diff options
Diffstat (limited to 'packages/kexecboot/linux-kexecboot-2.6.23/uvesafb-0.1-rc3-2.6.22.patch')
| -rw-r--r-- | packages/kexecboot/linux-kexecboot-2.6.23/uvesafb-0.1-rc3-2.6.22.patch | 2590 |
1 files changed, 0 insertions, 2590 deletions
diff --git a/packages/kexecboot/linux-kexecboot-2.6.23/uvesafb-0.1-rc3-2.6.22.patch b/packages/kexecboot/linux-kexecboot-2.6.23/uvesafb-0.1-rc3-2.6.22.patch deleted file mode 100644 index 711375114f..0000000000 --- a/packages/kexecboot/linux-kexecboot-2.6.23/uvesafb-0.1-rc3-2.6.22.patch +++ /dev/null @@ -1,2590 +0,0 @@ ---- - Documentation/fb/uvesafb.txt | 188 +++ - drivers/video/Kconfig | 18 - drivers/video/Makefile | 1 - drivers/video/modedb.c | 28 - drivers/video/uvesafb.c | 2058 +++++++++++++++++++++++++++++++++++++++++++ - include/linux/connector.h | 7 - include/video/Kbuild | 2 - include/video/uvesafb.h | 193 ++++ - 8 files changed, 2479 insertions(+), 16 deletions(-) - -Index: linux-2.6.22/Documentation/fb/uvesafb.txt -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/Documentation/fb/uvesafb.txt 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,188 @@ -+ -+uvesafb - A Generic Driver for VBE2+ compliant video cards -+========================================================== -+ -+1. Requirements -+--------------- -+ -+uvesafb should work with any video card that has a Video BIOS compliant -+with the VBE 2.0 standard. -+ -+Unlike other drivers, uvesafb makes use of a userspace helper called -+v86d. v86d is used to run the x86 Video BIOS code in a simulated and -+controlled environment. This allows uvesafb to function on arches other -+than x86. Check the v86d documentation for a list of currently supported -+arches. -+ -+v86d source code can be downloaded from the following website: -+ http://dev.gentoo.org/~spock/projects/uvesafb -+ -+Please refer to the v86d documentation for detailed configuration and -+installation instructions. -+ -+Note that the v86d userspace helper has to be available at all times in -+order for uvesafb to work properly. If you want to use uvesafb during -+early boot, you will have to include v86d into an initramfs image, and -+either compile it into the kernel or use it as an initrd. -+ -+2. Caveats and limitations -+-------------------------- -+ -+uvesafb is a _generic_ driver which supports a wide variety of video -+cards, but which is ultimately limited by the Video BIOS interface. -+The most important limitations are: -+ -+- Lack of any type of acceleration. -+- A strict and limited set of supported video modes. Often the native -+ or most optimal resolution/refresh rate for your setup will not work -+ with uvesafb, simply because the Video BIOS doesn't support the -+ video mode you want to use. This can be especially painful with -+ widescreen panels, where native video modes don't have the 4:3 aspect -+ ratio, which is what most BIOS-es are limited to. -+- Adjusting the refresh rate is only possible with a VBE 3.0 compliant -+ Video BIOS. Note that many nVidia Video BIOS-es claim to be VBE 3.0 -+ compliant, while they simply ignore any refresh rate settings. -+ -+3. Configuration -+---------------- -+ -+uvesafb can be compiled either as a module, or directly into the kernel. -+In both cases it supports the same set of configuration options, which -+are either given on the kernel command line or as module parameters, e.g.: -+ -+ video=uvesafb:1024x768-32,mtrr:3,ywrap (compiled into the kernel) -+ -+ # modprobe uvesafb mode=1024x768-32 mtrr=3 scroll=ywrap (module) -+ -+Accepted options: -+ -+ypan Enable display panning using the VESA protected mode -+ interface. The visible screen is just a window of the -+ video memory, console scrolling is done by changing the -+ start of the window. Available on x86 only. -+ -+ywrap Same as ypan, but assumes your gfx board can wrap-around -+ the video memory (i.e. starts reading from top if it -+ reaches the end of video memory). Faster than ypan. -+ Available on x86 only. -+ -+redraw Scroll by redrawing the affected part of the screen, this -+ is the safe (and slow) default. -+ -+(If you're using uvesafb as a module, the above three options are -+ used a parameter of the scroll option, e.g. scroll=ypan.) -+ -+vgapal Use the standard VGA registers for palette changes. -+ -+pmipal Use the protected mode interface for palette changes. -+ This is the default if the protected mode interface is -+ available. Available on x86 only. -+ -+mtrr:n Setup memory type range registers for the framebuffer -+ where n: -+ 0 - disabled (equivalent to nomtrr) (default) -+ 1 - uncachable -+ 2 - write-back -+ 3 - write-combining -+ 4 - write-through -+ -+ If you see the following in dmesg, choose the type that matches -+ the old one. In this example, use "mtrr:2". -+... -+mtrr: type mismatch for e0000000,8000000 old: write-back new: write-combining -+... -+ -+nomtrr Do not use memory type range registers. -+ -+vremap:n -+ Remap 'n' MiB of video RAM. If 0 or not specified, remap memory -+ according to video mode. -+ -+vtotal:n -+ If the video BIOS of your card incorrectly determines the total -+ amount of video RAM, use this option to override the BIOS (in MiB). -+ -+<mode> The mode you want to set, in the standard modedb format. Refer to -+ modedb.txt for a detailed description. When uvesafb is compiled as -+ a module, the mode string should be provided as a value of the -+ 'mode' option. -+ -+vbemode:x -+ Force the use of VBE mode x. The mode will only be set if it's -+ found in the VBE-provided list of supported modes. -+ NOTE: The mode number 'x' should be specified in VESA mode number -+ notation, not the Linux kernel one (eg. 257 instead of 769). -+ HINT: If you use this option because normal <mode> parameter does -+ not work for you and you use a X server, you'll probably want to -+ set the 'nocrtc' option to ensure that the video mode is properly -+ restored after console <-> X switches. -+ -+nocrtc Do not use CRTC timings while setting the video mode. This option -+ has any effect only if the Video BIOS is VBE 3.0 compliant. Use it -+ if you have problems with modes set the standard way. Note that -+ using this option implies that any refresh rate adjustments will -+ be ignored and the refresh rate will stay at your BIOS default (60 Hz). -+ -+noedid Do not try to fetch and use EDID-provided modes. -+ -+noblank Disable hardware blanking. -+ -+v86d:path -+ Set path to the v86d executable. This option is only available as -+ a module parameter, and not as a part of the video= string. If you -+ need to use it and have uvesafb built into the kernel, use -+ uvesafb.v86d="path". -+ -+Additionally, the following parameters may be provided. They all override the -+EDID-provided values and BIOS defaults. Refer to your monitor's specs to get -+the correct values for maxhf, maxvf and maxclk for your hardware. -+ -+maxhf:n Maximum horizontal frequency (in kHz). -+maxvf:n Maximum vertical frequency (in Hz). -+maxclk:n Maximum pixel clock (in MHz). -+ -+4. The sysfs interface -+---------------------- -+ -+uvesafb provides several sysfs nodes for configurable parameters and -+additional information. -+ -+Driver attributes: -+ -+/sys/bus/platform/drivers/uvesafb -+ - v86d (default: /sbin/v86d) -+ Path to the v86d executable. v86d is started by uvesafb -+ if an instance of the daemon isn't already running. -+ -+Device attributes: -+ -+/sys/bus/platform/drivers/uvesafb/uvesafb.0 -+ - nocrtc -+ Use the default refresh rate (60 Hz) if set to 1. -+ -+ - oem_product_name -+ - oem_product_rev -+ - oem_string -+ - oem_vendor -+ Information about the card and its maker. -+ -+ - vbe_modes -+ A list of video modes supported by the Video BIOS along with their -+ VBE mode numbers in hex. -+ -+ - vbe_version -+ A BCD value indicating the implemented VBE standard. -+ -+5. Miscellaneous -+---------------- -+ -+Uvesafb will set a video mode with the default refresh rate and timings -+from the Video BIOS if you set pixclock to 0 in fb_var_screeninfo. -+ -+ -+-- -+ Michal Januszewski <spock@gentoo.org> -+ Last updated: 2007-06-16 -+ -+ Documentation of the uvesafb options is loosely based on vesafb.txt. -+ -Index: linux-2.6.22/drivers/video/Kconfig -=================================================================== ---- linux-2.6.22.orig/drivers/video/Kconfig 2007-08-28 21:56:33.000000000 +0100 -+++ linux-2.6.22/drivers/video/Kconfig 2007-08-28 21:56:34.000000000 +0100 -@@ -592,6 +592,24 @@ config FB_TGA - - Say Y if you have one of those. - -+config FB_UVESA -+ tristate "Userspace VESA VGA graphics support" -+ depends on FB && CONNECTOR -+ select FB_CFB_FILLRECT -+ select FB_CFB_COPYAREA -+ select FB_CFB_IMAGEBLIT -+ select FB_MODE_HELPERS -+ help -+ This is the frame buffer driver for generic VBE 2.0 compliant -+ graphic cards. It can also take advantage of VBE 3.0 features, -+ such as refresh rate adjustment. -+ -+ This driver generally provides more features than vesafb but -+ requires a userspace helper application called 'v86d'. See -+ <file:Documentation/fb/uvesafb.txt> for more information. -+ -+ If unsure, say N. -+ - config FB_VESA - bool "VESA VGA graphics support" - depends on (FB = y) && X86 -Index: linux-2.6.22/drivers/video/Makefile -=================================================================== ---- linux-2.6.22.orig/drivers/video/Makefile 2007-08-28 21:56:33.000000000 +0100 -+++ linux-2.6.22/drivers/video/Makefile 2007-08-28 21:56:34.000000000 +0100 -@@ -116,6 +116,7 @@ obj-$(CONFIG_FB_XILINX) += xil - obj-$(CONFIG_FB_OMAP) += omap/ - - # Platform or fallback drivers go here -+obj-$(CONFIG_FB_UVESA) += uvesafb.o - obj-$(CONFIG_FB_VESA) += vesafb.o - obj-$(CONFIG_FB_IMAC) += imacfb.o - obj-$(CONFIG_FB_VGA16) += vga16fb.o -Index: linux-2.6.22/drivers/video/modedb.c -=================================================================== ---- linux-2.6.22.orig/drivers/video/modedb.c 2007-08-28 21:54:13.000000000 +0100 -+++ linux-2.6.22/drivers/video/modedb.c 2007-08-28 21:56:34.000000000 +0100 -@@ -606,26 +606,29 @@ done: - DPRINTK("Trying specified video mode%s %ix%i\n", - refresh_specified ? "" : " (ignoring refresh rate)", xres, yres); - -- diff = refresh; -+ if (!refresh_specified) -+ diff = 0; -+ else -+ diff = refresh; -+ - best = -1; - for (i = 0; i < dbsize; i++) { -- if (name_matches(db[i], name, namelen) || -- (res_specified && res_matches(db[i], xres, yres))) { -- if(!fb_try_mode(var, info, &db[i], bpp)) { -- if(!refresh_specified || db[i].refresh == refresh) -- return 1; -- else { -- if(diff > abs(db[i].refresh - refresh)) { -- diff = abs(db[i].refresh - refresh); -- best = i; -- } -+ if ((name_matches(db[i], name, namelen) || -+ (res_specified && res_matches(db[i], xres, yres))) && -+ !fb_try_mode(var, info, &db[i], bpp)) { -+ if (refresh_specified && db[i].refresh == refresh) { -+ return 1; -+ } else { -+ if (diff < db[i].refresh) { -+ diff = db[i].refresh; -+ best = i; - } - } - } - } - if (best != -1) { - fb_try_mode(var, info, &db[best], bpp); -- return 2; -+ return (refresh_specified) ? 2 : 1; - } - - diff = xres + yres; -@@ -938,6 +941,7 @@ void fb_destroy_modelist(struct list_hea - kfree(pos); - } - } -+EXPORT_SYMBOL_GPL(fb_destroy_modelist); - - /** - * fb_videomode_to_modelist: convert mode array to mode list -Index: linux-2.6.22/drivers/video/uvesafb.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/video/uvesafb.c 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,2058 @@ -+/* -+ * A framebuffer driver for VBE 2.0+ compliant video cards -+ * -+ * (c) 2007 Michal Januszewski <spock@gentoo.org> -+ * Loosely based upon the vesafb driver. -+ * -+ */ -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/skbuff.h> -+#include <linux/timer.h> -+#include <linux/completion.h> -+#include <linux/connector.h> -+#include <linux/random.h> -+#include <linux/platform_device.h> -+#include <linux/limits.h> -+#include <linux/fb.h> -+#include <linux/io.h> -+#include <linux/mutex.h> -+#include <video/edid.h> -+#include <video/vga.h> -+#include <video/uvesafb.h> -+#ifdef CONFIG_MTRR -+#include <asm/mtrr.h> -+#endif -+#include "edid.h" -+ -+static struct cb_id uvesafb_cn_id = { -+ .idx = CN_IDX_V86D, -+ .val = CN_VAL_V86D_UVESAFB -+}; -+static char v86d_path[PATH_MAX] = "/sbin/v86d"; -+static char v86d_started; /* has v86d been started by uvesafb? */ -+ -+static struct fb_fix_screeninfo uvesafb_fix __devinitdata = { -+ .id = "VESA VGA", -+ .type = FB_TYPE_PACKED_PIXELS, -+ .accel = FB_ACCEL_NONE, -+ .visual = FB_VISUAL_TRUECOLOR, -+}; -+ -+static int mtrr __devinitdata = 3; /* enable mtrr by default */ -+static int blank __devinitdata = 1; /* enable blanking by default */ -+static int ypan __devinitdata = 1; /* 0: scroll, 1: ypan, 2: ywrap */ -+static int pmi_setpal __devinitdata = 1; /* use PMI for palette changes */ -+static int nocrtc __devinitdata; /* ignore CRTC settings */ -+static int noedid __devinitdata; /* don't try DDC transfers */ -+static int vram_remap __devinitdata; /* set amt. of memory to be used */ -+static int vram_total __devinitdata; /* set total amount of memory */ -+static u16 maxclk __devinitdata; /* maximum pixel clock */ -+static u16 maxvf __devinitdata; /* maximum vertical frequency */ -+static u16 maxhf __devinitdata; /* maximum horizontal frequency */ -+static u16 vbemode __devinitdata; /* force use of a specific VBE mode */ -+static char *mode_option __devinitdata; -+ -+static struct uvesafb_ktask *uvfb_tasks[UVESAFB_TASKS_MAX]; -+static DEFINE_MUTEX(uvfb_lock); -+ -+/* -+ * A handler for replies from userspace. -+ * -+ * Make sure each message passes consistency checks and if it does, -+ * find the kernel part of the task struct, copy the registers and -+ * the buffer contents and then complete the task. -+ */ -+static void uvesafb_cn_callback(void *data) -+{ -+ struct cn_msg *msg = data; -+ struct uvesafb_task *utask; -+ struct uvesafb_ktask *task; -+ -+ if (msg->seq >= UVESAFB_TASKS_MAX) -+ return; -+ -+ mutex_lock(&uvfb_lock); -+ task = uvfb_tasks[msg->seq]; -+ -+ if (!task || msg->ack != task->ack) { -+ mutex_unlock(&uvfb_lock); -+ return; -+ } -+ -+ utask = (struct uvesafb_task *)msg->data; -+ -+ /* Sanity checks for the buffer length. */ -+ if (task->t.buf_len < utask->buf_len || -+ utask->buf_len > msg->len - sizeof(*utask)) { -+ mutex_unlock(&uvfb_lock); -+ return; -+ } -+ -+ uvfb_tasks[msg->seq] = NULL; -+ mutex_unlock(&uvfb_lock); -+ -+ memcpy(&task->t, utask, sizeof(*utask)); -+ -+ if (task->t.buf_len && task->buf) -+ memcpy(task->buf, utask + 1, task->t.buf_len); -+ -+ complete(task->done); -+ return; -+} -+ -+static int uvesafb_helper_start(void) -+{ -+ char *envp[] = { -+ "HOME=/", -+ "PATH=/sbin:/bin", -+ NULL, -+ }; -+ -+ char *argv[] = { -+ v86d_path, -+ NULL, -+ }; -+ -+ return call_usermodehelper(v86d_path, argv, envp, 1); -+} -+ -+/* -+ * Execute a uvesafb task. -+ * -+ * Returns 0 if the task is executed successfully. -+ * -+ * A message sent to the userspace consists of the uvesafb_task -+ * struct and (optionally) a buffer. The uvesafb_task struct is -+ * a simplified version of uvesafb_ktask (its kernel counterpart) -+ * containing only the register values, flags and the length of -+ * the buffer. -+ * -+ * Each message is assigned a sequence number (increased linearly) -+ * and a random ack number. The sequence number is used as a key -+ * for the uvfb_tasks array which holds pointers to uvesafb_ktask -+ * structs for all requests. -+ */ -+static int uvesafb_exec(struct uvesafb_ktask *task) -+{ -+ static int seq; -+ struct cn_msg *m; -+ int err; -+ int len = sizeof(task->t) + task->t.buf_len; -+ -+ /* -+ * Check whether the message isn't longer than the maximum -+ * allowed by connector. -+ */ -+ if (sizeof(*m) + len > CONNECTOR_MAX_MSG_SIZE) { -+ printk(KERN_WARNING "uvesafb: message too long (%d), " -+ "can't execute task\n", (int)(sizeof(*m) + len)); -+ return -E2BIG; -+ } -+ -+ m = kzalloc(sizeof(*m) + len, GFP_KERNEL); -+ if (!m) -+ return -ENOMEM; -+ -+ init_completion(task->done); -+ -+ memcpy(&m->id, &uvesafb_cn_id, sizeof(m->id)); -+ m->seq = seq; -+ m->len = len; -+ m->ack = random32(); -+ -+ /* uvesafb_task structure */ -+ memcpy(m + 1, &task->t, sizeof(task->t)); -+ -+ /* Buffer */ -+ memcpy((u8 *)(m + 1) + sizeof(task->t), task->buf, task->t.buf_len); -+ -+ /* -+ * Save the message ack number so that we can find the kernel -+ * part of this task when a reply is received from userspace. -+ */ -+ task->ack = m->ack; -+ -+ mutex_lock(&uvfb_lock); -+ -+ /* If all slots are taken -- bail out. */ -+ if (uvfb_tasks[seq]) { -+ mutex_unlock(&uvfb_lock); -+ return -EBUSY; -+ } -+ -+ /* Save a pointer to the kernel part of the task struct. */ -+ uvfb_tasks[seq] = task; -+ mutex_unlock(&uvfb_lock); -+ -+ err = cn_netlink_send(m, 0, gfp_any()); -+ if (err == -ESRCH) { -+ /* -+ * Try to start the userspace helper if sending -+ * the request failed the first time. -+ */ -+ err = uvesafb_helper_start(); -+ if (err) { -+ printk(KERN_ERR "uvesafb: failed to execute %s\n", -+ v86d_path); -+ printk(KERN_ERR "uvesafb: make sure that the v86d " -+ "helper is installed and executable\n"); -+ } else { -+ v86d_started = 1; -+ err = cn_netlink_send(m, 0, gfp_any()); -+ } -+ } -+ kfree(m); -+ -+ if (!err && !(task->t.flags & TF_EXIT)) -+ err = !wait_for_completion_timeout(task->done, -+ msecs_to_jiffies(UVESAFB_TIMEOUT)); -+ -+ mutex_lock(&uvfb_lock); -+ uvfb_tasks[seq] = NULL; -+ mutex_unlock(&uvfb_lock); -+ -+ seq++; -+ if (seq >= UVESAFB_TASKS_MAX) -+ seq = 0; -+ -+ return err; -+} -+ -+/* -+ * Free a uvesafb_ktask struct. -+ */ -+static void uvesafb_free(struct uvesafb_ktask *task) -+{ -+ if (task) { -+ if (task->done) -+ kfree(task->done); -+ kfree(task); -+ } -+} -+ -+/* -+ * Prepare a uvesafb_ktask struct to be used again. -+ */ -+static void uvesafb_reset(struct uvesafb_ktask *task) -+{ -+ struct completion *cpl = task->done; -+ -+ memset(task, 0, sizeof(*task)); -+ task->done = cpl; -+} -+ -+/* -+ * Allocate and prepare a uvesafb_ktask struct. -+ */ -+static struct uvesafb_ktask *uvesafb_prep(void) -+{ -+ struct uvesafb_ktask *task; -+ -+ task = kzalloc(sizeof(*task), GFP_KERNEL); -+ if (task) { -+ task->done = kzalloc(sizeof(*task->done), GFP_KERNEL); -+ if (!task->done) { -+ kfree(task); -+ task = NULL; -+ } -+ } -+ return task; -+} -+ -+static void uvesafb_setup_var(struct fb_var_screeninfo *var, -+ struct fb_info *info, struct vbe_mode_ib *mode) -+{ -+ struct uvesafb_par *par = info->par; -+ -+ var->vmode = FB_VMODE_NONINTERLACED; -+ var->sync = FB_SYNC_VERT_HIGH_ACT; -+ -+ var->xres = mode->x_res; -+ var->yres = mode->y_res; -+ var->xres_virtual = mode->x_res; -+ var->yres_virtual = (par->ypan) ? -+ info->fix.smem_len / mode->bytes_per_scan_line : -+ mode->y_res; -+ var->xoffset = 0; -+ var->yoffset = 0; -+ var->bits_per_pixel = mode->bits_per_pixel; -+ -+ if (var->bits_per_pixel == 15) -+ var->bits_per_pixel = 16; -+ -+ if (var->bits_per_pixel > 8) { -+ var->red.offset = mode->red_off; -+ var->red.length = mode->red_len; -+ var->green.offset = mode->green_off; -+ var->green.length = mode->green_len; -+ var->blue.offset = mode->blue_off; -+ var->blue.length = mode->blue_len; -+ var->transp.offset = mode->rsvd_off; -+ var->transp.length = mode->rsvd_len; -+ } else { -+ var->red.offset = 0; -+ var->green.offset = 0; -+ var->blue.offset = 0; -+ var->transp.offset = 0; -+ -+ /* -+ * We're assuming that we can switch the DAC to 8 bits. If -+ * this proves to be incorrect, we'll update the fields -+ * later in set_par(). -+ */ -+ if (par->vbe_ib.capabilities & VBE_CAP_CAN_SWITCH_DAC) { -+ var->red.length = 8; -+ var->green.length = 8; -+ var->blue.length = 8; -+ var->transp.length = 0; -+ } else { -+ var->red.length = 6; -+ var->green.length = 6; -+ var->blue.length = 6; -+ var->transp.length = 0; -+ } -+ } -+} -+ -+static int uvesafb_vbe_find_mode(struct uvesafb_par *par, -+ int xres, int yres, int depth, unsigned char flags) -+{ -+ int i, match = -1, h = 0, d = 0x7fffffff; -+ -+ for (i = 0; i < par->vbe_modes_cnt; i++) { -+ h = abs(par->vbe_modes[i].x_res - xres) + -+ abs(par->vbe_modes[i].y_res - yres) + -+ abs(depth - par->vbe_modes[i].depth); -+ -+ /* -+ * We have an exact match in terms of resolution -+ * and depth. -+ */ -+ if (h == 0) -+ return i; -+ -+ if (h < d || (h == d && par->vbe_modes[i].depth > depth)) { -+ d = h; -+ match = i; -+ } -+ } -+ i = 1; -+ -+ if (flags & UVESAFB_EXACT_DEPTH && -+ par->vbe_modes[match].depth != depth) -+ i = 0; -+ -+ if (flags & UVESAFB_EXACT_RES && d > 24) -+ i = 0; -+ -+ if (i != 0) -+ return match; -+ else -+ return -1; -+} -+ -+static u8 *uvesafb_vbe_state_save(struct uvesafb_par *par) -+{ -+ struct uvesafb_ktask *task; -+ u8 *state; -+ int err; -+ -+ if (!par->vbe_state_size) -+ return NULL; -+ -+ state = kmalloc(par->vbe_state_size, GFP_KERNEL); -+ if (!state) -+ return NULL; -+ -+ task = uvesafb_prep(); -+ if (!task) { -+ kfree(state); -+ return NULL; -+ } -+ -+ task->t.regs.eax = 0x4f04; -+ task->t.regs.ecx = 0x000f; -+ task->t.regs.edx = 0x0001; -+ task->t.flags = TF_BUF_RET | TF_BUF_ESBX; -+ task->t.buf_len = par->vbe_state_size; -+ task->buf = state; -+ err = uvesafb_exec(task); -+ -+ if (err || (task->t.regs.eax & 0xffff) != 0x004f) { -+ printk(KERN_WARNING "uvesafb: VBE get state call " -+ "failed (eax=0x%x, err=%d)\n", -+ task->t.regs.eax, err); -+ kfree(state); -+ state = NULL; -+ } -+ -+ uvesafb_free(task); -+ return state; -+} -+ -+static void uvesafb_vbe_state_restore(struct uvesafb_par *par, u8 *state_buf) -+{ -+ struct uvesafb_ktask *task; -+ int err; -+ -+ if (!state_buf) -+ return; -+ -+ task = uvesafb_prep(); -+ if (!task) -+ return; -+ -+ task->t.regs.eax = 0x4f04; -+ task->t.regs.ecx = 0x000f; -+ task->t.regs.edx = 0x0002; -+ task->t.buf_len = par->vbe_state_size; -+ task->t.flags = TF_BUF_ESBX; -+ task->buf = state_buf; -+ -+ err = uvesafb_exec(task); -+ if (err || (task->t.regs.eax & 0xffff) != 0x004f) -+ printk(KERN_WARNING "uvesafb: VBE state restore call " -+ "failed (eax=0x%x, err=%d)\n", -+ task->t.regs.eax, err); -+ -+ uvesafb_free(task); -+} -+ -+static int __devinit uvesafb_vbe_getinfo(struct uvesafb_ktask *task, -+ struct uvesafb_par *par) -+{ -+ int err; -+ -+ task->t.regs.eax = 0x4f00; -+ task->t.flags = TF_VBEIB; -+ task->t.buf_len = sizeof(struct vbe_ib); -+ task->buf = &par->vbe_ib; -+ strncpy(par->vbe_ib.vbe_signature, "VBE2", 4); -+ -+ err = uvesafb_exec(task); -+ if (err || (task->t.regs.eax & 0xffff) != 0x004f) { -+ printk(KERN_ERR "uvesafb: Getting VBE info block failed " -+ "(eax=0x%x, err=%d)\n", (u32)task->t.regs.eax, -+ err); -+ return -EINVAL; -+ } -+ -+ if (par->vbe_ib.vbe_version < 0x0200) { -+ printk(KERN_ERR "uvesafb: Sorry, pre-VBE 2.0 cards are " -+ "not supported.\n"); -+ return -EINVAL; -+ } -+ -+ if (!par->vbe_ib.mode_list_ptr) { -+ printk(KERN_ERR "uvesafb: Missing mode list!\n"); -+ return -EINVAL; -+ } -+ -+ printk(KERN_INFO "uvesafb: "); -+ -+ /* -+ * Convert string pointers and the mode list pointer into -+ * usable addresses. Print informational messages about the -+ * video adapter and its vendor. -+ */ -+ if (par->vbe_ib.oem_vendor_name_ptr) -+ printk("%s, ", -+ ((char *)task->buf) + par->vbe_ib.oem_vendor_name_ptr); -+ -+ if (par->vbe_ib.oem_product_name_ptr) -+ printk("%s, ", -+ ((char *)task->buf) + par->vbe_ib.oem_product_name_ptr); -+ -+ if (par->vbe_ib.oem_product_rev_ptr) -+ printk("%s, ", -+ ((char *)task->buf) + par->vbe_ib.oem_product_rev_ptr); -+ -+ if (par->vbe_ib.oem_string_ptr) -+ printk("OEM: %s, ", -+ ((char *)task->buf) + par->vbe_ib.oem_string_ptr); -+ -+ printk("VBE v%d.%d\n", ((par->vbe_ib.vbe_version & 0xff00) >> 8), -+ par->vbe_ib.vbe_version & 0xff); -+ -+ return 0; -+} -+ -+static int __devinit uvesafb_vbe_getmodes(struct uvesafb_ktask *task, -+ struct uvesafb_par *par) -+{ -+ int off = 0, err; -+ u16 *mode; -+ -+ par->vbe_modes_cnt = 0; -+ -+ /* Count available modes. */ -+ mode = (u16 *) (((u8 *)&par->vbe_ib) + par->vbe_ib.mode_list_ptr); -+ while (*mode != 0xffff) { -+ par->vbe_modes_cnt++; -+ mode++; -+ } -+ -+ par->vbe_modes = kzalloc(sizeof(struct vbe_mode_ib) * -+ par->vbe_modes_cnt, GFP_KERNEL); -+ if (!par->vbe_modes) -+ return -ENOMEM; -+ -+ /* Get info about all available modes. */ -+ mode = (u16 *) (((u8 *)&par->vbe_ib) + par->vbe_ib.mode_list_ptr); -+ while (*mode != 0xffff) { -+ struct vbe_mode_ib *mib; -+ -+ uvesafb_reset(task); -+ task->t.regs.eax = 0x4f01; -+ task->t.regs.ecx = (u32) *mode; -+ task->t.flags = TF_BUF_RET | TF_BUF_ESDI; -+ task->t.buf_len = sizeof(struct vbe_mode_ib); -+ task->buf = par->vbe_modes + off; -+ -+ err = uvesafb_exec(task); -+ if (err || (task->t.regs.eax & 0xffff) != 0x004f) { -+ printk(KERN_ERR "uvesafb: Getting mode info block " -+ "for mode 0x%x failed (eax=0x%x, err=%d)\n", -+ *mode, (u32)task->t.regs.eax, err); -+ return -EINVAL; -+ } -+ -+ mib = task->buf; -+ mib->mode_id = *mode; -+ -+ /* -+ * We only want modes that are supported with the current -+ * hardware configuration, color, graphics and that have -+ * support for the LFB. -+ */ -+ if ((mib->mode_attr & VBE_MODE_MASK) == VBE_MODE_MASK && -+ mib->bits_per_pixel >= 8) -+ off++; -+ else -+ par->vbe_modes_cnt--; -+ -+ mode++; -+ mib->depth = mib->red_len + mib->green_len + mib->blue_len; -+ -+ /* -+ * Handle 8bpp modes and modes with broken color component -+ * lengths. -+ */ -+ if (mib->depth == 0 || (mib->depth == 24 && -+ mib->bits_per_pixel == 32)) -+ mib->depth = mib->bits_per_pixel; -+ } -+ -+ return 0; -+} -+ -+/* -+ * The Protected Mode Interface is 32-bit x86 code, so we only run it on -+ * x86 and not x86_64. -+ */ -+#ifdef CONFIG_X86_32 -+static int __devinit uvesafb_vbe_getpmi(struct uvesafb_ktask *task, -+ struct uvesafb_par *par) -+{ -+ int i, err; -+ -+ uvesafb_reset(task); -+ task->t.regs.eax = 0x4f0a; -+ task->t.regs.ebx = 0x0; -+ err = uvesafb_exec(task); -+ -+ if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) { -+ par->pmi_setpal = par->ypan = 0; -+ } else { -+ par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4) -+ + task->t.regs.edi); -+ par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1]; -+ par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2]; -+ printk(KERN_INFO "uvesafb: protected mode interface info at " -+ "%04x:%04x\n", -+ (u16)task->t.regs.es, (u16)task->t.regs.edi); -+ printk(KERN_INFO "uvesafb: pmi: set display start = %p, " -+ "set palette = %p\n", par->pmi_start, -+ par->pmi_pal); -+ -+ if (par->pmi_base[3]) { -+ printk(KERN_INFO "uvesafb: pmi: ports = "); -+ for (i = par->pmi_base[3]/2; -+ par->pmi_base[i] != 0xffff; i++) -+ printk("%x ", par->pmi_base[i]); -+ printk("\n"); -+ -+ if (par->pmi_base[i] != 0xffff) { -+ printk(KERN_INFO "uvesafb: can't handle memory" -+ " requests, pmi disabled\n"); -+ par->ypan = par->pmi_setpal = 0; -+ } -+ } -+ } -+ return 0; -+} -+#endif /* CONFIG_X86_32 */ -+ -+/* -+ * Check whether a video mode is supported by the Video BIOS and is -+ * compatible with the monitor limits. -+ */ -+static int __devinit uvesafb_is_valid_mode(struct fb_videomode *mode, -+ struct fb_info *info) -+{ -+ if (info->monspecs.gtf) { -+ fb_videomode_to_var(&info->var, mode); -+ if (fb_validate_mode(&info->var, info)) -+ return 0; -+ } -+ -+ if (uvesafb_vbe_find_mode(info->par, mode->xres, mode->yres, 8, -+ UVESAFB_EXACT_RES) == -1) -+ return 0; -+ -+ return 1; -+} -+ -+static int __devinit uvesafb_vbe_getedid(struct uvesafb_ktask *task, -+ struct fb_info *info) -+{ -+ struct uvesafb_par *par = info->par; -+ int err = 0; -+ -+ if (noedid || par->vbe_ib.vbe_version < 0x0300) -+ return -EINVAL; -+ -+ task->t.regs.eax = 0x4f15; -+ task->t.regs.ebx = 0; -+ task->t.regs.ecx = 0; -+ task->t.buf_len = 0; -+ task->t.flags = 0; -+ -+ err = uvesafb_exec(task); -+ -+ if ((task->t.regs.eax & 0xffff) != 0x004f || err) -+ return -EINVAL; -+ -+ if ((task->t.regs.ebx & 0x3) == 3) { -+ printk(KERN_INFO "uvesafb: VBIOS/hardware supports both " -+ "DDC1 and DDC2 transfers\n"); -+ } else if ((task->t.regs.ebx & 0x3) == 2) { -+ printk(KERN_INFO "uvesafb: VBIOS/hardware supports DDC2 " -+ "transfers\n"); -+ } else if ((task->t.regs.ebx & 0x3) == 1) { -+ printk(KERN_INFO "uvesafb: VBIOS/hardware supports DDC1 " -+ "transfers\n"); -+ } else { -+ printk(KERN_INFO "uvesafb: VBIOS/hardware doesn't support " -+ "DDC transfers\n"); -+ return -EINVAL; -+ } -+ -+ task->t.regs.eax = 0x4f15; -+ task->t.regs.ebx = 1; -+ task->t.regs.ecx = task->t.regs.edx = 0; -+ task->t.flags = TF_BUF_RET | TF_BUF_ESDI; -+ task->t.buf_len = EDID_LENGTH; -+ task->buf = kzalloc(EDID_LENGTH, GFP_KERNEL); -+ -+ err = uvesafb_exec(task); -+ -+ if ((task->t.regs.eax & 0xffff) == 0x004f && !err) { -+ fb_edid_to_monspecs(task->buf, &info->monspecs); -+ -+ if (info->monspecs.vfmax && info->monspecs.hfmax) { -+ /* -+ * If the maximum pixel clock wasn't specified in -+ * the EDID block, set it to 300 MHz. -+ */ -+ if (info->monspecs.dclkmax == 0) -+ info->monspecs.dclkmax = 300 * 1000000; -+ info->monspecs.gtf = 1; -+ } -+ } else { -+ err = -EINVAL; -+ } -+ -+ kfree(task->buf); -+ return err; -+} -+ -+static void __devinit uvesafb_vbe_getmonspecs(struct uvesafb_ktask *task, -+ struct fb_info *info) -+{ -+ struct uvesafb_par *par = info->par; -+ int i; -+ -+ memset(&info->monspecs, 0, sizeof(info->monspecs)); -+ -+ /* -+ * If we don't get all necessary data from the EDID block, -+ * mark it as incompatible with the GTF and set nocrtc so -+ * that we always use the default BIOS refresh rate. -+ */ -+ if (uvesafb_vbe_getedid(task, info)) { -+ info->monspecs.gtf = 0; -+ par->nocrtc = 1; -+ } -+ -+ /* Kernel command line overrides. */ -+ if (maxclk) -+ info->monspecs.dclkmax = maxclk * 1000000; -+ if (maxvf) -+ info->monspecs.vfmax = maxvf; -+ if (maxhf) -+ info->monspecs.hfmax = maxhf * 1000; -+ -+ /* -+ * In case DDC transfers are not supported, the user can provide -+ * monitor limits manually. Lower limits are set to "safe" values. -+ */ -+ if (info->monspecs.gtf == 0 && maxclk && maxvf && maxhf) { -+ info->monspecs.dclkmin = 0; -+ info->monspecs.vfmin = 60; -+ info->monspecs.hfmin = 29000; -+ info->monspecs.gtf = 1; -+ par->nocrtc = 0; -+ } -+ -+ if (info->monspecs.gtf) -+ printk(KERN_INFO -+ "uvesafb: monitor limits: vf = %d Hz, hf = %d kHz, " -+ "clk = %d MHz\n", info->monspecs.vfmax, -+ (int)(info->monspecs.hfmax / 1000), -+ (int)(info->monspecs.dclkmax / 1000000)); -+ else -+ printk(KERN_INFO "uvesafb: no monitor limits have been set, " -+ "default refresh rate will be used\n"); -+ -+ /* Add VBE modes to the modelist. */ -+ for (i = 0; i < par->vbe_modes_cnt; i++) { -+ struct fb_var_screeninfo var; -+ struct vbe_mode_ib *mode; -+ struct fb_videomode vmode; -+ -+ mode = &par->vbe_modes[i]; -+ memset(&var, 0, sizeof(var)); -+ -+ var.xres = mode->x_res; -+ var.yres = mode->y_res; -+ -+ fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60, &var, info); -+ fb_var_to_videomode(&vmode, &var); -+ fb_add_videomode(&vmode, &info->modelist); -+ } -+ -+ /* Add valid VESA modes to our modelist. */ -+ for (i = 0; i < VESA_MODEDB_SIZE; i++) { -+ if (uvesafb_is_valid_mode((struct fb_videomode *) -+ &vesa_modes[i], info)) -+ fb_add_videomode(&vesa_modes[i], &info->modelist); -+ } -+ -+ for (i = 0; i < info->monspecs.modedb_len; i++) { -+ if (uvesafb_is_valid_mode(&info->monspecs.modedb[i], info)) -+ fb_add_videomode(&info->monspecs.modedb[i], -+ &info->modelist); -+ } -+ -+ return; -+} -+ -+static void __devinit uvesafb_vbe_getstatesize(struct uvesafb_ktask *task, -+ struct uvesafb_par *par) -+{ -+ int err; -+ -+ uvesafb_reset(task); -+ -+ /* -+ * Get the VBE state buffer size. We want all available -+ * hardware state data (CL = 0x0f). -+ */ -+ task->t.regs.eax = 0x4f04; -+ task->t.regs.ecx = 0x000f; -+ task->t.regs.edx = 0x0000; -+ task->t.flags = 0; -+ -+ err = uvesafb_exec(task); -+ -+ if (err || (task->t.regs.eax & 0xffff) != 0x004f) { -+ printk(KERN_WARNING "uvesafb: VBE state buffer size " -+ "cannot be determined (eax=0x%x, err=%d)\n", -+ task->t.regs.eax, err); -+ par->vbe_state_size = 0; -+ return; -+ } -+ -+ par->vbe_state_size = 64 * (task->t.regs.ebx & 0xffff); -+} -+ -+static int __devinit uvesafb_vbe_init(struct fb_info *info) -+{ -+ struct uvesafb_ktask *task = NULL; -+ struct uvesafb_par *par = info->par; -+ int err; -+ -+ task = uvesafb_prep(); -+ if (!task) -+ return -ENOMEM; -+ -+ err = uvesafb_vbe_getinfo(task, par); -+ if (err) -+ goto out; -+ -+ err = uvesafb_vbe_getmodes(task, par); -+ if (err) -+ goto out; -+ -+ par->nocrtc = nocrtc; -+#ifdef CONFIG_X86_32 -+ par->pmi_setpal = pmi_setpal; -+ par->ypan = ypan; -+ -+ if (par->pmi_setpal || par->ypan) -+ uvesafb_vbe_getpmi(task, par); -+#else -+ /* The protected mode interface is not available on non-x86. */ -+ par->pmi_setpal = par->ypan = 0; -+#endif -+ -+ INIT_LIST_HEAD(&info->modelist); -+ uvesafb_vbe_getmonspecs(task, info); -+ uvesafb_vbe_getstatesize(task, par); -+ -+out: uvesafb_free(task); -+ return err; -+} -+ -+static int __devinit uvesafb_vbe_init_mode(struct fb_info *info) -+{ -+ struct list_head *pos; -+ struct fb_modelist *modelist; -+ struct fb_videomode *mode; -+ struct uvesafb_par *par = info->par; -+ int i, modeid; -+ -+ /* Has the user requested a specific VESA mode? */ -+ if (vbemode) { -+ for (i = 0; i < par->vbe_modes_cnt; i++) { -+ if (par->vbe_modes[i].mode_id == vbemode) { -+ fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60, -+ &info->var, info); -+ /* -+ * With pixclock set to 0, the default BIOS -+ * timings will be used in set_par(). -+ */ -+ info->var.pixclock = 0; -+ modeid = i; -+ goto gotmode; -+ } -+ } -+ printk(KERN_INFO "uvesafb: requested VBE mode 0x%x is " -+ "unavailable\n", vbemode); -+ vbemode = 0; -+ } -+ -+ /* Count the modes in the modelist */ -+ i = 0; -+ list_for_each(pos, &info->modelist) -+ i++; -+ -+ /* -+ * Convert the modelist into a modedb so that we can use it with -+ * fb_find_mode(). -+ */ -+ mode = kzalloc(i * sizeof(*mode), GFP_KERNEL); -+ if (mode) { -+ i = 0; -+ list_for_each(pos, &info->modelist) { -+ modelist = list_entry(pos, struct fb_modelist, list); -+ mode[i] = modelist->mode; -+ i++; -+ } -+ -+ if (!mode_option) -+ mode_option = UVESAFB_DEFAULT_MODE; -+ -+ i = fb_find_mode(&info->var, info, mode_option, mode, i, -+ NULL, 8); -+ -+ kfree(mode); -+ } -+ -+ /* fb_find_mode() failed */ -+ if (i == 0 || i >= 3) { -+ info->var.xres = 640; -+ info->var.yres = 480; -+ mode = (struct fb_videomode *) -+ fb_find_best_mode(&info->var, &info->modelist); -+ -+ if (mode) { -+ fb_videomode_to_var(&info->var, mode); -+ } else { -+ modeid = par->vbe_modes[0].mode_id; -+ fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60, -+ &info->var, info); -+ goto gotmode; -+ } -+ } -+ -+ /* Look for a matching VBE mode. */ -+ modeid = uvesafb_vbe_find_mode(par, info->var.xres, info->var.yres, -+ info->var.bits_per_pixel, UVESAFB_EXACT_RES); -+ -+ if (modeid == -1) -+ return -EINVAL; -+ -+gotmode: -+ uvesafb_setup_var(&info->var, info, &par->vbe_modes[modeid]); -+ -+ /* -+ * If we are not VBE3.0+ compliant, we're done -- the BIOS will -+ * ignore our timings anyway. -+ */ -+ if (par->vbe_ib.vbe_version < 0x0300 || par->nocrtc) -+ fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60, -+ &info->var, info); -+ -+ return modeid; -+} -+ -+static int uvesafb_setpalette(struct uvesafb_pal_entry *entries, int count, -+ int start, struct fb_info *info) -+{ -+ struct uvesafb_ktask *task; -+ struct uvesafb_par *par = info->par; -+ int i = par->mode_idx; -+ int err = 0; -+ -+ /* -+ * We support palette modifications for 8 bpp modes only, so -+ * there can never be more than 256 entries. -+ */ -+ if (start + count > 256) -+ return -EINVAL; -+ -+ /* Use VGA registers if mode is VGA-compatible. */ -+ if (i >= 0 && i < par->vbe_modes_cnt && -+ par->vbe_modes[i].mode_attr & VBE_MODE_VGACOMPAT) { -+ for (i = 0; i < count; i++) { -+ outb_p(start + i, dac_reg); -+ outb_p(entries[i].red, dac_val); -+ outb_p(entries[i].green, dac_val); -+ outb_p(entries[i].blue, dac_val); -+ } -+ } -+#ifdef CONFIG_X86_32 -+ else if (par->pmi_setpal) { -+ __asm__ __volatile__( -+ "call *(%%esi)" -+ : /* no return value */ -+ : "a" (0x4f09), /* EAX */ -+ "b" (0), /* EBX */ -+ "c" (count), /* ECX */ -+ "d" (start), /* EDX */ -+ "D" (entries), /* EDI */ -+ "S" (&par->pmi_pal)); /* ESI */ -+ } -+#endif -+ else { -+ task = uvesafb_prep(); -+ if (!task) -+ return -ENOMEM; -+ -+ task->t.regs.eax = 0x4f09; -+ task->t.regs.ebx = 0x0; -+ task->t.regs.ecx = count; -+ task->t.regs.edx = start; -+ task->t.flags = TF_BUF_ESDI; -+ task->t.buf_len = sizeof(struct uvesafb_pal_entry) * count; -+ task->buf = entries; -+ -+ err = uvesafb_exec(task); -+ if ((task->t.regs.eax & 0xffff) != 0x004f) -+ err = 1; -+ -+ uvesafb_free(task); -+ } -+ return err; -+} -+ -+static int uvesafb_setcolreg(unsigned regno, unsigned red, unsigned green, -+ unsigned blue, unsigned transp, -+ struct fb_info *info) -+{ -+ struct uvesafb_pal_entry entry; -+ int shift = 16 - info->var.green.length; -+ int err = 0; -+ -+ if (regno >= info->cmap.len) -+ return -EINVAL; -+ -+ if (info->var.bits_per_pixel == 8) { -+ entry.red = red >> shift; -+ entry.green = green >> shift; -+ entry.blue = blue >> shift; -+ entry.pad = 0; -+ -+ err = uvesafb_setpalette(&entry, 1, regno, info); -+ } else if (regno < 16) { -+ switch (info->var.bits_per_pixel) { -+ case 16: -+ if (info->var.red.offset == 10) { -+ /* 1:5:5:5 */ -+ ((u32 *) (info->pseudo_palette))[regno] = -+ ((red & 0xf800) >> 1) | -+ ((green & 0xf800) >> 6) | -+ ((blue & 0xf800) >> 11); -+ } else { -+ /* 0:5:6:5 */ -+ ((u32 *) (info->pseudo_palette))[regno] = -+ ((red & 0xf800) ) | -+ ((green & 0xfc00) >> 5) | -+ ((blue & 0xf800) >> 11); -+ } -+ break; -+ -+ case 24: -+ case 32: -+ red >>= 8; -+ green >>= 8; -+ blue >>= 8; -+ ((u32 *)(info->pseudo_palette))[regno] = -+ (red << info->var.red.offset) | -+ (green << info->var.green.offset) | -+ (blue << info->var.blue.offset); -+ break; -+ } -+ } -+ return err; -+} -+ -+static int uvesafb_setcmap(struct fb_cmap *cmap, struct fb_info *info) -+{ -+ struct uvesafb_pal_entry *entries; -+ int shift = 16 - info->var.green.length; -+ int i, err = 0; -+ -+ if (info->var.bits_per_pixel == 8) { -+ if (cmap->start + cmap->len > info->cmap.start + -+ info->cmap.len || cmap->start < info->cmap.start) -+ return -EINVAL; -+ -+ entries = kmalloc(sizeof(*entries) * cmap->len, GFP_KERNEL); -+ if (!entries) -+ return -ENOMEM; -+ -+ for (i = 0; i < cmap->len; i++) { -+ entries[i].red = cmap->red[i] >> shift; -+ entries[i].green = cmap->green[i] >> shift; -+ entries[i].blue = cmap->blue[i] >> shift; -+ entries[i].pad = 0; -+ } -+ err = uvesafb_setpalette(entries, cmap->len, cmap->start, info); -+ kfree(entries); -+ } else { -+ /* -+ * For modes with bpp > 8, we only set the pseudo palette in -+ * the fb_info struct. We rely on uvesafb_setcolreg to do all -+ * sanity checking. -+ */ -+ for (i = 0; i < cmap->len; i++) { -+ err |= uvesafb_setcolreg(cmap->start + i, cmap->red[i], -+ cmap->green[i], cmap->blue[i], -+ 0, info); -+ } -+ } -+ return err; -+} -+ -+static int uvesafb_pan_display(struct fb_var_screeninfo *var, -+ struct fb_info *info) -+{ -+#ifdef CONFIG_X86_32 -+ int offset; -+ struct uvesafb_par *par = info->par; -+ -+ offset = (var->yoffset * info->fix.line_length + var->xoffset) / 4; -+ -+ /* -+ * It turns out it's not the best idea to do panning via vm86, -+ * so we only allow it if we have a PMI. -+ */ -+ if (par->pmi_start) { -+ __asm__ __volatile__( -+ "call *(%%edi)" -+ : /* no return value */ -+ : "a" (0x4f07), /* EAX */ -+ "b" (0), /* EBX */ -+ "c" (offset), /* ECX */ -+ "d" (offset >> 16), /* EDX */ -+ "D" (&par->pmi_start)); /* EDI */ -+ } -+#endif -+ return 0; -+} -+ -+static int uvesafb_blank(int blank, struct fb_info *info) -+{ -+ struct uvesafb_par *par = info->par; -+ struct uvesafb_ktask *task; -+ int err = 1; -+ -+ if (par->vbe_ib.capabilities & VBE_CAP_VGACOMPAT) { -+ int loop = 10000; -+ u8 seq = 0, crtc17 = 0; -+ -+ if (blank == FB_BLANK_POWERDOWN) { -+ seq = 0x20; -+ crtc17 = 0x00; -+ err = 0; -+ } else { -+ seq = 0x00; -+ crtc17 = 0x80; -+ err = (blank == FB_BLANK_UNBLANK) ? 0 : -EINVAL; -+ } -+ -+ vga_wseq(NULL, 0x00, 0x01); -+ seq |= vga_rseq(NULL, 0x01) & ~0x20; -+ vga_wseq(NULL, 0x00, seq); -+ -+ crtc17 |= vga_rcrt(NULL, 0x17) & ~0x80; -+ while (loop--); -+ vga_wcrt(NULL, 0x17, crtc17); -+ vga_wseq(NULL, 0x00, 0x03); -+ } else { -+ task = uvesafb_prep(); -+ if (!task) -+ return -ENOMEM; -+ -+ task->t.regs.eax = 0x4f10; -+ switch (blank) { -+ case FB_BLANK_UNBLANK: -+ task->t.regs.ebx = 0x0001; -+ break; -+ case FB_BLANK_NORMAL: -+ task->t.regs.ebx = 0x0101; /* standby */ -+ break; -+ case FB_BLANK_POWERDOWN: -+ task->t.regs.ebx = 0x0401; /* powerdown */ -+ break; -+ default: -+ goto out; -+ } -+ -+ err = uvesafb_exec(task); -+ if (err || (task->t.regs.eax & 0xffff) != 0x004f) -+ err = 1; -+out: uvesafb_free(task); -+ } -+ return err; -+} -+ -+static int uvesafb_open(struct fb_info *info, int user) -+{ -+ struct uvesafb_par *par = info->par; -+ int cnt = atomic_read(&par->ref_count); -+ -+ if (!cnt && par->vbe_state_size) -+ par->vbe_state_orig = uvesafb_vbe_state_save(par); -+ -+ atomic_inc(&par->ref_count); -+ return 0; -+} -+ -+static int uvesafb_release(struct fb_info *info, int user) -+{ -+ struct uvesafb_ktask *task = NULL; -+ struct uvesafb_par *par = info->par; -+ int cnt = atomic_read(&par->ref_count); -+ -+ if (!cnt) -+ return -EINVAL; -+ -+ if (cnt != 1) -+ goto out; -+ -+ task = uvesafb_prep(); -+ if (!task) -+ goto out; -+ -+ /* First, try to set the standard 80x25 text mode. */ -+ task->t.regs.eax = 0x0003; -+ uvesafb_exec(task); -+ -+ /* -+ * Now try to restore whatever hardware state we might have -+ * saved when the fb device was first opened. -+ */ -+ uvesafb_vbe_state_restore(par, par->vbe_state_orig); -+out: -+ atomic_dec(&par->ref_count); -+ if (task) -+ uvesafb_free(task); -+ return 0; -+} -+ -+static int uvesafb_set_par(struct fb_info *info) -+{ -+ struct uvesafb_par *par = info->par; -+ struct uvesafb_ktask *task = NULL; -+ struct vbe_crtc_ib *crtc = NULL; -+ struct vbe_mode_ib *mode = NULL; -+ int i, err = 0, depth = info->var.bits_per_pixel; -+ -+ if (depth > 8 && depth != 32) -+ depth = info->var.red.length + info->var.green.length + -+ info->var.blue.length; -+ -+ i = uvesafb_vbe_find_mode(par, info->var.xres, info->var.yres, depth, -+ UVESAFB_EXACT_RES | UVESAFB_EXACT_DEPTH); -+ if (i >= 0) -+ mode = &par->vbe_modes[i]; -+ else -+ return -EINVAL; -+ -+ task = uvesafb_prep(); -+ if (!task) -+ return -ENOMEM; -+setmode: -+ task->t.regs.eax = 0x4f02; -+ task->t.regs.ebx = mode->mode_id | 0x4000; /* use LFB */ -+ -+ if (par->vbe_ib.vbe_version >= 0x0300 && !par->nocrtc && -+ info->var.pixclock != 0) { -+ task->t.regs.ebx |= 0x0800; /* use CRTC data */ -+ task->t.flags = TF_BUF_ESDI; -+ crtc = kzalloc(sizeof(struct vbe_crtc_ib), GFP_KERNEL); -+ if (!crtc) { -+ err = -ENOMEM; -+ goto out; -+ } -+ crtc->horiz_start = info->var.xres + info->var.right_margin; -+ crtc->horiz_end = crtc->horiz_start + info->var.hsync_len; -+ crtc->horiz_total = crtc->horiz_end + info->var.left_margin; -+ -+ crtc->vert_start = info->var.yres + info->var.lower_margin; -+ crtc->vert_end = crtc->vert_start + info->var.vsync_len; -+ crtc->vert_total = crtc->vert_end + info->var.upper_margin; -+ -+ crtc->pixel_clock = PICOS2KHZ(info->var.pixclock) * 1000; -+ crtc->refresh_rate = (u16)(100 * (crtc->pixel_clock / -+ (crtc->vert_total * crtc->horiz_total))); -+ -+ if (info->var.vmode & FB_VMODE_DOUBLE) -+ crtc->flags |= 0x1; -+ if (info->var.vmode & FB_VMODE_INTERLACED) -+ crtc->flags |= 0x2; -+ if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT)) -+ crtc->flags |= 0x4; -+ if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT)) -+ crtc->flags |= 0x8; -+ memcpy(&par->crtc, crtc, sizeof(*crtc)); -+ } else { -+ memset(&par->crtc, 0, sizeof(*crtc)); -+ } -+ -+ task->t.buf_len = sizeof(struct vbe_crtc_ib); -+ task->buf = &par->crtc; -+ -+ err = uvesafb_exec(task); -+ if (err || (task->t.regs.eax & 0xffff) != 0x004f) { -+ /* -+ * The mode switch might have failed because we tried to -+ * use our own timings. Try again with the default timings. -+ */ -+ if (crtc != NULL) { -+ printk(KERN_WARNING "uvesafb: mode switch failed " -+ "(eax=0x%x, err=%d). Trying again with " -+ "default timings.\n", task->t.regs.eax, err); -+ uvesafb_reset(task); -+ kfree(crtc); -+ crtc = NULL; -+ info->var.pixclock = 0; -+ goto setmode; -+ } else { -+ printk(KERN_ERR "uvesafb: mode switch failed (eax=" -+ "0x%x, err=%d)\n", task->t.regs.eax, err); -+ err = -EINVAL; -+ goto out; -+ } -+ } -+ par->mode_idx = i; -+ -+ /* For 8bpp modes, always try to set the DAC to 8 bits. */ -+ if (par->vbe_ib.capabilities & VBE_CAP_CAN_SWITCH_DAC && -+ mode->bits_per_pixel <= 8) { -+ uvesafb_reset(task); -+ task->t.regs.eax = 0x4f08; -+ task->t.regs.ebx = 0x0800; -+ -+ err = uvesafb_exec(task); -+ if (err || (task->t.regs.eax & 0xffff) != 0x004f || -+ ((task->t.regs.ebx & 0xff00) >> 8) != 8) { -+ /* -+ * We've failed to set the DAC palette format - -+ * time to correct var. -+ */ -+ info->var.red.length = 6; -+ info->var.green.length = 6; -+ info->var.blue.length = 6; -+ } -+ } -+ -+ info->fix.visual = (info->var.bits_per_pixel == 8) ? -+ FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; -+ info->fix.line_length = mode->bytes_per_scan_line; -+ -+out: if (crtc != NULL) -+ kfree(crtc); -+ uvesafb_free(task); -+ -+ return err; -+} -+ -+static void uvesafb_check_limits(struct fb_var_screeninfo *var, -+ struct fb_info *info) -+{ -+ const struct fb_videomode *mode; -+ struct uvesafb_par *par = info->par; -+ -+ /* -+ * If pixclock is set to 0, then we're using default BIOS timings -+ * and thus don't have to perform any checks here. -+ */ -+ if (!var->pixclock) -+ return; -+ -+ if (par->vbe_ib.vbe_version < 0x0300) { -+ fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, 60, var, info); -+ return; -+ } -+ -+ if (!fb_validate_mode(var, info)) -+ return; -+ -+ mode = fb_find_best_mode(var, &info->modelist); -+ if (mode) { -+ if (mode->xres == var->xres && mode->yres == var->yres && -+ !(mode->vmode & (FB_VMODE_INTERLACED | FB_VMODE_DOUBLE))) { -+ fb_videomode_to_var(var, mode); -+ return; -+ } -+ } -+ -+ if (info->monspecs.gtf && !fb_get_mode(FB_MAXTIMINGS, 0, var, info)) -+ return; -+ /* Use default refresh rate */ -+ var->pixclock = 0; -+} -+ -+static int uvesafb_check_var(struct fb_var_screeninfo *var, -+ struct fb_info *info) -+{ -+ struct uvesafb_par *par = info->par; -+ struct vbe_mode_ib *mode = NULL; -+ int match = -1; -+ int depth = var->red.length + var->green.length + var->blue.length; -+ -+ /* -+ * Various apps will use bits_per_pixel to set the color depth, -+ * which is theoretically incorrect, but which we'll try to handle -+ * here. -+ */ -+ if (depth == 0 || abs(depth - var->bits_per_pixel) >= 8) -+ depth = var->bits_per_pixel; -+ -+ match = uvesafb_vbe_find_mode(par, var->xres, var->yres, depth, -+ UVESAFB_EXACT_RES); -+ if (match == -1) -+ return -EINVAL; -+ -+ mode = &par->vbe_modes[match]; -+ uvesafb_setup_var(var, info, mode); -+ -+ /* -+ * Check whether we have remapped enough memory for this mode. -+ * We might be called at an early stage, when we haven't remapped -+ * any memory yet, in which case we simply skip the check. -+ */ -+ if (var->yres * mode->bytes_per_scan_line > info->fix.smem_len -+ && info->fix.smem_len) -+ return -EINVAL; -+ -+ if ((var->vmode & FB_VMODE_DOUBLE) && -+ !(par->vbe_modes[match].mode_attr & 0x100)) -+ var->vmode &= ~FB_VMODE_DOUBLE; -+ -+ if ((var->vmode & FB_VMODE_INTERLACED) && -+ !(par->vbe_modes[match].mode_attr & 0x200)) -+ var->vmode &= ~FB_VMODE_INTERLACED; -+ -+ uvesafb_check_limits(var, info); -+ -+ var->xres_virtual = var->xres; -+ var->yres_virtual = (par->ypan) ? -+ info->fix.smem_len / mode->bytes_per_scan_line : -+ var->yres; -+ return 0; -+} -+ -+static void uvesafb_save_state(struct fb_info *info) -+{ -+ struct uvesafb_par *par = info->par; -+ -+ if (par->vbe_state_saved) -+ kfree(par->vbe_state_saved); -+ -+ par->vbe_state_saved = uvesafb_vbe_state_save(par); -+} -+ -+static void uvesafb_restore_state(struct fb_info *info) -+{ -+ struct uvesafb_par *par = info->par; -+ -+ uvesafb_vbe_state_restore(par, par->vbe_state_saved); -+} -+ -+static struct fb_ops uvesafb_ops = { -+ .owner = THIS_MODULE, -+ .fb_open = uvesafb_open, -+ .fb_release = uvesafb_release, -+ .fb_setcolreg = uvesafb_setcolreg, -+ .fb_setcmap = uvesafb_setcmap, -+ .fb_pan_display = uvesafb_pan_display, -+ .fb_blank = uvesafb_blank, -+ .fb_fillrect = cfb_fillrect, -+ .fb_copyarea = cfb_copyarea, -+ .fb_imageblit = cfb_imageblit, -+ .fb_check_var = uvesafb_check_var, -+ .fb_set_par = uvesafb_set_par, -+ .fb_save_state = uvesafb_save_state, -+ .fb_restore_state = uvesafb_restore_state, -+}; -+ -+static void __devinit uvesafb_init_info(struct fb_info *info, -+ struct vbe_mode_ib *mode) -+{ -+ unsigned int size_vmode; -+ unsigned int size_remap; -+ unsigned int size_total; -+ struct uvesafb_par *par = info->par; -+ int i, h; -+ -+ info->pseudo_palette = ((u8 *)info->par + sizeof(struct uvesafb_par)); -+ info->fix = uvesafb_fix; -+ info->fix.ypanstep = par->ypan ? 1 : 0; -+ info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0; -+ -+ /* -+ * If we were unable to get the state buffer size, disable -+ * functions for saving and restoring the hardware state. -+ */ -+ if (par->vbe_state_size == 0) { -+ info->fbops->fb_save_state = NULL; -+ info->fbops->fb_restore_state = NULL; -+ } -+ -+ /* Disable blanking if the user requested so. */ -+ if (!blank) -+ info->fbops->fb_blank = NULL; -+ -+ /* -+ * Find out how much IO memory is required for the mode with -+ * the highest resolution. -+ */ -+ size_remap = 0; -+ for (i = 0; i < par->vbe_modes_cnt; i++) { -+ h = par->vbe_modes[i].bytes_per_scan_line * -+ par->vbe_modes[i].y_res; -+ if (h > size_remap) -+ size_remap = h; -+ } -+ size_remap *= 2; -+ -+ /* -+ * size_vmode -- that is the amount of memory needed for the -+ * used video mode, i.e. the minimum amount of -+ * memory we need. -+ */ -+ if (mode != NULL) { -+ size_vmode = info->var.yres * mode->bytes_per_scan_line; -+ } else { -+ size_vmode = info->var.yres * info->var.xres * -+ ((info->var.bits_per_pixel + 7) >> 3); -+ } -+ -+ /* -+ * size_total -- all video memory we have. Used for mtrr -+ * entries, resource allocation and bounds -+ * checking. -+ */ -+ size_total = par->vbe_ib.total_memory * 65536; -+ if (vram_total) -+ size_total = vram_total * 1024 * 1024; -+ if (size_total < size_vmode) -+ size_total = size_vmode; -+ -+ /* -+ * size_remap -- the amount of video memory we are going to -+ * use for vesafb. With modern cards it is no -+ * option to simply use size_total as th -+ * wastes plenty of kernel address space. -+ */ -+ if (vram_remap) -+ size_remap = vram_remap * 1024 * 1024; -+ if (size_remap < size_vmode) -+ size_remap = size_vmode; -+ if (size_remap > size_total) -+ size_remap = size_total; -+ -+ info->fix.smem_len = size_remap; -+ info->fix.smem_start = mode->phys_base_ptr; -+ -+ /* -+ * We have to set yres_virtual here because when setup_var() was -+ * called, smem_len wasn't defined yet. -+ */ -+ info->var.yres_virtual = info->fix.smem_len / -+ mode->bytes_per_scan_line; -+ -+ if (par->ypan && info->var.yres_virtual > info->var.yres) { -+ printk(KERN_INFO "uvesafb: scrolling: %s " -+ "using protected mode interface, " -+ "yres_virtual=%d\n", -+ (par->ypan > 1) ? "ywrap" : "ypan", -+ info->var.yres_virtual); -+ } else { -+ printk(KERN_INFO "uvesafb: scrolling: redraw\n"); -+ info->var.yres_virtual = info->var.yres; -+ par->ypan = 0; -+ } -+ -+ info->flags = FBINFO_FLAG_DEFAULT | -+ (par->ypan) ? FBINFO_HWACCEL_YPAN : 0; -+ -+ if (!par->ypan) -+ info->fbops->fb_pan_display = NULL; -+} -+ -+static void uvesafb_init_mtrr(struct fb_info *info) -+{ -+#ifdef CONFIG_MTRR -+ if (mtrr && !(info->fix.smem_start & (PAGE_SIZE - 1))) { -+ int temp_size = info->fix.smem_len; -+ unsigned int type = 0; -+ -+ switch (mtrr) { -+ case 1: -+ type = MTRR_TYPE_UNCACHABLE; -+ break; -+ case 2: -+ type = MTRR_TYPE_WRBACK; -+ break; -+ case 3: -+ type = MTRR_TYPE_WRCOMB; -+ break; -+ case 4: -+ type = MTRR_TYPE_WRTHROUGH; -+ break; -+ default: -+ type = 0; -+ break; -+ } -+ -+ if (type) { -+ int rc; -+ -+ /* Find the largest power-of-two */ -+ while (temp_size & (temp_size - 1)) -+ temp_size &= (temp_size - 1); -+ -+ /* Try and find a power of two to add */ -+ do { -+ rc = mtrr_add(info->fix.smem_start, -+ temp_size, type, 1); -+ temp_size >>= 1; -+ } while (temp_size >= PAGE_SIZE && rc == -EINVAL); -+ } -+ } -+#endif /* CONFIG_MTRR */ -+} -+ -+ -+static ssize_t uvesafb_show_vbe_ver(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ struct fb_info *info = platform_get_drvdata(to_platform_device(dev)); -+ struct uvesafb_par *par = info->par; -+ -+ return snprintf(buf, PAGE_SIZE, "%.4x\n", par->vbe_ib.vbe_version); -+} -+ -+static DEVICE_ATTR(vbe_version, S_IRUGO, uvesafb_show_vbe_ver, NULL); -+ -+static ssize_t uvesafb_show_vbe_modes(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ struct fb_info *info = platform_get_drvdata(to_platform_device(dev)); -+ struct uvesafb_par *par = info->par; -+ int ret = 0, i; -+ -+ for (i = 0; i < par->vbe_modes_cnt && ret < PAGE_SIZE; i++) { -+ ret += snprintf(buf + ret, PAGE_SIZE - ret, -+ "%dx%d-%d, 0x%.4x\n", -+ par->vbe_modes[i].x_res, par->vbe_modes[i].y_res, -+ par->vbe_modes[i].depth, par->vbe_modes[i].mode_id); -+ } -+ -+ return ret; -+} -+ -+static DEVICE_ATTR(vbe_modes, S_IRUGO, uvesafb_show_vbe_modes, NULL); -+ -+static ssize_t uvesafb_show_vendor(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ struct fb_info *info = platform_get_drvdata(to_platform_device(dev)); -+ struct uvesafb_par *par = info->par; -+ -+ if (par->vbe_ib.oem_vendor_name_ptr) -+ return snprintf(buf, PAGE_SIZE, "%s\n", (char *) -+ (&par->vbe_ib) + par->vbe_ib.oem_vendor_name_ptr); -+ else -+ return 0; -+} -+ -+static DEVICE_ATTR(oem_vendor, S_IRUGO, uvesafb_show_vendor, NULL); -+ -+static ssize_t uvesafb_show_product_name(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ struct fb_info *info = platform_get_drvdata(to_platform_device(dev)); -+ struct uvesafb_par *par = info->par; -+ -+ if (par->vbe_ib.oem_product_name_ptr) -+ return snprintf(buf, PAGE_SIZE, "%s\n", (char *) -+ (&par->vbe_ib) + par->vbe_ib.oem_product_name_ptr); -+ else -+ return 0; -+} -+ -+static DEVICE_ATTR(oem_product_name, S_IRUGO, uvesafb_show_product_name, NULL); -+ -+static ssize_t uvesafb_show_product_rev(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ struct fb_info *info = platform_get_drvdata(to_platform_device(dev)); -+ struct uvesafb_par *par = info->par; -+ -+ if (par->vbe_ib.oem_product_rev_ptr) -+ return snprintf(buf, PAGE_SIZE, "%s\n", (char *) -+ (&par->vbe_ib) + par->vbe_ib.oem_product_rev_ptr); -+ else -+ return 0; -+} -+ -+static DEVICE_ATTR(oem_product_rev, S_IRUGO, uvesafb_show_product_rev, NULL); -+ -+static ssize_t uvesafb_show_oem_string(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ struct fb_info *info = platform_get_drvdata(to_platform_device(dev)); -+ struct uvesafb_par *par = info->par; -+ -+ if (par->vbe_ib.oem_string_ptr) -+ return snprintf(buf, PAGE_SIZE, "%s\n", -+ (char *)(&par->vbe_ib) + par->vbe_ib.oem_string_ptr); -+ else -+ return 0; -+} -+ -+static DEVICE_ATTR(oem_string, S_IRUGO, uvesafb_show_oem_string, NULL); -+ -+static ssize_t uvesafb_show_nocrtc(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ struct fb_info *info = platform_get_drvdata(to_platform_device(dev)); -+ struct uvesafb_par *par = info->par; -+ -+ return snprintf(buf, PAGE_SIZE, "%d\n", par->nocrtc); -+} -+ -+static ssize_t uvesafb_store_nocrtc(struct device *dev, -+ struct device_attribute *attr, const char *buf, size_t count) -+{ -+ struct fb_info *info = platform_get_drvdata(to_platform_device(dev)); -+ struct uvesafb_par *par = info->par; -+ -+ if (count > 0) { -+ if (buf[0] == '0') -+ par->nocrtc = 0; -+ else -+ par->nocrtc = 1; -+ } -+ return count; -+} -+ -+static DEVICE_ATTR(nocrtc, S_IRUGO | S_IWUSR, uvesafb_show_nocrtc, -+ uvesafb_store_nocrtc); -+ -+static struct attribute *uvesafb_dev_attrs[] = { -+ &dev_attr_vbe_version.attr, -+ &dev_attr_vbe_modes.attr, -+ &dev_attr_oem_vendor.attr, -+ &dev_attr_oem_product_name.attr, -+ &dev_attr_oem_product_rev.attr, -+ &dev_attr_oem_string.attr, -+ &dev_attr_nocrtc.attr, -+ NULL, -+}; -+ -+static struct attribute_group uvesafb_dev_attgrp = { -+ .name = NULL, -+ .attrs = uvesafb_dev_attrs, -+}; -+ -+static int __devinit uvesafb_probe(struct platform_device *dev) -+{ -+ struct fb_info *info; -+ struct vbe_mode_ib *mode = NULL; -+ struct uvesafb_par *par; -+ int err = 0, i; -+ -+ info = framebuffer_alloc(sizeof(*par) + sizeof(u32) * 256, &dev->dev); -+ if (!info) -+ return -ENOMEM; -+ -+ par = info->par; -+ -+ err = uvesafb_vbe_init(info); -+ if (err) { -+ printk(KERN_ERR "uvesafb: vbe_init() failed with %d\n", err); -+ goto out; -+ } -+ -+ info->fbops = &uvesafb_ops; -+ -+ i = uvesafb_vbe_init_mode(info); -+ if (i < 0) { -+ err = -EINVAL; -+ goto out; -+ } else { -+ mode = &par->vbe_modes[i]; -+ } -+ -+ if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { -+ err = -ENXIO; -+ goto out; -+ } -+ -+ uvesafb_init_info(info, mode); -+ -+ if (!request_mem_region(info->fix.smem_start, info->fix.smem_len, -+ "uvesafb")) { -+ printk(KERN_ERR "uvesafb: cannot reserve video memory at " -+ "0x%lx\n", info->fix.smem_start); -+ err = -EIO; -+ goto out_mode; -+ } -+ -+ info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); -+ -+ if (!info->screen_base) { -+ printk(KERN_ERR -+ "uvesafb: abort, cannot ioremap 0x%x bytes of video " -+ "memory at 0x%lx\n", -+ info->fix.smem_len, info->fix.smem_start); -+ err = -EIO; -+ goto out_mem; -+ } -+ -+ if (!request_region(0x3c0, 32, "uvesafb")) { -+ printk(KERN_ERR "uvesafb: request region 0x3c0-0x3e0 failed\n"); -+ err = -EIO; -+ goto out_unmap; -+ } -+ -+ uvesafb_init_mtrr(info); -+ platform_set_drvdata(dev, info); -+ -+ if (register_framebuffer(info) < 0) { -+ printk(KERN_ERR -+ "uvesafb: failed to register framebuffer device\n"); -+ err = -EINVAL; -+ goto out_reg; -+ } -+ -+ printk(KERN_INFO "uvesafb: framebuffer at 0x%lx, mapped to 0x%p, " -+ "using %dk, total %dk\n", info->fix.smem_start, -+ info->screen_base, info->fix.smem_len/1024, -+ par->vbe_ib.total_memory * 64); -+ printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, -+ info->fix.id); -+ -+ err = sysfs_create_group(&dev->dev.kobj, &uvesafb_dev_attgrp); -+ if (err != 0) -+ printk(KERN_WARNING "fb%d: failed to register attributes\n", -+ info->node); -+ -+ return 0; -+ -+out_reg: -+ release_region(0x3c0, 32); -+out_unmap: -+ iounmap(info->screen_base); -+out_mem: -+ release_mem_region(info->fix.smem_start, info->fix.smem_len); -+out_mode: -+ if (!list_empty(&info->modelist)) -+ fb_destroy_modelist(&info->modelist); -+ fb_destroy_modedb(info->monspecs.modedb); -+ fb_dealloc_cmap(&info->cmap); -+out: -+ if (par->vbe_modes) -+ kfree(par->vbe_modes); -+ -+ framebuffer_release(info); -+ return err; -+} -+ -+static int uvesafb_remove(struct platform_device *dev) -+{ -+ struct fb_info *info = platform_get_drvdata(dev); -+ -+ if (info) { -+ struct uvesafb_par *par = info->par; -+ -+ sysfs_remove_group(&dev->dev.kobj, &uvesafb_dev_attgrp); -+ unregister_framebuffer(info); -+ release_region(0x3c0, 32); -+ iounmap(info->screen_base); -+ release_mem_region(info->fix.smem_start, info->fix.smem_len); -+ fb_destroy_modedb(info->monspecs.modedb); -+ fb_dealloc_cmap(&info->cmap); -+ -+ if (par) { -+ if (par->vbe_modes) -+ kfree(par->vbe_modes); -+ if (par->vbe_state_orig) -+ kfree(par->vbe_state_orig); -+ if (par->vbe_state_saved) -+ kfree(par->vbe_state_saved); -+ } -+ -+ framebuffer_release(info); -+ } -+ return 0; -+} -+ -+static struct platform_driver uvesafb_driver = { -+ .probe = uvesafb_probe, -+ .remove = uvesafb_remove, -+ .driver = { -+ .name = "uvesafb", -+ }, -+}; -+ -+static struct platform_device *uvesafb_device; -+ -+#ifndef MODULE -+static int __devinit uvesafb_setup(char *options) -+{ -+ char *this_opt; -+ -+ if (!options || !*options) -+ return 0; -+ -+ while ((this_opt = strsep(&options, ",")) != NULL) { -+ if (!*this_opt) continue; -+ -+ if (!strcmp(this_opt, "redraw")) -+ ypan = 0; -+ else if (!strcmp(this_opt, "ypan")) -+ ypan = 1; -+ else if (!strcmp(this_opt, "ywrap")) -+ ypan = 2; -+ else if (!strcmp(this_opt, "vgapal")) -+ pmi_setpal = 0; -+ else if (!strcmp(this_opt, "pmipal")) -+ pmi_setpal = 1; -+ else if (!strncmp(this_opt, "mtrr:", 5)) -+ mtrr = simple_strtoul(this_opt+5, NULL, 0); -+ else if (!strcmp(this_opt, "nomtrr")) -+ mtrr = 0; -+ else if (!strcmp(this_opt, "nocrtc")) -+ nocrtc = 1; -+ else if (!strcmp(this_opt, "noedid")) -+ noedid = 1; -+ else if (!strcmp(this_opt, "noblank")) -+ blank = 0; -+ else if (!strncmp(this_opt, "vtotal:", 7)) -+ vram_total = simple_strtoul(this_opt + 7, NULL, 0); -+ else if (!strncmp(this_opt, "vremap:", 7)) -+ vram_remap = simple_strtoul(this_opt + 7, NULL, 0); -+ else if (!strncmp(this_opt, "maxhf:", 6)) -+ maxhf = simple_strtoul(this_opt + 6, NULL, 0); -+ else if (!strncmp(this_opt, "maxvf:", 6)) -+ maxvf = simple_strtoul(this_opt + 6, NULL, 0); -+ else if (!strncmp(this_opt, "maxclk:", 7)) -+ maxclk = simple_strtoul(this_opt + 7, NULL, 0); -+ else if (!strncmp(this_opt, "vbemode:", 8)) -+ vbemode = simple_strtoul(this_opt + 8, NULL, 0); -+ else if (this_opt[0] >= '0' && this_opt[0] <= '9') { -+ mode_option = this_opt; -+ } else { -+ printk(KERN_WARNING -+ "uvesafb: unrecognized option %s\n", this_opt); -+ } -+ } -+ -+ return 0; -+} -+#endif /* !MODULE */ -+ -+static ssize_t show_v86d(struct device_driver *dev, char *buf) -+{ -+ return snprintf(buf, PAGE_SIZE, "%s\n", v86d_path); -+} -+ -+static ssize_t store_v86d(struct device_driver *dev, const char *buf, -+ size_t count) -+{ -+ strncpy(v86d_path, buf, PATH_MAX); -+ return count; -+} -+ -+static DRIVER_ATTR(v86d, S_IRUGO | S_IWUSR, show_v86d, store_v86d); -+ -+static int __devinit uvesafb_init(void) -+{ -+ int err; -+ -+#ifndef MODULE -+ char *option = NULL; -+ -+ if (fb_get_options("uvesafb", &option)) -+ return -ENODEV; -+ uvesafb_setup(option); -+#endif -+ err = cn_add_callback(&uvesafb_cn_id, "uvesafb", uvesafb_cn_callback); -+ if (err) -+ return err; -+ -+ err = platform_driver_register(&uvesafb_driver); -+ -+ if (!err) { -+ uvesafb_device = platform_device_alloc("uvesafb", 0); -+ if (uvesafb_device) -+ err = platform_device_add(uvesafb_device); -+ else -+ err = -ENOMEM; -+ -+ if (err) { -+ platform_device_put(uvesafb_device); -+ platform_driver_unregister(&uvesafb_driver); -+ cn_del_callback(&uvesafb_cn_id); -+ return err; -+ } -+ -+ err = driver_create_file(&uvesafb_driver.driver, -+ &driver_attr_v86d); -+ if (err) { -+ printk(KERN_WARNING "uvesafb: failed to register " -+ "attributes\n"); -+ err = 0; -+ } -+ } -+ return err; -+} -+ -+module_init(uvesafb_init); -+ -+static void __devexit uvesafb_exit(void) -+{ -+ struct uvesafb_ktask *task; -+ -+ if (v86d_started) { -+ task = uvesafb_prep(); -+ if (task) { -+ task->t.flags = TF_EXIT; -+ uvesafb_exec(task); -+ uvesafb_free(task); -+ } -+ } -+ -+ cn_del_callback(&uvesafb_cn_id); -+ driver_remove_file(&uvesafb_driver.driver, &driver_attr_v86d); -+ platform_device_unregister(uvesafb_device); -+ platform_driver_unregister(&uvesafb_driver); -+} -+ -+module_exit(uvesafb_exit); -+ -+static inline int param_get_scroll(char *buffer, struct kernel_param *kp) -+{ -+ return 0; -+} -+ -+static inline int param_set_scroll(const char *val, struct kernel_param *kp) -+{ -+ ypan = 0; -+ -+ if (!strcmp(val, "redraw")) -+ ypan = 0; -+ else if (!strcmp(val, "ypan")) -+ ypan = 1; -+ else if (!strcmp(val, "ywrap")) -+ ypan = 2; -+ -+ return 0; -+} -+ -+#define param_check_scroll(name, p) __param_check(name, p, void); -+ -+module_param_named(scroll, ypan, scroll, 0); -+MODULE_PARM_DESC(scroll, -+ "Scrolling mode, set to 'redraw', ''ypan' or 'ywrap'"); -+module_param_named(vgapal, pmi_setpal, invbool, 0); -+MODULE_PARM_DESC(vgapal, "Set palette using VGA registers"); -+module_param_named(pmipal, pmi_setpal, bool, 0); -+MODULE_PARM_DESC(pmipal, "Set palette using PMI calls"); -+module_param(mtrr, uint, 0); -+MODULE_PARM_DESC(mtrr, -+ "Memory Type Range Registers setting. Use 0 to disable."); -+module_param(blank, bool, 0); -+MODULE_PARM_DESC(blank, "Enable hardware blanking"); -+module_param(nocrtc, bool, 0); -+MODULE_PARM_DESC(nocrtc, "Ignore CRTC timings when setting modes"); -+module_param(noedid, bool, 0); -+MODULE_PARM_DESC(noedid, -+ "Ignore EDID-provided monitor limits when setting modes"); -+module_param(vram_remap, uint, 0); -+MODULE_PARM_DESC(vram_remap, "Set amount of video memory to be used [MiB]"); -+module_param(vram_total, uint, 0); -+MODULE_PARM_DESC(vram_total, "Set total amount of video memoery [MiB]"); -+module_param(maxclk, ushort, 0); -+MODULE_PARM_DESC(maxclk, "Maximum pixelclock [MHz], overrides EDID data"); -+module_param(maxhf, ushort, 0); -+MODULE_PARM_DESC(maxhf, -+ "Maximum horizontal frequency [kHz], overrides EDID data"); -+module_param(maxvf, ushort, 0); -+MODULE_PARM_DESC(maxvf, -+ "Maximum vertical frequency [Hz], overrides EDID data"); -+module_param_named(mode, mode_option, charp, 0); -+MODULE_PARM_DESC(mode, -+ "Specify initial video mode as \"<xres>x<yres>[-<bpp>][@<refresh>]\""); -+module_param(vbemode, ushort, 0); -+MODULE_PARM_DESC(vbemode, -+ "VBE mode number to set, overrides the 'mode' option"); -+module_param_string(v86d, v86d_path, PATH_MAX, 0660); -+MODULE_PARM_DESC(v86d, "Path to the v86d userspace helper."); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Michal Januszewski <spock@gentoo.org>"); -+MODULE_DESCRIPTION("Framebuffer driver for VBE2.0+ compliant graphics boards"); -+ -Index: linux-2.6.22/include/linux/connector.h -=================================================================== ---- linux-2.6.22.orig/include/linux/connector.h 2007-08-28 21:54:13.000000000 +0100 -+++ linux-2.6.22/include/linux/connector.h 2007-08-28 21:56:34.000000000 +0100 -@@ -36,14 +36,15 @@ - #define CN_VAL_CIFS 0x1 - #define CN_W1_IDX 0x3 /* w1 communication */ - #define CN_W1_VAL 0x1 -+#define CN_IDX_V86D 0x4 -+#define CN_VAL_V86D_UVESAFB 0x1 - -- --#define CN_NETLINK_USERS 4 -+#define CN_NETLINK_USERS 5 - - /* - * Maximum connector's message size. - */ --#define CONNECTOR_MAX_MSG_SIZE 1024 -+#define CONNECTOR_MAX_MSG_SIZE 16384 - - /* - * idx and val are unique identifiers which -Index: linux-2.6.22/include/video/Kbuild -=================================================================== ---- linux-2.6.22.orig/include/video/Kbuild 2007-08-28 21:54:13.000000000 +0100 -+++ linux-2.6.22/include/video/Kbuild 2007-08-28 21:56:34.000000000 +0100 -@@ -1 +1 @@ --unifdef-y += sisfb.h -+unifdef-y += sisfb.h uvesafb.h -Index: linux-2.6.22/include/video/uvesafb.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/include/video/uvesafb.h 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,193 @@ -+#ifndef _UVESAFB_H -+#define _UVESAFB_H -+ -+struct v86_regs { -+ __u32 ebx; -+ __u32 ecx; -+ __u32 edx; -+ __u32 esi; -+ __u32 edi; -+ __u32 ebp; -+ __u32 eax; -+ __u32 eip; -+ __u32 eflags; -+ __u32 esp; -+ __u16 cs; -+ __u16 ss; -+ __u16 es; -+ __u16 ds; -+ __u16 fs; -+ __u16 gs; -+}; -+ -+/* Task flags */ -+#define TF_VBEIB 0x01 -+#define TF_BUF_ESDI 0x02 -+#define TF_BUF_ESBX 0x04 -+#define TF_BUF_RET 0x08 -+#define TF_EXIT 0x10 -+ -+struct uvesafb_task { -+ __u8 flags; -+ int buf_len; -+ struct v86_regs regs; -+}; -+ -+/* Constants for the capabilities field -+ * in vbe_ib */ -+#define VBE_CAP_CAN_SWITCH_DAC 0x01 -+#define VBE_CAP_VGACOMPAT 0x02 -+ -+/* The VBE Info Block */ -+struct vbe_ib { -+ char vbe_signature[4]; -+ __u16 vbe_version; -+ __u32 oem_string_ptr; -+ __u32 capabilities; -+ __u32 mode_list_ptr; -+ __u16 total_memory; -+ __u16 oem_software_rev; -+ __u32 oem_vendor_name_ptr; -+ __u32 oem_product_name_ptr; -+ __u32 oem_product_rev_ptr; -+ __u8 reserved[222]; -+ char oem_data[256]; -+ char misc_data[512]; -+} __attribute__ ((packed)); -+ -+#ifdef __KERNEL__ -+ -+/* VBE CRTC Info Block */ -+struct vbe_crtc_ib { -+ u16 horiz_total; -+ u16 horiz_start; -+ u16 horiz_end; -+ u16 vert_total; -+ u16 vert_start; -+ u16 vert_end; -+ u8 flags; -+ u32 pixel_clock; -+ u16 refresh_rate; -+ u8 reserved[40]; -+} __attribute__ ((packed)); -+ -+#define VBE_MODE_VGACOMPAT 0x20 -+#define VBE_MODE_COLOR 0x08 -+#define VBE_MODE_SUPPORTEDHW 0x01 -+#define VBE_MODE_GRAPHICS 0x10 -+#define VBE_MODE_LFB 0x80 -+ -+#define VBE_MODE_MASK (VBE_MODE_COLOR | VBE_MODE_SUPPORTEDHW | \ -+ VBE_MODE_GRAPHICS | VBE_MODE_LFB) -+ -+/* VBE Mode Info Block */ -+struct vbe_mode_ib { -+ /* for all VBE revisions */ -+ u16 mode_attr; -+ u8 winA_attr; -+ u8 winB_attr; -+ u16 win_granularity; -+ u16 win_size; -+ u16 winA_seg; -+ u16 winB_seg; -+ u32 win_func_ptr; -+ u16 bytes_per_scan_line; -+ -+ /* for VBE 1.2+ */ -+ u16 x_res; -+ u16 y_res; -+ u8 x_char_size; -+ u8 y_char_size; -+ u8 planes; -+ u8 bits_per_pixel; -+ u8 banks; -+ u8 memory_model; -+ u8 bank_size; -+ u8 image_pages; -+ u8 reserved1; -+ -+ /* Direct color fields for direct/6 and YUV/7 memory models. */ -+ /* Offsets are bit positions of lsb in the mask. */ -+ u8 red_len; -+ u8 red_off; -+ u8 green_len; -+ u8 green_off; -+ u8 blue_len; -+ u8 blue_off; -+ u8 rsvd_len; -+ u8 rsvd_off; -+ u8 direct_color_info; /* direct color mode attributes */ -+ -+ /* for VBE 2.0+ */ -+ u32 phys_base_ptr; -+ u8 reserved2[6]; -+ -+ /* for VBE 3.0+ */ -+ u16 lin_bytes_per_scan_line; -+ u8 bnk_image_pages; -+ u8 lin_image_pages; -+ u8 lin_red_len; -+ u8 lin_red_off; -+ u8 lin_green_len; -+ u8 lin_green_off; -+ u8 lin_blue_len; -+ u8 lin_blue_off; -+ u8 lin_rsvd_len; -+ u8 lin_rsvd_off; -+ u32 max_pixel_clock; -+ u16 mode_id; -+ u8 depth; -+} __attribute__ ((packed)); -+ -+#define UVESAFB_DEFAULT_MODE "640x480-16" -+ -+/* How long to wait for a reply from userspace [ms] */ -+#define UVESAFB_TIMEOUT 5000 -+ -+/* Max number of concurrent tasks */ -+#define UVESAFB_TASKS_MAX 16 -+ -+#define dac_reg (0x3c8) -+#define dac_val (0x3c9) -+ -+struct uvesafb_pal_entry { -+ u_char blue, green, red, pad; -+} __attribute__ ((packed)); -+ -+struct uvesafb_ktask { -+ struct uvesafb_task t; -+ void *buf; -+ struct completion *done; -+ u32 ack; -+}; -+ -+static int uvesafb_exec(struct uvesafb_ktask *tsk); -+ -+#define UVESAFB_EXACT_RES 1 -+#define UVESAFB_EXACT_DEPTH 2 -+ -+struct uvesafb_par { -+ struct vbe_ib vbe_ib; /* VBE Info Block */ -+ struct vbe_mode_ib *vbe_modes; /* list of supported VBE modes */ -+ int vbe_modes_cnt; -+ -+ u8 nocrtc; -+ u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */ -+ u8 pmi_setpal; /* PMI for palette changes */ -+ u16 *pmi_base; /* protected mode interface location */ -+ void *pmi_start; -+ void *pmi_pal; -+ u8 *vbe_state_orig; /* -+ * original hardware state, before the -+ * driver was loaded -+ */ -+ u8 *vbe_state_saved; /* state saved by fb_save_state */ -+ int vbe_state_size; -+ atomic_t ref_count; -+ -+ int mode_idx; -+ struct vbe_crtc_ib crtc; -+}; -+ -+#endif /* __KERNEL__ */ -+#endif /* _UVESAFB_H */ |