| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Geode LX framebuffer driver. |
| * |
| * Copyright (C) 2007 Advanced Micro Devices, Inc. |
| * Built from gxfb (which is Copyright (C) 2006 Arcom Control Systems Ltd.) |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/errno.h> |
| #include <linux/string.h> |
| #include <linux/console.h> |
| #include <linux/mm.h> |
| #include <linux/suspend.h> |
| #include <linux/delay.h> |
| #include <linux/fb.h> |
| #include <linux/init.h> |
| #include <linux/pci.h> |
| #include <linux/uaccess.h> |
| |
| #include <asm/olpc.h> |
| |
| #include "lxfb.h" |
| |
| static char *mode_option; |
| static int noclear, nopanel, nocrt; |
| static int vram; |
| static int vt_switch; |
| |
| /* Most of these modes are sorted in ascending order, but |
| * since the first entry in this table is the "default" mode, |
| * we try to make it something sane - 640x480-60 is sane |
| */ |
| |
| static struct fb_videomode geode_modedb[] = { |
| /* 640x480-60 */ |
| { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 640x400-70 */ |
| { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2, |
| FB_SYNC_HOR_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 640x480-70 */ |
| { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 640x480-72 */ |
| { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 640x480-75 */ |
| { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 640x480-85 */ |
| { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 640x480-90 */ |
| { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 640x480-100 */ |
| { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 640x480-60 */ |
| { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-56 */ |
| { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-60 */ |
| { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-70 */ |
| { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-72 */ |
| { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-75 */ |
| { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-85 */ |
| { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-90 */ |
| { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-100 */ |
| { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 800x600-60 */ |
| { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 1024x768-60 */ |
| { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 1024x768-70 */ |
| { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 1024x768-72 */ |
| { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1024x768-75 */ |
| { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1024x768-85 */ |
| { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1024x768-90 */ |
| { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1024x768-100 */ |
| { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1024x768-60 */ |
| { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 1152x864-60 */ |
| { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1152x864-70 */ |
| { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1152x864-72 */ |
| { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1152x864-75 */ |
| { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1152x864-85 */ |
| { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1152x864-90 */ |
| { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1152x864-100 */ |
| { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1152x864-60 */ |
| { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 1280x1024-60 */ |
| { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1280x1024-70 */ |
| { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1280x1024-72 */ |
| { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1280x1024-75 */ |
| { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1280x1024-85 */ |
| { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1280x1024-90 */ |
| { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1280x1024-100 */ |
| { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1280x1024-60 */ |
| { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 1600x1200-60 */ |
| { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1600x1200-70 */ |
| { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1600x1200-72 */ |
| { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1600x1200-75 */ |
| { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1600x1200-85 */ |
| { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1600x1200-90 */ |
| { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1600x1200-100 */ |
| { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1600x1200-60 */ |
| { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, |
| FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| FB_VMODE_NONINTERLACED, 0 }, |
| /* 1920x1440-60 */ |
| { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1920x1440-70 */ |
| { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1920x1440-72 */ |
| { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1920x1440-75 */ |
| { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| /* 1920x1440-85 */ |
| { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3, |
| 0, FB_VMODE_NONINTERLACED, 0 }, |
| }; |
| |
| static struct fb_videomode olpc_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 *) olpc_dcon_modedb; |
| *size = ARRAY_SIZE(olpc_dcon_modedb); |
| } else { |
| *modedb = (struct fb_videomode *) geode_modedb; |
| *size = ARRAY_SIZE(geode_modedb); |
| } |
| } |
| |
| static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
| { |
| if (var->xres > 1920 || var->yres > 1440) |
| 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 ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres) |
| > info->fix.smem_len) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static int lxfb_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 = lx_get_pitch(info->var.xres, |
| info->var.bits_per_pixel); |
| |
| lx_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 lxfb_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; |
| |
| lx_set_palette_reg(info, regno, red, green, blue); |
| } |
| |
| return 0; |
| } |
| |
| static int lxfb_blank(int blank_mode, struct fb_info *info) |
| { |
| return lx_blank_display(info, blank_mode); |
| } |
| |
| |
| static int lxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev) |
| { |
| struct lxfb_par *par = info->par; |
| int ret; |
| |
| ret = pci_enable_device(dev); |
| |
| if (ret) |
| return ret; |
| |
| ret = pci_request_region(dev, 0, "lxfb-framebuffer"); |
| |
| if (ret) |
| return ret; |
| |
| ret = pci_request_region(dev, 1, "lxfb-gp"); |
| |
| if (ret) |
| return ret; |
| |
| ret = pci_request_region(dev, 2, "lxfb-vg"); |
| |
| if (ret) |
| return ret; |
| |
| ret = pci_request_region(dev, 3, "lxfb-vp"); |
| |
| if (ret) |
| return ret; |
| |
| info->fix.smem_start = pci_resource_start(dev, 0); |
| info->fix.smem_len = vram ? vram : lx_framebuffer_size(); |
| |
| info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); |
| |
| ret = -ENOMEM; |
| |
| if (info->screen_base == NULL) |
| return ret; |
| |
| par->gp_regs = pci_ioremap_bar(dev, 1); |
| |
| if (par->gp_regs == NULL) |
| return ret; |
| |
| par->dc_regs = pci_ioremap_bar(dev, 2); |
| |
| if (par->dc_regs == NULL) |
| return ret; |
| |
| par->vp_regs = pci_ioremap_bar(dev, 3); |
| |
| if (par->vp_regs == NULL) |
| return ret; |
| |
| write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK); |
| write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000); |
| write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK); |
| |
| dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n", |
| info->fix.smem_len / 1024, info->fix.smem_start); |
| |
| return 0; |
| } |
| |
| static const struct fb_ops lxfb_ops = { |
| .owner = THIS_MODULE, |
| .fb_check_var = lxfb_check_var, |
| .fb_set_par = lxfb_set_par, |
| .fb_setcolreg = lxfb_setcolreg, |
| .fb_blank = lxfb_blank, |
| /* No HW acceleration for now. */ |
| .fb_fillrect = cfb_fillrect, |
| .fb_copyarea = cfb_copyarea, |
| .fb_imageblit = cfb_imageblit, |
| }; |
| |
| static struct fb_info *lxfb_init_fbinfo(struct device *dev) |
| { |
| struct lxfb_par *par; |
| struct fb_info *info; |
| |
| /* Alloc enough space for the pseudo palette. */ |
| info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16, |
| dev); |
| if (!info) |
| return NULL; |
| |
| par = info->par; |
| |
| strcpy(info->fix.id, "Geode LX"); |
| |
| 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 = &lxfb_ops; |
| info->flags = FBINFO_DEFAULT; |
| info->node = -1; |
| |
| info->pseudo_palette = (void *)par + sizeof(struct lxfb_par); |
| |
| if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { |
| framebuffer_release(info); |
| return NULL; |
| } |
| |
| info->var.grayscale = 0; |
| |
| return info; |
| } |
| |
| static int __maybe_unused lxfb_suspend(struct device *dev) |
| { |
| struct fb_info *info = dev_get_drvdata(dev); |
| |
| console_lock(); |
| lx_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 __maybe_unused lxfb_resume(struct device *dev) |
| { |
| struct fb_info *info = dev_get_drvdata(dev); |
| int ret; |
| |
| console_lock(); |
| ret = lx_powerup(info); |
| if (ret) { |
| printk(KERN_ERR "lxfb: power up failed!\n"); |
| return ret; |
| } |
| |
| fb_set_suspend(info, 0); |
| console_unlock(); |
| return 0; |
| } |
| |
| static int lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
| { |
| struct lxfb_par *par; |
| struct fb_info *info; |
| int ret; |
| |
| struct fb_videomode *modedb_ptr; |
| unsigned int modedb_size; |
| |
| info = lxfb_init_fbinfo(&pdev->dev); |
| |
| if (info == NULL) |
| return -ENOMEM; |
| |
| par = info->par; |
| |
| ret = lxfb_map_video_memory(info, pdev); |
| |
| if (ret < 0) { |
| dev_err(&pdev->dev, |
| "failed to map frame buffer or controller registers\n"); |
| goto err; |
| } |
| |
| /* Set up the desired outputs */ |
| |
| par->output = 0; |
| par->output |= (nopanel) ? 0 : OUTPUT_PANEL; |
| par->output |= (nocrt) ? 0 : OUTPUT_CRT; |
| |
| /* Set up the mode database */ |
| |
| 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 screen of garbage, unless noclear was specified, |
| * in which case we assume the user knows what he is doing */ |
| |
| if (!noclear) |
| memset_io(info->screen_base, 0, info->fix.smem_len); |
| |
| /* Set the mode */ |
| |
| lxfb_check_var(&info->var, info); |
| lxfb_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->gp_regs) { |
| iounmap(par->gp_regs); |
| pci_release_region(pdev, 1); |
| } |
| if (par->dc_regs) { |
| iounmap(par->dc_regs); |
| pci_release_region(pdev, 2); |
| } |
| if (par->vp_regs) { |
| iounmap(par->vp_regs); |
| pci_release_region(pdev, 3); |
| } |
| |
| fb_dealloc_cmap(&info->cmap); |
| framebuffer_release(info); |
| |
| return ret; |
| } |
| |
| static void lxfb_remove(struct pci_dev *pdev) |
| { |
| struct fb_info *info = pci_get_drvdata(pdev); |
| struct lxfb_par *par = info->par; |
| |
| unregister_framebuffer(info); |
| |
| iounmap(info->screen_base); |
| pci_release_region(pdev, 0); |
| |
| iounmap(par->gp_regs); |
| pci_release_region(pdev, 1); |
| |
| iounmap(par->dc_regs); |
| pci_release_region(pdev, 2); |
| |
| iounmap(par->vp_regs); |
| pci_release_region(pdev, 3); |
| |
| fb_dealloc_cmap(&info->cmap); |
| framebuffer_release(info); |
| } |
| |
| static struct pci_device_id lxfb_id_table[] = { |
| { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) }, |
| { 0, } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, lxfb_id_table); |
| |
| static const struct dev_pm_ops lxfb_pm_ops = { |
| #ifdef CONFIG_PM_SLEEP |
| .suspend = lxfb_suspend, |
| .resume = lxfb_resume, |
| .freeze = NULL, |
| .thaw = lxfb_resume, |
| .poweroff = NULL, |
| .restore = lxfb_resume, |
| #endif |
| }; |
| |
| static struct pci_driver lxfb_driver = { |
| .name = "lxfb", |
| .id_table = lxfb_id_table, |
| .probe = lxfb_probe, |
| .remove = lxfb_remove, |
| .driver.pm = &lxfb_pm_ops, |
| }; |
| |
| #ifndef MODULE |
| static int __init lxfb_setup(char *options) |
| { |
| char *opt; |
| |
| if (!options || !*options) |
| return 0; |
| |
| while ((opt = strsep(&options, ",")) != NULL) { |
| if (!*opt) |
| continue; |
| |
| if (!strcmp(opt, "noclear")) |
| noclear = 1; |
| else if (!strcmp(opt, "nopanel")) |
| nopanel = 1; |
| else if (!strcmp(opt, "nocrt")) |
| nocrt = 1; |
| else |
| mode_option = opt; |
| } |
| |
| return 0; |
| } |
| #endif |
| |
| static int __init lxfb_init(void) |
| { |
| #ifndef MODULE |
| char *option = NULL; |
| |
| if (fb_get_options("lxfb", &option)) |
| return -ENODEV; |
| |
| lxfb_setup(option); |
| #endif |
| return pci_register_driver(&lxfb_driver); |
| } |
| static void __exit lxfb_cleanup(void) |
| { |
| pci_unregister_driver(&lxfb_driver); |
| } |
| |
| module_init(lxfb_init); |
| module_exit(lxfb_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 LX"); |
| MODULE_LICENSE("GPL"); |