chipsfb.c
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上传日期:2013-04-10
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文件大小:19k
- /*
- * drivers/video/chipsfb.c -- frame buffer device for
- * Chips & Technologies 65550 chip.
- *
- * Copyright (C) 1998 Paul Mackerras
- *
- * This file is derived from the Powermac "chips" driver:
- * Copyright (C) 1997 Fabio Riccardi.
- * And from the frame buffer device for Open Firmware-initialized devices:
- * Copyright (C) 1997 Geert Uytterhoeven.
- *
- * 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/config.h>
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/errno.h>
- #include <linux/string.h>
- #include <linux/mm.h>
- #include <linux/tty.h>
- #include <linux/slab.h>
- #include <linux/vmalloc.h>
- #include <linux/delay.h>
- #include <linux/interrupt.h>
- #include <linux/fb.h>
- #include <linux/selection.h>
- #include <linux/init.h>
- #include <linux/pci.h>
- #include <asm/io.h>
- #ifdef CONFIG_FB_COMPAT_XPMAC
- #include <asm/vc_ioctl.h>
- #include <asm/pci-bridge.h>
- #endif
- #ifdef CONFIG_PMAC_BACKLIGHT
- #include <asm/backlight.h>
- #endif
- #ifdef CONFIG_PMAC_PBOOK
- #include <linux/adb.h>
- #include <linux/pmu.h>
- #endif
- #include <video/fbcon.h>
- #include <video/fbcon-cfb8.h>
- #include <video/fbcon-cfb16.h>
- #include <video/macmodes.h>
- static int currcon = 0;
- struct fb_info_chips {
- struct fb_info info;
- struct fb_fix_screeninfo fix;
- struct fb_var_screeninfo var;
- struct display disp;
- struct {
- __u8 red, green, blue;
- } palette[256];
- struct pci_dev *pdev;
- unsigned long frame_buffer_phys;
- __u8 *frame_buffer;
- unsigned long blitter_regs_phys;
- __u32 *blitter_regs;
- unsigned long blitter_data_phys;
- __u8 *blitter_data;
- struct fb_info_chips *next;
- #ifdef CONFIG_PMAC_PBOOK
- unsigned char *save_framebuffer;
- #endif
- #ifdef FBCON_HAS_CFB16
- u16 fbcon_cfb16_cmap[16];
- #endif
- };
- #define write_ind(num, val, ap, dp) do {
- outb((num), (ap)); outb((val), (dp));
- } while (0)
- #define read_ind(num, var, ap, dp) do {
- outb((num), (ap)); var = inb((dp));
- } while (0)
- /* extension registers */
- #define write_xr(num, val) write_ind(num, val, 0x3d6, 0x3d7)
- #define read_xr(num, var) read_ind(num, var, 0x3d6, 0x3d7)
- /* flat panel registers */
- #define write_fr(num, val) write_ind(num, val, 0x3d0, 0x3d1)
- #define read_fr(num, var) read_ind(num, var, 0x3d0, 0x3d1)
- /* CRTC registers */
- #define write_cr(num, val) write_ind(num, val, 0x3d4, 0x3d5)
- #define read_cr(num, var) read_ind(num, var, 0x3d4, 0x3d5)
- /* graphics registers */
- #define write_gr(num, val) write_ind(num, val, 0x3ce, 0x3cf)
- #define read_gr(num, var) read_ind(num, var, 0x3ce, 0x3cf)
- /* sequencer registers */
- #define write_sr(num, val) write_ind(num, val, 0x3c4, 0x3c5)
- #define read_sr(num, var) read_ind(num, var, 0x3c4, 0x3c5)
- /* attribute registers - slightly strange */
- #define write_ar(num, val) do {
- inb(0x3da); write_ind(num, val, 0x3c0, 0x3c0);
- } while (0)
- #define read_ar(num, var) do {
- inb(0x3da); read_ind(num, var, 0x3c0, 0x3c1);
- } while (0)
- static struct fb_info_chips *all_chips;
- #ifdef CONFIG_PMAC_PBOOK
- int chips_sleep_notify(struct pmu_sleep_notifier *self, int when);
- static struct pmu_sleep_notifier chips_sleep_notifier = {
- chips_sleep_notify, SLEEP_LEVEL_VIDEO,
- };
- #endif
- /*
- * Exported functions
- */
- int chips_init(void);
- static void chips_pci_init(struct pci_dev *dp);
- static int chips_get_fix(struct fb_fix_screeninfo *fix, int con,
- struct fb_info *info);
- static int chips_get_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info);
- static int chips_set_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info);
- static int chips_get_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info);
- static int chips_set_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info);
- static struct fb_ops chipsfb_ops = {
- owner: THIS_MODULE,
- fb_get_fix: chips_get_fix,
- fb_get_var: chips_get_var,
- fb_set_var: chips_set_var,
- fb_get_cmap: chips_get_cmap,
- fb_set_cmap: chips_set_cmap,
- };
- static int chipsfb_getcolreg(u_int regno, u_int *red, u_int *green,
- u_int *blue, u_int *transp, struct fb_info *info);
- static int chipsfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info);
- static void do_install_cmap(int con, struct fb_info *info);
- static void chips_set_bitdepth(struct fb_info_chips *p, struct display* disp, int con, int bpp);
- static int chips_get_fix(struct fb_fix_screeninfo *fix, int con,
- struct fb_info *info)
- {
- struct fb_info_chips *cp = (struct fb_info_chips *) info;
- *fix = cp->fix;
- return 0;
- }
- static int chips_get_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info)
- {
- struct fb_info_chips *cp = (struct fb_info_chips *) info;
- *var = cp->var;
- return 0;
- }
- static int chips_set_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info)
- {
- struct fb_info_chips *cp = (struct fb_info_chips *) info;
- struct display *disp = (con >= 0)? &fb_display[con]: &cp->disp;
- if (var->xres > 800 || var->yres > 600
- || var->xres_virtual > 800 || var->yres_virtual > 600
- || (var->bits_per_pixel != 8 && var->bits_per_pixel != 16)
- || var->nonstd
- || (var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
- return -EINVAL;
- if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW &&
- var->bits_per_pixel != disp->var.bits_per_pixel) {
- chips_set_bitdepth(cp, disp, con, var->bits_per_pixel);
- }
- return 0;
- }
- static int chips_get_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info)
- {
- if (con == currcon) /* current console? */
- return fb_get_cmap(cmap, kspc, chipsfb_getcolreg, info);
- if (fb_display[con].cmap.len) /* non default colormap? */
- fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
- else {
- int size = fb_display[con].var.bits_per_pixel == 16 ? 32 : 256;
- fb_copy_cmap(fb_default_cmap(size), cmap, kspc ? 0 : 2);
- }
- return 0;
- }
- static int chips_set_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info)
- {
- int err;
- if (!fb_display[con].cmap.len) { /* no colormap allocated? */
- int size = fb_display[con].var.bits_per_pixel == 16 ? 32 : 256;
- if ((err = fb_alloc_cmap(&fb_display[con].cmap, size, 0)))
- return err;
- }
- if (con == currcon) /* current console? */
- return fb_set_cmap(cmap, kspc, chipsfb_setcolreg, info);
- else
- fb_copy_cmap(cmap, &fb_display[con].cmap, kspc ? 0 : 1);
- return 0;
- }
- static int chipsfbcon_switch(int con, struct fb_info *info)
- {
- struct fb_info_chips *p = (struct fb_info_chips *) info;
- int new_bpp, old_bpp;
- /* Do we have to save the colormap? */
- if (fb_display[currcon].cmap.len)
- fb_get_cmap(&fb_display[currcon].cmap, 1, chipsfb_getcolreg, info);
- new_bpp = fb_display[con].var.bits_per_pixel;
- old_bpp = fb_display[currcon].var.bits_per_pixel;
- currcon = con;
- if (new_bpp != old_bpp)
- chips_set_bitdepth(p, &fb_display[con], con, new_bpp);
-
- do_install_cmap(con, info);
- return 0;
- }
- static int chipsfb_updatevar(int con, struct fb_info *info)
- {
- return 0;
- }
- static void chipsfb_blank(int blank, struct fb_info *info)
- {
- struct fb_info_chips *p = (struct fb_info_chips *) info;
- int i;
- // used to disable backlight only for blank > 1, but it seems
- // useful at blank = 1 too (saves battery, extends backlight life)
- if (blank) {
- #ifdef CONFIG_PMAC_BACKLIGHT
- set_backlight_enable(0);
- #endif /* CONFIG_PMAC_BACKLIGHT */
- /* get the palette from the chip */
- for (i = 0; i < 256; ++i) {
- outb(i, 0x3c7);
- udelay(1);
- p->palette[i].red = inb(0x3c9);
- p->palette[i].green = inb(0x3c9);
- p->palette[i].blue = inb(0x3c9);
- }
- for (i = 0; i < 256; ++i) {
- outb(i, 0x3c8);
- udelay(1);
- outb(0, 0x3c9);
- outb(0, 0x3c9);
- outb(0, 0x3c9);
- }
- } else {
- #ifdef CONFIG_PMAC_BACKLIGHT
- set_backlight_enable(1);
- #endif /* CONFIG_PMAC_BACKLIGHT */
- for (i = 0; i < 256; ++i) {
- outb(i, 0x3c8);
- udelay(1);
- outb(p->palette[i].red, 0x3c9);
- outb(p->palette[i].green, 0x3c9);
- outb(p->palette[i].blue, 0x3c9);
- }
- }
- }
- static int chipsfb_getcolreg(u_int regno, u_int *red, u_int *green,
- u_int *blue, u_int *transp, struct fb_info *info)
- {
- struct fb_info_chips *p = (struct fb_info_chips *) info;
- if (regno > 255)
- return 1;
- *red = (p->palette[regno].red<<8) | p->palette[regno].red;
- *green = (p->palette[regno].green<<8) | p->palette[regno].green;
- *blue = (p->palette[regno].blue<<8) | p->palette[regno].blue;
- *transp = 0;
- return 0;
- }
- static int chipsfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info)
- {
- struct fb_info_chips *p = (struct fb_info_chips *) info;
- if (regno > 255)
- return 1;
- red >>= 8;
- green >>= 8;
- blue >>= 8;
- p->palette[regno].red = red;
- p->palette[regno].green = green;
- p->palette[regno].blue = blue;
- outb(regno, 0x3c8);
- udelay(1);
- outb(red, 0x3c9);
- outb(green, 0x3c9);
- outb(blue, 0x3c9);
- #ifdef FBCON_HAS_CFB16
- if (regno < 16)
- p->fbcon_cfb16_cmap[regno] = ((red & 0xf8) << 7)
- | ((green & 0xf8) << 2) | ((blue & 0xf8) >> 3);
- #endif
- return 0;
- }
- static void do_install_cmap(int con, struct fb_info *info)
- {
- if (con != currcon)
- return;
- if (fb_display[con].cmap.len)
- fb_set_cmap(&fb_display[con].cmap, 1, chipsfb_setcolreg, info);
- else {
- int size = fb_display[con].var.bits_per_pixel == 16 ? 32 : 256;
- fb_set_cmap(fb_default_cmap(size), 1, chipsfb_setcolreg, info);
- }
- }
- static void chips_set_bitdepth(struct fb_info_chips *p, struct display* disp, int con, int bpp)
- {
- int err;
- struct fb_fix_screeninfo* fix = &p->fix;
- struct fb_var_screeninfo* var = &p->var;
-
- if (bpp == 16) {
- if (con == currcon) {
- write_cr(0x13, 200); // Set line length (doublewords)
- write_xr(0x81, 0x14); // 15 bit (555) color mode
- write_xr(0x82, 0x00); // Disable palettes
- write_xr(0x20, 0x10); // 16 bit blitter mode
- }
- fix->line_length = 800*2;
- fix->visual = FB_VISUAL_TRUECOLOR;
- var->red.offset = 10;
- var->green.offset = 5;
- var->blue.offset = 0;
- var->red.length = var->green.length = var->blue.length = 5;
-
- #ifdef FBCON_HAS_CFB16
- disp->dispsw = &fbcon_cfb16;
- disp->dispsw_data = p->fbcon_cfb16_cmap;
- #else
- disp->dispsw = &fbcon_dummy;
- #endif
- } else if (bpp == 8) {
- if (con == currcon) {
- write_cr(0x13, 100); // Set line length (doublewords)
- write_xr(0x81, 0x12); // 8 bit color mode
- write_xr(0x82, 0x08); // Graphics gamma enable
- write_xr(0x20, 0x00); // 8 bit blitter mode
- }
- fix->line_length = 800;
- fix->visual = FB_VISUAL_PSEUDOCOLOR;
- var->red.offset = var->green.offset = var->blue.offset = 0;
- var->red.length = var->green.length = var->blue.length = 8;
-
- #ifdef FBCON_HAS_CFB8
- disp->dispsw = &fbcon_cfb8;
- #else
- disp->dispsw = &fbcon_dummy;
- #endif
- }
- var->bits_per_pixel = bpp;
- disp->line_length = p->fix.line_length;
- disp->visual = fix->visual;
- disp->var = *var;
- #ifdef CONFIG_FB_COMPAT_XPMAC
- display_info.depth = bpp;
- display_info.pitch = fix->line_length;
- #endif
-
- if (p->info.changevar)
- (*p->info.changevar)(con);
- if ((err = fb_alloc_cmap(&disp->cmap, 0, 0)))
- return;
- do_install_cmap(con, (struct fb_info *)p);
- }
- struct chips_init_reg {
- unsigned char addr;
- unsigned char data;
- };
- #define N_ELTS(x) (sizeof(x) / sizeof(x[0]))
- static struct chips_init_reg chips_init_sr[] = {
- { 0x00, 0x03 },
- { 0x01, 0x01 },
- { 0x02, 0x0f },
- { 0x04, 0x0e }
- };
- static struct chips_init_reg chips_init_gr[] = {
- { 0x05, 0x00 },
- { 0x06, 0x0d },
- { 0x08, 0xff }
- };
- static struct chips_init_reg chips_init_ar[] = {
- { 0x10, 0x01 },
- { 0x12, 0x0f },
- { 0x13, 0x00 }
- };
- static struct chips_init_reg chips_init_cr[] = {
- { 0x00, 0x7f },
- { 0x01, 0x63 },
- { 0x02, 0x63 },
- { 0x03, 0x83 },
- { 0x04, 0x66 },
- { 0x05, 0x10 },
- { 0x06, 0x72 },
- { 0x07, 0x3e },
- { 0x08, 0x00 },
- { 0x09, 0x40 },
- { 0x0c, 0x00 },
- { 0x0d, 0x00 },
- { 0x10, 0x59 },
- { 0x11, 0x0d },
- { 0x12, 0x57 },
- { 0x13, 0x64 },
- { 0x14, 0x00 },
- { 0x15, 0x57 },
- { 0x16, 0x73 },
- { 0x17, 0xe3 },
- { 0x18, 0xff },
- { 0x30, 0x02 },
- { 0x31, 0x02 },
- { 0x32, 0x02 },
- { 0x33, 0x02 },
- { 0x40, 0x00 },
- { 0x41, 0x00 },
- { 0x40, 0x80 }
- };
- static struct chips_init_reg chips_init_fr[] = {
- { 0x01, 0x02 },
- { 0x03, 0x08 },
- { 0x04, 0x81 },
- { 0x05, 0x21 },
- { 0x08, 0x0c },
- { 0x0a, 0x74 },
- { 0x0b, 0x11 },
- { 0x10, 0x0c },
- { 0x11, 0xe0 },
- /* { 0x12, 0x40 }, -- 3400 needs 40, 2400 needs 48, no way to tell */
- { 0x20, 0x63 },
- { 0x21, 0x68 },
- { 0x22, 0x19 },
- { 0x23, 0x7f },
- { 0x24, 0x68 },
- { 0x26, 0x00 },
- { 0x27, 0x0f },
- { 0x30, 0x57 },
- { 0x31, 0x58 },
- { 0x32, 0x0d },
- { 0x33, 0x72 },
- { 0x34, 0x02 },
- { 0x35, 0x22 },
- { 0x36, 0x02 },
- { 0x37, 0x00 }
- };
- static struct chips_init_reg chips_init_xr[] = {
- { 0xce, 0x00 }, /* set default memory clock */
- { 0xcc, 0x43 }, /* memory clock ratio */
- { 0xcd, 0x18 },
- { 0xce, 0xa1 },
- { 0xc8, 0x84 },
- { 0xc9, 0x0a },
- { 0xca, 0x00 },
- { 0xcb, 0x20 },
- { 0xcf, 0x06 },
- { 0xd0, 0x0e },
- { 0x09, 0x01 },
- { 0x0a, 0x02 },
- { 0x0b, 0x01 },
- { 0x20, 0x00 },
- { 0x40, 0x03 },
- { 0x41, 0x01 },
- { 0x42, 0x00 },
- { 0x80, 0x82 },
- { 0x81, 0x12 },
- { 0x82, 0x08 },
- { 0xa0, 0x00 },
- { 0xa8, 0x00 }
- };
- static void __init chips_hw_init(struct fb_info_chips *p)
- {
- int i;
- for (i = 0; i < N_ELTS(chips_init_xr); ++i)
- write_xr(chips_init_xr[i].addr, chips_init_xr[i].data);
- outb(0x29, 0x3c2); /* set misc output reg */
- for (i = 0; i < N_ELTS(chips_init_sr); ++i)
- write_sr(chips_init_sr[i].addr, chips_init_sr[i].data);
- for (i = 0; i < N_ELTS(chips_init_gr); ++i)
- write_gr(chips_init_gr[i].addr, chips_init_gr[i].data);
- for (i = 0; i < N_ELTS(chips_init_ar); ++i)
- write_ar(chips_init_ar[i].addr, chips_init_ar[i].data);
- for (i = 0; i < N_ELTS(chips_init_cr); ++i)
- write_cr(chips_init_cr[i].addr, chips_init_cr[i].data);
- for (i = 0; i < N_ELTS(chips_init_fr); ++i)
- write_fr(chips_init_fr[i].addr, chips_init_fr[i].data);
- }
- static void __init init_chips(struct fb_info_chips *p)
- {
- int i;
- strcpy(p->fix.id, "C&T 65550");
- p->fix.smem_start = p->frame_buffer_phys;
- // FIXME: Assumes 1MB frame buffer, but 65550 supports 1MB or 2MB.
- // * "3500" PowerBook G3 (the original PB G3) has 2MB.
- // * 2400 has 1MB composed of 2 Mitsubishi M5M4V4265CTP DRAM chips.
- // Motherboard actually supports 2MB -- there are two blank locations
- // for a second pair of DRAMs. (Thanks, Apple!)
- // * 3400 has 1MB (I think). Don't know if it's expandable.
- // -- Tim Seufert
- p->fix.smem_len = 0x100000; // 1MB
- p->fix.type = FB_TYPE_PACKED_PIXELS;
- p->fix.visual = FB_VISUAL_PSEUDOCOLOR;
- p->fix.line_length = 800;
- p->var.xres = 800;
- p->var.yres = 600;
- p->var.xres_virtual = 800;
- p->var.yres_virtual = 600;
- p->var.bits_per_pixel = 8;
- p->var.red.length = p->var.green.length = p->var.blue.length = 8;
- p->var.height = p->var.width = -1;
- p->var.vmode = FB_VMODE_NONINTERLACED;
- p->var.pixclock = 10000;
- p->var.left_margin = p->var.right_margin = 16;
- p->var.upper_margin = p->var.lower_margin = 16;
- p->var.hsync_len = p->var.vsync_len = 8;
- p->disp.var = p->var;
- p->disp.cmap.red = NULL;
- p->disp.cmap.green = NULL;
- p->disp.cmap.blue = NULL;
- p->disp.cmap.transp = NULL;
- p->disp.screen_base = p->frame_buffer;
- p->disp.visual = p->fix.visual;
- p->disp.type = p->fix.type;
- p->disp.type_aux = p->fix.type_aux;
- p->disp.line_length = p->fix.line_length;
- p->disp.can_soft_blank = 1;
- p->disp.dispsw = &fbcon_cfb8;
- p->disp.scrollmode = SCROLL_YREDRAW;
- strcpy(p->info.modename, p->fix.id);
- p->info.node = -1;
- p->info.fbops = &chipsfb_ops;
- p->info.disp = &p->disp;
- p->info.fontname[0] = 0;
- p->info.changevar = NULL;
- p->info.switch_con = &chipsfbcon_switch;
- p->info.updatevar = &chipsfb_updatevar;
- p->info.blank = &chipsfb_blank;
- p->info.flags = FBINFO_FLAG_DEFAULT;
- for (i = 0; i < 16; ++i) {
- int j = color_table[i];
- p->palette[i].red = default_red[j];
- p->palette[i].green = default_grn[j];
- p->palette[i].blue = default_blu[j];
- }
- if (register_framebuffer(&p->info) < 0) {
- kfree(p);
- return;
- }
- printk("fb%d: Chips 65550 frame buffer (%dK RAM detected)n",
- GET_FB_IDX(p->info.node), p->fix.smem_len / 1024);
- chips_hw_init(p);
- #ifdef CONFIG_FB_COMPAT_XPMAC
- if (!console_fb_info) {
- unsigned long iobase;
- display_info.height = p->var.yres;
- display_info.width = p->var.xres;
- display_info.depth = 8;
- display_info.pitch = p->fix.line_length;
- display_info.mode = VMODE_800_600_60;
- strncpy(display_info.name, "chips65550",
- sizeof(display_info.name));
- display_info.fb_address = p->frame_buffer_phys;
- iobase = pci_bus_io_base_phys(p->pdev->bus->number);
- display_info.cmap_adr_address = iobase + 0x3c8;
- display_info.cmap_data_address = iobase + 0x3c9;
- display_info.disp_reg_address = p->blitter_regs_phys;
- console_fb_info = &p->info;
- }
- #endif /* CONFIG_FB_COMPAT_XPMAC */
- #ifdef CONFIG_PMAC_PBOOK
- if (all_chips == NULL)
- pmu_register_sleep_notifier(&chips_sleep_notifier);
- #endif /* CONFIG_PMAC_PBOOK */
- p->next = all_chips;
- all_chips = p;
- }
- int __init chips_init(void)
- {
- struct pci_dev *dp = NULL;
- while ((dp = pci_find_device(PCI_VENDOR_ID_CT,
- PCI_DEVICE_ID_CT_65550, dp)) != NULL)
- if ((dp->class >> 16) == PCI_BASE_CLASS_DISPLAY)
- chips_pci_init(dp);
- return all_chips? 0: -ENODEV;
- }
- static void __init chips_pci_init(struct pci_dev *dp)
- {
- struct fb_info_chips *p;
- unsigned long addr, size;
- unsigned short cmd;
- if ((dp->resource[0].flags & IORESOURCE_MEM) == 0)
- return;
- addr = dp->resource[0].start;
- size = dp->resource[0].end + 1 - addr;
- if (addr == 0)
- return;
- p = kmalloc(sizeof(*p), GFP_ATOMIC);
- if (p == 0)
- return;
- memset(p, 0, sizeof(*p));
- if (!request_mem_region(addr, size, "chipsfb")) {
- kfree(p);
- return;
- }
- #ifdef __BIG_ENDIAN
- addr += 0x800000; // Use big-endian aperture
- #endif
- p->pdev = dp;
- p->frame_buffer_phys = addr;
- p->frame_buffer = __ioremap(addr, 0x200000, _PAGE_NO_CACHE);
- p->blitter_regs_phys = addr + 0x400000;
- p->blitter_regs = ioremap(addr + 0x400000, 0x1000);
- p->blitter_data_phys = addr + 0x410000;
- p->blitter_data = ioremap(addr + 0x410000, 0x10000);
- /* we should use pci_enable_device here, but,
- the device doesn't declare its I/O ports in its BARs
- so pci_enable_device won't turn on I/O responses */
- pci_read_config_word(dp, PCI_COMMAND, &cmd);
- cmd |= 3; /* enable memory and IO space */
- pci_write_config_word(dp, PCI_COMMAND, cmd);
- /* Clear the entire framebuffer */
- memset(p->frame_buffer, 0, 0x100000);
- #ifdef CONFIG_PMAC_BACKLIGHT
- /* turn on the backlight */
- set_backlight_enable(1);
- #endif /* CONFIG_PMAC_BACKLIGHT */
- init_chips(p);
- }
- #ifdef CONFIG_PMAC_PBOOK
- /*
- * Save the contents of the frame buffer when we go to sleep,
- * and restore it when we wake up again.
- */
- int
- chips_sleep_notify(struct pmu_sleep_notifier *self, int when)
- {
- struct fb_info_chips *p;
- for (p = all_chips; p != NULL; p = p->next) {
- int nb = p->var.yres * p->fix.line_length;
- switch (when) {
- case PBOOK_SLEEP_REQUEST:
- p->save_framebuffer = vmalloc(nb);
- if (p->save_framebuffer == NULL)
- return PBOOK_SLEEP_REFUSE;
- break;
- case PBOOK_SLEEP_REJECT:
- if (p->save_framebuffer) {
- vfree(p->save_framebuffer);
- p->save_framebuffer = 0;
- }
- break;
- case PBOOK_SLEEP_NOW:
- chipsfb_blank(1, (struct fb_info *)p);
- if (p->save_framebuffer)
- memcpy(p->save_framebuffer,
- p->frame_buffer, nb);
- break;
- case PBOOK_WAKE:
- if (p->save_framebuffer) {
- memcpy(p->frame_buffer,
- p->save_framebuffer, nb);
- vfree(p->save_framebuffer);
- p->save_framebuffer = 0;
- }
- chipsfb_blank(0, (struct fb_info *)p);
- break;
- }
- }
- return PBOOK_SLEEP_OK;
- }
- #endif /* CONFIG_PMAC_PBOOK */
- MODULE_LICENSE("GPL");