aboutsummaryrefslogtreecommitdiff
path: root/linux-core/nv50_fbcon.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux-core/nv50_fbcon.c')
-rw-r--r--linux-core/nv50_fbcon.c627
1 files changed, 0 insertions, 627 deletions
diff --git a/linux-core/nv50_fbcon.c b/linux-core/nv50_fbcon.c
deleted file mode 100644
index 3dd73062..00000000
--- a/linux-core/nv50_fbcon.c
+++ /dev/null
@@ -1,627 +0,0 @@
-/*
- * 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 ? DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
- drm_mode->flags |= var->sync & FB_SYNC_VERT_HIGH_ACT ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_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;
-
- /* choose crtc it already has, if possible */
- if (drm_connector->encoder) {
- struct drm_encoder *drm_encoder = drm_connector->encoder;
-
- if (drm_encoder->crtc) {
- list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
- if (drm_crtc == drm_encoder->crtc) {
- if (!crtc_used[crtc_count]) /* still available? */
- mode_set.crtc = drm_crtc;
- break;
- }
-
- crtc_count++;
- }
- }
- }
-
- /* proceed as planned */
- if (mode_set.crtc) {
- mode_set.crtc->funcs->set_config(&mode_set);
- crtc_used[crtc_count] = true;
- }
-
- if (!mode_set.crtc) {
- crtc_count = 0; /* reset */
-
- /* choose a "random" crtc */
- 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;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-26 19:45:35 +0000