diff options
Diffstat (limited to 'drivers/staging/udlfb/udlfb.c')
| -rw-r--r-- | drivers/staging/udlfb/udlfb.c | 938 |
1 files changed, 0 insertions, 938 deletions
diff --git a/drivers/staging/udlfb/udlfb.c b/drivers/staging/udlfb/udlfb.c deleted file mode 100644 index f5416af1e90..00000000000 --- a/drivers/staging/udlfb/udlfb.c +++ /dev/null @@ -1,938 +0,0 @@ -/***************************************************************************** - * DLFB Kernel Driver * - * Version 0.2 (udlfb) * - * (C) 2009 Roberto De Ioris <roberto@unbit.it> * - * * - * This file is licensed under the GPLv2. See COPYING in the package. * - * Based on the amazing work of Florian Echtler and libdlo 0.1 * - * * - * * - * 10.06.09 release 0.2.3 (edid ioctl, fallback for unsupported modes) * - * 05.06.09 release 0.2.2 (real screen blanking, rle compression, double buffer) * - * 31.05.09 release 0.2 * - * 22.05.09 First public (ugly) release * - *****************************************************************************/ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/usb.h> -#include <linux/uaccess.h> -#include <linux/mm.h> -#include <linux/fb.h> -#include <linux/mutex.h> -#include <linux/vmalloc.h> - -#include "udlfb.h" - -#define DRIVER_VERSION "DLFB 0.2" - -/* memory functions taken from vfb */ - -static void *rvmalloc(unsigned long size) -{ - void *mem; - unsigned long adr; - - size = PAGE_ALIGN(size); - mem = vmalloc_32(size); - if (!mem) - return NULL; - - memset(mem, 0, size); /* Clear the ram out, no junk to the user */ - adr = (unsigned long)mem; - while (size > 0) { - SetPageReserved(vmalloc_to_page((void *)adr)); - adr += PAGE_SIZE; - size -= PAGE_SIZE; - } - - return mem; -} - -static void rvfree(void *mem, unsigned long size) -{ - unsigned long adr; - - if (!mem) - return; - - adr = (unsigned long)mem; - while ((long)size > 0) { - ClearPageReserved(vmalloc_to_page((void *)adr)); - adr += PAGE_SIZE; - size -= PAGE_SIZE; - } - vfree(mem); -} - -static int dlfb_mmap(struct fb_info *info, struct vm_area_struct *vma) -{ - unsigned long start = vma->vm_start; - unsigned long size = vma->vm_end - vma->vm_start; - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; - unsigned long page, pos; - - printk("MMAP: %lu %u\n", offset + size, info->fix.smem_len); - - if (offset + size > info->fix.smem_len) - return -EINVAL; - - pos = (unsigned long)info->fix.smem_start + offset; - - while (size > 0) { - page = vmalloc_to_pfn((void *)pos); - if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) - return -EAGAIN; - - start += PAGE_SIZE; - pos += PAGE_SIZE; - if (size > PAGE_SIZE) - size -= PAGE_SIZE; - else - size = 0; - } - - vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ - return 0; - -} - -/* ioctl structure */ -struct dloarea { - int x, y; - int w, h; - int x2, y2; -}; - -/* -static struct usb_device_id id_table [] = { - { USB_DEVICE(0x17e9, 0x023d) }, - { } -}; -*/ - -static struct usb_device_id id_table[] = { - {.idVendor = 0x17e9, .match_flags = USB_DEVICE_ID_MATCH_VENDOR,}, - {}, -}; -MODULE_DEVICE_TABLE(usb, id_table); - -static struct usb_driver dlfb_driver; - -// thanks to Henrik Bjerregaard Pedersen for this function -static char *rle_compress16(uint16_t * src, char *dst, int rem) -{ - - int rl; - uint16_t pix0; - char *end_if_raw = dst + 6 + 2 * rem; - - dst += 6; // header will be filled in if RLE is worth it - - while (rem && dst < end_if_raw) { - char *start = (char *)src; - - pix0 = *src++; - rl = 1; - rem--; - while (rem && *src == pix0) - rem--, rl++, src++; - *dst++ = rl; - *dst++ = start[1]; - *dst++ = start[0]; - } - - return dst; -} - -/* -Thanks to Henrik Bjerregaard Pedersen for rle implementation and code refactoring. -Next step is huffman compression. -*/ - -static int -image_blit(struct dlfb_data *dev_info, int x, int y, int width, int height, - char *data) -{ - - int i, j, base; - int rem = width; - int ret; - - int firstdiff, thistime; - - char *bufptr; - - if (x + width > dev_info->info->var.xres) - return -EINVAL; - - if (y + height > dev_info->info->var.yres) - return -EINVAL; - - mutex_lock(&dev_info->bulk_mutex); - - base = - dev_info->base16 + ((dev_info->info->var.xres * 2 * y) + (x * 2)); - - data += (dev_info->info->var.xres * 2 * y) + (x * 2); - - /* printk("IMAGE_BLIT\n"); */ - - bufptr = dev_info->buf; - - for (i = y; i < y + height; i++) { - - if (dev_info->bufend - bufptr < BUF_HIGH_WATER_MARK) { - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - bufptr = dev_info->buf; - } - - rem = width; - - /* printk("WRITING LINE %d\n", i); */ - - while (rem) { - - if (dev_info->bufend - bufptr < BUF_HIGH_WATER_MARK) { - ret = - dlfb_bulk_msg(dev_info, - bufptr - dev_info->buf); - bufptr = dev_info->buf; - } - // number of pixels to consider this time - thistime = rem; - if (thistime > 255) - thistime = 255; - - // find position of first pixel that has changed - firstdiff = -1; - for (j = 0; j < thistime * 2; j++) { - if (dev_info->backing_buffer - [base - dev_info->base16 + j] != data[j]) { - firstdiff = j / 2; - break; - } - } - - if (firstdiff >= 0) { - char *end_of_rle; - - end_of_rle = - rle_compress16((uint16_t *) (data + - firstdiff * 2), - bufptr, - thistime - firstdiff); - - if (end_of_rle < - bufptr + 6 + 2 * (thistime - firstdiff)) { - bufptr[0] = 0xAF; - bufptr[1] = 0x69; - - bufptr[2] = - (char)((base + - firstdiff * 2) >> 16); - bufptr[3] = - (char)((base + firstdiff * 2) >> 8); - bufptr[4] = - (char)(base + firstdiff * 2); - bufptr[5] = thistime - firstdiff; - - bufptr = end_of_rle; - - } else { - // fallback to raw (or some other encoding?) - *bufptr++ = 0xAF; - *bufptr++ = 0x68; - - *bufptr++ = - (char)((base + - firstdiff * 2) >> 16); - *bufptr++ = - (char)((base + firstdiff * 2) >> 8); - *bufptr++ = - (char)(base + firstdiff * 2); - *bufptr++ = thistime - firstdiff; - // PUT COMPRESSION HERE - for (j = firstdiff * 2; - j < thistime * 2; j += 2) { - *bufptr++ = data[j + 1]; - *bufptr++ = data[j]; - } - } - } - - base += thistime * 2; - data += thistime * 2; - rem -= thistime; - } - - memcpy(dev_info->backing_buffer + (base - dev_info->base16) - - (width * 2), data - (width * 2), width * 2); - - base += (dev_info->info->var.xres * 2) - (width * 2); - data += (dev_info->info->var.xres * 2) - (width * 2); - - } - - if (bufptr > dev_info->buf) { - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - } - - mutex_unlock(&dev_info->bulk_mutex); - - return base; - -} - -static int -draw_rect(struct dlfb_data *dev_info, int x, int y, int width, int height, - unsigned char red, unsigned char green, unsigned char blue) -{ - - int i, j, base; - int ret; - unsigned short col = - (((((red) & 0xF8) | ((green) >> 5)) & 0xFF) << 8) + - (((((green) & 0x1C) << 3) | ((blue) >> 3)) & 0xFF); - int rem = width; - - char *bufptr; - - if (x + width > dev_info->info->var.xres) - return -EINVAL; - - if (y + height > dev_info->info->var.yres) - return -EINVAL; - - mutex_lock(&dev_info->bulk_mutex); - - base = dev_info->base16 + (dev_info->info->var.xres * 2 * y) + (x * 2); - - bufptr = dev_info->buf; - - for (i = y; i < y + height; i++) { - - for (j = 0; j < width * 2; j += 2) { - dev_info->backing_buffer[base - dev_info->base16 + j] = - (char)(col >> 8); - dev_info->backing_buffer[base - dev_info->base16 + j + - 1] = (char)(col); - } - if (dev_info->bufend - bufptr < BUF_HIGH_WATER_MARK) { - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - bufptr = dev_info->buf; - } - - rem = width; - - while (rem) { - - if (dev_info->bufend - bufptr < BUF_HIGH_WATER_MARK) { - ret = - dlfb_bulk_msg(dev_info, - bufptr - dev_info->buf); - bufptr = dev_info->buf; - } - - *bufptr++ = 0xAF; - *bufptr++ = 0x69; - - *bufptr++ = (char)(base >> 16); - *bufptr++ = (char)(base >> 8); - *bufptr++ = (char)(base); - - if (rem > 255) { - *bufptr++ = 255; - *bufptr++ = 255; - rem -= 255; - base += 255 * 2; - } else { - *bufptr++ = rem; - *bufptr++ = rem; - base += rem * 2; - rem = 0; - } - - *bufptr++ = (char)(col >> 8); - *bufptr++ = (char)(col); - - } - - base += (dev_info->info->var.xres * 2) - (width * 2); - - } - - if (bufptr > dev_info->buf) - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - - mutex_unlock(&dev_info->bulk_mutex); - - return 1; -} - -static void swapfb(struct dlfb_data *dev_info) -{ - - int tmpbase; - char *bufptr; - - mutex_lock(&dev_info->bulk_mutex); - - tmpbase = dev_info->base16; - - dev_info->base16 = dev_info->base16d; - dev_info->base16d = tmpbase; - - bufptr = dev_info->buf; - - bufptr = dlfb_set_register(bufptr, 0xFF, 0x00); - - // set addresses - bufptr = - dlfb_set_register(bufptr, 0x20, (char)(dev_info->base16 >> 16)); - bufptr = dlfb_set_register(bufptr, 0x21, (char)(dev_info->base16 >> 8)); - bufptr = dlfb_set_register(bufptr, 0x22, (char)(dev_info->base16)); - - bufptr = dlfb_set_register(bufptr, 0xFF, 0x00); - - dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - - mutex_unlock(&dev_info->bulk_mutex); -} - -static int copyfb(struct dlfb_data *dev_info) -{ - int base; - int source; - int rem; - int i, ret; - - char *bufptr; - - base = dev_info->base16d; - - mutex_lock(&dev_info->bulk_mutex); - - source = dev_info->base16; - - bufptr = dev_info->buf; - - for (i = 0; i < dev_info->info->var.yres; i++) { - - if (dev_info->bufend - bufptr < BUF_HIGH_WATER_MARK) { - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - bufptr = dev_info->buf; - } - - rem = dev_info->info->var.xres; - - while (rem) { - - if (dev_info->bufend - bufptr < BUF_HIGH_WATER_MARK) { - ret = - dlfb_bulk_msg(dev_info, - bufptr - dev_info->buf); - bufptr = dev_info->buf; - - } - - *bufptr++ = 0xAF; - *bufptr++ = 0x6A; - - *bufptr++ = (char)(base >> 16); - *bufptr++ = (char)(base >> 8); - *bufptr++ = (char)(base); - - if (rem > 255) { - *bufptr++ = 255; - *bufptr++ = (char)(source >> 16); - *bufptr++ = (char)(source >> 8); - *bufptr++ = (char)(source); - - rem -= 255; - base += 255 * 2; - source += 255 * 2; - - } else { - *bufptr++ = rem; - *bufptr++ = (char)(source >> 16); - *bufptr++ = (char)(source >> 8); - *bufptr++ = (char)(source); - - base += rem * 2; - source += rem * 2; - rem = 0; - } - } - } - - if (bufptr > dev_info->buf) - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - - mutex_unlock(&dev_info->bulk_mutex); - - return 1; - -} - -static int -copyarea(struct dlfb_data *dev_info, int dx, int dy, int sx, int sy, - int width, int height) -{ - int base; - int source; - int rem; - int i, ret; - - char *bufptr; - - if (dx + width > dev_info->info->var.xres) - return -EINVAL; - - if (dy + height > dev_info->info->var.yres) - return -EINVAL; - - mutex_lock(&dev_info->bulk_mutex); - - base = - dev_info->base16 + (dev_info->info->var.xres * 2 * dy) + (dx * 2); - source = (dev_info->info->var.xres * 2 * sy) + (sx * 2); - - bufptr = dev_info->buf; - - for (i = sy; i < sy + height; i++) { - - memcpy(dev_info->backing_buffer + base - dev_info->base16, - dev_info->backing_buffer + source, width * 2); - - if (dev_info->bufend - bufptr < BUF_HIGH_WATER_MARK) { - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - bufptr = dev_info->buf; - } - - rem = width; - - while (rem) { - - if (dev_info->bufend - bufptr < BUF_HIGH_WATER_MARK) { - ret = - dlfb_bulk_msg(dev_info, - bufptr - dev_info->buf); - bufptr = dev_info->buf; - } - - *bufptr++ = 0xAF; - *bufptr++ = 0x6A; - - *bufptr++ = (char)(base >> 16); - *bufptr++ = (char)(base >> 8); - *bufptr++ = (char)(base); - - if (rem > 255) { - *bufptr++ = 255; - *bufptr++ = (char)(source >> 16); - *bufptr++ = (char)(source >> 8); - *bufptr++ = (char)(source); - - rem -= 255; - base += 255 * 2; - source += 255 * 2; - - } else { - *bufptr++ = rem; - *bufptr++ = (char)(source >> 16); - *bufptr++ = (char)(source >> 8); - *bufptr++ = (char)(source); - - base += rem * 2; - source += rem * 2; - rem = 0; - } - } - - base += (dev_info->info->var.xres * 2) - (width * 2); - source += (dev_info->info->var.xres * 2) - (width * 2); - } - - if (bufptr > dev_info->buf) - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - - mutex_unlock(&dev_info->bulk_mutex); - - return 1; -} - -static void dlfb_copyarea(struct fb_info *info, const struct fb_copyarea *area) -{ - - struct dlfb_data *dev = info->par; - - copyarea(dev, area->dx, area->dy, area->sx, area->sy, area->width, - area->height); - - /* printk("COPY AREA %d %d %d %d %d %d !!!\n", area->dx, area->dy, area->sx, area->sy, area->width, area->height); */ - -} - -static void dlfb_imageblit(struct fb_info *info, const struct fb_image *image) -{ - - int ret; - struct dlfb_data *dev = info->par; - /* printk("IMAGE BLIT (1) %d %d %d %d DEPTH %d {%p}!!!\n", image->dx, image->dy, image->width, image->height, image->depth, dev->udev); */ - cfb_imageblit(info, image); - ret = - image_blit(dev, image->dx, image->dy, image->width, image->height, - info->screen_base); - /* printk("IMAGE BLIT (2) %d %d %d %d DEPTH %d {%p} %d!!!\n", image->dx, image->dy, image->width, image->height, image->depth, dev->udev, ret); */ -} - -static void dlfb_fillrect(struct fb_info *info, - const struct fb_fillrect *region) -{ - - unsigned char red, green, blue; - struct dlfb_data *dev = info->par; - - memcpy(&red, ®ion->color, 1); - memcpy(&green, ®ion->color + 1, 1); - memcpy(&blue, ®ion->color + 2, 1); - draw_rect(dev, region->dx, region->dy, region->width, region->height, - red, green, blue); - /* printk("FILL RECT %d %d !!!\n", region->dx, region->dy); */ - -} - -static int dlfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) -{ - - struct dlfb_data *dev_info = info->par; - struct dloarea *area = NULL; - - if (cmd == 0xAD) { - char *edid = (char *)arg; - dlfb_edid(dev_info); - if (copy_to_user(edid, dev_info->edid, 128)) { - return -EFAULT; - } - return 0; - } - - if (cmd == 0xAA || cmd == 0xAB || cmd == 0xAC) { - - area = (struct dloarea *)arg; - - if (area->x < 0) - area->x = 0; - - if (area->x > info->var.xres) - area->x = info->var.xres; - - if (area->y < 0) - area->y = 0; - - if (area->y > info->var.yres) - area->y = info->var.yres; - } - - if (cmd == 0xAA) { - image_blit(dev_info, area->x, area->y, area->w, area->h, - info->screen_base); - } - if (cmd == 0xAC) { - copyfb(dev_info); - image_blit(dev_info, area->x, area->y, area->w, area->h, - info->screen_base); - swapfb(dev_info); - } else if (cmd == 0xAB) { - - if (area->x2 < 0) - area->x2 = 0; - - if (area->y2 < 0) - area->y2 = 0; - - copyarea(dev_info, - area->x2, area->y2, area->x, area->y, area->w, - area->h); - } - return 0; -} - -/* taken from vesafb */ - -static int -dlfb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, struct fb_info *info) -{ - int err = 0; - - if (regno >= info->cmap.len) - return 1; - - if (regno < 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); - } - } - - return err; -} - -static int dlfb_release(struct fb_info *info, int user) -{ - struct dlfb_data *dev_info = info->par; - image_blit(dev_info, 0, 0, info->var.xres, info->var.yres, - info->screen_base); - return 0; -} - -static int dlfb_blank(int blank_mode, struct fb_info *info) -{ - struct dlfb_data *dev_info = info->par; - char *bufptr = dev_info->buf; - - bufptr = dlfb_set_register(bufptr, 0xFF, 0x00); - if (blank_mode != FB_BLANK_UNBLANK) { - bufptr = dlfb_set_register(bufptr, 0x1F, 0x01); - } else { - bufptr = dlfb_set_register(bufptr, 0x1F, 0x00); - } - bufptr = dlfb_set_register(bufptr, 0xFF, 0xFF); - - dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - - return 0; -} - -static struct fb_ops dlfb_ops = { - .fb_setcolreg = dlfb_setcolreg, - .fb_fillrect = dlfb_fillrect, - .fb_copyarea = dlfb_copyarea, - .fb_imageblit = dlfb_imageblit, - .fb_mmap = dlfb_mmap, - .fb_ioctl = dlfb_ioctl, - .fb_release = dlfb_release, - .fb_blank = dlfb_blank, -}; - -static int -dlfb_probe(struct usb_interface *interface, const struct usb_device_id *id) -{ - struct dlfb_data *dev_info; - struct fb_info *info; - - int ret; - char rbuf[4]; - - dev_info = kzalloc(sizeof(*dev_info), GFP_KERNEL); - if (dev_info == NULL) { - printk("cannot allocate dev_info structure.\n"); - return -ENOMEM; - } - - mutex_init(&dev_info->bulk_mutex); - - dev_info->udev = usb_get_dev(interface_to_usbdev(interface)); - dev_info->interface = interface; - - printk("DisplayLink device attached\n"); - - /* add framebuffer info to usb interface */ - usb_set_intfdata(interface, dev_info); - - dev_info->buf = kmalloc(BUF_SIZE, GFP_KERNEL); - /* usb_buffer_alloc(dev_info->udev, BUF_SIZE , GFP_KERNEL, &dev_info->tx_urb->transfer_dma); */ - - if (dev_info->buf == NULL) { - printk("unable to allocate memory for dlfb commands\n"); - goto out; - } - dev_info->bufend = dev_info->buf + BUF_SIZE; - - dev_info->tx_urb = usb_alloc_urb(0, GFP_KERNEL); - usb_fill_bulk_urb(dev_info->tx_urb, dev_info->udev, - usb_sndbulkpipe(dev_info->udev, 1), dev_info->buf, 0, - dlfb_bulk_callback, dev_info); - - ret = - usb_control_msg(dev_info->udev, usb_rcvctrlpipe(dev_info->udev, 0), - (0x06), (0x80 | (0x02 << 5)), 0, 0, rbuf, 4, 0); - printk("ret control msg 0: %d %x%x%x%x\n", ret, rbuf[0], rbuf[1], - rbuf[2], rbuf[3]); - - dlfb_edid(dev_info); - - info = framebuffer_alloc(sizeof(u32) * 256, &dev_info->udev->dev); - - if (!info) { - printk("non posso allocare il framebuffer displaylink"); - goto out; - } - - fb_parse_edid(dev_info->edid, &info->var); - - printk("EDID XRES %d YRES %d\n", info->var.xres, info->var.yres); - - if (dlfb_set_video_mode(dev_info, info->var.xres, info->var.yres) != 0) { - info->var.xres = 1280; - info->var.yres = 1024; - if (dlfb_set_video_mode - (dev_info, info->var.xres, info->var.yres) != 0) { - goto out; - } - } - - printk("found valid mode...%d\n", info->var.pixclock); - - info->pseudo_palette = info->par; - info->par = dev_info; - - dev_info->info = info; - - info->flags = - FBINFO_DEFAULT | FBINFO_READS_FAST | FBINFO_HWACCEL_IMAGEBLIT | - FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT; - info->fbops = &dlfb_ops; - info->screen_base = rvmalloc(dev_info->screen_size); - - if (info->screen_base == NULL) { - printk - ("cannot allocate framebuffer virtual memory of %d bytes\n", - dev_info->screen_size); - goto out0; - } - - printk("screen base allocated !!!\n"); - - dev_info->backing_buffer = kzalloc(dev_info->screen_size, GFP_KERNEL); - - if (!dev_info->backing_buffer) - printk("non posso allocare il backing buffer\n"); - - /* info->var = dev_info->si; */ - - info->var.bits_per_pixel = 16; - info->var.activate = FB_ACTIVATE_TEST; - info->var.vmode = FB_VMODE_NONINTERLACED; - - info->var.red.offset = 11; - info->var.red.length = 5; - info->var.red.msb_right = 0; - - info->var.green.offset = 5; - info->var.green.length = 6; - info->var.green.msb_right = 0; - - info->var.blue.offset = 0; - info->var.blue.length = 5; - info->var.blue.msb_right = 0; - - /* info->var.pixclock = (10000000 / FB_W * 1000 / FB_H)/2 ; */ - - info->fix.smem_start = (unsigned long)info->screen_base; - info->fix.smem_len = PAGE_ALIGN(dev_info->screen_size); - if (strlen(dev_info->udev->product) > 15) { - memcpy(info->fix.id, dev_info->udev->product, 15); - } else { - memcpy(info->fix.id, dev_info->udev->product, - strlen(dev_info->udev->product)); - } - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.visual = FB_VISUAL_TRUECOLOR; - info->fix.accel = info->flags; - info->fix.line_length = dev_info->line_length; - - if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) - goto out1; - - printk("colormap allocated\n"); - if (register_framebuffer(info) < 0) - goto out2; - - draw_rect(dev_info, 0, 0, dev_info->info->var.xres, - dev_info->info->var.yres, 0x30, 0xff, 0x30); - - return 0; - -out2: - fb_dealloc_cmap(&info->cmap); -out1: - rvfree(info->screen_base, dev_info->screen_size); -out0: - framebuffer_release(info); -out: - usb_set_intfdata(interface, NULL); - usb_put_dev(dev_info->udev); - kfree(dev_info); - return -ENOMEM; - -} - -static void dlfb_disconnect(struct usb_interface *interface) -{ - struct dlfb_data *dev_info = usb_get_intfdata(interface); - - mutex_unlock(&dev_info->bulk_mutex); - - usb_kill_urb(dev_info->tx_urb); - usb_free_urb(dev_info->tx_urb); - usb_set_intfdata(interface, NULL); - usb_put_dev(dev_info->udev); - - if (dev_info->info) { - unregister_framebuffer(dev_info->info); - fb_dealloc_cmap(&dev_info->info->cmap); - rvfree(dev_info->info->screen_base, dev_info->screen_size); - kfree(dev_info->backing_buffer); - framebuffer_release(dev_info->info); - - } - - kfree(dev_info); - - printk("DisplayLink device disconnected\n"); -} - -static struct usb_driver dlfb_driver = { - .name = "udlfb", - .probe = dlfb_probe, - .disconnect = dlfb_disconnect, - .id_table = id_table, -}; - -static int __init dlfb_init(void) -{ - int res; - - dlfb_init_modes(); - - res = usb_register(&dlfb_driver); - if (res) - err("usb_register failed. Error number %d", res); - - printk("VMODES initialized\n"); - - return res; -} - -static void __exit dlfb_exit(void) -{ - usb_deregister(&dlfb_driver); -} - -module_init(dlfb_init); -module_exit(dlfb_exit); - -MODULE_AUTHOR("Roberto De Ioris <roberto@unbit.it>"); -MODULE_DESCRIPTION(DRIVER_VERSION); -MODULE_LICENSE("GPL"); |