diff options
Diffstat (limited to 'drivers/video/geode/gxfb_core.c')
| -rw-r--r-- | drivers/video/geode/gxfb_core.c | 547 |
1 files changed, 0 insertions, 547 deletions
diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c deleted file mode 100644 index 1790f14bab15..000000000000 --- a/drivers/video/geode/gxfb_core.c +++ /dev/null @@ -1,547 +0,0 @@ -/* - * Geode GX framebuffer driver. - * - * Copyright (C) 2006 Arcom Control Systems Ltd. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * - * This driver assumes that the BIOS has created a virtual PCI device header - * for the video device. The PCI header is assumed to contain the following - * BARs: - * - * BAR0 - framebuffer memory - * BAR1 - graphics processor registers - * BAR2 - display controller registers - * BAR3 - video processor and flat panel control registers. - * - * 16 MiB of framebuffer memory is assumed to be available. - */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/delay.h> -#include <linux/fb.h> -#include <linux/console.h> -#include <linux/suspend.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/cs5535.h> - -#include "gxfb.h" - -static char *mode_option; -static int vram; -static int vt_switch; - -/* Modes relevant to the GX (taken from modedb.c) */ -static struct fb_videomode gx_modedb[] = { - /* 640x480-60 VESA */ - { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2, - 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 640x480-75 VESA */ - { NULL, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3, - 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 640x480-85 VESA */ - { NULL, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3, - 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 800x600-60 VESA */ - { NULL, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 800x600-75 VESA */ - { NULL, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 800x600-85 VESA */ - { NULL, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1024x768-60 VESA */ - { NULL, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6, - 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1024x768-75 VESA */ - { NULL, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1024x768-85 VESA */ - { NULL, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1280x960-60 VESA */ - { NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1280x960-85 VESA */ - { NULL, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1280x1024-60 VESA */ - { NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1280x1024-75 VESA */ - { NULL, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1280x1024-85 VESA */ - { NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1600x1200-60 VESA */ - { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1600x1200-75 VESA */ - { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, - /* 1600x1200-85 VESA */ - { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, -}; - -#ifdef CONFIG_OLPC -#include <asm/olpc.h> - -static struct fb_videomode gx_dcon_modedb[] = { - /* The only mode the DCON has is 1200x900 */ - { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - FB_VMODE_NONINTERLACED, 0 } -}; - -static void get_modedb(struct fb_videomode **modedb, unsigned int *size) -{ - if (olpc_has_dcon()) { - *modedb = (struct fb_videomode *) gx_dcon_modedb; - *size = ARRAY_SIZE(gx_dcon_modedb); - } else { - *modedb = (struct fb_videomode *) gx_modedb; - *size = ARRAY_SIZE(gx_modedb); - } -} - -#else -static void get_modedb(struct fb_videomode **modedb, unsigned int *size) -{ - *modedb = (struct fb_videomode *) gx_modedb; - *size = ARRAY_SIZE(gx_modedb); -} -#endif - -static int gxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) -{ - if (var->xres > 1600 || var->yres > 1200) - return -EINVAL; - if ((var->xres > 1280 || var->yres > 1024) && var->bits_per_pixel > 16) - return -EINVAL; - - if (var->bits_per_pixel == 32) { - var->red.offset = 16; var->red.length = 8; - var->green.offset = 8; var->green.length = 8; - var->blue.offset = 0; var->blue.length = 8; - } else if (var->bits_per_pixel == 16) { - var->red.offset = 11; var->red.length = 5; - var->green.offset = 5; var->green.length = 6; - var->blue.offset = 0; var->blue.length = 5; - } else if (var->bits_per_pixel == 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; - } else - return -EINVAL; - var->transp.offset = 0; var->transp.length = 0; - - /* Enough video memory? */ - if (gx_line_delta(var->xres, var->bits_per_pixel) * var->yres > info->fix.smem_len) - return -EINVAL; - - /* FIXME: Check timing parameters here? */ - - return 0; -} - -static int gxfb_set_par(struct fb_info *info) -{ - if (info->var.bits_per_pixel > 8) - info->fix.visual = FB_VISUAL_TRUECOLOR; - else - info->fix.visual = FB_VISUAL_PSEUDOCOLOR; - - info->fix.line_length = gx_line_delta(info->var.xres, info->var.bits_per_pixel); - - gx_set_mode(info); - - return 0; -} - -static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf) -{ - chan &= 0xffff; - chan >>= 16 - bf->length; - return chan << bf->offset; -} - -static int gxfb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, - struct fb_info *info) -{ - if (info->var.grayscale) { - /* grayscale = 0.30*R + 0.59*G + 0.11*B */ - red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; - } - - /* Truecolor has hardware independent palette */ - if (info->fix.visual == FB_VISUAL_TRUECOLOR) { - u32 *pal = info->pseudo_palette; - u32 v; - - if (regno >= 16) - return -EINVAL; - - v = chan_to_field(red, &info->var.red); - v |= chan_to_field(green, &info->var.green); - v |= chan_to_field(blue, &info->var.blue); - - pal[regno] = v; - } else { - if (regno >= 256) - return -EINVAL; - - gx_set_hw_palette_reg(info, regno, red, green, blue); - } - - return 0; -} - -static int gxfb_blank(int blank_mode, struct fb_info *info) -{ - return gx_blank_display(info, blank_mode); -} - -static int gxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev) -{ - struct gxfb_par *par = info->par; - int ret; - - ret = pci_enable_device(dev); - if (ret < 0) - return ret; - - ret = pci_request_region(dev, 3, "gxfb (video processor)"); - if (ret < 0) - return ret; - par->vid_regs = pci_ioremap_bar(dev, 3); - if (!par->vid_regs) - return -ENOMEM; - - ret = pci_request_region(dev, 2, "gxfb (display controller)"); - if (ret < 0) - return ret; - par->dc_regs = pci_ioremap_bar(dev, 2); - if (!par->dc_regs) - return -ENOMEM; - - ret = pci_request_region(dev, 1, "gxfb (graphics processor)"); - if (ret < 0) - return ret; - par->gp_regs = pci_ioremap_bar(dev, 1); - - if (!par->gp_regs) - return -ENOMEM; - - ret = pci_request_region(dev, 0, "gxfb (framebuffer)"); - if (ret < 0) - return ret; - - info->fix.smem_start = pci_resource_start(dev, 0); - info->fix.smem_len = vram ? vram : gx_frame_buffer_size(); - info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); - if (!info->screen_base) - return -ENOMEM; - - /* Set the 16MiB aligned base address of the graphics memory region - * in the display controller */ - - write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000); - - dev_info(&dev->dev, "%d KiB of video memory at 0x%lx\n", - info->fix.smem_len / 1024, info->fix.smem_start); - - return 0; -} - -static struct fb_ops gxfb_ops = { - .owner = THIS_MODULE, - .fb_check_var = gxfb_check_var, - .fb_set_par = gxfb_set_par, - .fb_setcolreg = gxfb_setcolreg, - .fb_blank = gxfb_blank, - /* No HW acceleration for now. */ - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, -}; - -static struct fb_info *gxfb_init_fbinfo(struct device *dev) -{ - struct gxfb_par *par; - struct fb_info *info; - - /* Alloc enough space for the pseudo palette. */ - info = framebuffer_alloc(sizeof(struct gxfb_par) + sizeof(u32) * 16, - dev); - if (!info) - return NULL; - - par = info->par; - - strcpy(info->fix.id, "Geode GX"); - - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.type_aux = 0; - info->fix.xpanstep = 0; - info->fix.ypanstep = 0; - info->fix.ywrapstep = 0; - info->fix.accel = FB_ACCEL_NONE; - - info->var.nonstd = 0; - info->var.activate = FB_ACTIVATE_NOW; - info->var.height = -1; - info->var.width = -1; - info->var.accel_flags = 0; - info->var.vmode = FB_VMODE_NONINTERLACED; - - info->fbops = &gxfb_ops; - info->flags = FBINFO_DEFAULT; - info->node = -1; - - info->pseudo_palette = (void *)par + sizeof(struct gxfb_par); - - info->var.grayscale = 0; - - if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { - framebuffer_release(info); - return NULL; - } - - return info; -} - -#ifdef CONFIG_PM -static int gxfb_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct fb_info *info = pci_get_drvdata(pdev); - - if (state.event == PM_EVENT_SUSPEND) { - console_lock(); - gx_powerdown(info); - fb_set_suspend(info, 1); - console_unlock(); - } - - /* there's no point in setting PCI states; we emulate PCI, so - * we don't end up getting power savings anyways */ - - return 0; -} - -static int gxfb_resume(struct pci_dev *pdev) -{ - struct fb_info *info = pci_get_drvdata(pdev); - int ret; - - console_lock(); - ret = gx_powerup(info); - if (ret) { - printk(KERN_ERR "gxfb: power up failed!\n"); - return ret; - } - - fb_set_suspend(info, 0); - console_unlock(); - return 0; -} -#endif - -static int gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - struct gxfb_par *par; - struct fb_info *info; - int ret; - unsigned long val; - - struct fb_videomode *modedb_ptr; - unsigned int modedb_size; - - info = gxfb_init_fbinfo(&pdev->dev); - if (!info) - return -ENOMEM; - par = info->par; - - if ((ret = gxfb_map_video_memory(info, pdev)) < 0) { - dev_err(&pdev->dev, "failed to map frame buffer or controller registers\n"); - goto err; - } - - /* Figure out if this is a TFT or CRT part */ - - rdmsrl(MSR_GX_GLD_MSR_CONFIG, val); - - if ((val & MSR_GX_GLD_MSR_CONFIG_FP) == MSR_GX_GLD_MSR_CONFIG_FP) - par->enable_crt = 0; - else - par->enable_crt = 1; - - get_modedb(&modedb_ptr, &modedb_size); - ret = fb_find_mode(&info->var, info, mode_option, - modedb_ptr, modedb_size, NULL, 16); - if (ret == 0 || ret == 4) { - dev_err(&pdev->dev, "could not find valid video mode\n"); - ret = -EINVAL; - goto err; - } - - - /* Clear the frame buffer of garbage. */ - memset_io(info->screen_base, 0, info->fix.smem_len); - - gxfb_check_var(&info->var, info); - gxfb_set_par(info); - - pm_set_vt_switch(vt_switch); - - if (register_framebuffer(info) < 0) { - ret = -EINVAL; - goto err; - } - pci_set_drvdata(pdev, info); - fb_info(info, "%s frame buffer device\n", info->fix.id); - return 0; - - err: - if (info->screen_base) { - iounmap(info->screen_base); - pci_release_region(pdev, 0); - } - if (par->vid_regs) { - iounmap(par->vid_regs); - pci_release_region(pdev, 3); - } - if (par->dc_regs) { - iounmap(par->dc_regs); - pci_release_region(pdev, 2); - } - if (par->gp_regs) { - iounmap(par->gp_regs); - pci_release_region(pdev, 1); - } - - if (info) { - fb_dealloc_cmap(&info->cmap); - framebuffer_release(info); - } - return ret; -} - -static void gxfb_remove(struct pci_dev *pdev) -{ - struct fb_info *info = pci_get_drvdata(pdev); - struct gxfb_par *par = info->par; - - unregister_framebuffer(info); - - iounmap((void __iomem *)info->screen_base); - pci_release_region(pdev, 0); - - iounmap(par->vid_regs); - pci_release_region(pdev, 3); - - iounmap(par->dc_regs); - pci_release_region(pdev, 2); - - iounmap(par->gp_regs); - pci_release_region(pdev, 1); - - fb_dealloc_cmap(&info->cmap); - - framebuffer_release(info); -} - -static struct pci_device_id gxfb_id_table[] = { - { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_GX_VIDEO) }, - { 0, } -}; - -MODULE_DEVICE_TABLE(pci, gxfb_id_table); - -static struct pci_driver gxfb_driver = { - .name = "gxfb", - .id_table = gxfb_id_table, - .probe = gxfb_probe, - .remove = gxfb_remove, -#ifdef CONFIG_PM - .suspend = gxfb_suspend, - .resume = gxfb_resume, -#endif -}; - -#ifndef MODULE -static int __init gxfb_setup(char *options) -{ - - char *opt; - - if (!options || !*options) - return 0; - - while ((opt = strsep(&options, ",")) != NULL) { - if (!*opt) - continue; - - mode_option = opt; - } - - return 0; -} -#endif - -static int __init gxfb_init(void) -{ -#ifndef MODULE - char *option = NULL; - - if (fb_get_options("gxfb", &option)) - return -ENODEV; - - gxfb_setup(option); -#endif - return pci_register_driver(&gxfb_driver); -} - -static void __exit gxfb_cleanup(void) -{ - pci_unregister_driver(&gxfb_driver); -} - -module_init(gxfb_init); -module_exit(gxfb_cleanup); - -module_param(mode_option, charp, 0); -MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])"); - -module_param(vram, int, 0); -MODULE_PARM_DESC(vram, "video memory size"); - -module_param(vt_switch, int, 0); -MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume"); - -MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode GX"); -MODULE_LICENSE("GPL"); |