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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/video/fbdev/i810
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/video/fbdev/i810')
-rw-r--r--drivers/video/fbdev/i810/Makefile18
-rw-r--r--drivers/video/fbdev/i810/i810-i2c.c175
-rw-r--r--drivers/video/fbdev/i810/i810.h298
-rw-r--r--drivers/video/fbdev/i810/i810_accel.c456
-rw-r--r--drivers/video/fbdev/i810/i810_dvt.c312
-rw-r--r--drivers/video/fbdev/i810/i810_gtf.c276
-rw-r--r--drivers/video/fbdev/i810/i810_main.c2226
-rw-r--r--drivers/video/fbdev/i810/i810_main.h69
-rw-r--r--drivers/video/fbdev/i810/i810_regs.h275
9 files changed, 4105 insertions, 0 deletions
diff --git a/drivers/video/fbdev/i810/Makefile b/drivers/video/fbdev/i810/Makefile
new file mode 100644
index 000000000..3e466510f
--- /dev/null
+++ b/drivers/video/fbdev/i810/Makefile
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Intel 810/815 framebuffer driver
+#
+
+obj-$(CONFIG_FB_I810) += i810fb.o
+
+i810fb-objs := i810_main.o i810_accel.o
+
+ifdef CONFIG_FB_I810_GTF
+i810fb-objs += i810_gtf.o
+else
+i810fb-objs += i810_dvt.o
+endif
+
+ifdef CONFIG_FB_I810_I2C
+i810fb-objs += i810-i2c.o
+endif
diff --git a/drivers/video/fbdev/i810/i810-i2c.c b/drivers/video/fbdev/i810/i810-i2c.c
new file mode 100644
index 000000000..7db17d0d8
--- /dev/null
+++ b/drivers/video/fbdev/i810/i810-i2c.c
@@ -0,0 +1,175 @@
+ /*-*- linux-c -*-
+ * linux/drivers/video/i810-i2c.c -- Intel 810/815 I2C support
+ *
+ * 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/module.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/gfp.h>
+#include <linux/pci.h>
+#include <linux/fb.h>
+#include "i810.h"
+#include "i810_regs.h"
+#include "i810_main.h"
+#include "../edid.h"
+
+/* bit locations in the registers */
+#define SCL_DIR_MASK 0x0001
+#define SCL_DIR 0x0002
+#define SCL_VAL_MASK 0x0004
+#define SCL_VAL_OUT 0x0008
+#define SCL_VAL_IN 0x0010
+#define SDA_DIR_MASK 0x0100
+#define SDA_DIR 0x0200
+#define SDA_VAL_MASK 0x0400
+#define SDA_VAL_OUT 0x0800
+#define SDA_VAL_IN 0x1000
+
+#define DEBUG /* define this for verbose EDID parsing output */
+
+#ifdef DEBUG
+#define DPRINTK(fmt, args...) printk(fmt,## args)
+#else
+#define DPRINTK(fmt, args...)
+#endif
+
+static void i810i2c_setscl(void *data, int state)
+{
+ struct i810fb_i2c_chan *chan = data;
+ struct i810fb_par *par = chan->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ if (state)
+ i810_writel(mmio, chan->ddc_base, SCL_DIR_MASK | SCL_VAL_MASK);
+ else
+ i810_writel(mmio, chan->ddc_base, SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK);
+ i810_readl(mmio, chan->ddc_base); /* flush posted write */
+}
+
+static void i810i2c_setsda(void *data, int state)
+{
+ struct i810fb_i2c_chan *chan = data;
+ struct i810fb_par *par = chan->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ if (state)
+ i810_writel(mmio, chan->ddc_base, SDA_DIR_MASK | SDA_VAL_MASK);
+ else
+ i810_writel(mmio, chan->ddc_base, SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK);
+ i810_readl(mmio, chan->ddc_base); /* flush posted write */
+}
+
+static int i810i2c_getscl(void *data)
+{
+ struct i810fb_i2c_chan *chan = data;
+ struct i810fb_par *par = chan->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_writel(mmio, chan->ddc_base, SCL_DIR_MASK);
+ i810_writel(mmio, chan->ddc_base, 0);
+ return ((i810_readl(mmio, chan->ddc_base) & SCL_VAL_IN) != 0);
+}
+
+static int i810i2c_getsda(void *data)
+{
+ struct i810fb_i2c_chan *chan = data;
+ struct i810fb_par *par = chan->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_writel(mmio, chan->ddc_base, SDA_DIR_MASK);
+ i810_writel(mmio, chan->ddc_base, 0);
+ return ((i810_readl(mmio, chan->ddc_base) & SDA_VAL_IN) != 0);
+}
+
+static int i810_setup_i2c_bus(struct i810fb_i2c_chan *chan, const char *name)
+{
+ int rc;
+
+ strcpy(chan->adapter.name, name);
+ chan->adapter.owner = THIS_MODULE;
+ chan->adapter.algo_data = &chan->algo;
+ chan->adapter.dev.parent = &chan->par->dev->dev;
+ chan->algo.setsda = i810i2c_setsda;
+ chan->algo.setscl = i810i2c_setscl;
+ chan->algo.getsda = i810i2c_getsda;
+ chan->algo.getscl = i810i2c_getscl;
+ chan->algo.udelay = 10;
+ chan->algo.timeout = (HZ/2);
+ 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->dev->dev, "I2C bus %s registered.\n",name);
+ else {
+ dev_warn(&chan->par->dev->dev, "Failed to register I2C bus "
+ "%s.\n", name);
+ chan->par = NULL;
+ }
+
+ return rc;
+}
+
+void i810_create_i2c_busses(struct i810fb_par *par)
+{
+ par->chan[0].par = par;
+ par->chan[1].par = par;
+ par->chan[2].par = par;
+
+ par->chan[0].ddc_base = GPIOA;
+ i810_setup_i2c_bus(&par->chan[0], "I810-DDC");
+ par->chan[1].ddc_base = GPIOB;
+ i810_setup_i2c_bus(&par->chan[1], "I810-I2C");
+ par->chan[2].ddc_base = GPIOC;
+ i810_setup_i2c_bus(&par->chan[2], "I810-GPIOC");
+}
+
+void i810_delete_i2c_busses(struct i810fb_par *par)
+{
+ if (par->chan[0].par)
+ i2c_del_adapter(&par->chan[0].adapter);
+ par->chan[0].par = NULL;
+
+ if (par->chan[1].par)
+ i2c_del_adapter(&par->chan[1].adapter);
+ par->chan[1].par = NULL;
+
+ if (par->chan[2].par)
+ i2c_del_adapter(&par->chan[2].adapter);
+ par->chan[2].par = NULL;
+}
+
+int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid, int conn)
+{
+ struct i810fb_par *par = info->par;
+ u8 *edid = NULL;
+
+ DPRINTK("i810-i2c: Probe DDC%i Bus\n", conn+1);
+ if (conn < par->ddc_num) {
+ edid = fb_ddc_read(&par->chan[conn].adapter);
+ } else {
+ const u8 *e = fb_firmware_edid(info->device);
+
+ if (e != NULL) {
+ DPRINTK("i810-i2c: Getting EDID from BIOS\n");
+ edid = kmemdup(e, EDID_LENGTH, GFP_KERNEL);
+ }
+ }
+
+ *out_edid = edid;
+
+ return (edid) ? 0 : 1;
+}
diff --git a/drivers/video/fbdev/i810/i810.h b/drivers/video/fbdev/i810/i810.h
new file mode 100644
index 000000000..7b1c002bf
--- /dev/null
+++ b/drivers/video/fbdev/i810/i810.h
@@ -0,0 +1,298 @@
+/*-*- linux-c -*-
+ * linux/drivers/video/i810.h -- Intel 810 General Definitions/Declarations
+ *
+ * Copyright (C) 2001 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.
+ */
+
+#ifndef __I810_H__
+#define __I810_H__
+
+#include <linux/list.h>
+#include <linux/agp_backend.h>
+#include <linux/fb.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <video/vga.h>
+
+/* Fence */
+#define TILEWALK_X (0 << 12)
+#define TILEWALK_Y (1 << 12)
+
+/* Raster ops */
+#define COLOR_COPY_ROP 0xF0
+#define PAT_COPY_ROP 0xCC
+#define CLEAR_ROP 0x00
+#define WHITE_ROP 0xFF
+#define INVERT_ROP 0x55
+#define XOR_ROP 0x5A
+
+/* 2D Engine definitions */
+#define SOLIDPATTERN 0x80000000
+#define NONSOLID 0x00000000
+#define BPP8 (0 << 24)
+#define BPP16 (1 << 24)
+#define BPP24 (2 << 24)
+
+#define PIXCONF8 (2 << 16)
+#define PIXCONF15 (4 << 16)
+#define PIXCONF16 (5 << 16)
+#define PIXCONF24 (6 << 16)
+#define PIXCONF32 (7 << 16)
+
+#define DYN_COLOR_EN (1 << 26)
+#define DYN_COLOR_DIS (0 << 26)
+#define INCREMENT 0x00000000
+#define DECREMENT (0x01 << 30)
+#define ARB_ON 0x00000001
+#define ARB_OFF 0x00000000
+#define SYNC_FLIP 0x00000000
+#define ASYNC_FLIP 0x00000040
+#define OPTYPE_MASK 0xE0000000
+#define PARSER_MASK 0x001F8000
+#define D2_MASK 0x001FC000 /* 2D mask */
+
+/* Instruction type */
+/* There are more but pertains to 3D */
+#define PARSER 0x00000000
+#define BLIT (0x02 << 29)
+#define RENDER (0x03 << 29)
+
+/* Parser */
+#define NOP 0x00 /* No operation, padding */
+#define BP_INT (0x01 << 23) /* Breakpoint interrupt */
+#define USR_INT (0x02 << 23) /* User interrupt */
+#define WAIT_FOR_EVNT (0x03 << 23) /* Wait for event */
+#define FLUSH (0x04 << 23)
+#define CONTEXT_SEL (0x05 << 23)
+#define REPORT_HEAD (0x07 << 23)
+#define ARB_ON_OFF (0x08 << 23)
+#define OVERLAY_FLIP (0x11 << 23)
+#define LOAD_SCAN_INC (0x12 << 23)
+#define LOAD_SCAN_EX (0x13 << 23)
+#define FRONT_BUFFER (0x14 << 23)
+#define DEST_BUFFER (0x15 << 23)
+#define Z_BUFFER (0x16 << 23)
+
+#define STORE_DWORD_IMM (0x20 << 23)
+#define STORE_DWORD_IDX (0x21 << 23)
+#define BATCH_BUFFER (0x30 << 23)
+
+/* Blit */
+#define SETUP_BLIT 0x00
+#define SETUP_MONO_PATTERN_SL_BLT (0x10 << 22)
+#define PIXEL_BLT (0x20 << 22)
+#define SCANLINE_BLT (0x21 << 22)
+#define TEXT_BLT (0x22 << 22)
+#define TEXT_IMM_BLT (0x30 << 22)
+#define COLOR_BLT (0x40 << 22)
+#define MONO_PAT_BLIT (0x42 << 22)
+#define SOURCE_COPY_BLIT (0x43 << 22)
+#define MONO_SOURCE_COPY_BLIT (0x44 << 22)
+#define SOURCE_COPY_IMMEDIATE (0x60 << 22)
+#define MONO_SOURCE_COPY_IMMEDIATE (0x61 << 22)
+
+#define VERSION_MAJOR 0
+#define VERSION_MINOR 9
+#define VERSION_TEENIE 0
+#define BRANCH_VERSION ""
+
+
+/* mvo: intel i815 */
+#ifndef PCI_DEVICE_ID_INTEL_82815_100
+ #define PCI_DEVICE_ID_INTEL_82815_100 0x1102
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_82815_NOAGP
+ #define PCI_DEVICE_ID_INTEL_82815_NOAGP 0x1112
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_82815_FULL_CTRL
+ #define PCI_DEVICE_ID_INTEL_82815_FULL_CTRL 0x1130
+#endif
+
+/* General Defines */
+#define I810_PAGESIZE 4096
+#define MAX_DMA_SIZE (1024 * 4096)
+#define SAREA_SIZE 4096
+#define PCI_I810_MISCC 0x72
+#define MMIO_SIZE (512*1024)
+#define GTT_SIZE (16*1024)
+#define RINGBUFFER_SIZE (64*1024)
+#define CURSOR_SIZE 4096
+#define OFF 0
+#define ON 1
+#define MAX_KEY 256
+#define WAIT_COUNT 10000000
+#define IRING_PAD 8
+#define FONTDATAMAX 8192
+/* Masks (AND ops) and OR's */
+#define FB_START_MASK (0x3f << (32 - 6))
+#define MMIO_ADDR_MASK (0x1FFF << (32 - 13))
+#define FREQ_MASK (1 << 4)
+#define SCR_OFF 0x20
+#define DRAM_ON 0x08
+#define DRAM_OFF 0xE7
+#define PG_ENABLE_MASK 0x01
+#define RING_SIZE_MASK (RINGBUFFER_SIZE - 1)
+
+/* defines for restoring registers partially */
+#define ADDR_MAP_MASK (0x07 << 5)
+#define DISP_CTRL ~0
+#define PIXCONF_0 (0x64 << 8)
+#define PIXCONF_2 (0xF3 << 24)
+#define PIXCONF_1 (0xF0 << 16)
+#define MN_MASK 0x3FF03FF
+#define P_OR (0x7 << 4)
+#define DAC_BIT (1 << 16)
+#define INTERLACE_BIT (1 << 7)
+#define IER_MASK (3 << 13)
+#define IMR_MASK (3 << 13)
+
+/* Power Management */
+#define DPMS_MASK 0xF0000
+#define POWERON 0x00000
+#define STANDBY 0x20000
+#define SUSPEND 0x80000
+#define POWERDOWN 0xA0000
+#define EMR_MASK ~0x3F
+#define FW_BLC_MASK ~(0x3F|(7 << 8)|(0x3F << 12)|(7 << 20))
+
+/* Ringbuffer */
+#define RBUFFER_START_MASK 0xFFFFF000
+#define RBUFFER_SIZE_MASK 0x001FF000
+#define RBUFFER_HEAD_MASK 0x001FFFFC
+#define RBUFFER_TAIL_MASK 0x001FFFF8
+
+/* Video Timings */
+#define REF_FREQ 24000000
+#define TARGET_N_MAX 30
+
+#define MAX_PIXELCLOCK 230000000
+#define MIN_PIXELCLOCK 15000000
+#define VFMAX 60
+#define VFMIN 60
+#define HFMAX 30000
+#define HFMIN 29000
+
+/* Cursor */
+#define CURSOR_ENABLE_MASK 0x1000
+#define CURSOR_MODE_64_TRANS 4
+#define CURSOR_MODE_64_XOR 5
+#define CURSOR_MODE_64_3C 6
+#define COORD_INACTIVE 0
+#define COORD_ACTIVE (1 << 4)
+#define EXTENDED_PALETTE 1
+
+/* AGP Memory Types*/
+#define AGP_NORMAL_MEMORY 0
+#define AGP_DCACHE_MEMORY 1
+#define AGP_PHYSICAL_MEMORY 2
+
+/* Allocated resource Flags */
+#define FRAMEBUFFER_REQ 1
+#define MMIO_REQ 2
+#define PCI_DEVICE_ENABLED 4
+#define HAS_FONTCACHE 8
+
+/* driver flags */
+#define HAS_ACCELERATION 2
+#define ALWAYS_SYNC 4
+#define LOCKUP 8
+
+struct gtt_data {
+ struct agp_memory *i810_fb_memory;
+ struct agp_memory *i810_cursor_memory;
+};
+
+struct mode_registers {
+ u32 pixclock, M, N, P;
+ u8 cr00, cr01, cr02, cr03;
+ u8 cr04, cr05, cr06, cr07;
+ u8 cr09, cr10, cr11, cr12;
+ u8 cr13, cr15, cr16, cr30;
+ u8 cr31, cr32, cr33, cr35, cr39;
+ u32 bpp8_100, bpp16_100;
+ u32 bpp24_100, bpp8_133;
+ u32 bpp16_133, bpp24_133;
+ u8 msr;
+};
+
+struct heap_data {
+ unsigned long physical;
+ __u8 __iomem *virtual;
+ u32 offset;
+ u32 size;
+};
+
+struct state_registers {
+ u32 dclk_1d, dclk_2d, dclk_0ds;
+ u32 pixconf, fw_blc, pgtbl_ctl;
+ u32 fence0, hws_pga, dplystas;
+ u16 bltcntl, hwstam, ier, iir, imr;
+ u8 cr00, cr01, cr02, cr03, cr04;
+ u8 cr05, cr06, cr07, cr08, cr09;
+ u8 cr10, cr11, cr12, cr13, cr14;
+ u8 cr15, cr16, cr17, cr80, gr10;
+ u8 cr30, cr31, cr32, cr33, cr35;
+ u8 cr39, cr41, cr70, sr01, msr;
+};
+
+struct i810fb_par;
+
+struct i810fb_i2c_chan {
+ struct i810fb_par *par;
+ struct i2c_adapter adapter;
+ struct i2c_algo_bit_data algo;
+ unsigned long ddc_base;
+};
+
+struct i810fb_par {
+ struct mode_registers regs;
+ struct state_registers hw_state;
+ struct gtt_data i810_gtt;
+ struct fb_ops i810fb_ops;
+ struct pci_dev *dev;
+ struct heap_data aperture;
+ struct heap_data fb;
+ struct heap_data iring;
+ struct heap_data cursor_heap;
+ struct vgastate state;
+ struct i810fb_i2c_chan chan[3];
+ struct mutex open_lock;
+ unsigned int use_count;
+ u32 pseudo_palette[16];
+ unsigned long mmio_start_phys;
+ u8 __iomem *mmio_start_virtual;
+ u8 *edid;
+ u32 pitch;
+ u32 pixconf;
+ u32 watermark;
+ u32 mem_freq;
+ u32 res_flags;
+ u32 dev_flags;
+ u32 cur_tail;
+ u32 depth;
+ u32 blit_bpp;
+ u32 ovract;
+ u32 cur_state;
+ u32 ddc_num;
+ int wc_cookie;
+ u16 bltcntl;
+ u8 interlace;
+};
+
+/*
+ * Register I/O
+ */
+#define i810_readb(where, mmio) readb(mmio + where)
+#define i810_readw(where, mmio) readw(mmio + where)
+#define i810_readl(where, mmio) readl(mmio + where)
+#define i810_writeb(where, mmio, val) writeb(val, mmio + where)
+#define i810_writew(where, mmio, val) writew(val, mmio + where)
+#define i810_writel(where, mmio, val) writel(val, mmio + where)
+
+#endif /* __I810_H__ */
diff --git a/drivers/video/fbdev/i810/i810_accel.c b/drivers/video/fbdev/i810/i810_accel.c
new file mode 100644
index 000000000..7672d2ea9
--- /dev/null
+++ b/drivers/video/fbdev/i810/i810_accel.c
@@ -0,0 +1,456 @@
+/*-*- linux-c -*-
+ * linux/drivers/video/i810_accel.c -- Hardware Acceleration
+ *
+ * Copyright (C) 2001 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 "i810_regs.h"
+#include "i810.h"
+#include "i810_main.h"
+
+static u32 i810fb_rop[] = {
+ COLOR_COPY_ROP, /* ROP_COPY */
+ XOR_ROP /* ROP_XOR */
+};
+
+/* Macros */
+#define PUT_RING(n) { \
+ i810_writel(par->cur_tail, par->iring.virtual, n); \
+ par->cur_tail += 4; \
+ par->cur_tail &= RING_SIZE_MASK; \
+}
+
+extern void flush_cache(void);
+
+/************************************************************/
+
+/* BLT Engine Routines */
+static inline void i810_report_error(u8 __iomem *mmio)
+{
+ printk("IIR : 0x%04x\n"
+ "EIR : 0x%04x\n"
+ "PGTBL_ER: 0x%04x\n"
+ "IPEIR : 0x%04x\n"
+ "IPEHR : 0x%04x\n",
+ i810_readw(IIR, mmio),
+ i810_readb(EIR, mmio),
+ i810_readl(PGTBL_ER, mmio),
+ i810_readl(IPEIR, mmio),
+ i810_readl(IPEHR, mmio));
+}
+
+/**
+ * wait_for_space - check ring buffer free space
+ * @space: amount of ringbuffer space needed in bytes
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * The function waits until a free space from the ringbuffer
+ * is available
+ */
+static inline int wait_for_space(struct fb_info *info, u32 space)
+{
+ struct i810fb_par *par = info->par;
+ u32 head, count = WAIT_COUNT, tail;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ tail = par->cur_tail;
+ while (count--) {
+ head = i810_readl(IRING + 4, mmio) & RBUFFER_HEAD_MASK;
+ if ((tail == head) ||
+ (tail > head &&
+ (par->iring.size - tail + head) >= space) ||
+ (tail < head && (head - tail) >= space)) {
+ return 0;
+ }
+ }
+ printk("ringbuffer lockup!!!\n");
+ i810_report_error(mmio);
+ par->dev_flags |= LOCKUP;
+ info->pixmap.scan_align = 1;
+ return 1;
+}
+
+/**
+ * wait_for_engine_idle - waits for all hardware engines to finish
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * This waits for lring(0), iring(1), and batch(3), etc to finish and
+ * waits until ringbuffer is empty.
+ */
+static inline int wait_for_engine_idle(struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+ int count = WAIT_COUNT;
+
+ if (wait_for_space(info, par->iring.size)) /* flush */
+ return 1;
+
+ while((i810_readw(INSTDONE, mmio) & 0x7B) != 0x7B && --count);
+ if (count) return 0;
+
+ printk("accel engine lockup!!!\n");
+ printk("INSTDONE: 0x%04x\n", i810_readl(INSTDONE, mmio));
+ i810_report_error(mmio);
+ par->dev_flags |= LOCKUP;
+ info->pixmap.scan_align = 1;
+ return 1;
+}
+
+/* begin_iring - prepares the ringbuffer
+ * @space: length of sequence in dwords
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Checks/waits for sufficient space in ringbuffer of size
+ * space. Returns the tail of the buffer
+ */
+static inline u32 begin_iring(struct fb_info *info, u32 space)
+{
+ struct i810fb_par *par = info->par;
+
+ if (par->dev_flags & ALWAYS_SYNC)
+ wait_for_engine_idle(info);
+ return wait_for_space(info, space);
+}
+
+/**
+ * end_iring - advances the buffer
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * This advances the tail of the ringbuffer, effectively
+ * beginning the execution of the graphics instruction sequence.
+ */
+static inline void end_iring(struct i810fb_par *par)
+{
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_writel(IRING, mmio, par->cur_tail);
+}
+
+/**
+ * source_copy_blit - BLIT transfer operation
+ * @dwidth: width of rectangular graphics data
+ * @dheight: height of rectangular graphics data
+ * @dpitch: bytes per line of destination buffer
+ * @xdir: direction of copy (left to right or right to left)
+ * @src: address of first pixel to read from
+ * @dest: address of first pixel to write to
+ * @from: source address
+ * @where: destination address
+ * @rop: raster operation
+ * @blit_bpp: pixel format which can be different from the
+ * framebuffer's pixelformat
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * This is a BLIT operation typically used when doing
+ * a 'Copy and Paste'
+ */
+static inline void source_copy_blit(int dwidth, int dheight, int dpitch,
+ int xdir, int src, int dest, int rop,
+ int blit_bpp, struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+
+ if (begin_iring(info, 24 + IRING_PAD)) return;
+
+ PUT_RING(BLIT | SOURCE_COPY_BLIT | 4);
+ PUT_RING(xdir | rop << 16 | dpitch | DYN_COLOR_EN | blit_bpp);
+ PUT_RING(dheight << 16 | dwidth);
+ PUT_RING(dest);
+ PUT_RING(dpitch);
+ PUT_RING(src);
+
+ end_iring(par);
+}
+
+/**
+ * color_blit - solid color BLIT operation
+ * @width: width of destination
+ * @height: height of destination
+ * @pitch: pixels per line of the buffer
+ * @dest: address of first pixel to write to
+ * @where: destination
+ * @rop: raster operation
+ * @what: color to transfer
+ * @blit_bpp: pixel format which can be different from the
+ * framebuffer's pixelformat
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * A BLIT operation which can be used for color fill/rectangular fill
+ */
+static inline void color_blit(int width, int height, int pitch, int dest,
+ int rop, int what, int blit_bpp,
+ struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+
+ if (begin_iring(info, 24 + IRING_PAD)) return;
+
+ PUT_RING(BLIT | COLOR_BLT | 3);
+ PUT_RING(rop << 16 | pitch | SOLIDPATTERN | DYN_COLOR_EN | blit_bpp);
+ PUT_RING(height << 16 | width);
+ PUT_RING(dest);
+ PUT_RING(what);
+ PUT_RING(NOP);
+
+ end_iring(par);
+}
+
+/**
+ * mono_src_copy_imm_blit - color expand from system memory to framebuffer
+ * @dwidth: width of destination
+ * @dheight: height of destination
+ * @dpitch: pixels per line of the buffer
+ * @dsize: size of bitmap in double words
+ * @dest: address of first byte of pixel;
+ * @rop: raster operation
+ * @blit_bpp: pixelformat to use which can be different from the
+ * framebuffer's pixelformat
+ * @src: address of image data
+ * @bg: backgound color
+ * @fg: forground color
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * A color expand operation where the source data is placed in the
+ * ringbuffer itself. Useful for drawing text.
+ *
+ * REQUIREMENT:
+ * The end of a scanline must be padded to the next word.
+ */
+static inline void mono_src_copy_imm_blit(int dwidth, int dheight, int dpitch,
+ int dsize, int blit_bpp, int rop,
+ int dest, const u32 *src, int bg,
+ int fg, struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+
+ if (begin_iring(info, 24 + (dsize << 2) + IRING_PAD)) return;
+
+ PUT_RING(BLIT | MONO_SOURCE_COPY_IMMEDIATE | (4 + dsize));
+ PUT_RING(DYN_COLOR_EN | blit_bpp | rop << 16 | dpitch);
+ PUT_RING(dheight << 16 | dwidth);
+ PUT_RING(dest);
+ PUT_RING(bg);
+ PUT_RING(fg);
+ while (dsize--)
+ PUT_RING(*src++);
+
+ end_iring(par);
+}
+
+static inline void load_front(int offset, struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+
+ if (begin_iring(info, 8 + IRING_PAD)) return;
+
+ PUT_RING(PARSER | FLUSH);
+ PUT_RING(NOP);
+
+ end_iring(par);
+
+ if (begin_iring(info, 8 + IRING_PAD)) return;
+
+ PUT_RING(PARSER | FRONT_BUFFER | ((par->pitch >> 3) << 8));
+ PUT_RING((par->fb.offset << 12) + offset);
+
+ end_iring(par);
+}
+
+/**
+ * i810fb_iring_enable - enables/disables the ringbuffer
+ * @mode: enable or disable
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Enables or disables the ringbuffer, effectively enabling or
+ * disabling the instruction/acceleration engine.
+ */
+static inline void i810fb_iring_enable(struct i810fb_par *par, u32 mode)
+{
+ u32 tmp;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ tmp = i810_readl(IRING + 12, mmio);
+ if (mode == OFF)
+ tmp &= ~1;
+ else
+ tmp |= 1;
+ flush_cache();
+ i810_writel(IRING + 12, mmio, tmp);
+}
+
+void i810fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+ struct i810fb_par *par = info->par;
+ u32 dx, dy, width, height, dest, rop = 0, color = 0;
+
+ if (!info->var.accel_flags || par->dev_flags & LOCKUP ||
+ par->depth == 4) {
+ cfb_fillrect(info, rect);
+ return;
+ }
+
+ if (par->depth == 1)
+ color = rect->color;
+ else
+ color = ((u32 *) (info->pseudo_palette))[rect->color];
+
+ rop = i810fb_rop[rect->rop];
+
+ dx = rect->dx * par->depth;
+ width = rect->width * par->depth;
+ dy = rect->dy;
+ height = rect->height;
+
+ dest = info->fix.smem_start + (dy * info->fix.line_length) + dx;
+ color_blit(width, height, info->fix.line_length, dest, rop, color,
+ par->blit_bpp, info);
+}
+
+void i810fb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
+{
+ struct i810fb_par *par = info->par;
+ u32 sx, sy, dx, dy, pitch, width, height, src, dest, xdir;
+
+ if (!info->var.accel_flags || par->dev_flags & LOCKUP ||
+ par->depth == 4) {
+ cfb_copyarea(info, region);
+ return;
+ }
+
+ dx = region->dx * par->depth;
+ sx = region->sx * par->depth;
+ width = region->width * par->depth;
+ sy = region->sy;
+ dy = region->dy;
+ height = region->height;
+
+ if (dx <= sx) {
+ xdir = INCREMENT;
+ }
+ else {
+ xdir = DECREMENT;
+ sx += width - 1;
+ dx += width - 1;
+ }
+ if (dy <= sy) {
+ pitch = info->fix.line_length;
+ }
+ else {
+ pitch = (-(info->fix.line_length)) & 0xFFFF;
+ sy += height - 1;
+ dy += height - 1;
+ }
+ src = info->fix.smem_start + (sy * info->fix.line_length) + sx;
+ dest = info->fix.smem_start + (dy * info->fix.line_length) + dx;
+
+ source_copy_blit(width, height, pitch, xdir, src, dest,
+ PAT_COPY_ROP, par->blit_bpp, info);
+}
+
+void i810fb_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+ struct i810fb_par *par = info->par;
+ u32 fg = 0, bg = 0, size, dst;
+
+ if (!info->var.accel_flags || par->dev_flags & LOCKUP ||
+ par->depth == 4 || image->depth != 1) {
+ cfb_imageblit(info, image);
+ return;
+ }
+
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ fg = image->fg_color;
+ bg = image->bg_color;
+ break;
+ case 16:
+ case 24:
+ fg = ((u32 *)(info->pseudo_palette))[image->fg_color];
+ bg = ((u32 *)(info->pseudo_palette))[image->bg_color];
+ break;
+ }
+
+ dst = info->fix.smem_start + (image->dy * info->fix.line_length) +
+ (image->dx * par->depth);
+
+ size = (image->width+7)/8 + 1;
+ size &= ~1;
+ size *= image->height;
+ size += 7;
+ size &= ~7;
+ mono_src_copy_imm_blit(image->width * par->depth,
+ image->height, info->fix.line_length,
+ size/4, par->blit_bpp,
+ PAT_COPY_ROP, dst, (u32 *) image->data,
+ bg, fg, info);
+}
+
+int i810fb_sync(struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+
+ if (!info->var.accel_flags || par->dev_flags & LOCKUP)
+ return 0;
+
+ return wait_for_engine_idle(info);
+}
+
+void i810fb_load_front(u32 offset, struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ if (!info->var.accel_flags || par->dev_flags & LOCKUP)
+ i810_writel(DPLYBASE, mmio, par->fb.physical + offset);
+ else
+ load_front(offset, info);
+}
+
+/**
+ * i810fb_init_ringbuffer - initialize the ringbuffer
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Initializes the ringbuffer by telling the device the
+ * size and location of the ringbuffer. It also sets
+ * the head and tail pointers = 0
+ */
+void i810fb_init_ringbuffer(struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ u32 tmp1, tmp2;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ wait_for_engine_idle(info);
+ i810fb_iring_enable(par, OFF);
+ i810_writel(IRING, mmio, 0);
+ i810_writel(IRING + 4, mmio, 0);
+ par->cur_tail = 0;
+
+ tmp2 = i810_readl(IRING + 8, mmio) & ~RBUFFER_START_MASK;
+ tmp1 = par->iring.physical;
+ i810_writel(IRING + 8, mmio, tmp2 | tmp1);
+
+ tmp1 = i810_readl(IRING + 12, mmio);
+ tmp1 &= ~RBUFFER_SIZE_MASK;
+ tmp2 = (par->iring.size - I810_PAGESIZE) & RBUFFER_SIZE_MASK;
+ i810_writel(IRING + 12, mmio, tmp1 | tmp2);
+ i810fb_iring_enable(par, ON);
+}
diff --git a/drivers/video/fbdev/i810/i810_dvt.c b/drivers/video/fbdev/i810/i810_dvt.c
new file mode 100644
index 000000000..b4b367066
--- /dev/null
+++ b/drivers/video/fbdev/i810/i810_dvt.c
@@ -0,0 +1,312 @@
+/*-*- linux-c -*-
+ * linux/drivers/video/i810_dvt.c -- Intel 810 Discrete Video Timings (Intel)
+ *
+ * Copyright (C) 2001 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 "i810_regs.h"
+#include "i810.h"
+
+struct mode_registers std_modes[] = {
+ /* 640x480 @ 60Hz */
+ { 25000, 0x0013, 0x0003, 0x40, 0x5F, 0x4F, 0x50, 0x82, 0x51, 0x9D,
+ 0x0B, 0x10, 0x40, 0xE9, 0x0B, 0xDF, 0x50, 0xE7, 0x04, 0x02,
+ 0x01, 0x01, 0x01, 0x00, 0x01, 0x22002000, 0x22004000, 0x22006000,
+ 0x22002000, 0x22004000, 0x22006000, 0xC0 },
+
+ /* 640x480 @ 70Hz */
+ { 28000, 0x0053, 0x0010, 0x40, 0x61, 0x4F, 0x4F, 0x85, 0x52, 0x9A,
+ 0xF2, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xF3, 0x01,
+ 0x01, 0x01, 0x01, 0x00, 0x01, 0x22002000, 0x22004000, 0x22005000,
+ 0x22002000, 0x22004000, 0x22005000, 0xC0 },
+
+ /* 640x480 @ 72Hz */
+ { 31000, 0x0013, 0x0002, 0x40, 0x63, 0x4F, 0x4F, 0x87, 0x52, 0x97,
+ 0x06, 0x0F, 0x40, 0xE8, 0x0B, 0xDF, 0x50, 0xDF, 0x07, 0x02,
+ 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22007000,
+ 0x22003000, 0x22005000, 0x22007000, 0xC0 },
+
+ /* 640x480 @ 75Hz */
+ { 31000, 0x0013, 0x0002, 0x40, 0x64, 0x4F, 0x4F, 0x88, 0x51, 0x99,
+ 0xF2, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xF3, 0x01,
+ 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22007000,
+ 0x22003000, 0x22005000, 0x22007000, 0xC0 },
+
+ /* 640x480 @ 85Hz */
+ { 36000, 0x0010, 0x0001, 0x40, 0x63, 0x4F, 0x4F, 0x87, 0x56, 0x9D,
+ 0xFB, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xFC, 0x01,
+ 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22107000,
+ 0x22003000, 0x22005000, 0x22107000, 0xC0 },
+
+ /* 800x600 @ 56Hz */
+ { 36000, 0x0010, 0x0001, 0x40, 0x7B, 0x63, 0x63, 0x9F, 0x66, 0x8F,
+ 0x6F, 0x10, 0x40, 0x58, 0x0A, 0x57, 0xC8, 0x57, 0x70, 0x02,
+ 0x02, 0x02, 0x02, 0x00, 0x01, 0x22003000, 0x22005000, 0x22107000,
+ 0x22003000, 0x22005000, 0x22107000, 0x00 },
+
+ /* 800x600 @ 60Hz */
+ { 40000, 0x0008, 0x0001, 0x30, 0x7F, 0x63, 0x63, 0x83, 0x68, 0x18,
+ 0x72, 0x10, 0x40, 0x58, 0x0C, 0x57, 0xC8, 0x57, 0x73, 0x02,
+ 0x02, 0x02, 0x02, 0x00, 0x00, 0x22003000, 0x22006000, 0x22108000,
+ 0x22003000, 0x22006000, 0x22108000, 0x00 },
+
+ /* 800x600 @ 70Hz */
+ { 45000, 0x0054, 0x0015, 0x30, 0x7D, 0x63, 0x63, 0x81, 0x68, 0x12,
+ 0x6f, 0x10, 0x40, 0x58, 0x0b, 0x57, 0x64, 0x57, 0x70, 0x02,
+ 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210A000,
+ 0x22004000, 0x22007000, 0x2210A000, 0x00 },
+
+ /* 800x600 @ 72Hz */
+ { 50000, 0x0017, 0x0004, 0x30, 0x7D, 0x63, 0x63, 0x81, 0x6A, 0x19,
+ 0x98, 0x10, 0x40, 0x7C, 0x02, 0x57, 0xC8, 0x57, 0x99, 0x02,
+ 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210A000,
+ 0x22004000, 0x22007000, 0x2210A000, 0x00 },
+
+ /* 800x600 @ 75Hz */
+ { 49000, 0x001F, 0x0006, 0x30, 0x7F, 0x63, 0x63, 0x83, 0x65, 0x0F,
+ 0x6F, 0x10, 0x40, 0x58, 0x0B, 0x57, 0xC8, 0x57, 0x70, 0x02,
+ 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210B000,
+ 0x22004000, 0x22007000, 0x2210B000, 0x00 },
+
+ /* 800x600 @ 85Hz */
+ { 56000, 0x0049, 0x000E, 0x30, 0x7E, 0x63, 0x63, 0x82, 0x67, 0x0F,
+ 0x75, 0x10, 0x40, 0x58, 0x0B, 0x57, 0xC8, 0x57, 0x76, 0x02,
+ 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22108000, 0x2210b000,
+ 0x22004000, 0x22108000, 0x2210b000, 0x00 },
+
+ /* 1024x768 @ 60Hz */
+ { 65000, 0x003F, 0x000A, 0x30, 0xA3, 0x7F, 0x7F, 0x87, 0x83, 0x94,
+ 0x24, 0x10, 0x40, 0x02, 0x08, 0xFF, 0x80, 0xFF, 0x25, 0x03,
+ 0x02, 0x03, 0x02, 0x00, 0x00, 0x22005000, 0x22109000, 0x2220D000,
+ 0x22005000, 0x22109000, 0x2220D000, 0xC0 },
+
+ /* 1024x768 @ 70Hz */
+ { 75000, 0x0017, 0x0002, 0x30, 0xA1, 0x7F, 0x7F, 0x85, 0x82, 0x93,
+ 0x24, 0x10, 0x40, 0x02, 0x08, 0xFF, 0x80, 0xFF, 0x25, 0x03,
+ 0x02, 0x03, 0x02, 0x00, 0x00, 0x22005000, 0x2210A000, 0x2220F000,
+ 0x22005000, 0x2210A000, 0x2220F000, 0xC0 },
+
+ /* 1024x768 @ 75Hz */
+ { 78000, 0x0050, 0x0017, 0x20, 0x9F, 0x7F, 0x7F, 0x83, 0x81, 0x8D,
+ 0x1E, 0x10, 0x40, 0x00, 0x03, 0xFF, 0x80, 0xFF, 0x1F, 0x03,
+ 0x02, 0x03, 0x02, 0x00, 0x00, 0x22006000, 0x2210B000, 0x22210000,
+ 0x22006000, 0x2210B000, 0x22210000, 0x00 },
+
+ /* 1024x768 @ 85Hz */
+ { 94000, 0x003D, 0x000E, 0x20, 0xA7, 0x7F, 0x7F, 0x8B, 0x85, 0x91,
+ 0x26, 0x10, 0x40, 0x00, 0x03, 0xFF, 0x80, 0xFF, 0x27, 0x03,
+ 0x02, 0x03, 0x02, 0x00, 0x00, 0x22007000, 0x2220E000, 0x22212000,
+ 0x22007000, 0x2220E000, 0x22212000, 0x00 },
+
+ /* 1152x864 @ 60Hz */
+ { 80000, 0x0008, 0x0001, 0x20, 0xB3, 0x8F, 0x8F, 0x97, 0x93, 0x9f,
+ 0x87, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5f, 0x88, 0x03,
+ 0x03, 0x03, 0x03, 0x00, 0x00, 0x2220C000, 0x22210000, 0x22415000,
+ 0x2220C000, 0x22210000, 0x22415000, 0x00 },
+
+ /* 1152x864 @ 70Hz */
+ { 96000, 0x000a, 0x0001, 0x20, 0xbb, 0x8F, 0x8F, 0x9f, 0x98, 0x87,
+ 0x82, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x83, 0x03,
+ 0x03, 0x03, 0x03, 0x00, 0x00, 0x22107000, 0x22210000, 0x22415000,
+ 0x22107000, 0x22210000, 0x22415000, 0x00 },
+
+ /* 1152x864 @ 72Hz */
+ { 99000, 0x001f, 0x0006, 0x20, 0xbb, 0x8F, 0x8F, 0x9f, 0x98, 0x87,
+ 0x83, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x84, 0x03,
+ 0x03, 0x03, 0x03, 0x00, 0x00, 0x22107000, 0x22210000, 0x22415000,
+ 0x22107000, 0x22210000, 0x22415000, 0x00 },
+
+ /* 1152x864 @ 75Hz */
+ { 108000, 0x0010, 0x0002, 0x20, 0xC3, 0x8F, 0x8F, 0x87, 0x97, 0x07,
+ 0x82, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x83, 0x03,
+ 0x03, 0x03, 0x03, 0x00, 0x01, 0x22107000, 0x22210000, 0x22415000,
+ 0x22107000, 0x22210000, 0x22415000, 0x00 },
+
+ /* 1152x864 @ 85Hz */
+ { 121000, 0x006D, 0x0014, 0x20, 0xc0, 0x8F, 0x8F, 0x84, 0x97, 0x07,
+ 0x93, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x94, 0x03,
+ 0x03, 0x03, 0x03, 0x00, 0x01, 0x2220C000, 0x22210000, 0x22415000,
+ 0x2220C000, 0x22210000, 0x22415000, 0x0 },
+
+ /* 1280x960 @ 60Hz */
+ { 108000, 0x0010, 0x0002, 0x20, 0xDC, 0x9F, 0x9F, 0x80, 0xAB, 0x99,
+ 0xE6, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xE7, 0x03,
+ 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22210000, 0x22415000,
+ 0x2210A000, 0x22210000, 0x22415000, 0x00 },
+
+ /* 1280x960 @ 75Hz */
+ { 129000, 0x0029, 0x0006, 0x20, 0xD3, 0x9F, 0x9F, 0x97, 0xaa, 0x1b,
+ 0xE8, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xE9, 0x03,
+ 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22210000, 0x2241B000,
+ 0x2210A000, 0x22210000, 0x2241B000, 0x00 },
+
+ /* 1280x960 @ 85Hz */
+ { 148000, 0x0042, 0x0009, 0x20, 0xD3, 0x9F, 0x9F, 0x97, 0xA7, 0x1B,
+ 0xF1, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xF2, 0x03,
+ 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22220000, 0x2241D000,
+ 0x2210A000, 0x22220000, 0x2241D000, 0x00 },
+
+ /* 1600x1200 @ 60Hz */
+ { 162000, 0x0019, 0x0006, 0x10, 0x09, 0xC7, 0xC7, 0x8D, 0xcf, 0x07,
+ 0xE0, 0x10, 0x40, 0xB0, 0x03, 0xAF, 0xC8, 0xAF, 0xE1, 0x04,
+ 0x04, 0x04, 0x04, 0x01, 0x00, 0x2210b000, 0x22416000, 0x44419000,
+ 0x2210b000, 0x22416000, 0x44419000, 0x00 },
+
+ /* 1600x1200 @ 65 Hz */
+ { 175000, 0x005d, 0x0018, 0x10, 0x09, 0xC7, 0xC7, 0x8D, 0xcf, 0x07,
+ 0xE0, 0x10, 0x40, 0xB0, 0x03, 0xAF, 0xC8, 0xAF, 0xE1, 0x04,
+ 0x04, 0x04, 0x04, 0x01, 0x00, 0x2210c000, 0x22416000, 0x44419000,
+ 0x2210c000, 0x22416000, 0x44419000, 0x00 },
+
+ /* 1600x1200 @ 70 Hz */
+ { 189000, 0x003D, 0x000e, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07,
+ 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04,
+ 0x04, 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000,
+ 0x2220e000, 0x22416000, 0x44419000, 0x00 },
+
+ /* 1600x1200 @ 72 Hz */
+ { 195000, 0x003f, 0x000e, 0x10, 0x0b, 0xC7, 0xC7, 0x8f, 0xd5, 0x0b,
+ 0xE1, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xe2, 0x04, 0x04,
+ 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000,
+ 0x2220e000, 0x22416000, 0x44419000, 0x00 },
+
+ /* 1600x1200 @ 75 Hz */
+ { 202000, 0x0024, 0x0007, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07,
+ 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04,
+ 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000,
+ 0x2220e000, 0x22416000, 0x44419000, 0x00 },
+
+ /* 1600x1200 @ 85 Hz */
+ { 229000, 0x0029, 0x0007, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07,
+ 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04,
+ 0x04, 0x04, 0x01, 0x00, 0x22210000, 0x22416000, 0x0,
+ 0x22210000, 0x22416000, 0x0, 0x00 },
+};
+
+void round_off_xres(u32 *xres)
+{
+ if (*xres <= 640)
+ *xres = 640;
+ else if (*xres <= 800)
+ *xres = 800;
+ else if (*xres <= 1024)
+ *xres = 1024;
+ else if (*xres <= 1152)
+ *xres = 1152;
+ else if (*xres <= 1280)
+ *xres = 1280;
+ else
+ *xres = 1600;
+}
+
+inline void round_off_yres(u32 *xres, u32 *yres)
+{
+ *yres = (*xres * 3) >> 2;
+}
+
+static int i810fb_find_best_mode(u32 xres, u32 yres, u32 pixclock)
+{
+ u32 diff = 0, diff_best = 0xFFFFFFFF, i = 0, i_best = 0;
+ u8 hfl = (u8) ((xres >> 3) - 1);
+
+ for (i = 0; i < ARRAY_SIZE(std_modes); i++) {
+ if (std_modes[i].cr01 == hfl) {
+ if (std_modes[i].pixclock <= pixclock)
+ diff = pixclock - std_modes[i].pixclock;
+ if (diff < diff_best) {
+ i_best = i;
+ diff_best = diff;
+ }
+ }
+ }
+ return i_best;
+}
+
+void i810fb_encode_registers(const struct fb_var_screeninfo *var,
+ struct i810fb_par *par, u32 xres, u32 yres)
+{
+ u32 i_best = i810fb_find_best_mode(xres, yres, par->regs.pixclock);
+
+ par->regs = std_modes[i_best];
+
+ /* overlay */
+ par->ovract = ((xres + var->right_margin + var->hsync_len +
+ var->left_margin - 32) | ((xres - 32) << 16));
+}
+
+void i810fb_fill_var_timings(struct fb_var_screeninfo *var)
+{
+ u32 total, xres, yres;
+ u32 mode, pixclock;
+
+ xres = var->xres;
+ yres = var->yres;
+
+ pixclock = 1000000000 / var->pixclock;
+ mode = i810fb_find_best_mode(xres, yres, pixclock);
+
+ total = (std_modes[mode].cr00 | (std_modes[mode].cr35 & 1) << 8) + 3;
+ total <<= 3;
+
+ var->pixclock = 1000000000 / std_modes[mode].pixclock;
+ var->right_margin = (std_modes[mode].cr04 << 3) - xres;
+ var->hsync_len = ((std_modes[mode].cr05 & 0x1F) -
+ (std_modes[mode].cr04 & 0x1F)) << 3;
+ var->left_margin = (total - (xres + var->right_margin +
+ var->hsync_len));
+ var->sync = FB_SYNC_ON_GREEN;
+ if (~(std_modes[mode].msr & (1 << 6)))
+ var->sync |= FB_SYNC_HOR_HIGH_ACT;
+ if (~(std_modes[mode].msr & (1 << 7)))
+ var->sync |= FB_SYNC_VERT_HIGH_ACT;
+
+ total = (std_modes[mode].cr06 | (std_modes[mode].cr30 & 0xF) << 8) + 2;
+ var->lower_margin = (std_modes[mode].cr10 |
+ (std_modes[mode].cr32 & 0x0F) << 8) - yres;
+ var->vsync_len = (std_modes[mode].cr11 & 0x0F) -
+ (var->lower_margin & 0x0F);
+ var->upper_margin = total - (yres + var->lower_margin + var->vsync_len);
+}
+
+u32 i810_get_watermark(struct fb_var_screeninfo *var,
+ struct i810fb_par *par)
+{
+ struct mode_registers *params = &par->regs;
+ u32 wmark = 0;
+
+ if (par->mem_freq == 100) {
+ switch (var->bits_per_pixel) {
+ case 8:
+ wmark = params->bpp8_100;
+ break;
+ case 16:
+ wmark = params->bpp16_100;
+ break;
+ case 24:
+ case 32:
+ wmark = params->bpp24_100;
+ }
+ } else {
+ switch (var->bits_per_pixel) {
+ case 8:
+ wmark = params->bpp8_133;
+ break;
+ case 16:
+ wmark = params->bpp16_133;
+ break;
+ case 24:
+ case 32:
+ wmark = params->bpp24_133;
+ }
+ }
+ return wmark;
+}
+
diff --git a/drivers/video/fbdev/i810/i810_gtf.c b/drivers/video/fbdev/i810/i810_gtf.c
new file mode 100644
index 000000000..9743d51e7
--- /dev/null
+++ b/drivers/video/fbdev/i810/i810_gtf.c
@@ -0,0 +1,276 @@
+/*-*- linux-c -*-
+ * linux/drivers/video/i810_main.h -- Intel 810 Non-discrete Video Timings
+ * (VESA GTF)
+ *
+ * Copyright (C) 2001 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 "i810_regs.h"
+#include "i810.h"
+#include "i810_main.h"
+
+/*
+ * FIFO and Watermark tables - based almost wholly on i810_wmark.c in
+ * XFree86 v4.03 by Precision Insight. Slightly modified for integer
+ * operation, instead of float
+ */
+
+struct wm_info {
+ u32 freq;
+ u32 wm;
+};
+
+static struct wm_info i810_wm_8_100[] = {
+ { 15, 0x0070c000 }, { 19, 0x0070c000 }, { 25, 0x22003000 },
+ { 28, 0x22003000 }, { 31, 0x22003000 }, { 36, 0x22007000 },
+ { 40, 0x22007000 }, { 45, 0x22007000 }, { 49, 0x22008000 },
+ { 50, 0x22008000 }, { 56, 0x22008000 }, { 65, 0x22008000 },
+ { 75, 0x22008000 }, { 78, 0x22008000 }, { 80, 0x22008000 },
+ { 94, 0x22008000 }, { 96, 0x22107000 }, { 99, 0x22107000 },
+ { 108, 0x22107000 }, { 121, 0x22107000 }, { 128, 0x22107000 },
+ { 132, 0x22109000 }, { 135, 0x22109000 }, { 157, 0x2210b000 },
+ { 162, 0x2210b000 }, { 175, 0x2210b000 }, { 189, 0x2220e000 },
+ { 195, 0x2220e000 }, { 202, 0x2220e000 }, { 204, 0x2220e000 },
+ { 218, 0x2220f000 }, { 229, 0x22210000 }, { 234, 0x22210000 },
+};
+
+static struct wm_info i810_wm_16_100[] = {
+ { 15, 0x0070c000 }, { 19, 0x0020c000 }, { 25, 0x22006000 },
+ { 28, 0x22006000 }, { 31, 0x22007000 }, { 36, 0x22007000 },
+ { 40, 0x22007000 }, { 45, 0x22007000 }, { 49, 0x22009000 },
+ { 50, 0x22009000 }, { 56, 0x22108000 }, { 65, 0x2210e000 },
+ { 75, 0x2210e000 }, { 78, 0x2210e000 }, { 80, 0x22210000 },
+ { 94, 0x22210000 }, { 96, 0x22210000 }, { 99, 0x22210000 },
+ { 108, 0x22210000 }, { 121, 0x22210000 }, { 128, 0x22210000 },
+ { 132, 0x22314000 }, { 135, 0x22314000 }, { 157, 0x22415000 },
+ { 162, 0x22416000 }, { 175, 0x22416000 }, { 189, 0x22416000 },
+ { 195, 0x22416000 }, { 202, 0x22416000 }, { 204, 0x22416000 },
+ { 218, 0x22416000 }, { 229, 0x22416000 },
+};
+
+static struct wm_info i810_wm_24_100[] = {
+ { 15, 0x0020c000 }, { 19, 0x0040c000 }, { 25, 0x22009000 },
+ { 28, 0x22009000 }, { 31, 0x2200a000 }, { 36, 0x2210c000 },
+ { 40, 0x2210c000 }, { 45, 0x2210c000 }, { 49, 0x22111000 },
+ { 50, 0x22111000 }, { 56, 0x22111000 }, { 65, 0x22214000 },
+ { 75, 0x22214000 }, { 78, 0x22215000 }, { 80, 0x22216000 },
+ { 94, 0x22218000 }, { 96, 0x22418000 }, { 99, 0x22418000 },
+ { 108, 0x22418000 }, { 121, 0x22418000 }, { 128, 0x22419000 },
+ { 132, 0x22519000 }, { 135, 0x4441d000 }, { 157, 0x44419000 },
+ { 162, 0x44419000 }, { 175, 0x44419000 }, { 189, 0x44419000 },
+ { 195, 0x44419000 }, { 202, 0x44419000 }, { 204, 0x44419000 },
+};
+
+static struct wm_info i810_wm_8_133[] = {
+ { 15, 0x0070c000 }, { 19, 0x0070c000 }, { 25, 0x22003000 },
+ { 28, 0x22003000 }, { 31, 0x22003000 }, { 36, 0x22007000 },
+ { 40, 0x22007000 }, { 45, 0x22007000 }, { 49, 0x22008000 },
+ { 50, 0x22008000 }, { 56, 0x22008000 }, { 65, 0x22008000 },
+ { 75, 0x22008000 }, { 78, 0x22008000 }, { 80, 0x22008000 },
+ { 94, 0x22008000 }, { 96, 0x22107000 }, { 99, 0x22107000 },
+ { 108, 0x22107000 }, { 121, 0x22107000 }, { 128, 0x22107000 },
+ { 132, 0x22109000 }, { 135, 0x22109000 }, { 157, 0x2210b000 },
+ { 162, 0x2210b000 }, { 175, 0x2210b000 }, { 189, 0x2220e000 },
+ { 195, 0x2220e000 }, { 202, 0x2220e000 }, { 204, 0x2220e000 },
+ { 218, 0x2220f000 }, { 229, 0x22210000 }, { 234, 0x22210000 },
+};
+
+static struct wm_info i810_wm_16_133[] = {
+ { 15, 0x0020c000 }, { 19, 0x0020c000 }, { 25, 0x22006000 },
+ { 28, 0x22006000 }, { 31, 0x22007000 }, { 36, 0x22007000 },
+ { 40, 0x22007000 }, { 45, 0x22007000 }, { 49, 0x22009000 },
+ { 50, 0x22009000 }, { 56, 0x22108000 }, { 65, 0x2210e000 },
+ { 75, 0x2210e000 }, { 78, 0x2210e000 }, { 80, 0x22210000 },
+ { 94, 0x22210000 }, { 96, 0x22210000 }, { 99, 0x22210000 },
+ { 108, 0x22210000 }, { 121, 0x22210000 }, { 128, 0x22210000 },
+ { 132, 0x22314000 }, { 135, 0x22314000 }, { 157, 0x22415000 },
+ { 162, 0x22416000 }, { 175, 0x22416000 }, { 189, 0x22416000 },
+ { 195, 0x22416000 }, { 202, 0x22416000 }, { 204, 0x22416000 },
+ { 218, 0x22416000 }, { 229, 0x22416000 },
+};
+
+static struct wm_info i810_wm_24_133[] = {
+ { 15, 0x0020c000 }, { 19, 0x00408000 }, { 25, 0x22009000 },
+ { 28, 0x22009000 }, { 31, 0x2200a000 }, { 36, 0x2210c000 },
+ { 40, 0x2210c000 }, { 45, 0x2210c000 }, { 49, 0x22111000 },
+ { 50, 0x22111000 }, { 56, 0x22111000 }, { 65, 0x22214000 },
+ { 75, 0x22214000 }, { 78, 0x22215000 }, { 80, 0x22216000 },
+ { 94, 0x22218000 }, { 96, 0x22418000 }, { 99, 0x22418000 },
+ { 108, 0x22418000 }, { 121, 0x22418000 }, { 128, 0x22419000 },
+ { 132, 0x22519000 }, { 135, 0x4441d000 }, { 157, 0x44419000 },
+ { 162, 0x44419000 }, { 175, 0x44419000 }, { 189, 0x44419000 },
+ { 195, 0x44419000 }, { 202, 0x44419000 }, { 204, 0x44419000 },
+};
+
+void round_off_xres(u32 *xres) { }
+void round_off_yres(u32 *xres, u32 *yres) { }
+
+/**
+ * i810fb_encode_registers - encode @var to hardware register values
+ * @var: pointer to var structure
+ * @par: pointer to hardware par structure
+ *
+ * DESCRIPTION:
+ * Timing values in @var will be converted to appropriate
+ * register values of @par.
+ */
+void i810fb_encode_registers(const struct fb_var_screeninfo *var,
+ struct i810fb_par *par, u32 xres, u32 yres)
+{
+ int n, blank_s, blank_e;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+ u8 msr = 0;
+
+ /* Horizontal */
+ /* htotal */
+ n = ((xres + var->right_margin + var->hsync_len +
+ var->left_margin) >> 3) - 5;
+ par->regs.cr00 = (u8) n;
+ par->regs.cr35 = (u8) ((n >> 8) & 1);
+
+ /* xres */
+ par->regs.cr01 = (u8) ((xres >> 3) - 1);
+
+ /* hblank */
+ blank_e = (xres + var->right_margin + var->hsync_len +
+ var->left_margin) >> 3;
+ blank_e--;
+ blank_s = blank_e - 127;
+ if (blank_s < (xres >> 3))
+ blank_s = xres >> 3;
+ par->regs.cr02 = (u8) blank_s;
+ par->regs.cr03 = (u8) (blank_e & 0x1F);
+ par->regs.cr05 = (u8) ((blank_e & (1 << 5)) << 2);
+ par->regs.cr39 = (u8) ((blank_e >> 6) & 1);
+
+ /* hsync */
+ par->regs.cr04 = (u8) ((xres + var->right_margin) >> 3);
+ par->regs.cr05 |= (u8) (((xres + var->right_margin +
+ var->hsync_len) >> 3) & 0x1F);
+
+ /* Vertical */
+ /* vtotal */
+ n = yres + var->lower_margin + var->vsync_len + var->upper_margin - 2;
+ par->regs.cr06 = (u8) (n & 0xFF);
+ par->regs.cr30 = (u8) ((n >> 8) & 0x0F);
+
+ /* vsync */
+ n = yres + var->lower_margin;
+ par->regs.cr10 = (u8) (n & 0xFF);
+ par->regs.cr32 = (u8) ((n >> 8) & 0x0F);
+ par->regs.cr11 = i810_readb(CR11, mmio) & ~0x0F;
+ par->regs.cr11 |= (u8) ((yres + var->lower_margin +
+ var->vsync_len) & 0x0F);
+
+ /* yres */
+ n = yres - 1;
+ par->regs.cr12 = (u8) (n & 0xFF);
+ par->regs.cr31 = (u8) ((n >> 8) & 0x0F);
+
+ /* vblank */
+ blank_e = yres + var->lower_margin + var->vsync_len +
+ var->upper_margin;
+ blank_e--;
+ blank_s = blank_e - 127;
+ if (blank_s < yres)
+ blank_s = yres;
+ par->regs.cr15 = (u8) (blank_s & 0xFF);
+ par->regs.cr33 = (u8) ((blank_s >> 8) & 0x0F);
+ par->regs.cr16 = (u8) (blank_e & 0xFF);
+ par->regs.cr09 = 0;
+
+ /* sync polarity */
+ if (!(var->sync & FB_SYNC_HOR_HIGH_ACT))
+ msr |= 1 << 6;
+ if (!(var->sync & FB_SYNC_VERT_HIGH_ACT))
+ msr |= 1 << 7;
+ par->regs.msr = msr;
+
+ /* interlace */
+ if (var->vmode & FB_VMODE_INTERLACED)
+ par->interlace = (1 << 7) | ((u8) (var->yres >> 4));
+ else
+ par->interlace = 0;
+
+ if (var->vmode & FB_VMODE_DOUBLE)
+ par->regs.cr09 |= 1 << 7;
+
+ /* overlay */
+ par->ovract = ((var->xres + var->right_margin + var->hsync_len +
+ var->left_margin - 32) | ((var->xres - 32) << 16));
+}
+
+void i810fb_fill_var_timings(struct fb_var_screeninfo *var) { }
+
+/**
+ * i810_get_watermark - gets watermark
+ * @var: pointer to fb_var_screeninfo
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Gets the required watermark based on
+ * pixelclock and RAMBUS frequency.
+ *
+ * RETURNS:
+ * watermark
+ */
+u32 i810_get_watermark(const struct fb_var_screeninfo *var,
+ struct i810fb_par *par)
+{
+ struct wm_info *wmark = NULL;
+ u32 i, size = 0, pixclock, wm_best = 0, min, diff;
+
+ if (par->mem_freq == 100) {
+ switch (var->bits_per_pixel) {
+ case 8:
+ wmark = i810_wm_8_100;
+ size = ARRAY_SIZE(i810_wm_8_100);
+ break;
+ case 16:
+ wmark = i810_wm_16_100;
+ size = ARRAY_SIZE(i810_wm_16_100);
+ break;
+ case 24:
+ case 32:
+ wmark = i810_wm_24_100;
+ size = ARRAY_SIZE(i810_wm_24_100);
+ }
+ } else {
+ switch(var->bits_per_pixel) {
+ case 8:
+ wmark = i810_wm_8_133;
+ size = ARRAY_SIZE(i810_wm_8_133);
+ break;
+ case 16:
+ wmark = i810_wm_16_133;
+ size = ARRAY_SIZE(i810_wm_16_133);
+ break;
+ case 24:
+ case 32:
+ wmark = i810_wm_24_133;
+ size = ARRAY_SIZE(i810_wm_24_133);
+ }
+ }
+
+ pixclock = 1000000/var->pixclock;
+ min = ~0;
+ for (i = 0; i < size; i++) {
+ if (pixclock <= wmark[i].freq)
+ diff = wmark[i].freq - pixclock;
+ else
+ diff = pixclock - wmark[i].freq;
+ if (diff < min) {
+ wm_best = wmark[i].wm;
+ min = diff;
+ }
+ }
+ return wm_best;
+}
+
diff --git a/drivers/video/fbdev/i810/i810_main.c b/drivers/video/fbdev/i810/i810_main.c
new file mode 100644
index 000000000..ff09f8c20
--- /dev/null
+++ b/drivers/video/fbdev/i810/i810_main.c
@@ -0,0 +1,2226 @@
+ /*-*- linux-c -*-
+ * linux/drivers/video/i810_main.c -- Intel 810 frame buffer device
+ *
+ * Copyright (C) 2001 Antonino Daplas<adaplas@pol.net>
+ * All Rights Reserved
+ *
+ * Contributors:
+ * Michael Vogt <mvogt@acm.org> - added support for Intel 815 chipsets
+ * and enabling the power-on state of
+ * external VGA connectors for
+ * secondary displays
+ *
+ * Fredrik Andersson <krueger@shell.linux.se> - alpha testing of
+ * the VESA GTF
+ *
+ * Brad Corrion <bcorrion@web-co.com> - alpha testing of customized
+ * timings support
+ *
+ * The code framework is a modification of vfb.c by Geert Uytterhoeven.
+ * DotClock and PLL calculations are partly based on i810_driver.c
+ * in xfree86 v4.0.3 by Precision Insight.
+ * Watermark calculation and tables are based on i810_wmark.c
+ * in xfre86 v4.0.3 by Precision Insight. Slight modifications
+ * only to allow for integer operations instead of floating point.
+ *
+ * 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/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/fb.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/resource.h>
+#include <linux/unistd.h>
+#include <linux/console.h>
+#include <linux/io.h>
+
+#include <asm/io.h>
+#include <asm/div64.h>
+#include <asm/page.h>
+
+#include "i810_regs.h"
+#include "i810.h"
+#include "i810_main.h"
+
+/*
+ * voffset - framebuffer offset in MiB from aperture start address. In order for
+ * the driver to work with X, we must try to use memory holes left untouched by X. The
+ * following table lists where X's different surfaces start at.
+ *
+ * ---------------------------------------------
+ * : : 64 MiB : 32 MiB :
+ * ----------------------------------------------
+ * : FrontBuffer : 0 : 0 :
+ * : DepthBuffer : 48 : 16 :
+ * : BackBuffer : 56 : 24 :
+ * ----------------------------------------------
+ *
+ * So for chipsets with 64 MiB Aperture sizes, 32 MiB for v_offset is okay, allowing up to
+ * 15 + 1 MiB of Framebuffer memory. For 32 MiB Aperture sizes, a v_offset of 8 MiB should
+ * work, allowing 7 + 1 MiB of Framebuffer memory.
+ * Note, the size of the hole may change depending on how much memory you allocate to X,
+ * and how the memory is split up between these surfaces.
+ *
+ * Note: Anytime the DepthBuffer or FrontBuffer is overlapped, X would still run but with
+ * DRI disabled. But if the Frontbuffer is overlapped, X will fail to load.
+ *
+ * Experiment with v_offset to find out which works best for you.
+ */
+static u32 v_offset_default; /* For 32 MiB Aper size, 8 should be the default */
+static u32 voffset;
+
+static int i810fb_cursor(struct fb_info *info, struct fb_cursor *cursor);
+static int i810fb_init_pci(struct pci_dev *dev,
+ const struct pci_device_id *entry);
+static void i810fb_remove_pci(struct pci_dev *dev);
+static int i810fb_resume(struct pci_dev *dev);
+static int i810fb_suspend(struct pci_dev *dev, pm_message_t state);
+
+/* Chipset Specific Functions */
+static int i810fb_set_par (struct fb_info *info);
+static int i810fb_getcolreg (u8 regno, u8 *red, u8 *green, u8 *blue,
+ u8 *transp, struct fb_info *info);
+static int i810fb_setcolreg (unsigned regno, unsigned red, unsigned green, unsigned blue,
+ unsigned transp, struct fb_info *info);
+static int i810fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info);
+static int i810fb_blank (int blank_mode, struct fb_info *info);
+
+/* Initialization */
+static void i810fb_release_resource (struct fb_info *info, struct i810fb_par *par);
+
+/* PCI */
+static const char * const i810_pci_list[] = {
+ "Intel(R) 810 Framebuffer Device" ,
+ "Intel(R) 810-DC100 Framebuffer Device" ,
+ "Intel(R) 810E Framebuffer Device" ,
+ "Intel(R) 815 (Internal Graphics 100Mhz FSB) Framebuffer Device" ,
+ "Intel(R) 815 (Internal Graphics only) Framebuffer Device" ,
+ "Intel(R) 815 (Internal Graphics with AGP) Framebuffer Device"
+};
+
+static const struct pci_device_id i810fb_pci_tbl[] = {
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG1,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810E_IG,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
+ /* mvo: added i815 PCI-ID */
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_100,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_NOAGP,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
+ { 0 },
+};
+
+static struct pci_driver i810fb_driver = {
+ .name = "i810fb",
+ .id_table = i810fb_pci_tbl,
+ .probe = i810fb_init_pci,
+ .remove = i810fb_remove_pci,
+ .suspend = i810fb_suspend,
+ .resume = i810fb_resume,
+};
+
+static char *mode_option = NULL;
+static int vram = 4;
+static int bpp = 8;
+static bool mtrr;
+static bool accel;
+static int hsync1;
+static int hsync2;
+static int vsync1;
+static int vsync2;
+static int xres;
+static int yres;
+static int vyres;
+static bool sync;
+static bool extvga;
+static bool dcolor;
+static bool ddc3;
+
+/*------------------------------------------------------------*/
+
+/**************************************************************
+ * Hardware Low Level Routines *
+ **************************************************************/
+
+/**
+ * i810_screen_off - turns off/on display
+ * @mmio: address of register space
+ * @mode: on or off
+ *
+ * DESCRIPTION:
+ * Blanks/unblanks the display
+ */
+static void i810_screen_off(u8 __iomem *mmio, u8 mode)
+{
+ u32 count = WAIT_COUNT;
+ u8 val;
+
+ i810_writeb(SR_INDEX, mmio, SR01);
+ val = i810_readb(SR_DATA, mmio);
+ val = (mode == OFF) ? val | SCR_OFF :
+ val & ~SCR_OFF;
+
+ while((i810_readw(DISP_SL, mmio) & 0xFFF) && count--);
+ i810_writeb(SR_INDEX, mmio, SR01);
+ i810_writeb(SR_DATA, mmio, val);
+}
+
+/**
+ * i810_dram_off - turns off/on dram refresh
+ * @mmio: address of register space
+ * @mode: on or off
+ *
+ * DESCRIPTION:
+ * Turns off DRAM refresh. Must be off for only 2 vsyncs
+ * before data becomes corrupt
+ */
+static void i810_dram_off(u8 __iomem *mmio, u8 mode)
+{
+ u8 val;
+
+ val = i810_readb(DRAMCH, mmio);
+ val &= DRAM_OFF;
+ val = (mode == OFF) ? val : val | DRAM_ON;
+ i810_writeb(DRAMCH, mmio, val);
+}
+
+/**
+ * i810_protect_regs - allows rw/ro mode of certain VGA registers
+ * @mmio: address of register space
+ * @mode: protect/unprotect
+ *
+ * DESCRIPTION:
+ * The IBM VGA standard allows protection of certain VGA registers.
+ * This will protect or unprotect them.
+ */
+static void i810_protect_regs(u8 __iomem *mmio, int mode)
+{
+ u8 reg;
+
+ i810_writeb(CR_INDEX_CGA, mmio, CR11);
+ reg = i810_readb(CR_DATA_CGA, mmio);
+ reg = (mode == OFF) ? reg & ~0x80 :
+ reg | 0x80;
+
+ i810_writeb(CR_INDEX_CGA, mmio, CR11);
+ i810_writeb(CR_DATA_CGA, mmio, reg);
+}
+
+/**
+ * i810_load_pll - loads values for the hardware PLL clock
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Loads the P, M, and N registers.
+ */
+static void i810_load_pll(struct i810fb_par *par)
+{
+ u32 tmp1, tmp2;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ tmp1 = par->regs.M | par->regs.N << 16;
+ tmp2 = i810_readl(DCLK_2D, mmio);
+ tmp2 &= ~MN_MASK;
+ i810_writel(DCLK_2D, mmio, tmp1 | tmp2);
+
+ tmp1 = par->regs.P;
+ tmp2 = i810_readl(DCLK_0DS, mmio);
+ tmp2 &= ~(P_OR << 16);
+ i810_writel(DCLK_0DS, mmio, (tmp1 << 16) | tmp2);
+
+ i810_writeb(MSR_WRITE, mmio, par->regs.msr | 0xC8 | 1);
+
+}
+
+/**
+ * i810_load_vga - load standard VGA registers
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Load values to VGA registers
+ */
+static void i810_load_vga(struct i810fb_par *par)
+{
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ /* interlace */
+ i810_writeb(CR_INDEX_CGA, mmio, CR70);
+ i810_writeb(CR_DATA_CGA, mmio, par->interlace);
+
+ i810_writeb(CR_INDEX_CGA, mmio, CR00);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr00);
+ i810_writeb(CR_INDEX_CGA, mmio, CR01);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr01);
+ i810_writeb(CR_INDEX_CGA, mmio, CR02);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr02);
+ i810_writeb(CR_INDEX_CGA, mmio, CR03);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr03);
+ i810_writeb(CR_INDEX_CGA, mmio, CR04);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr04);
+ i810_writeb(CR_INDEX_CGA, mmio, CR05);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr05);
+ i810_writeb(CR_INDEX_CGA, mmio, CR06);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr06);
+ i810_writeb(CR_INDEX_CGA, mmio, CR09);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr09);
+ i810_writeb(CR_INDEX_CGA, mmio, CR10);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr10);
+ i810_writeb(CR_INDEX_CGA, mmio, CR11);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr11);
+ i810_writeb(CR_INDEX_CGA, mmio, CR12);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr12);
+ i810_writeb(CR_INDEX_CGA, mmio, CR15);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr15);
+ i810_writeb(CR_INDEX_CGA, mmio, CR16);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr16);
+}
+
+/**
+ * i810_load_vgax - load extended VGA registers
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Load values to extended VGA registers
+ */
+static void i810_load_vgax(struct i810fb_par *par)
+{
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_writeb(CR_INDEX_CGA, mmio, CR30);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr30);
+ i810_writeb(CR_INDEX_CGA, mmio, CR31);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr31);
+ i810_writeb(CR_INDEX_CGA, mmio, CR32);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr32);
+ i810_writeb(CR_INDEX_CGA, mmio, CR33);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr33);
+ i810_writeb(CR_INDEX_CGA, mmio, CR35);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr35);
+ i810_writeb(CR_INDEX_CGA, mmio, CR39);
+ i810_writeb(CR_DATA_CGA, mmio, par->regs.cr39);
+}
+
+/**
+ * i810_load_2d - load grahics registers
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Load values to graphics registers
+ */
+static void i810_load_2d(struct i810fb_par *par)
+{
+ u32 tmp;
+ u8 tmp8;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_writel(FW_BLC, mmio, par->watermark);
+ tmp = i810_readl(PIXCONF, mmio);
+ tmp |= 1 | 1 << 20;
+ i810_writel(PIXCONF, mmio, tmp);
+
+ i810_writel(OVRACT, mmio, par->ovract);
+
+ i810_writeb(GR_INDEX, mmio, GR10);
+ tmp8 = i810_readb(GR_DATA, mmio);
+ tmp8 |= 2;
+ i810_writeb(GR_INDEX, mmio, GR10);
+ i810_writeb(GR_DATA, mmio, tmp8);
+}
+
+/**
+ * i810_hires - enables high resolution mode
+ * @mmio: address of register space
+ */
+static void i810_hires(u8 __iomem *mmio)
+{
+ u8 val;
+
+ i810_writeb(CR_INDEX_CGA, mmio, CR80);
+ val = i810_readb(CR_DATA_CGA, mmio);
+ i810_writeb(CR_INDEX_CGA, mmio, CR80);
+ i810_writeb(CR_DATA_CGA, mmio, val | 1);
+ /* Stop LCD displays from flickering */
+ i810_writel(MEM_MODE, mmio, i810_readl(MEM_MODE, mmio) | 4);
+}
+
+/**
+ * i810_load_pitch - loads the characters per line of the display
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Loads the characters per line
+ */
+static void i810_load_pitch(struct i810fb_par *par)
+{
+ u32 tmp, pitch;
+ u8 val;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ pitch = par->pitch >> 3;
+ i810_writeb(SR_INDEX, mmio, SR01);
+ val = i810_readb(SR_DATA, mmio);
+ val &= 0xE0;
+ val |= 1 | 1 << 2;
+ i810_writeb(SR_INDEX, mmio, SR01);
+ i810_writeb(SR_DATA, mmio, val);
+
+ tmp = pitch & 0xFF;
+ i810_writeb(CR_INDEX_CGA, mmio, CR13);
+ i810_writeb(CR_DATA_CGA, mmio, (u8) tmp);
+
+ tmp = pitch >> 8;
+ i810_writeb(CR_INDEX_CGA, mmio, CR41);
+ val = i810_readb(CR_DATA_CGA, mmio) & ~0x0F;
+ i810_writeb(CR_INDEX_CGA, mmio, CR41);
+ i810_writeb(CR_DATA_CGA, mmio, (u8) tmp | val);
+}
+
+/**
+ * i810_load_color - loads the color depth of the display
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Loads the color depth of the display and the graphics engine
+ */
+static void i810_load_color(struct i810fb_par *par)
+{
+ u8 __iomem *mmio = par->mmio_start_virtual;
+ u32 reg1;
+ u16 reg2;
+
+ reg1 = i810_readl(PIXCONF, mmio) & ~(0xF0000 | 1 << 27);
+ reg2 = i810_readw(BLTCNTL, mmio) & ~0x30;
+
+ reg1 |= 0x8000 | par->pixconf;
+ reg2 |= par->bltcntl;
+ i810_writel(PIXCONF, mmio, reg1);
+ i810_writew(BLTCNTL, mmio, reg2);
+}
+
+/**
+ * i810_load_regs - loads all registers for the mode
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Loads registers
+ */
+static void i810_load_regs(struct i810fb_par *par)
+{
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_screen_off(mmio, OFF);
+ i810_protect_regs(mmio, OFF);
+ i810_dram_off(mmio, OFF);
+ i810_load_pll(par);
+ i810_load_vga(par);
+ i810_load_vgax(par);
+ i810_dram_off(mmio, ON);
+ i810_load_2d(par);
+ i810_hires(mmio);
+ i810_screen_off(mmio, ON);
+ i810_protect_regs(mmio, ON);
+ i810_load_color(par);
+ i810_load_pitch(par);
+}
+
+static void i810_write_dac(u8 regno, u8 red, u8 green, u8 blue,
+ u8 __iomem *mmio)
+{
+ i810_writeb(CLUT_INDEX_WRITE, mmio, regno);
+ i810_writeb(CLUT_DATA, mmio, red);
+ i810_writeb(CLUT_DATA, mmio, green);
+ i810_writeb(CLUT_DATA, mmio, blue);
+}
+
+static void i810_read_dac(u8 regno, u8 *red, u8 *green, u8 *blue,
+ u8 __iomem *mmio)
+{
+ i810_writeb(CLUT_INDEX_READ, mmio, regno);
+ *red = i810_readb(CLUT_DATA, mmio);
+ *green = i810_readb(CLUT_DATA, mmio);
+ *blue = i810_readb(CLUT_DATA, mmio);
+}
+
+/************************************************************
+ * VGA State Restore *
+ ************************************************************/
+static void i810_restore_pll(struct i810fb_par *par)
+{
+ u32 tmp1, tmp2;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ tmp1 = par->hw_state.dclk_2d;
+ tmp2 = i810_readl(DCLK_2D, mmio);
+ tmp1 &= ~MN_MASK;
+ tmp2 &= MN_MASK;
+ i810_writel(DCLK_2D, mmio, tmp1 | tmp2);
+
+ tmp1 = par->hw_state.dclk_1d;
+ tmp2 = i810_readl(DCLK_1D, mmio);
+ tmp1 &= ~MN_MASK;
+ tmp2 &= MN_MASK;
+ i810_writel(DCLK_1D, mmio, tmp1 | tmp2);
+
+ i810_writel(DCLK_0DS, mmio, par->hw_state.dclk_0ds);
+}
+
+static void i810_restore_dac(struct i810fb_par *par)
+{
+ u32 tmp1, tmp2;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ tmp1 = par->hw_state.pixconf;
+ tmp2 = i810_readl(PIXCONF, mmio);
+ tmp1 &= DAC_BIT;
+ tmp2 &= ~DAC_BIT;
+ i810_writel(PIXCONF, mmio, tmp1 | tmp2);
+}
+
+static void i810_restore_vgax(struct i810fb_par *par)
+{
+ u8 i, j;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ for (i = 0; i < 4; i++) {
+ i810_writeb(CR_INDEX_CGA, mmio, CR30+i);
+ i810_writeb(CR_DATA_CGA, mmio, *(&(par->hw_state.cr30) + i));
+ }
+ i810_writeb(CR_INDEX_CGA, mmio, CR35);
+ i810_writeb(CR_DATA_CGA, mmio, par->hw_state.cr35);
+ i810_writeb(CR_INDEX_CGA, mmio, CR39);
+ i810_writeb(CR_DATA_CGA, mmio, par->hw_state.cr39);
+ i810_writeb(CR_INDEX_CGA, mmio, CR41);
+ i810_writeb(CR_DATA_CGA, mmio, par->hw_state.cr39);
+
+ /*restore interlace*/
+ i810_writeb(CR_INDEX_CGA, mmio, CR70);
+ i = par->hw_state.cr70;
+ i &= INTERLACE_BIT;
+ j = i810_readb(CR_DATA_CGA, mmio);
+ i810_writeb(CR_INDEX_CGA, mmio, CR70);
+ i810_writeb(CR_DATA_CGA, mmio, j | i);
+
+ i810_writeb(CR_INDEX_CGA, mmio, CR80);
+ i810_writeb(CR_DATA_CGA, mmio, par->hw_state.cr80);
+ i810_writeb(MSR_WRITE, mmio, par->hw_state.msr);
+ i810_writeb(SR_INDEX, mmio, SR01);
+ i = (par->hw_state.sr01) & ~0xE0 ;
+ j = i810_readb(SR_DATA, mmio) & 0xE0;
+ i810_writeb(SR_INDEX, mmio, SR01);
+ i810_writeb(SR_DATA, mmio, i | j);
+}
+
+static void i810_restore_vga(struct i810fb_par *par)
+{
+ u8 i;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ for (i = 0; i < 10; i++) {
+ i810_writeb(CR_INDEX_CGA, mmio, CR00 + i);
+ i810_writeb(CR_DATA_CGA, mmio, *((&par->hw_state.cr00) + i));
+ }
+ for (i = 0; i < 8; i++) {
+ i810_writeb(CR_INDEX_CGA, mmio, CR10 + i);
+ i810_writeb(CR_DATA_CGA, mmio, *((&par->hw_state.cr10) + i));
+ }
+}
+
+static void i810_restore_addr_map(struct i810fb_par *par)
+{
+ u8 tmp;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_writeb(GR_INDEX, mmio, GR10);
+ tmp = i810_readb(GR_DATA, mmio);
+ tmp &= ADDR_MAP_MASK;
+ tmp |= par->hw_state.gr10;
+ i810_writeb(GR_INDEX, mmio, GR10);
+ i810_writeb(GR_DATA, mmio, tmp);
+}
+
+static void i810_restore_2d(struct i810fb_par *par)
+{
+ u32 tmp_long;
+ u16 tmp_word;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ tmp_word = i810_readw(BLTCNTL, mmio);
+ tmp_word &= ~(3 << 4);
+ tmp_word |= par->hw_state.bltcntl;
+ i810_writew(BLTCNTL, mmio, tmp_word);
+
+ i810_dram_off(mmio, OFF);
+ i810_writel(PIXCONF, mmio, par->hw_state.pixconf);
+ i810_dram_off(mmio, ON);
+
+ tmp_word = i810_readw(HWSTAM, mmio);
+ tmp_word &= 3 << 13;
+ tmp_word |= par->hw_state.hwstam;
+ i810_writew(HWSTAM, mmio, tmp_word);
+
+ tmp_long = i810_readl(FW_BLC, mmio);
+ tmp_long &= FW_BLC_MASK;
+ tmp_long |= par->hw_state.fw_blc;
+ i810_writel(FW_BLC, mmio, tmp_long);
+
+ i810_writel(HWS_PGA, mmio, par->hw_state.hws_pga);
+ i810_writew(IER, mmio, par->hw_state.ier);
+ i810_writew(IMR, mmio, par->hw_state.imr);
+ i810_writel(DPLYSTAS, mmio, par->hw_state.dplystas);
+}
+
+static void i810_restore_vga_state(struct i810fb_par *par)
+{
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_screen_off(mmio, OFF);
+ i810_protect_regs(mmio, OFF);
+ i810_dram_off(mmio, OFF);
+ i810_restore_pll(par);
+ i810_restore_dac(par);
+ i810_restore_vga(par);
+ i810_restore_vgax(par);
+ i810_restore_addr_map(par);
+ i810_dram_off(mmio, ON);
+ i810_restore_2d(par);
+ i810_screen_off(mmio, ON);
+ i810_protect_regs(mmio, ON);
+}
+
+/***********************************************************************
+ * VGA State Save *
+ ***********************************************************************/
+
+static void i810_save_vgax(struct i810fb_par *par)
+{
+ u8 i;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ for (i = 0; i < 4; i++) {
+ i810_writeb(CR_INDEX_CGA, mmio, CR30 + i);
+ *(&(par->hw_state.cr30) + i) = i810_readb(CR_DATA_CGA, mmio);
+ }
+ i810_writeb(CR_INDEX_CGA, mmio, CR35);
+ par->hw_state.cr35 = i810_readb(CR_DATA_CGA, mmio);
+ i810_writeb(CR_INDEX_CGA, mmio, CR39);
+ par->hw_state.cr39 = i810_readb(CR_DATA_CGA, mmio);
+ i810_writeb(CR_INDEX_CGA, mmio, CR41);
+ par->hw_state.cr41 = i810_readb(CR_DATA_CGA, mmio);
+ i810_writeb(CR_INDEX_CGA, mmio, CR70);
+ par->hw_state.cr70 = i810_readb(CR_DATA_CGA, mmio);
+ par->hw_state.msr = i810_readb(MSR_READ, mmio);
+ i810_writeb(CR_INDEX_CGA, mmio, CR80);
+ par->hw_state.cr80 = i810_readb(CR_DATA_CGA, mmio);
+ i810_writeb(SR_INDEX, mmio, SR01);
+ par->hw_state.sr01 = i810_readb(SR_DATA, mmio);
+}
+
+static void i810_save_vga(struct i810fb_par *par)
+{
+ u8 i;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ for (i = 0; i < 10; i++) {
+ i810_writeb(CR_INDEX_CGA, mmio, CR00 + i);
+ *((&par->hw_state.cr00) + i) = i810_readb(CR_DATA_CGA, mmio);
+ }
+ for (i = 0; i < 8; i++) {
+ i810_writeb(CR_INDEX_CGA, mmio, CR10 + i);
+ *((&par->hw_state.cr10) + i) = i810_readb(CR_DATA_CGA, mmio);
+ }
+}
+
+static void i810_save_2d(struct i810fb_par *par)
+{
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ par->hw_state.dclk_2d = i810_readl(DCLK_2D, mmio);
+ par->hw_state.dclk_1d = i810_readl(DCLK_1D, mmio);
+ par->hw_state.dclk_0ds = i810_readl(DCLK_0DS, mmio);
+ par->hw_state.pixconf = i810_readl(PIXCONF, mmio);
+ par->hw_state.fw_blc = i810_readl(FW_BLC, mmio);
+ par->hw_state.bltcntl = i810_readw(BLTCNTL, mmio);
+ par->hw_state.hwstam = i810_readw(HWSTAM, mmio);
+ par->hw_state.hws_pga = i810_readl(HWS_PGA, mmio);
+ par->hw_state.ier = i810_readw(IER, mmio);
+ par->hw_state.imr = i810_readw(IMR, mmio);
+ par->hw_state.dplystas = i810_readl(DPLYSTAS, mmio);
+}
+
+static void i810_save_vga_state(struct i810fb_par *par)
+{
+ i810_save_vga(par);
+ i810_save_vgax(par);
+ i810_save_2d(par);
+}
+
+/************************************************************
+ * Helpers *
+ ************************************************************/
+/**
+ * get_line_length - calculates buffer pitch in bytes
+ * @par: pointer to i810fb_par structure
+ * @xres_virtual: virtual resolution of the frame
+ * @bpp: bits per pixel
+ *
+ * DESCRIPTION:
+ * Calculates buffer pitch in bytes.
+ */
+static u32 get_line_length(struct i810fb_par *par, int xres_virtual, int bpp)
+{
+ u32 length;
+
+ length = xres_virtual*bpp;
+ length = (length+31)&-32;
+ length >>= 3;
+ return length;
+}
+
+/**
+ * i810_calc_dclk - calculates the P, M, and N values of a pixelclock value
+ * @freq: target pixelclock in picoseconds
+ * @m: where to write M register
+ * @n: where to write N register
+ * @p: where to write P register
+ *
+ * DESCRIPTION:
+ * Based on the formula Freq_actual = (4*M*Freq_ref)/(N^P)
+ * Repeatedly computes the Freq until the actual Freq is equal to
+ * the target Freq or until the loop count is zero. In the latter
+ * case, the actual frequency nearest the target will be used.
+ */
+static void i810_calc_dclk(u32 freq, u32 *m, u32 *n, u32 *p)
+{
+ u32 m_reg, n_reg, p_divisor, n_target_max;
+ u32 m_target, n_target, p_target, n_best, m_best, mod;
+ u32 f_out, target_freq, diff = 0, mod_min, diff_min;
+
+ diff_min = mod_min = 0xFFFFFFFF;
+ n_best = m_best = m_target = f_out = 0;
+
+ target_freq = freq;
+ n_target_max = 30;
+
+ /*
+ * find P such that target freq is 16x reference freq (Hz).
+ */
+ p_divisor = 1;
+ p_target = 0;
+ while(!((1000000 * p_divisor)/(16 * 24 * target_freq)) &&
+ p_divisor <= 32) {
+ p_divisor <<= 1;
+ p_target++;
+ }
+
+ n_reg = m_reg = n_target = 3;
+ while (diff_min && mod_min && (n_target < n_target_max)) {
+ f_out = (p_divisor * n_reg * 1000000)/(4 * 24 * m_reg);
+ mod = (p_divisor * n_reg * 1000000) % (4 * 24 * m_reg);
+ m_target = m_reg;
+ n_target = n_reg;
+ if (f_out <= target_freq) {
+ n_reg++;
+ diff = target_freq - f_out;
+ } else {
+ m_reg++;
+ diff = f_out - target_freq;
+ }
+
+ if (diff_min > diff) {
+ diff_min = diff;
+ n_best = n_target;
+ m_best = m_target;
+ }
+
+ if (!diff && mod_min > mod) {
+ mod_min = mod;
+ n_best = n_target;
+ m_best = m_target;
+ }
+ }
+ if (m) *m = (m_best - 2) & 0x3FF;
+ if (n) *n = (n_best - 2) & 0x3FF;
+ if (p) *p = (p_target << 4);
+}
+
+/*************************************************************
+ * Hardware Cursor Routines *
+ *************************************************************/
+
+/**
+ * i810_enable_cursor - show or hide the hardware cursor
+ * @mmio: address of register space
+ * @mode: show (1) or hide (0)
+ *
+ * Description:
+ * Shows or hides the hardware cursor
+ */
+static void i810_enable_cursor(u8 __iomem *mmio, int mode)
+{
+ u32 temp;
+
+ temp = i810_readl(PIXCONF, mmio);
+ temp = (mode == ON) ? temp | CURSOR_ENABLE_MASK :
+ temp & ~CURSOR_ENABLE_MASK;
+
+ i810_writel(PIXCONF, mmio, temp);
+}
+
+static void i810_reset_cursor_image(struct i810fb_par *par)
+{
+ u8 __iomem *addr = par->cursor_heap.virtual;
+ int i, j;
+
+ for (i = 64; i--; ) {
+ for (j = 0; j < 8; j++) {
+ i810_writeb(j, addr, 0xff);
+ i810_writeb(j+8, addr, 0x00);
+ }
+ addr +=16;
+ }
+}
+
+static void i810_load_cursor_image(int width, int height, u8 *data,
+ struct i810fb_par *par)
+{
+ u8 __iomem *addr = par->cursor_heap.virtual;
+ int i, j, w = width/8;
+ int mod = width % 8, t_mask, d_mask;
+
+ t_mask = 0xff >> mod;
+ d_mask = ~(0xff >> mod);
+ for (i = height; i--; ) {
+ for (j = 0; j < w; j++) {
+ i810_writeb(j+0, addr, 0x00);
+ i810_writeb(j+8, addr, *data++);
+ }
+ if (mod) {
+ i810_writeb(j+0, addr, t_mask);
+ i810_writeb(j+8, addr, *data++ & d_mask);
+ }
+ addr += 16;
+ }
+}
+
+static void i810_load_cursor_colors(int fg, int bg, struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+ u8 red, green, blue, trans, temp;
+
+ i810fb_getcolreg(bg, &red, &green, &blue, &trans, info);
+
+ temp = i810_readb(PIXCONF1, mmio);
+ i810_writeb(PIXCONF1, mmio, temp | EXTENDED_PALETTE);
+
+ i810_write_dac(4, red, green, blue, mmio);
+
+ i810_writeb(PIXCONF1, mmio, temp);
+
+ i810fb_getcolreg(fg, &red, &green, &blue, &trans, info);
+ temp = i810_readb(PIXCONF1, mmio);
+ i810_writeb(PIXCONF1, mmio, temp | EXTENDED_PALETTE);
+
+ i810_write_dac(5, red, green, blue, mmio);
+
+ i810_writeb(PIXCONF1, mmio, temp);
+}
+
+/**
+ * i810_init_cursor - initializes the cursor
+ * @par: pointer to i810fb_par structure
+ *
+ * DESCRIPTION:
+ * Initializes the cursor registers
+ */
+static void i810_init_cursor(struct i810fb_par *par)
+{
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ i810_enable_cursor(mmio, OFF);
+ i810_writel(CURBASE, mmio, par->cursor_heap.physical);
+ i810_writew(CURCNTR, mmio, COORD_ACTIVE | CURSOR_MODE_64_XOR);
+}
+
+/*********************************************************************
+ * Framebuffer hook helpers *
+ *********************************************************************/
+/**
+ * i810_round_off - Round off values to capability of hardware
+ * @var: pointer to fb_var_screeninfo structure
+ *
+ * DESCRIPTION:
+ * @var contains user-defined information for the mode to be set.
+ * This will try modify those values to ones nearest the
+ * capability of the hardware
+ */
+static void i810_round_off(struct fb_var_screeninfo *var)
+{
+ u32 xres, yres, vxres, vyres;
+
+ /*
+ * Presently supports only these configurations
+ */
+
+ xres = var->xres;
+ yres = var->yres;
+ vxres = var->xres_virtual;
+ vyres = var->yres_virtual;
+
+ var->bits_per_pixel += 7;
+ var->bits_per_pixel &= ~7;
+
+ if (var->bits_per_pixel < 8)
+ var->bits_per_pixel = 8;
+ if (var->bits_per_pixel > 32)
+ var->bits_per_pixel = 32;
+
+ round_off_xres(&xres);
+ if (xres < 40)
+ xres = 40;
+ if (xres > 2048)
+ xres = 2048;
+ xres = (xres + 7) & ~7;
+
+ if (vxres < xres)
+ vxres = xres;
+
+ round_off_yres(&xres, &yres);
+ if (yres < 1)
+ yres = 1;
+ if (yres >= 2048)
+ yres = 2048;
+
+ if (vyres < yres)
+ vyres = yres;
+
+ if (var->bits_per_pixel == 32)
+ var->accel_flags = 0;
+
+ /* round of horizontal timings to nearest 8 pixels */
+ var->left_margin = (var->left_margin + 4) & ~7;
+ var->right_margin = (var->right_margin + 4) & ~7;
+ var->hsync_len = (var->hsync_len + 4) & ~7;
+
+ if (var->vmode & FB_VMODE_INTERLACED) {
+ if (!((yres + var->upper_margin + var->vsync_len +
+ var->lower_margin) & 1))
+ var->upper_margin++;
+ }
+
+ var->xres = xres;
+ var->yres = yres;
+ var->xres_virtual = vxres;
+ var->yres_virtual = vyres;
+}
+
+/**
+ * set_color_bitfields - sets rgba fields
+ * @var: pointer to fb_var_screeninfo
+ *
+ * DESCRIPTION:
+ * The length, offset and ordering for each color field
+ * (red, green, blue) will be set as specified
+ * by the hardware
+ */
+static void set_color_bitfields(struct fb_var_screeninfo *var)
+{
+ switch (var->bits_per_pixel) {
+ case 8:
+ var->red.offset = 0;
+ var->red.length = 8;
+ var->green.offset = 0;
+ var->green.length = 8;
+ var->blue.offset = 0;
+ var->blue.length = 8;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ break;
+ case 16:
+ var->green.length = (var->green.length == 5) ? 5 : 6;
+ var->red.length = 5;
+ var->blue.length = 5;
+ var->transp.length = 6 - var->green.length;
+ var->blue.offset = 0;
+ var->green.offset = 5;
+ var->red.offset = 5 + var->green.length;
+ var->transp.offset = (5 + var->red.offset) & 15;
+ break;
+ case 24: /* RGB 888 */
+ case 32: /* RGBA 8888 */
+ var->red.offset = 16;
+ var->red.length = 8;
+ var->green.offset = 8;
+ var->green.length = 8;
+ var->blue.offset = 0;
+ var->blue.length = 8;
+ var->transp.length = var->bits_per_pixel - 24;
+ var->transp.offset = (var->transp.length) ? 24 : 0;
+ break;
+ }
+ var->red.msb_right = 0;
+ var->green.msb_right = 0;
+ var->blue.msb_right = 0;
+ var->transp.msb_right = 0;
+}
+
+/**
+ * i810_check_params - check if contents in var are valid
+ * @var: pointer to fb_var_screeninfo
+ * @info: pointer to fb_info
+ *
+ * DESCRIPTION:
+ * This will check if the framebuffer size is sufficient
+ * for the current mode and if the user's monitor has the
+ * required specifications to display the current mode.
+ */
+static int i810_check_params(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ int line_length, vidmem, mode_valid = 0, retval = 0;
+ u32 vyres = var->yres_virtual, vxres = var->xres_virtual;
+
+ /*
+ * Memory limit
+ */
+ line_length = get_line_length(par, vxres, var->bits_per_pixel);
+ vidmem = line_length*vyres;
+
+ if (vidmem > par->fb.size) {
+ vyres = par->fb.size/line_length;
+ if (vyres < var->yres) {
+ vyres = info->var.yres;
+ vxres = par->fb.size/vyres;
+ vxres /= var->bits_per_pixel >> 3;
+ line_length = get_line_length(par, vxres,
+ var->bits_per_pixel);
+ vidmem = line_length * info->var.yres;
+ if (vxres < var->xres) {
+ printk("i810fb: required video memory, "
+ "%d bytes, for %dx%d-%d (virtual) "
+ "is out of range\n",
+ vidmem, vxres, vyres,
+ var->bits_per_pixel);
+ return -ENOMEM;
+ }
+ }
+ }
+
+ var->xres_virtual = vxres;
+ var->yres_virtual = vyres;
+
+ /*
+ * Monitor limit
+ */
+ switch (var->bits_per_pixel) {
+ case 8:
+ info->monspecs.dclkmax = 234000000;
+ break;
+ case 16:
+ info->monspecs.dclkmax = 229000000;
+ break;
+ case 24:
+ case 32:
+ info->monspecs.dclkmax = 204000000;
+ break;
+ }
+
+ info->monspecs.dclkmin = 15000000;
+
+ if (!fb_validate_mode(var, info))
+ mode_valid = 1;
+
+#ifdef CONFIG_FB_I810_I2C
+ if (!mode_valid && info->monspecs.gtf &&
+ !fb_get_mode(FB_MAXTIMINGS, 0, var, info))
+ mode_valid = 1;
+
+ if (!mode_valid && info->monspecs.modedb_len) {
+ const struct fb_videomode *mode;
+
+ mode = fb_find_best_mode(var, &info->modelist);
+ if (mode) {
+ fb_videomode_to_var(var, mode);
+ mode_valid = 1;
+ }
+ }
+#endif
+ if (!mode_valid && info->monspecs.modedb_len == 0) {
+ if (fb_get_mode(FB_MAXTIMINGS, 0, var, info)) {
+ int default_sync = (info->monspecs.hfmin-HFMIN)
+ |(info->monspecs.hfmax-HFMAX)
+ |(info->monspecs.vfmin-VFMIN)
+ |(info->monspecs.vfmax-VFMAX);
+ printk("i810fb: invalid video mode%s\n",
+ default_sync ? "" : ". Specifying "
+ "vsyncN/hsyncN parameters may help");
+ retval = -EINVAL;
+ }
+ }
+
+ return retval;
+}
+
+/**
+ * encode_fix - fill up fb_fix_screeninfo structure
+ * @fix: pointer to fb_fix_screeninfo
+ * @info: pointer to fb_info
+ *
+ * DESCRIPTION:
+ * This will set up parameters that are unmodifiable by the user.
+ */
+static int encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+
+ memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+
+ strcpy(fix->id, "I810");
+ mutex_lock(&info->mm_lock);
+ fix->smem_start = par->fb.physical;
+ fix->smem_len = par->fb.size;
+ mutex_unlock(&info->mm_lock);
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->type_aux = 0;
+ fix->xpanstep = 8;
+ fix->ypanstep = 1;
+
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ break;
+ case 16:
+ case 24:
+ case 32:
+ if (info->var.nonstd)
+ fix->visual = FB_VISUAL_DIRECTCOLOR;
+ else
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ break;
+ default:
+ return -EINVAL;
+ }
+ fix->ywrapstep = 0;
+ fix->line_length = par->pitch;
+ fix->mmio_start = par->mmio_start_phys;
+ fix->mmio_len = MMIO_SIZE;
+ fix->accel = FB_ACCEL_I810;
+
+ return 0;
+}
+
+/**
+ * decode_var - modify par according to contents of var
+ * @var: pointer to fb_var_screeninfo
+ * @par: pointer to i810fb_par
+ *
+ * DESCRIPTION:
+ * Based on the contents of @var, @par will be dynamically filled up.
+ * @par contains all information necessary to modify the hardware.
+*/
+static void decode_var(const struct fb_var_screeninfo *var,
+ struct i810fb_par *par)
+{
+ u32 xres, yres, vxres, vyres;
+
+ xres = var->xres;
+ yres = var->yres;
+ vxres = var->xres_virtual;
+ vyres = var->yres_virtual;
+
+ switch (var->bits_per_pixel) {
+ case 8:
+ par->pixconf = PIXCONF8;
+ par->bltcntl = 0;
+ par->depth = 1;
+ par->blit_bpp = BPP8;
+ break;
+ case 16:
+ if (var->green.length == 5)
+ par->pixconf = PIXCONF15;
+ else
+ par->pixconf = PIXCONF16;
+ par->bltcntl = 16;
+ par->depth = 2;
+ par->blit_bpp = BPP16;
+ break;
+ case 24:
+ par->pixconf = PIXCONF24;
+ par->bltcntl = 32;
+ par->depth = 3;
+ par->blit_bpp = BPP24;
+ break;
+ case 32:
+ par->pixconf = PIXCONF32;
+ par->bltcntl = 0;
+ par->depth = 4;
+ par->blit_bpp = 3 << 24;
+ break;
+ }
+ if (var->nonstd && var->bits_per_pixel != 8)
+ par->pixconf |= 1 << 27;
+
+ i810_calc_dclk(var->pixclock, &par->regs.M,
+ &par->regs.N, &par->regs.P);
+ i810fb_encode_registers(var, par, xres, yres);
+
+ par->watermark = i810_get_watermark(var, par);
+ par->pitch = get_line_length(par, vxres, var->bits_per_pixel);
+}
+
+/**
+ * i810fb_getcolreg - gets red, green and blue values of the hardware DAC
+ * @regno: DAC index
+ * @red: red
+ * @green: green
+ * @blue: blue
+ * @transp: transparency (alpha)
+ * @info: pointer to fb_info
+ *
+ * DESCRIPTION:
+ * Gets the red, green and blue values of the hardware DAC as pointed by @regno
+ * and writes them to @red, @green and @blue respectively
+ */
+static int i810fb_getcolreg(u8 regno, u8 *red, u8 *green, u8 *blue,
+ u8 *transp, struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+ u8 temp;
+
+ if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+ if ((info->var.green.length == 5 && regno > 31) ||
+ (info->var.green.length == 6 && regno > 63))
+ return 1;
+ }
+
+ temp = i810_readb(PIXCONF1, mmio);
+ i810_writeb(PIXCONF1, mmio, temp & ~EXTENDED_PALETTE);
+
+ if (info->fix.visual == FB_VISUAL_DIRECTCOLOR &&
+ info->var.green.length == 5)
+ i810_read_dac(regno * 8, red, green, blue, mmio);
+
+ else if (info->fix.visual == FB_VISUAL_DIRECTCOLOR &&
+ info->var.green.length == 6) {
+ u8 tmp;
+
+ i810_read_dac(regno * 8, red, &tmp, blue, mmio);
+ i810_read_dac(regno * 4, &tmp, green, &tmp, mmio);
+ }
+ else
+ i810_read_dac(regno, red, green, blue, mmio);
+
+ *transp = 0;
+ i810_writeb(PIXCONF1, mmio, temp);
+
+ return 0;
+}
+
+/******************************************************************
+ * Framebuffer device-specific hooks *
+ ******************************************************************/
+
+static int i810fb_open(struct fb_info *info, int user)
+{
+ struct i810fb_par *par = info->par;
+
+ mutex_lock(&par->open_lock);
+ if (par->use_count == 0) {
+ memset(&par->state, 0, sizeof(struct vgastate));
+ par->state.flags = VGA_SAVE_CMAP;
+ par->state.vgabase = par->mmio_start_virtual;
+ save_vga(&par->state);
+
+ i810_save_vga_state(par);
+ }
+
+ par->use_count++;
+ mutex_unlock(&par->open_lock);
+
+ return 0;
+}
+
+static int i810fb_release(struct fb_info *info, int user)
+{
+ struct i810fb_par *par = info->par;
+
+ mutex_lock(&par->open_lock);
+ if (par->use_count == 0) {
+ mutex_unlock(&par->open_lock);
+ return -EINVAL;
+ }
+
+ if (par->use_count == 1) {
+ i810_restore_vga_state(par);
+ restore_vga(&par->state);
+ }
+
+ par->use_count--;
+ mutex_unlock(&par->open_lock);
+
+ return 0;
+}
+
+
+static int i810fb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+ u8 temp;
+ int i;
+
+ if (regno > 255) return 1;
+
+ if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+ if ((info->var.green.length == 5 && regno > 31) ||
+ (info->var.green.length == 6 && regno > 63))
+ return 1;
+ }
+
+ if (info->var.grayscale)
+ red = green = blue = (19595 * red + 38470 * green +
+ 7471 * blue) >> 16;
+
+ temp = i810_readb(PIXCONF1, mmio);
+ i810_writeb(PIXCONF1, mmio, temp & ~EXTENDED_PALETTE);
+
+ if (info->fix.visual == FB_VISUAL_DIRECTCOLOR &&
+ info->var.green.length == 5) {
+ for (i = 0; i < 8; i++)
+ i810_write_dac((u8) (regno * 8) + i, (u8) red,
+ (u8) green, (u8) blue, mmio);
+ } else if (info->fix.visual == FB_VISUAL_DIRECTCOLOR &&
+ info->var.green.length == 6) {
+ u8 r, g, b;
+
+ if (regno < 32) {
+ for (i = 0; i < 8; i++)
+ i810_write_dac((u8) (regno * 8) + i,
+ (u8) red, (u8) green,
+ (u8) blue, mmio);
+ }
+ i810_read_dac((u8) (regno*4), &r, &g, &b, mmio);
+ for (i = 0; i < 4; i++)
+ i810_write_dac((u8) (regno*4) + i, r, (u8) green,
+ b, mmio);
+ } else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
+ i810_write_dac((u8) regno, (u8) red, (u8) green,
+ (u8) blue, mmio);
+ }
+
+ i810_writeb(PIXCONF1, mmio, temp);
+
+ if (regno < 16) {
+ switch (info->var.bits_per_pixel) {
+ case 16:
+ if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+ if (info->var.green.length == 5)
+ ((u32 *)info->pseudo_palette)[regno] =
+ (regno << 10) | (regno << 5) |
+ regno;
+ else
+ ((u32 *)info->pseudo_palette)[regno] =
+ (regno << 11) | (regno << 5) |
+ regno;
+ } else {
+ if (info->var.green.length == 5) {
+ /* RGB 555 */
+ ((u32 *)info->pseudo_palette)[regno] =
+ ((red & 0xf800) >> 1) |
+ ((green & 0xf800) >> 6) |
+ ((blue & 0xf800) >> 11);
+ } else {
+ /* RGB 565 */
+ ((u32 *)info->pseudo_palette)[regno] =
+ (red & 0xf800) |
+ ((green & 0xf800) >> 5) |
+ ((blue & 0xf800) >> 11);
+ }
+ }
+ break;
+ case 24: /* RGB 888 */
+ case 32: /* RGBA 8888 */
+ if (info->fix.visual == FB_VISUAL_DIRECTCOLOR)
+ ((u32 *)info->pseudo_palette)[regno] =
+ (regno << 16) | (regno << 8) |
+ regno;
+ else
+ ((u32 *)info->pseudo_palette)[regno] =
+ ((red & 0xff00) << 8) |
+ (green & 0xff00) |
+ ((blue & 0xff00) >> 8);
+ break;
+ }
+ }
+ return 0;
+}
+
+static int i810fb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ u32 total;
+
+ total = var->xoffset * par->depth +
+ var->yoffset * info->fix.line_length;
+ i810fb_load_front(total, info);
+
+ return 0;
+}
+
+static int i810fb_blank (int blank_mode, struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+ int mode = 0, pwr, scr_off = 0;
+
+ pwr = i810_readl(PWR_CLKC, mmio);
+
+ switch (blank_mode) {
+ case FB_BLANK_UNBLANK:
+ mode = POWERON;
+ pwr |= 1;
+ scr_off = ON;
+ break;
+ case FB_BLANK_NORMAL:
+ mode = POWERON;
+ pwr |= 1;
+ scr_off = OFF;
+ break;
+ case FB_BLANK_VSYNC_SUSPEND:
+ mode = STANDBY;
+ pwr |= 1;
+ scr_off = OFF;
+ break;
+ case FB_BLANK_HSYNC_SUSPEND:
+ mode = SUSPEND;
+ pwr |= 1;
+ scr_off = OFF;
+ break;
+ case FB_BLANK_POWERDOWN:
+ mode = POWERDOWN;
+ pwr &= ~1;
+ scr_off = OFF;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ i810_screen_off(mmio, scr_off);
+ i810_writel(HVSYNC, mmio, mode);
+ i810_writel(PWR_CLKC, mmio, pwr);
+
+ return 0;
+}
+
+static int i810fb_set_par(struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+
+ decode_var(&info->var, par);
+ i810_load_regs(par);
+ i810_init_cursor(par);
+ encode_fix(&info->fix, info);
+
+ if (info->var.accel_flags && !(par->dev_flags & LOCKUP)) {
+ info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
+ FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
+ FBINFO_HWACCEL_IMAGEBLIT;
+ info->pixmap.scan_align = 2;
+ } else {
+ info->pixmap.scan_align = 1;
+ info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
+ }
+ return 0;
+}
+
+static int i810fb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ int err;
+
+ if (IS_DVT) {
+ var->vmode &= ~FB_VMODE_MASK;
+ var->vmode |= FB_VMODE_NONINTERLACED;
+ }
+ if (var->vmode & FB_VMODE_DOUBLE) {
+ var->vmode &= ~FB_VMODE_MASK;
+ var->vmode |= FB_VMODE_NONINTERLACED;
+ }
+
+ i810_round_off(var);
+ if ((err = i810_check_params(var, info)))
+ return err;
+
+ i810fb_fill_var_timings(var);
+ set_color_bitfields(var);
+ return 0;
+}
+
+static int i810fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
+{
+ struct i810fb_par *par = info->par;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ if (par->dev_flags & LOCKUP)
+ return -ENXIO;
+
+ if (cursor->image.width > 64 || cursor->image.height > 64)
+ return -ENXIO;
+
+ if ((i810_readl(CURBASE, mmio) & 0xf) != par->cursor_heap.physical) {
+ i810_init_cursor(par);
+ cursor->set |= FB_CUR_SETALL;
+ }
+
+ i810_enable_cursor(mmio, OFF);
+
+ if (cursor->set & FB_CUR_SETPOS) {
+ u32 tmp;
+
+ tmp = (cursor->image.dx - info->var.xoffset) & 0xffff;
+ tmp |= (cursor->image.dy - info->var.yoffset) << 16;
+ i810_writel(CURPOS, mmio, tmp);
+ }
+
+ if (cursor->set & FB_CUR_SETSIZE)
+ i810_reset_cursor_image(par);
+
+ if (cursor->set & FB_CUR_SETCMAP)
+ i810_load_cursor_colors(cursor->image.fg_color,
+ cursor->image.bg_color,
+ info);
+
+ if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
+ int size = ((cursor->image.width + 7) >> 3) *
+ cursor->image.height;
+ int i;
+ u8 *data = kmalloc(64 * 8, GFP_ATOMIC);
+
+ if (data == NULL)
+ return -ENOMEM;
+
+ switch (cursor->rop) {
+ case ROP_XOR:
+ for (i = 0; i < size; i++)
+ data[i] = cursor->image.data[i] ^ cursor->mask[i];
+ break;
+ case ROP_COPY:
+ default:
+ for (i = 0; i < size; i++)
+ data[i] = cursor->image.data[i] & cursor->mask[i];
+ break;
+ }
+
+ i810_load_cursor_image(cursor->image.width,
+ cursor->image.height, data,
+ par);
+ kfree(data);
+ }
+
+ if (cursor->enable)
+ i810_enable_cursor(mmio, ON);
+
+ return 0;
+}
+
+static const struct fb_ops i810fb_ops = {
+ .owner = THIS_MODULE,
+ .fb_open = i810fb_open,
+ .fb_release = i810fb_release,
+ .fb_check_var = i810fb_check_var,
+ .fb_set_par = i810fb_set_par,
+ .fb_setcolreg = i810fb_setcolreg,
+ .fb_blank = i810fb_blank,
+ .fb_pan_display = i810fb_pan_display,
+ .fb_fillrect = i810fb_fillrect,
+ .fb_copyarea = i810fb_copyarea,
+ .fb_imageblit = i810fb_imageblit,
+ .fb_cursor = i810fb_cursor,
+ .fb_sync = i810fb_sync,
+};
+
+/***********************************************************************
+ * Power Management *
+ ***********************************************************************/
+static int i810fb_suspend(struct pci_dev *dev, pm_message_t mesg)
+{
+ struct fb_info *info = pci_get_drvdata(dev);
+ struct i810fb_par *par = info->par;
+
+ par->cur_state = mesg.event;
+
+ switch (mesg.event) {
+ case PM_EVENT_FREEZE:
+ case PM_EVENT_PRETHAW:
+ dev->dev.power.power_state = mesg;
+ return 0;
+ }
+
+ console_lock();
+ fb_set_suspend(info, 1);
+
+ if (info->fbops->fb_sync)
+ info->fbops->fb_sync(info);
+
+ i810fb_blank(FB_BLANK_POWERDOWN, info);
+ agp_unbind_memory(par->i810_gtt.i810_fb_memory);
+ agp_unbind_memory(par->i810_gtt.i810_cursor_memory);
+
+ pci_save_state(dev);
+ pci_disable_device(dev);
+ pci_set_power_state(dev, pci_choose_state(dev, mesg));
+ console_unlock();
+
+ return 0;
+}
+
+static int i810fb_resume(struct pci_dev *dev)
+{
+ struct fb_info *info = pci_get_drvdata(dev);
+ struct i810fb_par *par = info->par;
+ int cur_state = par->cur_state;
+
+ par->cur_state = PM_EVENT_ON;
+
+ if (cur_state == PM_EVENT_FREEZE) {
+ pci_set_power_state(dev, PCI_D0);
+ return 0;
+ }
+
+ console_lock();
+ pci_set_power_state(dev, PCI_D0);
+ pci_restore_state(dev);
+
+ if (pci_enable_device(dev))
+ goto fail;
+
+ pci_set_master(dev);
+ agp_bind_memory(par->i810_gtt.i810_fb_memory,
+ par->fb.offset);
+ agp_bind_memory(par->i810_gtt.i810_cursor_memory,
+ par->cursor_heap.offset);
+ i810fb_set_par(info);
+ fb_set_suspend (info, 0);
+ info->fbops->fb_blank(VESA_NO_BLANKING, info);
+fail:
+ console_unlock();
+ return 0;
+}
+/***********************************************************************
+ * AGP resource allocation *
+ ***********************************************************************/
+
+static void i810_fix_pointers(struct i810fb_par *par)
+{
+ par->fb.physical = par->aperture.physical+(par->fb.offset << 12);
+ par->fb.virtual = par->aperture.virtual+(par->fb.offset << 12);
+ par->iring.physical = par->aperture.physical +
+ (par->iring.offset << 12);
+ par->iring.virtual = par->aperture.virtual +
+ (par->iring.offset << 12);
+ par->cursor_heap.virtual = par->aperture.virtual+
+ (par->cursor_heap.offset << 12);
+}
+
+static void i810_fix_offsets(struct i810fb_par *par)
+{
+ if (vram + 1 > par->aperture.size >> 20)
+ vram = (par->aperture.size >> 20) - 1;
+ if (v_offset_default > (par->aperture.size >> 20))
+ v_offset_default = (par->aperture.size >> 20);
+ if (vram + v_offset_default + 1 > par->aperture.size >> 20)
+ v_offset_default = (par->aperture.size >> 20) - (vram + 1);
+
+ par->fb.size = vram << 20;
+ par->fb.offset = v_offset_default << 20;
+ par->fb.offset >>= 12;
+
+ par->iring.offset = par->fb.offset + (par->fb.size >> 12);
+ par->iring.size = RINGBUFFER_SIZE;
+
+ par->cursor_heap.offset = par->iring.offset + (RINGBUFFER_SIZE >> 12);
+ par->cursor_heap.size = 4096;
+}
+
+static int i810_alloc_agp_mem(struct fb_info *info)
+{
+ struct i810fb_par *par = info->par;
+ int size;
+ struct agp_bridge_data *bridge;
+
+ i810_fix_offsets(par);
+ size = par->fb.size + par->iring.size;
+
+ if (!(bridge = agp_backend_acquire(par->dev))) {
+ printk("i810fb_alloc_fbmem: cannot acquire agpgart\n");
+ return -ENODEV;
+ }
+ if (!(par->i810_gtt.i810_fb_memory =
+ agp_allocate_memory(bridge, size >> 12, AGP_NORMAL_MEMORY))) {
+ printk("i810fb_alloc_fbmem: can't allocate framebuffer "
+ "memory\n");
+ agp_backend_release(bridge);
+ return -ENOMEM;
+ }
+ if (agp_bind_memory(par->i810_gtt.i810_fb_memory,
+ par->fb.offset)) {
+ printk("i810fb_alloc_fbmem: can't bind framebuffer memory\n");
+ agp_backend_release(bridge);
+ return -EBUSY;
+ }
+
+ if (!(par->i810_gtt.i810_cursor_memory =
+ agp_allocate_memory(bridge, par->cursor_heap.size >> 12,
+ AGP_PHYSICAL_MEMORY))) {
+ printk("i810fb_alloc_cursormem: can't allocate "
+ "cursor memory\n");
+ agp_backend_release(bridge);
+ return -ENOMEM;
+ }
+ if (agp_bind_memory(par->i810_gtt.i810_cursor_memory,
+ par->cursor_heap.offset)) {
+ printk("i810fb_alloc_cursormem: cannot bind cursor memory\n");
+ agp_backend_release(bridge);
+ return -EBUSY;
+ }
+
+ par->cursor_heap.physical = par->i810_gtt.i810_cursor_memory->physical;
+
+ i810_fix_pointers(par);
+
+ agp_backend_release(bridge);
+
+ return 0;
+}
+
+/***************************************************************
+ * Initialization *
+ ***************************************************************/
+
+/**
+ * i810_init_monspecs
+ * @info: pointer to device specific info structure
+ *
+ * DESCRIPTION:
+ * Sets the user monitor's horizontal and vertical
+ * frequency limits
+ */
+static void i810_init_monspecs(struct fb_info *info)
+{
+ if (!hsync1)
+ hsync1 = HFMIN;
+ if (!hsync2)
+ hsync2 = HFMAX;
+ if (!info->monspecs.hfmax)
+ info->monspecs.hfmax = hsync2;
+ if (!info->monspecs.hfmin)
+ info->monspecs.hfmin = hsync1;
+ if (hsync2 < hsync1)
+ info->monspecs.hfmin = hsync2;
+
+ if (!vsync1)
+ vsync1 = VFMIN;
+ if (!vsync2)
+ vsync2 = VFMAX;
+ if (IS_DVT && vsync1 < 60)
+ vsync1 = 60;
+ if (!info->monspecs.vfmax)
+ info->monspecs.vfmax = vsync2;
+ if (!info->monspecs.vfmin)
+ info->monspecs.vfmin = vsync1;
+ if (vsync2 < vsync1)
+ info->monspecs.vfmin = vsync2;
+}
+
+/**
+ * i810_init_defaults - initializes default values to use
+ * @par: pointer to i810fb_par structure
+ * @info: pointer to current fb_info structure
+ */
+static void i810_init_defaults(struct i810fb_par *par, struct fb_info *info)
+{
+ mutex_init(&par->open_lock);
+
+ if (voffset)
+ v_offset_default = voffset;
+ else if (par->aperture.size > 32 * 1024 * 1024)
+ v_offset_default = 16;
+ else
+ v_offset_default = 8;
+
+ if (!vram)
+ vram = 1;
+
+ if (accel)
+ par->dev_flags |= HAS_ACCELERATION;
+
+ if (sync)
+ par->dev_flags |= ALWAYS_SYNC;
+
+ par->ddc_num = (ddc3 ? 3 : 2);
+
+ if (bpp < 8)
+ bpp = 8;
+
+ par->i810fb_ops = i810fb_ops;
+
+ if (xres)
+ info->var.xres = xres;
+ else
+ info->var.xres = 640;
+
+ if (yres)
+ info->var.yres = yres;
+ else
+ info->var.yres = 480;
+
+ if (!vyres)
+ vyres = (vram << 20)/(info->var.xres*bpp >> 3);
+
+ info->var.yres_virtual = vyres;
+ info->var.bits_per_pixel = bpp;
+
+ if (dcolor)
+ info->var.nonstd = 1;
+
+ if (par->dev_flags & HAS_ACCELERATION)
+ info->var.accel_flags = 1;
+
+ i810_init_monspecs(info);
+}
+
+/**
+ * i810_init_device - initialize device
+ * @par: pointer to i810fb_par structure
+ */
+static void i810_init_device(struct i810fb_par *par)
+{
+ u8 reg;
+ u8 __iomem *mmio = par->mmio_start_virtual;
+
+ if (mtrr)
+ par->wc_cookie= arch_phys_wc_add((u32) par->aperture.physical,
+ par->aperture.size);
+
+ i810_init_cursor(par);
+
+ /* mvo: enable external vga-connector (for laptops) */
+ if (extvga) {
+ i810_writel(HVSYNC, mmio, 0);
+ i810_writel(PWR_CLKC, mmio, 3);
+ }
+
+ pci_read_config_byte(par->dev, 0x50, &reg);
+ reg &= FREQ_MASK;
+ par->mem_freq = (reg) ? 133 : 100;
+
+}
+
+static int i810_allocate_pci_resource(struct i810fb_par *par,
+ const struct pci_device_id *entry)
+{
+ int err;
+
+ if ((err = pci_enable_device(par->dev))) {
+ printk("i810fb_init: cannot enable device\n");
+ return err;
+ }
+ par->res_flags |= PCI_DEVICE_ENABLED;
+
+ if (pci_resource_len(par->dev, 0) > 512 * 1024) {
+ par->aperture.physical = pci_resource_start(par->dev, 0);
+ par->aperture.size = pci_resource_len(par->dev, 0);
+ par->mmio_start_phys = pci_resource_start(par->dev, 1);
+ } else {
+ par->aperture.physical = pci_resource_start(par->dev, 1);
+ par->aperture.size = pci_resource_len(par->dev, 1);
+ par->mmio_start_phys = pci_resource_start(par->dev, 0);
+ }
+ if (!par->aperture.size) {
+ printk("i810fb_init: device is disabled\n");
+ return -ENOMEM;
+ }
+
+ if (!request_mem_region(par->aperture.physical,
+ par->aperture.size,
+ i810_pci_list[entry->driver_data])) {
+ printk("i810fb_init: cannot request framebuffer region\n");
+ return -ENODEV;
+ }
+ par->res_flags |= FRAMEBUFFER_REQ;
+
+ par->aperture.virtual = ioremap_wc(par->aperture.physical,
+ par->aperture.size);
+ if (!par->aperture.virtual) {
+ printk("i810fb_init: cannot remap framebuffer region\n");
+ return -ENODEV;
+ }
+
+ if (!request_mem_region(par->mmio_start_phys,
+ MMIO_SIZE,
+ i810_pci_list[entry->driver_data])) {
+ printk("i810fb_init: cannot request mmio region\n");
+ return -ENODEV;
+ }
+ par->res_flags |= MMIO_REQ;
+
+ par->mmio_start_virtual = ioremap(par->mmio_start_phys,
+ MMIO_SIZE);
+ if (!par->mmio_start_virtual) {
+ printk("i810fb_init: cannot remap mmio region\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void i810fb_find_init_mode(struct fb_info *info)
+{
+ struct fb_videomode mode;
+ struct fb_var_screeninfo var;
+ struct fb_monspecs *specs = &info->monspecs;
+ int found = 0;
+#ifdef CONFIG_FB_I810_I2C
+ int i;
+ int err = 1;
+ struct i810fb_par *par = info->par;
+#endif
+
+ INIT_LIST_HEAD(&info->modelist);
+ memset(&mode, 0, sizeof(struct fb_videomode));
+ var = info->var;
+#ifdef CONFIG_FB_I810_I2C
+ i810_create_i2c_busses(par);
+
+ for (i = 0; i < par->ddc_num + 1; i++) {
+ err = i810_probe_i2c_connector(info, &par->edid, i);
+ if (!err)
+ break;
+ }
+
+ if (!err)
+ printk("i810fb_init_pci: DDC probe successful\n");
+
+ fb_edid_to_monspecs(par->edid, specs);
+
+ if (specs->modedb == NULL)
+ printk("i810fb_init_pci: Unable to get Mode Database\n");
+
+ fb_videomode_to_modelist(specs->modedb, specs->modedb_len,
+ &info->modelist);
+ if (specs->modedb != NULL) {
+ const struct fb_videomode *m;
+
+ if (xres && yres) {
+ if ((m = fb_find_best_mode(&var, &info->modelist))) {
+ mode = *m;
+ found = 1;
+ }
+ }
+
+ if (!found) {
+ m = fb_find_best_display(&info->monspecs, &info->modelist);
+ mode = *m;
+ found = 1;
+ }
+
+ fb_videomode_to_var(&var, &mode);
+ }
+#endif
+ if (mode_option)
+ fb_find_mode(&var, info, mode_option, specs->modedb,
+ specs->modedb_len, (found) ? &mode : NULL,
+ info->var.bits_per_pixel);
+
+ info->var = var;
+ fb_destroy_modedb(specs->modedb);
+ specs->modedb = NULL;
+}
+
+#ifndef MODULE
+static int i810fb_setup(char *options)
+{
+ char *this_opt, *suffix = NULL;
+
+ if (!options || !*options)
+ return 0;
+
+ while ((this_opt = strsep(&options, ",")) != NULL) {
+ if (!strncmp(this_opt, "mtrr", 4))
+ mtrr = true;
+ else if (!strncmp(this_opt, "accel", 5))
+ accel = true;
+ else if (!strncmp(this_opt, "extvga", 6))
+ extvga = true;
+ else if (!strncmp(this_opt, "sync", 4))
+ sync = true;
+ else if (!strncmp(this_opt, "vram:", 5))
+ vram = (simple_strtoul(this_opt+5, NULL, 0));
+ else if (!strncmp(this_opt, "voffset:", 8))
+ voffset = (simple_strtoul(this_opt+8, NULL, 0));
+ else if (!strncmp(this_opt, "xres:", 5))
+ xres = simple_strtoul(this_opt+5, NULL, 0);
+ else if (!strncmp(this_opt, "yres:", 5))
+ yres = simple_strtoul(this_opt+5, NULL, 0);
+ else if (!strncmp(this_opt, "vyres:", 6))
+ vyres = simple_strtoul(this_opt+6, NULL, 0);
+ else if (!strncmp(this_opt, "bpp:", 4))
+ bpp = simple_strtoul(this_opt+4, NULL, 0);
+ else if (!strncmp(this_opt, "hsync1:", 7)) {
+ hsync1 = simple_strtoul(this_opt+7, &suffix, 0);
+ if (strncmp(suffix, "H", 1))
+ hsync1 *= 1000;
+ } else if (!strncmp(this_opt, "hsync2:", 7)) {
+ hsync2 = simple_strtoul(this_opt+7, &suffix, 0);
+ if (strncmp(suffix, "H", 1))
+ hsync2 *= 1000;
+ } else if (!strncmp(this_opt, "vsync1:", 7))
+ vsync1 = simple_strtoul(this_opt+7, NULL, 0);
+ else if (!strncmp(this_opt, "vsync2:", 7))
+ vsync2 = simple_strtoul(this_opt+7, NULL, 0);
+ else if (!strncmp(this_opt, "dcolor", 6))
+ dcolor = true;
+ else if (!strncmp(this_opt, "ddc3", 4))
+ ddc3 = true;
+ else
+ mode_option = this_opt;
+ }
+ return 0;
+}
+#endif
+
+static int i810fb_init_pci(struct pci_dev *dev,
+ const struct pci_device_id *entry)
+{
+ struct fb_info *info;
+ struct i810fb_par *par = NULL;
+ struct fb_videomode mode;
+ int err = -1, vfreq, hfreq, pixclock;
+
+ err = aperture_remove_conflicting_pci_devices(dev, "i810fb");
+ if (err)
+ return err;
+
+ info = framebuffer_alloc(sizeof(struct i810fb_par), &dev->dev);
+ if (!info)
+ return -ENOMEM;
+
+ par = info->par;
+ par->dev = dev;
+
+ if (!(info->pixmap.addr = kzalloc(8*1024, GFP_KERNEL))) {
+ i810fb_release_resource(info, par);
+ return -ENOMEM;
+ }
+ info->pixmap.size = 8*1024;
+ info->pixmap.buf_align = 8;
+ info->pixmap.access_align = 32;
+ info->pixmap.flags = FB_PIXMAP_SYSTEM;
+
+ if ((err = i810_allocate_pci_resource(par, entry))) {
+ i810fb_release_resource(info, par);
+ return err;
+ }
+
+ i810_init_defaults(par, info);
+
+ if ((err = i810_alloc_agp_mem(info))) {
+ i810fb_release_resource(info, par);
+ return err;
+ }
+
+ i810_init_device(par);
+
+ info->screen_base = par->fb.virtual;
+ info->fbops = &par->i810fb_ops;
+ info->pseudo_palette = par->pseudo_palette;
+ fb_alloc_cmap(&info->cmap, 256, 0);
+ i810fb_find_init_mode(info);
+
+ if ((err = info->fbops->fb_check_var(&info->var, info))) {
+ i810fb_release_resource(info, par);
+ return err;
+ }
+
+ fb_var_to_videomode(&mode, &info->var);
+ fb_add_videomode(&mode, &info->modelist);
+
+ i810fb_init_ringbuffer(info);
+ err = register_framebuffer(info);
+
+ if (err < 0) {
+ i810fb_release_resource(info, par);
+ printk("i810fb_init: cannot register framebuffer device\n");
+ return err;
+ }
+
+ pci_set_drvdata(dev, info);
+ pixclock = 1000000000/(info->var.pixclock);
+ pixclock *= 1000;
+ hfreq = pixclock/(info->var.xres + info->var.left_margin +
+ info->var.hsync_len + info->var.right_margin);
+ vfreq = hfreq/(info->var.yres + info->var.upper_margin +
+ info->var.vsync_len + info->var.lower_margin);
+
+ printk("I810FB: fb%d : %s v%d.%d.%d%s\n"
+ "I810FB: Video RAM : %dK\n"
+ "I810FB: Monitor : H: %d-%d KHz V: %d-%d Hz\n"
+ "I810FB: Mode : %dx%d-%dbpp@%dHz\n",
+ info->node,
+ i810_pci_list[entry->driver_data],
+ VERSION_MAJOR, VERSION_MINOR, VERSION_TEENIE, BRANCH_VERSION,
+ (int) par->fb.size>>10, info->monspecs.hfmin/1000,
+ info->monspecs.hfmax/1000, info->monspecs.vfmin,
+ info->monspecs.vfmax, info->var.xres,
+ info->var.yres, info->var.bits_per_pixel, vfreq);
+ return 0;
+}
+
+/***************************************************************
+ * De-initialization *
+ ***************************************************************/
+
+static void i810fb_release_resource(struct fb_info *info,
+ struct i810fb_par *par)
+{
+ struct gtt_data *gtt = &par->i810_gtt;
+ arch_phys_wc_del(par->wc_cookie);
+
+ i810_delete_i2c_busses(par);
+
+ if (par->i810_gtt.i810_cursor_memory)
+ agp_free_memory(gtt->i810_cursor_memory);
+ if (par->i810_gtt.i810_fb_memory)
+ agp_free_memory(gtt->i810_fb_memory);
+
+ if (par->mmio_start_virtual)
+ iounmap(par->mmio_start_virtual);
+ if (par->aperture.virtual)
+ iounmap(par->aperture.virtual);
+ kfree(par->edid);
+ if (par->res_flags & FRAMEBUFFER_REQ)
+ release_mem_region(par->aperture.physical,
+ par->aperture.size);
+ if (par->res_flags & MMIO_REQ)
+ release_mem_region(par->mmio_start_phys, MMIO_SIZE);
+
+ framebuffer_release(info);
+
+}
+
+static void i810fb_remove_pci(struct pci_dev *dev)
+{
+ struct fb_info *info = pci_get_drvdata(dev);
+ struct i810fb_par *par = info->par;
+
+ unregister_framebuffer(info);
+ i810fb_release_resource(info, par);
+ printk("cleanup_module: unloaded i810 framebuffer device\n");
+}
+
+#ifndef MODULE
+static int i810fb_init(void)
+{
+ char *option = NULL;
+
+ if (fb_get_options("i810fb", &option))
+ return -ENODEV;
+ i810fb_setup(option);
+
+ return pci_register_driver(&i810fb_driver);
+}
+#endif
+
+/*********************************************************************
+ * Modularization *
+ *********************************************************************/
+
+#ifdef MODULE
+
+static int i810fb_init(void)
+{
+ hsync1 *= 1000;
+ hsync2 *= 1000;
+
+ return pci_register_driver(&i810fb_driver);
+}
+
+module_param(vram, int, 0);
+MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB"
+ " (default=4)");
+module_param(voffset, int, 0);
+MODULE_PARM_DESC(voffset, "at what offset to place start of framebuffer "
+ "memory (0 to maximum aperture size), in MiB (default = 48)");
+module_param(bpp, int, 0);
+MODULE_PARM_DESC(bpp, "Color depth for display in bits per pixel"
+ " (default = 8)");
+module_param(xres, int, 0);
+MODULE_PARM_DESC(xres, "Horizontal resolution in pixels (default = 640)");
+module_param(yres, int, 0);
+MODULE_PARM_DESC(yres, "Vertical resolution in scanlines (default = 480)");
+module_param(vyres,int, 0);
+MODULE_PARM_DESC(vyres, "Virtual vertical resolution in scanlines"
+ " (default = 480)");
+module_param(hsync1, int, 0);
+MODULE_PARM_DESC(hsync1, "Minimum horizontal frequency of monitor in KHz"
+ " (default = 29)");
+module_param(hsync2, int, 0);
+MODULE_PARM_DESC(hsync2, "Maximum horizontal frequency of monitor in KHz"
+ " (default = 30)");
+module_param(vsync1, int, 0);
+MODULE_PARM_DESC(vsync1, "Minimum vertical frequency of monitor in Hz"
+ " (default = 50)");
+module_param(vsync2, int, 0);
+MODULE_PARM_DESC(vsync2, "Maximum vertical frequency of monitor in Hz"
+ " (default = 60)");
+module_param(accel, bool, 0);
+MODULE_PARM_DESC(accel, "Use Acceleration (BLIT) engine (default = 0)");
+module_param(mtrr, bool, 0);
+MODULE_PARM_DESC(mtrr, "Use MTRR (default = 0)");
+module_param(extvga, bool, 0);
+MODULE_PARM_DESC(extvga, "Enable external VGA connector (default = 0)");
+module_param(sync, bool, 0);
+MODULE_PARM_DESC(sync, "wait for accel engine to finish drawing"
+ " (default = 0)");
+module_param(dcolor, bool, 0);
+MODULE_PARM_DESC(dcolor, "use DirectColor visuals"
+ " (default = 0 = TrueColor)");
+module_param(ddc3, bool, 0);
+MODULE_PARM_DESC(ddc3, "Probe DDC bus 3 (default = 0 = no)");
+module_param(mode_option, charp, 0);
+MODULE_PARM_DESC(mode_option, "Specify initial video mode");
+
+MODULE_AUTHOR("Tony A. Daplas");
+MODULE_DESCRIPTION("Framebuffer device for the Intel 810/815 and"
+ " compatible cards");
+MODULE_LICENSE("GPL");
+
+static void __exit i810fb_exit(void)
+{
+ pci_unregister_driver(&i810fb_driver);
+}
+module_exit(i810fb_exit);
+
+#endif /* MODULE */
+
+module_init(i810fb_init);
diff --git a/drivers/video/fbdev/i810/i810_main.h b/drivers/video/fbdev/i810/i810_main.h
new file mode 100644
index 000000000..7bfaaad1d
--- /dev/null
+++ b/drivers/video/fbdev/i810/i810_main.h
@@ -0,0 +1,69 @@
+/*-*- linux-c -*-
+ * linux/drivers/video/i810fb_main.h -- Intel 810 frame buffer device
+ * main header file
+ *
+ * Copyright (C) 2001 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.
+ */
+
+#ifndef __I810_MAIN_H__
+#define __I810_MAIN_H__
+
+/* Video Timings */
+extern void round_off_xres (u32 *xres);
+extern void round_off_yres (u32 *xres, u32 *yres);
+extern u32 i810_get_watermark (const struct fb_var_screeninfo *var,
+ struct i810fb_par *par);
+extern void i810fb_encode_registers(const struct fb_var_screeninfo *var,
+ struct i810fb_par *par, u32 xres, u32 yres);
+extern void i810fb_fill_var_timings(struct fb_var_screeninfo *var);
+
+/* Accelerated Functions */
+extern void i810fb_fillrect (struct fb_info *p,
+ const struct fb_fillrect *rect);
+extern void i810fb_copyarea (struct fb_info *p,
+ const struct fb_copyarea *region);
+extern void i810fb_imageblit(struct fb_info *p, const struct fb_image *image);
+extern int i810fb_sync (struct fb_info *p);
+
+extern void i810fb_init_ringbuffer(struct fb_info *info);
+extern void i810fb_load_front (u32 offset, struct fb_info *info);
+
+#ifdef CONFIG_FB_I810_I2C
+/* I2C */
+extern int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid,
+ int conn);
+extern void i810_create_i2c_busses(struct i810fb_par *par);
+extern void i810_delete_i2c_busses(struct i810fb_par *par);
+#else
+static inline int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid,
+ int conn)
+{
+ return 1;
+}
+static inline void i810_create_i2c_busses(struct i810fb_par *par) { }
+static inline void i810_delete_i2c_busses(struct i810fb_par *par) { }
+#endif
+
+/* Conditionals */
+#ifdef CONFIG_X86
+static inline void flush_cache(void)
+{
+ asm volatile ("wbinvd":::"memory");
+}
+#else
+#define flush_cache() do { } while(0)
+#endif
+
+#ifdef CONFIG_FB_I810_GTF
+#define IS_DVT (0)
+#else
+#define IS_DVT (1)
+#endif
+
+#endif /* __I810_MAIN_H__ */
diff --git a/drivers/video/fbdev/i810/i810_regs.h b/drivers/video/fbdev/i810/i810_regs.h
new file mode 100644
index 000000000..91c6bd9d0
--- /dev/null
+++ b/drivers/video/fbdev/i810/i810_regs.h
@@ -0,0 +1,275 @@
+/*-*- linux-c -*-
+ * linux/drivers/video/i810_regs.h -- Intel 810/815 Register List
+ *
+ * Copyright (C) 2001 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.
+ */
+
+
+/*
+ * Intel 810 Chipset Family PRM 15 3.1
+ * GC Register Memory Address Map
+ *
+ * Based on:
+ * Intel (R) 810 Chipset Family
+ * Programmer s Reference Manual
+ * November 1999
+ * Revision 1.0
+ * Order Number: 298026-001 R
+ *
+ * All GC registers are memory-mapped. In addition, the VGA and extended VGA registers
+ * are I/O mapped.
+ */
+
+#ifndef __I810_REGS_H__
+#define __I810_REGS_H__
+
+/* Instruction and Interrupt Control Registers (01000h 02FFFh) */
+#define FENCE 0x02000
+#define PGTBL_CTL 0x02020
+#define PGTBL_ER 0x02024
+#define LRING 0x02030
+#define IRING 0x02040
+#define HWS_PGA 0x02080
+#define IPEIR 0x02088
+#define IPEHR 0x0208C
+#define INSTDONE 0x02090
+#define NOPID 0x02094
+#define HWSTAM 0x02098
+#define IER 0x020A0
+#define IIR 0x020A4
+#define IMR 0x020A8
+#define ISR 0x020AC
+#define EIR 0x020B0
+#define EMR 0x020B4
+#define ESR 0x020B8
+#define INSTPM 0x020C0
+#define INSTPS 0x020C4
+#define BBP_PTR 0x020C8
+#define ABB_SRT 0x020CC
+#define ABB_END 0x020D0
+#define DMA_FADD 0x020D4
+#define FW_BLC 0x020D8
+#define MEM_MODE 0x020DC
+
+/* Memory Control Registers (03000h 03FFFh) */
+#define DRT 0x03000
+#define DRAMCL 0x03001
+#define DRAMCH 0x03002
+
+
+/* Span Cursor Registers (04000h 04FFFh) */
+#define UI_SC_CTL 0x04008
+
+/* I/O Control Registers (05000h 05FFFh) */
+#define HVSYNC 0x05000
+#define GPIOA 0x05010
+#define GPIOB 0x05014
+#define GPIOC 0x0501C
+
+/* Clock Control and Power Management Registers (06000h 06FFFh) */
+#define DCLK_0D 0x06000
+#define DCLK_1D 0x06004
+#define DCLK_2D 0x06008
+#define LCD_CLKD 0x0600C
+#define DCLK_0DS 0x06010
+#define PWR_CLKC 0x06014
+
+/* Graphics Translation Table Range Definition (10000h 1FFFFh) */
+#define GTT 0x10000
+
+/* Overlay Registers (30000h 03FFFFh) */
+#define OVOADDR 0x30000
+#define DOVOSTA 0x30008
+#define GAMMA 0x30010
+#define OBUF_0Y 0x30100
+#define OBUF_1Y 0x30104
+#define OBUF_0U 0x30108
+#define OBUF_0V 0x3010C
+#define OBUF_1U 0x30110
+#define OBUF_1V 0x30114
+#define OVOSTRIDE 0x30118
+#define YRGB_VPH 0x3011C
+#define UV_VPH 0x30120
+#define HORZ_PH 0x30124
+#define INIT_PH 0x30128
+#define DWINPOS 0x3012C
+#define DWINSZ 0x30130
+#define SWID 0x30134
+#define SWIDQW 0x30138
+#define SHEIGHT 0x3013F
+#define YRGBSCALE 0x30140
+#define UVSCALE 0x30144
+#define OVOCLRCO 0x30148
+#define OVOCLRC1 0x3014C
+#define DCLRKV 0x30150
+#define DLCRKM 0x30154
+#define SCLRKVH 0x30158
+#define SCLRKVL 0x3015C
+#define SCLRKM 0x30160
+#define OVOCONF 0x30164
+#define OVOCMD 0x30168
+#define AWINPOS 0x30170
+#define AWINZ 0x30174
+
+/* BLT Engine Status (40000h 4FFFFh) (Software Debug) */
+#define BR00 0x40000
+#define BRO1 0x40004
+#define BR02 0x40008
+#define BR03 0x4000C
+#define BR04 0x40010
+#define BR05 0x40014
+#define BR06 0x40018
+#define BR07 0x4001C
+#define BR08 0x40020
+#define BR09 0x40024
+#define BR10 0x40028
+#define BR11 0x4002C
+#define BR12 0x40030
+#define BR13 0x40034
+#define BR14 0x40038
+#define BR15 0x4003C
+#define BR16 0x40040
+#define BR17 0x40044
+#define BR18 0x40048
+#define BR19 0x4004C
+#define SSLADD 0x40074
+#define DSLH 0x40078
+#define DSLRADD 0x4007C
+
+
+/* LCD/TV-Out and HW DVD Registers (60000h 6FFFFh) */
+/* LCD/TV-Out */
+#define HTOTAL 0x60000
+#define HBLANK 0x60004
+#define HSYNC 0x60008
+#define VTOTAL 0x6000C
+#define VBLANK 0x60010
+#define VSYNC 0x60014
+#define LCDTV_C 0x60018
+#define OVRACT 0x6001C
+#define BCLRPAT 0x60020
+
+/* Display and Cursor Control Registers (70000h 7FFFFh) */
+#define DISP_SL 0x70000
+#define DISP_SLC 0x70004
+#define PIXCONF 0x70008
+#define PIXCONF1 0x70009
+#define BLTCNTL 0x7000C
+#define SWF 0x70014
+#define DPLYBASE 0x70020
+#define DPLYSTAS 0x70024
+#define CURCNTR 0x70080
+#define CURBASE 0x70084
+#define CURPOS 0x70088
+
+
+/* VGA Registers */
+
+/* SMRAM Registers */
+#define SMRAM 0x10
+
+/* Graphics Control Registers */
+#define GR_INDEX 0x3CE
+#define GR_DATA 0x3CF
+
+#define GR10 0x10
+#define GR11 0x11
+
+/* CRT Controller Registers */
+#define CR_INDEX_MDA 0x3B4
+#define CR_INDEX_CGA 0x3D4
+#define CR_DATA_MDA 0x3B5
+#define CR_DATA_CGA 0x3D5
+
+#define CR30 0x30
+#define CR31 0x31
+#define CR32 0x32
+#define CR33 0x33
+#define CR35 0x35
+#define CR39 0x39
+#define CR40 0x40
+#define CR41 0x41
+#define CR42 0x42
+#define CR70 0x70
+#define CR80 0x80
+#define CR81 0x82
+
+/* Extended VGA Registers */
+
+/* General Control and Status Registers */
+#define ST00 0x3C2
+#define ST01_MDA 0x3BA
+#define ST01_CGA 0x3DA
+#define FRC_READ 0x3CA
+#define FRC_WRITE_MDA 0x3BA
+#define FRC_WRITE_CGA 0x3DA
+#define MSR_READ 0x3CC
+#define MSR_WRITE 0x3C2
+
+/* Sequencer Registers */
+#define SR_INDEX 0x3C4
+#define SR_DATA 0x3C5
+
+#define SR01 0x01
+#define SR02 0x02
+#define SR03 0x03
+#define SR04 0x04
+#define SR07 0x07
+
+/* Graphics Controller Registers */
+#define GR00 0x00
+#define GR01 0x01
+#define GR02 0x02
+#define GR03 0x03
+#define GR04 0x04
+#define GR05 0x05
+#define GR06 0x06
+#define GR07 0x07
+#define GR08 0x08
+
+/* Attribute Controller Registers */
+#define ATTR_WRITE 0x3C0
+#define ATTR_READ 0x3C1
+
+/* VGA Color Palette Registers */
+
+/* CLUT */
+#define CLUT_DATA 0x3C9 /* DACDATA */
+#define CLUT_INDEX_READ 0x3C7 /* DACRX */
+#define CLUT_INDEX_WRITE 0x3C8 /* DACWX */
+#define DACMASK 0x3C6
+
+/* CRT Controller Registers */
+#define CR00 0x00
+#define CR01 0x01
+#define CR02 0x02
+#define CR03 0x03
+#define CR04 0x04
+#define CR05 0x05
+#define CR06 0x06
+#define CR07 0x07
+#define CR08 0x08
+#define CR09 0x09
+#define CR0A 0x0A
+#define CR0B 0x0B
+#define CR0C 0x0C
+#define CR0D 0x0D
+#define CR0E 0x0E
+#define CR0F 0x0F
+#define CR10 0x10
+#define CR11 0x11
+#define CR12 0x12
+#define CR13 0x13
+#define CR14 0x14
+#define CR15 0x15
+#define CR16 0x16
+#define CR17 0x17
+#define CR18 0x18
+
+#endif /* __I810_REGS_H__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 18:02:09 +0000