#include <linux/kernel.h>
#include <linux/fb.h>
#include <linux/console.h>
-#include <linux/module.h>
/**
* framebuffer_alloc - creates a new frame buffer info structure
info->device = dev;
-#ifdef CONFIG_FB_BACKLIGHT
- mutex_init(&info->bl_mutex);
-#endif
-
return info;
#undef PADDING
#undef BYTES_PER_LONG
const struct fb_videomode *mode)
{
char m = 'U';
- char v = 'p';
-
if (mode->flag & FB_MODE_IS_DETAILED)
m = 'D';
if (mode->flag & FB_MODE_IS_VESA)
m = 'V';
if (mode->flag & FB_MODE_IS_STANDARD)
m = 'S';
-
- if (mode->vmode & FB_VMODE_INTERLACED)
- v = 'i';
- if (mode->vmode & FB_VMODE_DOUBLE)
- v = 'd';
-
- return snprintf(&buf[offset], PAGE_SIZE - offset, "%c:%dx%d%c-%d\n",
- m, mode->xres, mode->yres, v, mode->refresh);
+ return snprintf(&buf[offset], PAGE_SIZE - offset, "%c:%dx%d-%d\n", m, mode->xres, mode->yres, mode->refresh);
}
static ssize_t store_mode(struct class_device *class_device, const char * buf,
return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->var.rotate);
}
+static ssize_t store_con_rotate(struct class_device *class_device,
+ const char *buf, size_t count)
+{
+ struct fb_info *fb_info = class_get_devdata(class_device);
+ int rotate;
+ char **last = NULL;
+
+ acquire_console_sem();
+ rotate = simple_strtoul(buf, last, 0);
+ fb_con_duit(fb_info, FB_EVENT_SET_CON_ROTATE, &rotate);
+ release_console_sem();
+ return count;
+}
+
+static ssize_t store_con_rotate_all(struct class_device *class_device,
+ const char *buf, size_t count)
+{
+ struct fb_info *fb_info = class_get_devdata(class_device);
+ int rotate;
+ char **last = NULL;
+
+ acquire_console_sem();
+ rotate = simple_strtoul(buf, last, 0);
+ fb_con_duit(fb_info, FB_EVENT_SET_CON_ROTATE_ALL, &rotate);
+ release_console_sem();
+ return count;
+}
+
+static ssize_t show_con_rotate(struct class_device *class_device, char *buf)
+{
+ struct fb_info *fb_info = class_get_devdata(class_device);
+ int rotate;
+
+ acquire_console_sem();
+ rotate = fb_con_duit(fb_info, FB_EVENT_GET_CON_ROTATE, NULL);
+ release_console_sem();
+ return snprintf(buf, PAGE_SIZE, "%d\n", rotate);
+}
+
static ssize_t store_virtual(struct class_device *class_device,
const char * buf, size_t count)
{
return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->fix.line_length);
}
+/* Format for cmap is "%02x%c%4x%4x%4x\n" */
+/* %02x entry %c transp %4x red %4x blue %4x green \n */
+/* 256 rows at 16 chars equals 4096, the normal page size */
+/* the code will automatically adjust for different page sizes */
+static ssize_t store_cmap(struct class_device *class_device, const char *buf,
+ size_t count)
+{
+ struct fb_info *fb_info = class_get_devdata(class_device);
+ int rc, i, start, length, transp = 0;
+
+ if ((count > PAGE_SIZE) || ((count % 16) != 0))
+ return -EINVAL;
+
+ if (!fb_info->fbops->fb_setcolreg && !fb_info->fbops->fb_setcmap)
+ return -EINVAL;
+
+ sscanf(buf, "%02x", &start);
+ length = count / 16;
+
+ for (i = 0; i < length; i++)
+ if (buf[i * 16 + 2] != ' ')
+ transp = 1;
+
+ /* If we can batch, do it */
+ if (fb_info->fbops->fb_setcmap && length > 1) {
+ struct fb_cmap umap;
+
+ memset(&umap, 0, sizeof(umap));
+ if ((rc = fb_alloc_cmap(&umap, length, transp)))
+ return rc;
+
+ umap.start = start;
+ for (i = 0; i < length; i++) {
+ sscanf(&buf[i * 16 + 3], "%4hx", &umap.red[i]);
+ sscanf(&buf[i * 16 + 7], "%4hx", &umap.blue[i]);
+ sscanf(&buf[i * 16 + 11], "%4hx", &umap.green[i]);
+ if (transp)
+ umap.transp[i] = (buf[i * 16 + 2] != ' ');
+ }
+ rc = fb_info->fbops->fb_setcmap(&umap, fb_info);
+ fb_copy_cmap(&umap, &fb_info->cmap);
+ fb_dealloc_cmap(&umap);
+
+ return rc;
+ }
+ for (i = 0; i < length; i++) {
+ u16 red, blue, green, tsp;
+
+ sscanf(&buf[i * 16 + 3], "%4hx", &red);
+ sscanf(&buf[i * 16 + 7], "%4hx", &blue);
+ sscanf(&buf[i * 16 + 11], "%4hx", &green);
+ tsp = (buf[i * 16 + 2] != ' ');
+ if ((rc = fb_info->fbops->fb_setcolreg(start++,
+ red, green, blue, tsp, fb_info)))
+ return rc;
+
+ fb_info->cmap.red[i] = red;
+ fb_info->cmap.blue[i] = blue;
+ fb_info->cmap.green[i] = green;
+ if (transp)
+ fb_info->cmap.transp[i] = tsp;
+ }
+ return 0;
+}
+
+static ssize_t show_cmap(struct class_device *class_device, char *buf)
+{
+ struct fb_info *fb_info = class_get_devdata(class_device);
+ unsigned int i;
+
+ if (!fb_info->cmap.red || !fb_info->cmap.blue ||
+ !fb_info->cmap.green)
+ return -EINVAL;
+
+ if (fb_info->cmap.len > PAGE_SIZE / 16)
+ return -EINVAL;
+
+ /* don't mess with the format, the buffer is PAGE_SIZE */
+ /* 256 entries at 16 chars per line equals 4096 = PAGE_SIZE */
+ for (i = 0; i < fb_info->cmap.len; i++) {
+ snprintf(&buf[ i * 16], PAGE_SIZE - i * 16, "%02x%c%4x%4x%4x\n", i + fb_info->cmap.start,
+ ((fb_info->cmap.transp && fb_info->cmap.transp[i]) ? '*' : ' '),
+ fb_info->cmap.red[i], fb_info->cmap.blue[i],
+ fb_info->cmap.green[i]);
+ }
+ return 16 * fb_info->cmap.len;
+}
+
static ssize_t store_blank(struct class_device *class_device, const char * buf,
size_t count)
{
return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->state);
}
-#ifdef CONFIG_FB_BACKLIGHT
-static ssize_t store_bl_curve(struct class_device *class_device,
- const char *buf, size_t count)
-{
- struct fb_info *fb_info = class_get_devdata(class_device);
- u8 tmp_curve[FB_BACKLIGHT_LEVELS];
- unsigned int i;
-
- /* Some drivers don't use framebuffer_alloc(), but those also
- * don't have backlights.
- */
- if (!fb_info || !fb_info->bl_dev)
- return -ENODEV;
-
- if (count != (FB_BACKLIGHT_LEVELS / 8 * 24))
- return -EINVAL;
-
- for (i = 0; i < (FB_BACKLIGHT_LEVELS / 8); ++i)
- if (sscanf(&buf[i * 24],
- "%2hhx %2hhx %2hhx %2hhx %2hhx %2hhx %2hhx %2hhx\n",
- &tmp_curve[i * 8 + 0],
- &tmp_curve[i * 8 + 1],
- &tmp_curve[i * 8 + 2],
- &tmp_curve[i * 8 + 3],
- &tmp_curve[i * 8 + 4],
- &tmp_curve[i * 8 + 5],
- &tmp_curve[i * 8 + 6],
- &tmp_curve[i * 8 + 7]) != 8)
- return -EINVAL;
-
- /* If there has been an error in the input data, we won't
- * reach this loop.
- */
- mutex_lock(&fb_info->bl_mutex);
- for (i = 0; i < FB_BACKLIGHT_LEVELS; ++i)
- fb_info->bl_curve[i] = tmp_curve[i];
- mutex_unlock(&fb_info->bl_mutex);
-
- return count;
-}
-
-static ssize_t show_bl_curve(struct class_device *class_device, char *buf)
-{
- struct fb_info *fb_info = class_get_devdata(class_device);
- ssize_t len = 0;
- unsigned int i;
-
- /* Some drivers don't use framebuffer_alloc(), but those also
- * don't have backlights.
- */
- if (!fb_info || !fb_info->bl_dev)
- return -ENODEV;
-
- mutex_lock(&fb_info->bl_mutex);
- for (i = 0; i < FB_BACKLIGHT_LEVELS; i += 8)
- len += snprintf(&buf[len], PAGE_SIZE,
- "%02x %02x %02x %02x %02x %02x %02x %02x\n",
- fb_info->bl_curve[i + 0],
- fb_info->bl_curve[i + 1],
- fb_info->bl_curve[i + 2],
- fb_info->bl_curve[i + 3],
- fb_info->bl_curve[i + 4],
- fb_info->bl_curve[i + 5],
- fb_info->bl_curve[i + 6],
- fb_info->bl_curve[i + 7]);
- mutex_unlock(&fb_info->bl_mutex);
-
- return len;
-}
-#endif
-
-/* When cmap is added back in it should be a binary attribute
- * not a text one. Consideration should also be given to converting
- * fbdev to use configfs instead of sysfs */
static struct class_device_attribute class_device_attrs[] = {
__ATTR(bits_per_pixel, S_IRUGO|S_IWUSR, show_bpp, store_bpp),
__ATTR(blank, S_IRUGO|S_IWUSR, show_blank, store_blank),
+ __ATTR(color_map, S_IRUGO|S_IWUSR, show_cmap, store_cmap),
__ATTR(console, S_IRUGO|S_IWUSR, show_console, store_console),
__ATTR(cursor, S_IRUGO|S_IWUSR, show_cursor, store_cursor),
__ATTR(mode, S_IRUGO|S_IWUSR, show_mode, store_mode),
__ATTR(name, S_IRUGO, show_name, NULL),
__ATTR(stride, S_IRUGO, show_stride, NULL),
__ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate),
+ __ATTR(con_rotate, S_IRUGO|S_IWUSR, show_con_rotate, store_con_rotate),
+ __ATTR(con_rotate_all, S_IWUSR, NULL, store_con_rotate_all),
__ATTR(state, S_IRUGO|S_IWUSR, show_fbstate, store_fbstate),
-#ifdef CONFIG_FB_BACKLIGHT
- __ATTR(bl_curve, S_IRUGO|S_IWUSR, show_bl_curve, store_bl_curve),
-#endif
};
int fb_init_class_device(struct fb_info *fb_info)
&class_device_attrs[i]);
}
-#ifdef CONFIG_FB_BACKLIGHT
-/* This function generates a linear backlight curve
- *
- * 0: off
- * 1-7: min
- * 8-127: linear from min to max
- */
-void fb_bl_default_curve(struct fb_info *fb_info, u8 off, u8 min, u8 max)
-{
- unsigned int i, flat, count, range = (max - min);
-
- fb_info->bl_curve[0] = off;
- for (flat = 1; flat < (FB_BACKLIGHT_LEVELS / 16); ++flat)
- fb_info->bl_curve[flat] = min;
-
- count = FB_BACKLIGHT_LEVELS * 15 / 16;
- for (i = 0; i < count; ++i)
- fb_info->bl_curve[flat + i] = min + (range * (i + 1) / count);
-}
-EXPORT_SYMBOL_GPL(fb_bl_default_curve);
-#endif
git://git.onelab.eu / linux-2.6.git / blobdiff