diff options
Diffstat (limited to 'drivers/video/fbdev/savage')
| -rw-r--r-- | drivers/video/fbdev/savage/Makefile | 10 | ||||
| -rw-r--r-- | drivers/video/fbdev/savage/savagefb-i2c.c | 241 | ||||
| -rw-r--r-- | drivers/video/fbdev/savage/savagefb.h | 406 | ||||
| -rw-r--r-- | drivers/video/fbdev/savage/savagefb_accel.c | 137 | ||||
| -rw-r--r-- | drivers/video/fbdev/savage/savagefb_driver.c | 2573 |
5 files changed, 3367 insertions, 0 deletions
diff --git a/drivers/video/fbdev/savage/Makefile b/drivers/video/fbdev/savage/Makefile new file mode 100644 index 0000000000..3f6fcced16 --- /dev/null +++ b/drivers/video/fbdev/savage/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for the S3 Savage framebuffer driver +# + +obj-$(CONFIG_FB_SAVAGE) += savagefb.o + +savagefb-y += savagefb_driver.o +savagefb-$(CONFIG_FB_SAVAGE_I2C) += savagefb-i2c.o +savagefb-$(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 0000000000..80fa87e2ae --- /dev/null +++ b/drivers/video/fbdev/savage/savagefb-i2c.c @@ -0,0 +1,241 @@ +/* + * linux/drivers/video/savage/savagefb-i2c.c - S3 Savage DDC2 + * + * Copyright 2004 Antonino A. Daplas <adaplas @pol.net> + * + * Based partly on rivafb-i2c.c + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/gfp.h> +#include <linux/pci.h> +#include <linux/fb.h> + +#include <asm/io.h> +#include "savagefb.h" + +#define SAVAGE_DDC 0x50 + +#define VGA_CR_IX 0x3d4 +#define VGA_CR_DATA 0x3d5 + +#define CR_SERIAL1 0xa0 /* I2C serial communications interface */ +#define MM_SERIAL1 0xff20 +#define CR_SERIAL2 0xb1 /* DDC2 monitor communications interface */ + +/* based on vt8365 documentation */ +#define PROSAVAGE_I2C_ENAB 0x10 +#define PROSAVAGE_I2C_SCL_OUT 0x01 +#define PROSAVAGE_I2C_SDA_OUT 0x02 +#define PROSAVAGE_I2C_SCL_IN 0x04 +#define PROSAVAGE_I2C_SDA_IN 0x08 + +#define SAVAGE4_I2C_ENAB 0x00000020 +#define SAVAGE4_I2C_SCL_OUT 0x00000001 +#define SAVAGE4_I2C_SDA_OUT 0x00000002 +#define SAVAGE4_I2C_SCL_IN 0x00000008 +#define SAVAGE4_I2C_SDA_IN 0x00000010 + +static void savage4_gpio_setscl(void *data, int val) +{ + struct savagefb_i2c_chan *chan = data; + unsigned int r; + + r = readl(chan->ioaddr + chan->reg); + if(val) + r |= SAVAGE4_I2C_SCL_OUT; + else + r &= ~SAVAGE4_I2C_SCL_OUT; + writel(r, chan->ioaddr + chan->reg); + readl(chan->ioaddr + chan->reg); /* flush posted write */ +} + +static void savage4_gpio_setsda(void *data, int val) +{ + struct savagefb_i2c_chan *chan = data; + + unsigned int r; + r = readl(chan->ioaddr + chan->reg); + if(val) + r |= SAVAGE4_I2C_SDA_OUT; + else + r &= ~SAVAGE4_I2C_SDA_OUT; + writel(r, chan->ioaddr + chan->reg); + readl(chan->ioaddr + chan->reg); /* flush posted write */ +} + +static int savage4_gpio_getscl(void *data) +{ + struct savagefb_i2c_chan *chan = data; + + return (0 != (readl(chan->ioaddr + chan->reg) & SAVAGE4_I2C_SCL_IN)); +} + +static int savage4_gpio_getsda(void *data) +{ + struct savagefb_i2c_chan *chan = data; + + return (0 != (readl(chan->ioaddr + chan->reg) & SAVAGE4_I2C_SDA_IN)); +} + +static void prosavage_gpio_setscl(void* data, int val) +{ + struct savagefb_i2c_chan *chan = data; + u32 r; + + r = VGArCR(chan->reg, chan->par); + r |= PROSAVAGE_I2C_ENAB; + if (val) { + r |= PROSAVAGE_I2C_SCL_OUT; + } else { + r &= ~PROSAVAGE_I2C_SCL_OUT; + } + + VGAwCR(chan->reg, r, chan->par); +} + +static void prosavage_gpio_setsda(void* data, int val) +{ + struct savagefb_i2c_chan *chan = data; + unsigned int r; + + r = VGArCR(chan->reg, chan->par); + r |= PROSAVAGE_I2C_ENAB; + if (val) { + r |= PROSAVAGE_I2C_SDA_OUT; + } else { + r &= ~PROSAVAGE_I2C_SDA_OUT; + } + + VGAwCR(chan->reg, r, chan->par); +} + +static int prosavage_gpio_getscl(void* data) +{ + struct savagefb_i2c_chan *chan = data; + + return (VGArCR(chan->reg, chan->par) & PROSAVAGE_I2C_SCL_IN) ? 1 : 0; +} + +static int prosavage_gpio_getsda(void* data) +{ + struct savagefb_i2c_chan *chan = data; + + return (VGArCR(chan->reg, chan->par) & PROSAVAGE_I2C_SDA_IN) ? 1 : 0; +} + +static int savage_setup_i2c_bus(struct savagefb_i2c_chan *chan, + const char *name) +{ + int rc = 0; + + if (chan->par) { + strcpy(chan->adapter.name, name); + chan->adapter.owner = THIS_MODULE; + chan->adapter.algo_data = &chan->algo; + chan->adapter.dev.parent = &chan->par->pcidev->dev; + chan->algo.udelay = 10; + chan->algo.timeout = 20; + chan->algo.data = chan; + + i2c_set_adapdata(&chan->adapter, chan); + + /* Raise SCL and SDA */ + chan->algo.setsda(chan, 1); + chan->algo.setscl(chan, 1); + udelay(20); + + rc = i2c_bit_add_bus(&chan->adapter); + + if (rc == 0) + dev_dbg(&chan->par->pcidev->dev, + "I2C bus %s registered.\n", name); + else + dev_warn(&chan->par->pcidev->dev, + "Failed to register I2C bus %s.\n", name); + } + + return rc; +} + +void savagefb_create_i2c_busses(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + par->chan.par = par; + + switch (par->chip) { + case S3_PROSAVAGE: + case S3_PROSAVAGEDDR: + case S3_TWISTER: + par->chan.reg = CR_SERIAL2; + par->chan.ioaddr = par->mmio.vbase; + par->chan.algo.setsda = prosavage_gpio_setsda; + par->chan.algo.setscl = prosavage_gpio_setscl; + par->chan.algo.getsda = prosavage_gpio_getsda; + par->chan.algo.getscl = prosavage_gpio_getscl; + break; + case S3_SAVAGE4: + par->chan.reg = CR_SERIAL1; + if (par->pcidev->revision > 1 && !(VGArCR(0xa6, par) & 0x40)) + par->chan.reg = CR_SERIAL2; + par->chan.ioaddr = par->mmio.vbase; + par->chan.algo.setsda = prosavage_gpio_setsda; + par->chan.algo.setscl = prosavage_gpio_setscl; + par->chan.algo.getsda = prosavage_gpio_getsda; + par->chan.algo.getscl = prosavage_gpio_getscl; + break; + case S3_SAVAGE2000: + par->chan.reg = MM_SERIAL1; + par->chan.ioaddr = par->mmio.vbase; + par->chan.algo.setsda = savage4_gpio_setsda; + par->chan.algo.setscl = savage4_gpio_setscl; + par->chan.algo.getsda = savage4_gpio_getsda; + par->chan.algo.getscl = savage4_gpio_getscl; + break; + default: + par->chan.par = NULL; + } + + savage_setup_i2c_bus(&par->chan, "SAVAGE DDC2"); +} + +void savagefb_delete_i2c_busses(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + + if (par->chan.par) + i2c_del_adapter(&par->chan.adapter); + + par->chan.par = NULL; +} + +int savagefb_probe_i2c_connector(struct fb_info *info, u8 **out_edid) +{ + struct savagefb_par *par = info->par; + u8 *edid; + + if (par->chan.par) + edid = fb_ddc_read(&par->chan.adapter); + else + edid = NULL; + + if (!edid) { + /* try to get from firmware */ + const u8 *e = fb_firmware_edid(info->device); + + if (e) + edid = kmemdup(e, EDID_LENGTH, GFP_KERNEL); + } + + *out_edid = edid; + + return (edid) ? 0 : 1; +} + +MODULE_LICENSE("GPL"); diff --git a/drivers/video/fbdev/savage/savagefb.h b/drivers/video/fbdev/savage/savagefb.h new file mode 100644 index 0000000000..b6b8cc2082 --- /dev/null +++ b/drivers/video/fbdev/savage/savagefb.h @@ -0,0 +1,406 @@ +/* + * linux/drivers/video/savagefb.h -- S3 Savage Framebuffer Driver + * + * Copyright (c) 2001 Denis Oliver Kropp <dok@convergence.de> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + */ + + +#ifndef __SAVAGEFB_H__ +#define __SAVAGEFB_H__ + +#include <linux/i2c.h> +#include <linux/i2c-algo-bit.h> +#include <linux/mutex.h> +#include <video/vga.h> +#include "../edid.h" + +#ifdef SAVAGEFB_DEBUG +# define DBG(x) printk (KERN_DEBUG "savagefb: %s\n", (x)); +#else +# define DBG(x) no_printk(x) +# define SavagePrintRegs(...) +#endif + + +#define PCI_CHIP_SAVAGE4 0x8a22 +#define PCI_CHIP_SAVAGE3D 0x8a20 +#define PCI_CHIP_SAVAGE3D_MV 0x8a21 +#define PCI_CHIP_SAVAGE2000 0x9102 +#define PCI_CHIP_SAVAGE_MX_MV 0x8c10 +#define PCI_CHIP_SAVAGE_MX 0x8c11 +#define PCI_CHIP_SAVAGE_IX_MV 0x8c12 +#define PCI_CHIP_SAVAGE_IX 0x8c13 +#define PCI_CHIP_PROSAVAGE_PM 0x8a25 +#define PCI_CHIP_PROSAVAGE_KM 0x8a26 +#define PCI_CHIP_S3TWISTER_P 0x8d01 +#define PCI_CHIP_S3TWISTER_K 0x8d02 +#define PCI_CHIP_PROSAVAGE_DDR 0x8d03 +#define PCI_CHIP_PROSAVAGE_DDRK 0x8d04 +#define PCI_CHIP_SUPSAV_MX128 0x8c22 +#define PCI_CHIP_SUPSAV_MX64 0x8c24 +#define PCI_CHIP_SUPSAV_MX64C 0x8c26 +#define PCI_CHIP_SUPSAV_IX128SDR 0x8c2a +#define PCI_CHIP_SUPSAV_IX128DDR 0x8c2b +#define PCI_CHIP_SUPSAV_IX64SDR 0x8c2c +#define PCI_CHIP_SUPSAV_IX64DDR 0x8c2d +#define PCI_CHIP_SUPSAV_IXCSDR 0x8c2e +#define PCI_CHIP_SUPSAV_IXCDDR 0x8c2f + + +#define S3_SAVAGE_SERIES(chip) ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE2000)) + +#define S3_SAVAGE3D_SERIES(chip) ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE_MX)) + +#define S3_SAVAGE4_SERIES(chip) ((chip>=S3_SAVAGE4) && (chip<=S3_PROSAVAGEDDR)) + +#define S3_SAVAGE_MOBILE_SERIES(chip) ((chip==S3_SAVAGE_MX) || (chip==S3_SUPERSAVAGE)) + +#define S3_MOBILE_TWISTER_SERIES(chip) ((chip==S3_TWISTER) || (chip==S3_PROSAVAGEDDR)) + +/* Chip tags. These are used to group the adapters into + * related families. + */ + +typedef enum { + S3_UNKNOWN = 0, + S3_SAVAGE3D, + S3_SAVAGE_MX, + S3_SAVAGE4, + S3_PROSAVAGE, + S3_TWISTER, + S3_PROSAVAGEDDR, + S3_SUPERSAVAGE, + S3_SAVAGE2000, + S3_LAST +} savage_chipset; + +#define BIOS_BSIZE 1024 +#define BIOS_BASE 0xc0000 + +#define SAVAGE_NEWMMIO_REGBASE_S3 0x1000000 /* 16MB */ +#define SAVAGE_NEWMMIO_REGBASE_S4 0x0000000 +#define SAVAGE_NEWMMIO_REGSIZE 0x0080000 /* 512kb */ +#define SAVAGE_NEWMMIO_VGABASE 0x8000 + +#define BASE_FREQ 14318 +#define HALF_BASE_FREQ 7159 + +#define FIFO_CONTROL_REG 0x8200 +#define MIU_CONTROL_REG 0x8204 +#define STREAMS_TIMEOUT_REG 0x8208 +#define MISC_TIMEOUT_REG 0x820c + +#define MONO_PAT_0 0xa4e8 +#define MONO_PAT_1 0xa4ec + +#define MAXFIFO 0x7f00 + +#define BCI_CMD_NOP 0x40000000 +#define BCI_CMD_SETREG 0x96000000 +#define BCI_CMD_RECT 0x48000000 +#define BCI_CMD_RECT_XP 0x01000000 +#define BCI_CMD_RECT_YP 0x02000000 +#define BCI_CMD_SEND_COLOR 0x00008000 +#define BCI_CMD_DEST_GBD 0x00000000 +#define BCI_CMD_SRC_GBD 0x00000020 +#define BCI_CMD_SRC_SOLID 0x00000000 +#define BCI_CMD_SRC_MONO 0x00000060 +#define BCI_CMD_CLIP_NEW 0x00006000 +#define BCI_CMD_CLIP_LR 0x00004000 + +#define BCI_CLIP_LR(l, r) ((((r) << 16) | (l)) & 0x0FFF0FFF) +#define BCI_CLIP_TL(t, l) ((((t) << 16) | (l)) & 0x0FFF0FFF) +#define BCI_CLIP_BR(b, r) ((((b) << 16) | (r)) & 0x0FFF0FFF) +#define BCI_W_H(w, h) (((h) << 16) | ((w) & 0xFFF)) +#define BCI_X_Y(x, y) (((y) << 16) | ((x) & 0xFFF)) + +#define BCI_GBD1 0xE0 +#define BCI_GBD2 0xE1 + +#define BCI_BUFFER_OFFSET 0x10000 +#define BCI_SIZE 0x4000 + +#define BCI_SEND(dw) writel(dw, par->bci_base + par->bci_ptr++) + +#define BCI_CMD_GET_ROP(cmd) (((cmd) >> 16) & 0xFF) +#define BCI_CMD_SET_ROP(cmd, rop) ((cmd) |= ((rop & 0xFF) << 16)) +#define BCI_CMD_SEND_COLOR 0x00008000 + +#define DISP_CRT 1 +#define DISP_LCD 2 +#define DISP_DFP 3 + +struct xtimings { + unsigned int Clock; + unsigned int HDisplay; + unsigned int HSyncStart; + unsigned int HSyncEnd; + unsigned int HTotal; + unsigned int HAdjusted; + unsigned int VDisplay; + unsigned int VSyncStart; + unsigned int VSyncEnd; + unsigned int VTotal; + unsigned int sync; + int dblscan; + int interlaced; +}; + +struct savage_reg { + unsigned char MiscOutReg; /* Misc */ + unsigned char CRTC[25]; /* Crtc Controller */ + unsigned char Sequencer[5]; /* Video Sequencer */ + unsigned char Graphics[9]; /* Video Graphics */ + unsigned char Attribute[21]; /* Video Attribute */ + + unsigned int mode, refresh; + unsigned char SR08, SR0E, SR0F; + unsigned char SR10, SR11, SR12, SR13, SR15, SR18, SR29, SR30; + unsigned char SR54[8]; + unsigned char Clock; + unsigned char CR31, CR32, CR33, CR34, CR36, CR3A, CR3B, CR3C; + unsigned char CR40, CR41, CR42, CR43, CR45; + unsigned char CR50, CR51, CR53, CR55, CR58, CR5B, CR5D, CR5E; + unsigned char CR60, CR63, CR65, CR66, CR67, CR68, CR69, CR6D, CR6F; + unsigned char CR86, CR88; + unsigned char CR90, CR91, CRB0; + unsigned int STREAMS[22]; /* yuck, streams regs */ + unsigned int MMPR0, MMPR1, MMPR2, MMPR3; +}; +/* --------------------------------------------------------------------- */ + +#define NR_PALETTE 256 + + +struct savagefb_par; + +struct savagefb_i2c_chan { + struct savagefb_par *par; + struct i2c_adapter adapter; + struct i2c_algo_bit_data algo; + volatile u8 __iomem *ioaddr; + u32 reg; +}; + +struct savagefb_par { + struct pci_dev *pcidev; + savage_chipset chip; + struct savagefb_i2c_chan chan; + struct savage_reg state; + struct savage_reg save; + struct savage_reg initial; + struct vgastate vgastate; + struct mutex open_lock; + u32 pseudo_palette[16]; + u32 open_count; + int paletteEnabled; + int pm_state; + int display_type; + int dvi; + int crtonly; + int dacSpeedBpp; + int maxClock; + int minClock; + int numClocks; + int clock[4]; + int MCLK, REFCLK, LCDclk; + struct { + void __iomem *vbase; + u32 pbase; + u32 len; + int wc_cookie; + } video; + + struct { + void __iomem *vbase; + u32 pbase; + u32 len; + } mmio; + + volatile u32 __iomem *bci_base; + unsigned int bci_ptr; + u32 cob_offset; + u32 cob_size; + int cob_index; + + void (*SavageWaitIdle) (struct savagefb_par *par); + void (*SavageWaitFifo) (struct savagefb_par *par, int space); + + int HorizScaleFactor; + + /* Panels size */ + int SavagePanelWidth; + int SavagePanelHeight; + + struct { + u16 red, green, blue, transp; + } palette[NR_PALETTE]; + + int depth; + int vwidth; +}; + +#define BCI_BD_BW_DISABLE 0x10000000 +#define BCI_BD_SET_BPP(bd, bpp) ((bd) |= (((bpp) & 0xFF) << 16)) +#define BCI_BD_SET_STRIDE(bd, st) ((bd) |= ((st) & 0xFFFF)) + + +/* IO functions */ +static inline u8 savage_in8(u32 addr, struct savagefb_par *par) +{ + return readb(par->mmio.vbase + addr); +} + +static inline u16 savage_in16(u32 addr, struct savagefb_par *par) +{ + return readw(par->mmio.vbase + addr); +} + +static inline u32 savage_in32(u32 addr, struct savagefb_par *par) +{ + return readl(par->mmio.vbase + addr); +} + +static inline void savage_out8(u32 addr, u8 val, struct savagefb_par *par) +{ + writeb(val, par->mmio.vbase + addr); +} + +static inline void savage_out16(u32 addr, u16 val, struct savagefb_par *par) +{ + writew(val, par->mmio.vbase + addr); +} + +static inline void savage_out32(u32 addr, u32 val, struct savagefb_par *par) +{ + writel(val, par->mmio.vbase + addr); +} + +static inline u8 vga_in8(int addr, struct savagefb_par *par) +{ + return savage_in8(0x8000 + addr, par); +} + +static inline u16 vga_in16(int addr, struct savagefb_par *par) +{ + return savage_in16(0x8000 + addr, par); +} + +static inline u8 vga_in32(int addr, struct savagefb_par *par) +{ + return savage_in32(0x8000 + addr, par); +} + +static inline void vga_out8(int addr, u8 val, struct savagefb_par *par) +{ + savage_out8(0x8000 + addr, val, par); +} + +static inline void vga_out16(int addr, u16 val, struct savagefb_par *par) +{ + savage_out16(0x8000 + addr, val, par); +} + +static inline void vga_out32(int addr, u32 val, struct savagefb_par *par) +{ + savage_out32(0x8000 + addr, val, par); +} + +static inline u8 VGArCR (u8 index, struct savagefb_par *par) +{ + vga_out8(0x3d4, index, par); + return vga_in8(0x3d5, par); +} + +static inline u8 VGArGR (u8 index, struct savagefb_par *par) +{ + vga_out8(0x3ce, index, par); + return vga_in8(0x3cf, par); +} + +static inline u8 VGArSEQ (u8 index, struct savagefb_par *par) +{ + vga_out8(0x3c4, index, par); + return vga_in8(0x3c5, par); +} + +static inline void VGAwCR(u8 index, u8 val, struct savagefb_par *par) +{ + vga_out8(0x3d4, index, par); + vga_out8(0x3d5, val, par); +} + +static inline void VGAwGR(u8 index, u8 val, struct savagefb_par *par) +{ + vga_out8(0x3ce, index, par); + vga_out8(0x3cf, val, par); +} + +static inline void VGAwSEQ(u8 index, u8 val, struct savagefb_par *par) +{ + vga_out8(0x3c4, index, par); + vga_out8 (0x3c5, val, par); +} + +static inline void VGAenablePalette(struct savagefb_par *par) +{ + vga_in8(0x3da, par); + vga_out8(0x3c0, 0x00, par); + par->paletteEnabled = 1; +} + +static inline void VGAdisablePalette(struct savagefb_par *par) +{ + vga_in8(0x3da, par); + vga_out8(0x3c0, 0x20, par); + par->paletteEnabled = 0; +} + +static inline void VGAwATTR(u8 index, u8 value, struct savagefb_par *par) +{ + if (par->paletteEnabled) + index &= ~0x20; + else + index |= 0x20; + + vga_in8(0x3da, par); + vga_out8(0x3c0, index, par); + vga_out8 (0x3c0, value, par); +} + +static inline void VGAwMISC(u8 value, struct savagefb_par *par) +{ + vga_out8(0x3c2, value, par); +} + +#ifndef CONFIG_FB_SAVAGE_ACCEL +#define savagefb_set_clip(x) +#endif + +static inline void VerticalRetraceWait(struct savagefb_par *par) +{ + vga_out8(0x3d4, 0x17, par); + if (vga_in8(0x3d5, par) & 0x80) { + while ((vga_in8(0x3da, par) & 0x08) == 0x08); + while ((vga_in8(0x3da, par) & 0x08) == 0x00); + } +} + +extern int savagefb_probe_i2c_connector(struct fb_info *info, + u8 **out_edid); +extern void savagefb_create_i2c_busses(struct fb_info *info); +extern void savagefb_delete_i2c_busses(struct fb_info *info); +extern int savagefb_sync(struct fb_info *info); +extern void savagefb_copyarea(struct fb_info *info, + const struct fb_copyarea *region); +extern void savagefb_fillrect(struct fb_info *info, + const struct fb_fillrect *rect); +extern void savagefb_imageblit(struct fb_info *info, + const struct fb_image *image); + + +#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 0000000000..bfefa6234c --- /dev/null +++ b/drivers/video/fbdev/savage/savagefb_accel.c @@ -0,0 +1,137 @@ +/*-*- linux-c -*- + * linux/drivers/video/savage/savage_accel.c -- Hardware Acceleration + * + * Copyright (C) 2004 Antonino Daplas<adaplas@pol.net> + * All Rights Reserved + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/fb.h> +#include <linux/module.h> + +#include "savagefb.h" + +static u32 savagefb_rop[] = { + 0xCC, /* ROP_COPY */ + 0x5A /* ROP_XOR */ +}; + +int savagefb_sync(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + + par->SavageWaitIdle(par); + return 0; +} + +void savagefb_copyarea(struct fb_info *info, const struct fb_copyarea *region) +{ + struct savagefb_par *par = info->par; + int sx = region->sx, dx = region->dx; + int sy = region->sy, dy = region->dy; + int cmd; + + if (!region->width || !region->height) + return; + par->bci_ptr = 0; + cmd = BCI_CMD_RECT | BCI_CMD_DEST_GBD | BCI_CMD_SRC_GBD; + BCI_CMD_SET_ROP(cmd, savagefb_rop[0]); + + if (dx <= sx) { + cmd |= BCI_CMD_RECT_XP; + } else { + sx += region->width - 1; + dx += region->width - 1; + } + + if (dy <= sy) { + cmd |= BCI_CMD_RECT_YP; + } else { + sy += region->height - 1; + dy += region->height - 1; + } + + par->SavageWaitFifo(par,4); + BCI_SEND(cmd); + BCI_SEND(BCI_X_Y(sx, sy)); + BCI_SEND(BCI_X_Y(dx, dy)); + BCI_SEND(BCI_W_H(region->width, region->height)); +} + +void savagefb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) +{ + struct savagefb_par *par = info->par; + int cmd, color; + + if (!rect->width || !rect->height) + return; + + if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) + color = rect->color; + else + color = ((u32 *)info->pseudo_palette)[rect->color]; + + cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP | + BCI_CMD_DEST_GBD | BCI_CMD_SRC_SOLID | + BCI_CMD_SEND_COLOR; + + par->bci_ptr = 0; + BCI_CMD_SET_ROP(cmd, savagefb_rop[rect->rop]); + + par->SavageWaitFifo(par,4); + BCI_SEND(cmd); + BCI_SEND(color); + BCI_SEND( BCI_X_Y(rect->dx, rect->dy) ); + BCI_SEND( BCI_W_H(rect->width, rect->height) ); +} + +void savagefb_imageblit(struct fb_info *info, const struct fb_image *image) +{ + struct savagefb_par *par = info->par; + int fg, bg, size, i, width; + int cmd; + u32 *src = (u32 *) image->data; + + if (!image->width || !image->height) + return; + + if (image->depth != 1) { + cfb_imageblit(info, image); + return; + } + + if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) { + fg = image->fg_color; + bg = image->bg_color; + } else { + fg = ((u32 *)info->pseudo_palette)[image->fg_color]; + bg = ((u32 *)info->pseudo_palette)[image->bg_color]; + } + + cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP | + BCI_CMD_CLIP_LR | BCI_CMD_DEST_GBD | BCI_CMD_SRC_MONO | + BCI_CMD_SEND_COLOR; + + par->bci_ptr = 0; + BCI_CMD_SET_ROP(cmd, savagefb_rop[0]); + + width = (image->width + 31) & ~31; + size = (width * image->height)/8; + size >>= 2; + + par->SavageWaitFifo(par, size + 5); + BCI_SEND(cmd); + BCI_SEND(BCI_CLIP_LR(image->dx, image->dx + image->width - 1)); + BCI_SEND(fg); + BCI_SEND(bg); + BCI_SEND(BCI_X_Y(image->dx, image->dy)); + BCI_SEND(BCI_W_H(width, image->height)); + for (i = 0; i < size; i++) + BCI_SEND(src[i]); +} + +MODULE_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 0000000000..b5f84bd480 --- /dev/null +++ b/drivers/video/fbdev/savage/savagefb_driver.c @@ -0,0 +1,2573 @@ +/* + * linux/drivers/video/savagefb.c -- S3 Savage Framebuffer Driver + * + * Copyright (c) 2001-2002 Denis Oliver Kropp <dok@directfb.org> + * Sven Neumann <neo@directfb.org> + * + * + * Card specific code is based on XFree86's savage driver. + * Framebuffer framework code is based on code of cyber2000fb and tdfxfb. + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * 0.4.0 (neo) + * - hardware accelerated clear and move + * + * 0.3.2 (dok) + * - wait for vertical retrace before writing to cr67 + * at the beginning of savagefb_set_par + * - use synchronization registers cr23 and cr26 + * + * 0.3.1 (dok) + * - reset 3D engine + * - don't return alpha bits for 32bit format + * + * 0.3.0 (dok) + * - added WaitIdle functions for all Savage types + * - do WaitIdle before mode switching + * - code cleanup + * + * 0.2.0 (dok) + * - first working version + * + * + * TODO + * - clock validations in decode_var + * + * BUGS + * - white margin on bootup + * + */ + +#include <linux/aperture.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/fb.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/console.h> + +#include <asm/io.h> +#include <asm/irq.h> + +#include "savagefb.h" + + +#define SAVAGEFB_VERSION "0.4.0_2.6" + +/* --------------------------------------------------------------------- */ + + +static char *mode_option = NULL; + +#ifdef MODULE + +MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("FBDev driver for S3 Savage PCI/AGP Chips"); + +#endif + + +/* --------------------------------------------------------------------- */ + +static void vgaHWSeqReset(struct savagefb_par *par, int start) +{ + if (start) + VGAwSEQ(0x00, 0x01, par); /* Synchronous Reset */ + else + VGAwSEQ(0x00, 0x03, par); /* End Reset */ +} + +static void vgaHWProtect(struct savagefb_par *par, int on) +{ + unsigned char tmp; + + if (on) { + /* + * Turn off screen and disable sequencer. + */ + tmp = VGArSEQ(0x01, par); + + vgaHWSeqReset(par, 1); /* start synchronous reset */ + VGAwSEQ(0x01, tmp | 0x20, par);/* disable the display */ + + VGAenablePalette(par); + } else { + /* + * Reenable sequencer, then turn on screen. + */ + + tmp = VGArSEQ(0x01, par); + + VGAwSEQ(0x01, tmp & ~0x20, par);/* reenable display */ + vgaHWSeqReset(par, 0); /* clear synchronous reset */ + + VGAdisablePalette(par); + } +} + +static void vgaHWRestore(struct savagefb_par *par, struct savage_reg *reg) +{ + int i; + + VGAwMISC(reg->MiscOutReg, par); + + for (i = 1; i < 5; i++) + VGAwSEQ(i, reg->Sequencer[i], par); + + /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or + CRTC[17] */ + VGAwCR(17, reg->CRTC[17] & ~0x80, par); + + for (i = 0; i < 25; i++) + VGAwCR(i, reg->CRTC[i], par); + + for (i = 0; i < 9; i++) + VGAwGR(i, reg->Graphics[i], par); + + VGAenablePalette(par); + + for (i = 0; i < 21; i++) + VGAwATTR(i, reg->Attribute[i], par); + + VGAdisablePalette(par); +} + +static void vgaHWInit(struct fb_var_screeninfo *var, + struct savagefb_par *par, + struct xtimings *timings, + struct savage_reg *reg) +{ + reg->MiscOutReg = 0x23; + + if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT)) + reg->MiscOutReg |= 0x40; + + if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT)) + reg->MiscOutReg |= 0x80; + + /* + * Time Sequencer + */ + reg->Sequencer[0x00] = 0x00; + reg->Sequencer[0x01] = 0x01; + reg->Sequencer[0x02] = 0x0F; + reg->Sequencer[0x03] = 0x00; /* Font select */ + reg->Sequencer[0x04] = 0x0E; /* Misc */ + + /* + * CRTC Controller + */ + reg->CRTC[0x00] = (timings->HTotal >> 3) - 5; + reg->CRTC[0x01] = (timings->HDisplay >> 3) - 1; + reg->CRTC[0x02] = (timings->HSyncStart >> 3) - 1; + reg->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80; + reg->CRTC[0x04] = (timings->HSyncStart >> 3); + reg->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) | + (((timings->HSyncEnd >> 3)) & 0x1f); + reg->CRTC[0x06] = (timings->VTotal - 2) & 0xFF; + reg->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) | + (((timings->VDisplay - 1) & 0x100) >> 7) | + ((timings->VSyncStart & 0x100) >> 6) | + (((timings->VSyncStart - 1) & 0x100) >> 5) | + 0x10 | + (((timings->VTotal - 2) & 0x200) >> 4) | + (((timings->VDisplay - 1) & 0x200) >> 3) | + ((timings->VSyncStart & 0x200) >> 2); + reg->CRTC[0x08] = 0x00; + reg->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40; + + if (timings->dblscan) + reg->CRTC[0x09] |= 0x80; + + reg->CRTC[0x0a] = 0x00; + reg->CRTC[0x0b] = 0x00; + reg->CRTC[0x0c] = 0x00; + reg->CRTC[0x0d] = 0x00; + reg->CRTC[0x0e] = 0x00; + reg->CRTC[0x0f] = 0x00; + reg->CRTC[0x10] = timings->VSyncStart & 0xff; + reg->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20; + reg->CRTC[0x12] = (timings->VDisplay - 1) & 0xff; + reg->CRTC[0x13] = var->xres_virtual >> 4; + reg->CRTC[0x14] = 0x00; + reg->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff; + reg->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff; + reg->CRTC[0x17] = 0xc3; + reg->CRTC[0x18] = 0xff; + + /* + * are these unnecessary? + * vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO); + * vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO); + */ + + /* + * Graphics Display Controller + */ + reg->Graphics[0x00] = 0x00; + reg->Graphics[0x01] = 0x00; + reg->Graphics[0x02] = 0x00; + reg->Graphics[0x03] = 0x00; + reg->Graphics[0x04] = 0x00; + reg->Graphics[0x05] = 0x40; + reg->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */ + reg->Graphics[0x07] = 0x0F; + reg->Graphics[0x08] = 0xFF; + + + reg->Attribute[0x00] = 0x00; /* standard colormap translation */ + reg->Attribute[0x01] = 0x01; + reg->Attribute[0x02] = 0x02; + reg->Attribute[0x03] = 0x03; + reg->Attribute[0x04] = 0x04; + reg->Attribute[0x05] = 0x05; + reg->Attribute[0x06] = 0x06; + reg->Attribute[0x07] = 0x07; + reg->Attribute[0x08] = 0x08; + reg->Attribute[0x09] = 0x09; + reg->Attribute[0x0a] = 0x0A; + reg->Attribute[0x0b] = 0x0B; + reg->Attribute[0x0c] = 0x0C; + reg->Attribute[0x0d] = 0x0D; + reg->Attribute[0x0e] = 0x0E; + reg->Attribute[0x0f] = 0x0F; + reg->Attribute[0x10] = 0x41; + reg->Attribute[0x11] = 0xFF; + reg->Attribute[0x12] = 0x0F; + reg->Attribute[0x13] = 0x00; + reg->Attribute[0x14] = 0x00; +} + +/* -------------------- Hardware specific routines ------------------------- */ + +/* + * Hardware Acceleration for SavageFB + */ + +/* Wait for fifo space */ +static void +savage3D_waitfifo(struct savagefb_par *par, int space) +{ + int slots = MAXFIFO - space; + + while ((savage_in32(0x48C00, par) & 0x0000ffff) > slots); +} + +static void +savage4_waitfifo(struct savagefb_par *par, int space) +{ + int slots = MAXFIFO - space; + + while ((savage_in32(0x48C60, par) & 0x001fffff) > slots); +} + +static void +savage2000_waitfifo(struct savagefb_par *par, int space) +{ + int slots = MAXFIFO - space; + + while ((savage_in32(0x48C60, par) & 0x0000ffff) > slots); +} + +/* Wait for idle accelerator */ +static void +savage3D_waitidle(struct savagefb_par *par) +{ + while ((savage_in32(0x48C00, par) & 0x0008ffff) != 0x80000); +} + +static void +savage4_waitidle(struct savagefb_par *par) +{ + while ((savage_in32(0x48C60, par) & 0x00a00000) != 0x00a00000); +} + +static void +savage2000_waitidle(struct savagefb_par *par) +{ + while ((savage_in32(0x48C60, par) & 0x009fffff)); +} + +#ifdef CONFIG_FB_SAVAGE_ACCEL +static void +SavageSetup2DEngine(struct savagefb_par *par) +{ + unsigned long GlobalBitmapDescriptor; + + GlobalBitmapDescriptor = 1 | 8 | BCI_BD_BW_DISABLE; + BCI_BD_SET_BPP(GlobalBitmapDescriptor, par->depth); + BCI_BD_SET_STRIDE(GlobalBitmapDescriptor, par->vwidth); + + switch(par->chip) { + case S3_SAVAGE3D: + case S3_SAVAGE_MX: + /* Disable BCI */ + savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par); + /* Setup BCI command overflow buffer */ + savage_out32(0x48C14, + (par->cob_offset >> 11) | (par->cob_index << 29), + par); + /* Program shadow status update. */ + savage_out32(0x48C10, 0x78207220, par); + savage_out32(0x48C0C, 0, par); + /* Enable BCI and command overflow buffer */ + savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x0C, par); + break; + case S3_SAVAGE4: + case S3_TWISTER: + case S3_PROSAVAGE: + case S3_PROSAVAGEDDR: + case S3_SUPERSAVAGE: + /* Disable BCI */ + savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par); + /* Program shadow status update */ + savage_out32(0x48C10, 0x00700040, par); + savage_out32(0x48C0C, 0, par); + /* Enable BCI without the COB */ + savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x08, par); + break; + case S3_SAVAGE2000: + /* Disable BCI */ + savage_out32(0x48C18, 0, par); + /* Setup BCI command overflow buffer */ + savage_out32(0x48C18, + (par->cob_offset >> 7) | (par->cob_index), + par); + /* Disable shadow status update */ + savage_out32(0x48A30, 0, par); + /* Enable BCI and command overflow buffer */ + savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x00280000, + par); + break; + default: + break; + } + /* Turn on 16-bit register access. */ + vga_out8(0x3d4, 0x31, par); + vga_out8(0x3d5, 0x0c, par); + + /* Set stride to use GBD. */ + vga_out8(0x3d4, 0x50, par); + vga_out8(0x3d5, vga_in8(0x3d5, par) | 0xC1, par); + + /* Enable 2D engine. */ + vga_out8(0x3d4, 0x40, par); + vga_out8(0x3d5, 0x01, par); + + savage_out32(MONO_PAT_0, ~0, par); + savage_out32(MONO_PAT_1, ~0, par); + + /* Setup plane masks */ + savage_out32(0x8128, ~0, par); /* enable all write planes */ + savage_out32(0x812C, ~0, par); /* enable all read planes */ + savage_out16(0x8134, 0x27, par); + savage_out16(0x8136, 0x07, par); + + /* Now set the GBD */ + par->bci_ptr = 0; + par->SavageWaitFifo(par, 4); + + BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1); + BCI_SEND(0); + BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2); + BCI_SEND(GlobalBitmapDescriptor); + + /* + * I don't know why, sending this twice fixes the initial black screen, + * prevents X from crashing at least in Toshiba laptops with SavageIX. + * --Tony + */ + par->bci_ptr = 0; + par->SavageWaitFifo(par, 4); + + BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1); + BCI_SEND(0); + BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2); + BCI_SEND(GlobalBitmapDescriptor); +} + +static void savagefb_set_clip(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + int cmd; + + cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW; + par->bci_ptr = 0; + par->SavageWaitFifo(par,3); + BCI_SEND(cmd); + BCI_SEND(BCI_CLIP_TL(0, 0)); + BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff)); +} +#else +static void SavageSetup2DEngine(struct savagefb_par *par) {} + +#endif + +static void SavageCalcClock(long freq, int min_m, int min_n1, int max_n1, + int min_n2, int max_n2, long freq_min, + long freq_max, unsigned int *mdiv, + unsigned int *ndiv, unsigned int *r) +{ + long diff, best_diff; + unsigned int m; + unsigned char n1, n2, best_n1=16+2, best_n2=2, best_m=125+2; + + if (freq < freq_min / (1 << max_n2)) { + printk(KERN_ERR "invalid frequency %ld Khz\n", freq); + freq = freq_min / (1 << max_n2); + } + if (freq > freq_max / (1 << min_n2)) { + printk(KERN_ERR "invalid frequency %ld Khz\n", freq); + freq = freq_max / (1 << min_n2); + } + + /* work out suitable timings */ + best_diff = freq; + + for (n2=min_n2; n2<=max_n2; n2++) { + for (n1=min_n1+2; n1<=max_n1+2; n1++) { + m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) / + BASE_FREQ; + if (m < min_m+2 || m > 127+2) + continue; + if ((m * BASE_FREQ >= freq_min * n1) && + (m * BASE_FREQ <= freq_max * n1)) { + diff = freq * (1 << n2) * n1 - BASE_FREQ * m; + if (diff < 0) + diff = -diff; + if (diff < best_diff) { + best_diff = diff; + best_m = m; + best_n1 = n1; + best_n2 = n2; + } + } + } + } + + *ndiv = best_n1 - 2; + *r = best_n2; + *mdiv = best_m - 2; +} + +static int common_calc_clock(long freq, int min_m, int min_n1, int max_n1, + int min_n2, int max_n2, long freq_min, + long freq_max, unsigned char *mdiv, + unsigned char *ndiv) +{ + long diff, best_diff; + unsigned int m; + unsigned char n1, n2; + unsigned char best_n1 = 16+2, best_n2 = 2, best_m = 125+2; + + best_diff = freq; + + for (n2 = min_n2; n2 <= max_n2; n2++) { + for (n1 = min_n1+2; n1 <= max_n1+2; n1++) { + m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) / + BASE_FREQ; + if (m < min_m + 2 || m > 127+2) + continue; + if ((m * BASE_FREQ >= freq_min * n1) && + (m * BASE_FREQ <= freq_max * n1)) { + diff = freq * (1 << n2) * n1 - BASE_FREQ * m; + if (diff < 0) + diff = -diff; + if (diff < best_diff) { + best_diff = diff; + best_m = m; + best_n1 = n1; + best_n2 = n2; + } + } + } + } + + if (max_n1 == 63) + *ndiv = (best_n1 - 2) | (best_n2 << 6); + else + *ndiv = (best_n1 - 2) | (best_n2 << 5); + + *mdiv = best_m - 2; + + return 0; +} + +#ifdef SAVAGEFB_DEBUG +/* This function is used to debug, it prints out the contents of s3 regs */ + +static void SavagePrintRegs(struct savagefb_par *par) +{ + unsigned char i; + int vgaCRIndex = 0x3d4; + int vgaCRReg = 0x3d5; + + printk(KERN_DEBUG "SR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE " + "xF"); + + for (i = 0; i < 0x70; i++) { + if (!(i % 16)) + printk(KERN_DEBUG "\nSR%xx ", i >> 4); + vga_out8(0x3c4, i, par); + printk(KERN_DEBUG " %02x", vga_in8(0x3c5, par)); + } + + printk(KERN_DEBUG "\n\nCR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC " + "xD xE xF"); + + for (i = 0; i < 0xB7; i++) { + if (!(i % 16)) + printk(KERN_DEBUG "\nCR%xx ", i >> 4); + vga_out8(vgaCRIndex, i, par); + printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg, par)); + } + + printk(KERN_DEBUG "\n\n"); +} +#endif + +/* --------------------------------------------------------------------- */ + +static void savage_get_default_par(struct savagefb_par *par, struct savage_reg *reg) +{ + unsigned char cr3a, cr53, cr66; + + vga_out16(0x3d4, 0x4838, par); + vga_out16(0x3d4, 0xa039, par); + vga_out16(0x3c4, 0x0608, par); + + vga_out8(0x3d4, 0x66, par); + cr66 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr66 | 0x80, par); + vga_out8(0x3d4, 0x3a, par); + cr3a = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr3a | 0x80, par); + vga_out8(0x3d4, 0x53, par); + cr53 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr53 & 0x7f, par); + + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + + /* unlock extended seq regs */ + vga_out8(0x3c4, 0x08, par); + reg->SR08 = vga_in8(0x3c5, par); + vga_out8(0x3c5, 0x06, par); + + /* now save all the extended regs we need */ + vga_out8(0x3d4, 0x31, par); + reg->CR31 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x32, par); + reg->CR32 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x34, par); + reg->CR34 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x36, par); + reg->CR36 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x3a, par); + reg->CR3A = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x40, par); + reg->CR40 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x42, par); + reg->CR42 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x45, par); + reg->CR45 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x50, par); + reg->CR50 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x51, par); + reg->CR51 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x53, par); + reg->CR53 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x58, par); + reg->CR58 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x60, par); + reg->CR60 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x66, par); + reg->CR66 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x67, par); + reg->CR67 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x68, par); + reg->CR68 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x69, par); + reg->CR69 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x6f, par); + reg->CR6F = vga_in8(0x3d5, par); + + vga_out8(0x3d4, 0x33, par); + reg->CR33 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x86, par); + reg->CR86 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x88, par); + reg->CR88 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x90, par); + reg->CR90 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x91, par); + reg->CR91 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0xb0, par); + reg->CRB0 = vga_in8(0x3d5, par) | 0x80; + + /* extended mode timing regs */ + vga_out8(0x3d4, 0x3b, par); + reg->CR3B = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x3c, par); + reg->CR3C = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x43, par); + reg->CR43 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x5d, par); + reg->CR5D = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x5e, par); + reg->CR5E = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x65, par); + reg->CR65 = vga_in8(0x3d5, par); + + /* save seq extended regs for DCLK PLL programming */ + vga_out8(0x3c4, 0x0e, par); + reg->SR0E = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x0f, par); + reg->SR0F = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x10, par); + reg->SR10 = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x11, par); + reg->SR11 = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x12, par); + reg->SR12 = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x13, par); + reg->SR13 = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x29, par); + reg->SR29 = vga_in8(0x3c5, par); + + vga_out8(0x3c4, 0x15, par); + reg->SR15 = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x30, par); + reg->SR30 = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x18, par); + reg->SR18 = vga_in8(0x3c5, par); + + /* Save flat panel expansion registers. */ + if (par->chip == S3_SAVAGE_MX) { + int i; + + for (i = 0; i < 8; i++) { + vga_out8(0x3c4, 0x54+i, par); + reg->SR54[i] = vga_in8(0x3c5, par); + } + } + + vga_out8(0x3d4, 0x66, par); + cr66 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr66 | 0x80, par); + vga_out8(0x3d4, 0x3a, par); + cr3a = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr3a | 0x80, par); + + /* now save MIU regs */ + if (par->chip != S3_SAVAGE_MX) { + reg->MMPR0 = savage_in32(FIFO_CONTROL_REG, par); + reg->MMPR1 = savage_in32(MIU_CONTROL_REG, par); + reg->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par); + reg->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par); + } + + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); +} + +static void savage_set_default_par(struct savagefb_par *par, + struct savage_reg *reg) +{ + unsigned char cr3a, cr53, cr66; + + vga_out16(0x3d4, 0x4838, par); + vga_out16(0x3d4, 0xa039, par); + vga_out16(0x3c4, 0x0608, par); + + vga_out8(0x3d4, 0x66, par); + cr66 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr66 | 0x80, par); + vga_out8(0x3d4, 0x3a, par); + cr3a = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr3a | 0x80, par); + vga_out8(0x3d4, 0x53, par); + cr53 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr53 & 0x7f, par); + + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + + /* unlock extended seq regs */ + vga_out8(0x3c4, 0x08, par); + vga_out8(0x3c5, reg->SR08, par); + vga_out8(0x3c5, 0x06, par); + + /* now restore all the extended regs we need */ + vga_out8(0x3d4, 0x31, par); + vga_out8(0x3d5, reg->CR31, par); + vga_out8(0x3d4, 0x32, par); + vga_out8(0x3d5, reg->CR32, par); + vga_out8(0x3d4, 0x34, par); + vga_out8(0x3d5, reg->CR34, par); + vga_out8(0x3d4, 0x36, par); + vga_out8(0x3d5,reg->CR36, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, reg->CR3A, par); + vga_out8(0x3d4, 0x40, par); + vga_out8(0x3d5, reg->CR40, par); + vga_out8(0x3d4, 0x42, par); + vga_out8(0x3d5, reg->CR42, par); + vga_out8(0x3d4, 0x45, par); + vga_out8(0x3d5, reg->CR45, par); + vga_out8(0x3d4, 0x50, par); + vga_out8(0x3d5, reg->CR50, par); + vga_out8(0x3d4, 0x51, par); + vga_out8(0x3d5, reg->CR51, par); + vga_out8(0x3d4, 0x53, par); + vga_out8(0x3d5, reg->CR53, par); + vga_out8(0x3d4, 0x58, par); + vga_out8(0x3d5, reg->CR58, par); + vga_out8(0x3d4, 0x60, par); + vga_out8(0x3d5, reg->CR60, par); + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, reg->CR66, par); + vga_out8(0x3d4, 0x67, par); + vga_out8(0x3d5, reg->CR67, par); + vga_out8(0x3d4, 0x68, par); + vga_out8(0x3d5, reg->CR68, par); + vga_out8(0x3d4, 0x69, par); + vga_out8(0x3d5, reg->CR69, par); + vga_out8(0x3d4, 0x6f, par); + vga_out8(0x3d5, reg->CR6F, par); + + vga_out8(0x3d4, 0x33, par); + vga_out8(0x3d5, reg->CR33, par); + vga_out8(0x3d4, 0x86, par); + vga_out8(0x3d5, reg->CR86, par); + vga_out8(0x3d4, 0x88, par); + vga_out8(0x3d5, reg->CR88, par); + vga_out8(0x3d4, 0x90, par); + vga_out8(0x3d5, reg->CR90, par); + vga_out8(0x3d4, 0x91, par); + vga_out8(0x3d5, reg->CR91, par); + vga_out8(0x3d4, 0xb0, par); + vga_out8(0x3d5, reg->CRB0, par); + + /* extended mode timing regs */ + vga_out8(0x3d4, 0x3b, par); + vga_out8(0x3d5, reg->CR3B, par); + vga_out8(0x3d4, 0x3c, par); + vga_out8(0x3d5, reg->CR3C, par); + vga_out8(0x3d4, 0x43, par); + vga_out8(0x3d5, reg->CR43, par); + vga_out8(0x3d4, 0x5d, par); + vga_out8(0x3d5, reg->CR5D, par); + vga_out8(0x3d4, 0x5e, par); + vga_out8(0x3d5, reg->CR5E, par); + vga_out8(0x3d4, 0x65, par); + vga_out8(0x3d5, reg->CR65, par); + + /* save seq extended regs for DCLK PLL programming */ + vga_out8(0x3c4, 0x0e, par); + vga_out8(0x3c5, reg->SR0E, par); + vga_out8(0x3c4, 0x0f, par); + vga_out8(0x3c5, reg->SR0F, par); + vga_out8(0x3c4, 0x10, par); + vga_out8(0x3c5, reg->SR10, par); + vga_out8(0x3c4, 0x11, par); + vga_out8(0x3c5, reg->SR11, par); + vga_out8(0x3c4, 0x12, par); + vga_out8(0x3c5, reg->SR12, par); + vga_out8(0x3c4, 0x13, par); + vga_out8(0x3c5, reg->SR13, par); + vga_out8(0x3c4, 0x29, par); + vga_out8(0x3c5, reg->SR29, par); + + vga_out8(0x3c4, 0x15, par); + vga_out8(0x3c5, reg->SR15, par); + vga_out8(0x3c4, 0x30, par); + vga_out8(0x3c5, reg->SR30, par); + vga_out8(0x3c4, 0x18, par); + vga_out8(0x3c5, reg->SR18, par); + + /* Save flat panel expansion registers. */ + if (par->chip == S3_SAVAGE_MX) { + int i; + + for (i = 0; i < 8; i++) { + vga_out8(0x3c4, 0x54+i, par); + vga_out8(0x3c5, reg->SR54[i], par); + } + } + + vga_out8(0x3d4, 0x66, par); + cr66 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr66 | 0x80, par); + vga_out8(0x3d4, 0x3a, par); + cr3a = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr3a | 0x80, par); + + /* now save MIU regs */ + if (par->chip != S3_SAVAGE_MX) { + savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par); + savage_out32(MIU_CONTROL_REG, reg->MMPR1, par); + savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par); + savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par); + } + + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); +} + +static void savage_update_var(struct fb_var_screeninfo *var, + const struct fb_videomode *modedb) +{ + var->xres = var->xres_virtual = modedb->xres; + var->yres = modedb->yres; + if (var->yres_virtual < var->yres) + var->yres_virtual = var->yres; + var->xoffset = var->yoffset = 0; + var->pixclock = modedb->pixclock; + var->left_margin = modedb->left_margin; + var->right_margin = modedb->right_margin; + var->upper_margin = modedb->upper_margin; + var->lower_margin = modedb->lower_margin; + var->hsync_len = modedb->hsync_len; + var->vsync_len = modedb->vsync_len; + var->sync = modedb->sync; + var->vmode = modedb->vmode; +} + +static int savagefb_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct savagefb_par *par = info->par; + int memlen, vramlen, mode_valid = 0; + + DBG("savagefb_check_var"); + + var->transp.offset = 0; + var->transp.length = 0; + switch (var->bits_per_pixel) { + case 8: + var->red.offset = var->green.offset = + var->blue.offset = 0; + var->red.length = var->green.length = + var->blue.length = var->bits_per_pixel; + break; + case 16: + var->red.offset = 11; + var->red.length = 5; + var->green.offset = 5; + var->green.length = 6; + var->blue.offset = 0; + var->blue.length = 5; + break; + case 32: + var->transp.offset = 24; + var->transp.length = 8; + var->red.offset = 16; + var->red.length = 8; + var->green.offset = 8; + var->green.length = 8; + var->blue.offset = 0; + var->blue.length = 8; + break; + + default: + return -EINVAL; + } + + if (!info->monspecs.hfmax || !info->monspecs.vfmax || + !info->monspecs.dclkmax || !fb_validate_mode(var, info)) + mode_valid = 1; + + /* calculate modeline if supported by monitor */ + if (!mode_valid && info->monspecs.gtf) { + if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info)) + mode_valid = 1; + } + + if (!mode_valid) { + const struct fb_videomode *mode; + + mode = fb_find_best_mode(var, &info->modelist); + if (mode) { + savage_update_var(var, mode); + mode_valid = 1; + } + } + + if (!mode_valid && info->monspecs.modedb_len) + return -EINVAL; + + /* Is the mode larger than the LCD panel? */ + if (par->SavagePanelWidth && + (var->xres > par->SavagePanelWidth || + var->yres > par->SavagePanelHeight)) { + printk(KERN_INFO "Mode (%dx%d) larger than the LCD panel " + "(%dx%d)\n", var->xres, var->yres, + par->SavagePanelWidth, + par->SavagePanelHeight); + return -1; + } + + if (var->yres_virtual < var->yres) + var->yres_virtual = var->yres; + if (var->xres_virtual < var->xres) + var->xres_virtual = var->xres; + + vramlen = info->fix.smem_len; + + memlen = var->xres_virtual * var->bits_per_pixel * + var->yres_virtual / 8; + if (memlen > vramlen) { + var->yres_virtual = vramlen * 8 / + (var->xres_virtual * var->bits_per_pixel); + memlen = var->xres_virtual * var->bits_per_pixel * + var->yres_virtual / 8; + } + + /* we must round yres/xres down, we already rounded y/xres_virtual up + if it was possible. We should return -EINVAL, but I disagree */ + if (var->yres_virtual < var->yres) + var->yres = var->yres_virtual; + if (var->xres_virtual < var->xres) + var->xres = var->xres_virtual; + if (var->xoffset + var->xres > var->xres_virtual) + var->xoffset = var->xres_virtual - var->xres; + if (var->yoffset + var->yres > var->yres_virtual) + var->yoffset = var->yres_virtual - var->yres; + + return 0; +} + + +static int savagefb_decode_var(struct fb_var_screeninfo *var, + struct savagefb_par *par, + struct savage_reg *reg) +{ + struct xtimings timings; + int width, dclk, i, j; /*, refresh; */ + unsigned int m, n, r; + unsigned char tmp = 0; + unsigned int pixclock = var->pixclock; + + DBG("savagefb_decode_var"); + + memset(&timings, 0, sizeof(timings)); + + if (!pixclock) pixclock = 10000; /* 10ns = 100MHz */ + timings.Clock = 1000000000 / pixclock; + if (timings.Clock < 1) timings.Clock = 1; + timings.dblscan = var->vmode & FB_VMODE_DOUBLE; + timings.interlaced = var->vmode & FB_VMODE_INTERLACED; + timings.HDisplay = var->xres; + timings.HSyncStart = timings.HDisplay + var->right_margin; + timings.HSyncEnd = timings.HSyncStart + var->hsync_len; + timings.HTotal = timings.HSyncEnd + var->left_margin; + timings.VDisplay = var->yres; + timings.VSyncStart = timings.VDisplay + var->lower_margin; + timings.VSyncEnd = timings.VSyncStart + var->vsync_len; + timings.VTotal = timings.VSyncEnd + var->upper_margin; + timings.sync = var->sync; + + + par->depth = var->bits_per_pixel; + par->vwidth = var->xres_virtual; + + if (var->bits_per_pixel == 16 && par->chip == S3_SAVAGE3D) { + timings.HDisplay *= 2; + timings.HSyncStart *= 2; + timings.HSyncEnd *= 2; + timings.HTotal *= 2; + } + + /* + * This will allocate the datastructure and initialize all of the + * generic VGA registers. + */ + vgaHWInit(var, par, &timings, reg); + + /* We need to set CR67 whether or not we use the BIOS. */ + + dclk = timings.Clock; + reg->CR67 = 0x00; + + switch(var->bits_per_pixel) { + case 8: + if ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)) + reg->CR67 = 0x10; /* 8bpp, 2 pixels/clock */ + else + reg->CR67 = 0x00; /* 8bpp, 1 pixel/clock */ + break; + case 15: + if (S3_SAVAGE_MOBILE_SERIES(par->chip) || + ((par->chip == S3_SAVAGE2000) && (dclk >= 230000))) + reg->CR67 = 0x30; /* 15bpp, 2 pixel/clock */ + else + reg->CR67 = 0x20; /* 15bpp, 1 pixels/clock */ + break; + case 16: + if (S3_SAVAGE_MOBILE_SERIES(par->chip) || + ((par->chip == S3_SAVAGE2000) && (dclk >= 230000))) + reg->CR67 = 0x50; /* 16bpp, 2 pixel/clock */ + else + reg->CR67 = 0x40; /* 16bpp, 1 pixels/clock */ + break; + case 24: + reg->CR67 = 0x70; + break; + case 32: + reg->CR67 = 0xd0; + break; + } + + /* + * Either BIOS use is disabled, or we failed to find a suitable + * match. Fall back to traditional register-crunching. + */ + + vga_out8(0x3d4, 0x3a, par); + tmp = vga_in8(0x3d5, par); + if (1 /*FIXME:psav->pci_burst*/) + reg->CR3A = (tmp & 0x7f) | 0x15; + else + reg->CR3A = tmp | 0x95; + + reg->CR53 = 0x00; + reg->CR31 = 0x8c; + reg->CR66 = 0x89; + + vga_out8(0x3d4, 0x58, par); + reg->CR58 = vga_in8(0x3d5, par) & 0x80; + reg->CR58 |= 0x13; + + reg->SR15 = 0x03 | 0x80; + reg->SR18 = 0x00; + reg->CR43 = reg->CR45 = reg->CR65 = 0x00; + + vga_out8(0x3d4, 0x40, par); + reg->CR40 = vga_in8(0x3d5, par) & ~0x01; + + reg->MMPR0 = 0x010400; + reg->MMPR1 = 0x00; + reg->MMPR2 = 0x0808; + reg->MMPR3 = 0x08080810; + + SavageCalcClock(dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r); + /* m = 107; n = 4; r = 2; */ + + if (par->MCLK <= 0) { + reg->SR10 = 255; + reg->SR11 = 255; + } else { + common_calc_clock(par->MCLK, 1, 1, 31, 0, 3, 135000, 270000, + ®->SR11, ®->SR10); + /* reg->SR10 = 80; // MCLK == 286000 */ + /* reg->SR11 = 125; */ + } + + reg->SR12 = (r << 6) | (n & 0x3f); + reg->SR13 = m & 0xff; + reg->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2; + + if (var->bits_per_pixel < 24) + reg->MMPR0 -= 0x8000; + else + reg->MMPR0 -= 0x4000; + + if (timings.interlaced) + reg->CR42 = 0x20; + else + reg->CR42 = 0x00; + + reg->CR34 = 0x10; /* display fifo */ + + i = ((((timings.HTotal >> 3) - 5) & 0x100) >> 8) | + ((((timings.HDisplay >> 3) - 1) & 0x100) >> 7) | + ((((timings.HSyncStart >> 3) - 1) & 0x100) >> 6) | + ((timings.HSyncStart & 0x800) >> 7); + + if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 64) + i |= 0x08; + if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 32) + i |= 0x20; + + j = (reg->CRTC[0] + ((i & 0x01) << 8) + + reg->CRTC[4] + ((i & 0x10) << 4) + 1) / 2; + + if (j - (reg->CRTC[4] + ((i & 0x10) << 4)) < 4) { + if (reg->CRTC[4] + ((i & 0x10) << 4) + 4 <= + reg->CRTC[0] + ((i & 0x01) << 8)) + j = reg->CRTC[4] + ((i & 0x10) << 4) + 4; + else + j = reg->CRTC[0] + ((i & 0x01) << 8) + 1; + } + + reg->CR3B = j & 0xff; + i |= (j & 0x100) >> 2; + reg->CR3C = (reg->CRTC[0] + ((i & 0x01) << 8)) / 2; + reg->CR5D = i; + reg->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) | + (((timings.VDisplay - 1) & 0x400) >> 9) | + (((timings.VSyncStart) & 0x400) >> 8) | + (((timings.VSyncStart) & 0x400) >> 6) | 0x40; + width = (var->xres_virtual * ((var->bits_per_pixel+7) / 8)) >> 3; + reg->CR91 = reg->CRTC[19] = 0xff & width; + reg->CR51 = (0x300 & width) >> 4; + reg->CR90 = 0x80 | (width >> 8); + reg->MiscOutReg |= 0x0c; + + /* Set frame buffer description. */ + + if (var->bits_per_pixel <= 8) + reg->CR50 = 0; + else if (var->bits_per_pixel <= 16) + reg->CR50 = 0x10; + else + reg->CR50 = 0x30; + + if (var->xres_virtual <= 640) + reg->CR50 |= 0x40; + else if (var->xres_virtual == 800) + reg->CR50 |= 0x80; + else if (var->xres_virtual == 1024) + reg->CR50 |= 0x00; + else if (var->xres_virtual == 1152) + reg->CR50 |= 0x01; + else if (var->xres_virtual == 1280) + reg->CR50 |= 0xc0; + else if (var->xres_virtual == 1600) + reg->CR50 |= 0x81; + else + reg->CR50 |= 0xc1; /* Use GBD */ + + if (par->chip == S3_SAVAGE2000) + reg->CR33 = 0x08; + else + reg->CR33 = 0x20; + + reg->CRTC[0x17] = 0xeb; + + reg->CR67 |= 1; + + vga_out8(0x3d4, 0x36, par); + reg->CR36 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x68, par); + reg->CR68 = vga_in8(0x3d5, par); + reg->CR69 = 0; + vga_out8(0x3d4, 0x6f, par); + reg->CR6F = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x86, par); + reg->CR86 = vga_in8(0x3d5, par); + vga_out8(0x3d4, 0x88, par); + reg->CR88 = vga_in8(0x3d5, par) | 0x08; + vga_out8(0x3d4, 0xb0, par); + reg->CRB0 = vga_in8(0x3d5, par) | 0x80; + + return 0; +} + +/* --------------------------------------------------------------------- */ + +/* + * Set a single color register. Return != 0 for invalid regno. + */ +static int savagefb_setcolreg(unsigned regno, + unsigned red, + unsigned green, + unsigned blue, + unsigned transp, + struct fb_info *info) +{ + struct savagefb_par *par = info->par; + + if (regno >= NR_PALETTE) + return -EINVAL; + + par->palette[regno].red = red; + par->palette[regno].green = green; + par->palette[regno].blue = blue; + par->palette[regno].transp = transp; + + switch (info->var.bits_per_pixel) { + case 8: + vga_out8(0x3c8, regno, par); + + vga_out8(0x3c9, red >> 10, par); + vga_out8(0x3c9, green >> 10, par); + vga_out8(0x3c9, blue >> 10, par); + break; + + case 16: + if (regno < 16) + ((u32 *)info->pseudo_palette)[regno] = + ((red & 0xf800) ) | + ((green & 0xfc00) >> 5) | + ((blue & 0xf800) >> 11); + break; + + case 24: + if (regno < 16) + ((u32 *)info->pseudo_palette)[regno] = + ((red & 0xff00) << 8) | + ((green & 0xff00) ) | + ((blue & 0xff00) >> 8); + break; + case 32: + if (regno < 16) + ((u32 *)info->pseudo_palette)[regno] = + ((transp & 0xff00) << 16) | + ((red & 0xff00) << 8) | + ((green & 0xff00) ) | + ((blue & 0xff00) >> 8); + break; + + default: + return 1; + } + + return 0; +} + +static void savagefb_set_par_int(struct savagefb_par *par, struct savage_reg *reg) +{ + unsigned char tmp, cr3a, cr66, cr67; + + DBG("savagefb_set_par_int"); + + par->SavageWaitIdle(par); + + vga_out8(0x3c2, 0x23, par); + + vga_out16(0x3d4, 0x4838, par); + vga_out16(0x3d4, 0xa539, par); + vga_out16(0x3c4, 0x0608, par); + + vgaHWProtect(par, 1); + + /* + * Some Savage/MX and /IX systems go nuts when trying to exit the + * server after WindowMaker has displayed a gradient background. I + * haven't been able to find what causes it, but a non-destructive + * switch to mode 3 here seems to eliminate the issue. + */ + + VerticalRetraceWait(par); + vga_out8(0x3d4, 0x67, par); + cr67 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr67/*par->CR67*/ & ~0x0c, par); /* no STREAMS yet */ + + vga_out8(0x3d4, 0x23, par); + vga_out8(0x3d5, 0x00, par); + vga_out8(0x3d4, 0x26, par); + vga_out8(0x3d5, 0x00, par); + + /* restore extended regs */ + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, reg->CR66, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, reg->CR3A, par); + vga_out8(0x3d4, 0x31, par); + vga_out8(0x3d5, reg->CR31, par); + vga_out8(0x3d4, 0x32, par); + vga_out8(0x3d5, reg->CR32, par); + vga_out8(0x3d4, 0x58, par); + vga_out8(0x3d5, reg->CR58, par); + vga_out8(0x3d4, 0x53, par); + vga_out8(0x3d5, reg->CR53 & 0x7f, par); + + vga_out16(0x3c4, 0x0608, par); + + /* Restore DCLK registers. */ + + vga_out8(0x3c4, 0x0e, par); + vga_out8(0x3c5, reg->SR0E, par); + vga_out8(0x3c4, 0x0f, par); + vga_out8(0x3c5, reg->SR0F, par); + vga_out8(0x3c4, 0x29, par); + vga_out8(0x3c5, reg->SR29, par); + vga_out8(0x3c4, 0x15, par); + vga_out8(0x3c5, reg->SR15, par); + + /* Restore flat panel expansion registers. */ + if (par->chip == S3_SAVAGE_MX) { + int i; + + for (i = 0; i < 8; i++) { + vga_out8(0x3c4, 0x54+i, par); + vga_out8(0x3c5, reg->SR54[i], par); + } + } + + vgaHWRestore (par, reg); + + /* extended mode timing registers */ + vga_out8(0x3d4, 0x53, par); + vga_out8(0x3d5, reg->CR53, par); + vga_out8(0x3d4, 0x5d, par); + vga_out8(0x3d5, reg->CR5D, par); + vga_out8(0x3d4, 0x5e, par); + vga_out8(0x3d5, reg->CR5E, par); + vga_out8(0x3d4, 0x3b, par); + vga_out8(0x3d5, reg->CR3B, par); + vga_out8(0x3d4, 0x3c, par); + vga_out8(0x3d5, reg->CR3C, par); + vga_out8(0x3d4, 0x43, par); + vga_out8(0x3d5, reg->CR43, par); + vga_out8(0x3d4, 0x65, par); + vga_out8(0x3d5, reg->CR65, par); + + /* restore the desired video mode with cr67 */ + vga_out8(0x3d4, 0x67, par); + /* following part not present in X11 driver */ + cr67 = vga_in8(0x3d5, par) & 0xf; + vga_out8(0x3d5, 0x50 | cr67, par); + mdelay(10); + vga_out8(0x3d4, 0x67, par); + /* end of part */ + vga_out8(0x3d5, reg->CR67 & ~0x0c, par); + + /* other mode timing and extended regs */ + vga_out8(0x3d4, 0x34, par); + vga_out8(0x3d5, reg->CR34, par); + vga_out8(0x3d4, 0x40, par); + vga_out8(0x3d5, reg->CR40, par); + vga_out8(0x3d4, 0x42, par); + vga_out8(0x3d5, reg->CR42, par); + vga_out8(0x3d4, 0x45, par); + vga_out8(0x3d5, reg->CR45, par); + vga_out8(0x3d4, 0x50, par); + vga_out8(0x3d5, reg->CR50, par); + vga_out8(0x3d4, 0x51, par); + vga_out8(0x3d5, reg->CR51, par); + + /* memory timings */ + vga_out8(0x3d4, 0x36, par); + vga_out8(0x3d5, reg->CR36, par); + vga_out8(0x3d4, 0x60, par); + vga_out8(0x3d5, reg->CR60, par); + vga_out8(0x3d4, 0x68, par); + vga_out8(0x3d5, reg->CR68, par); + vga_out8(0x3d4, 0x69, par); + vga_out8(0x3d5, reg->CR69, par); + vga_out8(0x3d4, 0x6f, par); + vga_out8(0x3d5, reg->CR6F, par); + + vga_out8(0x3d4, 0x33, par); + vga_out8(0x3d5, reg->CR33, par); + vga_out8(0x3d4, 0x86, par); + vga_out8(0x3d5, reg->CR86, par); + vga_out8(0x3d4, 0x88, par); + vga_out8(0x3d5, reg->CR88, par); + vga_out8(0x3d4, 0x90, par); + vga_out8(0x3d5, reg->CR90, par); + vga_out8(0x3d4, 0x91, par); + vga_out8(0x3d5, reg->CR91, par); + + if (par->chip == S3_SAVAGE4) { + vga_out8(0x3d4, 0xb0, par); + vga_out8(0x3d5, reg->CRB0, par); + } + + vga_out8(0x3d4, 0x32, par); + vga_out8(0x3d5, reg->CR32, par); + + /* unlock extended seq regs */ + vga_out8(0x3c4, 0x08, par); + vga_out8(0x3c5, 0x06, par); + + /* Restore extended sequencer regs for MCLK. SR10 == 255 indicates + * that we should leave the default SR10 and SR11 values there. + */ + if (reg->SR10 != 255) { + vga_out8(0x3c4, 0x10, par); + vga_out8(0x3c5, reg->SR10, par); + vga_out8(0x3c4, 0x11, par); + vga_out8(0x3c5, reg->SR11, par); + } + + /* restore extended seq regs for dclk */ + vga_out8(0x3c4, 0x0e, par); + vga_out8(0x3c5, reg->SR0E, par); + vga_out8(0x3c4, 0x0f, par); + vga_out8(0x3c5, reg->SR0F, par); + vga_out8(0x3c4, 0x12, par); + vga_out8(0x3c5, reg->SR12, par); + vga_out8(0x3c4, 0x13, par); + vga_out8(0x3c5, reg->SR13, par); + vga_out8(0x3c4, 0x29, par); + vga_out8(0x3c5, reg->SR29, par); + vga_out8(0x3c4, 0x18, par); + vga_out8(0x3c5, reg->SR18, par); + + /* load new m, n pll values for dclk & mclk */ + vga_out8(0x3c4, 0x15, par); + tmp = vga_in8(0x3c5, par) & ~0x21; + + vga_out8(0x3c5, tmp | 0x03, par); + vga_out8(0x3c5, tmp | 0x23, par); + vga_out8(0x3c5, tmp | 0x03, par); + vga_out8(0x3c5, reg->SR15, par); + udelay(100); + + vga_out8(0x3c4, 0x30, par); + vga_out8(0x3c5, reg->SR30, par); + vga_out8(0x3c4, 0x08, par); + vga_out8(0x3c5, reg->SR08, par); + + /* now write out cr67 in full, possibly starting STREAMS */ + VerticalRetraceWait(par); + vga_out8(0x3d4, 0x67, par); + vga_out8(0x3d5, reg->CR67, par); + + vga_out8(0x3d4, 0x66, par); + cr66 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr66 | 0x80, par); + vga_out8(0x3d4, 0x3a, par); + cr3a = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr3a | 0x80, par); + + if (par->chip != S3_SAVAGE_MX) { + VerticalRetraceWait(par); + savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par); + par->SavageWaitIdle(par); + savage_out32(MIU_CONTROL_REG, reg->MMPR1, par); + par->SavageWaitIdle(par); + savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par); + par->SavageWaitIdle(par); + savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par); + } + + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66, par); + vga_out8(0x3d4, 0x3a, par); + vga_out8(0x3d5, cr3a, par); + + SavageSetup2DEngine(par); + vgaHWProtect(par, 0); +} + +static void savagefb_update_start(struct savagefb_par *par, int base) +{ + /* program the start address registers */ + vga_out16(0x3d4, (base & 0x00ff00) | 0x0c, par); + vga_out16(0x3d4, ((base & 0x00ff) << 8) | 0x0d, par); + vga_out8(0x3d4, 0x69, par); + vga_out8(0x3d5, (base & 0x7f0000) >> 16, par); +} + + +static void savagefb_set_fix(struct fb_info *info) +{ + info->fix.line_length = info->var.xres_virtual * + info->var.bits_per_pixel / 8; + + if (info->var.bits_per_pixel == 8) { + info->fix.visual = FB_VISUAL_PSEUDOCOLOR; + info->fix.xpanstep = 4; + } else { + info->fix.visual = FB_VISUAL_TRUECOLOR; + info->fix.xpanstep = 2; + } + +} + +static int savagefb_set_par(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + struct fb_var_screeninfo *var = &info->var; + int err; + + DBG("savagefb_set_par"); + err = savagefb_decode_var(var, par, &par->state); + if (err) + return err; + + if (par->dacSpeedBpp <= 0) { + if (var->bits_per_pixel > 24) + par->dacSpeedBpp = par->clock[3]; + else if (var->bits_per_pixel >= 24) + par->dacSpeedBpp = par->clock[2]; + else if ((var->bits_per_pixel > 8) && (var->bits_per_pixel < 24)) + par->dacSpeedBpp = par->clock[1]; + else if (var->bits_per_pixel <= 8) + par->dacSpeedBpp = par->clock[0]; + } + + /* Set ramdac limits */ + par->maxClock = par->dacSpeedBpp; + par->minClock = 10000; + + savagefb_set_par_int(par, &par->state); + fb_set_cmap(&info->cmap, info); + savagefb_set_fix(info); + savagefb_set_clip(info); + + SavagePrintRegs(par); + return 0; +} + +/* + * Pan or Wrap the Display + */ +static int savagefb_pan_display(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct savagefb_par *par = info->par; + int base; + + base = (var->yoffset * info->fix.line_length + + (var->xoffset & ~1) * ((info->var.bits_per_pixel+7) / 8)) >> 2; + + savagefb_update_start(par, base); + return 0; +} + +static int savagefb_blank(int blank, struct fb_info *info) +{ + struct savagefb_par *par = info->par; + u8 sr8 = 0, srd = 0; + + if (par->display_type == DISP_CRT) { + vga_out8(0x3c4, 0x08, par); + sr8 = vga_in8(0x3c5, par); + sr8 |= 0x06; + vga_out8(0x3c5, sr8, par); + vga_out8(0x3c4, 0x0d, par); + srd = vga_in8(0x3c5, par); + srd &= 0x50; + + switch (blank) { + case FB_BLANK_UNBLANK: + case FB_BLANK_NORMAL: + break; + case FB_BLANK_VSYNC_SUSPEND: + srd |= 0x10; + break; + case FB_BLANK_HSYNC_SUSPEND: + srd |= 0x40; + break; + case FB_BLANK_POWERDOWN: + srd |= 0x50; + break; + } + + vga_out8(0x3c4, 0x0d, par); + vga_out8(0x3c5, srd, par); + } + + if (par->display_type == DISP_LCD || + par->display_type == DISP_DFP) { + switch(blank) { + case FB_BLANK_UNBLANK: + case FB_BLANK_NORMAL: + vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */ + vga_out8(0x3c5, vga_in8(0x3c5, par) | 0x10, par); + break; + case FB_BLANK_VSYNC_SUSPEND: + case FB_BLANK_HSYNC_SUSPEND: + case FB_BLANK_POWERDOWN: + vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */ + vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x10, par); + break; + } + } + + return (blank == FB_BLANK_NORMAL) ? 1 : 0; +} + +static int savagefb_open(struct fb_info *info, int user) +{ + struct savagefb_par *par = info->par; + + mutex_lock(&par->open_lock); + + if (!par->open_count) { + memset(&par->vgastate, 0, sizeof(par->vgastate)); + par->vgastate.flags = VGA_SAVE_CMAP | VGA_SAVE_FONTS | + VGA_SAVE_MODE; + par->vgastate.vgabase = par->mmio.vbase + 0x8000; + save_vga(&par->vgastate); + savage_get_default_par(par, &par->initial); + } + + par->open_count++; + mutex_unlock(&par->open_lock); + return 0; +} + +static int savagefb_release(struct fb_info *info, int user) +{ + struct savagefb_par *par = info->par; + + mutex_lock(&par->open_lock); + + if (par->open_count == 1) { + savage_set_default_par(par, &par->initial); + restore_vga(&par->vgastate); + } + + par->open_count--; + mutex_unlock(&par->open_lock); + return 0; +} + +static const struct fb_ops savagefb_ops = { + .owner = THIS_MODULE, + .fb_open = savagefb_open, + .fb_release = savagefb_release, + .fb_check_var = savagefb_check_var, + .fb_set_par = savagefb_set_par, + .fb_setcolreg = savagefb_setcolreg, + .fb_pan_display = savagefb_pan_display, + .fb_blank = savagefb_blank, +#if defined(CONFIG_FB_SAVAGE_ACCEL) + .fb_fillrect = savagefb_fillrect, + .fb_copyarea = savagefb_copyarea, + .fb_imageblit = savagefb_imageblit, + .fb_sync = savagefb_sync, +#else + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +#endif +}; + +/* --------------------------------------------------------------------- */ + +static const struct fb_var_screeninfo savagefb_var800x600x8 = { + .accel_flags = FB_ACCELF_TEXT, + .xres = 800, + .yres = 600, + .xres_virtual = 800, + .yres_virtual = 600, + .bits_per_pixel = 8, + .pixclock = 25000, + .left_margin = 88, + .right_margin = 40, + .upper_margin = 23, + .lower_margin = 1, + .hsync_len = 128, + .vsync_len = 4, + .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + .vmode = FB_VMODE_NONINTERLACED +}; + +static void savage_enable_mmio(struct savagefb_par *par) +{ + unsigned char val; + + DBG("savage_enable_mmio\n"); + + val = vga_in8(0x3c3, par); + vga_out8(0x3c3, val | 0x01, par); + val = vga_in8(0x3cc, par); + vga_out8(0x3c2, val | 0x01, par); + + if (par->chip >= S3_SAVAGE4) { + vga_out8(0x3d4, 0x40, par); + val = vga_in8(0x3d5, par); + vga_out8(0x3d5, val | 1, par); + } +} + + +static void savage_disable_mmio(struct savagefb_par *par) +{ + unsigned char val; + + DBG("savage_disable_mmio\n"); + + if (par->chip >= S3_SAVAGE4) { + vga_out8(0x3d4, 0x40, par); + val = vga_in8(0x3d5, par); + vga_out8(0x3d5, val | 1, par); + } +} + + +static int savage_map_mmio(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + DBG("savage_map_mmio"); + + if (S3_SAVAGE3D_SERIES(par->chip)) + par->mmio.pbase = pci_resource_start(par->pcidev, 0) + + SAVAGE_NEWMMIO_REGBASE_S3; + else + par->mmio.pbase = pci_resource_start(par->pcidev, 0) + + SAVAGE_NEWMMIO_REGBASE_S4; + + par->mmio.len = SAVAGE_NEWMMIO_REGSIZE; + + par->mmio.vbase = ioremap(par->mmio.pbase, par->mmio.len); + if (!par->mmio.vbase) { + printk("savagefb: unable to map memory mapped IO\n"); + return -ENOMEM; + } else + printk(KERN_INFO "savagefb: mapped io at %p\n", + par->mmio.vbase); + + info->fix.mmio_start = par->mmio.pbase; + info->fix.mmio_len = par->mmio.len; + + par->bci_base = (u32 __iomem *)(par->mmio.vbase + BCI_BUFFER_OFFSET); + par->bci_ptr = 0; + + savage_enable_mmio(par); + + return 0; +} + +static void savage_unmap_mmio(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + DBG("savage_unmap_mmio"); + + savage_disable_mmio(par); + + if (par->mmio.vbase) { + iounmap(par->mmio.vbase); + par->mmio.vbase = NULL; + } +} + +static int savage_map_video(struct fb_info *info, int video_len) +{ + struct savagefb_par *par = info->par; + int resource; + + DBG("savage_map_video"); + + if (S3_SAVAGE3D_SERIES(par->chip)) + resource = 0; + else + resource = 1; + + par->video.pbase = pci_resource_start(par->pcidev, resource); + par->video.len = video_len; + par->video.vbase = ioremap_wc(par->video.pbase, par->video.len); + + if (!par->video.vbase) { + printk("savagefb: unable to map screen memory\n"); + return -ENOMEM; + } else + printk(KERN_INFO "savagefb: mapped framebuffer at %p, " + "pbase == %x\n", par->video.vbase, par->video.pbase); + + info->fix.smem_start = par->video.pbase; + info->fix.smem_len = par->video.len - par->cob_size; + info->screen_base = par->video.vbase; + par->video.wc_cookie = arch_phys_wc_add(par->video.pbase, video_len); + + /* Clear framebuffer, it's all white in memory after boot */ + memset_io(par->video.vbase, 0, par->video.len); + + return 0; +} + +static void savage_unmap_video(struct fb_info *info) +{ + struct savagefb_par *par = info->par; + + DBG("savage_unmap_video"); + + if (par->video.vbase) { + arch_phys_wc_del(par->video.wc_cookie); + iounmap(par->video.vbase); + par->video.vbase = NULL; + info->screen_base = NULL; + } +} + +static int savage_init_hw(struct savagefb_par *par) +{ + unsigned char config1, m, n, n1, n2, sr8, cr3f, cr66 = 0, tmp; + + static unsigned char RamSavage3D[] = { 8, 4, 4, 2 }; + static unsigned char RamSavage4[] = { 2, 4, 8, 12, 16, 32, 64, 32 }; + static unsigned char RamSavageMX[] = { 2, 8, 4, 16, 8, 16, 4, 16 }; + static unsigned char RamSavageNB[] = { 0, 2, 4, 8, 16, 32, 2, 2 }; + int videoRam, videoRambytes, dvi; + + DBG("savage_init_hw"); + + /* unprotect CRTC[0-7] */ + vga_out8(0x3d4, 0x11, par); + tmp = vga_in8(0x3d5, par); + vga_out8(0x3d5, tmp & 0x7f, par); + + /* unlock extended regs */ + vga_out16(0x3d4, 0x4838, par); + vga_out16(0x3d4, 0xa039, par); + vga_out16(0x3c4, 0x0608, par); + + vga_out8(0x3d4, 0x40, par); + tmp = vga_in8(0x3d5, par); + vga_out8(0x3d5, tmp & ~0x01, par); + + /* unlock sys regs */ + vga_out8(0x3d4, 0x38, par); + vga_out8(0x3d5, 0x48, par); + + /* Unlock system registers. */ + vga_out16(0x3d4, 0x4838, par); + + /* Next go on to detect amount of installed ram */ + + vga_out8(0x3d4, 0x36, par); /* for register CR36 (CONFG_REG1), */ + config1 = vga_in8(0x3d5, par); /* get amount of vram installed */ + + /* Compute the amount of video memory and offscreen memory. */ + + switch (par->chip) { + case S3_SAVAGE3D: + videoRam = RamSavage3D[(config1 & 0xC0) >> 6 ] * 1024; + break; + + case S3_SAVAGE4: + /* + * The Savage4 has one ugly special case to consider. On + * systems with 4 banks of 2Mx32 SDRAM, the BIOS says 4MB + * when it really means 8MB. Why do it the same when you + * can do it different... + */ + vga_out8(0x3d4, 0x68, par); /* memory control 1 */ + if ((vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6)) + RamSavage4[1] = 8; + fallthrough; + + case S3_SAVAGE2000: + videoRam = RamSavage4[(config1 & 0xE0) >> 5] * 1024; + break; + + case S3_SAVAGE_MX: + case S3_SUPERSAVAGE: + videoRam = RamSavageMX[(config1 & 0x0E) >> 1] * 1024; + break; + + case S3_PROSAVAGE: + case S3_PROSAVAGEDDR: + case S3_TWISTER: + videoRam = RamSavageNB[(config1 & 0xE0) >> 5] * 1024; + break; + + default: + /* How did we get here? */ + videoRam = 0; + break; + } + + videoRambytes = videoRam * 1024; + + printk(KERN_INFO "savagefb: probed videoram: %dk\n", videoRam); + + /* reset graphics engine to avoid memory corruption */ + vga_out8(0x3d4, 0x66, par); + cr66 = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr66 | 0x02, par); + usleep_range(10000, 11000); + + vga_out8(0x3d4, 0x66, par); + vga_out8(0x3d5, cr66 & ~0x02, par); /* clear reset flag */ + usleep_range(10000, 11000); + + + /* + * reset memory interface, 3D engine, AGP master, PCI master, + * master engine unit, motion compensation/LPB + */ + vga_out8(0x3d4, 0x3f, par); + cr3f = vga_in8(0x3d5, par); + vga_out8(0x3d5, cr3f | 0x08, par); + usleep_range(10000, 11000); + + vga_out8(0x3d4, 0x3f, par); + vga_out8(0x3d5, cr3f & ~0x08, par); /* clear reset flags */ + usleep_range(10000, 11000); + + /* Savage ramdac speeds */ + par->numClocks = 4; + par->clock[0] = 250000; + par->clock[1] = 250000; + par->clock[2] = 220000; + par->clock[3] = 220000; + + /* detect current mclk */ + vga_out8(0x3c4, 0x08, par); + sr8 = vga_in8(0x3c5, par); + vga_out8(0x3c5, 0x06, par); + vga_out8(0x3c4, 0x10, par); + n = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x11, par); + m = vga_in8(0x3c5, par); + vga_out8(0x3c4, 0x08, par); + vga_out8(0x3c5, sr8, par); + m &= 0x7f; + n1 = n & 0x1f; + n2 = (n >> 5) & 0x03; + par->MCLK = ((1431818 * (m+2)) / (n1+2) / (1 << n2) + 50) / 100; + printk(KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n", + par->MCLK); + + /* check for DVI/flat panel */ + dvi = 0; + + if (par->chip == S3_SAVAGE4) { + unsigned char sr30 = 0x00; + + vga_out8(0x3c4, 0x30, par); + /* clear bit 1 */ + vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x02, par); + sr30 = vga_in8(0x3c5, par); + if (sr30 & 0x02 /*0x04 */) { + dvi = 1; + printk("savagefb: Digital Flat Panel Detected\n"); + } + } + + if ((S3_SAVAGE_MOBILE_SERIES(par->chip) || + S3_MOBILE_TWISTER_SERIES(par->chip)) && !par->crtonly) + par->display_type = DISP_LCD; + else if (dvi || (par->chip == S3_SAVAGE4 && par->dvi)) + par->display_type = DISP_DFP; + else + par->display_type = DISP_CRT; + + /* Check LCD panel parrmation */ + + if (par->display_type == DISP_LCD) { + unsigned char cr6b = VGArCR(0x6b, par); + + int panelX = (VGArSEQ(0x61, par) + + ((VGArSEQ(0x66, par) & 0x02) << 7) + 1) * 8; + int panelY = (VGArSEQ(0x69, par) + + ((VGArSEQ(0x6e, par) & 0x70) << 4) + 1); + + char * sTechnology = "Unknown"; + + /* OK, I admit it. I don't know how to limit the max dot clock + * for LCD panels of various sizes. I thought I copied the + * formula from the BIOS, but many users have parrmed me of + * my folly. + * + * Instead, I'll abandon any attempt to automatically limit the + * clock, and add an LCDClock option to XF86Config. Some day, + * I should come back to this. + */ + + enum ACTIVE_DISPLAYS { /* These are the bits in CR6B */ + ActiveCRT = 0x01, + ActiveLCD = 0x02, + ActiveTV = 0x04, + ActiveCRT2 = 0x20, + ActiveDUO = 0x80 + }; + + if ((VGArSEQ(0x39, par) & 0x03) == 0) { + sTechnology = "TFT"; + } else if ((VGArSEQ(0x30, par) & 0x01) == 0) { + sTechnology = "DSTN"; + } else { + sTechnology = "STN"; + } + + printk(KERN_INFO "savagefb: %dx%d %s LCD panel detected %s\n", + panelX, panelY, sTechnology, + cr6b & ActiveLCD ? "and active" : "but not active"); + + if (cr6b & ActiveLCD) { + /* + * If the LCD is active and panel expansion is enabled, + * we probably want to kill the HW cursor. + */ + + printk(KERN_INFO "savagefb: Limiting video mode to " + "%dx%d\n", panelX, panelY); + + par->SavagePanelWidth = panelX; + par->SavagePanelHeight = panelY; + + } else + par->display_type = DISP_CRT; + } + + savage_get_default_par(par, &par->state); + par->save = par->state; + + if (S3_SAVAGE4_SERIES(par->chip)) { + /* + * The Savage4 and ProSavage have COB coherency bugs which + * render the buffer useless. We disable it. + */ + par->cob_index = 2; + par->cob_size = 0x8000 << par->cob_index; + par->cob_offset = videoRambytes; + } else { + /* We use 128kB for the COB on all chips. */ + + par->cob_index = 7; + par->cob_size = 0x400 << par->cob_index; + par->cob_offset = videoRambytes - par->cob_size; + } + + return videoRambytes; +} + +static int savage_init_fb_info(struct fb_info *info, struct pci_dev *dev, + const struct pci_device_id *id) +{ + struct savagefb_par *par = info->par; + int err = 0; + + par->pcidev = dev; + + info->fix.type = FB_TYPE_PACKED_PIXELS; + info->fix.type_aux = 0; + info->fix.ypanstep = 1; + info->fix.ywrapstep = 0; + info->fix.accel = id->driver_data; + + switch (info->fix.accel) { + case FB_ACCEL_SUPERSAVAGE: + par->chip = S3_SUPERSAVAGE; + snprintf(info->fix.id, 16, "SuperSavage"); + break; + case FB_ACCEL_SAVAGE4: + par->chip = S3_SAVAGE4; + snprintf(info->fix.id, 16, "Savage4"); + break; + case FB_ACCEL_SAVAGE3D: + par->chip = S3_SAVAGE3D; + snprintf(info->fix.id, 16, "Savage3D"); + break; + case FB_ACCEL_SAVAGE3D_MV: + par->chip = S3_SAVAGE3D; + snprintf(info->fix.id, 16, "Savage3D-MV"); + break; + case FB_ACCEL_SAVAGE2000: + par->chip = S3_SAVAGE2000; + snprintf(info->fix.id, 16, "Savage2000"); + break; + case FB_ACCEL_SAVAGE_MX_MV: + par->chip = S3_SAVAGE_MX; + snprintf(info->fix.id, 16, "Savage/MX-MV"); + break; + case FB_ACCEL_SAVAGE_MX: + par->chip = S3_SAVAGE_MX; + snprintf(info->fix.id, 16, "Savage/MX"); + break; + case FB_ACCEL_SAVAGE_IX_MV: + par->chip = S3_SAVAGE_MX; + snprintf(info->fix.id, 16, "Savage/IX-MV"); + break; + case FB_ACCEL_SAVAGE_IX: + par->chip = S3_SAVAGE_MX; + snprintf(info->fix.id, 16, "Savage/IX"); + break; + case FB_ACCEL_PROSAVAGE_PM: + par->chip = S3_PROSAVAGE; + snprintf(info->fix.id, 16, "ProSavagePM"); + break; + case FB_ACCEL_PROSAVAGE_KM: + par->chip = S3_PROSAVAGE; + snprintf(info->fix.id, 16, "ProSavageKM"); + break; + case FB_ACCEL_S3TWISTER_P: + par->chip = S3_TWISTER; + snprintf(info->fix.id, 16, "TwisterP"); + break; + case FB_ACCEL_S3TWISTER_K: + par->chip = S3_TWISTER; + snprintf(info->fix.id, 16, "TwisterK"); + break; + case FB_ACCEL_PROSAVAGE_DDR: + par->chip = S3_PROSAVAGEDDR; + snprintf(info->fix.id, 16, "ProSavageDDR"); + break; + case FB_ACCEL_PROSAVAGE_DDRK: + par->chip = S3_PROSAVAGEDDR; + snprintf(info->fix.id, 16, "ProSavage8"); + break; + } + + if (S3_SAVAGE3D_SERIES(par->chip)) { + par->SavageWaitIdle = savage3D_waitidle; + par->SavageWaitFifo = savage3D_waitfifo; + } else if (S3_SAVAGE4_SERIES(par->chip) || + S3_SUPERSAVAGE == par->chip) { + par->SavageWaitIdle = savage4_waitidle; + par->SavageWaitFifo = savage4_waitfifo; + } else { + par->SavageWaitIdle = savage2000_waitidle; + par->SavageWaitFifo = savage2000_waitfifo; + } + + info->var.nonstd = 0; + info->var.activate = FB_ACTIVATE_NOW; + info->var.width = -1; + info->var.height = -1; + info->var.accel_flags = 0; + + info->fbops = &savagefb_ops; + info->flags = FBINFO_HWACCEL_YPAN | + FBINFO_HWACCEL_XPAN; + + info->pseudo_palette = par->pseudo_palette; + +#if defined(CONFIG_FB_SAVAGE_ACCEL) + /* FIFO size + padding for commands */ + info->pixmap.addr = kcalloc(8, 1024, GFP_KERNEL); + + err = -ENOMEM; + if (info->pixmap.addr) { + info->pixmap.size = 8*1024; + info->pixmap.scan_align = 4; + info->pixmap.buf_align = 4; + info->pixmap.access_align = 32; + + err = fb_alloc_cmap(&info->cmap, NR_PALETTE, 0); + if (!err) + info->flags |= FBINFO_HWACCEL_COPYAREA | + FBINFO_HWACCEL_FILLRECT | + FBINFO_HWACCEL_IMAGEBLIT; + else + kfree(info->pixmap.addr); + } +#endif + return err; +} + +/* --------------------------------------------------------------------- */ + +static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id) +{ + struct fb_info *info; + struct savagefb_par *par; + u_int h_sync, v_sync; + unsigned char __maybe_unused *edid; + int err, lpitch; + int video_len; + + DBG("savagefb_probe"); + + err = aperture_remove_conflicting_pci_devices(dev, "savagefb"); + if (err) + return err; + + info = framebuffer_alloc(sizeof(struct savagefb_par), &dev->dev); + if (!info) + return -ENOMEM; + par = info->par; + mutex_init(&par->open_lock); + err = pci_enable_device(dev); + if (err) + goto failed_enable; + + if ((err = pci_request_regions(dev, "savagefb"))) { + printk(KERN_ERR "cannot request PCI regions\n"); + goto failed_enable; + } + + err = -ENOMEM; + + if ((err = savage_init_fb_info(info, dev, id))) + goto failed_init; + + err = savage_map_mmio(info); + if (err) + goto failed_mmio; + + video_len = savage_init_hw(par); + /* FIXME: can't be negative */ + if (video_len < 0) { + err = video_len; + goto failed_mmio; + } + + err = savage_map_video(info, video_len); + if (err) + goto failed_video; + + INIT_LIST_HEAD(&info->modelist); +#if defined(CONFIG_FB_SAVAGE_I2C) + savagefb_create_i2c_busses(info); + savagefb_probe_i2c_connector(info, &edid); + fb_edid_to_monspecs(edid, &info->monspecs); + kfree(edid); + fb_videomode_to_modelist(info->monspecs.modedb, + info->monspecs.modedb_len, + &info->modelist); +#endif + info->var = savagefb_var800x600x8; + /* if a panel was detected, default to a CVT mode instead */ + if (par->SavagePanelWidth) { + struct fb_videomode cvt_mode; + + memset(&cvt_mode, 0, sizeof(cvt_mode)); + cvt_mode.xres = par->SavagePanelWidth; + cvt_mode.yres = par->SavagePanelHeight; + cvt_mode.refresh = 60; + /* FIXME: if we know there is only the panel + * we can enable reduced blanking as well */ + if (fb_find_mode_cvt(&cvt_mode, 0, 0)) + printk(KERN_WARNING "No CVT mode found for panel\n"); + else if (fb_find_mode(&info->var, info, NULL, NULL, 0, + &cvt_mode, 0) != 3) + info->var = savagefb_var800x600x8; + } + + if (mode_option) { + fb_find_mode(&info->var, info, mode_option, + info->monspecs.modedb, info->monspecs.modedb_len, + NULL, 8); + } else if (info->monspecs.modedb != NULL) { + const struct fb_videomode *mode; + + mode = fb_find_best_display(&info->monspecs, &info->modelist); + savage_update_var(&info->var, mode); + } + + /* maximize virtual vertical length */ + lpitch = info->var.xres_virtual*((info->var.bits_per_pixel + 7) >> 3); + info->var.yres_virtual = info->fix.smem_len/lpitch; + + if (info->var.yres_virtual < info->var.yres) { + err = -ENOMEM; + goto failed; + } + +#if defined(CONFIG_FB_SAVAGE_ACCEL) + /* + * The clipping coordinates are masked with 0xFFF, so limit our + * virtual resolutions to these sizes. + */ + if (info->var.yres_virtual > 0x1000) + info->var.yres_virtual = 0x1000; + + if (info->var.xres_virtual > 0x1000) + info->var.xres_virtual = 0x1000; +#endif + savagefb_check_var(&info->var, info); + savagefb_set_fix(info); + + /* + * Calculate the hsync and vsync frequencies. Note that + * we split the 1e12 constant up so that we can preserve + * the precision and fit the results into 32-bit registers. + * (1953125000 * 512 = 1e12) + */ + h_sync = 1953125000 / info->var.pixclock; + h_sync = h_sync * 512 / (info->var.xres + info->var.left_margin + + info->var.right_margin + + info->var.hsync_len); + v_sync = h_sync / (info->var.yres + info->var.upper_margin + + info->var.lower_margin + info->var.vsync_len); + + printk(KERN_INFO "savagefb v" SAVAGEFB_VERSION ": " + "%dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n", + info->fix.smem_len >> 10, + info->var.xres, info->var.yres, + h_sync / 1000, h_sync % 1000, v_sync); + + + fb_destroy_modedb(info->monspecs.modedb); + info->monspecs.modedb = NULL; + + err = register_framebuffer(info); + if (err < 0) + goto failed; + + printk(KERN_INFO "fb: S3 %s frame buffer device\n", + info->fix.id); + + /* + * Our driver data + */ + pci_set_drvdata(dev, info); + + return 0; + + failed: +#ifdef CONFIG_FB_SAVAGE_I2C + savagefb_delete_i2c_busses(info); +#endif + fb_alloc_cmap(&info->cmap, 0, 0); + savage_unmap_video(info); + failed_video: + savage_unmap_mmio(info); + failed_mmio: + kfree(info->pixmap.addr); + failed_init: + pci_release_regions(dev); + failed_enable: + framebuffer_release(info); + + return err; +} + +static void savagefb_remove(struct pci_dev *dev) +{ + struct fb_info *info = pci_get_drvdata(dev); + + DBG("savagefb_remove"); + + if (info) { + unregister_framebuffer(info); + +#ifdef CONFIG_FB_SAVAGE_I2C + savagefb_delete_i2c_busses(info); +#endif + fb_alloc_cmap(&info->cmap, 0, 0); + savage_unmap_video(info); + savage_unmap_mmio(info); + kfree(info->pixmap.addr); + pci_release_regions(dev); + framebuffer_release(info); + } +} + +static int savagefb_suspend_late(struct device *dev, pm_message_t mesg) +{ + struct fb_info *info = dev_get_drvdata(dev); + struct savagefb_par *par = info->par; + + DBG("savagefb_suspend"); + + if (mesg.event == PM_EVENT_PRETHAW) + mesg.event = PM_EVENT_FREEZE; + par->pm_state = mesg.event; + dev->power.power_state = mesg; + + /* + * For PM_EVENT_FREEZE, do not power down so the console + * can remain active. + */ + if (mesg.event == PM_EVENT_FREEZE) + return 0; + + console_lock(); + fb_set_suspend(info, 1); + + if (info->fbops->fb_sync) + info->fbops->fb_sync(info); + + savagefb_blank(FB_BLANK_POWERDOWN, info); + savage_set_default_par(par, &par->save); + savage_disable_mmio(par); + console_unlock(); + + return 0; +} + +static int __maybe_unused savagefb_suspend(struct device *dev) +{ + return savagefb_suspend_late(dev, PMSG_SUSPEND); +} + +static int __maybe_unused savagefb_hibernate(struct device *dev) +{ + return savagefb_suspend_late(dev, PMSG_HIBERNATE); +} + +static int __maybe_unused savagefb_freeze(struct device *dev) +{ + return savagefb_suspend_late(dev, PMSG_FREEZE); +} + +static int __maybe_unused savagefb_resume(struct device *dev) +{ + struct fb_info *info = dev_get_drvdata(dev); + struct savagefb_par *par = info->par; + int cur_state = par->pm_state; + + DBG("savage_resume"); + + par->pm_state = PM_EVENT_ON; + + /* + * The adapter was not powered down coming back from a + * PM_EVENT_FREEZE. + */ + if (cur_state == PM_EVENT_FREEZE) + return 0; + + console_lock(); + + savage_enable_mmio(par); + savage_init_hw(par); + savagefb_set_par(info); + fb_set_suspend(info, 0); + savagefb_blank(FB_BLANK_UNBLANK, info); + console_unlock(); + + return 0; +} + +static const struct dev_pm_ops savagefb_pm_ops = { +#ifdef CONFIG_PM_SLEEP + .suspend = savagefb_suspend, + .resume = savagefb_resume, + .freeze = savagefb_freeze, + .thaw = savagefb_resume, + .poweroff = savagefb_hibernate, + .restore = savagefb_resume, +#endif +}; + +static const struct pci_device_id savagefb_devices[] = { + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX128, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64C, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128SDR, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128DDR, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64SDR, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64DDR, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCSDR, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCDDR, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE4}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D_MV, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D_MV}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE2000}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX_MV, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX_MV}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX_MV, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX_MV}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_PM, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_PM}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_KM, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_KM}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_P, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_P}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_K, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_K}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDR, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDR}, + + {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDRK, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDRK}, + + {0, 0, 0, 0, 0, 0, 0} +}; + +MODULE_DEVICE_TABLE(pci, savagefb_devices); + +static struct pci_driver savagefb_driver = { + .name = "savagefb", + .id_table = savagefb_devices, + .probe = savagefb_probe, + .driver.pm = &savagefb_pm_ops, + .remove = savagefb_remove, +}; + +/* **************************** exit-time only **************************** */ + +static void __exit savage_done(void) +{ + DBG("savage_done"); + pci_unregister_driver(&savagefb_driver); +} + + +/* ************************* init in-kernel code ************************** */ + +static int __init savagefb_setup(char *options) +{ +#ifndef MODULE + char *this_opt; + + if (!options || !*options) + return 0; + + while ((this_opt = strsep(&options, ",")) != NULL) { + mode_option = this_opt; + } +#endif /* !MODULE */ + return 0; +} + +static int __init savagefb_init(void) +{ + char *option; + + DBG("savagefb_init"); + + if (fb_modesetting_disabled("savagefb")) + return -ENODEV; + + if (fb_get_options("savagefb", &option)) + return -ENODEV; + + savagefb_setup(option); + return pci_register_driver(&savagefb_driver); + +} + +module_init(savagefb_init); +module_exit(savage_done); + +module_param(mode_option, charp, 0); +MODULE_PARM_DESC(mode_option, "Specify initial video mode"); |