--- /dev/null
+/*
+ * Copyright (C) 2008 Maarten Maathuis.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+
+#include "nv50_fbcon.h"
+
+static int nv50_fbcon_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info)
+{
+ struct nv50_fbcon_par *par = info->par;
+ struct drm_device *dev = par->dev;
+ struct drm_framebuffer *drm_fb;
+
+ list_for_each_entry(drm_fb, &dev->mode_config.fb_kernel_list, filp_head) {
+ if (regno > 255)
+ return 1;
+
+ /* TODO: 8 bit support */
+ if (regno < 16) {
+ switch (drm_fb->depth) {
+ case 15:
+ drm_fb->pseudo_palette[regno] = ((red & 0xf800) >> 1) |
+ ((green & 0xf800) >> 6) |
+ ((blue & 0xf800) >> 11);
+ break;
+ case 16:
+ drm_fb->pseudo_palette[regno] = (red & 0xf800) |
+ ((green & 0xfc00) >> 5) |
+ ((blue & 0xf800) >> 11);
+ break;
+ case 24:
+ case 32:
+ drm_fb->pseudo_palette[regno] = ((red & 0xff00) << 8) |
+ (green & 0xff00) |
+ ((blue & 0xff00) >> 8);
+ break;
+ }
+ }
+ }
+ return 0;
+}
+
+static int nv50_fbcon_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ struct nv50_fbcon_par *par = info->par;
+ struct drm_framebuffer *drm_fb = par->fb;
+ int depth;
+
+ NV50_DEBUG("\n");
+
+ if (!var || !drm_fb || !info) {
+ DRM_ERROR("No var, drm_fb or info\n");
+ }
+
+ par->use_preferred_mode = false;
+
+ if (var->pixclock == -1 || !var->pixclock) {
+ DRM_INFO("Using preferred mode.\n");
+ par->use_preferred_mode = true;
+ }
+
+ /* Need to resize the fb object !!! */
+ if (var->xres > drm_fb->width || var->yres > drm_fb->height) {
+ DRM_ERROR("Requested width/height is greater than current fb object %dx%d > %dx%d\n", var->xres,var->yres, drm_fb->width, drm_fb->height);
+ DRM_ERROR("Need resizing code.\n");
+ return -EINVAL;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 16:
+ depth = (var->green.length == 6) ? 16 : 15;
+ break;
+ case 32:
+ depth = (var->transp.length > 0) ? 32 : 24;
+ break;
+ default:
+ depth = var->bits_per_pixel;
+ break;
+ }
+
+ switch (depth) {
+ case 15:
+ var->red.offset = 10;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->red.length = 5;
+ var->green.length = 5;
+ var->blue.length = 5;
+ var->transp.length = 1;
+ var->transp.offset = 15;
+ break;
+ case 16:
+ var->red.offset = 11;
+ var->green.offset = 5;
+ var->blue.offset = 0;
+ var->red.length = 5;
+ var->green.length = 6;
+ var->blue.length = 5;
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ break;
+ case 24:
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ break;
+ case 32:
+ var->red.offset = 16;
+ var->green.offset = 8;
+ var->blue.offset = 0;
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 8;
+ var->transp.offset = 24;
+ break;
+ default:
+ DRM_ERROR("Invalid depth %d\n", depth);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int nv50_fbcon_set_par(struct fb_info *info)
+{
+ struct nv50_fbcon_par *par;
+ struct drm_framebuffer *drm_fb;
+ struct drm_connector *drm_connector;
+ struct drm_crtc *drm_crtc;
+ struct fb_var_screeninfo *var;
+ struct drm_display_mode *drm_mode = NULL, *t;
+ struct drm_device *dev;
+ int rval;
+ bool crtc_used[2] = {false, false};
+
+ NV50_DEBUG("\n");
+
+ if (!info) {
+ DRM_ERROR("No fb_info\n");
+ return -EINVAL;
+ }
+
+ par = info->par;
+
+ if (!par) {
+ DRM_ERROR("No nv50_fbcon_par\n");
+ return -EINVAL;
+ }
+
+ drm_fb = par->fb;
+ var = &info->var;
+ dev = par->dev;
+
+ if (!drm_fb || !var || !dev) {
+ DRM_ERROR("No drm_fb, var or dev\n");
+ return -EINVAL;
+ }
+
+ par->use_preferred_mode = false;
+
+ if (var->pixclock == -1 || !var->pixclock) {
+ DRM_INFO("Using preferred mode.\n");
+ par->use_preferred_mode = true;
+ }
+
+ /* FB setup */
+ switch (var->bits_per_pixel) {
+ case 16:
+ drm_fb->depth = (var->green.length == 6) ? 16 : 15;
+ break;
+ case 32:
+ drm_fb->depth = (var->transp.length > 0) ? 32 : 24;
+ break;
+ default:
+ drm_fb->depth = var->bits_per_pixel;
+ break;
+ }
+
+ drm_fb->bits_per_pixel = var->bits_per_pixel;
+
+ info->fix.line_length = drm_fb->pitch;
+ info->fix.smem_len = info->fix.line_length * drm_fb->height;
+ /* ignoring 8bpp for the moment */
+ info->fix.visual = FB_VISUAL_TRUECOLOR;
+
+ info->screen_size = info->fix.smem_len; /* ??? */
+
+ /* create a drm mode */
+ if (!par->use_preferred_mode) {
+ drm_mode = drm_mode_create(dev);
+ drm_mode->hdisplay = var->xres;
+ drm_mode->hsync_start = drm_mode->hdisplay + var->right_margin;
+ drm_mode->hsync_end = drm_mode->hsync_start + var->hsync_len;
+ drm_mode->htotal = drm_mode->hsync_end + var->left_margin;
+ drm_mode->vdisplay = var->yres;
+ drm_mode->vsync_start = drm_mode->vdisplay + var->lower_margin;
+ drm_mode->vsync_end = drm_mode->vsync_start + var->vsync_len;
+ drm_mode->vtotal = drm_mode->vsync_end + var->upper_margin;
+ drm_mode->clock = PICOS2KHZ(var->pixclock);
+ drm_mode->vrefresh = drm_mode_vrefresh(drm_mode);
+ drm_mode->flags = 0;
+ drm_mode->flags |= var->sync & FB_SYNC_HOR_HIGH_ACT ? V_PHSYNC : V_NHSYNC;
+ drm_mode->flags |= var->sync & FB_SYNC_VERT_HIGH_ACT ? V_PVSYNC : V_NVSYNC;
+
+ drm_mode_set_name(drm_mode);
+ drm_mode_set_crtcinfo(drm_mode, CRTC_INTERLACE_HALVE_V);
+ }
+
+ /* hook up crtc's */
+ list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
+ enum drm_connector_status status;
+ struct drm_mode_set mode_set;
+ int crtc_count = 0;
+
+ status = drm_connector->funcs->detect(drm_connector);
+
+ if (status != connector_status_connected)
+ continue;
+
+ memset(&mode_set, 0, sizeof(struct drm_mode_set));
+
+ /* set connector */
+ mode_set.num_connectors = 1;
+ mode_set.connectors = kzalloc(sizeof(struct drm_connector *), GFP_KERNEL);
+ if (!mode_set.connectors) {
+ rval = -ENOMEM;
+ goto out;
+ }
+ mode_set.connectors[0] = drm_connector;
+
+ /* set fb */
+ list_for_each_entry(drm_fb, &dev->mode_config.fb_kernel_list, filp_head) {
+ break; /* first entry is the only entry */
+ }
+ mode_set.fb = drm_fb;
+
+ /* set mode */
+ if (par->use_preferred_mode) {
+ /* find preferred mode */
+ list_for_each_entry_safe(drm_mode, t, &drm_connector->modes, head) {
+ if (drm_mode->type & DRM_MODE_TYPE_PREFERRED)
+ break;
+ }
+ }
+ mode_set.mode = drm_mode;
+
+ list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
+ if (crtc_used[crtc_count]) {
+ crtc_count++;
+ continue;
+ }
+
+ /* found a crtc */
+ mode_set.crtc = drm_crtc;
+
+ break;
+ }
+
+ /* proceed as planned */
+ if (mode_set.crtc) {
+ mode_set.crtc->funcs->set_config(&mode_set);
+ crtc_used[crtc_count] = true;
+ }
+
+ kfree(mode_set.connectors);
+ }
+
+ return 0;
+
+out:
+ return rval;
+}
+
+static struct fb_ops nv50_fb_ops = {
+ .owner = THIS_MODULE,
+ //.fb_open = nv50_fb_open,
+ //.fb_read = nv50_fb_read,
+ //.fb_write = nv50_fb_write,
+ //.fb_release = nv50_fb_release,
+ //.fb_ioctl = nv50_fb_ioctl,
+ .fb_check_var = nv50_fbcon_check_var,
+ .fb_set_par = nv50_fbcon_set_par,
+ .fb_setcolreg = nv50_fbcon_setcolreg,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ //.fb_pan_display = nv50_fb_pan_display,
+};
+
+static int nv50_fbcon_initial_config(struct drm_device *dev)
+{
+ struct drm_connector *drm_connector;
+
+ struct drm_framebuffer *drm_fb = NULL;
+ struct drm_mode_fb_cmd drm_fb_cmd;
+ enum drm_connector_status status;
+ uint32_t max_width = 0, max_height = 0, pitch = 0;
+ struct mem_block *block;
+ struct drm_file *file_priv;
+ uint32_t flags;
+ int rval = 0;
+
+ list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
+ status = drm_connector->funcs->detect(drm_connector);
+
+ /* find the framebuffer size */
+ if (status == connector_status_connected) {
+ struct drm_display_mode *mode, *t;
+ list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
+ if (mode->type & DRM_MODE_TYPE_PREFERRED) {
+ if (mode->hdisplay > max_width)
+ max_width = mode->hdisplay;
+ if (mode->vdisplay > max_height)
+ max_height = mode->vdisplay;
+ }
+ }
+ }
+ }
+
+ /* allocate framebuffer */
+ file_priv = kzalloc(sizeof(struct drm_file), GFP_KERNEL);
+ if (!file_priv) {
+ rval = -ENOMEM;
+ goto out;
+ }
+
+ pitch = (max_width + 63) & ~63;
+ pitch *= 4; /* TODO */
+
+ flags = NOUVEAU_MEM_FB | NOUVEAU_MEM_MAPPED;
+
+ /* Any file_priv should do as it's pointer is used as identification. */
+ block = nouveau_mem_alloc(dev, 0, pitch * max_height, flags, file_priv);
+ if (!block) {
+ rval = -ENOMEM;
+ goto out;
+ }
+
+ memset(&drm_fb_cmd, 0, sizeof(struct drm_mode_fb_cmd));
+
+ drm_fb_cmd.width = max_width;
+ drm_fb_cmd.height = max_height;
+ drm_fb_cmd.pitch = pitch;
+ drm_fb_cmd.bpp = 32; /* TODO */
+ drm_fb_cmd.handle = block->map_handle;
+ drm_fb_cmd.depth = 24; /* TODO */
+
+ drm_fb = dev->mode_config.funcs->fb_create(dev, file_priv, &drm_fb_cmd);
+ if (!drm_fb) {
+ rval = -EINVAL;
+ goto out;
+ }
+
+ list_add(&drm_fb->filp_head, &dev->mode_config.fb_kernel_list);
+
+ return 0;
+
+out:
+ if (file_priv)
+ kfree(file_priv);
+ if (drm_fb)
+ drm_fb->funcs->destroy(drm_fb);
+
+ return rval;
+}
+
+/*
+ * Single framebuffer, ideally operating in clone mode across various connectors.
+ */
+int nv50_fbcon_init(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct fb_info *info;
+ struct nv50_fbcon_par *par;
+ struct device *device = &dev->pdev->dev;
+ struct drm_framebuffer *drm_fb;
+ struct mem_block *block;
+ void __iomem *fb = NULL;
+ int rval;
+
+ rval = nv50_fbcon_initial_config(dev);
+ if (rval != 0) {
+ DRM_ERROR("nv50_fbcon_initial_config failed\n");
+ return rval;
+ }
+
+ list_for_each_entry(drm_fb, &dev->mode_config.fb_kernel_list, filp_head) {
+ break; /* first entry is the only entry */
+ }
+
+ if (!drm_fb) {
+ DRM_ERROR("no drm_fb found\n");
+ return -EINVAL;
+ }
+
+ block = find_block_by_handle(dev_priv->fb_heap, drm_fb->mm_handle);
+ if (!block) {
+ DRM_ERROR("can't find mem_block\n");
+ return -EINVAL;
+ }
+
+ info = framebuffer_alloc(sizeof(struct nv50_fbcon_par), device);
+ if (!info) {
+ DRM_ERROR("framebuffer_alloc failed\n");
+ return -EINVAL;
+ }
+
+ par = info->par;
+
+ strcpy(info->fix.id, "nv50drmfb");
+ info->fix.type = FB_TYPE_PACKED_PIXELS;
+ info->fix.visual = FB_VISUAL_TRUECOLOR;
+ info->fix.type_aux = 0;
+ info->fix.xpanstep = 0; /* 1 is doing it in hw */
+ info->fix.ypanstep = 0;
+ info->fix.ywrapstep = 0;
+ info->fix.accel = FB_ACCEL_NONE;
+ info->fix.type_aux = 0;
+
+ info->flags = FBINFO_DEFAULT;
+
+ info->fbops = &nv50_fb_ops;
+
+ info->fix.line_length = drm_fb->pitch;
+ info->fix.smem_start = dev_priv->fb_phys + block->start;
+ info->fix.smem_len = info->fix.line_length * drm_fb->height;
+
+ info->flags = FBINFO_DEFAULT;
+
+ fb = ioremap(dev_priv->fb_phys + block->start, block->size);
+ if (!fb) {
+ DRM_ERROR("Unable to ioremap framebuffer\n");
+ return -EINVAL;
+ }
+
+ info->screen_base = fb;
+ info->screen_size = info->fix.smem_len; /* FIXME */
+
+ info->pseudo_palette = drm_fb->pseudo_palette;
+ info->var.xres_virtual = drm_fb->width;
+ info->var.yres_virtual = drm_fb->height;
+ info->var.bits_per_pixel = drm_fb->bits_per_pixel;
+ info->var.xoffset = 0;
+ info->var.yoffset = 0;
+ info->var.activate = FB_ACTIVATE_NOW;
+ info->var.height = -1;
+ info->var.width = -1;
+
+ /* TODO: improve this */
+ info->var.xres = drm_fb->width;
+ info->var.yres = drm_fb->height;
+
+ info->fix.mmio_start = drm_get_resource_start(dev, 0);
+ info->fix.mmio_len = drm_get_resource_len(dev, 0);
+
+ DRM_DEBUG("fb depth is %d\n", drm_fb->depth);
+ DRM_DEBUG(" pitch is %d\n", drm_fb->pitch);
+
+ switch(drm_fb->depth) {
+ case 15:
+ info->var.red.offset = 10;
+ info->var.green.offset = 5;
+ info->var.blue.offset = 0;
+ info->var.red.length = 5;
+ info->var.green.length = 5;
+ info->var.blue.length = 5;
+ info->var.transp.offset = 15;
+ info->var.transp.length = 1;
+ break;
+ case 16:
+ info->var.red.offset = 11;
+ info->var.green.offset = 5;
+ info->var.blue.offset = 0;
+ info->var.red.length = 5;
+ info->var.green.length = 6;
+ info->var.blue.length = 5;
+ info->var.transp.offset = 0;
+ break;
+ case 24:
+ info->var.red.offset = 16;
+ info->var.green.offset = 8;
+ info->var.blue.offset = 0;
+ info->var.red.length = 8;
+ info->var.green.length = 8;
+ info->var.blue.length = 8;
+ info->var.transp.offset = 0;
+ info->var.transp.length = 0;
+ break;
+ case 32:
+ info->var.red.offset = 16;
+ info->var.green.offset = 8;
+ info->var.blue.offset = 0;
+ info->var.red.length = 8;
+ info->var.green.length = 8;
+ info->var.blue.length = 8;
+ info->var.transp.offset = 24;
+ info->var.transp.length = 8;
+ break;
+ default:
+ break;
+ }
+
+ drm_fb->fbdev = info;
+ par->dev = dev;
+ par->fb = drm_fb;
+
+ register_framebuffer(info);
+
+ DRM_INFO("nv50drmfb initialised\n");
+
+ return 0;
+}
+
+int nv50_fbcon_destroy(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct drm_framebuffer *drm_fb;
+ struct fb_info *info;
+ struct mem_block *block;
+ struct drm_file *file_priv;
+
+ list_for_each_entry(drm_fb, &dev->mode_config.fb_kernel_list, filp_head) {
+ break; /* first entry is the only entry */
+ }
+
+ if (!drm_fb) {
+ DRM_ERROR("No framebuffer to destroy\n");
+ return -EINVAL;
+ }
+
+ info = drm_fb->fbdev;
+ if (!info) {
+ DRM_ERROR("No fb_info\n");
+ return -EINVAL;
+ }
+
+ unregister_framebuffer(info);
+
+ block = find_block_by_handle(dev_priv->fb_heap, drm_fb->mm_handle);
+ if (!block) {
+ DRM_ERROR("can't find mem_block\n");
+ return -EINVAL;
+ }
+
+ /* we need to free this after memory is freed */
+ file_priv = block->file_priv;
+
+ /* free memory */
+ nouveau_mem_free(dev, block);
+
+ if (file_priv) {
+ kfree(file_priv);
+ file_priv = NULL;
+ }
+
+ framebuffer_release(info);
+
+ return 0;
+}
projects / profile / ivi / libdrm.git / commitdiff