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Merge branch 'drm-lcdc' of git://linuxtv.org/pinchartl/fbdev into drm-next 

Laurent writes:

The SH Mobile DRM driver is now (in my opinion) ready for mainline. It
requires GEM and KMS/FB helpers that have been reviewed on the list and
tested. Sascha is waiting for them to reach your tree to send a pull request
for another new driver.

* 'drm-lcdc' of git://linuxtv.org/pinchartl/fbdev:
  drm: Renesas SH Mobile DRM driver
  drm: Add NV24 and NV42 pixel formats
  DRM: Add DRM KMS/FB CMA helper
  DRM: Add DRM GEM CMA helper
  drm/edid: limit printk when facing bad edid
This commit is contained in:
Dave Airlie 2012-09-19 19:57:58 +10:00
parent 09e7dcf081 51c1327876
commit f2032d413a
25 changed files with 3031 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/Kconfig
View File

@ -54,6 +54,21 @@ config DRM_TTM
GPU memory types. Will be enabled automatically if a device driver
uses it.
config DRM_GEM_CMA_HELPER
bool
depends on DRM
help
Choose this if you need the GEM CMA helper functions
config DRM_KMS_CMA_HELPER
bool
select DRM_GEM_CMA_HELPER
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
select FB_SYS_IMAGEBLIT
help
Choose this if you need the KMS CMA helper functions
config DRM_TDFX
tristate "3dfx Banshee/Voodoo3+"
depends on DRM && PCI
@ -193,3 +208,5 @@ source "drivers/gpu/drm/ast/Kconfig"
source "drivers/gpu/drm/mgag200/Kconfig"
source "drivers/gpu/drm/cirrus/Kconfig"
source "drivers/gpu/drm/shmobile/Kconfig"

3
drivers/gpu/drm/Makefile
View File

@ -15,11 +15,13 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \
drm_trace_points.o drm_global.o drm_prime.o
drm-$(CONFIG_COMPAT) += drm_ioc32.o
drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o
drm-usb-y := drm_usb.o
drm_kms_helper-y := drm_fb_helper.o drm_crtc_helper.o drm_dp_i2c_helper.o
drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
drm_kms_helper-$(CONFIG_DRM_KMS_CMA_HELPER) += drm_fb_cma_helper.o
obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
@ -45,4 +47,5 @@ obj-$(CONFIG_DRM_EXYNOS) +=exynos/
obj-$(CONFIG_DRM_GMA500) += gma500/
obj-$(CONFIG_DRM_UDL) += udl/
obj-$(CONFIG_DRM_AST) += ast/
obj-$(CONFIG_DRM_SHMOBILE) +=shmobile/
obj-y += i2c/

6
drivers/gpu/drm/drm_crtc.c
View File

@ -2169,6 +2169,8 @@ static int format_check(const struct drm_mode_fb_cmd2 *r)
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
case DRM_FORMAT_NV24:
case DRM_FORMAT_NV42:
case DRM_FORMAT_YUV410:
case DRM_FORMAT_YVU410:
case DRM_FORMAT_YUV411:
@ -3718,6 +3720,8 @@ int drm_format_num_planes(uint32_t format)
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
case DRM_FORMAT_NV24:
case DRM_FORMAT_NV42:
return 2;
default:
return 1;
@ -3751,6 +3755,8 @@ int drm_format_plane_cpp(uint32_t format, int plane)
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
case DRM_FORMAT_NV24:
case DRM_FORMAT_NV42:
return plane ? 2 : 1;
case DRM_FORMAT_YUV410:
case DRM_FORMAT_YVU410:

22
drivers/gpu/drm/drm_edid.c
View File

@ -158,7 +158,7 @@ MODULE_PARM_DESC(edid_fixup,
* Sanity check the EDID block (base or extension). Return 0 if the block
* doesn't check out, or 1 if it's valid.
*/
bool drm_edid_block_valid(u8 *raw_edid, int block)
bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid)
{
int i;
u8 csum = 0;
@ -181,7 +181,9 @@ bool drm_edid_block_valid(u8 *raw_edid, int block)
for (i = 0; i < EDID_LENGTH; i++)
csum += raw_edid[i];
if (csum) {
DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
if (print_bad_edid) {
DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
}
/* allow CEA to slide through, switches mangle this */
if (raw_edid[0] != 0x02)
@ -207,7 +209,7 @@ bool drm_edid_block_valid(u8 *raw_edid, int block)
return 1;
bad:
if (raw_edid) {
if (raw_edid && print_bad_edid) {
printk(KERN_ERR "Raw EDID:\n");
print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1,
raw_edid, EDID_LENGTH, false);
@ -231,7 +233,7 @@ bool drm_edid_is_valid(struct edid *edid)
return false;
for (i = 0; i <= edid->extensions; i++)
if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i))
if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i, true))
return false;
return true;
@ -316,6 +318,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
{
int i, j = 0, valid_extensions = 0;
u8 *block, *new;
bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS);
if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
return NULL;
@ -324,7 +327,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
for (i = 0; i < 4; i++) {
if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH))
goto out;
if (drm_edid_block_valid(block, 0))
if (drm_edid_block_valid(block, 0, print_bad_edid))
break;
if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) {
connector->null_edid_counter++;
@ -349,7 +352,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
block + (valid_extensions + 1) * EDID_LENGTH,
j, EDID_LENGTH))
goto out;
if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j)) {
if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j, print_bad_edid)) {
valid_extensions++;
break;
}
@ -372,8 +375,11 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
return block;
carp:
dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
drm_get_connector_name(connector), j);
if (print_bad_edid) {
dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
drm_get_connector_name(connector), j);
}
connector->bad_edid_counter++;
out:
kfree(block);

6
drivers/gpu/drm/drm_edid_load.c
View File

@ -123,6 +123,7 @@ static u8 *edid_load(struct drm_connector *connector, char *name,
int fwsize, expected;
int builtin = 0, err = 0;
int i, valid_extensions = 0;
bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS);
pdev = platform_device_register_simple(connector_name, -1, NULL, 0);
if (IS_ERR(pdev)) {
@ -173,7 +174,8 @@ static u8 *edid_load(struct drm_connector *connector, char *name,
}
memcpy(edid, fwdata, fwsize);
if (!drm_edid_block_valid(edid, 0)) {
if (!drm_edid_block_valid(edid, 0, print_bad_edid)) {
connector->bad_edid_counter++;
DRM_ERROR("Base block of EDID firmware \"%s\" is invalid ",
name);
kfree(edid);
@ -185,7 +187,7 @@ static u8 *edid_load(struct drm_connector *connector, char *name,
if (i != valid_extensions + 1)
memcpy(edid + (valid_extensions + 1) * EDID_LENGTH,
edid + i * EDID_LENGTH, EDID_LENGTH);
if (drm_edid_block_valid(edid + i * EDID_LENGTH, i))
if (drm_edid_block_valid(edid + i * EDID_LENGTH, i, print_bad_edid))
valid_extensions++;
}

406
drivers/gpu/drm/drm_fb_cma_helper.c Normal file
View File

@ -0,0 +1,406 @@
/*
* drm kms/fb cma (contiguous memory allocator) helper functions
*
* Copyright (C) 2012 Analog Device Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
*
* Based on udl_fbdev.c
* Copyright (C) 2012 Red Hat
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <linux/module.h>
struct drm_fb_cma {
struct drm_framebuffer fb;
struct drm_gem_cma_object *obj[4];
};
struct drm_fbdev_cma {
struct drm_fb_helper fb_helper;
struct drm_fb_cma *fb;
};
static inline struct drm_fbdev_cma *to_fbdev_cma(struct drm_fb_helper *helper)
{
return container_of(helper, struct drm_fbdev_cma, fb_helper);
}
static inline struct drm_fb_cma *to_fb_cma(struct drm_framebuffer *fb)
{
return container_of(fb, struct drm_fb_cma, fb);
}
static void drm_fb_cma_destroy(struct drm_framebuffer *fb)
{
struct drm_fb_cma *fb_cma = to_fb_cma(fb);
int i;
for (i = 0; i < 4; i++) {
if (fb_cma->obj[i])
drm_gem_object_unreference_unlocked(&fb_cma->obj[i]->base);
}
drm_framebuffer_cleanup(fb);
kfree(fb_cma);
}
static int drm_fb_cma_create_handle(struct drm_framebuffer *fb,
struct drm_file *file_priv, unsigned int *handle)
{
struct drm_fb_cma *fb_cma = to_fb_cma(fb);
return drm_gem_handle_create(file_priv,
&fb_cma->obj[0]->base, handle);
}
static struct drm_framebuffer_funcs drm_fb_cma_funcs = {
.destroy = drm_fb_cma_destroy,
.create_handle = drm_fb_cma_create_handle,
};
static struct drm_fb_cma *drm_fb_cma_alloc(struct drm_device *dev,
struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_cma_object **obj,
unsigned int num_planes)
{
struct drm_fb_cma *fb_cma;
int ret;
int i;
fb_cma = kzalloc(sizeof(*fb_cma), GFP_KERNEL);
if (!fb_cma)
return ERR_PTR(-ENOMEM);
ret = drm_framebuffer_init(dev, &fb_cma->fb, &drm_fb_cma_funcs);
if (ret) {
dev_err(dev->dev, "Failed to initalize framebuffer: %d\n", ret);
kfree(fb_cma);
return ERR_PTR(ret);
}
drm_helper_mode_fill_fb_struct(&fb_cma->fb, mode_cmd);
for (i = 0; i < num_planes; i++)
fb_cma->obj[i] = obj[i];
return fb_cma;
}
/**
* drm_fb_cma_create() - (struct drm_mode_config_funcs *)->fb_create callback function
*
* If your hardware has special alignment or pitch requirements these should be
* checked before calling this function.
*/
struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev,
struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd)
{
struct drm_fb_cma *fb_cma;
struct drm_gem_cma_object *objs[4];
struct drm_gem_object *obj;
unsigned int hsub;
unsigned int vsub;
int ret;
int i;
hsub = drm_format_horz_chroma_subsampling(mode_cmd->pixel_format);
vsub = drm_format_vert_chroma_subsampling(mode_cmd->pixel_format);
for (i = 0; i < drm_format_num_planes(mode_cmd->pixel_format); i++) {
unsigned int width = mode_cmd->width / (i ? hsub : 1);
unsigned int height = mode_cmd->height / (i ? vsub : 1);
unsigned int min_size;
obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[i]);
if (!obj) {
dev_err(dev->dev, "Failed to lookup GEM object\n");
ret = -ENXIO;
goto err_gem_object_unreference;
}
min_size = (height - 1) * mode_cmd->pitches[i]
+ width * drm_format_plane_cpp(mode_cmd->pixel_format, i)
+ mode_cmd->offsets[i];
if (obj->size < min_size) {
drm_gem_object_unreference_unlocked(obj);
ret = -EINVAL;
goto err_gem_object_unreference;
}
objs[i] = to_drm_gem_cma_obj(obj);
}
fb_cma = drm_fb_cma_alloc(dev, mode_cmd, objs, i);
if (IS_ERR(fb_cma)) {
ret = PTR_ERR(fb_cma);
goto err_gem_object_unreference;
}
return &fb_cma->fb;
err_gem_object_unreference:
for (i--; i >= 0; i--)
drm_gem_object_unreference_unlocked(&objs[i]->base);
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(drm_fb_cma_create);
/**
* drm_fb_cma_get_gem_obj() - Get CMA GEM object for framebuffer
* @fb: The framebuffer
* @plane: Which plane
*
* Return the CMA GEM object for given framebuffer.
*
* This function will usually be called from the CRTC callback functions.
*/
struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
unsigned int plane)
{
struct drm_fb_cma *fb_cma = to_fb_cma(fb);
if (plane >= 4)
return NULL;
return fb_cma->obj[plane];
}
EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj);
static struct fb_ops drm_fbdev_cma_ops = {
.owner = THIS_MODULE,
.fb_fillrect = sys_fillrect,
.fb_copyarea = sys_copyarea,
.fb_imageblit = sys_imageblit,
.fb_check_var = drm_fb_helper_check_var,
.fb_set_par = drm_fb_helper_set_par,
.fb_blank = drm_fb_helper_blank,
.fb_pan_display = drm_fb_helper_pan_display,
.fb_setcmap = drm_fb_helper_setcmap,
};
static int drm_fbdev_cma_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_fbdev_cma *fbdev_cma = to_fbdev_cma(helper);
struct drm_mode_fb_cmd2 mode_cmd = { 0 };
struct drm_device *dev = helper->dev;
struct drm_gem_cma_object *obj;
struct drm_framebuffer *fb;
unsigned int bytes_per_pixel;
unsigned long offset;
struct fb_info *fbi;
size_t size;
int ret;
DRM_DEBUG_KMS("surface width(%d), height(%d) and bpp(%d\n",
sizes->surface_width, sizes->surface_height,
sizes->surface_bpp);
bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8);
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = sizes->surface_width * bytes_per_pixel;
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
obj = drm_gem_cma_create(dev, size);
if (!obj)
return -ENOMEM;
fbi = framebuffer_alloc(0, dev->dev);
if (!fbi) {
dev_err(dev->dev, "Failed to allocate framebuffer info.\n");
ret = -ENOMEM;
goto err_drm_gem_cma_free_object;
}
fbdev_cma->fb = drm_fb_cma_alloc(dev, &mode_cmd, &obj, 1);
if (IS_ERR(fbdev_cma->fb)) {
dev_err(dev->dev, "Failed to allocate DRM framebuffer.\n");
ret = PTR_ERR(fbdev_cma->fb);
goto err_framebuffer_release;
}
fb = &fbdev_cma->fb->fb;
helper->fb = fb;
helper->fbdev = fbi;
fbi->par = helper;
fbi->flags = FBINFO_FLAG_DEFAULT;
fbi->fbops = &drm_fbdev_cma_ops;
ret = fb_alloc_cmap(&fbi->cmap, 256, 0);
if (ret) {
dev_err(dev->dev, "Failed to allocate color map.\n");
goto err_drm_fb_cma_destroy;
}
drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height);
offset = fbi->var.xoffset * bytes_per_pixel;
offset += fbi->var.yoffset * fb->pitches[0];
dev->mode_config.fb_base = (resource_size_t)obj->paddr;
fbi->screen_base = obj->vaddr + offset;
fbi->fix.smem_start = (unsigned long)(obj->paddr + offset);
fbi->screen_size = size;
fbi->fix.smem_len = size;
return 0;
err_drm_fb_cma_destroy:
drm_fb_cma_destroy(fb);
err_framebuffer_release:
framebuffer_release(fbi);
err_drm_gem_cma_free_object:
drm_gem_cma_free_object(&obj->base);
return ret;
}
static int drm_fbdev_cma_probe(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
int ret = 0;
if (!helper->fb) {
ret = drm_fbdev_cma_create(helper, sizes);
if (ret < 0)
return ret;
ret = 1;
}
return ret;
}
static struct drm_fb_helper_funcs drm_fb_cma_helper_funcs = {
.fb_probe = drm_fbdev_cma_probe,
};
/**
* drm_fbdev_cma_init() - Allocate and initializes a drm_fbdev_cma struct
* @dev: DRM device
* @preferred_bpp: Preferred bits per pixel for the device
* @num_crtc: Number of CRTCs
* @max_conn_count: Maximum number of connectors
*
* Returns a newly allocated drm_fbdev_cma struct or a ERR_PTR.
*/
struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev,
unsigned int preferred_bpp, unsigned int num_crtc,
unsigned int max_conn_count)
{
struct drm_fbdev_cma *fbdev_cma;
struct drm_fb_helper *helper;
int ret;
fbdev_cma = kzalloc(sizeof(*fbdev_cma), GFP_KERNEL);
if (!fbdev_cma) {
dev_err(dev->dev, "Failed to allocate drm fbdev.\n");
return ERR_PTR(-ENOMEM);
}
fbdev_cma->fb_helper.funcs = &drm_fb_cma_helper_funcs;
helper = &fbdev_cma->fb_helper;
ret = drm_fb_helper_init(dev, helper, num_crtc, max_conn_count);
if (ret < 0) {
dev_err(dev->dev, "Failed to initialize drm fb helper.\n");
goto err_free;
}
ret = drm_fb_helper_single_add_all_connectors(helper);
if (ret < 0) {
dev_err(dev->dev, "Failed to add connectors.\n");
goto err_drm_fb_helper_fini;
}
ret = drm_fb_helper_initial_config(helper, preferred_bpp);
if (ret < 0) {
dev_err(dev->dev, "Failed to set inital hw configuration.\n");
goto err_drm_fb_helper_fini;
}
return fbdev_cma;
err_drm_fb_helper_fini:
drm_fb_helper_fini(helper);
err_free:
kfree(fbdev_cma);
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(drm_fbdev_cma_init);
/**
* drm_fbdev_cma_fini() - Free drm_fbdev_cma struct
* @fbdev_cma: The drm_fbdev_cma struct
*/
void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma)
{
if (fbdev_cma->fb_helper.fbdev) {
struct fb_info *info;
int ret;
info = fbdev_cma->fb_helper.fbdev;
ret = unregister_framebuffer(info);
if (ret < 0)
DRM_DEBUG_KMS("failed unregister_framebuffer()\n");
if (info->cmap.len)
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
if (fbdev_cma->fb)
drm_fb_cma_destroy(&fbdev_cma->fb->fb);
drm_fb_helper_fini(&fbdev_cma->fb_helper);
kfree(fbdev_cma);
}
EXPORT_SYMBOL_GPL(drm_fbdev_cma_fini);
/**
* drm_fbdev_cma_restore_mode() - Restores initial framebuffer mode
* @fbdev_cma: The drm_fbdev_cma struct, may be NULL
*
* This function is usually called from the DRM drivers lastclose callback.
*/
void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma)
{
if (fbdev_cma)
drm_fb_helper_restore_fbdev_mode(&fbdev_cma->fb_helper);
}
EXPORT_SYMBOL_GPL(drm_fbdev_cma_restore_mode);
/**
* drm_fbdev_cma_hotplug_event() - Poll for hotpulug events
* @fbdev_cma: The drm_fbdev_cma struct, may be NULL
*
* This function is usually called from the DRM drivers output_poll_changed
* callback.
*/
void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma)
{
if (fbdev_cma)
drm_fb_helper_hotplug_event(&fbdev_cma->fb_helper);
}
EXPORT_SYMBOL_GPL(drm_fbdev_cma_hotplug_event);

251
drivers/gpu/drm/drm_gem_cma_helper.c Normal file
View File

@ -0,0 +1,251 @@
/*
* drm gem CMA (contiguous memory allocator) helper functions
*
* Copyright (C) 2012 Sascha Hauer, Pengutronix
*
* Based on Samsung Exynos code
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/export.h>
#include <linux/dma-mapping.h>
#include <drm/drmP.h>
#include <drm/drm.h>
#include <drm/drm_gem_cma_helper.h>
static unsigned int get_gem_mmap_offset(struct drm_gem_object *obj)
{
return (unsigned int)obj->map_list.hash.key << PAGE_SHIFT;
}
static void drm_gem_cma_buf_destroy(struct drm_device *drm,
struct drm_gem_cma_object *cma_obj)
{
dma_free_writecombine(drm->dev, cma_obj->base.size, cma_obj->vaddr,
cma_obj->paddr);
}
/*
* drm_gem_cma_create - allocate an object with the given size
*
* returns a struct drm_gem_cma_object* on success or ERR_PTR values
* on failure.
*/
struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
unsigned int size)
{
struct drm_gem_cma_object *cma_obj;
struct drm_gem_object *gem_obj;
int ret;
size = round_up(size, PAGE_SIZE);
cma_obj = kzalloc(sizeof(*cma_obj), GFP_KERNEL);
if (!cma_obj)
return ERR_PTR(-ENOMEM);
cma_obj->vaddr = dma_alloc_writecombine(drm->dev, size,
&cma_obj->paddr, GFP_KERNEL | __GFP_NOWARN);
if (!cma_obj->vaddr) {
dev_err(drm->dev, "failed to allocate buffer with size %d\n", size);
ret = -ENOMEM;
goto err_dma_alloc;
}
gem_obj = &cma_obj->base;
ret = drm_gem_object_init(drm, gem_obj, size);
if (ret)
goto err_obj_init;
ret = drm_gem_create_mmap_offset(gem_obj);
if (ret)
goto err_create_mmap_offset;
return cma_obj;
err_create_mmap_offset:
drm_gem_object_release(gem_obj);
err_obj_init:
drm_gem_cma_buf_destroy(drm, cma_obj);
err_dma_alloc:
kfree(cma_obj);
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(drm_gem_cma_create);
/*
* drm_gem_cma_create_with_handle - allocate an object with the given
* size and create a gem handle on it
*
* returns a struct drm_gem_cma_object* on success or ERR_PTR values
* on failure.
*/
static struct drm_gem_cma_object *drm_gem_cma_create_with_handle(
struct drm_file *file_priv,
struct drm_device *drm, unsigned int size,
unsigned int *handle)
{
struct drm_gem_cma_object *cma_obj;
struct drm_gem_object *gem_obj;
int ret;
cma_obj = drm_gem_cma_create(drm, size);
if (IS_ERR(cma_obj))
return cma_obj;
gem_obj = &cma_obj->base;
/*
* allocate a id of idr table where the obj is registered
* and handle has the id what user can see.
*/
ret = drm_gem_handle_create(file_priv, gem_obj, handle);
if (ret)
goto err_handle_create;
/* drop reference from allocate - handle holds it now. */
drm_gem_object_unreference_unlocked(gem_obj);
return cma_obj;
err_handle_create:
drm_gem_cma_free_object(gem_obj);
return ERR_PTR(ret);
}
/*
* drm_gem_cma_free_object - (struct drm_driver)->gem_free_object callback
* function
*/
void drm_gem_cma_free_object(struct drm_gem_object *gem_obj)
{
struct drm_gem_cma_object *cma_obj;
if (gem_obj->map_list.map)
drm_gem_free_mmap_offset(gem_obj);
drm_gem_object_release(gem_obj);
cma_obj = to_drm_gem_cma_obj(gem_obj);
drm_gem_cma_buf_destroy(gem_obj->dev, cma_obj);
kfree(cma_obj);
}
EXPORT_SYMBOL_GPL(drm_gem_cma_free_object);
/*
* drm_gem_cma_dumb_create - (struct drm_driver)->dumb_create callback
* function
*
* This aligns the pitch and size arguments to the minimum required. wrap
* this into your own function if you need bigger alignment.
*/
int drm_gem_cma_dumb_create(struct drm_file *file_priv,
struct drm_device *dev, struct drm_mode_create_dumb *args)
{
struct drm_gem_cma_object *cma_obj;
int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
if (args->pitch < min_pitch)
args->pitch = min_pitch;
if (args->size < args->pitch * args->height)
args->size = args->pitch * args->height;
cma_obj = drm_gem_cma_create_with_handle(file_priv, dev,
args->size, &args->handle);
if (IS_ERR(cma_obj))
return PTR_ERR(cma_obj);
return 0;
}
EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_create);
/*
* drm_gem_cma_dumb_map_offset - (struct drm_driver)->dumb_map_offset callback
* function
*/
int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *drm, uint32_t handle, uint64_t *offset)
{
struct drm_gem_object *gem_obj;
mutex_lock(&drm->struct_mutex);
gem_obj = drm_gem_object_lookup(drm, file_priv, handle);
if (!gem_obj) {
dev_err(drm->dev, "failed to lookup gem object\n");
mutex_unlock(&drm->struct_mutex);
return -EINVAL;
}
*offset = get_gem_mmap_offset(gem_obj);
drm_gem_object_unreference(gem_obj);
mutex_unlock(&drm->struct_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_map_offset);
const struct vm_operations_struct drm_gem_cma_vm_ops = {
.open = drm_gem_vm_open,
.close = drm_gem_vm_close,
};
EXPORT_SYMBOL_GPL(drm_gem_cma_vm_ops);
/*
* drm_gem_cma_mmap - (struct file_operation)->mmap callback function
*/
int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_gem_object *gem_obj;
struct drm_gem_cma_object *cma_obj;
int ret;
ret = drm_gem_mmap(filp, vma);
if (ret)
return ret;
gem_obj = vma->vm_private_data;
cma_obj = to_drm_gem_cma_obj(gem_obj);
ret = remap_pfn_range(vma, vma->vm_start, cma_obj->paddr >> PAGE_SHIFT,
vma->vm_end - vma->vm_start, vma->vm_page_prot);
if (ret)
drm_gem_vm_close(vma);
return ret;
}
EXPORT_SYMBOL_GPL(drm_gem_cma_mmap);
/*
* drm_gem_cma_dumb_destroy - (struct drm_driver)->dumb_destroy callback function
*/
int drm_gem_cma_dumb_destroy(struct drm_file *file_priv,
struct drm_device *drm, unsigned int handle)
{
return drm_gem_handle_delete(file_priv, handle);
}
EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_destroy);

10
drivers/gpu/drm/shmobile/Kconfig Normal file
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@ -0,0 +1,10 @@
config DRM_SHMOBILE
tristate "DRM Support for SH Mobile"
depends on DRM && (SUPERH || ARCH_SHMOBILE)
select DRM_KMS_HELPER
select DRM_KMS_CMA_HELPER
select DRM_GEM_CMA_HELPER
help
Choose this option if you have an SH Mobile chipset.
If M is selected the module will be called shmob-drm.

7
drivers/gpu/drm/shmobile/Makefile Normal file
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@ -0,0 +1,7 @@
shmob-drm-y := shmob_drm_backlight.o \
shmob_drm_crtc.o \
shmob_drm_drv.o \
shmob_drm_kms.o \
shmob_drm_plane.o
obj-$(CONFIG_DRM_SHMOBILE) += shmob-drm.o

90
drivers/gpu/drm/shmobile/shmob_drm_backlight.c Normal file
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@ -0,0 +1,90 @@
/*
* shmob_drm_backlight.c -- SH Mobile DRM Backlight
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/backlight.h>
#include "shmob_drm_backlight.h"
#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
static int shmob_drm_backlight_update(struct backlight_device *bdev)
{
struct shmob_drm_connector *scon = bl_get_data(bdev);
struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
int brightness = bdev->props.brightness;
if (bdev->props.power != FB_BLANK_UNBLANK ||
bdev->props.state & BL_CORE_SUSPENDED)
brightness = 0;
return bdata->set_brightness(brightness);
}
static int shmob_drm_backlight_get_brightness(struct backlight_device *bdev)
{
struct shmob_drm_connector *scon = bl_get_data(bdev);
struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
return bdata->get_brightness();
}
static const struct backlight_ops shmob_drm_backlight_ops = {
.options = BL_CORE_SUSPENDRESUME,
.update_status = shmob_drm_backlight_update,
.get_brightness = shmob_drm_backlight_get_brightness,
};
void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode)
{
if (scon->backlight == NULL)
return;
scon->backlight->props.power = mode == DRM_MODE_DPMS_ON
? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
backlight_update_status(scon->backlight);
}
int shmob_drm_backlight_init(struct shmob_drm_connector *scon)
{
struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
struct drm_connector *connector = &scon->connector;
struct drm_device *dev = connector->dev;
struct backlight_device *backlight;
if (!bdata->max_brightness)
return 0;
backlight = backlight_device_register(bdata->name, dev->dev, scon,
&shmob_drm_backlight_ops, NULL);
if (IS_ERR(backlight)) {
dev_err(dev->dev, "unable to register backlight device: %ld\n",
PTR_ERR(backlight));
return PTR_ERR(backlight);
}
backlight->props.max_brightness = bdata->max_brightness;
backlight->props.brightness = bdata->max_brightness;
backlight->props.power = FB_BLANK_POWERDOWN;
backlight_update_status(backlight);
scon->backlight = backlight;
return 0;
}
void shmob_drm_backlight_exit(struct shmob_drm_connector *scon)
{
backlight_device_unregister(scon->backlight);
}

23
drivers/gpu/drm/shmobile/shmob_drm_backlight.h Normal file
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@ -0,0 +1,23 @@
/*
* shmob_drm_backlight.h -- SH Mobile DRM Backlight
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SHMOB_DRM_BACKLIGHT_H__
#define __SHMOB_DRM_BACKLIGHT_H__
struct shmob_drm_connector;
void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode);
int shmob_drm_backlight_init(struct shmob_drm_connector *scon);
void shmob_drm_backlight_exit(struct shmob_drm_connector *scon);
#endif /* __SHMOB_DRM_BACKLIGHT_H__ */

763
drivers/gpu/drm/shmobile/shmob_drm_crtc.c Normal file
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@ -0,0 +1,763 @@
/*
* shmob_drm_crtc.c -- SH Mobile DRM CRTCs
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/backlight.h>
#include <linux/clk.h>
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <video/sh_mobile_meram.h>
#include "shmob_drm_backlight.h"
#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
#include "shmob_drm_plane.h"
#include "shmob_drm_regs.h"
/*
* TODO: panel support
*/
/* -----------------------------------------------------------------------------
* Clock management
*/
static void shmob_drm_clk_on(struct shmob_drm_device *sdev)
{
if (sdev->clock)
clk_enable(sdev->clock);
#if 0
if (sdev->meram_dev && sdev->meram_dev->pdev)
pm_runtime_get_sync(&sdev->meram_dev->pdev->dev);
#endif
}
static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
{
#if 0
if (sdev->meram_dev && sdev->meram_dev->pdev)
pm_runtime_put_sync(&sdev->meram_dev->pdev->dev);
#endif
if (sdev->clock)
clk_disable(sdev->clock);
}
/* -----------------------------------------------------------------------------
* CRTC
*/
static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
{
struct drm_crtc *crtc = &scrtc->crtc;
struct shmob_drm_device *sdev = crtc->dev->dev_private;
const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
const struct drm_display_mode *mode = &crtc->mode;
u32 value;
value = sdev->ldmt1r
| ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : LDMT1R_VPOL)
| ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : LDMT1R_HPOL)
| ((idata->flags & SHMOB_DRM_IFACE_FL_DWPOL) ? LDMT1R_DWPOL : 0)
| ((idata->flags & SHMOB_DRM_IFACE_FL_DIPOL) ? LDMT1R_DIPOL : 0)
| ((idata->flags & SHMOB_DRM_IFACE_FL_DAPOL) ? LDMT1R_DAPOL : 0)
| ((idata->flags & SHMOB_DRM_IFACE_FL_HSCNT) ? LDMT1R_HSCNT : 0)
| ((idata->flags & SHMOB_DRM_IFACE_FL_DWCNT) ? LDMT1R_DWCNT : 0);
lcdc_write(sdev, LDMT1R, value);
if (idata->interface >= SHMOB_DRM_IFACE_SYS8A &&
idata->interface <= SHMOB_DRM_IFACE_SYS24) {
/* Setup SYS bus. */
value = (idata->sys.cs_setup << LDMT2R_CSUP_SHIFT)
| (idata->sys.vsync_active_high ? LDMT2R_RSV : 0)
| (idata->sys.vsync_dir_input ? LDMT2R_VSEL : 0)
| (idata->sys.write_setup << LDMT2R_WCSC_SHIFT)
| (idata->sys.write_cycle << LDMT2R_WCEC_SHIFT)
| (idata->sys.write_strobe << LDMT2R_WCLW_SHIFT);
lcdc_write(sdev, LDMT2R, value);
value = (idata->sys.read_latch << LDMT3R_RDLC_SHIFT)
| (idata->sys.read_setup << LDMT3R_RCSC_SHIFT)
| (idata->sys.read_cycle << LDMT3R_RCEC_SHIFT)
| (idata->sys.read_strobe << LDMT3R_RCLW_SHIFT);
lcdc_write(sdev, LDMT3R, value);
}
value = ((mode->hdisplay / 8) << 16) /* HDCN */
| (mode->htotal / 8); /* HTCN */
lcdc_write(sdev, LDHCNR, value);
value = (((mode->hsync_end - mode->hsync_start) / 8) << 16) /* HSYNW */
| (mode->hsync_start / 8); /* HSYNP */
lcdc_write(sdev, LDHSYNR, value);
value = ((mode->hdisplay & 7) << 24) | ((mode->htotal & 7) << 16)
| (((mode->hsync_end - mode->hsync_start) & 7) << 8)
| (mode->hsync_start & 7);
lcdc_write(sdev, LDHAJR, value);
value = ((mode->vdisplay) << 16) /* VDLN */
| mode->vtotal; /* VTLN */
lcdc_write(sdev, LDVLNR, value);
value = ((mode->vsync_end - mode->vsync_start) << 16) /* VSYNW */
| mode->vsync_start; /* VSYNP */
lcdc_write(sdev, LDVSYNR, value);
}
static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
{
struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private;
u32 value;
value = lcdc_read(sdev, LDCNT2R);
if (start)
lcdc_write(sdev, LDCNT2R, value | LDCNT2R_DO);
else
lcdc_write(sdev, LDCNT2R, value & ~LDCNT2R_DO);
/* Wait until power is applied/stopped. */
while (1) {
value = lcdc_read(sdev, LDPMR) & LDPMR_LPS;
if ((start && value) || (!start && !value))
break;
cpu_relax();
}
if (!start) {
/* Stop the dot clock. */
lcdc_write(sdev, LDDCKSTPR, LDDCKSTPR_DCKSTP);
}
}
/*
* shmob_drm_crtc_start - Configure and start the LCDC
* @scrtc: the SH Mobile CRTC
*
* Configure and start the LCDC device. External devices (clocks, MERAM, panels,
* ...) are not touched by this function.
*/
static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
{
struct drm_crtc *crtc = &scrtc->crtc;
struct shmob_drm_device *sdev = crtc->dev->dev_private;
const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
const struct shmob_drm_format_info *format;
struct drm_device *dev = sdev->ddev;
struct drm_plane *plane;
u32 value;
if (scrtc->started)
return;
format = shmob_drm_format_info(crtc->fb->pixel_format);
if (WARN_ON(format == NULL))
return;
/* Enable clocks before accessing the hardware. */
shmob_drm_clk_on(sdev);
/* Reset and enable the LCDC. */
lcdc_write(sdev, LDCNT2R, lcdc_read(sdev, LDCNT2R) | LDCNT2R_BR);
lcdc_wait_bit(sdev, LDCNT2R, LDCNT2R_BR, 0);
lcdc_write(sdev, LDCNT2R, LDCNT2R_ME);
/* Stop the LCDC first and disable all interrupts. */
shmob_drm_crtc_start_stop(scrtc, false);
lcdc_write(sdev, LDINTR, 0);
/* Configure power supply, dot clocks and start them. */
lcdc_write(sdev, LDPMR, 0);
value = sdev->lddckr;
if (idata->clk_div) {
/* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider
* denominator.
*/
lcdc_write(sdev, LDDCKPAT1R, 0);
lcdc_write(sdev, LDDCKPAT2R, (1 << (idata->clk_div / 2)) - 1);
if (idata->clk_div == 1)
value |= LDDCKR_MOSEL;
else
value |= idata->clk_div;
}
lcdc_write(sdev, LDDCKR, value);
lcdc_write(sdev, LDDCKSTPR, 0);
lcdc_wait_bit(sdev, LDDCKSTPR, ~0, 0);
/* TODO: Setup SYS panel */
/* Setup geometry, format, frame buffer memory and operation mode. */
shmob_drm_crtc_setup_geometry(scrtc);
/* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1);
lcdc_write(sdev, LDMLSR, scrtc->line_size);
lcdc_write(sdev, LDSA1R, scrtc->dma[0]);
if (format->yuv)
lcdc_write(sdev, LDSA2R, scrtc->dma[1]);
lcdc_write(sdev, LDSM1R, 0);
/* Word and long word swap. */
switch (format->fourcc) {
case DRM_FORMAT_RGB565:
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV61:
case DRM_FORMAT_NV42:
value = LDDDSR_LS | LDDDSR_WS;
break;
case DRM_FORMAT_RGB888:
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV24:
value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS;
break;
case DRM_FORMAT_ARGB8888:
default:
value = LDDDSR_LS;
break;
}
lcdc_write(sdev, LDDDSR, value);
/* Setup planes. */
list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
if (plane->crtc == crtc)
shmob_drm_plane_setup(plane);
}
/* Enable the display output. */
lcdc_write(sdev, LDCNT1R, LDCNT1R_DE);
shmob_drm_crtc_start_stop(scrtc, true);
scrtc->started = true;
}
static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
{
struct drm_crtc *crtc = &scrtc->crtc;
struct shmob_drm_device *sdev = crtc->dev->dev_private;
if (!scrtc->started)
return;
/* Disable the MERAM cache. */
if (scrtc->cache) {
sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
scrtc->cache = NULL;
}
/* Stop the LCDC. */
shmob_drm_crtc_start_stop(scrtc, false);
/* Disable the display output. */
lcdc_write(sdev, LDCNT1R, 0);
/* Stop clocks. */
shmob_drm_clk_off(sdev);
scrtc->started = false;
}
void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc)
{
shmob_drm_crtc_stop(scrtc);
}
void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc)
{
if (scrtc->dpms != DRM_MODE_DPMS_ON)
return;
shmob_drm_crtc_start(scrtc);
}
static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
int x, int y)
{
struct drm_crtc *crtc = &scrtc->crtc;
struct drm_framebuffer *fb = crtc->fb;
struct shmob_drm_device *sdev = crtc->dev->dev_private;
struct drm_gem_cma_object *gem;
unsigned int bpp;
bpp = scrtc->format->yuv ? 8 : scrtc->format->bpp;
gem = drm_fb_cma_get_gem_obj(fb, 0);
scrtc->dma[0] = gem->paddr + fb->offsets[0]
+ y * fb->pitches[0] + x * bpp / 8;
if (scrtc->format->yuv) {
bpp = scrtc->format->bpp - 8;
gem = drm_fb_cma_get_gem_obj(fb, 1);
scrtc->dma[1] = gem->paddr + fb->offsets[1]
+ y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
+ x * (bpp == 16 ? 2 : 1);
}
if (scrtc->cache)
sh_mobile_meram_cache_update(sdev->meram, scrtc->cache,
scrtc->dma[0], scrtc->dma[1],
&scrtc->dma[0], &scrtc->dma[1]);
}
static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
{
struct drm_crtc *crtc = &scrtc->crtc;
struct shmob_drm_device *sdev = crtc->dev->dev_private;
shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y);
lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]);
if (scrtc->format->yuv)
lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]);
lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
}
#define to_shmob_crtc(c) container_of(c, struct shmob_drm_crtc, crtc)
static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
{
struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
if (scrtc->dpms == mode)
return;
if (mode == DRM_MODE_DPMS_ON)
shmob_drm_crtc_start(scrtc);
else
shmob_drm_crtc_stop(scrtc);
scrtc->dpms = mode;
}
static bool shmob_drm_crtc_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
return true;
}
static void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc)
{
shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
}
static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode,
int x, int y,
struct drm_framebuffer *old_fb)
{
struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
struct shmob_drm_device *sdev = crtc->dev->dev_private;
const struct sh_mobile_meram_cfg *mdata = sdev->pdata->meram;
const struct shmob_drm_format_info *format;
void *cache;
format = shmob_drm_format_info(crtc->fb->pixel_format);
if (format == NULL) {
dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n",
crtc->fb->pixel_format);
return -EINVAL;
}
scrtc->format = format;
scrtc->line_size = crtc->fb->pitches[0];
if (sdev->meram) {
/* Enable MERAM cache if configured. We need to de-init
* configured ICBs before we can re-initialize them.
*/
if (scrtc->cache) {
sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
scrtc->cache = NULL;
}
cache = sh_mobile_meram_cache_alloc(sdev->meram, mdata,
crtc->fb->pitches[0],
adjusted_mode->vdisplay,
format->meram,
&scrtc->line_size);
if (!IS_ERR(cache))
scrtc->cache = cache;
}
shmob_drm_crtc_compute_base(scrtc, x, y);
return 0;
}
static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
{
shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
}
static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
struct drm_framebuffer *old_fb)
{
shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
return 0;
}
static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
.dpms = shmob_drm_crtc_dpms,
.mode_fixup = shmob_drm_crtc_mode_fixup,
.prepare = shmob_drm_crtc_mode_prepare,
.commit = shmob_drm_crtc_mode_commit,
.mode_set = shmob_drm_crtc_mode_set,
.mode_set_base = shmob_drm_crtc_mode_set_base,
};
void shmob_drm_crtc_cancel_page_flip(struct shmob_drm_crtc *scrtc,
struct drm_file *file)
{
struct drm_pending_vblank_event *event;
struct drm_device *dev = scrtc->crtc.dev;
unsigned long flags;
/* Destroy the pending vertical blanking event associated with the
* pending page flip, if any, and disable vertical blanking interrupts.
*/
spin_lock_irqsave(&dev->event_lock, flags);
event = scrtc->event;
if (event && event->base.file_priv == file) {
scrtc->event = NULL;
event->base.destroy(&event->base);
drm_vblank_put(dev, 0);
}
spin_unlock_irqrestore(&dev->event_lock, flags);
}
void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
{
struct drm_pending_vblank_event *event;
struct drm_device *dev = scrtc->crtc.dev;
struct timeval vblanktime;
unsigned long flags;
spin_lock_irqsave(&dev->event_lock, flags);
event = scrtc->event;
scrtc->event = NULL;
spin_unlock_irqrestore(&dev->event_lock, flags);
if (event == NULL)
return;
event->event.sequence = drm_vblank_count_and_time(dev, 0, &vblanktime);
event->event.tv_sec = vblanktime.tv_sec;
event->event.tv_usec = vblanktime.tv_usec;
spin_lock_irqsave(&dev->event_lock, flags);
list_add_tail(&event->base.link, &event->base.file_priv->event_list);
wake_up_interruptible(&event->base.file_priv->event_wait);
spin_unlock_irqrestore(&dev->event_lock, flags);
drm_vblank_put(dev, 0);
}
static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event)
{
struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
struct drm_device *dev = scrtc->crtc.dev;
unsigned long flags;
spin_lock_irqsave(&dev->event_lock, flags);
if (scrtc->event != NULL) {
spin_unlock_irqrestore(&dev->event_lock, flags);
return -EBUSY;
}
spin_unlock_irqrestore(&dev->event_lock, flags);
crtc->fb = fb;
shmob_drm_crtc_update_base(scrtc);
if (event) {
event->pipe = 0;
spin_lock_irqsave(&dev->event_lock, flags);
scrtc->event = event;
spin_unlock_irqrestore(&dev->event_lock, flags);
drm_vblank_get(dev, 0);
}
return 0;
}
static const struct drm_crtc_funcs crtc_funcs = {
.destroy = drm_crtc_cleanup,
.set_config = drm_crtc_helper_set_config,
.page_flip = shmob_drm_crtc_page_flip,
};
int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
{
struct drm_crtc *crtc = &sdev->crtc.crtc;
int ret;
sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
ret = drm_crtc_init(sdev->ddev, crtc, &crtc_funcs);
if (ret < 0)
return ret;
drm_crtc_helper_add(crtc, &crtc_helper_funcs);
return 0;
}
/* -----------------------------------------------------------------------------
* Encoder
*/
#define to_shmob_encoder(e) \
container_of(e, struct shmob_drm_encoder, encoder)
static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
{
struct shmob_drm_encoder *senc = to_shmob_encoder(encoder);
struct shmob_drm_device *sdev = encoder->dev->dev_private;
struct shmob_drm_connector *scon = &sdev->connector;
if (senc->dpms == mode)
return;
shmob_drm_backlight_dpms(scon, mode);
senc->dpms = mode;
}
static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = encoder->dev;
struct shmob_drm_device *sdev = dev->dev_private;
struct drm_connector *connector = &sdev->connector.connector;
const struct drm_display_mode *panel_mode;
if (list_empty(&connector->modes)) {
dev_dbg(dev->dev, "mode_fixup: empty modes list\n");
return false;
}
/* The flat panel mode is fixed, just copy it to the adjusted mode. */
panel_mode = list_first_entry(&connector->modes,
struct drm_display_mode, head);
drm_mode_copy(adjusted_mode, panel_mode);
return true;
}
static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder)
{
/* No-op, everything is handled in the CRTC code. */
}
static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
/* No-op, everything is handled in the CRTC code. */
}
static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder)
{
/* No-op, everything is handled in the CRTC code. */
}
static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
.dpms = shmob_drm_encoder_dpms,
.mode_fixup = shmob_drm_encoder_mode_fixup,
.prepare = shmob_drm_encoder_mode_prepare,
.commit = shmob_drm_encoder_mode_commit,
.mode_set = shmob_drm_encoder_mode_set,
};
static void shmob_drm_encoder_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(encoder);
}
static const struct drm_encoder_funcs encoder_funcs = {
.destroy = shmob_drm_encoder_destroy,
};
int shmob_drm_encoder_create(struct shmob_drm_device *sdev)
{
struct drm_encoder *encoder = &sdev->encoder.encoder;
int ret;
sdev->encoder.dpms = DRM_MODE_DPMS_OFF;
encoder->possible_crtcs = 1;
ret = drm_encoder_init(sdev->ddev, encoder, &encoder_funcs,
DRM_MODE_ENCODER_LVDS);
if (ret < 0)
return ret;
drm_encoder_helper_add(encoder, &encoder_helper_funcs);
return 0;
}
void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, bool enable)
{
unsigned long flags;
u32 ldintr;
/* Be careful not to acknowledge any pending interrupt. */
spin_lock_irqsave(&sdev->irq_lock, flags);
ldintr = lcdc_read(sdev, LDINTR) | LDINTR_STATUS_MASK;
if (enable)
ldintr |= LDINTR_VEE;
else
ldintr &= ~LDINTR_VEE;
lcdc_write(sdev, LDINTR, ldintr);
spin_unlock_irqrestore(&sdev->irq_lock, flags);
}
/* -----------------------------------------------------------------------------
* Connector
*/
#define to_shmob_connector(c) \
container_of(c, struct shmob_drm_connector, connector)
static int shmob_drm_connector_get_modes(struct drm_connector *connector)
{
struct shmob_drm_device *sdev = connector->dev->dev_private;
struct drm_display_mode *mode;
mode = drm_mode_create(connector->dev);
if (mode == NULL)
return 0;
mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
mode->clock = sdev->pdata->panel.mode.clock;
mode->hdisplay = sdev->pdata->panel.mode.hdisplay;
mode->hsync_start = sdev->pdata->panel.mode.hsync_start;
mode->hsync_end = sdev->pdata->panel.mode.hsync_end;
mode->htotal = sdev->pdata->panel.mode.htotal;
mode->vdisplay = sdev->pdata->panel.mode.vdisplay;
mode->vsync_start = sdev->pdata->panel.mode.vsync_start;
mode->vsync_end = sdev->pdata->panel.mode.vsync_end;
mode->vtotal = sdev->pdata->panel.mode.vtotal;
mode->flags = sdev->pdata->panel.mode.flags;
drm_mode_set_name(mode);
drm_mode_probed_add(connector, mode);
connector->display_info.width_mm = sdev->pdata->panel.width_mm;
connector->display_info.height_mm = sdev->pdata->panel.height_mm;
return 1;
}
static int shmob_drm_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
return MODE_OK;
}
static struct drm_encoder *
shmob_drm_connector_best_encoder(struct drm_connector *connector)
{
struct shmob_drm_connector *scon = to_shmob_connector(connector);
return scon->encoder;
}
static const struct drm_connector_helper_funcs connector_helper_funcs = {
.get_modes = shmob_drm_connector_get_modes,
.mode_valid = shmob_drm_connector_mode_valid,
.best_encoder = shmob_drm_connector_best_encoder,
};
static void shmob_drm_connector_destroy(struct drm_connector *connector)
{
struct shmob_drm_connector *scon = to_shmob_connector(connector);
shmob_drm_backlight_exit(scon);
drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
}
static enum drm_connector_status
shmob_drm_connector_detect(struct drm_connector *connector, bool force)
{
return connector_status_connected;
}
static const struct drm_connector_funcs connector_funcs = {
.dpms = drm_helper_connector_dpms,
.detect = shmob_drm_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = shmob_drm_connector_destroy,
};
int shmob_drm_connector_create(struct shmob_drm_device *sdev,
struct drm_encoder *encoder)
{
struct drm_connector *connector = &sdev->connector.connector;
int ret;
sdev->connector.encoder = encoder;
connector->display_info.width_mm = sdev->pdata->panel.width_mm;
connector->display_info.height_mm = sdev->pdata->panel.height_mm;
ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
DRM_MODE_CONNECTOR_LVDS);
if (ret < 0)
return ret;
drm_connector_helper_add(connector, &connector_helper_funcs);
ret = drm_sysfs_connector_add(connector);
if (ret < 0)
goto err_cleanup;
ret = shmob_drm_backlight_init(&sdev->connector);
if (ret < 0)
goto err_sysfs;
ret = drm_mode_connector_attach_encoder(connector, encoder);
if (ret < 0)
goto err_backlight;
connector->encoder = encoder;
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
drm_connector_property_set_value(connector,
sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
return 0;
err_backlight:
shmob_drm_backlight_exit(&sdev->connector);
err_sysfs:
drm_sysfs_connector_remove(connector);
err_cleanup:
drm_connector_cleanup(connector);
return ret;
}

60
drivers/gpu/drm/shmobile/shmob_drm_crtc.h Normal file
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@ -0,0 +1,60 @@
/*
* shmob_drm_crtc.h -- SH Mobile DRM CRTCs
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SHMOB_DRM_CRTC_H__
#define __SHMOB_DRM_CRTC_H__
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
struct backlight_device;
struct shmob_drm_device;
struct shmob_drm_crtc {
struct drm_crtc crtc;
struct drm_pending_vblank_event *event;
int dpms;
const struct shmob_drm_format_info *format;
void *cache;
unsigned long dma[2];
unsigned int line_size;
bool started;
};
struct shmob_drm_encoder {
struct drm_encoder encoder;
int dpms;
};
struct shmob_drm_connector {
struct drm_connector connector;
struct drm_encoder *encoder;
struct backlight_device *backlight;
};
int shmob_drm_crtc_create(struct shmob_drm_device *sdev);
void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, bool enable);
void shmob_drm_crtc_cancel_page_flip(struct shmob_drm_crtc *scrtc,
struct drm_file *file);
void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc);
void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc);
void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc);
int shmob_drm_encoder_create(struct shmob_drm_device *sdev);
int shmob_drm_connector_create(struct shmob_drm_device *sdev,
struct drm_encoder *encoder);
#endif /* __SHMOB_DRM_CRTC_H__ */

361
drivers/gpu/drm/shmobile/shmob_drm_drv.c Normal file
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@ -0,0 +1,361 @@
/*
* shmob_drm_drv.c -- SH Mobile DRM driver
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/slab.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
#include "shmob_drm_plane.h"
#include "shmob_drm_regs.h"
/* -----------------------------------------------------------------------------
* Hardware initialization
*/
static int __devinit shmob_drm_init_interface(struct shmob_drm_device *sdev)
{
static const u32 ldmt1r[] = {
[SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8,
[SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9,
[SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A,
[SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B,
[SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16,
[SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18,
[SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24,
[SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR,
[SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8A,
[SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8B,
[SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8C,
[SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8D,
[SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS9,
[SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS12,
[SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16A,
[SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16B,
[SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16C,
[SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS18,
[SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS24,
};
if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) {
dev_err(sdev->dev, "invalid interface type %u\n",
sdev->pdata->iface.interface);
return -EINVAL;
}
sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface];
return 0;
}
static int __devinit shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
enum shmob_drm_clk_source clksrc)
{
struct clk *clk;
char *clkname;
switch (clksrc) {
case SHMOB_DRM_CLK_BUS:
clkname = "bus_clk";
sdev->lddckr = LDDCKR_ICKSEL_BUS;
break;
case SHMOB_DRM_CLK_PERIPHERAL:
clkname = "peripheral_clk";
sdev->lddckr = LDDCKR_ICKSEL_MIPI;
break;
case SHMOB_DRM_CLK_EXTERNAL:
clkname = NULL;
sdev->lddckr = LDDCKR_ICKSEL_HDMI;
break;
default:
return -EINVAL;
}
clk = clk_get(sdev->dev, clkname);
if (IS_ERR(clk)) {
dev_err(sdev->dev, "cannot get dot clock %s\n", clkname);
return PTR_ERR(clk);
}
sdev->clock = clk;
return 0;
}
/* -----------------------------------------------------------------------------
* DRM operations
*/
static int shmob_drm_unload(struct drm_device *dev)
{
struct shmob_drm_device *sdev = dev->dev_private;
drm_kms_helper_poll_fini(dev);
drm_mode_config_cleanup(dev);
drm_vblank_cleanup(dev);
drm_irq_uninstall(dev);
if (sdev->clock)
clk_put(sdev->clock);
if (sdev->mmio)
iounmap(sdev->mmio);
dev->dev_private = NULL;
kfree(sdev);
return 0;
}
static int shmob_drm_load(struct drm_device *dev, unsigned long flags)
{
struct shmob_drm_platform_data *pdata = dev->dev->platform_data;
struct platform_device *pdev = dev->platformdev;
struct shmob_drm_device *sdev;
struct resource *res;
unsigned int i;
int ret;
if (pdata == NULL) {
dev_err(dev->dev, "no platform data\n");
return -EINVAL;
}
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (sdev == NULL) {
dev_err(dev->dev, "failed to allocate private data\n");
return -ENOMEM;
}
sdev->dev = &pdev->dev;
sdev->pdata = pdata;
spin_lock_init(&sdev->irq_lock);
sdev->ddev = dev;
dev->dev_private = sdev;
/* I/O resources and clocks */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "failed to get memory resource\n");
ret = -EINVAL;
goto done;
}
sdev->mmio = ioremap_nocache(res->start, resource_size(res));
if (sdev->mmio == NULL) {
dev_err(&pdev->dev, "failed to remap memory resource\n");
ret = -ENOMEM;
goto done;
}
ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
if (ret < 0)
goto done;
ret = shmob_drm_init_interface(sdev);
if (ret < 0)
goto done;
ret = shmob_drm_modeset_init(sdev);
if (ret < 0) {
dev_err(&pdev->dev, "failed to initialize mode setting\n");
goto done;
}
for (i = 0; i < 4; ++i) {
ret = shmob_drm_plane_create(sdev, i);
if (ret < 0) {
dev_err(&pdev->dev, "failed to create plane %u\n", i);
goto done;
}
}
ret = drm_vblank_init(dev, 1);
if (ret < 0) {
dev_err(&pdev->dev, "failed to initialize vblank\n");
goto done;
}
ret = drm_irq_install(dev);
if (ret < 0) {
dev_err(&pdev->dev, "failed to install IRQ handler\n");
goto done;
}
done:
if (ret)
shmob_drm_unload(dev);
return ret;
}
static void shmob_drm_preclose(struct drm_device *dev, struct drm_file *file)
{
struct shmob_drm_device *sdev = dev->dev_private;
shmob_drm_crtc_cancel_page_flip(&sdev->crtc, file);
}
static irqreturn_t shmob_drm_irq(int irq, void *arg)
{
struct drm_device *dev = arg;
struct shmob_drm_device *sdev = dev->dev_private;
unsigned long flags;
u32 status;
/* Acknowledge interrupts. Putting interrupt enable and interrupt flag
* bits in the same register is really brain-dead design and requires
* taking a spinlock.
*/
spin_lock_irqsave(&sdev->irq_lock, flags);
status = lcdc_read(sdev, LDINTR);
lcdc_write(sdev, LDINTR, status ^ LDINTR_STATUS_MASK);
spin_unlock_irqrestore(&sdev->irq_lock, flags);
if (status & LDINTR_VES) {
drm_handle_vblank(dev, 0);
shmob_drm_crtc_finish_page_flip(&sdev->crtc);
}
return IRQ_HANDLED;
}
static int shmob_drm_enable_vblank(struct drm_device *dev, int crtc)
{
struct shmob_drm_device *sdev = dev->dev_private;
shmob_drm_crtc_enable_vblank(sdev, true);
return 0;
}
static void shmob_drm_disable_vblank(struct drm_device *dev, int crtc)
{
struct shmob_drm_device *sdev = dev->dev_private;
shmob_drm_crtc_enable_vblank(sdev, false);
}
static const struct file_operations shmob_drm_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
#endif
.poll = drm_poll,
.read = drm_read,
.fasync = drm_fasync,
.llseek = no_llseek,
.mmap = drm_gem_cma_mmap,
};
static struct drm_driver shmob_drm_driver = {
.driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET,
.load = shmob_drm_load,
.unload = shmob_drm_unload,
.preclose = shmob_drm_preclose,
.irq_handler = shmob_drm_irq,
.get_vblank_counter = drm_vblank_count,
.enable_vblank = shmob_drm_enable_vblank,
.disable_vblank = shmob_drm_disable_vblank,
.gem_free_object = drm_gem_cma_free_object,
.gem_vm_ops = &drm_gem_cma_vm_ops,
.dumb_create = drm_gem_cma_dumb_create,
.dumb_map_offset = drm_gem_cma_dumb_map_offset,
.dumb_destroy = drm_gem_cma_dumb_destroy,
.fops = &shmob_drm_fops,
.name = "shmob-drm",
.desc = "Renesas SH Mobile DRM",
.date = "20120424",
.major = 1,
.minor = 0,
};
/* -----------------------------------------------------------------------------
* Power management
*/
#if CONFIG_PM_SLEEP
static int shmob_drm_pm_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *ddev = platform_get_drvdata(pdev);
struct shmob_drm_device *sdev = ddev->dev_private;
drm_kms_helper_poll_disable(ddev);
shmob_drm_crtc_suspend(&sdev->crtc);
return 0;
}
static int shmob_drm_pm_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *ddev = platform_get_drvdata(pdev);
struct shmob_drm_device *sdev = ddev->dev_private;
mutex_lock(&sdev->ddev->mode_config.mutex);
shmob_drm_crtc_resume(&sdev->crtc);
mutex_unlock(&sdev->ddev->mode_config.mutex);
drm_kms_helper_poll_enable(sdev->ddev);
return 0;
}
#endif
static const struct dev_pm_ops shmob_drm_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(shmob_drm_pm_suspend, shmob_drm_pm_resume)
};
/* -----------------------------------------------------------------------------
* Platform driver
*/
static int __devinit shmob_drm_probe(struct platform_device *pdev)
{
return drm_platform_init(&shmob_drm_driver, pdev);
}
static int __devexit shmob_drm_remove(struct platform_device *pdev)
{
drm_platform_exit(&shmob_drm_driver, pdev);
return 0;
}
static struct platform_driver shmob_drm_platform_driver = {
.probe = shmob_drm_probe,
.remove = __devexit_p(shmob_drm_remove),
.driver = {
.owner = THIS_MODULE,
.name = "shmob-drm",
.pm = &shmob_drm_pm_ops,
},
};
module_platform_driver(shmob_drm_platform_driver);
MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
MODULE_DESCRIPTION("Renesas SH Mobile DRM Driver");
MODULE_LICENSE("GPL");

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/*
* shmob_drm.h -- SH Mobile DRM driver
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SHMOB_DRM_DRV_H__
#define __SHMOB_DRM_DRV_H__
#include <linux/kernel.h>
#include <linux/platform_data/shmob_drm.h>
#include <linux/spinlock.h>
#include "shmob_drm_crtc.h"
struct clk;
struct device;
struct drm_device;
struct sh_mobile_meram_info;
struct shmob_drm_device {
struct device *dev;
const struct shmob_drm_platform_data *pdata;
void __iomem *mmio;
struct clk *clock;
struct sh_mobile_meram_info *meram;
u32 lddckr;
u32 ldmt1r;
spinlock_t irq_lock; /* Protects hardware LDINTR register */
struct drm_device *ddev;
struct shmob_drm_crtc crtc;
struct shmob_drm_encoder encoder;
struct shmob_drm_connector connector;
};
#endif /* __SHMOB_DRM_DRV_H__ */

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drivers/gpu/drm/shmobile/shmob_drm_kms.c Normal file
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/*
* shmob_drm_kms.c -- SH Mobile DRM Mode Setting
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <video/sh_mobile_meram.h>
#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
#include "shmob_drm_regs.h"
/* -----------------------------------------------------------------------------
* Format helpers
*/
static const struct shmob_drm_format_info shmob_drm_format_infos[] = {
{
.fourcc = DRM_FORMAT_RGB565,
.bpp = 16,
.yuv = false,
.lddfr = LDDFR_PKF_RGB16,
.meram = SH_MOBILE_MERAM_PF_RGB,
}, {
.fourcc = DRM_FORMAT_RGB888,
.bpp = 24,
.yuv = false,
.lddfr = LDDFR_PKF_RGB24,
.meram = SH_MOBILE_MERAM_PF_RGB,
}, {
.fourcc = DRM_FORMAT_ARGB8888,
.bpp = 32,
.yuv = false,
.lddfr = LDDFR_PKF_ARGB32,
.meram = SH_MOBILE_MERAM_PF_RGB,
}, {
.fourcc = DRM_FORMAT_NV12,
.bpp = 12,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_420,
.meram = SH_MOBILE_MERAM_PF_NV,
}, {
.fourcc = DRM_FORMAT_NV21,
.bpp = 12,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_420,
.meram = SH_MOBILE_MERAM_PF_NV,
}, {
.fourcc = DRM_FORMAT_NV16,
.bpp = 16,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_422,
.meram = SH_MOBILE_MERAM_PF_NV,
}, {
.fourcc = DRM_FORMAT_NV61,
.bpp = 16,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_422,
.meram = SH_MOBILE_MERAM_PF_NV,
}, {
.fourcc = DRM_FORMAT_NV24,
.bpp = 24,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_444,
.meram = SH_MOBILE_MERAM_PF_NV24,
}, {
.fourcc = DRM_FORMAT_NV42,
.bpp = 24,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_444,
.meram = SH_MOBILE_MERAM_PF_NV24,
},
};
const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(shmob_drm_format_infos); ++i) {
if (shmob_drm_format_infos[i].fourcc == fourcc)
return &shmob_drm_format_infos[i];
}
return NULL;
}
/* -----------------------------------------------------------------------------
* Frame buffer
*/
static struct drm_framebuffer *
shmob_drm_fb_create(struct drm_device *dev, struct drm_file *file_priv,
struct drm_mode_fb_cmd2 *mode_cmd)
{
const struct shmob_drm_format_info *format;
format = shmob_drm_format_info(mode_cmd->pixel_format);
if (format == NULL) {
dev_dbg(dev->dev, "unsupported pixel format %08x\n",
mode_cmd->pixel_format);
return ERR_PTR(-EINVAL);
}
if (mode_cmd->pitches[0] & 7 || mode_cmd->pitches[0] >= 65536) {
dev_dbg(dev->dev, "valid pitch value %u\n",
mode_cmd->pitches[0]);
return ERR_PTR(-EINVAL);
}
if (format->yuv) {
unsigned int chroma_cpp = format->bpp == 24 ? 2 : 1;
if (mode_cmd->pitches[1] != mode_cmd->pitches[0] * chroma_cpp) {
dev_dbg(dev->dev,
"luma and chroma pitches do not match\n");
return ERR_PTR(-EINVAL);
}
}
return drm_fb_cma_create(dev, file_priv, mode_cmd);
}
static const struct drm_mode_config_funcs shmob_drm_mode_config_funcs = {
.fb_create = shmob_drm_fb_create,
};
int shmob_drm_modeset_init(struct shmob_drm_device *sdev)
{
drm_mode_config_init(sdev->ddev);
shmob_drm_crtc_create(sdev);
shmob_drm_encoder_create(sdev);
shmob_drm_connector_create(sdev, &sdev->encoder.encoder);
drm_kms_helper_poll_init(sdev->ddev);
sdev->ddev->mode_config.min_width = 0;
sdev->ddev->mode_config.min_height = 0;
sdev->ddev->mode_config.max_width = 4095;
sdev->ddev->mode_config.max_height = 4095;
sdev->ddev->mode_config.funcs = &shmob_drm_mode_config_funcs;
drm_helper_disable_unused_functions(sdev->ddev);
return 0;
}

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/*
* shmob_drm_kms.h -- SH Mobile DRM Mode Setting
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SHMOB_DRM_KMS_H__
#define __SHMOB_DRM_KMS_H__
#include <linux/types.h>
struct drm_gem_cma_object;
struct shmob_drm_device;
struct shmob_drm_format_info {
u32 fourcc;
unsigned int bpp;
bool yuv;
u32 lddfr;
unsigned int meram;
};
const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc);
int shmob_drm_modeset_init(struct shmob_drm_device *sdev);
#endif /* __SHMOB_DRM_KMS_H__ */

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/*
* shmob_drm_plane.c -- SH Mobile DRM Planes
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <video/sh_mobile_meram.h>
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
#include "shmob_drm_plane.h"
#include "shmob_drm_regs.h"
struct shmob_drm_plane {
struct drm_plane plane;
unsigned int index;
unsigned int alpha;
const struct shmob_drm_format_info *format;
unsigned long dma[2];
unsigned int src_x;
unsigned int src_y;
unsigned int crtc_x;
unsigned int crtc_y;
unsigned int crtc_w;
unsigned int crtc_h;
};
#define to_shmob_plane(p) container_of(p, struct shmob_drm_plane, plane)
static void shmob_drm_plane_compute_base(struct shmob_drm_plane *splane,
struct drm_framebuffer *fb,
int x, int y)
{
struct drm_gem_cma_object *gem;
unsigned int bpp;
bpp = splane->format->yuv ? 8 : splane->format->bpp;
gem = drm_fb_cma_get_gem_obj(fb, 0);
splane->dma[0] = gem->paddr + fb->offsets[0]
+ y * fb->pitches[0] + x * bpp / 8;
if (splane->format->yuv) {
bpp = splane->format->bpp - 8;
gem = drm_fb_cma_get_gem_obj(fb, 1);
splane->dma[1] = gem->paddr + fb->offsets[1]
+ y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
+ x * (bpp == 16 ? 2 : 1);
}
}
static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
struct drm_framebuffer *fb)
{
struct shmob_drm_device *sdev = splane->plane.dev->dev_private;
u32 format;
/* TODO: Support ROP3 mode */
format = LDBBSIFR_EN | (splane->alpha << LDBBSIFR_LAY_SHIFT);
switch (splane->format->fourcc) {
case DRM_FORMAT_RGB565:
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV61:
case DRM_FORMAT_NV42:
format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW;
break;
case DRM_FORMAT_RGB888:
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV24:
format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW | LDBBSIFR_SWPB;
break;
case DRM_FORMAT_ARGB8888:
default:
format |= LDBBSIFR_SWPL;
break;
}
switch (splane->format->fourcc) {
case DRM_FORMAT_RGB565:
format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB16;
break;
case DRM_FORMAT_RGB888:
format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB24;
break;
case DRM_FORMAT_ARGB8888:
format |= LDBBSIFR_AL_PK | LDBBSIFR_RY | LDDFR_PKF_ARGB32;
break;
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_420;
break;
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_422;
break;
case DRM_FORMAT_NV24:
case DRM_FORMAT_NV42:
format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_444;
break;
}
#define plane_reg_dump(sdev, splane, reg) \
dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x 0x%08x\n", __func__, \
splane->index, #reg, \
lcdc_read(sdev, reg(splane->index)), \
lcdc_read(sdev, reg(splane->index) + LCDC_SIDE_B_OFFSET))
plane_reg_dump(sdev, splane, LDBnBSIFR);
plane_reg_dump(sdev, splane, LDBnBSSZR);
plane_reg_dump(sdev, splane, LDBnBLOCR);
plane_reg_dump(sdev, splane, LDBnBSMWR);
plane_reg_dump(sdev, splane, LDBnBSAYR);
plane_reg_dump(sdev, splane, LDBnBSACR);
lcdc_write(sdev, LDBCR, LDBCR_UPC(splane->index));
dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x\n", __func__, splane->index,
"LDBCR", lcdc_read(sdev, LDBCR));
lcdc_write(sdev, LDBnBSIFR(splane->index), format);
lcdc_write(sdev, LDBnBSSZR(splane->index),
(splane->crtc_h << LDBBSSZR_BVSS_SHIFT) |
(splane->crtc_w << LDBBSSZR_BHSS_SHIFT));
lcdc_write(sdev, LDBnBLOCR(splane->index),
(splane->crtc_y << LDBBLOCR_CVLC_SHIFT) |
(splane->crtc_x << LDBBLOCR_CHLC_SHIFT));
lcdc_write(sdev, LDBnBSMWR(splane->index),
fb->pitches[0] << LDBBSMWR_BSMW_SHIFT);
shmob_drm_plane_compute_base(splane, fb, splane->src_x, splane->src_y);
lcdc_write(sdev, LDBnBSAYR(splane->index), splane->dma[0]);
if (splane->format->yuv)
lcdc_write(sdev, LDBnBSACR(splane->index), splane->dma[1]);
lcdc_write(sdev, LDBCR,
LDBCR_UPF(splane->index) | LDBCR_UPD(splane->index));
dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x\n", __func__, splane->index,
"LDBCR", lcdc_read(sdev, LDBCR));
plane_reg_dump(sdev, splane, LDBnBSIFR);
plane_reg_dump(sdev, splane, LDBnBSSZR);
plane_reg_dump(sdev, splane, LDBnBLOCR);
plane_reg_dump(sdev, splane, LDBnBSMWR);
plane_reg_dump(sdev, splane, LDBnBSAYR);
plane_reg_dump(sdev, splane, LDBnBSACR);
}
void shmob_drm_plane_setup(struct drm_plane *plane)
{
struct shmob_drm_plane *splane = to_shmob_plane(plane);
if (plane->fb == NULL || !plane->enabled)
return;
__shmob_drm_plane_setup(splane, plane->fb);
}
static int
shmob_drm_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
{
struct shmob_drm_plane *splane = to_shmob_plane(plane);
struct shmob_drm_device *sdev = plane->dev->dev_private;
const struct shmob_drm_format_info *format;
format = shmob_drm_format_info(fb->pixel_format);
if (format == NULL) {
dev_dbg(sdev->dev, "update_plane: unsupported format %08x\n",
fb->pixel_format);
return -EINVAL;
}
if (src_w >> 16 != crtc_w || src_h >> 16 != crtc_h) {
dev_dbg(sdev->dev, "%s: scaling not supported\n", __func__);
return -EINVAL;
}
splane->format = format;
splane->src_x = src_x >> 16;
splane->src_y = src_y >> 16;
splane->crtc_x = crtc_x;
splane->crtc_y = crtc_y;
splane->crtc_w = crtc_w;
splane->crtc_h = crtc_h;
__shmob_drm_plane_setup(splane, fb);
return 0;
}
static int shmob_drm_plane_disable(struct drm_plane *plane)
{
struct shmob_drm_plane *splane = to_shmob_plane(plane);
struct shmob_drm_device *sdev = plane->dev->dev_private;
splane->format = NULL;
lcdc_write(sdev, LDBnBSIFR(splane->index), 0);
return 0;
}
static void shmob_drm_plane_destroy(struct drm_plane *plane)
{
struct shmob_drm_plane *splane = to_shmob_plane(plane);
shmob_drm_plane_disable(plane);
drm_plane_cleanup(plane);
kfree(splane);
}
static const struct drm_plane_funcs shmob_drm_plane_funcs = {
.update_plane = shmob_drm_plane_update,
.disable_plane = shmob_drm_plane_disable,
.destroy = shmob_drm_plane_destroy,
};
static const uint32_t formats[] = {
DRM_FORMAT_RGB565,
DRM_FORMAT_RGB888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_NV12,
DRM_FORMAT_NV21,
DRM_FORMAT_NV16,
DRM_FORMAT_NV61,
DRM_FORMAT_NV24,
DRM_FORMAT_NV42,
};
int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index)
{
struct shmob_drm_plane *splane;
int ret;
splane = kzalloc(sizeof(*splane), GFP_KERNEL);
if (splane == NULL)
return -ENOMEM;
splane->index = index;
splane->alpha = 255;
ret = drm_plane_init(sdev->ddev, &splane->plane, 1,
&shmob_drm_plane_funcs, formats,
ARRAY_SIZE(formats), false);
if (ret < 0)
kfree(splane);
return ret;
}

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/*
* shmob_drm_plane.h -- SH Mobile DRM Planes
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SHMOB_DRM_PLANE_H__
#define __SHMOB_DRM_PLANE_H__
struct shmob_drm_device;
int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index);
void shmob_drm_plane_setup(struct drm_plane *plane);
#endif /* __SHMOB_DRM_PLANE_H__ */

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/*
* shmob_drm_regs.h -- SH Mobile DRM registers
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SHMOB_DRM_REGS_H__
#define __SHMOB_DRM_REGS_H__
#include <linux/io.h>
/* Register definitions */
#define LDDCKPAT1R 0x400
#define LDDCKPAT2R 0x404
#define LDDCKR 0x410
#define LDDCKR_ICKSEL_BUS (0 << 16)
#define LDDCKR_ICKSEL_MIPI (1 << 16)
#define LDDCKR_ICKSEL_HDMI (2 << 16)
#define LDDCKR_ICKSEL_EXT (3 << 16)
#define LDDCKR_ICKSEL_MASK (7 << 16)
#define LDDCKR_MOSEL (1 << 6)
#define LDDCKSTPR 0x414
#define LDDCKSTPR_DCKSTS (1 << 16)
#define LDDCKSTPR_DCKSTP (1 << 0)
#define LDMT1R 0x418
#define LDMT1R_VPOL (1 << 28)
#define LDMT1R_HPOL (1 << 27)
#define LDMT1R_DWPOL (1 << 26)
#define LDMT1R_DIPOL (1 << 25)
#define LDMT1R_DAPOL (1 << 24)
#define LDMT1R_HSCNT (1 << 17)
#define LDMT1R_DWCNT (1 << 16)
#define LDMT1R_IFM (1 << 12)
#define LDMT1R_MIFTYP_RGB8 (0x0 << 0)
#define LDMT1R_MIFTYP_RGB9 (0x4 << 0)
#define LDMT1R_MIFTYP_RGB12A (0x5 << 0)
#define LDMT1R_MIFTYP_RGB12B (0x6 << 0)
#define LDMT1R_MIFTYP_RGB16 (0x7 << 0)
#define LDMT1R_MIFTYP_RGB18 (0xa << 0)
#define LDMT1R_MIFTYP_RGB24 (0xb << 0)
#define LDMT1R_MIFTYP_YCBCR (0xf << 0)
#define LDMT1R_MIFTYP_SYS8A (0x0 << 0)
#define LDMT1R_MIFTYP_SYS8B (0x1 << 0)
#define LDMT1R_MIFTYP_SYS8C (0x2 << 0)
#define LDMT1R_MIFTYP_SYS8D (0x3 << 0)
#define LDMT1R_MIFTYP_SYS9 (0x4 << 0)
#define LDMT1R_MIFTYP_SYS12 (0x5 << 0)
#define LDMT1R_MIFTYP_SYS16A (0x7 << 0)
#define LDMT1R_MIFTYP_SYS16B (0x8 << 0)
#define LDMT1R_MIFTYP_SYS16C (0x9 << 0)
#define LDMT1R_MIFTYP_SYS18 (0xa << 0)
#define LDMT1R_MIFTYP_SYS24 (0xb << 0)
#define LDMT1R_MIFTYP_MASK (0xf << 0)
#define LDMT2R 0x41c
#define LDMT2R_CSUP_MASK (7 << 26)
#define LDMT2R_CSUP_SHIFT 26
#define LDMT2R_RSV (1 << 25)
#define LDMT2R_VSEL (1 << 24)
#define LDMT2R_WCSC_MASK (0xff << 16)
#define LDMT2R_WCSC_SHIFT 16
#define LDMT2R_WCEC_MASK (0xff << 8)
#define LDMT2R_WCEC_SHIFT 8
#define LDMT2R_WCLW_MASK (0xff << 0)
#define LDMT2R_WCLW_SHIFT 0
#define LDMT3R 0x420
#define LDMT3R_RDLC_MASK (0x3f << 24)
#define LDMT3R_RDLC_SHIFT 24
#define LDMT3R_RCSC_MASK (0xff << 16)
#define LDMT3R_RCSC_SHIFT 16
#define LDMT3R_RCEC_MASK (0xff << 8)
#define LDMT3R_RCEC_SHIFT 8
#define LDMT3R_RCLW_MASK (0xff << 0)
#define LDMT3R_RCLW_SHIFT 0
#define LDDFR 0x424
#define LDDFR_CF1 (1 << 18)
#define LDDFR_CF0 (1 << 17)
#define LDDFR_CC (1 << 16)
#define LDDFR_YF_420 (0 << 8)
#define LDDFR_YF_422 (1 << 8)
#define LDDFR_YF_444 (2 << 8)
#define LDDFR_YF_MASK (3 << 8)
#define LDDFR_PKF_ARGB32 (0x00 << 0)
#define LDDFR_PKF_RGB16 (0x03 << 0)
#define LDDFR_PKF_RGB24 (0x0b << 0)
#define LDDFR_PKF_MASK (0x1f << 0)
#define LDSM1R 0x428
#define LDSM1R_OS (1 << 0)
#define LDSM2R 0x42c
#define LDSM2R_OSTRG (1 << 0)
#define LDSA1R 0x430
#define LDSA2R 0x434
#define LDMLSR 0x438
#define LDWBFR 0x43c
#define LDWBCNTR 0x440
#define LDWBAR 0x444
#define LDHCNR 0x448
#define LDHSYNR 0x44c
#define LDVLNR 0x450
#define LDVSYNR 0x454
#define LDHPDR 0x458
#define LDVPDR 0x45c
#define LDPMR 0x460
#define LDPMR_LPS (3 << 0)
#define LDINTR 0x468
#define LDINTR_FE (1 << 10)
#define LDINTR_VSE (1 << 9)
#define LDINTR_VEE (1 << 8)
#define LDINTR_FS (1 << 2)
#define LDINTR_VSS (1 << 1)
#define LDINTR_VES (1 << 0)
#define LDINTR_STATUS_MASK (0xff << 0)
#define LDSR 0x46c
#define LDSR_MSS (1 << 10)
#define LDSR_MRS (1 << 8)
#define LDSR_AS (1 << 1)
#define LDCNT1R 0x470
#define LDCNT1R_DE (1 << 0)
#define LDCNT2R 0x474
#define LDCNT2R_BR (1 << 8)
#define LDCNT2R_MD (1 << 3)
#define LDCNT2R_SE (1 << 2)
#define LDCNT2R_ME (1 << 1)
#define LDCNT2R_DO (1 << 0)
#define LDRCNTR 0x478
#define LDRCNTR_SRS (1 << 17)
#define LDRCNTR_SRC (1 << 16)
#define LDRCNTR_MRS (1 << 1)
#define LDRCNTR_MRC (1 << 0)
#define LDDDSR 0x47c
#define LDDDSR_LS (1 << 2)
#define LDDDSR_WS (1 << 1)
#define LDDDSR_BS (1 << 0)
#define LDHAJR 0x4a0
#define LDDWD0R 0x800
#define LDDWDxR_WDACT (1 << 28)
#define LDDWDxR_RSW (1 << 24)
#define LDDRDR 0x840
#define LDDRDR_RSR (1 << 24)
#define LDDRDR_DRD_MASK (0x3ffff << 0)
#define LDDWAR 0x900
#define LDDWAR_WA (1 << 0)
#define LDDRAR 0x904
#define LDDRAR_RA (1 << 0)
#define LDBCR 0xb00
#define LDBCR_UPC(n) (1 << ((n) + 16))
#define LDBCR_UPF(n) (1 << ((n) + 8))
#define LDBCR_UPD(n) (1 << ((n) + 0))
#define LDBnBSIFR(n) (0xb20 + (n) * 0x20 + 0x00)
#define LDBBSIFR_EN (1 << 31)
#define LDBBSIFR_VS (1 << 29)
#define LDBBSIFR_BRSEL (1 << 28)
#define LDBBSIFR_MX (1 << 27)
#define LDBBSIFR_MY (1 << 26)
#define LDBBSIFR_CV3 (3 << 24)
#define LDBBSIFR_CV2 (2 << 24)
#define LDBBSIFR_CV1 (1 << 24)
#define LDBBSIFR_CV0 (0 << 24)
#define LDBBSIFR_CV_MASK (3 << 24)
#define LDBBSIFR_LAY_MASK (0xff << 16)
#define LDBBSIFR_LAY_SHIFT 16
#define LDBBSIFR_ROP3_MASK (0xff << 16)
#define LDBBSIFR_ROP3_SHIFT 16
#define LDBBSIFR_AL_PL8 (3 << 14)
#define LDBBSIFR_AL_PL1 (2 << 14)
#define LDBBSIFR_AL_PK (1 << 14)
#define LDBBSIFR_AL_1 (0 << 14)
#define LDBBSIFR_AL_MASK (3 << 14)
#define LDBBSIFR_SWPL (1 << 10)
#define LDBBSIFR_SWPW (1 << 9)
#define LDBBSIFR_SWPB (1 << 8)
#define LDBBSIFR_RY (1 << 7)
#define LDBBSIFR_CHRR_420 (2 << 0)
#define LDBBSIFR_CHRR_422 (1 << 0)
#define LDBBSIFR_CHRR_444 (0 << 0)
#define LDBBSIFR_RPKF_ARGB32 (0x00 << 0)
#define LDBBSIFR_RPKF_RGB16 (0x03 << 0)
#define LDBBSIFR_RPKF_RGB24 (0x0b << 0)
#define LDBBSIFR_RPKF_MASK (0x1f << 0)
#define LDBnBSSZR(n) (0xb20 + (n) * 0x20 + 0x04)
#define LDBBSSZR_BVSS_MASK (0xfff << 16)
#define LDBBSSZR_BVSS_SHIFT 16
#define LDBBSSZR_BHSS_MASK (0xfff << 0)
#define LDBBSSZR_BHSS_SHIFT 0
#define LDBnBLOCR(n) (0xb20 + (n) * 0x20 + 0x08)
#define LDBBLOCR_CVLC_MASK (0xfff << 16)
#define LDBBLOCR_CVLC_SHIFT 16
#define LDBBLOCR_CHLC_MASK (0xfff << 0)
#define LDBBLOCR_CHLC_SHIFT 0
#define LDBnBSMWR(n) (0xb20 + (n) * 0x20 + 0x0c)
#define LDBBSMWR_BSMWA_MASK (0xffff << 16)
#define LDBBSMWR_BSMWA_SHIFT 16
#define LDBBSMWR_BSMW_MASK (0xffff << 0)
#define LDBBSMWR_BSMW_SHIFT 0
#define LDBnBSAYR(n) (0xb20 + (n) * 0x20 + 0x10)
#define LDBBSAYR_FG1A_MASK (0xff << 24)
#define LDBBSAYR_FG1A_SHIFT 24
#define LDBBSAYR_FG1R_MASK (0xff << 16)
#define LDBBSAYR_FG1R_SHIFT 16
#define LDBBSAYR_FG1G_MASK (0xff << 8)
#define LDBBSAYR_FG1G_SHIFT 8
#define LDBBSAYR_FG1B_MASK (0xff << 0)
#define LDBBSAYR_FG1B_SHIFT 0
#define LDBnBSACR(n) (0xb20 + (n) * 0x20 + 0x14)
#define LDBBSACR_FG2A_MASK (0xff << 24)
#define LDBBSACR_FG2A_SHIFT 24
#define LDBBSACR_FG2R_MASK (0xff << 16)
#define LDBBSACR_FG2R_SHIFT 16
#define LDBBSACR_FG2G_MASK (0xff << 8)
#define LDBBSACR_FG2G_SHIFT 8
#define LDBBSACR_FG2B_MASK (0xff << 0)
#define LDBBSACR_FG2B_SHIFT 0
#define LDBnBSAAR(n) (0xb20 + (n) * 0x20 + 0x18)
#define LDBBSAAR_AP_MASK (0xff << 24)
#define LDBBSAAR_AP_SHIFT 24
#define LDBBSAAR_R_MASK (0xff << 16)
#define LDBBSAAR_R_SHIFT 16
#define LDBBSAAR_GY_MASK (0xff << 8)
#define LDBBSAAR_GY_SHIFT 8
#define LDBBSAAR_B_MASK (0xff << 0)
#define LDBBSAAR_B_SHIFT 0
#define LDBnBPPCR(n) (0xb20 + (n) * 0x20 + 0x1c)
#define LDBBPPCR_AP_MASK (0xff << 24)
#define LDBBPPCR_AP_SHIFT 24
#define LDBBPPCR_R_MASK (0xff << 16)
#define LDBBPPCR_R_SHIFT 16
#define LDBBPPCR_GY_MASK (0xff << 8)
#define LDBBPPCR_GY_SHIFT 8
#define LDBBPPCR_B_MASK (0xff << 0)
#define LDBBPPCR_B_SHIFT 0
#define LDBnBBGCL(n) (0xb10 + (n) * 0x04)
#define LDBBBGCL_BGA_MASK (0xff << 24)
#define LDBBBGCL_BGA_SHIFT 24
#define LDBBBGCL_BGR_MASK (0xff << 16)
#define LDBBBGCL_BGR_SHIFT 16
#define LDBBBGCL_BGG_MASK (0xff << 8)
#define LDBBBGCL_BGG_SHIFT 8
#define LDBBBGCL_BGB_MASK (0xff << 0)
#define LDBBBGCL_BGB_SHIFT 0
#define LCDC_SIDE_B_OFFSET 0x1000
#define LCDC_MIRROR_OFFSET 0x2000
static inline bool lcdc_is_banked(u32 reg)
{
switch (reg) {
case LDMT1R:
case LDMT2R:
case LDMT3R:
case LDDFR:
case LDSM1R:
case LDSA1R:
case LDSA2R:
case LDMLSR:
case LDWBFR:
case LDWBCNTR:
case LDWBAR:
case LDHCNR:
case LDHSYNR:
case LDVLNR:
case LDVSYNR:
case LDHPDR:
case LDVPDR:
case LDHAJR:
return true;
default:
return reg >= LDBnBBGCL(0) && reg <= LDBnBPPCR(3);
}
}
static inline void lcdc_write_mirror(struct shmob_drm_device *sdev, u32 reg,
u32 data)
{
iowrite32(data, sdev->mmio + reg + LCDC_MIRROR_OFFSET);
}
static inline void lcdc_write(struct shmob_drm_device *sdev, u32 reg, u32 data)
{
iowrite32(data, sdev->mmio + reg);
if (lcdc_is_banked(reg))
iowrite32(data, sdev->mmio + reg + LCDC_SIDE_B_OFFSET);
}
static inline u32 lcdc_read(struct shmob_drm_device *sdev, u32 reg)
{
return ioread32(sdev->mmio + reg);
}
static inline int lcdc_wait_bit(struct shmob_drm_device *sdev, u32 reg,
u32 mask, u32 until)
{
unsigned long timeout = jiffies + msecs_to_jiffies(5);
while ((lcdc_read(sdev, reg) & mask) != until) {
if (time_after(jiffies, timeout))
return -ETIMEDOUT;
cpu_relax();
}
return 0;
}
#endif /* __SHMOB_DRM_REGS_H__ */

3
include/drm/drm_crtc.h
View File

@ -590,6 +590,7 @@ struct drm_connector {
int video_latency[2]; /* [0]: progressive, [1]: interlaced */
int audio_latency[2];
int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
unsigned bad_edid_counter;
};
/**
@ -1032,7 +1033,7 @@ extern int drm_add_modes_noedid(struct drm_connector *connector,
int hdisplay, int vdisplay);
extern int drm_edid_header_is_valid(const u8 *raw_edid);
extern bool drm_edid_block_valid(u8 *raw_edid, int block);
extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
extern bool drm_edid_is_valid(struct edid *edid);
struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
int hsize, int vsize, int fresh,

27
include/drm/drm_fb_cma_helper.h Normal file
View File

@ -0,0 +1,27 @@
#ifndef __DRM_FB_CMA_HELPER_H__
#define __DRM_FB_CMA_HELPER_H__
struct drm_fbdev_cma;
struct drm_gem_cma_object;
struct drm_framebuffer;
struct drm_device;
struct drm_file;
struct drm_mode_fb_cmd2;
struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev,
unsigned int preferred_bpp, unsigned int num_crtc,
unsigned int max_conn_count);
void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma);
void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma);
void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma);
struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev,
struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd);
struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
unsigned int plane);
#endif

2
include/drm/drm_fourcc.h
View File

@ -106,6 +106,8 @@
#define DRM_FORMAT_NV21 fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
#define DRM_FORMAT_NV16 fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
#define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
#define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */
#define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
/* 2 non contiguous plane YCbCr */
#define DRM_FORMAT_NV12M fourcc_code('N', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane */

44
include/drm/drm_gem_cma_helper.h Normal file
View File

@ -0,0 +1,44 @@
#ifndef __DRM_GEM_CMA_HELPER_H__
#define __DRM_GEM_CMA_HELPER_H__
struct drm_gem_cma_object {
struct drm_gem_object base;
dma_addr_t paddr;
void *vaddr;
};
static inline struct drm_gem_cma_object *
to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
{
return container_of(gem_obj, struct drm_gem_cma_object, base);
}
/* free gem object. */
void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
/* create memory region for drm framebuffer. */
int drm_gem_cma_dumb_create(struct drm_file *file_priv,
struct drm_device *drm, struct drm_mode_create_dumb *args);
/* map memory region for drm framebuffer to user space. */
int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *drm, uint32_t handle, uint64_t *offset);
/* set vm_flags and we can change the vm attribute to other one at here. */
int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);
/*
* destroy memory region allocated.
* - a gem handle and physical memory region pointed by a gem object
* would be released by drm_gem_handle_delete().
*/
int drm_gem_cma_dumb_destroy(struct drm_file *file_priv,
struct drm_device *drm, unsigned int handle);
/* allocate physical memory. */
struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
unsigned int size);
extern const struct vm_operations_struct drm_gem_cma_vm_ops;
#endif /* __DRM_GEM_CMA_HELPER_H__ */

99
include/linux/platform_data/shmob_drm.h Normal file
View File

@ -0,0 +1,99 @@
/*
* shmob_drm.h -- SH Mobile DRM driver
*
* Copyright (C) 2012 Renesas Corporation
*
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SHMOB_DRM_H__
#define __SHMOB_DRM_H__
#include <linux/kernel.h>
#include <drm/drm_mode.h>
struct sh_mobile_meram_cfg;
struct sh_mobile_meram_info;
enum shmob_drm_clk_source {
SHMOB_DRM_CLK_BUS,
SHMOB_DRM_CLK_PERIPHERAL,
SHMOB_DRM_CLK_EXTERNAL,
};
enum shmob_drm_interface {
SHMOB_DRM_IFACE_RGB8, /* 24bpp, 8:8:8 */
SHMOB_DRM_IFACE_RGB9, /* 18bpp, 9:9 */
SHMOB_DRM_IFACE_RGB12A, /* 24bpp, 12:12 */
SHMOB_DRM_IFACE_RGB12B, /* 12bpp */
SHMOB_DRM_IFACE_RGB16, /* 16bpp */
SHMOB_DRM_IFACE_RGB18, /* 18bpp */
SHMOB_DRM_IFACE_RGB24, /* 24bpp */
SHMOB_DRM_IFACE_YUV422, /* 16bpp */
SHMOB_DRM_IFACE_SYS8A, /* 24bpp, 8:8:8 */
SHMOB_DRM_IFACE_SYS8B, /* 18bpp, 8:8:2 */
SHMOB_DRM_IFACE_SYS8C, /* 18bpp, 2:8:8 */
SHMOB_DRM_IFACE_SYS8D, /* 16bpp, 8:8 */
SHMOB_DRM_IFACE_SYS9, /* 18bpp, 9:9 */
SHMOB_DRM_IFACE_SYS12, /* 24bpp, 12:12 */
SHMOB_DRM_IFACE_SYS16A, /* 16bpp */
SHMOB_DRM_IFACE_SYS16B, /* 18bpp, 16:2 */
SHMOB_DRM_IFACE_SYS16C, /* 18bpp, 2:16 */
SHMOB_DRM_IFACE_SYS18, /* 18bpp */
SHMOB_DRM_IFACE_SYS24, /* 24bpp */
};
struct shmob_drm_backlight_data {
const char *name;
int max_brightness;
int (*get_brightness)(void);
int (*set_brightness)(int brightness);
};
struct shmob_drm_panel_data {
unsigned int width_mm; /* Panel width in mm */
unsigned int height_mm; /* Panel height in mm */
struct drm_mode_modeinfo mode;
};
struct shmob_drm_sys_interface_data {
unsigned int read_latch:6;
unsigned int read_setup:8;
unsigned int read_cycle:8;
unsigned int read_strobe:8;
unsigned int write_setup:8;
unsigned int write_cycle:8;
unsigned int write_strobe:8;
unsigned int cs_setup:3;
unsigned int vsync_active_high:1;
unsigned int vsync_dir_input:1;
};
#define SHMOB_DRM_IFACE_FL_DWPOL (1 << 0) /* Rising edge dot clock data latch */
#define SHMOB_DRM_IFACE_FL_DIPOL (1 << 1) /* Active low display enable */
#define SHMOB_DRM_IFACE_FL_DAPOL (1 << 2) /* Active low display data */
#define SHMOB_DRM_IFACE_FL_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */
#define SHMOB_DRM_IFACE_FL_DWCNT (1 << 4) /* Disable dotclock during blanking */
struct shmob_drm_interface_data {
enum shmob_drm_interface interface;
struct shmob_drm_sys_interface_data sys;
unsigned int clk_div;
unsigned int flags;
};
struct shmob_drm_platform_data {
enum shmob_drm_clk_source clk_source;
struct shmob_drm_interface_data iface;
struct shmob_drm_panel_data panel;
struct shmob_drm_backlight_data backlight;
const struct sh_mobile_meram_cfg *meram;
};
#endif /* __SHMOB_DRM_H__ */