " %02x", vga_in8(0x3c5, par));
526 }
527
528 printk(KERN_DEBUG "\n\nCR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC "
529 "xD xE xF");
530
531 for (i = 0; i < 0xB7; i++) {
532 if (!(i % 16))
533 printk(KERN_DEBUG "\nCR%xx ", i >> 4);
534 vga_out8(vgaCRIndex, i, par);
535 printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg, par));
536 }
537
538 printk(KERN_DEBUG "\n\n");
539}
540#endif
541
542/* --------------------------------------------------------------------- */
543
544static void savage_get_default_par(struct savagefb_par *par, struct savage_reg *reg)
545{
546 unsigned char cr3a, cr53, cr66;
547
548 vga_out16(0x3d4, 0x4838, par);
549 vga_out16(0x3d4, 0xa039, par);
550 vga_out16(0x3c4, 0x0608, par);
551
552 vga_out8(0x3d4, 0x66, par);
553 cr66 = vga_in8(0x3d5, par);
554 vga_out8(0x3d5, cr66 | 0x80, par);
555 vga_out8(0x3d4, 0x3a, par);
556 cr3a = vga_in8(0x3d5, par);
557 vga_out8(0x3d5, cr3a | 0x80, par);
558 vga_out8(0x3d4, 0x53, par);
559 cr53 = vga_in8(0x3d5, par);
560 vga_out8(0x3d5, cr53 & 0x7f, par);
561
562 vga_out8(0x3d4, 0x66, par);
563 vga_out8(0x3d5, cr66, par);
564 vga_out8(0x3d4, 0x3a, par);
565 vga_out8(0x3d5, cr3a, par);
566
567 vga_out8(0x3d4, 0x66, par);
568 vga_out8(0x3d5, cr66, par);
569 vga_out8(0x3d4, 0x3a, par);
570 vga_out8(0x3d5, cr3a, par);
571
572 /* unlock extended seq regs */
573 vga_out8(0x3c4, 0x08, par);
574 reg->SR08 = vga_in8(0x3c5, par);
575 vga_out8(0x3c5, 0x06, par);
576
577 /* now save all the extended regs we need */
578 vga_out8(0x3d4, 0x31, par);
579 reg->CR31 = vga_in8(0x3d5, par);
580 vga_out8(0x3d4, 0x32, par);
581 reg->CR32 = vga_in8(0x3d5, par);
582 vga_out8(0x3d4, 0x34, par);
583 reg->CR34 = vga_in8(0x3d5, par);
584 vga_out8(0x3d4, 0x36, par);
585 reg->CR36 = vga_in8(0x3d5, par);
586 vga_out8(0x3d4, 0x3a, par);
587 reg->CR3A = vga_in8(0x3d5, par);
588 vga_out8(0x3d4, 0x40, par);
589 reg->CR40 = vga_in8(0x3d5, par);
590 vga_out8(0x3d4, 0x42, par);
591 reg->CR42 = vga_in8(0x3d5, par);
592 vga_out8(0x3d4, 0x45, par);
593 reg->CR45 = vga_in8(0x3d5, par);
594 vga_out8(0x3d4, 0x50, par);
595 reg->CR50 = vga_in8(0x3d5, par);
596 vga_out8(0x3d4, 0x51, par);
597 reg->CR51 = vga_in8(0x3d5, par);
598 vga_out8(0x3d4, 0x53, par);
599 reg->CR53 = vga_in8(0x3d5, par);
600 vga_out8(0x3d4, 0x58, par);
601 reg->CR58 = vga_in8(0x3d5, par);
602 vga_out8(0x3d4, 0x60, par);
603 reg->CR60 = vga_in8(0x3d5, par);
604 vga_out8(0x3d4, 0x66, par);
605 reg->CR66 = vga_in8(0x3d5, par);
606 vga_out8(0x3d4, 0x67, par);
607 reg->CR67 = vga_in8(0x3d5, par);
608 vga_out8(0x3d4, 0x68, par);
609 reg->CR68 = vga_in8(0x3d5, par);
610 vga_out8(0x3d4, 0x69, par);
611 reg->CR69 = vga_in8(0x3d5, par);
612 vga_out8(0x3d4, 0x6f, par);
613 reg->CR6F = vga_in8(0x3d5, par);
614
615 vga_out8(0x3d4, 0x33, par);
616 reg->CR33 = vga_in8(0x3d5, par);
617 vga_out8(0x3d4, 0x86, par);
618 reg->CR86 = vga_in8(0x3d5, par);
619 vga_out8(0x3d4, 0x88, par);
620 reg->CR88 = vga_in8(0x3d5, par);
621 vga_out8(0x3d4, 0x90, par);
622 reg->CR90 = vga_in8(0x3d5, par);
623 vga_out8(0x3d4, 0x91, par);
624 reg->CR91 = vga_in8(0x3d5, par);
625 vga_out8(0x3d4, 0xb0, par);
626 reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
627
628 /* extended mode timing regs */
629 vga_out8(0x3d4, 0x3b, par);
630 reg->CR3B = vga_in8(0x3d5, par);
631 vga_out8(0x3d4, 0x3c, par);
632 reg->CR3C = vga_in8(0x3d5, par);
633 vga_out8(0x3d4, 0x43, par);
634 reg->CR43 = vga_in8(0x3d5, par);
635 vga_out8(0x3d4, 0x5d, par);
636 reg->CR5D = vga_in8(0x3d5, par);
637 vga_out8(0x3d4, 0x5e, par);
638 reg->CR5E = vga_in8(0x3d5, par);
639 vga_out8(0x3d4, 0x65, par);
640 reg->CR65 = vga_in8(0x3d5, par);
641
642 /* save seq extended regs for DCLK PLL programming */
643 vga_out8(0x3c4, 0x0e, par);
644 reg->SR0E = vga_in8(0x3c5, par);
645 vga_out8(0x3c4, 0x0f, par);
646 reg->SR0F = vga_in8(0x3c5, par);
647 vga_out8(0x3c4, 0x10, par);
648 reg->SR10 = vga_in8(0x3c5, par);
649 vga_out8(0x3c4, 0x11, par);
650 reg->SR11 = vga_in8(0x3c5, par);
651 vga_out8(0x3c4, 0x12, par);
652 reg->SR12 = vga_in8(0x3c5, par);
653 vga_out8(0x3c4, 0x13, par);
654 reg->SR13 = vga_in8(0x3c5, par);
655 vga_out8(0x3c4, 0x29, par);
656 reg->SR29 = vga_in8(0x3c5, par);
657
658 vga_out8(0x3c4, 0x15, par);
659 reg->SR15 = vga_in8(0x3c5, par);
660 vga_out8(0x3c4, 0x30, par);
661 reg->SR30 = vga_in8(0x3c5, par);
662 vga_out8(0x3c4, 0x18, par);
663 reg->SR18 = vga_in8(0x3c5, par);
664
665 /* Save flat panel expansion registers. */
666 if (par->chip == S3_SAVAGE_MX) {
667 int i;
668
669 for (i = 0; i < 8; i++) {
670 vga_out8(0x3c4, 0x54+i, par);
671 reg->SR54[i] = vga_in8(0x3c5, par);
672 }
673 }
674
675 vga_out8(0x3d4, 0x66, par);
676 cr66 = vga_in8(0x3d5, par);
677 vga_out8(0x3d5, cr66 | 0x80, par);
678 vga_out8(0x3d4, 0x3a, par);
679 cr3a = vga_in8(0x3d5, par);
680 vga_out8(0x3d5, cr3a | 0x80, par);
681
682 /* now save MIU regs */
683 if (par->chip != S3_SAVAGE_MX) {
684 reg->MMPR0 = savage_in32(FIFO_CONTROL_REG, par);
685 reg->MMPR1 = savage_in32(MIU_CONTROL_REG, par);
686 reg->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par);
687 reg->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par);
688 }
689
690 vga_out8(0x3d4, 0x3a, par);
691 vga_out8(0x3d5, cr3a, par);
692 vga_out8(0x3d4, 0x66, par);
693 vga_out8(0x3d5, cr66, par);
694}
695
696static void savage_set_default_par(struct savagefb_par *par,
697 struct savage_reg *reg)
698{
699 unsigned char cr3a, cr53, cr66;
700
701 vga_out16(0x3d4, 0x4838, par);
702 vga_out16(0x3d4, 0xa039, par);
703 vga_out16(0x3c4, 0x0608, par);
704
705 vga_out8(0x3d4, 0x66, par);
706 cr66 = vga_in8(0x3d5, par);
707 vga_out8(0x3d5, cr66 | 0x80, par);
708 vga_out8(0x3d4, 0x3a, par);
709 cr3a = vga_in8(0x3d5, par);
710 vga_out8(0x3d5, cr3a | 0x80, par);
711 vga_out8(0x3d4, 0x53, par);
712 cr53 = vga_in8(0x3d5, par);
713 vga_out8(0x3d5, cr53 & 0x7f, par);
714
715 vga_out8(0x3d4, 0x66, par);
716 vga_out8(0x3d5, cr66, par);
717 vga_out8(0x3d4, 0x3a, par);
718 vga_out8(0x3d5, cr3a, par);
719
720 vga_out8(0x3d4, 0x66, par);
721 vga_out8(0x3d5, cr66, par);
722 vga_out8(0x3d4, 0x3a, par);
723 vga_out8(0x3d5, cr3a, par);
724
725 /* unlock extended seq regs */
726 vga_out8(0x3c4, 0x08, par);
727 vga_out8(0x3c5, reg->SR08, par);
728 vga_out8(0x3c5, 0x06, par);
729
730 /* now restore all the extended regs we need */
731 vga_out8(0x3d4, 0x31, par);
732 vga_out8(0x3d5, reg->CR31, par);
733 vga_out8(0x3d4, 0x32, par);
734 vga_out8(0x3d5, reg->CR32, par);
735 vga_out8(0x3d4, 0x34, par);
736 vga_out8(0x3d5, reg->CR34, par);
737 vga_out8(0x3d4, 0x36, par);
738 vga_out8(0x3d5,reg->CR36, par);
739 vga_out8(0x3d4, 0x3a, par);
740 vga_out8(0x3d5, reg->CR3A, par);
741 vga_out8(0x3d4, 0x40, par);
742 vga_out8(0x3d5, reg->CR40, par);
743 vga_out8(0x3d4, 0x42, par);
744 vga_out8(0x3d5, reg->CR42, par);
745 vga_out8(0x3d4, 0x45, par);
746 vga_out8(0x3d5, reg->CR45, par);
747 vga_out8(0x3d4, 0x50, par);
748 vga_out8(0x3d5, reg->CR50, par);
749 vga_out8(0x3d4, 0x51, par);
750 vga_out8(0x3d5, reg->CR51, par);
751 vga_out8(0x3d4, 0x53, par);
752 vga_out8(0x3d5, reg->CR53, par);
753 vga_out8(0x3d4, 0x58, par);
754 vga_out8(0x3d5, reg->CR58, par);
755 vga_out8(0x3d4, 0x60, par);
756 vga_out8(0x3d5, reg->CR60, par);
757 vga_out8(0x3d4, 0x66, par);
758 vga_out8(0x3d5, reg->CR66, par);
759 vga_out8(0x3d4, 0x67, par);
760 vga_out8(0x3d5, reg->CR67, par);
761 vga_out8(0x3d4, 0x68, par);
762 vga_out8(0x3d5, reg->CR68, par);
763 vga_out8(0x3d4, 0x69, par);
764 vga_out8(0x3d5, reg->CR69, par);
765 vga_out8(0x3d4, 0x6f, par);
766 vga_out8(0x3d5, reg->CR6F, par);
767
768 vga_out8(0x3d4, 0x33, par);
769 vga_out8(0x3d5, reg->CR33, par);
770 vga_out8(0x3d4, 0x86, par);
771 vga_out8(0x3d5, reg->CR86, par);
772 vga_out8(0x3d4, 0x88, par);
773 vga_out8(0x3d5, reg->CR88, par);
774 vga_out8(0x3d4, 0x90, par);
775 vga_out8(0x3d5, reg->CR90, par);
776 vga_out8(0x3d4, 0x91, par);
777 vga_out8(0x3d5, reg->CR91, par);
778 vga_out8(0x3d4, 0xb0, par);
779 vga_out8(0x3d5, reg->CRB0, par);
780
781 /* extended mode timing regs */
782 vga_out8(0x3d4, 0x3b, par);
783 vga_out8(0x3d5, reg->CR3B, par);
784 vga_out8(0x3d4, 0x3c, par);
785 vga_out8(0x3d5, reg->CR3C, par);
786 vga_out8(0x3d4, 0x43, par);
787 vga_out8(0x3d5, reg->CR43, par);
788 vga_out8(0x3d4, 0x5d, par);
789 vga_out8(0x3d5, reg->CR5D, par);
790 vga_out8(0x3d4, 0x5e, par);
791 vga_out8(0x3d5, reg->CR5E, par);
792 vga_out8(0x3d4, 0x65, par);
793 vga_out8(0x3d5, reg->CR65, par);
794
795 /* save seq extended regs for DCLK PLL programming */
796 vga_out8(0x3c4, 0x0e, par);
797 vga_out8(0x3c5, reg->SR0E, par);
798 vga_out8(0x3c4, 0x0f, par);
799 vga_out8(0x3c5, reg->SR0F, par);
800 vga_out8(0x3c4, 0x10, par);
801 vga_out8(0x3c5, reg->SR10, par);
802 vga_out8(0x3c4, 0x11, par);
803 vga_out8(0x3c5, reg->SR11, par);
804 vga_out8(0x3c4, 0x12, par);
805 vga_out8(0x3c5, reg->SR12, par);
806 vga_out8(0x3c4, 0x13, par);
807 vga_out8(0x3c5, reg->SR13, par);
808 vga_out8(0x3c4, 0x29, par);
809 vga_out8(0x3c5, reg->SR29, par);
810
811 vga_out8(0x3c4, 0x15, par);
812 vga_out8(0x3c5, reg->SR15, par);
813 vga_out8(0x3c4, 0x30, par);
814 vga_out8(0x3c5, reg->SR30, par);
815 vga_out8(0x3c4, 0x18, par);
816 vga_out8(0x3c5, reg->SR18, par);
817
818 /* Save flat panel expansion registers. */
819 if (par->chip == S3_SAVAGE_MX) {
820 int i;
821
822 for (i = 0; i < 8; i++) {
823 vga_out8(0x3c4, 0x54+i, par);
824 vga_out8(0x3c5, reg->SR54[i], par);
825 }
826 }
827
828 vga_out8(0x3d4, 0x66, par);
829 cr66 = vga_in8(0x3d5, par);
830 vga_out8(0x3d5, cr66 | 0x80, par);
831 vga_out8(0x3d4, 0x3a, par);
832 cr3a = vga_in8(0x3d5, par);
833 vga_out8(0x3d5, cr3a | 0x80, par);
834
835 /* now save MIU regs */
836 if (par->chip != S3_SAVAGE_MX) {
837 savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
838 savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
839 savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
840 savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
841 }
842
843 vga_out8(0x3d4, 0x3a, par);
844 vga_out8(0x3d5, cr3a, par);
845 vga_out8(0x3d4, 0x66, par);
846 vga_out8(0x3d5, cr66, par);
847}
848
849static void savage_update_var(struct fb_var_screeninfo *var,
850 const struct fb_videomode *modedb)
851{
852 var->xres = var->xres_virtual = modedb->xres;
853 var->yres = modedb->yres;
854 if (var->yres_virtual < var->yres)
855 var->yres_virtual = var->yres;
856 var->xoffset = var->yoffset = 0;
857 var->pixclock = modedb->pixclock;
858 var->left_margin = modedb->left_margin;
859 var->right_margin = modedb->right_margin;
860 var->upper_margin = modedb->upper_margin;
861 var->lower_margin = modedb->lower_margin;
862 var->hsync_len = modedb->hsync_len;
863 var->vsync_len = modedb->vsync_len;
864 var->sync = modedb->sync;
865 var->vmode = modedb->vmode;
866}
867
868static int savagefb_check_var(struct fb_var_screeninfo *var,
869 struct fb_info *info)
870{
871 struct savagefb_par *par = info->par;
872 int memlen, vramlen, mode_valid = 0;
873
874 DBG("savagefb_check_var");
875
876 var->transp.offset = 0;
877 var->transp.length = 0;
878 switch (var->bits_per_pixel) {
879 case 8:
880 var->red.offset = var->green.offset =
881 var->blue.offset = 0;
882 var->red.length = var->green.length =
883 var->blue.length = var->bits_per_pixel;
884 break;
885 case 16:
886 var->red.offset = 11;
887 var->red.length = 5;
888 var->green.offset = 5;
889 var->green.length = 6;
890 var->blue.offset = 0;
891 var->blue.length = 5;
892 break;
893 case 32:
894 var->transp.offset = 24;
895 var->transp.length = 8;
896 var->red.offset = 16;
897 var->red.length = 8;
898 var->green.offset = 8;
899 var->green.length = 8;
900 var->blue.offset = 0;
901 var->blue.length = 8;
902 break;
903
904 default:
905 return -EINVAL;
906 }
907
908 if (!info->monspecs.hfmax || !info->monspecs.vfmax ||
909 !info->monspecs.dclkmax || !fb_validate_mode(var, info))
910 mode_valid = 1;
911
912 /* calculate modeline if supported by monitor */
913 if (!mode_valid && info->monspecs.gtf) {
914 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
915 mode_valid = 1;
916 }
917
918 if (!mode_valid) {
919 const struct fb_videomode *mode;
920
921 mode = fb_find_best_mode(var, &info->modelist);
922 if (mode) {
923 savage_update_var(var, mode);
924 mode_valid = 1;
925 }
926 }
927
928 if (!mode_valid && info->monspecs.modedb_len)
929 return -EINVAL;
930
931 /* Is the mode larger than the LCD panel? */
932 if (par->SavagePanelWidth &&
933 (var->xres > par->SavagePanelWidth ||
934 var->yres > par->SavagePanelHeight)) {
935 printk(KERN_INFO "Mode (%dx%d) larger than the LCD panel "
936 "(%dx%d)\n", var->xres, var->yres,
937 par->SavagePanelWidth,
938 par->SavagePanelHeight);
939 return -1;
940 }
941
942 if (var->yres_virtual < var->yres)
943 var->yres_virtual = var->yres;
944 if (var->xres_virtual < var->xres)
945 var->xres_virtual = var->xres;
946
947 vramlen = info->fix.smem_len;
948
949 memlen = var->xres_virtual * var->bits_per_pixel *
950 var->yres_virtual / 8;
951 if (memlen > vramlen) {
952 var->yres_virtual = vramlen * 8 /
953 (var->xres_virtual * var->bits_per_pixel);
954 memlen = var->xres_virtual * var->bits_per_pixel *
955 var->yres_virtual / 8;
956 }
957
958 /* we must round yres/xres down, we already rounded y/xres_virtual up
959 if it was possible. We should return -EINVAL, but I disagree */
960 if (var->yres_virtual < var->yres)
961 var->yres = var->yres_virtual;
962 if (var->xres_virtual < var->xres)
963 var->xres = var->xres_virtual;
964 if (var->xoffset + var->xres > var->xres_virtual)
965 var->xoffset = var->xres_virtual - var->xres;
966 if (var->yoffset + var->yres > var->yres_virtual)
967 var->yoffset = var->yres_virtual - var->yres;
968
969 return 0;
970}
971
972
973static int savagefb_decode_var(struct fb_var_screeninfo *var,
974 struct savagefb_par *par,
975 struct savage_reg *reg)
976{
977 struct xtimings timings;
978 int width, dclk, i, j; /*, refresh; */
979 unsigned int m, n, r;
980 unsigned char tmp = 0;
981 unsigned int pixclock = var->pixclock;
982
983 DBG("savagefb_decode_var");
984
985 memset(&timings, 0, sizeof(timings));
986
987 if (!pixclock) pixclock = 10000; /* 10ns = 100MHz */
988 timings.Clock = 1000000000 / pixclock;
989 if (timings.Clock < 1) timings.Clock = 1;
990 timings.dblscan = var->vmode & FB_VMODE_DOUBLE;
991 timings.interlaced = var->vmode & FB_VMODE_INTERLACED;
992 timings.HDisplay = var->xres;
993 timings.HSyncStart = timings.HDisplay + var->right_margin;
994 timings.HSyncEnd = timings.HSyncStart + var->hsync_len;
995 timings.HTotal = timings.HSyncEnd + var->left_margin;
996 timings.VDisplay = var->yres;
997 timings.VSyncStart = timings.VDisplay + var->lower_margin;
998 timings.VSyncEnd = timings.VSyncStart + var->vsync_len;
999 timings.VTotal = timings.VSyncEnd + var->upper_margin;
1000 timings.sync = var->sync;
1001
1002
1003 par->depth = var->bits_per_pixel;
1004 par->vwidth = var->xres_virtual;
1005
1006 if (var->bits_per_pixel == 16 && par->chip == S3_SAVAGE3D) {
1007 timings.HDisplay *= 2;
1008 timings.HSyncStart *= 2;
1009 timings.HSyncEnd *= 2;
1010 timings.HTotal *= 2;
1011 }
1012
1013 /*
1014 * This will allocate the datastructure and initialize all of the
1015 * generic VGA registers.
1016 */
1017 vgaHWInit(var, par, &timings, reg);
1018
1019 /* We need to set CR67 whether or not we use the BIOS. */
1020
1021 dclk = timings.Clock;
1022 reg->CR67 = 0x00;
1023
1024 switch(var->bits_per_pixel) {
1025 case 8:
1026 if ((par->chip == S3_SAVAGE2000) && (dclk >= 230000))
1027 reg->CR67 = 0x10; /* 8bpp, 2 pixels/clock */
1028 else
1029 reg->CR67 = 0x00; /* 8bpp, 1 pixel/clock */
1030 break;
1031 case 15:
1032 if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1033 ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
1034 reg->CR67 = 0x30; /* 15bpp, 2 pixel/clock */
1035 else
1036 reg->CR67 = 0x20; /* 15bpp, 1 pixels/clock */
1037 break;
1038 case 16:
1039 if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1040 ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
1041 reg->CR67 = 0x50; /* 16bpp, 2 pixel/clock */
1042 else
1043 reg->CR67 = 0x40; /* 16bpp, 1 pixels/clock */
1044 break;
1045 case 24:
1046 reg->CR67 = 0x70;
1047 break;
1048 case 32:
1049 reg->CR67 = 0xd0;
1050 break;
1051 }
1052
1053 /*
1054 * Either BIOS use is disabled, or we failed to find a suitable
1055 * match. Fall back to traditional register-crunching.
1056 */
1057
1058 vga_out8(0x3d4, 0x3a, par);
1059 tmp = vga_in8(0x3d5, par);
1060 if (1 /*FIXME:psav->pci_burst*/)
1061 reg->CR3A = (tmp & 0x7f) | 0x15;
1062 else
1063 reg->CR3A = tmp | 0x95;
1064
1065 reg->CR53 = 0x00;
1066 reg->CR31 = 0x8c;
1067 reg->CR66 = 0x89;
1068
1069 vga_out8(0x3d4, 0x58, par);
1070 reg->CR58 = vga_in8(0x3d5, par) & 0x80;
1071 reg->CR58 |= 0x13;
1072
1073 reg->SR15 = 0x03 | 0x80;
1074 reg->SR18 = 0x00;
1075 reg->CR43 = reg->CR45 = reg->CR65 = 0x00;
1076
1077 vga_out8(0x3d4, 0x40, par);
1078 reg->CR40 = vga_in8(0x3d5, par) & ~0x01;
1079
1080 reg->MMPR0 = 0x010400;
1081 reg->MMPR1 = 0x00;
1082 reg->MMPR2 = 0x0808;
1083 reg->MMPR3 = 0x08080810;
1084
1085 SavageCalcClock(dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r);
1086 /* m = 107; n = 4; r = 2; */
1087
1088 if (par->MCLK <= 0) {
1089 reg->SR10 = 255;
1090 reg->SR11 = 255;
1091 } else {
1092 common_calc_clock(par->MCLK, 1, 1, 31, 0, 3, 135000, 270000,
1093 &reg->SR11, &reg->SR10);
1094 /* reg->SR10 = 80; // MCLK == 286000 */
1095 /* reg->SR11 = 125; */
1096 }
1097
1098 reg->SR12 = (r << 6) | (n & 0x3f);
1099 reg->SR13 = m & 0xff;
1100 reg->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2;
1101
1102 if (var->bits_per_pixel < 24)
1103 reg->MMPR0 -= 0x8000;
1104 else
1105 reg->MMPR0 -= 0x4000;
1106
1107 if (timings.interlaced)
1108 reg->CR42 = 0x20;
1109 else
1110 reg->CR42 = 0x00;
1111
1112 reg->CR34 = 0x10; /* display fifo */
1113
1114 i = ((((timings.HTotal >> 3) - 5) & 0x100) >> 8) |
1115 ((((timings.HDisplay >> 3) - 1) & 0x100) >> 7) |
1116 ((((timings.HSyncStart >> 3) - 1) & 0x100) >> 6) |
1117 ((timings.HSyncStart & 0x800) >> 7);
1118
1119 if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 64)
1120 i |= 0x08;
1121 if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 32)
1122 i |= 0x20;
1123
1124 j = (reg->CRTC[0] + ((i & 0x01) << 8) +
1125 reg->CRTC[4] + ((i & 0x10) << 4) + 1) / 2;
1126
1127 if (j - (reg->CRTC[4] + ((i & 0x10) << 4)) < 4) {
1128 if (reg->CRTC[4] + ((i & 0x10) << 4) + 4 <=
1129 reg->CRTC[0] + ((i & 0x01) << 8))
1130 j = reg->CRTC[4] + ((i & 0x10) << 4) + 4;
1131 else
1132 j = reg->CRTC[0] + ((i & 0x01) << 8) + 1;
1133 }
1134
1135 reg->CR3B = j & 0xff;
1136 i |= (j & 0x100) >> 2;
1137 reg->CR3C = (reg->CRTC[0] + ((i & 0x01) << 8)) / 2;
1138 reg->CR5D = i;
1139 reg->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) |
1140 (((timings.VDisplay - 1) & 0x400) >> 9) |
1141 (((timings.VSyncStart) & 0x400) >> 8) |
1142 (((timings.VSyncStart) & 0x400) >> 6) | 0x40;
1143 width = (var->xres_virtual * ((var->bits_per_pixel+7) / 8)) >> 3;
1144 reg->CR91 = reg->CRTC[19] = 0xff & width;
1145 reg->CR51 = (0x300 & width) >> 4;
1146 reg->CR90 = 0x80 | (width >> 8);
1147 reg->MiscOutReg |= 0x0c;
1148
1149 /* Set frame buffer description. */
1150
1151 if (var->bits_per_pixel <= 8)
1152 reg->CR50 = 0;
1153 else if (var->bits_per_pixel <= 16)
1154 reg->CR50 = 0x10;
1155 else
1156 reg->CR50 = 0x30;
1157
1158 if (var->xres_virtual <= 640)
1159 reg->CR50 |= 0x40;
1160 else if (var->xres_virtual == 800)
1161 reg->CR50 |= 0x80;
1162 else if (var->xres_virtual == 1024)
1163 reg->CR50 |= 0x00;
1164 else if (var->xres_virtual == 1152)
1165 reg->CR50 |= 0x01;
1166 else if (var->xres_virtual == 1280)
1167 reg->CR50 |= 0xc0;
1168 else if (var->xres_virtual == 1600)
1169 reg->CR50 |= 0x81;
1170 else
1171 reg->CR50 |= 0xc1; /* Use GBD */
1172
1173 if (par->chip == S3_SAVAGE2000)
1174 reg->CR33 = 0x08;
1175 else
1176 reg->CR33 = 0x20;
1177
1178 reg->CRTC[0x17] = 0xeb;
1179
1180 reg->CR67 |= 1;
1181
1182 vga_out8(0x3d4, 0x36, par);
1183 reg->CR36 = vga_in8(0x3d5, par);
1184 vga_out8(0x3d4, 0x68, par);
1185 reg->CR68 = vga_in8(0x3d5, par);
1186 reg->CR69 = 0;
1187 vga_out8(0x3d4, 0x6f, par);
1188 reg->CR6F = vga_in8(0x3d5, par);
1189 vga_out8(0x3d4, 0x86, par);
1190 reg->CR86 = vga_in8(0x3d5, par);
1191 vga_out8(0x3d4, 0x88, par);
1192 reg->CR88 = vga_in8(0x3d5, par) | 0x08;
1193 vga_out8(0x3d4, 0xb0, par);
1194 reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
1195
1196 return 0;
1197}
1198
1199/* --------------------------------------------------------------------- */
1200
1201/*
1202 * Set a single color register. Return != 0 for invalid regno.
1203 */
1204static int savagefb_setcolreg(unsigned regno,
1205 unsigned red,
1206 unsigned green,
1207 unsigned blue,
1208 unsigned transp,
1209 struct fb_info *info)
1210{
1211 struct savagefb_par *par = info->par;
1212
1213 if (regno >= NR_PALETTE)
1214 return -EINVAL;
1215
1216 par->palette[regno].red = red;
1217 par->palette[regno].green = green;
1218 par->palette[regno].blue = blue;
1219 par->palette[regno].transp = transp;
1220
1221 switch (info->var.bits_per_pixel) {
1222 case 8:
1223 vga_out8(0x3c8, regno, par);
1224
1225 vga_out8(0x3c9, red >> 10, par);
1226 vga_out8(0x3c9, green >> 10, par);
1227 vga_out8(0x3c9, blue >> 10, par);
1228 break;
1229
1230 case 16:
1231 if (regno < 16)
1232 ((u32 *)info->pseudo_palette)[regno] =
1233 ((red & 0xf800) ) |
1234 ((green & 0xfc00) >> 5) |
1235 ((blue & 0xf800) >> 11);
1236 break;
1237
1238 case 24:
1239 if (regno < 16)
1240 ((u32 *)info->pseudo_palette)[regno] =
1241 ((red & 0xff00) << 8) |
1242 ((green & 0xff00) ) |
1243 ((blue & 0xff00) >> 8);
1244 break;
1245 case 32:
1246 if (regno < 16)
1247 ((u32 *)info->pseudo_palette)[regno] =
1248 ((transp & 0xff00) << 16) |
1249 ((red & 0xff00) << 8) |
1250 ((green & 0xff00) ) |
1251 ((blue & 0xff00) >> 8);
1252 break;
1253
1254 default:
1255 return 1;
1256 }
1257
1258 return 0;
1259}
1260
1261static void savagefb_set_par_int(struct savagefb_par *par, struct savage_reg *reg)
1262{
1263 unsigned char tmp, cr3a, cr66, cr67;
1264
1265 DBG("savagefb_set_par_int");
1266
1267 par->SavageWaitIdle(par);
1268
1269 vga_out8(0x3c2, 0x23, par);
1270
1271 vga_out16(0x3d4, 0x4838, par);
1272 vga_out16(0x3d4, 0xa539, par);
1273 vga_out16(0x3c4, 0x0608, par);
1274
1275 vgaHWProtect(par, 1);
1276
1277 /*
1278 * Some Savage/MX and /IX systems go nuts when trying to exit the
1279 * server after WindowMaker has displayed a gradient background. I
1280 * haven't been able to find what causes it, but a non-destructive
1281 * switch to mode 3 here seems to eliminate the issue.
1282 */
1283
1284 VerticalRetraceWait(par);
1285 vga_out8(0x3d4, 0x67, par);
1286 cr67 = vga_in8(0x3d5, par);
1287 vga_out8(0x3d5, cr67/*par->CR67*/ & ~0x0c, par); /* no STREAMS yet */
1288
1289 vga_out8(0x3d4, 0x23, par);
1290 vga_out8(0x3d5, 0x00, par);
1291 vga_out8(0x3d4, 0x26, par);
1292 vga_out8(0x3d5, 0x00, par);
1293
1294 /* restore extended regs */
1295 vga_out8(0x3d4, 0x66, par);
1296 vga_out8(0x3d5, reg->CR66, par);
1297 vga_out8(0x3d4, 0x3a, par);
1298 vga_out8(0x3d5, reg->CR3A, par);
1299 vga_out8(0x3d4, 0x31, par);
1300 vga_out8(0x3d5, reg->CR31, par);
1301 vga_out8(0x3d4, 0x32, par);
1302 vga_out8(0x3d5, reg->CR32, par);
1303 vga_out8(0x3d4, 0x58, par);
1304 vga_out8(0x3d5, reg->CR58, par);
1305 vga_out8(0x3d4, 0x53, par);
1306 vga_out8(0x3d5, reg->CR53 & 0x7f, par);
1307
1308 vga_out16(0x3c4, 0x0608, par);
1309
1310 /* Restore DCLK registers. */
1311
1312 vga_out8(0x3c4, 0x0e, par);
1313 vga_out8(0x3c5, reg->SR0E, par);
1314 vga_out8(0x3c4, 0x0f, par);
1315 vga_out8(0x3c5, reg->SR0F, par);
1316 vga_out8(0x3c4, 0x29, par);
1317 vga_out8(0x3c5, reg->SR29, par);
1318 vga_out8(0x3c4, 0x15, par);
1319 vga_out8(0x3c5, reg->SR15, par);
1320
1321 /* Restore flat panel expansion registers. */
1322 if (par->chip == S3_SAVAGE_MX) {
1323 int i;
1324
1325 for (i = 0; i < 8; i++) {
1326 vga_out8(0x3c4, 0x54+i, par);
1327 vga_out8(0x3c5, reg->SR54[i], par);
1328 }
1329 }
1330
1331 vgaHWRestore (par, reg);
1332
1333 /* extended mode timing registers */
1334 vga_out8(0x3d4, 0x53, par);
1335 vga_out8(0x3d5, reg->CR53, par);
1336 vga_out8(0x3d4, 0x5d, par);
1337 vga_out8(0x3d5, reg->CR5D, par);
1338 vga_out8(0x3d4, 0x5e, par);
1339 vga_out8(0x3d5, reg->CR5E, par);
1340 vga_out8(0x3d4, 0x3b, par);
1341 vga_out8(0x3d5, reg->CR3B, par);
1342 vga_out8(0x3d4, 0x3c, par);
1343 vga_out8(0x3d5, reg->CR3C, par);
1344 vga_out8(0x3d4, 0x43, par);
1345 vga_out8(0x3d5, reg->CR43, par);
1346 vga_out8(0x3d4, 0x65, par);
1347 vga_out8(0x3d5, reg->CR65, par);
1348
1349 /* restore the desired video mode with cr67 */
1350 vga_out8(0x3d4, 0x67, par);
1351 /* following part not present in X11 driver */
1352 cr67 = vga_in8(0x3d5, par) & 0xf;
1353 vga_out8(0x3d5, 0x50 | cr67, par);
1354 mdelay(10);
1355 vga_out8(0x3d4, 0x67, par);
1356 /* end of part */
1357 vga_out8(0x3d5, reg->CR67 & ~0x0c, par);
1358
1359 /* other mode timing and extended regs */
1360 vga_out8(0x3d4, 0x34, par);
1361 vga_out8(0x3d5, reg->CR34, par);
1362 vga_out8(0x3d4, 0x40, par);
1363 vga_out8(0x3d5, reg->CR40, par);
1364 vga_out8(0x3d4, 0x42, par);
1365 vga_out8(0x3d5, reg->CR42, par);
1366 vga_out8(0x3d4, 0x45, par);
1367 vga_out8(0x3d5, reg->CR45, par);
1368 vga_out8(0x3d4, 0x50, par);
1369 vga_out8(0x3d5, reg->CR50, par);
1370 vga_out8(0x3d4, 0x51, par);
1371 vga_out8(0x3d5, reg->CR51, par);
1372
1373 /* memory timings */
1374 vga_out8(0x3d4, 0x36, par);
1375 vga_out8(0x3d5, reg->CR36, par);
1376 vga_out8(0x3d4, 0x60, par);
1377 vga_out8(0x3d5, reg->CR60, par);
1378 vga_out8(0x3d4, 0x68, par);
1379 vga_out8(0x3d5, reg->CR68, par);
1380 vga_out8(0x3d4, 0x69, par);
1381 vga_out8(0x3d5, reg->CR69, par);
1382 vga_out8(0x3d4, 0x6f, par);
1383 vga_out8(0x3d5, reg->CR6F, par);
1384
1385 vga_out8(0x3d4, 0x33, par);
1386 vga_out8(0x3d5, reg->CR33, par);
1387 vga_out8(0x3d4, 0x86, par);
1388 vga_out8(0x3d5, reg->CR86, par);
1389 vga_out8(0x3d4, 0x88, par);
1390 vga_out8(0x3d5, reg->CR88, par);
1391 vga_out8(0x3d4, 0x90, par);
1392 vga_out8(0x3d5, reg->CR90, par);
1393 vga_out8(0x3d4, 0x91, par);
1394 vga_out8(0x3d5, reg->CR91, par);
1395
1396 if (par->chip == S3_SAVAGE4) {
1397 vga_out8(0x3d4, 0xb0, par);
1398 vga_out8(0x3d5, reg->CRB0, par);
1399 }
1400
1401 vga_out8(0x3d4, 0x32, par);
1402 vga_out8(0x3d5, reg->CR32, par);
1403
1404 /* unlock extended seq regs */
1405 vga_out8(0x3c4, 0x08, par);
1406 vga_out8(0x3c5, 0x06, par);
1407
1408 /* Restore extended sequencer regs for MCLK. SR10 == 255 indicates
1409 * that we should leave the default SR10 and SR11 values there.
1410 */
1411 if (reg->SR10 != 255) {
1412 vga_out8(0x3c4, 0x10, par);
1413 vga_out8(0x3c5, reg->SR10, par);
1414 vga_out8(0x3c4, 0x11, par);
1415 vga_out8(0x3c5, reg->SR11, par);
1416 }
1417
1418 /* restore extended seq regs for dclk */
1419 vga_out8(0x3c4, 0x0e, par);
1420 vga_out8(0x3c5, reg->SR0E, par);
1421 vga_out8(0x3c4, 0x0f, par);
1422 vga_out8(0x3c5, reg->SR0F, par);
1423 vga_out8(0x3c4, 0x12, par);
1424 vga_out8(0x3c5, reg->SR12, par);
1425 vga_out8(0x3c4, 0x13, par);
1426 vga_out8(0x3c5, reg->SR13, par);
1427 vga_out8(0x3c4, 0x29, par);
1428 vga_out8(0x3c5, reg->SR29, par);
1429 vga_out8(0x3c4, 0x18, par);
1430 vga_out8(0x3c5, reg->SR18, par);
1431
1432 /* load new m, n pll values for dclk & mclk */
1433 vga_out8(0x3c4, 0x15, par);
1434 tmp = vga_in8(0x3c5, par) & ~0x21;
1435
1436 vga_out8(0x3c5, tmp | 0x03, par);
1437 vga_out8(0x3c5, tmp | 0x23, par);
1438 vga_out8(0x3c5, tmp | 0x03, par);
1439 vga_out8(0x3c5, reg->SR15, par);
1440 udelay(100);
1441
1442 vga_out8(0x3c4, 0x30, par);
1443 vga_out8(0x3c5, reg->SR30, par);
1444 vga_out8(0x3c4, 0x08, par);
1445 vga_out8(0x3c5, reg->SR08, par);
1446
1447 /* now write out cr67 in full, possibly starting STREAMS */
1448 VerticalRetraceWait(par);
1449 vga_out8(0x3d4, 0x67, par);
1450 vga_out8(0x3d5, reg->CR67, par);
1451
1452 vga_out8(0x3d4, 0x66, par);
1453 cr66 = vga_in8(0x3d5, par);
1454 vga_out8(0x3d5, cr66 | 0x80, par);
1455 vga_out8(0x3d4, 0x3a, par);
1456 cr3a = vga_in8(0x3d5, par);
1457 vga_out8(0x3d5, cr3a | 0x80, par);
1458
1459 if (par->chip != S3_SAVAGE_MX) {
1460 VerticalRetraceWait(par);
1461 savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
1462 par->SavageWaitIdle(par);
1463 savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
1464 par->SavageWaitIdle(par);
1465 savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
1466 par->SavageWaitIdle(par);
1467 savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
1468 }
1469
1470 vga_out8(0x3d4, 0x66, par);
1471 vga_out8(0x3d5, cr66, par);
1472 vga_out8(0x3d4, 0x3a, par);
1473 vga_out8(0x3d5, cr3a, par);
1474
1475 SavageSetup2DEngine(par);
1476 vgaHWProtect(par, 0);
1477}
1478
1479static void savagefb_update_start(struct savagefb_par *par, int base)
1480{
1481 /* program the start address registers */
1482 vga_out16(0x3d4, (base & 0x00ff00) | 0x0c, par);
1483 vga_out16(0x3d4, ((base & 0x00ff) << 8) | 0x0d, par);
1484 vga_out8(0x3d4, 0x69, par);
1485 vga_out8(0x3d5, (base & 0x7f0000) >> 16, par);
1486}
1487
1488
1489static void savagefb_set_fix(struct fb_info *info)
1490{
1491 info->fix.line_length = info->var.xres_virtual *
1492 info->var.bits_per_pixel / 8;
1493
1494 if (info->var.bits_per_pixel == 8) {
1495 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1496 info->fix.xpanstep = 4;
1497 } else {
1498 info->fix.visual = FB_VISUAL_TRUECOLOR;
1499 info->fix.xpanstep = 2;
1500 }
1501
1502}
1503
1504static int savagefb_set_par(struct fb_info *info)
1505{
1506 struct savagefb_par *par = info->par;
1507 struct fb_var_screeninfo *var = &info->var;
1508 int err;
1509
1510 DBG("savagefb_set_par");
1511 err = savagefb_decode_var(var, par, &par->state);
1512 if (err)
1513 return err;
1514
1515 if (par->dacSpeedBpp <= 0) {
1516 if (var->bits_per_pixel > 24)
1517 par->dacSpeedBpp = par->clock[3];
1518 else if (var->bits_per_pixel >= 24)
1519 par->dacSpeedBpp = par->clock[2];
1520 else if ((var->bits_per_pixel > 8) && (var->bits_per_pixel < 24))
1521 par->dacSpeedBpp = par->clock[1];
1522 else if (var->bits_per_pixel <= 8)
1523 par->dacSpeedBpp = par->clock[0];
1524 }
1525
1526 /* Set ramdac limits */
1527 par->maxClock = par->dacSpeedBpp;
1528 par->minClock = 10000;
1529
1530 savagefb_set_par_int(par, &par->state);
1531 fb_set_cmap(&info->cmap, info);
1532 savagefb_set_fix(info);
1533 savagefb_set_clip(info);
1534
1535 SavagePrintRegs(par);
1536 return 0;
1537}
1538
1539/*
1540 * Pan or Wrap the Display
1541 */
1542static int savagefb_pan_display(struct fb_var_screeninfo *var,
1543 struct fb_info *info)
1544{
1545 struct savagefb_par *par = info->par;
1546 int base;
1547
1548 base = (var->yoffset * info->fix.line_length
1549 + (var->xoffset & ~1) * ((info->var.bits_per_pixel+7) / 8)) >> 2;
1550
1551 savagefb_update_start(par, base);
1552 return 0;
1553}
1554
1555static int savagefb_blank(int blank, struct fb_info *info)
1556{
1557 struct savagefb_par *par = info->par;
1558 u8 sr8 = 0, srd = 0;
1559
1560 if (par->display_type == DISP_CRT) {
1561 vga_out8(0x3c4, 0x08, par);
1562 sr8 = vga_in8(0x3c5, par);
1563 sr8 |= 0x06;
1564 vga_out8(0x3c5, sr8, par);
1565 vga_out8(0x3c4, 0x0d, par);
1566 srd = vga_in8(0x3c5, par);
1567 srd &= 0x50;
1568
1569 switch (blank) {
1570 case FB_BLANK_UNBLANK:
1571 case FB_BLANK_NORMAL:
1572 break;
1573 case FB_BLANK_VSYNC_SUSPEND:
1574 srd |= 0x10;
1575 break;
1576 case FB_BLANK_HSYNC_SUSPEND:
1577 srd |= 0x40;
1578 break;
1579 case FB_BLANK_POWERDOWN:
1580 srd |= 0x50;
1581 break;
1582 }
1583
1584 vga_out8(0x3c4, 0x0d, par);
1585 vga_out8(0x3c5, srd, par);
1586 }
1587
1588 if (par->display_type == DISP_LCD ||
1589 par->display_type == DISP_DFP) {
1590 switch(blank) {
1591 case FB_BLANK_UNBLANK:
1592 case FB_BLANK_NORMAL:
1593 vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
1594 vga_out8(0x3c5, vga_in8(0x3c5, par) | 0x10, par);
1595 break;
1596 case FB_BLANK_VSYNC_SUSPEND:
1597 case FB_BLANK_HSYNC_SUSPEND:
1598 case FB_BLANK_POWERDOWN:
1599 vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
1600 vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x10, par);
1601 break;
1602 }
1603 }
1604
1605 return (blank == FB_BLANK_NORMAL) ? 1 : 0;
1606}
1607
1608static int savagefb_open(struct fb_info *info, int user)
1609{
1610 struct savagefb_par *par = info->par;
1611
1612 mutex_lock(&par->open_lock);
1613
1614 if (!par->open_count) {
1615 memset(&par->vgastate, 0, sizeof(par->vgastate));
1616 par->vgastate.flags = VGA_SAVE_CMAP | VGA_SAVE_FONTS |
1617 VGA_SAVE_MODE;
1618 par->vgastate.vgabase = par->mmio.vbase + 0x8000;
1619 save_vga(&par->vgastate);
1620 savage_get_default_par(par, &par->initial);
1621 }
1622
1623 par->open_count++;
1624 mutex_unlock(&par->open_lock);
1625 return 0;
1626}
1627
1628static int savagefb_release(struct fb_info *info, int user)
1629{
1630 struct savagefb_par *par = info->par;
1631
1632 mutex_lock(&par->open_lock);
1633
1634 if (par->open_count == 1) {
1635 savage_set_default_par(par, &par->initial);
1636 restore_vga(&par->vgastate);
1637 }
1638
1639 par->open_count--;
1640 mutex_unlock(&par->open_lock);
1641 return 0;
1642}
1643
1644static struct fb_ops savagefb_ops = {
1645 .owner = THIS_MODULE,
1646 .fb_open = savagefb_open,
1647 .fb_release = savagefb_release,
1648 .fb_check_var = savagefb_check_var,
1649 .fb_set_par = savagefb_set_par,
1650 .fb_setcolreg = savagefb_setcolreg,
1651 .fb_pan_display = savagefb_pan_display,
1652 .fb_blank = savagefb_blank,
1653#if defined(CONFIG_FB_SAVAGE_ACCEL)
1654 .fb_fillrect = savagefb_fillrect,
1655 .fb_copyarea = savagefb_copyarea,
1656 .fb_imageblit = savagefb_imageblit,
1657 .fb_sync = savagefb_sync,
1658#else
1659 .fb_fillrect = cfb_fillrect,
1660 .fb_copyarea = cfb_copyarea,
1661 .fb_imageblit = cfb_imageblit,
1662#endif
1663};
1664
1665/* --------------------------------------------------------------------- */
1666
1667static struct fb_var_screeninfo savagefb_var800x600x8 = {
1668 .accel_flags = FB_ACCELF_TEXT,
1669 .xres = 800,
1670 .yres = 600,
1671 .xres_virtual = 800,
1672 .yres_virtual = 600,
1673 .bits_per_pixel = 8,
1674 .pixclock = 25000,
1675 .left_margin = 88,
1676 .right_margin = 40,
1677 .upper_margin = 23,
1678 .lower_margin = 1,
1679 .hsync_len = 128,
1680 .vsync_len = 4,
1681 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
1682 .vmode = FB_VMODE_NONINTERLACED
1683};
1684
1685static void savage_enable_mmio(struct savagefb_par *par)
1686{
1687 unsigned char val;
1688
1689 DBG("savage_enable_mmio\n");
1690
1691 val = vga_in8(0x3c3, par);
1692 vga_out8(0x3c3, val | 0x01, par);
1693 val = vga_in8(0x3cc, par);
1694 vga_out8(0x3c2, val | 0x01, par);
1695
1696 if (par->chip >= S3_SAVAGE4) {
1697 vga_out8(0x3d4, 0x40, par);
1698 val = vga_in8(0x3d5, par);
1699 vga_out8(0x3d5, val | 1, par);
1700 }
1701}
1702
1703
1704static void savage_disable_mmio(struct savagefb_par *par)
1705{
1706 unsigned char val;
1707
1708 DBG("savage_disable_mmio\n");
1709
1710 if (par->chip >= S3_SAVAGE4) {
1711 vga_out8(0x3d4, 0x40, par);
1712 val = vga_in8(0x3d5, par);
1713 vga_out8(0x3d5, val | 1, par);
1714 }
1715}
1716
1717
1718static int savage_map_mmio(struct fb_info *info)
1719{
1720 struct savagefb_par *par = info->par;
1721 DBG("savage_map_mmio");
1722
1723 if (S3_SAVAGE3D_SERIES(par->chip))
1724 par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
1725 SAVAGE_NEWMMIO_REGBASE_S3;
1726 else
1727 par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
1728 SAVAGE_NEWMMIO_REGBASE_S4;
1729
1730 par->mmio.len = SAVAGE_NEWMMIO_REGSIZE;
1731
1732 par->mmio.vbase = ioremap(par->mmio.pbase, par->mmio.len);
1733 if (!par->mmio.vbase) {
1734 printk("savagefb: unable to map memory mapped IO\n");
1735 return -ENOMEM;
1736 } else
1737 printk(KERN_INFO "savagefb: mapped io at %p\n",
1738 par->mmio.vbase);
1739
1740 info->fix.mmio_start = par->mmio.pbase;
1741 info->fix.mmio_len = par->mmio.len;
1742
1743 par->bci_base = (u32 __iomem *)(par->mmio.vbase + BCI_BUFFER_OFFSET);
1744 par->bci_ptr = 0;
1745
1746 savage_enable_mmio(par);
1747
1748 return 0;
1749}
1750
1751static void savage_unmap_mmio(struct fb_info *info)
1752{
1753 struct savagefb_par *par = info->par;
1754 DBG("savage_unmap_mmio");
1755
1756 savage_disable_mmio(par);
1757
1758 if (par->mmio.vbase) {
1759 iounmap(par->mmio.vbase);
1760 par->mmio.vbase = NULL;
1761 }
1762}
1763
1764static int savage_map_video(struct fb_info *info, int video_len)
1765{
1766 struct savagefb_par *par = info->par;
1767 int resource;
1768
1769 DBG("savage_map_video");
1770
1771 if (S3_SAVAGE3D_SERIES(par->chip))
1772 resource = 0;
1773 else
1774 resource = 1;
1775
1776 par->video.pbase = pci_resource_start(par->pcidev, resource);
1777 par->video.len = video_len;
1778 par->video.vbase = ioremap(par->video.pbase, par->video.len);
1779
1780 if (!par->video.vbase) {
1781 printk("savagefb: unable to map screen memory\n");
1782 return -ENOMEM;
1783 } else
1784 printk(KERN_INFO "savagefb: mapped framebuffer at %p, "
1785 "pbase == %x\n", par->video.vbase, par->video.pbase);
1786
1787 info->fix.smem_start = par->video.pbase;
1788 info->fix.smem_len = par->video.len - par->cob_size;
1789 info->screen_base = par->video.vbase;
1790
1791#ifdef CONFIG_MTRR
1792 par->video.mtrr = mtrr_add(par->video.pbase, video_len,
1793 MTRR_TYPE_WRCOMB, 1);
1794#endif
1795
1796 /* Clear framebuffer, it's all white in memory after boot */
1797 memset_io(par->video.vbase, 0, par->video.len);
1798
1799 return 0;
1800}
1801
1802static void savage_unmap_video(struct fb_info *info)
1803{
1804 struct savagefb_par *par = info->par;
1805
1806 DBG("savage_unmap_video");
1807
1808 if (par->video.vbase) {
1809#ifdef CONFIG_MTRR
1810 mtrr_del(par->video.mtrr, par->video.pbase, par->video.len);
1811#endif
1812
1813 iounmap(par->video.vbase);
1814 par->video.vbase = NULL;
1815 info->screen_base = NULL;
1816 }
1817}
1818
1819static int savage_init_hw(struct savagefb_par *par)
1820{
1821 unsigned char config1, m, n, n1, n2, sr8, cr3f, cr66 = 0, tmp;
1822
1823 static unsigned char RamSavage3D[] = { 8, 4, 4, 2 };
1824 static unsigned char RamSavage4[] = { 2, 4, 8, 12, 16, 32, 64, 32 };
1825 static unsigned char RamSavageMX[] = { 2, 8, 4, 16, 8, 16, 4, 16 };
1826 static unsigned char RamSavageNB[] = { 0, 2, 4, 8, 16, 32, 2, 2 };
1827 int videoRam, videoRambytes, dvi;
1828
1829 DBG("savage_init_hw");
1830
1831 /* unprotect CRTC[0-7] */
1832 vga_out8(0x3d4, 0x11, par);
1833 tmp = vga_in8(0x3d5, par);
1834 vga_out8(0x3d5, tmp & 0x7f, par);
1835
1836 /* unlock extended regs */
1837 vga_out16(0x3d4, 0x4838, par);
1838 vga_out16(0x3d4, 0xa039, par);
1839 vga_out16(0x3c4, 0x0608, par);
1840
1841 vga_out8(0x3d4, 0x40, par);
1842 tmp = vga_in8(0x3d5, par);
1843 vga_out8(0x3d5, tmp & ~0x01, par);
1844
1845 /* unlock sys regs */
1846 vga_out8(0x3d4, 0x38, par);
1847 vga_out8(0x3d5, 0x48, par);
1848
1849 /* Unlock system registers. */
1850 vga_out16(0x3d4, 0x4838, par);
1851
1852 /* Next go on to detect amount of installed ram */
1853
1854 vga_out8(0x3d4, 0x36, par); /* for register CR36 (CONFG_REG1), */
1855 config1 = vga_in8(0x3d5, par); /* get amount of vram installed */
1856
1857 /* Compute the amount of video memory and offscreen memory. */
1858
1859 switch (par->chip) {
1860 case S3_SAVAGE3D:
1861 videoRam = RamSavage3D[(config1 & 0xC0) >> 6 ] * 1024;
1862 break;
1863
1864 case S3_SAVAGE4:
1865 /*
1866 * The Savage4 has one ugly special case to consider. On
1867 * systems with 4 banks of 2Mx32 SDRAM, the BIOS says 4MB
1868 * when it really means 8MB. Why do it the same when you
1869 * can do it different...
1870 */
1871 vga_out8(0x3d4, 0x68, par); /* memory control 1 */
1872 if ((vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6))
1873 RamSavage4[1] = 8;
1874
1875 /*FALLTHROUGH*/
1876
1877 case S3_SAVAGE2000:
1878 videoRam = RamSavage4[(config1 & 0xE0) >> 5] * 1024;
1879 break;
1880
1881 case S3_SAVAGE_MX:
1882 case S3_SUPERSAVAGE:
1883 videoRam = RamSavageMX[(config1 & 0x0E) >> 1] * 1024;
1884 break;
1885
1886 case S3_PROSAVAGE:
1887 case S3_PROSAVAGEDDR:
1888 case S3_TWISTER:
1889 videoRam = RamSavageNB[(config1 & 0xE0) >> 5] * 1024;
1890 break;
1891
1892 default:
1893 /* How did we get here? */
1894 videoRam = 0;
1895 break;
1896 }
1897
1898 videoRambytes = videoRam * 1024;
1899
1900 printk(KERN_INFO "savagefb: probed videoram: %dk\n", videoRam);
1901
1902 /* reset graphics engine to avoid memory corruption */
1903 vga_out8(0x3d4, 0x66, par);
1904 cr66 = vga_in8(0x3d5, par);
1905 vga_out8(0x3d5, cr66 | 0x02, par);
1906 mdelay(10);
1907
1908 vga_out8(0x3d4, 0x66, par);
1909 vga_out8(0x3d5, cr66 & ~0x02, par); /* clear reset flag */
1910 mdelay(10);
1911
1912
1913 /*
1914 * reset memory interface, 3D engine, AGP master, PCI master,
1915 * master engine unit, motion compensation/LPB
1916 */
1917 vga_out8(0x3d4, 0x3f, par);
1918 cr3f = vga_in8(0x3d5, par);
1919 vga_out8(0x3d5, cr3f | 0x08, par);
1920 mdelay(10);
1921
1922 vga_out8(0x3d4, 0x3f, par);
1923 vga_out8(0x3d5, cr3f & ~0x08, par); /* clear reset flags */
1924 mdelay(10);
1925
1926 /* Savage ramdac speeds */
1927 par->numClocks = 4;
1928 par->clock[0] = 250000;
1929 par->clock[1] = 250000;
1930 par->clock[2] = 220000;
1931 par->clock[3] = 220000;
1932
1933 /* detect current mclk */
1934 vga_out8(0x3c4, 0x08, par);
1935 sr8 = vga_in8(0x3c5, par);
1936 vga_out8(0x3c5, 0x06, par);
1937 vga_out8(0x3c4, 0x10, par);
1938 n = vga_in8(0x3c5, par);
1939 vga_out8(0x3c4, 0x11, par);
1940 m = vga_in8(0x3c5, par);
1941 vga_out8(0x3c4, 0x08, par);
1942 vga_out8(0x3c5, sr8, par);
1943 m &= 0x7f;
1944 n1 = n & 0x1f;
1945 n2 = (n >> 5) & 0x03;
1946 par->MCLK = ((1431818 * (m+2)) / (n1+2) / (1 << n2) + 50) / 100;
1947 printk(KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n",
1948 par->MCLK);
1949
1950 /* check for DVI/flat panel */
1951 dvi = 0;
1952
1953 if (par->chip == S3_SAVAGE4) {
1954 unsigned char sr30 = 0x00;
1955
1956 vga_out8(0x3c4, 0x30, par);
1957 /* clear bit 1 */
1958 vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x02, par);
1959 sr30 = vga_in8(0x3c5, par);
1960 if (sr30 & 0x02 /*0x04 */) {
1961 dvi = 1;
1962 printk("savagefb: Digital Flat Panel Detected\n");
1963 }
1964 }
1965
1966 if ((S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1967 S3_MOBILE_TWISTER_SERIES(par->chip)) && !par->crtonly)
1968 par->display_type = DISP_LCD;
1969 else if (dvi || (par->chip == S3_SAVAGE4 && par->dvi))
1970 par->display_type = DISP_DFP;
1971 else
1972 par->display_type = DISP_CRT;
1973
1974 /* Check LCD panel parrmation */
1975
1976 if (par->display_type == DISP_LCD) {
1977 unsigned char cr6b = VGArCR(0x6b, par);
1978
1979 int panelX = (VGArSEQ(0x61, par) +
1980 ((VGArSEQ(0x66, par) & 0x02) << 7) + 1) * 8;
1981 int panelY = (VGArSEQ(0x69, par) +
1982 ((VGArSEQ(0x6e, par) & 0x70) << 4) + 1);
1983
1984 char * sTechnology = "Unknown";
1985
1986 /* OK, I admit it. I don't know how to limit the max dot clock
1987 * for LCD panels of various sizes. I thought I copied the
1988 * formula from the BIOS, but many users have parrmed me of
1989 * my folly.
1990 *
1991 * Instead, I'll abandon any attempt to automatically limit the
1992 * clock, and add an LCDClock option to XF86Config. Some day,
1993 * I should come back to this.
1994 */
1995
1996 enum ACTIVE_DISPLAYS { /* These are the bits in CR6B */
1997 ActiveCRT = 0x01,
1998 ActiveLCD = 0x02,
1999 ActiveTV = 0x04,
2000 ActiveCRT2 = 0x20,
2001 ActiveDUO = 0x80
2002 };
2003
2004 if ((VGArSEQ(0x39, par) & 0x03) == 0) {
2005 sTechnology = "TFT";
2006 } else if ((VGArSEQ(0x30, par) & 0x01) == 0) {
2007 sTechnology = "DSTN";
2008 } else {
2009 sTechnology = "STN";
2010 }
2011
2012 printk(KERN_INFO "savagefb: %dx%d %s LCD panel detected %s\n",
2013 panelX, panelY, sTechnology,
2014 cr6b & ActiveLCD ? "and active" : "but not active");
2015
2016 if (cr6b & ActiveLCD) {
2017 /*
2018 * If the LCD is active and panel expansion is enabled,
2019 * we probably want to kill the HW cursor.
2020 */
2021
2022 printk(KERN_INFO "savagefb: Limiting video mode to "
2023 "%dx%d\n", panelX, panelY);
2024
2025 par->SavagePanelWidth = panelX;
2026 par->SavagePanelHeight = panelY;
2027
2028 } else
2029 par->display_type = DISP_CRT;
2030 }
2031
2032 savage_get_default_par(par, &par->state);
2033 par->save = par->state;
2034
2035 if (S3_SAVAGE4_SERIES(par->chip)) {
2036 /*
2037 * The Savage4 and ProSavage have COB coherency bugs which
2038 * render the buffer useless. We disable it.
2039 */
2040 par->cob_index = 2;
2041 par->cob_size = 0x8000 << par->cob_index;
2042 par->cob_offset = videoRambytes;
2043 } else {
2044 /* We use 128kB for the COB on all chips. */
2045
2046 par->cob_index = 7;
2047 par->cob_size = 0x400 << par->cob_index;
2048 par->cob_offset = videoRambytes - par->cob_size;
2049 }
2050
2051 return videoRambytes;
2052}
2053
2054static int savage_init_fb_info(struct fb_info *info, struct pci_dev *dev,
2055 const struct pci_device_id *id)
2056{
2057 struct savagefb_par *par = info->par;
2058 int err = 0;
2059
2060 par->pcidev = dev;
2061
2062 info->fix.type = FB_TYPE_PACKED_PIXELS;
2063 info->fix.type_aux = 0;
2064 info->fix.ypanstep = 1;
2065 info->fix.ywrapstep = 0;
2066 info->fix.accel = id->driver_data;
2067
2068 switch (info->fix.accel) {
2069 case FB_ACCEL_SUPERSAVAGE:
2070 par->chip = S3_SUPERSAVAGE;
2071 snprintf(info->fix.id, 16, "SuperSavage");
2072 break;
2073 case FB_ACCEL_SAVAGE4:
2074 par->chip = S3_SAVAGE4;
2075 snprintf(info->fix.id, 16, "Savage4");
2076 break;
2077 case FB_ACCEL_SAVAGE3D:
2078 par->chip = S3_SAVAGE3D;
2079 snprintf(info->fix.id, 16, "Savage3D");
2080 break;
2081 case FB_ACCEL_SAVAGE3D_MV:
2082 par->chip = S3_SAVAGE3D;
2083 snprintf(info->fix.id, 16, "Savage3D-MV");
2084 break;
2085 case FB_ACCEL_SAVAGE2000:
2086 par->chip = S3_SAVAGE2000;
2087 snprintf(info->fix.id, 16, "Savage2000");
2088 break;
2089 case FB_ACCEL_SAVAGE_MX_MV:
2090 par->chip = S3_SAVAGE_MX;
2091 snprintf(info->fix.id, 16, "Savage/MX-MV");
2092 break;
2093 case FB_ACCEL_SAVAGE_MX:
2094 par->chip = S3_SAVAGE_MX;
2095 snprintf(info->fix.id, 16, "Savage/MX");
2096 break;
2097 case FB_ACCEL_SAVAGE_IX_MV:
2098 par->chip = S3_SAVAGE_MX;
2099 snprintf(info->fix.id, 16, "Savage/IX-MV");
2100 break;
2101 case FB_ACCEL_SAVAGE_IX:
2102 par->chip = S3_SAVAGE_MX;
2103 snprintf(info->fix.id, 16, "Savage/IX");
2104 break;
2105 case FB_ACCEL_PROSAVAGE_PM:
2106 par->chip = S3_PROSAVAGE;
2107 snprintf(info->fix.id, 16, "ProSavagePM");
2108 break;
2109 case FB_ACCEL_PROSAVAGE_KM:
2110 par->chip = S3_PROSAVAGE;
2111 snprintf(info->fix.id, 16, "ProSavageKM");
2112 break;
2113 case FB_ACCEL_S3TWISTER_P:
2114 par->chip = S3_TWISTER;
2115 snprintf(info->fix.id, 16, "TwisterP");
2116 break;
2117 case FB_ACCEL_S3TWISTER_K:
2118 par->chip = S3_TWISTER;
2119 snprintf(info->fix.id, 16, "TwisterK");
2120 break;
2121 case FB_ACCEL_PROSAVAGE_DDR:
2122 par->chip = S3_PROSAVAGEDDR;
2123 snprintf(info->fix.id, 16, "ProSavageDDR");
2124 break;
2125 case FB_ACCEL_PROSAVAGE_DDRK:
2126 par->chip = S3_PROSAVAGEDDR;
2127 snprintf(info->fix.id, 16, "ProSavage8");
2128 break;
2129 }
2130
2131 if (S3_SAVAGE3D_SERIES(par->chip)) {
2132 par->SavageWaitIdle = savage3D_waitidle;
2133 par->SavageWaitFifo = savage3D_waitfifo;
2134 } else if (S3_SAVAGE4_SERIES(par->chip) ||
2135 S3_SUPERSAVAGE == par->chip) {
2136 par->SavageWaitIdle = savage4_waitidle;
2137 par->SavageWaitFifo = savage4_waitfifo;
2138 } else {
2139 par->SavageWaitIdle = savage2000_waitidle;
2140 par->SavageWaitFifo = savage2000_waitfifo;
2141 }
2142
2143 info->var.nonstd = 0;
2144 info->var.activate = FB_ACTIVATE_NOW;
2145 info->var.width = -1;
2146 info->var.height = -1;
2147 info->var.accel_flags = 0;
2148
2149 info->fbops = &savagefb_ops;
2150 info->flags = FBINFO_DEFAULT |
2151 FBINFO_HWACCEL_YPAN |
2152 FBINFO_HWACCEL_XPAN;
2153
2154 info->pseudo_palette = par->pseudo_palette;
2155
2156#if defined(CONFIG_FB_SAVAGE_ACCEL)
2157 /* FIFO size + padding for commands */
2158 info->pixmap.addr = kcalloc(8, 1024, GFP_KERNEL);
2159
2160 err = -ENOMEM;
2161 if (info->pixmap.addr) {
2162 info->pixmap.size = 8*1024;
2163 info->pixmap.scan_align = 4;
2164 info->pixmap.buf_align = 4;
2165 info->pixmap.access_align = 32;
2166
2167 err = fb_alloc_cmap(&info->cmap, NR_PALETTE, 0);
2168 if (!err)
2169 info->flags |= FBINFO_HWACCEL_COPYAREA |
2170 FBINFO_HWACCEL_FILLRECT |
2171 FBINFO_HWACCEL_IMAGEBLIT;
2172 }
2173#endif
2174 return err;
2175}
2176
2177/* --------------------------------------------------------------------- */
2178
2179static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
2180{
2181 struct fb_info *info;
2182 struct savagefb_par *par;
2183 u_int h_sync, v_sync;
2184 int err, lpitch;
2185 int video_len;
2186
2187 DBG("savagefb_probe");
2188
2189 info = framebuffer_alloc(sizeof(struct savagefb_par), &dev->dev);
2190 if (!info)
2191 return -ENOMEM;
2192 par = info->par;
2193 mutex_init(&par->open_lock);
2194 err = pci_enable_device(dev);
2195 if (err)
2196 goto failed_enable;
2197
2198 if ((err = pci_request_regions(dev, "savagefb"))) {
2199 printk(KERN_ERR "cannot request PCI regions\n");
2200 goto failed_enable;
2201 }
2202
2203 err = -ENOMEM;
2204
2205 if ((err = savage_init_fb_info(info, dev, id)))
2206 goto failed_init;
2207
2208 err = savage_map_mmio(info);
2209 if (err)
2210 goto failed_mmio;
2211
2212 video_len = savage_init_hw(par);
2213 /* FIXME: can't be negative */
2214 if (video_len < 0) {
2215 err = video_len;
2216 goto failed_mmio;
2217 }
2218
2219 err = savage_map_video(info, video_len);
2220 if (err)
2221 goto failed_video;
2222
2223 INIT_LIST_HEAD(&info->modelist);
2224#if defined(CONFIG_FB_SAVAGE_I2C)
2225 savagefb_create_i2c_busses(info);
2226 savagefb_probe_i2c_connector(info, &par->edid);
2227 fb_edid_to_monspecs(par->edid, &info->monspecs);
2228 kfree(par->edid);
2229 fb_videomode_to_modelist(info->monspecs.modedb,
2230 info->monspecs.modedb_len,
2231 &info->modelist);
2232#endif
2233 info->var = savagefb_var800x600x8;
2234 /* if a panel was detected, default to a CVT mode instead */
2235 if (par->SavagePanelWidth) {
2236 struct fb_videomode cvt_mode;
2237
2238 memset(&cvt_mode, 0, sizeof(cvt_mode));
2239 cvt_mode.xres = par->SavagePanelWidth;
2240 cvt_mode.yres = par->SavagePanelHeight;
2241 cvt_mode.refresh = 60;
2242 /* FIXME: if we know there is only the panel
2243 * we can enable reduced blanking as well */
2244 if (fb_find_mode_cvt(&cvt_mode, 0, 0))
2245 printk(KERN_WARNING "No CVT mode found for panel\n");
2246 else if (fb_find_mode(&info->var, info, NULL, NULL, 0,
2247 &cvt_mode, 0) != 3)
2248 info->var = savagefb_var800x600x8;
2249 }
2250
2251 if (mode_option) {
2252 fb_find_mode(&info->var, info, mode_option,
2253 info->monspecs.modedb, info->monspecs.modedb_len,
2254 NULL, 8);
2255 } else if (info->monspecs.modedb != NULL) {
2256 const struct fb_videomode *mode;
2257
2258 mode = fb_find_best_display(&info->monspecs, &info->modelist);
2259 savage_update_var(&info->var, mode);
2260 }
2261
2262 /* maximize virtual vertical length */
2263 lpitch = info->var.xres_virtual*((info->var.bits_per_pixel + 7) >> 3);
2264 info->var.yres_virtual = info->fix.smem_len/lpitch;
2265
2266 if (info->var.yres_virtual < info->var.yres) {
2267 err = -ENOMEM;
2268 goto failed;
2269 }
2270
2271#if defined(CONFIG_FB_SAVAGE_ACCEL)
2272 /*
2273 * The clipping coordinates are masked with 0xFFF, so limit our
2274 * virtual resolutions to these sizes.
2275 */
2276 if (info->var.yres_virtual > 0x1000)
2277 info->var.yres_virtual = 0x1000;
2278
2279 if (info->var.xres_virtual > 0x1000)
2280 info->var.xres_virtual = 0x1000;
2281#endif
2282 savagefb_check_var(&info->var, info);
2283 savagefb_set_fix(info);
2284
2285 /*
2286 * Calculate the hsync and vsync frequencies. Note that
2287 * we split the 1e12 constant up so that we can preserve
2288 * the precision and fit the results into 32-bit registers.
2289 * (1953125000 * 512 = 1e12)
2290 */
2291 h_sync = 1953125000 / info->var.pixclock;
2292 h_sync = h_sync * 512 / (info->var.xres + info->var.left_margin +
2293 info->var.right_margin +
2294 info->var.hsync_len);
2295 v_sync = h_sync / (info->var.yres + info->var.upper_margin +
2296 info->var.lower_margin + info->var.vsync_len);
2297
2298 printk(KERN_INFO "savagefb v" SAVAGEFB_VERSION ": "
2299 "%dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n",
2300 info->fix.smem_len >> 10,
2301 info->var.xres, info->var.yres,
2302 h_sync / 1000, h_sync % 1000, v_sync);
2303
2304
2305 fb_destroy_modedb(info->monspecs.modedb);
2306 info->monspecs.modedb = NULL;
2307
2308 err = register_framebuffer(info);
2309 if (err < 0)
2310 goto failed;
2311
2312 printk(KERN_INFO "fb: S3 %s frame buffer device\n",
2313 info->fix.id);
2314
2315 /*
2316 * Our driver data
2317 */
2318 pci_set_drvdata(dev, info);
2319
2320 return 0;
2321
2322 failed:
2323#ifdef CONFIG_FB_SAVAGE_I2C
2324 savagefb_delete_i2c_busses(info);
2325#endif
2326 fb_alloc_cmap(&info->cmap, 0, 0);
2327 savage_unmap_video(info);
2328 failed_video:
2329 savage_unmap_mmio(info);
2330 failed_mmio:
2331 kfree(info->pixmap.addr);
2332 failed_init:
2333 pci_release_regions(dev);
2334 failed_enable:
2335 framebuffer_release(info);
2336
2337 return err;
2338}
2339
2340static void savagefb_remove(struct pci_dev *dev)
2341{
2342 struct fb_info *info = pci_get_drvdata(dev);
2343
2344 DBG("savagefb_remove");
2345
2346 if (info) {
2347 /*
2348 * If unregister_framebuffer fails, then
2349 * we will be leaving hooks that could cause
2350 * oopsen laying around.
2351 */
2352 if (unregister_framebuffer(info))
2353 printk(KERN_WARNING "savagefb: danger danger! "
2354 "Oopsen imminent!\n");
2355
2356#ifdef CONFIG_FB_SAVAGE_I2C
2357 savagefb_delete_i2c_busses(info);
2358#endif
2359 fb_alloc_cmap(&info->cmap, 0, 0);
2360 savage_unmap_video(info);
2361 savage_unmap_mmio(info);
2362 kfree(info->pixmap.addr);
2363 pci_release_regions(dev);
2364 framebuffer_release(info);
2365 }
2366}
2367
2368static int savagefb_suspend(struct pci_dev *dev, pm_message_t mesg)
2369{
2370 struct fb_info *info = pci_get_drvdata(dev);
2371 struct savagefb_par *par = info->par;
2372
2373 DBG("savagefb_suspend");
2374
2375 if (mesg.event == PM_EVENT_PRETHAW)
2376 mesg.event = PM_EVENT_FREEZE;
2377 par->pm_state = mesg.event;
2378 dev->dev.power.power_state = mesg;
2379
2380 /*
2381 * For PM_EVENT_FREEZE, do not power down so the console
2382 * can remain active.
2383 */
2384 if (mesg.event == PM_EVENT_FREEZE)
2385 return 0;
2386
2387 console_lock();
2388 fb_set_suspend(info, 1);
2389
2390 if (info->fbops->fb_sync)
2391 info->fbops->fb_sync(info);
2392
2393 savagefb_blank(FB_BLANK_POWERDOWN, info);
2394 savage_set_default_par(par, &par->save);
2395 savage_disable_mmio(par);
2396 pci_save_state(dev);
2397 pci_disable_device(dev);
2398 pci_set_power_state(dev, pci_choose_state(dev, mesg));
2399 console_unlock();
2400
2401 return 0;
2402}
2403
2404static int savagefb_resume(struct pci_dev* dev)
2405{
2406 struct fb_info *info = pci_get_drvdata(dev);
2407 struct savagefb_par *par = info->par;
2408 int cur_state = par->pm_state;
2409
2410 DBG("savage_resume");
2411
2412 par->pm_state = PM_EVENT_ON;
2413
2414 /*
2415 * The adapter was not powered down coming back from a
2416 * PM_EVENT_FREEZE.
2417 */
2418 if (cur_state == PM_EVENT_FREEZE) {
2419 pci_set_power_state(dev, PCI_D0);
2420 return 0;
2421 }
2422
2423 console_lock();
2424
2425 pci_set_power_state(dev, PCI_D0);
2426 pci_restore_state(dev);
2427
2428 if (pci_enable_device(dev))
2429 DBG("err");
2430
2431 pci_set_master(dev);
2432 savage_enable_mmio(par);
2433 savage_init_hw(par);
2434 savagefb_set_par(info);
2435 fb_set_suspend(info, 0);
2436 savagefb_blank(FB_BLANK_UNBLANK, info);
2437 console_unlock();
2438
2439 return 0;
2440}
2441
2442
2443static struct pci_device_id savagefb_devices[] = {
2444 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX128,
2445 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2446
2447 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64,
2448 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2449
2450 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64C,
2451 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2452
2453 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128SDR,
2454 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2455
2456 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128DDR,
2457 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2458
2459 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64SDR,
2460 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2461
2462 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64DDR,
2463 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2464
2465 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCSDR,
2466 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2467
2468 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCDDR,
2469 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2470
2471 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4,
2472 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE4},
2473
2474 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D,
2475 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D},
2476
2477 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D_MV,
2478 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D_MV},
2479
2480 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000,
2481 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE2000},
2482
2483 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX_MV,
2484 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX_MV},
2485
2486 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX,
2487 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX},
2488
2489 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX_MV,
2490 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX_MV},
2491
2492 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX,
2493 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX},
2494
2495 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_PM,
2496 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_PM},
2497
2498 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_KM,
2499 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_KM},
2500
2501 {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_P,
2502 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_P},
2503
2504 {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_K,
2505 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_K},
2506
2507 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDR,
2508 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDR},
2509
2510 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDRK,
2511 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDRK},
2512
2513 {0, 0, 0, 0, 0, 0, 0}
2514};
2515
2516MODULE_DEVICE_TABLE(pci, savagefb_devices);
2517
2518static struct pci_driver savagefb_driver = {
2519 .name = "savagefb",
2520 .id_table = savagefb_devices,
2521 .probe = savagefb_probe,
2522 .suspend = savagefb_suspend,
2523 .resume = savagefb_resume,
2524 .remove = savagefb_remove,
2525};
2526
2527/* **************************** exit-time only **************************** */
2528
2529static void __exit savage_done(void)
2530{
2531 DBG("savage_done");
2532 pci_unregister_driver(&savagefb_driver);
2533}
2534
2535
2536/* ************************* init in-kernel code ************************** */
2537
2538static int __init savagefb_setup(char *options)
2539{
2540#ifndef MODULE
2541 char *this_opt;
2542
2543 if (!options || !*options)
2544 return 0;
2545
2546 while ((this_opt = strsep(&options, ",")) != NULL) {
2547 mode_option = this_opt;
2548 }
2549#endif /* !MODULE */
2550 return 0;
2551}
2552
2553static int __init savagefb_init(void)
2554{
2555 char *option;
2556
2557 DBG("savagefb_init");
2558
2559 if (fb_get_options("savagefb", &option))
2560 return -ENODEV;
2561
2562 savagefb_setup(option);
2563 return pci_register_driver(&savagefb_driver);
2564
2565}
2566
2567module_init(savagefb_init);
2568module_exit(savage_done);
2569
2570module_param(mode_option, charp, 0);
2571MODULE_PARM_DESC(mode_option, "Specify initial video mode");
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-13 21:51:40 -0400